A wind curtain device with purification function and a range hood

Abstract

The utility model discloses a kind of wind screen device and range hood with purification function, wind screen device with purification function includes cyclone lower cover, negative ion emission head and wind screen fan;Cyclone lower cover is equipped with air duct, air duct is vertically through cyclone lower cover, first installation site, second installation site and limit baffle are equipped on cyclone lower cover, first installation site is located in air duct, second installation site is located outside air duct and is located between two limit baffle, limit block is equipped on the face of limit baffle mutually close;Negative ion emission head includes body and emission section, body is installed in second installation site, emission section is installed in first installation site, the gap between two limit blocks is less than the diameter of body;Wind screen fan is installed on cyclone lower cover, the air outlet side of wind screen fan is towards air duct.The utility model's wind screen device with purification function can improve the safety of wind screen device and the installation stability of negative ion emission head on cyclone lower cover.

Description

Technical Field

[0001] This utility model relates to the field of smoke hood technology, specifically to an air curtain device and a smoke hood with purification function. Background Technology

[0002] Existing air curtain devices with purification functions, such as Figure 1 As shown, a negative ion emitter is installed inside the air duct of the cyclone cover. The negative ion emitter is vertically set inside the air duct, which requires a relatively high air duct depth. Furthermore, the emitting end of the negative ion emitter extends outside the air duct. When the negative ion emitter releases negative ions, if the user touches the emitting end of the negative ion emitter with their hand, they will experience an electric shock, which will affect the user experience. Utility Model Content

[0003] The purpose of this invention is to provide an air curtain device with purification function for use in a smoke hood, which solves the above-mentioned technical problems.

[0004] The air curtain device with purification function proposed in this utility model includes a cyclone lower cover, a negative ion emitter, and an air curtain fan. The cyclone lower cover is provided with an air duct that runs vertically through the lower cover. The lower cover is provided with a first mounting position, a second mounting position, and a limiting baffle. The first mounting position is located inside the air duct, and the second mounting position is located outside the air duct and between the two limiting baffles. Limiting blocks are provided on the surfaces of the limiting baffles that are close to each other. The negative ion emitter includes a body and an emitting section. The body is installed in the second mounting position, and the emitting section is installed in the first mounting position. The gap between the two limiting blocks is smaller than the diameter of the body. The air curtain fan is installed on the cyclone lower cover, and the air outlet side of the air curtain fan faces the air duct.

[0005] According to one embodiment of the present invention, the lower end of the limiting block is provided with an arc surface, the arc surfaces on the two limiting blocks are located on the same ring, and the diameter of the ring is adapted to the outer diameter of the body.

[0006] According to one embodiment of the present invention, the lower cover of the cyclone is further provided with an installation cavity, and a limiting baffle is provided in the installation cavity.

[0007] According to one embodiment of the present invention, a wire notch is provided on the side of the mounting cavity away from the first mounting position, and the connecting wire of the negative ion emitter is led out of the mounting cavity through the wire notch.

[0008] According to one embodiment of the present invention, a plurality of grilles are provided in the air duct, and air passages are formed between the grilles. The first mounting position is located on the grille closest to the second mounting position.

[0009] According to one embodiment of the present invention, the air duct is further provided with a diffusion channel, which penetrates the grille downwards, the first mounting position penetrates the wall on the corresponding side of the diffusion channel, and the emission section extends to the diffusion channel.

[0010] According to one embodiment of the present invention, the air curtain device with purification function further includes a decorative cover, which is snapped into the diffusion channel. The bottom surface of the decorative cover is flush with the lower edge of the grille, and diffusion holes are provided on the bottom surface of the decorative cover.

[0011] This utility model also proposes a range hood with an air curtain device having the above-mentioned purification function. The range hood is characterized by including a range hood body, the range hood body having an electric control cavity, the bottom of the electric control cavity having an air curtain outlet communicating with the electric control cavity, the range hood body also having an air inlet channel communicating with the electric control cavity, the air curtain device being installed in the electric control cavity, and the air outlet side of the air duct being aligned with the air curtain outlet.

[0012] According to one embodiment of the present invention, the main body of the smoke machine has a cover plate, and an air curtain inlet hole is provided on the part of the cover plate above the electronic control cavity. The air curtain device draws air through the air curtain inlet hole and exhausts air through the air curtain outlet to form an air curtain.

[0013] According to one embodiment of the present invention, an air curtain bracket is provided on the bottom plate of the electrical control cavity. Connecting plates are provided at both ends of the front side of the air curtain bracket. The connecting plates are provided with first connecting holes. A snap-fit ​​plate is provided on the rear side of the air curtain bracket. The snap-fit ​​plate is provided with a snap-fit ​​groove. The cyclone lower cover is placed on the bottom plate of the electrical control cavity. A snap-fit ​​position is provided on its rear side. The snap-fit ​​position is snapped into the snap-fit ​​groove. Connecting seats are provided at both ends of the front side of the air curtain fan. The connecting seats are provided with second connecting holes. Screws pass through the second connecting holes and the first connecting holes to connect the connecting seats to the connecting plates on the corresponding sides.

[0014] Compared with the prior art, the air curtain device with purification function of this utility model has the following advantages:

[0015] This utility model discloses an air curtain device with purification function. The main body of the negative ion emitter is installed at a second mounting position outside the air duct, while the emitting segment extends laterally into the first mounting position inside the air duct. This reduces the space occupied by the negative ion emitter in the air duct depth, and the emitting segment does not protrude outside the air duct, thus avoiding the risk of electric shock from easy contact with the emitting segment by the user, thereby improving the safety of the air curtain device. In addition, the limiting block on the limiting baffle limits the main body of the negative ion emitter, preventing it from easily detaching from the second mounting position, which in turn prevents the emitting segment from easily detaching from the air duct, thereby improving the installation stability of the negative ion emitter on the cyclone cover. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of a smoke machine with an air curtain device in the prior art;

[0017] Figure 2 This is a schematic diagram of the air curtain device with purification function according to this utility model;

[0018] Figure 3This is a schematic diagram of the air curtain device with purification function of this utility model from another direction;

[0019] Figure 4 This is a structural disassembly diagram of the air curtain device with purification function of this utility model;

[0020] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0021] Figure 6 This is a structural cross-sectional view of the smoke hood of this utility model;

[0022] Figure 7 for Figure 6 A magnified view of a section at point B in the middle;

[0023] Figure 8 This is a diagram showing the connection relationship between the air curtain device and the air curtain support in this utility model;

[0024] Figure 9 This diagram shows the connection relationship between the air curtain device and the air curtain support in another direction in this utility model.

[0025] In the diagram: 1. Cyclone lower cover, 11. Air duct, 111. Grille, 112. Diffusion channel, 12. First mounting position, 13. Second mounting position, 14. Limiting baffle, 141. Limiting block, 15. Mounting cavity, 151. Wire notch, 16. Snap-fit ​​position, 2. Negative ion emitter, 21. Body, 22. Emitting section, 3. Air curtain fan, 31. Connecting seat, 311. Second connecting hole, 4. Decorative cover, 41. Diffusion hole, 5. Main body of the range hood, 51. Electrical control cavity, 52. Air curtain outlet, 53. Cover plate, 531. Air curtain inlet, 6. Air curtain bracket, 61. Connecting plate, 611. First connecting hole, 62. Snap-fit ​​plate.

[0026] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0031] This utility model discloses an air curtain device with purification function for use in a smoke hood. Please refer to [link / reference]. Figures 2 to 7 The air curtain device with purification function proposed in this utility model includes a cyclone lower cover 1, a negative ion emitter 2, and an air curtain fan 3. The cyclone lower cover 1 is provided with an air duct 11, which runs vertically through the cyclone lower cover 1. The cyclone lower cover 1 is provided with a first mounting position 12, a second mounting position 13, and a limiting baffle 14. The first mounting position 12 is located inside the air duct 11, and the second mounting position 13 is located outside the air duct 11 and between the two limiting baffles 14. Limiting blocks 141 are provided on the surfaces of the limiting baffles 14 that are close to each other. The negative ion emitter 2 includes a body 21 and an emitting section 22. The body 21 is installed inside the second mounting position 13, and the emitting section 22 is installed inside the first mounting position 12. The gap between the two limiting blocks 141 is smaller than the diameter of the body 21. The air curtain fan 3 is installed on the cyclone lower cover 1, and the air outlet side of the air curtain fan 3 faces the air duct 11.

[0032] In this embodiment, the air duct 11 runs through the top and bottom of the cyclone lower cover 1, and the air curtain fan 3 is installed above the cyclone lower cover 1. When the air curtain fan 3 is working, the airflow generated enters the air duct 11 and is blown out from the bottom of the cyclone lower cover 1 to form an air curtain below the cyclone lower cover 1.

[0033] The first mounting position 12 and the second mounting position 13 are adjacent to and connected. The first mounting position 12 is located inside the air duct 11, and the second mounting position 13 is located outside the air duct 11 and on one side of the first mounting position 12 in the horizontal direction. The emitting section 22 of the negative ion emitter 2 can generate negative ions, which can be blown out of the air duct 11 with the airflow and mixed into the air of the cooking environment, thereby achieving the technical effects of eliminating odors and PM2.5.

[0034] The body 21 of the negative ion emitter 2 is installed at the second mounting position 13 outside the air duct 11, while the emission section 22 extends laterally into the first mounting position 12 inside the air duct 11. In this way, the negative ion emitter 2 can reduce the depth occupied by the air duct 11, and the emission section 22 will not extend outside the air duct 11, thereby avoiding the risk of electric shock caused by the user easily touching the emission section 22, thus improving the safety of the air curtain device.

[0035] The two limiting baffles 14 can limit the body 21 installed in the second mounting position 13. In particular, since the gap between the two limiting blocks 141 is smaller than the diameter of the body 21, it can effectively prevent the body 21 from leaving the second mounting position 13, and thus prevent the emitting section 22 from easily leaving the air duct 11, thereby improving the installation stability of the negative ion emitting head 2 on the cyclone lower cover 1.

[0036] The air curtain device with purification function of this utility model, such as Figure 5 As shown, the lower end of the limiting block 141 has an arc surface, and the arc surfaces on the two limiting blocks 141 are located on the same ring, and the diameter of the ring is adapted to the outer diameter of the body 21. The body 21 is cylindrical, and the arc surfaces of the two limiting blocks 141 are adapted to and abut against the circumference of the body 21, thereby increasing the contact area between the limiting blocks 141 and the body 21, thereby improving the limiting effect of the limiting blocks 141 on the body 21 and reducing the pressure on the body 21 to prevent the body 21 from being easily damaged or deformed by force.

[0037] The air curtain device with purification function of this utility model, such as Figure 5 As shown, the lower cover 1 of the cyclone is also provided with a mounting cavity 15, and a limiting baffle 14 is provided in the mounting cavity 15. The main body 21 is installed in the mounting cavity 15, and the limiting baffle 14 can prevent the main body 21 from leaving the mounting cavity 15. The mounting cavity 15 can hide and protect the main body 21, preventing the main body 21 from being easily bumped by other parts in the smoke machine, so as to ensure the working stability of the negative ion emitter 2.

[0038] The air curtain device with purification function of this utility model, such as Figure 5 As shown, the mounting cavity 15 has a wire notch 151 on the side away from the first mounting position 12, and the connecting wire of the negative ion emitter 2 is led out of the mounting cavity 15 through the wire notch 151.

[0039] The negative ion emitter 2 is electrically connected to the main control board of the range hood via a connecting cable, enabling the main control board to provide power to the negative ion emitter 2 and transmit control signals. Specifically, the connecting cable is electrically connected to the main body 21. Therefore, one end of the connecting cable can be electrically connected to the main body 21 inside the mounting cavity 15, and the other end is led out of the mounting cavity 15 through the lead wire notch 151 to be electrically connected to the main control board of the range hood. The lead wire notch 151 is located on the side of the first mounting position 12 away from the mounting cavity 15. After the connecting cable is led out of the mounting cavity 15 from the lead wire notch 151, it can be kept as far away from the first mounting position 12 as possible to prevent the connecting cable from interfering with the air curtain fan 3.

[0040] The air curtain device with purification function of this utility model, such as Figures 4 to 7 As shown, the air duct 11 is provided with several grilles 111, forming an air passage between the grilles 111. The first mounting position 12 is located on the grille 111 closest to the second mounting position 13. The grilles 111 can guide and rectify the airflow passing through the air duct 11, allowing the airflow to flow out of the air duct 11 more evenly and stably, so as to form a more uniform and stable air curtain below the cyclone cover 1. The grille 111 closest to the second mounting position 13 is provided with a clearance opening, which forms the first mounting position 12. The emitting section 22 of the negative ion emitter 2 extends into the air duct 11 and is located inside the clearance opening, thereby avoiding interference between the grille 111 and the emitting section 22, and improving the installation stability of the negative ion emitter 2.

[0041] The air curtain device with purification function of this utility model, such as Figure 5 As shown, the air duct 11 is also provided with a diffusion channel 112, which extends downward through the grille 111. The first mounting position 12 extends through the wall on the corresponding side of the diffusion channel 112, and the emitting section 22 extends into the diffusion channel 112. The diffusion channel 112 allows the negative ions generated by the emitting section 22 to diffuse laterally as they flow downward with the airflow, thereby enabling the negative ions to diffuse more quickly and widely in all directions after leaving the air duct 11 and entering the cooking environment, thus improving the effect of the negative ions.

[0042] The air curtain device with purification function of this utility model, such as Figures 4 to 7 As shown, the air curtain device with purification function also includes a decorative cover 4, which is snapped into the diffusion channel 112. The bottom surface of the decorative cover 4 is flush with the lower edge of the grille 111, and a diffusion hole 41 is provided on the bottom surface of the decorative cover 4.

[0043] The bottom surface of the decorative cover 4 is exposed at the bottom of the cyclone lower cover 1. The decorative cover 4 can shield and decorate the emission section 22. Users can directly observe the bottom surface of the decorative cover 4 from the outside, and thus clearly know the installation position of the negative ion emitter 2. In this way, the entire air curtain device can ensure that users can easily find and clearly identify the position of the negative ion emitter 2 without sacrificing the overall aesthetics of the product.

[0044] like Figure 6 As shown, this utility model also proposes a range hood with an air curtain device with purification function as described above. The range hood body 5 includes an electric control cavity 51. The bottom of the electric control cavity 51 is provided with an air curtain outlet 52 that communicates with the electric control cavity 51. The range hood body 5 is also provided with an air inlet channel that communicates with the electric control cavity 51. The air curtain device is installed in the electric control cavity 51, and the air outlet side of the air duct 11 is aligned with the air curtain outlet 52.

[0045] By installing the air curtain device inside the electrical control cavity 51 of the main body 5 of the smoke machine, the air curtain fan 3 can introduce the airflow outside the smoke machine through the air inlet channel, and blow it out of the smoke machine through the air outlet side of the air curtain fan 3, the air duct 11 of the cyclone lower cover 1 and the air curtain outlet 52 in sequence, so as to form an air curtain below the air curtain outlet 52.

[0046] The smoke hood of this utility model, such as Figures 6 to 7 As shown, the main body 5 of the range hood has a cover plate 53. The portion of the cover plate 53 above the electrical control cavity 51 has an air curtain inlet 531. The air curtain device draws air in through the air curtain inlet 531 and exhausts air through the air curtain outlet 52 to form an air curtain. When the air curtain device is working, the air curtain fan 3 starts, and the airflow above the cover plate 53 is drawn into the electrical control cavity 51 through the air curtain inlet 531. The airflow then flows sequentially through the outlet side of the air curtain fan 3, the air duct 11 of the lower cover 1, and the air curtain outlet 52 before being blown out of the range hood, forming an air curtain below the air curtain outlet 52. The cover plate 53 is detachably installed on the electrical control cavity 51. When maintenance of the air curtain device is required, the cover plate 53 can be removed to expose the electrical control cavity 51, thus simplifying the maintenance process.

[0047] The smoke hood of this utility model, such as Figures 8 to 9 As shown, an air curtain bracket 6 is provided on the bottom plate of the electrical control cavity 51. Connecting plates 61 are provided at both ends of the front side of the air curtain bracket 6. The connecting plates 61 are provided with first connecting holes 611. A snap-fit ​​plate 62 is provided on the rear side of the air curtain bracket 6. The snap-fit ​​plate 62 is provided with a snap-fit ​​groove. The cyclone lower cover 1 is placed on the bottom plate of the electrical control cavity 51. A snap-fit ​​position 16 is provided on its rear side. The snap-fit ​​position 16 snaps into the snap-fit ​​groove. Connecting seats 31 are provided at both ends of the front side of the air curtain fan 3. The connecting seats 31 are provided with second connecting holes 311. Screws pass through the second connecting holes 311 and the first connecting holes 611 to connect the connecting seats 31 to the corresponding connecting plates 61.

