CN202144195U

CN202144195U - Bicycle type wheel hub battery pack

Info

Publication number: CN202144195U
Application number: CN201120261787U
Authority: CN
Inventors: 刘晓冬; 柯寒冬
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-07-22
Filing date: 2011-07-22
Publication date: 2012-02-15
Anticipated expiration: 2021-07-22

Abstract

The utility model relates to a bicycle type wheel hub battery pack, comprising a battery pack disposed in a wheel hub and comprising a plurality of lithium battery units, a support disposed at two sides of the battery pack, a connecting sheet connected with the battery pack, a protective plate disposed in the support, and a disc insulating casing disposed at the external of the supports, the side wall of the insulating casing is provided with an axial protruding bar protruding inward and tabling with an axial groove disposed at the external edge of the supports. The bicycle type wheel hub battery pack is advantaged by compact structure, long service lifetime, as well as high stability and high safety.

Description

Vehicle wheel hub power brick voluntarily

Technical field

The utility model relates to a kind of wheel hub of vehicle voluntarily power brick.

Background technology

Electrical Bicycle be with battery as auxiliary power, can realize that manpower is ridden, the extraordinary bicycle of electronic or electric power-assist function.Because of it has advantages light, energy-saving and environmental protection, received people's welcome, become growth in recent years main force's vehicle the most rapidly.Electrical Bicycle is made up of several big parts such as vehicle frame, motor, battery, controllers, and wherein battery is the power resources of Electrical Bicycle.

As everyone knows, lithium ion battery is widely applied at all kinds of digital products such as mobile phone, computer owing to have advantages such as in light weight, that volume is little, capacitance is big, charging rate is fast.The a plurality of battery units combinations of needs when lithium ion battery being used for high capacity, the high-tension vehicle such as Electrical Bicycle need be considered the problem in battery pack safety and service life.The design of battery installation site directly influences the profile and the performance of car load, even influences the service life of battery.The conventional battery mounting means mainly contains: before placing vehicle frame, be put under the seat, be arranged under the stretcher or the like, above mounting means exist take up room big, not attractive in appearance, shortcomings such as battery service life is short.

Patent CN101882692A discloses a kind of hub built-in battery bag, comprises cylindrical lithium electricity power brick and fender, and cylindrical lithium electricity power brick comprises battery, nickel sheet and two snap gauges that are used for fixing battery; This cylindrical lithium electricity power brick design has solved the shortcoming that battery is in the past installed, and its outward appearance is relatively more novel, it is less to take up room, and the installation site is also more hidden; But should (use the epoxy plate insulation in the fender outside by design battery structure self; The part battery is still exposed) can not insulate preferably, safety is relatively poor, because of battery component can expand after discharging and recharging in heating; And this structure is only leaned on the snap gauge stationary battery; Have antivibration moment ability, the problem that the battery steadiness is bad causes power brick to reduce service life.

Along with the concern of various countries to the exploitation of Electrical Bicycle correlation technique; Develop a kind of not only outward appearance novel, take up room little; And safe, the electric bicycle battery bag of battery long service life, the economic value of its generation and social value are with inestimable.

The utility model content

The purpose of the utility model is not enough to battery pack protection in order to solve in the prior art, and the problem that steadiness is relatively poor provides a kind of compact conformation, long service life that is built in the wheel hub, the wheel hub of the vehicle voluntarily power brick of high stability and high security.

The above-mentioned technical purpose of the utility model is achieved through following technical scheme: vehicle wheel hub power brick voluntarily; Comprise and be located at the battery pack of forming by a plurality of lithium cells in the wheel hub; It is characterized in that: the said wheel hub of vehicle voluntarily power brick also comprises the support of being located at the battery pack both sides; With battery pack bonded assembly connecting strap, be located at the fender in the support, be located at the outer plate-like insulated shell of support; Said insulated shell sidewall is provided with to projecting inward axial raised line; Said support outward flange is provided with axial notch; Said groove and said raised line are chimeric.

Said insulated shell is made up of left shell and right shell, is provided with screw in the raised line of said left shell and/or right shell, and said left shell passes said screw with right shell through screw and is connected.

Said left shell and/or right shell inside are provided with from the inwardly protruded spud pile of trying to get to the heart of a matter.Preferred as the utility model, said left shell and right shell are equipped with spud pile and pass the fixed orifice of being located in the said spud pile through screw fastening, thus further fixing left shell and right shell avoid it to misplace because of strenuous vibration, and then damage battery pack.

Said fender outward flange is provided with the breach chimeric with said spud pile, makes that fender can be fixed radially, and said spud pile is provided with spring washer, further avoids fender in axial moving.

Preferred as the utility model; Said left shell and right shell center are provided with the centre hole that supplies the cycle hub axis to pass, and centre hole one side of said left shell or right shell also is provided with the fender fairlead, make that lead-in wire is safe and reliable; Can not receive the influence of external force, thus the safety of the battery of guaranteeing.

Further preferred as the utility model, said fender is made up of the three-layer protection sheet, can effectively protect battery pack super-charge super-discharge overcurrent.

Said internal stent is provided with the knock hole consistent with the battery pack arrangement mode; This knock hole is used to place lithium cells; Its quantity is identical with lithium cells quantity; Adjacent positioned has certain thickness between the hole, makes to help the battery pack heat radiation by the certain distance that is spaced between the battery unit in each knock hole.Said knock hole one side is provided with catch, can prevent lithium cells at axial motion and fall, thereby reaches the purpose of stationary battery group.

The outstanding advantage and the beneficial effect of the utility model are:

1, the utility model uses support stationary battery group; Use insulated shell and support chimeric again, guaranteed the firm of support, be provided with knock hole in the support; Can be according to the quantity and the arrangement mode design of battery unit, this knock hole makes that battery pack is firm and has improved its heat dispersion;

2, the left and right shell of insulated shell is through the fixed orifice double fixed in screw in the raised line of lateral wall and the inner many spud piles; Further improved the stability of battery pack; And insulated shell also has waterproof, insulation function and battery pack has effectively been protected in the fairlead design; Improve its safety, can prolong the service life of power brick;

3, the coupling of many spud piles of left and right shell of insulated shell and fender breach and the setting of spud pile spring washer can be guaranteed the axial and steadiness radially of fender, have improved its anti-vibration resistance;

5, the utility model battery pack, support, connecting strap, fender and insulated shell become one structure, compact conformation, and it is little to take up room, and is built in the wheel hub, easy to use and attractive in appearance, is difficult for stolen.

Description of drawings

Fig. 1 is the utility model embodiment integral structure exploded drawings.

Fig. 2 a, 2b are the utility model embodiment left side shell, right shell structure scheme drawing.

Fig. 3 is the utility model embodiment fender structural representation.

Fig. 4 is the utility model embodiment supporting structure scheme drawing.

Among the figure, A is a wheel hub, and B is a battery pack, and 1 is support, and 11 is groove, and 12 is knock hole; 13 is catch, and 21 is raised line, and 22 is left shell, and 23 is right shell, and 24 is spud pile, and 25 is fairlead; 26 is centre hole, 3 connecting straps, and 4 is fender, and 41 is screening glass, and 42 is breach, and 5 is screw.

The specific embodiment

Below in conjunction with embodiment the utility model is done further explain.

The 18650 type battery pack B that use 18650 type lithium cells to form with ten and ten string modes are example; As shown in Figure 1, vehicle wheel hub power brick comprises and is located at the battery pack B that is made up of 30 18650 type lithium cells in the wheel hub A voluntarily; Be symmetrically set in the support 1 of battery pack B both sides; With battery pack B bonded assembly connecting strap 3, be located at the fender 4 in the support 1, be located at the plate-like insulated shell outside the support 1; Insulated shell is made up of with right shell 23 left shell 22, and both are fixing through screw 5.

Like Fig. 2 a, shown in the 2b, be respectively left shell 22 and right shell 23, both pass the screw that is provided with in the set six roots of sensation raised line 21 of sidewall through screw 5 and the fixed orifice be located at from 4 spud piles 24 of inwardly protruding of trying to get to the heart of a matter connects.Left and right shell has all carried out fastening from inside to outside, has effectively prevented to draw the dislocation that concuss causes left shell 22 and right shell 23, thereby has strengthened the stability of battery.Left side shell 22 is provided with the centre hole 26 that supplies the cycle hub axis to pass with right shell 23 centers, and centre hole 26 1 sides of right shell also are provided with fairlead 25, can make lead-in wire safety, not influenced by external force.Left side shell 22 also has insulation, water-proof function with right shell 23, has farthest improved the stability and the safety of power brick, thereby prolongs the service life of power brick.

As shown in Figure 3; Fender 4 is made up of three-layer protection sheet 41; Every layer of screening glass 41 outward flange are provided with the breach 42 chimeric with spud pile 24, make fender 4 can be fixed on the spud pile 24, and spud pile 24 is provided with spring washer (indicating among the figure); Can avoid fender 4 in axial skew, thus the safety that has improved battery pack B.

