CN106960928B - Battery case and power supply device - Google Patents
Battery case and power supply device Download PDFInfo
- Publication number
- CN106960928B CN106960928B CN201710345141.0A CN201710345141A CN106960928B CN 106960928 B CN106960928 B CN 106960928B CN 201710345141 A CN201710345141 A CN 201710345141A CN 106960928 B CN106960928 B CN 106960928B
- Authority
- CN
- China
- Prior art keywords
- shell
- battery
- groove
- cavity
- air
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- 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
Abstract
The invention provides a battery case and a power supply device. The battery shell comprises a shell body, a temperature sensing assembly, an air cylinder and a deformation rod; a closed cavity and a containing cavity for containing the battery module are arranged in the shell; the temperature sensing component is arranged on the side wall outside the shell so as to monitor the ambient temperature outside the shell; the inflator is arranged in the accommodating cavity and is communicated with the closed cavity so as to extract air or inject air into the closed cavity; the deformation rod is arranged on the side wall corresponding to the temperature sensing component in the accommodating cavity and is connected with the air cylinder so as to correspondingly extend or shrink according to the ambient temperature outside the shell, and the air cylinder is driven to extract or inject air into the closed cavity. The battery shell can exchange or isolate heat inside and outside the battery shell according to the external environment temperature change in extremely short time, so that the normal operation of the battery module is ensured, and the electric energy output stability, reliability and service life of the battery module are improved.
Description
Technical Field
The invention relates to the technical field of battery thermal management, in particular to a battery shell and a power supply device.
Background
With the rapid development of electronic technology, the use of pure electric vehicles or hybrid electric vehicles is becoming more popular, and the requirements of the pure electric vehicles or the hybrid electric vehicles on battery systems are also continuously improved. However, there are many technical problems to be solved in the battery system, in which the service life and capacity degradation of the battery module in the battery system are important problems.
The service life and capacity decay of the battery module are closely related to the temperature difference and the temperature rise of the battery cells in the battery module. In general, a large amount of heat is generated during the charge and discharge of the battery cell, and if the heat cannot be timely discharged, the temperature in the battery cell is continuously increased, so that the temperature difference in the battery cell is gradually increased. The battery cell is very sensitive to temperature change, and the change of the environmental temperature of the battery cell can lead the battery cell to be in a working environment with a larger temperature difference, so that the service life of the battery cell is influenced. Particularly in hot summer, the ground temperature is very high, and the working temperature of a battery monomer close to the ground in a pure electric or hybrid electric vehicle is far higher than that of a battery monomer far away from the ground, so that the temperature difference change at different positions in a battery system is extremely fast, the service life and the battery capacity of a battery are seriously influenced, and meanwhile, the discharge performance of the battery is also greatly disturbed, and the necessary charge and discharge requirements are hardly met.
In the prior art, the battery module in the above situation is treated by natural cooling or forced air cooling to improve the service life of the battery module. However, the processing mode is long in time consumption, poor in effect, low in electric energy output stability, poor in safety and reliability, and cannot effectively solve the problems of service life and capacity attenuation of the battery module.
Disclosure of Invention
In order to overcome the above-mentioned shortcomings in the prior art, the present invention aims to provide a battery case and a power supply device. The battery shell and the power supply device can exchange or isolate heat inside and outside the battery shell according to external environmental temperature change in extremely short time, ensure that the battery module in the battery shell can normally operate, and improve the problems of low electric energy output stability, poor safety and reliability, service life and capacity attenuation of the battery module in the prior art.
In terms of battery cases, a preferred embodiment of the present invention provides a battery case. The battery shell comprises a shell body, wherein a closed cavity and an accommodating cavity for accommodating the battery module are arranged in the shell body;
the battery shell also comprises a temperature sensing component, an inflator and a deformation rod;
the temperature sensing component is arranged on the side wall outside the shell so as to monitor the ambient temperature outside the shell;
the inflator is arranged in the accommodating cavity and is communicated with the closed cavity so as to extract air or inject air into the closed cavity;
the deformation rod is arranged on the side wall of the accommodating cavity corresponding to the temperature sensing component and is connected with the air cylinder so as to correspondingly extend or shrink according to the ambient temperature outside the shell monitored by the temperature sensing component and drive the air cylinder to extract or inject air into the closed cavity.
