CN215682802U

CN215682802U - Electric appliance shell and main board module

Info

Publication number: CN215682802U
Application number: CN202120324920.4U
Authority: CN
Inventors: 罗源
Original assignee: Suzhou Yuankong Electronic Technology Co ltd
Current assignee: Suzhou Yuankong Electronic Technology Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2022-01-28
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses an electric appliance casing and a mainboard module, wherein the electric appliance casing comprises a main casing body and a top cover fixed on the top of the main casing body; the main shell comprises a first panel, a second panel, a third panel, a fourth panel and a bottom plate, wherein the first panel, the second panel, the third panel and the fourth panel are sequentially connected end to end, and the bottom plate is integrally formed with any one panel; the first panel is provided with a first port group, and the fourth panel is provided with a second port group; the first panel and the second panel are integrally formed, or the second panel and the third panel are integrally formed. The main board module comprises the electric appliance shell and a main board fixed inside the electric appliance shell. The electric appliance shell comprises three open structures in the lateral direction, and the electric appliance shell can be matched with an electronic device more compactly; the space utilization rate is high, basically no space is wasted, and the minimization of the product volume and the minimization of the cost can be realized; and the structure is few, and the assembly is convenient. The main board module has compact integral structure, and can reduce the volume and the manufacturing cost.

Description

Electric appliance shell and main board module

Technical Field

The utility model relates to the technical field of electronic equipment and accessories thereof, in particular to an electric appliance shell and a mainboard module.

Background

Some electronic devices are provided with terminals for electrical connection to other components.

In some electronic devices, terminals are required to be provided on both sides of the device, respectively, as in the case of motherboard terminals, terminals are required to be provided on both sides, respectively. For such an electronic device that requires terminals to be disposed on two side surfaces, a mode of opposite surface layout or adjacent surface layout may be adopted, where the opposite surface layout is to dispose terminals on two opposite sides of the device, and the adjacent surface layout is to dispose terminals on adjacent side surfaces of the device. Meanwhile, the electronic device needs to be installed in the electrical appliance casing to protect the electronic device, and thus, a connection port needs to be formed in the side surface of the electrical appliance casing so as to expose a terminal of the device.

In the prior art, for an electronic device with terminals disposed on adjacent surfaces, a U-shaped aluminum extrusion is generally used for an electrical apparatus main housing matched with the electronic device, a connection port is formed on one side surface of the U-shaped aluminum extrusion to expose the side surface terminals of the device, an I/O (input/output) blocking piece is fixed at a side opening of the U-shaped aluminum extrusion, and a connection port is formed on the I/O (input/output) blocking piece to expose the front surface terminals of the device.

However, such a structure of the housing of the electric appliance has disadvantages of wasting space and wasting material, and cannot minimize the product and cost.

SUMMERY OF THE UTILITY MODEL

One object of an embodiment of the present invention is to: provided is an electric appliance casing which has a high space utilization rate, and can minimize the volume and the cost.

Another object of an embodiment of the present invention is to: the mainboard module has the advantages of compact structure, high space utilization rate, reduced product volume and reduced product manufacturing cost.

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

an electric appliance shell comprises a main shell and a top cover fixed on the top of the main shell; the main shell comprises a first panel, a second panel, a third panel and a fourth panel which are sequentially connected end to end, and a bottom plate which is integrally formed with the first panel, the second panel, the third panel or the fourth panel; the first panel is provided with a first port group, and the fourth panel is provided with a second port group;

the first panel and the second panel are integrally formed, and the second panel and the third panel, the third panel and the fourth panel, and the fourth panel and the first panel are connected through connecting pieces; or, the second panel and the third panel are integrally formed, and the third panel and the fourth panel, the fourth panel and the first panel, and the first panel and the second panel are connected through connecting pieces.

Preferably, the top cover comprises a cover body and a heat dissipation tooth fixed at the top of the cover body; the main casing body is fixed at the bottom of the cover body through a connecting piece.

Preferably, the bottom of the top cover is provided with a riveting column, and the riveting column is used for fixing the electronic device.

Preferably, the top cover and the rivet post are integrally formed.

Preferably, the connector further comprises a switching stud, wherein the switching stud comprises a first connecting part and a second connecting part, the first connecting part is provided with an external thread, and the second connecting part is provided with a switching threaded hole;

the bottom of the top cover is provided with a fixing threaded hole, the top of the first panel is provided with a first folding lug, the first folding lug is provided with a first through hole, and the first connecting part penetrates through the first through hole to be connected with the fixing threaded hole so as to fix the first panel on the top cover; the second connecting portion is used for fixing an electronic device.

