WO2021093740A1 - 平衡车 - Google Patents

平衡车 Download PDF

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Publication number
WO2021093740A1
WO2021093740A1 PCT/CN2020/127893 CN2020127893W WO2021093740A1 WO 2021093740 A1 WO2021093740 A1 WO 2021093740A1 CN 2020127893 W CN2020127893 W CN 2020127893W WO 2021093740 A1 WO2021093740 A1 WO 2021093740A1
Authority
WO
WIPO (PCT)
Prior art keywords
trigger
area
membrane switch
load
waterproof
Prior art date
Application number
PCT/CN2020/127893
Other languages
English (en)
French (fr)
Inventor
李利锁
任冠佼
张令
甄旭斌
Original Assignee
纳恩博（北京）科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 纳恩博（北京）科技有限公司 filed Critical 纳恩博（北京）科技有限公司
Publication of WO2021093740A1 publication Critical patent/WO2021093740A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B62J45/40—Sensor arrangements; Mounting thereof
    • B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B62J45/40—Sensor arrangements; Mounting thereof
    • B62J45/42—Sensor arrangements; Mounting thereof characterised by mounting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K23/00—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips
    • B62K23/08—Rider-operated controls specially adapted for cycles, i.e. means for initiating control operations, e.g. levers, grips foot actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • B62M6/45—Control or actuating devices therefor
    • B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof

Definitions

  • the application relates to the technical field of balance vehicles, and specifically to a load detection device and a balance vehicle.
  • Electric balance bikes can control the speed and forward direction of the vehicle body along with the tilt of the user's body, which is becoming more and more popular among users.
  • the load detection device is used to detect whether someone is standing on the car body.
  • the communication connection between the load detection device and the controller enables the balance car to switch between the working state, the standby state and the shutdown state, which is beneficial to
  • the balance car is more intelligent, which is conducive to improving the performance of the balance car and reducing the energy consumption of the balance car.
  • the balance car usually uses photoelectric switches as the sensing element of the load detection device, but the photoelectric switch has the problems of large thickness, large longitudinal space required, and complex structure, which make it not suitable for ultra-thin car bodies, which restricts the development of the balance car .
  • the membrane switch as the sensing elements of the load detection device, making full use of the advantages of the membrane switches, such as small thickness, small vertical space required, and simple structure.
  • the membrane switch as a whole is used as the trigger area.
  • the upper conductive layer of the membrane switch is pressed down until it contacts the lower conductive layer, so that the membrane switch is triggered.
  • the middle rebound layer is used to realize the reset. Because the membrane switch is in the condition of supporting all loads for a long time, the service life of the membrane switch is lower, and the service life of the load detection device is lower.
  • the main purpose of this application is to provide a load detection device and a balance car to solve the problem of low service life of the load detection device in the prior art.
  • a load detection device which includes: a load-bearing structure, the load-bearing structure includes a load-bearing part and a trigger part arranged on the load-bearing part, the load-bearing structure is made of elastic material; a membrane switch , The membrane switch includes a trigger area opposite to the trigger part and a non-trigger area connected to the trigger area; a support structure, the support structure is connected to the support structure, and the membrane switch is arranged between the support structure and the support structure; When a load is applied, the triggering part deforms and applies pressure to the triggering area, so that the membrane switch is triggered, and a part of the supporting structure abuts against the carrying part to support the load.
  • the upper surface of the non-trigger area is higher than the upper surface of the trigger area, so that a part of the supporting structure located under the non-trigger area supports the load.
  • the non-trigger area has a relief hole
  • the support structure includes a support portion corresponding to the relief hole, the support portion extends from the relief hole, and the upper surface of the support portion is higher than the upper surface of the trigger area, so that the support portion Abuts against the load bearing part and supports the load.
  • the cross-sectional shape of the relief hole is circular or elliptical or rectangular or prismatic, and the cross-sectional shape of the support part is adapted to the cross-sectional shape of the relief hole.
  • the trigger portion is protrudingly provided on the carrying portion, the trigger portion is a plurality of the trigger portions, and the trigger region is a plurality of the trigger regions, and the multiple trigger portions are provided in a one-to-one correspondence with the multiple trigger regions.
  • the multiple trigger areas are divided into multiple pairs arranged at intervals along the first direction, and the two trigger areas in each pair are arranged at intervals along the second direction, and the first direction is perpendicular to the second direction;
  • the non-trigger areas include A first connection area extending in two directions and a second connection area extending along the first direction.
  • the first connection area is connected between the two trigger areas in each pair, and multiple first connection areas and multiple pairs of trigger areas are one-to-one
  • one second connection area is connected to multiple first connection areas.
  • the cross-sectional shape of the trigger area is circular, the cross-sectional shape of the first connection area is elongated, and the cross-sectional shape of the second connection area is elongated; and/or One end of the second connection area extends to the outermost first connection area, and the other end of the second connection area extends to the other outermost first connection area.
  • the cross-sectional shape of the trigger area is circular or long strip or square or triangle.
  • the supporting structure includes a supporting body and a waterproof platform, the waterproof platform is protrudingly arranged on the supporting body; a waterproof groove is provided on the lower surface of the bearing structure, the bearing structure abuts against the supporting body, and the waterproof platform extends into the waterproof groove, An installation space is formed between the waterproof platform and the bottom wall of the waterproof tank, and the membrane switch is installed in the installation space.
  • an installation groove is provided on the upper surface of the waterproof platform, an installation space is formed between the groove bottom wall of the installation groove and the groove bottom wall of the waterproof groove, and the membrane switch is installed in the installation groove; when a load is carried on the bearing structure, The upper surface of the waterproof platform abuts against the load-bearing part and supports the load.
  • a balance vehicle which includes the above-mentioned load detection device; wherein the support structure of the load detection device is a vehicle body, and the load-bearing structure of the load detection device is a pedal pad; and the load detection device There are two membrane switches set at intervals, and the two membrane switches are used to set one-to-one correspondence with the human feet.
  • the structure of the load detection device is optimized, the trigger area and the non-trigger area are divided on the membrane switch, and the bearing structure includes a trigger portion arranged opposite to the trigger area and a bearing portion arranged opposite to the non-trigger area
  • the trigger part deforms and exerts pressure on the trigger area, so that the membrane switch is triggered, and at the same time, the trigger area of the membrane switch does not support the load, so that part of the supporting structure abuts against the bearing part
  • the membrane switch is prevented from being in the condition of supporting all the loads for a long time, which is beneficial to improve the service life of the membrane switch.
  • FIG. 1 shows a schematic diagram of the assembly structure of the load detection device according to the first embodiment of the present application
  • FIG. 2 shows a schematic diagram of the disassembled structure of the load detection device in FIG. 1;
  • FIG. 3 shows a schematic cross-sectional structure diagram of the load detection device in FIG. 1;
  • FIG. 4 shows a schematic diagram of the disassembled structure of the load detection device according to the second embodiment of the present application.
  • FIG. 5 shows a schematic top view of the structure of the load detection device according to the third embodiment of the present application.
  • the present application provides a load detection device and a balance car.
  • the load detection device includes a bearing structure 10, a membrane switch 20, and a supporting structure 30.
