Motor cover, range hood head and integrated cooker

Abstract

The utility model belongs to the technical field of electric appliances, and particularly discloses a motor cover, a range hood head and an integrated cooker. A rod avoiding hole is formed in the front side of the upper end of the motor cover and used for allowing a driving rod of the push rod motor to penetrate through, and the width of the lower end of the motor cover in the left-right direction is gradually reduced from top to bottom so as to guide smoke on the two sides of the motor cover to flow below the motor cover. The range hood head comprises a head frame, a smoke guide plate assembly, a motor cover and a turning plate mechanism, an oil-proof cavity is defined by the motor cover and the rear side cavity wall of the smoke gathering cavity, and the lower end of the motor cover is located on the rear side of the smoke guide plate assembly; the turning plate mechanism comprises a turning plate assembly and a push rod motor, the push rod motor is installed in the oil-proof cavity, and a driving rod of the push rod motor extends out of the oil-proof cavity through the rod receding hole and is connected with the turning plate assembly. According to the motor cover, the range hood head and the integrated cooker, the influence of the arrangement of the motor cover on oil smoke exhaust can be reduced, and the oil smoke exhaust effect of the range hood head and the integrated cooker is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a motor cover, a range hood head and an integrated stove. Background Art

[0002] An integrated stove is a common kitchen appliance that combines cooking, fume extraction and other functions. It integrates multiple kitchen appliances to reduce the space occupied by kitchen appliances and improve the convenience of setting up and using kitchen appliances.

[0003] The integrated stove has a hood head for extracting oil smoke. In order to improve the aesthetics, cleaning convenience and smoke collection effect of the integrated stove, the prior art provides an integrated stove, on which the hood head is provided with a flap and a push rod motor. The upper end of the flap is hinged to the body of the hood head. The push rod motor is arranged inside the body and its push rod is hinged to the flap to push the flap to open or close the smoke inlet. In order to protect the push rod motor from oil, a motor cover is provided on the outer cover of the push rod motor.

[0004] In the range hood head provided by the prior art, although the motor cover can protect the push rod motor, the width of the range hood head in the front-to-back direction is limited, and the internal space of the motor cover needs to meet the needs of the push rod motor movement. Therefore, the motor cover occupies a large space inside the body, resulting in a large increase in the smoke flow resistance caused by the setting of the motor cover. At the same time, in order to meet the force stability of the flap, the push rod motor is usually set in the center, thereby making the motor cover set in the center. When the oil fume is extracted, the oil fume mainly flows downward through the space on the left and right sides of the motor cover to the fan inside the integrated stove, resulting in a more dispersed airflow, affecting the effect of the fan on the oil fume extraction, reducing the oil fume extraction capacity of the integrated stove, and affecting the user experience of the integrated stove. Utility Model Content

[0005] One purpose of the utility model is to provide a motor cover, which can reduce the increase in the oil fume exhaust resistance caused by the setting of the motor cover and improve the use performance of the motor cover.

[0006] Another object of the utility model is to provide a hood head, which can reduce the influence of the setting of the motor cover on the oil fume extraction capacity of the hood head and improve the use performance of the hood head;

[0007] Another object of the utility model is to provide an integrated stove, which can reduce the influence of the setting of the motor cover on the oil fume exhaust effect and improve the smoke exhaust performance of the integrated stove.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A motor cover is used to cover the outside of a push rod motor. A rod avoidance hole is opened on the front side of the upper end of the motor cover. The rod avoidance hole is used to pass the driving rod of the push rod motor. The width of the lower end of the motor cover in the left and right directions is gradually reduced from top to bottom to guide the smoke on both sides of the motor cover to flow below the motor cover.

[0010] As an optional technical solution for a motor cover, the motor cover has two cover side panels arranged opposite to each other on the left and right, and a cover front plate connected between the front sides of the two cover side panels. The lower end of each cover side panel has a side guide surface. The distance between the two side guide surfaces gradually decreases from top to bottom so that the width of the lower end of the motor cover is gradually reduced. A rod avoidance hole is opened at the upper end of the cover front plate.

[0011] As an optional technical solution for a motor cover, the distance between the upper ends of the two cover side plates is D1, and the distance between the lower ends of the two side guide surfaces is D2, where D2 = 0.75D1 to 0.95D1.

[0012] As an optional technical solution for a motor cover, the front side of the motor cover has a rear concave surface that is recessed backwards and a front convex surface that is protruding forwards. The front convex surface is smoothly connected to the lower side of the rear concave surface. The rear concave surface is recessed backwards to form a drainage groove that runs through the left and right sides, and the front convex surface is connected between the two side guide surfaces.

[0013] As an optional technical solution for the motor cover, the front side of the motor cover has a front guide surface connected to the lower side of the front convex surface, the front guide surface extends backward from top to bottom, and the front guide surface is connected between the two side guide surfaces;

[0014] And / or, the front side of the motor cover has a front guide surface, the front guide surface extends backward from top to bottom in an inclined manner, and the lower end of the front guide surface is smoothly connected to the upper end of the rear concave surface.

[0015] As an optional technical solution for the motor cover, the cover side plate has a main side surface connected to the upper side of the side guide surface, a fixed edge portion is extended backward from the rear end of the main side surface, and a fixed through hole is opened at the lower end of the fixed edge portion;

[0016] And / or, a clamping structure is provided at the top end of the cover side plate and / or the top end of the cover front plate, and the clamping structure is used to clamp with the mechanism frame of the range hood head.

