Electric bicycle with extensible battery compartment

Abstract

The electric bicycle comprises an electric bicycle body, a storage bin and the battery bin, the storage bin and the battery bin are arranged at the lower end of a seat cushion in the electric bicycle body, a guide groove is fixedly installed in the storage bin, a closing cover is installed in the guide groove in a sliding mode, and when the closing cover slidably covers the inner bottom of the storage bin, the battery bin is arranged in the storage bin. The bottom of the storage bin can be closed to achieve storage, after the closing cover slides out of the storage bin to cover the upper end of the battery bin, the battery bin can communicate with the storage bin, a U-shaped plate is fixedly installed at one end of the storage bin, a groove formed in one end of the U-shaped plate communicates with the storage bin, and a locking mechanism is rotationally installed in the groove of the U-shaped plate. Through the design of the battery bin and the storage bin, the expansion function is achieved by communicating the original storage bin and the battery bin of the electric bicycle, and the existing space is utilized to the maximum degree on the premise that the appearance and the overall structure of the electric bicycle are not changed.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle storage batteries, in particular to an electric bicycle with an expandable battery compartment. Background Art

[0002] The battery of an electric vehicle is the power source of the electric vehicle. Most of the electric vehicles are equipped with lead-acid batteries, which are low in cost and cost-effective. Because this battery can be charged and used repeatedly, it is called "lead-acid battery". There are four types of power batteries that can be used in electric bicycles, namely valve-regulated lead-acid maintenance-free batteries, colloidal lead-acid batteries, nickel-metal hydride batteries and lithium-ion batteries.

[0003] For example, the patent with national authorized patent announcement number CN221251626U discloses an expandable electric bicycle battery structure, including an electric vehicle battery pedal, a sealed pedal cover and a battery, wherein the electric vehicle battery pedal is fixedly installed with a sealed pedal cover, and the electric vehicle battery pedal is internally installed with a battery, and a plurality of batteries are arranged; the utility model can prevent the battery from moving inside its battery compartment, and prevent the battery from colliding with each other due to random activities, thereby reducing damage to the battery. In addition, by setting a limiting structure and a sealed pedal cover, a battery can be further added to the battery compartment, and the size of the battery compartment can be expanded, so as to facilitate the user to achieve the purpose of battery expansion.

[0004] However, in the expandable electric bicycle battery structure, the battery can only be installed in the original space during the battery compartment expansion process, which will cause the battery compartment to be very compact. In this way, the heat dissipation of the battery will become more difficult, which may easily cause overheating problems. Utility Model Content

[0005] The utility model aims to provide an electric bicycle with an expandable battery compartment, so as to solve the problem in the background art that during the battery compartment expansion process, batteries can only be installed in the original space.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An electric bicycle with an expandable battery compartment comprises: an electric bicycle body, and a storage compartment and a battery compartment arranged at the lower end of a seat cushion in the electric bicycle body, wherein the length of the battery compartment is greater than the length of the storage compartment, a guide groove is fixedly installed in the storage compartment, a closing cover is slidably installed in the guide groove, when the closing cover slides to cover the bottom of the storage compartment, the bottom of the storage compartment can be closed to store items, and after the closing cover slides out of the storage compartment and covers the upper end of the battery compartment, the battery compartment and the storage compartment can be connected, so that the wires in the battery compartment can extend into the storage compartment and connect with the storage batteries expanded and placed in the storage compartment;

[0008] A C-shaped plate is fixedly installed at one end of the storage bin, a groove provided at one end of the C-shaped plate is communicated with the storage bin, and a locking mechanism is rotatably installed in the groove of the C-shaped plate.

[0009] Preferably, after the battery in the battery compartment is connected with the battery expanded and added in the storage compartment, the wires can extend from the wiring port to be electrically connected to the motor of the electric bicycle body, and the wiring port is opened at one end of the storage compartment.

[0010] Preferably, the locking mechanism can fit into a first limiting groove and a second limiting groove, the first limiting groove and the second limiting groove are provided on the upper surface of the extension plate and the closing cover, and the extension plate is fixedly mounted at one end of the closing cover;

[0011] When the closing cover covers the bottom of the storage bin, the locking mechanism will fit into the first limiting groove; when the closing cover slides out of the storage bin to cover the upper end of the battery bin and connects the battery bin with the storage bin, the locking mechanism will fit into the second limiting groove.

[0012] Preferably, when the closing cover slides out from the storage compartment and covers the upper end of the battery compartment, the extension plate at one end of the closing cover is inserted into the support groove, and the support groove is opened at one end of the battery compartment.

[0013] Preferably, the locking mechanism includes a connecting column, with rotation grooves on both sides of the connecting column, a mainspring is fixedly connected to the inner ring wall of the rotation groove, a rotating column is fixedly connected to the central part of the mainspring, the rotating column is rotatably installed in the rotation groove, a pressing plate is fixedly installed on the upper end of the outer surface of the rotating column, a buckling plate is fixedly installed on the lower end of the outer surface of the rotating column, and a clamping block is fixedly installed on the lower surface of the buckling plate.

[0014] Preferably, the rotating column can drive the clamping block to fit into the first limiting groove and the second limiting groove through the torsional force of the mainspring.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Through the design of the battery compartment, storage compartment, closing cover and locking mechanism, during normal use, the closing cover in the storage compartment will close the inner bottom of the storage compartment to serve as a storage space. When it is necessary to expand and install additional batteries, it is necessary to first press the locking mechanism to disengage it from the first limit groove to unlock the locking force of the closing cover. Then, the closing cover can be pulled to slide from the bottom of the storage compartment to cover the upper surface of the battery compartment, and at the same time, the extension plate fixedly installed at one end of the closing cover will be inserted into the supporting groove to obtain a supporting force. When it is slid from the bottom of the storage compartment into the battery compartment, the battery compartment and the storage compartment will be connected. Then, the staff can increase the number of batteries on the upper surface of the closing cover in the storage compartment to achieve the expansion function, and the connecting function of the sliding expansion of the closing cover can provide the batteries in the battery compartment with a connecting plate. The opening is electrically connected to the battery in the storage bin, and the battery in the storage bin can pass the wires through the wiring opening to be electrically connected to the electric bicycle, and in the process of sliding the extension plate of the closing cover into the supporting groove, the second limit groove provided on the upper surface of the closing cover will be stuck by the locking mechanism to achieve the function of locking the position of the closing cover. This structure realizes the expansion function by connecting the original storage bin of the electric bicycle with the battery bin, and maximizes the use of the existing space without changing the appearance and overall structure of the electric bicycle, and can make full use of every inch of space to increase the capacity of the battery, and this design allows the battery capacity to be flexibly increased when needed, and the storage bin can still be used as an ordinary storage space when expansion is not needed, which is very convenient for users and can adjust the usage method according to specific needs.

[0017] 2. Through the design of the pressing plate, the spring, the buckling plate and the card block, when the staff needs to pull the closing cover to connect the battery compartment with the storage compartment, they can first press the pressing plate to drive the rotating column to rotate in the rotating groove, and twist the spring while rotating, and the spring will apply a reverse rotational force to the rotating column, and the rotating rotating column will drive the card block on the lower surface of the buckling plate to disengage from the first limiting groove, thereby releasing the restriction on the closing cover and allowing the staff to push the closing cover to cover the upper surface of the battery compartment. In the process of pushing the closing cover, the staff can release the pressing force on the pressing plate, and the card block will touch the upper surface of the closing cover through the torsional force until the closing cover is pushed to the extension plate and inserted into the support groove, so that the second limiting groove on the surface is flush with the card block, and the card block is inserted into the second limiting groove to lock the position of the closing cover, and the closing cover is unlocked by pressing the pressing plate, which makes the operation very simple. The staff only needs to press and push to complete the operation. This design saves time and effort and is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the closing cover of the utility model closing the bottom of the storage bin;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model in which the closing cover is extended into the battery compartment to communicate with the storage compartment;

[0020] Figure 3 This is a schematic diagram of the U-shaped plate structure of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the guide groove and the support groove of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the first limiting groove and the second limiting groove of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the locking mechanism of the utility model.

[0024] In the figure: 1. battery compartment; 101. support slot; 2. storage compartment; 201. closing cover; 202. wiring port; 203. C-shaped plate; 204. extension plate; 205. first limiting slot; 206. guide slot; 207. second limiting slot; 3. locking mechanism; 301. connecting column; 302. rotating slot; 303. rotating column; 304. spring; 305. block; 306. buckling plate; 307. pressing plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 6 , this embodiment provides a technical solution:

[0027] like Figure 1-Figure 4 As shown, an electric bicycle with an expandable battery compartment comprises: an electric bicycle body, a storage compartment 2 and a battery compartment 1 arranged at the lower end of a seat cushion in the electric bicycle body, the length of the battery compartment 1 being greater than the length of the storage compartment 2, a guide groove 206 being fixedly installed in the storage compartment 2, a closing cover 201 being slidably installed in the guide groove 206, when the closing cover 201 slides and covers the bottom of the storage compartment 2, the bottom of the storage compartment 2 can be closed to store things, and after the closing cover 201 slides out of the storage compartment 2 and covers the upper end of the battery compartment 1, the battery compartment 1 can be connected with the storage compartment 2, so that the wires in the battery compartment 1 can extend into the storage compartment 2 and be connected with the storage batteries expanded and placed in the storage compartment 2;

[0028] Among them, a C-shaped plate 203 is fixedly installed at one end of the storage bin 2, a groove opened at one end of the C-shaped plate 203 is connected to the storage bin 2, and a locking mechanism 3 is rotatably installed in the groove of the C-shaped plate 203.

[0029] After the battery in the battery compartment 1 is connected with the battery expanded and added in the storage compartment 2 by wires, it can extend from the wiring port 202 to be electrically connected to the motor of the electric bicycle body. The wiring port 202 is opened at one end of the storage compartment 2.

[0030] The locking mechanism 3 can fit into the first limiting groove 205 and the second limiting groove 207. The first limiting groove 205 and the second limiting groove 207 are provided on the upper surfaces of the extension plate 204 and the closing cover 201. The extension plate 204 is fixedly mounted on one end of the closing cover 201.

[0031] Among them, when the closing cover 201 covers the bottom of the storage compartment 2, the locking mechanism 3 will fit into the first limit groove 205. When the closing cover 201 slides out of the storage compartment 2 to cover the upper end of the battery compartment 1 and connects the battery compartment 1 with the storage compartment 2, the locking mechanism 3 will fit into the second limit groove 207.

[0032] When the closing cover 201 slides out from the storage compartment 2 and covers the upper end of the battery compartment 1 , the extension plate 204 at one end of the closing cover 201 is inserted into the support groove 101 , which is opened at one end of the battery compartment 1 .

[0033] Through the design of the battery compartment 1, storage compartment 2, closing cover 201 and locking mechanism 3, during normal use, the closing cover 201 in the storage compartment 2 will close the inner bottom of the storage compartment 2 to serve as a storage space. When it is necessary to expand and install additional batteries, it is necessary to first press the locking mechanism 3 to disengage it from the first limiting groove 205 to unlock the locking force of the closing cover 201, and then the closing cover 201 can be pulled to slide from the bottom of the storage compartment 2 to cover the upper surface of the battery compartment 1, and at the same time, the extension plate 204 fixedly installed at one end of the closing cover 201 will be inserted into the supporting groove 101 to obtain a supporting force, and when it is slid from the bottom of the storage compartment 2 into the battery compartment 1, the battery compartment 1 will be connected with the storage compartment 2, and then the staff can increase the number of batteries on the upper surface of the closing cover 201 in the storage compartment 2 to realize the expansion function, and the communication function through the sliding expansion of the closing cover 201 can provide the battery compartment 1 with a certain degree of security. The battery is electrically connected to the battery in the storage bin 2 through the connecting port, and the battery in the storage bin 2 can pass the wires through the wiring port 202 to be electrically connected to the electric bicycle, and in the process of the extension plate 204 of the closing cover 201 sliding into the supporting groove 101, the second limiting groove 207 on the upper surface of the closing cover 201 will be locked by the locking mechanism 3 to achieve the function of locking the position of the closing cover 201. This structure connects the original storage bin 2 of the electric bicycle with the battery bin 1 to achieve the expansion function, and maximizes the use of the existing space without changing the appearance and overall structure of the electric bicycle. Every inch of space can be fully utilized to increase the capacity of the battery, and this design allows the battery capacity to be flexibly increased when needed, and the storage bin 2 can still be used as an ordinary storage space when expansion is not needed. This is very convenient for users and the usage method can be adjusted according to specific needs.

[0034] like Figure 5-Figure 6 As shown, the locking mechanism 3 includes a connecting column 301, and a rotating groove 302 is opened on both sides of the connecting column 301. The inner ring wall of the rotating groove 302 is fixedly connected to a spring 304, and the central part of the spring 304 is fixedly connected to a rotating column 303. The rotating column 303 is rotatably installed in the rotating groove 302, and a pressing plate 307 is fixedly installed on the upper end of the outer surface of the rotating column 303, and a buckling plate 306 is fixedly installed on the lower end of the outer surface of the rotating column 303, and a clamping block 305 is fixedly installed on the lower surface of the buckling plate 306.

[0035] The rotating column 303 can drive the clamping block 305 to fit into the first limiting groove 205 and the second limiting groove 207 through the torsional force of the mainspring 304 .

[0036] Through the design of the pressing plate 307, the spring 304, the buckling plate 306 and the block 305, when the staff needs to pull the closing cover 201 to connect the battery compartment 1 with the storage compartment 2, they can first press the pressing plate 307 to drive the rotating column 303 to rotate in the rotating groove 302, and at the same time, the spring 304 will be twisted, and the spring 304 will apply a reverse rotational force to the rotating column 303, and the rotating rotating column 303 will drive the block 305 on the lower surface of the buckling plate 306 to disengage from the first limiting groove 205, thereby releasing the restriction on the closing cover 201 and allowing the staff to push the closing cover. The closing cover 201 covers the upper surface of the battery compartment 1, and in the process of pushing the closing cover 201, the staff can release the pressing force on the pressing plate 307, and the card block 305 will touch the upper surface of the closing cover 201 through the torsion force, until the closing cover 201 is pushed to the extension plate 204 and inserted into the support groove 101, so that the second limiting groove 207 opened on the surface is flush with the card block 305, and the card block 305 is inserted into the second limiting groove 207 to lock the position of the closing cover 201, and the restriction of the closing cover 201 is unlocked by pressing the pressing plate 307, which can make the operation very simple. The staff only needs to press and push to complete the operation, and such a design saves time and effort and is very convenient to use.

[0037] The working steps of this scheme are summarized and sorted out according to the above technical scheme: during normal use, the closing cover 201 in the storage bin 2 will close the inner bottom of the storage bin 2 to serve as a storage space. When the battery needs to be expanded and installed, it is necessary to first press the pressing plate 307 to drive the rotating column 303 to rotate in the rotating groove 302, and the spring 304 will be twisted while rotating, and the spring 304 will apply a reverse rotational force to the rotating column 303, and the rotating rotating column 303 will drive the card block 305 on the lower surface of the buckling plate 306 to disengage from the first limiting groove 205, thereby releasing the restriction on the closing cover 201 and allowing the staff to push the closing cover 201 to cover the upper surface of the battery compartment 1. In the process of pushing the closing cover 201, the staff can release the pressing force on the pressing plate 307, and the card block 305 will be released. The block 305 will touch the upper surface of the closing cover 201 through the torsional force until the closing cover 201 is pushed to the extension plate 204 and inserted into the support groove 101, so that the second limit groove 207 opened on the surface will be flush with the card block 305 so that the card block 305 can be inserted into the second limit groove 207 to lock the position of the closing cover 201, and the closing cover 201 slid into the battery compartment 1 from the bottom of the storage compartment 2 will connect the battery compartment 1 with the storage compartment 2, and then the staff can increase the number of batteries on the upper surface of the closing cover 201 in the storage compartment 2 to realize the expansion function, and through the connection function of the sliding expansion of the closing cover 201, the batteries in the battery compartment 1 can be electrically connected to the batteries in the storage compartment 2 through the connecting port, and the batteries in the storage compartment 2 can pass the wires through the wiring port 202 to electrically connect with the electric bicycle.

