Electrical box and air conditioner having the same

Abstract

The present invention provides an electrical box and an air conditioner having the same, wherein the electrical box comprises: an electrical box body, the electrical box body comprises a first side wall and a second side wall arranged opposite to each other, the electrical box body has a mounting cavity; along the distribution direction of the first side wall and the second side wall, the mounting cavity has a first mounting portion and a second mounting portion; a main board, a wiring board and a wire fixing clamp assembly, the main board is mounted on the first mounting portion, and the wiring board and the wire fixing clamp assembly are both mounted on the second mounting portion. The present invention solves the problem of a large number of parts of the electrical box in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an electrical appliance box and an air conditioner having the same. Background Art

[0002] At present, the wiring board of the electrical box components of vertical cabinets is mostly placed behind the electrical box. The wiring board needs to be closed with a wiring board cover separately, and the electrical box also needs a separate support for support.

[0003] Therefore, the number of parts of the electrical box in the prior art is large, the assembly efficiency is low, and the production cost is high. Summary of the invention

[0004] The main purpose of the present invention is to provide an electrical appliance box and an air conditioner having the same, so as to solve the problem that the number of parts of the electrical appliance box in the prior art is large.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided an electrical box, comprising: an electrical box body, the electrical box body comprising a first side wall and a second side wall arranged opposite to each other, the electrical box body having an installation cavity; along the distribution direction of the first side wall and the second side wall, the installation cavity has a first installation portion and a second installation portion; a main board, a terminal block and a wire fixing clamp assembly, the main board is installed on the first installation portion, and the terminal block and the wire fixing clamp assembly are both installed on the second installation portion.

[0006] Furthermore, the electrical box body comprises a first fixing portion and a first side wall and a second side wall of the box body having an opening are both provided with the first fixing portion, and the first fixing portion is provided at an end of the box body away from one end of the opening.

[0007] Furthermore, the box body has a bottom plate at one end away from the opening, and part of the bottom plate protrudes toward the outside of the installation cavity to form a first fixing portion; a first protrusion is provided on the bottom plate, and the first protrusion extends from the main body of the bottom plate to the first fixing portion.

[0008] Furthermore, the distribution direction of the terminal block and the wire clamp assembly is perpendicular to the distribution direction of the first side wall and the second side wall; the electrical box body includes a bottom plate body and a side plate body, and the bottom plate body and the side plate body are connected to form an installation cavity; an opening connected to the installation cavity is formed at one end of the side plate body away from the bottom plate body; a plurality of first wiring openings are provided on the side plate body, and the plurality of first wiring openings are provided on the side of the wire clamp assembly away from the terminal block; the first wiring openings extend from the opening toward the bottom plate body.

[0009] Furthermore, the side panel body includes a first side panel portion and a second side panel portion which are arranged opposite to each other, and a plurality of first wiring openings are arranged on the first side panel portion; a reserved space for placing wires and / or magnetic rings is provided between the side edge of the main board away from the first wiring opening and the second side panel portion.

[0010] Furthermore, a recessed portion is provided on an end wall of the electrical appliance box body at one end away from the opening of the electrical appliance box body, and the recessed portion is recessed from the outer end surface of the electrical appliance box body toward the installation cavity.

[0011] Furthermore, there are a plurality of recessed portions, and the plurality of recessed portions are arranged at intervals along a distribution direction of the first side wall and the second side wall.

[0012] Furthermore, the electrical box body includes a box body and a box cover, which are detachably connected to form an installation cavity; a second protrusion is provided on the wall surface of the box cover away from the box body, and the second protrusion protrudes from the inner wall surface of the box cover toward a direction away from the installation cavity.

[0013] Furthermore, the electrical box also includes: a fireproof component, the fireproof component has a connecting plate connected to the electrical box body and a shielding plate for shielding the first wiring opening of the electrical box body, the connecting plate and the shielding plate are arranged at a predetermined angle; and / or a mainboard fixing plate, the mainboard fixing plate is installed on the inner wall of the electrical box body, and the mainboard is installed on the mainboard fixing plate.

[0014] According to another aspect of the present invention, an air conditioner is provided, including an air inlet panel. The air conditioner further includes an electrical appliance box installed on the air inlet panel.

