PTC heating sheet voltage withstanding test tool and PTC heating sheet voltage withstanding test device

Abstract

The utility model provides a PTC heating sheet voltage withstanding test tool and a PTC heating sheet voltage withstanding test device, a main body of the tool is provided with a stop block, one side of the stop block is provided with a fixed structure and a movable structure, the fixed structure and the movable structure are oppositely arranged, and a placing position is formed among the stop block, the fixed structure and the movable structure. The main body is also provided with a movable conductive probe, one end of the conductive probe is arranged close to the placing position, and the conductive probe and the fixing structure are electrically connected with the test power supply. The placement position of the tool can be adjusted as required, so that the tool can meet the test requirements of PTC heating sheets with different sizes, and the use flexibility and universality of the test device are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PTC heating sheet production, in particular to a PTC heating sheet pressure resistance test tool and a PTC heating sheet pressure resistance test device. Background Art

[0002] With the continuous advancement of science and technology, PTC heaters, as an efficient and stable heating element, have been widely used in various industries, especially in the fields of new energy vehicles, household appliances, and industrial heating. However, with the increase in the use of PTC heaters, their quality and safety performance have also received increasing attention. In order to ensure that the PTC heaters can operate stably under normal operating voltage and do not cause safety accidents such as breakdown or leakage, the PTC heaters need to be subjected to a withstand voltage test during the production process. In the traditional withstand voltage test of PTC heaters, manual operation is usually adopted. During the manual test, the PTC heater needs to be placed on the test fixture of the test device, and then the positive and negative poles of the test power supply are connected to the PTC heater for a withstand voltage test.

[0003] However, the existing test fixture is usually fixed and the clamping width is also fixed, so the adaptation range is small and it cannot adapt to the testing of PTC heating sheets of various specifications.

[0004] Therefore, it is necessary to improve the existing testing device for PTC heating sheets to overcome the defects of the prior art. Utility Model Content

[0005] In order to overcome the problems existing in the related art, one of the purposes of the present invention is to provide a PTC heating element voltage resistance test tool. The placement position of the tool can be adjusted as needed so that the tool can meet the testing requirements of PTC heating elements of different sizes, thereby improving the flexibility and versatility of the test device.

[0006] A PTC heating element withstand voltage test tool comprises a main body, a stopper is provided on the main body, a fixed structure and a movable structure are provided on one side of the stopper, the fixed structure and the movable structure are arranged opposite to each other, a placement position is formed between the stopper, the fixed structure and the movable structure, and a first power line is connected to the fixed structure;

[0007] The main body is further provided with a movable conductive probe, the conductive probe is connected to a second power line, and one end of the conductive probe is arranged close to the placement position.

[0008] The fixture can accommodate PTC heating elements of different sizes due to its adjustable placement position, greatly improving the flexibility of the test and the versatility of the fixture. During the test process, the PTC heating element test can be performed without replacing the entire fixture, which can save testing time and costs.

[0009] In a preferred technical solution of the present invention, a card slot is provided on one side of the stopper, and a card block is provided on one side of the movable structure, and the card block and the card slot are adapted to each other.

[0010] Through the mutual adaptation of the card block and the card slot, the movable structure can be stably locked in the required position after adjustment, which helps to ensure the stability of the test tooling during use.

[0011] In a preferred technical solution of the present invention, a guide rail is provided on the main body, and the guide rail is arranged along the direction from the fixed structure to the movable structure. A slider is provided on the guide rail, and the movable structure is fixedly connected to the slider.

[0012] The combination of the guide rail and the slider allows for high-precision adjustment of the mobile structure, ensuring that the placement can accurately adapt to PTC heating elements of different sizes. The design of the guide rail makes the movement of the mobile structure smoother, reducing possible jitter or offset during adjustment.

[0013] In a better technical solution of the present invention, a first limiting groove is provided on the movable structure, and the first limiting groove is provided on the side of the movable structure close to the stop block; a limiting block is clamped on the first limiting groove, and a second limiting groove is provided on the limiting block.

[0014] The first limiting groove can be used to clamp the PTC heater or the limiting block. The second limiting groove can also be used to clamp the PTC heater. The configuration of the first and second limiting grooves enables the device to clamp PTC heaters of various sizes, thereby meeting different PTC heater testing requirements.

[0015] In a preferred technical solution of the present invention, the fixing structure is made of conductive material, and the fixing structure is fixedly connected to the main body via a screw, and one end of the screw is connected to the first power line.

[0016] The mounting structure can be constructed from highly conductive metal materials, such as copper or aluminum. Using conductive materials ensures a stable current flow during testing, reduces resistance and voltage drop, and thus improves test accuracy. Conductive materials have excellent electrical conductivity, reducing current loss during transmission and ensuring stable and accurate test voltage.

[0017] In a preferred technical solution of the present utility model, a first driving device and a second driving device are provided on the main body, the first driving device is provided on one side of the mobile structure, the output end of the first driving device is fixedly connected to the mobile structure, and the first driving device drives the mobile structure to move closer to or away from the fixed structure;

[0018] The second driving device is disposed on one side of the fixed structure, and an output end of the second driving device is fixedly connected to the conductive probe. The second driving device drives the conductive probe to approach or move away from the placement position.

[0019] In this embodiment, the first driving device and the second driving device may have the same structure and are both implemented by cylinders. The first driving device is used to realize the automatic movement of the moving structure, and the second driving device is used to realize the automatic movement of the conductive probe.

[0020] In a preferred technical solution of the present utility model, a third driving device is provided on the main body, and the third driving device includes a mounting block, a connecting arm and an adjustment handle;

[0021] The mounting block is arranged outside the main body, and the adjustment handle includes a connecting screw and a handle, one end of the connecting screw passes through the mounting block and is threadedly connected to the main body, and the handle is arranged at the end of the connecting screw away from the main body;

[0022] Two connecting arms are provided, and the two connecting arms are respectively connected to opposite sides of the mounting block. A first connecting block and a second connecting block are respectively provided on the side of the two connecting arms away from the mounting block, and the first connecting block and the second connecting block are both hinged to the connecting arms; one end of the conductive probe is fixedly connected to the first connecting block; an insulating probe is also provided on the main body, one end of the insulating probe is fixedly connected to the movable structure, and the other opposite end is fixedly connected to the second connecting block.

[0023] In this embodiment, the mounting block is driven to move by the handle, the mounting block drives the two connecting arms to move, and the two connecting arms drive the conductive probe and the insulating probe to move, thereby realizing the linkage between the moving structure and the conductive probe, which helps to improve the testing efficiency of the PTC heating sheet.

[0024] In a preferred technical solution of the present invention, both the conductive probe and the insulating probe are provided with a spring, and the spring is sleeved on the conductive probe and the insulating probe.

[0025] The spring acts as a buffer and can increase the service life of the tooling.

[0026] The second purpose of the present utility model is to provide a PTC heating element voltage withstand test device, including a tester and the PTC heating element voltage withstand test tool as described above, wherein the first power line and the second power line are both electrically connected to the tester.

[0027] In a preferred technical solution of the present invention, the tester includes a control device, a display screen, a protection circuit module and a power supply, and the display screen, the protection circuit module and the power supply are all electrically connected to the control device.

[0028] The combination of the tester and the PTC heating element withstand voltage test fixture makes the test process more efficient and accurate. The real-time display of test data on the screen allows operators to understand the test status in a timely manner, improving the transparency and traceability of the test.

[0029] The beneficial effects of the utility model are:

[0030] The utility model provides a PTC heater withstand voltage test fixture. The fixture includes a block disposed on a main body. A fixed structure and a movable structure are disposed on one side of the block. The fixed structure and the movable structure are arranged relative to each other, forming a placement position between the block, the fixed structure, and the movable structure. A movable conductive probe is also disposed on the main body, one end of the conductive probe being positioned adjacent to the placement position. The conductive probe and the fixed structure are both electrically connected to a test power supply. During testing, the PTC heater is placed in the placement position, and the movable structure is then driven to move, causing the movable structure to push the heater. When the heater abuts against the fixed structure, the PTC heater is clamped. The conductive probe is then moved until it contacts the heater. This forms an electrical circuit with the conductive probe, the heater, and the fixed structure, allowing the PTC heater withstand voltage test to proceed. Because the placement position is adjustable, the fixture can accommodate PTC heaters of varying sizes, significantly improving testing flexibility and versatility. Furthermore, testing of the PTC heater can be performed without replacing the entire fixture, saving testing time and costs.

[0031] The present application also provides a PTC heating element voltage withstand test device, which includes the above-mentioned PTC heating element voltage withstand test tooling. The tooling of the device can adapt to the testing of heating elements of different sizes. Therefore, the entire device has a high degree of flexibility and versatility in use, and is easy to operate, which can improve the testing efficiency of PTC heating elements. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 Schematic diagram of the front side of the PTC heating element withstand voltage test tool provided in the embodiment of the present utility model;

[0033] Figure 2Schematic diagram of the back side of the PTC heating element withstand voltage test tool provided in an embodiment of the present utility model;

[0034] Figure 3 This is a schematic diagram of the PTC heating element withstand voltage test tool provided in an embodiment of the present utility model without the PTC heating element;

[0035] Figure 4 Schematic diagram of a PTC heating element withstand voltage test fixture provided with a first drive device and a second drive device provided in an embodiment of the present utility model;

[0036] Figure 5 Schematic diagram of a PTC heating element withstand voltage test fixture provided with a third driving device provided in an embodiment of the present utility model;

[0037] Figure 6 Schematic diagram of a moving structure provided with a first limiting groove provided in an embodiment of the present utility model;

[0038] Figure 7 It is a schematic diagram of the cooperation between the moving structure and the guide rail provided in the embodiment of the utility model;

[0039] Figure 8 It is a schematic diagram of a tester provided in an embodiment of the present utility model.

[0040] Reference numerals:

[0041] 1. Main body; 11. Stop block; 111. Placement position; 12. Fixed structure; 121. Screw; 13. Moving structure; 131. Block; 132. First limiting groove; 133. Limiting block; 134. Second limiting groove; 14. Conductive probe; 141. Spring; 15. Insulating probe; 16. Guide rail; 161. Slider; 2. First driving device; 3. Second driving device; 4. Third driving device; 41. Mounting block; 42. Adjusting handle; 421. Connecting screw; 422. Handle; 43. Connecting arm; 44. First connecting block; 45. Second connecting block; 100. Tester; 110. Display screen; 120. Control device; 130. Protection circuit module; 140. Power supply. DETAILED DESCRIPTION

[0042] The following describes preferred embodiments of the present invention in more detail with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0043] In existing PTC heating element test devices, the test fixture is usually fixed and the clamping width is also fixed, so the adaptation range is small and it cannot adapt to the testing of PTC heating elements of various specifications.

[0044] Based on this, the present application provides a PTC heating element pressure resistance test tool.

[0045] Example 1

[0046] like Figures 1-8 As shown, this embodiment provides a PTC heating element withstand voltage test tool, including a main body 1, a stopper 11 is provided on the main body 1, a fixed structure 12 and a movable structure 13 are provided on one side of the stopper 11, the fixed structure 12 and the movable structure 13 are arranged opposite to each other, and a placement position 111 is formed between the stopper 11, the fixed structure 12 and the movable structure 13, and a first power supply line 140 is connected to the fixed structure 12;

[0047] The main body 1 is further provided with a movable conductive probe 14, which is connected to a second power supply 140. One end of the conductive probe 14 is disposed near the placement position 111. The fixed structure 12 and the movable structure 13 may be rectangular parallelepiped objects.

[0048] In actual operation, the tester can adjust the position of the movable structure 13 according to the size of the PTC heating element to be tested, thereby changing the size of the placement position 111. Subsequently, the PTC heating element is placed between the fixed structure 12 and the movable structure 13, and the conductive probe 14 is used to gently touch the PTC heating element. Then, voltage is applied through the first power supply line 140 and the second power supply line 140 to perform a withstand voltage test.

[0049] The stopper 11, the fixed structure 12 and the movable structure 13 form a placement position 111 from three sides, so that the PTC heating element can be fixed at three points during the process, ensuring the stability of the PTC heating element and helping to ensure the accuracy of the test results.

[0050] Because the size of the placement position 111 is adjustable, the tooling can accommodate PTC heating elements of different sizes. By simply adjusting the position of the movable structure 13, the tooling can be quickly adapted to PTC heating elements of different sizes without having to replace the entire tooling, thus saving testing time and cost. During the test process, the PTC heating element test can be performed without having to replace the entire tooling, which can save testing time and cost.

[0051] In practical applications, the main body 1 and the stopper 11 of the present application are both made of insulating materials.

[0052] In a better technical solution of this embodiment, a card slot is provided on one side of the stopper 11, and a card block 131 is provided on one side of the movable structure 13, and the card block 131 and the card slot are adapted to each other.

[0053] Through the mutual adaptation of the clamping block 131 and the clamping slot, the movable structure 13 can be stably locked in a desired position after adjustment, which helps to ensure the stability of the test tool during use.

[0054] Specifically, the length of the slot runs from the fixed structure 12 to the movable structure 13. The size of the block 131 is slightly smaller than the slot, allowing it to move within the slot. The interaction between the block 131 and the slot ensures that the movable structure 13 moves smoothly without shifting, thereby accurately compressing the PTC heating element.

[0055] In a better technical solution of this embodiment, a guide rail 16 is provided on the main body 1, and the guide rail 16 is arranged along the direction from the fixed structure 12 to the movable structure 13. A slider 161 is provided on the guide rail 16, and the movable structure 13 is fixedly connected to the slider 161.

[0056] The sliding movement of the slider 161 on the guide rail 16 allows the movable structure 13 to move more smoothly and precisely. Testers can easily adjust the position of the movable structure 13 simply by sliding the slider 161, without the need for complex procedures or tools. This not only improves work efficiency but also reduces operational difficulty, making the testing process simpler and faster. Furthermore, the smoother and more precise movement of the movable structure 13 effectively reduces errors caused by human operation, improving the accuracy and reliability of test results.

[0057] In summary, the cooperation between the guide rail 16 and the slider 161 enables high-precision adjustment of the movable structure 13, ensuring that the placement position 111 can accurately accommodate PTC heating elements of different sizes. The design of the guide rail 16 makes the movement of the movable structure 13 smoother, reducing possible jitter or deviation during the adjustment process.

[0058] In a more preferred embodiment, two guide rails 16 may be provided, and correspondingly, each guide rail 16 is provided with a slider 161 .

[0059] In this embodiment, the movement of the movable structure 13 and the conductive probe 14 can be adjusted manually or electrically driven.

[0060] Example 2

[0061] like Figures 1-8 As shown, this embodiment is a further improvement on embodiment 1.

[0062] In this embodiment, a first limiting groove 132 is provided on the movable structure 13, and the first limiting groove 132 is provided on the side of the movable structure 13 close to the stop block 11; a limiting block 133 is clamped on the first limiting groove 132, and a second limiting groove 134 is provided on the limiting block 133.

[0063] The first limiting groove 132 can be used to clamp the PTC heater, or it can be used to clamp the limiting block 133. The second limiting groove 134 can also be used to clamp the PTC heater. By using these two limiting grooves in combination, the tool can easily adapt to and clamp PTC heaters of various sizes, thereby meeting the testing needs of PTC heaters of various specifications on the market.

[0064] Specifically, the limit block 133 of the present application is made of elastic material to ensure that PTC heating sheets of different sizes can be firmly clamped in the second limit groove 134 to prevent displacement or loosening during testing. The limit block 133 can also be clamped in the first limit groove 132.

[0065] The modular design of the movable structure 13 and the limit block 133 allows testers to replace different limit modules as needed to adapt to PTC heating sheets of different sizes. This design can greatly reduce the time and cost of replacing tooling.

[0066] Example 3

[0067] like Figures 1-8 As shown, this embodiment is further improved on the basis of embodiment 1.

[0068] In this embodiment, the fixing structure 12 is made of a conductive material, and the fixing structure 12 is fixedly connected to the main body 1 via a screw 121 , and one end of the screw 121 is connected to the first power supply 140 line.

[0069] The fixing structure 12 is fixedly connected to the main body 1 via screws 121. Notably, one end of the screw 121 is also connected to the first power supply 140. This design not only ensures a secure connection between the fixing structure 12 and the main body 1, but also provides a stable and reliable interface for inputting the test current. Specifically, one end of the screw 121 can penetrate the side wall of the main body 1.

[0070] The fixing structure 12 is tightly connected to the main body 1 by screws 121, which not only enhances the stability of the overall structure, but also ensures that there will be no accidental loosening or displacement during the test, further ensuring the safety and accuracy of the test.

[0071] The fixing structure 12 can be made of a metal material with high conductivity, such as copper or aluminum. The fixing structure 12 made of conductive material can significantly reduce the resistance and voltage drop of the current during transmission, thereby ensuring the stability of the current during the test.

[0072] The conductive material has good conductivity, which can reduce the loss of current during transmission and ensure the stability and accuracy of the test voltage.

[0073] Example 4

[0074] like Figures 1-8 As shown, this embodiment is further improved on the basis of embodiment 1.

[0075] In this embodiment, the main body 1 is provided with a first driving device 2 and a second driving device 3. The first driving device 2 is provided on one side of the mobile structure 13. The output end of the first driving device 2 is fixedly connected to the mobile structure 13. The first driving device 2 drives the mobile structure 13 to move toward or away from the fixed structure 12.

[0076] The second driving device 3 is disposed on one side of the fixed structure 12 , and an output end of the second driving device 3 is fixedly connected to the conductive probe 14 . The second driving device 3 drives the conductive probe 14 to move toward or away from the placement position 111 .

[0077] In this embodiment, the first drive device 2 and the second drive device 3 can have the same structure, and both are implemented by cylinders. Since the first drive device 2 and the second drive device 3 adopt the same structural design, maintenance and replacement of the equipment become simpler and more convenient.

[0078] In actual applications, the first driving device 2 is used to realize the automatic movement of the moving structure 13 , and the second driving device 3 is used to realize the automatic movement of the conductive probe 14 .

[0079] It should be noted that the first drive device 2 and the second drive device 3 of the present application work in coordination. This embodiment realizes the automated movement of the movable structure 13 and the conductive probe 14. The operator does not need to manually adjust the position of the movable structure 13 and the conductive probe 14, which reduces the difficulty of operation and the error rate. This helps to improve the convenience and accuracy of the test operation.

[0080] Example 5

[0081] like Figures 1-8 As shown, this embodiment is further improved on the basis of embodiment 1.

[0082] In this embodiment, the main body 1 is provided with a third driving device 4, and the third driving device 4 includes a mounting block 41, a connecting arm 43 and an adjusting handle 42;

[0083] The mounting block 41 is arranged outside the main body 1, and the adjustment handle 42 includes a connecting screw 421 and a handle 422. One end of the connecting screw 421 passes through the mounting block 41 and is threadedly connected to the main body 1, and the handle 422 is arranged at the end of the connecting screw 421 away from the main body 1; the mounting block 41 provides stable support for the entire driving device.

[0084] Two connecting arms 43 are provided, and the two connecting arms 43 are respectively connected to the opposite sides of the mounting block 41. A first connecting block 44 and a second connecting block 45 are respectively provided on the side of the two connecting arms 43 away from the mounting block 41. The first connecting block 44 and the second connecting block 45 are both hinged to the connecting arm 43; both connecting blocks are hinged to the connecting arm 43, thereby ensuring the flexibility of the connecting arm 43 during movement.

[0085] One end of the conductive probe 14 is fixedly connected to the first connecting block 44 ; an insulating probe 15 is also provided on the main body 1 , one end of the insulating probe 15 is fixedly connected to the movable structure 13 , and the other end thereof is fixedly connected to the second connecting block 45 .

[0086] In practice, the operator simply rotates handle 422 to move mounting block 41. The movement of mounting block 41 further drives the movement of two connecting arms 43, which in turn drives the corresponding movement of conductive probe 14 and insulating probe 15. This linkage mechanism not only simplifies the operation process but also greatly improves testing efficiency.

[0087] Through the linkage design of the third driving device 4, the operator can adjust the positions of the conductive probe 14 and the insulating probe 15 at one time, thereby significantly improving the testing efficiency of the PTC heating sheet.

[0088] Compared with the fourth embodiment in which the positions of the conductive probe 14 and the movable structure 13 are adjusted separately, this embodiment simplifies this step through a linkage design, allowing the operator to complete the pre-test preparation work more quickly.

[0089] In a more preferred embodiment, the handle 422 may be driven to rotate by a motor, thereby achieving linkage control of the conductive probe 14 and the insulating probe 15 .

[0090] In a more preferred technical solution of this embodiment, a spring 141 is provided on each of the conductive probe 14 and the insulating probe 15 , and the spring 141 is sleeved on the conductive probe 14 and the insulating probe 15 .

[0091] When conductive probe 14 or insulated probe 15 comes into contact with the PTC heating element, spring 141 acts as a buffer. During tooling operation, the probes may be subjected to unexpected impacts due to improper operation or external factors. In these cases, spring 141 absorbs some of the impact, reducing the risk of probe bending or breakage, thereby extending the tooling's service life.

[0092] Spring 141 also helps the probe quickly return to its original position after being subjected to external force, ensuring the accuracy and stability of the test. This design not only improves the durability of the tooling, but also enhances its reliability and stability in actual application.

[0093] The spring 141 is installed as follows:

[0094] The spring 141 is respectively sleeved on the conductive probe 14 and the insulating probe 15 to ensure that the spring 141 can slide and fit tightly against the probes.

[0095] The conductive probe 14 and the insulating probe 15 equipped with a spring 141 are fixed at corresponding positions on the tool body 1 .

[0096] During the test, observe whether the spring 141 can play a buffering role and reduce the impact force on the two probes.

[0097] After the test is completed, check whether the probe is intact and record the test results.

[0098] Example 6

[0099] like Figures 1-8 As shown, this embodiment provides a PTC heating element withstand voltage test device. The test device includes a tester 100 and the PTC heating element withstand voltage test tool as described above, and the first power line 140 and the second power line 140 are both electrically connected to the tester 100.

[0100] More specifically, the tester 100 includes a control device 120 , a display screen 110 , a protection circuit module 130 , and a power supply 140 . The display screen 110 , the protection circuit module 130 , and the power supply 140 are all electrically connected to the control device 120 .

[0101] The tester 100 is the core part of the present invention, and its structural features and working principles are as follows: the tester 100 is mainly composed of components such as a control device 120, a display screen 110, a protection circuit module 130 and a power supply 140. The control device 120 serves as the brain of the entire tester 100 and is responsible for receiving and processing various signals and controlling the test process. The display screen 110 is used to display test data in real time, so that the operator can intuitively understand the test progress and results. The protection circuit module 130 is set to ensure the safety of the test process. Once an abnormal situation such as overcurrent or overvoltage occurs, the protection circuit module 130 will immediately cut off the power supply 140 to prevent equipment damage and personal injury. The power supply 140 provides stable and reliable power support for the entire tester 100. Specifically, the power supply 140 of the present application can adopt an external power supply 140 or be directly connected to the mains.

[0102] Through an integrated design, the control device 120, display screen 110, protection circuit module 130, and power supply 140 are tightly integrated, resulting in a compact, fully functional, and easy-to-operate tester 100. Furthermore, the perfect combination of the tester 100 and the PTC heating element withstand voltage test fixture makes the testing process more efficient and accurate. Finally, the real-time display of test data on the display screen 110 allows operators to promptly understand the test status, improving test transparency and traceability.

[0103] The protection circuit module 130 of this embodiment may include:

[0104] The voltage detection unit is responsible for real-time monitoring of the voltage level in the circuit of the test device and can respond quickly when the voltage is abnormal (such as overvoltage or undervoltage).

[0105] The current detection unit is used to monitor the current flow in the circuit. Once an abnormal current (such as overcurrent) is detected, the protection mechanism will be triggered.

[0106] Protective devices: such as fuses, thermistors, circuit breakers, etc. When protective devices detect abnormal voltage or current, they will act quickly to cut off the circuit or limit the current to prevent damage.

[0107] The control logic unit receives signals from the voltage and current detection units and determines whether to trigger protection actions based on the preset protection strategy. The control logic unit also controls the operation of protection devices to ensure circuit safety.

[0108] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0109] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0110] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A PTC heating element withstand voltage test tool, comprising a main body (1), a stopper (11) being provided on the main body (1), and characterized in that: A fixed structure (12) and a movable structure (13) are provided on one side of the stopper (11); the fixed structure (12) and the movable structure (13) are arranged relative to each other, and a placement position (111) is formed between the stopper (11), the fixed structure (12) and the movable structure (13); A movable conductive probe (14) is also provided on the main body (1); the conductive probe (14) and the fixed structure (12) are both electrically connected to a test power supply; one end of the conductive probe (14) is disposed near the placement position (111).

2. The PTC heating element withstand voltage test tool according to claim 1, characterized in that: A card slot is provided on one side of the stop block (11), and a card block (131) is provided on one side of the movable structure (13), wherein the card block (131) and the card slot are adapted to each other.

3. The PTC heating element withstand voltage test tool according to claim 2, characterized in that: A guide rail (16) is provided on the main body (1), and the guide rail (16) is provided along the direction from the fixed structure (12) to the movable structure (13). A slider (161) is provided on the guide rail (16), and the movable structure (13) is fixedly connected to the slider (161).

4. The PTC heating element withstand voltage test tool according to claim 2, characterized in that: The movable structure (13) is provided with a first limiting groove (132), which is provided on a side of the movable structure (13) close to the stop block (11); a limiting block (133) is clamped on the first limiting groove (132), and a second limiting groove (134) is provided on the limiting block (133).

5. The PTC heating element withstand voltage test tool according to any one of claims 1 to 4, characterized in that: The fixing structure (12) is made of a conductive material, and the fixing structure (12) is fixedly connected to the main body (1) via a screw (121), and one end of the screw (121) is connected to a first power line.

6. The PTC heating element withstand voltage test tool according to any one of claims 1 to 4, characterized in that: The main body (1) is provided with a first driving device (2) and a second driving device (3); the first driving device (2) is provided on one side of the mobile structure (13); an output end of the first driving device (2) is fixedly connected to the mobile structure (13); and the first driving device (2) drives the mobile structure (13) to move closer to or away from the fixed structure (12); The second driving device (3) is arranged on one side of the fixed structure (12), the output end of the second driving device (3) is fixedly connected to the conductive probe (14), and the second driving device (3) drives the conductive probe (14) to approach or move away from the placement position (111).

7. The PTC heating element withstand voltage test tool according to any one of claims 1 to 4, characterized in that: The main body (1) is provided with a third driving device (4), and the third driving device (4) comprises a mounting block (41), a connecting arm (43) and an adjusting handle (42); The mounting block (41) is arranged outside the main body (1); the adjusting handle (42) comprises a connecting screw (421) and a handle (422); one end of the connecting screw (421) passes through the mounting block (41) and is threadedly connected to the main body (1); and the handle (422) is arranged at an end of the connecting screw (421) away from the main body (1); Two connecting arms (43) are provided, and the two connecting arms (43) are respectively connected to opposite sides of the mounting block (41); a first connecting block (44) and a second connecting block (45) are respectively provided on the side of the two connecting arms (43) away from the mounting block (41); the first connecting block (44) and the second connecting block (45) are both hinged to the connecting arms (43); one end of the conductive probe (14) is fixedly connected to the first connecting block (44); an insulating probe (15) is also provided on the main body (1); one end of the insulating probe (15) is fixedly connected to the movable structure (13), and the other end thereof is fixedly connected to the second connecting block (45).

8. The PTC heating element withstand voltage test tool according to claim 7, characterized in that: The conductive probe (14) and the insulating probe (15) are both provided with a spring (141), the spring (141) is sleeved on the conductive probe (14) and the insulating probe (15), and one end of the conductive probe (14) is connected to a second power line.

9. A PTC heating element withstand voltage test device, characterized by: The invention comprises a tester (100) and a PTC heating element withstand voltage test fixture according to any one of claims 1 to 8, wherein the fixing structure (12) and the conductive probe (14) are both electrically connected to the tester (100).

10. The PTC heating element withstand voltage test device according to claim 9, characterized in that: The tester (100) comprises a control device (120), a display screen (110), a protection circuit module (130) and a power supply (140); the display screen (110), the protection circuit module (130) and the power supply (140) are all electrically connected to the control device (120).

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