Fan, air bellow and integrated cooker

Abstract

The utility model belongs to integrated cooker technical field discloses a kind of fan, air bellow and integrated cooker, fan includes first side plate, second side plate and first baffle, the edge of the side of first baffle close to first side plate is provided with first locating plate, first side plate is provided with first locating groove, the edge of the side of first baffle close to second side plate is provided with second locating plate, second side plate is provided with second locating groove.First locating plate sinks into first locating groove, second locating plate sinks into second locating groove, the depth of first locating groove is equal to the thickness of first locating plate, and the depth of second locating groove is equal to the thickness of second locating plate, it does not exist step difference in the air duct formed in the side of first baffle away from second baffle, to reduce the impact between oil fume and first baffle, first side plate and second side plate, to further reduce the noise generated in the working process of fan, to avoid affecting user's use experience.

Description

Technical Field

[0001] This utility model relates to the field of integrated stove technology, and in particular to a fan, air box and integrated stove. Background Technology

[0002] An integrated cooktop, also known as an eco-friendly cooktop or integrated eco-friendly cooktop, is a kitchen appliance that combines multiple functions such as a range hood, gas stove, disinfection cabinet, and storage cabinet. It has advantages such as saving space, good smoke extraction effect, energy saving, low consumption, and environmental protection.

[0003] In existing technologies, integrated cooktops generally use centrifugal fans. Specifically, the fan includes two opposing side plates, each with an air inlet. A surrounding plate is installed between the two side plates, enclosing the air inlets. The side of the surrounding plate closest to the air inlets forms an air duct, within which an impeller is installed. A notch is formed in the surrounding plate, communicating with an exhaust seat. When the impeller operates, fumes are drawn into the air duct and discharged through the notch to the exhaust seat, which then vents them outdoors. In existing technologies, the side plates are flat, while the surrounding plate is directly welded to them. The weld seam creates a step difference within the air duct, affecting the flow of fumes within the duct. This increases the impact between the fumes and the surrounding plate and side plates, leading to increased noise during fan operation and negatively impacting the user experience.

[0004] Therefore, the above problems urgently need to be solved. Utility Model Content

[0005] The purpose of this utility model is to provide a fan, a fan box, and an integrated stove to reduce the noise generated during the operation of the fan, thereby avoiding affecting the user's experience.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A fan includes a first side plate, a second side plate, and a first enclosure plate. The first side plate and the second side plate are arranged opposite to each other, and the first side plate and the second side plate are respectively provided with a first air inlet and a second air inlet. The first enclosure plate is installed between the first side plate and the second side plate, and the first enclosure plate surrounds the outer periphery of the first air inlet and the second air inlet. A first notch is formed on the first enclosure plate, and the first notch communicates with the outside through an exhaust seat. An impeller is installed on the side of the first enclosure plate near the first air inlet and the second air inlet. A first positioning plate is provided on the edge of the first enclosure plate near the first side plate. A first positioning groove is provided on the first side plate, and the first positioning groove surrounds the outer periphery of the first air inlet. The first positioning plate is accommodated in the first positioning groove, and the depth of the first positioning groove is equal to the thickness of the first positioning plate.

[0008] A second positioning plate is provided on the edge of the first enclosure near the second side plate. A second positioning groove is provided on the second side plate. The second positioning groove surrounds the outer periphery of the second air inlet. The second positioning plate is housed in the second positioning groove. The depth of the second positioning groove is equal to the thickness of the second positioning plate.

[0009] Preferably, the fan further includes a second enclosure plate, which is installed between the first side plate and the second side plate. The second enclosure plate surrounds the outer periphery of the first enclosure plate, and a second notch is formed on the second enclosure plate, which is directly opposite the first notch.

[0010] Preferably, the edges of the first side panel and the second side panel are respectively formed with a first edging and a second edging, and the edge of the second panel near the first side panel is formed with a first flange, which is fitted into the first edging. The edge of the second panel near the second side panel is formed with a second flange, which is fitted into the second edging.

[0011] Preferably, a first groove is formed at the edge of the first side plate, the first groove is located inside the first edging, and the position of the second plate near the first flange is in contact with the outer side of the groove wall of the first groove.

