Variable frequency series resonant withstand voltage test device

Abstract

The utility model relates to a kind of frequency conversion series resonance withstand voltage test device, including base, the base two sides are equipped with fixed slot, fixed assembly is equipped in the fixed slot, the base bottom end four corners are equipped with moving assembly and its rotary connection, the base one side is equipped with push hand and its fixed connection, the base top center is equipped with protection cabinet, installation assembly is equipped in the protection cabinet.Electric motor is rotated by drive connecting shaft rotation and drives screw rotation, makes threaded slide piece move with its rotation, and drives mounting rack to move, slider moves synchronously with threaded slide piece in sliding slot, when reaching the position of the limit block at the end of sliding slot, motor stops working, at this time, test assembly is completely removed from protection cabinet, and experimental work can be carried out, when work is completed, open motor again to make it retract installation assembly into protection cabinet, without staff frequent manual adjustment position, reduce the burden of staff.

Description

Technical Field

[0001] This utility model relates to the field of withstand voltage testing technology, specifically a variable frequency series resonant withstand voltage testing device. Background Technology

[0002] The field of withstand voltage testing technology is a core area for ensuring the insulation safety of electrical equipment. By applying specific high voltages, it tests the insulation performance of equipment and identifies potential hazards such as leakage and breakdown. It is widely used in power, manufacturing, and operation and maintenance scenarios. The core technologies are divided into two categories: one is power frequency withstand voltage (simulating daily voltage, suitable for conventional equipment), and the other is variable frequency series resonant withstand voltage (suitable for large equipment, balancing accuracy and safety). It is necessary to balance high voltage output and equipment protection. In recent years, more emphasis has been placed on safety designs such as intelligent temperature control and automatic discharge, as well as data recording and remote monitoring functions to ensure efficient testing and no equipment damage.

[0003] Chinese patent discloses a variable frequency series resonant withstand voltage test device (authorization announcement number CN221465670U). This patent technology includes a protective box, with sliding grooves fixedly installed at both ends of the lower part of the inner wall of the protective box. A heat dissipation frame is provided at the lower part of the protective box, with sliding blocks fixedly installed at both ends of the heat dissipation frame. A cooling fan is rotatably installed in the middle of the heat dissipation frame. Four limiting grooves are evenly formed on the upper surface of the heat dissipation frame, and limiting mounting blocks are inserted into the limiting grooves. An excitation transformer is fixedly connected to the upper end of the limiting mounting blocks, and the excitation transformer is movably connected to the heat dissipation frame. This patent technology provides a certain degree of protection for the test device when used in the external environment through the protective box, preventing damage to the equipment. The cooling fan dissipates heat from the excitation transformer during use, making the excitation transformer's performance more stable and extending the device's service life. However, the fixing method of this patent technology is not stable enough, and it relies heavily on operators, requiring frequent manual adjustments of the distances of relevant components, increasing the operator's workload. Therefore, those skilled in the art have provided a variable frequency series resonant withstand voltage test device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a variable frequency series resonant withstand voltage test device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A variable frequency series resonant withstand voltage test device includes a base, with fixing grooves on both sides of the base and fixing components in the fixing grooves. Movable components are provided at the four corners of the bottom of the base and rotatably connected to them. A pusher is provided on one side of the base and fixedly connected to it. A protective cabinet is provided at the center of the top of the base and an installation component is provided in the protective cabinet.

[0006] As a further embodiment of this utility model: the fixing component is provided with a hydraulic cylinder, the hydraulic cylinder is fixedly connected to the fixing groove, the hydraulic cylinder is provided with a piston and is slidably connected thereto, the bottom end of the piston is provided with a push rod and is fixedly connected thereto, the bottom end of the push rod is provided with a fixing plate and is fixedly connected thereto, and the bottom end of the fixing plate is provided with an anti-slip pad and is fixedly connected thereto.

[0007] As a further improvement of this utility model: the protective cabinet is provided with a protective door, the protective door is provided with a handle and is fixedly connected to it, the protective door is rotatably connected to it through two folding connectors, the top of the protective cabinet is provided with a storage slot, the top of the storage slot is provided with a top cover and is sealed to it, and the inner wall of the protective cabinet is provided with two sliding grooves near the bottom.

[0008] As a further embodiment of this utility model: the mounting assembly is provided with a mounting bracket, the mounting bracket is provided with heat dissipation grooves on two sides and bottom, a fan is provided in the heat dissipation groove, the fan is rotatably connected to the heat dissipation groove through a rotating shaft, the heat dissipation groove is provided with a plurality of heat dissipation holes, and the bottom of the two sides of the mounting bracket is provided with threaded slides and sliders respectively and fixedly connected thereto, the threaded slides and sliders being slidably connected to the two slide grooves respectively.

[0009] As a further improvement of this utility model: the mounting frame is provided with a test component and fixedly connected thereto, and the test component is provided with several wiring slots and fixedly connected thereto.

[0010] As a further embodiment of this utility model: the protective cabinet is provided with a transmission device, the transmission device is provided with a motor, the motor is fixedly connected to the outer wall of the protective cabinet, the motor is provided with a connecting shaft and rotatably connected thereto, the other end of the connecting shaft is provided with a screw and fixedly connected thereto, the screw is rotatably connected to the slide groove and is connected to the threaded slide piece in a transmission connection.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The hydraulic cylinder drives the piston to move downward, which in turn drives the fixed plate to move downward through the push rod until the anti-slip pad contacts the ground. At this time, the fixing component completes the fixation of the device. Conversely, the hydraulic cylinder drives the piston to move upward, so that the anti-slip pad is released from contact with the ground. The device can then be moved by the moving component and the pusher. 2. The motor drives the screw to rotate through the drive shaft, causing the threaded slide to move with it and move the mounting bracket. The slider moves synchronously with the threaded slide in the groove. When it reaches the limit block at the end of the groove, the motor stops working. At this time, the test component is completely removed from the protective cabinet, and the test can be carried out. When the work is completed, the motor is turned on again to retract the mounting component into the protective cabinet. There is no need for the staff to frequently adjust the position manually, which reduces the burden on the staff. 3. During operation, the three rotating shafts drive the fan to rotate, which blows the heat transferred from the test component to the inner wall of the mounting frame through the heat dissipation grooves, achieving heat dissipation from multiple directions and extending the service life of the test component. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a variable frequency series resonant withstand voltage test device.

[0013] Figure 2 This is a schematic cross-sectional view of a variable frequency series resonant withstand voltage test device.

[0014] Figure 3 In a variable frequency series resonant withstand voltage test device Figure 2 A magnified structural diagram at point A.

[0015] Figure 4 This is a schematic cross-sectional view of the transmission device in a variable frequency series resonant withstand voltage test device.

[0016] Figure 5 This is a schematic diagram of the open state structure of the protection cabinet in a variable frequency series resonant withstand voltage test device.

[0017] Figure 6 This is a schematic diagram of the structure of the components installed in a variable frequency series resonant withstand voltage test device.

[0018] Figure 7 In a variable frequency series resonant withstand voltage test device Figure 6 A schematic diagram of the cross-sectional structure along the axis of rotation.

[0019] In the diagram: 1-Base; 101-Fixing groove; 102-Moving component; 103-Push handle; 2-Fixing component; 201-Hydraulic cylinder; 202-Piston; 203-Push rod; 204-Fixing plate; 205-Anti-slip pad; 3-Protective cabinet; 301-Protective door; 302-Handle; 303-Folding connector; 304-Storage slot; 305-Top cover; 306-Slide groove; 4-Mounting component; 401-Mounting bracket; 402-Heat dissipation groove; 403-Rotating shaft; 404-Fan; 405-Heat dissipation hole; 406-Threaded slide; 407-Slider; 5-Test component; 501-Wiring groove; 6-Transmission device; 601-Motor; 602-Connecting shaft; 603-Screw. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-7 In this embodiment of the present invention, a variable frequency series resonant withstand voltage test device includes a base 1, a fixing groove 101 on both sides of the base 1, a fixing component 2 in the fixing groove 101, a moving component 102 at the four corners of the bottom end of the base 1 and rotatably connected thereto, a pusher 103 on one side of the base 1 and fixedly connected thereto, and a protective cabinet 3 at the center of the top end of the base 1, with an installation component 4 in the protective cabinet 3.

[0022] The fixing component 2 is provided with a hydraulic cylinder 201, which is fixedly connected to the fixing groove 101. The hydraulic cylinder 201 is provided with a piston 202 which is slidably connected to it. The bottom end of the piston 202 is provided with a push rod 203 which is fixedly connected to it. The bottom end of the push rod 203 is provided with a fixing plate 204 which is fixedly connected to it. The bottom end of the fixing plate 204 is provided with an anti-slip pad 205 which is fixedly connected to it.

[0023] The protective cabinet 3 is provided with a protective door 301, and a handle 302 is fixedly connected to the protective door 301. The protective door 301 is rotatably connected to the handle through two folding connectors 303. The top of the protective cabinet 3 is provided with a storage slot 304, and the top of the storage slot 304 is provided with a top cover 305 for sealing connection. The inner wall of the protective cabinet 3 is provided with two sliding grooves 306 at the bottom.

[0024] The mounting assembly 4 includes a mounting bracket 401. The mounting bracket 401 has heat dissipation grooves 402 on its two sides and bottom. A fan 404 is installed in the heat dissipation grooves 402. The fan 404 is rotatably connected to the heat dissipation grooves 402 via a rotating shaft 403. The heat dissipation grooves 402 have a plurality of heat dissipation holes 405. The bottom of the mounting bracket 401 is provided with threaded slides 406 and sliders 407 respectively, which are fixedly connected to it. The threaded slides 406 and sliders 407 are slidably connected to the two sliding grooves 306 respectively.

[0025] The mounting bracket 401 contains a test component 5 which is fixedly connected to it, and the test component 5 has several wiring slots 501 which are fixedly connected to it.

[0026] The protective cabinet 3 is equipped with a transmission device 6, which includes a motor 601. The motor 601 is fixedly connected to the outer wall of the protective cabinet 3. The motor 601 is provided with a connecting shaft 602 that is rotatably connected to it. The other end of the connecting shaft 602 is provided with a screw 603 that is fixedly connected to it. The screw 603 is rotatably connected to the slide groove 306 and is also connected to the threaded slide 406.

[0027] The working principle of this utility model is as follows: The operator moves the device to the desired location using the moving component 102 and the pusher 103. Once in position, the hydraulic cylinder 201 drives the piston 202 downwards, which in turn moves the fixing plate 204 downwards via the push rod 203 until the anti-slip pad 205 contacts the ground. At this point, the fixing component 2 secures the device. Then, the handle 302 opens the protective door 301, and the motor 601 is turned on, causing the motor 601 to drive the connecting shaft 602 to rotate. This, in turn, rotates the screw 603. The screw 603 remains in a fixed position during rotation, causing the threaded sliding member 406 to move with it, thus moving the mounting bracket 401. The slider 407 moves within the groove 30. The 6-axis sliding member 406 moves synchronously and stops when it reaches the limit block at the end of the slide 306. At this time, the test component 5 is moved out of the protective cabinet 3. The staff can connect the external wire to the wiring slot 501 to carry out the test. At the same time, the three rotating shafts 403 drive the fan 404 to rotate, and blow the heat transferred from the test component 5 to the inner wall of the mounting bracket 401 through the heat dissipation slot 402 to achieve heat dissipation from multiple directions, thus extending the service life of the test component 5. When it is necessary to store the working tools, the top cover 305 can be removed and the tools can be put into the storage slot 304 for storage. This way, the staff does not have to carry their own tools frequently.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A variable frequency series resonant withstand voltage test device, comprising a base (1), characterized in that, The base (1) has a fixing groove (101) on both sides, and a fixing component (2) is provided in the fixing groove (101). The base (1) has a moving component (102) at the four corners of the bottom end and is rotatably connected to it. The base (1) has a pusher (103) on one side and is fixedly connected to it. The base (1) has a protective cabinet (3) at the top center and an installation component (4) is provided in the protective cabinet (3). The fixing component (2) is provided with a hydraulic cylinder (201), which is fixedly connected to the fixing groove (101). The hydraulic cylinder (201) is provided with a piston (202) which is slidably connected to it. The bottom end of the piston (202) is provided with a push rod (203) which is fixedly connected to it. The bottom end of the push rod (203) is provided with a fixing plate (204) which is fixedly connected to it. The bottom end of the fixing plate (204) is provided with an anti-slip pad (205) which is fixedly connected to it.

2. The variable frequency series resonant withstand voltage test device according to claim 1, characterized in that, The protective cabinet (3) is provided with a protective door (301), and a handle (302) is provided on the protective door (301) and fixedly connected thereto. The protective door (301) is rotatably connected to it through two folding connectors (303). The top of the protective cabinet (3) is provided with a storage slot (304), and the top of the storage slot (304) is provided with a top cover (305) and sealed thereto. The inner wall of the protective cabinet (3) is provided with two sliding grooves (306) at the bottom.

3. The variable frequency series resonant withstand voltage test device according to claim 1, characterized in that, The mounting assembly (4) is provided with a mounting bracket (401), and the mounting bracket (401) has heat dissipation grooves (402) on two sides and at the bottom. The heat dissipation grooves (402) are provided with a fan (404), and the fan (404) is rotatably connected to the heat dissipation grooves (402) through a rotating shaft (403). The heat dissipation grooves (402) are provided with a plurality of heat dissipation holes (405).

4. The variable frequency series resonant withstand voltage test device according to claim 3, characterized in that, The mounting bracket (401) has threaded slides (406) and sliders (407) fixedly connected to its bottom ends on both sides. The threaded slides (406) and sliders (407) are slidably connected to two slide grooves (306) respectively.

5. The variable frequency series resonant withstand voltage test device according to claim 3, characterized in that, The mounting bracket (401) is provided with a test component (5) which is fixedly connected to it, and the test component (5) is provided with several wiring slots (501) which are fixedly connected to it.

6. The variable frequency series resonant withstand voltage test device according to claim 1, characterized in that, The protective cabinet (3) is provided with a transmission device (6), and the transmission device (6) is provided with a motor (601). The motor (601) is fixedly connected to the outer wall of the protective cabinet (3). The motor (601) is provided with a connecting shaft (602) rotatably connected to it. The other end of the connecting shaft (602) is provided with a screw (603) fixedly connected to it. The screw (603) is rotatably connected to the slide groove (306) and is connected to the threaded slide (406) in a transmission connection.

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