CN217456216U - Instrument of electric power-assisted bicycle - Google Patents

Abstract

The utility model provides an electric bicycle's instrument relates to the electric bicycle field. The instrument of the electric power-assisted bicycle comprises: go up casing panel, the circuit board, the lower casing, the fixed bolster, the circuit board is accomodate in the inner space that last casing panel and lower casing joint formed, be provided with the multiunit through-hole on the last casing panel, multiunit through-hole corresponds position department on the circuit board and is provided with multiunit light-emitting module, in order to show electric bicycle's multiple state information respectively, be provided with the pencil hole on the lower casing, so that electric bicycle's pencil passes the back and is connected with the signal end electricity on the circuit board, casing fixed mounting is on the fixed bolster down, in order to pass through the fixed bolster with instrument fixed mounting on electric bicycle's preset position department. The utility model discloses a multiunit through-hole and multiunit light emitting module can realize electric bicycle's state information show to, the simple structure of instrument, the dismouting of being convenient for, easy to maintain can reduce cost.

Description

Instrument of electric power-assisted bicycle

Technical Field

The utility model relates to an electric power assisted bicycle technical field particularly, relates to an electric power assisted bicycle's instrument.

Background

The electric power-assisted bicycle is provided with the motor by taking the battery as an auxiliary power source, so that the electric power-assisted bicycle is provided with a power auxiliary system, the integration of manpower riding and motor power assisting can be realized, an instrument of the electric power-assisted bicycle can be switched on and off in an electric power assisting manner, and the state information of the electric power-assisted bicycle can be provided for a rider.

The instrument of the existing electric power-assisted bicycle comprises a shell, and a liquid crystal screen plate and a circuit board which are sequentially arranged inside the shell, wherein the shell is formed by connecting a transparent cover plate and a bottom shell in a buckling manner, the liquid crystal screen plate is inconvenient to assemble and disassemble the instrument, and the liquid crystal screen plate cannot be used for disassembling, assembling and overhauling internal elements of the instrument of the electric power-assisted bicycle when damaged, so that the cost is high.

Disclosure of Invention

An object of the utility model is to provide an electric bicycle's instrument to the liquid crystal screen panel is not convenient for instrument dismouting, the higher technical problem of cost in the instrument of electric bicycle among the solution prior art.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

in a first aspect, an embodiment of the present invention provides an instrument of an electric power-assisted bicycle, including an upper casing panel, a circuit board, a lower casing, and a fixing bracket, wherein the circuit board is accommodated in an inner space formed by the upper casing panel and the lower casing in a clamping manner;

a plurality of groups of through holes are formed in the upper shell panel, and a plurality of groups of light-emitting modules are arranged at positions on the circuit board corresponding to the plurality of groups of through holes so as to respectively display a plurality of state information of the electric power-assisted bicycle; the lower shell is provided with a wire harness hole so that a wire harness of the electric power-assisted bicycle passes through and then is electrically connected with a signal end on the circuit board;

the lower shell is fixedly installed on the fixed support, so that the instrument is fixedly installed at a preset position on the electric power-assisted bicycle through the fixed support.

Optionally, a key pressing groove is further formed in the upper shell panel, and a physical key is arranged at a position, corresponding to the key pressing groove, on the circuit board and used for controlling the functions of the electric power-assisted bicycle.

Optionally, the fixing bracket comprises: the supporting part, the one end of supporting part is provided with the installation department, with it is fixed to descend the shell mounting, the other end of supporting part is provided with first fixed orifices, in order to fix predetermine position department.

Optionally, the other end of the support portion is further provided with a groove hole communicated with the first fixing hole to cooperate with the first fixing hole to perform installation and fixation.

Optionally, two sidewalls of the groove hole are provided with: and the threaded through hole is used for locking through the threaded fixing piece.

Optionally, the fixing bracket further comprises: the lower shell is provided with an interface through hole, so that the interface component is electrically connected with the circuit board after passing through the interface component.

