CN220021369U - Lithium iron phosphate battery pack for electric vehicle - Google Patents
Lithium iron phosphate battery pack for electric vehicle Download PDFInfo
- Publication number
- CN220021369U CN220021369U CN202321658582.3U CN202321658582U CN220021369U CN 220021369 U CN220021369 U CN 220021369U CN 202321658582 U CN202321658582 U CN 202321658582U CN 220021369 U CN220021369 U CN 220021369U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- buffer
- iron phosphate
- lithium iron
- installation cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 title claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 28
- 230000001681 protective effect Effects 0.000 claims abstract description 23
- 229920000742 Cotton Polymers 0.000 claims description 7
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a lithium iron phosphate battery pack for an electric vehicle, which comprises a protective shell, wherein a battery pack body is arranged in the protective shell, a top cover is detachably arranged at the top of the protective shell, an installation cavity is arranged in the protective shell, a buffer structure is arranged between the installation cavity and the battery pack body, the bottom of the installation cavity is elastically connected with a buffer plate, contact plates are arranged on two sides of the buffer plate, and one side of each contact plate is in sliding connection with the bottom of the installation cavity; the two sides of the mounting cavity are elastically connected with a rotating seat, and the rotating seat is rotationally connected with the contact plate; the buffer structure is arranged, and the bottom of the mounting cavity is elastically connected with the buffer plate, so that the battery pack body is subjected to buffer vibration reduction in the vertical direction; the contact plate can slide and rotate on the horizontal direction, and the contact plate is closely contacted with the side surface of the battery pack, so that vibration in the horizontal direction can be transmitted to the inside of the second buffer spring.
Description
Technical Field
The utility model relates to the technical field of electric vehicles, in particular to a lithium iron phosphate battery pack for an electric vehicle.
Background
The electric vehicle is greatly convenient for short-distance traffic, and plays an important role in national economy mainly through saving and protecting energy and environment, and the power for driving the electric vehicle is a lithium iron phosphate battery pack, a lithium iron phosphate battery, which is a lithium ion battery using lithium iron phosphate (LiFePO 4) as a positive electrode material and carbon as a negative electrode material, wherein the rated voltage of a monomer is 3.2V, the charging cut-off voltage is 3.6V-3.65V, and the lithium iron phosphate battery has the advantages of high working voltage, high energy density, long cycle life, good safety performance, small self discharge rate and no memory effect.
The existing lithium iron phosphate battery pack for the electric vehicle mainly comprises a shell and a lithium iron phosphate battery pack, and the effect of protecting the lithium iron phosphate battery pack is achieved by placing the lithium iron phosphate battery pack in the shell, for example, the lithium iron phosphate battery pack for the low-speed electric vehicle, which is disclosed as CN216624449U, comprises a shell, a cavity is formed in the shell, a mounting seat is arranged on the inner wall of the bottom of the cavity, a mounting groove is formed in the mounting seat, and a lithium iron phosphate battery pack device is arranged in the mounting groove.
When the lithium iron phosphate battery pack is arranged, the lithium iron phosphate battery pack device is fixedly connected with the buffer device on the inner wall of the cavity, but when the lithium iron phosphate battery pack is arranged, a worker needs to finish the arrangement in a gap between the battery pack and the inner cavity, and the connection is difficult in the connection process; meanwhile, when the buffer device damps vibration in the vertical direction of the battery pack, the cross fixing frame driving the side face through the battery pack is enabled to shake to indirectly damp vibration, the vibration of the battery pack in the vertical direction cannot be directly damped, and the mounting seat connected with the battery pack lacks elasticity, so that the damping effect is poor.
Disclosure of Invention
The utility model aims to solve the problems that the battery pack in the background art is poor in vibration reduction effect in the vertical direction and the battery pack and a buffer device are difficult to connect in a gap, and provides a lithium iron phosphate battery pack for an electric vehicle.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a lithium iron phosphate group battery for electric motor car, includes protective housing, protective housing's inside is provided with the group battery body, protective housing's top detachable is provided with the top cap, protective housing's inside is provided with the installation cavity, is provided with buffer structure between installation cavity and the group battery body, buffer structure includes:
the buffer plate is elastically connected with the bottom of the mounting cavity;
the two contact plates are arranged on two sides of the buffer plate, and one side of each contact plate is slidably connected with the bottom of the mounting cavity;
and the two rotating seats are arranged on two sides of the mounting cavity, are elastically connected with the mounting cavity, and are rotatably connected with the contact plate.
As a further scheme of the utility model: the bottom of installation chamber is provided with the mounting groove, is provided with a plurality of first buffer springs in the mounting groove, and the buffer board is connected at the top of first buffer spring.
As a further scheme of the utility model: the one side that two contact plates kept away from each other all slidable is provided with the sliding seat, and the sliding seat rotates the rotatable connection of seat nearby, rotates and is provided with the second buffer spring between the inner wall in seat and the installation cavity.
As a further scheme of the utility model: the sliding seat is arranged in the symmetrical plane of the contact plate.
As a further scheme of the utility model: the side wall of the mounting cavity, which is far away from the second buffer spring, is provided with elastic cotton.
As a further scheme of the utility model: the bottom both sides of installation chamber are provided with the sliding tray, and the bottom both sides of both sides sliding tray are provided with the spacing groove, and the bottom of contact plate is provided with the slide bar, and the slide bar is in the slidable connection of spacing inslot.
As a further scheme of the utility model: a gap is reserved between the bottom of the contact plate and the bottom of the mounting cavity.
The utility model has the beneficial effects that:
(1) According to the lithium iron phosphate battery pack for the electric vehicle, the buffer structure is arranged, and the bottom of the installation cavity is elastically connected with the buffer plate, so that the battery pack body is subjected to buffer vibration reduction in the vertical direction; the contact plates are arranged in a tilting and rotatable mode in the horizontal direction, the contact plates on two sides can tightly contact and clamp the battery pack body under the elasticity of the first buffer springs, and vibration in the horizontal direction, received by the battery pack body, can be transmitted into the second buffer springs or into elastic cotton through the contact plates, so that the battery pack body is buffered in the horizontal direction;
(2) According to the lithium iron phosphate battery pack for the electric vehicle, the sliding groove and the limiting groove are arranged, so that the contact plate can slide and rotate in the mounting cavity, the contact plate can clamp battery pack bodies with different sizes, the contact plate can clamp and fix the battery pack bodies through rotation of the contact plate, and the mounting process of the battery pack and the buffer structure is simplified.
Drawings
The utility model is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a lithium iron phosphate battery pack for an electric vehicle according to the present utility model;
FIG. 2 is a schematic cross-sectional view of a lithium iron phosphate battery for an electric vehicle according to the present utility model;
figure 3 is an internal cross-sectional view of the protective housing of the present utility model;
fig. 4 is a schematic top view of the protective housing of the present utility model.
In the figure: 1. a protective housing; 11. a fixed block; 12. a mounting cavity; 2. a battery pack body; 21. a handle; 3. a top cover; 31. a fixing plate; 4. a buffer structure; 41. a mounting groove; 42. a first buffer spring; 43. a buffer plate; 44. a sliding groove; 45. a limit groove; 46. a slide bar; 47. a contact plate; 48. a sliding seat; 49. a rotating seat; 410. a second buffer spring; 411. elastic cotton.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the utility model discloses a lithium iron phosphate battery pack for an electric vehicle, which comprises a protective shell 1, wherein a fixed block 11 is arranged at the bottom of the protective shell 1, an installation cavity 12 is arranged in the protective shell 1, a top plate of the protective shell 1 is detachably connected with a top cover 3, a pair of sides of the top cover 3 are penetrated with a fixed plate 31, a battery pack body 2 is arranged in the installation cavity 12, a lifting handle 21 is arranged on the top plate of the battery pack body 2, and the fixed plate 31 is penetrated from the lifting handle 21.
A buffer structure 4 is arranged between the mounting cavity 12 and the battery pack body 2, a mounting groove 41 of the buffer structure 4 is arranged at the bottom, a plurality of first buffer springs 42 are arranged in the mounting groove 41, and the top plates of the first buffer springs 42 are connected with the same buffer plate 43. The two sides of the bottom of the installation cavity 12 are provided with sliding grooves 44, two sides of the bottom of each sliding groove 44 are provided with limiting grooves 45, a sliding rod 46 is slidably connected in each limiting groove 45, the top of each sliding rod 46 is fixedly provided with a contact plate 47, one surface, far away from the contact plates 47, of each side is slidably connected with a sliding seat 48, two sides, close to the contact plates 47, of the installation cavity 12 are fixedly provided with second buffer springs 410, the other end of each second buffer spring 410 is fixedly connected with a rotating seat 49, and the rotating seat 49 is rotatably connected with the adjacent sliding seat 48; the inner walls of both sides of the installation cavity 12 where the second buffer spring 410 is not provided are fixedly provided with elastic cotton 411.
When the lithium iron phosphate battery pack for the electric vehicle is used, the battery pack body 2 is lifted by the lifting handle 21 to be placed in the installation cavity 12 in the protective shell 1, and the buffer structure 4 in the installation cavity 12 is used for fixing the battery pack body 2 in a contact manner. The bottom of the battery pack body 2 presses the buffer plate 43, so that the first buffer spring 42 below the buffer plate 43 presses, and the top surface of the buffer plate 43 is flush with the bottom surface of the mounting cavity 12; when the battery pack body 2 is gradually placed in the mounting cavity 12, the contact plates 47 with inclined sides are contacted with the two sides of the battery pack body 2, and along with the downward movement of the battery pack body 2, the sliding rods 46 arranged at the bottoms of the contact plates 47 slide in the limit grooves 45, so that the contact plates 47 at the two sides move in the directions away from each other; meanwhile, the contact plates 47 are subjected to the elastic force of the second buffer springs 410, so that the sliding seat 48 and the rotating seat 49 relatively rotate, the sliding seat 48 relatively slides on the back surface of the contact plates 47, the second buffer springs 410 change the elastic force direction of the contact plates 47, the contact plates 47 on two sides rotate around the sliding rods 46 until the battery pack body 2 is placed and installed in the installation cavity 12, and the contact plates 47 on two sides are positioned in a vertical plane and are in close contact with the side surfaces of the battery pack body 2, so that the battery pack body 2 is fixed. Placing the top cover 3 on the top of the protective shell 1, relatively fixing the top cover 3 and the protective shell 1, then penetrating out the fixing plates 31 from two sides of the top cover 3, and penetrating the fixing plates 31 from the lower part of the lifting handle 21 at the same time, so that the lifting handle 21 is fixed between the fixing plates 31 and the inner wall of the top cover 3; the protective housing 1 is positioned and mounted in cooperation with the internal battery pack body 2 by the fixing block 11. When the battery pack body 2 receives external impact vibration, the battery pack body 2 can transmit the vibration to the second buffer spring 410 through the contact plate 47 in the horizontal direction, or the battery pack body 2 transmits the vibration to the elastic cotton 411 in close contact, thereby reducing the vibration of the battery pack body 2 in the horizontal direction; in the vertical direction, the battery pack body 2 can transmit vibration into the plurality of first buffer springs 42 at the bottom through the buffer plate 43 below, thereby reducing the vibration of the battery pack body 2 in the vertical direction.
Wherein the sliding seat 48 is disposed in a symmetrical plane of the contact plate 47, so that the elastic force provided by the second buffer spring 410 to the contact plate 47 can be uniform; a gap is reserved between the bottom of the contact plate 47 and the bottom of the mounting cavity 12, so that the contact plate 47 is prevented from contacting the bottom of the mounting cavity 12 in the rotating process; when the battery pack body 2 is installed and placed in the installation cavity 12, the fixing plate 31 is in close contact with the handle 21, so that the fixing plate 31 can play a fixing and limiting role on the battery pack body 2.
The working principle of the utility model is as follows: according to the lithium iron phosphate battery pack for the electric vehicle, the buffer structure 4 is arranged, and the buffer plate 43 is elastically connected to the bottom of the installation cavity 12, so that the battery pack body 2 is subjected to buffer vibration reduction in the vertical direction; the contact plates 47 which can rotate obliquely are arranged in the horizontal direction, the contact plates 47 on two sides can tightly contact and clamp the battery pack body 2 under the elasticity of the first buffer springs 42, and vibration in the horizontal direction, received by the battery pack body 2, can be transmitted into the second buffer springs 410 or into the elastic cotton 411 through the contact plates 47, so that the battery pack body 2 is buffered in the horizontal direction; by arranging the sliding groove 44 and the limiting groove 45, the contact plate 47 can slide and rotate in the mounting cavity 12, so that the contact plate 47 can clamp the battery pack bodies 2 with different sizes; through having set up the top cap 3 that can dismantle fixedly, the fixed plate 31 of wearing to establish in the top cap 3 can fix the handle 21 in the below of top cap 3, makes the group battery body 2 further spacing fix inside the installation cavity 12.
The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (7)
1. Lithium iron phosphate group battery for electric motor car, including protective housing (1), the inside of protective housing (1) is provided with group battery body (2), and the top of protective housing (1) detachable is provided with top cap (3), its characterized in that, the inside of protective housing (1) is provided with installation cavity (12), is provided with buffer structure (4) between installation cavity (12) and group battery body (2), buffer structure (4) include:
a buffer plate (43) elastically connected to the bottom of the installation cavity (12);
two contact plates (47) provided on both sides of the buffer plate (43), one side of the contact plates (47) being slidably connected to the bottom of the installation cavity (12);
and the two rotating seats (49) are arranged on two sides of the mounting cavity (12), the rotating seats (49) are elastically connected with the mounting cavity (12), and the rotating seats (49) are rotatably connected with the contact plate (47).
2. The lithium iron phosphate battery pack for the electric vehicle according to claim 1, wherein a mounting groove (41) is formed in the bottom of the mounting cavity (12), a plurality of first buffer springs (42) are arranged in the mounting groove (41), and the tops of the first buffer springs (42) are connected with a buffer plate (43).
3. The lithium iron phosphate battery pack for an electric vehicle according to claim 1, wherein both of the surfaces of the two contact plates (47) away from each other are slidably provided with a slide seat (48), the slide seat (48) is rotatably connected with a nearby rotating seat (49), and a second buffer spring (410) is provided between the rotating seat (49) and the inner wall of the installation cavity (12).
4. A lithium iron phosphate battery for electric vehicles according to claim 3, characterized in that the sliding seat (48) is arranged in the symmetry plane of the contact plate (47).
5. The lithium iron phosphate battery pack for an electric vehicle according to claim 1, wherein the side wall of the installation cavity (12) away from the second buffer spring (410) is provided with elastic cotton (411).
6. The lithium iron phosphate battery pack for an electric vehicle according to claim 1, wherein sliding grooves (44) are provided on both sides of the bottom of the installation cavity (12), limiting grooves (45) are provided on both sides of the bottom of the sliding grooves (44) on both sides, sliding rods (46) are provided on the bottom of the contact plate (47), and the sliding rods (46) are slidably connected in the limiting grooves (45).
7. The lithium iron phosphate battery for electric vehicles according to claim 1, characterized in that a gap is left between the bottom of the contact plate (47) and the bottom of the mounting cavity (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321658582.3U CN220021369U (en) | 2023-06-28 | 2023-06-28 | Lithium iron phosphate battery pack for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321658582.3U CN220021369U (en) | 2023-06-28 | 2023-06-28 | Lithium iron phosphate battery pack for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220021369U true CN220021369U (en) | 2023-11-14 |
Family
ID=88671247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321658582.3U Active CN220021369U (en) | 2023-06-28 | 2023-06-28 | Lithium iron phosphate battery pack for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220021369U (en) |
-
2023
- 2023-06-28 CN CN202321658582.3U patent/CN220021369U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |