Smoke gathering device and kitchen appliance

Abstract

The invention discloses a smoke gathering device and a kitchen appliance, and belongs to the technical field of household appliances, the smoke gathering device comprises a smoke collecting hood, a hinge assembly, an overturning plate and a wiring structure, the smoke collecting hood is provided with an air inlet, the hinge assembly comprises a hinge seat and a swing arm, the hinge seat is fixedly arranged on the smoke collecting hood, and one end of the swing arm is rotatably connected with the hinge seat; the turnover plate is fixedly connected with the other end of the swing arm; the wiring structure is detachably connected with the swing arm, the wiring structure is provided with a first restraining position used for fixing the wiring harness, and a second restraining position used for fixing the wiring harness is determined on the exhaust fume collecting hood according to the movement track of the first restraining position so that the movement angle of the wiring harness can be within the set range. The kitchen appliance comprises a machine shell and the smoke gathering device, and the smoke collecting hood is connected with the machine shell. The swing range of the wire harness is small, the wire harness is prevented from twisting, abrasion or breakage of the wire harness is avoided, and the service life and reliability of the wire harness are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a smoke collecting device and a kitchen appliance. Background Art

[0002] Commonly used kitchen appliances such as range hoods and integrated stoves have a smoke exhaust function. The smoke exhaust principle is to use the principle of aerodynamics and use a motor to drive the impeller to rotate, exhaust the air inside the volute, form a negative pressure, and use atmospheric pressure to suck the air in the kitchen space carrying the smoke from the air inlet, and then discharge the smoke to the outside through the air duct and exhaust pipe.

[0003] Existing range hoods achieve the smoke collection function by arranging a flip plate on the body. When the range hood is not working, the flip plate blocks the air inlet of the body so that the range hood maintains a complete appearance. When the range hood is working, the flip plate flips under the drive of the flip drive mechanism to open the air inlet, so that the oil smoke can enter the smoke collecting chamber in the body through the air inlet.

[0004] In order to facilitate user operation, the operation panel of the range hood is generally installed on the flip plate, and the wiring harness connecting the operation panel needs to be connected to the main control board of the machine body. The flip plate is a movable part, and the wiring harness will swing with it when the flip plate is opened and closed, which is easy to cause the wiring harness to be worn or broken. Summary of the invention

[0005] The object of the present invention is to provide a smoke collecting device and a kitchen appliance to solve the technical problem in the prior art that the wiring harness is easily worn or broken as the flip plate swings.

[0006] As conceived above, the technical solution adopted by the present invention is:

[0007] A smoke collecting device, comprising:

[0008] A smoke collecting hood, wherein the smoke collecting hood has an air inlet;

[0009] A hinge assembly, comprising a hinge seat and a swing arm, wherein the hinge seat is fixedly arranged on the smoke collecting hood, and one end of the swing arm is rotatably connected to the hinge seat;

[0010] A flip plate, fixedly connected to the other end of the swing arm;

[0011] A wiring structure is detachably connected to the swing arm, and the wiring structure has a first constraint position for fixing the wiring harness. A second constraint position for fixing the wiring harness is determined on the smoke hood according to a movement trajectory of the first constraint position so that the activity angle of the wiring harness is within a set range.

[0012] Preferably, the swing arm rotates around the rotation axis between a closed position and an open position, the motion trajectory of the first constraint position forms a first arc on a first plane, the rotation axis is perpendicular to the first plane and intersects with the first plane at a rotation point, and the projection of the second constraint position on the first plane is located in a fan-shaped area enclosed by the first arc and the rotation point.

[0013] Preferably, when the swing arm is located at the closed position, the first constraint position is located at a first point position, and when the swing arm is located at the open position, the first constraint position is located at a second point position, a first straight line is formed between the first point position and the second point position, the midpoint of the first straight line is taken as the reference point, and the projection of the second constraint position on the first plane is located within a circular area with the reference point as the center and the set radius r as the radius.

[0014] Preferably, the projection of the second constraint position on the first plane coincides with the reference point.

