Mounting structure for electric control box of refrigerator compressor

Abstract

The utility model relates to a refrigerator compressor electric control box installation structure, and belongs to the technical field of refrigerator compressors. According to the utility model, the mounting bracket and the front cover of the electric control box are matched, positioned and connected; at least one clamping buckle can be arranged between a bending inclined plate at the top of the mounting bracket and a limiting plate at the top of the front cover and between a clamping buckle bending edge arranged on a first clamping buckle of the mounting bracket and a first vertical limiting groove in the bottom area of the front cover; a vertical mounting groove formed in the area where the side end face of the support bottom baffle on the mounting support is located can be in multi-dimensional limiting fit with the front cover mounting plate. In addition, multi-dimensional limiting cooperation can be further formed between a clamping installation groove formed in a second buckle at the top of the installation support and a vertical insertion plate on the front cover of the electric control box and between a support side face baffle and a vertical limiting end face of a protector bin on the front cover of the electric control box, and the firmness degree of the electric control box after installation is enhanced.

Description

Technical Field

[0001] This utility model relates to an installation structure for the electrical control box of a refrigerator compressor, belonging to the field of refrigerator compressor technology. Background Technology

[0002] Current inverter refrigerator compressors typically have an electrical control box fixedly mounted externally. The inner cavity of the control box is used to install components such as PCB boards. A mounting bracket for mounting the control box is fixedly installed on the compressor body. To improve assembly efficiency, the fixed connection between the control box and the mounting bracket usually uses a screw-operated locking and limiting structure. For example, Chinese patent document CN221043506U discloses an electrical control box for a refrigerator compressor, including a control box body. The bottom outer side of the control box body has a limiting structure for engaging with a three-phase socket of the compressor; the bottom inner side of the control box body has a slot structure for fixing a three-phase wiring harness. The control box body includes a box body, the limiting structure is located on the bottom outer side of the box body, the slot structure is located on the bottom inner side of the box body, and the box body has hooks for connecting to the compressor. During installation, the hooks on the box body are connected to the compressor, and there are fixing holes for fixing to the compressor bracket with screws. The disadvantage of this assembly method is that the mounting bracket has few limiting points on the electrical control box. During the operation of the compressor, the vibration of the compressor body causes the electrical control box to vibrate. Over time, the screw fastening force weakens, causing the electrical control box to loosen or even fall off, generating a lot of noise. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a refrigerator compressor electrical control box installation structure that improves the reliability of the electrical control box installation structure while effectively ensuring assembly efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a refrigerator compressor control box mounting structure, including a compressor body, a mounting bracket, a control box, and fastening screws; the mounting bracket is fixedly mounted on the compressor body, and the control box is mounted on the mounting bracket by fastening screws. The control box includes a front cover on the side facing the mounting bracket, the front cover has a docking window, a front cover top limiting plate is provided in the upper area of ​​the docking window, a front cover right limiting plate is provided in the right area of ​​the docking window, and a front cover mounting plate is provided in the left area of ​​the docking window. A bottom limiting plate for the front cover is provided on the lower side of the opening. The lower end of the rear wall of the top limiting plate for the front cover has a first positioning slope, and the rear wall of the top limiting plate for the front cover has a first horizontal positioning surface above the first positioning slope. The rear end face of the right limiting plate for the front cover and the front end face of the bottom limiting plate for the front cover cooperate to form a first vertical limiting groove. The mounting plate for the front cover has mounting screw holes for connecting and cooperating with fastening screws. The axis of the mounting screw holes extends horizontally in the left-right direction. The mounting bracket includes a vertically arranged mounting base plate, and the middle of the mounting base plate has a terminal corresponding to the wiring terminal on the compressor body. The mounting base has mounting holes; the top edge of the mounting base has a bent inclined plate extending upwards towards the direction of the control box, and a limit buckle is fixedly provided at the upper end of the bent inclined plate. The limit buckle extends towards the control box relative to the bent inclined plate, and the upper surface of the bent inclined plate is in contact with the first positioning inclined surface. The limit buckle has a second horizontal positioning surface in contact with the first horizontal positioning surface; a first buckle is fixedly provided on the side of the mounting base near the control box at a position corresponding to the first vertical limiting groove. The first buckle is composed of a straight edge and a bent edge, and one end of the straight edge is vertically fixedly connected to the mounting base. The other end is vertically fixed to the buckle bend edge, and the buckle bend edge forms a snap-fit ​​engagement with the first vertical limiting groove; a bracket mounting plate is fixedly provided on the side of the mounting base near the electrical control box at the position corresponding to the front cover mounting plate, and a bracket bottom baffle is provided at the position corresponding to the front cover bottom limiting plate. The bracket mounting plate is perpendicular to the mounting base, and one side surface of the bracket mounting plate and the side end face of the bracket bottom baffle form a vertical mounting groove. The front cover mounting plate and the vertical mounting groove form a snap-fit ​​engagement, and the front cover mounting plate and the bracket mounting plate are in close contact. The bracket mounting plate has screw mating holes that mate with fastening screws.

