Fresh air heating equipment

Abstract

The invention discloses fresh air heating equipment which comprises a box body, a cover plate, an air duct assembly and a control adjusting assembly. According to the fresh air heating equipment, the cover plate covers the air channel assembly in the box body, the air channel assembly is internally provided with the air flow channel, the air channel assembly divides the box body into the first air cavity and the second air cavity, and the first air cavity and the second air cavity intersect at one end of the air flow channel; the exhaust outlet and the ventilation opening communicate with the other end of the air flow channel, and the first air cavity communicates with the ventilation opening so that it can be guaranteed that fresh air is introduced. By controlling the adjusting assembly, the air flow channel is controlled to be selectively communicated with one of the ventilation opening and the exhaust opening, so that switching among a fresh air heating mode, an indoor air heating mode and an air exchange mode is achieved. According to the fresh air heating equipment, multiple working modes are provided, fresh air heating is achieved by introducing fresh air to be mixed with indoor air, and energy consumption is reduced while the air inlet amount is increased; the air exchange mode is adopted, the oxygen content concentration in the bathroom is improved, and then the comfort degree is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heating equipment, and in particular to a fresh air heating equipment. Background Art

[0002] Yuba is a commonly used heating device in the bathroom. There are two types of heating devices on the market: light heating and warm air system heating. When bathing, the air in the bathroom is not circulated due to the increase of humidity, which leads to a decrease in the oxygen content in the bathroom, thus affecting the comfort of bathing.

[0003] Fresh air heating devices in the prior art, for example, Chinese patent publication number CN114251845A discloses a warm air bathroom heater that can ventilate with fresh air, and realizes warm air mode, exhaust mode and fresh air ventilation mode by adjusting the baffle. The warm air bathroom heater disclosed in the patent controls the rotation of the first baffle to connect the outdoor air inlet duct with the centrifugal wind wheel, and the indoor air inlet duct is separated from the centrifugal wind wheel, controls the second baffle to connect the outdoor air inlet duct with the outdoor air outlet, and separates the exhaust duct from the outdoor air outlet, is powered by the centrifugal wind wheel, and the centrifugal wind wheel rotates forward, and the outdoor air enters through the outdoor air inlet duct and is discharged to the room through the warm air duct, so as to realize the fresh air ventilation mode.

[0004] The above-mentioned fresh air ventilation mode only heats the fresh air pouring in from the outdoor air outlet for heating, and a high-power heater is needed to heat the fresh air to meet the heating needs, which consumes a lot of energy. In addition, the fresh air heating equipment in the prior art has serious air intake loss and a small air intake volume, which leads to low oxygen content in the bathroom, affecting the comfort of bathing. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the fresh air heating equipment in the prior art, such as serious air intake loss, small air intake volume and high energy consumption, thereby providing a fresh air heating equipment that can provide fresh air ventilation and increase the oxygen content in the bathroom.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0007] A fresh air heating device comprises: a box body, a cover plate, an air duct assembly, and a control and adjustment assembly; a vent connected to the outside is provided on the side wall of the box body; the cover plate is arranged on the box body, and an exhaust port connected to the indoor is provided on the cover plate; the air duct assembly is arranged in the box body, a first air cavity is formed between the lower surface of the air duct assembly and the box body, a second air cavity is formed between the upper surface of the air duct assembly and the cover plate, an air flow channel whose one end is connected to the first air cavity and the second air cavity is defined in the air duct assembly, the exhaust port and the air duct can both be connected to the other end of the air flow channel, the first air cavity can be connected to the air duct, an air inlet connected to the indoor is provided on the cover plate and / or the side wall of the box body, and the second air cavity is connected to the air inlet; the control and adjustment assembly is suitable for controlling the other end of the air flow channel to selectively connect to the vent and the exhaust port, and controlling the first air cavity to connect to or block the vent, so as to realize the switching between the fresh air heating mode, the indoor air heating mode and the ventilation mode.

[0008] According to some embodiments of the present invention, a flow channel outlet is provided at the other end of the air flow channel, and the exhaust port, the ventilation port and the first air cavity converge at the flow channel outlet.

[0009] According to some embodiments of the present invention, the control and adjustment component includes a first flap and a second flap, the first flap is rotatably provided on the box body, the first flap flips to allow the flow channel outlet to selectively connect with the ventilation port or the exhaust port, the second flap is rotatably provided on the air duct component, the second flap flips to connect the first air cavity and the flow channel outlet, or to block the first air cavity and the flow channel outlet.

