JPH0434479U - - Google Patents
Info
- Publication number
- JPH0434479U JPH0434479U JP7687590U JP7687590U JPH0434479U JP H0434479 U JPH0434479 U JP H0434479U JP 7687590 U JP7687590 U JP 7687590U JP 7687590 U JP7687590 U JP 7687590U JP H0434479 U JPH0434479 U JP H0434479U
- Authority
- JP
- Japan
- Prior art keywords
- ring
- piezoelectric element
- convex portion
- shaped groove
- mold
- 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.)
- Granted
Links
Landscapes
- Reciprocating Pumps (AREA)
Description
第１図は、本考案の一実施例を示す一部断面説
明図であり、ａ図はハウジングを示し、ｂ図は圧
電素子を示し、ｃ図は両者を組合わせて圧電ポン
プとした状態を示す。第２図は、本考案の他の実
施例を示す一部断面説明図であり、第３図は、従
来の圧電ポンプの一部断面説明図である。
図中、１はハウジング、２は圧電素子、３はポ
ンプ室、４′，５′は逆止弁、４は吐出口、５は
吸入口、６はＯ−リング、７はリング状溝、８は
凸部、９はモールド、１０はパツキン溝、１１は
固定部材を示す。
Fig. 1 is a partially cross-sectional explanatory view showing an embodiment of the present invention, in which Fig. a shows a housing, Fig. B shows a piezoelectric element, and Fig. C shows a state in which the two are combined to form a piezoelectric pump. show. FIG. 2 is a partially cross-sectional explanatory diagram showing another embodiment of the present invention, and FIG. 3 is a partially cross-sectional explanatory diagram of a conventional piezoelectric pump. In the figure, 1 is a housing, 2 is a piezoelectric element, 3 is a pump chamber, 4', 5' are check valves, 4 is a discharge port, 5 is an inlet port, 6 is an O-ring, 7 is a ring-shaped groove, 8 9 indicates a convex portion, 9 indicates a mold, 10 indicates a packing groove, and 11 indicates a fixing member.
Claims (1)
圧電素子２とでポンプ室３を形成して成る圧電ポ
ンプにおいて、ハウジング１は、断面が凹状のリ
ング状溝７を内部に有し、該リング状溝で包囲さ
れた凸部８には、それぞれ逆止弁４′，５′を配
置した吸入口４及び吐出口５を凸部の頂部平坦面
に開口して設けており、一方、圧電素子２は、円
盤形状を有し、その全周縁部には、外径がリング
状溝７の内壁に沿つて嵌合できる大きさであり、
内径が凸部４の外径より大きいモールド９を形成
しており、しかも、該モールドのリング状溝７に
嵌合する側の圧電素子２からの厚みＨ１は、凸部
８の高さをＨ２としたときに、Ｈ１＞Ｈ２の関係
になされており、そして、ポンプ室３は、前記ハ
ウジングのリング状溝７に前記圧電素子モールド
９を嵌合し、凸部８の頂部平坦面と圧電素子２と
の間に形成されるＨ１−Ｈ２の厚みの間隙部にて
形成されて成ることを特徴とする圧電ポンプ。 (2) ハウジングの凸部８の外周と圧電素子のモ
ールド９の内周との間隙にＯ−リング６を配置し
て成ることを特徴とする請求項第１項記載の圧電
ポンプ。 (3) 圧電素子のモールド９の平坦面であつて、
リング状溝７の底部平坦面に当接する側の平坦面
にリング状のパツキング溝１０が設けられ、該パ
ツキン溝内にＯ−リング６を配置して成ることを
特徴とする請求項第１項記載の圧電ポンプ。[Claims for Utility Model Registration] (1) In a piezoelectric pump in which a pump chamber 3 is formed by a housing 1 and a piezoelectric element 2 fixed to the housing, the housing 1 has a ring-shaped groove 7 having a concave cross section. The convex portion 8 surrounded by the ring-shaped groove has an inlet port 4 and a discharge port 5 having check valves 4' and 5', respectively, which are opened at the top flat surface of the convex portion. On the other hand, the piezoelectric element 2 has a disk shape, and its entire peripheral edge has an outer diameter large enough to fit along the inner wall of the ring-shaped groove 7.
A mold 9 is formed whose inner diameter is larger than the outer diameter of the convex portion 4, and the thickness H1 from the piezoelectric element 2 on the side that fits into the ring-shaped groove 7 of the mold is equal to the height of the convex portion 8. The pump chamber 3 is constructed by fitting the piezoelectric element mold 9 into the ring-shaped groove 7 of the housing and flattening the top of the convex portion 8 . A piezoelectric pump characterized in that it is formed in a gap having a thickness of H1 - H2 formed between a surface and a piezoelectric element 2. (2) The piezoelectric pump according to claim 1, characterized in that an O-ring 6 is disposed in a gap between the outer periphery of the convex portion 8 of the housing and the inner periphery of the mold 9 of the piezoelectric element. (3) A flat surface of the mold 9 of the piezoelectric element,
Claim 1 characterized in that a ring-shaped packing groove 10 is provided on the flat surface of the ring-shaped groove 7 on the side that comes into contact with the bottom flat surface, and an O-ring 6 is disposed within the packing groove. Piezoelectric pump as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7687590U JP2510590Y2 (en) | 1990-07-19 | 1990-07-19 | Piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7687590U JP2510590Y2 (en) | 1990-07-19 | 1990-07-19 | Piezoelectric pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0434479U true JPH0434479U (en) | 1992-03-23 |
| JP2510590Y2 JP2510590Y2 (en) | 1996-09-11 |
Family
ID=31618737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7687590U Expired - Fee Related JP2510590Y2 (en) | 1990-07-19 | 1990-07-19 | Piezoelectric pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2510590Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009281321A (en) * | 2008-05-23 | 2009-12-03 | Alps Electric Co Ltd | Driver-integrated piezoelectric pump |
| CN103104442A (en) * | 2011-11-15 | 2013-05-15 | 林淑媛 | Installation method for piezoelectric pump and piezoelectric ceramic piece |
-
1990
- 1990-07-19 JP JP7687590U patent/JP2510590Y2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009281321A (en) * | 2008-05-23 | 2009-12-03 | Alps Electric Co Ltd | Driver-integrated piezoelectric pump |
| CN103104442A (en) * | 2011-11-15 | 2013-05-15 | 林淑媛 | Installation method for piezoelectric pump and piezoelectric ceramic piece |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2510590Y2 (en) | 1996-09-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |