Protective device for connecting terminal of refrigerator compressor

Abstract

The utility model relates to a protective device for a wiring terminal of a refrigerator compressor, and belongs to the technical field of refrigerator compressors. During specific assembly, the first mounting block is inserted into the first horizontal clamping groove, the second mounting block is inserted into the second horizontal clamping groove, the first bayonet is in clamping fit with the buckle limiting part of the elastic buckle, and the second bayonet is in clamping fit with the limiting buckle; the limiting block is inserted into the limiting groove in the axis direction of the limiting groove, so that installation and fixation of the protection cover are completed, and use of screws or snap springs is completely avoided. According to the utility model, multi-dimensional limiting constraint can be formed, the overall structure is stable and reliable, the protective cover is not easy to loosen and fall off, and the electrical safety and reliability are improved; and meanwhile, independently arranged connecting fasteners (snap springs or screws) are reduced, the working efficiency is improved, and the economic benefits are also improved.

Description

Technical Field

[0001] This utility model relates to a protective device for the wiring terminals of a refrigerator compressor, belonging to the field of refrigerator compressor technology. Background Technology

[0002] Current refrigerator compressors typically have a protective cover fixedly mounted on the outside to cover components such as wiring terminals, effectively providing protection. Specifically, the protective bracket usually includes a vertically arranged mounting base with mounting holes in the center corresponding to the wiring terminals on the compressor body. The protective cover has cable outlets for leading out the compressor's power cord and grounding wire. The protective bracket is pre-fixed to the compressor body. After the compressor's power cord and grounding wire are connected, the protective cover is then fixedly installed on the protective bracket. The protective bracket and protective cover together form a sealed junction box for effective protection. A conventional solution is to use a retaining spring to fix the protective cover to the protective bracket. However, because retaining springs are soft and easily deformed, they are prone to deformation during assembly, transportation, and disassembly, failing to effectively secure the protective cover to the protective bracket. This can easily lead to the protective cover loosening or falling off, creating a safety hazard. Furthermore, assembling and disassembling retaining springs requires a significant amount of time, affecting work efficiency.

[0003] Furthermore, Chinese patent document CN206770167U discloses a compressor, comprising: a housing with an exhaust pipe and an intake pipe, and a nameplate and terminals on the outer peripheral wall of the housing; and a wiring assembly including a terminal box, a wire clamp, and a terminal cover. The terminal box is fixed to the outer peripheral wall of the housing, and the mounting opening of the terminal box is located on the same side of the housing as the nameplate. The wire clamp is disposed on the terminal box and has a wire clamping groove for clamping wires connected to the terminals. The terminal cover is disposed on the terminal box to cover the mounting opening. The terminal cover and the terminal box are connected and fixed by a combination of screw connection structure and snap-fit ​​connection structure. The disadvantage of this assembly method is that one or more screws are required to ensure the reliability of the connection structure, and the disassembly and assembly efficiency needs to be further improved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a protective device for the wiring terminals of a refrigerator compressor, which has the advantages of convenient disassembly and assembly and a stable structure.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a refrigerator compressor terminal protection device, including a compressor body, a protective bracket, and a protective cover; the compressor body is fixedly provided with terminals, the protective bracket includes a vertically arranged mounting base plate, the mounting base plate has mounting holes in the middle corresponding to the terminals on the compressor body, the protective cover is provided with a cable outlet, the protective bracket is fixedly mounted on the compressor body, the protective cover is detachably fixedly mounted on the protective bracket, the protective bracket and the protective cover are combined to form a sealed junction box, the protective cover includes a box body, the front side of the box body is an opening structure for connecting the protective bracket, the left inner wall of the box body is provided with a first horizontal groove, the right inner wall of the box body is provided with a second horizontal groove, the first horizontal groove and the second horizontal groove are both arranged in a direction perpendicular to the mounting base plate, the inner cavity of the box body is fixedly provided with an elastic buckle in the right area of ​​the first horizontal groove, the elastic buckle includes a buckle arm fixed as a whole and a buckle limiting part, the buckle arm and the first horizontal groove are arranged opposite to each other, the buckle... The limiting part is located at one end of the latching arm near the front end of the box body and extends towards the side near the first horizontal latching groove. A viewing window for removing the protective cover is provided on the left side wall of the box body in the area opposite to the latching limiting part of the elastic latch. A limiting latch is fixedly provided on the inner wall of the side of the second horizontal latching groove facing the inner cavity of the box body. A first mounting block is fixedly provided on the side of the mounting base near the protective cover at a position corresponding to the first horizontal latching groove, and a second mounting block is fixedly provided at a position corresponding to the second horizontal latching groove. The upper part is provided with a first latch, and the second mounting block is provided with a second latch; the first mounting block is located in the first horizontal slot and the first latch is engaged with the latching and limiting part of the elastic buckle; the second mounting block is located in the second horizontal slot and the second latch is engaged with the limiting buckle; a number of sets of mutually cooperating limiting grooves and limiting blocks are provided between the inner cavity of the box and the mounting base plate. The axis of the limiting grooves extends in a direction perpendicular to the mounting base plate, and the limiting blocks are used to be inserted into the limiting grooves along the axial direction of the limiting grooves.

