A voltage-stabilized filter power module
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 刘华云
- Filing Date
- 2025-03-21
- Publication Date
- 2026-07-21
AI Technical Summary
The diesel or gasoline generators of large mobile engineering equipment have unstable power output, containing high-frequency noise and ripple, which affects the safety and lifespan of precision instruments.
A voltage-stabilized and filtered power supply module was designed, comprising a heat dissipation shell, a cover plate, a switch, a relay, a filter module, a delay unit, and a voltage regulator module. Through intelligent delay control and precise filtering, it provides a stable power supply.
It improves the safety and reliability of equipment, significantly extends the service life of precision instruments, and ensures a stable power supply in harsh environments.
Smart Images

Figure CN224538028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a power supply module in precision instruments, specifically a voltage-stabilized and filtered power supply module. Background Technology
[0002] Currently, large mobile engineering equipment mostly relies on diesel or gasoline generators for power. The output current and voltage of these generators are highly susceptible to fluctuations in throttle input, leading to unstable power supplies. Furthermore, these power sources often contain unknown high-frequency noise and ripple, posing a serious threat to precision instruments and potentially causing equipment damage or shortening their lifespan. Utility Model Content
[0003] In view of this, the present invention provides a voltage-stabilized and filtered power supply module with functions such as high-efficiency voltage regulation, precise filtering and intelligent delay control. It can not only effectively improve the safety and reliability of the equipment, but also significantly extend the service life of precision instruments and provide stable power supply in various harsh environments.
[0004] This utility model embodiment provides a voltage-stabilized and filtered power supply module, the power supply module comprising:
[0005] A heat dissipation housing and a cover plate, wherein the cover plate is connected to the heat dissipation housing to form a mounting cavity;
[0006] The switch is located on the cover plate;
[0007] The relay, filter module, delay unit, and voltage regulator module are respectively installed in the mounting cavity. The switch, the relay, the filter module, and the voltage regulator module are connected in sequence, and the delay unit is connected to the switch and the relay.
[0008] Optionally, the cover plate is provided with a window, and the delay device is mounted and fixed on the cover plate and located in the window.
[0009] Optionally, the filtering module is a three-stage filter.
[0010] Optionally, the voltage fluctuation range of the voltage regulator module is ±1%, the voltage regulation range is 15~36DCV, the output is 24DCV, the ripple and noise bandwidth is 20 (1±3%)MHz, and the operating temperature is -40℃ ~ +85℃.
[0011] Optionally, the delay time of the delay device can be adjusted from 0 to 999 seconds.
[0012] Optionally, the power module further includes a control module connected to the delay unit, used to control the delay unit to send a signal to the relay after a preset time delay after receiving the turn-on signal.
[0013] Optionally, the heat dissipation housing is a one-piece molded box, and the protection and waterproof rating of the heat dissipation housing is IP67.
[0014] This utility model provides a voltage-stabilized and filtered power supply module. The power supply module includes a heat dissipation shell, a cover plate, and a switch, a relay, a filter module, a timer, and a voltage regulator module mounted on both. The switch, relay, filter module, and voltage regulator module are connected sequentially, and the timer is connected to the switch and relay. The power supply module has functions such as high-efficiency voltage regulation, precise filtering, and intelligent delay control. It can not only effectively improve the safety and reliability of equipment, but also significantly extend the service life of precision instruments and provide stable power supply in various harsh environments. Attached Figure Description
[0015] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:
[0016] Figure 1 This is a schematic diagram of the power supply module for voltage regulation and filtering according to an embodiment of the present invention;
[0017] Figure 2 This is a top view of the voltage-stabilized and filtered power supply module according to an embodiment of this utility model;
[0018] Figure 3 This is a schematic diagram of the operation of the power supply module for voltage regulation and filtering according to an embodiment of this utility model.
[0019] Figure label:
[0020] 1-Heat dissipation housing; 2-Relay; 3-Filter module; 4-Delay timer; 5-Voltage regulator module; 6-Control module; 7-Cover plate; 8-Switch; 9-Window. Detailed Implementation
[0021] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.
[0022] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.
[0023] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0024] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".
[0025] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0026] Figure 1 and Figure 2 This is a schematic diagram of the power supply module for voltage regulation and filtering in this embodiment. The power supply module for voltage regulation and filtering includes a heat sink housing 1, a cover plate 7, a switch 8, a relay 2, a filter module 3, a delay unit 4, and a voltage regulator module 5. The cover plate 7 is connected above the heat sink housing 1, forming a mounting cavity. Furthermore, a sealing ring can be provided between the cover plate 7 and the heat sink housing 1. When the two are connected, the sealing ring is compressed, thereby sealing the mounting cavity and improving the dustproof and waterproof rating.
[0027] like Figure 1 As shown, the heat sink 1 is a one-piece molded box with an opening at the top, facilitating the placement of the relay 2, filter module 3, delay unit 4, and voltage regulator module 5 inside. The one-piece molding design provides the heat sink 1 with a high level of protection and waterproofing; optionally, the protection and waterproofing rating is IP67. Optionally, the bottom of the heat sink 1 is provided with multiple heat dissipation fins to increase the heat dissipation area and improve the lifespan of the power module. The cover plate 7 and the heat sink 1 are detachably connected via bolts or other means. In this embodiment, the heat sink 1 is made of aerospace-grade aluminum through milling and has a one-piece structure, which improves the overall structural strength.