[0015] Applying the technical solution of the present invention, the electrical box of the present invention includes an electrical box body, a main board, a wiring board and a wire clamp assembly. The first side wall and the second side wall of the electrical box body are both provided with a first fixing portion for connecting with the air inlet panel, and the electrical box body has a mounting cavity; along the distribution direction of the first side wall and the second side wall, the mounting cavity has a first mounting portion and a second mounting portion; the main board is mounted on the first mounting portion, and the wiring board and the wire clamp assembly are both mounted on the second mounting portion. The wiring board and the wire clamp assembly of the present application are installed in the mounting cavity of the electrical box body, eliminating the use of the wiring box cover, reducing the number of parts, and also shortening the length of the main board power line routing, saving costs. Moreover, the wiring board and the wire clamp assembly are installed in the mounting cavity of the electrical box body to effectively distinguish the main board power line from the external motor connection line to improve the EMC performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 An exploded view of an embodiment of an electrical box according to the present invention is shown;

[0018] Figure 2 A front structural schematic diagram showing a main board, a wiring board and a wire clamp assembly according to an embodiment of an electrical box of the present invention installed in a box body;

[0019] Figure 3 A schematic diagram showing the back structure of a box body according to an embodiment of an electrical appliance box of the present invention is shown;

[0020] Figure 4 A schematic diagram showing the overall structure of a box body according to an embodiment of an electrical appliance box of the present invention is shown;

[0021] Figure 5 A schematic diagram showing the overall structure of a box cover according to an embodiment of an electrical appliance box of the present invention is shown;

[0022] Figure 6 A schematic diagram showing an embodiment of an air conditioner according to the present invention where an electrical box is installed on an air inlet panel;

[0023] Figure 7 A schematic structural diagram showing a first viewing angle of a wire clamp assembly of an electrical box according to the present invention;

[0024] Figure 8 A structural schematic diagram of the wire clamp assembly of the electrical appliance box according to the present invention is shown from a second viewing angle.

[0025] The above drawings include the following reference numerals:

[0026] 1. Electrical box; 2. Air inlet panel; 10. Electrical box body; 12. Box body; 11. First fixing part; 13. Box cover; 14. Second fixing part; 15. Third fixing part; 100. Mounting cavity; 101. First mounting part; 102. Second mounting part; 111. First side wall; 112. Second side wall; 20. Main board; 30. Terminal block; 40. Wire clamp assembly; 41. Wire clamp main board; 401. First through hole; 402. Second through hole; 403. Third through hole; 42. Fixed coil; 420. Soft rib; 421. Snap-on protrusion; 43. Anti-slip protrusion; 44. Buckle structure ; 45. Connecting part; 46. Wire fixing cover plate; 460. Plug-in part; 47. Wire fixing protrusion; 470. Connecting cavity; 103. Opening; 120. Bottom plate; 121. First protrusion; 122. Main body; 130. Side plate; 133. First wiring port; 1330. Inlet port; 1331. Outlet port; 131. First side plate; 132. Second side plate; 200. Reserved space; 104. Recessed part; 134. Second protrusion; 50. Fireproof component; 51. Connecting plate; 52. Shielding plate; 53. Shielding side plate; 210. Mainboard fixing plate; 135. Third protrusion. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] Please refer to Figures 1 to 5 , Figure 7 and Figure 8 The present invention provides an electrical box, comprising: an electrical box body 10, the electrical box body 10 comprising a first side wall 111 and a second side wall 112 arranged opposite to each other, the electrical box body 10 having an installation cavity 100; along the distribution direction of the first side wall 111 and the second side wall 112, the installation cavity 100 has a first installation portion 101 and a second installation portion 102; a main board 20, a wiring board 30 and a wire fixing clamp assembly 40, the main board 20 is installed on the first installation portion 101, and the wiring board 30 and the wire fixing clamp assembly 40 are both installed on the second installation portion 102.

[0029] The electrical box of the present invention comprises an electrical box body 10, a main board 20, a wiring board 30 and a wire clamp assembly 40. The electrical box body 10 comprises a first side wall 111 and a second side wall 112 arranged opposite to each other. The electrical box body 10 has an installation cavity 100. Along the distribution direction of the first side wall 111 and the second side wall 112, the installation cavity 100 has a first installation portion 101 and a second installation portion 102. The main board 20 is installed on the first installation portion 101, and the wiring board 30 and the wire clamp assembly 40 are both installed on the second installation portion 102. The wiring board 30 and the wire clamp assembly 40 of the present application are installed in the installation cavity 100 of the electrical box body 10, eliminating the use of the wiring box cover, reducing the number of parts, and also shortening the length of the mainboard power line, saving costs. Moreover, the wiring board 30 and the wire clamp assembly 40 are installed in the installation cavity 100 of the electrical box body 10, which can effectively distinguish the mainboard power line from the external motor connection line to improve the EMC performance.

