Electric scooter

Abstract

The utility model provides an electric scooter. The electric scooter comprises a main body, wheels, an electric motor and a battery pack, the battery pack is detachably arranged on the battery mounting part, and the battery mounting part comprises a coupler suitable for being mechanically and electrically connected with a power output port of the battery pack; the battery pack is initially designed as a power supply of the portable medical device, and the portable medical device is configured to be used only after being driven by electric power and is provided with a coupler with the same configuration as that of the coupler; and a circuit unit configured to electrically connect at least the battery pack attached to the battery mounting portion with the electric motor. Therefore, the power supply of the portable medical instrument is compatible with the power supply of the electric scooter, the portable medical instrument and the electric scooter can share one battery pack, on one hand, the operation consistency is unified, on the other hand, the electric scooter and the portable medical instrument can be sold together, and the purchase cost of a user is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of electric walking vehicle and its combination with portable medical instrument. BACKGROUND

[0002] In today's society, the life quality and health status of the elderly are increasingly concerned. In order to better meet the needs of the elderly, a variety of elderly products have emerged. Among them, electric products such as wheelchairs, respirators, oxygen generators, and atomizers have become indispensable equipment for the elderly at home to meet the different needs of the elderly in their old age.

[0003] However, the wheelchair used for walking often uses a replaceable battery pack as a driving power source, while the electric products such as respirators, oxygen generators, and atomizers are generally connected to AC power supply by power cord for operation, resulting in lack of portability and operation consistency. UTILITY MODEL CONTENT

[0004] The utility model aims to provide an electric walking vehicle and its combination with portable medical instrument to solve the above technical problems.

[0005] Therefore, the utility model provides an electric walking vehicle, which comprises:

[0006] a main body comprising at least a seat for a user to sit on and a battery mounting portion;

[0007] wheels rotatably supported at the bottom of the main body;

[0008] an electric motor configured to apply torque to at least one of the wheels;

[0009] a battery pack configured to be detachably mounted on the battery mounting portion, wherein the battery mounting portion comprises a coupler adapted to mechanically and electrically connect to a power output port of the battery pack;

[0010] wherein the battery pack is originally designed as a power source for a portable medical instrument, the portable medical instrument is configured to be powered by electricity to be used, and the portable medical instrument has a coupler configured the same as the coupler;

[0011] a circuit unit configured to electrically connect at least the battery pack attached to the battery mounting portion to the electric motor, so that at least one of the wheels is driven by the power provided from the battery pack.

[0012] Further, the coupler comprises:

[0013] positive and negative power terminals configured to be electrically connected to corresponding positive and negative power terminals of the battery pack;

[0014] at least one communication terminal electrically connected to a device-side controller of the electrically powered mobility vehicle or the portable medical instrument and configured to be adapted to electrically connect with at least one corresponding signal terminal of the battery pack for transmitting information from the battery pack to the device-side controller for controlling discharging of the battery pack.

[0015] Further, the battery pack comprises:

[0016] positive and negative power terminals, signal terminals, and a power source-side controller;

[0017] the power source-side controller is configured to transmit first information to the device-side controller and receive first response information from the device-side controller within a predetermined time period;

[0018] communication with the device-side controller is established when the first response information is received within the predetermined time period;

[0019] communication with the device-side controller is not established when the first response information is not received within the predetermined time period.

[0020] Further, the battery pack further comprises a discharging control module;

[0021] the battery pack is configured to:

[0022] communication with the device-side controller is established through the electrical connection of the signal terminals with the communication terminals;

[0023] the electrically powered mobility vehicle or the portable medical instrument to which the battery pack is connected is identified;

[0024] second information is transmitted to a device-side controller of the electrically powered mobility vehicle or the portable medical instrument to which the battery pack is connected, and,

[0025] the discharging control module is controlled using the power source-side controller based on the communication with the electrically powered mobility vehicle or the portable medical instrument.

[0026] Further, the electrically powered mobility vehicle or the portable medical instrument is configured to:

[0027] the second information is received when the coupler connects the battery pack and has established communication with the battery pack;

[0028] a second response information is generated in response to the second information, and

[0029] the second response information is transmitted to the battery pack; wherein,

[0030] receiving power from the battery pack when the electrically powered mobility vehicle or the portable medical instrument has established communication with the battery pack and the discharge control module is turned on; and / or,

[0031] turning off the discharge control module when the power supply side controller does not receive the second response information from the device side controller within a predetermined time period.

