CN110769630A - Electrical apparatus box, indoor set and air conditioner - Google Patents

Abstract

The invention belongs to the technical field of air conditioners, and particularly discloses an electric appliance box, an indoor unit and an air conditioner. The electric appliance box comprises a box body and a cover body, wherein the box body is provided with an opening at one end, the cover body is arranged at the opening of the box body in a covering mode, the four sides of the electric appliance box are provided with buckle assemblies, and the box body and the cover body are connected through the buckle assemblies in a clamping mode. The indoor set includes above-mentioned electrical apparatus box, and the air conditioner includes above-mentioned indoor set. The electric appliance box, the indoor unit and the air conditioner provided by the invention can improve the installation efficiency of the electric appliance box, the indoor unit and the air conditioner and reduce the assembly cost.

Description

Electrical apparatus box, indoor set and air conditioner

Technical Field

The invention relates to the technical field of air conditioners, in particular to an electric appliance box, an indoor unit and an air conditioner.

Background

The electrical box is a component used for setting a control circuit board, a power socket connecting line and an internal and external machine connecting line in an air conditioning system, the traditional electrical box generally comprises a box body and a box cover, electric devices such as the control circuit board and the like are arranged in the box body, and the box cover is used for sealing an opening of the box body to realize the sealing arrangement of the electrical box.

In the prior art, the box body and the box cover are usually fixed by adopting screw connection, and the connection mode has the following defects: (1) because the electrical box is usually formed by injection molding, the material of the electrical box becomes brittle in cold seasons in winter, and during the process of connecting the box cover and the box body by the screw, the screw is easy to slide or crack due to overlarge screwing torque, or the screw is not screwed in place due to undersize screwing torque, so that the safety problems of reduced sealing performance, unstable connection and the like of the electrical box are easily caused; (2) the assembly complexity is improved by manually screwing the screws, the assembly efficiency is low, and the assembly labor intensity is high; (3) at the in-process of revolving the screw, because the screw is less, drop easily to electrical apparatus box inside or electrical apparatus box outside, be unfavorable for the maintenance and the dismantlement of electrical apparatus box, and drop to the screw of electrical apparatus box inside if not discovery and be detained inside electrical apparatus box, cause the harm to the operation of the inside electrical components of electrical apparatus box easily, reduce electrical apparatus box's security performance.

Therefore, there is a need for an electrical box that can improve the convenience and efficiency of assembly, reduce the assembly cost, and improve the convenience of maintenance of the electrical box.

Disclosure of Invention

One object of the present invention is to provide an electrical box to improve the convenience of assembling the electrical box, reduce the labor cost and material cost of assembling the electrical box, and improve the efficiency of assembling and maintaining the electrical box.

Another object of the present invention is to provide an indoor unit, which can improve the assembly efficiency of the indoor unit and reduce the assembly and maintenance costs of the indoor unit.

The invention further aims to provide the air conditioner, so that the production cost of the air conditioner is reduced, and the production efficiency of the air conditioner is improved.

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

the electric box comprises a box body and a cover body, wherein the box body is provided with an opening at one end, the cover body is arranged at the opening of the box body in a covering mode, fastening assemblies are arranged on four sides of the electric box, and the box body and the cover body are connected through the fastening assemblies in a clamping mode.

As a preferred technical solution of the electrical box, the buckle assembly includes:

the first buckle assembly comprises an elastic arm and a first clamping protrusion, a first bayonet clamped with the first clamping protrusion is formed in the elastic arm, one of the elastic arm and the first clamping protrusion is arranged on the box body, and the other of the first clamping protrusion and the elastic arm is arranged on the cover body; and/or

The second buckle assembly comprises a second buckle and a third buckle, the second buckle is arranged on the cover body in a protruding mode, the third buckle is arranged on the box body in a protruding mode, the third buckle is provided with an opening facing the inside of the box body, and the second buckle is arranged in the clamping groove in a protruding mode.