[0038] In summary: this expansion function achieved by connecting the original storage compartment 2 of the electric bicycle with the battery compartment 1 maximizes the use of the existing space without changing the appearance and overall structure of the electric bicycle, and can make full use of every inch of space to increase the capacity of the battery. This design allows the battery capacity to be flexibly increased when needed, and the storage compartment 2 can still be used as an ordinary storage space when expansion is not required. This is very convenient for users, and they can adjust the usage according to specific needs.

[0039] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An electric bicycle with an expandable battery compartment, characterized in that: include: An electric bicycle body and a storage bin (2) and a battery bin (1) arranged at the lower end of a seat cushion in the electric bicycle body, wherein the length of the battery bin (1) is greater than the length of the storage bin (2), a guide groove (206) is fixedly installed in the storage bin (2), a closing cover (201) is slidably installed in the guide groove (206), when the closing cover (201) slides and covers the bottom of the storage bin (2), the bottom of the storage bin (2) can be closed to store items, and after the closing cover (201) slides out of the storage bin (2) and covers the upper end of the battery bin (1), the battery bin (1) and the storage bin (2) can be connected, so that the wires in the battery bin (1) can extend into the storage bin (2) and be connected to the storage batteries placed in the storage bin (2); Wherein, a C-shaped plate (203) is fixedly mounted on one end of the storage bin (2), a groove formed on one end of the C-shaped plate (203) is connected to the storage bin (2), and a locking mechanism (3) is rotatably mounted in the groove of the C-shaped plate (203); The locking mechanism (3) can fit into a first limiting groove (205) and a second limiting groove (207), wherein the first limiting groove (205) and the second limiting groove (207) are formed on the upper surfaces of the extension plate (204) and the closing cover (201), and the extension plate (204) is fixedly mounted on one end of the closing cover (201); The locking mechanism (3) comprises a connecting column (301), both sides of which are provided with a rotation groove (302), the inner ring wall of the rotation groove (302) is fixedly connected with a spring (304), the central part of the spring (304) is fixedly connected with a rotating column (303), the rotating column (303) is rotatably mounted in the rotation groove (302), a pressing plate (307) is fixedly mounted on the upper end of the outer surface of the rotating column (303), a buckling plate (306) is fixedly mounted on the lower end of the outer surface of the rotating column (303), and a clamping block (305) is fixedly mounted on the lower surface of the buckling plate (306), and the rotating column (303) can drive the clamping block (305) to fit into the first limiting groove (205) and the second limiting groove (207) through the torsional force of the spring (304).

2. The electric bicycle with an expandable battery compartment according to claim 1, characterized in that: After the storage battery in the battery compartment (1) is connected to the storage battery expanded and added in the storage compartment (2), the wires can extend from the wiring port (202) to be electrically connected to the motor of the electric bicycle body; the wiring port (202) is provided at one end of the storage compartment (2).

3. The electric bicycle with an expandable battery compartment according to claim 2, characterized in that: When the closing cover (201) covers the bottom of the storage bin (2), the locking mechanism (3) will fit and snap into the first limiting groove (205); when the closing cover (201) slides out of the storage bin (2) to cover the upper end of the battery bin (1) and connects the battery bin (1) with the storage bin (2), the locking mechanism (3) will fit and snap into the second limiting groove (207).

4. The electric bicycle with an expandable battery compartment according to claim 3, characterized in that: When the closing cover (201) slides out from the storage compartment (2) and covers the upper end of the battery compartment (1), the extension plate (204) at one end of the closing cover (201) is inserted into the support groove (101), and the support groove (101) is opened at one end of the battery compartment (1).

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