[0015] Preferably, a positioning groove is provided on the smoke collecting hood, the positioning groove has a notch facing the swing arm, and the second restraining position is located at the bottom of the positioning groove.

[0016] Preferably, the side wall of the positioning groove is inclined to form a guiding slope, and the guiding slope guides the wiring harness to extend from one side of the positioning groove to the second restraining position.

[0017] Preferably, the wiring structure forms or is connected with a wiring channel for threading a wiring harness, the wiring channel having a wire inlet and a wire outlet, the wire outlet being close to the rotation axis of the swing arm relative to the wire inlet, and the first constraint position being arranged at the wire outlet.

[0018] Preferably, at least part of the wiring channel extends along the swing arm; and / or the wiring structure is engaged with the swing arm.

[0019] Preferably, the smoke collecting device further comprises a wire protection structure, the wire protection structure forms or is connected with a wiring space for threading a wiring harness, the wiring space is communicated with the wire inlet; the wire protection structure is detachably connected to the flip plate; and / or the wire protection structure is detachably connected to the wiring structure.

[0020] A kitchen appliance comprises a casing and the smoke collecting device as described above, wherein the smoke collecting hood is connected to the casing.

[0021] Beneficial effects of the present invention:

[0022] The smoke collecting device proposed by the present invention has a hinge assembly for connecting the smoke collecting hood and the flip plate, a hinge seat is fixedly arranged on the smoke collecting hood to play a supporting role, one end of the swing arm is rotatably connected to the hinge seat, and the other end of the swing arm is fixedly connected to the flip plate, so that the flip plate can rotate relative to the smoke collecting hood; the wiring structure is detachably connected to the swing arm, and the wiring structure has a first constraint position for fixing the wire harness, and a second constraint position for fixing the wire harness is determined on the smoke collecting hood according to the motion trajectory of the first constraint position so that the active angle of the wire harness is within a set range. When the swing arm rotates, it drives the wiring structure to rotate, and the wire harness at the first constraint position rotates with the swing arm, and the wire harness at the second constraint position is fixed. Since the second constraint position is determined on the smoke collecting hood according to the motion trajectory of the first constraint position so that the active angle of the wire harness is within a set range, the swing range of the wire harness is ensured to be small, so as to prevent the wire harness from twisting, avoid the wire harness from being worn or broken, and ensure the life and reliability of the wire harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a first structural schematic diagram of the kitchen appliance provided in this embodiment;

[0024] Figure 2 is a second structural schematic diagram of the kitchen appliance provided in this embodiment;

[0025] Figure 3 is a schematic structural diagram of the hinge assembly provided in this embodiment;

[0026] Figure 4 is a first schematic diagram of a partial structure of a kitchen appliance provided in this embodiment;

[0027] Figure 5 is a first schematic diagram of the flip plate, hinge assembly, wiring harness, wiring structure and wire protection structure provided in this embodiment;

[0028] Figure 6 is a schematic diagram of the flip plate, hinge assembly, wiring harness and wiring structure provided in this embodiment;

[0029] Figure 7 is a first schematic diagram of the hinge assembly, wiring harness and routing structure provided in this embodiment;

[0030] Figure 8 is a second schematic diagram of the hinge assembly, wiring harness and wiring structure provided in this embodiment;

[0031] Fig. 9 is a first schematic diagram of the wiring structure provided in this embodiment;

[0032] Fig.10 is a second schematic diagram of the wiring structure provided in this embodiment;

[0033] Fig.11is a first schematic diagram of the wire protection structure provided in this embodiment;

[0034] Fig.12 is a second schematic diagram of the wire protection structure provided in this embodiment;

[0035] Fig.13 is a third structural schematic diagram of the kitchen appliance provided in this embodiment;

[0036] Fig.14 is a second schematic diagram of the flip plate, hinge assembly, wiring harness, wiring structure and wire protection structure provided in this embodiment;

[0037] Fig.15 is a second schematic diagram of a partial structure of the kitchen appliance provided in this embodiment;

[0038] Fig.16 is a third schematic diagram of a partial structure of the kitchen appliance provided in this embodiment;

[0039] Fig.17 is a schematic diagram of the motion trajectory of the swing arm provided in this embodiment;

[0040] Fig.18 is a schematic diagram of the motion trajectory of the first constraint position provided in this embodiment;

[0041] Fig.19 is a first schematic diagram of the positioning groove provided in this embodiment;

[0042] Fig. 20 This is a second schematic diagram of the positioning groove provided in this embodiment.

