CN110062887B - Moving body detection device - Google Patents
Moving body detection device Download PDFInfo
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- CN110062887B CN110062887B CN201780076664.8A CN201780076664A CN110062887B CN 110062887 B CN110062887 B CN 110062887B CN 201780076664 A CN201780076664 A CN 201780076664A CN 110062887 B CN110062887 B CN 110062887B
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- housing
- detection element
- moving body
- magnet
- case
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/02—Housings
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- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Provided is a moving body detection device, wherein the detection precision is not reduced due to vibration and other factors, and the production efficiency is high. A moving body detection device (100) is provided with: a magnetic detection element (10) that outputs an electric signal corresponding to the movement of the subject; a magnet (20), wherein the magnet (20) applies a magnetic field to the magnetism detection element (10); a lead terminal (30), the lead terminal (30) being connected to the magnetism detection element (10); a 1 st case (40) to which a magnetism detection element (10), a magnet (20), and lead terminals (30) are attached on one side of the 1 st case (40); and a 2 nd case (50) covering one side of the 1 st case (40), the 2 nd case (50) being fitted and connected to the 1 st case (40) and being provided to face the subject, wherein a fixing portion (42) is provided in the 1 st case (40), the fixing portion (42) is fixedly provided on a fixing object (70), and the lead terminal (30) is integrally provided so as to be embedded and embedded.
Description
Technical Field
The present invention relates to a moving body detection device.
Background
In order to detect the movement of a moving body that performs linear movement or rotational movement, a moving body detection device is used. For example, a fixed structure of a moving body detection device disclosed in patent document 1 is configured such that a detection unit is assembled to a sensor body, the detection unit including: a magnetic detection element; a magnet for applying a magnetic field to the magnetic detection element; the substrate connected to the magnetic detection element is fixed to the device through a cover by covering the detection portion with the cover connected to the sensor body, and detects a change in the magnetic field accompanying the movement of the moving body.
Further, the rotation detecting device disclosed in patent document 2 is configured as follows: set up the detection part in its inside of the shell of taking the bottom, this detection part includes: a magnetic detection element; a magnet for applying a magnetic field to the magnetic detection element; the substrate connected to the magnetic detection element is fixed to the device through the case by fixing the detection portion with resin filled in the case.
Documents of the prior art
Patent document
Patent document 1: JP 2006-208023 publication
Patent document 2: JP 2008-164439A
Disclosure of Invention
Problems to be solved by the invention
In the fixing structure of the moving body detecting apparatus disclosed in patent document 1, since the sensor body is fixed to the device via the cover, there is a problem that the magnetic detecting element or the like is displaced inside the cover due to vibration of the device or the like, and the detection accuracy is lowered.
On the other hand, in the rotation detecting device disclosed in patent document 2, in order to fix the magnetic detecting element and the like in the housing fixed to the device by the filled resin, although the magnetic detecting element is prevented from being displaced in the housing due to vibration of the device and the like, it is necessary to take a long time to cure the filled resin at the time of assembly, and there is a problem of low production efficiency.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a moving body detection apparatus which is free from a reduction in detection accuracy due to vibration or the like and which is high in production efficiency.
Means for solving the problems
In order to achieve the above object, a moving body detection device according to the present invention includes:
a magnetic detection element that outputs an electric signal corresponding to movement of the object;
a magnet for applying a magnetic field to the magnetic detection element;
a lead terminal connected to the magnetic detection element;
a 1 st case to one side of which the magnetic detection element, the magnet, and the lead terminal are attached;
a 2 nd housing, which covers the 1 st housing on the one side, is fitted and connected to the 1 st housing, and is provided to face the subject;
the 1 st housing is provided with a fixing portion which is fixedly provided on a fixing object and in which a part of the lead terminal is integrally provided so as to be buried.
ADVANTAGEOUS EFFECTS OF INVENTION
According to the present invention, there can be provided a moving body detection device which is free from a reduction in detection accuracy due to vibration or the like and which is high in production efficiency.
Drawings
Fig. 1 is a perspective view of an exploded general configuration of one embodiment of a moving object detection device according to the present invention;
FIG. 2 is a perspective view of the general structure of one embodiment of the present invention;
fig. 3 is a sectional view showing the general structure of one embodiment of the present invention.
Detailed Description
A moving object detection device for implementing an embodiment of the present invention will be described below with reference to the drawings.