[0012] A second groove is also formed at the edge of the second side plate. The second groove is located inside the second edging. The position of the second edging plate near the second flange is in contact with the outer side of the groove wall of the second groove.

[0013] Preferably, the fan further includes a connecting flange, which is installed on the second enclosure and surrounds the outer periphery of the second notch. The side of the connecting flange away from the second enclosure can communicate with the outside through the exhaust seat. The first notch is flush with or extends out of the second notch.

[0014] The connecting flange extends toward the side closer to the first enclosure to form a first extension plate. The first extension plate is inserted between the first enclosure and the second enclosure and abuts against the first edge of the first enclosure for forming the first notch and the second edge of the second enclosure for forming the second notch.

[0015] Preferably, the first side plate and the second side plate are respectively provided with a first clearance groove and a second clearance groove, and the first extension plate is inserted into the first clearance groove and the second clearance groove.

[0016] Preferably, the connecting flange extends toward the side closer to the first side plate to form a second extension plate and a third extension plate, the second extension plate being fixedly connected to the side of the first side plate opposite to the second side plate, and the third extension plate being fixedly connected to the side of the second side plate opposite to the first side plate.

[0017] Preferably, the first enclosure is broken at both ends to form the first gap, and the second enclosure is broken at both ends to form the second gap.

[0018] In another aspect, this utility model also provides a bellows, including a box body and a fan as described above, wherein the fan is installed inside the box body and an air inlet is provided on the box body.

[0019] In another aspect, this utility model also provides an integrated stove, including a stove and a blower box as described above, wherein the blower box is configured to extract the oil fumes generated during the operation of the stove and exhaust the oil fumes to the outside.

[0020] The beneficial effects of this utility model are as follows: In this utility model, the first positioning plate is sunk into the first positioning groove, and the second positioning plate is sunk into the second positioning groove. The depth of the first positioning groove is equal to the thickness of the first positioning plate, and the depth of the second positioning groove is equal to the thickness of the second positioning plate. Therefore, when the first enclosure is assembled between the first side plate and the second side plate, there will be no step difference in the air duct formed on the side of the first enclosure away from the second enclosure plate. That is, the cavity wall of the air duct is flush and without step difference, thereby avoiding affecting the flow of oil fumes in the air duct. In other words, this utility model can reduce the impact between oil fumes and the first enclosure, the first side plate, and the second side plate, thereby reducing the noise generated during the operation of the fan and thus avoiding affecting the user's experience. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the fan structure in an embodiment of this utility model;

[0022] Figure 2 This is an exploded view of the fan in an embodiment of this utility model;

[0023] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0024] Figure 4 yes Figure 2 A magnified view of a section at point B in the middle;

[0025] Figure 5 yes Figure 2 A magnified view of a section at point C;

[0026] Figure 6 yes Figure 2 A magnified view of a section at point D;

[0027] Figure 7 yes Figure 2 A magnified view of a section at point E in the middle;

[0028] Figure 8 This is a schematic diagram of the structure of the first enclosure plate in an embodiment of this utility model;

[0029] Figure 9 This is a schematic diagram of the structure of the second enclosure plate in an embodiment of this utility model;

[0030] Figure 10 This is a schematic diagram of the stamping die, the first side plate, and the second enclosure plate in an embodiment of this utility model;

[0031] Figure 11 This is a schematic diagram of the first side plate and the second enclosure plate after being placed into the stamping die in an embodiment of this utility model;

[0032] Figure 12 This is a schematic diagram of the first side plate, the first enclosure plate, the second enclosure plate, and the second side plate after being placed into the stamping die in this embodiment of the present invention;

[0033] Figure 13 This is a schematic diagram of the structure of the first side plate with a 90° folded vertical edge stamped at the edge in an embodiment of this utility model;

[0034] Figure 14 yes Figure 13 A magnified view of a section at point F in the middle;

[0035] Figure 15 This is a schematic diagram of the structure of the first side plate with a 70°-75° folded bevel formed at the edge in an embodiment of this utility model;

[0036] Figure 16 yes Figure 15 A magnified view of a section at point G in the middle;

[0037] Figure 17 This is a schematic diagram of the structure of the first side plate and the second enclosure plate in an embodiment of the present invention, in which the first flange is embedded in the first groove;