[0043] In the figure:

[0044] 100, housing;

[0045] 10. Smoke hood; 101. Second restraint position; 11. Positioning groove; 111. Guide slope; 112. Notch; 12. Mounting protrusion; 121. Mounting hole; 13. Avoidance space; 14. Flanging;

[0046] 20. Flip plate; 21. Mounting plate; 22. Bottom shell;

[0047] 30. hinge assembly; 301. rotation axis; 31. hinge seat; 311. receiving opening; 32. swing arm; 321. arc segment; 322. straight segment; 323. first slot; 33. pin shaft;

[0048] 40. wiring harness; 41. suspension section;

[0049] 50. Wiring structure; 501. First restraint position; 51. First buckle; 52. Wiring channel; 521. Wire inlet; 522. Wire outlet; 53. Mounting part; 54. Mounting slot; 55. Second slot;

[0050] 60. Cable ties;

[0051] 70. Wire protection structure; 71. Wire routing space; 711. Wire routing groove; 712. Transfer area; 72. Second buckle; 73. Fastener hole;

[0052] 201, first arc; 202, first plane; 203, rotation point; 204, first point position; 205, second point position; 206, reference point. DETAILED DESCRIPTION

[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0054] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0056] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0057] See also Figures 1 to 3The embodiment of the present invention provides a kitchen appliance, which may be a household appliance with a smoke extraction function, such as a range hood, an integrated stove, or an integrated range hood. In some embodiments, the kitchen appliance includes a housing 100 and a smoke collecting device, the smoke collecting device includes a smoke collecting hood 10 and a flip plate 20, and the smoke collecting hood 10 and the flip plate 20 are connected by a hinge assembly 30. A fan is provided in the housing 100 or in the smoke collecting hood 10, for sucking oil smoke and discharging it through a smoke guide channel in the housing 100. Exemplarily, the housing 100 is provided on the top of the smoke collecting hood 10.

[0058] The smoke collecting hood 10 has an air inlet, which is connected to the smoke collecting cavity of the smoke collecting hood 10. Exemplarily, the air inlet is arranged at the front side of the smoke collecting hood 10, and extends obliquely downward from the front to the rear.

[0059] The hinge assembly 30 includes a hinge seat 31 and a swing arm 32. The hinge seat 31 is fixedly disposed on the smoke hood 10. One end of the swing arm 32 is rotatably connected to the hinge seat 31. The flip plate 20 is fixedly connected to the other end of the swing arm 32. The hinge assembly 30 is used to connect the smoke hood 10 and the flip plate 20. The hinge seat 31 is fixedly disposed on the smoke hood 10 to play a supporting role. One end of the swing arm 32 is rotatably connected to the hinge seat 31. The other end of the swing arm 32 is fixedly connected to the flip plate 20, so that the flip plate 20 can rotate relative to the smoke hood 10.

[0060] For example, one end of the swing arm 32 is rotatably connected to the hinge seat 31 via a pin shaft 33, the pin shaft 33 extends along the rotation axis 301, and the swing arm 32 can rotate around the rotation axis 301. The hinge seat 31 and the smoke hood 10 can be connected via fasteners. The hinge seat 31 is provided with an accommodation opening 311 to accommodate the swing arm 32.

[0061] Exemplarily, the swing arm 32 includes an arc segment 321 and a straight segment 322 connected to each other, the end of the arc segment 321 away from the straight segment 322 is rotatably connected to the hinge seat 31, and the end of the straight segment 322 away from the arc segment 321 is connected to the flip plate 20.

[0062] Exemplarily, the smoke collecting device further includes a driving mechanism, which is used to drive the flip plate 20 to move. Exemplarily, the driving mechanism includes a push rod and a push rod motor, one end of the push rod is hinged to the smoke collecting hood 10, and the other end of the push rod is hinged to the flip plate 20, and the push rod motor is used to drive the push rod to extend and retract, so that the push rod can drive the flip plate 20 to rotate around the rotation axis 301.

[0063] The smoke collecting device further includes a wire harness 40, one end of which is connected to a controller inside the smoke collecting hood 10, and the other end of which is connected to a control board on the flip plate 20. The power cord is electrically connected to the controller. The flip plate 20 is provided with a control component, such as a control screen or a control button, which is electrically connected to the control board.

[0064] See also Figures 3 to 12 The smoke collecting device further includes a wiring structure 50, which is detachably connected to the swing arm 32. This facilitates installation, removal or replacement. For example, the wiring structure 50 is connected to the swing arm 32 by snapping, fastening or magnetic attraction.

[0065] In this embodiment, the wiring structure 50 is clamped with the swing arm 32. One of the wiring structure 50 and the swing arm 32 is provided with a first clamping groove 323, and the other is provided with a first buckle 51. The first buckle 51 can be clamped into the first clamping groove 323, so that the wiring structure 50 is clamped and fixed with the swing arm 32. Exemplarily, the wiring structure 50 includes a plurality of first buckles 51, and the swing arm 32 is provided with a plurality of first clamping grooves 323. When installing, the first buckle 51 is aligned with the first clamping groove 323, and the wiring structure 50 is pressed so that the first buckle 51 is clamped into the first clamping groove 323. The wiring structure 50 can be clamped with the swing arm 32 along the direction of the rotation axis 301, so that the wiring structure 50 is fixed to the swing arm 32. The snap-on connection not only reduces the use of fasteners, but also the wiring channel 52 formed by the wiring structure 50 is a clear space for wiring, and no structural features or fasteners occupy the wiring channel 52, thereby ensuring a larger wiring channel 52 and minimizing the wiring structure 50.

[0066] Along the extension direction of the swing arm 32, a plurality of first slots 323 are distributed at intervals on opposite sides of the width direction of the swing arm 32, so that the swing arm 32 is evenly stressed. Along the extension direction of the wiring structure 50, a plurality of first buckles 51 are distributed at intervals on opposite sides of the width direction of the wiring structure 50, so that the wiring structure 50 is evenly stressed.

[0067] The wiring structure 50 is formed or connected with a wiring channel 52 for passing the wiring harness 40. For example, the wiring structure 50 is provided with a wiring channel 52. For example, the wiring structure 50 is provided with a wiring portion that can be detachably provided, and the wiring portion is provided with a wiring channel 52.

[0068] The wiring channel 52 has an inlet 521 and an outlet 522, and the outlet 522 is closer to the rotation axis 301 of the swing arm 32 relative to the inlet 521. Exemplarily, the inlet 521 and the outlet 522 are distributed at opposite ends of the wiring structure 50. Exemplarily, the inlet 521 is located at one end of the wiring structure 50, and the outlet 522 is located at a side of the wiring structure 50 away from the swing arm 32 to prevent the wiring harness 40 from interfering with the hinge seat 31.

[0069] The wiring structure 50 includes a mounting portion 53 disposed at the wiring outlet 522, and a mounting groove 54 is provided on the mounting portion 53. The mounting groove 54 is connected to the wiring channel 52 and is used to install a second fixing member, and the second fixing member is used to fix the wiring harness 40. Exemplarily, the second fixing member is a cable tie 60, and the cable tie 60 can be used to fix the wiring harness 40 at the wiring outlet 522, so that the wiring harness 40 is fixed to the wiring structure 50. The cable tie 60 is easy to install, simple and reliable to fix, and low in cost. The cable tie 60 shown in the figure is not tied tightly, and is only used as a schematic. In actual use, the cable tie 60 and the wiring harness 40 are tied tightly.

