CN218783185U - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN218783185U CN218783185U CN202223281554.2U CN202223281554U CN218783185U CN 218783185 U CN218783185 U CN 218783185U CN 202223281554 U CN202223281554 U CN 202223281554U CN 218783185 U CN218783185 U CN 218783185U
- Authority
- CN
- China
- Prior art keywords
- explosion
- battery pack
- dehumidifying
- valve
- upper cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Drying Of Gases (AREA)
Abstract
The utility model provides a battery pack, include: the battery box comprises a box body, wherein a battery module is arranged in the box body; dehumidification explosion-proof valve, it is installed on the box, and the part is located the box outside, and dehumidification explosion-proof valve includes: the valve body is arranged on the box body; a dehumidifying device installed in a portion of the valve body located outside the case; the upper cover is arranged at one end of the valve body positioned outside the box body; and the transparent plate is arranged on the upper cover, and the dehumidifying device can be checked through the transparent plate. The utility model discloses an install dehydrating unit on the part that explosion-proof valve is located the box outside, so that operating personnel can realize the periodic replacement of desiccant under the condition of not opening battery package casing, and cover on explosion-proof valve and set up the transparent plate, so that direct observation desiccant quantity and colour change, be demountable installation between its transparent plate and the upper cover, so that take off the transparent plate and carry out the desiccant change, simultaneously through installation water content detection device in explosion-proof valve, so that in time remind to change the desiccant.
Description
Technical Field
The utility model belongs to the technical field of the battery, concretely relates to battery pack.
Background
The battery is because of inside or outside short circuit, overcharge, when colliding, and circuit structure is damaged, causes the battery to generate heat, the inflation, can take place thermal runaway, can explode when leading to sealed battery package can not let out the inside pressure of battery originally, consequently can install explosion-proof valve on the battery package generally, and explosion-proof valve can rupture before gaseous arrival explosion limit, and release gas avoids the battery package to explode.
The current explosion-proof valve mainly has the functions of maintaining the balance of the air pressure inside and outside the battery pack and exhausting air when the battery pack is out of control due to heat. However, in the driving process of the automobile, air flow enters the battery pack through the anti-explosion valve, moisture contained in the air can enter the battery pack along with the air flow, and due to the fact that temperature difference exists between the inside and the outside of the battery pack, condensed water is formed in the battery pack, and safety of the battery pack is affected.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages of the prior art, an object of the present invention is to provide a battery pack, which can effectively avoid the formation of condensed water in the battery pack, so as to improve the safety of the battery pack.
To achieve the above and other related objects, the present invention provides a battery pack, including:
the battery box comprises a box body, wherein a battery module is arranged in the box body;
dehumidification explosion-proof valve, it installs on the box, and the part is located the box outside, dehumidification explosion-proof valve includes:
a valve body mounted on the case;
a dehumidifying device installed in a portion of the valve body located outside the case;
the upper cover is arranged on one end of the valve body positioned outside the box body;
a transparent panel mounted on the upper cover through which the dehumidification device is viewable.
In an embodiment of the present invention, the valve body includes a valve housing, the upper cover is fixedly mounted on an end portion of the valve housing to form a containing cavity between the valve housing, and the dehumidifying device is mounted in the containing cavity.
In an embodiment of the present invention, the dehumidifier includes a desiccant storage tank and a desiccant, the desiccant storage tank is installed in the accommodating cavity, and the desiccant is installed in the desiccant storage tank.
In an embodiment of the present invention, the dehumidifier further includes a dehumidifier, the bottom of the accommodating chamber is provided with an explosion-proof valve vent hole, and the dehumidifier is installed at the bottom of the desiccant storage tank and covers the explosion-proof valve vent hole.
In one embodiment of the present invention, the top surface of the desiccant storage tank abuts against the bottom surface of the upper cover, and the side wall of the desiccant storage tank is provided with a plurality of air holes.
In an embodiment of the present invention, the transparent plate is detachably mounted on the upper cover.
In an embodiment of the present invention, the upper cover includes a mounting hole, the mounting hole communicates with the accommodation chamber, and the transparent plate is mounted at the mounting hole.
The utility model discloses an in one embodiment, the explosion-proof valve of dehumidification still includes water content detection device, water content detection device installs in the valve body.
The utility model discloses an embodiment, the battery package still includes BMS subassembly and warning subassembly, the BMS unit mount is in the box, water content detection device with BMS subassembly communication is connected, the warning subassembly with BMS subassembly communication is connected.
The utility model discloses an in one embodiment, the explosion-proof valve of dehumidification is a plurality of, and is a plurality of the explosion-proof valve of dehumidification is all installed on the box, and respectively with BMS subassembly communication connection.
The utility model provides a Battery pack, be provided with dehydrating unit in the explosion-proof valve of dehumidification, the device is provided with the desiccant, can absorb the moisture that gets into the Battery pack in the air, and install dehydrating unit in the part that the valve body is located the Battery pack box outside, so that operating personnel can realize the periodic replacement of desiccant under the condition of not opening the Battery pack box, avoid the desiccant inefficacy, and cover on the explosion-proof valve of dehumidification and be provided with the transparent plate, so that direct observation desiccant quantity and colour change, install together through covering detachable with this transparent plate and the explosion-proof valve of dehumidification, so that take off the transparent plate and carry out the desiccant change, and, through installing water content detection device in the explosion-proof valve of dehumidification, with BMS (Battery Management System), battery Management System) subassembly links to each other, when detecting that the inside water content of the explosion-proof valve of dehumidification is greater than certain threshold value, send the alarm of changing the desiccant, make it keep the higher dehumidification ability of desiccant always, avoid the inside comdenstion water of Battery pack.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a partial structure of a battery pack according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a partial structure of a battery pack according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of the dehumidification explosion-proof valve in the battery pack according to an embodiment of the present invention.
Fig. 4 is a cross-sectional view of the dehumidification explosion-proof valve in the battery pack according to an embodiment of the present invention.
Fig. 5 is an exploded view of the dehumidification explosion-proof valve in the battery pack according to an embodiment of the present invention.
Fig. 6 is a block diagram of the BMS module, the water content detecting device and the alarm module in the battery pack according to an embodiment of the present invention.
Description of reference numerals:
a battery pack 100; a case 10; a battery module 20; a dehumidification explosion-proof valve 30; a dehumidifying device 31; a valve body 32; an upper cover 33; a transparent plate 34; a valve housing 321; a mounting hole 331; a desiccant mounting groove 311; a desiccant 312; a dehumidifying part 313; an air hole 3111; a water content detection device 35; a BMS component 36; an alarm assembly 37.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can be implemented or applied by other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
It should be noted that the drawings provided in the present embodiment are only for schematically illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, amount and proportion of each component may be changed arbitrarily and the layout of the components may be more complicated.
Please refer to fig. 1 to 6, the utility model provides a battery pack, inside in order to solve and enter into battery pack through explosion-proof valve when the air current, the moisture that contains in the air also can enter into battery pack thereupon, because there is the difference in temperature inside and outside the battery pack, lead to the comdenstion water to form in battery pack, influence the problem of the security of battery pack, concretely, battery pack 100 includes box 10, battery module 20 and dehumidification explosion-proof valve 30, install a plurality of battery module 20 in box 10, dehumidification explosion-proof valve 30 is installed on box 10, and the part of dehumidification explosion-proof valve 30 is located the outside of box 10, and be provided with dehydrating unit 31 in dehumidification explosion-proof valve 30, this dehydrating unit 31 is arranged in getting into the moisture in the inside air of battery pack through explosion-proof valve and getting rid of, in order to avoid forming the comdenstion water in battery pack, thereby avoid influencing the security of battery pack.
Referring to fig. 1, 3 to 5, in the present embodiment, the dehumidification explosion-proof valve 30 includes a dehumidification device 31, a valve body 32, an upper cover 33 and a transparent plate 34, the valve body 31 is installed on the box body 10 and is partially located outside the box body 10, the dehumidification device 31 is installed in the valve body 32 and is located in a portion of the valve body 32 located outside the box body 10, so as to replace the dehumidification device 31, that is, the dehumidification device 31 is installed on a portion of the valve body 32 located outside the box body 10 of the battery pack 100, so that an operator can realize the periodic replacement of the desiccant without opening the case of the battery pack, thereby avoiding the deactivation of the desiccant.
Referring to fig. 1, 3 to 5, in the present embodiment, the upper cover 33 is installed at one end of the valve body 32, specifically, the upper cover 33 is installed at one end of the valve body 32 located outside the box body 10, and a transparent plate 34 is installed on the upper cover 33, so that the dehumidifying device 31 in the valve body 32 can be directly observed through the transparent plate 34, so as to check the amount change and the color change of the dehumidifying agent in the dehumidifying device 31, and to replace the dehumidifying agent in time. In the present embodiment, the transparent plate 34 may be a transparent acrylic plate.
Referring to fig. 1, 3 to 5, in the present embodiment, the valve body 32 includes a valve housing 321, the upper cover 33 is fixedly mounted on an end portion of the valve housing 321, so that a receiving cavity is formed between the upper cover 33 and the valve housing 321, and the dehumidifying device 31 is mounted in the receiving cavity. In the present embodiment, the upper cover 33 includes a mounting hole 331, the mounting hole 331 communicates with the receiving chamber, and a transparent plate 34 is installed at the mounting hole 331 so as to directly view the dehumidifying apparatus 31 installed in the receiving chamber through the transparent plate 34. It should be noted that the transparent plate 34 and the upper cover 33 are detachably mounted, that is, the transparent plate 34 is detachably mounted at the mounting hole 331 of the upper cover 33, so that the transparent plate 34 can be removed for desiccant replacement when necessary.
Referring to fig. 1, 3 to 5, in the present embodiment, the dehumidifying device 31 includes a dehumidifying agent mounting groove 311 and a dehumidifying agent 312, the dehumidifying agent mounting groove 311 is mounted in the accommodating cavity, and the dehumidifying agent 312 is mounted in the dehumidifying agent mounting groove 311 to adsorb moisture in air entering the battery pack through the dehumidifying explosion-proof valve 30, so as to prevent formation of condensed water in the battery pack, thereby preventing the safety of the battery pack from being affected.
Referring to fig. 1 and 3 to 5, in the present embodiment, the top surface of the desiccant mounting groove 311 abuts against the bottom surface of the upper cover 33, the desiccant mounting groove 311 is fixed in the accommodating cavity by the squeezing action of the upper cover 33 and the valve body 31, and the upper cover 33 seals the top surface of the desiccant mounting groove 311 to prevent the desiccant mounting groove 311 from shaking in the accommodating cavity, and prevent the desiccant 312 in the desiccant mounting groove 311 from leaking into the valve body 32, thereby preventing the dehumidification explosion-proof valve 30 from being damaged.
Referring to fig. 1, 3 to 5, in this embodiment, the dehumidifying device 31 further includes a dehumidifying element 313, the dehumidifying element 313 may be a ventilating dehumidifying sheet, an explosion-proof valve vent hole is formed at the bottom of the accommodating cavity, the dehumidifying element 313 is mounted at the bottom of the dehumidifying agent storage tank 311 and covers the explosion-proof valve vent hole, and the dehumidifying element is fixed by the squeezing action of the dehumidifying agent storage tank 311, so as to further improve the dehumidifying performance of the dehumidifying device 31, and further avoid forming condensed water in the battery pack. It should be noted that the side wall of the desiccant mounting groove 311 is provided with a plurality of air holes 3111 to ensure the air permeability of the explosion-proof valve, and ensure the normal operation, that is, air can enter the desiccant mounting groove 311 through the air holes 3111 to contact with the desiccant 312 for dehumidification. That is, the desiccant 312 and the dehumidifying part 313 can perform dehumidification at the same time, so as to improve dehumidification efficiency.
Referring to fig. 1, 2 and 6, in this embodiment, the dehumidifying explosion-proof valve 30 further includes a water content detecting device 35, a BMS (Battery Management System) component 36 and an alarm component 37, wherein the water content detecting device 35 is installed in the valve body 32 for detecting the water content condition in the explosion-proof valve, the BMS component 35 is installed inside the box 10, the BMS component 35 is in communication connection with the water content detecting device 35, the alarm component 37 is in communication connection with the BMS component 36, a water content threshold is preset in the BMS component 36, the water content condition in the dehumidifying explosion-proof valve 30 is detected by the water content detecting device 35, and when the water content exceeds the preset water content threshold, the alarm component 37 is controlled by the BMS component 36 to send an alarm prompt so as to prompt and replace the dehumidifying agent in the dehumidifying device 31 in time, so that the dehumidifying device 31 can maintain a higher dehumidifying capability.
Referring to fig. 1, fig. 2 and fig. 6, in this embodiment, there are a plurality of dehumidification explosion-proof valves 30, and how many dehumidification explosion-proof valves 30 are installed on the box body 10, and are respectively connected to the BMS module 36 in the box body 10 in a communication manner, and the moisture content condition in each explosion-proof valve is detected by the BMS module 36, so as to send out a desiccant replacement prompt in time for the dehumidification explosion-proof valve 30 with a moisture content exceeding a preset moisture content threshold.
The utility model provides a battery pack, be provided with dehydrating unit 31 in dehumidification explosion-proof valve 30, the device is provided with the desiccant, can absorb the moisture that gets into the battery pack in the air, and install dehydrating unit 31 in the part that the valve body is located the battery pack box outside, so that operating personnel can realize the periodic replacement of desiccant under the condition of not opening battery pack box, avoid the desiccant inefficacy, and cover on the dehumidification explosion-proof valve and be provided with the transparent plate, so that direct observation desiccant quantity and colour change, install together through covering this transparent plate with dehumidification explosion-proof valve upper cover detachable, so that take off the transparent plate and carry out the desiccant change, and, through installation water content detection device in the dehumidification explosion-proof valve, link to each other with the BMS subassembly, when detecting that the inside water content of getting into the dehumidification explosion-proof valve is greater than certain threshold value, send the alarm of changing the desiccant, make it keep the higher dehumidification ability of desiccant always, avoid the appearance of the inside comdenstion water of battery pack.
