CN218298424U

CN218298424U - Power transformer magnetic core withstand voltage test fixture

Info

Publication number: CN218298424U
Application number: CN202221846470.6U
Authority: CN
Inventors: 汪朝强; 严晓明; 许铭杰; 张霞萍; 吴振杰; 邓惠峰
Original assignee: Haining Kangming Electronic Co ltd
Current assignee: Haining Kangming Electronic Co ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2023-01-13
Anticipated expiration: 2032-07-18

Abstract

The utility model relates to the technical field of magnetic core withstand voltage test, and discloses a power transformer magnetic core withstand voltage test fixture, which comprises a workbench, wherein a support plate is fixedly connected to one side of the upper end surface of the workbench, and a limiting mechanism is arranged at one end of the support plate; limiting mechanism is including the shifting boom, the tooth, the shifting collar, a spring, fender ring and arm-tie, the shifting collar runs through the inside in the backup pad through the bearing, the tooth sets up respectively in the inside of shifting collar and the outside of shifting boom, and correspond each other between the inside of shifting collar and the outside tooth of shifting boom, fender ring fixed connection is in the surface lower extreme position of shifting boom, the spring cup joints in the outside of shifting boom, arm-tie fixed connection is at the up end of shifting boom, the lower terminal surface fixedly connected with point awl of shifting boom, realized limiting the position of shifting boom, can stabilize the pressure to the magnetic core, can improve staff's operating efficiency greatly, easy operation is stable.

Description

Power transformer magnetic core withstand voltage test fixture

Technical Field

The utility model relates to a magnetic core withstand voltage test technical field specifically is a power transformer magnetic core withstand voltage test tool.

Background

The magnetic core is a magnetic metal oxide composed of various iron oxide mixtures, is used in electronic components such as inductors and transformers, and has the function of isolating or filtering pulse interference of power supply connecting wires. The withstand voltage is an important parameter of the magnetic core, is an important index for measuring the anti-interference capability of the magnetic core, and needs to be subjected to withstand voltage test before the magnetic core is produced and enters the market;

the existing power transformer magnetic core voltage withstanding test fixture can be difficult to quickly enable the magnetic core limiting position to correspond to a pressurizing mechanism in the using process, the operation can not be fast, the stability of the pressure is not simple enough, and the test efficiency of the magnetic core can not be effectively improved.

SUMMERY OF THE UTILITY MODEL

To current problem, the utility model provides a power transformer magnetic core withstand voltage test fixture can the effectual problem of proposing in the solution background art.

In order to solve the above problem, the utility model adopts the following technical scheme:

a power transformer magnetic core withstand voltage test fixture comprises a workbench, wherein a supporting plate is fixedly connected to one side of the upper end face of the workbench, and a limiting mechanism is arranged at one end of the supporting plate;

the limiting mechanism comprises a moving arm, teeth, a moving sleeve, a spring, a retaining ring and a pulling plate, wherein the moving sleeve penetrates through the inside of the supporting plate through a bearing, the teeth are respectively arranged in the inside of the moving sleeve and the outside of the moving arm, the teeth in the inside of the moving sleeve and the outside of the moving arm correspond to each other, the retaining ring is fixedly connected to the lower end of the outer surface of the moving arm, the spring is sleeved on the outside of the moving arm, the pulling plate is fixedly connected to the upper end face of the moving arm, and a pointed cone is fixedly connected to the lower end face of the moving arm.

As a further aspect of the present invention: the up end intermediate position of workstation is provided with the insulation board, and the lower terminal surface intermediate position fixedly connected with spliced pole of insulation board rotates the inside of pegging graft at the workstation.

As a further aspect of the present invention: the upper end face of the insulating plate is fixedly connected with a first conducting block and a second conducting block, a test slot is formed in the upper end positions of the interiors of the first conducting block and the second conducting block, the first conducting block corresponds to the test slot in the second conducting block, and a gap exists between the first conducting block and the second conducting block.

As the utility model discloses further scheme again: and conductive connecting pieces are arranged at the two ends of the first conductive block and the second conductive block.

As a further aspect of the present invention: the outer fixed surface of insulation board is connected with the profile tooth, and the position that the up end of workstation is close to the insulation board is provided with the buckle, is connected through the jump ring between buckle and the workstation, and the buckle contacts with between the profile tooth.

As a further aspect of the present invention: the teeth inside the moving sleeve and outside the moving arm are partially arranged.

Compared with the prior art, the beneficial effects of the utility model are that: the detection groove that the staff can be as required when detecting rotates the insulation board, the insulation board passes through the spliced pole and rotates, later the buckle can be automatic under the effect of jump ring with the buckle tooth lock joint, just can fix the insulation board, later just can be located the taper with the test groove of needs under, prepare for the detection of magnetic core, the position to the test groove that can be swift is adjusted, can improve the detection efficiency to the magnetic core, test the magnetic core through the taper and need carry out position limit with the travelling arm, the rotatable removal cover of staff makes its inside tooth and the outside tooth of travelling arm carry out the meshing contact, and then just realized prescribing a limit to the position of travelling arm, can stabilize the pressure to the magnetic core, can improve staff's operating efficiency greatly, easy operation is stable.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the combination of a first conductive block and a second conductive block of the present invention;

FIG. 3 is a schematic view of the combination of the insulating plate and the buckle plate of the present invention;

FIG. 4 is a schematic view of the support plate and the moving arm of the present invention;

fig. 5 is a schematic view of the moving arm and teeth of the present invention.

