Cooking equipment with hot air stirring function

By adopting the alternating rotation of symmetrical blades in the stirring fan and the multi-heating element heating design in the kitchen appliances, the problem of uneven hot air in the oven cavity is solved, and the uniformity of heating of the ingredients and the improvement of the cooking effect are achieved.

CN120616334APending Publication Date: 2025-09-12DONGGUAN HYXION METAL TECH CO LTD
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Patent Information

Application Number
CN202510963842.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-11
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

When existing kitchen appliances are designed with two stirring blades rotating in opposite directions, it is easy to cause uneven stirring of hot air inside the oven cavity, affecting the uniform heating of food.

Method used

A stirring fan with two symmetrical blades is used, which rotates alternately clockwise and counterclockwise through the driving component to form clockwise and counterclockwise cyclones. Combined with multiple heating elements, the air flowing into the furnace cavity is heated to achieve uniform heating of the food in the furnace cavity.

Benefits of technology

It improves the heat uniformity inside the oven cavity, ensures that the ingredients are heated more evenly, and improves the cooking effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses cooking equipment with a hot air stirring function, and relates to the technical field of kitchen utensils. The cooking equipment with the hot air stirring function comprises a furnace body, a wind shield, stirring blades, a driving assembly and a first heating piece, the wind shield is arranged in the furnace chamber; the stirring blades are positioned between the wind shield and the first wall surface, and are arranged at intervals with the wind shield and the first wall surface; the two blades of the blade group are symmetrically arranged at an interval relative to the direction vertical to the rotating axis; the driving assembly can drive the rotating seat to rotate clockwise and anticlockwise around the rotating axis; the first heating piece is arranged around the peripheral side of the rotating base. According to the cooking equipment with the hot air stirring function, the rotating shaft can be driven by the driving assembly to rotate clockwise and anticlockwise back and forth in sequence, so that cyclone rotating clockwise and cyclone rotating anticlockwise are generated in sequence through the blade group, and heat in the furnace cavity is uniformly stirred; and food materials in the furnace chamber are heated more uniformly.
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Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, in particular to a cooking device with a hot air stirring function. Background Art

[0002] There are many products in the kitchen appliance industry, and the structural design schemes of various kitchen appliance products are also diverse. For example, various combination products such as microwave ovens, steam ovens, electric ovens, gas ovens, gas stove ovens, etc. all have hot air convection or air fryer functions.

[0003] Some kitchen appliances heat the food by designing rotating hot air stirring blades to heat the air through heating wires. However, since the single stirring blade is designed to rotate and stir in a single direction, the hot air stirring of this design is prone to uneven stirring of the hot air inside the oven cavity, resulting in uneven heating of the food. By designing and installing two hot air stirring blades, and setting the two stirring blades to rotate and stir in opposite directions at the same time, the problem of how to evenly stir the hot air can be solved to a certain extent. However, the wind directions of the two stirring blades rotating in opposite directions in two adjacent positions are likely to cause mutual interference, affecting the uniformity of temperature inside the oven cavity. Summary of the Invention

[0004] The object of the present invention is to overcome the above-mentioned defects in the prior art and provide a cooking device with a hot air stirring function, which can improve the heat uniformity inside the oven cavity.

[0005] To achieve the above-mentioned objectives, the present invention provides a cooking device with a hot air stirring function, the cooking device with a hot air stirring function includes a furnace body, a windshield, a stirring fan blade, a driving assembly and a first heating element; the furnace body is provided with a furnace cavity; the furnace cavity has a first wall surface; the windshield is arranged in the furnace cavity; the windshield is arranged opposite to the first wall surface and is spaced apart from the inner wall of the furnace cavity; the stirring fan blade is located between the windshield and the first wall surface and is spaced apart from the windshield and the first wall surface; the stirring fan blade includes a rotating seat and a blade group; the blade group is arranged on the rotating seat; the blade group is provided with a plurality of blade groups and is spaced apart in sequence around the rotation axis; the blade group includes two blades, and the two blades are symmetrically arranged and spaced apart relative to a direction perpendicular to the rotation axis; the driving assembly is connected to the rotating seat; the driving assembly can drive the rotating seat to rotate clockwise and counterclockwise alternately around the rotation axis; the first heating element is arranged around the circumference of the rotating seat.