[0032] Further, the battery pack is configured to:

[0033] establish communication with the device side controller through the electrical connection of the signal terminal and the communication terminal;

[0034] identify the electrically powered mobility vehicle or the portable medical instrument to which the battery pack is connected;

[0035] communicate second information to a device side controller of the electrically powered mobility vehicle or the portable medical instrument to which the battery pack is connected, and

[0036] control a device side discharge switch of the electrically powered mobility vehicle or the portable medical instrument based on the communication with the electrically powered mobility vehicle or the portable medical instrument using the device side controller.

[0037] Further, the electrically powered mobility vehicle or the portable medical instrument is configured to:

[0038] receive the second information when the coupler connects the battery pack and has established communication with the battery pack;

[0039] generate a second response information in response to the second information, and

[0040] communicate the second response information to the battery pack; wherein,

[0041] receive power from the battery pack when the electrically powered mobility vehicle or the portable medical instrument has established communication with the battery pack and the device side discharge switch is turned on; and / or,

[0042] turn off the device side discharge switch when the power supply side controller does not receive the second response information from the device side controller within a predetermined time period.

[0043] Further, the battery mounting portion is configured to receive the battery pack when the battery pack is detached from the portable medical instrument.

[0044] Further, the battery pack includes a first battery pack and a second battery pack, each of which is originally designed as a power supply for the portable medical instrument.

[0045] Further, a latch structure adapted to latch the battery pack to the battery mounting portion and an actuator are provided between the battery pack and the battery mounting portion, the actuator being located on the battery pack or the main body and operable to switch the latch structure between an engaged state and a disengaged state.

[0046] Further, the utility model still includes:

[0047] A voltage conversion circuit is arranged inside the main body and electrically connected to the coupler and the electric motor respectively, for converting the voltage from the battery pack into the working voltage of the electric motor.

[0048] Compared with the prior art, the utility model technical scheme has the beneficial technical effects that:

[0049] The battery pack used by the electric vehicle is initially designed as the power supply of a portable medical instrument, so that the power supply of the portable medical instrument, such as a portable oxygen generator, a portable breathing machine, a portable atomizer, a portable hydrogen generator, etc., is compatible with the power supply of the electric vehicle, and the two can share one battery pack, on the one hand, the operation consistency is unified, and on the other hand, the electric vehicle can be sold together with the portable medical instrument, thereby reducing the purchase cost of the user. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the specific embodiments of the utility model or the technical scheme in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0051] Figure 1 The utility model specific embodiment electric vehicle structure schematic view;

[0052] Figure 2 The utility model specific embodiment atomizer structure schematic view;

[0053] Figure 3 The utility model specific embodiment battery pack structure schematic view;

[0054] Figure 4 The utility model specific embodiment battery pack and equipment end controller connection principle schematic view;

[0055] Figure 5 The utility model specific embodiment battery pack and equipment end controller connection another principle schematic view;

[0056] Figure 6 Another principle diagram of the battery pack connected with the device end controller in the embodiment of the utility model;

[0057] Figure 7 The electric vehicle structure diagram of the embodiment of the utility model adopts double battery packs;

[0058] Figure 8 The battery pack latching structure diagram of the embodiment of the utility model;

[0059] Figure 9 The battery pack latching structure section view of the embodiment of the utility model;

[0060] Figure 10 The principle diagram of the voltage conversion circuit of the embodiment of the utility model;

[0061] Figure 11 The combination scheme diagram of the electric vehicle and the portable medical instrument of the embodiment of the utility model;

[0062] Figure 12 The schematic diagram of the inverter connecting AC power and electric equipment in the embodiment of the utility model;

[0063] Figure 13 The schematic diagram of the AC power being disconnected, the battery pack inverting output power supply electric equipment in the embodiment of the utility model. DETAILED DESCRIPTION

[0064] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor belong to the scope of the utility model protection.

