CN220138409U

CN220138409U - Battery system and vehicle

Info

Publication number: CN220138409U
Application number: CN202321465549.9U
Authority: CN
Inventors: 唐泳聪; 张国祥; 陈河盛; 周红权
Original assignee: Eve Energy Co Ltd
Current assignee: Eve Energy Co Ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-12-05
Anticipated expiration: 2033-06-08

Abstract

The utility model provides a battery system and a vehicle, wherein the battery system comprises a battery shell, a detection assembly and an alarm assembly, a cover plate of the battery shell and a cooling plate are oppositely arranged, a first airtight space for installing a battery core is arranged between the cover plate and the cooling plate, a bottom plate of the battery shell and one side of the cooling plate, which is away from the cover plate, are oppositely arranged, and a second airtight space is arranged between the cooling plate and the bottom plate; the detection assembly comprises a first air pressure sensor for detecting a first air pressure value of the second closed space; the alarm assembly is connected with the first air pressure sensor and is used for outputting a first alarm signal when the first air pressure value is out of a first preset range value. According to the battery system provided by the utility model, the first air pressure value in the second closed space is detected through the first air pressure sensor, and the first alarm signal is output when the first air pressure value is out of the first preset range value, so that the problem that whether the bottom plate or the cooling plate is deformed or damaged cannot be accurately detected in the using process of the battery system can be solved.

Description

Battery system and vehicle

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery system and a vehicle.

Background

With the rapid development of new energy industry, the safety performance requirement on the battery system is higher and higher. The battery system's battery casing includes apron, cooling plate and bottom plate, and the apron is located the cooling plate top, and forms the space that is used for installing the electric core between apron and the cooling plate, and the cooling plate is used for cooling down the electric core, and the bottom plate is located the cooling plate below in order to protect the cooling plate, when battery system received the scraping in the in-process that battery system used, the problem that bottom plate or cooling plate damaged or warp probably can appear, and then causes incident such as short circuit, fire.

In the related art, in the process of using the battery system, it is impossible to accurately detect whether deformation or breakage of the bottom plate, the cooling plate or the cover plate of the battery system occurs.

Disclosure of Invention

The embodiment of the utility model provides a battery system and a vehicle, and aims to solve the problem that whether a bottom plate or a cooling plate is deformed or damaged cannot be accurately detected in the using process of the battery system.

In a first aspect, embodiments of the present utility model provide a battery system including:

the battery shell comprises a cover plate, a cooling plate and a bottom plate, wherein the cover plate and the cooling plate are oppositely arranged, a first airtight space for installing a battery core is arranged between the cover plate and the cooling plate, the bottom plate and one side, away from the cover plate, of the cooling plate are oppositely arranged, and a second airtight space is arranged between the cooling plate and the bottom plate;

the detection assembly comprises a first air pressure sensor, wherein the first air pressure sensor is used for detecting a first air pressure value of the second closed space;

and the alarm assembly is electrically connected with the first air pressure sensor and is used for outputting a first alarm signal when the first air pressure value is out of a first preset range value.

In some embodiments, the battery case includes a first pipe passing through the cooling plate or the bottom plate, one end of the first pipe communicating with the second airtight space, and the other end of the first pipe communicating with the first air pressure sensor.

In some embodiments, the battery case further includes a mounting frame, the cover plate and the cooling plate are respectively connected to opposite sides of the mounting frame, and the cover plate, the mounting frame and the cooling plate enclose the first enclosed space; the first pipeline passes through the mounting frame and the cooling plate, and part of the first pipeline is positioned in the first airtight space.

In some embodiments, the battery case includes a second pipe passing through an inner surface of the first closed space, one end of the second pipe communicating with the first closed space;

the battery system further comprises a second air pressure sensor electrically connected with the alarm assembly, wherein the second air pressure sensor is communicated with the other end of the second pipeline and is used for detecting a second air pressure value of the first closed space; the alarm component is used for outputting a second alarm signal when the second air pressure value is out of a second preset range value.

In some embodiments, the battery case further includes a mounting frame, the cover plate and the cooling plate are respectively connected to opposite sides of the mounting frame, and the cover plate, the mounting frame and the cooling plate enclose the first enclosed space; the second pipeline passes through the mounting frame.

