Fan, air bellow and integrated cooker

Abstract

The invention belongs to the technical field of integrated stoves, and discloses a draught fan, an air bellow and an integrated stove.The draught fan comprises a first side plate, a second side plate, a surrounding plate and a sound insulation cover, the first side plate and the second side plate are provided with a first air inlet hole and a second air inlet hole respectively, and the surrounding plate and the sound insulation cover are both installed between the first side plate and the second side plate; the surrounding plate surrounds the periphery of the first air inlet hole and the periphery of the second air inlet hole, a first notch is formed in the surrounding plate, the sound insulation cover surrounds the periphery of the surrounding plate, a second notch is formed in the sound insulation cover, the first notch is right opposite to the second notch, and the first notch can be communicated with the outside through the exhaust seat. The sound insulation cover is arranged on the outer side of the surrounding plate in a wrapping mode, so that sound wave transmission can be effectively isolated, absorbed and attenuated, noise spread to the external environment is reduced, and the influence on the use experience of a user is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated stoves, and in particular to a fan, a bellows and an integrated stove. Background Art

[0002] Integrated stove, also known as environmentally friendly stove or integrated environmentally friendly stove, is a kitchen appliance that integrates multiple functions such as range hood, gas stove, disinfection cabinet, storage cabinet, etc. It has the advantages of saving space, good fume extraction effect, energy saving, low consumption and environmental protection.

[0003] In the prior art, integrated stoves generally use centrifugal fans. Specifically, the fan includes two opposing side panels, each with an air inlet. A panel is installed between the two side panels. The panel surrounds the air inlet and has a notch formed in the panel, which is connected to the exhaust socket. An impeller is installed on the side of the panel closest to the air inlet. When the impeller is operating, oil smoke is drawn into the fan and discharged through the notch to the exhaust socket, from which it is then discharged outdoors. However, in the prior art, when oil smoke enters the fan through the impeller, it impacts the panel, generating a loud noise. Most of the noise is transmitted to the outside through the panel, affecting the user experience.

[0004] Therefore, the above problems need to be solved urgently. Summary of the Invention

[0005] The purpose of the present invention is to provide a fan, a bellows and an integrated stove to solve the problem that when oil smoke enters the fan through the impeller, a large noise is generated, and most of the noise is transmitted to the outside through the enclosure, thereby affecting the user experience.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] In one aspect, the present invention provides a fan, comprising a first side panel and a second side panel, the first side panel and the second side panel being arranged opposite each other, a first air inlet hole and a second air inlet hole being respectively provided on the first side panel and the second side panel, the first air inlet hole being arranged opposite each other, and the fan further comprising:

[0008] The enclosure and the soundproof cover are both installed between the first side panel and the second side panel. The enclosure is constructed around the outer periphery of the first air inlet and the second air inlet, and a first notch is formed on the enclosure. The soundproof cover is constructed around the outer periphery of the enclosure, and a second notch is formed on the soundproof cover. The first notch is directly opposite to the second notch. An impeller is installed on the side of the enclosure away from the soundproof cover, and the first notch can be connected to the outside through the exhaust seat.

[0009] Preferably, a plurality of microholes are distributed on the enclosure near the first notch.

[0010] Preferably, the fan is installed inside the chassis. Vibration damping brackets are installed on one side of the first side plate facing away from the second side plate and on one side of the second side plate facing away from the first side plate. Vibration damping pads are installed on the vibration damping brackets. The vibration damping pads are made of rubber material and are in contact with the chassis.

[0011] Preferably, there are two or more of the vibration damping brackets installed on one side of the first side plate facing away from the second side plate and on one side of the second side plate facing away from the first side plate. The vibration damping pads are installed on all the vibration damping brackets.

[0012] Preferably, the fan further includes a connecting flange which is installed on the sound insulation cover and surrounds the outer periphery of the second notch. One side of the connecting flange facing the sound insulation cover is communicated with the first notch, and the side of the connecting flange away from the sound insulation cover can be communicated with the outside through the exhaust seat.

[0013] Preferably, the surrounding plate is disconnected at the head and tail to form the first notch, and the sound insulation cover is disconnected at the head and tail to form the second notch. The first notch is flush with or extends out of the second notch.

[0014] Preferably, a first extension plate extends from one side of the connecting flange towards the surrounding plate. The first extension plate is inserted between the surrounding plate and the sound insulation cover and abuts between the first edge of the surrounding plate for forming the first notch and the second edge of the sound insulation cover for forming the second notch.

[0015] Preferably, the surrounding plate is in a spiral shape and surrounds the outer periphery of the first air inlet hole and the second air inlet hole.

[0016] On the other hand, the present invention also provides an air box, which includes a chassis and the fan as described above. The fan is installed inside the chassis, and an air inlet is provided on the chassis.

[0017] On the other hand, the present invention also provides an integrated stove, which includes a cooking appliance and the air box as described above. The air box is configured to extract the oil fume generated during the operation of the cooking appliance and discharge the oil fume to the outside.

[0018] The beneficial effects of the present invention: In the present invention, a sound insulation cover is provided in a covering manner on the outside of the surrounding plate, so that sound waves can be effectively isolated, absorbed and attenuated, thereby reducing the noise transmitted to the external environment and avoiding affecting the user experience. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the fan in an embodiment of the present invention;

[0020] Figure 2 is the explosion diagram of the fan in the embodiment of the present invention;

[0021] Figure 3 is Figure 2 the partial enlarged view at position A in

[0022] Figure 4 is Figure 2 the partial enlarged view at position B in

[0023] Figure 5 is Figure 2 the partial enlarged view at position C in

[0024] Figure 6 is Figure 2 the partial enlarged view at position D in

[0025] Figure 7 is Figure 2 the partial enlarged view at position E in

[0026] Figure 8 is the structural schematic diagram of the enclosing plate in the embodiment of the present invention;

[0027] Figure 9 is the structural schematic diagram of the sound insulation cover in the embodiment of the present invention;

[0028] Figure 10 is the structural schematic diagram of the stamping die, the first side plate and the sound insulation cover in the embodiment of the present invention;

[0029] Figure 11 is the schematic diagram after putting the first side plate and the sound insulation cover into the stamping die in the embodiment of the present invention;

[0030] Figure 12 is the schematic diagram after putting the first side plate, the enclosing plate, the sound insulation cover and the second side plate into the stamping die in the embodiment of the present invention;

[0031] Figure 13 is the structural schematic diagram of the first side plate with a 90°-folded vertical edge formed by stamping at the edge in the embodiment of the present invention;

[0032] Figure 14 is Figure 13 the partial enlarged view at position F in

[0033] Figure 15 is the structural schematic diagram of the first side plate with a 70°-75°-folded bevel edge formed by stamping at the edge in the embodiment of the present invention;

[0034] Figure 16 is Figure 15 the partial enlarged view at position G in

[0035] Figure 17Schematic diagram of the first side plate and the sound insulation cover in the embodiment of the present invention, where the first flanging is embedded in the first groove;

[0036] Figure 18 is Figure 17 Partial enlarged view at H in;

[0037] Figure 19 Schematic diagram of the first side plate and the sound insulation cover after being placed in a stamping die for stamping in the embodiment of the present invention;

[0038] Figure 20 is Figure 19 Partial enlarged view at I in;

[0039] Figure 21 Schematic diagram of the first side plate, the surrounding plate, the sound insulation cover and the second side plate in the embodiment of the present invention, where the second flanging is embedded in the second groove;

[0040] Figure 22 is Figure 21 Partial enlarged view at J in;

[0041] Figure 23 Schematic diagram of the first side plate, the surrounding plate, the sound insulation cover and the second side plate after being placed in a stamping die for stamping in the embodiment of the present invention;

[0042] Figure 24 is Figure 23 Partial enlarged view at K in.

[0043] In the figure:

[0044] 110, first side plate; 111, first air inlet hole; 112, vibration damping bracket; 1121, vibration damping pad; 113, first edge wrapping; 114, first groove; 1141, first anti-withdrawal surface; 115, first avoidance groove; 116, first groove;

[0045] 120, second side plate; 121, second air inlet hole; 122, second positioning groove; 123, second edge wrapping; 124, second groove; 1241, second anti-withdrawal surface; 125, second avoidance groove; 126, second groove;

[0046] 130, surrounding plate; 131, first notch; 132, micropores; 1331, first edge; 1332, second edge; 134, first positioning plate; 135, second positioning plate;

[0047] 140, sound insulation cover; 141, second notch; 1421, third edge; 1422, fourth edge; 143, first flanging; 144, second flanging;

[0048] 150, connecting flange; 1511, first plate part; 152, third extension plate;

[0049] 310. Upper module; 311. Second locking block; 320. Lower module; 321. First positioning block; 3211. First locking groove; 3212. First cylinder; 3213. First accommodating groove; 322. Second positioning block; 3221. Second locking groove; 3222. Second cylinder; 3223. Second accommodating groove; 323. Inner wall positioning block. Detailed implementation manners

[0050] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. In addition, it should be noted that, for the sake of description, only the parts related to the present invention are shown in the drawings, rather than all the structures.

