Lead-acid accumulator and battery pack
A kind of lead-acid accumulator is the utility model is related to, more particularly to a kind of horizontal lead-acid accumulator and electricity for being easy to wiring
Lead-acid accumulator is the most important electrical source of power of current electric bicycle, and compared with lithium ion battery, it has valency
The advantages that lattice are low, security is good.Because single battery voltage and capacity are unable to reach the requirement of electric bicycle, typically need
The series connection of multiple batteries is assembled into battery pack, is placed on together in battery case.Under normal condition, battery is all uprightly to place
(pole plate is vertical), but for a long time using acid solution being caused to be layered, and cause battery malfunction, put battery there are some researches show sleeping
(pole plate is horizontal) can effectively solve the problem, improve battery.
, can either as CN102222803A discloses a kind of 12V high temperature cyclic elongated structure valve-controlled type sealed lead acids
Reached suitable for rack application and can and badly keep long circulation life down in high temperature power utilization environment, it sets altogether using 2V as a pole group
Put the pole groups of 6 series connection, the positive/negative plate in the group of pole it is horizontal it is sleeping put, 6 pole groups in the form of 1 × 6 in vertical direction
It is folded to set；Accumulator pole group is that lug diagonal is relative, and positive pole post terminal guiding, negative pole post terminal guiding are respectively in the front end of battery
Draw upper and lower part.
It is 100Ah and following horizontal lead-acid accumulator that and for example CN203967209U, which discloses a kind of 12V capacity, six poles
Group's mounting groove is horizontally disposed, and battery cap is vertically arranged and equal with cell jar Joint, several pole plates of each pole group
Horizontal superposition is set successively, and pole group corresponds installation extremely in group's mounting groove, and six remittances are provided between pole group and battery cap
Stream row, pole group, bus-bar and safety valve, which correspond, to be set, and bus-bar and each pole plate Joint, two lead-out terminals are set
In the top surface of battery cap, two poles are arranged on the lateral wall of battery cap.
As can be seen that traditional sleeping binding post for putting battery is located at the top surface of battery cover, because sleeping put just during use
It can be changed into the side of battery, and the battery case of electric bicycle is generally open top structure, causes sleeping electric discharge Chi electricity
Pond case back panel wiring is difficult, and leaves gap, causes internal cell to rock severity, influences battery life on the contrary.
Utility model content
The utility model provides a kind of horizontal lead-acid accumulator of easy-to-connect, solves the horizontal lead-acid accumulator of tradition
The battery case internal wiring difficulty the problem of.
Lead-acid accumulator, including cell body and middle cover, there is the pole of 6 word orders along its length in the cell body
Group, there is the pole through middle cover positioned at two pole groups most on side, two binding posts are fixed with the middle cover, it is described to connect
Line terminals include the first connecting portion of connecting post and the second connecting portion for connecting external wire, described two binding posts
Located at the side of middle cover in the width direction, and its second connecting portion is drawn from the side of middle cover, wherein a binding post and one
Pole is directly connected to, and another binding post is connected by patchcord with another pole.
The cell body is generally rectangular parallelepiped structure, and the single lattice of multiple splendid attire pole groups is provided with inside cell body.The utility model institute
State lead-acid accumulator and only refer to single lattice 1 × 6 structure of arrangement, do not arrange 2 × 3 structures including single lattice.The length direction just refers to put down
The direction of row cell body long side, the direction of the parallel cell body short side of width, same definition are applied to middle cover.
Because pole group arranges along cell body length direction, and two pole groups most on side just have the pole of connection binding post
Post, in order to allow two binding posts to be located at the side of middle cover in the width direction, one of binding post is allowed to be directly connected to wherein
One pole, and another terminal connects another pole by patchcord, changes the position of binding post.
Second connecting portion is drawn from the side of middle cover, and effect is that the side of middle cover can become the top surface of battery when in use,
Wiring can be facilitated.
Preferably, the binding post includes terminal body and connection sheet, and the middle cover is provided with the glue for being fixedly connected with piece
Groove and the locating slot coordinated with terminal body, the locating slot have opening in the middle cover side for drawing second connecting portion.
Preferably, the terminal body is cylindrical type, and end is provided with threaded connection hole.
Preferably, the opening is provided with the chromosphere being set in terminal body.
Preferably, flange is provided with the outside of the chromosphere, the locating slot inwall is provided with the caulking groove being engaged with the flange.
Preferably, isolated between the glue groove and locating slot by dividing plate, the connection sheet is provided with across the dividing plate
Preferably, the pole connection binding post, pole connection patchcord, patchcord connection binding post position
Corresponding middle hd top face is equipped with glue groove.
Preferably, the top surface of the middle cover is provided with the wiring groove of embedded patchcord.
Preferably, the second connecting portion is provided with the through hole of connection patchcord or pole.
Preferably, the protection cap of the whole middle hd top face of capping is included, the protection cap side has and binding post coordinates
Preferably, it is to be fastened and connected between the protection cap and middle cover.
Preferably, two sides of the cell body in the width direction have gradient, and the side, which has, compensates the gradient
Preferably, the middle cover is provided with the liquid injection hole that a row is correspondingly arranged with pole group, and the liquid injection hole is towards close to wiring
Deviate the center of pole group in the direction of terminal.
The utility model also provides a kind of battery pack, is composed in series by described lead-acid accumulator, in use, the pole group
To be horizontal positioned, the second connecting portion of binding post is drawn from the top surface of lead-acid accumulator, and adjacent battery is mutually close to, wiring
Terminal is connected by connector.
One of binding post is transferred to by the patchcord of the utility model lead-acid accumulator to be located at another binding post
The same side, and the connecting portion of binding post connection external wire is drawn from the side, is put when battery is sleeping in use, terminals
Son is in the top surface of battery, is easy to wiring.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model lead-acid accumulator.
Fig. 2 is the configuration schematic diagram of the utility model lead-acid accumulator.
Fig. 3 is the local structural representation of the utility model connecting terminal of lead acid storage battery.
Fig. 4 is that the utility model lead-acid accumulator removes the structural representation after protective cover.
Fig. 5 is the structural representation of cell body.
Fig. 6 is the dimensional structure diagram of middle cover.
Fig. 7 is the top surface structure schematic diagram of middle cover.
Fig. 8 is the A-A profiles of middle cover shown in Fig. 7.
Fig. 9 is the structural representation of binding post.
Figure 10 is the structural representation of protection cap.
Figure 11 is the profile of protection cap shown in Figure 10.
Figure 12 is the structural representation of the utility model batteries.
As shown in Figure 1-2, a kind of horizontal lead-acid accumulator, including cell body 1, middle cover 2 and protection cap 3, three parts composition structure
Into the battery case of rectangular parallelepiped structure.As shown in figure 5, the inside of cell body 1 has compartment, its inner chamber is separated into multiple single lattices 12,
There is the step 13 coordinated with middle cover close to the position of the oral area of cell body 1 so that the battery case surfaces after assembling are smooth.Because cell body is deep
Spend larger, two sides of cell body 1 in the width direction have the gradient of 0.3-0.5 degree, to compensate the gradient, two sides
Face has a plurality of diagonal bar 11.Diagonal bar 11 is set to be favorably improved cell body intensity, in addition when battery box locking develops face, between diagonal bar
Ventilating hole channel is formed, helps to radiate.
As shown in figure 5, the single lattice 12 in cell body arranges in the way of 6 × 1, pole group can be contained in each single lattice 12 (in figure
It is not shown).Pole group is typically made up of the positive plate, negative plate and dividing plate that are laminated, and bus-bar and pole are provided with the top of the group of pole.Assembling
During battery, by it is adjacent enter group bus-bar connect, so that all pole groups are together in series, the pole group on outermost both sides is respectively with one
Pole.Two poles can pass through the pole column hole 28 of middle cover 2 to be fastened on the binding post 4 on middle cover 2.
As shown in figure 4, being fixed with two binding posts 4 on middle cover 2, conventional batteries pole is directly connected to connect after passing through middle cover
Line terminals.But the utility model is not to use the design.One of binding post is directly connected to one of pole, another
Individual binding post passes through the connecting post of patchcord 5 so that two binding posts can be transferred to one of middle cover 2 in the width direction
Side.Connected mode between pole and binding post, pole and patchcord 5, binding post and patchcord is welding.From figure
It can also be clearly seen, each pad uses insulating cement environmental sealing.
In order to further appreciate that the assembly method of binding post, referring to Fig. 6-8, the top surface of middle cover 2 have three glue grooves 20,
21st, 22, glue groove 20,22 positions are respectively provided with pole column hole 28, and one of pole passes through meeting and binding post after pole column hole 28
It is directly connected to, another pole by patchcord 6 connects another binding post after passing through pole column hole.The dispensing in glue groove, it is possible to
All pads are wrapped up, in addition can also link terminal 4 and patchcord end.
As shown in figure 9, binding post 4 includes connection sheet 42 and terminal body 41, terminal body 41 is cylindrical structure, one
End is connected with connection sheet 42 by way of built-up welding, and the end face of the other end is provided with threaded connection hole 45, and the end of connection sheet 42 is set
There is the through hole 43 with pole or the cooperation of patchcord 5.
As shown in fig. 6, the close region of glue groove 21,22 is provided with the locating slot 23,24 coordinated with terminal body 41, locating slot
23rd, 24 sides of side where the binding post of middle cover 2 are provided with opening, and terminal body 41 is drawn from the opening, for being led with external
Line connects.As shown in figure 3, in order to indicate the polarity of binding post, chromosphere 6 is additionally provided with opening.In order to fix chromosphere 6, color
The outside of circle 6 is provided with flange, and corresponding locating slot inwall is provided with caulking groove 45.Chromosphere 6 is set in terminal body 41 during assembling, flange
It is caught in caulking groove 45.For the ease of installing binding post, limited block 211 is additionally provided with glue groove 21, avoids binding post from installing
Position shifts.Dividing plate is provided between glue groove and locating slot, both are separated, main purpose is in order to prevent glue from leaking.Phase
The connection sheet 42 for the binding post 4 answered is provided with the gap bridge 44 across the arch of the dividing plate.Binding post during in order to prevent installation
Shift, the limited block 211 for the piece 42 that is located by connecting is additionally provided with glue groove 21.
As shown in figure 8, the top surface of middle cover 2 is additionally provided with the wiring groove 29 of embedded patchcord 5, prevent patchcord 5 from hindering battery
Assembling.In addition, being provided with cover plate groove 26 in the centre position of middle cover 2, counterbore 261, the bottom surface projection of counterbore 261 are provided with cover plate groove 26
There is hole post 262, the center of hole post 262 is provided with liquid injection hole 263.The bottom surface of cover plate groove 26 is additionally provided with the ventilation for connecting each counterbore 261
Groove 264.The quantity of liquid injection hole is also individual to stay, and corresponds and sets with the single lattice 12 in cell body 1.Battery of the present utility model is
Horizontal type structure, liquid injection hole is not in alignment with the center of single lattice, but is offset to close to the direction of binding post 4.It is because every
Free electrolyte is more or less had in individual single lattice, being arranged such can avoid electrolyte to be flowed out from liquid injection hole as far as possible.Note
After liquid, safety valve can be installed on each top of hole post 262, then cover cover plate 7, cover plate 7 is typically fixed by ultrasonic bonding.
As shown in figs. 10-11, protection cap 3 mainly plays protective action, is again provided with middle cover 2 and the edge mate of protection cap 3
Ledge structure, projection 27 is provided with ledge structure, the side of projection 27 is provided with catching groove, the medial surface of corresponding protection cap 3
Provided with back-off 32.Escape groove 31 is provided with one of side of protection cap 3 in addition, escape groove 31 coordinates with locating slot 23,24
Surround terminal body 41 and chromosphere 6.
As shown in figure 12, a kind of battery pack, including four lead-acid accumulators being arranged side by side, adjacent lead-acid accumulator are tight
Stick together, and connected by connector 8, connector 8 is fixed by inserting the screw 9 of threaded connection hole 45, the battery pack
In use, the exit of binding post is the top surface positioned at battery, protection cap 3 is located at the side of battery so that pole group's level is put
Put, battery failure caused by acid solution layering can be avoided, improve service life, binding post is located at battery top surface in addition, also can
It is easy to wiring.