CN220958586U - Refrigerating type range hood - Google Patents

Abstract

The utility model provides a refrigeration formula range hood, including the range hood module, a compressor, heat dissipation module and interior machine module, the range hood module is including the range hood fan, heat dissipation module and interior machine module locate the range hood fan outside, the range hood fan includes the spiral case, impeller and volute tongue, it has the vent to open on the spiral case rampart, heat dissipation module's heat dissipation fan air outlet and vent fluid communication, install the wind-guiding apron that is used for leading into the inside wind-guiding of spiral case with the hot-blast that the heat dissipation fan blows out in vent department, the perpendicular distance between the border that is closest to the impeller on the wind-guiding apron and the impeller outer peripheral face is L1, perpendicular distance between the border that the volute tongue is closest to the impeller and the impeller outer peripheral face is L2 and satisfies |L1-L2| and is less than or equal to 6mm. The refrigeration type range hood utilizes the negative pressure generated by the rotation of the fan of the range hood to suck hot air into the volute of the range hood, improves the working efficiency of the heat dissipation fan, blows the hot air into the volute to clean greasy dirt on the inner wall of the volute, and meanwhile, the air flow in the volute of the fan cannot overflow from the vent.

Description

Refrigerating type range hood

Technical Field

The utility model relates to a range hood, in particular to a refrigeration type range hood.

Background

Various refrigeration type range hoods are disclosed in the prior art, an air conditioning component is added on the basis of a range hood platform, a compressor, a condenser and an evaporator are communicated through refrigerant pipelines, and the refrigeration type range hood can realize all functions of the range hood and can realize functions of an air conditioner. In the daily use process of the refrigeration range hood, a large amount of oil dirt can be remained on the spiral case and the impeller, and the oil dirt can form a hard grease layer on the spiral case and the impeller after long-time air drying and solidification, so that the oil dirt is very difficult to clean. At present, the traditional range hood on the market often has no cleaning function, and even if the cleaning function is increased, the water pump and the heating rod are simply increased to heat, spray and clean the externally added water, so that additional parts are required to be added, and the reliability of the whole range hood is reduced. Meanwhile, a water source is required to be added through the outside, so that the complexity is increased. Although, there is also disclosed a range hood using condensate water to clean a volute, such as the 'air-conditioning type' disclosed in chinese patent No. 202220018984.6 (issued publication No. CN 217004584U), a water collecting box for collecting condensate water condensed on the surface of an evaporator is disposed in a casing of the range hood, a steam generator is mounted in the casing, the water collecting box is communicated with a water inlet of the steam generator through a water outlet pipe, and a steam outlet of the steam generator is communicated with an air duct in the range hood. The air conditioner comdenstion water gets into the range hood inside after steam generator evaporates, and high temperature steam washs the impeller through fan impeller, and although this air conditioner formula range hood utilizes the comdenstion water to wash fan impeller, nevertheless need utilize the steam generator in casing inside to heat the comdenstion water, not only the structure is complicated, has still increased the cost moreover, does not obtain effective utilization to the heat that the air conditioner during operation condenser produced.

Disclosure of utility model

The utility model aims to solve the technical problem of providing the refrigeration type range hood capable of effectively sucking hot air blown out by a heat radiation fan into the interior of a volute to clean the volute.

The technical scheme adopted for solving the technical problems is as follows: this refrigeration formula range hood, including oil smoke absorption module, compressor, heat dissipation module and interior machine module, oil smoke absorption module is including the oil smoke ventilator, compressor, heat dissipation module and interior machine module are linked together through the refrigerant pipeline, the outside of oil smoke ventilator is located to heat dissipation module and interior machine module, oil smoke ventilator is including spiral case, impeller and install on spiral case rampart and be close to the volute tongue of fan air outlet, its characterized in that: the air guide cover plate is arranged at the air vent, the vertical distance between the edge closest to the impeller and the peripheral surface of the impeller on the air guide cover plate is L1, the vertical distance between the edge closest to the impeller and the peripheral surface of the impeller on the tongue is L2, and the requirements of L1-L2I are met and are less than or equal to 6mm.