[0017] A range hood head, comprising:

[0018] The machine head frame has a smoke collecting cavity with an open front side;

[0019] The smoke guide plate assembly is installed on the front side of the machine head frame and closes the lower opening of the smoke collecting chamber, and a smoking port is formed between the upper end of the smoke guide plate assembly and the top of the machine head frame;

[0020] The motor cover as above is located in the smoke collecting chamber and is surrounded by the chamber wall of the smoke collecting chamber to form an oil-proof chamber. The lower end of the motor cover is located at the rear side of the smoke guide plate assembly, and the motor cover is located in the middle of the machine head frame in the left-right direction.

[0021] The flap mechanism includes a flap assembly and a push rod motor. The push rod motor is installed in the oil-proof cavity, and the driving rod of the push rod motor extends out of the oil-proof cavity through the rod avoidance hole and is connected to the flap assembly. The push rod motor drives the flap assembly to close or open the smoking port.

[0022] As an optional technical solution for a smoke machine head, the front side of the lower end of the motor cover and the rear side of the smoke guide plate assembly are spaced apart to form a flow gap.

[0023] As an optional technical solution for a smoke machine head, the front side of the motor cover is recessed backward to form a drainage groove, the drainage groove is arranged through the left and right sides, and the drainage groove is arranged directly opposite to the upper end of the smoke guide plate assembly;

[0024] And / or, the minimum width of the flow gap in the front-rear direction is 8 mm to 20 mm.

[0025] As an optional technical solution for a range hood, the head frame has a top plate portion that forms the top wall of the smoke collecting chamber, the upper end of the motor cover abuts against the top plate portion, and the top plate portion extends backwards at an angle from top to bottom.

[0026] An integrated stove comprises the range hood head as above.

[0027] The beneficial effects of the utility model are:

[0028] The motor hood provided by the utility model reduces the width of the lower end of the motor hood in the left-right direction, so that guide surface structures are formed on both sides of the lower end of the motor hood, which can guide the smoke on the left and right sides of the motor hood to flow below the motor hood; when the range hood head including the motor hood is installed in the integrated stove, the motor hood is centrally arranged, and the fan inside the integrated stove is usually arranged below the motor hood, thereby better guiding the smoke to flow toward the air inlet of the fan, reducing the influence of the setting of the motor hood on the oil fume extraction resistance, improving the flow smoothness of the smoke in the smoke collection chamber, reducing the noise generated when the smoke flows, and thus improving the oil fume extraction effect.

[0029] The hood head provided by the utility model, by adopting the above-mentioned motor cover, can guide the smoke to flow from the two sides of the motor cover to the bottom of the motor cover, thereby improving the oil fume extraction effect of the fan inside the integrated stove, reducing the influence of the setting of the motor cover on the oil fume extraction resistance, reducing the noise when the oil fume flows, improving the oil fume extraction effect of the hood head, and improving the user experience of the hood head.

[0030] The integrated stove provided by the utility model can improve the oil fume extraction effect of the integrated stove, reduce the noise during the operation of the integrated stove, and improve the user experience of the integrated stove by adopting the above-mentioned range hood head. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the range hood head provided by the embodiment of the utility model when the flap assembly is in a closed state;

[0032] Figure 2 It is a schematic structural diagram of the range hood head provided by the embodiment of the utility model when the flap assembly is in an open state;

[0033] Figure 3 This is a schematic diagram of the structure of the range hood provided by the embodiment of the utility model after the motor cover and the smoke guide plate assembly are removed;

[0034] Figure 4 This is a schematic diagram of the structure of the hood provided by the embodiment of the utility model after the smoke guide plate assembly is removed;

[0035] Figure 5 It is a front view of the range hood head provided by the embodiment of the utility model;

[0036] Figure 6 This is a schematic diagram of smoke flow of an integrated stove provided by an embodiment of the utility model;

[0037] Figure 7 It is a cross-sectional view of a range hood head provided by an embodiment of the utility model;

[0038] Figure 8 It is a structural schematic diagram of a motor cover provided by an embodiment of the utility model;

[0039] Fig. 9 It is a partial structural cross-sectional view of the machine head frame and the motor cover provided by the embodiment of the utility model;

[0040] Fig.10 yes Fig. 9 A partial enlarged view of point I in the middle.

[0041] The reference numerals in the figures are as follows:

[0042] 1. Head frame; 11. Top beam; 111. Top plate; 1111. Top groove; 1112. Bayonet; 1113. Threading hole; 1114. Top press type; 1115. Bayonet flange; 112. Round beam; 12. Back plate; 13. Side frame; 14. Bottom frame assembly; 141. Smoke outlet; 15. Reinforcement beam; 16. Smoke collecting chamber;

[0043] 2. Flap assembly;

[0044] 3. Push rod motor; 31. Motor body; 311. Telescopic component; 312. Main component; 32. Driving rod;

[0045] 4. Motor cover; 41. Cover front plate; 411. Front convex surface; 412. Rear concave surface; 413. Front flow guide surface; 414. Front flow guide surface; 415. Front top plane; 416. Top arc surface; 417. Rod avoidance hole; 418. Drainage groove; 419. Avoidance groove; 42. Cover side plate; 421. Main side surface; 422. Side flow guide surface; 43. Card plate portion; 44. Top folding edge portion; 45. Fixed edge portion; 451. Fixed through hole;

[0046] 5. Side baffle assembly;

[0047] 6. Smoke guide plate assembly;

[0048] 7. Lighting lamp; 8. Oil-proof sealing sleeve;

[0049] 10. Fan. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0051] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0053] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0054] The present embodiment provides a range hood head, which can be applied to an integrated stove to achieve smoke collection during the fume extraction process, improve the smoke collection effect, enhance the fume extraction capacity of the integrated stove, and at the same time improve the safety of use of the range hood head and the integrated stove.

