CN218772977U - Frame piece, combined frame structure of electric appliance, electric appliance and storage rack - Google Patents

Abstract

The utility model provides a frame member, electrical apparatus's unitized frame structure, electrical apparatus and supporter. The frame member includes a side wall extending along a length direction of the frame member; the side wall is provided with at least two bayonets which are sequentially arranged along the length direction; the bayonet penetrates through two sides of the thickness of the side wall, and an insertion opening of the bayonet is arranged at the edge of the side wall; the side wall is provided with a first buckle structure, and the first buckle structure is formed on the inner circumferential surface of the bayonet. The combined frame structure comprises a side frame body and an electric appliance main body, and a second buckle structure is arranged at the extending end part of the electric appliance main body; the two extending end parts of the electric appliance main body are respectively connected with the two side frame bodies; the frame body comprises a frame piece; the extension end part is inserted into the bayonet from the insertion opening, and the first buckling structure is matched with the second buckling structure. The electric appliance comprises the combined frame structure. The commodity shelf comprises the electric appliance. The bayonet is cut out of the side wall, and meanwhile, the first buckle structure is formed, the design of the frame piece is simplified, the processing is simple, the light weight of the electric appliance is facilitated, and the production cost is reduced.

Description

Frame piece, combined frame structure of electric appliance, electric appliance and storage rack

Technical Field

The utility model relates to the technical field of electrical apparatus, concretely relates to combined frame structure, electrical apparatus and supporter of frame spare, electrical apparatus.

Background

Some existing electrical appliances are assembled by adopting a combined frame structure.

Specifically, current plant light adopts frame construction to assemble, and this frame construction includes two frame strips and several lamp strip, and the frame strip extends and two frame strips set up relatively at the second direction with the interval along the first direction, and the lamp strip extends along the second direction, and the extension both ends of every lamp strip lock respectively on these two frame strips. The side frame strip is provided with a side wall facing the lamp strip, a plurality of connecting seats are mounted outside the side wall, accommodating positions are arranged on the connecting seats, first electric connecting ends facing downwards are arranged in the accommodating positions of the connecting seats, connecting wires of the first electric connecting ends penetrate out of openings of the side wall, and bayonets corresponding to the accommodating positions are further arranged on the connecting seats; and the extending end part of the lamp strip is provided with an upward second electric connecting end and a buckle. The extension tip of lamp strip can get into from bottom to top and hold in the position, when reaching the target location, first electric connection end docks with the second electric connection end when buckle and bayonet lock, realizes the electric connection when realizing physics fixed connection.

The problem that this current frame construction of plant light exists is, though its be convenient for between side frame strip and the lamp strip rapid Assembly and can be according to the quantity of actual demand selection lamp strip and the mounted position of selection lamp strip, but the structure of side frame strip itself is comparatively complicated, except the main part of shaping side frame strip, still need install a plurality of connecting seats outside the lateral wall and need carry out the threading work many times from every lateral wall trompil, not only the production degree of difficulty is great, still be unfavorable for the product lightweight.

SUMMERY OF THE UTILITY MODEL

A first object of the present invention is to provide a frame member which is easy to produce and assemble and further simplified in the combined frame structure of an electric appliance.

A second object of the present invention is to provide a combined frame structure of an electrical appliance which is easy to produce and assemble and is further simplified.

A third object of the present invention is to provide an electrical appliance which is easy to produce and assemble and further simplified in the combined frame structure of the electrical appliance.

A fourth object of the present invention is to provide a rack which is easy to produce and assemble and is further simplified in the combined frame structure of the electric appliance.

A first object of the present invention is to provide a side frame member comprising a side wall extending along a length direction of the side frame member; the side wall is provided with at least two bayonets which are sequentially arranged along the length direction; the bayonet penetrates through two sides of the thickness of the side wall, and the insertion opening of the bayonet is arranged at the edge of the side wall; be provided with first buckle structure on the lateral wall, first buckle structure is formed at the inner peripheral surface department of bayonet socket.

