CN204789802U - Simple and easy testing arrangement of protection shield - Google Patents

Abstract

The utility model relates to a simple testing device for a protection board. The technical solution adopted by the utility model is: a simple testing device for a protective plate, including a housing, characterized in that the front side of the housing is concave to form an inclined instrument observation surface and a horizontal control switch surface, and the instrument observation surface There are multiple sets of voltmeters, ammeters and indicator lights, and the control switch surface is equipped with four sets of control switches evenly distributed, a set of balance test control switches, a set of internal resistance test control switches and a set of self-consumption control switches; the shell The front vertical surface of the housing is provided with a main switch, a wire output hole, and a connector for voltage collection. Connectors and adjustment knobs.

Description

Simple test device for protection board

technical field

The utility model relates to a simple testing device for a protection board.

Background technique

As a product of the new energy industry, lithium batteries have been widely used in various fields such as energy storage and power. Because of its excellent characteristics, it has gradually replaced dry batteries, nickel-hydrogen nickel-cadmium batteries, etc., but because of the characteristics of lithium battery cells, there are also some characteristics in use. First of all, lithium batteries must not be overcharged. Overcharging may cause battery damage. Explosion, fire, expansion and other safety accidents may cause personal injury. Lithium batteries cannot be over-discharged. The material of the lithium battery itself determines that it cannot be charged and discharged by overcharge, overdischarge, overcurrent, short circuit and ultra-high temperature, so it needs certain protection. In order to better use lithium batteries, avoid safety accidents in the use of lithium batteries and prolong the service life of lithium batteries, the lithium battery protection board has become a key component in the application of lithium batteries. Whether the lithium battery protection board can effectively protect it has become an absolutely critical factor.

For a long time, the effective detection of lithium battery protection board has been a relatively difficult problem. Lithium battery protection board involves many parameters and requires relatively high precision. Therefore, when testing the protection board, the measurement accuracy and test time constitute a big contradiction. , and the price of this test instrument is usually relatively expensive, causing many small and medium-sized enterprises to be discouraged. In order to solve this problem and allow more small and medium-sized enterprises to test each parameter of the protection board faster and at a lower cost, a multifunctional simple test device for the protection board is designed.

Contents of the invention

The purpose of the utility model is to provide a simple testing device for the protection board, which solves the problem of the complicated and high price of the protection board testing device, and at the same time can test various parameters of the protection board more accurately and quickly.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a simple test device for the protective plate, including a housing, which is characterized in that the front side of the housing is concave to form an inclined instrument viewing surface and a horizontal control switch There are multiple groups of voltmeters, ammeters and indicator lights on the observation surface of the instrument, and four sets of control switches, a set of balance test control switches, a set of internal resistance test control switches and a set of self-consumption power switches are evenly distributed on the control switch surface. control switch;

The front vertical surface of the housing is provided with a main switch, wire output holes, and connectors for voltage collection, and the side of the housing is provided with a buzzer, a connector for series connection, a connector for internal resistance test and a connector for continuity test, Reserve connectors and adjustment knobs;

The back side of the housing is a detachable back cover, and the back cover is provided with fixing holes around the back cover to fix the back cover to the housing, and the lower part of the back cover is provided with a mains socket, a cooling fan, a charging positive socket and a charging negative socket;

A battery pack, constant current load module, DC-DC module and AC-DC module are arranged inside the casing, a baffle is set on the inner bottom of the casing to fix the battery pack, and the constant current load module, DC-DC module and AC-DC module are respectively It is fixed on the bottom surface inside the housing through the fixing hole.

As a preference, there are holes on the surface of the casing to embed the buzzer and the indicator light, and there are two wire output holes, which are respectively located on both sides of the front vertical surface of the casing, and the cooling fan and the mains power socket pass through the fixing holes. Fixed on the back cover, two sets of buzzers are respectively located on both sides of the shell, the connectors for series connection, internal resistance test and continuity test are set on the right side of the shell, and the connectors are reserved and the adjustment knob are arranged on the left side of the housing.