[0038] Figure 18 yes Figure 17 A magnified view of a section at point H in the middle;

[0039] Figure 19 This is a schematic diagram of the structure of the first side plate and the second enclosure plate after being stamped in the stamping die in an embodiment of this utility model;

[0040] Figure 20 yes Figure 18 A magnified view of a section at point I;

[0041] Figure 21This is a schematic diagram of the structure of the first side plate, the first surrounding plate, the second surrounding plate, and the second side plate in an embodiment of the present invention, in which the second flange is embedded in the second groove;

[0042] Figure 22 yes Figure 21 A magnified view of a section at point J;

[0043] Figure 23 This is a schematic diagram of the structure of the first side plate, the first enclosure plate, the second enclosure plate, and the second side plate after being stamped in the stamping die in an embodiment of this utility model.

[0044] Figure 24 yes Figure 23 A magnified view of the area at point K.

[0045] In the picture:

[0046] 110. First side plate; 111. First air inlet; 112. Vibration damping bracket; 1121. Vibration damping pad; 113. First edging; 114. First groove; 1141. First anti-reverse surface; 115. First clearance groove; 116. First trench;

[0047] 120. Second side plate; 121. Second air inlet; 122. Second positioning groove; 123. Second edging; 124. Second groove; 1241. Second anti-reverse surface; 125. Second clearance groove; 126. Second groove;

[0048] 130. First enclosure plate; 131. First notch; 132. Microhole; 1331. First edge; 1332. Second edge; 134. First positioning plate; 135. Second positioning plate;

[0049] 140. Second panel; 141. Second notch; 1421. Third edge; 1422. Fourth edge; 143. First flange; 144. Second flange;

[0050] 150. Connecting flange; 1511. First plate section; 152. Third extension plate;

[0051] 310. Upper module; 311. Second locking block; 320. Lower module; 321. First positioning block; 3211. First locking groove; 3212. First cylinder; 3213. First receiving groove; 322. Second positioning block; 3221. Second locking groove; 3222. Second cylinder; 3223. Second receiving groove; 323. Inner wall positioning block. Detailed Implementation

[0052] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0053] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0056] This embodiment provides an integrated stove, which includes a cooktop and a blower box. The blower box is configured to extract the fumes generated during the operation of the cooktop and exhaust them outdoors. The blower box includes a housing and a fan. The fan is installed inside the housing, and the housing has an air inlet. The air inlet of the housing is connected to the space above the cooktop's work surface via an exhaust duct.

[0057] Please see Figures 1 to 24The 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 opposite to each other. The first side plate 110 and the second side plate 120 are respectively provided with a first air inlet 111 and a second air inlet 121. The first air inlet 111 and the second air inlet 121 are arranged opposite to each other.

[0058] In addition to the first side plate 110 and the second side plate 120, the fan also includes a first enclosure plate 130 and a second enclosure plate 140. The first enclosure plate 130 and the second enclosure plate 140 are both installed between the first side plate 110 and the second side plate 120. The first enclosure plate 130 surrounds the outer periphery of the first air inlet 111 and the second air inlet 121, and a first notch 131 is formed on the first enclosure plate 130. The second enclosure plate 140 surrounds the outer periphery of the first enclosure plate 130, and a second notch 141 is formed on the second enclosure plate 140. The first notch 131 and the second notch 141 are directly opposite each other, thereby exposing the first notch 131. An impeller (not shown in the figure) is installed on the side of the first enclosure plate 130 away from the second enclosure plate 140. The impeller is coaxially arranged with the first air inlet 111 and the second air inlet 121. The first notch 131 can communicate with the outside through the exhaust seat (not shown in the figure). In this embodiment, the side of the first enclosure 130 away from the second enclosure 140 forms an air duct. When the impeller is working, the oil fumes are first drawn into the box through the exhaust pipe, and then drawn into the air duct of the fan through the first air inlet 111 and the second air inlet 121. After that, they are sent into the exhaust seat through the first notch 131 and discharged to the outside through the exhaust seat.

[0059] Based on the above, in this embodiment, a second enclosure 140 is provided on the outside of the first enclosure 130 in a covering manner, which can effectively isolate, absorb and attenuate the transmission of sound waves, so as to reduce the noise propagating to the external environment and thus avoid affecting the user's experience.