[0055] like Figures 1 to 3 As shown, the smoke machine head includes a machine head frame 1, a smoke guide plate assembly 6 and a flap mechanism. Specifically, the machine head frame 1 has a smoke collecting chamber 16 with an open front side; the smoke guide plate assembly 6 is installed on the front side of the machine head frame 1 and closes the lower opening of the smoke collecting chamber 16, and a smoking port is formed between the upper end of the smoke guide plate assembly 6 and the top of the machine head frame 1. The flap mechanism includes a flap assembly 2 and a push rod motor 3, the push rod motor 3 is installed inside the smoke collecting chamber 16 and the upper end of its driving rod 32 is connected to the flap assembly 2, and the push rod motor 3 drives the flap assembly 2 to switch between an open state of opening the smoking port and a closed state of closing the smoking port.

[0056] The push rod motor 3 includes a motor body 31 and a driving rod 32. The lower end of the motor body 31 is hinged to the head frame 1 through a lower hinge shaft, the lower end of the driving rod 32 is connected to the telescopic part 311 of the motor body 31, and the upper end of the driving rod 32 is connected to the upper part of the flap assembly 2 through an upper hinge shaft 33.

[0057] When the hood fan head is in a non-use state, the flap assembly 2 is in a closed state, the flap assembly 2 closes the smoking port, and the front side surface of the flap assembly 2 is flush with the front side surface of the smoke guide plate assembly 6, that is, the flap assembly 2 and the smoke guide plate assembly 6 are spliced ​​up and down to make the overall appearance of the hood fan head simple, so that the overall appearance of the hood fan head is simple and beautiful, so as to improve the appearance and cleaning convenience of the hood fan head and the integrated stove, and to prevent the odor inside the hood fan head from escaping through the smoking port; when the hood fan head is in use, the motor body 31 drives the driving rod 32 to extend upward to push the flap assembly 2 upward, and flip the flap assembly 2 to open the smoking port, so that the oil smoke can enter the smoke collection chamber 16 through the smoking port, and the flap assembly 2 can stop the oil smoke from escaping upward, thereby enhancing the smoke collection effect; when the flap assembly 2 needs to be closed, the motor body 31 drives the driving rod 32 to move downward, so that the driving rod 32 pulls the flap assembly 2 to close the smoking port.

[0058] It is worth noting that the directional descriptions such as "front", "back", "left" and "right" in the previous and following texts are based on the position of the range hood head relative to the operator when it is in use, that is, the side of a structure close to the operator is the front side, the side away from the operator is the back side or dorsal side, the side close to the left hand of the operator facing the range hood head is the left side, and the side close to the right hand of the operator facing the range hood head is the right side.

[0059] In order to enhance the smoke collection effect, when the flap assembly 2 is in the open state, the flap assembly 2 extends forward from top to bottom, so that the machine head frame 1, the smoke guide plate assembly 6 and the flap assembly 2 are surrounded to form a C-shaped negative pressure zone, whose open radiation surface can envelop the oil smoke area and block the upper body of the cook, forming high and low negative pressure zones, wherein the high negative pressure zone is formed near the upper end of the smoke guide plate assembly 6, and the low negative pressure zone is formed at the C-shaped negative pressure zone surrounded by the machine head frame 1, the smoke guide plate assembly 6 and the flap assembly 2. When the oil smoke rises to the high negative pressure zone, most of the oil smoke can be instantly sucked into the smoke collection chamber 16 from above the smoke guide plate assembly 6, and a small part of the oil smoke enters the C-shaped negative pressure zone due to the large rising force. At this time, the oil smoke transitions to the inside of the smoke collection chamber 16 along the flap assembly 2, the top wall of the smoke collection chamber 16 and the rear wall of the smoke collection chamber 16, thereby improving the smoke collection effect of the range hood head and the integrated stove.

[0060] In this embodiment, when the flap assembly 2 is in the open state, the angle of the flap assembly 2 relative to the vertical plane is 50° to 70°, so as to increase the range of the oil smoke envelope, improve the smoothness of the oil smoke passing through the C-shaped negative pressure area into the smoke collecting chamber 16, and improve the smoke collecting effect. When the flap assembly 2 is in the open state, the distance between the lower end of the flap assembly 2 and the plane where the outer side of the smoke guide plate assembly 6 is located is 240mm to 300mm, which can effectively block the noise generated by a part of the smoking port while meeting the smoking effect, so as to reduce the noise transmitted to the human ear, thereby reducing the noise during cooking and improving the user experience.

[0061] In order to further improve the smoke collecting effect of the hood head, the hood head further includes a side baffle assembly 5, which is provided at each of the left and right ends of the flap assembly 2, and the side baffle assembly 5 can be unfolded when the flap assembly 2 is opened and folded when the flap assembly 2 is closed. When the flap assembly 2 is in the open state, the front end of the side baffle assembly 5 is connected to the flap assembly 2, and the rear end of the side baffle assembly 5 is located at the rear side of the front side of the side frame 13.

