CN218031569U - Four-way connecting pipe assembly, single-cooling type air conditioner and single-heating type air conditioner - Google Patents

Abstract

The utility model discloses a cross connecting tube subassembly, single cold type air conditioner and single hot type air conditioner. The four-way connecting pipe assembly comprises a main valve body, a guide seat assembly and a valve seat. The main valve body comprises a first chamber, a second chamber and an intermediate chamber. A first interface, a second interface, a third interface and a fourth interface are arranged on the wall of the middle chamber, the first interface is communicated with the first chamber through a first bypass pipe, and the third interface is communicated with the second chamber through a second bypass pipe; the valve seat is fixed in the middle cavity, the guide seat is abutted against the valve seat to form a slide valve cavity between the guide seat and the valve seat, and the valve seat is provided with a second through hole and a third through hole; the four-way connecting pipe assembly is in a connection state that the first interface and the fourth interface are communicated through the middle chamber, and the second through hole and the third through hole are communicated through the sliding valve chamber body. According to the utility model discloses a four-way connection pipe assembly can reduce air conditioning system's development cost and manufacturing cost.

Description

Four-way connecting pipe assembly, single-cooling type air conditioner and single-heating type air conditioner

Technical Field

The utility model relates to a cross connection pipe technical field particularly, relates to a cross connection pipe assembly, single cold type air conditioner and single hot type air conditioner.

Background

The four-way reversing valve is a valve used for changing the flow direction of refrigerant gas on a heat pump type air conditioner, and can change respective functions of an outdoor heat exchanger and an indoor heat exchanger so as to meet the requirements of people on refrigeration in summer and heating in winter, but for some use scenes, the air conditioner only needs a single cooling function or a single heating function, the cost of the heat pump type air conditioner is often more expensive than that of the single cooling type air conditioner or the single heating type air conditioner, the development and verification cost of independently developing the single cooling type air conditioner or the single heating type air conditioner is higher, and the quick development of the single cooling type air conditioner or the single heating type air conditioner by enterprises is not facilitated.

The existing electromagnetic four-way reversing valve comprises a main valve, a pilot valve and a coil, wherein the main valve body of the main valve is a tubular member, and a valve seat and four connecting pipes are arranged in the tubular member; the inner ends of the four connecting pipes are respectively inserted into the through holes of the valve body and then are connected into a whole through brazing and kept sealed; the arc surface of the valve seat is attached to the inner surface of the main valve body, the inner ends of the three connecting pipes penetrate through the corresponding valve body through holes and are inserted into the corresponding valve seat holes, and the three connecting pipes are connected with the valve seat and the main valve body into a whole through brazing and keep sealed.

If the existing four-way valve adopted by the single-cooling type air conditioner is higher in cost, compared with a four-way reversing valve commonly used in the current market, the novel four-way connecting pipe assembly is provided, and the pressure of the air conditioning system is automatically adjusted to be suitable for the single-cooling type air conditioner or the single-heating type air conditioner.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the utility model provides a cross connecting pipe subassembly can replace the cross reversing valve subassembly of heat pump type air conditioner, simple structure, corresponding reduction air conditioning system's development cost and manufacturing cost.

The utility model also provides a single cold type air conditioner of having above-mentioned cross connecting pipe subassembly.

The utility model also provides a single hot type air conditioner of having above-mentioned cross connecting pipe subassembly.

According to the utility model discloses four-way connection pipe assembly, including the main valve body, guide holder subassembly, disk seat. Wherein the main valve body has a chamber therein; the guide seat assembly is movably arranged in the cavity and comprises a guide seat and pistons positioned at two ends of the guide seat, the pistons are attached to the cavity wall of the cavity, the cavity comprises a first cavity positioned at one side of the guide seat assembly, a second cavity positioned at the other side of the guide seat assembly and a middle cavity where the guide seat is positioned, a first interface, a second interface, a third interface and a fourth interface are arranged on the cavity wall of the middle cavity, the first interface is communicated with the first cavity through a first bypass pipe, and the third interface is communicated with the second cavity through a second bypass pipe; the valve seat is fixed in the middle cavity, the guide seat is abutted against the valve seat to form a slide valve cavity between the guide seat and the valve seat, and a second through hole at least partially opposite to the second port and a third through hole at least partially opposite to the third port are formed in the valve seat; the four-way connecting pipe assembly is in a connection state that the first connector and the fourth connector are communicated through the middle chamber, and the second through hole and the third through hole are communicated through the sliding valve cavity.

According to the utility model discloses four-way connecting pipe subassembly can replace heat pump type air conditioner's four-way reversing valve subassembly for heat pump type air conditioner can switch into single cold type air conditioner or single hot type air conditioner fast, simple structure, corresponding reduction air conditioning system's development cost and manufacturing cost.

And the valve seat is also provided with a fourth through hole at least partially opposite to the fourth interface.

According to some embodiments of the utility model, the guide holder includes leading truck and slide valve, the leading truck is movably located in the chamber, the slide valve is fixed in the leading truck, just the slide valve stop in the disk seat, the slide valve pocket is formed the slide valve with between the disk seat.

According to the utility model discloses a some embodiments, the one end of leading truck is first piston, the other end of leading truck is the second piston, first piston with the outer peripheral face of second piston all with the chamber wall laminating of cavity.

According to some embodiments of the present invention, the first interface, the second interface, the third interface, the fourth interface all are fixed with the connecting pipe.

According to the utility model discloses a some embodiments, every keeping away from of connecting pipe the one end of the main valve body is connected with the adapter sleeve, the material of connecting pipe includes first metal, the material of adapter sleeve includes the second metal.

According to some embodiments of the invention, the first metal is iron and the second metal is copper.

According to the utility model discloses a some embodiments, the second through-hole the third through-hole the fourth through-hole all includes through-hole body and through-hole variable diameter portion, the aperture of through-hole variable diameter portion is less than the aperture of through-hole body, just the through-hole variable diameter portion with form the step face between the through-hole body, the connecting pipe peg graft in corresponding the through-hole body, just the connecting pipe is with corresponding the step face is separated in order to form pre-buried solder district.

According to the utility model discloses a some embodiments, the second through-hole the third through-hole the fourth through-hole all includes through-hole body and through-hole variable diameter portion, the aperture of through-hole variable diameter portion is less than the aperture of through-hole body, just the through-hole variable diameter portion with form the step face between the through-hole body, the connecting pipe is pegged graft in corresponding the through-hole body just ends to correspond the step face.

According to another aspect of the present invention, a single cooling type air conditioner includes the four-way connecting pipe assembly, a compressor, an indoor unit, and an outdoor unit, wherein the compressor has a compressor exhaust port and a compressor intake port, the compressor exhaust port is communicated with the first interface, and the compressor intake port is communicated with the third interface; the indoor unit is communicated with the second interface; one end of the outdoor unit is communicated with the fourth interface, and the other end of the outdoor unit is communicated with the indoor unit.

The single-cooling type air conditioner can realize the independent refrigeration function by using the four-way connecting pipe assembly, and has the advantages of simple structure and low development cost and production cost.

According to another aspect of the present invention, a single-heat type air conditioner includes the four-way connecting pipe assembly, a compressor, an indoor unit, and an outdoor unit, wherein the compressor has a compressor exhaust port and a compressor intake port, the compressor exhaust port is communicated with the first interface, and the compressor intake port is communicated with the third interface; the indoor unit is communicated with the fourth interface; one end of the outdoor unit is communicated with the second interface, and the other end of the outdoor unit is communicated with the indoor unit.

The single-heating type air conditioner can realize the independent heating function by using the four-way connecting pipe assembly, and has the advantages of simple structure, low development cost and low production cost.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a perspective view of a main valve body of a four-way pipe junction assembly according to an embodiment of the present invention;

fig. 2 is a perspective view of the main valve body of the four-way pipe junction assembly from another perspective according to an embodiment of the present invention;

fig. 3 is a perspective view of a guide frame of a four-way pipe connecting pipe assembly according to an embodiment of the present invention;

FIG. 4 is a perspective view of a spool valve of a four-way pipe junction block assembly according to an embodiment of the present invention;

fig. 5 is a perspective view of the spool valve of the four-way pipe connector assembly from another perspective according to an embodiment of the present invention;

fig. 6 is a perspective view of a rod guide assembly of the four-way pipe connector assembly according to an embodiment of the present invention;

fig. 7 is a perspective view of a valve seat of a four-way pipe connector assembly according to an embodiment of the present invention;

figure 8 is a perspective view of the valve seat of the four-way pipe connector assembly from another perspective according to an embodiment of the present invention;

fig. 9 is a front view of a four-way pipe connector assembly according to an embodiment of the present invention;

figure 10 is a side view of a four-way pipe connector assembly according to an embodiment of the present invention;

fig. 11 is a cross-sectional view of a four-way pipe connector assembly according to an embodiment of the present invention;

FIG. 12 is an enlarged view of a portion of FIG. 11 at A;

fig. 13 is a partial enlarged view at B in fig. 11;

fig. 14 is a schematic diagram of a single cooling type air conditioner according to another aspect of the present invention;

fig. 15 is a schematic diagram of a single-heat type air conditioner according to another aspect of the present invention.