[0060] It should be noted that since the specific structure and working principle of the impeller are existing technologies, they will not be described in detail in this embodiment.

[0061] In addition, it is worth noting that in this embodiment, the first enclosure 130 is volute-shaped and surrounds the outer periphery of the first air inlet 111 and the second air inlet 121. That is, in this embodiment, the first enclosure 130 is a volute structure. The volute structure can effectively reduce the noise generated by the impact of oil fumes, thereby further reducing the noise transmitted to the external environment and further avoiding affecting the user's experience.

[0062] In addition, in this embodiment, a first positioning plate 134 is provided on the edge of the first enclosure 130 near 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 surrounds 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 first enclosure 130 near the second side plate 120, and a second positioning groove 122 is provided on the second side plate 120. The second positioning groove 122 surrounds the outer periphery of the second air inlet 121, and the second positioning plate 135 is accommodated in the second positioning groove 122. The positioning groove and the second positioning groove 122 can jointly position the first enclosure 130, thereby ensuring that the first enclosure 130 can be accurately assembled into the preset position when assembling the fan. Specifically, the first enclosure 130 is first spliced ​​to the first side plate 110 by the first positioning plate 134. Specifically, the first positioning plate 134 is placed in the first positioning groove. Then, the second side plate 120 is spliced ​​to the other side of the first enclosure 130. Specifically, the second positioning plate 135 is placed in the second positioning groove 122. Thus, the first enclosure 130 is assembled between the first side plate 110 and the second side plate 120.

[0063] Of course, in other alternative embodiments, the second side plate 120 can be assembled first, and then the first side plate 110 can be assembled. This embodiment does not impose any specific restrictions on this.

[0064] Based on the above, the first positioning plate 134 is submerged in the first positioning groove, and the second positioning plate 135 is submerged in 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 first enclosure plate 130 is assembled between the first side plate 110 and the second side plate 120, there will be no step difference in the air duct formed on the side of the first enclosure plate 130 away from the second enclosure plate 140. That is, the cavity wall of the air duct is flush and without step difference, thereby avoiding affecting the flow of oil fumes in the air duct. In other words, this embodiment can reduce the impact between oil fumes and the first enclosure plate 130, the first side plate 110 and the second side plate 120, thereby further reducing the noise generated during the operation of the fan, and further avoiding affecting the user's experience.

[0065] 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 first enclosure plate 130 and the first side plate 110 and the second side plate 120, which can prevent the high-frequency howling noise caused by oil fumes passing through the gaps, thereby further reducing the noise generated during the operation of the fan.

[0066] Furthermore, it is worth noting that, in order to ensure that the side plates can be more securely 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, it is welded onto the first side plate 110 by a medium-frequency bump spot welding process. After the second positioning plate 135 is spliced ​​onto the second side plate 120, it is welded onto the second side plate 120 by a medium-frequency bump spot welding process. Since a medium-frequency bump spot welding process is used in this embodiment, the weld between the first positioning plate 134 and the first side plate 110 will not be exposed in the first positioning groove, and the weld between the second positioning plate 135 and the second side plate 120 will not be exposed in the second positioning groove 122, thereby avoiding the formation of a step difference in the air duct.

[0067] It is 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. In this embodiment, there are no specific restrictions on the fixing method of the first positioning plate 134 and the second positioning plate 135.

[0068] Based on the above description, the first enclosure 130 has a volute structure. Accordingly, in this embodiment, the first positioning plate 134 and the second positioning plate 135 are also volute-shaped, and correspondingly, the first positioning groove and the second positioning groove 122 are also volute-shaped.

[0069] Furthermore, in this embodiment, a first edging 113 and a second edging 123 are formed at the edges of the first side plate 110 and the second side plate 120, respectively. A first flange 143 is formed at the edge of the second enclosure plate 140 near the first side plate 110. The first flange 143 is fitted into the first edging 113. That is, the second enclosure plate 140 and the first side plate 110 are connected by a tenon joint, thereby ensuring that there is no gap at the joint between the second enclosure plate 140 and the first side plate 110. A second flange 144 is formed at the edge of the second enclosure plate 140 near the second side plate 120. The second flange 144 is fitted into the second edging 123. That is, the second enclosure plate 140 and the second side plate 120 are also connected by a tenon joint, thereby ensuring that there is no gap at the joint between the second enclosure plate 140 and the second side plate 120. Based on the above, this embodiment can further effectively isolate, absorb and attenuate sound wave transmission, thereby further reducing noise propagating to the external environment and further avoiding affecting the user's experience.

[0070] In addition, a first groove 114 is formed at the edge of the first side plate 110. The first groove 114 is located inside the first edging 113. The position of the second enclosure plate 140 near the first flange 143 is in contact with the outer side of the groove wall of the first groove 114, thereby further ensuring that there is no gap at the joint between the second enclosure plate 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 edging 123. The position of the second enclosure plate 140 near the second flange 144 is in contact with the outer side of the groove wall of the second groove 124, thereby further ensuring that there is no gap at the joint between the second enclosure plate 140 and the second side plate 120. This further effectively isolates, absorbs and attenuates sound wave transmission, thereby further reducing noise propagating into the external environment.

[0071] In addition to the first side plate 110, the second side plate 120, the first enclosure plate 130, and the second enclosure plate 140, the fan also includes a connecting flange 150. The connecting flange 150 is installed on the second enclosure plate 140 and surrounds the outer periphery of the second notch 141. The side of the connecting flange 150 facing the second enclosure plate 140 is connected to the first notch 131, and the side of the connecting flange 150 away from the second enclosure plate 140 can be connected to the outside through the exhaust seat. That is, in this embodiment, the air duct formed on the side of the first enclosure plate 130 away from the second enclosure plate 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, this embodiment can effectively isolate, absorb, and attenuate the sound waves transmitted through the contact point between the connecting flange 150 and the second enclosure plate 140, thereby further reducing the noise propagating to the external environment.

[0072] Based on the above, in this embodiment, the first enclosure 130 is disconnected at both ends to form a first notch 131, and the second enclosure 140 is disconnected at both ends to form a second notch 141. The first notch 131 is flush with or extends out of the second notch 141. In other words, the first edge on the first enclosure 130 used to form the first notch 131 is flush with the second edge on the second enclosure 140 used to form the second notch 141, or the first edge on the first enclosure 130 used to form the first notch 131 extends out of the second enclosure 140 through the second notch 141, so that the first notch 131 is directly connected to the side of the connecting flange 150 facing the second enclosure 140.

[0073] Based on the above, in this embodiment, the first notch 131 is directly connected to the connecting flange 150, that is, the air duct formed on the side of the first enclosure 130 away from the second enclosure 140 is directly connected to the connecting flange 150, thereby forming a channel for the flow of oil fumes. Preferably, the connecting flange 150 extends towards the side closer to the first enclosure 130 to form a first extension plate, the first extension plate is inserted between the first enclosure 130 and the second enclosure 140, and abuts against the first edge of the first enclosure 130 used to form the first notch 131 and the second edge of the second enclosure 140 used to form the second notch 141. On the one hand, in this embodiment, the channel for the flow of oil fumes mentioned above is closed by the first extension plate, thereby preventing oil fumes from leaking between the first enclosure 130 and the second enclosure 140, and further reducing 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 gap 131 and located between the two ends of the first enclosure 130. Therefore, in this embodiment, it is possible to further ensure that the air duct formed on the side of the first enclosure 130 away from the second enclosure 140 is unobstructed, thereby further avoiding affecting the flow of oil fumes in the air duct, and further reducing the noise generated during the operation of the fan.

[0074] Specifically, since the first notch 131 is formed by breaking the first enclosure plate 130 from end to end, and the second notch 141 is formed by breaking the second enclosure plate 140 from end to end, 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.

[0075] Furthermore, the connecting flange 150 extends towards the side near the first side 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 opposite to the second side plate 120, thereby sealing 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 opposite to the first side plate 110, thereby sealing the gap between the connecting flange 150 and the position on the second side plate 120 opposite to the first notch 131. The enclosure achieves two main benefits: firstly, it completely seals off the channel for the flow of oil fumes, thereby further reducing noise transmitted to the external environment; secondly, 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, this embodiment can further ensure that the air duct formed on the side of the first enclosure plate 130 away from the second enclosure plate 140 is unobstructed, thereby further avoiding affecting the flow of oil fumes in the air duct, and further reducing the noise generated during the operation of the fan.