[0005] A further preferred embodiment is that a vertical insert plate is fixedly provided at the intersection of the top limiting plate of the front cover and the right limiting plate of the front cover; a second buckle is fixedly provided on the side of the mounting base near the electrical control box at the position corresponding to the vertical insert plate, and the top of the second buckle has a snap-fit ​​mounting groove that forms a snap-fit ​​engagement with the vertical insert plate.

[0006] A further preferred embodiment is that the mounting base plate, bending inclined plate, limiting buckle, bracket mounting plate, bracket bottom baffle, first buckle and second buckle are integrated into one structure.

[0007] A further preferred embodiment is that: a protector compartment is provided in the inner cavity of the front cover in the area to the left of the docking window; the end face of the protector compartment near the docking window is a vertical limiting end face; a bracket side baffle is fixedly provided on the side of the mounting base near the electrical control box; the bracket side baffle is located in the docking window of the front cover and fits against the vertical limiting end face of the protector compartment; the bracket side baffle is used to limit the compressor protector installed in the protector compartment.

[0008] A further preferred embodiment is that the side baffle of the bracket and the mounting base are an integral structure.

[0009] A further preferred embodiment is that the electrical control box includes a front cover, a rear cover, and a side cover that are detachably and fixedly connected together. The front cover and the rear cover together constitute the main body of the electrical control box, and the side cover is correspondingly located on the side of the main body of the electrical control box that has a protector compartment.

[0010] A further preferred embodiment is that: the rear wall of the top limiting plate of the front cover is provided with a first vertical positioning surface in the area above the first horizontal positioning surface, and the limiting buckle is provided with a limiting slope on the side of the second horizontal positioning surface near the control box. The limiting slope is inclined upward relative to the second horizontal positioning surface in the direction of approaching the control box, and the limiting slope is used to limit the first vertical positioning surface.

[0011] A further preferred embodiment is that a grounding plate is fixedly provided on the outer surface of the mounting substrate near the electrical control box; the grounding plate is fixed to the mounting substrate by welding.

[0012] A further preferred embodiment is that the mounting base plate has multiple solder points, which are then welded and fixed to the compressor body.

[0013] 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.

