Battery box assembly for power-assisted bicycle

Abstract

The invention relates to a battery box assembly for a booster bicycle, which is applied to the field of storage batteries and comprises a battery box body and a battery box cover mounted at the upper end of the battery box body. The dual monitoring effect on the battery state in the battery box body and the charging state data of the battery box body can be effectively achieved, the synergistic effect of charging safety protection and charging state imaging is effectively achieved, the safety and portability of the battery box body in the application process are promoted, and on one hand, the battery box body can be prevented from being in a high-temperature charging state; on the one hand, the durability of the battery in the battery box body is prolonged, the charging damage of the battery in the battery box body is reduced, the charging safety is effectively ensured, on the other hand, the transparency and identifiability of the state of the battery box body in the charging process can be realized, a vehicle owner can conveniently judge the charging process according to image data, and timely and effective countermeasures can be generated in the charging process.

Description

Technical Field

[0001] The present invention relates to a battery box assembly, in particular to a battery box assembly for power-assisted bicycles applied in the field of storage batteries. Background Art

[0002] The power-assisted bicycle is a new type of transportation that combines traditional bicycles with electric technology. It not only retains the human-powered riding characteristics of the bicycle, but also provides additional power support through the motor, making riding easier. The power-assisted bicycle battery box assembly is a component that integrates batteries, control systems and fixing devices to provide power for electric power-assisted bicycles. It usually consists of a frame tube, a battery box, and related mounting and fixing structures. During the charging process of the battery in the power-assisted bicycle battery box, the battery temperature will rise. Charging the battery when the temperature is too high will make the battery performance and life very vulnerable. More seriously, it may also cause safety hazards such as battery fire.

[0003] In order to solve the problem of high battery temperature during charging, a battery box assembly for power-assisted bicycles on the market adopts a design of ventilation and heat dissipation and high-temperature power-off protection, and has a certain market share.

[0004] The specification of Chinese invention patent application CN112582706B discloses an overheat-proof lithium battery, including: a battery box, a lithium battery body, a power management module and a heat dissipation module. An inner protective box is arranged in the battery box, the lithium battery body is arranged in the inner protective box, the power management module is arranged in the battery box and is located at the front side of the inner protective box, and a charging interface is arranged at the front end of the battery box, and the heat dissipation module is arranged in the battery box and is located at the side of the inner protective box. The overheat-proof lithium battery includes a battery box, a lithium battery body, a power management module and a heat dissipation module, and has the advantages of simple structure and convenient use; the power management module is installed at the front side of the inner protective box, and the lithium battery body also supplies power to the heat dissipation module through the power management module, and the heat dissipation module extracts heat to keep the lithium battery body in a good working temperature range to avoid overheating of the lithium battery body, and the inner protective box provides explosion-proof protection for the lithium battery body, further improving the safety factor of the overheat-proof lithium battery.

[0005] The specification of Chinese invention patent application CN118899580A discloses a lithium battery with charging overheat protection function, including a support seat, a heat dissipation net, a socket, a charging block and a lithium battery. The left side of the support seat is connected to the socket, and the lithium battery is installed on the support seat. The charging block is installed on the left side of the lithium battery, and the charging block is located in the socket. The front and rear sides of the socket are connected to the heat dissipation net, and also include a shell and a protective cover, etc. The upper right side of the support seat is connected to the shell, and the upper left side of the support seat is connected to the protective cover. When charging overheats, the heat conduction block conducts heat, so that the expansion block expands due to heat and presses the contact switch, and the contact switch starts the motor, and the motor drives the heat conduction block to move to the left to push the plug of the charging line out of the charging block, disconnect in time to stop charging, and dissipate heat for the lithium battery through the blades.

[0006] Although existing technologies provide protection for batteries to a certain extent, in actual applications, these technologies fail to effectively display the charging status to car owners. This results in car owners being unable to accurately determine whether the charger is correctly connected to the battery, thereby ensuring the effectiveness of the charging connection; nor are they able to determine whether the battery is fully charged, thereby ensuring the effectiveness of charging control. Therefore, during the charging process, when the battery temperature is too high, how to ensure its safety and reduce the damage rate, while also making it easier for car owners to identify the charging status and ensure the transparency and identifiability of the charging process, has become an urgent problem to be solved. Summary of the invention

[0007] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is how to ensure the safety and reduce the damage rate when the battery temperature is too high during the charging process, while also making it convenient for car owners to identify the charging status and ensure the transparency and identifiability of the charging process.

[0008] In order to solve the above problems, the present invention provides a battery box assembly for a power-assisted bicycle, comprising a battery box body and a battery box cover installed on the upper end of the battery box body, a battery adapter is installed on the right side of the upper end of the battery box cover, a battery adapter is plugged into the upper end of the battery adapter, and a conversion box corresponding to the battery adapter is fixedly installed on the right side of the lower inner wall of the battery box cover;

[0009] The upper end of the conversion box is embedded with a conversion connection block connected to the battery conversion interface, the lower end of the conversion connection block is fixedly connected with a conversion guide block connected thereto, the lower end of the conversion guide block is fixedly connected with a conversion connecting block connected thereto, and the lower end of the conversion connecting block is fixedly connected with a conversion abutment block connected thereto;

[0010] A heat conduction block is embedded at the lower end of the conversion box, the lower end of the heat conduction block extends to the outside of the conversion box and is fixedly connected to a heat conduction sheet, the lower end of the heat conduction sheet extends into the battery box body and abuts against the battery disposed in the battery box body, the upper end of the heat conduction block extends to the inside of the conversion box and is fixedly connected to a temperature sensing trigger component, and the temperature sensing trigger component cooperates with the conversion abutment block;

