CN117907652A

CN117907652A - Inspection socket and inspection device

Info

Publication number: CN117907652A
Application number: CN202311189647.9A
Authority: CN
Inventors: 酒井贵浩; 笹野直哉; 小野山太治
Original assignee: Omron Corp
Current assignee: Omron Corp
Priority date: 2022-10-19
Filing date: 2023-09-14
Publication date: 2024-04-19
Also published as: KR20240054879A; JP2024060417A; CN219496481U; TW202417866A

Abstract

The invention provides an inspection socket and an inspection device, which can cope with batteries with multiple sizes. The inspection socket includes a housing and a plurality of plate-shaped probes accommodated in the housing. Each probe has a first end portion disposed at one end and a second end portion disposed at the other end. The plurality of probes includes at least 1 first probe with a first end capable of contacting a positive terminal of the battery and at least 1 second probe with a first end capable of contacting an edge of the battery. The first end of the second probe extends in a direction intersecting the outer periphery of the battery when viewed in the first direction. The first end of the second probe has a larger dimension in a second direction intersecting the first direction and the thickness direction of the probe than the edge of the battery in the radial direction.

Description

Inspection socket and inspection device

Technical Field

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

Background

Patent document 1 describes an inspection device for a secondary battery.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 2000-28692

In general, in an inspection apparatus including an inspection apparatus of patent document 1, inspection is performed using a spring probe (so-called spring probe) having a cylindrical shape. However, in general, since the spring pins have small contact diameters, it is sometimes impossible to cope with the inspection of batteries of a plurality of sizes.

Disclosure of Invention

The purpose of the present disclosure is to provide an inspection socket and an inspection device that can cope with batteries of a plurality of sizes.

An inspection socket of one embodiment of the present disclosure is for inspection of a battery having: a positive electrode terminal located at the center of one end in the axial direction; and an annular edge portion which is located radially outside the positive electrode terminal and is electrically connected to the negative electrode terminal, wherein,

The inspection socket includes:

A housing; and

A plurality of plate-shaped probes each having a first end portion provided at one end in a first direction and a second end portion provided at the other end in the first direction, and being accommodated in the housing,

A plurality of the probes comprises: at least 1 first probe having the first end capable of contacting the positive terminal; and at least 1 second probe with which the first end portion can be in contact with the rim portion,

The first end portion extends in a direction intersecting with an outer periphery of the battery as viewed along the first direction,

The first end portion of the second probe has a larger dimension in a second direction intersecting the first direction and a thickness direction of the probe than the rim portion in a radial direction.

An inspection device according to one embodiment of the present disclosure includes at least 1 inspection socket according to the above embodiment.

According to the present disclosure, it is possible to provide an inspection socket and an inspection device capable of coping with a plurality of sizes of batteries.

Drawings

Fig. 1 is a perspective view showing an inspection socket according to an embodiment of the present disclosure.

Fig. 2 is an enlarged front view of the inspection receptacle of fig. 1.

Fig. 3 is a cross-sectional view taken along line III-III of fig. 2.

Fig. 4 is a cross-sectional view taken along line IV-IV of fig. 1.

Fig. 5 is a sectional view taken along the line V-V of fig. 1.

Fig. 6 is a cross-sectional view taken along line VI-VI of fig. 1.

Fig. 7 is a cross-sectional view taken along line VII-VII of fig. 1.

Fig. 8 is a perspective view showing a first modification of the inspection socket of fig. 1.

Fig. 9 is an enlarged plan view showing a second modification of the inspection socket of fig. 1.

Fig. 10 is a perspective view showing a third modification of the inspection socket of fig. 1.

Description of the reference numerals

1 Inspection socket

10 Shell body

11. 12, 15, 16, 17, 18, 19 Parts

13 Accommodating part

14 Concave portion

20 Probes

21 First probe

22 Second probe

30 First contact portion

31 First end portion

32 Inclined planes

33 Concave-convex surface

34 Side surfaces

40 Second contact portion

41 Second end portion

42 Inclined plane

50 Elastic portion

51 First part

52 Second part

61 Window portion

62 Guide wall portion

100 Battery

101 Positive terminal

102 Edge part

103 Periphery

110 Substrate

111. 121, 151 Faces

112. 113, 141 Opening part

171. 172 Side surfaces

211. 212, 213, 214, 215, 216 First probe set

221. 222, 223, 224 Second probe set

402 Second contact portion

Detailed Description

An example of the present disclosure will be described below with reference to the accompanying drawings. The following description is merely exemplary in nature and is not intended to limit the present disclosure, its application, or uses. The drawings are schematic, and the ratio of the dimensions and the like are not necessarily the same as in reality.