[0065] Refer to Figure 1The shown electrically powered walking vehicle 100 at least comprises a main body 10, wheels 11, and an electric motor 12 and a circuit unit, wherein the main body 10 at least comprises a seat 10a for a user to sit on and a first battery mounting portion 10b, the wheels 11 are rotatably supported at the bottom of the main body 10, the electric motor 12 is configured to apply torque to at least one of the wheels 11 to drive the wheel 11 to rotate, and the circuit unit is configured to at least electrically connect a battery pack 300 attached to the battery mounting portion 10b with the electric motor 12, whereby the at least one wheel 11 is driven by the power provided from the battery pack 300, and the user can sit on the seat 10a to operate the electrically powered walking vehicle 100, such as turning it on, going forward, going backward, turning, etc. by operating a joystick. In particular, the battery pack 300 is configured to be detachably mounted on the first battery mounting portion 10b, and the first battery mounting portion 10b comprises a first coupler 13a adapted to mechanically and electrically connect with a power output port of the battery pack 300.

[0066] In particular, the battery pack 300 is initially designed as a power source of a portable medical instrument 200 configured to be used by power driving, and the portable medical instrument 200 has a second coupler 13b configured the same as the first coupler 13a. Figure 2 The shown portable nebulizer 200c is taken as an example to illustrate that the battery pack 300 is initially designed as a power source of a portable medical instrument 200, wherein the portable nebulizer 200c needs to be driven by power to perform a nebulization operation, and it comprises a housing 20 and a second battery mounting portion 20b, the second battery mounting portion 20b comprises a second coupler 13b adapted to mechanically and electrically connect with a power output port of the battery pack 300, and the second coupler 13b is configured the same as the first coupler 13a, and the detailed configuration is specifically referred to below.

[0067] When a nebulization operation is needed to be performed, the battery pack 300 is mounted in the second battery mounting portion 20b, the power output port of the battery pack is mechanically and electrically connected with the second coupler 13b, a start switch of the portable nebulizer 200c is turned on, and the battery pack 300 provides driving power to an operation element, such as a compressor, of the portable nebulizer 200c through the second coupler 13b mechanically and electrically connected therewith.

[0068] Further, referring to Figure 3 As shown, the first and second couplers (13a, 13b) comprise:

[0069] a positive and negative power terminal (130, 131) configured to be adapted to electrically connect to corresponding positive and negative power terminals (301, 302) of the battery pack 300;

[0070] At least one communication terminal 132 is electrically connected to the device-side controller of the electrically powered mobility vehicle 100 or the portable medical instrument 200, and is configured to be adapted to electrically connect with at least one corresponding signal terminal 303 of the battery pack 300, for transmitting information from the battery pack 300 to the device-side controller for controlling the discharging of the battery pack 300.

[0071] With continued reference to Figure 3 As shown, the battery pack 300 includes:

[0072] The battery pack positive and negative power terminals (301, 302), the signal terminal 303, and the power source-side controller 304;

[0073] The power source-side controller 304 is configured to transmit first information, such as identification information, to the device-side controller, and to receive first response information from the device-side controller within a predetermined time period; when the first response information is received within the predetermined time period, then communication is established with the device-side controller; when the first response information is not received within the predetermined time period, then communication is not established with the device-side controller.

[0074] The battery pack 300 can transmit first information, such as identification information, preferably a multi-byte message, to the device to which it is connected, such as the electrically powered mobility vehicle 100 or the portable medical instrument 200 or a charger, which device can be configured to receive the first message and to respond to the power source-side controller 304 according to the message, and the power source-side controller 304 periodically queries the device-side controller to confirm that the battery pack is connected to the device and that proper functions (such as charging function, discharging function, etc.) are available.

[0075] For example, the power source-side controller 304 transmits a plurality of messages to the device-side controller within three communication periods to initiate, and expects to establish communication with the device. If the power source-side controller 304 is unable to receive the expected response or valid message from the device-side controller during this time period, the power source-side controller 304 shuts down the charging and discharging control module and enters a sleep mode.

[0076] When in the sleep mode, the power consumption of the battery pack 300 is minimized, and in addition, the sleep mode is safer in that, for example, the battery pack 300 is unable to provide any significant power to external devices or to the positive and negative power terminals of the battery pack. In this way, the risk of a short circuit of the positive and negative power terminals, which can cause a fire or similar safety problem, is eliminated or significantly reduced.

