CN212985575U

CN212985575U - Fan bracket with half-wrapping structure and microwave oven

Info

Publication number: CN212985575U
Application number: CN202021507635.8U
Authority: CN
Inventors: 李丰; 付正彬
Original assignee: Guangdong Galanz Microwave Electric Manufacturing Co Ltd; Guangdong Galanz Microwave Oven and Electrical Appliance Manufacturing Co Ltd
Current assignee: Guangdong Galanz Microwave Electric Manufacturing Co Ltd; Guangdong Galanz Microwave Oven and Electrical Appliance Manufacturing Co Ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-04-16
Anticipated expiration: 2030-07-24

Abstract

The utility model provides a half package structure fan bracket and microwave oven. The fan support with the semi-wrapping structure comprises a support panel, an air guide ring and a supporting and positioning frame which are integrally formed, wherein the support panel is composed of a main panel and an upper panel positioned above the main panel, the lower portion of the main panel is arranged in a hollow circular arc mode, the air guide ring is connected to one side of the front of the main panel in a surrounding mode in a corresponding circular arc mode, a first bending plate is arranged on the edge of the rear portion of the upper panel in an upward bending mode, and the first bending plate is parallel to the main panel. Half package structure fan bracket and microwave oven, make forced air cooling air at the forced air cooling circulation in-process, except that will guarantee at first that the most important components and parts magnetron that generates heat in the microwave oven carries out the convection heat dissipation of continuation, still will promote the convection heat dissipation effect to the condenser by a wide margin to make microwave oven forced air cooling circulation system obtain further optimization and improve, further improved microwave oven forced air cooling circulation efficiency.

Description

Fan bracket with half-wrapping structure and microwave oven

Technical Field

The utility model relates to a microwave oven technical field particularly, relates to half package structure fan bracket and microwave oven.

Background

Nowadays, kitchen appliances such as microwave ovens and electric ovens are increasingly popular for household use. When the microwave oven normally operates, the heating element can continuously generate a large amount of instantaneous heat under the action of the high-voltage circuit, the fan motor in the low-voltage circuit is required to drive the fan to rotate, forced air cooling air with enough flow and flow rate is generated, the heating element is subjected to continuous convection heat dissipation, and the structural design of the fan support of the microwave oven can directly influence the air cooling circulation efficiency.

Most of the existing microwave oven fan supports are designed to be of a full-enclosed type, i.e., the wind guiding ring of the fan support is arranged on the main panel of the fan support in a 360-degree surrounding manner. Chinese utility model patent application No. CN201220038273.1 discloses a fan component of microwave oven, and the accompanying drawings of the specification show that a part of gap is left between the wind guiding ring and the main panel of the fan support, that is, the fan support constitutes a fan support with a half-pack structure. However, in the patent application document, the fan bracket with the half-pack structure is adopted, so that when the capacitor of the microwave oven and the fan bracket are integrally assembled, an avoiding space is reserved for the high-voltage fuse box cover, and the capacitor is also a heating component in a high-voltage circuit, so that the fan bracket with the half-pack structure is not beneficial to the convection heat dissipation of the capacitor, and the improvement of the air cooling circulation efficiency of the microwave oven is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the to-be-solved technical problem of the utility model, the first aspect provides a half packet of structure fan bracket, makes forced air cooling air in the forced air cooling circulation in-process, except will guarantee at first that the convection heat dissipation that carries out the continuation to the most important heating element and part magnetron in the microwave oven carries out, still will promote the convection heat dissipation effect to the condenser by a wide margin to make microwave oven forced air cooling circulation system obtain further optimization and improve, with further improvement microwave oven forced air cooling circulation efficiency.

In order to solve the problem, the utility model provides a half packet of structure fan support, its support panel, wind-guiding circle, the support locating rack that includes integrated into one piece, the support panel is by the main board and is located the top panel of main board top is constituteed, the main board lower part is the setting of cavity circular arc, the wind-guiding circle be corresponding circular arc encircle connect in the place ahead one side of main board, upward bend in the top panel rear edge is provided with first bending plate, first bending plate with the main board is parallel. The first bending plate is fixed on the rear wall of the microwave oven case and is tightly attached to the rear wall of the microwave oven case when being assembled with the microwave oven; forced air-cooled air is subjected to the diversion action of the air guide ring, so that the continuous convection heat dissipation of the most important heating component magnetron in the microwave oven is firstly ensured, and the convection heat dissipation effect of the capacitor is greatly improved, so that the air-cooled circulation system of the microwave oven is further optimized and improved, and the air-cooled circulation efficiency of the microwave oven is further improved.

