CN116014341B - Battery device and method for attaching reinforcing bar - Google Patents
Battery device and method for attaching reinforcing bar Download PDFInfo
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- CN116014341B CN116014341B CN202310312065.9A CN202310312065A CN116014341B CN 116014341 B CN116014341 B CN 116014341B CN 202310312065 A CN202310312065 A CN 202310312065A CN 116014341 B CN116014341 B CN 116014341B
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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
Abstract
The invention relates to the technical field of batteries, in particular to a battery device and a method for installing reinforcing strips, wherein the battery device comprises a battery pack, the two ends of the battery pack along a first horizontal direction are respectively provided with a first fixing structure and a second fixing structure, the battery pack comprises a plurality of batteries arranged along the first horizontal direction, battery poles are positioned on the side surfaces of the batteries along a second horizontal direction, and the poles are connected with bus bars; the battery device further comprises a reinforcing bar connected between the first and second fixing structures, the reinforcing bar being located on a side face of the battery pack in a second horizontal direction perpendicular to the first horizontal direction, the reinforcing bar being non-overlapping with the bus bars. Through the design, the first fixing structure and the second fixing structure can be tensioned by the reinforcing strips, so that the fastening effect of the first fixing structure and the second fixing structure on the battery pack is improved, the battery pack is prevented from generating loose structure and even failure, and the structural strength and the integrity of the battery device are improved. The invention also can avoid structural interference between the reinforcing bars and the bus bars.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery device and a method for installing a reinforcing strip.
Background
In the design of the existing battery device, two ends of the battery pack are fixed through the first fixing structure and the second fixing structure. However, the first and second fixing structures have insufficient restraining force on the battery pack, which easily results in loosening and even failure of the battery pack structure.
Disclosure of Invention
It is therefore an object of the present invention to overcome at least one of the above-mentioned drawbacks of the prior art, and to provide a battery device with a first fixing structure and a second fixing structure having a better fastening effect on a battery pack.
In order to achieve the above purpose, the invention adopts the following technical scheme:
according to one aspect of the present invention, there is provided a battery device, including a battery case including a first fixing structure and a battery pack disposed in the battery case, the battery pack including a plurality of batteries arranged in a first horizontal direction, poles of the batteries being located at sides of the batteries in the second horizontal direction, the poles being connected with bus bars, the first fixing structure and the second fixing structure being located at both ends of the battery pack in the first horizontal direction, respectively; the battery device further comprises a reinforcing strip, the reinforcing strip is connected between the first fixing structure and the second fixing structure, the reinforcing strip is located on the side face of the battery pack along the second horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, and the reinforcing strip is not overlapped with the busbar.
As can be seen from the above technical solutions, the battery device provided by the present invention has the following advantages and positive effects:
the battery device comprises a battery pack, wherein the battery pack comprises a plurality of batteries arranged along a first horizontal direction, a first fixing structure and a second fixing structure of a battery box body are respectively arranged at two ends of the battery pack along the first horizontal direction, and the batteries adopt a structure with pole posts protruding out from the sides. The battery device further comprises a reinforcing bar, wherein the reinforcing bar is connected between the first fixing structure and the second fixing structure, the reinforcing bar is positioned on the side face of the battery pack along the second horizontal direction, and the reinforcing bar is not overlapped with the bus bar connected to the pole. Through the design, the first fixing structure and the second fixing structure can be tensioned by the reinforcing strips, so that the fastening effect of the first fixing structure and the second fixing structure on the battery pack is improved, the problems of loose structure, even failure and the like of the battery pack are avoided, and the structural strength and the integrity of the battery device are improved. Meanwhile, the invention can avoid structural interference between the reinforcing strip and the bus.
Another principal object of the present invention is to overcome at least one of the above-mentioned drawbacks of the prior art by providing a method of installing a reinforcing strip.
In order to achieve the above purpose, the invention adopts the following technical scheme:
according to another aspect of the present invention, there is provided a method for installing a reinforcing bar for installing the battery device according to the present invention, comprising the steps of: connecting a first end of the reinforcing strip with the first fixed structure; and after the battery pack and the second fixing structure are put into the box, connecting the second end of the reinforcing strip with the second fixing structure.
According to the technical scheme, the mounting method of the reinforcing strip provided by the invention has the advantages and positive effects that:
according to the method for installing the reinforcing strip, the reinforcing strip for connecting the first fixing structure and the second fixing structure can be arranged in the battery device, so that the first fixing structure and the second fixing structure are tensioned, the fastening effect of the first fixing structure and the second fixing structure on the battery pack is improved, the problems that the battery pack is loose in structure and even fails are avoided, and the structural strength and the integrity of the battery device are improved.
