Broken cold bridge air conditioner box body

Abstract

The utility model belongs to the technical field of air conditioner box bodies, and particularly relates to a cold-bridge-broken air conditioner box body which solves the problems that cold bridges exist between the inner face and the outer face of a box body, and the heat preservation and insulation effect is poor. The broken cold bridge air conditioner box body comprises frames and broken cold bridge heat preservation box plates, the heat preservation box plates are fixedly connected between the frames to form a box body structure, the frames comprise edge beams used for forming a rectangular frame body in an enclosing mode, the edge beams are detachably and fixedly connected through three-way plug pins, and the three-way plug pins are fixedly connected with the frame. The boundary beam and the inner and outer metal plates of the heat preservation box plate are detachably connected through a heat insulation profile, a first sealing heat insulation cushion layer is arranged between the boundary beam and the heat preservation box plate, and a cold bridge breaking structure is arranged between the outer side face and the inner side face of the boundary beam. The effects of cold bridge breaking, low ventilation rate, good heat preservation effect and high box body structural strength are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air-conditioning boxes, and particularly relates to a cold-bridge air-conditioning box. Background Art

[0002] For combined air conditioners, the performance of the air conditioning box outside the functional parts is particularly important. It must have high strength, low box air leakage rate and strong thermal insulation ability to protect the internal functional parts and prevent the treated air from being affected by the outside.

[0003] The existing air conditioner boxes are mainly frameless and framed. The frameless air conditioner box is formed by overlapping the profiles around the box panels in planes and at right angles, but the air conditioner box with this structure is generally weak and not suitable for occasions with large air volume and air pressure. The framed air conditioner box first overlaps a box frame with the profile frame, and then installs the box panels on the six surfaces of the frame to form a closed box.

[0004] At present, some traditional framed air-conditioning boxes are unable to effectively break the cold (heat) bridge. There are or too many direct connections made of metal or high thermal conductivity materials between the inside and outside of the box, resulting in high thermal conductivity and poor insulation effect. In addition, some air-conditioning boxes are not well sealed, and the air leakage rate cannot be guaranteed, which can easily cause air pollution inside the box. Moreover, the low-temperature air inside is easily condensed when blown onto the outside of the box, affecting the service life. Utility Model Content

[0005] The utility model aims to solve the above problems in the prior art and proposes a cold-bridge air-conditioning box.

[0006] In order to realize the innovation purpose of the utility model, the following technical scheme can be adopted: a cold-bridge air-conditioning box body, comprising a frame and a cold-bridge-breaking insulation box board, the insulation box board is fixedly connected between the frames to form a box structure, the frame comprises side beams for enclosing a rectangular frame, the side beams are detachably fixedly connected by three-way pins, the side beams and the inner and outer plates of the insulation box board are detachably connected by insulation profiles, a first sealing and insulation pad layer is provided between the side beams and the insulation box board, and a cold-bridge-breaking structure is provided between the outer side and the inner side of the side beam.

[0007] The cold-bridge air-conditioning box of the utility model is formed into a rectangular box structure by splicing a frame and an insulation box plate. The cavity formed in the box can be used to install internal functional parts of the air conditioner. The frame is equivalent to the edges of the rectangle, and the insulation box plate is equivalent to the faces of the rectangle. The frame is specifically composed of strip side beams, and three-way pins are arranged at the ends of the side beams, which are equivalent to the top angles of the rectangle, so as to realize detachable fixation between adjacent side beams, and have good structural strength as a whole. The insulation box plate is of the cold bridge type, that is, there is no direct metal contact between the inner plate and the outer plate, and there is no cold bridge between them, which cuts off direct heat transfer. The inner plate and the outer plate are fixed by the insulation profile, and the insulation profile is connected to the side beam at the same time to achieve the connection and fixation between the side beam and the insulation box plate; a first sealing insulation cushion layer is also provided between the side beam and the insulation box plate, which is used for sealing and fixing on the one hand to reduce the air leakage rate, and on the other hand to have a heat insulation effect to reduce the conduction of heat; and a cold bridge structure is provided between the inner and outer profiles of the side beam to cut off the direct conduction of heat; the above structure enables the air-conditioning box body to have a strong insulation capacity and a low air leakage rate, and condensation is not easy to occur on the outside of the box body. In addition, the components are detachably connected, which is convenient for disassembly and assembly.

