CN213243714U

CN213243714U - Fume exhaust fan

Info

Publication number: CN213243714U
Application number: CN202021800068.5U
Authority: CN
Inventors: 于克阳; 张鲁涛
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-05-18
Anticipated expiration: 2030-08-25

Abstract

The utility model discloses a range hood, fan in including the casing and setting up the casing, the fan includes the motor, its characterized in that: the range hood further comprises a heat dissipation device capable of reducing the temperature rise of the motor, the heat dissipation device comprises a first heat dissipation assembly capable of introducing outside air into the shell and a second heat dissipation assembly capable of exhausting the inside air of the shell to the outside of the shell, a heat dissipation channel is formed between the first heat dissipation assembly and the second heat dissipation assembly, and the motor is located on the heat dissipation channel. Compared with the prior art, the utility model has the advantages of: the temperature rise of the motor can be effectively reduced.

Description

Fume exhaust fan

Technical Field

The utility model relates to an oil smoke purifier, especially a range hood.

Background

The range hood is used as an essential kitchen appliance for each family, and has the functions of sucking oil smoke from an air inlet through an impeller rotating at a high speed in a volute, filtering the oil smoke by using the impeller, and discharging the filtered oil smoke from an air outlet to finish the purification work of kitchen air.

The invention discloses a direct current frequency conversion stepless speed regulation range hood, which comprises a range hood shell, a fan arranged in the range hood shell and an electric control part, wherein the electric control part mainly comprises an operation control panel, a power supply control panel, a direct current frequency conversion driving module and a direct current motor, the power supply control panel is connected with a display control panel, the direct current frequency conversion driving module is arranged in the motor shell and integrated with the direct current motor, and an outgoing line interface CON7 of the direct current motor is connected with an interface CON3 on the power supply control panel.

The problem of motor temperature rise of the range hood is always a first problem troubling engineers, no good method for solving the problem of motor temperature rise exists at present, and a common solution is to solve the problem of motor temperature rise by adjusting motor parameters by a motor manufacturer. When the temperature rise of a motor sample sent by a motor factory does not reach the standard, the motor sample needs to be communicated with the motor factory for many times, and the motor meeting the performance requirement can be obtained through many improvements, so that the manpower, material resources and financial resources are consumed very much. Even if the temperature rise of the motor samples sent by the motor factory reaches the standard, the mass production motors can have more conditions that the temperature rise does not reach the standard. And once the motor temperature rise is higher, the motor performance will descend, influences the life of motor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art existence, provide a range hood that can effectively reduce the motor temperature rise.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes the casing and sets up the fan in the casing, the fan includes the motor, its characterized in that: the range hood further comprises a heat dissipation device capable of reducing the temperature rise of the motor, the heat dissipation device comprises a first heat dissipation assembly capable of introducing outside air into the shell and a second heat dissipation assembly capable of exhausting the inside air of the shell to the outside of the shell, a heat dissipation channel is formed between the first heat dissipation assembly and the second heat dissipation assembly, and the motor is located on the heat dissipation channel.

In order to arrange a first heat dissipation assembly and a second heat dissipation assembly on a shell, a transverse flow airflow field is formed around a rear end cover of a motor, so that heat generated by the motor during operation can be taken away, the shell comprises a left side plate located on the left side and a right side plate located on the right side, one of the first heat dissipation assembly and the second heat dissipation assembly is arranged on the left side plate, the other of the first heat dissipation assembly and the second heat dissipation assembly is arranged on the right side plate, the first heat dissipation assembly comprises first heat dissipation holes formed in the corresponding side plates, the first heat dissipation assembly further comprises first heat dissipation fans arranged on the corresponding side plates and used for introducing outside air into the shell through the first heat dissipation holes, the second heat dissipation assembly comprises second heat dissipation holes formed in the corresponding side plates, and the second heat dissipation assembly further comprises a second heat dissipation hole formed in the corresponding side plates, And a second heat radiation fan for discharging the air inside the casing to the outside of the casing through the second heat radiation hole.

In order to set a first cooling fan and a second cooling fan, the first cooling fan is arranged at a first cooling hole on the inner side of the shell, the input end of the first cooling fan is abutted against the inner side of the corresponding side plate, the second cooling fan is arranged at a second cooling hole on the inner side of the shell, and the output end of the second cooling fan is abutted against the inner side of the corresponding side plate.

Preferably, the first heat dissipation holes are at least two and combined to form a first heat dissipation hole group, the second heat dissipation holes are at least two and combined to form a second heat dissipation hole group, the first heat dissipation hole group and the second heat dissipation hole group are both in a circular shape, the diameter of the first heat dissipation hole group is D1, the diameter of the second heat dissipation hole group is D2, the value ranges of D1 and D2 are 40 mm-80 mm, the hole patterns of the first heat dissipation holes and the second heat dissipation holes are both in a circular shape, the diameter of the first heat dissipation holes is D1, the diameter of the second heat dissipation holes is D2, the value ranges of D1 and D2 are 1 mm-3 mm, the central distance between two adjacent first heat dissipation holes is L1, the central distance between two adjacent second heat dissipation holes is L2, and the value ranges of L1 and L2 are 3-4 mm.

In order to set up first radiator unit and second radiator unit on the casing to form a vertical to the air current field that flows around the rear end cap of motor, thereby can take away the produced heat of motor when the operation, range hood is still including being located the back plate of casing rear side and setting the roof that is used for the fixed fan export at the top of casing, first radiator unit is including seting up the third louvre on the back plate, second radiator unit is including seting up the fourth heat dissipation hole on the roof, second radiator unit is still including setting up on the roof, arrange the inside air of casing to the outside third radiator fan of casing through the fourth heat dissipation hole.

In order to keep a certain gap with the rear end cover of the motor and enhance rigidity, and simultaneously form a certain gap between the rear end cover and the wall after installation so as to facilitate air suction, a boss protruding from the inner side to the outer side is formed on the rear plate, and a third heat dissipation hole group formed by combining third heat dissipation holes is formed on the boss and the periphery of the boss.

Preferably, the motor includes a rear end cover which is cylindrical and is arranged corresponding to the boss, the boss is in a square column shape, the diameter of the rear end cover is D4, the depth of the boss is a, a is 5mm, the length of the boss in the left-right direction of the rear plate is B, B is D4+50mm, the width of the boss in the up-down direction of the rear plate is C, and C is 1/3D 4.

Preferably, the hole pattern of the third heat dissipation hole group is circular, the diameter of the third heat dissipation hole is d3, d3 is 5mm, the center distance between two adjacent third heat dissipation holes located on the boss and the center distance between two adjacent third heat dissipation holes located on the periphery of the boss are both L3, and L3 is 10 mm.

Preferably, a circular fourth heat dissipation hole group formed by combining fourth heat dissipation holes is formed in the top plate and corresponding to the third heat dissipation fan, the diameter of the fourth heat dissipation hole group is D3, the range of the D3 is 40 mm-80 mm, the hole pattern of the fourth heat dissipation hole is circular, the diameter of the fourth heat dissipation hole is D4, the range of the D4 is 3 mm-6 mm, the center distance between every two adjacent fourth heat dissipation holes is L4, and the range of the L4 is 2 mm-5 mm.

In order to arrange a third cooling fan, the third cooling fan is arranged on the inner side of the top plate and at the fourth cooling hole, and the output end of the third cooling fan is abutted against the inner side of the top plate.

Compared with the prior art, the utility model has the advantages of: the first heat dissipation assembly is arranged on the left side plate of the shell, and the second heat dissipation assembly is arranged on the right side plate of the shell, so that a transversely flowing airflow field is formed around the rear end cover of the motor, heat generated by the motor during operation can be taken away, the heat dissipation performance of the motor is enhanced, and the temperature rise of the motor is reduced; or the first heat dissipation assembly is arranged on the rear plate of the shell, and the second heat dissipation assembly is arranged on the top plate of the shell, so that a longitudinally flowing airflow field is formed around the rear end cover of the motor, heat generated by the motor during operation can be taken away, the heat dissipation performance of the motor is enhanced, and the temperature rise of the motor is reduced.