Optionally, the circuit board comprises: the interface component penetrates through the interface through hole to be electrically connected with the slave circuit board.

Optionally, the main circuit board is provided with: second fixed orifices and location shrinkage pool, be provided with the location bellying on the casing down, the location shrinkage pool with the location bellying matches the setting, and is right the second fixed orifices with the fixed position that corresponds on the casing down fixes a position, the second fixed orifices is used for will through the mounting that corresponds main circuit board is fixed on the casing down.

Optionally, the main circuit board is further provided with: the novel portable electronic device comprises a notch with a preset shape, wherein a first boss matched with the notch in shape is arranged on the lower shell, a second boss matched with the notch in shape is arranged in the upper shell panel, and the notch, the first boss and the second boss are matched to be arranged so as to adopt corresponding fixing pieces to fix the upper shell and the lower shell through the notch.

Optionally, a transparent waterproof film is disposed on the upper housing panel.

The utility model has the advantages that: the utility model provides a pair of electric bicycle's instrument, include: an upper shell panel, a circuit board, a lower shell and a fixed bracket, wherein the circuit board is accommodated in an inner space formed by the upper shell panel and the lower shell in a clamping way, a plurality of groups of through holes are arranged on the upper shell panel, a plurality of groups of light-emitting modules are arranged at the positions corresponding to the plurality of groups of through holes on the circuit board to respectively display a plurality of state information of the electric power-assisted bicycle, a wire harness hole is arranged on the lower shell to ensure that a wire harness of the electric power-assisted bicycle is electrically connected with a signal end on the circuit board after passing through the wire harness hole, the lower shell is fixedly arranged on the fixed bracket to fixedly arrange an instrument at a preset position on the electric power-assisted bicycle through the fixed bracket, the utility model discloses a plurality of groups of through holes are arranged on the upper shell panel and a plurality of groups of light-emitting modules are arranged at the positions corresponding to the plurality of groups of through holes on the circuit board, and the state information display of the electric power-assisted bicycle can be realized by controlling the plurality of groups of light-emitting modules, compared with the technical scheme who uses the liquid crystal screen board to demonstrate among the prior art, the utility model discloses well multiunit through-hole and multiunit light emitting module's structure is simpler, the instrument dismouting of being convenient for electric bicycle's instrument easy to maintain, and, the cost is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an instrument of an electric power-assisted bicycle according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another instrument of an electric power assisted bicycle according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a fixing bracket according to an embodiment of the present invention;

fig. 4 is a schematic structural view of another instrument of an electric bicycle according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of an electric bicycle according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another instrument of an electric power assisted bicycle according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another instrument of an electric power assisted bicycle according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of an upper housing panel according to an embodiment of the present invention.

Icon: an upper case panel 100; a circuit board 200; a lower case 300; a fixing bracket 400; fault/speed gear display through hole 110; a boost display through hole 120; a battery level display via 130; fault/speed gear light module 210; a boost lighting module 220; a battery level light-emitting module 230; a push key groove 140; physical keys 240; a support portion 410; a mounting portion 411; a first fixing hole 412; a threaded through bore 413; an interface section 420; an interface via 310; a main circuit board 250; the slave circuit board 260; the second fixing hole 251; a positioning recess 252; a positioning boss 320; a notch 253; a first boss 330; a second boss 150.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "first", "second", "third", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

Electric bicycle has possessed functions such as basic ride, helping hand, demonstration speed, demonstration battery voltage, record mileage, and current electric bicycle's actuating system generally includes: instruments, controllers, batteries, sensors, motors, and the like. The common instrument of the electric power-assisted bicycle is composed of a shell, a liquid crystal screen board and a circuit board, wherein the liquid crystal screen board and the circuit board are sequentially arranged in the shell from top to bottom, the liquid crystal screen board enables the instrument not to be conveniently assembled and disassembled, the maintenance is not easy, and the cost is high.

