TW202417866A - Inspection socket and inspection device - Google Patents

Abstract

The utility model provides an inspection socket and an inspection device, which can adapt to batteries with multiple sizes. The inspection socket includes a housing and a plurality of plate-shaped probes housed inside the housing. Each probe has a first end portion provided at one end and a second end portion provided at the other end. The plurality of probes include at least one first probe whose first end portion can be in contact with the positive electrode terminal of the battery, and at least one second probe whose first end portion can be in contact with the edge portion of the battery. A first end portion of the second probe extends in a direction intersecting an outer periphery of the battery when viewed in the first direction. A dimension of a first end portion of the second probe in a second direction intersecting the first direction and a thickness direction of the probe is larger than a dimension of an edge portion of the battery in a radial direction.

Description

Check socket and check device

The present disclosure relates to an inspection socket and an inspection device.

Patent document 1 describes a secondary battery inspection device. [Prior art document] [Patent document]

[Patent Document 1] Japanese Patent Publication No. 2000-28692

[The problem that the invention wants to solve]

Generally speaking, in the inspection device including the inspection device of Patent Document 1, a cylindrical spring probe (so-called pogo pin) is used for inspection. However, the pogo pin generally has a small contact diameter and therefore may not be able to handle inspections of batteries of various sizes.

The purpose of this disclosure is to provide an inspection socket and inspection device that can handle batteries of multiple sizes. [Means for solving the problem]

The inspection socket of one form disclosed in the present invention is used for inspecting a battery. The battery has: a positive terminal located at the center of one end in the axial direction; and an annular edge located radially outward relative to the positive terminal and electrically connected to the negative terminal. The inspection socket includes: a housing; and a plurality of plate-shaped probes, each having a first end disposed at one end in a first direction and a second end disposed at the other end in the first direction, and housed in the housing. The plurality of probes include at least one first probe whose first end can contact the positive terminal, and at least one second probe whose first end can contact the edge. When observed along the first direction, the first end extends in a direction intersecting the outer periphery of the battery. The dimension of the first end of the second probe needle in the second direction intersecting the first direction and the thickness direction of the probe needle is greater than the dimension of the edge in the radial direction.

The present invention discloses a type of inspection device including at least one inspection socket of the type described above. [Effect of the invention]

The present disclosure provides a testing socket and a testing device that can handle batteries of various sizes.

An example of the present disclosure is described below with reference to the accompanying drawings. The following description is merely illustrative in nature and is not intended to limit the present disclosure, the application of the present disclosure, or the use of the present disclosure. The drawings are schematic, and the ratios of the dimensions, etc., are not necessarily consistent with the actual ones.

As shown in FIG1 , an inspection socket 1 according to an embodiment of the present disclosure includes a housing 10 and a plurality of plate-shaped probe pins 20 received in the housing. The plurality of probe pins 20 include a first probe pin 21 and a second probe pin 22 .

The inspection socket 1 constitutes, for example, a part of an inspection device for inspecting the battery 100 shown in FIG2 . The battery 100 is roughly cylindrical in shape and has: a positive terminal 101 located at the center of one end in the axial direction (for example, the X direction); and an annular edge 102 (see FIG3 ) located radially outward relative to the positive terminal 101 and electrically connected to the negative terminal. As an example, the positive terminal 101 has a convex shape. The battery 100 is, for example, a lithium-ion battery for an electric vehicle (EV).

In this embodiment, the plurality of probe needles 20 include two first probe needles 21 and two second probe needles 22. Specifically, the plurality of probe needles 20 include: two first probe needle groups 211, 212, each including a first probe needle 21; and two second probe needle groups 221, 222, each including a second probe needle 22. Each probe needle group is electrically independent of each other. The first probe needle group 211 and the second probe needle group 221 function as sense pins, for example, and the first probe needle group 212 and the second probe needle group 222 function as force pins, for example. Each probe needle 20 is formed by a single part.

As shown in FIG1 , the housing 10 is, for example, in a substantially square prism shape, and has a plurality of receiving portions 13 (see FIGS. 4 to 7 ) therein capable of receiving at least one probe 20. Each receiving portion 13 is configured to receive a probe 20 with a first end portion 31 and a second end portion 41 of the probe 20 described later being exposed.