[0010] According to some embodiments of the present invention, the air duct assembly includes a first air collecting plate, a second air collecting plate, and a mold plate arranged between the first air collecting plate and the second air collecting plate; the first air collecting plate, the second air collecting plate and the mold plate together form the air flow channel, the first air collecting plate, the side wall of the box body and the bottom plate of the box body together form the first air cavity; the second air collecting plate, the side wall of the box body and the cover plate together form the second air cavity.

[0011] According to some embodiments of the present invention, a first air guide port and a second air guide port are provided on the first air collecting plate, the first air cavity is connected to one end of the air channel through the first air guide port, the first air cavity and the channel outlet meet at the second air guide port, the second flap is provided on the first air collecting plate and corresponds to the position of the second air guide port, the second flap flips to connect the first air cavity and the channel outlet, or to block the first air cavity and the channel outlet.

[0012] According to some embodiments of the present invention, the second air collecting plate is provided with a third air guide port and a fourth air guide port, the second air cavity is connected with one end of the air flow channel through the third air guide port, the exhaust port and the flow channel outlet meet at the fourth air guide port, the first flap is rotatably connected to the box body, and the first flap flip cover is arranged on the second air guide port or the fourth air guide port, so that the flow channel outlet can be connected to the ventilation port or the exhaust port.

[0013] According to some embodiments of the present invention, the third air guide port and the first air guide port are arranged opposite to each other, and the fourth air guide port and the second air guide port are arranged opposite to each other.

[0014] According to some embodiments of the present invention, the third air guide opening and the first air guide opening are circular holes, and the hole walls of the third air guide opening and the first air guide opening are arc surfaces folded toward the air flow channel.

[0015] According to some embodiments of the present invention, the fresh air heating device further comprises a wind wheel assembly, wherein the wind wheel assembly is fixedly mounted on the bottom plate of the box body, and the wind wheel assembly passes through the first air guide port and is disposed in the air flow channel.

[0016] According to some embodiments of the present invention, the wind wheel assembly includes a motor and a centrifugal wind wheel both disposed in the casing, the motor is fixed to the bottom plate of the casing, and the driving end of the motor is transmission-connected to the wind wheel to drive the wind wheel to rotate.

[0017] According to some embodiments of the present invention, the fresh air heating device further includes a heating component disposed between the air flow channel and the exhaust port, wherein the heating component is suitable for heating the air flowing from the air flow channel to the exhaust port.

[0018] According to some embodiments of the present invention, the heating assembly includes a mounting frame and a heater disposed in the mounting frame, the mounting frame is fixedly mounted on the fourth air guide port, and the mounting frame is sealed and connected to the cover plate, the gas in the air flow channel flows through the flow channel outlet and the fourth air guide port, and is discharged from the exhaust port after being heated by the heater.

[0019] According to some embodiments of the present invention, the fresh air heating device also includes a first driving member and a second driving member arranged in the box body, the driving end of the first driving member is connected to the first flap transmission to drive the first flap to rotate, and the driving end of the second driving member is connected to the second flap transmission to drive the second flap to rotate.

[0020] According to some embodiments of the present invention, a sealing sleeve is provided on the outer periphery of the first flap and the second flap.

[0021] The technical solution of the present invention has the following advantages:

[0022] 1. The fresh air heating device provided by the present invention has a cover plate that covers the air duct assembly in the box body, and an air flow channel is arranged in the air duct assembly. The air duct assembly divides the box body into a first air cavity and a second air cavity, and the first air cavity and the second air cavity intersect at the air flow channel; the exhaust port and the vent are both connected to the air flow channel, and the first air cavity is connected to the vent to ensure the introduction of fresh air. By controlling the regulating component, the air flow channel is controlled to be connected to the vent and the exhaust port to realize the switching between the fresh air heating mode, the indoor air heating mode and the ventilation mode. In the fresh air heating mode, the regulating component controls the air flow channel to be connected to the exhaust port, and the air flow channel and the vent are blocked. At this time, the vent is connected to the first air cavity, and the outdoor fresh air flows through the first air cavity from the vent. After the indoor air enters the second air cavity from the air inlet, the outdoor fresh air and the indoor air enter the air flow channel together and flow out from the exhaust port to achieve the purpose of fresh air heating. When the control and adjustment component controls the air flow channel to be connected with the vent, and the air flow channel and the exhaust port are blocked, it is the exhaust ventilation mode. When the control and adjustment component controls the air flow channel to be blocked with the vent, and the vent and the first air cavity are blocked, the air flow channel and the exhaust port are connected, the indoor air flows through the air flow channel and is discharged from the exhaust port, realizing the indoor air heating mode. The fresh air heating device proposed in the present invention provides a variety of working modes. In the fresh air heating mode, fresh air heating is realized by introducing fresh air to mix with indoor air, increasing the air intake while reducing energy consumption; the oxygen content concentration in the bathroom is increased by ventilation, thereby improving the comfort level.

