Battery device and electric equipment

Abstract

The utility model relates to a battery device and electric equipment, the battery device comprises a shell, a battery unit and a temperature detection assembly, and the shell is provided with an accommodating groove; the battery unit is arranged in the accommodating groove, and a gap between the battery unit and the side wall of the accommodating groove forms an exhaust channel; the temperature detection assembly comprises a first temperature detection piece arranged in the exhaust channel and used for detecting the temperature in the exhaust channel, so that the environment temperature of the exhaust channel in the battery device is accurately monitored in real time, the risk early warning capability is improved, and the safety performance is higher.

Description

Technical Field

[0001] The present disclosure relates to the technical field of batteries, and in particular, to a battery device and an electrical device using the same. Background Art

[0002] In the related art, when thermal runaway occurs inside a battery pack, the ambient temperature inside the pack will rapidly increase. Therefore, how to more comprehensively grasp the out-of-control situation inside the pack and increase the early warning ability of thermal runaway from the aspect of ambient temperature, and improve the safety of the entire battery pack has become the research goal of those in the industry. Summary of the Utility Model

[0003] The purpose of the present disclosure is to provide a battery device and an electrical device using the same, so as to monitor the ambient temperature of the exhaust passage inside the battery device in real time and accurately, improve the risk early warning ability, and have higher safety performance.

[0004] To achieve the above purpose, a first aspect of the present disclosure provides a battery device, including: a housing having a receiving groove; a battery unit disposed in the receiving groove, and a gap between the battery unit and the side wall of the receiving groove forms an exhaust passage; and a temperature detection assembly including a first temperature detector disposed in the exhaust passage for detecting the temperature inside the exhaust passage.

[0005] Optionally, the battery unit includes battery cells, the battery unit has two opposite ends in the length direction of the battery cells, and a gap between at least one of the ends and the side wall of the receiving groove forms the exhaust passage, and at least one of the exhaust passages is provided with the first temperature detector.

[0006] Optionally, the number of the first temperature detectors is one or more, and at least one of the first temperature detectors is located at an intermediate position in the length direction of the exhaust passage.

[0007] Optionally, the battery unit includes a plurality of the battery cells arranged side by side in the thickness direction of the battery cells, a connecting member for connecting the plurality of battery cells is disposed at the end of the battery unit, and the first temperature detector is disposed on the connecting member.

[0008] Optionally, the battery device further includes a protective shell disposed on the connecting member, and the protective shell has a first avoidance opening for avoiding the detection portion of the first temperature detector.

[0009] Optionally, the battery device further includes a battery information collector electrically connected to the first temperature detector, and the battery information collector is disposed between the connecting member and the protective shell.

[0010] Optionally, a second avoidance opening is provided on the protective shell for avoiding a first wire harness electrically connected between the battery information collector and the first temperature detector; and / or, a first connection structure is further formed on the protective shell for fixing the first wire harness electrically connected between the battery information collector and the first temperature detector; and / or, a potting port is further provided on the protective shell.

[0011] Optionally, the temperature detection assembly further includes a second temperature detector disposed on the connecting member and attached to the battery cell, and the second temperature detector is electrically connected to the battery information collector; a third avoidance opening is provided on the protective shell for avoiding a second wire harness electrically connected between the battery information collector and the second temperature detector; and / or, a second connection structure is further formed on the protective shell for fixing the second wire harness electrically connected between the battery information collector and the second temperature detector.

[0012] Optionally, a third connection structure is provided on the connecting member, and the third connection structure is connected to the first temperature detector; or, the first temperature detector is bonded to the connecting member.

[0013] Optionally, the battery cell includes two outer wall surfaces opposite to each other in the thickness direction of the battery core, and a spacer is provided between at least one of the outer wall surfaces and the side wall of the receiving groove, and the spacer is provided with an intermediate transmission channel communicating the two exhaust channels.

[0014] Optionally, the interior of the housing is divided into a plurality of the receiving grooves by cross beams and / or longitudinal beams, and at least one of the first temperature detectors is disposed in each of the receiving grooves.

[0015] Optionally, an exhaust port communicating with the exhaust channel and an exhaust member located at the exhaust port are provided on the housing.

[0016] A second aspect of the present disclosure provides an electrical device including the battery device as described above.

[0017] Through the above technical solutions, by providing a first temperature detector in the exhaust channel of the battery device to monitor the ambient temperature in the exhaust channel in real time and accurately, the temperature information in the battery device can be grasped in time, which is convenient for adjusting, for example, the electrical device in time, improving the risk warning ability and having higher safety performance. Moreover, the gap between the battery cell and the side wall of the receiving groove directly forms the above exhaust channel, without adding other additional components, the overall structure is simpler and is beneficial to obtaining the temperature information in the battery device more quickly, accelerating the reaction speed in case of emergency and improving the safety performance.

[0018] Other features and advantages of the present disclosure will be described in detail in the following detailed description section. Description of the Drawings

[0019] The drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0020] Figure 1 is a schematic structural diagram of a battery device provided in an exemplary embodiment of the present disclosure;

[0021] Figure 2 is Figure 1 a partial enlarged schematic diagram of position A in

[0022] Figure 3 is a schematic structural diagram of an exhaust port of an exhaust passage of a battery device provided in an exemplary embodiment of the present disclosure;

[0023] Figure 4 is a schematic structural diagram of a connecting member and a protective shell of a battery device provided in an exemplary embodiment of the present disclosure;

[0024] Figure 5 is an exploded schematic diagram of a connecting member and a protective shell of a battery device provided in an exemplary embodiment of the present disclosure;

[0025] Figure 6 is Figure 5 a partial enlarged schematic diagram of position B in.

[0026] Description of Reference Numerals

[0027] 1 - housing; 110 - receiving groove; 120 - exhaust port; 130 - frame; 131 - first side beam; 132 - second side beam; 2 - battery unit; 210 - battery cell; 220 - end; 230 - outer wall surface; 3 - exhaust passage; 4 - temperature detection assembly; 410 - first temperature detector; 411 - detection part; 420 - battery information collector; 430 - second temperature detector; 5 - connecting member; 510 - third connection structure; 520 - connection bracket; 530 - fourth connection structure; 6 - protective shell; 610 - first avoidance opening; 620 - second avoidance opening; 630 - first connection structure; 640 - potting port; 650 - third avoidance opening; 660 - second connection structure; 670 - fourth avoidance opening; 7 - first wire harness; 8 - second wire harness; 9 - spacer; 910 - intermediate transmission channel; 10 - cross beam; 11 - longitudinal beam; 12 - exhaust member; 13 - electrical connection piece. Detailed Description

[0028] The following will describe in detail the specific embodiments of the present disclosure with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustrating and explaining the present disclosure, and are not intended to limit the present disclosure.

[0029] It should be noted that all actions of obtaining signals, information or data in the present disclosure are carried out on the premise of complying with the corresponding data protection regulations and policies of the country where the location is located and obtaining authorization from the owner of the corresponding device.

[0030] In the present disclosure, unless otherwise stated, "inside and outside" refer to the inside and outside relative to the contour of the component or structure itself. In addition, it should be noted that the terms such as "first, second" are used to distinguish one element from another, and do not have sequentiality and importance. Additionally, in the description with reference to the accompanying drawings, the same reference numerals in different drawings represent the same elements.

[0031] According to a first aspect of the present disclosure, a battery device is provided. Referring to Figures 1 to 6 as shown, the battery device includes a housing 1, a battery unit 2, and a temperature detection component 4. The housing 1 has a receiving groove 110; the battery unit 2 is disposed in the receiving groove 110, and a gap between the battery unit 2 and the side wall of the receiving groove 110 forms an exhaust passage 3; the temperature detection component 4 includes a first temperature detection element 410 disposed in the exhaust passage 3 for detecting the temperature inside the exhaust passage 3.

