CN201052744Y - Power battery device convenient for changing mounting orientation - Google Patents

Abstract

The utility model relates to an electrokinetic battery device whose installing orientation can be conveniently changed, which comprises a battery device main body (1), and suspension components arranged on the back of the battery device main body (1). The suspension components comprise a retaining bracket (2) firmly fixed with a frame, a joint bracket (3) connected with the retaining bracket (2) and the battery device main body (1), and a locking device (5) installed on the battery device main body (1) of the joint bracket (3). A retaining bracket linking section (31) detachably connected with the retaining bracket (2) and a plug-board portion (32) of the battery installment main body connected with the battery installment main body (1) are arranged on the joint bracket (3). The installing orientation of the battery device main body can be changed through changing a firmly connected orientation of the retaining bracket (2) on the frame. The electrokinetic battery device of the utility model can change installment direction and the position conveniently according to demands and can be used widely on power devices of electrical bicycles.

Description

The power battery pack device that is convenient to change the installation position

technical field

The utility model relates to a power supply device, in particular to an installation structure of a battery pack device providing power for an electric bicycle.

Background technique

Most of the power battery packs of existing electric bicycles are installed on the front beam of the bicycle or the rear standpipe of the vehicle frame. For example, some are obliquely fixed on the rear standpipe of the vehicle frame. After the power battery is assembled, the battery pack and the box-type device are fixedly connected together with screws from the bottom of the box-type device; Finally, fix the battery pack with screws from the bottom of the frame. The above installation structure of the battery pack limits the installation position of the battery pack, so that it can only be installed on a fixed position of the vehicle frame such as the rear riser, and the installation of the battery pack at this position not only takes up the limited space between the vehicle frames, but also increases the It is inconvenient for car users to get on and off the car, and it is also inconvenient to disassemble the battery pack. In addition, there is no lock provided on the existing battery pack installation structure, and the battery pack is easy to be stolen.

Utility model content

The technical problem to be solved by the utility model is to provide a power battery pack device that can be installed in multiple positions on the vehicle frame and conveniently change the installation orientation.

The technical solution adopted by the utility model to solve the above-mentioned technical problems is to design and manufacture a power battery pack device that is convenient for changing the installation orientation, including: the main body of the battery pack device, and a suspension assembly arranged on the back of the main body of the battery pack device; the suspension assembly include:

a fixing seat fixed to the vehicle frame, a coupling seat connecting the fixing seat and the main body of the battery pack device, and a locking device installed on the coupling seat for locking the main body of the battery pack device on the suspension assembly; The installation orientation of the main body of the battery pack device can be changed by setting the fixing orientation of the fixing seat on the vehicle frame;

The connecting seat is provided with a fixing seat connecting part detachably connected with the fixing seat and a battery pack device main body connecting part connected with the battery pack device main body; the fixing seat connecting part is arranged at the rear part of the connecting seat, A plurality of small holes are opened on it, and a plurality of screws respectively pass through the plurality of small holes from the inner wall of the connecting part of the fixed seat and screw into the screw holes provided on the fixed seat; the main body socket of the battery pack device It is a dovetail tenon inserted in the dovetail groove provided at the front of the coupling seat and the back of the main body of the battery pack device. The main body of the battery pack device can be easily detached from or reinstalled on the coupling seat through the plug-fitting of the dovetail groove and the dovetail tenon.

The coupling seat includes a coupling seat base with a concave cavity and a coupling seat top cover covering the concave cavity; the locking device is installed in the concave cavity, so that the opening port of the locking device is exposed;

The connecting part of the fixed seat of the coupling seat is provided with a concave position on the surface of the base of the coupling seat and the front part of the fixed seat, and a plurality of small holes opened on the connecting part of the fixed seat are located at the bottom of the concave position. The structure can not only prevent the rotation between the two, but also make the connection between the two tighter and prevent the connection from being pried open.

The recesses on the front part of the fixing base and the surface of the base of the coupling base are both square, and the coupling base can be installed on the fixing base in a horizontal or vertical direction.

The top cover of the coupling seat is fixedly connected to the base of the coupling seat through a plurality of small screws inserted from the edge of the top cover of the coupling seat. When the main body of the battery pack device is fully inserted into the coupling seat, the small screws are hidden , can prevent the coupling seat from being easily disassembled.

A metal washer designed to strengthen its connection strength with the fixed seat is placed on the bottom surface of the concave cavity at the base of the coupling seat, and the screw is screwed into the screw on the fixed seat after passing through the through hole on the metal washer. hole.

