JP4973505B2

JP4973505B2 - Blower

Info

Publication number: JP4973505B2
Application number: JP2008000663A
Authority: JP
Inventors: 朋孝鷲見; 正彦丹羽; 忠昭石川; 俊二鈴木; 陽一杉山
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2008-01-07
Filing date: 2008-01-07
Publication date: 2012-07-11
Anticipated expiration: 2028-01-07
Also published as: JP2009162107A

Description

本発明は、羽根車の回転を検知する回転検知センサーを備えた軸流式の送風装置に関するものである。 The present invention relates to an axial-flow type air blower provided with a rotation detection sensor that detects the rotation of an impeller.

送風装置の中には、羽根車の回転を磁気センサー等の回転検知センサーで検知して制御情報として使ったり、温度センサーにより送風温度を検知して制御情報として使ったりするものがある。こうしたセンサーは、羽根車に近接して設けられる羽根ガードに直接、又はセンサー取付部材を介して取付けられている（なお、この種の従来技術としては特許文献１や特許文献２に示されている）。 Some blower devices detect rotation of an impeller with a rotation detection sensor such as a magnetic sensor and use it as control information, or detect a blower temperature with a temperature sensor and use it as control information. Such a sensor is attached to a vane guard provided in the vicinity of the impeller directly or via a sensor attachment member (Note that Patent Document 1 and Patent Document 2 show this type of conventional technology. ).

特開平６−３９６号公報JP-A-6-396 実開平４−９５２６２号公報Japanese Utility Model Publication No. 4-95262

従来のセンサー取付部材は、片持固定された板状の部材で、強度的にも弱く、自由端側にセンサーを取付けているため、センサー位置精度が維持でき難いので、羽根ガードに変位を規制する規制部を取付け、センサー取付部材の自由端側の変位を防いでいる。特に、羽根車の回転を検知する回転検知センサーでは、高い取付位置の精度が必要であり、もともと頑強な構造物ではない羽根ガードに取付位置の精度保持を求めても満足できる取付位置の精度確保はできなかった。 The conventional sensor mounting member is a cantilevered plate-shaped member that is weak in strength and has a sensor mounted on the free end side, so it is difficult to maintain the sensor position accuracy, so the blade guard restricts displacement. A restriction portion is attached to prevent displacement of the sensor attachment member on the free end side. In particular, the rotation detection sensor that detects the rotation of the impeller requires high mounting position accuracy, and ensures that the mounting position accuracy can be satisfied even if it is required to maintain the mounting position accuracy of the blade guard, which is not originally a robust structure. I couldn't.

本発明は、上記した従来の問題点を解決するためになされたもので、回転検知センサーの取付位置の変位が殆どなく、回転検知センサーの取付位置の精度を高く維持できるとともに、必要な羽根ガードに対しても変形等を防ぐことができる送風装置を得ることであり、また、その送風装置の組付性、生産性の向上を図ることである。 The present invention has been made to solve the above-described conventional problems, and there is almost no displacement of the mounting position of the rotation detection sensor, so that the accuracy of the mounting position of the rotation detection sensor can be maintained high, and the necessary blade guard is provided. It is to obtain a blower capable of preventing deformation and the like, and to improve the assembly and productivity of the blower.

上記目的を達成するために本発明は、風洞内で回転する軸流式の羽根車の回転を回転面において風洞の開口端に設けた回転検知センサーで検知するようにした送風装置について、風洞の開口端の略中央を跨ぐ板金製のチャンネル状をしたセンサー取付部材を両持固定し、このセンサー取付部材のウェブ部中央に回転検知センサーを、羽根車に設けた検知プレートを検知できるように取付け、センサー取付部材によって風洞の開口端に設ける線状材でできた羽根ガードを受支える手段を採用する。 In order to achieve the above object, the present invention relates to an air blower configured to detect rotation of an axial-flow impeller rotating in a wind tunnel with a rotation detection sensor provided at an opening end of the wind tunnel on a rotation surface. A sheet metal channel-shaped sensor mounting member straddling the approximate center of the open end is fixed at both ends, and a rotation detection sensor is installed at the center of the web part of this sensor mounting member so that the detection plate provided on the impeller can be detected. The means for receiving and supporting the blade guard made of a linear material provided at the opening end of the wind tunnel by the sensor mounting member is employed.

本発明によれば、回転検知センサーを取付けるセンサー取付部材は、強度の高い板金製のチャンネル状で、両持固定されているので回転検知センサーは、高い精度の取付位置で維持される。そして、このセンサー取付部材に風洞の開口端に設ける線状材でできた羽根ガードを受支えるので、比較的変形し易い羽根ガードも保護される。 According to the present invention, the sensor mounting member for mounting the rotation detection sensor is in the form of a highly strong sheet metal channel and is fixed at both ends, so that the rotation detection sensor is maintained at a highly accurate mounting position. The sensor mounting member receives and supports the blade guard made of a linear material provided at the opening end of the wind tunnel, so that the blade guard that is relatively easily deformed is also protected.

本発明の送風装置は、羽根車の回転を検知する回転検知センサーを備えた軸流式の送風装置に関するものである。回転検知センサーは、風洞内で回転する軸流式の羽根車の回転を回転面において検知し、制御情報として制御回路に提供する。この回転検知センサーを取付けるセンサー取付部材は、風洞の開口端の略中央を跨ぐ（横断する）板金製のチャンネル状に構成され、両端部のウェブ部において両持固定されている。このセンサー取付部材のウェブ部中央に回転検知センサーが、羽根車に設けた検知プレートを検知できるように取付けられている。風洞の開口端には線状材でできた羽根ガードが設けられているが、この羽根ガードは、センサー取付部材のウェブ部で受支えられている。本発明によれば、回転検知センサーを取付けるセンサー取付部材は、強度の高い板金製のチャンネル状で、両持固定されているので回転検知センサーは、変位したりせず高い精度の取付位置で維持される。そして、このセンサー取付部材のウェブ部に風洞の開口端に設けられた線状材でできた羽根ガードが受支えられているので、比較的外力の作用等で変形し易い羽根ガードも補強され保護される。 The blower of the present invention relates to an axial-flow blower provided with a rotation detection sensor that detects the rotation of an impeller. The rotation detection sensor detects the rotation of the axial flow type impeller rotating in the wind tunnel on the rotating surface and provides it to the control circuit as control information. A sensor mounting member for mounting the rotation detection sensor is formed in a sheet metal channel shape that straddles (crosses) the approximate center of the open end of the wind tunnel, and is fixed at both ends at the web portions at both ends. A rotation detection sensor is attached to the center of the web portion of the sensor attachment member so that a detection plate provided on the impeller can be detected. A vane guard made of a linear material is provided at the open end of the wind tunnel, and this vane guard is supported by the web portion of the sensor mounting member. According to the present invention, the sensor mounting member for mounting the rotation detection sensor is in the form of a highly strong sheet metal channel, and is fixed at both ends, so that the rotation detection sensor is not displaced and is maintained at a highly accurate mounting position. Is done. And since the blade guard made of a linear material provided at the opening end of the wind tunnel is supported and supported by the web portion of the sensor mounting member, the blade guard which is relatively easily deformed by the action of external force is also reinforced and protected. Is done.

実施の形態１．
図１は、本実施の形態の送風装置の分解斜視図、図２は、図１のＡ矢印部の拡大平面図、図３は、センサー取付部材の平面図、図４は、センサー取付部材の側面図、図５は、センサー取付部材の端面図、図６は、他の形態のセンサー取付部材の平面図である。 Embodiment 1 FIG.
1 is an exploded perspective view of the blower device of the present embodiment, FIG. 2 is an enlarged plan view of an arrow A part of FIG. 1, FIG. 3 is a plan view of a sensor mounting member, and FIG. FIG. 5 is a side view of the sensor mounting member, and FIG. 6 is a plan view of another type of sensor mounting member.

