Device for measuring polarity of lithium battery

Abstract

The utility model provides a device for measuring the polarity of a lithium battery. The device comprises a box body, a weight measuring assembly, a thickness measuring assembly, a polarity measuring assembly and a display screen, a weight measuring assembly is arranged at the bottom of the box body, thickness measuring assemblies are arranged on the two side walls of the box body, a polarity measuring assembly and a display screen are arranged on the top wall of the box body, and the weight measuring assembly, the thickness measuring assemblies and the polarity measuring assembly are all electrically connected with the display screen. According to the utility model, through mutual cooperation of the weight measuring assembly, the thickness measuring assembly, the polarity measuring assembly and the display screen, the weight value can be displayed by placing the battery into the box body, and the voltage, internal resistance and thickness values can be displayed by connecting the positive and negative electrodes of the battery through the polarity measuring assembly, so that the efficiency and safety of battery polarity measurement are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion battery testing, in particular to a device for measuring the polarity of a lithium battery. Background Art

[0002] As an emerging new energy source, lithium-ion batteries are in a booming development stage. Their development and research are also in full swing as a national key project, and various analyses and tests on the materials, performance, and safety of lithium-ion batteries are being carried out.

[0003] A large number of test batteries to be tested will be placed on the shelves first. The shelves store battery cells of various types and huge quantities, and the polarity of the batteries needs to be measured regularly. At present, the polarity of the batteries is mainly measured manually with specific tools, which has low work efficiency and cannot guarantee the safety of the battery measurement process. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to improve the efficiency and safety of battery polarity measurement.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A device for measuring the polarity of a lithium battery comprises a box (1), a weight measuring component (2), a thickness measuring component (3), a polarity measuring component (4), and a display screen (5); the weight measuring component (2) is arranged at the bottom of the box (1), the thickness measuring component (3) is arranged on both side walls of the box (1), the polarity measuring component (4) and the display screen (5) are arranged on the top wall of the box (1), and the weight measuring component (2), the thickness measuring component (3), and the polarity measuring component (4) are all electrically connected to the display screen (5).

[0007] Beneficial effects: Through the cooperation of the weight measuring component, thickness measuring component, polarity measuring component and display screen, the weight value can be displayed by placing the battery inside the box. The voltage, internal resistance and thickness value can be displayed by connecting the positive and negative poles of the battery through the polarity measuring component, which effectively improves the efficiency and safety of battery polarity measurement.

[0008] Furthermore, the box body (1) comprises a base body (11) and a door body (12); the base body (11) is a front-opening door; the door body (12) is composed of two door panels; and the door body (12) is arranged at the opening of the base body (11).

[0009] Furthermore, the door body (12) and the base body (11) are arranged in a magnetic attraction manner.

[0010] Beneficial effect: The magnetic setting can not only reduce the space used by the device, but also facilitate opening and closing the door.

[0011] Furthermore, the box body (1) is made of aluminum alloy.

[0012] Furthermore, the surface of the box body (1) is coated with Teflon insulating material.

[0013] Beneficial effect: By applying Teflon insulating material, the short circuit problem between the positive and negative electrodes of the battery during the test is avoided.

[0014] Furthermore, the weighing assembly (2) comprises a weighing platform (21), a level (22), and a baffle (23); the level (22) is fixed on the weighing platform (21), and two baffles (23) are slidably connected to the middle of the weighing platform (21).

[0015] Beneficial effect: Through the cooperation of the weighing platform, the level and the baffle, the level can ensure the level of the weighing platform, the baffle can ensure the verticality of the lithium battery, and the laser displacement sensors installed on the left and right inner walls can illuminate the battery surface at the same time, so as to realize non-contact measurement of battery thickness.

[0016] Furthermore, the weighing assembly (2) further comprises a mounting rod (24); a plurality of mounting holes (111) are provided inside the bottom wall of the base (11); a plurality of mounting rods (24) are threadedly connected to the weighing platform (21); and the mounting rods (24) penetrate the weighing platform (21) and are threadedly connected to the mounting holes (111).

[0017] Beneficial effect: Through the cooperation between the mounting rod and the mounting hole, the distance between the weighing platform and the base can be adjusted by rotating the mounting rod.