[0070] At least part of the wiring channel 52 extends along the swing arm 32. While ensuring a compact structure, the space of the swing arm 32 is fully utilized so that the wiring harness 40 is firmly positioned. Exemplarily, the wiring structure 50 includes an arc portion and a straight portion connected to each other, an end of the straight portion away from the arc portion is provided with an inlet 521, and an end of the arc portion away from the straight portion is provided with an outlet 522 on one side of the arc portion. The arc portion of the wiring structure 50 is connected to the arc segment 321 of the swing arm 32, and the straight portion of the wiring structure 50 is connected to the straight segment 322 of the swing arm 32. The outer contour of the wiring structure 50 is substantially consistent with the outer contour of the swing arm 32.

[0071] In this embodiment, the wiring structure 50 includes a bottom plate and side plates disposed on opposite sides of the bottom plate, and the bottom plate and the side plates enclose a wiring channel 52 having a U-shaped cross-section. A plurality of first buckles 51 are disposed on a side of the side plate away from the bottom plate, and the first buckles 51 do not occupy the space of the wiring channel 52, so that the wiring structure 50 is minimized.

[0072] The smoke collecting device further includes a wire protection structure 70, which is formed with or connected with a wiring space 71 for passing the wire harness 40, and the wiring space 71 is communicated with the wiring channel 52. Specifically, the wiring space 71 is communicated with the wire inlet 521 of the wiring channel 52. One end of the wire harness 40 is connected to the control board on the flip plate 20, and the other end of the wire harness 40 passes through the wiring space 71 and enters the wiring channel 52 of the wiring structure 50 from the wire inlet 521. The wire protection structure 70 not only guides the wire harness 40, but also protects the wire harness 40 on the flip plate 20.

[0073] The wire protection structure 70 is detachably connected to the flip plate 20; and / or, the wire protection structure 70 is detachably connected to the wiring structure 50. It is convenient to install, disassemble or replace. Exemplarily, the wire protection structure 70 is fixed by snap connection, fastener connection or magnetic connection. In this embodiment, one end of the wire protection structure 70 is snap-connected to the wiring structure 50, and the other end of the wire protection structure 70 is detachably connected to the flip plate 20 by a fastener.

[0074] One of the wire protection structure 70 and the wiring structure 50 is provided with a second card slot 55, and the other is provided with a second buckle 72, and the second buckle 72 can be inserted into the second card slot 55, so that the wire protection structure 70 is fixedly connected with the wiring structure 50. Exemplarily, one end of the wire protection structure 70 is provided with the second buckle 72, and the wiring structure 50 includes the second card slot 55. During installation, the second buckle 72 is aligned with the second card slot 55, and the second buckle 72 is inserted into the second card slot 55 by pressing the wire protection structure 70.

[0075] The other end of the wire protection structure 70 is detachably connected to the flip plate 20 through a fastener. A fastener hole 73 is provided on the wire protection structure 70, and a mounting plate 21 is provided on the flip plate 20, and a through hole is provided on the mounting plate 21. During installation, the fastener hole 73 is aligned with the through hole, and the fastener passes through the through hole and is threadedly connected to the fastener hole 73. The combination of the snap connection and the fastener connection not only reduces the use of fasteners, but also the wiring space 71 formed by the wire protection structure 70 is a clear wiring space, and there are no structural features and fasteners occupying the wiring space 71, thereby ensuring a larger wiring space 71 and minimizing the wire protection structure 70.

[0076] In order to ensure structural strength, the area where the fastener hole 73 is opened on the wire protection structure 70 is partially thickened so that the wire protection structure 70 will not be broken due to the opening of the fastener hole 73.

[0077] In this embodiment, the fastener may be a screw, or a rivet, etc.

[0078] The wiring space 71 includes a wiring groove 711 and a transition area 712 which are connected to each other. The wiring groove 711 is connected to the wire inlet 521 of the wiring channel 52. The transition area 712 is an open area and the opening is located at the side of the wire protection structure 70. The transition area 712 is convenient for storing the wire harness connector and the wire harness 40.