  • the bearing structure 10 includes a bearing portion 11 and a trigger portion 12 provided on the bearing portion 11.
  • the bearing structure 10 is made of elastic material.
  • the membrane switch 20 includes a trigger area 21 opposite to the trigger portion 12 and a non-trigger area 22 connected to the trigger area 21.
  • the supporting structure 30 is connected to the supporting structure 10, and the membrane switch 20 is disposed on the supporting structure 10 and the supporting structure 30. Between; when the load bearing structure 10 carries a load, the trigger portion 12 deforms and applies pressure to the trigger area 21, so that the membrane switch 20 is triggered, and a part of the support structure 30 abuts against the bearing portion 11 The load is supported.
  • the structure of the load detection device is optimized.
  • a trigger area 21 and a non-trigger area 22 are divided on the membrane switch 20.
  • the carrier structure 10 includes a trigger portion 12 and a NAND trigger area that are arranged opposite to the trigger area 21. 22.
  • the upper surface of the non-trigger area 22 is higher than the upper surface of the trigger area 21 so that a part of the supporting structure 30 located under the non-trigger area 22 supports the load.
  • both the triggering portion 12 and the bearing portion 11 are elastically deformed under the pressure of the load, and because the upper surface of the non-triggering area 22 has a higher height, the bearing portion 11 first abuts the non-triggering area 22, and the non-triggering area 22 Abuts against the supporting structure 30 below it, and then the trigger portion 12 applies pressure to the trigger area 21 to trigger the membrane switch 20.
  • the force and Under the principle of reaction force a part of the supporting structure 30 corresponding to the non-triggering area 22 provides a relatively large supporting force to the supporting portion 11, so that the supporting structure 30 supports the load on the supporting structure 10, so that the membrane switch 20
  • the trigger area 21 does not support the load, which increases the service life of the membrane switch 20.
  • the trigger portion 12 is protrudingly provided on the carrier portion 11, the trigger portion 12 is a plurality of interval settings, the trigger area 21 is a plurality of interval settings, the multiple trigger portions 12 and the multiple trigger areas 21 Set in one-to-one correspondence.
  • a part of the upper surface of the membrane switch 20 is recessed to form a trigger area 21, and the unrecessed upper surface of the membrane switch 20 forms a non-trigger area 22.
  • the cross-sectional shape of the trigger area 21 is a circle or a strip or a square or a triangle, and the cross-sectional shape of the trigger portion 12 matches the cross-sectional shape of the trigger area 21.
  • the cross-sectional shape of the trigger area 21 is circular, the cross-sectional shape of the trigger portion 12 is circular, and the cross-sectional area of the trigger portion 12 is smaller than that of the trigger.
  • the cross-sectional area of the area 21 is to ensure that the triggering portion 12 can smoothly press the triggering area 21 when a load is carried on the supporting structure 10.
  • the load detection device further includes a supporting structure 30, the supporting structure 10 is connected to the supporting structure 30, and the membrane switch 20 is disposed between the supporting structure 10 and the supporting structure 30.
  • the supporting structure 30 includes a supporting plane for adhering to the membrane switch 20 to ensure that the upper surface of the non-triggering area 22 is higher than the upper surface of the triggering area 21 after the membrane switch 20 is installed on the supporting plane.
  • the membrane switch 20 is pasted on the supporting structure 30 through adhesive, which has the advantages of simple assembly and high assembly efficiency.
  • the supporting structure 30 includes a supporting body 32 and a waterproof platform 33.
  • the waterproof platform 33 is protrudingly provided on the supporting body 32; a waterproof groove 13 is provided on the lower surface of the bearing structure 10, and the bearing structure 10 In contact with the supporting body 32, the waterproof platform 33 extends into the waterproof tank 13, an installation space is formed between the waterproof platform 33 and the bottom wall of the waterproof tank 13, and the membrane switch 20 is installed in the installation space.
  • the waterproof platform 33 and the waterproof groove 13 to form a closed installation space, the waterproof performance of the load detection device is improved, and the short circuit caused by the contact of the membrane switch 20 with water is avoided.
  • the upper surface of the waterproof platform 33 is higher than the upper surface of the support body 32, even if water enters the abutment surface between the support body 32 and the bearing structure 10 during the use of the load detection device, the effect of gravity It is not easy to enter the installation space from the bottom, thereby better improving the waterproof performance of the load detection device, and more effectively avoiding the short circuit caused by the contact of the membrane switch 20 with water.
  • a waterproof groove may also be provided on the upper surface of the supporting structure 30, and a protruding waterproof platform may be provided on the lower surface of the supporting structure 10, and the supporting structure 10 and the supporting structure 30 may abut against each other.
  • the waterproof platform is extended into the waterproof tank, and a closed installation space is formed between the bottom wall of the waterproof tank and the waterproof platform.
  • the membrane switch 20 is installed in the installation space to prevent the membrane switch 20 from entering water.
  • a mounting groove 34 is provided on the upper surface of the waterproof platform 33.
  • An installation space is formed between the bottom wall of the mounting groove 34 and the bottom wall of the waterproof groove 13, and the membrane switch 20 is installed in the mounting groove. 34; when the load-bearing structure 10 carries a load, the upper surface of the waterproof platform 33 abuts against the load-bearing portion 11 and supports the load.
  • the installation slot 34 can be used to locate the installation position of the membrane switch 20, and the installation slot 34 can also use the unslotted upper surface of the waterproof platform 33 as a supporting surface, and can also be adjusted by adjusting the depth of the installation slot 34
  • the sensitivity of the membrane switch 20 can be adjusted by adjusting the intermediate support layer of the membrane switch 20, and thus the sensitivity of the load detection device can be adjusted.
  • the bottom wall of the mounting groove 34 is a smooth plane or curved surface, and the membrane switch 20 is pasted in the mounting groove 34 through adhesive or directly placed in the mounting groove 34.
  • the setting of the mounting groove 34 can play a role in positioning and The supporting function can also effectively protect the trigger part 12.
  • the outer dimension of the membrane switch 20 is adapted to the outer dimension of the mounting slot 34.
  • a portion of the upper surface of the support structure 30 arranged around the outer circumference of the membrane switch 20 and arranged in a ring shape abuts against the lower surface of the portion of the support structure 10 arranged in a ring shape to resist the load on the load bearing structure 10 and the load bearing structure 10 Support.
  • the load detection device is provided with a supporting part 31 opposite to the carrying part 11, and when the carrying structure 10 carries a load, the trigger part 12 deforms and exerts pressure on the trigger area 21.
  • the membrane switch 20 is triggered, and the trigger area 21 of the membrane switch 20 does not support the load at the same time, so that the support portion 31 located at the non-trigger area 22 abuts the load bearing portion 11 to support the load, thereby avoiding the entire membrane switch 20 Under the condition of supporting all loads for a long time, it is beneficial to increase the service life of the membrane switch 20.
  • the non-triggering area 22 has a relief hole 221.
  • the support structure 30 includes a support portion 31 corresponding to the relief hole 221.
  • the support portion 31 extends from the relief hole 221, and the upper surface of the support portion 31 is high.
  • On the upper surface of the trigger area 21 so that the supporting portion 31 abuts against the carrying portion 11 and supports the load.