The utility model has the advantages that the design of the housing adopts the design concept of ergonomics, which ensures the healthier and more effective operation of the employees during use.

There is a heat dissipation fan on the housing, and when the device generates a lot of heat during use, it will dissipate heat to maintain the normal internal working temperature and make the device work more safely. The charging positive socket and charging negative socket on the back cover are mainly for charging the internal lithium battery, so that the internal lithium battery can maintain the normal working voltage required by the test protection board. The accuracy of the test protection board is guaranteed.

The voltmeter and ammeter on the housing are mainly to display the required data more intuitively during the test of the protection board, and to separate each item of data, which is conducive to more quickly judging whether the result of each parameter is correct.

The main switch control switch, the balance test control switch, the internal resistance test control switch and the self-consumption test control switch are provided on the shell, mainly by controlling these switches to control and detect the parameters of each string of the protection board, and at the same time It is also possible to control the testing of different parameters by means of a switch, and to perform power-on of the device by means of a switch.

Connectors for series connection and voltage signal collection on the shell can not only provide voltage signals for connection with the protection board when testing the protection board, but also allow devices to be used in series through the connector to meet the requirements of testing different series. Several protection board performance parameters.

The connector for internal resistance test and continuity test provided on the shell is the connection line for internal resistance test and the connection line for testing whether the protection board is working normally, which makes the test more simple.

The buzzer and indicator light are provided on the shell to know the test result and test situation more visually when testing the protection board.

The adjustment knob provided on the housing can adjust the voltage range required for testing the protection board by adjusting the control knob. The DC-DC module, AC-DC module and constant current load module inside the shell are the test circuit parts required for testing the protection board, and the test of the protection board is realized by using different circuits.

Description of drawings

Fig. 1 is a structural representation one of the utility model;

Fig. 2 is the structural representation two of the utility model;

Fig. 3 is a schematic diagram of the rear internal structure of the utility model;

Fig. 4 is a structural schematic diagram of the utility model rear cover;

Fig. 5 is a schematic diagram of the decomposition structure of the utility model;

Fig. 6 is the circuit connection diagram of each part of the utility model;

In the drawings: 1. Housing, 2. Battery pack, 3. Back cover, 4. Connector for series connection, 5. Connector for internal resistance test, 6. Connector for continuity test, 7. Voltmeter, 8 . Ammeter, 9. Connector for voltage signal acquisition, 10. Main switch, 11. Control switch, 12. Balance test control switch, 13. Internal resistance test control switch, 14. Self-consumption test control switch, 15. Buzzer Device, 16. Indicator light, 17. Reserved connector, 18. Adjusting knob, 19. Baffle plate, 20. Constant current load module, 21. DC-DC module, 22. AC-DC module, 23. Rear cover fixing Hole, 24, wire output hole, 25, mains socket, 26, cooling fan, 27, charging positive pole socket, 28, charging negative pole socket.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

As shown in the figure: the front side of the shell is concave to form an inclined instrument observation surface and a horizontal control switch surface. There are multiple sets of voltmeters, ammeters and indicator lights on the instrument observation surface, and four sets of evenly distributed control switch surfaces Control switches, a set of balance test control switches, a set of internal resistance test control switches, and a set of self-consumption control switches. The design of the shell adopts the design concept of human body, which ensures that employees are more healthy and effective during use. operate.

The battery pack 2 is fixed inside the device housing 1 through the baffle plate 19, and the constant current load module 20, the DC-DC module 21 and the AC-DC module 22 are installed in the device housing 1 through the fixing holes and connected so as to realize the test. required functionality. The voltmeter 7 and the ammeter 8 are fixed on the front surface of the device housing 1 through the mounting holes, mainly for the purpose of displaying the required data more intuitively during the test of the protection board, and separating each item of data independently, which is beneficial to more Quickly judge whether the result of each parameter is correct.

The main switch 10, the control switch 11, the self-consumption control switch 14, the balance test control switch 12 and the internal resistance test control switch 13 are respectively fixed on the device housing 1 through the switch mounting holes. Mainly, the parameters of each string of the detection protection board can be controlled by controlling these switches, and at the same time, the tests of different parameters can be controlled through the switches, and the device can be powered on through the switches.

The connectors 4 for series connection, the connectors 5 for internal resistance testing and the connectors 9 for voltage collection are also respectively fixed on both sides and the front of the casing 1 through the mounting holes. Connectors for series connection Connectors for voltage signal acquisition can not only provide voltage signals for the connection with the protection board when testing the protection board, but also use the device in series through the connector to meet the performance parameters of the test protection board with different numbers of strings . Connector for internal resistance test The connector for continuity test is the connection line for internal resistance test and the connection line for testing whether the protection board is working normally, which makes the test more simple. The buzzer 15 and the indicator light are for knowing the test result and the test situation more visually when the protection board is tested.

There are lead output holes 16 respectively on both sides of the lower part directly in front of the housing 1 . Cooling fan 26 is fixed on the back cover 3 of device by fan fixing hole 30, and mains socket 25 is also fixed on the back cover 3 of device by fixing hole, and back cover 3 and housing 1 are fixed by back cover fixing hole 23.

The voltage range required for testing the protection board can be adjusted by adjusting the control knob. The DC-DC module, AC-DC module and constant current load module inside the shell are the test circuit parts required for testing the protection board, and the test of the protection board is realized by using different circuits.

The utility model is used for the test of the protection board, adopts the combined action of the lithium battery and the voltage simulation to test various performances of the protection board, and this method can test the performance of the protection board more effectively and truly. The utility model can meet the performance tests of various protection boards in the simplest way and at a lower price through the combination of various circuits, and is suitable for use by small and medium-sized enterprises.

Claims (6)

1. A simple test device for a protective plate, comprising a housing (1), characterized in that the front side of the housing (1) is concave to form an inclined instrument observation surface and a horizontal control switch surface, and the instrument observation surface is set There are multiple sets of voltmeters (7), ammeters (8) and indicator lights (16), and four sets of control switches (11) evenly distributed on the control switch surface, a set of balance test control switches (12), and a set of internal resistance Test the control switch (13) and a group of self-consumption control switches (14), The front vertical surface of the housing (1) is provided with a main switch (10), a wire output hole (24), a connector for voltage collection (9), and two groups of buzzers (15) are provided on the side of the housing (1). ), connectors for series connection (4), connectors for internal resistance test (5), connectors for continuity test (6), reserved connectors (17) and adjustment knobs (18); The rear side of the housing (1) is a detachable rear cover (3), and the rear cover (3) is provided with fixing holes (23) around the circumference to fix the rear cover (3) to the housing (1), and the rear cover (3) The lower position is provided with a mains socket (25), a cooling fan (26), a charging positive socket (27) and a charging negative socket (28); A battery pack (2), a constant current load module (20), a DC-DC module (21) and an AC-DC module (22) are arranged inside the casing (1), and a baffle (19) is arranged on the inner bottom of the casing (1). ) to fix the battery pack (2), and fix the constant current load module (20), the DC-DC module (21) and the AC-DC module (22) to the bottom surface inside the housing (1) through the fixing holes respectively. 2. The simple protective plate testing device according to claim 1, characterized in that the surface of the housing (1) has holes for embedding the buzzer (15) and indicator light (16). 3. The simple protective plate testing device according to claim 1, characterized in that, there are two wire output holes (24), which are respectively located on both sides of the front vertical surface of the housing (1). 4. The simple test device for the protection board according to claim 1, characterized in that the cooling fan (26) and the mains socket (25) are fixed on the rear cover (3) through the fixing holes (29). 5. The simple test device for protective board according to claim 1, characterized in that two groups of buzzers (15) are respectively located on the two sides of the casing (1). 6. The simple test device for protective board according to claim 1, characterized in that, the connector for series connection (4), the connector for internal resistance test (5) and the connector for continuity test (6) are arranged in the housing On the right side of the casing, reserved connectors (17) and adjustment knobs (18) are set on the left side of the housing.