WO2023131082A1 - 电池外壳、电池和用电装置 - Google Patents

电池外壳、电池和用电装置 Download PDF

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Publication number
WO2023131082A1
WO2023131082A1 PCT/CN2022/144105 CN2022144105W WO2023131082A1 WO 2023131082 A1 WO2023131082 A1 WO 2023131082A1 CN 2022144105 W CN2022144105 W CN 2022144105W WO 2023131082 A1 WO2023131082 A1 WO 2023131082A1
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WO
WIPO (PCT)
Prior art keywords
accommodating groove
side plate
battery
adhesive
groove
Prior art date
Application number
PCT/CN2022/144105
Other languages
English (en)
French (fr)
Inventor
吕鹏飞
钟光跃
邱宇东
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Publication of WO2023131082A1 publication Critical patent/WO2023131082A1/zh

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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
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • 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
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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

Definitions

  • the present application relates to the field of battery technology, in particular to a battery casing, a battery and an electrical device.
  • a general battery may include a battery pack formed by a plurality of battery cells.
  • the battery pack in order to ensure that the battery cells will not be polluted by external water vapor and dust during use, it is usually necessary to seal the battery cells in the box.
  • the traditional battery pack uses bolts to seal the case.
  • the bolts require a certain amount of installation space during installation.
  • the battery pack sealed with bolts takes up a lot of space, which in turn reduces the energy density of the battery pack.
  • a battery case including a cover, a side plate and an adhesive.
  • the cover body is provided with an accommodating groove, and one end of the side plate extends into the accommodating groove.
  • the adhesive is arranged in the accommodating groove, so that one end of the side plate protruding into the accommodating groove is connected to the accommodating groove.
  • an adhesive can be placed in the accommodating groove, so that one end of the side plate protruding into the accommodating groove is connected to the accommodating groove, so that the side plate and the cover body define a A housing cavity for housing the electric core.
  • the side plate is located on the inner side of one end of the cover, so that the overall space occupied by the battery case is small, which can reduce the occupied space of the battery.
  • it also includes a stopper arranged in the accommodating groove, and the stopper is set on the side of the adhesive facing the opening of the accommodating groove, so as to limit the adhesive to the accommodating groove along the opening. flow outside. It can prevent the adhesive from flowing away from the accommodating tank before it is cured, and can ensure the position of the adhesive, thereby ensuring the sealed connection between the side plate and the cover body.
  • the stop portion is interference-fitted in the gap between the side plate and the side wall of the accommodating groove.
  • the side plate can be better fixed to the accommodating groove, and the connection firmness between the side plate and the cover can be improved; on the other hand, the adhesive can be limited between the bottom wall of the accommodating groove and the stopper , to better prevent the adhesive from flowing away before it is cured, and thus better ensure the sealed connection between the side plate and the cover.
  • the battery case includes two stoppers located on both sides of the side plate along the first direction, and the two stoppers are interference fit between the side plate and the corresponding side wall of the accommodating groove within the gap; the first direction is perpendicular to the side panels.
  • the end of the side plate extending into the accommodation groove can be clamped by the two stoppers, so that the side plate is better fixed in the accommodation groove, and the firmness of the connection between the side plate and the cover is improved. It can also better prevent the adhesive from flowing away before it is cured, thereby better ensuring the sealed connection between the side plate and the cover body.
  • one end of the side plate protruding into the accommodating groove abuts against the adhesive, and one end of the stop portion along the second direction also abuts against the adhesive; the second direction is parallel to the side plate.
  • the stopper can be set on the outside of the adhesive, which is beneficial to the positioning of the adhesive in the accommodating groove, and can also prevent the adhesive from flowing away before it is cured, which is beneficial for the side plate to extend into the accommodating
  • One end of the groove is sealingly connected to the accommodating groove.
  • one end of the side plate protruding into the accommodation groove is provided with a reinforcing portion, and the reinforcing portion is connected to one side of a stop portion along a first direction, and the first direction is perpendicular to the side plate.
  • the sealing contact surface between the side plate and the corresponding accommodating groove can be increased, so that the side plate is more firmly sealed and connected to the accommodating groove.
  • the reinforcing part is integrally formed with the side panel and bent relative to the side panel.
  • the overall strength of the reinforcement part and the side plate can be improved, and it is beneficial for the side plate to be more firmly sealed and connected to the accommodating groove.
  • a positioning portion is provided on the outer side of the accommodating groove along the first direction, and the positioning portion is connected to the reinforcing portion so as to position the end of the side plate extending into the accommodating groove in the accommodating groove.
  • the reinforcement part on the side plate can be connected to the positioning part, so that the side plate can be preliminarily positioned on the cover body, and the connection firmness between the cover body and the side plate can be improved To prevent the side plate from moving in the accommodating tank before the adhesive is cured, resulting in poor sealing effect, so that the side plate can be firmly sealed and connected to the accommodating tank.
  • the positioning portion extends along the second direction toward a side away from the accommodating groove, and the positioning portion includes a connecting portion connected to the accommodating groove, and a limiting portion connected to a side of the connecting portion away from the accommodating groove .
  • the connecting part and the limiting part define a slot for clamping the reinforcing part.
  • the second direction is parallel to the side panels. The reinforcement part on the side plate can be snapped into the card slot, so that the side plate can be firmly sealed and connected to the accommodating slot.
  • the limiting portion abuts against a side of the reinforcing portion away from the accommodating groove along the second direction.
  • the outer side of the receiving groove along the first direction is provided with a plurality of positioning parts arranged at intervals along the third direction.
  • the first direction, the second direction and the third direction are perpendicular to each other.
  • the reinforcement part on the side plate can be clamped to at least one positioning part to ensure that the side plate can be initially positioned on the cover body. In this way, setting multiple positioning parts can adapt to greater processing and installation errors, and can improve the stability of the battery case. Installation reliability.
  • one end of the side plate protruding into the accommodating groove is provided with a reinforcing part, and the reinforcing part is connected with the accommodating groove through an adhesive.
  • the sealing contact surface between the side plate and the corresponding accommodating groove can be increased, so that the side plate is more firmly sealed and connected to the accommodating groove.
  • the depth of the accommodating groove is 4-6 millimeters (mm).
  • the groove depth of the accommodating groove is too small, which is not conducive to accommodating adhesives, etc., and the groove depth of the accommodating groove is too large, which takes up a lot of space, so the groove depth of the accommodating groove is preferably set to 4-6 millimeters (mm) , it is convenient to place the adhesive in the accommodation groove, and it is beneficial to connect the end of the side plate extending into the accommodation groove to the accommodation groove.
  • a battery including the above-mentioned battery case.
  • an electric device including the above-mentioned battery.
  • Fig. 1 is a schematic structural diagram of a vehicle provided according to one or more embodiments.
