CN2425242Y

CN2425242Y - Electromagnetic control valve for temp. of refrigerator

Info

Publication number: CN2425242Y
Application number: CN 00220268
Authority: CN
Inventors: 谷云霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-11
Filing date: 2000-05-11
Publication date: 2001-03-28
Anticipated expiration: 2010-05-11

Abstract

The utility model relates to a double-temperature double-control electromagnetic valve for a refrigerator-freezer, comprising a valve body, a coil [2], a valve core [4], an inlet channel [12], a first outlet channel [1] and a second outlet channel [6], wherein, the channels are respectively accessed to a valve cavity [13]. The utility model is characterized in that a first permanent magnet [3] and a second permanent magnet [10] which have the same polarity are oppositely arranged at both side parts of the valve core [4]. A return spring, a rubber element and other components are omitted, so that components and parts of the utility model is reduced by almost a half than components and parts of traditional electromagnetic valves; the electromagnetic valve is only electrified in a short time in an operating state. The utility model has the advantages of easy fabrication, reliable performance and less electric consumption.

Description

Refrigerator double temperature double control solenoid valve

The utility model relates to the solenoid valve that uses on a kind of double temperature double control refrigerator, and it is arranged in the circulatory system of refrigeration agent.

In the prior art, for refrigerating chamber and the cold storage room that makes refrigerator can carry out temperature control independently, by the break-make control refrigerant flow direction cold storage room or the refrigerating chamber of solenoid valve.Solenoid valve comprises valve body, is enclosed within coil on the described valve body, is arranged at the spool in the valve pocket in the described valve body, and inlet passage, first outlet passage, second outlet passage lead to valve pocket respectively; Under first working state, when described spool was blocked the interior oral area of described first outlet passage, described inlet passage was connected with described second outlet passage by valve pocket; Under second working state, when described spool was blocked the interior oral area of described second outlet passage, described inlet passage was connected with described first outlet passage by valve pocket.Be provided with Returnning spring in the spool, when the solenoid valve dead electricity, spool is closed first outlet passage under the effect of Returnning spring, and refrigeration agent flows into second outlet passage by inlet passage; When coil electricity, spool overcomes Returnning spring under the effect of magnetic force elastic force moves to another side, and spool is closed the second outlet mouthful passage, and refrigeration agent enters first outlet passage by inlet passage.The solenoid valve of this structure has been because rubber seal has been adopted in inside, welding in the manufacture process easy soldered high temperature damage, surplus component reach nearly 20, cost is very high, owing to used spring and rubber parts, parts are easily aging simultaneously.Under solenoid valve got electricity condition, coil was wanted long-term and is chargedly begun day power consumption increase to following one-period.

The purpose of this utility model is to provide a kind of refrigerator double temperature double control solenoid valve simple in structure.

The technical solution of the utility model is: a kind of refrigerator double temperature double control solenoid valve, comprise valve body, be enclosed within coil on the described valve body, be arranged at the spool in the valve pocket in the described valve body, inlet passage, first outlet passage, second outlet passage lead to valve pocket respectively; Under first working state, when described spool was blocked the interior oral area of described first outlet passage, described inlet passage was connected with described second outlet passage by valve pocket; Under second working state, when described spool was blocked the interior oral area of described second outlet passage, described inlet passage was connected with described first outlet passage by valve pocket; The both sides of described spool are provided with first permanent magnet and second permanent magnet that same polarity is oppositely arranged.Behind the forward half-wave current that coil is provided some, the magnetic force that coil produces makes spool be first working state to mobile on one side, and two magnetic force that permanent magnet produced have formed a kind of chucking power to spool, make the stable working state of winning.Behind the reverse half-wave current that coil is provided some, the opposing magnetic field power that coil produces makes spool move to another side to be second working state, two magnetic force that permanent magnet produced have formed a kind of chucking power to spool, make second stable working state.

The utility model compared with prior art has following advantage:

The utility model has omitted parts such as Returnning spring and rubber parts, its number of components and parts than the component of traditional solenoid valve lacked near half, easy to manufacture, reliable performance.It is charged that solenoid valve is the short time in working order down, and power consumption is few.

