Integrated air outlet pipe for ceiling and fan using same

Abstract

The application relates to an air outlet pipe for integrated ceiling and a fan using the same. The existing fan has the defects of complex assembly and low air flow circulation efficiency. The application comprises a pipe body, the pipe body is provided with an air outlet and an air inlet, the air inlet is arranged on the front end surface of the pipe body, the air outlet is arranged on the bottom surface of the pipe body along the pipe body axis, and the air flow flowing along the pipe body is uniformly discharged step by step through the air outlets along the way. The air outlet pipe is independently processed and formed, air flow is received through connection with the main machine, the air flow can flow along the pipe body and be uniformly discharged step by step through the air outlets, the assembly efficiency is improved by reducing the number of components, the assembly difficulty is prevented from being increased due to the sealing requirement between components, the assembly efficiency is improved, and the air exchange area is increased by arranging multiple air outlets, and the air flow circulation efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of integrated ceiling systems, and more specifically to an air outlet duct. Background Technology

[0002] Existing integrated ceiling fans consist of a main unit with a built-in fan and an electrical panel mounted on the integrated ceiling. The electrical panel has through holes, and the main unit has an air inlet and an air outlet. The air outlet and the electrical panel are connected by a flexible hose. During installation, both ends of the flexible hose are sealed to the air outlet and the through hole, respectively. The airflow generated by the main unit flows along the hose and is exhausted externally. This structure has the following drawbacks: the airflow generated by the main unit needs to flow through the hose and the electrical panel sequentially before being exhausted, resulting in many components and complex assembly. It also requires high sealing between components, reducing assembly efficiency; the flexible hose sidewalls can be folded and bent, increasing the hose's air resistance and affecting airflow velocity; the through holes are circular or square, limiting airflow to a limited area below the through holes, affecting the efficiency of airflow exchange. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides an integrated ceiling air outlet duct and a fan using it, replacing the original flexible hoses and electrical panels with the air outlet duct, which not only facilitates assembly but also reduces wind resistance, increases the air supply area, and improves the uniformity of air supply.

[0004] This invention is achieved through the following method: an integrated ceiling air duct includes a duct body with an air outlet and an air inlet. The air inlet is located on the front end face of the duct body, and the air outlet is located on the bottom face of the duct body along its axis. Airflow flowing along the duct body is discharged evenly through the air outlets along its path. The air duct is independently manufactured and connected to a main unit to receive airflow, allowing the airflow to flow along the duct body and be discharged evenly through the air outlets. This improves assembly efficiency by reducing the number of components and preventing increased assembly difficulty due to sealing requirements between components. Furthermore, the multiple air outlets increase the ventilation area and improve airflow efficiency. The air outlets are located at the bottom of the duct body, which facilitates the interception of airflow flowing along the duct axis and ensures even exhaust of air from the outlets within a larger indoor area.

[0005] Preferably, the pipe body is wider at the front and narrower at the back, with a smooth inner wall. The radial cross-section of the pipe body is circular, and the diameter is uniformly reduced along the axial direction. Airflow flows and converges along the inner wall of the pipe body before being discharged through the corresponding outlet. The smooth inner wall reduces wind resistance, and the circular radial cross-section guides the airflow, ensuring it flows and converges along the inner wall to the outlet, thereby increasing airflow velocity. Uniform diameter reduction means that the diameter difference between two radial cross-sections at equal intervals along the pipe's axis is the same, so that the inner wall of the pipe body tapers smoothly from front to back.

[0006] Preferably, the bottom surface of the pipe body has a horizontal surface arranged along its axial direction, and the air outlet is opened on the horizontal surface. The two side edges of the horizontal surface are connected by an arc-shaped inner sidewall. The airflow converges along the inner sidewall of the pipe body to the horizontal surface and then flows into the air outlet, ensuring that the air velocity is uniform in all areas of the air outlet cross-section.

[0007] Preferably, the air inlet is square, and the axial projection of the pipe body falls within the air inlet. A square air inlet facilitates a sealed connection with the main unit's exhaust port and also reduces the requirements for machining precision.