According to the above technical scheme, the utility model discloses directly cut out the bayonet socket that corresponds with the position that holds of background art on the lateral wall of frame spare, and cut the first buckle structure that technical ability formation has unsmooth characteristic when forming the bayonet socket to the lateral wall, and this bayonet socket directly communicates to the inner space of frame body. Compared with the prior art, the utility model discloses need not to install a plurality of connecting seats and need not to carry out a lot of threading work on the frame spare when making the frame body, when will be like the extension tip lock of the electrical apparatus main part of lamp strip to the bayonet socket, the part that has the second electricity and connect the end of extension tip is located the inner space of frame body naturally, therefore can realize the electricity with the first electricity connect the end that sets up in the frame body and be connected. Therefore, the design of the frame piece is simplified, the processing is simple, the light weight of the electric appliance is facilitated, and the production cost is reduced.

Further, the first buckle structure comprises a convex part and a concave part which are sequentially arranged along the inserting direction of the bayonet.

In a further aspect, the side wall is cut to form the bayonet while the first buckle structure is formed.

From top to bottom, through designing cutting the profile line, cutting the side wall and forming the bayonet socket the time skill form have unsmooth characteristic first buckle structure, consequently, the design of frame spare is simplified, and processing is simple.

The combined frame structure of the second purpose electric appliance of the utility model comprises a frame body and an electric appliance main body, wherein the extending end part of the electric appliance main body is provided with a second buckle structure; the at least two electric appliance main bodies are arranged between the two side frame bodies, and the two extending end parts of the electric appliance main bodies are respectively connected with the two side frame bodies; the frame body comprises a first frame piece, and the first frame piece adopts the frame piece; the extension end part is inserted into the bayonet from the insertion opening, and the first buckling structure is matched with the second buckling structure.

It is thus clear that by the above-mentioned scheme, compare the background art, the utility model discloses need not to install a plurality of connecting seats and need not to carry out a lot of threading work on the frame spare when making the frame body, when will like the extension tip lock of the electrical apparatus main part of lamp strip to the bayonet socket, the part that has the second electricity and connect of extension tip is located the inner space of frame body naturally, therefore can realize the electricity with the first electricity connection end of setting in the inner space of frame body and be connected. The design of the combined frame structure is simplified, the processing is simple, the light weight of the electric appliance is facilitated, and the production cost is reduced.

The frame body also comprises a second frame piece, and the second frame piece is connected with the first frame piece; the second frame member limits the extending end from the inserting port, and/or an inner space of the frame body is formed between the first frame member and the second frame member; the extending end part is provided with an electric connection end which is positioned in the inner space.

It is from top to bottom visible, second frame spare and first frame spare cooperation can not only constitute the frame body that has complete outline and complete inner space, and the second frame spare can also prevent that the electrical apparatus main part from breaking away from the bayonet socket, promotes the security of product. In addition, after the extending end portion of the electric appliance main body such as the light bar is fastened to the bayonet, the portion of the extending end portion having the electric connection end naturally reaches the internal space of the side frame body, and thus can be butted against the other electric connection end provided in the internal space of the side frame body.

The second buckle structure comprises an elastic arm; the elastic arm is provided with a protrusion, the first buckle structure limits the protrusion from the opposite direction of the inserting direction of the bayonet, and/or a clamping groove arranged along the inserting direction is arranged on the elastic arm, the side wall is positioned in the clamping groove, and the side wall is in limit fit with the elastic arm in the thickness direction of the side wall.

From the above, the elastic arm is firstly squeezed to enable the protrusion to cross the convex part in the process of inserting the extending end part into the bayonet; when the extension end part reaches the target position and the protrusion is aligned with the recess, the elastic arm is reset and the protrusion enters the recess, and the protrusion limits the protrusion from the direction opposite to the inserting direction of the bayonet, so that the extension end part can be kept in the bayonet under the matching of the first buckling structure and the second buckling structure. In addition, since the depth of the bayonet is determined by the thickness of the side wall, and the inner circumferential dimension of the bayonet is slightly larger than the outer circumferential dimension of the extension end portion for easy mounting, in this arrangement, if the side wall and the extension end portion are not mutually restricted in the thickness direction of the side wall, not only the extension end portion is loosened in the thickness direction of the side wall, but also the deflection and the looseness of the extension end portion are caused. The cooperation of draw-in groove on the bullet arm and lateral wall not only makes to extend between tip and the lateral wall and restrict each other on the thickness direction of lateral wall, and furtherly, can also prevent effectively that combination frame construction from producing the beat and warping, promotes combination frame construction's structural stability.