Drawings
Various objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the invention, when taken in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the invention and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout. Wherein:
fig. 1 is a schematic perspective view of a battery device according to an exemplary embodiment;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a partial cross-sectional view of the battery device shown in FIG. 1;
FIG. 4 is an enlarged schematic view of portion B of FIG. 1;
fig. 5 is another perspective view of the battery device shown in fig. 1;
fig. 6 is a schematic perspective view of a part of the structure of the battery device shown in fig. 1;
FIG. 7 is an enlarged schematic view of portion C of FIG. 6;
fig. 8 is a schematic plan view of a first fixing structure of the battery device shown in fig. 1;
fig. 9 is a partially enlarged schematic view of a part of the structure of the battery device shown in fig. 1;
fig. 10 is a partial perspective view illustrating a first fixing structure of a battery device according to another exemplary embodiment;
FIG. 11 is a schematic view illustrating the assembly of the first fastening structure and the reinforcing strip shown in FIG. 10;
fig. 12 is a schematic plan view of the assembled structure of the first fixing structure and the reinforcing strip shown in fig. 10.
The reference numerals are explained as follows:
100. a battery pack;
110. a battery;
120. a busbar;
130. a harness plate;
131. a positioning groove;
200. a first fixed structure;
210. a second through hole;
220. a cavity;
230. an elastic limiting piece;
231. a fixing part;
232. an elastic part;
240. a mounting groove;
300. a second fixing structure;
310. a first through hole;
320. a through groove;
330. a receiving groove;
400. reinforcing strips;
410. a second fixing portion;
420. a first fixing portion;
x, a first horizontal direction;
y. a second horizontal direction.
Detailed Description
Exemplary embodiments that embody features and advantages of the present invention are described in detail in the following description. It will be understood that the invention is capable of various modifications in various embodiments, all without departing from the scope of the invention, and that the description and drawings are intended to be illustrative in nature and not to be limiting.
In the following description of various exemplary embodiments of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "over," "between," "within," and the like may be used in this description to describe various exemplary features and elements of the invention, these terms are used herein for convenience only, e.g., in terms of the orientation of the examples depicted in the drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of the structure in order to fall within the scope of the invention.
Referring to fig. 1, a schematic perspective view of a battery device according to the present invention is representatively illustrated, wherein a portion of the structure of the battery device is specifically illustrated, excluding, for example, other structures of a battery case except for a first fixing structure 200. In this exemplary embodiment, a battery device according to the present invention will be described by taking an in-vehicle battery as an example. Those skilled in the art will readily appreciate that many modifications, additions, substitutions, deletions, or other changes may be made to the specific embodiments described below in order to adapt the relevant designs of the present invention to other types of battery devices, and such changes are still within the principles of the battery devices presented herein.
As shown in fig. 1, in an embodiment of the present invention, a battery device includes a battery case and a battery pack 100, where the battery pack 100 is disposed in the battery case. Referring to fig. 2-9 in conjunction, an enlarged schematic view of portion a of fig. 1 is representatively illustrated in fig. 2; an enlarged schematic view of portion B of fig. 1 is representatively illustrated in fig. 4; another perspective view of the battery device is representatively illustrated in fig. 5, with the harness plate 130 of fig. 1 omitted; a schematic perspective view of a part of the structure of the battery device is representatively illustrated in fig. 6, in which the assembly structures of the first fixing structure 200, the second fixing structure 300, the harness plate 130 and the reinforcing bars 400 are specifically illustrated; an enlarged schematic view of portion C of fig. 6 is representatively illustrated in fig. 7; a schematic plan view of the first fixing structure 200 is representatively illustrated in fig. 8; a partially enlarged schematic view of a part of the structure of the battery device is representatively illustrated in fig. 9. The structure, connection manner and functional relationship of the main components of the battery device according to the present invention will be described in detail below with reference to the above-mentioned drawings.
As shown in fig. 1 to 5, in an embodiment of the present invention, the battery case includes a first fixing structure 200, and both ends of the battery pack 100 in a first horizontal direction X are provided with a first fixing structure 200 and a second fixing structure 300, respectively, the first fixing structure 200 may be, for example, a beam of the battery case, the second fixing structure 300 may be, for example, an end plate, and in some embodiments, the first fixing structure 200 may be an end plate, and the second fixing structure 300 may be a beam of the battery case as long as the fixing of the battery 110 in the first horizontal direction X is achieved. The battery pack 100 includes a plurality of batteries 110 arranged along a first horizontal direction X, and the batteries 110 may take a "post-out" structure, i.e., the posts of the batteries 110 may be located on a side surface of the batteries 110 along a second horizontal direction Y (e.g., an end surface of the batteries along the second horizontal direction Y, and a side surface of the batteries perpendicular to the second horizontal direction as well), and the side surface of the batteries 110 along the second horizontal direction Y is provided with a busbar 120 connected to the post. The first fixing structure 200 and the second fixing structure 300 are respectively disposed at both ends of the battery pack 100 in the first horizontal direction X. On the basis, the battery device provided by the invention further comprises a reinforcing bar 400, wherein the reinforcing bar 400 is connected between the first fixing structure 200 and the second fixing structure 300, the reinforcing bar 400 is positioned on the side surface of the battery pack 100 along the second horizontal direction Y, the second horizontal direction Y is perpendicular to the first horizontal direction X, the reinforcing bar 400 and the bus bar 120 do not overlap, that is, the side surface of the battery pack 100 perpendicular to the second horizontal direction Y is taken as a reference plane, and the orthographic projection pattern of the reinforcing bar 400 on the reference plane and the orthographic projection pattern of the bus bar 120 on the reference plane do not overlap. Through the design, the first fixing structure 200 and the second fixing structure 300 can be tensioned by the reinforcing strips 400, so that the fastening effect of the first fixing structure 200 and the second fixing structure 300 on the battery pack 100 is improved, the problems of loose structure, failure and the like of the battery pack 100 are avoided, and the structural strength and the integrity of the battery device are improved. Meanwhile, the present invention can prevent the reinforcing bar 400 from interfering with the bus bar 120.
It should be noted that, in an embodiment of the present invention, the reinforcing strip 400 is disposed on the side of the battery pack 100 along the second horizontal direction Y, which means that the reinforcing strip 400 is not disposed on the top surface of the battery 110, and the battery 110 needs to be slightly higher than the first fixing structure 200 to facilitate the case entering, and the disposition of the reinforcing strip 400 on the top surface of the battery 110 may form bending and fixing structures, which may affect the strength of the reinforcing strip 400, and when the top surface of the battery 110 needs to be connected to a structure such as a case cover or a lid, the reinforcing strip 400 disposed on the top surface of the battery 110 may also cause structural interference.
As shown in fig. 2, in an embodiment of the present invention, the first fixing structure 200 has a cavity 220 inside. On this basis, the first end of the reinforcement bar 400 (i.e., the end of the reinforcement bar 400 connected to the first fixing structure 200) may extend into and be fixed to the cavity 220 of the first fixing structure 200. Specifically, the first fixing structure 200 may be provided with a second through hole 210, and the second through hole 210 penetrates through a side surface of the first fixing structure 200 facing the second fixing structure 300 and the cavity 220, and the first end of the reinforcing strip 400 may penetrate through the second through hole 210 and enter the cavity 220. Through the design, the invention can reduce the weight of the first fixing structure 200, facilitate the connection of the reinforcing strip 400 and the first fixing structure 200, reduce the weight of the battery device, and improve the reliability and convenience of the connection of the reinforcing strip 400 and the first fixing structure 200.
As shown in fig. 2, based on the design that the first end of the reinforcement bar 400 extends into and is fixed in the cavity 220 of the first fixing structure 200, in an embodiment of the present invention, an elastic limiting member 230 may be disposed in the cavity 220 of the first fixing structure 200, and the first end of the reinforcement bar 400 may be connected to the elastic limiting member 230 in a plugging manner. Through the above design, the present invention can make the installation and the removal of the reinforcing bar 400 with the first fixing structure 200 more convenient.
As shown in fig. 3, based on the design that the first end of the reinforcement bar 400 is connected to the elastic limiting member 230 in a plugging manner, in an embodiment of the present invention, the elastic limiting member 230 may have a fixing portion 231 and an elastic portion 232. Specifically, the first end of the reinforcing bar 400 is connected to the fixing portion 231 in a plugging manner, and the elastic portion 232 is connected to the fixing portion 231 and abuts against the cavity wall of the cavity 220 in an elastically compressed state. Through the above structural design, the present invention can utilize the elastic limiting member 230 to realize the positioning function on the fixing portion 231 (i.e. the elastic limiting member 230) and the first end of the reinforcing strip 400, thereby realizing the relative limitation on the reinforcing strip 400 and the first fixing structure 200.
Based on the design that the first end of the reinforcing strip 400 is connected to the elastic limiting member 230 in a plugging manner, in an embodiment of the present invention, the first end of the reinforcing strip 400 may have a second fixing portion 410, the outer peripheral dimension of the second fixing portion 410 may be larger than the outer peripheral dimension of the rest portion (except the first fixing portion 420) of the reinforcing strip 400, and the reinforcing strip 400 is connected to the elastic limiting member 230 in a plugging manner via the second fixing portion 410. The first fixing structure 200 is provided with a second through hole 210, the second through hole 210 is communicated with the cavity 220, the reinforcing strip 400 passes through the second through hole 210 and enters the cavity 220, and the aperture of the second through hole 210 is smaller than the outer peripheral dimension of the second fixing portion 410 and is larger than or equal to the outer peripheral dimension of the rest portion (except the first fixing portion 420) of the reinforcing strip 400. Through the above structural design, the first end of the reinforcing strip 400 is not easy to be separated from the second through hole 210, and the connection reliability of the reinforcing strip 400 and the first fixing structure 200 is further ensured.