[0032] Through the above technical solution, by disposing the first temperature detection element 410 in the exhaust passage 3 of the battery device to monitor the ambient temperature in the exhaust passage 3 in real time and accurately, the temperature information inside the battery device can be grasped in a timely manner, which is convenient for timely adjusting, for example, the electrical equipment, improving the risk warning ability and having higher safety performance. Moreover, the gap between the battery unit 2 and the side wall of the receiving groove 110 directly forms the above exhaust passage 3, without adding other additional components, the overall structure is simpler and is conducive to more quickly obtaining the temperature information inside the battery device, accelerating the response speed in case of emergency and improving the safety performance.

[0033] Among them, exemplarily, the above housing 1 may include a bottom plate and a frame 130 disposed on the bottom plate, and the frame 130 may include two first side beams 131 disposed opposite to each other in the thickness direction of the battery cell 210, and two second side beams 132 disposed between the two first side beams 131 for jointly enclosing the above receiving groove 110 by the frame 130 and the bottom plate. It should be noted that the above thickness direction may refer to Figure 1 the left - right direction in the drawing.

[0034] In addition, in some embodiments, the inside of the housing 1 is divided into a plurality of receiving grooves 110 by a cross beam 10 and / or a longitudinal beam 11. Exemplarily, such asFigure 1 As shown, between two first side beams 131 and two second side beams 132, a cross beam 10 and a longitudinal beam 11 divide, for example, four accommodation grooves 110. And at least one first temperature detection element 410 is arranged in each accommodation groove 110, so as to be able to monitor the ambient temperature in each accommodation groove 110 in a timely and accurate manner, improve the risk warning ability and have a higher safety performance.

[0035] Of course, the specific embodiment where the accommodation grooves 110 are, for example, four is exemplary, and the present disclosure is not limited thereto. Those skilled in the art can adaptively adjust the number of the cross beam 10 and the longitudinal beam 11 according to actual application requirements, so as to divide different numbers of accommodation grooves 110 in the housing 1, and arrange at least one first temperature detection element 410 in each accommodation groove 110, which is conducive to realizing timely and accurate detection.

[0036] In addition, it should be noted that the multiple accommodation grooves 110 can be arranged to communicate with each other or not communicate with each other. The present disclosure does not make specific limitations in this regard. For example, when the multiple accommodation grooves 110 are arranged to communicate with each other, at least one first temperature detection element 410 can be arranged in each accommodation groove 110, or at least one first temperature detection element 410 can also be arranged in one of two adjacent accommodation grooves 110. The present disclosure is not limited thereto. Those skilled in the art can adaptively design according to actual application requirements, and the purpose is to be able to realize the detection of the ambient temperature inside the multiple accommodation grooves 110 through the first temperature detection element 410. And when, for example, the multiple accommodation grooves 110 are arranged not to communicate with each other, at least one first temperature detection element 410 needs to be arranged in each accommodation groove 110, so as to be able to realize the detection of the ambient temperature in the corresponding accommodation groove 110 through the first temperature detection element 410 in each respective accommodation groove 110.

[0037] In some embodiments, referring to Figures 1 to 3 As shown, the battery unit 2 may include a battery cell 210. The battery unit 2 has two opposite ends 220 along the length direction of the battery cell 210. The gap between at least one end 220 and the side wall of the accommodation groove 110 forms an exhaust passage 3. At least one first temperature detection element 410 is arranged in at least one exhaust passage 3. Thus, since the first explosion-proof valve (not shown) on the battery cell 210 is usually arranged at two opposite ends 220 along the length direction of the battery cell 210, the present disclosure exemplarily arranges the first temperature detection element 410 in the exhaust passage 3 formed by the gap between two opposite ends 220 along the length direction of the battery cell 210 and the side wall of the accommodation groove 110, so as to facilitate the rapid detection of the ambient temperature in the exhaust passage 3 through the first temperature detection element 410.