The side frame body also comprises an end cover; the end cover is arranged at the end part of the length direction of the side frame body and connected between the first side frame piece and the second side frame piece.

It is from top to bottom visible, the end cover not only can be followed the tip and sheltered from the inner space of frame body, plays certain sealed guard action to the inner structure in the inner space, and the end cover is connected between first frame spare and second frame spare in order to consolidate being connected of first frame spare and second frame spare, further guarantees joint strength, further keeps product security.

The third objective of the present invention is to provide an electrical appliance including the above-mentioned combined frame structure.

The electrical appliance is a lamp, the electrical appliance main body is a lamp body, the electrical appliance further comprises a light-emitting device arranged on the lamp body, or the electrical appliance is an airflow device, an air duct is formed in the electrical appliance main body, and an air outlet of the air duct is formed in the electrical appliance main body.

The fourth object of the present invention is to provide a shelf, comprising a shelf body and the above-mentioned electrical appliance, wherein the shelf body is provided with a bearing part; the electric appliance is connected to the lower side of the bearing part.

Drawings

Fig. 1 is an exploded view of the combined frame structure of the present invention.

Fig. 2 is a partial view of the frame strip in the exploded state of the embodiment of the combined frame structure of the present invention.

Fig. 3 is a partial view of the assembled side frame strip of the embodiment of the combined frame structure of the present invention.

Fig. 4 is a partially enlarged view of a portion a in fig. 1.

Fig. 5 is a partially enlarged view of fig. 1 at B.

Fig. 6 is a schematic view of the fastening of the side frame strip and the light bar in the embodiment of the combined frame structure of the present invention.

Fig. 7 is a structural diagram of a first combination mode of the embodiment of the combined frame structure of the present invention.

Fig. 8 is a structural diagram of a second combination of the embodiment of the combined frame structure of the present invention.

Fig. 9 is a structural diagram of a third combination mode of the combined frame structure of the present invention.

Fig. 10 is a structural view of the embodiment of the shelf of the present invention.

Fig. 11 is a partially enlarged view of fig. 10.

Fig. 12 is a partial view of the embodiment of the combined frame structure of the present invention engaged with bolts.

Fig. 13 is a partial view of the embodiment of the combined frame structure of the present invention cooperating with a lifting rope.

Fig. 14 is a partial view of the embodiment of the combined frame structure of the present invention in cooperation with a hook.

Detailed Description

Referring to fig. 1 and fig. 7 to fig. 10, the supporter of this embodiment is a plant shelf, and the electrical apparatus of this embodiment is a plant lamp installed on the plant shelf, and plant lamp constitutes based on the composite frame structure, and the composite frame structure includes two frame strips 1 and many lamp strips 5, and frame strip 1 does the utility model discloses a frame body, lamp strip 5 do the utility model discloses an electrical apparatus main part, the x-axis direction is the length direction of frame strip 1, and two frame strips 1 extend and relative arrangement in the y-axis direction along the x-axis direction, and the y-axis direction is lamp strip 5's length direction, and many lamp strips 5 extend and have the ground to set up along the x-axis direction along the y-axis direction, and two relative extension tip 51 of every lamp strip 5 in self length direction respectively with foretell two frame strips 1 fixed connection. The plant light further comprises a LED chip set (not shown) mounted on the underside of the light bar 5.

Referring to fig. 1 to 3, the frame strip 1 includes a first frame member 2, a second frame member 3, and an end cap 4. The length direction of the first frame piece 2 and the second frame piece 3 is consistent with the length direction of the frame strip 1, and the first frame piece 2 and the second frame piece 3 extend between the two extending ends of the frame strip 1. The first frame member 2 and the second frame member 3 are both aluminum alloy sections, as shown in fig. 2, the first frame member 2 includes a first front side wall 21, a top wall 22 and a rear wall 23 which are sequentially bent at a right angle, wherein the first front side wall 21 is a side wall of the frame member of the present invention; the second frame member 3 includes a second front side wall 31 and a bottom wall 32 connected by a right angle bend.

The lower end of the first front side wall 21 is provided with a first convex edge 219 protruding in the negative direction of the y-axis, and the upper end of the second front side wall 31 is provided with a first groove 319 recessed in the negative direction of the y-axis; the bottom of the rear wall 23 is provided with a second convex edge 239 extending along the y-axis in the forward direction, and the rear end of the bottom wall 32 is provided with a second groove 329 recessed along the y-axis in the forward direction. The first frame member 2 can be engaged with the second frame member 3 to form the outer contour of the frame strip 1 and the inner space 100. The buckling between the first frame member 2 and the second frame member 3 is completed by the buckling of the first convex edge 219 and the first groove 319 and the buckling of the second convex edge 239 and the second groove 329, after the buckling of the first frame member 2 and the second frame member 3 is completed, the second front sidewall 31 is connected right below the first front sidewall 21, and the first front sidewall 21 and the second front sidewall 31 form the whole front sidewall of the frame strip 1.

In addition, the end cap 4 includes a cap body 41, and a locking protrusion 42 and a locking buckle 43 protruding from the inner side of the cap body 41, the top wall 22 is provided with a locking hole 223 at a position close to the extending end, after the locking between the first frame member 2 and the second frame member 3 is completed, the end cap 4 is required to further fix the two, the locking protrusion 42 and the locking buckle 43 of the end cap 4 are both inserted into the internal space 100 from the port of the internal space 100 and are in contact fit with the inner surfaces of the first frame member 2 and the second frame member 3, and the locking buckle 43 is locked with the locking hole 223, so that the end cap 4 not only completes the blocking of the internal space 100, but also further stabilizes the connection relationship between the first frame member 2 and the second frame member 3. In addition, the inner space 100 serves as a routing space, and the bottom of the end cap 4 has a routing opening 40 communicating with the inner space 100 for facilitating the outgoing line.

Referring to fig. 4 and 6 again, the first front side wall 21 of the first side frame member 2 is provided with a plurality of bayonets 20 disposed at equal intervals, and the bayonets 20 are used for being matched with the extending end 51 of the light bar 5. Further, the bayonet 20 is a cut formed by cutting the first front sidewall 21, the bayonet 20 penetrates through the space between the two sides of the first front sidewall 21 in the thickness direction, and the bayonet 20 is communicated between the inner space 100 and the outside of the side frame strip 1. In addition, referring to fig. 4, the insertion opening 201 of the bayonet 20 is located on the lower end edge of the first front side wall 21, that is, when the extension end portion 51 needs to be inserted into the bayonet 20, it needs to pass through the insertion opening 201 from bottom to top to enter the bayonet 20, and the direction from bottom to top is also the insertion direction of the bayonet 20, that is, the z-axis positive direction shown in fig. 1.

In addition, while the first front sidewall 21 is cut to form the bayonet 20, a first buckling structure 211 is formed on the inner edge of the bayonet 20, and the first buckling structure 211 is used for buckling the extension end part 51. In a direction perpendicular to the insertion direction of the bayonet 20, the two first latching structures 211 are oppositely arranged on two opposite sides of the bayonet 20, and the first latching structures 211 are arranged at a position close to the insertion port 201, namely, at the lower parts of the inner edges of the two sides of the bayonet 20; the first snap structure 211 comprises a convex portion 212 and a concave portion 213 which are sequentially arranged along the insertion direction of the bayonet 20, in the x-axis direction, the concave portion 213 is concave along the direction away from the bayonet 20, and the convex portion 212 is convex along the direction toward the bayonet 20. The lower side of the protrusion 212 is a guiding slope facing the insertion opening 201 and inclined to the insertion direction, which is favorable for causing the elastic structure on the extension end 51 to deform.

In addition, there is an inner edge upper portion 214 at an upper portion of the inner edge of the bayonet 20, and as can be seen from fig. 6, the inner edge upper portion 214 is located closer to the center of the bayonet 20 than the convex portion 212 in the x-axis direction, and the distance between the two inner edge upper portions 214 on both sides is smaller than the distance between the two convex portions 212. The inner upper edge portion 214 is configured to engage with an engagement structure on the extension end portion 51.

With continued reference to fig. 4 and 6, the extending end 51 of the light bar 5 includes a second buckle structure 52 and a second electrical connection end 53, and the second electrical connection end 53 is an electrical connection end of the present invention. The second electrical connection end 53 is a downwardly extending tab; the two second snap structures 52 are disposed on the extending end 51 at two opposite sides in the x-axis direction, the second snap structures 52 include elastic arms 521 and protrusions 522, the elastic arms 521 extend downward from the main body of the extending end 51, the lower ends of the elastic arms 521 are elastic swing ends, and the protrusions 522 protrude from the elastic swing ends in the x-axis direction. Further, the upper side of the protrusion 522 is a guide slope.

In addition, the elastic arm 521 is provided with a locking slot 523, an inlet 524 of the locking slot 523 is located at the top of the elastic arm 521 and on the upper surface of the extending end 51, the locking slot 523 extends along the negative direction of the z-axis, and the locking slot 523 is open on the outer side surface of the elastic arm 521 along the direction of the x-axis.

Referring to fig. 4 to 6, in the process of inserting the extension end portion 51 into the bayonet 20 from bottom to top, the first front sidewall 21 enters the bayonet 523 from the inlet 524, then, the upper side surface of the protrusion 522 abuts against the lower side surface of the protrusion 212 and causes the pressing deformation of the elastic arm 521 until the protrusion 522 passes over the protrusion 212 and enters the recess 213, the extension end portion 51 reaches the target position, at which time the elastic arm 521 recovers the deformation, the protrusion 212 limits the protrusion 522 from the opposite direction of the insertion direction of the bayonet 20, and the inner edge upper portion 214 is located in the bayonet 523. The extension end 51 is effectively fixed in the bayonet 20 by the cooperation of the first and second snap structures 211 and 52. In addition, at this moment, the second electrical connection end 53 is located in the internal space 100, so that the second electrical connection end 53 is butted with the first electrical connection end arranged in the internal space 100 to realize electrical connection, and the power supply requirement of the light bar 5 is met.

Referring to fig. 3 again, after the first frame member 2 is combined with the second frame member 3, the second front sidewall 31 is located right below the first front sidewall 21, and the second front sidewall 31 blocks the extension end 51 from the opposite direction of the insertion direction at the insertion port 201, thereby further preventing the extension end 51 from being released.

Referring to fig. 7 to 9, since the plurality of bayonets 20 are disposed along the length direction of the side frame strip 1, the side frame strip 1 can be set to have different lengths, and accordingly, the number of the bayonets 20 thereon is correspondingly changed, and the bayonets 20 can be selectively used, a lamp with different powers or different illumination areas can be formed by two side frame strips 1 and the plurality of light bars 5, thereby satisfying different illumination requirements.

And the utility model discloses select directly to cut out the bayonet socket 20 that corresponds with the position that holds of background art on the lateral wall 21 of frame spare 2, compare the background art, the utility model discloses need not to install a plurality of connecting seats and need not to carry out a lot of threading work on frame spare 2 when making frame body 1, when will like bayonet socket 20 is buckled to the extension tip 51 of the electrical apparatus main part 5 of lamp strip, the part that has second electric connection end 53 of extension tip 51 is located frame body 1's inner space 100 naturally, therefore can realize the electricity with the first electric connection end that sets up in frame body 1's inner space 100 and be connected. Therefore, compared with the frame strips in the background art, the frame piece 2 is simplified in design and simple to process, and is beneficial to lightening the weight of the electric appliance and reducing the production cost.

Referring to fig. 10, the plant shelf includes the shelf body 6 and the plant lamp of this embodiment, and the shelf body 6 includes two grudging posts 61 that are located both sides, connects crossbeam 62 between two grudging posts 61 and is born the rack 63 on crossbeam 62, and the rack 63 is the utility model discloses a bearing part. Combine fig. 2 and 11, plant lamps and lanterns combined frame structure is last, all processes on the length both ends of roof 22 of frame strip 1 and form hoisting hole 221, and hoisting hole 221 does the utility model discloses an accessory connecting hole, four usable lifting hooks 71 of plant lamps and lanterns hoist and mount at the downside of rack 63, and lifting hook 71 is "S" form, and four lifting hooks 71 'S lower crotch collude on four accessory connecting holes 221 of combined frame structure four corners, and lifting hook 71' S last crotch all colludes on rack 63.

Referring to fig. 13, the plant lamp can also be lifted by matching with a lifting rope 73, and a climbing buckle at the bottom of the lifting rope 73 is buckled on the lifting through hole 221.

Referring to fig. 14, the plant lamp can also be directly matched with the climbing buckle 74 to realize hoisting, and the climbing buckle 74 is buckled on the hoisting through hole 221.

