Smoke extraction device with laminated air duct structure

Abstract

The utility model discloses a smoke exhaust device with a laminated air duct structure, which comprises a machine body and a fan, the machine body is provided with a smoke inlet cavity and a smoke exhaust cavity which are vertically laminated, the smoke inlet cavity is close to the upper part, the smoke exhaust cavity is close to the lower part, the smoke inlet cavity is communicated with the smoke exhaust cavity through a communicating hole, the fan is arranged in the smoke exhaust cavity, and an air inlet end directly faces the communicating hole; a smoke inlet hole communicated with the smoke inlet cavity is formed in the top of the machine body, and a smoke exhaust hole communicated with the smoke exhaust cavity is formed in the side wall of the machine body. The smoke inlet cavity and the smoke exhaust cavity which are stacked up and down are arranged in the machine body, the smoke inlet cavity is communicated with the smoke exhaust cavity through the communicating hole, the fan is arranged in the smoke exhaust cavity, the air inlet end of the fan directly faces the communicating hole, the fan is horizontally placed, and the air inlet end of the fan is parallel to the smoke inlet hole, so that when the fan is started, air flows smoothly and rapidly, the smoke exhaust efficiency is good, and the whole machine body is compact and small.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood technical field especially has the smoke extractor with laminated air duct structure. BACKGROUND

[0002] The lower suction type range hood is a device for keeping the kitchen clean during cooking by sucking and discharging smoke downward. The existing lower suction type range hood comprises a machine body and a fan, the machine body has a smoke suction cavity, the smoke suction cavity is communicated with the outside, the fan is arranged in the smoke suction cavity, the fan is vertically placed, and the air inlet end of the fan is perpendicular to the air inlet end of the smoke suction cavity. Due to the vertical placement of the fan, the air inlet end of the fan is perpendicular to the air inlet end of the smoke suction cavity, the air flow speed is slow, and the smoke discharge efficiency is poor. SUMMARY

[0003] The utility model discloses a smoke extractor with laminated air duct structure, which solves the problem of the vertical placement of the fan in the existing lower suction type range hood, the perpendicularity between the air inlet end of the fan and the air inlet end of the smoke suction cavity, the slow air flow speed, and the poor smoke discharge efficiency.

[0004] The utility model discloses a smoke extractor with laminated air duct structure, which solves the problem of the vertical placement of the fan in the existing lower suction type range hood, the perpendicularity between the air inlet end of the fan and the air inlet end of the smoke suction cavity, the slow air flow speed, and the poor smoke discharge efficiency.

[0005] The utility model discloses a smoke extractor with laminated air duct structure, which solves the problem of the vertical placement of the fan in the existing lower suction type range hood, the perpendicularity between the air inlet end of the fan and the air inlet end of the smoke suction cavity, the slow air flow speed, and the poor smoke discharge efficiency.

[0006] Further, the communication hole is at least partially opposite to the smoke inlet hole.

[0007] Further, the communication hole is a round hole, and the smoke inlet hole is a round hole or a strip-shaped hole.

[0008] Further, the smoke suction cavity has a main suction space and an auxiliary suction space, the main suction space extends upward from the communication hole and is communicated with the auxiliary suction space, and the smoke inlet hole is at least communicated with the main suction space.

[0009] Further, the machine body is provided with a protective net piece in the communication hole, and the protective net piece divides the communication hole into a plurality of communication mesh holes.

[0010] Further, the protective net piece is integrally formed with the machine body, and the protective net piece and the machine body slowly transition to form an arc-shaped transition part extending downward from the communication hole.

[0011] Further, the body has a bottom shell, a middle shell and a panel stacked from bottom to top, the panel and the middle shell enclose the smoke inlet cavity, the middle shell and the bottom shell enclose the smoke outlet cavity, the panel is provided with the smoke inlet hole, the bottom of the middle shell is provided with the communication hole, and the sidewall of the bottom shell is provided with the smoke outlet hole.

[0012] Further, the panel and the middle shell are detachably fixedly connected, and / or the middle shell and the bottom shell are detachably fixedly connected.

[0013] Further, the lower side of the middle shell is provided with a positioning groove for inserting the bottom shell.

[0014] The technical scheme has the advantages that the smoke inlet cavity and the smoke outlet cavity are stacked in the body, the smoke inlet cavity is communicated with the smoke outlet cavity through the communication hole, the fan is arranged in the smoke outlet cavity and the air inlet end of the fan faces the communication hole, the fan is horizontally arranged and the air inlet end is parallel to the smoke inlet hole, so that the air flows smoothly and quickly when the fan is started, the smoke outlet efficiency is high, and the whole body is compact and small. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced.

[0017] Figure 1 is a perspective view of the smoke extraction device with a stacked air duct structure disclosed in the embodiment;

[0018] Figure 2 is an exploded view of the smoke extraction device with a stacked air duct structure disclosed in the embodiment;

[0019] Figure 3 is a sectional view of the smoke extraction device with a stacked air duct structure disclosed in the embodiment;

[0020] Figure 4 is Figure 3 is a local enlarged view of A in FIG. 4;

[0021] Figure 5 is a perspective view of the middle shell in the embodiment. DETAILED DESCRIPTION

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Figures 1-5 As shown, the smoke extraction device with a stacked air duct structure includes a body 1, a fan 2, and an electromagnetic component 3. The body 1 has a smoke inlet chamber 101 and a smoke exhaust chamber 102 stacked vertically, with the smoke inlet chamber 101 located at the top and the smoke exhaust chamber 102 located at the bottom. The top of the body 1 is provided with a smoke inlet hole 103 communicating with the smoke inlet chamber 101, and the side wall of the body 1 is provided with a smoke exhaust hole 104 communicating with the smoke exhaust chamber 102. The smoke inlet chamber 101 is connected to the smoke exhaust chamber 102 through a connecting hole 105. The fan 2 is located in the smoke exhaust chamber 102 with its air inlet end facing the connecting hole 105. The fan 2 is used to drive the gas to flow from the smoke inlet hole 103 to the smoke exhaust hole 104. The electromagnetic component 3 is located on the top of the body 1 and is located on one side of the smoke inlet hole 103. This embodiment provides a smoke extraction device with a stacked air duct structure to solve the problems of existing downdraft range hoods where the fan is placed vertically, the air inlet of the fan is perpendicular to the air inlet of the smoke extraction chamber, resulting in slow airflow and poor smoke extraction efficiency. The solution is to configure a vertically stacked smoke inlet chamber 101 and smoke exhaust chamber 102 inside the body 1. The smoke inlet chamber 101 is connected to the smoke exhaust chamber 102 through a connecting hole 105. The fan 2 is located in the smoke exhaust chamber 102 with its air inlet facing the connecting hole 105. The fan 2 is placed horizontally with its air inlet parallel to the smoke inlet hole 103, so that the airflow is smooth and fast when the fan 2 is started, resulting in good smoke extraction efficiency, and the body 1 is compact and small in size.

[0024] In this embodiment of the invention, the connecting hole 105 is directly opposite the smoke inlet hole 103. By configuring the connecting hole 105 directly opposite the smoke inlet hole 103, the above arrangement ensures smooth and rapid airflow when the fan 2 starts, resulting in excellent smoke exhaust efficiency.

[0025] In this embodiment of the invention, the connecting hole 105 is a circular hole, and the smoke inlet hole 103 is a circular hole or a strip-shaped hole. By configuring the connecting hole 105 as a circular hole, the shape of the connecting hole 105 is adapted to the shape of the air inlet end of the fan 2, resulting in smooth and rapid airflow and excellent smoke extraction efficiency. Simultaneously, since the air inlet end of the fan 2 is horizontally placed and parallel to the smoke inlet hole 103, the smoke inlet hole 103 can be configured as a circular hole adapted to the shape of the connecting hole 105, a strip-shaped hole partially opposite the connecting hole 105, or other shapes, allowing for flexible and varied designs.

[0026] In the embodiment of the utility model, the smoke inlet cavity 101 has main suction space 106 and auxiliary suction space 107, the main suction space 106 extends upwards from the communication hole 105 and communicates with the auxiliary suction space 107, and the smoke inlet hole 103 at least communicates with the main suction space 106. The above-mentioned setting is configured to the smoke inlet cavity 101 as the main suction space 106 extending upwards from the communication hole 105 and the auxiliary suction space 107 communicating with the main suction space 106, the smoke inlet hole 103 at least communicates with the main suction space 106, and the smoke inlet cavity 101 has large smoke inlet amount and good smoke exhaust efficiency.

[0027] In the embodiment of the utility model, the machine body 1 is provided with a protective net piece 108 in the communication hole 105, and the communication hole 105 is divided into a plurality of communication mesh holes 109 by the protective net piece 108. The above-mentioned setting is configured to the protective net piece 108 in the communication hole 105, avoids that the user stretches into the smoke exhaust cavity 102 and touches the fan 2 by mistake, and has high use safety.

[0028] In the embodiment of the utility model, the protective net piece 108 is integrally formed with the machine body 1, and the protective net piece 108 and the machine body 1 slowly transition to form an arc-shaped transition part 110 extending downwards from the communication hole 105. Since the protective net piece 108 and the machine body 1 slowly transition to form the arc-shaped transition part 110 extending downwards from the communication hole 105, the connection between the protective net piece 108 and the machine body 1 is stable and not easy to break.

