Battery cell height detection instrument

Abstract

The utility model discloses a battery cell height detection instrument, which relates to the field of battery cell detection and comprises a support, a fixing plate and a conveying belt, the fixing plate is fixed on the support, the conveying belt is arranged above the fixing plate, a battery cell body is placed on the conveying belt, an air cylinder is fixed on the support, a mounting plate is fixed at the output end of the air cylinder, and the mounting plate is connected with the air cylinder. A laser range finder is fixed on the mounting plate, a movable plate is arranged below the laser range finder, and a contact sensor is vertically fixed on the lower end surface of the movable plate. According to the cell height detection instrument, the semi-automatic detection mechanism is adopted, the cell height detection effect can be rapidly achieved, compared with traditional manual detection, the detection efficiency and the detection precision are higher, deviation data of the cell height can be accurately determined in the detection process, and therefore data support can be provided for regulation and control of subsequent cell production; and the production quality of the battery cell is effectively ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric core detection, specifically to a kind of electric core height detection instrument. BACKGROUND

[0002] With the wide application of lithium ion battery, the safety performance of aluminum shell lithium ion battery is also paid attention by consumers, and the common safety hazard of battery in use is thermal runaway, and one of the main reasons causing thermal runaway is high battery contact impedance, when the height of electric core is inconsistent, virtual welding phenomenon appears when using laser welding, which leads to high external contact impedance of electric core, eventually leads to high temperature rise, and electric core failure, the current measurement mode of aluminum shell electric core height has over-pass rule, this fixture can only measure upper and lower limits, and cannot accurately obtain data, personnel operation is troublesome, therefore, in view of the above problems, the present application designs a kind of electric core height detection instrument to better meet the actual use demand. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of electric core height detection instrument to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of electric core height detection instrument, including support, fixed plate and conveying belt, the support is fixed with fixed plate, the fixed plate top is provided with conveying belt, the electric core body is placed on the conveying belt, the support is fixed with pneumatic cylinder, the output end of the pneumatic cylinder is fixed with mounting plate, the mounting plate is fixed with laser range finder, the laser range finder lower is provided with movable plate, the movable plate lower end surface is vertically fixed with contact sensor.

[0005] Preferably, the support side is fixed with a control panel, and the control panel can realize the whole device control and data display.

[0006] Preferably, the fixed plate is fixed with a limiting plate at equal intervals, the limiting plate is installed with a conveying belt, and the conveying belt and the contact sensor are one-to-one corresponding distribution, the limiting plate and the electric core body contact sliding, the limiting plate can realize the limiting direction of electric core body, avoid the electric core body deviation.

[0007] Preferably, the conveying belt is intermittently moved by motor, and the conveying belt moves distance each time is equal to the diameter of electric core body, and the conveying belt can realize the equal-interval intermittent conveying effect of electric core body, so as to provide basic guarantee for the height detection of electric core body.

[0008] Preferably, the mounting plate front end face is also fixed with warning light at equal intervals, and the warning light and the contact sensor are one-to-one corresponding distribution, the warning light can realize information feedback, and the position of unqualified electric core body is convenient for staff to determine.

[0009] Preferably, the movable plate and the laser range finder are one-to-one corresponding distribution, and the movable plate and the conveying belt are parallel distribution, through the laser range finder, the displacement of the movable plate can be detected, so as to determine whether the height of the battery body is qualified.

[0010] Preferably, the movable plate is also fixed with a vertical rod left and right symmetrically, and the vertical rod and the mounting plate are slidingly connected, when the movable plate moves relative to the battery body, the sliding guiding action between the vertical rod and the mounting plate can ensure the stability of the movable plate.

[0011] Preferably, one end of the spring is fixed with the movable plate, and the other end of the spring is fixed on the lower end surface of the mounting plate, through the elastic action of the spring, the automatic reset of the movable plate can be provided with basic force.

[0012] Compared with the prior art, the beneficial effects of the utility model are that: the battery height detection instrument adopts a semi-automatic detection mechanism, can quickly realize the detection of the battery height, compared with the traditional manual detection, the detection efficiency and the detection precision are higher, and in the detection process, the deviation data of the battery height can be accurately determined, thereby data support can be provided for subsequent battery production control, thereby effectively guaranteeing the production quality of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is the overall front view of the utility model device three-dimensional structure schematic diagram;

[0014] Fig. 2 It is the mounting plate and the movable plate of the utility model three-dimensional structure schematic diagram of the overall front view;

[0015] Fig. 3 It is the mounting plate and the movable plate of the utility model three-dimensional structure schematic diagram of the partial enlarged view of the bottom view.

[0016] In the drawing: 1, support; 2, control panel; 3, fixed plate; 301, limit plate; 4, conveying belt; 5, battery body; 6, air cylinder; 7, mounting plate; 701, warning light; 702, laser range finder; 8, movable plate; 801, contact sensor; 802, vertical rod; 803, spring. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, apparently, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0018] Please refer to Figs. 1-3 The utility model provides a technical scheme: a kind of electric core height detection instrument, including support 1, fixed plate 3 and conveying belt 4, fixed plate 3 is fixed on support 1, fixed plate 3 top is provided with conveying belt 4, electric core body 5 is placed on conveying belt 4, cylinder 6 is fixed on support 1, the output end of cylinder 6 is fixed with mounting plate 7, laser range finder 702 is fixed on mounting plate 7, movable plate 8 is provided below laser range finder 702, and contact sensor 801 is vertically fixed on the lower end surface of movable plate 8.

[0019] Control panel 2 is fixed on the side of support 1;Warning light 701 is also fixed at equal intervals on the front end surface of mounting plate 7, and warning light 701 and contact sensor 801 are one-to-one corresponding distribution;Movable plate 8 and laser range finder 702 are one-to-one corresponding distribution, and movable plate 8 and conveying belt 4 are parallel distribution;Vertical rod 802 is also fixed on movable plate 8 left and right symmetrically, and vertical rod 802 and mounting plate 7 are slidingly connected;

[0020] When using the electric core height detection instrument, as shown in Figs. 1-3 First, set the height deviation range of electric core body 5 according to production quality requirement (the standard deviation range of traditional electric core height is usually ±0.1mm, and data can be adjusted according to actual production requirement, and the detection of the application is based on the deviation range of ±0.1), after adjustment, control the moving distance of cylinder 6, to ensure that when detecting, when the height of electric core body 5 is-0.1, contact sensor 801 can contact electric core body 5 at this time, that is, when cylinder 6 moves, when contact sensor 801 does not contact electric core body 5, the electric core body 5 is unqualified product, when contact sensor 801 contacts electric core body 5 and moves under force, the moving distance of contact sensor 801 and movable plate 8 can be detected by laser range finder 702, when the moving distance is greater than 0.2 at this time, then electric core body 5 is unqualified product;

[0021] Limiting plate 301 is fixed on fixed plate 3 at equal intervals, and conveying belt 4 is installed on limiting plate 301, and conveying belt 4 and contact sensor 801 are one-to-one corresponding distribution, and limiting plate 301 contacts and slides with electric core body 5;Conveying belt 4 realizes intermittent motion by motor driving, and the motion distance of conveying belt 4 each time is equal to the diameter of electric core body 5;Movable plate 8 and one end of spring 803 are fixed with each other, and the other end of spring 803 is fixed on the lower end surface of mounting plate 7.

[0022] After adjustment, when detecting, as shown in Figs. 1-3As shown, the intermittent conveying of the battery body 5 can be realized by the conveying belt 4, and the limiting and guiding effect of the limiting plate 301 can ensure the stability of the movement of the battery body 5; when the battery body 5 moves to the position directly below the contact sensor 801, at this time, the conveying belt 4 stops running, the cylinder 6 extends to drive the mounting plate 7, the movable plate 8 and the contact sensor 801 to move downward until the preset position when the cylinder 6 extends, at this time, when the contact sensor 801 is not in contact with the battery body 5, the warning light 701 at the corresponding position is turned on, indicating that the battery body 5 at this position is unqualified product, when the contact sensor 801 is in contact with the battery body 5 and moves, cooperating with the laser range finder 702, the moving distance of the contact sensor 801 and the movable plate 8 can be detected, when the moving distance is 0-0.2mm at this time, it indicates that the battery body 5 at this position is qualified product, when the moving distance is greater than 0.2mm at this time, the battery body 5 is unqualified product, and the warning light 701 at the corresponding position is turned on, so that the automatic detection of the battery body 5 can be realized, which is the working principle of the battery height detection instrument.

[0023] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A kind of electric core height detection instrument, including support (1), fixed plate (3) and conveying belt (4), the fixed plate (3) is fixed on support (1), conveying belt (4) is disposed above the fixed plate (3), electric core body (5) is placed on the conveying belt (4), it is characterized in that: The support (1) is fixed with a cylinder (6), the output end of the cylinder (6) is fixed with a mounting plate (7), the mounting plate (7) is fixed with a laser range finder (702), the laser range finder (702) is provided with a movable plate (8) below, the movable plate (8) is vertically fixed with a touch sensor (801) on the lower end surface.

2. The cell height detection instrument of claim 1, wherein: The side edge of the support (1) is fixed with a control panel (2).

3. The cell height detection instrument of claim 1, wherein: The fixed plate (3) is fixed with a limiting plate (301) at equal intervals, the limiting plate (301) is installed with a conveying belt (4), and the conveying belt (4) and the touch sensor (801) are one-to-one corresponding distribution, the limiting plate (301) and the battery body (5) are in contact with sliding.

4. The cell height detection instrument of claim 3, wherein: The conveying belt (4) is intermittently moved by the motor, and the movement distance of the conveying belt (4) is equal to the diameter of the battery body (5) each time.

5. The cell height detection instrument of claim 1, wherein: The front end surface of the mounting plate (7) is also fixed with warning lights (701) at equal intervals, and the warning lights (701) and the touch sensor (801) are one-to-one corresponding distribution.

6. The cell height detection instrument of claim 1, wherein: The movable plate (8) and the laser range finder (702) are one-to-one corresponding distribution, and the movable plate (8) and the conveying belt (4) are parallel distribution.

7. The cell height detection instrument of claim 1, wherein: The movable plate (8) is also fixed with vertical rods (802) on the left and right, and the vertical rods (802) and the mounting plate (7) are slidingly connected.

8. The cell height detection instrument of claim 1, wherein: The movable plate (8) and one end of the spring (803) are fixed with each other, and the other end of the spring (803) is fixed on the lower end surface of the mounting plate (7).

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