Electric shock prevention power electronic heat sink

Abstract

The application discloses an electric shock prevention power electronic heat sink, and relates to the technical field of electronic heat dissipation, which comprises a connecting frame, the bottom surface of the connecting frame is fixedly connected with an electric shock prevention shell one, the inside of the electric shock prevention shell one is provided with an electric shock prevention shell two, a ceramic insulation layer is arranged between the electric shock prevention shell one and the electric shock prevention shell two, the upper surface of the connecting frame is placed with a sealing cover plate, the connecting frame and the sealing cover plate are connected through two connecting mechanisms, the upper surface of the sealing cover plate is fixedly embedded with a heat conduction plate, the upper surface of the heat conduction plate is installed with a group of heat dissipation fins, and the outer surface of the sealing cover plate is installed with a self-cleaning mechanism. The electric shock prevention shell one, the electric shock prevention shell two and the ceramic insulation layer are arranged, the electric shock prevention shell one can prevent electric shock of the power electronic device, the self-cleaning mechanism can automatically clean the dust on the heat dissipation fins, and the heat dissipation effect of the heat sink on the power electronic device can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic heat sinks, in particular to an electric power electronic heat sink with anti-electric shock function. BACKGROUND

[0002] Power electronic devices, also known as power semiconductor devices, are mainly used for power conversion and control circuit of high-power electronic devices. According to the degree of control of power electronic devices by control circuit signals, power electronic devices can be divided into semi-controlled devices, fully-controlled devices and non-controlled devices. Power electronic devices are developing in the direction of high power, high frequency and integration. However, power electronic devices generate a lot of heat. In order to dissipate the heat in time, a heat sink is generally installed to assist in heat dissipation, so as to maintain the continuous work of the power electronic device. The power electronic heat sink is an indispensable part of the power electronic device, and its performance directly affects the stability and service life of the device.

[0003] The power electronic heat sink is usually in direct or indirect contact with high-voltage circuits or high-power circuits. If the design or installation of the heat sink is improper, there are exposed metal parts or poor grounding, which may cause electric shock to users or maintenance personnel, causing serious personal injury or even life-threatening. Therefore, it is the primary task of the heat sink to ensure that it has an anti-electric shock function and takes necessary insulation and grounding measures. Electric shock not only may cause harm to personnel, but also may cause damage to the power electronic device itself. If the insulation between the heat sink and the circuit fails, the current may flow into other circuit parts through the heat sink, causing short circuit, component damage or equipment failure.

[0004] However, the power electronic heat sink in the prior art still has some defects in use. The power electronic heat sink in the prior art is mostly used to conduct heat from the power electronic device through the heat dissipation fins. However, the heat dissipation fins will be contaminated with dust on their surfaces after a period of use. The existing power electronic heat sink is not convenient for automatically cleaning the dust on the heat dissipation fins, which will affect the heat dissipation effect of the heat sink. In addition, the anti-electric shock function of the existing power electronic heat sink is not strong, which may cause electric shock and affect personal safety. Therefore, the present application provides a power electronic heat sink with anti-electric shock function to solve the above problems. SUMMARY

[0005] The present application aims to overcome the shortcomings of the prior art and provide a power electronic heat sink with anti-electric shock function.

[0006] In order to achieve the above object, the present application provides the following technical scheme: An electric shock prevention power electronic heat sink, comprising a connecting frame, the bottom surface of the connecting frame is fixedly connected with an anti- electric shock protection shell one, the inside of the anti- electric shock protection shell one is provided with an anti- electric shock protection shell two, a ceramic insulation layer is arranged between the anti- electric shock protection shell one and the anti- electric shock protection shell two, the upper surface of the connecting frame is placed with a sealing cover plate, the connecting frame and the sealing cover plate are connected through two connecting mechanisms, the upper surface of the sealing cover plate is fixedly embedded with a heat conduction plate, the upper surface of the heat conduction plate is installed with a group of heat dissipation fins, the outer surface of the sealing cover plate is installed with a self-cleaning mechanism, the self-cleaning mechanism comprises a support frame fixedly connected to the outer surface of the sealing cover plate, the outer surface of the support frame is fixedly embedded with a motor, the output end of the motor is installed with a reciprocating screw rod, the outer surface of the reciprocating screw rod is threadedly connected with a moving plate, the bottom surface of the moving plate is installed with a cleaning scraper, and the cleaning scraper is matched with the heat dissipation fin, the bottom surface of the sealing cover plate is installed with two heat-conducting silica gel sheets, the inner wall of the anti- electric shock protection shell two is installed with an elastic bearing assembly, the right side surface of the anti- electric shock protection shell one is installed with an air inlet mechanism, and the left side surface of the anti- electric shock protection shell one is installed with two air outlet mechanisms.

