CN219201840U - PCM testing arrangement - Google Patents

Abstract

The utility model relates to the technical field of PCM detection, in particular to a PCM testing device. The PCM test device comprises a drive end of a middle driving member and a test needle assembly, wherein the test needle assembly is connected with a pressing plate, the pressing plate is positioned between the test needle assembly and the carrier, and a pressing protruding part is arranged on the surface of the pressing plate facing the carrier; the carrier is used for setting the PCM and the test board, and the first connecting part of the PCM and the second connecting part of the test board are correspondingly arranged; the driving member drives the test needle assembly and the pressing plate to move towards the carrier, the pressing protruding portion presses the first connecting portion to connect the first connecting portion with the second connecting portion, and the test needle of the test needle assembly penetrates through the pressing plate to be in contact connection with the contact of the test plate for testing. According to the PCM testing device, the pressing protruding part can ensure that the first connecting part and the second connecting part are kept in a stable connection state, so that the problem of inaccurate testing caused by the fact that the first connecting part and the second connecting part are not firmly connected or separated from each other is avoided.

Description

PCM testing arrangement

Technical Field

The utility model relates to the technical field of PCM detection, in particular to a PCM testing device.

Background

In the field of batteries, it is necessary to detect the battery PCM (Protection Circuit Module, protection plate) to avoid the outflow of unqualified battery PCM, thereby avoiding the problems of rework waste and safety risk caused by finding out the failure of the battery in the subsequent assembly link of the finished product. Current methods of testing battery PCM generally use specialized PCM testing devices for testing. When testing, the PCM is put into the carrier of the PCM testing device, and after the PCM is electrically connected with the testing board of the PCM testing device through the connector, the testing needle is contacted with the contact of the testing board to test whether the PCM of the battery is qualified. However, when the existing PCM testing device is used for testing, the PCM and the testing board are not firmly electrically connected or separated from each other, so that the testing is inaccurate.

Disclosure of Invention

In view of the above, the present utility model is directed to a PCM testing device, which solves or partially solves the problem of inaccurate testing of the existing PCM testing device.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a PCM testing device comprising a base, and a driving member, a test needle assembly, a pressing plate and a carrier provided on the base; the driving end of the driving member is connected with the test needle assembly, the test needle assembly is connected with the pressing plate, the pressing plate is positioned between the test needle assembly and the carrier, and the pressing plate is provided with a pressing protruding part towards the surface of the carrier; the carrier is used for setting a PCM and a test board, and the first connecting part of the PCM and the second connecting part of the test board are correspondingly arranged; the driving member drives the test needle assembly and the pressing plate to move towards the carrier, the pressing protruding portion presses the first connecting portion to connect the first connecting portion with the second connecting portion, and the test needle of the test needle assembly penetrates through the pressing plate to be in contact connection with the contact of the test plate.

Further, the PCM testing device further comprises a limiting plate, the limiting plate is arranged in the carrier, a limiting through hole is formed in the limiting plate, the first connecting portion is located at one side of the limiting through hole in the thickness direction of the limiting plate, and the second connecting portion is located in the limiting through hole or located at the other side of the limiting through hole in the thickness direction of the limiting plate; when the pressing protruding portion presses the first connecting portion, the first connecting portion moves towards the limiting through hole and is connected with the second connecting portion.

Further, the limiting plate is provided with a limiting groove, the end part of the PCM can be placed in the limiting groove, and the bottom of the limiting groove is provided with the limiting through hole.

Further, the carrier includes first spacing groove, second spacing groove and third spacing groove on the direction of height of carrier, the tank bottom of first spacing groove the tank bottom of second spacing groove with the tank bottom of third spacing groove increases in proper order, be used for placing in the first spacing groove the test board, be used for placing in the second spacing groove the limiting plate, be used for placing in the third spacing groove the PCM.

Further, the plurality of second limiting grooves are arranged at intervals along the width direction of the carrier, and the second limiting grooves extend along the length direction of the carrier; the first limiting grooves are arranged at intervals along the length direction of the second limiting groove, and one ends of the first limiting grooves extend into the second limiting groove; the third limiting grooves are arranged at intervals along the length direction of the second limiting groove, and the third limiting grooves are parallel to the width direction of the carrier.

