Electric appliance box and heat pump

Abstract

The utility model relates to the technical field of heat pump shells, in particular to an electric appliance box and a heat pump, which comprise a first fixing plate, a second fixing plate provided with a resistor, a third fixing plate and a control mainboard provided with radiating fins, the first fixing plate is vertically arranged, the end part of the first fixing plate is fixedly connected with one end of the second fixing plate, and the end part of the third fixing plate is fixedly connected with the other end of the second fixing plate; the third fixing plate is connected with the other end of the second fixing plate, a first opening is formed in the end of the first fixing plate, a second opening is formed in one end of the second fixing plate and communicated with the first opening, the control mainboard is arranged on the first fixing plate, the cooling fins penetrate through the first opening, and the first opening is communicated with the second opening. And the third fixing plate is provided with a wiring terminal. The control mainboard is vertically arranged on the first fixing plate, the cooling fins penetrate through the first opening, air mobility is better, and heat exchange efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pump casings, and more particularly to an electrical box and a heat pump. Background Art

[0002] With the advancement and development of science and technology, heat pump technology is also constantly being innovated and optimized. In the heat pump system, the electrical box is a key component responsible for controlling and protecting the electrical system of the entire heat pump. It is generally fixed inside the heat pump as a component to ensure that the heat pump can operate safely and efficiently. The electrical box is often installed on the side wall of the heat pump casing in the form of a sheet metal box. This design aims to maximize the use of space. The control motherboard is usually placed flat in the sheet metal box, but this layout has some potential problems. First, the flat control motherboard is prone to dust accumulation, which not only affects its appearance, but more importantly, the accumulation of dust will restrict air circulation, thereby affecting the heat dissipation efficiency of the heat pump. In addition, when the control motherboard and electrical components are placed in a closed sheet metal box, the heat dissipation efficiency will be limited.

[0003] Chinese patent CN219107887U discloses an electrical box mounting structure and a heat pump main unit. The electrical box mounting structure includes a fan chamber top plate, an electrical box, and an electrical box cover. The fan chamber top plate is disposed on one side of the electrical box, and includes a horizontally disposed top plate body and a first folded edge horizontally bent toward the electrical box. The electrical box is formed with a second folded edge horizontally bent toward the fan chamber top plate, and the second folded edge covers the first folded edge. The electrical box cover covers the opening of the electrical box and the second folded edge from above, and the electrical box cover is flush with the top surface of the top plate body of the fan chamber top plate. The mounting structure of the referenced document still cannot avoid the problem of limited heat dissipation efficiency of the electrical box. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiency of the closed electrical box in the prior art in that the heat dissipation efficiency is limited, and to provide an electrical box and a heat pump with better air flow, which is conducive to controlling the heat dissipation of the mainboard and improving the heat exchange efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An electrical box is provided, comprising a first fixing plate, a second fixing plate equipped with a resistor, a third fixing plate and a control main board equipped with a heat sink, wherein the first fixing plate is arranged vertically and its end is fixedly connected to one end of the second fixing plate, the third fixing plate is connected to the other end of the second fixing plate, a first opening is provided at the end of the first fixing plate, a second opening is provided at one end of the second fixing plate and the second opening is connected to the first opening, the control main board is mounted on the first fixing plate, the heat sink is arranged through the first opening, and the third fixing plate is equipped with a wiring terminal.

[0007] The first fixed plate of the utility model is vertically arranged and provided with a first opening, the resistor is installed on the second fixed plate and is communicated with the control main board, the terminal is installed on the third fixed plate and is communicated with the control main board, the control main board is vertically installed on the first fixed plate, the heat sink passes through the first opening, and the control main board is vertically arranged. Both sides of the control main board have a large heat dissipation space, the air flow is better, and the heat exchange efficiency can be improved.

[0008] Furthermore, it also includes a fourth fixing plate, which is connected to the lower end of the second fixing plate, and the fourth fixing plate is arranged coplanar with the first fixing plate. The fourth fixing plate is fixedly connected to the control main board to prevent the control main board from breaking due to bumps or vibrations during transportation.

[0009] Furthermore, it also includes a fifth fixing member, which is installed on the second fixing plate and is a hook-shaped structure, which provides a position for laying the wires and facilitates the routing and bundling of the wires.

