Quick switching connector for testing mutual inductor
By designing a quick switch connector, using the combination of articulated structure and conductive insulating material, the problem of keeping the test device unchanged in transformer test is solved, and the rapid switching of transformer and circuit switching is realized, which improves work efficiency and ensures operation security.
Patent Information
- Application Number
- CN202411748326.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-01-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the transformer testing process, the test device remains unchanged for a long time, resulting in inconsistent testing and replacing the transformer, which takes a long time and affects working efficiency.
A quick switching connector for transformer testing is designed, including a support part, a switching part, an operating part and a connection part. Through the combination of articulated structure and conductive insulating material, rapid switching and circuit switching are achieved to ensure operational safety and efficiency.
The device allows quick switching to the next while testing one transformer, improving work efficiency and ensuring operational safety and efficiency through a combination of insulation material and electrical conductivity.
Smart Images
Figure CN119246912A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of transformer production, and in particular relates to a quick switching connector for transformer testing. Background Art
[0002] Electrical products such as transformers often need to undergo various tests. During the test process, the test device usually remains unchanged. After one transformer is tested, the next transformer needs to be replaced for testing. Since the test current or voltage of products such as transformers is large, the electrical connection operation often requires high requirements, and naturally requires extra caution and is relatively complicated during the electrical connection operation. Sometimes, the test process of the transformer itself takes a relatively short time, while replacing and connecting the new transformer under test takes longer. Therefore, in order to fully coordinate the operation process, the art hopes to be able to work in parallel with the above two links. Summary of the invention
[0003] The present invention provides a quick switching connector for mutual inductor testing to solve the problems in the above-mentioned background technology.
[0004] The technical problem solved by the present invention is achieved by adopting the following technical solutions: A quick switching connector for transformer testing comprises a supporting part, a switching part, an operating part and a connecting part. The switching part is hinged in the supporting part, the operating part is hinged in the supporting part and connected to the switching part, and the connecting part is located at both sides of the switching part.
[0005] The supporting part includes a lower ear piece, a side ear piece, a limiting rod and an upper ear piece. The lower ear piece is hingedly connected to the switching part. There is a side ear piece on each side above the lower ear piece. The connecting part is installed in the side ear piece. There is also a pair of limiting rods above the side ear pieces. The upper ear piece is provided in the middle above the limiting rod. The operating part is hingedly installed on the upper ear piece. The switching part includes a shaft tube, a mounting shaft, a lower connecting ear piece, a round table, an extension rod, a waist-shaped groove and a lap joint. The mounting shaft extends from both ends of the shaft tube. The mounting shaft hinges the switching part to the lower ear piece. The shaft tube cooperates with the lower ear piece to limit the hinge position of the switching part. The middle part of the shaft tube is connected to the round table upward through the ear piece. The extension rod extends above the round table. The middle part of the extension rod has a waist-shaped groove that runs through the front and back. The operating part is movably connected in the waist-shaped groove. There is a lap joint on each side of the top of the extension rod. The operating part includes a lever, a clamp, a spring and an operating rod. The lower end of the lever is movably connected to the waist-shaped groove. The middle part of the lever is hinged on the upper ear. The clamp is fitted on the extension rod. The clamp is located below the lever. A spring is installed on the extension rod between the clamp and the truncated table. The bottom of the lever has a pin, which is movably inserted in the waist-shaped groove. Both ends of the middle and upper part of the lever extend a hinge shaft, which is hinged on the upper ear. A control rod extends from the top of the lever. The connecting part has a pair of contacts, which include a contact head and an upper connecting ear. The contact head is installed on the side ear. The contact head is located on the inner side of the support part. The upper connecting ear is electrically connected to the transformer to be tested to supply power to the transformer.
[0006] Furthermore, the outer end of the mounting shaft is connected to a lower connecting ear piece, and the lower connecting ear piece is connected outwardly to a cable of the test equipment. This connection part usually does not need to be disassembled unless the test equipment needs to be replaced.
[0007] Furthermore, the lower area of the lever is a fork ear, and the fork ears are sleeved on both sides of the extension rod.
[0008] Furthermore, an operating lever is hingedly installed on the rear side of the lever, and the position of the lever is switched by the operating lever to switch the circuit, further increasing insulation and effectively preventing the operator from electric shock. The bottom of the lever has a hinged ear piece, which is hinged to the hinge shaft and located on the rear side of the upper ear piece. There are round rods on both sides above the hinged ear piece. The round rods toggle the control rod during the movement of the operating lever, thereby toggling the lever to rotate. There is a handle in the middle of the operating lever, and the device is operated by holding the handle.
[0009] Furthermore, of the entire connection device, only the switching part and the connection part are made of materials with good electrical conductivity, and other parts should be made of insulating materials, among which the spring should at least be fully wrapped with insulating materials.
[0010] The beneficial effects of the present invention are: The present invention is used for the final testing link of transformer production. The bottom connecting component of the device is connected to the testing equipment, and the two sides of the middle are respectively provided with two connecting components that can be quickly switched on and off, so that one can perform the test while the other can synchronously and parallelly perform the connection operation of the next product to be tested, which can effectively improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a schematic diagram of the present invention; Figure 2 It is a right side view of the present invention; Figure 3 is an exploded view of the present invention; In the figure: 10. support part, 11. lower ear piece, 12. side ear piece, 13. limit rod, 14. upper ear piece, 20. switching part, 21. shaft cylinder, 22. mounting shaft, 23. lower connecting ear piece, 24. round table, 25. extension rod, 26. waist-shaped groove, 27. lap joint, 30. operating part, 31. lever, 311. articulated shaft, 312. fork ear, 313. pin shaft, 314. control rod, 32. clamp ring, 33. spring, 34. operating rod, 341. articulated ear piece, 342. round rod, 343. handle, 40. connecting part, 41. contact head, 42. upper connecting ear piece. DETAILED DESCRIPTION
[0012] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0013] See also Figure 1-Figure 3 The quick switching connector for transformer testing shown includes a supporting part 10, a switching part 20, an operating part 30 and a connecting part 40. The switching part 20 is hinged in the supporting part 10, the operating part 30 is hinged in the supporting part 10 and connected to the switching part 20, and the connecting part 40 is located on both sides of the switching part 20.
[0014] The supporting portion 10 includes a lower ear piece 11, a side ear piece 12, a limit rod 13 and an upper ear piece 14. The lower ear piece 11 is hingedly provided with a switching portion 20. There is a side ear piece 12 on each side above the lower ear piece 11. A connecting portion 40 is installed in the side ear piece 12. There is also a pair of limit rods 13 above the side ear piece 12. The limit rods 13 limit the movement limit positions on both sides of the operating portion 30. There is an upper ear piece 14 in the middle above the limit rod 13, and the operating portion 30 is hingedly installed on the upper ear piece 14.
[0015] Generally, in order to ensure that the entire connecting device is sealed and insulated, the support part 10 should be a box structure made of insulating material, and the internal components are insulated and covered. For the convenience of description and understanding, this embodiment only shows and describes the parts used for connection and support. Those skilled in the art can easily supplement the support part 10 into a complete insulating box structure according to the description of this embodiment.
[0016] The switching part 20 includes a shaft cylinder 21, a mounting shaft 22, a lower connecting ear piece 23, a truncated cone 24, an extension rod 25, a waist-shaped groove 26 and a lap joint 27. The mounting shafts 22 extend from both ends of the shaft cylinder 21. The mounting shafts 22 hinge the switching part 20 on the lower ear piece 11. The shaft cylinder 21 cooperates with the lower ear piece 11 to limit the hinge position of the switching part 20. The outer end of the mounting shaft 22 is connected to the lower connecting ear piece 23. The lower connecting ear piece 23 is connected to the cable of the test equipment outward. This connection part usually does not need to be disassembled unless the test equipment needs to be replaced. The middle part of the shaft cylinder 21 is connected to the truncated cone 24 upward through the ear piece. The extension rod 25 extends above the truncated cone 24. The middle part of the extension rod 25 has a waist-shaped groove 26 that runs through the front and back. The waist-shaped groove 26 is movably connected to the operating part 30. There is a lap joint 27 on each side of the top of the extension rod 25. The lap joint 27 contacts with a part of the connecting part 40 according to the switching position to transfer current.
[0017] The operating portion 30 includes a lever 31, a clamping ring 32, a spring 33 and an operating rod 34. The lower end of the lever 31 is movably connected to the waist-shaped groove 26. The middle part of the lever 31 is hinged on the upper ear piece 14. The clamping ring 32 is sleeved on the extension rod 25. The clamping ring 32 is located below the lever 31. A spring 33 is installed on the extension rod 25 between the clamping ring 32 and the round table 24. Under the action of the spring 33, the extreme positions on both sides of the lever 31 are compressed, and then the lap joint 27 on the extension rod 25 is pressed against the connecting portion 40. The operating rod 34 is hingedly installed on the rear side of the lever 31. The position of the lever 31 is switched by the operating rod 34 to achieve circuit switching, further increase insulation, and effectively prevent the operator from electric shock. The lower area of the lever 31 is a fork ear 312, which is sleeved on both sides of the extension rod 25. The lever 31 has a pin 313 at the bottom, which is movably inserted in the waist-shaped groove 26. The hinge shaft 311 extends from both ends of the middle and upper part of the lever 31, and the hinge shaft 311 is hinged on the upper ear piece 14. The control rod 314 extends from the top of the lever 31. The bottom of the operating rod 34 has a hinged ear piece 341, which is hinged to the hinge shaft 311 and is located at the rear side of the upper ear piece 14. The upper two sides of the hinged ear piece 341 have round rods 342. The round rods 342 toggle the control rod 314 during the movement of the operating rod 34, thereby toggling the lever 31 to rotate. The middle part of the operating rod 34 has a handle 342, and the handle 342 is held to operate the device.
[0018] The connecting part 40 has a pair, and the connecting part 40 includes a contact head 41 and an upper connecting ear piece 42. The contact head 41 is installed on the side ear piece 12, and the contact head 41 is located inside the support part 10. The upper connecting ear piece 42 is electrically connected to the transformer to be tested to supply power to the transformer.
[0019] In the entire connection device, only the switching part 20 and the connecting part 40 are made of materials with good conductive properties, and other parts should be made of insulating materials, among which the spring 33 should at least be fully wrapped with insulating materials.
[0020] The working principle of the present invention is: Figure 2 In the position shown, the lower connecting lug 23 is connected to the test equipment, and the upper connecting lug 42 on the right is connected to the transformer to be tested (or other electrical equipment), and the product on the right can be tested. At the same time, the upper connecting lug 42 on the left is in a power-off state, and can be operated to connect the next product to be tested. Figure 2In the state, under the action of the spring 33, the lap joint 27 can always press the contact head 41. When it is necessary to switch the circuit, hold the handle 343 and pull the operating rod 34. Usually there is a period of idle travel. After the round rod 342 on one side contacts the control rod 314, continue to pull the handle 343, and the pin 313 at the bottom of the lever 31 compresses the spring 33 through the clamp ring 32. Then the lever 31 and the switching part 20 begin to rotate to the other side. When the switching part 20 rotates past the neutral position, under the action of the spring 33, the switching part 20 will accelerate the rotation and quickly and tightly contact the contact head 41 on the other side to form an electrical connection in a new direction.
[0021] The above embodiments mainly illustrate the quick-switching connector for transformer testing of the present invention. Although only limited embodiments and technical features are described, those skilled in the art should understand that the present invention can be implemented in many other forms without departing from its subject matter and scope. Therefore, the embodiments shown are regarded as illustrative rather than restrictive, and the present invention may cover various modifications and replacements without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims
1. A quick switching connector for transformer testing, comprising a supporting portion (10), a switching portion (20), an operating portion (30) and a connecting portion (40), characterized in that: The switching part (20) is hinged in the supporting part (10), the operating part (30) is hinged in the supporting part (10) and connected to the switching part (20), the connecting part (40) is located at both sides of the switching part (20), the switching part (20) comprises a shaft cylinder (21), a mounting shaft (22), a lower connecting ear piece (23), a round table (24), an extension rod (25), a waist-shaped groove (26) and a lap joint (27), the mounting shaft (22) extending from both ends of the shaft cylinder (21), The switch part (20) is hingedly connected to the lower ear piece (11) by the installation shaft (22). The middle part of the shaft cylinder (21) is connected to the round table (24) upward through the ear piece. An extension rod (25) extends above the round table (24). The middle part of the extension rod (25) has a waist-shaped groove (26) that passes through the front and back. Both sides of the top of the extension rod (25) are respectively provided with a lap joint (27). The operating part (30) includes a lever (31), a clamping ring (32), a spring (33) and an operating rod (34). The lower end of the lever (31) is movably connected to the waist-shaped groove (26), the middle part of the lever (31) is hinged on the upper ear piece (14), the clamping ring (32) is sleeved on the extension rod (25), the clamping ring (32) is located below the lever (31), a spring (33) is installed on the extension rod (25) between the clamping ring (32) and the round table (24), the bottom of the lever (31) is provided with a pin shaft (313), the pin shaft (313) is movably inserted in the waist-shaped groove (26), and the lever (31) Hinge shafts (311) extend from both ends of the middle and upper part of the device, the hinge shafts (311) are hinged on the upper ear piece (14), a control rod (314) extends from the top of the lever (31), the connecting portion (40) has a pair of connecting parts (40), the connecting portion (40) includes a contact head (41) and an upper connecting ear piece (42), the contact head (41) is installed on the side ear piece (12), the contact head (41) is located on the inner side of the support portion (10), and the upper connecting ear piece (42) is electrically connected to the mutual inductor to be tested.
2. The quick-switching connector for transformer testing according to claim 1, characterized in that: The outer end of the installation shaft (22) is connected to a lower connecting ear piece (23), and the lower connecting ear piece (23) is connected outwardly to a cable of a testing device.
3. The quick-switching connector for transformer testing according to claim 1, characterized in that: The lower area of the shifting rod (31) is a fork ear (312), and the fork ear (312) is sleeved on both sides of the extension rod (25).
4. The quick-switching connector for transformer testing according to claim 1, characterized in that: An operating rod (34) is hingedly mounted on the rear side of the lever (31), a hinged ear piece (341) is provided at the bottom of the operating rod (34), the hinged ear piece (341) is hingedly connected to the hinge shaft (311) and is located at the rear side of the upper ear piece (14), round rods (342) are provided on both sides above the hinged ear piece (341), and a handle (342) is provided in the middle of the operating rod (34).
5. The quick-switching connector for transformer testing according to claim 1, characterized in that: The switching part (20) and the connecting part (40) are made of materials with good electrical conductivity, and other parts are made of insulating materials, wherein the spring (33) is fully wrapped with insulating materials.