[0029] In the embodiment of the utility model, the machine body 1 has a bottom shell 111, a middle shell 112 and a panel 113 which are stacked from bottom to top, the panel 113 and the middle shell 112 jointly form the smoke inlet cavity 101, the middle shell 112 and the bottom shell 111 jointly form the smoke exhaust cavity 102, the panel 113 is provided with the smoke inlet hole 103 and the electromagnetic element 3, the bottom of the middle shell 112 is provided with the communication hole 105, and the sidewall of the bottom shell 111 is provided with the smoke exhaust hole 104. The above-mentioned setting is configured to the machine body 1 as the bottom shell 111, the middle shell 112 and the panel 113 which are stacked from bottom to top, the panel 113 and the middle shell 112 jointly form the smoke inlet cavity 101, and the middle shell 112 and the bottom shell 111 jointly form the smoke exhaust cavity 102, so that the distribution of the smoke inlet cavity 101, the smoke exhaust cavity 102, the smoke inlet hole 103, the smoke exhaust hole 104 and the electromagnetic element 3 is compact and reasonable.

[0030] In the embodiment of the utility model, the panel 113 and the middle shell 112 are detachably fixedly connected, and the middle shell 112 and the bottom shell 111 are detachably fixedly connected. Specifically, the bottom shell 111 is locked on the middle shell 112 through bolts, and the middle shell 112 is locked on the panel 113 through bolts. The above-mentioned setting is configured to the panel 113 and the middle shell 112 as detachably fixedly connected, and the middle shell 112 and the bottom shell 111 as detachably fixedly connected, so that the panel 113, the middle shell 112 and the bottom shell 111 are convenient to disassemble and assemble.

[0031] In the embodiment of the utility model, the middle shell 112 is provided with a positioning groove 114 for the insertion of the bottom shell 111. The above-mentioned arrangement allows the middle shell 112 and the bottom shell 111 to be stably connected and reduces the noise generated by the operation of the fan 2.

[0032] It should be understood that the utility model uses the terms "first", "second" and the like to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, the "first" information can also be referred to as "second" information without departing from the scope of the utility model, and similarly, the "second" information can also be referred to as "first" information. In addition, the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0033] The above-mentioned is one or more embodiments provided in combination with specific content, and does not mean that the specific implementation of the utility model is limited to these descriptions. Any approximation, similarity or replacement of the method and structure of the utility model, or any technical deduction or substitution made on the basis of the concept of the utility model should be regarded as the protection of the utility model.

Claims

1. A smoke extraction device with a layered duct structure, comprising a body and a fan, characterized in that, The machine body has a smoke inlet chamber and a smoke exhaust chamber stacked vertically, with the smoke inlet chamber located at the top and the smoke exhaust chamber at the bottom. The smoke inlet chamber is connected to the smoke exhaust chamber via a connecting hole. The fan is located inside the smoke exhaust chamber with its air inlet facing the connecting hole. The machine body has a smoke inlet hole at its top that communicates with the smoke inlet chamber and a smoke exhaust hole on its side wall that communicates with the smoke exhaust chamber.

2. The smoke extraction device with a layered air duct structure according to claim 1, characterized in that, The connecting hole is at least partially opposite the smoke inlet hole.

3. The smoke extraction device with a layered air duct structure according to claim 1, characterized in that, The connecting hole is a round hole, and the smoke inlet hole is a round hole or a strip-shaped hole.

4. The smoke extraction device with a layered air duct structure according to claim 1, characterized in that, The smoke inlet chamber has a main suction space and an auxiliary suction space. The main suction space extends upward from the connecting hole and communicates with the auxiliary suction space. The smoke inlet hole is at least connected to the main suction space.

5. The smoke extraction device with a layered air duct structure according to claim 1, characterized in that, The body has a protective mesh inside the connecting hole, which divides the connecting hole into several connecting mesh holes.

6. The smoke extraction device with a stacked air duct structure according to claim 5, characterized in that, The protective net is integrally formed with the body, and the protective net and the body gradually transition to form an arc-shaped transition portion extending downward from the connecting hole.

7. The smoke extraction device with a layered air duct structure according to claim 1, characterized in that, The body has a bottom shell, a middle shell, and a panel stacked from bottom to top. The panel and the middle shell together form the smoke inlet chamber, and the middle shell and the bottom shell together form the smoke exhaust chamber. The panel is provided with the smoke inlet hole, the bottom of the middle shell is provided with the connecting hole, and the side wall of the bottom shell is provided with the smoke exhaust hole.

8. The smoke extraction device with a stacked air duct structure according to claim 7, characterized in that, The panel is detachably and fixedly connected to the middle shell; and / or the middle shell and the bottom shell are detachably and fixedly connected.

9. The smoke extraction device with a stacked air duct structure according to claim 7, characterized in that, The lower side of the middle shell is provided with a positioning groove for the bottom shell to be inserted.

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