[0010] Furthermore, the fifth fixing member is installed at the lower end of the second fixing plate, providing a larger installation space for the upper end of the second fixing member, making the overall wiring of the electrical box more orderly and beautiful.

[0011] Furthermore, a first angle is formed between the first fixing plate and the second fixing plate, and the range of the first angle is 45° to 120°. The internal structure of the electrical box is designed as needed.

[0012] Furthermore, a second angle is formed between the third fixing plate and the second fixing plate, and the second angle ranges from 45° to 180°. The internal structure of the electrical box can be designed as needed.

[0013] Furthermore, a first folded edge is provided at the upper end of the first fixing plate, and a second folded edge is provided at the side along the extension direction of the second fixing plate. The first folded edge and the second folded edge increase the edge strength of the first fixing plate to prevent the first fixing plate from twisting or bending during processing and use.

[0014] Furthermore, a third folded edge is provided at the upper end of the fourth fixed plate along the extension direction of the second fixed plate, a third opening is provided in the middle of the upper end of the fourth fixed plate and the third opening is connected to the first opening, and the fourth fixed plate is connected to the second fixed plate through the third folded edge. The folding process can remove burrs and sharp edges generated during sheet metal processing, thereby improving the safety of the product.

[0015] Furthermore, the first fixing plate, the second fixing plate, the third fixing plate and the fourth fixing plate are all provided with a plurality of fixing holes. When the first fixing plate, the second fixing plate, the third fixing plate and the fourth fixing plate are installed in the correct positions relative to each other, the positions of the fixing holes are corresponding and connected.

[0016] The utility model also provides a heat pump, including a hollow shell and a partition, wherein the partition is installed in the inner cavity of the shell and divides the shell into two cavities, the electrical box is arranged in any cavity, and the end of the third fixing plate is detachably connected to the shell, and the first fixing plate or the fourth fixing plate is detachably connected to the partition.

[0017] The electrical box of the utility model is detachably connected to the housing and the partition, has a stable structure, is easy to install and disassemble, and is convenient for subsequent maintenance.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The first fixing plate of the utility model is vertically arranged and has an opening at its end. The heat sink of the control mainboard passes through the opening, which improves the heat exchange efficiency;

[0020] 2. The fourth fixing plate of the present invention is arranged coplanar with the first fixing plate, which fixes the control main board more firmly and prevents the control main board from breaking due to bumps during transportation;

[0021] 3. The electrical box, housing and partition of the utility model are all detachably connected, and the assembly and disassembly operations are simple and convenient for subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of an electrical box equipped with a control mainboard, wiring terminals and other components of the utility model;

[0023] Figure 2 This is a schematic structural diagram of an electrical appliance box from a first perspective of the present utility model;

[0024] Figure 3 This is a second perspective structural diagram of an electrical box of the utility model

[0025] Figure 4 This is a schematic structural diagram of the fourth fixing plate of the present invention.

[0026] In the accompanying drawings: 1. First fixing plate; 11. First folded edge; 12. Second folded edge; 13. First opening; 2. Second fixing plate; 21. Second opening; 3. Third fixing plate; 31. Terminal block; 32. Fifth folded edge; 33. Wire clamp; 4. Fourth fixing plate; 41. Third folded edge; 42. Third opening; 43. Fourth folded edge; 5. Fifth fixing piece; 6. Fixing hole; 7. Control main board; 71. Heat sink. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and so on indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] Example 1

