CN221306301U

CN221306301U - Upper cover subassembly and electromagnetic heating device

Info

Publication number: CN221306301U
Application number: CN202323112188.2U
Authority: CN
Inventors: 朱泽春; 寿东升; 金立旺; 吴朝超
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Priority date: 2023-11-17
Filing date: 2023-11-17
Publication date: 2024-07-09
Anticipated expiration: 2033-11-17

Abstract

The utility model discloses an upper cover assembly, which comprises a display plate and an upper cover, wherein the upper cover is provided with a side plate which is obliquely arranged, the side plate is provided with a glue digging groove, the glue digging groove comprises a side wall and a bottom wall, the side wall comprises a first side wall which extends along the up-down direction of the upper cover, the bottom wall is provided with a connecting hole, the connecting hole extends along the direction from the back surface of the side plate to the surface of the side plate, a fastening piece penetrates through the display plate and is fixed with the connecting hole, a blocking rib which extends along the direction from the back surface of the side plate to the surface of the side plate is also arranged in the glue digging groove, the blocking rib is adjacent to the connecting hole, and one end of the fastening piece in the glue digging groove is lower than the outer end surface of the blocking rib. The upper cover assembly can prevent the experimental finger from contacting with the fastener, so as to avoid the risk of electric shock, and further enable the product to meet the safety requirements. In addition, the utility model also discloses an electromagnetic heating device adopting the upper cover assembly.

Description

Upper cover subassembly and electromagnetic heating device

[ Field of technology ]

The present disclosure relates to electromagnetic heating devices, and particularly to an upper cover assembly and an electromagnetic heating device.

[ Background Art ]

The upper cover assembly in the prior art comprises a display panel and an upper cover, as shown in fig. 1, the upper cover is provided with a side plate 01 which is obliquely arranged, in order to fix the display panel 02 on the inner side of the side plate 01 and enable the display panel 02 and the side plate 01 to be similarly inclined, and ensure that a certain gap 03 is formed between the display panel 02 and the side plate 01 to avoid electric elements on the display panel 02, a part of the existing side plate 01 is thickened to form an inwardly protruding installation boss 011, one side of the installation boss 011, which is away from the surface of the side plate, is provided with a connecting hole formed in a sliding block core pulling mode, the axis of the connecting hole is perpendicular to the surface of the side plate, a fastener 04 (screw) penetrates through the display panel 02 and is connected with the connecting hole, so that the display panel 02 is fixed on the installation boss 011 in an inclined mode, and meanwhile the installation boss 011 is away from the electric elements on the display panel 02, which are also can be avoided by the gap 04 between one side of the surface side of the side plate and the inner side surface of the side plate.

In order to avoid the appearance defect that the thickness of the installation boss 011 is too large and shrink after injection molding, the current side plate 01 is hollowed out through the mode of inclined ejection demoulding at the part corresponding to the installation boss 011 to form a glue drawing groove 012, glue drawing direction is perpendicular to the surface of the side plate, at this time, the connecting hole of the rest part can be formed on the bottom wall of the glue drawing groove 012, and in order to reduce the vertical demoulding of the upper cover, the first side wall 0121 of the glue drawing groove close to the top of the upper cover can extend along the upper and lower direction of the upper cover, so that the notch of the glue drawing groove is opened longer and is larger than the size of an experimental finger, the experimental finger can be inserted into the glue drawing groove along the length direction of the notch, and when the product is disassembled and then the safety rule test is carried out, as one end of the fastener 04 (screw) can protrude out to be exposed in the glue drawing groove 012, and the experimental finger can be inserted into the glue drawing groove 012 to be contacted with the fastener 04 (screw) when the experimental finger test is used, namely the finger can be inserted into the glue drawing groove 012 to be contacted with the fastener 04, and the electric shock rule 04 can not be generated, and the electric shock requirement can not be met.

