Front shell assembly, central control switch and whole-house intelligent system

Abstract

The utility model relates to the technical field of central control switches, in particular to a front shell assembly, a central control switch and a whole-house intelligent system. The front shell assembly comprises a front shell, a control panel assembly, a rear cover and a second fixing structure. The front shell is provided with a first fixing structure and a first limiting structure. The control panel assembly comprises a first circuit board and a plurality of functional modules, a first fixing hole and a second limiting structure matched with the first limiting structure are arranged on the first circuit board, the back face of the first circuit board is covered with the rear cover, and a second fixing hole right facing the first fixing hole is formed in the rear cover; the first fixing structure and the second fixing structure are configured to penetrate through the first fixing hole and the second fixing hole and then are connected with each other. According to the central control switch, integrated structure assembly can be realized, each functional module and the first circuit board are designed into a whole, and the front shell, the control panel assembly and the rear cover can be integrally stacked and fixed during assembly, so that the assembly procedures are reduced, the assembly speed is effectively improved, the production benefit is improved, and the product cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of central control switches, and in particular to a front housing assembly, a central control switch and a whole-house intelligent system. Background Art

[0002] With the rapid development of whole-home smart technology, more and more residential homes, hotels, B&Bs, and commercial buildings are using smart central control switches to centrally manage various home devices, systems, and services. This systematic management approach significantly improves the safety, intelligence, comfort, and energy efficiency of users' indoor living and working environments.

[0003] However, the front shell structure of the central control switch or electric control box in the prior art is mainly a weak current structure, usually including a front shell, a PCB mainboard, and various functional modules. Although this structure can meet various functional requirements, its overall design is relatively complex and requires multiple installation steps. Each functional module needs to be installed separately, and subsequent steps such as gluing, sealing, and fixing are required. This makes the assembly process complicated and time-consuming, which in turn reduces the assembly speed and increases production and maintenance costs. In addition, this multi-component assembly method is also prone to errors during the installation process, affecting the overall reliability and durability of the product.

[0004] Based on the above technical background, there is an urgent need for an intelligent central control device with a simpler structure and more efficient assembly to optimize the installation process, improve production efficiency, and ensure the reliability of the equipment. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a front shell assembly, a central control switch and a whole-house intelligent system.

[0006] According to the first aspect of the present application, the front housing assembly provided by the embodiment of the present application includes:

[0007] A front shell, the back of which is provided with a first fixing structure and a first limiting structure;

[0008] A control board assembly includes a first circuit board and a plurality of functional modules disposed on the first circuit board, wherein the first circuit board is provided with a first fixing hole and a second limiting structure matching the first limiting structure, wherein when the first limiting structure and the second limiting structure are in a mating connection, the first fixing hole and the first fixing structure are disposed opposite each other;

[0009] a rear cover, disposed on the rear side of the first circuit board, and having a second fixing hole opposite to the first fixing hole;

[0010] The second fixing structure, the first fixing structure and the second fixing structure are configured to pass through the first fixing hole and the second fixing hole and then be connected to each other.

[0011] Furthermore, the front shell assembly also includes a touch screen. A circle of plastic frame is provided on the front edge of the front shell, and the touch screen is embedded in the plastic frame.

[0012] Furthermore, the first limiting structure is a limiting column provided on the back side of the front shell, and the second limiting structure is a limiting hole or a limiting groove matched with the limiting column.

[0013] Furthermore, the first limiting structure is a screw hole provided on the back of the front shell, and the second fixing structure is a stud, which passes through the second fixing hole and the first fixing hole in sequence and then connects with the screw hole; or

[0014] The first limiting structure is a stud arranged on the back of the front shell, and the second fixing structure is a nut. The stud passes through the first fixing hole and the second fixing hole in sequence and is connected to the nut.

[0015] Furthermore, the functional module includes a pin header seat arranged on the back side of the first circuit board, and the back cover is provided with a pin header through hole for the pin header seat to pass through.

[0016] Furthermore, the functional module includes a network cable interface arranged on the back side of the first circuit board, and the back cover is provided with a network cable interface through-hole for the network cable interface to pass through.

[0017] Furthermore, a plurality of support columns are formed on the back side of the front shell, the first fixing structure and the first limiting structure are respectively arranged on the support columns, and the first circuit board abuts against the support columns.

[0018] Furthermore, the functional module includes a speaker, the front of the speaker protrudes from the front of the first circuit board, and the height of the protruding portion is the same as the height of the support column.

[0019] According to a second aspect of the present application, a central control switch is provided that includes the front housing assembly provided in the first aspect of the present application. The central control switch includes the front housing assembly and the rear housing assembly provided in the first aspect of the present application, wherein a plurality of first connecting structures are provided on an edge of the rear surface of the front housing, and a second connecting structure is provided on the rear housing assembly, wherein the first connecting structures are mated and connected to the second connecting structures.

[0020] Furthermore, a boss is formed on the back of the rear cover, the rear shell assembly includes a rear shell and a second circuit board, the rear shell shell of the rear shell includes a mounting cavity for accommodating the second circuit board, and the boss is engaged and connected with the mounting cavity.

[0021] According to the third aspect of the present application, the present application also provides a whole-house intelligent system, which includes the central control switch provided in the second aspect of the present application.

[0022] The front shell assembly of the present application can realize an integrated structural assembly, integrating each functional module with the first circuit board design. During assembly, the front shell, control panel assembly and rear cover can be stacked and fixed as a whole, reducing the assembly process, effectively improving the assembly speed, improving production efficiency and reducing product costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0024] Figure 1 Schematic diagram of the three-dimensional structure of the front housing assembly provided in the embodiment of the present application Figure 1 ;

[0025] Figure 2 Schematic diagram of the three-dimensional structure of the front housing assembly provided in the embodiment of the present application Figure 2 ;

[0026] Figure 3 A schematic diagram of the exploded structure of the front housing assembly provided in an embodiment of the present application;

[0027] Figure 4 Schematic diagram of the exploded structure of the front shell assembly structure provided in the embodiment of the present application Figure 1 ;

[0028] Figure 5 for Figure 4 A magnified view of the details of part A;

[0029] Figure 6 Schematic diagram of the exploded structure of the front shell assembly structure provided in the embodiment of the present application Figure 2 ;

[0030] Figure 7 Schematic diagram of the back structure of the front shell assembly structure provided in the embodiment of the present application Figure 1 ;

[0031] Figure 8 A schematic diagram of the front structure of the rear housing provided in an embodiment of the present application;

[0032] Figure 9 A schematic diagram of the connection between the terminal accommodating cavity and the insulating partition provided in an embodiment of the present application;

[0033] Figure 10A schematic diagram of the back structure of the rear shell provided in an embodiment of the present application;

[0034] Figure 11 This is a rear view of the central control switch provided in an embodiment of the present application in a tilted state;

[0035] Figure 12 A schematic diagram of the installation of the mounting base provided in an embodiment of the present application;

[0036] Figure 13 A schematic diagram of the front structure of the rear housing assembly provided in an embodiment of the present application;

[0037] Figure 14 An exploded view of the rear housing assembly provided in an embodiment of the present application;

[0038] Figure 15 A schematic diagram of the arrangement of the terminal assembly in the rear housing provided in an embodiment of the present application;

[0039] Figure 16 A schematic diagram of the arrangement of the second circuit board in the rear housing provided in an embodiment of the present application;

[0040] Figure 17 A schematic diagram of the connection socket provided in an embodiment of the present application;

[0041] Figure 18 A cross-sectional view of a rear housing assembly provided in an embodiment of the present application;

[0042] Figure 19 Provided in the embodiments of this application Figure 18 A magnified view of the details of part B;

[0043] Figure 20 A schematic structural diagram of a terminal assembly provided in an embodiment of the present application;

[0044] Figure 21 A rear view of the central control switch provided in an embodiment of the present application;

[0045] Figure 22 The embodiment of this application provides Figure 21 Cross-sectional view of CC;

[0046] Figure 23 The embodiment of this application provides Figure 21 Cross-sectional view of the middle DD;

[0047] Figure 24 Provided in the embodiments of this application Figure 23 A magnified detail of part E in the middle.

[0048] In the picture:

[0049] 100. Front housing assembly;

[0050] 110, front housing; 111, front housing shell; 1111, first fixing structure; 1112, first limiting structure; 1113, cable via; 1114, support column; 112, plastic frame; 113, side panel; 1131, temperature and humidity detection port; 1132, memory card expansion port; 1133, data transmission interface; 1134, button opening; 1135, speaker port; 1136, first connecting structure; 1137, crowbar;

[0051] 120, control board assembly; 121, first circuit board; 1211, first fixing hole; 1212, second limiting structure; 122, pin header; 123, network cable interface; 124, speaker;

[0052] 130, rear cover; 131, second fixing hole; 132, pin header hole; 133, network cable interface hole; 134, boss;

[0053] 140. Second fixed structure;

[0054] 150. Touch screen; 151. Microphone;

[0055] 160, soft cable;

[0056] 200, rear housing assembly;

[0057] 210, rear housing; 211, rear housing shell; 2111, mounting cavity; 2112, edge portion; 2113, wiring opening; 2114, partition; 2115, labeling portion; 212, terminal accommodating cavity; 213, insulating separator; 2131, extension section; 214, second connecting structure; 2141, first clamping portion; 2142, second clamping portion; 2143, third clamping portion; 2144, fourth clamping portion; 215, positioning structure; 216, mounting base; 2161, bottom groove; 2162, bolt hole; 2163, side groove; 217, heat dissipation structure; 218, connection base; 218a, first connection base; 218b, second connection base; 218c, third connection base; 2181, column; 2182, reinforcement structure; 2183, threaded hole; 2184, explosion-proof sink; 219, interface structure; 2191, network cable port; 2192, 485 interface;

[0058] 220, second circuit board; 221, mating portion; 222, insert; 2221, first rough structure; 2222, insert body; 223, plug-in portion; 224, first connecting hole; 225, first avoidance portion;

[0059] 230, terminal assembly; 231, terminal; 232, terminal; 2321, first plate; 2322, second plate; 2323, third plate; 2324, second rough structure;

[0060] 240, fireproof insulation; 241, hollow portion; 242, second connection hole; 243, second avoidance portion;

[0061] 250, connector;

[0062] 300. Wiring harness. DETAILED DESCRIPTION

[0063] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0064] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a system, product or device comprising a series of units is not necessarily limited to those units explicitly listed, but may include units that are not explicitly listed or are inherent to these products or devices.

[0065] In this application, terms such as "upper," "lower," "inner," "middle," and "outer" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to specific positions, or to their construction or operation in a specific position.

[0066] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0067] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0068] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0069] In order to solve the technical problems of complex product structure, complex installation process and low assembly speed in related technologies. Figure 1-7 As shown, the present application provides a front housing assembly 100 , which is used for a central control switch. The main structure of the front housing assembly 100 includes a front housing 110 , a control panel assembly 120 , a rear cover 130 and a second fixing structure 140 . Among them, the back of the front shell 110 is provided with a first fixing structure 1111 and a first limiting structure 1112; the control board assembly 120 includes a first circuit board 121 and several functional modules arranged on the first circuit board 121, and the first circuit board 121 is provided with a first fixing hole 1211 and a second limiting structure 1212 matching the first limiting structure 1112. When the first limiting structure 1112 and the second limiting structure 1212 are matched and connected, the first fixing hole 1211 is arranged opposite to the first fixing structure 1111; the back cover 130 is covered on the back of the first circuit board 121, and the back cover 130 is provided with a second fixing hole 131 facing the first fixing hole 1211; the first fixing structure 1111 and the second fixing structure 140 are configured to pass through the first fixing hole 1211 and the second fixing hole 131 and then be connected to each other.

[0070] In this embodiment of the present application, the back of the front housing 110 is equipped with a first fixing structure 1111 and a first limiting structure 1112. The first limiting structure 1112 is used to position the subsequent control board assembly 120. The control board assembly 120 is a monolithic structure consisting of a first circuit board 121 and multiple functional modules mounted on the first circuit board 121. These functional modules integrate different control functions, simplifying the structural complexity. The first circuit board 121 is designed with a second limiting structure 1212 for positioning. This second limiting structure 1212 aligns with the first limiting structure 1112 on the front housing 110 to ensure precise alignment. During assembly, the installer can position the first circuit board 121 along the first limiting structure 1112, allowing it to be directly positioned and assembled on the back of the front housing 110. This process does not require additional manual alignment. The cooperation between the first limiting structure 1112 and the second limiting structure 1212 allows for a single-step positioning and installation, simplifying the assembly process. Subsequently, the back cover 130 is mounted on the back side of the first circuit board 121. The back cover 130 is also provided with a second fixing hole 131 that is opposite to the first fixing hole 1211. By inserting the first fixing structure 1111 and the second fixing structure 140 through the first fixing hole 1211 and the second fixing hole 131 and fixing them together, a stable connection is formed between the front housing 110, the first circuit board 121, and the back cover 130.

[0071] In this embodiment, each functional module is arranged on the first circuit board 121 to form an integrated control board assembly 120, making the assembly process more convenient and reducing the steps of installing functional modules one by one in traditional assembly. During assembly, the first circuit board 121 can be picked up and installed in place on the back of the front shell 110 at one time with the help of the first limiting structure 1112 and the second limiting structure 1212. Then, after the back cover 130 is covered, the first fixing structure 1111 and the second fixing structure 140 are passed through the first fixing hole 1211 and the second fixing hole 131 and then connected to each other to complete the fixing of the front shell assembly 100. The overall stacked fixing structure reduces the dispersion of parts, reduces the number of assembly steps, effectively improves the assembly speed, and further reduces production costs.

[0072] In some embodiments, as Figure 4-6As shown, the front housing assembly 100 also includes a touch screen 150. A plastic frame 112 is provided on the front edge of the front housing 110, and the touch screen 150 is embedded in the plastic frame 112. The touch screen 150 is used to provide interactive operation functions for the intelligent central control switch. The touch screen 150 is embedded in the front of the front housing 110. In order to improve the stability of the assembly and the touch experience, a plastic frame 112 is specially designed on the front edge of the front housing 110, and the touch screen 150 is embedded in the plastic frame 112. Specifically, the front housing 110 includes a plate-shaped front housing 111. The plastic frame 112 is provided on the front of the front housing 111, and a side panel 113 is formed on the edge of the back of the front housing 111. The control panel assembly 120 and the rear cover 130 are located in the space enclosed by the front housing 111 and the side panel 113. The side panels 113 at the back edge of the front housing 111 enclose a storage area, securely housing the control board assembly 120 and the rear cover 130. The side panels 113 provide a strong physical barrier for the control board assembly 120 and the rear cover 130, reducing the risk of dust, moisture, and other damage to the circuit components and extending the life of the device. Furthermore, the design of the side panels 113 enhances the overall structural strength of the front housing 110.

[0073] During assembly, first align the touch screen 150 with the front edge of the front shell 110, and lightly press the touch screen 150 to embed it into the plastic frame 112. The plastic frame 112 provides effective fixing and buffering to prevent the touch screen 150 from loosening due to mechanical vibration or external force during use. At the same time, the design of the plastic frame 112 also has sealing and dustproof functions, which makes the connection between the touch screen 150 and the front shell 110 tighter, preventing dust and moisture from entering and affecting touch sensitivity. In addition, since the touch screen 150 is embedded in the plastic frame 112, the edge of the touch screen 150 will not directly contact the hard edge of the front shell 110, further protecting the durability of the touch screen 150 glass and reducing the risk of damage caused by edge bumps. By installing the touch screen 150 in this way, the assembly process is simplified, and no additional brackets or screws are required for fixing, which greatly improves the overall structural stability and appearance of the front shell assembly 100, while optimizing assembly efficiency.

[0074] The width of the plastic frame 112 can be selected and designed as needed. Considering the narrow bezel design, the width of the plastic frame 112 is preferably 0.5-1 mm, and most preferably 0.7 mm. This thickness maintains the necessary frame shape, facilitating quick alignment of the touch screen 150 with the inner side of the plastic frame 112 for mounting and attachment, thus improving efficiency. Furthermore, this thickness of the plastic frame 112 protects the edges of the touch screen 150, making it less susceptible to damage. Furthermore, the design of the plastic frame 112 effectively improves the feel of the touch screen 150's edges, preventing cuts from glass and other materials, thereby ensuring user safety.

[0075] Optionally, a microphone 151 is integrated on the touch screen 150, so that the central control switch has the ability of voice interaction. By integrating the microphone 151, the user can use voice commands to control the central control switch and the home appliances connected to it, which simplifies the operation process and enhances the interactive experience of the smart home. Integrating the microphone 151 on the touch screen 150 eliminates the need for additional voice control equipment, reduces the number of components and equipment costs, and simplifies the installation and maintenance of the system. The microphone 151 is integrated in the touch screen 150. The sound receiving hole of the microphone 151 is opened on the touch screen 150, which is closer to the user and can better capture sound signals, thereby improving the accuracy of voice recognition. It can effectively receive voice commands even in noisy environments, bringing users a more convenient smart home experience.

[0076] Optionally, the front housing assembly 100 further includes a flexible flat cable 160. A flat cable via 1113 is defined in the front housing 111 of the front housing 110. The flexible flat cable 160 extends through the flat cable via 1113. One end of the flexible flat cable 160 is connected to the touch screen 150 on the front of the front housing 111, and the other end is connected to the first circuit board 121 on the back of the front housing 111. The flexible flat cable 160 is used to establish an electrical connection between the touch screen 150 and the first circuit board 121. The design of the flat cable via 1113 allows the flexible flat cable 160 to pass directly from the touch screen 150 to the first circuit board 121 on the back, without the need for additional wiring or brackets. This simplifies the wiring process and optimizes the internal layout of the front housing assembly 100. The flexible material of flexible flat cable 160 can bend flexibly within a limited space, adapting to the different planar layouts between the front and back surfaces of front housing 111. This flexibility allows flexible flat cable 160 to smoothly pass through cable vias 1113 and reliably connect to first circuit board 121, preventing damage or breakage due to space constraints. Specifically, one end of flexible flat cable 160 connects to the touch elements and microphone 151 within touch screen 150, while the other end connects to first circuit board 121. This ensures that touch and audio data from touch screen 150 are quickly and accurately transmitted to control board assembly 120, and also transmits feedback data from control board assembly 120 to the corresponding modules of touch screen 150.

[0077] In some embodiments, the first limiting structure 1112 is a limiting column provided on the back side of the front shell 110, and the second limiting structure 1212 is a limiting hole or a limiting groove matched with the limiting column.

[0078] The second limiting structure 1212 can be designed in two forms: a limiting hole and a limiting slot. The limiting hole is a closed through-hole directly provided on the first circuit board 121, forming a complete, closed circular or square hole that securely engages with the limiting post on the back of the front housing 110 during assembly, providing stable positioning. The limiting slot, on the other hand, is a slotted structure extending through the edge of the first circuit board 121, opening from the edge and extending into the interior of the first circuit board 121 to form a non-enclosed open slot. The limiting slot design allows for more flexible alignment of the first circuit board 121 with the front housing 110 during installation, allowing it to quickly engage with the limiting post with a simple slide. This slotted design offers a certain degree of tolerance during installation and is highly adaptable to the assembly space. Therefore, the limiting slot design is preferred. For example, the second limiting structures 1212 shown in the various figures of this application all employ limiting slots. By providing the second limiting structure 1212 in the form of both limiting holes and limiting slots on the first circuit board 121, users can select the optimal limiting method based on their actual assembly requirements.

[0079] During assembly, the limiting holes or limiting grooves on the first circuit board 121 are aligned with the limiting posts on the back of the front shell 110. The control panel assembly 120 can be accurately positioned on the back of the front shell 110 through the interlocking connection between the limiting posts and the limiting holes or limiting grooves. This limiting structure ensures the accurate installation of the control panel assembly 120, avoids offset or loosening, and improves assembly accuracy. In addition, the design of the limiting posts and the limiting holes or limiting grooves also simplifies the installation steps. The assembler only needs to gently press the first circuit board 121 toward the limiting posts to quickly position it with the back of the front shell 110 without repeated adjustments, which greatly improves the assembly speed and efficiency. At the same time, this limiting structure can also effectively prevent the control panel assembly 120 from being displaced due to vibration or external force during subsequent operation, thereby enhancing the reliability of the product.

[0080] In some embodiments, the first fixing structure 1111 is a screw hole provided on the back of the front housing 110, and the second fixing structure 140 is a stud, which sequentially passes through the second fixing hole 131 and the first fixing hole 1211 before being connected to the screw hole. Alternatively, the first fixing structure 1111 is a stud provided on the back of the front housing 110, and the second fixing structure 140 is a nut, which sequentially passes through the first fixing hole 1211 and the second fixing hole 131 before being connected to the nut.

[0081] This embodiment provides two optional methods: a first fixing structure 1111 and a second fixing structure 140 .

[0082] Optionally, the first fixing structure 1111 can be a screw hole provided on the back of the front shell 110, while the second fixing structure 140 is a stud. During the assembly process, the stud first passes through the second fixing hole 131 on the back cover 130 and the first fixing hole 1211 on the first circuit board 121 in sequence, and then screws into the screw hole on the back of the front shell 110, thereby achieving precise positioning and tight connection between the components. Since the structure of the stud is relatively stable, it can provide higher strength for the entire front shell assembly 100 and effectively prevent loosening or displacement between the layers after assembly. In addition, the use of studs greatly simplifies the overall assembly process. Only a simple screw-in step is required to quickly complete the fixing operation of the front shell assembly 100, which improves production efficiency and reduces the complexity of manual operation.

[0083] Optionally, the first fixing structure 1111 can be a stud provided on the back of the front shell 110, and the second fixing structure 140 can be a nut. During the assembly process, the stud passes through the first fixing hole 1211 on the first circuit board 121 and the second fixing hole 131 on the back cover 130 in sequence, and is finally fastened by the nut. This design not only further simplifies the assembly steps, but also because the connection between the stud and the nut has high shock resistance, the entire front shell assembly 100 can remain firm and not fall off during use, thereby extending the service life of the device. Especially in application scenarios where the device may be subjected to slight vibrations or requires frequent operation during the assembly process, the advantages of this fixing method are more obvious, which can effectively avoid loosening and ensure the overall performance and reliability of the device.

[0084] Through the combination design of different fixed structures, users can flexibly choose the appropriate assembly method to adapt to a variety of installation environments. For example, in some scenarios where the internal space of the equipment is limited, the combination of screw holes and studs can be selected, while in scenarios where higher requirements for shock resistance and stability are required, the combination of studs and nuts can be selected. The accompanying drawings of this application schematically illustrate the combination of screw holes and studs. The diversification of this design method enhances the compatibility and practicality of the front shell assembly 100 and meets diverse assembly requirements. In addition, the modular design of the structure also facilitates later maintenance and disassembly, allowing users to easily replace or upgrade internal modules, improving the maintainability and scalability of the equipment. In summary, the use of a combination of studs-screw holes or studs-nuts not only makes the assembly process of the front shell assembly 100 simple and efficient, but also improves the structural strength and stability after assembly, effectively solving the problems of complex assembly process, low assembly speed, poor stability, etc. in the prior art, and greatly improves the reliability and service life of the equipment.

[0085] In some embodiments, the functional module includes a pin header 122 disposed on the back of the first circuit board 121, and a pin header through hole 132 is provided on the back cover 130 for the pin header 122 to pass through. The pin header 122 extends to the back side of the back cover 130 through the pin header through hole 132 so as to be connected to the back shell assembly to achieve data transmission and power supply. Specifically, the pin header through hole 132 is an opening that is adapted to the size of the pin header 122, so that the pin header 122 can pass through the back cover 130 smoothly, which is not only convenient for plugging into the back shell assembly, but also can maintain good connection stability. Through this structural design, when the front shell assembly 100 is installed, the interfaces of the pin header 122 and the back shell assembly can be quickly aligned and accurately connected, effectively improving assembly efficiency, reducing the need for manual adjustment and redundant fixings, and thus simplifying the assembly process. At the same time, the pin header 122 design can ensure the stability of data transmission and the continuity of power supply, further improving the overall performance and reliability of the central control switch.

