KR102130409B1 - Compressor - Google Patents

Abstract

The present invention relates to a compressor, the casing; A compression mechanism provided inside the casing to compress the refrigerant; A rotation shaft that transmits rotational force from a driving source provided outside the casing to the compressor mechanism; A clutch that generates a magnetic force when power is applied to connect the driving source and the rotating shaft, and when power is cut off, loses magnetic force to separate the driving source and the rotating shaft; And rotation measuring means receiving magnetic force from the clutch and measuring a change in magnetic flux according to rotation of the rotating shaft to measure the rotational speed of the rotating shaft. Thereby, the rotational speed of the rotating shaft can be measured without including the permanent magnet. In addition, the sensor-mounted groove on which the sensor of the rotation measuring means is mounted communicates with the outside of the casing, but is blocked from the inside of the casing, thereby preventing refrigerant leakage due to the rotation measuring means. In addition, by including a fixing means for fixing the rotation measuring means, it is possible to reduce the cost and time required to install the rotation measuring means, it is possible to prevent the rotation measuring means is deviated during operation.

Description

Compressor {COMPRESSOR}

The present invention relates to a compressor, and more particularly, to a compressor capable of measuring the rotational speed of a rotating shaft that transmits rotational force from a drive source to a compressor mechanism.

Generally, an air conditioner (A/C) for indoor air conditioning is installed in a vehicle. Such an air conditioning system includes a compressor that compresses a low-temperature, low-pressure gaseous refrigerant drawn from an evaporator into a high-temperature and high-pressure gaseous refrigerant and sends it to a condenser as a cooling system.

Compressors include a reciprocating type for compressing refrigerant according to the reciprocating motion of a piston and a rotating type for performing compression while rotating. In the reciprocating type, there are a crank type that uses a crank to transfer to a plurality of pistons according to a transmission method of a driving source, and a swash plate type that transmits to a rotating shaft where a swash plate is installed. There is a scrolling type using orbiting scroll and fixed scroll.

Such a compressor typically includes a rotating shaft that transmits rotational force to a compression mechanism that compresses refrigerant.

Specifically, referring to Japanese Patent Publication No. 2715544, a conventional compressor includes a casing, a compression mechanism (11, 13) provided inside the casing and compressing refrigerant, and a driving source provided outside the casing (eg For example, a rotating shaft 4 for transmitting rotational force from the engine) to the compressor mechanism 11 and 13 and a clutch for selectively connecting and disconnecting the driving source and the rotating shaft 4.

The clutch is a pulley (not shown) that is rotated by receiving power from the drive source, a disk hub assembly (not shown) that is fastened to the rotation shaft 4 and selectively contacts and spaces the pulley, and generates magnetic force when power is applied. When the field coil assembly 9 and the field coil assembly 9 that contact the pulley and the disk hub assembly are cut off and the field coil assembly loses magnetic force, the separation between the pulley and the disk hub assembly is separated. Sudan (not shown).

In order to receive power from the drive source, the pulley and the drive source are connected to each other by a drive belt.

However, when a problem occurs with the compressor, the pulley is receiving power from the drive source, but when the pulley and the disk hub assembly are in contact, the hub assembly may not rotate normally.

In this case, slips may occur in the drive belt connected to the pulley of the drive source and the compressor, thereby damaging the drive source as well as the compressor.

Therefore, in order to prevent such belt slip in advance, the rotational speed of the driving source is compared with the rotational speed of the compressor to stop the clutch when a problem occurs with the compressor.

In consideration of this, the conventional compressor is configured by including a rotation measuring means including a permanent magnet 17 mounted to be rotated with the rotating shaft and a sensor 18 for measuring a change in magnetic flux of the permanent magnet 17. The rotational speed of the rotating shaft 4 is measured.

However, in such a conventional compressor, the rotation measuring means includes a permanent magnet 17. Thereby, the inertia of the rotating body is increased, the balance of the rotating body becomes unstable, noise and vibration deteriorate, and bearings supporting the rotating body are damaged. In addition, when the permanent magnet is rotated, the size of the compressor must be increased so that the permanent magnet does not collide with other parts, and the weight and cost of the compressor are deteriorated according to the addition of the permanent magnet and the size of the compressor.