In some embodiments, a conductive member is disposed in the battery case, and the detection assembly includes a resistance detection member electrically connected to the conductive member, the resistance detection member being configured to detect an insulation resistance value of the conductive member;

the alarm assembly is electrically connected with the resistance detection component and is used for outputting a third alarm signal when the insulation resistance value is out of a preset insulation resistance value range.

In some embodiments, the battery system includes a communication interface provided to the battery case, the communication interface being electrically connected to the conductive member, and the resistance detecting member being electrically connected to the communication interface.

In some embodiments, a cooling flow channel is arranged in the cooling plate; the detection assembly further comprises a flow resistance detection component for detecting a flow resistance value in the cooling flow channel;

the alarm assembly is electrically connected with the flow resistance detection component and is used for outputting a fourth alarm signal when the flow resistance value is out of a preset flow resistance value range.

In some embodiments, the cooling flow path includes an inlet and an outlet, the flow resistance detection component includes a first hydraulic sensor and a second hydraulic sensor electrically connected with the alarm assembly, respectively, the first hydraulic sensor is used for detecting a first hydraulic value at the inlet, the second hydraulic sensor is used for detecting a second hydraulic value at the outlet, and a difference between the first hydraulic value and the second hydraulic value is the flow resistance value.

In a second aspect, an embodiment of the present utility model provides a vehicle including a battery system as described above, the battery system including:

The embodiment of the utility model has the beneficial effects that:

in the embodiment of the utility model, the first air pressure value in the first closed space is detected by the first air pressure sensor, and the first alarm signal is output when the first air pressure value is out of the first preset range value, so that a user is accurately reminded of deformation or breakage of the bottom plate or the cooling plate of the battery shell, and the user can overhaul and maintain the battery shell in time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of an embodiment of a battery system according to an embodiment of the present utility model, in which a detection assembly and an alarm assembly are not shown;

FIG. 2 is an exploded view of one embodiment of a battery system according to an embodiment of the present utility model, wherein the detection assembly and alarm assembly are not shown;

FIG. 3 is a partial view of the cross-sectional view taken along the direction A-A in FIG. 1;

FIG. 4 is a partial view of the cross-sectional view taken along the direction B-B in FIG. 1;

fig. 5 is a block diagram of an embodiment of a battery system according to an embodiment of the present utility model.

A battery system 100; a battery case 110; a first enclosed space 1100; a second enclosed space 1101; a cover plate 111; a first seal 112; a mounting frame 113; a communication interface 1131; a second seal 114; a cooling plate 115; an inlet 1151; an outlet 1152; a third seal 116; a bottom plate 117; a first conduit 118; a first joint 1181; a connection tube 1182; a second connector 1183; a second line 119; a cell 120; a detection component 130; a first air pressure sensor 131; a second air pressure sensor 132; a resistance detection part 133; a flow resistance detecting member 134; an alarm assembly 140.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the utility model. In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.

Fig. 1 is a schematic structural diagram of an embodiment of a battery system according to an embodiment of the present utility model, in which a detection assembly and an alarm assembly are not shown. Fig. 2 is an exploded view of one embodiment of a battery system according to an embodiment of the present utility model, in which a detection assembly and an alarm assembly are not shown. As shown in fig. 1 and 2, the battery system 100 includes a battery case 110, and the battery case 110 includes a first sealed space 1100 for mounting the battery cells 120. The battery case 110 includes a cover 111 and a cooling plate 115, the cover 111 and the cooling plate 115 are disposed opposite to each other, and a first sealed space 1100 for mounting the battery cell 120 is provided between the cover 111 and the cooling plate 115. The cooling plate 115 is used for cooling the battery cell 120 in the first enclosed space 1100.

As shown in fig. 2 and 3, the battery case 110 further includes a mounting frame 113, and a cover plate 111 and a cooling plate 115 are respectively connected to opposite sides of the mounting frame 113, and the cover plate 111, the mounting frame 113 and the cooling plate 115 enclose to form a first enclosed space 1100. By connecting the mounting frame 113 between the cover plate 111 and the cooling plate 115, the structural strength of the battery case 110 can be improved, and the battery cells 120 in the first sealed space 1100 can be better protected.

Specifically, the mounting frame 113 is a rectangular frame. The peripheral edge of the cover plate 111 is connected with the edge of one side of the mounting frame 113, and the edge of the cooling plate 115 is connected with the edge of one side of the mounting frame 113 away from the cover plate 111, so that the cover plate 111, the mounting frame 113 and the cooling plate 115 enclose to form a first closed space 1100.

The first sealing member 112 is further disposed between the cover 111 and the mounting frame 113, so as to further improve the sealing effect between the cover 111 and the mounting frame 113. The first seal 112 is an annular structure provided along the circumferential direction of the mounting frame 113. A second sealing member 114 is further provided between the cooling plate 115 and the mounting frame 113 to further improve the sealing effect between the cooling plate 115 and the mounting frame 113. The second seal 114 is an annular structure provided along the circumferential direction of the mounting frame 113.

With continued reference to fig. 2 and 3, the battery case 110 further includes a bottom plate 117, the bottom plate 117 being disposed opposite to a side of the cooling plate 115 facing away from the bottom plate 117, with a second enclosed space 1101 between the cooling plate 115 and the bottom plate 117. Thus, the bottom plate 117 can protect the cooling plate 115 from deformation or even breakage after the cooling plate 115 is collided or pressed.

Wherein, the peripheral edge of the bottom plate 117 is connected with the peripheral edge of the cooling plate 115, so that the bottom plate 117 and the cooling plate 115 form a second enclosed space 1101. A third seal 116 is also provided between the cooling plate 115 and the bottom plate 117 to further enhance the sealing effect between the cooling plate 115 and the bottom plate 117. The third seal 116 is an annular structure provided along the circumferential direction of the bottom plate 117.

As shown in fig. 5, the battery system 100 further includes a detecting component 130 and an alarm component 140, where the detecting component 130 is configured to detect whether the battery case 110 is deformed or damaged, and the alarm component 140 is configured to output a corresponding alarm signal to remind a user after the detecting component 130 detects that the battery case 110 is deformed or damaged.

In some embodiments, the detection assembly 130 includes a first air pressure sensor 131, where the first air pressure sensor 131 is configured to detect a first air pressure value of the second enclosed space 1101. The alarm assembly 140 is electrically connected to the first air pressure sensor 131, and the alarm assembly 140 is configured to output a first alarm signal when the first air pressure value is outside a first preset range value.

It will be appreciated that, since the second enclosed space 1101 between the bottom plate 117 and the cooling plate 115 is in an enclosed environment, the first air pressure value in the second enclosed space 1101 will remain within a stable range of values, i.e., a first predetermined range of values. When the bottom plate 117 or the cooling plate 115 is deformed or broken, the first air pressure value in the second enclosed space 1101 is increased or decreased so as to be outside the first preset range.

Therefore, in the battery system 100 provided by the embodiment of the utility model, the first air pressure sensor 131 detects the first air pressure value in the second enclosed space 1101, and outputs the first alarm signal when the first air pressure value is outside the first preset range value, so as to remind the user that the bottom plate 117 or the cooling plate 115 of the battery housing 110 is deformed or damaged, so that the user can repair and maintain the battery housing 110 in time.

The first preset range value in the embodiment of the present utility model is a range value determined according to the detection of the second sealed space 1101 of the battery case 110, which is not limited herein.

The structures of the bottom plate 117 and the cooling plate 115, and the temperature in the second sealed space 1101 may affect the air pressure value in the second sealed space 1101, and the magnitude and the range of the first preset range value may also be different depending on the structure of the battery case 110, the temperature in the second sealed space 1101, and other factors affecting the air pressure. In addition, the first alarm signal output by the alarm assembly 140 may be an audio signal, a text signal, a light signal, etc., which is not limited herein.

In some embodiments, the first alarm signal output by alarm assembly 140 may include a first breakage signal. The first breakage signal is used to indicate breakage or rupture of the cooling plate 115 or the bottom plate 117. The alarm assembly 140 is configured to output a first breakage signal when the first air pressure value is lower than a first preset range value.

It is understood that when the cooling plate 115 or the bottom plate 117 of the battery case 110 is broken or ruptured, the gas in the second enclosed space 1101 leaks, thereby reducing the gas pressure in the second enclosed space 1101, and at this time, the first gas pressure value detected by the first gas pressure sensor 131 is lower than the first preset range value. That is, when the first air pressure value is lower than the first preset range value, indicating that the cooling plate 115 or the bottom plate 117 of the battery case 110 is damaged or broken, the alarm assembly 140 outputs a first damage signal to indicate to the user that the cooling plate 115 or the bottom plate 117 of the battery case 110 is damaged or broken.