In the present embodiment, the housing 10 includes two components 11 and 12 stacked along a first direction (e.g., X direction) in which the accommodated probe pin 20 extends. A probe pin 20 is accommodated in each accommodating portion 13. Each accommodating portion 13 is formed in such a manner that the thickness direction of the probe pin 20 accommodated in the accommodating portion 13 is consistent. A substantially circular recess 14 is provided on a surface 111 of the component 11 where the first end 31 of the probe pin 20 is exposed. Two openings 112 are provided on the bottom surface of the recess 14 where the first end 31 of the first probe pin 21 is exposed. Two openings 113 are provided on the radially outer side of the recess 14 of the surface 111 where the first end 31 of the second probe pin 22 is exposed. A substrate 110 is mounted on a surface 121 (see FIGS. 4 to 7 ) where the second end 41 of the probe pin 20 of the component 12 is exposed.

As shown in FIGS. 4 to 7 , the probe needle 20 has a first end 31 disposed at one end in the first direction X, and a second end 41 disposed at the other end in the first direction X. In the present embodiment, the probe needle 20 includes: a first contact portion 30 having the first end 31; a second contact portion 40 having the second end 41; and an elastic portion 50 located between the first contact portion 30 and the second contact portion 40 in the first direction X and capable of stretching and contracting along the first direction X. The first contact portion 30 and the second contact portion 40 are located on an imaginary straight line L extending along the first direction X, and are connected by the elastic portion 50. That is, the first contact portion 30 and the second contact portion 40 are located at one end of the elastic portion 50 in a second direction (e.g., Y direction) intersecting the first direction X and the thickness direction (e.g., Z direction) of the probe needle 20.

The first contact portion 30 has a substantially rectangular plate shape extending along the first direction X. An end of the first contact portion 30 located away from the second contact portion 40 in the first direction X constitutes a first end portion 31. The elastic portion 50 is connected from the second direction Y to an end of the first contact portion 30 located near the second contact portion 40 in the first direction X.

As shown in Fig. 3, in this embodiment, when viewed along the first direction X, the first end 31 of the second probe needle extends in a direction intersecting the outer periphery 103 of the battery 100. The dimension W1 of the first end 31 of the second probe needle 22 in the second direction Y is larger than the dimension W2 of the edge 102 of the battery 100 in the radial direction.

The first end 31 of the first probe needle 21 is configured to be able to contact the positive terminal 101 of the battery 100, and the first end 31 of the second probe needle 22 is configured to be able to contact the edge 102 of the battery 100. In detail, as shown in FIG. 4 and FIG. 5, the first end 31 of the first probe needle 21 has an inclined surface 32, and the inclined surface 32 is inclined in the first direction X as it moves away from the center line CL of the housing 10 extending in the first direction X in the second direction Y and approaches the second contact portion 40. As shown in FIG. 6 and FIG. 7, the first end 31 of the second probe needle 22 has a concave-convex surface 33 formed with a plurality of concave and convex parts. By configuring the first end 31 in this way, the first probe needle 21 and the second probe needle 22 can be respectively made into point contact with the battery 100.

The second contact portion 40 has a substantially rectangular plate shape extending along the first direction X. The length of the second contact portion 40 in the first direction X is shorter than that of the first contact portion 30. The end of the second contact portion 40 located at a position away from the first contact portion 30 in the first direction X constitutes a second end portion 41. The elastic portion 50 is connected from the second direction Y to the end of the second contact portion 40 located near the first contact portion 30 in the first direction X.

In this embodiment, as shown in FIG. 3 , a plurality of second probe needles 22 are housed in the housing 13 of the housing 10 in a state where they can contact the edge 102 of the battery 100 .

The second end 41 of the first probe needle 21 and the second probe needle 22 is configured to be able to contact the terminal of the substrate 110. In detail, as shown in Figures 4 to 7, the second end 41 of the first probe needle 21 and the second probe needle 22 has an inclined surface 42, and the inclined surface 42 is inclined in the direction of approaching the first contact portion 30 in the first direction X as it moves away from the center line CL in the second direction Y. By configuring the second end 41 in this way, the first probe needle 21 and the second probe needle 22 can be respectively in point contact with respect to the substrate 110.

The elastic portion 50 has a plurality of first portions 51 and a plurality of second portions 52. The first portions 51 are arranged at intervals along the first direction X and extend linearly along the second direction Y. The second portions 52 have a substantially semicircular arc shape extending along the first direction X, and both ends are connected to the ends of the adjacent first portions 51. The first portions 51 located at both ends in the first direction X are connected to the first contact portion 30 and the second contact portion 40 from the same side in the second direction Y. All the first portions 51 and the second portions 52 are located on the same side relative to the side surface 34 of the first contact portion 30. The side surface 34 is a side surface of a pair of side surfaces of the first contact portion 30 intersecting the second direction Y, which is the side surface opposite to the side surface connected to the first portion 51.

In the present embodiment, as shown in FIG. 4 and FIG. 5 , the first probe needle 21 is received in the receiving portion 13 of the housing 10 in such a manner that the first end portion 31 moves in the second direction Y and in a direction close to the center of the housing 10 when the first end portion 31 approaches the second end portion 41. In other words, when the first probe needle 21 is pressed from the first end portion 31 side toward the second end portion 41, the first end portion 31 is frictionally contacted in a direction toward the center line CL of the housing 10.

As shown in FIGS. 6 and 7 , the second probe needle 22 is received in the receiving portion 13 of the housing 10 in such a manner that the first end portion 31 moves in the second direction Y and away from the center of the housing 10 when the first end portion 31 approaches the second end portion 41. In other words, when the second probe needle 22 is pressed from the first end portion 31 side toward the second end portion 41, the first end portion 31 is frictionally contacted in a direction away from the center line CL of the housing 10.

Checking socket 1 can produce the following effects.

The inspection socket 1 includes a housing 10 and a plurality of plate-shaped probe needles 20 housed inside the housing 10. Each probe needle 20 has a first end 31 disposed at one end in a first direction and a second end 41 disposed at the other end in the first direction. The plurality of probe needles 20 include at least one first probe needle 21 whose first end 31 can contact the positive terminal 101 of the battery 100, and at least one second probe needle 22 whose first end 31 can contact the edge 102 of the battery 100. When viewed along the first direction, the first end 31 of the second probe needle 22 extends in a direction intersecting the outer circumference of the battery 100. The dimension W1 of the first end 31 of the second probe needle 22 in the second direction intersecting the first direction and the thickness direction of the probe needle 20 is larger than the dimension W2 of the edge 102 of the battery 100 in the radial direction. With this structure, a testing socket 1 capable of handling batteries of various sizes can be realized.

Cylindrical spring pins are usually used for testing EV batteries. However, the spring pins do not have a tip shape suitable for the contact point of EV batteries, which may cause poor contact during testing. Since spring pins usually contain multiple parts, the current characteristics are unstable in the testing socket using spring pins. Therefore, when the testing socket is miniaturized or thinned, the probe pin housed in the testing socket also needs to be miniaturized. However, if the probe pin is miniaturized, the conduction path diameter through which the current flows becomes smaller, and the probe pin generates heat when conducting. Therefore, there is a demand to improve the heat dissipation of the testing socket. When the current flowing during testing is a high current, for example, it can be considered to make multiple probe pins contact the battery. However, since the spring pins generally have a cylindrical shape, when a plurality of spring pins are housed in a housing, it is sometimes impossible to save space for the inspection socket.

In the test socket 1, the shape of the first end 31 of the probe needle 20 can be customized according to the shape of the battery 100 (for example, the shape of the positive terminal 101 and the edge 102), thereby reducing the occurrence of poor contact during testing. In the test socket 1, since a plate-shaped probe needle 20 is used as a single part, the current characteristics can be stabilized, thereby stabilizing the measured value during the test. For example, a plurality of plate-shaped probe needles 20 are stacked and arranged in the same direction, thereby forming an efficient arrangement, which can realize space saving of the test socket 1. The plate-shaped probe needle 20 can increase the area in contact with the air compared to the spring needle, thereby improving the heat dissipation of the test socket 1 and suppressing the increase in the resistance value of the probe needle 20.

The inspection socket 1 can arbitrarily adopt any one or more of the multiple structures shown below. That is, any one or more of the multiple structures shown below can be arbitrarily deleted when included in the embodiment, and can be arbitrarily added when not included in the embodiment. By adopting such a structure, it is possible to more reliably realize an inspection socket 1 that can cope with batteries of multiple sizes.

The plurality of probe probes 20 include a plurality of first probe probes 21 and a plurality of second probe probes 22 .

The plurality of probe needles 20 include: a first probe needle group 211 having at least one first probe needle 21 ; and a second probe needle group 221 , which is electrically independent from the first probe needle group 211 and has at least one second probe needle 22 .

The plurality of second probes 22 are housed in the housing 10 in a state where they can contact the edge 102 of the battery 100.

The plurality of probes 20 are received in the housing 10 in a manner that the probes 20 are aligned in the thickness direction.

The first probe needle 21 is configured to be able to contact the positive terminal 101 having a convex shape.

The first probe needle 21 has an elastic portion 50, which is located between the first end portion 31 and the second end portion 41 in the first direction and can be extended and retracted along the first direction. The first end portion 31 and the second end portion 41 are located at one end of the elastic portion 50 in the second direction. The first probe needle 21 is accommodated in the housing 10 in such a manner that the first end portion 31 moves in the second direction and in a direction close to the center of the housing 10 when the first end portion 31 is brought close to the second end portion 41.

The second probe needle 22 has an elastic portion 50, which is located between the first end portion 31 and the second end portion 41 in the first direction and can be extended and retracted along the first direction. The first end portion 31 and the second end portion 41 are located at one end of the elastic portion 50 in the second direction. The second probe needle 22 is accommodated in the housing 10 in such a manner that the first end portion 31 moves in the second direction and away from the center of the housing 10 when the first end portion 31 approaches the second end portion 41.

The inspection device can have the following effects.

The inspection device comprises at least one inspection socket 1. The inspection socket 1 can realize an inspection device capable of handling batteries of various sizes.

The inspection socket 1 can also be constructed as follows.

The shape and structure of the housing 10 can be arbitrarily changed according to the design of the inspection socket 1. For example, the shape of the housing 10 is not limited to a substantially quadrangular prism, but can also be a substantially cylindrical shape, or a substantially polygonal shape other than a substantially quadrangular prism. The housing 10 is not limited to including two components 11 and 12, but can include one component or more than three components.

An example of an inspection socket 1 in which a housing 10 includes five components 15, 16, 17, 18, and 19 stacked along a first direction X is shown in FIG8 . In the inspection socket 1 of FIG8 , the housing 10 has a window portion 61 and a guide wall portion 62 that enable visual confirmation of the probe pin 20 housed inside from the outside of the housing 10. A plurality of window portions 61 are provided on a side surface 171 of the component 17 intersecting the thickness direction Z and a side surface 172 of the component 17 intersecting the second direction Y. By providing the window portions 61, the state of the housed probe pin 20 can be confirmed even without disassembling the housing 10, and the heat dissipation of the inspection socket 1 can be improved. The guide wall portion 62 is provided on the surface 111 of the component 15 where the first end portion 31 of the probe needle 20 is exposed, and is configured to guide the battery 100 toward the first end portion 31 .

For example, by forming a part of the housing 10 with a material having high thermal conductivity (such as aluminum), the same effect as the case where the window portion 61 is formed in the housing 10 can be obtained.

The number of the probe pins 20 housed in the inspection socket 1 can be arbitrarily changed according to the design of the inspection socket 1, etc.