[0076] It should be noted that the first side plate 110 and the second side plate 120 are respectively provided with a first clearance groove 115 and a second clearance groove 125. The first extension plate is inserted into the first clearance groove 115 and the second clearance groove 125. Based on the above description, it can be understood that in this embodiment, the first side plate 110 is provided with two first clearance grooves 115, and the second side plate 120 is provided with two second clearance grooves 125. The two first clearance grooves 115 and the two second clearance grooves 125 correspond one-to-one. The first plate portion 1511 is inserted into one of the first clearance grooves 115 and the second clearance groove 125. The second plate portion is inserted into one of the second clearance grooves 125 and the other first clearance groove 115 and the other second clearance groove 125. The first clearance groove 115 and the second clearance groove 125 can position the connecting flange 150, so that the connecting flange 150 can be directly inserted into the first side plate 110 and the second side plate 120 during assembly. The connecting flange 150 inserted into the first side plate 110 and the second side plate 120 is spliced ​​together with the first enclosure plate 130 and the second enclosure plate 140. Based on the above, the assembly process of the connecting flange 150 is simple in this embodiment.

[0077] It is worth noting that in this embodiment, the connecting flange 150 is fixed to the second enclosure plate 140 by riveting, and the rivet is recessed into the connecting flange 150, thereby preventing the rivet from protruding from the end face of the connecting flange 150 away from the second enclosure plate 140, thus avoiding affecting the connection between the connecting flange 150 and the exhaust seat. 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 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.

[0078] Furthermore, a plurality of micropores 132 are distributed on the first enclosure 130 near the first notch 131. That is, in this embodiment, in a region of the first enclosure 130 near the first notch 131, the wall is designed as a microporous noise reduction structure, thereby further reducing noise propagating to the external environment and further avoiding affecting the user experience. Based on the above, in this embodiment, a plurality of micropores 132 are distributed on both the beginning and end sides of the first enclosure 130. That is, a microporous noise reduction structure is provided on both the beginning and end sides of the first enclosure 130.

[0079] In addition, vibration damping brackets 112 are installed on the side of the first side plate 110 away from the second side plate 120 and on the side of the second side plate 120 away from the first side plate 110. Vibration damping pads 1121 are installed on the vibration damping brackets 112. The vibration damping pads 1121 are made of rubber material and abut against the housing, thereby effectively buffering the vibration generated during the operation of the fan, reducing the occurrence of mechanical resonance, and further reducing noise.

[0080] Furthermore, two or more vibration damping brackets 112 are installed on the side of the first side plate 110 away from the second side plate 120 and on the side of the second side plate 120 away from the first side plate 110. Vibration damping pads 1121 are installed on all vibration damping 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 noise.

[0081] Based on the foregoing content, the assembly process of the fan in this embodiment is described as follows:

[0082] First, the first flange 143 is fitted into the first edging 113. Then, the first enclosure 130 is spliced ​​onto the first side plate 110 via the first positioning plate 134, and the first positioning plate 134 is welded onto the first side plate 110. Then, the second flange 144 is fitted into the second edging 123, and the second side plate 120 is spliced ​​onto the side of the first enclosure 130 away from the first side plate 110. Then, the second positioning plate 135 is welded onto the second side plate 120, thus completing the assembly of the first side plate 110, the first enclosure 130, the second enclosure 140, and the second side plate 120.

[0083] In this embodiment, the fitting of the first flange 143 with the first edge banding 113 and the fitting of the second flange 144 with the second edge banding 123 are completed by a stamping die. Specifically, as shown... Figures 10 to 12 As shown, the stamping die includes an upper module 310 and a lower module 320. The upper module 310 is provided with a first locking block (not shown) and a second locking block 311. The lower module 320 includes a first positioning block 321, a second positioning block 322, and an inner wall positioning block 323. The first positioning block 321 and the second positioning block 322 are respectively provided with a first locking groove 3211 and a second locking groove 3221. The first positioning block 321 and the second positioning block 322 can move relative to or away from each other. Specifically, the side of the first positioning block 321 away from the second positioning block 322 is provided with... There is a first cylinder 3212, and a second cylinder 3222 is provided on the 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. The first positioning block 321 is provided with a first receiving groove 3213, and the second positioning block 322 is provided with a second receiving groove 3223. When the first positioning block 321 and the second positioning block 322 move relative to each other to abut each other, the first receiving groove 3213 and the second receiving groove 3223 are joined together to form a cavity.

[0084] Please see Figures 13 to 24 and combined Figures 10 to 12For the first side plate 110, a vertical edge with a 90° fold and a first groove 114 are first stamped at the edge of the first side plate 110. A first anti-retraction 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 to adjust the vertical edge to a 70°-75° angle with the surface of the first side plate 110. Then, the first flange 143 on the second enclosure plate 140 is embedded in the first groove 116 between the slanted edge and the first anti-retraction surface 1141. The position of the second enclosure plate 140 near the first flange 143 is in contact with the first anti-retraction surface 1141. Next, the first side plate 110 and the second surrounding plate 140 are placed into the stamping die for stamping. Specifically, the first side plate 110 is fitted onto the outer periphery of the inner wall positioning block 323 through the first air inlet 111, that is, the inner wall positioning block 323 can position the first side plate 110 and the second surrounding plate 140. Then, the first positioning block 321 and the second positioning block 322 move relative to each other, thereby splicing together to form a cavity. The cavity wall fits against the outer wall of the second surrounding plate 140. At the same time, the first positioning block 321 and the second positioning block 322 move relative to each other to form a cavity. Positioning blocks 322 are together attached to the lower part of 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, thereby closing 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 angle between the inclined edge and the surface of the first side plate 110 gradually decreases until it is formed into the first edge 113 and covers 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 in opposite directions, thereby removing the first side plate 110 and the second enclosure plate 140.

[0085] After the first flange 143 is fitted into the first edging 113, the first positioning plate 134 is placed into the first positioning groove, thereby splicing the first enclosure 130 onto the first side plate 110. Then, the first positioning plate 134 is welded onto the first side plate 110 by a medium frequency bump spot welding process.

[0086] 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 first enclosure plate 130 away from the first side plate 110.

[0087] Subsequently, similarly, for the second side plate 120, a vertical edge with a 90° fold and a second groove 124 are first stamped at the edge of the second side plate 120. A second anti-retraction surface 1241 is formed on the outer side of the groove wall of the second groove 124. Then, the 90° vertical edge formed at the edge of the second side plate 120 is stamped again to adjust the vertical edge to a slant with an angle of 70°-75° with the surface of the second side plate 120. Then, the second flange 144 on the second enclosure plate 140 is embedded in the second groove 126 between the slant and the second anti-retraction surface 1241. The position of the second enclosure plate 140 near the second flange 144 is in contact with the second anti-retraction surface 1241. Next, the first side plate 110, the first surrounding plate 130, the second surrounding plate 140, and the second side plate 120 are placed into a stamping die for stamping. Specifically, the first side plate 110 is fitted onto the outer periphery of the inner wall positioning block 323 through the first air inlet 111, and the second side plate 120 is fitted onto the outer periphery of the inner wall positioning block 323 through the second air inlet 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 first surrounding plate 130, the second surrounding plate 140, and the second side plate 120. Afterward, the first positioning block 321 and the second positioning block 322 are positioned relative to each other. The upper module 310 moves to form a cavity, with the cavity wall fitting against the outer wall of the second enclosure 140. Simultaneously, the first positioning block 321 and the second positioning block 322 fit together below the inclined edge of the second side plate 120. 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, thus closing the mold with the lower module 320. The upper module 310 can press against the upper part of the second side plate 120. As the upper module 310 gradually descends, the angle between the inclined edge and the surface of the second side plate 120 gradually decreases until it forms the second edge 123, covering the second flange 144. Afterward, the upper module 310 moves away from the lower module 320, and the first positioning block 321 and the second positioning block 322 move in opposite directions, thereby removing the first side plate 110, the first enclosure 130, the second enclosure 140, and the second side plate 120.

[0088] After assembling the first side plate 110, the first enclosure plate 130, the second enclosure plate 140, and the second side plate 120, the connecting flange 150 is inserted into the first side plate 110 and the second side plate 120, and the connecting flange 150 is fixed to the second enclosure plate 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.