In a preferred embodiment of the present invention, the above-mentioned closed chamber is disposed at the bottom of the accommodating cavity, the temperature sensing component includes a heat pipe, the heat pipe includes a first portion and a second portion, the first portion is connected with the second portion to form the heat pipe, where the first portion contacts with a side wall of the housing, which is close to the closed chamber, and the second portion contacts with a side wall of the housing, which is close to the accommodating cavity, and the heat pipe conducts, through the second portion, the ambient temperature of the housing, which is close to the closed chamber and is monitored by the first portion, to the deformation rod.
In a preferred embodiment of the present invention, the deformation rod is disposed on the inner wall of the accommodating cavity at a position corresponding to the second portion of the heat pipe, and the first end of the deformation rod is fixed on the inner wall of the accommodating cavity, and the second end of the deformation rod can correspondingly stretch or shrink according to the received environmental temperature change outside the housing.
In a preferred embodiment of the present invention, the deformation rod is connected to the air cylinder through a lever, where the air cylinder includes a cylinder, a piston and a sliding rod, the cylinder is communicated with the closed chamber through an air flow pipe, the piston is disposed in the cylinder, one end of the sliding rod is rotatably connected to the piston, the other end of the sliding rod is rotatably connected to one end of the lever, a sliding groove with an extension direction parallel to the lever is formed in the other end of the lever, and the second end of the deformation rod can rotate and slide relative to the lever through a rotating shaft accommodated in the sliding groove, so that when the second end of the deformation rod stretches or contracts, the air cylinder is driven by the lever to perform air extraction or air injection on the closed chamber.
In a preferred embodiment of the present invention, the deformation rod is made of a thermal expansion and contraction material.
In a preferred embodiment of the present invention, the housing includes a first groove body provided with a receiving groove, and a cover plate matched with the first groove body, and the cover plate covers the first groove body to form the receiving cavity.
In a preferred embodiment of the present invention, the housing further includes a second groove body provided with a ventilation groove, the second groove body is matched with the first groove body, the side wall of the first groove body away from the accommodating groove faces the ventilation groove, and the first groove body is fixed with the second groove body by welding, so as to form the closed chamber.
In a preferred embodiment of the present invention, a plurality of partitions are disposed in the closed chamber, and the closed chamber is isolated by the plurality of partitions to form a circuitous air circulation channel.
In a preferred embodiment of the present invention, the plurality of the partition boards are disposed in the ventilation groove and are integrally formed with the second groove body.
As for the power supply device, a preferred embodiment of the present invention provides a power supply device. The power supply device comprises a plurality of battery modules and the battery shell, and the plurality of battery modules are arranged in the accommodating cavity of the battery shell to form the power supply device.
Compared with the prior art, the battery shell and the power supply device provided by the preferred embodiment of the invention have the following beneficial effects: the battery shell and the power supply device can exchange or isolate heat inside and outside the battery shell according to external environmental temperature change in extremely short time, ensure that the battery module in the battery shell can normally operate, and improve the problems of low electric energy output stability, poor safety and reliability, service life and capacity attenuation of the battery module in the prior art. Specifically, the battery shell is used for accommodating the battery module through an accommodating cavity in the shell; the battery shell monitors the ambient temperature outside the shell through a temperature sensing component arranged on the side wall outside the shell; the battery shell is communicated with the closed cavity of the shell and is arranged in the accommodating cavity to extract air or inject air into the closed cavity; the battery shell correspondingly stretches or contracts through the deformation rod which is arranged on the side wall corresponding to the temperature sensing component in the accommodating cavity and is connected with the air cylinder according to the environment temperature outside the shell monitored by the temperature sensing component, so that the air cylinder is driven to perform air extraction or air injection on the airtight cavity, heat exchange inside and outside the battery shell is performed or isolated in extremely short time, the temperature in the accommodating cavity ensures that the battery module in the battery shell can normally operate, and the problems of low electric energy output stability, poor safety and reliability, long service life and capacity attenuation of the battery module in the prior art are solved.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope of the claims, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an assembly schematic diagram of a battery case according to a preferred embodiment of the present invention.
Fig. 2 is a schematic view of a battery case shown in fig. 1 according to a preferred embodiment of the present invention.
Fig. 3 is a schematic view of another structure of the battery case shown in fig. 1 according to the preferred embodiment of the present invention.