[ utility model ]

The utility model aims to provide an upper cover assembly and an electromagnetic heating device, which can prevent an experimental finger from contacting a fastener so as to avoid the risk of electric shock, and further enable a product to meet the safety requirements.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The utility model provides an upper cover subassembly, includes display panel and upper cover, the upper cover has the curb plate that the slope set up, the curb plate is equipped with draws the gluey groove, draw the gluey groove and include lateral wall and diapire, the lateral wall includes the first lateral wall that extends along the upper cover's upper and lower direction, the diapire is equipped with the connecting hole, the connecting hole extends to the direction on curb plate surface along the curb plate back, and the fastener runs through the display panel and with the connecting hole is fixed, draw still to be equipped with in the gluey groove and follow the curb plate back and keep off the muscle to the curb plate surface direction extension, keep off the muscle adjacent the connecting hole sets up, just the fastener is located and draws the one end that gluey inslot is less than the outer terminal surface that keeps off the muscle.

After the technical scheme is adopted, the utility model has the following advantages: the blocking rib is arranged adjacent to the connecting hole, so that the experimental finger inserted into the connecting hole can be blocked through the blocking rib to interfere the experimental finger to be inserted into the connecting hole, and one end of the fastener in the glue drawing groove is lower than the outer end face of the blocking rib, so that the experimental finger can be prevented from contacting one end of the fastener in the glue drawing groove, and if the fastener is electrified, the risk of electric shock of the experimental finger can be prevented, and the product meets the requirements of safety regulations; in addition, because the rib extends along the back of the side plate to the surface direction of the side plate, the extending direction of the rib is the same as the demoulding direction of the inclined roof, so that the injection molding of the rib can be realized by hollowing out the part of the existing inclined roof corresponding to the rib, the improvement on the existing mould is smaller, and the mould opening cost is reduced.

Further, keep off the muscle and will draw gluey groove internal separation and form first cavity and second cavity, the opening of first cavity is less than the opening of second cavity, and the connecting hole is located first cavity. The design is that the part of the notch of the glue digging groove corresponding to the connecting hole is reduced through the blocking rib so as to prevent the experimental finger from being inserted into the first cavity, thereby avoiding the risk of electric shock; in addition, can also make the both ends that keep off the muscle be connected with the lateral wall respectively to this further promotes the structural strength who keeps off the muscle, and then guarantees the effect of blockking to the experiment finger.

Further, the side wall further comprises a second side wall and two third side walls connected between the first side wall and the second side wall, the second side wall faces the surface direction of the side plate along the back surface of the side plate, and the blocking rib is connected between the two third side walls and connected with the second side wall and part of the third side walls to form the side wall of the first cavity. The design effectively shortens the length of the retaining rib and effectively reduces the opening of the first cavity so as to further prevent the experimental finger from being inserted into the first cavity through the opening.

Further, the blocking ribs are arc ribs or straight ribs or wavy ribs. The structure of the blocking rib can be simplified by the design, so that the blocking rib can be conveniently injection molded.

Further, the blocking rib is an arc rib, and the circle center of the arc rib is positioned on the central line of the connecting hole. By the design, the inclined roof can be conveniently processed and molded, so that the transformation cost of the die is further reduced.

Further, a plurality of supporting ribs are further arranged in the second cavity, the supporting ribs extend along the direction from the back surface of the side plate to the surface of the side plate, and the outer end surfaces of the supporting ribs are coplanar with the surface of the side plate. The design is that the operation mask arranged on the surface of the side plate can be supported by the supporting ribs, so that when a user presses the part of the operation mask corresponding to the glue drawing groove by mistake, the operation mask at the position is prevented from sinking, and the appearance of the product is ensured; in addition, the supporting ribs extend along the direction from the back of the side plate to the surface of the side plate, so that the extending direction of the supporting ribs is the same as the demolding direction of the inclined roof, and therefore, the injection molding of the supporting ribs can be realized by hollowing out the part of the existing inclined roof corresponding to the supporting ribs, the improvement on the existing mold is small, and the mold opening cost is reduced.

Further, the length direction of the rib extends from the first side wall to the connecting hole. By means of the design, structural strength of the blocking rib can be guaranteed through connection of one end of the blocking rib and the first side wall, breakage of the blocking rib is avoided, the distance between the blocking rib and the side wall of the part, opposite to the blocking rib, of the glue drawing groove is effectively reduced, further the experiment finger is prevented from contacting a fastener located between the blocking rib and the side wall of the glue drawing groove, and electric shock risks are avoided.

Further, the outer end surfaces of the blocking ribs are coplanar with the surfaces of the side plates. By the design, the operation mask arranged on the surface of the side plate is supported by the outer end face of the baffle rib, so that when a user presses the part of the operation mask corresponding to the glue drawing groove by mistake, the operation mask at the position is sunken, and the appearance of a product is guaranteed.