  • both the triggering portion 12 and the bearing portion 11 are elastically deformed under the pressure of the load, and due to the high height of the upper surface of the supporting portion 31, the bearing portion 11 first abuts the supporting portion 31, and then the triggering portion 12 is aligned again.
  • the trigger area 21 applies pressure to trigger the membrane switch 20. Since the deformation degree of the bearing portion 11 is greater than the deformation degree of the trigger portion 12, the support portion 31 provides the support force to the bearing portion 11 under the principle of force and reaction force. It is larger, so that the supporting portion 31 supports the load on the bearing structure 10.
  • multiple relief holes 221, multiple support portions 31, and multiple support portions 31 and multiple relief holes 221 are provided in one-to-one correspondence.
  • the cross-sectional shape of the relief hole 221 is circular, elliptical, rectangular or prismatic, and the cross-sectional shape of the support portion 31 matches the cross-sectional shape of the relief hole 221 .
  • the cross-sectional shape of the relief hole 221 is square
  • the cross-sectional shape of the support portion 31 is square
  • the cross-sectional area of the support portion 31 is smaller than the cross-sectional area of the support portion 31.
  • the cross-sectional area of the position hole 221 is such that the support portion 31 protrudes from the position hole 221.
  • the cross-sectional shape of the support portion 31 may also be different from the cross-sectional shape of the relief hole 221, only to ensure that the support portion 31 can be
  • the position hole 221 extends and ensures that the contact area between the supporting portion 31 and the carrying portion 11 is sufficiently large.
  • the supporting structure 30 includes a supporting body 32 and a waterproof platform 33.
  • the waterproof platform 33 is protrudingly provided on the supporting body 32; a waterproof groove 13 is provided on the lower surface of the supporting structure 10, the supporting structure 10 and the supporting body 32 abuts, the waterproof platform 33 extends into the waterproof groove 13, the upper surface of the waterproof platform 33 is provided with an installation groove 34, the groove bottom wall of the installation groove 34 and the groove bottom wall of the waterproof groove 13 form an installation space, and the installation groove A plurality of protruding support portions 31 are provided on the bottom wall of the groove 34.
  • the membrane switch 20 is installed in the installation groove 34.
  • the support portion 31 passes through the relief hole 221 of the membrane switch 20, and the support portion 31 is away from the installation groove 34.
  • the upper surface of the bottom wall of the groove is used for abutting against the carrying part of the carrying structure 10; when the carrying structure 10 carries a load, the upper surface of the waterproof platform 33 abuts against the carrying part 11 and supports the load.
  • the waterproof platform 33, the waterproof groove 13 and the installation groove 34 are provided to form a closed installation space, thereby improving the waterproof performance of the load detection device and avoiding the short circuit caused by the contact of the membrane switch 20 with water.
  • the outer dimension of the membrane switch 20 is adapted to the outer dimension of the mounting slot 34.
  • the membrane switch 20 is arranged in a grid shape.
  • the difference between the third embodiment and the second embodiment is that in the direction perpendicular to the applied pressure, the cross-sectional shape of the relief hole 221 is elliptical, which has the advantages of simple structure and convenient processing.
  • the multiple trigger areas 21 are divided into multiple pairs arranged at intervals along the first direction, and the two trigger areas 21 in each pair are arranged at intervals along the second direction, and the first direction is perpendicular to the second direction;
  • the trigger area 22 includes a first connection area 222 extending in the second direction and a second connection area 223 extending in the first direction.
  • the first connection area 222 is connected between the two trigger areas 21 in each pair.
  • One connection area 222 is arranged in a one-to-one correspondence with multiple pairs of trigger areas 21, and one second connection area 223 is connected to multiple first connection areas 222.
  • This embodiment provides a new type of membrane switch, which has the advantages of reasonable layout, good detection effect, high service life and high sensitivity.
  • the cross-sectional shape of the trigger area 21 is circular, the cross-sectional shape of the first connection area 222 is elongated, and the cross-sectional shape of the second connection area 223 is elongated. shape.
  • the reliability, sensitivity, and service life are improved.
  • the membrane switch 20 includes three pairs of trigger regions 21, and the membrane switch 20 is arranged in the shape of "king".
  • one end of the second connection area 223 extends to the outermost first connection area 222, and the other end of the second connection area 223 extends to the other outermost first connection area 222.
  • the lead of the membrane switch 20 is led out through the extension end of the second connection area 223.
  • the application also provides a balance vehicle, which includes the above-mentioned load detection device; wherein, the support structure 30 of the load detection device is a car body, and the load-bearing structure 10 of the load detection device is a pedal pad; and a membrane switch of the load detection device 20 are two set at intervals, and the two membrane switches 20 are used to set one-to-one correspondence with the feet of a person.
  • the balance car provided by this application can reliably detect the load on the foot mat, thereby identifying whether there is a person standing on the foot mat, and when the load detection device detects that there is a user standing on the foot mat, the balance car is switched to the working mode , When the load detection device detects that there is no standing user on the foot pad, the balance car is switched to the standby mode or the shutdown mode, so that the balance car is more energy-saving and intelligent.
  • the body of the balance scooter provided in the present application is an ultra-thin body.
  • the foot pad is above the membrane switch 20, which can play a protective role; a circle around the foot pad touches the vehicle body, which plays a role of support and partial rebound.
  • the membrane switch 20 may be fixed on the vehicle body or on the foot pad.
  • the vehicle body may be hard or soft.
  • Membrane switch 20 has the advantages of high flexibility, simple assembly, and can be assembled on hard and soft planes or curved surfaces. It also has high reliability. It can achieve IP5 waterproof, not less than 100,000 times of life, and not less than 100kg. Carrying, it can work normally in high and low temperature and outdoor environment. When the balance car is in the standby state, the standby power consumption of the membrane switch 20 is low, almost zero. The sensitivity of the membrane switch 20 is high, and the triggering force is between 1kg and 5kg. The triggering force can be adjusted by adjusting the middle support layer of the membrane switch 20. In addition, the membrane switch 20 is highly expandable, can be triggered at any point, and can be connected in parallel or in series.
  • the support layer in the middle of the membrane switch 20 is used to separate the upper conductive layer and the lower conductive layer of the membrane switch 20, so that the membrane switch 20 is in an open state.
  • the support layer has a certain support strength according to the thickness and material, and can provide Certain resilience; the upper conductive layer and the lower conductive layer of the membrane switch 20 are printed with conductive silver or conductive graphite.
  • the support layer deforms and makes the upper conductive layer and the lower conductive layer conductive The layers are in contact, so that the membrane switch 20 is in a short-circuit state.
  • the conductive layer may be mesh-shaped, dot-shaped, single-point trigger, or double-point trigger.
  • the bearing portion 11 of the foot pad is directly pressed on the vehicle body, or pressed at the non-triggering area 22 of the membrane switch 20, and the trigger portion 12 of the foot pad can be directly pressed on the trigger area 21 of the membrane switch 20 And it is ensured that the membrane switch 20 will not be triggered when there is no load, and there is no need to make a partial elastic support structure.
  • the load detection device provided by the present application has the advantages of small space occupation, simple structure, convenient assembly, and high assembly efficiency.
