CN215816222U - Electricity core subassembly, battery package and electric automobile - Google Patents
Electricity core subassembly, battery package and electric automobile Download PDFInfo
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- CN215816222U CN215816222U CN202121315518.6U CN202121315518U CN215816222U CN 215816222 U CN215816222 U CN 215816222U CN 202121315518 U CN202121315518 U CN 202121315518U CN 215816222 U CN215816222 U CN 215816222U
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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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Abstract
The utility model relates to the technical field and provides an electric core assembly, a battery pack and an electric automobile, wherein the electric core assembly comprises an installation frame, at least one first electric connector and at least two electric core assemblies, and the installation frame is provided with at least two installation positions which are sequentially arranged along the X-axis direction of the electric core assemblies; the first electric connecting piece is arranged in the mounting frame and positioned between two adjacent mounting positions; each electric core group is arranged in an installation position, and two adjacent electric core groups are electrically connected through corresponding first electric connectors. By adopting the structure of the battery pack assembly, the battery pack assemblies with different sizes can be produced by only one production line, so that the investment of the production line can be effectively reduced, and the production cost of the battery pack can be effectively reduced; in addition, the structural component that above-mentioned electric core subassembly contained still less, and above-mentioned electric core subassembly fungible traditional battery module direct application in battery package has improved the space utilization of battery package, makes the energy density of battery package obtain promoting by a wide margin.
Description
Technical Field
The utility model relates to the technical field of batteries, and particularly provides an electric core assembly, a battery pack and an electric automobile.
Background
The battery pack is usually composed of a plurality of battery modules in a series-parallel connection mode, at present, manufacturing processes of the battery modules with different sizes are different, the same production line cannot be compatible with the battery modules with different sizes at the same time, and manufacturers need to put into various production lines to produce the battery modules with different sizes, so that the production cost of the battery pack is greatly increased; in addition, because the battery module is assembled by various structural components, and various structural components are also needed to be connected among the battery modules in the battery pack, the grouping rate of the whole battery pack is low, and the energy density of the battery pack is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an electric core assembly, a battery pack and an electric automobile, and aims to solve the technical problems of high production cost and low energy density of the conventional battery pack.
In order to achieve the purpose, the embodiment of the utility model adopts the technical scheme that: an electric core assembly comprising:
the mounting frame is provided with at least two mounting positions which are sequentially arranged along the X-axis direction of the electric core assembly;
the first electric connecting piece is arranged in the mounting frame and positioned between two adjacent mounting positions;
at least two electric core groups, each electric core group sets up in an installation position, and two adjacent electric core groups are through the first electric connector electric connection that corresponds.
The electric core component provided by the embodiment of the utility model at least has the following beneficial effects: by installing each electric core group in the corresponding installation cavity of the installation frame and electrically connecting the two adjacent electric core groups through the corresponding first electric connecting pieces, in the production process, different numbers of electric core groups can be connected to form electric core groups with different sizes according to practical application requirements, so that the electric core groups with different sizes can be produced by only one production line, the investment of the production line can be effectively reduced, and the production cost of the battery pack can be effectively reduced; in addition, compare with traditional battery module, the structural component that above-mentioned electric core subassembly contained still less, and above-mentioned electric core subassembly fungible traditional battery module direct application in battery package makes the inner structure of battery package become compacter, has improved the space utilization of battery package, makes the energy density of battery package obtain promoting by a wide margin.
In one embodiment, the battery cell pack includes at least two battery cell units and at least one heat conduction member, each battery cell unit is stacked in sequence along the Y-axis direction of the battery cell pack, and the heat conduction member is attached between two adjacent battery cell units.
Through adopting above-mentioned technical scheme, can effectively reduce the difference in temperature between each electric core unit in the electric core group, realize the bulk temperature equilibrium of electric core group to ensure the charge-discharge performance of electric core group.
In one embodiment, a heat conductive adhesive layer is disposed between the heat conductive member and the cell unit.
Through adopting above-mentioned technical scheme, can effectively link into an organic whole with each electric core unit in the electric core group on the one hand to improve the overall structure intensity of electric core group, on the other hand can further improve the heat conduction efficiency between electric core unit and the heat-conducting piece, thereby can further reduce the difference in temperature between each electric core unit in the electric core group, ensure the charge-discharge performance of electric core group more effectively.