[0014] The beneficial effects of this utility model are: during specific assembly, the mounting bracket is nested into the docking window on the front cover of the electrical control box, and then the fastening screw is connected and fixed with the screw mating hole on the bracket mounting plate and the mounting screw hole on the front cover mounting plate. Generally, only one fastening screw is needed, and the disassembly and assembly efficiency is relatively high. After the mounting bracket and the front cover of the electrical control box are matched and positioned, multi-dimensional limiting cooperation can be formed between the bent inclined plate and the limiting buckle at the top of the mounting bracket and the limiting plate at the top of the front cover, between the buckle bent edge on the first buckle of the mounting bracket and the first vertical limiting groove in the bottom area of ​​the front cover, and between the vertical mounting groove formed in the area where the side end face of the bracket bottom baffle on the mounting bracket is located and the mounting plate of the front cover. In the preferred embodiment, multi-dimensional limiting cooperation can be further formed between the engaging mounting groove on the second buckle at the top of the mounting bracket and the vertical insert plate on the front cover of the electrical control box, and between the side baffle of the bracket and the vertical limiting end face of the protector compartment on the front cover of the electrical control box. This enhances the firmness of the electrical control box after installation, making it less likely to loosen or fall off. At the same time, the side baffle of the bracket can fix and limit the compressor protector installed in the protector compartment, preventing it from loosening and causing vibration and noise, improving the reliability of the compressor protector installation structure, and basically eliminating the noise hazards caused by it. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the assembled utility model.

[0016] Figure 2 This is an exploded structural diagram of the overall structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the exploded structure of the electrical control box in this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the front cover of the electrical control box in this utility model.

[0019] Figure 5 yes Figure 4 The diagram shows a three-dimensional view of the front cover of the control box from another perspective (mainly showing the rear wall area of ​​the top limiting plate of the front cover).

[0020] Figure 6 yes Figure 4 The diagram shows a three-dimensional view of the front cover of the control box from another perspective (mainly showing the area where the vertical limiting end face of the protector compartment is located).

[0021] Figure 7 yes Figure 4 The diagram shows a three-dimensional view of the front cover of the electrical control box from another perspective (mainly showing the mounting screw holes, the first vertical limiting groove, and other structures).

[0022] Figure 8 yes Figure 4 The front view of the front cover of the electrical control box shown.

[0023] Figure 9 This is a three-dimensional structural diagram of the mounting bracket in this utility model.

[0024] Figure 10 yes Figure 9 The three-dimensional structural diagram of the mounting bracket shown in the figure is viewed from another perspective (mainly showing the positioning structure involved in components such as the bent inclined plate, the limiting buckle, and the second buckle).

[0025] Figure 11 yes Figure 9 The three-dimensional structural diagram of the mounting bracket shown in the figure is viewed from another perspective (mainly showing the bracket screw mounting end face and other structures).

[0026] Figure 12 yes Figure 9 The front view of the mounting bracket shown.

[0027] Component markings in the diagram: Compressor body 1, Mounting bracket 2, Electrical control box 3, Fastening screw 4, Terminal block 11, Limit buckle 21, Second horizontal positioning surface 211, Limiting inclined surface 212, Side baffle of bracket 22, Mounting plate of bracket 23, Vertical mounting groove 231, Screw mating hole 232, Screw mounting end face of bracket 233, Bottom baffle of bracket 24, First snap 25, Snap bend edge 251, Snap straight edge 252, Grounding piece 26, Second snap 27, Engaging mounting groove 271, Mounting base plate 28 The following components are included: wiring hole 281, solder joint 282, bending inclined plate 29, second positioning inclined surface 291, front cover top limiting plate 31, first positioning inclined surface 311, first horizontal positioning surface 312, first vertical positioning surface 313, protector compartment 32, vertical limiting end face 321, vertical insert plate 33, front cover right side limiting plate 34, first vertical limiting groove 341, front cover mounting plate 35, mounting screw hole 351, front cover screw mounting surface 352, front cover bottom limiting plate 36, front cover 37, rear cover 38, and side cover 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 12As shown, this utility model includes a compressor body 1, a mounting bracket 2, an electrical control box 3, and fastening screws 4. The mounting bracket 2 is fixedly mounted on the compressor body 1, and the electrical control box 3 is mounted on the mounting bracket 2 by the fastening screws 4. The electrical control box 3 includes a front cover 37 on the side facing the mounting bracket 2. The front cover 37 is provided with a docking window. After the mounting bracket 2 and the front cover 37 are properly connected, the mounting bracket 2 can keep the docking window as closed as possible, so as to effectively protect the internal structure of the mounting bracket 2 and the electrical control box 3.