In the following description, the front-back direction constitutes the X direction, the left-right direction constitutes the Y direction, and the up-down direction constitutes the Z direction, with reference to the state of the moving object detection apparatus 100 shown in fig. 2. The description is made so that the direction in which the arrows indicating the X direction, the Y direction, and the Z direction are directed is the plus (positive) direction, and the opposite direction is the minus (negative) direction.
The moving body detection device 100 of the present invention includes: a magnetic detection element 10, the magnetic detection element 10 outputting an electric signal corresponding to the movement of the object; a magnet 20, the magnet 20 applying a magnetic field to the magnetism detection element 10; lead terminals 30, the lead terminals 30 being connected to the magnetic force detection element 10; a 1 st case 40 on one side of which the magnetism detecting element 10, the magnet 20 and the lead terminals 30 are mounted; and a 2 nd case 50 which is provided so as to face the subject, the 2 nd case 50 being fitted and connected to the 1 st case 40 so as to cover one side of the 1 st case 40, wherein the 1 st case 40 is provided with a fixing portion 42, the fixing portion 42 being provided on the fixing object 70 for fixing, and a part of the lead terminal 30 being integrally formed so as to be embedded.
The moving body detection device 100 of the present embodiment is configured by, for example, a rotation detection device that is provided in the vicinity of an axle of a front wheel of a two-wheeled vehicle and measures a vehicle speed based on the detected number of rotations of the front wheel. That is, in the moving body detecting apparatus 100, the axle of the front wheel constitutes the detected body, the vehicle body near the axle constitutes the fixed object 70, the fixing portion 42 of the 1 st housing 40 is fixed to the fixed object 70, and the 2 nd housing 50 fitted and connected to the 1 st housing 40 is provided so as to face the axle.
The magnetism detection element 10 is configured by a hall IC or the like that detects a change in a magnetic field accompanying movement of a moving body as an object to be detected. In the magnetic detection element 10, the terminal 10b is provided so as to protrude rearward (in the (-X direction)) from the tip of the detection portion 10a in a direction perpendicular to the detection portion 10a (Y-Z plane) at the tip. The magnetic detecting element 10 is received in the receiving portion 43 of the 1 st housing 40. The receiving portion 43 is integrally formed on the 1 st housing 40 so as to protrude forward (+ X direction). The receiving portion 43 is formed with a 1 st recess 43a that is open at the front side middle portion and is open upward (+ Z direction), the detection portion 10a of the magnetic detection element 10 is received from above (+ Z direction) in the 1 st recess 43a, and the front end portion (+ X direction end surface) of the detection portion 10a is located at the opening of the front side middle portion and is provided so as to face the subject.
The magnet 20 is used to apply a magnetic field to the magnetism detection element 10. The magnet 20 is made of, for example, a ferrite magnet having a rectangular parallelepiped shape. Magnet 20 is disposed at the rear side (in the (-X direction) adjacent to 1 st concave portion 43a in which magnetism detection element 10 is accommodated, and is accommodated in 2 nd concave portion 43b opened downward (in the (-Z direction) from below.
The lead terminal 30 is provided in parallel with the top surface of the receiving portion 43 integrally formed in the 1 st case 40, and is integrally embedded in the 1 st case 40 and the receiving portion 43 by insert molding, and the front end portion is connected to the terminal 10b of the magnetic detection element 10 by welding or the like, and the rear end portion 30a (see fig. 3) can constitute a connection pin protruding inside the rear connection portion 44 of the 1 st case 40, and can lead out a detection signal to the outside.
Further, an output signal processing circuit provided with a substrate and an electronic device such as an IC or a chip element for processing a detection signal of the magnetic detection element 10 is provided between the front end of the lead terminal 30 and the terminal 10b of the magnetic detection element 10, and the output signal processed by the processing circuit of the substrate can be led out to the outside from the connection portion 44 via the lead terminal 30 or the detection signal from the magnetic detection element 10 can be outputted and then processed by an external processing circuit.
The 1 st housing 40 is as shown in fig. 1, and includes: a main body 41 which connects 2 circular arc portions of a large size and a small size and has a substantially elliptical outer shape; a fixed portion 42, the fixed portion 42 being concentrically formed on a central portion of the small arc portion in the body portion 41; a receiving portion 43 integrally formed to protrude forward (+ X direction) from a central portion of the large arc portion in the main body portion 41; a connection part 44 integrally formed by projecting the connection part 44 from the large arc part of the body part 41 to the rear (-X direction), and the 1 st housing 40 is made of a synthetic resin such as polybutylene Terephthalate (PBT) resin.
