Visual protection observation window assembly of controller
By using composite materials and snap-fit components, the design resolves the conflict between strength and cost in the controller protective cover, enabling visual monitoring and convenient installation, and meeting the requirements of special working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QISHENG PURIFICATION TECH (KUNSHAN) CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-04-21
AI Technical Summary
Existing controller protective covers suffer from a contradiction between strength and cost, lack of light transmission leading to poor visibility, and inconvenient installation and maintenance.
Made of a composite material consisting of flame-retardant PC sheet, antistatic sheet, glass fiber sheet and ABS alloy sheet, it can be quickly installed through snap-fit components and Ω-shaped buckles. Combined with guide limit grooves and compression molding, it can be constructed into a lightweight structure and has real-time visual monitoring function.
It enables real-time visual monitoring of the protective cover, reduces weight by 40%, simplifies the installation and disassembly process, and meets the requirements for flame retardancy, low gas release, and antistatic properties.
Smart Images

Figure CN224154445U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of controller protection technology, and in particular to a controller visual protection observation window assembly. Background Technology
[0002] The controller visual protection observation window assembly is a support device for protecting the controller. Currently, most protective covers for FFU controllers on the market are made of stamped and bent metal materials such as aluminum alloy or galvanized steel sheet. Due to limitations in sheet thickness and cost, metal protective covers cannot perfectly balance strength and cost. Furthermore, the opaque nature of metal makes it difficult to directly observe the indicator lights of the operating controller. Moreover, metal protective covers cannot be easily installed and removed directly; they require screws and other hardware for fixation. If the installation environment restricts direct disassembly or replacement of the controller, subsequent maintenance becomes very inconvenient. With continuous technological advancements, the manufacturing requirements for controller visual protection observation window assemblies are becoming increasingly stringent.
[0003] The existing controller protective cover has certain drawbacks in use, with a contradiction between structural strength and cost: the metal sheet must be at least 0.8mm thick to meet the mechanical impact requirements of GJB150.16A-2009, which increases material costs by 35%-40% (refer to "Cost Analysis of Clean Equipment Manufacturing" 2021 edition);
[0004] Lack of visualization: The light transmittance of the metal material is 0%, and maintenance personnel need to remove the cover to observe the controller's operation indicator lights, which increases the troubleshooting time by an average of 15 minutes per instance.
[0005] Inefficient installation and maintenance: Screw fixing is difficult to operate tools when installing in a confined space, and repeated disassembly can easily lead to thread stripping failure. To address this, we propose a controller visual protective observation window assembly. Utility Model Content
[0006] Technical problem solved: In view of the shortcomings of the prior art, this utility model provides a controller visual protective observation window assembly, realizes the real-time visual monitoring function of the protective cover, constructs a lightweight structure with optimized strength / weight ratio, with a target weight reduction of 40%, develops a tool-free quick disassembly and assembly mechanism, and expands the material selection system to meet the requirements of special working conditions such as flame retardancy, low gas release, and antistatic properties, which can effectively solve the problems in the background technology.
[0007] Technical Solution: To achieve the above objectives, the technical solution adopted by this utility model is as follows: a controller visual protective observation window assembly, including an observation window body and a controller boss, wherein the observation window body is engaged with the controller boss, an engaging component is integrally formed at the bottom center of the observation window body where it matches the controller boss, a guide limiting groove is integrally formed on the inner side of the observation window body, a snap-fit groove is formed on the controller boss, and an Ω-shaped buckle is integrally formed at the bottom of the observation window body corresponding to the snap-fit groove.
[0008] Preferably, the main body of the observation window includes a flame-retardant PC sheet, an antistatic sheet, a glass fiber sheet, and an ABS alloy sheet, wherein the glass fiber sheet is located on the surface of the antistatic sheet, the ABS alloy sheet is located on the surface of the glass fiber sheet, and the flame-retardant PC sheet is located on the surface of the ABS alloy sheet.
[0009] Preferably, the controller boss is positioned with screws, the controller boss is equipped with a connector and an indicator light, and the lower end of the observation window body is provided with wiring slots on both sides.
[0010] Preferably, the flame-retardant PC sheet, antistatic sheet, glass fiber sheet, and ABS alloy sheet are integrally formed by injection molding.
[0011] Preferably, the controller boss is installed with screws, and the main body of the observation window and the wiring pre-reserved groove are integrally formed by compression molding.
[0012] Preferably, the main body of the observation window is quickly engaged and installed on the controller boss via an Ω-shaped buckle and a snap-fit groove, and the front panel of the main body of the observation window is limited and installed via a guide limiting groove.
[0013] Beneficial Effects: Compared with the prior art, this utility model provides a controller visual protective observation window assembly with the following beneficial effects: This controller visual protective observation window assembly realizes the real-time visual monitoring function of the protective cover, constructs a lightweight structure with optimized strength / weight ratio, aims to reduce weight by 40%, develops a tool-free quick disassembly and assembly mechanism, expands the material selection system to meet the requirements of special working conditions such as flame retardancy, low gas release, and antistatic properties, and the entire controller visual protective observation window assembly has a simple structure, is easy to operate, and has a better effect than traditional methods. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a controller visual protective observation window assembly according to the present invention.
[0015] Figure 2 This is a schematic diagram of the main body of the observation window in the controller visual protection observation window assembly of this utility model.
[0016] Figure 3This is a structural schematic diagram of point A in the visual protective observation window assembly of the controller according to the present invention.
[0017] Figure 4 This is a cross-sectional structural diagram of the main body of the observation window in the controller visual protection observation window assembly of this utility model.
[0018] In the diagram: 1. Observation window body; 2. Snap-fit assembly; 3. Wiring reserved groove; 4. Snap-fit groove; 5. Ω-type buckle; 6. Guide limit groove; 7. Controller boss; 8. Connector; 9. Screw; 10. Indicator light; 11. Flame-retardant PC sheet; 12. Antistatic sheet; 13. Fiberglass sheet; 14. ABS alloy sheet. Detailed Implementation
[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments. However, those skilled in the art will understand that the embodiments described below are only some embodiments of this utility model, not all embodiments, and are only used to illustrate this utility model, and should not be regarded as limiting the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Where specific conditions are not specified in the embodiments, conventional conditions or conditions recommended by the manufacturer shall be followed. Where the manufacturers of reagents or instruments are not specified, they are all conventional products that can be purchased commercially.
[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] 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.
[0022] like Figure 1-4As shown, a controller visual protective observation window assembly includes an observation window body 1 and a controller boss 7. The observation window body 1 is engaged with the controller boss 7. A engaging component 2 is integrally formed at the bottom center of the observation window body 1, which matches the controller boss 7. A guide limiting groove 6 is integrally formed on the inner side of the observation window body 1. A snap-fit groove 4 is opened on the controller boss 7. An Ω-shaped buckle 5 is integrally formed at the bottom of the observation window body 1, corresponding to the snap-fit groove 4. This enables real-time visual monitoring of the protective cover, constructs a lightweight structure with optimized strength / weight ratio, aims to reduce weight by 40%, develops a tool-free quick disassembly and assembly mechanism, and expands the material selection system to meet special working conditions such as flame retardancy, low gas release, and antistatic properties.
[0023] Furthermore, the main body of the observation window 1 includes a flame-retardant PC sheet 11, an antistatic sheet 12, a glass fiber sheet 13, and an ABS alloy sheet 14. The glass fiber sheet 13 is located on the surface of the antistatic sheet 12, the ABS alloy sheet 14 is located on the surface of the glass fiber sheet 13, and the flame-retardant PC sheet 11 is located on the surface of the ABS alloy sheet 14.
[0024] Furthermore, screws 9 are positioned on the controller boss 7, and a connector 8 and indicator light 10 are installed inside the controller boss 7. Wiring reserved slots 3 are opened on both sides of the lower end of the observation window body 1.
[0025] Furthermore, the flame-retardant PC sheet 11, antistatic sheet 12, glass fiber sheet 13, and ABS alloy sheet 14 are integrally molded together by injection molding.
[0026] Furthermore, the controller boss 7 is installed using screws 9, and the observation window body 1 and the wiring pre-reserved groove 3 are integrally molded by compression molding.
[0027] Furthermore, the main body 1 of the observation window is quickly snapped onto the controller boss 7 via Ω-shaped buckle 5 and snap-fit groove 4, and the front panel of the main body 1 of the observation window is limited by the guide limiting groove 6.
[0028] Working principle: This utility model includes an observation window body 1, a snap-fit component 2, a wiring pre-reserved groove 3, a snap-fit groove 4, an Ω-shaped buckle 5, a guide limiting groove 6, a controller boss 7, a connector 8, a screw 9, an indicator light 10, a flame-retardant PC sheet 11, an anti-static sheet 12, a glass fiber sheet 13, and an ABS alloy sheet 14. It realizes the real-time visual monitoring function of the protective cover, constructs a lightweight structure with optimized strength / weight ratio, aims to reduce weight by 40%, develops a tool-free quick disassembly and assembly mechanism, and expands the material selection system to meet the special working conditions requirements such as flame retardancy, low gas release, and anti-static properties.
[0029] Composite shell structure
[0030] Molded using extrusion injection molding process:
[0031] Outer layer: 1.5mm thick V0-grade flame-retardant PC+ABS alloy (compliant with UL94 standard);
[0032] Visual window components
[0033] Includes a 120° wide-angle viewing area and an LED status indicator scale for multi-angle visibility; quick-installation mechanism.
[0034] Flexible snap-fit assembly: Ω-shaped snap-fit made of ABS and PC materials;
[0035] Guide limiting groove: dovetail groove structure with self-locking angle (tolerance fit H7 / g6).
[0036] During installation, the snap-fit assembly is used to connect to the boss structure of the controller housing (forming an interference fit (interference amount 0.2-0.3mm));
[0037] Pressing the release button during disassembly triggers the elastic deformation unlocking mechanism.
[0038] The transparent layer is tilted at a 15° angle to the controller indicator light to avoid interference from mirror reflections.
[0039] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A controller viewable guard viewing window assembly comprising a viewing window body (1) and a controller boss (7) characterised in that: The observation window body (1) is engaged on the controller boss (7). The bottom center of the observation window body (1) is integrally formed with a engaging component (2) that matches the controller boss (7). The inner side of the observation window body (1) is integrally formed with a guide limiting groove (6). The controller boss (7) is provided with a snap-fit groove (4). The bottom of the observation window body (1) is integrally formed with an Ω-shaped buckle (5) corresponding to the snap-fit groove (4).
2. A controller viewable guard viewing window assembly according to claim 1, wherein: The main body (1) of the observation window includes a flame-retardant PC sheet (11), an antistatic sheet (12), a glass fiber sheet (13) and an ABS alloy sheet (14). The glass fiber sheet (13) is located on the surface of the antistatic sheet (12), the ABS alloy sheet (14) is located on the surface of the glass fiber sheet (13), and the flame-retardant PC sheet (11) is located on the surface of the ABS alloy sheet (14).
3. A controller viewable guard viewing window assembly according to claim 1, wherein: The controller boss (7) is positioned with screws (9), and the controller boss (7) is equipped with a connector (8) and an indicator light (10). The observation window body (1) has wiring reserved slots (3) on both sides of its lower end.
4. A controller viewable guard viewing window assembly according to claim 2, wherein: The flame-retardant PC sheet (11), antistatic sheet (12), glass fiber sheet (13) and ABS alloy sheet (14) are integrally formed by injection molding.
5. A controller viewable guard viewing window assembly according to claim 3, wherein: The controller boss (7) is installed by screws (9), and the observation window body (1) and the wiring reserved groove (3) are integrally formed by compression molding.
6. A controller viewable guard viewing window assembly according to claim 1, wherein: The main body (1) of the observation window is quickly snapped onto the controller boss (7) by means of Ω-shaped buckle (5) and snap-fit groove (4), and the front panel of the main body (1) of the observation window is limited by the guide limiting groove (6).