An auxiliary tool for detecting a direct current (DC) terminal
Patent Information
- Application Number
- CN202521971449.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-09-15
AI Technical Summary
1. 通过设置弹性单元，在导电单元与导电连接板接触后，上座体继续向下移动时，导电连接板反推导电单元携带下座体向上移动或倾斜，此时弹性单元被挤压。弹簧在自身弹力作用下通过下压座将导电单元压紧在导电连接板上。这种结构能够有效降低导电单元和导电连接板虚接的情况，确保电流能够稳定、可靠地传输，从而提高检测过程中DC端子通电的可靠性，避免因接触不良导致的检测误差或设备损坏；
Smart Images
Figure CN224788786U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of DC terminal testing technology, and in particular to an auxiliary tooling for DC terminal testing. Background Technology
[0002] A DC terminal in an electronic control system is an electrical connection component used in DC circuits to achieve power transmission and control. To ensure the reliability of its connection, the stability of its electrical performance, and the integrity of its insulation performance, thereby detecting and eliminating potential faults in advance and ensuring the safe operation of the equipment, DC terminals in electronic control systems generally need to undergo power-on testing before leaving the factory.
[0003] Currently, when applying current to the DC terminals of electronically controlled devices, two electrodes are typically pressed directly onto the DC terminals for energization testing. However, this testing method is prone to unstable contact, which can lead to sparks during energization. This not only affects the accuracy of the test results but may also threaten the safety of equipment and personnel. Utility Model Content
[0004] To improve the convenience and stability of DC terminal testing, this application provides an auxiliary tooling for DC terminal testing.
[0005] The auxiliary tooling for DC terminal testing provided in this application adopts the following technical solution: An auxiliary tooling for DC terminal testing includes a substrate, a base, and a pressure seat, wherein: The base is disposed on the top of the substrate; The pressure seat is located above the base, and a conductive unit is provided on the pressure seat. One end of the conductive unit is connected to a power cable, and the other end of the conductive unit is located directly above the base. The lower pressure seat moves vertically via a drive source.
[0006] Optionally, the top of the base is provided with a slot for placing a terminal block for a DC terminal.
[0007] Optionally, the lower pressure seat includes an upper body and a lower body, wherein: The upper body and the drive source are connected in a transmission connection; The lower seat is located below the upper seat and is universally connected to the upper seat.
[0008] Optionally, the lower seat body has a first hole at its top, and the first hole penetrates through the bottom of the first hole body; A connecting rod is provided at the first hole, the connecting rod passes through the first hole and is clearance-fitted with the first hole, the top end of the connecting rod is fixedly connected to the upper seat, and the bottom end of the connecting rod is provided with a blocking block that contacts the lower seat.
[0009] Optionally, an elastic unit is provided between the upper seat and the lower seat.
[0010] Optionally, a second hole is provided on the side wall of the upper seat, and a third hole is provided at the bottom of the inner wall of the second hole, penetrating the bottom of the upper seat; The top of the lower seat body is provided with a fourth hole that penetrates the bottom of the lower seat body; The conductive unit includes a first conductor and a second conductor, wherein: The first conductor is placed inside the second hole, the second conductor is placed inside the third hole and the fourth hole, and the first conductor and the second conductor are electrically connected.
[0011] Optionally, the second conductor is provided with a limiting unit.
[0012] Optionally, a protective ring is provided on the side wall of the upper body, and the end of the first conductor connected to the power cable is located inside the protective ring.
[0013] In summary, this application includes at least one of the following beneficial technical effects: 1. By incorporating an elastic unit, after the conductive unit contacts the conductive connecting plate, as the upper seat continues to move downwards, the conductive connecting plate pushes the conductive unit, causing the lower seat to move upwards or tilt. At this point, the elastic unit is compressed. The spring, under its own elastic force, presses the conductive unit firmly against the conductive connecting plate through the lower pressure seat. This structure effectively reduces the possibility of poor contact between the conductive unit and the conductive connecting plate, ensuring stable and reliable current transmission, thereby improving the reliability of DC terminal energization during detection and avoiding detection errors or equipment damage caused by poor contact. 2. The base has a placement slot at the top. When placing the DC terminal, the conductive connection plate of the DC terminal is placed on top of the base, which supports the conductive connection plate and positions the terminals of the conductive connection plate inside the placement slot. The inner wall of the placement slot positions the conductive connection plate using the terminals. This design not only facilitates the placement of the conductive connection plate and improves operational convenience, but also ensures the accurate positioning of the conductive connection plate. This allows the conductive unit to accurately contact the conductive connection plate, reducing problems such as poor contact caused by positional deviations and improving detection efficiency and accuracy. 3. When the conductive unit and the conductive connecting plate come into contact, the lower seat can drive the conductive unit to make fine adjustments, ensuring the conductive unit fits as closely as possible to the conductive connecting plate, reducing the possibility of sparks due to incomplete connection. Furthermore, the protective ring on the side wall of the upper seat protects the connection point between the first conductor and the power cable, reducing the possibility of accidental contact. These designs effectively reduce potential electrical safety hazards during power-on testing, protecting the safety of operators and ensuring the normal operation of the testing equipment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the DC terminal test status in an embodiment of this application.
[0015] Figure 2 This is a schematic diagram illustrating the DC terminal structure in the embodiments of this application.
[0016] Figure 3 This is a schematic diagram of the overall structure of an embodiment of this application.
[0017] Figure 4 This is a schematic diagram illustrating the upper seat structure in an embodiment of this application.
[0018] Figure 5 This is a schematic diagram illustrating the relative positions of the conductive unit and the lower seat in an embodiment of this application.
[0019] Figure 6 This is a schematic diagram illustrating the conductive unit structure in the embodiments of this application.
[0020] Explanation of reference numerals in the attached figures: 1. DC terminal; 11. DC terminal body; 12. Conductive connection plate; 13. Terminal block; 2. Base plate; 21. Cylinder; 22. Mounting plate; 3. Base; 31. Placement slot; 4. Lower pressure seat; 5. Upper seat body; 51. Second hole; 52. Third hole; 53. Protective ring; 6. Lower seat body; 61. First hole; 62. Connecting rod; 63. Blocking block; 64. Elastic unit; 7. Conductive unit; 71. First conductor; 72. Second conductor; 73. Limiting groove; 8. Clamp; 9. Limiting ring. Detailed Implementation
[0021] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.
[0022] This application discloses an auxiliary tooling for testing DC terminals.
[0023] A DC terminal 1 includes a DC terminal body 11 and a conductive connection plate 12. The conductive connection plate 12 is fixedly installed on the DC terminal body 11. There is a pair of conductive connection plates 12, and each conductive connection plate 12 is fixedly installed with a terminal post 13.
[0024] An auxiliary tooling for DC terminal testing includes a substrate 2, a base 3, and a pressure seat 4. The substrate 2 is fixedly installed in a predetermined position, the base 3 is fixedly installed on the top of the substrate 2, and the pressure seat 4 is located above the base 3. The pressure seat 4 moves vertically by a drive source. A conductive unit 7 is installed on the pressure seat 4, and one end of the conductive unit 7 is connected to a power cable.
[0025] When the DC terminal is energized, the conductive connection plate 12 of the DC terminal is placed on the base 3. Then, the pressure seat 4 is moved downward by the drive source, and the conductive unit 7 and the conductive connection plate 12 of the DC terminal are brought into contact. The current of the power cable is transferred to the conductive connection plate 12 of the DC terminal through the conductive unit 7, thereby energizing the DC terminal so that the DC terminal can be tested under energized conditions.
[0026] The base 3 has a placement groove 31 on its top. When placing the DC terminal, the conductive connection plate 12 of the DC terminal is placed on the top of the base 3. At the same time, the base 3 supports the conductive connection plate 12 of the DC terminal, and the terminal 13 of the conductive connection plate 12 is placed inside the placement groove 31. The placement groove 31 reduces the interference of the terminal 13 on the placement of the conductive connection plate 12. Meanwhile, the terminal 13 is placed in the placement groove 31, and the inner wall of the placement groove 31 is positioned by the terminal 13 to facilitate the convenient and accurate placement of the conductive connection plate 12, and to facilitate contact between the conductive unit 7 and the conductive connection plate 12.
