CN107015281B

CN107015281B - Air conditioner and detection control device and method for moving part in air conditioner

Info

Publication number: CN107015281B
Application number: CN201710401713.2A
Authority: CN
Inventors: 袁光
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2017-05-31
Filing date: 2017-05-31
Publication date: 2020-09-25
Anticipated expiration: 2037-05-31
Also published as: CN107015281A

Abstract

The invention discloses an air conditioner and a detection control device and a method for a moving part in the air conditioner, wherein the device comprises the following components: the magnetic assembly is fixed on a driving part of the driving motion part and comprises z layers of magnetic rings, and a plurality of N magnetic poles and/or a plurality of S magnetic poles are distributed on the detection surface of each layer of magnetic rings; the Hall detection assemblies are arranged close to the detection surfaces of the corresponding magnetic rings, each Hall detection assembly induces the magnetic pole change of the corresponding magnetic ring to generate a corresponding induction signal when the moving part moves, the corresponding magnetic poles of the x layers of magnetic rings are sequentially staggered by a preset angle, and the connecting lines of the x Hall detection assemblies are positioned in the plane where the axes of the x layers of magnetic rings are positioned; the control unit is connected with the x Hall detection assemblies and judges whether the moving part is blocked according to x-path sensing signals generated by the x Hall detection assemblies, so that the blocking can be rapidly and accurately detected, and the sensitivity is high.

Description

Air conditioner and detection control device and method for moving part in air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to a detection control device for a moving part in an air conditioner, the air conditioner and a detection control method for the moving part in the air conditioner.

Background

The more and more the related air conditioners adopt a sliding switch door or other rotary motion devices, for example, the door panel is opened towards two sides or one side after the air conditioner is started, or a rotary component rotates to the position that the grille is aligned with the air outlet, and the door panel is closed or the rotary component rotates to the position that the baffle plate is aligned with the air outlet after the air conditioner is closed, so that the aesthetic degree of the product is greatly improved. However, the power mechanism of the door panel is usually an open-loop control stepping motor, and the moment is large. If there is the foreign matter to block or close the in-process at the door plant and the in-process finger stretches in wherein carelessly, the control unit can not know and stall the motor, power unit is in interference state this moment to not only can cause the harm to the structure of product and electrical apparatus, if the finger presss from both sides wherein still can produce very big pain, seriously reduce the use of product and feel.

The door panel is monitored whether to be clamped or not by additionally arranging a grating strip on the door panel and additionally arranging a light-emitting tube and a light-receiving tube on two sides of the grating strip respectively, but the door panel is complex in structure and long in detection time, and the door panel is detected whether to be clamped or not by utilizing the principle that an inductance value changes to cause impedance change of a parallel circuit after an inductor and a capacitor parallel resonance circuit clamps an obstacle, but the service life is limited and the detection function is likely to fail along with the increase of the operation time.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a detection control device for moving parts in an air conditioner, which can solve the problem that the jamming cannot be detected accurately in time.

Another object of the present invention is to provide an air conditioner. Another object of the present invention is to provide a method for controlling detection of moving parts in an air conditioner.

In order to achieve the above object, an aspect of the present invention provides a detection control apparatus for a moving part in an air conditioner, including: the magnetic assembly is fixed on a driving part for driving the moving part and comprises z layers of magnetic rings, a plurality of N magnetic poles and/or a plurality of S magnetic poles are/is distributed on the detection surface of each layer of magnetic ring, wherein z is an integer larger than 1; the Hall detection assemblies are arranged close to the detection surfaces corresponding to the magnetic rings, each Hall detection assembly induces the magnetic pole change of the corresponding magnetic ring to generate corresponding induction signals when the driving part drives the moving part to move, the corresponding magnetic poles of the magnetic rings on the x layers are sequentially staggered by preset angles, and connecting lines of the Hall detection assemblies on the x layers are positioned in a plane where the axes of the magnetic rings on the x layers are positioned, so that the x induction signals are sequentially staggered by preset phase angles, and x is an integer larger than 1; the control unit is connected with the x Hall detection assemblies and judges whether the moving part is blocked or not according to the x paths of induction signals generated by the x Hall detection assemblies.

According to the detection control device of the moving part in the air conditioner, the magnetic assembly is fixed on the driving part for driving the moving part, the magnetic assembly comprises z layers of magnetic rings, a plurality of N magnetic poles and/or a plurality of S magnetic poles are distributed on the detection surface of each layer of magnetic rings, x Hall detection assemblies are fixedly arranged close to the detection surface of the x layers of magnetic rings, each Hall detection assembly induces the magnetic pole change of the corresponding magnetic ring when the driving part drives the moving part to move so as to generate corresponding induction signals, the corresponding magnetic poles of the x layers of magnetic rings are sequentially staggered by preset angles, and the connecting lines of the x Hall detection assemblies are positioned in the plane where the axes of the x layers of magnetic rings are positioned, so that the x induction signals are sequentially staggered by preset phase angles, the control unit judges whether the moving part is blocked according to the x lines of induction signals generated by the x Hall detection assemblies, and can effectively judge whether the moving part is blocked, so as to in time take corresponding measure to adjust drive assembly's motion, avoid causing the damage to drive assembly who drives motion part to cooperate through multilayer magnetic ring and many hall determine module and can shorten check-out time, promote detectivity. In addition, the device occupies less space, has low cost, is convenient to install, has long service life, and is stable and reliable.

According to one embodiment of the invention, the driving part comprises a driving motor, and the x layers of magnetic rings are fixed on a rotating component of the driving motor.

According to one embodiment of the invention, the rotating component of the drive motor is a transmission gear or a drive shaft.

According to one embodiment of the invention, the middle of the upper part of the layer x of magnetic rings is provided with a fixing hole, and the layer x of magnetic rings are riveted with the driving part through the fixing hole.

According to one embodiment of the invention, the magnetizing surface detection surface of the magnetic ring is a peripheral side surface of the magnetic ring or an inner end surface of the magnetic ring.

According to one embodiment of the invention, when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring, the width of each N magnetic pole is the same, and the width of each S magnetic pole is the same; or when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the width of each N magnetic pole is the same; or when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the width of each S magnetic pole is the same.

According to one embodiment of the invention, when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring, the N magnetic poles and the S magnetic poles are arranged at intervals one by one; when the plurality of N magnetic poles are distributed on the detection surface of the magnetic ring, a first blank area is arranged between the adjacent N magnetic poles; when the plurality of S magnetic poles are distributed on the detection surface of the magnetic ring, a second blank area is arranged between the adjacent S magnetic poles.

According to one embodiment of the invention, the preset angles include a first preset angle, a second preset angle and a third preset angle, when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of each layer of the magnetic ring, the x layers of the magnetic rings are staggered by the third preset angle according to the sum of the numbers of the N magnetic poles and the S magnetic poles; when the plurality of N magnetic poles are distributed on the detection surface of each layer of magnetic ring, the magnetic rings on the x layers are staggered by a first preset angle according to the sum of the number of the N magnetic poles and the first blank area; when the plurality of S magnetic poles are distributed on the detection surface of each layer of magnetic ring at intervals, the magnetic rings on the x layers are staggered by a second preset angle according to the sum of the number of the S magnetic poles and the second blank area.

According to an embodiment of the invention, the first preset angle or the second preset angle, or the third preset angle is determined according to the following formula:

d＝360°/s/x

wherein d is the first preset angle, the second preset angle, or the third preset angle, x is the number of layers of the magnetic ring, and S is the sum of the numbers of the N magnetic poles and the S magnetic poles when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of each layer of the magnetic ring, or is the sum of the numbers of the N magnetic poles and the blank area when the plurality of N magnetic poles are distributed on the detection surface of each layer of the magnetic ring, or is the sum of the numbers of the S magnetic poles and the blank area when the plurality of S magnetic poles are distributed on the detection surface of each layer of the magnetic ring.

According to one embodiment of the invention, when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on each layer of magnetic ring, the corresponding Hall detection assembly generates a first level when facing the N magnetic poles and a second level when facing the S magnetic poles, and when the plurality of N magnetic poles are distributed on each layer of magnetic ring at intervals, the corresponding Hall detection assembly generates the first level when facing the N magnetic poles and the second level when facing the first blank area; when the plurality of S magnetic poles are distributed on each layer of magnetic ring at intervals, the corresponding Hall detection assembly generates a first level when facing the S magnetic poles and generates a second level when facing the second blank area.

According to an embodiment of the present invention, the x-path sensing signal constructs y level state combinations, y > x, and the control unit includes: a timer for starting timing when any one of the y combinations of level states occurs to time the duration of each of the y combinations of level states; and the control chip is connected with the timer, and judges that the moving part is blocked when the duration of any combination of the level states is greater than a preset time threshold.

According to an embodiment of the present invention, the number y of the level state combinations is x times the number of level states of each of the sensing signals.

In order to achieve the above object, according to another embodiment of the present invention, an air conditioner is provided, which includes the above detection control device for moving parts in the air conditioner.

According to the air conditioner provided by the embodiment of the invention, whether the moving part is blocked or not can be effectively judged through the detection control device of the moving part, and the air conditioner is high in detection sensitivity, small in occupied space, low in cost, convenient to install, long in service life, stable and reliable.

In order to achieve the above object, a further embodiment of the present invention provides a method for detecting and controlling a moving component in an air conditioner, where the air conditioner includes a magnetic component and x hall detecting components, the magnetic component is fixed on a driving component for driving the moving component, the magnetic component includes z layers of magnetic rings, a plurality of N magnetic poles and/or a plurality of S magnetic poles are distributed on a detecting surface of each layer of magnetic ring, the hall detecting components are matched with the magnetic poles on the detecting surface of the corresponding magnetic ring in terms of magnetism, the x hall detecting components are disposed close to the detecting surface corresponding to the magnetic rings, corresponding magnetic poles of the x layers of magnetic rings are sequentially staggered by a preset angle, and a connecting line of the x hall detecting components is located in a plane where axes of the x layers of magnetic rings are located, so that x induction signals are sequentially staggered by a preset phase angle, and z is an integer greater than 1, x is an integer greater than 1, the method comprising the steps of: when the driving part drives the moving part to move, each Hall detection assembly induces the magnetic pole change of the corresponding magnetic ring to generate a corresponding induction signal; and judging whether the moving part is clamped or not according to the x-path sensing signals generated by the x Hall detection assemblies.

According to the detection control method of the moving part in the air conditioner provided by the embodiment of the invention, a magnetic ring assembly is fixed on a driving part for driving the moving part, the magnetic assembly comprises z layers of magnetic rings, a plurality of N magnetic poles and/or a plurality of S magnetic poles are distributed on each layer of magnetic rings, x Hall detection assemblies are fixedly arranged close to the detection surface of the x layers of magnetic rings, each Hall detection assembly induces the magnetic pole change of the corresponding magnetic ring when the driving part drives the moving part to move so as to generate corresponding induction signals, the corresponding magnetic poles of the x layers of magnetic rings are sequentially staggered by preset angles, and the connecting lines of the x Hall detection assemblies are positioned in the plane where the axis of the x layers of magnetic rings is positioned, so that the x induction signals are sequentially staggered by preset phase angles, and further whether the moving part is blocked or not is judged according to the x lines of induction signals generated by the x Hall detection assemblies, thereby effectively judging whether the moving part is blocked or not, so as to in time take corresponding measure to adjust drive assembly's motion, avoid causing the damage to drive assembly who drives motion part to cooperate through multilayer magnetic ring and many hall determine module and can shorten check-out time, promote detectivity. In addition, the method has the advantages of small occupied space, low cost, convenience in installation, long service life, stability and reliability.

According to an embodiment of the present invention, when the detecting surface of the magnetic ring is distributed with a plurality of N magnetic poles and a plurality of S magnetic poles, the N magnetic poles and the S magnetic poles are arranged at intervals one by one, and the hall detecting assembly generates a first level when facing the N magnetic poles and a second level when facing the S magnetic poles, or, when the plurality of N magnetic poles are distributed on the detecting surface of the magnetic ring, a first blank area is arranged between adjacent N magnetic poles, and the hall detecting assembly generates a first level when facing the N magnetic poles and a second level when facing the first blank area, or, when the plurality of S magnetic poles are distributed on the detecting surface of the magnetic ring, a second blank area is arranged between adjacent S magnetic poles, and the hall detecting assembly generates a first level when facing the S magnetic poles and a second level when facing the second blank area, the x-path sensing signals construct y level state combinations, y > x, and the judging whether the moving part is clamped or not according to the x sensing signals comprises the following steps: starting timing at the occurrence of any one of the y said level state combinations to time the duration of each of the y said level state combinations; and judging that the moving part is blocked when the duration of any type of level state combination is greater than a preset time threshold.

Drawings

Fig. 1 is a block diagram schematically illustrating a detection control apparatus for a moving part in an air conditioner according to an embodiment of the present invention;

FIG. 2a is a front view of a magnetic ring according to one embodiment of the present invention, wherein the magnetic ring is side-magnetized and each layer of magnetic ring is filled with N and S magnetic poles at intervals;

FIG. 2b is a side view of FIG. 2 a;

FIG. 2c is another side view of FIG. 2 a;

FIG. 3 is a schematic structural diagram of a magnetic ring according to an embodiment of the present invention, wherein the magnetic ring is end-magnetized and each layer of magnetic ring is filled with N magnetic poles and S magnetic poles at intervals;

FIG. 4a is a front view of a magnetic ring according to one embodiment of the present invention, wherein the magnetic ring is laterally magnetized and each layer of magnetic ring is filled with N magnetic poles and blank areas at intervals;

FIG. 4b is a side view of FIG. 4 a;

FIG. 4c is another side view of FIG. 4 a;

FIG. 5 is a schematic structural diagram of a magnetic ring according to an embodiment of the present invention, wherein the magnetic ring is end-magnetized and each layer of magnetic ring is filled with N magnetic poles and blank areas at intervals;

FIG. 6a is a front view of a magnetic ring according to one embodiment of the present invention, wherein the magnetic ring is side-magnetized and each layer of magnetic ring is filled with S-poles and blank areas at intervals;

FIG. 6b is a side view of FIG. 6 a;

FIG. 6c is another side view of FIG. 6 a;

FIG. 7 is a schematic structural diagram of a magnetic ring according to an embodiment of the present invention, wherein the magnetic ring is end-magnetized and each layer of magnetic ring is filled with S magnetic poles and blank areas at intervals;

FIG. 8a is a schematic structural diagram of a detection control device for moving parts in an air conditioner according to an embodiment of the present invention, wherein magnetic rings are laterally magnetized and each layer of magnetic rings is filled with N magnetic poles and S magnetic poles at intervals;

FIG. 8b is a schematic structural diagram of a detecting and controlling device for moving parts in an air conditioner according to another embodiment of the present invention, wherein the magnetic rings are laterally magnetized and each layer of magnetic rings is filled with N magnetic poles and S magnetic poles at intervals;

fig. 9 is a schematic structural diagram of a detection control device for moving parts in an air conditioner according to an embodiment of the present invention, wherein the magnetic rings are magnetized by end faces and each layer of magnetic rings is filled with N magnetic poles and S magnetic poles at intervals;

FIG. 10a is a schematic structural diagram of a detecting and controlling device for moving parts in an air conditioner according to an embodiment of the present invention, wherein magnetic rings are laterally magnetized and each layer of magnetic rings is filled with N magnetic poles and blank areas at intervals;

FIG. 10b is a schematic diagram of the detecting and controlling device for the moving parts in an air conditioner according to another embodiment of the present invention, wherein the magnetic rings are laterally magnetized and each layer of magnetic rings is filled with N magnetic poles and blank areas at intervals;

FIG. 11 is a schematic structural diagram of a detecting and controlling apparatus for moving parts in an air conditioner according to an embodiment of the present invention, wherein the magnetic rings are magnetized by end faces and each layer of magnetic rings is filled with N magnetic poles and blank areas at intervals;

FIG. 12a is a schematic structural diagram of a detecting and controlling device for moving parts in an air conditioner according to an embodiment of the present invention, wherein magnetic rings are laterally magnetized and each layer of magnetic rings is filled with S magnetic poles and blank areas at intervals;

FIG. 12b is a schematic diagram of the detecting and controlling device for the moving parts in an air conditioner according to another embodiment of the present invention, wherein the magnetic rings are laterally magnetized and each layer of magnetic rings is filled with S magnetic poles and blank areas at intervals;

FIG. 13 is a schematic structural diagram of a detecting and controlling apparatus for moving parts in an air conditioner according to an embodiment of the present invention, wherein the magnetic rings are magnetized by end faces and each layer of magnetic rings is filled with S magnetic poles and blank areas at intervals;

fig. 14 is a block diagram schematically illustrating a detection control apparatus for a moving part in an air conditioner according to an embodiment of the present invention;

FIG. 15 is a waveform diagram of the sensing signal output by the Hall sensing assembly according to one embodiment of the present invention, wherein the moving part is not stuck;

FIG. 16 is a waveform diagram of the sensing signal output by the Hall sensing assembly according to one embodiment of the present invention, wherein the moving part is stuck at time t 1;

FIG. 17 is a circuit schematic of a Hall sensing assembly according to one embodiment of the invention;

fig. 18 is a schematic view of a door panel of an air conditioner according to an embodiment of the present invention;

FIG. 19 is a schematic view of the mounting location of the drive member according to one embodiment of the present invention; and

fig. 20 is a flowchart of a detection control method of a moving part in an air conditioner according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Before describing an air conditioner and a detection control device and method for moving parts in the air conditioner according to an embodiment of the present invention, a door panel sticking detection technique in the related art will be briefly described.

