CN109613350B - Automatic test system for battery protection device - Google Patents

Automatic test system for battery protection device Download PDF

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Publication number
CN109613350B
CN109613350B CN201811331826.0A CN201811331826A CN109613350B CN 109613350 B CN109613350 B CN 109613350B CN 201811331826 A CN201811331826 A CN 201811331826A CN 109613350 B CN109613350 B CN 109613350B
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CN
China
Prior art keywords
circuit board
movable plates
main control
battery protection
control module
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CN201811331826.0A
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Chinese (zh)
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CN109613350A (en
Inventor
王彦兵
黄星云
刘江涛
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Sgs Cstc Standards Technical Services Co ltd
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Sgs Cstc Standards Technical Services Co ltd
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Priority to CN201811331826.0A priority Critical patent/CN109613350B/en
Publication of CN109613350A publication Critical patent/CN109613350A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Abstract

The invention discloses an automatic test system of a battery protection device, which comprises: the cabinet body, its inside is provided with the horizontally shelf of multilayer from last to down, is provided with circuit board fixing device on the intermediate level shelf, circuit board fixing device includes: a tank body, two movable plates, a top plate and the like; one end of the main control module circuit board is connected with the narrow bottom surface of a strip block body with an isosceles trapezoid cross section, and one end of the main control module circuit board, which is connected with the strip block body, can be inserted between the two movable plates; the wiring terminal is arranged on the lowest shelf and used for connecting a battery protection device to be tested, and the wiring terminal is connected with the main control module circuit board; the main control module circuit board is used for testing the battery protection device to be tested according to the method in GB 31241. The circuit board in the invention is directly inserted in the groove body without being fixed by screws, so the invention is convenient to disassemble and does not worry about the loss of the screws.

