CN111301135A - Connection structure between battery pack output part protection plate, battery pack box body and vehicle body - Google Patents
Connection structure between battery pack output part protection plate, battery pack box body and vehicle body Download PDFInfo
- Publication number
- CN111301135A CN111301135A CN201911100887.0A CN201911100887A CN111301135A CN 111301135 A CN111301135 A CN 111301135A CN 201911100887 A CN201911100887 A CN 201911100887A CN 111301135 A CN111301135 A CN 111301135A
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- core
- battery pack
- bushing
- lining
- main body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/66—Arrangements of batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The connection structure between the battery pack output part protection plate, the battery pack box body and the vehicle body comprises the battery pack box body, a vehicle body auxiliary frame, a protection plate made of a steel plate and an auxiliary plate bushing. The subplate bush comprises a metal lining core and a rubber lining core outer sleeve. The rubber lining core outer sleeve comprises a core upper layer, a core middle layer and a core lower layer. The lining core main body and the lining core flange of the metal lining core are provided with main body through holes. The free height of the rubber bushing core outer sleeve is larger than the length of the bushing core main body, and the working height of the rubber bushing core outer sleeve is equal to the length of the bushing core main body. The lining core main body is inserted in the outer sleeve through hole. The auxiliary plate bushing is arranged on one side of the connecting frame of the protection plate on the battery pack box body, or on one side of the protection plate on the auxiliary frame of the vehicle body. The core middle level is located the U-shaped spread groove of establishing on the guard plate, and the lower surface on core upper strata and the upper surface laminating of guard plate, the upper surface on core lower floor and the lower surface laminating of guard plate. The invention can prevent the output part of the battery pack from being damaged by mud, water, sand and the like in the driving process.
Description
Technical Field
The invention relates to an engine part, in particular to a connecting structure which can prevent a connecting point between a protective plate for protecting an output part of a battery pack and a battery pack box body and a vehicle body from being damaged due to the pulling phenomenon of an electric vehicle in the driving process.
Background
Nowadays, the technology development is more and more advanced, the electric automobile is generally popularized, and the battery pack is an indispensable component of the electric automobile, so that the protection of the battery pack is strengthened and important. The protection of the battery pack includes protection of the battery pack against the external output connection portion. At present, the protection of the external output part of the battery pack is realized by adopting plastic plates, and only mud, water, sand and the like splashed from the ground in the driving process of an automobile can be protected, so that the impact resistance is poor; in addition, all adopt the bolt rigid connection mode to connect between guard plate and battery package box and the automobile body that the external output part of present electric automobile battery package protects, in whole car motion process, because the automobile body wrench movement can cause the connecting point department between guard plate and battery package box and the automobile body to appear dragging the phenomenon, very easily cause the damage of these connecting points, it is very meaningful thing to find a connection structure that can make the guard plate that the output part of battery package protects and battery package box and between the automobile body homoenergetic avoid appearing dragging the phenomenon and damaging because of the electric motor car in the driving process.
Disclosure of Invention
The invention mainly aims to provide a connecting structure which can prevent a connecting point between a protective plate for protecting an output part of a battery pack and a battery pack box body or a vehicle body from being damaged due to the pulling phenomenon of an electric vehicle in the driving process.
The technical scheme adopted by the invention is as follows: a connecting structure between a protection plate of an output part of a battery pack and a battery pack box body and a vehicle body comprises the battery pack box body, a vehicle body auxiliary frame, the protection plate and a protection plate bushing. The guard plate bushing comprises a metal lining core and a rubber lining core outer sleeve. The rubber lining core outer sleeve comprises a core upper layer, a core middle layer and a core lower layer. The upper end and the lower end of the core middle layer are respectively connected with the lower end of the core upper layer and the lower end of the core lower layer. The outer diameter of the lining core main body of the metal lining core is smaller than that of the lining core flange of the metal lining core, and main body through holes matched with the bolts are formed in the lining core main body and the lining core flange. The free height of the rubber bushing core outer sleeve is larger than the length of the bushing core main body, and the working height of the rubber bushing core outer sleeve is equal to the length of the bushing core main body. The rubber lining core outer sleeve is provided with an outer sleeve through hole with the diameter smaller than the outer diameter of the lining core main body, and the lining core main body is inserted into the outer sleeve through hole. When the guard plate bushing is used for connecting the guard plate and the connecting frame on the battery pack box body together through the bolt to realize the connection of the guard plate and the battery pack box body, the corresponding part of the guard plate, which is positioned on one side of the battery pack box body, is provided with a U-shaped connecting groove matched with the middle layer of the core; and when the guard plate bush is used for connecting the guard plate and the auxiliary frame of the vehicle body together through the bolt, so that the guard plate is connected with the vehicle body, the corresponding part of one side of the guard plate, which is close to the auxiliary frame of the vehicle body, is provided with a U-shaped connecting groove matched with the middle layer of the core. The core middle level is located the U-shaped spread groove, and the lower surface on core upper strata and the upper surface laminating of guard plate, the upper surface on core lower floor and the lower surface laminating of guard plate.
Preferably, the guard plate is a steel plate member.
Preferably, the vertically projected areas of the core upper layer and the core lower layer are congruent, and the minimum distance between the vertically projected outer contour line of the core middle layer and the vertically projected outer contour line of the core upper layer is 5 mm or more.
Preferably, the upper surface of the core upper layer is spaced from the upper surface of the core main body by a distance of 5 mm or more in a free state. In a free state, the distance between the upper surface of the core upper layer and the upper surface of the lining core main body is matched with the elasticity of the rubber lining core outer sleeve, certain hardness must be ensured, and the elasticity cannot be too large or too small, namely the distance is determined according to the specific elasticity of the rubber lining core outer sleeve.
As mentioned above, the guard plate bushing can be used for connecting the guard plate with the connecting frame on the battery pack box body through the bolt, and can also be used for connecting the guard plate with the auxiliary frame of the vehicle body through the bolt, so that the guard plate is connected with the vehicle body, and the method for realizing the connection is to arrange corresponding U-shaped connecting grooves at corresponding parts of the guard plate. By utilizing the battery pack box and the auxiliary frame of the vehicle body, the occurrence of the situation that the connecting structure between the protection plate and the battery pack box body and the auxiliary frame of the vehicle body is damaged due to the pulling phenomenon in the driving process of the electric vehicle can be effectively reduced. The steel plate is used for manufacturing the protection plate, so that the protection plate can be effectively prevented from being damaged by mud, water, sand and other foreign matters splashed from the ground. The vertical projection area of core upper strata and core lower floor is congruent, and the minimum distance between the outer contour line of the vertical projection on core middle level and the outer contour line of the vertical projection on core upper strata is more than or equal to 5 millimeters, then can guarantee the reliable connection between backplate bush and the guard plate. Therefore, the invention can prevent the output part of the battery pack from being damaged in the driving process.
Drawings
FIG. 1: the invention has a structure schematic diagram;
FIG. 2: a schematic top view of the present invention;
FIG. 3: A-A is a schematic cross-sectional view;
FIG. 4: a schematic structural view of the guard plate of example 1;
FIG. 5: the structure schematic diagram of the guard plate bushing in a free state;
FIG. 6: a schematic cross-sectional view of the apron bushing in a free state;
FIG. 7: a schematic cross-sectional view of the fender liner in the connected state;
in the figure: the battery pack comprises a battery pack box body 1, a connecting frame 1.1, a vehicle body auxiliary frame 2, a protection plate 3, a U-shaped connecting groove 3.1, a long hole 3.2, a protection plate bushing 4, a metal lining core 4.1, a lining core main body 4.11, a lining core flange 4.12, a rubber lining core outer sleeve 4.2, a core upper layer 4.21, a core middle layer 4.22, a core lower layer 4.23 and bolts 5.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
The first embodiment is as follows:
as shown in fig. 1 to 7, the present invention includes a battery pack case 1, a vehicle body subframe 2, a fender 3, and a fender liner 4. Wherein, the protection plate 3 is a steel plate part. The guard plate bushing 4 comprises a metal lining core 4.1 and a rubber lining core outer sleeve 4.2; the rubber lining core outer sleeve 4.2 comprises a core upper layer 4.21, a core middle layer 4.22 and a core lower layer 4.23. The upper end and the lower end of the core middle layer 4.22 are respectively connected with the lower end of the core upper layer 4.21 and the lower end of the core lower layer 4.23; the outer diameter of a lining core main body 4.11 of the metal lining core 4.1 is smaller than the outer diameter of a lining core flange 4.12 of the metal lining core 4.1, and main body through holes matched with the bolts 5 are arranged on the lining core main body 4.11 and the lining core flange 4.12; the free height of the rubber bushing core outer sleeve 4.2 is greater than the length of the bushing core main body 4.11 plus 5 mm, and the working height of the rubber bushing core outer sleeve 4.2 is equal to the length of the bushing core main body 4.11; the rubber bushing core outer sleeve 4.2 is provided with an outer sleeve through hole 4.24 with the diameter smaller than the outer diameter of the bushing core main body 4.11, and the bushing core main body 4.11 is inserted into the outer sleeve through hole 4.22. The corresponding position of the protection plate 3 on one side of the battery pack box body is provided with a U-shaped connecting groove 1.3 matched with the core middle layer 4.22, and the protection plate bushing 4 connects the protection plate 3 with the connecting frame 1.1 on the battery pack box body 1 through a bolt 5 penetrating through a main body through hole to realize the connection of the protection plate 3 and the battery pack box body. One side of the protection plate 3 close to the auxiliary frame 2 of the vehicle body is provided with a long hole 3.2 matched with the bolt 5, and the protection plate 3 is connected with the auxiliary frame 2 of the vehicle body by the bolt 5 in a known mode. The core middle layer 4.22 is positioned in the U-shaped connecting groove 3.1, the lower surface of the core upper layer 4.21 is attached to the upper surface of the protection plate 3, and the upper surface of the core lower layer 4.23 is attached to the lower surface of the protection plate 3. Preferably, the upper core layer 4.21, the middle core layer 4.22 and the lower core layer 4.23 are square cylinders with round corners, the vertical projection areas of the upper core layer 4.21 and the lower core layer 4.23 are equal, the side length of the square of the middle core layer 4.22 is smaller than the side length of the square of the upper core layer 4.21 by 8 mm, correspondingly, the groove width of a U-shaped connecting groove matched with the middle core layer 4.22, which is arranged at a corresponding part of one side of the battery pack box body of the protection plate 3, is equal to the side length of the square of the middle core layer 4.22, further preferably, the middle part of the side surface of the middle core layer 4.22 is provided with an oval bulge, and the distance between two intersection points of the oval bulge and the side surface of the middle core layer 4.22 and the distance between the side surfaces of the other two adjacent middle core. Core upper strata 4.21, core middle level 4.22, core lower floor 4.23 are the square column body of taking the fillet, are favorable to the correct continuous of backplate bush 4 and guard plate, and the protruding establishment of ellipse is favorable to the firm of backplate bush and guard plate to link to each other.
Example two:
the second embodiment is different from the first embodiment in that the guard plate bushing 4 is provided at a portion where the guard plate 3 is connected to the vehicle body subframe 2, correspondingly, a U-shaped connecting groove adapted to the core middle layer 4.22 is provided at a corresponding portion of the guard plate 3 on a side close to the vehicle body subframe 2, and the guard plate bushing 4 is connected to the vehicle body subframe 2 by a bolt 5 passing through the main body through hole so as to connect the guard plate to the vehicle body. And the protection plate and the battery pack case 1 are connected by a known bolt connection structure.
The above embodiments are merely preferred embodiments of the present invention, and not intended to limit the structure and scope of the invention. Indeed, many equivalent variations in the shapes, constructions and design objectives of the devices according to the present invention are possible. Therefore, all equivalent changes in the shapes, structures and design objectives of the present invention are intended to be covered by the present invention, and all such equivalent changes are intended to be protected by the present invention.
Claims (4)
1. A connection structure between a protection plate of an output part of a battery pack and a battery pack box body and a vehicle body comprises a battery pack box body (1), a vehicle body auxiliary frame (2) and a protection plate (3); the method is characterized in that: it is characterized by also comprising a guard plate lining (4); the guard plate bushing (4) comprises a metal lining core (4.1) and a rubber lining core outer sleeve (4.2); the rubber lining core outer sleeve (4.2) comprises a core upper layer (4.21), a core middle layer (4.22) and a core lower layer (4.23); the upper end and the lower end of the core middle layer (4.22) are respectively connected with the lower end of the core upper layer (4.21) and the lower end of the core lower layer (4.23); the outer diameter of a lining core main body (4.11) of the metal lining core (4.1) is smaller than the outer diameter of a lining core flange (4.12) of the metal lining core (4.1), and main body through holes matched with the bolts (5) are formed in the lining core main body (4.11) and the lining core flange (4.12); the free height of the rubber bushing core outer sleeve (4.2) is greater than the length of the bushing core main body (4.11), and the working height of the rubber bushing core outer sleeve (4.2) is equal to the length of the bushing core main body (4.11); the rubber lining core outer sleeve (4.2) is provided with an outer sleeve through hole (4.24) with the diameter smaller than the outer diameter of the lining core main body (4.11), and the lining core main body (4.11) is inserted into the outer sleeve through hole (4.22); when the guard plate bushing (4) is used for connecting the guard plate (3) and the connecting frame (1.1) on the battery pack box body (1) together through the bolt (5) to realize the connection of the guard plate (3) and the battery pack box body, the corresponding part of the guard plate (3) on one side of the battery pack box body is provided with a U-shaped connecting groove matched with the core middle layer (4.22); when the guard plate bushing (4) is used for connecting the guard plate (3) and the auxiliary frame (2) of the vehicle body together through the bolt (5) so as to realize the connection between the guard plate and the vehicle body, a U-shaped connecting groove matched with the middle core layer (4.22) is arranged at the corresponding part of one side, close to the auxiliary frame (2), of the guard plate (3); the core middle layer (4.22) is positioned in the U-shaped connecting groove, the lower surface of the core upper layer (4.21) is attached to the upper surface of the protection plate (3), and the upper surface of the core lower layer (4.23) is attached to the lower surface of the protection plate (3).
2. The structure of claim 1, wherein the connection structure between the protection plate of the output part of the battery pack and the case and the body of the battery pack comprises: the protection plate (3) is a steel plate workpiece.
3. The structure of claim 1, wherein the connection structure between the protection plate of the output part of the battery pack and the case and the body of the battery pack comprises: the vertical projection areas of the core upper layer (4.21) and the core lower layer (4.23) are identical, and the minimum distance between the outer contour line of the vertical projection of the core middle layer (4.22) and the outer contour line of the vertical projection of the core upper layer (4.21) is larger than or equal to 5 mm.
4. The structure of claim 1, wherein the connection structure between the protection plate of the output part of the battery pack and the case and the body of the battery pack comprises: in the free state, the distance between the upper surface of the core upper layer (4.21) and the upper surface of the lining core main body (4.12) is more than or equal to 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100887.0A CN111301135B (en) | 2019-11-12 | 2019-11-12 | Connection structure between battery pack output part protection plate, battery pack box body and vehicle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911100887.0A CN111301135B (en) | 2019-11-12 | 2019-11-12 | Connection structure between battery pack output part protection plate, battery pack box body and vehicle body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111301135A true CN111301135A (en) | 2020-06-19 |
| CN111301135B CN111301135B (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911100887.0A Active CN111301135B (en) | 2019-11-12 | 2019-11-12 | Connection structure between battery pack output part protection plate, battery pack box body and vehicle body |
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| CN (1) | CN111301135B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111409568A (en) * | 2020-03-09 | 2020-07-14 | 浙江零跑科技有限公司 | Protective structure in connection structure of battery pack and motor |
| CN115534703A (en) * | 2022-09-29 | 2022-12-30 | 浙江零跑科技股份有限公司 | Protective beam assembly and electric automobile |
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| CN1215457A (en) * | 1996-03-25 | 1999-04-28 | F·I·B·E·T·股份公司 | Mechanical coupling for elastic axial and radial constraint with torsional freedom, especially for elastic pivots and suspensions and the like |
| CN201133436Y (en) * | 2007-12-25 | 2008-10-15 | 奇瑞汽车股份有限公司 | Power-driven steering mechanism for automobile bracket liner bushing assembly |
| CN102468473A (en) * | 2010-11-18 | 2012-05-23 | 本田技研工业株式会社 | Connection structure for battery module, battery module and method of connecting terminals of battery modules |
| CN204567525U (en) * | 2015-05-07 | 2015-08-19 | 重庆中力新能源汽车股份有限公司 | The shockproof mounting structure of a kind of electric-vehicle-mounted electrical part |
| CN205439947U (en) * | 2016-03-02 | 2016-08-10 | 合肥国轩高科动力能源有限公司 | Locking formula electric vehicle battery box |
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2019
- 2019-11-12 CN CN201911100887.0A patent/CN111301135B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1215457A (en) * | 1996-03-25 | 1999-04-28 | F·I·B·E·T·股份公司 | Mechanical coupling for elastic axial and radial constraint with torsional freedom, especially for elastic pivots and suspensions and the like |
| CN201133436Y (en) * | 2007-12-25 | 2008-10-15 | 奇瑞汽车股份有限公司 | Power-driven steering mechanism for automobile bracket liner bushing assembly |
| CN102468473A (en) * | 2010-11-18 | 2012-05-23 | 本田技研工业株式会社 | Connection structure for battery module, battery module and method of connecting terminals of battery modules |
| CN204567525U (en) * | 2015-05-07 | 2015-08-19 | 重庆中力新能源汽车股份有限公司 | The shockproof mounting structure of a kind of electric-vehicle-mounted electrical part |
| CN205439947U (en) * | 2016-03-02 | 2016-08-10 | 合肥国轩高科动力能源有限公司 | Locking formula electric vehicle battery box |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111409568A (en) * | 2020-03-09 | 2020-07-14 | 浙江零跑科技有限公司 | Protective structure in connection structure of battery pack and motor |
| CN111409568B (en) * | 2020-03-09 | 2021-09-21 | 浙江零跑科技股份有限公司 | Protective structure in connection structure of battery pack and motor |
| CN115534703A (en) * | 2022-09-29 | 2022-12-30 | 浙江零跑科技股份有限公司 | Protective beam assembly and electric automobile |
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| CN111301135B (en) | 2021-03-26 |
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Address after: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Patentee after: Zhejiang Zero run Technology Co.,Ltd. Address before: 310051 1st and 6th floors, no.451 Internet of things street, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG LEAPMOTOR TECHNOLOGY Co.,Ltd. |
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