In one embodiment, the electric core assembly further comprises at least one second electric connector, the second electric connector is arranged at the end part of the mounting frame, and the electric core assembly positioned at the end side of the mounting frame close to the second electric connector is electrically connected with the second electric connector.
Through adopting above-mentioned technical scheme, the electric core subassembly is installed behind the battery package, can directly outwards draw working current through second electric connector, can further reduce the electric connection part who is used for between each electric core subassembly to can further improve the space utilization of battery package, make the energy density of battery package obtain promotion by a wide margin.
In one embodiment, the second electric connector comprises an electric connection part and a bus-bar part which are vertically connected with each other, the electric connection part is attached to the end part of the mounting frame and is used for being electrically connected with the electric core group, and the bus-bar part is attached to the side part of the mounting frame.
Through adopting above-mentioned technical scheme, can effectively improve the compact structure degree of electric core subassembly, reduce the occupation space of electric core subassembly in the battery package, can further improve the space utilization of battery package to the energy density that makes the battery package obtains promotion by a greater margin.
In one embodiment, the end of the mounting frame is provided with a limiting sleeve, and the second electric connector is inserted into the limiting sleeve.
Through adopting above-mentioned technical scheme, can effectively carry out spacing fixed to second electric connector to make second electric connector and installing frame relatively fixed, can effectively improve the stability and the reliability of the corresponding power connection relation that second electric connector established, thereby ensure the working property of electric core subassembly.
In one embodiment, the end of the mounting frame is provided with a mounting portion, and the mounting portion is provided with a first mounting hole.
Through adopting above-mentioned technical scheme, electric core subassembly accessible installation department direct mount can further cut down the structural component who is used for fixed electric core subassembly in the battery package to improve the percentage of uniting and the space utilization of battery package, and then made the energy density of battery package effectively promote.
In one embodiment, each first electrical connector is integrally injection molded with the mounting frame.
By adopting the technical scheme, on one hand, the first electric connecting piece and the mounting frame can be effectively fixed, and the stability and reliability of the corresponding power connection relationship established through the first electric connecting piece are improved, so that the working performance of the electric core assembly is ensured; on the other hand, the connecting parts for connecting the first electric connecting pieces and the mounting frame are reduced, so that the grouping rate and the space utilization rate of the battery pack are improved, and the energy density of the battery pack can be effectively improved.
In order to achieve the purpose, the utility model also provides a battery pack which comprises a box body and a plurality of the electric core assemblies, wherein each electric core assembly is arranged in the box body.
Since the battery pack adopts all the embodiments of the battery cell assembly, at least all the advantages of the embodiments are achieved, and further description is omitted.
In order to achieve the purpose, the utility model further provides an electric automobile which comprises the battery pack.
Since the electric vehicle adopts all the embodiments of the battery pack, at least all the advantages of the embodiments are achieved, and no further description is given here.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an electrical core assembly according to an embodiment of the present invention;
FIG. 2 is an exploded view of the electric core assembly shown in FIG. 1;
FIG. 3 is an enlarged schematic view of the electric core assembly shown in FIG. 2;
FIG. 4 is a front view of the electrical core assembly of FIG. 1;
FIG. 5 is a cross-sectional view of the core assembly B-B shown in FIG. 1;
fig. 6 is a schematic structural diagram of a first electrical connector according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
100. the battery cell assembly comprises a battery cell assembly body, 110, an installation frame, 111, an installation position, 112, an end frame, 113, a side frame, 114, a limiting sleeve, 115, an installation part, 1151, a first installation hole, 116, an installation column, 117, a second installation hole, 118, a metal connecting piece, 120, a first electric connecting piece, 130, a battery cell group, 131, a battery cell unit, 1311, a lug, 132, a heat conducting piece, 140, a second electric connecting piece, 141, an electric connecting part, 142 and a bus part.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, 2, 4 and 5, an electric core assembly 100 includes a mounting frame 110, at least one first electric connector 120 and at least two electric core assemblies 130, wherein the mounting frame 110 has at least two mounting positions 111 arranged in sequence along an X-axis direction of the electric core assembly 100; the first electrical connector 120 is arranged in the mounting frame 110 and located between two adjacent mounting positions 111; each electric core assembly 130 is disposed in an installation position 111, and two adjacent electric core assemblies 130 are electrically connected through the corresponding first electric connector 120.
It should be noted that the mounting frame 110 is made of an insulating material such as plastic, and specifically, as shown in fig. 2, the mounting frame 110 includes two end frames 112 disposed opposite to each other and at least one side frame 113 connected between the two end frames 112, a space defined by the end frames 112 and the side frame 113 is divided into a plurality of mounting locations 111, and each mounting location 111 is used for mounting one electric core assembly 130.
In other words, manufacturers need to put into a plurality of production lines to produce battery modules with different sizes, so that the production cost is greatly increased; in addition, because the battery module contains more structural components, the volume is larger, more internal space of the box body of the battery pack is occupied, and the battery module can be installed in the box body of the battery pack only by using various installation components and electric connection components, so that the space utilization rate of the box body of the battery pack is greatly reduced, and the energy density of the battery pack is greatly reduced.
According to the electric core assembly 100 provided by the application, each electric core assembly 130 is arranged in the corresponding installation cavity of the installation frame 110, and the two adjacent electric core assemblies 130 are electrically connected through the corresponding first electric connectors 120, so that in the production process, different numbers of electric core assemblies 130 can be connected to form electric core assemblies 100 with different sizes according to practical application requirements, and thus, the electric core assemblies 100 with different sizes can be produced by only one production line, the investment of the production line can be effectively reduced, and the production cost of a battery pack can be effectively reduced; in addition, compare with traditional battery module, the structural component that above-mentioned electric core subassembly 100 contained still less, and above-mentioned electric core subassembly 100 fungible traditional battery module direct application in battery package, make the inner structure of battery package become compacter, improved the space utilization of battery package to the energy density that makes the battery package has obtained promoting by a wide margin.
As shown in fig. 2, the battery cell assembly 130 includes at least two battery cell units 131 and at least one heat conducting member 132, each battery cell unit 131 is stacked in sequence along the Y-axis direction of the battery cell assembly 130, the heat conducting member 132 is a plate-shaped structure, and the heat conducting member 132 is attached between two adjacent battery cell units 131, wherein the heat conducting member 132 may be a metal component with a high thermal conductivity, such as a copper component, an aluminum component, or an aluminum alloy component.
Through adopting above-mentioned technical scheme, can effectively reduce the difference in temperature between each electric core unit 131 in the electric core group 130, realize the bulk temperature equilibrium of electric core group 130 to ensure the charge and discharge performance of electric core group 130.
Specifically, the heat conducting member 132 is fixedly connected to the mounting frame 110, and in order to improve the overall structural strength of the electric core assembly 100, the heat conducting member 132 may be integrally formed with the mounting frame 110 through an injection molding process, and of course, the heat conducting member 132 may also be fixedly connected to the mounting frame 110 by other connection methods, such as an inserting connection method, a fastening connection method, and the like, which are not limited herein.
Specifically, a heat conductive adhesive layer (not shown) is disposed between the heat conductive member 132 and the cell unit 131.
The cell units 131 are bonded with the heat conducting members 132 through the heat conducting adhesive layer, on one hand, each cell unit 131 in the cell core group 130 can be effectively connected into a whole, so that the overall structural strength of the cell core group 130 is improved, on the other hand, the heat conducting efficiency between the cell units 131 and the heat conducting members 132 can be further improved, the temperature difference between each cell unit 131 in the cell core group 130 can be further reduced, and the charging and discharging performance of the cell core group 130 is more effectively ensured.
As shown in fig. 2 and fig. 5, two ends of the cell unit 131 are respectively provided with a tab 1311, where the tab 1311 at one end of the cell unit 131 is a positive tab, and the tab 1311 at the other end of the cell unit 131 is a negative tab. For a cell group 130, the positive tab and/or the negative tab of each cell unit 131 is electrically connected to the corresponding first electrical connector 120, so as to connect each cell unit 131 in the cell group 130 in parallel; for two adjacent electric core groups 130, each positive tab of one electric core group 130 and each negative tab of the other electric core group 130 are electrically connected to the same first electric connector 120, so as to connect the electric core groups 130 in series.