Preferably, the angle of the hollow circular arc of the main panel is between 120 ° and 150 °. By setting the angle of the hollow arc between 120 degrees and 150 degrees, the convective heat dissipation effect on the magnetron is ensured at first, and the convective heat dissipation effect on the capacitor is considered to the maximum extent.

Preferably, the first bending plate upper end edge is provided with a buckle along extending in the direction of keeping away from the top panel, main panel rear one side is provided with first connecting post. When the fan bracket is assembled with the microwave oven, the pre-assembly of the first step can be realized through the buckle, and then the fan bracket is firmly fixed on the rear wall of the case through the first connecting column, so that extra noise generated by the vibration of the fan bracket is effectively avoided.

Preferably, the air guide ring is in transition connection with the main panel through a smooth circular arc, and a reinforcing rib is arranged at the connection position of the air guide ring and the upper panel. The wind loss of the forced air-cooled air at the positions of the air guide ring and the air guide ring can be further reduced through smooth circular arc transition connection; the reinforcing ribs can improve the overall strength of the fan bracket, particularly the supporting strength of the upper panel.

Preferably, the top panel with the main panel, first board of bending are all perpendicular, the top panel is provided with second spliced pole, louvre, the top panel with the left side junction of main panel is bent below respectively and is set up with the rear and form the buffering portion, the half enclosure space of buffering portion for having certain volume. The top wall of the case of the microwave oven can be designed to be fully sealed due to the waterproof, attractive and other reasons, the filter device is stably arranged above the upper panel through the second connection and the reinforcing ribs, so that the space arrangement of the microwave oven case can be effectively saved, and the buffer part and the heat dissipation holes are located below the filter device, so that the buffer diffusion of local hot air around the filter device and the convection heat dissipation of external cold air can be accelerated.

Preferably, the main panel and the buffer part are respectively provided with a second bending plate which is bent towards the rear side, and the upper parts of the second bending plates are respectively connected with the upper panel in a sealing manner. In order to reduce cost and effectively reduce noise of the fan assembly, the fan bracket is usually made of a plastic plate, and the plastic plate is easy to generate plastic deformation under the action of the fan motor. Through right the mode of setting up of second bent plate, can wholly strengthen the intensity design of fan support, improve the anti plastic deformation ability.

Preferably, the support locating rack encircle set up in rear one side of the main panel, the support locating rack includes locating rack, support frame, the locating rack is closed form set up in support locating rack below position, support frame one end encircle set up in the locating rack top, the other end seal connect in arbitrary one in main panel, the second bent plate, the buffer portion three.

Preferably, the first connecting column is arranged closely under the upper panel and is connected with one of the positions of the supporting frame in a sealing manner. The support frame can further strengthen the strength design of the support frame through the above sealing connection mode, and form a strong support for the positioning frame and the fan motor, so that the fan motor can be firmly fixed in the positioning frame.

Preferably, the support positioning frame further comprises a third connecting column arranged below the positioning frame. The supporting and positioning frame is connected with the rear wall of the case through the third connecting column, so that the fan motor can be further firmly supported by the fan bracket in the running process of the fan motor, and the noise generated by vibration due to the fact that the fan assembly is not firmly fixed is reduced.

A second aspect of the present invention is to provide a microwave oven including the fan support of the first aspect in a half-wrapped configuration.

Compared with the prior art, full packet of structure fan bracket and microwave oven have following beneficial effect:

1) in the air cooling circulation process of the forced air cooling, the continuous convection heat dissipation of the most important heating component magnetron in the microwave oven is firstly ensured, and the convection heat dissipation effect of the capacitor is also greatly improved, so that the air cooling circulation system of the microwave oven is further optimized and improved, and the air cooling circulation efficiency of the microwave oven is further improved;

2) the convection heat dissipation effect of the filter device in the microwave oven is obviously improved;

3) the fan bracket is more firmly installed, the fan assembly operates more stably, and the operating noise of the microwave oven is obviously reduced.

Drawings

Fig. 1 is a schematic perspective view of a fan bracket with a half-pack structure according to an embodiment of the present invention;

fig. 2 is a schematic back view of a fan bracket with a half-pack structure according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a fan bracket assembly structure with a half-pack structure according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a fan bracket pre-assembly structure with a half-pack structure according to an embodiment of the present invention.

Description of reference numerals:

1-bracket panel, 11-main panel, 111-first connecting column, 112-buffer part, 113-wire guide groove, 12-upper panel, 121-second connecting column, 122-heat dissipation hole, 13-first bending plate, 131-buckle, 14-second bending plate, 2-wind guide ring, 21-reinforcing rib, 3-supporting positioning frame, 31-positioning frame, 32-supporting frame, 33-third connecting column, 4-cabinet, 5-magnetron, 6-filtering device, 7-capacitor, 8-fan and 9-fan motor.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Example 1

As shown in fig. 1-2, the utility model provides a half packet of structure fan support, it includes integrated into one piece's support panel 1, wind-guiding circle 2, support locating rack 3, support panel 1 is by main panel 11 and is located the top panel 12 of main panel 11 top is constituteed, main panel 11 lower part is the setting of cavity circular arc, wind-guiding circle 2 be corresponding circular arc encircle connect in the place ahead one side of main panel 11, upper panel 12 rear edge upwards bends and is provided with first folded sheet 13, first folded sheet 13 with main panel 11 is parallel.

Referring to fig. 3, the first bending plate 13 is fixed to the rear wall of the microwave oven case 4 and closely attached to the rear wall of the microwave oven case 4 when assembled with the microwave oven; the bracket panel 1, the air guide ring 2 and the supporting and positioning frame 3 are integrally formed, so that on one hand, the use of an intermediate connecting piece can be effectively reduced, the wind power loss in the air cooling circulation process is reduced, on the other hand, the local pressure difference phenomenon at the split connection part is avoided to a certain extent due to the integrally formed arrangement, and the flow guide effect can be also obviously improved; the forced air-cooled air is under the guiding action of the air guiding ring 2, and not only can the continuous convection heat dissipation of the most important heating component magnetron 5 in the microwave oven be firstly ensured, but also the convection heat dissipation effect of the capacitor 7 can be greatly improved, so that the air-cooled circulation system of the microwave oven is further optimized and improved, and the air-cooled circulation efficiency of the microwave oven is further improved.

Preferably, the angle of the hollow circular arc of the main panel 11 is comprised between 120 ° and 150 °.

Preferably, the angle of the hollow circular arc of the main panel 11 is set to 135 °.

By providing the arc in the range of 120 ° to 150 °, in particular 135 °, the convective heat dissipation effect of the capacitor 7 is balanced to a maximum extent while the convective heat dissipation effect of the magnetron 5 is firstly ensured.

Preferably, the wind guide ring 2 and the main panel 11 are in transition connection through a smooth circular arc.

And the wind loss of the forced air-cooled air at the positions of the air guide ring 2 can be further reduced through smooth circular arc transition connection.

Preferably, a buckle 131 is arranged at the upper end edge of the first bending plate 13 and extends in the direction away from the upper panel 12, and the buckle 131 is arranged in an inverted U-shaped lower opening.

Preferably, the two buckles 131 are arranged and evenly distributed on the upper edge of the first bending plate 13.

Preferably, a first connection post 111 is disposed at a rear side of the main panel 11.

Preferably, the axial end surface of the first connecting column 111 is longitudinally flush with the first bending plate 13.

When the fan bracket is assembled with the microwave oven, the first step of preassembly can be realized by the two buckles 131, and the fan bracket is firmly fixed on the rear wall of the case 4 by the first connecting column 111, so that extra noise generated by vibration of the fan bracket is effectively avoided.

Example 2

The present embodiment is further optimized for continuous convection heat dissipation of the microwave oven filter device based on embodiment 1.

As shown in fig. 3, the heating component of the microwave oven further includes a filtering device 6, and when the microwave oven operates, the filtering device 6 continuously generates a large amount of instantaneous heat under the action of the high-voltage circuit.

As further shown in fig. 1-2, the upper panel 12 is perpendicular to the main panel 11 and the first bending plate 13, the upper panel 12 is provided with a second connecting column 121, and the second connecting column is provided with a plurality of connecting columns and is arranged at a certain interval.

Preferably, the upper panel 12 is provided with heat dissipation holes 122.

Preferably, the connection portion between the upper panel 12 and the left side of the main panel 11 is bent downward and rearward to form a buffer portion 112, and the buffer portion 112 is a semi-closed space having a certain volume.

Preferably, a reinforcing rib 21 is arranged at the joint of the wind guide ring 2 and the upper panel 12.

The top wall of the case 4 of the microwave oven is designed to be totally sealed due to the waterproof and beautiful reasons, the filtering device 6 is firmly arranged above the upper panel 12 through the second connecting column 121 and the reinforcing ribs 21, on one hand, the space arrangement of the case 4 of the microwave oven can be effectively saved, on the other hand, the buffering part 112 and the heat dissipation holes 122 are both positioned below the filtering device 6, and the buffering diffusion of local hot air around the filtering device 6 and the convection heat dissipation of external cold air can be accelerated.

Example 3

This embodiment is further optimized for the firm installation of the fan and the fan motor based on

embodiments

1 and 2.

With reference to fig. 1-2 and further as shown in fig. 4, the supporting and positioning frame 3 is disposed around one side of the rear portion of the main panel 11, the supporting and positioning frame 3 includes a positioning frame 31 and a supporting frame 32, the positioning frame 31 is disposed under the supporting and positioning frame 3 in a sealed manner, the supporting frame 32 is disposed around the positioning frame 31, the fan motor 9 is fixedly mounted on the positioning frame 31, and the fan 8 is rotatably connected to the fan motor 9.

Preferably, the main panel 11 and the buffer portion 112 are each provided with a second bending plate 14 bent toward the rear side, and the upper portions of the second bending plates 14 are each connected to the upper panel 12 in a sealed manner.

In order to reduce the cost and effectively reduce the noise of the fan assembly, the fan bracket is usually made of a plastic plate, and the plastic plate is easy to generate plastic deformation under the action of the fan motor 9. Through the arrangement mode of the second bending plate 14, the strength design of the fan support can be integrally enhanced, and the plastic deformation resistance is improved.

Preferably, the supporting frame 32 is connected to any one of the main panel 11, the second bending plate 14, and the buffer portion 112 in a sealing manner.

Preferably, the first connecting column 111 is disposed immediately below the upper panel 12 and is connected to one of the supporting frames 32 in a sealing manner.

The supporting frame 32 can further enhance the strength design of the supporting frame 32 by the above sealing connection manner, and form a strong support for the positioning frame 31 and the fan motor 9, so that the fan motor 9 can be firmly fixed in the positioning frame 31.

Preferably, the support and positioning frame 3 further comprises a third connecting column 33 disposed below the positioning frame 31.

The supporting and positioning frame 3 is connected with the rear wall of the case 4 through the third connecting column 33, so that the supporting of the fan bracket on the fan motor 9 can be further firmed in the operation process of the fan motor 9, and the noise generated by vibration due to the infirm fixation of the fan assembly is reduced.

Preferably, the connecting area of the main panel 11 and the second bending plate 14 is provided with a wire guide 113.

The wires of the microwave oven's electronic control system can be shuttled and positioned through the wire guide slots 113, provided that the rack panel itself is sufficiently strong.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. The utility model provides a half packet of structure fan support, its characterized in that, it includes integrated into one piece's support panel (1), wind-guiding circle (2), support locating rack (3), support panel (1) by main panel (11) and be located upper panel (12) of main panel (11) top are constituteed, main panel (11) lower part is the setting of cavity circular arc, wind-guiding circle (2) are corresponding circular arc and encircle connect in the place ahead one side of main panel (11), upper panel (12) rear edge is upwards bent and is provided with first bending plate (13), first bending plate (13) with main panel (11) are parallel.

2. The half-wrap fan bracket of claim 1, wherein: the angle of the hollow circular arc of the main panel (11) is between 120 DEG and 150 deg.

3. The half-wrap fan bracket of claim 1, wherein: the edge of the upper end of the first bending plate (13) extends in the direction away from the upper panel (12) to form a buckle (131), and a first connecting column (111) is arranged on one side of the rear of the main panel (11).

4. The half-wrap fan bracket of claim 1, wherein: the air guide ring (2) is in transition connection with the main panel (11) through a smooth circular arc, and a reinforcing rib (21) is arranged at the connection position of the air guide ring (2) and the upper panel (12).

5. The half-wrap fan bracket of claim 3, wherein: the upper panel (12) with main panel (11), first board (13) of bending are all perpendicular, upper panel (12) are provided with second spliced pole (121), louvre (122), upper panel (12) with the left side junction of main panel (11) is bent below respectively and is set up with the rear and form buffer portion (112), buffer portion (112) are for having the semi-enclosed space of certain volume.

6. The half-pack structure fan bracket of claim 5, wherein: the main panel (11) and the buffer part (112) are respectively provided with a second bending plate (14) which is bent towards the rear side, and the upper parts of the second bending plates (14) are respectively connected with the upper panel (12) in a sealing way.

7. The half-pack structure fan bracket of claim 6, wherein: support locating rack (3) encircle set up in rear one side of main panel (11), support locating rack (3) including locating rack (31), support frame (32), locating rack (31) be the closed form set up in support locating rack (3) below position, support frame (32) one end encircle set up in locating rack (31) top, the other end seal connect in arbitrary one in main panel (11), second bent plate (14), buffer portion (112) three.

8. The half-pack structure fan bracket of claim 7, wherein: the first connecting column (111) is arranged close to the lower part of the upper panel (12) and is connected with one part of the supporting frame (32) in a sealing way.

9. The half-pack structure fan bracket of claim 7, wherein: the supporting and positioning frame (3) further comprises a third connecting column (33) arranged below the positioning frame (31).

10. A microwave oven, characterized by: a fan support comprising a half-pack structure according to any one of claims 1 to 9.