A battery testing device

Abstract

This utility model relates to a battery testing device, belonging to the field of battery testing technology. It includes a box with an open top, a top cover, and a sample stage fixed inside the box. A transparent observation section is provided on the top cover. A temperature sensor is installed on the sample stage. A heating unit for heating the sample stage is located on one side of the sample stage, and a cooling unit for cooling the sample stage is located on the other side. The advantages of this utility model are: the heating and cooling units control the sample stage temperature, meeting the testing requirements from -160℃ to 600℃; adjustment is convenient; the optical lens is observed through the transparent observation section, and the top cover isolates heat radiation, protecting the optical lens and ensuring its temperature remains within a normal range.

Description

Technical Field

[0001] This utility model relates to the field of battery testing technology, specifically to a battery testing device. Background Technology

[0002] In the existing technology, there are devices designed for testing the optical properties of samples under varying temperatures. These devices can characterize the optical properties of samples as they change with temperature ranges from -160℃ to 600℃. They can also observe lithium batteries / electrolytes under high and low temperature conditions using optical / Raman equipment, thus enabling the study of morphological changes in liquid lithium batteries / electrolytes to a certain extent.

[0003] Optical equipment lenses require a temperature below 40°C at a working distance of 8mm, but this device cannot reach the required temperature during use. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a battery testing device that is easy to adjust in temperature and can reduce the impact of temperature on the lens of optical equipment.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A battery testing device includes a box with an open top, a top cover is provided on the top of the box, a sample stage is fixedly provided inside the box, and a transparent observation part is provided on the top cover;

[0006] A temperature sensor is installed on the sample stage. A heating unit for heating the sample stage is installed on one side of the sample stage, and a cooling unit for cooling the sample stage is installed on the other side.

[0007] The beneficial effects of this utility model are: the heating unit and the cooling unit control the temperature of the sample stage to meet the testing requirements of the sample from -160℃ to 600℃, and the adjustment is convenient. The optical equipment lens is observed by the transparent observation part, and the upper cover isolates heat radiation, protects the optical equipment lens, and keeps the temperature of the optical lens within the normal range.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the heating unit includes a heating rod, which is inserted into the sample stage.

[0010] The advantages of adopting the above-mentioned further solutions are: simple heating structure and high heating efficiency.

[0011] Furthermore, the refrigeration unit includes a U-shaped pipe located inside the sample stage. The top surface of the sample stage is provided with a sample placement hole. The U-shaped pipe is located below the sample placement hole. Both ends of the U-shaped pipe are connected to a refrigeration pipe. The end of the refrigeration pipe away from the sample stage passes through the side wall of the box and is connected to an external cold source.

[0012] The advantages of adopting the above-mentioned further solution are: the low temperature effect is stably controlled by circulating the cold source through the U-shaped pipe, which facilitates testing.

[0013] Furthermore, the transparent observation section includes a lens and a ring-shaped knob, and an observation window is provided on the upper cover. The lens is placed inside the observation window, and the ring-shaped knob is located above the lens and is threadedly connected to the inner wall of the observation window.

[0014] The advantages of adopting the above-mentioned further solution are: the transparent lens facilitates the observation of the sample, and the lens can be replaced at any time, making it convenient to use.

[0015] Furthermore, a first circulating water pipe is provided inside the upper cover. The first circulating water pipe surrounds the observation window, and both ends of the first circulating water pipe extend out of the side wall of the upper cover and are provided with a first connector.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the first connector connects to external circulating water, avoiding excessive heating of the top cover and reducing the impact of heat radiation on the lens of the optical equipment.

[0017] Furthermore, the first circulating water pipe is Ω-shaped.

[0018] The beneficial effect of adopting the above-mentioned further solution is that circulating water surrounds the observation window and lens, maximizing the cooling effect.

[0019] Furthermore, a circulating water pipe is provided on the inner side of the bottom of the box, and both ends of the circulating water pipe extend out of the side wall of the box and are provided with a second connector.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the second connector is connected to external circulating water, and the box is cooled by circulating water to avoid excessive heating of the box.

[0021] Furthermore, a refrigeration mounting plate is fixedly installed on the outer wall of the box, and a refrigeration sealing plate is fixedly installed on the refrigeration mounting plate. The refrigeration pipe passes through the side wall of the box, the refrigeration mounting plate and the refrigeration sealing plate in sequence and is connected to an external cold source.

[0022] The beneficial effects of adopting the above-mentioned further solution are: it is used to fix the refrigeration pipe and seal the gap between the refrigeration pipe and the box.

[0023] Furthermore, a sample stage bracket is fixedly provided on the bottom surface of the sample stage, and the sample stage bracket is fixedly connected to the bottom surface inside the box.

[0024] The beneficial effect of adopting the above-mentioned further solution is that the sample stage support prevents the temperature from being conducted from the sample stage to the box body.

[0025] Furthermore, the sample stage support is made of zirconia ceramic.

[0026] The beneficial effects of adopting the above-mentioned further solutions are that zirconia ceramics have high toughness, high flexural strength and excellent thermal insulation properties, and can better insulate against temperature. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the box body of this utility model.

[0028] Figure 2 This is a schematic diagram of the top cover of this utility model.

[0029] Figure 3 This is a schematic diagram of the first circulating water pipeline of this utility model.

[0030] Figure 4 This is a schematic diagram of the sample stage of this utility model.

[0031] Figure 5 This is a schematic diagram of the U-shaped pipe of this utility model.

[0032] Figure 6 This is a schematic diagram of the refrigeration mounting plate of this utility model.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Box body; 2. Top cover; 3. Sample stage; 4. Heating rod; 5. U-shaped pipe; 6. Sample placement hole; 7. Cooling pipe; 8. Lens; 9. Ring knob; 10. First circulating water pipe; 11. First connector; 12. Second connector; 13. Cooling mounting plate; 14. Cooling sealing plate; 15. Sample stage bracket; 16. Temperature sensor; 17. Sealing gasket; 18. O-ring seal; 19. Atmosphere connection connector. Detailed Implementation

[0035] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0036] Example 1

[0037] like Figures 1 to 5As shown, a battery testing device includes a box 1 with an open top, a top cover 2 covering the top of the box 1, a sample stage 3 fixed inside the box 1, and a transparent observation section on the top cover 2.

[0038] A temperature sensor 16 is provided on the sample stage 3. A heating unit for heating the sample stage 3 is provided on one side of the sample stage 3, and a cooling unit for cooling the sample stage 3 is provided on the other side.

[0039] The beneficial effects of this embodiment are: the heating unit and the cooling unit control the temperature of the sample stage 3 to meet the testing requirements of the sample from -160℃ to 600℃, and the adjustment is convenient. The optical equipment lens is observed by the transparent observation part, and the heat radiation is isolated by the upper cover 2 to protect the optical equipment lens and extend its service life.

[0040] Specifically, a sealing gasket 17 is installed on the mating surface of the top of the box body 1 and the upper cover 2. After the upper cover 2 is closed, the box body 1 forms a closed chamber. The battery sample is placed on the sample stage 3. The temperature of the sample stage 3 is changed by the heating unit or the cooling unit. The sample stage 3 conducts the temperature to the sample. The temperature sensor 16 can detect the temperature of the sample stage 3 in real time and the temperature is controlled by an external controller for testing.

[0041] In addition, an atmosphere inlet connector 19 is provided on the outer wall of the box body 1. One end of the atmosphere inlet connector 19 is connected to the inside of the box body 1. The atmosphere inlet connector 19 can inject various gases into the box body 1 to assist in the test according to the needs of battery sample testing.

[0042] Example 2

[0043] like Figure 1 As shown, preferably, based on Embodiment 1, the heating unit includes a heating rod 4, which is inserted into the sample stage 3.

[0044] The advantages of using the preferred solution in the above embodiments are: simple heating structure and high heating efficiency.

[0045] Specifically, the side wall of the box 1 has an installation hole. The heating rod 4 passes through the installation hole and is inserted into the sample stage 3. When conducting high-temperature testing, the heating rod 4 heats up and conducts the temperature to the sample stage 3, and then to the sample.

