CN214427479U

CN214427479U - Electrical test quick change anchor clamps

Info

Publication number: CN214427479U
Application number: CN202022895767.9U
Authority: CN
Inventors: 胡紫阳; 邓小辉; 李智德
Original assignee: Kunshan Industrial Exhibition Electronics Co ltd
Current assignee: Kunshan Industrial Exhibition Electronics Co ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-10-19
Anticipated expiration: 2030-12-03

Abstract

The application discloses electrical property test quick change anchor clamps includes: the base is provided with a positioning area for positioning a piece to be detected; the pressing plate is rotatably connected with the base; the test contact is connected to the pressure plate, the test contact is arranged corresponding to a detection area on the piece to be tested, and the test contact is connected with test equipment; the reset piece is connected between the base and the pressing plate, the pressing plate comprises a first position and a second position, the test contact is abutted against the detection area at the first position, and the test contact is separated from the detection area at the second position; the pressing plate can be driven to change from the first position to the second position by pressing the pressing plate, and after the pressing plate is released, the resetting piece drives the pressing plate to reset from the second position to the first position. Through using the quick change anchor clamps of this application, can make things convenient for quick carry out the electrical test to the piece that awaits measuring.

Description

Electrical test quick change anchor clamps

Technical Field

The application relates to the technical field of test fixtures, in particular to a quick-change fixture for electrical tests.

Background

At present, the electrical performance test of the to-be-tested piece of the electronic and electrical equipment is very necessary, and the reliable and good use performance of the to-be-tested piece can be effectively ensured through the electrical performance test, so that the use requirement of a user can be met. The part to be tested of the electronic and electric appliances can be a shunt resistor, a circuit board (PCBA) or other electronic components, a plurality of detection areas are arranged on the part to be tested, the detection areas are conductive areas electrically connected with an internal circuit of the part to be tested and are used for being electrically connected with signal wires of test equipment, and therefore the test equipment can be used for conducting power-on detection on the electrical performance of the part to be tested.

At present, when testing the electrical performance of a piece to be tested, a plurality of signal wires need to be correspondingly welded to each detection area of the piece to be tested, and after the testing is finished, the welding feet need to be heated to take down the signal wires. The defects of the prior art are that welding operation is required during each test, the requirement on personal ability of staff is high, the efficiency is low, time and labor are wasted, the situation that the test result is influenced by bad welding easily occurs, a standard test process cannot be formed, and a reliable test result can not be obtained.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned technique, this application provides an electrical test quick change anchor clamps, can make things convenient for fast carry out the electrical test to the piece that awaits measuring.

For solving above-mentioned technical problem, this application has provided an electrical test quick change anchor clamps, and it includes:

the base is used for placing a piece to be tested;

the pressing plate is rotatably connected with the base;

the test contact is connected to the pressure plate, the test contact is arranged corresponding to the detection area on the piece to be tested, and the test contact is connected with test equipment;

the reset piece is connected between the base and the pressing plate, the pressing plate comprises a first position and a second position, the test contact is abutted against the detection area at the first position, and the test contact is separated from the detection area at the second position; the pressing plate can be driven to change from the first position to the second position by pressing the pressing plate, and after the pressing plate is released, the resetting piece drives the pressing plate to reset from the second position to the first position.

In addition, the application also provides the following auxiliary technical scheme:

the reset piece is a spring.

The base comprises a bottom plate and a connecting piece connected to the bottom plate, the connecting piece is provided with a rotating shaft, and the pressing plate is connected to the rotating shaft.

The clamp plate is including being located the test end and the end of pressing of pivot both sides, the test contact connect in the test end, the piece that resets connect in press the end.

The number of the pressing plates is multiple, and the pressing plates are connected with each other.

The pressing plate comprises a first pressing plate, a second pressing plate and a third pressing plate, wherein the first pressing plate is located above the second pressing plate and the third pressing plate, and an extending part extending to the upper portion of the second pressing plate and the upper portion of the third pressing plate is arranged on the first pressing plate.

The base is provided with a positioning area for positioning a piece to be measured, and the piece to be measured is placed in the positioning area.

The positioning area is a groove matched with the shape of the piece to be detected.

One end of the groove is communicated with the end face of the base so as to conveniently take and place the piece to be tested.

The base is provided with an avoiding hole communicated with the positioning area, and the avoiding hole is communicated with the end face.