[0030] To facilitate understanding of the specific technical solution of this utility model, the front of the front cover 37 facing the electrical control box 3 is described as the front side of the front cover 37. It can be understood that in specific implementation, the left, right and other orientations can be interchanged.

[0031] The front cover 37 has a top limiting plate 31 in the upper area of ​​the docking window, a right limiting plate 34 in the right area of ​​the docking window, a mounting plate 35 in the left area of ​​the docking window, and a bottom limiting plate 36 in the lower area of ​​the docking window. The lower end of the rear wall of the top limiting plate 31 has a first positioning slope 311, and the rear wall of the top limiting plate 31 has a first horizontal positioning surface 312 in the area above the first positioning slope 311. The "rear wall of the top limiting plate 31" refers to the side surface of the top limiting plate 31 away from the compressor body 1, that is, the side surface of the top limiting plate 31 located in the inner cavity of the control box 3. The rear end face of the right side limiting plate 34 of the front cover and the front end face of the bottom limiting plate 36 of the front cover cooperate to form a first vertical limiting groove 341; the front cover mounting plate 35 is provided with mounting screw holes 351 for connecting and cooperating with fastening screws 4, and the axis of the mounting screw holes 351 extends horizontally in the left and right direction; the mounting bracket 2 includes a vertically arranged mounting base plate 28, and the middle of the mounting base plate 28 has mounting wiring holes 281 corresponding to the wiring terminals 11 on the compressor body 1; the top edge of the mounting base plate 28 has a bent inclined plate 29 extending upward towards the direction close to the electrical control box 3, and a limiting buckle 21 is fixedly provided at the upper end of the bent inclined plate 29, and the limiting buckle 21 is relative to the bent inclined plate 29 towards the direction close to the electrical control box 3. The upper surface of the bent inclined plate 29 (i.e., the second positioning inclined surface 291 shown in the figure) is in contact with the first positioning inclined surface 311. The limiting buckle 21 has a second horizontal positioning surface 211 that is in contact with the first horizontal positioning surface 312. A first buckle 25 is fixedly provided on the side of the mounting base plate 28 near the electrical control box 3 at the position corresponding to the first vertical limiting groove 341. The first buckle 25 is composed of a buckle straight edge 252 and a buckle bent edge 251. One end of the buckle straight edge 252 is vertically fixedly connected to the mounting base plate 28, and the other end is vertically fixedly connected to the buckle bent edge 251. That is, the buckle bent edge 251 is parallel to the mounting base plate 28. The buckle bent edge 251 and the first vertical limiting groove 341 form a snap-fit ​​engagement. On the side of the mounting base plate 28 near the electrical control box 3, a bracket mounting plate 23 is fixedly provided at the position corresponding to the front cover mounting plate 35, and a bracket bottom baffle 24 is provided at the position corresponding to the front cover bottom limiting plate 36. The bracket mounting plate 23 is perpendicular to the mounting base plate 28. One side surface of the bracket mounting plate 23 and the side end face of the bracket bottom baffle 24 cooperate to form a vertical mounting groove 231. The front cover mounting plate 35 and the vertical mounting groove 231 form a snap-fit ​​cooperation, and the front cover mounting plate 35 and the bracket mounting plate 23 are in close contact (that is, the bracket screw mounting end face 233 and the front cover screw mounting surface 352 shown in the figure are in close contact). The bracket mounting plate 23 has a screw mating hole 232 that cooperates with the fastening screw 4.