[0006] More preferably, the portion between the side of the first latch near the insertion end of the first mounting block and the end face of the insertion end of the first mounting block is the first engaging side, and the portion between the side of the second latch near the insertion end of the second mounting block and the end face of the insertion end of the second mounting block is the second engaging side. A first engaging groove is formed between the latching limiting portion of the elastic buckle and the rear end face of the first horizontal groove, and a second engaging groove is formed between the limiting buckle and the rear end face of the second horizontal groove. The first engaging groove is used to limit the first engaging side, and the second engaging groove is used to limit the second engaging side.

[0007] Further preferably, the latching arm of the elastic latch is fixedly connected to the rear inner wall of the box body and extends along a direction perpendicular to the mounting base plate; the latching arm of the elastic latch is provided with a first reinforcing rib on the side away from the first horizontal latching groove, and the extension direction of the first reinforcing rib is consistent with the extension direction of the latching arm; a second reinforcing rib is provided around the outer edge of the viewing window on the left outer wall of the box body.

[0008] A further preferred embodiment is that the first mounting block and the second mounting block are symmetrically distributed from left to right.

[0009] A further preferred embodiment is that the left side of the inner cavity of the box has at least two limiting grooves arranged vertically at intervals, the right side of the inner cavity of the box has at least two limiting grooves arranged vertically at intervals, and the mounting base plate is fixedly provided with limiting blocks at positions corresponding to the limiting grooves.

[0010] A further preferred embodiment is that the top of the mounting substrate has a top flange, the free end of the top flange is inserted into the box body, and the upper surface of the free end of the top flange is in contact with or forms a gap fit with the top inner wall of the box body.

[0011] A further preferred embodiment is that: at least two first blocks are fixedly provided on the inner wall of the top of the box, and the front end face of the first block is used to limit the free end face of the top flange; at least two second blocks are fixedly provided on the inner wall of the bottom of the box, and the front end face of the second block is used to limit the outer surface of the mounting substrate facing the box.

[0012] A further preferred embodiment includes a compressor power cord, a grounding wire, and a grounding screw. A grounding block is fixedly installed on the outer surface of the mounting base facing the housing. The grounding block has a grounding screw mounting threaded hole. One end of the grounding wire is fixed to the grounding block by the cooperation of the grounding screw and the grounding screw mounting threaded hole. One end of the compressor power cord is installed on the terminal block of the compressor body through a wire harness block. The cable outlet is located at the bottom or side of the housing, and the compressor power cord and the grounding wire are led out from the cable outlet. A third reinforcing rib is provided around the cable outlet.

[0013] A further preferred embodiment is that the mounting base plate has multiple solder points, which are then welded and fixed to the compressor body.

[0014] Further preferably, at least four solder joints are provided, and the solder joints are symmetrically distributed with respect to the vertical plane containing the axis of the mounting hole, with solder joints provided at the upper and lower positions of the mounting substrate.

[0015] The beneficial effects of this utility model are as follows: During assembly, it is only necessary to align the first mounting block with the first horizontal slot and insert it, and align the second mounting block with the second horizontal slot and insert it, so that the first latch and the latch limiting part of the elastic buckle form a latching engagement, and the second latch and the limiting buckle form a latching engagement. At the same time, the limiting block is inserted into the limiting groove along the axis of the limiting groove, thus completing the installation and fixing of the protective cover, completely avoiding the use of screws or snap rings. During disassembly, a tool smaller than the viewing window is used to insert through the viewing window and press against the latch limiting part of the elastic buckle to disengage it from the first latch. Then, the protective cover is slightly wiggled to disengage the limiting buckle from the second latch, and the protective cover can then be removed from the protective bracket. The first snap-fit ​​of this utility model engages with the snap-fit ​​limiting part of the elastic snap-fit, and the second snap-fit ​​engages with the limiting snap-fit. The limiting block is inserted into the limiting groove, which can form a multi-dimensional limiting constraint. The overall structure is stable and reliable, and the protective cover is not easy to loosen or fall off, thus improving electrical safety and reliability. At the same time, it reduces the number of independently set connecting fasteners (spring clips or screws), improves work efficiency, and also improves economic benefits. Attached Figure Description

[0016] Figure 1 This is an exploded structural diagram of the overall structure of this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the protective cover in this utility model.

[0018] Figure 3 yes Figure 2 The protective cover shown is a three-dimensional structural diagram from another perspective (mainly showing structures such as the second horizontal slot).

[0019] Figure 4 yes Figure 2 The protective cover shown is a front view.

[0020] Figure 5 yes Figure 4 AA view.

[0021] Figure 6 yes Figure 4 BB view.

[0022] Figure 7 yes Figure 4 The left view.

[0023] Figure 8 This is a three-dimensional structural diagram of the protective bracket in this utility model.

[0024] Figure 9 yes Figure 8 The front view of the protective bracket shown.

[0025] Figure 10yes Figure 9 The left view.

[0026] Figure 11 yes Figure 9 The right view.

[0027] Component markings in the diagram: Compressor body 1, Protective bracket 2, Protective cover 3, Compressor power cord 4, Grounding wire 5, Grounding screw 6, Terminal block 11, Top flange 21, First mounting block 22, First latch 221, First engaging side 222, Second mounting block 23, Second latch 231, Second engaging side 232, Grounding block 24, Grounding screw mounting threaded hole 241, First limiting block 25, Second limiting block 26, Third limiting block 27, Fourth limiting block 28, Installation The substrate 29 includes a mounting hole 291, a solder joint 292, a first stop 31, a first horizontal slot 32, an elastic buckle 321, a rear end face of the first slot 322, a viewing window 323, a first reinforcing rib 324, a second reinforcing rib 325, a second horizontal slot 33, a limiting buckle 331, a rear end face of the second slot 332, a cable outlet 34, a third reinforcing rib 341, a first limiting groove 35, a second limiting groove 36, a third limiting groove 37, a fourth limiting groove 38, and a second stop 39. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] like Figures 1 to 11 As shown, this utility model includes a compressor body 1, a protective bracket 2, and a protective cover 3. A terminal block 11 is fixedly mounted on the compressor body 1. The protective bracket 2 includes a vertically arranged mounting base plate 29, with a mounting hole 291 in the center corresponding to the terminal block 11 on the compressor body 1. The protective cover 3 has a cable outlet 34. The protective bracket 2 is fixedly mounted on the compressor body 1, and the protective cover 3 is detachably fixedly mounted on the protective bracket 2. The protective bracket 2 and the protective cover 3 together constitute a sealed junction box. The term "sealed junction box" should be interpreted broadly; it means that after the protective bracket 2 and the protective cover 3 are properly connected, the sealed junction box is kept as closed as possible to effectively protect the internal structure of the protective bracket 2 and the protective cover 3.

