Window assembly and air handling unit

Abstract

The window assembly comprises a metal panel and a metal net, the air handling unit is provided with an installation opening, the metal panel is used for being connected with the air handling unit and covering the installation opening, an observation opening is formed in the metal panel, and the metal net is fixedly connected to the metal panel. The metal net covers the observation opening, the interior of the air handling unit can be directly observed through the net holes due to the fact that the multiple net holes are distributed in the metal net, a box body of the air handling unit does not need to be disassembled, maintenance is more convenient, the air handling unit can bear certain impact and cannot be damaged, and external objects are prevented from entering the air handling unit through the observation opening. The metal panel and the metal net can meet the fireproof requirement of the air handling unit, and safety can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a window assembly and an air handling unit. Background Art

[0002] In order to meet the fire protection requirements, the air handling unit usually adopts a metal shell. Since the air handling unit is equipped with a display device, the working status or fault information can be displayed in real time. In the related art, in order to facilitate the observation of the display device, a translucent or transparent window is added to the shell, which does not need to be disassembled for easy maintenance. However, such windows are usually made of plastic and are difficult to meet the fire protection requirements. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a window assembly that can meet the fire protection requirements of an air handling unit and improve product safety.

[0004] The utility model also provides an air handling unit comprising the window assembly.

[0005] According to the window assembly of the first aspect of the utility model, it is applied to an air handling unit with an installation port, and includes a metal panel and a metal mesh. The metal panel is provided with an observation port, and the metal panel is used to be connected to the air handling unit and cover the installation port; the metal mesh is fixedly connected to the metal panel and covers the observation port.

[0006] The window assembly according to the embodiment of the utility model has at least the following beneficial effects:

[0007] The window assembly adopts a combined structure of a metal panel and a metal mesh. The metal panel is used to connect with the air handling unit and cover the installation port. An observation port is opened on the metal panel, and the metal mesh is fixedly connected to the metal panel so that the metal mesh covers the observation port. Since the metal mesh is distributed with multiple mesh holes, the interior of the air handling unit can be directly observed through the mesh holes. There is no need to disassemble the air handling unit case, which makes maintenance more convenient. It can also withstand certain impacts without being damaged, and can prevent external objects from entering the air handling unit through the observation port. The metal panel and the metal mesh can meet the fire protection requirements of the air handling unit and help improve safety.

[0008] According to some embodiments of the present invention, the window assembly further includes:

[0009] A pressing plate, fixedly connected to the metal panel, and the metal mesh is fixedly arranged between the pressing plate and the metal panel;

[0010] Along a direction perpendicular to the metal panel, a projection surface of the pressing plate on the metal panel does not completely overlap with the observation port.

[0011] According to some embodiments of the present invention, the pressing plate is annular and is configured to be attached to the periphery of the metal mesh along the circumference of the observation port.

[0012] According to some embodiments of the present invention, the pressing plate is a metal piece, and the pressing plate is fixed to the metal panel by welding or riveting.

[0013] According to some embodiments of the present invention, the metal mesh is fixed to the metal panel by welding or riveting.

[0014] According to some embodiments of the present invention, the metal mesh is a wire mesh, the mesh number of the wire mesh ranges from 18 mesh to 40 mesh, and the wire diameter of the wire mesh ranges from 0.15 mm to 0.35 mm.

[0015] According to some embodiments of the present utility model, the metal mesh is a wire mesh, two adjacent metal wires in the wire mesh are cross-woven and the weaving angle is 90°, and the cross-sectional shape of the mesh holes of the wire mesh is a polygon.

[0016] According to some embodiments of the present invention, the window assembly further includes:

[0017] The decorative plate is a transparent or translucent plate body, and is arranged on a side of the metal panel away from the metal mesh and covers the observation port.

[0018] According to some embodiments of the present invention, a concave surface is formed on the surface of the metal panel, the observation port is opened in the concave surface, and at least a part of the decorative panel is installed in the concave surface.

[0019] According to the second embodiment of the utility model, the air handling unit comprises a box body and a window assembly according to the first embodiment, the box body is provided with a mounting opening, and the window assembly is mounted on the mounting opening.

