WO2021254212A1

WO2021254212A1 - Upper housing assembly and self-balancing vehicle thereof

Info

Publication number: WO2021254212A1
Application number: PCT/CN2021/098895
Authority: WO
Inventors: 臧传美
Original assignee: 浙江阿尔郎科技有限公司
Priority date: 2020-06-19
Filing date: 2021-06-08
Publication date: 2021-12-23
Also published as: CN212709805U

Abstract

An upper housing assembly and a self-balancing vehicle thereof. The upper housing assembly comprises a pedal (30) and an upper housing; the pedal (30) is movably provided on the upper housing; a photoelectric switch assembly (10) is provided on the upper housing; and the photoelectric switch assembly (10) is provided corresponding to the rotating axis (42) of a wheel and is located below the pedal (30). The photoelectric switch assembly (10) is provided on the upper housing and is located below the pedal (30), so that the photoelectric switch assembly is closer to the pedal (30); and the photoelectric switch assembly (10) is closer to the pedal (30), and thus, the pedal (30) more easily triggers the photoelectric switch assembly (10), thereby detecting whether a person stands on the pedal (30), improving the accuracy and agility of the sensing of the pedal, and reducing the case of erroneous determination of the self-balancing vehicle.

Description

Upper shell assembly and balance car

Technical field

The utility model relates to the technical field of balance cars, in particular to an upper shell assembly and a balance car.

Background technique

The operating principle of the electric balance car is mainly based on a basic principle called "dynamic stability". It uses the gyroscope and acceleration sensor inside the car body to detect the change of the car body's attitude, and uses the servo control system. The drive motor is adjusted accordingly to maintain the balance of the system. It is a new type of green and environmentally friendly product used by modern people as a means of transportation, leisure and entertainment. Generally, a two-wheeled electric balance car mainly includes two hub motors with axles, a pedal located between the two hub motors, etc. .

Existing balance cars generally use photoelectric switches to detect whether people are standing on the balance cars. Therefore, the photoelectric switches are generally arranged under the pedals. The relative movement of the pedals and the car body is used to determine whether people are standing on the pedals. Such a structure will cause inconvenience in installation. Difficulty in maintenance. At the same time, due to the need to control the balance car, the pedal needs to swing back and forth. Correspondingly, there are two photoelectric switches. It is easy to cause one to be triggered and the other is not triggered, which leads to the phenomenon of loss of control of the balance car.

Utility model content

In order to overcome the shortcomings of the prior art, one of the objectives of the present invention is to provide an upper housing assembly with a photoelectric switch assembly that can be triggered more accurately.

The second purpose of the present invention is to provide a balance car, which adopts the upper shell assembly, the pedaling induction is more accurate and agile, and prevents the balance car from being misjudged.

One of the purposes of the utility model is achieved by the following technical solutions:

An upper housing assembly, characterized in that it comprises a pedal and an upper housing, the pedal is movably arranged on the upper housing, the upper housing is provided with a photoelectric switch assembly, the photoelectric switch assembly and the wheel The rotation axis of is correspondingly arranged, and is located below the pedal.

Preferably, the height of the photoelectric switch assembly is not lower than the height of the rotation axis.

Preferably, an installation slot for installing the photoelectric switch assembly is provided on the upper housing, and the photoelectric switch assembly is placed in the installation slot.

Preferably, a clamping piece is provided on the side wall of the mounting groove, the clamping piece is in clearance fit with the side wall of the mounting groove, and the clamping piece is provided with a side wall facing the photoelectric switch assembly. The clamping block to which the photoelectric switch assembly is clamped; and/or,

A first threaded hole is provided in the mounting groove, a second threaded hole is provided on the photoelectric switch component, and the photoelectric switch component is fixedly connected to the mounting groove by a screw.

Preferably, the photoelectric switch assembly includes a photoelectric switch circuit board, a photoelectric switch, and a connector. The photoelectric switch circuit board and the control circuit board are arranged separately, and the photoelectric switch is arranged on the photoelectric switch circuit board. The connector connects the photoelectric switch circuit board and the control circuit board, and is used for transmitting electrical signals between the photoelectric switch circuit board and the control circuit board.

Preferably, the upper housing is provided with a cable hole for the connector to pass through; the cable hole is provided with a wire clamping port;

The wire passing hole is located on one side or both sides of the upper casing, or the wire passing hole is located on one side or both sides of the mounting groove.

Preferably, two ends of the connector are provided with connectors, and the photoelectric switch circuit board is provided with a connector for fixing the connector, and the connector is mated with the connector to realize a photoelectric switch. Electrical connection with a connector; or, the connector is fixedly connected with the photoelectric switch circuit board.

Preferably, the photoelectric switch is located on the upper surface of the photoelectric switch circuit board; the connecting seat or the fixing point of the connector and the photoelectric switch circuit board is located on the upper surface of the photoelectric switch circuit board, or, The fixing point of the connecting seat or the connecting member and the photoelectric switch circuit board is located on the lower surface of the photoelectric switch circuit board.

Preferably, the connecting piece is a wire, or the connecting piece is a hard connecting piece with a built-in wire.

Preferably, the pedal is provided with a contact at a position corresponding to the photoelectric switch in the photoelectric switch assembly; the upper shell is provided with a spring mounting hole, and the pedal is provided with a spring mounting post and a A connecting column movably connected to the upper housing, the mounting column is adapted to the spring mounting hole, one end of the spring is connected to the mounting column, and the other end is connected to the spring mounting hole to realize the The rebound of the pedal; the contact is a rectangular sheet structure.

The second purpose of this utility model is achieved by adopting the following technical solutions:

A balance vehicle includes a vehicle body and wheels. The vehicle body includes a housing and a control circuit board located in the housing. The housing includes the upper housing assembly as described above, and the photoelectric switch assembly passes through a connector It is electrically connected with the control circuit board.

Compared with the prior art, the beneficial effects of the present invention are:

In the utility model, the photoelectric switch assembly is arranged on the upper shell, under the pedal, so that it is closer to the pedal, and is arranged corresponding to the rotation axis of the wheel, which is equivalent to being arranged in the middle position of the upper shell, and can conduct the pedal more accurately. The distance between the photoelectric switch assembly and the pedal is closer, the pedal is easier to trigger the photoelectric switch assembly, thereby detecting whether people are standing on the pedal, improving the accuracy and agility of pedaling induction, and reducing the misjudgment of the balance car. Thereby, the operation safety of the balance vehicle is effectively improved; the photoelectric switch assembly located on the upper shell makes the installation and maintenance of the photoelectric switch assembly more convenient.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the upper housing assembly of the embodiment of the present invention;

2 is a schematic diagram of the installation structure of the photoelectric switch assembly and the upper casing of the embodiment of the present invention;

Figure 3 is a schematic diagram of the exploded structure of the balance car according to the embodiment of the utility model;

Fig. 4 is a schematic diagram of an exploded structure of the balance scooter according to the embodiment of the present invention from another angle.

In the figure: 10, photoelectric switch assembly; 11, photoelectric switch; 12, photoelectric switch circuit board; 13, connection seat; 14, connector; 15, connector; 20, upper shell; 21, mounting slot; 22, card Connector; 23, clamp block; 24, gap; 25, wire hole; 26, wire clamp port; 27, spring mounting hole; 30, pedal; 31, contact; 32, spring; 33, mounting post; 34, Connecting column; 40, housing; 41, control circuit board; 42, rotation axis; 43, wheels; 44, motor shaft.

detailed description

Hereinafter, the present utility model will be described in more detail with reference to the accompanying drawings. It should be noted that the following description of the present utility model with reference to the accompanying drawings is only illustrative and not restrictive. Various embodiments can be combined with each other to form other embodiments not shown in the following description.

In the description of the present utility model, it should be noted that for orientation words, if there are the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower" ", "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Reverse The indicating position and positional relationship such as "hour hand" are based on the position or positional relationship shown in the drawings, and are only used to facilitate the description of the present utility model and simplify the description, rather than indicating or implying that the device or element referred to must have a specific position to The specific orientation structure and operation cannot be understood as limiting the specific protection scope of the present utility model.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features may explicitly or implicitly include one or more of these features. In the description of the present utility model, "several" means two or more than two, unless There are also clear and specific restrictions.

In the present utility model, unless otherwise clearly specified and limited, the terms "assembly", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection, or Integrally connected; it can also be mechanically connected; it can be directly connected, or it can be connected through an intermediate medium, and the two components can be connected internally. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present utility model can be understood according to specific circumstances.

Referring to Figures 1 to 4, the upper housing assembly and its balance car of the embodiment of the present invention will be clarified in the following description, in which the photoelectric switch assembly 10 is arranged on the upper housing 20, and the photoelectric switch assembly and The rotation axis of the wheel is arranged correspondingly, which solves the problem that the pedaling induction of the existing balance car is easy to fail, and the distance between the pedal 30 and the photoelectric switch assembly 10 is pulled in, which improves the sensitivity of the pedaling induction and prevents the balance car from making misjudgments.

As shown in Figures 1 to 4, the present invention designs an upper housing assembly, which includes a pedal 30 and an upper housing. The pedal 30 is movably arranged on the upper housing 20 and can rotate relative to the upper housing. A photoelectric switch assembly 10 is provided on the upper shell, and the photoelectric switch assembly is arranged corresponding to the rotation axis 42 of the wheel and is not lower than the height of the rotation axis 42.

The photoelectric switch assembly 10 is arranged on the upper shell so that it is closer to the pedal 30. The distance between the photoelectric switch assembly 10 and the pedal 30 is closer. The accuracy and agility of pedaling induction are reduced, and the misjudgment of the balance car is reduced, thereby effectively improving the operation safety of the balance car; the photoelectric switch assembly 10 located on the upper shell makes the installation and maintenance of the photoelectric switch assembly 10 easier convenient.

The photoelectric switch assembly is arranged corresponding to the rotation axis 42 of the wheel, and is not lower than the height of the rotation axis 42. The movement of the pedal 30 can be more accurately fed back to the photoelectric switch, so as to determine whether a person is standing on the pedal 30 and further improve the pedaling sensitivity. Accuracy. More specifically, the rotation axis 42 of the wheel 43 is the center line of the motor shaft 44 of the wheel 43, which corresponds to the middle position of the upper casing. Therefore, the photoelectric switch assembly is arranged in the middle position of the upper casing, which is higher than the rotation of the wheel 43. The axis 42 or is flush with the rotation axis 42 of the wheel 43, so that the photoelectric switch is closer to the pedal. Arranging the photoelectric switch in the middle position of the upper shell can more accurately transmit the force of the pedal, thereby improving the accuracy of pedaling induction.

In order to fix the photoelectric switch assembly 10, an installation groove 21 for installing the photoelectric switch assembly 10 is provided on the upper shell, and the photoelectric switch assembly 10 is placed in the installation groove 21. Preferably, the depth of the mounting groove 21 is greater than or equal to the height of the photoelectric switch assembly 10 to prevent the pedal 30 from squeezing and damaging the photoelectric switch assembly 10 when moving relative to the upper housing.

There are many ways to connect the photoelectric switch assembly 10 and the mounting groove 21. One is: a clamping member 22 is provided on the side wall of the mounting groove 21, and the clamping member 22 is in clearance fit with the side wall of the mounting groove 21. There is a gap 24 therebetween, and the side of the clamping member 22 facing the photoelectric switch assembly 10 is provided with a clamping block 23 for clamping the photoelectric switch assembly 10; preferably, the clamping block 23 is provided with a guiding inclined surface. The switch assembly 10 is put into the installation slot 21 from above the installation slot 21, the photoelectric switch assembly 10 gradually moves down to contact with the guide inclined surface of the block 23, and continues to move downward until the clamping piece 22 is pushed to move to both sides. A gap 24 is provided between 22 and the side wall of the mounting groove 21, and the clamping member 22 can be deformed appropriately until the photoelectric switch assembly 10 moves below the clamping block 23, and the clamping member 22 rebounds to make the clamping block 23 set It is above the photoelectric switch assembly 10 to prevent the photoelectric switch assembly 10 from falling out of the installation slot 21 and facilitate the installation of the photoelectric switch assembly. The other is: a first threaded hole is provided in the mounting slot 21, a second threaded hole is provided on the photoelectric switch assembly 10, and the photoelectric switch assembly 10 is fixedly connected to the mounting slot 21 by screws; during installation, the photoelectric switch assembly 10 is removed from The upper part of the installation groove 21 is put into the installation groove 21 and moved down, so that the first threaded hole and the second threaded hole are aligned, and then the photoelectric switch assembly 10 is locked in the installation groove 21 by screws. Of course, in some embodiments, the fixing structure of the clamping member 22 and the screw hole may also exist at the same time, so as to further ensure that the photoelectric switch assembly 10 is installed in the installation groove 21 stably and accurately.

As shown in Figure 2, the photoelectric switch assembly 10 includes a photoelectric switch circuit board, a photoelectric switch, and connectors. The photoelectric switch circuit board and the control circuit board are separately arranged. The photoelectric switch is arranged on the photoelectric switch circuit board, and the connector is connected to the photoelectric switch. The circuit board and the control circuit board are used to transmit electrical signals between the photoelectric switch circuit board and the control circuit board. The photoelectric switch is arranged on a separate photoelectric switch circuit board 12 and is separated from the control circuit board 41, which facilitates the installation of the photoelectric switch and reduces the influence of the photoelectric switch on the control circuit board 41. The photoelectric switch 11 includes a U-shaped detection head for detecting whether it is triggered, so as to determine whether a person is standing on the pedal 30.

