An electric control box and a range hood

Abstract

The application belongs to the technical field of electrical appliances, and specifically discloses an electric control box and a range hood. The electric control box comprises a first component and a second component, one of the first component and the second component is a box body, and the other is a cover body. One side of the first component is connected with one side of the second component through a rotating connecting component. The rotating connecting component comprises a rotating shaft and two shaft sleeves which are arranged along the axial direction of the rotating shaft. The rotating shaft is arranged on the first component, and the two ends of the rotating shaft are rotatably inserted into the two shaft sleeves. One of the two shaft sleeves is a movable shaft sleeve which is detachably arranged on the second component along the axial direction. The other opposite side of the first component and the other opposite side of the second component are detachably connected. The electric control box and the range hood disclosed by the application can improve the convenience of opening and closing the cover body and improve the convenience of maintaining and replacing the electrical devices inside the electric control box.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical appliances, and in particular to an electric control box and a range hood. BACKGROUND

[0002] With the improvement of people's living standards, the range hood capable of sucking kitchen fume has become one of the necessary household appliances in household life, which can effectively maintain the kitchen air environment and improve people's living comfort.

[0003] The electric control box is usually arranged on the range hood for controlling the operation of the range hood. For the side suction type range hood, the electric control box is usually installed on the top plate of the smoke hood to facilitate the user to maintain and replace the electrical devices in the electric control box. The electric control box of the existing range hood usually comprises a box body and a cover body, the cover body is connected to the upper end opening of the cover body through screws or a buckle structure, the box body is installed on the top plate of the smoke hood through the mounting hole on the top plate, and the box body is connected to the top plate.

[0004] The electric control box provided by the prior art needs to disassemble the cover body from the box body to open the upper end opening of the box body when the internal electrical control of the electric control box is maintained or replaced. The disassembly of the cover body is separated from the box body, so that the cover body is easy to fall off or be lost after being disassembled. Meanwhile, the cover body needs to be reassembled after the electrical devices in the electric control box are replaced or maintained, which is troublesome and reduces the efficiency of maintaining and replacing the electrical devices. SUMMARY

[0005] One of the technical problems to be solved by the present application is to provide an electric control box which can effectively solve the problem of troublesome maintenance and replacement of electrical devices in the existing electric control box, and improve the efficiency of maintaining and replacing the electrical devices in the electric control box.

[0006] The second technical problem to be solved by the present application is to provide a range hood which can effectively solve the problems of low efficiency and troublesome operation of maintaining and replacing the electric control box of the existing range hood, and improve the efficiency of maintaining and replacing the electrical devices in the electric control box.

[0007] The first technical problem is solved by the following technical scheme:

[0008] The utility model provides an electric control box, including first component and second component, one of first component and second component is box body, and the other is cover, one side of first component is connected with one side of second component through rotating connection component, rotating connection component includes a rotating shaft and two shaft sleeves which are arranged along the axis direction of rotating shaft, rotating shaft is arranged on first component, and both ends of rotating shaft are rotatably inserted into two shaft sleeves respectively, and two shaft sleeves are arranged on second component, one of shaft sleeves is movable shaft sleeve, movable shaft sleeve is detachably installed along the axis direction on second component, and the other opposite side of first component and the other opposite side of second component are detachably connected.

[0009] Compared with the prior art, the electric control box has the beneficial effects that: the electric control box provided by the utility model is connected through the rotating shaft and the shaft sleeve, and the other opposite side of the box body and the cover is detachably connected, so that the cover can be tightly buckled with the box body when the upper opening of the cover is closed, and the use reliability of the electric control box is ensured; when the cover needs to be opened, only one side of the cover needs to be detached and rotated around the axis of the rotating shaft, so that the upper opening of the box body is exposed, the cover does not need to be detached as a whole from the box body, the efficiency of detaching the box body is improved, and the cover is prevented from being lost and falling; when the cover is closed again, the installation and positioning of the box body and the cover are not needed, the assembly efficiency of the cover and the box body is improved; in addition, the movable shaft sleeve can be moved out of the position of the rotating shaft, so that the convenience of inserting the rotating shaft into the other shaft sleeve is improved, the cover can be installed on the box body without deformation of the cover, the installation is more convenient and labor-saving, the cover is easier to detach, and the service life of the cover and the box body is improved.