[0030] The main structure of the protective cover 3 in this utility model is a box with an opening on one side. To facilitate understanding of the specific technical solution of this utility model, this utility model is described with the opening structure of the protective cover 3 located on the front of the box (that is, the front side of the box is an opening structure for connecting the protective bracket 2). It can be understood that in specific implementation, the left, right and other orientations can be interchanged. A first horizontal groove 32 is provided on the left inner wall of the box body, and a second horizontal groove 33 is provided on the right inner wall of the box body. Both the first horizontal groove 32 and the second horizontal groove 33 extend in a direction perpendicular to the mounting base plate 29. An elastic buckle 321 is fixedly provided in the inner cavity of the box body in the right region of the first horizontal groove 32. The elastic buckle 321 includes a buckle arm and a buckle limiting part fixed as a whole. The buckle arm and the first horizontal groove 32 are arranged opposite to each other. The buckle limiting part is located at the end of the buckle arm near the front end face of the box body and extends towards the side near the first horizontal groove 32. A viewing window 323 for removing the protective cover 3 is provided on the left side wall of the box body in the region opposite to the buckle limiting part of the elastic buckle 321. A limiting buckle 331 is fixedly provided on the inner wall of the second horizontal groove 33 facing the inner cavity of the box body. On the side of plate 29 near protective cover 3, a first mounting block 22 is fixedly provided at a position corresponding to the first horizontal slot 32, and a second mounting block 23 is fixedly provided at a position corresponding to the second horizontal slot 33. The first mounting block 22 is provided with a first latch 221, and the second mounting block 23 is provided with a second latch 231. The first mounting block 22 is located in the first horizontal slot 32, and the first latch 221 is engaged with the latching limiting part of the elastic buckle 321. The second mounting block 23 is located in the second horizontal slot 33, and the second latch 231 is engaged with the limiting buckle 331. Several sets of mutually cooperating limiting slots and limiting blocks are provided between the inner cavity of the box and the mounting base plate 29. The axis of the limiting slots extends along a direction perpendicular to the mounting base plate 29, and the limiting blocks are used to be inserted into the limiting slots along the axial direction of the limiting slots. During assembly, simply align the first mounting block 22 with the first horizontal slot 32 and insert it, and align the second mounting block 23 with the second horizontal slot 33 and insert it, ensuring that the first latch 221 engages with the latching limit part of the elastic buckle 321, and the second latch 231 engages with the limiting buckle 331. Simultaneously, the limiting block is inserted into the limiting groove along its axial direction. This completes the installation and fixation of the protective cover 3, completely avoiding the use of screws or retaining rings. For disassembly, use a tool smaller than the viewing window 323, insert it into the viewing window 323, and press against the latching limit part of the elastic buckle 321, disengaging it from the first latch 221. Then, slightly wiggle the protective cover 3 to disengage the limiting buckle 331 from the second latch 231, allowing the protective cover 3 to be removed from the protective bracket 2.It should be noted that the "elastic buckle 321" is self-explanatory; it possesses a certain degree of elastic deformation capability. Therefore, during assembly, the elastic deformation of the elastic buckle 321 enables the specific snap-fit ​​structure. During disassembly, the elastic deformation of the elastic buckle 321 simultaneously disengages the snap-fit ​​limiting part of the elastic buckle 321 from the first latch 221. The "limiting buckle 331" can typically be a rigid clip. In practice, it is sufficient that the snap-fit ​​structure between the protective cover 3 and the protective bracket 2 has a suitable fit gap in the left-right direction. While the first latch 221 and the snap-fit ​​limiting part of the elastic buckle 321 are engaged, gently swinging the protective cover 3 in the left-right direction will allow the second latch 231 to simultaneously engage with the limiting buckle 331.

[0031] In a preferred embodiment, to further increase the connection reliability between the protective cover 3 and the protective bracket 2, the portion of the first latch 221 near the insertion end of the first mounting block 22 and the end face of the insertion end of the first mounting block 22 is the first engaging side 222; the portion of the second latch 231 near the insertion end of the second mounting block 23 and the end face of the insertion end of the second mounting block 23 is the second engaging side 232. A first engaging groove is formed between the latching limiting portion of the elastic latch 321 and the rear end face of the first horizontal latch 32 (i.e., the rear end face 322 of the first latch shown in the figure); a second engaging groove is formed between the limiting latch 331 and the rear end face of the second horizontal latch 33 (i.e., the rear end face 332 of the second latch shown in the figure). The first engaging groove serves to limit the first engaging side 222, and the second engaging groove serves to limit the second engaging side 232. The width values ​​of the first engaging groove and the second engaging groove in the front-rear direction of the box body are (…). Figure 5 Marked as "D") according to the width dimension corresponding to the first engaging side 222 and the second engaging side 232 in this direction ( Figure 10 The design can be carried out reasonably by marking "d" in the middle. Generally, D = d + 0.3mm, which means that after the protective cover 3 is assembled, the first engaging side 222 and the second engaging side 232 have a movement space of 0.3mm in the insertion direction when the protective cover 3 is assembled.

[0032] In a preferred embodiment, to ensure a simple and reliable structure, the latching arm of the elastic latch 321 is fixedly connected to the rear inner wall of the box and extends along a direction perpendicular to the mounting base plate 29. A first reinforcing rib 324 is provided on the side of the latching arm away from the first horizontal slot 32, and the extension direction of the first reinforcing rib 324 is consistent with the extension direction of the latching arm. A second reinforcing rib 325 is provided around the outer edge of the viewing window 323 on the left outer wall of the box. In some alternative embodiments, the latching arm of the elastic latch 321 may also be connected to the left inner wall of the box using a non-linear structure. The first reinforcing rib 324 mainly serves to adjust the elastic deformation capability of the latching arm, ensuring the reliability of its structure. The second reinforcing rib 325 serves to improve the strength of the opening position of the viewing window 323.

[0033] In the preferred embodiment, to make the structure simple, reliable and easy to assemble, the first mounting block 22 and the second mounting block 23 are symmetrically distributed from left to right.

[0034] In a preferred embodiment, to ensure a simple and reliable structure and further enhance the connection reliability between the protective cover 3 and the protective bracket 2, the left side of the inner cavity of the box has at least two limiting grooves arranged vertically at intervals, and the right side of the inner cavity of the box has at least two limiting grooves arranged vertically at intervals. The mounting base plate 29 is fixedly provided with limiting blocks at positions corresponding to the limiting grooves. In the embodiment shown in the attached drawings, a total of four limiting grooves and four limiting blocks are designed. The four limiting grooves are the first limiting groove 35, the second limiting groove 36, the third limiting groove 37, and the fourth limiting groove 38, and the four limiting blocks are the first limiting block 25, the second limiting block 26, the third limiting block 27, and the fourth limiting block 28.

[0035] In the preferred embodiment, in order to make the structure simple and reliable and to fully guarantee the sealing performance between the protective cover 3 and the protective bracket 2 at the top position, the top of the mounting base 29 has a top flange 21, the free end of the top flange 21 is inserted into the box, and the upper surface of the free end of the top flange 21 is in contact with or forms a gap fit with the top inner wall of the box.

[0036] In the preferred embodiment, to make the structure simple and reliable and further increase the connection reliability between the protective cover 3 and the protective bracket 2, at least two first blocks 31 are fixedly provided on the inner wall of the top of the box. The front end face of the first block 31 is used to limit the free end face of the top flange 21. At least two second blocks 39 are fixedly provided on the inner wall of the bottom of the box. The front end face of the second block 39 is used to limit the outer surface of the mounting base plate 29 facing the box.

[0037] In specific implementation, this utility model generally also includes a compressor power cord 4, a grounding wire 5, and a grounding screw 6. In a preferred embodiment, to make the structure simple, reliable, and easy to assemble, a grounding block 24 is fixedly provided on the outer surface of the mounting base 29 facing the box. The grounding block 24 is provided with a grounding screw mounting threaded hole 241. One end of the grounding wire 5 is fixedly provided on the grounding block 24 by the cooperation of the grounding screw 6 and the grounding screw mounting threaded hole 241. One end of the compressor power cord 4 is installed on the terminal block 11 of the compressor body 1 through the wire harness block. The cable outlet 34 is provided at the bottom or side of the box. The compressor power cord 4 and the grounding wire 5 are led out from the cable outlet 34. A third reinforcing rib 341 is provided around the cable outlet 34.

[0038] In a preferred embodiment, to facilitate processing and assembly, the mounting base plate 29 is provided with a plurality of solder points 292, and is fixed to the compressor body 1 by welding through the solder points 292.

[0039] To better ensure the reliability of the connection between the protective bracket 2 and the compressor body 1, at least four solder points 292 are provided. The solder points 292 are symmetrically distributed with respect to the vertical plane containing the axis of the mounting wiring hole 291, and solder points 292 are provided at the upper and lower positions of the mounting base plate 29.

[0040] In the preferred embodiment, the top flange 21, the first mounting block 22, the second mounting block 23, the grounding block 24, the first limiting block 25, the second limiting block 26, the third limiting block 27, and the fourth limiting block 28 in the protective bracket 2 can all adopt an integrated structure design relative to the mounting base plate 29. Specifically, it can be formed by stamping or by machining.

[0041] In a preferred embodiment of this utility model, the specific installation method is as follows: The protective bracket 2 is welded and fixed to the outside of the compressor body 1 through four welding points 292; one end of the compressor power cord 4 is installed on the terminal 11 of the compressor body 1 through a wire harness block, and one end of the grounding wire 5 is fixed to the grounding block 24 through the cooperation of the grounding screw 6 and the grounding screw mounting thread hole 241; then the protective cover 3 is snapped and fixed on the protective bracket 2, so that the compressor power cord 4 and the grounding wire 5 are led out from the cable outlet 34. During disassembly, a tool smaller than the size of the viewing window 323 is used to insert into the viewing window 323 and press against the snap-limiting part of the elastic buckle 321 to disengage it from the first snap 221. Then, the protective cover 3 is slightly wiggled to disengage the limiting snap 331 from the second snap 231, and the protective cover 3 can be removed from the protective bracket 2.

[0042] In this embodiment, the protective cover 3 and the protective bracket 2 are directly fixed to the corresponding two slots (first slot 221 and second slot 231) by elastic buckle 321 and limiting buckle 331 respectively, and are not easy to pull out, which improves the firmness of the protective cover assembly. At the same time, it eliminates the step of spring clip assembly or screw fastening in the existing solution, thus improving the assembly efficiency. Furthermore, the four limiting blocks (first limiting block 25, second limiting block 26, third limiting block 27, and fourth limiting block 28) on the protective bracket 2 are inserted one-to-one into the four limiting slots (first limiting slot 35, second limiting slot 36, third limiting slot 37, and fourth limiting slot 38) on the protective cover 3. In addition, the latching edges (first engaging side 222 and second engaging side 232) on the mounting blocks on both sides of the protective bracket 2 are respectively embedded in the latching limiting part of the elastic buckle 321 to form a first engaging slot between the buckle limiting part and the rear end face 322 of the first slot, and in a second engaging slot between the limiting buckle 331 and the rear end face 332 of the second slot. In this way, the protective cover 3 is subject to multiple limiting constraints. When the protective cover 3 is subjected to an impact from any direction, it is effectively guaranteed that the protective cover 3 will not fall off, further improving the installation firmness of the protective cover 3, thereby providing better protection for the wiring terminal 11 and improving the electrical safety and reliability of the compressor. At the same time, it is easy to disassemble and improves work efficiency.

[0043] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

Claims

1. A protective device for the wiring terminals of a refrigerator compressor, comprising a compressor body (1), a protective bracket (2), and a protective cover (3); the compressor body (1) is fixedly provided with wiring terminals (11), the protective bracket (2) includes a vertically arranged mounting base plate (29), the mounting base plate (29) has mounting holes (291) in the middle corresponding to the wiring terminals (11) on the compressor body (1), the protective cover (3) is provided with a cable outlet (34), the protective bracket (2) is fixedly disposed on the compressor body (1), the protective cover (3) is detachably fixedly disposed on the protective bracket (2), and the protective bracket (2) and the protective cover (3) together constitute a sealed junction box, characterized in that: The protective cover (3) includes a housing. The front side of the housing has an opening structure for docking with the protective bracket (2). A first horizontal groove (32) is provided on the left inner wall of the housing, and a second horizontal groove (33) is provided on the right inner wall of the housing. Both the first horizontal groove (32) and the second horizontal groove (33) extend in a direction perpendicular to the mounting base plate (29). An elastic buckle (321) is fixedly provided in the inner cavity of the housing in the area to the right of the first horizontal groove (32). The elastic buckle (321) includes... The latching arm and latching limiting part are fixed as a whole. The latching arm and the first horizontal latching groove (32) are arranged opposite to each other. The latching limiting part is located at the end of the latching arm near the front end face of the box body and extends towards the side near the first horizontal latching groove (32). The left side wall of the box body is provided with a viewing window (323) for disassembling the protective cover (3) in the area opposite to the latching limiting part of the elastic latch (321). A limiting latch (331) is fixedly provided on the inner wall of the second horizontal latching groove (33) facing the inner cavity of the box body. On the side of the mounting base (29) near the protective cover (3), a first mounting block (22) is fixedly provided at a position corresponding to the first horizontal slot (32), and a second mounting block (23) is fixedly provided at a position corresponding to the second horizontal slot (33). The first mounting block (22) is provided with a first latch (221), and the second mounting block (23) is provided with a second latch (231). The first mounting block (22) is located in the first horizontal slot (32) and the first latch (221) is engaged with the latching limit part of the elastic buckle (321). The second mounting block (23) is located in the second horizontal slot (33) and the second latch (231) is engaged with the limiting buckle (331). Several sets of mutually cooperating limiting grooves and limiting blocks are provided between the inner cavity of the box and the mounting base plate (29). The axis of the limiting groove extends along a direction perpendicular to the mounting base plate (29), and the limiting block is used to be inserted into the limiting groove along the axis of the limiting groove.

