CN220270654U - Lithium battery expansion pressure detection device - Google Patents

Abstract

The utility model discloses a lithium battery expansion pressure detection device, which relates to the technical field of lithium battery detection, and comprises a fixed frame and a workbench, wherein a lifting mechanism is arranged on the fixed frame, a pressure mechanism is arranged on the lifting mechanism and is used for detecting the pressure of a lithium battery during expansion, a driving piece is started and drives a moving block to descend on a screw rod, then two connecting columns descend, a pressure sensor is driven to descend at the same time and is attached to a pressing plate, the pressing plate is pushed to descend, the pressing plate is pressed to the position of a single lithium battery, a pressure index is sensed by the pressure sensor and is input into a signal receiving box through a telescopic wire, the pressure index is displayed through a pressure gauge, the single lithium battery starts to expand, and a control panel accurately records the pressure, so that the pressure of the single lithium battery can be better detected.

Description

Lithium battery expansion pressure detection device

Technical Field

The utility model relates to the technical field of lithium battery detection, in particular to a lithium battery expansion pressure detection device.

Background

Lithium batteries are a type of battery using lithium metal or lithium alloy as a positive/negative electrode material and a nonaqueous electrolyte solution, and as early as 1912, lithium metal batteries were proposed and researched by gilbert n.lewis, and along with the continuous development of technology, lithium batteries have also been researched and perfected.

During production, the lithium battery is required to carry out expansion pressure detection, and whether the lithium battery is qualified or not is detected; through retrieval, the prior patent (publication number: CN 207832363U) discloses a lithium battery expansion detection device, which comprises a battery shell and at least one group of battery cells arranged in a row in the battery shell, wherein a pressure sensor for detecting the expansion pressure value of the battery cells is arranged between the group of battery cells, and a signal output end of the pressure sensor is connected with a controller for receiving the expansion pressure value of the pressure sensor and judging whether the expansion pressure value exceeds the limit or not through a signal transmission line. The pressure sensing part of the pressure sensor is contacted with the middle part of the opposite surface of the single battery, so that the sensitivity and accuracy of the pressure sensor in use are ensured, whether the expansion of the lithium battery exceeds the limit or not can be rapidly judged, the position of the battery single body or the battery module with the expansion exceeding the limit can be rapidly and accurately positioned, the rapid replacement of workers is facilitated, the potential safety hazard brought by the battery single body or the battery module with the expansion exceeding the limit is eliminated, and the production quality and the safety and reliability of the lithium battery in use are improved. The inventors found that the following problems exist in the prior art in the process of implementing the present utility model:

the existing lithium battery expansion pressure detection device is characterized in that when the existing lithium battery expansion pressure detection device is used in a lithium battery production factory, a worker presses or places a group of lithium batteries on a machine for expansion pressure detection, because the group of lithium batteries are bundled together and placed on the machine, when the pressure detection is carried out, the quality in the group of lithium batteries is unequal, and because the stress area is larger, each single lithium battery is balanced by the pressure of the group of lithium batteries;

accordingly, the present application proposes a lithium battery expansion pressure detection device in view of the above-mentioned problems.

Disclosure of Invention

In order to solve the technical problems in the background technology, the utility model provides a lithium battery expansion pressure detection device.

The utility model provides a lithium battery expansion pressure detection device, which comprises a fixing frame and a workbench, wherein a lifting mechanism is arranged on the fixing frame, a pressure mechanism is arranged on the lifting mechanism, and the pressure mechanism is used for detecting the pressure of a lithium battery during expansion.

Preferably, the lifting mechanism comprises a driving piece, the output end of the driving piece is connected with a screw rod through a coupling, the screw rod is connected with a moving block, the screw rod rotates to drive the moving block to lift, the periphery of the screw rod is in threaded connection with the penetrating part of the moving block, and a connecting column is arranged on the moving block.

Preferably, the number of the connecting columns is two, and the two connecting columns are symmetrically distributed.

Preferably, the driving member is a servo motor.

Preferably, the pressure mechanism comprises a pressure sensor, the pressure sensor is arranged on the lifting mechanism, one side of the pressure sensor is electrically connected with a signal receiving box, a pressure gauge is arranged on the signal receiving box, one side of the signal receiving box is connected with a data transmission line, and one end of the data transmission line is connected with a control panel.

Preferably, the pressure sensor is mounted on a connection post.

Preferably, the shape of the pressure sensor is set to be circular.

Preferably, the data transmission line is provided with a movable shaft, the data transmission line is wound on the movable shaft, one side of the movable shaft is provided with a fixed column, the movable shaft rotates on the fixed column, and the movable shaft is used for winding the data transmission line.

Preferably, the below fixedly connected with fixed plate of workstation, the below fixedly connected with backup pad of fixed plate, the backup pad below can be dismantled and be connected with the base, and the block is connected between backup pad and the base. The fixed plate, the support plate and the base are used for stably supporting the fixing frame and the workbench.

Preferably, a return spring is arranged on the workbench, and a pressing plate is arranged on the return spring.

Preferably, the number of the reset springs is four, and the four reset springs are distributed on the periphery of the workbench at equal intervals, so that the reset can be better performed in later use.

Preferably, a stabilizing mechanism is installed on the workbench, and the stabilizing mechanism is used for fixing the lithium battery.

Preferably, the stabilizing mechanism comprises a sliding rail and a pushing piece, two sliding blocks are connected in the sliding rail in a sliding manner, limiting plates are arranged on the sliding blocks, and the pushing piece is used for pushing the two limiting plates to be close to each other or far away from each other.

Preferably, the pushing piece comprises a reinforcing column and an electric push rod, the reinforcing column is arranged on the sliding block, and one end of an output shaft of the electric push rod is fixedly connected with the reinforcing column.

Preferably, two sides of the limiting plates, which are close to each other, are provided with rubber pads.

Preferably, the limiting plate is in adhesive connection with the rubber pad.

1. According to the lithium battery expansion pressure detection device, the driving piece, the connecting column, the screw rod, the pressure sensor, the pressure gauge, the signal receiving box, the fixed column, the movable shaft, the data transmission line, the control panel and the moving block are arranged, the lithium battery expansion pressure detection device is placed in a lithium battery production factory, then a single lithium battery is placed on the workbench, a user starts the driving piece and drives the internal coupling to rotate, the output end of the coupling drives the screw rod to rotate, the moving block is driven to descend on the screw rod, then the two connecting columns are lowered, the pressure sensor is driven to descend at the same time, the pressure sensor is attached to the pressing plate, then the pressing plate is pushed to descend, the telescopic line is driven to stretch, the pressing plate is pressed to the position of the single lithium battery, the pressure sensor senses the pressure index, the single lithium battery is input into the signal receiving box through the telescopic line, the pressure gauge is displayed, the signal receiving box converts the signal into electricity, the voltage is input into the control panel through the data transmission line to accurately display, the single lithium battery expansion can be accurately controlled along with the fact that the pressing of the single lithium battery is not pressed, and the single lithium battery expansion can be accurately detected.

2. According to the lithium battery expansion pressure detection device, through the arrangement of the relation among the limiting plate, the rubber pad, the sliding rail, the sliding block, the reinforcing column and the electric push rod, the lithium battery expansion pressure detection device is placed in a lithium battery production factory, then the lithium battery is placed on the workbench, then the electric push rod is started by a user, the telescopic column in the electric push rod stretches, then the reinforcing column is pushed to move, then the sliding block is driven to move in the sliding rail, meanwhile, the limiting plate is driven to move, the rubber pad is attached to the single lithium battery for clamping, and then the electric push rod is closed by the user, so that the single lithium battery can be stabilized better.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model.

FIG. 2 is a schematic diagram of the structure of the pressure mechanism of the present utility model.

FIG. 3 is a schematic view of the structure of the stabilizing mechanism of the present utility model.

Fig. 4 is a schematic view of the rubber pad structure of the utility model.

The reference numerals are: 1. a pressure mechanism; 101. a driving member; 102. a connecting column; 103. a screw rod; 104. a pressure sensor; 105. a pressure gauge; 106. a signal receiving box; 107. fixing the column; 108. a movable shaft; 109. a data transmission line; 110. a control panel; 111. a moving block; 2. a fixing frame; 3. a work table; 4. a fixing plate; 5. a support plate; 6. a base; 7. a stabilizing mechanism; 701. a limiting plate; 702. a rubber pad; 703. a slide rail; 704. a slide block; 705. reinforcing the column; 706. an electric push rod; 8. a return spring; 9. and (5) pressing plates.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

The lithium battery expansion pressure detection device comprises a fixing frame 2 and a workbench 3, wherein a lifting mechanism is arranged on the fixing frame 2, a pressure mechanism 1 is arranged on the lifting mechanism, and the pressure mechanism 1 is used for detecting the pressure of the lithium battery during expansion.

Further, the lifting mechanism comprises a driving piece 101, the output end of the driving piece 101 is coaxially connected with a screw rod 103 through a coupler, a moving block 111 is connected to the screw rod 103, the screw rod 103 rotates to drive the moving block 111 to lift, the penetrating position of the periphery of the screw rod 103 and the moving block 111 is in threaded connection, and a connecting column 102 is arranged on the moving block 111.

Specifically, the number of the connecting posts 102 is two, and the two connecting posts 102 are symmetrically distributed.

Specifically, the driving member 101 is a servo motor.

The lifting mechanism is other existing lifting equipment capable of realizing lifting.

Further, the pressure mechanism 1 comprises a pressure sensor 104, the pressure sensor 104 is installed on the lifting mechanism, one side of the pressure sensor 104 is electrically connected with a signal receiving box 106, a pressure gauge 105 is installed on the signal receiving box 106, one side of the signal receiving box 106 is connected with a data transmission line 109, and one end of the data transmission line 109 is connected with a control panel 110.

Specifically, the pressure sensor 104 is mounted on the connection post 102.

Specifically, the shape of the pressure sensor 104 is set to be circular.

Specifically, a movable shaft 108 is disposed on the data transmission line 109, the data transmission line 109 is wound around the movable shaft 108, a fixed column 107 is disposed on one side of the movable shaft 108, the movable shaft 108 rotates on the fixed column 107, and the movable shaft 108 is used for winding the data transmission line 109.

Further, the fixed plate 4 is fixedly connected with below the workbench 3, the supporting plate 5 is fixedly connected with below the fixed plate 4, the base 6 is detachably connected with below the supporting plate 5, and the supporting plate 5 is connected with the base 6 in a clamping mode. The fixing plate 4, the supporting plate 5 and the base 6 are used for stably supporting the fixing frame 2 and the workbench 3.

Further, a return spring 8 is mounted on the table 3, and a pressing plate 9 is mounted on the return spring 8.

Specifically, the number of the reset springs 8 is four, and the four reset springs 8 are equidistantly distributed on the periphery of the workbench 3, so that the reset can be better performed in later use.

Further, a stabilizing mechanism 7 is mounted on the workbench 3, and the stabilizing mechanism 7 is used for fixing the lithium battery.

Specifically, the stabilizing mechanism 7 includes a sliding rail 703 and a pushing member, two sliding blocks 704 are slidably connected in the sliding rail 703, and a limiting plate 701 is mounted on the sliding block 704, and the pushing member is used for pushing the two limiting plates 701 to approach each other or to separate from each other.

Further, the pushing member comprises a reinforcing column 705 and an electric push rod 706, wherein the reinforcing column 705 is installed on the sliding block 704, and one end of an output shaft of the electric push rod 706 is fixedly connected with the reinforcing column 705.

Specifically, a rubber pad 702 is disposed on one side of the two limiting plates 701, which are close to each other.

Specifically, the limiting plate 701 is connected with the rubber pad 702 by gluing.

The pushing piece is other existing pushing equipment capable of realizing pushing.

According to the proposed lithium battery expansion pressure detection device, through the relation among the driving piece 101, the connecting columns 102, the screw rods 103, the pressure sensor 104, the pressure gauge 105, the signal receiving box 106, the fixed column 107, the movable shaft 108, the data transmission line 109, the control panel 110 and the moving block 111, the lithium battery expansion pressure detection device is placed in a lithium battery production factory, then a single lithium battery is placed on the workbench 3, then the driving piece 101 is started by a user, the internal coupling is driven to rotate, the screw rods 103 are driven to rotate by the output end of the coupling, the moving block 111 is driven to descend on the screw rods 103, then the two connecting columns 102 descend, the pressure sensor 104 is driven to descend simultaneously, then the pressure sensor 104 is attached to the pressing plate 9, then the pressing plate 9 is pushed to descend slowly, the pressing plate 9 is driven to stretch the single lithium battery, the pressing plate 9 is pressed to the position of the single lithium battery, then the pressure sensor 104 senses the pressure index, the single lithium battery is input into the signal receiving box 106 through the stretching line, then the pressure gauge 105 is input, the single lithium battery is displayed through the pressure gauge 105, then the signal receiving box 106 is converted into the signal receiving box to rotate, the signal receiving box to drive the moving block 111 to descend, the moving block 111 is driven to descend on the lead to move down, the single lithium battery 110 along with the accurate pressure line, and the accurate control of the single battery expansion can be detected, and the pressure can be accurately detected, and the lithium battery can be accurately detected, and the pressure can be detected, and the pressure 110 is accurately detected, and the pressure when the voltage is input and the voltage is detected.

Through setting up limiting plate 701, rubber pad 702, slide rail 703, slider 704, consolidate relation between post 705 and the electric putter 706, place lithium cell inflation pressure detecting device in lithium cell production factory, then place the lithium cell on workstation 3, then user starts electric putter 706, then the inside telescopic column of electric putter 706 extends, then promote consolidate post 705 and remove, then drive slider 704 and remove at slide rail 703 inside, drive limiting plate 701 simultaneously and remove, and rubber pad 702 laminating is in monomer lithium cell department centre gripping, then the user closes electric putter 706, thereby can be better stabilize monomer lithium cell.

The embodiment is in the working process:

firstly, place lithium cell inflation pressure detection device in lithium cell production mill, and base 6 laminating is in ground, then place the monomer lithium cell on workstation 3, then the user starts electric putter 706, then electric putter 706 inside telescopic column is stretched, then promote reinforcement post 705 and remove, then drive slider 704 and remove in slide rail 703 inside, drive limiting plate 701 simultaneously and remove, and rubber pad 702 laminating is held in monomer lithium cell department, then the user closes electric putter 706, thereby the user starts driving piece 101, and drive internal coupling and rotate, and the shaft coupling output drives lead screw 103 and rotates, and drive movable block 111 descends on lead screw 103, then two spliced poles 102 descend, and simultaneously take pressure sensor 104 to descend, then pressure sensor 104 laminating is on clamp plate 9, then slowly descend, promote clamp plate 9 and descend, then promote reset spring 8 and retract, then drive the extension line and clamp plate 9 pressure to monomer lithium cell position, and reset spring 8 stops retracting, then carry out pressurization again, then pressure sensor 104 is followed by the signal input of accurate control signal input table 110 is carried out to the input accurate control signal input table 110 of pressure gauge 105, this is that the input table is accurate pressure gauge 105 is stretched by pressure, then receives the signal input table 106.

The control panel 110 is provided herein as FG-10, the signal receiving box 106 as XB1-B, the electric pushrod 706 as DT2000, and the pressure sensor 104 as SK114.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (9)

1. The utility model provides a lithium cell inflation pressure detection device, includes mount (2) and workstation (3), its characterized in that: the lifting mechanism is arranged on the fixing frame (2), the pressure mechanism (1) is arranged on the lifting mechanism, and the pressure mechanism (1) is used for detecting pressure;

the pressure mechanism (1) comprises a pressure sensor (104), the pressure sensor (104) is arranged on the lifting mechanism, one side of the pressure sensor (104) is electrically connected with a signal receiving box (106), a pressure gauge (105) is arranged on the signal receiving box (106), one side of the signal receiving box (106) is connected with a data transmission line (109), and one end of the data transmission line (109) is connected with a control panel (110).

2. The lithium battery expansion pressure detection device according to claim 1, wherein the lifting mechanism comprises a driving piece (101), an output end of the driving piece (101) is connected with a screw rod (103) through a coupling, a moving block (111) is connected to the screw rod (103), the screw rod (103) rotates to drive the moving block (111) to lift, and a connecting column (102) is arranged on the moving block (111).

3. The expansion pressure detection device for lithium batteries according to claim 2, wherein the number of the connecting posts (102) is two, and the two connecting posts (102) are symmetrically distributed.

4. The lithium battery expansion pressure detection device according to claim 1, wherein a movable shaft (108) is provided on the data transmission line (109), the data transmission line (109) is wound on the movable shaft (108), a fixed column (107) is provided on one side of the movable shaft (108), the movable shaft (108) rotates on the fixed column (107), and the movable shaft (108) is used for winding the data transmission line (109).

5. The lithium battery expansion pressure detection device according to claim 1, wherein a fixing plate (4) is fixedly connected to the lower side of the workbench (3), a supporting plate (5) is fixedly connected to the lower side of the fixing plate (4), and a base (6) is detachably connected to the lower side of the supporting plate (5).

6. The lithium battery expansion pressure detection device according to claim 1, wherein a return spring (8) is mounted on the workbench (3), and a pressing plate (9) is mounted on the return spring (8).

7. The lithium battery expansion pressure detection device according to claim 1, wherein a stabilizing mechanism (7) is mounted on the workbench (3), and the stabilizing mechanism (7) is used for fixing a lithium battery.

8. The lithium battery expansion pressure detection device according to claim 7, wherein the stabilizing mechanism (7) comprises a sliding rail (703) and a pushing member, two sliding blocks (704) are arranged in the sliding rail (703), limiting plates (701) are mounted on the sliding blocks (704), and the pushing member is used for pushing the two limiting plates (701) to be close to or far from each other.

9. The lithium battery expansion pressure detection device according to claim 8, wherein the pushing member comprises a reinforcing column (705) and an electric push rod (706), the reinforcing column (705) is mounted on the slider (704), and one end of an output shaft of the electric push rod (706) is connected with the reinforcing column (705).