The locking device is a mechanical lock. When the lock is in the locked state, its deadbolt extends out of the through hole between the two dovetail tenons of the coupling seat and is inserted into the locking hole corresponding to the back of the main body of the battery pack device, so that the battery pack The unit body cannot be detached from the coupling base.

The connection surface between the fixing seat and the vehicle frame is an inner concave surface matching the curvature of the connection part of the vehicle frame, so that the two can be connected more closely and firmly.

The main body of the battery pack device includes a shell, a plurality of battery pack units placed in the shell, and a charge-discharge and charge-discharge protection circuit board electrically connected to the multiple battery pack units;

A bracket structure defining the position of the battery pack unit is arranged inside the housing, and the bracket structure includes: a lower bracket, an upper bracket, and a middle bracket located between the lower bracket and the upper bracket; the lower bracket and the upper bracket are uniform The same number of positioning holes as the number of batteries in a battery pack unit are arranged, and each positioning hole just holds a battery, and the upper and lower surfaces of the middle bracket are evenly arranged with each of the battery pack units. A positioning half hole for a battery;

A battery unit is sandwiched between the lower bracket and the middle bracket and between the middle bracket and the upper bracket. Therefore, a plurality of battery pack units are connected into a whole by the support structure and enclosed in the casing, which has an anti-seismic effect.

In order to further improve the shock resistance of the battery pack device, cushions are provided between the top and bottom of the plurality of battery pack units defined by the support structure and the inner wall of the casing.

Compared with the prior art, the power battery pack device of the present utility model has the following advantages: the main body of the battery pack device is detachably connected to the fixed seat through the coupling seat, and the connection position of the fixed seat on the vehicle frame can be conveniently changed. Install the main body of the battery pack device in any desired direction and position. When applied to electric bicycles, this structure greatly facilitates the rider. The main body of the battery pack device can be installed at a position that does not hinder getting on and off the bike; There is a locking device installed on it, which can lock the battery pack device on the connecting seat, and in the locked state, the connecting screw of the connecting seat is hidden and cannot be removed, which can play a very good anti-theft effect; the main body of the battery pack device The plurality of battery pack units are positioned and connected into a whole by the bracket structure and are tightly enclosed in the shell, which has a shockproof effect and greatly improves the stability of the battery pack during operation, so that the battery pack device of the present utility model can be applied to vibration. Environment.

Description of drawings

1 is a perspective view of the appearance of the battery pack device of the present invention;

Fig. 2 is an exploded view of the battery pack device of the present invention;

Fig. 3 is an exploded view of the structure of the fixed seat 2 and the coupling seat 3;

Fig. 4 is a schematic structural view of the battery pack device of the present invention when it is installed on the vehicle frame 9;

Fig. 5 is a structural schematic diagram of the rear part of the coupling seat 3;

FIG. 6 is an exploded view of the main body 1 of the battery pack device;

FIG. 7 is an exploded view of the battery pack unit 15 and its support structure in the housing 13;

8a-f are schematic diagrams of installing the battery pack device of the present invention on different positions of the electric bicycle frame.

Detailed ways

Below in conjunction with the best embodiment shown in the accompanying drawings, it will be further described in detail.

As shown in Fig. 1 and Fig. 2, the power battery pack device of the utility model, which is convenient for changing the installation orientation, is mainly composed of the main body 1 of the battery pack device and the suspension assembly arranged on the back of the main body 1 of the battery pack device, and the suspension assembly further includes: The fixed base 2 fixed to the vehicle frame, the coupling base 3 connecting the main body 1 of the battery pack device and the fixed base 2, and the coupling base 3 installed on the coupling base 3 are used to lock the main body 1 of the battery pack device on the suspension assembly on the locking device 5.

As shown in Figure 3, there are four screw holes 21 on the side where the fixed base 2 is connected with the coupling base 3, as shown in Figure 2 and Figure 4, the connection surface 22 between the fixed base 2 and the vehicle frame is in the same shape as the described The inner concave surface matched with the curvature of the connection part of the vehicle frame, of course, can also adopt different mating surfaces according to the different shapes of the connection part. As shown in FIG. 8 , the installation orientation of the main body 1 of the battery pack device can be conveniently changed by setting the fixing orientation of the fixing base 2 on the vehicle frame.

As shown in FIG. 2 , the rear part of the coupling seat 3 is provided with a fixing seat engaging part 31 detachably connected with the fixing seat 2 , and the front part is provided with a battery pack device main body connected with the battery pack device main body 1 The socket part 32. As shown in Figure 3, the coupling base 3 includes a coupling base base 33 with a cavity 35 and a coupling base cover 34 covering the cavity 35, both of which are inserted through four corners from the edge of the coupling base cover 34. Small screw rod 82 is fixedly connected. The bottom surface of the coupling seat base 33 is the fixing seat connecting portion 31, and the bottom surface is provided with a plurality of small holes 36 communicating with the concave cavity 35. In order to strengthen the connection strength, a bottom surface of the concave cavity 35 is placed A metal gasket 6 with through holes 61 at the four corners, four screws 81 concealed in the cavity 35 respectively pass through the through holes 61 on the metal gasket 6 and the small holes 36 at the bottom of the cavity 35 and then screw in and fix In the screw hole 21 of seat 2 front portion. In order to make the fixed seat 2 and the coupling seat 3 more tightly combined and prevent the relative rotation between the two, the surface of the connecting part 31 of the fixed seat 3 is provided with a Concave 311 (see Fig. 2), described small hole 36 is positioned at the bottom of this concavity 311, and described fixing seat 2 front part and concavity 311 are all square, make coupling seat 3 can be along horizontal or vertical direction and fixed Seat 2 is connected.

As shown in Figure 2, the back of the main body 1 of the battery pack device is provided with a dovetail groove 11. The dovetail tenons 32 are tightly inserted into the dovetail slots 11 . As shown in Figures 3 and 5, the locking device 5 is installed in the concave cavity 35, and a mechanical lock can be used. When the lock is in the locked state, the locking tongue 51 protrudes between the two dovetail tenons 32 of the coupling seat 3. Insert the through hole 37 between them into the locking hole 12 corresponding to the back of the main body 1 of the battery pack device. At this time, the main body 1 of the battery pack device cannot be removed from the coupling seat 3. In order to strengthen the strength, the lock and the inner surface of the top cover 34 of the coupling seat Metal spacers 7 are also arranged between them.

During installation, the connection seat 3 and the fixed seat 2 are fixedly connected by screws 81 first, and then the locking device 5 is installed, and the connection seat top cover 34 and the connection seat base 33 are fixedly connected with a small screw 82, and finally the battery pack device main body 1 The dovetail groove 11 on the back is aligned with the dovetail tenon 32 at the front of the coupling seat 3 and can be fully inserted laterally. At this time, the four small screws 82 at the front of the coupling seat 3 are hidden by the main body 1 of the battery pack device and cannot be removed. After the main body 1 of the battery pack device is fully inserted into the coupling seat 3, the key of the locking device 5 is inserted into the lock hole and screwed to the locked position. At this moment, the main body 1 of the battery pack device is locked on the suspension assembly.

As shown in Figure 6, the main body 1 of the battery pack device includes a casing 13, a plurality of battery cells 15 placed in the casing 13, and a charge-discharge and charge-discharge protection circuit electrically connected to the plurality of battery cells 15 plate 16. As shown in FIG. 7 , a bracket structure defining the position of the battery pack unit 15 is arranged inside the housing 13 , and the bracket structure includes: a lower bracket 171 , an upper bracket 172 and a bracket located between the lower bracket 171 and the upper bracket 172 . The middle support 173 of. The lower support 171 and the upper support 172 are evenly provided with positioning holes 175 having the same number of batteries as a battery pack unit 15, each positioning hole 175 just clamps a battery, and the upper and lower two of the middle support 173 Positioning half holes 176 that can hold each battery of a battery pack unit 15 are evenly distributed on each surface. Between the lower bracket 171 and the middle bracket 173 and between the middle bracket 173 and the upper bracket 172 each clamps a battery pack unit 15, and each battery pack unit 15 is welded with a metal contact piece 18 at both ends of the electrodes. Each battery unit 15 is separated by an insulating partition 177 in the middle of the middle bracket 173 to prevent short circuit. Cushions (not shown in the figure) are respectively arranged between the top and bottom of the two battery pack units 15 defined by the support structure and the inner wall of the housing 13, and the periphery is tightly surrounded by the inner wall of the housing 13, Therefore, the shock resistance of the battery pack device can be greatly improved, and the stability of the battery pack during operation can be ensured.

