Hidden type double-fan fan

Abstract

The utility model provides a hidden type double-fan fan, which belongs to the field of fresh air ventilation and heating electric appliances and comprises a host and a host cover plate, the host comprises a case and a case cover plate, the host cover plate covers the host, an interlayer air inlet duct is formed between the host cover plate and the case cover plate, a first air inlet communicated with the interlayer air inlet duct is formed in the host cover plate, and a second air inlet communicated with the interlayer air inlet duct is formed in the case cover plate. Two second air inlets communicated with the interlayer air inlet duct are formed in the case cover plate; a first fan and a second fan of the host are positioned in the lower part of the case cover plate, and the positions of the first fan and the second fan correspond to the two second air inlets respectively; the main machine is further provided with a main machine air exchange port communicated with the first draught fan and a main machine air outlet communicated with the second draught fan. Through the double-layer interlayer air duct design of the host cover plate and the case cover plate, the air inlet duct is designed in the machine body, and the air volume is not lost before and after the product is installed.

Description

Technical Field

[0001] This utility model relates to the field of fresh air exchange and heating appliances, and in particular to a concealed dual-fan fan. Background Technology

[0002] In the field of fresh air ventilation and heating, whether it is a bathroom heater, kitchen heater, electric heater or air conditioner, they all use centrifugal fans to heat, blow, ventilate and dehumidify indoor air.

[0003] Centrifugal fan heaters, due to the physical characteristics of their fans, generate airflow through centrifugal ejection, resulting in an air intake direction perpendicular to the air outlet direction. Therefore, centrifugal heaters have strict requirements regarding the shape and size of the front air intake area. If a centrifugal fan heater is forcibly paired with a pre-installed panel, the small overlap between the fan inlet and the linear air inlet will severely reduce airflow and draw air from other areas within the ceiling cavity. Given the often substandard hygiene above the ceiling due to renovations, this air drawn in by the fan will cause environmental pollution. Furthermore, during the heating process, air above the ceiling that doesn't require heating is also included in the heating cycle, resulting in energy waste. Therefore, this utility model was developed to address these issues. Utility Model Content

[0004] In view of the above, the primary problem that this utility model aims to solve is that the traditional fan inlet loses a lot of air volume due to the small overlap area with the linear air inlet, and also draws air from other areas of the ceiling cavity, causing pollution.

[0005] Therefore, this utility model provides a concealed dual-fan fan, characterized in that it includes a main unit and a main unit cover. The main unit includes a chassis and a chassis cover. The main unit cover is placed on the main unit and forms a sandwich air intake duct between it and the chassis cover. The main unit cover has a first air inlet that connects to the sandwich air intake duct. The chassis cover has two second air inlets that connect to the sandwich air intake duct. The first fan and the second fan of the main unit are located below the chassis cover and are respectively positioned to receive air from the two second air inlets. The main unit also has a main unit ventilation port that connects to the first fan and a main unit air outlet that connects to the second fan.

[0006] Preferably, the main unit's air outlet is located at the opening of the chassis and is separated from the interlayer air inlet duct by a partition.

[0007] Preferably, the chassis cover is further provided with an air inlet diverter plate, which divides the interlayer air inlet duct into a first fan air inlet duct and a second fan air inlet duct, wherein the first fan air inlet duct supplies air to the first fan, and the second fan air inlet duct supplies air to the second fan.

[0008] Preferably, the main unit cover is also provided with a first air outlet, the position of which is connected to the air outlet of the main unit.

[0009] Preferably, the first air outlet and the first air inlet are arranged linearly.

[0010] Preferably, it also includes a panel, which is disposed on the main unit cover plate, and the panel has a panel air inlet with a position corresponding to the first air inlet and a panel air outlet with a position corresponding to the first air outlet.

[0011] Preferably, the panel is implemented as a display panel with a light panel; or, the panel is implemented as an integrated ceiling panel, a honeycomb panel, or a gypsum board.

[0012] Preferably, the chassis is provided with an independent ventilation chamber and an exhaust chamber, the first fan is located in the ventilation chamber and the second fan is located in the exhaust chamber; the main unit's air vent is connected to the ventilation chamber and the main unit's air outlet is connected to the exhaust chamber.

[0013] Preferably, the chassis cover is disposed on the air outlet chamber and the ventilation chamber; the main unit ventilation port is disposed on the side of the chassis, and the chassis cover is recessed on the side facing the ventilation chamber to form an expansion groove, and the expansion groove and the ventilation chamber form a ventilation expansion duct for the main unit ventilation port.

[0014] Preferably, it also includes a heating component and a control component, wherein the heating component is located at the air outlet of the main unit, and the control component is located in the chassis and controls at least the heating component, the first fan and the second fan.

[0015] The above technical solutions can be expressed individually or in combination to achieve the following beneficial effects:

[0016] With a double-layer sandwich air duct design in the main unit cover and chassis cover, the air intake duct is designed inside the body, resulting in zero airflow loss before and after installation. Compared with traditional direct-down lighting panels, there is no need to raise the main unit to increase the air intake space of the fan, and full airflow output can be obtained without airflow loss. Moreover, the hidden air intake duct design of the entire main unit can eliminate the need for a traditional panel and can be used directly with the ceiling panel opening, presenting a simple linear design on the ceiling panel.

[0017] This design scheme displays only the linear arrangement of the first air inlet and the first air outlet on the indoor side. It follows a minimalist, high-end, and timeless design with CMF (Color, Material, Finish), making it highly recognizable compared to mainstream products on the market and in line with the aesthetics of the new generation of young people.

[0018] This product is compatible with 300mm wide integrated ceilings, honeycomb panels, and gypsum board ceilings.

[0019] By aligning the first air outlet and the first air inlet in a straight line, the panel can be designed as a single-blade design, eliminating the need for additional air inlets and maximizing the panel's seamless appearance.

[0020] In traditional dual-fan fans, when the first and second fans operate simultaneously, the air intake from the same point causes the two impellers to compete for airflow, resulting in varying levels of airflow noise at the intake. This solution uses an intake splitter to rationally divide the airflow path between the two fan impellers, avoiding this airflow competition and ensuring quiet operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an anatomical diagram of the main unit and the main unit cover in this utility model.

[0023] Figure 3 This is a diagram of the internal structure of the host computer in this utility model.

[0024] Figure 4 This is a structural diagram of the back of the chassis cover in this utility model.

[0025] Figure 5 This is a schematic diagram of the panel assembly in this utility model.

[0026] The components are as follows: 1. Main unit; 10. Mezzanine air inlet duct; 101. First fan air inlet duct; 102. Second fan air inlet duct; 11. Chassis; 110. Main unit air exchange port; 111. Air exchange chamber; 112. Air outlet chamber; 113. Main unit air outlet; 12. Chassis cover; 120. Expansion slot; 121. Air exchange expansion duct; 122. Second air inlet; 123. Partition; 13. Air inlet splitter; 14. First fan; 15. Second fan; 2. Main unit cover; 21. First air inlet; 22. First air outlet; 3. Control components; 4. Heating components; 5. Panel; 51. Panel air inlet; 52. Panel air outlet; 53. Light panel. Detailed Implementation

[0027] The following description is provided to enable those skilled in the art to implement and use the present invention and to incorporate it into specific application contexts. Various modifications and uses in different applications will be readily apparent to those skilled in the art, and the general principles defined herein are applicable to a wide range of embodiments. Therefore, the present invention is not limited to the embodiments given herein, but should be granted the broadest scope consistent with the principles and novel features disclosed herein.

[0028] In the following detailed description, numerous specific details are set forth to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that practice of the present invention is not necessarily limited to these specific details. In other words, well-known structures and devices are shown in block diagram form without detailed representation to avoid obscuring the present invention.

[0029] Readers should note all documents and references submitted concurrently with this specification and open to public inspection, the contents of which are incorporated herein by reference. Unless otherwise expressly stated, all features disclosed in this specification (including any appended claims, abstracts, and drawings) may be replaced by alternative features for the same, equivalent, or similar purposes. Therefore, unless explicitly stated otherwise, each disclosed feature is merely one example of a set of equivalent or similar features.

[0030] Note that, where used, the markings left, right, front, back, top, bottom, front, back, clockwise, and counterclockwise are merely for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative position and / or orientation between different parts of an object. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

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

[0032] Note that, in practice, "further," "preferably," "even further," and "more preferably" are simply starting points for describing another embodiment based on the foregoing embodiments. The combination of the content following "further," "preferably," "even further," or "more preferably" with the foregoing embodiments constitutes the complete configuration of another embodiment. Any combination of several "further," "preferably," "even further," or "more preferably" settings following the same embodiment can form yet another embodiment.

[0033] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0034] Please refer to Figures 1-5 This embodiment describes a concealed dual-fan fan, the structure of which includes a main unit 1 and a main unit cover 2. The main unit 1 includes a chassis 11 and a chassis cover 12. The main unit cover 2 covers the main unit 1 and forms a sandwich air intake duct 10 between it and the chassis cover 12. The main unit cover 2 has a first air inlet 21 that connects to the sandwich air intake duct 10. The chassis cover 12 has two second air inlets 122 that connect to the sandwich air intake duct 10. The first fan 14 and the second fan 15 of the main unit 1 are located below the chassis cover 12 and are respectively positioned to receive air through the two second air inlets 122. The main unit 1 also has a main unit ventilation port 110 that connects to the first fan 14 and a main unit air outlet 113 that connects to the second fan 15. This embodiment utilizes a double-layer sandwich air duct design with the main unit cover 12 and the chassis cover 2 to house the air intake duct inside the unit, resulting in zero airflow loss before and after installation. Compared to traditional direct-down lighting panels, it eliminates the need to elevate the main unit to increase the fan's air intake space, achieving full airflow output without any loss. Furthermore, the concealed air intake duct design of the entire main unit eliminates the need for a traditional panel, allowing direct integration with ceiling panel openings and presenting a clean, linear design within the ceiling panel.

[0035] The main unit's air outlet 113 is generally positioned facing indoors, typically located on the top surface of the device. Therefore, in a preferred embodiment of this case, the main unit's air outlet 113 is located at the opening of the chassis 11 and is separated from the interlayer air inlet duct 10 by a partition 123 to prevent interference between the air outlet and inlet. Furthermore, the partition 123 and the chassis cover 12 can be integrally formed, with the chassis cover 12 structurally designed to fit over the chassis opening, reserving an area for the main unit's air outlet 113.

[0036] Given common market standards, side ventilation and top exhaust heating are the optimal design for heaters and bathroom heaters. In this embodiment, the main unit's ventilation port 110 is located on the side of the chassis 11. The main unit cover 2 has a first air inlet 21 and a first air outlet 22. The first air outlet 22 is connected to the main unit's air outlet 113 for air discharge. The first air inlet 21 faces the room after the device is installed to draw in indoor air for ventilation or heating.

[0037] Furthermore, modern design values ​​simplicity, and most commercially available air vents and inlets feature air intake from all sides and exhaust from the top, forming an integrated panel with components such as light panels. In this embodiment, however, the first air outlet 22 and the first air inlet 21 are arranged linearly. Correspondingly, this embodiment also includes a panel 5, which is concealed on the main unit cover 2. The panel 5 has a panel air inlet 51 positioned corresponding to the first air inlet 21 and a panel air outlet 52 positioned corresponding to the first air outlet 22. The entire panel 5 displays only a linear air vent, providing a visually clean and simple appearance. Furthermore, the panel 5 is implemented as follows... Figure 5 The display panel 5 shown has a light panel 53; alternatively, the panel 5 may be implemented as a ceiling panel. It is particularly noteworthy that the panel 5 in this embodiment can be directly implemented as an integrated ceiling, honeycomb panel, or gypsum board ceiling. Taking an integrated ceiling as an example, after the fan is installed, a panel air inlet 51 and a panel air outlet 52 corresponding to the first air inlet 21 and the first air outlet 22 are opened in the integrated ceiling.

[0038] In traditional fans, both impellers operate simultaneously. When air enters from one location, the two impellers compete for airflow, resulting in varying levels of airflow noise at the intake. For a preferred embodiment of this work, please refer to... Figure 2 The chassis cover 12 is also equipped with an air inlet diverter 13, which divides the interlayer air inlet duct 10 into a first fan air inlet duct 101 and a second fan air inlet duct 102. The first fan air inlet duct 101 receives air from the first fan 14, and the second fan air inlet duct 102 receives air from the second fan 15. By rationally dividing the airflow paths of the two fans, the phenomenon of air competition between the two impellers can be avoided, thereby ensuring quiet operation of the product.

[0039] Furthermore, please combine Figure 2 , Figure 3 and Figure 4The chassis 11 contains two independent ventilation chambers 111 and 112. A first fan 14 is located in the ventilation chamber 111, and a second fan 15 is located in the 112. The main unit's air vent 110 is connected to the ventilation chamber 111, and the main unit's air outlet 113 is connected to the 112. Specifically, a chassis cover 12 covers the 112 and the ventilation chamber 111. The main unit's air vent 110 is located on the side of the chassis, and the chassis cover 12 is recessed on the side facing the ventilation chamber 111 to form an expansion groove 120. The expansion groove 120 and the ventilation chamber 111 form a ventilation expansion duct 121 for the main unit's air vent 110. Therefore, while reducing the overall height of the unit, the reverse protrusion of the expansion groove 120 can be accommodated in the interlayer air inlet duct 10 without affecting the ventilation efficiency.

[0040] As an adaptation for the fan's heating and cooling functions, this embodiment also includes a heating component 4 and a control component 3. The heating component 4 is located at the air outlet 113 of the main unit, and the control component 3 is located in the chassis 11 and controls at least the heating component 4, the first fan 14, and the second fan 15. Specifically, the heating component 4 is a PTC component located at the air outlet 113 of the main unit for heating and generating warm air; while the control component 3 is an electrical control module, which can be designed inside the chassis 11. Preferably, a partition can be used to divide the interior of the chassis 11 into an installation compartment for the electrical control module.

[0041] The beneficial effects of this embodiment are:

[0042] With the double-layer sandwich air duct design of the main unit cover 2 and the chassis cover 12, the air intake duct is designed inside the body, and the product has zero air volume loss before and after installation. Compared with the traditional direct-down lighting panel 53, there is no need to raise the main unit 1 to increase the air intake space of the fan, and the full air volume output can be obtained without air volume loss. Moreover, the hidden air intake duct design of the entire main unit 1 can eliminate the need for the traditional panel 5 and can be used directly with the ceiling panel opening, presenting a simple linear design on the ceiling panel.

[0043] This design features only the linearly arranged first air inlet 21 and first air outlet 22 on the indoor side, adhering to a minimalist, high-end, and aesthetically pleasing design with CMF (Color, Material, Finish). It is highly recognizable compared to mainstream products on the market and aligns with the aesthetic preferences of the new generation of young people.

[0044] This product is compatible with 300mm wide integrated ceilings, honeycomb panels, and gypsum board ceilings.

[0045] By aligning the first air outlet 22 and the first air inlet 21 in a straight line, the panel 5 can be designed as a single-blade design, eliminating the need for additional air inlets on the panel 5 and maximizing the overall aesthetic integrity of the panel 5.

[0046] In traditional dual-fan fans, when the first fan 14 and the second fan 15 operate simultaneously, the air intake from the same point causes the two impellers to compete for airflow, resulting in varying levels of airflow noise at the intake. This solution uses the intake splitter 13 to rationally divide the airflow paths of the two fan impellers, thus avoiding this airflow competition and ensuring quiet operation of the product.

[0047] Those skilled in the art can make various modifications to this utility model based on the above description. Therefore, without departing from the spirit of the claims, certain details in the embodiments should not be construed as limiting the utility model, and the scope of protection of this utility model shall be defined by the appended claims.

Claims

1. A concealed double-fan fan, characterized in that, The host and the host cover plate, the host includes the cabinet and the cabinet cover plate, the host cover plate covers the cabinet and forms the sandwich air inlet duct between the cabinet cover plate, the first air inlet of the host cover plate is opened and communicated with the sandwich air inlet duct, the cabinet cover plate is opened and communicated with the sandwich air inlet duct two second air inlets: the first fan and the second fan of the host are located below the cabinet cover plate and the position is respectively corresponding to the two second air inlets; The host is also provided with the host air outlet and the host air outlet connected with the second fan.

2. The concealed dual-fan fan of claim 1, wherein, The host air outlet is located at the cabinet opening and is separated from the sandwich air inlet duct by a partition.

3. The concealed dual-fan fan of claim 2, wherein, The cabinet cover plate is also provided with an air inlet shunt, the air inlet shunt separates the sandwich air inlet duct into a first fan air inlet duct and a second fan air inlet duct, the first fan air inlet duct is in the first fan, and the second fan air inlet duct is in the second fan.

4. The concealed dual-fan fan of claim 2, wherein, The host cover plate is also provided with a first air outlet, and the first air outlet is located and communicated with the host air outlet.

5. The concealed dual-fan fan of claim 4, wherein, The first air outlet and the first air inlet are linearly arranged.

6. The concealed dual-fan fan of claim 4, wherein, It also includes a panel, the panel is concealed on the host cover plate, the panel has a panel air inlet corresponding to the first air inlet and a panel air outlet corresponding to the first air outlet.

7. The concealed dual-fan fan of claim 6, wherein, The panel is implemented as a display panel with a lamp panel, or the panel is implemented as an integrated ceiling panel, a honeycomb panel and a gypsum panel.

8. The concealed dual-fan fan of claim 1, wherein, The cabinet is provided with a ventilation air cabin and an air outlet air cabin, the first fan is located in the ventilation air cabin, and the second fan is located in the air outlet air cabin; The host air outlet is connected with the ventilation air cabin, and the host air outlet is connected with the air outlet air cabin.

9. The concealed dual-fan fan of claim 8, wherein, The cabinet cover plate covers the air outlet air cabin and the ventilation air cabin; The host air outlet is located on the side of the cabinet, the cabinet cover plate is recessed to form an expansion groove facing the ventilation air cabin, and the expansion groove and the ventilation air cabin form a ventilation expansion air duct of the host air outlet.

10. The concealed dual-fan fan of claim 1, wherein, It also includes a heating assembly and a control assembly, the heating assembly is arranged at the host air outlet, and the control assembly is arranged in the cabinet and at least controls the heating assembly, the first fan and the second fan.

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