Rear-mounted fan coil

Abstract

The rear-mounted fan coil comprises a machine body, the top wall of the machine body is communicated with an air inlet, an evaporator is arranged in the machine body, a water pan is arranged on the right side of the machine body and located below the water drainage end of the evaporator, an air feeder is fixedly connected into the machine body, and the air feeder is fixedly connected with the machine body. The air feeder is located below the evaporator, the bottom wall of the machine body communicates with an air supply opening, and a filtering unit is arranged at the top of the air inlet. By arranging the air feeder, when the machine works, the air feeder is started, certain negative pressure is generated, outdoor air is introduced into the machine body through the air inlet, is condensed through the evaporator, passes through the air feeder, cools the air feeder, and is fed into a designated area through the air supply outlet; therefore, the air blower has the advantages of high heat exchange efficiency, uniform air speed, reduced temperature of the air supply outlet and prolonged service life.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning and ventilation, in particular to a rear-mounted fan coil unit. Background Art

[0002] A fan coil unit, also known as a fan coil, is one of the terminal devices in an air conditioning system. It consists of a small fan, a motor, and a coil (an air heat exchanger). Chilled or hot water flows through the coil tubes, exchanging heat with the air outside the tubes, cooling, dehumidifying, or heating the air to regulate indoor air parameters. It is a commonly used terminal device for both cooling and heating.

[0003] The original product's fan is installed in front of the fins. The airflow near the motor outlet has a faster wind speed, and the strong wind blows directly on the fins. The fins have no time to cool the airflow and it is sent into the air supply duct, and the cold air is not fully exchanged. The wind speed drops more at the fin position farther away from the air outlet. Due to the slower wind speed, the airflow is over-cooled, resulting in overcooling and poor cooling of the front fan. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the purpose of the present invention is to provide a rear fan coil unit, which has the advantages of high heat exchange efficiency, increased heat exchange area and increased fan service life, and solves the problem of wind flow dispersion cooling reducing fan service life due to slow wind speed.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a rear-mounted fan coil unit, comprising a body, the top wall of the body being connected to an air inlet, an evaporator being arranged inside the body, a water receiving pan being arranged on the right side of the body, the water receiving pan being located below the drainage end of the evaporator, an air blower being fixedly connected to the inside of the body, the air blower being located below the evaporator, the bottom wall of the body being connected to an air supply port, and a filter unit being arranged on the top of the air inlet.

[0006] As a preferred embodiment of the present invention, the filter unit includes an air inlet ring arranged at the top of the air supply port, the bottom of the air inlet ring is fixedly connected to a connecting frame, the connecting frame is fitted with the inner wall of the air inlet, and the interior of the connecting frame is provided with a coarse sand net and a fine sand net in sequence from top to bottom.

[0007] As a preferred embodiment of the present invention, a HEPA filter is fixedly connected to the interior of the connecting frame, and the HEPA filter is located below the fine sand net.

[0008] As a preferred embodiment of the present invention, the interior of the connecting frame is fixedly connected to an air-water separation layer, and the air-water separation layer is located below the HEPA filter.

[0009] As a preferred embodiment of the present invention, the interior of the air inlet ring is provided with threads, and the air inlet ring is movably connected to the air inlet via the threads.

[0010] As a preferred embodiment of the present invention, a filter is fixedly connected to the interior of the air outlet.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The utility model sets a blower. When the machine is working, the blower starts to generate a certain negative pressure. The outdoor air is introduced into the machine body through the air inlet, condensed by the evaporator, passed through the blower, cooled by the blower, and then sent into the designated area through the air outlet. The advantages of high heat exchange efficiency, uniform wind speed, reduced temperature of the air outlet and increased service life of the blower can be achieved.

[0013] 2. The utility model sets a filter unit. When the gas comes in from the inside of the air inlet, it will pass through the coarse sand net and the fine sand net. The coarse sand net and the fine sand net will separate and intercept the dust and impurities in the gas, reducing the pollution of dust and impurities to the internal devices of the body while improving the cleanliness of the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a cross-sectional schematic diagram of the air supply outlet of the utility model.

[0016] In the figure: 1. Machine body; 2. Air inlet; 3. Evaporator; 4. Drain tray; 5. Blower; 6. Air outlet; 7. Filter unit; 71. Air inlet ring; 72. Connecting frame; 73. Coarse sand net; 74. Fine sand net; 8. HEPA filter; 9. Air-water separation layer; 10. Thread; 11. Filter. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] like Figures 1 to 2 As shown, the rear fan coil unit includes a body 1, the top wall of the body 1 is connected to the air inlet 2, the evaporator 3 is arranged inside the body 1, a water receiving tray 4 is arranged on the right side of the body 1, the water receiving tray 4 is located below the drainage end of the evaporator 3, the inside of the body 1 is fixedly connected to the air supply fan 5, the air supply fan 5 is located below the evaporator 3, the bottom wall of the body 1 is connected to the air supply port 6, and the top of the air inlet 2 is provided with a filter unit 7.