Preferably, when the first panel and the second panel are integrally formed, the main housing includes a first plate, a second plate and a third plate; the first panel comprises the first panel and the second panel; the second panel body comprises the third panel and the bottom panel which are integrally formed; the third panel body includes the fourth panel.

Preferably, the device also comprises a screw and a switching stud; the top of the first panel is provided with a first folding lug, and the first folding lug is provided with a first through hole; a second folding lug is arranged at the top of the second panel, and a second through hole is formed in the second folding lug;

the bottom of the top cover is provided with a plurality of fixing threaded holes; the screw penetrates through the first through hole or the second through hole to be in threaded connection with the fixing threaded hole, and the adapter stud penetrates through the second through hole or the first through hole to be in threaded connection with the fixing threaded hole, so that the second plate body is fixed to the top cover; the adapter stud is also used for fixing an electronic device.

Preferably, a first bending and turning plate is provided at an end of the first panel, and the fourth panel is fixed to the first bending and turning plate by a fastening member; or a first bending and turning plate is arranged at the end part of the fourth panel, and the first panel is fixed on the first bending and turning plate through a fastener;

a second bending and turning plate is arranged at the end part of the fourth panel, and the third panel is fixed on the second bending and turning plate through a fastener; or a second bending and turning plate is arranged at the end part of the third panel, and the fourth panel is fixed on the second bending and turning plate through a fastener;

a third bending and rotating connecting plate is arranged at the end part of the second panel, and the third panel is fixed on the third bending and rotating connecting plate through a fastener; or a third bending and rotating connecting plate is arranged at the end part of the third panel, and the second panel is fixed on the third bending and rotating connecting plate through a fastener.

Preferably, the base plate is secured to the first panel and/or the second panel and/or the fourth panel by fasteners.

A mainboard module comprises the electric appliance shell and a mainboard fixed inside the electric appliance shell.

The utility model has the beneficial effects that: the electrical appliance casing comprises three split casing structures in the lateral direction, and the electrical appliance casing and an electronic device can be more compactly matched; the space utilization rate is high, basically no space is wasted, and the minimization of the product volume and the minimization of the cost can be realized; and the structure is few, and the assembly is convenient. The main board module has compact integral structure, can reduce the volume of a product and reduce the manufacturing cost of the product.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

FIG. 1 is an exploded view of an electrical enclosure according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a top cover of an electrical enclosure according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an angle of a first plate of an electrical appliance housing according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another angle of the first plate of the electrical enclosure according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a third plate of the electrical appliance casing according to the embodiment of the present invention;

fig. 6 is an assembly view of the first plate and the top cover according to the embodiment of the present invention;

fig. 7 is a schematic front view of an electrical enclosure according to an embodiment of the present invention.

In the figure: 10. a top cover; 11. a cover body; 111. riveting columns; 112. fixing the threaded hole; 12. a heat dissipating tooth; 21. a first plate body; 211. a first panel; 2111. a first port set; 2112. a first folding lug; 212. a second panel; 2121. a second folding lug; 2122. a third bending and turning plate; 22. a second plate body; 221. a third panel; 222. a base plate; 23. a third plate body; 231. a fourth panel; 2311. a second port set; 2312. a first bending and turning plate; 2313. the second bending and connecting plate; 30. a screw; 40. a switching stud; 90. a main board.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "fixed" are to be understood broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The utility model provides an electric appliance casing which has few structural parts, simple structure and convenient assembly, and the casing structure does not exceed four parts; and the volume space utilization rate is high, basically no space is wasted, and the volume minimization and the material cost minimization are realized.

The adjacent surface electronic devices of the terminals are respectively arranged on the two adjacent side surfaces and are suitable for being installed in the electric appliance shell. The electronic device may be a circuit board 90 or other electronic structure. When the electronic device is a main board 90, the main board 90 is installed inside the electrical enclosure to form a main board 90 module.