In addition, the sizes of the 2 circular arc portions may be the same.
The fixing portion 42 includes a cylindrical collar 42a made of metal and is integrally formed at a portion protruding below the body portion 41 of the 1 st housing 40. The fixing portion 42 is integrally formed by fitting a metal cylindrical collar 42a into a small arc portion of the main body portion 41. As shown in fig. 3, the collar 42a can fix the 1 st housing 40 by inserting a fixing bolt from the rear side (in the-X direction) and fastening it to the fixing object 70.
In the main body 41, a portion surrounded by an inner edge portion of the large arc portion and a semicircular portion on the large arc portion side of the collar 42a of the small arc portion constitutes a side wall portion 41a, an inner portion surrounded by the side wall portion 41a constitutes a recess, and the rear side (-X direction) is closed by a flat plate-like bottom plate portion 41 b.
The receiving portion 43 protrudes forward on the front side of the bottom plate portion 41b of the main body portion 41 through a columnar portion 43c, and is formed integrally of synthetic resin in a substantially rectangular parallelepiped shape. A seal ring groove is formed in the outer peripheral portion of the columnar portion 43c, and a seal ring 45 is attached to the inside of the seal ring groove, so that the outer peripheral portion of the columnar portion 43c and a 2 nd housing 50 to be fitted and connected to each other described later are in a sealed state.
As already described, the receiving portion 43 is provided with the 1 st recess 43a and the 2 nd recess 43b, the magnetism detection element 10 is mounted in the 1 st recess 43a, and the magnet 20 is mounted in the 2 nd recess 43 b.
The connecting portion 44 is formed in a hollow quadrangular tube shape, is opened in the rear direction (-X direction), is integrally formed so as to project rearward from the bottom plate portion 41b of the main body portion 41, and is capable of connecting an external mounting-side connector (not shown in the drawings) in a predetermined direction, and can maintain a snap-fit connection state between the connectors by engaging the uneven portions.
The 2 nd housing 50 includes: a bottomed cylindrical portion 51, which is provided so as to face the subject, and which is fitted to the 1 st housing 40 so as to cover one side (front side (+ X direction)) of the 1 st housing 40; and a flange 52, the flange 52 being integrally formed at an opening end of the cylindrical portion 51. The 2 nd housing 50 is made of the same synthetic resin as the 1 st housing 40, such as polybutylene terephthalate (PBT) resin or the like.
In the 2 nd housing 50, the cylindrical portion 51 serves as a cover covering the magnetic detection element 10 and the magnet 20 and the like received in the receiving portion 43 integrally formed on the 1 st housing 40, and on the outer periphery of the cylindrical portion 51, a plurality of reinforcing ribs 51a are integrally formed at equal intervals in the circumferential direction. The rib 51a increases the rigidity, and reduces the influence of vibration from the fixed object 70. The rib 51a has a function of introduction when the seal ring 53 is attached and a function of introduction when the moving body detection device 100 is attached to the fixed object 70. A seal ring groove 51b is formed behind the rib 51a of the cylindrical portion 51, and a seal ring 53 is attached to the inside of the seal ring groove 51b to seal the cylindrical portion 51 and the fixed object 70, and the seal ring 53 suppresses transmission of vibration from the fixed object 70 to the 1 st housing 40.
The flange portion 52 has an outer shape along the inner shape of the side wall portion 41a of the 1 st housing 40, and is composed of a surrounding side wall portion 52a and a cover portion 52b, and the cover portion 52b closes the opening portion on the front side of the side wall portion 52a and is integrally provided with the cylindrical portion 51.
Thus, the 2 nd housing 50 is attached so as to cover the inside of the 1 st housing 40 and connected, and the side wall portion 52a of the flange portion 52 of the 2 nd housing 50 is fitted in contact with the inside of the side wall portion 41a of the 1 st housing 40, and the opening of the side wall portion 41a is closed by the cover plate portion 52b, and the flange portion 52 has the same thickness as the fixing portion 42 of the 1 st housing 40.
That is, the height of the side wall portion 41a of the main body portion 41 of the 1 st housing 40 and the height of the side wall portion 52a of the flange portion 52 of the 2 nd housing 50 are set so that the cover portion 52b has the same thickness as the fixing portion 42 of the 1 st housing 40 in the fitted and connected state.