In addition, as the sensor 18 of the rotation measuring means is installed through the casing, the refrigerant leaks through the through hole of the casing for sensor installation.

In addition, there is a problem that it takes a considerable amount of cost and time to install the rotation measuring means to prevent leakage of refrigerant.

In addition, there is a problem in that the rotation measuring means deviates during operation.

Japanese Patent Publication No. 2715544

Accordingly, an object of the present invention is to provide a compressor capable of measuring the rotational speed of a rotating shaft without including a permanent magnet.

In addition, another object of the present invention is to provide a compressor capable of preventing refrigerant leakage due to rotation measuring means for measuring the rotational speed of the rotating shaft.

In addition, another object of the present invention is to provide a compressor capable of reducing the cost and time required to install the rotation measuring means.

In addition, another object of the present invention is to provide a compressor capable of preventing the rotation measuring means from deviating during operation.

The present invention, to achieve the above object, the casing; A compression mechanism provided inside the casing to compress the refrigerant; A rotation shaft that transmits rotational force from a driving source provided outside the casing to the compressor mechanism; A clutch that generates a magnetic force when power is applied to connect the driving source and the rotating shaft, and when power is cut off, loses magnetic force to separate the driving source and the rotating shaft; And rotation measuring means receiving magnetic force from the clutch and measuring a change in magnetic flux according to rotation of the rotating shaft to measure the rotational speed of the rotating shaft. The rotation measuring means is seated in a sensor mounting groove formed in the casing. However, the sensor mounting groove is formed on the outer surface of the casing, and provides a compressor including fixing means for fixing the rotation measuring means to the sensor mounting groove.

The compressor mechanism, the swash plate is inclinedly coupled to the rotating shaft, rotates with the rotating shaft; A piston accommodated in the bore of the casing, coupled to the swash plate, and reciprocated within the bore by rotation of the swash plate; And an inclination adjustment mechanism that adjusts an inclination angle of the swash plate with respect to the rotation axis to vary the compression capacity, wherein the inclination adjustment mechanism is fastened to the rotation axis and rotates with the rotation axis when magnetizing the clutch and excitation (勵Iii) a rotor to be included, and the rotation measuring means may include a hall effect sensor that measures the magnetic flux of the rotor.

The hall sensor may be formed adjacent to the rotor.

The hall sensor may be disposed within a range of magnetic force lines formed between the clutch and the rotor.

The fixing means may be formed to be fixed when the hall sensor is inserted into the sensor mounting groove.

At least one hook is formed in the hall sensor, and a hook groove into which the hook is inserted may be formed in at least one of the casing and the clutch.

The hall sensor and the hook may be integrally formed.

The clutch includes a pulley that is rotated by receiving power from the driving source; A disk hub assembly engaged with the rotating shaft and selectively contacting and spaced from the pulley; A field coil assembly that generates a magnetic force when power is applied to contact the pulley and the disc hub assembly; And separation means for separating the pulley from the disc hub assembly when power is cut off from the field coil assembly and the field coil assembly loses magnetic force. The field coil assembly includes: a coil housing; And a coil accommodated in the coil housing and generating electromagnetic force when power is applied. The coil housing includes a flange portion protruding from the coil housing and facing the sensor mounting groove. A sensing part interposed between the sensor mounting groove and the flange part; And a fixing part protruding from the sensing part and positioned on the opposite side of the sensing part based on the flange part.

A first hook protruding toward the flange portion may be formed in the fixing portion, and a first hook groove into which the first hook is inserted may be formed in the flange portion.

A second hook protruding toward the sensor mounting groove may be formed in the sensing unit, and a second hook groove into which the second hook is inserted may be formed in the sensor mounting groove.

When the hall sensor is inserted into the sensor mounting groove, the first hook is inserted into the first hook groove, the second hook is inserted into the second hook groove, and the first hook groove is inserted into the When the first hook deviates from the first hook groove, the second hook may remain inserted into the second hook groove.

