Plate spring assembly energized threading structure, linear motor and linear compressor

Abstract

The present disclosure relates to the technical field of compressors, in particular to a wire threading structure for energizing a plate spring assembly, a linear motor and a linear compressor. The wire threading structure comprises a first wire threading channel opened along the axial direction of the plate spring assembly and a wire threaded in the first wire threading channel. The number of the wires is two, and the two wires are respectively electrically connected with two plate springs of the plate spring assembly. The wires are electrically connected with the plate springs through the first wire threading channel on the plate spring assembly, so as to realize the energization of the inner ring of the plate spring. The connection between the wires and the plate springs is more simple and convenient, and the structural strength of the plate spring itself is not affected. Moreover, the disassembly of the wires and the plate springs can be realized by pulling out the wires from the first wire threading channel. When the plate spring or the wire is damaged, the replacement is more convenient, thereby ensuring the reliability of the plate spring operation.

Description

Technical Field

[0001] This disclosure relates to the field of compressor technology, and more particularly to a wire-threading structure for energizing a leaf spring assembly, a linear motor, and a linear compressor. Background Technology

[0002] Linear compressors are piston compressors that utilize linear motors. They have advantages such as compact structure, light weight, oil-free or low-lubricating oil operation, and excellent variable capacity characteristics. As a result, they are being used more and more widely and have become a major development direction for high-efficiency compressors in small refrigeration units.

[0003] A linear motor consists of a stator and a mover. The mover performs linear reciprocating motion along the axial direction. The moving-coil linear motor is a widely used structural form. The moving part of a moving-coil linear motor is an energized coil. The stator can be energized by an excitation coil or a permanent magnet, with permanent magnets being more commonly used now. During operation, the permanent magnet and the iron core form a stable radial magnetic field in the annular air gap between the inner and outer iron cores. The coil is located in the magnetic gap and generates an axial electromagnetic force when energized. When the current is alternating current, the electromagnetic force on the coil changes direction accordingly, thereby driving the piston to perform axial reciprocating motion, compressing and expanding the working gas to do work.

[0004] When a leaf spring assembly serves as a support structure, it also functions as part of the coil circuit due to its own conductivity. In the prior art, the ends of the coils are partially welded to the side of the leaf spring to electrically connect the leaf spring to the wires. However, this method causes the ends of the wires to protrude outwards from the side of the leaf spring, resulting in irregular gaps between the contact surfaces of the multi-layer leaf spring assembly fitted on the mover. This not only affects the movement of the mover and the flatness of the leaf spring installation, but also affects the operational reliability of the leaf spring. Summary of the Invention

[0005] To solve the above-mentioned technical problems, or at least partially solve them, this disclosure provides a wire-threading structure for energizing a leaf spring assembly, a linear motor, and a linear compressor.

[0006] This disclosure provides a wiring structure for energizing a leaf spring assembly, including a first wiring channel opened along the axial direction of the leaf spring assembly and two wires passing through the first wiring channel. The two wires are electrically connected to the two leaf springs of the leaf spring assembly, respectively.

[0007] Optionally, the number of the first wiring channels is one, and the two wires are threaded through one of the first wiring channels; or the number of the first wiring channels is multiple, and the two wires are respectively threaded through one of the first wiring channels.

[0008] Optionally, the leaf spring assembly includes multiple washers and multiple leaf springs, with the multiple washers arranged in parallel and at least one leaf spring between any two adjacent washers; the first threading channel includes a first threading hole on the leaf spring and a second threading hole on the washer, with the second threading hole and the first threading hole being coaxially arranged.

[0009] Optionally, it also includes an insulating sleeve, on which the leaf spring assembly is sleeved.

[0010] Optionally, the first threading hole is disposed between the inner ends of two adjacent vortex grooves on the leaf spring.

[0011] Optionally, the threading structure further includes conductive electrodes, and the number of conductive electrodes is two. The two conductive electrodes are respectively coaxially attached to the two leaf springs, and the two wires are respectively electrically connected to the leaf springs through the two conductive electrodes.