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

The inspection socket 1 constitutes, for example, a part of an inspection device used for inspecting the battery 100 shown in fig. 2. The battery 100 has: a positive electrode terminal 101 having a substantially cylindrical shape and located at the center of one end in the axial direction (for example, X direction); and an annular edge 102 (see fig. 3) which is located radially outward of the positive electrode terminal 101 and is electrically connected to the negative electrode terminal. As an example, the positive electrode terminal 101 has a convex shape. The battery 100 is, for example, a lithium ion battery for EV (ELECTRIC VEHICLE: electric car).

In the present embodiment, the plurality of probes 20 includes 2 first probes 21 and 2 second probes 22. In detail, the plurality of probes 20 includes: 2 first probe groups 211, 212 each including 1 first probe 21; and 2 second probe sets 221, 222 each including 1 second probe 22. The probe sets are electrically independent of each other. The first probe set 211 and the second probe set 221 function as, for example, sensing probes (sense pins), and the first probe set 212 and the second probe set 222 function as, for example, force probes (force pins). Each probe 20 is formed from a single piece.

As shown in fig. 1, the housing 10 has a substantially quadrangular prism shape, for example, and includes a plurality of storage portions 13 (see fig. 4 to 7) in which at least 1 probe 20 can be stored. Each housing portion 13 is configured to be able to house a probe 20 in a state where a first end 31 and a second end 41 of the probe 20, which will be described later, are exposed.

In the present embodiment, the case 10 is composed of 2 members 11 and 12 stacked in a first direction (for example, X direction) in which the accommodated probe 20 extends. Each housing portion 13 houses 1 probe 20. Each storage portion 13 is formed so that the thickness direction of the probe 20 stored in the storage portion 13 is uniform. A substantially circular recess 14 is provided in the surface 111 of the member 11 on which the first end 31 of the probe 20 is exposed. The bottom surface of the recess 14 is provided with 2 openings 112 through which the first ends 31 of the first probes 21 are exposed. On the outer side of the surface 111 in the radial direction of the recess 14, 2 openings 113 are provided for exposing the first ends 31 of the second probes 22, respectively. A substrate 110 is mounted on a surface 121 (see fig. 4 to 7) of the member 12 on which the second end 41 of the probe 20 is exposed.

As shown in fig. 4 to 7, the probe 20 has a first end 31 provided at one end in the first direction X and a second end 41 provided at the other end in the first direction X. In the present embodiment, the probe 20 includes: a first contact portion 30 having a first end portion 31; a second contact portion 40 having a second end portion 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 expanding 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 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 that is farther from the second contact portion 40 in the first direction X constitutes the first end 31. The elastic portion 50 is connected from the second direction Y to an end of the first contact portion 30 that is closer to the second contact portion 40 in the first direction X.

In the present embodiment, as shown in fig. 3, when viewed along the first direction X, the first end 31 of the second probe 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 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 21 is configured to be able to contact the positive electrode terminal 101 of the battery 100, and the first end 31 of the second probe 22 is configured to be able to contact the edge 102 of the battery 100. In detail, as shown in fig. 4 and 5, the first end 31 of the first probe 21 has an inclined surface 32, and the inclined surface 32 is inclined in the first direction X in a direction approaching the second contact portion 40 as being away from the center line CL of the housing 10 extending in the first direction X in the second direction Y. As shown in fig. 6 and 7, the first end 31 of the second probe 22 has an uneven surface 33 formed with a plurality of irregularities. By configuring the first end 31 in this manner, the first probe 21 and the second probe 22 can be brought into point contact with the battery 100, respectively.

The second contact portion 40 has a substantially rectangular plate shape extending along the first direction X. The second contact portion 40 has a length in the first direction X smaller than the first contact portion 30. An end of the second contact portion 40, which is farther from the first contact portion 30 in the first direction X, constitutes a second end 41. The elastic portion 50 is connected from the second direction Y to an end of the second contact portion 40 that is closer to the first contact portion 30 in the first direction X.

In the present embodiment, as shown in fig. 3, the plurality of second probes 22 are accommodated in the accommodating portion 13 of the case 10 in a state where they can be brought into contact with the edge 102 of the battery 100.

The second ends 41 of the first and second probes 21 and 22 are configured to be capable of contacting terminals of the substrate 110. Specifically, as shown in fig. 4 to 7, the second end portions 41 of the first and second probes 21 and 22 have inclined surfaces 42, and the inclined surfaces 42 are inclined in the first direction X toward the first contact portion 30 as they are away from the center line CL in the second direction Y. By configuring the second end portion 41 in this manner, the first probe 21 and the second probe 22 can be brought into point contact with the substrate 110, respectively.

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 each linearly extends along the second direction Y. Each of the second portions 52 has a substantially semicircular arc shape extending along the first direction X, and both ends thereof are connected to the ends of the adjacent first portions 51, respectively. 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, respectively. All of the first portion 51 and the second portion 52 are located on the same side with respect to the side 34 of the first contact 30. The side surface 34 is a side surface opposite to the side surface to which the first portion 51 is connected, of a pair of side surfaces of the first contact portion 30 intersecting the second direction Y.

In the present embodiment, as shown in fig. 4 and 5, when the first end 31 is made to approach the second end 41, the first probe 21 is housed in the housing portion 13 of the housing 10 so that the first end 31 moves in the second direction Y in a direction approaching the center of the housing 10. In other words, when the first probe 21 is pressed from the first end 31 side toward the second end 41, the first end 31 is wiped (wiping) in a direction toward the center line CL of the housing 10.

As shown in fig. 6 and 7, the second probe 22 is accommodated in the accommodation portion 13 of the housing 10 so that the first end 31 moves in the second direction Y in a direction away from the center of the housing 10 when the first end 31 is brought closer to the second end 41. In other words, when the second probe 22 is pressed from the first end 31 side toward the second end 41, the first end 31 is wiped away from the center line CL of the housing 10.

The inspection socket 1 can exhibit the following effects.

The inspection socket 1 includes a housing 10 and a plurality of plate-shaped probes 20 accommodated in the housing 10. Each probe 20 has a first end 31 provided at one end in the first direction and a second end 41 provided at the other end in the first direction. The plurality of probes 20 includes: at least 1 first probe 21 of which first end 31 can be in contact with positive terminal 101 of battery 100; and at least 1 second probe 22 with which first end 31 can contact edge 102 of battery 100. The first end 31 of the second probe 22 extends in a direction intersecting the outer periphery of the battery 100 when viewed in the first direction. The dimension W1 of the first end 31 of the second probe 22 in the second direction intersecting the first direction and the thickness direction of the probe 20 is larger than the dimension W2 of the edge 102 of the battery 100 in the radial direction. With this configuration, the inspection socket 1 capable of coping with a plurality of sizes of batteries can be realized.

In inspection of EV batteries, a spring needle having a cylindrical shape is generally used. However, the spring pins do not have distal ends having a shape suitable for the contacts of the EV battery, and contact failure may occur during inspection. Since the pogo pin is generally composed of a plurality of parts, current characteristics are unstable in an inspection socket using the pogo pin. Therefore, in the case of miniaturizing or thinning the inspection socket, it is necessary to miniaturize the probe housed in the inspection socket, but if miniaturizing the probe, the conduction path through which the current flows is narrowed, and the probe generates heat at the time of conduction, so there is a demand for improving the heat dissipation of the inspection socket. When the current flowing during the inspection is high, for example, it is considered to bring a plurality of probes into contact with the battery. However, since the pogo pins generally have a cylindrical shape, when a plurality of pogo pins are housed in a housing, space saving of the inspection socket may not be achieved.

In the inspection socket 1, the shape of the first end 31 of the probe 20 can be customized according to the shape of the battery 100 (for example, the shape of the positive electrode terminal 101 and the edge 102), and therefore, occurrence of contact failure at the time of inspection can be reduced. In the inspection socket 1, since the plate-shaped probe 20 is used as a single member, the current characteristics can be stabilized, and the measured value can be stabilized during the inspection. The plate-like probes 20 are arranged in the same direction while being stacked in a plurality of sheets, for example, so that the inspection socket 1 can be efficiently arranged, and space saving can be achieved. The plate-like probe 20 can increase the area of contact with air as compared with the pogo pin, and therefore, the heat radiation performance of the inspection socket 1 can be improved, and the rise in the resistance value of the probe 20 can be suppressed.

