CN216044052U

CN216044052U - Plane Hall type rotary manual throttle

Info

Publication number: CN216044052U
Application number: CN202121418634.0U
Authority: CN
Inventors: 欧鹏; 陈亮; 孙仕靖; 李文辽; 张传敏
Original assignee: Wenzhou Ruili Automobile Technology Co ltd
Current assignee: Wenzhou Ruili Automobile Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-03-15
Anticipated expiration: 2031-06-24

Abstract

The utility model provides a plane Hall type rotary manual throttle, which comprises: the bottom of the mandrel is embedded with a magnetic part; the circuit board, this circuit board are circular dull and stereotyped spare, it puts around arc surface central point and is provided with plane hall chip on the circuit board, wherein, the dabber with the circuit board is coaxial, be provided with revolution mechanic on the dabber, then the rotary motion of dabber makes the magnetic part is in being close to the position on circuit board surface, with produce magnetic field deflection angle between the plane hall chip, in order to change the induction magnetic field of plane hall chip, its adjustable stroke that enough solves vertical manual throttle of hall is not enough, the poor technical problem of signal stability.

Description

Plane Hall type rotary manual throttle

Technical Field

The utility model relates to the technical field of vehicle manual control throttles, in particular to a planar Hall type rotary manual throttle.

Background

The hand throttle is a throttle controlled by hand, and is widely used in large vehicles using diesel engines by drivers. In the prior art, a driver needs to hold the accelerator grip by hand to control the opening degree of the accelerator of the vehicle, but the manual stretching in the prior art has poor precision of an operation mode, a fragile structure and poor stability.

With the technical innovation, under the prior art in the technical field, a Hall assembly and a potentiometer are respectively applied to a manual throttle, and a potentiometer type manual throttle and a vertical Hall manual throttle are provided. The potentiometer type manual control accelerator is firstly provided, because the transmission mechanism is complex, the reliability of the rotation angle positioning is not high, and the operation is not smooth, the accelerator is easy to have misalignment and play of different degrees, the oil consumption and the labor consumption are high after the accelerator is used for a long time, and the standard discharge cannot be realized, so the potentiometer type manual control accelerator is quickly replaced by the manual control accelerator with the Hall assembly.

Fig. 1 is a schematic diagram showing an exploded structure of a vertical hall manual throttle according to the prior art. The vertical Hall manual control accelerator adopts a Hall assembly to replace a potentiometer, so that the problem that a transmission mechanism of the potentiometer type accelerator is complex is solved to a certain extent. Referring to fig. 1, the core structure of the vertical hall manual control accelerator for controlling the accelerator includes a circuit board and a magnetic steel seat for bearing two magnetic steels, a hall assembly is disposed on the circuit board and is coaxial with the two magnetic steels, and the adjustable range of the vertical hall manual control accelerator, i.e., the deflection angle stroke between the hall assembly and the magnetic steels. In the prior art, due to the limitation of the initial installation requirement of the structure, the magnetic field deflection angle stroke of the vertical Hall manual control accelerator is in the range of 0-110 degrees, and when the initial installation angle is unreasonable, poor signals can occur, even the idling is too large, and some phenomena can cause the vehicle to run away; the vertical Hall manual control accelerator cannot be suitable for accelerator control under the condition that the deflection angle exceeds the range of 0-110 degrees.

In view of this, the vertical hall manual control accelerator in the prior art should be improved to solve the technical problems of limited magnetic field induction deflection angle and unstable signal.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the planar Hall type rotary manual throttle which has a simplified structure, is easy to realize, and can solve the technical problems of insufficient adjustable stroke and poor signal stability of the vertical Hall manual throttle.

In order to solve the technical problem, the utility model adopts a planar Hall type rotary manual throttle, which comprises: the bottom of the mandrel is embedded with a magnetic part; the circuit board, this circuit board is circular dull and stereotyped spare, the central point of circuit board puts and is provided with plane hall chip, wherein, the dabber with the circuit board is coaxial, be provided with revolution mechanic on the dabber, then the rotary motion of dabber makes magnetic part be close to the position on circuit board surface, with produce magnetic field deflection angle between the plane hall chip, in order to change the induction magnetic field of plane hall chip.

Preferably, the rotation angle of the rotary structure is in the range of 0 ° to 360 °, so that the magnetic field induced deflection angle of the planar hall chip is in the range of 0 ° to 360 °.

Further preferably, the mandrel is arranged at the bottom of the rotating structure and is rotatably fixed with the rotating seat through the rotating structure, wherein the mandrel comprises a shaft body and a shaft seat, the shaft seat is a hollow seat body, one end of the shaft body extends into an inner cavity of the shaft seat and is integrally molded with the shaft seat, a containing counter bore is formed in the bottom of the shaft seat in a sunken mode, and the magnetic part is embedded in the containing counter bore.

Still further preferably, one side end surface of the shaft seat extends in a direction away from the shaft seat to form a limiting portion, an elastic component is clamped between the limiting portion and the inner wall of the rotating seat, and the rotating structure fixes the mandrel and the rotating seat and compresses the elastic component.

Still further preferably, the rotating structure includes a rotating portion and a first cover, a connecting channel is formed on the first cover, and a shaft body of the mandrel passes through the connecting channel, so that the mandrel and the first cover are inserted through the connecting channel and further fixedly connected to the rotating portion through a fixing member; the circuit board is located the roating seat bottom to close through second lid, the pencil subassembly passes the second lid with the circuit board forms the electricity and connects.

Still further preferably, the first cover body includes: the cover plate, the apron bottom further extends and forms annular flap, the spliced pole, this spliced pole is formed on the apron, just the spliced pole cavity, its cavity inner chamber is connecting channel, form the external screw thread on the spliced pole cylinder.

Still further preferably, the fixing member includes two nut members and a mounting plate located between the two nut members, the two nut members and the mounting plate are respectively sleeved on the connecting column, and the inner walls of the screw threads of the two nut members respectively form internal threads engaged with the external threads of the connecting column, so that the two nut members are screwed with the connecting column and press-fix the mounting plate.

Preferably, the circuit board is encapsulated in the rotary seat by potting adhesive.

Compared with the prior art, the utility model has the following beneficial technical effects due to the adoption of the technical scheme:

1. in the scheme, a planar Hall chip is arranged at the center of the surface of a circular planar circuit board, and a mandrel with a magnetic part at the bottom is matched with a rotating structure, so that the magnetic part can rotate at a position close to the surface of the circuit board, magnetic induction lines around the planar Hall chip are cut, then the planar Hall chip generates at least one circuit signal, and a vehicle controller realizes the control of the opening degree of an accelerator according to the circuit signal; the scheme that the magnetic steel is matched with the magnetic steel seat in the prior art is replaced, and the technical problem that the deflection angle stroke between the magnetic steel and the magnetic steel seat is limited by assembly requirements is solved;

2. based on the effects, when the throttle valve is actually used, the rotating structure drives the mandrel to rotate, so that the magnetic field induction deflection stroke between the magnetic part at the bottom of the mandrel and the planar Hall chip is enlarged, the magnetic field induction deflection angle of the Hall manual control throttle is enlarged to 360 degrees from the existing 110-degree stroke, and the signal stability is good;

3. compared with the existing vertical Hall electronic accelerator, in the scheme of the utility model, the circuit board provided with the planar Hall chip is packaged by using the pouring sealant, and the wire harness assembly communicated with the controller is welded with the bottom of the circuit board, so that a shell of a sensor and other accessories corresponding to the shell under the existing structure are omitted, the integral structure of the manual control accelerator is simplified, and the assembly and maintenance cost of the Hall manual control accelerator is reduced.

Drawings

FIG. 1 is a schematic diagram showing an exploded structure of a vertical Hall manual throttle according to the prior art;

FIG. 2 is an exploded view showing an exploded structure of the planar Hall rotary hand throttle according to a preferred embodiment of the present invention;

FIG. 3 is a sectional view showing a sectional structure of the planar Hall rotary hand throttle shown in FIG. 2;

FIG. 4 is an exploded view showing the mandrel of FIG. 2 in an exploded configuration;

FIG. 5 is an exploded view showing an exploded view of the rotating structure of FIG. 2;

fig. 6 is a schematic view illustrating a structure of the first cover in the rotation structure shown in fig. 5.

Detailed Description

An embodiment of a planar hall rotary hand throttle according to the present invention will be described with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.

It should be noted that, in the embodiments of the present invention, the expressions "first" and "second" are used to distinguish two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of description and should not be understood as limitations of the embodiments of the present invention, and the following embodiments do not describe the embodiments one by one.

The utility model aims at the technical problems of limited magnetic field deflection angle and stroke, poor signal stability and complex structure of a vertical Hall manual control accelerator in the prior art. The idea of the utility model for solving the technical problem is to adopt a new rotary transmission structure to replace a limited rotary structure between the magnetic steel and the magnetic steel seat, thereby enlarging the deflection angle stroke of the Hall assembly and achieving a larger adjustable deflection angle range.