[0007] Further, the inner top wall of the support frame is provided with a sliding groove, the inner wall of the sliding groove is slidably connected with a sliding block, and the sliding block is connected with the moving plate.

[0008] Further, the left and right ends of the moving plate are slidably connected with guide rods, and the two ends of the two guide rods are installed with support strips, and the bottom end of each support strip is connected with the outer surface of the sealing cover plate.

[0009] Further, the connecting mechanism comprises a connecting plate one fixedly connected to the outer surface of the sealing cover plate and a connecting plate two fixedly connected to the outer surface of the connecting frame, and the connecting plate one and the connecting plate two are connected through a group of connecting bolts.

[0010] Further, the elastic bearing assembly comprises an electric power electronic device bearing plate slidably connected to the inner wall of the anti- electric shock protection shell two, and two groups of springs are installed on the bottom surface of the electric power electronic device bearing plate, and the bottom end of the spring is connected with the inner bottom wall of the anti- electric shock protection shell two.

[0011] Further, the air inlet mechanism comprises an air inlet frame fixedly embedded on the left side surface of the anti- electric shock protection shell one, and a dust screen is installed on the inner wall of the air inlet frame.

[0012] Further, the air outlet mechanism comprises an air outlet cylinder fixedly embedded on the right side surface of the connecting frame, a protective net is installed on the inner wall of the air outlet cylinder, and a fan is installed on the inner wall of the air outlet cylinder.

[0013] Compared with the prior art, the electric shock prevention power electronic heat dissipation device has the following beneficial effects:

[0014] The application is provided by the cooperation between the connecting frame, the first anti-creeping protective shell, the second anti-creeping protective shell, the ceramic insulation layer, the sealing cover plate, the connecting mechanism, the heat-conducting plate, the heat dissipation fin, the self-cleaning mechanism, the heat-conducting silica gel sheet, the elastic bearing assembly, the air inlet mechanism and the air outlet mechanism, the first anti-creeping protective shell, the second anti-creeping protective shell and the ceramic insulation layer are arranged, the anti-creeping protection of the power electronic device is realized, the self-cleaning mechanism is used to automatically clean the dust on the heat dissipation fin, and the heat dissipation effect of the heat dissipation device on the power electronic device is ensured.

[0015] The application is provided by the cooperation between the first connecting plate, the second connecting plate, the connecting bolt, the power electronic device bearing plate and the spring, the power electronic device is placed on the upper surface of the power electronic device bearing plate, the first connecting plate and the second connecting plate are connected by the connecting bolt, the connecting frame and the sealing cover plate are installed, the heat-conducting plate and the heat-conducting silica gel sheet are used to extrude the power electronic device downward, the spring is compressed, the power electronic device is installed in the second anti-creeping protective shell for use, and the power electronic device is safely protected.

[0016] The application is provided by the cooperation between the heat-conducting plate, the heat dissipation fin, the support frame, the motor, the reciprocating screw rod, the moving plate, the cleaning scraper, the sliding groove, the sliding block, the guide sleeve, the guide rod and the support strip, the motor works to drive the reciprocating screw rod to rotate, the reciprocating screw rod rotates to drive the moving plate to reciprocate under the guidance of the sliding groove and the sliding block, the moving plate drives the cleaning scraper to reciprocate, the cleaning scraper enters between two adjacent heat dissipation fins, the cleaning scraper can scrape off the dust adhered to the outer surface of the heat dissipation fin, the dust adhered to the outer surface of the heat dissipation fin can be automatically cleaned, and the heat dissipation effect of the heat dissipation fin is ensured.

[0017] The application is provided by the cooperation between the first anti-creeping protective shell, the second anti-creeping protective shell, the sealing cover plate, the air inlet frame, the dust screen, the air outlet cylinder, the protective screen and the fan, the fan works to blow out the air in the second anti-creeping protective shell through the air outlet cylinder, the external air enters the second anti-creeping protective shell through the air inlet frame, the air in the second anti-creeping protective shell is replaced, the heat dissipation effect of the power electronic device is further improved, and the power electronic device can work normally at high power. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective structural schematic view of the right view of the application;

[0019] Figure 2It is a stereogram of the left view of the application;

[0020] Figure 3 It is a schematic diagram of the internal structure of the anti-creeping protective shell one of the application;

[0021] Figure 4 It is a schematic diagram of the stereogram of the sealing cover plate of the application;

[0022] Figure 5 It is a schematic diagram of the internal structure of the air outlet cylinder of the application;

[0023] Figure 6 It is a schematic diagram of the stereogram of the self-cleaning mechanism of the application;

[0024] Figure 7 It is a schematic diagram of the stereogram of the support frame of the application.

[0025] In the figure: 1, connecting frame; 2, anti-creeping protective shell one; 3, anti-creeping protective shell two; 4, ceramic insulation layer; 5, sealing cover plate; 6, connecting mechanism; 601, connecting plate one; 602, connecting plate two; 603, connecting bolt; 7, heat-conducting plate; 8, heat dissipation fin; 9, self-cleaning mechanism; 901, support frame; 902, motor; 903, reciprocating screw rod; 904, moving plate; 905, cleaning scraper; 906, sliding groove; 907, sliding block; 908, guide sleeve; 909, guide rod; 910, support strip; 10, heat-conducting silica gel sheet; 11, elastic bearing assembly; 111, power electronic device bearing plate; 113, spring; 12, air outlet mechanism; 121, air outlet cylinder; 122, protective net; 123, fan; 13, air inlet mechanism; 131, air inlet frame; 132, dustproof net. DETAILED DESCRIPTION

[0026] The principles and features of the application are described below in conjunction with the accompanying drawings, and the examples are only used to explain the application and are not used to limit the scope of the application.

[0027] The application is further described in detail below in conjunction with the accompanying drawings and examples.

[0028] Example one

[0029] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, an electric shock prevention power electronic heat sink, including a connecting frame 1, the bottom surface of the connecting frame 1 is fixedly connected with an anti- electric shock protection shell one 2, the inside of the anti- electric shock protection shell one 2 is provided with an anti- electric shock protection shell two 3, a ceramic insulation layer 4 is arranged between the anti- electric shock protection shell one 2 and the anti- electric shock protection shell two 3, a sealing cover plate 5 is placed on the upper surface of the connecting frame 1, the connecting frame 1 and the sealing cover plate 5 are connected through two symmetrical connecting mechanisms 6, the upper surface of the sealing cover plate 5 is fixedly embedded with a heat conduction plate 7, the upper surface of the heat conduction plate 7 is installed with a group of equidistantly arranged heat dissipation fins 8, the outer surface of the sealing cover plate 5 is installed with a self-cleaning mechanism 9, the bottom surface of the sealing cover plate 5 is installed with two symmetrical heat conduction silica gel pieces 10, the inner wall of the anti- electric shock protection shell two 3 is installed with an elastic bearing assembly 11, the right side surface of the anti- electric shock protection shell one 2 is installed with an air inlet mechanism 13, and the right side surface of the anti- electric shock protection shell one 2 is installed with two symmetrical air outlet mechanisms 12.

[0030] In the embodiment, the upper surface of the anti- electric shock protection shell two 3 is connected with the bottom surface of the connecting frame 1, and an insulating coating is applied to the inner wall of the connecting frame 1 and the inner wall of the anti- electric shock protection shell two 3, which can further ensure the insulation of the device, a sealing ring is arranged between the connecting frame 1 and the sealing cover plate 5, which can ensure the sealing effect between the connecting frame 1 and the sealing cover plate 5, an installation groove adapted to the heat conduction plate 7 is formed on the upper surface of the sealing cover plate 5, which can enable the heat conduction plate 7 to be installed inside the installation groove for use, the heat inside the heat conduction plate 7 can be transferred to the heat dissipation fins 8, the contact area with air can be increased by using the heat dissipation fins 8, which can facilitate heat dissipation of the heat conduction plate 7, and adhesive glue is arranged on the upper surface of the heat conduction silica gel piece 10, so that the heat conduction silica gel piece 10 is pasted on the bottom surface of the heat conduction plate 7 for use, which can transfer heat to the inside of the heat conduction plate 7.

[0031] The working steps of the embodiment are as follows:

[0032] As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the heat sink is used, the to-be-installed power electronic device is placed inside the anti-creeping protective shell two 3, so that the elastic bearing assembly 11 bears the power electronic device, then the sealing cover plate 5 is covered on the upper surface of the connecting frame 1, which can make the heat-conducting silica gel sheet 10 contact with the upper surface of the power electronic device, then the two connecting mechanisms 6 are used to connect the connecting frame 1 and the sealing cover plate 5, which can conveniently install the power electronic device inside the anti-creeping protective shell two 3 for use. The anti-creeping protective shell one 2, the anti-creeping protective shell two 3 and the ceramic insulation layer 4 can be used to safely protect the power electronic device inside the anti-creeping protective shell two 3, avoid the risk of electric shock, and the heat generated by the power electronic device during work can be transmitted to the inside of the heat-conducting plate 7 through the heat-conducting silica gel sheet 10. The heat-conducting plate 7 can be effectively cooled by the heat dissipation fins 8, so as to cool the power electronic device. When the power electronic device works at high power and generates a large amount of heat, the air outlet mechanism 12 is started, and the air outlet mechanism 12 can discharge the air inside the anti-creeping protective shell two 3, so as to make the external air enter the inside of the anti-creeping protective shell two 3 through the air inlet mechanism 13, replace the air inside the anti-creeping protective shell two 3, further improve the heat dissipation effect of the power electronic device, and ensure the normal high-power work of the power electronic device.

[0033] Embodiment two

[0034] As shown in Figure 1 , Figure 2 and Figure 3 , the connecting mechanism 6 includes a connecting plate one 601 fixedly connected to the outer surface of the sealing cover plate 5 and a connecting plate two 602 fixedly connected to the outer surface of the connecting frame 1, and the connecting plate one 601 and the connecting plate two 602 are connected through a group of equidistantly arranged connecting bolts 603.

[0035] The elastic bearing assembly 11 includes a power electronic device bearing plate 111 slidingly connected to the inner wall of the anti-creeping protective shell two 3, and two groups of equidistantly arranged springs 113 are installed on the bottom surface of the power electronic device bearing plate 111, and the bottom ends of the springs 113 are connected with the inner bottom wall of the anti-creeping protective shell two 3.

[0036] In the embodiment, the upper surface of the connecting plate one 601 is provided with a through hole matched with the connecting bolt 603, and the upper surface of the connecting plate two 602 is provided with a threaded hole matched with the connecting bolt 603, so that the connecting plate one 601 and the connecting plate two 602 can be conveniently installed by using the connecting bolt 603. The inner wall of the anti-creeping protective shell two 3 can be provided with a guide groove, the inner wall of the guide groove is slidably connected with a guide block, the guide block is connected with the power electronic device bearing plate 111, the power electronic device bearing plate 111 can be guided and limited, and the spring 113 can provide elastic force to the power electronic device bearing plate 111.

[0037] The working steps of the embodiment are as follows:

[0038] As shown in Figure 1 , Figure 2 and Figure 3 , when the power electronic device needs to be installed inside the anti-creeping protective shell two 3 for use, the power electronic device is first placed inside the anti-creeping protective shell two 3, so that the power electronic device bearing plate 111 bears the power electronic device, then the sealing cover plate 5 is covered on the upper surface of the connecting frame 1, the connecting plate one 601 corresponds to the connecting plate two 602, the connecting bolt 603 connects the connecting plate one 601 and the connecting plate two 602, the connecting frame 1 and the sealing cover plate 5 can be conveniently installed, the heat-conducting plate 7 and the heat-conducting silica gel sheet 10 can downwardly press the power electronic device, the power electronic device bearing plate 111 can compress the spring 113, and the power electronic device is installed inside the anti-creeping protective shell two 3 for use, so that the power electronic device is safely protected.