[0019] refer to Figure 2 The filter unit 7 includes an air inlet ring 71 arranged at the top of the air supply port 6. The bottom of the air inlet ring 71 is fixedly connected to a connecting frame 72. The connecting frame 72 is in contact with the inner wall of the air inlet 2. The interior of the connecting frame 72 is provided with a coarse sand net 73 and a fine sand net 74 from top to bottom.

[0020] As a technical optimization solution of the present invention, a filter unit 7 is provided. When the gas comes in from the inside of the air inlet 2, it will pass through the coarse sand net 73 and the fine sand net 74. The coarse sand net 73 and the fine sand net 74 will separate and intercept the dust and impurities in the gas, thereby reducing the pollution of dust and impurities to the internal devices of the body 1 and improving the cleanliness of the gas.

[0021] refer to Figure 2 The interior of the connecting frame 72 is fixedly connected to a HEPA filter 8 , and the HEPA filter 8 is located below the fine sand net 74 .

[0022] As a technical optimization solution of the present invention, by setting up a HEPA filter 8, the HEPA filter 8 can filter the dust and impurities remaining in the gas three times, thereby further improving the cleanliness of the gas.

[0023] refer to Figure 2 The interior of the connecting frame 72 is fixedly connected to the air-water separation layer 9, and the air-water separation layer 9 is located below the HEPA filter 8.

[0024] As a technical optimization solution of the present invention, by providing the gas-water separation layer 9, the gas-water separation layer 9 can intercept the moisture in the gas and reduce the dryness of the gas.

[0025] refer to Figure 2 A thread 10 is provided inside the air inlet ring 71 , and the air inlet ring 71 is movably connected to the air inlet 2 through the thread 10 .

[0026] As a technical optimization solution of the present invention, by providing the thread 10, later personnel can remove the air inlet ring 71 through the thread 10, thereby taking out the connecting frame 72, making it convenient for personnel to inspect and maintain the devices inside the connecting frame 72 later.

[0027] refer to Figure 1 A filter screen 11 is fixedly connected to the interior of the air outlet 6 .

[0028] As a technical optimization solution of the present invention, by providing the filter 11, not only can the air outlet 6 have the advantage of being dustproof, but also it can prevent people from accidentally touching the devices inside the body 1 later.

[0029] The working principle and usage process of the utility model are as follows: during daily use, personnel connect the air inlet 2 with the equipment. When the machine is working, the blower 5 is started to generate a certain negative pressure. The outdoor air is introduced into the body 1 through the air inlet 2, condensed by the evaporator 3, and then passed through the blower 5. After cooling the blower 5, it is sent into the designated area through the air outlet 6, which can achieve the advantages of high heat exchange efficiency, uniform wind speed, lowering the temperature of the air outlet 6 and increasing the service life of the blower 5, and the body 1 is composed of sheet metal or foamed polyurethane board.

[0030] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rear fan coil unit, comprising a body (1), characterized in that: The top wall of the machine body (1) is connected to an air inlet (2), an evaporator (3) is provided inside the machine body (1), a water receiving tray (4) is provided on the right side of the machine body (1), the water receiving tray (4) is located below the drainage end of the evaporator (3), a blower (5) is fixedly connected to the inside of the machine body (1), the blower (5) is located below the evaporator (3), the bottom wall of the machine body (1) is connected to an air supply port (6), and a filter unit (7) is provided on the top of the air inlet (2).

2. The rear fan coil unit according to claim 1, characterized in that: The filter unit (7) comprises an air inlet ring (71) arranged at the top of the air supply port (6); a connecting frame (72) is fixedly connected to the bottom of the air inlet ring (71); the connecting frame (72) is in contact with the inner wall of the air inlet port (2); and a coarse sand net (73) and a fine sand net (74) are sequentially arranged inside the connecting frame (72) from top to bottom.

3. The rear fan coil unit according to claim 2, characterized in that: A HEPA filter (8) is fixedly connected to the interior of the connecting frame (72), and the HEPA filter (8) is located below the fine sand net (74).

4. The rear fan coil unit according to claim 3, characterized in that: The interior of the connecting frame (72) is fixedly connected to the air-water separation layer (9), and the air-water separation layer (9) is located below the HEPA filter (8).

5. The rear fan coil unit according to claim 4, characterized in that: The air inlet ring (71) is provided with a thread (10) inside, and the air inlet ring (71) is movably connected to the air inlet (2) via the thread (10).

6. The rear fan coil unit according to claim 1, characterized in that: A filter screen (11) is fixedly connected to the interior of the air supply port (6).

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