CN212367718U

CN212367718U - Electrical apparatus box, indoor set and air conditioner

Info

Publication number: CN212367718U
Application number: CN202021463647.5U
Authority: CN
Inventors: 刘禾铭; 林裕亮; 周永志; 王美; 黄建彬; 洪奔奔
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-01-15
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses an electrical apparatus box, indoor set and air conditioner relates to air conditioner technical field, has solved the relatively poor technical problem of electrical apparatus box fire behavior among the prior art. The utility model discloses an electrical apparatus box includes box body, lid, box body fixed plate and PCB fixed plate, wherein, box body and box body fixed plate fixed connection, PCB fixed plate are located the box body to be provided with step-like structure on the lid, when the lid fits the box body top, form fire resistive construction between step-like structure and box body, box body fixed plate and/or the PCB fixed plate. The utility model discloses an electrical apparatus box, when the mainboard is fired because of the fact, can prevent that the flame from scurrying out through the fireproof structure that forms between step-like structure and box body, box body fixed plate and/or PCB fixed plate, play the fire prevention effect; on the other hand, the lid fits the box body top for form seal structure between lid and the box body, can further prevent that the flame from scurrying out, play the fire prevention effect.

Description

Electrical apparatus box, indoor set and air conditioner

Technical Field

The utility model relates to an air conditioning technology field especially relates to an electric appliance box, use this electric appliance box's indoor set and contain the air conditioner of this indoor set.

Background

In the prior art, an electrical box of a vertical air conditioner is generally arranged at the top of a cabinet air conditioner, and is inconvenient for after-sale workers to disassemble, install, maintain a main board, connect a patch cord and the like due to high position; in addition, because the electrical box is arranged at the top of the cabinet air conditioner, the connecting line is required to connect the main board in the electrical box with the electric parts through the air duct, the air outlet or the evaporator, the wiring is messy and not attractive, and potential safety hazards also exist.

The patent with publication number CN105910242A discloses an electric appliance box, an indoor unit and an air conditioner, wherein a wire passing port is arranged on a box body of the electric appliance box, and a wire passing coil is arranged in the wire passing port, so that a box cover of the electric appliance box is convenient to disassemble during maintenance, the wire passing coil cannot fall off, and the hidden danger of wire cutting is eliminated; the box body and the box cover are connected through the buckle assembly, so that the use of screws can be reduced, and the disassembly difficulty and the cost are reduced.

However, the applicant has found that the electrical box disclosed in this patent has at least the following drawbacks: the safety performance is poor, and when the main board is burnt due to reasons, the hidden danger that flame escapes from the wire passing outlet exists; the number of used buckles is large, gaps and gaps are large, and hidden danger of entry of insects and mice is caused; the PCB is generally close to the inside, and the taking needs to be aligned, which is relatively troublesome. In addition, the applicant finds that the electric appliance box in the prior art has the problem of low assembly efficiency.

Therefore, the improvement of the existing electrical box to improve the fireproof and insect-proof performance and the assembly efficiency of the electrical box becomes a technical problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an one of them purpose is to provide an electrical apparatus box, indoor set and air conditioner, has solved the relatively poor technical problem of electrical apparatus box fire behavior among the prior art. The technical effects that the preferred technical scheme of the utility model can produce are explained in detail in the following.

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

the utility model discloses an electrical box, including box body, lid, box body fixed plate and PCB fixed plate, wherein, the box body with box body fixed plate fixed connection, the PCB fixed plate is located in the box body, and be provided with step-like structure on the lid, the lid fits during the box body top, step-like structure with the box body fixed plate and/or form fire resistive construction between the PCB fixed plate.

According to a preferred embodiment, the step-like structure comprises a first step-like structure, the end of the box fixing plate is provided as a box-like structure, the box-like structure is located in front of the outlet, and the first step-like structure is matched with the box-like structure, so that a first fireproof structure is formed between the first step-like structure and the box-like structure.

According to a preferred embodiment, the step-shaped structure includes a second step-shaped structure, a slot structure is formed between the side surface of the box body and the side surface of the PCB fixing plate, and the second step-shaped structure is clamped in the slot structure, so that a second fireproof structure is formed among the second step-shaped structure, the side surface of the box body and the side surface of the PCB fixing plate.

According to a preferred embodiment, the box-shaped structure comprises a first plate body, a second plate body and a third plate body, wherein the first plate body and the third plate body are positioned at two sides of the second plate body and extend towards opposite directions, and the third plate body is attached to the side wall of the box body and fixedly connected with the box body; a gap is kept between the first plate body and the side wall of the box body, so that a wire passing channel is formed between the first plate body and the side wall of the box body.