Referring to fig. 10 to 12, a partial perspective view of a first fixing structure 200 of a battery device capable of embodying the principles of the present invention in another exemplary embodiment is representatively illustrated in fig. 10; a schematic assembly view of the first fixing structure 200 assembled with the reinforcing bar 400 is representatively illustrated in fig. 11; a plan view of the assembled structure of the first fixing structure 200 and the reinforcing bar 400 is representatively illustrated in fig. 12.
As shown in fig. 10 to 12, in an embodiment of the present invention, a through hole (i.e., a second through hole 210 shown in the drawings) and a mounting groove 240 are formed at a side of the first fixing structure 200 facing the battery pack 100. The second through hole 210 and the mounting groove 240 are respectively connected to the cavity 220, one end of the mounting groove 240 is connected to the second through hole 210, the other end of the mounting groove 240 is open on the top (or bottom) surface of the first fixing structure 200, and the width of the mounting groove 240 is greater than or equal to the peripheral dimension of the rest of the reinforcing strip 400 and is smaller than the peripheral dimension of the second fixing portion 410. The orthographic projection pattern of the second fixing portion 410 on a side surface of the first fixing structure 200 facing the battery pack 100 has a first area, the orthographic projection pattern of the second fixing portion 410 on a reference plane parallel to the top surface or the bottom surface of the battery pack 100 has a second area, the first area is larger than the second area, and the cross-sectional area of the second through hole 210 is smaller than the first area and larger than or equal to the second area. Specifically, as shown in fig. 11, in the first state, i.e., when the reinforcing bar 400 is not assembled with the first fixing structure 200 but is parallel to the side surface of the first fixing structure 200 facing the battery pack 100, the second through hole 210 is capable of passing through the second fixing portion 410, and the mounting groove 240 is capable of passing through the remaining portion of the reinforcing bar 400, thereby enabling the first end of the reinforcing bar 400 to enter the cavity 220. As shown in fig. 12, in the second state, the reinforcing bar 400 is flipped (e.g., 90 °) to extend in the first horizontal direction X such that the first end is blocked from the inner aperture thereof after entering the cavity 220 via the second through hole 210. Through the above structural design, the present invention can utilize the special matching structural design of the second fixing portion 410 and the second through hole 210 to realize the rapid assembly and the limitation of the reinforcing strip 400 and the first fixing structure 200, and has simple structure and convenient operation.
As shown in fig. 11 and 12, in an embodiment of the present invention, the front projection pattern of the second fixing part 410 on the side surface of the first fixing structure 200 facing the battery pack 100 may be circular, and the front projection pattern of the second fixing part 410 on a reference plane parallel to the top or bottom surface of the battery pack 100 may be rectangular, based on the assembled state of the reinforcing bar 400 and the first fixing structure 200 shown in fig. 12. Accordingly, the invention can realize the structural design that the first area is larger than or equal to the second area. In some embodiments, the front projection of the second fixing portion 410 on the surface of the first fixing structure 200 facing the battery pack 100 may also have other shapes, such as a rectangle, triangle, trapezoid, or ellipse. In addition, the orthographic projection pattern of the second fixing portion 410 on a reference plane parallel to the top surface or the bottom surface of the battery pack 100 may be rectangular, circular, or semicircular, which is not limited to the embodiment.
In an embodiment of the present invention, as shown in fig. 4, the second fixing structure 300 may be provided with a through hole, such as a first through hole 310 shown in the drawings, and the second end of the reinforcing strip 400 (i.e., the end of the reinforcing strip 400 connected to the second fixing structure 300) passes through the first through hole 310 and is fixed to the side of the second fixing structure 300 facing away from the first fixing structure 200. Through the above design, the present invention can further improve the connection strength between the reinforcing strip 400 and the second fixing structure 300.
As shown in fig. 4, based on the design that the second end of the reinforcing bar 400 is fixed to the second fixing structure 300 through the first through hole 310, in an embodiment of the present invention, the second end of the reinforcing bar 400 may have a first fixing portion 420, and an outer circumferential dimension of the first fixing portion 420 is greater than an outer circumferential dimension of the remaining portion of the reinforcing bar 400 (except for the second fixing portion 410) and an inner circumferential dimension of the through hole. Through the above design, the second end of the reinforcing strip 400 is not easy to be separated from the first through hole 310, and the connection reliability of the reinforcing strip 400 and the second fixing structure 300 is further ensured.
As shown in fig. 4 and 9, based on the design that the second end of the reinforcement bar 400 has the first fixing portion 420, in an embodiment of the present invention, the second fixing structure 300 may be provided with a through slot 320, the through slot 320 penetrates the second fixing structure 300 along the first horizontal direction X, and the through slot 320 communicates the first through hole 310 with the end surface of the second fixing structure 300 along the second horizontal direction Y. Accordingly, the second end of the reinforcing bar 400 can enter the through hole in the second horizontal direction Y via the through groove 320. Through the above design, the present invention can improve the reliability and convenience of the connection of the reinforcing bar 400 with the second fixing structure 300.
As shown in fig. 4 and 9, based on the design that the second end of the reinforcing strip 400 has the first fixing portion 420, in an embodiment of the present invention, a receiving groove 330 may be formed at an end opening of the first through hole 310 facing away from the first fixing structure 200, and an inner circumferential dimension of the receiving groove 330 is greater than an inner circumferential dimension of the through hole, and the first fixing portion 420 is at least partially received in the receiving groove 330. Through the above design, the present invention can utilize the accommodating groove 330 to accommodate at least part of the first fixing portion 420, thereby realizing the positioning of the second end of the reinforcing strip 400, and being beneficial to reducing the space occupation along the first horizontal direction X.
In an embodiment of the present invention, the width of the reinforcement bar 400 (the width of the portion other than the second fixing portion 410 and the first fixing portion 420) may be 2mm to 8mm, such as 2mm, 4mm, 6mm, 8mm, etc., along the second horizontal direction Y. Also, the thickness of the reinforcing bar 400 (the thickness of the other portions except the second fixing portion 410 and the first fixing portion 420) may be 2mm to 8mm, for example, 2mm, 4mm, 6mm, 8mm, etc., in the height direction, and the thickness and the width of the reinforcing bar 400 may be equal, but are not limited thereto. Through the design, the invention can avoid the reinforcement bar 400 from being in a wide and thin strip-shaped structure, further avoid the structural interference with the bus bar 120 on the side surface of the battery 110, and is beneficial to improving the structural strength of the reinforcement bar 400. The height space of the battery pack is controlled by the influence of the envelope, so that the space of the side surface of the battery 110 in the height direction is limited, and the bus bar 120 occupies a certain space for ensuring the overcurrent of the battery 110, so that the battery pack 100 is tensioned by the reinforcing bar 400 and cannot interfere with the bus bar 120. In some embodiments, the width of the reinforcing strip 400 may be less than 2mm, or may be greater than 8mm, such as 1.9mm and 8.1mm, and the thickness of the reinforcing strip 400 may be less than 2mm, or may be greater than 8mm, such as 1.9mm and 8.1mm, which are not limited to the present embodiment.
In one embodiment of the present invention, an arbitrary horizontal plane is defined as a horizontal reference plane, and a surface perpendicular to the second horizontal direction Y is defined as a vertical reference plane, on the basis that the orthographic projection of the reinforcing bar 400 on the horizontal reference plane has a first width along the second horizontal direction Y, and the orthographic projection of the reinforcing bar 400 on the vertical reference plane has a second width along the vertical direction (e.g., the height direction of the battery 110), the second width has a ratio of 0.2 to 1, such as 0.2, 0.5, 0.8, 1, etc., in the first width. Through the design, the invention can further avoid the wide and thin strip-shaped structure of the reinforcing strip 400, and ensure that the reinforcing strip 400 has better structural strength.
In one embodiment of the invention, the yield strength of the reinforcement bar 400 may be greater than or equal to 240Mpa. Through the design, the invention can ensure that the reinforcing strip 400 has better structural strength.
As shown in fig. 1, 5 and 6, in one embodiment of the present invention, the battery device according to the present invention may be provided with two reinforcing bars 400 at least one side of the battery pack 100 in the second horizontal direction Y, the two reinforcing bars 400 being spaced apart in the height direction. On this basis, the bus bars 120 may be located between adjacent two of the reinforcing bars 400 at intervals in the height direction. Through the design, the fastening effect of the first fixing structure 200 and the second fixing structure 300 on the battery pack 100 can be further improved, and the problems of loose structure, even failure and the like of the battery pack 100 are further avoided. Meanwhile, since the bus bar 120 needs to flow through and occupy space, the present invention utilizes the structural design of the above-mentioned reinforcing bars 400 and bus bar 120 which are arranged at intervals in the height direction, so as to ensure that structural interference can not occur between the two, and further realize full use of the side space of the battery pack 100. In some embodiments, at least one side of the battery pack 100 along the second horizontal direction Y, the battery device may also be provided with one reinforcing strip 400, and three or more reinforcing strips 400 may also be provided, which is not limited to the present embodiment.