As an electrical apparatus box's preferred technical scheme, the lid includes inner cup and enclosing cover, second buckle subassembly still includes the second bayonet socket, the second bayonet socket sets up on the enclosing cover, the protruding setting of second card is in on the enclosing cover, the protruding ability of second card simultaneously with the second bayonet socket reaches the protruding joint of third card.

As an electrical apparatus box's preferred technical scheme, electrical apparatus box still includes the third buckle subassembly, the inner cup with the enclosing cover passes through the third buckle subassembly joint, the at least relative both sides of lid all are provided with the third buckle subassembly.

As a preferable technical solution of the electrical box, the first clamping protrusion is disposed on the positioning flange.

As a preferred technical scheme of the electrical apparatus box, the box body outside is equipped with the location flange outwards, the location flange is lower than the open end face of box body, the lid towards the terminal surface of box body with the location flange butt.

As a preferred technical scheme of the electrical apparatus box, the part of the box body higher than the positioning flange forms a sealing flange, and the sealing flange is attached to the inner side wall of the cover body.

As an optimal technical scheme of the electric appliance box, the third clamping protrusion is formed by extruding the side plates of the box body outwards, and the box body is provided with first reinforcing ribs on two sides of the third clamping protrusion.

An indoor unit comprises the electric appliance box.

An air conditioner comprises the indoor unit.

The invention has the beneficial effects that:

according to the electrical box provided by the invention, the box body and the cover body are buckled and connected through the buckle assembly, so that the box body and the cover body can be conveniently assembled, disassembled and maintained, the assembly efficiency and the maintenance convenience are improved, and the labor cost required by assembly is reduced; meanwhile, the four sides of the electrical box are provided with the buckle assemblies, so that the connection tightness, stability and sealing performance of the box body and the cover body are ensured, and the electrical box is not required to be connected by adding an additional connecting structure; moreover because the integrative setting of buckle subassembly is on the electrical apparatus box, need not be independent of the spare part of electrical apparatus box and assemble the electrical apparatus box, reduced material cost, reduced the risk that spare part is lost or drops in inside simultaneously, improved the security and the reliability of electrical apparatus box.

According to the indoor unit provided by the invention, due to the adoption of the electrical box, the convenience in installation and maintenance of the indoor unit is improved, and the production and assembly cost of the indoor unit is reduced.

The air conditioner provided by the invention adopts the indoor unit, so that the convenience in installation and maintenance of the air conditioner is improved, and the production and assembly cost of the air conditioner is reduced.

Drawings

Fig. 1 is a schematic diagram of a disassembled structure of an electrical box provided by an embodiment of the invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at I;

FIG. 3 is an enlarged view of a portion of FIG. 1 at J;

FIG. 4 is an enlarged view of a portion of FIG. 1 at K;

fig. 5 is a partial enlarged view at L in fig. 1.

The figures are labeled as follows:

1-box body; 11-a base plate; 12-a first side panel; 13-a second side panel; 14-a third side panel; 15-a fourth side panel; 16-a locating flange; 17-sealing the flange; 18-a first reinforcing rib; 19-a wire through hole; 110-screw post;

2-inner cover; 21-inner ceiling; 22-a first inner fold; 23-second inner fold; 24-a second reinforcing rib; 25-avoidance port;

3-outer cover; 31-outer top plate; 32-a first outer fold; 33-second outer fold; 34-connecting vias;

41-first snap; 411 — first guide ramp; 42-a resilient arm; 421-a first bayonet;

51-a second snap; 511-bump portion; 512-guiding rib part; 5121-a second guide ramp; 52-a second bayonet; 53-third snap; 531-boss portion; 532-reinforcing rib parts;

61-fourth snap; 62-a third bayonet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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

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

Fig. 1 is a schematic diagram of a split structure of an electrical box according to an embodiment of the present invention, and as shown in fig. 1, the embodiment provides an electrical box that can be applied to an electrical control device such as an air conditioner to control operation of the electrical control device. The electrical box mainly comprises a box body 1 and a cover body, wherein the box body 1 is provided with an opening at one end, and is internally provided with electric control elements such as a main control board, a power supply and the like, and the cover body is covered at the opening end of the box body 1 and is used for sealing the box body 1 and enabling the electrical box to form a sealing structure so as to protect the electric control elements in the box body 1 and ensure the normal operation of the electrical box.