Fig. 2 is an exploded view illustrating an exploded structure of the planar hall rotary hand throttle according to a preferred embodiment of the present invention, and fig. 3 is a sectional view illustrating a sectional structure of the planar hall rotary hand throttle illustrated in fig. 2. Referring to fig. 2, taking the direction shown in fig. 2 as an example, the planar hall-type rotary manual throttle according to the preferred embodiment of the present invention includes a rotary structure and a rotary base from top to bottom according to an assembly sequence, wherein the rotary structure is connected to the rotary base through a rotary shaft, so that the rotary structure can rotate the rotary shaft in the rotary base. The end part of the rotating shaft is provided with a magnetic part, and the rotating shaft extends into the inner cavity of the rotating seat from one end of the rotating seat so as to correspond to the circuit board arranged at the bottom of the rotating seat.

Specifically, the rotating shaft is said first. Referring to fig. 4, fig. 4 is an exploded view showing an exploded structure of the mandrel of fig. 2. In the embodiment of the present invention, a mandrel is used as the rotating shaft, the mandrel 10 is a long straight structure, and includes a shaft body 11 and a shaft seat 12, and referring to fig. 3 and 4, it can be seen that the mandrel 10 structure can be regarded as an integral structure formed by inserting the long straight shaft body 11 into the hollow shaft seat 12. Referring to fig. 3, the bottom surface of the shaft seat 12 is recessed to form a receiving counterbore (not shown) in which a magnetic member 14 for cooperating with the hall chip is embedded. The magnetic element may in different embodiments be a permanent magnet or a soft magnet which is energized in the operational state.

With continued reference to fig. 4, the seat body end surface of the shaft seat 12 extends towards the direction away from the shaft seat axis to form a table surface, which is defined as a limiting table 13, and the upper and lower surfaces of the limiting table 13 respectively form two limiting surfaces, the functions of which will be described below.

The core shaft equipped with the magnetic member is press-fitted in a rotary base through a rotary structure. Referring back to fig. 2, the rotary base 20 is a hollow sleeve structure, and a circuit board 30 formed by planar hall elements is disposed at the bottom of the rotary base. In the embodiment of the present invention, the circuit board 30 is encapsulated at the bottom of the inner cavity of the rotating base 20 by using a potting adhesive, and is sealed by a cover body. The shaft seat 12 of the mandrel 10 extends into the inner cavity of the rotating seat 20 from the other end thereof and is arranged close to the surface of the circuit board 30. In the preferred embodiment of the present invention, one end of the shaft body of the mandrel 10 is inserted into the shaft seat 12 and then integrated by injection molding.

The circuit board 30 is a flat plate, in this embodiment, the circuit board 30 is a circular plate with an arc-shaped convex surface, the planar hall chips 31 are distributed at the center position of the side surface of the circuit board 30, and other electronic components are wound around the periphery of the planar hall chips 31 at equal intervals. And the other side surface of the wiring board 30 is soldered to the wire harness assembly 40.

When the mandrel 10 is placed in the rotating base 20, an elastic component 50 is disposed between the lower surface of the limiting table 13 of the shaft base 12 and the inner wall of the rotating base 20, in this embodiment, the elastic component 50 is a compression spring, and two ends of the compression spring are respectively provided with a nylon gasket. Thus, when the mandrel 10 is assembled with the rotary structure and combined with the rotary base 20, the mandrel 10 presses the elastic member 50 against the rotary base 20.

Turning to the rotating structure. Fig. 5 is an exploded view showing an exploded structure of the rotary structure of fig. 2. The rotation structure is a portion that is connected to the shaft body 11 of the spindle 10 and by which the shaft body 11 can be rotated. As shown in fig. 5, the rotating structure includes a rotating part 60 and a first cover 70. The rotating portion 60 is a grip portion that an operator performs, and the rotating portion 60 is fastened and fixed to the first cover 70 by a nut member. In the preferred embodiment, the rotating portion 60 is fixed to the first cover 70 by two nut members 61 and an attachment plate 62 interposed between the two nut members 61.

Fig. 6 is a schematic view illustrating a structure of the first cover in the rotation structure shown in fig. 5. The first cover 70 includes a cover plate 71 and a coupling post 72 formed on an upper surface of the cover plate 71. The bottom surface of the cover plate 71 further extends to form an annular flap 73. And the connecting column 72 is a vertically arranged long straight connecting structure, wherein the hollow cavity forms a connecting channel (not shown). The outer cylindrical surface of the attachment post 72 has external threads that are axially engaged with internal threads formed by the threaded inner wall of the nut member. Therefore, during assembly, the shaft body 11 of the spindle 10 extends from the cover opening 73 of the first cover body 70 and passes through the connecting channel in the connecting column 72 until the upper surface of the limiting table 13 of the shaft seat 12 contacts with the surface of the cover opening 73 to form a limiting position, and at this time, the shaft body 11 extends into the rotating part 60 and is fixed with the rotating part. In the preferred embodiment, the fixing method between the shaft body 11 and the rotating part 60 is: the shaft body 11 is disposed in a D-shaped cross section, and the shaft body 11 is interference-fitted to a through hole formed in the rotating portion 60 and having a D-shaped cross section. In various preferred embodiments of the present invention, the fixing manner between the shaft 11 and the rotating portion 60 can be other conventional manners, and the preferred embodiments of the present invention are not limited by the fixing manner between the shaft 11 and the rotating portion 60.

At the other side opening of the rotary base 20, the circuit board 30 is sealed by the second cover 80. The second cover 80 is formed with a through hole through which the wire harness assembly 40 communicating with the controller passes through the second cover 80 and is electrically connected to the circuit board 30.

In practical conditions, an operator holds the rotating portion 60 and rotates the rotating portion, so as to drive the spindle 10 to rotate correspondingly, and at this time, the magnetic member 14 at the bottom of the spindle 10 also rotates correspondingly at a position close to the planar hall chip 31, so that an angle between the magnetic member and the planar hall chip 31 on the circuit board 30 changes. Because the magnetic induction line is cut, the Hall assembly senses the change of a surrounding magnetic field, at least one path of electric signal is generated at the same time, the generated electric signal is sent to the controller to be processed, and then the controller realizes the control of the opening degree of the accelerator according to the received electric signal. Therefore, in the preferred embodiment of the present invention, the rotation angle of the rotating structure is in the range of 0 ° to 360 °, and the rotation of the magnetic member 14 is no longer limited by the rotating base 20, so that the magnetic field induced deflection angle of the planar hall chip 1 is also in the range of 0 ° to 360 °.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A planar Hall type rotary manual throttle is characterized by comprising:

the bottom of the mandrel is embedded with a magnetic part;

a circuit board which is a circular flat plate, a planar Hall chip is arranged at the central position of the circuit board, wherein,

the core shaft is coaxial with the circuit board, a rotating structure is arranged on the core shaft, and the rotating motion of the core shaft enables the magnetic part to be close to the surface of the circuit board and generate a magnetic field deflection angle with the planar Hall chip so as to change the induction magnetic field of the planar Hall chip.

2. The planar hall rotary hand throttle of claim 1, wherein the rotation angle of the rotary structure is in the range of 0 ° to 360 ° so that the magnetic field induced deflection angle of the planar hall chip is in the range of 0 ° to 360 °.

3. The planar Hall rotary hand throttle of claim 2, wherein the spindle is disposed at a bottom of the rotary structure and rotatably fixed with a rotary base by the rotary structure, wherein,

the core shaft comprises a shaft body and a shaft seat, the shaft seat is a hollow seat body, one end of the shaft body extends into an inner cavity of the shaft seat and is integrally molded with the shaft seat, the bottom of the shaft seat is sunken to form a containing counter bore, and the magnetic part is embedded in the containing counter bore.

4. The planar hall rotary manual throttle of claim 3, wherein a limit portion is formed by extending an end surface of one side of the shaft seat in a direction away from the shaft seat, an elastic member is interposed between the limit portion and an inner wall of the rotary seat, wherein,

the rotating structure fixes the mandrel and the rotating seat and compresses the elastic component.

5. The planar hall rotary manual throttle of claim 4, wherein the rotary structure comprises a rotary part and a first cover, a connecting channel is formed on the first cover, and a shaft body of the spindle passes through the connecting channel, so that the spindle and the first cover are inserted through the connecting channel and further fixedly connected with the rotary part through a fixing member;

the circuit board is located the roating seat bottom to close through second lid, the pencil subassembly passes the second lid with the circuit board forms the electricity and connects.

6. The planar hall rotary throttle handle according to claim 5, wherein the first cover comprises:

a cover plate, the bottom of the cover plate is further extended to form an annular cover opening,

the connecting column is formed on the cover plate and is hollow, the hollow inner cavity of the connecting column is the connecting channel, and external threads are formed on the cylindrical surface of the connecting column.

7. The planar hall rotary manual throttle of claim 6, wherein the fixing member comprises two nut members and a mounting plate disposed between the two nut members, the two nut members and the mounting plate are respectively sleeved on the connecting column, and inner screw threads engaged with the outer screw threads of the connecting column are respectively formed on inner screw thread walls of the two nut members, so that the two nut members are screwed with the connecting column and press-fix the mounting plate.

8. The planar hall rotary manual throttle of any one of claims 5 to 7, wherein the circuit board is encapsulated in the rotary base by a potting adhesive.