CN201236968Y - Flow passage switch valve - Google Patents
Flow passage switch valve Download PDFInfo
- Publication number
- CN201236968Y CN201236968Y CNU2008201191843U CN200820119184U CN201236968Y CN 201236968 Y CN201236968 Y CN 201236968Y CN U2008201191843 U CNU2008201191843 U CN U2008201191843U CN 200820119184 U CN200820119184 U CN 200820119184U CN 201236968 Y CN201236968 Y CN 201236968Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve casing
- casing
- pipe joint
- flow passage
- 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 - Lifetime
Links
- 229910000679 solder Inorganic materials 0.000 claims abstract description 12
- 239000012530 fluid Substances 0.000 claims abstract description 11
- 238000005476 soldering Methods 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 20
- 230000008595 infiltration Effects 0.000 claims 1
- 238000001764 infiltration Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 description 15
- 210000005239 tubule Anatomy 0.000 description 5
- 230000004927 fusion Effects 0.000 description 4
- 239000006200 vaporizer Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Images
Abstract
The utility model relates to a flow passage change-over valve. The utility model aims to providea flow passage change-over valve which can accommodate fused solder leaking in the valve casing, prevent the solder from being attached to the inner circumferential surface of the valve casing, and ensure the sealing performances of the valve casing and the piston. A flow passage change-over valve (1) is provided with a main valve (2) and a solenoid valve part (3); the main valve (2) is provided with a valve casing (4), a valve seat (12) for three fluid openings arranged in one straight line along the direction of the axial line of the valve casing, a valve body sliding on the valve seat, a pair of pistons (9) which are respectively connected at the both ends of the valve body and slide on the inner circumferential surface of the valve casing, and a pipe connector (E5), a pipe connector (C6) and a pipe connector (S7) which are respectively connected with the valve casing (4) through soldering, also connected with the valve seat and respectively communicate with the three fluid openings; and the flow passage change-over valve is characterized in that accommodating grooves (14) are respectively formed in the direction of the axial line of the valve casing (4) and on the entire inner circumferential surface at the juncture between the both ends of the valve seat (12) and the inner circumferential surface of the valve casing (4).
Description
Technical field
The utility model relates to a kind of runner changing valve, relates in particular on the axial direction of runner changing valve main body, on the whole inner peripheral surface of the intersection of the inner peripheral surface of the two ends of valve seat and valve casing receiving groove is set, to improve the runner changing valve of sealing, durability.
Background technique
The runner changing valve is used for the runner of fluid circuit convection cell to be changed, and is used for changing between the cold air loop of for example cryogen circuit and the heating installation loop as a kind of four-port conversion value of runner changing valve.
An example as this four-port conversion value is documented among patent documentation 1-TOHKEMY 2005-113990.This four-port conversion value 51 is as Fig. 4-shown in Figure 5, it has main valve 2 and makes the solenoid valve portion of these main valve 2 actions, and main valve 2 is connected with the cryogen circuit that is made of compressor, condenser, vaporizer by pipe joint (evaporator tube joint E5, condenser tube joint C6, suction port pipe joint S7 and exhaust port pipe joint D8).And, operate main valve 2 by driving solenoid valve portion, main valve 2 has valve casing 4, be arranged in the valve casing 4 and have the valve body of arranging the valve seat 12 of three fluid flow ports point-blank and on valve seat 12, sliding along the axial direction of valve casing 4, be connected to the pair of pistons 9 of two ends of valve body, between the end of a piston 9 and valve casing 4 is vaporizer side (E side) piston chamber 10, between the end of another piston 9 and valve casing 4 is condenser side (C side) piston chamber 11, piston 9 is slided on the inner peripheral surface of valve casing 4, valve body is slided on valve seat 12, and optionally cover two adjacent fluid flow ports and make its connection with the recess that on the slip surface of valve body, is provided with.In addition, pipe joint E5, pipe joint C6 and pipe joint S7 are connected with valve casing 4 respectively by soldering and are connected with valve seat 12, and pipe joint D8 is connected with valve casing 4 by soldering.Solenoid valve portion also has the structure similar to main valve 2.
The subject matter that this four-port conversion value exists is, shown in the B enlarged view of Fig. 5, with pipe joint E5, pipe joint C6 and pipe joint S7 is connected with valve casing 4 respectively by soldering and when being connected with valve seat 12, because capillarity, the solder of fusion might be in the path shown in the label 13 penetrates into valve casing 4, and, destroy the original surface finishment of valve casing 4 inner peripheral surfaces attached on the slip surface between piston 9 and the valve casing 4 (inner peripheral surface of valve casing 4), can not guarantee its sealing.If the ultimate range apart from valve seat 12 end faces when establishing piston 9 and being positioned at low order end is a (with reference to Fig. 5), when moving to minimum range and be b (with reference to Fig. 3), then its difference a-b represents the sliding scale of piston 9, if solder penetrates in this scope, then the end face of piston 9 will sustain damage, cause its cisco unity malfunction, even need in advance this surface to be processed again.
Summary of the invention
The purpose of this utility model just is to address the above problem, provide a kind of can be when brazed pipe joint and valve casing and valve seat, can be contained in the solder that penetrates into the fusion in the valve casing under the capillarity, can prevent solder attached on the slip surface between piston and the valve casing (inner peripheral surface of valve casing), thereby guarantee the runner changing valve of its sealing and durability.
For achieving the above object, the scheme of runner changing valve of the present utility model is that it has main valve and solenoid valve portion; Above-mentioned main valve has valve casing, be arranged in the valve casing and have and arrange the valve seat of three fluid flow ports point-blank and the valve body that on valve seat, slides along the axial direction of valve casing, the pair of pistons that is connected to the valve body two ends and on the inner peripheral surface of valve casing, slides, the pipe joint (E), pipe joint (C) and the pipe joint (S) that are connected with valve casing respectively and are connected and are communicated with above-mentioned three fluid flow ports respectively by soldering with valve seat; It is characterized in that, on the axial direction of valve casing, on the whole inner peripheral surface of the intersection of the two ends of valve seat and valve casing inner peripheral surface, be provided with receiving groove.
Above-mentioned receiving groove can be any in V-type groove, U type groove and the semi-circular groove.
Effect of the present utility model is, because on the axial direction of valve casing, on the whole inner peripheral surface of the intersection of the two ends of valve seat and valve casing inner peripheral surface, be provided with receiving groove, thereby when brazed pipe joint and valve casing and valve seat, can be contained in the solder that penetrates into the fusion in the valve casing under the capillarity, solder be can prevent attached on the slip surface between piston and the valve casing (inner peripheral surface of valve casing), thereby its sealing and durability guaranteed.
Description of drawings
Fig. 1 is an embodiment's of the expression runner changing valve of the present utility model elevational cross-sectional view of four-port conversion value.
Fig. 2 (a) is the elevational cross-sectional view of the solenoid valve portion of four-port conversion value shown in Figure 1, and Fig. 2 (b) is its plan view, and Fig. 2 (c) is the left side view of Fig. 2 (b).
Fig. 3 is the partial enlarged drawing of the A portion of four-port conversion value shown in Figure 1.
Fig. 4 is the elevational cross-sectional view of the four-port conversion value of expression prior art.
Fig. 5 is the partial enlarged drawing of the B portion of four-port conversion value shown in Figure 4.
Among the figure: 1-four-port conversion value (embodiment of runner changing valve of the present utility model), 2-main valve, 3-solenoid valve portion, 3A-solenoid valve portion main body, 4-valve casing, 5-pipe joint E, 6-pipe joint C, 7-pipe joint S, 8-pipe joint D, 9-piston, 10-E side piston chamber, 11-C side piston chamber, 12-valve seat, the solder of 13-fusion infiltrates the path in the valve casing, 14-receiving groove under capillarity.15-E pipe, 16-C pipe, 17-S pipe, 18-D pipe, 51-four-port conversion value.
Embodiment
Below, with reference to accompanying drawing a mode of execution of the present utility model is described in detail.
Fig. 1 is an embodiment's of the expression runner changing valve of the present utility model elevational cross-sectional view of four-port conversion value, Fig. 2 (a) is the elevational cross-sectional view of the solenoid valve portion of four-port conversion value shown in Figure 1, Fig. 2 (b) is its plan view, Fig. 2 (c) is the left side view of Fig. 2 (b), and Fig. 3 is the partial enlarged drawing of the A portion of four-port conversion value shown in Figure 1.
As shown in the figure, four-port conversion value 1 is made of main valve 2 and solenoid valve portion 3.Main valve 2 has valve casing 4, be arranged in the valve casing 4 and have and arrange the valve seat 12 of three fluid flow ports point-blank and the valve body that on valve seat 12, slides along the axial direction of valve casing 4, be connected to the pair of pistons 9 of two ends of valve body, between the end of a piston 9 and valve casing 4 is vaporizer side (E side) piston chamber 10, between the end of another piston 9 and valve casing 4 is condenser side (C side) piston chamber 11, piston 9 is slided on the inner peripheral surface of valve casing 4, then valve body slides on valve seat 12, and optionally covers two adjacent fluid flow ports and make its connection with the recess that is provided with on the slip surface of valve body.In addition, pipe joint E5, pipe joint C6 and pipe joint S7 are connected with valve casing 4 respectively by soldering and are connected with valve seat 12, and pipe joint D8 is connected with valve casing 4 by soldering.Solenoid valve portion 3 also has the structure similar to main valve 2, that is, above-mentioned solenoid valve portion 3 have the main body 3A of solenoid valve portion and the tubule E pipe 15 that is connected with vaporizer (E side) side piston chamber 10 respectively, the tubule C pipe 16 that is connected with condenser (C side) side piston chamber 11, the tubule S that is connected with suction port pipe joint S7 manage 17 and the tubule D that is connected with exhaust port pipe joint D8 manage 18.
The above-mentioned solenoid valve main body 3A of portion is a cuboid, and above-mentioned E pipe 15, S pipe 16, C manage 17 3 tubules and be arranged on foursquare of above-mentioned cuboid, and above-mentioned D pipe 18 is arranged on one of the above-mentioned cuboid face with above-mentioned foursquare quadrature.
For fear of at brazed pipe joint E5, when pipe joint C6 and pipe joint S7, the solder of fusion is under capillary effect, along the path shown in the label 13 of the B portion enlarged view of Fig. 5, promptly along the gap of pipe joint and valve casing 4 and the gap of valve casing 4 and valve seat 12 enter into the end face of valve seat 12 and valve casing 4 inner peripheral surface intersection and along the end face diffusion of the inner peripheral surface of valve casing 4 to piston 9, even when entering in the sliding scale a-b of aforementioned piston 9, not only to destroy the sealing between piston 9 and the valve casing 4, even to damage the end face of piston 9, cause the runner changing valve can't proper functioning.Therefore, the measure that the utility model is taked is, the receiving groove that ring-type is set along the whole inner peripheral surface of valve casing 4 at the intersection of the inner peripheral surface of the end face of valve seat 12 and valve casing 4 infiltrates the molten solder of coming in when being contained in soldering, thereby has avoided the generation of the problems referred to above.
This receiving groove can be any in V-type groove, U type groove or the semi-circular groove, can be the receiving groove of other form also, is not limited in this respect.
This receiving groove can use corresponding common processing method to process according to the form of the receiving groove that is adopted.
Claims (2)
1. a runner changing valve has main valve and solenoid valve portion; Above-mentioned main valve has valve casing, be arranged in the valve casing and have and arrange the valve seat of three fluid flow ports point-blank and the valve body that on valve seat, slides along the axial direction of valve casing, the pair of pistons that is connected to the valve body two ends and on the inner peripheral surface of valve casing, slides, the pipe joint (E), pipe joint (C) and the pipe joint (S) that are connected with valve casing respectively and are connected and are communicated with above-mentioned three fluid flow ports respectively by soldering with valve seat; It is characterized in that,
On the axial direction of valve casing, on the whole inner peripheral surface of the intersection of the two ends of valve seat and valve casing inner peripheral surface, be provided with the receiving groove of the solder that holds infiltration.
2. runner changing valve as claimed in claim 1 is characterized in that, above-mentioned receiving groove is any in V-type groove, U type groove and the semi-circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201191843U CN201236968Y (en) | 2008-07-15 | 2008-07-15 | Flow passage switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201191843U CN201236968Y (en) | 2008-07-15 | 2008-07-15 | Flow passage switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236968Y true CN201236968Y (en) | 2009-05-13 |
Family
ID=40649699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201191843U Expired - Lifetime CN201236968Y (en) | 2008-07-15 | 2008-07-15 | Flow passage switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236968Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649143A (en) * | 2019-03-04 | 2020-09-11 | 株式会社鹭宫制作所 | Flow control valve |
-
2008
- 2008-07-15 CN CNU2008201191843U patent/CN201236968Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111649143A (en) * | 2019-03-04 | 2020-09-11 | 株式会社鹭宫制作所 | Flow control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090513 |
|
| CX01 | Expiry of patent term |