A device for testing inverter aging

Abstract

The present invention discloses an inverter aging test device, comprising a frame, wherein a base for supporting the frame is provided at the bottom of the frame, and a plurality of inverters are provided on one side of the frame, wherein the plurality of inverters include a main body 1 and a main body 2, and a ventilation port is provided on one side of the main body 1 and the main body 2, and a plurality of connecting wires are provided on the bottom of each inverter, a temperature monitor 1 is provided on one side of the main body 1, and a temperature monitor 2 is provided on one side of the main body 2, and a motor for receiving electrical signals from the temperature monitor 1 and the temperature monitor 2 is provided on one side of the frame, and a power-off mechanism for cutting off the power-on state of the inverter is provided inside the frame. In this inverter aging test device, the inverter can be easily disconnected from the connecting wire by the mutual cooperation of the pressing component and the driving component in the power-off mechanism, and the inverter that is about to be overloaded can be effectively powered off in time, thereby reducing damage to the electronic components inside the inverter.

Description

Technical Field

[0001] The present invention relates to the technical field of inverter testing, and in particular to an inverter aging testing device. Background Art

[0002] An inverter converts DC power into constant-frequency, constant-voltage, or frequency-modulated, voltage-regulated AC power. It consists of an inverter bridge, control logic, and filtering circuits. It is widely used in air conditioners, home theaters, electric grinding wheels, power tools, sewing machines, DVDs, VCDs, computers, televisions, washing machines, range hoods, refrigerators, VCRs, massagers, fans, and lighting.

[0003] Currently, inverter aging tests are usually conducted by placing multiple completed inverters on top of a test stand, connecting the inverter's various interfaces to high-power electrical equipment, and operating the inverter in an overclocked state for three to eight hours. This method ultimately produces a more reliable aging time for the inverter. During the inverter aging test, manual real-time monitoring of various values ​​of each machine is required. Since the test takes a long time and manual monitoring time is limited, if the inverter under aging test reaches its overload peak during the staff changeover and the staff fails to deal with it in a timely manner, it may cause certain damage to the electronic components inside the inverter. To this end, we propose an inverter aging test device. Summary of the Invention

[0004] The object of the present invention is to provide an inverter aging test device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an inverter aging test device, comprising a frame, a base for supporting the frame is provided at the bottom of the frame, a plurality of inverters are provided on one side of the frame, the plurality of inverters include a main body 1 and a main body 2, a ventilation port is provided on one side of the main body 1 and the main body 2, a plurality of connecting wires are provided on the bottom of the inverter, a temperature monitor 1 is provided on one side of the main body 1, a temperature monitor 2 is provided on one side of the main body 2, a motor for receiving electrical signals from the temperature monitor 1 and the temperature monitor 2 is provided on one side of the frame, a power-off mechanism for cutting off the power-on state of the inverter is provided inside the frame; a shell for supporting the inverter is provided at the bottom of the inverter, the power-off mechanism includes a clamping assembly for clamping a plurality of power lines, and the power-off mechanism also includes a driving assembly for pushing the horizontal height of the shell upward, and the driving assembly is connected to the clamping assembly.

[0006] Preferably, the clamping assembly includes multiple groups of clamping blocks located outside the power cord, the clamping blocks include an extrusion part and a magnetic part, a connecting column is provided on one side of the clamping block, the outer wall of the connecting column is provided with a connecting tube 1, and the bottoms of multiple clamping blocks are provided with a receiving plate, the outer wall of the connecting tube 1 is provided with a connecting plate 1, one end of the connecting plate 1 is fixedly connected to the frame, one side of the receiving plate is fixedly connected to the connecting plate 1, the outer wall of the connecting tube 1 is provided with a connecting tube 2, and one end of the connecting tube 2 is provided with a vent tube.

[0007] Preferably, a support rod is provided inside the ventilator, a slide is provided at one end of the support rod, a connecting rod 1 is provided above the slide, a connecting rod 2 is provided on one side of the connecting rod 1, and a plurality of limit blocks are provided at one end of the connecting rod 2, and the limit blocks are all located between the clamping blocks.

[0008] The transmission gear of said sliding panel also is provided with an interlocking plate, and the interlocking plate is connected with the gear train of said sliding panel to the interlocking plate, and the interlocking plate is connected with the gear train of said sliding panel to the interlocking plate.

[0009] Preferably, one side of each of the carrier plates 1 and 2 is provided with an insertion rod, the insertion rod passes through the frame, a limiting rod is provided inside the frame, a spring 2 is provided outside the limiting rod, a connecting plate 3 is provided at one end of the limiting rod, and a limiting hole for inserting the limiting rod is provided inside the insertion rod.

[0010] Preferably, a plurality of controllers are provided on one side of the rack, a fan is provided inside the rack, the controller is electrically connected to the fan and is used to start or shut down the fan, a ventilation pipe is provided at the end of the fan, and the ends of the carrier plate 1 and the carrier plate 2 are on the same vertical line with the controller.

[0011] Preferably, an air expansion shell is provided at the end of the ventilation duct, and the overall shape of the air expansion shell is a trapezoid that opens outward.

[0012] Preferably, the bottom end of the limit block is shaped like an inclined surface, and one end of the magnetic part is shaped like an inclined surface. When the limit block descends along with the connecting rod 2, the inclined surface area of ​​the limit block contacts the inclined surface area of ​​the magnetic part.

[0013] Preferably, the end of the limiting rod is shaped like an arc surface.

[0014] Preferably, the interior of the expansion body is a cavity filled with gas, and the expansion body is made of elastic material.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In the present invention, during the inverter aging test, temperature monitor 1 and temperature monitor 2 can monitor the temperature of their respective corresponding inverters. When the temperature of the main body 1 is higher than the preset value, the motor will rotate forward under the signal of temperature monitor 1, and the motor will drive the connecting piece outside the connecting shaft 1 to rotate, thereby allowing the gas inside the expansion body to enter the interior of the ventilation pipe, and then drive the sliding piece to rise, so that the limit block is separated from between the clamping blocks, and finally the magnetic parts of the clamping blocks are attracted to each other, and the connecting line is preliminarily tightened. At the same time, the gas will enter the interior of the connecting cylinder 1, so that the connecting column on one side of each clamping block is squeezed, and the pressure is increased again. The tightening of the connecting wire is strengthened. At the same time, the motor also causes the gear 1 and the carrier plate to transmit to each other and drive it to rise. Since the connecting wire is in a tightened state, the main body 1 can be easily separated from the connecting wire, and the inverter that is about to overload can be effectively powered off in time, reducing damage to the electronic components inside the inverter. This movement process, through the mutual cooperation of the clamping component and the driving component, not only facilitates the staff to disassemble the inverter, but also allows the main body 1 with a higher temperature to be away from the main body 2 that is still under normal testing, so that the higher heat source reduces the impact on the main body 2 during normal testing, thereby increasing the accuracy of the overall test data.

[0017] 2. In the present invention, due to the special shape of the internal gear blocks of carrier plate 1 and carrier plate 2, and under the elastic force of spring 1, when one of the inverters of body 1 or body 2 is overloaded, the motor will rotate forward and reverse in different directions under the corresponding signals of temperature monitor 1 and temperature monitor 2. During this process, only the carrier plate behind the overloaded inverter will be lifted, thereby enabling targeted power-off of the overloaded inverter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a front view of the structure of the present invention;

[0020] Figure 3It is a schematic diagram of the local structure of the present invention;

[0021] Figure 4 This is a schematic structural diagram of the compression assembly of the present invention;

[0022] Figure 5 It is a cross-sectional view of the local structure of the present invention;

[0023] Figure 6 For the present invention Figure 5 A magnified view of the structure of the middle A area;

[0024] Figure 7 For the present invention Figure 5 A magnified view of the structure of the middle B region;

[0025] Figure 8 It is a cross-sectional view of the local structure of the present invention;

[0026] Figure 9 This is a cross-sectional view of the structure of the present invention from another angle;

[0027] Figure 10 For the present invention Figure 9 A magnified view of the structure of the middle C region.

[0028] In the figure: 1-frame; 2-base; 3-inverter; 31-body 1; 32-body 2; 4-ventilation port; 5-connecting wire; 6-power-off mechanism; 7-clamping assembly; 71-clamping block; 711-extrusion part; 712-magnetic part; 72-connecting column; 73-connecting cylinder 1; 74-supporting plate; 75-connecting plate 1; 76-connecting cylinder 2; 77-ventilator; 8-drive assembly; 81-connecting shaft 1; 82-bevel gear 1; 83-bevel gear 2; 84-connecting shaft 2; 85-connecting plate 2; 86-gear 1; 87-gear Wheel 2; 88-Carrier plate 1; 89-Carrier plate 2; 810-Gear block; 811-Spring 1; 812-Connecting plate; 813-Expansion body; 814-Connecting cylinder 3; 9-Temperature monitor 1; 10-Temperature monitor 2; 11-Motor; 12-Casing; 13-Support rod; 14-Slide; 15-Connecting rod 1; 16-Connecting rod 2; 17-Limiting block; 18-Inserting rod; 19-Limiting rod; 20-Spring 2; 21-Connecting plate 3; 22-Limiting hole; 23-Controller; 24-Fan; 25-Ventilation duct; 26-Air expansion shell. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-10 The present invention provides a technical solution: an inverter aging test device. This solution solves the problem that when the staff changes shifts, the inverter in the aging test has reached the overload peak, and the staff fails to deal with it in time, which may cause certain damage to the electronic components inside the inverter. This solution makes corresponding improvements to the above problems, including a rack 1, a base 2 for supporting it is provided at the bottom of the rack 1, the bottom of the rack 1 is fixedly connected to the base 2, a plurality of inverters 3 are provided on one side of the rack 1, the plurality of inverters 3 include a main body 31 and a main body 32, a ventilation port 4 is provided on one side of the main body 31 and the main body 2 32, a plurality of connecting wires 5 are provided on the bottom of the inverter 3, the inverter 3 is connected to an external power supply through the connecting wires 5, and performs aging tests for a long time, a temperature monitor 9 is provided on one side of the main body 31, a temperature monitor 2 10 is provided on one side of the main body 2 32, and a motor for receiving electrical signals from the temperature monitor 9 and the temperature monitor 2 10 is provided on one side of the rack 1 11. The motor 11 is fixedly connected to the fuselage through a connecting frame. The bottoms of the temperature monitor 1 9 and the temperature monitor 2 10 are fixedly connected to the frame 1, and the two are respectively located at the ventilation hole positions of the body 1 31 and the body 2 32. Therefore, the temperature monitor 1 9 and the temperature monitor 2 10 can monitor the temperature inside the inverter 3 in a more accurate environment. Then, when the temperature inside the inverter 3 is higher than the preset value, the temperature monitor can promptly send a start-up electrical signal to the motor 11. It is worth noting that the temperature monitor 1 9 can send an electrical signal to make the motor 11 rotate forward, while the temperature monitor 2 10 sends an electrical signal to make the motor 11 rotate in the reverse direction. A power-off mechanism 6 for cutting off the power supply state of the inverter 3 is provided inside the frame 1; a shell 12 for supporting the inverter 3 is provided at the bottom thereof, and the power-off mechanism 6 includes a clamping assembly 7 for clamping multiple power cords, and the power-off mechanism 6 also includes a driving assembly 8 for pushing the horizontal height of the shell 12 upward, and the driving assembly 8 is connected to the clamping assembly 7;

[0031] The clamping assembly 7 in this scheme includes multiple groups of clamping blocks 71 located outside the power cord, the clamping block 71 includes an extrusion portion 711 and a magnetic portion 712, and the magnetic portions 712 have a magnetic force that attracts each other. A connecting column 72 is provided on one side of the clamping block 71 and is fixedly connected thereto. A connecting cylinder 73 is provided on the outer wall of the connecting cylinder 72. The connecting column 72 is slidably connected to the connecting cylinder 73. A plurality of clamping blocks 71 are provided with a receiving plate 74 at the bottom. The clamping block 71 is slidably connected to the receiving plate 74. A connecting plate 75 is provided on the outer wall of the connecting cylinder 73 and is fixedly connected thereto. One end of the connecting plate 75 is fixedly connected to the frame 1, and one side of the receiving plate 74 is fixedly connected to the connecting plate 75. A connecting cylinder 2 76 is provided on the outer wall of the connecting cylinder 1 73 and is connected thereto. A vent cylinder 77 is provided on one end of the connecting cylinder 2 76 and is connected thereto. A support rod 13 is provided inside the vent cylinder 77. The support rod When the locking cam 71 is in the unlocking state, the locking cam 71 is in the unlocking state, and the locking cam 71 is in the unlocking state, so that the locking cam 71 is locked and the locking cam 71 is in the unlocking state.

[0032] Furthermore, the driving assembly 8 includes a connecting shaft 1 81 located below the motor 11, the connecting shaft 1 81 is fixedly connected to the rotating shaft of the motor 11 through a coupling, the outer wall of the connecting shaft 1 81 is provided with a bevel gear 1 82 and is fixedly connected thereto, one side of the bevel gear 1 82 is provided with a bevel gear 2 83 that meshes with it, the inner wall of the bevel gear 2 83 is provided with a connecting shaft 2 84 and is fixedly connected thereto, the outer wall of the connecting shaft 2 84 is provided with a connecting plate 2 85 and is rotatably connected thereto, one end of the connecting plate 2 85 is fixedly connected to the frame 1, the outer wall of the connecting shaft 2 84 is provided with a gear 1 86 and a gear 2 87, the gear 1 86 The gear 1 and the gear 2 87 are fixedly connected to the connecting shaft 2 84, a carrier plate 1 88 is provided on one side of the gear 1 86, and a carrier plate 2 89 is provided on one side of the gear 2 87. The carrier plate 1 88 and the carrier plate 2 89 are respectively located behind the body 1 31 and the body 2 32. A plurality of tooth blocks 810 are provided inside the carrier plate 1 88 and the carrier plate 2 89 and are slidably connected thereto. A spring 1 811 is provided on one side of the plurality of tooth blocks 810 and is fixedly connected thereto. The spring 1 811 located inside the carrier plate 1 88 and the carrier plate 2 89 is fixedly connected to both of them. The gear 1 86 and the gear 2 87 are meshed with the tooth blocks 810, and the carrier plate 1 The bottom ends of 88 and carrier plate 2 89 are fixedly connected to the housing 12, and one side of carrier plate 1 88 and carrier plate 2 89 is provided with an insertion rod 18 and fixedly connected thereto, the insertion rod 18 passes through the frame 1 and is slidably connected thereto, a limit rod 19 is provided inside the frame 1 and is slidably connected thereto, a spring 20 is provided outside the limit rod 19, one end of the limit rod 19 is provided with a connecting plate 3 21 and fixedly connected thereto, the two ends of the spring 20 are respectively fixedly connected to the connecting plate 3 21 and the frame 1, a limit hole 22 for inserting the limit rod 19 is provided inside the insertion rod 18, and the end of the limit rod 19 is shaped into an arc surface, so that when the insertion rod 18 is inserted, the limit rod 19 is inserted into the housing 12. When the rod 18 slides upward, when the end of the limiting rod 19 is aligned with the limiting hole 22, the limiting rod 19 can more easily enter the interior of the insertion rod 18 and effectively limit it. The outer wall of the connecting shaft 1 81 is provided with a connecting piece 812 and is fixedly connected thereto. The outer wall of the connecting piece 812 is provided with an expansion body 813 and is fixedly connected thereto. The interior of the expansion body 813 is a cavity filled with gas. The expansion body 813 is made of elastic material. The inner wall of the expansion body 813 is provided with a connecting tube 3 814 and is fixedly connected thereto. The connecting tube 3 814 is fixedly connected to the frame 1, and one end of the connecting tube 3 814 is connected to the vent tube 77.

[0033] During the aging test of the inverter 3, if the main body 31 is about to be overloaded, the temperature inside it will exceed the preset value of the temperature monitor 9, and then the temperature monitor 9 will send a forward signal to the motor 11, and the motor 11 will drive the connecting shaft 81 and the connecting piece 812 to rotate. The rotating connecting piece 812 will drive the expansion body 813 filled with gas inside to twist, and eventually make the gas inside the expansion body 813 enter the interior of the vent cylinder 77 from the connecting cylinder 3 814, and then the air pressure inside the vent cylinder 77 will drive the slide 14 to rise, and the rising slide 14 will drive the connecting rod 15, the connecting rod 2 16 and the limit block 17 to rise at the same time until the bottom end of the limit block 17 is separated from the resistance of the clamping block 71. The magnetic parts 712 of the two clamping blocks 71 on both sides of the connecting line 5 will be attracted to each other due to the magnetic force, and the connecting lines 5 will be initially tightened. In this state, the height of the slide 14 inside the vent tube 77 is already above the port of the connecting tube 2 76, so the gas inside the expansion body 813 will enter the interior of the connecting tube 1 73 through the connecting tube 2 76, and squeeze each connecting column 72 fixedly connected to the clamping block 71 through the connecting tube 1 73, thereby further strengthening the clamping degree of the clamping blocks 71 on both sides of the connecting line 5, so that the connecting line 5 is in a relatively tight state. At the same time, the rotating motor 11 will also drive the connecting shaft 1 81 and the bevel gear 1 82 to rotate, thereby meshing the bevel gears with the bevel gear 1 82. The second gear 83 will drive the second connecting shaft 84 to rotate, thereby causing the first gear 86 to mesh with the tooth block 810 on the carrier plate 1 88 and rotate, and finally drive the carrier plate 1 88 and the shell 12 carrying the body 1 31 to rise upward at the same time. In this process, the second gear 87 will also rotate accordingly, but the second gear 87 will resist the inclined area of ​​the tooth block 810 above the carrier plate 2 89 under the action of the forward rotation of the motor 11, and further drive the tooth block 810 into the interior of the carrier plate 2 89, so that the carrier plate 2 89 does not move under the rotation of the second gear 87; because the power cord is in a clamped state at this time, the rising carrier plate 1 88 can easily separate the connection end of the body 1 31 from the connecting line 5, thereby effectively disconnecting the inverter 3 that is about to be overloaded in time. This movement process not only facilitates the disassembly of the inverter 3 by the staff, but also allows the body 1 31 with a higher temperature to be away from the body 2 32 which is still under normal testing, so that the higher heat source reduces the impact of the body 2 32 under normal testing, thereby increasing the accuracy of the overall test data. On the contrary, when the body 2 32 under test is about to be overloaded, the temperature monitor 2 10 will also detect the high temperature environment in time, similar to the above process, and send a reverse start signal to the motor 11. The motor 11 in the reverse state will keep the height position of the carrier plate 1 88 unchanged, and move the carrier plate 2 89 upward through the gear 2 87, and finally effectively cut off the power to the body 2 32.

[0034] In addition, a plurality of controllers 23 are provided on one side of the rack 1. The bottom surfaces of the controllers 23 are fixedly connected to the rack 1. A fan 24 is provided inside the rack 1 and is fixedly connected thereto. The controller 23 is electrically connected to the fan 24 and is used to start or shut down the fan 24. A ventilation pipe 25 is provided at the end of the fan 24. The ventilation pipe 25 is fixedly connected to the outlet pipe of the fan 24 and is connected to each other. An air expansion shell 26 is provided at the end of the ventilation pipe 25 and is fixedly connected thereto. The overall shape of the air expansion shell 26 is a trapezoidal shape that opens outward, thereby increasing the coverage range of the wind force inside the ventilation pipe 25 and enhancing the cooling effect inside the inverter 3. The ends of the carrier plate 1 88 and the carrier plate 2 89 are on the same vertical line as the controller 23.

[0035] When the driving assembly 8 drives the overloaded inverter 3 to rise, the top of the carrier plate 1 88 or the carrier plate 2 89 interferes with the controller 23. In this state, the limit rod 19 is inserted into the inside of the insertion rod 18, and the motor 11 is in a stopped state. The vent 4 is located opposite the air diffuser shell 26. At this time, the pressed controller 23 will start the fan 24, and the wind force generated by the fan 24 will pass through the ventilation pipe 25 and the air diffuser shell 26, and blow towards the inside of the inverter 3 facing the vent 4, so that the inside of the inverter 3 that has been powered off can be more comprehensively covered by the wind force, so that the fuselage can be well cooled, so as to appropriately reduce the damage to the electronic components inside the inverter 3.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An inverter aging test device, comprising a frame (1), wherein a base (2) supporting the frame (1) is provided at the bottom thereof, a plurality of inverters (3) are provided on one side of the frame (1), the plurality of inverters (3) comprising a first body (31) and a second body (32), a ventilation opening (4) being provided on one side of the first body (31) and the second body (32), and a plurality of connecting wires (5) being provided at the bottom of each inverter (3). Its characteristics are: A temperature monitor 1 (9) is provided on one side of the main body 1 (31), a temperature monitor 2 (10) is provided on one side of the main body 2 (32), a motor (11) for receiving electrical signals from the temperature monitor 1 (9) and the temperature monitor 2 (10) is provided on one side of the frame (1), a power-off mechanism (6) for cutting off the power-on state of the inverter (3) is provided inside the frame (1), a shell (12) for supporting the inverter (3) is provided at the bottom of the inverter (3), the power-off mechanism (6) includes a clamping assembly (7) for clamping a plurality of power lines, and the power-off mechanism (6) also includes a driving assembly (8) for pushing the shell (12) to lift upward, and the driving assembly (8) is connected to the clamping assembly (7); The clamping assembly (7) includes a plurality of clamping blocks (71) located outside the power cord, the clamping blocks (71) including an extrusion portion (711) and a magnetic portion (712), a connecting column (72) is provided on one side of the clamping blocks (71), a connecting tube (73) is provided on the outer wall of the connecting column (72), a receiving plate (74) is provided on the bottom of the plurality of clamping blocks (71), a connecting plate (75) is provided on the outer wall of the connecting tube (73), one end of the connecting plate (75) is fixedly connected to the frame (1), and one side of the receiving plate (74) is connected to the connecting plate. A connecting tube (75) is fixedly connected, the outer wall of the connecting tube (73) is provided with a connecting tube (76), one end of the connecting tube (76) is provided with a vent tube (77), the interior of the vent tube (77) is provided with a support rod (13), one end of the support rod (13) is provided with a slide (14), a connecting rod (15) is provided above the slide (14), a connecting rod (15) is provided on one side of the connecting rod (15), a plurality of limit blocks (17) are provided at one end of the connecting rod (16), and the limit blocks (17) are all located between the clamping blocks (71); The driving assembly (8) includes a connecting shaft (81) located below the motor (11), the connecting shaft (81) being fixedly connected to the rotating shaft of the motor (11) through a coupling, the outer wall of the connecting shaft (81) being provided with a bevel gear (82), one side of the bevel gear (82) being provided with a bevel gear (83) meshing with the bevel gear, the inner wall of the bevel gear (83) being provided with a connecting shaft (84), the outer wall of the connecting shaft (84) being provided with a connecting plate (85), the outer wall of the connecting shaft (84) being provided with a gear (86) and a gear (87), one side of the gear (86) being provided with a carrier plate (88), one side of the gear (87) being provided with a carrier plate (89), the interiors of the carrier plates (88) and (89) being provided with a plurality of tooth blocks (810), one side of the plurality of tooth blocks (810) being provided with a spring (811), the gears The first gear (86) and the second gear (87) are meshed with the tooth block (810), the bottom ends of the carrier plate (88) and the carrier plate (89) are fixedly connected to the shell (12), the outer wall of the connecting shaft (81) is provided with a connecting piece (812), the outer wall of the connecting piece (812) is provided with an expansion body (813), the inner wall of the expansion body (813) is provided with a connecting tube (814), one end of the connecting tube (814) is connected to the vent tube (77) are connected to each other, one side of the carrier plate 1 (88) and the carrier plate 2 (89) are provided with an insertion rod (18), the insertion rod (18) passes through the frame (1), the interior of the frame (1) is provided with a limit rod (19), the exterior of the limit rod (19) is provided with a spring 2 (20), one end of the limit rod (19) is provided with a connecting plate 3 (21), and the interior of the insertion rod (18) is provided with a limit hole (22) for the limit rod (19) to be inserted.

2. The inverter aging test device according to claim 1, characterized in that: A plurality of controllers (23) are provided on one side of the frame (1), a fan (24) is provided inside the frame (1), the controller (23) is electrically connected to the fan (24) and is used to start or shut down the fan (24), a ventilation pipe (25) is provided at the end of the fan (24), and the ends of the carrier plate 1 (88) and the carrier plate 2 (89) are on the same vertical line as the controller (23).

3. The inverter aging test device according to claim 2, characterized in that: An air diffuser shell (26) is provided at the end of the ventilation pipe (25), and the overall shape of the air diffuser shell (26) is a trapezoidal shape that opens outward.

4. The inverter aging test device according to claim 1, characterized in that: The bottom end of the limit block (17) is shaped like an inclined surface, and one end of the magnetic part (712) is shaped like an inclined surface. When the limit block (17) descends along with the second connecting rod (16), the inclined surface area of ​​the limit block (17) and the inclined surface area of ​​the magnetic part (712) contact each other.

5. The inverter aging test device according to claim 1, characterized in that: The end of the limiting rod (19) is shaped into an arc surface.

6. The inverter aging test device according to claim 1, characterized in that: The interior of the expansion body (813) is a cavity filled with gas, and the expansion body (813) is made of elastic material.

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