Universal testing device of small transformer

Abstract

The utility model discloses a general testing device for a small-sized transformer, and the key points of the technical scheme are that the general testing device comprises a box body, a testing device body is fixedly installed in the box body, the top surface of the testing device body is provided with a plurality of connecting sleeves, the connecting sleeves are communicated with the interior of the testing device body, and the connecting sleeves are connected with the interior of the testing device body. A wiring pile is arranged in the connecting sleeve in a sleeved mode, the wiring pile is composed of a cylindrical rod part and a disc part, the outer wall face of the cylindrical rod part of the wiring pile is sleeved with a first spring, and the first spring and the connecting sleeve are limited through the disc part of the wiring pile; threads are arranged on the outer wall face of the cylindrical rod part of the connecting sleeve and the outer wall face of the cylindrical rod part of the wiring pile, the outer wall face of the connecting sleeve is in threaded connection with a wiring cap, the wiring pile is arranged, the connecting wire makes contact with the outer wall face of the wiring pile, and after wire connection is generated, the wiring cap can be screwed tightly to press the contact part between the wiring pile and the connecting wire, so that the wiring pile is prevented from being damaged. And a stable electrical connection relationship between the device and the connecting line is ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of transformer testing devices, specifically to a general testing device for small transformers. Background Technology

[0002] A miniature transformer coil is a type of coil used in small transformers. It typically consists of one or more windings and can transfer electrical energy and generate a magnetic field. Miniature transformer coils are usually made of materials such as copper or aluminum wire. Depending on the application and requirements, the shape, size, number of turns, and other parameters of the coil may vary. Testing the miniature transformer coil can detect problems such as short circuits and open circuits, ensuring the transformer can function properly. Furthermore, the test results can serve as a standard for evaluating product quality, improving product reliability and stability.

[0003] A small transformer coil testing device with publication number CN221686607U exhibits the following defects during use:

[0004] This utility model, through the design of a side plate, a fixed block, a lead screw, a moving block, and a movable guide block, allows the movable guide block to move downwards or upwards by rotating the lead screw through a threaded transmission with the moving block. This facilitates the fixing of both ends of the coil, making subsequent testing easier and preventing the coil from moving or deforming during the test, thus ensuring the accuracy and reliability of the test results and improving testing efficiency. However, in actual use, even after the wiring caps are installed, parts of the transformer and testing device's wiring terminals are still partially exposed, which is highly susceptible to breakage and damage under external force. Furthermore, accidental contact after the road is opened can easily lead to electric shock. Therefore, we propose a universal testing device for small transformers. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a universal testing device for small transformers. It solves the problem that in actual use, after the wiring caps are installed, the wiring terminals of the transformer and the testing device are still partially exposed to the outside, which is very likely to break and be damaged after being subjected to external forces. At the same time, accidental contact after the road is opened can easily cause electric shock.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A general-purpose testing device for small transformers includes a housing. A testing device body is fixedly installed inside the housing. The top surface of the testing device body has several connecting sleeves, which communicate with the interior of the testing device body. A terminal block is fitted inside each connecting sleeve. Each terminal block consists of a cylindrical rod portion and a disc portion. A first spring is fitted onto the outer wall of the cylindrical rod portion of the terminal block. The first spring is limited by the disc portion of the terminal block and the connecting sleeves. Both the connecting sleeves and the outer walls of the cylindrical rod portions of the terminal blocks are threaded. A terminal cap is threaded onto the outer wall of the connecting sleeve.

[0008] Preferably, the cylindrical rod portion of the terminal block has a snap-fit ​​groove on its outer wall, and a first fixing block is fitted inside the housing, the first fixing block being located on one side of the test device body.

[0009] Preferably, the top surface of the first fixing block is provided with a first storage groove, the inside of the first storage groove is provided with threads, the inside of the first storage groove is connected to a first top cover, and the inside of the first top cover is engaged with a storage post.

[0010] Preferably, a plurality of partition rings are fixedly installed on the outer wall of the storage pile, and a second storage groove is provided on the top surface of the first fixing block.

[0011] Preferably, a second fixing block is fixedly installed on the top surface of the first fixing block. Two through holes are opened on one side of the second fixing block. A sliding block is provided on one side of the second fixing block. Two sliding rods are fixedly installed on one side of the sliding block. Each sliding rod consists of a cylindrical rod and a disc portion. The sliding block is engaged with one side of the second fixing block through the two through holes and the two sliding rods. A second spring is sleeved on the outer wall of the cylindrical rod portion of the sliding rod. The second spring is limited by the disc portion of the sliding rod and the through holes on one side of the second fixing block. A limit ring is fixedly installed on the outer wall of the cylindrical rod portion of the sliding rod. A second top cover is provided inside the second storage groove. The second top cover and the second storage groove are connected by a hinge.