Fig. 4 is a partial enlarged view of the lever shown in fig. 3 at section I.
Fig. 5 is a schematic structural view of the second tank shown in fig. 1 according to the preferred embodiment of the present invention.
Icon: 100-battery housing; 110-a housing; 111-cover plate; 112-a first tank; 113-a second tank; 120-a temperature sensing component; 121-a first part; 122-a second portion; 130-inflator; 131-a cylinder; 132-a piston; 133-a sliding bar; 134-air flow pipe; 140-deformation bar; 141-a first end; 142-a second end; 150-lever; 151-a chute; 114-separator.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1 and fig. 2 in combination, fig. 1 is an assembly schematic diagram of a battery case 100 according to a preferred embodiment of the present invention, and fig. 2 is a structural schematic diagram of the battery case 100 shown in fig. 1 according to a preferred embodiment of the present invention. In the embodiment of the invention, the battery housing 100 is used for accommodating the battery module, and exchanging heat between the inside and the outside of the battery housing 100 is performed or isolated according to the ambient temperature outside the battery housing 100 in a very short time, so that the battery module in the battery housing 100 can normally operate, and the problems of low electric energy output stability, poor safety and reliability, service life and capacity attenuation of the battery module in the prior art are improved. Specifically, in the present embodiment, the battery case 100 includes a case 110, a temperature sensing assembly 120, an air cylinder 130, and a deformation rod 140. The housing 110 is provided with a closed chamber and an accommodating cavity, wherein the accommodating cavity is used for accommodating the battery module, and the housing 110 accommodates the battery module through the accommodating cavity. The temperature sensing component 120 is used for monitoring the ambient temperature outside the casing 110, the air cylinder 130 is communicated with the closed cavity to perform air extraction or air injection in the closed cavity, the deformation rod 140 is used for correspondingly extending or contracting according to the ambient temperature outside the casing 110 monitored by the temperature sensing component 120, and driving the air cylinder 130 to perform air extraction or air injection in the closed cavity to perform or isolate heat exchange inside and outside the battery casing 100, so that the normal operation of the battery module in the casing 110 is ensured, and the problems of low electric energy output stability, poor safety and reliability, service life and capacity attenuation of the battery module in the prior art are improved. In this embodiment, the air cylinder 130 and the deformation rod 140 are disposed in the accommodating cavity, the temperature sensing assembly 120 is disposed outside the housing 110, and the deformation rod 140 receives the environmental temperature information monitored by the temperature sensing assembly 120 through heat conduction, so as to ensure that the sealing level of the battery case 100 may be not lower than the IP67 level.
In this embodiment, the closed chamber is disposed at the bottom of the accommodating cavity, and the temperature sensing component 120 is disposed on the side wall outside the housing 110, so as to monitor the ambient temperature outside the housing 110. In this embodiment, the temperature sensing component 120 includes a first portion 121 for monitoring an ambient temperature outside the housing 110 near the closed chamber, and a second portion 122 for transmitting the ambient temperature outside the housing 110 near the closed chamber, which is monitored by the first portion 121, to the deformation rod 140. Specifically, the first portion 121 is connected to the second portion 122 to form the temperature sensing component 120, and the first portion 121 contacts a side wall of the housing 110, which is close to the closed chamber, so as to monitor an ambient temperature of the housing 110; the second portion 122 contacts with a side wall of the housing 110, which is close to the accommodating cavity, so that the ambient temperature of the housing 110, which is detected by the first portion 121 and is close to the sealed cavity, is conducted to the deformation rod 140, which is disposed in the accommodating cavity, through the second portion 122, so that the deformation rod 140 obtains the ambient temperature of the housing 110, and then correspondingly stretches or contracts, thereby driving the air cylinder 130 to perform air extraction or air injection on the sealed cavity, thereby realizing or isolating heat exchange between the inside and the outside of the battery housing 100, and ensuring that the battery module in the battery housing 100 can normally operate.
In this embodiment, the temperature sensing component 120 is a device with thermal superconducting capability, and the temperature sensing component 120 may be, but is not limited to, a heat pipe, an insulating thermal conductive silica gel pad, or the like. In one implementation of this embodiment, the temperature sensing component 120 is preferably a heat pipe.
