CN216720073U - Battery and electric device - Google Patents
Battery and electric device Download PDFInfo
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- CN216720073U CN216720073U CN202220198567.4U CN202220198567U CN216720073U CN 216720073 U CN216720073 U CN 216720073U CN 202220198567 U CN202220198567 U CN 202220198567U CN 216720073 U CN216720073 U CN 216720073U
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- 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
- H01M10/613—Cooling or keeping cold
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- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- 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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
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- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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- 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
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present application relates to a battery and a power consumption device. A battery comprises a box body and a battery module, wherein the box body comprises a lower box body and an upper box body. The lower box body is provided with a containing cavity for containing the battery module and an air inlet cavity which is positioned on one side of the lower box body and communicated with the containing cavity. The upper box body covers the lower box body, and an air outlet channel communicated with the containing cavity is arranged on the upper box body. The battery module is provided with a plurality of air guide passages communicated with the air inlet cavity and the air outlet passage, so that air flow flowing into the air inlet cavity can flow to the air outlet passage through the plurality of air guide passages. In this battery, the air inlet chamber is formed in lower box, and the air-out passageway is formed in last box, need not additionally set up the forced air cooling pipeline, has saved the manufacturing cost of forced air cooling pipeline, is favorable to reducing the manufacturing cost of battery to a certain extent.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery and an electric device.
Background
The battery generally includes a plurality of batteries that are in groups together, and the battery generally adopts the air-cooled mode to dispel the heat, and this battery specifically includes the casing and sets up the air-cooled pipeline in the casing, utilizes this air-cooled pipeline to dispel the heat to the battery module in the casing, and however, this air-cooled pipeline can lead to this air-cooled battery's manufacturing cost higher.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide a battery and an electric device in order to solve the problem of high manufacturing cost of the conventional battery.
According to an aspect of the present application, there is provided a battery including a case including a lower case and an upper case, and a battery module. The lower box body is provided with a containing cavity for containing the battery module and an air inlet cavity which is positioned on one side of the lower box body and communicated with the containing cavity. The upper box body covers the lower box body, and an air outlet channel communicated with the containing cavity is arranged on the upper box body. The battery module is provided with a plurality of air guide passages communicated with the air inlet cavity and the air outlet passage, so that air flow flowing into the air inlet cavity can flow to the air outlet passage through the plurality of air guide passages.
In the technical scheme of this application, the air current that flows into the air inlet chamber is at the in-process that flows to the air-out passageway, the air current can flow in and hold the intracavity, and through a plurality of wind-guiding passageways, in order to carry out the heat transfer with battery module, the air current after the completion heat transfer can flow to the air-out passageway, and flow out outside the battery from the air-out passageway, just so air current with suitable temperature carries out the heat management to battery module, and this air inlet chamber is formed in lower box, the air-out passageway is formed in last box, need not additionally set up the forced air cooling pipeline, the manufacturing cost of forced air cooling pipeline has been saved, be favorable to reducing the manufacturing cost of battery to a certain extent.
In one embodiment, the battery module comprises a plurality of air deflectors arranged at intervals, and a single battery arranged between two adjacent air deflectors. And an air guide passage is arranged between the two opposite sides of the battery monomer and the adjacent air guide plates. The air current that gets into and hold the intracavity can carry out the heat transfer with a plurality of battery monomer, can carry out the thermal management to battery module better, also can improve the effect of thermal management.
In one embodiment, the air guide passage comprises a plurality of sub-guide air ducts, a first end of each sub-guide air duct is communicated with the air inlet cavity, and a second end of each sub-guide air duct is communicated with the air outlet channel. The air flow entering the accommodating cavity can respectively pass through the plurality of air guide passages and can flow into the plurality of sub-air guide air ducts of each air guide passage, and the air flow can exchange heat with the battery monomer more uniformly and can conduct heat management on the battery module better.
In one embodiment, a plurality of first flow guiding ribs are arranged at intervals on one side of the air deflector facing the battery unit, and a plurality of sub flow guiding air channels are defined by the one side of the battery unit facing the air deflector and the plurality of first flow guiding ribs. The air flow passing through the plurality of sub-diversion air ducts can exchange heat with the single battery, and the heat management effect can be improved.
In one embodiment, two first limiting portions for limiting the battery unit are further disposed on one side of the air guide plate facing the battery unit, the first limiting portions are located on one sides of the first ends of the first flow guide ribs to define, with the battery unit, a converging channel communicated with the second ends of the plurality of sub flow guide air channels, and the converging channel is communicated with the air outlet channel. The air flow passing through the plurality of sub-guide air ducts of each air guide passageway can exchange heat with the adjacent single batteries and then flows into the corresponding gathering channels, and the air flow flowing into the plurality of gathering channels can flow into the air outlet channel.