[0006] Furthermore, a first opening is provided on the rotating seat, and a plurality of first openings are provided and are spaced apart around the rotating axis; one end of the two blades of the same blade group are respectively connected to the side walls of two adjacent first openings that are away from each other.

[0007] Furthermore, the width direction of the blade is arranged parallel to the axial direction of the rotation axis.

[0008] Furthermore, an insert block is provided on the first wall surface, and the cross section of the insert block is circular; a slot is provided on the end surface of the wind shield opposite to the first wall surface, the insert block is inserted into the slot, and the baffle is spaced apart from the first wall surface.

[0009] Furthermore, it also includes a hot air mesh cover, the wind shield is provided with a second opening, the second opening is arranged opposite to the middle part of the rotating seat; the hot air mesh cover is arranged at the second opening.

[0010] Furthermore, the furnace body includes a bottom plate and side plates, and there are multiple side plates, which are connected end to end in sequence. The bottom plate is connected to one end of the multiple side plates; the furnace cavity is defined between the bottom plate and the multiple side plates, and the end surface of the bottom plate facing the furnace cavity is a first wall surface, and the wind shield and the multiple side plates are spaced apart.

[0011] Furthermore, a second heating element is included, and the second heating element is arranged on the bottom plate or the side plate.

[0012] Furthermore, the second heating element is provided in plurality, and the plurality of second heating elements are respectively provided on the bottom plate and / or the side plate.

[0013] Furthermore, the driving assembly includes a driving member, a rotating shaft and a fixed bracket; the fixed bracket is connected to the outside of the furnace body away from the furnace cavity, the driving member is connected to the fixed bracket and to the rotating shaft, and the driving member can drive the rotating shaft to rotate clockwise and counterclockwise alternately around the rotation axis; one end of the rotating shaft is passed through the furnace body and is connected to the rotating seat.

[0014] Furthermore, the driving assembly also includes a balancing gasket; the blade group is arranged on a side of the rotating base close to the windshield, and the balancing gasket is sleeved on the rotating shaft and abuts against the side end of the rotating base away from the windshield.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] In an embodiment of the present invention, food can be placed in the oven cavity and on the part of the wind shield away from the stirring fan blade. The driving component drives the rotating seat to rotate so as to drive the blade group on the rotating seat to rotate around the rotation axis. Since the stirring fan blade is located between the wind shield and the first wall surface, the wind generated by the rotation of the blade group can flow outward from between the wind shield and the first wall surface and the inner wall of the oven cavity; and the first heating element is arranged around the circumference of the rotating seat, so that the first heating element can heat the wind flowing into the oven cavity to achieve heating of the food in the oven cavity; since the blade group consists of two blades, and the directions of the two blades being symmetrical to each other are perpendicular to the direction of the rotation axis, the driving component can drive the rotating seat. The movable seat rotates clockwise around the rotation axis so that a cyclone rotating in a clockwise direction can be generated through one of the blades of the blade group, and the driving component can drive the driving rotating seat to rotate counterclockwise around the rotation axis so that a cyclone rotating in a counterclockwise direction can be generated through the other blade of the blade group; in the embodiment of the present invention, the cooking device with the function of stirring hot air can drive the rotating seat to rotate clockwise and counterclockwise in sequence through the driving component, thereby generating a cyclone rotating in a clockwise direction and a cyclone rotating in a counterclockwise direction in sequence through the blade group, thereby achieving uniform mixing of heat inside the furnace cavity, improving the overall temperature uniformity inside the furnace cavity, and making the food in the furnace cavity heated more evenly, thereby achieving better cooking effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technology in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 An exploded view of the cooking device with hot air stirring function of the present invention;

[0019] Figure 2 A cross-sectional view of a cooking device with a hot air stirring function according to the present invention;

[0020] Figure 3 A schematic structural diagram of a stirring blade of a cooking device with a hot air stirring function according to the present invention;

[0021] Figure 4 The present invention is a schematic structural diagram of the bottom plate, windshield and hot air mesh cover of the cooking device with hot air stirring function.

[0022] Reference numerals:

[0023] Furnace body 100; bottom plate 101; side plate 102; furnace chamber 110; first wall 111; insert 112; wind shield 200; slot 210; second opening 220; stirring fan blade 300; rotating seat 310; first opening 311; blade group 320; blade 321; drive assembly 400; drive member 410; rotating shaft 420; fixing bracket 430; balancing gasket 440; first heating element 500; hot air mesh cover 600. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technology in this embodiment of the present invention in conjunction with the drawings in this embodiment of the present invention. Obviously, the embodiment described is only one embodiment of the present invention, not all embodiments of the present invention. Based on this embodiment of the present invention, all other embodiments of the present invention obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this invention.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship and movement status of the various components under a certain specific posture (as described in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0027] See also Figures 1 to 4The embodiment of the present invention provides a cooking device with a hot air stirring function, the cooking device with a hot air stirring function includes a furnace body 100, a windshield 200, a stirring fan 300, a driving assembly 400 and a first heating element 500; the furnace body 100 is provided with a furnace cavity 110; the furnace cavity 110 has a first wall 111; the windshield 200 is arranged in the furnace cavity 110; the windshield 200 is arranged opposite to the first wall 111 and is spaced apart from the inner wall of the furnace cavity 110; the stirring fan 300 is located between the windshield 200 and the first wall 111 and is spaced apart from the windshield 200 and the first wall 111. 11 interval arrangement; the stirring fan blade 300 includes a rotating base 310 and a blade group 320; the blade group 320 is arranged on the rotating base 310; there are multiple blade groups 320, and they are arranged in sequence at intervals around the rotation axis; the blade group 320 includes two blades 321, and the two blades 321 are symmetrically arranged with respect to the direction perpendicular to the rotation axis and are arranged at intervals; the driving component 400 is connected to the rotating base 310; the driving component 400 can drive the rotating base 310 to rotate clockwise and counterclockwise alternately around the rotation axis; the first heating element 500 is arranged around the circumference of the rotating base 310.

[0028] In the embodiment of the present invention, food can be placed in the oven cavity 110 and placed on the part of the wind shield 200 away from the stirring fan blade 300. The driving component 400 drives the rotating seat 310 to rotate, so as to drive the blade group 320 on the rotating seat 310 to rotate around the rotation axis. Since the stirring fan blade 300 is located between the wind shield 200 and the first wall 111, the wind generated by the rotation of the blade group 320 can flow outward from between the wind shield 200 and the first wall 111 and the inner wall of the oven cavity 110; and the first heating element 500 is arranged around the circumference of the rotating seat 310, so that the first heating element 500 can heat the wind flowing into the oven cavity 110 to heat the food in the oven cavity 110; since the blade group 320 is composed of two blade groups 320, and the directions of the two blades 321 are symmetrical to each other are perpendicular to the direction of the rotation axis, The driving component 400 can drive the driving rotating base 310 to rotate clockwise around the rotation axis, so that a clockwise rotating cyclone can be generated through one of the blades 321 of the blade group 320, and the driving component 400 can drive the driving rotating base 310 to rotate counterclockwise around the rotation axis, so that a counterclockwise rotating cyclone can be generated through another blade 321 of the blade group 320; in an embodiment of the present invention, the cooking device with the function of stirring hot air can drive the rotating base 310 to rotate clockwise and counterclockwise in sequence through the driving component 400, thereby generating a clockwise rotating cyclone and a counterclockwise rotating cyclone in sequence through the blade group 320, thereby achieving uniform mixing of the heat inside the furnace cavity 110, improving the overall temperature uniformity inside the furnace cavity 110, and making the food in the furnace cavity 110 heated more evenly, achieving better cooking effects.

[0029] Reference Figure 2 and Figure 3 In some embodiments of the present invention, a first opening 311 is provided on the rotating seat 310, and a plurality of first openings 311 are provided and are arranged at intervals around the rotation axis; one end of the two blades 321 of the same blade group 320 is respectively connected to the side walls of the two adjacent first openings 311 that are away from each other.

[0030] A blade 321 is installed on the inner wall of each first opening 311 .

[0031] The first opening 311 can increase the amount of air intake, so that the blades 321, driven by the rotating seat 310, can push more air flow to increase the airflow blown into the furnace cavity 110. Specifically, the first opening 311 is set at the opposite side end of the rotating seat 310, and the first opening 311 is opposite to the first wall 111 and the wind shield 200.

[0032] The two adjacent first openings 311 are located between two blades 321 of the same blade assembly 320 to ensure the stability of the first air outlet and can respectively cooperate with the two blades 321 .

[0033] Specifically, the number of the blades 321 is equal to the number of the first openings 311 ; the blades 321 and the rotating base 310 are integrally formed, and the blades 321 and the first openings 311 can be formed simultaneously by cutting and bending.

[0034] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the width direction of the blade 321 is arranged parallel to the axial direction of the rotation axis, so that the area of ​​contact between the blade 321 and the air can be increased as much as possible during the rotation of the stirring fan blade 300, thereby improving the effect of blowing air.

[0035] Specifically, the length direction of the blade 321 and the axis direction of the rotation axis are perpendicular to each other.

[0036] Reference Figure 1 and Figure 2 In some embodiments of the present invention, an insert block is provided on the first wall 111, and the cross-section of the insert block is circular; a slot 210 is provided on the end surface of the windshield 200 opposite to the first wall 111, and the insert block is set in the slot 210.

[0037] After the wind shield 200 is placed in the furnace cavity 110, the wind shield 200 is arranged opposite to the first wall 111, and an insert block is provided on the end face of the first wall 111 facing the furnace cavity 110, and a slot 210 is provided on the end face of the wind shield 200 opposite to the first wall 111. The insert block is inserted into the slot 210 to fix the position of the wind shield 200 and to ensure a distance between the wind shield 200 and the first wall 111.

[0038] Specifically, the cross-section of the insert increases continuously in the direction approaching the first wall 111 to prevent the insert from being over-inserted into the slot 210, so as to limit the distance between the wind shield 200 and the first wall 111. The airflow generated by the stirring blade 321 during the rotation between the wind shield 200 and the first wall 111 will pass through the insert, and the insert is a cylindrical structure, so that the cross-section of the insert is circular, so as to reduce the loss of the airflow when passing through and ensure the amount of air blown into the furnace cavity 110.

[0039] Specifically, the slots 210 are arranged at the edge of the windshield 200 to further reduce the loss of airflow caused by the plug-in blocks; there are multiple slots 210, which are respectively arranged at the four corners of the windshield 200, and there are also multiple plug-in blocks, which are respectively inserted into multiple slots 210.

[0040] Reference Figure 1 、 Figure 2 and Figure 4 In some embodiments of the present invention, a hot air net cover 600 is further included. A second opening 220 is provided on the windshield 200 , and the second opening 220 is arranged opposite to the rotating seat 310 ; the hot air net cover 600 is arranged at the second opening 220 .

[0041] There are many openings arranged on the hot air mesh cover 600. The air blown out during the rotation of the stirring fan blade 300 can be sent into the oven cavity 110 through the hot air mesh cover 600, so that the air can be blown toward the center of the oven cavity 110, so as to improve the uniform heating of the food in the oven cavity 110 and the uniformity of heat.

[0042] Specifically, in other embodiments of the present invention, during the rotation of the stirring blade 300, air can be returned from the second opening 220, and the hot air mesh cover 600 can be provided to prevent food residues from being blown toward the stirring blade 300.

[0043] Reference Figure 1 and Figure 2In some embodiments of the present invention, the furnace body 100 includes a bottom plate 101 and a side plate 102. A plurality of side plates 102 are provided and are connected end to end in sequence. The bottom plate 101 is connected to one end of the plurality of side plates 102. A furnace cavity 110 is defined between the bottom plate 101 and the plurality of side plates 102. The end surface of the bottom plate 101 facing the furnace cavity 110 is a first wall surface 111. The plurality of side plates 102 and the wind shield 200 are spaced apart.

[0044] The wind shield 200 and the stirring fan blade 300 are located between the multiple side panels 102, and the stirring fan blade 300 is arranged opposite to the first wall surface 111 on the bottom plate 101, and the edge of the wind shield 200 is spaced apart from the multiple side panels 102, so that a first space is formed between the wind shield 200 and the first wall surface 111, and a second space is formed on the circumference of the bottom plate 101 surrounding the first space. When the stirring fan blade 300 rotates clockwise in the furnace cavity 110, a first group of cyclones can be formed in the first space, and a second cyclone can be formed in the second space, so that It is possible to form two clockwise cyclones on the bottom plate 101; and when the stirring fan blades 300 rotate counterclockwise in the furnace cavity 110, a third group of cyclones can be formed in the first space, and a fourth cyclone is formed in the second space, so as to form two counterclockwise cyclones on the bottom plate 101. Specifically, four side panels 102 are provided, and the edges of the wind shield 200 are spaced apart from the four side panels 102, so that the airflow stirred by the stirring fan blades 300 can be blown into the furnace cavity 110 from between the wind shield 200 and the side panels 102.

[0045] In some embodiments of the present invention, a second heating element is further included. The second heating element is arranged on the bottom plate 101 or the side plate 102, so that the bottom plate 101 or the side plate 102 can be heated by the second heating element, thereby heating the food and air in the oven cavity 110 and improving the heating effect.

[0046] In some embodiments of the present invention, a plurality of second heating elements are provided.

[0047] By providing a plurality of second heating elements, the heating effect can be further improved.

[0048] Specifically, the plurality of second heating elements are respectively disposed on the four side plates 102 to improve the uniform heating effect.

[0049] Reference Figure 1 and Figure 2In some embodiments of the present invention, the driving assembly 400 includes a driving member 410, a rotating shaft 420 and a fixed bracket 430; the fixed bracket 430 is connected to the outside of the furnace body 100 away from the furnace cavity 110, the driving member 410 is connected to the fixed bracket 430 and to the rotating shaft 420, and the driving member 410 can drive the rotating shaft 420 to rotate alternately clockwise and counterclockwise around the rotation axis; one end of the rotating shaft 420 is passed through the furnace body 100 and is connected to the rotating seat 310.

[0050] The fixing bracket 430 fixes the position of the driving member 410 relative to the furnace body 100 , and the driving member 410 drives the rotating shaft 420 to rotate, thereby driving the rotation of the blade assembly 320 .

[0051] Reference Figure 1 and Figure 2 In some embodiments of the present invention, the driving assembly 400 also includes a balancing gasket 440; the blade group 320 is arranged on the side of the rotating seat 310 close to the wind shield 200, so that the cyclone formed by the stirring fan 300 during the rotation process will be between the rotating seat 310 and the wind shield 200, so as to limit the cyclone from flowing outward from between the rotating seat 310 and the wind shield 200; the balancing gasket 440 is sleeved on the rotating shaft 420 and abuts against the side end of the rotating seat 310 away from the wind shield 200. By setting the balancing gasket 440, the position of the rotating seat 310 relative to the rotating shaft 420 can be adjusted to adjust the balance of the stirring fan 300 during rotation, thereby improving adaptability.

[0052] Specifically, a stopper for installing the balancing washer 440 and the rotating seat 310 is provided on the rotating shaft 420 .

[0053] Specifically, the driving assembly 400 further includes a control member, which is connected to the driving member 410 and can control the driving member 410 to drive the rotating shaft 420 to rotate clockwise and counterclockwise in turn.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cooking device with a hot air stirring function, characterized in that: include: The furnace body (100) is provided with a furnace cavity (110); the furnace cavity (110) has a first wall surface (111); A windshield (200) is disposed in the furnace cavity (110); the windshield (200) is disposed opposite to the first wall surface (111) and is spaced apart from the inner wall of the furnace cavity (110); A stirring fan blade (300) is located between the windshield (200) and the first wall surface (111), and is spaced apart from the windshield (200) and the first wall surface (111); the stirring fan blade (300) includes a rotating seat (310) and a blade group (320); the blade group (320) is arranged on the rotating seat (310); a plurality of blade groups (320) are provided, and are sequentially spaced apart around the rotation axis; the blade group (320) includes two blades (321), and the two blades (321) are symmetrically arranged relative to a direction perpendicular to the rotation axis and are spaced apart; A driving assembly (400) is connected to the rotating seat (310); the driving assembly (400) is capable of driving the rotating seat (310) to rotate clockwise and counterclockwise around the rotating axis alternately; The first heating element (500) is disposed around the circumference of the rotating seat (310).

2. The cooking device with hot air stirring function according to claim 1, characterized in that: The rotating seat (310) is provided with a first opening (311), and a plurality of the first openings (311) are provided and are spaced apart around the rotating axis; one end of the two blades (321) of the same blade group (320) is respectively connected to the side walls of two adjacent first openings (311) that are away from each other.

3. The cooking device with hot air stirring function according to claim 1, characterized in that: The width direction of the blade (321) is arranged parallel to the axial direction of the rotation axis.

4. The cooking device with hot air stirring function according to claim 1, characterized in that: An insert block is provided on the first wall surface (111), and the cross section of the insert block is circular; a slot (210) is provided on the end surface of the wind shield (200) opposite to the first wall surface (111), and the insert block is inserted into the slot (210), and the baffle (200) is spaced apart from the first wall surface (111).

5. The cooking device with hot air stirring function according to claim 1, characterized in that: It also includes a hot air mesh cover (600), a second opening (220) is provided on the windshield (200), and the second opening (220) is arranged opposite to the middle of the rotating seat (310); the hot air mesh cover (600) is arranged at the second opening (220).

6. The cooking device with hot air stirring function according to claim 1, characterized in that: The furnace body (100) comprises a bottom plate (101) and side plates (102), a plurality of side plates (102) are provided and are connected end to end in sequence, and the bottom plate (101) is connected to one end of the plurality of side plates (102); the furnace cavity (110) is defined between the bottom plate (101) and the plurality of side plates (102), the end surface of the bottom plate (101) facing the furnace cavity (110) is a first wall surface (111), and the wind shield (200) and the plurality of side plates (102) are spaced apart.

7. The cooking device with hot air stirring function according to claim 6, characterized in that: It also includes a second heating element, which is arranged on the bottom plate (101) or the side plate (102).

8. The cooking device with hot air stirring function according to claim 7, characterized in that: A plurality of the second heating elements are provided, and the plurality of the second heating elements are respectively provided on the bottom plate (101) and / or the side plate (102).

9. The cooking device with hot air stirring function according to claim 1, characterized in that: The driving assembly (400) includes a driving member (410), a rotating shaft (420) and a fixing bracket (430); the fixing bracket (430) is connected to the outer side of the furnace body (100) away from the furnace cavity (110); the driving member (410) is connected to the fixing bracket (430) and to the rotating shaft (420); the driving member (410) can drive the rotating shaft (420) to rotate clockwise and counterclockwise around the rotating axis alternately; one end of the rotating shaft (420) is passed through the furnace body (100) and is connected to the rotating seat (310).

10. The cooking device with hot air stirring function according to claim 9, characterized in that: The driving assembly further includes a balancing gasket (440); the blade assembly (320) is arranged on a side of the rotating seat (310) close to the windshield (200); the balancing gasket (440) is sleeved on the rotating shaft (420) and abuts against a side end of the rotating seat (310) away from the windshield (200).