According to a preferred embodiment, the first plate body is provided with a first guide portion, the first guide portion is inclined toward the direction of the wire passage, and the first stepped structure is fitted over the box-shaped structure via the first guide portion.

According to a preferred embodiment, the PCB fixing plate is connected with the box body through a first buckle assembly, wherein the first buckle assembly comprises a first buckle positioned on a side wall of the PCB fixing plate and a first clamping groove positioned on a side wall of the box body.

According to a preferred embodiment, the upper edge of the PCB fixing plate is lower than the upper edge of the case.

According to a preferred embodiment, the PCB fixing plate is provided with a relief portion, the case is provided with a second guide portion, and the second guide portion is an inclined surface structure inclined toward the inside of the case.

According to a preferred embodiment, the box cover is fixedly connected to the box body, the box body fixing plate and the PCB fixing plate by a first screw assembly, a second screw assembly and a third screw assembly, respectively.

According to a preferred embodiment, the outlet is disposed on the PCB fixing plate, and the bottom of the outlet is lower than the main board in the PCB fixing plate.

According to a preferred embodiment, the electrical box further comprises a wire passing groove, the wire passing groove is arranged at a wire outlet on the PCB fixing plate, and the wire passing groove is connected with the PCB fixing plate through a second buckle assembly.

According to a preferred embodiment, the second buckle assembly comprises second buckles located on two sides of the wire passing groove and mounting holes located on two sides of a wire outlet on the PCB fixing plate, and the wire passing groove is fixed at the wire outlet on the PCB fixing plate by the second buckles clamped in the mounting holes.

According to a preferred embodiment, the PCB fixing plate is further provided with a rib structure, the rib structure comprises a first rib and a second rib, wherein the first rib is located on two sides of the outlet, and the second rib is located on two sides of the second buckle assembly.

According to a preferred embodiment, the PCB fixing plate is further provided with a rib assembly, the rib assembly is arranged on one side of the PCB fixing plate close to the box body, and the height of the rib assembly protruding out of the PCB fixing plate is greater than the height of the second buckle protruding out of the PCB fixing plate.

According to a preferred embodiment, a first guide plate and a second guide plate are respectively arranged on two sides of the opening of the wire passing groove, a gap is formed between the first guide plate and the second guide plate to form a wire passing channel, and inclined surfaces of the first guide plate and the second guide plate are oppositely arranged.

According to a preferred embodiment, a plurality of first clamping plates and second clamping plates are respectively arranged on two sides of the wire passing groove, and gaps are formed between the ends of the first clamping plates and the ends of the second clamping plates to form wire passing channels.

The utility model discloses an indoor unit, include the utility model discloses an arbitrary technical scheme electrical apparatus box.

The utility model discloses an air conditioner, include the utility model discloses an arbitrary technical scheme indoor set.

The utility model provides an electrical apparatus box, indoor set and air conditioner have following beneficial technological effect at least:

the utility model discloses an electrical box, including box body, lid, box body fixed plate and PCB fixed plate, wherein, box body and box body fixed plate fixed connection, the PCB fixed plate is located the box body to be provided with step-like structure on the lid, when lid fits above the box body, form fire prevention isolation structure between step-like structure and box body, box body fixed plate and/or the PCB fixed plate, when the mainboard is fired because of the fact, can prevent that the flame from scurrying out through the fire prevention isolation structure that forms between step-like structure and box body, box body fixed plate and/or the PCB fixed plate, play the fire prevention effect; on the other hand, the lid fits the box body top for form seal structure between lid and the box body, can further prevent that the flame from scurrying out, play the fire prevention effect. And simultaneously, use the utility model discloses the indoor set of electrical apparatus box and the air conditioner that contains this indoor set also have good fire behavior, and electrical safety promotes.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of the electrical box of the present invention;

fig. 2 is a first schematic view of the assembled electrical box of the present invention;

fig. 3 is a second schematic view of the assembled electrical box of the present invention;

fig. 4 is a first schematic view of the PCB fixing plate and the wire passing groove of the present invention after being assembled;

fig. 5 is a second schematic view of the PCB fixing plate and the wire passing groove of the present invention after being assembled;

fig. 6 is a third schematic view of the assembled electrical box of the present invention;

fig. 7 is a schematic view of the electric appliance box of the present invention before the box body and the box cover are assembled;

fig. 8 is a fourth schematic diagram of the assembled electrical box of the present invention.