  • the load detection device provided by the present application uses a membrane switch 20 to detect the load.
  • the membrane switch 20 is improved while ensuring the sensitivity of the membrane switch 20.
  • the service life of the 20 prevents failure of the elastic support body or the membrane switch 20 as a whole due to long-term compression.
  • the balance scooter has an ultra-thin body, can realize a lightweight design, and also has the advantage of a long maintenance cycle.
  • a load detection device characterized in that it comprises:
  • the trigger portion (12) deforms and applies pressure to the trigger area (21), so that the membrane switch (20) is triggered and the support Part of the structure of the structure (30) is in contact with the bearing portion (11) to support the load.
  • the load detection device characterized in that the upper surface of the non-trigger area (22) is higher than the upper surface of the trigger area (21) so as to be located in the non-trigger area ( 22)
  • the lower part of the supporting structure (30) supports the load.
  • the load detection device characterized in that the non-trigger area (22) has a relief hole (221), and the support structure (30) includes a relief hole ( 221) correspondingly provided support portion (31), the support portion (31) extends from the relief hole (221), and the upper surface of the support portion (31) is higher than the trigger area (21) The upper surface so that the supporting portion (31) abuts against the carrying portion (11) and supports the load.
  • the load detection device characterized in that, the number of the relief holes (221) is multiple, the support portion (31) is multiple, and the multiple support portions (31) are connected to each other. A plurality of the relief holes (221) are arranged in one-to-one correspondence.
  • the load detection device characterized in that, in the direction perpendicular to the applied pressure, the cross-sectional shape of the relief hole (221) is circular or elliptical or rectangular or edged.
  • the cross-sectional shape of the support portion (31) is adapted to the cross-sectional shape of the relief hole (221).
  • the plurality of trigger areas (21) are divided into a plurality of pairs arranged at intervals along a first direction, and the two trigger areas (21) in each pair are arranged at intervals along a second direction, the first direction and the second direction Perpendicular
  • the non-triggering area (22) includes a first connection area (222) extending along the second direction and a second connection area (223) extending along the first direction, the first connection area (222) Connected between the two trigger areas (21) in each pair, a plurality of the first connection areas (222) and a plurality of pairs of the trigger areas (21) are arranged in one-to-one correspondence, and one second connection The area (223) is connected to a plurality of the first connection areas (222).
  • the cross-sectional shape of the trigger area (21) is circular, the cross-sectional shape of the first connection area (222) is elongated, and the second connection area (223) The cross-sectional shape of is elongated; and/or
  • One end of the second connection area (223) extends to the outermost one of the first connection areas (222), and the other end of the second connection area (223) extends to the other outermost area. Said first connection area (222) outside.
  • the supporting structure (30) includes a supporting body (32) and a waterproof platform (33), and the waterproof platform (33) is protrudingly arranged on the supporting body (32);
  • a waterproof groove (13) is provided on the lower surface of the bearing structure (10), the bearing structure (10) abuts the supporting body (32), and the waterproof platform (33) extends into the waterproof groove In (13), an installation space is formed between the waterproof platform (33) and the bottom wall of the waterproof groove (13), and the membrane switch (20) is installed in the installation space.
  • the load detection device characterized in that an installation groove (34) is provided on the upper surface of the waterproof platform (33), and the groove bottom wall of the installation groove (34) and the The installation space is formed between the bottom walls of the waterproof groove (13), and the membrane switch (20) is installed in the installation groove (34); when the load-bearing structure (10) carries a load, the membrane switch (20) is installed in the installation groove (34); The upper surface of the waterproof platform (33) abuts against the load-bearing part (11) and supports the load.
  • a balance car characterized in that it comprises the load detection device according to any one of claims 1 to 11;
  • the support structure (30) of the load detection device is a car body
  • the load-bearing structure (10) of the load detection device is a footrest
  • the membrane switches (20) of the load detection device are two spaced apart ,
  • the two membrane switches (20) are used to be set in one-to-one correspondence with human feet.
  • orientation words such as “front, back, up, down, left, right", “horizontal, vertical, vertical, horizontal” and “top, bottom” and other directions indicate the orientation Or positional relationship is usually based on the positional or positional relationship shown in the drawings, which is only used to facilitate the description of the application and simplify the description. Unless otherwise stated, these positional words do not indicate or imply the pointed device or element It must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the scope of protection of the present application; the orientation word “inside, outside” refers to the inside and outside relative to the contour of each component itself.
  • spatially relative terms can be used here, such as “above”, “above”, “above the surface”, “above”, etc., to describe as shown in the figure Shows the spatial positional relationship between one device or feature and other devices or features. It should be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the device described in the figure. For example, if the device in the drawing is turned upside down, then a device described as “above other devices or structures” or “above other devices or structures” will then be positioned as “below the other devices or structures” or “on Under other devices or structures”. Thus, the exemplary term “above” can include both orientations “above” and “below”. The device can also be positioned in other different ways (rotated by 90 degrees or in other orientations), and the relative description of the space used here will be explained accordingly.

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Abstract

一种平衡车，包括：承载结构（10），承载结构（10）包括承载部（11）和设置在承载部（11）上的触发部（12），承载结构（10）由弹性材料制成；薄膜开关（20），薄膜开关（20）包括与触发部（12）相对设置的触发区域（21）以及与触发区域（21）连接的非触发区域（22）；支撑结构（30），支撑结构（30）与承载结构（10）连接，薄膜开关（20）设置在承载结构（10）和支撑结构（30）之间；当承载结构（10）上承载有负载时，触发部（12）发生形变并对触发区域（21）施加压力，以使薄膜开关（20）被触发，并使支撑结构（30）的部分结构与承载部（11）抵接以对负载进行支撑。该装置解决了现有技术中的平衡车负载检测装置的使用寿命较低的问题。

Description

平衡车
相关申请的交叉引用
本申请要求申请号为201921964411.7、申请日为2019年11月13日的中国专利申请的优先权和权益，上述中国专利申请的全部内容在此通过引用并入本申请。
技术领域
本申请涉及平衡车技术领域，具体而言，涉及一种负载检测装置和平衡车。
背景技术
电动平衡车可以随着使用者身体的倾斜控制车体行驶速度和前进方向，越来越受到用户的青睐。平衡车在使用过程中，利用负载检测装置检测车体上是否有人站立，负载检测装置和控制器之间通讯连接以使平衡车在工作状态、待机状态和关机状态之间进行切换，从而有利于平衡车更加智能化，有利于提升平衡车的使用性能，有利于降低平衡车的能耗。
目前，平衡车通常采用光电开关作为负载检测装置的感应元件，但光电开关存在本身厚度大、纵向需要空间大、结构复杂等问题，导致其无法适用于超薄车身，从而制约了平衡车的发展。
为解决这一技术问题，部分平衡车采用薄膜开关作为负载检测装置的感应元件，充分地利用了薄膜开关的本身厚度小、纵向需要空间小和结构简单等优点。但是在相关技术中，薄膜开关整体作为触发区域，负载存在时薄膜开关的上导电层整体下压直至与下导电层接触，以使薄膜开关被触发，负载取消后依靠中间的回弹层实现复位，由于薄膜开关整体处于长期支撑所有负载的情况下，从而导致了薄膜开关的使用寿命较低，进而造成负载检测装置的使用寿命较低。
申请内容
本申请的主要目的在于提供一种负载检测装置和平衡车，以解决现有技术中的负载检测装置的使用寿命较低的问题。
为了实现上述目的，根据本申请的一个方面，提供了一种负载检测装置，包括：承载结构，承载结构包括承载部和设置在承载部上的触发部，承载结构由弹性材料制成；薄膜开关，薄膜开关包括与触发部相对设置的触发区域以及与触发区域连接的非触发区域；支撑结构，支撑结构与承载结构连接，薄膜开关设置在承载结构和支撑结构之间；当承载结 构上承载有负载时，触发部发生形变并对触发区域施加压力，以使薄膜开关被触发，并使支撑结构的部分结构与承载部抵接以对负载进行支撑。
进一步地，非触发区域的上表面高于触发区域的上表面，以使位于非触发区域下方的支撑结构的部分结构支撑负载。
进一步地，非触发区域具有让位孔，支撑结构包括与让位孔对应设置的支撑部，支撑部由让位孔伸出，支撑部的上表面高于触发区域的上表面，以使支撑部与承载部抵接并支撑负载。
进一步地，让位孔为多个，支撑部为多个，多个支撑部与多个让位孔一一对应地设置。
进一步地，在与施加压力相垂直的方向上，让位孔的截面形状为圆形或椭圆形或矩形或棱形，支撑部的截面形状与让位孔的截面形状相适配。
进一步地，触发部凸出地设置在承载部上，触发部为间隔设置的多个，触发区域为间隔设置的多个，多个触发部与多个触发区域一一对应地设置。
进一步地，多个触发区域分为沿第一方向间隔布置的多对，每对中的两个触发区域沿第二方向间隔布置，第一方向与第二方向相垂直；非触发区域包括沿第二方向延伸的第一连接区域和沿第一方向延伸的第二连接区域，第一连接区域连接在每对中的两个触发区域之间，多个第一连接区域与多对触发区域一一对应设置，一个第二连接区域与多个第一连接区域均连接。
进一步地，在与施加压力相垂直的方向上，触发区域的截面形状呈圆形，第一连接区域的截面形状呈长条形，第二连接区域的截面形状呈长条形；和/或第二连接区域的一端延伸至位于最外侧的一个第一连接区域处，第二连接区域的另一端延伸至位于最外侧的另一个第一连接区域外。
进一步地，在与施加压力相垂直的方向上，触发区域的截面形状呈圆形或长条形或方形或三角形。
进一步地，支撑结构包括支撑本体和防水台，防水台凸出地设置在支撑本体上；承载结构的下表面上设有防水槽，承载结构与支撑本体抵接，防水台伸入防水槽内，防水台和防水槽的槽底壁之间形成安装空间，薄膜开关安装在安装空间内。
进一步地，防水台的上表面上设有安装槽，安装槽的槽底壁和防水槽的槽底壁之间形成安装空间，薄膜开关安装在安装槽内；当承载结构上承载有负载时，防水台的上表面与承载部抵接并支撑负载。
根据本申请的另一方面，提供了一种平衡车，平衡车包括上述的负载检测装置；其中，负载检测装置的支撑结构为车体，负载检测装置的承载结构为脚踏垫；负载检测装置的薄膜开关为间隔设置的两个，两个薄膜开关用于与人的双脚一一对应地设置。
应用本申请的技术方案，优化了负载检测装置的结构，在薄膜开关上划分了触发区域和非触发区域，在承载结构包括与触发区域相对设置的触发部和与非触发区域相对设置的承载部，当承载结构上承载有负载时，触发部发生形变并对触发区域施加压力，使薄膜开关被触发，同时使薄膜开关的触发区域不对负载进行支撑，使支撑结构的部分结构与承载部抵接以对负载进行支撑，从而避免薄膜开关整体处于长期支撑所有负载的情况下，进而有利于提升薄膜开关的使用寿命。
附图说明
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1示出了根据本申请的实施例一的负载检测装置的装配结构示意图；
图2示出了图1中的负载检测装置的拆解结构示意图；
图3示出了图1中的负载检测装置的剖视结构示意图；
图4示出了根据本申请的实施例二的负载检测装置的拆解结构示意图；
图5示出了根据本申请的实施例三的负载检测装置的俯视结构示意图；
图6示出了根据本申请的实施例四的负载检测装置的俯视结构示意图。
其中，上述附图包括以下附图标记：
10、承载结构；11、承载部；12、触发部；13、防水槽；20、薄膜开关；21、触发区域；22、非触发区域；221、让位孔；222、第一连接区域；223、第二连接区域；30、支撑结构；31、支撑部；32、支撑本体；33、防水台；34、安装槽。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本申请及其应用或使用的任何限制。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
为了解决现有技术中的负载检测装置的使用寿命较低的问题，本申请提供了一种负载检测装置和平衡车。
实施例一
如图1至图3所示，负载检测装置包括承载结构10、薄膜开关20和支撑结构30，承载结构10包括承载部11和设置在承载部11上的触发部12，承载结构10由弹性材料制成，薄膜开关20包括与触发部12相对设置的触发区域21以及与触发区域21连接的非触发区 域22，支撑结构30与承载结构10连接，薄膜开关20设置在承载结构10和支撑结构30之间；当承载结构10上承载有负载时，触发部12发生形变并对触发区域21施加压力，以使薄膜开关20被触发，并使支撑结构30的部分结构与承载部11抵接以对负载进行支撑。
