CN215988992U - Separator, battery module and device - Google Patents

Abstract

The application discloses division board, battery module and device. The isolation plate is used for the battery module and at least comprises two splicing pieces which are arranged in parallel, and the splicing pieces are respectively used for covering one battery unit of the battery module; a male head and a female head are respectively arranged on two sides of the splicing piece, the male head comprises a first buckle, and the female head comprises a second buckle with a groove; the first buckle and the second buckle are connected in an interference clamping mode to enable the adjacent two splicing pieces to be spliced mutually, the groove is used for providing a deformation space of the first buckle and the second buckle when the first buckle and the second buckle are connected in the interference clamping mode, and the expansion force of the battery module is absorbed. The division board of this application embodiment not only can splice wantonly for satisfying the size of requirement according to the quantity of the battery unit of battery module, can also provide the deformation space of the splice that sets up side by side in the division board when the concatenation to can absorb the bulging force of battery module.

Description

Separator, battery module and device

Technical Field

The application relates to the field of batteries, in particular to a partition board, a battery module and a device.

Background

With the development of electric vehicles, batteries have become a key to the sustainable development of the automotive industry. For electric vehicles, battery technology is an important factor in its development.

Currently, products of battery modules have various systems and sizes, and have different structures according to the number of battery cells and the different series and parallel connection manners, resulting in various sizes of separators insulatively connected to the respective battery cells. If each kind of isolation plate is specially developed with a mold, the mold opening cost and the material management cost of the mold are greatly increased. Moreover, in the prior art, the isolation plate is mostly a one-piece isolation plate, which can cause the expansion of the battery module and the isolation plate to generate a large relative displacement, even cause the bus bar on the isolation plate to be damaged and deformed.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, this application provides a division board, battery module and device, and this division board not only can splice according to the quantity of battery cell for satisfying the arbitrary size of requirement, greatly reduced mould die sinking cost and material management cost, can also provide the deformation space of the splice that sets up side by side in the division board when the concatenation to can absorb battery module's bulging force.

In a first aspect, the present application provides a separator for a battery module, where the separator includes at least two splicers arranged in parallel, and the splicers are respectively used to cover one battery unit of the battery module; a male head and a female head are respectively arranged on two sides of the splicing piece, the male head comprises a first buckle, and the female head comprises a second buckle with a groove; the first buckle and the second buckle are connected in an interference clamping mode to enable the adjacent two splicing pieces to be spliced mutually, the groove is used for providing a deformation space of the first buckle and the second buckle when the first buckle and the second buckle are connected in the interference clamping mode, and the expansion force of the battery module is absorbed.

In the technical scheme of this application embodiment, because two adjacent splicers can pass through first buckle with second buckle interference joint is connected and is spliced each other for can use splice of arbitrary quantity to splice for satisfying the division board of required arbitrary size according to the quantity of the battery unit of battery module, greatly reduced mould die sinking cost and material management cost. Simultaneously, above-mentioned fluting is in first buckle with when second buckle interference joint is connected, the fluting can play the guide effect to can increase the lock power of first buckle and second buckle, and above-mentioned fluting can also utilize the deformation volume of fluting self to provide above-mentioned first buckle with the deformation space of second buckle when first buckle and second buckle interference joint are connected, in addition the splice is used for covering respectively a battery cell of battery module makes above-mentioned deformation space can also absorb the bulging force of battery module, thereby produces relative displacement with the division board when avoiding battery module inflation, can also avoid the impaired deformation of busbar on the division board.

In some embodiments, the male head further comprises a male head body; the female head also comprises a female head body; when two adjacent splicers splice each other, public first body with female first body is connected through the mode of embedding. Through public first body with female first body is connected through the mode of embedding, can further increase two joint strength when splicer splices each other.

In some embodiments, the male body extends to form the first catch; the female body extends to form the second buckle. Through extending by public first body and forming first buckle, can make public first body and first buckle formula as an organic whole, the installation of being convenient for, through extending by female first body and forming the second buckle, can make female first body and second buckle formula as an organic whole, the installation of being convenient for helps realizing the wholeization design of separator.

In some embodiments, the male body has a recess in a thickness direction of the male body, and the female body has a protrusion in the thickness direction of the female body, the protrusion being capable of fitting into the recess. Through embedding the convex part into the concave part, the male head body is connected with the female head body in an embedding mode, a specific connection mode of the male head body and the female head body is provided, and design cost is low.

In some embodiments, the number of the male heads is at least two, and the male heads are respectively a first male head comprising a first male head body and a second male head comprising a second male head body; the number of the female heads is at least two, and the female heads are respectively a first female head comprising a first female head body and a second female head comprising a second female head body; the first male body is provided with a concave part along the thickness direction of the first male body, and the first female body is provided with a convex part along the thickness direction of the first female body; the second male body is provided with a convex part along the thickness direction of the second male body, and the second female body is provided with a concave part along the thickness direction of the second female body. Through the design, when two adjacent splicing members are spliced with each other, the first male head body is positioned below the first female head body, and the second male head body is positioned above the second female head body, so that when the splicing members are stressed in the thickness direction of the splicing members along the direction perpendicular to the splicing members, the connection strength of the splicing members during splicing with each other can be further enhanced, and the splicing members are prevented from being separated from each other when stressed in the thickness direction of the splicing members along the direction perpendicular to the splicing members.

In some embodiments, the side of the splice having the male end further has a first locating feature, and the side of the splice having the female end further has a second locating feature; when two adjacent splicing pieces are spliced with each other, the second positioning structure is embedded into the first positioning structure to position the two adjacent splicing pieces. When two adjacent splicing pieces are spliced with each other, the second positioning structure is embedded into the first positioning structure to realize the positioning of the two adjacent splicing pieces, so that when the two adjacent splicing pieces are spliced together, the two adjacent splicing pieces can be accurately positioned, and the splicing efficiency of splicing the two splicing pieces together is favorably improved.

In some embodiments, the first positioning structure is a positioning hole and the second positioning structure is a positioning pin. The design cost of the positioning holes and the positioning pins is low, so that the cost of the isolation plate can be reduced.

In some embodiments, the positioning hole is formed by extending the male head body, so that the structural space and the cost can be saved.

In some embodiments, the first locating structure is a locating groove and the second locating structure is a locating projection. The design cost of the positioning groove and the positioning bulge is low, so that the cost of the partition plate can be reduced.

In a second aspect, the present application further provides a battery module, including: a frame having a receiving cavity; at least two battery units accommodated in the accommodating cavity; in the separator according to any of the above embodiments, the at least two juxtaposed splices respectively cover one of the battery cells; and the bus bar is arranged on the isolation plate and used for electrically connecting at least two battery units.

In the technical scheme of this application embodiment, because battery module has included the division board of above arbitrary one embodiment. Therefore, two adjacent splicing pieces in the isolation plate can be spliced mutually through the interference clamping connection of the first buckle and the second buckle, so that the isolation plate with any size meeting the requirement can be spliced by using any number of splicing pieces according to the number of battery units of the battery module, and the die opening cost and the material management cost of the die are greatly reduced. Simultaneously, above-mentioned fluting is in first buckle with when second buckle interference joint is connected, the fluting can play the guide effect to can increase the lock power of first buckle and second buckle, and above-mentioned fluting can also utilize the deformation volume of fluting self to provide above-mentioned first buckle with the deformation space of second buckle when first buckle and second buckle interference joint are connected, in addition the splice is used for covering respectively a battery cell of battery module makes above-mentioned deformation space can also absorb the bulging force of battery module, thereby produces relative displacement with the division board when avoiding battery module inflation, can also avoid the impaired deformation of busbar on the division board.

In a third aspect, the present application further provides a device using a battery module as a power supply, where the battery module is the battery module according to any one of the above embodiments.

In the technical solution of the embodiment of the present application, since the device using the battery module as a power supply includes the battery module of any one of the above embodiments, the battery module includes the separator of any one of the above embodiments. Therefore, two adjacent splicing pieces in the isolation plate can be spliced mutually through the interference clamping connection of the first buckle and the second buckle, so that the isolation plate with any size meeting the requirement can be spliced by using any number of splicing pieces according to the number of battery units of the battery module, and the die opening cost and the material management cost of the die are greatly reduced. Simultaneously, above-mentioned fluting is in first buckle with when second buckle interference joint is connected, the fluting can play the guide effect to can increase the lock power of first buckle and second buckle, and above-mentioned fluting can also utilize the deformation volume of fluting self to provide above-mentioned first buckle with the deformation space of second buckle when first buckle and second buckle interference joint are connected, in addition the splice is used for covering respectively a battery cell of battery module makes above-mentioned deformation space can also absorb the bulging force of battery module, thereby produces relative displacement with the division board when avoiding battery module inflation, can also avoid the impaired deformation of busbar on the division board.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the present invention;

fig. 2 is a schematic structural view of a battery module according to some embodiments of the present invention;

FIG. 3 is an isometric view of a spacer provided by some embodiments of the present invention;

FIG. 4 is a schematic structural view of a separator according to some embodiments of the utility model;

fig. 5 is an enlarged view of the mark a in fig. 4.

The reference numbers in the detailed description are as follows:

100-a vehicle; 10-a battery module; 21-a frame; 22-a battery cell; 23-a separator plate; 24-a bus bar; 211-end plate; 212-a cuff; 231-a splice; 232-a first separator plate; 233-a second separator plate; 2311-male; 2312-female head; 23111-first catch; 23122-second catch; 23121-slotting; 23112-male body; 23123-female body; b-a recess; a C-convex part; 2313-a first locating feature; 2314-a second locating feature; 011-first male body; 012-a second male body; 013-first female body; 014-second female body.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, mechanism, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

At present, the application of the power battery is more and more extensive from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and a plurality of fields such as military equipment and aerospace. With the development of electric vehicles, military equipment, aerospace and the like, batteries become the key to the sustainable development of the automobile industry. For electric vehicles, military equipment, aerospace and the like, battery technology is an important factor related to the development of the electric vehicles.

The present inventors have noted that, in a production process of lithium ion battery formation, since a product of a battery module has various systems and sizes, the product has different structures according to the number of battery cells and the series and parallel connection modes. Therefore, it may result in various sizes of the separators insulatively connected to the respective battery cells. If each kind of isolation plate is specially developed with a mold, the mold opening cost and the material management cost of the mold are greatly increased. Moreover, in the prior art, the isolation plate is mostly a one-piece isolation plate, which can cause the expansion of the battery module and the isolation plate to generate a large relative displacement, even cause the bus bar on the isolation plate to be damaged and deformed.

