CN205246838U - Naked electric core of lithium ion battery detects machine - Google Patents

Abstract

The utility model relates to a lithium-ion battery bare cell detection machine, which comprises a base frame and a conveyor belt installed on the base frame. A bracket is installed on the base frame across the top of the conveyor belt. The electric core cylinder and the short circuit detector, the detection probe is connected under the detection cylinder, the pressure plate is connected under the piezoelectric core cylinder, and the detection probe is connected with the short circuit detector. The utility model has a reasonable structural design of the bare cell detection machine for lithium-ion batteries. The detection machine can be directly installed on the production line for streamline production to realize the automatic detection of the short circuit of the bare cell of the battery, instead of manual detection. The detection speed is fast and the efficiency is high. , the detection rate of good products can be increased to 98%, which greatly saves inspection workers, reduces labor intensity, and saves production costs. It also realizes automatic blanking of qualified products and unqualified products, greatly improving production efficiency; The contact strength of the lug detection is uniform, which greatly improves the service life of the detection probe.

Description

A lithium-ion battery bare cell testing machine

technical field

The utility model relates to the technical field of battery cell detection, in particular to a lithium-ion battery bare cell detection machine.

Background technique

At present, the short-circuit detection of bare lithium-ion battery cells mainly uses manual detection, that is, one hand-held pressure plate presses the battery cell, and the other hand-held detection probe touches the battery tab for detection. Manual detection largely depends on the testing personnel. Technical proficiency, due to the inconsistency of the pressure of the piezoelectric core of the inspectors, the detection rate of good products is not high, only about 50%, and the detection speed is slow, the efficiency is low, the product accumulation is serious, the required workers are also large, and the labor intensity of the workers is high. The cost is high, so it cannot meet the detection of a large number of battery cells, which reduces the market competitiveness of enterprises; in addition, due to the different contact strength between the detection probe and the battery tab, the service life of the detection probe is also reduced.

Contents of the invention

Aiming at the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a lithium-ion bare cell detector with fast detection speed and high efficiency.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A lithium-ion battery bare cell detection machine, including a base frame and a conveyor belt installed on the base frame, a bracket is installed on the base frame across the top of the conveyor belt, and a detection cylinder, a piezoelectric core cylinder and a detection cylinder are sequentially installed on the bracket A short-circuit detector, a detection probe is connected under the detection cylinder, a pressure plate is connected under the piezoelectric core cylinder, and the detection probe is connected with the short-circuit detector.

Preferably, the above-mentioned pressure plate is connected to the piezoelectric core cylinder through a support plate, the support plate is connected to the piezoelectric core cylinder, a slide rail is provided on the lower surface of the support plate, the pressure plate is installed on the slide rail, and a drive is provided on the support plate. The pressing plate moves back and forth along the conveying direction of the vertical conveyor belt, and the defective product unloading cylinder is installed at one end of the pressing plate to push the bare cell that detects the short circuit down the conveyor belt.

Preferably, an optical fiber sensor for sensing bare battery cores is installed on the front side of the detection cylinder on the above bracket.

Preferably, the above-mentioned conveyor belt is driven by a stepping motor.

The utility model has the following remarkable effects:

The utility model has a reasonable structural design of the bare cell detection machine for lithium-ion batteries. The detection machine can be directly installed on the production line for streamline production to realize the automatic detection of the short circuit of the bare cell of the battery, instead of manual detection. The detection speed is fast and the efficiency is high. , the detection rate of good products can be increased to 98%, which greatly saves inspection workers, reduces labor intensity, and saves production costs. It also realizes automatic blanking of qualified products and unqualified products, greatly improving production efficiency; The contact strength of the lug detection is uniform, which greatly improves the service life of the detection probe.

Description of drawings

Accompanying drawing 1 is the three-dimensional structure schematic diagram of the present utility model;

Accompanying drawing 2 is the enlarged structural diagram of part A in accompanying drawing 1.

detailed description

In order to facilitate the understanding of those skilled in the art, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in the accompanying drawings 1-2, the lithium-ion battery bare cell detection machine disclosed in this embodiment is used to detect whether the bare battery is short-circuited. The detection machine includes a base frame 1 and a conveyor belt 2 installed on the base frame 1. The conveyor belt 2 The work is driven by a stepping motor 10; a bracket 3 is installed across the top of the conveyor belt 2 on the base frame 1, and a detection cylinder 4, a piezoelectric core cylinder 5 and a short circuit detector 6 are sequentially installed on the bracket 3, and the detection cylinder 4 is connected below There is a detection probe 40 , a pressure plate 50 is connected below the piezoelectric core cylinder 5 , and the detection probe 40 is connected to the short circuit detector 6 . In order to facilitate the detection of the work of the cylinder 4 and the piezoelectric core cylinder 5 , an optical fiber sensor 9 for sensing the bare cell of the battery is installed on the front side of the detection cylinder 4 on the bracket 3 .