For example, in the inspection socket 1 of FIG8 , the plurality of probe needles 20 include four first probe needle groups 211, 212, 213, 214, and four second probe needle groups 221, 222, 223, 224. The first probe needle group 211 of the four first probe needle groups 211, 212, 213, 214 includes one first probe needle 21, which functions as a sensing needle, for example. The remaining three first probe needle groups 212, 213, 214 include three first probe needles 21 stacked along the thickness direction Z, which function as excitation needles, for example. Similarly, the second probe needle group 221 of the four second probe needle groups 221, 222, 223, 224 includes one second probe needle 22, which functions as a sensing needle, for example. The remaining three second probe needle groups 222, 223, and 224 include three second probe needles 22 stacked along the thickness direction Z, and function as excitation needles, for example. The first probe needle group 211, the first probe needle group 212, the first probe needle group 213, and the first probe needle group 214 are located on the inner side of the opening 141 of the recess 14 when viewed along the first direction X. Specifically, the first probe needle group 211 and the first probe needle group 213 are arranged at equal intervals along the thickness direction Z, and the first probe needle group 212 and the first probe needle group 214 are arranged at equal intervals along the thickness direction Z. The first probe needle group 211, the first probe needle group 213 and the first probe needle group 212 and the first probe needle group 214 are arranged at intervals along the second direction Y.

For example, in the inspection socket 1 of FIG9 , the plurality of probe needles 20 include six first probe needle groups 211, 212, 213, 214, 215, 216, and four second probe needle groups 221, 222, 223, 224. Two of the six first probe needle groups 211, 212, 213, 214, 215, 216 include one first probe needle 21, for example, functioning as a sensing needle. The remaining four first probe needle groups 212, 213, 214, 216 include three first probe needles 21 stacked along the thickness direction Z, for example, functioning as an excitation needle. The first probe needle group 211, the first probe needle group 213, and the first probe needle group 215 are arranged at equal intervals along the thickness direction Z, and the first probe needle group 212, the first probe needle group 214, and the first probe needle group 216 are arranged at equal intervals along the thickness direction Z. The first probe needle group 211, the first probe needle group 213, the first probe needle group 215 and the first probe needle group 212, the first probe needle group 214, and the first probe needle group 216 are arranged at intervals along the second direction Y.

In this way, the number of probe needle groups and the number of probe needles included in one probe needle group can be changed to any number greater than 1.

The plurality of probe needles 20 are not limited to being housed in the housing 10 in a state where the thickness directions of all the probe needles 20 are consistent, and the plurality of probe needles 20 may be housed in the housing 10 in a state where the thickness directions of all the probe needles 20 are inconsistent.

In the inspection socket 1 of Fig. 9, a plurality of windows 61 are provided on the surface 151 where the first end 31 of the probe needle 20 is exposed in the member 15 of the housing 10. Each window 61 is configured to be able to visually confirm from the outside of the housing 10 the elastic portion 50 of the three second probe needles 22 included in the second probe needle group 222, the second probe needle group 223, and the second probe needle group 224 that function as the excitation needles.

The shape and structure of the probe needle 20 can be arbitrarily changed according to the design of the inspection socket 1. For example, the first end 31 and the second end 41 are not limited to having an inclined surface 32 or a concave-convex surface 33, and may have other structures corresponding to the shape of the inspection object or the substrate 110. FIG. 10 shows an example of an inspection socket 1 in which the first end 31 of the first probe needle 21 has a concave-convex surface 33 instead of an inclined surface 32. The elastic portion 50 is not limited to having a first portion 51 and a second portion 52, and may have an arbitrary structure that can be stretched and contracted along the first direction X.

In the above, various embodiments of the present disclosure are described in detail with reference to the drawings, and finally various embodiments of the present disclosure are described. In addition, in the following description, reference symbols are also added as an example.

The first form of the inspection socket 1 disclosed in the present invention is used for inspecting a battery. The battery has: a positive terminal located at the center of one end in the axial direction; and an annular edge located radially outward relative to the positive terminal and electrically connected to the negative terminal. The inspection socket 1 includes: a housing 10; and a plurality of plate-shaped probes 20, each having a first end 31 disposed at one end in the first direction and a second end 41 disposed at the other end in the first direction, and housed in the housing 10. The plurality of probes 20 include at least one first probe 21 whose first end 31 can contact the positive terminal, and at least one second probe 22 whose first end 31 can contact the edge. When observed along the first direction, the first end 31 of the second probe needle 22 extends in a direction intersecting the periphery of the battery, and the size of the first end 31 of the second probe needle 22 in a second direction intersecting the first direction and the thickness direction of the probe needle 20 is larger than the size of the edge in the radial direction.