[0038] Of course, it should be noted that an exhaust passage 3 may also be formed in the gap between at least one of the two outer wall surfaces 230 of the battery cell 2 that are opposite to each other in the thickness direction of the battery core 210 and the side wall of the receiving groove 110, and at least one first temperature detection element 410 may also be provided in the exhaust passage 3 to detect the ambient temperature in the receiving groove 110. The present disclosure is not limited thereto.

[0039] Among them, as Figure 2 shown, the number of the first temperature detection elements 410 in the exhaust passage 3 formed by the gap between one end 220 of the two opposite ends 220 of the battery core 210 in the length direction and the side wall of the receiving groove 110 (such as the side wall of the second side beam 132) may be, for example, one, and one first temperature detection element 410 is located at the middle position in the length direction of the exhaust passage 3, reducing the temperature conduction time when the battery core 210 farthest from the first temperature detection element 410 in the exhaust passage 3 undergoes thermal runaway, so as to facilitate timely and accurate monitoring of the ambient temperature in the exhaust passage 3, improve the reaction speed of the battery device after thermal runaway, facilitate timely and effective adjustment, and have higher safety performance.

[0040] Of course, it should be noted that the number of the first temperature detection elements 410 in the exhaust passage 3 formed by the gap between one end 220 of the two opposite ends 220 of the battery core 210 in the length direction and the side wall of the receiving groove 110 (such as the side wall of the second side beam 132) may also be multiple. The present disclosure does not make specific limitations in this regard, and those skilled in the art can adaptively design the specific number of the first temperature detection elements 410 according to actual application requirements.

[0041] In addition, Figure 1 exemplarily shown, the number of the first temperature detection elements 410 in the exhaust passage 3 formed by the gap between the other end 220 of the two opposite ends 220 of the battery core 210 in the length direction and the cross beam 10 may also be, for example, one or more, so as to further improve the detection effect in the receiving groove 110, improve the reaction speed of the battery device after thermal runaway, facilitate timely and effective adjustment, and have higher safety performance. Among them, the above-mentioned length direction may refer to Figure 1 the up and down direction in the drawing.

[0042] In some embodiments, referring to Figures 1 to 6As shown, the battery cell 2 may include a plurality of battery cells 210 arranged side by side in the thickness direction of the battery cell 210. A connecting member 5 for connecting the plurality of battery cells 210 is provided at the end 220 of the battery cell 2. The first temperature detection member 410 is provided on the connecting member 5. In this way, while the plurality of battery cells 210 are constrained and fixed through the connecting member 5, the installation and fixation of the first temperature detection member 410 can also be achieved, with high integration, reduced number of components, higher space utilization rate, and being beneficial to the overall lightweight design of the battery device.

[0043] Of course, it should be noted that the specific embodiment in which the first temperature detection member 410 is provided on the connecting member 5 of the battery cell 210 is exemplary. In some other embodiments not shown, the first temperature detection member 410 may also be provided on, for example, the inner side wall of the second side beam 132, and the purpose is to be able to monitor the ambient temperature in the exhaust passage 3 through the first temperature detection member 410. The present disclosure is not limited to this.

[0044] Among them, in some embodiments, referring to Figures 4 to 6 As shown, a third connection structure 510 may be provided on the connecting member 5, and the third connection structure 510 is connected to the first temperature detection member 410. Exemplarily, the connecting member 5 may include a connection bracket 520, and the third connection structure 510 is configured as a snap structure formed on the connection bracket 520, so as to be able to snap the first temperature detection member 410 onto the connection bracket 520, with a simple structure and convenient installation and manufacturing. Among them, the snap structure can be constructed by those skilled in the art into any well-known snap connection structures in the art, such as an L-shaped snap, a straight-arm snap, or a U-shaped snap, etc., and the purpose is to be able to stably snap the first temperature detection member 410 onto the connection bracket 520.

[0045] Of course, the above embodiment in which the first temperature detection member 410 is fixedly connected to the connection bracket 520 by snapping is exemplary. In some other embodiments, the first temperature detection member 410 may also be bonded to the connecting member 5 or connected to the connecting member 5 by, for example, bolts. The present disclosure is not limited to this.