When the utility model works, the stepping motor 10 is started, and the stepping motor 10 drives the conveyor belt 2 to work. The bare cells of the battery to be detected are placed on the conveyor belt 2 to be transported forward. The bare cells of the battery to be detected first pass under the optical fiber sensor 9, and when When the optical fiber sensor 9 senses the bare cell of the battery to be detected, the stepper motor 10 stops working, and the conveyor belt 2 also stops working; then, the detection cylinder 4 and the piezoelectric core cylinder 5 work simultaneously, and the piezoelectric core cylinder 5 drives the pressing plate 50 to Press down to press the bare cell of the battery. At the same time, the detection cylinder 4 drives the detection probe 40 to work downward to touch the tab of the bare cell. The short circuit detector 6 detects the short circuit of the bare cell and transmits the detection result to the control panel. on the system.

The detection machine of the utility model can be directly installed on the production line for streamline production, realizes automatic short-circuit detection of bare battery cells, replaces manual detection, has fast detection speed and high efficiency, and the detection rate of good products can be increased to 98%, which greatly saves Detecting workers reduces labor intensity and saves production costs; the service life of the detecting probe 40 is greatly improved because the detecting contact force between the detecting probe 40 and the battery lug is uniform.

In order to collect and detect short-circuited bare cells conveniently, a support plate 7 is provided. The pressure plate 50 is connected to the piezoelectric core cylinder 5 through the support plate 7. The support plate 7 is connected to the piezoelectric core cylinder 5. When the piezoelectric core cylinder 5 is working, Simultaneously drive the supporting plate 7 and the pressing plate 50 to move upward or downward. A slide rail is provided on the bottom surface of the support plate 7, and the pressing plate 50 is installed on the slide rail. The defective product unloading cylinder 8 that drives the pressing plate 50 to move back and forth along the conveying direction of the vertical conveyor belt 2 is arranged on the supporting plate 7, and is installed at one end of the pressing plate 50. There is push block 80. When a short-circuited bare cell is detected, the piezoelectric core cylinder 5 drives the support plate 7 and the pressure plate 50 to move upward at the same time, and the pressure plate 50 releases the short-circuited bare cell. Then, the defective product unloading cylinder 8 drives the pressure plate 50 to move, and the pressure plate 50 The push block 80 is driven to push the bare cell detected for short circuit down the conveyor belt; In this way, the automatic blanking of qualified products and unqualified products can be realized, and the production efficiency can be greatly improved.

The above-mentioned embodiment is the preferred solution for the realization of the utility model, and it is not exhaustive. Under the same concept, the utility model can also have other transformation forms. It should be noted that, without departing from the inventive concept of the utility model, any Obvious replacements are all within the protection scope of the present utility model.

Claims (4)

1. A lithium-ion battery bare cell testing machine, comprising a base frame (1) and a conveyor belt (2) mounted on the base frame, characterized in that: a bracket (3) is installed on the base frame across the top of the conveyor belt , a detection cylinder (4), a piezoelectric core cylinder (5) and a short circuit detector (6) are sequentially installed on the bracket, a detection probe (40) is connected under the detection cylinder, and a pressure plate (50) is connected under the piezoelectric core cylinder ), the detection probe is connected to the short circuit detector. 2. The lithium-ion battery bare cell testing machine according to claim 1, characterized in that: the pressure plate is connected to the piezoelectric core cylinder through a support plate (7), and the support plate is connected to the piezoelectric core cylinder. There is a slide rail on the lower surface of the support plate, and the pressure plate is installed on the slide rail. On the support plate, there is a defective product unloading cylinder (8) that drives the pressure plate to move back and forth along the vertical conveying direction of the conveyor belt. A short circuit detection device is installed on one end of the pressure plate. The bare cell pushes down the push block (80) of the conveyor belt. 3. The lithium-ion battery bare cell detection machine according to claim 1, characterized in that: an optical fiber sensor (9) for sensing battery bare cells is installed on the front side of the detection cylinder on the bracket. 4. The lithium-ion battery bare cell inspection machine according to claim 1, characterized in that: the conveyor belt is driven by a stepping motor (10).