[0018] Furthermore, four mounting holes (111) are provided inside the bottom wall of the base (11), and mounting rods (24) are threadedly connected at the four corners of the weight measuring platform (21).

[0019] Furthermore, the thickness measuring component (3) comprises two laser displacement sensors (31).

[0020] Furthermore, the polarity measuring component (4) comprises an internal resistance meter, a voltage line (42), and a clip (43); the internal resistance meter is fixed on the top wall of the substrate (11); two voltage lines (42) are fixed to the output end of the internal resistance meter; and the free ends of the two voltage lines (42) are both fixed with clips (43).

[0021] The advantages of the utility model are:

[0022] The utility model can display the weight value by putting the battery into the box through the cooperation of the weight measuring component, the thickness measuring component, the polarity measuring component and the display screen, and can display the voltage, internal resistance and thickness values ​​by connecting the positive and negative poles of the battery through the polarity measuring component, thereby effectively improving the efficiency and safety of battery polarity measurement.

[0023] The utility model adopts a magnetic suction type setting, which can not only reduce the space used by the device, but also facilitate the opening and closing of the door.

[0024] The utility model avoids the problem of short circuit between the positive and negative electrodes of the battery during the test process by coating the Teflon insulating material.

[0025] The utility model realizes non-contact measurement of battery thickness by the mutual cooperation of the weighing platform, the level meter and the baffle plate. The level meter can ensure that the weighing platform is level, the baffle plate can ensure that the lithium battery is vertical, and the laser displacement sensors installed on the left and right inner walls irradiate the battery surface at the same time.

[0026] The utility model can adjust the distance between the weight measuring platform and the base body by rotating the mounting rod through the mutual cooperation of the mounting rod and the mounting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a three-dimensional exploded view of a device for measuring polarity of a lithium battery in Embodiment 1 of the utility model;

[0028] Figure 2 This is a three-dimensional diagram of a weight measuring component in a device for measuring polarity of a lithium battery according to a first embodiment of the utility model;

[0029] Figure 3 This is a working diagram of a thickness measuring component in a device for measuring polarity of a lithium battery according to a first embodiment of the utility model. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Embodiment 1

[0032] like Figure 1 , Figure 2 As shown, this embodiment provides a device for measuring polarity of a lithium battery, including a box body 1, a weight measuring component 2, a thickness measuring component 3, a polarity measuring component 4, and a display screen 5.

[0033] like Figure 1 , Figure 2 As shown, the box 1 includes a base 11 and a door 12. The base 11 is a front-opening door, and the door 12 is composed of two door panels. The door 12 and the base 11 are magnetically arranged, which can not only reduce the space used by the device, but also facilitate opening and closing the door. The box 1 is made of aluminum alloy, which is relatively light in weight while ensuring safety; the surface of the box 1 is coated with Teflon insulating material to avoid short circuit problems between the positive and negative poles of the battery during the test; a plurality of mounting holes 111 are provided inside the bottom wall of the base 11, and four mounting holes 111 are provided inside the bottom wall of the base 11 in the example of this embodiment, and the four mounting holes 111 are arranged in a rectangular arrangement for installing a weight measuring component 2; a thickness measuring component 3 is fixed inside the side wall of the base 11; a polarity measuring component 4 is fixed inside the top wall of the base 11; and a display screen 5 is fixed outside the top wall of the base 11.

[0034] like Figure 1 , Figure 2 As shown, the weighing assembly 2 includes a weighing platform 21, a level 22, a baffle 23, and a mounting rod 24. The level 22 is fixed on the weighing platform 21. By observing the level 22, the height of the mounting rod 24 is adjusted to keep the plane in a horizontal state. Two baffles 23 are slidably connected to the middle of the weighing platform 21. The distance between the two baffles 23 can be adjusted according to the size of the lithium battery. Four mounting rods 24 are provided. The mounting rods 24 are threadedly connected at the four corners of the weighing platform 21. The mounting rods 24 penetrate the weighing platform 21 and are threadedly connected in the mounting hole 111. The distance between the weighing platform 21 and the substrate 11 can be adjusted by rotating the mounting rod 24. The weighing platform 21 is a prior art and has the function of measuring the weight of the lithium battery. The weighing platform 21 is electrically connected to the display screen 5 and can display the weight of the lithium battery on the display screen 5.