As shown in fig. 1 to 7, in an embodiment of the electrical appliance housing of the present invention, the electrical appliance housing includes a main housing and a top cover 10 fixed to a top of the main housing; the electric appliance casing is used for installing a main board 90;

the main housing comprises a first panel 211, a second panel 212, a third panel 221, a fourth panel 231 which are sequentially connected end to end, and a bottom plate 222 which is integrally formed with the first panel 211, the second panel 212, the third panel 221 or the fourth panel 231; the first panel 211 is provided with a first port group 2111, and the fourth panel 231 is provided with a second port group 2311; the first port set 2111 includes one or more connection ports, and the second port set 2311 includes one or more connection ports;

the first panel 211 and the second panel 212 are integrally formed, and the second panel 212 and the third panel 221, the third panel 221 and the fourth panel 231, and the fourth panel 231 and the first panel 211 are connected through connecting pieces; or, the second panel 212 and the third panel 221 are integrally formed, and the third panel 221 and the fourth panel 231, the fourth panel 231 and the first panel 211, and the first panel 211 and the second panel 212 are connected by a connecting member; or, the third panel 221 and the fourth panel 231 are integrally formed, and the fourth panel 231 and the first panel 211, the first panel 211 and the second panel 212, and the second panel 212 and the third panel 221 are connected by a connecting member.

The first panel 211, the second panel 212, the third panel 221 and the fourth panel 231 are all side panels of the chassis.

Specifically, the connection ports within the first port group 2111 are used to provide mounting locations for the front terminals of the motherboard 90, and the connection ports within the second port group 2311 are used to provide mounting locations for the side terminals of the motherboard 90. The front and side terminals of motherboard 90 may be, but are not limited to: I/O terminals such as HDM I terminal, USB terminal, network port terminal, AV terminal, etc.

When the electrical enclosure of the present invention is assembled with the motherboard 90, the front terminal of the motherboard 90 is aligned with the first port set 2111 of the first panel 211, the motherboard 90 is fixed on the top cover 10, and then the second port set 2311 of the fourth panel 231 is aligned with the side terminal of the motherboard 90.

In the prior art, a connecting port is formed in one side wall of the U-shaped aluminum extrusion, when the main board 90 is installed and the front terminal of the main board 90 is inserted into the connecting port of the U-shaped aluminum extrusion, a large gap remains between the main board 90 and the other side wall of the U-shaped aluminum extrusion, which wastes space and materials.

According to the electric appliance shell, the side panel is of a three-split shell structure which is arranged in a split mode, so that the assembling flexibility and compactness can be higher.

Specifically, the third panel 221 located at the opposite side of the first panel 211 is configured to: is arranged separately from the first panel 211; thus, when the motherboard 90 is installed in the chassis, the front terminals of the motherboard 90 may be aligned with the first port set 2111 of the first panel 211, and then the third panel 221 is fixed, where the third panel 221 is disposed close to the motherboard 90; when the main board 90 is loaded, the third panel 221 does not block the main board 90; after the assembly of the enclosure and the main board 90 is completed, there is no gap or a very small gap between the third panel 221 and the main board 90, so that the compactness of the overall structure can be improved, the space utilization rate is high, no space is wasted basically, and the minimization of the volume and the minimization of the material cost can be realized.

In addition, the first panel 211 and the fourth panel 231 provided with the ports are separately arranged, so that when the mainboard 90 module is assembled, the front terminal of the mainboard 90 and the first port group 2111, and the side terminal of the mainboard 90 and the second port group 2311 can be respectively installed in an alignment manner, the assembly is convenient, and the assembled structure is more compact.

In addition, the electrical appliance shell of the utility model adopts few structural components, when the top cover 10 and the main shell are separately arranged, only four shell structures are provided, and when the top cover 10 and any one of the four panels are integrally formed, only three shell structures are provided; thus, the structure is simple and the assembly is convenient.

In the present embodiment, the first panel 211 is a front panel, the second panel 212 is a left panel, the third panel 221 is a rear panel, and the fourth panel 231 is a right panel.

In this embodiment, in order to make the installation more reliable, a fastener is used as the connecting member in the above structure. The fasteners may be, but are not limited to, threaded members, rivets.

In other embodiments, a fastener or the like may be used as the connecting member.

The main housing includes a first plate 21, a second plate 22 and a third plate 23, and on the basis of the above structure, the main housing can be implemented at least by, but not limited to, the following ways:

the first implementation mode comprises the following steps: the first panel body 21 includes a first panel 211 and a second panel 212 which are integrally formed, the second panel body 22 includes a third panel 221 and a bottom panel 222 which are integrally formed, and the third panel body 23 includes a fourth panel 231;

the second embodiment: the first board body 21 includes a first panel 211, the second board body 22 includes a second panel 212, a third panel 221 and a bottom panel 222 which are integrally formed, and the third board body 23 includes a fourth panel 231;

the third embodiment is as follows: the first panel 21 includes a first face plate 211, the second panel 22 includes a second face plate 212 and a bottom plate 222 which are integrally formed, and the third panel 23 includes a third face plate 221 and a fourth face plate 231 which are integrally formed.

The present invention preferably adopts a structure in which the bottom plate 222, the first panel 211 and the fourth panel 231 are separately disposed, so as to facilitate the assembly between the terminals of the main board 90 and the first port group 2111 and the second port group 2311, and the electrical enclosure adopting such a structure can cover the bottom plate 222 after the assembly of the main board 90, the first panel 211 and the fourth panel 231 is completed, thereby preventing the bottom plate 222 from hindering the assembly of the main board 90.

In this embodiment, the top cover 10 has a heat dissipation function, and the top cover 10 is fixed to the main housing through a connector.

Specifically, the top cover 10 includes a cover body 11, and a heat dissipation tooth 12 fixed to the top of the cover body 11; the main housing is fixed to the bottom of the cover 11 by a coupling member. The heat dissipation of the electronic devices inside the electric appliance casing can be realized by adopting the top cover 10 integrated with the heat dissipation teeth 12.

It should be noted that the fixation between the top cover 10 and the main housing through the connecting member should not be taken as a limitation of the board utility model. In other embodiments, if the top cover 10 is made of a common sheet metal part, the top cover 10 and the first panel 211 or the fourth panel 231 may be integrally formed to form an electrical enclosure structure.

Preferably, in order to facilitate fixing the main board 90 to the top cover 10, a rivet 111 is provided at the bottom of the top cover 10, and the main board 90 is fixed to the top cover 10 by the rivet 111. The riveting mode can be pulling riveting or pressing riveting. During specific implementation, riveting fitting pieces such as rivets and the like matched with the riveting columns 111 can be adopted according to a production process to realize riveting of the main board 90 and the top cover 10. By adopting the riveted structure, the main board 90 can be reliably fixed to the top cover 10, and the assembly is convenient.

In addition to the above structure, in order to reduce the assembly steps when the main board 90 is assembled in the chassis, the rivet 111 and the top cover 10 are integrally formed, so that when the main board 90 is assembled in the top cover 10, the rivet 111 does not need to be installed on the main board 90, the assembly steps are reduced, and the assembly efficiency is improved.

Preferably, the first panel 211 is fixed to the top cover 10 by the adapter studs 40 in order to reduce the number of parts and holes, save space, and facilitate assembly.

Specifically, the adapter stud 40 includes a first connection portion and a second connection portion, the first connection portion is provided with an external thread, and the second connection portion is provided with an adapter threaded hole; the bottom of the top cover 10 is provided with a fixing threaded hole 112, the top of the first panel 211 is provided with a first tab 2112, the first tab 2112 is provided with a first through hole, and the first connecting part passes through the first through hole to be connected with the fixing threaded hole 112 so as to fix the first panel 211 to the top cover 10; the second connecting portion is used for fixing the main board 90; the main plate 90 can be screwed with the adapting screw hole of the second connecting part through the main plate 90 by the screw 30 to fix the main plate 90 to the top cover 10.

With such arrangement, the same fixing threaded hole 112 and the same adapter stud 40 can be used for fixing the first panel 211 and the top cover 10 and the main board 90 and the top cover 10 at the same time, so that the number of practical fasteners is reduced, the number of hole sites formed on the top cover 10 is reduced, and space is saved; and also facilitates assembly.

In another embodiment of the electrical appliance housing of the present invention, the electrical appliance housing is arranged by:

the first panel 211 is integrally formed with the second panel 212;

the main housing includes a first plate 21, a second plate 22, and a third plate 23; the first plate body 21 is an L-shaped plate body, and the first plate body 21 includes a first panel 211 and a second panel 212 which are integrally formed; the second plate 22 is an L-shaped plate, and the second plate 22 includes a third panel 221 and a bottom panel 222 which are integrally formed; the third panel 23 includes a fourth panel 231;

a first tab 2112 is arranged at the top of the first panel 211, and the first tab 2112 is provided with a first via hole; a second tab 2121 is disposed at the top of the second panel 212, and a second via hole is disposed in the second tab 2121; the bottom of the top cover 10 is provided with a plurality of fixing threaded holes 112; the screw 30 passes through the second through hole to be screwed with the fixing threaded hole 112, and the adapter stud 40 passes through the first through hole to be screwed with the fixing threaded hole 112, so as to fix the second plate body 22 to the top cover 10; the adapter stud 40 is also used to secure the electronics.