[0010] In one of the embodiments, the outer side of the second component is provided with a guide rail, the movable shaft sleeve comprises an inserting sleeve part and a sliding part connected to the outer side wall of the inserting sleeve part, a sliding groove is formed through the axial direction of the inserting sleeve part, the guide rail is slidingly inserted into the sliding groove, and one end of the rotating shaft is rotatably inserted into the inserting sleeve part.

[0011] In one of the embodiments, the movable shaft sleeve further comprises a clamping part connected to the outer side wall of the sliding part, a bayonet is formed on the guide rail, and when the rotating shaft is inserted into the movable shaft sleeve, the clamping part is clamped into the bayonet.

[0012] In one of the embodiments, the clamping part comprises an elastic arm, one end of the elastic arm is connected to the outer side wall of the inserting sleeve part, the other end of the elastic arm is connected with a clamping block, and the clamping block is clamped into the bayonet.

[0013] In one of the embodiments, the edges of both ends of the rotating shaft are provided with arc chamfers.

[0014] In one embodiment, the insertion depth of the plug shaft into the bushing is 2 to 5 mm.

[0015] In one embodiment, there are two sets of rotating connection components, which are spaced apart along the axial direction.

[0016] The second technical problem mentioned above is solved by the following technical solution:

[0017] A range hood includes a top cover and an electrical control box as described above. The top cover has an installation opening, the box is inserted into the installation opening and detachably connected to the top cover, and the cover is located above the top cover.

[0018] Compared with the prior art, the range hood described in this invention has the following advantages: by adopting the above-mentioned electrical control box, the range hood provided by this invention can improve the convenience of maintenance and replacement of the control components of the range hood, and improve the efficiency of disassembly, maintenance and replacement.

[0019] In one embodiment, the upper surface of the top plate is recessed with a first groove and a second groove that communicate with each other. The depth of the first groove is less than the depth of the second groove. The mounting opening is opened at the bottom of the first groove, and the rotating shaft is accommodated in the second groove. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the electrical control box provided in Embodiment 1 of the present invention;

[0021] Figure 2 yes Figure 1 A magnified view of a section at point I;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the electrical control box provided in Embodiment 1 of the present invention;

[0023] Figure 4 yes Figure 3 A magnified view of a section at point J;

[0024] Figure 5 This is a schematic diagram of the structure of the movable bushing provided in Embodiment 1 of the present invention;

[0025] Figure 6 This is a schematic diagram of the box structure provided in Embodiment 1 of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the cover provided in Embodiment 1 of the present invention;

[0027] Figure 8This is a schematic diagram of the range hood provided in Embodiment 2 of the present invention when the cover of the control box is in the closed state;

[0028] Figure 9 This is a partial structural diagram of the range hood provided in Embodiment 2 of the present invention when the cover of the control box is in the open state;

[0029] Figure 10 This is a schematic diagram of the disassembled structure of the electrical control box and the top cover provided in Embodiment 2 of the present invention.

[0030] Label Explanation:

[0031] 100. Electrical control box; 200. Smoke hood; 201. Top plate of the hood; 2011. Mounting port; 2012. First groove; 2013. Second groove; 2014. Positioning hole; 2015. Second fixing hole;

[0032] 1. Box body; 11. Box main body; 12. Flange; 13. Ear plate; 131. First fixing hole; 15. Extending ear; 151. Second fastening hole; 16. Positioning post;

[0033] 2. Cover body; 21. Cover body; 211. Cover plate; 2111. Protrusion; 212. Edge; 213. Connecting plate; 2131. First fastening hole; 214. Guide rail; 2141. Guide rib; 2142. Slide plate; 2143. Bayonet; 22. Adapter; 23. Reinforcing rib; 216. Cable routing port;

[0034] 3. Rotary connecting assembly; 31. Rotating shaft; 311. Main shaft part; 312. Insertion shaft part; 3121. Rounded chamfer; 32. Bushing; 32a. Movable bushing; 321. Insertion sleeve part; 322. Sliding part; 323. Slide groove; 3231. First groove part; 3232. Second groove part; 3233. Limiting groove wall; 324. Snap-fit ​​part; 3241. Elastic arm; 3242. Snap block; 32b. Fixed bushing. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] Example 1