[0012] Optionally, the conductive electrode is provided with a central hole and a threading part for passing a wire through it. The central hole is coaxially arranged with the inner fixing hole of the leaf spring, and the threading part is coaxially arranged with the first threading hole.

[0013] Optionally, the conductive electrode includes a first fixing ring and a threading ring disposed on the outer circumferential surface of the first fixing ring. The first fixing ring has a central hole, and the threading ring has a third threading hole, which forms the threading portion.

[0014] Optionally, the threading ring has an axially recessed area on the side opposite to the leaf spring. After the wire passes through the threading ring, it is fixed to the outer circumferential surface of the first fixing ring, and the wire is housed in the recess so that the wire does not protrude from the side of the conductive electrode opposite to the leaf spring.

[0015] Optionally, the recess is disposed adjacent to the outer circumferential surface of the first fixing ring.

[0016] Optionally, the conductive electrode includes a second fixing ring, the second fixing ring having the central hole, and the second fixing ring also having a through hole arranged parallel to the central hole, the through hole being coaxially arranged with the first threading hole to form the threading portion.

[0017] Optionally, the through hole includes a limiting section and a fixing section arranged sequentially along the axial direction, and the fixing section is opened at the end of the second fixing ring away from the leaf spring. The diameter of the fixing section is larger than the diameter of the limiting section. The wire passes through the limiting section into the fixing section and is attached and fixed to the inner wall of the fixing section in the circumferential direction.

[0018] Optionally, the inner wall of the fixing section is provided with a spiral groove arranged in the circumferential direction, the groove being used to accommodate the wire and to fit and fix the wire.

[0019] Optionally, the conductive electrode includes a conductive ring, which is coaxially arranged with the leaf spring, and the wire is fixed on the outer circumferential surface of the fixed ring.

[0020] This disclosure also provides a linear motor, including the wire threading structure as described in any of the preceding embodiments.

[0021] On the other hand, embodiments of this disclosure also provide a linear compressor, including the linear motor as described above.

[0022] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0023] This disclosure provides a wiring structure for energizing a leaf spring, including a first wiring channel opened along the axial direction of the leaf spring assembly and two wires passing through the first wiring channel. The two wires are electrically connected to the two leaf springs of the leaf spring assembly, respectively. Connecting the wires to the leaf springs through the first wiring channel energizes the inner ring of the leaf springs. This not only simplifies the connection between the wires and the leaf springs without affecting the structural strength of the leaf springs themselves, but also allows for easy disassembly of the wires by simply pulling them out of the first wiring channel. This makes replacement of damaged leaf springs or wires more convenient, thereby ensuring the reliability of the leaf spring operation. Attached Figure Description

[0024] 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.

[0025] 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.

[0026] Figure 1 This is a schematic diagram of the energized structure of the leaf spring assembly described in some embodiments of this disclosure;

[0027] Figure 2 This is a front view of the conductive electrodes described in some embodiments of this disclosure;

[0028] Figure 3 This is a schematic diagram of the structure of the conductive electrode described in some embodiments of this disclosure;

[0029] Figure 4 This is a schematic diagram of the structure of the conductive electrode described in some other embodiments of this disclosure;

[0030] Figure 5 This is a front view of the conductive electrodes described in some other embodiments of this disclosure.

[0031] Among them, 1. Insulating sleeve; 2. Leaf spring assembly; 3. Conductive electrode; 4. Mover; 5. Coil frame; 20. First wire passage; 21. Leaf spring; 22. Washer; 201. First wire hole; 202. Second wire hole; 301. Third wire hole; 302. Center hole; 303. First fixing ring; 304. Wire ring; 305. Recess; 306. Second fixing ring; 307. Limiting section; 308. Fixing section. Detailed Implementation

[0032] 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.

[0033] 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.

[0034] like Figure 1 As shown in the embodiment of this disclosure, a wiring structure for energizing a leaf spring assembly includes a first wiring channel 20 opened along the axial direction of the leaf spring assembly 2 and two wires passing through the first wiring channel 20. The two wires are electrically connected to the two leaf springs 21 of the leaf spring assembly 2, respectively. In use, the wires pass through the first wiring channel 20 to supply power to the leaf springs 21. This not only makes the connection between the wires and the leaf springs 21 simpler and more convenient, without affecting the structural strength of the leaf springs 21 themselves, but also allows for disassembly of the wires and leaf springs 21 simply by pulling the wires out of the first wiring channel 20. This makes it easier to replace the leaf springs 21 or wires when they are damaged, thereby ensuring the reliability of the leaf spring operation.

[0035] Furthermore, in some embodiments of this disclosure, there is one first wire-passing channel 20, and two wires are passed through one first wire-passing channel 20. Alternatively, there are multiple first wire-passing channels 20, and two wires are each passed through one first wire-passing channel 20, that is, each of the two wires is passed through one first wire-passing channel 20 to avoid mutual interference between the two wires.

[0036] Furthermore, in some embodiments of this disclosure, the leaf spring assembly 2 is sleeved on the mover 4 and located on one side of the coil frame 5. Specifically, the leaf spring assembly 2 includes multiple washers 22 and multiple leaf springs 21. The multiple washers 22 are arranged in parallel, and at least one leaf spring 21 is provided between any two adjacent washers 22. The first wire passage 20 includes a first wire hole 201 provided on the leaf spring 21 and a second wire hole 202 provided on the washer 22. The second wire hole 202 is coaxially arranged with the first wire hole 201. In the leaf spring assembly 2, one leaf spring 21 or multiple leaf springs 21 can be sandwiched between two washers 22. The leaf spring 21 is provided with the first wire hole 201, and the washer 22 is provided with the second wire hole 202. The first wire hole 201 and the second wire hole 202 together form the first wire passage 20.

[0037] Furthermore, in some embodiments of this disclosure, an insulating sleeve 1 is also included, and the leaf spring assembly 2 is sleeved on the insulating sleeve 1. Specifically, the leaf spring 21 and the washer 22 are both provided with mounting holes at their centers, the insulating sleeve 1 is sleeved on the mover 4, and the leaf spring 21 and the washer 22 are sleeved on the outer circumferential surface of the insulating sleeve 1 through the mounting holes.

[0038] Furthermore, in some embodiments of this disclosure, the threading structure further includes two conductive electrodes 3. Each conductive electrode 3 is coaxially attached to one of the two leaf springs 21, and the two wires are electrically connected to the leaf springs 21 via the two conductive electrodes 3. The function of the conductive electrodes 3 is to better connect the wires to the leaf springs 21, increase the contact area between the leaf springs 21 and the wires, and improve the stability of the energized structure of the leaf springs 21.

[0039] Furthermore, in some embodiments of this disclosure, the conductive electrode 3 is provided with a central hole 302 and a threading portion for passing a wire. The central hole 302 is coaxially arranged with the inner fixing hole of the leaf spring 21, and the threading portion is coaxially arranged with the first threading channel 20. After the wire passes through the threading portion and the first threading channel 20, it is electrically connected to the conductive electrode 3, generally by welding. In use, the conductive electrode 3 is fixedly attached to the leaf spring 21, and the wire passes through the threading portion and is electrically connected to the conductive electrode 3. Thus, the conductive electrode 3 realizes the electrical connection between the wire and the leaf spring 21, energizing the leaf spring 21. The setting of the conductive electrode 3 increases the contact area of ​​the electrical connection between the wire and the leaf spring 21, making the energizing structure of the leaf spring 21 more stable, thereby extending the service life of the leaf spring 21 and the mover.

[0040] Furthermore, such as Figure 2 and Figure 3As shown, in some embodiments of this disclosure, the conductive electrode 3 includes a first fixing ring 303 and a threading ring 304 disposed on the outer circumferential surface of the first fixing ring 303. The first fixing ring 303 has a central hole 302, and the threading ring 304 has a third threading hole 301, which forms a threading portion. There are multiple threading rings 304, and the multiple threading rings 304 have the same function and effect.