[0086] In addition, the pin header through hole 132 and the pin header seat 122 can assist in achieving rapid positioning between the first circuit board 121 and the back cover 130. After the pin header seat 122 passes through the pin header through hole 132, the second fixing hole 131 on the back cover 130 can be exactly aligned with the first fixing hole 1211 on the first circuit board 121. Specifically, after the pin header seat 122 passes through the pin header through hole 132, due to the precise fit between the pin header seat 122 and the pin header through hole 132, the back cover 130 and the first circuit board 121 are instantly positioned to the predetermined position. This design ensures that the second fixing hole 131 on the back cover 130 and the first fixing hole 1211 on the first circuit board 121 can be automatically aligned, achieving an unbiased match of the fixed structure. This positioning mechanism reduces manual adjustments during assembly, further simplifies the assembly steps, increases assembly speed, and significantly reduces the risk of assembly errors. Ultimately, this structural design not only optimizes the assembly process but also improves installation efficiency.

[0087] In some embodiments, the functional module includes a network cable interface 123 provided on the back of the first circuit board 121, and a network cable interface through-hole 133 is provided on the back cover 130 for the network cable interface 123 to pass through. The network cable interface 123 is used to achieve network connection and data transmission, so that the user can conveniently access the network when using the central control switch. To this end, a network cable interface through-hole 133 is provided on the back cover 130 for the network cable interface 123 to pass through. The design of the network cable interface through-hole 133 ensures that the network cable interface 123 can be safely and conveniently connected to the external network, avoiding damage caused by friction or extrusion at the interface. In addition, the size and position of the network cable interface through-hole 133 have been precisely designed to effectively align the network cable interface 123, thereby ensuring the stability and reliability of the connection. The optimization of this structure not only improves the practicality of the product, but also simplifies the user's connection process, making network access more convenient and improving the overall user experience.

[0088] In addition, the network cable interface through-hole 133 and the network cable interface 123 can assist in achieving rapid positioning between the first circuit board 121 and the back cover 130. After the network cable interface 123 passes through the network cable interface through-hole 133, the second fixing hole 131 on the back cover 130 can be exactly opposite the first fixing hole 1211 on the first circuit board 121. Specifically, after the network cable interface 123 passes through the network cable interface through-hole 133, due to the precise fit between the network cable interface 123 and the network cable interface through-hole 133, the back cover 130 and the first circuit board 121 are instantly positioned to the predetermined position. This design ensures that the second fixing hole 131 on the back cover 130 and the first fixing hole 1211 on the first circuit board 121 can be automatically aligned, achieving an unbiased match of the fixed structure. This positioning mechanism reduces manual adjustments during assembly, further simplifies the installation steps of the components, improves the assembly speed, and significantly reduces the risks caused by assembly errors.

[0089] In some embodiments, as Figure 3 and Figure 6 As shown, several support columns 1114 are formed on the back of the front shell 110, specifically, several support columns 1114 are formed on the back of the front shell shell 111 of the front shell 110, the first fixing structure 1111 and the first limiting structure 1112 are respectively arranged on the support columns 1114, and the first circuit board 121 is abutted against the support columns 1114.

[0090] First, the design of these support columns 1114 is intended to provide additional support points for the first circuit board 121 to improve support stability. The first fixing structure 1111 and the first limiting structure 1112 are respectively arranged on these support columns 1114, so that the first circuit board 121 can abut against the support columns 1114. This design can provide multi-point support for the first circuit board 121. The contact method relative to the entire surface can effectively prevent the first circuit board 121 from vibrating and moving during use, ensuring that it maintains a stable position on the back of the front shell 110, thereby improving overall product reliability.

[0091] On the second aspect, a large number of electrical components, such as capacitors and resistors, are integrated on the front of the first circuit board 121. The layout and design of these components are intended to achieve efficient circuit functions. However, due to the height and volume of electrical components, directly fitting the first circuit board 121 tightly to the back of the front shell 110 may cause the components to be squeezed, thereby affecting their performance and stability. The several support columns 1114 formed on the back of the front shell 110 effectively form a space between the first circuit board 121 and the front shell 110. This space not only provides sufficient accommodation space for electrical components, prevents them from colliding or squeezing with the front shell 110, and ensures that the components can work normally, but also avoids potential short circuit risks.

[0092] Thirdly, the design of the support column 1114 provides additional heat dissipation space in the space formed between the back of the front shell 110 and the first circuit board 121, which can increase air circulation to a certain extent, reduce the operating temperature of the components, help electrical components to effectively dissipate heat during operation, and extend the service life of the product.

[0093] It should be noted that the layout and number of support columns 1114 can be adjusted according to actual needs. On the premise of adapting the number and position of the first fixed structure 1111 and the first limiting mechanism, uniform support for the first circuit board 121 can be achieved to avoid bending or damage of the first circuit board 121 due to excessive local force.

[0094] In some embodiments, the functional module includes a speaker 124, the front of which protrudes from the front of the first circuit board 121 and the height of the protruding portion is the same as the height of the support column 1114. The height of the protruding portion of the front of the speaker 124 is consistent with the height of the support column 1114, which rationally utilizes the space between the first circuit board 121 and the front shell 110, avoids the excessive size of the speaker 124 occupying the space of other functional modules, and makes the entire internal layout more compact and orderly. During the assembly process, the speaker 124 can also be easily aligned with the back of the front shell 110, simplifying the assembly process, reducing potential assembly errors, and improving production and assembly efficiency. In addition, this design ensures that the front of the speaker 124 can perfectly fit the back of the front shell 110, which can effectively reduce the leakage of sound waves between the speaker 124 and the back of the front shell 110, improve the sound quality, make the sound more concentrated, and provide a better listening experience. The large-area contact between the speaker 124 and the back of the front shell 110 can also better offset the frequent vibrations generated by sound waves during the operation of the speaker 124 itself, thereby improving its stability during operation, reducing the risk of loosening due to vibration, and thus extending the service life of the speaker 124.

[0095] like Figure 1 and 2 As shown, in some embodiments, the side panel 113 of the front shell 110 is designed with several functional openings to facilitate external operation and environmental interaction. These functional openings include but are not limited to: temperature and humidity detection port 1131, memory card expansion port 1132, data transmission interface 1133, button opening 1134, speaker port 1135, etc. Corresponding functional modules are integrated in corresponding positions on the first circuit board 121, such as temperature and humidity detection sensor, memory card drive, data transmission connector, button, speaker 124, etc. Each functional module precisely corresponds to the position of each functional opening to ensure the optimal implementation of the module function. The temperature and humidity detection sensor is integrated on the first circuit board 121 and is arranged opposite the temperature and humidity detection port 1131. It can accurately collect temperature and humidity data of the environment around the device, which is helpful for real-time monitoring of environmental conditions. The memory card expansion port 1132 is connected to the memory card drive, providing flexible expansion for the storage needs of the device. Users can easily add or replace memory cards through the expansion port to facilitate data storage or device upgrades. The data transmission interface 1133 corresponds to the data transmission connector on the first circuit board 121. This interface enables rapid data exchange with external devices, meeting user communication needs such as interfacing with control systems or data backup. The button module aligns with the button opening 1134, facilitating direct user operation of device settings. The speaker 124 aligns with the speaker opening 1135, providing audio feedback and enhancing the user experience.

[0096] In some embodiments, a plurality of first connection structures 1136 are provided on the edge of the back side of the front housing 110. The first connection structures 1136 are specifically provided on the inner side of the side plate 113. The first connection structures 1136 cooperate with corresponding components on the rear housing assembly.

[0097] like Figure 8-23 As shown, a schematic diagram of the structure of the rear housing assembly 200 and the central control switch in an embodiment of the present application is given. The rear housing assembly 200 includes a rear housing 210 and a second circuit board 220. The rear housing shell 211 of the rear housing 210 includes a mounting cavity 2111 for accommodating the second circuit board 220. In some embodiments of the present application, please refer to Figure 8 、 Figure 10 and Figure 11 The rear shell body 211 also includes an edge portion 2112, which is located at the outer periphery of the installation cavity 2111. A second connecting structure 214 is provided on the edge portion 2112. The second connecting structure 214 is used to connect with the first connecting structure 1136 on the front shell assembly 100, and is used to achieve a circumferential connection between the rear shell body 211 and the front shell 110 of the front shell assembly 100, thereby achieving assembly between the rear shell assembly 200 and the front shell assembly 100, and is used to form a complete central control switch or electrical control box.

[0098] In the above embodiment, the first connection structure 1136 and the second connection structure 214 can be a clamping structure, a threaded connection structure or a screw (bolt) installation structure, all of which can achieve the purpose of the present application.

[0099] In some preferred embodiments of the present application, the first connecting member structure 1136 includes a plurality of clips, which are circumferentially distributed along the inner wall of the side panel 113; the second connecting structure 214 includes a plurality of clips, which are circumferentially arranged along the edge portion 2112; the rear shell body 211 and the front shell assembly 100 can be quickly disassembled and assembled through the clips and the clips, thereby improving the assembly efficiency of the central control switch or the electrical control box.

[0100] In some embodiments of this application, please refer to Figure 11 In the diagonal direction of the rear shell 211, multiple clamping parts are staggered on both sides of the rear shell 211. When the central control switch or the electric control box is pried along the prying opening 1137 at one corner for disassembly, the prying opening 1137 can be specifically opened on the side plate 113 of the front shell assembly 100, such as Figure 4-6 As shown, when the front housing assembly 100 is separated from the rear housing 210 , the multiple clamping portions can be released in sequence along the diagonal extension direction of the rear housing shell 211 .

[0101] As a specific embodiment of the present application, the second connecting structure 214 includes a first clamping portion 2141, a second clamping portion 2142, a third clamping portion 2143 and a fourth clamping portion 2144. When the diagonal direction of the rear shell 211 is Figure 11 When the front shell assembly 100 is in the vertical direction, the four clamping parts are staggered on the left and right sides of the diagonal (that is, the corresponding height positions of the multiple clamping parts on the diagonal do not overlap). When the disassembly tool is inserted from the prying opening 1137 at a corner of the front shell assembly 100, the rear shell 210 is separated from the front shell assembly 100 by the principle of leverage. During the separation process, the first clamping part 2141, the second clamping part 2142, the third clamping part 2143 and the fourth clamping part 2144 are sequentially released from the snaps provided on the front shell assembly 100, which can reduce the difficulty of separating the front shell assembly 100 and the rear shell 210. When the front shell assembly 100 and the rear shell 210 are in the connected state, the multiple clamping parts are unevenly distributed on the outer periphery of the edge portion 2112 and the multiple snaps are unevenly distributed on the inner wall of the side plate 113, so that the clamping connection between the front shell assembly 100 and the rear shell 210 is not easy to be ejected in a natural state.

[0102] In the above embodiments, the engaging portion may be a latching tooth or a latching slot, and the front housing assembly 100 is provided with a snap structure matching the latching tooth or the latching slot, both of which can achieve the purpose of the present application.

[0103] In some embodiments of this application, please refer to Figure 8 and Figure 12 A positioning structure 215 is also provided on the edge portion 2112. The positioning structure 215 is configured to match the front housing assembly 100 and can be used to improve the assembly accuracy of the front housing assembly 100 and the rear housing 210, thereby ensuring assembly quality. The positioning structure 215 can be a positioning column, a positioning surface, a positioning boss, or a combination of multiple positioning structures 215. As long as the positioning and matching effect with the front housing assembly 100 is achieved, the purpose of this application can be achieved.

[0104] In some preferred embodiments of the present application, the positioning structure 215 includes an arc-shaped positioning protrusion and an 8-shaped positioning hole provided at the two corners of the edge portion 2112. The shapes and layout orientations of the positioning structures 215 at the two corners of the edge portion 2112 can be different, so that the rear shell 210 can only be positioned and matched with the front shell assembly 100 in a specific orientation (that is, there is only one accurate positioning and matching position), which can achieve fool-proof positioning operation and is beneficial to improving the positioning accuracy of the rear shell 210 and the front shell assembly 100. Specifically, the positioning structure 215 can achieve positioning and matching with the second fixing structure 140 of the front shell assembly 100. When the second fixing structure 140 is selected as a stud or a nut, it protrudes from the back of the back cover 130. The positioning structure 215 includes an arc-shaped positioning protrusion provided at the two corners of the edge portion 2112. The inner arc surface of the arc-shaped positioning protrusion can be limitedly matched with the outer arc surface of the stud or the nut. In some embodiments, such as Figure 2 and 3 As shown, a boss 134 is formed on the back of the rear cover 130. The boss 134 is used to cooperate with the corresponding component on the rear shell assembly 200. Specifically, the shape of the mounting cavity 2111 on the rear shell assembly 200 matches the shape of the boss 134. When the front shell assembly 110 and the rear shell assembly 120 are assembled together, the boss 134 can be precisely embedded in the mounting cavity 2111, and the two are interlocked and connected. Relying on the specific shapes of the boss 134 and the mounting cavity 2111, the rear shell 210 can only be positioned and matched with the front shell assembly 100 in a specific orientation, which can achieve fool-proof positioning operation and help improve the positioning accuracy of the rear shell 210 and the front shell assembly 100. In addition, the boss 134 and the mounting cavity 2111 are of sufficiently large size relative to the overall structure. The interlocking of the two can improve the firmness of the connection between the front shell assembly 100 and the rear shell assembly 200.

[0105] In the rear shell assembly 200 in the related art, the adjacent terminal accommodating cavities cannot completely isolate the wiring harnesses, which easily leads to technical problems such as electrical short circuits and the generation of strong electric arcs. In some embodiments of the present application, the rear shell 210 realizes the mutual independence between the two adjacent terminal accommodating cavities 212 by setting an insulating partition 213 between the two adjacent terminal accommodating cavities 212, and the insulating partition 213 also has an extension section 2131 toward the second circuit board 220, which can be used to cut off the air gap channel between the two adjacent terminal accommodating cavities 212 to avoid contact between the wiring harnesses 300 in the two adjacent terminal accommodating cavities 212, or ionize the air gap channel to become a conductive channel, which can avoid the occurrence of electrical short circuits or the generation of strong electric arcs.

[0106] See also Figures 8 to 24In a first aspect, an embodiment of the present application provides a rear shell 210, comprising a rear shell shell 211 and a plurality of terminal accommodating cavities 212. The rear shell shell 211 comprises an installation cavity 2111 for accommodating a second circuit board 220, which can be used to achieve fixed installation and protection of the second circuit board 220 in the rear shell 210. Figure 8 and Figure 16 As shown, the second circuit board 220 can be prevented from shifting during use, thereby preventing the connection between the second circuit board 220 and other components from being affected.

[0107] Multiple terminal accommodating cavities 212 are arranged side by side, and the installation cavity 2111 is connected to the multiple terminal accommodating cavities 212. Figure 8 As shown, the terminal assembly 230 and the wiring harness 300 in the terminal accommodating cavity 212 are electrically connected to the second circuit board 220 in the mounting cavity 2111. An insulating partition 213 is provided between two adjacent terminal accommodating cavities 212. The insulating partition 213 has an extension section 2131 toward the second circuit board 220, which is used to cut off the air gap channel between the two adjacent terminal accommodating cavities 212 in the arrangement direction. Figure 8 and Figure 9 As shown; it can avoid the wiring harness 300 in two adjacent terminal accommodating cavities 212 from contacting each other, or avoid the air gap channel from becoming a conductive channel due to ionization, and can achieve arc isolation between two adjacent terminal accommodating cavities 212, avoiding the occurrence of power short circuit or strong electric arc.

[0108] It should be noted that the terminal accommodating cavities 212 in the electrical control box body in the prior art are arranged in such a way that the tops of the multiple terminal accommodating cavities 212 are flush, that is, the end faces of the multiple terminal accommodating cavities 212 facing the second circuit board 220 are on the same plane, and the plane is parallel to the board surface of the second circuit board 220. When the plane and the board surface of the second circuit board 220 are both in a horizontal state (or both in a vertical state), once there is a longitudinal assembly gap between the plane and the board surface of the second circuit board 220, there will be a transverse horizontal gap (that is, an air gap channel with the same length as the side wall thickness of the terminal accommodating cavity 212) between the two adjacent terminal accommodating cavities 212, which will cause the wiring harnesses 300 in the two adjacent terminal accommodating cavities 212 to easily come into contact or easily generate strong electric arcs due to air ionization.

[0109] In the present application, an extension section 2131 is provided at one end of the insulating partition 213 facing the second circuit board 220, so that the extension section 2131 can protrude from the top end surface of the plurality of terminal accommodating cavities 212. Even if there is a longitudinal assembly gap between the top end surface of the terminal accommodating cavity 212 and the board surface of the second circuit board 220, the transverse horizontal gap between the two adjacent terminal accommodating cavities 212 can be cut off by the extension section 2131, thereby realizing the mutual separation of the two adjacent terminal accommodating cavities 212 in the arrangement direction, thereby avoiding contact between the wiring harnesses 300 in the two adjacent terminal accommodating cavities 212 or the generation of strong electric arcs due to ionization of air in the air gap channel.

[0110] In some embodiments of this application, please refer to Figure 9 、 Figure 16 and Figure 22 The extension section 2131 is plugged into the second circuit board 220, so that the two adjacent terminal accommodating cavities 212 can be aligned in the arrangement direction (the arrangement direction is Figure 22 Complete separation is achieved in the left and right directions).

[0111] In other embodiments of the present application, the extension section 2131 abuts against the second circuit board 220 , which can also achieve complete separation of two adjacent terminal accommodating cavities 212 in the arrangement direction.

[0112] In the above embodiment, if the cooperation between the extension section 2131 and the second circuit board 220 is achieved by abutting, the extension length of the extension section 2131 needs to be precisely controlled to avoid the situation in which the extension section 2131 pushes the second circuit board 220 away from the preset assembly position during the assembly process. Alternatively, the extension section 2131 needs to be set as an elastic material, which can be compressed and deformed during the cooperation with the second circuit board 220. When the cooperation between the extension section 2131 and the second circuit board 220 is achieved by plugging, the extension section 2131 can be made of a rigid material, and its length only needs to be greater than the assembly gap between the top end face of the terminal accommodating cavity 212 and the board surface of the second circuit board 220. This can reduce the difficulty of making the extension section 2131. Therefore, the present application preferably plugs the extension section 2131 onto the second circuit board 220, such as Figure 14 、 Figure 16 and Figure 22 shown.

[0113] In some embodiments of this application, please refer to Figure 8 and Figure 9The insulating separator 213 is a plate-like structure, and the plate-like structure and the side wall of the terminal accommodating cavity 212 are an integrated structure, so that the insulating separator 213 and the side wall of the terminal accommodating cavity 212 can be integrated, so that the insulating separator 213 is configured as the side wall of the terminal accommodating cavity 212, so that the rear shell body 211, the terminal accommodating cavity 212 and the insulating separator 213 can be prepared by an integrated injection molding process, which is beneficial to reduce the difficulty of manufacturing the insulating separator 213 and the terminal accommodating cavity 212.

[0114] In some embodiments of this application, see Figure 10 、 Figure 21 、 Figure 22 and Figure 24 The rear shell 211 is also provided with a plurality of wiring openings 2113, which are arranged one-to-one with the plurality of terminal accommodating cavities 212, allowing the wiring harness 300 to extend into the interior of the terminal accommodating cavities 212 through the wiring openings 2113. Specifically, the wiring openings 2113 are provided on the back of the rear shell 211, allowing the front and rear sides of the terminal assembly 230 to connect to the plug 222 in the second circuit board 220 and the wiring harness 300, respectively.

[0115] In some embodiments of this application, please refer to Figure 10 、 Figure 21 、 Figure 22 and Figure 24 , partitions 2114 are provided on both sides of the wiring opening 2113 , which can be used to isolate the wiring harness 300 from each other on the back of the rear shell 210 .

[0116] In some embodiments of the present application, the number of the terminal accommodating chambers 212 is four, which can be used to implement the installation of a wiring harness 300 with one neutral wire and three live wires, such as Figure 11 shown.

[0117] In some embodiments of this application, see Figure 8 、 Figure 10 、 Figure 12 and Figure 13 The edge portion 2112 is also provided with a mounting seat 216 for securing the rear housing 210 to a wall or a bottom housing, where the bottom housing is a socket bottom box reserved for a building wall. The mounting seat 216 has a recessed structure that is recessed toward the side of the edge portion 2112 facing away from the front housing assembly 100. This prevents the top of the bolt disposed in the bolt hole 2162 of the mounting seat 216 from protruding from the front side of the edge portion 2112 (i.e., the side closest to the front housing assembly 100), thereby preventing the bolt head from contacting or interfering with the front housing assembly 100.

[0118] In some embodiments of the present application, the recessed structure includes a concave cavity formed by connecting a bottom groove 2161 and a side groove 2163. The shape and size of the concave cavity can be designed according to needs to meet the assembly requirements between the mounting seats 216 on both sides of the rear shell 210 and the bottom shell, while meeting the requirements for stable connection between the rear shell 210 and the bottom shell, avoiding mutual interference between the two.

[0119] In some embodiments of this application, see Figure 8 and Figure 10 A heat dissipation structure 217 is provided on the sidewall of the mounting cavity 2111. This structure is used to dissipate heat generated during the operation of the second circuit board 220 toward the outside of the mounting cavity 2111 through the heat dissipation structure 217, thereby preventing the temperature inside the mounting cavity 2111 from being too high and affecting the operating efficiency of the second circuit board 220. Specifically, the heat dissipation structure 217 includes a plurality of heat dissipation slots provided on the sidewall of the mounting cavity 2111, allowing the heat generated by the second circuit board 220 to be dissipated into the external air through the heat dissipation slots.

[0120] In some embodiments of the present application, an interface structure 219 is further provided on the rear shell 211 for installing a communication interface, thereby realizing information interaction between the central control switch and multiple devices.

[0121] As a specific embodiment of the present application, a network cable port 2191 and a 485 interface 2192 are provided on the back of the rear shell body 211, wherein the network cable port 2191 can allow the network cable of the low-voltage module in the front shell assembly 100 to pass through, and the network cable port 2191 is arranged opposite to the network cable interface through hole 133 and the network cable interface 123 on the front shell assembly 100, and the 485 interface 2192 is used to connect with various electrical equipment (such as air conditioners, lights, televisions, etc.) to realize communication.

[0122] In some embodiments of this application, see Figure 10 The back of the rear shell 211 is also provided with a labeling portion 2115, which can be used to stick the label information of the rear shell 210 to facilitate production personnel to identify the type and specifications of the rear shell.

[0123] See also Figures 8 to 24 In a second aspect of the embodiment of the present application, a rear housing assembly 200 is provided, comprising the rear housing 210 in the above embodiment, and further comprising a second circuit board 220. The second circuit board 220 is provided with a plurality of mating portions 221, and the plurality of mating portions 221 are arranged in a one-to-one correspondence with the plurality of extension sections 2131, such as Figure 14 and Figure 16 As shown, it is possible to avoid the existence of an air gap channel between two adjacent terminal accommodating cavities 212, and to position the second circuit board 220 for assembly through the extension section 2131.

[0124] In some embodiments of this application, please refer to Figure 14 and Figure 16 The mating portion 221 is a plug-in slot opened on the second circuit board 220, into which the extension section 2131 of the insulating partition 213 can be inserted, thereby realizing the plug-in fit between the extension section 2131 and the second circuit board 220, so that the air gap channel between the two adjacent terminal accommodating cavities 212 in the arrangement direction is cut off, thereby avoiding the generation of electrical short circuits and strong electric arcs.

[0125] It should be noted that the second circuit board 220 is a strong power module control board in the rear housing assembly 200, specifically a PCB board. Various components are provided on the second circuit board 220, and also includes a plug 222 for connecting to the terminal assembly 230 and the wiring harness 300, such as Figure 22 、 Figure 23 and Figure 24 shown.

[0126] In some embodiments of this application, please refer to Figure 10 、 Figure 14 、 Figure 15 、 Figure 20 and Figure 24 The rear housing assembly 200 also includes a plurality of terminal assemblies 230, which are disposed one by one in the plurality of terminal accommodating cavities 212 and are used to electrically connect the plurality of wiring harnesses 300 to the inserts 222 of the second circuit board 220. The terminal accommodating cavities 212 limit the terminal assemblies 230, allowing them to be inserted or removed only from the side of the terminal accommodating cavities 212 facing the second circuit board 220, thereby ensuring the installation stability of the terminal assemblies 230.

[0127] The terminal assembly 230 includes a terminal 231 and a terminal 232. The terminal 231 and the terminal 232 are movably connected and can be used to change the relative position between the terminal 231 and the terminal 232, thereby achieving compression of the wiring harness 300. The second circuit board 220 has a plurality of plug-ins 222, and the plurality of plug-ins 222 are arranged in a one-to-one correspondence with the plurality of terminal 232, so that the inner walls of the plug-ins 222 and the terminal 232 enclose the installation space of the wiring harness 300. Figure 24 The insert 222 and the terminal 232 are both provided with a rough structure. When the insert 222 and the terminal 232 press the wire harness 300, the rough structure can increase the friction between the inner wall of the installation space and the wire harness 300, thereby improving the installation stability of the wire harness 300.

[0128] It should be noted that the rough structure may be a raised structure, a textured structure, a hammered structure, or the like, which makes the inner wall of the terminal block 232 and the surface of the insert 222 uneven, and all of these structures can achieve the purpose of this application.

[0129] As a specific embodiment of the present application, a first rough structure 2221 is provided on the surface of the plug body 2222 facing the wire harness 300, and the first rough structure 2221 is a convex structure; the inner wall of the terminal 232 is provided with a second rough structure 2324, and the second rough structure 2324 is a texture structure, such as Figure 20 、 Figure 22 and Figure 24 As shown, the friction force generated on the wire harness 300 can be increased.

[0130] In some embodiments of this application, see Figure 20 The terminal block 232 includes a first plate 2321, a second plate 2322, and a third plate 2323. The first plate 2321 and the second plate 2322 are both planar plates, while the third plate 2323 is a semi-enclosed U-shaped plate. The third plate 2323 is connected to the first plate 2321 and the second plate 2322 at both ends. The first plate 2321 and the second plate 2322 are arranged parallel and overlapping, with the first plate 2321 located outside the second plate 2322. The terminal block 231 is threadedly connected to the first plate 2321, and the end of the terminal block 231 facing the insert 222 abuts against the second plate 2322. The insert 222 is inserted into the enclosed space formed by the second plate 2322 and the third plate 2323, and is arranged opposite the second plate 2322. After the wiring harness 300 extends into between the plug 222 and the second plate 2322 through the wiring opening 2113, the threaded connection position between the terminal 231 and the first plate 2321 is changed by rotating the terminal post 231, and the second plate 2322 is squeezed by the end of the terminal post 231, so that the second plate 2322 and the plug 222 are pressed tightly against both sides of the wiring harness 300. The conductive area between the wiring harness 300 and the wiring terminal 232 and the plug 222 can be increased through surface contact, thereby increasing the current flux.

[0131] The first plate 2321, the third plate 2323 and the second plate 2322 are an integral structure and can be made by bending elastic materials, such as Figure 20 As shown, the wire harness 300 is compressed by the compression deformation of the second plate 2322 , thereby achieving electrical connection between the wire harness 300 and the plug 222 .

[0132] It should be noted that in the prior art, the terminal 232 is usually directly welded to the second circuit board 220, and then the wiring harness 300 is directly pressed against the inner wall of the terminal 232 through the terminal post 231. This setting method has the following disadvantages: First, when the tail end of the terminal post 231 is processed, sharp edges or burrs are likely to exist. When the terminal post 231 is directly squeezed and contacted with the wiring harness 300, it is easy to cause damage to the wiring harness 300, and in severe cases, it may even cause the wiring harness 300 to break; second, the contact area between the tail end of the terminal post 231 and the wiring harness 300 is small, which will limit the current flux. Compared to the prior art, the present application utilizes the terminal block 231 to squeeze the second plate 2322, allowing the second plate 2322 and the insert 222 to cooperate and compress the wiring harness 300, thereby achieving electrical connection between the wiring harness 300 and the second circuit board 220. This not only increases the conductive area between the wiring harness 300 and the terminal block 232 and the insert 222, thereby improving current flow, but also prevents damage to the wiring harness 300 and improves the installation stability of the wiring harness 300. Furthermore, the terminal block 232 does not need to be soldered to the second circuit board 220. Without the connection restrictions of the second circuit board 220, the assembly efficiency between the terminal block assembly 230 and the terminal block accommodating cavity 212 can be improved.

[0133] In some embodiments of this application, please refer to Figure 13 、 Figure 14 、 Figure 18 and Figure 22 The rear shell assembly 200 also includes a fireproof insulating member 240, which is stacked with the second circuit board 220. The fireproof insulating member 240 is located on the side of the second circuit board 220 facing the front shell assembly 100. It can be used to achieve isolation between the high-voltage part of the rear shell assembly 200 and the low-voltage part of the front shell assembly 100, preventing users from getting electric shock when touching the operating interface of the touch screen 150 of the front shell assembly 100, and can also effectively improve the flame retardant performance of the rear shell assembly 200 and the central control switch.

[0134] In some embodiments of the present application, the fireproof insulating member 240 is a plate-like structure made of fireproof plastic (such as flame-retardant polypropylene, phosphate ester plastic, etc.), and its outer peripheral contour matches the inner wall of the installation cavity 2111, so that the fireproof insulating member 240 can be embedded in the installation cavity 2111. Figure 13 、 Figure 18 、 Figure 22 and Figure 23 shown.

[0135] In some embodiments of this application, please refer to Figure 13 、 Figure 14 and Figure 16The second circuit board 220 is provided with a plug-in portion 223 on the side facing the front shell assembly 100. The plug-in portion 223 is used to plug and cooperate with the pin header 122 of the front shell assembly 100 to achieve signal connection. The fireproof insulation member 240 is provided with a hollow portion 241 that matches the plug-in portion 223 to prevent the setting of the fireproof insulation member 240 from interfering with the plug-in connection between the weak current module of the front shell assembly 100 and the second circuit board 220 in the rear shell 210. Specifically, the plug-in portion 223 can be a female connector or a plug-in connector, etc., which is used to achieve signal connection between the strong current control board (i.e., the second circuit board 220) of the rear shell 210 and the weak current module of the front shell assembly 100, thereby realizing control signal transmission between the front shell assembly 100 and the rear shell assembly 200.

[0136] In some embodiments of the present application, in order to prevent the second circuit board 220 and the fireproof insulating member 240 from interfering with the extension of the network cable of the front shell assembly 100, a first avoidance portion 225 is provided on the second circuit board 220, and a second avoidance portion 243 is provided on the fireproof insulating member 240, so that the network cable of the front shell assembly 100 can pass through the second avoidance portion 243, the first avoidance portion 225 and the network cable outlet 2191 in sequence.

[0137] In some embodiments of this application, see Figure 8 、 Figure 13 、 Figure 14 and Figure 15 A plurality of connecting seats 218 are provided inside the installation cavity 2111, and a plurality of connecting holes are provided on the second circuit board 220 and the fireproof insulating member 240. A connecting member 250 matching the connecting hole is provided in the connecting seat 218 to realize the connection between the connecting seat 218, the second circuit board 220 and the fireproof insulating member 240, and realize the fixed setting of the second circuit board 220 and the fireproof insulating member 240 inside the installation cavity 2111, so as to avoid the second circuit board 220 and the fireproof insulating member 240 from shaking inside the rear shell shell 211 of the rear shell 210.

