CN210772507U

CN210772507U - Valve box device and multi-split air conditioning system comprising same

Info

Publication number: CN210772507U
Application number: CN201921437550.4U
Authority: CN
Inventors: 禚百田; 时斌; 程绍江; 张锐钢; 王军
Original assignee: Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-06-16
Anticipated expiration: 2029-08-30

Abstract

The utility model relates to an air conditioning technology field, concretely relates to valve box device reaches many online air conditioning system including the device. The utility model discloses aim at solving the poor problem of suitability that current valve box exists. Mesh for this reason, the utility model discloses a valve box device includes the casing and sets up a plurality of valve group in the casing, and every valve group includes a high-pressure valve and a low-pressure valve, and the first end of all high-pressure valves converges in a high-pressurepipe, and the first end of all low-pressure valves converges in a low-pressure trachea, and the second end of every high-pressure valve and the second end of the low-pressure valve that corresponds are through communicating pipe intercommunication, and a plurality of communicating pipe among a plurality of valve group can converge in an indoor side trachea. The utility model discloses a valve group of independent assortment minor diameter forms the valve group of heavy-calibre, satisfies the required refrigerant volume of connecting many interior machines, and the cost is reduced has improved the capacity of connecting the interior machine, satisfies user's large capacity demand, has realized the design and has installed unlimited independent assortment.

Description

Valve box device and multi-split air conditioning system comprising same

Technical Field

The utility model relates to an air conditioning technology field, concretely relates to valve box device reaches many online air conditioning system including the device.

Background

In the simultaneous cooling and heating multi-split air conditioning system, an outdoor unit is connected with a plurality of valve boxes, and each valve box is simultaneously connected with a plurality of indoor units. The valve boxes are used for controlling the flow direction of refrigerants in the air-conditioning system, each valve box is generally provided with a high-pressure valve and a low-pressure valve, and the two valves are switched to different switch states according to the working modes of indoor units connected with the valve boxes, so that different refrigerant flow directions are realized. Different refrigerant flow directions can be arranged between different valve boxes, so that some indoor units in the whole air conditioning system can refrigerate, and some indoor units can heat.

Because one valve box can be simultaneously connected with a plurality of indoor units, and the high-pressure valve and the low-pressure valve need to meet the normal refrigerant quantity required by the operation of the connected indoor units, the caliber of the valve box cannot be too small. The more the valve box is connected with the inner machine, the larger the valve port diameter required by calculation is. However, due to the limitations of manufacturing techniques and processes, the valve body with a larger diameter is more difficult to manufacture, and the valve body with a larger diameter is more expensive and cannot be manufactured even when the diameter is large to a certain extent. For example, if the large bore valve is 4 times the small bore flow, the cost of the large bore valve may be 10 times or more the small bore.

Accordingly, there is a need in the art for a new valve box apparatus and a multi-split air conditioning system including the same to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem among the prior art, for the poor problem of suitability that solves current valve box existence promptly, the utility model provides a valve box device, this valve box device include the casing and set up a plurality of valve group, every in the casing valve group includes a high-pressure valve and a low-pressure valve, all the first end of high-pressure valve converges in a high-pressurepipe, all the first end of low-pressure valve converges in a low-pressure trachea, every the second end of high-pressure valve with correspond the second end of low-pressure valve passes through communicating pipe intercommunication, a plurality of communicating pipe among a plurality of valve group can converge in an indoor side trachea.

In a preferred technical solution of the above valve box device, the valve box device further includes a computer board disposed in the housing, and a grouping switch is disposed on the computer board, and the grouping switch is used for grouping the plurality of valve groups so that the valve groups in the same group have the same switching state.

In a preferred technical scheme of the valve box device, the grouping switches are dial switches, and the number of dials on the dial switches is greater than or equal to the number of the valve groups.

In a preferred technical scheme of the valve box device, the dial in front of the digit is in a closed position, and the rest dials are in open positions in a plurality of dials corresponding to a plurality of valve groups in the same group.

In a preferred technical solution of the above valve cartridge device, the dial switch is an 8-position dial switch.

In a preferred technical solution of the above valve box device, the group switch includes a plurality of toggle switches independently arranged from each other, and the number of the toggle switches is greater than or equal to the number of the valve groups.

In the preferable technical scheme of the valve box device, among a plurality of toggle switches corresponding to a plurality of valve groups in the same group, the toggle switch which is in front of the sequence is in the turn-off position, and the rest of the toggle switches are in the turn-on position.

In a preferred technical scheme of the valve box device, the number of the toggle switches is 8.

In a preferred embodiment of the above valve cartridge device, the number of the valve groups is 8.

The utility model also provides a many online air conditioning system, many online air conditioning system include including any one in off-premises station, a plurality of indoor sets and the above-mentioned preferred technical scheme of at least one valve box device, the off-premises station passes through at least one valve box device with a plurality of indoor sets are connected.

The technical scheme that should be understood in the field, in the utility model discloses an in the preferred technical scheme, the valve box device includes the casing and sets up a plurality of valve groups in the casing, every valve group includes a high-pressure valve and a low-pressure valve, the first end of all high-pressure valves converges in a high-pressure trachea, the first end of all low-pressure valves converges in a low-pressure trachea, the second end of every high-pressure valve and the second end of the low-pressure valve that corresponds communicate through communicating pipe, a plurality of communicating pipe among a plurality of valve groups can converge in an indoor side trachea.

The utility model discloses a valve group of independent assortment minor diameter forms the valve group of heavy-calibre, satisfies the required refrigerant volume of connecting many interior machines, and the cost is reduced has improved the capacity of connecting the interior machine, satisfies user's large capacity demand, has realized the design and has installed unlimited independent assortment.

Furthermore, the valve box device is internally provided with the computer board and the grouping switches, so that the valve box device can be grouped through the grouping switches during application, and the valve groups in the same group can be managed conveniently.

Further, the valve groups are grouped by adopting the dial switches, and the grouping and the control of the valve groups are skillfully realized by utilizing the switch positions of a plurality of dials in the dial switches.

Drawings

The present invention will be described with reference to the accompanying drawings. In the drawings:

fig. 1 is a schematic connection diagram of a multi-split system in the prior art;

FIG. 2 is a schematic structural view of the valve box assembly of the present invention;

FIG. 3 is a schematic connection diagram of an embodiment of the valve cage assembly of the present invention;

fig. 4 is a schematic connection diagram of the multi-split system of the present invention.

List of reference numerals

10. A valve box device; 11. a housing; 12. a valve group; 13. a computer board; 131. and grouping the switches.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the figures are described with respect to an 8-bit toggle switch, the number of such bits is not constant and can be adjusted as desired by one skilled in the art to suit a particular application. For example, the dial switch may also be selected from 6-digit dials, 10-digit dials, and the like.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

First, referring to fig. 1, a related art multi-split air conditioning system will be described. Fig. 1 is a schematic connection diagram of a multi-split system in the prior art. As shown in fig. 1, in the prior art, an outdoor unit of a multi-split system is connected to a plurality of indoor units through a plurality of valve boxes, three valve boxes are provided, i.e., valve box 1-valve box 3 in fig. 1, and 9 indoor units are provided, i.e., indoor unit 1-indoor unit 9 in the figure. The valve box 1 is connected with the indoor units 1-3, the valve box 2 is connected with the indoor units 4-5, and the valve box 3 is connected with the indoor units 6-9. Each valve box is usually provided with only one high-pressure valve and one low-pressure valve (not shown in the figure), and the high-pressure valve and the low-pressure valve can adopt electric control valves such as an electromagnetic valve or an electronic expansion valve. The first end of high-pressure valve is connected with the high-pressure side of compressor in the outdoor unit through the high-pressure air pipe, and the first end of low-pressure valve is connected with the low-pressure side of compressor through the low-pressure air pipe, and the second end of high-pressure valve and the second end of low-pressure valve converge in an indoor side air pipe and are connected with the heat exchanger of indoor set through the indoor side air pipe.

When the multi-split air conditioner system operates, the high-pressure valve and the low-pressure valve in the valve box are switched on and off, so that the indoor unit can be cooled or heated. In addition, although a plurality of indoor units connected to the same valve box can be operated only in the same operation mode, indoor units connected to different valve boxes can be operated in different operation modes. For example, when the indoor unit 1 operates in the cooling mode, the indoor units 2 and 3 can only operate in the cooling mode or be in a standby state; while the indoor unit 1 operates in the cooling mode, the indoor units 4 and 6 may operate in both the cooling mode and the heating mode.

As described in the background art, since one valve box can be connected to a plurality of indoor units, when the number of the indoor units connected to the valve box is large, the high-pressure valve and the low-pressure valve in the valve box need to ensure normal refrigerant flow, and therefore, a valve with a large caliber needs to be selected. Therefore, the valve with a larger diameter not only increases the cost of the air conditioning system due to the increase of the manufacturing difficulty, but also cannot be manufactured when the diameter is larger to a certain degree.

Referring now to fig. 2 and 3, the cage assembly 10 of the present invention will be described. Wherein, fig. 2 is a schematic structural view of the valve box device of the present invention; fig. 3 is a schematic connection diagram of an embodiment of the valve box device according to the present invention.

As shown in fig. 2, in order to solve the above problems in the prior art, the valve box device 10 of the present application mainly includes a housing 11 and a plurality of valve groups 12 disposed in the housing 11, each valve group 12 includes a high-pressure valve and a low-pressure valve (not shown in the figure), first ends of the high-pressure valves in all the valve groups 12 are merged into a high-pressure air pipe, first ends of the low-pressure valves in all the valve groups 12 are merged into a low-pressure air pipe, second ends of the high-pressure valves in the same valve group 12 are communicated with second ends of the low-pressure valves through communicating pipes, and a plurality of communicating pipes in all the valve groups 12 can be merged into an indoor side air pipe after being combined.

When the valve box device 10 is applied to a multi-split system, each valve group 12 in the valve box device 10 is equivalent to a single valve box, and when the refrigerant flow provided by a single valve group 12 is sufficient to supply to one or more indoor units connected with the valve group, the communicating pipe of the valve group 12 can be directly connected with the heat exchangers of the indoor units. When a single valve group 12 is not enough to provide the required refrigerant flow for a plurality of indoor units, the connecting pipes of a plurality of valve groups 12 can be converged to a total indoor side air pipe, and then are connected with the heat exchangers of the plurality of indoor units through the indoor side air pipe.

It can be seen that the utility model discloses can form the valve group 12 of heavy-calibre through the valve group 12 of the small-bore of independent assortment to satisfy and connect the required refrigerant volume of many interior machines, the cost is reduced has improved the capacity of connecting the interior machine, satisfies user's large capacity demand, has realized the unrestricted independent assortment of design and installation. Moreover, since the valve box device 10 includes a plurality of valve groups 12, one valve box device 10 can be used as a plurality of separate valve boxes, and in practical application, the arrangement mode not only can further reduce the cost, but also can reduce the installation space of the valve boxes.

With further reference to fig. 2 and 3, in a preferred embodiment, the cage assembly 10 includes eight valve groups 12, LEV1-LEV8 in fig. 2, each valve group 12 including a high pressure valve and a low pressure valve. Each valve group 12 can be individually used as an independent valve box to be connected with a plurality of indoor units, and a plurality of valve groups 12 can also be combined to be connected with a plurality of indoor units as shown in fig. 3. The valve box device 10 further includes an electric control board, a grouping switch 131 is disposed on the electric control board, and the grouping switch 131 is used for grouping the 8 valve groups 12. Specifically, the grouping switch 131 is an 8-bit dial switch in this embodiment, and eight dials are provided ON the dial switch, and each dial can be manually adjusted to an ON position (ON) or an OFF position (OFF). The computer board 13 can be connected with a controller of the multi-split system, and the switch position of each dial is manually adjusted, so that different grouping forms are realized, and the connection requirements of different indoor units are met.

For example, as shown in FIG. 3, the cage assembly 10 is divided into three groups according to field requirements, LEV1-3 is group A, LEV4 is group B, and LEV5-8 is group C. The dialing status of OFF may be made to indicate the first of each group, and the dialing status of ON selects the most recent previous dialing status of OFF into its group according to the proximity principle. The dial packet is shown in table 1 below:

TABLE 1

When the valve box device is installed on site, the connecting pipes of the LEVs 1-3 in the valve group 12 are combined into one indoor side air manifold, the connecting pipes of the LEVs 5-8 in the valve group 12 are combined into one indoor side air manifold, the whole valve box device 10 is changed into A, B, C three paths, the user requirements are met, and the cost is saved. When the program is controlled, the valve group 12 with the dial being ON has the same switch state as the valve group 12 with the nearest previous state being OFF according to the principle of proximity. If the high pressure valve of the LEV1 in the valve group 12 is fully open and the low pressure valve is closed, the high pressure valves of the LEV2 and LEV3 in the valve group 12 are fully open, and the low pressure valve is closed.

By arranging the computer board 13 and the grouping switch 131 in the valve box device 10, the valve box device 10 can be grouped by the grouping switch 131 during application, and the valve groups 12 in the same group can be managed conveniently. By adopting the dial switch to group the valve group 12, the present application skillfully utilizes the switch positions of a plurality of dials in the dial switch to group and control the valve group 12, further reducing the cost of the valve box device 10.

It should be noted that the above preferred embodiments are only used for illustrating the principle of the present invention, and are not intended to limit the protection scope of the present invention. The utility model discloses do not deviate under the prerequisite of principle, technical personnel in the field can adjust the mode of setting up to the aforesaid, so that the utility model discloses can be applicable to more specific application scene.

For example, although the above embodiment is described with eight valve groups 12 as an example, obviously, the number should not be a condition for limiting the protection scope of the present application, and a person skilled in the art may adjust the number of the valve groups 12 based on the specific application scenario, for example, the number of the valve groups 12 may also be any number, such as five, six, ten, etc.

For another example, although the above embodiment has been described with the grouping switch 131 as a dial switch, any component that can group the valve group 12 may be substituted without departing from the principles of the present invention. For example, in an alternative embodiment, a plurality of toggle switches independently arranged from each other may be used as the grouping switch 131, as long as the number of the toggle switches is not less than the number of the valve groups 12. When grouping, the toggle switch in the off position may be the first of the group, and the toggle switch in the on position may select the closest toggle switch in the off position ahead of the toggle switch according to the principle of closeness to be divided into the group, or vice versa.

For another example, the toggle switch of the above embodiment has eight code bits, but this is not limitative, and in the case where the code bits are not less than the number of the valve groups 12, a person skilled in the art may select a toggle switch having any number of code bits for replacement.

For another example, although the above-described embodiment describes "the first of each group is indicated by the dial-state being OFF, and the dial whose state is ON selects the immediately preceding dial whose state is OFF according to the proximity principle to be entered into the group," it is obvious that a person skilled in the art may also change this, that is, the dial whose state is ON indicates the first of each group and the dial whose state is OFF selects the immediately preceding dial whose state is ON according to the proximity principle to be entered into the group.

For another example, in an alternative embodiment, even the computer board 13 and the grouping switch 131 may not be provided in the valve box apparatus 10, and the high-pressure valve and the low-pressure valve in the same group may be synchronously controlled by manually modifying the controller of the multi-split air conditioning system when the multi-split air conditioning system is installed.

Of course, the above alternative embodiments, and the alternative embodiments and the preferred embodiments can also be used in a cross-matching manner, so that a new embodiment is combined to be suitable for a more specific application scenario.

Referring to fig. 4, the multi-split air conditioning system of the present invention will be described. Wherein, fig. 4 is a schematic connection diagram of the multi-split air conditioning system of the present invention.

As shown in fig. 4, the present invention further provides a multi-split air conditioning system, which includes an outdoor unit and a plurality of indoor units, wherein the indoor units are connected to the outdoor unit by at least one of the valve box assemblies 10. Specifically, first ends of high-pressure valves of all valve groups 12 in the valve box device 10 are converged in a high-pressure air pipe and then connected with a high-pressure side of the compressor, first ends of low-pressure valves of all valve groups 12 are converged in a low-pressure air pipe and then connected with a low-pressure side of the compressor, a second end of each high-pressure valve is communicated with a second end of the corresponding low-pressure valve through a communicating pipe, and then a plurality of communicating pipes are converged in an indoor air pipe and connected with heat exchangers of a plurality of indoor units through the indoor air pipe.

By arranging the valve box device 10 in the multi-split air conditioning system, the cost of the multi-split air conditioning system is greatly reduced, and the unlimited free combination of design and installation between the valve box device 10 and the indoor unit is realized.

It will be appreciated by those of skill in the art that although some embodiments described herein include some but not other features included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims of the present invention, any of the claimed embodiments may be used in any combination.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. The utility model provides a valve box device, its characterized in that, the valve box device includes the casing and sets up a plurality of valve groups in the casing, every valve group includes a high-pressure valve and a low-pressure valve, all the first end of high-pressure valve converges in a high-pressurepipe, all the first end of low-pressure valve converges in a low-pressure trachea, every the second end of high-pressure valve and the second end of the shown low-pressure valve that corresponds communicate through communicating pipe, a plurality of communicating pipe among a plurality of valve groups can converge in an indoor side trachea.

2. The valve box device according to claim 1, further comprising a computer board disposed in the housing, wherein the computer board is provided with a grouping switch, and the grouping switch is configured to group the plurality of valve groups, so that the valve groups in the same group have the same switching state.

3. The valve cage assembly of claim 2 wherein said grouping switches are dip switches, the number of dip switches being greater than or equal to the number of valve groups.

4. The valve cage assembly of claim 3 wherein the first of said plurality of dials in a grouping of a plurality of valve groups is in an off position and the remaining of said plurality of dials are in an on position.

5. The valve cage apparatus of claim 3, wherein the dip switch is an 8-position dip switch.

6. The valve box apparatus according to claim 2, wherein the grouping switch comprises a plurality of toggle switches independently disposed from each other, and the number of the toggle switches is equal to or greater than the number of the valve groups.

7. The valve box device according to claim 6, wherein among the plurality of toggle switches corresponding to the plurality of valve groups in the same group, the toggle switch in the front of the sequence is in the off position, and the rest of the toggle switches are in the on position.

8. The valve cage apparatus of claim 7, wherein the number of toggle switches is 8.

9. The valve box apparatus according to any one of claims 1 to 8, wherein the number of the valve groups is 8.

10. A multi-split air conditioning system comprising an outdoor unit, a plurality of indoor units, and at least one valve box device according to any one of claims 1 to 9, wherein the outdoor unit is connected to the plurality of indoor units through the at least one valve box device.