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

Abstract

The invention relates to a rear shell, a rear shell assembly, a central control switch and a whole-house intelligent system, the rear shell comprises a shell and a plurality of binding post accommodating cavities, and the shell comprises a mounting cavity for accommodating a circuit board; the plurality of binding post accommodating cavities are arranged side by side, and the mounting cavity is communicated with the plurality of binding post accommodating cavities; an insulating separator is arranged between two adjacent binding post accommodating cavities, the insulating separator is provided with an extension section facing the circuit board, and the extension section is used for realizing arc isolation between the two adjacent binding post accommodating cavities. According to the rear shell provided by the invention, the two adjacent binding post accommodating cavities are independent from each other through the arrangement of the insulating separator, and the insulating separator is also provided with the extension section facing the circuit board, so that an air gap channel between the two adjacent binding post accommodating cavities can be cut off; the wiring harnesses in the two adjacent binding post accommodating cavities can be prevented from being in contact, or an air gap channel can be prevented from becoming a conductive channel due to ionization, and the condition of power-on short circuit or strong electric arc generation can be avoided.

Description

Technical Field

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

[0002] With the development of whole-house smart technology, more and more places such as residential houses, hotels, homestays and commercial buildings use smart central control switches to carry out systematic and centralized management of various home appliances, systems and services within the venue, greatly improving the safety, intelligence, comfort and energy saving of users' home life or work and study in the venue.

[0003] In the prior art, components such as central control switches or electric control boxes are often provided with multiple terminal assemblies on the rear shell to realize the electrical connection between the high-voltage circuit board and the external wiring harness (such as live wire, neutral wire, etc.). When the two adjacent terminal accommodating cavities on the rear shell are not completely separated and a small air gap appears, the two adjacent wiring harnesses are prone to contact or the air becomes a conductive channel due to ionization, which can easily lead to power short circuit and the generation of high-voltage arc, thereby affecting the normal use of the central control switch or the electric control box. Summary of the invention

[0004] The present application provides a rear shell, a rear shell assembly, a central control switch and a whole-house intelligent system to solve the technical problem in the prior art that the wiring harness cannot be completely isolated between adjacent terminal accommodating cavities, which easily leads to power short circuits and the generation of strong electric arcs.

[0005] In a first aspect, the present application provides a back shell, comprising:

[0006] A housing, the housing comprising a mounting cavity for accommodating a circuit board;

[0007] Multiple terminal accommodating cavities are arranged side by side, and the installation cavity is connected to the multiple terminal accommodating cavities; an insulating partition is provided between two adjacent terminal accommodating cavities, and the insulating partition has an extension section toward the circuit board, and the extension section is used to achieve arc isolation between two adjacent terminal accommodating cavities.

[0008] Optionally, the extension section is plugged into or abutted against the circuit board.

[0009] Optionally, the insulating separator is a plate-like structure, and the plate-like structure and the side wall of the terminal accommodating cavity are an integral structure.

[0010] Optionally, the housing further comprises an edge portion, and the edge portion is located at the periphery of the installation cavity;

[0011] A connecting structure is provided on the edge portion, and the connecting structure is used to be connected with the front housing assembly.

[0012] Optionally, the connection structure includes a plurality of clamping portions, the plurality of clamping portions are arranged circumferentially along the edge portion, and in a diagonal direction of the shell, the plurality of clamping portions are staggeredly arranged on both sides of the shell.

[0013] Optionally, a positioning structure is further provided on the edge portion, and the positioning structure is matched with the front shell assembly.

[0014] Optionally, a mounting seat is further provided on the edge portion, and the mounting seat has a recessed structure, and the recessed structure is recessed toward a side of the edge portion away from the front shell assembly.

[0015] Optionally, a heat dissipation structure is provided on a side wall of the installation cavity.

[0016] In a second aspect, the present application provides a rear shell assembly, including the rear shell provided in the first aspect of the present application, and also including a circuit board, on which a plurality of mating parts are provided, and the plurality of mating parts are arranged in one-to-one correspondence with the plurality of extension sections.

[0017] Optionally, the matching portion is a plug-in slot provided on the circuit board.

[0018] Optionally, the rear housing assembly further comprises a plurality of terminal assemblies, and the plurality of terminal assemblies are disposed in the plurality of terminal accommodating cavities in a one-to-one correspondence;

[0019] The terminal assembly includes a terminal and a terminal, the terminal is movably connected to the terminal, a plurality of plugs are provided on the circuit board, the plurality of plugs are arranged in one-to-one correspondence with the plurality of terminals, and the inner walls of the plugs and the terminals enclose a wiring harness installation space.

[0020] Optionally, both the plug and the terminal block are provided with a rough structure.

[0021] Optionally, the rear housing assembly further includes a fireproof insulating member, which is stacked with the circuit board and is located on a side of the circuit board close to the front housing assembly.

[0022] Optionally, a plug-in portion is provided on the side of the circuit board facing the front shell assembly, and the plug-in portion is used to achieve signal connection with the front shell assembly. A hollow portion matching the plug-in portion is provided on the fireproof insulating member.