[0138] In some embodiments of the present application, a plurality of first connection holes 224 are provided on the second circuit board 220, and a plurality of second connection holes 242 are provided on the fireproof insulation 240. Each connection seat 218 has a first connection hole 224 and a second connection hole 242 corresponding to the position. The connecting member 250 is inserted into the second connection hole 242 and the first connection hole 224 in sequence to realize the connection with the connection seat 218.

[0139] In some embodiments of this application, see Figure 18 and Figure 19 The second connecting hole 242 on the fireproof insulating member 240 is a countersunk hole. When the connecting member 250 is a screw, the head of the screw can be prevented from exceeding the upper surface of the fireproof insulating member 240, thereby preventing the screw head from interfering with the components in the front shell assembly 100.

[0140] In some embodiments of this application, please refer to Figure 8 、 Figure 14 、 Figure 17 、 Figure 18 and Figure 19 The connection base 218 includes a column 2181 and a reinforcing rib structure 2182. A threaded hole 2183 and an explosion-proof sink 2184 are provided in the middle of the column 2181. The threaded hole 2183 is used for threaded connection with the connector 250. The explosion-proof sink 2184 is located at the end of the threaded hole 2183 near the second circuit board 220. Because the connection base 218 is made of insulating plastic, when the threads of the connector 250 penetrate the connection base 218, plastic debris will be drilled out of the inner wall of the threaded hole 2183. The explosion-proof sink 2184 can be used to accommodate the unscrewed plastic debris, preventing excessive plastic debris from extruding the column 2181 of the connection column. The reinforcing rib structure 2182 is connected between the column 2181 and the inner wall of the installation cavity 2111, and can be used to enhance the overall structural strength of the connection base 218.

[0141] In some embodiments of the present application, a first connecting seat 2218a, a second connecting seat 2218b and a third connecting seat 2218c are provided in the installation cavity 2111, and the three connecting seats 218 are distributed in a triangular shape in the installation cavity 2111, which can ensure that the second circuit board 220 and the fire-proof insulation part 240 are evenly stressed; two of the connecting seats 218 (the first connecting seat 2218a and the second connecting seat 2218b) and the multiple terminal accommodating cavities 212 are located on the same side of the rear shell 211, because the second circuit board 220 needs to be connected to multiple wiring harnesses 300, multiple terminal blocks 232 and 485 interfaces 2192 on this side at the same time, and the stress situation is more complicated. Setting the two connecting seats 218 on this side can be used to enhance the connection strength of the second circuit board 220 on the side of the terminal accommodating cavity 212.

[0142] See also Figures 1 to 24 An embodiment of the present application provides a central control switch, including the front shell 100 and the rear shell assembly 200 in the above embodiment. The front shell assembly 100 and the rear shell assembly 200 are detachably connected, which can facilitate the assembly and maintenance of the central control switch.

[0143] The front shell assembly 100 also includes components such as a touch screen, which can be used to realize information interaction between the central control switch and the user. In some preferred embodiments of the present application, the central control switch includes a four-inch central control voice smart screen, and the user can control the central control switch through voice, touch, etc. Compared with the existing technology, the central control switch of the present application has the advantages of high safety, strong stability, simple structure, low cost, easy assembly, etc., and has broad application prospects. The specific structure of the front shell assembly 100 can be referred to Figure 1-7 And the previous records.

[0144] See also Figures 1 to 24 The embodiment of the present application also provides a whole-house intelligent system, including the central control switch in the above embodiment, and also including multiple electrical devices connected to the central control switch signal. The central control switch can be used to achieve whole-house intelligent control, realize systematic centralized management of various home appliances, systems and services inside the house, and improve the safety, intelligence, comfort and energy saving of users' home life or work.

[0145] See also Figures 8 to 24 In some embodiments of the present application, the assembly process of the rear housing assembly 200 is as follows:

[0146] Step 1: Place the terminal assembly 230 in the terminal accommodating cavity 212;

[0147] Step 2: Place the second circuit board 220 on the plurality of connection bases 218 and support the second circuit board 220 through the connection bases 218; insert the plurality of extension sections 2131 into the mating portions 221 of the second circuit board 220 accordingly;

[0148] Step 3: Place the fireproof insulating member 240 above the second circuit board 220, so that the plug-in portion 223 on the second circuit board 220 passes through the hollow portion 241 of the fireproof insulating member 240, and align the second connecting hole 242 with the first connecting hole 224;

[0149] Step 4: Connect the multiple connectors 250 to the multiple connector seats 218 to fix the fireproof insulation 240 and the second circuit board 220;

[0150] Step 5: Insert the wire harness 300 into the installation space of the wire harness 300 formed by the plug 222 and the terminal 232, tighten the terminal 231, and press the wire harness 300 through the second plate 2322 and the plug 222; complete the installation of all wire harnesses 300 in sequence.

[0151] Some embodiments in this specification are described in a progressive or parallel manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referenced to each other.

[0152] The above are merely specific embodiments of the present application to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but rather is intended to conform to the widest scope consistent with the principles and novel features of the present application.

Claims

1. A front housing assembly, characterized in that: include: A front shell, the back of which is provided with a first fixing structure and a first limiting structure; A control board assembly includes a first circuit board and a plurality of functional modules disposed on the first circuit board, wherein the first circuit board is provided with a first fixing hole and a second limiting structure matching the first limiting structure, wherein when the first limiting structure and the second limiting structure are in a mating connection, the first fixing hole and the first fixing structure are disposed opposite each other; a rear cover, disposed on the rear side of the first circuit board, and having a second fixing hole opposite to the first fixing hole; The second fixing structure, the first fixing structure and the second fixing structure are configured to pass through the first fixing hole and the second fixing hole and then be connected to each other.

2. The front housing assembly according to claim 1, characterized in that: It also includes a touch screen. A plastic frame is provided on the front edge of the front shell, and the touch screen is embedded in the plastic frame.

3. The front housing assembly according to claim 1, characterized in that: The first limiting structure is a limiting column arranged on the back side of the front shell, and the second limiting structure is a limiting hole or a limiting groove matched with the limiting column.

4. The front housing assembly according to claim 1, characterized in that: The first fixing structure is a screw hole provided on the back of the front housing, and the second fixing structure is a stud, which passes through the second fixing hole and the first fixing hole in sequence and then connects with the screw hole; or The first fixing structure is a stud arranged on the back of the front shell, and the second fixing structure is a nut. The stud passes through the first fixing hole and the second fixing hole in sequence and is connected to the nut.

5. The front housing assembly according to claim 1, characterized in that: The functional module includes a pin header seat arranged on the back of the first circuit board, and the back cover is provided with a pin header through hole for the pin header seat to pass through.

6. The front housing assembly according to claim 1, characterized in that: The functional module includes a network cable interface arranged on the back of the first circuit board, and the back cover is provided with a network cable interface through-hole for the network cable interface to pass through.

7. The front housing assembly according to claim 1, characterized in that: A plurality of support columns are formed on the back side of the front shell, the first fixing structure and the first limiting structure are respectively arranged on the support columns, and the first circuit board abuts against the support columns.

8. The front housing assembly according to claim 7, characterized in that: The functional module includes a speaker, the front of the speaker protrudes from the front of the first circuit board, and the height of the protruding portion is the same as the height of the support column.

9. A central control switch, characterized in that: It comprises the front shell assembly and the rear shell assembly as described in any one of claims 1 to 8, wherein a plurality of first connection structures are provided on the edge of the back side of the front shell, and a second connection structure is provided on the rear shell assembly, and the first connection structure is matched and connected with the second connection structure.

10. The central control switch according to claim 9, characterized in that: A boss is formed on the back side of the rear cover. The rear shell assembly includes a rear shell and a second circuit board. The rear shell shell of the rear shell includes a mounting cavity for accommodating the second circuit board. The boss is engaged with the mounting cavity.

11. A whole-house intelligent system, characterized in that: Including the central control switch as described in claim 9 or 10.

Images