在本实施例中，优化了负载检测装置的结构，在薄膜开关20上划分了触发区域21和非触发区域22，在承载结构10包括与触发区域21相对设置的触发部12和与非触发区域22相对设置的承载部11，当承载结构10上承载有负载时，触发部12发生形变并对触发区域21施加压力，使薄膜开关20被触发，同时使薄膜开关20的触发区域21不对负载进行支撑，使支撑结构30的部分结构通过薄膜开关20的非触发区域22与承载部11抵接以对负载进行支撑，从而避免薄膜开关20整体处于长期支撑所有负载的情况下，进而有利于提升薄膜开关20的使用寿命。
如图2所示，非触发区域22的上表面高于触发区域21的上表面，以使位于非触发区域22下方的支撑结构30的部分结构支撑负载。这样，触发部12和承载部11在负载的压力作用下均发生弹性形变，而由于非触发区域22的上表面的高度较高，承载部11先与非触发区域22抵接，非触发区域22和位于其下方的支撑结构30抵接，之后触发部12再对触发区域21施加压力，使薄膜开关20被触发，由于承载部11的变形程度大于触发部12的变形程度，从而在作用力和反作用力的原理下，与非触发区域22对应设置的支撑结构30的部分结构对承载部11提供的支撑力较大，进而使支撑结构30对承载结构10上的负载进行支撑，使薄膜开关20的触发区域21不对负载进行支撑，提升薄膜开关20的使用寿命。
如图2所示，触发部12凸出地设置在承载部11上，触发部12为间隔设置的多个，触发区域21为间隔设置的多个，多个触发部12与多个触发区域21一一对应地设置。
如图2所示，薄膜开关20的部分上表面下凹以形成触发区域21，薄膜开关20的未下凹的上表面形成非触发区域22。
可选地，在与施加压力相垂直的方向上，触发区域21的截面形状呈圆形或长条形或方形或三角形，触发部12的截面形状与触发区域21的截面形状相适配。
在图2示出的可选实施例中，在与施加压力相垂直的方向上，触发区域21的截面形状呈圆形，触发部12的截面形状呈圆形，触发部12的截面面积小于触发区域21的截面面积，以保证在承载结构10上承载有负载时，触发部12能够顺利地按压触发区域21。
如图1至图3所示，负载检测装置还包括支撑结构30，承载结构10与支撑结构30连接，薄膜开关20设置在承载结构10和支撑结构30之间。在本实施例中，支撑结构30包括用于与薄膜开关20贴合的支撑平面，以保证薄膜开关20安装在支撑平面上后非触发区域22的上表面高于触发区域21的上表面。
可选地，薄膜开关20通过背胶粘贴在支撑结构30上，具有装配简单、装配效率高的优点。
如图2和图3所示，支撑结构30包括支撑本体32和防水台33，防水台33凸出地设置在支撑本体32上；承载结构10的下表面上设有防水槽13，承载结构10与支撑本体32抵接，防水台33伸入防水槽13内，防水台33和防水槽13的槽底壁之间形成安装空间，薄膜开关20安装在安装空间内。这样，通过设置防水台33和防水槽13形成密闭的安装空间，从而提升负载检测装置的防水性能，避免薄膜开关20与水接触导致短路。
此外，由于防水台33的上表面高于支撑本体32的上表面，从而在负载检测装置使用过程中，即使有水进入支撑本体32和承载结构10之间的抵接表面处，在重力的作用下也不容易进入安装空间处，从而更好地提升了负载检测装置的防水性能，更加有效地避免了薄膜开关20与水接触导致短路。
在本申请未图示的可选实施例中，也可以在支撑结构30的上表面上设置防水槽，在承载结构10的下表面上设置凸出的防水台，承载结构10与支撑结构30抵接，并使防水台伸入防水槽，防水槽的槽底壁和防水台之间形成密闭的安装空间，薄膜开关20安装在安装空间内，以避免薄膜开关20进水。
如图2和图3所示，防水台33的上表面上设有安装槽34，安装槽34的槽底壁和防水槽13的槽底壁之间形成安装空间，薄膜开关20安装在安装槽34内；当承载结构10上承载有负载时，防水台33的上表面与承载部11抵接并支撑负载。这样，可以利用安装槽34对薄膜开关20的安装位置进行定位，同时安装槽34的设置还可以利用防水台33的未开槽的上表面作为支撑面，还可以通过调整安装槽34的深度调整薄膜开关20的厚度，从而可以通过调整薄膜开关20的中间支撑层来调整薄膜开关20的灵敏度，进而可以调整负载检测装置的灵敏度。
可选地，安装槽34的槽底壁为光滑的平面或曲面，薄膜开关20通过背胶粘贴在安装槽34内或者直接放置在安装槽34内，安装槽34的设置可以起到定位和支撑作用，还能有效保护触发部12。
可选地，薄膜开关20的外形尺寸与安装槽34的外形尺寸相适配。
可选地，支撑结构30的绕薄膜开关20的外周围设置的呈环形设置的部分上表面与承载结构10的呈环形设置部分下表面抵接，以对承载结构10和承载结构10上的负载进行支撑。
实施例二
实施例二与实施例一的区别在于，负载检测装置设置了与承载部11相对设置的支撑部31，当承载结构10上承载有负载时，触发部12发生形变并对触发区域21施加压力，使薄 膜开关20被触发，同时使薄膜开关20的触发区域21不对负载进行支撑，使位于非触发区域22处的支撑部31与承载部11抵接以对负载进行支撑，从而避免薄膜开关20整体处于长期支撑所有负载的情况下，进而有利于提升薄膜开关20的使用寿命。
如图4所示，非触发区域22具有让位孔221，支撑结构30包括与让位孔221对应设置的支撑部31，支撑部31由让位孔221伸出，支撑部31的上表面高于触发区域21的上表面，以使支撑部31与承载部11抵接并支撑负载。这样，触发部12和承载部11在负载的压力作用下均发生弹性形变，而由于支撑部31的上表面的高度较高，承载部11先与支撑部31抵接，之后触发部12再对触发区域21施加压力，使薄膜开关20被触发，由于承载部11的变形程度大于触发部12的变形程度，从而在作用力和反作用力的原理下，支撑部31对承载部11提供的支撑力较大，进而使支撑部31对承载结构10上的负载进行支撑。
如图4所示，让位孔221为多个，支撑部31为多个，多个支撑部31与多个让位孔221一一对应地设置。
可选地，在与施加压力相垂直的方向上，让位孔221的截面形状为圆形或椭圆形或矩形或棱形，支撑部31的截面形状与让位孔221的截面形状相适配。
在图4示出的可选实施例中，在与施加压力相垂直的方向上，让位孔221的截面形状呈方形设置，支撑部31的截面形状呈方形，支撑部31的截面面积小于让位孔221的截面面积，以便于支撑部31由让位孔221处伸出。
在本申请的未图示的可选实施例中，在与施加压力相垂直的方向上，支撑部31的截面形状也可以与让位孔221的截面形状不同，只有保证支撑部31可以由让位孔221伸出并保证支撑部31和承载部11之间的接触面积足够大即可。
如图4所示，支撑结构30包括支撑本体32和防水台33，防水台33凸出地设置在支撑本体32上；承载结构10的下表面上设有防水槽13，承载结构10与支撑本体32抵接，防水台33伸入防水槽13内，防水台33的上表面上设有安装槽34，安装槽34的槽底壁和防水槽13的槽底壁之间形成安装空间，安装槽34的槽底壁上设有多个凸出设置的支撑部31，薄膜开关20安装在安装槽34内，支撑部31穿过薄膜开关20的让位孔221，支撑部31的远离安装槽34的槽底壁的上表面用于与承载结构10的承载部抵接；当承载结构10上承载有负载时，防水台33的上表面与承载部11抵接并支撑负载。这样，通过设置防水台33、防水槽13和安装槽34以形成密闭的安装空间，从而提升负载检测装置的防水性能，避免薄膜开关20与水接触导致短路。
可选地，薄膜开关20的外形尺寸与安装槽34的外形尺寸相适配。
如图4所示，薄膜开关20呈网格状设置。
实施例三