  • Fig. 2 is a schematic structural diagram of a battery provided according to one or more embodiments.
  • FIG. 3 is an enlarged schematic view of A in FIG. 2 .
  • FIG. 4 is an exploded schematic diagram of a battery provided according to one or more embodiments.
  • Fig. 5 is a partial structural schematic diagram of a cover body and a side panel provided according to one or more embodiments.
  • multiple refers to more than two (including two), similarly, “multiple groups” refers to more than two groups (including two), and “multiple pieces” refers to More than two pieces (including two pieces).
  • a general battery may include a battery pack formed by a plurality of battery cells.
  • the traditional battery includes a box and a cover.
  • the cover is set on the box, and a sealing ring is arranged between the cover and the box to seal the cover to the box, resulting in a large space occupation of the traditional battery.
  • the inventor of the present application noticed that the reason why the traditional battery occupies a large space is that in the traditional battery, the outer peripheral surface of the box body and the outer peripheral surface of the cover body are aligned with each other, so that the cover body and the box body are connected by bolts, Moreover, the sealing ring can be arranged between the cover body and the box body, which will lead to a larger volume of the box body of the traditional battery, and thus lead to a larger space occupied by the traditional battery.
  • the inventor of the present application has designed a cover and a side plate after in-depth research. And use the adhesive in the storage tank to make the end of the side plate protruding into the storage tank connected to the storage tank, so that the side plate is located on the inner side of one end of the cover body, so that the overall occupied space of the battery case is small , can reduce the space occupied by the battery.
  • the battery case and/or battery disclosed in the embodiments of the present application can be used in electric devices such as vehicles, ships or aircrafts, but not limited to.
  • Electric devices can be but not limited to mobile phones, tablets, laptops, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc.
  • electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric boat toys, electric airplane toys, etc.
  • spacecraft may include airplanes, rockets, space shuttles, spaceships, etc.
  • the power supply system comprising the electric device disclosed in this application can be used, so that it is convenient to provide electric drive for the electric device and save the occupied space of the electric device.
  • FIG. 1 is a schematic structural diagram of a vehicle provided according to one or more embodiments, the vehicle 1 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. .
  • a battery 10 is provided inside the vehicle 1 .
  • the battery 10 may be provided at the bottom or front or rear of the vehicle 1 .
  • the battery 10 can be used for power supply of the vehicle 1 , for example, the battery 10 can be used as an operating power source of the vehicle 1 , for the circuit system of the vehicle 1 , for example, for starting, navigating and running power requirements of the vehicle 1 .
  • the battery 10 can not only be used as an operating power source for the vehicle 1 , but can also be used as a driving power source for the vehicle 1 , replacing or partially replacing fuel oil or natural gas to provide driving force for the vehicle 1 .
  • a motor 20 and a controller 30 may also be provided inside the vehicle 1 , and the controller 30 is used to control the battery 10 to supply power to the motor 20 , for example, for starting, navigating and running the vehicle 1 .
  • FIG. 2 shows a schematic structural diagram of a battery 10 in an embodiment of the present application.
  • a battery 10 provided by an embodiment of the present application includes a battery case 100 .
  • the number of battery cells included in the battery may be one or more.
  • the battery 10 can be a battery pack or a battery module.
  • a battery case 100 provided by an embodiment of the present application includes a cover 110 , a side plate 120 and an adhesive 130 .
  • the cover body 110 is provided with an accommodating groove 111, one end of the side plate 120 extends into the accommodating groove 111, and the adhesive 130 is arranged in the accommodating groove 111, so that one end of the side plate 120 extending into the accommodating groove 111 is connected to the accommodating groove 111 .
  • the adhesive 130 can be placed in the accommodating groove 111, so that one end of the side plate 120 protruding into the accommodating groove 111 is connected to the accommodating groove 111, so that the side plate 120 and the cover body 110 define An accommodating cavity 1201 for accommodating the battery cell 200 is provided.
  • the side plate 120 is located inside one side end of the cover 110 , so that the battery case 100 occupies less space overall, which can reduce the space occupied by the battery 10 .
  • the adhesive 130 includes glue applied to the bottom wall of the accommodating tank 111.
  • the glue can be applied to the bottom wall of the accommodating tank 111 first, and then one end of the side plate 120 Extend into the accommodation groove 111 , after the glue is cured, the end of the side plate 120 extending into the accommodation groove 111 can be connected to the accommodation groove 111 .
  • the number of side plates 120 may be two, and the two side plates 120 are arranged opposite and spaced apart along the first direction F 1 , and the cover body along the second direction F 2 is arranged between the two side plates 120 110 are bottom plates 121 disposed opposite to each other.
  • the accommodating groove 111 has an opening toward the bottom plate 121 along the second direction F2 , so that the end of the side plate 120 away from the bottom plate 121 protrudes into the corresponding accommodating groove 111 through the opening, and then the side plate is made of the adhesive 130 One end of 120 protruding into the accommodating groove 111 on the same side is connected to the accommodating groove 111 on the same side.
  • first direction F 1 and the second direction F 2 are perpendicular to each other, and the first direction F 1 is perpendicular to the side plate 120 , and the second direction F 2 is parallel to the side plate 120 .
  • first direction F1 is the left-right direction
  • second direction F2 is the up-down direction
  • the side plate 120 and the corresponding accommodating groove 111 are located on the same side of the cover body 110, that is, the left side An end of the plate 120 away from the bottom plate 121 extends into the left accommodating groove 111 , and an end of the right side plate 120 away from the bottom plate 121 extends into the right accommodating groove 111 .
  • the housing cavity 1201 is surrounded by the cover body 110, the bottom plate 121 and two side plates 120.
  • One battery cell 200 can be placed in the housing cavity 1201, and multiple battery cells 200 can also be placed in the housing cavity 1201.
  • a side sealing plate sealingly connected to the cover 110 is arranged between the side plates 120 to improve the sealing performance of the battery 10 and isolate the battery cell 200 from the external environment.
  • the two ends of the cover body 110 are respectively bent along the first direction F 1 to form the accommodating groove 111 .
  • the opening of the accommodating groove 111 is set downward, and the bottom wall of the accommodating groove 111 is set downward.
  • the battery case 100 further includes a stopper 140 disposed in the accommodating groove 111 , and the stopper 140 is arranged on the side facing the adhesive 130 .
  • One side of the opening of the accommodating groove 111 is used to restrict the adhesive 130 from flowing out of the accommodating groove 111 along the opening.
  • the stop portion 140 is used to restrict the adhesive 130 from flowing out of the accommodating groove 111 through the opening.
  • the stop portion 140 is interference fit in the gap between the side plate 120 and the side wall of the receiving groove 111 .
  • the size of the stop portion 140 along the first direction F1 is larger than the size of the gap in the first direction F1 .
  • the side plate 120 can be better fixed to the accommodating groove 111, improving the firmness of the connection between the side plate 120 and the cover body 110; on the other hand, the adhesive 130 can be limited to the bottom wall of the accommodating groove 111 Between the side plate 120 and the cover 110 , it is better to prevent the adhesive 130 from flowing away before it is cured, so as to better ensure the sealing connection between the side plate 120 and the cover body 110 .
  • the battery housing 100 includes two stoppers 140 located on both sides of the side plate 120 along the first direction F1 , and the two stoppers 140 are both The interference fit is in the gap between the side plate 120 and the corresponding side wall of the accommodating groove 111 .
  • the two stoppers 140 are located on both sides of the side plate 120 along the first direction F1 . As shown in FIG. 3 , the two stoppers 140 are respectively located on the left and right sides of the side plate 120 .
  • the distance between the two stoppers 140 along the first direction F1 is smaller than the dimension along the first direction F1 of the end of the side plate 120 protruding into the receiving groove 111, so that the stoppers 140 are interference fit on the sideplate 120 and the corresponding sidewall of the accommodating groove 111 in the gap.
  • One end of the side plate 120 protruding into the accommodating groove 111 can be clamped by two stoppers 140 , so that the side plate 120 is better fixed in the accommodating groove 111 , and the connection firmness between the side plate 120 and the cover body 110 is improved. It can also better prevent the adhesive 130 from flowing away before it is cured, thereby better ensuring the sealing connection between the side plate 120 and the cover body 110.
  • one end of the side plate 120 protruding into the receiving groove 111 abuts against the adhesive 130
  • one end of the stopper 140 along the second direction F2 also abuts against the adhesive 130 .
  • the two stoppers 140 are located on the side of the adhesive 130 facing the opening.
  • the stopper 140 can be set on the outside of the adhesive 130, which is conducive to the positioning of the adhesive 130 in the accommodating groove 111, and can also well prevent the adhesive 130 from flowing away before it is cured, which is beneficial to the side.
  • One end of the board 120 protruding into the accommodation groove 111 is sealingly connected to the accommodation groove 111 .
  • One end of the side plate 120 protruding into the accommodating groove 111 is provided with a reinforcement part 1202 , and the reinforcement part 1202 is connected to a stopper part 140 along the first direction F1. , wherein the first direction F 1 is perpendicular to the side plate 120 .
  • the reinforcing part 1202 is integrally formed with the side panel 120 and bent relative to the side panel 120 .
  • the reinforcement part 1202 extends along the second direction F2 toward the side away from the accommodating groove 111. As shown in FIG. 140.
  • the overall strength of the reinforcing portion 1202 and the side plate 120 can be improved, and it is beneficial for the side plate 120 to be more firmly sealed and connected to the accommodating groove 111 .
  • the reinforcing part 1202 is located between the stopper parts 140 on both sides, and is sealingly connected to one side of the stopper part 140 along the first direction F1 .
  • the reinforcing part 1202 has a sealing surface 1202 a facing the stopper part 140 , and the sealing surface 1202 a can improve the sealing contact surface between the side plate 120 and the corresponding accommodating groove 111 .
  • the overall interference formed by connecting one end of the side plate 120 into the accommodation groove 111 and the reinforcement portion 1202 is arranged between the two stopper portions 140 so that the side plate 120 can extend into the accommodation groove 111 One end is better sealed and connected to the accommodating groove 111 .
  • a positioning portion 112 is provided on the outer side of the accommodating groove 111 along the first direction F1 , and the positioning portion 112 is connected to the reinforcing portion 1202 to extend the side plate 120 into the accommodating One end of the slot 111 is positioned in the receiving slot 111 .
  • One end of the side plate 120 protruding into the receiving groove 111 can be positioned in the receiving groove 111 by using the positioning portion 112 .
  • the reinforcing part 1202 on the side plate 120 can be connected to the positioning part 112, so that the side plate 120 can be preliminarily positioned on the cover body 110, and the cover can be raised.
  • the solidity of the connection between the body 110 and the side plate 120 is also conducive to the curing of the adhesive 130 between the initially positioned side plate 120 and the accommodating groove 111, preventing the side plate 120 from being placed in the accommodating groove before the adhesive 130 is cured.
  • the inner movement of the side plate 111 results in a poor sealing effect, so that the side plate 120 can be firmly sealed and connected to the accommodating groove 111 .
  • the positioning portion 112 extends along the second direction F2 toward a side away from the accommodation groove 111 , and the positioning portion 112 includes a connecting portion connected to the accommodation groove 111 1121 , and the limiting portion 1122 connected to the side of the connecting portion 1121 away from the accommodating groove 111 .
  • the connecting portion 1121 and the limiting portion 1122 define a locking slot 1123 for locking the reinforcing portion 1202 .
  • the second direction F 2 is parallel to the side plate 120 .
  • the positioning part 112 can be engaged with the reinforcing part 1202 .
  • the positioning portion 112 is disposed on the outer side of the accommodating groove 111 along the first direction F 1 , that is, the positioning portion 112 is disposed on one side of the accommodating groove 111 along the first direction F 1 away from the cover 110 . As shown in FIG. 2 and FIG. 3 , the positioning portion 112 on the left side of the cover 110 is disposed on the left side of the accommodating groove 111 , and the positioning portion 112 on the right side of the cover 110 is disposed on the right side of the accommodating groove 111 . And the positioning portion 112 extends downward relative to the receiving groove 111 .
  • the reinforcement part 1202 on the side plate 120 can be snapped into the locking groove 1123, so that the side plate 120 can be preliminarily positioned on the cover body 110, improving The firmness of the connection between the cover body 110 and the water-cooled plate frame prevents the side plate 120 from moving in the accommodating groove 111 before the adhesive 130 is solidified, resulting in poor sealing effect, so that the side plate 120 can be firmly sealed and connected to the accommodating tank. Groove 111.
  • the limiting portion 1122 abuts against a side of the reinforcing portion 1202 away from the accommodating groove 111 along the second direction F 2 .
  • the reinforcement portion 1202 on the side plate 120 can be snapped into the locking groove 1123, and the reinforcement portion 1202 can be limited by the limiting portion 1122 away from it.
  • One side of the accommodating groove 111 is better to initially fix the side plate 120, which is more conducive to the curing of the adhesive 130 between the initially positioned side plate 120 and the accommodating groove 111, so that the side plate 120 is more firmly fixed.
  • the seal is connected to the receiving tank 111 .
  • the limiting part 1122 is an undercut structure, so that the reinforcing part 1202 on the side plate 120 is limited and fixed between the accommodating groove 111 and the limiting part 1122, which is beneficial to the side plate 120 being more firmly sealed and connected to the container. Put groove 111.
  • the outer side of the accommodating groove 111 along the first direction F1 is provided with a plurality of positioning parts 112 arranged at intervals along the third direction F3 , wherein the first direction F 1.
  • the second direction F 2 is perpendicular to the third direction F 3 in pairs.
  • the third direction F3 is parallel to the bottom plate 121.
  • the first direction F1 is the left-right direction
  • the second direction F2 is the up-down direction
  • the third direction F3 is the front-rear direction.
  • a plurality of positioning portions 112 are arranged on the left side of the left accommodating groove 111 along the front-rear direction
  • a plurality of positioning portions 112 are arranged on the right side of the right accommodating groove 111 along the front-rear direction.
  • the reinforcement portion 1202 on the side plate 120 can be engaged with at least one positioning portion 112 to ensure that the side plate 120 can be initially positioned on the cover. 110 , in this way, arranging a plurality of positioning parts 112 can accommodate larger processing and installation errors, and can improve the installation reliability of the battery case 100 .
  • a plurality of positioning portions 112 are arranged to form a comb-like structure, so that the reinforcing portion 1202 on the side plate 120 is engaged with at least one positioning portion 112 .
  • one end of the side plate 120 protruding into the accommodation groove 111 is provided with a reinforcement part 1202 , and the reinforcement part 1202 is connected to the accommodation groove 111 through an adhesive 130 .
  • the sealing contact surface between the side plate 120 and the corresponding accommodating groove 111 can be increased, so that the side plate 120 is more firmly sealed and connected to the accommodating groove 111 .
  • the depth of the accommodating groove 111 is 4-6 millimeters (mm).
  • the groove depth of the accommodating groove 111 refers to the depth of the accommodating groove 111 along the second direction F2 .
  • the groove depth of the accommodating groove 111 is set to 4-6 millimeters (mm), and the groove depth of the accommodating groove 111 is too small, which is not conducive to accommodating the adhesive 130, etc., and the groove depth of the accommodating groove 111 is too large, taking up more space Large, so the groove depth of the accommodating groove 111 is preferably set to 4-6 millimeters (mm), which is convenient for accommodating the adhesive 130 and/or stopper 140 in the accommodating groove 111, and facilitates the insertion of the side plate 120 One end of the accommodating groove 111 is connected to the accommodating groove 111 .
  • the depth of the accommodating groove 111 is 5 millimeters (mm).
  • the length of the reinforcing part 1202 along the second direction F2 is 3-5 millimeters (mm).
  • the reinforcing part 1202 can be well sealed and connected to a stop part 140, which can increase the number of side plates 120 and the sealing contact surface between the corresponding accommodating groove 111 .
  • the combination fastness between the reinforcing part 1202 and the positioning part 112 can be increased, and the installation reliability of the battery case 100 can be improved.
  • the accommodating groove 111 has a closed end disposed opposite to the opening along the second direction F2 , the size of the opening is larger than the size of the closed end, and the side plate 120 is firmly sealed and connected to the corresponding At the same time, it is beneficial to reduce the dimension of the cover body 110 along the first direction F1 .
  • the adhesive 130 has a tapered structure, and the size of the end of the adhesive 130 close to the side plate 120 is greater than the size of the end of the adhesive 130 away from the side plate 120, so as to improve the contact between the adhesive 130 and the side plate. 120 , so that the side plate 120 is better sealed and connected to the corresponding accommodating groove 111 .
  • the battery case 100 includes a cover 110 , two side panels 120 , an adhesive 130 and two stoppers 140 .
  • the installation process of the battery case 100 is as follows: first apply the adhesive 130 to the bottom wall of the accommodating groove 111, then extend one end of the two side plates 120 into the accommodating groove 111 on the same side, and make the two sides A stopper 140 is set on the outside of the adhesive 130 to prevent the adhesive 130 from flowing out of the accommodating groove 111.
  • the reinforcing portion 1202 provided at the end of the side plate 120 protruding into the accommodating groove 111 can be sealed and connected to the A stopper 140, and the reinforcement part 1202 can be snapped to the positioning part 112, so that the side plate 120 is initially positioned on the cover body 110, preventing the side plate 120 from moving in the accommodating groove 111 before the adhesive 130 is cured.
  • the sealing effect is poor, and the ends of the two side plates 120 away from the bottom plate 121 can be firmly sealed and connected to the corresponding accommodating groove 111, and compared with the traditional battery, the battery case 100 can move in the first direction F1 and / or save 10 millimeters (mm) of occupied space in the second direction F2 .
  • a battery 10 provided by an embodiment of the present application includes the above-mentioned battery case 100 .
  • One battery cell 200 can be arranged in the accommodation cavity 1201 of the battery case 100, or a plurality of battery cells 200 can be arranged, and the battery cells 200 can be connected in series, in parallel or in parallel to achieve larger capacity or power.
  • an electric device provided by an embodiment of the present application includes the above-mentioned battery 10 .
  • Electric devices can be but not limited to mobile phones, tablets, laptops, electric toys, electric tools, battery cars, vehicles, ships, spacecraft and so on.
  • the vehicle is a new energy vehicle, and the vehicle may be a pure electric vehicle, or a hybrid vehicle or an extended-range vehicle.
  • a motor 20 is arranged inside the vehicle body, and the motor 20 is electrically connected to the battery 10, and the battery 10 provides electric energy for driving the motor.
  • the motor 20 is connected to the wheels on the vehicle body through a transmission mechanism, thereby driving the vehicle body to move forward.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请涉及一种电池外壳、电池和用电装置。一种电池外壳包括盖体(110)、侧板(120)以及粘接剂(130)。盖体(110)设有容置槽(111)，侧板(120)的一端伸入容置槽(111)内。粘接剂(130)设置于容置槽(111)内，以使侧板(120)伸入容置槽(111)的一端连接于容置槽(111)。

Description

电池外壳、电池和用电装置
交叉引用
本申请引用于2022年1月10日递交的名称为“电池外壳、电池和用电装置”的第202220050564.6号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请涉及电池技术领域，特别是涉及电池外壳、电池和用电装置。
背景技术
目前，为了减少汽油等对环境的污染，电池被广泛应用于车辆、船舶或飞行器等用电装置中，为用电装置提供电力驱动。为了满足用电装置较高的动力需求，一般电池可以包括多个电池单体形成的电池包。
在电池包使用过程中，为保证电池单体在使用过程中不会受到外界水汽及灰尘的污染，通常需要将电池单体密封在箱体内。传统的电池包通过螺栓实现箱体密封，然而螺栓在安装过程中需要一定的安装空间，因此导致使用螺栓实现密封的电池包占用空间较大，进而降低了电池包的能量密度。
发明内容
基于此，有必要针对使用螺栓实现密封的电池包占用空间较大的问题，提供一种电池外壳、电池和用电装置。
根据本申请的一个方面，提供了一种电池外壳，包括盖体、侧板以及粘接剂。盖体设有容置槽，侧板的一端伸入容置槽内。粘接剂设置于容置槽内，以使侧板伸入容置槽的一端连接于容置槽。
本申请的技术方案中，该电池外壳使用时，可将粘接剂设置于容置槽内，以使侧板伸入容置槽的一端连接于容置槽，以便侧板和盖体界定出一用于容纳电芯的容纳腔。另外，该电池外壳中，侧板位于盖体的一侧端部的内侧，使得电池外壳的整体占用空间较小，可减少电池的占用空间。
在其中一个实施例中，还包括设置于容置槽内的止挡部，止挡部挡设于粘接剂面向容置槽的开口的一侧，以限制粘接剂沿开口向容置槽外流动。可防止粘接剂在未固化之前从容置槽内流走，可保证粘接剂的位置，进而保证侧板和盖体密封连接。
在其中一个实施例中，止挡部过盈配合于侧板与容置槽的侧壁之间的间隙内。一方面， 可使侧板更好地固定于容置槽，提高侧板与盖体的连接牢固性；另一方面，可使粘接剂限位于容置槽的底壁和止挡部之间，更好地防止粘接剂在未固化之前流走，进而更好地保证侧板和盖体密封连接。
在其中一个实施例中，电池外壳包括位于侧板沿第一方向的两侧的两个止挡部，且两个止挡部均过盈配合于侧板与容置槽对应的侧壁之间的间隙内；第一方向垂直于侧板。如此，侧板伸入容置槽的一端可被两个止挡部夹紧，使得侧板更好地固定于容置槽，提高侧板与盖体的连接牢固性。也能更好地防止粘接剂在未固化之前流走，进而更好地保证侧板和盖体密封连接。
在其中一个实施例中，侧板伸入容置槽的一端抵接于粘接剂，止挡部沿第二方向的一端也抵接于粘接剂；第二方向平行于侧板。如此，止挡部可挡设于粘接剂的外侧，有利于粘接剂定位于容置槽，也能很好地防止粘接剂在未固化之前流走，有利于侧板伸入容置槽的一端密封连接于容置槽。
在其中一个实施例中，侧板伸入容置槽的一端设有加固部，加固部连接于一止挡部沿第一方向的一侧，第一方向垂直于侧板。可增加侧板与对应的容置槽之间的密封接触面，使侧板更牢固地密封连接于容置槽。
在其中一个实施例中，加固部与侧板一体成型且相对于侧板弯折。可提高加固部与侧板的整体强度，且有利于侧板更牢固地密封连接于容置槽。
在其中一个实施例中，容置槽沿第一方向的外侧设有定位部，定位部连接于加固部，以将侧板伸入容置槽的一端定位于容置槽中。在侧板伸入容置槽的一端连接于容置槽时，可使侧板上的加固部连接于定位部，能使侧板初步定位于盖体，提高盖体和侧板的连接牢固性，防止粘接剂在未固化之前侧板在容置槽内移动而造成密封效果差，以使侧板能牢固地密封连接于容置槽。
在其中一个实施例中，定位部沿第二方向朝远离容置槽的一侧延伸，定位部包括连接于容置槽的连接部，以及连接于连接部远离容置槽一侧的限位部。其中，连接部与限位部界定出用于卡接加固部的卡槽。第二方向平行于侧板。可使侧板上的加固部卡接于卡槽，以便侧板能牢固地密封连接于容置槽。
在其中一个实施例中，限位部沿第二方向抵接于加固部远离容置槽的一侧。在侧板伸入容置槽的一端密封连接于容置槽时，可使侧板上的加固部卡接于卡槽，且能够利用限位部限位于加固部远离容置槽的一侧，更好地对侧板进行初步固定。
在其中一个实施例中，容置槽沿第一方向的外侧设有沿第三方向间隔排布的多个定位部。其中，第一方向、第二方向与第三方向两两垂直。可使侧板上的加固部卡接于至少一个定位部，以保证侧板能够初步定位于盖体，如此，设置多个定位部可以适应更大的加工和安装误差，可提高该电池外壳的安装可靠性。
在其中一个实施例中，侧板伸入容置槽的一端设有加固部，加固部通过粘接剂与容置槽连接。可增加侧板与对应的容置槽之间的密封接触面，使侧板更牢固地密封连接于容置槽。
在其中一个实施例中，容置槽的槽深为4-6毫米(mm)。容置槽的槽深过小，不利于容置粘接剂等，容置槽的槽深过大，占用空间较大，故容置槽的槽深最好设置为4-6毫米(mm)，便于在容置槽内容置粘接剂，且有利于侧板伸入容置槽的一端连接于容置槽。
根据本申请的另一个方面，提供了一种电池，包括上述的电池外壳。
根据本申请的另一个方面，还提供了一种用电装置，包括上述的电池。
附图说明
通过阅读对下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。同时，为了更好地描述和说明这里公开的那些发明的实施例和/或示例，可以参考一幅或多幅附图。用于描述附图的附加细节或示例不应当被认为是对所公开的发明、目前描述的实施例和/或示例以及目前理解的这些发明的最佳模式中的任何一者的范围限制。
图1为根据一个或多个实施例提供的一种车辆的结构示意图。
图2为根据一个或多个实施例提供的电池的结构示意图。
图3为图2的A处的放大示意图。
图4为根据一个或多个实施例提供的电池的爆炸示意图。
图5为根据一个或多个实施例提供的盖体和侧板的局部结构示意图。
图中：1、车辆；10、电池；100、电池外壳；110、盖体；111、容置槽；112、定位部；1121、连接部；1122、限位部；1123、卡槽；120、侧板；1201、容纳腔；1202、加固部；1202a、密接面；121、底板；130、粘接剂；140、止挡部；200、电芯；20、马达；30、控制器；F 1、第一方向；F 2、第二方向；F 3、第三方向。
具体实施方式
下面将结合附图对本申请技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本申请的技术方案，因此只作为示例，而不能以此来限制本申请的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本申请实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。 在本申请实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本申请实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本申请实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本申请实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请实施例的限制。
在本申请实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请实施例中的具体含义。
目前，为了减少汽油等对环境的污染，电池被广泛应用于车辆、船舶或飞行器等用电装置中，为用电装置提供电力驱动。为了满足用电装置较高的动力需求，一般电池可以包括多个电池单体形成的电池包。
传统的电池包括箱体和盖体，盖体盖设于箱体，并将密封圈设置于盖体与箱体之间，以实现盖体密封于箱体，导致传统的电池占用空间较大。
本申请的发明人注意到，传统的电池占用空间较大的原因在于：传统的电池中，箱体的外周面与盖体的外周面相互对齐，以便盖体与箱体之间通过螺栓连接，且密封圈能够设置于盖体与箱体之间，这会导致传统的电池的箱体的体积较大，进而导致传统的电池占用空间较大。
为了解决传统的电池占用空间较大的问题，本申请的发明人经过深入研究，设计了一种盖体与侧板，盖体设置容置槽，侧板的一端能够伸入容置槽内，并利用容置槽内的粘接剂使侧板伸入容置槽的一端连接于容置槽，如此，侧板位于盖体的一侧端部的内侧，使得电池外壳的整体占用空间较小，可减少电池的占用空间。
本申请实施例公开的电池外壳和/或电池可以但不限用于车辆、船舶或飞行器等用电装置中。用电装置可以为但不限于手机、平板、笔记本电脑、电动玩具、电动工具、电瓶车、电动汽车、轮船、航天器等等。其中，电动玩具可以包括固定式或移动式的电动玩具，例如，游戏机、电动汽车玩具、电动轮船玩具和电动飞机玩具等等，航天器可以包括飞机、火箭、航天飞机和宇宙飞船等等。可以使用具备本申请公开的电池等组成该用电装置的电源系统，这样，便于为用电装置提供电力驱动，也能节省用电装置的占用空间。
图1为根据一个或多个实施例提供的一种车辆的结构示意图，车辆1可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1的内部设置电池10。例如，在车辆1的底部或车头或车尾可以设置电池10。电池10可以用于车辆1的供电，例如，电池10可以作为车辆1的操作电源，用于车辆1的电路系统，例如用于车辆1的启动、导航和运行时的工作用电需求。在本申请的另一实施例中，电池10不仅仅可以作为车辆1的操作电源，还可以作为车辆1的驱动电源，替代或部分替代燃油或天然气为车辆1提供驱动力。
车辆1的内部还可以设置马达20以及控制器30，控制器30用来控制电池10为马达20的供电，例如，用于车辆1的启动、导航和行驶时的工作用电需求。
图2示出了本申请一实施例中的电池10的结构示意图。
在一些实施例中，参阅图2，本申请一实施例提供的一种电池10，包括电池外壳100。电池包含的电池单体数量可以是一个也可以是多个。电池10可以是电池包，也可以是电池模组。
在一些实施例中，请参阅图2，并结合参阅图3及图4，本申请一实施例提供的电池外壳100，包括盖体110、侧板120以及粘接剂130。
盖体110设有容置槽111，侧板120的一端伸入容置槽111内，粘接剂130设置于容置槽111内，以使侧板120伸入容置槽111的一端连接于容置槽111。该电池外壳100使用时，可将粘接剂130设置于容置槽111内，以使侧板120伸入容置槽111的一端连接于容置槽111，以便侧板120和盖体110界定出一用于容纳电芯200的容纳腔1201。另外，该电池外壳100中，侧板120位于盖体110的一侧端部的内侧，使得电池外壳100的整体占用空间较小，可减少电池10的占用空间。
在一些实施例中，粘接剂130包括涂敷于容置槽111的底壁的胶水，使用时，可先将胶水涂敷于容置槽111的底壁，然后再使侧板120的一端伸入容置槽111内，待胶水固化后，可使侧板120伸入容置槽111的一端连接于容置槽111。
在一些实施例中，侧板120的数量可以为两个，两个侧板120沿第一方向F 1相对且间隔设置，两个侧板120之间设有沿第二方向F 2与盖体110彼此相对设置的底板121。容置槽111具有沿第二方向F 2朝向底板121的开口，以便侧板120远离底板121的一端伸入经过 开口伸入对应的容置槽111内，然后再利用粘接剂130使侧板120伸入同一侧的容置槽111的一端连接于同一侧的容置槽111。
其中，第一方向F 1与第二方向F 2彼此垂直，且第一方向F 1垂直于侧板120，第二方向F 2平行于侧板120。如图2所示，第一方向F 1为左右方向，第二方向F 2为上下方向，侧板120与对应的容置槽111位于盖体110的同一侧，也就是说，左侧的侧板120远离底板121的一端伸入左侧的容置槽111，右侧的侧板120远离底板121的一端伸入右侧的容置槽111。
容纳腔1201由盖体110、底板121和两个侧板120围设形成，可在容纳腔1201内放置一个电芯200，也可在容纳腔1201内放置多个电芯200，并在两个侧板120之间设置密封连接于盖体110的侧封板，以便提高电池10的密封性，以使电芯200与外界环境隔离。
如图2及图3所示，盖体110沿第一方向F 1的两端分别弯折，以形成容置槽111。容置槽111的开口朝下设置，容置槽111的底壁朝下设置。
在一些实施例中，请参阅图2及图3，并结合参阅图4，电池外壳100还包括设置于容置槽111内的止挡部140，止挡部140挡设于粘接剂130面向容置槽111的开口的一侧，以限制粘接剂130沿开口向容置槽111外流动。
止挡部140用于限制粘接剂130经开口向容置槽111外流动。
可防止粘接剂130在未固化之前从容置槽111内流走，可保证粘接剂130的位置，进而保证侧板120和盖体110密封连接，以提高电池外壳100的密封性。
在一些实施例中，请参阅图2、图3及图4，止挡部140过盈配合于侧板120与容置槽111的侧壁之间的间隙内。
也就是说，止挡部140沿第一方向F 1的尺寸大于该间隙第一方向F 1的尺寸。
一方面，可使侧板120更好地固定于容置槽111，提高侧板120与盖体110的连接牢固性；另一方面，可使粘接剂130限位于容置槽111的底壁和止挡部140之间，更好地防止粘接剂130在未固化之前流走，进而更好地保证侧板120和盖体110密封连接。
在一些实施例中，请参阅图2、图3及图4，电池外壳100包括位于侧板120沿第一方向F 1的两侧的两个止挡部140，且两个止挡部140均过盈配合于侧板120与容置槽111对应的侧壁之间的间隙内。
两个止挡部140位于侧板120沿第一方向F 1的两侧，如图3所示，两个止挡部140分别位于侧板120沿的左右两侧。
可以理解，两个止挡部140沿第一方向F 1的间距小于侧板120伸入容置槽111的一端沿第一方向F 1的尺寸，以使止挡部140过盈配合于侧板120与容置槽111对应的侧壁之间的间隙内。
侧板120伸入容置槽111的一端可被两个止挡部140夹紧，使得侧板120更好地固定于容置槽111，提高侧板120与盖体110的连接牢固性。也能更好地防止粘接剂130在未固化 之前流走，进而更好地保证侧板120和盖体110密封连接。
在一些实施例中，请参阅图3，侧板120伸入容置槽111的一端抵接于粘接剂130，止挡部140沿第二方向F 2的一端也抵接于粘接剂130。
可以理解，两个止挡部140均位于粘接剂130朝向开口一侧。
如此，止挡部140可挡设于粘接剂130的外侧，有利于粘接剂130定位于容置槽111，也能很好地防止粘接剂130在未固化之前流走，有利于侧板120伸入容置槽111的一端密封连接于容置槽111。
在一些实施例中，请参阅图3，并结合参阅图5，侧板120伸入容置槽111的一端设有加固部1202，加固部1202连接于一止挡部140沿第一方向F 1的一侧，其中，第一方向F 1垂直于侧板120。
可以理解，止挡部140沿第一方向F 1的一侧抵接于加固部1202，如此，可增加侧板120与对应的容置槽111之间的密封接触面，使侧板120更牢固地密封连接于容置槽111。
在一些实施例中，请参阅图3及图5，加固部1202与侧板120一体成型且相对于该侧板120弯折。
加固部1202沿第二方向F 2朝远离容置槽111的一侧延伸，如图3所示，加固部1202相对于侧板120弯折且向下延伸，方便加固部1202连接于止挡部140。
如此，可提高加固部1202与侧板120的整体强度，且有利于侧板120更牢固地密封连接于容置槽111。
在一些实施例中，请参阅图3及图5，加固部1202位于两侧的止挡部140之间，且密封连接于一止挡部140沿第一方向F 1的一侧。
那么，利用密封连接于止挡部140的加固部1202，可增加侧板120与对应的容置槽111之间的密封接触面，使侧板120更牢固地密封连接于容置槽111。
在一些实施例中，加固部1202具有朝向止挡部140的密接面1202a，利用该密接面1202a能提高侧板120与对应的容置槽111之间的密封接触面。
在一些实施例中，侧板120伸入容置槽111的一端与加固部1202连接而成的整体过盈设置于两个止挡部140之间，可使侧板120伸入容置槽111的一端更好地密封连接于容置槽111。
在一些实施例中，请参阅图2及图3，容置槽111沿第一方向F 1的外侧设有定位部112，定位部112连接于加固部1202，以将侧板120伸入容置槽111的一端定位于容置槽111中。
可利用定位部112将侧板120伸入容置槽111的一端定位于容置槽111中。
在侧板120伸入容置槽111的一端连接于容置槽111时，可使侧板120上的加固部1202连接于定位部112，能使侧板120初步定位于盖体110，提高盖体110和侧板120的连接牢固 性，也有利于初步定位的侧板120与容置槽111之间的粘接剂130固化，防止粘接剂130在未固化之前侧板120在容置槽111内移动而造成密封效果差，以使侧板120能牢固地密封连接于容置槽111。
在一些实施例中，请参阅图2、图3及图5，定位部112沿第二方向F 2朝远离容置槽111的一侧延伸，定位部112包括连接于容置槽111的连接部1121，以及连接于连接部1121远离容置槽111一侧的限位部1122。连接部1121与限位部1122界定出用于卡接加固部1202的卡槽1123。第二方向F 2平行于侧板120。
可使定位部112与加固部1202卡接。
该定位部112设置于容置槽111沿第一方向F 1的外侧，也就是该定位部112设置于容置槽111沿远离盖体110的第一方向F 1的一侧。如图2及图3所示，位于盖体110左侧的定位部112设置于容置槽111的左侧，位于盖体110右侧的定位部112设置于容置槽111的右侧。且定位部112相对于容置槽111向下延伸。
在侧板120伸入容置槽111的一端连接于容置槽111时，可使侧板120上的加固部1202卡接于卡槽1123，能使侧板120初步定位于盖体110，提高盖体110和水冷板框的连接牢固性，防止粘接剂130在未固化之前侧板120在容置槽111内移动而造成密封效果差，以使侧板120能牢固地密封连接于容置槽111。
在一些实施例中，请参阅图3及图5，限位部1122沿第二方向F 2抵接于加固部1202远离容置槽111的一侧。
在侧板120伸入容置槽111的一端连接于容置槽111时，可使侧板120上的加固部1202卡接于卡槽1123，且能够利用限位部1122限位于加固部1202远离容置槽111的一侧，更好地对侧板120进行初步固定，更有利于初步定位的侧板120与容置槽111之间的粘接剂130固化，以使侧板120更牢固地密封连接于容置槽111。
可以理解，限位部1122呈倒扣结构，以使侧板120上的加固部1202限位固定于容置槽111与限位部1122之间，有利于侧板120更牢固地密封连接于容置槽111。
在一些实施例中，请参阅图2及图4，容置槽111沿第一方向F 1的外侧设有沿第三方向F 3间隔排布的多个定位部112，其中，第一方向F 1、第二方向F 2与第三方向F 3两两垂直。
需要说明的是，第三方向F 3平行于底板121，如图4所示，第一方向F 1为左右方向，第二方向F 2为上下方向，第三方向F 3为前后方向，那么，左侧的容置槽111的左侧设有沿前后方向设置的多个定位部112，右侧的容置槽111的右侧设有沿前后方向设置的多个定位部112。
在侧板120伸入容置槽111的一端连接于容置槽111时，可使侧板120上的加固部1202卡接于至少一个定位部112，以保证侧板120能够初步定位于盖体110，如此，设置多个定位部112可以适应更大的加工和安装误差，可提高该电池外壳100的安装可靠性。
在一些实施例中，多个定位部112排列形成梳齿状结构，以便侧板120上的加固部1202卡接于至少一定位部112。
在一些实施例中，侧板120伸入容置槽111的一端设有加固部1202，加固部1202通过粘接剂130与容置槽111连接。可增加侧板120与对应的容置槽111之间的密封接触面，使侧板120更牢固地密封连接于容置槽111。
在一些实施例中，容置槽111的槽深为4-6毫米(mm)。
容置槽111的槽深是指容置槽111沿第二方向F 2的深度。
容置槽111的槽深设置为4-6毫米(mm)，容置槽111的槽深过小，不利于容置粘接剂130等，容置槽111的槽深过大，占用空间较大，故容置槽111的槽深最好设置为4-6毫米(mm)，便于在容置槽111内容置粘接剂130和/或止挡部140，且有利于侧板120伸入容置槽111的一端连接于容置槽111。
在一些实施例中，容置槽111的槽深为5毫米(mm)。
在一些实施例中，加固部1202的沿第二方向F 2的长度为3-5毫米(mm)，一方面，加固部1202能够很好地密封连接于一止挡部140，可增加侧板120与对应的容置槽111之间的密封接触面。另一方面，能增加加固部1202和定位部112的结合牢度，提高该电池外壳100的安装可靠性。
在一些实施例中，请参阅图5，容置槽111具有沿第二方向F 2与开口彼此相对设置的封闭端，开口的尺寸大于封闭端的尺寸，在保证侧板120牢固地密封连接于对应的容置槽111的同时，有利于减小盖体110沿第一方向F 1的尺寸。
在一些实施例中，粘接剂130呈锥形结构，粘接剂130靠近侧板120的一端的尺寸大于粘接剂130远离侧板120的一端的尺寸，以提高粘接剂130与侧板120的接触面积，进而使侧板120更好地密封连接于对应的容置槽111。
在一些实施例中，参阅图2及图3，电池外壳100包括盖体110、两个侧板120、粘接剂130和两个止挡部140。该电池外壳100的安装过程如下：先将粘接剂130涂敷于容置槽111的底壁，然后将两个侧板120的一端均伸入同一侧的容置槽111内，并使两个止挡部140挡设于粘接剂130的外侧，以防止粘接剂130流出容置槽111外，同时，侧板120伸入容置槽111的一端设置的加固部1202能够密封连接于一止挡部140，且加固部1202能够卡接于定位部112，以使侧板120初步定位于盖体110，防止粘接剂130在未固化之前侧板120在容置槽111内移动而造成密封效果差，可使两个侧板120远离底板121的一端均牢固地密封连接于对应的容置槽111，且相较于传统的电池，该电池外壳100能在第一方向F 1和/或第二方向F 2节省10毫米(mm)的占用空间。
在一些实施例中，参阅图2，本申请一实施例提供的一种电池10，包括上述的电池外壳100。电池外壳100的容纳腔1201内可设置一个电芯200，也可设置多个电芯200，电芯 200间通过串联、并联或混联的方式连接以实现较大的容量或功率。
在一些实施例中，本申请一实施例提供的一种用电装置，包括上述的电池10。用电装置可以为但不限于手机、平板、笔记本电脑、电动玩具、电动工具、电瓶车、车辆、轮船、航天器等等。其中，车辆为新能源汽车，车辆可以是纯电动汽车，也可以是混合动力汽车或增程式汽车。在车辆主体内设置有马达20，马达20与电池10电连接，由电池10为驱动电机提供电能，马达20通过传动机构与车辆主体上的车轮连接，从而驱动车辆主体行进。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (15)

  1. 一种电池外壳，其中，包括：
    盖体(110)，设有容置槽(111)；
    侧板(120)，所述侧板(120)的一端伸入所述容置槽(111)内；以及
    粘接剂(130)，设置于所述容置槽(111)内，以使所述侧板(120)伸入所述容置槽(111)的一端连接于所述容置槽(111)。
  2. 根据权利要求1所述的电池外壳，其中，还包括设置于所述容置槽(111)内的止挡部(140)，所述止挡部(140)挡设于所述粘接剂(130)面向所述容置槽(111)的开口的一侧，以限制所述粘接剂(130)沿所述开口向所述容置槽(111)外流动。
  3. 根据权利要求2所述的电池外壳，其中，所述止挡部(140)过盈配合于所述侧板(120)与所述容置槽(111)的侧壁之间的间隙内。
  4. 根据权利要求2所述的电池外壳，其中，所述电池外壳包括位于所述侧板(120)沿第一方向的两侧的两个所述止挡部(140)，且两个所述止挡部(140)均过盈配合于所述侧板(120)与所述容置槽(111)对应的侧壁之间的间隙内；
    所述第一方向垂直于所述侧板(120)。
  5. 根据权利要求2所述的电池外壳，其中，所述侧板(120)伸入所述容置槽(111)的一端抵接于所述粘接剂(130)，所述止挡部(140)沿第二方向的一端也抵接于所述粘接剂(130)；
    所述第二方向平行于所述侧板(120)。
  6. 根据权利要求2所述的电池外壳，其中，所述侧板(120)伸入所述容置槽(111)的一端设有加固部(1202)；
    所述加固部(1202)连接于一所述止挡部(140)沿第一方向的一侧；
    所述第一方向垂直于所述侧板(120)。
  7. 根据权利要求6所述的电池外壳，其中，所述加固部(1202)与所述侧板(120)一体成型且相对于所述侧板(120)弯折。
  8. 根据权利要求6所述的电池外壳，其中，所述容置槽(111)沿所述第一方向的外侧设有定位部(112)；
    所述定位部(112)连接于所述加固部(1202)，以将所述侧板(120)伸入所述容置槽(111)的一端定位于所述容置槽(111)中。
  9. 根据权利要求8所述的电池外壳，其中，所述定位部(112)沿第二方向朝远离所述容置槽(111)的一侧延伸；
    所述定位部(112)包括连接于所述容置槽(111)的连接部(1121)，以及连接于所述连接部(1121)远离所述容置槽(111)一侧的限位部(1122)；
    所述连接部(1121)与所述限位部(1122)界定出用于卡接所述加固部(1202)的卡槽(1123)；
    所述第二方向平行于所述侧板(120)。
  10. 根据权利要求9所述的电池外壳，其中，所述限位部(1122)沿所述第二方向抵接于所述加固部(1202)远离所述容置槽(111)的一侧。
  11. 根据权利要求8-10任一项所述的电池外壳，其中，所述容置槽(111)沿所述第一方向的外侧设有沿第三方向间隔排布的多个所述定位部(112)；
    所述第一方向、第二方向和所述第三方向两两垂直。
  12. 根据权利要求1-11任一项所述的电池外壳，其中，所述侧板(120)伸入所述容置槽(111)的一端设有加固部(1202)，所述加固部(1202)通过所述粘接剂(130)与所述容置槽(111)连接。
  13. 根据权利要求1-12任一项所述的电池外壳，其中，所述容置槽(111)的槽深为4-6mm。
  14. 一种电池，其中，包括如权利要求1-13任一项所述的电池外壳(100)。
  15. 一种用电装置，其中，包括如权利要求14所述的电池(10)。
PCT/CN2022/144105 2022-01-10 2022-12-30 电池外壳、电池和用电装置 WO2023131082A1 (zh)

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JP2011194982A (ja) * 2010-03-18 2011-10-06 Mitsubishi Motors Corp 車両用バッテリーケース
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CN111372399A (zh) * 2018-12-26 2020-07-03 比亚迪股份有限公司 壳体及电子设备
CN113707979A (zh) * 2021-08-27 2021-11-26 深圳市海雅达数字科技有限公司 一种电池结构
CN216872136U (zh) * 2022-01-10 2022-07-01 宁德时代新能源科技股份有限公司 电池外壳、电池和用电装置

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CN203339230U (zh) * 2013-06-07 2013-12-11 恒动能源（深圳）有限公司 一种用于移动通信设备的电池装置及电池盒
CN111372399A (zh) * 2018-12-26 2020-07-03 比亚迪股份有限公司 壳体及电子设备
CN113707979A (zh) * 2021-08-27 2021-11-26 深圳市海雅达数字科技有限公司 一种电池结构
CN216872136U (zh) * 2022-01-10 2022-07-01 宁德时代新能源科技股份有限公司 电池外壳、电池和用电装置

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