In this embodiment, the four sides of electrical apparatus box all are provided with buckle subassembly, and box body 1 and lid pass through the buckle subassembly lock and connect. The box body 1 and the cover body are buckled and connected through the buckle assembly, so that the box body 1 and the cover body can be conveniently assembled, disassembled and maintained, the assembling efficiency and the maintenance convenience are improved, and the labor cost required by assembling is reduced; meanwhile, the four sides of the electrical box are provided with the buckle assemblies, so that the connection tightness, stability and sealing performance of the box body 1 and the cover body are ensured, and the electrical box is not required to be connected by adding an additional connecting structure; moreover because the integrative setting of buckle subassembly is on the electrical apparatus box, need not be independent of the spare part of electrical apparatus box and assemble the electrical apparatus box, reduced material cost, reduced the risk that spare part is lost or drops in inside simultaneously, improved the security and the reliability of electrical apparatus box.

Specifically, the electrical box has a top and a bottom that are oppositely disposed and four sides that are enclosed end to end between the top and the bottom, and the four sides are respectively a first side and a third side that are oppositely disposed and a second side and a fourth side that are oppositely disposed. In the present embodiment, the top and four sides are mainly formed by the case 1, and the top is formed by the lid.

In the present embodiment, the box body 1 includes a bottom plate 11 and four side plates surrounding the periphery of the bottom plate 11, corresponding to four side portions of the electrical box, the four side plates are a first side plate 12 and a third side plate 14 which are oppositely arranged and a second side plate 13 and a fourth side plate 15 which are oppositely arranged. The box body 1 is internally provided with electric control elements such as a circuit board and a power supply, and the electric control elements arranged in the box body 1 are conventional in the field, which is not described in detail in this embodiment. In order to facilitate the connection between the electronic control element in the box body 1 and the external electronic control device, in this embodiment, the first side plate 12 and the third side plate 14 are both provided with wire passing holes 19.

In this embodiment, in order to improve the connection tightness and sealing performance between the box body 1 and the cover body, it is preferable that the box body 1 is provided with a positioning flange 16 protruding outward from the outer surface of each side plate, and when the cover body is connected to the box body 1, the end surface of the cover body facing the box body 1 abuts against the positioning flange 16. The setting of location flange 16 can provide the location for the connection of box body 1 and lid, and can seal the clearance between lid inside wall and the 1 lateral wall of box body, prevents inside outside dust, steam etc. from getting into the electrical apparatus box through this clearance, improves the connection leakproofness of lid and box body 1.

Further, in this embodiment, the distance from the upper end surface of the box body 1 to the bottom plate 11 is greater than the distance from the positioning flange 16 to the bottom plate 11, so that a sealing flange 17 is formed at a portion of the box body 1 higher than the positioning flange 16, the sealing flange 17 is located at the inner side of the positioning flange 16, and after the box body 1 and the cover are fastened, the outer surface of the sealing flange 17 is attached to the inner surface of the periphery of the cover. The sealing flange 17 can further improve the tightness and sealing between the box 1 and the cover.

In the present embodiment, the cap body includes an inner cap 2 and an outer cap 3 having substantially uniform shapes, the inner cap 2 is located inside the outer cap 3, and the inner cap 2 and the outer cap 3 are detachably coupled. By providing the cover in the form of a combination of an inner cover 2 and an outer cover 3, the structural strength of the cover can be improved on the one hand, and on the other hand, by selecting the materials of the inner cover 2 and the outer cover 3, more excellent performance can be obtained. In this embodiment, preferably, inner cup 2 adopts the stainless steel to make, and enclosing cover 3 adopts the formation of moulding plastics, and the setting of inner cup 2 can improve the fire behavior of electrical apparatus box, simultaneously because enclosing cover 3 and box body 1 adopt the formation of moulding plastics, reduces processing cost and electrical apparatus box weight, improves the waterproof insulating nature of electrical apparatus box.

In the present embodiment, the outer cover 3 includes an outer top plate 31 and outer folded edges bent along the edge of the outer top plate 31 relative to the outer top plate 31, corresponding to four side portions of the electrical box, the outer folded edges are a first outer folded edge 32 and a third outer folded edge which are oppositely disposed, and a second outer folded edge 33 and a fourth outer folded edge which are oppositely disposed, respectively. The inner cover 2 includes an inner top plate 21 and inner folded edges bent along the edge of the inner top plate 21 relative to the inner top plate 21, corresponding to four side portions of the electrical appliance box, the inner folded edges are a first inner folded edge 22 and a third inner folded edge which are arranged oppositely, and a second inner folded edge 23 and a fourth inner folded edge which are arranged oppositely, respectively.

The buckle assembly comprises a first buckle assembly arranged on the first side and the third side of the electrical appliance box, the first buckle assembly comprises an elastic arm 42 and a first clamping protrusion 41, a first clamping opening 421 is arranged on the elastic arm 42, and the first clamping protrusion 41 is clamped with the first clamping opening 421. Preferably, taking the first snap assembly disposed on the first side of the electrical box as an example, in this embodiment, the first snap protrusion 41 is disposed outside the first side plate 12 of the box body 1, the elastic arm 42 is disposed outside the first inner folded edge 22, one end of the elastic arm 42 is connected with the first inner folded edge 22, the other end extends in a direction toward the box body 1, and the end of the elastic arm 42 is disposed corresponding to the first snap protrusion 41. When the inner cup 2 is covered on the box body 1 and the inner cup 2 is pressed along the direction towards the box body 1, the free end of the elastic arm 42 is contacted with the first clamping protrusion 41, and the elastic arm elastically deforms outwards under the action of extrusion force, the first clamping protrusion 41 is extruded into the first clamping opening 421 of the elastic arm 42, meanwhile, the elastic arm 42 returns under the action of restoring force, so that the first clamping protrusion 41 is tightly clamped in the first clamping opening 421, and the clamping stability and the clamping tightness are improved. Moreover, because elastic arm 42 sets up on inner cup 2, after inner cup 2 and 3 locks of enclosing cover, the one end that elastic arm 42 connects inner cup 2 is located enclosing cover 3 inboardly, can avoid elastic arm 42 to warp the too big tearing scheduling problem that leads to, improves elastic arm 42's structural strength, simultaneously, because inner cup 2 and elastic arm 42 all are located the inboard of enclosing cover 3, can reduce the protruding 41 sizes of first card, improve the structure aesthetic property of electrical apparatus box.

The setting of the first buckle component on the second side of the electrical box can refer to the setting of the first buckle component on the first side, and the description is omitted in this embodiment. With the protruding 41 setting of first card on box body 1, set up spring arm 42 on the lid, exert the extrusion force to spring arm 42 when can conveniently pressing the lid, improve the joint and connect the convenience. In another embodiment, the first latch 41 may be disposed on the cover, and the elastic arm 42 may be disposed on the case 1. In other embodiments, the elastic arm 42 may be disposed at the first outer folding edge 32 of the outer cover 3, and the first locking protrusion 41 is disposed on the case body 1.

In order to further improve the tight connection between the box body 1 and the cover, in the embodiment, the first locking protrusion 41 is preferably disposed on the positioning flange 16, so as to improve the structural strength of the first locking protrusion 41 and increase the weather resistance of the parts during after-sale transportation.

In this embodiment, the latch assembly further includes a second latch assembly disposed on the second and fourth sides of the appliance box. Preferably, the second snap assembly comprises a second snap projection 51 and a third snap projection 53, a snap groove with an opening facing the inner side of the box body 1 is formed on the third snap projection 53, and the second snap projection 51 is snapped with the snap groove. Taking the second snap assembly disposed on the second side of the electrical box as an example, specifically, the second snap projection 51 is disposed outside the second inner folded edge 23 of the inner lid 2, and the third snap projection 53 is correspondingly disposed on the second side plate 13. Through set up the protruding 53 of third card on box body 1, can avoid offering the bayonet socket that is used for the protruding 51 block of second card on the lid, can prevent that outside dust, steam etc. from getting into the electrical apparatus box through the bayonet socket inside, improve the leakproofness and the structural integrity of electrical apparatus box.

More preferably, in this embodiment, the second snap assembly further includes a second bayonet 52, the second bayonet 52 is correspondingly disposed at the second outer folding edge 33 of the outer cover 3, and the second bayonet 52 can be snapped with the second snap projection 51. The arrangement mode can simultaneously realize the clamping connection of the inner cover 2 and the outer cover 3 and the clamping connection between the inner cover 2 and the box body 1 by the second clamping component, and can reduce the number of clamping components required by the clamping connection, simplify the structure of the electric appliance box and improve the structural compactness of the electric appliance box while ensuring the clamping stability of the box body 1 and the cover body; moreover, connect inner cup 2 and 3 block of enclosing cover, improved inner cup 2 and 3 dismantlement convenience of enclosing cover, avoid adopting the packaging efficiency that screw connection leads to low, the part easily loses the scheduling problem. The arrangement of the second buckle component on the fourth side of the electrical box can refer to the arrangement of the second buckle component on the second side of the electrical box, and details are not repeated in this embodiment.

In order to further improve the connection tightness between the inner cap 2 and the outer cap 3, it is preferable that the inner cap 2 and the outer cap 3 are also snap-coupled using a third snap assembly. In this embodiment, the third snap assembly is disposed on the second side and the fourth side of the electrical box. Taking the third fastening component arranged on the second side of the electrical appliance box as an example, specifically, the third fastening component includes a third fastening opening 62 and a fourth fastening protrusion 61, the fourth fastening protrusion 61 is arranged at the second inner folding edge 23 of the inner cover 2, the third fastening opening 62 is arranged at the second outer folding edge 33 of the outer cover 3, and the fourth fastening protrusion 61 is fastened with the third fastening opening 62. More preferably, in this embodiment, the second fastening assembly is disposed in the middle of the second side and the fourth side of the electrical box, and the third fastening assembly is disposed in a group at two ends of the second side and the fourth side of the electrical box, respectively, so as to further improve the connection sealing performance and stability between the inner cover 2 and the outer cover 3.

The third buckle component can be set on the third side of the electrical box according to the setting of the third buckle component on the fourth side of the electrical box, and details are not repeated in this embodiment. Through setting up third buckle subassembly and connecting inner cup 2 and enclosing cover 3, can be when guaranteeing inner cup 2 and 3 connection stability of enclosing cover and leakproofness, reduce the group number that sets up of second buckle subassembly to simplify the processing complexity of box body 1.

This embodiment realizes the connection of box body 1 and lid through setting up first buckle subassembly and second buckle subassembly, when can utilizing the different block modes of two kinds of different buckle subassemblies to improve the joint stability between box body 1 and the lid, simplifies buckle subassembly's processing and production. In another embodiment, the first fastening assemblies may be disposed on four sides of the electrical box to connect the box body 1 and the cover, and the third fastening assembly is used to connect the inner cover 2 and the outer cover 3. In another embodiment, the four sides of the electrical box may be provided with the second fastening components to connect the box body 1 and the cover, and at this time, the third fastening components may be specifically set according to the number of the second fastening components. In another embodiment, positions of the first and second latch assemblies on four sides of the electrical box may be changed, and this embodiment is not described again.

In this embodiment, the top plate of the cover includes a first portion and a second portion connected to each other along the first side, and the first portion and the second portion are connected to form a predetermined obtuse angle facing the cover. Under this kind of setting, because first portion and second portion slope setting, for the connection leakproofness of further improving lid and box body 1, this embodiment all adopts first buckle subassembly or second buckle subassembly joint between first portion and the box body 1 and between second portion and the box body 1 at the first side and the third side department of electrical apparatus box.