Description

Automatic test system for battery protection device
Technical Field
The invention relates to the field of test equipment. More particularly, the present invention relates to an automatic test system for a battery protection device.
Background
Lithium batteries are an important part of new energy industry, and as lithium batteries have the advantages of high specific capacity, low self-discharge rate and high cost performance, numerous enterprises are put into research and development of lithium batteries, but the lithium batteries need to avoid explosion caused by contact of positive and negative electrode materials due to the use of the positive and negative electrode materials, so that the batteries need to be prevented from being punctured and the contact of the positive and negative electrode materials of the batteries needs to be prevented in the charging and discharging processes, therefore, the lithium batteries are correspondingly provided with battery protection devices which need to be tested before use to check whether the battery protection devices can protect the lithium batteries, so that a battery protection device test system also appears together, the existing battery protection device test system adjusts the test conditions of the battery protection devices through integrated circuit boards, and the common integrated circuit boards are fixed in a case through screws, if a fault occurs, the ic board needs to be repaired, which requires all the screws to be removed, which is extremely cumbersome and the screws are easily lost.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.
It is still another object of the present invention to provide an automatic test system for battery protection devices, in which the circuit board is directly inserted into the slot without being fixed by screws, and the automatic test system is easy to disassemble without worrying about the loss of screws.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided an automatic test system for a battery protection device, comprising:
the cabinet body, its inside is provided with the horizontally shelf of multilayer from last to down, is provided with circuit board fixing device on the intermediate level shelf, circuit board fixing device includes:
the groove body is arranged on the shelf and has an upward opening, a pair of horizontal supporting rods is arranged on two inner walls of the groove body along the length direction, two pairs of supporting rods on the inner walls of the groove body are positioned at the same height, and the tail end of each supporting rod is connected with a vertically placed circular ring;
the center of a pair of opposite end surfaces of each movable plate is respectively provided with a rotating shaft, the two rotating shafts of each movable plate are respectively and rotatably connected with the circular rings on the pair of supporting rods, the two movable plates are obliquely arranged and form a V-shaped structure with an upward opening, the upper end edge of each movable plate is abutted against the inner wall of the groove body, the end surface of each movable plate provided with the rotating shaft is provided with a horizontal wheel shaft close to the lower edge, each wheel shaft is provided with a roller, and the lowest point of each roller is lower than the lower end edge of the movable plate;
the top plate is horizontally arranged below the roller, and a plurality of springs which stretch in the vertical direction are arranged between the top plate and the inner bottom surface of the groove body, so that the top plate is always abutted against the roller;
the two inner walls of the groove body, which are provided with the supporting rods, are provided with strip-shaped through holes along the vertical direction, the upper ends of the strip-shaped through holes are flush with the upper stroke limit of the top plate, the lower ends of the strip-shaped through holes are flush with the lower stroke limit of the top plate, the end surfaces of the top plate, which are respectively close to the two through holes, are respectively connected with a horizontal pressing plate, and the pressing plates penetrate through the strip-shaped through holes and extend out of the groove body;
the main control module circuit board is connected with the narrow bottom surface of a long strip block body with an isosceles trapezoid cross section, the width of the wide bottom surface of the long strip block body is slightly larger than the center distance between the opposite plate surfaces of the two movable plates, and the long strip block body is made of rubber, so that one end of the main control module circuit board, which is connected with the long strip block body, can be inserted between the two movable plates;
the wiring terminal is arranged on the lowest shelf and used for connecting a battery protection device to be tested, and the wiring terminal is connected with the main control module circuit board;
the main control module circuit board is used for testing the battery protection device to be tested according to the method in GB 31241.
Preferably, horizontal strip-shaped bulges are arranged on the opposite plate surfaces of the two movable plates and are positioned on the part of the plate surfaces of the movable plates close to the upper end edges;
the inclined plane of the strip-shaped block body is provided with a groove matched with the strip-shaped bulge.
Preferably, the four corners of the bottom surface of the cabinet body are respectively provided with a universal wheel.
Preferably, a heat dissipation window is arranged on the side wall of the cabinet body, and the heat dissipation window is arranged at the part, facing the middle layer shelf and between the middle layer shelf and the shelf on the middle layer.
Preferably, the number of the springs is three, and the three springs are respectively arranged at the positions, close to the two ends, of the bottom surface of the groove body and at the middle of the bottom surface of the groove body.
Preferably, the opposite plate surfaces of the two movable plates are provided with wear-resistant coatings.
The invention at least comprises the following beneficial effects: the main control module circuit board is inserted between the two movable plates in the slot body, so that the movable plates change the inclined state and clamp the main control module circuit board, the main control module circuit board is fixed without considering the residual screw holes on the surface of the circuit board and using screws for fixing, the available area of the circuit board is enlarged, the circuit board is convenient to disassemble, and the screws are not lost.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic side view of a main control module circuit board according to an embodiment of the present invention;
fig. 2 is a schematic side view of a circuit board fixing device according to an embodiment of the invention;
fig. 3 is a schematic view of an internal structure of the circuit board fixing device according to an embodiment of the invention;
fig. 4 is a schematic external structural view of a circuit board fixing device according to an embodiment of the present invention;
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
As shown in fig. 1 to 4, the present invention provides an automatic test system for a battery protection device, comprising:
the cabinet body, its inside is provided with the horizontally shelf of multilayer from last to down, is provided with circuit board fixing device on the intermediate level shelf, circuit board fixing device includes:
the tank body 1 is arranged on the shelf and has an upward opening, a pair of horizontal supporting rods 2 are arranged on two inner walls of the tank body 1 along the length direction, two pairs of supporting rods 2 on the inner walls of the tank body 1 are at the same height, and the tail end of each supporting rod 2 is connected with a vertically placed ring 3;
the two movable plates 4 are respectively provided with a rotating shaft at the center of a pair of opposite end faces of each movable plate 4, the two rotating shafts of each movable plate 4 are respectively and rotatably connected in the circular rings 3 on the pair of supporting rods 2, the two movable plates 4 are obliquely arranged and form a V-shape with an upward opening, the upper end edge of each movable plate 4 is abutted against the inner wall of the tank body 1, a horizontal wheel shaft is arranged at the position, close to the lower edge, of the end face of each movable plate 4, where the rotating shaft is arranged, a roller 5 is arranged on each wheel shaft, and the lowest point of each roller 5 is lower than the lower end edge of;
the top plate 6 is horizontally arranged below the roller 5, a plurality of springs 7 which stretch in the vertical direction are arranged between the top plate 6 and the inner bottom surface of the groove body 1, and the springs 7 are all in a compressed state, so that the top plate 6 is always abutted against the roller 5;
the two inner walls of the trough body 1, which are provided with the supporting rods 2, are provided with strip-shaped through holes 8 along the vertical direction, the upper ends of the strip-shaped through holes 8 are flush with the upper limit of the stroke of the top plate 6, when the upper end edge of the movable plate 4 or the roller 5 at the lower end of the movable plate 4 butts against the inner wall of the trough body 1, the top plate 6 is propped by the roller 5 and cannot move upwards, the position of the top plate 6 is the upper limit of the stroke of the top plate 6 at the moment, the lower ends of the strip-shaped through holes 8 are flush with the lower limit of the stroke of the top plate 6, when the spring 7 is compressed to the maximum, the top plate 6 cannot move downwards, the position of the top plate 6 is the lower limit of the stroke of the top plate 6 at the moment, part of the end surfaces, which are;
the main control module circuit board 10 is characterized in that one end of the main control module circuit board 10 is connected with a narrow bottom surface of a long strip block 11 with an isosceles trapezoid cross section, the width of the wide bottom surface of the long strip block 11 is slightly larger than the center distance between the opposite plate surfaces of the two movable plates 4, the long strip block 11 is made of rubber, the rubber is hard rubber and has slight elasticity, so that one end of the main control module circuit board 10, which is connected with the long strip block 11, can be inserted between the two movable plates 4;
the wiring terminal is arranged on the lowest shelf and used for connecting a battery protection device to be tested, and the wiring terminal is connected with the main control module circuit board 10;
the main control module circuit board 10 is used for testing the battery protection device to be tested according to the method in GB31241, the main control module in the main control module circuit board 10 is preset with an overvoltage charging test program, an overcurrent charging test program, an undervoltage discharging test program, an overload discharging test program and a short circuit test program according to the content of chapter 10 in GB31241, and logic functions of all the test programs are compiled according to the method in GB31241, so the method is not described in detail here.
In the above embodiment, during the use process, the end of the main control module circuit board 10 connected with the strip block 11 is inserted between the two movable plates 4, and since the two movable plates 4 form the V-shape with the upward opening, the strip block 11 can be inserted smoothly before entering the center height of the two movable plates 4. When the strip-shaped block 11 enters the central height of the two movable plates 4, since the width of the wide bottom surface of the strip-shaped block 11 is slightly greater than the central distance between the opposite plate surfaces of the two movable plates 4, a slight force needs to be applied to make the strip-shaped block 11 pass through the central height of the two movable plates 4, or the main control module circuit board 10 is slightly inclined to make the strip-shaped block 11 pass through the central height of the two movable plates 4. When the main control module circuit board 10 continues to be inserted downwards, because the width between the two movable plates 4 gradually decreases, the edge of the wide bottom surface of the strip-shaped block 11 continuously pushes the lower end edges of the two movable plates 4 to approach the inner walls of the tank body 1 at both sides, after the two movable plates 4 change the inclination trend through the vertical state, the top plate 6 can provide a moment for the roller 5 under the action of the spring 7, so that the two movable plates 4 continue to approach the inner walls of the tank body 1, at this time, the upper end edges of the two movable plates 4 approach each other, and simultaneously, because the top plate 6 is always in contact with the roller 5 under the action of the spring 7, the lower end edges of the movable plates 4 rely on the rolling connection between the roller 5 and the top plate 6 in the process of approaching the inner walls of the tank body 1, and. When the roller 5 connected to the lower ends of the movable plates 4 abuts against the inner wall of the tank 1, the movable plates 4 cannot rotate, the top plate 6 abuts against the roller 5 under the action of the spring 7, the distance between the upper ends of the two movable plates 4 is smaller than the distance between the lower ends of the two movable plates 4, namely, a V-shape with a downward opening is formed, the strip-shaped block 11 is fixed in a space formed by the two movable plates 4 and the top plate 6, and meanwhile, the upper ends of the two movable plates 4 are respectively clamped with the strip-shaped block, so that the main control module circuit board 10 is fixed. When the main control module circuit board 10 needs to be taken out, the pressing plate 9 is pressed by hands, so that the top plate 6 is not contacted with the roller 5, the movable plate 4 recovers the rotation capacity, and at the moment, the main control module circuit board 10 only needs to be pulled upwards.
In the above embodiment, the main control module circuit board 10 is inserted between the two movable plates 4 in the tank body 1, so that the movable plates 4 change the inclination state and clamp the main control module circuit board 10, thereby fixing the main control module circuit board 10, and only pressing the pressing plate 9 to pull out the main control module circuit board 10 when detaching the main control module circuit board 10. The whole dismounting process is simple, the problem that screw holes are remained on the surface of the circuit board does not need to be considered, and the circuit board is not fixed by screws, so that the available area of the circuit board is enlarged, the dismounting is convenient, and the screws are not lost.
In another embodiment, horizontal elongated protrusions 12 are disposed on the opposite plate surfaces of the two movable plates 4, and the elongated protrusions 12 are located on a part of the plate surface of the movable plate 4 near the upper end edge;
the inclined plane of the strip block 11 is provided with a groove 13 matched with the strip bulge 12.
In the use process of the above embodiment, when the upper end edges of the two movable plates 4 approach each other until they abut against the inclined plane of the elongated block 11, the elongated protrusion 12 just fits into the groove 13, so that the two movable plates 4 can tightly clamp the elongated block 11, and the fixation is firmer.
In another embodiment, the four corners of the bottom surface of the cabinet body are respectively provided with a universal wheel, so that a user can conveniently move the automatic testing system of the battery protection device to different testing places.
In another embodiment, the side wall of the cabinet body is provided with a heat dissipation window facing the middle shelf and the part between the middle shelf and the middle shelf on the middle shelf, so that heat generated by the main control module circuit board 10 in the working process can be dissipated in time, and the circuit board is prevented from being burnt due to overhigh temperature.
In another embodiment, three springs 7 are respectively disposed at the positions near the two ends of the bottom surface of the tank body 1 and at the middle of the bottom surface of the tank body 1, so that the top plate 6 is stressed uniformly, the force transmitted by the top plate 6 to the movable plates 4 is also uniform, and the main control module circuit board 10 can be conveniently disassembled and assembled by a user when the movement of the two movable plates 4 tends to be uniform.
In another embodiment, the opposite plate surfaces of the two movable plates 4 are provided with wear-resistant coatings, and since the opposite plate surfaces of the two movable plates 4 need to rub against the strip-shaped blocks 11 for many times, in order to reduce the wear on the movable plates 4, the wear-resistant coatings are coated on the plate surfaces of the movable plates 4, so as to prolong the service life of the movable plates 4.
While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims (6)

1. Automatic test system of battery protection device, its characterized in that includes:
the cabinet body, its inside is provided with the horizontally shelf of multilayer from last to down, is provided with circuit board fixing device on the intermediate level shelf, circuit board fixing device includes:
the groove body is arranged on the shelf and has an upward opening, a pair of horizontal supporting rods is arranged on two inner walls of the groove body along the length direction, two pairs of supporting rods on the inner walls of the groove body are positioned at the same height, and the tail end of each supporting rod is connected with a vertically placed circular ring;
the center of a pair of opposite end surfaces of each movable plate is respectively provided with a rotating shaft, the two rotating shafts of each movable plate are respectively and rotatably connected with the circular rings on the pair of supporting rods, the two movable plates are obliquely arranged and form a V-shaped structure with an upward opening, the upper end edge of each movable plate is abutted against the inner wall of the groove body, the end surface of each movable plate provided with the rotating shaft is provided with a horizontal wheel shaft close to the lower edge, each wheel shaft is provided with a roller, and the lowest point of each roller is lower than the lower end edge of the movable plate;
the top plate is horizontally arranged below the roller, and a plurality of springs which stretch in the vertical direction are arranged between the top plate and the inner bottom surface of the groove body, so that the top plate is always abutted against the roller;
the two inner walls of the groove body, which are provided with the supporting rods, are provided with strip-shaped through holes along the vertical direction, the upper ends of the strip-shaped through holes are flush with the upper stroke limit of the top plate, the lower ends of the strip-shaped through holes are flush with the lower stroke limit of the top plate, the end surfaces of the top plate, which are respectively close to the two through holes, are respectively connected with a horizontal pressing plate, and the pressing plates penetrate through the strip-shaped through holes and extend out of the groove body;
the main control module circuit board is connected with the narrow bottom surface of a long strip block body with an isosceles trapezoid cross section, the width of the wide bottom surface of the long strip block body is slightly larger than the center distance between the opposite plate surfaces of the two movable plates, and the long strip block body is made of rubber, so that one end of the main control module circuit board, which is connected with the long strip block body, can be inserted between the two movable plates;
the wiring terminal is arranged on the lowest shelf and used for connecting a battery protection device to be tested, and the wiring terminal is connected with the main control module circuit board;
the main control module circuit board is used for testing the battery protection device to be tested according to the method in GB 31241.
2. The automatic test system for battery protection devices of claim 1, wherein the opposing faces of the two movable plates are each provided with a horizontal elongated protrusion, and the elongated protrusions are located on a portion of the faces of the movable plates near the upper end edges;
the inclined plane of the strip-shaped block body is provided with a groove matched with the strip-shaped bulge.
3. The automatic testing system of claim 1, wherein a universal wheel is disposed at each of four corners of the bottom surface of the cabinet.
4. The automatic testing system for battery protection devices of claim 1, wherein the side wall of the cabinet body facing the middle shelf and the upper shelf of the middle shelf is provided with a heat dissipation window.
5. The automatic testing system of claim 1, wherein three springs are provided, and are respectively disposed at the bottom surface of the tank body near the two ends and at the middle of the bottom surface of the tank body.
6. The automatic test system for battery protection devices of claim 1, wherein the opposing faces of the two movable plates are provided with an abrasion resistant coating.
CN201811331826.0A 2018-11-09 2018-11-09 Automatic test system for battery protection device Active CN109613350B (en)