[0032] Understandably, during assembly, the contact and limiting of the parts of the bent inclined plate 29 and the limiting buckle 21 at the top of the mounting bracket 2 with the rear wall of the limiting plate 31 at the top of the front cover, and the engagement and limiting of the buckle bent edge 251 on the first buckle 25 with the first vertical limiting groove 341 in the bottom area of ​​the front cover 37, need to be achieved simultaneously. "First vertical limiting groove 341" means that the structure of the limiting groove is vertically set. During assembly, the buckle bent edge 251 can be inserted into the first vertical limiting groove 341 from bottom to top along the vertical direction. In a preferred embodiment, the buckle bent edge 251 is usually bent at 90° to the left or right relative to the buckle straight edge 252.

[0033] After adopting the above-mentioned structural design, the fitting and limiting between the bent inclined plate 29 and the limiting buckle 21 at the top of the mounting bracket 2 and the rear wall of the limiting plate 31 at the top of the front cover, and the snap-fit ​​limiting between the buckle bent edge 251 on the first buckle 25 and the first vertical limiting groove 341 at the bottom area of ​​the front cover 37, effectively realize the positioning and limiting effect between the mounting bracket 2 and the front cover 37 in the front-back and up-down directions. The front cover mounting plate 35 and the vertical mounting groove 231 form a snap-fit ​​engagement, and the front cover mounting plate 35 and the bracket mounting plate 23 are in close contact, thus effectively realizing the positioning and limiting effect between the mounting bracket 2 and the front cover 37 in the left-right direction. Finally, the connection and fixing effect of the fastening screw 4 fully ensures the reliability of the connection between the mounting bracket 2 and the front cover 37.

[0034] In a preferred embodiment, to further enhance the connection reliability between the mounting bracket 2 and the front cover 37, a vertical insert plate 33 is fixedly provided at the intersection of the top limiting plate 31 and the right limiting plate 34 of the front cover; a second latch 27 is fixedly provided on the side of the mounting base plate 28 near the electrical control box 3 at a position corresponding to the vertical insert plate 33, and the top of the second latch 27 has a snap-fit ​​mounting groove 271 that engages with the vertical insert plate 33. The term "vertical" in "vertical insert plate 33" means that during assembly, the vertical insert plate 33 can be inserted vertically from top to bottom into the snap-fit ​​mounting groove 271. To facilitate the insertion of the vertical insert plate 33 into the snap-fit ​​mounting groove 271, a guide slope or guide rounded corner structure can be added to the insertion end of the vertical insert plate 33, or a guide slope or guide rounded corner structure can be added to the opening of the snap-fit ​​mounting groove 271. In the embodiment shown in the attached figure, a guide slope structure is preferably added to the insertion end of the vertical insert 33, which is equivalent to the lower end of the vertical insert 33 being wedge-shaped.

[0035] For ease of processing and manufacturing, the mounting base plate 28, bending inclined plate 29, limiting buckle 21, bracket mounting plate 23, bracket bottom baffle 24, first buckle 25 and second buckle 27 are preferably integrated structures, which can be formed by stamping or machining.

[0036] In a preferred embodiment, a protector compartment 32 is provided in the inner cavity of the front cover 37 on the left side of the docking window. The end face of the protector compartment 32 near the docking window is a vertical limiting end face 321. A bracket side baffle 22 is fixedly provided on the side of the mounting base 28 near the electrical control box 3. The bracket side baffle 22 is located inside the docking window of the front cover 37 and fits against the vertical limiting end face 321 of the protector compartment 32. The bracket side baffle 22 is used to limit the compressor protector installed in the protector compartment 32. This structural design not only further increases the connection reliability between the mounting bracket 2 and the front cover 37, but also the bracket side baffle 22 can fix and limit the compressor protector installed in the protector compartment 32, preventing it from loosening and causing vibration and noise, thus improving the reliability of the compressor protector installation structure and basically eliminating the noise hazard caused by it.

[0037] In a preferred embodiment, for ease of manufacturing, the side baffle 22 of the bracket and the mounting base plate 28 are preferably an integral structure. In a preferred embodiment, the mounting base plate 28, the bending inclined plate 29, the limiting buckle 21, the side baffle 22 of the bracket, the bracket mounting plate 23, the bottom baffle 24 of the bracket, the first buckle 25 and the second buckle 27 all constitute an integral structure, which can be formed by stamping or by machining.

