CN217737593U

CN217737593U - Refrigerant control box and heat pump system

Info

Publication number: CN217737593U
Application number: CN202221814911.4U
Authority: CN
Inventors: 李策
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2022-07-13
Filing date: 2022-07-13
Publication date: 2022-11-04
Anticipated expiration: 2032-07-13

Abstract

The embodiment of the application provides a refrigerant control box and a heat pump system, wherein the refrigerant control box comprises a box body, a box cover and a throttling pipeline assembly; the box body is provided with an opening; the box cover is hermetically covered on the box body to seal the opening; the throttling pipeline assembly is arranged in the box body and comprises a refrigerant pipeline with a first connector and a second connector and a throttling device arranged on the refrigerant pipeline, and the first connector and the second connector are communicated with the outside. The refrigerant control box of this application embodiment has better waterproof performance, is fit for installing outdoors.

Description

Refrigerant control box and heat pump system

Technical Field

The application relates to the technical field of heat pumps, in particular to a refrigerant control box and a heat pump system.

Background

In the related art, a heat pump floor heater is provided with a refrigerant control box, and refrigerant flowing out of an outdoor unit flows into a floor heating capillary tube for heat exchange after flow regulation is performed on the refrigerant through the refrigerant control box.

However, the refrigerant control box in the related art has poor safety performance, and generally can be installed indoors, but cannot be installed outdoors.

SUMMERY OF THE UTILITY MODEL

In view of this, the present disclosure is directed to a refrigerant control box and a heat pump system, so as to solve the technical problem in the related art that the refrigerant control box can only be installed indoors.

To achieve the above object, an embodiment of the present application provides a refrigerant control box, including:

a case having an opening;

the box cover is hermetically covered on the box body to seal the opening;

the throttling pipeline assembly is arranged in the box body and comprises a refrigerant pipeline with a first interface and a second interface and a throttling device arranged on the refrigerant pipeline, and the first interface and the second interface are communicated with the outside.

In one embodiment, the box cover is in sealing contact with an end face of the box body on the periphery side of the opening.

In one embodiment, the refrigerant control box includes a sealing member interposed between the box cover and an end surface of the box body on the opening circumferential side.

In one embodiment, the seal is a sealing cotton.

In one embodiment, the edge of the box body at the opening is folded outwards to form a water retaining edge.

In one embodiment, the case is provided with heat dissipation holes.

In one embodiment, a partial area of the sidewall of the box body protrudes outward to form the heat dissipation hole facing the bottom side of the refrigerant control box.

In one embodiment, the lid is pivotally connected to the body.

In one embodiment, the lid is in locking engagement with the body.

In one embodiment, the coolant control box includes a hanging lug, and the hanging lug is disposed outside the box body.

In one embodiment, the throttling device includes an electronic expansion valve, and the electronic expansion valve is reversely installed on the refrigerant pipeline.

Another embodiment of the present application provides a heat pump system, including outdoor unit, terminal and the aforesaid refrigerant control box, the refrigerant control box through the first interface with the outdoor unit intercommunication, through the second interface with terminal intercommunication.

The embodiment of the application provides a refrigerant control box and heat pump system, refrigerant control box include box body and lid, and the lid is established on the box body sealedly, from this, can prevent rivers such as rainwater from flowing into refrigerant control box from the opening part of box body betterly, when improving refrigerant control box's waterproof performance, has also improved refrigerant control box's security performance, and then can make refrigerant control box can install outdoors.

Drawings

Fig. 1 is a schematic structural diagram of a heat pump system according to an embodiment of the present application, in which a straight arrow beside a circulation loop indicates a flowing direction of a refrigerant, and a wall is also shown in the diagram;

fig. 2 is a schematic structural diagram of the refrigerant control box shown in fig. 1;

fig. 3 is a schematic structural view of another view angle of the refrigerant control box shown in fig. 2;

fig. 4 is a front view of the refrigerant control box shown in fig. 2 with a cover omitted;

FIG. 5 is a left side view of FIG. 4;

fig. 6 is a partially enlarged view of a portion a in fig. 5.

Description of the reference numerals

A refrigerant control box 10; a case 11; the opening 11a; an end face 11b; a water-retaining edge 11c; heat dissipation holes 11b; a box cover 12; a throttle pipe assembly 13; a refrigerant line 131; the first interface 131a; the second interface 131b; a throttle device 132; an electronic expansion valve 1321; an electronic control assembly 14; a hinge 15; a latch 16; a hanging lug 17; an outdoor unit 20; a tip 30; a circulation loop 40; a first branch pipe 41; a second branch pipe 42; a wall 50.

Detailed Description

In the description of the embodiments of the present application, it should be noted that the terms "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in fig. 2, and these orientation terms are only used for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus should not be construed as limiting the embodiments of the present application.

Referring to fig. 1 to 5, the refrigerant control box 10 includes a box body 11, a box cover 12, and a throttling pipeline assembly 13.

The case 11 has an opening 11a, the cover 12 is hermetically disposed on the case 11 to close the opening 11a, that is, the cover 12 is used to open or close the opening 11a on the case 11, and the cover 12 is hermetically connected to the case 11 when the cover 12 is in a closed state covering the case 11.

The throttling pipeline assembly 13 is disposed in the box 11, the throttling pipeline assembly 13 includes a refrigerant pipeline 131 having a first interface 131a and a second interface 131b, and a throttling device 132 disposed on the refrigerant pipeline 131, and the first interface 131a and the second interface 131b are communicated with the outside.

The throttling device 132 is used for adjusting the flow rate of the refrigerant flowing through the refrigerant pipeline 131, and the refrigerant may be freon, for example.

Referring to fig. 4, an electronic control assembly 14 is further disposed in the box body 11, and the electronic control assembly 14 is used for controlling the throttling pipeline assembly 13.

Referring to fig. 1, the heat pump system includes an outdoor unit 20, a terminal 30 and a refrigerant control box 10 according to any embodiment of the present disclosure, wherein the refrigerant control box 10 is communicated with the outdoor unit 20 through a first interface 131a and is communicated with the terminal 30 through a second interface 131 b.

The type of the tip 30 may be various, and exemplarily, the tip 30 shown in fig. 1 is a ground heating capillary tube, that is, the heat pump system shown in fig. 1 is a heat pump ground heating. The heat pump system shown in fig. 1 is provided with two floor heating capillaries, and it can be understood that the number of the floor heating capillaries is not limited, for example, the number of the floor heating capillaries may be one or more than two.

In some embodiments, the end 30 may also be an indoor unit, a hot water tank, or the like, that is, the heat pump system may also be a heat pump air conditioner, a heat pump water heater, or the like, or the end 30 may include at least two of a floor heating capillary tube, an indoor unit, and a hot water tank, that is, the heat pump system may be provided with a plurality of different types of ends 30, and the refrigerant may be delivered to the different types of ends 30 through the refrigerant control box 10.

Taking the heat pump system shown in fig. 1 as an example, the outdoor unit 20, the ground heating capillary tube and the refrigerant control box 10 are all disposed on the circulation loop 40 of the heat pump system, wherein the refrigerant pipeline 131 in the refrigerant control box 10 is connected to the circulation loop 40 through the first interface 131a and the second interface 131 b. Because the heat pump system shown in fig. 1 is provided with two ground heating capillary tubes, the circulation loop 40 is further provided with a first branch pipe 41 and a second branch pipe 42 to meet the installation requirements of the two ground heating capillary tubes.

Referring to fig. 1, two ground heating capillary tubes are respectively laid in different rooms, when heating, a refrigerant flowing out of the outdoor unit 20 flows along the circulation loop 40, and flows into the refrigerant pipeline 131 in the refrigerant control box 10 through the first interface 131a, after the flow of the refrigerant flowing into the refrigerant pipeline 131 is adjusted by the throttling device 132, the refrigerant flows out of the second interface 131b, and is conveyed into the two ground heating capillary tubes through the first branch pipe 41 for heat exchange, the refrigerant after heat exchange flows back to the outdoor unit 20 through the second branch pipe 42, and flows into the refrigerant control box 10 after heat exchange is performed in the outdoor unit 20, and thus heat exchange is performed in a circulating manner, so that heating of different rooms is realized.

In the related art, the refrigerant control box is simple in structure and poor in waterproof performance, and in order to prevent rainwater and other water flows from flowing into the refrigerant control box to damage components such as an electric control assembly, the refrigerant control box is generally installed indoors.

And refrigerant control box 10 of this application is to cover lid 12 and establish on box body 11 in a sealed manner, from this, can prevent rivers such as rainwater from flowing into refrigerant control box 10 from the opening 11a of box body 11 betterly, when improving refrigerant control box 10's waterproof performance, has also improved refrigerant control box 10's security performance, and then can make refrigerant control box 10 can install outdoors.

The refrigerant control box 10 shown in fig. 1 is installed on an outdoor wall 50, and it should be noted that the refrigerant control box 10 is not limited to be installed on the outdoor wall 50, and a specific installation position of the refrigerant control box 10 may be selected according to requirements such as cost budget and installation effect, and is not limited herein.

It is understood that the refrigerant control box 10 may be installed in the room.

In order to facilitate installation of the refrigerant control box 10, in an embodiment, referring to fig. 2 and 4, the refrigerant control box 10 may be provided with a hanging lug 17, the hanging lug 17 is disposed outside the box body 11, and the hanging lug 17 may be fixed to the box body 11 by a fastening member such as a rivet. The hanging lug 17 is used for penetrating a fastening member such as a screw when the refrigerant control box 10 is installed.

The number of the hanging lugs 17 is not limited, and for example, referring to fig. 2 and fig. 4, four hanging lugs 17 may be disposed outside the box body 11, and two hanging lugs 17 may be disposed on each of two opposite sides of the box body 11, so that the refrigerant control box 10 may be installed more firmly.

For convenience of manufacture and after-market maintenance, referring to fig. 2 and 3, in one embodiment, the cover 12 may be rotatably connected to the case 11, for example, the cover 12 may be connected to the case 11 by a hinge 15, that is, the cover 12 may be opened or closed by rotating relative to the case 11.

In order to firmly fix the lid 12 on the box 11, in an embodiment, referring to fig. 2, the lid 12 and the box 11 can also be locked, that is, the lid 12 is locked on the box 11 when the lid 12 is in a closed state, and then unlocked when the lid 12 needs to be opened.

For example, referring to fig. 2, a lock 16 may be disposed on the box cover 12, and when the box cover 12 is in a closed state, the lock 16 abuts against the box body 11 to achieve locking.

In some embodiments, the cover 12 may be detachably connected to the case 11, for example, the cover 12 may be fastened to the case 11 by a fastener such as a screw.

There are various ways for the lid 12 to be sealingly covered on the box 11, for example, the lid 12 can be sealingly contacted with the box 11, that is, when the lid 12 is in a closed state, the lid 12 is directly contacted with the box 11, and the contact surfaces of the two can be attached as much as possible. Alternatively, the box cover 12 and the box body 11 may be sealed by interposing a sealing member therebetween.

For example, referring to fig. 4, the box body 11 has an end surface 11b located on the peripheral side of the opening 11a, and the box cover 12 may be in sealing contact with the end surface 11b, or a sealing member may be interposed between the box cover 12 and the end surface 11b of the box body 11 located on the peripheral side of the opening 11 a.

The sealing element may be sealing cotton, such as rubber plastic cotton, PE (polyethylene foam) cotton, etc., which is relatively soft, and after the box cover 12 is covered on the box body 11, the box cover 12 and the box body 11 may compress the sealing cotton, thereby achieving a better sealing effect.

In some embodiments, the seal may be a sealing rubber ring.

In addition, the box cover 12 is not limited to sealing with the end surface 11b of the box body 11 around the opening 11a, and in some embodiments, the box cover 12 may also seal with other parts of the box body 11.

In one embodiment, referring to fig. 5 and 6, the edge of the box 11 at the opening 11a may be folded outward to form a water blocking edge 11c.

The water stop edge 11c may be provided with a certain inclination, for example, the water stop edge 11c may be turned 15 ° outward (i.e. the angle α shown in fig. 6 may be 15 °) to better prevent water flow into the box 11.

The water blocking edge 11c can block water flow from flowing into the box body 11, which is equivalent to the box cover 12 and the box body 11 being in sealing fit to form a first-level waterproof structure of the refrigerant control box 10, and the water blocking edge 11c forms a second-level waterproof structure of the refrigerant control box 10, so that the waterproof effect of the refrigerant control box 10 can be further improved.

In an embodiment, referring to fig. 2 to 5, the box body 11 may be provided with heat dissipation holes 11b for dissipating heat from the refrigerant control box 10.

As shown in fig. 2 to 5, for example, a partial region of the sidewall of the box body 11 protrudes outward to form the heat dissipation hole 11b facing the bottom side of the refrigerant control box 10, that is, after the heat in the box body 11 flows out from the heat dissipation hole 11b, the heat flows downward. The heat dissipation holes 11b can not only perform a better heat dissipation function, but also prevent water from flowing into the case 11 through the heat dissipation holes 11b as much as possible.

In some embodiments, the heat dissipation holes 11b may not be provided.

In one embodiment, referring to fig. 4, the throttling device 132 includes an electronic expansion valve 1321, and the electronic expansion valve 1321 is installed on the refrigerant pipeline 131 in a reverse direction, that is, the electronic expansion valve 1321 is installed in a manner opposite to a conventional manner (i.e., in a forward direction).

In the related art, the electronic expansion valve installed in the forward direction needs to be used in cooperation with the solenoid valve, but the solenoid valve generates certain noise due to repeated on-off in the process of controlling the electronic expansion valve.

In this embodiment, after the electronic expansion valve 1321 is reversely installed on the refrigerant pipeline 131, the electromagnetic valve is not needed, and the refrigerant can be prevented from flowing after the shutdown while the refrigerant can smoothly flow, so that noise generated by repeated on-off of the electromagnetic valve can be eliminated, and the production cost can be reduced.

In the description of the present application, reference to the description of the terms "an embodiment," "in some embodiments," "other embodiments," or "exemplary" 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 embodiments of the present application. In this application, 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. Moreover, various embodiments or examples and features of various embodiments or examples described herein may be combined by one skilled in the art without being mutually inconsistent.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A refrigerant control box, comprising:

a case having an opening;

the box cover is hermetically covered on the box body to seal the opening;

the throttling pipeline assembly is arranged in the box body and comprises a refrigerant pipeline with a first connector and a second connector and a throttling device arranged on the refrigerant pipeline, and the first connector and the second connector are communicated with the outside.

2. The refrigerant control box according to claim 1, wherein the box cover is in sealing contact with an end surface of the box body on the side of the opening; or the like, or, alternatively,

the refrigerant control box comprises a sealing element, and the sealing element is clamped between the box cover and the end face of the box body located on the peripheral side of the opening.

3. The refrigerant control box of claim 2, wherein the sealing element is a sealing cotton.

4. The refrigerant control box according to any one of claims 1 to 3, wherein an edge of the box body at the opening is folded outward to form a water blocking edge.

5. The refrigerant control box according to any one of claims 1 to 3, wherein the box body is provided with heat dissipation holes.

6. The refrigerant control box according to claim 5, wherein a portion of the sidewall of the box body protrudes outward to form the heat dissipation hole facing the bottom side of the refrigerant control box.

7. The refrigerant control box according to any one of claims 1 to 3, wherein the box cover is rotatably connected to the box body; and/or the presence of a gas in the atmosphere,

the box cover is matched with the box body in a locking mode.

8. The refrigerant control box according to any one of claims 1 to 3, wherein the refrigerant control box includes a hanging lug, and the hanging lug is disposed outside the box body.

9. A refrigerant control cassette according to any of claims 1-3, wherein the throttling device comprises an electronic expansion valve mounted in a reverse direction on the refrigerant line.

10. A heat pump system comprising an outdoor unit, a terminal, and the refrigerant control box according to any one of claims 1 to 9, wherein the refrigerant control box is in communication with the outdoor unit through the first port and in communication with the terminal through the second port.