Further, the pressing protruding portion is an elastic material piece; or, be provided with the elastic material spare on the protruding portion of pressing, the one end of elastic material spare with the protruding portion of pressing is connected, the other end of elastic material spare is used for pressing the first connecting portion.

Further, the test needle assembly comprises a plurality of test needles and a test needle plate, the plurality of test needles are fixedly connected with the test needle plate, and the test needle plate is connected with the driving end of the driving member; an elastic piece is arranged between the test needle plate and the pressing plate, and the test needle plate is connected with the pressing plate through a guide post; when the driving member drives the test needle plate to move towards the carrier, the pressing plate moves to be in contact with the PCM, the test needle plate and the pressing plate move in opposite directions, the elastic piece deforms and compresses, and the measuring needle passes through a pressing plate through hole on the pressing plate to be in contact connection with a contact of the test plate; when the driving component drives the test needle plate to move away from the carrier, the elastic piece is used for pushing the test needle plate to move in a separated mode with the pressing plate.

Further, a carrier limiting hole is formed in the edge of the carrier, and the carrier limiting hole is suitable for the guide post to be inserted.

Further, the PCM testing device further comprises a carrier mounting plate connected with the base, a carrier groove is formed in the carrier mounting plate, and the carrier is suitable for being placed in the carrier groove.

Further, an elastic component is arranged between one surface of the carrier mounting plate, which is far away from the carrier, and the base, and a positioning column is arranged on the base; when the driving member drives the test needle assembly and the pressing plate to move towards the carrier and press the carrier, the carrier and the carrier mounting plate move downwards, and the positioning column is suitable for being inserted into the mounting plate limiting hole at the bottom of the carrier groove, limiting the carrier mounting plate and being suitable for being abutted with the carrier.

Compared with the prior art, the PCM testing device provided by the utility model has the following advantages:

according to the PCM test device, the driving member drives the test needle assembly to move towards the carrier, the test needle assembly drives the pressing plate to move towards the carrier, when the pressing plate moves to the pressing protruding portion to press the first connecting portion, the first connecting portion and the second connecting portion can be tightly connected, stable connection of the PCM and the test board is achieved, when the test needle of the test needle assembly contacts with the contact of the test board for testing, the pressing protruding portion can ensure that the first connecting portion and the second connecting portion keep a stable connection state, and further the problem that the connection of the first connecting portion and the second connecting portion is not firm or the test is inaccurate due to mutual separation is avoided.

The foregoing description is only an overview of the present utility model, and is intended to be implemented in accordance with the teachings of the present utility model in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present utility model more readily apparent.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a PCM testing device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of an enlarged view of portion A of FIG. 1 according to another embodiment of the present utility model;

FIG. 3 is a schematic diagram of the enlarged view of portion B in FIG. 1 according to an embodiment of the present utility model;

FIG. 4 is a schematic view showing the connection of a carrier to a PCM and a test board according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a carrier according to an embodiment of the present utility model;

FIG. 6 is a schematic structural view of a limiting plate according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a carrier mounting plate according to an embodiment of the utility model;

fig. 8 is a schematic structural view of a PCM and test plate connection according to an embodiment of the present utility model;

fig. 9 is a schematic diagram of a PCM testing device according to the second embodiment of the present utility model;

FIG. 10 is a schematic diagram of the enlarged view of portion C in FIG. 9 according to an embodiment of the present utility model;

fig. 11 is a schematic structural diagram of an enlarged view of a portion D in fig. 9 according to an embodiment of the present utility model.

Reference numerals illustrate:

10-a base; 11-operating a switch; 12-a limit rod; 20-a driving member; 30-a test needle assembly; 31-testing needle boards; 32-needle plate mounting holes; 33-needle plate limit posts; 34-measuring needle; 40-pressing plates; 41-pressing the boss; 42-a platen through hole; 43-a pressing plate limiting hole; 50-a carrier; 51-a first limit groove; 52-a second limit groove; 53-a third limit groove; 54-a carrier limiting hole; 55-carrier handle; 60-limiting plates; 61-limiting through holes; 62-limiting grooves; 71-an elastic member; 72-guiding columns; 73-positioning columns; 74-an elastic component; 80-a carrier mounting plate; 81-carrier grooves; 82-mounting plate limiting holes; 91-PCM; 92-test plate; 93-a protective plate body; 94-reinforcing plates; 95-a first connection; 96-contacts.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, there is shown a schematic structural view of a PCM testing device according to an embodiment of the present utility model; the PCM testing device comprises a base 10, a driving member 20 provided on the base 10, a test needle assembly 30, a pressing plate 40 and a carrier 50; the driving end of the driving member 20 is connected with the test needle assembly 30, the test needle assembly 30 is elastically connected with the pressing plate 40, the pressing plate 40 is positioned between the test needle assembly 30 and the carrier 50, and the pressing plate 40 is provided with a pressing protrusion 41 towards the surface of the carrier 50; the carrier 50 is used for setting the PCM91 and the test board 92, and a first connection portion 95 of the PCM91 and a second connection portion of the test board 92 are correspondingly set; the driving member 20 drives the test needle assembly 30 and the pressing plate 40 to move toward the carrier 50, the pressing protrusion 41 presses the first connection portion 95 to connect the first connection portion 95 and the second connection portion, and the test needle 34 of the test needle assembly 30 passes through the pressing plate 40 to be in contact connection with the contact 96 of the test plate 92 for testing the PCM electrically connected with the test plate 92.

Specifically, the base 10 provides support for the driving member 20, the test needle assembly 30, the pressing plate 40 and the carrier 50, and referring to fig. 1, the base 10 encloses an installation space, the test needle assembly 30, the pressing plate 40 and the carrier 50 are all disposed in the installation space, the base 10 can protect the test needle assembly 30, the pressing plate 40 and the carrier 50, other components are prevented from affecting the operation of the PCM testing device, and injury to personnel caused by the PCM testing device during operation is reduced.

Further, referring to fig. 1, a control module and a control switch 11 connected to the control module are disposed in the base 10, the control module is further connected to the driving member 20, and the control switch 11 can start and stop the motion of the driving member 20.

The driving member 20 is a power supply in the PCM testing device, and can drive the test needle assembly 30 to reciprocate in the vertical direction, so as to drive the pressing plate 40 to reciprocate in the vertical direction. It is understood that the driving member 20 may be a member for driving the test needle assembly 30 to stably reciprocate in a vertical direction, for example, the driving mechanism may be a driving motor, a cylinder, or the like.

The pressing plate 40 is used for pressing the PCM91, the pressing protrusion 41 is disposed corresponding to the first connection portion 95 or the second connection portion of the PCM91, the pressing protrusion 41 is used for pressing the first connection portion 95, connecting the first connection portion 95 and the second connection portion, and further stably connecting the PCM91 and the test board 92. Referring further to fig. 8, a schematic diagram of the structure of the connection of the PCM91 and the test plate 92 according to an embodiment of the present utility model is shown. Referring to fig. 3, there is shown a schematic structure of the PCM91, wherein a protection plate body 93 is disposed at a middle portion of the PCM91 toward one side of the pressing plate 40, first connection portions 95 are disposed at both ends of the protection plate body 93, and a reinforcing plate 94 is disposed at a side of the first connection portions 95 toward the pressing plate 40 in order to increase structural strength of the first connection portions 95, the pressing protrusion 41 may abut against the reinforcing plate 94, and the other side of the first connection portions 95 away from the pressing plate 40 is electrically connected with the second connection portions. It will be appreciated that in some embodiments of the present utility model, the PCM91, the protection plate body 93 and the reinforcing plate 94 are an integral structure, i.e., the PCM91 includes the protection plate body 93, two reinforcing plates 94 and two first connecting portions 95.

The carrier 50 is a member for mounting the PCM91 and the test board 92, and the PCM91 is mounted in the carrier 50 by the test board 92 and the PCM91 before the PCM91 is tested, and then the carrier 50 carrying the test board 92 and the PCM91 is placed in the carrier mounting plate 80 of the base 10.

Test pin assembly 30 includes a test pin 34, and with further reference to fig. 9, a schematic structural diagram of a PCM test device provided with a test pin 34 in accordance with an embodiment of the present utility model is shown. During the movement of the test pin assembly 30 toward the carrier 50, the test pin 34 passes through the platen 40 to contact the contacts 96 of the test plate 92 shown in fig. 8 to effect a test of the PCM91.

In the PCM testing device of the embodiment of the present utility model, the driving member 20 drives the test needle assembly 30 to move towards the carrier 50, the test needle assembly 30 drives the pressing plate 40 to move towards the carrier 50, when the pressing plate 40 moves to press the first connecting portion 95 by the pressing protrusion 41, the first connecting portion 95 and the second connecting portion can be tightly connected, so as to realize stable connection between the PCM91 and the test board 92, and when the test needle 34 of the test needle assembly 30 contacts the contact 96 of the test board 92 for testing, the pressing protrusion 41 can ensure that the first connecting portion 95 and the second connecting portion maintain a stable connection state, so as to avoid the problem of inaccurate testing caused by unstable connection or mutual separation of the first connecting portion 95 and the second connecting portion.

Preferably, the PCM testing device further comprises a limiting plate 60, and referring to fig. 3, a schematic diagram of the position of the limiting plate 60 according to an embodiment of the present utility model is shown. The limiting plate 60 is disposed in the carrier 50, further referring to fig. 6, the limiting plate 60 is formed with a limiting through hole 61, the limiting plate 60 is sandwiched between the PCM91 and the test plate 92, the position of the limiting through hole 61 corresponds to the position of the second connecting portion, and when the PCM91 is placed on the test plate 92, the first connecting portion 95 and the second connecting portion are respectively located at two sides of the limiting through hole 61; when the pressing boss 41 presses the first connection portion 95, the first connection portion 95 moves toward the second connection portion through the limit through hole 61 to achieve tight connection.

The test board 92 is located at the lower side of the limiting board 60, the PCM91 is located at the upper side of the limiting board 60, the position of the PCM91 and the test board 92 is further limited by the arrangement of the limiting board 60, and the limiting through hole 61 provides a connection channel for the connection of the first connection portion 95 and the second connection portion.

When the PCM testing device is in use, when the pressing protrusion 41 does not press the first connection portion 95, there is a gap between the first connection portion 95 and the second connection portion.

Preferably, the PCM91 and the test plate 92 are connected through a connector, one of a male end or a female end of the connector is connected with the PCM91, the other of the male end or the female end of the connector is connected with the test plate 92, and the connector adopts a plug-in connection manner, and when the pressing protrusion 41 presses the first connection portion 95 to be connected with the second connection portion, the male end and the female end of the connector are connected to realize stable connection of the PCM91 and the test plate 92. When the first connecting part 95 is not pressed by the pressing protrusion 41, the male end and the female end of the connector are automatically separated, and the structure can increase the service life of the male end or the female end of the connector on the test board 92, so that the number of the PCMs 91 measured by the test board 92 is increased, and the test cost is saved.

Preferably, referring to fig. 6, a schematic structural view of a limiting plate 60 according to an embodiment of the present utility model is shown; the limiting plate 60 is formed with a limiting groove 62, and referring to fig. 3, an end portion of the PCM91, i.e., a first connection portion 95, may be disposed in the limiting groove 62, and a limiting through hole 61 is formed at a bottom of the limiting groove 62. The position of the PCM91 may be restricted by the position-restricting groove 62 so that the pressing protrusion 41 may be accurately pressed in alignment with the first connection portion 95.

Preferably, referring to fig. 5, a schematic structural diagram of a carrier 50 according to an embodiment of the present utility model is shown; the carrier 50 comprises a first limit groove 51, a second limit groove 52 and a third limit groove 53, the groove bottom of the first limit groove 51, the groove bottom of the second limit groove 52 and the groove bottom of the third limit groove 53 are sequentially increased in the height direction of the carrier 50, a test plate 92 is arranged in the first limit groove 51, a limit plate 60 is arranged in the second limit groove 52, a PCM91 is arranged in the third limit groove 53, a protection plate body 93 of the PCM91 can be arranged in the third limit groove 53, the test plate 92 is positioned on the lower side of the limit plate 60, and the PCM91 is positioned on the upper side of the limit plate 60.

Specifically, the first limiting groove 51, the second limiting groove 52 and the third limiting groove 53 on the carrier 50 are staggered. It will be appreciated that in practical applications, the positions of the first limiting groove 51, the second limiting groove 52 and the third limiting groove 53 on the carrier 50 may be set according to the requirements of use, so as to meet the arrangement requirements of the PCM91 and the test board 92, which is not limited in the embodiment of the present utility model.

Preferably, as shown in fig. 5, the plurality of second limiting grooves 52 are arranged at intervals along the width direction of the carrier 50, and the second limiting grooves 52 extend along the length direction of the carrier 50; the first limiting grooves 51 are arranged at intervals along the length direction of the second limiting groove 52, and one ends of the first limiting grooves 51 extend into the second limiting groove 52; the third limiting grooves 53 are disposed at intervals along the length direction of the second limiting groove 52, and the third limiting grooves 53 are disposed parallel to the width direction of the carrier 50. Wherein, the first limit groove 51 and the third limit groove 53 are respectively positioned at two sides of the width direction of the second limit groove 52. In fig. 5, the X direction refers to the longitudinal direction of the carrier 50, and the Y direction refers to the width direction of the carrier 50.

In one embodiment of the present utility model, the pressing boss 41 is an elastic material member. In this case, the pressing plate 40 may be a pressing plate of the related art, and the elastic material member is connected to the pressing plate 40 by bonding or the like.

In another embodiment of the present utility model, an elastic material member is disposed on the pressing protrusion 41, one end of the elastic material member is connected to the pressing protrusion 41, and the other end of the elastic material member is used for pressing the first connection portion 95.

The elastic material piece is a component with the first connecting portion 95, and because the elastic material piece has elasticity, when the elastic material piece presses the first connecting portion 95, the elastic material piece presses the flexible buckling of the connector in the pressing process, the buckling of the connector is guaranteed not to fall off, the pressing position is not damaged, the strength is evenly increased under the action of the elastic material piece, and a good protection effect is achieved on the PCM91.

Preferably, the elastic material member comprises a foam. The foam rubber is an adhesive tape made of foam materials, has flame retardance, does not contain harmful and toxic substances, does not have residues, does not pollute equipment, does not corrode metal, has the advantages of simple bonding, lasting bonding force and large stripping force, and is suitable for being used in a PCM test device.

Further, foam may be disposed on the reinforcing plate 94 to better protect the PCM91.

It will be appreciated that in practical applications, the elastic material may be other materials meeting the requirements of use, such as elastic rubber, which is not limited in the embodiments of the present utility model.

Preferably, the PCM testing device further comprises an elastic member 71 and a guide post 72, and referring to fig. 2, a schematic structural view of the elastic member 71 and the guide post 72 according to an embodiment of the present utility model is shown. Referring further to fig. 9 and 10, the test needle assembly 30 includes a plurality of needles 34 and a test needle plate 31, the plurality of needles 34 and the test needle plate 31 are fixedly connected, and the test needle plate 31 is connected with the driving member 20; an elastic piece 71 is arranged between the test needle plate 31 and the pressing plate 40, and the test needle plate 31 is connected with the pressing plate 40 through a guide post 72; when the driving member 20 drives the test needle plate 31 to move towards the carrier 50, after the pressing plate 40 moves to contact with the PCM91, the test needle plate 31 moves opposite to the pressing plate 40, the elastic piece 71 deforms and compresses, and the probe 34 passes through the pressing plate through hole 42 on the pressing plate 40 to be connected with the contact 96 of the test plate 92; when the driving member 20 drives the test needle plate 31 to move away from the carrier 50, the elastic member 71 gradually returns to an initial state, such as an undeformed state, for pushing the test needle plate 31 and the pressing plate 40 to move away.

Specifically, the pin 34 is used to make contact with a contact 96 on the test plate 92 to test the PCM91. The plurality of pins 34 pass through the pin plate mounting holes 32 on the test pin plate 31 and are fixedly connected with the test pin plate 31, and when the driving member 20 drives the test pin plate 31 to move, the plurality of pins 34 move along with the test pin plate 31.

In the PCM testing device according to the embodiment of the present utility model, when the driving member 20 drives the test needle plate 31 to move toward the carrier 50, the test needle plate 31 drives the pressing plate 40 to move toward the carrier 50, and the pressing plate 40 presses the PCM91 after moving into contact with the PCM91. The driving member 20 continues to drive the test needle plate 31 to move, at this time, the test needle plate 31 moves opposite to the pressing plate 40, the elastic member 71 accumulates force, the probe 34 passes through the pressing plate through hole 42 on the pressing plate 40 to contact with the contact 96 on the test plate 92, and the test is performed after the probe 34 contacts with the contact 96 on the test plate 92. After the test is completed, the driving member 20 drives the test needle plate 31 to move away from the carrier 50, and the force of the elastic member 71 pushes the test needle plate 31 to move away from the pressing plate 40.

Further, referring to fig. 2, a pressing plate limiting hole 43 is formed on the pressing plate 40, a needle plate limiting post 33 is formed on the testing needle plate 31, and when the testing needle plate 31 and the pressing plate 40 move in opposite directions, the needle plate limiting post 33 is suitable for being inserted into the pressing plate limiting hole 43 to limit the relative position between the testing needle plate 31 and the pressing plate 40, so as to ensure that the measuring needle 34 can accurately pass through the pressing plate through hole 42 on the pressing plate 40.

Preferably, a carrier limiting aperture 54 is provided at an edge of the carrier 50, the carrier limiting aperture 54 being adapted for insertion of the guide post 72.

Specifically, when the pressing plate 40 moves to contact with the PCM91 and then presses the PCM91, and the driving member 20 continues to drive the test needle plate 31 to move, the guide post 72 is inserted into the carrier limiting hole 54, so that the relative position between the test needle plate 31 and the carrier 50 can be accurate, the relative position between the test needle plate 31 and the test plate 92 is further ensured to be accurate, and the probe 34 can be accurately contacted with the contact 96 on the test plate 92.

Preferably, the PCM testing device further comprises a carrier mounting plate 80 connected to the base 10, wherein a carrier recess 81 is provided on the carrier mounting plate 80, and the carrier 50 is adapted to be placed in the carrier recess 81. Carrier mounting plate 80 is used to secure and retain carrier 50. After the carrier 50 is mounted with the PCM91, the carrier 50 is placed in the carrier groove 81, and the carrier 50 is mounted in the PCM testing device simply and conveniently through the arrangement of the carrier groove 81.

Preferably, referring to fig. 11, an elastic component 74 is disposed between the side of the carrier mounting plate 80 away from the carrier 50 and the base 10, and a positioning post 73 is disposed on the base 10; referring specifically to fig. 1, when the driving member 20 drives the test pin assembly 30 and the pressing plate 40 to move toward the carrier 50 and press the carrier 50, the carrier 50 and the carrier mounting plate 80 move downward, the elastic assembly 74 is pressed and stores force, and the positioning post 73 is adapted to be inserted into the mounting plate limiting hole 82 at the bottom of the carrier groove 81, limit the carrier mounting plate 80, and be adapted to abut against a surface of the carrier 50 toward the carrier mounting plate 80. When the driving member 20 drives the test needle assembly 30 and the pressing plate 40 to move away from the carrier 50, the carrier mounting plate 80 is pushed by the elastic assembly 74 to move upwards, and the positioning posts 73 are moved out of the mounting plate limiting holes 82.

The positioning posts 73 are used for limiting the position of the carrier mounting plate 80 in the base 10, so that the position of the carrier mounting plate 80 is accurate, and the PCM testing device has accurate testing. The positioning posts 73 can simultaneously abut against the carrier 50, so that the carrier 50 and the pressing plate 40 are tightly abutted.

When the PCM testing device provided by the embodiment of the utility model is used, the PCM testing device comprises:

the test board 92 is fixedly installed in the first limit groove 51 of the carrier 50, the limit board 60 is fixedly installed in the second limit groove 52, and the PCM91 is installed in the third limit groove 53 in sequence. And then holds the carrier handle 55 and places the carrier 50 in the carrier recess 81 of the carrier mounting plate 80.