[0046] In some embodiments, referring to Figures 4 to 6 As shown, the battery device may further include a protective shell 6 provided on the connecting member 5, and the protective shell 6 has a first avoidance opening 610 for avoiding the detection portion 411 of the first temperature detection member 410, so that while the protective shell 6 can provide protection, it will not affect the temperature measurement effect of the first temperature detection member 410.

[0047] In addition, in some embodiments, referring to Figures 4 to 6As shown, the battery device may further include a battery information collector (BIC) 420 electrically connected to the first temperature detector 410. The battery information collector 420 is disposed between the connector 5 and the protective case 6, so as to enable the collection of temperature through the first temperature detector 410, and transmit the collected temperature information to, for example, a controller (not shown) through the battery information collector 420, thereby enabling the acquisition of the temperature information inside the battery device, improving the risk warning ability and having higher safety performance.

[0048] In some embodiments, referring to Figures 4 to 6 As shown, a second avoidance opening 620 may be provided on the protective case 6 for avoiding the first wire harness 7 electrically connected between the battery information collector 420 and the first temperature detector 410, facilitating wire routing, effectively shortening the wiring length and being able to improve the space utilization rate inside the battery device.

[0049] Moreover, considering that in order to ensure that the first wire harness 7 can be stably connected to the battery information collector 420 and the first temperature detector 410, in some embodiments, referring to Figures 4 to 6 As shown, a first connection structure 630 may also be formed on the protective case 6 for fixing the first wire harness 7 electrically connected between the battery information collector 420 and the first temperature detector 410, with high reliability. Among them, the specific structure of the first connection structure 630 is not specifically limited in this disclosure, and those skilled in the art can design it according to actual application requirements. For example, it can be any card slot structure or threaded connection structure well-known in the art. This disclosure is not limited thereto, and the purpose is to be able to stably fix the first wire harness 7.

[0050] Optionally, in some embodiments, referring to Figures 4 to 6 As shown, the temperature detection assembly 4 may further include a second temperature detector 430. The second temperature detector 430 is connected to, for example, a fourth connection structure 530 on the connector 5, so as to enable the second temperature detector 430 to be disposed on the connector 5, and the detection part of the second temperature detector 430 is attached to the battery cell 210 of the battery unit 2. At the same time, the second temperature detector 430 is electrically connected to the battery information collector 420, so as to enable the acquisition of the temperature of the battery cell 210 of the battery unit 2. In this way, by cooperating with the first temperature detector 410 for detecting the exhaust passage 3, it is convenient to more comprehensively master the temperature information inside the battery device, improving the risk warning ability and having higher safety performance.

[0051] Among them, it should be noted that the above-mentioned second temperature detector 430 can be connected to the connection bracket 520 of the connector 5, such as the connection bracket 520, in the same fixing manner as the first temperature detector 410. The specific connection method of the first temperature detector 410 has been described above, and the present disclosure will not repeat it here. Those skilled in the art can adaptively design according to actual application requirements. The purpose is to be able to stably connect the second temperature detector 430 to the connection bracket 520 to realize the temperature acquisition of the battery cell 210 of the battery unit 2. In addition, the specific arrangement quantity and specific arrangement position of the above-mentioned second temperature detector 430 are not specifically limited in the present disclosure. Those skilled in the art can adaptively design according to actual application requirements. The purpose is to be able to realize the temperature monitoring of the battery cell 210.

[0052] In addition, in some embodiments, referring to Figures 4 to 6 as shown, a third avoidance opening 650 can be provided on the protective shell 6 to avoid the second wire harness 8 electrically connected between the battery information collector 420 and the second temperature detector 430, which is convenient for wiring, effectively shortens the wiring length and can improve the space utilization inside the battery device. In addition, Figures 4 to 6 exemplarily shows that a fourth avoidance opening 670 can be provided on the protective shell 6 to avoid the second temperature detector 430, so as to facilitate the installation operation of the second wire harness 8 and the second temperature detector 430.

