CN209764937U - lithium battery module open circuit voltage detection device - Google Patents

Abstract

The utility model discloses a lithium cell module open circuit voltage detection device belongs to the voltage measurement device field. The utility model discloses a lithium battery module open circuit voltage detection device, including base, side riser, lifter plate, thimble assembly and lift control mechanism, be equipped with two at least thimble mounting grooves along length direction parallel interval on the lifter plate, all be equipped with a plurality of groups thimble assemblies in each thimble mounting groove, can conveniently adjust the position of multiunit thimble on the lifter plate to can measure the total voltage of lithium battery module, the voltage of a certain electric core and the total voltage that many electric cores are connected in a flexible way, realize the nimble detection of old and useless battery module open circuit voltage, disassemble for old and useless battery module and recycle and provide data support; and, thimble assembly adopts the modular structure design, is convenient for change corresponding thimble assembly according to the electric core span difference of different lithium cell modules, adopts construction bolt and thimble mounting groove cooperation to install, and the thimble assembly position adjustment of being convenient for is fixed.

Description

Lithium battery module open circuit voltage detection device

Technical Field

The utility model relates to a power detection device, more specifically say, relate to a lithium cell module open circuit voltage detection device.

Background

the power lithium battery is widely applied to the field of new energy automobiles, and the gradient utilization lithium battery used for retirement on the automobiles is already practically and widely applied to other industries. The power lithium battery module that retires got off need be disassembled and reassembled and utilize usually, before disassembling the battery module, will carry out open circuit voltage's detection to module and electric core, if electric core or module have the zero voltage condition, need further to judge whether this electric core or module is valuable to disassemble. Therefore, the open-circuit voltage detection of the lithium battery module and the battery core is a necessary process before the disassembly of the waste battery module, and no special device is available for the open-circuit voltage detection of the battery module at present.

The Chinese patent number ZL201721238625.7, the publication date of the authorization is 2018, 5 and 11 months, and the name of the invention creation is as follows: the application relates to a detection device for a battery module, which comprises a base, a plurality of positioning blocks arranged on the base and a testing mechanism arranged on one side of the positioning blocks; the testing mechanism comprises a vertical plate, a slide rail vertically arranged on the vertical plate, a lifting plate in sliding fit with the slide rail, a cylinder for driving the lifting plate to slide, an upper die detachably connected with the lifting plate, and a plurality of testing probes arranged on the upper die. During detection, a tool to be detected is placed on the base, after the tool is positioned by the positioning blocks, the air cylinder of the testing mechanism drives the lifting plate to descend along the sliding rail to drive the upper die to descend, the total positive voltage and the total negative voltage of the battery pack, which are stretched into the tool, of the testing probes are detected, if the detected total positive voltage and the detected total negative voltage of the battery pack are set values, the battery pack core is placed correctly, and if the detected total positive voltage and the detected total negative voltage of the battery pack are not set values, the battery pack core is placed incorrectly. This application provides a device that can detect battery package electric core voltage, its weak point lies in:

(1) The detection can be only carried out aiming at a specific battery pack structure, when the front and back side structures of a battery pack battery core are different, the upper die needs to be integrally replaced, so that test probes which are distributed correspondingly are adopted, and the equipment investment cost is increased;

(2) The device can only detect the total positive voltage and the total negative voltage of the battery pack, cannot flexibly measure the monomer voltage or the total voltage of part of battery cells connected together, and has poor detection flexibility.

Therefore, the technical solution of the above patent application is not suitable for detecting the open circuit voltage of the waste battery module.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model aims to overcome the defects in the prior art, and provides a lithium battery module open-circuit voltage detection device, which adopts the technical scheme of the utility model, the thimble assembly is designed into a modular structure and is arranged in the thimble mounting groove of the lifting plate, and the positions of a plurality of thimbles on the lifting plate can be conveniently adjusted, thereby flexibly measuring the total voltage of the lithium battery module, the voltage of a certain electric core and the total voltage of the connection of a plurality of electric cores, realizing the flexible detection of the open-circuit voltage of the waste battery module, and providing data support for the disassembly and reuse of the waste battery module; moreover, the whole detection device is simple in structure and flexible and convenient to operate, and the spring thimble ensures the detection to be rapid and stable.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

The utility model discloses a lithium battery module open circuit voltage detection device, including base, side riser, lifter plate, thimble assembly and lifting control mechanism, the base on be equipped with the lithium battery module location complex limit baffle that awaits measuring, the side riser vertically install in one side of base, the lifter plate install on the side riser through guiding mechanism, can be on the vertical elevating movement of side riser, thimble assembly install on the lifter plate, lifting control mechanism install in the top of side riser to be connected with the lifter plate, be used for controlling the lifter plate to move from top to bottom; the lifter plate on be equipped with two at least thimble mounting grooves along length direction parallel interval, all be equipped with a plurality of groups of thimble assemblies in every thimble mounting groove, thimble assembly include thimble installation piece, spring thimble and construction bolt, the both ends of thimble installation piece respectively be equipped with a set of spring thimble, the middle part of thimble installation piece be equipped with the bolt hole, the thimble installation piece locate the thimble installation bottom of lifter plate, and construction bolt passes the bolt hole that thimble mounting groove and thimble installation piece and is connected, presss from both sides the lifter plate between the cap of thimble installation piece and construction bolt.

furthermore, the bottom of the thimble mounting groove is also provided with a guide groove matched with the width of the thimble mounting block, and the thimble mounting block is positioned and mounted in the guide groove.

furthermore, the lifting control mechanism comprises an operating rod, a connecting rod, a guide sleeve and a lifting pressure rod, wherein one end of the operating rod is hinged to the side vertical plate, the middle of the operating rod is hinged to one end of the connecting rod, the other end of the connecting rod is hinged to one end of the lifting pressure rod, the other end of the lifting pressure rod penetrates through the guide sleeve and is fixedly connected with the lifting plate, and the guide sleeve is fixed to the side vertical plate through a support.

Furthermore, the guide mechanism comprises two slide rails vertically arranged on the side vertical plate and two slide blocks arranged on the lifting plate, and the slide blocks are in sliding fit with the corresponding slide rails.

Furthermore, the slide rail be the polished rod, the slider be the sliding sleeve, the polished rod on still overlap the reset spring that is located the lifter plate bottom.

3. Advantageous effects

adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses a lithium battery module open circuit voltage detection device, it includes the base, the side riser, the lifter plate, thimble assembly and lifting control mechanism, be equipped with two at least thimble mounting grooves along length direction parallel interval on the lifter plate, all be equipped with a plurality of groups thimble assembly in each thimble mounting groove, can conveniently adjust the position of multiunit thimble on the lifter plate, thereby can measure the total voltage of lithium battery module, the voltage of certain electric core and the total voltage that many electric cores are connected together in a flexible way, realize the nimble detection of old and useless battery module open circuit voltage, disassemble and recycle for old and useless battery module and provide data support; the thimble assembly comprises a thimble mounting block, a spring thimble and a mounting bolt, the thimble assembly is designed in a modular structure, so that the corresponding thimble assembly can be conveniently replaced according to different cell spans of different lithium battery modules, and the mounting bolt is matched with the thimble mounting groove for mounting, so that the position of the thimble assembly can be conveniently adjusted and fixed;

(2) The utility model discloses a lithium battery module open circuit voltage detection device, the bottom of its thimble mounting groove still is equipped with the guide way with the width looks adaptation of thimble installation piece, and thimble installation piece location is installed in above-mentioned guide way, still can guarantee when thimble assembly position control that the position of two spring thimbles on it does not shift, has guaranteed the installation accuracy of thimble assembly on the lifter plate;

(3) the utility model discloses a lithium battery module open circuit voltage detection device, its lift control mechanism adopts the manual control mode, realizes the lift motion control of lifter plate through the lever principle of action bars, and simple structure is compact, and the operation is light and convenient;

(4) The utility model discloses a lithium battery module open circuit voltage detection device, its guide mechanism's slide rail is the polished rod, and the slider is the sliding sleeve, still overlaps on the polished rod to be equipped with the reset spring who is located the lifter plate bottom, and the lifter plate of being convenient for resets to the upper after measuring for it is more convenient to detect the operation;

(5) The utility model discloses a lithium cell module open circuit voltage detection device, whole detection device simple structure, the flexible operation is convenient, and the spring thimble has guaranteed to detect the rapid stabilization.

Drawings

Fig. 1 is a schematic structural diagram of an open-circuit voltage detection device for a lithium battery module according to the present invention;

Fig. 2 is a schematic view of an installation structure of the thimble assembly on the lifting plate in the open-circuit voltage detection device for a lithium battery module according to the present invention (a bottom view of the lifting plate);

Fig. 3 is a schematic view of a three-dimensional structure of an operating state of the open-circuit voltage detection device for a lithium battery module according to the present invention;

fig. 4 is the utility model discloses a lithium cell module open circuit voltage detection device's operating condition looks sideways at schematic structure.

The reference numerals in the schematic drawings illustrate:

1. A base; 1-1, a limit baffle; 2. a side vertical plate; 2-1, a slide rail; 3. a lifting plate; 3-1, a sliding block; 3-2, mounting a thimble mounting groove; 4. a thimble assembly; 4-1, a thimble mounting block; 4-2, spring ejector pins; 4-3, installing a bolt; 5. a lift control mechanism; 5-1, operating rod; 5-2, connecting rod; 5-3, a guide sleeve; 5-4, lifting compression bar; 6. the lithium battery module to be tested.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Examples

Referring to fig. 1 to 4, the open-circuit voltage detection device for lithium battery module in this embodiment includes a base 1, a side plate 2, a lifting plate 3, a thimble assembly 4 and a lifting control mechanism 5, wherein the base 1 is provided with a limit baffle 1-1 in positioning fit with a lithium battery module 6 to be detected as an installation positioning component of the lithium battery module 6 to be detected, the limit baffle 1-1 adopts an "L" shaped structure, and the lithium battery module 6 to be detected can be rapidly positioned by leaning against the limit baffle 1-1. In order to match with the positioning of different lithium battery modules, the mounting position of the limiting baffle 1-1 on the base 1 is adjustable, specifically, a plurality of groups of mounting holes distributed at intervals can be arranged on the base 1, and different mounting holes can be selected to fix the limiting baffle 1-1 according to requirements. The side vertical plate 2 is used as a supporting part of the whole detection device and forms a frame body of the detection device with the base 1, the side vertical plate 2 is vertically arranged on one side of the base 1, the lifting plate 3 is horizontally arranged on the side vertical plate 2 through a guide mechanism and can vertically move up and down on the side vertical plate 2, the ejector pin assembly 4 is arranged on the lifting plate 3 and can move downwards along with the lifting plate 3 to contact with the positive and negative electrodes of the lithium battery module 6 to be detected, and voltage detection is realized; the lifting control mechanism 5 is arranged at the top of the side vertical plate 2, is connected with the lifting plate 3 and is used for controlling the lifting plate 3 to move up and down. In this embodiment, at least two thimble installation grooves 3-2 are arranged on the lifting plate 3 at intervals in parallel along the length direction, each thimble installation groove 3-2 is provided with a plurality of groups of thimble assemblies 4 therein, and the thimble assemblies 4 can freely adjust the positions thereof in the corresponding thimble installation grooves 3-2. Referring to fig. 2, the thimble assembly 4 comprises a thimble mounting block 4-1, a spring thimble 4-2 and a mounting bolt 4-3, wherein a group of spring thimbles 4-2 are respectively arranged at two ends of the thimble mounting block 4-1, a bolt hole is arranged in the middle of the thimble mounting block 4-1, the thimble mounting block 4-1 is arranged at the bottom of a thimble mounting groove 3-2 of the lifting plate 3, and the mounting bolt 4-3 penetrates through the thimble mounting groove 3-2 to be connected with the bolt hole of the thimble mounting block 4-1, so that the lifting plate 3 is clamped between the thimble mounting block 4-1 and a cap head of the mounting bolt 4-3. By adopting the structure of the thimble assembly 4 and adopting a modular structure design, the corresponding thimble assembly can be conveniently replaced according to different cell spans of different lithium battery modules, and the thimble assembly 4 can be conveniently adjusted and fixed by adopting the mounting bolt 4-3 to be matched with the thimble mounting groove 3-2 for mounting; during specific operation, the mounting bolts 4-3 can be loosened according to the positions of the positive electrode and the negative electrode of the battery core, which are detected as required, then the thimble mounting block 4-1 slides in the thimble mounting groove 3-2 to the corresponding position, and then the mounting bolts 4-3 are screwed down, so that the adjustment and fixing operations are simple and convenient, and the thimble assembly 4 can be replaced quickly. In addition, in order to ensure the installation accuracy of the thimble assembly 4 on the lifting plate 3, in this embodiment, the bottom of the thimble installation groove 3-2 is further provided with a guide groove (as shown in fig. 2) adapted to the width of the thimble installation block 4-1, and the thimble installation block 4-1 is positioned and installed in the guide groove, so that the position of two spring thimbles 4-2 on the thimble assembly 4 can still be ensured not to be deviated when the position of the thimble assembly 4 is adjusted; and a spring thimble 4-2 is used as a measuring contact, so that the detection is rapid and stable. It should be noted that the tail of the pogo pin 4-2 is connected to the data acquisition board card through a connection harness, and is connected to a computer through the data acquisition board card, and the computer is used for displaying and recording the detection data. By adopting the lithium battery module open-circuit voltage detection device, the thimble assembly 4 is arranged in the thimble mounting groove 3-2 of the lifting plate 3, and the positions of a plurality of groups of thimbles on the lifting plate 3 can be conveniently adjusted, so that the total voltage of the lithium battery module, the voltage of a certain battery cell and the total voltage of a plurality of battery cells which are connected can be flexibly measured, the flexible detection of the open-circuit voltage of the waste battery module is realized, and data support is provided for the disassembly and reuse of the waste battery module.

Referring to fig. 1, 3 and 4, in the present embodiment, the lifting control mechanism 5 adopts a manual control manner, and includes an operation rod 5-1, a connection rod 5-2, a guide sleeve 5-3 and a lifting pressure rod 5-4, one end of the operation rod 5-1 is hinged to the side vertical plate 2, the middle of the operation rod 5-1 is hinged to one end of the connection rod 5-2, the other end of the connection rod 5-2 is hinged to one end of the lifting pressure rod 5-4, the other end of the lifting pressure rod 5-4 passes through the guide sleeve 5-3 and is fixedly connected to the lifting plate 3, and the guide sleeve 5-3 is fixed to the side vertical plate 2 through a bracket. When the lifting device is operated, the operating rod 5-1 is held and pressed downwards, the connecting rod 5-2 can drive the lifting pressure rod 5-4 to move downwards under the guiding action of the guide sleeve 5-3, so that the lifting plate 3 is driven to move downwards to realize voltage detection, and the lifting motion control of the lifting plate 3 is realized by the lever principle of the operating rod 5-1, so that the lifting device is simple and compact in structure and easy and convenient to operate. The guide mechanism comprises two slide rails 2-1 vertically arranged on the side vertical plate 2 and two slide blocks 3-1 arranged on the lifting plate 3, and the slide blocks 3-1 are in sliding fit with the corresponding slide rails 2-1, so that the motion stability of the lifting plate 3 is improved. Preferably, the sliding rail 2-1 is a polished rod, the sliding block 3-1 is a sliding sleeve, and the polished rod is further sleeved with a return spring positioned at the bottom of the lifting plate 3, so that the lifting plate 3 can be conveniently reset upwards after measurement, and the detection operation is more convenient.

As shown in fig. 3 and 4, in the lithium battery module open-circuit voltage detection device of the present embodiment, during operation, the lithium battery module 6 to be detected is placed on the base 1, and abuts against the limit baffle 1-1 to realize the positioning of the lithium battery module 6 to be detected; then, adjusting and fixing the positions of the thimble assemblies 4 on the lifting plate 3 according to the voltage measurement requirement, for example, moving the left thimble assembly 4 and the right thimble assembly 4 to the leftmost position and the rightmost position, wherein the thimble assembly 4 on one side is connected with the anode of the lithium battery module 6 to be measured, the thimble assembly 4 on the other side is connected with the cathode of the lithium battery module 6 to be measured, and the voltage measured by the two groups of thimble assemblies 4 is the total voltage of the lithium battery module 6 to be measured; similarly, the voltage of a certain battery cell or the total voltage of a plurality of battery cells connected together can be measured by adjusting the positions of other thimble assemblies 4; after the position of the thimble assembly 4 is adjusted, the operating rod 5-1 is pressed down, the lifting plate 3 is driven to descend through the lifting pressure rod 5-4, the corresponding spring thimble 4-2 is enabled to be in stable contact with the test point of the lithium battery module 6 to be tested, the voltage value of the corresponding position is collected through the data collecting board card, and the detection of the open-circuit voltage of the lithium battery module is achieved.

The utility model discloses a lithium battery module open circuit voltage detection device, design thimble assembly as modular structure to install thimble assembly in the thimble mounting groove of lifter plate, can conveniently adjust the position of multiunit thimble on the lifter plate, thereby can measure the total voltage of lithium battery module, the voltage of certain electric core and the total voltage that many electric cores are connected together in a flexible way, realize the nimble detection of old and useless battery module open circuit voltage, disassemble and recycle for old and useless battery module and provide data support; moreover, the whole detection device is simple in structure and flexible and convenient to operate, and the spring thimble ensures the detection to be rapid and stable.

The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without creatively designing the similar structural modes and embodiments to the technical solutions, they should belong to the protection scope of the present invention.

Claims (5)

1. A lithium battery module open-circuit voltage detection device comprises a base (1), a side vertical plate (2), a lifting plate (3), a thimble assembly (4) and a lifting control mechanism (5), wherein a limit baffle (1-1) matched with a lithium battery module (6) to be detected in a positioning mode is arranged on the base (1), the side vertical plate (2) is vertically arranged on one side of the base (1), the lifting plate (3) is arranged on the side vertical plate (2) through a guide mechanism and can vertically move up and down on the side vertical plate (2), the thimble assembly (4) is arranged on the lifting plate (3), and the lifting control mechanism (5) is arranged at the top of the side vertical plate (2) and connected with the lifting plate (3) and used for controlling the lifting plate (3) to move up and down; the method is characterized in that: the thimble structure is characterized in that at least two thimble mounting grooves (3-2) are arranged on the lifting plate (3) in parallel at intervals along the length direction, a plurality of groups of thimble assemblies (4) are arranged in each thimble mounting groove (3-2), each thimble assembly (4) comprises a thimble mounting block (4-1), a spring thimble (4-2) and a mounting bolt (4-3), two ends of each thimble mounting block (4-1) are respectively provided with a group of spring thimbles (4-2), a bolt hole is arranged in the middle of each thimble mounting block (4-1), each thimble mounting block (4-1) is arranged at the bottom of the corresponding thimble mounting groove (3-2) of the lifting plate (3), and each mounting bolt (4-3) penetrates through the corresponding thimble mounting groove (3-2) to be connected with the corresponding bolt hole of the corresponding thimble mounting block (4-1), the lifting plate (3) is clamped between the thimble mounting block (4-1) and the cap head of the mounting bolt (4-3).

2. The lithium battery module open-circuit voltage detection device of claim 1, characterized in that: the bottom of the thimble mounting groove (3-2) is also provided with a guide groove matched with the width of the thimble mounting block (4-1), and the thimble mounting block (4-1) is positioned and mounted in the guide groove.

3. the lithium battery module open-circuit voltage detection device according to claim 1 or 2, characterized in that: the lifting control mechanism (5) comprises an operating rod (5-1), a connecting rod (5-2), a guide sleeve (5-3) and a lifting pressure rod (5-4), one end of the operating rod (5-1) is hinged to the side vertical plate (2), the middle of the operating rod (5-1) is hinged to one end of the connecting rod (5-2), the other end of the connecting rod (5-2) is hinged to one end of the lifting pressure rod (5-4), the other end of the lifting pressure rod (5-4) penetrates through the guide sleeve (5-3) to be fixedly connected with the lifting plate (3), and the guide sleeve (5-3) is fixed to the side vertical plate (2) through a support.

4. The lithium battery module open-circuit voltage detection device of claim 3, characterized in that: the guide mechanism comprises two slide rails (2-1) vertically arranged on the side vertical plates (2) and two slide blocks (3-1) arranged on the lifting plate (3), and the slide blocks (3-1) are in sliding fit with the corresponding slide rails (2-1).

5. the lithium battery module open-circuit voltage detection device of claim 4, characterized in that: the sliding rail (2-1) is a polished rod, the sliding block (3-1) is a sliding sleeve, and the polished rod is further sleeved with a return spring positioned at the bottom of the lifting plate (3).