Air guide structure and air-conditioning type range hood provided with same

Abstract

The air guide structure comprises a long-strip-shaped air outlet frame, the air outlet frame is provided with an air inlet and an air outlet, the air outlet is formed in the front side of the air outlet frame and extends in the length direction of the air outlet frame, a sinking main air duct is formed in the air outlet frame and is arranged below the rear portion of the air outlet, and the sinking main air duct is arranged below the air outlet. The air inlet is formed in the rear side of the air outlet frame and located at the end of the air outlet frame, the air inlet communicates with the first end of the sinking main air duct through an air guide duct, the air guide duct is provided with an air guide outlet, and the air guide duct guides airflow entering from the air inlet to the second end of the sinking main air duct through the air guide outlet. The air guide duct of the air guide structure guides airflow entering from the air inlet to the second end of the sinking main air duct through the air guide outlet, so that the airflow can be uniformly blown out from the air outlet, the air guide structure is mounted on the range hood body, the air outlet distance is short, the air outlet temperature attenuation is small, and the low-temperature perception is obvious; and the air guide structure does not need to be fixed with the cabinet, so that the installation is simpler.

Description

Technical Field

[0001] The invention relates to a range hood, in particular to an air guide structure and an air-conditioning type range hood equipped with the air guide structure. Background Art

[0002] Various refrigeration range hoods are disclosed in the prior art. On the basis of the range hood platform, an air conditioning module is added. The air conditioning module includes a compressor, a heat dissipation module and an internal unit module. When working in the refrigeration mode, the internal unit module blows out cold air, and the cold air blows toward the cook to enhance the cooking experience. The current integrated kitchen refrigeration range hood generally sets the air outlet on the upper edge of the cabinet door, so that the air outlet is embedded in the cabinet. The air outlet frame needs to be installed separately on the upper edge of the cabinet and cannot be installed together with the range hood. The air outlet is set on the upper edge of the cabinet door, and the air outlet is relatively high. Due to the angle, the user standing in front of the range hood cannot be blown by the cold air or blows on the head, which is less comfortable. In addition, the air outlet is far away from the user, so that the user perceives a higher air outlet temperature, no cool feeling, and poor physical examination. In addition, the existing air outlet generally controls the air outlet direction by swinging the wind up and down on the air guide plate. The width of the air outlet is generally within 500mm, there is no left and right air guide mechanism, the air outlet area is narrow, and the air outlet width is insufficient, which makes it difficult to blow cold air in the left and right directions. Another type of kitchen air-conditioning range hood has an air outlet above the range hood and exhausts air below the cabinet door. The cold air from the internal unit is transferred into the air outlet through a cold air duct from top to bottom and blown out. The cold air duct is too long from top to bottom, resulting in a large loss of cooling capacity. In addition, since the cold air duct will encroach on the air duct space of the range hood, the noise of the range hood will become louder, which will also have an adverse effect on the oil fume extraction effect. Summary of the invention

[0003] The first technical problem to be solved by the present invention is to provide an air guide structure with a long strip-shaped air outlet capable of evenly discharging air in response to the above-mentioned existing technical status.

[0004] The second technical problem to be solved by the present invention is to provide an air-conditioning type range hood with an air-conditioning outlet capable of evenly discharging air in response to the above-mentioned existing technical status.

[0005] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: the air guide structure includes a long strip of air outlet frame, the air outlet frame has an air inlet and an air outlet, and is characterized in that: the air outlet is arranged on the front side of the air outlet frame and extends along the length direction of the air outlet frame, a sinking main air duct is formed inside the air outlet frame, the sinking main air duct is arranged at the rear and lower part of the air outlet, the air inlet is arranged on the rear side of the air outlet frame and is located at the end of the air outlet frame, the air inlet is connected to the first end of the sinking main air duct through an air guide duct, the air guide duct has an air guide outlet, and the air guide duct can guide the airflow entering from the air inlet to the second end of the sinking main air duct through the air guide outlet.

[0006] The air guide duct can have a variety of structures. Preferably, the air guide duct includes a first air guide slope and a second air guide slope. The first air guide slope extends obliquely forward from the rear edge of the air inlet from top to bottom to the bottom of the sunken main air duct, and the second air guide slope is arranged obliquely from the left edge of the air inlet from top to bottom to the left.

[0007] In order to smoothly guide the wind flowing into the air inlet into the interior of the sunken main air duct, the inclination angle β of the first air guiding slope relative to the horizontal plane satisfies 30°≤β≤75°.

[0008] In order to smoothly guide the wind flowing into the air inlet to the other end of the downward main air duct, the inclination angle θ of the second air guiding slope (32) relative to the horizontal plane satisfies 30°≤θ≤60°.

[0009] In order to improve the uniformity of the air outlet, the height difference d between the lower edge of the air guide outlet and the lower edge of the air outlet satisfies -10mm≤d≤20mm. If the distance d is too large, the wind resistance is smaller, and it is easy for the wind to directly overflow outward after entering the sinking air duct, rather than being evenly distributed to both sides first. If the distance d is too small, the wind resistance is greater, making it difficult for the cold air to overflow from here, resulting in uneven air distribution.

[0010] In order to make the air volume of the air outlet as evenly distributed as possible, along the air flow direction of the downward main air duct, the inner bottom surface of the downward main air duct is gradually inclined from bottom to top.

[0011] Preferably, the height difference e between the lowest point and the highest point of the bottom surface of the downward main air duct satisfies 5mm≤e≤30mm. If the height difference e is too small, the cold air will flow to the bottom of the downward main air duct and rush out at the leftmost end. If it is too large, it will overflow in advance, resulting in insufficient air volume at the leftmost end.

[0012] In order to allow the air outlet frame to discharge air on the outer side of the side where the air inlet is located, a sinking side air duct is provided on the outer side of the first end of the sinking main air duct. The sinking side air duct is connected to the sinking main air duct, and the inner bottom surface of the sinking side air duct is higher than the inner bottom surface of the sinking main air duct.

[0013] In order to improve the uniformity of the air volume of the sinking side air duct, the height difference f between the inner bottom surface of the sinking side air duct and the inner bottom surface of the sinking main air duct satisfies 10mm≤f≤40mm. If the height difference f is too large, the diversion surface will increase, resulting in excessive flow into the sinking side air duct and uneven air volume. If it is too small, the diversion surface will be too small, and the flow into the sinking side air duct will be insufficient and the air volume will be uneven.

[0014] Further preferably, the inner bottom surface of the downward side air duct constitutes a diverter surface, and the projection of the air inlet in the vertical direction falls on the diverter surface. In this way, the inner bottom surface of the downward side air duct constitutes a diverter surface, and the wind entering the air inlet hits the diverter surface and then blows out from the air outlet at the corresponding position.

[0015] In order to allow the wind in the downward side wind duct to be blown out smoothly from the air outlet at the corresponding position, a guide surface inclined obliquely from bottom to top and forward is formed between the front edge of the diverter surface and the lower edge of the air outlet.

[0016] The technical solution adopted by the present invention to solve the above-mentioned second technical problem is: the air-conditioning type range hood comprises an upper box body, a fan frame is provided inside the upper box body, an air inlet body is installed at the lower part of the upper box body, a compressor, a heat dissipation module and an indoor unit module are installed inside the upper box body, the compressor, the heat dissipation module and the indoor unit module are connected by a refrigerant pipeline, the indoor unit module has an indoor unit air inlet and an indoor unit air outlet, and is characterized in that: the air guide structure is installed on the front side of the upper box body or the front side of the air inlet body, and the indoor unit air outlet is connected with the air inlet of the air guide structure through a conversion interface.

[0017] Further preferably, the indoor unit module is arranged on the right side of the fan frame, and the indoor unit air outlet is arranged above the air inlet of the air guide structure.

[0018] Further preferably, the air outlet of the internal unit is arranged directly above the air inlet of the air guide structure. In this way, the adapter can be a straight-through channel, and the air intake is smoother.

[0019] Compared with the prior art, the advantages of the present invention are: the interior of the air-guiding structure has a sunken main air duct arranged at the rear and lower part of the air outlet, the air inlet is arranged on the rear side of the air outlet frame, the air inlet and the first end of the sunken main air duct are communicated with each other through the air-guiding duct, and the air-guiding duct can guide the airflow entering the air inlet to the second end of the sunken main air duct through the air-guiding outlet, so that the airflow can be blown out from the air outlet evenly. The air-conditioning type range hood installs the air-guiding structure on the body, with a short air outlet distance, small air outlet temperature attenuation, obvious low temperature perception, and a good user experience. The air-guiding structure does not need to be fixed to the cabinet, and installation and maintenance are simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of an air guide structure according to an embodiment of the present invention;

[0021] Figure 2 for Figure 1 A schematic structural diagram of the air guide structure at another angle;

[0022] Figure 3 for Figure 1 A schematic structural diagram of the air guide structure at another angle;

[0023] Figure 4 for Figure 1 A structural cross-sectional view of the air guide structure shown;

[0024] Figure 5 for Figure 1 Another structural cross-sectional view of the wind guide structure shown;

[0025] Figure 6 A structural cross-sectional view of the air inlet of the air guide structure according to an embodiment of the present invention;

[0026] Figure 7 A schematic diagram of the installation structure of the air guide structure according to an embodiment of the present invention;

[0027] Figure 8 for Figure 7 The schematic diagram of the structure after removing the top plate of the air inlet body;

[0028] Fig. 9 It is a structural schematic diagram of an air-conditioning type range hood according to an embodiment of the present invention;

[0029] Fig.10 for Fig. 9 The structural cross-sectional view of the air-conditioning type range hood is shown. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below with reference to the accompanying drawings.

[0031] like Figures 1 to 6 As shown, the air guide structure of this embodiment includes a long strip air outlet frame 1, the air outlet frame 1 has an air inlet 11 and an air outlet 12, the air outlet 12 is arranged at the front side of the air outlet frame 1 and extends along the length direction of the air outlet frame 1, and a downward main air duct 2 is formed inside the air outlet frame 1. Figure 2The direction indicated by the middle arrow A is right, the sinking main air duct 2 is arranged at the rear lower part of the air outlet 12, the air inlet 11 is arranged at the rear side of the air outlet frame 1 and is located at the end of the air outlet frame 1, and the air inlet 11 is connected with the first end of the sinking main air duct 2 through the air guide duct 3. The air guide duct 3 includes a first air guide slope 31 and a second air guide slope 32, the first air guide slope 31 extends obliquely forward from the rear edge of the air inlet 11 from top to bottom to the bottom of the sinking main air duct 2, and the second air guide slope 32 is arranged obliquely from top to bottom to the left from the left edge of the air inlet 11, and the front side of the air guide duct 3 has an air guide outlet 30. After the first air guide slope 31 and the second air guide slope 32 are arranged, the airflow entering from the air inlet 11 is guided to the second end of the sinking main air duct 2 through the air guide outlet 30, that is, the airflow can flow through the entire sinking main air duct 2. In this embodiment, the inclination angle β of the first air guiding slope 31 relative to the horizontal plane satisfies 30°≤β≤75°, and the optimal angle is 60°. The inclination angle θ of the second air guiding slope 32 relative to the horizontal plane satisfies 30°≤θ≤60°, and the optimal angle is 45°. In addition, the length c of the second air guiding slope 32 in the length direction of the air outlet frame 1 is in the range of 20mm≤c≤150mm, and the optimal angle is 90mm. Under the adjustment allowed by the size, the larger the second air guiding slope 32, the better the air guiding effect, but if it is too large, it will occupy the oil fume suction cavity, resulting in the oil fume suction effect being affected.

[0032] like Figure 6 As shown, the height difference d between the lower edge of the air guide outlet 30 and the lower edge of the air outlet 12 satisfies -10mm≤d≤20mm, and the optimal value is 5mm. If the distance d is too large, the wind resistance is smaller, and it is easy for the wind to directly overflow outward after entering the sinking air duct, rather than being evenly distributed to both sides first. If the distance d is too small, the wind resistance is greater, making it difficult for the cold air to overflow from here, resulting in uneven air distribution.

[0033] like Figure 3 As shown, along the air flow direction of the sinking main air duct 2, the inner bottom surface of the sinking main air duct 2 is gradually inclined from bottom to top. The height difference e between the lowest point and the highest point of the inner bottom surface of the sinking main air duct 2 satisfies 5mm≤e≤30mm, and the optimal height difference is 12mm. If the height difference e is too small, the wind entering the air inlet 11 will flow along the sinking main channel 2 to the bottom and rush out at the leftmost end. If it is too large, it will overflow in advance, resulting in insufficient air volume at the leftmost end.