[0053] And, considering that in order to ensure that the second wire harness 8 can be stably connected to the battery information collector 420 and the second temperature detector 430, in some embodiments, referring to Figures 4 to 6 as shown, a second connection structure 660 is further formed on the protective shell 6 to fix the second wire harness 8 electrically connected between the battery information collector 420 and the second temperature detector 430, with high reliability. Among them, the specific structure of the second connection structure 660 is not specifically limited in the present disclosure. Those skilled in the art can design according to actual application requirements. For example, it can be any card slot structure or threaded connection structure well-known in the art. The present disclosure is not limited thereto. The purpose is to be able to stably fix the second wire harness 8.

[0054] It should be noted that the above-mentioned first temperature detector 410 and second temperature detector 430 can be any temperature sensor well-known in the art. For example, they can be NTC (negative temperature coefficient) thermistors or thermocouples and other temperature sensors. The present disclosure is not limited thereto. The purpose is to be able to realize temperature detection.

[0055] In addition, the above-mentioned controller can be an independently arranged controller such as a PLC or a single-chip microcomputer, or it can also be, for example, an automotive electronic control unit (ECU). Moreover, the specific structure of the battery information collector 420 is not specifically limited. One can choose a battery information collector 420 well-known in the art and connect it to the controller, either wired or wirelessly. This disclosure does not make specific limitations. In addition, since the data transmission method and the control connection method between the battery information collector 420 and the controller can be achieved by controllers well-known in the art, no further elaboration will be made here.

[0056] Furthermore, the specific structures of the above-mentioned first wire harness 7 and second wire harness 8 are not specifically limited in this disclosure. The purpose is to enable electrical connection between the battery information collector 420 and the first temperature detector 410, as well as between the battery information collector 420 and the second temperature detector 430. For example, it can be any wire harness structure with plug connectors well-known in the art, which is simple in structure and convenient for installation and operation. This disclosure is not limited to this.

[0057] In some embodiments, referring to Figures 4 to 6 As shown, the battery unit 2 can include a plurality of battery cells 210 arranged side by side along the thickness direction of the battery cell 210 and electrically connected by a plurality of electrical connection pieces 13. And the number of the connectors 5 connected to the end 220 of the battery unit 2 can be one or more. That is, it can be understood that a plurality of battery cells 210 arranged side by side along the thickness direction of the battery cell 210 can be fixedly connected through a single connection bracket 520, or a plurality of battery cells 210 arranged side by side along the thickness direction of the battery cell 210 can be divided into multiple groups, and each group of battery cells 210 is fixedly connected through its corresponding connection bracket 520 respectively. This disclosure does not make specific limitations on this.

[0058] Moreover, the connector 5 is not limited to being arranged at the end 220 of the battery unit 2. At the same time, connectors 5 can also be added to the two outer wall surfaces 230 of the battery unit 2 opposite to each other along the thickness direction of the battery cell 210 to further improve the stability of the plurality of battery cells 210. This disclosure is not limited to this.

[0059] In addition, the specific number of the protective cases 6 provided on the connector 5 is not specifically limited in this disclosure. For example, it can be one or more. Moreover, this disclosure does not make specific limitations on the specific structures of the above-mentioned connector 5 and protective case 6. Those skilled in the art can adaptively design according to actual application requirements. In addition, in order to prevent short circuits between the plurality of battery cells 210, the materials of the above-mentioned connector 5 and protective case 6 can be insulating materials such as plastic, rubber, or ceramic. At the same time, covering the end 220 of the battery unit 2 with the connector 5 and protective case 6 can also play a role in leakage protection and improve safety.

[0060] In some embodiments, referring toFigure 4 As shown, a potting port 640 may also be provided on the protective shell 6 to facilitate potting operations, improve the seismic performance and waterproof performance of the battery unit 2, and help increase the service life of the battery unit 2.