In one embodiment, the first flow guide rib comprises a first section extending along the first direction and a second section which is connected with the first section in an arc shape and extends along the second direction. The first end of the first flow guide rib is the end of the second section far away from the first section, and the first limiting part is positioned at one side of the second section of the first flow guide rib close to the edge of the air guide plate along the second direction. The first direction and the second direction are intersected with each other and are parallel to the air deflector. Therefore, the air flow flowing into the air guide passageway can flow along the first flow guide ribs, the first flow guide ribs can prolong the contact time of the air flow and the battery monomer, and the heat management effect can be improved.
In one embodiment, the accommodating cavity and the corresponding air inlet cavity are arranged in a stacked mode and are communicated with each other, and one side of the lower box body is provided with an air inlet communicated with the air inlet cavity. The air current passes through the air intake and gets into the air inlet intracavity, and the reentrant holds the intracavity to carry out the heat transfer with the battery module that holds the intracavity, accomplish the heat transfer after, can follow the air-out passageway and flow outside the battery.
In one embodiment, the lower box body is provided with a supporting plate for separating the accommodating cavity from the air inlet cavity, the battery module is supported on one side of the supporting plate, and the supporting plate is provided with an opening for communicating the air guide passageway with the air inlet cavity. So, can make battery module place the intracavity that holds of box under steadily, can make the air current that flows into in the air inlet intracavity again can flow to the air-out passageway through a plurality of wind-guiding passageways.
In one embodiment, the air inlet cavity is provided with a first side wall opposite to the opening, the air inlet is arranged on one side wall of the air inlet cavity adjacent to the first side wall, and the first side wall is provided with at least two second flow guide ribs. Wherein, the extending direction of the second flow guide rib is parallel to the air inlet direction of the air inlet. The air current that flows along the air inlet direction of air intake can flow along second water conservancy diversion rib to make the air current that flows into in the air inlet intracavity can flow into in a plurality of wind-guiding passageways respectively along second water conservancy diversion rib, in order to carry out the heat transfer with a plurality of battery monomer.
In one embodiment, one end of the second flow guide rib facing the air inlet is provided with a convergent part, and the width size of the orthographic projection of the convergent part on the first side wall is gradually reduced along the air inlet direction. The width of the orthographic projection of the convergence part on the first side wall is the size of the orthographic projection of the convergence part on the first side wall in the direction perpendicular to the extending direction of the second flow guide ribs. The convergence part can reduce the resistance of the air flow entering the air inlet cavity, and the heat management efficiency can be improved to a certain extent.
In one embodiment, the lower box body is provided with an air inlet groove at one side, and the air inlet groove is provided with an open end and a closed end opposite to the open end. The air inlet is arranged at the closed end of the air inlet tank, and the air inlet tank is also provided with a flow guide surface connected between the closed end and the open end and used for guiding the airflow entering the air inlet tank from the open end to the air inlet. The arranged flow guide surface can guide the air flow entering the air inlet groove from the open end to the air inlet, and the flow guide effect is achieved.
According to another aspect of the present application, there is provided an electric device including the battery described above.
Drawings
Fig. 1 shows a schematic structural diagram of a battery in an embodiment of the present application;
fig. 2 is a schematic structural view illustrating a lower case and a battery module according to an embodiment of the present application;
fig. 3 is a schematic structural view illustrating a battery module according to an embodiment of the present application;
fig. 4 is a schematic structural view illustrating an air deflector according to an embodiment of the present application;
fig. 5 shows a schematic structural view (first view) of two air deflectors according to an embodiment of the present disclosure;
fig. 6 shows a schematic structural view (second view angle) of two air deflectors according to an embodiment of the present application;
fig. 7 shows a schematic structural diagram of the lower box in an embodiment of the present application.
In the figure: 10. a battery; 110. a battery module; 111. a wind guide passageway; 1111. a sub-diversion air duct; 112. an air deflector; c. a first side surface; d. a second side surface; 1121. a first flow guide rib; a. a first stage; b. a second stage; 1122. a first limiting part; 1123. a second limiting part; 1124. a third limiting part; 1125. a first connection portion; 1126. a first mating portion; 1127. a second mating portion; 1128. a third mating portion; 1129. a fourth mating portion; 113. a convergence channel; 114. closing the plate; 120. a lower box body; 121. an accommodating chamber; 122. an air inlet cavity; 1221. a first side wall; 123. an air inlet; 124. a support plate; 1241. an opening; 125. a second flow guide rib; 1251. a converging section; 1252. an air inlet channel; 126. an air inlet groove; 1261. an open end; 1262. a flow guide surface; e. a first drainage surface; f. a second drainage surface; 130. an upper box body; 131. an air outlet channel.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
In the description of the present application, it is to 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," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The battery generally includes a plurality of batteries that are in groups together, and the battery generally adopts the air-cooled mode to dispel the heat, and this battery specifically includes the casing and sets up the air-cooled pipeline in the casing, utilizes this air-cooled pipeline to dispel the heat to the battery module in the casing, and however, this air-cooled pipeline can lead to this air-cooled battery's manufacturing cost higher.
The inventors of the present application found that the reason why the manufacturing cost of the conventional air-cooled battery is high is that: the air-cooled pipeline is independent of the shell, so that additional manufacturing cost is increased, and the manufacturing cost of the air-cooled battery is higher.
In order to solve the problem that the manufacturing cost of the traditional air-cooled battery is high, the inventor of the application designs a battery through deep research, and the battery comprises a box body and a battery module, wherein the box body comprises an upper box body and a lower box body, and the lower box body is provided with a containing cavity for containing the battery module and an air inlet cavity communicated with the containing cavity. The lower box is equipped with and holds the air-out passageway that the chamber is linked together, so, air current accessible air inlet chamber flows into in the lower box, and then flow in and hold the intracavity, can carry out the heat transfer with the battery module that holds the intracavity, the air current after accomplishing the heat transfer can be followed the air-out passageway and flowed out outside the battery, air current with suitable temperature carries out the heat pipe reason to battery module like this, and this air inlet chamber is formed in the lower box, the air-out passageway is formed in the lower box, need not additionally set up the forced air cooling pipeline, the manufacturing cost of forced air cooling pipeline has been saved, be favorable to reducing the manufacturing cost of battery to a certain extent.
The battery disclosed in the embodiment of the present application can be used in electric devices such as vehicles, ships or aircrafts, but not limited thereto. The powered device may be, but is not limited to, a cell phone, tablet, laptop, electronic toy, electric tool, battery car, electric car, ship, spacecraft, and the like. The electric toy may include a stationary or mobile electric toy, such as a game machine, an electric car toy, an electric ship toy, an electric airplane toy, and the like, and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, and the like. The power supply system with the battery and the like can be used, so that the power supply system can provide electric drive for the power utilization device, external impact force can be effectively prevented from being transmitted to the battery monomer or the battery module, and the battery monomer or the battery module can be effectively protected. Fig. 1 shows a schematic structural diagram of a battery 10 in an embodiment of the present application.
In some embodiments of the present application, referring to fig. 1 optionally in combination with fig. 2 and fig. 3, a battery 10 provided in an embodiment of the present application includes a case and a battery module 110, where the case includes a lower case 120 and an upper case 130.
The lower case 120 is provided with a receiving cavity 121 for receiving the battery module 110, and an air inlet cavity 122 located at one side of the lower case 120 and communicated with the receiving cavity 121. The battery module 110 is accommodated in the accommodating cavity 121, and the airflow entering the air inlet cavity 122 can flow into the accommodating cavity 121, so that the airflow can exchange heat with the battery module 110 in the accommodating cavity 121 to perform thermal management on the battery module 110.
The upper box 130 covers the lower box 120, and the upper box 130 is provided with an air outlet channel 131 communicated with the accommodating cavity 121. The battery module 110 is provided with a plurality of air guide passages 111 communicating the air inlet cavity 122 and the air outlet channel 131, so that the air flowing into the air inlet cavity 122 can flow to the air outlet channel 131 through the plurality of air guide passages 111. Thus, the air flow flowing into the air inlet cavity 122 flows into the accommodating cavity 121 in the process of flowing to the air outlet channel 131, and flows through the plurality of air guide passages 111 to exchange heat with the battery module 110, the air flow after heat exchange can flow to the air outlet channel 131 and flows out of the battery 10 from the air outlet channel 131, so that the battery module 110 can be thermally managed by the air flow with proper temperature, the air inlet cavity 122 is formed in the lower box body 120, the air outlet channel 131 is formed in the upper box body 130, an air cooling pipeline does not need to be additionally arranged, the manufacturing cost of the air cooling pipeline is saved, and the manufacturing cost of the battery 10 is reduced to a certain extent.
In some embodiments of the present application, referring to fig. 4, 5 and 6, optionally, the battery module 110 includes a plurality of air deflectors 112 arranged at intervals, and a battery cell disposed between two adjacent air deflectors 112. An air guide passage 111 is arranged between two opposite sides of the single battery and the adjacent air guide plates 112.
That is, each battery cell is located between two adjacent air deflectors 112.
Therefore, the airflow entering the accommodating cavity 121 can pass through the air guide passage 111 arranged between the single battery and the adjacent air guide plate 112 to exchange heat with the single battery, and it can be understood that the airflow entering the accommodating cavity 121 can exchange heat with a plurality of single batteries, so that the battery module 110 can be better subjected to heat management, and the heat management effect can also be improved.
In some embodiments of the present application, referring to fig. 4, fig. 5, and fig. 6, the wind guiding passage 111 includes a plurality of sub-guiding wind channels 1111, a first end of each sub-guiding wind channel 1111 is communicated with the wind inlet cavity 122, and a second end of each sub-guiding wind channel 1111 is communicated with the wind outlet channel 131.
That is to say, two ends of each sub air guide channel 1111 are respectively communicated with the air inlet cavity 122 and the air outlet channel 131.
Then, the airflow entering the accommodating cavity 121 can respectively pass through the plurality of air guide passages 111 and can flow into the plurality of sub air guide channels 1111 of each air guide passage 111, and this airflow can exchange heat with the battery cells more uniformly, so that the thermal management of the battery module 110 can be better performed.
In some embodiments of the present application, referring to fig. 4, fig. 5 and fig. 6, optionally, a plurality of first guiding ribs 1121 are disposed at intervals on one side of the air guiding plate 112 facing the battery cells, and a plurality of sub guiding air channels 1111 are defined by the one side of the battery cells facing the air guiding plate 112 and the plurality of first guiding ribs 1121.
It is understood that a plurality of sub-wind guide channels 1111 are formed between the battery cells and an adjacent one of the wind deflectors 112.
So, the air current homoenergetic through a plurality of sub-water conservancy diversion wind channel 1111 carries out the heat transfer with the battery monomer, can improve thermal management effect.
In some embodiments of the present application, referring to fig. 4, 5 and 6, two first limiting portions 1122 for limiting the position of the battery cell are further disposed on one side of the air guiding plate 112 facing the battery cell. The first limiting portion 1122 is located at one side of the first ends of the first flow guiding ribs 1121 to define a collecting channel 113 communicating with the second ends of the sub flow guiding air ducts 1111 with the battery cells, and the collecting channel 113 is communicated with the air outlet channel 131.
It is understood that the first flow guiding ribs 1121 can function to guide the airflow to the converging channel 113. Thus, the air flow passing through the sub-guiding air ducts 1111 can converge to the converging channel 113 and then flow into the air outlet channel 131, so that the heat-exchanged air flow flows out of the battery 10.
Then, the airflow entering the accommodating cavity 121 may pass through the plurality of air guide passageways 111, the airflow passing through the plurality of sub air guide channels 1111 of each air guide passageway 111 may exchange heat with the adjacent single batteries, and then flow into the corresponding converging channels 113, and the airflow flowing into the plurality of converging channels 113 may all flow into the air outlet channel 131, so that the portion of the airflow may respectively exchange heat with the plurality of single batteries, and the airflow after completing the heat exchange may all flow out of the battery 10 through the air outlet channel 131.
Optionally, referring to fig. 4 in combination with fig. 5 and 6, the air guiding plate 112 has a first side surface c and a second side surface d opposite to each other, the first guiding ribs 1121 are disposed on the first side surface c, and the second side surface d is disposed along the first direction F1The second limiting part 1123 and the third limiting part 1124 are oppositely arranged, so that the battery cell can be limited between the second limiting part 1123 and the third limiting part 1124. Wherein the first direction F1Can be parallel to the direction of the air flow in the air inlet cavity 122 to the air outlet channel 131. In particular, in the embodiment shown in FIG. 4, the first direction F1In the up-down direction.
In two adjacent air deflectors 112, the single battery is located between the second side surface d of one air deflector 112 and the first side surface c of the other air deflector 112. The single battery can be positioned on one of the air guiding plates 112 by means of the second position-limiting portion 1123 and the third position-limiting portion 1124 on one of the air guiding plates 112, and the air guiding passage 111 adjacent to the single battery is positioned between two sides of the single battery facing to the other air guiding plate 112.
Therefore, the single battery can be better positioned between the two adjacent air guide plates 112, and the air flow in the air guide passage 111 adjacent to the single battery can be better utilized for exchanging heat with the single battery, so that the plurality of single batteries can be thermally managed.
In some embodiments of the present application, optionally, referring to fig. 4, the first flow guiding ribs 1121 include a first direction F1A first section a extending along the second direction F and connected with the first section a in an arc shape2An extended second section b. The first end of the first flow guiding rib 1121 is a second section b far away from the first sectiona, one end of each. The first position-limiting portion 1122 is located at the second section b of the first flow-guiding rib 1121 along the second direction F2Adjacent to one side of the edge of the air deflection plate 112. Wherein the first direction F1And a second direction F2Intersect each other and are all parallel to the air deflection plates 112.
The first section a and the second section b are connected in an arc shape, and it is understood that the first flow guide rib 1121 further includes an arc-shaped section connected between the first section a and the second section b.
In this way, the airflow flowing into the air guide passage 111 can flow along the first flow guide ribs 1121, and the first flow guide ribs 1121 can increase the contact time between the airflow and the battery cells, thereby improving the thermal management effect.
Optionally, the first direction F1And a second direction F2Perpendicular to each other, in particular to the embodiment shown in fig. 4, the first direction F1In the up-down direction, the second direction F2In the left-right direction, the air flow in the air inlet cavity 122 may flow upward into the accommodating cavity 121 and exchange heat with the battery module 110 in the accommodating cavity 121, in this process, the air flow may flow upward into the sub-guiding air duct 1111 and then converge leftward or rightward to the corresponding converging channel 113, and the air flow after completing the heat exchange may flow out of the battery 10 from the air outlet channel 131.
Optionally, both the end of the first segment a remote from the second segment b and the end of the second segment b remote from the first segment a are convergent ends in order to reduce the resistance to the airflow.
In some embodiments of the present application, optionally, referring to fig. 3, the plurality of wind deflectors 112 are arranged along the third direction F3Arranged at intervals, and the whole formed by a plurality of air deflectors 112 is arranged along a third direction F3Are connected to the two sides of the air guide plate, respectively, so as to position the whole air guide plate 112 between the two side sealing plates 114.
In the embodiment shown in fig. 3, the plurality of air deflectors 112 are arranged at intervals in the front-rear direction.
Optionally, referring to fig. 3 and 5, a first connection portion 1125 is disposed at a bottom end of the air guiding plate 112, and the first connection portion 1125 is along a third direction F3Is provided with a first mating part 1126 and a second mating part 1126Two matching portions 1127, two adjacent air deflectors 112 are matched with each other by the second matching portion 1127 on one air deflector 112 and the first matching portion 1126 on the other air deflector 112. The adjacent two air guide plates 112 may be connected to each other, improving the assembly reliability of the battery module 110.
Optionally, the first mating portion 1126 is a first step, and the second mating portion 1127 is a second step adapted to the first step, so that two adjacent air deflectors 112 can be clamped to each other.
Optionally, referring to fig. 3 and fig. 6, a second connecting portion is disposed on one side of the top end of the air guiding plate 112, and the second connecting portion is along a third direction F3The two adjacent air deflectors 112 are coupled to each other by the fourth coupling portion 1129 on one of the air deflectors 112 and the third coupling portion 1128 on the other air deflector 112. The adjacent two air guide plates 112 may be connected to each other, improving the assembly reliability of the battery module 110.
Optionally, the third mating portion 1128 is configured as a slot formed in the second connecting portion, the fourth mating portion 1129 is a plugging portion adapted to the slot, and the plugging portion of one of the two adjacent air deflectors 112 is plugged into the slot of the other air deflector 112, so as to improve the assembling reliability of the battery module 110. In some embodiments of the present application, referring to fig. 2, optionally, the accommodating chamber 121 and a corresponding one of the air inlet chambers 122 are stacked and communicated with each other, and one side of the lower box 120 is provided with an air inlet 123 communicated with the air inlet chamber 122.
The air flow enters the air inlet cavity 122 through the air inlet 123 and then flows into the accommodating cavity 121 to exchange heat with the battery module 110 in the accommodating cavity 121, and after the heat exchange is completed, the air flow can flow out of the battery 10 from the air outlet channel 131.
In some embodiments of the present application, referring to fig. 2, optionally, the lower case 120 is provided with a support plate 124 for separating the accommodating cavity 121 from the air inlet cavity 122, the battery module 110 is supported on one side of the support plate 124, and the support plate 124 is provided with an opening 1241 for communicating the air guiding passage 111 with the air inlet cavity 122.
The battery module 110 is supported at one side of the support plate 124 such that the battery module 110 is smoothly placed in the receiving cavity 121 of the lower case 120.
Meanwhile, the air flow entering the air inlet cavity 122 can enter the plurality of air guide passages 111 through the openings 1241, and then exchanges heat with the battery module 110, and the air flow after heat exchange can flow out of the battery 10 from the air outlet passage 131. Thus, the battery module 110 can be stably placed in the accommodating cavity 121 of the lower case 120, and the airflow flowing into the air inlet cavity 122 can flow to the air outlet channel 131 through the plurality of air guide passages 111.
In some embodiments of the present application, optionally, referring to fig. 2, the air inlet cavity 122 has a first sidewall 1221 opposite to the opening 1241, the air inlet 123 is disposed on a sidewall of the air inlet cavity 122 adjacent to the first sidewall 1221, and at least two second flow guide ribs 125 are disposed on the first sidewall 1221. Wherein, the extending direction of the second flow guiding ribs 125 is parallel to the air inlet direction of the air inlet 123.
The opening 1241 and the first sidewall 1221 are along the first direction F1Oppositely arranged, one side wall of the air inlet cavity 122 adjacent to the first side wall 1221 is along the first direction F1Extending, i.e. the plane of the air inlet 123 is substantially parallel to the first direction F1I.e. the air inlet direction of the air inlet 123 and the first direction F1Perpendicular to each other. In the embodiment shown in fig. 2, the first direction F is specific1The air inlet direction of the air inlet 123 is the third direction F shown in the figure3In a third direction F3The front-back direction is, then, the plane of the air inlet 123 is substantially parallel to the up-down direction.
Thus, the airflow flowing along the air inlet direction of the air inlet 123 can flow along the second flow guiding ribs 125, and a part of the airflow is located between two adjacent second flow guiding ribs 125, and the second flow guiding ribs 125 can play a role of guiding the airflow, so that the airflow flowing into the air inlet cavity 122 can respectively flow into the plurality of air guiding passageways 111 along the second flow guiding ribs 125 to exchange heat with the plurality of battery cells.
Optionally, referring to fig. 2 in combination with fig. 7, the number of the second flow guide ribs 125 may be two, the two second flow guide ribs 125 are symmetrically distributed with respect to the central axis of the accommodating cavity 121, and an air inlet channel 1252 is formed between the two second flow guide ribs 125, so that the air flow flowing into the air inlet cavity 122 can flow into the air inlet channel 1252 and can better flow into the plurality of air guide passageways 111.
In some embodiments of the present application, referring to fig. 2 and fig. 7, optionally, a converging portion 1251 is disposed at an end of the second flow guiding rib 125 facing the air inlet 123, and a width dimension of an orthographic projection of the converging portion 1251 on the first sidewall 1221 is gradually decreased along the air inlet direction. Here, the width of the orthographic projection of the convergent portion 1251 on the first side wall 1221 is a dimension of the orthographic projection of the convergent portion 1251 on the first side wall 1221 in a direction perpendicular to the extending direction of the second flow guide rib 125.
It will be appreciated that the provision of the converging portion 1251 can reduce the resistance to the airflow entering the air inlet chamber 122, and can improve the efficiency of the heat management to some extent.
Optionally, referring to fig. 2 in combination with fig. 7, a wind inlet groove 126 is formed on one side of the lower case 120, the wind inlet groove 126 has an open end 1261 and a closed end opposite to the open end 1261, the wind inlet 123 is formed at the closed end of the wind inlet groove 126, and the wind inlet groove 126 further has a diversion surface 1262 connected between the closed end and the open end 1261 for guiding the wind flowing into the wind inlet groove 126 from the open end 1261 to the wind inlet 123.
The inlet opening 123 is open at the closed end of the inlet duct 126, so that ambient air can flow from the open end 1261 of the inlet duct 126 into the inlet duct 126 and then through the inlet opening 123 into the inlet cavity 122, so that air flowing into the inlet cavity 122 can flow through the plurality of air guiding passageways 111 to the outlet channel 131.
The diversion surface 1262 is configured to direct the airflow entering the air inlet slot 126 from the open end 1261 to the air inlet 123, thereby achieving the diversion effect.
Optionally, the distance between the edge of deflector surface 1262 remote from open end 1261 and the central axis of air inlet slot 126 is less than the distance between the edge of deflector surface 1262 adjacent to open end 1261 and the central axis of air inlet slot 126. Specifically, the diversion surface 1262 is an inclined surface, which can better guide the airflow entering the air inlet slot 126 to the air inlet 123.
In some embodiments of the present application, optionally, referring to fig. 2, the air inlet duct 126 further has a first guiding surface e adjacent to the guiding surface 1262 and extending along the air inlet direction, a second guiding surface f is connected between the first guiding surface e and the first side wall 1221, the first guiding surface e is substantially parallel to the wall surface of the first side wall 1221, the second guiding surface f is connected to the wall surfaces of the first guiding surface e and the first side wall 1221 at an obtuse angle, respectively, and the connection between the first guiding surface e and the second guiding surface f and the connection between the second guiding surface f and the wall surface of the first side wall 1221 are rounded, so that the air flow entering the air inlet duct 126 is guided into the air inlet chamber 122 through the air inlet 123, and the air flow guided into the air inlet chamber 122 can better flow along the second guiding ribs 125 on the first side wall 1221, thereby improving the guiding effect.
In some embodiments of the present application, referring to fig. 2, 3 and 4, the battery 10 includes a case including a first direction F and 2 battery modules 1101A lower case 120 and an upper case 130 oppositely arranged, the lower case 120 being provided with a second direction F2 Two holding cavities 121 arranged at intervals and air inlet cavities 122 corresponding to the holding cavities 121 one by one. Each accommodating cavity 121 accommodates a battery module 110 therein, and one side of the lower case 120 is provided with a second direction F2Two air inlet grooves 126 arranged at intervals, one sides of the two flow guide surfaces 1262 close to the corresponding open ends 1261 are connected with each other, so that air flow at one side of the lower box body 120 can be divided into the two air inlet grooves 126 through the two flow guide surfaces 1262, the air flow flowing into the air inlet grooves 126 can enter the air inlet cavity 122 through the corresponding air inlets 123 and further flow into the plurality of air guide passages 111 in the corresponding accommodating cavity 121, so that the air flow exchanges heat with the plurality of battery cells arranged at intervals along the third direction in the battery modules 110 in the accommodating cavity 121, and the air flow after heat exchange can flow out of the battery 10 through the air outlet channel 131 on the upper box body 130.
In some embodiments of the present application, optionally, the power utilization device provided in an embodiment of the present application includes the battery 10 as described above.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. A battery, comprising a case and a battery module (110), the case comprising:
the lower box body (120) is provided with a containing cavity (121) for containing the battery module (110) and an air inlet cavity (122) which is positioned on one side of the lower box body (120) and is communicated with the containing cavity (121);
the upper box body (130) is covered on the lower box body (120), and an air outlet channel (131) communicated with the accommodating cavity (121) is arranged on the upper box body (130);
the battery module (110) is provided with a plurality of air guide passages (111) which are communicated with the air inlet cavity (122) and the air outlet channel (131), so that air flowing into the air inlet cavity (122) can flow to the air outlet channel (131) through the plurality of air guide passages (111).
2. The battery according to claim 1, wherein the battery module (110) comprises a plurality of air deflectors (112) arranged at intervals, and single batteries arranged between two adjacent air deflectors (112);
the air guide passage (111) is arranged between two opposite sides of the single battery and the adjacent air guide plates (112).
3. The battery according to claim 2, characterized in that the air guiding corridor (111) comprises a plurality of sub-guiding air ducts (1111);
the first end of each sub-guide air duct (1111) is communicated with the air inlet cavity (122), and the second end of each sub-guide air duct (1111) is communicated with the air outlet channel (131).
4. The battery according to claim 3, wherein a side of the air deflector (112) facing the battery cells is provided with a plurality of first air guide ribs (1121) spaced apart from each other, and the side of the battery cells facing the air deflector (112) and the plurality of first air guide ribs (1121) define a plurality of sub air guide channels (1111).
5. The battery according to claim 4, wherein two first limiting parts (1122) for limiting the battery cell are further arranged on one side of the air deflector (112) facing the battery cell;
the first limiting portion (1122) is located on one side of the first ends of the first flow guide ribs (1121) to define a convergence channel (113) communicated with the second ends of the sub-flow guide air ducts (1111) together with the single battery, and the convergence channel (113) is communicated with the air outlet channel (131).
6. The battery according to claim 5, wherein the first flow guide ribs (1121) comprise a first section (a) extending in a first direction, and a second section (b) connected in an arc shape to the first section (a) and extending in a second direction;
the first end of the first flow guide rib (1121) is the end of the second section (b) far away from the first section (a);
the first limiting part (1122) is positioned at one side, close to the edge of the air deflector (112), of the second section (b) of the first flow guide rib (1121) along the second direction;
wherein the first direction and the second direction intersect each other and are both parallel to the air deflector (112).
7. The battery according to any one of claims 1-6, wherein the receiving chamber (121) and a corresponding one of the air inlet chambers (122) are arranged in a stacked manner and communicate with each other;
and an air inlet (123) communicated with the air inlet cavity (122) is formed in one side of the lower box body (120).
8. The battery according to claim 7, characterized in that the lower case (120) is provided with a support plate (124) which separates the housing chamber (121) from the air intake chamber (122);
the battery module (110) is supported on one side of the support plate (124);
an opening (1241) used for communicating the air guide passage (111) with the air inlet cavity (122) is formed in the supporting plate (124).
9. The battery of claim 8, wherein the air intake chamber (122) has a first side wall (1221) opposite the opening (1241);
the air inlet (123) is arranged on one side wall of the air inlet cavity (122) adjacent to the first side wall (1221);
at least two second flow guide ribs (125) are arranged on the first side wall (1221);
the extending direction of the second flow guide ribs (125) is parallel to the air inlet direction of the air inlet (123).
10. The battery according to claim 9, characterized in that the end of the second flow guiding rib (125) facing the air inlet opening (123) is provided with a convergence (1251);
along the air inlet direction, the width size of the orthographic projection of the convergent part (1251) on the first side wall (1221) is gradually reduced;
wherein the width of the orthographic projection of the convergent portion (1251) on the first side wall (1221) is the dimension of the orthographic projection of the convergent portion (1251) on the first side wall (1221) in the direction perpendicular to the extending direction of the second flow guide rib (125).
11. The battery of claim 7, wherein a wind inlet groove (126) is formed at one side of the lower case (120), and the wind inlet groove (126) has an open end (1261) and a closed end opposite to the open end (1261);
the air inlet (123) is formed in the closed end of the air inlet groove (126);
the air inlet slot (126) further has a flow guide surface (1262) connected between the closed end and the open end (1261) for guiding the air flow entering the air inlet slot (126) from the open end (1261) to the air inlet (123).
12. An electric consumer, characterized in that it comprises a battery (10) according to any one of claims 1 to 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220198567.4U CN216720073U (en) | 2022-01-25 | 2022-01-25 | Battery and electric device |
| PCT/CN2023/070973 WO2023142968A1 (en) | 2022-01-25 | 2023-01-06 | Battery and electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220198567.4U CN216720073U (en) | 2022-01-25 | 2022-01-25 | Battery and electric device |
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| Publication Number | Publication Date |
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| CN216720073U true CN216720073U (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220198567.4U Active CN216720073U (en) | 2022-01-25 | 2022-01-25 | Battery and electric device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN216720073U (en) |
| WO (1) | WO2023142968A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142968A1 (en) * | 2022-01-25 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Battery and electrical apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004087218A (en) * | 2002-08-26 | 2004-03-18 | Honda Motor Co Ltd | Battery-type power supply device |
| CN105514319B (en) * | 2016-02-24 | 2018-03-06 | 宁德时代新能源科技股份有限公司 | Battery pack cooling system |
| CN105957991B (en) * | 2016-07-12 | 2018-12-04 | 宁德时代新能源科技股份有限公司 | Battery module |
| TWI623140B (en) * | 2016-09-30 | 2018-05-01 | 財團法人金屬工業研究發展中心 | Battery case for electric vehicle with heat dissipation and drainage structure |
| CN211507830U (en) * | 2019-11-26 | 2020-09-15 | 宁德时代新能源科技股份有限公司 | Battery module, battery pack, and device using battery module as energy source |
| CN113540615A (en) * | 2021-06-28 | 2021-10-22 | 长城汽车股份有限公司 | Box, battery package and vehicle under battery package |
| CN216720073U (en) * | 2022-01-25 | 2022-06-10 | 宁德时代新能源科技股份有限公司 | Battery and electric device |
-
2022
- 2022-01-25 CN CN202220198567.4U patent/CN216720073U/en active Active
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2023
- 2023-01-06 WO PCT/CN2023/070973 patent/WO2023142968A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142968A1 (en) * | 2022-01-25 | 2023-08-03 | 宁德时代新能源科技股份有限公司 | Battery and electrical apparatus |
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| Publication number | Publication date |
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| WO2023142968A1 (en) | 2023-08-03 |
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