Reference numerals are as follows:

the main valve body 1, the second chamber 11, the first chamber 12, the middle chamber 13, the first port 14, the second port 15, the third port 16, the fourth port 17, the first bypass pipe 18, the second bypass pipe 19, the first bypass hole 101, the second bypass hole 102, the rod guide assembly 2, the first piston 21, the second piston 22, the spool valve body 23, the rod guide 24, the rod guide 241, the spool 25, the slider 26, the connecting portion 27, the boss 28, the valve seat 3, the second through hole 31, the third through hole 32, the fourth through hole 33, the through hole body 34, the through hole diameter-changing portion 35, the embedded solder region 36, the connecting pipe 4, the first connecting pipe 41, the second connecting pipe 42, the third connecting pipe 43, the fourth connecting pipe 44, the connecting sleeve 5, the first connecting sleeve 51, the second connecting sleeve 52, the third connecting sleeve 53, the fourth connecting sleeve 54, the compressor 6, the compressor exhaust port 61, the compressor inlet 62, the indoor unit 7, and the outdoor unit 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

The four-way connection pipe assembly and the single cooling type air conditioner and the single heating type air conditioner having the same according to the embodiments of the present invention will be described in detail with reference to fig. 1 to 15.

Referring to fig. 1 to 13, a four-way junction block assembly according to an embodiment of the present invention may include a main valve body 1, a rod guide assembly 2, and a valve seat 3.

Wherein, main valve body 1 has a chamber therein, optionally, as shown in fig. 1-2, main valve body 1 is a cylindrical hollow cavity, and the chamber is used for gas circulation. In the cavity was located to rod guide subassembly 2 is movably, rod guide subassembly 2 includes the rod guide and is located the piston at rod guide both ends, and the cavity is including the first cavity 12 that is located rod guide subassembly 2 one side, the second cavity 11 that is located rod guide subassembly 2 opposite side, the middle cavity 13 at rod guide place, and optionally, as shown in fig. 10, rod guide subassembly 2 right side is first cavity 12, rod guide subassembly 2 left side is second cavity 11, the cavity between the piston at rod guide both ends is middle cavity 13. The piston is attached to the wall of the chamber, so that the first chamber 12 and the second chamber 11 are independent from the middle chamber 13.

The cavity wall of the middle chamber 13 is provided with a first interface 14, a second interface 15, a third interface 16 and a fourth interface 17, the first interface 14 is communicated with the first chamber 12 through a first bypass pipe 18, the third interface 16 is communicated with the second chamber 11 through a second bypass pipe 19, so that a medium at the first interface 14 can be communicated with a medium in the first chamber 12 through the first bypass pipe 18, and a medium at the third interface 16 and a medium in the second chamber 11 can be communicated with each other through the second bypass pipe 19.

Optionally, as shown in fig. 1-2 and 9-11, the second port 15, the third port 16, and the fourth port 17 are located on one side of the main valve body 1, and the first port 14 is disposed opposite to the second port 15, the third port 16, and the fourth port 17. A second bypass hole 101 is formed in the cavity wall of the first cavity 12, one end of the first bypass pipe 18 is connected with the second bypass hole 101, and the other end of the first bypass pipe is connected with the first port 14, so that the first port 14 is communicated with the first cavity 12; a second bypass hole 102 is formed in the wall of the second chamber 11, one end of the second bypass pipe 19 is connected to the second bypass hole 102, and the other end is connected to the third port 16, so that the third port 16 is communicated with the second chamber 11. When there is a pressure differential between first chamber 12 and second chamber 11, rod guide assembly 2 moves within the cavity until the pressures on the two sides are balanced.

Referring to fig. 3 to 10, the valve seat 3 is fixed in the middle chamber 13, optionally, one side of the valve seat 3 is an arc surface, the arc surface is in accordance with the shape of the chamber wall of the middle chamber 13, and the valve seat 3 and the chamber wall of the middle chamber 13 may be fixedly connected by one or more fixing methods, such as welding, gluing, or fastening. The guide seat is stopped against the valve seat 3 to form a slide valve cavity 23 between the guide seat and the valve seat 3, the valve seat 3 is provided with a second through hole 31 and a third through hole 32, the second through hole 31 is at least partially opposite to the second interface 15, and the third through hole 32 is at least partially opposite to the third interface 16.

Alternatively, as shown in fig. 10, the valve seat 3 is located below the guide seat, the lower surface of the guide seat abuts against the upper surface of the valve seat 3, a spool cavity 23 is formed between the guide seat and the valve seat 3, and the intermediate cavity can be divided into the spool cavity 23 and a cavity outside the spool cavity 23. The valve seat 3 is provided with a second through hole 31 and a third through hole 32. Optionally, in some embodiments, the second through hole 31 is aligned with the second port 15, and the third through hole 32 is aligned with the third port 16. In other embodiments, the second through hole 31 is partially opposite to the second port 15, and the third through hole 32 is partially opposite to the third port 16, in other words, the second through hole 31 is partially staggered from the second port 15 and only partially communicated with the second port, and similarly, the third through hole 32 and the third port 16 are also provided.

The four-way junction block assembly has an on state in which the first port 14 and the fourth port 17 communicate through the intermediate chamber 13, and the second through hole 31 and the third through hole 32 communicate through the spool chamber 23. Alternatively, when the pressure in the first chamber 12 is greater than the pressure in the second chamber 11, the rod guide assembly 2 moves toward the second chamber 11, the second through hole 31 and the third through hole 32 face the spool cavity 23 or partially face the spool cavity 23, as shown in fig. 10, the first port 14 and the fourth port 17 are both located in the middle chamber 13, the first port 14 is communicated with the fourth port 17, and the second through hole 31 is communicated with the third through hole 32 through the spool cavity 23. Present four-way reversing valve can commutate, the utility model discloses a pilot valve and coil have been got rid of to four-way connecting pipe subassembly, no longer commutates, can be used to single cold type air conditioner or single hot type air conditioner.

In some embodiments of the present invention, a fourth through hole 33 is further disposed on the valve seat 3, and the fourth through hole 33 is at least partially aligned with the fourth interface 17. Optionally, in some embodiments, the fourth through hole 33 is directly opposite to the fourth interface 17, and in other embodiments, the fourth through hole 33 is partially directly opposite to the fourth interface 17. In other words, the fourth through hole 33 is partially offset from the fourth port 17 and only partially communicates therewith. In the on state, the first port 14 communicates with the fourth through hole 33 through the intermediate chamber 13, and the second through hole 31 and the third through hole 32 communicate through the spool chamber 23.

According to the utility model discloses four-way connection pipe assembly can replace heat pump type air conditioner's four-way reversing valve subassembly, and first interface 14 and fourth through-hole 33 are through middle cavity 13 intercommunication, second through-hole 31 and third through-hole 32 through slide valve cavity 23 intercommunication for heat pump type air conditioner can be switched into single cold type air conditioner or single hot type air conditioner fast, simple structure, corresponding reduction air conditioning system's development cost and manufacturing cost.

In some embodiments of the present invention, referring to fig. 3-6 and 10, the guide seat comprises a guide frame 24 and a slide valve 25, the guide frame 24 is movably disposed in the chamber, the slide valve 25 is fixed to the guide frame 24, the slide valve 25 abuts against the valve seat 3, and the slide valve chamber 23 is formed between the slide valve 25 and the valve seat 3. Optionally, the guide frame 24 is provided with a guide groove 241, the spool 25 includes a slider 26, a connecting portion 27 and a protruding portion 28, the connecting portion 27 and the protruding portion 28 pass through the guide groove 241, the connecting portion 27 has the same shape as the guide groove 241, the connecting portion 27 is clamped in the guide groove 241, the connecting portion 27 is in interference fit with the guide groove 241, the upper surface of the slider 26 abuts against the lower surface of the guide frame 24, the lower surface of the slider 26 abuts against the valve seat 3, and a spool cavity 23 is formed between the spool 25 and the valve seat 3.