[0012] Preferably, the top surface of the box is provided with a box cover, the box and the box cover are connected together by a hinge, a fixing frame is fixedly installed inside the box cover, and two fixing seats are fixedly installed on the bottom surface of the box.

[0013] In summary, the present invention has the following main advantages:

[0014] 1. By setting up terminal blocks, on the one hand, they can cooperate with terminal caps, and the connecting wires can contact the outer wall of the terminal blocks to form an electrical connection. After the connection is established, the terminal caps can be tightened to press the contact part between the terminal blocks and the connecting wires, ensuring a stable electrical connection between the device and the connecting wires. On the other hand, when the device is not in use, the terminal blocks can be pressed into the connecting sleeve, and the threads of the terminal caps and the outer wall of the connecting sleeves can be threaded together, protecting the terminal blocks from breakage or other special situations caused by external forces.

[0015] 2. By setting up storage posts, the connecting wires of the device can be stored. When not in use, the connecting wires can be stored together, avoiding the loss of connecting wires and the device when stored separately. The design of the dividing rings allows different wires to be stored separately, making it easier for staff to find the required connecting wires when pulling out the storage posts, thus making the device more convenient to use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the first fixing block structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the second fixing block structure of this utility model.

[0020] Reference numerals in the attached drawings: 1. Box body; 2. Test device body; 3. Connecting sleeve; 4. Terminal post; 5. First spring; 6. Terminal cap; 7. Snap-fit ​​groove; 8. First fixing block; 9. First storage slot; 10. First top cover; 11. Storage post; 12. Separating ring; 13. Second storage slot; 14. Second fixing block; 15. Sliding block; 16. Sliding rod; 17. Second spring; 18. Second top cover; 19. Limiting ring; 20. Box cover; 21. Fixing frame; 22. Fixing base. Detailed Implementation

[0021] 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.

[0022] refer to Figures 1-4A general-purpose testing device for small transformers includes a housing 1. A testing device body 2 is fixedly installed inside the housing 1. The top surface of the testing device body 2 has several connecting sleeves 3, which communicate with the interior of the testing device body 2. A terminal block 4 is fitted inside the connecting sleeve 3. The terminal block 4 consists of a cylindrical rod and a disc. The design of the terminal block 4 allows it to cooperate with a terminal cap 6. After the connecting wire contacts the outer wall of the terminal block 4, a wire connection is established. Tightening the terminal cap 6 then presses the contact portion between the terminal block 4 and the connecting wire, ensuring... The device and the connecting line have a stable electrical connection. On the other hand, when the device is not in use, the terminal 4 can be pressed into the connecting sleeve 3, and the terminal cap 6 and the thread on the outer wall of the connecting sleeve 3 are connected together. The terminal 4 is protected from breakage and other special situations when subjected to external force. The outer wall of the cylindrical rod part of the terminal 4 is fitted with a first spring 5. The first spring 5 is limited by the disc part of the terminal 4 and the connecting sleeve 3. The outer wall of the cylindrical rod part of the connecting sleeve 3 and the terminal 4 are both threaded. The outer wall of the connecting sleeve 3 is threaded with the terminal cap 6.

[0023] The cylindrical rod of the terminal block 4 has a snap-fit ​​groove 7 on its outer wall. This groove strengthens the stability between the cylindrical part of the terminal block 4 and the connecting wire, preventing the connecting wire from coming loose and causing a break in the circuit, thus avoiding unnecessary safety hazards. A first fixing block 8 is housed inside the housing 1, located on one side of the test device body 2. A first storage groove 9 is formed on the top surface of the first fixing block 8, with threads inside. A first top cover 10 is threaded into the first storage groove 9, and a storage post 11 is snapped into the inside of the first top cover 10. The storage post 11 allows for the storage of the device's connecting wires, enabling complete storage when not in use and preventing... In case of loss due to separate storage of connecting wires and devices, several dividing rings 12 are fixedly installed on the outer wall of the storage post 11. The design of the dividing rings 12 allows for separate storage of different wiring, enabling staff to quickly locate the required connecting wires when pulling out the storage post 11, thus making the device more convenient to use. A second storage groove 13 is provided on the top surface of the first fixing block 8, and a second fixing block 14 is fixedly installed on the top surface of the first fixing block 8. Two through holes are provided on one side of the second fixing block 14, and a sliding block 15 is provided on one side of the second fixing block 14. Two sliding rods 16 are fixedly installed on one side of the sliding block 15. Each sliding rod 16 consists of a cylindrical rod and a disc. The sliding block 15 passes through one side of the second fixing block 14. Two through holes and two sliding rods 16 are engaged with one side of the second fixed block 14. The sliding block 15, when in the pop-out state, can limit the second top cover 18 located on the bottom surface, allowing the second top cover 18 to protect the workpiece stored inside the second storage slot 13. When the workpiece needs to be retrieved, the sliding block 15 can be pressed, causing it to retract and release the limitation on the second top cover 18, facilitating easy opening and closing. After retrieval, the external force is released, causing the sliding block 15 to return to its original position under the elastic force of the second spring 17, allowing it to continue limiting the second top cover 18. The cylindrical rod portion of the sliding rod 16 is fitted with the second spring 17. 17 is limited by the through hole opened on one side of the disc part of the sliding rod 16 and the second fixed block 14. The outer wall of the cylindrical part of the sliding rod 16 is fixedly installed with a limit ring 19. The second storage groove 13 is provided with a second top cover 18. The second top cover 18 and the second storage groove 13 are connected by a hinge. The top surface of the box 1 is provided with a box cover 20. The box 1 and the box cover 20 are connected together by a hinge. The box cover 20 is fixedly installed with a fixed frame 21 inside. Through the design of the fixed frame 21, the tools that need to be used can be temporarily placed, so that the tools needed can be retrieved at any time when installing the device and the transformer, making the use of the device more convenient. Two fixed seats 22 are fixedly installed on the bottom surface of the box 1.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A universal testing device for small transformers, comprising a housing (1), characterized in that, The test device body (2) is fixedly installed inside the housing (1). The top surface of the test device body (2) has several connecting sleeves (3). The connecting sleeves (3) are connected to the inside of the test device body (2). A terminal block (4) is fitted inside the connecting sleeve (3). The terminal block (4) is composed of a cylindrical rod part and a disc part. A first spring (5) is fitted on the outer wall of the cylindrical rod part of the terminal block (4). The first spring (5) is limited by the disc part of the terminal block (4) and the connecting sleeve (3). The outer wall of the cylindrical rod part of the connecting sleeve (3) and the terminal block (4) are both provided with threads. A terminal cap (6) is threaded to the outer wall of the connecting sleeve (3).

2. The universal testing device for a small transformer according to claim 1, characterized in that, The cylindrical rod portion of the terminal block (4) has a snap-fit ​​groove (7) on its outer wall. The box (1) is fitted with a first fixing block (8), which is located on one side of the test device body (2).

3. The universal testing device for a small transformer according to claim 2, characterized in that, The top surface of the first fixing block (8) is provided with a first storage groove (9), the inside of the first storage groove (9) is provided with threads, the inside of the first storage groove (9) is connected to a first top cover (10), and the inside of the first top cover (10) is engaged with a storage post (11).

4. The universal testing device for a small transformer according to claim 3, characterized in that, The outer wall of the storage pile (11) is fixedly installed with several partition rings (12), and the top surface of the first fixing block (8) is provided with a second storage groove (13).

5. A universal testing device for a small transformer according to claim 4, characterized in that, A second fixing block (14) is fixedly installed on the top surface of the first fixing block (8). Two through holes are opened on one side of the second fixing block (14). A sliding block (15) is provided on one side of the second fixing block (14). Two sliding rods (16) are fixedly installed on one side of the sliding block (15). The sliding rods (16) are composed of a cylindrical rod and a disc. The sliding block (15) is engaged with the second fixing block (8) through the two through holes opened on one side of the second fixing block (14) and the two sliding rods (16). On one side of the fixed block (14), a second spring (17) is sleeved on the outer wall of the cylindrical rod portion of the sliding rod (16). The second spring (17) is limited by the through hole opened on one side of the disc portion of the sliding rod (16) and the second fixed block (14). A limit ring (19) is fixedly installed on the outer wall of the cylindrical rod portion of the sliding rod (16). A second top cover (18) is provided inside the second storage groove (13). The second top cover (18) and the second storage groove (13) are connected by a hinge.

6. The universal testing device for a small transformer according to claim 1, characterized in that, The top surface of the box (1) is provided with a box cover (20), and the box (1) and the box cover (20) are connected together by a hinge. A fixing frame (21) is fixedly installed inside the box cover (20), and two fixing seats (22) are fixedly installed on the bottom surface of the box (1).

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