CN114165504A

CN114165504A - Section bar self-locking connection structure and air conditioner box body adopting same

Info

Publication number: CN114165504A
Application number: CN202111441042.5A
Authority: CN
Inventors: 王正烘; 王家桥; 陈乃道
Original assignee: Comfort Zhejiang Environmental Technology Co ltd
Current assignee: Comfort Zhejiang Environmental Technology Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-03-11
Anticipated expiration: 2041-11-30
Also published as: CN114165504B

Abstract

The invention discloses a profile self-locking connecting structure and an air conditioner box body adopting the same, and the profile self-locking connecting structure comprises box plates, profile pieces and connecting pieces, wherein each profile piece comprises a first plate body, a second plate body and a third plate body, a first bulge is arranged on the lower side of the second plate body, and when first inclined planes of the profile pieces at the end parts of two adjacent box plates are respectively contacted with two inner groove walls of a connecting groove and move towards the bottom of the connecting groove, the third plate bodies of the two profile pieces move towards each other far away from one side of the box plates until the third plate bodies are mutually attached. When the installation is connected, only need reduce the distance of section bar spare and connecting piece through fasteners such as screws on the tight section bar, just can drive two section bars on these two boxboards simultaneously and move until laminating mutually in opposite directions, realized changing the longitudinal movement of fastener into the lateral shifting process of section bar, guarantee the laminating of two boxboard tip sealed and locking, can effectively avoid the displacement of boxboard or break away from, the locking dynamics is strong, and the stability of structure is good.

Description

Section bar self-locking connection structure and air conditioner box body adopting same

Technical Field

The invention relates to the field of air conditioner boxes, in particular to a profile self-locking connecting structure and an air conditioner box adopting the same.

Background

The air conditioning box body is formed by splicing a plurality of box plate structures, and the box body is mostly applied to an air conditioning unit, because the air conditioning unit is in the processing process, the temperature difference and the air pressure difference between the inside and the outside of the air conditioning box body are large, in order to ensure the working stability of the air conditioning unit and the stability and the tightness of the air conditioning box body, the standardization degree of a manufacturer to the air conditioning box plate structure is extremely high, and the cost is optimized while a good enough cold bridge breaking effect is achieved. Some air conditioner box bodies that have now usually adopt two negative and positive seal buckles boxboard to dock and form, and the seal of two boxboards is two kinds of different structures promptly, and the manufacturing cost of producer is high, and need adopt the strainer taut at the in-process of assembling the boxboard, assembles the process loaded down with trivial details, and the operation degree of difficulty is high, and makes adjacent boxboard not coplanar easily among the taut process. And lead to the piece big, sealed effect poor again behind the loose strainer to this structure is dismantling the degree of difficulty at later stages such as rectification, maintenance very big, needs to dismantle from the end, causes follow-up rectification, maintenance degree of difficulty very big, and the structure of two negative and positive seals in addition is unable self-locking after the concatenation, assembles the gap uncontrollably for this, and sealed effect is poor.

In addition, the prior art discloses a frameless box body for an air conditioning unit (Chinese patent No. CN212132856U), the frameless box body of the invention is a hexahedral structure formed by splicing insulation boards, the insulation boards comprise an outer board and an inner board, an insulation layer is filled between the outer board and the inner board, the outer board and the inner board are connected by an aluminum-plastic composite insulation frame profile, the outer board is positioned at one side of the inner surface of the aluminum-plastic composite insulation frame profile, the inner board is positioned at one side of the outer surface of the aluminum-plastic composite insulation frame profile, the frameless box body is spliced by a plurality of insulation boards to form the frameless box body, although the frameless box body can be rapidly and repeatedly disassembled and assembled, the adjacent insulation boards are respectively provided with the aluminum-plastic composite profiles with different structures, so that an operator needs to pay attention to male-female butt joint during splicing, and when two aluminum-plastic composite profiles are spliced with a profiled bar connecting piece, the two aluminum-plastic composite profiles are only transversely spliced, and the splicing gap is not well controlled, and do not be provided with from locking structure, consequently under the effect of long-time use and other pulling forces, assemble the gap and increase gradually, sealed effect and cold bridge prevention effect are poor to later stage if need reform transform, the dismantlement of maintenance boxboard is very difficult, increases extra maintenance cost for the user.

Disclosure of Invention

The connecting structure has the function of connecting the section bars at the end parts of two adjacent box plates, avoids the displacement or separation of the box plates, has strong locking force and good structural stability, and on the other hand, when two first bulges are completely clamped and connected in the connecting groove, the third plate bodies of the section bars are mutually attached and abutted at the sides far away from the box plates, no gap exists between the two third plate bodies, the sealing performance is good, so that an operator can control the assembly gap between the two third plate bodies when installing the two adjacent box plates and the connecting piece.

The invention is solved by the following technical scheme:

a profile self-locking connecting structure is used for an air conditioner box body formed by a plurality of box plates and comprises profile pieces positioned at the end parts of the box plates and a connecting piece for connecting the profile pieces at the end parts of two adjacent box plates;

the section bar piece comprises a first plate body connected with the box plate, a third plate body perpendicular to the box plate and a second plate body, wherein two ends of the second plate body are respectively connected with the first plate body and the third plate body;

the upper portion of connecting piece is provided with the spread groove, the equal slope to two outer cell wall directions of two interior cell walls of spread groove, when the first inclined plane of two adjacent boxboard tip section bar spares respectively with the contact of two interior cell walls of spread groove and move to the tank bottom, the third plate body of two section bar spares keeps away from boxboard one side and moves until laminating mutually.

Preferably, the box plate comprises an outer wall plate and an inner wall plate which surround the profile member to form the heat insulation chamber, the profile member comprises a first profile and a second profile which are connected with each other, the first profile is connected with the outer wall plate, and the second profile is connected with the inner wall plate;

first section bar still includes the fourth plate body, first plate body one end connect perpendicularly in fourth plate body downside, the first plate body other end is connected with the second section bar, the fourth plate body is connected with the wainscot at the part that first plate body is close to thermal-insulated cavity room side, and thermal-insulated cavity one end is kept away from to the fourth plate body and third plate body is connected perpendicularly, second plate body both ends respectively with second section bar tip and third plate body end connection.

Preferably, the first plate body, the second plate body, the third plate body and the fourth plate body surround to form a reinforced cavity, a fastener is arranged in the reinforced cavity, a connecting hole for a connecting end of the fastener to pass through is formed in the second plate body, and a connecting base is arranged at the upper part of the connecting piece corresponding to the connecting hole;

when the connecting end of the fastener penetrates into the connecting base gradually through the connecting hole, the first inclined plane of the first protrusion is in contact with the inner wall of the connecting groove on the same side and moves towards the bottom of the connecting groove, and the third plate body moves towards the direction far away from the box plate.

Preferably, the lower side of the second plate body is further provided with a second protrusion, the second protrusion and the first protrusion are respectively arranged on two sides of the connecting hole and connected with the upper end of the connecting piece in an abutting mode, and the height of the second protrusion is equal to the height of the first protrusion.

Preferably, one side of the first protrusion, which is far away from the box plate, and one side of the third plate body, which is far away from the box plate, are located on the same plane.

Preferably, the second is protruding to be connected in the second plate body and is close to the below of thermal-insulated chamber tip to keep away from thermal-insulated chamber side with the lower extreme of first plate body and link to each other, the lower extreme of first plate body is provided with the third arch near thermal-insulated chamber side, the third is protruding to be relative arrangement and centre gripping with the second and forms a mounting groove, the upper end of second section bar hold and connect in the mounting groove, the bellied lower extreme of second be with connecting piece upper surface matching's plane.

Preferably, the connecting piece comprises a first connecting plate, a second connecting plate and a third connecting plate, wherein the second connecting plate and the first connecting plate are symmetrically arranged up and down, and the two ends of the third connecting plate are respectively connected with the first connecting plate and the second connecting plate;

the upper end of first connecting plate leans on with the first bellied lower extreme counterbalance of first arch and second to be connected, the upper end of first connecting plate is provided with the interval and forms the connection of spread groove is protruding, connection base is located the protruding outer groove wall side of connection, the protruding one side that is located the interior cell wall of connection sets up to the second inclined plane to keeping away from the slope of connection base direction, the second inclined plane can laminate each other with first inclined plane, connect bellied highly being less than or equal to first bellied height.

Preferably, the second plate body comprises a first bent part and a second bent part, one end of the first bent part, which is far away from the first plate body, is vertically connected with the side, which is close to the lower end of the first plate body, of the third plate body, and the second bent part is bent downwards and is connected with one end, which is close to the first plate body, of the first bent part;

the first bending part, the second bending part and the first protrusion surround to form a limiting groove, and the connecting protrusion can be located in the limiting groove.

Preferably, the first section bar is an aluminum plate, and the second section bar is a PVC plate; the first connecting plate and the second connecting plate are arranged to be aluminum plates, and the third connecting plate is arranged to be a PVC plate;

the second section bar includes the first board of moulding and connects in the first board of moulding is close to the second of thermal-insulated chamber side and moulds the board, the first lower tip of moulding the board offsets with interior wallboard and leans on being connected, the second is moulded the board and is close to the first board lower extreme of moulding and moulds a board mutually perpendicular formation draw-in groove with the first, the end connection of interior wallboard in the draw-in groove, still be provided with the centre gripping in interior wallboard and second in the draw-in groove and mould the first sealing member between the board, the first board of moulding is kept away from and is provided with the second sealing member between thermal-insulated chamber side and the second connecting plate.

The invention also discloses an air conditioner box body with the connecting structure, which comprises: a plurality of box boards which are spliced with each other; according to the profile self-locking connecting structure, the profile piece is arranged at the end part of the box plate, and the connecting piece is connected with the profile piece at the end part of two adjacent box plates and is used for fixing the two adjacent box plates.

The invention achieves the following beneficial effects: the invention discloses a sectional material self-locking connecting structure and an air conditioner box body adopting the structure, wherein the self-locking between two box plates is realized by arranging a specific sectional material piece and a connecting piece, wherein the sectional material piece comprises a first plate body connected with the box plates, a third plate body vertical to the box plates and a second plate body, two ends of which are respectively connected with the first plate body and the third plate body, a first bulge with an inclined plane is arranged at the lower side of the second plate body, and meanwhile, the connecting piece with a connecting groove matched with the first bulges on the sectional materials at two sides is arranged, so that when the two box plates are installed, the distance between the sectional material piece and the connecting piece is reduced by tightening fasteners such as screws on the sectional materials, and the two sectional materials on the two box plates can be simultaneously driven to move towards each other until the two sectional materials are mutually attached, the tighter connection between the fastening piece and the connecting piece at the lower part is, the attachment of the end parts of the two sectional materials is tighter, and the longitudinal movement of the fastening piece is converted into the transverse movement process of the sectional material, the joint sealing and locking of the end parts of the two boxboards are realized, the displacement or the separation of the boxboards can be effectively avoided, the locking force is strong, and the stability of the structure is good.

Additional aspects and detailed advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of an air conditioning cabinet disclosed in an embodiment.

FIG. 2 is a schematic diagram of the section A of FIG. 1 according to an embodiment of the disclosure.

Fig. 3 is a schematic view of two adjacent boxboards and connectors when separated according to an embodiment disclosed.

Fig. 4 is a schematic structural view of a sectional material on a box board according to an embodiment.

Fig. 5 is a schematic structural diagram of a first profile and a second profile disclosed in an embodiment.

Fig. 6 is a schematic structural diagram of a first profile disclosed in an embodiment.

Fig. 7 is a schematic structural diagram of a connector disclosed in an embodiment.

Fig. 8 is a partially cut-away schematic view of an air conditioning cabinet according to an embodiment of the disclosure.

FIG. 9 is an enlarged schematic view B of FIG. 7 according to an exemplary embodiment.

Fig. 10 and 11 are partial schematic structural views of an air conditioning cabinet disclosed in an embodiment.

FIG. 12 is a schematic diagram of the cross-section C of FIG. 9 according to an exemplary embodiment.

Fig. 13 is a schematic structural view of a third profile and a fourth profile disclosed in an embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that, in the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the reference to a first feature "on," "over" or "above" a second feature means that the first feature is directly on or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. The first feature being "under," "below," and "beneath" the second feature includes the first feature being directly under or obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 7, as an embodiment of the present invention, a profile self-locking connection structure is disclosed, which is used for an air conditioning cabinet body formed by a plurality of cabinet plates, and includes a profile 2 located at an end of a cabinet plate, and a connection member 3 connecting the profile 2 at the end of two adjacent cabinet plates, where the profile 2 includes a first plate 21 connected to the cabinet plate, a third plate 23 perpendicular to the cabinet plate, and a second plate 22 having two ends respectively connected to the first plate 21 and the third plate 23, a first protrusion 25 is disposed at a lower side of the second plate 22, the first protrusion 25 is close to a first inclined surface 251 of the cabinet plate, the first inclined surface is inclined in a direction away from the cabinet plate, a connection groove 34 is disposed at an upper portion of the connection member 3, and two inner groove walls 341 of the connection groove 34 are inclined in directions toward two outer groove walls 342. In the present embodiment and the following embodiments, "upper side", "lower side", "above" and "below" described in the box plate and the section bar 2 are all expressed with reference to the vertical direction, specifically, the vertical position as indicated by the reference numerals of the drawings. In the invention, the material of the section bar 2 connected to the end of the joint box board can be aluminum section bar or plastic section bar or aluminum-plastic composite section bar, the connecting piece 3 is mainly used for connecting the section bar of the end of two adjacent box boards, the material of the connecting piece can be aluminum section bar or plastic section bar or aluminum-plastic composite section bar, in this embodiment, the first board body 21 of the section bar 2 is vertically connected with the upper end of the box board, the third board body 23 is arranged with the first board body 21 in parallel at intervals, the second board body 22 is connected between the lower end of the first board body 21 and the third board body 23, in addition, the lower side of the second board body 22 is provided with a first bulge 25 extending from top to bottom, one side of the first bulge 25 close to the box board is provided with a first inclined plane 251, the inner 341 of the connecting groove 34 is provided with a wall surface capable of jointing with the first inclined plane 251, thereby in the process of actually connecting the section bar of two adjacent box boards and the connecting piece 3, in the inclined plane arrangement, in view of the fact that when the first protrusion 251 is installed, the first protrusion 251 is not vertically and downwardly clamped into the connecting groove 34, but is gradually clamped into the connecting groove 34 at an inclined angle, if the first protrusion 251 is a vertical plane, clamping is difficult, and even a structure is damaged, so that the first protrusion 25 is arranged on the side close to the box board as the first inclined plane 251, the first protrusion 251 is conveniently and gradually clamped into the connecting groove 34 along the direction, the installation and the disassembly are convenient, the structural design is reasonable, it should be noted that the width of the cross section of the first protrusion 251 is gradually reduced from top to bottom, and the width of the cross section of the connecting groove 34 is equal to or slightly greater than the width of the cross sections of the two first protrusions 251. Specifically, when the first inclined surfaces 251 of the two adjacent box plate end section members 2 respectively contact with the two inner groove walls 341 of the connecting groove 34 and move toward the bottom of the groove, the third plate bodies 23 of the two adjacent box plate end section members 2 move toward each other away from the box plates until they are attached to each other. In this embodiment, two adjacent box boards are spliced together along the same horizontal line, the sectional materials 2 at the ends of the two box boards gradually approach each other, so that the two first protrusions 251 gradually approach and are clamped into the connecting groove 34, the two first inclined surfaces 251 respectively contact with the two inner groove walls 341, and move towards the groove bottom along with the two first protrusions 251 until the two first protrusions 251 are completely clamped in the connecting groove 34, the connecting groove 34 has a constraint effect on the two first protrusions 251, and at the same time, the third boards 23 of the two sectional materials 2 move towards each other and are attached to each other at the sides far from the box boards, where it should be noted that the opposite movement refers to movement of the third boards 23 of one sectional material 2 and movement of the third boards 23 of the other sectional material 2 towards each other. In some existing frameless air-conditioning cabinets, two male and female sealing box plates are usually butted, namely the sealing buckles of the two box plates are of two different structures, the production cost of manufacturers is high, and a tensioner needs to be tensioned in the process of assembling the box plates, so that the labor is greatly consumed when an operator splices or disassembles the box plates, the structures of the two male and female sealing buckles cannot be self-locked after splicing, therefore, the splicing gap is uncontrollable, and the sealing effect is poor, but in the invention, the section bars 2 at the end parts of the two adjacent box plates are of one specification type, namely, the same structure, the production line can be reduced and the production process can be simplified for the manufacturers, the standardization degree is high, the difficulty of installing the box plates can be greatly reduced for the operator, the assembly and disassembly are very convenient, in addition, the invention clamps and restricts the two first bulges 25 on the section bars 2 at the end parts of the two adjacent box plates through the connecting groove 34 on the connecting piece 3, the two adjacent box plates are fixed, and the two adjacent box plates 2 and the connecting piece 3 are convenient and quick to detach and install, so that the bottleneck that the buckle-sealed box plates are not detachable is broken through. Therefore, the connecting structure has the effects of connecting and locking the section bars 2 at the end parts of the two adjacent box boards, so that the box boards are prevented from being displaced or separated, the structural stability is good, the reliability is high, on the other hand, when the two first bulges 25 are completely clamped and connected in the connecting grooves 34, the third board bodies 23 of the section bars 2 are mutually attached and abutted at the sides far away from the box boards, no gap exists between the two third board bodies 23, the sealing performance is good, and an operator can control the assembling gap between the two third board bodies 23 when installing the two adjacent box boards 2 and the connecting piece 3. When the installation is connected, only need reduce the distance of section bar spare and connecting piece through fasteners such as screws on the tight section bar, just can drive two section bars on these two boxboards simultaneously and move until laminating mutually in opposite directions, realized changing the longitudinal movement of fastener into the lateral shifting process of section bar, guarantee the laminating of two boxboard tip sealed and locking, can effectively avoid the displacement of boxboard or break away from, the locking dynamics is strong, and the stability of structure is good.

As another embodiment of the present invention, the box plate includes an outer wall plate 11 and an inner wall plate 12 surrounding a heat insulation chamber 13 with a profile member 2, the profile member 2 includes a first profile 210 and a second profile 220 connected to each other, the first profile 210 is connected to the outer wall plate 11, and the second profile 220 is connected to the inner wall plate 12. In the invention, the box plate is mainly formed by assembling the inner and outer wall plates and the section bar pieces 2, and a transition section bar used for connecting the inner and outer wall plates and the section bar pieces 2 is not arranged, so that the production cost of manufacturers is saved, the structure of the box plate is simplified, compared with some air-conditioning boxes in the current market, the box plate which is mainly made of single wall plates is adopted by the manufacturers, therefore, the condensation preventing effect, the heat insulating property and the reliability are poor, and the invention not only overcomes the problem of high production cost, but also improves the effect of a cold bridge of the box body. The first section bar 210 further comprises a fourth plate body 24, one end of the first plate body 21 is vertically connected to the lower side of the fourth plate body 24, the other end of the first plate body 21 is connected with the second section bar 220, the portion, close to the heat insulation chamber 13, of the fourth plate body 24 is connected with the outer wall plate 11, one end, far away from the heat insulation chamber 13, of the fourth plate body 24 is vertically connected with the third plate body 23, and two ends of the second plate body 22 are respectively connected with the end portion of the second section bar 220 and the end portion of the third plate body 23. In this embodiment, the third plate 23 is parallel to the first plate 21 in a direction away from the heat insulation chamber 13, the fourth plate 24 is vertically connected between the upper end of the first plate 21 and the upper end of the third plate 23, and when the two adjacent box end section members 2 are parallel connected, the fourth plate 24 of the first box and the fourth plate 24 of the second box are along the same plane, and in addition, the second box 22 and the second section 220 of the first box and the second box 22 and the second section 220 of the second box surround to form a chamber space, the size of the chamber space is slightly larger than that of the connecting member 3, so as to allow the connecting member 3 to be installed and accommodated, and the lower end of the connecting member 3 and the inner wall 12 are substantially in the same plane. Therefore, the connecting piece 3 can connect two adjacent box boards and can be hidden in the cavity space, the structural arrangement is reasonable, the overall attractiveness is good, and the space utilization rate is high.

As another embodiment of the present invention, a reinforcing cavity 26 is formed by the first plate 21, the second plate 22, the third plate 23 and the fourth plate 24, a fastening member 27 is disposed in the reinforcing cavity 26, a connecting hole for passing a connecting end of the fastening member 27 is disposed on the second plate 22, and a connecting base 35 is disposed on the upper portion of the connecting member 3 corresponding to the connecting hole 207. In this embodiment, the first plate 21, the second plate 22, the third plate 23 and the fourth plate 24 are vertically connected at the head and tail ends to form a rectangular reinforcing cavity 26, the structure is stable and firm, the fastening member 27 can be a fastening structure such as a bolt or a screw, the fastening member 27 can vertically penetrate through the connecting hole of the second plate 22, and the lower connecting end of the fastening member 27 abuts against the upper end surface of the second plate 22, and similarly, the connecting base 35 may be a base structure such as a nut, and the middle of the connecting base 35 has a mounting through hole for the fastening member 27 to connect, in the actual installation process, the connection base 35 vertically penetrates through the base hole at the upper end of the connecting piece 3, and fixedly connected with the base hole, when the connecting end of the fastening piece 27 gradually penetrates into the connecting base 35 through the connecting hole, the first inclined surface 251 of the first protrusion 25 contacts the same side inner wall of the connecting groove 34 and moves toward the bottom of the groove and the third plate 23 moves away from the box plate. Therefore, the present invention not only clamps and restrains the first protrusion 25 and the connection groove 34, but also has double fixing function by the installation of the fastener 27 and the connection base 35, thereby further enhancing the structural stability. In addition, under the condition that the first inclined surface 251 and the inner groove wall 341 on the same side are attached to each other, the distance from the axis of the connecting hole to the first inclined surface 251 is equal to the distance from the axis of the mounting through hole to the inner groove wall 341, in other words, when the first protrusion 25 is not completely clamped in the connecting groove 34, the fastening member 27 and the connecting base 35 cannot be completely connected, and only when the first protrusion is clamped in place in the connecting groove 34, the fastening member 27 and the connecting base 35 can be connected in a matched manner, so that the connection between the first protrusion 25 and the connecting groove 34 is further verified and ensured, and the reliability is high.

As another embodiment of the present invention, the lower side of the second plate 22 is further provided with a second protrusion 28, the second protrusion 28 and the first protrusion 25 are respectively disposed at two sides of the connecting hole and connected against the upper end of the connecting member 3, and the height of the second protrusion 28 is equal to the height of the first protrusion 25. Specifically, the first protrusion 25 is disposed below the end of the second board body 22 close to the third board body 23, when the upper end of the connecting element 3 abuts against the lower end of the second protrusion 28, the upper end of the connecting element also abuts against the lower end of the first protrusion 25, for this reason, the second protrusion 28 has an effect of limiting the connecting element 3 from moving upwards excessively, on the other hand, the second protrusion 28 and the first protrusion 25 are arranged oppositely, the stability when the connecting element 3 is connected is stronger, and the connecting element 3 is prevented from inclining towards both sides to cause the connection between the first protrusion 25 and the connecting groove 34 not to be in place. In other embodiments, the side of the first protrusion 25 away from the box board and the side of the third board body 23 away from the box board are located on the same plane, the side of the first protrusion 25 away from the box board of the first box board is arranged opposite to the first inclined plane 251, and when the side of the first protrusion 25 away from the box board of the first box board and the side of the first protrusion 25 away from the box board of the second box board are mutually attached, the side of the third board body 23 away from the box board of the first box board and the side of the third board body 23 away from the box board of the first box board are also mutually attached, so that the assembling gap is controllable, and the sealing performance is good.

As another embodiment of the present invention, the second protrusion 28 is connected to the lower portion of the end portion of the second plate 22 close to the insulating chamber 13, and is connected to the lower end of the first plate 21 far from the insulating chamber 13, the lower end of the first plate 21 close to the insulating chamber 13 is provided with a third protrusion 29, the third protrusion 29 and the second protrusion 28 are oppositely arranged and clamped to form a mounting groove 209, the upper end of the second section bar 220 is accommodated and connected in the mounting groove 209, and the lower end of the second protrusion 28 is a plane matched with the upper surface of the connecting member 3. In the present embodiment, the second protrusion 28 not only has the above-mentioned function, but also forms the mounting groove 209 with the third protrusion 29 to connect the upper end of the second section bar 220, in other embodiments, the lower end of the third protrusion 29 is provided with a first extension plate 291 near the side of the thermal insulation chamber 13, the second section bar 220 is provided with a second extension plate 292 near the side of the thermal insulation chamber, the second extension plate 292 is bent to the upper end of the first extension plate 291 around the lower end of the first extension plate 291 in the direction near the thermal insulation chamber 13, and the first extension plate 291 and the second extension plate 292 can be embedded in the foam body of the thermal insulation chamber 13 to strengthen the connection between the second section bar 220 and the first section bar 210. It should be noted that, in this embodiment, the lower end surface of the second protrusion 28 is a plane, and correspondingly, the upper surface of the connecting element 3 is also a plane that can be attached to the second protrusion 28, and of course, in other embodiments, the lower end surface of the second protrusion 28 may also be an inward-concave arc surface, an outward-convex arc surface, or an inclined surface, and correspondingly, the upper surface of the connecting element 3 may also be an outward-convex arc surface, an inward-concave arc surface, or an inclined surface that can be attached to the second protrusion 28, so as to ensure the smoothness of connection between the lower end of the second protrusion 28 and the upper surface of the connecting element 3, and the connection is tight and has better stability.

As another embodiment of the present invention, the connector 3 includes a first connecting plate 31, a second connecting plate 32 arranged vertically symmetrically to the first connecting plate 31, and a third connecting plate 33 connected at both ends to the first connecting plate 31 and the second connecting plate 32, respectively, the first connecting plate 31, the second connecting plate 32, and the third connecting plate are connected to each other and surround to form a hollow chamber, and a lower portion of the connecting base 35 can be located in the hollow chamber. Specifically, the upper end of the first connecting plate 31 abuts against and is connected with the lower ends of the first protrusion 25 and the second protrusion 28, the upper end of the first connecting plate 31 is provided with connecting protrusions 311 forming the connecting groove 34 at intervals, the connecting base 35 is located on the outer groove wall 342 side of the connecting protrusions 311, the inner groove wall 341 of the connecting protrusions 311 is set as a second inclined surface inclined towards the direction away from the connecting base 35, the second inclined surface and the first inclined surface 251 can be attached to each other, and the height of the connecting protrusions 311 is less than or equal to the height of the first protrusion 25. In this embodiment, the connecting protrusion 311 is located at the middle position of the first connecting plate 31, the cross-sectional width of the connecting protrusion 311 gradually increases from top to bottom, and the inner groove wall 341 of the connecting protrusion 311 is configured as a second slope, so that in the actual process of connecting the two adjacent box board end section members and the connecting member 3, such slope configuration is considered that the first protrusion 251 is not vertically clamped downwards into the connecting groove 34, but is gradually clamped into the connecting groove 34 at an inclined angle to ensure the installation fluency and stability.

As another embodiment of the present invention, the second board 22 includes a first bending portion 2211 and a second bending portion 2212, one end of the first bending portion 2211 away from the first board 21 is vertically connected to the lower end of the third board 23 close to the first board 21, the second bending portion 2212 is bent downward and is connected to one end of the first bending portion 2211 close to the first board 21, and in addition, the first bending portion 2211, the second bending portion 2212 and the first protrusion 25 form a limiting groove 2213 around the connecting protrusion 311, and the connecting protrusion 311 can be located in the limiting groove 2213. Therefore, the groove profile of the limiting groove 2213 is larger than the profile size of the connecting protrusion 25, and when the connecting protrusion 311 is located in the limiting groove 2213, the side of the connecting protrusion 311 away from the connecting groove 34 can abut against the side of the second bending portion 2212 away from the reinforcing cavity 26, so that the connecting protrusion 311 is prevented from being displaced in an excessively large range, and the limiting groove 2213 has limiting and restraining effects on the connecting protrusion 311. In other embodiments, the lower end surface of the fastening member 27 may be connected to the first bent portion 2211 or the second bent portion 2212 in an abutting manner, so as to improve the bearing strength of the first bent portion 2211 or the second bent portion 2212 on the fastening member 27.

As another embodiment of the present invention, the first profile 210 is configured as an aluminum plate, and the second profile 220 is configured as a PVC plate (polyvinyl chloride); first connecting plate 31 and second connecting plate 32 set up to aluminum plate, and third connecting plate 33 sets up to PVC board (polyvinyl chloride), and in other implementations, the material of first section bar 210, first connecting plate 31 and second connecting plate 32 can also be sheet metal such as copper, steel sheet, and the material of second section bar 220 and third connecting plate 33 can also be other substitute sheet materials that have thermal-insulated heat preservation effect. Because the rigidity intensity of PVC section bar is poor, but thermal-insulated effectual, and sheet metal's rigidity intensity is good, but because sheet metal's heat transfer performance is strong, the thermal current is intensive, and under the big condition of box 1 inside and outside difference in temperature, very easily appear the phenomenon of cold bridge to adopt the compound concatenation of these two kinds of section bars, can guarantee the stability of structure, again can completely cut off the heat transfer between the metal plate body, it is effectual to cut off the cold bridge. Specifically, the second profile 220 includes a first plastic plate 221 and a second plastic plate 222 connected to the first plastic plate 221 near the side of the heat insulation chamber 13, a lower end of the first plastic plate 221 abuts against and is connected to the inner wall plate 12, the second plastic plate 222 is near the lower end of the first plastic plate 221 and perpendicular to the first plastic plate 221 to form a slot 223, an end of the inner wall plate 12 is connected to the slot 223, a first sealing member 2231 clamped between the inner wall plate 12 and the second plastic plate 222 is further disposed in the slot 223, and a second sealing member 2232 is disposed between the side of the first plastic plate 221 far from the heat insulation chamber 13 and the second connecting plate 32, wherein the first sealing member 2231 is mainly used for sealing a splicing gap between the inner wall plate 12 and the first plastic plate 221, and the second sealing member 2232 is mainly used for sealing the splicing gap between the first plastic plate 221 and the connecting member 3, thereby blocking the problems of internal and external air leakage and cold leakage.