In some embodiments, the first alarm signal output by alarm assembly 140 may include a first deformation signal. The first deformation signal is used to indicate that the cooling plate 115 or the bottom plate 117 is deformed. The alarm assembly 140 is configured to output a first deformation signal when the first air pressure value is higher than a first preset range value.

It is understood that when the cooling plate 115 or the bottom plate 117 of the battery case 110 is deformed, the gas in the second enclosed space 1101 is compressed, thereby increasing the gas pressure in the second enclosed space 1101, and at this time, the first gas pressure value detected by the first gas pressure sensor 131 is higher than the first preset range value. That is, when the first air pressure value is higher than the first preset range value, indicating that the cooling plate 115 or the bottom plate 117 of the battery case 110 is deformed, the alarm assembly 140 outputs a first deformation signal to indicate to the user that the cooling plate 115 or the bottom plate 117 of the battery case 110 is deformed.

It should be noted that, the first alarm signal output by the alarm assembly 140 may include both the first breakage signal and the first deformation signal, or may include only one of the first breakage signal and the first deformation signal. Of course, the first alarm signal output by the alarm assembly 140 may not be divided into the first breakage signal and the first deformation signal, but may be used only to indicate that the bottom plate 117 or the cooling plate 115 is damaged, and not specifically indicate the type of damage of the bottom plate 117 or the cooling plate 115.

In some embodiments, the alarm assembly 140 may include a controller (not shown) and an alarm (not shown), where the alarm and the first air pressure sensor 131 are respectively electrically connected to the controller, and the controller is configured to receive the first air pressure value detected by the first air pressure sensor 131, compare the first air pressure value with a first preset range value, and control the alarm to output a first alarm signal when the first air pressure value is outside the first preset range value.

Specifically, the controller compares the first air pressure value with a first preset range value, and when the first air pressure value is lower than the first preset range value, the controller controls the alarm to output a first damage signal; when the first air pressure value is higher than a first preset range value, the control alarm outputs a first deformation signal.

In some embodiments, as shown in fig. 2 and 4, the battery case 110 includes a first pipe 118 passing through the cooling plate 115 or the bottom plate 117, one end of the first pipe 118 communicating with the second closed space 1101, and the other end of the first pipe 118 communicating with the first air pressure sensor 131. Thus, the first air pressure sensor 131 can accurately detect the first air pressure value in the second sealed space 1101 through the first pipeline 118.

Wherein, the first pipeline 118 passes through the mounting frame 113 and the cooling plate 115, and a part of the first pipeline 118 is positioned in the first airtight space 1100, thereby facilitating the mounting of the first pipeline 118. Moreover, the risk of breakage of the first pipe 118 due to collision or crushing caused by the first pipe 118 passing through the bottom plate 117 can be avoided.

Specifically, the first conduit 118 includes a first joint 1181, a second joint 1183, and a connecting tube 1182, and the first joint 1181 and the second joint 1183 are respectively in communication with two ends of the connecting tube 1182. The connection tube 1182 is positioned in the first enclosed space 1100. The first joint 1181 communicates with the second enclosed space 1101 through the cooling plate 115. The second connector 1183 passes through the mounting frame 113 and communicates with the first air pressure sensor 131.

In other embodiments, the first air pressure sensor 131 may be directly disposed in the second enclosed space 1101, so that the first air pressure sensor 131 detects the first air pressure value in the second enclosed space 1101. The first air pressure sensor 131 may be electrically connected to the alarm assembly 140 by a wired or wireless means.

In some embodiments, as shown in fig. 3 and 5, the battery case 110 includes a second pipe 119 passing through an inner surface of the first enclosed space 1100, and one end of the second pipe 119 communicates with the first enclosed space 1100. The battery system 100 further includes a second air pressure sensor 132 electrically connected to the alarm assembly 140, and the second air pressure sensor 132 is in communication with the other end of the second pipe 119 and is used to detect a second air pressure value of the first enclosed space 1100. The alarm component 140 is configured to output a second alarm signal when the second air pressure value is outside a second preset range value.