The compressor according to the present invention includes a casing; A compression mechanism provided inside the casing to compress the refrigerant; A rotation shaft that transmits rotational force from a driving source provided outside the casing to the compressor mechanism; A clutch that generates a magnetic force when power is applied to connect the driving source and the rotating shaft, and when power is cut off, loses magnetic force to separate the driving source and the rotating shaft; And rotation measuring means receiving magnetic force from the clutch and measuring a change in magnetic flux according to rotation of the rotating shaft to measure the rotational speed of the rotating shaft. Thereby, the rotational speed of the rotating shaft can be measured without including the permanent magnet. Accordingly, it is possible to prevent an increase in inertia and balance destabilization of the rotating body, to prevent deterioration of noise and vibration, and to prevent damage to a bearing supporting the rotating body. And, it can be prevented that the size, weight, and cost of the compressor according to the permanent magnet deteriorate.

In addition, according to the present invention, the sensor mounting groove on which the sensor of the rotation measuring means is mounted is formed to be communicated with the outside of the casing but blocked from the inside of the casing, thereby preventing refrigerant leakage due to the rotation measuring means.

In addition, the present invention, by including a fixing means for fixing the rotation measuring means, it is possible to reduce the cost and time required to install the rotation measuring means.

In addition, the present invention, as a fixing means, the first hook (H11) and the second hook (H21) is formed in the hall sensor, the first hook groove (H12) is inserted into the first hook (H11) in the clutch It is formed, and as the second hook groove H22 in which the second hook H21 is inserted into the casing is formed, it is possible to prevent the rotation measuring means from deviating during operation.

1 is a cross-sectional view showing a compressor according to an embodiment of the present invention,
Figure 2 is a diagram showing the magnetization portion and the magnetic force line when power is applied to the coil in the compressor of Figure 1,
3 to 5 are each a cross-sectional view showing a compressor according to another embodiment of the present invention,
Figure 6 is a cross-sectional view showing a compressor according to another embodiment of the present invention,
Figure 7 is an exploded perspective view showing the hall sensor mounting portion in the compressor of Figure 6,
8 is a perspective view of the hall sensor of FIG. 7 as viewed from below;
9 is a cross-sectional view showing a compressor according to another embodiment of the present invention,
10 is an exploded perspective view showing a hall sensor mounting portion in the compressor of FIG. 9,
11 is a perspective view of the hall sensor of FIG. 10 as viewed from below.

Hereinafter, a compressor according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a compressor according to an embodiment of the present invention, and FIG. 2 is a diagram showing a magnetization site and a magnetic force line when power is applied to a coil in the compressor of FIG. 1.

1 and 2, the compressor according to an embodiment of the present invention, the casing (1), provided inside the casing (1), the compression mechanism (2) for compressing the refrigerant, the casing ( 1) The rotational shaft 3 for transmitting rotational force from a driving source (for example, an engine) (not shown) provided on the outside to the compressor mechanism 2 and the driving source (not shown) and the rotating shaft 3 are selectively selected. It may include a clutch (4) for connecting and disconnecting.

The compression mechanism 2 may be formed in various ways, such as a swash plate method including a swash plate and a piston, a scroll method including a orbiting scroll and a non-orbiting scroll, but may be formed in a swash plate method in the present embodiment. That is, the compression mechanism (2) according to the present embodiment, the piston (21) provided to be reciprocally movable inside the bore, fastened to the rotating shaft (3) and rotated together with the rotating shaft (3) and the piston ( 21) may include a swash plate 22 that reciprocates.

The rotating shaft 3, one end is connected to the compression mechanism (2), the other end penetrates the casing (1) and protrudes to the outside of the casing (1), a disk hub to be described later of the clutch (4) It can be fastened with the assembly 42.

The clutch 4 is a pulley 41 that is rotated by receiving power from the driving source (not shown), and a disk hub assembly 42 that is engaged with the rotation shaft 3 and selectively contacts and spaces the pulley 41. ), power is cut off to the field coil assembly 43 and the field coil assembly 43 to contact the pulley 41 and the disc hub assembly 42 by generating magnetic force when power is applied, and the field coil assembly 43 ) May include a separating means (not shown) separating the pulley 41 and the disk hub assembly 42 when the magnetic force is lost.

