Mover offset adjustment device, linear motor and linear and compressor

Abstract

The present disclosure relates to the technical field of compressors, in particular to a mover offset adjusting device, a linear motor and a linear compressor. Specifically, the mover offset adjusting device comprises a fixing member and an adjusting member. The fixing member is connected with a plate spring assembly sleeved on a mover. One end of the adjusting member is connected with the fixing member, and the other end is connected with an outer circumferential surface of the mover. The end of the adjusting member connected with the mover is movable along the axial direction of the adjusting member. By moving the end of the adjusting member connected with the mover, the mover can be extruded along the radial direction, thereby achieving the effect of adjusting the offset of the mover. The offset adjusting device has a simple structure and is easy to operate.

Description

Technical Field

[0001] This disclosure relates to the field of compressor technology, and more particularly to a mover offset adjustment device, a linear motor, and a linear compressor. Background Technology

[0002] Linear compressors are a type of reciprocating piston compressor, and the support technology of leaf springs is a key technology in linear compressors. As an elastic component of the rotor system, the piston support structure supports the piston and electro-actuator assembly, requiring sufficient axial and radial stiffness to ensure the axial reciprocating motion of the piston. Compared to traditional cylindrical springs, leaf springs have greater radial stiffness, ensuring that the piston does not deviate from its equilibrium position due to vibration during reciprocating linear motion, thus maintaining a tight seal between the cylinder and piston, preventing leakage losses, and improving the overall efficiency and reliability of the compressor.

[0003] In linear compressors that use leaf springs as support technology, the offset between the mover assembly and the coil has a significant impact on the working state of the linear compressor. Therefore, after the linear compressor is assembled, the offset of the mover generally needs to be adjusted. Currently, the methods for adjusting the offset of the mover are relatively complex and have low adjustment accuracy. Summary of the Invention

[0004] To solve the above-mentioned technical problems, or at least partially solve them, this disclosure provides a mover offset adjustment device, a linear motor, and a linear compressor.

[0005] This disclosure provides a mover offset adjustment device, including a fixing member and an adjusting member. The fixing member is connected to a leaf spring assembly sleeved on the mover. One end of the adjusting member is connected to the fixing member, and the other end is connected to the outer circumferential surface of the mover. The end of the adjusting member connected to the mover can move axially along the adjusting member.

[0006] Optionally, the fixing member includes a fixing sleeve, which is sleeved on the moving part, and there is a gap between the inner wall of the fixing sleeve and the outer circumferential surface of the moving part.

[0007] Optionally, the fixing member includes a fixing plate, which is a flat plate parallel to the axis of the leaf spring assembly, or the fixing plate is an arc-shaped plate centered on the axis of the leaf spring assembly.

[0008] Optionally, the fixing member is provided with a threaded hole, the adjusting member is provided with an external thread, and the adjusting member is inserted into the threaded hole to cooperate with the threaded hole.

[0009] Optionally, the adjusting component includes a telescopic rod, one end of which is fixed to the inner wall of the fixing component, and the other end is fixedly connected to or abuts against the outer circumferential surface of the moving element.

[0010] Optionally, the number of the adjusting members is multiple, and the multiple adjusting members are arranged at intervals along the circumference of the fixing member, or at least two of the adjusting members are spaced apart in the axial direction along the fixing member.

[0011] Optionally, the fixing member can rotate about the axis of the leaf spring assembly.

[0012] Optionally, it also includes a gasket, which is coaxially arranged with the leaf spring assembly and is fitted and fixed to the leaf spring assembly. The end of the gasket opposite to the leaf spring assembly is provided with an annular first sliding engagement portion, which is arranged with the center of the gasket as the center. The fixing member is provided with a second sliding engagement portion that is slidably connected to the first sliding engagement portion.

[0013] Optionally, the end of the adjusting member is provided with a positioning chuck, and the inner wall of the positioning chuck is fitted to the outer circumferential surface of the moving part.

[0014] Optionally, the outer circumferential surface of the mover is provided with a positioning recess, and the end of the adjusting member is provided with a positioning part that cooperates with the positioning recess, the positioning part being located within the positioning recess.

[0015] On the other hand, embodiments of this disclosure provide a linear motor including the mover offset adjustment device described in any of the above claims.

[0016] On the other hand, this disclosure also provides a compressor including the aforementioned linear motor.

[0017] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0018] This disclosure provides a mover offset adjustment device, including a fixing member and an adjusting member. The fixing member is connected to a leaf spring assembly sleeved on the mover. One end of the adjusting member is connected to the fixing member, and the other end is connected to the outer circumferential surface of the mover. The end of the adjusting member connected to the mover is movable along the axial direction of the adjusting member. By moving the end of the adjusting member connected to the mover, the mover can be radially compressed, thereby achieving the effect of adjusting the mover offset. This offset adjustment device has a simple structure and is easy to operate. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0020] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the mover offset adjustment device described in some embodiments of this disclosure;

[0022] Figure 2 This is a schematic diagram of the structure of the mover offset adjustment device described in other embodiments of this disclosure;

[0023] Figure 3 This is a schematic diagram of the structure of the mover offset adjustment device described in some embodiments of this disclosure;

[0024] Figure 4 for Figure 3 A magnified view of point A in the middle;

[0025] Figure 5 This is a cross-sectional view of the mover offset adjustment device described in some embodiments of this disclosure;

[0026] Figure 6 This is a cross-sectional view of the mover offset adjustment device described in other embodiments of this disclosure.

[0027] Among them, 1. Moving element; 2. Fixing element; 3. Adjusting element; 4. Leaf spring assembly; 5. Coil frame; 6. Washer; 101. Piston; 401. Leaf spring; 402. First washer; 601. First sliding fit part; 201. Second sliding fit part; 3a. Positioning chuck; 3b. Positioning part; 102. Positioning recess. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0029] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0030] like Figures 1 to 3As shown, this embodiment of the present disclosure provides a mover offset adjustment device for adjusting the offset of the mover 1 in a moving-coil linear compressor. In the moving-coil linear compressor, the mover 1 is generally a piston rod, with a piston 101 at one end. A coil frame 5 is sleeved on the piston rod, with the piston 101 located inside the coil frame 5. A leaf spring assembly 4 is also sleeved on the piston rod, and the leaf spring assembly 4 includes multiple half springs 401 and a first washer 402 disposed between two adjacent leaf springs 401. The mover offset adjustment device is disposed on the side of the leaf spring assembly 4 away from the coil frame 5. The mover offset adjustment device mainly includes a fixing member 2 and an adjusting member 3. The leaf spring assembly 4 is sleeved on the mover 1, and the fixing member 2 is connected to the leaf spring assembly 4. One end of the adjusting member 3 is connected to the fixing member 2, and the other end is connected to the outer circumferential surface of the mover 1. The end of the adjusting member 3 connected to the mover 1 can move axially along the adjusting member 3. Specifically, in some embodiments of this disclosure, the adjusting member 3 is arranged radially along the moving part 1, with one end connected to the fixing member 2 and the other end fixedly connected to or abutting against the outer circumferential surface of the moving part 1. When it is necessary to adjust the offset of the moving part 1, the adjusting member 3 is moved axially to press the moving part 1 radially.

[0031] Furthermore, in some embodiments of this disclosure, the fixing member 2 includes a fixing sleeve, which is sleeved on the moving element 1 and coaxially arranged with the leaf spring assembly 4. A gap exists between the inner wall of the fixing sleeve and the outer circumferential surface of the moving element 1, and the adjusting member 3 is disposed within this gap. By setting the fixing member 2 in the form of a fixing sleeve, multiple adjusting members 3 can be arranged at intervals along the circumference of the fixing sleeve to achieve multi-directional adjustment.

[0032] Furthermore, in some other embodiments of this disclosure, the fixing member 2 includes a fixing plate, which is a flat plate parallel to the axis of the leaf spring assembly 4, or an arc-shaped plate centered on the axis of the leaf spring assembly 4. It should be noted that the form of the fixing member 2 is not limited to a fixing sleeve, a flat plate, or an arc-shaped plate; other forms of fixing members are also acceptable as long as they are fixedly connected to the leaf spring assembly 4 and can connect to the adjusting member 3.

[0033] Furthermore, in combination Figure 1 As shown, in some embodiments of this disclosure, the fixing member 2 is provided with a threaded hole, and the adjusting member 3 is provided with an external thread. The adjusting member 3 is inserted into the threaded hole and engages with it. Specifically, by engaging the external thread on the adjusting member 3 with the threaded hole on the fixing member 2, the adjusting member 3 is screwed in and out, so that the adjusting member 3 moves along its axial direction. During the process of screwing in and out, the adjusting member 3 adjusts the position of the axis of the moving part 1, thereby achieving the adjustment of the offset.

[0034] Furthermore, in combination Figure 2As shown, in some other embodiments of this disclosure, the adjusting member 2 includes a telescopic rod, one end of which is fixed to the inner wall of the fixing member 2, and the other end is fixedly connected to or abuts against the outer circumferential surface of the mover 1. Specifically, the telescopic rod is selected from telescopic cylinders and jacks. One end of the telescopic cylinder or jack is fixed to the fixing member 2, and the other end abuts against the outer circumferential surface of the mover 1. By changing the length of the telescopic rod, the axial position of the mover 1 is adjusted, thereby realizing the adjustment of the offset.

[0035] Furthermore, in some embodiments of this disclosure, there are multiple adjusting members 3, which are spaced apart circumferentially along the fixing member 2. When adjusting the position of the moving part 1, tightening one adjusting member 3 and loosening the others is sufficient. Alternatively, at least two adjusting members 3 are spaced apart along the axial direction of the fixing member 2. In this case, at least one adjusting member 3 is not in the same plane as the other adjusting members 3, so it is not necessary to loosen the others adjusting members 3; the position of the moving part 1 can be adjusted by tightening one adjusting member 3. Specifically, the number of adjusting members 3 is generally set to three, which are evenly distributed circumferentially along the fixing member 2. That is, the angle between any two adjacent adjusting members 3 is 120°. The structure with three adjusting members 3 is relatively stable, and multiple angle adjustments can be achieved through the three adjusting members 3.

[0036] Furthermore, in some embodiments of this disclosure, the fixing member 3 can rotate about the axis of the leaf spring assembly 4. Specifically, by setting the fixing member 2 to rotate about the axis of the leaf spring assembly 4, the relative position of the adjusting member 4 and the moving part 1 in the circumferential direction can be adjusted. When the adjusting member 3 rotates to different positions with the fixing member 2, adjustment in different directions can be achieved.

[0037] Furthermore, in combination Figure 3 and Figure 4 As shown, in some embodiments of this disclosure, the mover offset adjustment device further includes a shim 6. The shim 6 is coaxially arranged with and fixed to the leaf spring assembly 4. An annular first sliding engagement portion 601 is provided on the end face of the shim 6 facing away from the leaf spring assembly 4. The first sliding engagement portion 601 is arranged with the center of the shim 6 as the center. The end of the fixing member 2 is provided with a second sliding engagement portion 201 that is slidably connected to the first sliding engagement portion 601. Specifically, the first sliding engagement portion 601 can be a groove provided on the shim 6, and the second sliding engagement portion 201 can be a slider provided on the fixing member 2. Alternatively, the first sliding engagement portion 601 can be a slider provided on the shim 6, and the second sliding engagement portion 201 can be an annular groove provided on the fixing member 2. The slider and the groove cooperate to allow the fixing member 2 to rotate around the axis of the leaf spring assembly 4, so as to realize the contact of the adjusting member 3 with the mover 1 at different positions and realize flexible adjustment of multiple angles.

[0038] In addition, the end of the fastener 2 can also be directly sleeved on the outer circumferential surface of the gasket 6. In this case, the outer circumferential surface of the gasket 6 forms a first sliding fit part, and the position where the inner wall of the fastener 2 mates with the gasket 6 forms a second sliding fit part.

[0039] Furthermore, such as Figure 5 As shown, in some embodiments of this disclosure, the end of the adjusting member 3 is provided with a positioning chuck 3a. The inner wall of the positioning chuck 3a is fitted against the outer circumferential surface of the moving part 1. The positioning chuck 3a can increase the contact area between the adjusting member 3 and the moving part 1, fixing the adjusting member 3 and the moving part 1 in relative position in the circumferential direction, so that the force exerted by the adjusting member 3 on the moving part 1 is always along the radial direction of the moving part 1, preventing the adjusting member 3 from shifting when it is pressed against the moving part 1. Preferably, the inner wall of the positioning chuck 3a is an arc-shaped surface.

