CN115987008A

CN115987008A - Mover offset adjusting device, linear motor and linear compressor

Info

Publication number: CN115987008A
Application number: CN202111197807.5A
Authority: CN
Inventors: 荀玉强; 陈厚磊; 赵雅楠
Original assignee: Technical Institute of Physics and Chemistry of CAS
Current assignee: Technical Institute of Physics and Chemistry of CAS
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2023-04-18

Abstract

The disclosure relates to the technical field of compressors, in particular to a rotor offset adjusting device, a linear motor and a linear compressor. Concretely, active cell offset adjusting device includes mounting and regulating part, the mounting is connected with the flat spring subassembly of cover on the active cell, the one end of regulating part with the mounting is connected, the other end with the outer periphery of active cell is connected, just the regulating part with the one end that the active cell is connected can be followed the axial displacement of regulating part. The mover can be extruded along the radial direction by moving one end of the adjusting piece connected with the mover, and then the effect of adjusting the offset of the mover is achieved. The offset adjusting device is simple in structure and convenient to operate.

Description

Mover offset adjusting device, linear motor and linear compressor

Technical Field

The disclosure relates to the technical field of compressors, in particular to a rotor offset adjusting device, a linear motor and a linear compressor.

Background

The linear compressor is one of reciprocating piston compressors, in which a supporting technology of a plate spring is a key technology of the linear compressor. The piston supporting structure is used as an elastic part of the array subsystem, supports the piston and the electronic rotor assembly, and is required to have enough axial rigidity and radial rigidity to ensure the axial reciprocating motion of the piston. Compared with the traditional cylindrical spring, the plate spring has higher radial rigidity, can ensure that the piston does not deviate from a balance position to generate radial displacement due to vibration in reciprocating linear motion, ensures the clearance sealing between the cylinder and the piston, avoids leakage loss and improves the overall efficiency and reliability of the compressor.

In the linear compressor using the plate spring as the supporting technology, the offset of the mover assembly and the coil has a large influence on the working state of the linear compressor, so that the offset of the mover generally needs to be adjusted after the linear compressor is assembled; at present, the offset adjustment mode of the rotor is complex, and the adjustment precision is low.

Disclosure of Invention

In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a mover offset adjusting device, a linear motor and a linear compressor.

The utility model provides a active cell offset adjusting device, including mounting and regulating part, the mounting is connected with the plate spring subassembly of cover on the active cell, the one end of regulating part with the mounting is connected, the other end with the outer periphery of active cell is connected, just the regulating part with the one end that the active cell is connected can be followed the axial displacement of regulating part.

Optionally, the fixing piece includes a fixing sleeve, the fixing sleeve is arranged on the rotor, and a gap is formed between the inner wall of the fixing sleeve and the outer circumferential surface of the rotor.

Optionally, the fixing member includes a fixing plate, and the fixing plate is a flat plate parallel to the axis of the plate spring assembly, or the fixing plate is an arc-shaped plate centered on the axis of the plate spring assembly.

Optionally, a threaded hole is formed in the fixing piece, an external thread is formed in the adjusting piece, and the adjusting piece is inserted into the threaded hole and matched with the threaded hole.

Optionally, the adjusting part includes a telescopic rod, one end of the telescopic rod is fixed on the inner wall of the fixing part, and the other end of the telescopic rod is fixedly connected with or abutted to the outer circumferential surface of the rotor.

Optionally, the number of the adjusting parts is multiple, multiple adjusting parts are arranged at intervals along the circumferential direction of the fixing part, or at least two adjusting parts have an interval along the axial direction of the fixing part.

Optionally, the fixing member is rotatable about an axis of the leaf spring assembly.

Optionally, the gasket is further included, the gasket is coaxially arranged with the plate spring assembly and is fixedly attached to the plate spring assembly, one end of the gasket, deviating from the plate spring assembly, is provided with an annular first sliding fit portion, the first sliding fit portion is arranged with the center of the gasket as the circle center, and the fixing member is provided with a second sliding fit portion connected with the first sliding fit portion in a sliding mode.

Optionally, the end of the adjusting part is provided with a positioning chuck, and the inner wall of the positioning chuck is attached to the outer circumferential surface of the rotor.

Optionally, a positioning recess is formed in the outer circumferential surface of the rotor, a positioning portion matched with the positioning recess is arranged at the end of the adjusting piece, and the positioning portion is located in the positioning recess.