The inspection socket 1 can arbitrarily adopt any 1 or more of the structures shown below. That is, 1 or more of the structures shown below can be deleted arbitrarily when they are included in the above embodiment, and added arbitrarily when they are not included in the above embodiment. By adopting such a configuration, the inspection socket 1 capable of coping with a plurality of sizes of batteries can be realized more reliably.

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

The plurality of probes 20 includes: a first probe set 211 having at least 1 first probe 21; and a second probe group 221 which is electrically independent from the first probe group 211 and has at least 1 second probe 22.

The plurality of second probes 22 are housed in the case 10 in a state where they can be brought into contact with the edge 102 of the battery 100.

The plurality of probes 20 are housed in the case 10 so as to be aligned in the thickness direction.

The first probe 21 is configured to be capable of contacting the positive electrode terminal 101 having a convex shape.

The first probe 21 has an elastic portion 50 located between the first end portion 31 and the second end portion 41 in the first direction and capable of expanding and contracting along the first direction. The first end 31 and the second end 41 are located at one end of the elastic portion 50 in the second direction. When the first end 31 is moved toward the second end 41, the first probe 21 is housed in the housing 10 so that the first end 31 moves in the second direction in a direction approaching the center of the housing 10.

The second probe 22 has an elastic portion 50 located between the first end 31 and the second end 41 in the first direction and capable of expanding and contracting along the first direction. The first end 31 and the second end 41 are located at one end of the elastic portion 50 in the second direction. The second probe 22 is housed in the case 10 so that the first end 31 moves in a direction away from the center of the case 10 in the second direction when the first end 31 approaches the second end 41.

The inspection apparatus can exhibit the following effects.

The inspection device is provided with at least 1 inspection socket 1. By the inspection socket 1, an inspection device capable of coping with a plurality of sizes of batteries can be realized.

The inspection socket 1 may be configured as follows.

The shape and structure of the housing 10 can be arbitrarily changed according to the design of the inspection socket 1, and the like. For example, the shape of the case 10 is not limited to a substantially quadrangular prism shape, and may be a substantially cylindrical shape, or may be a substantially polygonal shape other than a substantially quadrangular prism shape. The case 10 is not limited to the case of being composed of 2 members 11 and 12, but may be composed of 1 member, or may be composed of 3 or more members.

Fig. 8 shows an example of the inspection socket 1 in which the housing 10 is constituted of 5 members 15, 16, 17, 18, 19 laminated in the first direction X. In the inspection socket 1 of fig. 8, the housing 10 has a guide wall portion 62 and a window portion 61 in which the probe 20 housed inside can be visually confirmed from outside the housing 10. The window 61 is provided in plurality on a side surface 171 of the member 17 intersecting the thickness direction Z and a side surface 172 of the member 17 intersecting the second direction Y. By providing the window 61, the state of the stored probe 20 can be checked without disassembling the housing 10, and the heat radiation performance of the inspection socket 1 can be improved. The guide wall 62 is provided on the surface 111 of the member 15 on which the first end 31 of the probe 20 is exposed, and is configured to guide the battery 100 toward the first end 31.

For example, by forming a part of the case 10 from a material having high thermal conductivity (for example, aluminum), the same effect as that of forming the window 61 in the case 10 can be obtained.

The number of probes 20 accommodated in the inspection socket 1 can be arbitrarily changed according to the design of the inspection socket 1, and the like.

For example, in the inspection socket 1 of fig. 8, the plurality of probes 20 includes 4 first probe groups 211, 212, 213, 214 and 4 second probe groups 221, 222, 223, 224. The first probe set 211 of the 4 first probe sets 211, 212, 213, 214 includes 1 first probe 21, and functions as a sensing probe, for example. The remaining 3 first probe groups 212, 213, 214 include 3 first probes 21 stacked in the thickness direction Z, and function as force probes, for example. Likewise, the second probe set 221 of the 4 second probe sets 221, 222, 223, 224 includes 1 second probe 22, and functions as a sensing probe, for example. The remaining 3 second probe groups 222, 223, 224 include 3 second probes 22 stacked in the thickness direction Z, and function as force probes, for example. The first probe groups 211, 212, 213, 214 are located inside the opening 141 of the recess 14 when viewed along the first direction X. Specifically, the first probe groups 211 and 213 are arranged at equal intervals in the thickness direction Z, and the first probe groups 212 and 214 are arranged at equal intervals in the thickness direction Z. The first probe groups 211 and 213 and the first probe groups 212 and 214 are arranged at intervals in the second direction Y.