[0011] A microprocessor is fixedly installed on the left side of the lower inner wall of the battery box cover, and a battery data processing unit is arranged in the microprocessor. The input end of the battery data processing unit is connected to the battery status monitoring unit, the power connection data acquisition unit and the battery power acquisition unit. The input end of the battery status monitoring unit is connected to the temperature sensing trigger component signal, the input end of the power connection data acquisition unit is connected to the conversion block signal through a wire, the input end of the battery power acquisition unit is connected to the battery signal arranged in the battery box body through a heat conduction block, the output end of the battery data processing unit is connected to the charging status indication unit, and the output end of the charging status indication unit is connected to the indicator light bead.

[0012] In the above-mentioned battery box assembly for power-assisted bicycles, the dual monitoring effect of the battery status in the battery box and the charging status data of the battery box can be effectively achieved, the synergy of charging safety protection and charging status imaging can be effectively achieved, and the transparency and recognizability of the charging process status of the battery box can be achieved.

[0013] As a supplement to the present application, the temperature-sensing trigger assembly includes a telescopic sleeve fixedly mounted on the upper end of the heat conduction block, and the telescopic sleeve is located in the conversion box, and the upper and lower ends of the telescopic sleeve are both embedded with trigger blocks, and the trigger block located on the upper side cooperates with the conversion abutment block, and the trigger block located on the lower side is fixedly abutted with the heat conduction block;

[0014] A charging contact piece matching the battery arranged in the battery box is embedded in the heat conduction block, and elastic conductive strips connecting the upper and lower trigger blocks are embedded in the left and right inner walls of the telescopic sleeve, and a temperature sensing strip is fixedly connected between the upper and lower trigger blocks.

[0015] As a supplement to the present application, the input end of the battery status acquisition unit is connected to the trigger block signal. When the telescopic sleeve is in the extended state, the two trigger blocks can realize the power-on state by converting the conduction of the connecting block, the guide block, the connecting block and the abutment block. After receiving the power-on state data, the battery status acquisition unit determines that it is in a safe temperature charging state at this time, and the battery data processing unit controls the indicator bead to emit a green light state display through the charging state indication unit;

[0016] When the telescopic sleeve is in a contracted state due to the action of the temperature-sensitive strip, the trigger block on the upper side does not abut against the conversion abutment block, and the two trigger blocks are in a power-off state. After receiving the power-off state data, the battery status acquisition unit determines that it is in a high-temperature protection power-off state at this time, and the battery data processing unit controls the indicator light bead to emit a yellow light status display through the charging status indication unit.

[0017] As a supplement to the present application, the elastic deformation direction of the telescopic sleeve is in the vertical direction, and the stiffness coefficient of the telescopic sleeve is less than or equal to the stiffness coefficient of the temperature sensing strip.

[0018] As a further improvement of the present application, the output end of the battery data processing unit is also connected to a forced cut-off unit, and the output end of the forced cut-off unit is connected to the temperature sensing strip signal. The temperature sensing strip is made of a composite of spiral memory metal wire and flexible electric heating wire.

[0019] As a further improvement of the present application, the input end of the battery data processing unit is also connected to a driving data collection unit, and the input end of the driving data collection unit is signal-connected to the battery power collection unit.

[0020] As a further improvement of the present application, a plurality of ventilation holes connected to the interior of the battery box body are opened at the lower end, an auxiliary cooling fan is fixedly connected to the lower end of the battery box body, the output end of the battery data processing unit is also connected to a cooling auxiliary unit, and the output end of the cooling auxiliary unit is connected to the auxiliary cooling fan signal.

[0021] In summary, through the cooperation of the conversion box, the temperature-sensing trigger component, the heat conduction sheet and the microprocessor, the dual monitoring effect of the battery status in the battery box and the charging status data of the battery box can be effectively achieved, and the synergy of charging safety protection and charging status imaging can be effectively achieved, which promotes the safety and portability of the battery box during application. On the one hand, it can avoid the battery box from being in a high-temperature charging state, extend the durability of the battery in the battery box, reduce the charging damage of the battery in the battery box, and effectively ensure charging safety. On the other hand, it can achieve transparency and recognizability of the charging process status of the battery box, which is convenient for the owner to judge the charging progress according to the display data, and can take timely and effective response measures to the charging process. In addition, through the transfer effect of the conversion box and the temperature-sensing trigger component, the continuous effectiveness of the connection between the battery adapter and the battery adapter can be guaranteed, and the wear or poor contact can be reduced, thereby effectively ensuring the safety of the battery box during the charging and discharging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an axonometric diagram of the battery box body and the battery box cover of the first and second embodiments of the present application;

[0023] Figure 2 A logic diagram of the coordination of each unit in the microprocessor of the first and second embodiments of the present application;

[0024] Figure 3 This is an axonometric diagram of the temperature-sensing trigger assembly and the conversion box in the first and second embodiments of the present application when in a safe temperature charging state;

[0025] Figure 4 This is a front cross-sectional view of the cooperation between the temperature sensing trigger component and the conversion box in the first and second embodiments of the present application when in a safe temperature charging state;

[0026] Figure 5 This is an axonometric diagram of the temperature sensing trigger component and the conversion box in the high temperature protection power-off state of the first and second embodiments of the present application;

[0027] Figure 6 This is a front cross-sectional view of the cooperation between the temperature sensing trigger component and the conversion box when the first and second embodiments of the present application are in a high temperature protection power-off state;

[0028] Figure 7 This is a bottom-up isometric view of the conversion box of the first and second embodiments of the present application when it is arranged in the battery box cover;

[0029] Figure 8 This is an exploded view of the battery box cover, conversion box and temperature-sensitive trigger assembly of the first and second embodiments of the present application;

[0030] Fig. 9 This is a front view of the battery box body of the first and second embodiments of the present application when it is set in the battery compartment of the power-assisted bicycle;

[0031] Fig.10 This is a front cross-sectional view of the battery box body of the second embodiment of the present application.

[0032] Description of the numbers in the figure:

[0033] 1 battery box body, 11 air vent, 2 battery box cover, 21 battery adapter, 3 battery adapter, 4 conversion box, 41 conversion connection insert, 42 conversion guide block, 43 conversion connecting block, 44 conversion abutment block, 5 temperature sensing trigger component, 51 telescopic sleeve, 52 trigger block, 53 temperature sensing strip, 6 heat conduction sheet, 61 heat conduction block, 7 auxiliary cooling fan. DETAILED DESCRIPTION

[0034] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0035] The first implementation method:

[0036] Figure 1 - Fig. 9 The battery box assembly for a power-assisted bicycle is shown, comprising a battery box body 1 and a battery box cover 2 installed on the upper end of the battery box body 1, a battery transfer port 21 is installed on the right side of the upper end of the battery box cover 2, a battery transfer connector 3 is plugged into the upper end of the battery transfer port 21, and a conversion box 4 is fixedly installed on the right side of the lower inner wall of the battery box cover 2 at a position corresponding to the battery transfer port 21;

[0037] The upper end of the conversion box 4 is embedded with a conversion connection block 41 connected to the battery conversion port 21, the lower end of the conversion connection block 41 is fixedly connected with a conversion guide block 42 connected thereto, the lower end of the conversion guide block 42 is fixedly connected with a conversion connecting block 43 connected thereto, and the lower end of the conversion connecting block 43 is fixedly connected with a conversion abutting block 44 connected thereto;

[0038] A heat conduction block 61 is embedded at the lower end of the conversion box 4. The lower end of the heat conduction block 61 extends to the outside of the conversion box 4 and is fixedly connected to a heat conduction sheet 6. The lower end of the heat conduction sheet 6 extends into the battery box body 1 and abuts against the battery disposed in the battery box body 1. The upper end of the heat conduction block 61 extends to the inside of the conversion box 4 and is fixedly connected to a temperature sensing trigger component 5. The temperature sensing trigger component 5 cooperates with the conversion abutment block 44.

[0039] A microprocessor is fixedly installed on the left side of the lower inner wall of the battery box cover 2, and a battery data processing unit is arranged in the microprocessor. The input end of the battery data processing unit is connected to the battery status monitoring unit, the power-on data acquisition unit and the battery power acquisition unit. The input end of the battery status monitoring unit is connected to the temperature sensing trigger component 5 signal, the input end of the power-on data acquisition unit is connected to the conversion block 43 signal through a wire, the input end of the battery power acquisition unit is connected to the battery signal arranged in the battery box body 1 through the heat conduction block 61, the output end of the battery data processing unit is connected to the charging status indication unit, and the output end of the charging status indication unit is connected to the indicator bead. Through the cooperation of the conversion box 4, the temperature sensing trigger component 5, the heat conduction sheet 6 and the microprocessor, the battery status in the battery box body 1 and the charging of the battery box body 1 can be effectively realized. The dual monitoring effect of status data effectively realizes the synergy of charging safety protection and charging status display, and promotes the safety and portability of the battery box 1 during application. On the one hand, it can prevent the battery box 1 from being in a high-temperature charging state, extend the durability of the battery in the battery box 1, reduce the charging damage of the battery in the battery box 1, and effectively ensure charging safety. On the other hand, it can achieve the transparency and recognizability of the charging process status of the battery box 1, which is convenient for the car owner to judge the charging progress according to the display data, and can take timely and effective response measures to the charging process. In addition, the conversion effect of the conversion box 4 and the temperature-sensing trigger component 5 can ensure the continuous effectiveness of the connection between the battery adapter 21 and the battery adapter 3, reduce the wear or poor contact, and thus effectively ensure the safety of the battery box 1 during the charging and discharging process.

[0040] Figure 3 - Figure 8The temperature sensing trigger assembly 5 is shown to include a telescopic sleeve 51 fixedly mounted on the upper end of the heat conduction block 61, and the telescopic sleeve 51 is located in the conversion box 4, and the upper and lower ends of the telescopic sleeve 51 are both embedded with trigger blocks 52, and the trigger block 52 located on the upper side cooperates with the conversion abutment block 44, and the trigger block 52 located on the lower side is fixedly abutted with the heat conduction block 61;

[0041] A charging contact piece that matches the battery arranged in the battery box body 1 is embedded in the heat conduction block 61, and elastic conductive strips connecting the upper and lower trigger blocks 52 are embedded in the left and right inner walls of the telescopic sleeve 51. A temperature sensing strip 53 is also fixedly connected between the upper and lower trigger blocks 52. Through the cooperation of the telescopic sleeve 51, the trigger block 52, the temperature sensing strip 53, the heat conduction piece 6 and the heat conduction block 61, while being able to collect and display the temperature in the battery box body 1, it is also possible to utilize the display action to achieve a safety protection effect on the charging process, and effectively reduce the damage caused by high-temperature charging.

[0042] Figure 1 - Fig. 9 It is shown that the input end of the battery status acquisition unit is connected to the trigger block 52 signal. When the telescopic sleeve 51 is in the extended state, the two trigger blocks 52 can realize the power-on state by switching the connection block 41, the conversion guide block 42, the conversion connecting block 43 and the conversion abutment block 44. After receiving the power-on state data, the battery status acquisition unit determines that it is in the safe temperature charging state at this time, and the battery data processing unit controls the indicator bead to emit green light status display through the charging state indication unit;

[0043] When the telescopic sleeve 51 is in a contracted state due to the action of the temperature-sensitive strip 53, the trigger block 52 on the upper side does not abut against the conversion abutment block 44, and the two trigger blocks 52 are in a power-off state. After receiving the data of the power-off state, the battery status acquisition unit determines that it is in a high-temperature protection power-off state at this time. The battery data processing unit controls the indicator light bead to emit a yellow light status display through the charging status indication unit. The setting of the battery status acquisition unit can effectively collect and transmit data on whether the battery is in a charging state, effectively promoting the intelligent function of the battery box body 1, while realizing the transparency and identifiability of the charging process while realizing its safety protection, facilitating the owner to identify the charging data, and increasing the portability of the battery box body 1.

[0044] Figure 1 - Fig. 9It is shown that the elastic deformation direction of the telescopic sleeve 51 is the vertical direction, and the stiffness coefficient of the telescopic sleeve 51 is less than or equal to the stiffness coefficient of the temperature-sensitive strip 53. The telescopic sleeve 51 can realize the safety control of the charging process by forming a structure to promote its automatic high-temperature protection disconnection function, and can also ensure the effectiveness of the joint extension effect of the telescopic sleeve 51 and the temperature-sensitive strip 53 when the temperature-sensitive strip 53 does not produce a high-temperature contraction effect through the effect of the stiffness coefficient, thereby ensuring the continuity and stability of the charging process.

[0045] Figure 2 It is shown that the output end of the battery data processing unit is also connected to a forced cut-off unit, and the output end of the forced cut-off unit is connected to the signal of the temperature sensing strip 53. The temperature sensing strip 53 is made of a composite of spiral memory metal wire and flexible electric heating wire. The cooperation between the forced cut-off unit and the temperature sensing strip 53 can provide effective emergency protection for the battery application process and further ensure the safety of the charging process.

[0046] Figure 2 and Figure 8 It is shown that when the battery adapter 3 and the battery adapter interface 21 cooperate to conduct charging and discharging to the battery disposed in the battery box body 1, the power-on data acquisition unit can transmit the status data to the battery data processing unit by judging the power on and off of the conversion block 43, and the battery data processing unit can also effectively judge the charging status and the battery status in combination with the power data transmitted by the battery power acquisition unit, and use the charging status indication unit to control the indicator bead to perform the display function;

[0047] When the conversion block 43 is powered on and the battery power is normal, it means that the battery is in normal state, the battery data processing unit does not send a control instruction to the charging state indicating unit, and the indicator light remains off;

[0048] When the conversion block 43 is in the power-off state and the battery power is in the normal state, it means that the connection between the battery adapter 3 and the battery adapter 21 is abnormal, and the battery data processing unit sends a control instruction to the charging state indicating unit, so that the indicator bead displays the red light state;

[0049] When the conversion block 43 is in the power-on state and the battery is in the low-power state, it means that the battery state is abnormal and the battery needs to be charged. The battery data processing unit sends a control instruction to the charging state indicating unit, so that the indicator bead displays the green light state;

[0050] When the conversion block 43 is in the power-off state and the battery is in the low-power state, it means that the battery is in the low-power protection state and the battery needs to be charged in time. The battery data processing unit sends a control instruction to the charging state indicating unit, so that the indicator bead displays the red light state;

[0051] When the conversion block 43 is in the power-on state and the battery is in the charging state, it means that the charging state is normal at this time, and the battery data processing unit sends a control instruction to the charging state indicating unit, so that the indicator bead displays the green light state;

[0052] When the conversion block 43 is in the power-on state and the battery power is in the saturated state, it means that the charging is completed at this time. The battery data processing unit sends a control instruction to the charging status indication unit to turn off the indicator light bead. Through the cooperation of the power-on data acquisition unit and the conversion block 43, the status data of the power-on during charging can be effectively collected. Then, through the cooperation of the battery data processing unit and the charging status indication unit, the charging status is displayed, so that the car owner can clearly and effectively obtain the charging data. While being able to protect the charging process, the transparency and recognizability of the charging process are effectively achieved.

[0053] Figure 1 - Fig. 9 It is shown that during the application of the battery box 1, the battery box 1 is placed in the battery compartment of the power-assisted bicycle, and then the battery in the battery box 1 is electrically connected to the entire power-assisted bicycle through the battery adapter 3, wherein a charging plug electrically connected to the battery adapter 3 is provided on the lower side of the left end of the battery compartment, which can cooperate with an external power supply to charge the battery in the battery box 1, and the indicator light bead can be installed on the outside of the charging plug, which can provide light display indication during the charging process of the owner, so that the owner can judge the charging status of the battery box 1 at this time according to the display data, effectively promoting the transparency and recognizability of the charging process status of the battery box 1 while protecting the battery box 1, so that the owner can judge the charging progress according to the display data, and can take timely and effective response measures to the charging process, and the battery arranged in the battery box 1 can provide power support for the microprocessor, thereby effectively realizing the collection, transmission and control of various data.

[0054] During the use of the battery box 1, the battery power collection unit can collect real-time data on the power of the battery in the battery box 1, and transmit the data to the battery data processing unit. The battery data processing unit can judge the battery status at this time according to the change of the battery power. When the battery is in a state of sufficient power, no control effect is produced. When the battery is in a state of lack of power, the charging status indicator unit controls the indicator bead to light up, producing a green light color display effect, and urging the owner to charge the battery box 1 in time;

[0055] After the car owner finds that the indicator light bead produces a green light display effect, the external power supply is used in time to charge the battery in the battery box body 1. Since the conversion block 43 is in a constant power-on state at this time, the power-on data acquisition unit transmits the power state data of the power-on to the battery data processing unit, and the battery power acquisition unit transmits the power change data to the battery data processing unit according to the change of the battery power in the battery. The battery data processing unit determines that the conversion block 43 is effectively powered and the charging is effective at this time based on the battery power change data, and maintains the green light display effect of the charging status indication unit to control the indicator light bead, so that the car owner can judge the effectiveness of the charging operation based on the display data; when the battery data processing unit determines that the conversion block 43 is powered on and the charging is effective based on the battery power change data Data, judged that the conversion block 43 is powered on effectively, but charging is invalid, then transmit control instructions to the charging status indication unit, so that the indicator light bead produces a red light display effect, reminding the owner that there is a charging abnormality at this time, so that the owner can check and repair the external power supply; when the conversion block 43 is powered off, the power connection data acquisition unit transmits the data to the power data processing unit, and the power data processing unit judges that there may be an abnormal connection problem between the battery adapter 3 and the battery adapter interface 21 at this time, and then controls the indicator light bead to produce a red light display effect through the charging status indication unit, so that the owner can check and maintain the battery adapter 3 and the battery adapter interface 21 to ensure the effectiveness of subsequent charging and discharging applications.

[0056] When the car owner does not find the green light display effect of the indicator bead in time, and the battery data processing unit determines that the battery is in a continuous power shortage state through the data obtained by the battery power collection unit, the battery data processing unit sends a cut-off command to the forced cut-off unit, so that the forced cut-off unit passes current into the temperature sensing strip 53, so that the flexible electric heating wire in the temperature sensing strip 53 is energized to generate heat, and acts on the spiral memory metal wire in the temperature sensing strip 53. After reaching the deformation temperature, the temperature sensing strip 53 produces thermal contraction deformation, and the telescopic sleeve 51 is driven to produce contraction deformation through the trigger block 52, so that the trigger block 52 located on the upper side is separated from the conversion abutment block 44, and the connection between the battery in the battery box body 1 and the conversion abutment block 44, the conversion connecting block 43, the conversion guide block 42, the conversion connection block 41, the battery adapter 3 and the battery adapter interface 21 are cut off. The battery in the battery box 1 can no longer produce a discharge effect to the unit structure in the power-assisted bicycle, so as to protect it and avoid damage caused by continuous underpowering. Due to the cut-off effect of battery discharge at this time, the conversion block 43 is powered off, and then the power-on data acquisition unit can receive the power-off data of the conversion block 43, and then transmit it to the battery data processing unit. On the one hand, the battery data processing unit can effectively judge the effectiveness of its forced discharge cut-off control through the power status data transmitted by the power-on data acquisition unit, and on the other hand, it can judge whether the subsequent owner will charge, and can maintain effectiveness in subsequent regulation. In addition, the battery data processing unit will also control the indicator bead to produce a red light display effect through the charging status indication unit, which can facilitate the owner to observe the status of the battery box 1 at this time and can charge the battery in a timely and effective manner.

[0057] After the car owner finds the red light display effect of the indicator light, he uses an external power supply to charge the battery in the battery box 1, and the conversion block 43 is powered on again through the external power supply connected to the battery adapter 3 and the battery adapter interface 21, and then transmits a signal to the power connection data acquisition unit. After the battery data processing unit receives the power connection data transmitted by the power connection data acquisition unit, the battery data processing unit controls the indicator light bead to produce a green light display effect through the charging status indication unit, so that the car owner can judge the effectiveness of the charging effect at this time according to the change in light color. At the same time, the battery data processing unit controls the forced cut-off unit to disconnect the current passing into the temperature sensing strip 53, and then under the subsequent heat dissipation effect, the temperature sensing strip 53 and the telescopic sleeve 51 produce recovery deformation, so that the telescopic sleeve 51 produces extension and recovery deformation, and the trigger block 52 located on the upper side is re-engaged with the conversion abutment block 44. The battery is then charged through the conduction of the battery adapter 3 and the battery adapter port 21, as well as the action of the charging contacts in the conversion connection block 41, the conversion guide block 42, the conversion connecting block 43, the trigger block 52 and the heat conduction block 61. The battery data processing unit can effectively determine whether the battery is charged normally according to the power change data transmitted by the battery power acquisition unit. After determining that the battery is charged normally, no other control action is taken. When it is determined that the battery power remains unchanged or continues to decrease and is in an abnormal charging state, the temperature sensing strip 53 is charged again through the forced cut-off unit to cut off the charging action at this time. The charging state indication unit is used to adjust the indicator light bead to produce a red light image to remind the owner of the abnormal charging at this time, so that the owner can repair the abnormality. The battery can also be protected by timely power-off to promote the safety of the charging process.

[0058] After the forced power-off due to low battery, the owner still does not perform charging operations until the battery is exhausted and the microprocessor loses power support, and the indicator light goes out, and the forced cut-off unit no longer transmits current to the temperature sensing strip 53. After the subsequent heat dissipation is restored, the telescopic sleeve 51 and the temperature sensing strip 53 produce recovery deformation, which again causes the telescopic sleeve 51 to produce extension deformation, driving the trigger block 52 on the upper side to re-abut with the conversion abutment block 44, so that after the subsequent charging operation by the owner, the battery adapter 3, the battery adapter interface 21, the conversion connection block 41, the conversion guide block 42, the conversion connecting block 43, the conversion abutment block 44, the trigger block 52 and the charging contacts in the heat conduction block 61 can be connected to the battery to charge the charging circuit effectively, and then after a certain circuit is stored in the battery, the microprocessor is powered on and restarted, and the battery power collection unit is used to collect the battery power data. The power-on data acquisition unit is used to collect data, and the power-on data of the conversion block 43 at this time is judged by the power-on data acquisition unit. The battery data processing unit judges the state of the battery at this time by combining these two sets of data, and then transmits a control instruction to the charging state indication unit according to the battery state, so that it produces a corresponding display effect through the indicator light, that is, when the conversion block 43 is powered on and the battery is in a charging state, a green light display is generated; when the conversion block 43 is powered on, but the battery is in an uncharged state, a red light display is generated; when the conversion block 43 is converted to a power-off state, a red light display is generated, which is convenient for the owner to judge the charging state and battery state at this time according to the display effect of the indicator light, and can directly and effectively obtain the data of the battery box body 1, and then can generate appropriate protective operations in the subsequent process, ensure the safety of the charging process, reduce the damage of the battery in the battery box body 1, and ensure its durability.

[0059] During the charging process of the battery box 1, the heat conducting sheet 6 can absorb and transfer the heat generated by the battery, and directly transfer it to the temperature sensing strip 53 in the telescopic sleeve 51 through the heat conducting block 61. When the temperature does not reach the deformation temperature of the temperature sensing strip 53, the elastic action of the telescopic sleeve 51 and the temperature sensing strip 53 will make the telescopic sleeve 51 maintain a constant extension state. At this time, the trigger block 52 located on the upper side abuts against the conversion abutment block 44, so that the charging power transmitted by the external unit can be transmitted by the battery adapter 3, the battery adapter interface 21, the conversion connection block 41, the conversion guide block 42, the conversion connecting block 43 and the conversion abutment block 44, and then at the conversion abutment block 44. After contacting with the trigger block 52, the power is transmitted to the battery in the battery box 1 through the two trigger blocks 52 and the charging contact piece in the heat conduction block 61, and the battery is charged. When the two trigger blocks 52 receive the power transmitted by the conversion abutment block 44 and are in the power-on state, the battery state monitoring unit receives the power-on data, determines that the battery temperature is in a safe state at this time, and then transmits the data to the battery data processing unit. The battery data processing unit determines that it is in a safe temperature charging state at this time, and then maintains the green light display of the indicator bead through the charging state indication unit, so that the owner can judge that it is in a normal and safe charging state at this time according to the data displayed by the light;

[0060] As the heat generated by charging continues to accumulate and the temperature reaches the deformation temperature of the temperature-sensitive strip 53, the temperature-sensitive strip 53 produces a thermal deformation contraction effect, and then the telescopic sleeve 51 is driven to produce a contraction deformation through the action of the upper and lower trigger blocks 52, so that the trigger block 52 located on the upper side is separated from the conversion abutment block 44, and then the trigger block 52 is powered off, which cuts off the charging process, thereby avoiding damage to the battery in the battery box 1 caused by continuous high-temperature charging, and ensuring the safety of continuous charging. The battery status monitoring unit receives data after the trigger block 52 is powered off, and transmits it to the electrical data processing unit. The electrical data processing unit determines that it is in a high-temperature protection power-off state at this time, and then the charging status indication unit adjusts the indicator light bead to produce a yellow light imaging effect. While the battery is powered off and cooled, it can also display the current charging status to the owner. The owner can judge whether the current charging status is normal or not based on the duration of the high-temperature power-off, and can cut off the external power supply in time after the continuous high-temperature abnormality, thereby reducing the risk of continuous charging. ; After the battery temperature drops subsequently, the temperature sensing strip 53 produces a recovery deformation, and under the elastic recovery effect of the temperature sensing strip 53 and the telescopic sleeve 51, the telescopic sleeve 51 produces an elongation deformation, and the telescopic sleeve 51 located on the upper side is prompted to re-abut against the conversion abutment block 44, and the battery status monitoring unit re-receives the power-on data transmitted by the trigger block 52, and then transmits the data to the battery data processing unit. The battery data processing unit determines that the charging state has returned to a normal and safe charging state, and controls the indicator light bead to restore the green light display through the charging status indication unit. On the one hand, the battery in the battery box body 1 is recharged to ensure the effectiveness of the charging process. On the other hand, it can show the owner that the charging temperature has returned to normal, so that the owner can control the charging process according to the color data of the light display, realize safe and effective charging operation, effectively realize the integrated synergy of man, machine and control, promote the functionality and applicability of the battery box body 1, effectively promote its subsequent application in power-assisted bicycles, and promote the economic benefits of the battery box body 1.