In this embodiment, the deformation rod 140 is disposed on a sidewall of the accommodating cavity corresponding to the temperature sensing component 120. In particular, the deformation rod 140 is disposed on a sidewall of the receiving cavity corresponding to the second portion 122 of the temperature sensing assembly 120, the position of the deformation rod 140 on the side wall of the accommodating cavity corresponds to the position of the second portion 122 outside the housing 110, so as to receive the ambient temperature outside the housing 110 monitored by the first portion 121 transmitted by the second portion 122 in a heat conduction manner.
In this embodiment, the deformation rod 140 includes a first end 141 and a second end 142, and the first end 141 and the second end 142 are two ends of the deformation rod 140 respectively. The first end 141 of the deformation rod 140 is fixed on the sidewall of the accommodating cavity, and the second end 142 of the deformation rod 140 can correspondingly stretch or shrink according to the received environmental temperature change outside the housing 110.
In this embodiment, the deformation rod 140 may be horizontally disposed in the accommodating cavity, or may be vertically disposed in the accommodating cavity relative to the bottom of the accommodating cavity, and the specific setting manner of the deformation rod 140 may be different according to the requirements. The first end 141 of the deformation rod 140 may be an end of the deformation rod 140 near the bottom of the accommodating cavity, or may be an end of the deformation rod 140 away from the bottom of the accommodating cavity, and the setting definitions of the first end 141 and the second end 142 of the deformation rod 140 may be different according to the requirements.
In this embodiment, the deformation rod 140 may be made of a material that expands with heat and contracts with cold, or may be made of a material that expands with heat and contracts with cold. In one implementation of this embodiment, the deformation rod 140 is preferably made of a material that expands with heat and contracts with cold.
Referring to fig. 2, in the present embodiment, the first end 141 of the deformation rod 140 is an end of the deformation rod 140 near the closed chamber, the second end 142 is another end of the deformation rod 140, the first end 141 is fixed on the inner wall of the accommodating cavity, and the deformation rod 140 may be directly connected with the air cylinder 130 to realize or isolate heat exchange between the inside and the outside of the battery case 100. In this embodiment, the air cylinder 130 includes a cylinder 131, a piston 132, and a sliding rod 133. The cylinder 131 is of a hollow columnar structure, and the cylinder 131 is communicated with the closed cavity through an air flow pipe 134. Specifically, the present invention relates to a method for manufacturing a semiconductor device. One end of the air flow pipe 134 communicates with the closed chamber, and the other end of the air flow pipe 134 communicates with the cylinder 131 so that the cylinder 131 communicates with the closed chamber. The piston 132 is disposed in the cylinder 131, one side of the piston 132 away from the air flow tube 134 is connected with one end of the sliding rod 133, and the other end of the sliding rod 133 is fixedly connected with the second end 142 of the deformation rod 140, so that when the deformation rod 140 correspondingly stretches or contracts according to the environmental temperature change outside the battery case 100 monitored by the temperature sensing assembly 120, the second end 142 drives the sliding rod 133 and the piston 132 to slide in the cylinder 131, thereby performing air extraction or air injection on the closed chamber through the cylinder 131 and the air flow tube 134.
In this embodiment, the deformation rod 140 is made of a material that expands with heat and contracts with cold, when the deformation rod 140 is heated, the second end 142 stretches due to expansion, and the second end 142 drives the sliding rod 133 and the piston 132 to slide in a direction away from the cylinder 131, so that the air cylinder 130 performs air extraction, so as to isolate the heat exchange between the accommodating cavity and the outside; when the deformation rod 140 is cooled, the second end 142 contracts, and the second end 142 drives the sliding rod 133 and the piston 132 to slide towards the cylinder 131, so that the air cylinder 130 performs air injection, and heat exchange between the accommodating cavity and the outside is realized, thereby ensuring that the battery module in the accommodating cavity can normally operate.
Referring to fig. 3, another structural diagram of the battery case 100 shown in fig. 1 according to a preferred embodiment of the present invention is shown. In this embodiment, the first end 141 of the deformation rod 140 is an end of the deformation rod 140 away from the closed chamber, the second end 142 is another end of the deformation rod 140, the first end 141 is fixed on the inner wall of the accommodating cavity, and the deformation rod 140 may be connected with the air cylinder 130 through the lever 150 to realize or isolate heat exchange between the inside and the outside of the battery case 100. The cylinder 131 is communicated with the closed chamber through an air flow pipe 134, one side, away from the air flow pipe 134, of the piston 132 arranged in the cylinder 131 is rotationally connected with one end of the sliding rod 133, the other end of the sliding rod 133 is rotationally connected with one end of the lever 150, the other end of the lever 150 is connected with the second end 142 of the deformation rod 140, and the second end 142 can rotate and slide relative to the lever 150, so that when the second end 142 of the deformation rod 140 stretches or contracts, the lever 150 drives the air cylinder 130 to perform air extraction or air injection on the closed chamber.
Specifically, please refer to fig. 4, which is a partial enlarged view of the lever 150 shown in fig. 3 at the I portion. In this embodiment, a chute 151 extending in parallel with the lever 150 is formed at an end of the lever 150 away from the slide bar 133. The sliding groove 151 contains a rotating shaft, the second end 142 of the deformation rod 140 may be rotatably connected with the lever 150 through the rotating shaft, and the rotating shaft may slide in the sliding groove 151, so that when the second end 142 of the deformation rod 140 is extended or contracted, the rotating shaft will slide in the sliding groove 151 along a direction away from the sliding rod 133 or a direction close to the sliding rod 133, so that the lever 150 rotates around the fulcrum, and accordingly drives the air cylinder 130 to perform air extraction or air injection on the closed chamber, thereby isolating or realizing heat exchange between the inside and the outside of the battery case 100, and ensuring that the battery module in the accommodating cavity can work normally.
In this embodiment, the distance between the end of the lever 150 connected to the sliding rod 133 and the fulcrum is greater than the distance between the end of the lever 150 connected to the deformation rod 140 and the fulcrum. The positions of the fulcrums in the accommodating cavity can be set differently according to requirements.
In this embodiment, the housing 110 includes a first groove 112 provided with a receiving groove and a cover plate 111 matched with the first groove 112, the battery module is disposed in the receiving groove, and the cover plate 111 faces the receiving groove and covers the first groove 112 to form the receiving cavity and realize the receiving of the battery module. In an implementation manner of this embodiment, when the cover plate 111 is covered on the first groove body 112, the cover plate 111 may be fixed to the first groove body 112 by adhesion or welding, so as to ensure that a sealing level of a receiving cavity formed by the cover plate 111 and the first groove body 112 is not lower than an IP67 level.
In this embodiment, the housing 110 further includes a second groove 113 provided with a ventilation groove, the first groove 112 and the second groove 113 are matched with each other, the side wall of the first groove 112 away from the accommodating groove faces the ventilation groove, and the first groove 112 is fixed with the second groove 113 by welding, so as to form the closed chamber, where the sealing grade of the closed chamber is not lower than the IP67 grade. In this embodiment, the side wall of the first groove 112 away from the accommodating groove is the side wall of the first groove 112 away from the cover 111, so that the second groove 113 is located near the bottom surface in a pure electric or hybrid electric vehicle, and the closed chamber is disposed at the bottom of the accommodating cavity.
Referring to fig. 5, a schematic structural diagram of the second tank 113 shown in fig. 1 according to a preferred embodiment of the present invention is shown. In this embodiment, a plurality of partitions 114 may be disposed in the closed chamber, and a plurality of partitions 114 are disposed in the ventilation grooves of the second groove 113, where the closed chamber is isolated from each other by a plurality of partitions 114 to form a circuitous air circulation channel for air circulation. In this embodiment, the air flow tube 134 communicates with the air flow channel at one end of the closed chamber to allow the air pump 130 to pump or inject air into the closed chamber.
In this embodiment, the plurality of partition boards 114 and the second groove 113 may be manufactured by integrally forming, or may be manufactured by welding, adhering, or the like, so that the plurality of partition boards 114 are fixedly disposed in the ventilation grooves of the second groove 113. In one implementation of this embodiment, the plurality of partitions 114 and the second groove 113 are preferably manufactured by integrally molding.
In this embodiment, the first groove 112, the second groove 113 and the cover 111 are all made of aluminum alloy, so as to facilitate heat dissipation of the battery module in the accommodating cavity formed by the cover 111 in cooperation with the first groove 112.
In the present invention, the preferred embodiment of the present invention also provides a power supply device applied to a pure electric or hybrid electric vehicle. The power supply device comprises a plurality of battery modules and the battery shell 100, and the plurality of battery modules are arranged in the accommodating cavity of the battery shell 100 to form the power supply device. Specifically, a plurality of the battery modules are disposed in the receiving recess of the first groove 112.
In summary, in the battery case and the power supply device provided by the preferred embodiment of the invention, the battery case and the power supply device can exchange or isolate heat inside and outside the battery case according to external environmental temperature changes in a very short time, ensure that the battery module in the battery case can normally operate, and solve the problems of low electric energy output stability, poor safety and reliability, service life and capacity attenuation of the battery module in the prior art. Specifically, the battery shell is used for accommodating the battery module through an accommodating cavity in the shell; the battery shell monitors the ambient temperature outside the shell through a temperature sensing component arranged on the side wall outside the shell; the battery shell is communicated with the closed cavity of the shell and is arranged in the accommodating cavity to extract air or inject air into the closed cavity; the battery shell correspondingly stretches or contracts through the deformation rod which is arranged on the side wall corresponding to the temperature sensing component in the accommodating cavity and is connected with the air cylinder according to the environment temperature outside the shell monitored by the temperature sensing component, so that the air cylinder is driven to perform air extraction or air injection on the airtight cavity, heat exchange inside and outside the battery shell is performed or isolated in extremely short time, the temperature in the accommodating cavity ensures that the battery module in the battery shell can normally operate, and the problems of low electric energy output stability, poor safety and reliability, long service life and capacity attenuation of the battery module in the prior art are solved.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The battery shell is characterized by comprising a shell, wherein a closed cavity and a containing cavity for containing a battery module are arranged in the shell, and the closed cavity is arranged at the bottom of the containing cavity;
the battery shell also comprises a temperature sensing component, an inflator and a deformation rod;
the temperature sensing assembly is arranged on the side wall outside the shell so as to monitor the ambient temperature outside the shell, the temperature sensing assembly comprises a heat pipe formed by connecting a first part and a second part, the first part is in contact with the side wall, close to the closed cavity, outside the shell, the second part is in contact with the side wall, close to the accommodating cavity, outside the shell, the heat pipe is used for conducting the ambient temperature, close to the closed cavity, outside the shell, monitored by the first part to the deformation rod through the second part;
the air cylinder is arranged in the accommodating cavity and is communicated with the closed cavity so as to extract air or inject air into the closed cavity, the air cylinder comprises a cylinder body, a piston and a sliding rod, the cylinder body is communicated with the closed cavity through an air flow pipe, the piston is arranged in the cylinder body, and one end of the sliding rod is connected with the piston;
the deformation rod is arranged at a position on the inner wall of the accommodating cavity, corresponding to the second part of the heat pipe, the first end of the deformation rod is fixed on the inner wall of the accommodating cavity, the second end of the deformation rod is connected with the other end of the sliding rod, which is far away from the piston, and the second end of the deformation rod can correspondingly stretch or shrink according to the received change of the ambient temperature outside the shell, so as to drive the air cylinder to perform air extraction or air injection on the closed cavity.
2. The battery case according to claim 1, wherein the second end of the deformation rod is connected to a sliding rod included in the air cylinder through a lever, one end of the sliding rod is rotatably connected to the piston, the other end of the sliding rod is rotatably connected to one end of the lever, a sliding groove having an extending direction parallel to the lever is formed in the other end of the lever, and the second end of the deformation rod is rotatable and slidable with respect to the lever through a rotating shaft accommodated in the sliding groove, so that the air cylinder is driven to perform air extraction or air injection into the closed chamber through the lever when the second end of the deformation rod is extended or contracted.
3. The battery case according to claim 1 or 2, wherein the deformation rod is manufactured using a heat expansion and cold contraction material.
4. The battery case according to claim 1, wherein the housing includes a first groove provided with a receiving groove and a cover plate matched with the first groove, and the cover plate covers the first groove to form the receiving cavity.
5. The battery case according to claim 4, wherein the housing further comprises a second groove body provided with a ventilation groove, the second groove body and the first groove body are matched with each other, a side wall of the first groove body away from the accommodating groove faces the ventilation groove, and the first groove body is fixed with the second groove body by welding to form the closed chamber.
