Duct type air conditioner

Abstract

The utility model relates to the technical field of air conditioners, in particular to a duct type air conditioner, and aims to solve the problem that a refrigerant detector in existing air conditioning equipment is inconvenient to disassemble. In order to achieve the purpose, the duct type air conditioner comprises a shell, and a side wall is arranged at one end, in the first direction, of the shell; the heat exchanger assembly is arranged in the shell, and a circulation space is formed between the heat exchanger assembly and the side wall; a part of the air pipe is located in the circulation space; and the refrigerant detector is arranged in the circulation space. The refrigerant detector is arranged in the circulation space between the heat exchanger assembly and the side wall, no matter whether the fan is started or not, the refrigerant detector can detect the refrigerant within the set time, and the accuracy and timeliness of detection are guaranteed; meanwhile, as the refrigerant detector is close to the side wall, compared with the mounting position of the previous refrigerant detector, the position of the refrigerant detector is convenient to disassemble, and later maintenance and replacement are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, and specifically provides a duct air conditioner. Background Art

[0002] Refrigerant is used to transfer heat energy and produce a refrigeration effect in refrigeration and air conditioning systems. Refrigerant is an intermediate substance in the refrigeration process. It first receives the coldness of the refrigerant and cools down, and then cools other cooled substances. We call this intermediate substance a refrigerant. Refrigerants include gas refrigerants, liquids and solid refrigerants. The refrigerants used in multi-split units are gas refrigerants, including R32, R410A, R22, etc., of which R32 is a flammable gas. It has a wide combustion range, so corresponding safety measures must be taken during handling, storage and use. When the concentration of R32 in the air exceeds a certain limit, a flammable mixture may be formed. Since R32 is a flammable gas, any gas leakage may cause a fire or explosion. When installing and maintaining the refrigeration system, the sealing of the system must be ensured. If the refrigerant leaks, the indoor or outdoor unit of the air conditioner needs to detect it within the specified time and alarm.

[0003] A refrigerant detector is used during the detection process. Since the uncertainty of the leakage point and the fan opening state will affect the refrigerant concentration at different locations, the installation position of the refrigerant detector will affect the timeliness and accuracy of the measurement; in addition, the detector has a service life and needs to be replaced regularly. Since there are many welded joints in the air conditioner indoor unit, there is a risk of leakage at the pipe welding points, so the refrigerant detector is generally installed at the pipe welding points. However, the pipe welding points are inside the air conditioner, and it is not convenient to disassemble the refrigerant detector at this location, which brings certain difficulties to replacing the detector.

[0004] Accordingly, the art needs a new technical solution to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the above technical problem, that is, to solve the problem that the refrigerant detector in the existing air conditioning equipment is inconvenient to disassemble. To this end, the utility model provides a duct air conditioner, which includes: a shell, one end of the shell along a first direction is provided with a side wall; a heat exchanger assembly, the heat exchanger assembly is arranged in the shell, and a circulation space is formed between the heat exchanger assembly and the side wall; an air pipe, a part of the air pipe is located in the circulation space; and a refrigerant detector, the refrigerant detector is arranged in the circulation space.

[0006] In the above specific implementation of the duct air conditioner, the refrigerant detector is arranged on a side of the side wall close to the heat exchanger assembly.

[0007] In the above-mentioned specific embodiment of the air duct machine, the side wall includes a side wall body and an inlet and outlet liquid maintenance plate, the side wall body has a placement opening, the inlet and outlet liquid maintenance plate is arranged on the side of the placement opening away from the heat exchanger assembly along the first direction, the edge of the inlet and outlet liquid maintenance plate overlaps the edge of the placement opening, and the inlet and outlet liquid maintenance plate covers the placement opening.

[0008] In the above-mentioned specific implementation of the air duct machine, the refrigerant detector is arranged on a side of the inlet and outlet liquid maintenance plate close to the heat exchanger assembly.