Further, when the 1 st housing 40 is fixed to the fixed object 70 by the fixing portion 42, the flange portion 52 of the 2 nd housing 50 is sandwiched between the 1 st housing 40 and the fixed object 70, and the moving body detection device 100 can be reliably held to the fixed object 70.
A connection holding mechanism 60 for holding a fitting connection state is provided between the 1 st housing 40 and the 2 nd housing 50.
In the 1 st housing 40 fixed to the fixed object 70 and positioned on the fixed side, 4 engaging recesses 61 are formed as substantially rectangular holes in the side wall portion 41 a.
An engaging convex portion 62 is integrally formed on the side wall portion 52a of the 2 nd housing 50 located on the connection side to be fitted and connected to the 1 st housing 40, and the engaging convex portion 62 has a fork-like member which is engaged with the engaging concave portion 61 from the inside toward the outside.
Thus, the side wall portion 52a of the 2 nd housing 50 is attached and connected to the inside of the side wall portion 41a of the 1 st housing 40, the prongs of the engaging convex portion 62 of the 2 nd housing 50 engage with the holes of the engaging concave portion 61 of the 1 st housing 40, and the fitted and connected state of the 1 st housing 40 and the 2 nd housing 50 is held by the connection holding mechanism 60.
In addition, as for the engaging concave portion 61 and the engaging convex portion 62, the engaging convex portion 62 may be provided on the 1 st housing 40 and the engaging concave portion 61 may be provided on the 2 nd housing 50, in the contrary.
In the moving body detection device 100, if the 1 st housing 40 is fixed to the fixed object 70 via the fixing portion 42, the flange portion 52 of the 2 nd housing 50 fitted and connected to the 1 st housing 40 is sandwiched between the 1 st housing 40 and the fixed object 70, and even when a problem occurs in the fitted and connected state of the connection and holding mechanism 60, for example, the moving body detection device 100 can be reliably held to the fixed object 70.
In the moving body detection device 100, as shown in fig. 3, the 2 nd housing 50 is fitted and connected to the 1 st housing 40 in a covering manner, the seal ring 45 is attached to the columnar portion 43c of the 1 st housing 40, the magnetic detection element 10 and the magnet 20 are received in the receiving portion 43, and the engaging concave portion 61 and the engaging convex portion 62 of the connection holding mechanism 60 are engaged with each other to hold the connected state. Further, a seal ring 53 is attached to the seal ring groove 51b of the 2 nd housing 50.
Next, the moving body detection apparatus 100 is fixed by: the 2 nd housing 50 is mounted in a mounting hole 71 facing a subject, not shown, formed in the fixed object 70, and a mounting bolt inserted into a collar 42a of the fixing portion 42 of the 1 st housing 40 is fastened to the fixed object 70. The connector 44 is connected to a connector for mounting from the outside, and can output a detection signal to the outside.
Thus, the moving object detection apparatus 100 is fixed to the fixed object 70 by the mounting bolts, and the object is in a state of facing the magnetic detection element 10, and the amount of movement (the number of rotations, etc.) of the object is detected (measured) by the magnetic detection element 10.
When the moving body detecting device 100 is, for example, a rotation detecting device, the axle of the front wheel of the two-wheeled vehicle constitutes a detected body, the vehicle body near the axle constitutes a fixed object 70, and the fixing portion 42 of the 1 st housing 40 is fixed to the fixed object 70, whereby the tip of the 2 nd housing 50 fitted and connected to the 1 st housing 40 is provided so as to face the axle inside the mounting hole 71. In this way, the number of axles of the two-wheeled vehicle as the detected body is measured based on the magnetic change caused by the rotation of the axles, and the vehicle speed is calculated and output to the outside, or the number of rotations of the axles is detected and output.
In the moving body detection device 100, the receiving portion 43 is integrally formed in the 1 st case 40, the lead terminal 30 is integrally formed by insert molding in a buried manner, the magnetism detection element 10 is received in the 1 st recess 43a of the receiving portion 43, the magnet 20 is received in the 2 nd recess 43b, and the 1 st case 40 is fixed to the fixed object 70 via the fixing portion 42, so that the vibration system of the object to be detected is the same as the vibration system of the moving body detection device 100.
Thus, in the conventional apparatus, since the 2 nd housing 50 is fixed to the fixed object on the equipment side and the 1 st housing 40 is connected to the 2 nd housing 50, the vibration of the object to be detected is transmitted to the 1 st housing 40, which receives and fixes the magnetic detection element 10 or the magnet 20, via the 2 nd housing 50, and the vibration is transmitted from the 2 vibration systems, and the influence of the vibration causes a reduction in the detection accuracy, but according to the moving body detection apparatus 100 of the present application, the influence of the vibration can be suppressed and the vibration can be detected with high accuracy because the number of the vibration systems is 1.
In the conventional device, the magnetic detection element 10 or the magnet 20 is accommodated in the 2 nd case 50 and the resin is filled and cured, but in the moving body detection device 100 of the present application, the fixing of the filling of the resin is not necessary, and the curing time is not necessarily required, and the device can be produced in a short time and with good efficiency.
In the moving body detection device 100, since the 2 nd housing 50 is provided inside the 1 st housing 40 and is fitted and connected thereto, the 2 nd housing 50 can be made compact, the mass of the vibration system can be reduced by downsizing and lightening, and the influence of vibration can be suppressed.
Further, since the 2 nd housing 50 is attached to the attachment hole 71 of the fixed object 70 via the seal ring 53 attached to the outer periphery of the seal ring groove 51b, vibration from the fixed object 70 can be mitigated by the seal ring 53, and a vibration reduction effect can be expected.
As described above specifically according to the embodiment, the moving body detection apparatus 100 according to the present invention includes: a magnetic detection element 10, the magnetic detection element 10 outputting an electric signal corresponding to the movement of the object; a magnet 20, the magnet 20 applying a magnetic field to the magnetism detection element 10; lead terminals 30, the lead terminals 30 being connected to the magnetic force detection element 10; a 1 st case 40 on one side of which the magnetism detection element 10, the magnet 20, and the lead terminals 30 are mounted; and a 2 nd case 50 which covers one side of the 1 st case 40, is fitted and connected to the 1 st case 40, and is provided so as to face the subject, wherein the 1 st case 40 is provided with a fixing portion 42, and the fixing portion 42 is fixedly provided to a fixing object 70 and is embedded and integrally formed with a part of the lead terminal 30, so that a vibration system of the fixing object 70 is the same as a vibration system of the magnetic detection element 10 or the magnet 20, and a decrease in detection accuracy due to a different vibration system can be suppressed, and detection can be performed with high accuracy.
Further, since the magnetic detection element 10 or the magnet 20 is fixed to the 1 st case 40 fixed to the fixing object 70, it is not necessary to fill the resin in the 2 nd case 50 and to cure the resin, and it is not necessary to fix the magnetic detection element 10 or the magnet 20, and the curing time is not necessary, and the production can be performed efficiently in a short time.
According to the moving body detection apparatus 100 of the present invention, since the flange portion 52 is provided on the 2 nd housing 50, and the flange portion 52 is held between the 1 st housing 40 and the fixed object 70 while the fixing portion 42 is fixed, the 2 nd housing 50 can be reliably fixed via the 1 st housing 40. Thus, even if the fitting connection between the 1 st housing 40 and the 2 nd housing 50 is released by any chance, the fixed state on the fixed object 70 can be maintained as it is.
According to the moving body detection device 100 of the present invention, since the fixing portion 42 includes the metal cylindrical collar 42a and is formed integrally with the 1 st housing 40, and the flange portion 52 is formed at least in a part of the periphery of the fixing portion 42, the fixing portion 42 can be reliably fixed to the fixed object 70 by the metal collar 42a of the fixing portion 42, and the flange portion 52 can be fixed by sandwiching with the fixing of the fixing portion 42, and can be more reliably fixed.
In the above-described embodiment, the case where the moving object detection device 100 is used as the rotation detection device to detect the object that moves rotationally has been described as an example, but the present invention is not limited to this, and may be applied to a case where an object that moves linearly is detected.
Although the magnetic force detecting element 10 is described as an example in which it is formed of a hall IC, the present invention is not limited to this, and may be any element such as an element of another type.
The material of the 1 st case 40, the 2 nd case 50, and the like is not particularly limited, and a synthetic resin using ceramics or the like can be used.
Although the X, Y, Z direction in the moving object detection apparatus 100 is set for the purpose of explanation, the mounting direction of the moving object detection apparatus 100 and the like are not limited to these directions.
The present invention is not limited to the above embodiments at all.