[0062] By providing a side baffle assembly 5 that can be expanded and folded with the flap assembly 2, when the flap assembly 2 is opened, the side baffle assembly 5 can be expanded to close the side of the upper smoke collecting chamber 16, thereby reducing the probability of oil smoke escaping to the left and right sides, improving the smoking effect, and thus improving the smoke collecting effect of the range hood head; at the same time, the side baffle assembly 5 can be folded as the flap assembly 2 is closed, so that the expanded area of ​​the side baffle assembly 5 when the flap assembly 2 is opened can meet the lateral smoke blocking effect while reducing the space occupied by the side baffle assembly 5 after the flap assembly 2 is closed, so that when the flap assembly 2 is in a closed state, the side baffle assembly 5 can be completely accommodated between the flap assembly 2 and the back panel 12, and the thickness requirement for the range hood head is reduced, thereby improving the structural compactness of the range hood head.

[0063] In this embodiment, the structure of the side baffle assembly 5 can be set with reference to the prior art, which is not the focus of this embodiment and will not be described in detail here.

[0064] In this embodiment, the push rod motor 3 is arranged in the middle of the head frame 1 along the length direction, so that the point of action between the push rod motor 3 and the flap assembly 2 is located in the middle of the flap assembly 2 along the length direction, which can improve the stability of the force applied to the flap assembly 2 and the stability of its operation.

[0065] like Figures 3 to 6 As shown, in order to protect the motor body 31, in this embodiment, the range hood head further includes a motor cover 4, which is installed in the smoke collecting chamber 16 and encloses the chamber wall of the smoke collecting chamber 16 to form an oil-proof chamber, and a rod avoidance hole 417 is opened on the front side of the upper end of the motor cover 4. The motor body 31 is installed in the oil-proof chamber and the driving rod 32 extends out of the rod avoidance hole 417 to connect with the flap assembly 2. The lower end of the motor cover 4 is located at the rear side of the smoke guide plate assembly 6, and the width of the lower end of the motor cover 4 in the left-right direction gradually decreases from top to bottom.

[0066] The motor hood 4 and the range hood head provided in the present embodiment reduce the width of the lower end of the motor hood 4 in the left-right direction, so that guide surface structures are formed on both sides of the lower end of the motor hood 4, which can guide the smoke on the left and right sides of the motor hood 4 to flow below the motor hood 4; when the range hood head is installed in the integrated stove, the motor hood 4 is centrally arranged, and the fan 10 inside the integrated stove is usually arranged below the motor hood 4, thereby better guiding the smoke to flow toward the air inlet of the fan 10, reducing the influence of the setting of the motor hood 4 on the oil fume extraction resistance, improving the flow smoothness of the smoke in the smoke collection chamber 16, reducing the noise generated when the smoke flows, and thus improving the oil fume extraction effect.

[0067] like Figure 2 and Figure 4As shown, the head frame 1 includes a back plate 12, a top beam 11 connected to the top of the back plate 12, two side frames 13 connected to the left and right sides of the back plate 12, and a bottom frame assembly 14 connected to the lower end of the back plate 12, and the left and right ends of the bottom frame assembly 14 are respectively connected to the two side frames 13. The back plate 12, the top beam 11, the bottom frame assembly 14 and the two side frames 13 are surrounded to form a smoke collecting chamber 16. The lower end of the smoke guide plate assembly 6 is docked with the bottom frame assembly 14, and the left and right sides of the smoke guide plate assembly 6 are installed on the front side of the two side frames 13. The left and right sides of the smoke guide plate assembly 6 are preferably aligned with the left and right outer sides of the two side frames 13 to improve the appearance of the head frame 1 and the smoke machine head. A smoke exhaust port 141 is provided on the bottom surface of the bottom frame assembly 14, and the smoke exhaust port 141 is connected to the smoke collecting chamber 16 to discharge the oil smoke into the air duct inside the integrated stove.

[0068] The motor cover 4 is mounted on the back plate 12 and preferably the top end is in contact with the top beam 11, so that the motor cover 4 can be a cover structure with the rear side and the top end opened, which simplifies the structure of the motor cover 4 and reduces the difficulty of processing the motor cover 4. The top beam 11 has a top plate portion 111 that forms the top wall of the smoke collecting cavity 16. The upper end of the motor cover 4 is in contact with the top plate portion 111, so that the top plate portion 111 closes the upper end opening of the oil-proof cavity, thereby improving the overall structural aesthetics of the range hood head after the flap assembly 2 is opened.

[0069] In this embodiment, the top beam 11 also includes a circular beam portion 112, the axis of the circular beam portion 112 extends in the left-right direction, and the circular beam portion 112 has a rear end and a front end in the circumferential direction, the rear end is connected to the back plate 12, and the front end is connected to the top plate portion 111. The setting of the circular beam portion 112 makes the top of the head frame 1 present an arc surface structure, so that the appearance of the entire smoke machine head is smooth and simple, and the aesthetics is strong; at the same time, the rear end running trajectory of the flap assembly 2 is arc-shaped, and the setting of the circular beam portion 112 is conducive to providing avoidance for the rear end of the flap assembly 2, thereby improving the coordination between the top beam 11 and the flap assembly 2.

[0070] The top plate 111 preferably extends backwards from top to bottom and the rear end is butted against the back plate 12, so that the top plate 111 can better guide the smoke to flow from the inner side of the flap assembly 2 to the smoke collecting chamber 16, thereby improving the smoke collecting effect of the hood head. The angle between the top plate 111 and the horizontal plane is preferably 30° to 70°.

[0071] In this embodiment, a wire threading hole 1113 is opened on the top plate portion 111, and the power connecting wire of the motor body 31 enters the interior of the top beam 11 through the wire threading hole 1113. The power connecting wire is extended horizontally to a side frame 13, and then extends downward along the internal space of the side frame 13 to pass through the range hood head, so as to realize the connection between the power connecting wire and the controller inside the integrated stove.

