CN219203313U

CN219203313U - Battery cover plate, power battery and automobile

Info

Publication number: CN219203313U
Application number: CN202223550093.4U
Authority: CN
Inventors: 候占瑞
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-16
Anticipated expiration: 2032-12-28

Abstract

The utility model provides a battery cover plate, a power battery and an automobile, wherein the battery cover plate comprises a cover plate with an installation groove penetrating through the thickness direction of the cover plate, a sensing device and a sealing element, wherein the sensing device and the sealing element are arranged in the installation groove, the sealing element is arranged above the sensing device in the thickness direction of the cover plate, the sensing device is provided with an information processing part arranged in the installation groove, and an induction part which is arranged below the information processing part and can detect the internal temperature change of the battery, and the information processing part wirelessly transmits a processed detection signal to external display equipment. According to the battery cover plate, the sensing device is integrated on the battery cover plate in an internal implantation mode, the sealing piece is arranged on the top of the mounting groove in a sealing mode, and the processed detection signals are transmitted to the external display equipment in a wireless mode, so that real-time detection of the internal temperature of the battery can be achieved, and meanwhile sealing performance of the cover plate and the battery can be guaranteed.

Description

Battery cover plate, power battery and automobile

Technical Field

The utility model relates to the technical field of power batteries, in particular to a battery cover plate. Meanwhile, the utility model also relates to a power battery provided with the battery cover plate and an automobile provided with the power battery.

Background

Among the many types of faults in the battery, lithium ion battery thermal faults are one of the most dominant faults in the operation of the energy storage system. The battery thermal failure can cause the problems of swelling, leakage, even fire and the like caused by the thermal runaway of the energy storage system, and the high-efficiency and safe application of the battery is seriously affected. Therefore, efficient condition monitoring and fault diagnosis algorithms are critical to avoiding and mitigating catastrophic battery failure.

In the prior art, for better detection of the temperature in the battery cell, a temperature sensing device is installed in the battery or on the shell, so as to detect the temperature in the battery, and the detected temperature is transmitted and fed back to an external terminal. However, the existing temperature sensing device is limited by the connection form between the temperature sensing device and an external terminal and the mounting structure of the temperature sensing device, so that the overall sealing performance of the battery core is often adversely affected, the risk of electrolyte leakage is greatly increased, and the normal use of the battery is affected.

Disclosure of Invention

In view of the foregoing, the present utility model is directed to a battery cover plate, so as to detect the internal temperature of a battery and provide the battery with good sealing performance.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a battery cover plate, which comprises a cover plate with a mounting groove penetrating through the thickness direction of the cover plate, a sensing device and a sealing piece, wherein the sensing device and the sealing piece are arranged in the mounting groove, and the sealing piece is positioned above the sensing device and is used for sealing the top of the mounting groove in the thickness direction of the cover plate;

the sensing device is provided with an information processing part positioned in the mounting groove and a sensing part which is arranged below the information processing part and can detect the internal temperature change of the battery, and the information processing part is used for receiving and processing the detection signal of the sensing part and wirelessly transmitting the processed detection signal to external display equipment.

Further, the cover plate comprises a cover plate body with a through hole and a plastic part arranged at the bottom of the cover plate body, wherein the plastic part is provided with an installation groove which is arranged corresponding to the through hole, and the installation groove is formed by downwards sinking the top of the plastic part along the thickness direction of the cover plate; the mounting groove is formed in an area surrounded by the through hole and the mounting groove, the sealing piece is arranged in the through hole, and the sensing device is arranged in the mounting groove.

Further, the bottom of the mounting groove is provided with a communication hole communicated with the inside of the battery, the information processing part is positioned in the mounting groove, and the sensing part is positioned in the communication hole.

Further, the seal is injection molded into the through hole.

Further, the sensing part is connected with the information processing part through a connecting piece.

Further, the connecting piece is a connecting piece or a connecting wire.

Further, the sensing part includes one of a temperature sensor, a gas pressure sensor, and a gas sensor.

Further, the information processing part comprises an information processing unit and a wireless transmission unit, wherein the information processing unit is used for receiving and processing the detection signal of the sensing part, and the wireless transmission unit is used for transmitting the processed detection signal to the external display device.

Compared with the prior art, the utility model has the following advantages:

according to the battery cover plate, the sensing device is integrated on the battery cover plate in an internal implantation mode, the sealing piece is arranged on the top of the mounting groove in a sealing mode, and the processed detection signals are transmitted to the external display equipment in a wireless mode, so that real-time detection of the internal temperature of the battery can be achieved, and meanwhile sealing performance of the cover plate and the battery can be guaranteed.

In addition, the mounting groove is formed in the area surrounded by the through hole and the mounting groove, the sealing element is arranged in the through hole, and the sensing device is arranged in the mounting groove, so that the mounting is convenient when the structure is simple, and the through hole is arranged, so that the detection signal can be transmitted outwards in a wireless way.

In addition, through being provided with the intercommunicating pore, be convenient for make the better acquisition of the inside temperature signal of battery of sensing part.

Another object of the present utility model is to propose a power battery comprising a battery cover as described above.

The power battery disclosed by the utility model is beneficial to improving the safety performance of the power battery by the battery cover plate.

A further object of the utility model is to propose an automobile comprising a power battery as described above.

According to the automobile, the power battery is arranged, so that the safety performance of the automobile is improved, and the satisfaction degree of a customer automobile is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 is a schematic view illustrating an internal structure of a battery cover plate according to an embodiment of the present utility model;

FIG. 2 is a top view of a battery cover plate according to an embodiment of the utility model;

fig. 3 is a front view of a battery cover plate according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a cover plate; 101. a cover plate body; 102. a plastic part; 1021. a mounting groove; 2. a sensing device; 201. an information processing unit; 202. an induction unit; 3. and a seal.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

The present embodiment relates to a battery cover plate, which is integrally constituted to include a cover plate 1 having a mounting groove penetrating through a thickness direction thereof, and a sensor device 2 and a sealing member 3 provided in the mounting groove, and the sealing member 3 is located above the sensor device 2 in the thickness direction of the cover plate 1 and is used for sealing a top portion of the mounting groove. The sensing device 2 has an information processing part 201 located in the mounting groove, and a sensing part 202 provided below the information processing part 201 and capable of detecting a change in the internal temperature of the battery, and the information processing part 201 is configured to receive and process a detection signal of the sensing part 202, and to wirelessly transmit the processed detection signal to an external display device.

Based on the above overall description, as a preferred embodiment, as shown in fig. 1 to 3, in this embodiment, the cover 1 includes a cover body 101 having a through hole, and a plastic part 102 disposed at the bottom of the cover body 101, where the plastic part 102 is provided with a mounting groove 1021 disposed corresponding to the through hole, and the mounting groove 1021 is formed by downwardly recessing the top of the plastic part 102 along the thickness direction of the cover 1. The mounting groove is formed in the area surrounded by the through hole and the mounting groove 1021, the sealing piece 3 is arranged in the through hole, and the sensing device 2 is arranged in the mounting groove 1021, so that the mounting is convenient when the structure is simple, and the through hole is arranged, so that the detection signal is wirelessly transmitted outwards.

It should be noted that, the external display device in this embodiment may be a vehicle-mounted terminal installed on an existing vehicle, and the detection signal is transmitted to the external display device, so as to facilitate observation of the detection data by related personnel.

As shown in fig. 1, the bottom of the mounting groove 1021 is provided with a communication hole communicating with the inside of the battery, the information processing portion 201 is located in the mounting groove 1021, and the sensing portion 202 is located in the communication hole, so that the sensing portion 202 can better acquire a temperature signal of the inside of the battery.

In addition, as a preferred embodiment, in the present example, the seal 3 is injection molded in the through hole. In specific implementation, the cover plate body 101 may be an optical aluminum plate commonly used in the prior art, after the through hole is punched on the cover plate body 101, and after the sensing device 2 is arranged in the mounting groove 1021, the through hole on the cover plate body 101 can be sealed in a nano injection molding manner, so as to achieve a better sealing effect.

In addition, it is preferable that the sensing unit 202 and the information processing unit 201 be connected by a connector in the specific implementation. It should be noted that the sensing portion 202 in the present embodiment may be one of a temperature sensor, a gas pressure sensor and a gas sensor commonly used in the prior art. While the information processing section 201 in the present embodiment may include an information processing unit for receiving and processing the detection signal of the sensing section 202, and a wireless transmission unit for transmitting the processed detection signal to an external display device. In particular, the information processing unit 201 may be a chip having a data processing function and a wireless transmission function, which are commonly used in the related art.

It should be noted that, as a preferred embodiment, the connection piece or the connection wire may be selected as the connection piece, and when the connection piece or the connection piece is implemented, the connection piece may be covered with an insulating material such as PVDF, which is resistant to electrolyte and high temperature, so as to prevent corrosion of the electrolyte and high temperature.

In addition, the sealing element 3 and the plastic element 102 in the embodiment can also be VPDF, so that better sealing performance is realized, and meanwhile, better high temperature resistance and electrolyte corrosion resistance are realized.

The battery cover plate of this embodiment is through adopting inside implanted mode to integrate sensing device 2 on the battery cover plate, and is provided with sealing member 3 and seals at the top of mounting groove to make the detection signal wireless transmission after handling to outside display device, then when can realizing carrying out real-time detection to the inside temperature of battery, can guarantee the sealing performance of apron and battery.

Example two

The present embodiment relates to a power battery including the battery cover plate of the first embodiment.

The power battery of the embodiment is beneficial to improving the safety performance of the power battery by the battery cover plate of the first embodiment.

Example III

The present embodiment relates to an automobile including the power battery in the second embodiment.

The automobile of the embodiment is beneficial to improving the safety performance of the automobile by being provided with the power battery of the second embodiment, so that the satisfaction degree of the customer automobile is improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A battery cover plate, characterized in that:

the device comprises a cover plate with a mounting groove penetrating through the thickness direction of the cover plate, a sensing device and a sealing piece, wherein the sensing device and the sealing piece are arranged in the mounting groove, and the sealing piece is positioned above the sensing device in the thickness direction of the cover plate and is used for sealing the top of the mounting groove;

2. The battery cover plate according to claim 1, wherein:

the cover plate comprises a cover plate body with a through hole and a plastic part arranged at the bottom of the cover plate body, wherein the plastic part is provided with an installation groove which is arranged corresponding to the through hole, and the installation groove is formed by downwards sinking the top of the plastic part along the thickness direction of the cover plate;

the mounting groove is formed in an area surrounded by the through hole and the mounting groove, the sealing piece is arranged in the through hole, and the sensing device is arranged in the mounting groove.

3. The battery cover plate according to claim 2, wherein:

the bottom of the mounting groove is provided with a communication hole communicated with the inside of the battery, the information processing part is positioned in the mounting groove, and the sensing part is positioned in the communication hole.

4. The battery cover plate according to claim 2, wherein:

the seal is injection molded into the through hole.

5. The battery cover plate according to claim 1, wherein:

the sensing part is connected with the information processing part through a connecting piece.

6. The battery cover plate of claim 5, wherein:

the connecting piece is a connecting piece or a connecting wire.

7. The battery cover plate according to any one of claims 1 to 6, wherein:

the sensing part includes one of a temperature sensor, a gas pressure sensor and a gas sensor.

8. The battery cover plate according to any one of claims 1 to 6, wherein:

the information processing part comprises an information processing unit and a wireless transmission unit, the information processing unit is used for receiving and processing the detection signal of the sensing part, and the wireless transmission unit is used for transmitting the processed detection signal to the external display device.

9. A power cell, characterized in that:

comprising a battery cover plate according to any one of claims 1 to 8.

10. An automobile, characterized in that:

comprising the power cell of claim 9.