Resistance testing tool

Abstract

The utility model discloses a resistance testing tool, which comprises a base, two load clamping pieces and two testing clamping pieces, a bearing part is arranged on the upper side of the base and is used for placing a product to be tested, and the two load clamping pieces and the two testing clamping pieces are arranged on the upper side of the base and are used for downwards contacting the product to be tested. Wherein the load clamping piece has a structure which can elastically deform in the vertical direction, so that the load clamping piece can elastically press and touch the to-be-tested product downwards. According to the utility model, as the load clamping piece and the test clamping piece can be directly contacted with the product to be tested without welding, the preparation time before testing is greatly reduced, the test efficiency is improved, the use of welding flux is avoided, and the cost of consumables is reduced. In addition, the elastic structure of the load clamping piece enables the resistance test work to be suitable for to-be-tested products of different sizes, has good universality, ensures reliable contact between the load clamping piece and the to-be-tested products, reduces the situation of poor contact, and improves the reliability of a test result.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, in particular to a resistance testing tool. Background Art

[0002] In the production of resistor products, resistance testing and load testing are often involved after the product is mounted on the board. During the test, it is often necessary to weld the PCB test board at both the output end and the detection end to ensure conduction between the test equipment and the sample to be tested. There are two main problems in this process. One is that the process consumes a lot of solder, which leads to high cost of test consumables. The other is the inconvenience in operation. When the number of tests is relatively large, the time loss caused by frequent disassembly and welding actions is relatively high. Utility Model Content

[0003] The utility model aims to provide a resistance testing tool which can improve the testing efficiency and reduce the cost of consumables.

[0004] In order to solve the above technical problems, the utility model provides a resistance testing tool, comprising:

[0005] A base, the base is made of insulating material, a bearing portion is provided on the upper side of the base, and the bearing portion is used to place the product to be tested;

[0006] A load clip is installed on the upper side of the base and is used to connect the power supply. Two load clips are provided. Each load clip includes a mounting end and a load end which are sequentially distributed from top to bottom. The mounting end is connected and fixed to the base. The load end is at least partially located directly above the bearing portion and is used to press downwardly against the product to be tested. The load clip has a structure that can be elastically deformed in the up and down directions; and

[0007] A test clip is installed on the upper side of the base and is used to connect to the test equipment. Two test clips are provided, and each test clip is used to contact the product to be tested downward.

[0008] In one embodiment, each of the mounting ends is located at the rear of the load-bearing portion, and each of the load clips includes a mounting section, a turning section, and a load section that are adjacent to and intersecting each other from back to front, and the mounting section, the turning section, and the load section are metal sheets, respectively. The mounting section and the load section extend in a horizontal direction, and the mounting section is located above the load section. The turning section extends obliquely from top to bottom, and the end of the mounting section away from the turning section constitutes the mounting end, and the bottom end side of the load section constitutes the load end.

[0009] In one embodiment, the angles between the turning section and the load section, and the angles between the turning section and the installation section are acute angles.

[0010] In one embodiment, the load section is arranged in a wave shape to form a plurality of protrusions and a plurality of recesses on the bottom end side thereof, and the plurality of protrusions and the plurality of recesses are arranged alternately.

[0011] In one embodiment, the plurality of protrusions and the plurality of recesses are arranged alternately in the front-to-back direction.

[0012] In one embodiment, the load clip is made of brass.

[0013] In one embodiment, the bearing portion is a groove arranged on the upper side of the base, the length direction of the groove extends laterally and has an opening toward the front side of the base, the two load clips are arranged at intervals in the laterally, and the two test clips are arranged at intervals in the laterally and are both located between the two load clips.

[0014] In one embodiment, each of the load clips and each of the test clips are mounted on the base in a horizontally adjustable manner.

[0015] In one embodiment, the base is provided with two first adjustment grooves extending laterally in the up-down direction, and the two load clips are respectively and one-to-one arranged in the two first adjustment grooves through first fixing members and are laterally positionally adjustable, and each of the first fixing members includes a first screw and a first gasket, and the first screw is sequentially passed through the corresponding mounting end and the first adjustment groove, and the first gasket is clamped between the corresponding mounting end and the first adjustment groove.

[0016] In one embodiment, the base is provided with two second adjustment grooves extending in the front-to-back direction in the up-down direction, and the two test clips are respectively and one-to-one arranged in the two second adjustment grooves through second fixing members and are positionally adjustable in the front-to-back direction, and each second fixing member includes a second screw and a second gasket, and the second screw is sequentially passed through the corresponding test clip and the second adjustment groove, and the second gasket is clamped between the corresponding test clip and the second adjustment groove.