In other embodiments of the electrical apparatus, the electrical apparatus is a ceiling lamp or other electrical apparatus for ceiling, see fig. 12, the ceiling lamp is further provided with a screw through hole 222 as the ceiling top wall 22, the screw through hole 222 is also the utility model discloses an accessory connecting hole, the screw 72 can pass the screw through hole 222 from bottom to top and lock on the ceiling structure.

In other embodiments, the electrical apparatus is an electrical apparatus other than a lamp, for example, the electrical apparatus is an airflow device such as a fan, an air purifier or an air conditioner, the electrical apparatus main body includes a ventilation structure, an air blowing structure and an air outlet structure, and when the electrical apparatus is an air purifier, a sterilization module is further disposed in the electrical apparatus main body at a position close to the air outlet.

In other embodiments, the first locking structure may be disposed in other manners, for example, the first locking structure protrudes from the surface of the side wall along the thickness direction of the side wall, and correspondingly, the elastic deformation direction of the elastic arm at the extending end of the frame strip also corresponds to the thickness direction of the side wall.

In other embodiments, the spring arm may not have a detent. But the mode of not setting up the draw-in groove makes the combination frame structure produce the beat easily, is unfavorable for structural stability.

Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.

Claims (10)

1. A frame member including a sidewall extending along a length of the frame member;

the method is characterized in that:

the side wall is provided with at least two bayonets which are sequentially arranged along the length direction;

the bayonet penetrates through two sides of the thickness of the side wall, and an insertion opening of the bayonet is formed in the edge of the side wall;

the side wall is provided with a first buckling structure, and the first buckling structure is formed on the inner peripheral surface of the bayonet.

2. The rim member of claim 1, wherein:

the first buckle structure comprises a convex part and a concave part which are sequentially arranged along the inserting direction of the bayonet.

3. A side frame member according to claim 1 or 2, wherein:

the side wall is cut to form the bayonet, and meanwhile the first buckling structure is formed.

4. The combined frame structure of the electric appliance comprises a side frame body and an electric appliance main body, wherein a second buckle structure is arranged at the extending end part of the electric appliance main body;

the at least two electric appliance main bodies are arranged between the two side frame bodies, and the two extending end parts of the electric appliance main bodies are respectively connected with the two side frame bodies;

the method is characterized in that:

the frame body comprises a first frame member, wherein the first frame member adopts the frame member of any one of the claims 1 to 3;

the extension end portion is inserted into the bayonet from the insertion opening, and the first buckling structure is matched with the second buckling structure.

5. The composite frame structure of an electric appliance according to claim 4, wherein:

the frame body also comprises a second frame piece, and the second frame piece is connected with the first frame piece;

the second frame piece limits the extending end part from the insertion opening, and/or an inner space of the frame body is formed between the first frame piece and the second frame piece, an electric connection end is arranged on the extending end part, and the electric connection end is positioned in the inner space.

6. The composite frame structure of electric appliances according to claim 4 or 5, wherein:

the second buckle structure comprises an elastic arm;

the elastic arm is provided with a protrusion, the protrusion is limited by the first buckle structure from the opposite direction of the inserting direction of the bayonet, and/or a clamping groove is formed in the elastic arm and is arranged along the inserting direction of the bayonet, the side wall is located in the clamping groove, and the side wall is in limit fit with the elastic arm in the thickness direction of the side wall.

7. The composite frame structure of an electric appliance according to claim 5, wherein:

the side frame body also comprises an end cover;

the end cover is positioned at the end part of the side frame body in the length direction, and the end cover is connected between the first side frame piece and the second side frame piece.

8. An electrical appliance, characterized by: a composite frame structure comprising any one of the preceding claims 4 to 7.

9. The electric appliance according to claim 8, characterized in that:

the electric appliance is a lamp, the main body of the electric appliance is a lamp body, the electric appliance also comprises a light-emitting device arranged on the lamp body,

or the like, or, alternatively,

the electric appliance is an airflow device, an air duct is formed in the electric appliance main body, and an air outlet of the air duct is formed in the electric appliance main body.

10. The shelf comprises a shelf body, wherein the shelf body is provided with a bearing part;

the method is characterized in that:

further comprising an electrical appliance according to claim 8 or 9, which is attached to the underside of the carrier part.

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