[0023] Optionally, a plurality of connection seats are provided inside the installation cavity, a plurality of connection holes are provided on the circuit board and the fireproof insulating member, and a connection member matching the connection holes is provided in the connection seat to realize the connection between the connection seat, the circuit board and the fireproof insulating member.

[0024] Optionally, the connecting seat includes a column and a reinforcing rib structure, a threaded hole and an explosion-proof sinker are opened in the middle of the column, and the explosion-proof sinker is located at one end of the threaded hole close to the circuit board; the reinforcing rib structure is connected between the column and the inner wall of the installation cavity.

[0025] In a third aspect, the present application provides a central control switch, including the rear shell assembly provided in the second aspect of the present application, and also including a front shell assembly, and the front shell assembly and the rear shell assembly are detachably connected.

[0026] In a fourth aspect, the present application provides a whole-house smart system, including the central control switch provided in the third aspect of the present application.

[0027] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0028] The rear shell provided in the embodiment of the present application achieves independence between two adjacent terminal accommodating cavities by providing an insulating partition between the two adjacent terminal accommodating cavities, and the insulating partition also has an extension section toward the circuit board, which can be used to cut off the air gap channel between the two adjacent terminal accommodating cavities, thereby preventing the wiring harnesses in the two adjacent terminal accommodating cavities from contacting each other, or preventing the air gap channel from becoming a conductive channel due to ionization, and can be used to achieve arc isolation between the two adjacent terminal accommodating cavities to avoid short circuits or strong electric arcs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0032] Figure 1 A schematic diagram of the front structure of the rear housing provided in an embodiment of the present application;

[0033] Figure 2 A schematic diagram of the connection between the terminal receiving cavity and the insulating partition provided in an embodiment of the present application;

[0034] Figure 3 A schematic diagram of the back structure of the rear shell provided in an embodiment of the present application;

[0035] Figure 4 A rear view of the central control switch provided in an embodiment of the present application in a tilted state;

[0036] Figure 5 A schematic diagram of the installation of the mounting base provided in the embodiment of the present application;

[0037] Figure 6 A schematic diagram of the front structure of the rear housing assembly provided in an embodiment of the present application;

[0038] Figure 7 An exploded view of a rear housing assembly provided in an embodiment of the present application;

[0039] Figure 8 A schematic diagram of the arrangement of the terminal assembly in the rear housing provided in an embodiment of the present application;

[0040] Fig. 9 A schematic diagram of the arrangement of a circuit board in a rear housing provided in an embodiment of the present application;

[0041] Fig.10 A schematic diagram of the connection socket provided in an embodiment of the present application;

[0042] Fig.11 A cross-sectional view of a rear housing assembly provided in an embodiment of the present application;

[0043] Fig.12 Provided in the embodiments of this application Fig.11 A magnified view of the details of part A;

[0044] Fig.13 A schematic diagram of the structure of a terminal assembly provided in an embodiment of the present application;

[0045] Fig.14 A rear view of the central control switch provided in an embodiment of the present application;

[0046] Fig.15 The embodiment of the present application provides Fig.14 Cross-sectional view of the middle BB;

[0047] Fig.16 The embodiment of the present application provides Fig.14 Cross-sectional view of CC;

[0048] Fig.17 Provided in the embodiments of this application Fig.16 A magnified detail of section D.

[0049] Description of reference numerals:

[0050] 1. Back shell; 11. Shell; 111. Installation cavity; 112. Edge; 113. Wiring opening; 114. Partition; 115. Labeling part; 12. Terminal accommodating cavity; 13. Insulating partition; 131. Extension section; 14. Connection structure; 141. First clamping part; 142. Second clamping part; 143. Third clamping part; 144. Fourth clamping part; 15. Positioning structure; 16. Mounting seat; 161. Bottom groove; 162. Bolt through hole; 163. Side groove; 17. Heat dissipation structure; 18. Connection seat; 18a. First connection seat; 18b. Second connection seat; 18c. Third connection seat; 181. Column; 182. Reinforcement rib structure; 183. Threaded hole; 184. Explosion-proof sink; 19. Interface structure; 191. Network cable interface; 192. 485 interface;

[0051] 2. Circuit board; 21. Matching part; 22. Insertion piece; 221. First rough structure; 222. Insertion piece body; 23. Insertion part; 24. First connection hole; 25. First avoidance part;

[0052] 3. Terminal assembly; 31. Terminal; 32. Terminal; 321. First plate; 322. Second plate; 323. Third plate; 324. Second rough structure;

[0053] 4. Fireproof insulation; 41. Hollow portion; 42. Second connection hole; 43. Second avoidance portion;

[0054] 5. Connectors;

[0055] 6. Front shell assembly; 61. Prying opening;

[0056] 7. Wiring harness. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0058] The disclosure below provides many different embodiments or examples to implement the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0059] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0060] In order to solve the technical problem in the prior art that adjacent terminal accommodating cavities cannot completely isolate the wiring harness, which easily leads to power-on short circuits and the generation of strong electric arcs, the present application provides a rear shell 1, a rear shell assembly, a central control switch and a whole-house intelligent system. The rear shell 1 achieves the mutual independence between two adjacent terminal accommodating cavities 12 by setting an insulating partition 13 between two adjacent terminal accommodating cavities 12, and the insulating partition 13 also has an extension section 131 toward the circuit board 2, which can be used to cut off the air gap channel between the two adjacent terminal accommodating cavities 12 to avoid contact between the wiring harnesses 7 in the two adjacent terminal accommodating cavities 12, or ionize the air gap channel to become a conductive channel, which can avoid power-on short circuits or the generation of strong electric arcs.

[0061] See also Figures 1 to 17 In a first aspect, an embodiment of the present application provides a rear housing 1, comprising a housing 11 and a plurality of terminal accommodating cavities 12, wherein the housing 11 comprises an installation cavity 111 for accommodating a circuit board 2, which can be used to achieve fixed installation and protection of the circuit board 2 in the rear housing 1, such as Figure 1 and Fig. 9 As shown, the circuit board 2 can be prevented from shifting during use, thereby affecting the connection between the circuit board 2 and other components.

[0062] A plurality of terminal accommodating cavities 12 are arranged side by side, and the mounting cavity 111 is connected to the plurality of terminal accommodating cavities 12. Figure 1As shown, the terminal assembly 3 and the wiring harness 7 in the terminal accommodating cavity 12 are electrically connected to the circuit board 2 in the mounting cavity 111. An insulating partition 13 is provided between two adjacent terminal accommodating cavities 12. The insulating partition 13 has an extension section 131 toward the circuit board 2, which is used to cut off the air gap channel between the two adjacent terminal accommodating cavities 12 in the arrangement direction. Figure 1 and Figure 2 As shown; it can avoid contact between the wiring harnesses 7 in two adjacent terminal accommodating cavities 12, or avoid the air gap channel becoming a conductive channel due to ionization, and can achieve arc isolation between two adjacent terminal accommodating cavities 12, avoiding the occurrence of power-on short circuit or generation of strong electric arc.

[0063] It should be noted that the terminal accommodating cavities 12 in the electric control box body in the prior art are arranged in such a way that the tops of the multiple terminal accommodating cavities 12 are flush, that is, the end surfaces of the multiple terminal accommodating cavities 12 facing the circuit board 2 are on the same plane, and the plane is parallel to the board surface of the circuit board 2. When the plane and the board surface of the circuit board 2 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 circuit board 2, 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 12) between the two adjacent terminal accommodating cavities 12, which will cause the wiring harnesses 7 in the two adjacent terminal accommodating cavities 12 to easily come into contact or easily generate strong electric arcs due to air ionization.

[0064] In the present application, an extension section 131 is provided at one end of the insulating partition 13 facing the circuit board 2, so that the extension section 131 can protrude from the top end surfaces of the plurality of terminal accommodating cavities 12. Even if there is a longitudinal assembly gap between the top end surfaces of the terminal accommodating cavities 12 and the board surface of the circuit board 2, the transverse horizontal gap between two adjacent terminal accommodating cavities 12 can be cut off by the extension section 131, thereby realizing the mutual separation of the two adjacent terminal accommodating cavities 12 in the arrangement direction, thereby avoiding contact between the wiring harnesses 7 in the two adjacent terminal accommodating cavities 12 or the generation of strong electric arcs due to air ionization in the air gap channel.

[0065] In some embodiments of this application, please refer to Figure 2 , Fig. 9 and Fig.15 The extension section 131 is plugged into the circuit board 2, so that two adjacent terminal accommodating cavities 12 are aligned in the arrangement direction (arrangement direction is Fig.15 Complete separation is achieved in the left and right directions).

[0066] In other embodiments of the present application, the extension section 131 abuts against the circuit board 2, which can also achieve complete separation of two adjacent terminal accommodating cavities 12 in the arrangement direction.

[0067] In the above embodiment, if the cooperation between the extension section 131 and the circuit board 2 is achieved by abutting, it is necessary to accurately control the extension length of the extension section 131 to avoid the situation in which the extension section 131 pushes the circuit board 2 away from the preset assembly position during the assembly process. Alternatively, the extension section 131 needs to be set as an elastic material, which can be compressed and deformed during the cooperation with the circuit board 2. When the cooperation between the extension section 131 and the circuit board 2 is achieved by plugging, the extension section 131 can be made of a rigid material, and its length only needs to be larger than the assembly gap between the top end face of the terminal accommodating cavity 12 and the board surface of the circuit board 2. The difficulty of making the extension section 131 can be reduced. Therefore, the present application preferably plugs the extension section 131 on the circuit board 2, such as Figure 7 , Fig. 9 and Fig.15 shown.

[0068] In some embodiments of this application, please refer to Figure 1 and Figure 2 The insulating separator 13 is a plate-like structure, and the plate-like structure and the side wall of the terminal accommodating cavity 12 are an integrated structure, so that the insulating separator 13 and the side wall of the terminal accommodating cavity 12 can be integrated, and the insulating separator 13 can be configured as the side wall of the terminal accommodating cavity 12, so that the shell 11, the terminal accommodating cavity 12 and the insulating separator 13 can be prepared by a one-piece injection molding process, which is conducive to reducing the difficulty of manufacturing the insulating separator 13 and the terminal accommodating cavity 12.