Starting the PCM test device, the driving member 20 drives the test needle plate 31 to move downwards, the test needle plate 31 drives the probe 34 and the pressing plate 40 to move downwards, the pressing plate 40 presses the PCM91 after moving into contact with the PCM91, the driving member 20 continues to drive the test needle plate 31 to move, at this time, the distance between the test needle plate 31 and the pressing plate 40 is reduced, the pressing plate 40, the carrier 50 and the carrier mounting plate 80 also move downwards, when the positioning column 73 passes through the mounting plate limiting hole 82 of the carrier mounting plate 80 and then abuts against the carrier 50, the pressing protruding portion 41 of the pressing plate 40 presses the first connecting portion 95 downwards to contact with the second connecting portion, and when the probe 34 in the test needle assembly 30 passes through the pressing plate through hole 42 and then contacts with the contact 96 on the test plate 92, the driving member 20 stops moving. At this time, the PCM91 and the test board 92 are connected through a connector, and a corresponding program is input through connection of the PCM test device and a corresponding computer, so as to obtain a relevant voltage and current internal resistance waiting measurement parameter, and the measurement parameter is compared with a design parameter to determine whether the product is qualified.

When the test is completed, the driving member 20 drives the test needle plate 31 to move away from the carrier 50, and the force of the elastic member 71 pushes the test needle plate 31 to move away from the pressing plate 40. The upward movement of carrier 50 and carrier mounting plate 80 returns to the original position and the end of probe 34 moves back between platen 40 and test needle plate 31.

Then, the carrier 50 is taken out of the carrier mounting plate 80, the tested PCM91 is taken down, and the PCM91 to be tested is mounted in the carrier recess 81 for the next test.

When the PCM testing device is in use, the needle plate limiting posts 33 on the test needle plate 31 are suitable for being inserted into the pressing plate limiting holes 43 of the pressing plate 40, so that the accurate position between the test needle plate 31 and the pressing plate 40 is ensured. The guide posts 72 limit the position between the test needle plate 31 and the platen 40, and the guide posts 72 are also adapted to be inserted into the carrier-limiting holes 54 on the carrier 50 to ensure accurate positions between the test needle plate 31 and the carrier 50. The carrier 50 is disposed in the carrier groove 81 of the carrier mounting plate 80, and the carrier groove 81 can limit the carrier 50, so that the position of the carrier 50 is accurate. The positioning posts 73 on the base 10 are adapted to be inserted into the mounting plate limiting holes 82 to ensure accurate positioning between the base 10 and the carrier mounting plate 80. The base 10 is further provided with a limiting rod 12, and the carrier mounting plate 80 is slidably connected with the limiting rod 12, so that the position between the base 10 and the carrier mounting plate 80 is accurate. In conclusion, the PCM testing device has a plurality of limit structures, so that the PCM testing device has the advantages of accurate testing and high reliability.

The PCM testing device provided by the embodiment of the utility model can be used for simultaneously measuring a plurality of PCMs 91, greatly improves the measuring efficiency in batch operation, reduces the labor cost and the equipment consumption, and avoids the error rate of manual measurement to a great extent. Meanwhile, by positioning and fixing the carrier 50, the standardized operation of measurement is realized, the consistency of each test fixed point is ensured, the measured data is more accurate and convincing, the failure of the battery to cause the reworking waste and the safety risk due to failure of the battery in subsequent finished product assembly is also reduced, and the unqualified battery PCM91 flows out.

It should be noted that, for simplicity of description, the method embodiments are shown as a series of acts, but it should be understood by those skilled in the art that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently in accordance with the embodiments. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred, and that the acts referred to are not necessarily all required for the embodiments of the present application.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims (10)

1. A PCM testing device, characterized in that it comprises a base (10), and a driving member (20), a test needle assembly (30), a pressure plate (40) and a carrier (50) provided on the base (10);

the driving end of the driving member (20) is connected with the test needle assembly (30), the test needle assembly (30) is connected with the pressing plate (40), the pressing plate (40) is positioned between the test needle assembly (30) and the carrier (50), and the pressing plate (40) is provided with a pressing protruding part (41) towards the surface of the carrier (50);

the carrier (50) is used for arranging a PCM (91) and a test board (92), and a first connecting part (95) of the PCM (91) and a second connecting part of the test board (92) are correspondingly arranged;

the driving member (20) drives the test needle assembly (30) and the pressing plate (40) to move towards the carrier (50), the pressing protruding portion (41) presses the first connecting portion (95) to connect the first connecting portion (95) with the second connecting portion, and the test needle (34) of the test needle assembly (30) penetrates through the pressing plate (40) to be in contact connection with the contact (96) of the test plate (92).