Further, the thickness of the blocking rib is the same as the thickness of the side wall of the glue digging groove. By the design, appearance defects such as shrinkage caused by overlarge thickness of the blocking rib can be avoided, and the phenomenon that the experimental finger contact fastener cannot be blocked due to breakage caused by overlarge thickness of the blocking rib can be avoided.

Still another object of the present utility model is to provide an electromagnetic heating apparatus, including a housing and an electromagnetic coil disposed in the housing, where the housing includes a base and an upper cover assembly, and the upper cover assembly adopts any one of the above-mentioned upper cover assemblies, and the upper cover assembly further includes a recess plate mounted on the upper cover.

[ Description of the drawings ]

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a cross-sectional view of an upper cover assembly of the prior art;

FIG. 2 is a schematic view of an exploded view of an upper cover assembly according to one embodiment of the present utility model;

FIG. 3 is a schematic view illustrating assembly of an upper cover assembly according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of the structure at A of FIG. 3 in accordance with the present utility model;

FIG. 5 is a cross-sectional view of the upper cover assembly of the present utility model;

FIG. 6 is an enlarged view of the structure at B of FIG. 5 in accordance with the present utility model;

FIG. 7 is a schematic view of a rib according to another embodiment of the present utility model;

FIG. 8 is a schematic view of a rib structure according to another embodiment of the present utility model;

FIG. 9 is a schematic diagram of an exploded structure of an electromagnetic heating device according to another embodiment of the present utility model;

reference numerals:

100. An upper cover; 110. a side plate; 120. drawing a glue groove; 1201. a first cavity; 1202. a second cavity; 121. a bottom wall; 1210. a connection hole; 122. a first sidewall; 123. a second sidewall; 124. a third sidewall; 130. a blocking rib; 200. a display panel; 300. a fastener; 400. an electromagnetic wire coil; 500. a base; 600. a panel; 700. a concave plate; 800. and (3) a steel ring.

[ Detailed description ] of the invention

The utility model provides an upper cover assembly, which comprises a display plate and an upper cover, wherein the upper cover is provided with a side plate which is obliquely arranged, the side plate is provided with a glue digging groove, the glue digging groove comprises a side wall and a bottom wall, the side wall comprises a first side wall which extends along the up-down direction of the upper cover, the bottom wall is provided with a connecting hole, the connecting hole extends along the direction from the back surface of the side plate to the surface of the side plate, a fastening piece penetrates through the display plate and is fixed with the connecting hole, a blocking rib which extends along the direction from the back surface of the side plate to the surface of the side plate is also arranged in the glue digging groove, the blocking rib is adjacent to the connecting hole, and one end of the fastening piece in the glue digging groove is lower than the outer end surface of the blocking rib.

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model. In addition, it is to be understood that the terms "upper," "lower," "left," "right," "longitudinal," "transverse," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like, which refer to an orientation or positional relationship, are merely based on the orientation or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices/elements referred to must have a specific orientation or be configured and operated in a specific orientation, and thus are not to be construed as limiting the present utility model.

The technical scheme of the utility model is described in detail below by specific examples. The following specific embodiments may be combined with or replaced with each other according to actual situations, and the same or similar concepts or processes may not be described in detail in some embodiments.

As shown in fig. 2 to 6, the present utility model provides an upper cover assembly, which comprises an upper cover 100 and a display panel 200, wherein the upper cover 100 is provided with a side plate 110 which is obliquely arranged, the side plate 110 is provided with a glue-drawing slot 120, the glue-drawing slot 120 comprises a side wall and a bottom wall 121, the side wall comprises a first side wall 122 extending along the up-down direction of the upper cover 100, the bottom wall 121 is provided with a connecting hole 1210, the connecting hole 1210 extends along the direction of the back surface of the side plate towards the surface of the side plate, a fastener 300 penetrates through the display panel 200 and is fixed with the connecting hole 1210, a blocking rib 130 extending along the back surface of the side plate towards the surface of the side plate is further arranged in the glue-drawing slot 120, and the blocking rib 130 is adjacent to the connecting hole 1210, so that experimental fingers inserted into the connecting hole 1210 can be interfered by the blocking rib 130, and one end of the fastener 300 positioned in the glue-drawing slot 120 is lower than the outer end surface of the blocking rib 130, so that the experimental fingers can be prevented from contacting one end of the fastener 300 positioned in the glue-drawing slot 120, if the experimental fingers are electrified, and the risk of electric shock can be prevented from meeting requirements of product safety requirements; in addition, because the rib 130 extends along the back of the side plate towards the surface of the side plate, the extending direction of the rib 130 is the same as the demoulding direction of the inclined roof, so that the part of the inclined roof corresponding to the rib 130 is hollowed out to realize injection molding of the rib 130, and the improvement on the existing mould is smaller, thereby reducing the mould opening cost.

Specifically, in the embodiment, the fastening member 300 may be a metal screw, a pin, a rivet, or the like, and in order to facilitate the user penetrating the display panel, the side plate 110 is disposed on the front side of the upper cover 100, and the bottom end of the side plate 110 extends gradually and obliquely outwards, so that the side plate 110 is obliquely disposed. The side wall of the glue drawing groove further comprises a second side wall 123 and two third side walls 124 connected between the first side wall 122 and the second side wall 123, wherein the two third side walls 124 are oppositely arranged, the second side wall 123 is oppositely arranged with the first side wall 122, the second side wall 123 extends from the back of the side plate to the surface of the side plate, the third side wall 124 extends from the back of the side plate to the surface of the side plate, the surface of the side plate is a side surface of the side plate far away from the display plate 200, the back of the side plate is a side surface of the side plate close to the display plate 200, namely, the extending direction of the second side wall 123 and the extending direction of the third side wall 124 are both perpendicular to the surface of the side plate, the bottom wall 121 is obliquely arranged and parallel to the surface of the side plate, the axis of the connecting hole 1210 is perpendicular to the surface of the side plate, and the extending direction of the retaining rib 130 is also perpendicular to the surface of the side plate, so that the oblique top demolding and the slide block core pulling are facilitated.

The rib 130 in this embodiment separates the interior of the glue slot 120 to form a first cavity 1201 and a second cavity 1202, the opening of the first cavity 1201 is smaller than the opening of the second cavity 1202, the connecting hole 1210 is located in the first cavity 1201, and one end of the fastener 300 located in the first cavity 1201 is lower than the opening of the first cavity 1201. By the design, the part of the notch of the glue digging groove corresponding to the connecting hole 1210 can be reduced through the blocking rib 130, so that the experimental finger is prevented from being inserted into the first cavity 1201, and the electric shock risk is avoided; in addition, the two ends of the blocking rib 130 can be respectively connected with the side walls, so that the structural strength of the blocking rib 130 is further improved, and the blocking effect on the experimental finger is further ensured.

Preferably, the rib 130 in this embodiment is connected between the two third side walls 124, the rib 130 is connected with the second side wall 123 and part of the third side walls 124 to form a side wall of the first cavity 1201, and the rib 130 is disposed adjacent to the connecting hole 1210, so that the distance between the rib 130 and the second side wall 123 is smaller than the width of the experimental finger and the thickness dimension of the experimental finger, and further, the opening of the first cavity 1201 is smaller than the width dimension of the experimental finger and the thickness dimension of the experimental finger, so as to achieve the purpose of preventing the experimental finger from being inserted into the first cavity 1201; in addition, the rib 130 is connected between the two third side walls 124, so that the length of the rib 130 can be effectively shortened, and further the material cost is reduced.

It should be noted that, in this embodiment, the arrangement of the rib 130 adjacent to the connection hole 1210 means: the distance between the rib 130 and the second side wall 123 is smaller than the width dimension and the thickness dimension of the experimental finger.

In order to simplify the structure of the rib 130, so as to facilitate injection molding of the rib 130, the rib 130 in this embodiment is an arc rib, a straight rib or a wavy rib. The rib 130 is preferably an arc rib, and the center of the arc rib is located on the center line of the connecting hole 1210. By the design, the inclined roof can be conveniently processed and molded, so that the transformation cost of the die is further reduced. Of course, alternatively, in the case that the blocking rib is an arc rib, the arc rib may also arch toward the direction of the connection hole.