As shown in fig. 1 and 6, in one embodiment of the present invention, the battery pack 100 is provided with a harness plate 130 at a side thereof in the second horizontal direction Y. On this basis, the reinforcement bar 400 may be located at a side of the harness plate 130 facing away from the battery 110. Through the above design, the present invention can prevent the reinforcing bar 400 from directly contacting the battery pack 100 to damage the battery 110 or the collecting member.
As shown in fig. 6 and 7, based on the design that the reinforcement bar 400 is located on the side of the harness plate 130 facing away from the battery 110, in an embodiment of the present invention, a positioning slot 131 may be disposed on the side of the harness plate 130 facing away from the battery 110, and at least a portion of the reinforcement bar 400 may be disposed through the positioning slot 131. Through the design, the invention can realize the support and the positioning of the reinforcing strip 400 by utilizing the positioning groove 131, avoid the structural interference of the reinforcing strip 400 and the busbar 120 caused by the sagging of gravity, and simultaneously avoid the vertical vibration of the reinforcing strip 400 under the vibration working condition, thereby further improving the structural stability and the reliability of the battery device.
In one embodiment of the present invention, the reinforcing bar 400 may be a wire rope.
In an embodiment of the invention, the battery device provided by the invention may be a battery module or a battery pack.
It should be noted herein that the battery devices shown in the drawings and described in this specification are only a few examples of the wide variety of battery devices that can employ the principles of the present invention. It should be clearly understood that the principles of the present invention are in no way limited to any details or any components of the battery device shown in the drawings or described in this specification.
In summary, the battery device according to the present invention includes the battery pack 100, the battery pack 100 includes the plurality of batteries 110 arranged along the first horizontal direction X, the first fixing structure 200 and the second fixing structure 300 of the battery case are respectively disposed at two ends of the battery pack 100 along the first horizontal direction X, and the batteries 110 adopt a structure with pole sides. The battery device further includes a reinforcement bar 400, the reinforcement bar 400 is connected between the first fixing structure 200 and the second fixing structure 300, the reinforcement bar 400 is located at a side of the battery pack 100 in the second horizontal direction Y, and the reinforcement bar 400 does not overlap with the bus bar 120 connected to the post. Through the design, the first fixing structure 200 and the second fixing structure 300 can be tensioned by the reinforcing strips 400, so that the fastening effect of the first fixing structure 200 and the second fixing structure 300 on the battery pack 100 is improved, the problems of loose structure, failure and the like of the battery pack 100 are avoided, and the structural strength and the integrity of the battery device are improved. Meanwhile, the present invention can prevent the reinforcing bar 400 from interfering with the bus bar 120.
Based on the above detailed description of several exemplary embodiments of the battery device according to the present invention, an exemplary embodiment of the method for mounting the reinforcing bar according to the present invention will be described below.
In one embodiment of the present invention, the method of installing the reinforcing bar proposed in the present invention may be used to install the reinforcing bar 400 of the battery device proposed in the present invention and described in detail in the above embodiment. Wherein, the installation method comprises the following steps:
connecting a first end of the reinforcement bar 400 to the first fixing structure 200;
after the battery pack 100 and the second fixing structure 300 are put into the box, the second end of the reinforcement bar 400 is connected with the second fixing structure 300.
Through the design, the reinforcing strip 400 for connecting the first fixing structure 200 and the second fixing structure 300 can be arranged in the battery device, so that the first fixing structure 200 and the second fixing structure 300 are tensioned, the fastening effect of the first fixing structure 200 and the second fixing structure 300 on the battery pack 100 is improved, the problems of loose structure, even failure and the like of the battery pack 100 are avoided, and the structural strength and the integrity of the battery device are improved.
Referring to fig. 2, in an embodiment of the present invention, when the first fixing structure 200 has the cavity 220, in the step of connecting the first end with the first fixing structure 200, the first end of the reinforcing strip 400 may be inserted and fixed into the cavity 220 of the first fixing structure 200.
Referring to fig. 10 to 12, in an embodiment of the invention, when the first end of the reinforcement bar 400 has the second fixing portion 410 and the first fixing structure 200 is provided with the second through hole 210 and the mounting groove 240, in the step of connecting the first end with the first fixing structure 200, the reinforcement bar 400 is first placed in the cavity 220 in the first state, as shown in fig. 11, and the extending direction of the reinforcement bar 400 in the first state is parallel to the surface of the first fixing structure 200 facing the battery pack 100. Then, the reinforcement bar 400 is turned over to a second state, as shown in fig. 12, in which the reinforcement bar 400 extends along the first horizontal direction X, so that the first end enters the cavity 220 through the second through hole 210 and is blocked at the inner hole of the second through hole 210.