As shown in fig. 2, the electric core assembly 100 further includes at least one second electric connector 140, the second electric connector 140 is disposed at an end of the mounting frame 110, in other words, the second electric connector 140 is disposed on at least one end frame 112 of the mounting frame 110, the electric core assembly 130 at an end side of the mounting frame 110 close to the second electric connector 140 is electrically connected to the second electric connector 140, and it can be understood that each positive electrode tab or each negative electrode tab in the electric core assembly 130 at the end side of the mounting frame 110 is electrically connected to the second electric connector 140.
Specifically, as shown in fig. 2, the frames 112 at two ends of the mounting frame 110 are respectively provided with a second electrical connector 140, each positive tab in the electric core assembly 130 at one end side of the mounting frame 110 is electrically connected to one second electrical connector 140, and each negative tab in the electric core assembly 130 at the other end side of the mounting frame 110 is electrically connected to the other second electrical connector 140.
By adopting the above technical scheme, after the electric core assembly 100 is installed on the battery pack, the working current can be directly led out through the second electric connector 140, and the electric connection parts used between the electric core assemblies 100 can be further reduced, so that the space utilization rate of the battery pack can be further improved, and the energy density of the battery pack is greatly improved.
As shown in fig. 2, the second electrical connector 140 includes an electrical connection portion 141 and a bus portion 142, which are vertically connected to each other, the electrical connection portion 141 is attached to an end of the mounting frame 110 and is used for electrically connecting to the electric core assembly 130, and the bus portion 142 is attached to a side of the mounting frame 110, it can be understood that, when the second electrical connector 140 is mounted on the mounting frame 110, the electrical connection portion 141 of the second electrical connector 140 is attached to the end frame 112 of the mounting frame 110, and the bus portion 142 of the second electrical connector 140 is attached to the side frame 113 of the mounting frame 110, wherein the bus member of the second electrical connector 140 is used for connecting to the bus members of the battery pack, so as to connect the electric core assemblies 100 in series and parallel and collect the operation parameter signals of the electric core assemblies 100.
Through adopting above-mentioned technical scheme, can effectively improve electric core subassembly 100's compact structure degree, reduce the occupation space of electric core subassembly 100 in the battery package, can further improve the space utilization of battery package to the energy density that makes the battery package obtains promotion by a larger margin.
Referring to fig. 2 and 3, the end of the mounting frame 110 is provided with a position-limiting sleeve 114, and the second electrical connector 140 is inserted into the position-limiting sleeve 114, it can be understood that the position-limiting sleeve 114 is provided on the end frame 112 of the mounting frame 110, and the electrical connection portion 141 of the second electrical connector 140 is inserted into the position-limiting sleeve 114.
By adopting the technical scheme, the second electric connecting piece 140 can be effectively limited and fixed, so that the second electric connecting piece 140 and the mounting frame 110 are relatively fixed, the stability and the reliability of the corresponding power connection relation established by the second electric connecting piece 140 can be effectively improved, and the working performance of the core assembly 100 is ensured.
In order to further improve the connection stability of the second electrical connector 140, the second electrical connector 140 is integrally formed with the mounting frame 110 through an injection molding process. Of course, the heat conducting member 132 may also be fixedly connected to the mounting frame 110 by other connection methods, such as a clamping method, a fastening method, and the like, which are not limited in this respect.
As shown in fig. 2 and 3, the end of the mounting frame 110 is provided with a mounting portion 115, the mounting portion 115 is provided with a first mounting hole 1151, specifically, the mounting portion 115 is provided on the end frame 112 of the mounting frame 110 and protrudes outward from the end frame 112, and a fastener may be used to pass through the first mounting hole 1151 and then be connected to the case of the battery pack, so as to mount the battery pack assembly 100 in the case of the battery pack. Through adopting above-mentioned technical scheme, can further reduce the structural component who is used for fixed electric core subassembly 100 to improve the group rate and the space utilization of battery package, and then made the energy density of battery package can effectively be promoted.
Each first electrical connector 120 is integrally injection-molded with the mounting frame 110. By adopting the technical scheme, on one hand, the first electric connecting piece 120 and the mounting frame 110 can be effectively fixed, and the stability and reliability of the corresponding power connection relationship established by the first electric connecting piece 120 are improved, so that the working performance of the electric core assembly 100 is ensured; on the other hand, the connecting parts for connecting the first electric connecting piece 120 and the mounting frame 110 are reduced, so that the grouping rate and the space utilization rate of the battery pack are improved, and the energy density of the battery pack can be effectively improved.