In addition, in this embodiment, the outer end surface of the rib 130 is coplanar with the surface of the side plate 110, so that the outer end surface of the rib 130 can support the operation mask on the surface of the side plate, so as to prevent the operation mask from being recessed when a user presses the position of the operation mask corresponding to the glue-drawing slot 120, thereby ensuring the appearance of the product.

Preferably, a plurality of supporting ribs (not shown in the drawings) are further disposed in the second cavity 1202 in this embodiment, the supporting ribs extend along the direction from the back of the side plate to the surface of the side plate, that is, the extending direction of the supporting ribs is perpendicular to the surface of the side plate, the supporting ribs are parallel to the third side wall or the supporting ribs are parallel to the second side wall or the supporting ribs are parallel to the blocking ribs, and the outer end surfaces of the supporting ribs are coplanar with the surface of the side plate. By the design, the operation mask arranged on the surface of the side plate can be supported by the supporting ribs, the supporting effect on the operation mask is improved, and further, when a user presses the part of the operation mask corresponding to the glue drawing groove by mistake, the operation mask at the position is recessed, so that the appearance of a product is ensured; in addition, the supporting ribs extend along the direction from the back of the side plate to the surface of the side plate, so that the extending direction of the supporting ribs is the same as the demolding direction of the inclined roof, and therefore, the injection molding of the supporting ribs can be realized by hollowing out the part of the existing inclined roof corresponding to the supporting ribs, the improvement on the existing mold is small, and the mold opening cost is reduced.

Finally, the thickness of the rib 130 is the same as the thickness of the sidewall of the undercut groove in this embodiment, that is, the thickness of the rib 130, the thickness of the first sidewall 122, the thickness of the second sidewall 123, and the thickness of the third sidewall 124 are all the same. By the design, the appearance defects such as shrinkage caused by overlarge thickness of the blocking rib 130 can be avoided, and the phenomenon that the experimental finger contact fastener 300 cannot be blocked due to breakage caused by overlarge thickness of the blocking rib 130 can be avoided.

It can be appreciated that in other embodiments of the present utility model, the rib may be connected only to the bottom wall of the glue groove, and the rib is disposed adjacent to the connecting hole and between the connecting hole and the first sidewall, so long as the distance between the rib and the second sidewall is ensured to be smaller than the width dimension and the thickness dimension of the experimental finger, the rib is disposed adjacent to the connecting hole.

It can be appreciated that in other embodiments of the present utility model, the outer end surface of the blocking rib may also be located in the glue-drawing slot, that is, the slot opening corresponding to the glue-drawing slot is retracted, so long as the outer end surface of the blocking rib is higher than one end of the fastener located in the glue-drawing slot, so as to achieve the blocking effect on the experimental finger.

In another embodiment of the present utility model, as shown in fig. 7, the length direction of the rib 130 extends from the first side wall 122 toward the connecting hole 1210, and the distance between the end of the rib 130 near the connecting hole 1210 and the second side wall 123 is smaller than the width dimension and the thickness dimension of the experimental finger, so that the rib 130 is disposed near the connecting hole 1210. So design, can guarantee the structural strength who keeps off muscle 130 through the one end that keeps off muscle 130 and first lateral wall 122 are connected, avoid it to take place the fracture, can make effectively reduce the distance between fender muscle 130 and the second lateral wall 123 again, and then prevent the experiment finger to contact the fastener that is located between fender muscle 130 and the second lateral wall 123, avoid taking place the electric shock risk from this.

In another embodiment of the present utility model, as shown in fig. 8, the rib 130 extends from the third sidewall 124 toward the connecting hole 1210, the connecting hole 1210 is located between the rib 130 and the second sidewall 123, and the distance between the end of the rib 130 near the connecting hole 1210 and the second sidewall 123 is smaller than the width dimension and the thickness dimension of the experimental finger, so that the rib 130 is disposed adjacent to the connecting hole 1210. By the design, the experimental finger can be blocked from contacting the fastener.

In another embodiment of the utility model, the rib extends from the position of the third side wall corresponding to the connecting hole towards the connecting hole direction, the rib is parallel to the second side wall, and the distance between one end of the rib close to the connecting hole and the other third side wall is smaller than the width dimension and the thickness dimension of the experimental finger, so that the rib can be arranged adjacent to the connecting hole. By the design, the experimental finger can be blocked from contacting the fastener through the blocking rib. Or the parts of the two third side walls corresponding to the connecting holes are respectively provided with a blocking rib extending towards the direction of the connecting holes, the two blocking ribs are parallel to the second side walls, and the distance between the two blocking ribs is smaller than the width dimension and the thickness dimension of the experimental finger.