[0077] It is noted that the battery pack 300 only powers the electrically powered mobility vehicle 100 and the portable medical instrument 200 for operation when the power source-side controller 304 has established communication with the device-side controller via the signal terminal 303.

[0078] Thus, the battery pack 300 can identify whether the device connected thereto is the electrically powered mobility vehicle 100 or the portable medical instrument 200, or a charger, and control whether to allow the electrically powered mobility vehicle 100 or the portable medical instrument 200 or the charger connected thereto to access the charge / discharge circuit thereof.

[0079] Specifically, the power source side controller 304 includes a processor, a memory, and the memory stores program data therein. The power source side controller 304 can be configured to communicate with devices (e.g., a battery charger, the electrically powered mobility vehicle 100, the portable medical instrument 200, etc.), measure voltages of the individual cells within the battery pack 300, measure a discharge current of the battery pack, control a plurality of field effect transistor ("FET") switches, measure a temperature of the battery pack, and monitor a number of charge or discharge cycles.

[0080] Further, the power source side controller 304 can also store charging and / or discharging operation parameters, and the identity information described above, and the battery pack 300 can provide the charging and / or discharging operation parameters to the charger, the electrically powered mobility vehicle 100, or the portable medical instrument 200, wherein the operation parameters include, for example, a rated voltage, a rated capacity, a rated current, a charge current limit, a discharge current limit, a remaining capacity, a discharge cut-off voltage, and the like, of the battery pack.

[0081] Further, referring to FIG. 1, the battery pack 300 also includes a discharge control module 305; Figure 4

[0082] The battery pack 300 is configured to:

[0083] establish communication with the device side controller through the electrical connection of the signal terminal 303 with the communication terminal 132;

[0084] identify the electrically powered mobility vehicle 100 or the portable medical instrument 200 to which the battery pack 300 is connected;

[0085] transmit the second information to the device side controller of the electrically powered mobility vehicle 100 or the portable medical instrument 200 to which the battery pack 300 is connected, and

[0086] control the discharge control module 305 using the power source side controller 304 based on the communication with the electrically powered mobility vehicle 100 or the portable medical instrument 200.

[0087] ​The second information can be working state data information of the battery pack 300, such as real-time voltage data information, current data information, temperature data information, etc. The discharge control module 305 includes at least one FET configured as a switch to control the discharge current from the battery pack. If the FET is "on", the battery pack can be discharged. If the FET is "off", the battery pack is not discharged. The discharge control module 305 is controlled by the power supply side controller 304.

[0088] Further, the electrically powered walkabout vehicle 100 or the portable medical instrument 200 is configured to:

[0089] receive the second information when the first coupler 13a or the second coupler 13b connects the battery pack 300 and has established communication with the battery pack 300;

[0090] generate second response information in response to the second information, and

[0091] transmit the second response information to the battery pack 300; wherein,

[0092] receive power from the battery pack 300 when the electrically powered walkabout vehicle 100 or the portable medical instrument 200 has established communication with the battery pack 300 and the discharge control module 305 is on; and / or,

[0093] turn off the discharge control module 305 when the power supply side controller 304 does not receive the second response information from the device side controller within a predetermined time period.

[0094] For example, when the battery pack 300 is loaded into the battery mounting portion, the power output port of the battery pack 300 is mechanically and electrically connected with the first coupler 13a or the second coupler 13b, the identity of the two is identified, the communication is established, the battery pack 300 continues to transmit the second information, such as the working state data information, to the electrically powered walkabout vehicle 100 or the portable medical instrument 200, the work start switch of the electrically powered walkabout vehicle 100 or the portable medical instrument 200 is turned on, the device side controller generates the second response information in response to the second information, and the electrically powered walkabout vehicle 100 or the portable medical instrument 200 receives power from the battery pack 300 when the discharge control module 305 is on.