For example, in the inspection socket 1 of fig. 9, the plurality of probes 20 includes 6 first probe groups 211, 212, 213, 214, 215, 216 and 4 second probe groups 221, 222, 223, 224. 2 first probe groups 211, 215 of the 6 first probe groups 211, 212, 213, 214, 215, 216 include 1 first probe 21, and function as a sensing probe, for example. The remaining 4 first probe groups 212, 213, 214, 216 include 3 first probes 21 stacked in the thickness direction Z, and function as force probes, for example. The first probe groups 211, 213, 215 are arranged at equal intervals along the thickness direction Z, and the first probe groups 212, 214, 216 are arranged at equal intervals along the thickness direction Z. The first probe groups 211, 213, 215 and the first probe groups 212, 214, 216 are arranged at intervals in the second direction Y.

In this way, the number of probe sets and the number of probes included in 1 probe set can be changed to any number of 1 or more.

The plurality of probes 20 are not limited to the case where the thickness directions of all the probes 20 are identical, and may be housed in the case 10 where the thickness directions of all the probes 20 are not identical.

In the inspection socket 1 of fig. 9, a plurality of windows 61 are provided on a surface 151 of the member 15 of the housing 10 on which the first ends 31 of the probes 20 are exposed. Each of the windows 61 is configured to be capable of visually checking the elastic portions 50 of the 3 second probes 22 included in the second probe groups 222, 223, 224 functioning as force probes from the outside of the housing 10.

The shape and structure of the probe 20 can be arbitrarily changed according to the design of the inspection socket 1, and the like. For example, the first end 31 and the second end 41 are not limited to the case of having the inclined surface 32 or the uneven surface 33, and may have other structures according to the shape of the inspection object or the substrate 110. Fig. 10 shows an example of the inspection socket 1 in which the first end 31 of the first probe 21 is not the inclined surface 32 but has the concave-convex surface 33. The elastic portion 50 is not limited to the case having the first portion 51 and the second portion 52, and may have any structure that can expand and contract in the first direction X.

Various embodiments of the present disclosure have been described in detail above with reference to the drawings, and finally various embodiments of the present disclosure have been described. In the following description, reference numerals are given to the same examples.

The inspection socket 1 of the first aspect of the present disclosure is used for inspection of a battery having: a positive electrode terminal located at the center of one end in the axial direction; and an annular edge portion which is located radially outside the positive electrode terminal and is electrically connected to the negative electrode terminal, wherein,

The inspection socket 1 has:

A housing 10; and

A plurality of plate-shaped probes 20, wherein each of the plurality of plate-shaped probes 20 has a first end 31 provided at one end in a first direction and a second end 41 provided at the other end in the first direction, is accommodated in the housing 10,

The plurality of probes 20 includes: at least 1 first probe 21 of which the first end 31 can be in contact with the positive electrode terminal; and at least 1 second probe 22 with which the first end 31 can come into contact,

The first end 31 of the second probe 22 extends in a direction intersecting the outer periphery of the battery, as viewed along the first direction,

The first end 31 of the second probe 22 has a larger dimension in a second direction intersecting the first direction and the thickness direction of the probe 20 than the rim in the radial direction.

The inspection socket 1 of the second aspect of the present disclosure includes, in the inspection socket 1 of the first aspect, a plurality of the probes 20 including a plurality of the first probes 21 and a plurality of the second probes 22.

In the inspection socket 1 of the third aspect of the present disclosure, in the inspection socket 1 of the second aspect, the plurality of probes 20 includes: a first probe set 211, 212 having at least 1 of said first probes 21; and second probe groups 221, 222 which are electrically independent from each other with respect to the first probe groups 211, 212 and have at least 1 of the second probes 22.

In the inspection socket 1 according to the fourth aspect of the present disclosure, in the inspection socket 1 according to the second or third aspect, the plurality of second probes 22 are housed in the case 10 in a state where they can be brought into contact with the edge.

In the inspection socket 1 according to the fifth aspect of the present disclosure, in any one of the inspection sockets 1 according to the first to fourth aspects, the plurality of probes 20 are housed in the housing 10 so that the thickness direction is uniform.

The inspection socket 1 according to a sixth aspect of the present disclosure is the inspection socket 1 according to any one of the first to fifth aspects, wherein the first probe 21 is configured to be capable of contacting the positive electrode terminal having a convex shape.

The inspection socket 1 of the seventh aspect of the present disclosure is the inspection socket 1 of any one of the first to sixth aspects,

The first probe 21 has an elastic portion 50 located between the first end portion 31 and the second end portion 41 in the first direction and being stretchable along the first direction,

The first end 31 and the second end 41 are located at one end of the elastic portion 50 in the second direction,

The first probe 21 is housed in the housing 10 so that the first end 31 moves in the second direction in a direction approaching the center of the housing 10 when the first end 31 approaches the second end 41.

The inspection socket 1 according to the eighth aspect of the present disclosure is the inspection socket 1 according to any one of the first to seventh aspects,

The second probe 22 has an elastic portion 50 located between the first end portion 31 and the second end portion 41 in the first direction and being stretchable along the first direction,

The second probe 22 is housed in the housing 10 so that the first end 31 moves in the second direction away from the center of the housing 10 when the first end 31 approaches the second end 41.

In the inspection socket 1 according to the ninth aspect of the present disclosure, in the inspection socket 1 according to the first to eighth aspects, the housing 10 includes a window portion 61 in which the probe 20 housed therein can be visually checked from the outside.

An inspection device according to a tenth aspect of the present disclosure includes at least 1 inspection socket 1 according to any one of the first to ninth aspects.

The effects of the respective embodiments and modifications can be exerted by appropriately combining any of the various embodiments and modifications. In addition, combinations of the embodiments or examples or combinations of the embodiments and examples can be performed, and combinations of features in different embodiments or examples can also be performed.

The present disclosure has been fully described in relation to the preferred embodiments with reference to the accompanying drawings, but various modifications and corrections can be made by those skilled in the art. It should be understood that such variations and modifications are included therein without departing from the scope of the present disclosure as set forth in the following claims.

[ Industrial applicability ]

The inspection socket of the present disclosure can be applied to, for example, an inspection device used for inspecting an EV battery.

The inspection device of the present disclosure can be applied as an inspection device for an EV battery, for example.

Claims

1. An inspection socket for inspection of a battery having: a positive electrode terminal located at the center of one end in the axial direction; and an annular edge portion which is located radially outside the positive electrode terminal and is electrically connected to the negative electrode terminal,

The inspection socket is characterized by comprising:

a housing;

A plurality of plate-shaped probes each having a first end portion provided at one end in a first direction and a second end portion provided at the other end in the first direction, and being housed in the housing,

The first end portion of the second probe extends in a direction intersecting with an outer periphery of the battery as viewed along the first direction,

2. The inspection receptacle of claim 1 wherein the inspection receptacle,

The plurality of probes includes a plurality of the first probes and a plurality of the second probes.

3. The inspection receptacle of claim 2 wherein the inspection receptacle,

A plurality of the probes comprises: a first probe set having at least 1 of the first probes; and a second probe group which is electrically independent from the first probe group and has at least 1 of the second probes.

4. The inspection receptacle of claim 2 wherein the inspection receptacle,

The plurality of second probes are accommodated in the housing so as to be capable of contacting the edge portion.

5. The inspection socket of any one of claims 1 to 4, wherein,

The plurality of probes are housed in the case so that the thickness direction is uniform.

6. The inspection socket of any one of claims 1 to 4, wherein,

The first probe is configured to be capable of contacting the positive electrode terminal having a convex shape.

7. The inspection socket of any one of claims 1 to 4, wherein,

The first probe has an elastic portion located between the first end portion and the second end portion in the first direction and being stretchable 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 is housed in the housing so that the first end moves in the second direction in a direction approaching the center of the housing when the first end is moved toward the second end.

8. The inspection socket of any one of claims 1 to 4, wherein,

The second probe has an elastic portion located between the first end portion and the second end portion in the first direction and being stretchable along the first direction,

The second probe is housed in the housing so that the first end moves in the second direction away from the center of the housing when the first end is brought closer to the second end.

9. The inspection socket of any one of claims 1 to 4, wherein,

The housing has a window portion in which the probe accommodated therein can be visually checked from the outside.

10. An inspection apparatus comprising at least 1 inspection socket according to any one of claims 1 to 4.