High-power module test equipment

Abstract

The utility model discloses a large power module test device comprising a heat radiation platform and a pressure plate, the upper end face of the heat radiation platform is provided with a positioning groove, the lower end face of the positioning groove is provided with a heat radiation sheet, the pressure plate is movably installed on the upper end of the heat radiation platform, the heat radiation platform is provided with a fixing mechanism, and the upper end of the pressure plate is provided with a fireproof cover. The fixing mechanism comprises a first guide rod, a first magnetic sleeve and a second magnetic sleeve, the first guide rod is fixedly installed on the upper end face of the heat dissipation platform, the first magnetic sleeve is detachably installed on the first guide rod, the second magnetic sleeve is fixedly installed on the pressing plate, and the pressing plate and the heat dissipation platform are in matched sliding connection with the first guide rod through the second magnetic sleeve. A handle is arranged on the front end face of the pressing plate. According to the utility model, the fixing mechanism is arranged on the heat dissipation platform, so that the pressing plate and the heat dissipation platform are adsorbed and fixed through the cooperation of the first magnetic sleeve and the second magnetic sleeve, and the efficiency of mounting and dismounting the power module is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power module detection, in particular to high-power module testing equipment. Background Art

[0002] In the aerospace industry, 300-1008W high-power AC / DC power converters are often needed. Before use, they need to be tested to ensure that their performance is normal. During the test, the power module will heat up rapidly, so the high-power module needs to be fixed on the heat dissipation platform.

[0003] In the prior art, high-power modules are mostly fixed to the heat dissipation platform with bolts, which makes the installation and disassembly process of the high-power modules cumbersome, seriously affecting the detection rate. In addition, when the high-power modules are being detected, it is inevitable that overload will occur, causing the power supply to explode. Although the explosion power is not great, there is a subsequent fire hazard. Therefore, a high-power module testing device is needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a high-power module testing device, which has the advantages of easy installation and prevention of power supply explosion, and solves the problem in the prior art that it is inconvenient to fix the power module in the high-power module testing device and there is a risk of explosion after the power module is overloaded and explodes.

[0005] To achieve the above object, the utility model provides the following technical solutions: a high-power module testing device, comprising a heat dissipation platform and a pressing plate, the upper end surface of the heat dissipation platform is provided with a positioning groove, the lower end surface of the positioning groove is provided with a heat sink, the pressing plate is movably mounted on the upper end of the heat dissipation platform, a fixing mechanism is provided on the heat conduction platform, and a fireproof cover is provided on the upper end of the pressing plate;

[0006] The fixing mechanism includes a first guide rod, a first magnetic sleeve and a second magnetic sleeve. The first guide rod is fixedly installed on the upper end surface of the heat dissipation platform. The first magnetic sleeve is detachably installed on the first guide rod. The second magnetic sleeve is fixedly installed on the pressure plate. The pressure plate and the heat dissipation platform are slidably connected with each other through the second magnetic sleeve and the first guide rod. A handle is provided on the front end surface of the pressure plate.

[0007] As a preferred embodiment of the high-power module testing device of the utility model, neodymium magnets are arranged inside the first magnetic sleeve and the second magnetic sleeve, and the magnetic pole anisotropy of the neodymium magnets of the first magnetic sleeve and the second magnetic sleeve is opposite.

[0008] As a preferred embodiment of the high-power module testing device of the utility model, a locking bolt connected by a thread is arranged on the side of the first magnetic sleeve, and the second magnetic sleeve is interference-mounted on the pressure plate.

[0009] As a preferred high-power module testing device of the utility model, a fixing plate is provided on the lower end face of the pressing plate, a second guide rod is provided on the upper end face of the pressing plate, a spring is sleeved on the second guide rod, and the fixing plate and the pressing plate are elastically connected through the cooperation of the second guide rod and the spring.

[0010] As a preferred embodiment of the high-power module testing device of the utility model, a damping sliding hole is provided on the fireproof cover, the fireproof cover is sleeved on the first guide rod and is connected to the first guide rod in a damping sliding manner, and the inner end surface side length of the fireproof cover is equal to the upper end surface side length of the heat dissipation platform.

[0011] As a preferred embodiment of the high-power module testing equipment of the present invention, the fireproof cover is made of silica gel.

[0012] As a preferred embodiment of the high-power module testing device of the utility model, a sealing curtain is arranged near the handle of the fireproof cover, and the sealing curtain is a plurality of rectangular silicone sheets.

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

[0014] 1. The utility model sets a fixing mechanism on the heat dissipation platform, so that the pressure plate and the heat dissipation platform are fixed by the first magnetic sleeve and the second magnetic sleeve through adsorption, which greatly improves the efficiency of installation and removal of the power module. The height-adjustable first magnetic sleeve structure allows the pressing height of the pressure plate to be freely adjusted to adapt to power modules of different thicknesses.

[0015] 2. The utility model provides a sliding fireproof cover at the upper end of the pressure plate. After the power module explodes due to overload, the fireproof cover can be quickly put on the power module to isolate it from the external environment. After the oxygen in the fireproof cover is consumed, the fire can be controlled to avoid the spread of fire, thereby improving the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is an exploded view of the utility model;

[0018] Figure 3 This is a schematic diagram of the first magnetic sleeve structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the fireproof cover structure of the utility model.

[0020] In the figure: 1. pressure plate; 110. pressing plate; 111. second guide rod; 112. spring; 102. handle; 2. heat dissipation platform; 201. positioning groove; 202. heat sink; 3. fixing mechanism; 310. first guide rod; 320. first magnetic sleeve; 321. locking bolt; 322. neodymium magnet; 330. second magnetic sleeve; 4. fireproof cover; 401. sealing curtain; 402. damping slide hole. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 4 , a high-power module testing device, comprising a heat dissipation platform 2 and a pressing plate 1, the upper end surface of the heat dissipation platform 2 is provided with a positioning groove 201, the lower end surface of the positioning groove 201 is provided with a heat sink 202, the pressing plate 1 is movably mounted on the upper end of the heat dissipation platform 2, the heat dissipation platform 2 is provided with a fixing mechanism 3, and the upper end of the pressing plate 1 is provided with a fireproof cover 4;

[0022] The fixing mechanism 3 includes a first guide rod 310, a first magnetic sleeve 320 and a second magnetic sleeve 330. The first guide rod 310 is fixedly installed on the upper end surface of the heat dissipation platform 2. The first magnetic sleeve 320 is detachably installed on the first guide rod 310. The second magnetic sleeve 330 is fixedly installed on the pressure plate 1. The pressure plate 1 and the heat dissipation platform 2 are slidably connected with the first guide rod 310 through the second magnetic sleeve 330. A handle 102 is provided on the front end surface of the pressure plate 1.

[0023] When the device is in use, a high-power power module is placed on the positioning groove 201, and then the handle 102 is held to press the pressing plate 1 downward, and the first magnetic sleeve 320 and the second magnetic sleeve 330 are adsorbed so that the pressing plate 110 presses the high-power power module onto the heat dissipation platform 2. The position of the first magnetic sleeve 320 can be adjusted to adjust the deformation of the spring 112, thereby adjusting the downward pressure of the pressing plate 110. After pressing, the power module is powered on for testing. During the test, if the power supply explodes due to overload, the power supply is disconnected, and the fireproof sleeve is quickly pressed down to cover the power module and isolate it from the outside air, thereby suppressing the further spread of the fire.

[0024] Furthermore, neodymium magnets 322 are disposed inside the first magnetic sleeve 320 and the second magnetic sleeve 330 , and the magnetic poles of the neodymium magnets 322 of the first magnetic sleeve 320 and the second magnetic sleeve 330 are opposite to each other.

[0025] The pressing plate 1 and the heat dissipation platform 2 are fixed by the first magnetic sleeve 320 and the second magnetic sleeve 330 by adsorption. By pushing upward vigorously, the pressing plate 1 and the heat dissipation platform 2 can be quickly separated, which greatly improves the efficiency of installing and removing the power module.

[0026] Furthermore, a threaded locking bolt 321 is disposed on the side of the first magnetic sleeve 320 , and the second magnetic sleeve 330 is interference-mounted on the pressing plate 1 .

[0027] By tightening the locking bolt 321, the locking bolt 321 squeezes the first guide rod 310, thereby fixing the first magnetic sleeve 320, so that the position of the first magnetic sleeve 320 can be adjusted up and down to adapt to power modules of different thicknesses, and the elastic force of the spring 112 can be balanced by adjusting the position of the first magnetic sleeve 320, so that less force can be used to separate the pressure plate 1 and the heat dissipation platform 2.

[0028] Furthermore, a fixing plate 110 is provided on the lower end surface of the pressing plate 1, and a second guide rod 111 is provided on the upper end surface of the pressing plate 1. A spring 112 is sleeved on the second guide rod 111. The fixing plate 110 and the pressing plate 1 are elastically connected through the cooperation of the second guide rod 111 and the spring 112.

[0029] The pressing plate 110 is used to press the power module and the positioning groove 201 tightly under the action of the spring 112, thereby improving the heat conduction efficiency and the heat dissipation effect of the power supply.

[0030] Furthermore, a damping sliding hole 402 is provided on the fireproof cover 4, and the fireproof cover 4 is sleeved on the first guide rod 310 and is connected to the first guide rod 310 in a damping sliding manner. The inner end surface side length of the fireproof cover 4 is equal to the upper end surface side length of the heat dissipation platform 2.

[0031] The fireproof cover 4 is buckled on the heat dissipation platform 2 to form a sealed cavity therewith, thereby isolating the power module from the external air, effectively suppressing the expansion of the fire source and buying time for taking the fire extinguisher.

[0032] Furthermore, the fireproof cover 4 is made of silica gel.

[0033] Silicone has stable chemical properties and does not support combustion. Some types of silicone can maintain structural integrity in high temperature environments and can be used as fireproof and insulating parts.

[0034] Furthermore, a sealing curtain 401 is provided near the handle 102 of the fireproof cover 4, and the sealing curtain 401 is a plurality of rectangular silicone sheets.

[0035] The sealing curtain 401 is used to enhance the sealing performance at the handle 102, reduce air leakage therein, and improve the fire retardant effect.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-power module testing device, comprising a heat dissipation platform (2) and a pressing plate (1), wherein the upper end surface of the heat dissipation platform (2) is provided with a positioning groove (201), the lower end surface of the positioning groove (201) is provided with a heat sink (202), and the pressing plate (1) is movably mounted on the upper end of the heat dissipation platform (2), characterized in that: The heat dissipation platform (2) is provided with a fixing mechanism (3), and the upper end of the pressing plate (1) is provided with a fireproof cover (4); The fixing mechanism (3) comprises a first guide rod (310), a first magnetic sleeve (320) and a second magnetic sleeve (330); the first guide rod (310) is fixedly mounted on the upper end surface of the heat dissipation platform (2); the first magnetic sleeve (320) is detachably mounted on the first guide rod (310); the second magnetic sleeve (330) is fixedly mounted on the pressure plate (1); the pressure plate (1) and the heat dissipation platform (2) are slidably connected with each other through the second magnetic sleeve (330) and the first guide rod (310); and a handle (102) is provided on the front end surface of the pressure plate (1).

2. The high-power module testing equipment according to claim 1, characterized in that: Neodymium magnets (322) are arranged inside the first magnetic sleeve (320) and the second magnetic sleeve (330), and the magnetic poles of the neodymium magnets (322) of the first magnetic sleeve (320) and the second magnetic sleeve (330) are opposite to each other.

3. The high-power module testing equipment according to claim 1, characterized in that: A threaded locking bolt (321) is provided on the side of the first magnetic sleeve (320), and the second magnetic sleeve (330) is interference-mounted on the pressing plate (1).

4. The high-power module testing equipment according to claim 3, characterized in that: The lower end surface of the pressing plate (1) is provided with a fixing plate (110), the upper end surface of the pressing plate (1) is provided with a second guide rod (111), the second guide rod (111) is sleeved with a spring (112), and the fixing plate (110) and the pressing plate (1) are elastically connected through the cooperation of the second guide rod (111) and the spring (112).

5. The high-power module testing equipment according to claim 1, characterized in that: The fireproof cover (4) is provided with a damping sliding hole (402), the fireproof cover (4) is sleeved on the first guide rod (310) and is connected to the first guide rod (310) in a damping sliding manner, and the side length of the inner end surface of the fireproof cover (4) is equal to the side length of the upper end surface of the heat dissipation platform (2).

6. The high-power module testing equipment according to claim 5, characterized in that: The fireproof cover (4) is made of silica gel material.

7. The high-power module testing equipment according to claim 6, characterized in that: A sealing curtain (401) is provided near the handle (102) of the fireproof cover (4), and the sealing curtain (401) is a plurality of rectangular silicone sheets.

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