Initiating explosive device insulation resistance testing device with switching box
By using a pyrotechnic insulation resistance testing device with an adapter box, and by employing a toggle switch and silicone rubber protection design, the problem of unreliable traditional alligator clip connections is solved, achieving efficient and safe insulation resistance testing.
Patent Information
- Application Number
- CN202423207269.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-25
AI Technical Summary
In existing pyrotechnic insulation resistance testing, the traditional alligator clip connection method results in low operating efficiency, unreliable connection, easy error and short circuit risk, affecting the safety and efficiency of the test.
The device employs an insulation resistance tester for pyrotechnic products with an adapter box, and uses a toggle switch instead of alligator clips for line switching. Combined with silicone rubber protection and silicone gel weight-increasing design, it ensures that there is no exposed metal at the joint, thereby improving connection reliability and safety.
It achieves efficient and reliable line switching, avoids connector connection errors and short circuit risks, and improves test safety and ease of operation.
Smart Images
Figure CN223827742U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pyrotechnic insulation resistance testing technology, and in particular to a pyrotechnic insulation resistance testing device with an adapter box. Background Technology
[0002] Currently, insulation resistance testing of pyrotechnic products is widely used, and double-bridge pyrotechnic products are even more prevalent to ensure reliable product performance. Insulation resistance testing of pyrotechnic products requires wire connection work; for double-bridge pyrotechnic products, such as... Figure 1 and Figure 2 As shown, for each product to be tested, the foot-to-shell insulation resistance needs to be tested using an insulation resistance tester. Figure 1 This includes the insulation resistance between the casing (3, pin A, and pin B), the insulation resistance between the two bridges and the product casing, and the pin-to-pin insulation resistance (pin A and pin B), i.e., the insulation resistance between the two bridges. Figure 2 This would involve replacing the wires.
[0003] Currently, when testing the insulation resistance of pyrotechnic items on Shuangqiao Road, please refer to... Figure 3 The wire switching operation is performed by disconnecting / connecting alligator clips. The steps for switching between the foot-to-shell insulation resistance circuit and the foot-to-foot insulation resistance circuit are as follows: First, disconnect the alligator clips (A8 and B9) connected to connection point A6. Then, disconnect the alligator clip (C10) at connection point B7. Connect one of alligator clips A8 and B9 to connection point A6, and the other to connection point B7. Alligator clip C10 is left unconnected. During wire switching, the operator must repeatedly confirm that the alligator clips and the positive and negative terminals of the insulation resistance meter are correctly connected. Before the switching operation, it must be confirmed that the insulation resistance meter is in a discharged state. Before and after the switching, the alligator clip connections must be exposed, ensuring that they do not contact each other or other metal parts. This operating method can lead to low work efficiency, unreliable connections, errors during connection, and short circuits. Incorrect connections or short circuits may result in repeated product testing, accidental fires, and other consequences. Summary of the Invention
[0004] The purpose of this invention is to provide a pyrotechnic insulation resistance tester with an adapter box to solve the above-mentioned problems.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a pyrotechnic insulation resistance tester with an adapter box, including an insulation resistance tester and an adapter box. The adapter box is equipped with a switch and terminals. The switch controls the positive and negative polarity switching of the terminals. One end of each terminal is connected to the positive and negative terminals of the insulation resistance tester, and the other end is connected to the casing, pin A, and pin B of the product to be tested.
[0006] As a preferred technical solution, there are three switches, namely switch A, switch B and switch C. Switch A is set on the connection line between the positive terminal of the insulation resistance tester and pin A of the product under test. Switch B is set on the connection line between pins A and B of the product under test. Switch C is a three-pin two-position toggle switch, set on the connection line between the negative terminal of the insulation resistance tester and the casing of the product under test, and is connected to pin B of the product under test.
[0007] As a further preferred technical solution, the switch wiring is coated with silicone rubber for protection.
[0008] As a preferred technical solution, the material of the adapter box body is ABS.
[0009] As a further preferred technical solution, silicone gel is injected into the lower 1 / 2 to 3 / 4 of the box body to increase its weight.
[0010] The structure of this application uses a toggle switch instead of the traditional alligator clip disconnect / connect method, which solves the problems of unreliability, error-proneness and potential short circuits of the alligator clip connection method. It also solves the problem of low work efficiency caused by the need for personnel to repeatedly confirm whether the connection is correct. Moreover, the plug-in method ensures that there is no exposed metal at the joint, which further enhances safety. Silicone gel is poured into the bottom of the box to increase its weight and ensure that the box is relatively fixed when the toggle switch is turned, and will not cause large displacement or flipping.
[0011] Compared with the prior art, the advantages of this utility model are: this utility model achieves no external metal exposure, and has the advantages of high safety performance, convenient operation, high efficiency, good reliability and high practicality, and has broad application prospects. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the foot-to-shell insulation resistance test in the prior art;
[0013] Figure 2 This is a schematic diagram of a foot-to-foot insulation resistance test in the prior art.
[0014] Figure 3 Schematic diagram of existing technology for testing product insulation resistance without using an adapter box
[0015] Figure 4 This is a schematic diagram illustrating the use of an adapter box to test the insulation resistance of a product according to this utility model.
[0016] In the diagram: 1. Insulation resistance tester; 2. Product to be tested; 3. Tube shell; 4. Pin A; 5. Pin B; 6. Connection point A; 7. Connection point B; 8. Alligator clip A; 9. Alligator clip B; 10. Alligator clip C; 11. Adapter box; 12. Switch A; 13. Switch B; 14. Switch C. Detailed Implementation
[0017] The present invention will be further described below with reference to the embodiments.
[0018] Example:
[0019] See Figure 4 A pyrotechnic insulation resistance tester with an adapter box includes an insulation resistance tester 1 and an adapter box 11. The adapter box 11 is provided with a switch and terminals. The switch controls the positive and negative polarity switching of the terminals. One end of the terminal is connected to the positive and negative terminals of the insulation resistance tester 1, and the other end is connected to the casing 3, pin A 4 and pin B of the product to be tested 2.
[0020] In this embodiment, there are three switches: switch A12, switch B13, and switch C14. Switch A12 is located on the connection line between the positive terminal of the insulation resistance tester 1 and pin A4 of the product under test 2. Switch B13 is located on the connection line between pin A4 and pin B5 of the product under test 2. Switch C14 is a three-pin, two-position toggle switch located on the connection line between the negative terminal of the insulation resistance tester 1 and the casing 3 of the product under test 2, and is connected to pin B5 of the product under test 2. The switch wiring is coated with silicone rubber for protection.
[0021] In this embodiment, the adapter box is made of ABS, and silicone gel is injected into the lower 1 / 2 to 3 / 4 of the box to increase its weight.
[0022] In this embodiment, the insulation resistance tester 1 and the product under test 2 are connected through an adapter box 11. Switch A12 is the main switch of the control circuit; when switch B13 is closed, pin 5 of B is connected to the positive terminal, and when it is open, it is an open circuit; when switch C14 is connected to point a, the casing 3 is connected to the negative terminal; when switch C14 is connected to point b, pin 5 of B is connected to the negative terminal.
[0023] Based on the above description of the working principle of the adapter box:
[0024] 1. With switch A12 open, the test circuit is in an open-circuit state, ensuring the safety of the product when connected to the circuit;
[0025] 2. With switch B13 closed, switch C14 connected to a, and switch A12 closed, the product's pin-to-casing insulation resistance is tested. Through design optimization, switches B13 and C14 are simultaneously in the upward position at this time.
[0026] 3. With switch B13 open and switch C14 connected to b, switch A12 is closed to test the pin-to-pin insulation resistance of the product. After design optimization, switches B13 and C14 are simultaneously in the downward position at this time.
[0027] 4. After each test step is completed, disconnect switch A12 to ensure that the test circuit is open, and remove or replace the product to be tested.
[0028] Based on the above, the switching method of this application is as follows: circuit switching is achieved simply and effectively by using a toggle switch; this avoids problems such as unreliable connections at the connectors and errors during connection, ensuring the safety of product connection, handling, and replacement.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for testing the insulation resistance of pyrotechnic components with an adapter box, comprising an insulation resistance tester, characterized in that, It also includes an adapter box, which is equipped with a switch and terminals. The switch controls the switching of the positive and negative terminals of the terminals. One end of each terminal is connected to the positive and negative terminals of the insulation resistance tester, and the other end is connected to the casing, pin A, and pin B of the product to be tested.
2. The pyrotechnic insulation resistance testing device with adapter box according to claim 1, characterized in that, There are three switches: switch A, switch B, and switch C. Switch A is located on the connection line between the positive terminal of the insulation resistance tester and pin A of the product under test. Switch B is located on the connection line between pins A and B of the product under test. Switch C is a three-pin, two-position toggle switch located on the connection line between the negative terminal of the insulation resistance tester and the casing of the product under test, and is connected to pin B of the product under test.
3. The pyrotechnic insulation resistance testing device with adapter box according to claim 2, characterized in that, The switch wiring is coated with silicone rubber for protection.
4. The pyrotechnic insulation resistance testing device with adapter box according to claim 1, characterized in that, The adapter box is made of ABS material.
5. The pyrotechnic insulation resistance testing device with adapter box according to claim 4, characterized in that, Silicone gel was poured into the lower 1 / 2 to 3 / 4 of the box to increase its weight.