Range hood with semi-sunken controller box

Abstract

The utility model discloses a range hood with a semi-sunken controller box. The range hood comprises a shell, a volute fan arranged in the shell and the controller box arranged on the shell, the shell comprises a cylindrical body, a top plate arranged at the upper part of the cylindrical body and a bottom plate arranged at the lower part of the cylindrical body, a mounting hole is further formed in the top plate, the controller box is arranged in the mounting hole in a penetrating manner, the upper half part of the controller box is positioned above the mounting hole, and the lower half part of the controller box is positioned below the mounting hole. Compared with the prior art, the range hood with the semi-sunken controller box provided by the utility model has the advantages that the middle part of the controller box is connected with the mounting hole, so that the range hood is firmer compared with a fixing mode that only the bottom of the lower cover is connected with the top plate in the prior art; meanwhile, the sunken lower half part of the controller box can fill a part of space between the volute part of the volute fan and the top plate, and the situation that a gap between the volute part of the volute fan and the top plate is too large, consequently, airflow turbulence is caused, and starting noise is generated is avoided.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a range hood with a semi-recessed controller box. Background Technology

[0002] A typical top-mounted range hood includes a decorative hood, a smoke collection hood located below the decorative hood, and a volute fan inside the decorative hood. The decorative hood has a top plate with an opening that connects to the exhaust port of the volute fan. A smoke guide chamber is formed below the top plate, where fumes are drawn in by the inlet of the volute fan and exhausted through the outlet. According to aerodynamic models, the volute fan inside the decorative hood cannot be too close to or too far from the smoke inlet at the bottom of the hood; therefore, the height of the decorative hood is generally fixed. The controller box of this type of range hood is usually located on the top plate, occupying a large space. Both the top plate and the controller box require separate installation and wiring, resulting in complex assembly processes. Each requires independent molds, increasing production costs and assembly time. Furthermore, the large gap between the controller box and the top plate causes airflow turbulence and generates startup noise. Some designs install the controller box below the top plate, which requires the outlet of the volute fan to be lengthened to avoid interference between the controller box and the volute. This makes assembly cumbersome, increases production costs, and is not conducive to later maintenance. Furthermore, if the gap between the volute and the top plate is not properly designed, it will interfere with the airflow path and easily generate noise.

[0003] For example, Chinese Patent No. 222378189U discloses a range hood, wherein a fan cabinet (200) is installed on the top of the smoke collection hood (100), and the fan cabinet (200) is connected to the smoke inlet area (111); an electrical box (220) is installed on the top of the fan cabinet (200); a wire hole (161) is provided on the partition plate (160) located on the side of the smoke inlet area (111) near the wiring box (150); a sealing sleeve (162) is provided in the wire hole (161); a wire conduit is provided in the smoke inlet area (111); one end of the wire conduit is connected to the wire hole (161), and the other end extends upward to connect to the electrical box (220). While the aforementioned solution incorporates an upwardly curved plate at the top of the substrate to guide fumes to the fan, its structure is complex and production costs are high. Both the substrate and the curved plate are fixed to the rear wall panel by the third and fourth side plates, requiring the cutting of matching curved plates on these side plates, resulting in significant processing and material costs. Therefore, there is an urgent need for a semi-recessed controller box structure that simplifies assembly, reduces costs, improves airflow, and reduces noise by physically filling gaps. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a range hood with a semi-recessed controller box.

[0005] The main technical solution of the semi-submerged range hood with controller box provided by this utility model is as follows: it includes a housing, a smoke collection hood at the bottom of the housing, a volute fan inside the housing, and a controller box on the housing; the housing includes a cylindrical body, a top plate at the top of the cylindrical body and a bottom plate at the bottom of the cylindrical body, the volute fan is located between the top plate and the bottom plate, the top plate has an exhaust port communicating with the volute fan, the bottom plate has an air inlet communicating with the smoke collection hood, and the top plate also has a mounting hole, the controller box is inserted into the mounting hole, the upper half of the controller box is located above the mounting hole, and the lower half of the controller box is located below the mounting hole.