[0051] In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0052] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0053] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0054] In this embodiment, an integrated stove is provided. The integrated stove includes a cooking appliance and an air box. The air box is configured to extract the oil fume generated during the operation of the cooking appliance and discharge the oil fume to the outside. Among them, the air box includes a chassis and a fan. The fan is installed inside the chassis. An air inlet is provided on the chassis, and the air inlet of the chassis is communicated with the space above the operation table of the cooking appliance through an exhaust duct.

[0055] Please refer to Figures 1 to 24 , the fan in this embodiment includes a first side plate 110 and a second side plate 120. The first side plate 110 and the second side plate 120 are arranged oppositely. A first air inlet hole 111 and a second air inlet hole 121 are respectively provided on the first side plate 110 and the second side plate 120. The first air inlet hole 111 and the second air inlet hole 121 are arranged oppositely.

[0056] In addition to the first side plate 110 and the second side plate 120, the fan further includes a surrounding plate 130 and a sound insulation cover 140. The surrounding plate 130 and the sound insulation cover 140 are both installed between the first side plate 110 and the second side plate 120. The surrounding plate 130 surrounds the outer periphery of the first air inlet hole 111 and the second air inlet hole 121, and a first notch 131 is formed on the surrounding plate 130. The sound insulation cover 140 surrounds the outer periphery of the surrounding plate 130, and a second notch 141 is formed on the sound insulation cover 140. The first notch 131 and the second notch 141 are directly opposite to each other, so as to expose the first notch 131. An impeller (not shown in the figure) is installed on the side of the surrounding plate 130 facing away from the sound insulation cover 140. The impeller is coaxially arranged with the first air inlet hole 111 and the second air inlet hole 121. The first notch 131 can be communicated with the outside through an exhaust seat (not shown in the figure). In this embodiment, a wind channel is formed on the side of the surrounding plate 130 facing away from the sound insulation cover 140. When the impeller works, the oil fume is first sucked into the chassis through the exhaust duct, then sucked into the wind channel of the fan through the first air inlet hole 111 and the second air inlet hole 121, and then sent into the exhaust seat through the first notch 131 and discharged to the outside through the exhaust seat.

[0057] Based on the above, in this embodiment, a sound insulation cover 140 is arranged on the outside of the surrounding plate 130 in a covering manner, so as to effectively isolate, absorb and attenuate the transmission of sound waves, reduce the noise transmitted to the external environment, and thus avoid affecting the user experience.

[0058] It should be noted that since the specific structure and working principle of the impeller are both prior arts, they will not be elaborated in this embodiment.

[0059] In addition, it is worth noting that, in the present embodiment, the enclosure 130 is in a volute shape and is constructed around the outer periphery of the first air inlet hole 111 and the second air inlet hole 121, that is, in the present embodiment, the enclosure 130 is a volute structure, which can effectively reduce the noise generated by the impact of oil smoke, thereby further reducing the noise transmitted to the external environment, and further avoiding affecting the user's experience.

[0060] In addition, in this embodiment, a first positioning plate 134 is provided on the edge of the side of the enclosure 130 close to the first side plate 110, and a first positioning groove (not shown in the figure) is provided on the first side plate 110. The first positioning groove is constructed around the outer periphery of the first air inlet 111, and the first positioning plate 134 is accommodated in the first positioning groove. A second positioning plate 135 is provided on the edge of the side of the enclosure 130 close to the second side plate 120, and a second positioning groove 122 is provided on the second side plate 120. The second positioning groove 122 is constructed around the outer periphery of the second air inlet 121, and the second positioning plate 135 is accommodated in the second positioning groove 122. The first positioning groove and the second positioning groove 122 can jointly position the enclosure 130, thereby ensuring that the enclosure 130 can be accurately assembled to the preset position when assembling the fan. Specifically, the enclosure 130 is first spliced to the first side panel 110 through the first positioning plate 134. Specifically, the first positioning plate 134 is placed correspondingly in the first positioning groove. Then, the second side panel 120 is spliced to the other side of the enclosure 130. Specifically, the second positioning plate 135 is placed correspondingly in the second positioning groove 122. At this point, the enclosure 130 is assembled between the first side panel 110 and the second side panel 120.

[0061] Of course, in other optional embodiments, the second side panel 120 may be assembled first, and then the first side panel 110 may be assembled. This is not specifically limited in this embodiment.

