CN219446955U - Magnetic circuit structure and electronic accelerator pedal using same - Google Patents
Magnetic circuit structure and electronic accelerator pedal using same Download PDFInfo
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- CN219446955U CN219446955U CN202320224132.7U CN202320224132U CN219446955U CN 219446955 U CN219446955 U CN 219446955U CN 202320224132 U CN202320224132 U CN 202320224132U CN 219446955 U CN219446955 U CN 219446955U
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Abstract
The utility model discloses a magnetic circuit structure and an electronic accelerator pedal using the same, comprising a first pair of magnetic poles and a second pair of magnetic poles, wherein a magnetic gap is formed in a non-induction area between the first pair of magnetic poles and the second pair of magnetic poles, and arc-shaped magnetic pole boundaries are arranged in an induction area formed by the first pair of magnetic poles and an induction area formed by the second pair of magnetic poles; the first pair of magnetic poles and the second pair of magnetic poles are made of injection-molded permanent magnetic ferrite materials. The utility model uses the injection molding permanent magnetic ferrite material to form, reduces the dependence on rare earth permanent magnetic materials with increasingly scarce resources, realizes pedal diversification on the requirements of different clients, and has high adaptability, high production efficiency and low cost.
Description
Technical Field
The utility model relates to an electronic accelerator pedal, in particular to a magnetic circuit structure and an electronic accelerator pedal using the magnetic circuit structure.
Background
In the current non-contact electronic accelerator pedal based on a Hall chip, the most commonly used magnetic steel material is an alloy permanent magnetic material, including rare earth permanent magnetic material (NdFeB Nd2Fe 14B), samarium cobalt (SmCo) and AlNiCo (AlNiCo). Two flaky NdFeB magnetic steels are basically symmetrically distributed on the structure to form a uniform and constant closed magnetic field, the magnetic field rotates at an angle relative to the Hall chip to generate an included angle change, and the Hall chip senses the change of the included angle of the magnetic field to generate a voltage output signal.
Along with diversification and low cost of different customers on the electronic accelerator pedal, the high cost of the rare earth material cannot meet the current low cost requirement, and the two sheet-shaped structures cannot meet the diversified and large-scale requirements.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides the magnetic circuit structure and the electronic accelerator pedal using the magnetic circuit structure, and the utility model uses the injection molding permanent magnetic ferrite material to form, reduces the dependence on rare earth permanent magnetic materials with increasingly short resources, realizes pedal diversification on the requirements of different clients, and has high adaptability, high production efficiency and low cost.
In order to achieve the technical purpose, the utility model adopts the following technical scheme: the magnetic circuit structure comprises a first pair of magnetic poles and a second pair of magnetic poles, wherein a magnetic gap is formed in a non-induction area between the first pair of magnetic poles and the second pair of magnetic poles, and arc-shaped magnetic pole boundaries are arranged in an induction area formed by the first pair of magnetic poles and an induction area formed by the second pair of magnetic poles; the first pair of magnetic poles and the second pair of magnetic poles are made of injection-molded permanent magnetic ferrite materials.
Further, the first pair of magnetic poles comprises a first magnetic pole and a second magnetic pole, the second pair of magnetic poles comprises a third magnetic pole and a fourth magnetic pole, the first magnetic pole is connected with the root of the third magnetic pole and forms the magnetic gap therebetween, and the second magnetic pole is connected with the root of the fourth magnetic pole and forms the magnetic gap therebetween; the inner walls of the first magnetic pole, the second magnetic pole, the third magnetic pole and the fourth magnetic pole are arc-shaped magnetic pole boundaries.
Further, the outer walls of the first magnetic pole, the second magnetic pole, the third magnetic pole and the fourth magnetic pole are provided with protrusions.
An electronic accelerator pedal comprises magnetic steel, wherein the magnetic steel adopts the magnetic steel; an induction area with linearly changing upper and lower magnetic induction intensity and uniform and constant magnetic induction intensity in the horizontal direction is generated in the boundary of the magnetic pole, and a zero magnetic field is generated in the central position of the induction area.
Further, the magnetic field sensor further comprises Hall chips, wherein the Hall chips are arranged in the sensing area and perpendicular to the magnetic field direction.
Further, the magnetic steel induction device also comprises a rocker arm and magnetic isolation sheets adsorbed on the two outer sides of the magnetic steel, wherein the tail part of the rocker arm is provided with a mounting baffle plate for mounting and fixing the magnetic steel and the magnetic isolation sheets and a hot riveting bulge, and the rotation angle of the rocker arm changes to enable the magnetic steel to rotate at the same angle, so that the Hall chip senses the magnetic induction intensity of the magnetic steel at different positions to generate different voltage output signals.
In summary, the present utility model achieves the following technical effects:
according to the utility model, the rare earth material is replaced by the injection permanent magnetic ferrite material, so that the cost of the pedal magnetic steel is lower, the structure of the injection permanent magnetic ferrite material is more diversified, and the processing is convenient;
the utility model sets up the magnetic gap between magnetic pole one and magnetic pole three, magnetic pole two and magnetic pole four, the zero magnetic field that the magnetic gap forms separates two upper and lower induction areas, form the magnetic field loop in upper induction area magnetic pole one and magnetic pole two, form the magnetic field loop in lower induction area magnetic pole three and magnetic pole four, the magnetic induction intensity direction in upper and lower two induction area loops is opposite, provide a magnetic field that the up-down direction changes, horizontal direction is stable for the footboard;
the utility model sets the boundary of the arc structure, compensates the magnetic field curve, fits the magnetic field induction intensity of the upper induction area and the lower induction area into a linear curve, and ensures the magnetic field stability;
the utility model reasonably utilizes materials, reduces the dependence on rare earth permanent magnet materials with increasingly scarce resources, realizes pedal diversification on the requirements of different clients, and has the advantages of high adaptability, high production efficiency, low cost and the like.
Drawings
FIG. 1 is a schematic diagram of a magnetic steel provided by an embodiment of the present utility model;
FIG. 2 is a side view of FIG. 1;
fig. 3 is a schematic diagram of a pedal using magnetic steel.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Examples:
as shown in fig. 1, a magnetic circuit structure, especially a magnetic circuit structure for an electronic accelerator pedal, relates to a magnetic steel, is formed by injection molding ferrite materials, and is a magnetic steel and magnetic circuit structure based on a hall chip, and comprises a first pair of magnetic poles and a second pair of magnetic poles, wherein a magnetic gap 15 is formed in a non-induction area between the first pair of magnetic poles and the second pair of magnetic poles, and arc-shaped magnetic pole boundaries 17 are respectively arranged in an induction area formed by the first pair of magnetic poles and an induction area formed by the second pair of magnetic poles.
The magnetic steel is provided with an upper pair of four magnetic poles and a lower pair of four magnetic poles, the first pair of magnetic poles comprises a first magnetic pole 11 and a second magnetic pole 12, the second pair of magnetic poles comprises a third magnetic pole 13 and a fourth magnetic pole 14, the first magnetic pole 11 is connected with the root of the third magnetic pole 13, a magnetic gap 15 is formed between the first magnetic pole 12 and the root of the fourth magnetic pole 14, namely, the first magnetic pole 11, the third magnetic pole 13, the second magnetic pole 12 and the fourth magnetic pole 14 of the magnetic steel are provided with the magnetic gap 15 in a non-induction area, the two magnetic gaps 15 form a zero magnetic field in the central position of the upper induction area and the lower induction area, the magnetic field intensity direction of the upper induction area is set to be from the first magnetic pole to the second magnetic pole, the magnetic field intensity direction of the lower induction area is set to be from the fourth magnetic pole to the third magnetic pole, and the magnetic field induction area with the whole magnetic field induction intensity linearly changing from +B to-B from top to bottom is formed. The Hall applied to the pedal is provided with a magnetic field which is changed in the up-down direction and stable in the horizontal direction.
The first magnetic pole 11, the second magnetic pole 12, the third magnetic pole 13 and the fourth magnetic pole 14 are all made of injection-molded permanent magnetic ferrite materials, and replace the original rare earth materials.
The first pair of magnetic poles are connected with the root parts of the second pair of magnetic poles, a U-shaped structure is formed when the pedal is seen from the side, and the two pairs of magnetic pole root parts are connected and used for being installed on the pedal.
As shown in fig. 2, the inner walls of the first pole 11, the second pole 12, the third pole 13 and the fourth pole 14 are arc-shaped pole boundaries 17. An induction area with the horizontal direction of magnetic force lines and the horizontal direction of magnetic induction intensity being uniform and constant is formed between the first magnetic pole 11 and the second magnetic pole 12 of the upper magnetic pole induction area, an induction area with the horizontal direction of magnetic force lines, opposite to the magnetic force lines of the upper magnetic pole and the horizontal direction of magnetic induction intensity being uniform and constant is formed between the third magnetic pole 13 and the fourth magnetic pole 14 of the lower magnetic pole induction area, the upper induction area and the lower induction area enable the induction range to be larger, the induction area to be wider, the induction area of the pedal to be larger, and the induction precision of the pedal to be higher.
The magnetic pole boundary 17 of the induction area is arc-shaped, the side edges of the upper induction area and the lower induction area are arc-shaped structures, a bracket structure is formed, a magnetic field is fitted, a compensation effect is formed, and the magnetic induction intensity lines are changed. The magnetic induction intensity (negative B-positive B linear change or positive B-negative B linear change) which linearly changes from the upper magnetic pole induction area (magnetic induction intensity from the first magnetic pole to the second magnetic pole) to the lower magnetic pole induction area (magnetic induction intensity from the fourth magnetic pole to the third magnetic pole) is generated in the area of the magnetic pole boundary 17, and a zero magnetic field is generated in the central position of the induction area, wherein the upper induction area and the lower induction area are separated by the zero magnetic field area, and a magnetic field loop from the first magnetic pole to the third magnetic pole and the fourth magnetic pole to the second magnetic pole is eliminated, so that the magnetic circuit of the induction area is more stable.