The above description is only a preferred embodiment of the present application and an explanation of the technical principle applied, and it should be understood by those skilled in the art that the scope of the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features, for example, the technical solutions formed by mutually replacing the above technical features (but not limited to) having similar functions disclosed in the present application, without departing from the inventive concept.
Besides the technical features described in the specification, other technical features are known to those skilled in the art, and are not described herein again in order to highlight the innovative features of the present invention.
Claims (10)
1. A battery pack, comprising:
the battery box comprises a box body, wherein a battery module is arranged in the box body;
dehumidification explosion-proof valve, it installs on the box, and the part is located the box outside, dehumidification explosion-proof valve includes:
a valve body mounted on the case;
a dehumidifying device installed in a portion of the valve body located outside the case;
the upper cover is arranged on one end of the valve body, which is positioned outside the box body;
a transparent panel mounted on the upper cover through which the dehumidifying apparatus can be viewed.
2. The battery pack according to claim 1, wherein the valve body comprises a valve housing, the upper cover is fixedly mounted to an end portion of the valve housing to form a receiving cavity with the valve housing, and the dehumidifying device is mounted in the receiving cavity.
3. The battery pack according to claim 2, wherein the dehumidifying device includes a dehumidifying agent storage tank installed in the receiving chamber and a dehumidifying agent installed in the dehumidifying agent storage tank.
4. The battery pack according to claim 3, wherein the dehumidifying device further comprises a dehumidifying member, the accommodating chamber has a vent hole for an explosion-proof valve formed in a bottom thereof, and the dehumidifying member is mounted on the bottom of the desiccant storage tank and covers the vent hole for the explosion-proof valve.
5. The battery pack according to claim 3, wherein the top surface of the desiccant storage groove abuts against the bottom surface of the upper cover, and a plurality of vent holes are formed in the side wall of the desiccant storage groove.
6. The battery pack according to claim 2, wherein the transparent plate is detachably mounted to the upper cover.
7. The battery pack according to claim 6, wherein the upper cover includes a mounting hole communicating with the receiving cavity, and the transparent plate is mounted at the mounting hole.
8. The battery pack of claim 1, wherein the dehumidification explosion-proof valve further comprises a water content detection device installed in the valve body.
9. The battery pack of claim 8, further comprising a BMS assembly mounted in the case and an alarm assembly in communication with the BMS assembly, the water content detecting device being in communication with the BMS assembly, and the alarm assembly being in communication with the BMS assembly.
10. The battery pack according to claim 9, wherein the dehumidifying explosion-proof valve is provided in plurality, and the dehumidifying explosion-proof valves are installed on the case and are respectively in communication with the BMS module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223281554.2U CN218783185U (en) | 2022-12-07 | 2022-12-07 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223281554.2U CN218783185U (en) | 2022-12-07 | 2022-12-07 | Battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218783185U true CN218783185U (en) | 2023-03-31 |
Family
ID=85712662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223281554.2U Active CN218783185U (en) | 2022-12-07 | 2022-12-07 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218783185U (en) |
-
2022
- 2022-12-07 CN CN202223281554.2U patent/CN218783185U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI712204B (en) | Power battery pack and vehicle | |
| JP7116263B2 (en) | Battery tray and power battery pack | |
| EP3905369A1 (en) | Battery tray and power battery pack | |
| CN111164794B (en) | Exhaust device for battery and battery comprising same | |
| US9636625B2 (en) | Drying device and battery system and motor vehicle having said drying device | |
| JPWO2012073438A1 (en) | Battery pack | |
| CN209845559U (en) | Moisture-proof device and electronic equipment | |
| CN113594623B (en) | Explosion-proof valve for battery pack | |
| KR20170103242A (en) | Cell module assembly improved in gas venting structure | |
| CN218783185U (en) | Battery pack | |
| CN213660534U (en) | Battery pack shell, battery pack and electric vehicle | |
| EP1489478B1 (en) | Method and apparatus for humidity control within a housing | |
| CN113571833A (en) | Battery pack and management method | |
| CN111779866A (en) | Novel explosion-proof balanced valve | |
| KR20210011370A (en) | Housing for electronic device protection | |
| CN113314794B (en) | Battery pack | |
| CN113764814A (en) | Ventilation valve structure | |
| CN111162217B (en) | Battery pack protection structure and battery pack | |
| KR102660789B1 (en) | Battery Pack with attachable element for checking flooded under water | |
| CN115458853A (en) | Battery system and vehicle | |
| CN112601408A (en) | Electrical apparatus box, controller and ECAS pneumatic system | |
| CN214755847U (en) | Motor, electric automobile and motor end cover | |
| CN215528813U (en) | Integrated motor and drive control system | |
| CN220138598U (en) | Energy storage device and electric equipment | |
| CN216413206U (en) | Directional pressure relief and dustproof explosion-proof valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |