Electric appliance box and air conditioner

Abstract

The utility model relates to an electric appliance box, which belongs to the technical field of electric appliance boxes and comprises a box body, a fireproof plate, a first mounting hole and a second mounting hole, electronic devices are mounted in the box body, and one side of the box body is open; the fireproof plate is arranged at the opening of the box body and covers the opening of the box body; the first mounting hole is formed in one side, provided with the opening, of the box body; the second mounting hole is formed in the fireproof plate; the fastener is made of a metal material and sequentially penetrates through the second mounting hole and the first mounting hole, so that the fireproof plate is mounted at the opening of the box body. The fireproof plate is installed at the opening of the box body through the fastener, thereby enabling the opening of the electric appliance box to form a sealed isolation structure, preventing the fireproof plate from falling off during combustion in the electric appliance box, improving the phenomenon that flame flies out of the electric appliance box, and improving the fireproof performance of the electric appliance box.

Description

Technical Field

[0001] The present application relates to the technical field of electrical boxes, and in particular to an electrical box and an air conditioner. Background Art

[0002] There are multiple electrical components inside various household appliances, and the operating status and operating mode of the electrical components of each part are uniformly controlled by the electronic control system. In order to protect the electronic control system from damage during use and transportation, the electronic control system is usually installed in an electrical box.

[0003] The electrical box includes an electrical box body and a cover plate, and the electrical box body is usually made of injection molding material. Since the electric control system includes heating components, abnormally high temperatures will cause fire inside the electrical box. The regulation function of the air conditioner is mainly controlled and regulated by the electronic components in the electrical box, so the quality of the electrical box affects the air conditioning function of the air conditioner to a certain extent.

[0004] At present, the sheet metal fireproof board is fixed to the cover plate with hooks. When the electrical components in the electrical box burn, the hooks melt and the fireproof board falls off. The flame burns through the plastic parts and burns to the outside of the machine, causing safety hazards and even causing deformation and failure of the electrical box, which will also reduce the service life of the electrical box. Utility Model Content

[0005] The utility model solves one of the technical problems in the related art at least to a certain extent.

[0006] To this end, the present application aims to provide an electrical box, in which a fireproof board is installed at the opening of the box body by fasteners, so as to prevent the fireproof board from falling off when the electrical box is burning and prevent the flame from escaping from the electrical box.

[0007] In order to achieve the above object, the utility model provides an electrical appliance box, comprising:

[0008] A box body, wherein an electronic device is installed in the box body, a side wall of the box body is an installation side, the interior of the box body is hollow, and the installation side is provided with an opening communicating with the interior of the box body;

[0009] A fireproof board, which is arranged at the opening of the box body and covers the opening of the box body;

[0010] a first mounting hole, the first mounting hole being opened on the mounting side;

[0011] A second mounting hole, the second mounting hole being opened in the fireproof board;

[0012] The fastener is made of metal and passes through the second mounting hole and the first mounting hole in sequence, so that the fireproof board is installed on the mounting side.

[0013] In the technical solution, the fireproof board is installed at the opening of the box body by fasteners, which prevents the fireproof board from falling off when the electrical box is burning, prevents the flame from escaping from the electrical box, and improves the fireproof performance of the electrical box.

[0014] Some embodiments of the present application further include a cover plate, which is arranged on a side of the fireproof plate away from the box body, a hook is provided on the side of the cover plate facing the box body, a slot is provided on the fireproof plate, the hook is engaged with the slot, a third mounting hole is provided on the cover plate, and the fastener passes through the third mounting hole.

[0015] In some embodiments of the present application, the fireproof panel includes a covering portion, an enclosure portion and a connecting portion, the enclosure portion is arranged on the outer side of the covering portion and together with the covering portion form a cavity, the side of the cavity away from the box body is spaced apart from the side of the cover plate facing the box body, the connecting portion is arranged on the side of the enclosure portion away from the covering portion, and the second mounting hole is opened in the connecting portion.

[0016] The utility model also provides an electrical appliance box, which is used to be arranged on an installation side, and the installation side is arranged on one side of the electrical appliance, and is characterized in that it includes:

[0017] A fireproof board, the fireproof board is used to be installed on the installation side, and an electronic device is provided on a side of the fireproof board facing the installation side;

[0018] a first mounting hole, the first mounting hole being opened on the mounting side;

[0019] A second mounting hole, the second mounting hole being opened in the fireproof board;

[0020] The fastener is made of metal and passes through the second mounting hole and the first mounting hole in sequence so that the fireproof board can be installed on the mounting side.

[0021] In the technical solution, the fireproof board is installed on one side of the electrical appliance by fasteners, which prevents the fireproof board from falling off when the electrical box is burning, prevents the flame from escaping from the electrical box, and improves the fireproof performance of the electrical box.

[0022] In some embodiments of the present application, an installation cavity is opened on the installation side, the electronic device is arranged in the installation cavity, and the fireproof board covers the installation cavity.

[0023] In some embodiments of the present application, a connecting portion is provided on the outer side of the fireproof board, the connecting portion is attached to the installation side, and the second installation hole is opened in the connecting portion.

[0024] In some embodiments of the present application, the number of the connecting parts is at least two, and the two connecting parts are respectively arranged on two sides of the fireproof board that are opposite to each other.

[0025] In some embodiments of the present application, a flange is provided on the outer side of the fireproof board, the flange is spaced apart from the connecting portion, and the flange is attached to the installation side.

[0026] In some embodiments of the present application, the fireproof board, the connecting portion and the flange are an integrally formed structure, and the fireproof board, the connecting portion and the flange are made of metal.

[0027] The utility model also provides an air conditioner, which comprises an air conditioner indoor unit and an air conditioner outdoor unit. The air conditioner indoor unit and / or the air conditioner outdoor unit are provided with the electrical appliance box.

[0028] In the technical solution, the fireproof board is installed on one side of the air conditioner by fasteners, which prevents the fireproof board from falling off when the electrical box is burning, prevents the flame from escaping from the electrical box, and improves the fireproof performance of the whole machine.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of an exploded structure of an electrical box according to an embodiment of the present application;

[0031] Figure 2 is a schematic diagram of the overall structure of an electrical box according to an embodiment of the present application;

[0032] Figure 3 It is a schematic diagram of the explosion structure at the fireproof plate of the electrical box according to the implementation mode of the present application;

[0033] Figure 4 is a schematic structural diagram of a cover plate according to an embodiment of the present application;

[0034] Figure 5 It is a schematic diagram of the explosion structure of the fireproof board and the cover plate according to the implementation mode of the present application;

[0035] Figure 6 is a schematic structural diagram of a fireproof board according to an embodiment of the present application;

[0036] Figure 7 is a structural stereogram of a fireproof board according to an embodiment of the present application;

[0037] Figure 8 is a rear view of the structure of the fireproof board according to the embodiment of the present application;

[0038] Fig. 9 It is a schematic diagram of the explosion structure of the fireproof board and the cover plate according to the implementation mode of the present application;

[0039] Fig.10 It is a structural schematic diagram of a fireproof board according to an embodiment of the present application;

[0040] Fig.11 is a structural schematic diagram of an air-conditioning outdoor unit according to an embodiment of the present application;

[0041] Fig.12 is a partial exploded schematic diagram of an air conditioner outdoor unit according to an embodiment of the present application;

[0042] Fig.13 It is a structural side view of an air-conditioning outdoor unit according to an embodiment of the present application.

[0043] In the above figures: 100, fireproof board; 101, slot; 200, first mounting hole; 300, second mounting hole; 400, fastener; 500, cover plate; 501, hook; 502, third mounting hole; 600, covering part; 700, enclosure part; 800, connecting part; 900, mounting side; 110, flange. DETAILED DESCRIPTION

[0044] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present utility model, unless otherwise clearly stipulated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] In the present utility model, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0048] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that, without further description, elements, structures and features in one embodiment may also be beneficially combined in other embodiments.

[0049] In the present application, the electrical box is used to be arranged on one side of an electrical appliance, preferably on one side of an air conditioner, electronic devices are installed in the electrical box, and the fireproof board is installed at the opening of the box body through fasteners.

