CN212463022U - Analog quantity Hall sensor for linear motor and linear motor - Google Patents
Analog quantity Hall sensor for linear motor and linear motor Download PDFInfo
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- CN212463022U CN212463022U CN202021421424.2U CN202021421424U CN212463022U CN 212463022 U CN212463022 U CN 212463022U CN 202021421424 U CN202021421424 U CN 202021421424U CN 212463022 U CN212463022 U CN 212463022U
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- hall sensor
- linear motor
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Abstract
The utility model provides a linear electric motor is with analog quantity hall sensor and linear electric motor relates to linear electric motor technical field. The analog quantity Hall sensor for the linear motor comprises a shell, a Hall sensor body for acquiring magnetic field change and a conversion piece for converting the magnetic field change into a Hall signal and an AB phase signal; the Hall sensor body and the conversion piece are arranged in the shell, and the conversion piece is connected with the Hall sensor body. The linear motor comprises a motor body and an analog quantity Hall sensor for the linear motor; the analog quantity Hall sensor for the linear motor is arranged on the motor body. The technical effect of reducing the cost of the linear motor module is achieved.
Description
Technical Field
The utility model relates to a linear electric motor technical field particularly, relates to linear electric motor is with analog quantity hall sensor and linear electric motor.
Background
A linear motor is a transmission device that directly converts electric energy into mechanical energy for linear motion without any intermediate conversion mechanism. The linear motor can be seen as a rotary motor which is formed by cutting open in the radial direction and expanding into a plane, and the linear motor gradually replaces a ball screw to become the main flow for driving linear motion. With the continuous development of science and technology, linear motors have been widely used in various devices in the field of industrial control, and the essential position feedback device has been the key topic of research in this field. The current common position feedback devices mostly adopt a grating ruler or a magnetic grating ruler and a corresponding reading head detection scheme.
In the prior art, a magnetic reading head is fixed on an adapter plate, and a magnetic grid ruler is fixed on a precision surface and is spaced from the reading head; the adapter plate is fixed on the sliding block, the sliding block is matched with the guide rail and fixed on the adapter plate, and the magnetic steel is fixed on the upper surface of the base; along with the movement of the adapter plate, the magnetic reading head also moves and generates a position signal; however, the price of the grating and the magnetic grating is high, the length of the ruler needs to be increased along with the increase of the length of the module for a long-stroke linear motor module, and the cost is increased along with the increase of the length of the module; the grating ruler is easy to be polluted and damaged to influence the feedback of the encoder, and the magnetic grating ruler is easy to be demagnetized and damaged to influence the feedback of the encoder; the grating feedback and magnetic grating feedback installation process is complex, most of grating rulers or magnetic grating rulers on the current market are fixed by direct or indirect gluing, and the gluing easily causes the risk of ruler falling. Resulting in excessive cost of the linear motor module.
Therefore, it is an important technical problem to be solved by those skilled in the art to provide an analog hall sensor for a linear motor with a low cost linear module and a linear motor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a linear electric motor is with analog quantity hall sensor and linear electric motor to alleviate the too big technical problem of linear electric motor module cost among the prior art.
In a first aspect, an embodiment of the present invention provides an analog quantity hall sensor for a linear motor, including a housing, a hall sensor body for acquiring magnetic field changes, and a conversion element for converting the magnetic field changes into hall signals and AB phase signals;
the Hall sensor body and the conversion piece are arranged in the shell, and the conversion piece is connected with the Hall sensor body.
With reference to the first aspect, embodiments of the present invention provide a possible implementation manner of the first aspect, wherein the converter includes a first converter for converting a magnetic field variation into a hall signal and a second converter for converting a magnetic field variation into an AB-phase signal;
the first conversion piece and the second conversion piece are connected with the Hall sensor body.
In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the first converting element and the second converting element are all provided with a connecting wire for connecting with an external device.
With reference to the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein the first conversion element employs a first conversion chip;
the second conversion piece adopts a second conversion chip.
In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a mounting seat for mounting on the linear motor is provided on the housing.
In combination with the first aspect, an embodiment of the present invention provides a possible implementation manner of the first aspect, wherein a first mounting hole for mounting a screw is provided on the mounting seat.
In a second aspect, an embodiment of the present invention provides a linear motor, including a motor body and an analog hall sensor for the linear motor;
the analog quantity Hall sensor for the linear motor is arranged on the motor body.
With reference to the second aspect, an embodiment of the present invention provides a possible implementation manner of the second aspect, wherein the motor body includes a base, a rotor, and a stator;
the stator is fixedly arranged on the base, and the rotor is slidably arranged on the stator;
the analog quantity Hall sensor for the linear motor is arranged on the rotor.
In combination with the second aspect, an embodiment of the present invention provides a possible implementation manner of the second aspect, wherein, a second mounting hole corresponding to the first mounting hole of the analog hall sensor for the linear electric motor is provided on the mover.
In combination with the second aspect, embodiments of the present invention provide a possible implementation manner of the second aspect, wherein the second mounting hole is a threaded hole.
Has the advantages that:
the utility model provides an analog quantity Hall sensor for a linear motor, which comprises a shell, a Hall sensor body used for acquiring magnetic field change, and a conversion piece used for converting the magnetic field change into a Hall signal and an AB phase signal; the Hall sensor body and the conversion piece are arranged in the shell, and the conversion piece is connected with the Hall sensor body.
Specifically when using, will the utility model provides an analog quantity hall sensor for linear electric motor installs linear electric motor on, and this can remove along with linear electric motor ' S active cell of hall sensor, the N-S utmost point of stator on hall sensor body passes through induction linear electric motor, can monitor the change in magnetic field, then can change magnetic field variation into hall signal and AB phase signal through the crossover sub, and go out hall signal and AB phase signal transmission, thereby make linear electric motor ' S driver can learn linear electric motor ' S displacement, thereby need not to set up magnetic grid chi or grating chi, reduce the cost of linear electric motor module.
The utility model provides a linear motor, which comprises a motor body and an analog quantity Hall sensor for the linear motor; the analog quantity Hall sensor for the linear motor is arranged on the motor body. The linear motor has the above advantages compared with the prior art, and is not described in detail here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an analog hall sensor for a linear motor according to an embodiment of the present invention;
fig. 2 is the embodiment of the utility model provides a local cross-sectional view of analog quantity hall sensor for linear electric motor.
Icon:
100-a housing;
200-a hall sensor body;
310-a first transition piece; 320-a second conversion member;
400-connecting lines;
500-a mounting seat; 510-first mounting hole.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to 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", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Referring to fig. 1 and 2, the present embodiment provides an analog hall sensor for a linear motor, including a housing 100, a hall sensor body 200 for acquiring a magnetic field change, and a converter for converting the magnetic field change into a hall signal and an AB-phase signal; the hall sensor body 200 and the converting piece are both disposed in the case 100, and the converting piece is connected to the hall sensor body 200.
Specifically when using, install the analog quantity hall sensor for linear electric motor that this implementation provided on linear electric motor, and hall sensor body 200 can remove along with linear electric motor ' S active cell, through the N-S utmost point of the last stator of response linear electric motor as hall sensor body 200, can monitor the change in magnetic field, then can change magnetic field change into hall signal and AB phase signal through the crossover sub, and go out hall signal and AB phase signal transmission, thereby make linear electric motor ' S driver can learn linear electric motor ' S displacement, thereby need not to set up magnetic grid chi or grating chi, reduce the cost of linear electric motor module.
Specifically, when in actual use, install the analog quantity hall sensor for linear electric motor that this embodiment provided on linear electric motor's active cell, then the analog quantity hall sensor for linear electric motor that this embodiment provided can follow the active cell and remove, at the removal in-process, the magnetic field variation of linear electric motor stator can be monitored in real time to hall sensor body 200, then change the magnetic field that hall sensor body 200 acquireed through the converting part and change into hall signal and AB phase signal, hall signal and AB phase signal can directly be read by linear electric motor's driver, thereby make linear electric motor's driver can learn linear electric motor's actual displacement volume. Through the analog quantity hall sensor for the linear electric motor that this embodiment provided, need not to paste grating or magnetic grid strip on linear electric motor, reduction installation work that can be very big reduces debugging work, reduction equipment cost.
Specifically, the hall sensor body 200 and the conversion part are both arranged in the casing 100, and during production, the hall sensor body 200 and the conversion part can be produced through an injection molding process, and are coated by the casing 100, so that the hall sensor body 200 and the conversion part are prevented from being damaged.
Referring to fig. 1 and 2, in an alternative of the present embodiment, the conversion member includes a first conversion member 310 for converting a magnetic field variation into a hall signal and a second conversion member 320 for converting a magnetic field variation into an AB-phase signal; the first and second conversion members 310 and 320 are connected to the hall sensor body 200.
Specifically, the converter includes a first converter 310 and a second converter 320, and the first converter 310 and the second converter 320 are both connected to the hall sensor body 200, the hall sensor body 200 acquires the magnetic field variation of the stator of the linear motor and then transmits the magnetic field variation to the first converter 310 and the second converter 320, the first converter 310 is used for converting the magnetic field variation acquired by the hall sensor body 200 into a hall signal, the second converter 320 is used for converting the magnetic field variation acquired by the hall sensor body 200 into an AB-phase signal, and then the driver of the linear motor can directly read the hall signal converted by the first converter 310 and the AB-phase signal converted by the second converter 320.
Wherein, the first conversion member 310 adopts a first conversion chip; the second conversion member 320 employs a second conversion chip.
The first conversion chip is a conversion chip in the prior art, as long as the magnetic field change can be converted into a hall signal, and a specific conversion circuit of the first conversion chip is not described herein again.
The second conversion chip is a conversion chip in the prior art, as long as the magnetic field change can be converted into an AB phase signal, and the specific conversion circuit of the first conversion chip is not described herein again.
Referring to fig. 1 and 2, in an alternative of the present embodiment, a connection line 400 for connecting with an external device is provided on each of the first switching member 310 and the second switching member 320.
Specifically, the first converting element 310 and the second converting element 320 are provided with a connecting wire 400, when being assembled, the first converting element 310 is connected with the driver of the linear motor through the connecting wire 400, and the second converting element 320 is connected with the driver of the linear motor through the connecting wire 400; both the first converting element 310 and the second converting element 320 transmit the converted signals to the driver of the linear motor through their own connecting wires 400.
Referring to fig. 1 and 2, in an alternative embodiment, a housing 100 is provided with a mounting seat 500 for mounting on a linear motor.
Specifically, the mounting base 500 is arranged on the casing 100, the analog hall sensor for the linear motor provided by the embodiment can be mounted on the rotor of the linear motor through the mounting base 500, and the analog hall sensor for the linear motor provided by the embodiment can be detachably connected with the rotor of the linear motor through the mounting base 500, so that subsequent maintenance and replacement work of workers are facilitated.
Referring to fig. 1 and 2, in an alternative embodiment, a first mounting hole 510 for mounting a screw is opened on the mounting base 500.
Specifically, a first mounting hole 510 is formed in the mounting base 500, and the analog hall sensor for the linear motor provided by this embodiment can be mounted on the rotor of the linear motor through the first mounting hole 510.
Specifically, when the analog hall sensor for the linear motor provided in this embodiment is mounted on the rotor of the linear motor, the screw is screwed into the rotor of the linear motor after passing through the first mounting hole 510, and then the screw is screwed, so that the analog hall sensor for the linear motor provided in this embodiment is firmly mounted on the rotor of the linear motor.
The embodiment provides, the analog quantity hall sensor for the linear electric motor does not receive the influence of linear electric motor module length, practices thrift the cost. And the hole is directly fixed at the original Hall hole position of the linear motor without special adjustment. And the rotor is arranged on the rotor (different from the grating or the magnetic grid which is directly exposed outside the equipment), so that the rotor is not easy to be influenced by external connection to cause abnormity.
The embodiment provides a linear motor, which comprises a motor body and an analog quantity Hall sensor for the linear motor; the analog quantity Hall sensor for the linear motor is arranged on the motor body.
Specifically, the analog quantity hall sensor for the linear motor is arranged on the motor body and can move along with the rotor of the motor body, so that monitoring work is completed.
In addition, the linear motor that this embodiment provided still has the advantage of above-mentioned linear motor with analog quantity hall sensor compared with prior art, and the repeated description is not repeated here.
In an alternative of this embodiment, the motor body includes a base, a mover, and a stator; the stator is fixedly arranged on the base, and the rotor is arranged on the stator in a sliding manner; the analog quantity Hall sensor for the linear motor is arranged on the rotor.
Specifically, the rotor is arranged on the stator in a sliding mode, and can move on the stator after the rotor is electrified, so that the workpiece on the rotor is driven to move.
When the rotor moves on the stator, the analog quantity Hall sensor arranged on the rotor for the linear motor can move along with the rotor, and when the analog quantity Hall sensor for the linear motor moves, the N-S poles on the stator can be sensed, so that the change of a magnetic field is monitored.
According to the size of the model of the stator in the motor body of the linear motor, a person skilled in the art can change the size of the hall sensor body 200 of the analog quantity hall sensor for the linear motor by himself, so that the hall sensor body 200 can detect the magnetic field change of the stator when moving.
In an alternative of this embodiment, the mover is provided with a second mounting hole corresponding to the first mounting hole 510 of the analog quantity hall sensor for the linear motor.
Specifically, a second mounting hole is formed in the mover of the motor body, and when the analog hall sensor for the linear motor provided in this embodiment is mounted on the mover, the first mounting hole 510 of the mounting base 500 corresponds to the second mounting hole of the mover, and then the screw is screwed in.
In an alternative of this embodiment, the second mounting hole is a threaded hole.
Specifically, the second mounting hole can adopt the screw hole, and the staff of being convenient for installs the analog quantity hall sensor for linear electric motor.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.
Claims (10)
1. The utility model provides an analog quantity hall sensor for linear electric motor which characterized in that includes: the Hall sensor comprises a shell (100), a Hall sensor body (200) for acquiring magnetic field changes, and a converter for converting the magnetic field changes into Hall signals and AB phase signals;
the Hall sensor body (200) and the conversion piece are both arranged in the shell (100), and the conversion piece is connected with the Hall sensor body (200).
2. The analog quantity hall sensor for the linear motor according to claim 1, wherein the converting member includes a first converting member (310) for converting a magnetic field variation into a hall signal and a second converting member (320) for converting a magnetic field variation into an AB phase signal;
the first conversion piece (310) and the second conversion piece (320) are both connected with the Hall sensor body (200).
3. The analog quantity hall sensor for the linear motor according to claim 2, wherein the first converting member (310) and the second converting member (320) are each provided with a connecting wire (400) for connecting with an external device.
4. The analog quantity hall sensor for the linear motor according to claim 2, wherein the first conversion member (310) employs a first conversion chip;
the second conversion piece (320) adopts a second conversion chip.
5. The analog quantity hall sensor for the linear motor according to claim 1, wherein the housing (100) is provided with a mounting seat (500) for mounting on the linear motor.
6. The analog quantity hall sensor for the linear motor according to claim 5, wherein the mounting seat (500) is provided with a first mounting hole (510) for mounting a screw.
7. A linear motor, characterized by comprising a motor body and an analog quantity hall sensor for the linear motor according to any one of claims 1 to 6;
the analog quantity Hall sensor for the linear motor is arranged on the motor body.
8. The linear motor of claim 7, wherein the motor body includes a base, a mover, and a stator;
the stator is fixedly arranged on the base, and the rotor is slidably arranged on the stator;
the analog quantity Hall sensor for the linear motor is arranged on the rotor.
9. The linear motor according to claim 8, wherein the mover has a second mounting hole corresponding to a first mounting hole (510) of the analog hall sensor for the linear motor.
10. The linear motor of claim 9, wherein the second mounting hole is a threaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021421424.2U CN212463022U (en) | 2020-07-17 | 2020-07-17 | Analog quantity Hall sensor for linear motor and linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021421424.2U CN212463022U (en) | 2020-07-17 | 2020-07-17 | Analog quantity Hall sensor for linear motor and linear motor |
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| Publication Number | Publication Date |
|---|---|
| CN212463022U true CN212463022U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021421424.2U Active CN212463022U (en) | 2020-07-17 | 2020-07-17 | Analog quantity Hall sensor for linear motor and linear motor |
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| CN (1) | CN212463022U (en) |
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- 2020-07-17 CN CN202021421424.2U patent/CN212463022U/en active Active
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