[0008] Preferably, the bottom of the pipe body has vertically penetrating grooves arranged along its axial direction. Several equidistant guide plates are provided within the grooves to divide the groove cavities into air outlets, ensuring a balanced airflow at each outlet. By using guide plates within the groove cavities to divide and form linearly arranged air outlets, the guide plates both intercept airflow from the pipe body and guide the airflow in a predetermined direction.

[0009] Preferably, the lower end of the groove extends downward to form an annular rim, and the bottom edge of the guide plate is flush with the bottom edge of the rim to form a tubular air outlet. The annular rim surrounds the air outlet, ensuring that the airflow inside the pipe can be guided to the area below the decorative panel and discharged outwards. This effectively improves the tightness of the fit between the air outlet and the decorative panel, and also ensures that the annular rim vertically passes through the assembly gap between adjacent decorative panels, allowing the airflow to be smoothly discharged from the pipe into the indoor space.

[0010] Preferably, the guide plates are all equidistant from each other perpendicular to the axial direction of the pipe body, and the top of the guide plates is arc-shaped and faces the air inlet. The guide plates are arranged parallel to each other so that the grooves are divided to form several air outlets with the same radial cross-sectional profile, ensuring that the airflow flowing along the pipe body is uniformly intercepted and discharged, and ensuring that the airflow in each air outlet is balanced.

[0011] Preferably, the top edge of the front guide plate is lower than the top edge of the rear guide plate, so that the top edges of the guide plates rise sequentially from front to back. The top edges of the guide plates are set to increase in height from front to back. By reducing the height of the front guide plate, the proportion of airflow interception is reduced, and by raising the rear guide plate, the proportion of airflow interception is increased. When the airflow decreases as the distance it flows through the pipe increases, the airflow in each air outlet is balanced by setting guide plates with differentiated interception ratios, thereby improving the airflow exchange effect.

[0012] Preferably, the guide plates are arranged at equal intervals to ensure that the air outlets are also equally spaced. This arrangement of the air outlets at equal intervals improves the uniformity of airflow and thus enhances the indoor air exchange effect.

[0013] Preferably, the guide plates are arranged in a sparse-to-dense-to-dense configuration. Since the airflow is larger in the front section of the pipe, the flow rate intercepted is reduced by decreasing the number of guide plates. Since the airflow is smaller in the rear section of the pipe, the flow rate intercepted is increased by increasing the number of guide plates, thus ensuring a balanced flow rate at each air outlet.

[0014] Preferably, the groove is elongated and has rounded ends. The waist-shaped groove is aesthetically pleasing and ensures that gas flows smoothly into the corresponding outlets at the front and rear ends of the pipe.

[0015] Preferably, the bottom surface of the tube extends downward to form a support leg with a flat supporting surface, the supporting bottom surface being higher than the bottom edge of the annular rim. The support leg and the tube are integrally formed, the top edge of the support leg is fixed to the bottom surface of the tube, and the bottom of the support leg forms a flat supporting surface. During installation, the tube overlaps the corresponding keel assembly from top to bottom through the flat supporting surface, so that the annular rim is suspended in the assembly gap between adjacent decorative panels, ensuring that the bottom edge of the annular rim and the bottom surface of the decorative panel are flush.

[0016] Preferably, there are at least four support legs, which are distributed on both the front and rear sides of the annular edging. Increasing the number of support legs improves the connection stability of the air outlet duct, ensuring that the air outlet duct is always in a horizontal position. This ensures that the air outlet duct inlet and the main unit exhaust outlet are sealed together, and also ensures that the annular edging is vertically inserted into the assembly gap, thus ensuring the flatness and aesthetics of the bottom surface of the decorative panel.

[0017] Preferably, the sidewall of the support leg is fixedly connected to the outer wall of the annular rim, which effectively improves the structural strength of the support leg and ensures that the flat support surface remains horizontal.

[0018] A fan using an exhaust duct includes a main unit with a built-in fan. An exhaust port is provided on the outer wall of the main unit, and an exhaust duct is fixedly connected to the side of the main unit. The air inlet of the exhaust duct is sealed and connected to the exhaust port. The fan and exhaust duct are manufactured separately and assembled separately during assembly. This reduces assembly difficulty by decreasing the size of the fan and effectively increases the airflow range and improves airflow efficiency.

