A kind of electromobile frame
Technical field
The invention belongs to vehicle technology fields, are related to a kind of electromobile frame, especially a kind of vehicle of electric bicycle
Frame.
Background technique
Traditional electromobile frame is all made of steel-tube construction welding assembly and is formed, for example, disclosed in Chinese patent literature it is electronic
Vehicle carriage【Application number 201521000053.X】Or a kind of two-wheeled mothers and sons electromobile frame【Application number 201420146511.X】
Deng.For traditional electromobile frame since the flexural strength of steel pipe itself is smaller, vehicle frame integral strength is lower, is unfavorable for electricity
The driving safety of motor-car;Since steel pipe is round tube, in order to install the accessory of electric vehicle on steel pipe type vehicle frame, need in steel pipe
Corresponding position welding has the installation sheet of mounting hole, then secures fitments to and realize installation on installation sheet, due to every installation sheet
It is required to be also required to weld between welding and steel pipe, causes the welding point pole of vehicle frame more, and the position of installation sheet is also required to guarantee
In place, therefore the welding sequence of entire vehicle frame is very many and diverse, causes the production efficiency of vehicle frame lower, and higher to labor claim,
Cost of labor is higher;It further, is to require to be directed to being adapted to different battery trucks since the area coverage of steel pipe is smaller
The vehicle frame of the battery truck design specialized of the type, that is, the versatility of the vehicle frame made of steel pipe are lower.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of electromobile frame is proposed, the present invention
The technical issues of solution is to increase the intensity of electromobile frame and promote versatility.
Object of the invention can be realized by the following technical scheme:
A kind of electromobile frame, including preceding standpipe, back rest frame and the bracket for connecting preceding standpipe and back rest frame, feature exists
In the bracket includes bottom bracket and the running-board bracket above bottom bracket, and the bottom bracket and running-board bracket are rushed by metal plate
Molded, the bottom bracket is elongated, and the lower end of the preceding standpipe passes through the front end of running-board bracket and supports with the front end of bottom bracket
It leans on, by being welded and fixed between the preceding standpipe and running-board bracket and preceding standpipe and bottom bracket, the back rest frame includes two pieces
By the stamping forming back side panel of metal plate, the back side panel includes vertical section and horizontal segment, the vertical section of two pieces of back side panels
It is located at the two sides of bottom bracket, is consolidated between the vertical section of two pieces of back side panels and the rear end of bottom bracket by elongated
Determine part to fix, at least one connector, the rear end of the running-board bracket and two pieces of rear sides are further fixed between two pieces of back side panels
The vertical section of plate is welded and fixed.
Two pieces of back side panels of bottom bracket, running-board bracket and composition back rest frame are by metal plate punch forming, punching press sheet metal component
The intensity of opposite steel-tube construction is higher, the electric bicycle being made of the stamping forming bottom bracket of metal plate, running-board bracket and back rest frame
Frame structural strength is higher, more stable, thus the electric vehicle traveling made is safer, and electric vehicle is less susceptible to deformation pair when hitting
Bicyclist damages, safer;Stamping forming bottom bracket, running-board bracket and back rest frame can scale of mass production, to reduce
Production cost, thus the cost of electromobile frame is lower;Stamping forming bottom bracket, running-board bracket and back side panel can once at
Type, it is only necessary to the fixed assembling between all parts constitutes vehicle frame, therefore the tie point on electromobile frame is relatively fewer,
The difficulty for reducing assembling improves the efficiency of assembling;The area of stamping forming bottom bracket, running-board bracket and back side panel compared with
Greatly, therefore mounting hole can be opened up on different location, can be opened according to the design requirement of the electric vehicle of different model in different location
If mounting hole installs the components of electric vehicle, that is, the electromobile frame of above structure can be adapted to the electronic of various structures
Vehicle, versatility is high, reduces the development cost of vehicle frame.
In above-mentioned electromobile frame, it is additionally provided with tail-bracket between the vertical section and fixing piece of the back rest frame, it is described
Tail-bracket is by metal plate punch forming, and the two sides of the tail-bracket all have the fixation flange being turned over downwards, the fixing piece
Both ends are each passed through the fixation flange of tail-bracket two sides and are welded and fixed, and the vertical section of two pieces of back side panels both passes through tail-bracket
And it is welded and fixed with fixing piece.Using the stamping forming tail-bracket of metal plate intensity height itself, the welding of tail-bracket and fixing piece
Three-legged structure is formed between point, the pad of tail-bracket and vertical section and vertical section and the pad of fixing piece, passes through increase
The upper section that tail-bracket can be located at fixing piece to vertical section forms support, while it is strong to increase the fixation between vertical section and fixing piece
Degree, guarantees the stability of vehicle frame, while tail-bracket is also used to support storage battery.
In above-mentioned electromobile frame, the front end of the tail-bracket is located at the lower section of running-board bracket and is bonded weldering with running-board bracket
Connect fixation.Tail-bracket and running-board bracket are directly fixed, increase being directly connected to for tail-bracket and running-board bracket, and tail-bracket and running-board bracket
It is fixed with back rest frame, further improves the globality of electromobile frame by way of directly fixed and indirectly fixed, from
And making the integral strength of electromobile frame higher, structure is more firm.
In above-mentioned electromobile frame, equal punch forming has reinforcement convex in the vertical section and horizontal segment of the back side panel
Muscle.The structure can increase the flexural strength of back side panel, promote the integral strength of back rest frame.
In above-mentioned electromobile frame, the edge of the back side panel all has the reinforcement flange one turned down outward, described
The middle part of tail-bracket has through-hole, and the through-hole all has two fixed bayonets one, the rear side close to the edge of fixed flange
Two reinforcement flange one that plate passes through on through-hole and back side panel are each passed through two fixed bayonets and weld together.By reinforcing flange
One is caught in fixed bayonet one to further strengthen tail-bracket and back side panel in bonding strength in the front-back direction and increase welding position simultaneously,
Improve weld strength;The installation site of tail-bracket and back rest frame can quickly be positioned during installation simultaneously, promote packaging efficiency.
In above-mentioned electromobile frame, positioned at the edge of through-hole there is the support bent downward to turn on the tail-bracket
Side, has the extension being located at immediately below support flange in the vertical section, the lower end of the support flange and extension against
And it is welded and fixed.By supporting flange that can support to tail-bracket, so as to more stable support storage battery.
In above-mentioned electromobile frame, there is the supporting board bent downward, institute at front end on the running-board bracket
The lower end for stating supporting board is resisted against on bottom bracket and is welded and fixed with bottom bracket.Supporting board is bent to form by punching press, branch
Fagging portion can support running-board bracket, avoid running-board bracket and the weld stress of preceding standpipe from crossing major rupture, increase intensity;Further
, when colliding, supporting board can increase the intensity of running-board bracket and bottom bracket at front end, avoid running-board bracket and subiculum
The front end of frame is bent, and promotes the crashworthiness hit intensity of vehicle frame.
In above-mentioned electromobile frame, the rear end of the running-board bracket has two extensions for being located at running-board bracket two sides
Section, the inside of the extended segment, which is equipped with, fixes bayonet two, in the end of the extended segment and a reinforcement flange one of back side panel
Side reclines, another described reinforcement flange one passes through fixed bayonet two.Fixed bayonet two is caught in by reinforcing flange one come into one
Step reinforces running-board bracket and back side panel in bonding strength in the front-back direction, while increasing welding position, improves weld strength;Energy simultaneously
The installation site for quickly positioning running-board bracket and back rest frame during installation, promotes packaging efficiency.
In above-mentioned electromobile frame, fixed notch is additionally provided on the inside of the extended segment, adding in the vertical section
Strong convex ribs outwardly protrude, and in the reinforcement convex ribs insertion fixed notch and weld.The structure can further promote extended segment and erect
In bonding strength in the front-back direction between straight section, while increasing welding position, improves weld strength.
In above-mentioned electromobile frame, the section of the bottom bracket is in U-typed, and the front end of the bottom bracket has in circle
The both ends of the circular arc flange of arc, the circular arc flange connect with the two sidewalls of bottom bracket, the circular arc flange and bottom bracket it
Between form positioning recess, the lower end of the preceding standpipe is plugged in positioning recess and is welded and fixed.The bottom bracket of the structure itself
Flexural strength is big;It is welded again after simultaneously being entangled the lower end of preceding standpipe by positioning recess structure, the lower end of preceding standpipe and circle
The two sidewalls of arc flange and bottom bracket recline, and contact area is big, and energy dissipation of ferees reduces the pressure at solder joint, under promotion
Bonding strength between bracket and preceding standpipe, to ensure the stability of entire vehicle frame;Positioning recess structure energy when welding again
The preceding standpipe made welds again after quickly positioning to installation site, promotes welding efficiency and welding quality.
In above-mentioned electromobile frame, the edge of the two sidewalls of the bottom bracket all has the reinforcement flange turned down outward
Two.The structure can further increase the bending strength of bottom bracket.
In above-mentioned electromobile frame, the fixing piece be placed through the two sidewalls of the bottom bracket rear end and be located at
The two sidewalls of bottom bracket rear end are welded and fixed.Circular hole or semicircle orifice are provided on the two sidewalls of bottom bracket rear end, it is fixed
Part passes through circular hole or semicircle orifice, and welding forms solder joint between fixing piece and the two sidewalls of bottom bracket rear end, which can guarantee
Fixing intensity between fixing piece and bottom bracket promotes the stability of entire vehicle frame, at the same also facilitate fixing piece and bottom bracket it
Between welding positioning, electromobile frame welding assembly is more convenient.
In above-mentioned electromobile frame, the bottom wall of the bottom bracket rear end has the circular arc support portion being folded upward at, described
Circular arc support portion can encase fixing piece and fix with fixing piece.Circular arc support portion can encase the lower circumferential surface of fixing piece, increase bottom bracket with
Contact area between fixing piece, welding forms solder joint between circular arc support portion and fixing piece, further increases fixing piece and bottom bracket
Between fixing intensity, further promote the stability of entire vehicle frame.
In above-mentioned electromobile frame, the connector is respectively to be located between the horizontal segment of two pieces of back side panels to connect
Fitting one and the connector two between the vertical section of two pieces of back side panels, the connector one and connector two are by gold
Belong to plate punch forming.The stamping forming connector one of metal plate and two self-strength of connector are high, after capable of firmly connecting two pieces
Side plate guarantees back rest frame self-strength;Connector one and connector two can also be mounted directly electric vehicle components simultaneously, promote electricity
The versatility of motor-car.
Compared with prior art, this electromobile frame has structural strength high and stablizes, the high advantage of vehicle frame versatility;Together
When in electromobile frame assembling, solder joint is less and bond pad locations are fixed, it can be achieved that by way of welding manipulator automatic welding
It carries out, there are vehicle frame production and assembly to be more convenient, the lower advantage of cost.
Detailed description of the invention
Fig. 1 is the side structure schematic view of this electromobile frame.
Fig. 2 is the schematic perspective view of this electromobile frame.
Fig. 3 is the schematic perspective view at another visual angle of this electromobile frame.
Fig. 4 is the enlarged structure schematic diagram in the portion A in Fig. 1.
Fig. 5 is the schematic perspective view of bottom bracket in this electromobile frame.
Fig. 6 is the schematic perspective view of back rest frame in this electromobile frame.
Fig. 7 is the overlooking structure diagram of running-board bracket in this electromobile frame.
Fig. 8 is the schematic perspective view of tail-bracket in this electromobile frame.
In figure, 1, preceding standpipe;2, back rest frame;21, back side panel;21a, vertical section;211, extension;21b, horizontal segment;22,
Reinforce convex ribs;23, reinforce flange one;3, bottom bracket;31, circular arc flange;311, positioning recess;32, reinforce flange two;33, circle
Arc support portion;34, fixed gap;4, running-board bracket;41, lightening hole;42, extended segment;421, fixed bayonet two;422, fixed notch;
43, supporting board;5, fixing piece;6, tail-bracket;61, fixed flange;62, through-hole;63, fixed bayonet one;64, flange is supported;
7, connector one;71, connector two;8, installing pipe.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figures 1 to 8, standpipe 1 and back rest frame 2 before electromobile frame includes preceding standpipe 1, back rest frame 2 and connects
Bracket, bracket includes bottom bracket 3 and the running-board bracket 4 above bottom bracket 3, offers lightening hole 41 on running-board bracket 4;It is preceding vertical
The lower end of pipe 1 pass through the front end of running-board bracket 4 and with the front end of bottom bracket 3 against, preceding standpipe 1 and running-board bracket 4 and preceding standpipe 1 with
By being welded and fixed between bottom bracket 3, there is the supporting board 43 bent downward, support plate at front end on running-board bracket 4
The lower end in portion 43 is resisted against on bottom bracket 3 and is welded and fixed with bottom bracket 3;Back rest frame 2 includes two pieces by metal plate punch forming
Back side panel 21, equal punch forming, which has, on the vertical section 21a and horizontal segment 21b of back side panel 21 reinforces convex ribs 22, two pieces of back side panels
At least one connector is further fixed between 21;It is additionally provided with tail-bracket 6 between the vertical section 21a and fixing piece 5 of back rest frame 2, after
The two sides of bracket 6 all have the fixation flange 61 being turned over downwards, and the front end of tail-bracket 6 is located at the lower section of running-board bracket 4 and and pedal
The fitting of frame 4 is welded and fixed.
Bottom bracket 3,4, two pieces of back side panels 21 of running-board bracket, tail-bracket 6 and connector are by metal plate punch forming, specifically
For bottom bracket 3,4, two pieces of back side panels 21 of running-board bracket, tail-bracket 6 and connector be all made of cold-reduced sheet punch forming, as excellent
Choosing:The model DC05 or DC06 of cold-reduced sheet, bottom bracket 3, running-board bracket 4, two pieces of back side panels 21, tail-brackets 6 after punch forming
And connector with a thickness of 1.35mm~1.8mm.
As shown in Figures 2 and 3, the vertical section 21a of two pieces of back side panels 21 of back rest frame 2 is located at the two sides of bottom bracket 3,
It is worn on the two sidewalls of 3 rear end of bottom bracket and is welded with fixing piece 5, fixing piece 5 is fixing pipe, and the both ends of fixing piece 5 are distinguished
Across 6 two sides of tail-bracket fixation flange 61 and be welded and fixed, the vertical section 21a of two pieces of back side panels 21 both passes through tail-bracket 6 simultaneously
It is welded and fixed with fixing piece 5, the rear end of running-board bracket 4 and the vertical section 21a of two pieces of back side panels 21 are welded and fixed.
As shown in figure 4, bottom bracket 3 is elongated, the section of bottom bracket 3 is in U-typed, the edge of the two sidewalls of bottom bracket 3
The reinforcement flange 2 32 turned down outward is all had, the front end of bottom bracket 3 has the circular arc flange 31 being arc-shaped, circular arc flange 31
Both ends connect with the two sidewalls of bottom bracket 3, between circular arc flange 31 and bottom bracket 3 formed positioning recess 311, preceding standpipe 1
Lower end is plugged in positioning recess 311 and is welded and fixed with circular arc flange 31, and the bottom wall of 3 rear end of bottom bracket, which has, to be folded upward at
Circular arc support portion 33, circular arc support portion 33 can encase fixing piece 5 and fix with fixing piece 5.
As shown in Fig. 7 and Fig. 5, the edge of back side panel 21 all has the reinforcement flange 1 turned down outward, in tail-bracket 6
Portion has through-hole 62, and through-hole 62 all has two fixed bayonets 1 close to the edge of fixed flange 61, and back side panel 21 passes through logical
Two reinforcement flange 1 on hole 62 and back side panel 21 are each passed through two fixed bayonets 1 and weld.Tail-bracket 6 is upper
There is the support flange 64 bent downward in the edge of through-hole 62, have on vertical section 21a and be located at immediately below support flange 64
Extension 211, support lower end and the extension 211 of flange 64 against and be welded and fixed.
As shown in Figure 3 and Figure 6, the rear end of running-board bracket 4 has two extended segments 42 for being located at 4 two sides of running-board bracket, prolongs
The inside for stretching section 42 is equipped with fixed bayonet 2 421, and the edge of back side panel 21 all has the reinforcement flange 1 turned down outward, extends
The end of section 42 and one 23 inside of a reinforcement flange of back side panel 21 recline, another is reinforced flange 1 and passes through fixed bayonet
2 421.The inside of extended segment 42 is additionally provided with fixed notch 422, and the reinforcement convex ribs 22 on vertical section 21a outwardly protrude, and reinforces convex
Muscle 22 is embedded in fixed notch 422 and welds.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 5, connector is respectively to be located between the horizontal segment 21b of two pieces of back side panels 21 to connect
Fitting 1 and the connector 2 71 between the vertical section 21a of two pieces of back side panels 21, connector 1 and connector 2 71 are equal
By metal plate punch forming.The stamping forming connector 1 of metal plate and 2 71 self-strength of connector are high, can firmly connect
Two pieces of back side panels 21 guarantee 2 self-strength of back rest frame;Connector 1 and connector 2 71 can also be mounted directly electric vehicle simultaneously
Components promote the versatility of electric vehicle.
There are two the tools of connector 1, and two connectors 1 are separately fixed between the middle section of two sections of horizontal segment 21b and two
Between the end of section horizontal segment 21b, it is at least three sections that two connectors 1, which bends, and two sections of two connectors 1 are with two
Section horizontal segment 21b is welded and fixed.Connector 2 71 is fixed on two sections of vertical section 21a between upper end, and the two of connector 2 71
End is welded and fixed with two sections of vertical section 21a respectively, and connector 2 71 is arc-shaped to front curve.It is opened up on connector 2 71 useful
In the mounting hole of installation cushion;Connector 2 71 both can increase the bonding strength between two sections of upper ends vertical section 21a, while also can
Pedestal as the installation of battery truck components.Fixing piece 5 is fixing pipe.Bottom bracket 3 is obliquely installed, and the front end of bottom bracket 3 is downward
It is arranged, the two sidewalls on bottom bracket 3 close to rear end all have fixed gap 34, are fixed in fixed gap 34 for installing pedal
The installing pipe 8 of shaft, inclined bottom bracket 3 make the liftoff position in the position of installing pipe 8 higher, so that foot pedal has rotation empty
Between.
It is also fixed by fixed pin between the fixation flange 61 of tail-bracket 6 and the extension 211 of corresponding vertical section 21a.Gu
Rationed marketing is used to connect the damper of electric vehicle, and fixed pin passes through the fixation flange 61 of tail-bracket 6 and corresponds to vertical section 21a and pass through
It is welded and fixed, therefore is connected between the fixed pin tail-bracket 6 that can also make and vertical section 21a stronger.
Two pieces of back side panels 21 of bottom bracket 3, running-board bracket 4 and composition back rest frame 2 are by metal plate punch forming, punching press metal plate
Golden part is higher with respect to the intensity of steel-tube construction, the electricity being made of the stamping forming bottom bracket 3 of metal plate, running-board bracket 4 and back rest frame 2
Motor-car body frame structure for automotive intensity is higher, more stable, thus the electric vehicle traveling made is safer;Stamping forming bottom bracket 3, running-board bracket
4 and back rest frame 2 can scale of mass production, to reduce production cost, thus the cost of electromobile frame is lower;It is stamping forming
Bottom bracket 3, running-board bracket 4 and back side panel 21 can one-pass moldings, it is only necessary to which the fixed assembling between all parts constitutes vehicle
Frame, therefore the tie point on electromobile frame is relatively fewer, reduces the difficulty of assembling, improves the efficiency of assembling;It strikes out
The area of the bottom bracket 3 of type, running-board bracket 4 and back side panel 21 is larger, therefore mounting hole can be opened up on different location, can basis
The design requirement of the electric vehicle of different model opens up mounting hole in different location to install the components of electric vehicle, that is, above-mentioned
The electromobile frame of structure can be adapted to the electric vehicle of various structures, and versatility is high, reduce the development cost of vehicle frame.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.