[0072] The top plate 111 is recessed from front to back to form a top groove 1111, which is located in the oil-proof cavity and is arranged opposite to the driving rod 32. The top groove 1111 is formed by stamping the top plate 111 backward to form a top pressing profile 1114 at the rear side of the top plate 111, thereby increasing the structural strength and rigidity of the top plate 111, thereby increasing the structural strength and rigidity of the top beam 11, and shielding the top groove 1111 by the motor cover 4, which can prevent the top groove 1111 from being exposed, thereby improving the overall structural aesthetics and cleaning convenience of the range hood head. The threading hole 1113 is arranged at the bottom of the top groove 1111.

[0073] In order to improve the performance of the range hood head and the integrated stove, an illumination lamp 7 is installed on the top plate portion 111, and one illumination lamp 7 is arranged on each of the left and right sides of the motor cover 4 to achieve lighting during cooking.

[0074] like Figure 7 and Figure 8 As shown, in this embodiment, the front side of the motor cover 4 is spaced from the smoke guide plate assembly 6, so that there is a flow gap between the front side of the motor cover 4 and the rear side of the smoke guide plate assembly 6 for the oil smoke to pass through, so that the smoke can obtain a larger turning radius when passing over the upper end of the smoke guide plate assembly 6, making the smoke flow smoother, reducing the probability of vortex generation, thereby reducing the resistance of smoke flow, improving the extraction effect of oil smoke, and reducing operating noise. In other embodiments, the front side of the lower end of the motor cover 4 can also be attached to or connected to the smoke guide plate assembly 6.

[0075] In this embodiment, the motor cover 4 includes a cover body, the cover body includes a cover front plate 41 and a cover side plate 42 connected to the left and right sides of the cover front plate 41, and the cover front plate 41, the two cover side plates 42 and the head frame 1 are surrounded to form an oil-proof cavity. The cover front plate 41 and the smoke guide plate assembly 6 are arranged at intervals to form a flow gap, and a rod avoidance hole 417 is provided at the upper end of the cover front plate 41. The structural form of this motor cover 4 makes the cross section of the motor cover 4 U-shaped, while ensuring the installation space of the push rod motor 3 in the motor cover 4, the motor cover 4 is relatively small in the left and right width direction, reducing the overall size of the motor cover 4, thereby reducing the effect of the setting of the motor cover 4 on the smoke flow resistance; at the same time, the structure of this motor cover 4 is simple, and it is easy to realize the demoulding processing of the motor cover 4, reducing the processing cost. In other embodiments, the cross section of the motor cover 4 can also be an arc-shaped structure.

[0076] The lower end of each cover side plate 42 has a side guide surface 422, and the spacing between the two side guide surfaces 422 gradually decreases from top to bottom so that the width of the lower end of the motor cover 4 gradually shrinks. The upper end of the cover front plate 41 is provided with a rod avoidance hole 417. In the vertical direction, the side guide surface 422 is not higher than the upper end of the smoke guide plate assembly 6. By arranging the side guide surface 422 below the upper end of the smoke guide plate assembly 6, the structure of the exposed part of the upper end of the motor cover 4 can be more regular while ensuring the flow gathering effect at the lower end of the motor cover 4, thereby improving the overall structural aesthetics of the smoke machine head.

[0077] The cover side plate 42 also includes a main side surface 421 connected to the upper end of the side guide surface 422, and the main side surface 421 is preferably arranged vertically to simplify the processing of the motor cover 4. The width of the two main side surfaces 421 in the left-right direction is D1, that is, the distance between the upper ends of the two cover side plates 42 is D1, and the distance between the lower ends of the two side guide surfaces 422 is D2, D2 = 0.7D1 ~ 0.95D1, so that the side guide surface 422 and the main side surface 421 can be smoothly transitioned to better ensure the drainage effect.

[0078] Preferably, on any cross section, the width of the two side guide surfaces 422 in the left-right direction gradually decreases from front to back, so that the left and right sides of the motor cover 4 have a draft angle, which is conducive to the drafting during the processing of the motor cover 4. The above D1 and D2 are the average widths in the front-to-back direction.

[0079] The front side of the motor cover 4 is recessed backward to form a drainage groove 418, which is set to pass through from left to right and directly faces the upper end of the smoke guide plate assembly 6. By setting the drainage groove 418 directly facing the upper end of the smoke guide plate assembly 6, the distance between the upper end of the smoke guide plate assembly 6 and the motor cover 4 can be increased, thereby further increasing the turning radius of the smoke when passing over the upper end of the smoke guide plate assembly 6, improving the smoothness of the smoke flow, and further improving the effect of oil smoke extraction.

[0080] Furthermore, the cover front plate 41 has a connected rear concave surface 412 and a front convex surface 411, the front convex surface 411 is connected to the lower end of the inner concave surface, and the concave space of the rear concave surface 412 forms a drainage groove 418. By setting the front convex surface 411, it can be ensured that the space between the front convex surface 411 and the reinforcing beam 15 is sufficient for the installation of the motor body 31, and the setting of the drainage groove 418 is avoided to affect the installation of the motor body 31. The front convex surface 411 is connected between the two side guide surfaces 422.

[0081] The minimum distance between the front convex surface 411 and the smoke guide plate assembly 6 is 8mm to 15mm, so as to avoid the spacing between the two being too large, which will increase the spacing requirement between the smoke guide plate assembly 6 and the back plate 12, and at the same time avoid the spacing between the two being too small, which will prevent the oil smoke from flowing between the front convex surface 411 and the back of the smoke guide plate assembly 6.