It will be appreciated that, since the first enclosed space 1100 between the cover plate 111 and the cooling plate 115 is in an enclosed environment, the second air pressure value in the first enclosed space 1100 will be maintained within a stable range of values, i.e., a second preset range of values. When the cover plate 111 or the cooling plate 115 is deformed or broken, the second air pressure value in the first enclosed space 1100 is increased or decreased, and thus is out of the second preset range.

Therefore, in the battery system 100 provided by the embodiment of the utility model, the second air pressure sensor 132 detects the second air pressure value in the first enclosed space 1100, and outputs the second alarm signal when the second air pressure value is outside the second preset range value, so as to remind the user that the cover plate 111 or the cooling plate 115 of the battery housing 110 is deformed or damaged, so that the user can repair and maintain the battery housing 110 in time.

The second preset range value in the embodiment of the present utility model is a range value determined according to the detection of the first sealed space 1100 of the battery case 110, which is not limited herein.

Note that, the structures of the cover plate 111 and the cooling plate 115, and the factors such as the temperature of the first enclosed space 1100 affect the air pressure value in the first enclosed space 1100, and the magnitude and the range of the second preset range value may also be different according to the structure of the battery case 110, the temperature of the first enclosed space 1100, and other factors affecting the air pressure. In addition, the second alarm signal output by the alarm assembly 140 may be an audio signal, a text signal, a light signal, etc., which is not limited herein.

In some embodiments, the second alarm signal output by alarm assembly 140 may include a second breakage signal. The second breakage signal is used to indicate breakage or breakage of the cooling plate 115 or the cover plate 111. The alarm assembly 140 is configured to output a second breakage signal when the second air pressure value is lower than a second preset range value.

It is understood that when the cooling plate 115 or the cover plate 111 of the battery case 110 is broken or ruptured, the gas in the first airtight space 1100 leaks, thereby causing the air pressure in the first airtight space 1100 to decrease, and at this time, the second air pressure value detected by the second air pressure sensor 132 may be lower than the second preset range value. That is, when the second air pressure value is lower than the second preset range value, indicating that the cooling plate 115 or the cover plate 111 of the battery case 110 is damaged or broken, the alarm assembly 140 outputs a second damage signal to indicate to the user that the cooling plate 115 or the cover plate 111 of the battery case 110 is damaged or broken.

In some embodiments, the second alarm signal output by alarm assembly 140 may include a second deformation signal. The second deformation signal is used to indicate that the cooling plate 115 or the cover plate 111 is deformed. The alarm assembly 140 is configured to output a second deformation signal when the second air pressure value is higher than a second preset range value.

It will be appreciated that when the cooling plate 115 or the cover plate 111 of the battery case 110 is deformed, the gas in the first airtight space 1100 is compressed, thereby causing the gas pressure in the first airtight space 1100 to rise, and at this time, the second gas pressure value detected by the second gas pressure sensor 132 may be higher than the second preset range value. That is, when the second air pressure value is higher than the second preset range value, indicating that the cooling plate 115 or the cover plate 111 of the battery case 110 is deformed, the alarm assembly 140 outputs a second deformation signal to indicate to the user that the cooling plate 115 or the cover plate 111 of the battery case 110 is deformed.

The second alarm signal output by the alarm assembly 140 may include both the second breakage signal and the second deformation signal, or may include only one of the second breakage signal and the second deformation signal. Of course, the second alarm signal output by the alarm assembly 140 may not be divided into the second damage signal and the second deformation signal, but only be used to indicate that the cover plate 111 or the cooling plate 115 is damaged, and not specifically indicate the type of damage of the cover plate 111 or the cooling plate 115.

In some embodiments, the alarm assembly 140 may include a controller and an alarm, where the alarm and the second air pressure sensor 132 are respectively electrically connected to the controller, and the controller is configured to receive the second air pressure value detected by the second air pressure sensor 132, compare the second air pressure value with a second preset range value, and control the alarm to output a second alarm signal when the second air pressure value is outside the second preset range value.

Specifically, the controller compares the second air pressure value with a second preset range value, and when the second air pressure value is lower than the second preset range value, the controller controls the alarm to output a second breakage signal; and when the second air pressure value is higher than a second preset range value, controlling the alarm to output a second deformation signal.

As shown in fig. 3, the battery case 110 includes a mounting frame 113, and a cover 111 and a cooling plate 115 are respectively connected to opposite sides of the mounting frame 113, and the cover 111, the mounting frame 113 and the cooling plate 115 enclose to form a first enclosed space 1100. In some embodiments, the second conduit 119 passes through the mounting frame 113, thereby making the connection of the second conduit 119 with the battery case 110 more stable.

Specifically, the second duct 119 passes through the mounting frame 113 from the surface of the mounting frame 113 facing the first enclosed space 1100. One end of the second pipeline 119 is located in the first airtight space 1100, and the other end of the second pipeline 119 extends out of the outer surface of the mounting frame 113 and is communicated with the second air pressure sensor 132. Wherein the second conduit 119 and the second connector 1183 of the first conduit 118 are located on the same side of the mounting frame 113.

In some embodiments, a conductive member (not shown) is disposed in the battery case 110, and the sensing assembly 130 includes a resistance sensing member 133 (shown in fig. 5) electrically connected to the conductive member, and the resistance sensing member 133 is used to sense an insulation resistance value of the conductive member. The conductive component can be conductive structures such as a wire, a metal plate, a metal strip and the like. The conductive member may be provided on the cover plate 111, the cooling plate 115, the bottom plate 117, the mounting frame 113, or other members of the battery case 110, without limitation.

The alarm assembly 140 is electrically connected to the resistance detection component 133, and the alarm assembly 140 is configured to output a third alarm signal when the insulation resistance value is outside the preset insulation resistance value range.

It is understood that, under normal conditions, when the battery case 110 is not damaged or deformed, the structure of the conductive member provided in the battery case 110 is kept stable, and the insulation resistance is stabilized within a fixed value or range, which may be used as a preset insulation resistance range. When the battery case 110 is damaged or deformed, the conductive member provided in the battery case 110 is damaged or deformed, and the insulation resistance of the conductive member is changed, so that the insulation resistance of the conductive member is outside the preset insulation resistance range.

Therefore, the insulation resistance of the conductive member is detected by the resistance detecting member 133, and when the insulation resistance is out of the preset insulation resistance range, it is indicated that the battery case 110 is deformed or damaged, so that the third alarm signal is output by the alarm assembly 140, so that the user can repair and maintain the battery case 110 in time.

The third alarm signal output by the alarm component 140 may be an audio signal, a text signal, a light signal, etc., which is not limited herein.

In some embodiments, as shown in fig. 3, the battery system 100 includes a communication interface 1131 provided to the battery housing 110. The communication interface 1131 may be used to electrically connect to a controller of the battery system 100 or to electrically connect to the circuitry of the vehicle. Wherein, communication interface 1131 is electrically connected with the conductive member, and resistance detection member 133 is electrically connected with communication interface 1131, thereby conveniently electrically connecting resistance detection assembly 130 with the conductive member.

Further, since the number of conductive members electrically connected to the communication interface 1131 in the battery case 110 is large, the resistance detecting member 133 and the plurality of conductive members can be simultaneously connected by electrically connecting the resistance detecting member 133 to the communication interface 1131, and thus whether or not the battery case 110 is deformed or broken can be more accurately detected.

Specifically, a communication interface 1131 is provided on the outside of the mounting frame 113 facing away from the first enclosed space 1100. Wherein the number of communication interfaces 1131 is two. The two communication interfaces 1131 are located on the same side of the mounting frame 113, and the two communication interfaces 1131 are sequentially distributed along the circumferential direction of the mounting frame 113. The resistance detecting unit 133 may be electrically connected to both of the communication interfaces 1131, or may be electrically connected to only one of the communication interfaces 1131. Of course, the former can electrically connect the resistance detecting member 133 with more conductive members, thereby further improving the accuracy of the resistance detecting member 133 in detecting whether deformation or breakage of the battery case 110 occurs.

In some embodiments, a cooling channel (not shown) is disposed in the cooling plate 115, and a cooling liquid circulates in the cooling channel to take away heat of the cooling plate 115, so as to achieve the purpose of cooling the battery cell 120 by the cooling plate 115.

