Protection structure for control circuit of refrigerating unit
By setting compression blocks and support blocks to clamp the bus bundle in the control circuit of the refrigeration unit, and setting redundancy between the winding wheel and the U-shaped plate, the problem of cables being easily pulled during maintenance is solved, and the reliability of cable connections is improved.
Patent Information
- Application Number
- CN202422884244.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-26
AI Technical Summary
During maintenance of existing refrigeration unit control circuits, cables are easily pulled, leading to damaged connectors or poor contact.
Tightening the adjusting bolts causes the compression block and support block to clamp the bus harness, and a redundant section is set between the winding wheel and the U-shaped plate to prevent the cable from being pulled at the connection point with the controller.
This reduces the probability of damage to cable connections and improves the reliability and usability of maintenance.
Smart Images

Figure CN223540208U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary protection equipment for refrigeration units, and in particular to a protection structure for the control circuit of a refrigeration unit. Background Technology
[0002] The control circuit of the refrigeration unit needs to be installed and fixed through the control box. Currently, the control boxes of refrigeration units on the market use the method of directly fixing the cables to the terminal of the controller. The redundant cables are run out from the control box and fixed. During maintenance, the cables are easily pulled, which can cause damage to the connectors or poor contact. Therefore, a protective structure for the control circuit of the refrigeration unit is provided. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a protective structure for the control circuit of a refrigeration unit. By turning the adjusting bolt, the compression block and the support block clamp the bus harness, and a redundant section is set between the winding wheel and the U-shaped plate. This prevents the connection between the cable harness and the refrigeration unit controller from being pulled during maintenance, reducing the probability of damage to the cable connection. It has good practicality and overcomes the shortcomings of existing technologies.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A protective structure for a refrigeration unit control circuit includes a housing, a support plate fixed to the inner wall of the housing, a support frame installed on the inner wall of the housing and on one side of the support plate, a wire-passing hole fixed to the bottom horizontal section of the support frame, a cable-collecting pipe fixed to the upper end of the wire-passing hole, a fixing component installed on one side of the vertical section of the support frame, a winding wheel installed on the top horizontal section of the support frame, a wire-distributing component installed on one side of the support plate, and a door provided on one side of the housing.
[0006] As a further embodiment of this utility model: the fixing component includes a support block fixed to one side of the vertical section of the support frame, a U-shaped plate fixed to the outside of the support block, an adjusting bolt screwed onto the U-shaped plate, and a pressing block connected to the end of the adjusting bolt facing the support block.
[0007] As a further improvement of this utility model, the support block has a wire gathering groove on the side facing the extrusion block.
[0008] As a further improvement of this utility model: a U-shaped rod is installed on one side of the top of the support frame, and a wire gathering ring is fixed on the inner side of the U-shaped rod, with the wire gathering ring located on one side of the winding wheel.
[0009] As a further embodiment of this utility model: the branching assembly includes an L-shaped support plate connected to one side of the lower end face of the horizontal section of the support plate, and branching holes are equally spaced at the top of the vertical section of the L-shaped support plate.
[0010] As a further improvement of this utility model: a mounting frame is fixed on one inner wall of the box body above the L-shaped support plate, and a cooling fan is installed on the inner wall of the mounting frame.
[0011] As a further improvement of this utility model: a heat dissipation hole is provided at the bottom of one side of the box, and an air inlet hole is provided at the top of the other side of the box.
[0012] As a further improvement of this utility model, the upper end face of the support plate is symmetrically fixed with two support seats for supporting the refrigeration unit controller.
[0013] The beneficial effects of this utility model are as follows:
[0014] By tightening the adjusting bolts, the compression block and support block clamp the bus harness. A redundant section is set between the winding wheel and the U-shaped plate. This prevents the cable harness from being pulled at the connection point with the chiller unit controller during maintenance, reducing the probability of damage to the cable connection point. It is quite practical. Attached Figure Description
[0015] Figure 1 This is a first-view three-dimensional structural diagram of a protection structure for a refrigeration unit control circuit proposed in this utility model.
[0016] Figure 2 This is a second-view three-dimensional structural diagram of a protection structure for a refrigeration unit control circuit proposed in this utility model.
[0017] Figure 3 This is a third-view perspective three-dimensional structural diagram of a protection structure for a refrigeration unit control circuit proposed in this utility model.
[0018] Figure 4 This utility model proposes a protection structure for the control circuit of a refrigeration unit. Figure 2 Enlarged structural diagram at point A in the middle.
[0019] Figure 5 This utility model proposes a protection structure for the control circuit of a refrigeration unit. Figure 2 Enlarged structural diagram at point B.
