Return air enclosure system for clean room
By installing inclined baffles and snap-fit aluminum fittings on the underside of the cleanroom wall panels, the problem of low return air efficiency in cleanrooms is solved, achieving efficient air circulation and stable installation, making it suitable for cleanroom return air enclosure systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional cleanroom return air structures have return air vents at the bottom of the wall panels but lack airflow guidance structures, resulting in low return air volume and affecting the return air efficiency of the cleanroom.
An inclined return air deflector is installed on the lower side of the wall panel, and the deflector is fastened with a snap-fit aluminum fitting to increase the return air volume and improve the installation stability. Combined with a removable return air grille, it filters particles and impurities in the air.
It improves the return air efficiency of the cleanroom, ensures the normal operation of the air purification equipment, enhances the installation stability of the baffle plate, and achieves effective air filtration.
Smart Images

Figure CN224050508U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of clean room return air system, in particular to a return air enclosure system for clean room. BACKGROUND
[0002] The clean room enclosure system is widely used in the fields of biological medicine, laboratory, electronic semiconductor, aerospace, food, cosmetics, hospital, precision instrument manufacturing, etc. The wallboard of the clean room needs to be provided with a return air structure to facilitate the return air in the clean room. The traditional return air structure is to open a return air opening at the bottom of the wallboard. There is no flow guide structure at the return air opening, which leads to low return air volume in the clean room, thereby affecting the return air efficiency in the clean room. CONTENT OF THE UTILITY MODEL
[0003] In order to overcome the above-mentioned defects, the purpose of the present application is to provide a return air enclosure system for clean room, thereby effectively solving the above-mentioned technical problems.
[0004] In order to achieve the above purpose, the present application adopts the following technical scheme:
[0005] The present application provides a return air enclosure system for clean room, which comprises
[0006] a base fixedly arranged on the ground,
[0007] a wallboard fixedly arranged on the base, the wallboard comprising a first plate body and a second plate body, a hollow return air channel being arranged between the first plate body and the second plate body, the first plate body being located inside the clean room, and a return air opening communicating with the return air channel being arranged on the lower side surface of the first plate body;
[0008] a clamping aluminum piece comprising a pressing plate, a clamping groove being arranged at the bottom of the pressing plate, a clamping block being arranged on the top of the base, and the clamping block and the clamping groove being inserted and matched to fix the pressing plate on the base;
[0009] a return air flow guide plate, the return air flow guide plate being an inclined flow guide plate from bottom to top, a bent buckle plate being arranged at the bottom of the return air flow guide plate, and the buckling part of the bent buckle plate being inserted into the gap between the pressing plate and the base to fix the return air flow guide plate at the return air opening part.
[0010] Further, the clamping aluminum piece comprises a side baffle, one side of the side baffle being inserted into the gap between the pressing plate and the base to fix the side baffle at the return air opening part, the other side of the side baffle being in contact with the inner side surface of the lower end bent buckle plate of the return air flow guide plate, and the lower end of the return air flow guide plate being flush with the surface of the first plate body.
[0011] Further, the top of the return air guide plate is provided with a flat plate which is attached to the inner side surface of the second plate body.
[0012] Further, a return air grille is further included, the surface of the return air grille is uniformly provided with a filter screen, and the return air grille is detachably arranged at the return air opening position.
[0013] Further, the lower end of the return air guide plate is uniformly provided with a plurality of notches, and the support column at the bottom of the wall plate is clamped at the notch position.
[0014] Beneficial effects
[0015] The return air enclosure system for a clean room provided in the application is arranged with an inclined guide plate at the return air opening arranged at the lower side of the wall plate, the return air amount in the clean room is increased, the return air efficiency of the clean room is improved, the clamping aluminum part is matched with the buckling plate of the guide plate to facilitate the installation of the guide plate, and the stability of the installation of the guide plate is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] The accompanying drawings are used to provide an understanding of the technical solutions of the present disclosure, and constitute a part of the specification, and are used to explain the technical solutions of the present disclosure together with the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions of the present disclosure. The shapes and sizes of the components in the drawings do not reflect the true proportions, and the purpose is only to schematically illustrate the content of the application.