Referring to fig. 9, in an embodiment of the invention, when the second fixing structure 300 is provided with the through hole (for example, the first through hole 310 in the drawing) and the through groove 320, that is, the first through hole 310 and the through groove 320 both penetrate through the second fixing structure 300 along the first horizontal direction X, and the through groove 320 communicates the through hole with the end surface of the second fixing structure 300 along the second horizontal direction Y. In the step of connecting the second end with the second fixing structure 300, the second end of the reinforcing strip 400 may be specifically passed through the through slot 320 along the second horizontal direction Y and then enter the through hole, and then the second end is fixed on the side of the second fixing structure 300 facing away from the first fixing structure 200. Through the above design, when assembling the reinforcing strip 400, the first end of the reinforcing strip 400 can be inserted into the first fixing structure 200 for connection, and then the second end of the reinforcing strip 400 is connected to the second fixing structure 300 in a manner of moving in the horizontal direction and then being clamped and fixedly connected, so that the assembling of the reinforcing strip 400 is facilitated, and the space is saved.
It should be noted herein that the mounting methods of the reinforcing bars shown in the drawings and described in this specification are only a few examples of the wide variety of mounting methods that can employ the principles of the present invention. It should be clearly understood that the principles of the present invention are in no way limited to any details or any steps of the method of installing reinforcing bars shown in the drawings or described in the present specification.
In summary, according to the method for installing the reinforcing strip provided by the invention, the reinforcing strip 400 for connecting the first fixing structure 200 and the second fixing structure 300 can be arranged in the battery device, so that the first fixing structure 200 and the second fixing structure 300 are tensioned, the fastening effect of the first fixing structure 200 and the second fixing structure 300 on the battery pack 100 is improved, the problems of loose structure, even failure and the like of the battery pack 100 are avoided, and the structural strength and the integrity of the battery device are improved.
Exemplary embodiments of the battery device and the method of installing the reinforcing bar according to the present invention are described and/or illustrated in detail above. Embodiments of the invention are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or each step of one embodiment may also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. that are described and/or illustrated herein, the terms "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc., in addition to the listed elements/components/etc. Furthermore, the terms "first" and "second" and the like in the claims and in the description are used for descriptive purposes only and not for numerical limitation of their subject matter.
While the method of installing the battery assembly and reinforcing bars of the present invention has been described in terms of various specific embodiments, those skilled in the art will recognize that the invention can be practiced with modification within the spirit and scope of the claims.
Claims (12)
1. The battery device is characterized by comprising a battery pack, wherein a first fixing structure and a second fixing structure are respectively arranged at two ends of the battery pack along a first horizontal direction, the battery pack comprises a plurality of batteries which are arranged along the first horizontal direction, poles of the batteries are positioned on the side surfaces of the batteries along a second horizontal direction, the second horizontal direction is perpendicular to the first horizontal direction, and the poles are connected with bus bars; the battery device further comprises a reinforcing bar, wherein the reinforcing bar is connected between the first fixing structure and the second fixing structure, the reinforcing bar is positioned on the side surface of the battery pack along the second horizontal direction, and the reinforcing bar is not overlapped with the bus bar; wherein, the first fixing structure is internally provided with a cavity, and the first end of the reinforcing strip extends into and is fixed in the cavity; the second fixing structure is provided with a first through hole, the second end of the reinforcing strip penetrates through the first through hole and is fixed on one side, opposite to the first fixing structure, of the second fixing structure, the second end is provided with a first fixing portion, the peripheral size of the first fixing portion is larger than the peripheral size of the rest of the reinforcing strip and the inner peripheral size of the first through hole, the second fixing structure is provided with a through groove, the through groove penetrates through the second fixing structure along the first horizontal direction, and is communicated with the end faces of the first through hole and the second fixing structure along the second horizontal direction, so that the reinforcing strip can enter the first through hole through the through groove.
2. The battery device of claim 1, wherein an elastic limiting member is disposed in the cavity, and the first end is plug-connected to the elastic limiting member.
3. The battery device according to claim 2, wherein the elastic stopper has a fixing portion to which the first end of the reinforcing strip is inserted and connected, and an elastic portion connected to the fixing portion and abutting against a wall of the cavity in an elastically compressed state, thereby positioning the fixing portion and the first end.
4. The battery device according to claim 2, wherein the first end has a second fixing portion having an outer peripheral dimension larger than an outer peripheral dimension of the remaining portion of the reinforcing strip, the second fixing portion is plug-in connected to the elastic stopper, the first fixing structure is provided with a second through hole, the second through hole is communicated with the cavity, the reinforcing strip passes through the second through hole to enter the cavity, and an aperture of the second through hole is smaller than the outer peripheral dimension of the second fixing portion and larger than or equal to the outer peripheral dimension of the remaining portion of the reinforcing strip.
