CN219066915U

CN219066915U - Battery module and electric equipment

Info

Publication number: CN219066915U
Application number: CN202223408748.4U
Authority: CN
Inventors: 刘学文; 赵亮; 张放南; 杨红新
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-05-23
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a battery module and electric equipment, wherein the battery module comprises a bracket, a battery and a fiber channel, and an exhaust groove is formed on the bracket; at least part of the battery is accommodated in the exhaust groove; at least part of the optical fiber channel is arranged in the exhaust groove, a sensor positioned in the exhaust groove is arranged in the optical fiber channel, and the sensor is suitable for detecting the temperature of a battery and/or whether a medium exists in the exhaust groove. According to the battery module, the optical fiber channel is arranged, the sensor is arranged in the optical fiber channel, the sensor converts the state of the battery to be detected into the measurable optical signal, and the optical fiber channel transmits the optical signal, so that the single battery is detected, and the detection result is accurate.

Description

Battery module and electric equipment

Technical Field

The utility model relates to the field of batteries, in particular to a battery module and electric equipment.

Background

In the related art, because the arrangement space of the temperature sensing acquisition device of the battery module is limited, the temperature or liquid leakage detection of the battery module can only be carried out by carrying out temperature measurement on part of the batteries, then a simulation model is established, the temperature of the other part of the batteries is estimated, and the temperature of each battery cannot be accurately acquired, so that the detection result of the batteries is different from the actual situation. Meanwhile, the leakage detection of the battery module cannot accurately detect a single battery.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to provide a battery module. According to the battery module, the optical fiber channel is arranged, the sensor is arranged in the optical fiber channel, the sensor converts the state of the battery to be detected into the measurable optical signal, and the optical fiber channel transmits the optical signal, so that the single battery is detected, and the detection result is accurate.

The utility model further provides electric equipment with the battery module.

The battery module according to the present utility model includes: a bracket, on which an exhaust groove is formed; a battery, at least part of which is accommodated in the exhaust groove; the optical fiber channel is at least partially arranged in the exhaust groove, a sensor positioned in the exhaust groove is arranged in the optical fiber channel, and the sensor is suitable for detecting the temperature of a battery and/or whether a medium exists in the exhaust groove.

According to the battery module, the exhaust groove is formed on the bracket, at least part of the battery is accommodated in the exhaust groove, and the exhaust groove provides a gas flow channel for the pressure relief of the battery to prevent the explosion of the battery; meanwhile, the battery module is further provided with a fiber channel, the fiber channel is used as a light conduction tool, a sensor is arranged in the fiber channel, the sensor converts the state of the battery to be tested into a measurable optical signal, the optical signal is transmitted by the fiber channel, the detection of a single battery is realized, the detection result is accurate, the normal operation of the battery is ensured, and the normal operation of the battery module is further ensured.

According to some embodiments of the utility model, the air vent is configured as a plurality of air vent slots arranged sequentially in the first direction, the fiber channel passing sequentially through the plurality of air vent slots.

According to some embodiments of the utility model, the bracket has a fibre channel mounting slot formed therein, the fibre channel mounting slot extending in a first direction and communicating adjacent two of the vent slots.

According to some embodiments of the utility model, the bracket comprises: the bottom plate is provided with the exhaust groove; the end plate is arranged at one end of the bottom plate, and a through hole communicated with the fiber channel mounting groove is formed in the end plate.

According to some embodiments of the utility model, the air discharge grooves are configured in a plurality of rows sequentially arranged in the second direction, the optical fiber passages are configured in a plurality of rows arranged at intervals in the second direction, and the through holes are configured in a plurality of rows in one-to-one correspondence with the air discharge grooves.

According to some embodiments of the utility model, the battery module further comprises: a modem adapted to communicate with a plurality of said fibre channels.

According to some embodiments of the utility model, the battery module further comprises: and the water cooling plates are arranged between two adjacent rows of batteries.

According to some embodiments of the utility model, an explosion-proof valve is arranged at one end of the battery facing the exhaust groove, and the explosion-proof valve is attached to the optical fiber channel.

According to some embodiments of the utility model, the battery is configured as a cylindrical battery.

The consumer according to the utility model is briefly described below.

The electric equipment comprises the battery module in any embodiment. Because the electric equipment comprises the battery module in any one of the embodiments, the electric equipment can accurately detect the temperature or the leakage condition of the battery in the battery module, ensure the normal operation of the battery and further ensure the working reliability of the electric equipment.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of a front structure of a battery module according to an embodiment of the present utility model;

fig. 2 is a schematic view of a rear structure of a battery module according to an embodiment of the present utility model.

Reference numerals:

a battery module 1;

bracket 11, exhaust groove 111, bottom plate 112, end plate 113;

battery 12, fibre channel 13, modem 14, water cooled panel 15.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

A battery module 1 according to an embodiment of the present utility model is described below with reference to fig. 1 to 2.

As shown in fig. 1, a battery module 1 according to the present utility model includes a bracket 11, a battery 12, and a fiber channel 13, and an exhaust groove 111 is formed on the bracket 11; at least a part of the battery 12 is accommodated in the exhaust groove 111; at least part of the fibre channel 13 is arranged in the exhaust channel 111, and a sensor is arranged in the fibre channel 13 in the exhaust channel 111, which sensor is adapted to detect the temperature of the battery 12 and/or whether a medium is present in the exhaust channel 111.

In the related art, because the arrangement space of the temperature sensing acquisition device of the battery module is limited, the temperature or liquid leakage detection of the battery module can only be carried out by carrying out temperature measurement on part of the batteries, then a simulation model is established, the temperature of the other part of the batteries is estimated, and the temperature of each battery cannot be accurately acquired, so that the detection result of the batteries is different from the actual situation. Meanwhile, the leakage detection of the battery module cannot accurately detect the single battery.

Therefore, in the battery module 1, through setting the optical fiber channel 13, the optical fiber channel 13 is used as a light conduction tool, the optical fiber channel 13 is internally provided with a sensor, the sensor converts the state of the battery 12 to be tested into a measurable optical signal, and the optical fiber is used for transmitting the optical signal, so that the detection of the single battery 12 is realized, and the detection result is accurate.

In addition, in the battery module 1, the bracket 11 is provided with the exhaust groove 111, at least part of the battery 12 is accommodated in the exhaust groove 111, and the exhaust groove 111 provides a gas flow channel for the pressure relief of the battery 12 to prevent the explosion of the battery 12; meanwhile, the air discharge groove 111 provides a part of setting space for the optical fiber channel 13, so that the temperature or liquid leakage detection of the battery 12 by the sensor arranged in the air discharge groove 111 is facilitated. Meanwhile, since the electrolyte can generate ester volatile matters, the sensor can accurately acquire the leakage condition of the battery 12 by detecting whether the medium exists in the exhaust groove 111 during the leakage detection.

Therefore, the battery module 1 of this application can detect the temperature or the weeping condition of single battery 12, and the temperature or the weeping testing result of battery 12 are accurate, ensure battery 12 normal operating, and then guarantee battery module 1 normal operating.

According to some embodiments of the present utility model, the air discharge grooves 111 are configured as a plurality of air discharge grooves 111 arranged sequentially in the first direction, and the optical fiber channels 13 pass through the plurality of air discharge grooves 111 sequentially. By configuring the exhaust groove 111 to be a plurality of such arranged in the first direction, it is possible to enhance the exhaust capability of the battery module 1, ensuring high pressure release efficiency when the battery module 1 is depressurized. Meanwhile, each of the air discharge grooves 111 is provided with one battery 12, and the optical fiber channel 13 provides conditions for providing a sensor in each of the air discharge grooves 111 by sequentially passing through the plurality of air discharge grooves 111, and the sensor is adapted to detect the corresponding battery 12 by providing the sensor in each of the air discharge grooves 111, thereby improving the detection capability.

In some embodiments, the sensor includes a temperature sensor and a weeping sensor. The temperature sensor is suitable for measuring the temperature of the battery 12, so as to ensure that the temperature of the battery 12 is normal; the leakage sensor is adapted to detect whether the battery 12 is leaking, and to confirm that the battery 12 is not leaking, thereby ensuring proper operation of the battery 12. By simultaneously arranging the temperature sensor and the leakage sensor in the optical fiber channel 13, the detection function of the battery module 1 can be increased, and the comprehensiveness of the state detection of the battery module 1 can be improved.

According to some embodiments of the present utility model, the bracket 11 is formed with a fiber channel mounting groove that extends in a first direction and communicates adjacent two exhaust grooves 111. The fiber channel mounting groove is used as a mounting position of the fiber channel 13, and has the functions of bearing, positioning and limiting the fiber channel 13; meanwhile, the fiber channel mounting groove is used as a groove body, the fiber channel 13 can be contained in the bracket 11, and when the battery 12 is borne on the bracket 11, the adhesion between the battery 12 and the fiber channel 13 is facilitated. The fibre channel mounting groove passes through at least two exhaust grooves 111 by extending in the first direction and communicating adjacent two exhaust grooves 111, and the fibre channel 13 accommodated in the fibre channel mounting groove passes through at least two exhaust grooves 111, and by providing a sensor in each exhaust groove 111, detection of at least two batteries 12 with one fibre channel 13 is achieved.

According to some embodiments of the present utility model, the bracket 11 includes a bottom plate 112 and an end plate 113, and the bottom plate 112 has an exhaust groove 111 formed thereon; an end plate 113 is provided at one end of the bottom plate 112, and a through hole communicating with the fiber channel mounting groove is formed in the end plate 113. The base plate 112 is adapted to carry the battery 12 and the fibre channel 13, and by providing an end plate 113 at one end of the base plate 112, the end plate 113 provides protection for the battery 12 carried on the base plate 112 on the one hand and provides a mounting location for the modem 14 on the other hand. Meanwhile, through holes communicating with the fibre channel mounting grooves are formed in the end plates 113, and the fibre channels 13 accommodated in the fibre channel mounting grooves are collected after passing through the through holes so as to demodulate the optical signals.

According to some embodiments of the present utility model, the air discharge grooves 111 are configured in a plurality of rows sequentially arranged in the second direction, the optical fiber passages 13 are configured in a plurality of spaced-apart rows in the second direction, and the through holes are configured in a plurality of one-to-one correspondence with the air discharge grooves 111. Since the exhaust grooves 111 are configured in a plurality of rows sequentially arranged in the second direction, the cells 12 of the battery module 1 are configured in a plurality of rows arranged in the second direction, and by configuring the optical fiber channels 13 in a plurality of rows arranged at intervals in the second direction, a plurality of sensors adapted to detect a plurality of cells 12 corresponding to the row in which the optical fiber channels 13 are located are provided in each optical fiber channel 13, thereby realizing detection of all the cells 12 of the battery module 1. The row of air exhaust grooves 111 is penetrated by a fiber channel 13, a plurality of through holes are correspondingly arranged on the end plate 113 according to the row number of the air exhaust grooves 111, and the fiber channel 13 passes through the corresponding through holes on the end plate 113 and is gathered with other fiber channels 13 so as to be convenient for demodulating optical signals.

According to some embodiments of the utility model, the battery module 1 further comprises a modem 14, the modem 14 being adapted to communicate with the plurality of fibre channels 13. The modem 14 serves as a light source, and is connected to the optical fiber channel 13, and the light beam is incident into the optical fiber channel 13 and is sent to the sensor, and the light beam interacts with the measured state of the battery 12 in the sensor, so that the optical property of the light is changed to become a modulated light signal, and the modulated light signal is transmitted back to the modem 14 through the optical fiber channel 13, thereby obtaining the measured state. The modem 14 is adapted to detect the plurality of batteries 12 by communicating with the plurality of optical fiber channels 13, and the plurality of optical fiber channels 13 pass through the plurality of exhaust grooves 111, thereby realizing simultaneous detection of the plurality of batteries 12 and improving the detection capability.

According to some embodiments of the present utility model, the battery module 1 further includes a water cooling plate 15, and the water cooling plate 15 is disposed between two adjacent rows of the batteries 12. In the related art, an excessively high battery temperature may not only affect the life of the battery, but also increase the risk of thermal runaway. In this embodiment, the water cooling plate 15 carries a cooling liquid, which can absorb heat and take away heat through the flow of the cooling liquid; by arranging the water cooling plates 15 between two adjacent rows of the batteries 12, the water cooling plates 15 absorb heat and cool the batteries 12 at two sides, so that the temperature rise of the batteries 12 is reduced, the cycle life of the batteries 12 is prolonged, and the risk of thermal runaway is reduced.

According to some embodiments of the present utility model, the end of the battery 12 facing the exhaust groove 111 is provided with an explosion-proof valve, which is fitted to the optical fiber channel 13. In the related art, the internal temperature of the battery is too high, the electrolyte is vaporized, the expansion of the shell occurs, and if the expansion strength exceeds the bearing strength of the shell, the explosion combustion phenomenon occurs. In this embodiment, by providing the pressure release valve on the battery 12, the pressure release valve can release the pressure of the battery 12 by exhausting the gas under the action of the internal pressure of the battery 12, so as to prevent the explosion and combustion of the battery 12. Since the pressure release valve is disposed at one end of the battery 12 facing the exhaust groove 111, the exhaust groove 111 provides a gas flow path, so that the gas inside the battery 12 can be smoothly exhausted. Meanwhile, the explosion-proof valve is attached to the optical fiber channel 13, and a sensor in the optical fiber channel 13 senses the temperature of the battery 12 or whether a medium exists in the exhaust groove 111, so that the battery 12 is detected, and the health condition of the battery 12 is confirmed.

According to some embodiments of the utility model, the battery 12 is configured as a cylindrical battery. The production process of the cylindrical battery is mature, the cost is low, and the cylindrical battery is suitable for mass continuous production; meanwhile, the cylindrical battery has good mechanical property, strong lever extrusion capability, large surface area and strong heat dissipation capability.

The consumer according to the utility model is briefly described below.

The electric device according to the present utility model includes the battery module 1 in any one of the above embodiments. Because the electric equipment comprises the battery module 1 in any one of the embodiments, the electric equipment can accurately detect the temperature or the leakage condition of the battery 12 in the battery module 1, ensure the normal operation of the battery 12 and further ensure the working reliability of the electric equipment.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

In the description of the present utility model, "plurality" means two or more.

In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module, comprising:

a bracket (11), wherein an exhaust groove (111) is formed on the bracket (11);

a battery (12), wherein at least a part of the battery (12) is accommodated in the exhaust groove (111);

the optical fiber channel (13), at least part of the optical fiber channel (13) is arranged in the exhaust groove (111), a sensor positioned in the exhaust groove (111) is arranged in the optical fiber channel (13), and the sensor is suitable for detecting the temperature of the battery (12) and/or whether a medium exists in the exhaust groove (111).

2. The battery module according to claim 1, wherein the exhaust groove (111) is configured as a plurality of exhaust grooves (111) arranged in order in the first direction, and the optical fiber passage (13) passes through the plurality of exhaust grooves (111) in order.

3. The battery module according to claim 2, wherein the bracket (11) is formed with a fiber passage mounting groove that extends in a first direction and communicates adjacent two of the exhaust grooves (111).

4. A battery module according to claim 3, wherein the bracket (11) comprises:

a bottom plate (112), wherein the exhaust groove (111) is formed on the bottom plate (112);

and an end plate (113), wherein the end plate (113) is arranged at one end of the bottom plate (112), and a through hole communicated with the fiber channel mounting groove is formed in the end plate (113).

5. The battery module according to claim 4, wherein the exhaust grooves (111) are configured in a plurality of rows sequentially arranged in the second direction, the optical fiber channels (13) are configured in a plurality of rows arranged at intervals in the second direction, and the through holes are configured in a plurality of rows in one-to-one correspondence with the exhaust grooves (111).

6. The battery module of claim 5, further comprising: -a modem (14), said modem (14) being adapted to communicate with a plurality of said fibre channels (13).

7. The battery module of claim 5, further comprising: and the water cooling plates (15) are arranged between two adjacent rows of batteries (12).

8. A battery module according to claim 3, characterized in that the end of the battery (12) facing the exhaust groove (111) is provided with an explosion-proof valve, which is attached to the optical fiber channel (13).

9. The battery module according to any one of claims 1 to 8, wherein the battery (12) is configured as a cylindrical battery.

10. An electrical consumer, characterized by comprising a battery module (1) as claimed in any one of claims 1-9.