Claims (9)

1. a convenient for changing installation position power battery pack device comprises: battery apparatus main body (1) and the suspension assembly that is arranged on battery apparatus main body (1) back side; It is characterized in that described suspension assembly comprises:

The permanent seat affixed (2), the blocking device (5) that connects the coupling seat (3) of described permanent seat (2) and battery apparatus main body (1) and be installed in the battery apparatus main body of described coupling seat (3) with vehicle frame;

Described coupling seat (3) be provided with described permanent seat (2) can load and unload bonded assembly permanent seat convergence part (31) and with described battery apparatus main body (1) bonded assembly battery apparatus main body Plug Division (32); Described permanent seat convergence part (31) is arranged on coupling seat (3) rear portion, offer a plurality of apertures (36) on it, a plurality of screws (81) pass these a plurality of apertures (36) respectively from the inwall of described permanent seat convergence part (31) and screw in the screw (21) that described permanent seat (2) is offered; Described battery apparatus main body Plug Division (32) is for being arranged on the dovetail tenon (32) that the anterior dovetail furrow (11) that is provided with described battery apparatus main body (1) back side of coupling seat (3) is pegged graft.

2. convenient for changing installation position power battery pack device according to claim 1 is characterized in that: described coupling seat (3) comprise have cavity (35) coupling seat base portion (33) and hide the coupling seat top cover (34) of described cavity (35); Described blocking device (5) is installed in the described cavity (35), allows blocking device open port and exposes;

The permanent seat convergence part (31) of described coupling seat (3) is provided with and is positioned at the recess (311) that matches with described permanent seat (2) front portion in coupling seat base portion (33) surface, and a plurality of apertures (36) of offering on the described permanent seat convergence part (31) are positioned at the bottom of this recess (311).

3. convenient for changing installation position power battery pack device according to claim 2 is characterized in that: described permanent seat (2) recess (311) anterior and described coupling seat base portion (33) surface all is square.

4. convenient for changing installation position power battery pack device according to claim 2, it is characterized in that: described coupling seat top cover (34) is captiveed joint by a plurality of small screws (82) that insert from coupling seat top cover (34) edge with described coupling seat base portion (33), when described battery apparatus main body (1) was inserted described coupling seat (3) fully, described small screw (82) was hidden state.

5. convenient for changing installation position power battery pack device according to claim 2, it is characterized in that: the bottom faces of described coupling seat base portion (33) cavity (35) is placed a metallic gasket (6) that is intended to strengthen itself and permanent seat (2) Joint strenght, and described screw (81) passes the screw (21) that screws in again behind the through hole (61) on this metallic gasket (6) on the described permanent seat (2).

6. according to each described convenient for changing installation position power battery pack device of claim 1 to 5, it is characterized in that: described blocking device (5) is a mechanical lock, when lock was in the lock state, its dead bolt (51) stretched out the through hole (37) between coupling seat (3) the two dovetail tenons (32) and inserts in the lock hole (12) of battery apparatus main body (1) corresponding position, the back side.

7. according to each described convenient for changing installation position power battery pack device of claim 1 to 5, it is characterized in that: the joint face (22) of described permanent seat (2) and vehicle frame is the inner concave that the curvature with described vehicle frame connecting portion is complementary.

8. according to each described convenient for changing installation position power battery pack device of claim 1 to 5, it is characterized in that: described battery apparatus main body (1) comprises shell (13), be placed on a plurality of battery assembly modules (15) in the shell (13) and discharging and recharging and charge-discharge protection circuit plate (16) of being electrically connected with described a plurality of battery assembly modules (15);

Dispose the supporting structure that limits described battery assembly module (15) position in the described shell (13), this supporting structure comprises: lower bracket (171), upper bracket (172) and be positioned at described lower bracket (171) and upper bracket (172) between middle bracket (173); Described lower bracket (171) evenly is laid with the knock hole (175) identical with the number of battery cells of a battery assembly module (15) with upper bracket (172), each knock hole (175) is battery of clamping just in time, described middle bracket (173) but upper and lower two faces each evenly be laid with half hole, location (176) of each battery of a battery assembly module of clamping (15);

A battery assembly module of each clamping (15) between described lower bracket (171) and the middle bracket (173) and between described middle bracket (173) and the upper bracket (172).

9. convenient for changing installation position power battery pack device according to claim 8 is characterized in that: be respectively arranged with cushion between a plurality of battery assembly modules (15) the single-piece top that is limited by described supporting structure and the inwall of bottom and described shell (13).

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