In the figure: 10. a box body; 101. a first card slot; 102. a second guide portion; 20. a box cover; 201. a first stepped structure; 2011. a first-stage step surface; 2012. a second level step surface; 2013. a connecting surface; 202. a second step-like structure; 203. a first screw assembly; 204. a second screw assembly; 205. a third screw assembly; 30. a box body fixing plate; 301. a first plate body; 3011. a first guide portion; 302. a second plate body; 303. a third plate body; 304. a fixed part; 40. a PCB fixing plate; 401. a first buckle; 402. a relief portion; 403. mounting holes; 404. a first flange; 405. a second flange; 406. a first tendon assembly; 407. a second tendon assembly; 50. a wire passing groove; 501. a second buckle; 502. a first guide plate; 503. a second guide plate; 504. a first clamping plate; 505. a second clamping plate; 60. a main board; 70. an electrical component; 80. a wiring component; 90. a junction box cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The electrical box, the indoor unit, and the air conditioner of the present invention will be described in detail with reference to fig. 1 to 8 and embodiments 1 to 5 of the specification.

Example 1

This embodiment is right the utility model discloses an electrical apparatus box carries out the detailed description.

The electrical box of the present embodiment includes a box body 10, a box cover 20, a box body fixing plate 30 and a PCB fixing plate 40, as shown in fig. 1. Preferably, the box body 10 is fixedly connected with the box body fixing plate 30, the PCB fixing plate 40 is located in the box body 10, the box cover 20 is provided with a step-shaped structure, and when the box cover 20 covers the box body 10, a fireproof structure is formed between the step-shaped structure and the box body 10, the box body fixing plate 30 and/or the PCB fixing plate 40.

According to a preferred embodiment, the electrical box of the present embodiment further includes a main board 60, an electrical component 70, a junction element 80, and a junction box cover 90, as shown in fig. 1. In which the main board 60 and the electric components 70 are fixed to the PCB fixing plate 40, as shown in fig. 2. The splice component 80 and the splice closure 90 are secured to the underside of the box body 10 with the splice component 80 positioned within the splice closure 90, as shown in figure 3.

The electrical box of the embodiment comprises a box body 10, a box cover 20, a box body fixing plate 30 and a PCB fixing plate 40, wherein the box body 10 is fixedly connected with the box body fixing plate 30, the PCB fixing plate 40 is positioned in the box body 10, the box cover 20 is provided with a step-shaped structure, when the box cover 20 covers the box body 10, a fireproof structure is formed among the step-shaped structure and the box body 10, the box body fixing plate 30 and/or the PCB fixing plate 40, and when a main board 60 is burnt due to reasons, the fireproof structure formed among the step-shaped structure and the box body 10, the box body fixing plate 30 and/or the PCB fixing plate 40 can prevent flame from escaping, so that a fireproof effect; on the other hand, the box cover 20 covers the box body 10, so that a sealing structure is formed between the box cover 20 and the box body 10, flame can be further prevented from escaping, and a fireproof effect is achieved.

According to a preferred embodiment, the step-like structure includes a first step-like structure 201, the end of the box fixing plate 30 is provided as a box-like structure, the box-like structure is located in front of the outlet, and the first step-like structure 201 is matched with the box-like structure, so that a first fireproof structure is formed between the first step-like structure 201 and the box-like structure, as shown in fig. 2, 6 and 7. The preferred technical scheme of this embodiment is through the cooperation of first step-like structure 201 and box-like structure, can seal the outlet of electrical apparatus box, when mainboard 60 burns because of the reason, can prevent that the flame from scurrying out from the outlet. Specifically, when the mainboard 60 is fired because of the cause, at first accessible box body 10 and PCB fixed plate 40 prevent the flame to scurry out, even there is the flame to scurry out, still can prevent the flame to continue outwards scurrying out through box structure and lid 20, play multiple fire prevention effect. In addition, the opening of the wiring groove in the prior art is larger, and in the preferred technical scheme of the embodiment, the first step-shaped structure 201 on the box cover 20 is used for pressing the outgoing line while sealing the outgoing line opening, so that the outgoing line is fixed.