[0017] The technical solution provided by the utility model has the following advantages:

[0018] The resistance testing tool provided by the utility model includes a base made of insulating material, two load clips and two test clips. A bearing portion is provided on the upper side of the base for placing the product to be tested. The two load clips and two test clips are installed on the upper side of the base and are used to touch the product to be tested downward. The load clip is connected to the power supply to provide voltage to the product to be tested, while the test clip is used to connect the test equipment to read the current of the product to be tested. The load clip has a structure that can be elastically deformed in the up and down directions, so that it can elastically press the product to be tested downward. The resistance testing tool provided by the utility model greatly reduces the preparation time before the test, improves the test efficiency, avoids the use of solder, and reduces the cost of consumables because the load clip and the test clip can directly contact the product to be tested without welding. In addition, the elastic structure of the load clip allows the resistance test work to adapt to products to be tested of different sizes, has good versatility, and at the same time ensures reliable contact between the load clip and the product to be tested, reduces the situation of poor contact, and improves the reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of an embodiment of a resistance testing tool provided by the utility model;

[0021] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the medium load clip;

[0022] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the middle base;

[0023] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the medium resistance test tooling from another perspective;

[0024] Figure 5 for Figure 1 Schematic diagram of the three-dimensional structure decomposition of the medium resistance test tooling.

[0025] Description of reference numerals:

[0026] 100-resistance test fixture; 10-base; 11-bearing part; 111-opening; 20-load clip; 210-mounting end; 220-load end; 21-mounting section; 22-turning section; 23-load section; 231-raised part; 232-recessed part; 30-test clip; 40-first adjustment slot; 41-first fixing member; 411-first screw; 412-first gasket; 50-second adjustment slot; 51-second fixing member; 511-second screw; 512-second gasket; 200-product to be tested; 201-circuit board; 202-resistor body. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0029] See also Figures 1 to 5 The utility model provides a resistance testing tool 100 for detecting the resistance value of a product 200 to be tested. Figure 5 The product to be tested 200 may generally include a circuit board 201 and a resistor 202, wherein the resistor 202 is an electronic component arranged on the circuit board 201, two load contacts for supplying voltage to the resistor 202 are formed on the circuit board 201, and two test contacts for sampling current are formed on the resistor 202.

[0030] In one embodiment, the resistance test fixture 100 includes a base 10 made of an insulating material, two load clips 20 and two test clips 30. The shape and structure of the base 10 are not limited, and a bearing portion 11 is provided on the upper side thereof for placing the product to be tested 200. The bearing portion 11 serves to position the product to be tested 200, so that the two load clips 20 and the two test clips 30 can accurately contact the product to be tested 200. Specifically, it can be a bearing platform protruding from the upper side of the base 10, or it can be a groove concavely arranged on the upper side of the base 10.

[0031] In one embodiment, see Figure 3The bearing part 11 is a groove arranged on the upper side of the base 10, the length direction of the groove extends in the horizontal direction, and has an opening 111 facing the front side of the base 10, so that the bearing part 11 can accommodate various sizes of products 200 to be tested whose horizontal dimensions are smaller than the horizontal width of the groove. The opening 111 on the front side of the groove makes the size of the product 200 to be tested in the front and rear directions unrestricted, and the bearing part 11 has better versatility. In addition, the product can also be inserted into the groove from the front side, which is easy to operate and avoids the need to adjust the position of the load clip 20 or the test clip 30 every time the product 200 to be tested is replaced.

[0032] It should be noted that the description of directionality in the present invention is applicable to the resistance test fixture 100 in a normal test state, and is not applicable to its production, assembly, transportation, etc. The up-down direction is roughly parallel to the gravity extension direction, the front-back direction and the lateral direction are perpendicular to the up-down direction, and are perpendicular to each other. Specifically, the front-back direction and the lateral direction are roughly parallel to the horizontal direction.

[0033] Furthermore, two load clips 20 and two test clips 30 are installed on the upper side of the base 10 and are used to contact the product to be tested 200 downward. The load clip 20 is used to connect the power supply and contact the load contact to provide voltage to the product to be tested 200, while the test clip 30 is used to connect the multimeter, volt-ampere meter and other test equipment and contact the test contact to read the current of the product to be tested 200.

[0034] See also Figure 2 Each of the load clips 20 includes a mounting end 210 and a load end 220 which are sequentially distributed from top to bottom. The mounting end 210 is connected and fixed to the base 10. The load end 220 is at least partially located directly above the bearing portion 11 and is used to press downwardly on the product to be tested 200. The load clip 20 has a structure that can be elastically deformed in the up and down directions, so that it can elastically press downwardly on the product to be tested 200.