[0095] When the battery pack 300 is installed in the battery mounting portion, the power output port of the battery pack 300 is mechanically and electrically connected with the first coupler 13a or the second coupler 13b, the identity of the two is also identified, and the communication is established, the battery pack 300 continues to transmit the second information, such as the working state data information, to the electrically powered scooter 100 or the portable medical instrument 200, and the electrically powered scooter 100 or the portable medical instrument 200 is always in an unpowered state, and the power supply side controller 304 does not receive the second response information from the equipment side controller within a predetermined time period, and the discharge control module 305 is closed, and the sleep mode is entered.

[0096] When the electrically powered scooter 100 or the portable medical instrument 200 is operated to start the work at a certain moment, the power supply side controller 304 of the battery pack 300 is activated to wake up, and the second information is continued to be transmitted to the electrically powered scooter 100 or the portable medical instrument 200.

[0097] In addition, in the case that the battery pack 300 is configured with the discharge control module 305, the electrically powered scooter 100 or the portable medical instrument 200 communicates with the battery pack 300, and other operations can also be adjusted based on the operating parameters of the battery pack 300. For example, when the voltage of the battery pack 300 drops below the predetermined discharge cutoff voltage, the battery pack 300 terminates the discharge current regardless of whether the communication with the equipment side controller is established, and enters the sleep mode. For another example, if the voltage of one of the battery cells of the battery pack 300 drops below the predetermined low-voltage limit, the battery pack 300 also closes the discharge control module 305 to terminate the discharge current regardless of whether the communication with the equipment controller is effective, and enters the sleep mode. For yet another example, if the temperature of the battery pack 300 reaches the predetermined temperature limit, the battery pack 300 also closes the discharge control module 305 to terminate the discharge current regardless of whether the communication with the equipment controller is effective, and enters the sleep mode.

[0098] Referring to Figure 5 In another embodiment of the battery pack, as shown in the figure, the battery pack 300 is configured to:

[0099] establish communication with the equipment side controller through the electrical connection of the signal terminal 303 and the communication terminal 132;

[0100] identify the electrically powered scooter 100 or the portable medical instrument 200 to which the battery pack 300 is connected;

[0101] transmit the second information to the equipment side controller of the electrically powered scooter 100 or the portable medical instrument 200 to which the battery pack 300 is connected, and

[0102] The device side controller controls the device side discharge switch S of the electrically powered mobility vehicle 100 or the portable medical instrument 200 based on the communication with the battery pack 300.

[0103] At this time, the battery pack 300 is not provided with the discharge control module as described above, but the device side discharge switch S is configured at the device side.

[0104] The device side discharge switch S is preferably a FET. If the FET is in "on", the battery pack is connected to the device side discharge circuit. If the FET is in "off", the battery pack is disconnected from the device side discharge circuit. The device side discharge switch S is controlled by the device side controller.

[0105] Further, the electrically powered mobility vehicle 100 or the portable medical instrument 200 is configured to:

[0106] receive the second information when the first coupler 13a or the second coupler 13b is connected to the battery pack 300 and has established communication with the battery pack 300;

[0107] generate second response information in response to the second information, and

[0108] transmit the second response information to the battery pack 300; wherein,

[0109] receive power from the battery pack 300 when the electrically powered mobility vehicle 100 or the portable medical instrument 200 has established communication with the battery pack 300 and the device side discharge switch S is closed; and / or,

[0110] turn off the device side discharge switch S when the power side controller 304 does not receive the second response information from the device side controller within a predetermined time period.

[0111] Likewise, when the battery pack 300 is loaded into the battery mounting portion, the power output port of the battery pack 300 is mechanically and electrically connected to the first coupler 13a or the second coupler 13b, the identity of the two is identified, the communication is established, the battery pack 300 continues to transmit the second information, such as the working state data information, to the electrically powered mobility vehicle 100 or the portable medical instrument 200, the work start switch of the electrically powered mobility vehicle 100 or the portable medical instrument 200 is turned on, in response to the second information, the device side controller generates the second response information, and at the same time the device side discharge switch S is closed, the electrically powered mobility vehicle 100 or the portable medical instrument 200 receives power from the battery pack 300.