[0017] Figure 1 The schematic diagram of the overall structure of the return air enclosure system provided in an embodiment of the application is shown.
[0018] Figure 2 The schematic diagram of the cross-sectional structure of the return air enclosure system provided in an embodiment of the application is shown.
[0019] Figure 3 The schematic diagram of the structure of the return air guide plate provided in an embodiment of the application is shown.
[0020] Figure 4 The schematic diagram of the cross-sectional structure of the return air enclosure system provided in another embodiment of the application is shown.
[0021] In the above drawings, 1 is a base, 2 is a wall plate, 21 is a first plate body, 22 is a second plate body, 3 is a return air channel, 4 is a pressing plate, 5 is a clamping groove, 6 is a clamping block, 7 is a return air guide plate, 71 is a buckling plate, 72 is a flat plate, 73 is a notch, 8 is a side baffle, and 9 is a return air grille. DETAILED DESCRIPTION
[0022] The above solutions are further described below in connection with specific examples. It should be understood that the examples are used to illustrate rather than to limit the scope of this application. The implementation conditions used in the examples can be further adjusted as the specific manufacturer's conditions, and the implementation conditions not mentioned are usually the conditions in the conventional experiments.
[0023] Unless otherwise defined, technical terms or scientific terms used in the embodiments of the disclosure shall have the ordinary meaning understood by a person of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms used in the embodiments of the disclosure do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "include", "contain", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. In this document, "electrically connected" includes the case where the constituent elements are connected together through an element having a certain electrical effect. The element having a certain electrical effect is not particularly limited as long as it can perform the transmission of electrical signals between the constituent elements to be connected. The element having a certain electrical effect may, for example, be an electrode or a wiring, or a switching element such as a transistor, or other functional elements such as a resistor, an inductor, or a capacitor, etc. "Up", "down", "left", "right", and the like are used only to indicate relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships can also change accordingly.
[0024] In this application, the terms "up", "down", "inner", "middle", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.
[0025] Embodiments
[0026] An air return enclosure system for a clean room is provided in an embodiment of the present application, which comprises a frame, a plurality of air return channels arranged in the frame, and a plurality of air return inlets arranged in the frame and connected to the air return channels. Figures 1-3As shown, the enclosure system comprises a base 1 fixedly arranged on the ground, and a wall panel 2 fixedly arranged on the base 1, the wall panel 2 comprising a first panel body 21 and a second panel body 22, a hollow return air passage 3 between the first panel body 21 and the second panel body 22, the first panel body 21 being located inside the clean room, and a return air opening communicated with the return air passage 3 being arranged on the lower side surface of the first panel body 21; the enclosure system further comprises a clamping aluminum piece, the clamping aluminum piece comprising a pressing plate 4, a clamping groove 5 being arranged on the bottom of the pressing plate 4, and a clamping block 6 being arranged on the top of the base 1, the clamping block 6 and the clamping groove 5 being inserted and matched to fix the pressing plate 4 on the base 1; the enclosure system further comprises a return air flow guide plate 7, the return air flow guide plate 7 being an inclined flow guide plate from bottom to top, the airflow inside the clean room smoothly entering the return air opening through the return air flow guide plate 7 to play a role of guiding the airflow, the bottom of the return air flow guide plate 7 being provided with a bent buckle plate 71, the buckle part of the bent buckle plate 71 being inserted into the gap between the pressing plate 4 and the base 1 to fix the return air flow guide plate 7 at the return air opening part, the top of the return air flow guide plate 7 being provided with a flat plate 72, the flat plate 72 being attached to the inner side surface of the second panel body 22, a plurality of notches 73 being evenly arranged on the lower end of the return air flow guide plate 7, and the support column at the bottom of the wall panel 2 being clamped at the notch 73 part; the clamping aluminum piece further comprises a side baffle 8, one side of the side baffle 8 being inserted into the gap between the pressing plate 4 and the base 1 to fix the side baffle 8 at the return air opening part, the other side of the side baffle 8 being attached to the inner side surface of the bent buckle plate 71 at the lower end of the return air flow guide plate 7, the lower end of the return air flow guide plate 7 being flush with the surface of the first panel body 21, the lower side of the side baffle 8 being matched with the lower end frame of the wall panel 2, the upper end surface of the baffle being flush with the height of the return air flow guide plate 7, the fixation of the return air flow guide plate 7 being strengthened to some extent, and there being no health dead angle after the side baffle 8 is installed, which is more in line with the requirements of the clean room.
[0027] The return air enclosure system for the clean room provided in the present application is provided with an inclined flow guide plate at the return air opening arranged on the lower side of the wall panel 2 to increase the return air volume in the clean room and improve the return air efficiency of the clean room, the clamping aluminum piece is matched with the buckle plate of the flow guide plate to facilitate the installation of the flow guide plate and improve the stability of the installation of the flow guide plate, the enclosure system is usually installed at the return air opening position of the purification equipment to guide the circulation of the purified air and filter the particles and impurities in the air, the super-large return air channel design structure can more effectively guide the air flow to help the normal operation of the purification equipment and improve the air purification efficiency.
[0028] In some embodiments, as Figure 4As shown, the clean room further comprises a return air grille 9, which is uniformly provided with a filter screen on the surface and is detachably arranged at the return air outlet part. The lower side of the return air enclosure system can be provided with an integrated return air baffle 7, or a magnetic return air grille 9 or an embedded grille. The airflow in the clean room smoothly enters the return air outlet through the return air grille 9. The return air grille 9 is provided with a filter screen, which can preliminarily filter the large particles of dust in the clean room. Meanwhile, the grille has a magnetic attraction function, and is convenient to install and remove.
[0029] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent conversion or modification made in the spirit and essence of the present application should be covered within the protection scope of the present application.
Claims
1. A return air enclosure system for cleanrooms, characterized in that: Comprising a base fixedly arranged on the ground; a wallboard fixedly arranged on the base, the wallboard comprising a first plate body and a second plate body, a hollow return air passage between the first plate body and the second plate body, the first plate body being located inside the clean room, and a return air opening on the lower surface of the first plate body and communicating with the return air passage; a clamping aluminum piece comprising a pressing plate, a clamping groove being formed on the bottom of the pressing plate, and a clamping block being arranged on the top of the base and being inserted into the clamping groove to fix the pressing plate on the base; a return air flow guide plate, the return air flow guide plate being inclined from bottom to top, and a bent buckle plate being arranged on the bottom of the return air flow guide plate and being inserted into the gap between the pressing plate and the base to fix the return air flow guide plate at the return air opening.
2. The return air enclosure system for clean rooms according to claim 1, wherein: the clamping aluminum piece comprises a side baffle, one side of the side baffle being inserted into the gap between the pressing plate and the base to fix the side baffle at the return air opening, the other side of the side baffle being in contact with the inner surface of the bent buckle plate on the lower end of the return air flow guide plate, and the lower end of the return air flow guide plate being flush with the surface of the first plate body.
3. The return air enclosure system for clean rooms according to claim 1, wherein: a flat plate is arranged on the top of the return air flow guide plate and is in contact with the inner surface of the second plate body.
4. The return air enclosure system for clean rooms according to claim 1, further comprising a return air grille, the surface of the return air grille being uniformly provided with filter screens, and the return air grille being detachably arranged at the return air opening.
5. The return air enclosure system for clean rooms according to claim 1, wherein: a plurality of notches are uniformly formed on the lower end of the return air flow guide plate, and the support column on the bottom of the wallboard is clamped in the notches.