[0035] like Figure 1 , Figure 3 As shown, the thickness measuring component 3 includes two laser displacement sensors 31. The laser displacement sensor 31 is a prior art and can simultaneously emit to the left and right surfaces of the lithium battery to measure the thickness of the lithium battery. The laser displacement sensor 31 is electrically connected to the display screen 5 and can display the thickness of the lithium battery on the display screen 5.

[0036] like Figure 1 As shown, the polarity measuring component 4 includes an internal resistance meter (not shown), a voltage line 42, and a clip 43. The internal resistance meter is fixed on the top wall of the substrate 11. The resistance and voltage data on the internal resistance meter can be displayed on the display screen 5. Two voltage lines 42 are fixed to the output end of the internal resistance meter. The free ends of the two voltage lines 42 are fixed with clips 43 for clamping the positive and negative poles of the lithium battery.

[0037] When in use, the lithium battery is placed between the two baffles 23, so that the battery and the laser displacement sensor 31 can be kept in a vertical state. The laser displacement sensors 31 installed on the left and right inner walls are simultaneously irradiated on the battery surface, so that non-contact measurement of the battery thickness can be achieved; the voltage line 42 vertically lowered from the top acts on the positive and negative electrodes of the battery to achieve the measurement of the voltage internal resistance; all circuits of this device are connected to the top display screen 5 through the internal interlayer of the base 11, and the top display is convenient for recording data. The battery is placed in the base 11 to display the weight value, and the positive and negative electrodes are connected to display the voltage, internal resistance, and thickness values, so that single-person operation can be achieved, which reduces manpower and increases work efficiency.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for measuring polarity of a lithium battery, characterized in that: It comprises a box (1), a weight measuring component (2), a thickness measuring component (3), a polarity measuring component (4), and a display screen (5); A weight measuring component (2) is arranged at the bottom of the box (1), thickness measuring components (3) are arranged on the two side walls of the box (1), and a polarity measuring component (4) and a display screen (5) are arranged on the top wall of the box (1); the weight measuring component (2), the thickness measuring component (3), and the polarity measuring component (4) are all electrically connected to the display screen (5).

2. A device for measuring polarity of a lithium battery according to claim 1, characterized in that: The box body (1) comprises a base body (11) and a door body (12); the base body (11) is a front-opening door; the door body (12) is composed of two door panels; and the door body (12) is arranged at the opening of the base body (11).

3. A device for measuring polarity of a lithium battery according to claim 2, characterized in that: The door body (12) and the base body (11) are arranged in a magnetic attraction manner.

4. A device for measuring polarity of a lithium battery according to claim 1, characterized in that: The box body (1) is made of aluminum alloy.

5. The device for measuring polarity of a lithium battery according to claim 1, characterized in that: The surface of the box body (1) is coated with Teflon insulating material.

6. A device for measuring polarity of a lithium battery according to claim 2, characterized in that: The weighing assembly (2) comprises a weighing platform (21), a level (22), and a baffle (23); the level (22) is fixed on the weighing platform (21), and two baffles (23) are slidably connected to the middle of the weighing platform (21).

7. A device for measuring polarity of a lithium battery according to claim 6, characterized in that: The weighing assembly (2) further comprises a mounting rod (24); a plurality of mounting holes (111) are provided inside the bottom wall of the base (11); a plurality of mounting rods (24) are threadedly connected to the weighing platform (21); and the mounting rods (24) penetrate the weighing platform (21) and are threadedly connected to the mounting holes (111).

8. A device for measuring polarity of a lithium battery according to claim 7, characterized in that: Four mounting holes (111) are provided inside the bottom wall of the base (11), and mounting rods (24) are threadedly connected at the four corners of the weight measuring platform (21).

9. The device for measuring polarity of a lithium battery according to claim 1, characterized in that: The thickness measuring component (3) comprises two laser displacement sensors (31).

10. The device for measuring polarity of a lithium battery according to claim 1, characterized in that: The polarity measuring component (4) comprises an internal resistance meter, a voltage line (42), and a clip (43); the internal resistance meter is fixed on the top wall of the substrate (11); two voltage lines (42) are fixed to the output end of the internal resistance meter; and the free ends of the two voltage lines (42) are both fixed with clips (43).

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