Heat dissipation structure of diverter

Abstract

The utility model relates to the technical field of diverters, in particular to a heat dissipation structure of a diverter, which comprises a shunting sheet and a shell, and the shunting sheet is provided with a wiring part exposed out of the shell; the circuit board is electrified with the shunting sheet, is detachably connected with the shunting sheet and is positioned in the shell; the fastening assemblies are made of a high-temperature-resistant insulating material and are detachably connected with the shell and the shunting sheet, and a safety gap is formed between the shell and the shunting sheet; wherein a plurality of upper heat dissipation holes and a plurality of lower heat dissipation holes are formed in the top and the side wall of the shell respectively, a ventilation space is formed in the shell, and the ventilation space is communicated with the upper heat dissipation holes and the lower heat dissipation holes. By adopting the scheme of the utility model, the current divider and the metal shell can be ensured to form electrical insulation, and the heat dissipation performance can be obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of splitter technology, specifically, a heat dissipation structure for a splitter. Background Technology

[0002] During the energization process, the shunt plate generates a large amount of heat, causing the temperature to rise. To facilitate heat dissipation, a heat-dissipating shunt has been proposed in the prior art, disclosed in CN109490590A. It includes two coplanar connecting plates, with a resistor plate connected between the two connecting plates. Each connecting plate has at least one second through hole and at least one first through hole or connecting post. A heat dissipation shell is provided on the outside of the resistor plate.

[0003] Although the existing solutions take into account the feasibility of heat dissipation, the heat dissipation effect is still limited, and the existing solutions do not consider optimizing the connection structure between the shunt plate and the housing of the shunt while ensuring the heat dissipation effect. Utility Model Content

[0004] The purpose of this invention is to provide a heat dissipation structure for a shunt, which significantly improves the heat dissipation effect and has good electrical insulation performance.

[0005] The purpose of this utility model is achieved as follows: a heat dissipation structure for a shunt includes:

[0006] The shunt plate and housing, wherein the shunt plate has a wiring portion exposed outside the housing;

[0007] A circuit board that is energized with the shunt plate, the circuit board being detachably connected to the shunt plate and located inside the housing, the circuit board also having an interface exposed outside the housing;

[0008] Several fastening components made of high-temperature resistant insulating material, wherein the fastening components detachably connect the housing and the shunt plate, and form a safe gap between the housing and the shunt plate;

[0009] The outer shell has several upper heat dissipation holes and several lower heat dissipation holes on its top and side walls, and a ventilation space is formed inside the outer shell, which is connected to the upper and lower heat dissipation holes.

[0010] Furthermore, the outer casing is a metal casing, and the fastening assembly includes a shunt gasket made of high-temperature resistant insulating material. The upper side of the shunt gasket supports the shunt plate, and its lower side abuts against the inner bottom wall of the outer casing.

[0011] Furthermore, the fastening assembly also includes a shunt fastening screw made of high-temperature resistant insulating material, the shunt gasket is fitted with the shunt fastening screw, and the threaded portion of the shunt fastening screw penetrates the housing and the shunt gasket and is threadedly connected to the shunt plate.

[0012] Furthermore, the circuit board is mounted on the upper side of the shunt plate and has several grid holes that run vertically through it.

[0013] Furthermore, the outer casing is divided into a top casing and a bottom casing. The top casing and the bottom casing are respectively positioned opposite the upper and lower sides of the splitter plate. The top casing and the bottom casing are detachably connected. A safety gap is left between the top casing and the bottom casing and the surface of the splitter plate. The upper heat dissipation hole and the lower heat dissipation hole are respectively opened on the top of the top casing and the side wall of the bottom casing.

[0014] Furthermore, the top of the top housing is provided with an upper clearance hole, and the interface is located within the upper clearance hole.

[0015] Furthermore, the bottom shell sidewall has at least two bottom side openings.

[0016] Furthermore, each bottom opening is integrally connected to an outwardly extending fixing plate for securing the position of the outer shell.

[0017] Furthermore, the portion of the shunt plate inside the housing has several vertically arranged intermediate plates, and a through hole is formed between any two adjacent intermediate plates, with the grid holes of the circuit board located above the through hole.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. From the perspective of electrical insulation:

[0020] At the connection between the shunt plate at the bottom and the metal casing, the shunt fastening screws and shunt gaskets are made of high-temperature resistant insulating material to ensure electrical insulation between the shunt and the metal casing;

[0021] The shunt gasket creates a safe gap between the housing and the shunt plate. When used in conjunction with the shunt fastening screw, the housing and the shunt plate do not come into contact or conduct electricity at the connection point, and the shunt gasket can support the weight of the shunt plate, exhibiting good load-bearing capacity.

[0022] 2. The heat dissipation performance is significantly improved. The shunt will generate a lot of heat during long-term operation. The gap between the housing and the shunt plate and the heat dissipation holes of the housing can ensure good heat dissipation. At the same time, the circuit board has several grid holes, which can effectively guide the heat of the shunt plate below to dissipate. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention.

[0024] Figure 2 This is a schematic diagram of the connection scheme between the flow divider and the housing.

[0025] Figure 3 yes Figure 2 Enlarged view of part A in the image.

[0026] Figure 4 This is a schematic diagram of the flow divider.

[0027] Figure 5 This is a schematic diagram of the ventilation space layout inside the outer casing.

[0028] Figure 6 This is a schematic diagram of the heat dissipation structure of the circuit board.

[0029] Figure 7 This is a schematic diagram showing the connection between the upper heat dissipation holes and the ventilation space. Detailed Implementation

[0030] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0031] like Figure 1-7 As shown, a heat dissipation structure for a shunt is proposed, comprising:

[0032] Shunt plate 1 and housing 6. Housing 6 is a metal housing. Shunt plate 1 has a wiring part 2 (input end) exposed outside housing 6. Generally, bolts, nuts, washers and other components are passed through the wiring part 2 to fix the wires. The material of shunt plate 1 is not limited, such as manganese bronze.

[0033] The circuit board 5 is energized with the shunt plate 1. The circuit board 5 is detachably connected to the shunt plate 1 and is located inside the housing 6. The circuit board 5 is also provided with an interface 5a (output terminal) exposed outside the housing 6.

[0034] Several fastening components made of high-temperature resistant insulating material are provided. The fastening components can be detachably connected to the housing 6 and the current shunt 1, and a safety gap is formed between the housing 6 and the current shunt 1. The safety gap is breathable and facilitates heat dissipation. That is, the housing 6 and the current shunt 1 are always kept in a non-contact / insulated state, which is equivalent to "suspending" the current shunt 1 in the housing 6. The left and right wiring parts 2 of the current shunt 1 respectively move through the left and right sides of the housing 6.

[0035] The outer casing 6 has several upper heat dissipation holes 601a and several lower heat dissipation holes 602a on its top and side walls, respectively, forming a ventilation space 9 inside the outer casing 6 (e.g., Figure 5 As shown, the ventilation space 9 is connected to the upper heat dissipation hole 601a and the lower heat dissipation hole 602a, thereby facilitating the heat dissipation of the shunt plate 1.

[0036] The aforementioned outer shell 6 is divided into a top shell 601 and a bottom shell 602. Both the top shell 601 and the bottom shell 602 are integrally formed metal plates. The top shell 601 and the bottom shell 602 are respectively facing the upper and lower sides of the flow divider 1. The top shell 601 and the bottom shell 602 are detachably connected by screws. A safety gap is left between the top shell 601 and the bottom shell 602 and the surface of the flow divider 1. The upper heat dissipation hole 601a and the lower heat dissipation hole 602a are respectively opened on the top of the top shell 601 and the side wall of the bottom shell 602.

[0037] As a preferred embodiment, such as Figure 2 , 3 As shown, each fastening assembly includes:

[0038] The shunt gasket 8 is made of high-temperature resistant insulating material. The shunt gasket 8 can be made of high-temperature resistant plastic (or other high-temperature resistant insulating material). It is a circular gasket with a hole in the middle. The upper side of the shunt gasket 8 supports the shunt plate 1, and its lower side is attached to the inner bottom wall of the outer shell 6, so that a safe gap that can be ventilated is formed between the shunt plate 1 and the outer shell 6.

[0039] The shunt fastening screw 7 is made of high-temperature resistant insulating material. The shunt fastening screw 7 can be made of high-temperature resistant plastic (or other high-temperature resistant insulating material). The shunt gasket 8 is fitted with the shunt fastening screw 7. The threaded part of the shunt fastening screw 7 passes through the housing 6 and the shunt gasket 8 and is threadedly connected to the shunt plate 1.

[0040] To facilitate the installation and fastening of the components, the bottom surface of the base housing 602 is provided with a countersunk groove 602d for countersunk heads (e.g., Figure 3 As shown), to accommodate the head of the shunt fastening screw 7, the bottom groove 602d can be formed by stretching the bottom housing 602 upward.

[0041] In addition, as a preferred embodiment, to further improve heat dissipation performance and make ventilation inside the outer casing 6 more efficient, such as... Figure 6 As shown, the circuit board 5 is mounted on the upper side of the shunt plate 1 and has several vertically penetrating grid holes 5b. The portion of the shunt plate 1 inside the housing 6 forms several spaced vertical plate-shaped intermediate plates 3 (e.g., ...). Figure 4 As shown), a through hole 4 is formed between any two adjacent intermediate plates 3, that is, several through holes 4 can be formed (such as...). Figure 4 , 7As shown, the grid hole 5b of the circuit board 5 is located above the through hole 4, and the heat dissipation airflow can be discharged after passing through the through hole 4, the grid hole 5b, and the upper heat dissipation hole 601a.

[0042] like Figure 1 As shown, in a preferred embodiment, the top of the top housing 601 is provided with an upper clearance hole 601b, and the interface 5a is located within the upper clearance hole 601b.

[0043] The bottom housing 602 has two bottom openings 602b on its side wall. The bottom openings 602b can be used for ventilation and heat dissipation. Each bottom opening 602b is integrally connected to an outwardly extending fixing plate 602c for fixing the position of the outer casing 6. In use, screws can be used to pass through the fixing plate 602c to fix the entire outer casing 6 to the corresponding device, thereby fixing the entire splitter to the corresponding device. Therefore, the fixing plate 602c is set in this solution as a fixed connection part of the entire splitter.

[0044] In summary, this solution mainly addresses the following issues:

[0045] 1. The primary issue to address is how to install the splitter, so the outer casing 6 needs to be installed as the fixed foundation for the entire splitter;

[0046] 2. The second problem to be solved is that ordinary plastic shells have insufficient strength and heat dissipation / melting issues. Therefore, this solution uses metal as the material for shell 6.

[0047] 3. Furthermore, in order to solve the insulation problem caused by the metal casing, this solution includes a shunt fastening screw 7 and a shunt gasket 8 made of high-temperature resistant insulating material.

[0048] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In this utility model, it should also be noted that the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to fixed connection, detachable connection, integral molding connection, mechanical connection, or indirect connection through intermediate connecting parts. The specific meaning of the terms in this utility model can be understood according to the specific circumstances.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat dissipation structure for a shunt, characterized in that, include: The shunt plate (1) and the housing (6) are provided with a wiring portion (2) exposed outside the housing (6); A circuit board (5) energized with the shunt plate (1), the circuit board (5) being detachably connected to the shunt plate (1) and located within the housing (6); Several fastening components made of high-temperature resistant insulating material, wherein the fastening components detachably connect the housing (6) and the diverter plate (1) and form a safety gap between the housing (6) and the diverter plate (1); The outer shell (6) has several upper heat dissipation holes (601a) and several lower heat dissipation holes (602a) on its top and side walls, respectively. A ventilation space (9) is formed inside the outer shell (6), and the ventilation space (9) is connected to the upper heat dissipation holes (601a) and the lower heat dissipation holes (602a).

2. The heat dissipation structure of a shunt according to claim 1, characterized in that: The outer shell (6) is a metal shell, and the fastening assembly includes a shunt gasket (8) made of high temperature resistant insulating material. The upper side of the shunt gasket (8) supports the shunt plate (1), and its lower side is attached to the inner bottom wall of the outer shell (6).

3. The heat dissipation structure of a shunt according to claim 2, characterized in that: The fastening assembly also includes a shunt fastening screw (7) made of high-temperature resistant insulating material. The shunt gasket (8) is fitted with the shunt fastening screw (7). The threaded portion of the shunt fastening screw (7) passes through the housing (6) and the shunt gasket (8) and is threadedly connected to the shunt plate (1).

4. The heat dissipation structure of a shunt according to claim 1, characterized in that: The circuit board (5) is mounted on the upper side of the shunt plate (1) and has several grid holes (5b) that run vertically through it.

5. The heat dissipation structure of a shunt according to claim 4, characterized in that: The outer shell (6) is divided into a top shell (601) and a bottom shell (602). The top shell (601) and the bottom shell (602) are respectively facing the upper and lower sides of the flow divider (1). The top shell (601) and the bottom shell (602) are detachably connected. A safety gap is left between the top shell (601) and the bottom shell (602) and the surface of the flow divider (1). The upper heat dissipation hole (601a) and the lower heat dissipation hole (602a) are respectively opened on the top of the top shell (601) and the side wall of the bottom shell (602).

6. The heat dissipation structure of a shunt according to claim 5, characterized in that: The circuit board (5) is also provided with an interface (5a) exposed outside the outer shell (6), and the top shell (601) is provided with an upper clearance hole (601b) at the top, and the interface (5a) is located inside the upper clearance hole (601b).

7. The heat dissipation structure of a shunt according to claim 5, characterized in that: The bottom shell (602) has at least two bottom side openings (602b) on its side wall.

8. The heat dissipation structure of a shunt according to claim 7, characterized in that: Each bottom opening (602b) is integrally connected to an outwardly extending mounting plate (602c) for securing the housing (6).

9. The heat dissipation structure of a shunt according to claim 4, characterized in that: The portion of the diverter plate (1) inside the outer shell (6) has several vertically arranged intermediate plates (3) arranged at intervals, and a through hole (4) is formed between any two adjacent intermediate plates (3).

10. The heat dissipation structure of a shunt according to claim 9, characterized in that: The grid hole (5b) of the circuit board (5) is located above the through hole (4).

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