Specifically, as shown in fig. 5 and fig. 6, the second electrical connector 140 has a cylindrical structure, and during the injection molding process, the mounting frame 110 forms a mounting post 116 between two adjacent mounting locations 111, it can be understood that the mounting post 116 is connected to a side frame 113 of the mounting frame 110, and the second electrical connector 140 is fixedly sleeved on the mounting post 116 to connect the second electrical connector 140 and the mounting frame 110 into a whole.
In order to further improve the installation stability of the electric core assembly 100, a plurality of second installation holes 117 are formed in the installation frame 110, each second installation hole 117 penetrates through the side frame 113 of the installation frame 110 and extends towards the corresponding installation column 116, a metal connecting piece 118, such as a threaded sleeve and the like, is embedded into each second installation hole 117, penetrates through the box body of the battery pack through a fastener, then enters into the second installation hole 117 and is connected with the metal connecting piece 118, and therefore the electric core assembly 100 is installed in the box body of the battery pack.
A second aspect of the present invention provides a battery pack, comprising a case and a plurality of the above-mentioned electric core assemblies 100, each electric core assembly 100 being mounted in the case.
Since the battery pack employs all embodiments of the battery cell assembly 100, at least all advantages of the embodiments are provided, and thus, detailed description thereof is omitted.
In order to achieve the purpose, the utility model further provides an electric automobile which comprises the battery pack.
Since the electric vehicle adopts all the embodiments of the battery pack, at least all the advantages of the embodiments are achieved, and no further description is given here.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An electric core assembly, characterized in that, the electric core assembly includes:
the mounting frame comprises at least two mounting positions which are sequentially arranged along the X-axis direction of the electric core assembly;
the first electric connecting piece is arranged in the mounting frame and positioned between two adjacent mounting positions, and the number of the first electric connecting pieces is at least one;
at least two electric core groups, each electric core group sets up in one the installation position, two adjacent electric core groups pass through first electric connector electricity is connected.
2. The electric core assembly according to claim 1, wherein: the battery cell group comprises at least two battery cell units and at least one heat conducting piece, the battery cell units are sequentially stacked along the Y-axis direction of the battery cell group, and the heat conducting piece is attached between every two adjacent battery cell units.
3. The electric core assembly according to claim 2, wherein: and a heat-conducting adhesive layer is arranged between the heat-conducting piece and the battery cell unit.
4. The electric core assembly according to claim 1, wherein: the electric core assembly further comprises at least one second electric connector, the second electric connector is arranged at the end part of the mounting frame, and the electric core assembly is located at the end side, close to the second electric connector, of the mounting frame and is electrically connected with the second electric connector.
5. The electrical core assembly of claim 4, wherein: the second electric connector includes electric connection portion and the portion of converging that mutually perpendicular ground connected, electric connection portion with the tip of installing frame is laminated mutually and be used for with electric core group electric connection, the portion of converging with the lateral part of installing frame is laminated mutually.
6. The electrical core assembly of claim 4, wherein: the end part of the mounting frame is provided with a limiting sleeve, and the second electric connector is inserted in the limiting sleeve.
7. The electric core assembly according to claim 1, wherein: the tip of installing frame is equipped with the installation department, first mounting hole has been seted up on the installation department.
8. The electric core assembly according to any one of claims 1 to 7, wherein: each first electric connector and the mounting frame are integrally formed in an injection molding mode.
9. A battery pack, comprising: the battery pack comprises a box body and a plurality of electric core assemblies according to any one of claims 1 to 8, wherein each electric core assembly is arranged in the box body.
10. An electric vehicle, characterized in that: the electric vehicle includes the battery pack according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121315518.6U CN215816222U (en) | 2021-06-11 | 2021-06-11 | Electricity core subassembly, battery package and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121315518.6U CN215816222U (en) | 2021-06-11 | 2021-06-11 | Electricity core subassembly, battery package and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215816222U true CN215816222U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121315518.6U Active CN215816222U (en) | 2021-06-11 | 2021-06-11 | Electricity core subassembly, battery package and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215816222U (en) |
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2021
- 2021-06-11 CN CN202121315518.6U patent/CN215816222U/en active Active
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