[0023] 2. The fresh air heating device provided by the present invention has a flow channel outlet in the air flow channel, and the exhaust port, the vent and the first air cavity meet at the flow channel outlet. When ventilating, the indoor air is exhausted from the vent, and when heating with fresh air, the fresh air enters from the vent, which improves versatility, avoids opening multiple channels, reduces pipeline layout, reduces the number of wall openings, and reduces costs.

[0024] 3. The fresh air heating equipment provided by the present invention realizes the adjustment of the two modes of fresh air heating and ventilation by flipping the first flap and the second flap, realizes the introduction of fresh air and the exhaust of indoor air through one vent, simplifies the structure, avoids the layout of multiple pipelines, and reduces costs.

[0025] 4. In the fresh air heating device provided by the present invention, the third air guide port and the first air guide port are arranged relative to each other, which can avoid the loss of the incoming air volume, thereby increasing the air volume and improving the comfort.

[0026] 5. In the fresh air heating device provided by the present invention, the hole walls of the third air guide port and the first air guide port are arc surfaces folded toward the air flow passage, thereby improving the smoothness of the fresh air and indoor air flowing into the air flow passage.

[0027] 6. The fresh air heating device provided by the present invention respectively adjusts the flipping of the first flap and the second flap through the first driving member and the second driving member, thereby improving the automation capability and realizing intelligent adjustment.

[0028] 7. The fresh air heating device provided by the present invention has a sealing sleeve arranged on the outer periphery of the first flap and the second flap, thereby ensuring air tightness, avoiding airflow leakage, and improving performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 An exploded schematic diagram of a fresh air heating device provided in some embodiments of the present invention;

[0031] Figure 2 It is a schematic diagram of assembling a box, an air duct assembly and a wind wheel assembly provided in some embodiments of the present invention;

[0032] Figure 3 A schematic diagram of the installation of a first air collecting plate and a template in an air duct assembly provided in some embodiments of the present invention;

[0033] Figure 4 A schematic structural diagram of a second air collecting plate of an air duct assembly provided in some embodiments of the present invention;

[0034] Figure 5 A top view of a fresh air heating device provided in some embodiments of the present invention;

[0035] Figure 6 The fresh air heating device provided in some embodiments of the present invention is arranged along the fresh air heating mode. Figure 5 A cross-sectional view of the B-B section;

[0036] Figure 7 The fresh air heating device provided in some embodiments of the present invention is arranged along the fresh air heating mode. Figure 5 A cross-sectional view of section A-A;

[0037] Figure 8 The fresh air heating device provided in some embodiments of the present invention is in ventilation mode along Figure 5 A cross-sectional view of the B-B section;

[0038] Fig. 9The fresh air heating device provided in some embodiments of the present invention is in ventilation mode along Figure 5 Cross-sectional view of section A-A.

[0039] Explanation of the reference numerals: 1. housing; 2. air duct assembly; 3. wind wheel assembly; 4. cover plate; 5. heating assembly; 6. second flap; 7. first flap; 8. first air cavity; 9. second air cavity; 11. vent; 21. first air collecting plate; 22. second air collecting plate; 23. mold plate; 24. air flow channel; 31. motor; 32. centrifugal wind wheel; 41. air inlet; 42. air outlet; 51. mounting bracket; 52. heater; 211. first air guide port; 212. second air guide port; 221. third air guide port; 222. fourth air guide port; 241. flow channel outlet. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0044] Reference Figures 1 to 9As shown, the present invention proposes a fresh air heating device, comprising: a box body 1, a cover plate 4, an air duct assembly 2 and a control and adjustment assembly; a vent 11 connected to the outside is opened on the side wall of the box body 1; the cover plate 4 is covered on the box body 1, and an air inlet and exhaust port 42 connected to the room is provided on the cover plate 4, as shown in FIG. Figure 5 As shown; the air duct component 2 is arranged in the box body 1, and a first air cavity 8 is formed between the lower surface of the air duct component 2 and the box body 1, and a second air cavity 9 is formed between the upper surface of the air duct component 2 and the cover plate 4. An air flow channel 24 is defined in the air duct component 2, and one end of the air flow channel 24 is connected to the first air cavity 8 and the second air cavity 9. Both the exhaust port 42 and the vent 11 can be connected to the other end of the air flow channel 24, and the first air cavity 8 can be connected to the vent 11. An air inlet 41 connected to the room is provided on the side wall of the cover plate 4 and / or the box body 1, and the second air cavity 9 is connected to the air inlet 41; the control and adjustment component is suitable for controlling the other end of the air flow channel 24 to select one of the vent 11 and the exhaust port 42 to be connected, and controlling the first air cavity 8 to be connected or blocked to the vent 11, so as to realize the switching between the fresh air heating mode, the indoor air heating mode and the ventilation mode.

[0045] Reference Figure 2 and Figure 3 As shown, specifically, the cover plate 4 covers the air duct assembly 2 in the box body 1, and an air flow channel 24 is provided in the air duct assembly 2. The air duct assembly 2 divides the box body 1 into a first air cavity 8 and a second air cavity 9. The first air cavity 8 and the second air cavity 9 intersect at one end of the air flow channel 24; the exhaust port 42 and the vent 11 can be connected to the other end of the air flow channel 24, and the first air cavity 8 is connected to the vent 11 to ensure the introduction of fresh air.

[0046] By controlling the regulating component, the air flow channel 24 is controlled to be connected to the vent 11 or the exhaust port 42 to realize the switching between the fresh air heating mode, the indoor air heating mode and the ventilation mode. In the fresh air heating mode, the regulating component controls the air flow channel 24 to be connected to the exhaust port 42, and the air flow channel 24 and the vent 11 are blocked. At this time, the vent 11 is connected to the first air cavity 8, and the outdoor fresh air flows from the vent 11 through the first air cavity 8. After the indoor air enters the second air cavity 9 from the air inlet 41, the outdoor fresh air and the indoor air enter the air flow channel 24 together and flow out from the exhaust port 42 to realize the purpose of fresh air heating. When the control and adjustment component controls the air flow channel 24 to be connected with the vent 11, and the air flow channel 24 and the exhaust port 42 are blocked, it is the exhaust ventilation mode. When the control and adjustment component controls the air flow channel 24 to be blocked with the vent 11, and the vent 11 and the first air chamber 8 are blocked, and the air flow channel 24 is connected with the exhaust port 42, the indoor air flows through the air flow channel 24 and is discharged from the exhaust port 42, realizing the indoor wind heating mode.

[0047] The fresh air heating device proposed in the present invention provides a variety of working modes. In the fresh air heating mode, fresh air heating is achieved by introducing fresh air to mix with indoor air, thereby increasing the air intake volume and reducing energy consumption; ventilation is adopted to increase the oxygen content concentration in the bathroom, thereby improving comfort.

[0048] In some embodiments of the present invention, a flow channel outlet 241 is disposed at the other end of the air flow channel 24 , and the exhaust port 42 , the vent 11 and the first air cavity 8 converge at the flow channel outlet 241 .

[0049] In some embodiments of the present invention, the control and adjustment component includes a first flap 7 and a second flap 6. The first flap 7 is rotatably provided on the box body 1. The first flap 7 flips to allow the flow channel outlet 241 to be connected to either the ventilation port 11 or the exhaust port 42. The second flap 6 is rotatably provided on the air duct component 2. The second flap 6 flips to connect the first air cavity 8 and the flow channel outlet 241, or to block the first air cavity 8 and the flow channel outlet 241.

[0050] It can be understood that the second flap 6 is flipped to connect or block the first air cavity 8 and the flow channel outlet 241, so as to control the fresh air, avoid the loss of air volume, increase the fresh air volume, and improve the comfort.

[0051] It is understandable that the box body 1 also includes a wind wheel assembly 3 and a heating assembly 5. The wind wheel assembly 3 is arranged in the air flow channel 24 and is located at the intersection of the first air cavity 8 and the second air cavity 9; the heating assembly 5 is arranged between the air flow channel 24 and the exhaust port 42.

[0052] Specifically, the fresh air heating device is installed and fixed on the wall, the vent 11 provided on the box body 1 is connected to the outdoor environment, the cover plate 4 faces the indoor, and the air inlet 41 and the air outlet 42 provided on the cover plate 4 are both connected to the indoor. The air duct assembly 2 is fixed in the box body 1, and the cover plate 4 is covered on the upper surface of the box body 1 to cover the air duct assembly 2. The cover plate 4 can prevent the air duct assembly 2 from falling, and can also play a role in local dust prevention, so as to prevent the static electricity generated by the electrical components in the box body 1 from adsorbing dust when working.