[0030] like Figures 1 to 4The embodiment shown is the first embodiment of the electrical box, which includes a first fixing plate 1, a second fixing plate 2 with a resistor, a third fixing plate 3 and a control main board 7 with a heat sink 71. The first fixing plate 1 is vertically arranged and its end is fixedly connected to one end of the second fixing plate 2, and the third fixing plate 3 is connected to the other end of the second fixing plate 2. A first opening 13 is provided at the end of the first fixing plate 1, and a second opening 21 is provided at one end of the second fixing plate 2, and the second opening 21 is connected to the first opening 13. The control main board 7 is mounted on the first fixing plate 1, and the heat sink 71 is arranged through the first opening 13. The third fixing plate 3 is equipped with a wiring terminal 31, and the wiring terminal 31 is communicatively connected to the control main board 7. The resistor of the utility model is mounted on the second fixing plate 2, which is communicatively connected to the control main board 7. The resistor is closely connected to the heat pump system, ensuring the smooth flow of current and accurate transmission of signals. The control main board 7 is connected to the first fixing plate 1, and the heat sink 71 is arranged through the first opening 13. The heat dissipation space is larger and the heat exchange efficiency is higher. The width of the second opening 21 is large The width of the control main board 7 is greater than or equal to that of the control main board 7, which is convenient for installation. After installation, the control main board 7 is arranged vertically. Compared with being placed horizontally on the bottom plate, both sides of the control main board 7 have a larger heat dissipation space. This arrangement can maximize the heat dissipation area, so that heat can be more effectively transferred to the surrounding air. The vertical layout helps to form a natural air flow, thereby taking away the accumulated heat and keeping the control main board 7 running at a suitable operating temperature. Moreover, the vertically arranged control main board 7 is less likely to be covered by dust than the horizontally arranged control main board 7, avoiding the problem of reduced heat dissipation efficiency due to dust accumulation; at the same time, the exposed design of the heat sink 71 further enhances the heat dissipation effect, and the surface of the heat sink 71 increases the area in contact with the air, so that heat can be dissipated to the environment faster, thereby improving the heat exchange efficiency and extending the service life of the control main board 7; in addition, the open layout of the control main board 7 and the heat sink 71 simplifies the cleaning and maintenance process, and users can easily remove dust accumulated on the main board and the heat sink 71, thereby maintaining long-term stable operation of the equipment.

[0031] The third fixing plate 3 of the present invention is equipped with a wiring terminal 31 and a wire clamp 33. The power supply is connected to the wiring terminal 31. The wiring terminal 31 is convenient for the operator to quickly identify and connect, thereby improving work efficiency. The wire clamp 33 is used to lock the power cord to prevent the wire from loosening or falling off due to vibration or external force. The setting of the wire clamp 33 not only improves the stability of the connection, but also reduces the risk of failure caused by unstable connection.

[0032] The present invention also includes a fourth fixing plate 4, which is connected to the lower end of the second fixing plate 2, and the fourth fixing plate 4 is coplanar with the first fixing plate 1, and the fourth fixing plate 4 is fixedly connected to the control main board 7. The first fixing plate 1 and the fourth fixing plate 4 are fixedly connected to the control main board 7 together, which improves the rigidity of the fixing structure and makes the fixation of the control main board 7 more secure. By dispersing the force points, the local pressure on the control main board 7 is reduced, and the breakage of the control main board 7 caused by bumps or vibrations during transportation is prevented, thereby ensuring the structural integrity of the control main board 7. In addition, when the control main board 7 needs to be inspected or replaced, it can be achieved by disassembling the first fixing plate 1 and the fourth fixing plate 4 without destroying the control main board 7.

[0033] A first angle is formed between the first fixing plate 1 and the second fixing plate 2 of the utility model, and the first angle ranges from 45° to 120°. In this embodiment, the first angle is selected to be 90°, that is, the first fixing plate 1 and the second fixing plate 2 are arranged perpendicular to each other, and the resistor is placed horizontally and installed on the upper end of the second fixing plate 2. A second angle is formed between the third fixing plate 3 and the second fixing plate 2, and the second angle ranges from 45° to 180°. The angle design makes the components of the electrical box easier to assemble and repair, thereby improving maintainability. In addition, the second fixing plate 2 can be used to place other electrical components as needed.

[0034] The first folding edge 11 is provided on the upper end of the first fixing plate 1 of the present invention, and the second folding edge 12 is provided on the side along the extension direction of the second fixing plate 2. The second folding edge 12 is used to position the installation of the control main board 7. When the control main board 7 is installed in the correct position, the second folding edge 12 is parallel to the side of the control main board 7, and it can be set that when the control main board 7 is installed in the correct position, both sides of the control main board 7 are against the second folding edge 12. The first folding edge 11 and the second folding edge 12 increase the edge strength of the first fixing plate 1 to prevent the first fixing plate 1 from twisting or bending during processing and use. The upper end of the fourth fixing plate 4 is provided with a third folding edge 41 along the extension direction of the second fixing plate 2. A third opening 42 is provided in the middle of the upper end of the fourth fixing plate 4, and the third opening 42 is connected to the first opening 13. The fourth fixing plate 4 is connected to the second fixing plate 2 through a third folding edge 41, and the third folding edge 41 is an L-shaped structure. A fourth folding edge 43 is provided at the lower part of the side end of the fourth fixing plate 4 toward the third fixing plate 3. The folding edge treatment can remove burrs and sharp edges generated during sheet metal processing, thereby improving product safety. The deburring process is an important part of sheet metal processing, which ensures the smooth edges of sheet metal parts and avoids the safety hazards that may be caused by sharp edges. The folding edge can also improve the appearance of sheet metal parts, making the edges neater and more beautiful, thereby improving the overall appearance quality of the product.

[0035] The first fixing plate 1, the second fixing plate 2, the third fixing plate 3 and the fourth fixing plate 4 of the utility model are all provided with a plurality of fixing holes 6, and one end of the second fixing plate 2 corresponds to the position of the fixing hole 6 opened at the end of the third fixing plate 3, the fixing hole 6 of the fourth fixing plate 4 is located at the third folded edge 41, and the position of the fixing hole 6 opened on the third side corresponds to the position of the fixing hole 6 opened at the other end of the second fixing plate 2. When the first fixing plate 1, the second fixing plate 2, the third fixing plate 3 and the fourth fixing plate 4 are installed in the correct position with respect to each other, the positions of the plurality of fixing holes 6 correspond to each other, and ensuring that the positions of the fixing holes 6 correspond accurately can ensure the correct installation of connecting parts (such as bolts, rivets, pins, etc.) and improve the reliability of the connection; it can also simplify the assembly process, improve production efficiency and reduce human errors; on the automated production line, the precise hole position correspondence can ensure that the robot arm or other automated equipment can accurately position and fix the components to realize automated production; in addition, the precise hole position design can reduce material waste caused by misalignment and improve material utilization.

[0036] In this embodiment, the first fixing plate 1 is fixedly connected to the second fixing plate 2, and the fixing holes 6 of the second fixing plate 2 and the third fixing plate 3 are aligned, and the fixing connection is fixed by rivets. The rivets can provide a strong clamping force, making the connection very firm, and the rivet connection is not easy to loosen, so the reliability of the connection can still be maintained in a vibrating environment, avoiding damage to the electrical box caused by bumps or vibrations during transportation. In addition, the riveting process is relatively simple and can be completed quickly, improving production efficiency. Once the riveting is completed, it does not need to be disassembled again, which is suitable for permanent connection inside the electrical box. The use of rivets to connect and fix the second fixing plate 2 and the third fixing plate 3 in this embodiment does not mean that they are limited to rivets. They can also be connected by welding or pins, which needs to be comprehensively considered according to the specific requirements of the actual application.

[0037] The working principle of the electrical box of this embodiment is as follows: the first fixed plate 1 is installed vertically and fixedly connected to the second fixed plate 2, the angle between the first fixed plate 1 and the second fixed plate 2 is 90°, the control main board 7 is installed through the opening on the side of the first fixed plate 1 close to the second fixed plate 2 and the heat sink 71 of the control main board 7 passes through the opening. At this time, the control main board 7 is placed upright, the heat dissipation performance is better and it is not easy to accumulate dust. The resistor is installed on the upper end of the second fixed plate 2, which is placed horizontally, and the second fixed plate 2 can also be installed with other electrical components.

[0038] Example 2

[0039] like Figure 1The embodiment shown is the second embodiment of the electrical box. This embodiment is similar to the first embodiment, except that the present invention further includes a fifth fixing member 5, which is mounted on the second fixing plate 2 and is a structural structure. The installation of the fifth fixing member 5 ensures the stability of the device. The inner side of the fifth fixing member 5 with a hook-shaped structure provides a position for the installation of wires, through which the wires can pass and be fixed in an appropriate position. This layout not only facilitates the routing and bundling of wires, but also helps to maintain overall order and tidiness, reducing the safety risks caused by the disorder of wires. The outer side of the hook-shaped structure of the fifth fixing member 5 can be used to fix electrical components, ensuring that the electrical components are tightly connected to the electrical box and improving stability. The fifth fixing member 5 of the present invention is mounted at the lower end of the second fixing member, making the overall routing of the electrical box more orderly and beautiful, and providing a larger installation space for the upper end of the second fixing member, so that the second fixing member can install more electrical components.

[0040] Example 3

[0041] This embodiment is an embodiment of a heat pump. The present invention includes a hollow housing and a partition. The partition is mounted within the housing and divides the housing into two chambers. The electrical box is positioned in either chamber. The ends of the third fixing plate 3 are detachably connected to the housing. The first fixing plate 1 or the fourth fixing plate 4 are detachably connected to the partition. This facilitates disassembly during heat pump maintenance, significantly improving maintenance efficiency while minimizing interference with other components and reducing maintenance costs. The third fixing plate 3 is connected to the end of the second fixing plate 2 at one end and has a fifth folded edge 32 at the other end. The fifth folded edge 32 is provided with a fixing hole 6. The third fixing plate 3 is detachably connected to the housing via the fifth folded edge 32. In this embodiment, the electrical box is connected to the housing and partition using screws. This simple screw connection structure allows for quick assembly and disassembly, eliminates the need for complex tools, and facilitates maintenance and repair. The use of screws to connect the electrical box to the housing and partition in this embodiment is not intended to be limiting. Welding, pins, snaps, and other methods may also be used. The preferred method should be considered based on various factors, including practical requirements, cost budget, and ease of maintenance.

[0042] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An electrical appliance box, characterized in that: The invention comprises a first fixing plate (1), a second fixing plate (2) equipped with a resistor, a third fixing plate (3) and a control main board (7) equipped with a heat sink (71), wherein the first fixing plate (1) is vertically arranged and its end is fixedly connected to one end of the second fixing plate (2), the third fixing plate (3) is connected to the other end of the second fixing plate (2), the end of the first fixing plate (1) is provided with a first opening (13), one end of the second fixing plate (2) is provided with a second opening (21) and the second opening (21) is communicated with the first opening (13), the control main board (7) is installed on the first fixing plate (1), the heat sink (71) is arranged through the first opening (13), and the third fixing plate (3) is equipped with a wiring terminal (31).

2. The electrical box according to claim 1, characterized in that: It also includes a fourth fixing plate (4), the fourth fixing plate (4) being connected to the lower end of the second fixing plate (2), the fourth fixing plate (4) being coplanarly arranged with the first fixing plate (1), and the fourth fixing plate (4) being fixedly connected to the control main board (7).

3. The electrical box according to claim 1, characterized in that: It also includes a fifth fixing member (5), which is installed on the second fixing plate (2) and is a hook-shaped structure.

4. The electrical box according to claim 3, characterized in that: The fifth fixing member (5) is mounted on the lower end of the second fixing plate (2).

5. The electrical appliance box according to claim 1, characterized in that: A first angle is formed between the first fixing plate (1) and the second fixing plate (2), and the first angle ranges from 45° to 120°.

6. The electrical appliance box according to claim 1, characterized in that: A second angle is formed between the third fixing plate (3) and the second fixing plate (2), and the second angle ranges from 45° to 180°.

7. The electrical appliance box according to claim 1, characterized in that: The upper end of the first fixing plate (1) is provided with a first folded edge (11), and the side portion thereof is provided with a second folded edge (12) along the extension direction of the second fixing plate (2).

8. The electrical appliance box according to claim 2, characterized in that: A third folded edge (41) is provided at the upper end of the fourth fixing plate (4) along the extension direction of the second fixing plate (2); a third opening (42) is provided in the middle of the upper end of the fourth fixing plate (4), and the third opening (42) is communicated with the first opening (13); the fourth fixing plate (4) is connected to the second fixing plate (2) via the third folded edge (41).

9. The electrical appliance box according to claim 2, characterized in that: The first fixing plate (1), the second fixing plate (2), the third fixing plate (3) and the fourth fixing plate (4) are all provided with a plurality of fixing holes (6).

10. A heat pump, characterized in that: It comprises a hollow shell and a partition, wherein the partition is installed in the inner cavity of the shell and divides the shell into two cavities, the electrical box according to any one of claims 1 to 9 is arranged in any cavity, and the end of the third fixing plate (3) is detachably connected to the shell, and the first fixing plate (1) or the fourth fixing plate (4) is detachably connected to the partition.

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