In order to solve the cost problem of the partition plate, the applicant researches and discovers a partition plate device, and particularly relates to a partition plate device which can be spliced randomly according to the number of battery units of a battery module. The components comprise a first splicing piece and a second splicing piece; the first splicing piece is used for covering one battery unit of the module and comprises a first body part and a first connecting part arranged on the peripheral side of the first body part; the second splicing piece is arranged side by side with the first splicing piece and is used for covering another battery unit of the module, and the second splicing piece comprises a second body part and a second connecting part arranged on the periphery of the second body part; the first splicing piece and the second splicing piece are spliced with each other through the matching of the first connecting part and the second connecting part. The number of the battery units which can be mainly used by the design scheme is the same as the number of the isolation plates, so that the structure is simple, and the assembly and the disassembly are convenient. However, the isolation device has the following technical problems: 1. the scheme needs to be spliced on line when the battery pack is assembled, so that equipment and human resources in a factory are occupied. 2. In the scheme, the busbar is positioned only by one positioning hole on the isolation plate, deflection is easy to occur, interference with other parts is caused, and the positioning precision of the busbar is insufficient. 3. The stability of the electrical connection between the modules is not enough, so that the two battery cores generate large displacement when expanding, and the bus bar can be damaged and deformed. 4. Connection strength is not enough between the division board, leads to the division board if splice into integral type battery connected system under the line, easily scatters the frame when transporting and hoist and mount. The applicant has also found an interlocking assembly connection between spacer plates. The parts comprise a male head formed on the first isolation plate and a female head formed on the second isolation plate, and the male head and the female head are connected in a clamping manner through a buckle; connect first division board and second division board through the interlocking subassembly, in picking up, transporting, assembling process to first group battery and second group battery, the interlocking subassembly can restrict the position displacement of two group batteries, prevents that two group batteries from producing great displacement to effectively reduce the external force that the busbar received, prevent the impaired deformation of busbar, and then have, improve the stability of battery inter block electricity connection. However, this solution also has the following technical problems: the expansion amount of the battery core cannot be absorbed: the busbar and the isolation plate have no buffer structure, and the busbar is easy to break when the deformation is large during the circular expansion of the battery core.

Based on the consideration, in order to solve the problems, through deep research, the applicant designs an isolation plate, a battery module and a device, the isolation plate can be spliced into any size meeting requirements according to the number of battery units, the die opening cost and the material management cost of a die are greatly reduced, a deformation space of splicing pieces arranged in parallel in the isolation plate can be provided during splicing, and the expansion force of the battery module can be absorbed.

The battery module mentioned in the present application may be generally used to manufacture a battery. The battery may include a lithium ion secondary battery, a lithium ion primary battery, a lithium sulfur battery, a sodium lithium ion battery, a sodium ion battery, a magnesium ion battery, or the like, which is not limited in the embodiments of the present application.

According to some embodiments of the present invention, there is provided an apparatus using a battery module as a power source. The device may be, for example, but not limited to, a vehicle, a vessel, or an aircraft, etc. As shown in fig. 1, fig. 1 is a schematic structural diagram of a vehicle according to some embodiments of the present invention; which includes a vehicle main body and a battery module 10. The battery module 10 is provided in a vehicle body. The vehicle 100 may be a pure electric vehicle, a hybrid electric vehicle, or a range-extended vehicle. The vehicle body is provided with a driving motor electrically connected to the battery module 10. The battery module 10 supplies power to the driving motor. The driving motor is connected with wheels on the vehicle body through a transmission mechanism, so that the automobile is driven to move. Alternatively, the battery module 10 may be horizontally disposed at the bottom of the vehicle body. There are various ways of disposing the battery module 10, and in some alternative embodiments, the battery module 10 may be disposed in the box. The number of the battery modules 10 is one or more. One or more battery modules 10 are arranged in a case. The type of the case is not limited. The box body can be a frame-shaped box body, a disc-shaped box body or a box-shaped box body and the like. Alternatively, the case may include a lower case for accommodating the battery module 10 and an upper case covering the lower case. It is understood that the battery module may also be the battery module 10, i.e., the battery module 10 is directly provided to the vehicle body.

According to some embodiments of the present invention, there is provided a battery module 10, as shown in fig. 2, and fig. 2 is a schematic structural view of the battery module 10 according to some embodiments of the present invention. As shown in fig. 2, the battery module 10 includes: a frame 21 having a receiving cavity. And at least two battery units 22 accommodated in the accommodating cavities. The isolation plate 23 at least includes two parallel splicers, and the at least two parallel splicers respectively cover one battery unit. And a bus bar 24 provided on the separator 23 for electrically connecting at least two battery cells 22.