As another embodiment of the invention, the invention also discloses an air-conditioning box body adopting the structure, which comprises a plurality of box bodies 1 which are spliced with each other and the profile self-locking connecting structure, wherein the profile piece 2 is arranged on the end part of the box plate, and the connecting piece 3 is connected with the profile piece 2 at the end part of two adjacent box plates and fixes the two adjacent box plates.

As shown in fig. 8-13, as an embodiment of the present invention, the box board in any of the above embodiments is configured as a first box board 4, and further includes a second box board 5 and a third box board 6 which are vertically connected with the first box board 4, wherein the three box boards are vertically connected to form one corner of the air conditioning box body, and are vertically connected with other first box boards 4, second box boards 5 and third box boards 6 to form an integral air conditioning box body. The end parts of the first box board 4, the second box board 5 and the third box board 6 are all provided with profiles for splicing two adjacent box boards, and because the splicing of the two adjacent profiles can have gaps, each profile is provided with a sealing strip for isolating wind so as to ensure the sealing property between the two adjacent profiles, wherein the profile on the first end part of the first box board 4 is provided with a first sealing strip 41, the profile on the fourth end part of the second box board 5 is provided with a fourth sealing strip 51, the profile on the second end part of the third box board 6 is provided with a second sealing strip 61 parallel to the first sealing strip 41, the profile on the third end part of the third box board 5 is provided with a third sealing strip 62 parallel to the fourth sealing strip 51, therefore, when the first box board 4, the second box board 5 and the third box board 6 are vertically connected with each other, the first sealing strip 41 is vertically connected with the fourth sealing strip 51 and forms a first sealing channel, the second sealing strips 61 are vertically connected with the third sealing strips 62 to form a second sealing channel, when a plurality of box boards are vertically connected to form an integral air conditioning box body, the plurality of first sealing strips 41 are vertically connected with the plurality of fourth sealing strips 51 to form a closed-loop first sealing channel, and the plurality of second sealing strips 61 are vertically connected with the plurality of third sealing strips 62 to form a closed-loop second sealing channel. It should be noted that the second sealing member 2232 in any of the above embodiments includes the first sealing strip 41, the sixth sealing strip 42, the fourth sealing strip 51, and the fifth sealing strip 52. The sealing strips of some existing air-conditioning boxes are only used for sealing between the box boards and the profiles, although air can be prevented from entering the box boards, when two adjacent profiles are spliced, gaps are formed at the splicing positions, so that air inside and outside the air-conditioning boxes can flow in a convection mode from the splicing gaps, and a cold bridge phenomenon is easy to occur. Therefore, when a plurality of box plates are vertically connected to form an integral air-conditioning box body, the plurality of first sealing strips 41 and the plurality of fourth sealing strips 51 are vertically connected to form a closed-loop first sealing channel, the plurality of second sealing strips 61 and the plurality of third sealing strips 62 are vertically connected to form a closed-loop second sealing channel, and through the closed-loop sealing channel, gaps do not exist between adjacent sealing strips in the integral air-conditioning box body, the problems of internal and external air leakage and cold leakage can be effectively solved, the cold bridge breaking effect of the air-conditioning box body is greatly improved, and the double-closed-loop sealing channel is arranged, so that double-sealing guarantee is achieved, and the integral sealing performance is improved.

As another embodiment of the present invention, the sixth end section of the first box panel 4 is provided with a sixth sealing strip 42, the fifth end section of the second box panel 5 is provided with a fifth sealing strip 52 parallel to the sixth sealing strip 42, further, the end of the sixth sealing strip 42 is perpendicularly connected to the end of the first sealing strip 41, the end of the fifth sealing strip 52 is perpendicularly connected to the end of the fourth sealing strip 51, and the end of the third sealing strip 62 is perpendicularly connected to the end of the second sealing strip 61. In this embodiment, the end profiles of the first box board 4, the second box board 5 and the third box board 6 are respectively provided with two sealing strips, and the ends of the sealing strips on each box board are connected perpendicularly to each other, so that for the single first box board 4, the second box board 5 and the third box board 6, the ends of the sealing strips are connected perpendicularly to each other, on one hand, the structural stability of the sealing strips can be enhanced, on the second hand, a closed-loop sealing channel is also formed, and for the integral air conditioning box body, the ends of the sealing strips on the single box board are connected perpendicularly to each other to form a closed-loop sealing channel, so that the sealing strips are sealed along a complete air channel on the air conditioning box body instead of sealing of a partial air channel, and the air conditioning box body is reasonable in structural design and stronger in wind resistance.

As another embodiment of the present invention, the side of first weather strip 41 closer to fourth weather strip 51 abuts against the side of fifth weather strip 52 remote from the end of fourth weather strip 51, and the side of fifth weather strip 52 closer to second weather strip 61 abuts against the side of third weather strip 62 remote from second weather strip 61. In this embodiment, when a plurality of box boards are vertically connected to form an integral air conditioning box body, the upper end of the fifth sealing strip 52 abuts against the first sealing strip 41, and the upper end surfaces of the first sealing strip 41 and the fourth sealing strip 51 are in the same plane; the lower position of the fifth sealing strip 52 close to the upper end is connected to the third sealing strip 62 in an abutting manner, the upper end surfaces of the second sealing strip 61 and the third sealing strip are located on the same plane, the side of the second sealing strip 61 far from the third sealing strip 62 and the side of the fifth sealing strip 52 far from the third sealing strip 62 are located on the same plane, it should be noted that in this embodiment and the following embodiments, "upper side", "lower side", "upper side" and "lower side" described in the sealing strips are all expressed by taking the vertical direction as a reference, and specifically, the upper position and the lower position are marked as shown in the drawings. As another embodiment of the present invention, the side of the first sealing strip 41 abutting against the fifth sealing strip 52 and the side of the second sealing strip 61 away from the third sealing strip 62 are in the same plane, and the side of the third sealing strip 62 abutting against the fifth sealing strip 52 and the side of the fourth sealing strip 51 away from the sixth sealing strip 42 are in the same plane, so that the sealing engagement is better. In addition, when the actual air flows in the air conditioning box body, the second sealing strips 61, the third sealing strips 62 and the fifth sealing strips 52 are closer to the inside of the air conditioning box body, so that the air flows preferentially along the inner end surfaces of the three sealing strips, because the plurality of second sealing strips 61 are vertically connected with the plurality of third sealing strips 62 to form a closed second sealing channel, the air flow inside and outside is isolated, certainly, some air flows upwards from the position where the fifth sealing strips 52 abut against the third sealing strips 62, because the plurality of first sealing strips 41 are vertically connected with the plurality of fourth sealing strips 51 to form a closed first sealing channel, the air flow inside and outside is further isolated, and similarly, when the external air flows to the air conditioning box body, the external air is also isolated by the first sealing channel and the second sealing channel, and the effect of a cold bridge is effectively achieved.

As another embodiment of the invention, the profile of the first or sixth end is provided as a first profile structure 71, the profile of the fourth or fifth end is provided as a second profile structure 72, and the profile of the second or third end is provided as a third profile structure 73, and further wherein the first sealing strip 41 is connected between the first profile structure 71 and the third profile structure 72, and the second sealing strip 61 is located below the first sealing strip 41 and connected between the third profile structure 73 and the inner wall panel of the first box panel 4. In other embodiments, the fourth sealing strip 51 is connected between the first profile structure 71 and the third profile structure 73, the third sealing strip 62 is located below the fourth sealing strip 51 and is connected between the third profile structure 73 and the inner wall panel of the second box panel 5; the sixth sealing strip 42 is connected between the second profile structure 72 and the third profile structure 73, and the fifth sealing strip 52 is located inside the sixth sealing strip 42 close to the second sealing strip 61 and connected between the second profile structure 72 and the inner wall panel of the first box panel 4. Therefore, when a plurality of box plates are vertically connected to form an integral air-conditioning box body, the sealing strips on the first box plate 1, the second box plate 2 and the third box plate 3 are all clamped between two adjacent profile structures to partition an air duct between the profile structures, the first sealing strip, the fourth sealing strip and the sixth sealing strip are far away from a cavity of the air-conditioning box body and mainly partition airflow and wind flow entering the cavity of the box body from the outside, and the second sealing strip, the third sealing strip and the fifth sealing strip are close to the cavity of the air-conditioning box body and mainly partition the airflow and the wind flow from the inside of the cavity of the box body to the outside. It should be noted that in the present embodiment, the first profile structure 71 and the second profile structure 72 are the profile elements 2 in any of the above embodiments.

As another embodiment of the present invention, the first box board 4 or the second box board 5 includes an outer wall board 11 and an inner wall board 12, the first profile structure 71 or the second profile structure 72 includes a first profile 210 connected to the outer wall board 11, and a second profile 220 connected to the inner wall board 12, one end of the second profile 220 near the outer wall board 11 is connected to a lower end side of the first profile 210 away from the outer wall board 11, and one end of the second profile 220 away from the outer wall board 12 is connected to the inner wall board 11. As another embodiment of the present invention, the third box board 6 comprises a second outer wall board 110 and a second inner wall board 120, the third profile structure 73 comprises a third profile 230 connected to the second outer wall board 110, and a fourth profile 240 connected to the second inner wall board 120, wherein one end of the fourth profile 240 near the second outer wall board 110 is connected to the lower end of the third profile 230 far from the second outer wall board 110, and one end of the fourth profile 240 far from the second outer wall board 110 is connected to the second inner wall board 120. It should be noted that, in the present invention, the first section bar 210 and the third section bar 230 are made of aluminum plates, or metal plates such as steel plates or copper plates, and since the metal plates have strong heat transfer performance and dense heat flow, and under the condition of large temperature difference inside and outside the box body, the cold bridge phenomenon is easily generated, so as to block heat transfer or reduce heat transfer, and the cold bridge effect can be effectively achieved, the second section bar 220 and the fourth section bar 240 in the present invention are PVC (polyvinyl chloride) section bars, and in other embodiments, they can be other substitute section bars with heat insulation effect, because the PVC section bars have poor rigidity strength, but good heat insulation effect, and the metal plate has good rigidity strength, but fast heat transfer speed, so that the composite splicing of the two section bars can be adopted, which can not only ensure the stability of the structure, but also isolate the heat transfer between the metal plates. In addition, the first box board 4 or the second box board 5 is mainly formed by assembling an inner wall board, an outer wall board and a section bar, and a transition section bar used for connecting the inner wall board and the outer wall board with the section bar is not arranged, so that the production cost of manufacturers is saved, the structure of the box board is simplified, and compared with the box board with a single wall board which is adopted by some air conditioner boxes in the current market, the invention has the advantages of poor condensation prevention effect and poor heat insulation performance, and the invention not only overcomes the problem of high production cost, but also improves the effect of a cold bridge of the box body.

As another embodiment of the present invention, the upper end of the second profile 210 is provided with a first sealing strip 41 or a sixth sealing strip 42 or a fourth sealing strip 51 or a fifth sealing strip 52, and the side of the fourth profile 240 away from the chamber of the third box panel 6 is provided with a second sealing strip 61 or a third sealing strip 62. Further, in the third box board 6 and the first box board 4 or the second box board 5 which are connected perpendicularly to each other, the lower end of the third profile 230 abuts against and is connected with the first sealing strip 41 or the sixth sealing strip 61 or the fourth sealing strip 51 or the fifth sealing strip 52, the side of the first inner wall board 12 away from the first outer wall board 11 abuts against and is connected with the second sealing strip 61 or the third sealing strip 62, and in some specific embodiments, the cross-sectional length of the third profile 230 away from the chamber side of the third box board 6 is equal to the cross-sectional length of the first profile away from the first outer wall board 11. Therefore, in the present invention, the first profile 210 and the second profile 220 are connected to each other and fixed to the first outer wall panel 11 and the first inner wall panel 12, respectively, to seal the cavity of the first box panel 4 or the second box panel 5, and the first profile 210 and the second profile 220 are connected to the third profile 230 and the fourth profile 240, respectively, to fix the two adjacent box panels, and when the profiles are connected to each other, the lower end of the third profile 230 abuts against the first sealing strip 41 or the sixth sealing strip 61 or the fourth sealing strip 51 or the fifth sealing strip 52, and the side of the first inner wall panel 12 away from the first outer wall panel 11 abuts against the second sealing strip 61 or the third sealing strip 62, thereby sealing the joint gap between the two adjacent box panels.

As another embodiment of the present invention, the second profile 220 or the fourth profile 240 includes a first plastic plate 221 and a second plastic plate 222, the first plastic plate 221 is connected to the first inner wall plate 12 or the second inner wall plate 120 perpendicularly near the first inner wall plate 12 or the second inner wall plate 120, the second plastic plate 222 is connected to the first plastic plate 221 perpendicularly in parallel with the first inner wall plate 12 or the second inner wall plate 120, and is connected to the first plastic plate 221 to form a slot 223, the first inner wall plate 12 is connected to the slot 223, and a sealing plate is further disposed in the slot 223 and clamped between the second plastic plate 222 and the first inner wall plate 12 or the second inner wall plate 120, where the sealing plate is the first sealing member 2231 in any of the above embodiments. Therefore, in the present invention, the second section bar 220 and the fourth section bar 240 are both of a specification type, the structure is simple, the standardization level is high, the production line and the production process can be reduced for manufacturers, the difficulty of installing the boxboard can be greatly reduced for operators, and the assembly is convenient. In addition, the sealing sheet is disposed in the locking groove 223 for mainly sealing the gap between the second plastic plate 222 and the first inner wall plate 12 or the second inner wall plate 120, so as to prevent air flow and wind flow from entering the cavity of the box plate. In other embodiments, a second fastener 25 is provided, the second fastener 25 may be a bolt, a stud or the like fastening connection, the third profile 230 is provided with a second connecting channel through the side of the third box plate 6 facing away from the chamber, the first section bar 210 is provided with a first connecting channel at the side far away from the first outer wall plate 11, the first connecting channel and the second connecting channel are correspondingly communicated for installing the second fastener 25, in the case where the third box plate 6 and the first box plate 4 or the second box plate 5, which are coupled to each other perpendicularly, are coupled, the second fastening member 25 is coupled through the first coupling passage into the second coupling passage, the second fastening member 25 can further fix the third box panel 6 and the first box panel 4 or the second box panel 5 which are vertically connected to each other, with the reinforced structure stability, the structure is firm and long service life, avoids the not hard up or separation between the boxboard.

In addition, in other embodiments, a fourth protrusion 231 is vertically disposed on the side of the third section bar 230 away from the cavity of the third box board 6, a fifth protrusion 232 is disposed on the lower end of the third section bar 230 away from the cavity of the third box board 6, and when the first box board 4 or the second box board 5 is vertically connected to the third box board 6, the fourth protrusion 231 is accommodated and/or connected in the limiting groove 2213, the lower end surface of the fifth protrusion 232 abuts against the upper end surface of the first plastic board 221, and the fifth protrusion 232 abuts against and is connected to the side of the second protrusion 28 away from the cavity of the third box board 6 and the side of the second protrusion 28 away from the first outer wall board 11, so that the fifth protrusion 232 has a supporting function, and prevents the third section bar 230 from moving downward, so that the stability is better, and the distance from the upper end of the third board 23 to the lower end of the second protrusion 28 is equal to the distance from the upper end of the lower end 232 of the second outer wall board 110 to the lower end of the fifth protrusion 232.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims

1. The utility model provides a section bar auto-lock compact connection structure for the air conditioner box that constitutes by a plurality of boxboards, its characterized in that: the connecting piece is used for connecting the section pieces at the end parts of the two adjacent box plates;

2. The profile self-locking connection structure according to claim 1, wherein: the box plate comprises an outer wall plate and an inner wall plate which surround profile pieces to form a heat insulation chamber, the profile pieces comprise a first profile and a second profile which are connected with each other, the first profile is connected with the outer wall plate, and the second profile is connected with the inner wall plate;

3. The profile self-locking connection structure according to claim 2, wherein: the first plate body, the second plate body, the third plate body and the fourth plate body surround to form a reinforcing cavity, a fastening piece is arranged in the reinforcing cavity, a connecting hole for a connecting end of the fastening piece to pass through is formed in the second plate body, and a connecting base is arranged at the upper part of the connecting piece corresponding to the connecting hole;

4. The profile self-locking connection structure according to any one of claims 1 to 3, wherein: the lower side of the second plate body is further provided with a second bulge, the second bulge and the first bulge are respectively arranged on two sides of the connecting hole and connected with the upper end of the connecting piece in an abutting mode, and the height of the second bulge is equal to the height of the first bulge.

5. The profile self-locking connection structure according to claim 4, wherein: one side, away from the boxboard, of the first bulge and one side, away from the boxboard, of the third board body are located on the same plane.

6. The profile self-locking connection structure according to claim 5, wherein: the second is protruding to be connected in the below that the second plate body is close to thermal-insulated chamber tip to keep away from thermal-insulated chamber side with the lower extreme of first plate body and link to each other, the lower extreme of first plate body is provided with the third arch near thermal-insulated chamber side, the third arch is relative arrangement and centre gripping formation mounting groove with the second arch, the upper end of second section bar hold and connect in the mounting groove, the bellied lower extreme of second is for the plane with connecting piece upper surface matching.

7. The profile self-locking connection structure according to claim 5 or 6, wherein: the connecting piece comprises a first connecting plate, a second connecting plate and a third connecting plate, wherein the second connecting plate and the first connecting plate are vertically and symmetrically arranged, and the two ends of the third connecting plate are respectively connected with the first connecting plate and the second connecting plate;

8. The profile self-locking connection structure according to claim 7, wherein: the second plate body comprises a first bent part and a second bent part, one end of the first bent part, which is far away from the first plate body, is vertically connected with the side, which is close to the lower end of the first plate body, of the third plate body, and the second bent part is bent downwards and is connected with one end, which is close to the first plate body, of the first bent part;

9. The profile self-locking connection structure according to claim 8, wherein: the first section bar is set to be an aluminum plate, and the second section bar is set to be a PVC plate; the first connecting plate and the second connecting plate are arranged to be aluminum plates, and the third connecting plate is arranged to be a PVC plate;

10. The utility model provides an adopt air conditioner box of this structure which characterized in that includes:

a plurality of box boards which are spliced with each other;

the profile self-locking connecting structure as claimed in any one of claims 1 to 9, wherein the profile members are provided on the ends of the box plates, and the connecting member is connected to the profile members at the ends of two adjacent box plates and fixes the two adjacent box plates.