[0040] like Figures 1-4 As shown, an embodiment of the present invention provides an electrical control box, which includes a first component and a second component. One of the first component and the second component is a box body 1, and the other is a cover body 2. One side of the first component is connected to one side of the second component through a rotating connection component 3. The rotating connection component 3 includes a rotating shaft 31 and two bushings 32 spaced apart along the axial direction of the rotating shaft 31. The rotating shaft 31 is disposed on the first component, and the two ends of the rotating shaft 31 are respectively rotatably inserted into the two bushings 32. The two bushings 32 are disposed on the second component, wherein one bushing 32 is a movable bushing 32a, which is detachably installed on the second component along the axial direction. The other opposite side of the first component and the other opposite side of the second component are detachably connected.

[0041] The box body 1 and the cover 2 are rotatably connected on one side by a rotating connecting assembly 3, and the other opposite sides of the box body 1 and the cover 2 are detachably connected. This allows the cover 2 to be tightly fastened to the box body 1 when the upper opening is closed, ensuring the reliability of the electrical control box 100. At the same time, when it is necessary to open the cover 2, only one side of the cover 2 needs to be removed, so that the cover 2 can be rotated around the axis of the rotating shaft 31 to expose the upper opening of the box body 1. There is no need to remove the cover 2 from the box body 1 as a whole, which improves the disassembly efficiency of the box body 1 and prevents the cover 2 from being lost or falling off. Furthermore, when closing the cover 2 again, there is no need to install and position the box body 1 and the cover 2, which improves the assembly efficiency of the cover 2 and the box body 1.

[0042] By setting a movable bushing 32a, during the initial assembly, the movable bushing 32a is kept in an active state, allowing the movable bushing 32 to move out of the assembly position. Then, the rotating shaft 31 is inserted between the two bushings 32 and connected to the fixed bushing 14, thus fixing one end of the rotating shaft 31. Subsequently, the movable bushing 32a is moved to the assembly position and connected to the second end of the rotating shaft 31, thus assembling the rotating shaft 31 with the two bushings 32. This improves the efficiency of assembling the rotating shaft 31 with the bushings 32 and avoids deformation of the rotating shaft 31 during assembly or disassembly, thereby preventing the rotating shaft 31 from breaking and increasing the service life of the rotating shaft 31 and bushings 32, thereby increasing the service life of the cover 2 and the box 1.

[0043] In this embodiment, one of the two bushings 32 is a fixed bushing 32b, and the other is a movable bushing 32a. The fixed bushing 32b is fixedly connected to the second component, and the movable bushing 32a is detachably connected to the second component. This simplifies the structure of the rotating connection component 2, reduces the difficulty of connecting the rotating connection component 3 to the second connection component, and improves the assembly efficiency of the cover 2 and the box 1. In other embodiments, both bushings 32 in the same rotating connection component 3 can be movable bushings 32a.

[0044] In this embodiment, taking the first component as the box body 1 and the second component as the cover 2 as an example, the specific structure of the rotating connection component 3 and the assembly structure of the rotating connection component 3 with the box body 1 and the cover 2 are described. However, it is understood that in other embodiments, the first component can be the cover 2 and the second component can be the box body 1, and the installation of the rotating shaft 31 on the cover 2 and the installation of the rotating shaft 32 on the box body 1 can refer to this embodiment. The present invention will not list them one by one.

[0045] In one embodiment, the rotating shaft 31 is further integrally formed with the first component to improve the stability of the rotating shaft 31 on the first component. However, it is understood that the rotating shaft 31 can also be installed on the first component using other connection methods. Preferably, the fixing bushing 32b is integrally formed with the second component to simplify processing and improve the connection stability between the fixing bushing 32b and the cover 2. In other embodiments, the fixing bushing 32b can also be connected to the second component through other connection structures.

[0046] To further improve the ease of connection between the rotating shaft 31 and the bushing 32, the rotating shaft 31 includes a main shaft portion 311 and two insertion shaft portions 312 coaxially connected to both ends of the main shaft portion 311. The outer diameter of the main shaft portion 311 is larger than the outer diameter of the insertion shaft portions 312, and the two insertion shaft portions 312 are rotatably inserted into the two bushings 32 respectively. This arrangement creates a stepped surface between the main shaft portion 311 and the insertion shaft portions 312, which can abut against the end face of the bushing 32 to limit the insertion depth of the movable bushing 32a and the fixed bushing 32b with the rotating shaft 31. Preferably, the end edges of the two insertion shaft portions 312 are provided with rounded chamfers 3121.