The utility model will be further described below in conjunction with drawings and Examples:

Structure sectional view when accompanying drawing 1 is second working state for the utility model;

Accompanying drawing 2 is the A-A direction sectional view of accompanying drawing 1; Wherein:

[1], first outlet passage; [2], coil; [3], first permanent magnet; [4], spool; [5], second valve nozzle; [6], second outlet passage; [7], first valve nozzle; [8], valve body outer tube; [9], first sealed steel ball; [10], second permanent magnet; [11], second sealed steel ball; [12], inlet passage; [13], valve pocket; [14], water conservancy diversion gap.

Embodiment: referring to accompanying drawing 1 and accompanying drawing 2, a kind of refrigerator double temperature double control solenoid valve, comprise valve body, be enclosed within coil [2] on the described valve body, be arranged at the spool [4] in the valve pocket [13] in the described valve body, inlet passage [12], first outlet passage [1], second outlet passage [6] lead to valve pocket [13] respectively; Under first working state, when described spool [4] was blocked the interior oral area of described first outlet passage [1], described inlet passage [12] was connected with described second outlet passage [6] by valve pocket [13]; (see accompanying drawing 1) under second working state, when described spool [4] was blocked the interior oral area of described second outlet passage [6], described inlet passage [12] was connected with described first outlet passage [1] by valve pocket [13]; The both sides of described spool [4] are provided with first permanent magnet [3] and second permanent magnet [10] that same polarity is oppositely arranged (two for example relative end faces all are the N utmost point or all are the s utmost point), and described first permanent magnet [3] and second permanent magnet [10] are arranged at the both sides of coil [2].

The two end part of described spool [4] are embedded with first sealed steel ball [9] and second sealed steel ball [11] respectively mutually; Under first working state, the outer surface of described first sealed steel ball [9] seals mutually with the interior oral area of first outlet passage [1]; Under second working state, the outer surface of described second sealed steel ball [11] seals mutually with the interior oral area of second outlet passage [6].

Described valve body comprise in a tubular form valve body outer tube [8], mutually be embedded in first valve nozzle [7] in the inner chamber of described valve body outer tube [8], be embedded in second valve nozzle [5] in the inner chamber of described valve body outer tube [8] mutually, be provided with first outlet passage [1] in described first valve nozzle [7], be provided with second outlet passage [6] in described second valve nozzle [5].

Be provided with axial water conservancy diversion gap [14] between the internal surface of the outer surface of described spool [4] and valve pocket [13], the refrigeration agent that makes inlet passage [12] flow in the valve pocket [13] can enter in second outlet passage [6] or first outlet passage [1] through water conservancy diversion gap [14].

Claims

1, a kind of refrigerator double temperature double control solenoid valve, comprise valve body, be enclosed within coil [2] on the described valve body, be arranged at the spool [4] in the valve pocket [13] in the described valve body, inlet passage [12], first outlet passage [1], second outlet passage [6] lead to valve pocket [13] respectively; Under first working state, when described spool [4] was blocked the interior oral area of described first outlet passage [1], described inlet passage [12] was connected with described second outlet passage [6] by valve pocket [13]; Under second working state, when described spool [4] was blocked the interior oral area of described second outlet passage [6], described inlet passage [12] was connected with described first outlet passage [1] by valve pocket [13]; It is characterized in that: the both sides of described spool [4] are provided with first permanent magnet [3] and second permanent magnet [10] that same polarity is oppositely arranged.

2, refrigerator double temperature double control solenoid valve according to claim 1 is characterized in that: the two end part of described spool [4] are embedded with first sealed steel ball [9] and second sealed steel ball [11] respectively mutually; Under first working state, the outer surface of described first sealed steel ball [9] seals mutually with the interior oral area of first outlet passage [1]; Under second working state, the outer surface of described second sealed steel ball [11] seals mutually with the interior oral area of second outlet passage [6].

3, refrigerator double temperature double control solenoid valve according to claim 1, it is characterized in that: described valve body comprise in a tubular form valve body outer tube [8], mutually be embedded in first valve nozzle [7] in the inner chamber of described valve body outer tube [8], be embedded in second valve nozzle [5] in the inner chamber of described valve body outer tube [8] mutually, be provided with first outlet passage [1] in described first valve nozzle [7], be provided with second outlet passage [6] in described second valve nozzle [5].

4, refrigerator double temperature double control solenoid valve according to claim 1 is characterized in that: described first permanent magnet [3] and second permanent magnet [10] are arranged at the both sides of coil [2].

5, refrigerator double temperature double control solenoid valve according to claim 1 is characterized in that: be provided with axial water conservancy diversion gap [14] between the internal surface of the outer surface of described spool [4] and valve pocket [13].