[0039] Embodiment three

[0040] As shown in Figure 1 , Figure 2 , Figure 6 , and Figure 7 , the self-cleaning mechanism 9 comprises a support frame 901 fixedly connected to the outer surface of the sealing cover plate 5, the outer surface of the support frame 901 is fixedly embedded with a motor 902, the output end of the motor 902 is installed with a reciprocating screw rod 903, the outer surface of the reciprocating screw rod 903 is threadedly connected with a moving plate 904, the bottom surface of the moving plate 904 is installed with a cleaning scraper 905 matched with the heat dissipation fin 8, the inner top wall of the support frame 901 is provided with a sliding groove 906, the inner wall of the sliding groove 906 is slidably connected with a sliding block 907 connected with the moving plate 904, the outer surface of the moving plate 904 is fixedly embedded with two symmetrical guide sleeves 908, the inner walls of the two guide sleeves 908 are slidably connected with guide rods 909, the two ends of the two guide rods 909 are installed with support strips 910, and the bottom ends of the support strips 910 are connected with the outer surface of the sealing cover plate 5.

[0041] In the embodiment, two bearings are fixedly embedded in the inner wall of the support frame 901, the two ends of the reciprocating screw rod 903 are connected with the inner rings of the two bearings respectively, the rotation accuracy of the reciprocating screw rod 903 is ensured, the output end of the motor 902 extends to the inner ring of the bearing and is connected with the reciprocating screw rod 903, the shape and size of the cleaning scraper 905 are the same as the interval between the two adjacent heat dissipation fins 8, the cleaning scraper 905 can pass through the inside of the two heat dissipation fins 8, the outer surface of the cleaning scraper 905 is in contact with the outer surface of the two adjacent heat dissipation fins 8, when the moving plate 904 moves, the sliding block 907 can slide on the inner wall of the sliding groove 906, the moving plate 904 is guided and limited, the stability of the moving plate 904 during movement is ensured, when the moving plate 904 moves, the guide sleeve 908 embedded on the outer surface of the moving plate 904 slides on the outer surface of the guide rod 908, the moving plate 904 is further guided and limited, the stability of the moving plate 904 during movement is ensured.

[0042] The working steps of the embodiment are as follows:

[0043] As shown in Figure 1 , Figure 2 , Figure 6 , and Figure 7 , when the heat dissipation fins 8 are contaminated with dust after being used for a period of time, the motor 902 is started, the output end of the motor 902 rotates to drive the reciprocating screw rod 903 to rotate, the reciprocating screw rod 903 rotates to make the moving plate 904 reciprocate under the guidance of the sliding groove 906 and the sliding block 907, so that the moving plate 904 drives the cleaning scraper 905 to reciprocate, the cleaning scraper 905 enters between the two adjacent heat dissipation fins 8, the cleaning scraper 905 can scrape off the dust on the outer surface of the heat dissipation fins 8, the dust on the outer surface of the heat dissipation fins 8 can be automatically cleaned, and the heat dissipation effect of the heat dissipation fins 8 is ensured.

[0044] Embodiment Four

[0045] As shown in Figure 1 , Figure 2 , Figure 3 , and Figure 5 , the air inlet mechanism 13 includes an air inlet frame 131 fixedly embedded on the left side of the leakage protection shell 2, and a dust screen 132 is installed on the inner wall of the air inlet frame 131.

[0046] The air outlet mechanism 12 includes an air outlet cylinder 121 fixedly embedded on the right side of the connecting frame 1, a protective screen 122 is installed on the inner wall of the air outlet cylinder 121, and a fan 123 is installed on the inner wall of the air outlet cylinder 121.

[0047] In the embodiment, the air inlet frame 131 and the air outlet cylinder 121 are made of insulating materials, installation grooves matched with the air inlet frame 131 are formed on the outer surfaces of the anti-creeping protective shell one 2 and the anti-creeping protective shell two 3, and installation grooves matched with the air outlet cylinder 121 are formed on the outer surfaces of the anti-creeping protective shell one 2 and the anti-creeping protective shell two 3, so that the air inlet frame 131 and the air outlet cylinder 121 can be conveniently installed and communicated with the interior of the anti-creeping protective shell two 3.

[0048] The working steps of the embodiment are as follows:

[0049] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 5 , when the power electronic device generates a large amount of heat during high-power work, the fan 123 inside the air outlet cylinder 121 is started, the fan 123 can blow the air in the anti-creeping protective shell two 3 out through the air outlet cylinder 121, the external air can enter the interior of the anti-creeping protective shell two 3 through the air inlet frame 131, the air in the anti-creeping protective shell two 3 can be replaced, the heat dissipation effect of the power electronic device can be further improved, the normal high-power work of the power electronic device can be ensured, the air entering the interior of the anti-creeping protective shell two 3 can be filtered by the dust screen 132, dust in the air can be prevented from entering the interior of the anti-creeping protective shell two 3 to damage the power electronic device installed in the anti-creeping protective shell two 3, and the fan 123 inside the air outlet cylinder 121 can be protected by the protective screen 122 to prevent foreign matters from entering the interior of the air outlet cylinder 121 to damage the fan 123.

[0050] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, and a particular orientation configuration and operation, therefore, it cannot be understood as a limitation on the present application. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, unless otherwise specified, the meaning of "multiple" is two or more.

[0051] It should be noted that the standard parts used in the present application can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, and the mechanical parts and equipment adopt the conventional type in the prior art, and the inventor will not describe them in detail here.

[0052] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] The above describes one embodiment of the present application in detail, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the patent coverage of the present application.

Claims

1. An electric shock proof power electronic heat sink comprising a connecting frame (1), characterized in that: The bottom surface of the connecting frame (1) is fixedly connected with an anti-creeping protective shell one (2), the inside of the anti-creeping protective shell one (2) is provided with an anti-creeping protective shell two (3), a ceramic insulation layer (4) is arranged between the anti-creeping protective shell one (2) and the anti-creeping protective shell two (3), the upper surface of the connecting frame (1) is placed with a sealing cover plate (5), the connecting frame (1) and the sealing cover plate (5) are connected through two connecting mechanisms (6), the upper surface of the sealing cover plate (5) is fixedly embedded with a heat conduction plate (7), the upper surface of the heat conduction plate (7) is installed with a group of heat dissipation fins (8), the outer surface of the sealing cover plate (5) is installed with a self-cleaning mechanism (9), the self-cleaning mechanism (9) comprises a supporting frame (901) fixedly connected to the outer surface of the sealing cover plate (5), the outer surface of the supporting frame (901) is fixedly embedded with a motor (902), the output end of the motor (902) is installed with a reciprocating lead screw (903), the outer surface of the reciprocating lead screw (903) is threadedly connected with a moving plate (904), the bottom surface of the moving plate (904) is installed with a cleaning scraper (905), and the cleaning scraper (905) is matched with the heat dissipation fins (8), the inner top wall of the supporting frame (901) is provided with a sliding groove (906), the inner wall of the sliding groove (906) is slidably connected with a sliding block (907), and the sliding block (907) is connected with the moving plate (904), the bottom surface of the sealing cover plate (5) is installed with two heat-conducting silica gel sheets (10), the inner wall of the anti-creeping protective shell two (3) is installed with an elastic bearing assembly (11), the elastic bearing assembly (11) comprises an electric power electronic device bearing plate (111) slidably connected to the inner wall of the anti-creeping protective shell two (3), the bottom surface of the electric power electronic device bearing plate (111) is installed with two groups of springs (113), and the bottom ends of the springs (113) are connected with the inner bottom wall of the anti-creeping protective shell two (3), the right side of the anti-creeping protective shell one (2) is installed with an air inlet mechanism (13), and the left side of the anti-creeping protective shell one (2) is installed with two air outlet mechanisms (12).

2. The power electronics heat sink that prevents electric shock according to claim 1, characterized in that: The left and right ends of the moving plate (904) are slidably connected with guide rods (908), the two ends of the two guide rods (908) are installed with supporting strips (909), and the bottom end of each supporting strip (909) is connected with the outer surface of the sealing cover plate (5).

3. The power electronics heat sink that prevents electric shock according to claim 1, characterized in that: The connecting mechanism (6) comprises a connecting plate one (601) fixedly connected to the outer surface of the sealing cover plate (5) and a connecting plate two (602) fixedly connected to the outer surface of the connecting frame (1), and the connecting plate one (601) and the connecting plate two (602) are connected through a group of connecting bolts (603).

4. The power electronics heat sink that prevents electric shock according to claim 1, characterized in that: The air inlet mechanism (13) comprises an air inlet frame (131) fixedly embedded in the left side of the anti-creeping protective shell one (2), and the inner wall of the air inlet frame (131) is installed with a dust screen (132).

5. The power electronics heat sink that prevents electric shock according to claim 1, wherein: The air outlet mechanism (12) comprises an air outlet cylinder (121) fixedly embedded in the right side surface of the connecting frame (1), the inner wall of the air outlet cylinder (121) is provided with a protective net (122), and the inner wall of the air outlet cylinder (121) is provided with a fan (123).

Images