[0048] When the air curtain device is installed in the electrical control cavity 51, the snap-fit ​​position 16 of the cyclone lower cover 1 snaps into the slot on the rear side of the air curtain bracket 6, thereby achieving the snap-fit ​​fixation between the cyclone lower cover 1 and the air curtain bracket 6, and simultaneously achieving the pre-fixation of the entire air curtain device to the air curtain bracket 6. After the cyclone lower cover 1 and the air curtain bracket 6 are snapped into place, the second connecting hole 311 of the connecting seat 31 of the air curtain fan 3 is aligned with the first connecting hole 611 of the connecting plate 61 of the air curtain bracket 6. The first connecting hole 611 and the second connecting hole 311 are connected in series with screws to achieve the fixed connection between the connecting plate 61 and the connecting seat 31, thereby fixing the air curtain bracket 6 and the air curtain fan 3 together. In other words, both the air curtain fan 3 and the cyclone lower cover 1 can establish a connection with the air curtain bracket 6, and the connection positions of the two with the air curtain bracket 6 are distributed on the front and rear sides of the air curtain bracket 6. This effectively improves the stability of the air curtain device's fixed installation on the air curtain bracket 6.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An air curtain device with purification function, used in a smoke hood, characterized in that, include: A cyclone lower cover (1) is provided with an air duct (11) which runs vertically through the cyclone lower cover (1). The cyclone lower cover (1) is provided with a first mounting position (12), a second mounting position (13) and a limiting baffle (14). The first mounting position (12) is located inside the air duct, and the second mounting position (13) is located outside the air duct (11) and between the two limiting baffles (14). Limiting blocks (141) are provided on the surfaces of the limiting baffles (14) that are close to each other. The negative ion emitter (2) includes a body (21) and an emitting segment (22). The body (21) is installed in the second mounting position (13), and the emitting segment (22) is installed in the first mounting position (12). The gap between the two limiting blocks (141) is smaller than the diameter of the body (21). An air curtain fan (3) is installed on the lower cover (1) of the cyclone, and the air outlet side of the air curtain fan (3) faces the air duct (11).

2. The air curtain device with purification function according to claim 1, characterized in that, The lower end of the limiting block (141) is provided with an arc surface, and the arc surfaces on the two limiting blocks (141) are located on the same ring, and the diameter of the ring is adapted to the outer diameter of the body (21).

3. The air curtain device with purification function according to claim 1, characterized in that, The lower cover (1) of the cyclone is also provided with an installation cavity (15), and the limiting baffle (14) is provided in the installation cavity (15).

4. The air curtain device with purification function according to claim 3, characterized in that, The mounting cavity (15) is provided with a wire passage notch (151) on the side away from the first mounting position (12), and the connecting wire of the negative ion emitter (2) is led out of the mounting cavity (15) through the wire passage notch (151).

5. The air curtain device with purification function according to claim 1, characterized in that, The air duct (11) is provided with a plurality of grilles (111), and the grilles (111) form an air passage. The first mounting position (12) is located on the grille (111) closest to the second mounting position (13).

6. The air curtain device with purification function according to claim 5, characterized in that, The air duct (11) is also provided with a diffusion channel (112), which penetrates downward through the grille (111), the first mounting position (12) penetrates the wall on the corresponding side of the diffusion channel (112), and the emission section (22) extends to the diffusion channel (112).

7. The air curtain device with purification function according to claim 6, characterized in that, It also includes a decorative cover (4), which is snapped into the diffusion channel (112). The bottom surface of the decorative cover (4) is flush with the lower edge of the grille (111), and a diffusion hole (41) is provided on the bottom surface of the decorative cover (4).

8. A range hood, comprising an air curtain device with purification function as described in any one of claims 1 to 7, characterized in that, The system includes a main body (5) of a range hood, which has an electrical control cavity (51). The bottom of the electrical control cavity (51) is provided with an air curtain outlet (52) that communicates with the electrical control cavity (51). The main body (5) of the range hood is also provided with an air inlet channel that communicates with the electrical control cavity (51). The air curtain device is installed in the electrical control cavity (51). The air outlet side of the air duct (11) is aligned with the air curtain outlet (52).

9. The range hood according to claim 8, characterized in that, The main body (5) of the smoke machine has a cover plate (53). The part of the cover plate (53) above the electrical control cavity (51) is provided with an air curtain inlet hole (531). The air curtain device draws air through the air curtain inlet hole (531) and exhausts air through the air curtain outlet (52) to form an air curtain.

10. The smoke hood according to claim 8, characterized in that, The bottom plate of the electrical control cavity (51) is provided with an air curtain bracket (6). The front two ends of the air curtain bracket (6) are provided with connecting plates (61). The connecting plates (61) are provided with first connecting holes (611). The rear side of the air curtain bracket (6) is provided with a snap-fit ​​plate (62). The snap-fit ​​plate (62) is provided with a snap-fit ​​groove. The cyclone lower cover (1) is placed on the bottom plate of the electrical control cavity (51). The rear side of the cover is provided with a snap-fit ​​position (16). The snap-fit ​​position (16) is snapped into the snap-fit ​​groove. The front two ends of the air curtain fan (3) are provided with connecting seats (31). The connecting seats (31) are provided with second connecting holes (311). Screws pass through the second connecting holes (311) and the first connecting holes (611) to connect the connecting seats (31) to the corresponding connecting plates (61).

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