In order to improve the maintainability of electric bicycle's instrument to reduce cost, the technical scheme of the utility model, provide an electric bicycle's instrument, this electric bicycle's instrument does not use the liquid crystal screen board, but realizes electric bicycle's state information show through-hole and light-emitting module, compares in the liquid crystal screen board, and the structure of through-hole and light-emitting module is simpler, the dismouting of being convenient for, easy to maintain to, can reduce cost.

The following explains an instrument of an electric power-assisted bicycle provided by an embodiment of the present invention with reference to a plurality of specific examples. Fig. 1 is a schematic structural view of an instrument of an electric power-assisted bicycle provided in an embodiment of the present invention, as shown in fig. 1, the instrument of the electric power-assisted bicycle includes: upper case panel 100, circuit board 200, lower case 300, fixing bracket 400.

The circuit board 200 is received in an inner space formed by the upper case panel 100 and the lower case 300 being snapped. In the embodiment of the present invention, the Circuit Board 200 may be a Printed Circuit Board (PCB), which can realize electrical connection between components in the Circuit.

A plurality of through holes are formed in the upper case panel 100, and a plurality of light emitting modules are disposed at positions corresponding to the plurality of through holes on the circuit board 200 to respectively display a plurality of status information of the electric bicycle. For example, in the embodiment of the present invention, three sets of through holes may be disposed on the upper housing panel 100, which are the failure/speed gear display through hole 110, the boosting display through hole 120, and the battery power display through hole 130, and three sets of light emitting modules are disposed at corresponding positions of the three sets of through holes on the corresponding circuit board 200, which are the failure/speed gear light emitting module 210, the boosting light emitting module 220, and the battery power light emitting module 230, respectively, and three light emitting modules in the three sets of through holes may be used as a status display of the electric power-assisted bicycle.

The embodiment of the present invention provides a fault/speed gear display through hole 110 can be a plurality of through holes with different sizes, and is arranged in a shape similar to a right trapezoid. For example, the fault/speed gear display through hole 110 may be five through holes of different sizes. When the electric power-assisted bicycle is in a normal riding state, the corresponding fault/speed gear light-emitting module 210 can display the size of the current gear according to the speed gear information, at the moment, five through holes with different sizes correspond to five speed gears, and the corresponding fault/speed gear light-emitting module 210 is in a continuous light-emitting state; when the electric power-assisted bicycle is in a fault state, the corresponding fault/speed gear light-emitting module 210 can display fault information, at the moment, five through holes with different sizes correspond to five fault information, namely a rotating handle fault, a Hall motor fault, an under-voltage fault, an over-voltage fault and a communication fault, and the corresponding fault/speed gear light-emitting module 210 is in a flashing light-emitting state.

In the embodiment of the present invention, the boosting display through hole 120 may be a circular through hole, when the motor of the electric power bicycle is boosting, the boosting light-emitting module 220 corresponding to the boosting display through hole 120 is in a continuous light-emitting state, and when the motor of the electric power bicycle is not boosting, the boosting light-emitting module 220 corresponding to the boosting display through hole 120 is in a light-off state.

In the embodiment of the present invention, the battery power display through hole 130 can be a plurality of through holes with the same size. For example, the battery level display via 130 may be four vias having the same size. The battery power level emitting module 230 may display the current power level according to the battery power level information.

The embodiment of the present invention provides an embodiment, the light emitting module that each through hole corresponds can be a light-emitting diode (LED) module, and each LED module includes a LED and a resistor connected in series with the LED, wherein the resistor connected in series can make the electric current reach within the rating of the LED, protect the LED, and improve the life-span of the LED.

The lower housing 300 is provided with a wire harness hole, so that a wire harness of the electric power-assisted bicycle passes through and is electrically connected with the signal terminal on the circuit board 200. For example, a wire connected to the battery is electrically connected to a signal terminal on the circuit board 200, so that the battery power light-emitting module 230 can display the current power according to the information of the battery power; the last line that exists and be connected with the motor of electric bicycle is connected with the signal end electricity on the circuit board 200 for boosting light emitting module 220 shows electric bicycle's boosting state according to the state of motor, and above-mentioned electric bicycle's line is the example only, still has other lines and is connected with the signal end electricity on the circuit board 200 the embodiment of the utility model provides an do not do specific restriction, wherein, many lines can constitute the pencil and be connected with circuit board 200 through the pencil hole.

