Electrified heating four-disc fan coil unit and air conditioner

Abstract

The utility model provides a kind of four disc fan coil unit and air conditioner of electric heating, four disc fan coil unit of electric heating includes: mounting bracket, refrigeration component, heating component and fan.Funnel is formed on mounting bracket;Refrigeration component includes first water inlet, first water outlet and three refrigeration coil modules, three refrigeration coil modules are sequentially arranged along the ventilation direction of funnel;Heating component includes second water inlet, second water outlet, heating coil module and electric auxiliary heating module, heating coil module is in funnel, and electric auxiliary heating module is set in funnel;Fan is set at the air inlet of funnel.Relative to prior art, the four disc fan coil unit of electric heating of the utility model meets the refrigeration demand, and the heating function can meet the heating demand due to the cooperation of heating coil and electric auxiliary heating module, realize accurate temperature control, and user experience is good.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a four-disc fan coil unit with electric heating and an air conditioner. Background Technology

[0002] Currently, the demand for four-pipe (simultaneous cooling and heating throughout the year) air conditioning systems is increasing in public buildings, especially medical buildings. The characteristics of a four-pipe air conditioning system are that the cold source and heat source each have their own supply and return water pipes, providing chilled and hot water to the indoor unit's cold and hot coils. The cold and heat sources can be used simultaneously, and the indoor unit can be equipped with both cold and hot coils to achieve simultaneous cooling and heating. It can perform cooling and then heat treatment of the air to meet relative humidity requirements. Four-pipe systems are suitable for applications with high requirements for indoor air parameters.

[0003] To ensure cooling performance, current four-pipe air conditioning systems design more cold coils than hot coils, resulting in fewer hot coils and generally poor heating performance, failing to meet heating demands. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings and deficiencies in the existing technology and provide a four-disc fan coil unit with electric heating and an air conditioner.

[0005] One embodiment of this utility model provides a four-disc fan coil unit with electric heating, comprising:

[0006] Mounting frame, on which air ducts are formed;

[0007] A refrigeration assembly includes a first water inlet, a first water outlet, and three refrigeration coil modules. The three refrigeration coil modules are arranged sequentially along the ventilation direction of the air duct. Each refrigeration coil module has a first inlet and a first outlet. The first water inlet is connected to the first inlet of each of the three refrigeration coil modules, and the first water outlet is connected to the first outlet of each of the three refrigeration coil modules.

[0008] A heating component, comprising a second water inlet, a second water outlet, a heating coil module, and an electric auxiliary heating module, wherein the heating coil module is located within the air duct, and each heating coil module has a second inlet and a second outlet, the second inlet being connected to the second water inlet, and the electric auxiliary heating module being located within the air duct;

[0009] A fan is installed at the air inlet of the air duct.

[0010] In some alternative embodiments, a fixing frame is provided on one side of the mounting bracket, and the first water inlet, the first water outlet, the second water inlet, and the second water outlet are disposed on the fixing frame.

[0011] In some optional embodiments, at least one side of the first water inlet port, at least one side of the second water inlet port, at least one side of the first water outlet port, and at least one side of the second water outlet port are provided with mounting portions. The fixing frame is provided with four mounting ports. The first water inlet port, the second water inlet port, the first water outlet port, and the second water outlet port pass through the four mounting ports respectively and extend from the side of the fixing frame away from the mounting frame. The mounting portions are detachably connected to the fixing frame, and the fixing frame is detachably connected to the mounting frame.

[0012] In some alternative embodiments, the mounting bracket includes a fixed plate and two connecting plates, the two connecting plates being respectively disposed on both sides of the fixed plate. The connecting plates are detachably connected to the mounting bracket. The fixed plate is provided with the mounting opening, and the fixed plate is detachably connected to the mounting part.

[0013] In some optional embodiments, the cooling coil module includes a plurality of cooling pipes arranged sequentially in a direction perpendicular to the ventilation direction of the air duct, with the plurality of cooling pipes connected end to end in sequence. The end of the cooling pipe at the head end is provided with the first inlet, and the end of the cooling pipe at the tail end is provided with the first outlet.

[0014] In some optional embodiments, the heating coil module includes multiple heating tubes arranged sequentially in a direction perpendicular to the ventilation direction of the air duct, with the multiple heating tubes connected end to end in sequence. The end of the heating tube at the head end is provided with a second inlet, and the end of the heating tube at the tail end is provided with a second outlet.

[0015] In some alternative implementations, the cooling coil module, the heating coil module, and the electric auxiliary heating module are arranged sequentially along the ventilation direction of the air duct.

[0016] In some alternative implementations, the electric auxiliary heating module is a PTC electric heater.

[0017] In some alternative embodiments, the bottom of the mounting bracket is provided with a water receiving tray, and a drain outlet is provided on one side or at the bottom of the water receiving tray.

[0018] In some alternative embodiments, the fan includes two volutes, two impellers, and a motor. The two volutes are arranged side by side at the air inlet of the air duct. The impellers are rotatably disposed within the volutes. The motor is disposed between the two impellers and is drivenly connected to the two impellers.

[0019] Another embodiment of this utility model provides an air conditioner, including: a four-disc fan coil unit with electric heating as described above.

[0020] Compared with existing technologies, the electric heating four-coil fan coil unit of this utility model not only meets the cooling needs, but also meets the heating needs due to the cooperation of the heating coil and the electric auxiliary heating module, achieving precise temperature control and providing a good user experience.

[0021] To provide a clearer understanding of this invention, the specific embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a four-disc fan coil unit with electric heating according to an embodiment of the present invention.

[0023] Figure 2 This is a cross-sectional view of a four-disc fan coil unit with electric heating according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of one side of the electrically heated four-disc fan coil unit according to an embodiment of the present invention, with the hidden part of the structure.

[0025] Figure 4 This is a schematic diagram of the structure of a fixing frame according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of a fan according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Mounting bracket; 11. Air duct; 111. Water guide plate; 12. Fixing bracket; 121. Mounting port; 122. Fixing plate; 123. Connecting plate; 13. Water receiving tray; 131. Drain outlet; 21. First water inlet interface; 211. Mounting part; 22. First water outlet interface; 23. Cooling coil module; 231. First inlet; 232. First outlet; 233. Cooling pipe; 31. Second water inlet interface; 32. Second water outlet interface; 33. Heating coil module; 331. Second inlet; 332. Second outlet; 333. Heating pipe; 34. Electric auxiliary heating module; 40. Fan; 41. Volute; 42. Fan wheel; 43. Motor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] Please see Figures 1 to 3One embodiment of this utility model provides a four-coil air conditioning unit with electric heating, comprising: a mounting bracket 10, a refrigeration component, a heating component and a fan 40.

[0034] An air duct 11 is formed on the mounting bracket 10; the refrigeration component includes a first water inlet 21, a first water outlet 22, and three refrigeration coil modules 23. The three refrigeration coil modules 23 are arranged sequentially along the ventilation direction of the air duct 11. Each refrigeration coil module 23 has a first inlet 231 and a first outlet 232. The first water inlet 21 is connected to the first inlet 231 of each of the three refrigeration coil modules 23, and the first water outlet 22 is connected to the first outlet 232 of each of the three refrigeration coil modules 23. The heating component includes a second water inlet 31, a second water outlet 32, a heating coil module 33, and an electric auxiliary heating module 34. The heating coil module 33 is located inside the air duct 11. Each heating coil module 33 has a second inlet 331 and a second outlet 332. The second inlet 331 is connected to the second water inlet 31. The electric auxiliary heating module 34 is located inside the air duct 11. The fan 40 is located at the air inlet of the air duct 11.

[0035] The first water inlet 21 is used to connect to the cold water inlet pipe, the second water inlet 31 is used to connect to the hot water inlet pipe, the first water outlet 22 is used to connect to the cold water outlet pipe, and the second water outlet 32 ​​is used to connect to the hot water outlet pipe.

[0036] The working principle of a 40-coil electric heating four-disc blower according to an embodiment of the present invention is explained below:

[0037] When cooling is required, chilled water or other heat exchange medium enters from the first water inlet 21, then flows to each first inlet 231, and then enters each cooling coil module 23. Finally, it flows from the first outlet 232 to the first water outlet 22. At the same time, the fan 40 can be started to drive air into the air duct 11. The air exchanges heat with the chilled water or other heat exchange medium in the cooling coil module 23 to cool the air. The cooled air is then blown out of the room from the air duct 11 to cool the room.

[0038] Similarly, when heating is required, hot water or other heat exchange medium enters from the second inlet 31, flows to the second inlet 331, then into the heating coil module 33, and finally flows from the second outlet 332 to the second outlet 32. Simultaneously, the fan 40 can be activated to draw air into the air duct 11. The air exchanges heat with the hot water or other heat exchange medium in the heating coil module 33, heating the air. The heated air is then blown out of the room from the air duct 11, raising the room temperature. If the heating effect of the heating coil module 33 is insufficient, preventing the room from reaching the specified temperature, the electric auxiliary heating module 34 can be activated. The electric auxiliary heating module 34 assists in further heating the air in the air duct 11, allowing the air to rise to a suitable temperature and be blown into the room, thus ensuring the room temperature is precisely controlled to meet the heating requirements.

[0039] In some optional embodiments, a fixing frame 12 is provided on one side of the mounting bracket 10. The first water inlet 21, the first water outlet 22, the second water inlet 31, and the second water outlet 32 ​​are mounted on the fixing frame 12, which facilitates the fixing of the first water inlet 21, the first water outlet 22, the second water inlet 31, and the second water outlet 32, thereby improving the stability of the structure. It also helps to improve the stability of the connection between the cold water inlet pipe and the first water inlet 21, the cold water outlet pipe and the first water outlet 22, the hot water inlet pipe and the second water inlet 31, and the hot water outlet pipe and the second water outlet 32.

[0040] Please see Figure 4 To facilitate production assembly and subsequent disassembly and maintenance, in some optional embodiments, at least one side of the first water inlet 21, at least one side of the second water inlet 31, at least one side of the first water outlet 22, and at least one side of the second water outlet 32 ​​are provided with mounting parts 211. The fixing frame 12 is provided with four mounting ports 121. The first water inlet 21, the second water inlet 31, the first water outlet 22, and the second water outlet 32 ​​pass through the four mounting ports 121 respectively and extend from the side of the fixing frame 12 away from the mounting frame 10. The mounting parts 211 are detachably connected to the fixing frame 12, and the fixing frame 12 is detachably connected to the mounting frame 10. After the fixing frame 12 is disconnected from the mounting parts 211 and the mounting frame 10 respectively, the fixing frame 12 can be removed, and the first water inlet 21, the second water inlet 31, the first water outlet 22, and the second water outlet 32 ​​can be taken out from the mounting ports 121 respectively.

[0041] The mounting part 211 can be detachably connected to the fixing frame 12 through a snap-fit ​​structure, a locking pin structure, a threaded part structure, etc. The fixing frame 12 can be detachably connected to the mounting frame 10 through a snap-fit ​​structure, a locking pin structure, a threaded part structure, etc. In this embodiment, mounting parts 211 are provided on both sides of the first water inlet 21, both sides of the second water inlet 31, both sides of the first water outlet 22, and both sides of the second water outlet 32. The mounting parts 211 are locked to the fixing frame 12 through threaded parts.

[0042] In some optional embodiments, the mounting bracket 12 includes a fixing plate 122 and two connecting plates 123. The two connecting plates 123 are respectively disposed on both sides of the fixing plate 122. The connecting plates 123 are detachably connected to the mounting bracket 10. The fixing plate 122 is provided with a mounting opening 121 and is detachably connected to the mounting part 211. The fixing plate 122 covers part of the structure of the first water inlet interface 21, part of the structure of the second water inlet interface 31, part of the structure of the first water outlet interface 22, part of the structure of the second water outlet interface 32, the first inlet 231, the first outlet 232, the second inlet 331, and the second outlet 332, thus providing a certain degree of protection for the partial structures of the first water inlet interface 21, the second water inlet interface 31, the first water outlet interface 22, the second water outlet interface 32, the first inlet 231, the first outlet 232, the second inlet 331, and the second outlet 332. In this embodiment, the connecting plate 123 is locked to the mounting bracket 10 by a threaded fitting.