[0008] In the above-mentioned cold-bridge air-conditioning box, the side beam includes a first profile and a second profile in the shape of a straight rod and an L-shaped cross-section, the first profile is located on the outside, the second profile is located on the inside, and a first hollow portion is formed therebetween, the first profile and the second profile are fixedly connected by a cold-bridge structure, the cold-bridge structure includes a first insulation strip, and the thermal insulation box panel and the inner side of the second profile are smoothly connected.

[0009] The L-shaped first profile and the second profile are stacked in the same direction, the second profile is on the inner side of the first profile, that is, its inner side faces the cavity of the box body, and the first profile and the second profile are fixedly connected by a first insulation strip, which is made of insulation material and has low heat conduction efficiency. In addition, the connection between the insulation box board and the inner side of the side beam is smooth, without steps, which reduces dust accumulation and facilitates the installation of internal functional parts and cleaning of the box body.

[0010] In the above-mentioned cold bridge air-conditioning box body, the side of the insulation box panel is stepped, the side beam is butt-matched with the step surface of the side of the insulation box panel, and the first sealing and thermal insulation pad layer includes rubber-plastic sealing cotton with glue arranged between the outer side of the first profile and the insulation box panel and between the outer side of the second profile and the insulation box panel.

[0011] The sides of the insulation box board and the side beam are stepped to fit each other, wherein adhesive sealing rubber-plastic cotton is provided between the outer side of the first profile and the inner side of the second profile and the step surface of the insulation box board. The adhesive sealing rubber-plastic cotton has adhesive on both sides to achieve sealing and fixation between the side beam and the insulation box board. Of course, similar suitable materials can also replace the rubber-plastic cotton.

[0012] In the above-mentioned cold bridge air-conditioning box, the three-way pin is located at the top corner of the box structure, including a base and three mutually perpendicular first elongated bodies arranged on the base, and the first elongated bodies are inserted in the first hollow portion; the first elongated bodies are fixed with sealing ribs, and the sealing ribs are tightly fitted with the inner side of the first profile and the outer side of the second profile in an interference fit manner.

[0013] The three-way pin is provided with three mutually perpendicular first elongated bodies, the cross-sectional shape of the first elongated bodies is adapted to the cross-sectional shape of the first hollow portion, and sealing ribs are provided on the first elongated bodies, which are tightly fitted with the inner and outer sides of the first hollow portion in an interference fit manner, have good sealing properties, and have a good fixing effect.

[0014] In the above-mentioned cold bridge air-conditioning box, the second profile is an L-shaped hollow rod body, including a second hollow part distributed along the length direction, and the first profile is an L-shaped sheet rod body. The outer side of the L-shaped hollow rod body and the inner side of the L-shaped sheet rod body are provided with a first card groove for clamping the first thermal insulation strip.

[0015] The second profile located on the inner side is an L-shaped hollow rod, which is equivalent to a tube. It is provided with a second hollow part along the length direction. Insulating materials can also be provided in the second hollow part to further improve the insulation effect. A first card slot is provided on the opposite surface between the second profile and the first profile. The first card slot can be formed between two protrusions that protrude in the vertical length direction and close to each other but do not connect. The shape of the card blocks on both sides of the first thermal insulation strip is adapted to the shape of the first card slot, and they are clamped in the first card slot to achieve a detachable fixed connection. As an optimization, reinforcing ribs are provided in the second hollow part along the length direction. The reinforcing ribs connect the right angles of the inner and outer panels of the second profile to enhance the structural strength of the second profile.