[0062] Based on the above, the first positioning plate 134 is sunk into the first positioning groove, and the second positioning plate 135 is sunk into the second positioning groove 122. In this embodiment, the depth of the first positioning groove is equal to the thickness of the first positioning plate 134, and the depth of the second positioning groove 122 is equal to the thickness of the second positioning plate 135. Therefore, when the enclosure 130 is assembled between the first side panel 110 and the second side panel 120, there will be no step difference in the air duct formed on the side of the enclosure 130 away from the sound insulation cover 140, that is, the cavity wall of the air duct is flat and has no step difference, thereby avoiding affecting the flow of oil smoke in the air duct, that is, this embodiment can reduce the impact between the oil smoke and the enclosure 130, the first side panel 110 and the second side panel 120, thereby further reducing the noise generated during the operation of the fan, and further avoiding affecting the user's experience.

[0063] Moreover, since the first positioning plate 134 is sunk into the first positioning groove and the second positioning plate 135 is sunk into the second positioning groove 122, there is no gap between the surrounding plate 130 and the first side plate 110 and the second side plate 120. Therefore, it is possible to avoid the high-frequency whistling noise generated by the oil fume passing through the gap, and further reduce the noise generated during the operation of the fan.

[0064] In addition, it is worth noting that to ensure that the side plates can be further stably installed between the first side plate 110 and the second side plate 120, in this embodiment, after the first positioning plate 134 is spliced onto the first side plate 110, the first positioning plate 134 is welded to the first side plate 110 by medium-frequency projection welding. After the second positioning plate 135 is spliced onto the second side plate 120, the second positioning plate 135 is welded to the second side plate 120 by medium-frequency projection welding. Since medium-frequency projection welding is used for welding in this embodiment, the weld between the first positioning plate 134 and the first side plate 110 will not be exposed outside the first positioning groove, and the weld between the second positioning plate 135 and the second side plate 120 will not be exposed outside the second positioning groove 122, so as to avoid forming a step difference in the air duct.

[0065] It can be understood that in other alternative embodiments, the first positioning plate 134 and the second positioning plate 135 can also be fixed by riveting. However, it is worth noting that the rivets will not protrude from the first positioning groove and the second positioning groove 122. The fixing method of the first positioning plate 134 and the second positioning plate 135 in this embodiment is not specifically limited.

[0066] Based on the above-mentioned content, the surrounding plate 130 is of a volute structure. Based on this, in this embodiment, the first positioning plate 134 and the second positioning plate 135 are also volute-shaped. Correspondingly, the first positioning groove and the second positioning groove 122 are also volute-shaped.

[0067] Furthermore, in this embodiment, first flanges 113 and second flanges 123 are respectively formed at the edges of the first side plate 110 and the second side plate 120. A first turned edge 143 is formed at the edge of the sound insulation cover 140 on the side close to the first side plate 110, and the first turned edge 143 is fitted into the first flange 113. That is, the sound insulation cover 140 and the first side plate 110 are connected by a tenon joint, so as to ensure that there is no gap at the docking position between the sound insulation cover 140 and the first side plate 110. A second turned edge 144 is formed at the edge of the sound insulation cover 140 on the side close to the second side plate 120, and the second turned edge 144 is fitted into the second flange 123. That is, the sound insulation cover 140 and the second side plate 120 are also connected by a tenon joint, so as to ensure that there is no gap at the docking position between the sound insulation cover 140 and the second side plate 120. Based on the above, in this embodiment, sound waves can be further effectively isolated, absorbed and attenuated, so as to further reduce the noise transmitted to the external environment, and further avoid affecting the user experience.

[0068] In addition, a first groove 114 is further formed at the edge of the first side plate 110. The first groove 114 is located inside the first flange 113. The position of the sound insulation cover 140 close to the first turned edge 143 is attached to the outer side of the groove wall of the first groove 114, so as to further ensure that there is no gap at the docking position between the sound insulation cover 140 and the first side plate 110. A second groove 124 is formed at the edge of the second side plate 120. The second groove 124 is located inside the second flange 123. The position of the sound insulation cover 140 close to the second turned edge 144 is attached to the outer side of the groove wall of the second groove 124, so as to further ensure that there is no gap at the docking position between the sound insulation cover 140 and the second side plate 120, and further effectively isolate, absorb and attenuate the transmission of sound waves, and further reduce the noise transmitted to the external environment.

[0069] In addition to the first side plate 110, the second side plate 120, the surrounding plate 130 and the sound insulation cover 140, the fan further includes a connecting flange 150. The connecting flange 150 is installed on the sound insulation cover 140 and surrounds the outer periphery of the second notch 141. The side of the connecting flange 150 facing the sound insulation cover 140 communicates with the first notch 131. The side of the connecting flange 150 away from the sound insulation cover 140 can communicate with the outside through an exhaust seat. That is, in this embodiment, the air duct formed on the side of the surrounding plate 130 facing away from the sound insulation cover 140 is connected in series with the exhaust seat through the connecting flange 150. Since the connecting flange 150 surrounds the outer periphery of the second notch 141, in this embodiment, the sound waves transmitted through the contact position between the connecting flange 150 and the sound insulation cover 140 can be effectively isolated, absorbed and attenuated, and further reduce the noise transmitted to the external environment.

[0070] Based on the above, in this embodiment, the enclosure panel 130 is disconnected at its head and tail to form a first notch 131, and the sound insulation cover 140 is disconnected at its head and tail to form a second notch 141. The first notch 131 is flush with or extends beyond the second notch 141. In other words, the first edge of the enclosure panel 130 for forming the first notch 131 is flush with the second edge of the sound insulation cover 140 for forming the second notch 141, or the first edge of the enclosure panel 130 for forming the first notch 131 extends beyond the sound insulation cover 140 through the second notch 141, so that the first notch 131 is directly communicated with the side of the connecting flange 150 facing the sound insulation cover 140.

[0071] Based on the above, in this embodiment, the first notch 131 is directly communicated with the connecting flange 150, that is, the air duct formed on the side of the enclosure panel 130 facing away from the sound insulation cover 140 is directly communicated with the connecting flange 150, thereby forming a channel for the oil fume to flow. Preferably, the connecting flange 150 extends towards the side close to the enclosure panel 130 to form a first extension plate. The first extension plate is inserted between the enclosure panel 130 and the sound insulation cover 140 and abuts between the first edge of the enclosure panel 130 for forming the first notch 131 and the second edge of the sound insulation cover 140 for forming the second notch 141. On the one hand, in this embodiment, the first extension plate is used to close the above-mentioned channel for the oil fume to flow, so as to prevent the oil fume from leaking between the enclosure panel 130 and the sound insulation cover 140 and further reduce the noise transmitted to the external environment. On the other hand, in this embodiment, the first extension plate is pressed and limited between the first edge and the second edge, rather than passing through the first notch 131 and being located between the head and tail ends of the enclosure panel 130. Therefore, in this embodiment, it can be further ensured that the air duct formed on the side of the enclosure panel 130 facing away from the sound insulation cover 140 is unobstructed, thereby further preventing the influence on the flow of the oil fume in the air duct and further reducing the noise generated during the operation of the fan.

[0072] Specifically, since the first notch 131 is formed by disconnecting the head and tail of the enclosure panel 130, and the second notch 141 is formed by disconnecting the head and tail of the sound insulation cover 140, in this embodiment, the first edge includes a first edge 1331 and a second edge 1332, and the second edge includes a third edge 1421 and a fourth edge 1422. Correspondingly, the first extension plate includes a first plate portion 1511 and a second plate portion (not shown in the figure). The first plate portion 1511 and the second plate portion are respectively formed on both sides of the connecting flange 150 along the arrangement direction of the first edge 1331 and the second edge 1332. The first plate portion 1511 abuts between the first edge 1331 and the third edge 1421, and the second plate portion abuts between the second edge 1332 and the fourth edge 1422.

[0073] Further, the connecting flange 150 extends toward the side close to the enclosing plate 130 to form a second extension plate (not shown in the figure) and a third extension plate 152. The second extension plate is fixedly connected to the side of the first side plate 110 away from the second side plate 120, thereby closing the gap between the connecting flange 150 and the position on the first side plate 110 opposite to the first notch 131. The third extension plate 152 is fixedly connected to the side of the second side plate 120 away from the first side plate 110, thereby closing the gap between the connecting flange 150 and the position on the second side plate 120 opposite to the first notch 131. On the one hand, it realizes the complete closure of the channel for oil fume flow mentioned above, thereby further reducing the noise transmitted to the external environment. On the other hand, since the second extension plate is located on the side of the first side plate 110 away from the second side plate 120, and the third extension plate 152 is located on the side of the second side plate 120 away from the first side plate 110, therefore, in this embodiment, it can further ensure that the air duct formed on the side of the enclosing plate 130 away from the sound insulation cover 140 is unobstructed, thereby further avoiding affecting the flow of oil fume in the air duct, and further reducing the noise generated during the operation of the fan.

[0074] It should be noted that the first side plate 110 and the second side plate 120 are respectively provided with a first avoidance groove 115 and a second avoidance groove 125. The first extension plate is inserted into the first avoidance groove 115 and the second avoidance groove 125. Based on the content mentioned above, it can be understood that in this embodiment, there are two first avoidance grooves 115 on the first side plate 110 and two second avoidance grooves 125 on the second side plate 120. The two first avoidance grooves 115 and the two second avoidance grooves 125 correspond one by one. Among them, the first plate portion 1511 is inserted into one of the first avoidance grooves 115 and one of the second avoidance grooves 125, and the second plate portion is inserted into the other first avoidance groove 115 and the other second avoidance groove 125. The first avoidance groove 115 and the second avoidance groove 125 can position the connecting flange 150, so that when assembling, the connecting flange 150 can be directly inserted into the first side plate 110 and the second side plate 120, and the connecting flange 150 inserted into the first side plate 110 and the second side plate 120 is spliced together with the enclosing plate 130 and the sound insulation cover 140. Based on the above, in this embodiment, the assembly process of the connecting flange 150 is simple.

[0075] It should be noted that in this embodiment, the connecting flange 150 is fixed to the sound insulation cover 140 by riveting, and the rivets sink into the connecting flange 150, so as to prevent the rivets from protruding from the end face of the connecting flange 150 away from the sound insulation cover 140, and further prevent the connection between the connecting flange 150 and the exhaust seat from being affected. Similarly, in this embodiment, the second extension plate is fixedly connected to the side of the first side plate 110 away from the second side plate 120 and the third extension plate 152 is fixedly connected to the side of the second side plate 120 away from the first side plate 110 by riveting.

[0076] Further, a plurality of micropores 132 are distributed at a position on the enclosing plate 130 close to the first notch 131. That is, in this embodiment, in a section of the enclosing plate 130 close to the first notch 131, the plate wall is designed as a microporous noise reduction structure, so as to further reduce the noise transmitted to the external environment, and further avoid affecting the user experience. Based on the above-mentioned content, in this embodiment, a plurality of micropores 132 are distributed on both the head and tail sides of the enclosing plate 130, that is, microporous noise reduction structures are provided on both the head and tail sides of the enclosing plate 130.

[0077] In addition, shock-absorbing brackets 112 are installed on both the side of the first side plate 110 away from the second side plate 120 and the side of the second side plate 120 away from the first side plate 110. A shock-absorbing pad 1121 is installed on the shock-absorbing bracket 112. The shock-absorbing pad 1121 is made of rubber material, and the shock-absorbing pad 1121 abuts against the chassis, so as to effectively buffer the vibration generated during the operation of the fan, reduce the occurrence of mechanical resonance, and further reduce the noise.

[0078] Further, two or more shock-absorbing brackets 112 are installed on both the side of the first side plate 110 away from the second side plate 120 and the side of the second side plate 120 away from the first side plate 110. Shock-absorbing pads 1121 are installed on all the shock-absorbing brackets 112 to further effectively buffer the vibration generated during the operation of the fan, thereby further reducing the occurrence of mechanical resonance and further reducing the noise.

[0079] Based on the above-mentioned content, the assembly process of the fan in this embodiment is described:

[0080] First, the first flanging 143 is fitted into the first edge wrapping 113. Then, the enclosing plate 130 is spliced to the first side plate 110 through the first positioning plate 134, and the first positioning plate 134 is welded to the first side plate 110. Then, the second flanging 144 is fitted into the second edge wrapping 123, and at the same time, the second side plate 120 is spliced to the side of the enclosing plate 130 away from the first side plate 110. Then, the second positioning plate 135 is welded to the second side plate 120, and thus the assembly of the first side plate 110, the enclosing plate 130, the sound insulation cover 140 and the second side plate 120 is completed.

[0081] Among them, in this embodiment, the fitting of the first flanging 143 and the first edge wrapping 113 and the fitting of the second flanging 144 and the second edge wrapping 123 are completed through a stamping die. Specifically, as Figures 10 to 12 shown, the stamping die includes an upper module 310 and a lower module 320. A first locking block (not shown in the figure) and a second locking block 311 are provided on the upper module 310. The lower module 320 includes a first positioning block 321, a second positioning block 322, and an inner wall positioning block 323. First locking grooves 3211 and second locking grooves 3221 are respectively provided on the first positioning block 321 and the second positioning block 322. The first positioning block 321 and the second positioning block 322 can move relatively or away from each other. Specifically, a first cylinder 3212 is provided on one side of the first positioning block 321 away from the second positioning block 322, and a second cylinder 3222 is provided on one side of the second positioning block 322 away from the first positioning block 321. The first cylinder 3212 can drive the first positioning block 321 to move, and the second cylinder 3222 can drive the second positioning block 322 to move. A first accommodating groove 3213 is provided on the first positioning block 321, and a second accommodating groove 3223 is provided on the second positioning block 322. When the first positioning block 321 and the second positioning block 322 move relatively until they abut against each other, the first accommodating groove 3213 and the second accommodating groove 3223 are spliced to form a cavity.

[0082] Please refer to Figures 13 to 24 , and in combination with Figures 10 to 12, for the first side plate 110, first, a vertical edge folded 90° and a first groove 114 are formed by stamping at the edge of the first side plate 110. A first anti-retreat surface 1141 is formed on the outer side of the groove wall of the first groove 114. Then, the 90° vertical edge formed at the edge of the first side plate 110 is stamped again, so as to adjust the vertical edge to an inclined edge with an included angle of 70° - 75° with the surface of the first side plate 110. Then, the first flange 143 on the sound insulation cover 140 is embedded into the first groove 116 between the inclined edge and the first anti-retreat surface 1141, and the position of the sound insulation cover 140 close to the first flange 143 is attached to the first anti-retreat surface 1141. Then, the first side plate 110 and the sound insulation cover 140 are placed in a stamping die for stamping. Specifically, the first side plate 110 is sleeved on the outer periphery of the inner wall positioning block 323 through the first air inlet hole 111, that is, the inner wall positioning block 323 can position the first side plate 110 and the sound insulation cover 140. Then, the first positioning block 321 and the second positioning block 322 move relatively, so as to splice and form a cavity. The cavity wall is attached to the outer wall of the sound insulation cover 140. At the same time, the first positioning block 321 and the second positioning block 322 are jointly attached below the inclined edge on the first side plate 110. Then, the upper module 310 descends, and the first locking block and the second locking block 311 are respectively inserted into the first locking groove 3211 and the second locking groove 3221, so as to close the mold with the lower module 320. The upper module 310 can press against the upper part of the first side plate 110. As the upper module 310 gradually descends, the included angle between the inclined edge and the surface of the first side plate 110 gradually decreases until it is formed into a first edge wrapping 113, which wraps the first flange 143. Then, the upper module 310 moves away from the lower module 320, and the first positioning block 321 and the second positioning block 322 move away from each other, so as to take out the first side plate 110 and the sound insulation cover 140.

[0083] After fitting the first flange 143 into the first edge wrapping 113, the first positioning plate 134 is correspondingly placed into the first positioning groove, so as to splice the surrounding plate 130 to the first side plate 110. Then, the first positioning plate 134 is welded to the first side plate 110 by an intermediate frequency projection spot welding process.

[0084] After welding the first positioning plate 134 to the first side plate 110, the second side plate 120 is spliced to the side of the surrounding plate 130 away from the first side plate 110.

[0085] After that, similarly, for the second side plate 120, a vertical edge folded at 90° and a second groove 124 are first stamped and formed at the edge of the second side plate 120. A second anti-retreat surface 1241 is formed on the outer side of the groove wall of the second groove 124. After that, the 90° vertical edge formed at the edge of the second side plate 120 is stamped again, so as to adjust the vertical edge to an inclined edge with an included angle of 70°-75° with the surface of the second side plate 120. After that, the second flanging 144 on the sound insulation cover 140 is embedded into the second groove 126 between the inclined edge and the second anti-retreat surface 1241, and the position on the sound insulation cover 140 close to the second flanging 144 is attached to the second anti-retreat surface 1241. After that, the first side plate 110, the surrounding plate 130, the sound insulation cover 140 and the second side plate 120 are placed in a stamping die for stamping. Specifically, the first side plate 110 is sleeved on the outer periphery of the inner wall positioning block 323 through the first air inlet hole 111, and the second side plate 120 is sleeved on the outer periphery of the inner wall positioning block 323 through the second air inlet hole 121. Moreover, the first side plate 110 is located on the side of the second side plate 120 away from the upper module 310. The inner wall positioning block 323 can position the first side plate 110, the surrounding plate 130, the sound insulation cover 140 and the second side plate 120. After that, the first positioning block 321 and the second positioning block 322 move relatively, so as to be spliced to form a cavity. The cavity wall is attached to the outer wall of the sound insulation cover 140. At the same time, the first positioning block 321 and the second positioning block 322 are jointly attached to the lower side of the inclined edge on the second side plate 120. After that, the upper module 310 descends, and the first locking block and the second locking block 311 are respectively inserted into the first locking groove 3211 and the second locking groove 3221, so as to be clamped with the lower module 320. The upper module 310 can press against the upper side of the second side plate 120. As the upper module 310 gradually descends, the included angle between the inclined edge and the surface of the second side plate 120 gradually decreases until the second edge wrapping 123 is formed and wraps the second flanging 144. After that, the upper module 310 moves away from the lower module 320, and the first positioning block 321 and the second positioning block 322 move away from each other, so as to take out the first side plate 110, the surrounding plate 130, the sound insulation cover 140 and the second side plate 120.

[0086] After the assembly of the first side plate 110, the surrounding plate 130, the sound insulation cover 140 and the second side plate 120 is completed, the connecting flange 150 is inserted into the first side plate 110 and the second side plate 120 in sequence, and the connecting flange 150 is fixed to the sound insulation cover 140 by riveting. At the same time, the second extension plate is fixedly connected to the side of the first side plate 110 away from the second side plate 120 by riveting, and the third extension plate 152 is fixedly connected to the side of the second side plate 120 away from the first side plate 110 by riveting.

[0087] Finally, the damping bracket 112 is installed by riveting.

[0088] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A blower, comprising a first side plate (110) and a second side plate (120), the first side plate (110) and the second side plate (120) being oppositely arranged, a first air inlet hole (111) and a second air inlet hole (121) being respectively arranged on the first side plate (110) and the second side plate (120), the first air inlet hole (111) and the second air inlet hole (121) being oppositely arranged, characterized in that, The blower further includes: A shroud (130) and a soundproof cover (140), both installed between the first side plate (110) and the second side plate (120). The shroud (130) surrounds the outer periphery of the first air inlet hole (111) and the second air inlet hole (121), and a first notch (131) is formed on the shroud (130). The soundproof cover (140) surrounds the outer periphery of the shroud (130), and a second notch (141) is formed on the soundproof cover (140). The first notch (131) is aligned with the second notch (141). An impeller is installed on the side of the shroud (130) facing away from the soundproof cover (140), and the first notch (131) can communicate with the outside through an exhaust seat.

2. The fan according to claim 1, wherein A plurality of micropores (132) are distributed at a position on the shroud (130) near the first notch (131).

3. The fan according to claim 1, characterized in that, The blower is installed in a chassis. Vibration damping brackets (112) are installed on both the side of the first side plate (110) facing away from the second side plate (120) and the side of the second side plate (120) facing away from the first side plate (110). A vibration damping pad (1121) is installed on the vibration damping bracket (112). The vibration damping pad (1121) is made of a rubber material and abuts against the chassis.

4. The blower according to claim 3, characterized in that, Two or more of the vibration damping brackets (112) are installed on both the side of the first side plate (110) facing away from the second side plate (120) and the side of the second side plate (120) facing away from the first side plate (110). The vibration damping pad (1121) is installed on all the vibration damping brackets (112).

5. The fan according to claim 1, wherein The blower further includes a connecting flange (150). The connecting flange (150) is installed on the soundproof cover (140) and surrounds the outer periphery of the second notch (141). The side of the connecting flange (150) facing the soundproof cover (140) communicates with the first notch (131), and the side of the connecting flange (150) away from the soundproof cover (140) can communicate with the outside through the exhaust seat.

6. The blower according to claim 5, characterized in that, The shroud (130) is disconnected at the head and tail to form the first notch (131), and the soundproof cover (140) is disconnected at the head and tail to form the second notch (141). The first notch (131) is flush with or extends beyond the second notch (141).

7. The fan according to claim 6, characterized in that, The connecting flange (150) extends towards the side close to the shroud (130) to form a first extension plate. The first extension plate is inserted between the shroud (130) and the soundproof cover (140) and abuts between the first edge of the shroud (130) for forming the first notch (131) and the second edge of the soundproof cover (140) for forming the second notch (141).

8. The fan according to claim 1, wherein The shroud (130) is in a spiral shape surrounding the outer periphery of the first air inlet hole (111) and the second air inlet hole (121).

9. Bellows, characterized in that, It includes a chassis and a blower as described in any one of claims 1-8, the blower is installed inside the chassis, and an air inlet is provided on the chassis.

10. Integrated stove, characterized in that, It includes a cooking stove and a bellows as described in claim 9, the bellows is configured to extract the oil fume generated during the operation of the cooking stove and discharge the oil fume to the outside.

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