Total heat internal circulation dehumidifier

The total heat recovery dehumidifier integrates fresh air, dehumidification, and heat exchange functions, automatically switching between internal and external circulation. This solves the problems of high energy consumption and air quality in air conditioning systems, achieving dry indoor air and stable temperature.

CN223537737UActive Publication Date: 2025-11-11ZHEJIANG MENRED ENVIRONMENT TECH CO LTD
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Patent Information

Application Number
CN202423103828.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-11-11
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing air conditioning systems with independent temperature and humidity control have large fresh air loads and sensible heat terminal loads, resulting in high energy consumption. Furthermore, the movement of people can easily affect indoor air quality, and the process of fresh air exchange or dehumidification inevitably affects indoor temperature, leading to increased power consumption for temperature control.

Method used

Design a total heat exchange internal circulation dehumidifier that integrates fresh air, dehumidification and heat exchange functions. It automatically switches between internal and external circulation and uses a heat exchange core, air direction adjustment component, exhaust fan and fresh air intake mechanism to achieve indoor air drying and temperature stability.

Benefits of technology

The device is compact, easy to disassemble and repair, and has a variety of functions. It can automatically switch dehumidification modes according to indoor and outdoor humidity to ensure dry indoor air and stable temperature, reduce energy consumption, and improve the energy-saving effect of the air conditioning system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a total heat internal circulation dehumidifier. The temperature and humidity air conditioner solves the problem that in the prior art, when a temperature and humidity air conditioner dehumidifies, the indoor temperature is prone to being affected. A cold and heat exchange core is arranged in the assembly shell, an air direction adjusting assembly is arranged on one side of the cold and heat exchange core, an exhaust fan structure is arranged at one end of the assembly shell, a fresh air inlet mechanism is arranged on one side of the exhaust fan structure, an inner air inlet mechanism is arranged at the other end of the assembly shell, and an inner dehumidification fan structure is arranged on one side of the inner air inlet mechanism. An inner circulation dehumidification channel is formed among the inner air inlet mechanism, the air direction adjusting assembly and the inner dehumidification fan structure, a fresh air channel is formed among the fresh air inlet mechanism, the dehumidification filter and the inner dehumidification fan structure, and an exhaust channel is formed among the inner air inlet mechanism, the air direction adjusting assembly, the cold and heat exchange core and the exhaust fan structure. The air conditioner has the advantages that internal circulation dehumidification and external circulation dehumidification can be automatically switched according to indoor and outdoor humidity, and indoor air dryness and stability of a temperature curve are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment technology, specifically to a total heat internal circulation dehumidifier. Background Technology

[0002] In the air conditioning field, air conditioning systems with independent temperature and humidity control offer advantages over traditional systems, including flexible control and convenient temperature and humidity adjustment, leading to their rapid development and widespread application in recent years. However, existing independent temperature and humidity control systems suffer from significant fresh air loads and sensible heat terminal loads in practical applications, resulting in large overall unit capacity and high energy consumption, which is detrimental to energy conservation. Furthermore, while these systems have filtration capabilities, PM2.5 and dust can still be introduced into the room with the movement of people, affecting indoor air quality. In addition, the process of fresh air exchange or dehumidification inevitably impacts indoor temperature, causing temperature fluctuations and increasing the power consumption of the air conditioning system, further hindering energy efficiency.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses an internal circulation dehumidifier unit [CN201821705379.6], which includes a vertical housing. The front panel of the housing has air outlets and air inlets on its upper and lower sides respectively. A pre-filter and a PM2.5 filter are arranged side by side in the housing corresponding to the air outlets, with the PM2.5 filter inside the pre-filter. A fan is located in the housing above the pre-filter and PM2.5 filter, and a heat exchanger is located in the housing above the fan. The inlet and outlet of the heat exchanger are connected to a low-temperature cold water source through pipes to form a circulation. Indoor air flows sequentially through the air inlet, pre-filter, PM2.5 filter, fan, heat exchanger, and air outlet to form an air duct.