The frame 21 may be disposed in various ways. For example, the frame 21 may include a pair of end plates 211 and a band 212 forming a receiving cavity, the pair of end plates 211 being disposed at both ends of the two or more battery cells 22, and the pair of end plates 211 being connected with the separator 23, and the band 212 being disposed around the pair of end plates 211 and the two or more battery cells 22. For example, the frame 21 includes a pair of end plates 211 and side plates (not shown in the drawings) forming a receiving cavity, the pair of end plates 211 are disposed at both ends of the two or more battery cells 22, and the pair of end plates 211 are connected to the partition plate 23. For another example, the frame 21 includes a housing and a cover plate covering the housing, and the partition plate 23 is connected to the cover plate.

The battery modules 10 may be divided into a plurality of rows and a plurality of sizes according to the power requirements of the battery modules 10, the number of the battery cells 22 of each of the series of battery modules 10 is different, and the separators 23 have different structures according to the number of the battery cells 22. In order to reduce the mold development cost of the partition plate 23, the partition plate 23 provided by the embodiment of the utility model can be manufactured by splicing a plurality of splicing pieces.

According to some embodiments of the present invention, there is provided a separator plate 23, as shown in fig. 3 to 5, fig. 3 being an isometric view of a separator plate 23 provided in some embodiments; FIG. 4 is a schematic diagram of some embodiments of a separator 23; fig. 5 is an enlarged view of the mark a in fig. 4. Referring to fig. 3 to 5, the separator 23 may be used for the battery modules 10 in fig. 2, with the number of battery cells 22 being different for each series of battery modules 10. The separator 23 at least includes two splices 231 arranged in parallel, and the splices 231 are respectively used for covering one battery unit 22 of the battery module 10; the splice 231 has a male 2311 and a female 2312 on both sides, respectively, the male 2311 includes a first catch 23111, the female 2312 includes a second catch 23122 having a slot 23121; first and second tabs 23111 and 23122 are in interference snap connection to enable two adjacent splicing elements 231 to splice with each other, and the slot 23121 is used for providing deformation space for the first and second tabs 23111 and 23122 when the first and second tabs 23111 and 23122 are in interference snap connection. For example, referring to fig. 5, the orthographic projection of the first buckle 23111 along the height direction of the first buckle 23111 is an obtuse triangle, and the extension of the first buckle 23111 faces the splicing element 231. The orthographic projection of the second buckle 23122 along the height direction of the second buckle 23122 is an obtuse triangle, and the extending part of the second buckle 23122 faces the splicing element 231. During interference fit of first and second snaps 23111, 23122, slot 23121 deforms to provide room for the first and second snaps 23111, 23122 to deform.

It should be noted that, in the actual design process, the isolation plate 23 may further include a first isolation plate 232 and a second isolation plate 233 respectively disposed at two sides of the plurality of splicing elements 231. The first separator 232 serves to cover the battery cells 22 of one end of the battery module 10, and the second separator 233 serves to cover the battery cells 22 of the other end of the battery module 10. In the technical scheme of this application embodiment, because two adjacent splicers 231 can be connected through first buckle 23111 and second buckle 23122 interference joint and splice each other for can use splice 231 of arbitrary quantity to splice for satisfying the division board 23 that requires arbitrary size according to the quantity of the battery unit 22 of battery module 10, greatly reduced mould die sinking cost and material management cost. Meanwhile, when the first buckle 23111 and the second buckle 23122 are in interference clamping connection, the slot 23121 can play a guiding role in the slot 23121, and can increase the buckling force of the first buckle 23111 and the second buckle 23122, and when the first buckle 23111 and the second buckle 23122 are in interference clamping connection, the slot 23121 can provide a deformation space for the first buckle 23111 and the second buckle 23122 by using the deformation amount of the slot 23121, and in addition, the splicing pieces 231 are respectively used for covering one battery unit 22 of the battery module 10, so that the deformation space can also absorb the expansion force of the battery module 10, and therefore, the battery module 10 is prevented from generating relative displacement with the partition plate 23 when expanding, and the bus bar 24 on the partition plate 23 is prevented from being damaged and deformed.

According to some embodiments of the present application, optionally, referring to fig. 3-5, the male head 2311 of the present embodiment further comprises a male head body 23112; the female head 2312 further comprises a female head body 23123; when two adjacent splicing pieces 231 are spliced with each other, the male body 23112 and the female body 23123 are connected in an embedded mode.

In the technical scheme of this application embodiment, be connected through the mode of embedding through public first body 23112 and female first body 23123, joint strength when can further increase two splicers 231 splice each other.

In some embodiments, optionally, referring to fig. 3-5, the male body 23112 of the present embodiment extends to form a first catch 23111; female body 23123 extends to form a second catch 23122. By extending the male body 23112 to form the first buckle 23111, the male body 23112 and the first buckle 23111 can be integrated, and installation is facilitated.

In the technical solution of this embodiment, the second latch 23122 is formed by extending the female body 23123, so that the female body 23123 and the second latch 23122 are integrated, which is convenient for installation and helps to realize the integrated design of the partition 231.

According to some embodiments of the present application, optionally, referring to fig. 3 to 5, the male body 23112 of the present embodiment has a recess B in a thickness direction of the male body 23112, and the female body 23123 has a protrusion C in the thickness direction of the female body 23123, the protrusion C being capable of being inserted into the recess B.

In the technical scheme of this application embodiment, through embedding convex part C in concave part B, realize that public first body 23112 is connected through the mode of embedding with female first body 23123, provide a public first body 23112 and female first body 23123 a specific connected mode, design cost is lower.

According to some embodiments of the present application, optionally, referring to fig. 3 to 5, the number of the male heads 2311 of the present embodiment is at least two, and the number is a first male head including the first male head body 011 and a second male head including the second male head body 012. The number of the female heads 2312 is at least two, and the female heads are respectively a first female head comprising a first female head body 013 and a second female head comprising a second female head body 014. The first male body 011 has a concave portion B in a thickness direction of the first male body 011, and the first female body 013 has a convex portion C in a thickness direction of the first female body 013. The second male body 012 has a protrusion C in the thickness direction of the second male body 012, and the protrusion C is provided below the second male body 012, taking the direction shown in fig. 5 as an example. The second female body 014 has a concave portion B along the thickness direction of the second female body 014.

In the technical scheme of this application embodiment, through this kind of design, when can making two adjacent splicers 231 splice each other, first public first body 011 is located the below of first female first body 013, public first body 012 of second is located the top of second female first body 014, thereby make when the splice 231 along the atress in the perpendicular to splice 231 thickness direction, the joint strength when can further strengthen two splicers 231 splice each other, avoid two splicers 231 to break away from each other along the perpendicular to splice 231 thickness direction during the atress.

According to some embodiments of the present application, optionally, referring to fig. 3 to 5, the side of the splicing element 231 having the male end 2311 of the present embodiment further has a first positioning structure 2313, and the side of the splicing element 231 having the female end 2312 further has a second positioning structure 2314; when two adjacent splicing pieces 231 are spliced with each other, the second positioning structure 2314 is embedded into the first positioning structure 2313 to position the two adjacent splicing pieces 231.

In the technical scheme of the embodiment of the application, when two adjacent splicing pieces 231 are spliced with each other, the second positioning structure 2314 is embedded into the first positioning structure 2313 to realize the positioning of the two adjacent splicing pieces 231, so that when the two adjacent splicing pieces 231 are spliced together, the two adjacent splicing pieces 231 can be accurately positioned, and the splicing efficiency of splicing the two splicing pieces 231 together is promoted.

According to some embodiments of the present application, optionally, see fig. 3-5. In fig. 5 of the present embodiment, the first positioning structure 2313 is taken as a positioning hole, and the second positioning structure 2314 is taken as a positioning pin.

In the technical scheme of this application embodiment, the design cost of locating hole and locating pin is low to can reduce division board 23's cost.