[0030] Specifically, Figure 7 and Figure 8 As shown, the wire clamp assembly 40 includes: a wire clamp main board 41, on which an anti-skid protrusion 43 is arranged to prevent the wire from sliding through the anti-skid protrusion 43, and a fixed coil 42 is also arranged on the wire clamp main board 41. There are multiple fixed coils 42, and the multiple fixed coils 42 are arranged at intervals on the wire clamp main board 41 and are located on the wall surface of the wire clamp main board 41 on the side away from the inner wall surface of the electrical box. The inner side of the fixed coil 42 for contacting the wire is provided with a soft rib 420, and there are multiple soft ribs 420, so that the assembly gap between the fixed coil 42 and the wire is reduced by densely arranging multiple soft ribs, and it has the effect of preventing insects and rodents, and the outer side of the fixed coil 42 is provided with a clamping protrusion 421, so that it can be clamped with the inner wall surface of the electrical box through the clamping protrusion 421 for pre-installation.

[0031] Specifically, the wire fixing clamp assembly 40 also includes a plurality of snap structures 44, and the plurality of snap structures 44 are all arranged on the wall surface of the wire fixing clamp main board 41 close to the inner wall surface of the electrical box. The wire fixing clamp assembly 40 is pre-installed with the inner wall surface of the electrical box through the plurality of snap structures 44.

[0032] Specifically, the wire fixing clamp assembly 40 also includes a connecting portion 45 and a wire fixing cover plate 46, the connecting portion 45 connects the wire fixing cover plate 46 and the wire fixing clamp main board 41, the connecting portion 45 is a flexible structure, so that the connecting portion 45 can be bent so that the wire fixing cover plate 46 and the wall surface where the anti-slip protrusion 43 is located form a wire fixing cavity; a second through hole 402 and a third through hole 403 are provided on the connecting portion 45, so that after the connecting portion 45 is bent so that the wire fixing cover plate 46 and the wall surface where the anti-slip protrusion 43 is located form a wire fixing cavity, the third through hole 403 and the second through hole 402 are correspondingly arranged, and the wire fixing clamp assembly 40 is installed on the inner wall surface of the electrical box by a second fastener penetrated through a plurality of second through holes 402.

[0033] Specifically, a wire fixing protrusion 47 is provided on the wire fixing clamp main board 41, and the wire fixing protrusion 47 has a connecting cavity 470 for the wire to pass through. The wire fixing cover plate 46 is provided with a plug-in portion 460 along the side of the connecting portion 45 away from the wire fixing clamp main board 41, so that after the wire fixing cavity is formed between the bent connecting portion 45 and the wall surface where the anti-slip protrusion 43 is located, the plug-in portion 460 is inserted into the connecting cavity 470 and fixed by clamping, so that a wire fixing cavity is formed between the bent connecting portion 45 and the wall surface where the anti-slip protrusion 43 is located.

[0034] Specifically, a first through hole 401 is provided on the wire clamp main board 41 of the wire clamp assembly 40 , so that the wire clamp assembly 40 can be installed on the inner wall surface of the electrical box by a first fastener penetrating through the first through hole 401 .

[0035] Specifically, the electrical box body 10 includes a first fixing portion 11 and a box body 12 with an opening 103. The first fixing portion 11 is provided on the first side wall 111 and the second side wall 112. The first fixing portion 11 is provided on the end of the box body 12 away from the opening 103, so that the electrical box is stably connected to the air inlet panel 2 through the first fixing portion 11. The present application provides a first fixing portion 11 for connecting to the air inlet panel 2 on the first side wall 111 and the second side wall 112 of the electrical box body 10. In this way, there is no need to use an additional support plate to support and connect the electrical box and the air inlet panel 2, which further reduces the number of parts, improves assembly efficiency, and saves costs.

[0036] Specifically, the end of the box body 12 away from the opening 103 has a bottom plate body 120, and part of the bottom plate body 120 protrudes toward the outside of the installation cavity 100 to form a first fixing portion 11; a first protrusion 121 is provided on the bottom plate body 120, and the first protrusion 121 extends from the main body 122 of the bottom plate body 120 to the first fixing portion 11. The first protrusion 121 can reduce the gap at the bending point between the box body 12 and the first fixing portion 11 to play an insect-proof role.

[0037] Specifically, the distribution direction of the terminal block 30 and the wire clamp assembly 40 is perpendicular to the distribution direction of the first side wall 111 and the second side wall 112; the electrical box body 10 includes a bottom plate body 120 and a side plate body 130, and the bottom plate body 120 and the side plate body 130 are connected to enclose an installation cavity 100; an end of the side plate body 130 away from the bottom plate body 120 forms an opening 103 connected to the installation cavity 100; a plurality of first wiring openings 133 are arranged on the side plate body 130, and the plurality of first wiring openings 133 are arranged on a side of the wire clamp assembly 40 away from the terminal block 30; the first wiring openings 133 extend from the opening 103 toward the bottom plate body 120.

[0038] like Figure 4 As shown, the first wiring port 133 includes an inlet 1330 and an outlet 1331. The electrical wires of the entire machine enter the electrical box body 10 through the inlet 1330. The power cord of the air conditioner and the outdoor unit connection line of the air conditioner are connected to the terminal board 30. The power cord and the outdoor unit connection line are respectively fixed by the wire clamp assembly 40, and then the wires are output through the outlet 1331.

[0039] In an embodiment of the present invention, the fan line enters the installation cavity 100 of the electrical box through the line inlet 1330 and is connected to the mainboard 20. The signal line and the mainboard power line are installed in the installation cavity 100 and connected to the wiring board 30 by the mainboard 20. Then, after the mainboard power line and the signal line are connected to the wire clamp assembly 40, they are connected to the air conditioner outdoor unit through the line outlet 1331. In this way, the mainboard power line and the fan line of the present invention do not interfere with each other, and the fan line will not interfere with the EMC conduction test of the mainboard power line, solving the problem of insufficient EMC margin of the air conditioner in the prior art. Specifically, the first wiring port 133 reduces the assembly gap by assembling the diameter of the wire with the cover of the electrical box body 10, thereby achieving the function of insect prevention.

[0040] Specifically, the side panel body 130 includes a first side panel portion 131 and a second side panel portion 132 that are arranged opposite to each other, and a plurality of first wiring openings 133 are all arranged on the first side panel portion 131; a reserved space 200 for placing wires and / or magnetic rings is provided between the side edge of the main board 20 away from the first wiring opening 133 and the second side panel portion 132, so that the electrical components can be concentrated in the electrical box, which is beneficial to electrical safety and improves the space utilization of the electrical box.

[0041] like Figure 3 As shown, a recessed portion 104 is provided on the end wall of the electrical box body 10 away from the opening 103 of the electrical box body 10 , and the recessed portion 104 is recessed from the outer end surface of the electrical box body 10 toward the installation cavity 100 .

[0042] Specifically, there are multiple recessed portions 104, and the multiple recessed portions 104 are arranged at intervals along the distribution direction of the first side wall 111 and the second side wall 112. The recessed portions 104 can prevent the fixing screw head from cutting the wire during transportation of the electrical box.

[0043] In an embodiment of the present invention, there are two recessed portions 104, which are arranged at an interval, and the terminal block 30 extends from one recessed portion 104 toward the other recessed portion 104 to prevent the fixing screw heads at both ends of the terminal block 30 along its extension direction from cutting the wires during transportation.

[0044] Specifically, the electrical box body 10 includes a box body 12 and a box cover 13, which are detachably connected to form an installation cavity 100. A second protrusion 134 is provided on the wall surface of the box cover 13 on the side away from the box body 12, and the second protrusion 134 protrudes from the inner wall surface of the box cover 13 toward a direction away from the installation cavity 100 to increase the distance between the box cover 13 of the electrical box and the wiring terminals to prevent the wiring terminals from being pressed, thereby improving electrical safety.

[0045] Preferably, the bottom plate body 120 of the box body 12 is provided with a third protrusion 135, and the third protrusion 135 protrudes in a direction away from the installation cavity 100, so that the third protrusion 135 cooperates with the second protrusion 134 to increase the distance between the box cover 13 of the electrical box and the terminal, prevent the terminal from being pressed, and improve electrical safety.

[0046] Specifically, the box body 12 includes a second fixing portion 14, which is arranged on the first side wall 111 and the second side wall 112, and the box cover 13 includes a third fixing portion 15. The box body 12 and the box cover 13 are connected by fasteners penetrated through the second fixing portion 14 and the third fixing portion 15, wherein the fasteners are screws.

[0047] Specifically, the first side wall 111 and the second side wall 112 each include two first fixing portions 11 and one second fixing portion 14, the second fixing portion 14 is located between the two first fixing portions 11, and the first fixing portion 11 and the second fixing portion 14 are respectively located on two sides of the first side wall 111 or the second side wall 112 along the width direction thereof. In an embodiment of the present application, the electrical box further includes: a fireproof component 50, the fireproof component 50 having a connecting plate 51 connected to the electrical box body 10 and a shielding plate 52 for shielding the first wiring opening 133 of the electrical box body 10, the connecting plate 51 and the shielding plate 52 being arranged at a predetermined angle; and / or a mainboard fixing plate 210, the mainboard fixing plate 210 being mounted on the inner wall of the electrical box body 10, and the mainboard 20 being mounted on the mainboard fixing plate 210.

[0048] Specifically, the fireproof component 50 also includes a shielding side panel 53, which is connected to the connecting plate 51 and the shielding plate 52 and is arranged at a preset angle. The shielding side panel 53, the connecting plate 51 and the shielding plate 52 cooperate with each other to prevent sparks from the electrical components in the electrical box from falling onto the entire machine, thereby improving the safety of the entire machine.

[0049] Specifically, the shielding side plates 53 , the connecting plates 51 and the shielding plates 52 are all arranged perpendicular to each other.

[0050] In the specific assembly process of the embodiment of the present invention, the mainboard fixing plate 210 is first inserted into the box body 12 of the electrical box 1, and then the mainboard 20 is fixed to the mainboard fixing plate 210 by the mutual cooperation of the buckle and the positioning groove, and then the wiring board 30 is assembled into the inside of the box body 12 and fixed through the reserved screw holes. The wire clamp assembly 40 is also fixed to the box body 12 through the reserved screw holes; the outside of the box body 12 is provided with a first fixing portion 11 fixed to the air inlet panel 2, and the box is fixed by the positioning columns and / or screws provided on the first fixing portion 11 and the air inlet panel. The main body 12 is installed on the air inlet panel 2; after the box main body 12 is pre-installed on the air inlet panel 2, the electrical wires of the whole machine enter the box main body 12 through the wire inlet 1330, the power cord and the external machine connection line are connected to the terminal board 30, and the power cord and the external machine connection line are respectively fixed by the wire clamp assembly 40, and then the wires are discharged through the wire outlet 1331; the third fixing portion 15 of the box cover 13 cooperates with the second fixing portion 14 of the box main body 12 to connect the box main body 12 and the box cover 13 through fasteners penetrated on the third fixing portion 15 and the second fixing portion 14, wherein the fasteners are screws.

[0051] Please refer to Figure 6 The present invention further provides an air conditioner, including an air inlet panel 2 , and the air conditioner further includes: the above-mentioned electrical box, wherein the electrical box 1 is installed on the air inlet panel 2 .

