A lithium battery temperature measurement device

Abstract

The present invention discloses a temperature measuring device for a lithium battery, which comprises a base. A detection module rotatably connected to the base is arranged on the base, and a top cover detachably connected is arranged on the detection module. The detection module is composed of a plurality of detection units stacked. Each detection unit includes a box body and a plurality of lithium batteries. The lithium batteries are located in the box body and are arranged in a matrix. There is a conduction spacing between adjacent lithium batteries, and the positive and negative directions of each lithium battery are the same. Jacks are arranged on the side plate of the box body, and the jacks are opposite to the conduction spacing. The top cover is provided with a conduction element that can be inserted into the jacks to connect the lithium batteries in series or in parallel. This temperature measuring device can change the access mode of the lithium batteries through the conduction element, and each layer can form an obvious contrast to achieve the actual measurement of the heat generated between different groups, different series and parallel connections quickly and truly, rather than simulation, which changes the cumbersome process of re-wiring every time when changing different access modes in the traditional way.

Description

Technical Field

[0001] The present invention belongs to the technical field of lithium battery processing, and particularly relates to a lithium battery temperature measuring device. Background Art

[0002] With the booming development of the lithium battery industry, the heat generation problem of lithium batteries has always been an issue that has to be considered in experiments and actual production. Currently, there is no dedicated device for quick wiring and arrangement in actual detection. Every time the series, parallel connection is changed or the difference is large, re-wiring is required, and the wiring process is cumbersome, error-prone, wastes a lot of time, and affects the progress. Summary of the Invention

[0003] The purpose of the present invention is to provide a lithium battery temperature measuring device. This temperature measuring device can change the access mode of the lithium battery through a conducting element, and each layer can form an obvious contrast to achieve the actual situation of measuring the heat generated between different groups, different series and parallel connections quickly and truly, rather than simulation, which changes the cumbersome process of re-wiring every time different access modes are changed in the traditional way.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a lithium battery temperature measuring device, including a base, a detection module rotatably connected to the base is arranged on the base, a detachable top cover is arranged on the detection module, the detection module is stacked and composed of a plurality of detection units, each detection unit includes a box body and a plurality of lithium batteries, the lithium batteries are located in the box body and are arranged in a matrix, there is a conducting spacing between adjacent lithium batteries, the positive and negative directions of each lithium battery are the same, jacks are arranged on the side plate of the box body, the jacks are opposite to the conducting spacing, and a conducting element that can be inserted into the jack to connect the lithium batteries in series or parallel is arranged on the top cover.

[0005] Preferably, the base is provided with one detection unit, and the structure of the detection unit is the same as that of the detection unit of the detection module.

[0006] Preferably, the form of the rotational connection between the detection module and the base is: a rotating shaft is vertically upward arranged at the center of the base, and the bottom plate of the box body in each detection unit can rotate along the rotating shaft.

[0007] Preferably, a cover groove is arranged on the top of the top cover, a plurality of placement grooves are arranged at the bottom of the cover groove, the placement grooves are equidistantly distributed, and a plurality of conducting elements are stacked in the placement grooves.

[0008] Preferably, the conducting element is in the shape of a waist-shaped sheet with holes at both ends, and columns adapted to the holes are arranged at both ends of the placement groove.

[0009] Preferably, moving limit mechanisms are provided on both longitudinal sides of the lithium battery. The moving limit mechanism includes a fixed plate, a balance seat, a reset seat, and a reset spring. The fixed plate is fixed to the bottom plate of the box body, the balance seat is fixed to the middle of the lithium battery, the reset seats are located on both sides of the balance seat, one end of the reset seat is fixed to the fixed plate, and the other end is slidably connected to the lithium battery. One end of the reset spring is fixed to the reset seat, and the other end is fixed to the balance seat.

[0010] Preferably, a plurality of vertical rotating grooves are provided on the outer wall of the box body. The rotating grooves are arranged equidistantly and parallel to each other, and the rotating grooves of the upper and lower box bodies are communicated.

