JPS58170982A - Magnetic valve - Google Patents

Abstract

PURPOSE:To have a magnetic valve with simple construction for low cost by equipping the valve body with a plunger consisting of a magnetic substance and by arranging a ring magnet, driven by a cam, at the outside circumference of a cylinder in which the plunger is inserted. CONSTITUTION:A plunger 7 consisting of a magnetic substance is mounted on the valve body 9 and connecting rod 8 solidly as in a single piece and inserted in a cylinder 4. A ring magnet 2, which consists of a permanent magnet and is driven by a cam 12, is arranged at the outside circumference of this cylinder 4. Accordingly the valve body 9 can be driven by the cam 12, so that no solenoid is required as in a solenoid operated valve, and valves can be manufactured regardless of the voltage specification as well as electrical circuits are simplified and the cost can be suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic valve used for opening and closing refrigerant flow in an air conditioner, particularly a multi-type air conditioner, and relates to a refrigerant flow opening and closing device provided in a refrigerant circuit. The purpose is to easily configure and operate the system without using electromagnetic coils.

Conventionally, in multi-type air conditioners in which multiple indoor units and units are connected to one outdoor unit, the operation of the multiple indoor units varies depending on whether they are operated simultaneously or independently. In order to cope with
Operating indoor unit is open, indoor unit is inactive, 1
・A solenoid valve is installed on each circuit to close it.

However, these solenoid valves open when the electromagnetic coil is energized and close when the electromagnetic coil is de-energized, so the electromagnetic coil needs to be energized to its rated value, and if the voltage specifications change, the specifications of the electromagnetic coil change. It also had drawbacks such as the need to change the

The present invention is intended to overcome the drawbacks of the prior art in two parts, and one embodiment thereof will be described below with reference to FIGS. 1 and 2. In the figure, 1 is a magnetic valve, 2 is a ring-shaped permanent magnet having a through hole 3, 4 is a cylindrical cylinder inserted into the through hole 3, and this cylinder 4 is: It is constructed integrally with the valve device section 5 through which the medium flows.

Reference numeral 6 is a suppression spring provided in a part of the cylinder 4 for constant suppression, and 7 is integrally constructed with a connecting rod 8 and a valve body 9 for opening and closing the flow path. Granger made of a moving magnetic material; reference numeral 10 denotes a handle for operation; 11ij is an operation shaft connected to a force cam body 12; the cam body 12 is composed of a body 13 and a cam part 14; By rotating the end portion 15, the ring magnet 2 is pushed upward. In the valve device, the medium inlet 16
The medium flows in from the flow path 18 due to the vertical movement of the valve body 9.
Depending on the opening and closing of , the water flows out to the outlet 17 or stops +h.

] In the two-part configuration, in order to operate the indoor unit, when the handle T=10 is rotated, the cam body 12 rotates, and by rotating, the cam part 14 suppresses the ring magnet 2. In the direction of pushing the spring 6, the ring magnet 2
I was pushed up by the force.

Press 1-. When the plunger 7 is turned upward, the magnetic force causes the plunger 7 to move upward as well, and the connecting rod 8 and valve body 9, which are integrated with the plunger 7, also rise, so that the flow path 18 is opened. Thus, the medium flows from the inlet 16 to the outlet 17.

Next, when stopping the indoor unit, by returning the 1111 rotation, the cam part 14 becomes horizontal, and the ring magnet 2
descends to the dotted line position. At the same time as the ring magnet 2 descends, the pusher 7 pressed by the pressure spring 6 descends, and the valve body 9 comes into contact with the flow path 18 and is always pressed by the pressure spring 6, stopping the flow of the medium. It will be done.

Next, another embodiment of the present invention will be described with reference to FIGS. 3 and 4. In the figure, 101 is a magnetic valve, 102 is a ring-shaped permanent magnet having a through hole 103 in the center, and 104 is a cylindrical 7 cylinder inserted into the through hole 103. is constructed integrally with the valve device section 106 through which the medium flows. 10
6 is constantly applied to the force in the cylinder 104, the plunger 1
The plunger 107 is provided to apply a pressing force to the top of the valve body 1.
The ring magnet 102 is made of a magnetic material integrally with the ring magnet 102.
It is attracted by the magnetic force due to the upward movement of , and also moves. 110 is the operation switch.