Preferably, one or two or more first tabs 2112 are provided on the top of the first panel 211 and one or two or more second tabs 2121 are provided on the top of the second panel 212.

On the basis of the above structure, the assembly of the main board 90 and the chassis is completed by the following method:

the first plate 21 mounting step: the top cover 10 and the first plate body 21 are arranged separately, and the first plate body 21 is fixed on the top cover 10 through a fastener;

mainboard 90 installation step: the front terminal of the main board 90 passes through the connection port on the first panel 211, passes through the first through hole by the adapter stud 40, passes through the second through hole by the screw 30, and simultaneously fixes the first board body 21 to the top cover 10 by the adapter stud 40 and the screw 30;

mounting the third plate 23: positioning the connection port of the fourth panel 231 (i.e., the third board 23) with the side terminal of the main board 90, moving the fourth panel 231 toward the main board 90, so that the side terminal passes through the connection port of the fourth panel 231, and fixing the fourth panel 231 to the first panel 211 by a fastener;

second plate 22 installation step: fixing both ends of the third panel 221 to the second panel 212 and the fourth panel 231, respectively, by fasteners; the floor is secured to the first panel 211 and/or the second panel 212 and/or the fourth panel 231.

In this embodiment, the first panel 211 and the second panel 212 are integrally formed, which can reduce the number of the chassis structural members, and the second panel 212 located at the adjacent side of the first panel 211 in the horizontal direction does not affect the alignment assembly between the main board 90 and the first port set 2111 of the first panel 211. The bottom plate 222 and the third panel 221 are integrally formed to form the second plate 22, which can reduce the number of the chassis structural members, and after the assembly of the main plate 90 is completed, the position of the second plate 22 is fixed, so that the bottom plate 222 does not affect the alignment assembly between the main plate 90 and the first port group 2111 and the second port group 2311.

In other embodiments, the stud 40 can be screwed to the top cover 10 through the second through hole, and the screw 30 can be screwed to the top cover 10 through the first through hole.

Preferably, in order to achieve the fixation between the fourth panel 231 and the first panel 211, the following steps may be performed:

a first bending turn plate 2312 is provided at an end of the first panel 211, and the fourth panel 231 is fixed to the first bending turn plate 2312 by a fastener; alternatively, the end of the fourth panel 231 is provided with a first bending turn plate 2312, and the first panel 211 is fixed to the first bending turn plate 2312 by a fastener.

Preferably, in order to achieve the fixation between the fourth panel 231 and the third panel 221, the following steps may be performed: a second bending and turning plate 2313 is provided at an end of the fourth panel 231, and the third panel 221 is fixed to the second bending and turning plate 2313 by a fastener; alternatively, the end of the third panel 221 is provided with a second bending and rotating plate 2313, and the fourth panel 231 is fixed to the second bending and rotating plate 2313 by a fastener.

Preferably, in order to realize the fixation between the second panel 212 and the third panel 221, the following steps are performed: a third bending and rotating plate 2122 is provided at an end of the second panel 212, and the third panel 221 is fixed to the third bending and rotating plate 2122 by a fastener; alternatively, a third bending and rotating plate 2122 is provided at an end of the third panel 221, and the second panel 212 is fixed to the third bending and rotating plate 2122 by a fastener.

Wherein the fastener may be, but is not limited to, a screw 30. The screw 30 in fig. 7 is a screw 30 for fixing the fourth panel 231 to the first panel 211.

The utility model further provides a motherboard 90 module, which includes the motherboard 90 and the electrical enclosure of the above embodiment. This mainboard 90 module, overall structure is compact, can reduce the product volume, reduces product manufacturing cost.

Preferably, the main board 90 module further includes a transfer stud 40 and a main board 90 fixing screw 30; the switching stud 40 comprises a first connecting part and a second connecting part, wherein the first connecting part is provided with an external thread, and the second connecting part is provided with a switching threaded hole;

the bottom of the top cover 10 is provided with a riveting column 111, and the main board 90 is fixed on the top cover 10 through the riveting column 111;

the bottom of the top cover 10 is also provided with a fixing threaded hole 112, the top of the main shell is provided with a folding lug, the folding lug is provided with a through hole, and the first connecting part penetrates through the through hole to be in threaded connection with the fixing threaded hole 112; the fixing screw 30 of the main plate 90 passes through the main plate 90 to be connected with the adapting threaded hole in a threaded manner, so as to fix the main plate 90.

In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are used in an orientation or positional relationship based on that shown in the drawings, and are used for convenience of description and simplicity of operation only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. An electric appliance shell is characterized by comprising a main shell and a top cover (10) fixed on the top of the main shell; the main shell comprises a first panel (211), a second panel (212), a third panel (221), a fourth panel (231) which are sequentially connected end to end, and a bottom plate (222) which is integrally formed with the first panel (211), the second panel (212), the third panel (221) or the fourth panel (231); the first panel (211) is provided with a first port group (2111), and the fourth panel (231) is provided with a second port group (2311);

the first panel (211) and the second panel (212) are integrally formed, and the second panel (212) and the third panel (221), the third panel (221) and the fourth panel (231), and the fourth panel (231) and the first panel (211) are connected through connecting pieces; or, the second panel (212) and the third panel (221) are integrally formed, and the third panel (221) and the fourth panel (231), the fourth panel (231) and the first panel (211), and the first panel (211) and the second panel (212) are connected through connecting pieces.

2. The appliance casing according to claim 1, wherein the top cover (10) comprises a cover body (11), and a heat dissipation tooth (12) fixed to the top of the cover body (11); the main shell is fixed at the bottom of the cover body (11) through a connecting piece.

3. The appliance casing according to claim 1, wherein the bottom of the top cover (10) is provided with a rivet (111), and the rivet (111) is used for fixing an electronic device.

4. The appliance casing according to claim 3, wherein the top cover (10) is integrally formed with the rivet (111).

5. The electric appliance casing as claimed in claim 1, further comprising an adapter stud (40), wherein the adapter stud (40) comprises a first connecting part and a second connecting part, the first connecting part is provided with an external thread, and the second connecting part is provided with an adapter threaded hole;

a fixing threaded hole (112) is formed in the bottom of the top cover (10), a first folding lug (2112) is arranged at the top of the first panel (211), a first through hole is formed in the first folding lug (2112), and the first connecting portion penetrates through the first through hole to be connected with the fixing threaded hole (112) so as to fix the first panel (211) to the top cover (10); the second connecting portion is used for fixing an electronic device.

6. The appliance casing according to any of claims 1 to 5, wherein the main housing comprises a first plate (21), a second plate (22) and a third plate (23) when the first panel (211) is integrally formed with the second panel (212); the first panel body (21) comprises the first panel (211) and the second panel (212); the second panel (22) comprises the third panel (221) and the bottom panel (222) which are integrally formed; the third panel (23) comprises the fourth panel (231).

7. The appliance casing of claim 6, further comprising a screw (30) and a transfer stud (40); a first folding lug (2112) is arranged at the top of the first panel (211), and a first through hole is formed in the first folding lug (2112); a second folding lug (2121) is arranged at the top of the second panel (212), and a second through hole is formed in the second folding lug (2121);

the bottom of the top cover (10) is provided with a plurality of fixing threaded holes (112); the screw (30) penetrates through the first through hole or the second through hole to be in threaded connection with the fixing threaded hole (112), and the adapter stud (40) penetrates through the second through hole or the first through hole to be in threaded connection with the fixing threaded hole (112) so as to fix the second plate body (22) to the top cover (10); the adapter stud (40) is also used for fixing an electronic device.

8. The electric appliance casing according to claim 6, wherein the end of the first panel (211) is provided with a first bent tab (2312), the fourth panel (231) being fixed to the first bent tab (2312) by means of fasteners; or, the end of the fourth panel (231) is provided with a first bending and turning plate (2312), and the first panel (211) is fixed to the first bending and turning plate (2312) through a fastener;

a second bending and turning plate (2313) is arranged at the end part of the fourth panel (231), and the third panel (221) is fixed to the second bending and turning plate (2313) through a fastener; or, the end of the third panel (221) is provided with a second bending and turning plate (2313), and the fourth panel (231) is fixed to the second bending and turning plate (2313) through a fastener;

a third bending and turning plate (2122) is arranged at the end part of the second panel (212), and the third panel (221) is fixed on the third bending and turning plate (2122) through a fastener; or a third bending and rotating connecting plate (2122) is arranged at the end part of the third panel (221), and the second panel (212) is fixed on the third bending and rotating connecting plate (2122) through a fastener.

9. The appliance cabinet according to claim 6, wherein the bottom plate (222) is fixed to the first panel (211) and/or the second panel (212) and/or the fourth panel (231) by fasteners.

10. A motherboard (90) module, characterized in that it comprises an appliance cabinet according to any of claims 1-9, and a motherboard (90) fixed inside the appliance cabinet.