Preferably, the upper housing is provided with a wire hole 25 through which the connecting piece 14 passes, and the connecting piece 14 passes through the wire hole 25 to realize the signal transmission between the photoelectric switch and the control circuit board 41; more specifically, the wire hole There is a wire-locking port 26 in 25, and the connecting piece 14 passes through the wire-locking opening 26 to prevent the connecting piece 14 from moving at will, and avoiding being squeezed by the pedal, so that the wiring on the upper shell is more tidy, while ensuring the photoelectric switch and The signal transmission between the control circuit boards 41 is more stable. The wire passing holes are located on both sides of the upper shell, or the wire passing holes are located on both sides of the installation groove, or the wire passing holes are located at the bottom of the installation groove. As shown in Fig. 2, the cable hole is provided on the side of the installation slot.

There are many ways to connect the connector 14 to the photoelectric switch circuit board 12. One is: the photoelectric switch circuit board 11 is provided with a connector 13 for fixing the connector 14, and the two ends of the connector 14 are provided with a connector 15 and one end The connector 15 is plugged into the connector, and the connector at the other end is plugged into the control circuit board; the connector 13 is electrically connected to the photoelectric switch. This connection method makes the connection between the connector and the photoelectric switch more firm and stable. Conducive to the stable transmission of electrical signals. The other is: the connector 14 is fixedly connected to the photoelectric switch circuit board 12, for example, the connector 14 is directly fixed on the photoelectric switch circuit board 12 by welding. This connection method is simpler and faster, with fewer parts, and cost. Lower.

In order to facilitate the connector 14 to pass through the wire hole 25, preferably, as shown in FIG. 2, the photoelectric switch is located on the upper surface of the photoelectric switch circuit board 12, and the fixing point of the connector 13 or the connector 14 and the photoelectric switch circuit board 12 is located at The upper surface of the photoelectric switch circuit board 12. There are many options for the material of the connecting piece 14. For example, the connecting piece 14 is a wire, which is a flexible material and can be bent at will to meet the needs of the different positional relationship between the photoelectric switch circuit board 12 and the control circuit board 41, or the connecting piece 14 is The hard connector 14 with built-in wires is beneficial to protect the wires, and the specific shape of the hard connector 14 is set according to the different positional relationship between the photoelectric switch circuit board 12 and the control circuit board 41.

The pedal 30 can move relative to the upper shell and trigger the photoelectric switch when a person stands on it. Therefore, the lower surface of the pedal 30 is provided with a contact 31 at a position corresponding to the photoelectric switch. The contact may be a rectangular sheet or Other conventional shapes, length and width are adapted to the position of the photoelectric switch and the U-shaped detection head. When force is applied to the pedal 30, the pedal 30 moves down, the contact 31 triggers the photoelectric switch, and the balance car starts to work; at the same time, after the force on the pedal 30 disappears, the pedal 30 needs to reset to stop triggering the photoelectric switch. Therefore, the upper shell The body is provided with a spring mounting hole 27, and the pedal 30 is provided with a mounting post 33 for mounting the spring 32 and a connecting post 34 for movably connecting with the upper shell. The mounting post 33 is matched with the spring mounting hole 27, and the spring 32 One end is connected with the mounting post 33, and the other end is connected with the spring mounting hole or against the bottom of the spring mounting hole, so as to realize the rebound of the pedal 30. As shown in FIG. 4, the mounting post 33 is located on the lower surface of the pedal 30. At the same time, the spring surrounds the mounting post 33 and is arranged in the spring mounting hole 27. In the specific example shown in FIG. 4, the spring mounting hole 27 is non-through Hole, one end of the spring abuts against the bottom wall of the spring mounting hole 27. In other embodiments, the spring mounting hole 27 may be a through hole, and the bottom of the spring mounting hole 27 is provided with a protruding edge against the spring, so that the spring can expand and contract between the protruding edge and the pedal 30, and the spring mounting hole 27 The through holes can have other functions, such as facilitating the maintenance of parts in the upper casing or allowing the contacts 31 of other photoelectric switches to pass through. The upper shell is provided with a through hole for the connecting post 34 to pass through. The connecting post 34 on the pedal 30 passes through the through hole and is movably connected to the upper shell. The role of.

The positions of the spring mounting holes are on both sides of the rotation axis 42 of the wheel, more specifically, on both sides of the upper casing to avoid interference with components or structures under the upper casing, for example, wheels are arranged under the middle part of the upper casing The motor shaft mounting seat is arranged on the rotation axis 42 of the wheel, and the motor shaft 44 is used to install the wheel. The contact through holes or spring mounting holes are located on both sides of the motor shaft mounting seat.

In some other embodiments, the spring and the spring mounting hole may not be provided, and the elasticity of the pedal itself is used to perform the rebound reset.

As shown in Figures 3 and 4, the utility model also designs a balance car, including a car body and wheels. The car body includes a housing 40 and a control circuit board 41 located in the housing. The housing 40 includes the above implementation For the upper housing assembly described in the example, the photoelectric switch assembly 10 is electrically connected to the control circuit board 41 through the connecting member 14. The photoelectric switch is located above the rotation axis 42 of the wheel and in the middle position of the upper housing. The control circuit board 41 can be arranged on the lower shell, or can be fixedly connected to the upper shell, located below the upper shell, and then realize the signal transmission with the photoelectric switch assembly 10 through the connector 14 to control the work of the balance car.

The above-mentioned embodiments are only preferred embodiments of the present utility model, and cannot be used to limit the scope of protection of the present utility model. Any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model belong to The scope of protection required by the utility model.

Claims

An upper housing assembly, characterized in that it comprises a pedal and an upper housing, the pedal is movably arranged on the upper housing, the upper housing is provided with a photoelectric switch assembly, the photoelectric switch assembly and the wheel The rotation axis of is correspondingly arranged and located below the pedal.
8. The upper housing assembly of claim 1, wherein the height of the photoelectric switch assembly is not lower than the height of the rotation axis.
The upper housing assembly according to claim 1, wherein the upper housing is provided with a mounting slot for installing the photoelectric switch assembly, and the photoelectric switch assembly is placed in the mounting slot.
The upper housing assembly according to claim 3, wherein a clamping member is provided on the side wall of the installation groove, and the clamping member is in clearance fit with the side wall of the installation groove, and the clamping member The side of the member facing the photoelectric switch assembly is provided with a clamping block for the photoelectric switch assembly; and/or,

A first threaded hole is provided in the mounting groove, a second threaded hole is provided on the photoelectric switch component, and the photoelectric switch component is fixedly connected to the mounting groove by a screw.
The upper housing assembly according to claim 3, wherein the photoelectric switch assembly comprises a photoelectric switch circuit board, a photoelectric switch and a connector, the photoelectric switch circuit board and the control circuit board are arranged separately, and the photoelectric switch circuit board is separated from the control circuit board. The switch is arranged on the photoelectric switch circuit board, and the connector connects the photoelectric switch circuit board and the control circuit board, and is used to transmit electrical signals between the photoelectric switch circuit board and the control circuit board.
5. The upper housing assembly according to claim 5, characterized in that: the upper housing is provided with a wire passing hole for the connecting member to pass through; the wire passing hole is provided with a wire clamping opening;

The wire passing hole is located on one side or both sides of the upper casing, or the wire passing hole is located on one side or both sides of the installation groove.
The upper housing assembly according to claim 5, wherein the connecting piece is provided with connecting heads at both ends, the photoelectric switch circuit board is provided with a connecting seat for fixing the connecting head, and the connecting head It is plugged and matched with the connecting base to realize the electrical connection between the photoelectric switch and the connector; or, the connector is fixedly connected with the photoelectric switch circuit board.
The upper housing assembly of claim 7, wherein: the photoelectric switch is located on the upper surface of the photoelectric switch circuit board; the connecting seat or the connecting member and the fixing point of the photoelectric switch circuit board It is located on the upper surface of the photoelectric switch circuit board, or the fixing point of the connecting seat or the connecting member and the photoelectric switch circuit board is located on the lower surface of the photoelectric switch circuit board.
8. The upper housing assembly according to any one of claims 5 to 8, wherein the connecting piece is a wire, or the connecting piece is a hard connecting piece with a built-in wire.
The upper housing assembly according to any one of claims 1 to 8, wherein the pedal is provided with a contact at a position corresponding to the photoelectric switch in the photoelectric switch assembly; and the upper housing is provided with a spring A mounting hole, the pedal is provided with a mounting post for installing a spring and a connecting post for movably connecting with the upper housing, the mounting post is adapted to the spring mounting hole, and one end of the spring is connected to the mounting The column is connected, and the other end is connected with the spring mounting hole to realize the rebound of the pedal; the contact is a rectangular sheet structure.
A balance vehicle, comprising a vehicle body and wheels, characterized in that: the vehicle body includes a housing and a control circuit board located in the housing, and the housing includes the upper body according to any one of claims 1 to 10 Shell assembly, the photoelectric switch assembly is electrically connected with the control circuit board through a connector.