5. The battery device according to claim 4, wherein a mounting groove is provided on a side of the first fixing structure facing the battery pack, the mounting groove is communicated with the cavity, one end of the mounting groove is communicated with the second through hole, the other end of the mounting groove is opened on the top surface or the bottom surface of the first fixing structure, and the width of the mounting groove is larger than or equal to the peripheral dimension of the rest part of the reinforcing strip and smaller than the peripheral dimension of the second fixing part; the second fixing part has a second area on an orthographic projection pattern on a reference plane parallel to the top surface or the bottom surface of the battery pack, the first area is larger than the second area, and the sectional area of the second through hole is smaller than the first area and larger than or equal to the second area.
6. The battery device according to claim 1, wherein an accommodating groove is formed in an end opening of the first through hole facing away from the first fixing structure, an inner peripheral dimension of the accommodating groove is larger than an inner peripheral dimension of the first through hole, and the first fixing portion is at least partially accommodated in the accommodating groove.
7. The battery device according to any one of claims 1 to 6, wherein the width of the reinforcing strip in the second horizontal direction is 2mm to 8mm, and the thickness of the reinforcing strip in the height direction is 2mm to 8mm.
8. The battery device according to any one of claims 1 to 6, wherein at least two of the reinforcing bars are provided on at least one side of the battery pack in the second horizontal direction, the at least two reinforcing bars being arranged at intervals in the height direction, and the bus bars being located between adjacent two of the reinforcing bars at intervals in the height direction.
9. The battery device according to any one of claims 1 to 6, wherein the reinforcing strip is a wire rope.
10. A method of installing a reinforcing bar for installing the battery device according to any one of claims 1 to 9, comprising the steps of:
inserting a first end of the reinforcing strip into a cavity of the first fixing structure to be connected with the first fixing structure;
after the battery pack and the second fixing structure are put into the box, the second end of the reinforcing strip is moved into the first through hole along the second horizontal direction through the through groove, and the first fixing part and the first through hole are clamped and positioned by utilizing the size difference of the first fixing part and the first through hole, so that the connection between the second end and the second fixing structure is realized.
11. The method of installing a reinforcing bar of claim 10, wherein an elastic stopper is disposed in the cavity; in the step of connecting the first end with the first fixing structure, the first end is inserted into the cavity and connected to the elastic limiting member.
12. The method according to claim 11, wherein the first end has a second fixing portion having an outer peripheral dimension larger than an outer peripheral dimension of the remaining portion of the reinforcing bar, the second fixing portion being connected to the elastic stopper in a plug-in manner, a second through hole and a mounting groove being provided on a side of the first fixing structure facing the battery pack, the second through hole and the mounting groove being respectively communicated with the cavity, one end of the mounting groove being communicated with the second through hole, the other end of the mounting groove being opened to a top surface or a bottom surface of the first fixing structure, a width of the mounting groove being larger than or equal to the outer peripheral dimension of the remaining portion of the reinforcing bar and smaller than the outer peripheral dimension of the second fixing portion, a forward projection pattern of the second fixing portion on a side surface of the first fixing structure facing the battery pack having a first area, a forward projection pattern of the second fixing portion on a reference plane parallel to the top surface or the bottom surface of the battery pack having a second area larger than or equal to the second area; in the step of connecting the first end with the first fixing structure, the reinforcing strip is placed into the cavity in a first state, the extending direction of the reinforcing strip in the first state is parallel to the surface of the first fixing structure, which faces one side of the battery pack, and then the reinforcing strip is turned to a second state, and the reinforcing strip extends in the first horizontal direction in the second state, so that the first end enters the cavity through the second through hole and is blocked at the inner side hole of the second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310312065.9A CN116014341B (en) | 2023-03-28 | 2023-03-28 | Battery device and method for attaching reinforcing bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310312065.9A CN116014341B (en) | 2023-03-28 | 2023-03-28 | Battery device and method for attaching reinforcing bar |
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| CN116014341A CN116014341A (en) | 2023-04-25 |
| CN116014341B true CN116014341B (en) | 2023-06-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4117865B2 (en) * | 1999-08-31 | 2008-07-16 | 松下電器産業株式会社 | Assembled battery |
| CN216698558U (en) * | 2022-01-29 | 2022-06-07 | 中创新航科技股份有限公司 | Battery box and battery package |
| CN114784434A (en) * | 2022-04-11 | 2022-07-22 | 中创新航科技股份有限公司 | Battery box and battery device |
| CN217788730U (en) * | 2022-07-26 | 2022-11-11 | 中创新航科技股份有限公司 | Bus bar support, bus bar assembly and battery device |
| CN115632207A (en) * | 2022-11-04 | 2023-01-20 | 厦门海辰储能科技股份有限公司 | Battery module, energy storage equipment and consumer |
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