A temperature and humidity independently controlled fresh air machine

Abstract

The utility model relates to a kind of new fan of temperature and humidity independent control.It solves the problem that fan is difficult to carry out deep dehumidification in prior art, and dehumidification is prone to cause the problem of low temperature of fresh air.It includes a fan box, and fan box is provided with exhaust cavity and fresh air cavity, exhaust cavity is provided with heat exchange core, exhaust cavity one end is provided with dehumidification temperature regulating cavity, and dehumidification temperature regulating cavity is provided with dehumidification temperature regulating assembly, fresh air cavity one end is provided with exhaust structure and air inlet structure separated from each other, fresh air cavity is provided with fresh air outlet channel and exhaust air inlet channel separated from each other, and exhaust cavity is provided with on-off control assembly for switching inside and outside circulation.The utility model has the advantages of realizing deep dehumidification, and can accurately control the temperature of fresh air.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, specifically to a new type of fan with independent temperature and humidity control. Background Technology

[0002] A dehumidifying fresh air system is an effective air purification device. It works by drawing in fresh air from the outside, removing dust and dehumidifying it, and then sending it indoors through a fan. When it enters the indoor space, it replaces the original indoor air, ensuring that the room is always filled with fresh and clean air.

[0003] Currently, in the use of traditional adsorption-type dehumidification fresh air systems, the efficiency of condensation dehumidification is limited by the power of the cooling system in high humidity environments, making it difficult to quickly reduce indoor humidity. During the plum rain season in southern China, indoor humidity often reaches 80%-90%RH, which may take a long time to reduce the humidity to a comfortable range (40%-60%RH). Furthermore, adsorption dehumidification methods suffer from rapid adsorbent saturation, and frequent adsorbent replacement increases operating costs and maintenance workload. In addition, existing fans usually use high-temperature water for dehumidification, which cannot achieve deep dehumidification, and dehumidification often results in low fresh air temperature.

[0004] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a novel dehumidifying fresh air unit and its dehumidification method [CN202510586169.8]. It includes a dehumidifying fan body, whose external front frame is enclosed by transparent protective glass. An ultrasonic generator is installed near the evaporator surface inside the dehumidifying fan body. With the cooperation of a focusing adjustment component, when data collected by high-precision humidity, temperature, and air quality sensors is fed back to the fuzzy processor, and the indoor humidity exceeds the threshold, the fuzzy processor activates the photocatalytic-adsorption synergistic working mode, causing the focusing adjustment component to start working. This enables the overall self-cleaning reflector to be adjusted at multiple angles with high precision, accurately focusing light according to actual needs, accelerating the regeneration of the adsorbent in the adsorption module, improving adsorption efficiency, and thus more efficiently removing moisture and harmful gases from the air. It can also improve indoor environmental quality in a high-efficiency time, avoid unnecessary energy consumption, and reduce operating costs.

[0005] The above solution has solved to some extent the problems of existing technologies where fan dehumidification methods are difficult to quickly reduce indoor humidity and require frequent replacement of adsorbents. However, the solution still has many shortcomings, such as the inability to perform deep dehumidification and the tendency for fresh air temperature to be low after dehumidification. Summary of the Invention

[0006] The purpose of this invention is to address the above-mentioned problems by providing a fresh air system with independent temperature and humidity control.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a fresh air fan with independent temperature and humidity control, comprising a fan housing, wherein an exhaust chamber and a fresh air chamber are provided inside the fan housing, a heat exchange core is provided inside the exhaust chamber, a dehumidification and temperature regulation chamber is provided at one end of the exhaust chamber, and a dehumidification and temperature regulation component is provided inside the dehumidification and temperature regulation chamber, and a separate exhaust structure and an air inlet structure are provided at one end of the fresh air chamber, a separate fresh air outlet channel and an exhaust air inlet channel are provided inside the fresh air chamber, and an opening and closing control component for switching between internal and external circulation is provided inside the exhaust chamber.