Wherein the detecting assembly 130 further comprises a flow resistance detecting member 134 (as shown in fig. 5), the flow resistance detecting member 134 for detecting a flow resistance value in the cooling flow passage. The alarm assembly 140 is electrically connected to the flow resistance detecting member 134, and the alarm assembly 140 is configured to output a fourth alarm signal when the flow resistance value is outside a preset flow resistance value range.

It will be appreciated that under normal conditions, when the cooling plate 115 is not damaged or deformed, the cooling flow channel structure provided in the cooling plate 115 is kept stable, and the flow resistance value is stabilized within a fixed value or range, and the fixed value or range may be used as a preset flow resistance value range. When the cooling plate 115 is damaged or deformed, the cooling flow passage provided in the cooling plate 115 is damaged or deformed, and the flow resistance value of the cooling flow passage is changed, so that the flow resistance value of the cooling flow passage is out of the preset flow resistance value range.

Therefore, the resistance detecting part 133 detects the flow resistance value of the cooling flow channel, and when the flow resistance value is out of the preset range of the flow resistance value, the cooling plate 115 is deformed or damaged, so that the alarm assembly 140 outputs a fourth alarm signal, thereby facilitating the user to repair and maintain the cooling plate 115 in time.

The fourth alarm signal output by the alarm component 140 may be an audio signal, a text signal, a light signal, etc., which is not limited herein.

In some embodiments, the fourth alarm signal output by alarm assembly 140 may include a third breakage signal. The third breakage signal is used for indicating that the cooling flow channel is broken or cracked. The alarm assembly 140 is configured to output a third breakage signal when the flow resistance value is lower than a preset flow resistance value range.

It is understood that when the cooling flow path of the battery case 110 is broken or ruptured, the cooling liquid in the cooling flow path may leak, resulting in a decrease in the hydraulic pressure in the cooling flow path, and at this time, the flow resistance value detected by the flow resistance detecting member 134 may be lower than the preset flow resistance value range. That is, when the flow resistance value is lower than the preset flow resistance value range, indicating that the cooling flow passage of the battery case 110 is broken or ruptured, the alarm assembly 140 outputs a third breakage signal to prompt the user that the cooling flow passage of the battery case 110 is broken or ruptured.

In some embodiments, the fourth alarm signal output by alarm assembly 140 may include a third deformation signal. The third deformation signal is used for prompting the cooling flow passage to deform. The alarm assembly 140 is configured to output a third deformation signal when the flow resistance value is higher than a preset flow resistance value range.

It is understood that when the cooling flow path of the battery case 110 is deformed, the flow resistance of the cooling flow path to the cooling liquid may be increased, thereby causing an increase in the flow resistance value in the cooling flow path, and at this time, the flow resistance value detected by the flow resistance detecting member 134 may be higher than a preset flow resistance value range. That is, when the flow resistance value is higher than the preset flow resistance value range, the cooling flow passage of the battery case 110 is illustrated to be deformed, and the alarm assembly 140 outputs a third deformation signal to prompt the user that the cooling flow passage of the battery case 110 is deformed.

The fourth alarm signal output by the alarm assembly 140 may include both the third breakage signal and the third deformation signal, or may include only one of the third breakage signal and the third deformation signal. Of course, the fourth alarm signal output by the alarm assembly 140 may also be used only to indicate the occurrence of damage to the cooling plate 115, and not specifically to indicate the type of damage to the cooling plate 115.

As shown in fig. 3, the cooling flow path includes an inlet 1151 and an outlet 1152. The cooling fluid enters the cooling flow channel from the inlet 1151 and exchanges heat with the cooling plate 115, and then the cooling fluid flows out of the outlet 1152, thereby taking away heat from the cooling plate 115 and reducing the temperature of the cooling plate 115.

In some embodiments, the flow resistance detection member 134 includes a first hydraulic sensor for detecting a first hydraulic pressure value at the inlet 1151 and a second hydraulic sensor for detecting a second hydraulic pressure value at the outlet 1152, the difference between the first hydraulic pressure value and the second hydraulic pressure value being a flow resistance value, respectively, electrically connected to the alarm assembly 140.

It will be appreciated that, because the cooling flow path itself has a certain resistance to the cooling fluid, the first hydraulic pressure of the cooling fluid at the inlet 1151 is generally greater than the second hydraulic pressure at the outlet 1152, and the difference between the first hydraulic pressure and the second hydraulic pressure is the flow resistance in the cooling flow path.