[0053] Reference Figure 2 and Figure 3 As shown, an air duct 24 is provided in the air duct assembly 2, and the air duct assembly 2 divides the box body 1 into a first air cavity 8 and a second air cavity 9. The first air cavity 8 and the second air cavity 9 intersect at the air duct 24. A wind wheel assembly 3 is provided at the intersection of the first air cavity 8, the second air cavity 9 and the air duct 24 to facilitate the air in the first air cavity 8 and the second air cavity 9 to flow into the air duct 24.

[0054] An air inlet 41 communicating with the indoor environment is formed on the cover plate 4 and / or the side wall of the box body 1 , and the air inlet 41 is communicated with the second air cavity 9 .

[0055] Specifically, the air inlet 41 is provided on the cover plate 4 and / or the side wall of the box body 1, and the efficiency of indoor air entering the second air cavity 9 can be improved by taking in air from all sides, thereby ensuring sufficient heating, improving efficiency, and reducing energy consumption. The fresh air heating device provided by the present invention has multiple working modes, including fresh air heating mode, ventilation mode, and indoor air heating mode.

[0056] Reference Figure 6 and Figure 7 As shown, in the fresh air heating mode, the first flap 7 flips downward to make the flow channel outlet 241 and the exhaust port 42 conductive, and the flow channel outlet 241 and the vent 11 are blocked by the first flap 7. At this time, the second flap 6 flips open, and the vent 11 is connected to the first air cavity 8. The outdoor fresh air enters the first air cavity 8 from the vent 11, and the indoor air enters the second air cavity 9 from the air inlet 41. Driven by the impeller assembly, the outdoor fresh air in the first air cavity 8 and the indoor air in the second air cavity 9 are mixed and enter the air flow channel 24, flow through the heating assembly 5, and flow out from the exhaust port 42 after heating, thereby achieving the purpose of fresh air heating. In this fresh air heating mode, the air intake volume is increased and the air intake energy consumption is reduced. At the same time, the mixed air only needs a small amount of heat to be raised to the specified temperature threshold, so as to ensure heating, reduce energy consumption, and improve efficiency.

[0057] Reference Figure 8 and Fig. 9 As shown, in the ventilation mode, the first flap 7 is flipped upward to make the flow channel outlet 241 communicate with the vent 11, and the flow channel outlet 241 and the exhaust port 42 are blocked by the first flap 7. At this time, the second flap 6 is flipped closed to block the vent 11 and the first air cavity 8, and the indoor air enters the second air cavity 9 from the air inlet 41. Driven by the wind wheel assembly 3, the indoor air enters the air flow channel 24 and then flows out from the vent 11 to achieve the purpose of ventilation.

[0058] In the traditional indoor wind heating mode, the first flap 7 flips downward to make the flow channel outlet 241 and the exhaust port 42 conductive, and the flow channel outlet 241 and the vent 11 are blocked by the first flap 7. At this time, the second flap 6 flips closed to block the vent 11 and the first wind cavity 8. The indoor air enters the second wind cavity 9 from the air inlet 41, and under the drive of the impeller assembly, enters the air flow channel 24, flows through the heating assembly 5, and is discharged into the room from the exhaust port 42 after heating, thereby heating the indoor air.

[0059] The fresh air heating device proposed in the present invention provides a variety of working modes. By introducing fresh air or adopting a ventilation method, the oxygen content concentration in the bathroom can be increased, thereby improving the comfort level.

[0060] Reference Figures 1 to 4As shown, in some embodiments of the present invention, the air duct assembly 2 includes a first air collecting plate 21, a second air collecting plate 22 and a mold plate 23 arranged between the first air collecting plate 21 and the second air collecting plate 22; the first air collecting plate 21, the second air collecting plate 22 and the mold plate 23 enclose an air flow channel 24, the first air collecting plate 21, the side wall of the box body 1 and the bottom plate of the box body 1 enclose a first air cavity 8; the second air collecting plate 22, the side wall of the box body 1 and the cover plate 4 enclose a second air cavity 9.

[0061] Specifically, the first air collecting plate 21 is sealed and connected to the lower part of the side wall of the box body 1 around, and the second air collecting plate 22 is sealed and connected to the upper part of the side wall of the box body 1 around, so as to ensure that the first air cavity 8 and the second air cavity 9 are spaced apart from each other, the first air cavity 8 is used for the flow of outdoor fresh air, and the second air cavity 9 is suitable for the flow of indoor air. The first air cavity 8 and the second air cavity 9 intersect in the air flow channel 24, so that both indoor air and outdoor fresh air can enter the air flow channel 24. Since the air volume of outdoor fresh air is small, it needs to be mixed with indoor air for heating, and the role of outdoor fresh air is to increase the oxygen content.

[0062] Reference Figure 3 As shown, in some embodiments of the present invention, a first air guide port 211 and a second air guide port 212 are provided on the first air collecting plate 21, the first air cavity 8 is connected to one end of the air channel 24 through the first air guide port 211, the first air cavity 8 and the channel outlet 241 meet at the second air guide port 212, the second flap 6 is arranged on the first air collecting plate 21 and corresponds to the position of the second air guide port 212, and the second flap 6 rotates to connect or block the first air cavity 8 and the channel outlet 241.

[0063] Specifically, a first air guide port 211 and a second air guide port 212 are provided on the first air collecting plate 21, and the second air guide port 212 and the vent 11 meet at the flow channel outlet 241. When the second flap 6 is in a flipped open state, outdoor fresh air flows from the vent 11 through the flow channel outlet 241 and enters the first air cavity 8. The outdoor fresh air in the first air cavity 8 enters the air flow channel 24 from the first air guide port 211 driven by the impeller assembly. At this time, the second flap 6 flips downward to block between the air flow channel 24 and the vent 11, thereby ensuring that the fresh air can enter the first air cavity 8.

[0064] Reference Figure 2 As shown, in some embodiments of the present invention, the wind wheel assembly 3 is fixedly mounted on the bottom plate of the box body 1 , and the wind wheel assembly 3 passes through the first air guide port 211 and is disposed in the air flow channel 24 .

[0065] In some embodiments of the present invention, the wind wheel assembly 3 includes a motor 31 and a centrifugal wind wheel 32 both disposed in the box body 1. The motor 31 is fixed on the bottom plate of the box body 1, and the driving end of the motor 31 is transmission-connected to the wind wheel to drive the wind wheel to rotate.

[0066] Specifically, the wind wheel assembly 3 includes a motor 31 and a centrifugal wind wheel 32. The motor 31 drives the centrifugal wind wheel 32 to rotate, thereby increasing the air flow rate at the intersection of the first wind cavity 8 and the second wind cavity 9 at the air flow channel 24, thereby increasing the pressure in the air flow channel 24, so that the outdoor fresh air in the first wind cavity 8 and the indoor air in the second wind cavity 9 flow into the air flow channel 24. Provide driving force for air flow. The motor 31 is fixed on the bottom plate of the box body 1, and the centrifugal wind wheel 32 is transmission-connected to the output end of the motor 31, and the centrifugal wind wheel 32 is driven to rotate by the motor 31.

[0067] Reference Figure 4 As shown, in some embodiments of the present invention, the second air collecting plate 22 is provided with a third air guide port 221 and a fourth air guide port 222, the third air guide port 221 and the first air guide port 211 are arranged opposite to each other, the fourth air guide port 222 and the second air guide port 212 are arranged opposite to each other, the second air cavity 9 is connected with one end of the air flow channel 24 through the third air guide port 221, the exhaust port 42 and the flow channel outlet 241 meet at the fourth air guide port 222, the first flap 7 is rotatably connected to the box body 1, and the first flap 7 flip cover is arranged on the second air guide port 212 or the fourth air guide port 222, so that the flow channel outlet 241 can be connected to the ventilation port 11 and the exhaust port 42.

[0068] Specifically, the third air guide port 221 arranged on the second air collecting plate 22 and the first air guide port 211 designed on the first air collecting plate 21 are arranged relative to each other. Specifically, the first air guide port 211 and the third air guide port 221 are both circular holes, that is, the first air guide port 211 and the third air guide port 221 are coaxially arranged. At this time, through the drive of the impeller assembly, the outdoor fresh air of the first air cavity 8 and the indoor air of the second air cavity 9 can flow into the air flow channel 24 at a uniform speed.

[0069] It can be understood that the second air guide port 212 and the fourth air guide port 222 are both square holes, and the projections of the second air guide port 212 and the fourth air guide port 222 are consistent. When the first flap 7 is covered on the second air guide port 212, the first flap 7 isolates the vent 11 and the air flow channel 24, and the air flow channel 24 is connected with the exhaust port 42 through the fourth air guide port 222. When the first flap 7 is covered on the fourth air guide port 222, the first flap 7 isolates the exhaust port 42 from the air flow channel 24, and the air flow channel 24 is connected with the vent.

[0070] The third air guide opening 221 and the first air guide opening 211 are arranged opposite to each other, which can avoid the loss of the air intake volume, thereby increasing the air volume and improving the comfort. The third air guide opening 221 and the first air guide opening 211 are circular holes, and the hole walls of the third air guide opening 221 and the first air guide opening 211 are arc surfaces folded toward the air flow channel 24 to improve the smoothness of the fresh air and the indoor air flowing into the air flow channel 24.

