High-power electronic load device for power supply test

Abstract

The utility model relates to the technical field of power supply testing devices, and discloses a high-power electronic load device for power supply testing, which comprises an electronic load device main body, the side surface of the electronic load device main body is provided with a heat dissipation protection mechanism, and the heat dissipation protection mechanism comprises a storage bin and a cylindrical fan. The storage bin is filled with a heat preservation layer, a copper plate is fixedly installed on the left side of the storage bin, and the copper plate is fixedly installed on the right side of the electronic load device body. According to the electronic load device, low-temperature media can be stored through the design of the storage bin, heat dissipation air can be conveyed into the inner cavity of the electronic load device body by penetrating through the copper pipe through the design of the cylindrical fan, and the low-temperature media can cool the heat dissipation air through the cooperation of the copper pipe and the heat exchange fins; in this way, the function of efficient heat dissipation of the components in the electronic load device body is achieved, and the problem that heat cannot be dissipated in time in the high-power test process of the electronic load device body is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply testing devices, and in particular to a high-power electronic load device for power supply testing. Background Art

[0002] An electronic load is a device that consumes electrical energy by controlling the internal power or conduction amount of a transistor and relying on the power dissipation of a power tube. It can accurately detect the load voltage and precisely adjust the load current. It can also simulate a load short circuit. The simulated load is inductive, resistive, and capacitive, and the current rise time of a capacitive load. Generally, it is indispensable for debugging and testing a switching power supply. A load device is used during the power supply test.

[0003] A Chinese patent discloses a feedback type DC electronic load device, the publication number is CN215066871U, and the technical solution disclosed in the patent document is as follows: it includes a load device housing, the front and rear sides of the load device housing are both provided with a first through hole, the inner wall of the first through hole is fixedly connected with a threaded cylinder, the inner wall of the threaded cylinder is threadedly connected with a support cylinder, the inner wall of the support cylinder is fixedly connected with a dust net, the surface of the support cylinder is fixedly connected with a baffle, and the front and rear sides of the load device housing are both in contact with the surface of the baffle.

[0004] In order to solve the problem that the dust adsorbed on the dustproof net will be scattered due to vibration, the existing technology adopts the method of designing baffles, sliders, sliding holes, U-shaped columns and other components to deal with it. However, there is still a situation where the electronic load component cannot be efficiently cooled. The structure only dissipates heat for the electronic load component by setting heat dissipation holes. If the electronic load component is tested at high power, more heat will be generated. This heat cannot be dissipated quickly, which can easily cause damage to the electronic load component. Utility Model Content

[0005] The utility model aims to provide a high-power electronic load device for power supply testing, so as to solve the problem in the prior art that heat cannot be quickly dissipated when the electronic load component is subjected to high-power testing.

[0006] The utility model provides the following technical scheme: a high-power electronic load device for power supply testing, comprising an electronic load device body, a heat dissipation protection mechanism is arranged on the side of the electronic load device body, the heat dissipation protection mechanism comprises a storage bin and a cylindrical fan, the interior of the storage bin is filled with a heat preservation layer, a copper plate is fixedly installed on the left side of the storage bin, the copper plate is fixedly installed on the right side of the electronic load device body, a copper tube is fixedly installed on the inner wall of the copper plate, a heat exchange wing is fixedly connected to the inner wall of the copper tube, the right side of the copper tube extends to the right side of the storage bin, the top and bottom of the storage bin are movably plugged with a closing cover, the right side of the storage bin is fixedly installed with an iron attachment cover, the cylindrical fan is arranged on the right side of the iron attachment cover, through the design of the storage bin, low-temperature medium can be stored, and then through the cooperation of the copper tube and the heat exchange wing, the heat dissipation air can be cooled, thereby improving the high efficiency of cooling.

[0007] As a preferred embodiment of the above technical solution, a plug-in ring is movably connected to the right side of the iron attachment cover, a magnetic block is fixedly installed on the inner wall of the plug-in ring, and the left side of the magnetic block is movably connected to the right side of the iron attachment cover. The design of the magnetic block facilitates the user to position the plug-in ring.

[0008] As a preferred embodiment of the above technical solution, the cylindrical fan is fixedly connected to the middle part of the receiving cylinder, the left side of the receiving cylinder is fixedly connected to the right side of the plug-in ring, and the right side of the receiving cylinder is detachably connected with a dust filter cover, which can filter the heat dissipation air to ensure the safety of the component.

[0009] As a preferred embodiment of the above technical solution, the heat dissipation protection mechanism also includes a side closing plate, which is fixedly installed on the left side of the electronic load device body. A square groove is provided on the left side of the side closing plate. The design of the square groove facilitates the discharge of air after heat dissipation inside the electronic load device body.

[0010] As a preferred embodiment of the above technical solution, a hollow rubber tube is fixedly connected to the inner wall of the square groove, and a flashing light is fixedly installed on the left side of the side closing plate. Through the design of the hollow rubber tube, the inner cavity of the square groove can be closed when idle to achieve a dust-proof function.

[0011] As a preferred embodiment of the above technical solution, a support rod is fixedly installed on the left side of the side closing plate, and a circular mesh seat is fixedly installed on the end of the support rod away from the side closing plate. Through the design of the circular mesh seat, the air after heat dissipation can fully contact the outer surface of the temperature sensor, thereby improving the timeliness of temperature measurement.

[0012] As an optimization of the above technical solution, a temperature sensor is fixedly installed on the right side of the circular mesh base. The temperature sensor and the strobe light are electrically connected through an external controller. The temperature sensor can monitor the temperature of the air after heat dissipation inside the main body of the electronic load device. If the temperature is too high, it indicates that the heat dissipation effect is not ideal, and then the strobe light can be controlled to give a prompt to the user.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Through the design of the storage bin, the present utility model can store low-temperature media. Through the design of the cylindrical fan, heat dissipation air can be conveyed into the inner cavity of the main body of the electronic load device through the copper pipe. The low-temperature media will cool the heat dissipation air through the cooperation of the copper pipe and the heat exchange fins, that is, the function of efficiently dissipating heat from the components inside the main body of the electronic load device is realized, avoiding the problem that heat cannot be dissipated in time during the high-power test of the main body of the electronic load device, and improving the safety of this structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the present utility model;

[0016] Figure 2 is an exploded structural schematic diagram of the overall storage bin of the present utility model;

[0017] Figure 3 is a right-side structural schematic diagram of the iron attachment cover of the present utility model;

[0018] Figure 4 is Figure 1 an enlarged view of the structure at position A in

[0019] Figure 5 is a stage structural schematic diagram of the hollow rubber cylinder of the present utility model.

[0020] In the figure: 1. Main body of the electronic load device; 2. Heat dissipation protection mechanism; 21. Storage bin; 22. Thermal insulation layer; 23. Copper plate; 24. Copper pipe; 25. Heat exchange fins; 26. Sealing cover; 27. Iron attachment cover; 271. Insertion ring; 272. Magnetic attraction block; 273. Cylindrical fan; 274. Dust filter net cover; 28. Side sealing plate; 281. Square groove; 282. Hollow rubber cylinder; 283. Support rod; 284. Circular mesh base; 285. Temperature sensor; 286. Strobe light. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] 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.

[0022] As shown in Figure 1 - Figure 2As shown, the utility model provides a technical solution: a high-power electronic load device for power supply testing, comprising an electronic load device body 1, a heat dissipation protection mechanism 2 is arranged on the side of the electronic load device body 1, the heat dissipation protection mechanism 2 comprises a storage bin 21 and a cylindrical fan 273, the interior of the storage bin 21 is filled with a heat preservation layer 22, a copper plate 23 is fixedly installed on the left side of the storage bin 21, the copper plate 23 is fixedly installed on the right side of the electronic load device body 1, a copper tube 24 is fixedly installed on the inner wall of the copper plate 23, a heat exchange wing 25 is fixedly connected to the inner wall of the copper tube 24, the right side of the copper tube 24 extends to the right side of the storage bin 21, the top and bottom of the storage bin 21 are movably plugged with a closing cover 26, and the storage bin 21 is provided with a heat exchange wing 25. An iron attachment cover 27 is fixedly installed on the right side of 21, and a cylindrical fan 273 is arranged on the right side of the iron attachment cover 27. Before conducting a high-power test, by removing the upper closing cover 26, a low-temperature medium can be added to the inner cavity of the storage bin 21. The low-temperature medium can be set to water with a relatively low temperature, and then the cylindrical fan 273 is controlled to work through the copper tube 24 to transport heat dissipation gas to the inner cavity of the electronic load device body 1. The low-temperature medium will cool the heat dissipation gas, that is, the function of efficient heat dissipation treatment of the components inside the electronic load device body 1 is realized. The material of the thermal insulation layer 22 can be set to diatomaceous earth, etc., to improve the thermal insulation capacity of the storage bin 21 and reduce the influence of room temperature on the low-temperature medium inside the storage bin 21.

[0023] As an implementation method in this embodiment, Figure 3 As shown, a plug-in ring 271 is movably plugged into the right side of the iron attachment cover 27, a magnetic block 272 is fixedly installed on the inner wall of the plug-in ring 271, the left side of the magnetic block 272 is movably connected to the right side of the iron attachment cover 27, a cylindrical fan 273 is fixedly connected to the middle part of the receiving cylinder, the left side of the receiving cylinder is fixedly connected to the right side of the plug-in ring 271, and a dust filter screen 274 is detachably connected to the right side of the receiving cylinder. Through the design of the dust filter screen 274, the heat dissipation air absorbed by the cylindrical fan 273 can be filtered to ensure the safety of the internal components of the electronic load device body 1. After the plug-in ring 271 is plugged into the side of the iron attachment cover 27, the plug-in ring 271 is magnetically positioned by the magnetic block 272. With this design, it is convenient for users to disassemble and maintain the cylindrical fan 273 as a whole.

[0024] As an implementation method in this embodiment, Figure 4 - Figure 5As shown in the figure, the heat dissipation protection mechanism 2 further includes a side closing plate 28. The side closing plate 28 is fixedly installed on the left side of the electronic load device main body 1. A square groove 281 is formed on the left side of the side closing plate 28. A hollow rubber cylinder 282 is fixedly connected to the inner wall of the square groove 281. A flashing lamp 286 is fixedly installed on the left side of the side closing plate 28. A support rod 283 is fixedly installed on the left side of the side closing plate 28. A circular mesh base 284 is fixedly installed at one end of the support rod 283 away from the side closing plate 28. A temperature sensor 285 is fixedly installed on the right side of the circular mesh base 284. The temperature sensor 285 and the flashing lamp 286 are electrically connected through an external controller. When the cylindrical fan 273 operates, due to the thrust of the air, the hollow rubber cylinder 282 can be elastically deformed, and the heat-dissipated air inside the electronic load device main body 1 is discharged through the gap of the hollow rubber cylinder 282. After the cylindrical fan 273 stops working, the hollow rubber cylinder 282 will return to its original state and seal the inner cavity of the square groove 281 to achieve the function of dust prevention. The temperature sensor 285 is an existing structure and its model can be selected as LM35. Through the design of the temperature sensor 285, the temperature of the heat-dissipated gas discharged from the electronic load device main body 1 can be monitored. When the temperature is higher than the set value, the flashing lamp 286 is controlled to work through the external controller to give a light prompt to the user, urging the user to perform positive operations such as shutting down in time and replacing the low-temperature medium in time, thereby increasing safety.

[0025] Working principle: During the operation of the electronic load device main body 1, controlling the cylindrical fan 273 to work can dissipate heat from the components inside the electronic load device main body 1. If high-power testing is required, by removing the upper closing cover 26, the low-temperature medium can be added to the inner cavity of the storage bin 21, and the heat-dissipated air is cooled by the low-temperature medium, so as to ensure the safety of the components inside the electronic load device main body 1.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A high-power electronic load device for power supply testing, comprising a main body (1) of the electronic load device, characterized in that: A heat dissipation and protection mechanism (2) is provided on the side of the main body (1) of the electronic load device. The heat dissipation and protection mechanism (2) includes a storage bin (21) and a cylindrical fan (273). The interior of the storage bin (21) is filled with a heat insulation layer (22). A copper plate (23) is fixedly installed on the left side of the storage bin (21), and the copper plate (23) is fixedly installed on the right side of the main body (1) of the electronic load device. A copper tube (24) is fixedly installed on the inner wall of the copper plate (23), and heat exchange fins (25) are fixedly connected to the inner wall of the copper tube (24). The right side of the copper tube (24) extends to the right side of the storage bin (21). Sealing covers (26) are movably inserted into the top and bottom of the storage bin (21). An iron attachment cover (27) is fixedly installed on the right side of the storage bin (21), and the cylindrical fan (273) is arranged on the right side of the iron attachment cover (27).

2. The high-power electronic load device for power supply testing according to claim 1, characterized in that: A plug-in ring (271) is movably inserted into the right side of the iron attachment cover (27). A magnetic attraction block (272) is fixedly installed on the inner wall of the plug-in ring (271), and the left side of the magnetic attraction block (272) is movably connected to the right side of the iron attachment cover (27).

3. The high-power electronic load device for power supply testing according to claim 2, wherein: The cylindrical fan (273) is fixedly connected to the middle of a receiving cylinder. The left side of the receiving cylinder is fixedly connected to the right side of the plug-in ring (271), and the right side of the receiving cylinder is detachably connected to a dust filter net cover (274).

4. The high-power electronic load device for power supply testing according to claim 1, characterized in that: The heat dissipation and protection mechanism (2) further includes a side closing plate (28). The side closing plate (28) is fixedly installed on the left side of the main body (1) of the electronic load device, and a square groove (281) is formed on the left side of the side closing plate (28).

5. The high-power electronic load device for power supply testing according to claim 4, wherein: A hollow rubber cylinder (282) is fixedly connected to the inner wall of the square groove (281), and a flashing lamp (286) is fixedly installed on the left side of the side closing plate (28).

6. The high-power electronic load device for power supply testing according to claim 5, wherein: A support rod (283) is fixedly installed on the left side of the side closing plate (28). The end of the support rod (283) away from the side closing plate (28) is fixedly installed with a circular mesh seat (284).

7. The high-power electronic load device for power supply testing according to claim 6, wherein: A temperature sensor (285) is fixedly installed on the right side of the circular mesh seat (284). The temperature sensor (285) and the flashing lamp (286) are electrically connected through an external controller by electrical signals.

Images