[0011] Preferably, the base, the rotating shaft, the box body, the top cover, the fixed plate, the balance seat, and the reset seat are made of flame-retardant materials.

[0012] Advantages of the present invention:

[0013] 1. This temperature measuring device can change the access mode of the lithium battery through the conducting element, and each layer can form an obvious comparison to achieve the actual situation of measuring the heat generated between different groups, different series and parallel connections quickly and truly, rather than simulation, which changes the cumbersome process of re-wiring every time different access modes are changed in the traditional way.

[0014] 2. When multiple detection units need to work together, the polarity of the lithium battery in the box body of a certain detection unit can be reversed by rotating the box body, and then the conducting element can be connected through a pin or a wire to complete the purpose of multi-layer collaborative work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the temperature measuring device of the present invention.

[0016] Figure 2 It is a top view of the detection unit of the present invention.

[0017] Figure 3 It is Figure 2 a partial enlarged view of A in

[0018] Figure 4 It is a side view of the temperature measuring device of the present invention.

[0019] Figure 5 It is a top view of the temperature measuring device of the present invention.

[0020] Figure 6 It is a schematic structural diagram of the conducting element of the present invention.

[0021] Identifications in the figure: base 1, rotating shaft 11; detection module 2, box body 21, lithium battery 22, conduction spacing 23, rotating groove 24, box body side plate 211, jack 212, box body bottom plate 213, card slot 221, card block 222; top cover 3, cover groove 31, placement groove 32, upright column 33; conduction element 4, hole 41; fixing plate 51, balance seat 52, reset seat 53, reset spring 54. Detailed implementation manners

[0022] The following further explains the structures involved in the present invention or the technical terms used therein. These explanations are only given by way of example to illustrate how the present invention is implemented and shall not constitute any limitation to the present invention.

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific implementation manners. In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left" and "right" etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the present invention, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a direct connection or an indirect connection through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] As Figures 1-6 shown, a lithium battery temperature measurement device includes a base 1, a detection module 2 rotatably connected to the base 1 on the base 1, a top cover 3 detachably connected to the detection module 2, the detection module 2 is composed of a plurality of detection units stacked, each detection unit includes a box body 21 and a plurality of lithium batteries 22, the lithium batteries 22 are located inside the box body 21 and are arranged in a matrix, there is a conduction spacing 23 between adjacent lithium batteries 22, the positive and negative directions of each lithium battery 22 are the same, a jack 212 is provided on the box body side plate 211, and the jack 212 is opposite to the conduction spacing 23, and a conduction element 4 that can be inserted into the jack 212 to connect the lithium batteries 22 in series or in parallel is provided on the top cover 3.

[0026] Among them, the lithium battery is a standard part, and the battery here can be a battery cell, a battery pack, or a battery module, and can be in the form of a square shell, a cylinder, or a soft package according to its shape. This embodiment is in the form of a soft package battery.

[0027] Among them, the positive and negative electrode directions of each lithium battery 22 being the same means that the positive electrodes of all lithium batteries 22 face the same direction and the negative electrodes face the same direction.

[0028] As a specific implementation manner, the base 1 is provided with a detection unit, and the structure of the detection unit is the same as that of the detection unit of the detection module. That is, the top of the base 1 is in the shape of a box, and the lithium batteries are located inside the box, arranged in a matrix. There is a conduction spacing between adjacent lithium batteries, the positive and negative electrode directions of each lithium battery are the same, and jacks are provided on the side plate of the box, and the jacks are opposite to the conduction spacing.

[0029] As a specific implementation manner, the form in which the detection module 2 is rotatably connected to the base 1 is: a rotating shaft 11 is vertically upward provided at the center of the base 1, and the bottom plate 213 of the box in each detection unit can rotate along the rotating shaft 11.

[0030] The number of detection units is not limited, and can be 3, 4, 5, or more. The shape of the box 21 is not limited, and a rectangle is preferred because most lithium batteries 22 are rectangular, which is convenient for placement and can maximize the use of space. The number of lithium batteries 22 in each detection unit is not limited, and the arrangement method is not limited. In this implementation, there are a total of 8 lithium batteries 22, arranged in two rows and four columns, see Figure 2 . The positive and negative electrodes of the lithium battery are led out through wires or conductive blocks. Figure 2 and 3 It is shown as the structure of a conductive block. The positive (negative) conductive block is a card slot 221, and the corresponding negative (positive) conductive block is a card block 222. Adjacent lithium batteries can be snap-connected, which is convenient for connecting and conducting with each other.

[0031] When in series connection, the conduction element 4 is inserted into the jack 212 and contacts or accesses the wires of the positive and negative electrodes of the lithium battery. Figure 2 As shown, the positive and negative electrodes are in the horizontal direction of the lithium battery, so the adjacent lithium batteries in the same row are conducted. When in parallel connection, by controlling the insertion depth, the positive or negative electrodes of the adjacent lithium batteries in the same column are connected. As a specific implementation manner, a cover groove 31 is provided at the top of the top cover 3, and a plurality of placement grooves 32 are provided at the bottom of the cover groove 31. The placement grooves 32 are equally spaced, and a plurality of conduction elements 4 are stacked in the placement grooves 32. A closing element similar to a lid is used to close the cover groove 31 to prevent the conduction element 4 from falling off. As a specific implementation manner, the conduction element 4 is in the shape of a waist-shaped sheet, with holes 41 opened at both ends, and columns 33 adapted to the holes 41 are provided at both ends of the placement groove 32. The holes 41 on the conduction element 4 are convenient for accessing wires, pins and other objects to form a circuit, and are also convenient for fixing in the placement groove 32. The space of the placement groove 32 can accommodate the conduction element 4, and preferably the size of the conduction element 4 is adapted to the placement groove 32.

[0032] To facilitate the series connection of multiple lithium batteries 22 in the same row, the lithium batteries 22 can be moved horizontally. In this way, the conduction element 4 is inserted into the jack 212, and the first lithium battery 22 is pushed, so that the lithium batteries are in contact with each other in sequence with opposite polarities to achieve the purpose of series connection. When a large number of batteries need to be connected in series in sequence, only moving the lithium batteries at the head and tail cannot make all the intermediate batteries conduct with opposite polarities. It is necessary to supplement and insert the conduction element 4 at the places where conduction has not occurred.

[0033] A specific implementation manner in which the lithium battery 22 can be moved horizontally is as follows: Moving limit mechanisms are provided on both longitudinal sides of the lithium battery 22. The moving limit mechanism includes a fixed plate 51, a balance seat 52, a reset seat 53, and a reset spring 54. The fixed plate 51 is fixed to the bottom plate 213 of the box body. The balance seat 52 is fixed to the middle of the lithium battery 22. The reset seats 53 are located on both sides of the balance seat 52. One end of the reset seat 53 is fixed to the fixed plate 51, and the other end is slidably connected to the lithium battery 22. One end of the reset spring 54 is fixed to the reset seat 53, and the other end is fixed to the balance seat 52. For the lithium battery 22 close to the side plate 211 of the box body, the side plate 211 of the box body serves as the fixed plate, and the reset seat 53 is directly fixed to the side plate 211 of the box body. For adjacent lithium batteries 22, the fixed plate 51 is arranged along the gap between the adjacent lithium batteries 22. Specifically, a fixed plate 51 is arranged between adjacent lithium batteries 22. The fixed plate 51 is parallel to the lithium battery 22. The reset seat 53 is vertically fixed to the fixed plate 51, and the reset spring 54 is parallel to the lithium battery 22.

[0034] With the action of the conduction element 4, the lithium battery 22 is pushed to move against the elastic force of the reset spring 54, so that the lithium batteries 22 are in contact with each other in sequence with opposite polarities to achieve the purpose of series connection. When the conduction element 4 is removed, the lithium battery 22 resets. One end of the reset seat 53 is slidably connected to the lithium battery 22, which can prevent the longitudinal displacement of the lithium battery 22.

[0035] As a specific implementation manner, a plurality of vertical rotating grooves 24 are provided on the outer wall of the box body 21. The rotating grooves 24 are arranged at equal intervals, and the rotating grooves 24 of the upper and lower box bodies 21 are communicated, which is convenient for rotating each layer of detection units.

[0036] As a specific implementation manner, the base 1, the rotating shaft 11, the box body 21, the top cover 3, the fixed plate 51, the balance seat 52, and the reset seat 53 are made of flame-retardant materials to prevent combustion due to excessive temperature.

[0037] This temperature measurement device can change the connection mode of the lithium battery 22 through a conducting element, and each layer can form an obvious contrast to achieve the actual measurement of the heat generated between different groups, different series and parallel connections quickly and truly, rather than simulation. It changes the cumbersome process of re-wiring every time when changing different connection modes in the traditional way, and improves the experimental effect. When multiple detection units need to work together, the polarity of the lithium battery 22 inside can be reversed by rotating the box body in a certain detection unit, and then the conducting element is connected through a pin or a wire to achieve the purpose of multi-layer collaborative work.

[0038] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A lithium battery temperature measurement device, characterized in that: It includes a base (1). A detection module (2) rotatably connected to the base (1) is provided on the base (1). A top cover (3) detachably connected is provided on the detection module (2). The detection module (2) is composed of a number of detection units stacked. Each detection unit includes a box body (21) and a plurality of lithium batteries (22). The lithium batteries (22) are located in the box body (21) and arranged in a matrix. There is a conduction spacing (23) between adjacent lithium batteries (22). The positive and negative directions of each lithium battery (22) are the same. Jacks (212) are provided on the side plate (211) of the box body. The jacks (212) are opposite to the conduction spacing (23). The top cover (3) is provided with conduction elements (4) that can be inserted into the jacks (212) to connect the lithium batteries (22) in series or in parallel.

2. The lithium battery temperature measurement device according to claim 1, characterized in that: One detection unit is provided on the base (1), and the structure of the detection unit is the same as that of the detection unit of the detection module (2).

3. The lithium battery temperature measurement device according to claim 2, characterized in that: The form of the rotational connection between the detection module (2) and the base (1) is: a rotating shaft (11) is vertically upward provided at the center of the base (1), and the bottom plate (213) of the box body of each detection unit can rotate along the rotating shaft (11).

4. The lithium battery temperature measurement device according to claim 1, characterized in that: A cover groove (31) is provided at the top of the top cover (3). A plurality of placement grooves (32) are provided at the bottom of the cover groove (31). The placement grooves (32) are equidistantly distributed. A plurality of conduction elements (4) are stacked in the placement grooves (32).

5. The lithium battery temperature measurement device according to claim 4, characterized in that: The conduction element (4) is in the shape of a waist-shaped sheet, with holes (41) opened at both ends. Columns (33) adapted to the holes (41) are provided at both ends of the placement groove (32).

6. The lithium battery temperature measurement device according to claim 3, characterized in that: Moving limit mechanisms are provided on both longitudinal sides of the lithium battery (22). The moving limit mechanism includes a fixing plate (51), a balance seat (52), a reset seat (53), and a reset spring (54). The fixing plate (51) is fixed to the bottom plate (213) of the box body. The balance seat (52) is fixed to the middle of the lithium battery (22). The reset seats (53) are located on both sides of the balance seat (52). One end of the reset seat (53) is fixed to the fixing plate (51), and the other end is slidably connected to the lithium battery (22). One end of the reset spring (54) is fixed to the reset seat (53), and the other end is fixed to the balance seat (52).

7. The lithium battery temperature measurement device according to claim 1, characterized in that: A plurality of vertical rotating grooves (24) are provided on the outer wall of the box body (21). The rotating grooves (24) are equidistantly arranged, and the rotating grooves (24) of the upper and lower box bodies (21) are communicated.

8. The lithium battery temperature measurement device according to claim 6, characterized in that: The base (1), the rotating shaft (11), the box body (21), the top cover (3), the fixing plate (51), the balance seat (52), and the reset seat (53) are made of flame-retardant materials.

Images