2. The PCM testing device according to claim 1, further comprising a limiting plate (60), the limiting plate (60) being provided in the carrier (50), the limiting plate (60) being formed with a limiting through hole (61), the first connecting portion (95) being located at one side of the limiting through hole (61) in the thickness direction of the limiting plate (60), the second connecting portion being located in the limiting through hole (61) or at the other side of the limiting through hole (61) in the thickness direction of the limiting plate (60);

when the pressing boss (41) presses the first connecting portion (95), the first connecting portion (95) moves toward the limiting through hole (61) and is connected with the second connecting portion.

3. PCM testing device according to claim 2, wherein the limiting plate (60) is formed with a limiting groove (62), the end of the PCM (91) being placeable in the limiting groove (62), the bottom of the limiting groove (62) being provided with the limiting through hole (61).

4. PCM testing device according to claim 2, wherein said carrier (50) comprises a first limit groove (51), a second limit groove (52) and a third limit groove (53), the groove bottom of said first limit groove (51), the groove bottom of said second limit groove (52) and the groove bottom of said third limit groove (53) are sequentially increased in the height direction of said carrier (50), said test plate (92) is placed in said first limit groove (51), said limit plate (60) is placed in said second limit groove (52), and said PCM (91) is placed in said third limit groove (53).

5. The PCM testing device according to claim 4, wherein,

the second limiting grooves (52) are arranged at intervals along the width direction of the carrier (50), and the second limiting grooves (52) extend along the length direction of the carrier (50);

the first limit grooves (51) are arranged at intervals along the length direction of the second limit groove (52), and one ends of the first limit grooves (51) extend into the second limit groove (52);

the third limiting grooves (53) are arranged at intervals along the length direction of the second limiting groove (52), and the third limiting grooves (53) are arranged parallel to the width direction of the carrier (50).

6. The PCM testing device according to claim 1, wherein,

the pressing protruding part (41) is an elastic material piece; or alternatively, the first and second heat exchangers may be,

the pressing protruding portion (41) is provided with an elastic material piece, one end of the elastic material piece is connected with the pressing protruding portion, and the other end of the elastic material piece is used for pressing the first connecting portion (95).

7. PCM testing device according to claim 1, wherein said test needle assembly (30) comprises a plurality of pins (34) and a test needle plate (31), a plurality of said pins (34) being fixedly connected to said test needle plate (31), said test needle plate (31) being connected to the drive end of said drive member (20);

an elastic piece (71) is arranged between the test needle plate (31) and the pressing plate (40), and the test needle plate (31) is connected with the pressing plate (40) through a guide column (72);

when the driving member (20) drives the test needle plate (31) to move towards the carrier (50), after the pressing plate (40) moves to be in contact with the PCM (91), the test needle plate (31) and the pressing plate (40) move in opposite directions, the elastic piece (71) deforms and compresses, and the measuring needle (34) passes through a pressing plate through hole (42) on the pressing plate (40) to be in contact connection with a contact point (96) of the test plate (92); the elastic piece (71) is used for pushing the test needle plate (31) to separate from the pressing plate (40) for movement when the driving component (20) drives the test needle plate (31) to move away from the carrier (50).

8. PCM testing device according to claim 7, wherein a carrier limiting hole (54) is provided at the edge of the carrier (50), said carrier limiting hole (54) being adapted for insertion of the guiding stud (72).

9. PCM testing device according to claim 1, further comprising a carrier mounting plate (80) connected to the base (10), said carrier mounting plate (80) being provided with a carrier recess (81), said carrier (50) being adapted to be placed in said carrier recess (81).

10. PCM testing device according to claim 9, wherein an elastic element (74) is arranged between the base (10) and a side of the carrier mounting plate (80) remote from the carrier (50), and wherein a positioning column (73) is arranged on the base (10);

the driving component (20) drives the test needle assembly (30) and the pressing plate (40) to move towards the carrier (50) and press the carrier (50), the carrier (50) and the carrier mounting plate (80) move downwards, and the positioning column (73) is suitable for being inserted into a mounting plate limiting hole (82) at the bottom of the carrier groove (81), limiting the carrier mounting plate (80) and is suitable for being abutted with the carrier (50).

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