CN211139505U - Built-in battery type power-assisted bicycle saddle pipe - Google Patents

Abstract

The utility model relates to a built-in battery formula moped saddle pipe, including the saddle pipe and arrange the intraductal battery pack of saddle in, characterized by: the saddle pipe lower extreme sliding connection has end cap under the saddle pipe, and end cap lower extreme rigid coupling has the buffering stopper under the saddle pipe, end cap shape is the step shaft under the saddle pipe, step shaft small circle and saddle pipe sliding fit are equipped with fixed screw hole on the outer circumference of small circle, and the saddle pipe lateral wall is equipped with fixed screw hole, is equipped with the key hole that runs through outside power cord under the saddle pipe on the end cap, buffering stopper lateral wall and upper surface are equipped with the right angle recess that contains outside power cord, outside power cord and battery output end connection of electric lines. Has the advantages that: the utility model discloses thoroughly improved electric bicycle's security, reduced battery assembly's spare part, made the mounting process simpler, stopped because of the operation carelessness, lead to the not hard up phenomenon of wire solder joint to take place. The appearance is brief, rich in the aesthetic feeling, and installation and maintenance are all very convenient, are fit for installing in various electric bicycle.

Description

Built-in battery type power-assisted bicycle saddle pipe

Technical Field

The utility model belongs to the bicycle field especially relates to a built-in battery formula moped saddle pipe.

Background

The applicant also proposes several electric bicycles with batteries placed in saddle tubes of bicycles in order to meet the national standard requirements, and discloses a built-in battery assembly for moped with a patent authorization number Z L2019205496105, which comprises a saddle tube and a battery assembly placed in the saddle tube, and is characterized in that the lower end of the saddle tube is connected with a saddle tube lower plug in a threaded manner, a buffer plug is fixedly connected in a central groove of the saddle tube lower end, a saddle tube upper plug is fixedly connected with the saddle tube upper plug, a central hole is formed in the center of the saddle tube upper plug, a saddle support seat is fixedly connected with the side wall of the saddle tube upper plug to form an integral structure, a cover plate is connected to the upper end of the saddle tube through a screw, a charging switch socket and a power switch socket are fixedly connected to the upper end of the saddle tube, and a protection plate plug is fixedly connected to a side hole of the saddle tube upper plug of the saddle tube, and a cylindrical discharge switch socket and a side hole are fixedly connected to a side hole of the battery plug.

Patent document publication No. 206579749U discloses a novel electric bicycle saddle pipe of group battery is equipped with, including a pipe body, be equipped with the group battery in the body, there are saddle head and screw cap at the both ends of body through threaded connection respectively, the overhead connecting hole and the mouth that charges of being equipped with of saddle pipe, install the ball lid on the screw cap, be connected with the output line on the ball lid, the body is close to both ends department and all is equipped with sealing ring, equal cartridge has sealed end cap in the sealing ring, sealed end cap's both ends are equipped with down end cap and last end cap respectively, the end cap cartridge is in sealing ring down, all be equipped with the conical surface on saddle head and the screw cap, be equipped with perfect seal structure. The structure of the known art presents a number of problems in process fabrication. The process of the installation process is as follows: the sealing ring, the threaded cover and the ball cover are sequentially sleeved into the output line, the output line is welded with the output end of the battery through a wire, the sealing ring is placed into the lower end of the tank body, the threaded cover is screwed in, the threaded cover can drive the output line to rotate in the screwing-in process, the connecting welding point of the wire and the battery is very easy to loosen, and the quality hidden danger of node virtual connection of the battery is caused. The prior art not only increases the production cost, but also has serious hidden quality troubles.

The market demands to provide a saddle pipe of a built-in battery type power-assisted bicycle with lower production cost and beautiful appearance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned technique, and provide a built-in battery formula helping hand bicycle saddle pipe, arrange the battery in the intraductal improvement structure of saddle, make mounting process simpler, stop because of the operation carelessness, lead to the not hard up phenomenon of wire solder joint to take place.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: the utility model provides a built-in battery formula helping hand bicycle saddle pipe, includes the saddle pipe and arranges the battery pack in the saddle pipe in, and saddle pipe upper end rigid coupling has end cap on the saddle pipe, end cap central authorities are equipped with the centre bore on the saddle pipe, and its lateral wall rigid coupling has the saddle supporting seat and constitutes overall structure, there is the apron on the saddle pipe end cap top through bolted connection, the rigid coupling has charging socket and switch on the apron, charging socket and switch and battery pack's protection shield circuit connection, characterized by: the saddle pipe lower extreme sliding connection has end cap under the saddle pipe, and end cap lower extreme central authorities are equipped with central recess under the saddle pipe, and the rigid coupling has the buffering stopper in the central recess, the end cap shape is the step shaft under the saddle pipe, and step shaft small circle and saddle pipe sliding fit are equipped with fixed screw hole on the outer circumference of small circle, are equipped with the fixed screw hole rather than matching on the saddle pipe lateral wall and the fixed screw hole correspondence position, are equipped with the key hole that runs through outside power cord under the saddle pipe on the end cap, buffering stopper lateral wall and upper surface are equipped with the right angle recess that contains outside power cord, outside power cord and battery output end connection of electric lines.

And the upper end and the lower end of the battery pack in the inner cavity of the saddle pipe are respectively provided with a battery lower side cushion pad and a battery upper side cushion pad.

And a sealing ring is sleeved on the saddle pipe lower plug stepped circular truncated cone.

The external power line is connected with the battery output end through a wiring plug, and the output end of the external power line adopts an aviation plug.

The end of the buffer plug is hemispherical, and the buffer plug is fixedly connected with the saddle pipe lower plug through a fixing screw.

Has the advantages that: compared with the prior art, the utility model discloses thoroughly improved electric bicycle's security, reduced battery assembly's spare part, made the mounting process simpler, stopped because of the operation carelessly, lead to the not hard up phenomenon of wire solder joint to take place. The perfect sealing structure effectively protects the battery, prolongs the service life of the battery, has compact structure, simple appearance, aesthetic feeling and very convenient installation and maintenance, and is suitable for being installed on various electric bicycles.

Drawings

FIG. 1 is a sectional view of the structure of the present invention;

figure 2 is a perspective view of the present invention assembly;

fig. 3 is a perspective exploded view of the present invention;

FIG. 4 is an enlarged partial schematic view of the connection of the saddle tube lower plug and the buffer plug to the external power cord;

fig. 5 is a bottom view of fig. 4.

In the figure: 1. the device comprises a saddle pipe, 1-1 parts of saddle pipe, a side threaded hole of the saddle pipe, 2 parts of a lower plug of the saddle pipe, 2-1 parts of a key hole, 2-2 parts of a fixing screw hole, 2-3 parts of a central groove, 3 parts of a sealing ring, 4 parts of a buffer plug, 4-1 parts of a right-angle groove, 5 parts of an upper plug of the saddle pipe, 5-1 parts of a saddle supporting seat, 5-2 parts of a central hole, 6 parts of a cover plate, 6-1 parts of a charging port hole, 6-2 parts of a power switch hole, 7 parts of a lower buffer pad of a battery, 8 parts of an upper buffer pad of the battery, 9 parts of a battery assembly, 10 parts of a charging plug, 11 parts of a power switch, 12 parts of a wiring plug, 13 parts of an external power line, 14 parts of an aviation plug female head, 15 parts of a power indication lamp.

Detailed Description

The following detailed description of the preferred embodiments is provided for the purpose of illustrating the invention.

Example 1

Detailed description referring to the attached drawings 1-4, the embodiment provides a built-in battery type moped saddle pipe, which comprises a saddle pipe 1 and a battery assembly 9 arranged in the saddle pipe, wherein the upper end of the saddle pipe is fixedly connected with a saddle pipe upper plug 5, the center of the saddle pipe upper plug is provided with a central hole 5-2, the side wall of the saddle pipe upper plug is fixedly connected with a saddle support seat 5-1 to form an integral structure, the top end of the saddle pipe upper plug is connected with a cover plate 6 through a screw, the cover plate is fixedly connected with a charging socket 10 and a power switch 11, the charging socket and the power switch are connected with a protection board circuit (not shown) of the battery assembly, the lower end of the saddle pipe is slidably connected with a saddle pipe lower plug 2, the center of the lower end of the saddle pipe is provided with a central groove 2-3, a buffer plug 4 is fixedly connected in the central groove, the lower plug of, the outer circumference of the small circle is provided with a fixed screw hole 2-2, the side wall of the saddle pipe is provided with a fixed screw hole 1-1 matched with the fixed screw hole at the position corresponding to the fixed screw hole, the lower end cap of the saddle pipe is provided with a key hole 2-1 penetrating through an external power line, the side wall and the upper surface of the buffer plug are provided with a right-angled groove 4-1 containing the external power line, and the external power line is connected with a battery output end through a wire.

In the preferred scheme of the embodiment, the upper end and the lower end of the battery pack in the inner cavity of the saddle pipe are respectively provided with a battery lower side cushion 7 and a battery upper side cushion 8 for protecting the battery from impact.

In the preferred scheme of this embodiment, the saddle pipe lower plug stepped circular truncated cone is sleeved with a sealing ring 3.

In the preferred embodiment, the external power line is connected with the battery output end through the wiring plug 12, and the external power line output end adopts the aviation plug 14.

The preferable scheme of this embodiment is that the end of the buffer plug is hemispherical, and the buffer plug is fixedly connected with the saddle pipe lower plug through a fixing screw 18.

Working process and principle

The buffer plug fixedly connected in the central groove of the lower plug of the saddle pipe prevents the saddle pipe from sliding down to directly collide with the ground hard when a user adjusts the height of the saddle and unlocks the quick disassembly of the clamping saddle pipe, and the battery pack in the saddle pipe is impacted to cause welding damage between the electric cores.

The battery pack comprises 40 18650 electric cores and a battery protection board, the connection mode of the electric cores is that 10 electric cores are connected in series in 1 group, 4 groups are formed, then 3 groups are connected in parallel to form a 36V electric core group, or the battery pack comprises 39 18650 electric cores in series in 13 groups, 3 groups are connected in series, then 3 groups are connected in parallel to form a 48V electric core group, and the positive and negative electrodes of the electric core group are connected with the power supply input end of the battery protection board; the positive and negative poles of the charging socket are connected with the charging end of the battery protection board; two wires of the power switch are connected with the switch end of the battery protection board; the positive and negative poles of the discharging socket and the positive and negative poles of the power indicator lamp are connected in parallel with the discharging end of the battery protection plate, and the power indicator lamp is turned on when the discharging socket is electrified, so that the electrification condition of the discharging socket is obviously prompted to a user, and the discharging socket is in a power-off state when the plug is plugged and unplugged. When charging, the charger plug is inserted into the charging port, the battery core group is charged through the battery protection board, the charging current is limited within 2A, and the service life of the battery core is prevented from being influenced by the overlarge charging current. When power is needed, a power plug at the end of the power-assisted bicycle is inserted into a discharging socket at the upper end of the saddle pipe in a power switch off state, and the power switch is turned on after the power plug is inserted, so that the potential safety hazards such as fire caused by poor contact due to long time caused by spark corrosion of a contact piece instantly generated by contact between the power plug and a socket metal sheet are prevented. The discharge outlet and the plug connected to the controller via an external power cord are commercially available. The discharge outlet and plug 14 is a commercially available aviation plug assembly. The battery component adopts a commercial mature product. The terminal plug 12 is commercially available, and may be, for example: XT60 plug.