[0082] In this embodiment, the front convex surface 411 and the rear concave surface 412 are both smooth curved surface structures to reduce the resistance of smoke flowing in the gap between the front convex surface 411 and the back side of the smoke guide plate assembly 6, and reduce the noise generated when the smoke flows. The front convex surface 411 and the rear concave surface 412 are smoothly transitionally connected.

[0083] In order to further increase the smoothness of the smoke flow, the front convex surface 411 is gradually extended backward from the maximum convex position from top to bottom to form a front guide surface 413 on the lower side of the front convex surface 411, thereby making the distance between the front guide surface 413 and the smoke guide plate assembly 6 gradually decrease from the maximum convex position of the front convex surface 411, thereby guiding the oil smoke to flow downward along the front convex surface 411 and the front guide surface 413; at the same time, the setting of the front guide surface 413 extending obliquely backward forms a downward flaring structure between the front convex surface 411 and the smoke guide plate assembly 6, thereby increasing the speed of the smoke flow and further improving the oil smoke extraction effect.

[0084] The front plate 41 of the hood also includes a front guide surface 414, which extends from top to bottom and tilts backward, and the lower end of the front guide surface 414 is smoothly connected to the rear concave surface 412. The setting of the front guide surface 414 can increase the drainage range of the drainage groove 418, extend the drainage groove 418 upward, and gradually reduce the distance between the upper part of the drainage groove 418 and the plane where the smoke guide plate assembly 6 is located, thereby making the backward depression depth of the overall rear concave space of the front plate 41 of the hood smoothly transition, reducing the probability of smoke forming vortexes at the drainage groove 418, and improving the smoothness of smoke flow; further, the setting of the front guide surface 414 is also conducive to guiding the oil smoke entering the smoking port to flow downward along the front guide surface 414, further reducing the resistance of smoke flow. The inclination angle of the front guide surface 414 relative to the vertical plane is preferably 5° to 10°.

[0085] Furthermore, the front plate 41 of the hood also includes a front top plane 415 connected to the upper end of the front guide surface 414 and a top arc surface 416 connected to the top of the front top plane 415. The front top plane 415 is vertically arranged, and the front top arc surface 416 is an arc-shaped structure with an opening toward the oil-proof cavity. The setting of the front top arc surface 416 is used to better achieve docking with the top plate portion 111, to ensure that the top plate portion 111 and the upper end of the motor cover 4 can fit together, and to reduce the probability of the top plate portion 111 and the upper end of the motor cover 4 forming a small angle and causing the smoke flow to be obstructed, thereby improving the smoothness of the smoke flow.

[0086] The motor cover 4 has a cover bottom surface that closes the lower opening of the oil-proof cavity. The left and right sides of the cover bottom surface are connected to the side guide surface 422 with a circular arc smooth transition to improve the smoothness of the smoke flowing from both sides to the bottom of the motor cover 4. The cover bottom plate and the front side of the motor cover 4 are connected with a circular arc smooth transition to better ensure the smoothness of the smoke flowing from the flow gap along the front guide surface 413. The width of the lower end of the motor cover 4 in the front-to-back direction is 5mm to 20mm, so as to increase the distance between the lower end of the motor cover 4 and the smoke guide plate assembly 6 as much as possible, and improve the smoothness of the smoke gathering under the motor cover 4.

[0087] like Figure 4 and Fig. 9 As shown, in order to prevent oil smoke from entering the oil-proof cavity through the rod perforation, an oil-proof sealing sleeve 8 is provided at the rod avoidance hole 417. The oil-proof sealing sleeve 8 includes a sealing ring portion and a sealing membrane portion connected to the inner side of the sealing ring portion. The sealing ring portion is installed at the edge of the rod avoidance hole 417. The sealing membrane portion is provided with a slit for the drive rod 32 to extend out movably, so as to ensure that the drive rod 32 can rotate a certain stroke in the oil-proof sealing sleeve 8 while allowing the sealing membrane portion to always wrap the drive rod 32, thereby reducing the probability of oil smoke entering the oil-proof cavity through the connection between the oil-proof sealing sleeve 8 and the drive rod 32.

[0088] In this embodiment, the rod avoidance hole 417 passes through the upper edge of the motor cover 4. This arrangement allows the motor cover 4 to be disassembled and assembled separately on the basis of keeping the push rod motor 3 immobile, thereby improving the convenience of disassembly and assembly of the motor cover 4, and at the same time, also improving the convenience of disassembly and assembly of the oil-proof sealing sleeve 8 on the motor cover 4.

[0089] The sealing ring part is an overall U-shaped structure, and the hole edge of the rod avoidance hole 417 is a U-shaped edge with the opening facing upward. The shape of the sealing ring part is adapted to the shape of the U-shaped edge to improve the convenience of disassembly and assembly between the oil-proof sealing sleeve 8 and the motor cover 4. The outer wall of the sealing ring part is provided with a slot, which is consistent with the shape of the hole edge of the rod avoidance hole 417, and the hole edge is inserted into the slot to realize the installation of the oil-proof sealing sleeve 8 on the motor cover 4.

[0090] In order to improve the installation convenience of the oil-proof sealing sleeve 8 on the motor cover 4, the top of the cover front plate 41 is recessed backward to form an avoidance groove 419, and the bottom of the avoidance groove 419 is provided with the above-mentioned rod avoidance hole 417, and the oil-proof sealing sleeve 8 is installed in the avoidance groove 419. The setting of the avoidance groove 419 can prevent the front side of the oil-proof sealing sleeve 8 from protruding from the front side of the cover front plate 41, and can improve the overall structural aesthetics of the range hood head. The rear end of the avoidance groove 419 is spaced apart from the top plate 111, and the rear end of the oil-proof sealing sleeve 8 abuts against the top plate 111, so that the slot on the oil-proof sealing sleeve 8 is an annular groove with both ends closed, thereby facilitating the sealing between the cover front plate 41 and the top plate 111.

[0091] It is worth noting that the specific structure of the oil-proof sealing sleeve 8 and the matching structure between the oil-proof sealing sleeve 8 and the motor cover 4 can be set with reference to the prior art. This is not the focus of the present utility model and will not be described in detail here.

[0092] like Figure 4 and Figure 8 As shown, in order to improve the installation stability of the push rod motor 3 on the head frame 1, a reinforcing beam 15 is installed on the front side of the back plate 12, the motor cover 4 is installed on the front side of the reinforcing beam 15 and encloses the reinforcing beam 15 to form an oil-proof cavity, and the lower end of the motor body 31 is installed on the reinforcing beam 15. The setting of the reinforcing beam 15 can enhance the structural strength of the connection between the head frame 1 and the motor body 31, reduce the probability of deformation of the head frame 1, improve the overall structural strength and rigidity of the head frame 1, and ensure the installation stability of the push rod motor 3 on the head frame 1.

[0093] In this embodiment, the reinforcing beam 15 extends in the vertical direction, the lower end of the reinforcing beam 15 extends to abut against the bottom frame assembly 14, and the upper end of the reinforcing beam 15 extends to the top beam 11, thereby increasing the length of the reinforcing beam 15, thereby enhancing the structural strength of the entire head frame 1. In other embodiments, the reinforcing beam 15 can also extend in the left-right direction, and the two ends of the reinforcing beam 15 are respectively connected to the two side frames 13.

[0094] like Fig. 9 and Fig.10 As shown, in order to improve the convenience of disassembly and assembly of the motor cover 4, in this embodiment, the lower end of the motor cover 4 is fastened to the head frame 1 through a cover fastener, and the upper end of the motor cover 4 is clamped with the top beam 11, and the cover fastener is located on the rear side of the smoke guide plate assembly 6. This arrangement can reduce the number of cover fasteners and improve the insertion efficiency of the motor cover 4. At the same time, with this arrangement, when the cover fastener is removed, the upper end of the motor cover 4 can be pulled downward to disengage the clamping connection between the top beam 11, so that the motor cover 4 can be disassembled downward. Therefore, when the push rod motor 3 is damaged and the flap assembly 2 is closed and cannot be opened, the smoke guide plate assembly 6 can be removed to expose the lower end of the motor cover 4 and the cover fasteners, and the motor cover 4 can be disassembled and assembled, so that the motor body 31 can be inspected and maintained, thereby improving the convenience of inspection and maintenance of the push rod motor 3 and improving the reliability of the range hood head; furthermore, the lower end of the motor cover 4 is connected by the cover fastener, so that the cover fastener can be hidden in the rear side of the smoke guide plate assembly 6, thereby improving the overall structural aesthetics and cleaning convenience of the range hood head.

[0095] Furthermore, the left and right sides of the lower end of the motor cover 4 are respectively connected to the reinforcing beam 15 through cover fasteners to better ensure the connection stability of the motor cover 4.

[0096] In order to improve the connection convenience between the motor cover 4 and the reinforcing beam 15, a fixing edge portion 45 is extended backward from the rear end of the main side surface 421, and the two fixing edges 45 are fitted and connected to the left and right sides of the reinforcing beam 15, so that the reinforcing beam 15 is sandwiched between the two fixing edges 45. A fixing through hole 451 is provided at the lower end of the fixing edge portion 45, and a fixing threaded hole is provided on the reinforcing beam 15. The fixing through hole 451 and the fixing threaded hole are aligned, and a cover fastener is passed through the fixing through hole 451 and the fixing threaded hole to fasten the reinforcing beam 15 and the motor cover 4.

[0097] The top of the cover side plate 42 and / or the top of the cover front plate 41 is provided with a snap-on structure, which is used to snap-on with the head frame 1 of the smoke machine head, and the snap-on structure is snap-on with the top plate portion 111 of the top beam 11. Specifically, the snap-on structure is a snap-on portion 43, and a snap-on slot 1112 is provided on the top plate portion 111. The snap-on portion 43 is snap-on to the snap-on slot 1112, thereby simplifying the structure of the top plate portion 111 and improving the snap-on convenience of the motor cover 4 and the top plate portion 111. At the same time, by providing the snap-on slot 1112 on the top plate portion 111 and providing the snap-on portion 43 on the motor cover 4, the installation and positioning of the two can be achieved through the cooperation between the snap-on slot 1112 and the snap-on portion 43, thereby improving the assembly efficiency.

[0098] Preferably, the mouth wall of the bayonet 1112 extends upward to form a bayonet flange 1115, and the bayonet flange 1115 contacts the card plate portion 43 to increase the contact area between the card plate portion 43 and the top plate portion 111, thereby improving the card connection stability between the card plate portion 43 and the top plate portion 111 and improving the installation reliability of the motor cover 4.

[0099] In this embodiment, a card plate portion 43 is protruding from the upper end of the cover front plate 41 to ensure the tightness of the fit between the upper end of the cover front plate 41 and the top plate portion 111, thereby reducing the probability of oil smoke entering the oil-proof cavity from the gap between the upper end of the cover front plate 41 and the upper end of the top plate portion 111. In other embodiments, the card plate portion 43 may be protruding from the top end of the two cover side plates 42.