[0069] In some embodiments of this application, please refer to Figure 3 , Fig.14 , Fig.15 and Fig.17 The housing 11 is also provided with a plurality of wiring openings 113, which are arranged one by one corresponding to the plurality of terminal accommodating chambers 12, so that the wiring harness 7 can extend into the interior of the terminal accommodating chamber 12 through the wiring openings 113. Specifically, the wiring openings 113 are arranged on the back of the housing 11, so that the front and rear sides of the terminal assembly 3 can be connected to the plug 22 in the circuit board 2 and the wiring harness 7 respectively.

[0070] In some embodiments of this application, please refer to Figure 3 , Fig.14 , Fig.15 and Fig.17 , partitions 114 are provided on both sides of the wiring opening 113 , which can be used to isolate the wiring harness 7 from each other on the back of the rear housing 1 .

[0071] In some embodiments of the present application, the number of the terminal accommodating chambers 12 is four, which can be used to implement the installation of a wiring harness 7 with one neutral wire and three live wires, such as Figure 4 shown.

[0072] In some embodiments of this application, please refer to Figure 1 , Figure 3 and Figure 4 The shell 11 also includes an edge portion 112, which is located at the outer periphery of the installation cavity 111. A connecting structure 14 is provided on the edge portion 112, and the connecting structure 14 is used to connect with the front shell assembly 6 to achieve a circumferential connection between the shell 11 and the front shell assembly 6, thereby achieving assembly between the rear shell assembly and the front shell assembly 6 to form a complete central control switch or electric control box.

[0073] In the above embodiments, the connection structure 14 may 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.

[0074] In some preferred embodiments of the present application, the connecting structure 14 includes a plurality of snap-fitting portions, which are circumferentially arranged along the edge portion 112. The snap-fitting connection can realize quick disassembly and assembly between the shell 11 and the front shell assembly 6, thereby improving the assembly efficiency of the central control switch or the electric control box.

[0075] In some embodiments of this application, please refer to Figure 4 In the diagonal direction of the shell 11, multiple clamping parts are alternately arranged on both sides of the shell 11. When the central control switch or the electric control box is pried up along the prying opening 61 at one corner for disassembly to separate the front shell assembly 6 from the rear shell 1, the multiple clamping parts can be released in sequence along the diagonal extension direction of the shell 11.

[0076] As a specific embodiment of the present application, the connecting structure 14 includes a first clamping portion 141, a second clamping portion 142, a third clamping portion 143 and a fourth clamping portion 144. When the diagonal direction of the housing 11 is Figure 4 When the front shell assembly 6 is in the vertical direction, the four clamping parts are staggered on the left and right sides of the diagonal (that is, the height positions of the multiple clamping parts on the diagonal do not overlap). When the disassembly tool is inserted from the prying opening 61 at one corner of the front shell assembly 6, the lever principle is used to separate the rear shell 1 from the front shell assembly 6. During the separation process, the first clamping part 141, the second clamping part 142, the third clamping part 143 and the fourth clamping part 144 are successively released from the front shell assembly 6, which can reduce the difficulty of separation between the front shell assembly 6 and the rear shell 1. When the front shell assembly 6 and the rear shell 1 are in a connected state, since the multiple clamping parts are unevenly distributed on the periphery of the edge part 112, the clamping connection between the front shell assembly 6 and the rear shell 1 is not easy to pop open in a natural state.

[0077] In the above embodiments, the clamping portion may be a clamping tooth or a clamping groove, and the front housing assembly 6 is provided with a clamping structure matching the clamping portion, which can achieve the purpose of the present application.

[0078] In some embodiments of this application, please refer to Figure 1 and Figure 5 The edge portion 112 is also provided with a positioning structure 15, which is matched with the front housing assembly 6 and can be used to improve the assembly accuracy of the front housing assembly 6 and the rear housing 1 and ensure the assembly quality. The positioning structure 15 can be a positioning column, a positioning surface, a positioning boss, or a combination of multiple positioning structures 15. As long as the positioning and matching effect with the front housing assembly 6 can be achieved, the purpose of the present application can be achieved.

[0079] In some preferred embodiments of the present application, the positioning structure 15 includes an arc-shaped positioning protrusion and an 8-shaped positioning hole arranged at the two corners of the edge portion 112. The shape and layout orientation of the positioning structure 15 at the two corners of the edge portion 112 can be different, so that the rear shell 1 can only be positioned and matched with the front shell assembly 6 in a specific orientation (that is, there is only one accurate positioning and matching position), which can realize fool-proof positioning operation, which is beneficial to improving the positioning accuracy of the rear shell 1 and the front shell assembly 6.

[0080] In some embodiments of this application, please refer to Figure 1 , Figure 3 , Figure 5 and Figure 6 The edge portion 112 is also provided with a mounting seat 16 for fixing the rear housing 1 on a wall or a bottom housing, wherein the bottom housing is a socket bottom box reserved on the wall of a building. The mounting seat 16 has a concave structure, which is concave toward the side of the edge portion 112 away from the front housing assembly 6, so as to prevent the top of the bolt disposed in the bolt through hole 162 of the mounting seat 16 from protruding from the front side of the edge portion 112 (i.e., the side close to the front housing assembly 6), thereby preventing the bolt head from contacting or interfering with the front housing assembly 6.

[0081] In some embodiments of the present application, the recessed structure includes a concave cavity formed by connecting a bottom groove 161 and a side groove 163. The shape and size of the concave cavity can be designed according to needs to meet the assembly requirements between the mounting seats 16 on both sides of the rear shell 1 and the bottom shell, while meeting the requirements for stable connection between the rear shell 1 and the bottom shell, avoiding mutual interference between the two.

[0082] In some embodiments of this application, please refer to Figure 1 and Figure 3 A heat dissipation structure 17 is provided on the side wall of the installation cavity 111, which is used to dissipate the heat generated by the circuit board 2 during operation toward the outside of the installation cavity 111 through the heat dissipation structure 17, so as to prevent the temperature inside the installation cavity 111 from being too high and affecting the operation efficiency of the circuit board 2. Specifically, the heat dissipation structure 17 includes a plurality of heat dissipation grooves provided on the side wall of the installation cavity 111, so that the heat generated by the circuit board 2 can be dissipated from the heat dissipation grooves to the outside air.

[0083] In some embodiments of the present application, an interface structure 19 is further provided on the housing 11 for installing a communication interface, thereby realizing information interaction between the central control switch and multiple devices.

[0084] As a specific embodiment of the present application, a network cable interface 191 and a 485 interface 192 are provided on the back of the shell 11, wherein the network cable interface 191 can allow the network cable of the low-voltage module in the front shell assembly 6 to pass through, and the 485 interface 192 is used to connect to a variety of electrical equipment (such as air conditioners, lights, televisions, etc.) to achieve communication.

[0085] In some embodiments of this application, please refer to Figure 3 The back of the shell 11 is also provided with a labeling portion 115, which can be used to stick the label information of the rear shell 1, so that the production personnel can identify the type and specification of the rear shell.

[0086] See also Figures 1 to 17 The second aspect of the embodiment of the present application provides a rear housing assembly, including the rear housing 1 in the above embodiment, and also including a circuit board 2, on which a plurality of mating portions 21 are provided, and the plurality of mating portions 21 are arranged one by one with the plurality of extension sections 131, such as Figure 7 and Fig. 9 As shown, it is possible to avoid the existence of an air gap channel between two adjacent terminal accommodating cavities 12 and to position the circuit board 2 for assembly through the extension section 131 .

[0087] In some embodiments of this application, please refer to Figure 7 and Fig. 9 The mating portion 21 is a plug-in slot opened on the circuit board 2, into which the extension section 131 of the insulating separator 13 can be inserted, so as to achieve plug-in mating between the extension section 131 and the circuit board 2, so that the air gap channel between two adjacent terminal accommodating cavities 12 in the arrangement direction is cut off, thereby avoiding the generation of short circuit and strong electric arc.

[0088] It should be noted that the circuit board 2 is a high-voltage module control board in the rear housing assembly, specifically a PCB board, on which various components are arranged, and also includes a plug 22 for connecting with the terminal assembly 3 and the wiring harness 7, such as Fig.15 , Fig.16 and Fig.17 shown.

[0089] In some embodiments of this application, please refer to Figure 3 , Figure 7 , Figure 8 , Fig.13 and Fig.17The rear housing assembly also includes a plurality of terminal assemblies 3, which are arranged in a plurality of terminal accommodating chambers 12 one by one, and are respectively used to realize the electrical connection between the plurality of wiring harnesses 7 and the plug-in sheets 22 of the circuit board 2. The terminal accommodating chamber 12 has a limiting effect on the terminal assemblies 3, so that the terminal assemblies 3 can only be put in or taken out from the side of the terminal accommodating chamber 12 facing the circuit board 2, which is conducive to ensuring the installation stability of the terminal assemblies 3.

[0090] The terminal assembly 3 includes a terminal 31 and a terminal 32, and the terminal 31 is movably connected to the terminal 32, which can be used to change the relative position between the terminal 31 and the terminal 32, so as to achieve the compression of the wiring harness 7; the circuit board 2 has a plurality of plug-ins 22, and the plurality of plug-ins 22 are arranged in a one-to-one correspondence with the plurality of terminal 32, so that the inner wall of the plug-ins 22 and the terminal 32 encloses the installation space of the wiring harness 7, such as Fig.17 The insert 22 and the wiring terminal 32 are both provided with a rough structure. When the insert 22 and the wiring terminal 32 press the wiring harness 7, the rough structure can increase the friction between the inner wall of the installation space and the wiring harness 7, thereby improving the installation stability of the wiring harness 7.

[0091] It should be noted that the rough structure may be a convex structure, a texture structure or a hammer texture structure, etc., which makes the inner wall of the terminal block 32 and the surface of the plug 22 uneven, and all of them can achieve the purpose of the present application.

[0092] As a specific embodiment of the present application, a first rough structure 221 is provided on the surface of the plug body 222 facing the wiring harness 7, and the first rough structure 221 is a convex structure; a second rough structure 324 is provided on the inner wall of the terminal 32, and the second rough structure 324 is a texture structure, such as Fig.13 , Fig.15 and Fig.17 As shown, the friction force generated on the wire harness 7 can be increased.

[0093] In some embodiments of this application, please refer to Fig.13The connection terminal 32 includes a first plate 321, a second plate 322 and a third plate 323, wherein the first plate 321 and the second plate 322 are both flat plates, the third plate 323 is a semi-enclosed U-shaped plate, the two ends of the third plate 323 are respectively connected to the first plate 321 and the second plate 322, the first plate 321 and the second plate 322 are arranged in parallel and overlapped, and the first plate 321 is located outside the second plate 322. The terminal 31 is threadedly connected to the first plate 321, and one end of the terminal 31 facing the plug 22 abuts against the second plate 322, and the plug 22 is inserted in the closed space formed by the second plate 322 and the third plate 323, and is arranged opposite to the second plate 322. After the wiring harness 7 extends into between the plug 22 and the second plate 322 through the wiring opening 113, the threaded connection position between the terminal 31 and the first plate 321 is changed by rotating the terminal post 31, and the second plate 322 is squeezed by the end of the terminal post 31, so that the second plate 322 and the plug 22 are pressed tightly on both sides of the wiring harness 7. The conductive area between the wiring harness 7 and the terminal 32 and the plug 22 can be increased through surface contact, which can increase the current flux.

[0094] The first plate body 321, the third plate body 323 and the second plate body 322 are an integrated structure and can be made by bending an elastic material, such as Fig.13 As shown, the wire harness 7 is compressed by the compression deformation of the second plate 322 , thereby achieving electrical connection between the wire harness 7 and the plug 22 .

[0095] It should be noted that in the prior art, the terminal 32 is usually directly welded on the circuit board 2, and then the wiring harness 7 is directly pressed against the inner wall of the terminal 32 through the terminal post 31. This arrangement has the following disadvantages: first, when the tail end of the terminal post 31 is processed, sharp edges or burrs are likely to exist. When the terminal post 31 is directly squeezed and contacted with the wiring harness 7, it is easy to damage the wiring harness 7, and even cause the wiring harness 7 to break in severe cases; second, the contact area between the tail end of the terminal post 31 and the wiring harness 7 is small, which will limit the current flux. Compared with the prior art, the present application squeezes the second plate 322 through the terminal post 31, so that the second plate 322 and the plug 22 cooperate to achieve the compression of the wiring harness 7 and the electrical connection between the wiring harness 7 and the circuit board 2, which can not only increase the conductive area between the wiring harness 7 and the terminal 32 and the plug 22, and increase the current flux, but also avoid the wiring harness 7 from being damaged, and improve the installation stability of the wiring harness 7. In addition, the terminal block 32 does not need to be soldered on the circuit board 2. Without the connection restriction of the circuit board 2, the assembly efficiency between the terminal assembly 3 and the terminal accommodating cavity 12 can be improved.

[0096] In some embodiments of this application, please refer to Figure 6 , Figure 7 , Fig.11 and Fig.15 The rear shell assembly also includes a fireproof insulating member 4, which is stacked with the circuit board 2. The fireproof insulating member 4 is located on the side of the circuit board 2 facing the front shell assembly 6, and can be used to achieve isolation between the strong current part of the rear shell assembly and the weak current part of the front shell assembly 6, preventing the user from electric shock when touching the operation interface of the front shell assembly 6, and can also effectively improve the flame retardant performance of the rear shell assembly and the central control switch.

[0097] In some embodiments of the present application, the fireproof insulating member 4 is a plate-like structure made of fireproof plastic (such as flame-retardant polypropylene, phosphate plastic, etc.), and its outer peripheral contour matches the inner wall of the installation cavity 111, so that the fireproof insulating member 4 can be embedded in the installation cavity 111. Figure 6 , Fig.11 , Fig.15 and Fig.16 shown.

[0098] In some embodiments of this application, please refer to Figure 6 , Figure 7 and Fig. 9 The circuit board 2 is provided with a plug-in portion 23 on the side facing the front shell assembly 6, and the plug-in portion 23 is used to realize signal connection with the front shell assembly 6. The fireproof insulating member 4 is provided with a hollow portion 41 matching the plug-in portion 23 to prevent the setting of the fireproof insulating member 4 from interfering with the plug-in connection between the weak current module of the front shell assembly 6 and the circuit board 2 in the rear shell 1. Specifically, the plug-in portion 23 can be a female connector or a plug connector, etc., which is used to realize the signal connection between the strong current control board (i.e., the circuit board 2) of the rear shell 1 and the weak current module of the front shell assembly 6, thereby realizing the control signal transmission between the front shell assembly 6 and the rear shell assembly.

[0099] In some embodiments of the present application, in order to prevent the circuit board 2 and the fireproof insulating component 4 from interfering with the extension of the network cable of the front shell assembly 6, a first avoidance portion 25 is provided on the circuit board 2, and a second avoidance portion 43 is provided on the fireproof insulating component 4, so that the network cable of the front shell assembly 6 can pass through the second avoidance portion 43, the first avoidance portion 25 and the network cable interface 191 in sequence.

[0100] In some embodiments of this application, please refer to Figure 1 , Figure 6 , Figure 7 and Figure 8 A plurality of connection seats 18 are provided inside the installation cavity 111, and a plurality of connection holes are provided on the circuit board 2 and the fireproof insulating member 4. A connection member 5 matching the connection holes is provided in the connection seat 18 to realize the connection between the connection seat 18, the circuit board 2 and the fireproof insulating member 4, so as to realize the fixed setting of the circuit board 2 and the fireproof insulating member 4 inside the installation cavity 111, and prevent the circuit board 2 and the fireproof insulating member 4 from shaking inside the shell 11 of the rear shell 1.

[0101] In some embodiments of the present application, a plurality of first connecting holes 24 are provided on the circuit board 2, a plurality of second connecting holes 42 are provided on the fireproof insulating member 4, each connecting seat 18 has a first connecting hole 24 and a second connecting hole 42 corresponding to the position, and the connecting member 5 is sequentially inserted into the second connecting hole 42 and the first connecting hole 24 to realize the connection with the connecting seat 18.

[0102] In some embodiments of this application, please refer to Fig.11 and Fig.12 The second connecting hole 42 on the fireproof insulating member 4 is a countersunk hole. When the connecting member 5 is a screw, the head of the screw can be prevented from exceeding the upper surface of the fireproof insulating member 4, thereby preventing the head of the screw from interfering with the components in the front shell assembly 6.

[0103] In some embodiments of this application, please refer to Figure 1 , Figure 7 , Fig.10 , Fig.11 and Fig.12 The connection seat 18 includes a column 181 and a reinforcing rib structure 182. A threaded hole 183 and an explosion-proof sink 184 are provided in the middle of the column 181. The threaded hole 183 is used for threaded connection with the connector 5. The explosion-proof sink 184 is located at one end of the threaded hole 183 close to the circuit board 2. Since the connection seat 18 is made of insulating plastic material, when the thread of the connector 5 is tapped into the connection seat 18, plastic debris will be drilled out of the inner wall of the threaded hole 183. The explosion-proof sink 184 can be used to accommodate the plastic debris that is screwed out, and prevent excessive plastic debris from extruding the column 181 of the connection column. The reinforcing rib structure 182 is connected between the column 181 and the inner wall of the installation cavity 111, and can be used to improve the overall structural strength of the connection seat 18.

[0104] In some embodiments of the present application, a first connecting seat 18a, a second connecting seat 18b and a third connecting seat 18c are provided in the installation cavity 111, and the three connecting seats 18 are distributed in a triangular shape in the installation cavity 111, which can ensure that the circuit board 2 and the fire-proof insulation member 4 are subjected to uniform force; two of the connecting seats 18 (the first connecting seat 18a and the second connecting seat 18b) and the multiple terminal accommodating cavities 12 are located on the same side of the shell 11, because the circuit board 2 needs to be connected to multiple wiring harnesses 7, multiple terminal blocks 32 and 485 interfaces 192 on this side at the same time, and the force situation is more complicated. Arranging the two connecting seats 18 on this side can be used to enhance the connection strength of the circuit board 2 on one side of the terminal accommodating cavity 12.

[0105] See also Figures 1 to 17A third aspect of an embodiment of the present application provides a central control switch, including the rear shell assembly in the above embodiment, and also includes a front shell assembly 6. The front shell assembly 6 and the rear shell assembly are detachably connected, which can facilitate the assembly and maintenance of the central control switch.

[0106] The front shell assembly 6 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 prior art, 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.

[0107] See also Figures 1 to 17 The fourth aspect of the embodiment of the present application provides a whole-house intelligent system, including the central control switch in the above embodiment, and also includes multiple electrical devices connected to the central control switch signal. The whole-house intelligent control can be achieved through the central control switch, and systematic centralized management of various home appliances, systems and services inside the house can be achieved, thereby improving the safety, intelligence, comfort and energy saving of users' home life or work.

[0108] See also Figures 1 to 17 In some embodiments of the present application, the assembly process of the rear housing assembly is as follows:

[0109] Step 1: placing the terminal assembly 3 in the terminal accommodating cavity 12;

[0110] Step 2: Place the circuit board 2 on a plurality of connection seats 18 and support the circuit board 2 through the connection seats 18; insert the plurality of extension sections 131 into the matching portions 21 of the circuit board 2 accordingly;

[0111] Step 3: Place the fireproof insulating member 4 above the circuit board 2, so that the plug-in portion 23 on the circuit board 2 passes through the hollow portion 41 of the fireproof insulating member 4, and align the second connecting hole 42 with the first connecting hole 24;

[0112] Step 4: Connect the multiple connectors 5 to the multiple connector seats 18 to fix the fireproof insulating member 4 and the circuit board 2;

[0113] Step 5: Insert the wire harness 7 into the installation space of the wire harness 7 formed by the plug 22 and the terminal 32, tighten the terminal 31, and press the wire harness 7 through the second plate 322 and the plug 22; complete the installation of all wire harnesses 7 in sequence.