The second form of the inspection socket 1 disclosed herein is like the first form of the inspection socket 1, The plurality of the detection needles 20 include a plurality of the first detection needles 21 and a plurality of the second detection needles 22.

The third form of the inspection socket 1 disclosed herein is like the second form of the inspection socket 1, The plurality of the probe needles 20 include: a first probe needle group 211, a first probe needle group 212, having at least one of the first probe needles 21; and a second probe needle group 221, a second probe needle group 222, which are electrically independently arranged relative to the first probe needle group 211, the first probe needle group 212 and have at least one of the second probe needles 22.

The fourth form of the inspection socket 1 disclosed herein is like the second form or the third form of the inspection socket 1, The plurality of the second probe needles 22 are housed in the housing 10 in a state where they can contact the edge.

The fifth form of the inspection socket 1 disclosed herein is like any form of the inspection socket 1 from the first form to the fourth form, The plurality of probes 20 are accommodated in the housing 10 in a manner consistent with the thickness direction.

The sixth form of the inspection socket 1 disclosed herein is like any form of the inspection socket 1 from the first form to the fifth form, The first probe needle 21 is configured to be able to contact the convex positive terminal.

The seventh form of the inspection socket 1 disclosed herein is the inspection socket 1 of any form from the first form to the sixth form, The first probe needle 21 has an elastic portion 50, the elastic portion 50 is located between the first end portion 31 and the second end portion 41 in the first direction and is capable of stretching and contracting along the first direction, The first end portion 31 and the second end portion 41 are located at one end of the elastic portion 50 in the second direction, The first probe needle 21 is accommodated in the housing 10 in such a manner that the first end portion 31 moves in the second direction and in a direction close to the center of the housing 10 when the first end portion 31 approaches the second end portion 41.

The eighth form of the inspection socket 1 disclosed herein is the inspection socket 1 of any form from the first form to the seventh form, The second probe needle 22 has an elastic portion 50, the elastic portion 50 is located between the first end portion 31 and the second end portion 41 in the first direction and is capable of stretching and contracting along the first direction, The first end portion 31 and the second end portion 41 are located at one end of the elastic portion 50 in the second direction, The second probe needle 22 is accommodated in the housing 10 in such a manner that the first end portion 31 moves in the second direction and away from the center of the housing 10 when the first end portion 31 approaches the second end portion 41.

The ninth form of the inspection socket 1 disclosed herein is like any form of the inspection socket 1 from the first form to the eighth form, The housing 10 has a window 61, and the window 61 enables visual confirmation of the probe 20 housed inside from the outside.

The inspection device of the tenth form disclosed herein includes at least one inspection socket 1 as described in any form from the first form to the ninth form.

By appropriately combining any of the various embodiments or modifications, the effects of each embodiment or modification can be achieved. Moreover, embodiments can be combined with each other, or embodiments can be combined with each other, or embodiments can be combined with each other, and different embodiments or features in embodiments can also be combined with each other.

This disclosure has been fully described in relation to the preferred embodiment with reference to the accompanying drawings, but various modifications or alterations are obvious to those skilled in the art. It should be understood that such modifications or alterations are included within the scope of this disclosure as long as they do not depart from the scope of the accompanying patent applications. [Industrial Applicability]

The inspection socket disclosed herein can be applied to an inspection device used for inspecting EV batteries, for example.

The inspection device disclosed herein can be used, for example, as an inspection device for EV batteries.