[0028] Relay 2, filter module 3, delay unit 4, and voltage regulator module 5 can be installed in the mounting cavity using bolts. Specifically, cover plate 7 is provided with window 9, and delay unit 4 is fixed to the inside of cover plate 7 using bolts. Delay unit 4 is located at window 9 to display the set delay time.
[0029] like Figure 2 As shown, switch 8 is mounted on cover plate 7. Figure 3 As shown, switch 8, relay 2, filter module 3, and voltage regulator module 5 are connected in sequence, and timer 4 is connected to switch 8 and relay 2. Switch 8 is used to control the on / off state of the power input. Switch 8 is the entry point of the entire power module and is used for manual or automatic control of power connection and disconnection.
[0030] The main function of relay 2 is to control the switching between the current signal and the filter module 3 through the delay time set by the delay timer 4. That is, to control the switching of large current through small current, it can avoid the impact of current on the electrical instrument during startup and protect the service life of the electrical instrument.
[0031] The filter module 3 removes high-frequency ripple and noise from the current, preventing high-frequency current from damaging the voltage regulator module of precision electrical instruments. Preferably, the filter module 3 is a three-stage filter, improving the applicability and filtering effect of the power supply module.
[0032] The delay unit 4 is used to control the relay 2 to delay the supply of power to the circuit, ensuring that various electrical instruments can perform specific functions at the optimal time, thus improving the system's reliability, efficiency, and safety. For example, the delay unit 4 ensures that electrical instruments do not start immediately after power is connected, but wait for a period of time (such as a few seconds to a few minutes), which helps protect the circuit from sudden voltage surges. In other words, the delay unit 4 is used to adjust how long it takes for power to be output after the power is connected; the delay time of the delay unit 4 can be adjusted from 0 to 999 seconds.
[0033] The voltage regulator module 5 is used to ensure the stability of the output voltage. Even if the input voltage fluctuates or the load conditions change, it can keep the output voltage within a set range. The voltage fluctuation range of the voltage regulator module 5 is ±1%, the voltage regulation range is 15~36DCV, the output is 24DCV, the ripple and noise bandwidth is 20 (1±3%)MHz, and the operating temperature is -40℃ ~ +85℃.
[0034] In this embodiment, the power module also includes a control module 6, which is mounted on the heat dissipation housing 1. The control module 6 is connected to the delay unit 4 and is used to control the delay unit 4 to send a signal to the relay 2 after a preset delay following receiving an activation signal. That is, the control module 6 controls the delay time of the delay unit 4 to control the energizing time of the relay 2. The control module 6 can also control the output of abnormal data, etc. When an abnormal situation occurs, the control module 6 records it and outputs it to the entire power system via the network.
[0035] Control module 6 can be used to set the time parameters of the delay unit, control the operation of the relays, etc. The control module typically needs to communicate with other parts, such as adjusting the output of the voltage regulator module by monitoring its status, or triggering relays based on specific conditions. Control module 6 has short-circuit protection, overload protection, and overheat protection, and also features self-recovery functionality.
[0036] When switch 8 turns on, the input power is supplied to relay 2 and timer 4. Timer 4 starts timing upon receiving the input power signal. After the delay time, timer 4 sends a control signal to relay 2, which then turns on to output power to filter module 3. Filter module 3 removes noise and interference from the input power, ensuring a clean power supply for subsequent circuits. The filtered input power is then sent to voltage regulator module 5, which adjusts the unstable input voltage to a constant output voltage to meet the needs of the electrical instrument (i.e., the load) and protect it from voltage fluctuations.
[0037] The power supply module with voltage regulation and filtering in this embodiment has functions such as high-efficiency voltage regulation, precise filtering and intelligent delay control. It can not only effectively improve the safety and reliability of the equipment, but also significantly extend the service life of precision instruments and provide stable power protection in various harsh environments.
[0038] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A voltage-stabilized and filtered power supply module, characterized in that, The power module includes: A heat dissipation shell (1) and a cover plate (7), wherein the cover plate (7) is connected to the heat dissipation shell (1) to form an installation cavity; A switch (8) is provided on the cover plate (7); The relay (2), filter module (3), delay unit (4) and voltage regulator module (5) are respectively installed in the mounting cavity. The switch (8), the relay (2), the filter module (3) and the voltage regulator module (5) are connected in sequence. The delay unit (4) is connected to the switch (8) and the relay (2).
2. The power supply module for voltage regulation and filtering according to claim 1, characterized in that, The cover plate (7) is provided with a window (9), and the delay device (4) is installed and fixed on the cover plate (7) and located in the window (9).
3. The power supply module for voltage regulation and filtering according to claim 1, characterized in that, The filtering module (3) is a three-stage filter.
4. The power supply module for voltage regulation and filtering according to claim 1, characterized in that, The voltage fluctuation range of the voltage regulator module (5) is ±1%, the voltage regulation range is 15~36DCV, the output is 24DCV, the ripple and noise bandwidth is 20(1±3%)MHz, and the applicable temperature is -40℃~+85℃.
5. The power supply module for voltage regulation and filtering according to claim 1, characterized in that, The delay time of the delay device (4) can be adjusted from 0 to 999 seconds.
6. The power supply module for voltage regulation and filtering according to claim 1, characterized in that, The power module also includes a control module (6), which is connected to the delay unit (4) and is used to control the delay unit (4) to send a signal to the relay after a preset time delay after receiving the turn-on signal.
7. The power supply module for voltage regulation and filtering according to claim 1, characterized in that, The heat dissipation shell (1) is an integrally molded box, and the protection level and waterproof level of the heat dissipation shell (1) are IP67.