According to a preferred embodiment, the stepped structure further includes a second stepped structure 202, a slot structure is formed between the side surface of the case 10 and the side surface of the PCB fixing plate 40, and the second stepped structure 202 is engaged in the slot structure, so that a second fireproof structure is formed between the second stepped structure 202, the side surface of the case 10, and the side surface of the PCB fixing plate 40, as shown in fig. 3. Preferably, the second stepped structure 202 is a Z-shaped structure. The electrical apparatus box of the preferred technical scheme of this embodiment is through with second step-like structure 202 joint in the draw-in groove structure to can carry out the multilayer and seal, improve the fire behavior of electrical apparatus box.

Preferably, the first stepped structure 201 is a two-step stepped structure, which includes a first-step surface 2011, a second-step surface 2012, and a connecting surface 2013 between the first-step surface 2011 and the second-step surface 2012, as shown in fig. 6. Preferably, the first step surface 2011 is located at the outer side of the box 10 and is attached to the sidewall of the box 10. The second step surface 2012 is located on the outside of the box-like structure and abuts the side wall of the box-like structure. The connecting surface 2013 is located on the upper end face of the box-shaped structure and attached to the upper end face of the box-shaped structure.

Preferably, the box-like structure comprises a first plate 301, a second plate 302 and a third plate 303, as shown in fig. 2. The first plate 301 and the third plate 303 are located at two sides of the second plate 302 and extend in opposite directions, and the third plate 303 is attached to the side wall of the box 10 and fixedly connected to the box 10; a gap is maintained between the first plate 301 and the sidewall of the box body 10, so that a wire passage is formed between the first plate 301 and the sidewall of the box body 10.

Preferably, the case fixing plate 30 further includes two fixing portions 304 at the side of the case fixing plate 30, and the case fixing plate 30 can be fixedly connected to the rest of the electrical box through the fixing portions 304, as shown in fig. 2. The fixing portion 304 of the preferred technical solution of this embodiment can also be called an ear-type flanging structure, and is located at the left side of the box fixing plate 30.

According to a preferred embodiment, the first plate 301 is provided with a first guiding portion 3011, the first guiding portion 3011 is inclined towards the direction of the wire passing channel, and the first step-like structure 201 is assembled above the box-like structure via the first guiding portion 3011, as shown in fig. 2 or fig. 6. In a preferred embodiment of the present invention, the first guide portion 3011 is disposed on the first plate 301, and when the box cover 20 is assembled downwards, the box cover 20 can be guided to slide downwards by the first guide portion 3011, so that the assembly efficiency of the electrical box can be improved.

The box body fixing plate 30 of the preferred technical scheme of this embodiment, box-like structure and the left fixed part 304 through the tip have realized the function that the outlet was prevented fires, is fixed and leads in step, and a part realizes multiple functions simultaneously, practices thrift the space, arranges other parts and influences lessly, and it is great to have solved prior art electrical apparatus box and has occupied the volume, influences the problem that other parts were arranged.

Example 2

This embodiment is a further improvement on embodiment 1, and only the improved part will be described.

According to a preferred embodiment, the PCB fixing plate 40 is connected with the case 10 by a first snap assembly. Wherein, the first clip assembly comprises a first clip 401 located on the side wall of the PCB fixing plate 40 and a first card slot 101 located on the side wall of the box body 10, as shown in fig. 8. Not limited to this, the first clip 401 may be provided on the case 10 and the first card slot 101 may be provided on a side wall of the PCB fixing plate 40.

In the assembling process, after the PCB fixing plate 40 is assembled with the box body 10 through the first buckle assembly, the right side is fixed through the first buckle assembly, the left side is fixed through the screw, only 1 screw is needed, and compared with the prior art in which both sides are connected through screws, the assembling process can be simplified, and the assembling efficiency is improved. On the other hand, the first buckle 401 of the preferred technical scheme of this embodiment is located on the sidewall of the PCB fixing plate 40, and the first card slot 101 is located on the sidewall of the box body 10, that is, the position of the first buckle component is not set above the main board 60, so that the patch cord and the wiring can be facilitated, and the problem that the patch cord is inconvenient to operate in the installation process of the electrical box in the prior art is solved.

According to a preferred embodiment, the upper edge of the PCB fixing plate 40 is lower than the upper edge of the case 10. Preferably, the upper edge of the PCB fixing plate 40 is 1mm lower than the upper edge of the case 10. The electrical box of the preferred technical scheme of this embodiment, PCB fixed plate 40 generally adopts injection moulding process, because there is the error in injection moulding process, in order to avoid PCB fixed plate 40 to lead to the not good problem of leakproofness between lid 20 and the PCB fixed plate 40 because of the size is bigger than the back of injection moulding, the preferred technical scheme of this embodiment sets up PCB fixed plate 40's size in advance to be gone up along being less than the box body 10, even PCB fixed plate 40 has the error because of injection moulding process, but still can closely cooperate between lid 20 and the box body 10, thereby also can guarantee electrical box's sealed effect.

According to a preferred embodiment, the PCB fixing plate 40 is provided with a relief portion 402, the case 10 is provided with a second guide portion 102, and the second guide portion 102 is a slope structure inclined toward the relief portion 402, as shown in fig. 7. In a preferred embodiment of the present invention, the second guiding portion 102 is an inclined surface structure inclined toward the interior of the box body 10, or the sharp corner of the second guiding portion 102 is retracted and matched with the inclined surface to play a guiding role; the second guide 102 is also effective in preventing the cartridge 10 from springing back when it is molded. As shown in fig. 7, when the box cover 20 is assembled downward, the second guide part 102 guides the box cover 20 to slide downward, so that the assembling efficiency of the electrical box can be improved.

Preferably, the relief portion 402 has a notch structure. More preferably, the relief 402 is located at a corner of the PCB fixing plate 40. More preferably, the receding portion 402 has a trapezoidal structure with an opening gradually increasing from an end near the bottom of the PCB fixing plate 40 to an end near the top of the PCB fixing plate 40.

According to the preferred technical scheme of the embodiment, the abdicating part 402 is arranged on the PCB fixing plate 40, and when the PCB fixing plate 40 is obliquely placed into the box body 10 towards the side provided with the abdicating part 402, the abdicating part 402 can play an abdicating role, so that the reserved gap between the PCB fixing plate 40 and the box body 10 is favorably reduced, the gap between the PCB fixing plate 40 and the box body 10 after assembly is reduced, the sealing performance of the electrical box can be improved, and the overall size of the electrical box after assembly can be reduced; on the other hand, the yielding portion 402 is disposed on the rib of the PCB fixing plate 40, that is, only a portion of the rib is disposed as the yielding portion 402, which is higher in sealing performance and can ensure the sealing performance between the PCB fixing plate 40 and the case 10 compared with the structure in the prior art in which the PCB fixing plate 40 has only three side baffles.

The part of stepping down 402 that this embodiment prefers technical scheme sets up to the bottom little, and the big trapezium structure in upper end can guarantee that the part of stepping down 402 can provide sufficient space of stepping down on the one hand, and on the other hand can also guarantee the leakproofness between PCB fixed plate 40 and the box body 10, avoids the space of stepping down too big.

According to a preferred embodiment, the cover 20 is fixedly coupled to the case body 10, the case body fixing plate 30 and the PCB fixing plate 40 by first, second and

third screw assemblies

203, 204 and 205, respectively, as shown in fig. 1 or 8. After the related electrical elements 70 are assembled, the box cover 20 is assembled, and the box cover 20 is fixed with the box body 10, the box body fixing plate 30 and the PCB fixing plate 40 through three groups of screw components.

Example 3

This embodiment is a further improvement over embodiment 1 or embodiment 2, and only the improved portion will be described.

According to a preferred embodiment, the outlet is disposed on PCB mounting plate 40 and is lower than main board 60 within PCB mounting plate 40. The bottom of the outlet on PCB fixing board 40 is lower than main board 60 in PCB fixing board 40, or the outlet on PCB fixing board 40 is disposed downward. The one end and the mainboard 60 of connecting wire are connected, and the other end is connected with remaining power consumption part behind the outlet that is less than mainboard 60 for the connecting wire is walked line down after coming out from mainboard 60, even condensed water has condensed on the connecting wire, and the comdenstion water can fall down under the effect of gravity, avoids the comdenstion water to get into electrical apparatus box, and the return water gulf of having solved prior art electrical apparatus box sets up unreasonablely, and easy condensation or the problem of intaking damage circuit.

According to a preferred embodiment, the electrical box further comprises a wire passing groove 50, the wire passing groove 50 is disposed at the wire outlet on the PCB fixing plate 40, and the wire passing groove 50 is connected with the PCB fixing plate 40 by a second snap assembly, as shown in fig. 4 or 5. Preferably, the wire passing groove 50 is a U-shaped structure, and the PCB fixing plate 40 has a wire outlet matched with the wire passing groove 50. The wire passing groove 50 and the PCB fixing plate 40 of the preferred technical solution of this embodiment are connected through the second snap assembly, and the wire passing groove 50 can be fixed on the PCB fixing plate 40. The wire passing groove 50 of the preferred technical scheme of the embodiment is arranged at the wire outlet on the PCB fixing plate 40, and because the PCB fixing plate 40 is arranged on the inner side of the box body 10, the gas circulation at the connection position of the wire passing groove 50 and the wire outlet is weakened through the blocking and protecting effects of the box body 10, so that the sealing performance of the electrical box can be enhanced, and the problem that the buckle assembly is easy to fall off can be prevented.

Preferably, the second snap assembly includes second snaps 501 located at two sides of the wire passing groove 50 and mounting holes 403 located at two sides of the wire outlet on the PCB fixing plate 40, and the wire passing groove 50 is fixed at the wire outlet on the PCB fixing plate 40 by the second snaps 501 being snapped into the mounting holes 403, as shown in fig. 4 or fig. 5.

According to a preferred embodiment, the PCB fixing plate 40 is further provided with a rib structure, and the rib structure comprises a first rib 404 and a second rib 405, wherein the first rib 404 is located at two sides of the outlet, and the second rib 405 is located at two sides of the second snap assembly, as shown in fig. 4 or fig. 5. In the preferred technical scheme of the embodiment, the second buckle assembly and the outlet are provided with the rib structures, so that on one hand, the circulation of air flow can be weakened through the blocking effect of the first ribs 404 positioned on two sides of the outlet and the second ribs 405 positioned on two sides of the second buckle assembly, and the sealing effect at the outlet can be further better; on the other hand, the second flange 405 can also enhance the strength of the opening of the PCB fixing board 40, so as to prevent the board body at the opening from being broken off in the assembling process.

According to a preferred embodiment, a rib assembly is further disposed on the PCB fixing plate 40, the rib assembly is disposed on one side of the PCB fixing plate 40 close to the box 10, and the height of the rib assembly protruding from the PCB fixing plate 40 is greater than the height of the second buckle 501 protruding from the PCB fixing plate 40. Preferably, the tendon assemblies include a first tendon assembly 406 and a second tendon assembly 407, as shown in fig. 5. The first rib assembly 406 is located at the second fastening assembly, and the second rib assembly 407 is located at the bottom of the outlet. The preferred technical scheme of this embodiment sets up the rib subassembly on PCB fixed plate 40, through the effect of rib subassembly, can prevent to cross wire casing 50 and deviate from the outlet. Specifically, during assembly, the wire passing groove 50 and the PCB fixing plate 40 are fixedly connected through the second buckle assembly, then the PCB fixing plate 40 and the box body 10 are assembled, the assembly is obliquely assembled downwards during the assembly, and the second buckle 501 on the wire passing groove 50 or the wire passing groove 50 can be prevented from touching other parts or being stressed to fall off through the assembly of the rib assembly. On the other hand, the preferred technical scheme of this embodiment sets up the rib subassembly on PCB fixed plate 40, can weaken the gaseous circulation of outlet department through the contact of rib subassembly and box body 10 to make the sealed effect of outlet department better.

According to a preferred embodiment, a first guide plate 502 and a second guide plate 503 are respectively disposed at both sides of the opening of the wire passing groove 50, a gap is formed between the first guide plate 502 and the second guide plate 503 to form the wire passing channel, and inclined surfaces of the first guide plate 502 and the second guide plate 503 are oppositely disposed, as shown in fig. 4 or 5. The first guide plate 502 and the second guide plate 503 disposed at the opening of the wire passing groove 50 according to the preferred embodiment can guide the connecting wire.

According to a preferred embodiment, a plurality of first cards 504 and second cards 505 are respectively arranged on two sides of the wire passing groove 50, and a gap is formed between the end of the first card 504 and the end of the second card 505 to form a wire passing channel, as shown in fig. 4 or fig. 5. Preferably, the plurality of first catch plates 504 are arranged parallel to and spaced apart from each other. Preferably, the plurality of second chucking plates 505 are arranged in parallel and spaced apart from each other. In the prior art, the outlet of the electrical box is directly provided with an opening without a slot structure, so that the gap at the outlet is larger and insects and mice easily enter. In the preferred technical scheme of the embodiment, the first clamping plates 504 and the second clamping plates 505 are respectively arranged on two sides of the wire passing groove 50, so that the gap of the wire passing groove 50 is small, insects are difficult to enter, and the insect prevention performance of the electric appliance box is improved.

From the description of above-mentioned embodiment 1 ~ 3, the utility model discloses an electrical apparatus box promotes its fire behavior through several aspects as follows at least:

(1) the box body 10 and the box cover 20 of the electrical box are made of sheet metal parts, and the box cover 20 covers the box body 10, so that a sealing structure can be formed between the box cover 20 and the box body 10, and a fireproof effect is achieved;

(2) the box cover 20 is provided with a first step-shaped structure 201, the end part of the box body fixing plate 30 is provided with a box-shaped structure, and the first step-shaped structure 201 is matched with the box-shaped structure, so that the outlet of the electrical box can be sealed, flame can be prevented from escaping from the outlet, and a fireproof effect is achieved;

(3) the box cover 20 is provided with a second step-shaped structure 202, a clamping groove structure is formed between the side surface of the box body 10 and the side surface of the PCB fixing plate 40, and the second step-shaped structure 202 is clamped in the clamping groove structure, so that a multi-layer sealing structure is formed on the side surface of the box body 10, and the fireproof performance of the electrical box is improved;

(4) be provided with rib subassembly and baffle structure on the PCB fixed plate 40, through the effect of rib subassembly and flange structure, can weaken gaseous circulation for the sealed effect of outlet is better, has reduced mainboard 60 by the hidden danger that ignites.

(5) The whole sealing performance of the electrical box is good, so that the air flow at the inner side of the electrical box is less, the hidden danger that the main board 60 is ignited is reduced, and the electrical safety is improved.

From the above description of embodiments 1 ~ 3, the utility model discloses an electrical apparatus box promotes its protection against insects performance through several aspects as follows at least:

(1) according to the structure for improving the fireproof performance of the electrical box, the electrical box forms the sealing structure, so that the fireproof performance of the electrical box can be improved, and meanwhile, the insect prevention performance of the electrical box can also be improved;

(2) the wire outlet is provided with the wire passing groove 50, the two sides of the wire passing groove 50 are respectively provided with a plurality of first clamping plates 504 and second clamping plates 505, and the gaps of the wire passing groove 50 can be smaller through the action of the first clamping plates 504 and the second clamping plates 505, so that the insect prevention effect can be achieved.

The utility model discloses a box body 10, lid 20 and box body fixed plate 30's structure and the mode of mutually supporting not only can satisfy the relevant function of electrical apparatus box, can also make electrical apparatus box have great improvement on fire prevention, protection against insects, shared space and installation effectiveness.

Example 4

This embodiment is right the utility model discloses an indoor set carries out the detailed description.

The indoor unit of the embodiment comprises the electric box in any one of the technical schemes of the embodiments 1-3.

The indoor unit of this embodiment, including the electrical apparatus box of any one of technical scheme in embodiment 1 ~ 3, because the electrical apparatus box has good fire behavior to make the indoor unit of this embodiment also have good fire behavior, the electric safety promotes.

According to a preferred embodiment, the electrical box is arranged in a lower-middle position of the indoor unit. Preferably, the lower-middle position of the indoor unit refers to a position that can be directly touched by a worker.

In the indoor unit adopting the preferred technical scheme, the electric appliance box is arranged at the middle lower part of the indoor unit, on one hand, the electric appliance box is convenient for workers to disassemble, install, maintain a mainboard, connect a patch cord and other operations after sale, on the other hand, the connecting line of the electric component does not need to be completely upwards wired to reach the electric appliance box mainboard, and the problems that in the prior art, the electric appliance box is arranged at the top of the indoor unit, the workers cannot conveniently operate after sale and the wiring is messy and unattractive are solved.

Example 5

This embodiment is right the utility model discloses an air conditioner carries out the detailed description.

The air conditioner of the embodiment includes the indoor unit according to any one of embodiments 4.

The air conditioner of this embodiment, including the indoor set of any one of technical scheme in embodiment 4, because the indoor set has good fire behavior to make the air conditioner of this embodiment also have good fire behavior, the electric safety promotes.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an electrical box, its characterized in that, includes box body (10), lid (20), box body fixed plate (30) and PCB fixed plate (40), wherein, box body (10) with box body fixed plate (30) fixed connection, PCB fixed plate (40) are located in box body (10) to

The box cover (20) is provided with a step-shaped structure, when the box cover (20) covers the upper part of the box body (10), the step-shaped structure and the box body (10), the box body fixing plate (30) and/or a fireproof structure is formed between the PCB fixing plates (40).

2. The appliance box according to claim 1, characterized in that the step-like structure comprises a first step-like structure (201), the end of the box body fixing plate (30) is provided as a box-like structure, which is located in front of the outlet, and the first step-like structure (201) cooperates with the box-like structure so that a first fire-proof structure is formed between the first step-like structure (201) and the box-like structure.

3. The electrical box according to claim 1 or 2, characterized in that the step-like structure comprises a second step-like structure (202), a slot structure is formed between the side surface of the box body (10) and the side surface of the PCB fixing plate (40), and the second step-like structure (202) is clamped in the slot structure, so that a second fireproof structure is formed among the second step-like structure (202), the side surface of the box body (10) and the side surface of the PCB fixing plate (40).

4. The electrical box according to claim 2, characterized in that said box-like structure comprises a first plate (301), a second plate (302) and a third plate (303), wherein said first plate (301) and said third plate (303) are located on either side of said second plate (302) and extend in opposite directions,

the third plate body (303) is attached to the side wall of the box body (10) and fixedly connected with the box body (10); a gap is kept between the first plate body (301) and the side wall of the box body (10), so that a wire passing channel is formed between the first plate body (301) and the side wall of the box body (10).

5. The electrical box according to claim 4, wherein the first plate body (301) is provided with a first guide portion (3011), the first guide portion (3011) is inclined to the direction of the wire passage, and the first stepped structure (201) is assembled above the box-shaped structure through the first guide portion (3011).

6. The electrical box according to claim 1, wherein the PCB fixing plate (40) is connected with the box body (10) by a first snap assembly, wherein,

the first buckle assembly comprises a first buckle (401) positioned on the side wall of the PCB fixing plate (40) and a first clamping groove (101) positioned on the side wall of the box body (10).

7. The electrical box according to claim 1, wherein the upper edge of the PCB fixing plate (40) is lower than the upper edge of the box body (10).

8. The electrical box according to claim 1, wherein the PCB fixing plate (40) is provided with a position-giving portion (402), the box body (10) is provided with a second guiding portion (102), and the second guiding portion (102) is a slope structure inclined toward the inside of the box body (10).

9. The electrical box according to claim 1, wherein the box cover (20) is fixedly connected with the box body (10), the box body fixing plate (30) and the PCB fixing plate (40) by a first screw assembly (203), a second screw assembly (204) and a third screw assembly (205), respectively.

10. The electrical box according to claim 2, wherein the outlet is disposed on the PCB fixing plate (40) and the bottom of the outlet is lower than a main board (60) within the PCB fixing plate (40).

11. The appliance box according to claim 1, further comprising a wire passing groove (50), wherein the wire passing groove (50) is disposed at a wire outlet on the PCB fixing plate (40), and the wire passing groove (50) is connected with the PCB fixing plate (40) through a second snap assembly.

12. The electrical box according to claim 11, wherein the second snap assembly comprises second snaps (501) located at two sides of the wire passing groove (50) and mounting holes (403) located at two sides of an outlet on the PCB fixing plate (40), and the wire passing groove (50) is fixed at the outlet on the PCB fixing plate (40) by the second snaps (501) being snapped into the mounting holes (403).

13. The electrical box according to claim 11, wherein a rib structure is further disposed on the PCB fixing plate (40), and the rib structure comprises a first rib (404) and a second rib (405), wherein the first rib (404) is disposed on two sides of the outlet, and the second rib (405) is disposed on two sides of the second snap assembly.

14. The electrical box according to claim 11, wherein a rib assembly is further disposed on the PCB fixing plate (40), the rib assembly is disposed on a side of the PCB fixing plate (40) close to the box body (10), and a height of the rib assembly protruding from the PCB fixing plate (40) is greater than a height of the second buckle (501) protruding from the PCB fixing plate (40).

15. The electrical box according to claim 11, wherein a first guide plate (502) and a second guide plate (503) are respectively disposed at both sides of the opening of the wire passing groove (50), a gap is formed between the first guide plate (502) and the second guide plate (503) to form a wire passing passage, and inclined surfaces of the first guide plate (502) and the second guide plate (503) are oppositely disposed.

16. The appliance box according to claim 11, wherein a plurality of first cards (504) and second cards (505) are respectively disposed at both sides of the wire passing groove (50), and a gap is provided between an end of the first cards (504) and an end of the second cards (505) to form a wire passing channel.

17. An indoor unit, characterized by comprising an electrical box according to any one of claims 1 to 16.

18. An air conditioner characterized by comprising the indoor unit according to claim 17.