CN112721839A - Electric automobile storage battery fixing device and universal installation method - Google Patents
Electric automobile storage battery fixing device and universal installation method Download PDFInfo
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- CN112721839A CN112721839A CN202110078692.1A CN202110078692A CN112721839A CN 112721839 A CN112721839 A CN 112721839A CN 202110078692 A CN202110078692 A CN 202110078692A CN 112721839 A CN112721839 A CN 112721839A
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- storage battery
- fixing device
- battery
- support
- motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/04—Arrangement of batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a storage battery fixing device for an electric vehicle and a universal installation method, and the storage battery fixing device comprises a left front longitudinal beam of a vehicle body and a right front longitudinal beam of the vehicle body, wherein a left suspension bracket is connected to the left front longitudinal beam of the vehicle body, a right suspension bracket is connected to the right front longitudinal beam of the vehicle body, the lower ends of the left suspension bracket and the right suspension bracket are connected to a front cabin cross beam, an integrated motor and a gearbox are connected to the lower end of the front cabin cross beam in a suspension manner, an integrated power generation box and an air conditioner PTC are connected to the upper end of the front cabin cross beam, a storage battery transition bracket is connected to the left suspension bracket, and a storage battery is connected to the storage battery. The storage battery mounting and fixing structure is simple, the mounting and maintenance processes are easy to realize, and the weight is reduced.
Description
Technical Field
The invention discloses a storage battery fixing device and a universal installation method, belongs to the technical field of storage battery installation structure detection, and particularly discloses an electric vehicle storage battery fixing device and a universal installation method.
Background
The electric vehicle is equipped with a high-voltage power supply power battery, but a low-voltage power supply battery is still indispensable. The storage battery is used for supplying electric energy for starting the motor and low-voltage electric devices. The power assembly of the fuel automobile is an assembly formed by an engine and a gearbox and adopts three-point suspension. The power assembly of the electric automobile is provided with a motor controller, a vehicle-mounted charger, a DC \ DC, an air conditioning system and other parts besides an assembly consisting of a motor and a gearbox. If parts such as the motor controller, the vehicle-mounted charger, the DC \ DC and air conditioning system and the like are bound together with the motor and the gearbox by adopting a three-point suspension, the vibration of the motor and the gearbox can affect the parts such as the motor controller, the vehicle-mounted charger, the DC \ DC and the air conditioning system and the like. In the arrangement, in order to reduce the influence of the vibration of the motor and the gearbox on the components of a motor controller, a vehicle-mounted charger, a DC \ DC, an air conditioning system and the like, the motor and the gearbox are generally considered to be integrally suspended below a cross beam spanning left and right longitudinal beams of a front cabin, the components of the motor controller, the vehicle-mounted charger, the DC \ DC and the like are placed above the cross beam, and the left end and the right end of the cross beam are connected with suspension supports on the left and right front longitudinal beams of a vehicle body. The battery is arranged in the suspension support top that links to each other with left front longitudinal, if direct mount on left suspension support, then left suspension support just needs the very big of design, just can bear the tray of battery. The too big design of suspension support will influence the dismouting of motor, gearbox in the crossbeam below, and how to solve the battery installation fixed, it is a technological problem to reach each spare part easy dismounting feasibility of power assembly again.
The chinese new patents CN207631169U and CN201994357U only relate to the fixing manner of the storage battery on the storage battery frame, and cannot solve the aforementioned technical problems: the too big design of suspension support will influence the dismouting of motor, gearbox in the crossbeam below, and how to solve the battery installation fixed, it is a technological problem to reach each spare part easy dismounting feasibility of power assembly again.
Disclosure of Invention
The invention provides a storage battery fixing device of an electric vehicle and a universal mounting method aiming at the technical problems in the prior art.
The invention discloses a storage battery fixing device for an electric automobile, wherein a storage battery is arranged on a left suspension bracket of a power assembly through a transition bracket, and the disassembly and the assembly of a motor and a gearbox assembly hung below a front cabin beam are not influenced under the condition that parts such as a motor controller, a vehicle-mounted charger, an air conditioner PTC (positive temperature coefficient) and the like are arranged on the front cabin beam. The storage battery mounting and fixing structure can provide reliable fixing points for the storage battery, and the storage battery and a lower tray can be universally used on other vehicle types. The storage battery is simple in mounting structure, easy to realize in mounting, dismounting and maintaining processes and light in weight.
The electric vehicle comprises a left front longitudinal beam and a right front longitudinal beam of a vehicle body, wherein a left suspension bracket is connected to the left front longitudinal beam of the vehicle body, a right suspension bracket is connected to the right front longitudinal beam of the vehicle body, the lower ends of the left suspension bracket and the right suspension bracket are connected with a front cabin cross beam, an integrated motor and a gearbox are connected to the lower end of the front cabin cross beam in a suspension manner, an integrated power generation box and an air conditioner PTC are connected to the upper end of the front cabin cross beam, a storage battery transition bracket is connected to the left suspension bracket, and a storage battery is connected to the storage battery transition bracket through a storage battery tray.
In a preferred embodiment of the present invention, the integrated motor and transmission is connected to the front cross member via a left suspension point and a right suspension point, and the integrated motor and transmission is connected to the subframe via a third suspension point.
In a preferred embodiment of the present invention, the left suspension point and the right suspension point each include a connecting bolt arranged in a triangular structure, and the left suspension point is located below the battery transition bracket.
In a preferred embodiment of the present invention, the storage battery tray is in a box shape with an opening, a groove is arranged on a side edge of one side of the storage battery tray, a pressing strip is arranged on the other side of the storage battery tray, and four holes for connecting the storage battery transition support are arranged at the bottom of the storage battery tray.
In a preferred embodiment of the present invention, the battery transition bracket is in a box shape with an opening, and the battery transition bracket is provided with a first hole for connecting the battery tray and a second hole for connecting the left suspension bracket.
In a preferred embodiment of the present invention, a circular boss is disposed on the left suspension bracket and connected to the battery transition bracket.
In a preferred embodiment of the invention, the integrated power generation box comprises a motor controller, a vehicle-mounted charger and DC \ DC.
The invention also discloses a general installation method of the storage battery fixing device of the electric automobile, and during installation, the integrated power generation box and the air conditioner PTC are connected on the front cabin beam; respectively installing a left suspension bracket and a right suspension bracket on a left front longitudinal beam and a right front longitudinal beam of a vehicle body; mounting a motor and a gearbox below a front cabin beam in a hanging manner; and installing the storage battery transition support on the left suspension support, installing the storage battery tray on the left suspension support, and installing the storage battery on the storage battery tray.
In a preferred embodiment of the invention, when the motor and the gearbox are maintained, the storage battery tray and the storage battery transition support are sequentially detached, and then the motor and the gearbox are detached from the front cabin beam.
In a preferred embodiment of the invention, there is no need to disassemble other components above the front deck beams.
The invention has the beneficial effects that: the invention has the advantages of simple structure, convenient installation and maintenance and light structure, and the disassembly and the assembly of the motor and the gearbox hung below the front cabin beam are not influenced by installing the transition bracket on the left suspension bracket of the power assembly and installing the motor controller, the vehicle-mounted charger, the air conditioner PTC and other parts above the front cabin beam; furthermore, the storage battery mounting and fixing structure can provide reliable fixing points for the storage battery, and the storage battery and the lower tray can be commonly used on other vehicle types.
Drawings
FIG. 1 is a schematic view of a battery mounting area of a battery fixing apparatus for an electric vehicle according to the present invention;
FIG. 2 is a schematic view of a powertrain mount of an electric vehicle battery mounting apparatus of the present invention;
FIG. 3 is a schematic view of a battery fixing scheme of the electric vehicle battery fixing device of the invention;
FIG. 4 is a schematic view of the left and right front longitudinal beams and the left and right suspension brackets of the battery fixing device of the electric vehicle of the present invention;
FIG. 5 is a schematic view of a battery mounting structure of the battery fixing device for an electric vehicle according to the present invention;
FIG. 6 is a schematic view of a fixing structure of a storage battery on a tray of the storage battery fixing device for an electric vehicle according to the present invention;
FIG. 7 is a schematic structural diagram of a bottom tray of a battery of the fixing device for a battery of an electric vehicle according to the present invention;
FIG. 8 is a schematic view of a battery transition bracket mounting structure of the battery fixing device for an electric vehicle according to the present invention;
FIG. 9 is a schematic structural view of a battery transition bracket of the battery fixing device for an electric vehicle according to the present invention;
FIG. 10 is a schematic diagram of a motor and transmission suspension scheme of a battery fixing device for an electric vehicle according to the present invention;
fig. 11 is a schematic view of a connection structure of a storage battery transition bracket and a suspension bracket of the storage battery fixing device for an electric vehicle.
Detailed Description
The invention will now be described in further detail, including the preferred embodiments, with reference to the accompanying drawings and by way of illustration of some alternative embodiments of the invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
The invention discloses a storage battery fixing device for an electric automobile, which comprises a left front longitudinal beam 11 and a right front longitudinal beam 12 of an automobile body, and is characterized in that: be connected with left suspension support 3 on the automobile body left side front longitudinal beam 11, be connected with right suspension support 4 on the automobile body right side front longitudinal beam 12, the lower extreme of left suspension support 3 and right suspension support 4 is connected with front deck crossbeam 2, the lower extreme of front deck crossbeam 2 hangs and is connected with the motor 5 and the gearbox 6 of integrated form, the upper end of front deck crossbeam 2 is connected with integrated generator box 8 and air conditioner PTC9, be connected with battery transition support 10 on the left suspension support 3, connect battery 7 through battery tray 13 on the battery transition support 10.
Preferably, the integrated electric motor 5 and gearbox 6 are connected to the front deck cross member 2 via a left suspension point 16 and a right suspension point 15, and the integrated electric motor 5 and gearbox 6 have a third suspension point connected to the subframe.
Preferably, the left suspension point 16 and the right suspension point 15 each include a connecting bolt arranged in a triangular structure, and the left suspension point 16 is located below the battery transition bracket 10.
Preferably, the storage battery tray 13 is in a box shape with an opening, a groove is arranged on a side edge 131 of one side of the storage battery tray 13, a pressing strip 132 is arranged on the other side of the storage battery tray 13, and four holes for connecting the storage battery transition support 10 are arranged at the bottom of the storage battery tray 13.
Preferably, the battery transition bracket 10 is in the shape of a box with an opening, and a first hole for connecting the battery tray 13 and a second hole for connecting the left suspension bracket 3 are formed in the battery transition bracket 10.
Preferably, a circular boss which is connected with the storage battery transition support 10 in a positioning mode is arranged on the left suspension support 3.
Preferably, the integrated power generation box 8 comprises a motor controller, a vehicle-mounted charger and DC \ DC.
The invention also discloses a general installation method of the storage battery fixing device of the electric automobile, and during installation, the front cabin beam 2 is connected with the integrated power generation box 8 and the air conditioner PTC 9; mounting the left suspension bracket 3 and the right suspension bracket 4 on a vehicle body left front longitudinal beam 11 and a vehicle body right front longitudinal beam 12 respectively; a motor 5 and a gearbox 6 are mounted below the front cabin beam 2 in a hanging manner; the battery transition bracket 10 is mounted to the left suspension bracket 3, the battery tray 13 is mounted to the left suspension bracket 3, and the battery 7 is mounted to the battery tray 13.
Preferably, when the motor and the gearbox are maintained, the storage battery 7, the storage battery tray 13 and the storage battery transition support 10 are sequentially detached, and then the motor 5 and the gearbox 6 are detached from the front cabin cross beam 2.
Preferably, no other parts above the front deck transverse beam 2 need to be disassembled.
Embodiments of the invention are further explained below with reference to the drawings in which:
as shown in fig. 1, the layout scheme of the front cabin of the electric vehicle is that the area shown in the drawing 1 is mainly provided with a motor, a gearbox, a motor controller, a vehicle-mounted charger, a DC \ DC, an air conditioning system and other parts. The battery is arranged on the left side of the front compartment.
As shown in FIG. 2, for the overall fixing scheme of the power assembly, the left end of the front cabin beam 2 is connected with the left front longitudinal beam of the vehicle body through a left suspension bracket 3, and the right end is connected with the right front longitudinal beam of the vehicle body through a right suspension bracket 4. The electric motor 5 is integrated with the gearbox 6 and is suspended below the front deck transverse beam 2 via a left suspension point 16 and a right suspension point 15. And an integrated power generation box 8 formed by a motor controller, a vehicle-mounted charger and DC/DC integration is arranged above the front cabin beam 2. The air conditioner PTC9 is mounted above the front deck cross member 2. The storage battery 7 is fixed on a storage battery tray 13 below the storage battery tray 13, the storage battery tray 13 is fixed on a storage battery transition support 10, the storage battery transition support 10 is fixed on a left suspension support 3, the left suspension support 3 is fixed on a left front longitudinal beam of a vehicle body, and the right suspension support 4 is fixed on a right front longitudinal beam of the vehicle body.
In general, the front deck cross member 2 is rigidly connected to the left and right front side members of the vehicle body by the left and right suspension brackets 3, 4, and the integrated generator box 8 and the air conditioner PTC9 are also rigidly fixed to the front deck cross member 2. The motor 5 and the gearbox 6 are integrated and then flexibly connected below the front cabin cross beam 2 through a left suspension point 16 and a right suspension point 15, and the other point in the three-point suspension extends backwards and is connected to the auxiliary frame. The vibration of the motor 5 and the gearbox 6 does not directly influence a motor controller, a vehicle-mounted charger, DC \ DC and an air conditioner PTC above the front cabin beam 2 any more. Furthermore, the accumulator 7 is rigidly connected to the left suspension bracket 3 via a transition bracket 10.
As shown in fig. 3, for the installation and fixation structure of the battery 7, the motor 5 and the gearbox 6 are hung below the front cabin beam 2, the front cabin beam 2 is rigidly connected to the left and right front longitudinal beams of the vehicle body through suspension brackets at both ends, wherein a battery transition bracket 10 is installed and fixed above the left suspension bracket 3, and the battery 7 is connected to the battery transition bracket 10 by means of a lower battery tray 13.
As shown in fig. 4, the left suspension bracket 3 is fixedly mounted to a left front side member 11 of the vehicle body, and the right suspension bracket 4 is fixedly mounted to a right front side member 12 of the vehicle body.
As shown in fig. 5, the left end of the front cabin beam 2 is connected with the left suspension support 3, the right end is connected with the right suspension support 4, the storage battery transition support 10 is connected above the left suspension support 3, the storage battery tray 13 is connected above the storage battery transition support 10, and the storage battery 7 is fixed above the storage battery tray 13.
As shown in FIG. 6, the battery 7 is fixed on the battery tray 13 by means of the clamping of the pressing strips to form an assembly, and the assembly can be shared by multiple types of vehicles to realize generalization.
As shown in fig. 7, the battery tray 13 has a groove at one side 131 and a bead 132 at the other side. The bottom of the battery tray 13 has four holes 133, 134, 135, 136 for fastening to the battery transition bracket 10. The installation and fixation mode of the storage battery is that a storage battery transition support is connected above the left suspension support, a storage battery tray is connected above the storage battery transition support, and the storage battery is fixed above the storage battery tray. The storage battery is fixed on the storage battery tray in a pressing strip clamping mode to form an assembly, and the assembly can be commonly used on multiple vehicle types to realize generalization.
As shown in fig. 8, the battery transition bracket 10 is fixed to the left suspension bracket 3. After the battery transition support 10 is installed, the three points 161, 162 and 163 connected between the left suspension point 16 integrated with the motor 5 and the gearbox 6 and the front cabin beam 2 are interfered by the battery transition support 10 when two points 161 and 162 are used for dismounting bolts or nuts, and the operation cannot be smoothly carried out. If battery tray and left suspension support lug connection, the centre does not set up the transition support, even then after the battery is dismantled together with the battery tray, three points of being connected between motor and the left suspension point of gearbox integration and the crossbeam, wherein will meet left suspension support's interference when having two point dismantlement bolts, can not go on smoothly. The motor controller, the vehicle-mounted charger, the DC/DC box and the air conditioner PTC are required to be firstly placed above the cross beam and disassembled, so that the maintenance is difficult.
As shown in fig. 9, the battery transition bracket 10 is a single structure after being detached. Is an aluminum casting, has high strength and light weight. The holes 101, 102, 103 and 104 at the four corners of the battery transition support 10 correspond to the four first holes 133, 134, 135 and 136 at the bottom of the battery tray 13. The bottom three second holes 105, 106, 107 of the battery transition bracket 10 are used for fastening to the left suspension bracket 3.
As shown in fig. 10, in order to achieve the left suspension bracket structure after the battery transition bracket 10 is detached, the front cross member 2 is connected to the left front side member 11 of the vehicle body via the left suspension bracket 3. The three points 161, 162 and 163 connected between the left suspension point 16 integrated with the motor 5 and the gearbox 6 and the front cabin beam 2 can be smoothly assembled and disassembled. Holes at four corners of the storage battery transition support are mounting points of four holes at the bottom of the storage battery tray. And three holes at the bottom of the storage battery transition bracket are used for being fixed on the left suspension bracket. The storage battery transition support is an aluminum casting as the left suspension support, and is high in strength and light in weight.
As shown in fig. 11, the connection structure between the battery transition bracket 10 and the left suspension bracket 3 is shown. The left suspension bracket 3 itself is an aluminum casting. If the two parts are combined into one part, the independent assembly and disassembly cannot be realized between the left suspension point 16 integrated with the motor 5 and the gearbox 6 and the front cabin beam 2, the motor 5 and the gearbox 6 are integrated and the front cabin beam 2 is firstly separated to be used as an assembly for assembly and disassembly, and the motor controller, the vehicle-mounted charger, the DC/DC integrated box 8 and the air conditioner PTC9 are firstly disassembled, so that great difficulty is caused to the maintenance of the vehicle during the use period.
It should be understood that the above-mentioned embodiments are merely exemplary of the present invention, and not restrictive, and that any modifications, combinations, substitutions, improvements, etc. made within the spirit and scope of the present invention are included in the present invention.
Claims (10)
1. The utility model provides an electric automobile battery fixing device, includes automobile body left front longitudinal beam (11) and automobile body right front longitudinal beam (12), its characterized in that: be connected with left suspension support (3) on automobile body left side front longitudinal beam (11), be connected with right suspension support (4) on the automobile body right front longitudinal beam (12), left side suspension support (3) with the lower extreme of right side suspension support (4) is connected with front deck crossbeam (2), the lower extreme of front deck crossbeam (2) hangs motor (5) and gearbox (6) that are connected with the integrated form, the upper end of front deck crossbeam (2) is connected with integrated generator box (8) and air conditioner PTC (9), be connected with battery transition support (10) on the left side suspension support (3), connect battery (7) through battery tray (13) on battery transition support (10).
2. The battery fixing device for the electric vehicle according to claim 1, wherein: the integrated motor (5) and the gearbox (6) are connected with the front cabin cross beam (2) through a left suspension point (16) and a right suspension point (15), and the integrated motor (5) and the third suspension point of the gearbox (6) are connected with the auxiliary frame.
3. The battery fixing device for the electric vehicle according to claim 2, wherein: left side suspension point (16) with right side suspension point (15) all include the connecting bolt that is the triangle-shaped structural arrangement, left side suspension point (16) are located battery transition support (10) below.
4. The battery fixing device for the electric vehicle according to claim 1, wherein: the storage battery tray (13) is in a box shape with an opening, a groove is formed in the side edge (131) of one side of the storage battery tray (13), a pressing strip (132) is arranged on the other side of the storage battery tray (13), and four holes used for being connected with the storage battery transition support (10) are formed in the bottom of the storage battery tray (13).
5. The battery fixing device for the electric vehicle according to claim 1, wherein: the storage battery transition support (10) is in a box shape with an opening, and a first hole for connecting the storage battery tray (13) and a second hole for connecting the left suspension support (3) are formed in the storage battery transition support (10).
6. The battery fixing device for the electric vehicle according to claim 1, wherein: and a circular boss which is connected with the storage battery transition support (10) in a positioning manner is arranged on the left suspension support (3).
7. The battery fixing device for the electric vehicle according to claim 1, wherein: the integrated power generation box (8) comprises a motor controller, a vehicle-mounted charger and a DC.
8. A general installation method of a storage battery fixing device of an electric automobile is characterized in that: when the integrated power generation box is installed, the integrated power generation box (8) and the air conditioner PTC (9) are connected to the front cabin beam (2); respectively installing a left suspension bracket (3) and a right suspension bracket (4) on a left front longitudinal beam (11) and a right front longitudinal beam (12) of a vehicle body; a motor (5) and a gearbox (6) are mounted below a front cabin beam (2) in a hanging mode; a storage battery transition support (10) is installed on the left suspension support (3), a storage battery tray (13) is installed on the left suspension support (3), and a storage battery (7) is installed on the storage battery tray (13).
9. The universal mounting method of the electric vehicle battery fixing device according to claim 8, characterized in that: when the motor and the gearbox are maintained, the storage battery (7), the storage battery tray (13) and the storage battery transition support (10) are sequentially detached, and then the motor (5) and the gearbox (6) are detached from the front cabin beam (2).
10. The universal mounting method of the electric vehicle battery fixing device according to claim 9, characterized in that: other parts above the front cabin cross beam (2) do not need to be disassembled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110078692.1A CN112721839B (en) | 2021-01-20 | 2021-01-20 | Electric automobile storage battery fixing device and universal installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110078692.1A CN112721839B (en) | 2021-01-20 | 2021-01-20 | Electric automobile storage battery fixing device and universal installation method |
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| CN112721839A true CN112721839A (en) | 2021-04-30 |
| CN112721839B CN112721839B (en) | 2023-03-24 |
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| Publication number | Publication date |
|---|---|
| CN112721839B (en) | 2023-03-24 |
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