[0016] In the above-mentioned cold bridge air-conditioning box, the first thermal insulation strip includes a main body with a U-shaped cross-section and clip blocks integrally formed on both sides of the main body, the clip block cross-section is a trapezoid with a larger outside and a smaller inside, the shape of the clip block is adapted to the shape of the first slot, and the clip block is limited to be located in the first slot; the main body is clamped between the protrusions on the outside of the first slot.

[0017] From the cross-section, the first thermal insulation strip is U-shaped in the middle and trapezoidal on both sides. The trapezoid is a snap-in block, which is snapped into the first slot. The U-shaped part is the main body, which has a certain elastic deformation ability in the width direction, and the main body is located between the convex bodies on the outer sides of the first profile and the second profile. When the first profile and the second profile are pressed inward too far, they are resisted by the main body, thereby increasing the stability of the structure.

[0018] In the above-mentioned cold bridge air-conditioning box body, the thermal insulation box panel includes an inner sheet metal with a hat-shaped cross-section and an outer sheet metal with a C-shaped cross-section. The inner sheet metal and the outer sheet metal are arranged in parallel and separated from each other, and thermal insulation materials are filled in between. The inner sheet metal and the outer sheet metal are detachably fixed on both sides by thermal insulation profiles to form a step surface, the right-angled bend on the side of the inner sheet metal is matched with the second profile, and the outer side of the first profile is in contact with the outer sheet metal.

[0019] The insulation box panel is specifically formed by connecting mutually parallel inner and outer plates. The cross-section of the inner plate is hat-shaped, which is equivalent to an L-shaped right-angle bend portion vertically connected to the end of the plate surface of the main body. The outer edge of the front end of the right-angle bend portion extends outward, and the cross-section of the inner plate is C-shaped. The two ends are equivalent to being buckled inward and closed inward. The width of the inner plate is smaller than that of the outer plate. The inner and outer plates are fixedly connected by insulating profiles to form a progressive step surface, which fits perfectly with the stepped side of the side beam.

[0020] In the above-mentioned cold bridge air-conditioning box, the thermal insulation profile includes a rectangular main body with a hollow interior and a J-shaped portion vertically connected to the lower part of the rectangular main body, the rectangular main body is provided with a sheet metal slot, the outer edge of the right-angle bend portion is clamped in the sheet metal slot, and the J-shaped portion is just clamped in the inner buckle portion of the outer sheet metal; the rectangular main body is hollow inside, including a third hollow portion arranged along the length direction, and a first self-drilling screw is horizontally arranged in the third hollow portion, and the first self-drilling screw passes through the thermal insulation profile and the outer edge at the same time, and its inner end is located in the second hollow portion, and the large head is located in the third hollow portion.

[0021] The main body of the heat-insulating profile is a rectangular tubular structure, a J-shaped part is connected to the lower part of the rectangular body, and a metal plate slot is provided on the rectangular body. Specifically, a flat plate is fixed above the top surface of the rectangular body, and the first slot is formed between the flat plate and the top surface of the rectangular body. The outer edge of the inner metal plate is inserted into the first slot to achieve thickness direction limitation. The shape of the J-shaped part is adapted to the shape of the inner buckle part, and the J-shaped part is just clamped in the inner buckle part to achieve thickness direction limitation. The clamping connection between them can be formed by inserting from the length direction, which is convenient for disassembly and assembly. The rubber-plastic cotton with adhesive sealing is specifically arranged between the top surface of the flat plate and the second profile and between the J-shaped part and the first profile. The interior of the rectangular body is hollow to form a third hollow part, and the first self-drilling screw is located in the third hollow part. Its front end passes through the top surface, outer edge and flat plate of the rectangular body in sequence, and is located in the second hollow part of the second profile. The large head of the first self-drilling screw is located in the third hollow part, and will not collide with other components, and has good stability. Moreover, the first self-drilling screw is a self-tapping screw, and can achieve fixed connection without drilling in advance, which is convenient for installation. As an optimization, a clearance hole is provided on the bottom surface of the rectangular body, and the first self-drilling screw can be inserted through the clearance hole.