[0061] In addition, in some embodiments, referring to Figures 1 to 3 As shown, an exhaust port 120 communicating with the exhaust passage 3 and an exhaust member 12 located at the exhaust port 120 may be provided on the housing 1. Exemplarily, since the first explosion-proof valve (not shown) on the battery cell 210 is usually arranged on two opposite ends 220 of the battery cell 210 along the length direction, in this way, by arranging the exhaust port 120 on the inner side wall of, for example, the second side beam 132, it is convenient to quickly perform the exhaust operation through the exhaust member 12 at the exhaust port 120 during thermal runaway.

[0062] Moreover, considering that the first explosion-proof valves are provided on both opposite ends 220 of the battery cell 210 along the length direction, in order to be able to discharge the gas in the gap between the other end 220 of the two opposite ends 220 of the battery cell 210 along the length direction and the cross beam 10 into the exhaust passage 3, in some embodiments, referring to Figures 1 to 3 As shown, the battery unit 2 may include two outer wall surfaces 230 opposite to each other in the thickness direction of the battery cell 210. At least one outer wall surface 230 and the side wall of the receiving groove 110 are provided with a spacer 9. The spacer 9 is provided with an intermediate transmission channel 910 communicating the two exhaust passages 3, so as to be able to guide the gas in the gap between the end 220 of the battery cell 210 and the cross beam 10 into the exhaust passage 3 formed by the gap between the end 220 of the battery cell 210 and the second side beam 132, and discharge the gas through the exhaust port 120 provided on the inner side wall of the second side beam 132.

[0063] Among them, the spacer 9 may be constructed in any suitable manner. For example, it may be a plate structure such as an aluminum alloy profile or a stainless steel profile. The present disclosure does not make specific limitations thereto, and the purpose is to be able to form an intermediate transmission channel 910 communicating the exhaust passage 3 inside.

[0064] In addition, the specific embodiment of arranging the exhaust port 120 on the inner side wall of the second side beam 132 is exemplary. In some other embodiments not shown, the exhaust port 120 may also be arranged on the bottom plate of the housing 1, or the exhaust port 120 is arranged on the first side beam 131 of the housing 1. The present disclosure does not make specific limitations to this deformation manner, and the purpose is to be able to connect the exhaust port 120 to the exhaust passage 3 to facilitate the exhaust operation inside the battery device. The present disclosure is not limited thereto.

[0065] In addition, the above exhaust component 12 may include, for example, a second explosion-proof valve. In this way, when the battery device is in thermal runaway, for example, the high-temperature gas generated inside the battery cell 210 will quickly reach the exhaust passage 3. At this time, the air temperature and pressure in the exhaust passage 3 will rise sharply. When the pressure in the accommodation groove 110 reaches the threshold value of the second explosion-proof valve, the second explosion-proof valve will automatically open under the action of the pressure, thereby realizing the pressure relief operation (exhaust operation) in the accommodation groove 110 until the air pressure in the accommodation groove 110 is lower than the valve opening threshold value, and then the second explosion-proof valve closes, avoiding safety problems such as explosion due to excessive air pressure in the battery device.

[0066] Among them, the present disclosure does not limit the specific structure of the above explosion-proof valve. The purpose is to be able to realize the corresponding pressure relief operation during thermal runaway. For example, the explosion-proof valve can adopt, for example, a piston-type explosion-proof valve, so as to be able to be reused with low maintenance cost; or, the explosion-proof valve can also adopt a thimble-type explosion-proof valve. The present disclosure does not make specific limitations on this.

[0067] According to the second aspect of the present disclosure, there is provided an electrical device including the above battery device, so as to be able to monitor the ambient temperature of the exhaust passage in the battery device in real time and accurately, improve the risk warning ability, and have higher safety performance. In addition, this electrical device also has all the beneficial effects of the above battery device, which will not be elaborated herein again.

[0068] Among them, it should be noted that the above electrical device can be a vehicle, where the vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. Of course, in some other embodiments, the above electrical device can also be a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy and an electric tool, etc. The spacecraft can include an airplane, a rocket, a space shuttle and a spaceship, etc.; the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric vehicle toy, an electric ship toy and an electric airplane toy, etc.; the electric tool can include a metal cutting electric tool, a grinding electric tool, an assembly electric tool and a railway electric tool, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, a hammer drill, an impact electric drill, a concrete vibrator and a planer, etc. The present disclosure is not limited thereto.

[0069] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0070] In addition, it should be noted that, among the various specific technical features described in the above specific embodiments, they can be combined in any suitable way without contradiction. To avoid unnecessary repetition, the present disclosure will not separately describe various possible combination methods.

[0071] In addition, any combinations can be made among various different embodiments of the present disclosure, as long as they do not violate the idea of the present disclosure, and they should equally be regarded as the content disclosed by the present disclosure.

Claims

1. A battery device, characterized in that, Comprising: A housing having a receiving groove; A battery cell disposed in the receiving groove, and a gap between the battery cell and the side wall of the receiving groove forms an exhaust passage; And A temperature detection assembly including a first temperature detector disposed in the exhaust passage for detecting the temperature inside the exhaust passage.

2. The battery device according to claim 1, wherein, The battery cell includes a battery core, and the battery cell has two opposite ends in the length direction of the battery core. A gap between at least one of the ends and the side wall of the receiving groove forms the exhaust passage, and at least one of the exhaust passages is provided with the first temperature detector.

3. The battery device according to claim 2, characterized in that, The number of the first temperature detectors is one or more, and at least one of the first temperature detectors is located at an intermediate position in the length direction of the exhaust passage.

4. The battery device according to claim 2 or 3, characterized in that, The battery cell includes a plurality of the battery cores arranged side by side in the thickness direction of the battery core, and a connecting member connecting the plurality of battery cores is disposed at the end of the battery cell, and the first temperature detector is disposed on the connecting member.

5. The battery device according to claim 4, wherein, The battery device further includes a protective shell disposed on the connecting member, and the protective shell has a first avoidance opening for avoiding the detection portion of the first temperature detector.

6. The battery device according to claim 5, characterized in that The battery device further includes a battery information collector electrically connected to the first temperature detector, and the battery information collector is disposed between the connecting member and the protective shell.

7. The battery device according to claim 6, characterized in that, The protective shell is provided with a second avoidance opening for avoiding a first wire harness electrically connected between the battery information collector and the first temperature detector; and / or, The protective shell further forms a first connection structure for fixing a first wire harness electrically connected between the battery information collector and the first temperature detector; and / or, The protective shell is further provided with a potting port.

8. The battery device according to claim 6, characterized in that, The temperature detection assembly further includes a second temperature detector, the second temperature detector is disposed on the connecting member and attached to the battery cell, and the second temperature detector is electrically connected to the battery information collector; The protective shell is provided with a third avoidance opening for avoiding a second wire harness electrically connected between the battery information collector and the second temperature detector; and / or, The protective shell further forms a second connection structure for fixing a second wire harness electrically connected between the battery information collector and the second temperature detector.

9. The battery device according to claim 4, characterized in that The connecting member is provided with a third connection structure, and the third connection structure is connected to the first temperature detector; or, The first temperature detector is bonded to the connecting member.

10. The battery device according to claim 2, wherein, The battery cell includes two outer wall surfaces opposite to each other in the thickness direction of the battery core, and a spacer is disposed between at least one of the outer wall surfaces and the side wall of the receiving groove, and the spacer is provided with an intermediate transmission passage communicating the two exhaust passages.

11. The battery device according to claim 1, characterized in that, The inside of the housing is divided into a plurality of the receiving grooves by a cross beam and / or a longitudinal beam, and at least one of the first temperature detectors is disposed in each of the receiving grooves.

12. The battery device according to claim 1, characterized in that, The housing is provided with an exhaust port communicating with the exhaust passage and an exhaust member located at the exhaust port.

13. An electrical device, characterized in that, Including the battery device according to any one of claims 1-12.

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