本実施の形態の送風装置は、羽根車１の回転を検知する回転検知センサー２を備えた軸流式の送風装置に関するものである。回転検知センサー２は、枠体３に保持された風洞４内で回転する軸流式の羽根車１の回転を回転面において検知し、制御情報として制御回路（図示しない）に提供するものである（図２参照）。この回転検知センサー２を取付けるセンサー取付部材５は、風洞４の開口端（この実施の形態では吸込側の開口端）の略中央を跨ぐ（横断する）板金製のチャンネル状に構成され、両端部のウェブ部において枠体３にネジ付けされ両持固定されている（図２，図１参照）。センサー取付部材５の両端は、図３，図４或いは図６に示すように羽根ガード６の位置を規定する位置決め構造７が設けられている。 The blower of the present embodiment relates to an axial flow blower provided with a rotation detection sensor 2 that detects the rotation of the impeller 1. The rotation detection sensor 2 detects the rotation of the axial-flow impeller 1 rotating in the wind tunnel 4 held by the frame 3 on the rotation surface, and provides it to a control circuit (not shown) as control information. (See FIG. 2). The sensor mounting member 5 for mounting the rotation detection sensor 2 is configured in a sheet metal channel shape that straddles (crosses) the approximate center of the open end of the wind tunnel 4 (in this embodiment, the open end on the suction side). The web part is screwed to the frame 3 and is fixed at both ends (see FIGS. 2 and 1). Positioning structures 7 for defining the position of the blade guard 6 are provided at both ends of the sensor mounting member 5 as shown in FIG. 3, FIG. 4 or FIG.

位置決め構造７は、ウェブ部８を幅広にし、当該部にはフランジ部９を欠如した平板構造で、平板部の羽根カード６との当り面１０間の幅寸法は、図６に示すようにフランジ部９間の幅寸法より、羽根ガード６の線状材の間隔に相当する寸法分大きく構成されている。図３に示すものでは位置決め構造７は点対称に構成され、当り面１０は、一方の位置決め構造７の当り面１０は一面で、他方の位置決め構造７の当り面１０とは反対側に位置している。この構成により組付け時の取付け間違いを防止でき、生産性の向上を図ることができる。センサー取付部材５のウェブ部８には、送風方向と略直角に開口部１１が設けられ、センサー取付部材５の装着による圧力損失の増加が防がれている。この開口部１１は、人の指が入らない程度の大きさで、安全性の配慮もされている。 The positioning structure 7 is a flat plate structure in which the web portion 8 is widened and the flange portion 9 is not provided in the web portion 8, and the width dimension between the contact surface 10 with the blade card 6 of the flat plate portion is a flange as shown in FIG. The width dimension between the parts 9 is larger by a dimension corresponding to the distance between the linear members of the blade guard 6. 3, the positioning structure 7 is configured to be point-symmetric, and the contact surface 10 is located on one side of the contact surface 10 of one positioning structure 7 and on the opposite side of the contact surface 10 of the other positioning structure 7. ing. With this configuration, it is possible to prevent mounting errors during assembly, and to improve productivity. The web portion 8 of the sensor mounting member 5 is provided with an opening 11 substantially perpendicular to the air blowing direction, and an increase in pressure loss due to the mounting of the sensor mounting member 5 is prevented. The opening 11 is of a size that does not allow human fingers to enter, and safety is also taken into consideration.