[0009] In the above-mentioned specific implementation of the air duct machine, the inlet and outlet liquid protection plates are connected to the side wall body by bolts.

[0010] In the above-mentioned specific embodiment of the air duct machine, a first bolt hole is provided on the edge of the side wall body close to the placement port; a second bolt hole is provided on the edge of the inlet and outlet liquid maintenance plate, and the bolt passes through the first bolt hole and the second bolt hole to connect the side wall body and the inlet and outlet liquid maintenance plate together.

[0011] In the above specific implementation of the air duct machine, the air duct machine further includes: a gasket, which is arranged on the inlet and outlet liquid maintenance plate.

[0012] In the above-mentioned specific embodiment with the air duct machine, the gasket covers the surface of the inlet and outlet liquid protection plate facing the heat exchanger assembly.

[0013] In the above-mentioned specific embodiment of the duct machine, the gasket is arranged between the inlet and outlet liquid maintenance plate and the refrigerant detector.

[0014] In the above specific implementation of the duct machine, the cushion is made of foam material.

[0015] Under the condition of adopting the above technical scheme, in order to solve the problem that the refrigerant detector in the prior art is difficult to disassemble, the refrigerant detector is arranged in the circulation space between the heat exchanger assembly and the side wall in the utility model. The circulation space is an area where airflow circulates. During the refrigerant leakage process, whether the fan is turned on or not, the refrigerant detector can detect the refrigerant within the specified time, thereby ensuring the accuracy and timeliness of the detection, and avoiding the problem that the refrigerant detector cannot detect the refrigerant leakage or the detection time is timed out due to the inappropriate installation position of the refrigerant detector; at the same time, since the refrigerant detector is close to the side wall, compared with the previous setting of the refrigerant detector at the pipeline welding point, the setting position of the refrigerant detector in the utility model is convenient for disassembly, and convenient for later maintenance and replacement, thereby improving the accuracy and safety of the duct machine leakage detection and ensuring the safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram of the overall structure of the wind pipe machine in the utility model;

[0018] Figure 2 It is a structural schematic diagram of a certain viewing angle of the wind pipe machine in the utility model;

[0019] Figure 3 It is a front view of the utility model after the liquid inlet and outlet plates, the liner and the refrigerant detector are arranged together;

[0020] Figure 4 It is a side view of the utility model after the liquid inlet and outlet plates, the liner and the refrigerant detector are arranged together;

[0021] Figure 5 It is a structural schematic diagram of the side wall in the utility model.

[0022] In the figure: 1. Shell, 2. Side wall, 3. Heat exchanger assembly, 4. Refrigerant detector, 5. Side wall body, 6. Inlet and outlet liquid maintenance plate, 7. Placement port, 8. Gasket, 9. Fan, 10. Circulation space, 11. Air pipe. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the protection scope of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0024] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the relevant devices or components must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, ordinal numbers such as "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0025] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Furthermore, in order to more clearly demonstrate the core technical solution of the present invention, the description of the well-known structure of the duct unit is omitted in the following description. However, this omission is only for the convenience of description and does not mean that the duct unit can be without these structures.

[0027] like Figure 1-5 As shown, the utility model proposes a duct machine, comprising: a housing 1, a side wall 2 is arranged at one end of the housing 1 along a first direction; the first direction is the length direction of the duct machine, indicated by X in the figure, and the second direction is the width direction of the duct machine, indicated by Y in the figure. A heat exchanger assembly 3, the heat exchanger assembly 3 is arranged in the housing 1, and a circulation space 10 is formed between the heat exchanger assembly 3 and the side wall 2; the heat exchanger assembly 3 is arranged behind the fan 9 along the second direction; an air pipe 11, a part of the air pipe 11 is located in the circulation space 10; a refrigerant detector 4, the refrigerant detector 4 is arranged in the circulation space 10.