[0114] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0115] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0116] The above description is only a specific implementation of the present application, so that those skilled in the art can 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 can 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 will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A rear housing (1), characterized in that: include: A housing (11), the housing (11) comprising a mounting cavity (111) for accommodating a circuit board (2); A plurality of terminal accommodating cavities (12) are arranged side by side, and the installation cavity (111) is in communication with the plurality of terminal accommodating cavities (12); an insulating partition (13) is provided between two adjacent terminal accommodating cavities (12), and the insulating partition (13) has an extension section (131) facing the circuit board (2), and the extension section (131) is used to achieve arc isolation between two adjacent terminal accommodating cavities (12).

2. The rear housing (1) according to claim 1, characterized in that: The extension section (131) is plugged into or abutted against the circuit board (2).

3. The rear housing (1) according to claim 1, characterized in that: The insulating separator (13) is a plate-shaped structure, and the plate-shaped structure and the side wall of the terminal accommodating cavity (12) are an integrated structure.

4. The back shell (1) according to any one of claims 1 to 3, characterized in that: The housing (11) further comprises an edge portion (112), wherein the edge portion (112) is located at the outer periphery of the installation cavity (111); A connecting structure (14) is provided on the edge portion (112), and the connecting structure (14) is used to be connected to the front housing assembly (6).

5. The rear housing (1) according to claim 4, characterized in that: The connection structure (14) comprises a plurality of clamping portions, the plurality of clamping portions being arranged circumferentially along the edge portion (112), and the plurality of clamping portions being arranged alternately on both sides of the shell (11) in the diagonal direction of the shell (11).

6. The rear housing (1) according to claim 4, characterized in that: A positioning structure (15) is also provided on the edge portion (112), and the positioning structure (15) is matched with the front shell assembly (6).

7. The rear housing (1) according to claim 4, characterized in that: A mounting seat (16) is also provided on the edge portion (112), and the mounting seat (16) has a recessed structure, wherein the recessed structure is recessed toward a side of the edge portion (112) away from the front housing assembly (6).

8. The back housing (1) according to any one of claims 1 to 3, characterized in that: A heat dissipation structure (17) is provided on the side wall of the installation cavity (111).

9. A rear housing assembly, characterized in that: It comprises a rear shell (1) as claimed in any one of claims 1 to 8, and also comprises a circuit board (2), wherein a plurality of matching parts (21) are provided on the circuit board (2), and the plurality of matching parts (21) are arranged in a one-to-one correspondence with the plurality of extension sections (131).

10. The rear housing assembly according to claim 9, characterized in that: The matching portion (21) is a plug-in slot provided on the circuit board (2).

11. The rear housing assembly according to claim 9, characterized in that: It also comprises a plurality of terminal assemblies (3), wherein the plurality of terminal assemblies (3) are arranged in a one-to-one correspondence in the plurality of terminal accommodating cavities (12); The terminal assembly (3) comprises a terminal (31) and a terminal (32), wherein the terminal (31) is movably connected to the terminal (32), and the circuit board (2) has a plurality of plug-ins (22), wherein the plurality of plug-ins (22) and the plurality of terminal (32) are arranged in a one-to-one correspondence, and the inner walls of the plug-ins (22) and the terminal (32) enclose an installation space for the wiring harness (7).

12. The rear housing assembly according to claim 11, characterized in that: The inserting piece (22) and the connecting terminal (32) are both provided with a rough structure.

13. The rear housing assembly according to any one of claims 9 to 12, characterized in that: It also includes a fireproof insulating member (4), which is stacked with the circuit board (2) and is located on the side of the circuit board (2) facing the front housing assembly (6).

14. The rear housing assembly according to claim 13, characterized in that: The circuit board (2) is provided with a plug-in portion (23) on a side facing the front shell assembly (6), and the plug-in portion (23) is used to achieve signal connection with the front shell assembly (6), and the fireproof insulating component (4) is provided with a hollow portion (41) matching the plug-in portion (23).

15. The rear housing assembly according to claim 13, characterized in that: A plurality of connection seats (18) are provided inside the installation cavity (111), a plurality of connection holes are provided on the circuit board (2) and the fireproof insulating member (4), and a connection member (5) matching the connection holes is provided in the connection seat (18) for realizing the connection between the connection seat (18), the circuit board (2) and the fireproof insulating member (4).

16. The rear housing assembly according to claim 15, characterized in that: The connection seat (18) comprises a column (181) and a reinforcing rib structure (182); a threaded hole (183) and an explosion-proof sink (184) are provided in the middle of the column (181); the explosion-proof sink (184) is located at one end of the threaded hole (183) close to the circuit board (2); and the reinforcing rib structure (182) is connected between the column (181) and the inner wall of the installation cavity (111).

17. A central control switch, characterized in that: It comprises the rear shell assembly as claimed in any one of claims 9 to 16, and also comprises a front shell assembly (6), wherein the front shell assembly (6) is detachably connected to the rear shell assembly.

18. A whole-house intelligent system, characterized in that: Includes the central control switch as described in claim 17.

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