[0052] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0053] The electrical box of the present invention comprises an electrical box body 10, a main board 20, a wiring board 30 and a wire clamp assembly 40. The electrical box body 10 comprises a first side wall 111 and a second side wall 112 arranged opposite to each other. The electrical box body 10 has an installation cavity 100. Along the distribution direction of the first side wall 111 and the second side wall 112, the installation cavity 100 has a first installation portion 101 and a second installation portion 102. The main board 20 is installed on the first installation portion 101, and the wiring board 30 and the wire clamp assembly 40 are both installed on the second installation portion 102. The wiring board 30 and the wire clamp assembly 40 of the present application are installed in the installation cavity 100 of the electrical box body 10, eliminating the use of the wiring box cover, reducing the number of parts, and also shortening the length of the mainboard power line, saving costs. Moreover, the wiring board 30 and the wire clamp assembly 40 are installed in the installation cavity 100 of the electrical box body 10, which can effectively distinguish the mainboard power line from the external motor connection line to improve the EMC performance.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrical box, characterized in that: include: An electrical box body (10), the electrical box body (10) comprising a first side wall (111) and a second side wall (112) arranged opposite to each other, the electrical box body (10) having an installation cavity (100); along the distribution direction of the first side wall (111) and the second side wall (112), the installation cavity (100) has a first installation portion (101) and a second installation portion (102); A main board (20), a wiring board (30) and a wire clamp assembly (40), wherein the main board (20) is mounted on the first mounting portion (101), and the wiring board (30) and the wire clamp assembly (40) are both mounted on the second mounting portion (102); A recessed portion (104) is provided on an end wall of the electrical box body (10) at one end away from the opening (103) of the electrical box body (10), and the recessed portion (104) is recessed from the outer end surface of the electrical box body (10) toward the installation cavity (100); There are a plurality of recessed portions (104), and the plurality of recessed portions (104) are arranged at intervals along the distribution direction of the first side wall (111) and the second side wall (112); The terminal block (30) extends from one recessed portion (104) toward another recessed portion (104) to prevent the fixing screw heads at both ends of the terminal block (30) along its extension direction from cutting the wires during transportation.

2. The electrical box according to claim 1, characterized in that: The electrical box body (10) comprises a first fixing portion (11) and a box body (12) having an opening (103); the first fixing portion (11) is provided on both the first side wall (111) and the second side wall (112); the first fixing portion (11) is provided at an end of the box body (12) away from the opening (103).

3. The electrical box according to claim 2, characterized in that: The box body (12) has a bottom plate (120) at one end away from the opening (103), and a portion of the bottom plate (120) protrudes toward the outside of the installation cavity (100) to form the first fixing portion (11); The bottom plate body (120) is provided with a first protruding portion (121), and the first protruding portion (121) extends from a main body portion (122) of the bottom plate body (120) to the first fixing portion (11).

4. The electrical box according to claim 1, characterized in that: The distribution direction of the wiring board (30) and the wire clamp assembly (40) is perpendicular to the distribution direction of the first side wall (111) and the second side wall (112); The electrical box body (10) comprises a bottom plate (120) and a side plate (130), wherein the bottom plate (120) and the side plate (130) are connected to enclose the installation cavity (100); an end of the side plate (130) away from the bottom plate (120) forms an opening (103) in communication with the installation cavity (100); a plurality of first wiring openings (133) are provided on the side plate (130), and the plurality of first wiring openings (133) are provided on a side of the wiring clamp assembly (40) away from the wiring board (30); The first wiring opening (133) extends from the opening (103) toward the bottom plate (120).

5. The electrical box according to claim 4, characterized in that: The side plate body (130) comprises a first side plate portion (131) and a second side plate portion (132) which are arranged opposite to each other, and the plurality of first wiring openings (133) are all arranged on the first side plate portion (131); a reserved space (200) for placing a wire and / or a magnetic ring is provided between a side edge of the main plate (20) away from the first wiring opening (133) and the second side plate portion (132).

6. The electrical box according to claim 1, characterized in that: The electrical box body (10) comprises a box body (12) and a box cover (13), wherein the box body (12) and the box cover (13) are detachably connected, and the box body (12) and the box cover (13) enclose the installation cavity (100); a second protrusion (134) is provided on the wall surface of the box cover (13) on a side away from the box body (12), and the second protrusion (134) protrudes from the inner wall surface of the box cover (13) in a direction away from the installation cavity (100).

7. The electrical box according to any one of claims 1 to 6, characterized in that: The electrical box also includes: a fireproof component (50), the fireproof component (50) comprising a connecting plate (51) connected to the electrical box body (10) and a shielding plate (52) for shielding a first wiring opening (133) of the electrical box body (10), the connecting plate (51) and the shielding plate (52) being arranged at a predetermined angle; and / or A mainboard fixing plate (210), wherein the mainboard fixing plate (210) is mounted on the inner wall of the electrical box body (10), and the mainboard (20) is mounted on the mainboard fixing plate (210).

8. An air conditioner, comprising an air inlet panel (2), characterized in that: The air conditioner further comprises: an electrical appliance box according to any one of claims 1 to 7, wherein the electrical appliance box is mounted on the air inlet panel (2).

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