[0050] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0051] As attached Figures 1 to 6 As shown, in an illustrative embodiment of an electrical box of the utility model, the electrical box includes a box body, a fireproof board 100, a first mounting hole 200, and a second mounting hole 300. An electronic device is installed in the box body, and one side wall of the box body is an installation side. The interior of the box body is hollow, and the installation side is provided with an opening connected to the interior of the box body; the fireproof board 100 is provided at the opening of the box body and covers the opening of the box body; the first mounting hole 200 is provided on a side of the box body where an opening is provided; the second mounting hole 300 is provided in the fireproof board 100; the fastener 400 is made of metal, and the fastener 400 sequentially passes through the second mounting hole 300 and the first mounting hole 200, so that the fireproof board 100 is installed at the opening of the box body.

[0052] Through the above scheme, the fireproof board 100 is installed at the opening of the box body through the fastener 400, so that the opening of the electrical box forms a sealed isolation structure, which prevents the fireproof board 100 from falling off when the electrical box is burning, improves the phenomenon of flames escaping from the electrical box, and improves the fireproof performance of the electrical box.

[0053] As attached Figures 6 to 8 As shown, in some embodiments, a cover plate 500 is further included, the cover plate 500 is arranged on the side of the fireproof board 100 away from the box body, a hook 501 is arranged on the side of the cover plate 500 facing the box body, a slot 101 is provided on the fireproof board 100, the hook 501 is clamped in the slot 101, a third mounting hole 502 is provided on the cover plate 500, and the fastener 400 passes through the third mounting hole 502. The buckle and the slot 101 are detachably connected to facilitate subsequent replacement or maintenance. The fastener 400 passes through the third mounting hole 502, the second mounting hole 300, and the first mounting hole 200 in sequence, so that the cover plate 500 and the fireproof board 100 are installed at the opening of the box body.

[0054] As attached Figures 9 and 10 As shown, in some embodiments, the fireproof board 100 includes a covering portion 600, a blocking portion 700 and a connecting portion 800. The blocking portion 700 is arranged on the outside of the covering portion 600 and encloses a cavity together with the covering portion 600. The side of the cavity away from the box body is spaced apart from the side of the cover plate 500 facing the box body. The connecting portion 800 is arranged on the side of the blocking portion 700 away from the covering portion 600, and the second mounting hole 300 is opened in the connecting portion 800. By covering the opening of the box body together with the blocking portion 700 and the covering portion 600, the flame can be blocked by the blocking portion 700 and the covering portion 600, thereby preventing the flame from escaping. In addition, the flame passing through the opening of the box body is contained by the cavity.

[0055] When installing the fireproof board 100, first snap the fireproof board 100 onto the cover plate 500, and then use the fastener 400 to fix the cover plate 500 and the fireproof board 100 together to the opening of the electrical box; when a flame appears in the electrical box, the flame is always in contact with the fireproof board 100 and cannot escape from the electrical box and burn the cover plate 500. There is a gap between the fireproof board 100 and the cover plate 500. When the temperature inside the electrical box is very high, the cover plate 500 will at most be slightly deformed, thereby improving the fireproof performance of the electrical box.

[0056] In some embodiments, the cover plate 500 and the hook 501 are an integrally formed structure, which is simple in structure and easy to process.

[0057] In some embodiments, there are two connecting parts 800 , which are respectively disposed on both sides of the enclosure 700 , and the connecting parts 800 are attached to the side walls of the box body. A second mounting hole 300 is provided on each connecting part 800 .

[0058] In some embodiments, there are multiple connecting parts 800, and the multiple connecting parts 800 are spaced apart at the edge of the enclosure 700. Each connecting part 800 is attached to the side wall of the box body, and each connecting part 800 is provided with a second mounting hole 300.

[0059] In some embodiments, the outer side of the fireproof board 100 is provided with a flange 110, which is spaced apart from the connecting portion 800 and is attached to the side wall of the box body. The flange 110 can better seal the inside of the box body to prevent flames from escaping from the gaps around the fireproof board 100.