In some embodiments of the present invention, referring to fig. 3 and 10, one end of the guiding frame 24 is a first piston 21, the other end of the guiding frame 24 is a second piston 22, and the outer peripheral surfaces of the first piston 21 and the second piston 22 are both attached to the cavity wall of the cavity. Alternatively, in fig. 10, the first chamber 12 is located on a side of the first piston 21 away from the second piston 22, that is, the first chamber 12 is located on a right side of the first piston 21, the second chamber 11 is located on a side of the second piston 22 away from the first piston 21, that is, the second chamber 11 is located on a left side of the second piston 22, and the intermediate chamber 13 is located between the first piston 21 and the second piston 22, because the outer peripheral surfaces of the first piston 21 and the second piston 22 are both attached to the chamber walls of the chambers, the first chamber 12 and the second chamber 11 are two chambers isolated from each other, and when there is a pressure difference between the first chamber 12 and the second chamber 11, the guide frame 24 moves to the chamber with a smaller pressure. Specifically, as shown in fig. 10, when the pressure of the first chamber 12 is greater than that of the second chamber 11, the guide frame 24 moves to the left until the pressures of the first chamber 12 and the second chamber 11 are balanced, and at this time, the volume of the first chamber 12 is greater than that of the second chamber 11.

In some embodiments of the present invention, referring to fig. 9 and 10, the first interface 14, the second interface 15, the third interface 16, and the fourth interface 17 are fixed with the connection pipe 4. The gas communicates with the chamber in the main valve body 1 via a connecting tube 4. Optionally, as shown in fig. 10, the first interface 14, the second interface 15, the third interface 16, and the fourth interface 17 are in communication with the intermediate chamber 13, specifically, as shown in fig. 9, the connection pipe 4 includes a first connection pipe 41, a second connection pipe 42, a third connection pipe 43, and a fourth connection pipe 44, the first interface 14 is a flanged hole, so that the first interface 14 and the first connection pipe 41 are more firmly fixed, the first connection pipe 41 is fixed to the first interface 14 and is in communication with the first interface 14, and optionally, the first connection pipe 41 and the first interface 14 are fixed by furnace welding, argon arc welding, or laser welding. The second connecting pipe 42 is fixed to the second connector 15 and is communicated with the second connector 15, and optionally, the second connecting pipe 42 is welded and fixed to the second connector 15 and the second through hole 31 by furnace welding, argon arc welding or laser welding. The third connecting pipe 43 is fixed to the third port 16 and is communicated with the third port 16, optionally, the third connecting pipe 43 is fixed to the third port 16 and the third through hole 32 by furnace welding, argon arc welding or laser welding. The fourth connecting pipe 44 is fixed to the fourth port 17 and is communicated with the fourth port 17, optionally, the fourth connecting pipe 44 is welded and fixed to the fourth port 17 and the fourth through hole 33 by furnace welding, argon arc welding or laser welding. When the second port 15 and the third port 16 are communicated through the spool chamber 23, the connecting pipe 4 fixed to the second port 15 is communicated with the connecting pipe 4 fixed to the third port 16, i.e., the second connecting pipe 42 is communicated with the third connecting pipe 43, and the connecting pipe 4 fixed to the first port 14 is communicated with the connecting pipe 4 fixed to the fourth port 17, i.e., the first connecting pipe 41 is communicated with the fourth connecting pipe 44.

The first connection pipe 41 communicates with the first chamber 12 through the first bypass pipe 18, and the third connection pipe 43 communicates with the second chamber 11 through the second bypass pipe 19.

In some embodiments of the present invention, as shown in fig. 9 to 11, a connecting sleeve 5 is connected to one end of each connecting pipe 4 far from the main valve body 1, the material of the connecting pipe 4 includes a first metal, and the material of the connecting sleeve 5 includes a second metal. Alternatively, the connecting tube 4 and the connecting sleeve 5 may be fixed by welding, screwing, or fastening. The connecting pipe 4 and the connecting sleeve 5 are made of different materials, so that a user can select the first metal with lower cost according to different requirements, the cost of the connecting pipe 4 can be reduced, and the performance of the four-way connecting pipe assembly is not influenced. Specifically, the connection sleeve 5 includes a first connection sleeve 51, a second connection sleeve 52, a third connection sleeve 53, and a fourth connection sleeve 54, the first connection sleeve 51 is connected to an end of the first connection pipe 41 away from the main valve body 1, the second connection sleeve 52 is connected to an end of the second connection pipe 42 away from the main valve body 1, the third connection sleeve 53 is connected to an end of the third connection pipe 43 away from the main valve body 1, and the fourth connection sleeve 54 is connected to an end of the fourth connection pipe 44 away from the main valve body 1.

In some alternative embodiments, the welding temperature between the first metal and the second metal is higher than the welding temperature between the second metal and the second metal, so that the first metal and the second metal can be welded by high-temperature welding, furnace welding and the like, and the second metal can be welded by low-temperature welding such as brazing and the like.

In some embodiments of the present invention, the first metal is iron and the second metal is copper. The cost of iron is lower than that of copper, and the manufacturing cost of the connecting pipe 4 can be reduced. Like this, the main material of connecting pipe 4 includes iron, can also include other materials, for example carbon, and like this, connecting pipe 4 is the steel pipe, and the material of steel pipe can specifically be iron-containing material such as carbon steel, stainless steel. Of course, the connecting tube 4 may also be a pure iron tube. The main material of the connecting sleeve 5 comprises copper and can also comprise other materials, of course, the connecting sleeve 5 can also be pure copper, the connecting sleeve 5 is a copper sleeve, and the welding temperature of the copper sleeve is low, so that the connecting sleeve can be connected with other copper pipes in the air conditioning system conveniently.

In some alternative embodiments, the first metal may also be chromium, and the second metal may also be aluminum, which are not described herein again.

In some embodiments of the utility model, referring to fig. 7, fig. 8, fig. 10, fig. 13, second through-hole 31, third through-hole 32, fourth through-hole 33 all include through-hole body 34 and through-hole variable diameter portion 35, the aperture of through-hole variable diameter portion 35 is less than the aperture of through-hole body 34, and form the step face between through-hole variable diameter portion 35 and the through-hole body 34, connecting pipe 4 pegs graft in the through-hole body 34 that corresponds, and connecting pipe 4 separates in order to form pre-buried solder district 36 with the step face that corresponds, make things convenient for connecting pipe 4 and the through-hole welding that corresponds. In some examples, as shown in fig. 13, one end of the through hole close to the spool 25 is a through hole variable diameter portion 35, the other end is a through hole body 34, the diameter of the through hole variable diameter portion 35 is smaller than the diameter of the through hole body 34, and a step surface is formed between the through hole variable diameter portion 35 and the through hole body 34, when the connecting pipe 4 is installed, the solder may be placed in the pre-embedded solder area 36 in advance, and then the connecting pipe 4 may be installed.

The utility model discloses an in some embodiments, second through-hole 31, third through-hole 32, fourth through-hole 33 all include through-hole body 34 and through-hole variable diameter portion 35, and the aperture of through-hole variable diameter portion 35 is less than the aperture of through-hole body 34, and forms the step face between through-hole variable diameter portion 35 and the through-hole body 34, and connecting pipe 4 pegs graft in the through-hole body 34 that corresponds and end to the step face that corresponds, and like this, the step face can be spacing to connecting pipe 4. Alternatively, the connection tube 4 may be interference fit with the through-hole body 34 to achieve sealing between the connection tube 4 and the through-hole body 34. The connecting pipe 4 may be adhesively fixed to the through-hole body 34.

A specific embodiment of a four-way junction block assembly according to the present invention is provided below.

The four-way connecting pipe component comprises a main valve body 1, a guide seat component 2 and a valve seat 3. Wherein, main valve body 1 is the hollow cylinder cavity that has the chamber. In the chamber was located to the movably guide holder subassembly 2, guide holder subassembly 2 includes the guide holder and is located the first piston 21 on guide holder right side and is located the left second piston 22 of guide holder, the outer peripheral face of first piston 21 and second piston 22 all with the chamber wall laminating of chamber. The cavity divide into and is located first cavity 12 on first piston 21 right side, be located second cavity 11 on second piston 22 left side, middle cavity 13 at guide holder place, first interface 14 has been seted up on the chamber wall of middle cavity 13, second interface 15, third interface 16, fourth interface 17, first interface 14, second interface 15, third interface 16, fourth interface 17 all is fixed with connecting pipe 4, the one end of keeping away from main valve body 1 of every connecting pipe 4 is connected with adapter sleeve 5, connecting pipe 4 is the stainless steel pipe, adapter sleeve 5 is the copper sheathing, connecting pipe 4 and adapter sleeve 5 pass through flame path furnace welding welded fastening.

A first bypass hole 101 is formed in the cavity wall of the first chamber 12, a second bypass hole 102 is formed in the cavity wall of the second chamber 11, the first connecting pipe 41 at the first port 14 is communicated with the first bypass hole 101 through the first bypass pipe 18, and the third connecting pipe 43 at the third port 16 is communicated with the second bypass hole 102 through the second bypass pipe 19. The valve seat 3 is positioned below the guide seat, and the valve seat 3 is welded and fixed with the cavity wall of the middle cavity 13. The guide housing comprises a guide frame 24 and a slide valve 25, the guide frame 24 being movably arranged in the chamber. The guide frame 24 is provided with a guide groove 241, the slide valve 25 comprises a slide block 26, a connecting portion 27 and a protruding portion 28, the connecting portion 27 and the protruding portion 28 penetrate through the guide groove 241, the connecting portion 27 is identical to the guide groove 241 in shape, the connecting portion 27 is clamped on the guide groove 241, the connecting portion 27 is in interference fit with the guide groove 241, the upper surface of the slide block 26 is attached to the lower surface of the guide frame 24, the lower surface of the slide block 26 abuts against the valve seat 3, and a slide valve cavity 23 is formed between the slide valve 25 and the valve seat 3.

A second through hole 31 opposite to the second interface 15, a third through hole 32 opposite to the third interface 16 and a fourth through hole 33 opposite to the fourth interface 17 are formed in the valve seat 3, and the connecting pipe 4 is inserted into the corresponding through holes through the corresponding interfaces; the four-way connection pipe assembly has an on state in which the first port 14 and the fourth through hole 33 communicate through the intermediate chamber 13, and the second through hole 32 and the third through hole 33 communicate through the spool chamber body 23.

Second through-hole 31, third through-hole 32, fourth through-hole 33 all includes through-hole body 34 and through-hole variable diameter portion 35, the through-hole is close to spool 25 one end and is through-hole variable diameter portion 35, the other end is through-hole body 34, the aperture of through-hole variable diameter portion 35 is less than the aperture of through-hole body 34, and form the step face between through-hole variable diameter portion 35 and the through-hole body 34, connect 4 and peg graft at through-hole body 34, connecting pipe 4 separates with the step face and forms pre-buried solder district 36, during installation connecting pipe 4, can arrange solder in pre-buried solder district 36 in advance, install connecting pipe 4 again.

According to another aspect of the present invention, a single cooling type air conditioner, as shown in fig. 1-2 and 14, may include the four-way connecting pipe assembly, the compressor 6, the indoor unit 7, and the outdoor unit 8, the compressor 6 has a compressor exhaust port 61 and a compressor air inlet 62, the compressor exhaust port 61 communicates with the first interface 14, the compressor air inlet 62 communicates with the third interface 16, the indoor unit 7 communicates with the second interface 15, one end of the outdoor unit 8 communicates with the fourth interface 17, the other end of the outdoor unit 8 communicates with the indoor unit 7, and a throttling element is disposed between the indoor unit 7 and the outdoor unit 8. When the four-way connection pipe assembly comprises the connection pipe 4 and the connection sleeve 5, the compressor air outlet 61 is communicated with the first connection sleeve 51, the compressor air inlet 62 is communicated with the third connection sleeve 53, the indoor unit 7 is communicated with the second connection sleeve 52, and the outdoor unit 8 is communicated with the fourth connection sleeve 54.

The circulation path of the internal medium of the single-cooling type air conditioner system is as follows: the compressor discharge port 61 → the first port 14 → the intermediate chamber 13 → the fourth port 17 → the outdoor unit 8 → the throttling element → the indoor unit 7 → the second port 15 → the spool chamber 23 → the third port 16 → the compressor suction port 62.

According to the utility model discloses the single cold type air conditioner of on the other hand embodiment can realize cryogenic function alone through using foretell cross connecting pipe subassembly, simple structure, and development cost and low in production cost.

According to another aspect of the present invention, a single-heating type air conditioner, as shown in fig. 1-2 and 15, includes the four-way connecting pipe assembly, the compressor 6, the indoor unit 7 and the outdoor unit 8, the compressor 6 has a compressor exhaust port 61 and a compressor intake port 62, the compressor exhaust port 61 is communicated with the first port 14, the compressor intake port 62 is communicated with the third port 16, the indoor unit 7 is communicated with the fourth port 17, one end of the outdoor unit 8 is communicated with the second port 15, the other end of the outdoor unit 8 is communicated with the indoor unit 7, and a throttling element is disposed between the indoor unit 7 and the outdoor unit 8. When the four-way connection pipe assembly includes the connection pipe 4 and the connection sleeve 5, the compressor discharge port 61 communicates with the first connection sleeve 51, the compressor intake port 62 communicates with the third connection sleeve 53, the indoor unit 7 communicates with the fourth connection sleeve 54, and the outdoor unit 8 communicates with the second connection sleeve 52.

The circulation path of the internal medium of the single-heat type air conditioner system is as follows: the compressor discharge port 61 → the first port 14 → the intermediate chamber 13 → the fourth port 17 → the indoor unit 7 → the throttling element → the outdoor unit 8 → the second port 15 → the spool chamber 23 → the third port 16 → the compressor suction port 62.

According to the utility model discloses the single hot type air conditioner of on the other hand embodiment can realize the function of heating alone through using foretell cross connection pipe assembly, simple structure, and development cost and low in production cost.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (11)

1. A four-way junction block assembly, comprising:

a main valve body having a chamber therein;

the guide seat assembly is movably arranged in the cavity and comprises a guide seat and pistons positioned at two ends of the guide seat, the pistons are attached to the cavity wall of the cavity, the cavity comprises a first cavity positioned at one side of the guide seat assembly, a second cavity positioned at the other side of the guide seat assembly and a middle cavity where the guide seat is positioned, a first interface, a second interface, a third interface and a fourth interface are arranged on the cavity wall of the middle cavity, the first interface is communicated with the first cavity through a first bypass pipe, and the third interface is communicated with the second cavity through a second bypass pipe;

the valve seat is fixed in the middle cavity, the guide seat abuts against the valve seat to form a slide valve cavity between the guide seat and the valve seat, and the valve seat is provided with a second through hole at least partially opposite to the second port and a third through hole at least partially opposite to the third port;

the four-way connecting pipe assembly is in a connection state that the first connector and the fourth connector are communicated through the middle chamber, and the second through hole and the third through hole are communicated through the sliding valve cavity.

2. The four-way junction block assembly of claim 1, wherein the valve seat further defines a fourth aperture at least partially aligned with the fourth port.

3. The four-way junction block assembly of claim 1 or 2, wherein the guide housing comprises a guide frame movably disposed within the chamber and a slide valve fixed to the guide frame and abutting against the valve seat, the slide valve chamber being formed between the slide valve and the valve seat.

4. The four-way connector tube assembly of claim 3, wherein one end of the guide frame is a first piston, the other end of the guide frame is a second piston, and the outer peripheral surfaces of the first piston and the second piston are attached to the wall of the chamber.

5. The four-way junction block assembly of claim 2, wherein the first, second, third, and fourth junctions are each secured with a junction tube.

6. The four-way junction block assembly of claim 5, wherein a connecting sleeve is connected to an end of each connecting tube remote from the main valve body, the connecting tube comprising a first metal and the connecting sleeve comprising a second metal.

7. The four-way junction block assembly of claim 6, wherein said first metal is iron and said second metal is copper.

8. The four-way connection pipe assembly according to any one of claims 5 to 7, wherein the second through hole, the third through hole and the fourth through hole each comprise a through hole body and a through hole diameter-changing portion, the aperture of the through hole diameter-changing portion is smaller than that of the through hole body, a step surface is formed between the through hole diameter-changing portion and the through hole body, the connection pipe is plugged into the corresponding through hole body, and the connection pipe is separated from the corresponding step surface to form a pre-embedded solder region.

9. The four-way connection pipe assembly according to any one of claims 5 to 7, wherein the second through hole, the third through hole and the fourth through hole each comprise a through hole body and a through hole variable diameter portion, the diameter of the through hole variable diameter portion is smaller than that of the through hole body, a step surface is formed between the through hole variable diameter portion and the through hole body, and the connection pipe is inserted into the corresponding through hole body and abuts against the corresponding step surface.

10. A single cooling type air conditioner, comprising:

the four-way junction block assembly of any one of claims 1-9;

a compressor having a compressor discharge port in communication with the first interface and a compressor intake port in communication with the third interface;

the indoor unit is communicated with the second interface;

and one end of the outdoor unit is communicated with the fourth interface, and the other end of the outdoor unit is communicated with the indoor unit.

11. A single heat type air conditioner, comprising:

the four-way junction block assembly of any one of claims 1-9;

a compressor having a compressor discharge port in communication with the first interface and a compressor inlet port in communication with the third interface;

the indoor unit is communicated with the fourth interface;

and one end of the outdoor unit is communicated with the second interface, and the other end of the outdoor unit is communicated with the indoor unit.

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