The related art provides a sliding door detection control device, wherein a grating strip is additionally arranged on a door plate, a light emitting tube and a light receiving tube are respectively additionally arranged on two sides of the grating strip, a high-low level pulse feedback signal is generated by the interval light transmission of the grating strip when the door plate normally moves, and whether the door plate is clamped or not can be monitored by detecting the duration time of the high level or the low level.

The related art also proposes a sliding door detection control device, in which whether the door panel is stuck is detected by an impedance detection circuit, using the principle that an inductance value changes to cause a parallel circuit impedance change after an inductor and capacitor parallel resonance circuit clamps an obstacle.

For the detection control device in the first related art, the light emitting tube and the light receiving tube are respectively arranged on two sides of the grating, the structure is complex, the difficulty is high, and a certain gap is needed between the grating and the door panel. In addition, due to the adoption of the photoelectric principle, in order to avoid multiple factors such as ambient light interference, the light transmission and shading gaps of the grating cannot be too narrow, so that the duration time of high and low levels of feedback pulses is prolonged, the detection time of clamping stagnation is prolonged, the detection sensitivity is reduced, and pain can be sustained for a long time if fingers are clamped, so that the user cannot accept the feedback pulses.

For the detection control device in the second related art, the inductor used in the parallel circuit is a metal sheet with copper foil routing, the change of the inductance value is caused by the deformation of the metal sheet caused by an obstacle when the door panel is clamped, but the metal sheet is seriously extruded each time the door panel is closed, although the detection function is closed without the obstacle, the false detection cannot be caused, but the metal sheet is still seriously deformed, and the unrecoverable deformation or complete damage can be caused to the metal sheet after the detection control device is repeatedly closed, so that the service life of the device is limited, and the detection function is likely to fail after the operation time is prolonged. Moreover, the device is only suitable for a single-side door opening and closing device, cannot be used for a double-side door opening and closing device, is only suitable for clamping stagnation in the closing process, and cannot detect clamping stagnation in the opening process.

Based on the above, the embodiment of the invention provides an air conditioner and a detection control device and method for a moving part in the air conditioner.

The following describes a detection control apparatus for a moving part in an air conditioner according to an embodiment of an aspect of the present invention with reference to fig. 1 to 19. The detection control device of the moving part is used for detecting whether the moving part such as a door panel and the like is blocked or whether an obstacle is met.

As shown in fig. 1 to 13, the detection control device for a moving part in an air conditioner according to an embodiment of the present invention includes: a magnet ring assembly 11, x hall-effect sensing assemblies 20 and a control unit 30. The magnetic ring assembly 11 is fixed on a driving part of the driving moving part, the magnetic assembly 11 comprises x layers of magnetic rings 10, wherein z is an integer larger than 1. A plurality of N magnetic poles and/or a plurality of S magnetic poles are distributed at intervals on the detection surface of each layer of magnetic ring 10. According to an embodiment of the present invention, when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring 10, the N magnetic poles and the S magnetic poles are arranged at intervals one by one; when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring 10, a first blank area is arranged between the adjacent N magnetic poles; when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring 10, a second blank area is provided between adjacent S magnetic poles. That is, as shown in fig. 2a, 2b, 2c and 3, when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring 10, the N magnetic poles and the S magnetic poles are arranged on the detection surface of each layer of magnetic ring 10 at intervals one by one, that is, the arrangement rule on the magnetic ring 10 is N magnetic poles-S magnetic poles-N magnetic poles-S magnetic poles, and at this time, the magnetic ring 10 is a bipolar magnetic ring; as shown in fig. 4a, 4b, 4c and 5, when the magnetic ring 10 is filled with N magnetic poles at intervals, the N magnetic poles and the first blank regions are distributed at intervals on the detection surface of each layer of magnetic ring 10, that is, the arrangement rule on the magnetic ring 10 is N magnetic poles-first blank regions-N magnetic poles-first blank regions, and at this time, the magnetic ring 10 is a unipolar magnetic ring; as shown in fig. 6a, 6b, 6c and 7, when the magnetic ring 10 of each layer is filled with the S magnetic poles at intervals, the S magnetic poles and the blank regions are distributed at intervals on the detection surface of the magnetic ring 10 of each layer, that is, the arrangement rule on the magnetic ring 10 is S magnetic pole-second blank region-S magnetic pole-second blank region, and the magnetic ring 10 is a unipolar magnetic ring, where the blank regions including the first blank region or the second blank region are regions without any magnetism, that is, non-magnetic regions. The x hall detection assemblies 20 are matched with the magnetism of the magnetic poles on the detection surface of the corresponding magnetic ring 10, the hall detection assemblies 20 are arranged close to the detection surface of the corresponding magnetic ring 10, when the driving part drives the moving part to move, each hall detection assembly 20 induces the magnetic pole change of the corresponding magnetic ring 10 to correspondingly generate a corresponding induction signal, x is an integer larger than 1, and x can be smaller than or equal to z. That is to say, the x hall detecting elements 20 are disposed correspondingly to the detecting surfaces of the x layers of magnetic rings 10, that is, each hall detecting element 20 may be disposed correspondingly to the detecting surface of the corresponding magnetic ring 10, and the x hall detecting elements 20 may be close to the x layers of magnetic rings 10 but not in contact with the x layers of magnetic rings 10, and may be within the magnetic field sensing range of the x layers of magnetic rings 10.

The corresponding magnetic poles of the x layers of magnetic rings 10 are sequentially staggered by a preset angle, and the connecting lines of the x Hall detection assemblies 20 are positioned in the plane where the axes of the x layers of magnetic rings 10 are positioned, so that the x induction signals are sequentially staggered by a preset phase angle. That is, when the driving part drives the moving part to move, the x layers of magnetic rings 10 move synchronously with the driving part, and the x hall detection assemblies 20 are arranged on the same vertical line of the moving direction of the moving part. It should be noted that, as shown in fig. 2a, 2b, 2c and 3, the axis of the x layers of magnetic rings 10 may be a line zz passing through the center of the x layers of magnetic rings 10 and perpendicular to the circular cross section of the x layers of magnetic rings 10, and a plane where the axis of the x layers of magnetic rings 10 is located is perpendicular to the circular cross section of the x layers of magnetic rings 10.

It should be understood that the same arrangement rule can be adopted for the magnetic rings in the same layer x, for example, the arrangement rules of the magnetic rings 10 in the same layer z can be N magnetic pole-S magnetic pole-N magnetic pole-S magnetic pole. Alternatively, the magnetic rings 10 of different layers may have different arrangement rules, for example, the arrangement rule of the magnetic ring 10 of the first layer may be S-pole, second blank region, and the arrangement rule of the magnetic ring 10 of the second layer may be N-pole, first blank region, N-pole, first blank region. And, the number of the magnetic pole pairs of the x layers of magnetic rings 10 is the same, for example, the first layer of magnetic ring includes m pairs of S magnetic poles-the second blank region, and the second layer of magnetic ring also includes m pairs of N magnetic poles-the first blank region. Wherein, the magnetic poles of the rest (z-x) layers of magnetic rings 10 are not limited.

For example, when the first layer of magnetic rings 10 are arranged in a manner of S pole-second blank area-S pole-second blank area, the second layer of magnetic rings are arranged in a manner of N pole-first blank area-N pole-first blank area, and the third layer of magnetic rings are arranged in a manner of N pole-S pole-N pole-S pole, the number of pairs of S pole-second blank area of the first layer of magnetic rings, the number of pairs of N pole-first blank area of the second layer of magnetic rings, and the number of pairs of N pole-S pole of the third layer of magnetic rings are the same, e.g., m, and the number of S pole of the first layer of magnetic rings, the number of N pole of the second layer of magnetic rings, and the number of N pole of the third layer of magnetic rings generate the same sensing signal, the second blank area of the first layer of magnetic ring, the first blank area of the second layer of magnetic ring and the S magnetic pole of the third layer of magnetic ring generate another induction signal, then the N magnetic pole in the jth pair of magnetic poles of the second layer of magnetic ring is staggered by a preset angle towards the first direction relative to the S magnetic pole in the jth pair of magnetic poles of the first layer of magnetic ring, the N magnetic pole in the jth pair of magnetic poles of the third layer of magnetic ring is staggered by a preset angle towards the first direction relative to the N magnetic pole in the jth pair of magnetic poles of the second layer of magnetic ring, similarly, the first blank area in the jth pair of magnetic poles of the second layer of magnetic ring is staggered by a preset angle towards the first direction relative to the second blank area in the jth pair of magnetic poles of the first layer of magnetic ring, the S magnetic pole in the jth pair of magnetic poles of the third layer of magnetic ring is staggered by a preset angle towards the first direction relative to the first blank area in the jth pair of the second layer of magnetic poles, j is 1, And m is selected. The same arrangement rule of the magnetic rings in the same layer x is similar to the above case, and detailed description is omitted here.

It should be noted that, as shown in fig. 7-13, the x hall sensing assemblies 20 are arranged on the same vertical line, that is, the relative positions between each hall sensing assembly 20 and each magnetic ring 10 are kept consistent, the x hall sensing assemblies 20 may be perpendicular to the same radius of the x magnetic ring 10 (in the case of side magnetization mentioned in the following embodiments), or the x hall sensing assemblies 20 may be parallel to the same radius of the x magnetic ring 10 (in the case of end magnetization mentioned in the following embodiments).

Specifically, the detecting surface of each layer of magnetic ring 10 may be filled with N magnetic poles and S magnetic poles at intervals, when the driving part drives the moving part to move, each layer of magnetic ring 10 moves along with the driving part, the N magnetic poles and S magnetic poles on each layer of magnetic ring 10 may alternately pass through the corresponding hall detecting elements 20, and each hall detecting element 20 outputs a corresponding sensing signal according to the sensed magnetic pole change. Or, the detecting surface of each layer of magnetic ring 10 may be filled with N magnetic poles and first blank areas at intervals, when the driving part drives the moving part to move, each layer of magnetic ring 10 moves along with the driving part, the N magnetic poles and the first blank areas on each layer of magnetic ring 10 may alternately pass through the corresponding hall detecting elements 20, and each hall detecting element 20 outputs a corresponding sensing signal according to the sensed magnetic pole change. Or, the detecting surface of each layer of magnetic ring 10 may be filled with the S magnetic pole and the second blank area at intervals, when the driving part drives the moving part to move, each layer of magnetic ring 10 moves along with the driving part, the S magnetic pole and the second blank area on each layer of magnetic ring 10 may alternately pass through the corresponding hall detecting elements 20, and each hall detecting element 20 outputs a corresponding sensing signal according to the sensed magnetic pole change. The control unit 30 is connected with the x hall detection assemblies 20, and the control unit 30 judges whether the moving part is stuck according to the x induction signals.

Specifically, taking the example that a plurality of N magnetic poles and a plurality of S magnetic poles are distributed at intervals on the detection surface of each layer of magnetic ring 10 as an example, when the driving part drives the moving part to move, the magnetic ring 10 moves along with the driving part, and the x hall detection assemblies 20 are fixed, the N magnetic poles and the blank area on the detection surface of each layer of magnetic ring 10 sequentially pass through the corresponding hall detection assemblies 20, so that the x hall detection assemblies 20 sense the change of the magnetic poles of the magnetic ring 10 to sequentially output x sensing signals such as high and low level pulse sequences, when the driving part moves according to a preset speed, the x sensing signals output by the x hall detection assemblies 20 will conform to a corresponding rule, and when the moving part stops moving, the magnetic poles sensed by the x hall detection assemblies 20 will remain unchanged, and the x sensing signals will not conform to a corresponding rule, so that the control unit 30 determines the state of the moving part according to the x sensing signals, such as whether the moving part is stuck.

It should be understood that the case of multiple S magnetic poles or multiple N magnetic poles spaced on the detection surface of the magnetic ring 10 is similar to the case of multiple N magnetic poles and multiple S magnetic poles spaced and described above, and will not be described herein again.

According to one embodiment of the invention, the driving part may comprise a driving motor, and the x-layer magnetic ring 10 is fixed on a rotating component of the driving motor. That is, when the driving motor drives the moving part to move, the x-layer magnetic ring 10 rotates along with the rotating component of the driving motor.

According to an embodiment of the present invention, the driving motor may be a stepping motor, the stepping motor may be controlled in an open loop manner, and the control unit 30 may detect whether the stepping motor is locked or not through the structure of the multi-layer magnetic ring 10 and the multi-hall detecting assembly 20, so as to prevent the stepping motor from being continuously in an interference state, and from adversely affecting the operation of the motor itself and the product.

According to one embodiment of the invention, the rotating component of the drive motor is a transmission gear or a drive shaft. That is, the x-layer magnetic rings 10 may be fixed to a transmission gear or a driving shaft of a driving motor, so that the x-layer magnetic rings 10 may rotate along with the driving motor when the driving motor rotates.

It should be noted that, when the driving motor drives the moving part, if a plurality of transmission gears are arranged between the driving motor and the moving part, the x-layer magnetic ring 10 is preferably fixed on the transmission gear near the moving part.

Specifically, as shown in fig. 2 to 13, fixing holes 101 are formed in the x-layer magnetic rings 10, for example, the fixing holes 101 are formed in the centers of the x-layer magnetic rings 10, and the x-layer magnetic rings 10 are riveted with a driving component, for example, a rotating component of a driving motor, through the fixing holes 101, so as to rotate synchronously with the driving component. That is, the x-layer magnetic ring 10 may be riveted with a transmission gear or a driving shaft of a driving motor through the fixing hole 101. In addition, the x-layer magnetic ring 10 can also be directly made into a component with the transmission gear.

Also, according to an embodiment of the present invention, x hall sensing assemblies 20 may be fixed to the air conditioner body. From this, the integral erection is convenient, avoids bringing the line problem of walking.

Further, according to an embodiment of the present invention, as shown in fig. 2 to 7, the detection surface of the magnetic ring 10 is a side surface of the magnetic ring or an end surface of the magnetic ring. That is, the magnetic ring 10 has two forms of side surface magnetization and end surface magnetization, taking the example that the magnetic ring 10 is filled with the N magnetic pole and the S magnetic pole at intervals, as shown in fig. 2a, 2b and 2c, the side surface magnetization can fill the N magnetic pole and the S magnetic pole at intervals around the magnetic ring 10, wherein fig. 2a is a front view, and fig. 2b and 2c are side views; as shown in fig. 3, the end surface is magnetized, and the N magnetic pole and the S magnetic pole can be filled in the end surface of the magnetic ring 10 at intervals. In the embodiment of the invention, the end face can be preferably magnetized, so that the magnetic ring 10 can be made thinner, the material is saved, and the cost is reduced.

More specifically, the hall sensing assembly 20, such as a hall element, may be packaged in both a chip package and a plug-in package, and the hall sensing assembly 20 is fixed on a PCB (Printed Circuit Board) Board and fixed on the air conditioner body through the PCB Board, and is located at one side of the x-layer magnetic ring 10, close to the magnetic ring but not in contact, and within a magnetic field sensing range.

As shown in fig. 9, the patch type hall detection component 20 can be matched with the magnetic ring 10 with magnetized end surface; as shown in fig. 8a and 8b, a plug-in type hall-effect detection assembly 20 can be fitted with a side-magnetized magnetic ring 10. In the embodiment of the present invention, the patch type hall sensing component 20 may be preferred, and the patch type positioning is more accurate in the manufacturing process, so that the sensing error may be reduced, and the adoption of the patch type may facilitate the automatic assembly and increase the assembly speed.

It should be noted that the embodiment that the magnetic ring 10 is filled with the N magnetic poles and the blank regions at intervals is substantially the same as the embodiment that the magnetic ring 10 is filled with the N magnetic poles and the S magnetic poles at intervals, except that as shown in fig. 4a, 4b and 4c and 10a and 10b, the side surface is magnetized to fill the N magnetic poles and the blank regions at intervals around the magnetic ring 10, as shown in fig. 5 and 11, and the end surface is magnetized to fill the N magnetic poles and the blank regions at intervals around the end surface of the magnetic ring 10.

In addition, the embodiment in which the magnetic ring 10 is filled with the S magnetic poles and the blank regions at intervals is also substantially the same as the embodiment in which the magnetic ring 10 is filled with the N magnetic poles and the S magnetic poles at intervals, except that, as shown in fig. 6a, 6b and 6c and 12a and 12b, the side surface is magnetized to fill the magnetic ring 10 with the S magnetic poles and the blank regions at intervals, and as shown in fig. 7 and 13, the end surface is magnetized to fill the magnetic ring 10 with the S magnetic poles and the blank regions at intervals.

According to one embodiment of the present invention, as shown in fig. 2-13, the x layers of magnetic rings 10 may be arranged in a concentric manner. Specifically, as shown in fig. 2a-2c, 4a-4c, 6a-6c, 8a-8b, 10a-10b and 12a-12b, the x-layer magnetic ring 10 is composed of x magnetic layers with the same center and radius, and the same magnetic poles on the periphery of the x magnetic ring 10 are sequentially staggered by a preset angle; as shown in fig. 3, 5, 7, 9, 11 and 13, the x layers of magnetic rings 10 are composed of x magnetic layers with the same center and different radii, the radius of the inner ring of magnetic ring is smaller than that of the outer ring of magnetic ring, and the same magnetic poles on the end faces of the x magnetic rings 10 are sequentially staggered by a preset angle.

In addition, according to some embodiments of the present invention, the x layers of magnetic rings 10 may be assembled by x separate magnetic rings 10, as shown in fig. 2 b. Alternatively, the x layers of magnetic rings 10 may be integrally formed, and the same magnetic poles are sequentially staggered by a predetermined angle in the x layers, for example, the upper and lower layers of magnetic components are taken as an example, and the lower layer of the same magnetic pole is staggered by a predetermined angle with respect to the upper layer, as shown in fig. 2 c.

Further, according to an embodiment of the present invention, as shown in fig. 2 to 13, the plurality of N magnetic poles and/or the plurality of S magnetic poles on each layer of the magnetic ring 10 are arranged in an equal width manner. That is, when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring 10, the width of each N magnetic pole is the same and the width of each S magnetic pole is the same; or when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring 10 at intervals, the width of each N magnetic pole is the same; or when a plurality of S magnetic poles are distributed at intervals on the detection surface of the magnetic ring 10, the width of each S magnetic pole is the same.

It should be noted that the width of the N magnetic pole and/or the S magnetic pole is as narrow as possible under the premise of ensuring the magnetic field strength, for example, 1 to 2mm can be achieved, and the magnetic field strength is required to be determined according to the hall sensing parameters of the hall sensing assembly 20.

Specifically, when the magnetic ring 10 is filled with the N-pole and the first blank region (or the S-pole and the second blank region) at intervals, the magnetic region angle of the N-pole or the S-pole may be set according to a formula λ ═ pi + arcsin (X/a) + arcsin (Y/a))/p, where λ is the magnetic region angle of the N-pole or the S-pole, a is the maximum magnetic density of the N-pole or the S-pole, X is an operating point of the hall sensing assembly, Y is a release point of the hall sensing assembly, D is the length of the magnetic ring 10 along the moving direction of the moving part, and p is the number of the N-pole or the S-pole, i.e., the logarithm of the N-pole and the first blank region or the logarithm of the S-pole and the second blank region, and accordingly, the region angle D2 of the blank region may be set according to a formula θ ═ 2 pi/p- λ. In addition, according to a specific example of the present invention, the angle of the magnetic region, i.e., the N-pole magnetic region, and the angle of the first blank region may be approximately equal, or the angle of the magnetic region, i.e., the S-pole magnetic region, and the angle of the second blank region may be approximately equal.

In addition, it should be understood that the number of N and/or S poles is related to the size of the magnetic ring 10, and the larger the size of the magnetic ring 10, the greater the total number of poles, and the higher the detection sensitivity.

According to one embodiment of the invention, the x hall sensing assemblies 20 may match the magnetic arrangement of the magnetic poles on the magnetic ring 10. For example, when the detection surface of the magnetic ring 10 is filled with N magnetic poles and S magnetic poles at intervals, the x hall detection assemblies 20 may be bipolar hall elements, and the bipolar hall elements may respectively sense the N magnetic poles and the S magnetic poles to generate different signals when sensing different magnetic poles; for another example, when the detecting surface of the magnetic ring 10 is filled with N magnetic poles and first blank regions at intervals or filled with S magnetic poles and second blank regions at intervals, the x hall detecting assemblies 20 may be unipolar hall elements, and the unipolar hall elements may sense the matched magnetic poles to generate sensing signals when sensing the matched magnetic poles, that is, the selection type of the unipolar hall elements is matched with the unipolar magnetic ring, if the unipolar magnetic ring is N-pole type, the unipolar hall is also selected as N-pole type, and if the unipolar magnetic ring is S-pole type, the unipolar hall is also selected as S-pole type.

According to one embodiment of the present invention, each hall sensing assembly 20 may generate a corresponding sensing signal according to the sensed magnetic pole type.

For example, when a plurality of N poles and a plurality of S poles are distributed on each magnetic ring 10, the corresponding hall sensing assembly 20 generates a first level when it faces the N poles, and generates a second level when it faces the S poles. It should be noted that the first level may be a high level and the second level may be a low level, or the first level may be a low level and the second level may be a high level, and the level state may be specifically determined according to the type of the hall sensing assembly 20.

Thus, when the N magnetic pole and the S magnetic pole on each magnetic ring 10 alternately pass through the corresponding hall sensing assemblies 20, the corresponding hall sensing assemblies 20 will output stable high and low level pulse sequences, and thus, the periods of the x high and low level pulse sequences output by the x hall sensing assemblies 20 are fixed and the same, and the duty ratio is 50%.

For another example, when a plurality of N magnetic poles are spaced apart on each magnetic ring 10, the corresponding hall sensing assembly 20 generates a first level when facing the N magnetic poles, and generates a second level when facing the first blank area. Thus, when the N magnetic poles and the first blank areas on each magnetic ring 10 alternately pass through the corresponding hall sensing assemblies 20, the corresponding hall sensing assemblies 20 will output stable high and low level pulse sequences, and thus, the periods of the x high and low level pulse sequences output by the x hall sensing assemblies 20 are fixed and the same, and the duty ratio is 50%.

For another example, when a plurality of S magnetic poles are spaced apart on each magnetic ring 10, the corresponding hall sensing assembly 20 generates a first level when facing the S magnetic poles, and generates a second level when facing the second blank area. Thus, when the S magnetic pole and the second blank area on each magnetic ring 10 alternately pass through the corresponding hall sensing assemblies 20, the corresponding hall sensing assemblies 20 will output stable high-low level pulse sequences, and thus, the periods of the x high-low level pulse sequences output by the x hall sensing assemblies 20 are fixed and the same, and the duty ratio is 50%.

Therefore, the N magnetic pole and/or the S magnetic pole on the magnetic ring 10 can be very dense (the width of the magnetic pole can be 1-2mm), the sensitivity is high, and the frequency of feedback pulse can be improved, so that the detection time is shortened, and the detection sensitivity is improved. And based on the Hall effect, the method is stable and reliable, has low interference, stable pulse waveform and rapid high and low level jump.

According to an embodiment of the present invention, the preset angles include a first preset angle, a second preset angle and a third preset angle, when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of each layer of magnetic ring 10, the x layers of magnetic rings 10 are staggered by the third preset angle according to the sum of the numbers of the N magnetic poles and the S magnetic poles; when a plurality of N magnetic poles are distributed on each layer of magnetic ring 10, the x layers of magnetic rings 10 are staggered by a first preset angle according to the sum of the number of the N magnetic poles and the first blank area; when a plurality of S magnetic poles are distributed on each layer of magnetic ring 10, the x layers of magnetic rings 10 are staggered by a second preset angle according to the sum of the number of the S magnetic poles and the second blank area.

That is to say, the x layers of magnetic rings 10 may be distributed in a staggered manner, and the number of the magnetic poles of the x layers of magnetic rings 10 that match the magnetic rings 10 may be staggered by a preset angle, so that the x paths of sensing signals respectively output by the x hall detection assemblies 20 are sequentially staggered by a preset phase angle, thereby improving the detection sensitivity by times.

As shown in fig. 2 to 13, taking two layers of magnetic rings 10 as an example, the upper layer magnetic ring 10A and the lower layer magnetic ring 10B are arranged in the same manner, and the magnetic poles of the same magnetism of the upper layer magnetic ring 10A and the lower layer magnetic ring 10B are staggered by a preset angle, that is, as shown in fig. 2B to 2c, fig. 3, fig. 8a to 8B, and fig. 9, each N magnetic pole of the lower layer (or inner layer) magnetic ring 10B is staggered by a preset angle with respect to the corresponding N magnetic pole of the upper layer (or outer layer) magnetic ring 10A, and each S magnetic pole of the lower layer (or inner layer) magnetic ring 10B is staggered by a preset angle with respect to the corresponding S magnetic pole of the upper layer magnetic ring 10A. As shown in fig. 4B-4c, fig. 5, fig. 10A-10B, and fig. 11, each N magnetic pole of the lower (or outer) magnetic ring 10B is staggered by a predetermined angle with respect to the corresponding N magnetic pole of the upper magnetic ring 10A, and each blank area of the lower (or inner) magnetic ring 10B is staggered by a predetermined angle with respect to the corresponding blank area of the upper (or outer) magnetic ring 10A. As shown in fig. 6B to 6c, fig. 7 and fig. 12a to 12B as fig. 13, each S magnetic pole of the lower (or inner) layer magnetic ring 10B is staggered by a predetermined angle with respect to the corresponding S magnetic pole of the upper (or outer) layer magnetic ring 10A, and each blank region of the lower (or inner) layer magnetic ring 10B is staggered by a predetermined angle with respect to the corresponding blank region of the upper (or outer) layer magnetic ring 10A.

Taking the x-layer magnetic ring 10 moving clockwise as shown by the arrow in the figure as an example, the induction signal output by the hall detection assembly 20B corresponding to the lower (or inner) layer magnetic ring 10B lags behind the preset phase angle of the hall detection assembly 20A corresponding to the upper (or outer) layer magnetic ring 10B.

Specifically, the first preset angle or the second preset angle, or the third preset angle may be determined according to the following formula:

d＝360°/s/x

wherein d is a first preset angle, a second preset angle, or a third preset angle, x is the number of layers of the magnetic rings, and S is the sum of the number of N magnetic poles and the number of S magnetic poles when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of each layer of the magnetic rings, or is the sum of the number of N magnetic poles and the number of blank areas when a plurality of N magnetic poles are distributed on the detection surface of each layer of the magnetic rings, or is the sum of the number of S magnetic poles and the number of blank areas when a plurality of S magnetic poles are distributed on the detection surface of each layer of the magnetic rings.

In other words, S is the total number of magnetic poles, and when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on each layer of magnetic ring, the total number of magnetic poles means that the sum of the numbers of the N magnetic poles and the S magnetic poles is staggered by a preset angle; when a plurality of N magnetic poles are distributed on each layer of magnetic ring at intervals, the total number of the magnetic poles refers to the sum of the number of the N magnetic poles and the blank area; when a plurality of S magnetic poles are distributed on each layer of magnetic ring at intervals, the total number of the magnetic poles refers to the sum of the number of the S magnetic poles and the number of the blank areas.

Specifically, taking the number x of the magnetic rings 10 being 2 and the total number s of the magnetic poles of each magnetic ring 10 being 24 as an example, the preset angle calculated according to the formula d being 360 °/s/x may result in d being 7.5 °, that is, two adjacent hall sensing assemblies 20 are staggered by 7.5 °. More specifically, as shown in fig. 2 to 13, the magnetic poles of the lower (or inner) magnetic ring 10B are staggered by 7.5 ° from the corresponding magnetic poles of the upper (or outer) magnetic ring 10A, and accordingly, when the x-layer magnetic ring 10 rotates clockwise, the induction signal output by the hall sensing element 20B corresponding to the lower (or inner) magnetic ring 10B lags behind the induction signal output by the hall sensing element 20A corresponding to the upper (or outer) magnetic ring 10A by 90 °.

According to an embodiment of the present invention, the hall sensing element 20 generates a first level when facing the N pole and a second level when facing the S pole, or the hall sensing element 20 generates a first level when facing the N pole and a second level when facing the first clear area, or the hall sensing element 20 generates a first level when facing the S pole and a second level when facing the second clear area, and the x-way sensing signal can configure y level state combinations, y > x. According to an embodiment of the present invention, the number y of the level state combinations is x times the number of the level states of each sensing signal, that is, y is 2 x.

As shown in fig. 14, the control unit 30 includes: a timer 301 and a control chip 302.

Wherein the timer 301 is configured to start timing when any one of the y level state combinations occurs, so as to time the duration of each of the y level state combinations; the control chip 302 is connected with the timer 301, the control chip 302 is further connected with the x hall detection assemblies 20, and the control chip 302 judges that the moving part is blocked when the duration of any level state combination is greater than a preset time threshold.

That is, the widths of the x layers of magnetic rings 10 matching the N magnetic poles or the S magnetic poles of the magnetic rings 10 are staggered by a predetermined angle, so that the x paths of sensing signals respectively output by the x hall sensing assemblies 20 are sequentially staggered by a predetermined phase angle, and thus different level state combinations can be formed at the same time. The control chip 302 can determine whether the moving component is jammed by detecting whether the duration time of each level state combination exceeds a preset time threshold. Therefore, the detection time can be further shortened in multiples by adopting the multilayer magnetic rings and the magnetic rings in staggered distribution and matching with the Hall detection assemblies with the same number, and the effect of reducing the detection time in multiples can be achieved.

Specifically, taking the example that the magnetic rings 10 are filled with N magnetic poles and S magnetic poles at intervals as an example, when the moving part moves, the x layers of magnetic rings 10 move synchronously with the moving part, the x hall sensing assemblies 20 are fixed, and the N magnetic poles and S magnetic poles on each layer of magnetic rings 10 alternately pass through the corresponding hall sensing assemblies 20, so that the x hall sensing assemblies 20 respectively generate high and low level pulse sequences with a duty ratio of 50%.

The corresponding magnetic poles on the x-layer magnetic ring 10 are sequentially staggered by a preset angle according to the formula d as 360 °/s/x, and accordingly, waveforms with a phase angle of 180 °/x can be obtained by two adjacent hall detection assemblies 20. Therefore, one period in each waveform can be equally divided into 2x level state combinations, and the duration tn of each level state combination is 1/x of the duration of the high level state or the low level state of any signal, namely tn is 1/r/p/2/x or tn is 1/r/S/x, wherein r is the rotating speed of x layers of magnetic rings 10, p is the number of the N magnetic poles or the S magnetic poles, S is the total number of the magnetic poles, and x is the number of layers of the magnetic rings 10, when the magnetic rings 10 are arranged on a transmission gear, the rotating speed of the magnetic rings 10 can be calculated according to the rotating speed of a driving motor and a gear transmission ratio, and when the driving motor is a stepping motor and the magnetic rings 10 are arranged on a driving shaft, the rotating speed of the magnetic rings 10 can be calculated according to a step angle and a driving pulse period. Therefore, the detection time can be further shortened by times by adopting the staggered distribution of the plurality of layers of magnetic rings, for example, the detection time can be reduced by times by using more or less layers of magnetic rings.

As shown in fig. 15, taking x as 2 and d as 7.5 ° as an example, two waveforms each delayed by 90 ° in phase angle may be output by the two hall sensing elements 20, that is, the output waveform of the hall sensing element 20B is delayed by 90 ° with respect to the output waveform of the hall sensing element 20A. Thus, one period of each waveform can be equally divided into four level state combinations, namely 10, 11, 01 and 00, wherein 1 represents high level and 0 represents low level, and the duration tn of each level state combination is 1/2 which is the duration of the high level or low level state of any signal, and is 1/r/p/2/2, so that the detection sensitivity is improved by two times.

When the driving motor is locked and stops rotating, that is, the moving component is stuck, the magnetic pole corresponding to each hall sensing assembly 20 does not change any more, so the output level of each hall sensing assembly 20 will be continuously at a high level or continuously at a low level. As shown in fig. 16, the moving component is stuck at time t1 and recovers at time t2, tn is the duration of each level state combination when no sticking occurs, td is a preset time threshold, when sticking occurs, the two waveforms maintain the current level state, and when the duration is greater than td, it is determined that the motor is locked, and then the moving component is stuck. The preset time threshold td is k × tn, and the value range of k is 1-4, preferably 1.5.

As described above, the detection process for detecting whether the moving part is stuck according to the embodiment of the present invention is as follows:

when the driving part drives the moving part to move, the control chip 302 starts a detection function and controls the timer 301 to start timing, the control chip 302 can collect sensing signals output by the x hall detection assemblies 20, when high and low level jump occurs to any path of sensing signal, the control timer 301 is cleared, the control chip 302 can judge whether the timing value of the timer 301 is greater than a preset time threshold td, if the timing value of the timer 301 is greater than the preset time threshold td, the driving motor is judged to be locked, so that the moving part is judged to be blocked, and the control chip 302 outputs a locked-rotor protection signal to execute motor protection action, for example, the driving motor is controlled to stop rotating or reversely rotate; if the timing value of the timer 301 is less than or equal to the preset time threshold td, it is determined that the motor is not locked, and further it is determined that the moving component is not jammed, and the control chip 302 can control the driving motor to continue to rotate forward.

It should be understood that the embodiment in which each layer of magnetic ring 10 is filled with N magnetic poles and first blank regions at intervals and each layer of magnetic ring 10 is filled with S magnetic poles and second blank regions at intervals is substantially the same as the aforementioned embodiment in which each layer of magnetic ring 10 is filled with N magnetic poles and S magnetic poles at intervals, except that when each layer of magnetic ring 10 is filled with N magnetic poles and first blank regions at intervals, the N magnetic poles and first blank regions alternately pass through the corresponding hall sensing assemblies 20, and when each layer of magnetic ring 10 is filled with S magnetic poles and second blank regions at intervals, the S magnetic poles and second blank regions alternately pass through the corresponding hall sensing assemblies 20, and detailed description thereof is omitted.

From this, whether can effectively detect the moving part meet the barrier to shorten check-out time, can obtain the retardant information of door plant fast, accomplish slight touching can detect retardant effect, thereby in time take corresponding tactics to adjust the motion of door plant, avoid causing the damage to the mechanism, improved user and used the experience satisfaction simultaneously.

In addition, according to an embodiment of the present invention, as shown in fig. 17, the power supply terminals of the x hall sensing elements 20 are all connected to a preset power supply VCC, for example, +5V, through a first resistor R1, the ground terminals of the x hall sensing elements 20 are grounded, and a first capacitor C1 is connected between the power supply terminals and the ground terminals of the x hall sensing elements 20 in parallel, wherein the sensing terminal of each hall sensing element 20 senses the magnetic pole change of the corresponding magnetic ring 10, and the output terminal of each hall sensing element 20 outputs a corresponding sensing signal.

Further, as shown in fig. 17, the detection control device for the moving part in the air conditioner further includes x output circuits 40, the x output circuits 40 are connected to the output ends of the x hall sensing assemblies 20 in a one-to-one correspondence, and each output circuit 40 includes: the second resistor R2 and the third resistor R3, the second resistor R2 and the third resistor R3 are connected in series, one end of the second resistor R2 and one end of the third resistor R3 which are connected in series are connected with a preset power VCC, the other end of the second resistor R2 and the other end of the third resistor R3 which are connected in series are connected with the control unit 30, namely the control chip 302, a node is arranged between the second resistor R2 and the third resistor R3 which are connected in series, and the node is connected with the output end of the corresponding Hall detection assembly 20.

The second resistor R2 is a pull-up resistor, and the third resistor R3 is a current-limiting resistor.

That is, each hall sensing element 20 can supply 5V power, so that each hall sensing element 20 can output a high-low level pulse sequence with an amplitude of 5V, each high-low level pulse sequence is provided to the control unit 30 through a corresponding output circuit, the control unit 30 can time the duration of the level state combination of the x high-low level pulse sequences, and determine whether the moving component is jammed by comparing the time with the preset time threshold.

Further, according to an embodiment of the present invention, as shown in fig. 18 and 19, the moving part may be a door panel 300 of an air conditioner, the door panel 300 being a slidable door panel; the driving part 100, for example, a driving motor, may drive the door panel 300. Specifically, the cabinet of the air conditioner is provided with a slidable door panel 300, when the air conditioner is started, the control device of the air conditioner can drive the door panel 300 to be opened through the motor 100, and when the air conditioner is closed, the control device of the air conditioner can drive the door panel 300 to be closed through the motor 100, so that the attractiveness of the product is improved. When the number of the door panel 300 is one, the door panel 300 can be opened to one side; when the door panel 300 is two, the door panel 300 can be opened to both sides.

The air conditioner of the embodiment of the present invention detects whether the driving part 100 is locked or not to determine whether the door panel 300 is stuck, for example, meets an obstacle. Specifically, for example, when the door panel 300 moves in the door opening direction or the door closing direction, the driving component 100, such as the driving motor, drives the magnetic rings 10 to rotate synchronously, and the N magnetic poles and the S magnetic poles on each magnetic ring 10 pass through the corresponding hall detection components alternately, so that the x hall detection components output stable high and low level pulse sequences respectively, and the duty ratio is 50%.

When the door panel 300 is stuck, for example, a foreign object is stuck on the door panel 300 or a finger is accidentally extended in the door panel, the driving part 100 stops moving, the door panel 300 stops moving, the magnetic pole corresponding to each hall detection assembly does not change any more, and the output level of each hall detection assembly is continuously at a high level or continuously at a low level. The control unit 30 may determine whether the driving member 100 is locked by detecting whether the duration of each level state combination exceeds a preset time threshold, and further determine whether the door panel 300 is stuck, for example, meets an obstacle.

From this, whether can effectively detect door plant 300 and meet the barrier to shorten check-out time, can obtain the jamming information of door plant fast, do slight touching can detect the effect of jamming, thereby in time take corresponding tactics to adjust the motion of door plant, avoid causing the damage to the mechanism, improved user and used the experience satisfaction simultaneously. And cooperate through multilayer magnetic ring and many hall detecting element and can shorten check-out time, promote detectivity, prevent to cause the injury for example to clip finger to the user, promote user's experience.

In summary, according to the detection control device for the moving part in the air conditioner provided by the present invention, the magnetic assembly is fixed on the driving part for driving the moving part, the magnetic assembly includes z layers of magnetic rings, a plurality of N magnetic poles and/or a plurality of S magnetic poles are distributed on the detection surface of each layer of magnetic rings, x hall detection assemblies are fixedly disposed near the detection surface of the x layers of magnetic rings, each hall detection assembly induces the magnetic pole change of the corresponding magnetic ring to generate a corresponding induction signal when the driving part drives the moving part to move, the corresponding magnetic poles of the x layers of magnetic rings are sequentially staggered by a preset angle, and the connecting line of the x hall detection assemblies is located in the plane where the axis of the x layers of magnetic rings is located, so that the x induction signals are sequentially staggered by a preset phase angle, the control unit determines whether the moving part is jammed according to the x lines of induction signals generated by the x hall detection assemblies, thereby effectively determining whether the moving part is jammed, so as to in time take corresponding measure to adjust drive assembly's motion, avoid causing the damage to drive assembly who drives motion part to cooperate through multilayer magnetic ring and many hall determine module and can shorten check-out time, promote detectivity. In addition, the device occupies less space, has low cost, is convenient to install, has long service life, and is stable and reliable. In another aspect, the present invention provides an air conditioner, which includes the detection control device for the moving parts in the air conditioner.

The embodiment of the invention also provides a detection control method of the moving part in the air conditioner.

Fig. 20 is a flowchart of a detection control method of a moving part in an air conditioner according to an embodiment of the present invention. The air conditioner comprises a magnetic assembly and x Hall detection assemblies, wherein the magnetic assembly is fixed on a driving part of a driving moving part, the magnetic assembly comprises z layers of magnetic rings, a plurality of N magnetic poles and/or a plurality of S magnetic poles are distributed on the detection surface of each layer of magnetic ring, the Hall detection assemblies are matched with the magnetic poles on the detection surface of the corresponding magnetic ring in a magnetic way, the x Hall detection assemblies are arranged close to the detection surface of the corresponding magnetic ring, the corresponding magnetic poles of the x layers of magnetic rings are sequentially staggered by a preset angle, the connecting line of the x Hall detection assemblies is positioned in the plane where the axis of the x layers of magnetic rings is positioned, so that x induction signals are sequentially staggered by a preset phase angle, z is an integer larger than 1, and x is an integer larger than 1. As shown in fig. 20, the method comprises the steps of:

s1: when the driving part drives the moving part to move, each Hall detection assembly induces the magnetic pole change of the corresponding magnetic ring to generate a corresponding induction signal;

s2: and judging whether the moving part is clamped or not according to the x-path sensing signals generated by the x Hall detection assemblies.

According to an embodiment of the present invention, when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on a detection surface of a magnetic ring, the N magnetic poles and the S magnetic poles are arranged at intervals one by one, and a hall detection assembly generates a first level when facing the N magnetic poles and a second level when facing the S magnetic poles, or, when a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring, a first blank region is arranged between adjacent N magnetic poles, and a hall detection assembly generates a first level when facing the N magnetic poles and a second level when facing the first blank region, or, when a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring, a second blank region is arranged between adjacent S magnetic poles, and a hall detection assembly generates a first level when facing the S magnetic poles and a second level when facing the second blank region, x-way sensing signals construct y level state combinations, y > x, judging whether the moving part is stuck according to the x induction signals comprises the following steps: starting timing when any one of the y level state combinations occurs to time the duration of each of the y level state combinations; and judging that the moving part is blocked when the duration of any type of level state combination is greater than a preset time threshold.

According to an embodiment of the present invention, the number y of level state combinations is x times the number of level states of each of the sensing signals.

In summary, according to the detection control method for the moving part in the air conditioner provided by the embodiment of the present invention, the magnetic ring assembly is fixed on the driving part for driving the moving part, the magnetic assembly includes z layers of magnetic rings, each layer of magnetic rings is distributed with a plurality of N magnetic poles and/or a plurality of S magnetic poles, x hall detecting assemblies are fixedly disposed near the detecting surface of the x layers of magnetic rings, each hall detecting assembly induces the magnetic pole change of the corresponding magnetic ring to generate a corresponding sensing signal when the driving part drives the moving part to move, the corresponding magnetic poles of the x layers of magnetic rings are sequentially staggered by a preset angle, and the connecting line of the x hall detecting assemblies is located in the plane where the axis of the x layers of magnetic rings is located, so that the x sensing signals are sequentially staggered by the preset phase angle, and further, whether the moving part is jammed or not is determined according to the x lines of sensing signals generated by the x hall detecting assemblies, thereby effectively determining whether the moving part is jammed, so as to in time take corresponding measure to adjust drive assembly's motion, avoid causing the damage to drive assembly who drives motion part to cooperate through multilayer magnetic ring and many hall determine module and can shorten check-out time, promote detectivity. In addition, the method has the advantages of small occupied space, low cost, convenience in installation, long service life, stability and reliability.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A detection control apparatus for a moving part in an air conditioner, comprising:

the magnetic assembly is fixed on a driving part for driving the moving part and comprises z layers of magnetic rings, a plurality of N magnetic poles and/or a plurality of S magnetic poles are/is distributed on the detection surface of each layer of magnetic ring, wherein z is an integer larger than 1;

the Hall detection assemblies are arranged close to the detection surfaces corresponding to the magnetic rings, the Hall detection assemblies are arranged on the same vertical line, the relative positions of the Hall detection assemblies and the corresponding magnetic rings are kept consistent, when the driving part drives the moving part to move, each Hall detection assembly induces the magnetic pole change of the corresponding magnetic ring to generate a corresponding induction signal, the corresponding magnetic poles of the magnetic rings on the x layers are sequentially staggered by a preset angle, and the connecting lines of the Hall detection assemblies are positioned in the plane where the axes of the magnetic rings on the x layers are positioned, so that the induction signals of the x layers are sequentially staggered by the preset phase angle, and x is an integer greater than 1;

the control unit is connected with the x Hall detection assemblies and judges whether the moving part is clamped or not according to the x paths of induction signals generated by the x Hall detection assemblies;

when the plurality of N magnetic poles are distributed on the detection surface of the magnetic ring, a first blank area is arranged between the adjacent N magnetic poles;

when the plurality of S magnetic poles are distributed on the detection surface of the magnetic ring, a second blank area is arranged between the adjacent S magnetic poles;

wherein the magnetic region angle of the N-pole or the S-pole is obtained according to the following formula:

λ＝(π+arcsin(X/A)+arcsin(Y/A))/p，

wherein λ is a magnetic area angle of the N magnetic pole or the S magnetic pole, a is a maximum magnetic flux density of the N magnetic pole or the S magnetic pole, X is an action point of the hall detection assembly, Y is a release point of the hall detection assembly, and p is the number of the N magnetic pole or the S magnetic pole;

obtaining the area angle of the first blank area or the second blank area according to the following formula:

θ＝2π/p–λ，

wherein θ is a width of a region angle of the first blank region or the second blank region, λ is a magnetic region angle of the N magnetic pole or the S magnetic pole, and p is the number of the N magnetic pole or the S magnetic pole.

2. The apparatus as claimed in claim 1, wherein the driving unit comprises a driving motor, and x layers of the magnetic rings are fixed to a rotating assembly of the driving motor.

3. The apparatus for detecting and controlling a moving part of an air conditioner according to claim 2, wherein the rotating member of the driving motor is a transmission gear or a driving shaft.

4. The apparatus as claimed in claim 1, wherein fixing holes are formed on the x layers of magnetic rings, and the x layers of magnetic rings are riveted with the driving member through the fixing holes.

5. The detecting and controlling device for the moving parts in the air conditioner as claimed in claim 1, wherein the detecting surface of the magnetic ring is a side surface of the magnetic ring or an end surface of the magnetic ring.

6. The apparatus for controlling detection of a moving part in an air conditioner according to claim 1,

when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring, the width of each N magnetic pole is the same, and the width of each S magnetic pole is the same; or

When a plurality of N magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the width of each N magnetic pole is the same; or

When a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring at intervals, the width of each S magnetic pole is the same.

7. The apparatus for controlling detection of a moving part in an air conditioner according to claim 1, wherein,

when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring, the N magnetic poles and the S magnetic poles are arranged at intervals one by one.

8. The apparatus of claim 7, wherein the preset angle comprises a first preset angle, a second preset angle and a third preset angle,

when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of each layer of magnetic ring, the magnetic rings on the x layers are staggered by a third preset angle according to the sum of the number of the N magnetic poles and the number of the S magnetic poles;

when the plurality of N magnetic poles are distributed on the detection surface of each layer of magnetic ring, the magnetic rings on the x layers are staggered by a first preset angle according to the sum of the number of the N magnetic poles and the first blank area;

when the plurality of S magnetic poles are distributed on the detection surface of each layer of magnetic ring at intervals, the magnetic rings on the x layers are staggered by a second preset angle according to the sum of the number of the S magnetic poles and the second blank area.

9. The apparatus of claim 8, wherein the first preset angle or the second preset angle, or the third preset angle is determined according to the following formula:

d＝360°/s/x

10. The apparatus for controlling detection of a moving part in an air conditioner according to claim 7,

when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on each layer of magnetic ring, the corresponding Hall detection assembly generates a first level when facing the N magnetic poles and generates a second level when facing the S magnetic poles;

when the plurality of N magnetic poles are distributed on each layer of magnetic ring at intervals, the corresponding Hall detection assembly generates a first level when facing the N magnetic poles, and generates a second level when facing the first blank area;

when the plurality of S magnetic poles are distributed on each layer of magnetic ring at intervals, the corresponding Hall detection assembly generates a first level when facing the S magnetic poles, and generates a second level when facing the second blank area.

11. The apparatus of claim 10, wherein the x-way sensing signal is configured to have y level state combinations, y > x, and the control unit comprises:

a timer for starting timing when any one of the y combinations of level states occurs to time the duration of each of the y combinations of level states;

and the control chip is connected with the timer and used for judging that the moving part is blocked when the duration of any one level state combination is greater than a preset time threshold.

12. The apparatus of claim 11, wherein the number y of the level state combinations is x times the number of the level states of each of the sensing signals.

13. An air conditioner characterized by comprising a detection control device of a moving part in the air conditioner according to any one of claims 1 to 12.

14. A detection control method for a moving part in an air conditioner is characterized in that the air conditioner comprises a magnetic assembly and x Hall detection assemblies, the magnetic assembly is fixed on a driving part for driving the moving part, the magnetic assembly comprises z layers of magnetic rings, a plurality of N magnetic poles and/or a plurality of S magnetic poles are distributed on the detection surface of each layer of magnetic ring, the Hall detection assemblies are matched with the magnetic poles on the detection surface of the corresponding magnetic ring in a magnetic way, the x Hall detection assemblies are arranged close to the detection surface of the corresponding magnetic ring and are arranged on the same vertical line, the relative positions of the Hall detection assemblies and the corresponding magnetic ring are kept consistent, the corresponding magnetic poles of the x layers of magnetic rings are staggered by preset angles in sequence, and the connecting lines of the x Hall detection assemblies are positioned in the plane where the axes of the x layers of magnetic rings are positioned, so that x induction signals are staggered with a preset phase angle in sequence, z is an integer greater than 1, and x is an integer greater than 1, the method comprises the following steps:

when the driving part drives the moving part to move, each Hall detection assembly induces the magnetic pole change of the corresponding magnetic ring to generate a corresponding induction signal;

judging whether the moving part is stuck or not according to x paths of sensing signals generated by the x Hall detection assemblies;

λ＝(π+arcsin(X/A)+arcsin(Y/A))/p，

θ＝2π/p–λ

15. The detection control method of a moving part in an air conditioner according to claim 14, when a plurality of N magnetic poles and a plurality of S magnetic poles are distributed on the detection surface of the magnetic ring, the N magnetic poles and the S magnetic poles are arranged at intervals one by one, the Hall detection component generates a first level when facing the N magnetic pole and generates a second level when facing the S magnetic pole, or the Hall detection component generates a first level when facing the N magnetic pole and generates a second level when facing the first blank area, or the Hall detection component generates a first level when facing the S magnetic pole and generates a second level when facing the second blank area, the x-path sensing signals construct y level state combinations, y > x, and the judging whether the moving part is clamped or not according to the x sensing signals comprises the following steps:

starting timing at the occurrence of any one of the y said level state combinations to time the duration of each of the y said level state combinations;

and judging that the moving part is blocked when the duration of any type of level state combination is greater than a preset time threshold.

16. The method as claimed in claim 15, wherein the number y of the level state combinations is x times the number of the level states of each of the sensing signals.