6. The battery housing of claim 5, wherein a plurality of baffles are disposed within the enclosed chamber, the enclosed chamber being isolated by a plurality of baffles to form a circuitous air flow path.
7. The battery housing of claim 6, wherein a plurality of said separators are disposed within said vent grooves and integrally formed with said second channel.
8. A power supply device, characterized in that the power supply device comprises a plurality of battery modules and the battery housing of any one of claims 1-7, and the plurality of battery modules are arranged in a containing cavity of the battery housing to form the power supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710345141.0A CN106960928B (en) | 2017-05-16 | 2017-05-16 | Battery case and power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710345141.0A CN106960928B (en) | 2017-05-16 | 2017-05-16 | Battery case and power supply device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106960928A CN106960928A (en) | 2017-07-18 |
| CN106960928B true CN106960928B (en) | 2023-07-18 |
Family
ID=59481841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710345141.0A Active CN106960928B (en) | 2017-05-16 | 2017-05-16 | Battery case and power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106960928B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112103991B (en) * | 2020-08-20 | 2022-03-29 | 国网浙江省电力有限公司嘉兴供电公司 | Multi-supply-area flexible interconnection system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3038659B1 (en) * | 1999-05-16 | 2000-05-08 | 幹三 笠松 | Method and device for preventing explosion of secondary battery |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8443922B2 (en) * | 2009-10-07 | 2013-05-21 | The Boeing Company | Containment device and method for containing energy storage devices |
| EP2808934B1 (en) * | 2012-01-24 | 2017-04-12 | NGK Insulators, Ltd. | Power storage apparatus and method of operating power storage apparatus |
| JP6191444B2 (en) * | 2013-12-24 | 2017-09-06 | 株式会社デンソー | Battery pack |
| CN206711949U (en) * | 2017-05-16 | 2017-12-05 | 华霆（合肥）动力技术有限公司 | Battery case and electric supply installation |
-
2017
- 2017-05-16 CN CN201710345141.0A patent/CN106960928B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3038659B1 (en) * | 1999-05-16 | 2000-05-08 | 幹三 笠松 | Method and device for preventing explosion of secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106960928A (en) | 2017-07-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101443829B1 (en) | Battery System and Method for Cooling the Battery System | |
| KR101256078B1 (en) | Charging appratus | |
| KR101526667B1 (en) | Device for cooling and heating battery module of vehicle | |
| CN105900260A (en) | Battery, casing structure of battery, battery core protection method, mobile device and kit thereof | |
| CN102856516A (en) | Power supply device and vehicle including the same | |
| CN102414907A (en) | Cooling manifold and production method therefor | |
| JP2010539667A (en) | Temperature controlled battery device and method for temperature regulating battery device | |
| CN106856230A (en) | Battery module | |
| CN204966547U (en) | Battery and shell structure , movable platform and external member thereof | |
| CN105826499A (en) | Lithium battery pack utilizing phase-change material to realize temperature control | |
| KR102498014B1 (en) | Battery system with management module | |
| KR20130064704A (en) | Radiant heat plate for battery cell | |
| CN106960928B (en) | Battery case and power supply device | |
| CN212434707U (en) | Blade battery package thermal management system based on micro heat pipe array | |
| CN103367835A (en) | Power battery thermal management system based on loop heat pipes | |
| CN214900632U (en) | Heat radiation structure of power adapter | |
| CN201528027U (en) | Radiating device of battery pack | |
| CN209667011U (en) | A kind of vehicle-mounted distribution box of rapid cooling | |
| US20100068611A1 (en) | Power supply device | |
| CN103500864A (en) | Sealed power storage battery module | |
| CN206711949U (en) | Battery case and electric supply installation | |
| CN116315268A (en) | Immersed cooling energy storage battery cabinet | |
| CN213716723U (en) | Direct current absorption protective capacitor | |
| CN113410538B (en) | Liquid cooling battery package structure of trompil foamed aluminum heat dissipation runner | |
| CN115101850A (en) | Intelligent adjusting battery bin of new energy automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 Anhui Hefei economic and Technological Development Zone, Xin Xin Road, No. 62 power battery factory Applicant after: Huating (Hefei) Power Technology Co.,Ltd. Address before: 230601 No. 26, No. 5, Tsing Luen Road, Hefei economic and Technological Development Zone, Anhui Applicant before: Huating (Hefei) Power Technology Co.,Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |