Temperature control type customized power supply

Abstract

The utility model provides a temperature control type customized power supply, which relates to the field of temperature control type power supplies, and comprises a shell assembly, the shell assembly comprises a bottom shell and an end cover, a power supply module is arranged in an inner cavity of the bottom shell, and the power supply module comprises a PCB (printed circuit board), a main circuit, a detection circuit, a control circuit, an auxiliary circuit and radiating fins. The PCB is in threaded connection with the inner wall of the bottom shell through bolts. The main circuit, the detection circuit, the control circuit, the auxiliary circuit and the cooling fins are all installed on the surface of the PCB. According to the utility model, through the arrangement of the detection circuit and the control circuit, the effect of detecting operation parameters in the power supply circuit is achieved, and the temperature sensor, the sampling resistor, the divider resistor and the photoelectric coupler are respectively used for detecting the temperature, current and voltage in the output and input circuit and transmitting data to the PWM control chip. Therefore, the detection of the circuit can be realized to ensure that the power supply module works in a normal range.

Description

Technical Field

[0001] The utility model belongs to the field of temperature-controlled power supplies, in particular to a temperature-controlled customized power supply. Background Art

[0002] The power module is an important component of power electronic equipment. It is mainly responsible for converting the input voltage of the power supply into the required output voltage and current to meet the working requirements of various electronic equipment. The power module plays a vital role in electronic equipment and systems and is widely used in computers, communication equipment, industrial control, medical equipment and other fields.

[0003] According to Chinese patent application number: 202020582546.3, a programmable customized power supply is disclosed, including a control front panel and a power supply host, wherein the control front panel is installed at the front end of the power supply host, and the control front panel and the power supply host are fixedly connected by clips and nuts. An auxiliary heat dissipation device is added to the outside of the left and right ends of the power supply host of the programmable customized power supply, and the two new auxiliary heat dissipation devices can completely cover the heat dissipation strip holes inside the outer walls of the left and right ends of the power supply host after installation, so that the heat generated by the entire power supply host during operation can be dissipated through the heat dissipation strip holes. The heat will be accelerated through the two auxiliary heat dissipation devices when dissipating through the heat dissipation strip holes. The two new auxiliary heat dissipation devices can quickly extract the heat inside the power supply host through the heat dissipation strip holes when working. Auxiliary heat dissipation through the auxiliary heat dissipation devices can keep the internal temperature of the power supply host within a safe value range when it is working;

[0004] The existing technology effectively solves the problem that the programmable customized power supply is affected by its internal components at all levels during operation, which will cause the entire power supply to generate high heat during operation. Excessive heat accumulation inside the power supply host will easily cause the entire programmable customized power supply to work unstably or even be directly damaged. It has the advantage of improving the heat dissipation effect of the customized power supply. However, the detection circuit function of this type of customized power supply is relatively single during use, and it lacks protection for voltage and current, which easily poses a safety hazard.

[0005] In summary, the present invention provides a temperature-controlled customized power supply to solve the above problems. Utility Model Content

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A temperature-controlled custom power supply comprises a housing assembly, the housing assembly comprising a bottom shell and an end cover. A power module is mounted in the inner cavity of the bottom shell. The power module comprises a PCB, a main circuit, a detection circuit, a control circuit, an auxiliary circuit, and a heat sink. The PCB is threadedly connected to the inner wall of the bottom shell via bolts. The main circuit, detection circuit, control circuit, auxiliary circuit, and heat sink are all mounted on the surface of the PCB. The detection circuit comprises a temperature sensor, a sampling resistor, a voltage divider resistor, and a photocoupler. The detection circuit is used to detect various parameters during circuit operation. The control circuit comprises a PWM control chip. The output and input ends of the control circuit are interconnected with the input and output ends of the main circuit, the detection circuit, and the auxiliary circuit.

[0008] Furthermore, in the present invention, ventilation holes are provided on the front and back of the bottom shell, a fan is installed on the top of the end cover, and the bottom shell and the end cover are threadedly connected by bolts.

[0009] Furthermore, in the present invention, a switch button is installed on the surface of the bottom shell, and a display and an interface component are respectively installed at both ends of one side of the end cover. The interface component is used for extended connection, and the interface component includes an antenna interface, an output interface, an AC input interface, a DC input interface, a battery input interface and a battery charging interface.

[0010] Furthermore, in the present invention, the output end of the PWM control chip is connected to the input end of the fan and the display respectively, and the output end and input end of the interface component are interconnected with the output end and input end of the control circuit.

[0011] Furthermore, in the present invention, the main circuit includes an input circuit, an output circuit and a power conversion circuit. The input circuit uses a varistor and a ceramic gas discharge tube, the output circuit uses a rectifier diode and an output filter capacitor, and the power conversion circuit is a transformer and an inverter.

[0012] Furthermore, in the present invention, the auxiliary circuit includes an interface circuit and a signal conditioning circuit. The interface circuit adopts a transceiver chip, and the signal conditioning circuit adopts a filter and an amplifier.

[0013] Beneficial effects: The utility model has the following beneficial effects:

[0014] The utility model has the effect of detecting the operating parameters in the power supply circuit by providing a detection circuit and a control circuit. The temperature sensor, sampling resistor, voltage-dividing resistor and photoelectric coupler are respectively used to detect the temperature, current and voltage in the output and input circuits, and transmit the data to the PWM control chip, so as to realize the detection of the circuit to ensure that the power supply module operates within a normal range, effectively improving the safety of the power supply module. The utility model has the effect of dissipating the heat generated when the power supply module is used by providing ventilation holes, fans and heat sinks. The heat sink can conduct the heat of the components, and the ventilation holes and fans cooperate to discharge the heat, thereby achieving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the utility model in a separated state of the bottom shell and the end cover;

[0017] Figure 3 This is a schematic diagram of the system flow of the utility model;

[0018] Figure 4 This is a schematic diagram of the interface installation hole position of the utility model;

[0019] Figure 5 It is a schematic diagram of the circuit principle of the utility model.

[0020] In the picture:

[0021] 1. Housing assembly; 101. Bottom shell; 102. End cover; 103. Ventilation hole; 104. Fan; 2. Power supply module; 21. PCB board; 22. Main circuit; 23. Detection circuit; 231. Temperature sensor; 232. Sampling resistor; 233. Voltage divider resistor; 234. Optocoupler; 24. Control circuit; 241. PWM control chip; 25. Auxiliary circuit; 26. Heat sink; 3. Switch button; 4. Display; 5. Interface assembly. DETAILED DESCRIPTION

[0022] In order to better understand the technical content of the present invention, specific embodiments are given and described as follows in conjunction with the accompanying drawings. Various aspects of the present invention are described in this disclosure with reference to the accompanying drawings, in which many illustrative embodiments are shown. The embodiments of the present disclosure are not necessarily defined to include all aspects of the present invention. It should be understood that the various concepts and embodiments introduced above, as well as those described in more detail below, can be implemented in any of many ways, because the concepts and embodiments disclosed in the present invention are not limited to any implementation method. In addition, some aspects disclosed in the present invention can be used alone or in any appropriate combination with other aspects disclosed in the present invention.

[0023] Example 1

[0024] like Figure 1-5 As shown, the first embodiment of the present utility model provides a temperature-controlled customized power supply, including a shell assembly 1, the shell assembly 1 includes a bottom shell 101 and an end cover 102, the inner cavity of the bottom shell 101 is equipped with a power module 2, the power module 2 includes a PCB board 21, a main circuit 22, a detection circuit 23, a control circuit 24, an auxiliary circuit 25 and a heat sink 26, the PCB board 21 is threadedly connected to the inner wall of the bottom shell 101 by bolts, the main circuit 22, the detection circuit 23, the control circuit 24, the auxiliary circuit 25 and the heat sink 26 are all installed on the surface of the PCB board 21, the detection circuit 23 includes a temperature sensor 231, a sampling resistor 232, a voltage divider resistor 233 and a photocoupler 234, the detection circuit 23 is used to detect various parameters during operation of the circuit, the control circuit 24 includes a PWM control chip 241, and the output and input ends of the control circuit 24 are interconnected with the input and output ends of the main circuit 22, the detection circuit 23 and the auxiliary circuit 25.

[0025] like Figure 1-5As shown, the temperature sensor 231, the sampling resistor 232, the voltage divider resistor 233 and the photoelectric coupler 234 monitor the temperature, current and voltage of the power input and output circuits in real time, and feed back the monitoring information to the PWM control chip 241. While adjusting and stabilizing the output voltage and current through the control circuit 24, it can also perform protection actions under abnormal conditions. When the input DC voltage is lower than the normal input voltage, Vo3 has no output and the total output power of Vo1 and Vo2 is 150W. The output voltage range of Vo3 is not examined under high and low temperature conditions. When the input voltage is in the undervoltage protection range, the total output power of Vo1 and Vo2 is 150W. The maximum power is 80W. When the input voltage exceeds 37V for more than 100mS, the three outputs are automatically shut down. When the input voltage returns to the normal range, the output automatically recovers. When the DC input is tested, the input is a 3-meter test line, the Vin voltage is ≤10V, and the 20V output is switched to 28V output. The load is ≥3.5A. When the external DC input is powered, if the DC input voltage is detected to be lower than 16V, the output of the charging power supply will be automatically shut down, reducing the overall power of the power module when the input is 9V. The power supply is divided into DC input, AC input, battery input, isolated DC / DC circuit and non-isolated DC / DC circuit.

[0026] Example 2

[0027] Reference Figure 1-5 , which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.

[0028] In this embodiment, ventilation holes 103 are provided on the front and back of the bottom shell 101 , a fan 104 is installed on the top of the end cover 102 , and the bottom shell 101 and the end cover 102 are threadedly connected by bolts.

[0029] A switch button 3 is installed on the surface of the bottom shell 101, and a display 4 and an interface component 5 are installed at both ends of one side of the end cover 102 respectively. The interface component 5 is used for extended connection. The interface component 5 includes an antenna interface, an output interface, an AC input interface, a DC input interface, a battery input interface and a battery charging interface.

[0030] The output end of the PWM control chip 241 is connected to the input end of the fan 104 and the display 4 respectively, and the output end and input end of the interface component 5 are interconnected with the output end and input end of the control circuit 24 .

[0031] The main circuit 22 includes an input circuit, an output circuit and a power conversion circuit. The input circuit uses a varistor and a ceramic gas discharge tube, the output circuit uses a rectifier diode and an output filter capacitor, and the power conversion circuit is a transformer and an inverter.

[0032] The auxiliary circuit 25 includes an interface circuit and a signal conditioning circuit. The interface circuit adopts a transceiver chip, and the signal conditioning circuit adopts a filter and an amplifier.

[0033] like Figure 1-5 As shown, the interface component 5 is provided with three groups of input interfaces and three groups of output interfaces. The three groups of input interfaces are AC, DC and battery three-way input interfaces. The three groups of output interfaces are 5V / 6A, 29.4V / 4.0A and 20 / 28V respectively, and the three groups of output interfaces are switchable. Through the cooperation of the detection circuit 23 and the control circuit 24, input undervoltage protection, output overcurrent protection, output short circuit protection, output overvoltage protection and output voltage remote control protection can be realized. The ventilation holes 103, the fan 104 and the heat sink 26 can cooperate to dissipate the heat generated when the power module is in use. The heat sink 26 can conduct the heat of the components. The ventilation holes 103 and the fan 104 can discharge the heat in cooperation, thereby achieving the heat dissipation effect.

[0034] When in use, the temperature sensor 231, the sampling resistor 232, the voltage divider resistor 233 and the photoelectric coupler 234 monitor the temperature, current and voltage of the power input and output circuits in real time, and feed back the monitoring information to the PWM control chip 241. While adjusting and stabilizing the output voltage and current through the control circuit 24, it can also perform protection actions under abnormal conditions. When the input DC voltage is lower than the normal input voltage, Vo3 has no output and the total output power of Vo1 and Vo2 is 150W. The output voltage range of Vo3 is not examined under high and low temperature conditions. When the input voltage is in the undervoltage protection range, When the input voltage exceeds 37V for more than 100mS, the three outputs are automatically shut down. When the input voltage returns to the normal range, the output automatically recovers. When the DC input is tested with a 3-meter test line, the Vin voltage is ≤10V, and the 20V output is switched to 28V output with a load ≥3.5A. When the external DC input is used for power supply, if the DC input voltage is detected to be lower than 16V, the charging power output will be automatically shut down, reducing the overall power of the power module at 9V input, thereby improving the safety of the power module.

[0035] The standard parts used in this application document can all be purchased from the market, and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field, which is common knowledge in this field. In addition, this application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0036] While the present invention has been described above with reference to preferred embodiments, this is not intended to limit the present invention. Persons skilled in the art will readily appreciate that various modifications and variations may be made without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A temperature-controlled custom power supply, comprising a housing assembly (1), characterized in that: The housing assembly (1) comprises a bottom shell (101) and an end cover (102); a power module (2) is installed in the inner cavity of the bottom shell (101); the power module (2) comprises a PCB board (21), a main circuit (22), a detection circuit (23), a control circuit (24), an auxiliary circuit (25) and a heat sink (26); the PCB board (21) is threadedly connected to the inner wall of the bottom shell (101) via bolts; the main circuit (22), the detection circuit (23), the control circuit (24), the auxiliary circuit (25) and the heat sink (26) are connected to the inner wall of the bottom shell (101) via bolts; The chips (26) are all mounted on the surface of the PCB board (21); the detection circuit (23) includes a temperature sensor (231), a sampling resistor (232), a voltage divider resistor (233) and a photoelectric coupler (234); the detection circuit (23) is used to detect various parameters during operation of the circuit; the control circuit (24) includes a PWM control chip (241); the output end and the input end of the control circuit (24) are interconnected with the input end and the output end of the main circuit (22), the detection circuit (23) and the auxiliary circuit (25).

2. The temperature-controlled custom power supply according to claim 1, wherein: The front and back sides of the bottom shell (101) are both provided with ventilation holes (103), a fan (104) is installed on the top of the end cover (102), and the bottom shell (101) and the end cover (102) are threadedly connected by bolts.

3. The temperature-controlled custom power supply according to claim 1, wherein: A switch button (3) is mounted on the surface of the bottom shell (101), and a display (4) and an interface component (5) are mounted on both ends of one side of the end cover (102), respectively. The interface component (5) is used for extended connection, and the interface component (5) includes an antenna interface, an output interface, an AC input interface, a DC input interface, a battery input interface, and a battery charging interface.

4. The temperature-controlled custom power supply according to claim 3, wherein: The output end of the PWM control chip (241) is respectively connected to the input end of the fan (104) and the display (4), and the output end and input end of the interface component (5) are both interconnected with the output end and input end of the control circuit (24).

5. The temperature-controlled custom power supply according to claim 1, wherein: The main circuit (22) comprises an input circuit, an output circuit and a power conversion circuit. The input circuit uses a varistor and a ceramic gas discharge tube, the output circuit uses a rectifier diode and an output filter capacitor, and the power conversion circuit is a transformer and an inverter.

6. The temperature-controlled custom power supply according to claim 1, wherein: The auxiliary circuit (25) comprises an interface circuit and a signal conditioning circuit, wherein the interface circuit adopts a transceiver chip, and the signal conditioning circuit adopts a filter and an amplifier.

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