[0022] In the above-mentioned cold bridge air-conditioning box, a middle beam is provided between the side beams, and insulation box panels are connected on both sides of the middle beam. The middle beam includes a third profile with a sheet-like cross-section and a fourth profile with a rectangular frame-shaped cross-section. The third profile is located on the outside of the fourth profile and has a smaller width than the fourth profile. A fourth hollow portion is provided between the third profile and the fourth profile; a second card slot is provided on the inside of the third profile and the outside of the fourth profile, and a second thermal insulation strip is provided in the second card slot; the inner sheet metal and the outer sheet metal of the insulation box panel are fixedly connected by the insulation profile to form a step surface, and a second self-drilling screw is transversely arranged in the insulation profile, and the second self-drilling screw passes through the inner sheet metal and the fourth profile at the same time; a second sealing insulation pad is provided between the third profile and the insulation box panel and between the fourth profile and the insulation box panel; the inner side surface of the fourth profile and the insulation box panel are smoothly connected.

[0023] In order to further enhance the structural strength of the box body surface, a middle beam is provided between the side beams, and the insulation box board is arranged between the middle beam and the side beams. The connection structure between the insulation box board and the middle beam is basically the same as the connection structure between the insulation box and the side beams. Similar to the first profile and the second profile, the middle beam is mainly composed of the third profile and the fourth profile. The cross-section of the third profile is a rectangular frame, and the fourth profile is a flat plate. The third profile and the fourth profile are connected by a second slot and a second insulation strip, which is similar to the connection between the first slot and the first insulation strip, isolating direct heat conduction and improving the insulation effect; a fourth hollow portion is formed between the third profile and the fourth profile, which can be used to plug in the T-shaped pin; similarly, a second sealing insulation pad layer of rubber-plastic cotton with glue is provided between the third profile and the fourth profile and the insulation box board to achieve sealing, fixation and insulation; a second self-drilling screw is horizontally arranged in the rectangular body of the insulation profile, and the second self-drilling screw passes through the rectangular body and the fourth profile to achieve fixation between the insulation board and the middle beam; the fourth profile and the insulation box board are smoothly connected to facilitate cleaning inside the box.

[0024] In the above-mentioned cold bridge air-conditioning box, the central beam and the side beam are detachably fixed by T-shaped pins, and the T-shaped pins include a second elongated body and a third elongated body vertically fixed on both sides of the upper end of the second elongated body. The second elongated body is inserted in the fourth hollow portion and fixedly connected to the side beams by a bolt structure, and the upper end of the third elongated body is against the side beams; a sealing rib is fixed on the second elongated body, and the sealing rib is tightly fitted with the inner side of the third profile and the outer side of the fourth profile in an interference fit manner.

[0025] A T-shaped pin is inserted in the middle beam, and the second elongated body of the T-shaped pin is inserted into the fourth hollow part of the middle beam. The third elongated body is fixed to the end of the second elongated body to form a T-shape. The second elongated body and the side beam are fixedly connected by a bolt structure to achieve fixation between the middle beam and the side beam, thereby improving the overall structural strength. Similarly, similar to the first elongated body, a sealing rib is also fixed on the second elongated body to make the connection between the second elongated body and the fourth hollow part more stable and have a good sealing effect. The bolt structure is an existing technology and will not be expanded too much. As an optimization, a heat insulating material is also provided in the third hollow part.

[0026] Compared with the prior art, the utility model has the following advantages:

[0027] 1. The cold-bridge air-conditioning box of the utility model is formed into a rectangular box structure by splicing a frame and an insulation box plate. The cavity formed in the box can be used to install the internal functional parts of the air conditioner. The frame is equivalent to the edges of the rectangular parallelepiped, and the insulation box plate is equivalent to the surface of the rectangular parallelepiped. The frame is specifically composed of strip side beams, and the three-way pins are arranged at the ends of the side beams, which are equivalent to the top angles of the rectangular parallelepiped, so as to realize the detachable fixation between adjacent side beams, and have good structural strength as a whole. The insulation box plate is of the cold bridge type, that is, there is no direct metal contact between the inner plate and the outer plate, and there is no cold bridge between them, which cuts off direct heat transfer. The inner plate and the outer plate are fixed by the insulation profile, and the insulation profile is connected to the side beam at the same time to achieve the connection and fixation between the side beam and the insulation box plate; a first sealing insulation cushion layer is also provided between the side beam and the insulation box plate, which is used for sealing and fixing on the one hand to reduce the air leakage rate, and on the other hand to have a heat insulation effect to reduce the conduction of heat; and a cold bridge structure is provided between the inner and outer profiles of the side beam to cut off the direct conduction of heat; the above structure enables the air-conditioning box body to have a strong insulation capacity and a low air leakage rate, and condensation is not easy to occur on the outside of the box body. In addition, the components are detachably connected, which is convenient for disassembly and assembly.

[0028] 2. The three-way pin is provided with three mutually perpendicular first elongated bodies, the cross-sectional shape of the first elongated bodies is adapted to the cross-sectional shape of the first hollow portion, and a sealing rib is provided on the first elongated body, which is tightly fitted with the inner and outer sides of the first hollow portion in an interference fit manner, has good sealing performance, and a good fixing effect.

[0029] 3. From the cross-section, the first thermal insulation strip is U-shaped in the middle and trapezoidal on both sides. The trapezoidal part is a snap-in block, which is snapped into the first slot. The U-shaped part is the main body, which has a certain elastic deformation ability in the width direction, and the main body is located between the convex bodies on the outer sides of the first profile and the second profile. When the first profile and the second profile are pressed inward for too large a distance, they are resisted by the main body, thereby increasing the stability of the structure.

[0030] 4. In order to further enhance the structural strength of the surface of the box, a middle beam is provided between the side beams, and the insulation box board is provided between the middle beam and the side beams. The connection structure between the insulation box board and the middle beam is basically the same as the connection structure between the insulation box and the side beams. Similar to the first profile and the second profile, the middle beam is mainly composed of the third profile and the fourth profile. The cross section of the third profile is a rectangular frame, and the fourth profile is a flat plate. The third profile and the fourth profile are connected through the second card slot and the second insulation strip, which is similar to the connection between the first card slot and the first insulation strip, isolating direct heat conduction and improving the insulation effect; a fourth hollow part is formed between the third profile and the fourth profile, which can be used to plug in the T-shaped pin; similarly, a rubber-plastic cotton with glue is provided as the second sealing insulation cushion between the third profile and the fourth profile and the insulation box board to achieve sealing, fixation and insulation; a second self-drilling screw is transversely arranged in the rectangular body of the insulation profile, and the second self-drilling screw passes through the rectangular body and the fourth profile to achieve fixation between the insulation board and the middle beam.

[0031] 5. The connection between the insulation box panels and the inner sides of the side beams and the middle beam is smooth, with no steps between them, which reduces dust accumulation and facilitates the installation of internal functional parts and cleaning of the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure provided by the utility model;

[0033] Figure 2 It is a schematic diagram of the framework provided by the utility model;

[0034] Figure 3 It is a cross-sectional schematic diagram of the connection and cooperation between the side beams, the middle beam and the insulation box board provided by the utility model;

[0035] Figure 4 yes Figure 3 A magnified detail of the center point A;

[0036] Figure 5 It is a schematic diagram of the components of the cold-break bridge structure provided by the utility model;

[0037] Figure 6 It is a structural schematic diagram of the heat-insulating profile provided by the utility model;

[0038] Figure 7 It is a structural schematic diagram of the three-way plug provided by the utility model;

[0039] Figure 8 It is a schematic diagram of the structure of the T-shaped pin provided by the utility model;

[0040] Fig. 9 It is a structural schematic diagram of the side beam provided by the utility model;

[0041] Fig.10 It is a structural schematic diagram of the middle beam provided by the utility model.