このセンサー取付部材５のウェブ部８中央に回転検知センサー２が、羽根車１に設けた検知プレート１２を検知できるように図２に示すようにネジで確り取付けられている。風洞４の開口端、実質上は枠体３の開放端には、線状材でできた羽根ガード６が設けられているが、この羽根ガード６は、センサー取付部材５のウェブ部８で受支えられている。即ち、センサー取付部材５をネジ固定した後、羽根ガード６をセンサー取付部材５における位置決め構造７の当り面１０に確り当て、この位置で羽根ガード６をネジ固定する。これにより、羽根ガード６自体も精度良く取付けることができ、無理にネジ込み箇所を合わせ羽根ガード６の変形等を招くような不都合を回避することができる。 As shown in FIG. 2, the rotation detection sensor 2 is securely attached to the center of the web portion 8 of the sensor attachment member 5 with a screw as shown in FIG. A vane guard 6 made of a linear material is provided at the open end of the wind tunnel 4, substantially the open end of the frame body 3. The vane guard 6 is received by the web portion 8 of the sensor mounting member 5. It is supported. That is, after fixing the sensor mounting member 5 with screws, the blade guard 6 is brought into contact with the contact surface 10 of the positioning structure 7 in the sensor mounting member 5, and the blade guard 6 is fixed with screws at this position. As a result, the blade guard 6 itself can also be attached with high accuracy, and it is possible to avoid inconveniences such as forcibly aligning the screwed portions and causing deformation of the blade guard 6.

この実施の形態によれば、回転検知センサー２を取付けるセンサー取付部材５は、強度の高い板金製のチャンネル状で、両持固定されているので回転検知センサー２は、変位したりせず高い精度の取付位置で維持される。そして、このセンサー取付部材５のウェブ部８に風洞４（枠体３）の開口端に設けられた線状材でできた羽根ガード６が受支えられているので、比較的外力の作用等で変形し易い羽根ガード６も補強され保護される。 According to this embodiment, the sensor mounting member 5 to which the rotation detection sensor 2 is attached is a high-strength sheet metal channel and is fixed at both ends, so that the rotation detection sensor 2 is not displaced and has high accuracy. Maintained at the mounting position. And since the blade guard 6 made of a linear material provided at the opening end of the wind tunnel 4 (frame body 3) is supported and supported by the web portion 8 of the sensor mounting member 5, the action of the external force is relatively high. The easily deformable blade guard 6 is also reinforced and protected.

送風装置の分解斜視図である。（実施の形態１）It is a disassembled perspective view of an air blower. (Embodiment 1) 図１のＡ矢印部の拡大平面図である。（実施の形態１）It is an enlarged plan view of the A arrow part of FIG. (Embodiment 1) センサー取付部材の平面図である。（実施の形態１）It is a top view of a sensor attachment member. (Embodiment 1) センサー取付部材の側面図である。（実施の形態１）It is a side view of a sensor attachment member. (Embodiment 1) センサー取付部材の端面図である。（実施の形態１）It is an end view of a sensor attachment member. (Embodiment 1) 他の形態のセンサー取付部材の平面図である。（実施の形態１）It is a top view of the sensor attachment member of other forms. (Embodiment 1)

Explanation of symbols

１羽根車、２回転検知センサー、４風洞、５センサー取付部材、６羽根ガード、７位置決め構造、８ウェブ部、１１開口部、１２検知プレート。 DESCRIPTION OF SYMBOLS 1 impeller, 2 rotation detection sensor, 4 wind tunnel, 5 sensor attachment member, 6 blade guard, 7 positioning structure, 8 web part, 11 opening part, 12 detection plate.

Claims

A blower that detects rotation of an axial-flow impeller rotating in a wind tunnel by a rotation detection sensor provided at an opening end of the wind tunnel on a rotation surface, straddling a substantially center of the opening end of the wind tunnel. A sensor mounting member made of a sheet metal channel is fixed at both ends, and a rotation detection sensor is mounted at the center of the web portion of the sensor mounting member so that the detection plate provided on the impeller can be detected. A blower that receives and supports a blade guard made of a linear material provided at an opening end of the wind tunnel.

The blower according to claim 1, wherein a positioning structure for defining a position of the blade guard is provided at both ends of the sensor mounting member.

It is an air blower of Claim 2, Comprising: The air blower which comprised the sensor attachment member symmetrically.

It is an air blower in any one of Claims 1-3, Comprising: The air blower which provided the opening part in the web part of the sensor attachment member at a substantially right angle with the air blowing direction.