[0060] In some embodiments, the box body and the cover 500 are both made of fireproof plastic materials. Plastic materials with corresponding fireproof grades can be selected according to product design requirements. The higher the fireproof grade, the better the fireproof performance.

[0061] In some embodiments, a receiving cavity is formed in the box body, and the electronic device is disposed in the receiving cavity to provide space for the electronic device to operate.

[0062] In some embodiments, the fireproof board 100 is made of metal material and has certain fireproof performance. The fireproof board 100 can insulate and prevent the circulation of internal and external heat. Even if a fire occurs in the electrical box, it can also prevent the fire from spreading.

[0063] In some embodiments, fastener 400 includes, but is not limited to, screws, bolts, and the like.

[0064] As attached Figures 10 to 13 As shown, in addition, the present application also provides an electrical box, which is used to be set on the installation side 900, and the installation side 900 is set on one side of the electrical appliance, and includes a fireproof board 100, a first installation hole 200, and a second installation hole 300; the fireproof board 100 is used to be installed on the installation side 900, and the side of the fireproof board 100 facing the installation side 900 is provided with electronic devices; the first installation hole 200 is opened on the installation side 900; the second installation hole 300 is opened on the fireproof board 100; the fastener 400 is made of metal, and the fastener 400 passes through the second installation hole 300 and the first installation hole 200 in sequence, so that the fireproof board 100 is installed on the installation side 900.

[0065] In the prior art, the power of the components in the electrical box is too large and the temperature rise is too high; the ventilation of the electrical box is not sufficient, and the electrical box cannot be cooled, resulting in the electrical box body heating up and catching fire. The flame in the electrical box can easily burn the box cover and jump out of the electrical box body.

[0066] Through the above scheme, the fireproof board 100 is installed on the installation side 900 through the fastener 400. When the components in the electrical box burn, the flame is always in contact with the fireproof board 100. The fireproof board 100 can prevent the flame from escaping, thereby improving the fireproof performance and safety performance of the electrical box.

[0067] In some embodiments, the installation side 900 is provided with an installation cavity, the electronic device is arranged in the installation cavity, and the fireproof board 100 covers the installation cavity. The fireproof board 100 seals the electronic device in the installation cavity.

[0068] In some embodiments, a cover plate 500 is further included. The cover plate 500 is disposed on a side of the fireproof board 100 away from the installation side 900. A hook 501 is disposed on the side of the cover plate 500 facing the installation side 900. A slot 101 is provided on the fireproof board 100. The hook 501 is engaged with the slot 101. A third mounting hole 502 is provided on the cover plate 500. The fastener 400 penetrates the third mounting hole 502. The fireproof board 100 is connected to the cover plate 500 by means of a snap connection, without the use of screws, etc., which can improve the operation efficiency. The fastener 400 sequentially penetrates the third mounting hole 502, the second mounting hole 300, and the first mounting hole 200, so that the cover plate 500 and the fireproof board 100 are installed on the installation side 900, and the installation is simple and convenient.

[0069] In some embodiments, a plurality of hooks 501 are arranged at intervals. The plurality of hooks 501 fix the fireproof board 100 to the cover plate 500 to improve the connection strength.

[0070] In some embodiments, the fastener 400 includes but is not limited to screws, screws, bolts, etc. The fastener 400 is made of high temperature resistant material and has certain fireproof performance.

[0071] In some embodiments, a mounting groove is provided on the side of the cover plate 500 facing the mounting side 900, and a mounting hook is provided on the side of the fireproof board 100 facing the cover plate 500. The mounting hook is snapped into the mounting groove to complete the installation of the fireproof board 100 snapped into the cover plate 500.

[0072] In some embodiments, the fireproof board 100 includes a covering portion 600 and a blocking portion 700. The blocking portion 700 is disposed outside the covering portion 600 and encloses a cavity together with the covering portion 600. The side of the cavity away from the installation side 900 is spaced apart from the side of the cover plate 500 facing the installation side 900. Since the fireproof board 100 and the cover plate 500 are not in contact, when the temperature inside the electrical box is very high, the cover plate 500 will at most be slightly deformed, which will not cause the cover plate 500 to fall off.

[0073] In some embodiments, a connection portion 800 is provided on the outer side of the fireproof board 100 , the connection portion 800 is attached to the installation side 900 , and the second installation hole 300 is opened in the connection portion 800 .

[0074] In some embodiments, the number of the connection parts 800 is at least two, wherein the two connection parts 800 are respectively disposed on two opposite sides of the fireproof board 100 .

[0075] In some embodiments, the outer side of the fireproof board 100 is provided with a flange 110, which is spaced apart from the connecting portion 800 and is attached to the installation side 900. The outer periphery of the fireproof board 100 is provided with a flange 110, which can better isolate the installation cavity and prevent the flame in the installation cavity from escaping the fireproof board 100.

[0076] In some embodiments, the fireproof board 100, the connecting portion 800 and the flange 110 are an integrally formed structure, and the fireproof board 100, the connecting portion 800 and the flange 110 are made of metal material and have certain fireproof performance. The fireproof board 100, the connecting portion 800 and the flange 110 are an integrally formed structure, which is easy to process and saves costs.

[0077] In addition, the present application also provides an air conditioner, which includes an air conditioner indoor unit and an air conditioner outdoor unit. The electrical box can be installed on the air conditioner indoor unit or the air conditioner outdoor unit, or on both the air conditioner indoor unit and the air conditioner outdoor unit.

[0078] Through the above technical solution, the fireproof board 100 is installed on one side of the air conditioner through the fastener 400, which prevents the fireproof board 100 from falling off when the electrical box is burning, prevents the flame from escaping from the electrical box, and improves the fireproof performance of the whole machine.

[0079] In some embodiments, the electrical box includes a box body and a fireproof board 100, the fireproof board 100 is installed at the opening of the box body through a fastener 400 to seal the box body, and the box body is installed in the indoor unit of the air conditioner.

[0080] The box body is made of plastic injection molding, and the protective plate 100 is made of metal material. This scheme can facilitate manufacturing and reduce manufacturing costs on the one hand, and can ensure the structural strength and fireproof performance of the electrical box on the other hand.

[0081] In some embodiments, the indoor unit of the air conditioner includes a body, in which a heat exchange fan and an indoor heat exchanger are disposed, and the heat exchange fan is disposed in the body; the indoor heat exchanger is disposed in the body; under the action of the heat exchange fan, indoor air enters the body through the air inlet of the air conditioner, and is output to the room through the air outlet of the air conditioner after heat exchange through the indoor heat exchanger.

[0082] In some embodiments, the electrical box includes a box body, a fireproof panel 100 and a cover plate 500. The fireproof panel 100 is detachably installed on the cover plate 500. The cover plate 500 and the fireproof panel 100 are installed together at the opening of the box body through fasteners 400, and the box body is installed on the air conditioner outdoor unit.

[0083] In some embodiments, the installation side 900 is disposed on one side of the air conditioner indoor unit, the installation side 900 is provided with an installation cavity, the electronic device is disposed in the installation cavity, and the fireproof panel 100 is installed on the installation side 900 by fasteners 400 .

[0084] As attached Figures 10 to 13 As shown, in some embodiments, the installation side 900 is arranged on one side of the air conditioner outdoor unit, and the installation side 900 is provided with an installation cavity, the electronic device is arranged in the installation cavity, the fireproof panel 100 is snap-connected to the cover plate 500, and the first installation hole 200 is opened on the installation side 900; the second installation hole 300 is opened on the fireproof panel 100, and the third installation hole 502 is opened on the cover plate 500; the fastener 400 passes through the third installation hole 502, the second installation hole 300, and the first installation hole 200 in sequence, and the cover plate 500 and the fireproof panel 100 are installed together on the installation side 900, and the fastener 400 includes but is not limited to high temperature resistant structures such as screws, screws, and bolts.

[0085] When installing the fireproof board 100 , first snap the fireproof board 100 onto the cover board 500 , and then use the fastener 400 to fix the cover board 500 and the fireproof board 100 together to the installation side 900 .

[0086] When the electronic device in the installation cavity burns, the flame generated in the installation cavity first contacts the fireproof plate 100. The fireproof plate 100 in the prior art is only snapped onto the side of the cover plate 500 facing the installation side 900. The melting point of some cover plates 500 is less than 200 degrees, while the flame temperature can be as high as more than 600 degrees when the whole machine burns. The hook 501 on the cover plate 500 that fixes the fireproof plate 100 melts. After the fireproof plate 100 falls off, the flame ignites the cover plate 500, thereby causing serious combustion safety problems of the whole machine.

[0087] In the present application, the metal fastener 400 fixes the cover plate 500 and the fireproof board 100 to the installation side 900 of the whole machine. During combustion, the flame is always in contact with the fireproof board 100. Even if the temperature is as high as 600 degrees, the flame cannot escape from the fireproof board 100. The fireproof board 100 and the cover plate 500 are spaced apart. When the temperature in the installation cavity reaches the highest, the cover plate 500 will at most be slightly deformed, thereby improving the fireproof performance of the air conditioner outdoor unit and improving the safety of use of the air conditioner outdoor unit.

[0088] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An electrical box, characterized in that: It includes: A box body, wherein an electronic device is installed in the box body, a side wall of the box body is an installation side, the interior of the box body is hollow, and the installation side is provided with an opening communicating with the interior of the box body; A fireproof board, which is arranged at the opening of the box body and covers the opening of the box body; a first mounting hole, the first mounting hole being opened on the mounting side; A second mounting hole, the second mounting hole being opened in the fireproof board; The fastener is made of metal and passes through the second mounting hole and the first mounting hole in sequence so that the fireproof board can be installed on the mounting side.

2. The electrical box according to claim 1, characterized in that: It also includes a cover plate, which is arranged on the side of the fireproof plate away from the box body, and a hook is provided on the side of the cover plate facing the box body, a slot is provided on the fireproof plate, the hook is engaged with the slot, a third mounting hole is provided on the cover plate, and the fastener passes through the third mounting hole.

3. The electrical box according to claim 2, characterized in that: The fireproof board includes a covering portion, an enclosure portion and a connecting portion. The enclosure portion is arranged on the outside of the covering portion and together with the covering portion, a cavity is formed. The side of the cavity away from the box body is spaced apart from the side of the cover plate facing the box body. The connecting portion is arranged on the side of the enclosure portion away from the covering portion, and the second mounting hole is opened in the connecting portion.

4. An electrical box, which is used to be arranged on the installation side, characterized in that: It includes: A fireproof board, the fireproof board is used to be installed on the installation side, and an electronic device is provided on a side of the fireproof board facing the installation side; a first mounting hole, the first mounting hole being opened on the mounting side; A second mounting hole, the second mounting hole being opened in the fireproof board; The fastener is made of metal and passes through the second mounting hole and the first mounting hole in sequence so that the fireproof board can be installed on the mounting side.

5. The electrical box according to claim 4, characterized in that: The installation side is provided with an installation cavity, the electronic device is arranged in the installation cavity, and the fireproof board covers the installation cavity.

6. The electrical box according to claim 5, characterized in that: A connecting portion is provided on the outer side of the fireproof board, and the connecting portion is used to fit the installation side, and the second installation hole is opened in the connecting portion.

7. The electrical box according to claim 6, characterized in that: The number of the connecting parts is at least two, wherein the two connecting parts are respectively arranged on two opposite sides of the fireproof board.

8. The electrical box according to claim 7, characterized in that: The outer side of the fireproof board is provided with a flange, the flange is spaced apart from the connecting portion, and the flange is used to fit the installation side.

9. The electrical box according to claim 8, characterized in that: The fireproof board, the connecting part and the flange are an integrally formed structure, and the fireproof board, the connecting part and the flange are made of metal.

10. An air conditioner, characterized in that: The air conditioner comprises an air conditioner indoor unit and an air conditioner outdoor unit, and the air conditioner indoor unit and / or the air conditioner outdoor unit are provided with the electrical appliance box as claimed in claim 1 or 4.

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