[0112] When the battery pack 300 is installed in the battery mounting portion, the power output port of the battery pack 300 is mechanically and electrically connected with the first coupler 13a or the second coupler 13b, the identity recognition is completed, and the communication is established, the battery pack 300 continues to transmit the second information, such as the working state data information, to the electrically powered scooter 100 or the portable medical instrument 200, and the electrically powered scooter 100 or the portable medical instrument 200 is always in the unpowered state, the power supply side controller 304 does not receive the second response information from the equipment side controller within a predetermined time period, the discharging control module 305 is closed, and the sleep mode is entered.

[0113] Referring to Figure 6 As shown in FIG. 8, in another embodiment of the battery pack, the battery pack 300 is configured to have both the discharging control module and the equipment side discharging switch S inside the battery pack 300.

[0114] When the battery pack 300 is installed in the battery mounting portion, the power output port of the battery pack 300 is mechanically and electrically connected with the first coupler 13a or the second coupler 13b, the identity recognition is completed, and the communication is established, the battery pack 300 continues to transmit the second information, such as the working state data information, to the electrically powered scooter 100 or the portable medical instrument 200, the working start switch of the electrically powered scooter 100 or the portable medical instrument 200 is turned on, the equipment side controller generates the second response information in response to the second information, and the electrically powered scooter 100 or the portable medical instrument 200 receives the power from the battery pack 300 when the discharging control module 305 is turned on and the equipment side discharging switch S is closed.

[0115] When the battery pack 300 is installed in the battery mounting portion, the power output port of the battery pack 300 is mechanically and electrically connected with the first coupler 13a or the second coupler 13b, the identity recognition is completed, and the communication is established, the battery pack 300 continues to transmit the second information, such as the working state data information, to the electrically powered scooter 100 or the portable medical instrument 200, and the electrically powered scooter 100 or the portable medical instrument 200 is always in the unpowered state, the power supply side controller 304 does not receive the second response information from the equipment side controller within a predetermined time period, the discharging control module 305 is closed, and the sleep mode is entered.

[0116] In addition, as described above, the battery mounting portion is configured to receive the battery pack 300 when the battery pack 300 is detached from the portable medical instrument 200.

[0117] Further, referring to Figure 7 As shown in FIG. 8, in another embodiment of the battery pack, the battery pack 300 is configured to have both the discharging control module and the equipment side discharging switch S inside the battery pack 300.

[0118] More specifically, a latch structure adapted to latch connect the battery pack 300 to the battery mounting portion and an actuator are provided between the battery pack 300 and the battery mounting portion, the actuator being located on the battery pack 300 or the main body 10 and operable to switch the latch structure between an engaged state and a disengaged state.

[0119] Referring to Figure 8 and Figure 9 , the battery pack 300 has a latch 307 which is latch connected with a lock key 307S provided on the side of the electrically powered mobility vehicle 100 or the portable medical instrument 200. Further, referring to Figure 8 and Figure 9 , the battery pack 300 comprises an actuator 306, operating the actuator 306 actuates an arm 308, so that the latch 307 connected with the arm 308 swings to disengage the latch 307 from the lock key 307S to unlock, at this time, the battery pack 300 can be operated to be taken out, in addition, the periphery of the latch 307 is connected with a torsion spring 309 for resetting.

[0120] In addition, since the battery pack 300 is originally designed as a power supply for the portable medical instrument 200. There is a possibility that the working voltage of the portable medical instrument 200 is different from that of the electrically powered mobility vehicle 100, resulting in that the battery pack 300 cannot be applicable to the electrically powered mobility vehicle 100, therefore, the electrically powered mobility vehicle 100 is configured with a voltage conversion circuit.

[0121] Referring in particular to Figure 10 , the electrically powered mobility vehicle 100 further comprises:

[0122] a voltage conversion circuit, which is configured inside the main body 10 and electrically connected to the first coupler 13a and the electric motor 12 respectively, for converting the voltage from the battery pack 300 into the working voltage of the electric motor 12. More preferably, the above-mentioned voltage conversion circuit is preferably a DC / DC boost circuit, considering that the battery pack 300 is originally designed as a power supply for the portable medical instrument 200. While the portable medical instrument 200 is considered for portability, the battery pack is designed to be miniaturized, resulting in that the battery pack voltage tends to be a lower voltage, for example, 12V or 18V or 24V; while the electrically powered mobility vehicle 100 is generally large in size, tends to use a 42V or 56V battery pack as a driving power supply, therefore, the above-mentioned voltage conversion circuit is preferably a DC / DC boost circuit, in this way, the power supply of the portable medical instrument 200 will be compatible with the power supply of the electrically powered mobility vehicle 100, both of which can share one battery pack, and further, the electrically powered mobility vehicle 100 can be sold together with the portable medical instrument 200, reducing the purchase cost of the user.