[0038] In a preferred embodiment, for ease of processing and assembly, the electrical control box 3 includes a front cover 37, a rear cover 38, and a side cover 39 that are detachably and fixedly connected together. The front cover 37 and the rear cover 38 together form the main body of the electrical control box, and the side cover 39 is correspondingly disposed on the side of the main body of the electrical control box that has the protector compartment 32.

[0039] In a preferred embodiment, to further increase the reliability of the connection between the mounting bracket 2 and the front cover 37, the rear wall of the top limiting plate 31 of the front cover is provided with a first vertical positioning surface 313 in the area above the first horizontal positioning surface 312. The limiting buckle 21 is provided with a limiting inclined surface 212 on the side of the second horizontal positioning surface 211 near the electrical control box 3. The limiting inclined surface 212 is inclined upward relative to the second horizontal positioning surface 211 towards the direction near the electrical control box 3, and the limiting inclined surface 212 is used to limit the first vertical positioning surface 313.

[0040] To better ensure the safe operation of the compressor, it is usually necessary to consider designing a grounding device. In the preferred embodiment, for ease of processing and assembly, a grounding plate 26 is fixedly provided on the outer surface of the mounting base plate 28 near the electrical control box 3; the grounding plate 26 is fixed to the mounting base plate 28 by welding.

[0041] In a preferred embodiment, to facilitate processing and assembly, the mounting base plate 28 is provided with a plurality of solder points 282, and is fixed to the compressor body 1 by welding through the solder points 282.

[0042] To better ensure the reliability of the connection between the mounting bracket 2 and the compressor body 1, at least four solder points 282 are provided. The solder points 282 are symmetrically distributed with respect to the vertical plane containing the axis of the mounting wiring hole 281, and solder points 282 are provided at the upper and lower positions of the mounting base plate 28.

[0043] In a preferred embodiment of this utility model, the specific installation method is as follows: the mounting bracket 2 is welded and fixed to the outside of the compressor body 1 by four welding points 282; the top limiting plate 31 of the front cover is set inside the limiting buckle 21, the second positioning inclined surface 291 on the bent inclined plate 29 of the mounting bracket 2 is in contact with the first positioning inclined surface 311 on the top limiting plate 31 of the front cover, the second horizontal positioning surface 211 and the first horizontal positioning surface 312 of the second horizontal positioning surface 211 on the limiting buckle 21 are in contact, and the limiting inclined surface 212 of the limiting buckle 21 locks the first vertical positioning surface 313 of the top limiting plate 31 of the front cover; vertical insert plate 33 is set in the snap-fit ​​mounting groove 271; the snap-fit ​​bent edge 251 is set in the first vertical limiting groove 341; the bracket side baffle 22 is attached to the vertical limiting end face 321 of the protector compartment 32 to fix and limit the compressor protector installed in the protector compartment 32, preventing it from loosening and causing vibration and noise; the front cover mounting plate 35 is set in the vertical mounting groove 231, the bracket screw mounting end face 233 and the front cover screw mounting surface 352 are attached to each other, and the screw mating hole 232 and the mounting screw hole 351 are aligned; finally, the fastening screw 4 is tightened and fixed by passing through the screw mating hole 232 and the mounting screw hole 351 in sequence.

[0044] In this embodiment, multiple limiting mechanisms are used between the mounting bracket 2 and the electrical control box 3:

[0045] 1. The front cover top limiting plate 31 cooperates with the limiting buckle 21, that is, the second positioning slope 291 on the bent slope plate 29 of the mounting bracket 2 fits with the first positioning slope 311 on the front cover top limiting plate 31, the second horizontal positioning surface 211 and the first horizontal positioning surface 312 of the second horizontal positioning surface 211 on the limiting buckle 21 fit together, and the limiting slope 212 of the limiting buckle 21 locks the first vertical positioning surface 313 of the front cover top limiting plate 31.

[0046] 2. The vertical insert plate 33 mates with the snap-fit ​​mounting slot 271;

[0047] 3. The buckle bend 251 engages with the first vertical limiting groove 341;

[0048] IV. The side baffle 22 of the bracket is in contact with the vertical limiting end face 321 of the protector compartment 32;

[0049] 5. The front cover mounting plate 35 mates with the vertical mounting groove 231, the bracket screw mounting end face 233 and the front cover screw mounting surface 352 are in contact, and the screw mating hole 232 and the mounting screw hole 351 are aligned.

[0050] 6. Tighten the fastening screw 4 through the screw mating hole 232 and the mounting screw hole 351 in sequence to secure it.

[0051] According to the technical solution provided by this utility model, by limiting and cooperating the electrical control box 3 and the mounting bracket 2 in multiple dimensions, and by fitting the protector compartment 32 in close contact, the firmness of the electrical control box 3 after installation is enhanced, making it less likely to loosen or fall off. At the same time, the compressor protector installed in the protector compartment 32 is fixed and limited, effectively preventing it from loosening and causing vibration and noise, improving reliability, and basically eliminating the noise hazards caused by it.

[0052] 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 refrigerator compressor control box mounting structure, comprising a compressor body (1), a mounting bracket (2), a control box (3), and fastening screws (4); the mounting bracket (2) is fixedly mounted on the compressor body (1), and the control box (3) is mounted on the mounting bracket (2) by fastening screws (4); the control box (3) includes a front cover (37) disposed on the side facing the mounting bracket (2), characterized in that: The front cover (37) is provided with a docking window. The front cover (37) is provided with a front cover top limiting plate (31) in the upper area of ​​the docking window, a front cover right limiting plate (34) in the right area of ​​the docking window, a front cover mounting plate (35) in the left area of ​​the docking window, and a front cover bottom limiting plate (36) in the lower area of ​​the docking window. The lower end of the rear wall of the front cover top limiting plate (31) has a first positioning slope (311). The rear wall of the top limiting plate (31) of the front cover is provided with a first horizontal positioning surface (312) in the area above the first positioning slope (311). The rear end face of the right limiting plate (34) of the front cover and the front end face of the bottom limiting plate (36) of the front cover cooperate to form a first vertical limiting groove (341). The mounting plate (35) of the front cover is provided with mounting screw holes (351) for connecting and cooperating with fastening screws (4). The axis of the mounting screw holes (351) extends horizontally in the left and right directions. The mounting bracket (2) includes a vertically arranged mounting base plate (28), and the mounting base plate (28) has a mounting wiring hole (281) in the middle that corresponds to the wiring terminal (11) on the compressor body (1); The top edge of the mounting base plate (28) has a bent inclined plate (29) that extends upward toward the direction of the electrical control box (3). A limit buckle (21) is fixedly provided at the upper end of the bent inclined plate (29). The limit buckle (21) extends toward the direction of the electrical control box (3) relative to the bent inclined plate (29). The upper surface of the bent inclined plate (29) is in contact with the first positioning inclined surface (311). The limit buckle (21) has a second horizontal positioning surface (211) that is in contact with the first horizontal positioning surface (312). On the side of the mounting base (28) near the electrical control box (3), a first buckle (25) is fixedly provided at the position corresponding to the first vertical limiting groove (341). The first buckle (25) is composed of a buckle straight edge (252) and a buckle bent edge (251). One end of the buckle straight edge (252) is vertically fixedly connected to the mounting base (28), and the other end is vertically fixedly connected to the buckle bent edge (251). The buckle bent edge (251) and the first vertical limiting groove (341) form a snap-fit ​​engagement. On the side of the mounting base (28) near the electrical control box (3), a bracket mounting plate (23) is fixedly provided at a position corresponding to the front cover mounting plate (35), and a bracket bottom baffle (24) is provided at a position corresponding to the front cover bottom limiting plate (36). The bracket mounting plate (23) is perpendicular to the mounting base (28). One side surface of the bracket mounting plate (23) and the side end face of the bracket bottom baffle (24) cooperate to form a vertical mounting groove (231). The front cover mounting plate (35) and the vertical mounting groove (231) form a snap-fit ​​cooperation, and the front cover mounting plate (35) and the bracket mounting plate (23) are in close contact. The bracket mounting plate (23) has a screw mating hole (232) that cooperates with the fastening screw (4).

