J540B0 power supply circuit board with integrated voltage protection
By integrating a voltage protection housing and a module mounting base, the design solves the problems of loose structure and unstable connection of the power circuit board during voltage surges, improving the stability and heat dissipation performance of the power system, making it suitable for high-reliability applications.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU JIERUITONG ELECTRONICS CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-14
AI Technical Summary
Existing power circuit boards are loosely structured, have complex and unstable connections, and are prone to voltage fluctuations or surges, which affects the stability and safety of the power system.
A J540B0 power circuit board with integrated voltage protection was designed. The circuit board body has a pre-installed slot and a voltage protection housing is embedded in it. The housing is stable by using a module mounting base and interference fit. The ventilation holes and thermal pads are combined to improve heat dissipation and anti-interference capabilities. The slot fit and screw connection are used to ensure structural stability.
It achieves module-level embedded installation, improves the overall stability, anti-interference ability and heat dissipation performance of the power circuit board, and solves the problems of loose structure and weak connection, making it suitable for high reliability applications.
Smart Images

Figure CN224124313U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power supply device structure technology, and in particular to a J540B0 power circuit board with integrated voltage protection. Background Technology
[0002] Existing power circuit boards typically rely on discrete external protection modules to cope with voltage changes or surges. These modules not only occupy a large amount of space and have complex connections, but are also prone to loosening, poor contact, or even falling off during long-term operation, affecting the stability and safety of the entire power system. Summary of the Invention
[0003] The purpose of this utility model is to provide a J540B0 power circuit board with integrated voltage protection to solve the problems of existing circuit boards such as dispersed structure, unstable voltage protection, and loose structure.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a J540B0 power circuit board with integrated voltage protection, comprising a circuit board body, characterized in that: the circuit board body is disposed on a heat dissipation base plate, the circuit board body is provided with a mounting slot, a voltage protection housing is disposed in the mounting slot, and the voltage protection housing is mounted on the circuit board body through a module fixing seat.
[0005] Preferably, the voltage protection housing and the mounting slot are interference fit to prevent the housing from loosening during use.
[0006] Preferably, the module mounting base is an L-shaped or U-shaped limiting structure, which is connected to the circuit board body by screws to improve the positioning stability.
[0007] Preferably, the voltage protection housing is provided with ventilation holes to improve the heat dissipation efficiency of the internal components.
[0008] Preferably, a thermally conductive pad is provided between the heat dissipation base plate and the circuit board body to conduct heat to the heat dissipation base plate.
[0009] Preferably, the circuit board body is provided with multiple mounting holes to facilitate docking and fixing with other equipment structures.
[0010] Preferably, the voltage protection housing is made of flame-retardant material to improve safety performance.
[0011] Preferably, the outer side of the module mounting base is provided with a buffer pad to absorb external impacts.
[0012] Preferably, the circuit board body and the heat dissipation base plate are connected by a combination of slot and screw to ensure structural stability.
[0013] The beneficial effects of this utility model are: by pre-cutting slots on the circuit board body and integrating and embedding voltage protection shells, module-level embedded installation is achieved. The overall layout is compact and reasonable, avoiding the problems of loose connection and loose structure of external modules, improving overall stability, anti-interference ability and heat dissipation performance, and is suitable for applications with high requirements for power system reliability. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 Schematic diagram of the embedded structure for voltage protection housing;
[0016] Figure 3 A schematic diagram of the connection structure between the module mounting bracket and the circuit board body;
[0017] Figure 4 This is a top view of the heat dissipation base plate structure;
[0018] Figure 5 This is a cross-sectional view of the circuit board body and the heat sink base plate.
[0019] Reference numerals in the attached diagram: 1. Circuit board body; 2. Heat dissipation base plate; 3. Mounting slot; 4. Voltage protection housing; 5. Module mounting base; 6. Buffer pad; 7. Ventilation hole; 8. Thermal pad; 9. Mounting hole. Detailed Implementation
[0020] like Figures 1-5 As shown, a J540B0 power circuit board with integrated voltage protection includes a circuit board body 1, which is fixed on a heat dissipation base plate 2, and the circuit board body 1 is provided with a mounting slot 3.
[0021] The mounting slot 3 is embedded with a voltage protection housing 4. The shape of the housing 4 is interference-fitted with the slot 3 to prevent it from loosening due to vibration or transportation. The depth of the mounting slot 3 matches the thickness of the voltage protection housing 4 to ensure a stable fit.
[0022] The housing 4 is limited by the module fixing seat 5, which is preferably a U-shaped structure. One end of the module fixing seat 5 is locked to the circuit board body 1 by screws, and the other end covers the side of the housing.
[0023] The voltage protection housing 4 is provided with ventilation holes 7, which are several circular or strip-shaped openings to improve the internal heat exchange efficiency. The ventilation holes are located on the upper and side parts of the housing to form air convection channels and accelerate the discharge of internal heat.
[0024] A thermal pad 8 is sandwiched between the circuit board body 1 and the heat sink base plate 2 to conduct heat to the heat sink base plate 2.
[0025] The circuit board body 1 is provided with multiple mounting holes 9, which can be used for fixed connection with other structures such as industrial frames, housings, and power supply components.
[0026] The outer side of the module mounting base 5 is provided with a buffer pad 6 to absorb external impact and improve shock resistance.
[0027] The circuit board body 1 and the heat dissipation base plate 2 are connected by a combination of slot and screw to ensure that the overall installation is firm and to avoid structural displacement.
[0028] The above are merely preferred embodiments of this utility model. For those skilled in the art, any equivalent modifications and substitutions to the structure and dimensions made without departing from the principle of this utility model are within the protection scope of this utility model.
Claims
1. A J540B0 power circuit board with integrated voltage protection, comprising a circuit board body, characterized in that: The circuit board body is mounted on a heat dissipation base plate. The circuit board body has a mounting slot, and a voltage protection housing is installed in the mounting slot. The voltage protection housing is mounted on the circuit board body through a module mounting bracket.
2. The power circuit board according to claim 1, characterized in that: The voltage protection housing and the mounting slot are interference-fitted to prevent the housing from loosening.
3. The power circuit board according to claim 1, characterized in that: The module mounting base is an L-shaped or U-shaped limiting structure and is connected to the circuit board body by screws.
4. The power circuit board according to claim 1, characterized in that: The voltage protection housing is equipped with ventilation holes to improve the heat dissipation efficiency of the internal components.
5. The power circuit board according to claim 1, characterized in that: A thermal pad is provided between the heat dissipation base plate and the circuit board body.
6. The power circuit board according to claim 1, characterized in that: The circuit board body is provided with multiple mounting holes for docking and fixing with external equipment structures.
7. The power circuit board according to claim 1, characterized in that: The voltage protection housing is made of flame-retardant material.
8. The power circuit board according to claim 1, characterized in that: The module mounting base is equipped with a buffer pad on the outside to reduce external impact.
9. The power circuit board according to claim 1, characterized in that: The connection between the circuit board body and the heat sink base plate is a combination of slot fitting and screw connection.