The pulley 41, the pulley 41 is formed in a substantially annular shape, a driving belt (not shown) that transmits a driving force from the driving source (not shown) to the pulley 41 on the outer circumferential surface of the pulley 41 A drive belt fastening surface 412 is installed, and a bearing 44 rotatably supporting the pulley 41 is interposed between the inner circumferential surface of the pulley 41 and the outer surface of the casing 1. Can.

And, on one side of the pulley 41, a friction surface 414 that can be contacted with a disk 424 to be described later of the disk hub assembly 42 is formed, and on the other side of the pulley 41, the field coil assembly A field coil assembly receiving groove 415 into which the 43 is inserted may be formed.

The disk hub assembly 42 may include a hub 422 fastened to the rotating shaft 3 and a disk 424 extending from the hub 422 and selectively contacting and spaced from the pulley 41. have.

The field coil assembly 43 may include a coil housing 432 and a coil 434 accommodated in the coil housing 432 and generate electromagnetic force when power is applied.

The separation means (not shown) may be formed of an elastic member that applies a force to the disk hub assembly 42 in a direction away from the pulley 41.

The compressor according to this embodiment according to this configuration can be operated as follows.

That is, the pulley 41 may be rotated by receiving a driving force from the driving source (not shown).

In this state, when power is applied to the coil 434, the disk hub assembly 42 is moved toward the pulley 41 by the suction force by the magnetic induction of the coil 434, and the pulley 41 is moved to the pulley 41. Can be in close contact. That is, as the disk hub assembly 42 and the pulley 41 are engaged, power of the driving source (not shown) is transmitted to the rotating shaft 3 through the pulley 41 and the disk hub assembly 42. Can be. In addition, the rotating shaft 3 may compress the refrigerant by operating the compressor mechanism 2 with the received power.

On the other hand, when the application of power to the coil 434 is stopped, the suction force due to magnetic induction of the coil 434 is no longer generated, and the disk hub assembly 42 is moved by the separation means (not shown). It may be moved in a direction away from the pulley 41 to be spaced apart from the pulley 41. That is, power transmission from the driving source (not shown) to the rotating shaft 3 may be stopped. In addition, the compressor mechanism 2 may be stopped and refrigerant compression may be stopped.

In this process, when the disk hub assembly 42 and the pulley 41 come into contact while the rotational speed of the disk hub assembly 42 and the rotational speed of the pulley 41 are different, the disk hub assembly ( 42) and the pulley 41, slip is generated to generate noise and vibration, or the drive belt (not shown) by the impact force according to the contact between the disk hub assembly 42 and the pulley 41, the Damage may occur to at least one of a driving source (not shown) and the compressor. The pulley 41 is connected to a drive belt (not shown) between the pulley 41 and the drive source to receive power from the drive source (not shown).

However, when a problem occurs with the compressor, the pulley 41 is receiving power from the drive source, but when the pulley and the disk hub assembly 22 contact, the hub assembly 22 may not rotate normally. .

In this case, slips may occur in the drive belt connected to the drive source and the pulley 41 of the compressor, thereby damaging the drive source as well as the compressor.

To prevent this problem, the compressor according to the present embodiment may include a rotation measuring means 5 for measuring the rotational speed of the rotating shaft 3.

Here, the rotation measuring means 5 may be formed to measure the rotational speed of the rotating shaft 3 without including a permanent magnet.

Specifically, as a result of the study, as shown in FIG. 2, when the clutch 4 is magnetized, the rotating shaft 3 and the rotating components such as the rotating shaft 3 (for example, the rotor 232 to be described later) ) Was also magnetized (red area in the drawing).

Using this, the rotation measuring means 5 is a hall effect sensor measuring a change in magnetic flux caused by the magnetized rotating shaft 3 or a component rotated with the rotating shaft 3 It can be configured to be provided with (52). That is, the rotation measuring means 5 does not include a permanent magnet, and does not measure changes in magnetic flux caused by the permanent magnet.

Accordingly, the compressor according to the present embodiment increases the inertia of the rotating body due to the permanent magnet, deteriorates the balance of the rotating body, deteriorates noise vibration, damages the bearing supporting the rotating body, leaks refrigerant, increases the size of the compressor, and increases the weight of the compressor And it is possible to prevent the increase in the cost of the compressor.