When the cooling plate 115 deforms to cause the cooling flow passage to deform, the resistance of the cooling flow passage to the cooling liquid increases, thereby causing the difference between the first hydraulic pressure value and the second hydraulic pressure value to increase, that is, the flow resistance value in the cooling flow passage increases, and the flow resistance value is higher than the preset flow resistance value range. When the cooling plate 115 breaks to cause the cooling flow passage to break, the cooling liquid in the cooling flow passage may leak out from the broken position of the cooling flow passage, thereby causing a decrease in the difference between the first hydraulic pressure value and the second hydraulic pressure value, that is, a decrease in the flow resistance value in the cooling flow passage, which is lower than the preset flow resistance value range.

In the embodiment of the present utility model, the alarm assembly 140 may include an alarm that outputs the first alarm signal, the second alarm signal, the third alarm signal, and the fourth alarm signal at the same time. Alternatively, the alarm assembly 140 may include a plurality of alarms, each of which outputs at least one different alarm signal.

The embodiment of the utility model also provides a vehicle, which comprises a battery system, wherein the specific structure of the battery system refers to the embodiment, and the vehicle bag adopts all the technical schemes of all the embodiments, so that the vehicle bag at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

The vehicle (not shown in the figure) provided in the embodiment of the utility model can detect the first air pressure value in the first enclosed space 1100 of the battery system 100 through the first air pressure sensor 131, and output the first alarm signal when the first air pressure value is outside the first preset range value, so as to accurately remind the user of deformation or damage of the bottom plate 117 or the cooling plate 115 of the battery housing 110, so that the user can leave the vehicle rapidly, or the vehicle can be sent to a maintenance point for maintenance in time.

The foregoing has outlined rather broadly the more detailed description of embodiments of the utility model, wherein the principles and embodiments of the utility model are explained in detail using specific examples, the above examples being provided solely to facilitate the understanding of the method and core concepts of the utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present utility model, the present description should not be construed as limiting the present utility model.

Claims

1. A battery system, the battery system comprising:

2. The battery system of claim 1, wherein the battery case includes a first pipe passing through the cooling plate or the bottom plate, one end of the first pipe communicating with the second closed space, and the other end of the first pipe communicating with the first air pressure sensor.

3. The battery system of claim 2, wherein the battery case further comprises a mounting frame, the cover plate and the cooling plate are respectively connected to opposite sides of the mounting frame, and the cover plate, the mounting frame and the cooling plate enclose the first enclosed space; the first pipeline passes through the mounting frame and the cooling plate, and part of the first pipeline is positioned in the first airtight space.

4. The battery system of any one of claims 1-3, wherein the battery housing includes a second conduit passing through an inner surface of the first enclosed space, an end of the second conduit being in communication with the first enclosed space;

5. The battery system of claim 4, wherein the battery case further comprises a mounting frame, the cover plate and the cooling plate are respectively connected to opposite sides of the mounting frame, and the cover plate, the mounting frame and the cooling plate enclose the first enclosed space; the second pipeline passes through the mounting frame.

6. A battery system according to any one of claims 1 to 3, wherein a conductive member is provided in the battery case, and the detection assembly includes a resistance detection member electrically connected to the conductive member, the resistance detection member being for detecting an insulation resistance value of the conductive member;

7. The battery system of claim 6, wherein the battery system includes a communication interface provided to the battery case, the communication interface being electrically connected to the conductive member, the resistance detection member being electrically connected to the communication interface.

8. The battery system according to any one of claims 1 to 3, wherein a cooling flow passage is provided in the cooling plate; the detection assembly further comprises a flow resistance detection component for detecting a flow resistance value in the cooling flow channel;

9. The battery system of claim 8, wherein the cooling flow path includes an inlet and an outlet, the flow resistance detection member includes a first hydraulic sensor and a second hydraulic sensor electrically connected to the alarm assembly, respectively, the first hydraulic sensor for detecting a first hydraulic value at the inlet and the second hydraulic sensor for detecting a second hydraulic value at the outlet, the difference between the first hydraulic value and the second hydraulic value being the flow resistance value.

10. A vehicle comprising a battery system according to any one of claims 1-9.