An auxiliary device for electrical testing

Abstract

This utility model discloses an auxiliary device for electrical testing. The device includes: a housing for accommodating a testing instrument; a wire inlet hole on a first side of the housing for inserting a wire to connect the electrical device under test to the testing instrument; and a clamping mechanism installed in the housing for clamping the wire. This auxiliary device, by using a clamping mechanism to hold and fix the connecting wire between the testing instrument and the electrical device under test, prevents the wire from loosening due to external forces, vibrations, or other factors, thus avoiding intermittent electrical connection problems. This ensures the reliability of the electrical connection, enabling the acquisition of stable and reliable test data and accurate assessment of the performance of the electrical device under test.

Description

Technical Field

[0001] This utility model relates to the field of electrical testing technology, and more specifically, to an auxiliary device for electrical testing. Background Technology

[0002] Electrical testing refers to a series of tests performed on electrical equipment, systems, or components to verify their performance, safety, and reliability. These tests are typically conducted during the design, manufacturing, installation, maintenance, and decommissioning phases of electrical equipment. The purpose of electrical testing is to ensure that electrical equipment conforms to prescribed standards and specifications and can operate safely and effectively under expected operating conditions.

[0003] A search revealed Chinese Patent Publication No. CN219116875U, which discloses a cable collection device for high-voltage electrical testing. The device includes a housing, a switch door, rollers, and an adjustment assembly. Four sets of rollers are fixedly connected to the lower surface of the housing. A switch door is located on the outer surface of the housing, with one side hinged to the other side of the housing. A resistance block is fixedly connected to one side of the switch door, and a groove is formed on its outer surface. An adjustment assembly is located on the outer surface of the housing, comprising a fixing component, a fixing column, a first roller, a cylinder, a torsion spring, a sleeve, a connector, a fixing rod, a fixing frame, and a second roller. This prior art, through its internal adjustment assembly, can prevent cable tangling and is applicable to cables of different sizes, demonstrating good applicability.

[0004] However, the inventors of the utility model have found the following shortcomings in the aforementioned technologies: the existing technology makes it difficult to clamp and fix the wires. If clamping and fixing are not possible, the electrical connection will be intermittent, causing fluctuations in the measured parameters such as current, voltage, and resistance during the test, making it impossible to obtain stable and reliable data, and affecting the accurate judgment of the equipment performance.

[0005] Therefore, there is an urgent need for an auxiliary electrical testing device that can effectively clamp and fix the conductors, thereby ensuring stable and reliable test data. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide an auxiliary device for electrical testing, which aims to solve the problems existing in the prior art.

[0007] According to this utility model, an auxiliary device for electrical testing is provided, comprising:

[0008] A housing for accommodating testing instruments. A wire inlet is provided on the first side of the housing for inserting wires. The wires are used to connect the electrical equipment to be tested to the testing instruments.

[0009] A clamping mechanism, installed in the housing, is used to clamp the wire;

[0010] The clamping mechanism includes:

[0011] The card holder includes a body block, a locking block, and a locking spring. The body block is disposed on the housing. A locking block is provided on each of the opposite sides of the body block. Each locking block is slidably disposed on the housing. A locking spring is provided between each locking block and the body block. Each locking spring is pressed between the body block and the corresponding locking block.

[0012] The lower latch is slidably mounted on the housing and can slide up and down relative to the housing. The lower latch is fastened to the two locking blocks, and a clamping space is formed between the main body block and the lower latch for clamping the wire.

[0013] Preferably, the locking block includes a first plate and a second plate that are perpendicularly connected to each other, the free end of the first plate is provided with a pressing plate, and the free end of the second plate is provided with a first locking connector;

[0014] The lower buckle frame includes a crossbeam and two second snap connectors connected to both ends of the crossbeam. The second snap connectors cooperate with the first snap connectors to snap together to form a snap-fit ​​structure.

[0015] Preferably, the main body block has multiple slots, and the lower buckle has a pressing block corresponding to each slot. The slot and the corresponding pressing block are used to clamp a wire.

[0016] Preferably, the slot is arc-shaped, and each of the inlet holes is provided with an inlet tube, with the slot and the corresponding inlet tube being coaxially arranged.

[0017] Preferably, a plurality of return springs are provided between the card holder and the lower buckle frame.

[0018] Preferably, the upper part of the housing has a mounting hole, the upper part of the lower buckle is exposed to the mounting hole, and can slide up and down relative to the mounting hole;

[0019] The housing has sliding holes on two opposite sides, and each locking block extends out of the sliding hole and can slide relative to the sliding hole.

[0020] Preferably, a bellows is provided on one side of the upper part of the box body, and the bellows is connected to the box body.

[0021] Preferably, the air box is equipped with a cooling fan, and a ventilation pipe is provided between the box body and the air box, and the box body and the air box are connected through the ventilation pipe.

[0022] Preferably, the upper part of the bellows has an air inlet, and the upper part of the box body has an air outlet.

[0023] Preferably, the air inlet is located diagonally above the air outlet.

[0024] The auxiliary device for electrical testing in this embodiment of the invention uses a clamping mechanism to hold and fix the connecting wires between the testing instrument and the electrical equipment under test. This prevents the wires from loosening due to external forces, vibrations, or other factors, thus avoiding intermittent electrical connections and ensuring the reliability of the electrical connection. This allows for the acquisition of stable and reliable test data, enabling accurate judgment of the performance of the electrical equipment under test. Furthermore, the well-designed heat dissipation system ensures that the testing instrument operates at a stable temperature during testing, preventing excessively high temperatures from distorting the measured parameters such as resistance, capacitance, and inductance of the electrical equipment under test. This also ensures stable and reliable test data and effectively guarantees the accuracy of the test results. Attached Figure Description

[0025] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings.

[0026] Figure 1-2 A three-dimensional structural schematic diagram of an auxiliary device for electrical testing according to an embodiment of the present invention is shown from different perspectives.

[0027] Figure 3-4 Cross-sectional views of an auxiliary device for electrical testing according to embodiments of the present invention are shown from different perspectives.

[0028] In the diagram: 1. Housing 1, Inlet pipe 11, Outlet 12, Clamping mechanism 2, Card seat 21, Body block 211, Card slot 2111, Locking block 212, Pressing plate 2121, First card connector 2122, Locking spring 213, Lower buckle 22, Crossbeam 221, Lower pressing block 2211, Second card connector 222, Return spring 23, Air box 3, Inlet 31, Ventilation pipe 4, Cooling fan 5. Detailed Implementation

[0029] Various embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. In the various drawings, the same elements are indicated by the same or similar reference numerals. For clarity, the various parts in the drawings are not drawn to scale.

[0030] like Figures 1 to 4As shown, this utility model provides an auxiliary device for electrical testing, which includes a housing 1 and a clamping mechanism 2. The housing 1 is used to house the testing instrument, and a wire inlet hole is provided on its first side for inserting wires to connect the electrical equipment to be tested to the testing instrument. The clamping mechanism 2 is installed in the housing 1 and is used to clamp the wires.

[0031] In this embodiment, the testing instrument is a device used to detect the current and voltage of the electrical equipment under test, which is existing technology and will not be described in detail.

[0032] The clamping mechanism 2 includes a card holder 21 and a lower clip 22 that is clipped onto the card holder 21.

[0033] The card holder 21 includes a main body block 211, locking blocks 212, and locking springs 213. The main body block 211 is located on the housing 1. A locking block 212 is located on each opposite side of the main body block 211. Each locking block 212 is slidably mounted on the housing 1. A locking spring 213 is located between each locking block 212 and the main body block 211, and each locking spring 213 presses against the main body block 211 and its corresponding locking block 212. A lower latch 22 is slidably mounted on the housing 1 and can slide up and down relative to the housing 1. The lower latch 22 engages with the two locking blocks 212, forming a clamping space between the main body block 211 and the lower latch 22 for clamping the wires.

[0034] In one embodiment, there are two locking springs 213 between each locking block 212 and the body block 211. One end of the locking spring 213 is connected to the body block 211 and the other end is connected to the locking block 212.

[0035] In an alternative embodiment, one end of the locking spring 213 is connected to the body block 211, and the other end is pressed against the locking block 212.

[0036] The locking block 212 includes a first plate and a second plate that are perpendicularly connected to each other. The free end of the first plate is provided with a pressing plate 2121, and the free end of the second plate is provided with a first snap-fit ​​connector 2122. The lower buckle frame 22 includes a crossbeam 221 and two second snap-fit ​​connectors 222 connected to both ends of the crossbeam 221. The second snap-fit ​​connectors 222 and the first snap-fit ​​connectors 2122 are used together to snap together to form a snap-fit ​​structure.

[0037] The main body block 211 has multiple slots 2111, and the lower bracket 22 has a corresponding pressing block 2211 for each slot 2111. The pressing block 2211 is located at the bottom of the crossbeam 221. The slot 2111 and the corresponding pressing block 2211 are used to clamp a wire. The pressing block 2211 is located at the bottom of the crossbeam 221 of the lower bracket 22 and directly above the slot 2111. Through the cooperation of the pressing block 2211 and the slot 2111, the wire can be clamped and fixed to prevent the wire from shaking.

[0038] The slot 2111 is arc-shaped, and each inlet hole is equipped with an inlet tube 11, which extends out of the housing 1. The slot 2111 and the corresponding inlet tube 11 are coaxially arranged. Multiple return springs 23 are provided between the card holder 21 and the lower buckle 22. The lower end of the return spring 23 is connected to the main body block 211. When the lower buckle 22 is pressed down, the upper end of the return spring 23 is pressed against the lower buckle 22.

[0039] In this embodiment, there are four slots 2111 and four inlet pipes 11. The four slots 2111 are opened on the top surface of the main body block 211 and arranged in an array along the length of the main body block 211. The slots 2111 are nearly semi-circular. There are three reset springs 23, which are located between two adjacent slots 2111.

[0040] The clamping mechanism 2 is ingeniously and reasonably designed, enabling rapid clamping and disassembly of multiple wires with stable clamping, thereby improving testing efficiency and stability.

[0041] A bellows 3 is provided on the upper side of the housing 1, and the bellows 3 is connected to the housing 1. In this embodiment, the housing 1 and the bellows 3 are arranged in a stepped manner.

[0042] The air box 3 is equipped with a cooling fan 5, and a ventilation pipe 4 is provided between the box body 1 and the air box 3. The box body 1 and the air box 3 are connected through the ventilation pipe 4.

[0043] The upper part of the air box 3 has an air inlet 31, and the upper part of the box body 1 has an air outlet 12. In this embodiment, both the air inlet 31 and the air outlet include multiple strip-shaped holes extending along the length of the air box 3. The air inlet 31 and the air outlet 12 are arranged adjacent to each other, with the air inlet located diagonally above the air outlet.

[0044] The air inlet 31, the inner cavity of the air box 3, the ventilation pipe 4, the inner cavity of the housing 1, and the air outlet 12 are sequentially connected to form a heat dissipation air duct. The cooling fan 5 is located in the inner cavity of the air box 3 and together with the heat dissipation air duct, it forms a heat dissipation system.

[0045] When ventilation and heat dissipation are performed, the cooling fan 5 is turned on. External air is drawn into the air box 3 through the air inlet and enters the housing 1 from the air box 3 to dissipate heat from the testing instrument. The hot air is blown out from the air outlet 12, thus forming a circulating heat dissipation system. This system promptly removes heat from the testing instrument during the testing process, ensuring that the testing instrument operates in a suitable temperature environment. This prevents excessively high temperatures from causing distortion in the measured parameters such as resistance, capacitance, and inductance of the electrical equipment under test, thereby obtaining stable and reliable test data and effectively ensuring the accuracy of the test results.

[0046] When using the electrical testing auxiliary device in this embodiment, the following steps can be followed:

[0047] 1. Pass the connecting wire between the electrical equipment to be tested and the testing instrument through the inlet pipe 11 and press it into the slot 2111;

[0048] 2. Press down the lower buckle 22. Under the action of the squeezing force, the locking spring 213 is compressed and the locking block 212 retracts, so that the second snap-fit ​​connector 222 is pressed into the first snap-fit ​​connector 2122. The locking spring 213 squeezes the first snap-fit ​​connector 2122 to reset, thereby realizing the snap-fit ​​of the first snap-fit ​​connector 2122 and the second snap-fit ​​connector 222, thereby achieving the clamping and fixing of the wire.

[0049] 3. Connect the electrical equipment to be tested to the testing instrument using wires, and begin testing the electrical equipment;

[0050] 4. During the testing process, turn on the cooling fan 5. External air enters the air box 3 through the air inlet and then enters the housing 1 through the air box 3 to dissipate heat from the testing instrument. The hot air is blown out from the air outlet 12.

[0051] 5. After the test is completed, press the two locking blocks 212 inward to separate the second locking connector 222 from the first locking connector 2122. Under the action of the return spring 23, the lower locking frame 22 springs up, or the lower locking frame 22 can be manually lifted up to separate the card holder 21 from the lower locking frame 22. Then disconnect the wire.

[0052] The auxiliary device for electrical testing in this application uses a clamping mechanism 2 to clamp and fix the connecting wires between the testing instrument and the electrical equipment under test. This prevents the wires from loosening due to external forces, vibrations, or other factors, thus avoiding intermittent electrical connections and ensuring the reliability of the electrical connection. This allows for the acquisition of stable and reliable test data, enabling accurate judgment of the performance of the electrical equipment under test. Furthermore, a reasonably designed heat dissipation system ensures that the testing instrument operates in a stable temperature environment during testing, preventing excessively high temperatures from distorting the measured parameters such as resistance, capacitance, and inductance of the electrical equipment under test. This also ensures stable and reliable test data and effectively guarantees the accuracy of the test results.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An auxiliary device for electrical tests, characterized in that, include: A housing for accommodating testing instruments. A wire inlet is provided on the first side of the housing for inserting wires. The wires are used to connect the electrical equipment to be tested to the testing instruments. A clamping mechanism, installed in the housing, is used to clamp the wire; The clamping mechanism includes: The card holder includes a body block, a locking block, and a locking spring. The body block is disposed on the housing. A locking block is provided on each of the opposite sides of the body block. Each locking block is slidably disposed on the housing. A locking spring is provided between each locking block and the body block. Each locking spring is pressed between the body block and the corresponding locking block. The lower latch is slidably mounted on the housing and can slide up and down relative to the housing. The lower latch is fastened to the two locking blocks, and a clamping space is formed between the main body block and the lower latch for clamping the wire.

2. The auxiliary device for electrical testing according to claim 1, characterized in that, The locking block includes a first plate and a second plate that are perpendicularly connected to each other. The free end of the first plate is provided with a pressing plate, and the free end of the second plate is provided with a first locking connector. The lower buckle frame includes a crossbeam and two second snap connectors connected to both ends of the crossbeam. The second snap connectors cooperate with the first snap connectors to snap together to form a snap-fit ​​structure.

3. The auxiliary device for electrical testing according to claim 1, characterized in that, The main body block has multiple slots, and the lower buckle has a pressing block corresponding to each slot. The slot and the corresponding pressing block are used to clamp a wire.

4. The auxiliary device for electrical testing according to claim 3, characterized in that, The slot is arc-shaped, and each of the inlet holes is provided with an inlet tube. The slot and the corresponding inlet tube are coaxially arranged.

5. The auxiliary device for electrical testing according to claim 1, characterized in that, Multiple return springs are provided between the card holder and the lower buckle frame.

6. The auxiliary device for electrical testing according to claim 1, characterized in that, The upper part of the box body is provided with a mounting hole, and the upper part of the lower buckle is exposed to the mounting hole and can slide up and down relative to the mounting hole; The housing has sliding holes on two opposite sides, and each locking block extends out of the sliding hole and can slide relative to the sliding hole.

7. The auxiliary device for electrical testing according to claim 1, characterized in that, A bellows is provided on one side of the upper part of the box, and the bellows is connected to the box.

8. The auxiliary device for electrical testing according to claim 7, characterized in that, The air box is equipped with a cooling fan, and a ventilation pipe is provided between the box body and the air box, and the box body and the air box are connected by the ventilation pipe.

9. The auxiliary device for electrical testing according to claim 8, characterized in that, The upper part of the bellows has an air inlet, and the upper part of the box body has an air outlet.

10. The auxiliary device for electrical testing according to claim 8, characterized in that, The air inlet is located diagonally above the air outlet.

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