[0071] In some embodiments of the present invention, a sealing sleeve is provided on the outer periphery of the first flap 7 and the second flap 6 .

[0072] Specifically, the sealing sleeve is made of rubber or silicone, and is particularly elastic. When the first flap 7 is flipped downward and closed, the sealing sleeve abuts against the bottom of the box body 1, thereby ensuring that the first air cavity 8 is isolated from the vent 11; when the second flap 6 is covered on the second air guide port 212, the sealing sleeve abuts against the first air collecting plate 21, and when the second cover plate 4 is covered on the fourth air guide port 222, the sealing sleeve abuts against the second air collecting plate 22. Since the sealing sleeve is elastic, under the action of contact friction, air tightness can be ensured to avoid airflow leakage.

[0073] In some embodiments of the present invention, the heating assembly 5 includes a mounting frame and a heater 52 arranged in the mounting frame. The mounting frame is fixedly mounted on the fourth air guide port 222, and the mounting frame is sealed and connected to the cover plate 4. The gas in the air flow channel 24 flows through the flow channel outlet 241 and the fourth air guide port 222, and is discharged from the exhaust port 42 after being heated by the heater 52.

[0074] It can be understood that the purpose of the fresh air heating device is to increase the temperature in the bathroom while ensuring sufficient oxygen content concentration. The increase in oxygen content concentration can be achieved by introducing fresh air. To increase the temperature, a heating component 5 needs to be set in the exhaust port 42. In some embodiments of the present invention, the heating component 5 includes a mounting frame and a heater 52. The mounting frame is fixedly mounted on the fourth air guide port 222, and the heater 52 is arranged in the mounting frame. In the fresh air heating mode, the heater 52 is turned on, and the outdoor fresh air and indoor air are driven by the wind wheel assembly 3 to flow into the air flow channel 24. Then, in the process of passing through the fourth air guide port 222, they are heated in the heater 52 and then discharged from the exhaust port 42 to achieve the heating purpose.

[0075] In some embodiments of the present invention, a first driving member and a second driving member are further included in the box body 1, and the driving end of the first driving member is transmission-connected to the first flap 7 to drive the first flap 7 to rotate, and the driving end of the second driving member is transmission-connected to the second flap 6 to drive the second flap 6 to rotate.

[0076] Specifically, the first driving member and the second driving member are both arranged in the box body 1, the first driving member drives the first flap 7 to rotate, and the second driving member drives the second flap 6 to rotate. A position sensor for detecting the position parameters of the first flap 7 and the second flap 6 is also arranged in the box body 1. The controller is connected to the first driving member, the second driving member and the position sensor for communication, and controls the start and shut down of the first driving member and the second driving member to adjust the position of the first flap 7 and the second flap 6, thereby realizing the adjustment of multiple working modes. In some embodiments of the present invention, the adjustment of the two modes of fresh air heating and ventilation is realized by turning over the first flap 7 and the second flap 6, and the introduction of fresh air and the exhaust of indoor air are realized through a vent 11, which simplifies the structure, avoids the layout of multiple pipelines, and reduces costs.

[0077] It is understandable that an exhaust fan may be added to the exhaust port 42 to increase the air flow rate.

[0078] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A fresh air heating device, characterized in that: include: The box body (1) has a ventilating opening (11) on its side wall which communicates with the outside of the room; A cover plate (4) is arranged on the box body (1), and an exhaust port (42) communicating with the indoor room is provided on the cover plate (4); An air duct component (2) is arranged in the housing (1), a first air cavity (8) is formed between the lower surface of the air duct component (2) and the housing (1), a second air cavity (9) is formed between the upper surface of the air duct component (2) and the cover plate (4), an air flow channel (24) is defined in the air duct component (2), one end of which is connected to the first air cavity (8) and the second air cavity (9), the exhaust port (42) and the ventilation port (11) can both be connected to the other end of the air flow channel (24), the first air cavity (8) can be connected to the ventilation port (11), an air inlet (41) connected to the room is provided on the side wall of the cover plate (4) and / or the housing (1), and the second air cavity (9) is connected to the air inlet (41); The control and adjustment component is suitable for controlling the other end of the air flow channel (24) to be connected to the ventilation port (11) or the exhaust port (42), and controlling the first air cavity (8) to be connected to or blocked from the ventilation port (11), so as to realize switching between the fresh air heating mode, the indoor air heating mode and the ventilation mode.

2. The fresh air heating device according to claim 1, characterized in that: The other end of the air flow channel (24) is provided with a flow channel outlet (241), and the exhaust port (42), the ventilation port (11) and the first air cavity (8) converge at the flow channel outlet (241).

