JPH10170103A - Flow distributing pipe for air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a distributing pipe, capable of distributing refrigerant uniformly into an outdoor heat exchanger even upon the operation of one set, in a refrigerant distributing pipe, used in a multi-air conditioners and joining the refrigerant, distributed to two flows, and, thereafter, distributing the joined refrigerant into a plurality of flows. SOLUTION: A distributing pipe 1 is prepared by a method wherein an A-inflow pipeline 2, a B-inflow pipeline 3, an A-outflow pipeline 4 and a B-outflow pipeline 5 are inserted into the distributing pipe 1 in the same plane including the axis of the distributing pipe 1 axially so that the pipes are apart from each other to both ends of the radial direction of the distributing pipe 1 to braze them, then, the distributing pipe 1 is provided with a configuration by press work so as to be sealed tightly, further, the central part of the distributing pipe 1 is pressed through press work as a choking mechanism 6. In such a constitution, when refrigerant does not flow through the A-inflow pipeline 2, the flow direction of the refrigerant, which flows from the B-inflow pipeline 3 into the distributing pipe 1, is changed as shown by an arrow sign by the choking mechanism 6 whereby the flow of refrigerant is disturbed in a space before the choking mechanism 6 and the flow of refrigerant is joined by the choking mechanism 6 thereby obtaining the distributing pipe, capable of distributing the refrigerant into the A-outflow pipeline 4 and the B-outflow pipeline 5 stably and uniformly substantially.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for dividing a refrigerant used in an air conditioner.

[0002]

2. Description of the Related Art Conventionally, this type of branch pipe has an A pipe 101, a B pipe 102, a C pipe 103,
The both ends of the copper pipe are pressed so that the D pipe 104 can be inserted in the axial direction while being separated from the both ends in the radial direction on the same plane including the axis of the branch pipe 105, so that the copper pipe has a shape leaving a bulge at the junction. Then, as shown in FIG.
06, in the refrigeration cycle of the two-room multi air conditioner including the outdoor heat exchanger 107, the A electromagnetic expansion valve 108, the B electromagnetic expansion valve 109, the A indoor unit 110, the B indoor unit 111, and the four-way valve 112, the A pipe 101 is connected to the A electromagnetic Expansion valve 108 and B pipe 102 are connected to B electromagnetic expansion valve 109, C pipe 103 and D pipe 1
04 to the outdoor heat exchanger 107,
The distribution pipe 105 is installed vertically with the 01 and the B pipe 102 side down. As a result, the refrigerant compressed by the compressor 106 is supplied to the A indoor unit 110 and the B indoor unit 111 by the four-way valve 112.
To be condensed and decompressed by the A electromagnetic expansion valve 108 and the B electromagnetic expansion valve 109, respectively.
, And after merging with the branch pipe 105, the C pipe 103 and D
It is diverted to the pipe 104 and evaporated in the outdoor heat exchanger 107,
The known refrigeration cycle returns to the compressor 106.

[0003]

In such a conventional branch pipe, when one unit is operated, for example, when the indoor unit A is stopped and the indoor unit B is operated, the electromagnetic expansion valve A is closed and the refrigerant is connected to the piping A. Does not flow. The refrigerant flowing from the pipe B into the flow divider expands at the junction, and a part of the refrigerant flows out of the pipe C. However, most of the refrigerant flows to the pipe D along the flow in the inflow direction. Accordingly, there is a problem that the performance of the outdoor heat exchanger is deteriorated because the refrigerant is not uniformly divided, and it is required to distribute the refrigerant evenly even when one unit is operated.

An object of the present invention is to solve such a conventional problem, and it is an object of the present invention to provide a flow dividing pipe capable of uniformly distributing a refrigerant even during operation of a single unit.

[0005]

According to a first aspect of the present invention, there is provided a flow dividing pipe which is provided on a side of an inflow pipe of the distribution pipe in a radial direction on a plane including an axis of the distribution pipe. Insert two inflow pipes at both ends in the axial direction, and on the outflow pipe side, insert a plurality of outflow pipes at equal intervals from both ends in the radial direction on the same plane as the two inflow pipes. And a shape having a throttle mechanism at a refrigerant converging portion of the branch pipe.

[0006] A second means for achieving the above object of the present invention is to provide, on the inflow pipe side of the diversion pipe, two pipes on the plane including the axis of the diversion pipe. The inflow pipe is inserted so as to be in contact with the axial direction, and a plurality of outflow pipes are inserted into the outflow pipe side on the same plane as the two inflow pipes so as to be in contact with each other around the shaft.

[0007] A third means for achieving the above object of the present invention is a two-way flow control device, comprising: a flow pipe having two inflow pipes on the inflow pipe side of the flowpipe on a plane including the axis of the flowpipe. The inflow pipe is inserted so as to be in contact with the axial direction, and on the outflow pipe side, a plurality of outflow pipes are inserted so as to be in contact with the two inflow pipes in the axial direction on the same plane as the two inflow pipes. The diaphragm mechanism is provided near the center in the axial direction.

A fourth means for attaining the above object of the present invention is a diverting pipe, wherein an inflow pipe side of the diverting pipe has its axis centered on a plane having an arbitrary angle with respect to the axis of the diverting pipe. The two inflow pipes are inserted so as to be in contact with each other in the axial direction, and a plurality of outflow pipes are inserted into the outflow pipe side so as to be in contact with each other in the axial direction on a plane parallel to the two inflow pipes. The inflow pipe and the outflow pipe are inserted so as to be overlapped inside the diversion pipe.

A fifth means for achieving the above object of the present invention is that two pipes are provided at both ends in the radial direction on a plane including the axis of the above-mentioned branch pipe on the inflow pipe side of the branch pipe. The inflow pipe is inserted in the axial direction, and on the outflow pipe side, the insertion plane of the two inflow pipes is rotated 90 degrees around the axis of the branch pipe at equal intervals from both ends in the radial direction. A plurality of outflow pipes are inserted into the pipe.