The lower case 300 is fixedly installed on the fixing bracket 400 to fixedly install the meter at a predetermined position on the electric bicycle through the fixing bracket 400. The instrument needs the installation to be fixed on electric bicycle for the user can look over electric bicycle's state information. The embodiment of the utility model provides an in, can be through fixed bolster 400 with instrument fixed mounting in electric bicycle's handlebar department, can also fixed mounting in other positions, convenience of customers look over electric bicycle's state information can.

The utility model provides a pair of electric power-assisted bicycle's instrument sets up the multiunit through-hole on last casing panel and the multiunit through-hole corresponds position department and is provided with multiunit light-emitting module on the circuit board, through controlling multiunit light-emitting module, can realize electric power-assisted bicycle's state information show, compares with the technical scheme that uses the liquid crystal screen board to carry out the show among the prior art, the utility model discloses well multiunit through-hole and multiunit light-emitting module's structure is simpler, the instrument dismouting of being convenient for electric power-assisted bicycle's instrument easy to maintain to, the cost is reduced.

Further, based on the structure of the meter of the electric bicycle shown in fig. 1, a further explanation will be made on the meter of the electric bicycle through possible implementation examples of the upper case panel. Fig. 2 is a schematic structural view of another instrument of an electric power-assisted bicycle provided in an embodiment of the present invention, as shown in fig. 2, a key groove 140 is further provided on the upper casing panel 100, and a physical key 240 is provided at a position corresponding to the key groove 140 on the circuit board for controlling the function of the electric power-assisted bicycle.

The embodiment of the present invention provides a user can realize the functions of starting, shutting down, accelerating, decelerating, boosting, etc. of the electric power-assisted bicycle by operating the physical keys 240 on the key slot 140 and the circuit board on the upper housing panel 100.

For example, in the embodiment of the present invention, two key slots 140 may be disposed on the upper housing panel 100, and correspondingly, two physical keys 240 may be disposed on the circuit board 200, wherein one of the physical keys may be denoted as "+" and the other physical key may be denoted as "-". When the user presses the '+' key for a long time, the instrument is switched between power-on and power-off, for example, if the current instrument is in the power-off state, the instrument is switched to power-on when the '+' key is pressed for a long time; the user presses the key for a long time to indicate that the boosting function is started; a user presses a plus key for a short time to indicate that the electric power-assisted bicycle starts an acceleration function; a user presses a key for a short time to indicate that the electric power-assisted bicycle starts a speed reduction function; when the user double-clicks the "-" key, the meter will switch between on and off of the light emitting module, for example, if the current state of the light emitting module is on, the state of the light emitting module is off when the "-" key is double-clicked. The operation and corresponding function of the physical key are only examples, and of course, other operations and corresponding functions may also be possible, and the embodiment of the present invention is not limited specifically.

In the embodiment of the present invention, the shape of the key groove 140 may be circular, and meanwhile, the key groove provided on the upper casing panel 100 may accommodate the silica gel key therein for the user to operate.

In the embodiment of the present invention, the transparent waterproof film is disposed on the upper casing panel 100, and the working state of the plurality of groups of light emitting modules can be observed through the transparent waterproof film, so as to improve the waterproof performance of the meter of the electric power assisted bicycle.

The embodiment of the utility model provides an in, still be provided with on the upper casing panel and press the keyway, the key groove corresponds position department on the circuit board and is provided with the physics button, and the user can control functions such as electric power bicycle's start, shutdown, acceleration, speed reduction, boosting through operating the physics button.

Further, based on the structure of the meter of the electric power-assisted bicycle shown in fig. 1, a further explanation is provided for the meter of the electric power-assisted bicycle by using a possible implementation example of the fixing bracket. Fig. 3 is a schematic structural diagram of a fixing bracket according to an embodiment of the present invention, as shown in fig. 3, the fixing bracket 400 includes: a support portion 410.

One end of the supporting portion 410 is provided with a mounting portion 411 to be fixedly mounted with the lower housing 300. For example, the end of the supporting portion 410 close to the lower housing 300 may be provided with two screw holes, correspondingly, the corresponding position of the lower housing 300 may be provided with two through holes, and the screw hole in the supporting portion 410 and the through hole in the lower housing 300 may be fixedly connected through a screw, a screw or a stud, and then the supporting portion 410 and the lower housing 300 may be fixedly installed through the installation portion 411.

The other end of the supporting portion 410 is provided with a first fixing hole 412 to be fixed at a predetermined position. The instrument of the electric bicycle can be fixedly installed at a predetermined position on the electric bicycle through the first fixing hole 412 of the support portion 410. For example, the corresponding predetermined position in the first fixing hole 412 may be a handlebar of the electric bicycle.

When the meter of the electric power-assisted bicycle is fixedly installed at a preset position on the electric power-assisted bicycle, a vehicle component at the preset position needs to be inserted into and fixed in the first fixing hole 412, and therefore, the other end of the supporting portion 410 is further provided with a groove hole communicated with the first fixing hole 412 to be installed and fixed in cooperation with the first fixing hole 412. For example, if the vehicle component at the preset position is a handlebar, the user needs to press the meter of the electric bicycle onto the handlebar through the groove hole communicating with the first fixing hole 412, so that the handlebar enters the first fixing hole 412 through the groove hole communicating with the first fixing hole 412.

After the vehicle component at the preset position is inserted into the first fixing hole 412, the vehicle component needs to be fixed, and therefore, two side walls of the groove hole communicated with the first fixing hole 412 are provided with: a threaded through hole 413 to allow locking by a threaded fastener. For example, after the handlebar enters the first fixing hole 412 through the groove hole communicated with the first fixing hole 412, the relative position of the meter and the handlebar may be changed, and at this time, by inserting the threaded fixing member into the threaded through hole, the relative position of the first fixing hole 412 and the handlebar is not changed through the threaded fixing member, that is, the first fixing hole 412 and the handlebar may be locked, so that the electric power-assisted bicycle is fixed at the preset position.

In the embodiment of the utility model, the fixed bolster includes: the supporting part, the one end of supporting part is provided with the installation department to fixed with lower casing installation, the other end of supporting part is provided with first fixed orifices, in order to fix and predetermine position department, the other end of supporting part still is provided with the recess hole with first fixed orifices intercommunication, with the first fixed orifices of cooperation installation fixed, the both sides wall in recess hole is provided with: the screw thread through hole to lock through threaded fixing spare, recess hole, screw thread through hole and threaded fixing spare can cooperate first fixed orifices, with instrument fixed mounting in electric bicycle's preset position department.

Further, on the basis of the structure of the fixing bracket shown in fig. 3, a meter of the electric power assisted bicycle is further explained by a possible implementation example of the fixing bracket. Fig. 4 is a schematic structural view of another instrument of the electric power-assisted bicycle provided by the embodiment of the present invention, and fig. 5 is a schematic perspective view of the electric power-assisted bicycle provided by the embodiment of the present invention, as shown in fig. 4 and 5, the fixing bracket 400 further includes: the interface member 420 is connected to the supporting portion 410, and the lower housing 300 is provided with an interface through hole 310, so that the interface member 420 is electrically connected to the circuit board 200 after passing through.

The interface part 420 comprises an interface element and an interface fixing piece for accommodating the interface element, one end of the interface part 420, which is far away from the lower shell, is provided with a connecting part with the same size as the threaded through hole and an interface outer cover connected with the connecting part, the connecting part can be placed into the threaded through hole, and the connecting part can be fixed in the threaded through hole through the thread fixing piece. The user can open the interface enclosing cover of being connected with adapting unit and insert external device's charging wire, and the one end of interface unit 420 that has adapting unit makes external device (like the cell-phone) connect interface element through opening the interface enclosing cover, can charge to external device, and when external device charged, adapting unit fixed in the screw thread through-hole for can not fall ground when the interface enclosing cover was opened, convenience of customers used.

The circuit board 200 includes: a main circuit board 250 and a slave circuit board 260, wherein a plurality of sets of light emitting modules are disposed on the main circuit board 250, and an interface member 420 is electrically connected to the slave circuit board 260 through an interface through-hole 310. The master circuit board 250 and the slave circuit board 260 are electrically connected. The plurality of sets of light emitting modules and the interface component 420 may also be disposed on the same circuit board at the same time, which is not limited in the embodiment of the present invention.

In the embodiment of the present invention, the interface component 420 may also be referred to as a usb (universal Serial bus) interface component.

The embodiment of the utility model provides an in, the fixed bolster still includes: connect the interface unit of supporting part, be provided with the interface through-hole on the lower casing to be connected with the circuit board electricity after making interface unit pass, the circuit board includes: the interface component penetrates through the interface through hole to be electrically connected with the slave circuit board, so that a user can charge external equipment through the instrument.

Further, on the basis of the structure of the meter of the electric power-assisted bicycle shown in fig. 4, a further explanation is provided for the meter of the electric power-assisted bicycle by using a possible implementation example of the main circuit board. Fig. 6 is a schematic structural diagram of another instrument of an electric power-assisted bicycle according to an embodiment of the present invention, as shown in fig. 6, a main circuit board 250 is provided with: a second fixing hole 251 and a positioning concave hole 252, and a positioning convex part 320 is provided on the lower case 300.

The positioning concave hole 252 and the positioning convex portion 320 are matched to position the second fixing hole 251 and the corresponding fixing position on the lower housing 300. When the main circuit board 250 is placed in the lower case 300, the main circuit board 250 is positioned by matching the positioning concave hole 252 with the positioning convex part 320 of the corner of the lower case, so that the position of the main circuit board 250 in the horizontal direction can be fixed, that is, the main circuit board 250 can be fixed in the lower case 300, meanwhile, the second fixing hole 251 is matched with the corresponding fixing position on the lower case 300, at this time, the second fixing hole 251 is used for fixing the main circuit board 250 on the lower case 300 through the corresponding fixing member, so that the position of the main circuit board 250 in the vertical direction can be fixed, and at this time, the main circuit board 250 is completely fixed in the lower case 300. Wherein, the mounting that corresponds can be screw, screw or double-screw bolt etc. still can be for other mountings, is in the embodiment of the utility model provides a do not do specific restriction.

Alternatively, the second fixing hole 251 may be a screw hole, and the positioning concave hole 252 may be a positioning rectangular concave hole, and of course, other shapes and other types of holes may also be used, which is not limited in the embodiment of the present invention.

Optionally, the number of the second fixing holes 251 and the number of the positioning concave holes 252 may be two respectively, and the number of the positioning protrusions 320 disposed on the lower housing 300 is two, and may also be other numbers, which is not limited in the embodiment of the present invention.

The embodiment of the utility model provides an in, be provided with on the main circuit board: second fixed orifices and location shrinkage pool are provided with the location bellying on the casing down, and location shrinkage pool and location bellying match the setting to fix a position the fixed position that corresponds on second fixed orifices and the casing down, the second fixed orifices is used for fixing main circuit board on the casing down through the mounting that corresponds, has realized that the installation of main circuit board and casing down is fixed.

Further, on the basis of the structure of the meter of the electric power-assisted bicycle shown in fig. 6, a further explanation is provided for the meter of the electric power-assisted bicycle by using a possible implementation example of the main circuit board. Fig. 7 is a schematic structural diagram of another instrument of an electric power-assisted bicycle provided by the embodiment of the present invention, and fig. 8 is a schematic structural diagram of an upper housing panel provided by the embodiment of the present invention, as shown in fig. 7 and fig. 8, the main circuit board 250 is further provided with: a notch 253 with a preset shape, a first boss 330 with a shape matched with the notch is arranged on the lower shell 300, and a second boss 150 with a shape matched with the notch is arranged in the upper shell panel 100.

The notch 253, the first boss 330 and the second boss 150 are arranged in a matching manner, so that the upper shell and the lower shell are fixed through the notch by corresponding fixing pieces. The corresponding fixing member may be a screw, a bolt, or a stud, etc., and is not limited in the embodiment of the present invention.

Alternatively, the number of the notches 253, the first bosses 330, and the second bosses 150 may be two, respectively, but may also be other numbers, which is not limited in the embodiment of the present invention.

Alternatively, the notch 253 with the preset shape may be an arc-shaped notch, the first boss 330 may be a small circular boss, and the second boss 150 may be a small circular boss with a side, and of course, other shapes and other types of notches or bosses may also be possible, which is not limited in the embodiment of the present invention.

The embodiment of the utility model provides an in, still be provided with on the main circuit board: the notch of the preset shape is formed, the first boss matched with the notch in shape is arranged on the lower shell, the second boss matched with the notch in shape is arranged in the panel of the upper shell, and the notch, the first boss and the second boss are matched to be arranged, so that the upper shell and the lower shell can be fixedly connected through the notch by adopting the corresponding fixing piece.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An instrument for an electric power assisted bicycle, comprising: the circuit board is accommodated in an inner space formed by clamping the upper shell panel and the lower shell;

a plurality of groups of through holes are formed in the upper shell panel, and a plurality of groups of light-emitting modules are arranged at positions on the circuit board corresponding to the plurality of groups of through holes so as to respectively display a plurality of state information of the electric power-assisted bicycle; the lower shell is provided with a wire harness hole so that a wire harness of the electric power-assisted bicycle passes through and then is electrically connected with a signal end on the circuit board;

the lower shell is fixedly installed on the fixed support, so that the instrument is fixedly installed at a preset position on the electric power-assisted bicycle through the fixed support.

2. The meter of claim 1, wherein the upper housing panel further comprises a key slot, and the circuit board is provided with a physical button at a position corresponding to the key slot for controlling the functions of the electric bicycle.

3. The meter of an electric assist bicycle according to claim 1, wherein the fixing bracket includes: the supporting part, the one end of supporting part is provided with the installation department, with it is fixed to descend the shell mounting, the other end of supporting part is provided with first fixed orifices, in order to fix predetermine position department.

4. The meter of claim 3, wherein the other end of the supporting portion is further provided with a groove hole communicated with the first fixing hole to match the first fixing hole for mounting and fixing.

5. The meter of an electric bicycle according to claim 4, wherein the two side walls of the groove hole are provided with: and the threaded through hole is used for locking through the threaded fixing piece.

6. The meter of an electric assist bicycle of claim 3, wherein the fixing bracket further comprises: the lower shell is provided with an interface through hole, so that the interface component is electrically connected with the circuit board after passing through the interface component.

7. The meter of an electric assist bicycle of claim 6, wherein the circuit board comprises: the interface component penetrates through the interface through hole to be electrically connected with the slave circuit board.

8. The meter of an electric bicycle according to claim 7, wherein the main circuit board is provided with: second fixed orifices and location shrinkage pool, be provided with the location bellying on the casing down, the location shrinkage pool with the location bellying matches the setting, and is right the second fixed orifices with the fixed position that corresponds on the casing down fixes a position, the second fixed orifices is used for will through the mounting that corresponds main circuit board is fixed on the casing down.

9. The meter for an electric bicycle according to claim 8, wherein the main circuit board further comprises: the novel portable electronic device comprises a notch with a preset shape, wherein a first boss matched with the notch in shape is arranged on the lower shell, a second boss matched with the notch in shape is arranged in the upper shell panel, and the notch, the first boss and the second boss are matched to be arranged so as to adopt corresponding fixing pieces to fix the upper shell and the lower shell through the notch.

10. The electric bicycle according to any one of claims 1 to 9, wherein a transparent waterproof film is provided on the upper case panel.

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