JP2014137298A5 - - Google Patents
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- JP2014137298A5 JP2014137298A5 JP2013006342A JP2013006342A JP2014137298A5 JP 2014137298 A5 JP2014137298 A5 JP 2014137298A5 JP 2013006342 A JP2013006342 A JP 2013006342A JP 2013006342 A JP2013006342 A JP 2013006342A JP 2014137298 A5 JP2014137298 A5 JP 2014137298A5
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- JP
- Japan
- Prior art keywords
- rotating member
- axial direction
- magnet
- shaft
- center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001514 detection method Methods 0.000 claims description 15
- 230000002093 peripheral Effects 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 2
- 230000000149 penetrating Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 description 1
Description
本発明の液面検出装置は、軸方向に沿ってあけられた軸孔を有する回転部材と、前記軸方向に延びる軸部を有し、該軸部に前記軸孔を嵌合させて、前記回転部材を回動可能に保持する固定部材と、液体に浮かぶフロートと、一端側に前記フロートが固定され且つ他端側が前記回転部材に固定され、前記液体の液面の上下動による前記フロートの上下動を前記回転部材の回転運動に変換するアームと、前記回転部材に固定され、前記回転部材と一体に、前記軸部の周方向に回転するマグネットと、前記軸部に、前記マグネットの回転による変位に伴って自身を貫通する磁束の量が変化する検知部が配置され、該検知部からの信号に基づいて、前記マグネットの変位を検出する磁電変換素子と、を備えた液面検出装置であって、前記軸方向において、前記回転部材の軸孔の内周面と前記軸部の外周面とが対向する軸受け長さを設定するとともに、該軸受け長さ内に、前記マグネットと前記検知部とを配置し、且つ、前記マグネットの磁力の前記軸方向における中心と前記検知部とを、前記軸方向と垂直の同一平面に配置し、更に、前記軸部の外周面に、前記検知部を球の中心として球状に形成された球状外周部を有するとともに、前記軸孔の内周面に、前記球状外周部に沿って前記検知部を球の中心として球状に形成された球状内周部を有することを特徴としている。 The liquid level detection device of the present invention has a rotating member having a shaft hole opened along the axial direction, a shaft portion extending in the axial direction, and fitting the shaft hole to the shaft portion, A fixed member that rotatably holds the rotating member; a float that floats on a liquid; the float is fixed to one end side; the other end side is fixed to the rotating member; and the float is moved by a vertical movement of the liquid level of the liquid. An arm that converts the vertical movement into a rotational motion of the rotating member, a magnet that is fixed to the rotating member and rotates in the circumferential direction of the shaft portion integrally with the rotating member, and the rotation of the magnet on the shaft portion A liquid level detecting device comprising: a detecting unit in which an amount of magnetic flux penetrating through itself is changed in accordance with a displacement due to a magnetic field; and a magnetoelectric conversion element that detects the displacement of the magnet based on a signal from the detecting unit. And in the axial direction Setting the bearing length in which the inner peripheral surface of the shaft hole of the rotating member and the outer peripheral surface of the shaft portion are opposed to each other, and arranging the magnet and the detection unit in the bearing length, and The center of the magnetic force of the magnet in the axial direction and the detection unit are arranged on the same plane perpendicular to the axial direction, and the detection unit is formed in a spherical shape on the outer peripheral surface of the shaft unit with the center of the sphere. And a spherical inner peripheral portion formed in a spherical shape with the detection portion as the center of the sphere along the spherical outer peripheral portion on the inner peripheral surface of the shaft hole .
Claims (3)
前記軸方向に延びる軸部（９）を有し、該軸部（９）に前記軸孔（５）を嵌合させて、前記回転部材（７）を回動可能に保持する固定部材（１１）と、
液体に浮かぶフロート（１３）と、
一端側に前記フロート（１３）が固定され且つ他端側が前記回転部材（７）に固定され、前記液体の液面の上下動による前記フロート（１３）の上下動を前記回転部材（７）の回転運動に変換するアーム（１５）と、
前記回転部材（７）に固定され、前記回転部材（７）と一体に、前記軸部（９）の周方向に回転するマグネット（１７）と、
前記軸部（９）に、前記マグネット（１７）の回転による変位に伴って自身を貫通する磁束の量が変化する検知部（４３）が配置され、該検知部（４３）からの信号に基づいて、前記マグネット（１７）の変位を検出する磁電変換素子（１９）と、
を備えた液面検出装置（１）であって、
前記軸方向において、前記回転部材（７）の軸孔（５）の内周面と前記軸部（９）の外周面とが対向する軸受け長さ（Ｄ）を設定するとともに、該軸受け長さ（Ｄ）内に、前記マグネット（１７）と前記検知部（４３）とを配置し、
且つ、前記マグネット（１７）の磁力の前記軸方向における中心と前記検知部（４３）とを、前記軸方向と垂直の同一平面に配置し、
更に、前記軸部（７９）の外周面に、前記検知部（８５）を球の中心として球状に形成された球状外周部（８７）を有するとともに、
前記軸孔（７３）の内周面に、前記球状外周部（８７）に沿って前記検知部（８５）を球の中心として球状に形成された球状内周部（８９）を有することを特徴とする液面検出装置。 A rotating member (7) having an axial hole (5) drilled along the axial direction;
A fixing member (11) having a shaft portion (9) extending in the axial direction and fitting the shaft hole (5) to the shaft portion (9) to hold the rotating member (7) rotatably. )When,
A float (13) floating in a liquid;
The float (13) is fixed to one end side and the other end side is fixed to the rotating member (7), and the vertical movement of the float (13) due to the vertical movement of the liquid surface of the liquid is controlled by the rotating member (7). An arm (15) that converts to rotational movement;
A magnet (17) fixed to the rotating member (7), and integrally rotated with the rotating member (7) in the circumferential direction of the shaft portion (9);
A detection unit (43) in which the amount of magnetic flux penetrating through the shaft (9) changes with displacement due to the rotation of the magnet (17) is disposed on the shaft (9), and based on a signal from the detection unit (43). A magnetoelectric transducer (19) for detecting displacement of the magnet (17),
A liquid level detection device (1) comprising:
In the axial direction, a bearing length (D) is set such that the inner peripheral surface of the shaft hole (5) of the rotating member (7) and the outer peripheral surface of the shaft portion (9) are opposed to each other. In (D), the magnet (17) and the detection unit (43) are arranged,
And the center of the magnetic force of the magnet (17) in the axial direction and the detection part (43) are arranged on the same plane perpendicular to the axial direction ,
Furthermore, the outer peripheral surface of the shaft portion (79) has a spherical outer peripheral portion (87) formed in a spherical shape with the detection portion (85) as the center of the sphere,
The inner peripheral surface of the shaft hole (73) has a spherical inner peripheral portion (89) formed in a spherical shape with the detecting portion (85) as the center of the sphere along the spherical outer peripheral portion (87). Liquid level detection device.
グネット（１７）の磁力の中心を配置したことを特徴とする請求項１又は２に記載の液面検出装置。 The liquid according to claim 1 or 2, wherein a center of magnetic force of the magnet (17) is arranged in the center of the bearing length (D) in the axial direction in the rotating member (7). Surface detection device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013006342A JP5880456B2 (en) | 2013-01-17 | 2013-01-17 | Liquid level detector |
| PCT/JP2013/007306 WO2014112004A1 (en) | 2013-01-17 | 2013-12-12 | Liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013006342A JP5880456B2 (en) | 2013-01-17 | 2013-01-17 | Liquid level detector |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014137298A JP2014137298A (en) | 2014-07-28 |
| JP2014137298A5 true JP2014137298A5 (en) | 2015-05-21 |
| JP5880456B2 JP5880456B2 (en) | 2016-03-09 |
Family
ID=51209132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013006342A Expired - Fee Related JP5880456B2 (en) | 2013-01-17 | 2013-01-17 | Liquid level detector |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5880456B2 (en) |
| WO (1) | WO2014112004A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6336923B2 (en) | 2015-01-30 | 2018-06-06 | 愛三工業株式会社 | Liquid level detector |
| JP6336924B2 (en) * | 2015-02-04 | 2018-06-06 | 愛三工業株式会社 | Liquid level detector |
| JP6336925B2 (en) | 2015-02-05 | 2018-06-06 | 愛三工業株式会社 | Liquid level detector |
| CN113410094B (en) * | 2021-06-18 | 2022-08-23 | 宝武集团鄂城钢铁有限公司 | Floating ball liquid level control switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3905707B2 (en) * | 2001-01-09 | 2007-04-18 | 矢崎総業株式会社 | Liquid level sensor |
| JP2002286502A (en) * | 2001-03-23 | 2002-10-03 | Aisin Seiki Co Ltd | Displacement sensor |
-
2013
- 2013-01-17 JP JP2013006342A patent/JP5880456B2/en not_active Expired - Fee Related
- 2013-12-12 WO PCT/JP2013/007306 patent/WO2014112004A1/en active Application Filing
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