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Application Number Priority Date Filing Date Title
CN201811331826.0A CN109613350B (en) 2018-11-09 2018-11-09 Automatic test system for battery protection device

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Application Number Priority Date Filing Date Title
CN201811331826.0A CN109613350B (en) 2018-11-09 2018-11-09 Automatic test system for battery protection device

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CN109613350B true CN109613350B (en) 2020-09-01

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0709685A1 (en) * 1994-10-26 1996-05-01 GENERAL ELEKTRONIK GmbH bei MAGDEBURG Electrical measuring apparatus with battery compartment with access protection
CN102117992A (en) * 2011-03-01 2011-07-06 慈溪市公牛电器有限公司 Anti-falling socket
CN201955401U (en) * 2010-03-29 2011-08-31 刘辉国 Automatic test equipment for battery protection board
CN102360048A (en) * 2011-09-05 2012-02-22 江苏天鹏电源有限公司 Detection device for lithium ion battery protection plate
CN202404172U (en) * 2011-12-27 2012-08-29 浙江天能能源科技有限公司 Device for detecting lithium battery pack protection board
CN204076077U (en) * 2014-10-15 2015-01-07 惠州市兴源自动化设备有限公司 Battery protection plate positioning device
CN107498481A (en) * 2017-07-31 2017-12-22 无锡厚发自动化设备有限公司 A kind of clamp method of frock clamp
CN206990640U (en) * 2017-08-09 2018-02-09 福建猛狮新能源科技有限公司 A kind of lithium ion battery protecting plate detection means

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0709685A1 (en) * 1994-10-26 1996-05-01 GENERAL ELEKTRONIK GmbH bei MAGDEBURG Electrical measuring apparatus with battery compartment with access protection
CN201955401U (en) * 2010-03-29 2011-08-31 刘辉国 Automatic test equipment for battery protection board
CN102117992A (en) * 2011-03-01 2011-07-06 慈溪市公牛电器有限公司 Anti-falling socket
CN102360048A (en) * 2011-09-05 2012-02-22 江苏天鹏电源有限公司 Detection device for lithium ion battery protection plate
CN202404172U (en) * 2011-12-27 2012-08-29 浙江天能能源科技有限公司 Device for detecting lithium battery pack protection board
CN204076077U (en) * 2014-10-15 2015-01-07 惠州市兴源自动化设备有限公司 Battery protection plate positioning device
CN107498481A (en) * 2017-07-31 2017-12-22 无锡厚发自动化设备有限公司 A kind of clamp method of frock clamp
CN206990640U (en) * 2017-08-09 2018-02-09 福建猛狮新能源科技有限公司 A kind of lithium ion battery protecting plate detection means

Non-Patent Citations (1)

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Title
"电动车锂电池保护板检测仪的设计";安桂雪;《中国优秀硕士学位论文全文数据库 (工程科技Ⅱ辑)》;20160315;第5-14页 *

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