[0043] The specific structure of the cooling coil module 23 can be selected according to actual needs. For example, in some optional embodiments, the cooling coil module 23 includes multiple cooling pipes 233, which are arranged sequentially in a direction perpendicular to the ventilation direction of the air duct 11. The multiple cooling pipes 233 are connected end to end in sequence. The end of the cooling pipe 233 at the head end is provided with a first inlet 231, and the end of the cooling pipe 233 at the tail end is provided with a first outlet 232. Cold water or other heat exchange medium passes through the multiple cooling pipes 233 in sequence, and the cooling pipes 233 come into contact with the air, thereby realizing heat exchange between the cold water or other heat exchange medium and the air.

[0044] The specific structure of the heating coil module 33 can be selected according to actual needs. For example, in some optional embodiments, the heating coil module 33 includes multiple heating pipes 333, which are arranged sequentially in a direction perpendicular to the ventilation direction of the air duct 11. The multiple heating pipes 333 are connected end to end in sequence. The end of the heating pipe 333 at the head end is provided with a second inlet 331, and the end of the heating pipe 333 at the tail end is provided with a second outlet 332. Hot water or other heat exchange medium passes through the multiple heating pipes 333 in sequence, and the heating pipes 333 come into contact with the air, thereby realizing heat exchange between the hot water or other heat exchange medium and the air.

[0045] In some optional embodiments, the cooling coil module 23, the heating coil module 33, and the electric auxiliary heating module 34 are arranged sequentially along the ventilation direction of the air duct 11, with the cooling and heating positions located at different locations to facilitate the separate provision of cooling and heating functions. Especially during dehumidification, the air can first pass through the cooling coil module 23 to be cooled, and then pass through the heating coil module 33 to be heated, thereby forming condensate at the heating coil module 33 to achieve the purpose of dehumidification.

[0046] In some alternative embodiments, the electric auxiliary heating module 34 is a PTC electric heater. Of course, the structure of the electric auxiliary heating module 34 is not limited to this, and those skilled in the art can choose other suitable structures based on the teachings of this utility model. For example, the electric auxiliary heating module 34 can also be a resistance wire heating module, without being limited to this example.

[0047] When heating is required, condensation is easily generated when air exchanges heat with the heating coil module 33. Therefore, in some optional embodiments, a water collection tray 13 is provided at the bottom of the mounting bracket 10, and a drain outlet 131 is provided on one side or at the bottom of the water collection tray 13. The condensation can drip into the water collection tray 13 and then be discharged from the drain outlet 131.

[0048] Please see Figure 5 The specific structure of the fan 40 can be selected according to actual needs. For example, in some optional embodiments, the fan 40 includes two volutes 41, two impellers 42, and a motor 43. The two volutes 41 are arranged side by side at the air inlet of the air duct 11, and the impellers 42 are rotatably disposed inside the volutes 41. The motor 43 is disposed between the two impellers 42 and is driven by the two impellers 42. The motor 43 drives the two impellers 42 to rotate, thereby driving a large amount of air through the air duct 11, which is beneficial to meeting the demand for large air volume. The fan 40 in this embodiment is a centrifugal fan 40. Of course, the fan 40 can also adopt other suitable structures. For example, the fan 40 can also be a cross-flow or axial flow fan 40. The specific structure is well known to those skilled in the art and will not be described in detail here.