2. The refrigerator compressor electrical control box mounting structure as described in claim 1, characterized in that: A vertical insert plate (33) is fixedly provided at the intersection of the top limiting plate (31) of the front cover and the right limiting plate (34) of the front cover; a second buckle (27) is fixedly provided on the side of the mounting base plate (28) near the electrical control box (3) at the position corresponding to the vertical insert plate (33), and the top of the second buckle (27) has a snap-fit ​​mounting groove (271) that forms a snap-fit ​​engagement with the vertical insert plate (33).

3. The refrigerator compressor electrical control box mounting structure as described in claim 2, characterized in that: The mounting base plate (28), bending inclined plate (29), limiting buckle (21), bracket mounting plate (23), bracket bottom baffle (24), first buckle (25) and second buckle (27) are an integrated structure.

4. The refrigerator compressor electrical control box mounting structure as described in claim 1, characterized in that: The inner cavity of the front cover (37) has a protector compartment (32) in the left area of ​​the docking window. The end face of the protector compartment (32) near the docking window is a vertical limiting end face (321). The mounting base (28) is fixedly provided with a bracket side baffle (22) on the side near the electrical control box (3). The bracket side baffle (22) is located in the docking window of the front cover (37) and fits against the vertical limiting end face (321) of the protector compartment (32). The bracket side baffle (22) is used to limit the compressor protector installed in the protector compartment (32).

5. The refrigerator compressor electrical control box mounting structure as described in claim 4, characterized in that: The side baffle (22) of the bracket and the mounting base plate (28) are an integral structure.

6. The refrigerator compressor electrical control box mounting structure as described in claim 4, characterized in that: The electrical control box (3) includes a front cover (37), a rear cover (38) and a side cover (39) that are detachably and fixedly connected together. The front cover (37) and the rear cover (38) together form the main body of the electrical control box, and the side cover (39) is correspondingly set on the side of the main body of the electrical control box with the protector compartment (32).

7. The refrigerator compressor electrical control box mounting structure as described in claim 1, characterized in that: The rear wall of the front cover top limiting plate (31) is provided with a first vertical positioning surface (313) in the area above the first horizontal positioning surface (312). The limiting buckle (21) is provided with a limiting inclined surface (212) on the side of the second horizontal positioning surface (211) near the electrical control box (3). The limiting inclined surface (212) is inclined upward relative to the second horizontal positioning surface (211) towards the direction near the electrical control box (3). The limiting inclined surface (212) is used to limit the first vertical positioning surface (313).

8. The refrigerator compressor control box mounting structure as described in claim 1, characterized in that: A grounding plate (26) is fixedly installed on the outer surface of the mounting base (28) near the electrical control box (3); the grounding plate (26) is fixed to the mounting base (28) by welding.

9. The refrigerator compressor control box mounting structure as described in any one of claims 1 to 8, characterized in that: The mounting base plate (28) has multiple solder points (282) and is fixed to the compressor body (1) by welding through the solder points (282).

10. The refrigerator compressor electrical control box mounting structure as described in claim 9, characterized in that: There are at least four solder joints (282). The solder joints (282) are symmetrically distributed in the vertical plane relative to the axis of the mounting wiring hole (281). Solder joints (282) are provided at the upper and lower positions of the mounting base plate (28).

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