[0047] Preferably, when the insert shaft 312 is inserted into the bushing 32, the end face of the bushing 32 abuts against the end face of the main shaft 311, so that the two ends of the main shaft 311 are clamped between the two bushings 32, avoiding the main shaft 311 and the bushing 32 from moving axially in the rotating shaft 31, and improving the assembly reliability of the box body 1 and the cover body 2.

[0048] In other embodiments, the rotating shaft 31 may also be a straight cylindrical shaft with the same outer diameter. In this case, the assembly position of the movable bushing 32a on the second component can be restricted by setting a limiting structure or a positioning structure on the cover 2.

[0049] In one embodiment, the insertion depth of the insert shaft portion 312 into the bushing 32 is preferably 2 to 5 mm, so as to ensure that the insert shaft portion 312 can be stably held in the bushing 32, while avoiding the insert shaft portion 312 being inserted into the bushing 32 too deeply, making it difficult to remove or insert the insert shaft portion 312 into the bushing 32, thereby improving the assembly reliability of the cover 2 and the box 1.

[0050] To further improve the assembly convenience of the rotating shaft 31 and the movable bushing 32a, the movable bushing 32a is slidably connected to the second component, and the movable bushing 32a can slide in a direction toward or away from the fixed bushing 32b to adjust the distance between the movable bushing 32a and the fixed bushing 32b. Thus, when it is necessary to install or remove the rotating shaft 31, the position of the movable bushing 32a can be adjusted so that the distance between the two bushings 32 is greater than the axial length of the rotating shaft 31, thereby facilitating the insertion of the rotating shaft 31 between the two bushings 32 to achieve the insertion of the rotating shaft 31 with the bushing 32. Afterwards, the two bushings 32 can be brought closer to each other so that both ends of the main shaft 311 are inserted into the two bushings 32.

[0051] like Figures 2-5 As shown, to facilitate the installation of the movable bushing 32a, a guide rail 214 protrudes from the outer side of the second component, extending along the axial direction of the rotating shaft 31. The movable bushing 32a includes an insertion sleeve portion 321 and a sliding portion 322 connected to the outer wall of the insertion sleeve portion 321. The sliding portion 322 has a groove 323 formed along the axial direction of the insertion sleeve portion 321, and the guide rail 214 is slidably inserted into the groove 323. The cover 2 includes a cover body 21, a sliding part 322, and a groove 323. These components guide the sliding of the movable sleeve 32a along the cover body 21, ensuring that the movable sleeve 32a remains coaxial with the fixed sleeve 32b during sliding. This improves the ease and reliability of the connection between the movable sleeve 32a and the rotating shaft 31. Simultaneously, the cooperation between the sliding part 322 and the sliding plate part 2142 effectively prevents the movable sleeve 32a from dislodging from the cover body 21 during sliding, ensuring the reliable connection of the movable sleeve 32a to the cover body 21. In other embodiments, the movable sleeve 32a can also be detachably installed with the second component via a threaded connection. Specifically, the second component has an axially arranged screw, and the movable sleeve 32a is a sleeve with a threaded hole at one end for connection to the screw and an insertion hole at the other end for insertion into the rotating shaft 31.

[0052] In one embodiment, the guide rail 214 includes a guide rib 2141 extending vertically outward along the sidewall of the edge portion 212. The guide rib 2141 extends along the axial direction of the bushing 32. A sliding plate portion 2142 is vertically connected to the side of the guide rib 2141 away from the edge portion 212. The sliding plate portion 2142 and the guide rib portion 2141 are connected to form an L-shaped structure. The slide groove 323 is an L-shaped slide groove, and the lateral opening of the L-shaped slide groove 323 faces the second component. This arrangement can effectively prevent the slide groove 323 from dislodging from the guide rail 214, improving the sliding reliability of the movable bushing 32a. In other embodiments, the guide rail 214 can also be of other shapes, as long as the shape of the slide groove 323 matches the shape of the guide rail 214.