2. The refrigerator compressor terminal protection device as described in claim 1, characterized in that: The first latch (221) is located between the side of the first mounting block (22) near the insertion end and the end face of the insertion end of the first mounting block (22), forming the first engaging side (222). The second latch (231) is located between the side of the second mounting block (23) near the insertion end and the end face of the insertion end of the second mounting block (23), forming the second engaging side (232). The latching limit part of the elastic buckle (321) forms a first engaging groove between the rear end face of the first horizontal groove (32), and the limiting buckle (331) forms a second engaging groove between the rear end face of the second horizontal groove (33). The first engaging groove is used to limit the first engaging side (222), and the second engaging groove is used to limit the second engaging side (232).

3. The refrigerator compressor terminal protection device as described in claim 1, characterized in that: The latch arm of the elastic latch (321) is fixedly connected to the rear inner wall of the box and extends along a direction perpendicular to the mounting base plate (29); the latch arm of the elastic latch (321) is provided with a first reinforcing rib (324) on the side away from the first horizontal latch groove (32), and the extension direction of the first reinforcing rib (324) is consistent with the extension direction of the latch arm; a second reinforcing rib (325) is provided around the outer edge of the viewing window (323) on the left outer wall of the box.

4. The refrigerator compressor terminal protection device as described in claim 1, characterized in that: The first mounting block (22) and the second mounting block (23) are symmetrically distributed from left to right.

5. The refrigerator compressor terminal protection device as described in claim 1, characterized in that: The inner cavity of the box has at least two limiting grooves arranged vertically on the left side and at least two limiting grooves arranged vertically on the right side. The mounting base (29) is fixedly provided with limiting blocks at positions corresponding to the limiting grooves.

6. The refrigerator compressor terminal protection device as described in claim 1, characterized in that: The mounting base (29) has a top flange (21) at the top. The free end of the top flange (21) is inserted into the box body, and the upper surface of the free end of the top flange (21) is in contact with or forms a gap fit with the inner wall of the top of the box body.

7. The refrigerator compressor terminal protection device as described in claim 6, characterized in that: At least two first blocks (31) are fixedly provided on the inner wall of the top of the box. The front end face of the first block (31) is used to limit the free end face of the top flange (21). At least two second blocks (39) are fixedly provided on the inner wall of the bottom of the box. The front end face of the second block (39) is used to limit the outer surface of the mounting base plate (29) facing the box.

8. The refrigerator compressor terminal protection device as described in claim 1, characterized in that: The device includes a compressor power cord (4), a grounding wire (5), and a grounding screw (6). A grounding block (24) is fixedly installed on the outer surface of the mounting base (29) facing the box. A grounding screw mounting thread hole (241) is provided on the grounding block (24). One end of the grounding wire (5) is fixed on the grounding block (24) by the cooperation of the grounding screw (6) and the grounding screw mounting thread hole (241). One end of the compressor power cord (4) is installed on the terminal (11) of the compressor body (1) through the wire harness block. The cable outlet (34) is located at the bottom or side of the box. The compressor power cord (4) and the grounding wire (5) are led out from the cable outlet (34). A third reinforcing rib (341) is provided around the cable outlet (34).

9. The refrigerator compressor terminal protection device as described in any one of claims 1 to 8, characterized in that: The mounting base plate (29) has multiple solder points (292) and is fixed to the compressor body (1) by welding through the solder points (292).

10. The refrigerator compressor terminal protection device as described in claim 9, characterized in that: There are at least four solder joints (292). The solder joints (292) are symmetrically distributed in the vertical plane relative to the axis of the mounting wiring hole (291). Solder joints (292) are provided at the upper and lower positions of the mounting base plate (29).

Images