Description of reference numerals:
reference numeral 52 denotes a flange portion;
reference numeral 52b denotes a cover plate portion;
reference numeral 60 denotes a connection retaining mechanism;
reference numeral 61 denotes an engaging recess;
reference numeral 62 denotes an engaging projection;
Claims (3)
1. A moving body detection apparatus characterized by comprising:
a magnetic detection element that outputs an electric signal corresponding to movement of the object;
a magnet for applying a magnetic field to the magnetic detection element;
a lead terminal connected to the magnetic detection element;
a 1 st case to one side of which the magnetic detection element, the magnet, and the lead terminal are attached;
a 2 nd housing, which covers the 1 st housing on the one side, is fitted and connected to the 1 st housing, and is provided to face the subject;
the 2 nd housing includes a cylindrical portion covering the magnetic detection element and the magnet;
a plurality of reinforcing ribs are integrally formed on the outer periphery of the cylindrical portion at equal intervals in the circumferential direction, a seal ring groove is formed behind the ribs, and a seal ring is mounted inside the seal ring groove;
the 1 st housing is provided with a fixing portion which is fixedly provided on a fixing object and in which a part of the lead terminal is integrally provided so as to be buried.
2. The moving body detection apparatus according to claim 1 wherein a flange portion is provided in the 2 nd housing, and the flange portion is fixedly provided by the fixing portion and is held between the 1 st housing and the fixed object.
3. The moving body detection apparatus according to claim 2, wherein the fixing portion includes a cylindrical collar made of metal and is formed integrally with the 1 st housing;
the flange portion is formed at least in a part of the periphery of the fixing portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-243275 | 2016-12-15 | ||
| JP2016243275 | 2016-12-15 | ||
| PCT/JP2017/043567 WO2018110360A1 (en) | 2016-12-15 | 2017-12-05 | Movable-body detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110062887A CN110062887A (en) | 2019-07-26 |
| CN110062887B true CN110062887B (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780076664.8A Active CN110062887B (en) | 2016-12-15 | 2017-12-05 | Moving body detection device |
Country Status (3)
| Country | Link |
|---|---|
| JP (2) | JP7031607B2 (en) |
| CN (1) | CN110062887B (en) |
| WO (1) | WO2018110360A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03108667A (en) * | 1989-09-22 | 1991-05-08 | Nippondenso Co Ltd | Rotational position detector |
| JPH0694746A (en) * | 1992-09-10 | 1994-04-08 | Sumitomo Electric Ind Ltd | Sensor device and revolution sensor using same |
| JPH0694747A (en) * | 1992-09-10 | 1994-04-08 | Sumitomo Electric Ind Ltd | Sensor device and revolution sensor using same |
| WO1995010055A1 (en) | 1993-10-06 | 1995-04-13 | Kelsey-Hayes Company | Integral variable reluctance speed sensor |
| JP3309594B2 (en) * | 1994-11-04 | 2002-07-29 | 日本精工株式会社 | Rolling bearing unit with rotation speed detector |
| KR100315833B1 (en) | 1995-07-21 | 2002-02-28 | 모리시타 요이찌 | Magnetic rotational speed sensor |
| JP3108667B2 (en) | 1997-09-19 | 2000-11-13 | ミツワガス機器株式会社 | Gas meter support device |
| DE102004011100A1 (en) | 2004-03-06 | 2005-09-22 | Robert Bosch Gmbh | Motion sensor and method of making a motion sensor |
| JP4085078B2 (en) * | 2004-07-20 | 2008-04-30 | 住電エレクトロニクス株式会社 | Rotation detection sensor |
| JP5146901B2 (en) | 2006-12-28 | 2013-02-20 | 日本精機株式会社 | Rotation detector |
| DE102011004447A1 (en) * | 2011-02-21 | 2012-08-23 | Robert Bosch Gmbh | Sensor unit for a vehicle |
-
2017
- 2017-12-05 WO PCT/JP2017/043567 patent/WO2018110360A1/en active Application Filing
- 2017-12-05 CN CN201780076664.8A patent/CN110062887B/en active Active
- 2017-12-05 JP JP2018556595A patent/JP7031607B2/en active Active
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2022
- 2022-02-08 JP JP2022017708A patent/JP7256974B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2018110360A1 (en) | 2019-10-24 |
| CN110062887A (en) | 2019-07-26 |
| JP2022062204A (en) | 2022-04-19 |
| JP7256974B2 (en) | 2023-04-13 |
| JP7031607B2 (en) | 2022-03-08 |
| WO2018110360A1 (en) | 2018-06-21 |
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