Compared with the prior art, the application has the beneficial effects that: the electric property test quick change anchor clamps of this application only need press the depression bar and can make test contact break away from with the piece that awaits measuring to conveniently change the piece that awaits measuring, and when losing the pressing force, the piece that resets can drive the depression bar and reset, makes test contact and the piece that awaits measuring keep in contact, makes test equipment carry out the electric property test to the piece that awaits measuring, and it is very convenient, swift to use. By the aid of the electric property test quick-change clamp, a test process can be standardized, and manual influence on a test result due to welding is avoided; when the device is used, the operation is simple, the requirement on the capability of personnel is low, welding equipment such as electric soldering irons and the like is not required to be used, the safety is higher, and meanwhile, the efficiency is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:

fig. 1 is a schematic structural view of an electrical test quick-change clamp according to the present application.

Fig. 2 is a schematic structural diagram of the dut in the present application.

Fig. 3 is a schematic structural diagram of a positioning region in the present application.

Fig. 4 is a schematic structural diagram of the device under test in the present application when placed in the positioning area.

Fig. 5 is a schematic top view of the electrical test quick-change fixture of the present application.

Fig. 6 is a schematic view of the first pressing plate and the connecting member connected by a rotating shaft in the present application.

Fig. 7 is a schematic view of the second and third pressing plates and the connecting member connected by a rotating shaft in the present application.

Fig. 8 is a schematic structural diagram of the electrical testing quick-change clamp when the resetting piece is arranged between the pressing plate and the fixing plate in the application.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "comprising" and "having," as well as any variations thereof, in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As shown in fig. 1, the electrical property test quick-change clamp of the present application includes a base 1, a pressure plate 2 rotatably connected to the base 1, a test contact 3 connected to the pressure plate 2, and a reset element 4 for driving the pressure plate 2 to reset.

The base 1 includes a base plate 10 and a coupling member 11 coupled to the base plate 10. A positioning area 12 is provided near the front end of the base plate 10, and the positioning area 12 is used for positioning the object 5. In the present embodiment, the positioning region 12 is provided as a groove conforming to the outer shape of the piece 5 to be measured, and the position thereof is defined when the piece 5 to be measured is disposed in the groove; in other embodiments, the positioning region 12 can also be provided in other forms, such as positioning posts, pins, etc. that are provided to define the position of the test piece 5.

Specifically, as shown in fig. 2 and 3, the dut 5 in this embodiment has a rectangular shape, and accordingly, the positioning area 12 is configured as a rectangular groove, and one end of the groove is communicated with the end surface 100 of the bottom plate 10 to form an access opening 120 for facilitating the placement or removal of the dut 5. That is, the device under test 5 is positioned by the three

sides

121, 122, 123 of the positioning region 12. In order to further facilitate taking and placing the to-be-measured object 5, an avoiding hole 124 is further formed in the positioning area 12, and the avoiding hole 124 is communicated with the end surface 100, so that the to-be-measured object 5 can be conveniently taken and placed by fingers pinching the upper surface and the lower surface.

The connecting member 11 is connected to the base plate 10 and extends above the base plate 10, and the connecting member 11 and the pressing plate 2 are connected by a rotating shaft 13 so that the pressing plate 2 can rotate around the rotating shaft 13. In order to improve the stress performance of the rotating shaft 13, the number of the connecting pieces 11 is two, and the two connecting pieces are respectively connected to two ends of the rotating shaft 13.

The pressing plate 2 comprises a pressing end 20 and a testing end 21 respectively located at two sides of the rotating shaft 13, wherein the testing end 21 is closer to the positioning area 12, and preferably, the testing end 21 is located above the positioning area 12. The test end 21 is fixed with a test contact 3, the test contact 3 is connected with a signal line 30 which is in communication connection with test equipment, and the lower end of the test contact 3 can be abutted against a detection area 50 of the piece to be detected 5, so that the piece to be detected 5 and the test equipment form a loop for detection.

It will be appreciated that the number of test contacts 3 corresponds to the number of test areas 50 on the piece 5 to be tested, and that the position of each test contact 3 also corresponds to the position of each test area 50 on the piece 5 to be tested.

In a possible embodiment, the number of pressure plates 2 is one, and each test contact 3 is arranged on the pressure plate 2 and corresponds to each test area 50 on the piece 5 to be tested. The test contacts 3 are made of an electrically conductive material, such as copper, silver, gold, etc., and in a preferred embodiment, some or all of the test contacts 3 are test pins.