[0006] The semi-recessed range hood with controller box provided by this utility model also adopts the following auxiliary technical solutions:

[0007] Preferably, the controller box includes an upper cover and a lower cover disposed opposite to each other, and a circuit board located in the lower cover; after the bottom of the lower cover passes through the mounting hole, the upper edge of the lower cover is fixedly connected to the edge of the mounting hole, and the upper cover is pressed on top of the mounting hole and fixedly connected to the top plate.

[0008] Preferably, the upper edge of the lower cover is snapped into place with the mounting hole.

[0009] Preferably, the opening of the lower cover is provided with an outwardly extending flange, and a locking block connected to the side wall of the lower cover is provided below the flange. The locking block is provided with a guide slope, and a locking gap is formed between the locking block and the flange. The locking gap engages with the inner edge of the mounting hole.

[0010] Preferably, the opening of the top cover is provided with an outwardly extending connecting part, which is fixedly connected to the top plate.

[0011] Preferably, the top plate is also provided with a wire passage hole, which is located next to the mounting hole. The top cover covers the wire passage hole, and the wire passage hole communicates with the inside of the controller box.

[0012] Preferably, it also includes a control line connected to the circuit board. The control line extends from the lower cover to the upper cover, then bends downward and enters the housing through a wire hole. The lower cover is located within the longitudinal projection of the upper cover.

[0013] Preferably, the top plate has a recessed portion, the mounting hole is located inside the recessed portion, and after the lower cover is engaged with the mounting hole, the flange is located inside the recessed portion.

[0014] Preferably, the lower cover is made by injection molding, and the upper cover is made by stamping a metal sheet.

[0015] Preferably, the distance between the highest point of the controller box and the top plate, the distance between the bottom of the controller box and the top plate, and the height of the controller box satisfy the following relationship: h>a+b,b <a,

[0016] Where a refers to the distance between the highest point of the controller box and the top plate, b refers to the distance between the bottom of the controller box and the top plate, h refers to the height of the controller box, and the distance from the highest point of the volute to the bottom of the controller box is d∈[80mm,100mm].

[0017] Compared with the prior art, the semi-recessed range hood with controller box provided by this utility model has the following advantages: First, compared with the prior art where the controller box is located above the top plate, this utility model can hide the controller box more completely in the horizontal direction without increasing the height of the casing, avoiding impact and damage to the controller box during transportation and installation; secondly, the middle part of the controller box in this solution is connected to the mounting hole, which is more reliable than the prior art where only the bottom of the lower cover is connected to the top plate; thirdly, the lower half of the recessed controller box can fill part of the space between the volute part of the volute fan and the top plate, avoiding the volute part of the volute fan from being directly exposed to the top plate. The gap between the controller box and the top plate is too large, causing airflow turbulence and generating startup noise. Secondly, compared with the existing technology where the controller box is located below the top plate, this invention does not require lengthening the length of the volute air outlet (in the case where the controller box is located below the top plate, if the length of the volute air outlet is not increased, the bottom of the controller box is likely to contact the top of the volute), thus saving production costs. Moreover, the gap between the controller box and the top plate in the above-mentioned technology needs to be controlled precisely to avoid interfering with the airflow path and generating noise, so its manufacturing process is more difficult. Finally, compared with the above-mentioned technical solutions, the controller box in this invention has a better heat dissipation effect because the upper part is located above the top plate, ensuring the reliability and stability of the product. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the top plate, controller box, and volute fan assembled in the housing of this utility model.

[0019] Figure 2 This is a structural diagram of the controller box after removing the top cover and assembling it with the housing in this utility model.

[0020] Figure 3 This is a structural diagram of the lower cover of the controller box in this utility model.