[0028] The refrigerant detector 4 (refrigerant leak detector) is a device used to detect coolant leakage, and its principle mainly includes physical principle and chemical principle. The physical principle is to detect refrigerant leakage through the change of gas concentration caused by refrigerant leakage, while the chemical principle is to detect refrigerant leakage through chemical reaction between refrigerant and reagent. The refrigerant detector 4 can also be combined with auxiliary means such as sound / vibration and infrared for detection.

[0029] It should be pointed out that the utility model does not limit the type of refrigerant detector 4. Without deviating from the basic principles of the utility model, technical personnel in this field can adopt refrigerant detector 4 of any type and specification, as long as refrigerant detection can be performed, which does not deviate from the principles of the utility model and therefore will fall within the protection scope of the utility model.

[0030] In this embodiment, in order to solve the problem that the refrigerant detector in the prior art is difficult to disassemble, the refrigerant detector 4 is arranged in the circulation space 10 between the heat exchanger assembly 3 and the side wall 2 in the utility model. The air pipe 11 is prone to refrigerant leakage. When the fan 9 is turned on, the circulation space 10 is an area where airflow flows. During the refrigerant leakage process, the refrigerant detector 4 can perform refrigerant leakage detection on the airflow flowing into the circulation space 10 within a specified time; when the fan 9 is not turned on, the shell 1 is a closed space, and the gas therein will diffuse, so the refrigerant detector 4 can also perform refrigerant leakage detection on the airflow in the circulation space 10. In addition, since the air pipe 11 and the refrigerant detector 4 are both arranged in the circulation space 10, if the air pipe 11 leaks, the refrigerant in the air pipe 11 will quickly diffuse to the position of the refrigerant detector 4 after the leak, thereby ensuring the timeliness of the detection of the refrigerant detector 4 and avoiding the problem that the refrigerant detector 4 cannot detect the refrigerant leakage or the detection time is timed out due to the inappropriate installation position of the refrigerant detector 4; and since the air pipe 11 is close to the refrigerant detector 4, the greater the refrigerant concentration when the refrigerant diffuses to the position of the refrigerant detector 4 after the leak, the more accurate the detection effect of the refrigerant detector 4 will be, thereby avoiding the situation where the leakage is not detected due to the refrigerant concentration at the position of the refrigerant detector 4 being too small, and avoiding fire or explosion caused by missed detection.

[0031] At the same time, since the refrigerant detector 4 is close to the side wall 2, compared with setting the refrigerant detector 4 at the pipeline welding point, the setting position of the refrigerant detector 4 in the utility model is convenient for disassembly, later maintenance and replacement, thereby improving the accuracy and safety of the duct machine's leakage detection and ensuring the safety of users.

[0032] Further, if Figure 1-2 As shown, in order to facilitate disassembly, the refrigerant detector 4 is arranged on the side of the side wall 2 close to the heat exchanger assembly 3; when the refrigerant detector 4 needs to be inspected and maintained, the corresponding side wall 2 is first removed, and the difficulty of disassembling the side wall 2 is less than the difficulty of disassembling the internal components of the air conditioner; after removing the side wall 2, the refrigerant detector 4 can be removed from the side wall 2. After removing the side wall 2, there is no obstruction on the side of the side wall 2 where the refrigerant detector 4 is installed, so it is convenient to disassemble and replace the refrigerant detector 4.

[0033] It should be pointed out that the connection method between the side wall 2 and the refrigerant detector 4 is not limited in the utility model. The side wall 2 and the refrigerant detector 4 can be bolted. Without deviating from the basic principle of the utility model, those skilled in the art can adopt any connection method other than bolting, as long as the refrigerant detector 4 can be set on the side wall 2, such as clamping or bonding. These do not deviate from the principle of the utility model, and therefore will fall within the protection scope of the utility model. Of course, in this embodiment, it is preferred that the side wall 2 and the refrigerant detector 4 are bolted.

[0034] Further, if Figure 5 As shown, the side wall 2 is composed of two parts, namely: a side wall body 5 and an inlet and outlet liquid maintenance plate 6. The side wall body 5 has a placement opening 7. The inlet and outlet liquid maintenance plate 6 is arranged on the side of the placement opening 7 away from the heat exchanger assembly 3 along the first direction. The edge of the inlet and outlet liquid maintenance plate 6 overlaps with the edge of the placement opening 7, and the inlet and outlet liquid maintenance plate 6 covers the placement opening 7.

[0035] like Figure 2-5 As shown, the liquid inlet and outlet maintenance plate 6 is connected to the side wall body 5 by bolts. A first bolt hole is provided at the edge of the placement opening 7, and a second bolt hole is provided at the edge of the liquid inlet and outlet maintenance plate 6. Bolts pass through the first bolt hole and the second bolt hole to connect the side wall body 5 and the liquid inlet and outlet maintenance plate 6 together, so that the edge of the liquid inlet and outlet maintenance plate 6 overlaps the edge of the placement opening 7 and the liquid inlet and outlet maintenance plate 6 covers the placement opening 7. When disassembling, the liquid inlet and outlet maintenance plate 6 can be removed from the side wall body 5 by simply removing the bolts.

[0036] There is no limit on the number of bolts. Figure 5 The number of the first bolt hole and the second bolt hole are both 4, and the number of bolts is also 4, but this is not a limitation of the present invention. Technical personnel in this field can adjust the number and arrangement of the bolts according to actual conditions, as long as the inlet and outlet liquid maintenance plate 6 can be set on the side wall body 5. This does not deviate from the principle of the present invention and will therefore fall within the protection scope of the present invention.

[0037] It should be pointed out that although the utility model indicates that the liquid inlet and outlet maintenance plate 6 and the side wall body 5 are connected by bolts, the connection method between the liquid inlet and outlet maintenance plate 6 and the side wall body 5 is not limited to bolt connection. Without deviating from the basic principle of the utility model, those skilled in the art can adopt other connection methods besides bolt connection, as long as the liquid inlet and outlet maintenance plate 6 can be set on the side wall body 5, such as clamping or bonding. These do not deviate from the principle of the utility model, and therefore will fall within the protection scope of the utility model. Of course, in this embodiment, it is preferred that the liquid inlet and outlet maintenance plate 6 and the side wall body 5 are connected by bolts.

[0038] Further, if Figure 1As shown, in order to more conveniently disassemble the refrigerant detector 4, the refrigerant detector 4 is arranged on the side of the inlet and outlet liquid maintenance plate 6 close to the heat exchanger assembly 3. The size of the inlet and outlet liquid maintenance plate 6 is relatively small, and it is more convenient to disassemble only the inlet and outlet liquid maintenance plate 6 than to disassemble the entire side wall. Moreover, since the inlet and outlet liquid maintenance plate 6 is arranged on the side of the placement port 7 away from the heat exchanger assembly 3 along the first direction, after the first connecting bolt is removed, the inlet and outlet liquid maintenance plate 6 can be taken out along the first direction to the side away from the heat exchanger assembly 3, and the disassembly is very convenient. After the inlet and outlet liquid maintenance plate 6 is removed from the duct machine, the refrigerant detector 4 is also removed along the inlet and outlet liquid maintenance plate 6.

[0039] Further, if Figure 1-4 As shown, in order to keep the inside of the air duct machine warm, the air duct machine also includes: a gasket 8, which is arranged on the inlet and outlet liquid maintenance plate 6.

[0040] It should be pointed out that the utility model does not limit the connection method between the gasket 8 and the inlet and outlet liquid maintenance plate 6. The gasket 8 and the inlet and outlet liquid maintenance plate 6 can be connected by screws. Without deviating from the basic principle of the utility model, those skilled in the art can adopt any connection method other than screw connection, as long as the gasket 8 can be set on the inlet and outlet liquid maintenance plate 6, such as clamping or bonding. These do not deviate from the principle of the utility model and therefore fall within the scope of protection of the utility model. Of course, in this solution, it is preferred that the gasket 8 and the inlet and outlet liquid maintenance plate 6 can be connected by screws.

[0041] Furthermore, in order to improve the heat preservation effect of the gasket 8, the gasket 8 covers the surface of the inlet and outlet liquid barrier plate 6 facing the heat exchanger assembly 3.

[0042] Furthermore, in order not to affect the timeliness and accuracy of the detection of the refrigerant detector 4, the gasket 8 is arranged between the inlet and outlet liquid maintenance plate 6 and the refrigerant detector 4, so that the refrigerant detector 4 can detect whether there is a refrigerant leakage in the air flow in the area, and will not affect the thermal insulation effect of the gasket 8.

[0043] It should be pointed out that the utility model does not limit the connection method between the refrigerant detector 4 and the gasket 8. The gasket 8 and the liquid inlet and outlet plate 6 can be snap-connected. Without deviating from the basic principles of the utility model, technical personnel in this field can adopt other connection methods besides snap-connection, as long as the gasket 8 can be set on the liquid inlet and outlet plate 6, such as bonding, etc. This does not deviate from the principles of the utility model, and therefore will fall within the protection scope of the utility model.

[0044] Furthermore, the pad 8 is made of foam material. It should be noted that there are many types of foam insulation materials, and the present invention does not limit the specific types of foam. Those skilled in the art can choose a suitable type from the perspectives of cost and durability.

[0045] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims of the present application, any one of the claimed embodiments may be used in any combination.

[0046] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A duct machine, characterized in that: include: A shell (1), wherein one end of the shell (1) along a first direction is provided with a side wall (2); A heat exchanger assembly (3), the heat exchanger assembly (3) being arranged in the shell (1), and a flow space (10) being formed between the heat exchanger assembly (3) and the side wall (2); an air pipe (11), a portion of which is located in the circulation space (10); A refrigerant detector (4), wherein the refrigerant detector (4) is arranged in the circulation space (10).

2. The air duct machine according to claim 1, characterized in that: The refrigerant detector (4) is arranged on a side of the side wall (2) close to the heat exchanger assembly (3).

3. The air duct machine according to claim 2, characterized in that: The side wall (2) comprises a side wall body (5) and a liquid inlet and outlet plate (6), the side wall body (5) having a placement opening (7), the liquid inlet and outlet plate (6) being arranged along a first direction on a side of the placement opening (7) away from the heat exchanger assembly (3), the edge of the liquid inlet and outlet plate (6) overlapping the edge of the placement opening (7), and the liquid inlet and outlet plate (6) covering the placement opening (7).

4. The air duct machine according to claim 3, characterized in that: The refrigerant detector (4) is arranged on a side of the inlet and outlet liquid protection plate (6) close to the heat exchanger assembly (3).

5. The air duct machine according to claim 4, characterized in that: The liquid inlet and outlet plates (6) are connected to the side wall body (5) via bolts.

6. The air duct machine according to claim 5, characterized in that: A first bolt hole is provided on the side wall body (5) at an edge close to the placement opening (7); A second bolt hole is provided at the edge of the liquid inlet and outlet maintenance plate (6), and the bolt passes through the first bolt hole and the second bolt hole to connect the side wall body (5) and the liquid inlet and outlet maintenance plate (6) together.

7. The air duct machine according to claim 4, characterized in that: The air duct machine also includes: A gasket (8), wherein the gasket (8) is arranged on the liquid inlet and outlet plates (6).

8. The air duct machine according to claim 7, characterized in that: The gasket (8) covers the side of the inlet and outlet liquid plate (6) facing the heat exchanger assembly (3).

9. The air duct machine according to claim 8, characterized in that: The gasket (8) is arranged between the liquid inlet and outlet plate (6) and the refrigerant detector (4).

10. The air duct machine according to claim 7, characterized in that: The cushion (8) is made of foam material.

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