[0035] The resistance test fixture 100 provided by the utility model can directly contact the product 200 to be tested because the load clip 20 and the test clip 30 can be directly connected without welding, which greatly reduces the preparation time before the test, improves the test efficiency, avoids the use of solder, and reduces the cost of consumables. In addition, the elastic structure of the load clip 20 allows the resistance test work to adapt to the products 200 to be tested of different sizes, has good versatility, and ensures reliable contact between the load clip 20 and the product 200 to be tested, reduces the situation of poor contact, and improves the reliability of the test results.

[0036] For further information, please refer to Figure 2, each of the mounting ends 210 is located at the rear of the load-bearing portion 11, and each of the load clips 20 includes a mounting section 21, a turning section 22, and a load section 23, which are adjacent and intersectingly arranged from the back to the front. The mounting section 21, the turning section 22, and the load section 23 are metal sheets. The mounting section 21 and the load section 23 extend in the horizontal direction, and the mounting section 21 is located above the load section 23. The turning section 22 extends obliquely from top to bottom. The end of the mounting section 21 away from the turning section 22 constitutes the mounting end 210, and the bottom end side of the load section 23 constitutes the load end 220. In this embodiment, the mounting section 21 extends in the horizontal direction and is fixed to the base 10 to constitute the mounting end 210, and the load section 23 is partially located just above the load-bearing portion 11, and its lower end side constitutes the load end 220, and is used to press the load contact below. The mounting section 21 and the load section 23 arranged up and down are connected by the inclined extending turning section 22, so that the load clip 20 has a structure that can be elastically deformed in the up and down directions. Not only does the load clip 20 have a certain elasticity in the up and down directions and can adapt to the height difference of the product 200 to be tested, but it can also use downward pressure to ensure good contact with the product 200 to be tested, thereby improving the accuracy and reliability of the test.

[0037] Preferably, the angles between the turning section 22 and the load section 23, and between the turning section 22 and the mounting section 21 are designed to be acute angles. This structural design enables the load clamp 20 to provide more solid support when contacting the product 200 to be tested, reduces test errors caused by poor contact, and improves the reliability and accuracy of the test.

[0038] Please continue reading Figure 2 Preferably, the load section 23 of the load clip 20 is arranged in a wave shape, and the bottom end side is composed of a plurality of protrusions 231 and a plurality of recesses 232, and these protrusions 231 and recesses 232 are arranged alternately. Preferably, the protrusions 231 and recesses 232 are arranged alternately in the front-to-back direction. This wave-like design enables the load section 23 to have a certain ability to deform up and down when the surface of the product 200 to be tested is uneven. Compared with a flat structure, it can better fit the product 200 to be tested, avoid poor contact caused by local warping, and ensure the stability and accuracy of the test. At the same time, this design also enables the resistance testing tool 100 to adapt to products 200 to be tested of more shapes and sizes, thereby improving its versatility and practicality.

[0039] Optionally, the material of the load clamp 20 is brass, because brass has excellent electrical conductivity and good mechanical properties. At the same time, brass is harder than copper, which can prevent the load clamp 20 from deforming and becoming inelastic after a long period of clamping, resulting in poor contact.

[0040] Based on the above examples, please continue to refer to Figure 4 and Figure 5 In this embodiment, each load clip 20 and each test clip 30 are mounted on the base 10 in an adjustable manner in the horizontal direction. This design brings extremely high flexibility to the resistance test fixture 100. Regardless of the size of the product 200 to be tested, the fixture can be quickly adjusted to ensure accurate contact between its load contacts and test contacts, thereby improving the versatility and flexibility of the resistance test fixture 100.

[0041] Specifically, see Figures 3 to 5 The base 10 is provided with two first adjustment slots 40 extending in the horizontal direction in the vertical direction. The two load clips 20 are respectively and one by one correspondingly arranged in the two first adjustment slots 40 through first fixing members 41, and the positions thereof can be adjusted in the horizontal direction. Each first fixing member 41 includes a first screw 411 and a first gasket 412. The first screw 411 is sequentially arranged through the corresponding mounting end 210 and the first adjustment slot 40, and the first gasket 412 is arranged between the corresponding mounting end 210 and the first adjustment slot 40. Specifically, the screw head of the first screw 411 is clamped on the upper side of the screw hole on the mounting end 210, and the load clip 20 and the base 10 are cushioned by the first gasket 412. By adjusting the tightness of the first screw 411, the position of each load clip 20 in the horizontal direction can be quickly adjusted. The operation is simple and quick, so that the position of the load clip 20 can adapt to the specific position of the load contact on the product 200 to be tested, and the adjustment efficiency and accuracy of the resistance test fixture 100 are improved.