[0041] Furthermore, in some embodiments of this disclosure, the threading ring 304 has an axially oriented recess 305 on the side facing away from the leaf spring 21. After the wire passes through the threading ring 304, it is fixed to the outer circumferential surface of the first fixing ring 303, and the wire is accommodated in the recess 305 so that the wire does not protrude from the side of the conductive electrode 3 facing away from the leaf spring 21. Specifically, the thickness of the threading ring 304 is equal to the thickness of the first fixing ring 303. The first side of the threading ring 304 is flush with the first side of the first fixing ring 303, and the first side of the threading ring 304 is flush with the second side of the first fixing ring 303. Both the first side of the first fixing ring 303 and the first side of the threading ring 304 are fitted and fixed to the leaf spring 21. The recess 305 is formed on the second side of the threading ring 304, and the bottom of the recess 305 is lower than the second side of the first fixing ring 303, so that the wire can be accommodated in the recess 305 after passing through the threading ring 304.

[0042] Furthermore, in some embodiments of this disclosure, the recess 305 is disposed adjacent to the outer circumferential surface of the first fixing ring 303. That is, the recess 305 connects the wire-threading ring 304 and the outer circumferential surface of the first fixing ring 303. Specifically, after the wire passes through the wire-threading ring 304, it directly enters the recess 305 and can extend from the recess 305 to the outer circumferential surface of the first fixing ring 303 for fixation.

[0043] Furthermore, such as Figure 4 and Figure 5 As shown, in some other embodiments of this disclosure, the conductive electrode 3 includes a second fixing ring 306, which has a central hole 302 and a through hole parallel to the central hole 302. The through hole and the first wire-passing hole are coaxially arranged to form a wire-passing portion. Specifically, the second fixing ring 306 is annular in shape, and the through hole is opened along the axial direction of the second fixing ring 306. In use, the second fixing ring 306 is sleeved on the mover 4 or the insulating sleeve 1 through the central hole. The through hole is coaxially arranged with the first wire-passing channel 20, and the wire passes through the first wire-passing channel 20 and the through hole to be electrically connected to the second fixing ring 306.

[0044] Furthermore, in some embodiments of this disclosure, the through hole includes a limiting section 307 and a fixing section 308 arranged axially in a single sequence. The fixing section 308 is located at the end of the second fixing ring 306 away from the leaf spring 21. The diameter of the fixing section 308 is larger than the diameter of the limiting section 307. The wire passes through the limiting section 307 into the fixing section 308 and is circumferentially attached and fixed to the inner wall of the fixing section 308. Attaching and fixing the wire to the inner wall of the fixing section 308 can, to a certain extent, increase the contact length between the wire and the conductive electrode 3.

[0045] Furthermore, in some embodiments of this disclosure, the inner wall of the fixing section 308 is provided with a spiral groove arranged circumferentially. The groove is used to accommodate the wire and fix it in contact with the wire. The spiral groove on the inner wall of the fixing section 308 further extends the contact length between the wire and the conductive electrode 3, and improves the connection strength between the wire and the conductive electrode 3.

[0046] Furthermore, in some other embodiments of this disclosure, the conductive electrode includes a conductive ring, which is coaxially arranged with the leaf spring, and the wire is fixed to the outer circumferential surface of the fixed ring. This conductive electrode has a simple structure with only one annular conductive structure, and the wire can be fixed to the outer circumferential surface of the conductive ring during use.

[0047] Furthermore, embodiments of this disclosure also provide a linear motor, including the wire-threading structure in any of the above embodiments.

[0048] Furthermore, embodiments of this disclosure also provide a linear compressor, including the aforementioned linear motor.

[0049] 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.

[0050] 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 wire-threading structure for energizing a leaf spring assembly, characterized in that, It includes a first wire channel (20) opened along the axial direction of the leaf spring assembly (2) and a wire passing through the first wire channel (20). The number of wires is two, and the two wires are electrically connected to the two leaf springs (21) of the leaf spring assembly (2). The leaf spring assembly (2) includes multiple washers (22) and multiple leaf springs (21). The multiple washers (22) are arranged in parallel, and at least one leaf spring (21) is provided between any two adjacent washers (22). The first threading channel (20) includes a first threading hole (201) provided on the leaf spring (21) and a second threading hole (202) provided on the washers (22). The second threading hole (202) is coaxially arranged with the first threading hole (201). The first threading hole (201) is located between the inner ends of two adjacent vortex grooves on the leaf spring (21).

2. The wire threading structure for energizing the leaf spring assembly according to claim 1, characterized in that, The number of the first wire-threading channel (20) is one, and the two wires are threaded through one of the first wire-threading channels (20); or the number of the first wire-threading channels (20) is multiple, and the two wires are respectively threaded through one of the first wire-threading channels (20).

3. The wire-threading structure for energizing the leaf spring assembly according to claim 1, characterized in that, It also includes an insulating sleeve (1), on which the leaf spring assembly (2) is sleeved.

4. The wire-threading structure for energizing the leaf spring assembly according to any one of claims 1-3, characterized in that, The threading structure also includes conductive electrodes (3), and there are two conductive electrodes (3). The two conductive electrodes (3) are coaxially attached to the two leaf springs (21) respectively, and the two wires are electrically connected to the leaf springs (21) through the two conductive electrodes (3) respectively.

5. The wire-threading structure for energizing the leaf spring assembly according to claim 4, characterized in that, The conductive electrode (3) is provided with a central hole (302) and a threading part for threading wires. The central hole (302) is coaxially arranged with the inner fixing hole of the leaf spring (21), and the threading part is coaxially arranged with the first threading channel (20).

6. The wire-threading structure for energizing the leaf spring assembly according to claim 5, characterized in that, The conductive electrode (3) includes a first fixing ring (303) and a threading ring (304) disposed on the outer circumferential surface of the first fixing ring (303). The first fixing ring (303) is provided with the central hole (302), and the threading ring (304) is provided with a third threading hole (301). The third threading hole (301) forms the threading part.

7. The wire-threading structure for energizing the leaf spring assembly according to claim 6, characterized in that, The threading ring (304) has an axially oriented recess (305) on the side away from the leaf spring (21). After the wire passes through the threading ring (304), it is fixed to the outer circumferential surface of the first fixing ring (303), and the wire is housed in the recess (305) so that the wire does not protrude from the side of the conductive electrode (3) away from the leaf spring (21).

8. The wire-threading structure for energizing the leaf spring assembly according to claim 7, characterized in that, The recess (305) is disposed adjacent to the outer circumferential surface of the first fixing ring (303).

9. The wire-threading structure for energizing the leaf spring assembly according to claim 5, characterized in that, The conductive electrode (3) includes a second fixing ring (306), the second fixing ring (306) is provided with the center hole (302), and the second fixing ring (306) is also provided with a through hole arranged parallel to the center hole (302). The through hole is coaxially arranged with the first threading channel (20) to form the threading part.

10. The wire-threading structure for energizing the leaf spring assembly according to claim 9, characterized in that, The through hole includes a limiting section (307) and a fixing section (308) arranged sequentially along the axial direction. The fixing section (308) is located at the end of the second fixing ring (306) away from the leaf spring (21). The diameter of the fixing section (308) is larger than the diameter of the limiting section (307). The wire passes through the limiting section (307) into the fixing section (308) and is circumferentially attached and fixed to the inner wall of the fixing section (308).

11. The wire-threading structure for energizing the spring assembly according to claim 10, characterized in that, The inner wall of the fixed section (308) is provided with a spiral groove arranged in the circumferential direction. The groove is used to accommodate the wire and fit and fix it to the wire.

12. The wire-threading structure for energizing the spring assembly according to claim 4, characterized in that, The conductive electrode includes a conductive ring, which is coaxially arranged with the leaf spring, and the wire is fixed to the outer circumferential surface of the conductive ring.

13. A linear motor, characterized in that, Includes the threading structure as described in any one of claims 1-12.

14. A linear compressor, characterized in that, Including the linear motor as described in claim 13.

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