[0042] In the figure, frame 1, insulation box board 2, inner sheet metal 21, outer sheet metal 22, thermal insulation material 23, right-angle bending portion 24, outer edge 25, inner buckle portion 26, mounting hole 27, side beam 3, first profile 31, second profile 32, first hollow portion 33, second hollow portion 34, first slot 35, three-way pin 4, base 41, first elongated body 42, insulation profile 5, rectangular body 51, J-shaped portion 52, sheet metal slot 5 3. third hollow portion 54, first self-drilling screw 55, first sealing and thermal insulation pad 6, cold bridge structure 7, first thermal insulation strip 71, main body 72, clamping block 73, protrusion 74, middle beam 8, third profile 81, fourth profile 82, fourth hollow portion 83, second clamping groove 84, second thermal insulation strip 85, second self-drilling screw 86, second sealing and thermal insulation pad 87, T-shaped pin 9, second elongated body 91, third elongated body 92. DETAILED DESCRIPTION

[0043] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0044] Specific implementation examples Figure 1-10 As shown, the present cold-bridge air-conditioning box body comprises a frame 1 and a cold-bridge insulation box panel 2, the insulation box panel 2 is fixedly connected between the frames 1 to form a box structure, the frame 1 comprises side beams 3 for enclosing a rectangular frame, the side beams 3 are detachably fixedly connected by three-way pins 4, the side beams 3 and the inner and outer plates of the insulation box panel 2 are detachably connected by an insulation profile 5, a first sealing insulation cushion layer 6 is provided between the side beams 3 and the insulation box panel 2, a cold-bridge structure 7 is provided between the outer side surface and the inner side surface of the side beam 3, and the inner side surfaces of the insulation box panel 2 and the side beams 3 are smoothly connected.

[0045] Specifically, the cold bridge air-conditioning box of the utility model is spliced ​​by a frame 1 and an insulation box panel 2 to form a rectangular box structure. The cavity formed in the box can be used to install the internal functional parts of the air conditioner. The frame 1 is equivalent to the edges of the rectangular parallelepiped, and the insulation box panel 2 is equivalent to the faces of the rectangular parallelepiped. The frame 1 is specifically composed of strip side beams 3, and the three-way pin 4 is arranged at the end of the side beam 3, which is equivalent to the top angle of the rectangular parallelepiped, so as to realize the detachable fixation between adjacent side beams 3, and has good structural strength as a whole. The insulation box board 2 is a cold bridge type, that is, there is no direct metal contact between the inner plate and the outer plate, and there is no cold bridge between them, which cuts off direct heat transfer. The inner plate and the outer plate are fixed by the heat-insulating profile 5, and the heat-insulating profile 5 is connected to the side beam 3 at the same time, so as to realize the connection and fixation between the side beam 3 and the insulation box board 2; a first sealing heat-insulating cushion layer 6 is also provided between the side beam 3 and the insulation box board 2, which is used for sealing and fixing on the one hand to reduce the air leakage rate, and has a heat-insulating effect on the other hand to reduce the conduction of heat; and a cold bridge structure 7 is provided between the inner and outer profiles of the side beam 3 to cut off the direct conduction of heat; the above structure makes the air-conditioning box body have a strong heat-insulating capacity and a low air leakage rate, and it is not easy to produce condensation on the outside of the box body. In addition, all components are detachably connected, which is convenient for disassembly and assembly. In addition, the connection between the inner side of the insulation box board 2 and the side beam 3 is smooth, and there is no step between them, which reduces the accumulation of dust and facilitates the installation of internal functional parts and the cleaning of the box body.

