Battery detection jig

Abstract

The utility model relates to a battery detection jig, including the outer shell, be provided with alarm and detection block on the outer shell, the detection block protrudes the surface of outer shell, the detection block is provided with the probe in the penetrating way, the top of the detection block is provided with the hole for the probe to expose, the inner part of outer shell is provided with the detection circuit, and the detection circuit is connected with the alarm. And the detection circuit is electrically connected with the probe and the alarm. The device can detect whether the insulation sheet at the end part of the battery is not pasted or not and whether the heat shrink tube sleeved outside the battery is deviated or not, is simple and convenient to operate, can effectively prevent defective products from flowing out, and ensures the yield of products.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, and in particular to a battery testing jig. Background Art

[0002] The existing packaging method for some lithium-ion batteries is to weld and assemble the steel-shell cylindrical battery cell with the BMS, and then use Mylar sheets, silicone pads or other insulating sheet materials to stick to the positive and negative poles of the battery to insulate the battery. Then, heat shrink tubing is applied to the battery cell to insulate the entire battery. Currently, some products have the problem of missing insulation sheets. If these defective products are not discovered in time, they will easily lead to a decrease in product yield and cause customer complaints. In addition, when applying the heat shrink tubing, improper operation may cause the heat shrink tubing to be skewed, resulting in certain appearance quality problems of the product, requiring rework and resulting in a certain amount of waste. Therefore, a device that can detect the lithium-ion batteries after such packaging is urgently needed to prevent the outflow of defective products. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a battery testing fixture that is quick and easy to operate.

[0004] A battery testing fixture includes an outer shell, an alarm and a testing block provided on the outer shell, the testing block protruding from the surface of the outer shell, a probe passing through the testing block, a hole for exposing the probe being opened at the top of the testing block, a testing circuit provided inside the outer shell, and the testing circuit being electrically connected to the probe and the alarm.

[0005] In the above technical solution, the battery inspection jig is used to detect whether the insulating sheet at the end of the battery is missing, and to position the heat shrink tube sleeved on the outside of the battery to detect whether it is skewed. The battery is located inside the heat shrink tube, and the end of the battery steel shell is a certain distance away from the end of the heat shrink tube to facilitate detection. The diameter of the detection block is smaller than the diameter of the heat shrink tube, so that the heat shrink tube can be sleeved on the detection block for detection. During the inspection, the heat shrink tube is sleeved on the detection block so that the internal battery end is in contact with the top surface of the detection block. Since the battery is made of steel shell, if the battery misses the insulating sheet, the end of the battery will contact the probe to turn on the detection circuit inside the outer shell. At this time, the buzzer will sound an alarm to prompt, thereby effectively preventing the outflow of defective products. At the same time, when the battery contacts the detection block, if the end of the heat shrink tube is completely in contact with the surface of the jig, the positioning of the heat shrink tube is completed, proving that the heat shrink tube is not skewed, thereby realizing the position detection of the heat shrink tube.

[0006] Optionally, in a possible implementation manner, the detection block is a cylindrical structure.

[0007] In the above technical solution, the detection block is a cylindrical structure, which is convenient for fitting with the heat shrink tube, and the height of the detection block protruding from the surface of the outer shell is customized according to the difference between the battery end and the heat shrink tube.

[0008] Optionally, in a possible implementation manner, two probes are provided, and the detection circuit is open at the positions of the two probes.

[0009] In the above technical solution, two probes are provided at the open ends of the detection circuit. If the insulating sheet of the battery is not attached, when the end of the battery contacts the detection block, the two probes will be connected, thereby making the entire detection circuit conductive, and the buzzer will sound an alarm to prompt.

[0010] Optionally, in a possible implementation manner, the detection block is an insulating structure made of insulating material.

[0011] In the above technical solution, the detection block is made of insulating material to avoid affecting the probes passing through the detection block, thereby ensuring the normal progress of the detection process.

[0012] Optionally, in a possible implementation manner, a warning light is further provided on the outer shell, and the warning light is electrically connected to the detection circuit.

[0013] In the above technical solution, when the detection circuit is turned on, the prompt light will light up, so as to play a further prompting role based on the alarm issued by the buzzer.

[0014] Optionally, in a possible implementation manner, a power supply is provided inside the outer shell, and the power supply is used to supply power to the detection circuit.

[0015] In the above technical solution, the power supply is provided on the detection circuit and is used to supply power to the buzzer and the indicator light connected to the detection circuit.

[0016] The beneficial effects of this application are:

[0017] This application uses a detection block and a probe inserted into the detection block to detect whether the insulating sheet at the end of the battery is missing and whether the heat shrink tube on the outside of the battery is skewed, thereby effectively detecting defective products. The detection can be completed by simply putting the battery end on the detection block, and the operation is simple and convenient. At the same time, this application is also provided with a buzzer. When the insulating sheet is missing from the end of the battery, the buzzer will sound an alarm to alert the staff, thereby effectively preventing the outflow of defective products and ensuring the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A three-dimensional diagram of a battery testing fixture according to an embodiment (under testing conditions).

[0020] Figure 2 for Figure 1 Magnified view of area A in center.

[0021] Figure 3 This is a schematic diagram of the detection circuit described in this application.

[0022] Description of reference numerals in the figures:

[0023] 1-Outer shell; 11-Detection block; 12-Probe; 13-Buzzer; 14-Indicator light; 2-Battery; 3-Heat shrink tubing; 4-Connecting wire; 5-Power supply. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0027] Please refer to Figures 1 to 3In a preferred embodiment of the present application, a battery testing jig is provided for detecting whether the insulating sheet at the end of a packed lithium-ion battery is missing and whether the heat shrink tube 3 on the outside of the battery is skewed. The jig comprises an outer shell 1, and an alarm and a testing block 11 provided on the outer shell 1. The testing block 11 protrudes from the surface of the outer shell 1, and a probe 12 is passed through the testing block 11. A hole is provided on the top of the testing block 11 for exposing the probe 12. A testing circuit is provided inside the outer shell 1, and the testing circuit is electrically connected to the probe 12 and the alarm.

[0028] It should be noted that the products being tested in this embodiment include a battery 2, a heat shrink tube 3, and a connecting wire 4. The battery 2 is located inside the heat shrink tube 3. After the heat shrink tube 3 is sleeved on the battery 2, the bottom of the battery 2 is at a certain distance from the end of the heat shrink tube 3, thereby ensuring the insulation and protection effect of the heat shrink tube 3 on the battery 2. The diameter of the test block 11 is smaller than the inner diameter of the heat shrink tube 3, so that the heat shrink tube 3 can be sleeved on the test block 11 for testing; in addition, before the battery 2 is assembled with the heat shrink tube 3, a mylar sheet, barley paper, or a silicone pad (hereinafter referred to as an insulating sheet) is affixed to the bottom of the battery 2 to insulate the positive and negative poles of the battery 2.

[0029] In this embodiment, specifically, when the battery 2 is tested, the bottom of the heat shrink tube 3 is put on the detection block 11 so that the bottom of the internal battery 2 fits in with the top surface of the detection block 11. Since the battery 2 is made of steel shell, if the battery 2 misses the insulating sheet, the bottom of the battery 2 will contact the probe 12 to make the detection circuit inside the outer shell 1 conductive. At this time, the buzzer 13 will sound an alarm to prompt, thereby effectively preventing defective products from flowing out. At the same time, after the battery 2 contacts the detection block 11, it is observed from the horizontal direction. If the end of the heat shrink tube 3 is completely in contact with the surface of the fixture, the positioning of the heat shrink tube 3 is completed, proving that the heat shrink tube 3 is not completely in contact. If it is not completely in contact, it proves that the heat shrink tube 3 is in contact, and the product has a poor appearance, thereby quickly screening out defective products and preventing them from flowing out.

[0030] Specifically, the buzzer 13 can be replaced by other sound-emitting elements, as long as it can provide a warning, and no specific limitation is made here.

[0031] Please refer to Figure 2 In a non-limiting embodiment of the present invention, the detection block 11 is a cylindrical structure, which is convenient for fitting with the heat shrink tube 3 during testing. The height of the detection block 11 protruding from the surface of the outer shell 1 is set according to the difference between the end of the battery 2 and the heat shrink tube 3. Specifically, when the bottom of the battery 2 contacts the top surface of the detection block 11 and the bottom of the heat shrink tube 3 contacts the surface of the outer shell 1, it is defined that the heat shrink tube 3 is fitted properly.

[0032] Please refer to Figure 2In a non-limiting embodiment of the present invention, two probes 12 are provided, and an open circuit is formed in the detection circuit at the positions of the two probes 12. The two probes 12 are respectively connected to the two ends of the open circuit of the detection circuit. During detection, if the insulating sheet of the battery 2 is not pasted, when the end of the battery 2 contacts the detection block 11, the two probes 12 can be connected, thereby making the entire detection circuit conductive. At this time, the buzzer 13 located on the detection circuit will sound an alarm, reminding the staff that the insulating sheet is missing, thereby effectively preventing the outflow of defective products.

[0033] Please refer to Figure 2 In a non-limiting embodiment of the present invention, the detection block 11 is made of insulating material to avoid affecting the probe 12 passing through the detection block 11 and ensure the normal progress of the detection process.

[0034] Please refer to Figure 1 In a non-limiting embodiment of the present invention, a warning light 14 is further provided on the outer shell 1. The warning light 14 is electrically connected to the detection circuit. When the detection circuit is turned on, the warning light 14 will light up, and the buzzer 13 will sound an alarm, which serves as a further warning.

[0035] Specifically, the warning light 14 in this embodiment is an LED light. In addition, other light-emitting elements can also be selected.

[0036] Please refer to Figure 3 In a non-limiting embodiment of the present invention, a power supply 5 is provided inside the outer shell 1, and the power supply 5 is used to power the detection circuit. The power supply 5 is provided on the detection circuit and is used to power the buzzer 13 and the prompt light 14 connected to the detection circuit.

[0037] Specifically, Figure 3 The circuit diagram of the detection circuit is shown in FIG. 1 , wherein the buzzer 13 and the warning light 14 are connected in parallel and work independently of each other to ensure that when one of them fails, the other can still function, thereby improving the reliability of the detection.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

[0039] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. A battery testing fixture, characterized in that: It includes an outer shell, and an alarm and a detection block arranged on the outer shell. The detection block is protruding from the surface of the outer shell. A probe is passed through the detection block. A hole is opened on the top of the detection block for exposing the probe. A detection circuit is provided inside the outer shell, and the detection circuit is electrically connected to the probe and the alarm.

2. The battery testing jig according to claim 1, characterized in that: The detection block is a cylindrical structure.

3. The battery testing jig according to claim 1, characterized in that: Two probes are provided, and the detection circuit is open at the positions of the two probes.

4. The battery testing jig according to claim 1, characterized in that: The detection block is an insulating structure made of insulating material.

5. The battery testing jig according to claim 1, characterized in that: The outer shell is also provided with a warning light, and the warning light is electrically connected to the detection circuit.

6. The battery testing jig according to claim 1, characterized in that: A power supply is provided inside the outer shell, and the power supply is used to supply power to the detection circuit.

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