[0020] In the diagram: 1. Cabinet; 2. Support plate; 3. Cable conduit; 4. Support frame; 5. Cabinet door; 6. U-shaped plate; 7. Support base; 8. Winding wheel; 9. L-shaped support plate; 10. Mounting frame; 11. Branch hole; 12. Air inlet; 13. Heat dissipation hole; 14. Support block; 15. Extrusion block; 16. Adjusting bolt; 17. U-shaped rod; 18. Cable conduit ring. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Example 1, referring to Figure 1-5 A protective structure for the control circuit of a refrigeration unit includes a housing 1, a support plate 2 fixed to the inner wall of the housing 1, two support seats 7 for supporting the refrigeration unit controller symmetrically fixed to the upper end of the support plate 2, a support frame 4 installed on the inner wall of the housing 1 and on one side of the support plate 2, a wire hole fixed to the bottom horizontal section of the support frame 4, and a cable conduit 3 fixed to the upper end of the wire hole, a fixing component installed on one side of the vertical section of the support frame 4, a winding wheel 8 installed on the top horizontal section of the support frame 4, a wire splitting component installed on one side of the support plate 2, and a door 5 provided on one side of the housing 1.
[0023] The fixing component includes a support block 14 fixed to one side of the vertical section of the support frame 4. A U-shaped plate 6 is fixed to the outside of the support block 14. An adjusting bolt 16 is screwed onto the U-shaped plate 6. A pressing block 15 is connected to one end of the adjusting bolt 16 facing the support block 14. A wire gathering groove is opened on the side of the support block 14 facing the pressing block 15. By turning the adjusting bolt 16, the pressing block 15 and the support block 14 can clamp the wire harness, thereby fixing the wire harness.
[0024] A U-shaped rod 17 is installed on one side of the top of the support frame 4. A wire collecting ring 18 is fixed on the inner side of the U-shaped rod 17. The wire collecting ring 18 is located on one side of the winding wheel 8.
[0025] The branching assembly includes an L-shaped support plate 9 connected to one side of the lower end face of the horizontal section of the support plate 2, and branching holes 11 are equally spaced at the top of the vertical section of the L-shaped support plate 9.
[0026] After the main bus bundle passes through the hub tube 3, it passes through the section between the support block 14 and the U-shaped plate 6, then around the winding wheel 8, and finally passes through the hub ring 18. The branch wires of the main bus bundle pass through the branch holes 11 of the L-shaped support plate 9 and are connected to the refrigeration unit controller. A redundant section is set in the part of the main bus bundle between the winding wheel 8 and the U-shaped plate 6. Then, the adjusting bolt 16 is turned so that the pressing block 15 and the support block 14 clamp the main bus bundle, thereby fixing the main bus bundle.
[0027] Example 2 is an optimization based on Example 1, specifically:
[0028] A mounting frame 10 is fixed on one inner wall of the housing 1 and above the L-shaped support plate 9. A cooling fan is installed on the inner wall of the mounting frame 10. A heat dissipation hole 13 is opened at the bottom of one side of the housing 1, and an air inlet hole 12 is opened at the top of the other side of the housing 1.
[0029] Use a cooling fan to blow air onto the connection between the wiring harness and the chiller controller to cool the connection and prevent it from overheating.
[0030] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A protection structure for a refrigeration unit control circuit, comprising a housing (1), characterized in that, The inner wall of the box (1) is fixed with a support plate (2). A support frame (4) is installed on the inner wall of the box (1) and on one side of the support plate (2). A wire hole is fixed on the bottom horizontal section of the support frame (4), and a wire collection tube (3) is fixed on the upper end of the wire hole. A fixing component is installed on one side of the vertical section of the support frame (4). A winding wheel (8) is installed on the top horizontal section of the support frame (4). A wire splitting component is installed on one side of the support plate (2). A box door (5) is provided on one side of the box (1).
2. The protection structure for the control circuit of a refrigeration unit according to claim 1, characterized in that, The fixing component includes a support block (14) fixed to one side of the vertical section of the support frame (4), a U-shaped plate (6) fixed to the outside of the support block (14), an adjusting bolt (16) screwed onto the U-shaped plate (6), and a pressing block (15) connected to one end of the adjusting bolt (16) facing the support block (14).
3. The protection structure for the control circuit of a refrigeration unit according to claim 2, characterized in that, The support block (14) has a wire gathering groove on the side facing the extrusion block (15).
4. The protection structure for the control circuit of a refrigeration unit according to claim 1, characterized in that, A U-shaped rod (17) is installed on one side of the top of the support frame (4), and a wire gathering ring (18) is fixed on the inner side of the U-shaped rod (17). The wire gathering ring (18) is located on one side of the winding wheel (8).
5. The protection structure for the control circuit of a refrigeration unit according to claim 1, characterized in that, The branching assembly includes an L-shaped support plate (9) connected to one side of the lower end face of the horizontal section of the support plate (2), and branching holes (11) are opened at equal intervals on the top of the vertical section of the L-shaped support plate (9).
6. The protection structure for a refrigeration unit control circuit according to claim 5, characterized in that, A mounting frame (10) is fixed on one side of the inner wall of the box (1) and above the L-shaped support plate (9). A cooling fan is installed on the inner wall of the mounting frame (10).
7. The protection structure for the control circuit of a refrigeration unit according to claim 6, characterized in that, A heat dissipation hole (13) is provided on the bottom of one side of the box (1), and an air inlet hole (12) is provided on the top of the other side of the box (1).
8. The protection structure for the control circuit of a refrigeration unit according to claim 1, characterized in that, The upper end face of the support plate (2) is symmetrically fixed with two support seats (7) for supporting the refrigeration unit controller.