CN212378030U

CN212378030U - Fan system and range hood with same

Info

Publication number: CN212378030U
Application number: CN202020066338.8U
Authority: CN
Inventors: 刘杰; 徐鑫; 陈浩辉
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2019-01-14
Filing date: 2020-01-13
Publication date: 2021-01-19
Anticipated expiration: 2030-01-13
Also published as: CN111435003A; CN211119551U

Abstract

The utility model relates to a fan system and have range hood of this fan system, including spiral case, impeller, motor and motor support, the impeller can locate in the spiral case with rotating, the motor passes through motor support mounting on the spiral case and power take off end is connected with the impeller, interval arrangement's front bezel and back plate around the spiral case has, it has air intake, its characterized in that to open on the front bezel: the motor support comprises a circular body, the body is detachably arranged at the mounting opening, the inner edge of the body is provided with a connecting arm extending forwards, and the motor is detachably arranged on the connecting arm. During installation, the motor is installed on the motor support, then the impeller is connected with the output end of the motor, so that the impeller, the motor and the motor support form an installation whole, finally, the impeller is inserted into the volute from the installation opening on the rear plate of the volute, and the motor support corresponds to and is fixed at the installation opening, and is convenient to assemble and disassemble.

Description

Fan system and range hood with same

Technical Field

The utility model relates to a fan system and should have range hood of this fan system.

Background

Range hood is the electrical apparatus that is essential in the kitchen at present, and is comparatively common and use more extensively to arrange oily smoke purification system in last.

At present, the upward-exhaust oil fume purification system is mainly divided into two types: a top-suction range hood and a near-suction range hood. The top-suction type range hood is more attractive, but the smoke inlet is higher, and the smoke suction effect is limited; compared with a top-suction range hood, the near-suction range hood has a lower smoke inlet, but is influenced by the appearance structure and the internal air duct structure of the near-suction range hood, and the existing near-suction range hood cannot better approach oil smoke, so that the oil smoke suction effect is limited to a great extent.

The fan system structure in the existing range hood is generally as shown in the invention patent application with publication number CN108087336A, namely, range hood with the centrifugal fan (application number: CN201710629367.3), and the fan system comprises a volute, an impeller, a motor support and a motor, wherein the impeller is rotatably arranged in the volute, the motor support is directly welded on a rear plate of the volute, and the motor is fixed on the volute through the motor support and the output end of the motor is connected with the impeller. When the fan system is maintained, the main maintenance parts are the motor and the impeller, namely the motor and the impeller are required to be detached under the installation state of the range hood. Because this type of fan system is under the user state, the air intake of fan is arranged forward, consequently, for easy dismounting, impeller and motor all take out from the air intake department of fan, fix the spiral case on range hood promptly and do not dismantle, and take out impeller, motor from air intake department in proper order. The motor bracket welded on the volute rear plate provides convenience for the motor to be installed from front to back, but simultaneously, the motor bracket also blocks the space at the rear side of the volute and does not allow the impeller and the motor to be taken out from the rear side of the volute.

When the fan system is reversely installed in the range hood, that is, the air inlet of the fan is arranged backwards, the existing fan system structure can not take out the fan and the impeller without disassembling the volute, and the whole fan system including the volute needs to be disassembled to further take out the impeller and the motor, which is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the first technical problem that will solve is to prior art's current situation, provides a fan system convenient to with impeller and motor from spiral case rear side dismouting.

The utility model aims to solve the second technical problem to provide a use range hood that has above-mentioned fan system to the current situation of prior art, should have range hood and be convenient for carry out the dismouting, the later maintenance and the maintenance of being convenient for to the impeller and the motor of fan system.

The utility model provides a technical scheme that at least one above-mentioned technical problem adopted does: the utility model provides a fan system, includes spiral case, impeller, motor and motor support, the impeller can be located in the spiral case with rotating, the motor passes through the motor support and installs on the spiral case and power take off end is connected with the impeller, the spiral case has front bezel and the back plate of interval arrangement around, it has air intake, its characterized in that to open on the front bezel: the motor support comprises a circular body, the body is detachably arranged at the mounting opening, the inner edge of the body is provided with a connecting arm extending forwards, and the motor is detachably arranged on the connecting arm.

Preferably, the motor support further comprises a flange ring sleeved on the periphery of the motor, the tail end of the connecting arm is bent inwards to form a connecting piece arranged corresponding to the front side wall of the flange ring, and the connecting piece is connected with the flange ring in a locking mode. The flange ring is arranged, so that the motor and the motor support are conveniently connected, the connection stability is improved, and the vibration is reduced.

Preferably, the edge of the mounting opening of the rear plate extends forwards along the circumferential direction to form a first annular rib, and correspondingly, the inner edge of the annular body extends forwards along the circumferential direction to form a second annular rib. The air inlet department is provided with the air inlet circle, the inner edge of air inlet circle extends backward along circumference and forms the third annular muscle, and is corresponding, the air intake edge of front bezel extends backward along circumference and forms the fourth annular muscle. A backflow groove is formed between the first annular rib and the second annular rib, another backflow groove is formed between the third annular rib and the fourth annular rib, the backflow groove is arranged corresponding to the periphery of the impeller blade and keeps a distance of 3-8mm from the impeller, so that the impeller is prevented from shaking in the operation process and colliding with the backflow groove in an interference mode, oil smoke backflow is prevented, oil smoke absorption efficiency is improved, and noise is reduced.

The utility model provides an use range hood that has above-mentioned fan system, includes the casing and locates the fan system in the casing, its characterized in that: the casing lower part has vertical arrangement's smoke inlet chamber, it has the cigarette mouth that advances that is linked together with this smoke inlet chamber to open on lateral wall and/or the diapire of casing lower part, casing upper portion has the collection smoke chamber that is linked together with smoke inlet chamber, the collection smoke chamber extends to smoke inlet chamber lateral part and forms the installation cavity that is used for installing fan system, fan system locates in the installation cavity and the air intake arranges towards collection smoke chamber, fan system's air outlet arranges up.

Compared with the prior art, the utility model has the advantages of: when the fan system of the utility model is installed, the motor is installed on the motor support, then the impeller is connected with the output end of the motor, so that the impeller, the motor and the motor support form an installation whole, and finally, the impeller is inserted into the volute from the installation port on the rear plate of the volute, so that the motor support is corresponding to the installation port and is fixed; when the motor support is detached, the motor support is detached from the volute rear plate, the whole installation body formed by the impeller, the motor and the motor support is detached from the volute, the impeller is detached from the output end of the motor, and the motor is detached from the motor support. The utility model discloses a range hood fan system is convenient for carry out the dismouting with fan and impeller under the air intake backward arranges the state.

Drawings

Fig. 1 is a schematic structural diagram of a fan system according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;

FIG. 3 is a cross-sectional view of FIG. 2;

fig. 4 is a schematic structural view of the impeller, the motor and the motor bracket of the embodiment of the present invention assembled as a whole;

FIG. 5 is a schematic view of the structure of FIG. 4 from another angle;

fig. 6 is a schematic structural view of the range hood in the embodiment of the present invention;

fig. 7 is an exploded view of fig. 6.

Detailed Description

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

As shown in fig. 1 to 5, the fan system a of this embodiment includes a volute 1, an impeller 2, a motor 3, and a motor support 4, the impeller 2 is rotatably disposed in the volute 1, the motor 3 is mounted on the volute 1 through the motor support 4, and a power output end of the motor is connected to the impeller 2, the volute 1 has a front plate 11, a rear plate 12, and a volute annular wall 13, the front plate 11 and the rear plate 12 are arranged at a front-rear interval, and the volute annular wall 13 is disposed between the front plate 11 and the rear plate 12 and encloses an inner cavity for mounting the impeller 2 together with the front plate 11 and the rear plate 12. The front plate 11 is provided with an air inlet 111, and the top of the volute 1 is provided with an air outlet 14.

In this embodiment, the back plate 12 is provided with a mounting opening 121 through which the impeller 2 can pass, the motor bracket 4 includes an annular body 41 and a flange ring 42, the body 41 is detachably disposed at the mounting opening 121 via screws, and the inner edge of the body has a connecting arm 411 extending forward, and the motor 3 is detachably mounted on the connecting arm 411 via the flange ring 42 and the screws.

Specifically, the flange ring 42 is sleeved on the periphery of the motor 3, the end of the connecting arm 411 is bent inward to form a connecting piece 412 corresponding to the front side wall of the flange ring 42, and the connecting piece 412 is connected with the flange ring 42 in a locking manner through a screw. The flange ring 42 is arranged, so that the motor 3 is conveniently connected with the motor bracket 4, the connection stability is improved, and the vibration is reduced.

In the present embodiment, the edge of the mounting opening 121 of the back plate 12 extends forward in the circumferential direction to form the first annular rib 10, and correspondingly, the inner edge of the annular body 41 extends forward in the circumferential direction to form the second annular rib 20. The air inlet 111 is provided with an air inlet ring 112, the inner edge of the air inlet ring 112 extends backwards along the circumferential direction to form a third annular rib 30, and correspondingly, the edge of the air inlet 111 of the front plate 11 extends backwards along the circumferential direction to form a fourth annular rib 40. A backflow groove 100 is formed between the first annular rib 10 and the second annular rib 20, another backflow groove 200 is formed between the third annular rib 30 and the fourth annular rib 40, the backflow groove is arranged corresponding to the periphery of the blade of the impeller 2 and keeps a distance of 3-8mm with the impeller, so that the impeller 2 is prevented from shaking and colliding with the backflow groove in an interference mode in the operation process, oil smoke backflow is prevented, oil smoke absorption efficiency is improved, and noise is reduced.

As shown in fig. 6 and 7, the range hood with the fan system in this embodiment includes a housing 5 and a fan system a disposed in the housing 5, a smoke inlet 51 vertically disposed is formed in a lower portion of the housing 5, a smoke inlet 511 communicated with the smoke inlet 51 is formed in a side wall of the corresponding kitchen range in the lower portion of the housing 5, a smoke collecting cavity 52 communicated with the smoke inlet 51 is formed in an upper portion of the housing 1, the smoke collecting cavity 52 extends toward the kitchen range to form a mounting cavity 53 for mounting the fan system a, the fan system a is disposed in the mounting cavity 53, an air inlet 14 is disposed toward the smoke collecting cavity 52, and an air outlet 14 of the fan system a is disposed upward.

In the installation of the fan system a of this embodiment, the motor 3 is installed on the motor support 4, and then the impeller 2 is connected with the output end of the motor 3, so that the impeller 2, the motor 3 and the motor support 4 form an installation whole, and finally, the impeller 2 is inserted into the volute 1 from the installation opening 121 on the rear plate 12 of the volute 1, so that the motor support 4 correspondingly covers and fixes the installation opening 121; when the motor support 4 is detached from the rear plate 12 of the volute 1, the whole installation body formed by the impeller 2, the motor 3 and the motor support 4 is detached from the volute 1, the impeller 2 is detached from the output end of the motor 3, and the motor 3 is detached from the motor support 4. The fan system a of the range hood of the embodiment is convenient for disassembling and assembling the fan and the impeller when the air inlet 111 is arranged backwards.

Claims

1. The utility model provides a fan system, includes spiral case (1), impeller (2), motor (3) and motor support (4), impeller (2) can be located spiral case (1) with rotating, motor (3) are installed on spiral case (1) and power take off end is connected with impeller (2) through motor support (4), spiral case (1) have front bezel (11) and back plate (12) that the interval was arranged around having, it has air intake (111), its characterized in that to open on front bezel (11): the impeller mounting structure is characterized in that a mounting opening (121) through which the impeller (2) can penetrate is formed in the rear plate (12), the motor support (4) comprises a circular body (41), the body (41) is detachably arranged at the mounting opening (121), a connecting arm (411) extending forwards is arranged on the inner edge of the body, and the motor (3) is detachably mounted on the connecting arm (411).

2. The fan system of claim 1, wherein: the motor support (4) further comprises a flange ring (42) sleeved on the periphery of the motor (3), the tail end of the connecting arm (411) is bent inwards to form a connecting piece (412) arranged corresponding to the front side wall of the flange ring (42), and the connecting piece (412) is connected with the flange ring (42) in a locking mode.

3. The fan system of claim 1 or 2, wherein: the edge of the mounting opening (121) of the rear plate (12) extends forwards along the circumferential direction to form a first annular rib (10), and correspondingly, the inner edge of the annular body (41) extends forwards along the circumferential direction to form a second annular rib (20).

4. The fan system of claim 1 or 2, wherein: air intake (111) department is provided with air intake circle (112), the inner edge of air intake circle (112) forms third annular muscle (30) along circumference ranging back, and is corresponding, air intake (111) edge of front bezel (11) forms fourth annular muscle (40) along circumference ranging back.

5. A range hood applying the fan system of any one of claims 1 to 4, comprising a housing (5) and the fan system (a) arranged in the housing (5), wherein: casing (5) lower part has vertical arrangement's smoke inlet chamber (51), it has into mouth (511) that are linked together with this smoke inlet chamber (51) to open on lateral wall and/or the diapire of casing (5) lower part, casing (5) upper portion has collection smoke chamber (52) that are linked together with smoke inlet chamber (51), collection smoke chamber (52) extend to smoke inlet chamber (51) lateral part and form installation cavity (53) that are used for installing fan system (a), fan system (a) are located in the installation cavity and air intake (111) are arranged towards collection smoke chamber (52), air outlet (14) of fan system (a) are arranged up.