[0021] Figure 4 This is a structural diagram of the top plate in this utility model.

[0022] Figure 5 This is a cross-sectional view of the housing in this utility model.

[0023] Figure 6 for Figure 5 A magnified view of A in the middle.

[0024] Figure 7This is a structural diagram of the present invention. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] See Figures 1 to 7 According to the embodiment of the semi-recessed range hood with controller box provided by the utility model, it includes a housing 1, a smoke collection hood 2 located at the bottom of the housing 1, a volute fan 3 located inside the housing 1, and a controller box 4 located on the housing 1. The housing 1 includes a cylindrical body 11, a top plate 12 located at the top of the cylindrical body 11, and a bottom plate 13 located at the bottom of the cylindrical body 11. The volute fan 3 is located between the top plate 12 and the bottom plate 13. The top plate 12 is provided with an exhaust port communicating with the volute fan 3, and the bottom plate 13 is provided with an air inlet communicating with the smoke collection hood 2. The cylindrical structure includes a front panel, a left side panel, a right side panel, and a rear side panel that are surrounded together. The front panel, the left side panel, and the right side panel are integrally formed. The top plate 12 is also provided with a mounting hole 121. The controller box 4 is inserted through the mounting hole 121. The upper half of the controller box 4 is located above the mounting hole 121, and the lower half of the controller box 4 is located below the mounting hole 121. First, compared with the prior art where the controller box 4 is located above the top plate 12, this invention allows the controller box 4 to be more fully concealed within the housing 1 horizontally without increasing the height of the housing 1, thus preventing impact and damage to the controller box 4 during transportation and installation. Furthermore, the connection between the middle of the controller box 4 and the mounting hole 121 in this design is more secure than the prior art where only the bottom of the lower cover 42 is connected to the top plate 12. Simultaneously, the lower half of the recessed controller box 4 can fill part of the space between the volute portion of the volute fan 3 and the top plate 12, preventing excessive gaps between the volute portion of the volute fan 3 and the top plate 12, which could lead to turbulent airflow. Firstly, it generates startup noise. Secondly, compared with the prior art where the controller box 4 is located below the top plate 12, this invention does not require lengthening the length of the volute air outlet (in the case where the controller box 4 is located below the top plate 12, if the length of the volute air outlet is not increased, the bottom of the controller box 4 is likely to contact the top of the volute), thus saving production costs. Moreover, in the prior art, the gap between the controller box 4 and the top plate 12 needs to be controlled precisely to avoid interfering with the airflow path and generating noise, thus making its manufacturing process more difficult. Finally, compared with the above-mentioned technical solutions, the controller box 4 in this invention has a better heat dissipation effect because its upper part is located above the top plate 12, ensuring the reliability and stability of the product.

[0027] See Figures 1 to 6According to the above-described embodiment of the utility model, the controller box 4 includes an upper cover 41 and a lower cover 42 disposed opposite to each other, and a circuit board 43 located in the lower cover 42; after the bottom of the lower cover 42 passes through the mounting hole 121, the upper edge of the lower cover 42 is fixedly connected to the edge of the mounting hole 121, and the upper cover 41 is pressed onto the mounting hole 121 and fixedly connected to the top plate 12. The controller box 4 in this solution has a simple structure and is easy to manufacture and assemble; the upper cover 41 and the lower cover 42 are fixedly connected to the top plate 12 respectively, making the fixing of the controller box 4 more secure and reliable.

[0028] See Figures 2 to 6 According to the above-described embodiment of the utility model, the upper edge of the lower cover 42 is snapped into and fixed to the mounting hole 121. The lower cover 42 and the mounting hole 121 are fixed using the aforementioned snap-fit ​​method, which is convenient to assemble and low in cost.

[0029] See Figures 2 to 6 According to the above-described embodiment of the utility model, the opening of the lower cover 42 is provided with an outwardly extending flange 421. Below the flange 421, there is a locking block 422 connected to the side wall of the lower cover 42. The locking block 422 is provided with a guide slope. A locking gap 423 is formed between the locking block 422 and the flange 421. The locking gap 423 engages with the inner edge of the mounting hole 121. The inner edge of the mounting hole 121 is engaged in the locking gap 423. The flange 421 is located at the upper edge of the mounting hole 121, and the locking block 422 is located at the lower edge of the mounting hole 121. During installation, align the bottom of the lower cover 42 with the mounting hole 121 and press it down. The guide bevel on the locking block 422 contacts the inner edge of the mounting hole 121, and pressing continues until the side wall of the lower cover 42 slightly deforms. This continues until the locking block 422 completely passes through the mounting hole 121, at which point the side wall of the lower cover 42 returns to its pre-deformation state. At this point, the inner edge of the mounting hole 121 is engaged in the engagement gap between the flange 421 and the locking block 422. The lower cover 42 has a longitudinally projected square structure. Three sides of the lower cover 42 are equipped with locking blocks 422, and three edges of the lower cover 42 engage with the mounting hole 121. The flange on the remaining edge is fixedly connected to the top plate 12 with screws. The upper cover 41 adopts the above-mentioned engagement structure, which is convenient to process, easy to assemble, and has low production costs.

[0030] See Figure 4 According to the above-described embodiment of the utility model, the upper cover 41 has an outwardly extending connecting portion 411 at its opening, and the connecting portion 411 is fixedly connected to the top plate 12. The connecting portion 411 is fixedly connected to the top plate 12 by screws, which is convenient to assemble and securely fixed.

[0031] See Figures 2 to 6, according to the above embodiments of the utility model, a wire passing hole 123 is further provided on the top plate 12. The wire passing hole 123 is located beside the mounting hole 121. The upper cover 41 covers the wire passing hole 123, and the wire passing hole 123 is internally connected to the controller box 4. It further includes a control wire (not shown in the figure) connected to the circuit board 43. After the control wire extends from the lower cover 42 to the upper cover 41, it bends downward and enters the housing 1 through the wire passing hole 123; the lower cover 42 is located within the longitudinal projection of the upper cover 41. The longitudinal projection area of the upper cover 41 is larger than the longitudinal projection area of the lower cover 42. This structure can protect the control wire in the upper cover 41 without being exposed, extending the service life of the control wire. The above structure sets the wire passing hole 123 on the controller box 4 on the top plate 12, effectively integrating the controller box 4 with the top plate 12, simplifying the structure of the controller box 4, and improving the reliability between the controller box 4 and the top plate 12.

[0032] See Figure 6 , according to the above embodiments of the utility model, the distance between the highest point above the controller box 4 and the top plate 12, the distance between the bottom of the controller box 4 and the top plate 12, and the height of the controller box 4 satisfy the following relationship: h > a + b, b < a; where a refers to the distance between the highest point above the controller box 4 and the top plate 12, b refers to the distance between the bottom of the controller box 4 and the top plate 12, h refers to the height of the controller box 4, and the distance d from the highest point of the volute to the bottom of the controller box 4 ∈ [80mm, 100mm]. The utility model ingeniously utilizes the thickness of the top plate 12 itself. Without increasing the heights of the upper cover 41 and the lower cover 42 of the controller box 4, the internal height of the controller box 4 is increased, which helps to improve the installation and layout of the electronic components inside the controller box 4 and is also beneficial to the heat dissipation of the device.

[0033] See Figure 4 and Figure 6 , according to the above embodiments of the utility model, a sunken part 122 is provided on the top plate 12. The mounting hole 121 is located within the sunken part 122. After the lower cover 42 is snap - connected to the mounting hole 121, the flanging 421 is located within the sunken part 122. The depth of the sunken part 122 is greater than the thickness of the flanging 421. Setting the sunken part 122 on the top plate 12 can increase the internal height of the controller box 4 without increasing the heights of the upper cover 41 and the lower cover 42 of the controller box 4, effectively utilizing the structural advantage of the middle part of the top plate 12. Secondly, the setting of the sunken part 122 can improve the mechanical strength of this part of the top plate 12 and avoid generating noise due to vibration.

[0034] See Figures 1 to 6According to the above-described embodiments of the utility model, the lower cover 42 is manufactured by injection molding, and the upper cover 41 is manufactured by stamping a metal sheet. The upper cover 41 is made of metal, which has good heat dissipation performance and high strength, and can prevent damage to internal electronic components from minor bumps; the lower cover 42 is made of plastic, which has good sealing performance and a certain degree of deformation capability when it is snapped into the metal top plate 12, making it easy to install. After the plastic lower cover 42 comes into contact with the metal top plate 12, it will not generate noise even if vibration occurs.

[0035] The technical solution provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A semi-recessed range hood with a controller box, comprising a housing, a smoke collection hood at the bottom of the housing, a volute fan inside the housing, and a controller box on the housing; the housing includes a cylindrical body, a top plate at the upper part of the cylindrical body, and a bottom plate at the lower part of the cylindrical body, the volute fan being located between the top plate and the bottom plate, the top plate having an exhaust port communicating with the volute fan, and the bottom plate having an air inlet communicating with the smoke collection hood, characterized in that: The top plate also has mounting holes, through which the controller box is installed. The upper half of the controller box is located above the mounting holes, and the lower half of the controller box is located below the mounting holes.

2. The semi-recessed range hood with controller box according to claim 1, characterized in that: The controller box includes an upper cover and a lower cover arranged opposite each other, and a circuit board located in the lower cover; after the bottom of the lower cover passes through the mounting hole, the upper edge of the lower cover is fixedly connected to the edge of the mounting hole, and the upper cover is pressed on top of the mounting hole and fixedly connected to the top plate.

3. The semi-recessed range hood with controller box according to claim 2, characterized in that: The upper edge of the lower cover is snapped into place with the mounting hole.

4. The semi-recessed range hood with controller box according to claim 2, characterized in that: The opening of the lower cover has an outwardly extending flange, and below the flange is a locking block that connects to the side wall of the lower cover. The locking block has a guide slope, and a locking gap is formed between the locking block and the flange. The locking gap engages with the inner edge of the mounting hole.

5. The semi-recessed range hood with controller box according to claim 2, characterized in that: The top cover opening has an outwardly extending connecting part, which is fixedly connected to the top plate.

6. The semi-recessed range hood with controller box according to claim 2, characterized in that: The top plate is also equipped with a wire passage hole, which is located next to the mounting hole. The top cover covers the wire passage hole, and the wire passage hole is connected to the inside of the controller box.

7. The semi-recessed range hood with controller box according to claim 2, characterized in that: It also includes control lines connected to the circuit board. The control lines extend from the lower cover to the upper cover, then bend downwards and enter the housing through the wire hole; the lower cover is located within the longitudinal projection of the upper cover.

8. The semi-recessed range hood with controller box according to claim 4, characterized in that: The top plate has a recessed section, and the mounting hole is located inside the recessed section. After the lower cover is engaged with the mounting hole, the flange is located inside the recessed section.

9. The semi-recessed range hood with controller box according to claim 2, characterized in that: The lower cover is made by injection molding, while the upper cover is made by stamping metal sheet.

10. The semi-recessed range hood with controller box according to any one of claims 1-9, characterized in that: The distance between the highest point of the controller box and the top plate, the distance between the bottom of the controller box and the top plate, and the height of the controller box satisfy the following relationship: h > a + b, b <a, Where a refers to the distance between the highest point of the controller box and the top plate, b refers to the distance between the bottom of the controller box and the top plate, h refers to the height of the controller box, and the distance from the highest point of the volute to the bottom of the controller box is d∈[80mm,100mm].

Images