[0053] Preferably, the slide groove 323 includes a first groove portion 3231 and a second groove portion 3232. The second groove portion 3232 is located on the side of the first groove portion 3231 facing the cover body 21, and the width of the second groove portion 3232 is smaller than the width of the first groove portion 3231. Both the first groove portion 3231 and the second groove portion 3232 pass through the sliding portion 322 along the axial direction of the insertion sleeve portion 321. The guide rib portion 2141 is slidably inserted into the first groove portion 3231, and the slide plate portion 2142 is slidably inserted into the second groove portion 3232. A limiting groove wall 3233 is formed between the first groove portion 3231 and the second groove portion 3232 to limit the sliding portion 322 from disengaging from the guide rail 214.

[0054] In one embodiment, the fixed bushing 32b is connected to the guide rib portion 2141, and preferably, the fixed bushing 32b is connected to the lower surface of the guide rib portion 2141. Preferably, the guide rib portion 2141 extends to opposite sides of the second component, so that each bushing 32 is mounted on the same guide rib portion 2141, and the sliding plate portion 2142 is correspondingly provided with the movable bushing 32a.

[0055] Preferably, a transition part 22 is connected between the fixed bushing 32b and the guide rib part 2141 so that the fixed bushing 32b and the guide rib part 2141 are spaced apart, that is, the rotating shaft 31 can be spaced apart from the guide rib part 2141 to avoid interference between the rotating shaft 31 and the cover 2 when rotating.

[0056] In one embodiment, when the movable bushing 32a slides to the assembly position, the movable bushing 32a engages with the cover body 21, so that the movable bushing 32a can be stably held in the assembly position. Even if the movable bushing 32a is in a locked state, it prevents the movable bushing 32a from detaching from the cover body 21 when the control box 100 is in normal use. At the same time, the snap-fit ​​connection can improve the ease of disassembly and assembly of the movable bushing 32a and the cover body 21, thereby improving the ease of disassembly of the rotating shaft 31 and the movable bushing 32a.

[0057] To improve the ease of engagement between the movable bushing 32a and the cover body 21, the movable bushing 32a includes a snap-fit ​​part 324, and a snap-fit ​​structure is provided on the guide rail 214, with the snap-fit ​​part 324 engaging with the snap-fit ​​structure. This arrangement concentrates the connection structure between the bushing 32a and the cover body 2 on the guide rail 214, which simplifies the processing of the cover body 2.

[0058] In one embodiment, the snap-fit ​​structure is a snap-fit ​​opening 2143 formed on the guide rib portion 2141, and the snap-fit ​​portion 324 can be snapped into the snap-fit ​​opening 2143. In other embodiments, the snap-fit ​​portion 324 may have a snap-fit ​​opening or a slot, and the snap-fit ​​structure may be a snap-fit ​​arm protruding from the guide rib portion 2141, which snaps into the snap-fit ​​opening 2143 or the slot.

[0059] In one embodiment, the locking portion 324 includes an elastic arm 3241. One end of the elastic arm 3241 is connected to the sliding portion 322, and the other end of the elastic arm 3241 is connected to a locking block 3242, which engages with the slot 2143. The elastic arm 3241 increases the deformability of the locking portion 324, improves the ease of engagement between the locking portion 324 and the slot 2143, reduces the probability of the locking portion 324 breaking, and increases the service life of the locking portion 324.

[0060] Preferably, the elastic arm 3241 is V-shaped, which can enhance the deformation performance of the locking part 324, so that the opposite sides of the elastic arm 3241 can open or close relative to each other, thereby adjusting the position of the locking block 3242 relative to the movable bushing 32a and improving the smoothness of the locking block 3242 inserting into or exiting the locking slot 2143.

[0061] The V-shaped opening of the elastic arm 3241 faces the guide rib 2141, and when the elastic arm 3241 is not deformed by force, the end of the locking block 3242 is lower than the upper surface of the guide rib 2141. Thus, when the sliding part 322 slides relative to the guide rail 214, the locking block 3242 is pressed against the guide rib 2141 by the pressure of the guide rib 2141, and the elastic arm 3241 is deformed by the pressure; when the locking block 3242 slides to be directly above the locking slot 2143, the locking block 3242 extends into the locking slot 2143 under the action of elastic force, thereby restricting the sliding part 322 from continuing to slide; when it is necessary for the locking block 3242 to disengage from the locking slot 2143, the locking block 3242 can be lifted upward to deform the elastic arm 3241, or the movable bushing 32a can be slid away from the fixed bushing 32b to apply a force to the locking block 3242 to deform the elastic arm 3241.

[0062] Preferably, at least two sets of rotating connection components 3 are provided at axial intervals along the rotating shaft 31, so as to reduce the outer diameter of a single insertion shaft 312 while ensuring the reliability of the connection between the box body 1 and the cover body 2, making it easier for the insertion shaft 312 to be inserted into or removed from the bushing 32, and the bushing 32 and the rotating shaft 31 are provided in a one-to-one correspondence.

[0063] In one embodiment, there are two sets of rotating connecting components 3. To facilitate the insertion of the movable bushings 32a into the guide rail 214, preferably, the two movable bushings 32a are located at opposite ends of the guide rail 214, that is, the two fixed bushings 32b are located between the two movable bushings 32a. In other embodiments, the two rotating connecting components 3 may also share a bushing 32 located in the middle.

[0064] like Figure 4 and Figure 6As shown, in one embodiment, the box body 1 includes a box body 11 with an opening at the top, a flange portion 12 extending outward from the edge of the opening at the top of the box body 11, and a rotating shaft 31 connected to the flange portion 12 to improve the ease of installation of the box body 1 on the external structure and to improve the ease of installation of the rotating shaft 31 on the box body 1.

[0065] like Figure 4 and Figure 7 As shown, in one embodiment, the cover body 21 includes a cover plate portion 211 and an edge portion 212 extending downward along the periphery of the cover plate portion 211. The cover plate portion 211 is disposed opposite to the upper opening of the box body 1. A connecting plate portion 213 extends outward from the edge portion 212. The connecting plate portion 213 is parallel to and spaced apart from the cover plate portion 211. The connecting plate portion 213 is directly engaged with the flange portion 12 of the box body 1 to increase the contact area between the cover body 21 and the opening end face of the box body 1, thereby improving the tightness of the cover body 2 and the box body 1 after fastening.

[0066] like Figure 6 and Figure 7 As shown, a first fastening hole 2131 is provided on the connecting plate portion 213 on the side opposite to the bushing 32, and a second fastening hole 151 is provided on the open end face of the box body 1. The box body 1 and the cover body 2 are connected by threaded parts passing through the first fastening hole 2131 and the second fastening hole 151. Preferably, at least two first fastening holes 2131 are provided at intervals along the length direction of the side edge portion 212 to improve the connection reliability. More preferably, the two ends of the side connecting plate portion 213 are respectively provided with first fastening holes 2131, and the box body 11 has concave arc portions at the two corners where the first fastening holes 2131 are located. The openings of the concave arc portions face the first fastening holes 2131 to provide installation space for the installation of threaded parts.

[0067] To facilitate power cord routing, a protrusion 2111 is provided on the rear side of the cover 2, and a cable routing opening 216 is provided on the rear side wall of the protrusion 2111. The cable routing opening 216 is preferably a U-shaped opening with the opening facing downwards. The protrusion 2111 increases the size of the cable routing opening 216, allowing for the routing of power connection cables with a larger outer diameter.

[0068] In one embodiment, the cover 2 further includes a plurality of reinforcing ribs 23 protruding from the lower surface of the cover plate portion 211 to enhance the structural strength and rigidity of the cover 2. The number and arrangement of the reinforcing ribs 23 can be set according to requirements, as long as they do not interfere with the internal structure of the box 1 or the wiring of the power cord. The present invention does not impose any restrictions on this.

[0069] Example 2

[0070] like Figures 8-10As shown in the figure, this embodiment of the invention also provides a range hood, which includes a smoke collection hood 200, a control device, and an exhaust assembly. The smoke collection hood 200 has a smoke collection cavity formed by a top plate 201, two side plates, a back plate, and a bottom plate. The top plate 201 has an exhaust port. The exhaust assembly includes a fan disposed in the smoke collection cavity and an exhaust pipe connected to the exhaust port of the top plate 201. The fan's air inlet is connected to the smoke collection cavity, and the fan's air outlet is connected to the exhaust port. The control device is installed at the smoke collection hood 200 and electrically connected to the fan to control the operation of the fan, so as to exhaust the oil fumes in the smoke collection cavity to the external environment through the exhaust pipe, thereby realizing the extraction of oil fumes.

