High-performance PCBA board for heavy-duty locomotive cabin control module

Abstract

The utility model relates to the technical field of PCBA boards, in particular to a high-performance PCBA board for a heavy-duty locomotive cabin control module. The device comprises a plate base assembly, a shell is arranged on one side of the plate base assembly, and a plurality of cable gland heads are installed on the side wall of the shell through threads. According to the utility model, the wire passes through the rubber ring in the cable and is connected with the main board, and the plurality of fixing screws are sleeved with the springs and sequentially pass through the main board and the heat-conducting fins to be connected with the heat dissipation plate, so that heat generated by electronic elements on the main board can be dissipated through the heat dissipation plate; the situation that the use performance of the PCBA board is reduced or even damaged due to too high temperature is avoided, the side wall of the cable gland extrudes the rubber ring by screwing the cable gland so that the rubber ring can make close contact with the electric wire, the mainboard and the electric wire are sealed through the arranged annular ring and the cable gland, dust is prevented from entering the shell, and the service life of the PCBA board is prolonged. Therefore, the short circuit between the electronic components caused by dust accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBA boards, and specifically to a high-performance PCBA board for a cockpit control module of a heavy-haul locomotive. Background Technique

[0002] A heavy-haul locomotive is a large locomotive capable of transporting a large amount of goods or passengers on a railway. Compared with other types of locomotives, a heavy-haul locomotive can carry a greater load and is more suitable for application in relatively harsh environments. Heavy-haul locomotives are usually large in size, have strong traction ability, and can travel on relatively poor road conditions. The working environment of heavy-haul locomotives usually has a large amount of dust. Currently, various electronic components are arranged on the PCBA board of heavy-haul locomotives. Among them, the problem of chip heating is particularly serious. There are a large number of electronic components or other parts arranged around the chip, and the distribution interval is generally very small. The heat generated by the chip will cause the temperature of these devices to rise, which will not only affect the performance of the main PCBA board but also reduce the lifespan of the entire main PCBA board. Operating in an environment with a large amount of dust exacerbates the heating problem, and at the same time, a large amount of dust is likely to cause short circuits in the electronic components on the PCBA board. Content of the Utility Model

[0003] The purpose of the utility model is to provide a high-performance PCBA board for a cockpit control module of a heavy-haul locomotive to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides a high-performance PCBA board for a cockpit control module of a heavy-haul locomotive, including a board seat assembly. One side of the board seat assembly is provided with a housing. The board seat assembly includes a heat dissipation plate. The side of the heat dissipation plate away from the housing is set as a toothed plate. One side of the heat dissipation plate away from the toothed plate is installed with a heat conduction sheet. One side of the heat conduction sheet away from the heat dissipation plate is installed with a main board. Electronic components are installed on the side of the main board away from the heat dissipation plate. There are several fixing screws on the side away from the heat dissipation plate. The several fixing screws sequentially penetrate through the main board and the heat conduction sheet and are threadedly connected to the heat dissipation plate.

[0005] As a further improvement of this technical solution, a spring is arranged between the several fixing screws and the main board, and the spring is sleeved on the screw rod of the fixing screw.

[0006] As a further improvement of this technical solution, the side of the housing close to the heat dissipation plate is provided with a convex edge, and the convex edge is fixedly connected to the heat dissipation plate by screws.

[0007] As a further improvement of this technical solution, semi-circular grooves are opened on both sides of the convex edge of the housing and the heat dissipation plate close to each other. An annular ring is arranged between the housing and the heat dissipation plate, and the annular ring is clamped in the semi-circular grooves of the housing and the heat dissipation plate.

[0008] As a further improvement of this technical solution, several gland heads are fixedly connected to the side wall of the housing. The gland heads are fixed to the side wall of the housing by threads, and rubber rings are arranged in the gland heads.

[0009] As a further improvement of this technical solution, the wire passes through several gland heads and is connected to the main board inside the housing.

[0010] As a further improvement of this technical solution, the housing and the heat dissipation plate are made of heat-conducting metal materials, the annular ring is made of sealing rubber materials, and the heat-conducting sheet is made of heat-conducting insulating materials.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] In this high-performance PCBA board for the cockpit control module of the heavy-haul locomotive, the wire passes through the rubber ring in the gland head and is connected to the main board. A number of fixing screws are sleeved with springs and sequentially penetrate through the main board and the heat-conducting sheet and are connected to the heat dissipation plate, so that the heat generated by the electronic components on the main board can be dissipated through the heat dissipation plate, avoiding the situation that the performance of the PCBA board decreases or even is damaged due to too high temperature. By tightening the gland head, the side wall of the gland head squeezes the rubber ring, so that the rubber ring is in close contact with the wire. The main board and the wire are sealed by the arranged annular ring and the gland head, preventing dust from entering the inside of the housing, and thus avoiding short circuits between electronic components caused by dust accumulation. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the present utility model;

[0014] Figure 2 is the exploded structural schematic diagram of the board seat assembly of the utility model.

[0015] The meanings of the various reference numerals in the figure are as follows:

[0016] 1. Board seat assembly; 11. Heat dissipation plate; 12. Annular ring; 13. Heat-conducting sheet; 14. Main board; 15. Fixing screw; 16. Spring;

[0017] 2. Housing;

[0018] 3. Gland head. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0021] Embodiment 1

[0022] Please refer to Figure 1 - Figure 2 As shown in the figure, this embodiment provides a high-performance PCBA board for the cockpit control module of a heavy-duty locomotive, including a board seat assembly 1. On one side of the board seat assembly 1, there is a housing 2. A plurality of gland heads 3 are installed on the side wall of the housing 2 by means of threads. The electric wire passes through the gland head 3 and is connected to the PCBA board installed inside the housing 2. The PCBA board is protected by the housing 2 to prevent dust from accumulating on the PCBA board and causing short circuits or the heat on the PCBA board not being able to dissipate. The rubber ring provided in the gland head 3 seals the electric wire to prevent dust from entering the inside of the housing 2 through the gap between the gland head 3 and the electric wire. The board seat assembly 1 includes a heat dissipation plate 11. On one side of the heat dissipation plate 11, there is a main board 14. Electronic components are installed on the main board 14. The electric wire passing through the gland head 3 is connected to the main board 14. The side of the heat dissipation plate 11 away from the housing 2 is provided with a toothed plate. The heat dissipation plate 11 made of a heat-conducting metal material conducts the heat on the PCBA board to the air. The toothed plate provided increases the contact area between the heat dissipation plate 11 and the air, thereby more effectively reducing the temperature on the PCBA. On the side of the housing 2 close to the heat dissipation plate 11, there is a convex edge. The convex edge on the housing 2 and the heat dissipation plate 11 are connected by screws, so that the heat dissipation plate 11 and the housing 2 are tightly connected. While protecting the main board 14, the heat generated by the main board 14 is transferred from the inside of the housing 2 to the outside through the housing 2 and the heat dissipation plate 11 made of metal materials. On the sides of the convex edge of the housing 2 and the heat dissipation plate 11 close to each other, there are semi-circular grooves. An annular ring 12 is clamped in the semi-circular grooves. The mutual extrusion between the housing 2 and the heat dissipation plate 11 deforms the annular ring 12 in the two semi-circular grooves, thereby filling the semi-circular grooves and making the connection between the housing 2 and the heat dissipation plate 11 more tight.

[0023] On the side of the annular ring 12 away from the heat sink 11, a heat conducting sheet 13 made of heat conducting and insulating material is provided. The main board 14 and the heat sink 11 are connected through the heat conducting sheet 13, so that the heat generated by the electronic components on the main board 14 can be transferred to the heat sink 11 more quickly for dissipation. At the same time, it also avoids the short circuit of the electronic components. On the side of the main board 14 away from the heat sink 11, several fixing screws 15 are provided. The fixing screws 15 sequentially pass through the main board 14 and the heat conducting sheet 13 and are connected to the heat sink 11 through threads, making the contact between the main board 14, the heat conducting sheet 13 and the heat sink 11 closer. While ensuring the heat transfer efficiency, it also makes the structure inside the housing 2 more stable. Between several fixing screws 15 and the main board 14, springs 16 are provided. The springs 16 are sleeved on the screw rods of the fixing screws 15. When screwing several fixing screws 15 into the heat sink 11 through several springs 16, the pressure of the fixing screws 15 on the main board 14 is dispersed, avoiding crushing the main board 14 by the fixing screws 15 and making the main board 14 contact the heat conducting sheet 13 more evenly.

[0024] When the high-performance PCBA board for the heavy-duty locomotive cockpit control module of this embodiment is specifically used, the wire is passed through the rubber ring in the gland 3 and connected to the main board 14. Several fixing screws 15 are sleeved with springs 16 and sequentially pass through the main board 14 and the heat conducting sheet 13 and are connected to the heat sink 11, so that the heat generated by the electronic components on the main board 14 can be dissipated through the heat sink 11, avoiding the situation that the use performance of the PCBA board deteriorates or even is damaged due to excessive temperature. By tightening the gland 3, the side wall of the gland 3 squeezes the rubber ring so that the rubber ring is in close contact with the wire. Through the provided annular ring 12 and the gland 3, the main board 14 and the wire are sealed, avoiding dust entering the inside of the housing 2, and thus avoiding short circuits between electronic components caused by dust accumulation.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-performance PCBA board for a heavy-duty locomotive cockpit control module, comprising a board base assembly (1), a housing (2) being provided on one side of the board base assembly (1), characterized in that: The plate seat assembly (1) comprises a heat sink (11), a side of the heat sink (11) away from the housing (2) being arranged as a toothed plate, a heat conducting sheet (13) being installed on the side of the heat sink (11) away from the toothed plate, a main board (14) being installed on the side of the heat conducting sheet (13) away from the heat sink (11), electronic components being installed on the side of the main board (14) away from the heat sink (11), a plurality of fixing screws (15) being arranged on the side away from the heat sink (11), the plurality of fixing screws (15) being sequentially passed through the main board (14) and the heat conducting sheet (13) and being connected to the heat sink (11) by threads.

2. The high-performance PCBA board for the heavy-duty locomotive cockpit control module according to claim 1 is characterized in that: A spring (16) is arranged between the plurality of fixing screws (15) and the main board (14), and the spring (16) is sleeved on the screw rod of the fixing screw (15).

3. The high-performance PCBA board for the heavy-duty locomotive cockpit control module according to claim 1 is characterized in that: A convex edge is provided on one side of the housing (2) close to the heat sink (11), and the convex edge is fixedly connected to the heat sink (11) by means of screws.

4. The high-performance PCBA board for the heavy-duty locomotive cockpit control module according to claim 1 is characterized in that: A semicircular groove is provided on the convex edge of the shell (2) and the side where the heat sink (11) is close to each other, and an annular ring (12) is provided between the shell (2) and the heat sink (11), and the annular ring (12) is clamped in the semicircular grooves of the shell (2) and the heat sink (11).

5. The high-performance PCBA board for the heavy-duty locomotive cockpit control module according to claim 1 is characterized in that: A plurality of cable glands (3) are fixedly connected to the side wall of the shell (2); the cable glands (3) are fixed to the side wall of the shell (2) via threads; and a rubber ring is arranged in the cable glands (3).

6. The high-performance PCBA board for the heavy-duty locomotive cockpit control module according to claim 5 is characterized in that: The electric wires pass through a plurality of the cable glands (3) and are connected to a main board (14) inside the housing (2).

7. The high-performance PCBA board for the heavy-duty locomotive cockpit control module according to claim 4 is characterized in that: The housing (2) and the heat sink (11) are made of heat-conducting metal material, the annular ring (12) is made of sealing rubber material, and the heat-conducting sheet (13) is made of heat-conducting insulating material.

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