如图5所示，实施例三与实施例二的区别在于，在与施加压力相垂直的方向上，让位孔221的截面形状为椭圆形，具有结构简单、方便加工的优点。
实施例四
如图6所示，多个触发区域21分为沿第一方向间隔布置的多对，每对中的两个触发区域21沿第二方向间隔布置，第一方向与第二方向相垂直；非触发区域22包括沿第二方向延伸的第一连接区域222和沿第一方向延伸的第二连接区域223，第一连接区域222连接在每对中的两个触发区域21之间，多个第一连接区域222与多对触发区域21一一对应设置，一个第二连接区域223与多个第一连接区域222均连接。本实施例提供了一种新型的薄膜开关，具有布局合理、检测效果好、使用寿命高和灵敏度高等优点。
如图6所示，在与施加压力相垂直的方向上，触发区域21的截面形状呈圆形，第一连接区域222的截面形状呈长条形，第二连接区域223的截面形状呈长条形。这样，在对薄膜开关20的触发区域21和非触发区域22的形状进行优化后，可靠性、灵敏度和使用寿命均有提升。
可选地，薄膜开关20包括3对触发区域21，薄膜开关20呈“王”字形状设置。
如图6所示，第二连接区域223的一端延伸至位于最外侧的一个第一连接区域222处，第二连接区域223的另一端延伸至位于最外侧的另一个第一连接区域222外。可选地，薄膜开关20的引线通过第二连接区域223的伸出端引出。
本申请还提供了一种平衡车，平衡车包括上述的负载检测装置；其中，负载检测装置的支撑结构30为车体，负载检测装置的承载结构10为脚踏垫；负载检测装置的薄膜开关20为间隔设置的两个，两个薄膜开关20用于与人的双脚一一对应地设置。本申请提供的平衡车能够可靠地对脚踏垫上的负载进行检测，从而识别出平衡车上是否有站立有人，当负载检测装置检测到脚踏垫上站立有使用者时，切换平衡车至工作模式，当负载检测装置检测到脚踏垫上没有站立使用者时，切换平衡车至待机模式或关机模式，从而使平衡车更加节能和智能。
可选地，本申请提供的平衡车的车体为超薄车体。
可选地，脚踏垫在薄膜开关20上方，可以起到保护作用；脚踏垫的周围一圈接触车体，起到支撑和部分回弹作用。
可选地，薄膜开关20可以固定在车体上或者固定在脚踏垫上。
可选地，车体可以是硬质也可以是软质。
薄膜开关20具有灵活度高，装配简单，可装配于硬质、软质的平面或曲面的优点，还具有可靠性高，可实现IP5级防水、不低于10万次寿命、不低于100kg承载，可以在高低温和室外环境下正常工作的优点。当平衡车处于待机状态时，薄膜开关20的待机耗电极低， 几乎为零。薄膜开关20的灵敏度高，触发力在1kg～5kg之间，可通过调整薄膜开关20的中间支撑层来调整触发力的大小。此外，薄膜开关20的扩展性强，可实现任意点位触发，可多个并联、串联。
其中，薄膜开关20中间的支撑层用于隔开薄膜开关20的上导电层和下导电层，使薄膜开关20处于断路状态，支撑层根据厚度和材料不同，有一定的支撑力度，并且能提供一定的回弹力；薄膜开关20的上导电层和下导电层上印有导电银或者导电石墨，当上导电层和/或下导电层受到外力时，支撑层变形并使上导电层和下导电层接触，从而使薄膜开关20处于短路状态。
可选地，导电层可为网状、点状、单点触发或双点触发。
可选地，脚踏垫的承载部11直接压在车体上，或者压在薄膜开关20的非触发区域22处，脚踏垫的触发部12可以直接压在薄膜开关20的触发区域21上并保证薄膜开关20在没有负载的情况下不被触发，无需做局部做弹性支撑体的结构。
本申请提供的负载检测装置与相关技术中采用厚度为12mm的光电开关和应变片进行检测的技术方案相比，具有占用空间小、结构简单、装配方便和装配效率高的优点。本申请提供的负载检测装置采用薄膜开关20对负载进行检测，与相关技术中采用弹性支撑结构对薄膜开关20进行支撑的技术方案相比，在保证薄膜开关20的灵敏性的同时提升了薄膜开关20的使用寿命，避免弹性支撑体或薄膜开关20整体长期受压导致失效。
在将本申请提供负载检测装置应用在平衡车上时，由于薄膜开关20的结构简单和占用空间小的优点，从而不影响平衡车的支撑结构30即车体的设计，进而使本申请提供的平衡车具有超薄车体，能够实现轻量化设计，还具有维护周期长的优点。
1、一种负载检测装置，其特征在于，包括：
承载结构(10)，所述承载结构(10)包括承载部(11)和设置在所述承载部(11)上的触发部(12)，所述承载结构(10)由弹性材料制成；
薄膜开关(20)，所述薄膜开关(20)包括与所述触发部(12)相对设置的触发区域(21)以及与所述触发区域(21)连接的非触发区域(22)；
支撑结构(30)，所述支撑结构(30)与所述承载结构(10)连接，所述薄膜开关(20)设置在所述承载结构(10)和支撑结构(30)之间；当所述承载结构(10)上承载有负载时，所述触发部(12)发生形变并对所述触发区域(21)施加压力，以使所述薄膜开关(20)被触发，并使所述支撑结构(30)的部分结构与所述承载部(11)抵接以对所述负载进行支撑。
2、根据权利要求1所述的负载检测装置，其特征在于，所述非触发区域(22)的上表面高于所述触发区域(21)的上表面，以使位于所述非触发区域(22)下方的所述支撑结 构(30)的部分结构支撑所述负载。
3、根据权利要求1或2所述的负载检测装置，其特征在于，所述非触发区域(22)具有让位孔(221)，所述支撑结构(30)包括与所述让位孔(221)对应设置的支撑部(31)，所述支撑部(31)由所述让位孔(221)伸出，所述支撑部(31)的上表面高于所述触发区域(21)的上表面，以使所述支撑部(31)与所述承载部(11)抵接并支撑所述负载。
4、根据权利要求3所述的负载检测装置，其特征在于，所述让位孔(221)为多个，所述支撑部(31)为多个，多个所述支撑部(31)与多个所述让位孔(221)一一对应地设置。
5、根据权利要求3或4所述的负载检测装置，其特征在于，在与施加压力相垂直的方向上，所述让位孔(221)的截面形状为圆形或椭圆形或矩形或棱形，所述支撑部(31)的截面形状与所述让位孔(221)的截面形状相适配。
6、根据权利要求1至5中任一项所述的负载检测装置，其特征在于，所述触发部(12)凸出地设置在所述承载部(11)上，所述触发部(12)为间隔设置的多个，所述触发区域(21)为间隔设置的多个，多个所述触发部(12)与多个所述触发区域(21)一一对应地设置。
7、根据权利要求6所述的负载检测装置，其特征在于，
多个所述触发区域(21)分为沿第一方向间隔布置的多对，每对中的两个触发区域(21)沿第二方向间隔布置，所述第一方向与所述第二方向相垂直；
所述非触发区域(22)包括沿所述第二方向延伸的第一连接区域(222)和沿所述第一方向延伸的第二连接区域(223)，所述第一连接区域(222)连接在每对中的两个所述触发区域(21)之间，多个所述第一连接区域(222)与多对所述触发区域(21)一一对应设置，一个所述第二连接区域(223)与多个所述第一连接区域(222)均连接。
8、根据权利要求7所述的负载检测装置，其特征在于，
在与施加压力相垂直的方向上，所述触发区域(21)的截面形状呈圆形，所述第一连接区域(222)的截面形状呈长条形，所述第二连接区域(223)的截面形状呈长条形；和/或
所述第二连接区域(223)的一端延伸至位于最外侧的一个所述第一连接区域(222)处，所述第二连接区域(223)的另一端延伸至位于最外侧的另一个所述第一连接区域(222)外。
9、根据权利要求2至7中任一项所述的负载检测装置，其特征在于，在与施加压力相垂直的方向上，所述触发区域(21)的截面形状呈圆形或长条形或方形或三角形。