[0071] The control device includes an electrical control box 100 and a control module disposed within the electrical control box 100. The electrical control box 100 is the same as that in Embodiment 1, and the structure of the electrical control box 100 will not be described in detail in this embodiment.

[0072] In one embodiment, to facilitate the installation of the box body 1 on the top plate 201, the top plate 201 is provided with an installation opening 2011, the box body 11 is inserted into the installation opening 2011, and the flange 12 rests on the upper surface of the top plate 201, thereby ensuring that the box body 1 is suspended and installed at the installation opening 2011.

[0073] To improve the assembly stability of the box body 1 within the mounting opening 2011, the shape of the mounting opening 2011 is adapted to the shape of the upper end of the box body 11, and each side wall of the box body 11 abuts against the edge of the mounting opening 2011. This restricts the displacement of the box body 1 in all horizontal directions by the side walls of the mounting opening 2011, preventing the box body 1 from swaying horizontally relative to the top cover 201, and improving the installation stability of the box body 1 and the top cover 201.

[0074] To improve the connection stability of the box body 1 on the top cover plate 201, the flange portion 12 extends outward to form an ear plate portion 13. At least one ear plate portion 13 is provided on each of the opposite sides of the box body 1, and a first fixing hole 131 is provided on the ear plate portion 13. A second fixing hole 2015 is provided on the top cover plate 201, and the second fixing hole 2015 corresponds to the first fixing hole 131. The box body 1 and the top cover plate 201 are connected by threaded parts passing through the first fixing hole 131 and the second fixing hole 2015. The first fixing hole 131 is preferably a smooth hole, and the second fixing hole 2015 is preferably a threaded hole.

[0075] In one embodiment, a positioning post 16 is provided on the open end face of the box body 1, and a positioning hole 2014 is provided in the top plate 201. The positioning post 16 is inserted into the positioning hole 2014 to achieve the installation and positioning of the box body 1 and the top plate 201. Preferably, at least two positioning posts 16 are provided to prevent the box body 1 from deflecting relative to the top plate 201 and improve assembly reliability. In other embodiments, the positioning post 16 can also be provided on the top plate 201, and the positioning hole 2014 can also be provided on the open end face of the box body 1, as long as it can achieve the positioning of the box body 1 and the top plate 201.

[0076] In one embodiment, the flange portion 12 extends outward to form an extension ear 15, and the extension ear 15 protrudes downward to form a positioning post portion 16. By providing the extension ear 15, the distance between the positioning post portion 16 and the upper opening edge can be increased, thereby increasing the distance between the positioning hole 2014 and the mounting opening 2011 on the top cover plate 201, avoiding excessive stress concentration, and improving the positioning effect.

[0077] The box body 11 has a first side and a second side that are opposite to each other and spaced apart, and two third sides and a fourth side that are opposite to each other and spaced apart. A rotating shaft 31 is connected to the flange portion 12 of the first side, and an extending ear portion 15 is connected to the flange portion 12 of the second side. Both ends of the flange portion 12 of the second side extend outward with extending ear plates 15. At least one of the third side and the fourth side is provided with a fixed ear plate portion 13. This arrangement can disperse the positioning point position and connection point position of the box body 11 and the top cover plate 201, thereby improving the reliability and tightness of the connection between the box body 11 and the top cover plate 201. At the same time, by setting the positioning post portion 16 and the rotating shaft 31 on opposite sides of the box body 11 respectively, it can be avoided that when the cover 2 rotates relative to the box body 1, the rotational torque applied by the cover 2 to the box body 1 will cause the other opposite side of the box body 1 to flip up and tilt, further improving the connection stability of the box body 1 on the top cover plate 201.

[0078] In one embodiment, the top plate 201 is recessed downwards with a first groove 2012. The bottom of the first groove 2012 has the aforementioned mounting opening 2011, positioning hole 2014, and second fixing hole 2015. The mounting opening 2011 is located at the bottom of the first groove 2012. During assembly, the flange portion 12 is located in the first groove 2012 and abuts against the bottom of the first groove 2012. The provision of the first groove 2012 can reduce the height of the electrical control box 100 protruding from the top plate 201, thereby improving the structural compactness.