In another possible embodiment, the number of the pressure plates 2 may be plural, and the test contacts 3 may be uniformly or non-uniformly arranged on each pressure plate 2.

In this embodiment, as shown in fig. 2, four detection regions 50 are disposed on the device under test 5, and each detection region 50 includes a conductive layer, such as a copper layer, which can be electrically connected to the test contact 3 when the two regions are in contact with each other. As shown in fig. 5, the number of the pressing plates 2 is three, which are respectively a first pressing plate 2a, a second pressing plate 2b and a third pressing plate 2c, the second pressing plate 2b and the third pressing plate 2c are symmetrically arranged on two sides of the first pressing plate 2a, two test contacts 3 are arranged on the first pressing plate 2a, one test contact 3 is arranged on each of the second pressing plate 2b and the third pressing plate 2c, and the four test contacts 3 correspond to four detection areas 50 of the to-be-detected piece 5.

In this embodiment, as shown in fig. 1, the first pressing plate 2a is located above the second pressing plate 2b and the third pressing plate 2c, and thus, the number of the rotating shafts 13 is two, and the two rotating shafts are respectively a first rotating shaft 13a for connecting the first pressing plate 2a and a second rotating shaft 13b for connecting the second pressing plate 2b and the third pressing plate 2 c.

To position the pressure plates 2 on the shaft, spacers 130 and/or shoulders 131 may be provided on the shaft 13. As shown in fig. 6, on the first rotating shaft 13a, a spacer 130 is provided between the first presser plate 2a and the connecting member 11; as shown in fig. 7, a shoulder 131 is provided on the second rotating shaft 13b between the second presser plate 2a and the third presser plate 2 b.

It is understood that in other embodiments, the plurality of pressing plates 2 (the first pressing plate 2a, the second pressing plate 2b, and the third pressing plate 2 c) are located at the same height position.

The pressure plate 2 comprises a first position in which the test contact 3 is in contact with the detection zone 50 and a second position in which the test contact 3 is out of contact with the detection zone 50. Specifically, when the pressing end 20 of the pressing plate 2 is pressed, the pressing plate 2 rotates clockwise around the rotating shaft 13, and the test contact 3 is out of contact with the detection area 50, which is the second position; when the pressing end 20 is released, the reset element 4 drives the platen 2 to rotate counterclockwise around the rotation shaft 13, so that the test contact 3 contacts the detection area 50, i.e., reaches the first position, that is, the reset element 4 is used to reset the platen 2 to the first position.

The reset piece 4 is preferably a spring, and the pressure plate 2 is reset by the elasticity of the spring. The reset piece 4 is arranged between the base 1 and the pressure plate 2, in a preferred embodiment, the reset piece 4 is arranged between the bottom plate 10 and the pressing end 20 of the pressure plate 2, and the reset piece 4 is in a compressed state, so that the pressure plate 2 is pushed upwards to reset through elastic force; in another preferred embodiment, as shown in fig. 8, the base 1 further includes a fixing plate 14 located above the pressing end 20, and the restoring member 4 is connected between the fixing plate 14 and the pressing end 20 in a stretched state so as to restore by pulling the pressing plate 2 upward by an elastic force. In other embodiments, the reset member 4 may also be disposed at the testing end 21, and the pressure plate 2 is reset by the elastic force.

In order to position the reset piece 4 and prevent the reset piece 4 from falling off and dislocation, positioning holes 22 can be formed in the positions, used for mounting the reset piece 4, of the pressure plate 2, the bottom plate 10, the fixing plate 14 and the like, and the end part of the reset piece 4 is accommodated in the positioning holes 22, so that the position of the reset piece 4 can be limited; in other embodiments, the positioning hole 22 may also be provided in the form of a convex column, and is inserted into the end of the restoring member 4, which can perform the same function.

Obviously, in order to ensure the reliable performance of the test, the base 1 and the pressing plate 2 are made of insulating materials, such as plastic, bakelite, etc.

When the electrical property test quick-change clamp is used, the piece to be tested 5 can be conveniently placed in the positioning area 12 through the taking and placing opening 120 only by pressing the pressing end 20 of the pressing plate 2 to drive the test contact 3 to be lifted; after the pressing plate 2 is loosened, the pressing plate 2 can be automatically reset to the first position under the driving of the reset piece 4, so that the test contact 3 is abutted against the piece to be tested 5, the electrical connection between the piece to be tested 5 and the test equipment is realized, and at the moment, the piece to be tested 5 can be electrically tested through the test equipment. After the test is finished, the test contact 3 can be separated from the to-be-tested piece 5 only by pressing the pressing end 20 of the pressing plate 2, at the moment, the to-be-tested piece 5 can be conveniently taken out, and meanwhile, a new to-be-tested piece 5 can be replaced for testing. The test device is simple and convenient to operate, welding is not needed, the piece to be tested 5 can be quickly connected with the test equipment, the test efficiency is greatly improved, the accuracy and consistency of the test result are improved, and the influence of the welding quality of workers is small.

In the case where the number of the pressing plates 2 is plural, it is desirable to be able to press all the pressing plates 2 down easily, thereby facilitating the operation. At this time, in one embodiment, as shown in fig. 5, the pressing end 20 of the first presser plate 2a located above is provided with an extension 210 extending above the second presser plate 2b and the third presser plate 2c, and when the first presser plate 2a is pressed, the extension 210 is in contact with the second presser plate 2b and the third presser plate 2c, thereby pressing down the second presser plate 2b and the third presser plate 2c simultaneously; in another embodiment, the first press plate 2a, the second press plate 2b and the third press plate 2c may be connected to each other, for example, by a rod, so that when one press plate 2 is pressed, the remaining press plates can be moved simultaneously, and in this embodiment, only one reset piece 4 may be left.

The electric property test quick-change clamp can be suitable for the shunt resistor tested by using the four-wire method, and can also be suitable for other electronic components, such as circuit boards provided with shunt resistors and/or other devices.

The electric property test quick change anchor clamps of this application only need press the depression bar and can make test contact break away from with the piece that awaits measuring to conveniently change the piece that awaits measuring, and when losing the pressing force, the piece that resets can drive the depression bar and reset, makes test contact and the piece that awaits measuring keep in contact, makes test equipment carry out the electric property test to the piece that awaits measuring, and it is very convenient, swift to use. By the aid of the electric property test quick-change clamp, a test process can be standardized, and manual influence on a test result due to welding is avoided; when the device is used, the operation is simple, the requirement on the capability of personnel is low, welding equipment such as electric soldering irons and the like is not required to be used, the safety is higher, and meanwhile, the efficiency is greatly improved.

The above description is only for the purpose of illustrating embodiments of the present invention and is not intended to limit the scope of the present invention, and all modifications, equivalents, and equivalent structures or equivalent processes that can be used directly or indirectly in other related fields of technology shall be encompassed by the present invention.

Claims

1. The utility model provides an electrical property test quick change anchor clamps which characterized in that, it includes:

the base is used for placing a piece to be tested;

the pressing plate is rotatably connected with the base;

2. The electrical test quick-change clamp of claim 1, wherein the return element is a spring.

3. The electrical testing quick-change clamp according to claim 1, wherein the base includes a bottom plate and a connecting member connected to the bottom plate, the connecting member is provided with a rotating shaft, and the pressing plate is connected to the rotating shaft.

4. The electrical test quick-change clamp of claim 3, wherein the pressure plate includes a test end and a press end located on both sides of the rotating shaft, the test contact is connected to the test end, and the reset member is connected to the press end.

5. The electrical test quick-change clamp according to any one of claims 1 to 3, wherein the number of the pressing plates is plural, and the plural pressing plates are connected with each other.

6. The electrical test quick-change clamp of any one of claims 1 to 3, wherein the pressure plate comprises a first pressure plate, a second pressure plate, and a third pressure plate, the first pressure plate being positioned above the second pressure plate and the third pressure plate, the first pressure plate being provided with an extension that extends above the second pressure plate and the third pressure plate.

7. The electrical test quick-change clamp according to any one of claims 1 to 3, wherein the base is provided with a positioning area for positioning a piece to be tested, and the piece to be tested is placed in the positioning area.

8. The electrical test quick-change clamp of claim 7, wherein the positioning area is a groove adapted to the shape of the device under test.

9. The electrical testing quick-change clamp of claim 8, wherein one end of the groove is communicated with the end surface of the base so as to facilitate taking and placing the to-be-tested piece.

10. The electrical property test quick-change clamp according to claim 9, wherein the base is provided with an avoiding hole communicated with the positioning area, and the avoiding hole is communicated with the end surface.