[0027] The lower pressure seat 4 includes an upper seat body 5 and a lower seat body 6. The upper seat body 5 is connected to the drive source, and the lower seat body 6 is located below the upper seat body 5 and is universally connected to the upper seat body 5.
[0028] In this embodiment, the driving source is a cylinder 21. The bottom end of the cylinder 21 is fixedly mounted on the base plate 2. The top of the push rod of the cylinder 21 is provided with a long strip-shaped mounting plate 22. The top of the upper seat 5 is fixedly mounted on the bottom of the mounting plate 22. The upper seat 5 moves vertically by extending and retracting the cylinder 21. The lower seat 6 and the upper seat 5 are universally connected. When the conductive unit 7 and the conductive connecting plate 12 come into contact, the movable lower seat 6 drives the conductive unit 7 to make a fine adjustment so that the conductive unit 7 can fit as close as possible to the conductive connecting plate 12, reducing the possibility of incomplete connection and sparks between the conductive unit 7 and the conductive connecting plate 12.
[0029] The lower seat 6 has a first hole 61 at its top, which extends through the bottom of the lower seat 6. A connecting rod 62 is provided at the first hole 61, extending through the first hole 61 and fitting with it with a clearance. The top end of the connecting rod 62 is fixedly connected to the upper seat 5. In this embodiment, the top end of the connecting rod 62 is threadedly connected to the upper seat 5. A blocking block 63 is fixedly connected to the bottom of the connecting rod 62, with the top end of the blocking block 63 contacting the bottom of the lower seat 6.
[0030] The lower seat 6 moves vertically under the guidance of the connecting rod 62. At the same time, the connecting rod 62 and the first hole 61 are in clearance fit. Thus, the lower seat 6 can move relative to the connecting rod 62 on the horizontal plane, and the lower seat 6 and the connecting rod 62 can be slightly tilted relative to each other. By moving the lower seat 6, the conductive unit 7 on the lower seat 6 can be moved to make fine adjustments so that the conductive unit 7 is as close as possible to the conductive connecting plate 12.
[0031] An elastic unit 64 is provided between the upper seat 5 and the lower seat 6. When the drive source drives the upper seat 5 to move downward, the conductive unit 7 installed on the lower seat 6 contacts the conductive connecting plate 12. When the upper seat 5 continues to move downward, the conductive connecting plate 12 pushes the conductive unit 7, carrying the lower seat 6 upward or tilting it. When the lower seat 6 and the upper seat 5 move relative to each other, the lower seat 6 and the upper seat 5 squeeze the elastic unit 64. Thus, under its own elastic force, the elastic unit 64 presses the conductive unit 7 onto the conductive connecting plate 12 through the lower pressure seat 4, reducing the possibility of loose contact between the conductive unit 7 and the conductive connecting plate 12. At the same time, the elastic unit 64 also reduces the possibility of excessive pressure between the conductive unit 7 and the conductive connecting plate 12. In this embodiment, the elastic unit 64 is a spring, which is sleeved on the connecting rod 62. The top end of the spring contacts the bottom of the upper seat 5, and the bottom end of the spring contacts the top of the lower seat 6.
[0032] The upper seat 5 has a second hole 51 on its side wall, and a third hole 52 penetrating the bottom of the upper seat 5 is provided at the bottom of the inner wall of the second hole 51. The lower seat 6 has a fourth hole penetrating the bottom of the lower seat 6 at its top. The conductive unit 7 includes a first conductor 71 and a second conductor 72. The first conductor 71 is placed inside the second hole 51, and the second conductor 72 is placed inside the third hole 52 and the fourth hole. The first conductor 71 and the second conductor 72 are connected by bolts to achieve electrical connection.
[0033] The second conductor 72 is provided with a limiting unit, which includes a clamp 8 and a limiting ring 9. The limiting ring 9 is located at the bottom of the second conductor 72, and the top of the limiting ring 9 contacts the bottom of the lower seat 6. The limiting ring 9 and the second conductor 72 are integrally formed. The side wall of the second conductor 72 is provided with a limiting groove 73. The clamp 8 is engaged in the limiting groove 73, and the bottom of the clamp 8 contacts the top of the lower seat 6. The second conductor 72 is installed on the lower seat 6 through the cooperation of the clamp 8 and the limiting ring 9, so as to facilitate synchronous movement with the lower seat 6.