The assembly sequence is as follows:

1. coating adhesive on an upper plug of the saddle pipe, pressing the plug into the saddle pipe in an interference fit mode, and inserting the battery pack and the cushions on the upper side and the lower side of the battery pack into the saddle pipe;

2. fixing a cover plate above the saddle pipe upper plug through a screw to plug a central hole of the saddle pipe upper plug;

3. the power indicator lamp is fixed behind the upper plug of the saddle pipe through the power indicator lamp bracket, and the electric wire enters the saddle pipe through the side hole of the upper plug of the saddle pipe;

4. the front end of an external power line is pressed in along a right-angled groove on the side wall and the upper surface of a buffer plug, the front end of the external power line penetrates into a key hole of a saddle pipe lower plug, a wiring plug is welded on a lead at the front end of the external power line and a battery output end lead respectively, and the external power line and the battery output end lead are spliced after being assembled;

5. sleeving a sealing ring at a tool withdrawal groove at the root part of a stepped platform of a lower saddle pipe plug, inserting the lower saddle pipe plug assembly installed in the step 5 into the lower end of a saddle pipe and pressing tightly to compress the root part of a thread so as to achieve a good sealing effect, screwing a lower plug fixing screw 17 into a fixing screw hole in the side wall of the saddle pipe, aligning the fixing screw hole on the lower saddle pipe plug, screwing the fixing screw 17, and fixedly connecting the lower saddle pipe plug and the saddle pipe, wherein the fixing screw is an M4 standard screw, and the fixing screw holes are crossed in a cross shape and are four in number;

6. the saddle pipe of the mounted built-in battery pack is inserted into a middle pipe of the bicycle, and an aviation plug of an external power line is connected with a controller arranged in a bicycle beam to form a power supply system of the bicycle.

The above detailed description of the bicycle seat tube with built-in battery assist, which is described with reference to the embodiments, is intended to be illustrative and not restrictive, and several embodiments may be shown and described without departing from the spirit and scope of the present invention.

Claims (5)

1. The utility model provides a built-in battery formula helping hand bicycle saddle pipe, includes the saddle pipe and arranges the battery pack in the saddle pipe in, outside power cord, saddle pipe upper end rigid coupling have a saddle pipe on the end cap, end cap central authorities are equipped with the centre bore on the saddle pipe, and its lateral wall rigid coupling has saddle supporting seat and constitutes overall structure, there is the apron on the saddle pipe end cap top through bolted connection, the rigid coupling has charging socket and switch on the apron, charging socket and switch and battery pack's protection shield circuit connection, characterized by: the saddle pipe lower extreme sliding connection has end cap under the saddle pipe, and end cap lower extreme central authorities are equipped with central recess under the saddle pipe, and the rigid coupling has the buffering stopper in the central recess, the end cap shape is the step shaft under the saddle pipe, and step shaft small circle and saddle pipe sliding fit are equipped with fixed screw hole on the outer circumference of small circle, are equipped with the fixed screw hole rather than matching on the saddle pipe lateral wall and the fixed screw hole correspondence position, are equipped with the key hole that runs through outside power cord under the saddle pipe on the end cap, buffering stopper lateral wall and upper surface are equipped with the right angle recess that contains outside power cord, outside power cord and battery output end connection of electric lines.

2. The battery-built-in bicycle seat tube of claim 1, wherein: and the upper end and the lower end of the battery pack in the inner cavity of the saddle pipe are respectively provided with a battery lower side cushion pad and a battery upper side cushion pad.

3. The battery-built-in bicycle seat tube of claim 1, wherein: and a sealing ring is sleeved on the saddle pipe lower plug stepped circular truncated cone.

4. The battery-built-in bicycle seat tube of claim 1, wherein: the external power line is connected with the battery output end through a wiring plug, and the output end of the external power line adopts an aviation plug.

5. The battery-built-in bicycle seat tube of claim 1, wherein: the end of the buffer plug is hemispherical, the buffer plug is fixedly connected with the saddle pipe lower plug through a fixing screw, and the buffer plug is made of polyamide or rubber materials.

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