[0061] In the subsequent charging process, the battery power acquisition unit obtains the data of battery power saturation, and then transmits it to the battery data processing unit. The battery data processing unit determines that the battery charging is completed at this time, and sends a control instruction to the charging status indication unit, so that the charging status indication unit turns off the indicator light bead, so that the owner can effectively obtain the data of charging completion, and the battery data processing unit will also send a control instruction to the forced cut-off unit, so that the forced cut-off unit energizes the temperature sensing strip 53, so that the flexible electric heating wire in the temperature sensing strip 53 is energized to generate heat, and acts on the spiral memory metal wire in the temperature sensing strip 53. After reaching the deformation temperature, the temperature sensing strip 53 generates thermal contraction deformation, and the trigger block 52 drives the telescopic sleeve 51 to generate contraction deformation, so that the trigger block 52 located on the upper side is separated from the conversion abutment block 44, cutting off the battery in the battery box body 1 and the conversion abutment block 44, the conversion connecting block 43, the conversion guide block 42, the conversion connection block 41, and the battery adapter 3. and the connection function of the battery adapter 21 to avoid battery damage caused by continuous charging after saturation charging. Then, the battery data processing unit determines whether the owner has removed the external power supply according to the power-on and power-off data of the conversion block 43 transmitted by the power-on data acquisition unit. When the conversion block 43 is continuously powered on, it means that the external power supply has not been removed, and the power-on function of the temperature-sensing strip 53 is maintained at this time. When the conversion block 43 is in a power-off state, it means that the external power supply has been removed. Then the battery data processing unit disconnects the current transmitted to the temperature-sensing strip 53 through the forced cutting unit, and releases the heating function of the flexible electric heating wire therein. Then, after the subsequent temperature recovery, the temperature-sensing strip 53, under the recovery function of itself and the elastic recovery function of the telescopic sleeve 51, causes the telescopic sleeve 51 to produce an elongated deformation, so that the trigger block 52 located on the upper side is restored to abutment with the conversion abutment block 44, and the connection function of the battery and the battery adapter 3 is maintained at this time, which can effectively provide power support for each unit structure in the power-assisted bicycle.

[0062] Second implementation method:

[0063] Figure 1 - Fig.10 A battery box assembly for a power-assisted bicycle is shown, wherein the input end of the battery data processing unit is also connected to a driving data acquisition unit, and the input end of the driving data acquisition unit is signal-connected to a battery power acquisition unit. The battery power acquisition unit transmits data on changes in the power in the battery to the driving data acquisition unit, so that the driving data acquisition unit can obtain and identify the driving status of the power-assisted bicycle at this time, thereby enabling the battery data processing unit to effectively obtain battery status data and ensure the safety of its application.

[0064] Figure 1 , Figure 2 , Fig. 9 and Fig.10It is shown that a plurality of air holes 11 connected to the interior of the battery box body 1 are provided at the lower end thereof, an auxiliary heat dissipation fan 7 is fixedly connected to the lower end of the battery box body 1, and the output end of the battery data processing unit is also connected to a heat dissipation auxiliary unit, and the output end of the heat dissipation auxiliary unit is signal-connected to the auxiliary heat dissipation fan 7. The battery box cover 2 or the front, rear, left and right sides of the battery box body 1 can be provided with circulation holes that match the air holes 11, so that when the auxiliary heat dissipation fan 7 is working, the air circulation inside the battery box body 1 can be realized to improve the heat dissipation effect. The cooperation between the heat dissipation auxiliary unit and the auxiliary heat dissipation fan 7 can effectively perform the auxiliary heat dissipation function in the battery box body 1, which can not only promote the dissipation of charging heat during the charging process and ensure the safety of charging, but also promote the dissipation of heat in the battery box body 1 during the long-term driving of the power-assisted bicycle, avoid the deformation of the temperature-sensing trigger component 5 caused by heat accumulation during the driving process, and effectively ensure the effectiveness and stability of the power support of the battery box body 1 during the driving process.

[0065] Figure 1 - Fig.10 It is shown that when the battery box body 1 is used, the battery power acquisition unit transmits the power change data to the battery data processing unit, and also transmits the power change data to the driving data acquisition unit, so that the driving data acquisition unit judges the continuous riding data according to the state and frequency of the continuous reduction of the battery power, and then transmits the data to the battery data processing unit, so that the battery data processing unit can effectively obtain whether the power-assisted bicycle is in a state of long-term driving at this time. When it is judged that it is in a state of long-term driving, a control instruction will be issued to the heat dissipation auxiliary unit, so that the heat dissipation auxiliary unit starts the auxiliary heat dissipation fan 7, so that the auxiliary heat dissipation fan 7 draws the air in the battery box body 1 downward through the action of the air vent 11, so that the gas flow in the battery box body 1 is transmitted from top to bottom, and the battery box body 1 is assisted in the heat dissipation cycle, thereby reducing the accumulation of heat in the battery box body 1, and then effectively avoiding the heat accumulation caused by long-term discharge of the battery, reducing the influence of heat on the temperature sensing strip 53, and ensuring the stability of the power support of the battery box body 1 during the application process.

[0066] At the same time, when the battery data processing unit controls the forced cut-off unit to disconnect the current to the temperature-sensitive strip 53, the heat dissipation auxiliary unit will also be used to start the auxiliary heat dissipation fan 7 to assist the heat dissipation cycle in the battery box 1, promote the subsequent recovery efficiency of the temperature-sensitive strip 53, and improve its effectiveness in restoring the battery power conduction. In addition, during the charging process, the battery data processing unit can also control the auxiliary heat dissipation fan 7 through the heat dissipation auxiliary unit to ensure the charging temperature, avoid the occurrence of high temperature, and effectively promote the safety and effectiveness of the charging process.

[0067] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A battery box assembly for a power-assisted bicycle, characterized in that: The battery box comprises a battery box body (1) and a battery box cover (2) mounted on the upper end of the battery box body (1); a battery conversion interface (21) is mounted on the right side of the upper end of the battery box cover (2); a battery conversion connector (3) is plugged into the upper end of the battery conversion interface (21); and a conversion box (4) is fixedly mounted on the right side of the lower inner wall of the battery box cover (2) at a position corresponding to the battery conversion interface (21); The upper end of the conversion box (4) is embedded with a conversion connection block (41) connected to the battery conversion interface (21); the lower end of the conversion connection block (41) is fixedly connected with a conversion guide block (42) connected thereto; the lower end of the conversion guide block (42) is fixedly connected with a conversion connecting block (43) connected thereto; and the lower end of the conversion connecting block (43) is fixedly connected with a conversion abutment block (44) connected thereto; The lower end of the conversion box (4) is embedded with a heat conduction block (61), the lower end of the heat conduction block (61) extends to the outside of the conversion box (4) and is fixedly connected to a heat conduction sheet (6), the lower end of the heat conduction sheet (6) extends into the battery box body (1) and abuts against the battery arranged in the battery box body (1), the upper end of the heat conduction block (61) extends to the inside of the conversion box (4) and is fixedly connected to a temperature sensing trigger component (5), and the temperature sensing trigger component (5) cooperates with the conversion abutment block (44); A microprocessor is fixedly mounted on the left side of the lower inner wall of the battery box cover (2), wherein a battery data processing unit is arranged in the microprocessor, wherein the input end of the battery data processing unit is connected to a battery status monitoring unit, a power-on data acquisition unit and a battery power acquisition unit, wherein the input end of the battery status monitoring unit is connected to a temperature sensing trigger component (5) for signal connection, wherein the input end of the power-on data acquisition unit is connected to a conversion block (43) for signal connection via a wire, wherein the input end of the battery power acquisition unit is connected to a battery signal arranged in the battery box body (1) via a heat conduction block (61), wherein the output end of the battery data processing unit is connected to a charging status indicating unit, wherein the output end of the charging status indicating unit is connected to an indicator light bead.

2. The battery box assembly for a power-assisted bicycle according to claim 1, characterized in that: The temperature sensing trigger component (5) comprises a telescopic sleeve (51) fixedly mounted on the upper end of the heat conduction block (61), and the telescopic sleeve (51) is located in the conversion box (4), and the upper and lower ends of the telescopic sleeve (51) are both embedded with trigger blocks (52), and the trigger block (52) located on the upper side cooperates with the conversion abutment block (44), and the trigger block (52) located on the lower side is in fixed abutment with the heat conduction block (61); The heat conduction block (61) is embedded with a charging contact piece that matches the battery arranged in the battery box (1), and the left and right inner walls of the telescopic sleeve (51) are embedded with elastic conductive strips connecting the upper and lower trigger blocks (52), and a temperature sensing strip (53) is also fixedly connected between the upper and lower trigger blocks (52).

3. The battery box assembly for a power-assisted bicycle according to claim 2, characterized in that: The input end of the battery status acquisition unit is connected to the trigger block (52) by signal. When the telescopic sleeve (51) is in the extended state, the two trigger blocks (52) can realize the power-on state by switching the connection block (41), the conversion guide block (42), the conversion connecting block (43) and the conversion abutment block (44). After receiving the data of the power-on state, the battery status acquisition unit determines that it is in the safe temperature charging state at this time, and the battery data processing unit controls the indicator bead to emit green light status display through the charging state indication unit; When the telescopic sleeve (51) is in a contracted state due to the action of the temperature sensing strip (53), the trigger block (52) located on the upper side does not abut against the conversion abutment block (44), and the two trigger blocks (52) are in a power-off state. After receiving the data of the power-off state, the battery state acquisition unit determines that it is in a high-temperature protection power-off state at this time, and the battery data processing unit controls the indicator bead to emit a yellow light status display through the charging state indication unit.

4. The battery box assembly for a power-assisted bicycle according to claim 2, characterized in that: The elastic deformation direction of the telescopic sleeve (51) is the vertical direction, and the stiffness coefficient of the telescopic sleeve (51) is less than or equal to the stiffness coefficient of the temperature sensing strip (53).

5. The battery box assembly for a power-assisted bicycle according to claim 2, characterized in that: The output end of the battery data processing unit is also connected to a forced cut-off unit, and the output end of the forced cut-off unit is connected to a temperature sensing strip (53) signal, wherein the temperature sensing strip (53) is made of a composite of a spiral memory metal wire and a flexible electric heating wire.

6. The battery box assembly for a power-assisted bicycle according to claim 1, characterized in that: The input end of the battery data processing unit is also connected to a driving data collection unit, and the input end of the driving data collection unit is signal-connected to the battery power collection unit.

7. The battery box assembly for a power-assisted bicycle according to claim 1, characterized in that: The lower end of the battery box body (1) is provided with a plurality of ventilation holes (11) which are connected to the interior thereof. The lower end of the battery box body (1) is fixedly connected to an auxiliary heat dissipation fan (7). The output end of the battery data processing unit is also connected to a heat dissipation auxiliary unit. The output end of the heat dissipation auxiliary unit is signal-connected to the auxiliary heat dissipation fan (7).

Images