JP2551791B2 - Pump device - Google Patents
Pump deviceInfo
- Publication number
- JP2551791B2 JP2551791B2 JP62288576A JP28857687A JP2551791B2 JP 2551791 B2 JP2551791 B2 JP 2551791B2 JP 62288576 A JP62288576 A JP 62288576A JP 28857687 A JP28857687 A JP 28857687A JP 2551791 B2 JP2551791 B2 JP 2551791B2
- Authority
- JP
- Japan
- Prior art keywords
- electric motor
- pump
- overheat protector
- recess
- casing
- 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.)
- Expired - Fee Related
Links
- 230000001012 protector Effects 0.000 claims description 17
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
【発明の詳細な説明】 「産業上の利用分野」 本発明は、電動機にポンプを直結すると共に過熱保護
器を備えるポンプ装置に関する。TECHNICAL FIELD The present invention relates to a pump device in which a pump is directly connected to an electric motor and which is provided with an overheat protector.
「従来の技術」 ポンプ装置は、遺物の混入や凍結などによって羽根車
がロックされて電動機が焼損するおそれがあり、また、
水がなくなっているのに運転が継続されるとポンプが異
常に温度上昇してパッキングなどの破損が発生する恐れ
がある。"Prior Art" In pump devices, the impeller may be locked due to the inclusion or freezing of relics and the electric motor may burn out.
If the pump continues running even though there is no water, the temperature of the pump may rise abnormally and damage such as packing may occur.
このため、一定の温度以上に温度上昇すると電動機の
電源を遮断するなどの方法を講じていた。このような異
常温度上昇に対して従来のポンプ装置は、電動機に備え
られる電動機の焼損防止器、あるいはポンプに備えられ
る空運転防止器がそれぞれ電動機及びポンプを保護して
いる。For this reason, when the temperature rises above a certain temperature, the power of the electric motor is cut off. With respect to such an abnormal temperature rise, in the conventional pump device, an electric motor burnout preventer provided in the electric motor or an idle operation preventor provided in the pump protects the electric motor and the pump, respectively.
「発明が解決しようとする問題点」 しかし、従来の方法では、部品点数が増加するばかり
か、配線が増加し接続が容易ではなく、製造上不都合で
あった。[Problems to be Solved by the Invention] However, in the conventional method, not only the number of parts is increased, but also wiring is increased and connection is not easy, which is inconvenient in manufacturing.
本発明は、このような事情に鑑みてなされたものであ
り、異常温度上昇時に的確に保護ができると共に製作上
の都合が良いポンプ装置を提供することを目的としてい
る。The present invention has been made in view of the above circumstances, and an object thereof is to provide a pump device that can be appropriately protected when an abnormal temperature rises and is convenient in manufacturing.
「問題点を解決するための手段」 本発明は、電動機の固定子を樹脂モールドで構成し、
この電動機とポンプの接合部に密着部を形成し、この密
着部に凹部を形成し、この凹部に過熱保護器を装着した
ことによって問題点を解決している。"Means for Solving Problems" The present invention comprises a stator of an electric motor formed of a resin mold,
The problem is solved by forming a close contact at the joint between the electric motor and the pump, forming a recess in the close contact, and mounting an overheat protector in the recess.
「作用」 電動機とポンプとを密着させて凹部を形成するため、
この凹部に装着された過熱保護器は、ポンピと電動機と
の双方の温度を検出することができ、しかも、温度保護
器は、１個備えることによってポンプと電動機との双方
の保護ができる。"Operation" In order to make the electric motor and the pump adhere to each other to form the concave portion,
The overheat protector mounted in this recess can detect the temperatures of both the pump and the electric motor, and by providing one temperature protector, it is possible to protect both the pump and the electric motor.
すなわち、電動機に異常があっても、ポンプに異常が
あっても過熱保護器が動作し、ポンプ及び電動機を保護
することができる。That is, even if the electric motor has an abnormality or the pump has an abnormality, the overheat protector operates to protect the pump and the electric motor.
「実施例」 本発明を図面に示された一実施例に基づいて説明する
と、第１図は、本発明のポンプ装置を示す要部縦断面図
であり、第２図は、そのポンプのケーシングの形状を示
す要部平面図である。"Embodiment" The present invention will be described based on an embodiment shown in the drawings. Fig. 1 is a longitudinal sectional view of a main part showing a pump device of the present invention, and Fig. 2 is a casing of the pump. It is a principal part top view which shows the shape of.
第１図において、ポンプ装置は、電動機１にポンプ２
が直結されており、電動機１の構成は、固定子３が樹脂
モールドでフレーム４を形成している。In FIG. 1, the pump device includes a motor 1 and a pump 2
Are directly connected, and in the configuration of the electric motor 1, the stator 3 forms the frame 4 by resin molding.
そして、固定子３の内径側には、回転子５が備えられ
ており、その軸６には、ポンプ２の内側で羽根車７が備
えられている。A rotor 5 is provided on the inner diameter side of the stator 3 and an impeller 7 is provided on the shaft 6 inside the pump 2.
さらに、電動機１のフレーム４とポンプ２のケーシン
グ８とが密着するように、それぞれに平面部分が形成さ
れ、密着部９を形成している。Further, a flat portion is formed on each of the frame 4 of the electric motor 1 and the casing 8 of the pump 2 so as to be in close contact with each other, and a close contact portion 9 is formed.
また、密着部９には、ケーシング８に凹部10が形成さ
れており、過熱保護器11が内装されている。A recess 10 is formed in the casing 8 of the close contact portion 9, and an overheat protector 11 is incorporated therein.
過熱保護器11は、凹部10でボンドなどの取り付け部材
が介在されており、凹部10に固定されている。The overheat protector 11 has a mounting member such as a bond interposed in the recess 10 and is fixed to the recess 10.
第２図において、ポンプ２のケーシング８には、凹部
10が形成されており、取り付け部材12を介して過熱保護
器11が取り付けられている。In FIG. 2, the casing 8 of the pump 2 has a recessed portion.
10 is formed, and the overheat protector 11 is attached via the attachment member 12.
過熱保護器11は、図示されないが電源と電動機との間
に電気的に介在されており、過熱保護器11が動作するこ
とによって電動機１の電源が遮断されるように構成され
ている。Although not shown, the overheat protector 11 is electrically interposed between the power source and the electric motor, and is configured so that the electric power of the electric motor 1 is shut off by the operation of the overheat protector 11.
このような構成において、ポンプ装置は、電動機１が
運転されることによって羽根車７が回転し、ポンプ装置
として機能する。In such a configuration, the pump device functions as a pump device as the impeller 7 rotates when the electric motor 1 is operated.
そして、万一羽根車８に異物が混入するなどの原因で
回転子５の回転がロックされると電動機１が発熱する。If the rotation of the rotor 5 is locked due to the inclusion of foreign matter in the impeller 8 or the like, the electric motor 1 will generate heat.
電動機１が発熱すると過熱保護器11が動作して電動機
１の電源を遮断する。When the electric motor 1 generates heat, the overheat protector 11 operates to cut off the electric power of the electric motor 1.
そして、ポンプ２が空運転した場合、次第にケーシン
グ８の温度上昇が起こり、ついには、パッキングなどが
破損することになるが、ケーシング８の温度は、過熱防
止器11によって検出された過熱防止器11を動作させ、電
動機１の過熱と同じく電源を遮断してポンプの運転を中
止する。Then, when the pump 2 runs idle, the temperature of the casing 8 gradually rises and eventually the packing and the like are damaged. However, the temperature of the casing 8 is detected by the overheat protector 11 detected by the overheat protector 11. Is operated to shut off the power supply in the same manner as when the electric motor 1 is overheated to stop the operation of the pump.
また、このような過熱防止器11の取り付けは、ケーシ
ング８に凹部10を形成したことによって簡単に行え、組
み立ての都合が良い。Further, such mounting of the overheat preventive device 11 can be easily performed by forming the concave portion 10 in the casing 8, which is convenient for assembly.
さらに、配線が過熱防止器11が１個で良くなり、簡単
に行えることになる。Further, the wiring can be improved by using only one overheat protector 11, which can be easily performed.
しかも、過熱防止器11は、電動機１の温度が固定子３
を樹脂でモールドしてフレーム４を形成しており、これ
をケーシング８に密着させてその間に凹部10を形成して
いるため、ケーシング８及び電動機１の温度を確実に検
出して動作し、信頼性の高い動作が期待できる。Moreover, the temperature of the electric motor 1 is fixed to the stator 3
Is molded with resin to form the frame 4, and the casing 8 is brought into close contact with it to form the recessed portion 10 therebetween, so that the temperature of the casing 8 and the electric motor 1 can be reliably detected to operate, and It can be expected to be highly functional.
さらに、凹部10をケーシング８に溝状に形成しておけ
ば、任意の位置に過熱保護器11を備えることができ、ま
た、溝状の凹部10の形成は、加工が容易であり都合が良
い 勿論、このような凹部10は、電動機１のフレーム４に
形成することができる。Furthermore, if the recess 10 is formed in the casing 8 in the shape of a groove, the overheat protector 11 can be provided at any position, and the formation of the groove-shaped recess 10 is easy and convenient. Of course, such a recess 10 can be formed in the frame 4 of the electric motor 1.
「発明の効果」 本発明によれば、電動機とポンプとの温度を検出して
異常に温度が上昇した場合、電源を遮断して電動機及び
ポンプを保護することができ、加工上及び組み立て上の
都合が良く、また、部品点数が少なく配線が容易にな
り、その効果はきわめて大きいものである。[Advantages of the Invention] According to the present invention, when the temperatures of the electric motor and the pump are detected and the temperature rises abnormally, the electric power can be cut off to protect the electric motor and the pump. It is convenient, the number of parts is small, and the wiring is easy, and the effect is extremely large.
第１図は、本発明のポンプ装置を示す要部縦断面図であ
り、第２図は、そのポンプのケーシングの形状を示す要
部平面図である。 １……電動機、２……ポンプ、３……固定子、４……フ
レーム、７……羽根車、８……ケーシング、９……密着
部、10……凹部、11……過熱防止機。FIG. 1 is a longitudinal sectional view of an essential part showing a pump device of the present invention, and FIG. 2 is a plan view of the essential part showing the shape of the casing of the pump. 1 ... Electric motor, 2 ... Pump, 3 ... Stator, 4 ... Frame, 7 ... Impeller, 8 ... Casing, 9 ... Adhesive part, 10 ... Recess, 11 ... Overheat prevention device.
Claims (1)
器を備えるポンプ装置において、電動機の固定子を樹脂
モールドで構成し、前記電動機の固定子とポンプケーシ
ングの接合部に密着部を形成し、この密着部の内部に凹
部を形成し、この凹部に過熱保護器を装着したことを特
徴とするポンプ装置。1. A pump device having a pump directly connected to an electric motor and having an overheat protector, wherein a stator of the electric motor is made of resin mold, and a contact portion is formed at a joint between the electric motor stator and a pump casing. A pump device characterized in that a recess is formed inside the contact portion, and an overheat protector is mounted in the recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62288576A JP2551791B2 (en) | 1987-11-17 | 1987-11-17 | Pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62288576A JP2551791B2 (en) | 1987-11-17 | 1987-11-17 | Pump device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01130091A JPH01130091A (en) | 1989-05-23 |
| JP2551791B2 true JP2551791B2 (en) | 1996-11-06 |
Family
ID=17732051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62288576A Expired - Fee Related JP2551791B2 (en) | 1987-11-17 | 1987-11-17 | Pump device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2551791B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5288805A (en) * | 1976-01-21 | 1977-07-25 | Hitachi Ltd | Motor pump |
| JPS5898695A (en) * | 1981-12-09 | 1983-06-11 | Hitachi Ltd | Device for pump |
| JPS60173393A (en) * | 1984-05-11 | 1985-09-06 | Hitachi Ltd | electric well pump |
-
1987
- 1987-11-17 JP JP62288576A patent/JP2551791B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01130091A (en) | 1989-05-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |