CN206202560U - A lithium battery installation structure applied to electric bicycles - Google Patents

Abstract

The utility model discloses a lithium battery mounting structure applied to an electric bicycle, which comprises a bicycle frame and a lithium battery, wherein the bicycle frame comprises a front frame and a rear frame, the rear end part of the front frame is hinged with the front end part of the rear frame, the middle part of the rear frame is provided with a battery bin with a downward opening, and the lithium battery is embedded in the battery bin; the lithium battery comprises a battery shell and a battery cell, wherein the battery shell comprises an upper battery shell and a lower battery shell, the battery cell is embedded in a cell accommodating cavity in the battery shell, and the lower battery shell is provided with a battery lead-out terminal, a battery charging interface and a battery handle; the PCB circuit board is arranged at the side of the battery bin inside the rear frame, the controller joint is arranged on the PCB circuit board, and when the lithium battery is inserted into the battery bin, the controller joint is in butt joint with the battery leading-out terminal and realizes electric connection. Through the structure design, the utility model has the advantages of modern design, easy dismounting, simple structure just can prolong the life of lithium cell effectively.

Description

A lithium battery installation structure applied to electric bicycles

technical field

The utility model relates to the technical field of electric bicycles, in particular to a lithium battery installation structure applied to electric bicycles.

Background technique

As the concept of low-carbon and environmentally friendly life becomes more and more popular, electric bicycles are becoming more and more popular as a means of transportation. With the continuous improvement of modern families' pursuit of life taste, the requirements for electric bicycles are not just for simple transportation. Tools, appearance, structure and other aspects are also getting higher and higher.

Generally speaking, in the design of electric vehicles, the most troublesome thing is the installation position of the battery and the design of the circuit. The installation position of the battery directly affects the appearance of the product; secondly, the installation position of the battery circuit and the supporting power controller is also very important. The key is related to the appearance of the product and the safety of the battery in harsh environments.

There are generally two installation methods for the existing portable electric bicycle lithium batteries: one is to install the battery externally, the main location is at the rear and lower part of the seat, and the external battery greatly affects the appearance of the vehicle; the other is to install the battery inside, It is mainly placed inside the cross beam of the frame, which not only affects the appearance of the vehicle body, but also affects the convenience of folding the vehicle body.

Utility model content

The purpose of this utility model is to provide a lithium battery installation structure applied to electric bicycles in view of the deficiencies of the prior art. The lithium battery installation structure applied to electric bicycles is novel in design, easy to disassemble, simple in structure and can Extend the life of lithium batteries.

In order to achieve the above object, the utility model is realized through the following technical solutions.

A lithium battery installation structure applied to electric bicycles includes a bicycle frame and a lithium battery. The bicycle frame includes a front frame and a rear frame positioned at the rear end of the front frame. The rear end of the front frame is connected to the The front end of the rear frame is hinged, and the middle part of the rear frame is provided with a battery compartment that opens downward, and the lithium battery is embedded in the battery compartment;

The lithium battery includes a battery case and a battery cell. The battery case includes a battery upper case and a battery lower case installed at the lower end of the battery upper case. The interior of the battery case is formed between the battery upper case and the battery lower case. There is a cell accommodating cavity, and the battery cell is embedded in the cell accommodating cavity. The battery lower case is equipped with a battery lead-out terminal, a battery charging interface, and a battery handle. connect;

The interior of the rear frame is equipped with a PCB circuit board on the side of the battery compartment. The PCB circuit board is equipped with a controller connector that matches the battery lead-out terminal. The controller connector is electrically connected to the PCB circuit board. When the lithium battery is inserted into the In the battery compartment, the controller connector is docked with the battery lead-out terminal to achieve electrical connection.

Wherein, the lower case of the battery is equipped with a telescopic lock that can be moved relatively flexibly. There is a battery lock hole corresponding to the retractable lock on the upper part. When the lithium battery is inserted and locked in the battery compartment, the retractable lock is inserted into the battery lock hole.

Wherein, the telescopic lock head is in the shape of a cylinder.

The beneficial effects of the utility model are: a lithium battery installation structure applied to an electric bicycle described in the utility model includes a bicycle frame and a lithium battery, and the bicycle frame includes a front frame, a rear frame, and a front frame The rear end is hinged with the front end of the rear frame, and the middle of the rear frame is provided with a battery compartment that opens downward, and the lithium battery is embedded in the battery compartment; the lithium battery includes a battery case and a battery cell, and the battery case includes a battery upper case , The battery lower case, the battery cell is embedded in the cell cavity inside the battery case, the battery lower case is equipped with battery lead-out terminals, battery charging interface, battery handle; the rear frame is installed beside the battery compartment PCB circuit board, the PCB circuit board is equipped with a controller connector. When the lithium battery is inserted into the battery compartment, the controller connector and the battery lead-out terminal are docked and matched to realize electrical connection. Through the above structural design, the utility model has the following advantages, specifically: 1. The foldable frame structure design is convenient for storage and transportation; 2. The lithium battery is built into the battery compartment of the rear frame, and the battery compartment is combined with the seat support part. Two into one, the appearance is simple and beautiful; 3. The structure design of the lithium battery 2 is simple and reliable; 4. The installation structure of the lithium battery is simple, the installation is firm, and the disassembly and assembly are convenient and quick; 5. The opening of the battery compartment is facing downward to prevent short circuit caused by rainwater infiltration , Effectively protect the life of lithium batteries in harsh environments.

Description of drawings

The utility model is further described below using the drawings, but the embodiments in the drawings do not constitute any limitation to the utility model.

Fig. 1 is the installation diagram of the utility model.

FIG. 2 is a schematic structural view of the lithium battery of the present invention.

FIG. 3 is a structural schematic diagram of another viewing angle of the lithium battery of the present invention.

Fig. 4 is a structural schematic diagram of the bicycle frame of the present invention.

In Figures 1 to 4 include:

1——bicycle frame 11——front frame

12——rear frame 121——battery compartment

122——Battery lock hole 2——Lithium battery

21——Battery shell 211——Battery upper shell

212——Battery lower case 22——Battery lead-out terminal

23——Battery charging interface 24——Battery handle

25——Telescopic lock head 26——Lock cylinder

3——PCB circuit board 31——controller connector.

detailed description

The utility model will be described below in conjunction with specific embodiments.

As shown in Figures 1 to 4, a lithium battery installation structure applied to electric bicycles includes a bicycle frame 1 and a lithium battery 2, and the bicycle frame 1 includes a front frame 11 located at the rear end of the front frame 11 The rear frame 12 on the side, the rear end of the front frame 11 is hinged with the front end of the rear frame 12, the middle part of the rear frame 12 is provided with a battery compartment 121 opening downward, and the lithium battery 2 is embedded in the battery compartment 121 Inside.

Further, the lithium battery 2 includes a battery case 21 and a battery cell. The battery case 21 includes a battery upper case 211 and a battery lower case 212 installed at the lower end of the battery upper case 211. The interior of the battery case 21 is A cell accommodating cavity is formed between the battery upper case 211 and the battery lower case 212. The battery cell is embedded in the cell accommodating cavity. The battery lower case 212 is equipped with a battery lead-out terminal 22, a battery charging interface 23, a battery The handle 24, the battery lead-out terminal 22, and the battery charging interface 23 are respectively electrically connected to the battery cell.

Furthermore, the inside of the rear frame 12 is provided with a PCB circuit board 3 on the side of the battery compartment 121, and the PCB circuit board 3 is provided with a controller joint 31 matching with the battery lead-out terminal 22, and the controller joint 31 is connected to the The PCB circuit board 3 is electrically connected. When the lithium battery 2 is inserted into the battery compartment 121 , the controller connector 31 is mated with the battery lead-out terminal 22 to realize electrical connection.

In addition, as shown in Figures 1 to 4, the lower battery case 212 is equipped with a telescopic lock head 25 that can be moved relatively flexibly. The lower end of the lock core 26 and the inner wall of the battery compartment 121 is provided with a battery lock hole 122 corresponding to the telescopic lock head 25. When the lithium battery 2 is inserted and locked in the battery compartment 121, the telescopic lock head 25 is inserted into the battery lock hole 122 . Further explanation is needed, the telescopic lock head 25 of the present utility model can be designed into a cylindrical shape; certainly, the above-mentioned shape design does not constitute a limitation to the present utility model, that is, the telescopic lock head 25 of the present utility model can also be designed into other shapes and styles .

The rear end of the front frame 11 of the utility model is hinged with the front end of the rear frame 12. During the use of the utility model, the front frame 11 and the rear frame 12 are aligned and the front frame 11 and the rear frame 12 pass through Corresponding fixing buckles are fixed at designated positions; when the utility model is not in use, the front frame 11 and the rear frame 12 can be folded and the front frame 11 and the rear frame 12 can be folded together to facilitate storage and transportation.

The opening of the battery compartment 121 of the present invention is designed to face downwards. During the use of the present invention, the lithium battery 2 is inserted into the battery compartment 121 from bottom to top. For the installation method of the lithium battery 2 of the present utility model, it does not affect the appearance of the vehicle frame, but also facilitates the taking of the battery. At the same time, it can also ensure the stability of the lithium battery 2 and prevent the battery from being loosened due to the bumps when the electric vehicle is driving. , can also prevent rainwater from penetrating into the battery compartment 121, which can effectively protect the life of the lithium battery 2 in harsh environments.

It should be further pointed out that during the installation process of the present utility model, when the lithium battery 2 is inserted into the battery compartment 121 of the rear frame 12, the battery lead-out terminal 22 of the lithium battery 2 is docked with the controller connector 31 of the PCB circuit board 3 . The battery charging interface 23 is used to connect with an external charger and to charge the battery cells, wherein the lithium battery 2 can be charged on the bicycle frame 1 or can be disassembled and charged separately. The lock core 26 is used in conjunction with the key, and the key is inserted into the corresponding key hole of the lock core 26. When the key is turned, the telescopic lock head 25 stretches out or shrinks. Adaptation, when the retractable lock 25 is stretched out, the lithium battery 2 is fixed in the battery compartment 121; when the retractable lock 25 is retracted, the lithium battery 2 can be taken out from the battery compartment 121.

Based on the above-mentioned circumstances, it can be seen that through the above-mentioned structural design, the utility model has the following advantages, specifically:

1. The foldable frame structure design is convenient for storage and transportation;

2. The lithium battery 2 is built into the battery compartment 121 of the rear frame 12, and the battery compartment 121 and the seat support part are combined into one, with a simple and beautiful appearance;

3. The structure design of lithium battery 2 is simple and reliable;

4. The installation structure of the lithium battery 2 is simple, the installation is firm, and the disassembly and assembly are convenient and quick;

5. The opening of the battery compartment 121 faces downward to prevent short circuit caused by rainwater infiltration, and effectively protect the life of the lithium battery 2 in harsh environments.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (3)

1. A lithium battery installation structure applied to electric bicycles, characterized in that: it includes a bicycle frame (1), a lithium battery (2), and the bicycle frame (1) includes a front frame (11), located at the front The rear vehicle frame (12) on the rear end side of the vehicle frame (11), the rear end of the front vehicle frame (11) is hinged with the front end of the rear vehicle frame (12), and the middle part of the rear vehicle frame (12) is provided with a downward facing An open battery compartment (121), the lithium battery (2) is embedded in the battery compartment (121); The lithium battery (2) includes a battery case (21), a battery cell, and the battery case (21) includes a battery upper case (211) and a battery lower case (212) installed at the lower end of the battery upper case (211). ), the inside of the battery case (21) is formed with a cell accommodating cavity between the battery upper case (211) and the battery lower case (212), the battery cell is embedded in the cell accommodating cavity, and the battery lower case (212) A battery lead-out terminal (22), a battery charging interface (23), and a battery handle (24) are installed, and the battery lead-out terminal (22) and the battery charging interface (23) are respectively electrically connected to the battery cells; The inside of the rear frame (12) is equipped with a PCB circuit board (3) on the side of the battery compartment (121), and the PCB circuit board (3) is equipped with a controller connector ( 31), the controller connector (31) is electrically connected to the PCB circuit board (3), when the lithium battery (2) is inserted into the battery compartment (121), the controller connector (31) is mated with the battery lead-out terminal (22) and To achieve electrical connection. 2. A lithium battery installation structure applied to electric bicycles according to claim 1, characterized in that: the lower battery case (212) is relatively telescopically and movablely equipped with a telescopic lock (25), and the lower battery case (212) is The shell (212) corresponds to the telescopic lock head (25) and is equipped with a lock cylinder (26) that drives the telescopic lock head (25) to move and is used in conjunction with the key. The lower end of the inner wall of the battery compartment (121) corresponds to the telescopic lock head ( 25) A battery lock hole (122) is provided. When the lithium battery (2) is inserted and locked in the battery compartment (121), the retractable lock head (25) is inserted into the battery lock hole (122). 3. A lithium battery installation structure applied to electric bicycles according to claim 2, characterized in that: the telescopic lock head (25) is in the shape of a cylinder.