[0079] The flip plate 20 is provided with a bottom shell 22, which is buckled on the inner side of the flip plate 20. The wire harness 40 extends from one side of the bottom shell 22 and is routed to the wire inlet 521 of the routing structure 50. The wire protection structure 70 is buckled on the flip plate 20, so that the wire harness 40 located outside the bottom shell 22 is shielded.

[0080] See also Figures 13 to 20The wiring structure 50 has a first constraint position 501 for fixing the wiring harness 40. The second constraint position 101 for fixing the wiring harness 40 is determined on the smoke hood 10 according to the movement trajectory of the first constraint position 501 so that the activity angle of the wiring harness 40 is within the set range. When the swing arm 32 rotates, the wiring structure 50 is driven to rotate. The wiring harness 40 at the first constraint position 501 rotates with the swing arm 32, and the wiring harness 40 at the second constraint position 101 is fixed. Since the second constraint position 101 is determined on the smoke hood 10 according to the movement trajectory of the first constraint position 501 so that the activity angle of the wiring harness 40 is within the set range, the swing range of the wiring harness 40 is ensured to be small, so as to prevent the wiring harness 40 from twisting, avoid the wiring harness 40 from being worn or broken, and ensure the life and reliability of the wiring harness 40. Among them, the specific value of the set range can be set according to actual needs, so that the swing range of the wiring harness 40 is small.

[0081] As mentioned above, the wiring channel 52 has an inlet 521 and an outlet 522, and the outlet 522 is closer to the rotation axis 301 of the swing arm 32 relative to the inlet 521. A second fixing member for fixing the wiring harness 40 is provided at the outlet 522 of the wiring structure 50. Exemplarily, the second fixing member is a cable tie 60, and the wiring harness 40 at the outlet 522 is fixed by the cable tie 60. Exemplarily, the second fixing member is a wire pressing plate, which is used to press the wiring harness 40 and is detachably connected to the wiring structure 50. Therefore, in the present embodiment, the first restraint position 501 is provided at the outlet 522.

[0082] The swing arm 32 rotates around the rotation axis 301 between the closed position and the open position, so the motion trajectory of the swing arm 32 is an arc. Since the routing structure 50 is fixedly arranged on the swing arm 32, the first constraint position 501 fixes the wiring harness 40, so the trajectory of the first constraint position 501 is also an arc. Exemplarily, the motion trajectory of the first constraint position 501 forms a first arc 201 on the first plane 202, the rotation axis 301 is perpendicular to the first plane 202 and intersects with the first plane 202 at the rotation point 203, and the first arc 201 and the rotation point 203 enclose a fan-shaped area. The projection of the second constraint position 101 on the first plane 202 is located in the fan-shaped area enclosed by the first arc 201 and the rotation point 203.

[0083] Exemplarily, at the first restraint position 501, the wire harness 40 is fixed by a cable tie 60; after the second restraint position 101 is determined on the smoke hood 10 according to the motion trajectory of the first restraint position 501, the wire harness 40 is fixed by a cable tie 60 at the second restraint position 101. Therefore, the wire harness 40 between the first restraint position 501 and the second restraint position 101 forms a suspension section 41. In some embodiments, the length of the suspension section 41 is equal to the spacing between the first restraint position 501 and the second restraint position 101. In some embodiments, the length of the suspension section 41 is greater than the spacing between the first restraint position 501 and the second restraint position 101 to prevent the wire harness 40 from being pulled. The spacing between the first restraint position 501 and the second restraint position 101 is L1, and the length of the suspension section 41 is L2, and the relaxation ratio E=L2 / L1 is defined. Optionally, E is greater than 1 and less than or equal to 2. The rotation angle of the swing arm 32 is positively correlated with E. The larger the rotation angle of the swing arm 32, the larger the value of E, so as to ensure that the wire harness 40 is not pulled and extend the service life.

[0084] The second constraint position 101 is located on one side of the first plane 202. The distance between the second constraint position 101 and the first plane 202 should not be too large or too small. If the distance between the second constraint position 101 and the first plane 202 is too large, it will occupy a larger space. If the distance between the second constraint position 101 and the first plane 202 is too small, the wiring harness 40 will be easily bent.

