JP2017187255A5

JP2017187255A5 -

Info

Publication number: JP2017187255A5
Application number: JP2016078220A
Authority: JP
Filing date: 2016-04-08
Publication date: 2018-07-19
Anticipated expiration: 2036-04-08

Description

上記課題を解決するために、本発明に係る統合弁装置は、冷凍サイクルを構成する貯液器（３６）の内部に配置される統合弁装置（６）であって、前記貯液器からコンプレッサ（３１）に流れる冷媒を通すコンプレッサ行き流路が形成されてなる弁本体（７）と、前記コンプレッサ行き流路を流れる冷媒の流量を調整する弁体（６３２）及び弁座（６３１）を有するコンプレッサ行き弁（６３）と、を備える。前記弁本体は、前記統合弁装置が前記貯液器の内部に配置される場合に、最も奥まで挿入される挿入端部（９０）を有し、前記コンプレッサ行き流路の入口（７４）は前記挿入端部に形成されており、前記弁本体には、前記貯液器よりも上流側に配置された第１熱交換器（３４）に前記コンプレッサから流れる冷媒を通す第１流路と、前記貯液器よりも下流側に配置された第２熱交換器（３５）から膨張弁（３７）に流れる冷媒を通す第２流路と、前記コンプレッサ行き流路としての第３流路と、が形成されており、前記第１流路を流れる冷媒の流量を調整する第１弁体（６２２）及び第１弁座（６２１）を有する第１弁（６２）と、前記第２流路を流れる冷媒の流量を調整する第２弁体（６４２）及び第２弁座（６４１）を有する第２弁（６４）と、前記第３流路を流れる冷媒の流量を調整する第３弁体（６３２）及び第３弁座（６３１）を有し前記コンプレッサ行き弁として機能する第３弁（６３）と、が設けられている。 In order to solve the above-mentioned problems, an integrated valve device according to the present invention is an integrated valve device (6) disposed inside a liquid reservoir (36) constituting a refrigeration cycle, and includes a compressor and a compressor. A valve body (7) formed with a flow path for the compressor through which the refrigerant flowing through (31) is passed, and a valve body (632) and a valve seat (631) for adjusting the flow rate of the refrigerant flowing through the flow path for the compressor. And a compressor valve (63). Said valve body when said integrated valve device is disposed inside the reservoir unit, possess most insertion end to be inserted all the way (90), an inlet of the compressor to go channel (74) A first flow path that is formed at the insertion end, and in the valve body, passes a refrigerant flowing from the compressor to a first heat exchanger (34) disposed upstream of the reservoir; A second flow path through which refrigerant flows from the second heat exchanger (35) disposed downstream of the reservoir to the expansion valve (37), a third flow path as the compressor flow path, And a first valve (62) having a first valve body (622) and a first valve seat (621) for adjusting the flow rate of the refrigerant flowing through the first flow path, and the second flow path. A second valve having a second valve body (642) and a second valve seat (641) for adjusting the flow rate of the flowing refrigerant ( 4), and a third valve (63) having a third valve body (632) and a third valve seat (631) for adjusting the flow rate of the refrigerant flowing through the third flow path and functioning as the compressor valve, Is provided .

Claims

An integrated valve device (6) disposed inside a liquid reservoir (36) constituting a refrigeration cycle,
A valve body (7) formed with a flow path for the compressor through which refrigerant flows from the reservoir to the compressor (31);
A compressor valve (63) having a valve body (632) and a valve seat (631) for adjusting the flow rate of the refrigerant flowing through the compressor flow path,
Said valve body when said integrated valve device is disposed inside the reservoir unit, possess most insertion end to be inserted all the way (90),
The inlet (74) of the flow path to the compressor is formed at the insertion end ,
The valve body has a first flow path through which the refrigerant flowing from the compressor passes through a first heat exchanger (34) arranged on the upstream side of the reservoir, and is arranged on the downstream side of the reservoir. A second flow path through which refrigerant flows from the second heat exchanger (35) to the expansion valve (37) and a third flow path as the compressor flow path are formed,
A first valve (62) having a first valve body (622) and a first valve seat (621) for adjusting the flow rate of the refrigerant flowing through the first flow path;
A second valve (64) having a second valve body (642) and a second valve seat (641) for adjusting the flow rate of the refrigerant flowing through the second flow path;
A third valve body (632) for adjusting the flow rate of the refrigerant flowing through the third flow path and a third valve (63) having a third valve seat (631) and functioning as the compressor valve. Integrated valve device.

The compressor valve is configured to close when the valve body approaches the inlet of the compressor flow path, and to open when the valve body moves away from the compressor flow path. The integrated valve device according to claim 1.

The valve main body is formed with a fourth flow path for passing a refrigerant flowing from the second heat exchanger to the compressor,
The flow rate of the fourth refrigerant flowing in the flow path is adjusted by the second valve, integrated valve apparatus according to claim 1.

The second valve has a fourth valve seat (643) provided on the opposite side of the second valve seat across the second valve body,
When the second valve body comes into contact with the fourth valve seat, the refrigerant flowing from the second heat exchanger flows toward the expansion valve, and when the second valve body comes into contact with the second valve seat. The integrated valve device according to claim 3 , wherein the refrigerant flowing from the second heat exchanger flows toward the compressor.

The first valve body, the second valve body, and the third valve body are driven by a rod (66) inserted into the valve body,
The integrated valve according to claim 4 , wherein an actuator (65) for driving the rod so as to advance and retract is provided adjacent to the valve body at an exposed end (91) opposite to the insertion end. apparatus.

A biasing member (633) for biasing the third valve body in a direction away from the third valve seat is provided;
The third valve body is configured to abut with the third valve seat by being pushed by the third valve seat side by the rod against the biasing force of the biasing member, according to claim 5 The integrated valve device as described.

When the rod is driven to push the third valve body toward the third valve seat, the rod moves the second valve body toward the fourth valve seat,
The integrated valve device according to claim 6 , wherein the movement causes a refrigerant to flow from the second heat exchanger toward the expansion valve to generate a differential pressure that causes the second valve body to move toward the fourth valve seat.

When the rod is driven to move the first valve body to the first valve seat side, the rod moves the second valve body to the second valve seat side,
The integrated valve device according to claim 6 , wherein the cross-sectional area of the fourth flow path is sufficiently larger than that of the second flow path by the movement.

When the second valve body moves to the second valve seat side, the pressure difference across the second valve body is smaller than when the second valve body abuts on the fourth valve seat. The integrated valve device according to claim 8 .

A seal member (706, 707) is provided on the outer periphery of the valve main body to ensure airtightness with the inside of the liquid reservoir from the insertion end side toward the exposed end opposite to the insertion end. , 708, 709, 710) are arranged,
A plurality of the sealing members sandwich at least the inlet (71) and the outlet (76) of the first channel, and sandwich the inlet (75) and the outlet (72) of the second channel. in a pair, it is provided, integrated valve apparatus according to claim 1.

On the outer periphery of the valve body, a plurality of step surfaces (7a, 7b, 7c, 7d, 7e) having steps are provided from the insertion end portion toward the exposed end portion. The integrated valve device according to claim 10 , wherein the integrated valve device is disposed on the different step surfaces.