[0040] Furthermore, such as Figure 5 As shown, in some other embodiments of this disclosure, a positioning recess 102 is provided on the outer circumferential surface of the mover 1, and a positioning part 3b is provided at the end of the adjusting member 3 to cooperate with the positioning recess 102. The positioning part 3b is located inside the positioning recess 102. By providing a positioning recess 102 on the outer circumferential surface of the mover 1 and fixing the end of the adjusting member 3 in the positioning recess 102, the position of the adjusting member 3 and the mover 1 is relatively fixed. When the adjusting member 3 contacts the mover 1, the force exerted by the adjusting member 3 on the mover 1 is always along the radial direction of the mover 1, preventing the adjusting member 3 from shifting when it is pressed against the mover 1.

[0041] Furthermore, this disclosure also provides a linear motor, including the aforementioned mover offset adjustment device.

[0042] Furthermore, this disclosure also provides a compressor, including the above-mentioned linear compressor, which is generally a moving-coil linear compressor.

[0043] In summary, the mover offset adjustment device provided in this embodiment of the present disclosure is provided with a fixed member connected to the leaf spring and an adjusting member connected to the fixed member. The fixed member serves as the basis for the movement of the adjusting member. When the adjusting member moves axially, it squeezes the mover, causing the axis of the mover to shift, thereby achieving the effect of adjusting the offset. This mover offset adjustment device has a simple structure and is easy to operate.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mover offset adjustment device, characterized in that, It includes a fixing member (2) and an adjusting member (3). The fixing member (2) is connected to a leaf spring assembly (4) sleeved on the mover (1). One end of the adjusting member (3) is connected to the fixing member (2), and the other end is connected to the outer circumferential surface of the mover (1). The end of the adjusting member (3) connected to the mover (1) can move along the axial direction of the adjusting member (3). The fixing member (2) can rotate about the axis of the leaf spring assembly (4); It also includes a washer (6), which is coaxially arranged with the leaf spring assembly (4) and is fixed to the leaf spring assembly (4). The washer (6) has an annular first sliding engagement part (601) at one end away from the leaf spring assembly (4). The first sliding engagement part (601) is arranged with the center of the washer (6) as the center. The fixing member (2) has a second sliding engagement part (201) that is slidably connected to the first sliding engagement part (601). The end of the adjusting member (3) is provided with a positioning chuck (3a), and the inner wall of the positioning chuck (3a) is fitted to the outer circumferential surface of the moving part (1). The moving part (1) has a positioning recess (102) on its outer circumferential surface, and the end of the adjusting part (3) has a positioning part (3b) that cooperates with the positioning recess (102). The positioning part (3b) is located inside the positioning recess (102).

2. The mover offset adjustment device according to claim 1, characterized in that, The fixing member (2) includes a fixing sleeve, which is sleeved on the moving part (1), and there is a gap between the inner wall of the fixing sleeve and the outer circumferential surface of the moving part (1).

3. The mover offset adjustment device according to claim 1, characterized in that, The fixing member (2) includes a fixing plate, which is a flat plate parallel to the axis of the leaf spring assembly (4), or the fixing plate is an arc-shaped plate centered on the axis of the leaf spring assembly (4).

4. The mover offset adjustment device according to claim 1, characterized in that, 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 and cooperates with the threaded hole.

5. The mover offset adjustment device according to claim 1, characterized in that, The adjusting component (3) includes a telescopic rod, one end of which is fixed to the inner wall of the fixing component (2), and the other end is fixedly connected to or abuts against the outer circumferential surface of the moving part (1).

6. The mover offset adjustment device according to claim 2, characterized in that, The number of the adjusting members (3) is multiple, and the multiple adjusting members (3) are arranged at intervals along the circumference of the fixing member (2), or at least two of the adjusting members (3) are spaced apart in the direction along the axis of the fixing member (2).

7. A linear motor, characterized in that, Includes the mover offset adjustment device as described in any one of claims 1-6.

8. A linear compressor, characterized in that, Includes the linear motor as described in claim 7.

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