In another aspect, an embodiment of the present disclosure provides a linear motor, which includes any one of the foregoing mover offset adjusting devices.

On the other hand, the present disclosure also provides a compressor, including the above-mentioned linear motor.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the embodiment of the disclosure provides a mover offset adjusting device, which comprises a fixing part and an adjusting part, wherein the fixing part is connected with a plate spring assembly sleeved on a mover, one end of the adjusting part is connected with the fixing part, the other end of the adjusting part is connected with the outer circumferential surface of the mover, and one end of the adjusting part, which is connected with the mover, can move along the axial direction of the adjusting part. The rotor can be extruded along the radial direction by moving one end of the adjusting piece connected with the rotor, so that the effect of adjusting the offset of the rotor is realized. The offset adjusting device is simple in structure and convenient to operate.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a mover offset adjustment apparatus according to some embodiments of the present disclosure;

fig. 2 is a schematic structural diagram of a mover offset adjustment apparatus according to another embodiment of the disclosure;

fig. 3 is a schematic structural diagram of a mover offset adjustment apparatus according to some embodiments of the present disclosure;

FIG. 4 is a partial enlarged view of point A in FIG. 3;

FIG. 5 is a cross-sectional view of a mover offset adjustment apparatus according to some embodiments of the present disclosure;

fig. 6 is a cross-sectional view of a mover offset adjusting device according to other embodiments of the present disclosure.

Wherein, 1, active cell; 2. a fixing member; 3. an adjustment member; 4. a leaf spring assembly; 5. a bobbin; 6. a gasket; 101, a first electrode and a second electrode; a piston; 401. a plate spring; 402. a first gasket; 601. a first sliding fit portion; 201. a second sliding fit portion; 3a, positioning a chuck; 3b, a positioning part; 102. a positioning recess.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

As shown in fig. 1 to fig. 3, the present disclosure provides a mover offset adjusting device, which is used for adjusting an offset of a mover 1 in a moving coil linear compressor, in the moving coil linear compressor, the mover 1 is generally a piston rod, one end of the piston rod is provided with a piston 101, a coil rack 5 is sleeved on the piston rod, the piston 101 is located in the coil rack 5, a plate spring assembly 4 is also sleeved on the piston rod, the plate spring assembly 4 includes a plurality of half springs 401 and a first gasket 402 disposed between two adjacent plate springs 401, and the mover offset adjusting device is disposed on a side of the plate spring assembly 4 away from the coil rack 5. The rotor offset adjusting device mainly comprises a fixing piece 2 and an adjusting piece 3, a plate spring assembly 4 is sleeved on a rotor 1, the fixing piece 2 is connected with the plate spring assembly 4, one end of the adjusting piece 3 is connected with the fixing piece 2, the other end of the adjusting piece 3 is connected with the outer circumferential surface of the rotor 1, and one end, connected with the rotor 1, of the adjusting piece 3 can move along the axial direction of the adjusting piece 3. Specifically, in some embodiments of the present disclosure, the adjusting element 3 is disposed along the radial direction of the mover 1, one end of the adjusting element is connected to the fixing element 2, and the other end of the adjusting element is fixedly connected to the outer circumferential surface of the mover 1 or abuts against the outer circumferential surface of the mover 1, and when the offset of the mover 1 needs to be adjusted, the adjusting element 3 is moved along the axial direction, so that the adjusting element presses the mover 1 in the radial direction.

Further, in some embodiments of the present disclosure, the fixing element 2 includes a fixing sleeve, the fixing sleeve is sleeved on the mover 1 and is coaxially disposed with the plate spring assembly 4, a gap is formed between an inner wall of the fixing sleeve and an outer circumferential surface of the mover 1, and the adjusting element 3 is disposed in the gap. Set up mounting 2 into fixed sleeve's form, can set up a plurality of regulating parts 3 along fixed sleeve's circumference interval to realize diversified regulation.

Further, in some other embodiments of the present disclosure, the fixing member 2 includes a fixing plate, and the fixing plate 2 is a flat plate parallel to the axis of the plate spring assembly 4, or the fixing plate 2 is an arc-shaped plate centered on the axis of the plate spring assembly 4. The form of the fixing member 2 is not limited to a fixing sleeve, a flat plate or an arc plate, and other forms of fixing members may be used as long as the fixing member is fixedly connected to the plate spring assembly 4 and the adjusting member 3 can be connected thereto.

Further, as shown in fig. 1, in some embodiments of the present disclosure, a threaded hole is formed on the fixing element 2, an external thread is formed on the adjusting element 3, and the adjusting element 3 is inserted into the threaded hole to cooperate with the threaded hole. Specifically, through the external screw thread on regulating part 3 and the screw hole cooperation on the mounting 2, screw in and screw out regulating part 3 to make regulating part 3 along its axial displacement, regulating part 3 is at the in-process of screw in and screw out, adjusts the position of active cell 1's axis, and then realizes the regulation of offset.

Further, as shown in fig. 2, in some other embodiments of the present disclosure, the adjusting member 2 includes a telescopic rod, one end of the telescopic rod is fixed on the inner wall of the fixing member 2, and the other end of the telescopic rod is fixedly connected to or abutted against the outer circumferential surface of the mover 1. Specifically, the telescopic rod selects a telescopic cylinder and a jack, one end of the telescopic cylinder or the jack is fixed on the fixing part 2, the other end of the telescopic cylinder or the jack is abutted to the outer circumferential surface of the rotor 1, the axial position of the rotor 1 is adjusted by changing the length of the telescopic rod, and then the offset is adjusted.

Further, in some embodiments of the present disclosure, the number of the adjusting members 3 is multiple, the adjusting members 3 are arranged at intervals along the circumferential direction of the fixing member 2, and when the position of the mover 1 is adjusted, one adjusting member 3 is screwed down, and the other adjusting members 3 are unscrewed; or at least two adjusting members 3 are spaced apart in the axial direction of the fixed member 2, in which case at least one adjusting member 3 is not in the same plane as the other adjusting members 3, so that the position of the mover 1 can be adjusted by tightening one adjusting member 3 without loosening the other adjusting members 3. Specifically, generally, the number of the adjusting parts 3 is set to be 3, and 3 adjusting parts 3 are uniformly distributed along the circumferential direction of the fixing part 2, that is, the angle between any two adjacent adjusting parts 3 is 120 °, the form and structure of the 3 adjusting parts 3 are stable, and the adjustment of a plurality of angles can be realized through the 3 adjusting parts 3.

Further, in some embodiments of the present disclosure, the fixing member 3 may rotate about the axis of the leaf spring assembly 4. Specifically, set up mounting 2 into rotating around the axis of leaf spring subassembly 4, can adjust the relative position of regulating part 4 and active cell 1 in circumference, when regulating part 3 rotated different positions along with mounting 2, can realize the regulation to different position.

Further, as shown in fig. 3 and fig. 4, in some embodiments of the present disclosure, the mover offset adjusting device further includes a gasket 6, the gasket 6 is coaxially disposed with the plate spring assembly 4 and is attached to the plate spring assembly 4, an annular first sliding fit portion 601 is disposed on an end surface of one end of the gasket 6 away from the plate spring assembly 4, the first sliding fit portion 601 is disposed by using a center of the gasket 6 as a center of a circle, and an end of the fixing member 2 is disposed with a second sliding fit portion 201 slidably connected to the first sliding fit portion 601. Specifically, first sliding fit portion 601 can be the spout that sets up on gasket 6, second sliding fit portion 201 can be the slider that sets up on mounting 2, or first sliding fit portion 601 is the slider that sets up on gasket 6, second sliding fit portion 201 is the annular spout that sets up on mounting 2, slider and spout cooperation, can make mounting 2 rotate around the axis direction of leaf spring subassembly 4, in order to realize the contact of the different positions of regulating part 3 and active cell 1, realize the nimble regulation of a plurality of angles.

In addition, the end of the fixing member 2 can also be directly sleeved on the outer circumferential surface of the gasket 6, at this time, the outer circumferential surface of the gasket 6 forms an annular first sliding fit portion, and a second sliding fit portion is formed at the position where the inner wall of the fixing member 2 is matched with the gasket 6.

Further, as shown in fig. 5, in some embodiments of the present disclosure, a positioning chuck 3a is disposed at an end of the adjusting member 3, an inner wall of the positioning chuck 3a is attached to an outer circumferential surface of the mover 1, the positioning chuck 3a can increase a contact area between the adjusting member 3 and the mover 1, and fix relative positions of the adjusting member 3 and the mover 1 in a circumferential direction, so that a force applied by the adjusting member 3 to the mover 1 is always along a radial direction of the mover 1, and the adjusting member 3 is prevented from being offset when abutting against the mover 1. Preferably, the inner wall of the positioning chuck 3a is an arc-shaped surface.