Preferably, the vent is arranged at the front section of the volute annular wall and is close to the root of the volute tongue, and the air guide cover plate is arranged at the front side edge of the vent. The ventilation opening is arranged at the position, so that hot air blown out by the heat radiation module can smoothly enter the volute, and meanwhile, when the back pressure exists at the air outlet of the fan, the air in the volute can be prevented from overflowing from the ventilation opening.

The air guiding cover plate can have various structures, and preferably, the air guiding cover plate comprises a mounting part and a guide plate, wherein the mounting part is arranged at the front side edge of the ventilation opening, and the guide plate extends from the mounting part to the direction far away from the volute tongue. By the arrangement, the guide plate can play an effective guide role.

In order to install the air guide cover plate between the oil smoke sucking fan and the heat dissipation fan, preferably, the installation part is provided with a tiger mouth, the front side edge of the ventilation opening is arranged in the tiger mouth, and the upper edge of the tiger mouth is installed on the volute annular wall of the heat dissipation fan.

Further preferably, the molded line of the volute casing wall between the root of the volute tongue and the front side edge of the ventilation opening is an involute, and the involute is gradually opened outwards from the root of the volute tongue.

In order to ensure that the lowest point of the volute tongue and the lowest point of the guide plate are positioned on the same concentric circle of the impeller, the lower edge of the tiger mouth intersects with the volute annular wall at a point O, the included angle between the tangent line of the volute annular wall passing through the point O and the guide plate is A, and the length of the guide plate is B, wherein the length of the guide plate is B, the B increases along with the decrease of the A, and the B decreases along with the increase of the A.

Further preferably, the perpendicular distance between the point O and the impeller outer circumferential surface is C, and the value of C increases as a decreases and decreases as a increases.

In order to enable the guide plate to play roles in guiding air flow and reducing pneumatic noise, the edge of the guide plate facing the ventilation opening is provided with a concave-convex structure.

The relief structure may take a variety of forms, preferably it is saw tooth or sine wave shaped. The concave-convex structure is not limited to the above two shapes, and other shapes may be adopted.

In order to enable air flow blown out by the heat dissipation fan to smoothly enter the oil fume suction fan, the oil fume suction fan and the heat dissipation fan are centrifugal fans, and the impeller central shaft of the oil fume suction fan is parallel to the impeller central shaft of the heat dissipation fan.

Preferably, the oil fume suction module comprises an upper box body and an air inlet body arranged at the bottom of the upper box body, the oil fume suction fan is arranged in the upper box body, and a fume inlet communicated with an air inlet of the oil fume suction fan is formed in the air inlet body.

The compressor and the internal machine module can have various mounting structures, preferably, the compressor is mounted above the air inlet body and positioned on the left side or the right side of the upper box body, and the internal machine module is arranged above the compressor.

The heat dissipation module can have various mounting structures, preferably, the heat dissipation module is arranged at the top of the upper box body, the heat dissipation fan is arranged above the oil fume suction fan, and the air outlet of the heat dissipation fan faces downwards and faces the ventilation opening.

The heat dissipation module and the inner machine module can have a plurality of mounting structures, preferably, the heat dissipation module comprises a condenser and the heat dissipation fan, the inner machine module comprises an evaporator and the inner machine fan, the heat dissipation module and the inner machine module are adjacently arranged, and the heat dissipation module and the inner machine module share an air inlet.

In order to enable cold air to be blown out through the air outlet of the inner machine, the upper box body or the air inlet body is provided with the air outlet of the inner machine, and the air outlet of the inner machine fan is in fluid communication with the air outlet of the inner machine through an air guide channel.

Compared with the prior art, the utility model has the advantages that: according to the refrigeration type range hood, the ventilation opening is formed in the annular wall of the volute of the range hood, the air outlet of the heat radiation fan is in fluid communication with the ventilation opening, the vertical distance L1 between the edge closest to the impeller on the air guide cover plate and the peripheral surface of the impeller and the vertical distance L2 between the edge closest to the impeller and the peripheral surface of the impeller are close to or equal to each other, the L1-L2I is less than or equal to 6mm, accordingly, the air blown by the heat radiation fan can be ensured to smoothly enter the volute of the fan, the air is sucked into the volute of the range hood by utilizing the negative pressure generated by rotation of the range hood fan, the working efficiency of the heat radiation fan is improved, the oil stain on the inner wall of the volute can be cleaned by the air blown into the volute, and meanwhile, under the condition that the back pressure exists at the outlet of the range hood, the air flow in the volute of the fan cannot overflow from the ventilation opening, and adverse effect on the range hood can not be caused.

Drawings

Fig. 1 is a schematic structural view of a range hood according to an embodiment of the present utility model;

Fig. 2 is a side view of a range hood according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram illustrating the connection of an air conditioning assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an installation structure of an air guiding cover plate according to an embodiment of the present utility model;

FIG. 5 is a schematic view illustrating a structure of an air guiding cover plate according to an embodiment of the present utility model;

FIG. 6 is a schematic view of another mounting structure of an air guiding cover plate according to an embodiment of the present utility model;

Fig. 7 is a schematic view of another installation structure of an air guiding cover plate according to an embodiment of the utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

As shown in fig. 1 to 3, the refrigerating range hood of the present embodiment includes a range hood module 1, a compressor 2, a heat dissipation module 3 and an inner hood module 4, the range hood module 1 includes a range hood fan 11, an upper box 12 and an air inlet body 13, the range hood fan 11 is installed in the upper box 12, the air inlet body 13 is installed at the bottom of the upper box 12, and a smoke inlet communicated with an air inlet of the range hood fan 11 is opened on the air inlet body 13. The fume exhaust fan 11 is a centrifugal fan and comprises a volute 111, an impeller 112 and a volute tongue 113, wherein the volute tongue 113 is arranged on a volute annular wall 115 and is close to a fan air outlet.

The compressor 2 is installed above the air inlet body 13 and on the right side of the upper box body 12, and the internal machine module 4 is arranged above the compressor 2. The heat dissipation module 3 is arranged at the top of the upper box 12, the heat dissipation module 3 and the inner machine module 4 are adjacently arranged, and the heat dissipation module 3 and the inner machine module 4 share an air inlet. The heat radiation module 3 comprises a condenser 32 and a heat radiation fan 31, the inner machine module 4 comprises an evaporator 42 and an inner machine fan 41, and the compressor 2, the condenser 32 and the evaporator 42 are communicated through a refrigerant pipeline 5. The compressor 2, the condenser 32 and the evaporator 42 constitute an air conditioning assembly, and the specific operation principle thereof is the same as that of the existing air conditioner, and will not be described again. An inner machine air outlet 43 is formed in the upper portion of the air inlet body 13, an air outlet of the inner machine fan 41 is in fluid communication with the inner machine air outlet 43 through an air guide channel 44, and cold air is blown out from the inner machine air outlet 43 when the air conditioner works in a refrigerating mode, so that cooking experience of a user is improved.

The heat dissipation fan 31 of the present embodiment is a centrifugal fan, and the impeller center axis of the heat dissipation fan 31 is parallel to the impeller center axis of the oil smoke absorbing fan 11. The volute annular wall 115 of the fume exhaust fan 11 is provided with a vent 114, the heat dissipation fan 31 is arranged above the fume exhaust fan 11, the air outlet of the heat dissipation fan 31 faces downwards and faces the vent 114, and the air outlet of the heat dissipation fan 31 is in fluid communication with the vent 114.

As shown in fig. 4 to 7, in this embodiment, the ventilation opening 114 is formed at the front section of the annular wall 115 of the volute and is close to the root of the volute tongue 113, when there is back pressure at the outlet of the smoke machine, the wind in the volute 111 will not overflow from the ventilation opening 114, and the position of the ventilation opening 114 needs to be as close to the volute tongue 113 as possible at 1/4 of the front section of the annular wall. In this embodiment, the profile of the volute sidewall 115 between the root of the volute tongue 113 and the front edge of the vent 114 is an involute, and the involute gradually flares outward from the root of the volute tongue 113.

The air guide cover plate 6 is installed at the air vent 114, and the air guide cover plate 6 not only guides the hot air blown out by the heat radiation fan 31 into the scroll casing 111, but also prevents the air in the scroll casing 111 from overflowing outwards through the air vent 114.

The air guiding cover plate 6 of the present embodiment includes a mounting portion 61 and a guide plate 62, the mounting portion 61 has a tiger mouth 611, the front edge of the ventilation opening 114 is disposed in the tiger mouth 611, and the upper edge of the tiger mouth 611 is mounted on the volute wall 311 of the heat dissipation fan 31, that is, the mounting portion 61 is mounted between the oil smoke exhaust fan 11 and the heat dissipation fan 31. The baffle 62 extends rearwardly from the mounting portion 61 in a direction away from the volute tongue 113. In order to guide the air flow and reduce the aerodynamic noise, the edge of the baffle plate 62 facing the ventilation opening 114 is formed with a concave-convex structure 621, and the concave-convex structure 621 has a saw-tooth shape or a sine wave shape, and can also have other structures.

Assuming that the vertical distance between the edge closest to the impeller 112 and the outer peripheral surface of the impeller 112 on the air guiding cover plate 6 is L1, the vertical distance between the edge closest to the impeller 112 of the volute tongue 113 and the outer peripheral surface of the impeller 112 is L2, and L1 and L2 are satisfied to be close to or equal to each other, for example |l1-l2|+.6mm, preferably l1=l2 is satisfied.

As shown in fig. 7, the lower edge of the tiger mouth 611 intersects the volute annular wall 115 at a point O, an included angle a between a tangent line of the volute annular wall 115 passing through the point O and the deflector 62 is not easy to be too large or too small, if the included angle a is too large, noise of the oil smoke exhaust fan 11 is increased, user experience is reduced, if the included angle a is too small, airflow inside the volute 111 is easy to overflow from the ventilation opening 114, the oil smoke exhaust effect is affected, and the included angle a is generally between 10 ° and 50 °. The length of the deflector 62 is B, the value of B is related to the included angle A, and also is related to the position of the vent 114 of the annular wall 115 of the volute, the smaller the included angle A value is, the larger the size B value is, so that the negative pressure at the vent 114 of the annular wall can be ensured, and the hot wind energy is naturally sucked into the volute 11 from the vent 114 of the annular wall to clean the volute 11; conversely, based on the same volute, the closer the vent 114 is located to the volute tongue 113, at which point, to ensure l1=l2, the angle a increases and correspondingly the value B decreases. The size B value is generally between 10mm and 60mm, and is required to be selected according to the actual state. Further, if the vertical distance between the point O and the outer peripheral surface of the impeller 112 is C, the C value increases as a decreases, and decreases as a increases. The included angle A1, the values B1 and C1 are paired values. The included angle A2 and the value B2 are paired values. Wherein A1 is less than A2, and B1 is more than B2.

In the description and claims of the present utility model, terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "side", "top", "bottom", etc., are used to describe various example structural parts and elements of the present utility model, but these terms are used herein for convenience of description only and are determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the utility model may be arranged in a variety of orientations, the directional terminology is used for purposes of illustration and is in no way limiting, such as "upper" and "lower" are not necessarily limited to being in a direction opposite or coincident with the direction of gravity.

The term "fluid communication" as used herein refers to a spatial positional relationship between two parts or portions, hereinafter collectively referred to as a first portion and a second portion, respectively, that is, a fluid gas, a liquid, or a mixture of both can flow along a flow path from the first portion to the second portion, or can be directly communicated with each other between the first portion and the second portion, or can be indirectly communicated with each other between the first portion and the second portion through at least one third member, which can be a fluid channel such as a pipe, a channel, a conduit, a flow guide, a hole, a groove, or the like, or can be a chamber allowing a fluid to flow through, or a combination thereof.

Claims (14)

1. The utility model provides a refrigeration formula range hood, is including oil smoke absorption module (1), compressor (2), heat dissipation module (3) and interior machine module (4), oil smoke absorption module (1) is including oil smoke absorption fan (11), compressor (2), heat dissipation module (3) and interior machine module (4) are linked together through refrigerant pipeline (5), the outside of oil smoke absorption fan (11) is located in heat dissipation module (3) and interior machine module (4), oil smoke absorption fan (11) are including spiral case (111), impeller (112) and install on spiral case rampart (115) and be close to volute tongue (113) of fan air outlet, its characterized in that: the oil fume suction fan is characterized in that a vent (114) is formed in a volute annular wall (115) of the oil fume suction fan (11), the heat radiation module (3) is provided with a heat radiation fan (31), an air outlet of the heat radiation fan (31) is in fluid communication with the vent (114), an air guide cover plate (6) used for guiding hot air blown by the heat radiation fan (31) into the volute is arranged at the vent (114), the vertical distance between the edge closest to the impeller (112) on the air guide cover plate (6) and the peripheral surface of the impeller (112) is L1, and the vertical distance between the edge closest to the impeller (112) and the peripheral surface of the impeller (112) of the volute tongue (113) is L2, and the requirements of L1-L2 are less than or equal to 6mm.

2. The refrigerated extractor hood of claim 1 wherein: the ventilation opening (114) is arranged at the front section of the volute annular wall (115) and is close to the root of the volute tongue (113), and the air guide cover plate (6) is arranged at the front side edge of the ventilation opening (114).

3. A refrigerated extractor hood according to claim 2, characterized in that: the air guide cover plate (6) comprises an installation part (61) and a guide plate (62), the installation part (61) is installed at the front side edge of the ventilation opening (114), and the guide plate (62) extends from the installation part (61) to a direction far away from the volute tongue (113).

4. A refrigerated extractor hood according to claim 3, characterized in that: the mounting part (61) is provided with a tiger mouth (611), the front side edge of the vent (114) is arranged in the tiger mouth (611), and the upper edge of the tiger mouth (611) is mounted on the volute wall (311) of the heat radiation fan (31).

5. The refrigerated extractor hood of claim 4 wherein: the molded line of the volute annular wall (115) between the root of the volute tongue (113) and the front side edge of the ventilation opening (114) is an involute, and the involute is gradually opened outwards from the root of the volute tongue (113).

6. The refrigerated extractor hood of claim 4 wherein: the lower edge of the tiger mouth (611) is intersected with the volute annular wall (115) at a point O, an included angle between a tangent line of the volute annular wall (115) passing through the point O and the guide plate (62) is A, and the length of the guide plate (62) is B, wherein B increases along with the decrease of A, and B decreases along with the increase of A.

7. The refrigerated extractor hood of claim 6 wherein: when the vertical distance between the point O and the outer peripheral surface of the impeller (112) is C, the value of C increases as A decreases, and decreases as A increases.

8. A refrigerated extractor hood according to claim 3, characterized in that: the edge of the guide plate (62) facing the ventilation opening (114) is provided with a concave-convex structure (621).

9. The refrigerated extractor hood of claim 8 wherein: the concave-convex structure (621) is in a saw-tooth shape or a sine wave shape.

10. A refrigerated fume extractor according to any of claims 1 to 9 wherein: the oil fume suction module (1) comprises an upper box body (12) and an air inlet body (13) arranged at the bottom of the upper box body (12), the oil fume suction fan (11) is arranged in the upper box body (12), and a fume inlet communicated with an air inlet of the oil fume suction fan (11) is formed in the air inlet body (13).

11. The refrigerated extractor hood of claim 10 wherein: the compressor (2) is arranged above the air inlet body (13) and is positioned on the left side or the right side of the upper box body (12), and the inner machine module (4) is arranged above the compressor (2).

12. The refrigerated extractor hood of claim 10 wherein: the heat dissipation module (3) is arranged at the top of the upper box body (12), the heat dissipation fan (31) is arranged above the oil fume suction fan (11), and an air outlet of the heat dissipation fan (31) faces downwards and faces the ventilation opening (114).

13. The refrigerated extractor hood of claim 12 wherein: the heat dissipation module (3) comprises a condenser (32) and the heat dissipation fan (31), the inner machine module (4) comprises an evaporator (42) and an inner machine fan (41), the heat dissipation module (3) and the inner machine module (4) are adjacently arranged, and the heat dissipation module (3) and the inner machine module (4) share an air inlet.

14. The refrigerated extractor hood of claim 13 wherein: an inner machine air outlet (43) is formed in the upper box body (12) or the air inlet body (13), and the air outlet of the inner machine fan (41) is in fluid communication with the inner machine air outlet (43) through an air guide channel (44).