[0079] The bottom of the first groove 2012 is recessed with a second groove 2013, which is located on one side of the mounting opening 2011. The rotating shaft 31 is accommodated in the second groove 2013. The second groove 2013 provides space for the rotating shaft 31 and the bushing 32, avoids interference between the cover 2 and the top plate 201 when rotating, and improves the reliability of the electrical control box 100 on the top plate 201.

[0080] In one embodiment, the second fastening hole 151 is formed on the extended ear 15 and passes through the positioning post 16. The second fastening hole 151 is a threaded hole. This arrangement can increase the contact area between the threaded part and the wall of the second fastening hole 151 without increasing the overall wall thickness of the box body 1 and the flange 12, thereby improving the connection reliability between the cover 2 and the box body 1. At the same time, setting the second fastening hole 151 at the positioning post 16 can also reduce the columnar structure on the box body 1, simplify the processing, and reduce the weight of the cover 2.

[0081] It is understood that the internal structure of the box 1 of the electrical control box 100 and the installation of the control module 3 inside the box 1 can refer to the existing technology, and the present invention does not limit this.

[0082] In the specific embodiments described above, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the technical features are described. However, as long as the combinations of these technical features are not contradictory, they should be considered within the scope of this specification. The specific embodiments described above only illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. An electrical control box, comprising a first component and a second component, wherein one of the first component and the second component is a box body (1) and the other is a cover body (2), characterized in that, One side of the first component is connected to one side of the second component via a rotating connection component (3). The rotating connection component (3) includes a rotating shaft (31) and two bushings (32) spaced apart along the axial direction of the rotating shaft (31). The rotating shaft (31) is disposed on the first component, and the two ends of the rotating shaft (31) are respectively rotatably inserted into the two bushings (32). The two bushings (32) are disposed on the second component, wherein one of the bushings (32) is a movable bushing (32a). The movable bushing (32a) is detachably installed on the second component along the axial direction. The other opposite side of the first component and the other opposite side of the second component are detachably connected. The second component has a guide rail (214) protruding on its outer side. The guide rail (214) extends along the axial direction. The movable bushing (32a) includes a plug-in sleeve (321) and a sliding part (322) connected to the outer wall of the plug-in sleeve (321). The sliding part (322) has a through groove (323) extending along the axial direction. The groove (323) can be slidably inserted into the guide rail (214). One end of the rotating shaft (31) is rotatably inserted into the plug-in sleeve (321).

2. The electrical control box according to claim 1, characterized in that, The movable bushing (32a) also includes a snap-fit ​​part (324) connected to the outer wall of the sliding part (322). The guide rail (214) has a slot (2143). When the rotating shaft (31) is inserted into the movable bushing (32a), the snap-fit ​​part (324) is engaged in the slot (2143).

3. The electrical control box according to claim 2, characterized in that, The latching part (324) includes an elastic arm (3241), one end of which is connected to the outer wall of the plug sleeve (321), and the other end of which is connected to a latching block (3242), which is engaged in the latching slot (2143).

4. The electrical control box according to any one of claims 1-3, characterized in that, The rotating shaft (31) includes a main shaft (311) and two plug-in shafts (312) coaxially connected to both ends of the main shaft (311). The outer diameter of the main shaft (311) is larger than the outer diameter of the plug-in shafts (312). The two plug-in shafts (312) are respectively rotatably inserted into the two bushings (32).

5. The electrical control box according to claim 4, characterized in that, The end edges of the two said plug shaft portions (312) are provided with rounded chamfers (3121).

6. The electrical control box according to claim 4, characterized in that, The insertion depth of the plug shaft (312) into the bushing (32) is 2~5mm.

7. The electrical control box according to any one of claims 1-3, characterized in that, There are two sets of the rotating connection components (3), and the two sets of rotating connection components (3) are spaced apart along the axis.

8. A range hood, comprising a top cover (201), characterized in that, It also includes an electrical control box as described in any one of claims 1-7, wherein the top plate (201) has an installation port (2011), the box body (1) is inserted into the installation port (2011) and is detachably connected to the top plate (201), and the cover (2) is located above the top plate (201).

9. The range hood according to claim 8, characterized in that, The upper surface of the top plate (201) is recessed with a first groove (2012) and a second groove (2013) that are connected. The groove depth of the first groove (2012) is less than the groove depth of the second groove (2013). The mounting port (2011) is opened at the bottom of the first groove (2012). The rotating shaft (31) is housed in the second groove (2013).

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