The outer walls of the first magnetic pole 11, the second magnetic pole 12, the third magnetic pole 13 and the fourth magnetic pole 14 are respectively provided with a bulge 16 for adsorbing and positioning the magnetism isolating sheet 2, so that a magnetic field is sealed in an induction area and external interference is isolated.
As shown in fig. 3, an electronic accelerator pedal comprises a magnetic steel 1, an induction area with linearly changing magnetic induction intensity up and down and uniform and constant magnetic induction intensity in the horizontal direction is generated in a magnetic pole boundary 17, and a zero magnetic field is generated in the center of the induction area, so that the pedal has uniform induction precision in the use process.
The magnetic field sensor also comprises Hall chips 4, wherein the Hall chips 4 are arranged in the sensing area and perpendicular to the magnetic field direction.
Still include rocking arm 3 and adsorb at the magnetism isolating sheet 2 in two outsides of magnet steel 1, the afterbody of rocking arm 3 is provided with installation fixed magnet steel 1, magnetism isolating sheet 2's installation baffle 31, rivet protruding 32, and rocking arm 3 rotation angle changes and makes magnet steel same angle rotation change to make the magnetic induction intensity of hall chip response magnet steel different positions produce different voltage output signals.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical solutions of the present utility model.
Claims (6)
1. A magnetic circuit structure, characterized in that: the magnetic pole structure comprises a first pair of magnetic poles and a second pair of magnetic poles, wherein a magnetic gap (15) is formed in a non-induction area between the first pair of magnetic poles and the second pair of magnetic poles, and arc-shaped magnetic pole boundaries (17) are arranged in an induction area formed by the first pair of magnetic poles and an induction area formed by the second pair of magnetic poles; the first pair of magnetic poles and the second pair of magnetic poles are made of injection-molded permanent magnetic ferrite materials.
2. A magnetic circuit structure according to claim 1, wherein: the first pair of magnetic poles comprises a first magnetic pole (11) and a second magnetic pole (12), the second pair of magnetic poles comprises a third magnetic pole (13) and a fourth magnetic pole (14), the first magnetic pole (11) is connected with the root of the third magnetic pole (13) and forms the magnetic gap (15) between the first magnetic pole and the root of the fourth magnetic pole (14), and the second magnetic pole (12) is connected with the root of the fourth magnetic pole (14) and forms the magnetic gap (15) between the second magnetic pole and the root of the fourth magnetic pole; the inner walls of the first magnetic pole (11), the second magnetic pole (12), the third magnetic pole (13) and the fourth magnetic pole (14) are arc-shaped magnetic pole boundaries (17).
3. A magnetic circuit structure according to claim 2, wherein: the outer walls of the first magnetic pole (11), the second magnetic pole (12), the third magnetic pole (13) and the fourth magnetic pole (14) are provided with protrusions (16).
4. An electronic accelerator pedal, characterized in that: comprising a magnetic steel (1), said magnetic steel (1) being a magnetic steel according to claim 1; an induction area with linearly-changing magnetic induction intensity up and down and uniform and constant magnetic induction intensity in the horizontal direction is generated in the magnetic pole boundary (17), and a zero magnetic field is generated in the center of the induction area.
5. An electronic accelerator pedal according to claim 4, wherein: the magnetic field sensor also comprises Hall chips (4), wherein the Hall chips (4) are arranged in the sensing area and are perpendicular to the magnetic field direction.
6. An electronic accelerator pedal according to claim 5, wherein: still include rocking arm (3) and adsorb magnet separation piece (2) in two outsides of magnet steel (1), the afterbody of rocking arm (3) is provided with installation fixed magnet steel (1), installation baffle (31) of magnet separation piece (2), rivet protruding (32) hot, just rocking arm (3) rotation angle change makes magnet steel same angle rotation change to make the magnetic induction intensity of hall chip response magnet steel different positions produce different voltage output signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320224132.7U CN219446955U (en) | 2023-02-14 | 2023-02-14 | Magnetic circuit structure and electronic accelerator pedal using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320224132.7U CN219446955U (en) | 2023-02-14 | 2023-02-14 | Magnetic circuit structure and electronic accelerator pedal using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219446955U true CN219446955U (en) | 2023-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320224132.7U Active CN219446955U (en) | 2023-02-14 | 2023-02-14 | Magnetic circuit structure and electronic accelerator pedal using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219446955U (en) |
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2023
- 2023-02-14 CN CN202320224132.7U patent/CN219446955U/en active Active
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