[0019] The beneficial effects of the present invention are as follows: the air outlet duct is independently processed and formed, and receives airflow by connecting with the main unit, so that the airflow can flow along the duct body and be discharged evenly by the air outlet step by step. This not only improves assembly efficiency by reducing the number of parts and prevents the increase in assembly difficulty due to the sealing requirements between the parts, but also increases the ventilation area by setting multiple air outlets, thereby improving airflow efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the air outlet duct structure;

[0021] Figure 2 This is a schematic diagram of the air outlet structure of the air outlet pipe;

[0022] Figure 3 This is a schematic diagram of the assembly structure of the air outlet duct;

[0023] In the diagram: 1. Pipe body, 2. Air outlet, 3. Air inlet, 4. Horizontal plane, 5. Guide plate, 6. Circular rim, 7. Flat support surface, 8. Support leg. Detailed Implementation

[0024] The essential features of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] like Figure 1 and 2 The diagram illustrates an integrated ceiling air duct, comprising a duct body 1. The duct body 1 has an air outlet 2 and an air inlet 3. The duct body 1 is wider at the front and narrower at the back. The air inlet 3 is located on the front end face of the duct body 1. The air outlets 2 are equidistantly spaced along the axis of the duct body 1 on its bottom surface. Airflow along the duct body is evenly discharged through the air outlets 2. The air duct is independently manufactured and connected to a main unit to receive airflow, allowing the airflow to flow along the duct body 1 and be evenly discharged through the air outlets 2. This design improves assembly efficiency by reducing the number of components and preventing increased assembly difficulty due to sealing requirements between components. Furthermore, the multiple air outlets 2 increase the ventilation area and improve airflow efficiency.

[0026] In this embodiment, the pipe body 1 is thicker at the front and thinner at the back. By reducing the radial cross-sectional size of the pipe body 1, it can converge the airflow and ensure that the airflow inside the pipe body 1 can be smoothly discharged evenly through the air outlets 2 along the way. This prevents some air outlets 2 from affecting the airflow of other air outlets 2 due to excessive airflow, improves the uniformity of airflow in the space covered by the air outlet pipe, and improves the airflow efficiency.

[0027] In this embodiment, the pipe body 1 has a smooth inner wall, and the radial cross-section of the pipe body 1 is circular. The airflow flows and converges along the inner wall of the pipe body 1 and is discharged through the corresponding air outlet 2. The bottom surface of the pipe body 1 is provided with a horizontal surface 4 arranged along its axial direction, and the air outlet 2 is opened on the horizontal surface 4. The pipe body 1 is a circular pipe with a horizontal surface 4 at the bottom, so that the side wall and top wall of the pipe body 1 form a continuous arc surface, and the bottom surface forms a horizontal surface 4. This facilitates the flow of air along the arc surface and the discharge through the air outlet 2 along the way after converging at the horizontal surface 4. The horizontal surface 4 plays a role in stabilizing and guiding the flow. The edge of the arc surface is tangentially connected to the edge of the horizontal surface 4, which effectively reduces the influence of the connection between the two on the airflow velocity.

[0028] In this embodiment, the pipe body 1 is uniformly narrowed along its axial direction, and the horizontal planes 4 of each radial section of the pipe body 1 are all at the same height, making the axis of the pipe body 1 inclined from front to back, which is conducive to the airflow converging towards the bottom of the pipe body 1. The end of the pipe body 1 is provided with an inclined rear end face, which is inclined forward at the top edge, which is conducive to guiding the airflow flowing to the rear end of the pipe body 1 to the air outlet 2 at the bottom. By timely exhausting the airflow in the pipe body 1, it facilitates the reception of subsequent airflow and prevents backflow of airflow due to excessive air pressure in the pipe body 1.

[0029] In this embodiment, a vertically penetrating groove is formed at the bottom of the pipe body 1, arranged along its axial direction. Several equidistant guide plates 5 are provided within the groove to divide the groove cavity into air outlets 2, ensuring a balanced airflow at each outlet 2. The bottom edge of the groove extends downward to form an annular rim 6. The cross-sectional profile of the annular rim 6 is elongated and arranged along the axial direction of the pipe body 1, facilitating the airflow flowing along the axial direction of the pipe body 1 to be discharged through the sequentially arranged air outlets 2, achieving a gradual and uniform discharge of airflow. The guide rods are equidistantly arranged along the axial direction of the pipe body 1. The guide plates 5 not only intercept the airflow within the pipe body 1 but also guide the airflow to the target area of ​​the indoor space, changing the airflow from axial to vertical.

[0030] In this embodiment, the guide plates 5 are all equidistantly arranged perpendicular to the axial direction of the pipe body 1, and the top of each guide plate 5 is arc-shaped and faces the air inlet 3. The guide plates 5 are arranged parallel to each other and perpendicular to the airflow direction, ensuring that the end face of the guide plate 5 faces the airflow direction, effectively improving the efficiency of airflow interception, and thus improving the air delivery efficiency of the main unit by improving the airflow exhaust efficiency. Specifically, the bottom of the arc-shaped plate is vertical and the top is curved, which effectively intercepts the airflow inside the pipe and also effectively ensures that the airflow is vertically diffused into the indoor space.

[0031] In this embodiment, the top edge of the front guide plate 5 is lower than the top edge of the rear guide plate 5, so that the top edges of the guide plates 5 rise sequentially from front to back. The front guide plate 5 and the rear guide plate 5 refer to a relative relationship and do not specifically refer to any particular component. By setting guide plates 5 with progressively increasing heights, the flow interception performance of each guide plate 5 is adjusted, thereby ensuring the same airflow rate even with different airflow rates. This ensures that each air outlet 2 has a balanced airflow, effectively preventing individual air outlets 2 from affecting user comfort due to excessive airflow. By improving the airflow balance of each air outlet 2, the airflow rate of the air outlet 2 is effectively reduced, thereby reducing the impact of airflow on the user, achieving imperceptible ventilation, and improving the user experience.

[0032] In this embodiment, the fan includes a main unit with a built-in fan and an air outlet pipe installed on the side of the main unit. An exhaust port is provided on the outer wall of the main unit, and the air outlet pipe is fixedly connected to the side of the main unit. The air inlet 3 of the air outlet pipe is sealed and connected to the exhaust port.

[0033] During installation, first, install the keel assembly below the ceiling; then, overlap and install the main unit above the keel; next, seal the air outlet duct and insert it into the exhaust port of the main unit so that the air outlet 2 faces downward; finally, suspend the decorative panel below the keel, forming an assembly gap between adjacent decorative panels to expose the air outlet 2, so that the bottom edge of the air outlet 2 is flush with the bottom surface of the decorative panel.

[0034] In practice, the decorative panel has two assembly methods. Method 1: The triangular keels in the keel assembly are arranged equidistantly and parallelly, and the decorative panel has two sizes to meet the requirements of tight splicing and clamping the air outlet 2 respectively; Method 2: The distance between the triangular keels in the keel assembly has different spacing, and the decorative panel has a uniform size. The position of the decorative panel is positioned by setting the position of the triangular keels, thereby forming the required assembly gap between adjacent decorative panels.

[0035] In actual operation, the air inlet 3 is square, and the axial projection of the pipe body 1 falls into the air inlet 3. Due to the limited space above the decorative panel, setting the air inlet 3 to be square not only effectively reduces the height of the air inlet 3 but also effectively increases the air volume. In addition, the air inlet can also be set as circular, elliptical, triangular, etc., all of which should be considered as specific embodiments of the present invention.

[0036] In actual operation, the bottom surface of the pipe body 1 extends downward to form a support leg 8 with a flat supporting surface 7, and the supporting bottom surface is higher than the bottom edge of the annular rim 6. Two parallel triangular keels (such as...) are provided at the installation position of the air outlet pipe. Figure 3 As shown, the triangular keel serves both to suspend and position adjacent decorative panels and to support the legs 8. When the legs 8 are stably attached to the triangular keel, the bottom edge of the annular rim 6 extends downward through the assembly gap and is flush with the bottom surface of the decorative panel. After installation, the gap between the edge of the decorative panel and the outer wall of the annular rim 6 is sealed by inserting a connecting plate. The connecting plate is elongated and has through holes whose contours match the annular rim 6, allowing the connecting plate to fit onto the annular rim 6.

[0037] In actual operation, there are at least four support legs 8, which are distributed on both the front and rear sides of the annular rim 6. Multiple support legs 8 ensure that the air outlet duct is stably attached to the triangular keel. The support legs 8 are fixed to the triangular keel by clips or fasteners to prevent the air outlet duct from shifting.

[0038] In actual operation, the side wall of the support leg 8 is fixedly connected to the outer wall of the annular rim 6, and the support leg 8 and the tube body 1 are integrally formed, which not only ensures the connection strength, but also facilitates processing.

[0039] In this embodiment, the air outlet duct is a plastic part, preferably formed by split injection molding. The air outlet duct is disassembled into an upper and lower part. During processing, the upper and lower parts are first formed separately by injection molding, and then the upper and lower parts are fixed together to form the air outlet duct. Since the lower part is formed by integral injection molding, it has a flat bottom edge of the annular rim 6 and the bottom edge of the guide plate 5, improving the aesthetics of the air outlet 2. The upper and lower parts can be fixed together by fasteners or by adhesive bonding; both should be considered specific embodiments of the present invention. When using fasteners, the joint between the upper and lower parts is provided with a matching, pluggable windproof strip and windproof groove, effectively improving the sealing performance of the joint.

[0040] In this embodiment, the guide plates can also be arranged with varying density to obtain differentiated airflow changes, which should also be considered a specific embodiment of the present invention. Specifically, the guide plates are arranged with a sparser front and a denser rear. By reducing the number of guide plates in the front section of the pipe, the exhaust airflow is reduced. This effectively ensures uniform exhaust airflow in both the front and rear sections of the pipe, and also prevents the exhaust airflow from being re-inhaled by reducing the exhaust airflow in the front section.

Claims

1. An air outlet duct for integrated ceiling systems, comprising a duct body (1), wherein the duct body (1) is provided with an air outlet (2) and an air inlet (3), characterized in that, The air inlet (3) is located on the front end face of the pipe body (1), and the air outlet (2) is located on the bottom surface of the pipe body (1) along the axis of the pipe body (1). The airflow flowing along the pipe body is discharged evenly through the air outlets (2) along the way. The pipe body (1) is thicker at the front and thinner at the back, and has a smooth inner wall to reduce wind resistance. The radial cross section of the pipe body (1) is circular, and the diameter is uniformly reduced along the axial direction. The airflow flows and converges along the inner wall of the pipe body (1) and is discharged through the corresponding air outlet (2). A vertically penetrating groove is opened at the bottom of the pipe body (1) and arranged along its axial direction. The groove is provided with Several guide plates (5) are used to divide the groove cavity of the groove to form the air outlet (2) so that the airflow of each air outlet (2) is balanced; the lower end of the groove extends downward to form an annular rim (6), and the bottom edge of the guide plate (5) is flush with the bottom edge of the rim to form a tubular air outlet (2); the guide plates (5) are all equidistant from the axial direction of the tube body (1), and the top of the guide plate (5) is arc-shaped and faces the air inlet (3); the top edge of the front guide plate (5) is lower than the top edge of the rear guide plate (5) so that the top edge of the guide plate (5) rises sequentially from front to back.

2. The air outlet duct for integrated ceiling as described in claim 1, characterized in that, The bottom surface of the tube body (1) is provided with a horizontal surface (4) arranged along its axial direction, and the air outlet (2) is opened on the horizontal surface (4); or, the air inlet (3) is square, and the axial projection of the tube body (1) falls into the air inlet (3) shown.

3. The air outlet duct for integrated ceiling as described in claim 1, characterized in that, The bottom surface of the tube (1) extends downward to form a support foot (8) with a flat support surface (7), and the support bottom surface is higher than the bottom edge of the annular rim (6).

4. The air outlet duct for integrated ceiling as described in claim 3, characterized in that, The support legs (8) are at least four in number and are located on the front and rear sides of the annular rim (6); or, the sidewalls of the support legs (8) are fixed to the outer sidewalls of the annular rim (6).

5. A fan using an exhaust duct, wherein the exhaust duct is an integrated ceiling exhaust duct as described in any one of claims 1-4, comprising a main unit with a built-in fan, and an exhaust port is provided on the outer side wall of the main unit, characterized in that, An air outlet pipe is fixedly connected to the side of the main unit, and the air inlet (3) of the air outlet pipe is sealed and connected to the exhaust port.

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