Drawings

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

fig. 2 is a sectional view of a range hood according to a first embodiment of the present invention;

fig. 3 is a schematic view of a first heat sink hole group of a range hood according to an embodiment of the present invention;

fig. 4 is a schematic view of a second heat sink hole group of the range hood according to the first embodiment of the present invention;

fig. 5 is a schematic view of a range hood according to an embodiment of the present invention;

fig. 6 is a sectional view of a range hood according to the second embodiment of the present invention;

FIG. 7 is an enlarged view of portion I of FIG. 6;

FIG. 8 is an enlarged view of portion II of FIG. 6;

fig. 9 is a schematic view of a rear end cover of a motor of a range hood according to an embodiment of the present invention;

fig. 10 is a schematic view of a third heat sink hole group of the range hood according to the second embodiment of the present invention;

fig. 11 is a schematic view of a fourth heat dissipating hole group of the range hood according to the second embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the disclosed embodiments of the invention may be oriented in different directions and the directional terms are intended to be illustrative and should not be construed as limiting, such as "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example one

Referring to fig. 1 to 2, a range hood is a side-draft range hood, and includes a housing 1 and a fan 2 disposed in the housing 1, where the fan 2 includes a motor 21, and the motor 21 includes a rear end cover 211.

The range hood also comprises a heat dissipation device 3 capable of reducing the temperature rise of the motor 21. The heat sink 3 includes a first heat dissipation assembly 31 capable of introducing external air into the interior of the case 1 and a second heat dissipation assembly 32 capable of discharging the internal air of the case 1 to the exterior of the case 1. A heat dissipation channel is formed between the first heat dissipation assembly 31 and the second heat dissipation assembly 32, and the motor 21 is located on the heat dissipation channel.

Referring to fig. 1 to 4, the housing 1 includes a left side plate 11 on the left side and a right side plate 12 on the right side. In the present embodiment, the first heat dissipating assembly 31 is disposed on the left side plate 11, and the second heat dissipating assembly 32 is disposed on the right side plate 12. Similarly, the positions of the first heat dissipation assembly 31 and the second heat dissipation assembly 32 can be interchanged, the first heat dissipation assembly 31 can be disposed on the right side plate 12, and the second heat dissipation assembly 32 can be disposed on the left side plate 11. The first heat dissipation assembly 31 includes a first heat dissipation hole 311 formed on the left side plate 11, and the first heat dissipation assembly 31 further includes a first heat dissipation fan 312 disposed on the left side plate 11 and configured to introduce external air into the interior of the housing 1 through the first heat dissipation hole 311. The second heat dissipation assembly 32 includes a second heat dissipation hole 321 opened on the right side plate 12, and the second heat dissipation assembly 32 further includes a second heat dissipation fan 322 disposed on the right side plate 12 and exhausting the air inside the housing 1 to the outside of the housing 1 through the second heat dissipation hole 321. The first heat dissipation fan 312 is disposed at the first heat dissipation hole 311 on the inner side of the housing 1, and an input end of the first heat dissipation fan 312 abuts against the inner side of the left side plate 11. The second heat dissipation fan 322 is disposed at the second heat dissipation hole 321 on the inner side of the housing 1, and the output end of the second heat dissipation fan 322 abuts against the inner side of the right side plate 12.

The first heat dissipation hole 311 and the second heat dissipation hole 312 may each have at least two. A first heat dissipation hole group 313 formed by combining the first heat dissipation holes 311 is formed on the left side plate 11 corresponding to the first heat dissipation fan 312, a second heat dissipation hole group 323 formed by combining the second heat dissipation holes 321 is formed on the right side plate 12 corresponding to the second heat dissipation fan 322, and both the first heat dissipation hole group 313 and the second heat dissipation hole group 323 are in a circular shape. The diameter of the first heat dissipation hole group 313 is D1, the diameter of the second heat dissipation hole group 323 is D2, and the value ranges of D1 and D2 are 40-80 mm. D1 may be determined by the size of the first heat dissipation fan, and D2 may be determined by the size of the second heat dissipation fan 322. The hole patterns of the first heat dissipation holes 311 and the second heat dissipation holes 321 are circular, the diameter of each first heat dissipation hole 311 is d1, the diameter of each second heat dissipation hole 321 is d2, the value ranges of d1 and d2 are 1-3 mm, the central distance between every two adjacent first heat dissipation holes 311 is L1, the central distance between every two adjacent second heat dissipation holes 321 is L2, and the value ranges of L1 and L2 are 3-4 mm.

When the range hood normally works, the first heat dissipation fan 312 in the first heat dissipation assembly 31 introduces the external air into the casing 1 through the first heat dissipation hole 311, and the second heat dissipation fan 322 of the second heat dissipation assembly 32 exhausts the air from the second heat dissipation hole 321 to the outside of the casing 1.

Experiments prove that the temperature rise of the motor 21 can be effectively reduced by 3K to 5K, and the service life of the motor 21 is prolonged.

Example two

Referring to fig. 5 to 6, the range hood further includes a rear plate 13 located at the rear side of the housing 1 and a top plate 14 disposed at the top of the housing 1 for fixing the outlet of the fan 2.

The difference from the first embodiment is that the first heat dissipation assembly 31 includes a third heat dissipation hole 314 formed in the rear plate 13. The second heat dissipation assembly 32 includes a fourth heat dissipation hole 324 formed in the top plate 14, and the second heat dissipation assembly 32 further includes a third heat dissipation fan 325 disposed on the top plate 14 and exhausting the air inside the housing 1 to the outside of the housing 1 through the fourth heat dissipation hole 324.

Referring to fig. 7, in order to maintain a certain gap with the rear cover 211 of the motor 21 and enhance rigidity, and to form a certain gap with the wall after installation so as to facilitate air suction, a boss 131 having a square column shape and protruding from the inside to the outside is formed on the rear plate 13, and a third heat radiation hole group 315 formed by combining third heat radiation holes 314 is formed on the boss 131 and the periphery of the boss 131.

Referring to fig. 7 and 9 to 10, the rear cap 211 has a cylindrical shape and is disposed corresponding to the boss 131, the diameter of the rear cap 211 is D4, the depth of the boss 131 is a, a is 5mm, the length of the boss 131 in the left-right direction of the rear plate 13 is B, B is D4+50mm, the width of the boss 131 in the up-down direction of the rear plate 13 is C,

the combined shape of the third heat dissipation holes 314 of the third heat dissipation hole group 315 located on the boss 131 is two rows of long strips arranged transversely, and the combined shape of the third heat dissipation holes 314 of the third heat dissipation hole group 315 located on the periphery of the boss 131 is square. The hole patterns of the third heat dissipation holes 314 are all circular, the diameter of the third heat dissipation hole 314 is d3, d3 is 5mm, the central distance between two adjacent third heat dissipation holes 314 on the boss 131 and the central distance between two adjacent third heat dissipation holes 314 on the periphery of the boss 131 are both L3, and L3 is 10 mm.

Referring to fig. 5 to 6, 8 and 11, a circular fourth heat dissipation hole group 326 formed by combining fourth heat dissipation holes 324 is formed on the top plate 14 corresponding to the third heat dissipation fan 325, a diameter of the fourth heat dissipation hole group 326 is D3, and a value range of D3 is 40mm to 80 mm. The hole pattern of the fourth heat dissipation hole 324 is circular, the diameter of the fourth heat dissipation hole 324 is d4, the range of d4 is 3 mm-6 mm, the center distance between two adjacent fourth heat dissipation holes 324 is L4, and the range of L4 is 2 mm-5 mm. The third heat dissipation fan 325 is disposed at the inner side of the top plate 14 and the fourth heat dissipation hole 324, and an output end of the third heat dissipation fan 325 abuts against the inner side of the top plate 14.

When the range hood normally works, the external air enters the casing 1 through the third heat dissipation hole 314 formed in the back plate 13 by the first heat dissipation assembly 31, and the air in the casing 1 is discharged to the outside of the casing 1 from the fourth heat dissipation hole 324 by the third heat dissipation fan 325 of the second heat dissipation assembly 32 arranged on the top plate 14. Experiments prove that the temperature rise of the motor 21 can be effectively reduced by 3K to 5K, and the service life of the motor 21 is prolonged.

Claims

1. The utility model provides a range hood, includes casing (1) and sets up fan (2) in casing (1), fan (2) include motor (21), its characterized in that: range hood still includes heat abstractor (3) that can reduce motor (21) temperature rise, heat abstractor (3) are including can leading into the inside first radiator unit (31) of casing (1) and can arrange the inside air of casing (1) to the outside second radiator unit (32) of casing (1), be formed with heat dissipation channel between first radiator unit (31) and second radiator unit (32), motor (21) are located heat dissipation channel.

2. The range hood of claim 1, wherein: the shell (1) comprises a left side plate (11) located on the left side and a right side plate (12) located on the right side, one of the first heat dissipation assembly (31) and the second heat dissipation assembly (32) is arranged on the left side plate (11), the other of the first heat dissipation assembly (31) and the second heat dissipation assembly (32) is arranged on the right side plate (12), the first heat dissipation assembly (31) comprises first heat dissipation holes (311) formed in corresponding side plates, the first heat dissipation assembly (31) further comprises first heat dissipation fans (312) arranged on corresponding side plates and used for introducing outside air into the shell (1) through the first heat dissipation holes (311), the second heat dissipation assembly (32) comprises second heat dissipation holes (321) formed in corresponding side plates, and the second heat dissipation fans (32) further comprise second heat dissipation fans (321) arranged on corresponding side plates and used for exhausting the inside air of the shell (1) to the outside of the shell (1) through the second heat dissipation holes (321) 322).

3. The range hood of claim 2, wherein: the first heat dissipation fan (312) is arranged at a first heat dissipation hole (311) on the inner side of the shell (1), the input end of the first heat dissipation fan (312) is abutted against the inner side of the corresponding side plate, the second heat dissipation fan (322) is arranged at a second heat dissipation hole (321) on the inner side of the shell (1), and the output end of the second heat dissipation fan (322) is abutted against the inner side of the corresponding side plate.

4. The range hood of claim 2, wherein: the first heat dissipation hole (311) is provided with at least two first heat dissipation holes (313) which are combined to form a first heat dissipation hole group, the second heat dissipation hole (321) is provided with at least two second heat dissipation hole groups (323) which are combined to form a second heat dissipation hole group, the first heat dissipation hole group (313) and the second heat dissipation hole group (323) are both in a circular shape, the diameter of the first heat dissipation hole group (313) is D1, the diameter of the second heat dissipation hole group (323) is D2, the value ranges of D1 and D2 are both 40 mm-80 mm, the hole patterns of the first heat dissipation hole (311) and the second heat dissipation hole (321) are both in a circular shape, the diameter of the first heat dissipation hole (311) is D1, the diameter of the second heat dissipation hole (321) is D2, the value ranges of D1 and D2 are both 1 mm-3 mm, the central distance between two adjacent first heat dissipation holes (311) is L1, and the central distance between two adjacent second heat dissipation holes (321) is L2, the value ranges of L1 and L2 are both 3-4 mm.

5. The range hood of claim 1, wherein: the range hood further comprises a rear plate (13) located on the rear side of the shell (1) and a top plate (14) arranged at the top of the shell (1) and used for fixing an outlet of the fan (2), the first heat dissipation assembly (31) comprises a third heat dissipation hole (314) formed in the rear plate (13), the second heat dissipation assembly (32) comprises a fourth heat dissipation hole (324) formed in the top plate (14), and the second heat dissipation assembly (32) further comprises a third heat dissipation fan (325) arranged on the top plate (14) and used for discharging the air inside the shell (1) to the outside of the shell (1) through the fourth heat dissipation hole (324).

6. The range hood of claim 5, wherein: the rear plate (13) is formed with a boss (131) protruding from the inner side to the outer side, and a third heat radiation hole group (315) formed by combining third heat radiation holes (314) is formed on the boss (131) and the periphery of the boss (131).

7. The range hood of claim 6, wherein: the motor (21) comprises a cylindrical rear end cover (211) which corresponds to the boss (131), the boss (131) is in a square column shape, the diameter of the rear end cover (211) is D4, the depth of the boss (131) is A, A is 5mm, the length of the boss (131) in the left-right direction of the rear plate (13) is B, B is D4+50mm, the width of the boss (131) in the up-down direction of the rear plate (13) is C,

8. the range hood of claim 6, wherein: the hole pattern of the third heat dissipation hole (314) of the third heat dissipation hole group (315) is circular, the diameter of the third heat dissipation hole (314) is d3, d3 is 5mm, the central distance between two adjacent third heat dissipation holes (314) on the boss (131) and the central distance between two adjacent third heat dissipation holes (314) on the periphery of the boss (131) are both L3, and L3 is 10 mm.

9. The range hood of claim 5, wherein: a round fourth heat dissipation hole group (326) formed by combining fourth heat dissipation holes (324) is formed in the top plate (14) and corresponding to the third heat dissipation fan (325), the diameter of the fourth heat dissipation hole group (326) is D3, the value range of D3 is 40-80 mm, the hole pattern of the fourth heat dissipation hole (324) is circular, the diameter of the fourth heat dissipation hole (324) is D4, the value range of D4 is 3-6 mm, the center distance between every two adjacent fourth heat dissipation holes (324) is L4, and the value range of L4 is 2-5 mm.

10. The range hood of claim 5, wherein: the third heat radiation fan (325) is arranged at the inner side of the top plate (14) and the fourth heat radiation hole (324), and the output end of the third heat radiation fan (325) is abutted against the inner side of the top plate (14).