[0046] Example 3

[0047] like Figure 1 , Figure 4 and Figure 5As shown, preferably, based on embodiments 1-2, the refrigeration unit includes a U-shaped pipe 5 located inside the sample stage 3. The top surface of the sample stage 3 is provided with a sample placement hole 6. The U-shaped pipe 5 is located below the sample placement hole 6. Both ends of the U-shaped pipe 5 are connected to a refrigeration pipe 7. The end of the refrigeration pipe 7 away from the sample stage 3 passes through the side wall of the box body 1 and is connected to an external cold source.

[0048] The advantages of the preferred scheme in the above embodiments are: the cold source is circulated through the U-shaped pipe 5, the low temperature effect is stably controlled, and it is easy to test.

[0049] Specifically, during the low-temperature test, the battery sample is placed in a crucible, and then the crucible is placed on the sample placement hole 6. Liquid nitrogen is poured into the cooling pipe 7, and the liquid nitrogen flows out from the other end after circulating through the U-shaped pipe 5. The low temperature is conducted to the battery sample through the sample stage 3 for testing.

[0050] The specific U-shaped pipe 5 and heating rod 4 can be adjusted to the upper and lower positions as needed.

[0051] Example 4

[0052] like Figures 1 to 2 As shown, preferably, based on embodiments 1-3, the transparent observation part includes a lens 8 and an annular knob 9, an observation window is provided on the upper cover 2, the lens 8 is placed inside the observation window, and the annular knob 9 is covered above the lens 8 and threadedly connected to the inner wall of the observation window.

[0053] The advantages of the preferred solution in the above embodiments are: the transparent lens 8 facilitates the observation of the sample, and the lens 8 can be replaced at any time, making it convenient to use.

[0054] Specifically, in this embodiment, an annular platform is provided inside the observation window, and a sealing ring is installed at the bottom of the annular platform. The lens 8 is placed inside the observation window and pressed on the sealing ring. The annular knob 9 is pressed on the lens 8, and then the seal is achieved by tightening the threaded connection.

[0055] Example 5

[0056] like Figures 2 to 3 As shown, preferably, based on embodiments 1-4, a first circulating water pipe 10 is provided inside the upper cover 2. The first circulating water pipe 10 surrounds the observation window, and both ends of the first circulating water pipe 10 extend out of the side wall of the upper cover 2 and are provided with a first connector 11.

[0057] Preferably, the first circulating water pipe 10 is Ω-shaped.

[0058] Specifically, in this embodiment, the first connector 11 is connected to an external water source, and the first circulating water pipe 10 is arranged around the observation window. The circulating water cools the upper cover 2 and the lens 8, preventing the upper cover 2 from overheating and affecting the lens of the optical equipment.

[0059] Based on this embodiment, in actual use, the circulating water can also be hot water, which will heat up the upper cover 2 when the temperature is too low to ensure temperature stability.

[0060] Example 6

[0061] like Figure 1 As shown, preferably, based on embodiments 1-5, a circulating water pipe is provided on the inner side of the bottom of the box body 1, and both ends of the circulating water pipe extend out of the side wall of the box body 1 and are provided with a second connector 12.

[0062] The beneficial effect of adopting the preferred solution in the above embodiments is that the second connector 12 is connected to external circulating water, and the circulating water cools the box 1, thus preventing the box 1 from overheating.

[0063] Based on this embodiment, in actual use, the circulating water can also be hot water, which can heat up the box 1 when the temperature is too low to ensure temperature stability.

[0064] Example 7

[0065] like Figure 6 As shown, preferably, based on embodiments 1-6, a refrigeration mounting plate 13 is also fixedly provided on the outer wall of the box body 1, and a refrigeration sealing plate 14 is fixedly installed on the refrigeration mounting plate 13. The refrigeration pipe 7 passes through the side wall of the box body 1, the refrigeration mounting plate 13 and the refrigeration sealing plate 14 in sequence and is connected to an external cold source.

[0066] The beneficial effect of adopting the preferred solution in the above embodiments is that it is used to fix the refrigeration pipe 7 and seal the gap between the refrigeration pipe 7 and the box body 1.

[0067] Specifically, in this embodiment, the refrigeration mounting plate 13 is fixedly mounted on the outer wall of the box body 1 by screws, and the refrigeration sealing plate 14 is connected to the refrigeration mounting plate 13 by screws. The refrigeration mounting plate 13 and the refrigeration sealing plate 14 are provided with through holes for the refrigeration pipe 7 to pass through. The edge of the through hole on the side of the refrigeration sealing plate 14 facing the refrigeration mounting plate 13 is beveled at 45° and an O-ring seal 18 is installed to achieve the sealing between the refrigeration mounting plate 13 and the refrigeration sealing plate 14, as well as the sealing between the refrigeration pipe 7 and the through hole.

[0068] In addition, a sealing gasket is also installed between the refrigeration mounting plate 13 and the box body 1.

[0069] Example 8

[0070] like Figure 1As shown, preferably, based on embodiments 1-7, a sample stage support 15 is fixedly provided on the bottom surface of the sample stage 3, and the sample stage support 15 is fixedly connected to the inner bottom surface of the box body 1.

[0071] Preferably, the sample stage support 15 is made of zirconia ceramic.

[0072] Specifically, in this embodiment, the sample stage support 15 separates the sample stage 3 from the box body 1 to prevent the temperature from being conducted from the sample stage 3 to the box body 1. Zirconia ceramic has high toughness, high bending strength and excellent thermal insulation properties, which can better isolate the temperature.

[0073] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0074] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0075] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0076] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A battery testing device, characterized in that, It includes a box (1) with an open top, a top cover (2) covering the top of the box (1), a sample stage (3) fixed inside the box (1), and a transparent observation part on the top cover (2); A temperature sensor (16) is provided on the sample stage (3). A heating unit for heating the sample stage (3) is provided on one side of the sample stage (3), and a cooling unit for cooling the sample stage (3) is provided on the other side.

2. The battery testing device according to claim 1, characterized in that, The heating unit includes a heating rod (4), which is inserted into the sample stage (3).

3. The battery testing device according to claim 2, characterized in that, The refrigeration unit includes a U-shaped pipe (5) located inside the sample stage (3). The top surface of the sample stage (3) is provided with a sample placement hole (6). The U-shaped pipe (5) is located below the sample placement hole (6). Both ends of the U-shaped pipe (5) are connected to a refrigeration pipe (7). The end of the refrigeration pipe (7) away from the sample stage (3) passes through the side wall of the box body (1) and is connected to an external cold source.

4. The battery testing device according to claim 1, characterized in that, The transparent observation section includes a lens (8) and an annular knob (9). An observation window is provided on the upper cover (2). The lens (8) is placed inside the observation window. The annular knob (9) is placed on top of the lens (8) and threadedly connected to the inner wall of the observation window.

5. A battery testing device according to claim 4, characterized in that, The upper cover (2) has a first circulating water pipe (10) inside. The first circulating water pipe (10) surrounds the observation window. Both ends of the first circulating water pipe (10) extend out of the side wall of the upper cover (2) and are provided with a first connector (11).

6. The battery testing device according to claim 5, characterized in that, The first circulating water pipe (10) is Ω-shaped.

7. The battery testing device according to claim 1, characterized in that, A circulating water pipe is provided on the inner side of the bottom of the box (1), and both ends of the circulating water pipe extend out of the side wall of the box (1) and are provided with a second connector (12).

8. A battery testing device according to claim 3, characterized in that, A refrigeration mounting plate (13) is fixedly installed on the outer side wall of the box (1), and a refrigeration sealing plate (14) is fixedly installed on the refrigeration mounting plate (13). The refrigeration pipe (7) passes through the side wall of the box (1), the refrigeration mounting plate (13) and the refrigeration sealing plate (14) in sequence and is connected to an external cold source.

9. A battery testing apparatus according to any one of claims 1 to 8, characterized in that, The sample stage (3) is fixedly provided with a sample stage bracket (15) on its bottom surface, and the sample stage bracket (15) is fixedly connected to the bottom surface of the inner side of the box (1).

10. A battery testing device according to claim 9, characterized in that, The sample stage support (15) is made of zirconia ceramic.

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