As shown in Figure 4, for being positioned at the support that is provided with centre hole 1 of battery pack B one side, the support 1 of battery pack B both sides is and is symmetrical set among the figure, and structure is identical, is convenient to adopt the Mould Machining manufacturing.Support 1 adopts ten and ten strings identical with battery unit combination mode to arrange by two circle holes 12 and forms; Battery unit places knock hole 12, and the certain distance that is spaced between the battery unit in each knock hole 12 helps the heat radiation of battery pack B; Knock hole 12 is provided with catch 13; Can prevent battery unit at axial motion, thereby reach the purpose of stationary battery unit, support 1 outward flange is provided with 6 axial notches 11; In order to insulated shell in six roots of sensation raised line 21 chimeric, make that support 1 is fixed.

During assembling, earlier lithium cells is formed battery pack B with ten and ten string modes, again battery pack B is inserted in the knock hole 12 of support 1; Be affixed on support 1 lateral surface to connecting strap 3 then and be connected, put into fender 4 again with battery pack B, left shell 22 is chimeric with support 1 with right shell 23; Make that support 1 is fixed, simultaneously fender 4 also because of left shell 22 and right shell 23 from try to get to the heart of a matter 4 spud piles 24 of inwardly protruding and on the spring washer (not shown) fixed, pass the raised line 21 and the spud pile 24 of left shell 22 and right shell 23 sidewalls more respectively with screw 5; Make left shell 22 and right shell 23 fix, promptly obtain the utility model vehicle wheel hub power brick voluntarily, this power brick compact overall structure; It is little to take up room, and power brick is built in the wheel hub A, compact overall structure; Easy to install and attractive in appearance, be difficult for stolen.

This specific embodiment only is the explanation to the utility model; It is not the restriction to the utility model; Those skilled in the art can make any modification to present embodiment as required after reading this specification sheets, but as long as in the claim scope of the utility model, all receive the protection of patent law.

Claims

1. vehicle wheel hub power brick voluntarily; Comprise and be located at the battery pack of forming by a plurality of lithium cells in the wheel hub (A) (B); It is characterized in that: the said wheel hub of vehicle voluntarily power brick also comprises the support (1) of being located at battery pack (B) both sides; With battery pack (B) bonded assembly connecting strap (3), be located at the fender (4) in the support (1), be located at the outer plate-like insulated shell of support (1); Said insulated shell sidewall is provided with to projecting inward axial raised line (21); Said support (1) outward flange is provided with axial notch (11); Said groove (11) is chimeric with said raised line (21).

2. the wheel hub of vehicle voluntarily power brick according to claim 1; It is characterized in that: said insulated shell is made up of left shell (22) and right shell (23); Be provided with screw in the raised line (21) of said left shell (22) and/or right shell (23), said left shell (22) passes said screw with right shell (23) through screw (5) and is connected.

3. the wheel hub of vehicle voluntarily power brick according to claim 2 is characterized in that: said left shell (22) and/or right shell (23) inside are provided with from the inwardly protruded spud pile (24) of trying to get to the heart of a matter.

4. the wheel hub of vehicle voluntarily power brick according to claim 3, it is characterized in that: said spud pile (24) is provided with spring washer.

5. the wheel hub of vehicle voluntarily power brick according to claim 4 is characterized in that: said fender (4) outward flange is provided with the breach (42) chimeric with said spud pile (24).

6. the wheel hub of vehicle voluntarily power brick according to claim 5 is characterized in that: said left shell (22) and right shell (23) center are provided with the centre hole (26) that supplies cycle hub (A) axis to pass.

7. the wheel hub of vehicle voluntarily power brick according to claim 6 is characterized in that: centre hole (26) one sides of said left shell (22) or right shell (23) also are provided with fairlead (25).

8. the wheel hub of vehicle voluntarily power brick according to claim 3 is characterized in that: said left shell (22) and right shell (23) are equipped with spud pile (24) and pass the fixed orifice of being located in the said spud pile (24) through screw (5) fastening.

9. according to the arbitrary described wheel hub of the vehicle voluntarily power brick of claim 1-8, it is characterized in that: said fender (4) is made up of three-layer protection sheet (41).

10. the wheel hub of vehicle voluntarily power brick according to claim 9 is characterized in that: said support (1) inside is provided with the knock hole (12) consistent with battery pack (B) arrangement mode, and said knock hole (12) one sides are provided with catch (13).