[0042] Specifically, see Figures 3 to 5 The base 10 is provided with two second adjustment slots 50 extending in the front-to-back direction along the up-down direction. The two test clips 30 are respectively arranged in the two second adjustment slots 50 through the second fixing members 51 in a one-to-one correspondence and adjustable in the front-to-back direction. Each second fixing member 51 includes a second screw 511 and a second gasket 512. The second screw 511 is sequentially passed through the corresponding test clip 30 and the second adjustment slot 50. The second gasket 512 is sandwiched between the corresponding test clip 30 and the second adjustment slot 50. Specifically, the screw head of the second screw 511 is clamped on the upper side of the screw hole on the test clip 30, and the test clip 30 and the base 10 are sandwiched by the second gasket 512. By adjusting the tightness of the second screw 511, the position of the test clip in the front-to-back direction can be quickly adjusted. The operation is simple and quick, so that the position of the test clip 30 can adapt to the specific position of the test contact on the product 200 to be tested, and the adjustment efficiency and accuracy of the resistance test fixture 100 are improved.

[0043] Obviously, the above described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, ordinary technicians in this field can make other different forms of changes or modifications without creative work, which should fall within the scope of protection of the utility model.

Claims

1. A resistance testing tool, characterized in that: include: A base, the base is made of insulating material, a bearing portion is provided on the upper side of the base, and the bearing portion is used to place the product to be tested; A load clip is installed on the upper side of the base and is used to connect the power supply. Two load clips are provided. Each load clip includes a mounting end and a load end which are sequentially distributed from top to bottom. The mounting end is connected and fixed to the base. The load end is at least partially located directly above the bearing portion and is used to press downward on the product to be tested. The load clip has a structure that can be elastically deformed in the up and down directions. as well as, A test clip is installed on the upper side of the base and is used to connect to the test equipment. Two test clips are provided, and each test clip is used to contact the product to be tested downward.

2. The resistance testing tool as claimed in claim 1, characterized in that: Each of the mounting ends is located at the rear of the bearing portion, and each of the load clips includes a mounting section, a turning section and a load section which are adjacent to and intersecting each other from the back to the front, and the mounting section, the turning section and the load section are metal sheets, respectively, and the mounting section and the load section extend in a horizontal direction, and the mounting section is located above the load section, and the turning section extends obliquely from top to bottom, and the end of the mounting section away from the turning section constitutes the mounting end, and the bottom end side of the load section constitutes the load end.

3. The resistance testing tool as claimed in claim 2, characterized in that: The angles between the turning section and the load section, and the angles between the turning section and the installation section are acute angles.

4. The resistance testing tool as claimed in claim 3, characterized in that: The load section is arranged in a wave shape to form a plurality of protrusions and a plurality of recesses on the bottom end side thereof, and the plurality of protrusions and the plurality of recesses are arranged alternately.

5. The resistance testing tool as claimed in claim 4, characterized in that: The plurality of protrusions and the plurality of recesses are arranged alternately in the front-to-back direction.

6. The resistance testing tool as claimed in any one of claims 2 to 5, characterized in that: The material of the load clip is brass.

7. The resistance testing tool according to any one of claims 2 to 5, characterized in that: The bearing portion is a groove arranged on the upper side of the base, the length direction of the groove extends laterally and has an opening toward the front side of the base, the two load clips are arranged at intervals in the laterally, and the two test clips are arranged at intervals in the laterally and are both located between the two load clips.

8. The resistance testing tool as claimed in claim 7, characterized in that: Each of the load clips and each of the test clips are respectively mounted on the base in a horizontally adjustable manner.

9. The resistance testing tool as claimed in claim 8, characterized in that: The base is provided with two first adjustment grooves extending laterally in the up-down direction, and the two load clips are respectively and one-to-one arranged in the two first adjustment grooves through first fixing members and are laterally position-adjustable, and each of the first fixing members includes a first screw and a first gasket, and the first screw is sequentially passed through the corresponding mounting end and the first adjustment groove, and the first gasket is clamped between the corresponding mounting end and the first adjustment groove.

10. The resistance testing tool as claimed in claim 8, characterized in that: The base is provided with two second adjustment grooves extending in the front-to-back direction along the up-down direction, and the two test clips are respectively and one-to-one arranged in the two second adjustment grooves through second fixing parts and can be adjusted in the front-to-back direction. Each second fixing part includes a second screw and a second gasket, and the second screw is sequentially passed through the corresponding test clip and the second adjustment groove, and the second gasket is clamped between the corresponding test clip and the second adjustment groove.

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