[0100] The top of the cover front plate 41 is partially folded inward to form a top folding edge 44, and the inner end of the top folding edge 44 is vertically connected to the clamping plate 43, and the top folding edge 44 abuts against the outer side of the top plate 111. This arrangement makes the clamping plate 43 lower than the upper end of the cover front plate 41, so that the clamping port 1112 opened in the top plate 111 is located inside the oil-proof cavity, further preventing the probability of oil smoke entering the interior of the top beam 11 through the clamping port 1112, and reducing the influence of oil smoke on the internal structure of the top beam 11. Preferably, one clamping plate 43 is provided on each of the opposite sides of the rod avoidance hole 417.

[0101] The present embodiment further provides an integrated stove, comprising the above-mentioned range hood head. The integrated stove provided in the present embodiment, by adopting the above-mentioned range hood head, can improve the oil fume extraction effect of the integrated stove, reduce the noise during the operation of the integrated stove, and improve the user experience of the integrated stove.

[0102] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A motor cover, used to cover the outside of a push rod motor (3), characterized in that: A rod avoidance hole (417) is provided on the front side of the upper end of the motor cover, and the rod avoidance hole (417) is used to pass the driving rod (32) of the push rod motor (3). The width of the lower end of the motor cover in the left-right direction is gradually reduced from top to bottom to guide the smoke on both sides of the motor cover to flow to the bottom of the motor cover.

2. The motor cover according to claim 1, characterized in that: The motor cover comprises two cover side panels (42) arranged opposite to each other on the left and right sides and a cover front panel (41) connected between the front sides of the two cover side panels (42); the lower end of each cover side panel (42) comprises a side guide surface (422); the distance between the two side guide surfaces (422) gradually decreases from top to bottom so that the width of the lower end of the motor cover gradually decreases; the upper end of the cover front panel (41) comprises the rod avoidance hole (417).

3. The motor cover according to claim 2, characterized in that: The distance between the upper ends of the two cover side plates (42) is D1, and the distance between the lower ends of the two side guide surfaces (422) is D2, where D2 = 0.75D1 to 0.95D1.

4. The motor cover according to claim 2, characterized in that: The front side of the motor cover has a rear concave surface (412) that is recessed backward and a front convex surface (411) that is protruding forward, the front convex surface (411) is smoothly connected to the lower side of the rear concave surface (412), the rear concave surface (412) is recessed backward to form a drainage groove (418) that runs through left and right, and the front convex surface (411) is connected between the two side guide surfaces (422).

5. The motor cover according to claim 4, characterized in that: The front side of the motor cover has a front guide surface (413) connected to the lower side of the front convex surface (411), the front guide surface (413) extends obliquely backward from top to bottom, and the front guide surface (413) is connected between the two side guide surfaces (422); And / or, the front side of the motor cover has a front guide surface (414), the front guide surface (414) extends obliquely from top to bottom and backward, and the lower end of the front guide surface (414) is smoothly connected to the upper end of the rear concave surface (412).

6. The motor cover according to claim 2, characterized in that: The cover side plate (42) has a main side surface (421) connected to the upper side of the side guide surface (422), a fixed edge portion (45) extending backwards from the rear end of the main side surface (421), and a fixed through hole is formed at the lower end of the fixed edge portion (45); And / or, a top end of the cover side plate (42) and / or a top end of the cover front plate (41) is provided with a snap-fit ​​structure, and the snap-fit ​​structure is used to snap-fit ​​with the head frame (1) of the smoke exhaust machine head.

7. A range hood head, characterized in that: include: A machine head frame (1) having a smoke collecting chamber (16) with an open front side; A smoke guide plate assembly (6) is mounted on the front side of the machine head frame (1) and closes the lower opening of the smoke collecting chamber (16), wherein a smoking port is formed between the upper end of the smoke guide plate assembly (6) and the top of the machine head frame (1); The motor cover according to any one of claims 1 to 6 is located in the smoke collecting chamber (16) and is surrounded by the chamber wall of the smoke collecting chamber (16) to form an oil-proof chamber, the lower end of the motor cover is located at the rear side of the smoke guide plate assembly (6), and the motor cover is located in the middle of the machine head frame (1) in the left-right direction; The flap mechanism comprises a flap assembly (2) and a push rod motor (3), wherein the push rod motor (3) is installed in the oil-proof cavity, and a driving rod (32) of the push rod motor (3) extends out of the oil-proof cavity through the rod avoidance hole (417) and is connected to the flap assembly (2), and the push rod motor (3) drives the flap assembly (2) to close or open the smoking port.

8. The range hood head according to claim 7, characterized in that: The front side of the lower end of the motor cover and the rear side of the smoke guide plate assembly (6) are spaced apart to form a flow gap.

9. The range hood head according to claim 8, characterized in that: The front side of the motor cover is recessed backward to form a drainage groove (418), the drainage groove (418) is arranged to pass through from left to right, and the drainage groove (418) is arranged directly opposite to the upper end of the smoke guide plate assembly (6); And / or, the minimum width of the flow gap in the front-to-back direction is 8 mm to 20 mm.

10. The hood head according to any one of claims 7 to 9, characterized in that: The machine head frame (1) has a top plate portion (11) forming a top wall of the smoke collecting chamber (16); the upper end of the motor cover abuts against the top plate portion (11); and the top plate portion (11) extends backwards in an inclined manner from top to bottom.

11. An integrated stove, comprising the range hood head according to any one of claims 7 to 10.

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