Further, as shown in fig. 5, in some other embodiments of the present disclosure, a positioning recess 102 is disposed on an outer circumferential surface of the mover 1, a positioning portion 3b engaged with the positioning recess 102 is disposed at an end of the adjusting member 3, and the positioning portion 3b is located in the positioning recess 102. The outer circumference of the mover 1 is provided with a positioning recess 102, and the end of the adjusting member 3 is fixed in the positioning recess 102, so that the positions of the adjusting member 3 and the mover 1 are relatively fixed, when the adjusting member 3 contacts with the mover 1, the force of the adjusting member 3 acting on the mover 1 is always along the radial direction of the mover 1, and the adjusting member 3 is prevented from shifting when abutting against the mover 1.

Further, the embodiment of the present disclosure further provides a linear motor, which includes the above mover offset adjusting device.

Further, the embodiment of the present disclosure also provides a compressor, which includes the above linear compressor, and the compressor is generally a moving coil type linear compressor.

To sum up, the active cell offset adjusting device that this disclosed embodiment provided sets up the mounting of being connected with leaf spring and the regulating part of being connected with the mounting, and the mounting is as the basis of regulating part motion, adjusts the regulating part and extrudes the active cell along axial displacement during through and makes the axis of active cell take place the skew, and then realizes the effect of adjusting the offset, and this active cell offset adjusting device simple structure, convenient operation.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a active cell offset adjusting device, its characterized in that includes mounting (2) and regulating part (3), mounting (2) are connected with flat spring assembly (4) of cover on active cell (1), the one end of regulating part (3) with mounting (2) are connected, the other end with the outer periphery of active cell (1) is connected, just regulating part (3) with the one end that active cell (1) is connected can be followed the axial displacement of regulating part (3).

2. The mover offset adjusting device according to claim 1, wherein the fixing member (2) comprises a fixing sleeve, the fixing sleeve is sleeved on the mover (1), and a gap is formed between an inner wall of the fixing sleeve and an outer circumferential surface of the mover (1).

3. Mover offset adjustment device according to claim 1, characterized in that the fixture (2) comprises a fixed plate, which is a flat plate parallel to the axis of the plate spring assembly (4) or which is an arc-shaped plate centered on the axis of the plate spring assembly (4).

4. The mover offset adjusting apparatus according to claim 1, wherein the fixing member (2) is provided with a threaded hole, the adjusting member (3) is provided with an external thread, and the adjusting member (3) is inserted into the threaded hole to be engaged with the threaded hole.

5. The mover offset adjusting device according to claim 1, wherein the adjusting member (3) comprises a telescopic rod, one end of the telescopic rod is fixed on the inner wall of the fixing member (2), and the other end of the telescopic rod is fixedly connected with or abutted against the outer circumferential surface of the mover (1).

6. The mover offset adjusting apparatus according to claim 2, wherein the number of said adjusting members (3) is plural, a plurality of said adjusting members (3) are provided at intervals in a circumferential direction of said fixing member (2), or at least two of said adjusting members (3) have an interval in an axial direction of said fixing member (2).

7. Mover offset adjustment device according to claim 1, characterized in that the fixture (2) is rotatable around the axis of the leaf spring assembly (4).

8. The mover offset adjusting device according to claim 7, further comprising a gasket (6), wherein the gasket (6) is coaxially disposed with the plate spring assembly (4) and is attached and fixed to the plate spring assembly (4), one end of the gasket (6) away from the plate spring assembly (4) is provided with an annular first sliding fit portion (601), the first sliding fit portion (601) is disposed with a center of the gasket (6) as a circle center, and the fixing member (2) is provided with a second sliding fit portion (201) slidably connected with the first sliding fit portion (601).

9. The mover offset adjusting apparatus according to any one of claims 1-8, wherein a positioning chuck (3 a) is provided at an end of the adjusting member (3), and an inner wall of the positioning chuck (3 a) is attached to an outer circumferential surface of the mover (1).

10. The mover offset adjusting device according to any one of claims 1-8, wherein a positioning recess (102) is provided on an outer circumferential surface of the mover (1), an end portion of the adjusting member (3) is provided with a positioning portion (3 b) engaged with the positioning recess (102), and the positioning portion (3 b) is located in the positioning recess (102).

11. A linear motor comprising a mover offset adjusting apparatus as claimed in any one of claims 1 to 10.

12. A linear compressor comprising a linear motor according to claim 11.