3. The fresh air heating device according to claim 2, characterized in that: The control and adjustment component comprises a first flap (7) and a second flap (6); the first flap (7) is rotatably disposed on the box body (1); the first flap (7) flips over to allow the flow channel outlet (241) to be connected to either the ventilation port (11) or the exhaust port (42); the second flap (6) is rotatably disposed on the air duct component (2); the second flap (6) flips over to connect the first air cavity (8) and the flow channel outlet (241), or to block the first air cavity (8) and the flow channel outlet (241).

4. The fresh air heating device according to claim 3 is characterized in that: Sealing sleeves are provided on the outer peripheries of the first flap (7) and the second flap (6).

5. The fresh air heating device according to claim 3 or 4, characterized in that: The air duct assembly (2) comprises a first air collecting plate (21), a second air collecting plate (22) and a mold plate (23) arranged between the first air collecting plate (21) and the second air collecting plate (22); the first air collecting plate (21), the second air collecting plate (22) and the mold plate (23) together form the air flow channel (24); the first air collecting plate (21), the side wall of the box body (1) and the bottom plate of the box body (1) together form the first air cavity (8); the second air collecting plate (22), the side wall of the box body (1) and the cover plate (4) together form the second air cavity (9).

6. The fresh air heating device according to claim 5, characterized in that: The first air collecting plate (21) is provided with a first air guide port (211) and a second air guide port (212); the first air cavity (8) is connected to one end of the air flow channel (24) through the first air guide port (211); the first air cavity (8) and the flow channel outlet (241) meet at the second air guide port (212); the second flap (6) is arranged on the first air collecting plate (21) and corresponds to the position of the second air guide port (212); the second flap (6) flips to connect the first air cavity (8) and the flow channel outlet (241), or blocks the first air cavity (8) and the flow channel outlet (241).

7. The fresh air heating device according to claim 6, characterized in that: The second air collecting plate (22) is provided with a third air guide port (221) and a fourth air guide port (222); the second air cavity (9) is connected to one end of the air flow channel (24) through the third air guide port (221); the exhaust port (42) and the flow channel outlet (241) meet at the fourth air guide port (222); the first flap (7) is rotatably connected to the box body (1); the first flap (7) flip cover is arranged on the second air guide port (212) or the fourth air guide port (222), so that the flow channel outlet (241) is selectively connected to the ventilation port (11) or the exhaust port (42).

8. The fresh air heating device according to claim 7, characterized in that: The third flow guide opening (221) and the first flow guide opening (211) are arranged opposite to each other, and the fourth flow guide opening (222) and the second flow guide opening (212) are arranged opposite to each other.

9. The fresh air heating device according to claim 7, characterized in that: The third air guide opening (221) and the first air guide opening (211) are circular holes, and the hole walls of the third air guide opening (221) and the first air guide opening (211) are arc surfaces folded toward the air flow channel (24).

10. The fresh air heating device according to claim 7, characterized in that: It also comprises a wind wheel assembly (3), wherein the wind wheel assembly (3) is fixedly mounted on the bottom plate of the box body (1), and the wind wheel assembly (3) passes through the first air guide port (211) and is arranged in the air flow channel (24).

11. The fresh air heating device according to claim 10, characterized in that: The wind wheel assembly (3) comprises a motor (31) and a centrifugal wind wheel (32) both of which are arranged in the housing (1); the motor (31) is fixed on the bottom plate of the housing (1); and the driving end of the motor (31) is transmission-connected to the wind wheel to drive the wind wheel to rotate.

12. The fresh air heating device according to claim 11, characterized in that: It also comprises a heating component (5) which is arranged between the air flow channel (24) and the air outlet (42), and the heating component (5) is suitable for heating the air flowing from the air flow channel (24) to the air outlet (42).

13. The fresh air heating device according to claim 12, characterized in that: The heating assembly (5) comprises a mounting frame and a heater (52) arranged in the mounting frame; the mounting frame is fixedly mounted on the fourth air guide port (222), and the mounting frame is sealedly connected to the cover plate (4); the gas in the air flow channel (24) flows through the flow channel outlet (241) and the fourth air guide port (222), and is discharged from the exhaust port (42) after being heated by the heater (52).

14. The fresh air heating device according to claim 3 or 4, characterized in that: It also includes a first driving member and a second driving member arranged in the box body (1), wherein the driving end of the first driving member is transmission-connected to the first flap (7) to drive the first flap (7) to rotate, and the driving end of the second driving member is transmission-connected to the second flap (6) to drive the second flap (6) to rotate.

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