[0020] The air handling unit according to the embodiment of the utility model has at least the following beneficial effects:

[0021] Since the air handling unit adopts the above-mentioned window assembly, the interior of the air handling unit can be directly observed through the metal mesh without disassembling the box, which makes maintenance more convenient and can also prevent external objects from entering the interior of the air handling unit through the observation port; and it can meet the fire protection requirements of the air handling unit, and the air handling unit is safer.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 This is an overall schematic diagram of an air handling unit according to an embodiment of the utility model;

[0025] Figure 2 This is a front structural schematic diagram of a window assembly according to an embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of the exploded structure of a window assembly according to an embodiment of the present utility model;

[0027] Figure 4 for Figure 2 Schematic diagram of the cross section in the BB direction;

[0028] Figure 5 for Figure 4 A cross-sectional schematic diagram of the middle window assembly with a decorative panel;

[0029] Figure 6 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0030] Figure Number:

[0031] Air handling unit 1000;

[0032] Chassis 100; box body 110;

[0033] Window assembly 200 ; metal panel 210 ; observation port 211 ; concave surface 212 ; mounting hole 213 ; inner side surface 214 ; outer side surface 215 ; metal mesh 220 ; mesh hole 221 ; metal wire 222 ; pressing plate 230 ; through hole 231 ; decorative plate 240 . DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0035] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., 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 a limitation on the present invention.

[0036] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] Reference Figure 1 As shown, the air handling unit 1000 of the embodiment of the utility model includes a chassis 100, which can be composed of two boxes 110 and can be detachably connected, so as to facilitate transportation and installation. In order to meet the fire protection requirements, the box 110 is made of sheet metal. The box is installed with components such as a fan assembly, a heat exchange assembly, and an electric control assembly, wherein the electric control assembly includes an electric control board, which is used to control the operation of the air handling unit 1000. The electric control board is provided with a display tube, and the working status or fault information of the air handling unit 1000 is displayed in real time through the display tube. For example, when the air handling unit 1000 is working normally, the display tube displays information such as the cooling temperature. When a fault occurs and the unit stops, the display tube displays a fault code, which is convenient for maintenance personnel to inspect and repair the equipment.

[0039] Since the box 110 is a sheet metal part, in order to facilitate observation of the display tube, in the related art, a translucent or transparent window structure is added to the box 110, which can be a light-transmitting part. The display tube can be observed through the light-transmitting part without disassembling the box 110. However, the light-transmitting part is made of plastic, which does not meet the fireproof requirements of the air handling unit 1000, and has low strength and is easily damaged. In addition, some other technologies use a detachable metal plate as a window structure, which meets the fireproof requirements, but the metal plate needs to be disassembled for observation to achieve visualization, which is inconvenient to operate.

[0040] Reference Figure 1 and Figure 2 As shown, the air handling unit 1000 of the embodiment of the utility model is provided with a window assembly 200, and the window assembly 200 includes a metal panel 210 and a metal mesh 220. The surface of the metal panel 210 is provided with an observation port 211, and the observation port 211 penetrates the metal panel 210. The metal mesh 220 is fixedly connected to the metal panel 210. The area of ​​the metal mesh 220 is larger than the cross-sectional area of ​​the observation port 211, so that the metal mesh 220 can cover the observation port 211. The box body 110 is provided with an installation port, and the metal panel 210 is fixedly installed at the installation port. The metal panel 210 can be fixedly connected to the box body 110 by screws, riveting, welding, etc. Figure 1 The middle window assembly 200 covers the installation opening, and the specific structure of the installation opening is not shown. Since the metal mesh 220 is distributed with a plurality of mesh holes 221, the display tube can be directly observed through the mesh holes 221, and the working status or fault information of the air handling unit 1000 can be quickly obtained without disassembling the box body 110, and maintenance is also more convenient.

[0041] In some embodiments, the area of ​​the metal mesh 220 may also be set to be equal to the cross-sectional area of ​​the observation port 211 , so that the metal mesh 220 is directly installed in the observation port 211 to achieve the purpose of covering the observation port 211 .

[0042] The window assembly 200 of the embodiment of the utility model is made of metal material, wherein the metal panel 210 is a sheet metal part, specifically can be made of steel, aluminum and other materials, the metal panel 210 can form an observation port 211 in one piece through a stamping process; the metal mesh 220 can be a wire mesh structure, specifically can be made of steel, aluminum and other materials, by covering the metal mesh 220 at the observation port 211, it can provide a certain visual effect, allowing the user to see the interior of the air handling unit 1000 without disassembly, but the internal structure will not be completely exposed, compared with the transparent window made of plastic material, the structural strength and fire resistance are higher, can meet the fire resistance requirements of the air handling unit 1000, and is conducive to improving product safety.

[0043] Reference Figure 2 As shown, it can be understood that in the embodiment, the shape of the observation port 211 is square, the display tube can be arranged close to the observation port 211, the size of the observation port 211 is set larger than the size of the display tube, and the information such as numbers or codes shown on the display tube can be clearly seen through the metal mesh 220. In the embodiment, the size of the observation port 211 is set according to the specific size of the display tube. Of course, the shape of the observation port 211 is not limited to square, and can also be round, oval, etc.

[0044] It should be noted that the air handling unit 1000 can be remotely controlled through the observation port 211 by using a remote controller, and the working status displayed by the display tube can be observed in real time, which is more convenient to use. In addition, the metal mesh 220 can withstand a certain impact without being damaged, and can prevent external objects from entering the air handling unit 1000 through the observation port 211, thereby playing a protective role; and the window assembly 200 and the box body 110 are both made of metal. When the box body 110 is deformed under the action of a certain impact force or thrust, the window assembly 200 is not easily damaged, so that human fingers can be prevented from entering the box body 110 through the observation port 211, meeting the requirements for preventing mechanical injuries. In general, the design of the window assembly 200 of the embodiment takes into account both practicality and safety, as well as visual effects and overall aesthetics.

[0045] Reference Figure 1 and Figure 2 As shown, in the embodiment, the window assembly 200 is a separate component. After the metal panel 210 and the metal mesh 220 are assembled, the whole is installed on the side wall of the box body 110. Two mounting holes 213 are provided on the metal panel 210. The window assembly 200 is fixedly connected to the box body 110 by screws or rivets passing through the mounting holes 213, thereby realizing the installation of the window assembly 200 and the box body 110.

[0046] In some embodiments, the metal panel 210 can be used as a door panel or panel of the box 110. Taking the door panel as an example, one side of the box 110 is opened to form an installation port. If the size of the metal panel 210 is large enough, the metal panel 210 can be directly used as a door panel. The installation port can be opened or closed through the door panel. By opening the door panel, it is convenient to install components such as fan components and heat exchange components. When the door panel is closed, the entire installation port can be covered. An observation port 211 is opened on the door panel, and the metal mesh 220 is fixed on the inner side of the door panel and covers the observation port 211. In this way, the interior of the device can be observed through the observation port 211 on the door panel without opening the door panel, meeting the fire protection requirements and mechanical damage protection requirements.

[0047] Reference Figure 3 As shown, in some embodiments, the window assembly 200 also includes a pressure plate 230, which is fixedly connected to the metal panel 210, the pressure plate 230 and the metal mesh 220 are located on the same side of the metal panel 210, and the metal mesh 220 is located between the pressure plate 230 and the metal panel 210. The metal mesh 220 is pressed against the surface of the metal panel 210 by the pressure plate 230, thereby achieving fixed installation of the metal mesh 220 and the metal panel 210.

[0048] Considering that the pressure plate 230 cannot completely cover the observation port 211, it is necessary to meet the following conditions: in the direction perpendicular to the metal panel 210, the projection surface of the pressure plate 230 on the metal panel 210 does not completely overlap with the observation port 211, that is, they do not overlap or partially overlap, to ensure that the internal display tube can be clearly observed through the metal mesh 220 and the observation port 211, without affecting observation and remote control.

[0049] Combination Figure 4As shown, specifically, in the embodiment, the pressing plate 230 is arranged along the circumference of the observation port 211 to form an annular structure, and the surface area of ​​the metal mesh 220 is larger than the cross-sectional area of ​​the observation port 211. The pressing plate 230 can press the circumference of the metal mesh 220, so that the edges of the metal mesh 220 are fixed, so that the metal mesh 220 is not easy to separate from the metal panel 210, and the structure is more solid and reliable, and the strength is also higher. It can be understood that since the observation port 211 is square, in order to match the pressing plate 230 with the observation port 211, the through hole 231 formed on the pressing plate 230 is square, and the size of the through hole 231 is set to be greater than or equal to the size of the observation port 211, so that the projection surface of the pressing plate 230 on the metal panel 210 does not overlap with the observation port 211, so that the pressing plate 230 can both press the metal mesh 220 and not block the observation port 211.

[0050] Of course, this is only an example, and the shapes of the through hole 231 and the observation port 211 are not limited to square, and can also be circular, elliptical or other shapes. In some embodiments, the size of the through hole 231 can also be set to be slightly smaller than the size of the observation port 211, so that the projection surface of the pressure plate 230 on the metal panel 210 only partially overlaps with the observation port 211, and the pressure plate 230 will not completely block the observation port 211, and will not affect the observation and remote control of the observation port 211. The specific size of the through hole 231 is set according to the actual size of the observation port 211.

[0051] Furthermore, in the case where the projection surface of the pressing plate 230 on the metal panel 210 does not overlap or partially overlaps with the observation port 211, the pressing plate 230 is not limited to a closed loop structure, and the pressing plate 230 may also have two or more pressing plate units, and the pressing plate units may be a straight or curved plate structure, and two or more pressing plate units are used to press the edge of the metal mesh 220. For example, two pressing plate units press the two opposite sides of the metal mesh 220; for another example, the pressing plate unit may be L-shaped, and the L-shaped pressing plate unit may be set at the two opposite corners of the metal mesh 220, so as to press the corners of the metal mesh 220, and meet the requirements of fixing the metal mesh 220.

[0052] Reference Figure 4 As shown, it should be noted that the surface of the metal panel 210 facing the interior of the air handling unit 1000 is the inner side surface 214, and the surface facing away from the inner side surface 214 is the outer side surface 215. The pressure plate 230 and the metal mesh 220 are installed on the inner side surface 214 of the metal panel 210, so that the pressure plate 230 and the metal mesh 220 will not be exposed on the outside of the box body 110, and will not affect the appearance of the entire machine.

[0053] In order to meet the fire protection requirements, the pressing plate 230 of the embodiment is a metal part, which can be a steel plate, an aluminum plate, etc. The metal part can be integrally formed with a through hole 231 by a stamping process, and the pressing plate 230 is connected to the metal panel 210 by welding, such as the pressing plate 230 is welded to the metal panel 210 around the periphery, so that the periphery of the metal mesh 220 can be pressed tightly, and the structure is firm and has high strength. This is only an example, and the pressing plate 230 can also be connected to the metal panel 210 by riveting, which is also high in strength and easy to assemble.

[0054] In some embodiments, since the metal mesh 220 is made of metal, the metal mesh 220 and the metal panel 210 can be directly connected by welding or riveting, without adding the structure of the pressure plate 230, which can reduce the number of parts and the connection structure is firm and reliable. It should be noted that the metal mesh 220 can be a metal wire mesh or a metal plate with a plurality of meshes 221.

[0055] Reference Figure 3 As shown, in some embodiments, the window assembly 200 also includes a decorative plate 240, which is a transparent plate body. The decorative plate 240 is installed on the outer side 215 of the metal panel 210, and the decorative plate 240 covers the observation port 211. The size of the decorative plate 240 can be set to be greater than or equal to the size of the observation port 211, so that the decorative plate 240 can block the metal mesh 220, which can improve the aesthetics of the window assembly 200. The interior of the air handling unit 1000 can be observed through the decorative plate 240 and the metal mesh 220, and the transparent plate body does not affect the transmission of the remote control signal, so it can ensure that the window assembly 200 meets the requirements of visibility and remote control, and the decorative plate 240 can improve the better visual effect and play a role in waterproofing and dustproofing. In some embodiments, the decorative plate 240 can also be a translucent plate body, which can meet the requirements of observing the interior of the air handling unit 1000 without affecting the transmission of the remote control signal.

[0056] In the embodiment, the decorative panel 240 may be made of plastic, glass or other transparent or translucent materials. The specific shape and size of the decorative panel 240 are set according to the actual shape and size of the observation port 211 so that the decorative panel 240 can completely cover the observation port 211 .

[0057] Reference Figure 3 and Figure 5 As shown, after the window assembly 200 is assembled to the air handling unit 1000, the decorative plate 240 is located on the outer side 215 of the metal panel 210, and the decorative plate 240 has a certain thickness. In order to further improve the aesthetics, a concave surface 212 is provided on the outer side 215 of the metal panel 210, and the decorative plate 240 is installed on the concave surface 212. Figure 52 shows a cross-sectional schematic diagram of the decorative plate 240 installed in the concave surface 212. The concave surface 212 is formed by the outer side surface 215 being recessed toward the inner side surface 214. Specifically, the metal panel 210 can be integrally formed with the observation port 211 and the concave surface 212 through a stamping process. The observation port 211 is located in the concave surface 212. The height of the concave surface 212 is greater than or equal to the thickness of the decorative plate 240. In this way, the decorative plate 240 will not protrude from the outer side surface 215 of the metal panel 210 after being assembled, and will not affect the overall appearance, and the decorative effect is better.

[0058] Figure 3 and Figure 4 The metal mesh 220 shown in is a metal wire mesh, and the mesh number of the metal wire mesh is the specification unit of the wire mesh, specifically refers to the number of holes in a length of 1 inch (25.4 mm). It can be understood that the mesh number can indicate the density between the wires of the wire mesh. The higher the mesh number, the denser the wire mesh, and the smaller the mesh 221. On the contrary, the lower the mesh number, the sparser the wire mesh, and the larger the mesh 221. Since the mesh number of the metal wire mesh is related to the wire diameter, the mesh number and the wire diameter jointly determine the size and opening rate of the mesh 221, wherein the wire diameter is the diameter of the metal wire 222. Considering that the user needs to observe the interior of the display tube and the device through the metal wire mesh, the embodiment needs to select an appropriate mesh number and wire diameter in the relationship between the mesh number and the wire diameter of the metal wire mesh to meet the observation requirements.

[0059] Reference Figure 6 As shown, specifically, the width of the strokes of the display tube in the embodiment is approximately 0.75mm. In order to clearly observe the numbers shown on the display tube, the mesh number of the metal mesh used in the embodiment ranges from 18 mesh to 40 mesh, and the wire diameter r of the metal mesh ranges from 0.15mm to 0.35mm. For example, the mesh number can be 18 mesh, 30 mesh, 40 mesh, etc., and the wire diameter r can be 0.15mm, 0.20mm, 0.35mm, etc. Under the conditions of meeting the above-mentioned mesh number and wire diameter, a single metal wire 222 will not block the strokes of the display tube, and the number of mesh holes 221 is reasonably distributed, so that the display tube can be observed more clearly.

[0060] Reference Figure 6As shown, it can be understood that the metal wire mesh is composed of a plurality of metal wires 222 woven together, two adjacent metal wires 222 are cross-connected and woven at the bend, and the weaving angle α of the two adjacent metal wires 222 is 90°, that is, the two metal wires 222 are bent at the intersection to form a perpendicular relationship with each other, so that the mesh 221 woven by the metal wires 222 is a square hole, that is, the cross-sectional shape of the mesh 221 is square, specifically, it can be a square or a rectangle. Since the numbers shown on the display tube are composed of straight strokes, the square hole has a weaving angle α of 90° relative to the mesh 221 of other shapes, so that the metal wire 222 can be observed through multiple square holes at the same time to observe the display tube, so that the numbers can be more clearly identified and the observation effect is better.

[0061] The air handling unit 1000 of the utility model adopts the window assembly 200 of the above-mentioned embodiment. The interior of the air handling unit 1000 can be directly observed through the metal mesh 220 without disassembling the box body 110, which makes maintenance more convenient and can also prevent external objects from entering the interior of the air handling unit 1000 through the observation port 211; and it can meet the fire protection requirements of the box body 110, and has higher safety.

[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A window assembly, applied to an air handling unit having a mounting opening, characterized in that: include: A metal panel having an observation port, the metal panel being used to be connected to the air handling unit and cover the installation port; A metal mesh, fixedly connected to the metal panel and covering the observation port; A pressing plate, fixedly connected to the metal panel, and the metal mesh is fixedly arranged between the pressing plate and the metal panel; Along a direction perpendicular to the metal panel, a projection surface of the pressing plate on the metal panel does not completely overlap with the observation port.

2. The window assembly according to claim 1, characterized in that: The pressing plate is annular and is configured to be attached to the periphery of the metal mesh along the circumference of the observation port.

3. The window assembly according to claim 1 or 2, characterized in that: The pressing plate is a metal piece, and the pressing plate is fixed to the metal panel by welding or riveting.

4. The window assembly according to claim 1, characterized in that: The metal mesh is fixed to the metal panel by welding or riveting.

5. The window assembly according to claim 1, characterized in that: The metal mesh is a wire mesh, the mesh number of the wire mesh ranges from 18 meshes to 40 meshes, and the wire diameter of the wire mesh ranges from 0.15 mm to 0.35 mm.

6. The window assembly according to claim 1, characterized in that: The metal mesh is a wire mesh, in which two adjacent metal wires are cross-woven and the weaving angle is 90°, and the cross-sectional shape of the mesh holes of the wire mesh is a polygon.

7. The window assembly according to claim 1, characterized in that: The metal mesh is located on a side of the metal panel facing the interior of the air handling unit, and the window assembly further includes: The decorative plate is a transparent or translucent plate body, and is arranged on a side of the metal panel away from the metal mesh and covers the observation port.

8. The window assembly according to claim 7, characterized in that: A concave surface is formed on the surface of the metal panel, the observation port is opened in the concave surface, and at least a part of the decorative plate is installed in the concave surface.

9. An air handling unit, characterized in that: It comprises a box body and the window assembly according to any one of claims 1 to 8, wherein the box body is provided with a mounting opening, and the window assembly is mounted on the mounting opening.

Images