1: Inspection socket 10: Housing 11, 12, 15, 16, 17, 18, 19: Component 13: Accommodation 14: Recess 20: Probe 21: First probe 22: Second probe 30: First contact 31: First end 32: Inclined surface 33: Concave and convex surface 34: Side 40: Second contact 41: Second end 42: Inclined surface 50: Elastic part 51: First part 52: Second part 61: Window 62: Guide wall 100: Battery 101: Positive terminal 102: Edge 103: Periphery 110: Substrate 111, 121, 151: Surface 112, 113, 141: Opening 171, 172: Side 211, 212, 213, 214, 215, 216: First probe needle group 221, 222, 223, 224: Second probe needle group CL: Center line L: Imaginary straight line V, IV, VI, VII: Line W1, W2: Dimension X: First direction/direction Y: Second direction/direction Z: Thickness direction/direction

FIG. 1 is a perspective view of an inspection socket according to an embodiment of the present disclosure. FIG. 2 is an enlarged front view of the inspection socket of FIG. 1. FIG. 3 is a cross-sectional view along line III-III of FIG. 2. FIG. 4 is a cross-sectional view along line IV-IV of FIG. 1. FIG. 5 is a cross-sectional view along line V-V of FIG. 1. FIG. 6 is a cross-sectional view along line VI-VI of FIG. 1. FIG. 7 is a cross-sectional view along line VII-VII of FIG. 1. FIG. 8 is a perspective view of a first variant of the inspection socket of FIG. 1. FIG. 9 is an enlarged plan view of a second variant of the inspection socket of FIG. 1. FIG. 10 is a perspective view of a third variant of the inspection socket of FIG. 1.

1: Check the socket

10: Shell

11, 12: Components

14: Concave part

20: Probe

21: First probe needle

22: Second probe needle

110: Substrate

111: Noodles

112: Opening

211, 212: First probe needle set

221, 222: Second probe needle set

V, IV, VI, VII: lines

X: First direction/direction

Y: Second direction/direction

Z: thickness direction/direction

Claims (10)

A test socket for testing a battery, the battery having: a positive terminal located at the center of one end in the axial direction; and an annular edge located radially outward relative to the positive terminal and electrically connected to the negative terminal, the test socket comprising: a housing; and a plurality of plate-shaped probes, each having a first end disposed at one end in a first direction and a second end disposed at the other end in the first direction, and housed in the housing, the plurality of probes including at least one first probe whose first end can contact the positive terminal, and at least one second probe whose first end can contact the edge, when observed along the first direction, the first end of the second probe extends in a direction intersecting the periphery of the battery, The dimension of the first end of the second probe needle in the second direction intersecting the first direction and the thickness direction of the probe needle is greater than the dimension of the edge in the radial direction. The inspection socket as described in claim 1, wherein the plurality of probe needles include a plurality of the first probe needles and a plurality of the second probe needles. The inspection socket as described in claim 2, wherein the plurality of probe needles include: a first probe needle group having at least one first probe needle; and a second probe needle group that is electrically independent of the first probe needle group and has at least one second probe needle. An inspection socket as described in claim 2, wherein a plurality of the second probe needles are housed in the housing in a state capable of contacting the edge portion. An inspection socket as described in any one of claims 1 to 4, wherein a plurality of the probe needles are housed in the housing in a manner consistent with the thickness direction. An inspection socket as described in any one of claims 1 to 4, wherein the first probe needle is configured to be able to contact the positive terminal of the convex shape. An inspection socket as described in any one of claims 1 to 4, wherein the first probe needle has an elastic portion, the elastic portion is between the first end portion and the second end portion in the first direction and is capable of stretching and contracting along the first direction, the first end portion and the second end portion are located at one end of the elastic portion in the second direction, the first probe needle is accommodated in the housing in such a manner that the first end portion moves in the second direction and in a direction close to the center of the housing when the first end portion approaches the second end portion. An inspection socket as described in any one of claims 1 to 4, wherein the second probe needle has an elastic portion, the elastic portion is between the first end portion and the second end portion in the first direction and is capable of stretching and contracting along the first direction, the first end portion and the second end portion are located at one end of the elastic portion in the second direction, the second probe needle is accommodated in the housing in such a manner that when the first end portion approaches the second end portion, the first end portion moves in the second direction and away from the center of the housing. The inspection socket as described in any one of claims 1 to 4, wherein the housing has a window portion, and the window portion enables visual confirmation of the probe needle accommodated inside from the outside. An inspection device comprises at least one inspection socket as described in any one of claims 1 to 4.