10、根据权利要求1至9中任一项所述的负载检测装置，其特征在于，
所述支撑结构(30)包括支撑本体(32)和防水台(33)，所述防水台(33)凸出地设置在所述支撑本体(32)上；
所述承载结构(10)的下表面上设有防水槽(13)，所述承载结构(10)与所述支撑本体(32)抵接，所述防水台(33)伸入所述防水槽(13)内，所述防水台(33)和所述防水槽(13)的槽底壁之间形成安装空间，所述薄膜开关(20)安装在所述安装空间内。
11、根据权利要求10所述的负载检测装置，其特征在于，所述防水台(33)的上表面上设有安装槽(34)，所述安装槽(34)的槽底壁和所述防水槽(13)的槽底壁之间形成所述安装空间，所述薄膜开关(20)安装在所述安装槽(34)内；当所述承载结构(10)上承载有负载时，所述防水台(33)的上表面与所述承载部(11)抵接并支撑所述负载。
12、一种平衡车，其特征在于，所述平衡车包括权利要求1至11中任一项所述的负载检测装置；
其中，所述负载检测装置的支撑结构(30)为车体，所述负载检测装置的承载结构(10)为脚踏垫；所述负载检测装置的薄膜开关(20)为间隔设置的两个，两个所述薄膜开关(20)用于与人的双脚一一对应地设置。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本申请的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合。
除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本申请的范围。同时，应当明白，为了便于描述，附图中所示出的各个部分的尺寸并不是按照实际的比例关系绘制的。对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为授权说明书的一部分。在这里示出和讨论的所有示例中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它示例可以具有不同的值。应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
在本申请的描述中，需要理解的是，方位词如“前、后、上、下、左、右”、“横向、竖向、垂直、水平”和“顶、底”等所指示的方位或位置关系通常是基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，在未作相反说明的情况下，这些方位词并不指示和暗示所指的装置或元件必须具有特定的方位或者以特定的方位构造和操作，因此不能理解为对本申请保护范围的限制；方位词“内、外”是指相对于各部件本身的轮廓的内外。
为了便于描述，在这里可以使用空间相对术语，如“在……之上”、“在……上方”、“在……上表面”、“上面的”等，用来描述如在图中所示的一个器件或特征与其他器件或特征的空间位置关系。应当理解的是，空间相对术语旨在包含除了器件在图中所描述的方位之外的在使用或操作中的不同方位。例如，如果附图中的器件被倒置，则描述为“在其他器件或构造上方”或“在其他器件或构造之上”的器件之后将被定位为“在其他器件或构造下方”或“在其他器件或构造之下”。因而，示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。该器件也可以其他不同方式定位(旋转90度或处于其他方位)，并且对这里所使用的空间相对描述作出相应解释。
需要说明的是，本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施方式能够以除了在这里图示或描述的那些以外的顺序实施。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (13)

  1. 一种平衡车，其特征在于，包括车体、脚踏垫和薄膜开关，所述脚踏垫包括承载部和设置在所述承载部上的触发部，所述薄膜开关包括与所述触发部相对设置的触发区域和与所述触发区域相接的非触发区域，所述脚踏垫与所述车体连接，所述薄膜开关设置在所述脚踏垫和车体之间，所述触发部可弹性变形以对所述触发区域施加压力而触发所述薄膜开关且所述承载部与所述车体抵接。
  2. 根据权利要求1所述的平衡车，其特征在于，所述非触发区域的上表面高于所述触发区域的上表面。
  3. 根据权利要求1或2所述的平衡车，其特征在于，所述非触发区域具有让位孔，所述车体包括支撑部，所述支撑部从所述让位孔向上伸出，所述支撑部的上表面高于所述触发区域的上表面，所述触发部弹性变形时所述支撑部与所述承载部抵接。
  4. 根据权利要求3所述的平衡车，其特征在于，所述让位孔为多个，所述支撑部为多个，多个所述支撑部与多个所述让位孔一一对应。
  5. 根据权利要求3所述的平衡车，其特征在于，在与施加压力相垂直的方向上，所述让位孔的截面形状为圆形或椭圆形或矩形或棱形，所述支撑部的截面形状与所述让位孔的截面形状相适配。
  6. 根据权利要求3-5中任一项所述的平衡车，其特征在于，所述车体还包括支撑本体和防水台，所述防水台凸出地设在所述支撑本体上，所述支撑部设在所述支撑本体上且位于所述防水台内；
    所述脚踏垫的下表面上设有防水槽，所述脚踏垫与所述支撑本体抵接，所述防水台伸入所述防水槽内，所述防水台和所述防水槽的槽底壁之间形成安装空间，所述薄膜开关安装在所述安装空间内。
  7. 根据权利要求6所述的平衡车，其特征在于，所述防水台的上表面设有安装槽，所述安装槽的槽底壁和所述防水槽的槽底壁之间形成所述安装空间，所述薄膜开关设在所述安装槽的槽底壁上，所述触发部弹性变形时所述防水台的上表面与所述承载部抵接。
  8. 根据权利要求1-7中任一项所述的平衡车，其特征在于，所述触发部从所述承载部向下凸出。
  9. 根据权利要求1-8中任一项所述的平衡车，其特征在于，所述触发部为间隔设置的多个，所述触发区域为间隔设置的多个，多个所述触发部与多个所述触发区域一一对应地设置。
  10. 根据权利要求9所述的平衡车，其特征在于，
    多个所述触发区域分为沿第一方向间隔布置的多对，每对中的两个触发区域沿第二方向间隔布置，所述第一方向与所述第二方向相垂直；
    所述非触发区域包括沿所述第二方向延伸的第一连接区域和沿所述第一方向延伸的第二连接区域，所述第一连接区域连接在每对中的两个所述触发区域之间，多个所述第一连接区域与多对所述触发区域一一对应设置，一个所述第二连接区域与多个所述第一连接区域均连接。
  11. 根据权利要求10所述的平衡车，其特征在于，
    在与施加压力相垂直的方向上，所述触发区域的截面形状呈圆形，所述第一连接区域的截面形状呈长条形，所述第二连接区域的截面形状呈长条形；和/或
    所述第二连接区域的一端延伸至位于最外侧的一个所述第一连接区域处，所述第二连接区域的另一端延伸至位于最外侧的另一个所述第一连接区域外。
  12. 根据权利要求2至10中任一项所述的平衡车，其特征在于，在与施加压力相垂直的方向上，所述触发区域的截面形状呈圆形或长条形或方形或三角形。
  13. 根据权利要求1-12中任一项所述的平衡车，其特征在于，所述薄膜开关为两个且与人的双脚踏在所述脚踏垫上的位置一一对应。
PCT/CN2020/127893 2019-11-13 2020-11-10 平衡车 WO2021093740A1 (zh)

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