[0085] When the swing arm 32 is in the closed position, the first constraint position 501 is located at the first point 204, and when the swing arm 32 is in the open position, the first constraint position 501 is located at the second point 205. A first straight line is formed between the first point 204 and the second point 205, and the midpoint of the first straight line is taken as the reference point 206. The projection of the second constraint position 101 on the first plane 202 is located in a circular area with the reference point 206 as the center and the set radius r as the radius. The set radius r can be set according to actual needs. The reason for setting the circular area with the reference point 206 as the center and r as the radius is to ensure that the swing range of the harness 40 is small within the error range.

[0086] Exemplarily, the projection of the second restraint position 101 on the first plane 202 coincides with the reference point 206. When the swing arm 32 rotates around the rotation axis 301 between the closed position and the open position, the first restraint position 501 moves between the first point 204 and the second point 205. By setting the projection of the second restraint position 101 on the first plane 202 to coincide with the reference point 206, the amplitude of the up and down swing of the suspension section 41 of the wire harness 40 is basically symmetrical, further reducing the pulling on the wire harness 40, avoiding the wear or breakage of the wire harness 40, and ensuring the life and reliability of the wire harness 40.

[0087] After the second restraint position 101 is determined on the smoke collecting hood 10, the cable tie 60 can be installed on the smoke collecting hood 10 to fix the wire harness 40. The smoke collecting hood 10 includes a shell and components such as a reinforcing plate and an oil receiving plate disposed in the shell.

[0088] The second restraint position 101 determined according to the motion trajectory of the first restraint position 501 may be located on the outer shell, may be located on the reinforcement plate, may be located on the oil receiving plate or other plates, or may even be located somewhere in space.

[0089] The smoke hood 10 is provided with a first fixing member for fixing the wire harness 40. The position of the first fixing member can be selected according to actual needs. Preferably, the first fixing member is located at the second restraining position 101. The first fixing member cooperates with the wiring structure 50 to position and guide the wire harness 40, so that the range of movement of the wire harness 40 is small, and the wire harness 40 is prevented from swinging greatly with the flip plate 20.

[0090] In this embodiment, a positioning groove 11 is provided on the smoke collecting hood 10, and the positioning groove 11 has a notch 112 facing the swing arm 32, and the second restraint position 101 is located at the bottom of the positioning groove 11. By providing the positioning groove 11, the wiring harness 40 is positioned and guided, so as to guide the wiring harness 40 to smoothly extend between the first restraint position 501 and the second restraint position 101.

[0091] The first fixing member is disposed at the bottom of the positioning groove 11. Exemplarily, the first fixing member is a cable tie 60. The bottom of the positioning groove 11 is provided with a mounting protrusion 12, and the mounting protrusion 12 is provided with a mounting hole 121, and the mounting hole 121 is used to install the cable tie 60. Exemplarily, the first fixing member is a wire pressing plate, which is used to press the wire harness 40 and is detachably connected to the smoke hood 10.

[0092] The smoke hood 10 is provided with an escape space 13, and the swing arm 32 is located in the escape space 13 to prevent the swing arm 32 from interfering with the smoke hood 10. The notch 112 of the positioning groove 11 faces the escape space 13. The edge of the notch 112 of the positioning groove 11 is provided with a flange 14, which is folded toward a side away from the wire harness 40 to prevent the sharp edge from causing wear of the wire harness 40.

[0093] The side wall of the positioning groove 11 is inclined to form a guiding slope 111, and the guiding slope 111 guides the wire harness 40 to extend from one side of the positioning groove 11 to the second restraining position 101, that is, to the second fixing member, so as to fix the wire harness 40. By providing the guiding slope 111, the wire harness 40 can smoothly extend into the positioning groove 11 to prevent the wire harness 40 from bending.

[0094] The cigarette holding assembly provided in this embodiment determines the first point 204 and the second point 205 according to the motion trajectory of the first restraint position 501, which is specifically an arc-shaped trajectory, connects the first point 204 and the second point 205 to form a first straight line, takes the midpoint of the first straight line as the reference point 206, and makes a straight line perpendicular to the first plane 202 with the reference point 206 as the second straight line, and selects an appropriate position on the second straight line as the second restraint position 101. The spacing between the second restraint position 101 and the reference point 206 is set according to actual conditions.

[0095] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A smoke collecting device, characterized in that: include: A smoke collecting hood (10), wherein the smoke collecting hood (10) has an air inlet; A hinge assembly (30) comprising a hinge seat (31) and a swing arm (32), wherein the hinge seat (31) is fixedly disposed on the smoke collecting hood (10), and one end of the swing arm (32) is rotatably connected to the hinge seat (31); A flip plate (20) fixedly connected to the other end of the swing arm (32); A wiring structure (50) is detachably connected to the swing arm (32), and the wiring structure (50) has a first restraining position (501) for fixing the wiring harness (40). A second restraining position (101) for fixing the wiring harness (40) is determined on the smoke hood (10) according to a movement trajectory of the first restraining position (501) so that the movable angle of the wiring harness (40) is within a set range.

2. The smoke collecting device according to claim 1, characterized in that: The swing arm (32) rotates around the rotation axis (301) between a closed position and an open position, the movement trajectory of the first constraint position (501) forms a first arc (201) on a first plane (202), the rotation axis (301) is perpendicular to the first plane (202) and intersects with the first plane (202) at a rotation point (203), and the projection of the second constraint position (101) on the first plane (202) is located in a fan-shaped area enclosed by the first arc (201) and the rotation point (203).

3. The smoke collecting device according to claim 2, characterized in that: When the swing arm (32) is located at the closed position, the first constraint position (501) is located at a first point position (204); when the swing arm (32) is located at the open position, the first constraint position (501) is located at a second point position (205); a first straight line is formed between the first point position (204) and the second point position (205); the midpoint of the first straight line is taken as a reference point (206); the projection of the second constraint position (101) on the first plane (202) is located within a circular area with the reference point (206) as the center and a set radius r as the radius.

4. The smoke collecting device according to claim 3, characterized in that: The projection of the second constraint position (101) on the first plane (202) coincides with the reference point (206).

5. The smoke collecting device according to any one of claims 1 to 4, characterized in that: The smoke collecting hood (10) is provided with a positioning groove (11), the positioning groove (11) having a notch (112) facing the swing arm (32), and the second restraining position (101) is located at the bottom of the positioning groove (11).

6. The smoke collecting device according to claim 5, characterized in that: The side wall of the positioning groove (11) is tilted to form a guiding slope (111), and the guiding slope (111) guides the wire harness (40) to extend from one side of the positioning groove (11) to the second restraining position (101).

7. The smoke collecting device according to any one of claims 1 to 6, characterized in that: The wiring structure (50) is formed or connected with a wiring channel (52) for passing the wiring harness (40); the wiring channel (52) has a wiring inlet (521) and a wiring outlet (522); the wiring outlet (522) is close to the rotation axis (301) of the swing arm (32) relative to the wiring inlet (521); and the first restraint position (501) is arranged at the wiring outlet (522).

8. The smoke collecting device according to claim 7, characterized in that: At least a portion of the wiring channel (52) extends along the swing arm (32); and / or the wiring structure (50) is snap-connected to the swing arm (32).

9. The smoke collecting device according to claim 7, characterized in that: The smoke collecting device further comprises a wire protection structure (70), wherein the wire protection structure (70) forms or is connected with a wiring space (71) for passing the wire harness (40), and the wiring space (71) is communicated with the wire inlet (521); The wire protection structure (70) is detachably connected to the flip plate (20); and / or the wire protection structure (70) is detachably connected to the wiring structure (50).

10. A kitchen appliance, characterized in that: It comprises a casing (100) and the smoke collecting device according to any one of claims 1 to 9, wherein the smoke collecting hood (10) is connected to the casing (100).

Images