In this embodiment, the first portion and the box body 1 are connected by a first buckle assembly, and the second portion and the box body 1 are connected by a second buckle assembly. Realize being connected between first portion, second portion and the box body 1 respectively through setting up first buckle subassembly or second buckle subassembly, when can guaranteeing box body 1 and lid connection stability, guarantee the connection stability and the connection compactness between inner cup 2 and the enclosing cover 3, avoid setting up the buckle structure that is used for inner cup 2 and enclosing cover 3 to connect alone at the first side and the second side of electrical apparatus box, simplify the processing and the installation of electrical apparatus box.

In another embodiment, the first part and the box body 1 can be connected by a second snap assembly, and the second part and the box body 1 can be connected by a first snap assembly. In another embodiment, the first portion and the second portion may be connected by a first snap assembly, and the inner cover 2 and the outer cover 3 are provided with a third snap assembly on the first side and the second side of the electrical box. In yet another embodiment, the first and second portions are both connected to the case 1 using a second snap assembly.

In the present embodiment, since the elastic arm 42 is disposed inside the outer cover 3 and located between the inner cover 2 and the outer cover 3, and there are gaps between the first inner folded edge 22 and the first outer folded edge 32 and between the second inner folded edge 23 and the second outer folded edge 33, in order to improve the structural strength of the cover body and the connection tightness between the inner cover 2 and the outer cover 3, it is preferable that in the present embodiment, the second reinforcing rib 24 is disposed at the first inner folded edge 22 and the third inner folded edge, and when the inner cover 2 is fastened to the outer cover 3, the second reinforcing rib 24 abuts against the inner surface of the corresponding outer folded edge, so that the connection tightness between the inner cover 2 and the outer cover 3 can be improved on the one hand, and the structural strength of the inner cover 2 is increased on the other hand, that is.

In this embodiment, two second reinforcing ribs 24 are disposed at the second portion of the cover corresponding to the first inner folded edge 22 and the third inner folded edge, and the two second reinforcing ribs 24 are respectively located at two sides of the second locking protrusion 51; the first inner folded edge 22 and the third inner folded edge are provided with a second reinforcing rib 24 corresponding to the first portion of the cover body and located at one end of the corresponding inner folded edge far away from the second portion. In other embodiments, the number of the second reinforcing ribs 24 arranged on the first inner folded edge 22 and the third inner folded edge can be set according to the requirement, and this embodiment is not particularly limited.

Fig. 2 is a partial enlarged view of a portion I in fig. 1, and as shown in fig. 2, in order to improve the engaging convenience of the first snap assembly, it is preferable that a first guide slope 411 is provided on a side of the first snap protrusion 41 facing the inner lid 2, and the first guide slope 411 is inclined in a direction away from a side plate of the case 1 toward the bottom plate 11 of the case 1. The first guiding slope 411 is configured to enable the free end of the elastic arm 42 to move downward and outward along the first guiding slope 411 when the cover body is pressed, so as to enable the free end of the elastic arm 42 to elastically deform. Further, the free end of the elastic arm 42 has an inclined end face, and the inclined direction and the inclined angle of the inclined end face are matched with the inclined direction and the inclined angle of the first guiding inclined plane 411, so that the deformation resistance of the elastic arm 42 when the elastic arm 42 acts on the first clamping protrusion 41 is further reduced, and the clamping convenience of the first clamping protrusion 41 and the elastic arm 42 is improved.

Fig. 3 is a partial enlarged view of a portion J in fig. 1, and as shown in fig. 3, in order to improve the fastening convenience and fastening stability of the second snap assembly, it is preferable that the second snap 51 includes a protruding portion 511 and a guiding rib portion 512, the guiding rib portion 512 is disposed on a side of the protruding portion 511 away from the box body 1, the guiding rib portion 512 is respectively connected with the protruding portion 511 and the inner folded edge of the inner cap 2, the guiding rib portion 512 has a second guiding inclined surface 5121 inclined relative to the inner folded edge, and the second guiding inclined surface 5121 is inclined in a direction away from the inner folded edge toward a direction close to the box body 1. The arrangement of the guiding rib portion 512 can guide the second bayonet 52 for the second protruding portion 51 to be clamped in, and can improve the tightness of the clamping, improve the difficulty of the second protruding portion 51 separating from the second bayonet 52, and improve the structural strength of the second protruding portion 51. In this embodiment, the inclination angle of the second guide inclined surface 5121 with respect to the inner folded edge of the inner cap 2 is preferably 30 ° to 60 °, and preferably 45 °.