[0049] In some optional embodiments, two water guide plates 111 are also provided in the air duct 11. One water guide plate 111, the cooling coil module 23, the heating coil module 33 and the other water guide plate 111 are arranged in sequence along the ventilation direction of the air duct 11. The two water guide plates 111 gradually tilt downwards in the direction of approaching each other. Condensate falling on the water guide plate 111 can be guided by the water guide plate 111 to fall onto the water receiving tray 13.

[0050] The aforementioned electrically heated four-disc fan coil unit can be used in air conditioning, which includes: the aforementioned electrically heated four-disc fan coil unit.

[0051] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A four-disc fan coil unit with electric heating, characterized in that, include: Mounting frame, on which air ducts are formed; A refrigeration assembly includes a first water inlet, a first water outlet, and three refrigeration coil modules. The three refrigeration coil modules are arranged sequentially along the ventilation direction of the air duct. Each refrigeration coil module has a first inlet and a first outlet. The first water inlet is connected to the first inlet of each of the three refrigeration coil modules, and the first water outlet is connected to the first outlet of each of the three refrigeration coil modules. A heating component, comprising a second water inlet, a second water outlet, a heating coil module, and an electric auxiliary heating module, wherein the heating coil module is located within the air duct, and each heating coil module has a second inlet and a second outlet, the second inlet being connected to the second water inlet, and the electric auxiliary heating module being located within the air duct; A fan is installed at the air inlet of the air duct.

2. The four-disc fan coil unit with electric heating according to claim 1, characterized in that: A fixing frame is provided on one side of the mounting bracket, and the first water inlet, the first water outlet, the second water inlet, and the second water outlet are mounted on the fixing frame.

3. A four-disc fan coil unit with electric heating according to claim 2, characterized in that: At least one side of the first water inlet, at least one side of the second water inlet, at least one side of the first water outlet, and at least one side of the second water outlet are provided with mounting parts. The fixing frame is provided with four mounting ports. The first water inlet, the second water inlet, the first water outlet, and the second water outlet pass through the four mounting ports and extend from the side of the fixing frame away from the mounting frame. The mounting parts are detachably connected to the fixing frame, and the fixing frame is detachably connected to the mounting frame.

4. A four-disc fan coil unit with electric heating according to claim 3, characterized in that: The mounting bracket includes a fixed plate and two connecting plates, which are respectively disposed on both sides of the fixed plate. The connecting plates are detachably connected to the mounting bracket. The fixed plate is provided with the mounting opening and is detachably connected to the mounting part.

5. A four-disc fan coil unit with electric heating according to any one of claims 1 to 4, characterized in that: The refrigeration coil module includes multiple refrigeration pipes, which are arranged sequentially in a direction perpendicular to the ventilation direction of the air duct. The multiple refrigeration pipes are connected end to end in sequence. The first inlet is provided at the end of the refrigeration pipe at the beginning, and the first outlet is provided at the end of the refrigeration pipe at the end.

6. A four-disc fan coil unit with electric heating according to any one of claims 1 to 4, characterized in that: The heating coil module includes multiple heating tubes, which are arranged sequentially in a direction perpendicular to the ventilation direction of the air duct. The heating tubes are connected end to end in sequence. The end of the heating tube at the head end is provided with the second inlet, and the end of the heating tube at the tail end is provided with the second outlet.

7. A four-disc fan coil unit with electric heating according to any one of claims 1 to 4, characterized in that: The cooling coil module, the heating coil module, and the electric auxiliary heating module are arranged sequentially along the ventilation direction of the air duct.

8. A four-disc fan coil unit with electric heating according to any one of claims 1 to 4, characterized in that: The bottom of the mounting bracket is provided with a water receiving tray, and a drain outlet is provided on one side or at the bottom of the water receiving tray.

9. A four-disc fan coil unit with electric heating according to any one of claims 1 to 4, characterized in that: The fan includes two volutes, two impellers, and a motor. The two volutes are arranged side by side at the air inlet of the air duct. The impellers are rotatably mounted inside the volutes. The motor is located between the two impellers and is driven by the two impellers.

10. An air conditioner, characterized in that, include: A four-disc fan coil unit with electric heating as described in any one of claims 1 to 9.

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