Battery temperature measuring device

Abstract

The utility model belongs to the technical field of lithium batteries, and discloses a battery temperature measuring device, which comprises a water bath, a battery and a protective cover, the battery is arranged in the water bath; the protective cover comprises a pressing part and an adsorption part annularly arranged on the pressing part; the adsorption part is adsorbed and fixed on the side wall of the battery, the adsorption part, the pressing part and the side wall of the battery form a first accommodating cavity, and a temperature sensor is accommodated in the first accommodating cavity. According to the utility model, the protective cover comprises the pressing part and the adsorption part annularly arranged on the pressing part, and after the adsorption part is adsorbed and fixed on the side wall of the battery, the adsorption part, the pressing part and the side wall of the battery form the first accommodating cavity; and then the temperature sensor is accommodated in the first accommodating cavity to measure the temperature of the battery, so that the influence of the water temperature in the water bath on a battery temperature measurement result is isolated, the accuracy of the battery temperature measurement result is improved, and the battery temperature measurement device is simple in structure and convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium batteries and relates to a battery temperature measurement device. Background Art

[0002] Under the dual pressures of energy crisis and environmental pollution, the electrification of automotive power systems has gradually become the mainstream of future automotive technology development. One of the main characteristics of the electrification of automotive power systems is the use of power batteries as the main energy supply source for automobiles.

[0003] During the use and storage of lithium-ion power batteries, temperature has an important impact on the performance, life, and safety of the batteries. First of all, the temperature of lithium-ion batteries affects their energy and power performance. At present, for battery temperature acquisition, in order to improve the accuracy of battery temperature acquisition data, when collecting the temperature of the large surface of the battery, a general solution is to use Teflon as the diaphragm material to isolate water and air. The temperature sensor is attached to the large surface of the battery to collect data, but this acquisition method is affected by the water temperature in the water bath, resulting in inaccurate battery temperature acquisition. Therefore, the battery temperature data acquisition must be redesigned.

[0004] Based on this, there is an urgent need in this field for a battery temperature measurement device to solve the above technical problems. Summary of the Utility Model

[0005] In view of this, the purpose of the utility model is to solve the above problems and provide a battery temperature measurement device.

[0006] To solve the above technical problems, the utility model provides a battery temperature measurement device, which includes a water bath, a battery, and a protective cover;

[0007] The battery is arranged inside the water bath;

[0008] The protective cover includes a pressing part and an adsorption part surrounding the pressing part;

[0009] The adsorption part is adsorbed and fixed on the side wall of the battery, and the adsorption part, the pressing part, and the side wall of the battery form a first accommodation cavity, and a temperature sensor is accommodated in the first accommodation cavity.

[0010] As a further improvement of the utility model, the adsorption part is made of a flexible material, and pressing the pressing part discharges the gas in the first accommodation cavity so that the adsorption part is adsorbed and fixed on the side wall of the battery.

[0011] As a further improvement of the utility model, a sealing part is connected to one end of the adsorption part away from the pressing part, and the sealing part includes annular sealing rings arranged at intervals.

[0012] As a further improvement of the present utility model, a waterproof glue is provided at the connection between the adsorption part and the side wall of the battery.

[0013] As a further improvement of the present utility model, a second accommodation cavity is provided in the first accommodation cavity. An opening is provided on the side wall of the second accommodation cavity close to the battery, and the cavity wall of the second accommodation cavity is integrally formed with the protective cover.

[0014] As a further improvement of the present utility model, the temperature sensor is accommodated in the second accommodation cavity, and the sensing end of the temperature sensor faces the side wall of the battery through the opening.

[0015] As a further improvement of the present utility model, the temperature sensor is connected with a collection wire, and the collection wire penetrates through the protective cover and is connected to an external device.

[0016] As a further improvement of the present utility model, the water bath tank includes a bottom plate and a tank wall disposed around the periphery of the bottom plate. A warm water inlet pipe and a warm water outlet pipe are provided on the tank wall, and the warm water outlet pipe is disposed close to the bottom plate.

[0017] As a further improvement of the present utility model, a cold water inlet pipe and a cold water outlet pipe are provided on the tank wall, and the cold water outlet pipe is disposed close to the bottom plate.

[0018] As a further improvement of the present utility model, electrode columns are provided on the top of the battery, and the battery is connected to an external charging and discharging cabinet through the electrode columns.

[0019] The technical effect of the present utility model is: Compared with the prior art, a battery temperature measuring device provided by the present utility model forms a first accommodation cavity by the adsorption part, the pressing part and the side wall of the battery after the adsorption part adsorbs and fixes on the side wall of the battery by providing the protective cover including a pressing part and an adsorption part disposed around the pressing part, and then the temperature sensor is accommodated in the first accommodation cavity to measure the battery temperature, isolating the influence of the water temperature in the water bath tank on the battery temperature measurement result, improving the accuracy of the battery temperature measurement result, with a simple structure and convenient use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only a part of the embodiments of the present utility model, rather than all of the embodiments. For those of ordinary skill in the art, without creative efforts, other drawings obtained based on these drawings all fall within the protection scope of the present utility model.

[0021] Figure 1It is a perspective view of a battery temperature measurement device provided by an embodiment of the present utility model;

[0022] Figure 2 It is an internal view of a battery temperature measurement device provided by an embodiment of the present utility model;

[0023] Figure 3 It is a perspective view of a protective cover provided by an embodiment of the present utility model.

[0024] Among them, 10 is a water bath tank, 11 is a bottom plate, 12 is a tank wall, 121 is a warm water inlet pipe, 122 is a warm water outlet pipe, 123 is a cold water inlet pipe, 124 is a cold water outlet pipe, 20 is a battery, 21 is an electrode post, 30 is a protective cover, 31 is a pressing part, 32 is an adsorption part, 321 is a sealing part, 3211 is an annular sealing ring, 322 is a waterproof glue, 33 is a first accommodation cavity, 331 is a second accommodation cavity, 3311 is an opening, 40 is a temperature sensor, and 41 is a collection wire. Detailed implementation manners

[0025] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0026] In order to make the description of the present disclosure more detailed and complete, the following provides an illustrative description of the implementation manners and specific embodiments of the present utility model; however, this is not the only form for implementing or applying the specific embodiments of the present utility model. The implementation manners cover the features of multiple specific embodiments and the method steps and their sequences for constructing and operating these specific embodiments. However, other specific embodiments can also be used to achieve the same or equivalent functions and step sequences. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0028] It should be understood that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present utility model are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present utility model described here can be implemented in an order other than those illustrated or described here.

[0029] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "front", "rear", "top", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does 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 of the present utility model.

[0030] Please refer to Figures 1-3 , an embodiment of the present utility model provides a battery temperature measurement device to solve the problem that the existing acquisition method is affected by the water temperature in the water bath, resulting in inaccurate measurement of the battery temperature.

[0031] Specifically, please refer to Figure 1 which is a perspective view of a battery temperature measurement device provided by an embodiment of the present utility model. The present utility model provides a battery temperature measurement device, including a water bath 10, a battery 20 and a protective cover 30. When in use, a temperature sensor 40 is placed in the protective cover 30 to measure the temperature of the battery 20, avoiding the influence of the water temperature in the water bath 10 on the measurement result of the battery 20 temperature, and improving the reliability of the battery temperature measurement device.

[0032] Specifically, please refer to Figure 2 , the battery 20 is arranged inside the water bath 10; the protective cover 30 includes a pressing part 31 and an adsorption part 32 surrounding the pressing part 31; the pressing part 31 is used for pressing. Pressing the pressing part 31 to expel the air in the pressing part 31 and the adsorption part 32, and the adsorption part 32 is adsorbed and fixed on the side wall of the battery 20. The adsorption part 32, the pressing part 31 and the side wall of the battery 20 form a first accommodation cavity 33, and a temperature sensor 40 is accommodated in the first accommodation cavity 33. Placing the temperature sensor 40 in the first accommodation cavity 33 not only avoids the influence of the temperature sensor 40 getting water on the measurement result, but also isolates the influence of the water temperature in the water bath 10 on the measurement of the temperature sensor 40, improving the accuracy of the temperature sensor 40 measurement.

[0033] A battery temperature measurement device provided by the present utility model, by setting the protective cover 30 to include a pressing part 31 and an adsorption part 32 surrounding the pressing part 31. After the adsorption part 32 is adsorbed and fixed on the side wall of the battery 20, the adsorption part 32, the pressing part 31 and the side wall of the battery 20 form a first accommodating cavity 33. Then, the temperature sensor 40 is placed in the first accommodating cavity 33 to measure the temperature of the battery 20, isolating the influence of the water temperature in the water bath 10 on the temperature measurement result of the battery 20, improving the accuracy of the temperature measurement result of the battery 20, with a simple structure and convenient use.

[0034] As a further improvement of the present utility model, the adsorption part 32 is made of a flexible material. Press the pressing part 31 to discharge the gas in the first accommodating cavity 33 so that the adsorption part 32 is adsorbed and fixed on the side wall of the battery 20. Optionally, the flexible material is silica gel or rubber. By setting the adsorption part 32 to be made of a flexible material, the connection tightness between the adsorption part 32 and the side wall of the battery 20 is improved, ensuring that the first accommodating cavity 33 formed by the adsorption part 32, the pressing part 31 and the side wall of the battery 20 has good airtightness and improving the heat insulation effect of the first accommodating cavity 33. Of course, the pressing part 31 and the adsorption part 32 can be made of an integral flexible material structure to ensure the firm connection between the pressing part 31 and the adsorption part 32, improving the airtightness of the first accommodating cavity 33, realizing the enhancement of the stability and durability of the overall structure of the pressing part 31 and the adsorption part 32, and enhancing the service life of the battery temperature measurement device.

[0035] As a further improvement of the present utility model, a sealing part 321 is connected to one end of the adsorption part 32 away from the pressing part 31, and the sealing part 321 includes annular sealing rings 3211 arranged at intervals. By connecting and setting the sealing part 321 at one end of the adsorption part 32 away from the pressing part 31, the adsorption and sealing effect of the adsorption part 32 is further improved. The sealing part 321 includes annular sealing rings 3211 arranged at intervals, so that there can be a slight interval between each sealing ring. When the adsorption part 32 adsorbs, each annular sealing ring 3211 can play an independent role, increasing the overall sealing effect of the sealing part 321.

[0036] As a further improvement of the present utility model, a waterproof glue 322 is provided at the connection between the adsorption part 32 and the side wall of the battery 20. By setting the waterproof glue 322 at the connection between the adsorption part 32 and the side wall of the battery 20, it is prevented from leaking into the first accommodating cavity 33, further improving the sealing effect of the first accommodating cavity 33.

[0037] It should be noted that the sealing part 321 and the waterproof glue 322 can be provided separately or simultaneously. When provided simultaneously, at the connection between the adsorption part 32 and the side wall of the battery 20, the waterproof glue 322 is provided, and the connection between the adsorption part 32 and the side wall of the battery 20 is the connection between the sealing part 321 and the side wall of the battery 20. Setting the sealing part 321 and the waterproof glue 322 simultaneously can further enhance the sealing effect of the first accommodation cavity 33.

[0038] As a further improvement of the present utility model, please refer to Figure 3 , a second accommodation cavity 331 is provided in the first accommodation cavity 33. An opening 3311 is provided on the side wall of the second accommodation cavity 331 close to the battery 20. The cavity wall of the second accommodation cavity 331 is integrally formed with the protective cover 30. The temperature sensor 40 is accommodated in the second accommodation cavity 331. The sensing end of the temperature sensor 40 faces the side wall of the battery 20 through the opening 3311. By providing the second accommodation cavity 331 in the first accommodation cavity 33 and accommodating the temperature sensor 40 in the second accommodation cavity 331, an isolation layer is formed between the first accommodation cavity 33 and the second accommodation cavity 331, preventing the water in the water bath 10 from contacting the temperature sensor 40, further isolating the water temperature, and improving the measurement accuracy of the temperature sensor 40. By providing the opening 3311 on the side wall of the second accommodation cavity 331 close to the battery 20 and the sensing end of the temperature sensor 40 facing the side wall of the battery 20 through the opening 3311, the measurement accuracy of the temperature of the battery 20 by the temperature sensor 40 is further improved. By setting the cavity wall of the second accommodation cavity 331 to be integrally formed with the protective cover 30, the connection between the cavity wall of the second accommodation cavity 331 and the protective cover 30 is ensured to be firm.

[0039] As a further improvement of the present utility model, the temperature sensor 40 is connected with a collection wire 41. The collection wire 41 passes through the protective cover 30 and is connected to an external device (not shown in the figure). By setting the temperature sensor 40 to be connected with the collection wire 41 and the collection wire 41 passing through the protective cover 30 and being connected to the external device, the temperature data collected by the temperature sensor 40 is transmitted to the external device, facilitating the conduction and collection of the temperature data of the battery 20.

[0040] As a further improvement of the present utility model, the water bath tank 10 includes a bottom plate 11 and a tank wall 12 disposed around the periphery of the bottom plate 11. A warm water inlet pipe 121 and a warm water outlet pipe 122 are provided on the tank wall 12. The warm water outlet pipe 122 is disposed close to the bottom plate 11. A cold water inlet pipe 123 and a cold water outlet pipe 124 are provided on the tank wall 12. The cold water outlet pipe 124 is disposed close to the bottom plate 11. By providing the warm water inlet pipe 121, the warm water outlet pipe 122, the cold water inlet pipe 123 and the cold water outlet pipe 124 on the tank wall 12, the temperature of the water bath tank 10 can be regulated. By disposing the warm water outlet pipe 122 and the cold water outlet pipe 124 close to the bottom plate 11, the water outlet rate can be increased, and the temperature adjustment efficiency of the water bath tank 10 can be improved.

[0041] As a further improvement of the present utility model, an electrode post 21 is provided on the top of the battery 20. The battery 20 is connected to an external charge and discharge cabinet (not shown in the figure) through the electrode post 21. By providing the electrode post 21 on the top of the battery 20 and connecting the battery 20 to the external charge and discharge cabinet through the electrode post 21, the charging and discharging of the battery 20 are realized, and the measurement scenario of the battery temperature measuring device is expanded.

[0042] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0043] The above embodiments only represent the preferred embodiments of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A battery temperature measuring device, characterized in that: Includes water bath, battery and protective cover; The battery is disposed inside the water bath; The protective cover comprises a pressing portion and an adsorption portion arranged around the pressing portion; The adsorption portion is adsorbed and fixed on the side wall of the battery. The adsorption portion, the pressing portion and the side wall of the battery form a first accommodating cavity. A temperature sensor is accommodated in the first accommodating cavity.

2. The battery temperature measuring device according to claim 1, characterized in that: The adsorption portion is made of a flexible material, and the pressing portion is pressed to discharge the gas in the first accommodating cavity so that the adsorption portion is adsorbed and fixed on the side wall of the battery.

3. The battery temperature measuring device according to claim 2, characterized in that: The adsorption portion is connected to a sealing portion at one end away from the pressing portion, and the sealing portion includes an annular sealing ring arranged at intervals.

4. The battery temperature measuring device according to claim 2, characterized in that: A waterproof glue is provided at the connection between the adsorption part and the side wall of the battery.

5. The battery temperature measuring device according to claim 1, characterized in that: A second accommodating cavity is provided in the first accommodating cavity, an opening is provided on a side wall of the second accommodating cavity close to the battery, and a cavity wall of the second accommodating cavity is integrally formed with the protective cover.

6. The battery temperature measuring device according to claim 5, characterized in that: The temperature sensor is accommodated in the second accommodating cavity, and a sensing end of the temperature sensor is directed toward the side wall of the battery through the opening.

7. The battery temperature measuring device according to claim 1, characterized in that: The temperature sensor is connected with a collection line, and the collection line passes through the protective cover to connect with an external device.

8. The battery temperature measuring device according to claim 1, characterized in that: The water bath comprises a bottom plate and a groove wall arranged around the bottom plate. A warm water inlet pipe and a warm water outlet pipe are arranged on the groove wall. The warm water outlet pipe is arranged close to the bottom plate.

9. The battery temperature measuring device according to claim 8, characterized in that: A cold water inlet pipe and a cold water outlet pipe are arranged on the groove wall, and the cold water outlet pipe is arranged close to the bottom plate.

10. The battery temperature measuring device according to claim 1, characterized in that: An electrode column is arranged on the top of the battery, and the battery is connected to an external charging and discharging cabinet through the electrode column.

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