CN113067089A - Battery pack, battery pack mounting structure, and battery pack mounting method - Google Patents
Battery pack, battery pack mounting structure, and battery pack mounting method Download PDFInfo
- Publication number
- CN113067089A CN113067089A CN202110309832.1A CN202110309832A CN113067089A CN 113067089 A CN113067089 A CN 113067089A CN 202110309832 A CN202110309832 A CN 202110309832A CN 113067089 A CN113067089 A CN 113067089A
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- battery pack
- battery
- frame
- state
- bottom plate
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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 invention relates to the technical field of electric automobiles, and particularly discloses a battery pack, a battery pack mounting structure and a battery pack mounting method. The battery pack includes: the battery modules comprise battery bodies and end plates, and the two ends of each battery body are connected with the end plates respectively; the bottom plate assembly comprises a bottom plate and a plurality of mounting plates arranged on the bottom plate at intervals, the end plates are connected with the mounting plates, and the battery body is arranged between the two adjacent mounting plates. The battery pack mounting structure includes: the frame comprises a frame body, wherein the frame body forms an accommodating cavity for accommodating the battery pack; the locking mechanism is connected to the frame body and can be switched between an avoiding state and a locking state of the locking battery pack, and when the locking mechanism is in the avoiding state, the battery pack can be mounted on the frame from bottom to top. The battery pack, the battery pack mounting structure and the battery pack mounting method provided by the invention can solve the problem that the battery module is damaged because high-temperature welding slag falls onto the battery module in the process of welding the upper cover.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a battery pack, a battery pack mounting structure and a battery pack mounting method.
Background
The electric automobile replaces fuel with batteries, can realize zero emission and low noise, and is an important means for solving energy and environmental problems. In the prior art, a battery module is used for supplying power to an electric automobile, the battery module is installed on a frame from top to bottom, and a cross beam is arranged on the frame and can support the battery module; after the battery module is installed on the frame, an upper cover is welded on the frame and is arranged on the upper side of the electric vehicle bag to protect the battery module. However, high-temperature welding slag is likely to fall onto the battery module during the process of welding the upper cover, resulting in damage to the battery module.
Disclosure of Invention
The invention aims to provide a battery pack, a battery pack mounting structure and a battery pack mounting method, and aims to solve the problem that a battery module is damaged due to the fact that high-temperature welding slag falls onto the battery module in the process of welding an upper cover.
In order to achieve the purpose, the invention adopts the following technical scheme:
a battery pack, comprising:
the battery modules comprise battery bodies and end plates, and the two ends of each battery body are connected with the end plates respectively;
the bottom plate assembly comprises a bottom plate and a plurality of mounting plates arranged on the bottom plate at intervals, the end plates are connected with the mounting plates, and the battery body is arranged between the two adjacent mounting plates.
Preferably, the battery body is bonded to the bottom plate, and the mounting plate is connected to the end plate by a bolt.
In order to achieve the purpose, the invention adopts the following technical scheme:
a battery pack mounting structure comprising:
the frame comprises a frame body, and the frame body forms an accommodating cavity for accommodating the battery pack;
the locking mechanism is connected with the frame body and can be switched between an avoiding state and a locking state of the battery pack, and when the locking mechanism is in the avoiding state, the battery pack can be installed on the frame from bottom to top.
Preferably, the locking mechanism is rotatably connected to the frame body to switch between the avoiding state and the locking state.
Preferably, the locking mechanism includes:
the handle is rotatably connected to the lower side of the frame body;
the positioning part is connected to the upper side of the handle, and a positioning hole for inserting the positioning part is formed in the battery pack; rotating the handle to the avoiding state, wherein the positioning part is positioned under the frame body; the handle is rotated to the locking state, the positioning portion is located in the containing cavity, and the positioning portion can be inserted into the positioning hole.
Preferably, the handle comprises a holding part and a supporting part which are connected in an L shape, and the positioning part is connected to the upper side of the supporting part.
Preferably, the positioning part is inserted into the positioning hole, and the support part is capable of supporting the battery pack.
Preferably, the lower surface of the frame body is provided with a circular arc-shaped avoiding groove for avoiding the rotation of the positioning part.
In order to achieve the purpose, the invention adopts the following technical scheme:
a battery pack installation method, comprising:
and 2, mounting the battery pack on the frame from top to bottom.
Preferably, the step 2 comprises:
and 23, descending the battery pack to enable the battery pack to be inserted into the locking mechanism.
The invention has the beneficial effects that:
the battery pack provided by the invention comprises a plurality of battery modules and the bottom plate assembly, wherein the bottom plate assembly is used for mounting the battery modules so as to integrate the battery modules into a whole, so that the battery modules can be conveniently mounted on a frame from bottom to top at one time, the mounting efficiency is improved, and the condition that the upper cover influences the series connection of the battery modules is effectively avoided.
According to the battery pack mounting structure provided by the invention, the locking mechanism supports and locks the lower side of the battery pack, so that before the battery pack is mounted, the locking mechanism is in an avoiding state firstly, so that the battery pack can enter the accommodating cavity from bottom to top, and after the battery pack enters the accommodating cavity, the locking mechanism is switched to the locking state to lock the battery pack. The locking mechanism provided by the invention replaces a cross beam in the prior art, and the locking mechanism can not influence the battery pack to enter the accommodating cavity from bottom to top, and can also play a role in supporting and locking the battery pack.
Compared with the prior art that the battery pack is firstly installed on the frame from top to bottom and then the upper cover is welded on the upper side of the battery pack, the battery pack installation method provided by the invention can be used for firstly welding the upper cover on the frame and then installing the battery pack on the frame from top to bottom, so that the installation of the battery pack cannot be influenced by the upper cover, and meanwhile, welding slag is effectively prevented from falling onto the battery module in the welding process of the upper cover. Before installing the frame with the battery module, will be integrated as an organic whole with a plurality of battery modules earlier, form the battery package, a plurality of battery modules are installed in the frame from bottom to top once only, effectively avoid the upper cover to influence the condition emergence that the battery module establishes ties on the one hand, and on the other hand can improve the installation effectiveness.
Drawings
Fig. 1 is an exploded view of a battery pack provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a battery pack according to an embodiment of the present invention;
fig. 3 is an exploded view of a battery pack and a vehicle frame provided by an embodiment of the invention;
FIG. 4 is a schematic structural view of a vehicle frame provided by an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
fig. 6 is a schematic structural diagram of another view angle of the battery pack according to the embodiment of the invention;
FIG. 7 is a partial enlarged view at B in FIG. 6;
fig. 8 is a bottom view of the battery pack of the present invention mounted to a vehicle frame;
FIG. 9 is an enlarged view of a portion of FIG. 8 at D;
FIG. 10 is an enlarged view of a portion of FIG. 8 at C;
fig. 11 is a cross-sectional view at E-E in fig. 8.
In the figure:
1. a battery pack; 11. a battery module; 111. a battery body; 112. an end plate; 12. a base plate assembly; 121. a base plate; 1211. positioning holes; 122. mounting a plate; 13. a bolt;
2. a frame; 21. a frame body; 22. an accommodating chamber;
3. a locking mechanism; 31. a handle; 311. a grip portion; 312. a support portion; 32. a positioning part; 33. a rotating shaft;
4. and (7) covering.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the present invention, the directional terms such as "upper", "lower", "left", "right", "inner" and "outer" are used for easy understanding without making a contrary explanation, and thus do not limit the scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; 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 in specific cases to those skilled in the art.
The embodiment provides a battery pack installation method, which is used in an electric vehicle, but is not limited to the electric vehicle, and can also be used in other transportation equipment which needs to be driven by a battery, so that a plurality of battery modules 11 can be conveniently installed on a frame 2 from bottom to top.
As shown in fig. 1 to fig. 3, the battery pack installation method provided by this embodiment includes:
And 2, mounting the battery pack 1 on the frame 2 from top to bottom.
Compared with the prior art that the battery pack 1 is firstly installed on the frame 2 from top to bottom and then the upper cover 4 is welded on the upper side of the battery pack 1, the battery pack installation method provided by the embodiment can be used for firstly welding the upper cover 4 on the frame 2 and then installing the battery pack 1 on the frame 2 from bottom to top, so that the installation of the battery pack 1 cannot be influenced by the upper cover 4, and meanwhile, welding slag is effectively prevented from falling onto the battery module 11 in the welding process of the upper cover 4. Before installing frame 2 with battery module 11, earlier integrated as an organic whole a plurality of battery modules 11, form battery package 1, a plurality of battery modules 11 are installed in frame 2 from bottom to top once only, effectively avoid upper cover 4 to influence the condition emergence that battery module 11 establishes ties on the one hand, and on the other hand can improve the installation effectiveness.
As shown in fig. 1 and fig. 2, the battery pack 1 provided in this embodiment includes a plurality of battery modules 11 and a bottom plate assembly 12, where the bottom plate assembly 12 is used to mount the plurality of battery modules 11, so as to integrate the plurality of battery modules 11 into a whole, and further facilitate mounting the plurality of battery modules 11 on the frame 2 from bottom to top at one time.
Specifically, each of the plurality of battery modules 11 includes a battery body 111 and an end plate 112, and the end plates 112 are connected to both ends of the battery body 111. The bottom plate assembly 12 includes a bottom plate 121 and a plurality of mounting plates 122 disposed on the bottom plate 121 at intervals, the end plate 112 is connected to the mounting plates 122, and the battery body 111 is disposed between two adjacent mounting plates 122. In this embodiment, three mounting plates 122 are disposed on the bottom plate 121 at intervals, two sets of battery modules 11 are disposed along the arrangement direction of the three mounting plates 122, and two sets of battery modules 11 are disposed at intervals along the direction perpendicular to the arrangement direction of the three mounting plates 122, that is, four sets of battery modules 11 are connected to the bottom plate assembly 12.
Preferably, the battery body 111 is adhered to the bottom plate 121, and the mounting plate 122 is connected to the end plate 112 through the bolt 13, so that on one hand, the connection strength between the bottom plate assembly 12 and the battery module 11 can be ensured, and on the other hand, the bottom plate assembly 12 and the battery module 11 are uniformly stressed, thereby avoiding the damage of the bottom plate assembly 12 and the battery module 11 due to stress concentration.
As shown in fig. 3, in order to support the battery pack 1 mounted to the vehicle frame 2, the present embodiment also provides a battery pack mounting structure including the lock attachment mechanism 3 and the vehicle frame 2 described above. Frame 2 includes support body 21, and support body 21 forms holds chamber 22 that holds battery package 1, and the upper end lid that holds chamber 22 is equipped with upper cover 4, and battery package 1 is located the downside of upper cover 4. The locking mechanism 3 is connected to the frame body 21, the locking mechanism 3 can be switched between an avoiding state and a locking state of the locking battery pack 1, and when the locking mechanism 3 is in the avoiding state, the battery pack 1 can be mounted on the frame 2 from bottom to top.
Because the locking mechanism 3 supports and locks the lower side of the battery pack 1, before the battery pack 1 is installed, the locking mechanism 3 is firstly in a avoiding state, so that the battery pack 1 can enter the accommodating cavity 22 from bottom to top, and after the battery pack 1 enters the accommodating cavity 22, the locking mechanism 3 is switched to a locking state to lock the battery pack 1. The locking mechanism 3 provided by the embodiment replaces a cross beam in the prior art, and the locking mechanism 3 does not affect the battery pack 1 to enter the accommodating cavity 22 from bottom to top, and can also play a role in supporting and locking the battery pack 1.
Specifically, as shown in fig. 4 and 5, the locking mechanism 3 includes a handle 31 and a positioning portion 32, the handle 31 is connected to the lower side of the frame body 21, and the positioning portion 32 is connected to the upper side of the handle 31, as shown in fig. 6 and 7, a positioning hole 1211 for inserting the positioning portion 32 is provided on the bottom plate 121 of the battery pack 1, and when the locking mechanism 3 is in a locking state, the positioning portion 32 can be inserted into the positioning hole 1211, so as to position and support the battery pack 1.
Specifically, as shown in fig. 5, the positioning portion 32 is a positioning pin, the positioning hole 1211 is a circular hole, and the end portion of the positioning pin has a conical structure so as to guide the positioning pin when the positioning pin is inserted into the positioning hole 1211. As shown in fig. 4, it is preferable that locking mechanisms 3 are disposed on both sides of the frame 2 in the width direction, and a plurality of sets of locking mechanisms 3 are disposed in the length direction of the frame 2, so as to improve the stability of the battery pack 1.
As shown in fig. 8 to 10, the locking mechanism 3 is preferably switched between the retracted state and the locked state by rotating, that is, the locking mechanism 3 is rotatably connected to the frame body 21, so that the locking mechanism 3 is switched between the locked state and the retracted state.
Specifically, the handle 31 is rotatably connected to the lower side of the frame 2, and the handle 31 is rotated to enable the locking mechanism 3 to be in the avoiding state (as shown in fig. 9), and at this time, the positioning portion 32 is located right below the frame body 21, so that when the battery pack 1 is installed into the accommodating cavity 22 from bottom to top, the positioning portion 32 does not interfere with the battery pack 1. The handle 31 is rotated to place the locking mechanism 3 in the locking state (as shown in fig. 10 and 11), and at this time, the positioning portion 32 is located in the accommodating cavity 22, and the positioning portion 32 can be inserted into the positioning hole 1211.
In order to prevent the battery pack 1 placed in the accommodating cavity 22 from obstructing the locking mechanism 3 from being switched from the avoiding state to the locking state, it is preferable that after the battery pack 1 is inserted into the accommodating cavity 22, the battery pack 1 is continuously lifted to make the height of the battery pack 1 higher than the height of the positioning portion 32, so that the positioning portion 32 does not contact with the battery pack 1 in the process of rotating the positioning portion 32 to the position opposite to the positioning hole 1211, and after the positioning portion 32 is rotated to the position, the battery pack 1 is lowered to make the positioning portion 32 be inserted into the positioning hole 1211.
Preferably, the lower surface of the frame body 21 is provided with a circular arc-shaped avoiding groove (not shown) for avoiding the rotation of the positioning portion 32, so that the positioning portion 32 can rotate to the right below the frame body 21 without interfering with the frame body 21.
As shown in fig. 10, the handle 31 includes a holding portion 311 and a supporting portion 312 connected in an L shape, the positioning portion 32 is connected to an upper side of the supporting portion 312, and a user holds the holding portion 311 to drive the handle 31 to rotate. Because the handle 31 is in an L-shaped structure, when the locking mechanism 3 is in the locking state, the holding portion 311 can be accommodated under the frame body 21, so as to avoid accidental rotation of the handle 31, and when the locking mechanism 3 is in the avoiding state, the positioning portion 32 is located in the accommodating cavity 22, and the holding portion 311 protrudes out of the frame body 21, so that the holding portion 311 can be conveniently used for holding. As shown in fig. 10 and 11, the handle 31 is rotatably connected to the frame 2 via the rotating shaft 33, and the rotating shaft 33 is located at the connection position of the holding portion 311 and the supporting portion 312.
Preferably, when the positioning portion 32 is inserted into the positioning hole 1211, the supporting portion 312 can support the battery pack 1, so as to prevent the battery pack 1 from concentrating the acting force on the positioning portion 32 and make the locking mechanism 3 uniformly stressed.
The installation step of the battery pack 1 provided by the present embodiment includes:
connecting four battery modules 11 to a bottom plate assembly 12, and connecting the four battery modules 11 in series to form a battery pack 1;
rotating the handle 31 to enable the locking mechanism 3 connected with the frame 2 to be in an avoiding state, and inserting the battery pack 1 into the accommodating cavity 22 of the frame 2 from top to bottom through a jacking device and the like;
rotating the handle 31 to make the locking mechanism 3 in the locking state;
the battery pack 1 is lowered by a lift-up device or the like so that the positioning portions 32 of the locking mechanism 3 are inserted into the positioning holes 1211 of the battery pack 1.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A battery pack, comprising:
the battery modules (11) respectively comprise a battery body (111) and end plates (112), and the two ends of the battery body (111) are respectively connected with the end plates (112);
the bottom plate assembly (12) comprises a bottom plate (121) and a plurality of mounting plates (122) arranged on the bottom plate (121) at intervals, the end plate (112) is connected with the mounting plates (122), and the battery body (111) is arranged between the two adjacent mounting plates (122).
2. The battery pack according to claim 1, wherein the battery body (111) is bonded to the bottom plate (121), and the mounting plate (122) and the end plate (112) are connected by a bolt (13).
3. A battery pack mounting structure, comprising:
the vehicle frame (2) comprises a frame body (21), wherein the frame body (21) forms an accommodating cavity (22) for accommodating the battery pack (1);
lock attach mechanism (3), connect in support body (21), lock attach mechanism (3) can dodge the state with the lock attaches switch between the lock of battery package (1) attaches the state, works as lock attach mechanism (3) are located when dodging the state, battery package (1) can from bottom to top install in frame (2).
4. The battery pack mounting structure according to claim 3, wherein the lock attachment mechanism (3) is rotatably connected to the frame body (21) to switch between the retracted state and the lock attachment state.
5. The battery pack mounting structure according to claim 3, wherein the lock mechanism (3) includes:
the handle (31) is rotatably connected to the lower side of the frame body (21);
a positioning part (32) connected to the upper side of the handle (31), wherein a positioning hole (1211) for inserting the positioning part (32) is arranged on the battery pack (1); the handle (31) is rotated to the avoiding state, and the positioning part (32) is positioned right below the frame body (21); the handle (31) is rotated to the locking state, the positioning part (32) is located in the accommodating cavity (22), and the positioning part (32) can be inserted into the positioning hole (1211).
6. The battery pack mounting structure according to claim 5, wherein the handle (31) includes a grip portion (311) and a support portion (312) connected in an L-shape, and the positioning portion (32) is connected to an upper side of the support portion (312).
7. The battery pack mounting structure according to claim 6, wherein the positioning portion (32) is inserted into the positioning hole (1211), and the supporting portion (312) is capable of supporting the battery pack (1).
8. The battery pack mounting structure according to claim 5, wherein a circular arc-shaped avoidance groove for avoiding rotation of the positioning portion (32) is provided on a lower surface of the frame body (21).
9. A battery pack installation method, comprising:
step 1, connecting at least two battery modules (11) in series and connecting the battery modules with a bottom plate assembly (12) to form a battery pack (1);
and 2, mounting the battery pack (1) on the frame (2) from top to bottom.
10. The battery pack mounting method according to claim 9, wherein the step 2 includes:
step 21, enabling a locking mechanism (3) connected to the frame (2) to be in an avoiding state, and inserting the battery pack (1) into an accommodating cavity (22) of the frame (2) from top to bottom;
step 22, enabling the locking mechanism (3) to be in a locking state;
and 23, descending the battery pack (1) to enable the battery pack (1) to be inserted into the locking mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110309832.1A CN113067089A (en) | 2021-03-23 | 2021-03-23 | Battery pack, battery pack mounting structure, and battery pack mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110309832.1A CN113067089A (en) | 2021-03-23 | 2021-03-23 | Battery pack, battery pack mounting structure, and battery pack mounting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113067089A true CN113067089A (en) | 2021-07-02 |
Family
ID=76563245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110309832.1A Withdrawn CN113067089A (en) | 2021-03-23 | 2021-03-23 | Battery pack, battery pack mounting structure, and battery pack mounting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113067089A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155097A1 (en) * | 2022-02-17 | 2023-08-24 | Shanghai Xuan Yi New Energy Development Co., Ltd. | Battery pack, method for forming battery pack and electric vehicle |
-
2021
- 2021-03-23 CN CN202110309832.1A patent/CN113067089A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155097A1 (en) * | 2022-02-17 | 2023-08-24 | Shanghai Xuan Yi New Energy Development Co., Ltd. | Battery pack, method for forming battery pack and electric vehicle |
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Application publication date: 20210702 |
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