[0123] In addition, referring to Figure 11As shown, the utility model also provides a kind of combination of electric walking vehicle and portable medical instrument, it includes:

[0124] Electric walking vehicle 100, including main body 10, wheel 11 placed in the bottom of main body 10 and first electric motor, first electric motor is to at least one wheel 11 apply torque, main body 10 defines a first battery installation part 10b with first opening, and first battery installation part 10b includes first coupler 13a;

[0125] Portable medical instrument 200, including shell 20, controller and operating element placed in the shell, shell defines a second battery installation part 20b with second opening, and second opening is consistent with the shape and size of first opening, and second battery installation part 20b includes second coupler 13b;

[0126] At least one battery pack 300 is configured to be detachably connected to electric walking vehicle 100 and portable medical instrument 200;

[0127] When connecting to electric walking vehicle 100, the power output port of battery pack 300 is mechanically and electrically connected with first coupler 13a to close first opening, and is configured to be communicatively connected to electric walking vehicle 100, and battery pack 300 can selectively power first electric motor;

[0128] When connecting to portable medical instrument 200, the power output port of battery pack 300 is mechanically and electrically connected with second coupler 13b to close second opening, and is configured to be communicatively connected to portable medical instrument 200, and battery pack 300 can selectively power operating element.

[0129] Battery pack 300 selectively powers first electric motor or operating element, which can be specifically referred to above and combined with Figure 4 、 Figure 5 And Figure 6 As shown, here is not repeated.

[0130] Further, as described above, portable medical instrument 200 is considered for portability, and the battery pack is designed to be miniaturized, resulting in a battery pack voltage tending to be lower voltage, for example 12V or 18V or 24V;And electric walking vehicle 100 is generally large in size, and tends to use 42V or 56V battery pack as driving power source, when portable medical instrument 200 needs to share the power supply of electric walking vehicle 100, more preferably, portable medical instrument 200 also includes voltage conversion circuit, which is arranged inside the shell, and is electrically connected to second coupler 13b and operating element respectively, for converting the voltage from battery pack 300 into the operating voltage of operating element.

[0131] Thus, the nominal operating voltage of the portable medical instrument 200 is lower than the nominal operating voltage of the electrically powered mobility vehicle 100.

[0132] Further, the battery pack 300 has a nominal voltage consistent with the nominal operating voltage of the electrically powered mobility vehicle 100.

[0133] More specifically, the above-mentioned voltage conversion circuit is a DC / DC step-down circuit.

[0134] In addition, the portable medical instrument 200 is preferably a motorized portable medical instrument 200, comprising a second electric motor disposed within the housing, the second electric motor having a nominal operating voltage lower than the nominal operating voltage of the first electric motor.

[0135] Further, the portable medical instrument 200 comprises a portable oxygen generator 200a, a portable breathing machine 200b, a portable nebulizer 200c, a portable hydrogen generator 200d.

[0136] Further, the combination of the electrically powered mobility vehicle and the portable medical instrument further comprises:

[0137] a charger 400 comprising charger terminals and adapted to charge the battery pack 300 remotely from the electrically powered mobility vehicle 100 or the portable medical instrument 200 when the battery pack 300 is removed from either of the battery mounting portions, i.e. the first battery mounting portion 10b or the second battery mounting portion 20b, and mechanically and electrically connected with the charger terminals.

[0138] In addition, with continued reference to Figure 11 the combination of the electrically powered mobility vehicle and the portable medical instrument further comprises an inverter 500.

[0139] The inverter 500 is adapted to be connected with the battery pack 300 to invert the DC current at the power output terminal of the battery pack 300 to AC current for use by the user, for example, to power a conventional AC type electric product with power cord connected to AC power supply, including conventional AC type breathing machine, oxygen generator, nebulizer, etc.

[0140] Further, the above-mentioned inverter 500 is a bidirectional inverter, i.e. comprising at least a bidirectional AC / DC circuit 500a, so that the battery pack 300 can be charged by the inverter 500 and can be inverted by the inverter 500.

[0141] With reference to Figure 12 and Figure 13 the inverter 500 is a bidirectional inverter, i.e. comprising at least a bidirectional AC / DC circuit 500a, which can be combined with a conventional AC type electric product with power cord connected to AC power supply, including conventional AC type breathing machine, oxygen generator, nebulizer, etc. to form an emergency backup power supply system solution.

[0142] Referring to Figure 12 As shown in the figure, the input end of the inverter 500 is connected with the AC power supply, and the output end is connected with the AC type breathing machine, oxygen generator, atomizer and other electric products, and the AC type atomizer 2000c is taken as an example, the battery pack 300 is connected with the inverter 500, at this time, one way of the connected AC power supply is supplied to the battery pack 300 through the bidirectional AC / DC circuit 500a for charging, and the other way is bypassed and directly supplied to the AC type atomizer 2000c for power supply.

[0143] Referring to Figure 13 As shown in the figure, the input end of the inverter 500 is connected with the AC power supply, and the output end is connected with the AC type breathing machine, oxygen generator, atomizer and other electric products, and the AC type atomizer 2000c is taken as an example, the battery pack 300 is connected with the inverter 500, at this time, one way of the connected AC power supply is supplied to the battery pack 300 through the bidirectional AC / DC circuit 500a for charging, and the other way is bypassed and directly supplied to the AC type atomizer 2000c for power supply.

[0144] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. An electrically powered mobility vehicle, comprising: a main body including at least a seat for a user to sit on and a battery mounting portion; wheels rotatably supported at a bottom of the main body; an electric motor configured to apply torque to at least one of the wheels; a battery pack configured to be detachably mounted to the battery mounting portion, the battery mounting portion including a coupler adapted to mechanically and electrically connect to a power output of the battery pack; wherein the battery pack is originally designed as a power source for a portable medical instrument configured to be used by power driving, the portable medical instrument having a coupler identical to the coupler of the battery pack; a circuit unit configured to electrically connect at least the battery pack attached to the battery mounting portion to the electric motor, whereby the at least one wheel is driven by power supplied from the battery pack.

2. The electrically motorized walk-through vehicle according to claim 1, characterized in that the coupler includes: positive and negative power terminals configured to be adapted to electrically connect to corresponding positive and negative power terminals of the battery pack; at least one communication terminal electrically connected to a device-side controller of the electrically powered mobility vehicle or the portable medical instrument and configured to be adapted to electrically connect to at least one corresponding signal terminal of the battery pack for transmitting information from the battery pack to the device-side controller for controlling discharging of the battery pack.

3. The electrically motorized walk-through vehicle according to claim 2, characterized in that the battery pack includes: positive and negative power terminals, signal terminals, and a power source-side controller; the power source-side controller is configured to transmit first information to the device-side controller and receive first response information from the device-side controller within a predetermined time period.

4. The electrically motorized walk-through vehicle according to claim 3, characterized in that the battery pack further includes a discharging control module; the battery pack is configured to control the discharging control module based on communication with the electrically powered mobility vehicle or the portable medical instrument using the power source-side controller.

5. The electrically motorized walk-through vehicle according to claim 1, wherein: the battery mounting portion is configured to receive the battery pack when the battery pack is detached from the portable medical instrument.

6. The electrically motorized walk-through vehicle according to claim 1 or 5, characterized in that: the battery pack includes a first battery pack and a second battery pack, each of the first and second battery packs originally designed as a power source for the portable medical instrument.

7. The electrically motorized walk-through vehicle according to claim 1 or 5, characterized in that: a latch structure adapted to latch connect the battery pack to the battery mounting portion and an actuator located on the battery pack or the main body and operable to switch the latch structure between an engaged state and a disengaged state are provided between the battery pack and the battery mounting portion.

8. The electrically motorized walk-through vehicle according to claim 1, wherein, further comprising: a voltage conversion circuit configured inside the main body and electrically connected to the coupler and the electric motor, respectively, for converting voltage from the battery pack to an operating voltage of the electric motor.

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