On the other hand, the hall sensor 52 is preferably formed to measure the change in magnetic flux due to a component rotated with the rotation shaft 3 as in this embodiment, rather than being formed to measure the change in magnetic flux caused by the rotation shaft 3. can do.

Specifically, the accuracy of the hall sensor 52 may be improved as it is closer to the measurement object.

Accordingly, the hall sensor 52 is preferably installed adjacent to the rotating shaft 3 when it is formed to measure the change in magnetic flux by the rotating shaft 3, the clutch 4 and the rotating shaft (3) It may be more preferable to be installed within the range of magnetic force lines formed between. However, in this case, the diameter of the rotating shaft 3 is relatively small, and the hall sensor 52 must be fixed to the center of the inner space of the casing 1 to be adjacent to the rotating shaft 3, but the casing ( It is not easy to fix the hall sensor 52 in the center of the interior space of 1), and the range of magnetic force lines formed between the clutch 4 and the rotating shaft 3 is narrow, so that the hall sensor 52 has its hole. It may not be easy to be placed in a position that can improve the accuracy of the sensor 52.

On the other hand, when the hall sensor 52 is formed to measure a change in magnetic flux caused by a component that is rotated together with the rotating shaft 3, it is easily arranged at a position that can improve the accuracy of the hall sensor 52. Can be. That is, when formed in a swash plate manner as in the present embodiment, it includes a tilt adjustment mechanism 23 for adjusting the compression capacity by adjusting the inclination angle of the swash plate 22 with respect to the rotating shaft 3, the tilt adjustment mechanism 23 includes a rotor 232 that is fastened to the rotating shaft 3 and rotates together with the rotating shaft 3. When the clutch 4 is magnetized, the rotor 232 is also magnetized and a hall sensor 52 is provided. Measures the change in magnetic flux of the magnetized rotor 232. Specifically, when the rotor 232 is not circular and is divided into two at the center, the first region (hatched region) and the second region (patterned region) have different radii, and the bisector boundary surface protrudes. When the rotor 232 rotates, a change in magnetic flux occurs by this protruding area, which is detected and measured by the hall sensor 52.

At this time, the hall sensor 52 is preferably installed adjacent to the rotor 232 when it is formed to measure the magnetic flux change by the rotor 232, between the clutch 4 and the rotor 232 It may be more preferable to be installed in the range of the magnetic force line formed in. However, in this case, the diameter of the rotor 232 is relatively large, and the hall sensor 52 can be adjacent to the rotor 232 even if it is fixed to the casing 1, and the clutch 4 and the Since the range of magnetic force lines formed between the rotors 232 is relatively wide, it may be much easier to place the hall sensor 52 in a position that can improve the accuracy of the hall sensor 52. In particular, the hall sensor 52 may cause malfunction when installed in an area where the magnetization area (red area) as shown in FIG. 2 overlaps, and is preferably disposed in the upper housing of the rotor 232. If, when placed closer to the clutch 4 than the rotor 232, the hall sensor 52 will measure the magnetization state of the clutch 4, not the rotor 232, which detects the correct compressor rotation state. It is difficult to judge. Therefore, even when the hall sensor 52 is disposed between the clutch 4 and the rotor 232, the hall sensor 52 is preferably disposed close to the rotor 232.

On the other hand, the hall sensor 52 is mounted in the sensor mounting groove 12 formed in the casing 1, the sensor mounting groove 12 may be formed to be engraved from the outer surface of the casing (1). That is, the sensor mounting groove 12 may be formed to communicate with the outside of the casing 1 and be blocked from the inside of the casing 1. Thereby, leakage of refrigerant by the sensor mounting groove 12 can be prevented. That is, as the sensor mounting groove 12 is formed not to penetrate the casing 1, leakage of refrigerant from the inside of the casing 1 to the outside through the sensor mounting groove 12 can be prevented. Can.

Here, in the case of the present embodiment, the sensor mounting groove 12 is formed so as not to penetrate the casing 1 so as to prevent refrigerant leakage by the sensor mounting groove 12 in advance, for example, as a low pressure compressor. When the leakage of the refrigerant due to the sensor mounting groove 12 is not feared or when the leakage of the refrigerant through the sealing member is easily prevented, the sensor mounting groove 12 is the casing as shown in FIG. 3 or 5. It may be formed to penetrate (1). In this case, the hall sensor 52 may be disposed more closely to the rotor 232, so that the accuracy of the hall sensor 52 can be improved.

On the other hand, in the present embodiment, the hall sensor 52 is interposed between the clutch 4 and the rotor 232 to maximize the accuracy of the hall sensor 52, but the clutch 4 and the rotor ( 232) The installation of the hall sensor 52 may not be easy due to a narrow space. In consideration of this, as illustrated in FIG. 4 or FIG. 5, the hall sensor 52 may be disposed outside the rotor 232 in the radial direction. In this case, although the accuracy of the hall sensor 52 is somewhat lower, the installation of the hall sensor 52 may be easy.

On the other hand, in the case of the present embodiment, the hall sensor 52 is inserted into the sensor mounting groove 12, and the hall sensor 52 may be removed from the sensor mounting groove 12 during operation. In consideration of this, as illustrated in FIGS. 6 to 11, fixing means for fixing the hall sensor 52 to the sensor mounting groove 12 may be provided.

Here, FIG. 6 is a cross-sectional view showing a compressor according to another embodiment of the present invention, FIG. 7 is an exploded perspective view showing a hall sensor mounting portion in the compressor of FIG. 6, and FIG. 8 is a bottom view of the hall sensor of FIG. 7 It is a perspective view as seen from. In addition, Figure 9 is a cross-sectional view showing a compressor according to another embodiment of the present invention, Figure 10 is an exploded perspective view showing a hall sensor mounting portion in the compressor of Figure 9, Figure 11 is a bottom of the Hall sensor of Figure 10 It is a perspective view as seen from.

6 to 8, the compressor according to the embodiment shown in FIGS. 6 to 8 prevents the hall sensor 52 from being detached from the sensor mounting groove 12 during operation. Fixing means for fixing the hall sensor 52 to the sensor mounting groove 12 may be further included.

The fixing means, unlike the embodiments illustrated in FIGS. 6 to 8, may be formed of a separate fastening member such as, for example, a bolt. That is, after the hall sensor 52 is inserted into the sensor mounting groove 12, the separate fastening member is fastened, so that the hall sensor 52 may be fixed to the sensor mounting groove 12. However, in this case, a separate fastening member may be provided, and it may take considerable cost and time to fix the hall sensor 52 to the sensor mounting groove 12 with the separate fastening member.

In consideration of this, the fixing means according to the embodiment shown in FIGS. 6 to 8, the hole sensor 52 is the fixing means to reduce the cost and time required to fix the hall sensor 52 When inserted into the sensor mounting groove 12 may be fixedly formed. That is, a first hook H11 is formed on the hall sensor 52 so that the hall sensor 52 is fixed to the sensor mounting groove 12 at a time, and the first hook is provided on the clutch 4. A first hook groove H12 into which the H11 is inserted may be formed.

More specifically, the sensor mounting groove 12 may be formed to be opened toward the clutch 4 side.

In addition, the coil housing 432 of the clutch 4 may include a flange portion 436 protruding from the coil housing 432 and facing an opening of the sensor mounting groove 12.

In addition, the first hook groove H12 penetrating the flange portion 436 may be formed at a front end portion of the flange portion 436.

In addition, the hall sensor 52 is seated in the sensor mounting groove 12 and interposed between the sensor mounting groove 12 and the flange portion 436 and the sensing unit 522 and the sensing unit 522. It may include a fixing portion 524 that protrudes from) and is located on the opposite side of the sensing portion 522 based on the flange portion 436.

In addition, the first hook H11 protruding toward the sensing portion 522 may be formed at a front end portion of the fixing portion 524. Here, the fixing part 524 and the first hook H11 may be integrally formed to reduce cost and time required to form the fixing part 524 and the first hook H11.

According to this configuration, when the hall sensor 52 is inserted into the sensor mounting groove 12, the first hook H11 is bound to the first hook groove H12 and the sensor mounting groove 12 Can be fixed. This not only prevents the hall sensor 52 from being detached from the sensor mounting groove 12 during operation, but also fixes the hall sensor 52 to the sensor mounting groove 12 with less time and cost. Can.

Here, in the embodiment illustrated in FIGS. 6 to 8, the first hook H11 is formed in the hall sensor 52, and the first hook groove H12 is formed in the clutch 4. However, the present invention is not limited thereto, and the first hook H11 may be formed on the clutch 4, and the first hook groove H12 may be formed on the hall sensor 52.

And, in the embodiment shown in Figures 6 to 8, to prevent the vulnerable portion is generated in the casing (1), to reduce the cost and time required to form the first hook groove (H12), the sensor The mounting groove 12 is formed to open toward the clutch 4 side, the flange portion 436 is formed in the coil housing 432 of the clutch 4, the flange portion 436, the agent One hook groove (H12) is formed. However, the present invention is not limited thereto, and the sensor mounting groove 12 is formed with a partition wall (part of the casing) between the clutch 4 and the sensor mounting groove 12 similarly to FIG. 1, and the first hook groove (H12) may be formed on the partition wall. Meanwhile, in the embodiment shown in FIGS. 6 to 8, the first hook H11 is removed from the first hook groove H12 due to vibration during operation, etc. The hall sensor 52 may be detached from the sensor mounting groove 12. In consideration of this, as illustrated in FIGS. 9 to 11, even if the first hook H11 inserted in the first hook groove H12 is detached from the first hook groove H12, the hall sensor 52 ) May be formed to prevent the sensor mounting groove 12 from being detached.

9 to 11, the compressor according to the embodiment shown in FIGS. 9 to 11, the first hook (H11) and the first hook as shown in the embodiment shown in Figures 6 to 8 The second hook groove H22 into which the second hook H21 is inserted into the second hook H21 formed in the sensing portion 522 and the sensor mounting groove 12 while including the groove H12 is provided. It may further include.

The second hook H21 may be formed to protrude from the sensing unit 522 toward the sensor mounting groove 12. Here, the second hook H21 may be formed on the opposite side of the fixing part 524 based on the sensing part 522.

The second hook groove H22 may be formed to be engraved from the sensor mounting groove 12.

According to this configuration, the hall sensor 52 may be fixed to the sensor mounting groove 12 at a time as described above. Here, when inserted into the sensor mounting groove 12, the first hook (H11) is inserted into the first hook groove (H12), the second hook (H21) is the second hook groove (H22) Can be inserted in.

In addition, the hall sensor 12 is not only fixed to the sensor mounting groove 12 by binding the first hook H11 to the first hook groove H12, but also the second hook H21 is the It is bound to the second hook groove (H22) can be fixed to the sensor mounting groove 12 more firmly.

In addition, even if the first hook H11 inserted into the first hook groove H12 is removed from the first hook groove H12 during operation, the second hook H21 is connected to the second hook groove ( H22), it is possible to prevent the hall sensor 52 from being detached from the sensor mounting groove 12.

Here, in the embodiment illustrated in FIGS. 9 to 11, the second hook H21 is formed in the hall sensor 52, and the second hook groove H22 is formed in the sensor mounting groove 12 do. However, the present invention is not limited thereto, and the second hook H21 may protrude from the sensor mounting groove 12 and the second hook groove H22 may be formed on the hall sensor 52.

Meanwhile, although not separately illustrated, only the second hook H21 and the second hook groove H22 may be formed without the first hook H11 and the first hook groove H12.

1: Casing 2: Compressor
3: rotating shaft 4: clutch
5: rotation measuring means 12: sensor mounting groove
21: piston 22: swash plate
23: tilt adjustment mechanism 41: pulley
42: disc hub assembly 43: field coil assembly
52: Hall sensor 232: Rotor
43: coil housing 436: flange portion
522: sensing unit 524: fixing unit
H11: First hook H12: First hook groove
H21: Second hook H22: Second hook groove

Claims (11)

Casing 1;
A compression mechanism (2) provided inside the casing (1) for compressing refrigerant;
A rotating shaft (3) for transmitting rotational force from a driving source provided outside the casing (1) to the compressor mechanism (2);
A clutch 4 that generates a magnetic force when power is applied to connect the driving source and the rotating shaft 3, and when the power is cut off, loses magnetic force to separate the driving source and the rotating shaft 3; And
It includes; rotation measurement means (5) for receiving the magnetic force from the clutch (4), measuring the change in magnetic flux according to the rotation of the rotating shaft (3) to measure the rotational speed of the rotating shaft (3);
The rotation measuring means 5 is seated in the sensor mounting groove 12 formed in the casing 1,
The sensor mounting groove 12 is formed on the outer surface of the casing 1, and includes fixing means for fixing the rotation measuring means 5 to the sensor mounting groove 12,
The clutch 4, the pulley 41 is rotated by receiving power from the drive source; A disk hub assembly 42 engaged with the rotating shaft 3 and selectively contacting and spaced from the pulley 41; And a field coil assembly 43 that generates magnetic force when power is applied to contact the pulley 41 and the disk hub assembly 42.
The field coil assembly 43 includes a coil housing 432;
The coil housing 432 includes a flange portion 436 that protrudes from the coil housing 432 and faces the sensor mounting groove 12.
The fixing means includes a sensing unit 522 interposed between the sensor mounting groove 12 and the flange portion 436; And a fixing part 524 protruding from the sensing part 522 and positioned on the opposite side of the sensing part 522 based on the flange part 436. According to claim 1,
The compression mechanism (2),
A swash plate 22 fastened obliquely to the rotating shaft 3 and rotated together with the rotating shaft 3;
A piston 21 accommodated in the bore of the casing 1, coupled to the swash plate 22, and reciprocated within the bore by rotation of the swash plate 22; And
It includes; a tilt adjustment mechanism 23 for adjusting the inclination angle of the swash plate 22 with respect to the rotating shaft 3 to vary the compression capacity;
The inclination adjusting mechanism 23 includes a rotor 232 that is fastened to the rotating shaft 3 and rotates and excites with the rotating shaft 3 when magnetizing the clutch 4,
The rotor 232 is formed to have a different radius when divided into two equal to the center boundary,
The rotation measuring means (5) is a compressor including a hall sensor (52) (hall effect sensor) for measuring the magnetic flux of the rotor (232). According to claim 2,
The hall sensor 52 is a compressor formed adjacent to the rotor 232. According to claim 3,
The hall sensor (52) is a compressor characterized in that it is disposed within the range of the magnetic force line formed between the clutch (4) and the rotor (232). According to claim 2,
The fixing means is a compressor that is formed to be fixed when the hall sensor 52 is inserted into the sensor mounting groove (12). The method of claim 5,
At least one hook (H11, H21) is formed in the hall sensor 52, and at least one of the casing (1) and the clutch (4) is inserted into the hook groove (H12, H11, H21) H22) is formed. The method of claim 6,
The hall sensor 52 and the hooks H11 and H21 are integrally formed. According to claim 1,
The clutch 4 includes: a separation means for separating the pulley 41 and the disk hub assembly 42 when power is cut off to the field coil assembly 43 and the field coil assembly 43 loses magnetic force; Further comprising,
The field coil assembly 43, the coil housing 432 is accommodated and the coil 434 that generates an electromagnetic force when power is applied; further comprising a compressor. According to claim 1,
The fixing portion 524 is formed with a first hook (H11) protruding toward the flange portion 436,
A compressor having a first hook groove H12 into which the first hook H11 is inserted is formed in the flange portion 436. The method of claim 9,
A second hook H21 protruding toward the sensor mounting groove 12 is formed in the sensing unit 522,
A compressor in which a second hook groove H22 into which the second hook H21 is inserted is formed in the sensor mounting groove 12. The method of claim 10,
When the fixing means is inserted into the sensor mounting groove 12, the first hook H11 is inserted into the first hook groove H12, and the second hook H21 is the second hook groove ( H22),
When the first hook H11 inserted in the first hook groove H12 deviates from the first hook groove H12, the second hook H21 is inserted into the second hook groove H22 Compressor characterized in that it is maintained in the state.

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