[0034] A sinking side duct 4 is provided on the outer side, i.e., the right side, of the first end of the sinking main air duct 2. The sinking side duct 4 is connected to the sinking main air duct 2. The inner bottom surface of the sinking side duct 4 is higher than the inner bottom surface of the sinking main air duct 2, and the height difference f satisfies 10mm≤f≤40mm, and the optimal height difference f is 23mm. If the height difference f is too large, the diversion surface will increase, resulting in excessive flow into the sinking side duct and uneven air volume. If the height difference f is too small, the diversion surface will be too small, resulting in insufficient flow into the sinking side duct 4 and uneven air volume. Figure 5As shown, the projection of the air inlet 11 in the vertical direction falls on the inner bottom surface of the sinking side air duct 4. The inner bottom surface of the sinking side air duct 4 forms a diverter surface 41, and the wind entering the air inlet 11 hits the diverter surface 41 and blows out from the air outlet 12 at the corresponding position. In addition, a guide surface 42 inclined obliquely from bottom to top and forward is formed between the front edge of the diverter surface 41 and the lower edge of the air outlet 12. The air entering the sinking side air duct 4 is guided by the guide surface 42 and blown out from the air outlet 12 at the corresponding position. Even the rightmost end of the air outlet frame 1 can also discharge air, so that the air outlet width of the air outlet 12 in the left and right directions is wider.

[0035] When the air guiding structure guides air, the air enters from the air inlet 11, passes through the air guiding channel 3, and then blows into the sinking main air duct 2 and the sinking side air duct 4 from top to bottom. The air will be evenly distributed along the left and right sides of the air outlet 12 in the sinking main air duct 2. Under the influence of wind pressure, the cold air overflows upward in the sinking main air duct 2 and the sinking side air duct 4, and is finally blown out at the air outlet 12.

[0036] like Figures 7 to 10 As shown, the air-conditioning range hood of this embodiment includes an upper box body (not shown in the figure), a fan frame 5 is provided inside the upper box body, an air inlet body 6 is installed at the lower part of the upper box body, a compressor 7, a heat dissipation module 8 and an indoor module 9 are installed inside the upper box body, the compressor 7, the heat dissipation module 8 and the indoor module 9 are all located outside the fan frame 5, the compressor 7, the heat dissipation module 8 and the indoor module 9 are connected through a refrigerant pipeline, the indoor module 9 has an indoor air inlet 91 and an indoor air outlet 92, the above structure is the same as the structure of the existing air-conditioning range hood, and the specific description is not repeated. The air guide structure of this embodiment is installed at the upper part of the front of the air inlet body 6, the air inlet 11 of the air guide structure is vertically upward, the indoor module 9 is installed on the right side of the fan frame 5, the indoor air outlet 92 is vertically downward and located directly above the air inlet 11, and the indoor air outlet 92 is connected to the air inlet 11 through the adapter 10. When the range hood is working in the cooling mode, air enters from the indoor air inlet 91, exchanges heat in the evaporator of the indoor module, enters the adapter 10 through the fan, and finally blows out the cold air through the air outlet 12 of the air guide structure. The function of the air guide structure is to allow the cold air entering the air inlet 11 to be blown out evenly in the length direction of the air outlet 12. In addition, the air outlet frame 1 is equipped with air guide blades, stepper motors and other components, which are used to adjust the air guide plate, guide the wind direction of the cold air, and improve comfort.

[0037] The air guide structure of this embodiment is installed on the air inlet body 6, with high integration. The air guide structure does not need to be fixed to the cabinet, and installation and maintenance are more convenient. The air outlet 12 of the air guide structure is closer to the cook, the air outlet distance is short, the air outlet temperature attenuation is small, the cold loss is small, and the low temperature perception is obvious. The width of the air outlet 12 of the air guide structure in the left and right directions can be designed to be equivalent to the width of the air inlet body 6, thereby covering a wider air outlet range. In addition, the cold air duct of the air-conditioning range hood does not occupy the range hood duct, which is the same as the duct of an ordinary range hood, and the ventilation of the parts is strong.

Claims

1. An air guide structure, comprising an elongated air outlet frame (1), wherein the air outlet frame (1) has an air inlet (11) and an air outlet (12), characterized in that: The air outlet (12) is arranged at the front side of the air outlet frame (1) and extends along the length direction of the air outlet frame (1); a sinking main air duct (2) is formed inside the air outlet frame (1); the sinking main air duct (2) is arranged at the rear and lower part of the air outlet (12); the air inlet (11) is arranged at the rear side of the air outlet frame (1) and is located at the end of the air outlet frame (1); the air inlet (11) is connected to the first end of the sinking main air duct (2) through an air guide duct (3); the air guide duct (3) has an air guide outlet (30); the air guide duct (3) can guide the airflow entering the air inlet (11) to the second end of the sinking main air duct (2) through the air guide outlet (30).

2. The air guide structure according to claim 1, characterized in that: The air guide duct (3) comprises a first air guide slope (31) and a second air guide slope (32), wherein the first air guide slope (31) extends obliquely forward from top to bottom from the rear edge of the air inlet (11) to the bottom of the sunken main air duct (2), and the second air guide slope (32) is arranged obliquely from top to bottom to the left from the left edge of the air inlet (11).

3. The air guide structure according to claim 2, characterized in that: The inclination angle β of the first wind guiding inclined surface (31) relative to the horizontal plane satisfies 30°≤β≤75°.

4. The air guide structure according to claim 3, characterized in that: The inclination angle θ of the second wind guiding inclined surface (32) relative to the horizontal plane satisfies 30°≤θ≤60°.

5. The air guide structure according to claim 1, characterized in that: A height difference d between a lower edge of the air guide outlet (30) and a lower edge of the air outlet (12) satisfies -10 mm ≤ d ≤ 20 mm.

6. The air guide structure according to claim 1, characterized in that: Along the air flow direction of the downward main air duct (2), the inner bottom surface of the downward main air duct (2) is arranged to be gradually inclined from bottom to top.

7. The air guide structure according to claim 6, characterized in that: The height difference e between the lowest point and the highest point of the inner bottom surface of the sunken main air duct (2) satisfies 5mm≤e≤30mm.

8. The wind guide structure according to any one of claims 1 to 7, characterized in that: A sinking side air duct (4) is provided on the outer side of the first end of the sinking main air duct (2); the sinking side air duct (4) is connected to the sinking main air duct (2); and the inner bottom surface of the sinking side air duct (4) is higher than the inner bottom surface of the sinking main air duct (2).

9. The air guide structure according to claim 8, characterized in that: The height difference f between the inner bottom surface of the downward-sinking side air duct (4) and the inner bottom surface of the downward-sinking main air duct (2) satisfies 10 mm ≤ f ≤ 40 mm.

10. The air guide structure according to claim 8, characterized in that: The inner bottom surface of the downward-sinking side air duct (4) forms a flow-dividing surface (41), and the projection of the air inlet (11) in the vertical direction falls on the flow-dividing surface (41).

11. The air guide structure according to claim 10, characterized in that: A flow guide surface (42) that tilts obliquely from bottom to top and forward is formed between the front edge of the diverter surface (41) and the lower edge of the air outlet (12).

12. The air guide structure according to claim 1, characterized in that: The air guide duct (3) and the air outlet frame (1) are an integrally formed structure.

13. An air-conditioning type range hood, comprising an upper box body, a fan frame (5) is arranged inside the upper box body, an air inlet body (6) is installed at the lower part of the upper box body, a compressor (7), a heat dissipation module (8) and an indoor module (9) are installed inside the upper box body, the compressor (7), the heat dissipation module (8) and the indoor module (9) are connected through a refrigerant pipeline, the indoor module (9) has an indoor air inlet (91) and an indoor air outlet (92), and is characterized in that: An air guide structure according to any one of claims 1 to 12 is installed on the front side of the upper box body or the front side of the air inlet body (6), and the indoor unit air outlet (92) is connected to the air inlet (11) of the air guide structure via a transfer interface (10).

14. The air-conditioning type range hood according to claim 13, characterized in that: The indoor unit module (9) is arranged on the right side of the fan frame (5), and the indoor unit air outlet (92) is arranged above the air inlet (11) of the air guide structure.

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