[0034] Since there is a pair of conductive connecting plates 12, the lower seat body 6 and the conductive unit 7 are matched and paired. When in contact with the conductive connecting plate 12, the conductive unit 7 and the conductive connecting plate 12 correspond one-to-one.
[0035] A protective ring 53 is provided on the side wall of the upper body 5. The end of the first conductor 71 connected to the power cable is located inside the protective ring 53, so as to protect the connection between the first conductor 71 and the power cable and reduce the possibility of accidental contact.
[0036] The implementation principle of the auxiliary tooling for DC terminal testing in this application embodiment is as follows: When performing a power-on test on the DC terminal 1, the conductive connection plate 12 of the DC terminal is first placed in the placement groove 31 of the base 3. The base 3 supports the conductive connection plate 12, and the inner wall of the placement groove 31 is positioned by the terminal block 13 to ensure convenient and accurate placement. Next, the pressure seat 4 is moved downward by the drive source, and the conductive unit 7 on the pressure seat 4 contacts the conductive connection plate 12 of the DC terminal. During the contact process, the lower seat body 6 of the pressure seat 4 can be finely adjusted under the guidance of the connecting rod 62 to make the conductive unit 7 fit as closely as possible to the conductive connection plate 12, avoiding incomplete connection and sparks. When the conductive unit 7 contacts the conductive connecting plate 12, the upper seat 5 continues to move downwards. The conductive connecting plate 12 pushes the conductive unit 7, causing the lower seat 6 to move upwards or tilt. At this time, the elastic unit 64 between the upper seat 5 and the lower seat 6 is compressed. Under its own elastic force, the spring presses the conductive unit 7 onto the conductive connecting plate 12 through the lower pressure seat 4, reducing the possibility of loose connection and avoiding excessive pressure. Finally, the current of the power cable is transmitted to the conductive connecting plate 12 of the DC terminal through the conductive unit 7, realizing the energization of the DC terminal for detection under energized conditions.
[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An auxiliary tooling for testing DC terminals, characterized in that: Includes a substrate, a base, and a lower pressure seat, wherein: The base is disposed on the top of the substrate; The pressure seat is located above the base, and a conductive unit is provided on the pressure seat. One end of the conductive unit is connected to a power cable, and the other end of the conductive unit is located directly above the base. The lower pressure seat moves vertically via a drive source.
2. The auxiliary tooling for DC terminal testing according to claim 1, characterized in that: The top of the base is provided with a slot for placing the terminal block of the DC terminal.
3. The auxiliary tooling for DC terminal testing according to claim 1, characterized in that: The lower pressure seat includes an upper seat body and a lower seat body, wherein: The upper body and the drive source are connected in a transmission connection; The lower seat is located below the upper seat and is universally connected to the upper seat.
4. The auxiliary tooling for DC terminal testing according to claim 3, characterized in that: The lower seat body has a first hole at its top, and the first hole penetrates through the bottom of the first hole body; A connecting rod is provided at the first hole, the connecting rod passes through the first hole and is clearance-fitted with the first hole, the top end of the connecting rod is fixedly connected to the upper seat, and the bottom end of the connecting rod is provided with a blocking block that contacts the lower seat.
5. The auxiliary tooling for DC terminal testing according to claim 4, characterized in that: An elastic unit is provided between the upper seat and the lower seat.
6. The auxiliary tooling for DC terminal testing according to claim 3, characterized in that: The upper seat body has a second hole on its side wall, and the bottom of the inner wall of the second hole body has a third hole that penetrates the bottom of the upper seat body. The top of the lower seat body is provided with a fourth hole that penetrates the bottom of the lower seat body; The conductive unit includes a first conductor and a second conductor, wherein: The first conductor is placed inside the second hole, the second conductor is placed inside the third hole and the fourth hole, and the first conductor and the second conductor are electrically connected.
7. The auxiliary tooling for DC terminal testing according to claim 6, characterized in that: The second conductor is provided with a limiting unit.
8. The auxiliary tooling for DC terminal testing according to claim 6, characterized in that: A protective ring is provided on the side wall of the upper body, and the end of the first conductor connected to the power cable is located inside the protective ring.