According to some embodiments of the present application, optionally, as shown in conjunction with fig. 3-5, the locating hole is formed by extending the male body 23112.

In the technical scheme of this application embodiment, the locating hole is extended by public first body 23112 and is formed for can save structural space, practice thrift the cost.

According to some embodiments of the present application, optionally, the first positioning structure is a positioning groove and the second positioning structure is a positioning protrusion.

In the technical scheme of this application embodiment, the design cost of constant head tank and location arch is low to can reduce division board 23's cost.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present disclosure, and the present disclosure should be construed as being covered by the claims and the specification. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present application is not intended to be limited to the particular embodiments disclosed herein but is to cover all embodiments that may fall within the scope of the appended claims.

Claims (11)

1. A separator for a battery module (10), characterized in that the separator (23) comprises at least two side-by-side splices (231), the splices (231) being respectively for covering one battery cell (22) of the battery module (10);

the splice (231) has a male head (2311) and a female head (2312) on both sides, respectively, the male head (2311) comprises a first catch (23111), and the female head (2312) comprises a second catch (23122) with a slot (23121);

the first buckle (23111) and the second buckle (23122) are in interference clamping connection, so that two adjacent splicing pieces (231) are spliced with each other, and the groove (23121) is used for providing a deformation space of the first buckle (23111) and the second buckle (23122) when the first buckle (23111) and the second buckle (23122) are in interference clamping connection.

2. An insulation board according to claim 1, characterized in that the male head (2311) further comprises a male head body (23112);

the female head (2312) further comprises a female head body (23123);

when two adjacent splicing pieces (231) are spliced with each other, the male head body (23112) and the female head body (23123) are connected in an embedded mode.

3. The insulation panel according to claim 2, wherein said male body (23112) is extended to form said first catch (23111); the female body (23123) extends to form the second catch (23122).

4. A partition board as claimed in claim 2, wherein said male body (23112) has a recess (B) in the thickness direction of said male body (23112), and said female body (23123) has a protrusion (C) in the thickness direction of said female body (23123), said protrusion (C) being capable of fitting into said recess (B).

5. Partition according to claim 2, wherein the number of male heads (2311) is at least two, respectively a first male head comprising a first male head body (011) and a second male head comprising a second male head body (012);

the number of the female heads (2312) is at least two, and the female heads are respectively a first female head comprising a first female head body (013) and a second female head comprising a second female head body (014);

the first male body (011) has a concave portion (B) in a thickness direction of the first male body (011), and the first female body (013) has a convex portion (C) in a thickness direction of the first female body (013);

the second male body (012) has a convex portion (C) in the thickness direction of the second male body (012), and the second female body (014) has a concave portion (B) in the thickness direction of the second female body (014).

6. The insulation panel according to any of the claims 2 to 5, wherein the side of the splice (231) having the male head (2311) further has a first positioning structure (2313), and the side of the splice (231) having the female head (2312) further has a second positioning structure (2314);

when two adjacent splicing pieces (231) are spliced with each other, the second positioning structure (2314) is embedded into the first positioning structure (2313) to realize the positioning of the two adjacent splicing pieces (231).

7. A partition board as claimed in claim 6, wherein said first positioning structure (2313) is a positioning hole and said second positioning structure (2314) is a positioning pin.

8. The separator plate of claim 7 wherein said alignment holes are formed by extending said male body.

9. A partition board as claimed in claim 6, wherein said first positioning structure (2313) is a positioning groove and said second positioning structure (2314) is a positioning projection.

10. A battery module, comprising:

a frame (21) having a receiving cavity;

at least two battery units (22) accommodated in the accommodating chamber;

the separator plate (23) according to any one of claims 1 to 9, said at least two juxtaposed splices (231) covering one of said battery cells (22), respectively;

and a bus bar (24) provided on the separator (23) for electrically connecting at least two of the battery cells (22).

11. An apparatus using a battery module as a power source, characterized in that the battery module (10) is the battery module (10) according to claim 10.

Images