In the figure: 1. a work table; 2. a support plate; 3. a moving arm; 4. teeth; 5. a baffle ring; 6. a spring; 7. a pointed cone; 8. connecting columns; 9. an insulating plate; 10. buckling the plate; 11. a first conductive block; 12. a second conductive block; 13. a test slot; 14. a conductive connection member; 15. buckling teeth; 16. pulling a plate; 17. and (4) moving the sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the present embodiment provides a power transformer magnetic core withstand voltage test fixture, which includes a workbench 1, a support plate 2 is fixedly connected to one side of an upper end surface of the workbench 1, and a limiting mechanism is disposed at one end of the support plate 2;

limiting mechanism is including moving arm 3, tooth 4, remove cover 17, spring 6, fender ring 5 and arm-tie 16, it runs through in the inside of backup pad 2 through the bearing to remove cover 17, tooth 4 sets up the inside at removing cover 17 and the outside of moving arm 3 respectively, and correspond each other between the inside of removing cover 17 and the tooth 4 of moving arm 3 outside, keep off ring 5 fixed connection in the surface lower extreme position of moving arm 3, spring 6 cup joints the outside at moving

arm

3, 2 arm-tie 16 fixed connection is at the up end of moving arm 3, the lower terminal surface fixed connection of moving arm 3 has pointed cone 7, the inside of removing cover 17 and the tooth 4 of moving arm 3 outside are local setting.

An insulating plate 9 is arranged in the middle of the upper end face of the workbench 1, a connecting column 8 is fixedly connected in the middle of the lower end face of the insulating plate 9, and the connecting column 8 is rotatably inserted in the workbench 1; the upper end face of the insulating plate 9 is fixedly connected with a first conducting block 11 and a second conducting block 12, the upper ends of the interiors of the first conducting block 11 and the second conducting block 12 are provided with test slots 13, the first conducting block 11 corresponds to the test slots 13 on the second conducting block 12, and a gap exists between the first conducting block 11 and the second conducting block 12; the two ends of the first conductive block 11 and the second conductive block 12 are provided with conductive connecting pieces 14; the outer surface of the insulating plate 9 is fixedly connected with buckle teeth 15, a buckle plate 10 is arranged at a position, close to the insulating plate 9, of the upper end face of the workbench 1, the buckle plate 10 is connected with the workbench 1 through a clamp spring, and the buckle plate 10 is in contact with the buckle teeth 15.

The utility model discloses a theory of operation is: when the power transformer magnetic core pressure testing device is used, firstly, a worker can place the power transformer magnetic core in a proper test groove according to the required size of the magnetic core, then the moving sleeve 17 is rotated, then teeth 4 on the moving arm 3 can be separated from teeth 4 in the moving sleeve 17, then the moving arm 3 can move downwards under the action of the spring 6 to pressurize the magnetic core, an insulation resistance tester is utilized to connect a conductive connecting piece 14, and a voltage withstanding test can be carried out on the magnetic core through a first conductive block 11 and a second conductive block 12, the worker can rotate the insulation plate 9 according to the required detection groove 13 during detection, the insulation plate 9 rotates through a connecting column 8, then the buckle plate 10 can be automatically buckled with the buckle teeth 15 under the action of the snap spring, the insulation plate 9 can be fixed, then the required test groove 13 can be located under the pointed cone 7, preparation is made for detection of the magnetic core, the position of the test groove 13 can be quickly adjusted, the detection efficiency of the magnetic core can be improved, the worker can stably operate the magnetic core, the movable arm 3 can be in a stable and the external magnetic core pressure of the movable arm can be stably operated.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and furthermore, the terms "comprise", "include", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A power transformer magnetic core withstand voltage test fixture comprises a workbench (1), and is characterized in that a supporting plate (2) is fixedly connected to one side of the upper end face of the workbench (1), and a limiting mechanism is arranged at one end of the supporting plate (2);

limiting mechanism is including moving arm (3), tooth (4), removal cover (17), spring (6), fender ring (5) and arm-tie (16), remove cover (17) and run through the inside in backup pad (2) through the bearing, tooth (4) set up respectively in the inside of removing cover (17) and the outside of moving arm (3), and correspond each other between tooth (4) of the inside of removing cover (17) and moving arm (3) outside, keep off ring (5) fixed connection in the surface lower extreme position of moving arm (3), spring (6) cup joint the outside at moving arm (3), arm-tie (16) fixed connection is in the up end of moving arm (3), the lower extreme face fixedly connected with awl (7) of moving arm (3).

2. The jig for testing the withstand voltage of the magnetic core of the power transformer according to claim 1, wherein an insulating plate (9) is disposed in the middle of the upper end surface of the workbench (1), a connecting column (8) is fixedly connected to the middle of the lower end surface of the insulating plate (9), and the connecting column (8) is rotatably inserted into the workbench (1).

3. The withstand voltage test jig for the magnetic core of the power transformer according to claim 2, wherein a first conductive block (11) and a second conductive block (12) are fixedly connected to the upper end face of the insulating plate (9), a test slot (13) is formed in the upper ends of the interiors of the first conductive block (11) and the second conductive block (12), the first conductive block (11) and the test slot (13) in the second conductive block (12) correspond to each other, and a gap exists between the first conductive block (11) and the second conductive block (12).

4. The jig for testing withstand voltage of a magnetic core of a power transformer according to claim 3, wherein the conductive connecting members (14) are disposed at two ends of the first conductive block (11) and the second conductive block (12).

5. The power transformer magnetic core withstand voltage test fixture according to claim 3, characterized in that the outer surface of the insulating plate (9) is fixedly connected with buckle teeth (15), a buckle plate (10) is arranged at a position, close to the insulating plate (9), of the upper end surface of the workbench (1), the buckle plate (10) is connected with the workbench (1) through a clamp spring, and the buckle plate (10) is in contact with the buckle teeth (15).

6. The jig for testing withstand voltage of a magnetic core of a power transformer according to claim 1, wherein the teeth (4) inside the moving sleeve (17) and outside the moving arm (3) are partially disposed.