Inductor resistance test fixture

Abstract

The utility model discloses an inductor resistance value test fixture, which comprises a supporting seat for bearing an inductor and a pressing assembly for pressing the inductor, the pressing assembly and the supporting seat are arranged up and down, the supporting seat is provided with a bearing groove for limiting the inductor, an elastic piece for elastically abutting against an electrode area of the inductor is arranged in the bearing groove, and the elastic piece is provided with a clamping groove for clamping the inductor. During testing, the pressing head portion of the pressing assembly applies pressure to the inductor located in the bearing groove, so that the electrode area of the inductor and the telescopic end of the elastic piece are stably connected in an abutting mode, and then stable electric connection arrangement is formed. Therefore, a tester can be prevented from testing the inductance resistance through a test clamp of a handheld resistance tester, so that the stability of the inductance resistance test is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to inductance test technical field, especially inductance resistance value test fixture. BACKGROUND

[0002] Generally, in order to avoid the poor product to flow out, the inductance resistance value needs to be detected before the inductance is shipped, and since the size of the inductance is small, such as 2.5*2.0mm, the test head of the resistance value tester is usually aligned and pressed on the electrode area of the inductance by manual method, but the pressing force formed by manual method is unstable, which causes the unstable pressure of the test head on the electrode area of the inductance, and easily leads to the large and small inductance resistance value, at this time, the manual test is difficult, and the inductance resistance value test efficiency is also low. UTILITY MODEL CONTENT

[0003] Therefore, the utility model provides an inductance resistance value test fixture, which can avoid the test personnel to test the inductance resistance value by hand holding the test clamp of the resistance value tester, so as to ensure the stability of the inductance resistance value test.

[0004] In order to achieve the above purpose, the utility model provides the technical scheme as follows:

[0005] The utility model provides an inductance resistance value test fixture, which comprises a supporting seat for supporting the inductance and a pressing assembly for pressing the inductance, the pressing assembly and the supporting seat are arranged in an upper and lower manner, the supporting seat has a supporting groove for limiting the inductance, an elastic member for elastically abutting against the electrode area of the inductance is arranged in the supporting groove, and the elastic member has conductivity and a telescopic end which can be telescoped, when testing, the pressure head of the pressing assembly applies pressure to the inductance located in the supporting groove, so that the electrode area of the inductance and the telescopic end of the elastic member form stable abutment, and then a stable electrical connection is formed.

[0006] Further, the elastic member is a spring needle, the spring needle has a telescopic needle head, and the needle head is the telescopic end of the elastic member.

[0007] Further, the supporting seat has an electrical connection port for connecting the resistance value tester, and one end of the elastic member away from the telescopic end is respectively electrically connected to the positive and negative poles of the electrical connection port.

[0008] Further, the number of the elastic members is four; the support seat has a mounting cavity, the electric connection port is assembled on the side wall of the mounting cavity, the receiving groove is located on the top wall of the mounting cavity, the bottom of the receiving groove is provided with a mounting groove for mounting the elastic member, the elastic members are symmetrically arranged on both sides of the bottom of the mounting groove, one end of the elastic member away from the telescopic end penetrates through the top wall of the mounting cavity, and the positive and negative poles of the electric connection port are respectively electrically connected through wires.

[0009] Further, the pressing assembly is assembled on the support seat through a support, the pressing head of the pressing assembly is arranged in a liftable manner, and the pressing head of the pressing assembly corresponds to the receiving groove.

[0010] Further, the pressing assembly comprises a first connecting piece, a second connecting piece, a pressing rod, a driving piece and a pressing head, the support has a guide piece for guiding the pressing rod; the first connecting piece and the second connecting piece are arranged in an upper and lower manner, opposite ends of the first connecting piece and the second connecting piece are respectively rotationally connected with the middle part of the driving piece, one end of the first connecting piece away from the second connecting piece and one end of the driving piece towards the support are respectively rotationally connected with the support, one end of the second connecting piece away from the first connecting piece is rotationally connected with the pressing rod, one end of the pressing rod away from the second connecting piece slidably penetrates through the guide piece and is fixed with the pressing head; the pressing head is the pressing head of the pressing assembly.

[0011] Further, the pressing head is a plastic pressing head, and one side of the pressing head towards the support is a plane.

[0012] The technical scheme has the following beneficial effects:

[0013] The pressing head of the pressing assembly applies pressure to the inductor located in the receiving groove, and the telescopic end of the elastic member elastically abuts against the electrode area of the inductor, so that the electrode area of the inductor and the telescopic end of the elastic member form stable abutment, the pressure between the electrode area of the inductor and the telescopic end of the elastic member can be kept stable, and stable electrical connection is formed, so as to avoid that the tester tests the inductor resistance value by using the test clamp of the resistance tester, thereby ensuring the stability of the inductor resistance value test, reducing the test difficulty of the inductor resistance value, and effectively improving the inductor resistance value test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Fig. 1 shows a schematic diagram of an inductor in an embodiment;

[0015] Figure 2 Fig. 1 shows a schematic diagram of an inductor in an embodiment;

[0016] Figure 3 The figure shows a cross-sectional view of the inductance resistance test fixture in the embodiment;

[0017] Figure 4 Shown is an exploded view of the pressing assembly in an embodiment. DETAILED DESCRIPTION

[0018] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0019] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.

[0020] Reference Figure 2 and Figure 3 As shown, this embodiment provides an inductor resistance test fixture, including a support base 2 for supporting an inductor 1 and a support for pressing Figure 1 The pressing component 3 of the inductor 1 shown is arranged in an upper and lower position with the support base 2. The support base 2 has a receiving groove 21 for limiting the inductor 1 and an electrical connection port for an external resistance tester. An elastic member 22 for elastically abutting the electrode area 11 of the inductor 1 is provided in the receiving groove 21, and the elastic member 22 has conductivity and a retractable telescopic end. The end of the elastic member 22 facing away from the telescopic end is electrically connected to the positive and negative poles of the electrical connection port respectively. During testing, the pressure head of the pressing component 3 applies pressure toward the inductor 1 located in the receiving groove 21 to form a firm abutment between the electrode area 11 of the inductor 1 and the telescopic end of the elastic member 22, thereby forming a stable electrical connection setting.

[0021] In this embodiment, the pressing component 3 is assembled on the support base 2 through the bracket 4. The pressing head of the pressing component 3 is arranged to be liftable, and the pressing head of the pressing component 3 corresponds to the receiving groove 21 to ensure that the pressing head of the pressing component 3 can accurately press the inductor 1 located in the receiving groove 21 when pressing down.

[0022] Specifically, the elastic member 22 is a spring needle having a retractable needle head, which is the retractable end of the elastic member 22 .

[0023] By matching the size of the receiving slot 21 with the size of the inductor 1 , the smaller inductor 1 can be confined within the receiving slot 21 , thereby further reducing the difficulty of resistance testing of the smaller inductor 1 .

[0024] By applying pressure to the inductor 1 located in the receiving groove 21 by the pressure head of the pressing component 3 and elastically abutting the electrode area 11 of the inductor 1 with the telescopic end of the elastic member 22, a stable abutment is achieved between the electrode area 11 of the inductor 1 and the telescopic end of the elastic member 22. That is, the pressure between the electrode area 11 of the inductor 1 and the telescopic end of the elastic member 22 can be kept stable, thereby forming a stable electrical connection. Then, through the electrical connection between the elastic member 22 and the electrical connection port, an external resistance tester is facilitated, thereby avoiding the tester from testing the inductor resistance through the test clip of the handheld resistance tester, thereby ensuring the stability of the inductor resistance test, reducing the difficulty of testing the inductor resistance, and effectively improving the efficiency of the inductor resistance test.

[0025] Of course, in other embodiments, the electrical connection port may not be required. Instead, one end of the wire may be connected to the elastic member 22 and the other end may be connected to the test clip of the resistance tester. In this way, the inductance resistance test can also be achieved.

[0026] In another preferred embodiment, Figure 3 and Figure 4 As shown, the pressing assembly 3 includes a first connecting member 31, a second connecting member 32, a pressing rod 33, a driving member 34 and a pressing head 35. The bracket 4 has a guide member 41 for guiding the pressing rod 33. The first connecting member 31 and the second connecting member 32 are arranged up and down, and the opposite ends of the first connecting member 31 and the second connecting member 32 are respectively rotatably connected to the middle part of the driving member 34. The end of the first connecting member 31 away from the second connecting member 32 and the end of the driving member 34 toward the support seat 2 are respectively rotatably connected to the bracket 4, and the end of the second connecting member 32 away from the first connecting member 31 is rotatably connected to the pressing rod 33. The end of the pressing rod 33 away from the second connecting member 32 can be slid through the guide member 41 and is fixed with the pressing head 35.

[0027] The first connecting member 31 , the second connecting member 32 , the driving member 34 and the bracket 4 cooperate to drive the pressing rod 33 and the pressing head 35 to rise and fall along the guide direction of the guide member 41 .

[0028] The pressing head 35 is the pressing head part of the pressing assembly 3 , and the upper end of the driving member 34 is provided with a handle for easy grasping by a human hand.

[0029] In this specific embodiment, the pressing head 35 is a plastic pressing head, and the surface of the pressing head 35 facing the support base 2 is a flat surface, so as to ensure that the pressing head 35 does not damage the inductor 1 when pressing the inductor 1 .

[0030] There are four spring needles, each of which includes a conductive needle tube and a spring. The needle head is slidably inserted into the needle tube, and the spring is arranged between the needle head and the needle tube.

[0031] The support base 2 has a mounting cavity, the electric connection port is assembled on one side wall of the mounting cavity, the receiving groove 21 is located on the top wall 23 of the mounting cavity, the groove bottom of the receiving groove 21 is provided with a mounting groove 211 for mounting the elastic member 22, the spring pins are symmetrically arranged on both sides of the groove bottom of the mounting groove 211, the needle tube of the spring pin penetrates through the top wall 23 of the mounting cavity, and the positive and negative poles of the electric connection port are respectively electrically connected through the wires.

[0032] During the test, the test connecting line of the resistance value tester is inserted on the electric connection port of the support base 2, so that the inductance resistance value test fixture of the embodiment is connected to the resistance value tester belonging to the prior art, then the face where the electrode area 11 of the inductor 1 is located is downward and placed in the receiving groove 21 of the support base 2, and at this time, the two electrode areas 11 of the inductor 1 are respectively aligned with the spring pins on both sides of the mounting groove 211, then the driving member 34 is pressed down by hand, so that the pressing rod 33 is driven to descend along the guide direction of the guide member 41, until the pressure head 35 on the pressing rod 33 presses the inductor 1, and at the same time, the inductor 1 applies a force to the spring pins, so that the needle head of the spring pin is elastically abutted on the electrode area 11 of the inductor 1, thereby ensuring that the electrode area 11 of the inductor 1, the spring pin, the wire, the electric connection port, the test connecting line and the resistance value tester form a stable test loop, so as to realize accurate and stable test of the inductance resistance value.

[0033] After the inductance resistance value test is completed, the driving member 34 is lifted upward again, so that the pressure head 35 is lifted, and then the inductor 1 after the test is taken out of the receiving groove 21 of the support base 2.

[0034] Of course, in other embodiments, the pressing assembly 3 can also use a driving assembly containing a motor or a cylinder to drive the pressure head 35 to ascend and descend, and the inductor 1 located in the receiving groove 21 can also be pressed.

[0035] Although the utility model is specifically shown and introduced in combination with the preferred embodiment, it should be understood by those skilled in the art that various changes can be made in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all the changes are within the protection scope of the utility model.

Claims

1. An inductance and resistance test fixture, characterized by: It includes a support base for supporting the inductor and a pressing component for pressing the inductor; The pressing assembly and the support base are arranged in an upper and lower position, and the support base has a receiving groove for limiting the inductor. An elastic member for elastically abutting the electrode area of ​​the inductor is provided in the receiving groove, and the elastic member has conductivity and a retractable telescopic end; During testing, the pressing head of the pressing assembly applies pressure to the inductor located in the receiving groove, so that the electrode area of ​​the inductor and the telescopic end of the elastic member form a stable abutment, thereby forming a stable electrical connection setting.

2. The inductance and resistance test fixture according to claim 1, characterized in that: The elastic member is a spring needle having a retractable needle head, and the needle head is the retractable end of the elastic member.

3. The inductance and resistance test fixture according to claim 1 or 2, characterized in that: The support base has an electrical connection port for externally connecting a resistance tester, and one end of the elastic member away from the telescopic end is electrically connected to the positive and negative poles of the electrical connection port respectively.

4. The inductance and resistance test fixture according to claim 3, characterized in that: The number of elastic members is 4; the support seat has an installation cavity, the electrical connection port is assembled on the side wall of the installation cavity, the receiving groove is located on the top wall of the installation cavity, the bottom of the receiving groove is provided with an installation groove for installing the elastic member, the elastic members are symmetrically distributed on both sides of the bottom of the installation groove, the end of the elastic member facing away from the telescopic end passes through the top wall of the installation cavity, and is electrically connected to the positive and negative poles of the electrical connection port through wires.

5. The inductance and resistance test fixture according to claim 1 or 2, characterized in that: The pressing assembly is assembled on the supporting seat through a bracket. The pressing head portion of the pressing assembly is liftable, and the pressing head portion of the pressing assembly corresponds to the receiving groove.

6. The inductance and resistance test fixture according to claim 5, characterized in that: The pressing assembly includes a first connecting member, a second connecting member, a pressing rod, a driving member and a pressing head, and the bracket has a guide member for guiding the pressing rod; the first connecting member and the second connecting member are arranged in an upper and lower manner, and the opposite ends of the first connecting member and the second connecting member are respectively rotatably connected to the middle part of the driving member, and the end of the first connecting member facing away from the second connecting member and the end of the driving member toward the support seat are respectively rotatably connected to the bracket, and the end of the second connecting member facing away from the first connecting member is rotatably connected to the pressing rod, and the end of the pressing rod facing away from the second connecting member can be slidably passed through the guide member and is fixed with the pressing head; the pressing head is the pressing head part of the pressing assembly.

7. The inductance and resistance test fixture according to claim 6, characterized in that: The pressing head is a plastic pressing head, and a surface of the pressing head facing the supporting seat is a flat surface.

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