[0008] In the aforementioned fresh air unit with independent temperature and humidity control, a first separation partition is provided inside the fresh air cavity. The upper end of the first separation partition forms an exhaust air inlet channel and the lower end forms a fresh air outlet channel. One end of the fan housing is provided with an exhaust air inlet hole that communicates with the exhaust air inlet channel, and the lower end of the exhaust air inlet hole is provided with a fresh air outlet hole that communicates with the fresh air outlet channel.

[0009] In the aforementioned type of fresh air unit with independent temperature and humidity control, the end of the fresh air outlet channel away from the fresh air outlet is connected to a fresh air guide cavity, and a fresh air intake fan is installed inside the fresh air guide cavity; an exhaust air intake filter is installed inside the exhaust air intake channel, and one end of the exhaust air intake channel is connected to the exhaust air guide cavity located on one side of the heat exchange core.

[0010] In the aforementioned type of fresh air unit with independent temperature and humidity control, the air intake structure includes a fresh air intake chamber located within the exhaust chamber, and a fresh air intake filter is installed inside the fresh air intake chamber. One end of the fan housing is provided with a fresh air intake hole that communicates with the fresh air intake chamber.

[0011] In the above-mentioned fresh air unit with independent temperature and humidity control, the exhaust structure includes an exhaust outlet located on one side of the fresh air inlet, the exhaust outlet being connected to the exhaust outlet cavity located on one side of the fresh air inlet cavity, and the exhaust outlet cavity and the fresh air inlet cavity being separated by a second separation partition, and an exhaust fan is installed in the exhaust outlet cavity.

[0012] In the aforementioned type of fresh air unit with independent temperature and humidity control, the opening and closing control component includes a third separation partition disposed on one side of the heat exchange core. An air inlet filter is disposed on one side of the third separation partition, and an air inlet cavity is formed between the fresh air inlet filter and the third separation partition. An annular air guide port for connecting the air inlet cavity and the exhaust air outlet cavity is disposed on the third separation partition, and a rotating annular air guide plate controlled by the control module is disposed inside the annular air guide port.

[0013] In the aforementioned fresh air unit with independent temperature and humidity control, the control module is connected to several temperature sensors, which are respectively installed in the fresh air inlet cavity, the air intake cavity, and the fresh air guide cavity to detect the temperature.

[0014] In the aforementioned fresh air unit with independent temperature and humidity control, the dehumidification and temperature control component is installed in the evaporator inside the dehumidification and temperature control chamber. The dehumidification and temperature control chamber is equipped with a pre-cooling regulating pipe and an outlet air temperature regulating pipe. The pre-cooling regulating pipe is equipped with a first proportional regulating valve, and the outlet air temperature regulating pipe is equipped with a second proportional regulating valve.

[0015] In the aforementioned fresh air unit with independent temperature and humidity control, one end of the pre-cooling regulating pipe and the outlet air temperature regulating pipe are connected to each other and connected to the water inlet pipe located outside the fan housing, while the other end of the pre-cooling regulating pipe is connected to the water return pipe located outside the fan housing.

[0016] In the aforementioned type of fresh air unit with independent temperature and humidity control, the dehumidification and temperature control chamber has an air inlet at one end near the air inlet filter, and an air outlet at one end near the fresh air guide chamber. A temperature control pipe connected to the outlet temperature control pipe is provided inside the dehumidification and temperature control chamber and on the side near the air outlet.

[0017] Compared with the existing technology, the advantages of this utility model are as follows: the fresh air adopts a method of pre-cooling, evaporation, condensation, and temperature adjustment to achieve independent temperature and humidity control when the fresh air is introduced. Combined with the first proportional regulating valve and the second intelligent temperature control, it achieves deep dehumidification and precise temperature control. Furthermore, the fresh air and exhaust channels are separated to avoid cross-contamination. Combined with multiple filter elements, it ensures clean air. Secondly, it has an internal and external circulation switching function to flexibly adapt to different environments. At the same time, it performs dehumidification first and then temperature adjustment to ensure the intake air temperature. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the fan housing in this utility model; Figure 3 This is a schematic diagram of the bottom structure of the fan housing in this utility model; Figure 4 This is a schematic diagram of the fresh air and exhaust air flow directions in this utility model; In the diagram: Exhaust chamber 1, Fresh air chamber 2, Fresh air outlet duct 21, Fresh air outlet 211, Fresh air guide chamber 212, Fresh air intake fan 213, Exhaust air inlet duct 22, Exhaust air inlet 221, Exhaust air inlet filter 222, Exhaust air guide chamber 223, First separation partition 23, Heat exchange core 3, Dehumidification and temperature control chamber 4, Air inlet 41, Air outlet 42, Temperature control pipe 43, Dehumidification and temperature control assembly 5, Evaporator 51, Pre-cooling regulating pipe 52, Outlet air temperature regulating pipe 53, First proportional regulating valve 54. Second proportional regulating valve; 55. Water inlet pipe; 56. Water return pipe; 57. Exhaust structure; 6. Exhaust outlet hole; 61. Exhaust outlet cavity; 62. Second separation partition; 63. Exhaust fan; 64. Air inlet structure; 7. Fresh air inlet cavity; 71. Fresh air inlet filter; 72. Fresh air inlet hole; 73. Opening and closing control assembly; 8. Third separation partition; 81. Fresh air inlet filter; 82. Air inlet cavity; 83. Annular air guide; 84. Rotating annular air guide plate; 85. Control module; 9. Temperature sensor; 91. Fan housing; 92. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1-4 As shown, a fresh air unit with independent temperature and humidity control includes a fan housing 92. The fan housing 92 is provided with an exhaust chamber 1 and a fresh air chamber 2. The exhaust chamber 1 is provided with a heat exchange core 3. One end of the exhaust chamber 1 is provided with a dehumidification and temperature regulation chamber 4, and the dehumidification and temperature regulation chamber 4 is provided with a dehumidification and temperature regulation component 5. One end of the fresh air chamber 2 is provided with a separate exhaust structure 6 and an air inlet structure 7. The fresh air chamber 2 is provided with a separate fresh air outlet channel 21 and an exhaust air inlet channel 22. The exhaust chamber 1 is provided with an opening and closing control component 8 for switching between internal and external circulation.

[0021] The fresh air chamber 2 is provided with a first separation partition 23. The upper end of the first separation partition 23 forms an exhaust air inlet channel 22 and the lower end forms a fresh air outlet channel 21. One end of the fan box 92 is provided with an exhaust air inlet hole 221 that communicates with the exhaust air inlet channel 22, and the lower end of the exhaust air inlet hole 221 is provided with a fresh air outlet hole 211 that communicates with the fresh air outlet channel 21.

[0022] The fresh air outlet duct 21 and the exhaust air inlet duct 22 are isolated from each other to avoid cross-contamination.

[0023] As can be seen, the end of the fresh air outlet duct 21 away from the fresh air outlet 211 is connected to the fresh air guide cavity 212, and the fresh air guide cavity 212 is equipped with a fresh air intake fan 213; the exhaust air intake duct 22 is equipped with an exhaust air intake filter element 222, and one end of the exhaust air intake duct 22 is connected to the exhaust air guide cavity 223 located on one side of the heat exchange core 3.

[0024] The fresh air guide cavity 212 is the fresh air inlet cavity after dehumidification and temperature control. The exhaust air inlet filter 222 is set to ensure that the exhaust air entering the heat exchange core 3 is clean and reduce the growth of bacteria at the heat exchange core 3.

[0025] Obviously, the air intake structure 7 includes a fresh air intake cavity 71 disposed in the exhaust cavity 1, and a fresh air intake filter element 72 is disposed in the fresh air intake cavity 71. A fresh air intake hole 73 communicating with the fresh air intake cavity 71 is disposed at one end of the fan housing 92.

[0026] Outdoor fresh air enters the fresh air inlet chamber 71 through the fresh air inlet hole 73, and after being filtered by the fresh air inlet filter element 72, it enters the heat exchange core 3 in the exhaust chamber 1 to exchange heat with the exhaust air; then the fresh air enters the dehumidification and temperature regulation chamber 4, and after passing through the dehumidification and temperature regulation component 5 through the pre-cooling-evaporation-dehumidification-temperature regulation steps, it enters the fresh air guide chamber 212, and then is guided by the fresh air inlet fan 213 to the fresh air outlet channel 21 and discharged through the fresh air outlet hole 211.

[0027] Furthermore, the exhaust structure 6 includes an exhaust outlet 61 disposed on one side of the fresh air inlet 73. The exhaust outlet 61 is connected to the exhaust outlet cavity 62 disposed on one side of the fresh air inlet cavity 71. The exhaust outlet cavity 62 and the fresh air inlet cavity 71 are separated by a second separation partition 63. An exhaust fan 64 is disposed in the exhaust outlet cavity 62.

[0028] Indoor exhaust air enters the exhaust air inlet channel 22 through the exhaust air inlet hole 221, is filtered by the exhaust air inlet filter element 222, and then enters the heat exchange core 3 through the exhaust air guide cavity 223 for heat recovery. Then it is discharged to the outside through the exhaust air outlet cavity 62 and the exhaust air outlet hole 61 in sequence.

[0029] Furthermore, the opening and closing control component 8 includes a third separation partition 81 disposed on one side of the heat exchange core 3, an air inlet filter 82 disposed on one side of the third separation partition 81, an air inlet cavity 83 is formed between the fresh air inlet filter 82 and the third separation partition 81, an annular air guide 84 is disposed on the third separation partition 81 for connecting the air inlet cavity 83 and the exhaust air outlet cavity 62, and a rotating annular air guide plate 85 controlled by the control module 9 is disposed inside the annular air guide 84.

[0030] In circulation mode, after the exhaust air enters the exhaust air guide cavity 223, the annular air guide 84 is opened, and the exhaust air enters the dehumidification and temperature regulation cavity 4 for dehumidification and temperature regulation before re-entering the room.

[0031] Specifically, the control module 9 is connected to several temperature sensors 91, which are respectively installed in the fresh air inlet cavity 71, the air inlet cavity 83 and the fresh air guide cavity 212 for temperature detection.

[0032] In detail, the dehumidification and temperature control component 5 is installed in the evaporator 51 inside the dehumidification and temperature control chamber 4. The dehumidification and temperature control chamber 4 is provided with a pre-cooling regulating pipe 52 and an outlet air temperature regulating pipe 53. The pre-cooling regulating pipe 52 is provided with a first proportional regulating valve 54, and the outlet air temperature regulating pipe 53 is provided with a second proportional regulating valve 55.

[0033] More specifically, one end of the precooling regulating pipe 52 and the outlet air temperature regulating pipe 53 are connected to each other and connected to the water inlet pipe 56 located outside the fan housing 92, and the other end of the precooling regulating pipe 52 is connected to the return water pipe 57 located outside the fan housing 92.

[0034] After pre-cooling the water temperature, open the first proportional regulating valve 54 on the pre-cooling regulating pipe 52 and close the second proportional regulating valve 55 on the outlet air temperature regulating pipe 53. When fresh air enters the dehumidification and temperature regulating chamber 4, it is pre-cooled according to the set temperature, and then evaporated through the evaporator 51. Then, by closing the first proportional regulating valve 54 on the pre-cooling regulating pipe 52, the pre-cooling water is discharged. Open the second proportional regulating valve 55 on the outlet air temperature regulating pipe 53 and introduce the condensate into the outlet air temperature regulating pipe 53 for condensation. After condensation, the condensate is discharged and temperature regulating water is introduced into the temperature regulating pipe 43 for temperature regulation.

[0035] In addition, the dehumidification and temperature control chamber 4 has an air inlet 41 at one end near the air inlet filter 82, and an air outlet 42 is provided at one end of the dehumidification and temperature control chamber 4 near the fresh air guide chamber 212. A temperature control pipe 43 connected to the air outlet temperature control pipe 53 is provided inside the dehumidification and temperature control chamber 4 on the side near the air outlet 42.

[0036] In summary, the principle of this embodiment is as follows: When fresh air is introduced, it enters the fresh air intake chamber 71 through the fresh air intake hole 73, is filtered by the fresh air intake filter element 72, and then enters the heat exchange core 3 in the exhaust chamber 1 to exchange heat with the exhaust air; subsequently, the fresh air enters the dehumidification and temperature regulation chamber 4, and after passing through the pre-cooling-cooling-dehumidification-temperature regulation component 5, it enters the fresh air guide chamber 212, and is then guided to the fresh air outlet channel 21 by the fresh air intake fan 213 and passes through the fresh air outlet hole 2. 11 Exhaust; During exhaust, indoor exhaust air enters exhaust air inlet channel 22 through exhaust air inlet hole 221, is filtered by exhaust air inlet filter element 222, enters heat exchange core 3 through exhaust air guide cavity 223 for heat recovery, and then passes through exhaust air outlet cavity 62 and exhaust air outlet hole 61 in sequence to be discharged to the outside; In circulation mode, after exhaust air enters exhaust air guide cavity 223, the annular air guide 84 is opened, and exhaust air enters dehumidification and temperature regulation cavity 4 for dehumidification and temperature regulation treatment before re-entering the room.

[0037] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0038] Although this article extensively uses terms such as exhaust chamber 1, fresh air chamber 2, fresh air outlet duct 21, fresh air outlet 211, fresh air guide chamber 212, fresh air intake fan 213, exhaust air intake duct 22, exhaust air intake 221, exhaust air intake filter element 222, exhaust air guide chamber 223, first separation partition 23, heat exchange core 3, dehumidification and temperature control chamber 4, air inlet 41, air outlet 42, temperature control pipe 43, dehumidification and temperature control assembly 5, evaporator 51, pre-cooling regulating pipe 52, outlet air temperature regulating pipe 53, first proportional regulating valve 54, second proportional valve Examples of terms used include regulating valve 55, inlet pipe 56, return pipe 57, exhaust structure 6, exhaust outlet 61, exhaust outlet cavity 62, second separation partition 63, exhaust fan 64, air inlet structure 7, fresh air inlet cavity 71, fresh air inlet filter 72, fresh air inlet hole 73, opening and closing control assembly 8, third separation partition 81, fresh air inlet filter 82, air inlet cavity 83, annular air guide 84, rotating annular air guide plate 85, control module 9, temperature sensor 91, and fan housing 92. However, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A fresh air ventilator with independent temperature and humidity control, comprising a fan housing (92), wherein the fan housing (92) is provided with an exhaust chamber (1) and a fresh air chamber (2), and a heat exchange core (3) is provided in the exhaust chamber (1), characterized in that, The exhaust chamber (1) is provided with a dehumidification and temperature regulation chamber (4) at one end, and a dehumidification and temperature regulation component (5) is provided in the dehumidification and temperature regulation chamber (4). The fresh air chamber (2) is provided with a separate exhaust structure (6) and an air inlet structure (7) at one end. The fresh air chamber (2) is provided with a separate fresh air outlet channel (21) and an exhaust air inlet channel (22). The exhaust chamber (1) is provided with an opening and closing control component (8) for switching between internal and external circulation.

2. A fresh air system with independent temperature and humidity control according to claim 1, characterized in that, The fresh air cavity (2) is provided with a first separation partition (23). The upper end of the first separation partition (23) forms the exhaust air inlet channel (22) and the lower end forms the fresh air outlet channel (21). One end of the fan box (92) is provided with an exhaust air inlet hole (221) that communicates with the exhaust air inlet channel (22), and the lower end of the exhaust air inlet hole (221) is provided with a fresh air outlet hole (211) that communicates with the fresh air outlet channel (21).

3. A fresh air system with independent temperature and humidity control according to claim 2, characterized in that, The fresh air outlet channel (21) is connected to a fresh air guide cavity (212) at one end away from the fresh air outlet hole (211), and a fresh air intake fan (213) is installed in the fresh air guide cavity (212); an exhaust air intake filter (222) is installed in the exhaust air intake channel (22), and one end of the exhaust air intake channel (22) is connected to the exhaust air guide cavity (223) installed on one side of the heat exchange core (3).

4. A fresh air system with independent temperature and humidity control according to claim 3, characterized in that, The air intake structure (7) includes a fresh air intake cavity (71) set in the exhaust cavity (1), and a fresh air intake filter (72) is set in the fresh air intake cavity (71). One end of the fan box (92) is provided with a fresh air intake hole (73) that communicates with the fresh air intake cavity (71).

5. A fresh air system with independent temperature and humidity control according to claim 4, characterized in that, The exhaust structure (6) includes an exhaust outlet (61) located on one side of the fresh air inlet (73). The exhaust outlet (61) is connected to the exhaust outlet cavity (62) located on one side of the fresh air inlet cavity (71). The exhaust outlet cavity (62) and the fresh air inlet cavity (71) are separated by a second separation partition (63). An exhaust fan (64) is installed in the exhaust outlet cavity (62).

6. A fresh air system with independent temperature and humidity control according to claim 5, characterized in that, The opening and closing control component (8) includes a third separation partition (81) disposed on one side of the heat exchange core (3), an air inlet filter (82) disposed on one side of the third separation partition (81), an air inlet cavity (83) is formed between the fresh air inlet filter (82) and the third separation partition (81), an annular air guide (84) is disposed on the third separation partition (81) for connecting the air inlet cavity (83) and the exhaust air outlet cavity (62), and a rotating annular air guide plate (85) controlled by the control module (9) is disposed inside the annular air guide (84).

7. A fresh air system with independent temperature and humidity control according to claim 6, characterized in that, The control module (9) is connected to several temperature sensors (91), which are respectively installed in the fresh air inlet cavity (71), the air inlet cavity (83) and the fresh air guide cavity (212) for temperature detection.

8. A fresh air system with independent temperature and humidity control according to claim 1, characterized in that, The dehumidification and temperature control component (5) is installed in the evaporator (51) of the dehumidification and temperature control chamber (4). The dehumidification and temperature control chamber (4) is provided with a pre-cooling regulating pipe (52) and an outlet air temperature regulating pipe (53). A first proportional regulating valve (54) is provided on the pre-cooling regulating pipe (52), and a second proportional regulating valve (55) is provided on the outlet air temperature regulating pipe (53).

9. A fresh air system with independent temperature and humidity control according to claim 8, characterized in that, The precooling regulating pipe (52) and the outlet air temperature regulating pipe (53) are connected to each other at one end and connected to the water inlet pipe (56) located outside the fan housing (92). The other end of the precooling regulating pipe (52) is connected to the return water pipe (57) located outside the fan housing (92).

10. A fresh air system with independent temperature and humidity control according to claim 9, characterized in that, The dehumidification and temperature control chamber (4) has an air inlet (41) at one end near the air inlet filter (82), and an air outlet (42) is provided at one end near the fresh air guide chamber (212). A temperature control pipe (43) connected to the air outlet temperature control pipe (53) is provided inside the dehumidification and temperature control chamber (4) and on one side near the air outlet (42).

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