Novel DC-DC power supply module
By employing a limit design with screw, push block, and wedge block structures, along with a servo motor-driven ventilation system, the problems of loose connections and temperature rise in DC-DC power modules under vibration have been solved. This achieves stable installation and efficient heat dissipation, thereby improving the reliability and lifespan of the power modules.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-03-31
AI Technical Summary
Existing DC-DC power modules are prone to shaking under external vibration, which can cause the pins to loosen and the circuit board to become loose, affecting voltage stability and failing to effectively reduce the temperature of internal components, thus increasing the risk of failure.
It adopts a screw, push block and wedge block structure. The screw moves down by turning the knob, the push block moves down along the inclined surface of the wedge block, and the wedge block is limited close to the outer wall of the module. Combined with the active rod and driven rod driven by the servo motor, it drives the flow fan to carry out efficient ventilation and reduce the internal temperature.
It achieves stable installation of DC-DC power modules, avoids loose connections, ensures stable electrical performance, and reduces component temperature through efficient air convection channels, slowing down aging and improving performance.
Smart Images

Figure CN224068532U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power module technology, and in particular to a novel DC-DC power module. Background Technology
[0002] As is well known, a DC-DC power module is an electronic device that converts direct current (DC) into DC power of different voltage levels. Through specific circuit topology and control methods, it adjusts parameters such as voltage and current of the input DC power to output stable DC power that meets the needs of different electronic devices. It plays a vital role in various electronic devices, enabling adaptation between different voltage sources and loads, such as converting the fixed voltage of a battery into the precise operating voltage required by the chip, ensuring the stable operation of electronic devices. The modules on a DC-DC power module are all mounted on a printed circuit board and exposed to the air, making them susceptible to damage. Usually, a protective box is installed on the outside of the DC-DC power module.
[0003] DC-DC power modules are prone to shaking inside their protective enclosures due to external environmental vibrations. This shaking and impact can loosen the connection points between the power module's pins and the circuit board, potentially causing an increase in voltage drop, unstable output voltage, and affecting the normal operation of the load equipment. Therefore, technical improvements are urgently needed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel DC-DC power module. When in use, rotating the knob moves the screw downwards, simultaneously causing the push block to move downwards. The push block moves down the inclined surface of the wedge, bringing it closer to the outer wall of the module. A pad then limits its position, ensuring the DC-DC module remains stable and preventing loosening of internal circuit connections due to shaking. This ensures stable electrical performance and reduces the probability of malfunctions.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A novel DC-DC power module includes a base plate. Mounting boxes are fixedly connected to both sides of the upper surface of the base plate. A screw is threadedly connected to the inner wall of the mounting box. A push block is rotatably connected to the lower end of the screw. The outer wall of the push block fits against the inner wall of the mounting box. Sliding grooves are formed on both sides of the middle of the upper surface of the base plate. A return spring is fixedly connected to the inner wall of the opposite side of the sliding groove. A slider is fixedly connected to the outer wall of the adjacent side of the return spring. A wedge is fixedly connected to the upper end of the slider.
[0007] The four corners of the upper surface of the base plate are bolted to the outer shell. Ventilation openings are provided on both sides of the upper surface of the outer shell. The upper and lower ends of the inner wall of the ventilation openings are fixedly connected to the mounting plate. A servo motor is fixedly connected to the middle of the top surface of the mounting plate on one side. The output end of the servo motor is fixedly connected to the drive rod. A driven rod is rotatably connected to the middle of the outer wall of the adjacent end of the mounting plate on the other side. The lower ends of the outer walls of the drive rod and the driven rod are fixedly connected to the flow fan.
[0008] Compared with existing DC-DC power modules, this DC-DC power module, through the above technical solution, allows for easy monitoring of the internal temperature via a temperature monitor. When the set threshold is reached, the servo motor is activated to rotate the active rod, which in turn rotates the transmission wheel on one side. This causes the driven rod on the other side to rotate as well, driving two sets of ventilation fans for ventilation. Combined with its flow channels, it forms an efficient air convection channel, quickly removing heat and effectively reducing the operating temperature of the internal components of the power module, slowing down the aging of the components, and demonstrating high practical performance.
[0009] Furthermore, a power module is placed in the middle of the upper surface of the base plate, and multiple pins are provided at the lower end of the power module;
[0010] The above technical solution facilitates the installation of the module through the power supply module and pins.
[0011] Furthermore, each screw has a knob fixedly connected to its upper end;
[0012] The above technical solution allows the screw to be easily rotated via a knob.
[0013] Furthermore, a pad is fixedly connected to the outer wall of each adjacent side of the wedge block;
[0014] The above technical solution allows for the use of a pad to limit the movement of the module while preventing damage.
[0015] Furthermore, a transmission wheel is sleeved on the upper end of the outer wall of both the driving rod and the driven rod, and a synchronous belt is sleeved on the outer wall of each transmission wheel;
[0016] With the above technical solution, a synchronous belt is fitted on the outer wall of each transmission wheel, which makes it easy for the driving rod and the driven rod to rotate together.
[0017] Furthermore, flow grooves are provided on the lower part of both sides of the outer wall of the outer shell, and dust filters are provided on the inner walls of the ventilation openings and flow grooves.
[0018] The above technical solution uses a dust filter to prevent external dust from entering.
[0019] Furthermore, the outer walls of the adjacent sides of the push block are respectively in contact with the inclined surface of the wedge block;
[0020] The above technical solution facilitates the movement of the wedge block by using the pusher block.
[0021] Furthermore, a temperature monitor is provided at the upper end of the middle part of the inner wall of the outer casing;
[0022] The above technical solution allows for real-time monitoring of the internal temperature using a temperature monitor.
[0023] This utility model has the following beneficial effects:
[0024] 1. This utility model proposes a novel DC-DC power module. Compared with existing DC-DC power modules, when this DC-DC power module is in use, rotating the knob drives the screw to move downwards, which in turn drives the push block to move downwards continuously. At this time, the push block moves downwards along the inclined surface of the wedge block, thereby driving the wedge block to move closer and closer to the outer wall of the module. Subsequently, the pad plate limits its position, which can keep the DC-DC module stable, avoid loosening of internal circuit connection points due to shaking, ensure stable electrical performance, and reduce the probability of failure.
[0025] 2. This utility model proposes a novel DC-DC power module. Compared with existing DC-DC power modules, this DC-DC power module allows for easy monitoring of the internal temperature via a temperature monitor. When the set threshold is reached, the servo motor is activated to drive the active rod to rotate, which in turn drives the transmission wheel on one side to rotate. This causes the driven rod on the other side to rotate as well, enabling two sets of ventilation fans to ventilate. Combined with its flow channels, it forms an efficient air convection channel, quickly removing heat and effectively reducing the operating temperature of the internal components of the power module, slowing down the aging of the components, and demonstrating high practical performance. Attached Figure Description
[0026] Figure 1 This is an isometric view of a novel DC-DC power supply module proposed in this utility model;
[0027] Figure 2 This is an exploded view of a novel DC-DC power module proposed in this utility model.
[0028] Figure 3 This is an exploded view of the mounting box in a novel DC-DC power module proposed in this utility model.
[0029] Figure 4 for Figure 3 Enlarged view of point B in the middle;
[0030] Figure 5 This is an isometric view of the housing of a novel DC-DC power module proposed in this utility model.
[0031] Figure 6 for Figure 5 Enlarged view of point A in the middle.
[0032] Legend:
[0033] 1. Base plate; 11. Mounting box; 12. Screw; 13. Knob; 14. Push block; 15. Slide groove; 16. Return spring; 17. Slider; 18. Wedge; 19. Pad; 2. Housing; 21. Vent; 211. Mounting plate; 22. Servo motor; 23. Driving rod; 24. Driven rod; 25. Flow fan; 26. Drive wheel; 27. Synchronous belt; 28. Flow groove; 29. Dust filter; 3. Power module; 31. Pin; 4. Temperature monitor. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Reference Figure 1-6 An embodiment of this utility model is provided: a novel DC-DC power module, including a base plate 1, mounting boxes 11 are fixedly connected to both sides of the upper surface of the base plate 1, a screw 12 is threadedly connected to the inner wall of the mounting box 11, a push block 14 is rotatably connected to the lower end of the screw 12, the outer wall of the push block 14 is in contact with the inner wall of the mounting box 11, a sliding groove 15 is provided on both sides of the middle part of the upper surface of the base plate 1, a return spring 16 is fixedly connected to the inner wall of the opposite side of the sliding groove 15, a slider 17 is fixedly connected to the outer wall of the adjacent side of the return spring 16, and a wedge 18 is fixedly connected to the upper end of the slider 17.
[0036] The four corners of the upper surface of the base plate 1 are bolted to the outer shell 2. Ventilation openings 21 are provided on both sides of the upper surface of the outer shell 2. The upper and lower ends of the inner wall of the ventilation opening 21 are fixedly connected to the mounting plate 211. The middle of the top surface of the mounting plate 211 on one side is fixedly connected to the servo motor 22. The output end of the servo motor 22 is fixedly connected to the drive rod 23. The middle of the outer wall of the adjacent end of the mounting plate 211 on the other side is rotatably connected to the driven rod 24. The lower ends of the outer walls of the drive rod 23 and the driven rod 24 are fixedly connected to the flow fan 25.
[0037] Compared to existing DC-DC power modules, this DC-DC power module allows for easy monitoring of the internal temperature via a temperature monitor 4. When the set threshold is reached, the servo motor 22 is activated, driving the active rod 23 to rotate, which in turn drives the transmission wheel 26 on one side to rotate. This causes the driven rod 24 on the other side to rotate as well, driving two sets of ventilation fans 25 for ventilation. Together with the flow groove 28, they form an efficient air convection channel, quickly removing heat and effectively reducing the operating temperature of the internal components of the power module 3, slowing down the aging of the components, and demonstrating high practical performance.
[0038] A power module 3 is placed in the middle of the upper surface of the base plate 1, and multiple pins 31 are provided at the lower end of the power module 3.
[0039] The power supply module 3 and pin 31 facilitate the installation of the module.
[0040] A knob 13 is fixedly connected to the upper end of each screw 12;
[0041] The screw 12 can be rotated by the knob 13.
[0042] The outer walls of adjacent sides of the wedge block 18 are fixedly connected with pads 19;
[0043] The pad 19 facilitates the limiting of the module while preventing damage.
[0044] The upper ends of the outer walls of both the driving rod 23 and the driven rod 24 are fitted with transmission wheels 26, and the outer walls of the transmission wheels 26 are fitted with synchronous belts 27.
[0045] Synchronous belts 27 are fitted onto the outer walls of the transmission wheels 26 to facilitate the rotation of the driving rod 23 and the driven rod 24 together.
[0046] The lower part of both sides of the outer wall of the outer shell 2 is provided with a flow groove 28, and the inner wall of the ventilation port 21 and the flow groove 28 is provided with a dust filter screen 29.
[0047] The dust filter 29 helps prevent external dust from entering.
[0048] The outer walls of the adjacent sides of the push block 14 are respectively attached to the inclined surfaces of the wedge block 18;
[0049] The pusher block 14 facilitates the movement of the wedge block 18.
[0050] A temperature monitor 4 is installed at the upper end of the middle of the inner wall of the outer casing 2;
[0051] Temperature monitor 4 facilitates real-time monitoring of the internal temperature.
[0052] Working principle: When in use, rotating the knob 13 drives the screw 12 to rotate, and the screw 12 pushes the push block 14 to move down. The push block 14 moves along the inclined surface of the wedge block 18, so that the wedge block 18 approaches the power module 3 under the action of the return spring 16. The pad 19 limits the position and prevents damage to the module, achieving a stable installation. Then, the outer shell 2 and the base plate 1 are installed by bolts. The temperature monitor 4 monitors the internal temperature of the power module 3 in real time. When the temperature reaches the set threshold, the servo motor 22 starts, and the active rod 23 at its output end rotates, driving the transmission wheel 26 on one side to rotate. Through the synchronous belt 27, the driven rod 24 on the other side rotates synchronously, thereby driving the two sets of circulation fans 25 to rotate. In conjunction with the ventilation port 21 and circulation groove 28 on the outer shell 2, they form an efficient air convection channel, quickly removing the heat generated by the power module 3 and reducing the operating temperature of the internal components. The dust filter 29 can prevent external dust from entering the module and affecting its performance.
[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel DC-DC power supply module comprising a base plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected with mounting box (11), the inner wall of mounting box (11) is threadedly connected with screw rod (12), the lower end of screw rod (12) is rotatably connected with push block (14), the outer wall of push block (14) is fitted with the inner wall of mounting box (11), the upper surface of bottom plate (1) is provided with sliding slot (15) on both sides of the middle part, the inner wall of the opposite side of sliding slot (15) is fixedly connected with reset spring (16), the outer wall of the adjacent side of reset spring (16) is fixedly connected with sliding block (17), the upper end of sliding block (17) is fixedly connected with wedge block (18). The four corners of the upper surface of the bottom plate (1) are connected with the shell (2) by bolts, the upper surface of the shell (2) is provided with ventilation opening (21) on both sides, the upper end and the lower end of the inner wall of ventilation opening (21) are fixedly connected with mounting disc (211), the top surface of the mounting disc (211) is fixedly connected with servo motor (22) on one side of the upper end, the output end of servo motor (22) is fixedly connected with driving rod (23), the outer wall of the adjacent end of the mounting disc (211) is rotatably connected with driven rod (24) on the other side, the lower end of the outer wall of driving rod (23) and driven rod (24) is fixedly connected with through fan (25).
2. A novel DC-DC power supply module according to claim 1, characterized by: The upper surface of the bottom plate (1) is placed with power module (3), the lower end of power module (3) is provided with a plurality of pins (31).
3. A novel DC-DC power supply module according to claim 1, characterized by: The upper end of the screw rod (12) is fixedly connected with knob (13).
4. A novel DC-DC power supply module according to claim 1, characterized by: The outer wall of the adjacent side of the wedge block (18) is fixedly connected with the base plate (19).
5. A novel DC-DC power supply module according to claim 1, characterized by: The outer wall of the upper end of the driving rod (23) and the driven rod (24) is sleeved with transmission wheel (26), the outer wall of transmission wheel (26) is sleeved with synchronous belt (27).
6. A novel DC-DC power supply module according to claim 1, characterized by: The lower part of the outer wall of the shell (2) is provided with through groove (28) on both sides, the inner wall of ventilation opening (21) and through groove (28) is provided with dust filter screen (29).
7. A novel DC-DC power supply module according to claim 1, characterized by: The outer wall of the adjacent side of the push block (14) is respectively fitted with the inclined surface of the wedge block (18).
8. A novel DC-DC power supply module according to claim 1, characterized by: The upper end of the inner wall of the shell (2) is provided with temperature monitor (4). The upper end of the inner wall of the shell (2) is provided with temperature monitor (4).