In addition, as shown in fig. 9, in another embodiment of the present utility model, there is further provided an electromagnetic heating apparatus, including a housing and an electromagnetic coil 400 disposed in the housing, wherein the housing includes a base 500 and an upper cover assembly, the upper cover assembly is an upper cover assembly according to any one of the above-mentioned technical schemes, the base 500 is connected with the upper cover 100, the upper cover assembly further includes a panel 600, a recess plate 700 and a steel rim 800, wherein the panel 600 is adhesively fixed on the top of the upper cover 100, a mounting hole is provided on the panel 600, the bottom of the recess plate 700 is disposed through the mounting hole, an edge of the recess plate 700 is disposed above the panel 600, an upper end of the steel rim 800 is bent inwards to form a rim covering the edge of the recess plate 700, and a lower end of the steel rim 800 is adhesively fixed on the panel 600.

It will be appreciated that in other embodiments of the utility model, the upper cover may also be a circular upper cover, except that the side walls of the upper cover on the front side form the side panels.

It is to be understood that in other embodiments of the present utility model, the cover assembly of the present utility model may also be applied to electromagnetic cooking appliances such as electric cookers, electric hot pots, electric steamers, etc., and will not be described in detail herein.

In addition to the preferred embodiments described above, other embodiments of the present utility model are also contemplated as falling within the scope of the claimed utility model, as well as all other embodiments that may be made by one of ordinary skill in the art without making any inventive effort based on the embodiments of the present utility model.

Claims

1. The utility model provides an upper cover subassembly, includes display panel and upper cover, the upper cover has the curb plate that the slope set up, the curb plate is equipped with draws the gluey groove, draw the gluey groove and include lateral wall and diapire, the lateral wall includes the first lateral wall that extends along the upper cover's upper and lower direction, the diapire is equipped with the connecting hole, the connecting hole extends to the direction on curb plate surface along the curb plate back, and the fastener runs through the display panel and with the connecting hole is fixed, a serial communication port, draw still to be equipped with in the gluey groove and follow the curb plate back to the fender muscle that curb plate surface direction extends, keep off the muscle adjacent the connecting hole sets up, just the fastener is located and draws the one end that gluey inslot is less than the outer terminal surface that keeps off the muscle.

2. The cover assembly of claim 1, wherein the rib separates the interior of the undercut to form a first cavity and a second cavity, the opening of the first cavity being smaller than the opening of the second cavity, the connecting hole being located in the first cavity.

3. The cover assembly of claim 2, wherein the side walls further comprise a second side wall and two third side walls connected between the first side wall and the second side wall, the second side wall being oriented along the back of the side panel toward the surface of the side panel, and the rib being connected between the two third side walls and connected to the second side wall and a portion of the third side walls to form the side walls of the first cavity.

4. A cover assembly as claimed in claim 2, wherein the ribs are arcuate ribs or straight ribs or wavy ribs.

5. The cover assembly of claim 4, wherein the rib is an arcuate rib, and the center of the arcuate rib is located on the centerline of the connecting hole.

6. The cover assembly of claim 2, wherein a plurality of support ribs are further provided in the second cavity, the support ribs extending in a direction from the back of the side plate toward the surface of the side plate, and wherein the outer end surfaces of the support ribs are coplanar with the surface of the side plate.

7. The cover assembly of claim 1, wherein the length of the ribs extends from the first sidewall toward the attachment aperture.

8. A cover assembly according to any one of claims 1 to 7, wherein the outer end surface of the rib is coplanar with the surface of the side panel.

9. A cap assembly according to any one of claims 1 to 7, wherein the ribs have the same thickness as the side walls of the undercut groove.

10. An electromagnetic heating device, comprising a shell and an electromagnetic wire coil arranged in the shell, wherein the shell comprises a base and an upper cover assembly, and the electromagnetic wire coil is characterized in that the upper cover assembly adopts the upper cover assembly according to any one of claims 1 to 9, and the upper cover assembly further comprises a concave plate arranged on the upper cover.