A sixth means for achieving the above object of the present invention is a two-stage flow pipe having two inlets on a plane including the axis of the split pipe on the inflow pipe side of the flow pipe. The pipes are inserted so as to be in contact with each other in the axial direction. On the outflow pipe side, a plurality of outflow pipes around the axis are formed on a plane obtained by rotating the insertion plane of the two inflow pipes by 90 degrees about the axis of the branch pipe. The pipes are arranged so as to be in contact with each other and inserted in the axial direction.

[0011] A seventh means for achieving the above object of the present invention is to provide a flow pipe with two inflow pipes on the inflow pipe side of the flow pipe on the plane including the axis of the flow pipe. The inflow pipe is inserted so as to be in contact with the axial direction, and on the outflow pipe side, the insertion plane of the two inflow pipes is rotated by 90 degrees around the axis of the branch pipe, and a plurality of The outflow pipes are arranged so as to be in contact with each other, inserted in the axial direction, and have a shape having a throttle mechanism in the vicinity of the axial center of the branch pipe.

An eighth means for achieving the above-mentioned object of the present invention is directed to a flow pipe in which two pipes are provided on the inflow pipe side of the flow pipe on the plane including the axis of the flow pipe. The inflow pipe is inserted so as to be in contact with the axial direction, and on the outflow pipe side, the insertion plane of the two inflow pipes is rotated by 90 degrees around the axis of the branch pipe, and a plurality of In this mechanism, the outflow pipes are arranged so as to be in contact with each other and inserted in the axial direction, and the inflow pipe and the outflow pipe are inserted into the branch pipe body so as to overlap with each other.

A ninth means for achieving the above object of the present invention is a diverting pipe, wherein two diametrically extending pipes are provided at both ends in the radial direction on a plane including the axis of the diverting pipe. Outflow pipes were inserted in the axial direction, and on the inflow pipe side, a plurality of inflow pipes were inserted on the same plane as the two outflow pipes toward the middle of the respective inlets of the two outflow pipes. Things.

[0014] A tenth means for achieving the above object of the branch pipe according to the present invention is that, on the inflow pipe side of the branch pipe, two radially perpendicular ends are provided at radial ends of the branch pipe. The inflow pipes are arranged so as to be in contact with each other, and are inserted in the axial direction.On the outflow pipe side, a plurality of outflow pipes are arranged so as to be in contact with a plurality of outflow pipes in the radial direction at the radial end opposite to the inflow pipe. It has been inserted.

[0015] An eleventh means for achieving the above object of the present invention is a diverting pipe having two radially perpendicular ends at the radial end of the diverting pipe on the inflow pipe side of the diverting pipe. The inflow pipes are arranged so as to be in contact with each other, and are inserted in the axial direction.On the outflow pipe side, a plurality of outflow pipes are arranged so as to be in contact with a plurality of outflow pipes in the radial direction at the radial end opposite to the inflow pipe. It is a mechanism that inserts and separates the inflow pipe side and the outflow pipe side by a throttle mechanism.

A twelfth means for achieving the above object of the present invention is a diverting pipe comprising: two diametrically extending pipes on the inflow pipe side of the diverting pipe at a radial end of the diverting pipe. The inflow pipes are arranged so as to be in contact with each other, and are inserted in the axial direction.On the outflow pipe side, a plurality of outflow pipes are arranged so as to be in contact with a plurality of outflow pipes in the radial direction at the radial end opposite to the inflow pipe. This is a mechanism in which the inflow pipe and the outflow pipe are inserted into the branch pipe body so as to overlap with each other.

A thirteenth means for achieving the above object of the present invention is a diverting pipe having two radially perpendicular ends at the radial end of the diverting pipe on the inflow pipe side of the diverting pipe. The inflow pipes are arranged so as to be in contact with each other, and are inserted in the axial direction. On the outflow pipe side, a plurality of outflow pipes are arranged so as to be in contact with a plurality of outflow pipes in the radial direction at the radial end opposite to the inflow pipe. And the inflow pipe side and the outflow pipe side are separated by a throttle mechanism, so that the inflow pipe and the outflow pipe are inserted into the branch pipe body so as to overlap.

A fourteenth means for achieving the object of the present invention is to insert two inflow pipes at both ends in the radial direction on a plane including the axis of the diversion pipe in the axial direction, A plurality of outflow pipes are those in which the insertion plane of the two inflow pipes is inserted from the same direction as the inflow pipes at equal intervals from both ends in the radial direction on a plane rotated 90 degrees around the axis of the branch pipe. is there.

According to a fifteenth means for achieving the above object of the present invention, two inflow pipes are inserted so as to be in contact with each other in the axial direction on a plane including the axis of the diversion pipe. Then, the outflow pipes are inserted so that the insertion planes of the two inflow pipes are respectively in contact with the two inflow pipes from the same direction as the inflow pipes on a plane rotated by 90 degrees around the axis of the branch pipe. It was done.

As described above, according to the present invention, it is possible to obtain a flow dividing pipe capable of uniformly distributing the refrigerant even when one vehicle is operating.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a branch pipe, in which a refrigerant branched into two flows is merged and then branched into a plurality of branches, wherein the inlet pipe side of the branch pipe has a diameter on a plane including the axis of the branch pipe. The two inflow pipes are inserted at both ends in the axial direction and brazed by inserting them in the axial direction, so that the outflow pipe side is flush with the two inflow pipes, from both ends in the radial direction, etc. A plurality of outflow pipes are inserted in the axial direction at intervals and brazed by inserting them into a shape that can be hermetically sealed, and further have a shape having a throttle mechanism at the refrigerant junction of the branch pipe, and two Not only the state in which the refrigerant flows through both the inflow pipes, but also the state in which the refrigerant in either one of the two inflow pipes does not flow, the flow direction of the refrigerant flowing into the flow divider is changed by the throttle mechanism. And expands in the space between the throttle mechanism and the inflow section. To. And the refrigerant | coolant gathered in the said throttle mechanism part has the effect | action that it disperse | distributes in the space from the said throttle mechanism part to the inlet of the said outflow pipe, and is distributed substantially equally to each said outflow pipe.

Also, in the branch pipe which combines the refrigerants branched into two and then branches into a plurality of parts, the inflow pipe side of the branch pipe is divided into two parts around the axis on a plane including the axis of the branch pipe. Attaching the inflow pipe, inserting it in the axial direction and brazing it, making it into a shape that can be sealed, and attaching the outflow pipe side to the same plane as the two inflow pipes and attaching a plurality of outflow pipes around the axis. It is a shape that can be inserted and brazed in the direction, so that it can be hermetically sealed, and not only the state where the refrigerant flows through both of the two inflow pipes, but also the refrigerant of either one of the two inflow pipes Even in a state where it does not flow, the refrigerant flowing into the flow divider is dispersed in the space inside the flow dividing tube,
Since each of the outflow pipes is close to each other, the outflow pipes have an effect of being substantially evenly distributed.

Also, in the branch pipe which joins the refrigerants branched into two and then branches into a plurality of parts, the inflow pipe side of the branch pipe is divided into two parts around the axis on a plane including the axis of the branch pipe. Attaching the inflow pipe, inserting it in the axial direction and brazing it, making it into a shape that can be sealed, and attaching the outflow pipe side to the same plane as the two inflow pipes and attaching a plurality of outflow pipes around the axis. Insert it in the direction and braze it into a shape that can be sealed,
It is a shape having a throttle mechanism in the vicinity of the central portion in the axial direction of the branch pipe, and the refrigerant flows into both of the two inflow pipes, as well as one of the two inflow pipes. Even when the flow does not flow, the direction of the flow of the refrigerant flowing into the flow divider is changed by the throttle mechanism, and is diffused in the space between the throttle mechanism and the inflow portion. The refrigerant collected in the throttle mechanism is dispersed in the space from the throttle mechanism to the inlet of the outlet pipe, and the outlet pipes are close to each other, so that the refrigerant is almost uniformly distributed. Having.

Further, in a branch pipe which joins the refrigerants branched into two and then branches into a plurality, the inflow pipe side of the branch pipe is centered on a plane having an arbitrary angle with respect to the axis of the branch pipe. The two inflow pipes are attached to each other, inserted in the axial direction, brazed, and shaped so as to be hermetically sealed, and the outflow pipe side is provided with a plurality of outflows around a shaft in a plane parallel to the two inflow pipes. A pipe is attached, inserted in the axial direction, brazed, and sealed so that the inflow pipe and the outflow pipe are inserted into the branch pipe body so as to overlap with each other. The refrigerant flowing into the flow splitter rebounds against the inner wall of the flow splitter even in a state where the refrigerant does not flow in either one of the two flow-in pipes, as well as in a state where the refrigerant flows through both the flow-in pipes. Space inside the shunt With spreading, to each of said outlet pipe is close, an effect that is substantially evenly distributed.

[0025] In the branch pipe, in which the two divided refrigerants are combined and then branched into a plurality of branches, two inflow pipe sides of the branch pipe are provided at both ends in the radial direction on a plane including the axis of the branch pipe. The inflow pipe is inserted in the axial direction, brazed and shaped so that it can be hermetically sealed, and the outflow pipe side is placed on a plane obtained by rotating the insertion plane of the two inflow pipes by 90 degrees about the axis of the branch pipe. A plurality of outflow pipes are inserted and brazed at equal intervals from both ends in the radial direction, and are shaped so that they can be hermetically sealed.The state in which the refrigerant flows through both of the two inflow pipes is, of course, Even in a state where the refrigerant in either one of the two inflow pipes does not flow, since the distance and the path from each of the inflow pipes to each of the outflow pipes are the same, the refrigerant is not biased inside the flow splitter. To separate each outflow pipe URN has the effect of being distributed evenly.

Also, in a branch pipe which merges the refrigerants branched into two and then branches into a plurality of parts, the inflow pipe side of the branch pipe is divided into two pipes centered on the axis including the axis of the branch pipe. The inlet pipe is attached and inserted in the axial direction, brazed and sealed, and the outlet pipe side is placed on a plane obtained by rotating the insertion plane of the two inlet pipes by 90 degrees about the axis of the branch pipe. so,
A plurality of outflow pipes are attached around the shaft, inserted in the axial direction, brazed and shaped so that they can be hermetically sealed. Not only the state in which the refrigerant flows through both of the two inflow pipes, Even in a state where either one of the refrigerants of the inflow pipe does not flow, since the distances and routes from the respective inflow pipes to the respective outflow pipes are the same, the refrigerant is not biased inside the flow splitter without bias. In addition to being dispersed in space, the outlet pipes are close to each other, so that they have an effect of being substantially evenly distributed.

[0027] In the diversion pipe which joins the two divided refrigerants and then diverts the refrigerant into two or more parts, the inflow pipe side of the diversion pipe is placed on two planes on the plane including the axis of the diversion pipe. The inlet pipe is attached and inserted in the axial direction, brazed and sealed, and the outlet pipe side is placed on a plane obtained by rotating the insertion plane of the two inlet pipes by 90 degrees about the axis of the branch pipe. so,
A plurality of outflow pipes are attached around the shaft, inserted in the axial direction, brazed, and shaped so that they can be sealed and have a throttle mechanism near the axial center of the diversion pipe. The state in which the refrigerant flows through both of the inflow pipes, as well as the state in which the refrigerant in either one of the two inflow pipes does not flow, the distance from each of the inflow pipes to each of the outflow pipes, Since the paths are the same and the flow of the refrigerant is gathered by the throttle mechanism, the refrigerant is dispersed in the space inside the flow divider without being biased, and the outlet pipes are close to each other, so that the outlet pipes are close to each other. Has the effect of being distributed to

Also, in the branch pipe which combines the refrigerant divided into two and then branches into a plurality of parts, the inflow pipe side of the branch pipe is divided into two pipes centered on a plane including the axis of the branch pipe. The inlet pipe is attached and inserted in the axial direction, brazed and sealed, and the outlet pipe side is placed on a plane obtained by rotating the insertion plane of the two inlet pipes by 90 degrees about the axis of the branch pipe. so,
A structure in which a plurality of outflow pipes are attached around the shaft, inserted in the axial direction, brazed, and shaped so that they can be sealed, and the inflow pipe and the outflow pipe are inserted in the branch pipe body so that they overlap. In addition to the state in which the refrigerant flows through both of the two inflow pipes, even in the state in which either one of the two inflow pipes does not flow, the respective outflow pipes from the respective inflow pipes The distance and the path to the flow path are the same, and the inflowing refrigerant hits the inner wall of the flow dividing pipe and rebounds, and the diffusion in the space inside the flow dividing device is promoted. And the outlet pipes are close to each other, so that they are distributed substantially evenly.

Also, in a branch pipe which joins the refrigerants branched into a plurality of streams and then branches them into two, two outflow pipe sides of the branch pipe are provided at both ends in the radial direction on a plane including the axis of the branch pipe. The outflow pipes are inserted in the axial direction, brazed and sealed so that the inflow pipe side has a plurality of inflow pipes on the same plane as the two outflow pipes. It is shaped so that it can be inserted and brazed toward the middle of the inlet of the inlet, so that the refrigerant can flow through all of the plurality of inflow pipes, as well as any of the plurality of inflow pipes. Even in the state where the refrigerant flows,
Since the direction in which the refrigerant flows from all of the inflow pipes flows toward the space between the two outflow pipes, the refrigerant is distributed substantially equally to each of the outflow pipes.

[0030] In the branch pipe, in which the two divided refrigerants are combined and then divided into a plurality of branches, the inflow pipe side of the branch pipe is connected to the radial end of the branch pipe by two in the radial vertical direction. The inflow pipes are arranged side by side, inserted in the axial direction, brazed and shaped so that they can be sealed, and the outflow pipe side is provided with a plurality of pipes in the vertical direction in the radial direction at a radial end opposite to the inflow pipe. Attached to the outflow pipes, inserted in the axial direction and brazed, it is shaped so that it can be sealed, let alone the state where the refrigerant flows through both of the two inflow pipes,
Even in a state where the refrigerant of either one of the two inflow pipes does not flow, the refrigerant flowing into the branch pipe is diffused while gently meandering, and each of the outflow pipes is close to each other, It has the effect of being distributed almost evenly.

Also, in a branch pipe which joins the refrigerant branched into two and then branches into a plurality of parts, two inflow pipe sides of the branch pipe are vertically connected to the radial end of the branch pipe in the radial direction. The inflow pipes are arranged side by side, inserted in the axial direction, brazed and shaped so that they can be sealed, and the outflow pipe side is provided with a plurality of pipes in the vertical direction in the radial direction at a radial end opposite to the inflow pipe. Outlet pipes are arranged side by side, inserted in the axial direction, brazed, and shaped so that they can be sealed, and a mechanism that partitions the inflow side and the outflow side with a throttle mechanism is used. Of course, the refrigerant flowing into the branch pipe diffuses in the space up to the throttle mechanism section even when the refrigerant in one of the two inflow pipes does not flow, and the throttle mechanism The refrigerant collected in the section Is shunted to the pipe, by each said outflow pipes are close, an effect that is substantially evenly distributed.

Further, in a branch pipe which joins the two branched refrigerants and then branches into a plurality of branches, the inflow pipe side of the branch pipe is connected to two ends of the branch pipe in the radial vertical direction in the radial direction. The inflow pipes are arranged side by side, inserted in the axial direction, brazed and shaped so that they can be sealed, and the outflow pipe side is provided with a plurality of pipes in the vertical direction in the radial direction at a radial end opposite to the inflow pipe. Outflow pipes are arranged side by side, inserted in the axial direction, brazed and sealed so that the inlet pipe and the outlet pipe are inserted in the branch pipe body so as to overlap. In addition to the state where the refrigerant flows through both of the two inflow pipes, even in the state where either one of the two inflow pipes does not flow, the refrigerant that has flowed into the inside of the branch pipe is an inner wall of the branch pipe. Bounces off inside the shunt For diffusion between it is promoted, as well as dispersed by the flow divider inside the space without refrigerant biased, for each said outlet pipe are close, an effect that is substantially evenly distributed.

[0033] In the branch pipe, in which the two branched refrigerants are merged and then divided into a plurality of branches, the inflow pipe side of the branch pipe is connected to two radially perpendicular ends of the branch pipe. The inflow pipes are arranged side by side, inserted in the axial direction, brazed, and shaped so as to be able to be sealed, and the outflow pipe side is provided with a plurality of pipes in the vertical direction in the radial direction at a radial end opposite to the inflow pipe. Outlet pipes are lined up, inserted in the axial direction, brazed and sealed so that the inlet and outlet sides are separated by a throttle mechanism.The inlet pipe and the outlet pipe are inserted in the branch pipe body so that they overlap. It is a mechanism that has been
In the state where the refrigerant flows into both of the two inflow pipes, as well as in the state where either one of the two inflow pipes does not flow, the refrigerant flowing into the inside of the branch pipe is In order to promote the diffusion in the space on the inflow pipe side partitioned by the throttle mechanism by hitting against the inner wall, the refrigerant flows into the space on the outflow pipe side partitioned by the throttle mechanism without bias, and flows into each of the outflow pipes. Diverted,
Since each of the outflow pipes is close to each other, the outflow pipes have an effect of being substantially evenly distributed.

Also, in a diversion pipe that joins the refrigerants that have been split into two and then diverts them into a plurality, two inflow pipes are inserted axially at both ends in the radial direction on a plane including the axis of the diversion pipe. A plurality of outflow pipes are inserted from the same direction as the inflow pipes at equal intervals from both ends in the radial direction on a plane rotated by 90 degrees around the axis of the branch pipe, the insertion plane of the two inflow pipes. In the state where the refrigerant flows into both of the two inflow pipes, as well as the state where the refrigerant does not flow in either of the two inflow pipes, it is a shape that can be sealed and brazed. Also, since the distance and the path from each of the inflow pipes to each of the outflow pipes are similar, the refrigerant is distributed in the space inside the flow divider without being biased and distributed almost equally to each of the outflow pipes. It has the action of:

Further, in a diversion pipe which joins the refrigerant divided into two and then diverts the refrigerant into two, two inflow pipes are attached around the axis on a plane including the axis of the diversion pipe, and the two pipes are attached in the axial direction. Insert and insert the outflow pipes into the two inflow pipes from the same direction as the inflow pipes, respectively, on the plane rotated 90 degrees about the axis of the diversion pipes with the insertion plane of the two inflow pipes Then, the shape is such that it can be brazed and hermetically sealed, and not only the state in which the refrigerant flows through both of the two inflow pipes, but also the state in which either one of the two inflow pipes does not flow. Even in the state, since the distance and the path from each of the inflow pipes to each of the outflow pipes are similar, the refrigerant is dispersed in the space inside the flow divider without bias, and each of the outflow pipes approaches Almost evenly distributed It has the effect that is.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0037]

【Example】

(Embodiment 1) As shown in FIG. 1, the distribution pipe 1 is formed such that the A inflow pipe 2 and the B inflow pipe 3, the A outflow pipe 4 and the B outflow pipe 5 each have a diameter on the same plane including the axis of the distribution pipe 1. Inserted in the axial direction, separated at both ends in the direction, brazed, pressed into a shape that can be hermetically sealed, and further formed as a throttle mechanism 6 near the center of the diversion tube 1 by pressing both ends.

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the flow direction of the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 is changed by the throttle mechanism 6 as shown by an arrow. Since the flow of the refrigerant is disturbed in the space before six, and the refrigerant is collected by the throttle mechanism 6, the refrigerant can be stably and almost uniformly divided into the A outflow pipe 4 and the B outflow pipe 5.

(Embodiment 2) As shown in FIG.
The A inflow pipe 2 and the B inflow pipe 3 and the A outflow pipe 4 and the B outflow pipe 5 are inserted in the axial direction on the same plane including the axis of the branch pipe 1 with two inflow pipes attached around the axis. And brazed and press-formed so that it can be sealed.

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 expands in the space inside the branch pipe 1 as shown by the arrow, and A
Since the outflow pipe 4 and the B outflow pipe 5 are close to each other, they can be divided almost uniformly.

(Embodiment 3) As shown in FIG.
The A inflow pipe 2 and the B inflow pipe 3 and the A outflow pipe 4 and the B outflow pipe 5 are inserted in the axial direction on the same plane including the axis of the branch pipe 1 with two inflow pipes attached around the axis. The flow dividing pipe 1 is press-formed so that it can be hermetically sealed, and further has a throttle mechanism 6 near the axial center of the flow dividing pipe 1.

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the flow direction of the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 is changed by the throttle mechanism 6 as shown by an arrow. Since the flow of the refrigerant is disturbed in the space before six, the refrigerant is gathered by the throttle mechanism 6, and the A outflow pipe 4 and the B outflow pipe 5 are close to each other, so that the A outflow pipe 4 and the B outflow are stable. The flow can be almost uniformly divided into the pipe 5.

(Embodiment 4) As shown in FIG.
The A inflow pipe 2 and the B inflow pipe 3 are attached around the axis on a plane having an angle of about 10 degrees with respect to the axis of the flow dividing pipe 1 so that the inflow pipe side can be axially inserted, brazed and sealed. The outflow pipe side is a plane parallel to the A inflow pipe 2 and the B inflow pipe 3, and the A outflow pipe 4 and the B outflow pipe 5 are centered on the axis.
A is inserted in the axial direction and brazed to form a shape that can be hermetically sealed.
And the A outflow pipe 4 and the B outflow pipe 5 are inserted so as to overlap each other.

In the above configuration, when the refrigerant does not flow through the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 hits the inner wall of the branch pipe 1 as shown by the arrow, changing the flow direction by 360 °, and The flow becomes a turbulent flow that passes through an appropriate path, and the close flow between the A outflow pipe 4 and the B outflow pipe 5 allows the flow to be almost equally divided into the A outflow pipe 4 and the B outflow pipe 5.

(Embodiment 5) As shown in FIG.
The inflow pipe side is formed so that the A inflow pipe 2 and the B inflow pipe 3 can be axially inserted at both ends in the radial direction on a plane including the axis of the branch pipe 1 and brazed and sealed. And A
Insert the B inflow pipe 3 and the A outflow pipe 4 at equal intervals from both ends in the radial direction on a plane where the insertion plane of the inflow pipe 2 and the B inflow pipe 3 is rotated by 90 degrees about the axis of the diverter pipe 1. It is attached and pressed into a shape that can be sealed.

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 flows from the B inflow pipe 3 to the A outflow pipe 4 as shown by the arrow.
And the B outflow pipe 5 have the same positional relationship under the same conditions, so that the flow can be almost equally distributed to the A outflow pipe 4 and the B outflow pipe 5.

(Embodiment 6) As shown in FIG.
On the plane including the axis of the diversion pipe 1, attach the A inflow pipe 2 and the B inflow pipe 3 around the axis, insert in the axial direction, braze and seal the outflow pipe side. Side
The insertion plane of the A inflow pipe 2 and the B inflow pipe 3 is inserted and brazed by attaching the B inflow pipe 3 and the A outflow pipe 4 around the axis on a plane rotated 90 degrees about the axis of the branch pipe 1. Press into a shape that can be sealed.

In the above configuration, when the refrigerant does not flow through the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 is moved from the B inflow pipe to the A outflow pipe 4 and the B outflow pipe 5 as shown by the arrows. Since the positional relationship under the same condition is satisfied, the flow is divided almost evenly, and further, since the A outflow pipe 4 and the B outflow pipe 5 are close to each other, the flow can be more evenly divided.

(Embodiment 7) As shown in FIG.
On the plane including the axis of the diversion pipe 1, attach the A inflow pipe 2 and the B inflow pipe 3 around the axis, insert in the axial direction, braze and seal the outflow pipe side. Side
The insertion plane of the A inflow pipe 2 and the B inflow pipe 3 is inserted and brazed by attaching the B inflow pipe 3 and the A outflow pipe 4 around the axis on a plane rotated 90 degrees about the axis of the branch pipe 1. It is pressed into a shape that can be hermetically sealed, and further has a throttle mechanism 6 near the axial center of the flow dividing tube 1.

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 is corrected in the flow direction by the throttle mechanism 6 as shown by the arrow, and The A outflow pipe 4 and the B outflow pipe 5 have a positional relationship under the same condition, so that the flow is divided almost evenly, and further, since the A outflow pipe 4 and the B outflow pipe 5 are close to each other, the flow is more evenly divided. it can.

(Embodiment 8) As shown in FIG.
On the plane including the axis of the diversion pipe 1, attach the A inflow pipe 2 and the B inflow pipe 3 around the axis, insert in the axial direction, braze and seal the outflow pipe side. Side
The insertion plane of the A inflow pipe 2 and the B inflow pipe 3 is inserted and brazed by attaching the B inflow pipe 3 and the A outflow pipe 4 around the axis on a plane rotated 90 degrees about the axis of the branch pipe 1. Pressing into a shape that can be hermetically sealed, and a mechanism in which the A inflow pipe 2, the B inflow pipe 3, the A outflow pipe 4, and the B outflow pipe 5 are inserted into the branch pipe 1 so as to overlap.

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 hits the inner wall of the branch pipe 1 as shown by the arrow and changes the flow direction by 360 °. The flow becomes a turbulent flow that passes through an appropriate path, and the close flow between the A outflow pipe 4 and the B outflow pipe 5 allows the flow to be almost equally divided into the A outflow pipe 4 and the B outflow pipe 5.

(Embodiment 9) As shown in FIG.
The A outflow pipe 4 and the B outflow pipe 5 are axially inserted and brazed at both ends in the radial direction on a plane including the axis of the flow dividing pipe 1 so that the outflow pipe side can be hermetically sealed. Side
The A inflow pipe 2 and the B inflow pipe 3 are inserted on the same plane as the A outflow pipe 4 and the B outflow pipe 5 toward the middle of the respective inlets of the A outflow pipe 4 and the B outflow pipe 5, and brazed. Pressed into a shape that allows it.

In the above configuration, when the refrigerant does not flow through the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 flows between the A outflow pipe 4 and the B outflow pipe 5 as shown by the arrow. Since it flows, it can be almost equally divided into the A outflow pipe 4 and the B outflow pipe 5.

(Embodiment 10) As shown in FIG. 10, the A-inflow pipe 2 and the B-inflow pipe 3 are attached to the inflow pipe side of the diversion pipe 1 at the radial end of the diversion pipe 1 in the radial direction. The outflow pipe side is placed at the radial end opposite to the A inflow pipe 2 and the B inflow pipe 3 so that the A outflow pipe is radially perpendicular to the A outflow pipe 2 and B inflow pipe 3. Piping 4 and B
Outflow pipes 5 are attached and arranged, inserted in the axial direction, brazed, and pressed into a shape that can be hermetically sealed.

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 diffuses while gently meandering in the space inside the branch pipe 1 as shown by the arrow. In addition, since the A outflow pipe 4 and the B outflow pipe 5 are close to each other, the flow can be divided almost uniformly.

(Embodiment 11) As shown in FIG. 11, the inflow pipe side of the distribution pipe 1 is attached to the radial end of the distribution pipe 1 with the A inflow pipe 2 and the B inflow pipe 3 in the vertical direction in the radial direction. The outflow pipe side is placed at the radial end opposite to the A inflow pipe 2 and the B inflow pipe 3 so that the A outflow pipe is radially perpendicular to the A outflow pipe 2 and B inflow pipe 3. Piping 4 and B
The outflow pipes 5 are arranged side by side, inserted in the axial direction, brazed, pressed into a shape that can be hermetically sealed, and the vicinity of the axial center of the flow dividing pipe 1 is throttled by the throttle mechanism 6 using the inflow side space and the outflow side space. Is shaped like a slit.

In the above configuration, when the refrigerant does not flow through the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the flow dividing pipe 1 flows into the flow dividing pipe 1 as shown by the arrow. The refrigerant diffused in the space and collected by the throttle mechanism 6 is diverted to the A outflow pipe 4 and the B outflow pipe 5, and the refrigerant is almost equally distributed due to the close proximity of the A outflow pipe 4 and the B outflow pipe 5. Can be.

(Embodiment 12) As shown in FIG. 12, the A-inflow pipe 2 and the B-inflow pipe 3 are attached to the inflow pipe side of the diversion pipe 1 at the radial end of the diversion pipe 1 in the radial direction. The outflow pipe side is placed at the radial end opposite to the A inflow pipe 2 and the B inflow pipe 3 so that the A outflow pipe is radially perpendicular to the A outflow pipe 2 and B inflow pipe 3. Piping 4 and B
A mechanism in which the outflow pipes 5 are arranged, inserted in the axial direction, brazed and pressed into a shape that can be hermetically sealed, and the inflow pipe and the outflow pipe are inserted into the branch pipe body so as to overlap. .

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the diversion pipe 1 hits the inner wall of the diversion pipe 1 as shown by the arrow and changes the flow direction by 360 °. The flow becomes a turbulent flow that passes through an appropriate path, and the close flow between the A outflow pipe 4 and the B outflow pipe 5 allows the flow to be almost equally divided into the A outflow pipe 4 and the B outflow pipe 5.

Embodiment 13 As shown in FIG. 13, the inflow pipe side of the distribution pipe 1 is attached to the radial end of the distribution pipe 1 with the A inflow pipe 2 and the B inflow pipe 3 in the vertical direction in the radial direction. The outflow pipe side is placed at the radial end opposite to the A inflow pipe 2 and the B inflow pipe 3 so that the A outflow pipe is radially perpendicular to the A outflow pipe 2 and B inflow pipe 3. Piping 4 and B
The outflow pipes 5 are arranged side by side, inserted in the axial direction, brazed, pressed into a shape that can be hermetically sealed, and the vicinity of the axial center of the flow dividing pipe 1 is throttled by the throttle mechanism 6 using the inflow side space and the outflow side space. In a slit shape, and the inflow pipe and the outflow pipe are inserted in the main body of the diversion pipe so as to overlap each other.

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 is the refrigerant flowing into the branch pipe 1 as shown by the arrow, In the space, it hits the inner wall of the diversion pipe 1 and changes the flow direction by 360 °, disperses as a turbulent flow passing through various paths, and is diffused.
And the B outflow pipe 5, and the A outflow pipe 4 and the B outflow pipe 5 are close to each other, so that the flow can be almost uniformly split.

(Embodiment 14) As shown in FIG. 14, the A inflow pipe 2 and the B inflow pipe 3 are inserted axially at both ends in the radial direction on a plane including the axis of the branch pipe 1, and the A outflow pipe 4 And the B outflow pipe 5, the insertion plane of the A inflow pipe 2 and the B inflow pipe 3, and the A inflow pipe 2 and the B inflow pipe 3 at both ends in the radial direction on a plane rotated by 90 degrees about the axis of the branch pipe 1. Insert from the same direction,
A shape that can be brazed and sealed.

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 flows from the B inflow pipe to the A outflow pipe 4 and the B outflow pipe 5 as shown by arrows. Because of the same positional relationship as above, the flow can be almost equally divided into the A outflow pipe 4 and the B outflow pipe 5.

(Embodiment 15) As shown in FIG. 15, an A inflow pipe 2 and a B inflow pipe 3 are attached around the axis on a plane including the axis of the flow dividing pipe 1 and inserted in the axial direction. 4 and the B outflow pipe 5, the insertion planes of the A inflow pipe 2 and the B inflow pipe 3 are attached around the axis on a plane rotated 90 degrees around the axis of the branch pipe 1, and the A inflow pipe 2 and the B inflow Inserted from the same direction as the pipe 3, brazed, and shaped so that it can be sealed.

In the above configuration, when the refrigerant does not flow into the A inflow pipe 2, the refrigerant flowing from the B inflow pipe 3 into the branch pipe 1 is moved from the B inflow pipe 3 to the A outflow pipe 4 as shown by the arrow.
And the B outflow pipe 5 have a positional relationship under the same conditions, so that the flow is divided almost evenly, and further, since the A outflow pipe 4 and the B outflow pipe 5 are close to each other, the flow can be evenly distributed.

[0067]

As is clear from the above embodiments, according to the present invention, it is possible to provide a branch pipe having an effect of evenly distributing the refrigerant even during operation of one unit.

[Brief description of the drawings]

1A is a front view of a flow dividing pipe according to a first embodiment of the present invention, FIG. 1B is a side view, and FIG.

FIG. 2 (a) is a front view of a flow dividing tube according to a second embodiment of the present invention, FIG. 2 (b) is a side view, and FIG.

3A is a front view of a flow dividing pipe according to a third embodiment of the present invention, FIG. 3B is a side view, and FIG.

FIG. 4 (a) is a front view of a flow dividing tube according to a fourth embodiment of the present invention.

5 (a) is a front view of a flow dividing pipe according to a fifth embodiment of the present invention. FIG. 5 (b) is a side view thereof.

6 (a) is a front view of a flow dividing pipe according to a sixth embodiment of the present invention. FIG. 6 (b) is a side view thereof.

7A is a front view of a flow dividing pipe according to a seventh embodiment of the present invention, FIG. 7B is a side view, and FIG.

8 (a) is a front view of a flow dividing pipe according to an eighth embodiment of the present invention. FIG. 8 (b) is a side view thereof.

9A is a front view of a diverter according to a ninth embodiment of the present invention, FIG. 9B is a side view, and FIG.

10A is a front view of a flow dividing pipe according to a tenth embodiment of the present invention, FIG. 10B is a side view, and FIG.

11 (a) is a front view of a flow dividing tube according to Embodiment 11 of the present invention. FIG. 11 (b) is a side view.

12A is a front view of a flow dividing pipe according to a twelfth embodiment of the present invention, FIG. 12B is a side view, and FIG.

13 (a) is a front view of a flow dividing tube according to Embodiment 13 of the present invention. FIG. 13 (b) is a side view thereof.

14 (a) is a front view of a flow dividing tube according to Embodiment 14 of the present invention. FIG. 14 (b) is a side view thereof.

15A is a front view of a flow dividing pipe according to Embodiment 15 of the present invention, FIG. 15B is a side view, and FIG.

FIG. 16 (a) is a front view of a conventional flow dividing pipe, (b) is a side view, and (c) is a plan view.

FIG. 17 is a refrigeration cycle diagram using a conventional branch pipe.

[Explanation of symbols]

 1 split pipe 2 A inflow pipe 3 B inflow pipe 4 A outflow pipe 5 B outflow pipe 6 throttle mechanism

Claims (15)

[Claims] In an air conditioner, a refrigerant divided into two streams is merged and then divided into a plurality of streams by an air conditioner. Two inflow pipes are inserted axially at both ends in the direction, and a plurality of outflow pipes are axially inserted into the outflow pipe side at equal intervals from both ends in the radial direction on the same plane as the two inflow pipes. A diverter having a throttle mechanism at a refrigerant converging portion of the diverter. 2. An air conditioner, in which a refrigerant divided into two is combined and then divided into a plurality of refrigerants, wherein an inflow pipe side of the diversion pipe has an axis on a plane including the axis of the diversion pipe. Insert the two inflow pipes in the axial direction so as to be in contact with each other, and on the outflow pipe side, align the plurality of outflow pipes around the axis on the same plane as the two inflow pipes and arrange them in the axial direction. A diversion tube characterized by being inserted. 3. An air conditioner, wherein a shunt mechanism is provided near a central portion of the shunt tube in an axial direction, wherein the shunt tube divides the two shunted refrigerants and then shunts the plurality of shunts. Item 2. The diversion tube according to Item 2. 4. An air conditioner, in which a refrigerant divided into two is combined and then divided into a plurality of refrigerants, wherein an inflow pipe side of the distribution pipe has an arbitrary angle with respect to an axis of the distribution pipe. The two inflow pipes are inserted in the axial direction so as to be in contact with each other about the axis on a plane, and on the outflow pipe side, a plurality of outflow pipes are axially centered on the axis in a plane parallel to the two inflow pipes. Wherein the inflow pipe and the outflow pipe are inserted so as to overlap inside the distribution pipe. 5. A diverter pipe, in which an air conditioner merges two divided refrigerants and then divides the refrigerant into a plurality of refrigerants, wherein an inflow pipe side of the diversion pipe has a diameter on a plane including the axis of the diversion pipe. The two inflow pipes are inserted at both ends in the axial direction, and on the outflow pipe side, the insertion plane of the two inflow pipes is rotated by 90 degrees about the axis of the branch pipe in the radial direction. A plurality of outflow pipes are inserted at equal intervals from both ends of the pipe. 6. A branch pipe, in which an air conditioner merges two divided refrigerants and then branches the refrigerant into a plurality of streams, wherein an inflow pipe side of the split pipe has an axis on a plane including the axis of the split pipe. The two inflow pipes are inserted so as to be in contact with each other in the axial direction, and on the outflow pipe side, the insertion plane of the two inflow pipes is rotated by 90 degrees around the axis of the branch pipe. A plurality of outflow pipes are arranged side by side so as to be in contact with each other in the axial direction. 7. An air conditioner, wherein a shunting mechanism is provided near a central portion in the axial direction of the shunting pipe in a shunting pipe that joins the two shunted refrigerants and then shunts the plurality of shunting refrigerants. Item 7. A flow dividing tube according to Item 6. 8. An air conditioner, wherein in a branch pipe which joins the refrigerant branched into two and then branches into a plurality, the inflow pipe and the outflow pipe are inserted into the branch pipe body so as to overlap with each other. The flow dividing pipe according to claim 6, characterized in that: 9. An air conditioner, in which a plurality of divided refrigerants are merged and then divided into two, wherein an outflow pipe side of the divided pipe has a diameter on a plane including the axis of the divided pipe. The two outflow pipes are inserted axially at both ends in the direction, and on the inflow pipe side, a plurality of inflow pipes are provided on the same plane as the two outflow pipes, at the middle of the respective inlets of the two outflow pipes. A diversion tube characterized in that it is inserted toward. 10. A diverter pipe in which an air conditioner merges two divided refrigerants and then divides the refrigerant into a plurality of refrigerants, wherein a radial end of the divert pipe is provided at an inflow pipe side of the divert pipe. The two inflow pipes are arranged so as to be in contact with each other in the vertical direction, and are inserted in the axial direction.On the outflow pipe side, a plurality of outflow pipes are connected in the vertical direction in the radial direction at the radial end opposite to the inflow pipe. Diversion pipe characterized by being inserted in the axial direction side by side. 11. A diverter in which an air conditioner merges two divided refrigerants and then divides the refrigerant into a plurality of refrigerants, wherein a dividing mechanism separates an inflow side and an outflow side from each other. 10. The diversion tube according to 10. 12. An air conditioner, wherein an inflow pipe and an outflow pipe are inserted into a branch pipe main body so as to overlap with each other in a branch pipe in which two divided refrigerants are merged and then branched into a plurality. The flow dividing pipe according to claim 10. 13. An air conditioner, in which a branch pipe that merges refrigerants divided into two and then branches into a plurality of pipes, inserts an inflow pipe and an outflow pipe into the branch pipe body so as to overlap with each other,
The flow dividing pipe according to claim 10, wherein the inflow side and the outflow side are separated by a throttle mechanism. 14. An air conditioner, in which two divided refrigerants are combined and then divided into a plurality of refrigerants, and two inflow pipes are provided at both ends in a radial direction on a plane including the axis of the divided pipe. Insert the plurality of outflow pipes in the axial direction, the same as the inflow pipes at equal intervals from both ends in the radial direction on a plane obtained by rotating the insertion plane of the two inflow pipes by 90 degrees around the axis of the branch pipe. A diversion tube characterized by being inserted from the direction. 15. An air conditioner, in which a refrigerant divided into two is combined and then divided into two, wherein two inflow pipes are centered on a plane including the axis of the division pipe. The inflow pipes are inserted so as to be in contact with each other in the axial direction, and the outflow pipes are inserted into the two inflow pipes from the same direction as the inflow pipe on a plane obtained by rotating the insertion plane of the two inflow pipes by 90 degrees around the axis of the branch pipe. A diversion pipe characterized by being inserted so as to be in contact with each pipe.