CN107385770A - A kind of washing machine Anti-collision barrel switch and washing machine - Google Patents

Abstract

The invention discloses a washing machine anti-collision bucket switch and a washing machine, comprising a housing and a contact switch arranged in the housing, a chamber is formed in the housing, a supporting device is arranged at the bottom of the chamber, and a pressure transmission device is arranged above the pressure transmission device. The opening and closing pressure is transmitted for the contact switch; there is also a pressure supply device for the pressure transmission device in the chamber, and the pressure supply device is movable in the housing chamber; when the housing rolls, the pressure supply device provides pressure to the contact through the pressure transmission device. The pressure of the change in size of the switch causes the contact switch to be opened/closed multiple times; the contact switch transmits the instantaneous on-off signal to the washing machine circuit control device. The invention is applicable to various machine types of various washing machine factories, and has common capacity, simple structure, convenient installation, fast response speed, flexibility, long service life and more reliable control effect.

Description

Washing machine anti-collision bucket switch and washing machine

technical field

The invention belongs to the field of washing machine control, and in particular relates to a washing machine anti-collision bucket switch and a washing machine with the switch.

Background technique

The beating control method of the washing machine in the prior art is controlled by a special anti-collision bucket switch. Its principle is that the switch has a swingable bar stretched between the inner bucket and the outer bucket. The clothes are wound together and eccentric. When starting, it will hit the box and shake and shift. At this time, it will hit the swing rod of the switch first, and the swing rod of the switch will send the signal of the disconnection of the switch through the strike rod to the washing machine circuit control. The device makes a shutdown judgment. In order to adapt to different washing machine product models, only the structure and size of the pendulum can be changed. Therefore, there are several or even dozens of different pendulum structures for the pendulum switch of the washing machine anti-collision bucket, which appears in the design of the washing machine. a lot of trouble.

The Chinese patent with the application number CN201610686895.8 discloses a washing machine anti-dehydration shaking switch and its installation method, including a heavy ball that provides gravity to press down, and a contact switch that closes or breaks after being pressed. The heavy ball is limited to more than In the limiting space of the heavy ball, a pressure transmission device is installed under the heavy ball, and the heavy ball shakes in the limiting space of the heavy ball under the influence of external force, so that the heavy ball instantly exerts pressure on the pressure transmitting device or releases the pressure. When the pressure is applied, the pressure conduction The device transmits the pressure to a contact switch which is closed or disconnected after being pressurized, and the contact switch transmits the instantaneous on-off signal to the circuit control device of the washing machine.

However, in the above scheme, when the heavy ball rolls, the pressure transmission device relies on the elasticity of the reed switch to overcome the gravity of the pressure transmission device to release the pressure on the contact switch. The response speed of the pressure transmission device is slow, and as time increases , the elasticity of the reed switch gradually weakens, which may cause the reed switch to fail to overcome the gravity of the pressure transmission device when the heavy ball rolls, resulting in the failure of the contact switch to open.

In view of this, the present invention is proposed.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a switch for the anti-collision bucket of the washing machine. The invention completely changes the control method of the anti-collision bucket of the washing machine in the prior art, and can make the washing machine stop shaking at 360 degrees without dead angle judge. It is suitable for all types of washing machines in various washing machine factories, with common capacity and size, simple structure, convenient installation, fast response, flexible, long service life and more reliable control effect.

The basic concept of the technical solution adopted by the present invention is: a washing machine anti-collision bucket switch, including a housing and a contact switch arranged in the housing, a chamber is formed in the housing, a supporting device is provided at the bottom of the chamber, and a pressure transmission device is provided above , the pressure transmission device transmits the opening and closing pressure for the contact switch; there is also a pressure supply device that provides pressure for the pressure transmission device in the chamber, and the pressure supply device is movably set in the housing chamber; when the housing rolls, the pressure supply device transmits pressure through the The device provides the contact switch with varying pressure, so that the contact switch is opened/closed multiple times; the contact switch transmits the instantaneous on-off signal to the washing machine circuit control device.

Further, the support device is a spring, one end is installed at the bottom of the chamber, and the other end supports the pressure transmission device upwards, the pressure provided by the pressure supply device is greater than the elastic force of the spring, so that the contact switch is closed, the pressure supply device moves, and the spring The elastic force overcomes the pressure of the pressure supply device, so that the contact switch is opened.

Further, the pressure providing device is a heavy ball rolling on the pressure transmission device, and the heavy ball rolls on the pressure transmission device to transmit pressure of varying size to the contact switch.

Further, the housing is provided with a first cavity and a second cavity communicating with each other along the horizontal direction, and the heavy ball is rolled between the top of the pressure transmission device and the top of the first cavity, and the height of the second cavity is The height of the first cavity is lower than that of the first cavity, and the adjacent part of the two cavities constitutes the limiting part of the heavy ball.

Further, the supporting device is arranged in the first chamber, preferably, the supporting device is arranged in the side of the first chamber close to the second chamber.

Further, the lower part of the pressure transmission device includes a support point, the support device is supported on the support point, and the end of the pressure transmission device away from the second chamber extends obliquely upward.

Further, the distance between the end of the pressure transmission device away from the second chamber and the adjacent inner wall of the first chamber is not greater than the radius of the heavy ball.

Further, the pressure transmission device is a lever, the lever includes a hinge point at one end, a fulcrum and a pressure point at the other end, the fulcrum is located above the contact switch that is closed after being pressed, the pressure point is located below the pressure providing device, and the pressure providing device is below Press the pressure point, the fulcrum is pressed down to close the contact switch, and transmit the signal to the washing machine circuit control device.

Further, the contact switch includes a moving elastic piece and a static elastic piece, the moving elastic piece is the pressure transmission device, one end of the moving elastic piece is fixedly connected to the side wall of the cavity, the other end extends below the pressure providing device, and the middle part of the moving elastic piece is provided with a lower Convex contact point, when the pressure providing device moves intermittently to apply pressure, the contact point of the moving elastic piece and the static elastic piece open/close, and the moving elastic piece and the static elastic piece transmit the signal of instantaneous on-off to the washing machine circuit control device.

In addition to the above washing machine anti-collision bucket switch, the present invention also provides a washing machine, which includes the above-mentioned clothes machine anti-collision bucket switch.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

1. The present invention is applicable to various types of washing machines in various washing machine factories, with universal capacity, simple structure and convenient installation.

2. The present invention completely changes the control method of the anti-collision barrel of the washing machine in the prior art, and can make the washing machine 360 degrees without dead angle to judge whether to stop shaking.

3. Compared with the prior art, the present invention has quick response and flexibility to the anti-collision barrel switch of the washing machine.

4. Long service life and more reliable control effect.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Description of drawings

The accompanying drawings, as a part of the present invention, are used to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute improper limitations to the present invention. Apparently, the drawings in the following description are only some embodiments, and those skilled in the art can also obtain other drawings based on these drawings without creative efforts. In the attached picture:

Fig. 1 is a schematic diagram of the closing state of the anti-collision bucket switch structure of the washing machine of the present invention;

Fig. 2 is a schematic diagram of the opening state of the anti-collision bucket switch structure of the washing machine of the present invention;

Fig. 3 is another structural schematic diagram of the fulcrum of the anti-collision bucket switch lever of the washing machine of the present invention;

In the figure: 1, shell; 11, first cavity; 12, second cavity; 2, heavy ball; 3, lever; 31, pressure point; 32, fulcrum; 33, hinge point; 4, spring; 41, supporting point; 5, contact switch; 51, moving shrapnel; 52, static shrapnel.

It should be noted that these drawings and text descriptions are not intended to limit the concept scope of the present invention in any way, but illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

As shown in Figures 1 to 3, the anti-collision bucket switch of the washing machine provided by the present invention includes a box-shaped housing 1 with mounting feet or a snap-in type, and a cavity is formed inside the housing 1, and a supporting device is provided at the bottom of the chamber , a pressure transmission device is arranged above the support device, and the pressure transmission device transmits the opening and closing pressure for the contact switch 5, and a pressure supply device for providing pressure for the pressure transmission device is also provided in the chamber, and the pressure supply device is movably arranged in the cavity of the housing 1 In the room, when the housing 1 shakes, the pressure supply device provides the pressure of varying sizes to the contact switch 5 through the pressure transmission device, so that the contact switch 5 is opened/closed multiple times, and the contact switch 5 transmits the instantaneous on-off signal to the washing machine circuit control device .

Specifically, the casing 1 is formed with a first chamber 11 and a second chamber 12 communicating with each other along the horizontal direction. The pressure supply device is a heavy ball 2 arranged on the pressure transmission device, and the heavy ball 2 is rolled on the pressure transmission device. Between the top of the device and the top of the first cavity 11, the heavy ball 2 rolls on the pressure transmission device, and the pressure of the contact switch 5 is transmitted to the contact switch 5 through the pressure transmission device. The height of the second cavity 12 is lower than that of the first cavity 11. The height of the two chambers adjacent to each other constitutes a limit portion that prevents the heavy ball 2 from entering the second chamber 12. The lower part of the pressure transmission device includes a support point 41, and the support device supports the pressure transmission device at the support point 41. One end of the pressure transmission device Installed on the side wall of the second chamber 12, one end extends to the first chamber 11, the end of the pressure transmission device away from the second chamber extends obliquely upward, and the end of the pressure transmission device away from the second chamber is connected to the adjacent first chamber The distance between the walls is not greater than the radius of the heavy ball 2 , so that the heavy ball 2 is limited to roll between the pressure transmission device and the top of the first cavity 11 , and the pressure point of the heavy ball 2 is close to the supporting point 41 .

Further, the support device is a spring 4, one end of the spring 4 is fixedly installed on the bottom of the chamber, and the other end supports the pressure transmission device upwards, preferably, the spring 4 is arranged on the side of the first chamber close to the second chamber . The pressure provided by the pressure providing device is greater than the elastic force of the spring 4, so that the contact switch 5 is closed, the pressure providing device moves, and the elastic force of the spring 4 overcomes the pressure of the pressure providing device, so that the contact switch 5 is opened.

Specifically, the heavy ball 2 will roll in the limited space of the heavy ball 2 under the influence of external force. When the rolling heavy ball 2 rolls up and down in the limited space, it will instantly exert pressure on the pressure transmission device or release the pressure. When applying pressure, the pressure transmission device will transmit the pressure to the closed contact switch 5 after being pressed, and the contact switch 5 will transmit the connection signal to the circuit control device of the washing machine in an instant. When the pressure is released, the elastic force of the spring 4 overcomes the pressure of the pressure providing device, so that the contact switch 5 is opened, and the contact switch 5 instantly transmits a disconnection signal to the circuit control device of the washing machine.

When the washing machine stops working or runs smoothly, the heavy ball 2 will exert pressure on the pressure transmission device through its own gravity. The pressure transmission device is under the pressure of the heavy ball 2 for a long time. The elasticity gradually weakens, which may cause the shrapnel of the contact switch 5 to fail to overcome the gravity of the pressure transmission device when the heavy ball 2 rolls, resulting in the inability of the contact switch 5 to open. However, by adopting the above technical solution, the above-mentioned problems can be overcome by setting a support device under the pressure transmission device, and when the heavy ball 2 rolls upward, the support device will also give the pressure transmission device an upward force, which can quickly drive the pressure transmission device to move upward. , so that the contact switch 5 is opened instantly, not only the response speed is fast, the control effect is good, but also safe and reliable.

Embodiment one

As shown in Figure 1, the anti-collision barrel switch of the washing machine described in this embodiment, when the washing machine rotates stably, when the heavy ball 2 exerts pressure on the pressure transmission device by its own gravity, or the heavy ball 2 is under the influence of external force, the heavy ball 2 When rolling down in the limited space to apply pressure to the pressure transmission device, the pressure transmission device receives the downward force given by the heavy ball 2, and the pressure transmission device moves downward after receiving the force, and exerts pressure on the pressure transmission device arranged below the pressure transmission device. The supporting spring 4 is deformed after being subjected to pressure, and at the same time, when the pressure transmission device moves downward, the pressure will be transmitted to the contact switch 5 which is closed after receiving the pressure. At this time, the contact switch 5 is in a closed state under pressure, and the contact switch 5 transmits the connection signal to the circuit control device of the washing machine.

Embodiment two

As shown in Figure 2, the anti-collision barrel switch of the washing machine described in this embodiment, when the washing machine fluctuates, the heavy ball 2 rolls in the limited space under the influence of the external force, and when the heavy ball 2 rolls upward , the heavy ball 2 reduces the pressure applied to the pressure transmission device, and the support spring 4 starts to restore the original shape from the compressed deformation state. While restoring the original shape, the support spring 4 will give the pressure transmission device an upward support force, driving the support The pressure transmission device above moves upward, and the pressure transmission device moving upward releases the pressure on the contact switch 5. At this time, the contact switch 5 is in an open state, and the contact switch 5 transmits the disconnection signal to the circuit control device of the washing machine.

Embodiment three

As shown in Figures 1 to 3, in the anti-collision barrel switch of the washing machine described in this embodiment, the pressure transmission device can be a lever 3, and the lever 3 includes a hinge point 33 at one end, a fulcrum 32 and a pressure point 31 at the other end, a hinge point 33 is set on the right end of the housing 1, the fulcrum 32 is located above the contact switch 5 which is closed after being pressed, the pressure receiving point 31 is located below the pressure providing device, the pressure providing device presses down on the pressure receiving point 31, and the fulcrum 32 presses down to make the contact switch 5 Closed, used to transmit signals to the washing machine circuit control device.

Further, the fulcrum 32 in the middle of the lever 3 is a convex point where the lever 3 bends downward, and is used for pressing down the contact switch 5 . This structure may be a downward convex bending structure of the lever 3 as shown in Fig. 1 and Fig. 2 . Since the lever 3 is under stress for a long time, the bending structure may cause deformation and affect the service life. In order to solve the above technical problems, the present invention can also be a solid injection molding structure as shown in FIG. 3 , which can increase the service life of the lever 3 and make the control effect more reliable.

Embodiment four

In the anti-collision barrel switch of the washing machine described in this embodiment, the contact switch 5 includes a moving elastic piece 51 and a static elastic piece 52, the moving elastic piece 51 is a pressure transmission device, one end of the moving elastic piece 51 is fixedly connected to the side wall of the second cavity 12, and the other end Extending to the first cavity 11, the pressure providing device is located above the moving elastic piece 51, and the middle part of the moving elastic piece 51 is provided with a convex contact point. 52 is opened/closed, and the moving elastic piece 51 and the static elastic piece 52 transmit the instantaneous on-off signal to the washing machine circuit control device.

In addition, the present invention also provides a washing machine, which includes an anti-collision bucket switch, which has the characteristics of the above-mentioned washing machine anti-collision bucket switch, and the washing machine anti-collision bucket switch is installed at any part of the washing machine base or within the lower half of the washing machine barrel.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology of this patent Without departing from the scope of the technical solution of the present invention, personnel can use the technical content of the above prompts to make some changes or modify them into equivalent embodiments with equivalent changes. In essence, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the solutions of the present invention.

Claims (10)

1. a kind of washing machine Anti-collision barrel switch, including housing and the contact-making switch in housing, it is characterised in that：Shape in housing Into chamber, cavity bottom is provided with support meanss, and top is provided with pressure conduction device, and pressure conduction device passes for contact-making switch Pass the pressure of folding；

The pressure providing device that pressure is provided for pressure conduction device is additionally provided with chamber, pressure providing device is movably set in shell In fluid chamber；

When housing rocks, pressure providing device is supplied to the pressure of contact-making switch size variation by pressure conduction device so that Contact-making switch is repeatedly opening/closing；

The signal of moment break-make is passed to washing machine circuit control device by contact-making switch.

2. washing machine Anti-collision barrel switch according to claim 1, it is characterised in that：The support meanss are spring, one end Installed in cavity bottom, the other end supports pressure conduction device upwards, and pressure providing device provides the pressure of pressure conduction device More than the elastic force of spring so that contact-making switch closes, and pressure providing device motion, the elastic force of spring overcomes pressure providing device Pressure so that contact-making switch is opened.

3. washing machine Anti-collision barrel switch according to claim 1 or 2, it is characterised in that：The pressure providing device is rolling The dynamic heavy ball on pressure conduction device, heavy ball roll on pressure conduction device, pass to contact-making switch size variation Pressure.

4. washing machine Anti-collision barrel switch according to claim 3, it is characterised in that：The housing is horizontally disposed to be had The first cavity volume and the second cavity volume communicated, the heavy ball, which rolls, to be arranged above pressure conduction device and the first cavity volume top Between, the height of the second cavity volume is less than the height of the first cavity volume, and two cavity volume adjacents form the limiting section of heavy ball.

5. washing machine Anti-collision barrel switch according to claim 4, it is characterised in that：The support meanss are located at the first chamber Room, it is preferred that support meanss are located at first chamber close to the side of second chamber.

6. washing machine Anti-collision barrel switch according to claim 4, it is characterised in that：The pressure conduction device bottom includes One strong point, in the strong point, the described one end of pressure conduction device away from second chamber is inclined upwardly extension support device.

7. washing machine Anti-collision barrel switch according to claim 6, it is characterised in that：The pressure conduction device is away from second The distance between one end of chamber and neighbouring first chamber inwall are not more than the radius of heavy ball.

8. switched according to any described washing machine Anti-collision barrels of claim 1-7, it is characterised in that：The pressure conduction device is Lever, lever include one end pin joint, fulcrum and other end pressure spot, the contact-making switch that fulcrum closes after being pressurized it is upper Side, pressure spot are located at below pressure providing device, and pressure providing device pushes pressure spot, and fulcrum, which pushes, closes contact-making switch, Deliver a signal to washing machine circuit control device.

9. washing machine Anti-collision barrel switch according to claim 1, it is characterised in that：The contact-making switch include spring plate and Quiet shell fragment, spring plate are the pressure conduction device, and spring plate one end is fixedly connected on cavity volume side wall, and the other end extends pressure The lower section of device is provided, convex contact point is provided with down in the middle part of spring plate, it is described dynamic when pressure providing device motion jerkiness presses The signal of moment break-make is passed to washing machine by the contact point of shell fragment and quiet shell fragment opened/closed, the spring plate with quiet shell fragment Circuit control device.

A kind of 10. washing machine, it is characterised in that：With the washing machine Anti-collision barrel switch as described in claim 1-9 is any.