The main body of the rotary switch is provided with a lead wire (not shown) for operating each device (compressor, etc.) for connection. Reference numeral 111 denotes a handle for operation, which contacts a contact point in the rotary switch body 110 and is connected in series with the operation shaft 112 and the cup body 113. The cam body 113 is connected to the body 114. Cam part 116
By placing the end portion 116 at the − of the cam portion 115 and operating the handle, the ring magnet 102 is moved to −1.
I'm trying to push it up to one side. Therefore, the ON state when driving is pushed by the ring magnet 102 or the cam body 113, as shown by the solid line in FIG. 3, and the OFF state when stopping (Li, as shown by the dotted line in FIG. Cam body 11
The cam portion 115 of No. 3 rotates laterally, and the ring magnet 10
2 is F. In the valve device section 105, the medium input
The medium flowing in from 17 flows out to outlet 118 or is stopped by opening and closing valve body 109. 119 is the valve body 10
9 is a contact flow path that is opened and closed.

In the above configuration, when the handle 111 of the rotary switch 110 provided in the indoor unit is operated from OFF to ON, the operation shaft 112 and cam body 113 connected in series are also rotated while being interlocked with equipment such as a compressor. Then, the cam portion 115 pushes the ring magnet 102. When the ring magnet 102 is pushed up, the granger 10 is also pulled up by its magnetic force, and the valve body 109 that was closing the flow path 119 moves upward.
The flow path 119 is opened and the medium exits from the inlet 117 [11
It will be distributed on 18th. Next, when the indoor unit is stopped, that is, when the handle 111 is turned from ON to OFF, the compressor and other equipment are stopped by the rotary switch 110, the plunger 107 is also pulled down by the magnet, and at the same time the suppression spring is turned off. Due to the downward pressing force of 106, the valve body, 10
9 closes the flow path 119 and is constantly pressed by the suppression spring 106, and the flow of the medium ητ is stopped.

In this way, the present invention constructs a magnetic valve using a permanent magnet and a plunger pressing spring, and connects it to a cam body for moving a ring magnet made of permanent magnets or a rotary switch for operating an indoor unit, and compresses the valve. Since it is designed to interlock devices such as machines, it can be manufactured regardless of voltage specifications without worrying about electromagnetic coils like solenoid valves, and it also simplifies electrical circuits and reduces costs. It has the effect of being able to make a contribution.

[Brief explanation of the drawing]

FIG. 1 is a partial 41 diagram of a magnetic valve according to an embodiment of the present invention, FIG. 2 is a sectional view of the same magnetic valve, and FIG. 3 is a partial perspective view of a magnetic valve according to another embodiment of the present invention. FIG. 4 is a sectional view of the same. 2.102...Ring magnet, 4,104...
- Cylindrical cylinder, 6, 106... Pressing spring, 7107... Plano shear, 9', 10
9...Valve body, 12...Cam body, 11o...
...Rotary switch body (operation switch). Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
figure

Claims (2)

[Claims] (1) A cylindrical cylinder, a compression spring provided above the cylinder, a plunger made of a magnetic material that is constantly pressed by the compression spring, and a plunger that is integrated with the plunger to allow the flow of the medium. A valve body for opening and closing the passage, and a valve body for moving the plunger by magnetic force.
It has a ring magnet and a cam body for moving the ring magnet, and by moving the ring magnet with the cam body, a valve body and a plunger are moved to open and close the medium flow. A magnetic valve designed to (2) A cylindrical cylinder, a suppression spring provided above inside the cylinder, a plunger made of a magnetic material and constantly pressed by the suppression spring, and a plunger integrated with the plunger, It has a valve body that opens and closes a flow path, a ring magnet that moves the plunger by magnetic force, a cam body that moves this ring magnet, and an operation switch that is connected to and interlocks with this cam body. A magnetic valve.