[0089] Finally, the vibration damping bracket 112 is installed by riveting.

[0090] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A fan, comprising a first side plate (110), a second side plate (120), and a first enclosure plate (130), wherein the first side plate (110) and the second side plate (120) are disposed opposite to each other, and the first side plate (110) and the second side plate (120) are respectively provided with a first air inlet (111) and a second air inlet (121), the first enclosure plate (130) is installed between the first side plate (110) and the second side plate (120), and the first enclosure plate (130) surrounds the outer periphery of the first air inlet (111) and the second air inlet (121), a first notch (131) is formed on the first enclosure plate (130), the first notch (131) communicates with the outside through an exhaust seat, and an impeller is installed on the side of the first enclosure plate (130) near the first air inlet (111) and the second air inlet (121), characterized in that, The first enclosure (130) has a first positioning plate (134) on the edge of the side of the first side plate (110) and a first positioning groove on the first side plate (110). The first positioning groove surrounds the outer periphery of the first air inlet (111) and the first positioning plate (134) is housed in the first positioning groove. The depth of the first positioning groove is equal to the thickness of the first positioning plate (134). A second positioning plate (135) is provided on the edge of the first enclosure (130) near the second side plate (120). A second positioning groove (122) is provided on the second side plate (120). The second positioning groove (122) surrounds the outer periphery of the second air inlet (121). The second positioning plate (135) is housed in the second positioning groove (122). The depth of the second positioning groove (122) is equal to the thickness of the second positioning plate (135).

2. The fan according to claim 1, characterized in that, The fan also includes a second enclosure (140), which is installed between the first side plate (110) and the second side plate (120). The second enclosure (140) surrounds the outer periphery of the first enclosure (130), and a second notch (141) is formed on the second enclosure (140), which is directly opposite to the first notch (131).

3. The fan according to claim 2, characterized in that, The first side panel (110) and the second side panel (120) are respectively provided with a first edging (113) and a second edging (123). The second side panel (140) is provided with a first flange (143) at the edge of the side closest to the first side panel (110), and the first flange (143) is fitted into the first edging (113). The second side panel (140) is provided with a second flange (144) at the edge of the side closest to the second side panel (120), and the second flange (144) is fitted into the second edging (123).

4. The fan according to claim 3, characterized in that, A first groove (114) is also formed at the edge of the first side plate (110). The first groove (114) is located inside the first edging (113). The position of the second side plate (140) near the first flange (143) is in contact with the outer side of the groove wall of the first groove (114). A second groove (124) is also formed at the edge of the second side plate (120). The second groove (124) is located inside the second edging (123). The position of the second side plate (140) near the second flange (144) is in contact with the outer side of the groove wall of the second groove (124).

5. The fan according to claim 2, characterized in that, The fan also includes a connecting flange (150), which is installed on the second enclosure (140) and surrounds the outer periphery of the second notch (141). The side of the connecting flange (150) away from the second enclosure (140) can communicate with the outside through the exhaust seat. The first notch (131) is flush with or extends out of the second notch (141). The connecting flange (150) extends toward the side closer to the first enclosure (130) to form a first extension plate. The first extension plate is inserted between the first enclosure (130) and the second enclosure (140) and abuts against the first edge of the first enclosure (130) for forming the first notch (131) and the second edge of the second enclosure (140) for forming the second notch (141).

6. The fan according to claim 5, characterized in that, The first side plate (110) and the second side plate (120) are respectively provided with a first clearance groove (115) and a second clearance groove (125), and the first extension plate is inserted into the first clearance groove (115) and the second clearance groove (125).

7. The fan according to claim 5, characterized in that, The connecting flange (150) extends toward the side closer to the first side plate (130) to form a second extension plate 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), 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).

8. The fan according to claim 2, characterized in that, The first enclosure (130) is broken at both ends to form the first gap (131), and the second enclosure (140) is broken at both ends to form the second gap (141).

9. A bellows, characterized in that, It includes a housing and a fan as described in any one of claims 1-8, wherein the fan is installed inside the housing and the housing is provided with an air inlet.

10. An integrated stove, characterized in that, The invention includes a cooktop and a bellows as described in claim 9, wherein the bellows is configured to extract the fumes generated during the operation of the cooktop and exhaust the fumes outdoors.

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