In this embodiment, the guiding rib 512 is a right triangle, and two right-angled sides of the right triangle are respectively connected to the protruding portion 511 and the inner folded edge. In other embodiments, the guiding rib 512 may also be a straight structure with the inner folded edge being inclined. In this embodiment, two guiding rib portions 512 are arranged at intervals along the length direction corresponding to the inner folded edge, so that the structural strength of the second clamping protrusion 51 is further improved, the size of the single guiding rib portion 512 along the length direction of the inner folded edge is reduced, and the required materials of the second clamping protrusion 51 are reduced. In other embodiments, the number of the guiding ribs 512 may be 1 or more, and the number of the guiding ribs 512 may be specifically set according to the size of a single guiding rib 512 in the length direction of the inner fold and the size of the second snap projection 51 in the length direction of the inner fold, which is not specifically limited in this embodiment.

In this embodiment, in order to facilitate the second protrusion 51 to be engaged with the third protrusion 53, a side of the second protrusion 51 away from the guiding rib 512 has a third guiding inclined plane, and the third guiding inclined plane is inclined in a direction away from the inner folded edge toward a direction away from the box body. When the second protrusion 51 is engaged with the third protrusion 53, the third guiding slope contacts with the end surface of the third protrusion 53, and the third protrusion is pressed from the inner side of the third protrusion 53, so that the third protrusion 53 deforms in the direction away from the inside of the case, thereby inserting the second protrusion 52 into the engaging groove of the third protrusion 53.

Fig. 4 is a partially enlarged view of K in fig. 1, and as shown in fig. 4, since there is a gap between the inner folded edge of the inner lid 2 and the outer folded edge of the outer lid 3 at the first and third sides of the electric appliance box, the structure of the second catching protrusion 51 provided at the first and third inner folded edges 22 and 23 is slightly different from the structure of the second catching protrusion 51 provided at the fourth inner folded edge. As shown in fig. 4, the guide rib portion 512 of the second catching protrusion 51 disposed at the first inner folded edge 22 and the third inner folded edge has a trapezoidal structure, and a second guide inclined surface 5121 is formed at one inclined side of the trapezoidal structure. This kind of mode of setting up can make one side that direction muscle portion 512 kept away from lug portion 511 be used for with 3 terminal surface butts of enclosing cover, improves enclosing cover 3 and inner cup 2 connection stability, avoids simultaneously because of setting up the too long, the protruding 51 oversize scheduling problem of second card of direction muscle portion 512 overlength that triangle-shaped direction muscle portion 512 leads to.

In the present embodiment, it is more preferable that the fourth card projection 61 has the same structure as the second card projection 51 positioned on the second and fourth sides of the electrical box when the fourth card projection 61 is positioned on the second or fourth side of the electrical box, and the fourth card projection 61 has the same structure as the second card projection 51 positioned on the first side of the electrical box when the fourth card projection 61 is positioned on the first or third side of the electrical box. This kind of setting form can improve the block convenience and the block stability between fourth calorie of protruding 61 and the third bayonet 62 of card, and this embodiment is no longer repeated.

Fig. 5 is a partial enlarged view of the third card projection 53 at L in fig. 1, and as shown in fig. 5, in the present embodiment, the third card projection 53 includes a boss portion 531 having a card slot opening toward the inside of the cover, and a reinforcing rib portion 532 provided on a side of the boss portion 531 close to the bottom plate 11 of the case body 1 for improving the structural strength of the third card projection 53.

In the present embodiment, the third protrusions 53 are formed by pressing the corresponding side plates of the case 1 outward, and therefore, in order to improve the structural strength of the case 1 at the third protrusions 53, it is preferable that the first reinforcing ribs 18 are provided outside the side plates of the case 1, and the first reinforcing ribs 18 are provided on both sides of each third protrusion 53.

In this embodiment, the first and second latch assemblies are used to realize the latching connection between the box 1 and the cover. For further satisfying the demand that the user improves box body 1 and lid connection compactness, box body 1 all is provided with screw post 110 along the both ends of its third curb plate 14, sets up the screw hole that sets up along electrical apparatus box direction of height on the screw post 110. The inner cover 2 is provided with an avoiding opening 25 corresponding to the position of the screw column 110, the outer cover 3 is provided with a connecting through hole 34 corresponding to the position of the screw column 110, and the aperture of the connecting through hole 34 is matched with that of the threaded hole. The user can be according to the demand, whether the screw needs to be adopted to further connect box body 1 and lid by oneself.

This embodiment still provides an indoor set, including above-mentioned electrical apparatus box, wherein, the structure of indoor set among the prior art can be referred to other structures of indoor set, and its key content of this application is not repeated again in this embodiment. In addition, the indoor unit provided by the embodiment adopts the electrical box, so that the convenience in installation and maintenance of the indoor unit is improved, and the production and assembly cost of the indoor unit is reduced.

The present embodiment further provides an air conditioner, including the above indoor unit, wherein other structures of the air conditioner may refer to the structure of the indoor unit in the prior art, which is not the important content of the present application, and this embodiment is not described again. In addition, the air conditioner provided by the embodiment adopts the indoor unit, so that the installation and maintenance convenience of the air conditioner is improved, and the production and assembly cost of the air conditioner is reduced.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. The utility model provides an electrical box, its characterized in that includes box body (1) and lid, box body (1) has one end opening, the lid is established the opening part of box body (1), four sides of electrical box all are provided with buckle subassembly, box body (1) with the lid passes through buckle subassembly block is connected.

2. The appliance cartridge of claim 1, wherein the snap assembly comprises:

the first buckle assembly comprises an elastic arm (42) and a first clamping protrusion (41), a first bayonet (421) clamped with the first clamping protrusion (41) is formed in the elastic arm (42), one of the elastic arm (42) and the first clamping protrusion (41) is arranged on the box body (1), and the other of the first clamping protrusion (41) and the elastic arm (42) is arranged on the cover body; and/or

The second buckle assembly comprises a second clamping projection (51) and a third clamping projection (53), the second clamping projection (51) is arranged on the cover body, the third clamping projection (53) is arranged on the box body (1), an opening is formed in the third clamping projection (53) and faces towards the clamping groove in the box body (1), and the second clamping projection (51) is clamped in the clamping groove.

3. The electrical box according to claim 2, wherein the cover comprises an inner cover (2) and an outer cover (3), the second snap assembly further comprises a second bayonet (52), the second bayonet (52) is disposed on the outer cover (3), the second snap protrusion (51) is disposed on the inner cover (2), and the second snap protrusion (51) can be simultaneously snapped with the second bayonet (52) and the third snap protrusion (53).

4. The electrical box according to claim 3, further comprising a third snap assembly, wherein the inner cover (2) and the outer cover (3) are snap-fitted through the third snap assembly, and at least two opposite sides of the cover body are provided with the third snap assembly.

5. The electrical box according to any one of claims 2 to 4, characterized in that a positioning flange (16) is convexly arranged outside the box body (1), the positioning flange (16) is lower than the opening end surface of the box body (1), and the end surface of the cover body facing the box body (1) is abutted to the positioning flange (16).

6. The electrical box according to claim 5, characterized in that the first snap projection (41) is provided on the positioning flange (16).

7. The appliance box according to claim 5, characterized in that the portion of the box body (1) higher than the positioning flange (16) forms a sealing flange (17), the sealing flange (17) being in abutment with the inner side wall of the cover.

8. The electrical box according to claim 2, characterized in that the third snap projection (53) is formed by pressing outwardly a side plate of the box body, and the box body is provided with first reinforcing ribs (18) at both sides of the third snap projection (53).

9. An indoor unit comprising an appliance box according to any one of claims 1 to 8.

10. An air conditioner characterized by comprising the indoor unit according to claim 9.

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