[0004] The above solution has solved to some extent the problems of high load, high energy consumption and easy air quality impact caused by people entering and leaving the existing temperature and humidity air conditioning system. However, the solution still has many shortcomings. For example, the process of fresh air exchange or dehumidification in the room inevitably affects the indoor temperature, causing changes in indoor temperature, increasing the temperature control power consumption of the air conditioner, and is not conducive to energy saving of the air conditioner. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a total heat internal circulation dehumidifier.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a total heat internal circulation dehumidifier, comprising an assembly shell, a heat exchange core inside the assembly shell, an air direction adjustment component on one side of the heat exchange core, an exhaust fan structure at one end of the assembly shell located on the side of the heat exchange core, and a fresh air inlet mechanism spaced apart on one side of the exhaust fan structure; an internal air inlet mechanism corresponding to the exhaust fan structure at the other end of the assembly shell located on the other side of the heat exchange core, and an internal dehumidification fan structure spaced apart and connected to the fresh air inlet mechanism on one side of the internal air inlet mechanism; an internal circulation dehumidification channel is formed between the internal air inlet mechanism, the air direction adjustment component, and the internal dehumidification fan structure; a fresh air channel is formed between the fresh air inlet mechanism, the dehumidification filter, and the internal dehumidification fan structure; and an exhaust channel is formed between the internal air inlet mechanism, the air direction adjustment component, the heat exchange core, and the exhaust fan structure.

[0007] In the above-mentioned total heat internal circulation dehumidifier, an internal circulation channel is provided inside the housing and on one side of the heat exchange core. An internal air intake filter is provided on one side of the internal circulation channel. An air direction adjustment component is provided at one end of the internal air intake filter, and the air direction adjustment component and the internal air intake filter form a movable seal on one side of the internal circulation channel.

[0008] In the above-mentioned total heat internal circulation dehumidifier, the internal dehumidifier fan structure includes a dehumidifier air chamber, an internal air intake fan is provided in the dehumidifier air chamber, the air intake end of the internal air intake fan is provided with a dehumidifier, and the air outlet end of the internal air intake fan is located on the outside of the assembly housing and extends towards the room. The internal air intake filter element is located between the internal circulation channel and the dehumidifier air chamber.

[0009] In the above-mentioned total heat internal circulation dehumidifier, the internal air intake mechanism includes an internal air intake cavity disposed on one side of the dehumidification air cavity, a baffle is provided between the internal air intake cavity and the dehumidification air cavity, and the internal air intake cavity is interconnected with the heat exchange core.

[0010] In the above-mentioned total heat internal circulation dehumidifier, the air direction adjustment component includes an inclined air direction adjustment seat, the air direction adjustment seat is provided with a guide hole, and an annular electronically controlled valve plate is rotatably provided on the guide hole to open and close the guide hole, thereby realizing the connection between the internal circulation channel and the internal air inlet cavity.

[0011] In the above-mentioned total heat internal circulation dehumidifier, the exhaust fan structure includes an exhaust air chamber, an exhaust fan is installed in the exhaust air chamber, the output end of the exhaust fan extends to the outside of the assembly housing and communicates with the outside, and the exhaust air chamber is communicated with the inner air inlet air chamber through a heat exchange core.

[0012] In the aforementioned total heat recovery internal circulation dehumidifier, the fresh air intake mechanism includes an external fresh air chamber, which is separated from the exhaust air chamber by a partition. The external fresh air chamber is provided with a fresh air inlet extending towards the outside of the housing. A fresh air filter is provided on the side of the external fresh air chamber near the heat exchange core. The external fresh air chamber is connected to the internal circulation channel through the heat exchange core.

[0013] In the aforementioned type of total heat internal circulation dehumidifier, an electrically controlled check valve arranged in a ring is provided at the fresh air inlet.

[0014] In the above-mentioned total heat internal circulation dehumidifier, an outdoor humidity sensor for detecting outdoor humidity and rainwater is provided at the outdoor end of the assembly housing, and an indoor humidity sensor for detecting indoor humidity is provided at the indoor end of the assembly housing.

[0015] In the above-mentioned total heat internal circulation dehumidifier, a flap for disassembly and repair is provided on one side of the housing, and the flap is locked by rotating locking parts provided on both sides.

[0016] Compared with the existing technology, the advantages of this utility model are: the equipment is small and easy to disassemble and repair, and it integrates fresh air, dehumidification and heat exchange into one unit, with rich functions. It can also automatically switch between internal circulation dehumidification and external circulation dehumidification according to the indoor and outdoor humidity conditions, ensuring the dryness of indoor air and the stability of the temperature curve, and has good performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the assembly housing in this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the wind direction adjustment component in this utility model;

[0020] In the diagram: Assembly housing 1, heat exchange core 11, internal circulation channel 12, internal air intake filter 13, flap 14, rotating locking component 15, air direction adjustment assembly 2, air direction adjustment seat 21, guide hole 22, annular electronically controlled valve plate 23, exhaust fan structure 3, exhaust air cavity 31, exhaust fan 32, fresh air intake mechanism 4, external fresh air cavity 41, separation partition 42, fresh air inlet 43, fresh air intake filter 44, electronically controlled check valve 45, internal air intake mechanism 5, internal air intake cavity 51, baffle plate 52, internal dehumidifier fan structure 6, dehumidifier cavity 61, internal air intake fan 62, dehumidifier 63, internal circulation dehumidification channel 7, fresh air channel 8, exhaust channel 9. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] like Figure 1-3 As shown, a total heat internal circulation dehumidifier includes an assembly housing 1, a heat exchange core 11 inside the assembly housing 1, an airflow adjustment component 2 on one side of the heat exchange core 11, an exhaust fan structure 3 at one end of the assembly housing 1 located on the side of the heat exchange core 11, and a fresh air intake mechanism 4 spaced apart on one side of the exhaust fan structure 3. An internal air intake mechanism 5 corresponding to the exhaust fan structure 3 is located at the other end of the assembly housing 1 located on the other side of the heat exchange core 11, and an internal dehumidification fan structure 6 spaced apart and connected to the fresh air intake mechanism 4 is located on one side of the internal air intake mechanism 5. An internal circulation dehumidification channel 7 is formed between the internal air intake mechanism 5, the airflow adjustment component 2, and the internal dehumidification fan structure 6, and a fresh air channel 8 is formed between the fresh air intake mechanism 4, the dehumidification filter, and the internal dehumidification fan structure 6. An exhaust channel 9 is formed between the internal air intake mechanism 5, the airflow adjustment component 2, the heat exchange core 11, and the exhaust fan structure 3.

[0023] The assembly housing 1 has an internal circulation channel 12 located inside the heat exchange core 11 and on one side of the internal circulation channel 12. An internal air intake filter 13 is located on one side of the internal circulation channel 12. The air direction adjustment component 2 is located at one end of the internal air intake filter 13, and the air direction adjustment component 2 and the internal air intake filter 13 form a movable seal on one side of the internal circulation channel 12.

[0024] The heat exchange core 11 here integrates a dehumidifying filter.

[0025] As can be seen, the internal dehumidifier structure 6 includes a dehumidifier cavity 61, an internal air intake fan 62 is provided in the dehumidifier cavity 61, a dehumidifier 63 is provided at the air intake end of the internal air intake fan 62, and the air outlet end of the internal air intake fan 62 is located outside the assembly housing 1 and extends towards the room. The internal air intake filter element 13 is located between the internal circulation channel 12 and the dehumidifier cavity 61.

[0026] The inner air intake filter 13 is used to dehumidify the air entering the dehumidification chamber 61, and then exhaust it into the room through the inner air intake fan 62 to ensure that the air is dry.

[0027] Obviously, the internal air intake mechanism 5 includes an internal air intake cavity 51 disposed on one side of the dehumidification cavity 61, and a baffle 52 is provided between the internal air intake cavity 51 and the dehumidification cavity 61. The internal air intake cavity 51 is interconnected with the heat exchange core 11.

[0028] The air direction adjustment seat 21 is used to seal the inner air intake cavity 51 and the inner circulation channel 12.

[0029] Furthermore, the wind direction adjustment component 2 includes an inclined wind direction adjustment seat 21, on which a guide hole 22 is provided, and an annular electrically controlled valve plate 23 is rotatably provided on the guide hole 22 to open and close the guide hole 22, thereby realizing the connection between the inner circulation channel 12 and the inner air inlet cavity 51.

[0030] The opening and closing of the annular electronically controlled valve plate 23 can connect the inner air intake cavity 51 with the inner circulation channel 12 to achieve internal circulation dehumidification.

[0031] In detail, the exhaust fan structure 3 includes an exhaust air chamber 31, an exhaust fan 32 is provided in the exhaust air chamber 31, the output end of the exhaust fan 32 extends to the outside of the assembly housing 1 and communicates with the outside, and the exhaust air chamber 31 is communicated with the inner air inlet chamber 51 through the heat exchange core 11.

[0032] The exhaust fan structure 3 is mainly used to exhaust indoor air and, together with the fresh air duct 8, achieves heat exchange.

[0033] Specifically, the fresh air intake mechanism 4 includes an external fresh air chamber 41, which is separated from the exhaust air chamber 31 by a separation partition 42. The external fresh air chamber 41 is provided with a fresh air inlet 43 extending towards the outside of the assembly housing 1. A fresh air inlet filter 44 is provided on the side of the external fresh air chamber 41 near the heat exchange core 11. The external fresh air chamber 41 is connected to the internal circulation channel 12 through the heat exchange core 11.

[0034] The fresh air intake filter 44 is used to perform preliminary filtration of the incoming air to ensure air quality. The filtered air flows from the bottom through the heat exchange core 11 to the inner circulation channel 12, and then through the inner air intake filter 13 for secondary filtration before entering the dehumidification air chamber 61.

[0035] Furthermore, an electrically controlled check valve 45 arranged in a ring is provided at the fresh air inlet 43. During internal circulation dehumidification, the electrically controlled check valve 45 is closed, thus sealing the fresh air inlet 43. At the same time, the annular electrically controlled valve plate 23 is opened, connecting the dehumidification chamber 61, the internal circulation channel 12, and the air inlet chamber 51.

[0036] More specifically, the outdoor end of the assembly housing 1 is provided with an outdoor humidity sensor for detecting outdoor humidity and rainwater, and the indoor end of the assembly housing 1 is provided with an indoor humidity sensor for detecting indoor humidity.

[0037] When the outdoor humidity sensor detects high outdoor humidity or rain, it shuts off the external air circulation and turns on the internal air circulation for dehumidification, drawing in outside air at set intervals to exchange for fresh air; when the indoor humidity sensor detects low indoor humidity, it turns on the external air circulation for dehumidification.

[0038] In addition, a flap 14 for disassembly and repair is provided on one side of the housing 1, and the flap 14 is locked by rotating locking members 15 on both sides.

[0039] This setup allows for easy disassembly, repair, and replacement of the heat exchange core 11; it can be simply pulled out, making the operation convenient.

[0040] In summary, the principle of this embodiment is as follows: During daily use, indoor air is drawn out through the exhaust duct 9 and outdoor air is drawn in through the fresh air duct 8. When the outdoor air enters, it is initially filtered by the fresh air intake filter 44 and initially dehumidified by the heat exchange core 11. Then it is filtered a second time by the inner air intake filter 13 and a second time by the dehumidifier 63 before entering the room.

[0041] When the outdoor humidity sensor detects high outdoor humidity or the presence of rain, the external circulation is shut off, i.e., the fresh air inlet 43 is closed using the electronically controlled check valve 45, and the exhaust fan 32 is shut off; the internal circulation dehumidification is activated, i.e., the guide hole 22 is opened using the annular electronically controlled valve plate 23, and indoor air enters the room after being dehumidified through the internal circulation dehumidification channel 7. At set intervals, outside air is drawn out once to replace the air. When the indoor humidity sensor detects low indoor humidity, the external circulation dehumidification is activated.

[0042] 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.

[0043] Although this article uses a lot of terms such as assembly shell 1, heat exchange core 11, internal circulation channel 12, internal air intake filter 13, flap 14, rotating locking component 15, air direction adjustment component 2, air direction adjustment seat 21, guide hole 22, annular electronically controlled valve plate 23, exhaust fan structure 3, exhaust air cavity 31, exhaust fan 32, fresh air intake mechanism 4, external fresh air cavity 41, separation partition 42, fresh air inlet 43, fresh air intake filter 44, electronically controlled check valve 45, internal air intake mechanism 5, internal air intake cavity 51, baffle plate 52, internal dehumidifier fan structure 6, dehumidifier cavity 61, internal air intake fan 62, dehumidifier 63, internal circulation dehumidification channel 7, fresh air channel 8, exhaust channel 9, the possibility of using other terms cannot be ruled out. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would be contrary to the spirit of this utility model.

Claims

1. A total heat internal circulation dehumidifier, comprising an assembly housing (1), wherein a heat exchange core (11) is provided inside the assembly housing (1), characterized in that, The heat exchange core (11) is provided with a wind direction adjustment component (2) on one side. The assembly housing (1) is provided with an exhaust fan structure (3) on one side of the heat exchange core (11). The exhaust fan structure (3) is provided with a fresh air intake mechanism (4) spaced apart on one side. The assembly housing (1) is provided with an internal air intake mechanism (5) corresponding to the exhaust fan structure (3) on the other side of the heat exchange core (11). The internal air intake mechanism (5) is provided with an internal dehumidifying fan structure (6) spaced apart and connected to the fresh air intake mechanism (4) on one side. The internal air intake mechanism (5), the wind direction adjustment component (2), and the internal dehumidifying fan structure (6) form an internal circulation dehumidification channel (7). The fresh air intake mechanism (4), the dehumidifying filter, and the internal dehumidifying fan structure (6) form a fresh air channel (8). The internal air intake mechanism (5), the wind direction adjustment component (2), the heat exchange core (11), and the exhaust fan structure (3) form an exhaust channel (9).

2. The total heat internal circulation dehumidifier according to claim 1, characterized in that, An internal circulation channel (12) is provided inside the assembly housing (1) and on one side of the heat exchange core (11). An internal air intake filter (13) is provided on one side of the internal circulation channel (12). The air direction adjustment component (2) is provided at one end of the internal air intake filter (13), and the air direction adjustment component (2) and the internal air intake filter (13) form a movable seal on one side of the internal circulation channel (12).

3. A total heat internal circulation dehumidifier according to claim 2, characterized in that, The internal dehumidifier fan structure (6) includes a dehumidifier air chamber (61), an internal air intake fan (62) is provided in the dehumidifier air chamber (61), a dehumidifier (63) is provided at the air intake end of the internal air intake fan (62), and the air outlet end of the internal air intake fan (62) is located outside the assembly housing (1) and extends towards the room. The internal air intake filter (13) is located between the internal circulation channel (12) and the dehumidifier air chamber (61).

4. A total heat internal circulation dehumidifier according to claim 3, characterized in that, The internal air intake mechanism (5) includes an internal air intake cavity (51) disposed on one side of the dehumidification cavity (61), and a baffle plate (52) is provided between the internal air intake cavity (51) and the dehumidification cavity (61). The internal air intake cavity (51) is connected to the heat exchange core (11).

5. A total heat internal circulation dehumidifier according to claim 4, characterized in that, The wind direction adjustment component (2) includes an inclined wind direction adjustment seat (21), the wind direction adjustment seat (21) is provided with a guide hole (22), and an annular electrically controlled valve plate (23) is rotatably provided on the guide hole (22) to open and close the guide hole (22) so as to realize the connection between the inner circulation channel (12) and the inner air inlet cavity (51).

6. A total heat internal circulation dehumidifier according to claim 2, characterized in that, The exhaust fan structure (3) includes an exhaust air chamber (31), an exhaust fan (32) is provided in the exhaust air chamber (31), the output end of the exhaust fan (32) extends to the outside of the assembly housing (1) and communicates with the outside, and the exhaust air chamber (31) is connected to the inner air inlet chamber (51) through the heat exchange core (11).

7. A total heat internal circulation dehumidifier according to claim 6, characterized in that, The fresh air intake mechanism (4) includes an external fresh air chamber (41), which is separated from the exhaust air chamber (31) by a separation partition (42). The external fresh air chamber (41) is provided with a fresh air inlet (43) extending towards the outside of the assembly housing (1). A fresh air filter (44) is provided on the side of the external fresh air chamber (41) near the heat exchange core (11). The external fresh air chamber (41) is connected to the internal circulation channel (12) through the heat exchange core (11).

8. A total heat internal circulation dehumidifier according to claim 7, characterized in that, The fresh air inlet (43) is provided with an electrically controlled check valve (45) arranged in a ring.

9. A total heat internal circulation dehumidifier according to claim 1, characterized in that, The assembly housing (1) is provided with an outdoor humidity sensor at the outdoor end for detecting outdoor humidity and rainwater, and an indoor humidity sensor at the indoor end for detecting indoor humidity.

10. A total heat internal circulation dehumidifier according to claim 1, characterized in that, The assembly housing (1) is provided with a flap (14) for disassembly and repair on one side, and the flap (14) is locked (15) by rotating locking members provided on both sides.

Citation Information

Patent Citations

  • Internal circulation dehumidification unit

    CN209165617U