[0046] like Figure 3 , 4 As shown in Figures 9 and 10, the side beam 3 includes a first profile 31 and a second profile 32 that are straight and L-shaped in cross section. The first profile 31 is located on the outside, and the second profile 32 is located on the inside. A first hollow portion 33 is formed between the first profile 31 and the second profile 32. The first profile 31 and the second profile 32 are fixedly connected by a cold-breaking bridge structure 7. The cold-breaking bridge structure 7 includes a first insulation strip 71. The side of the insulation box board 2 is stepped, and the side beam 3 is butt-matched with the step surface of the side of the insulation box board 2. The first sealing insulation cushion layer 6 includes a rubber-plastic sealing cotton with glue arranged between the outside of the first profile 31 and the insulation box board 2 and between the outside of the second profile 32 and the insulation box board 2.

[0047] Specifically, the L-shaped first profile 31 and the second profile 32 are stacked in the same direction, the second profile 32 is on the inner side of the first profile 31, that is, its inner side faces the cavity of the box body, the first profile 31 and the second profile 32 are fixedly connected by the first insulation strip 71, and the first insulation strip 71 is made of insulation material, and the heat conduction efficiency is low. The side surfaces of the insulation box board 2 and the side beam 3 are mutually adapted and matched, wherein a rubber-plastic sealing cotton with glue is provided on the outer side of the first profile 31 and between the inner side of the second profile 32 and the step surface of the insulation box board 2, and the rubber-plastic sealing cotton with glue has adhesive on both sides to achieve sealing and fixation between the side beam 3 and the insulation box board 2. Of course, similar suitable materials can also replace the rubber-plastic cotton.

[0048] As an optimization, the three-way pin 4 is located at the top corner of the box structure, including a base 41 and three mutually perpendicular first elongated bodies 42 arranged on the base 41, and the first elongated bodies 42 are inserted in the first hollow portion 33; a sealing rib is fixed on the first elongated body 42, and the sealing rib is tightly fitted with the inner side of the first profile 31 and the outer side of the second profile 32 in an interference fit manner.

[0049] In other words, the three-way pin 4 is provided with three mutually perpendicular first elongated bodies 42, the cross-sectional shape of the first elongated bodies 42 is adapted to the cross-sectional shape of the first hollow portion 33, and a sealing rib is provided on the first elongated body 42, which is tightly fitted with the inner and outer sides of the first hollow portion 33 in an interference fit manner, has good sealing performance, and a good fixing effect.

[0050] like Figure 3 , 9 As shown, the second profile 32 is an L-shaped hollow rod body, including a second hollow portion 34 distributed along the length direction, and the first profile 31 is an L-shaped sheet rod body. The outer side of the L-shaped hollow rod body and the inner side of the L-shaped sheet rod body are provided with a first clamping groove 35 for clamping the first thermal insulation strip 71. The first thermal insulation strip 71 includes a main body 72 with a U-shaped cross section and clamping blocks 73 integrally formed on both sides of the main body 72. The cross section of the clamping block 73 is a trapezoid with a larger outer side and a smaller inner side. The shape of the clamping block 73 is adapted to the shape of the first clamping groove 35. The clamping block 73 is clamped and limited to be located in the first clamping groove 35; the main body 72 is clamped between the protrusions 74 on the outer side of the first clamping groove 35.

[0051] Specifically, the second profile 32 located on the inner side is an L-shaped hollow rod, which is equivalent to a tube. It is provided with a second hollow part 34 along the length direction. Insulating materials can also be provided in the second hollow part 34 to further improve the insulation effect. A first card slot 35 is provided on the opposite surface between the second profile 32 and the first profile 31. The first card slot 35 can be formed between two protrusions 74 that protrude in the vertical length direction and close to each other but do not connect. The shape of the card blocks 73 on both sides of the first thermal insulation strip 71 is adapted to the shape of the first card slot 35, and is carded in the first card slot 35 to achieve a detachable fixed connection. As an optimization, reinforcing ribs are provided in the second hollow part 34 along the length direction. The reinforcing ribs connect the right angles of the inner and outer panels of the second profile 32 to enhance the structural strength of the second profile 32. From the cross-section, the first thermal insulation strip 71 is U-shaped in the middle and trapezoidal on both sides. The trapezoid is a snap-in block 73, which is snapped into the first slot 35. The U-shaped portion is a main body 72, which has a certain elastic deformation ability in the width direction, and the main body 72 is located between the convex bodies 74 on the outer sides of the first profile 31 and the second profile 32. When the first profile 31 and the second profile 32 are pressed inward too far, they are resisted by the main body 72, thereby increasing the structural stability.

[0052] like Figure 3As shown, the insulation box panel 2 includes an inner sheet metal 21 with a hat-shaped cross-section and an outer sheet metal 22 with a C-shaped cross-section. The inner sheet metal 21 and the outer sheet metal 22 are arranged in parallel and separated from each other, and are filled with thermal insulation material 23. The inner sheet metal 21 and the outer sheet metal 22 are detachably fixed on both sides by the insulation profile 5 to form a step surface, the right-angled bend 24 on the side of the inner sheet metal 21 is matched with the second profile 32, and the outer side of the first profile 31 is in contact with the outer sheet metal 22. The thermal insulation profile 5 includes a rectangular main body 51 with a hollow interior and a J-shaped portion 52 vertically connected to the lower part of the rectangular main body 51. A sheet metal slot 53 is provided on the rectangular main body 51. The outer edge 25 of the right-angle bend portion 24 is clamped in the sheet metal slot 53, and the J-shaped portion 52 is just clamped in the inner buckle portion 26 of the outer sheet metal 22; the rectangular main body 51 is hollow inside, including a third hollow portion 54 arranged along the length direction, and a first self-drilling screw 55 is horizontally arranged in the third hollow portion 54. The first self-drilling screw 55 penetrates the thermal insulation profile 5 and the outer edge 25 at the same time, and its inner end is located in the second hollow portion 34, and the large head is located in the third hollow portion 54.

[0053] Specifically, the insulation box board 2 is formed by connecting mutually parallel inner and outer plates. The cross-section of the inner plate is a hat-shaped, which is equivalent to a main body plate end vertically connected with an L-shaped right-angle bend portion 24. The outer edge 25 of the front end of the right-angle bend portion 24 extends outward, and the cross-section of the inner plate is C-shaped, and the two ends are equivalent to being buckled inward and closed inward. The width of the inner plate is smaller than that of the outer plate. The inner and outer plates are fixedly connected by an insulating profile 5 to form a progressive step surface, which fits exactly with the stepped side of the side beam 3. The main body of the thermal insulation profile 5 is a rectangular tubular structure, with a J-shaped portion 52 connected to the lower part of the rectangular main body 51, and a metal plate slot is provided on the rectangular main body 51. Specifically, a flat plate is fixed above the top surface of the rectangular main body 51, and the first slot 35 is formed between the flat plate and the top surface of the rectangular main body 51. The outer edge 25 of the inner metal plate is inserted in the first slot 35 to achieve thickness direction limitation. The shape of the J-shaped portion 52 is adapted to the shape of the inner buckle portion 26, and the J-shaped portion is just clamped in the inner buckle portion 26 to achieve thickness direction limitation. The clamping connection between them can be formed by insertion in the length direction, which is convenient for disassembly and assembly. The rubber-plastic sealing cotton with glue is specifically arranged between the top surface of the flat plate and the second profile 32 and between the J-shaped portion 52 and the first profile 31. The interior of the rectangular body 51 is hollow to form a third hollow portion 54, and the first self-drilling screw 55 is located in the third hollow portion 54. The front end thereof passes through the top surface, the outer edge 25 and the flat plate of the rectangular body 51 in sequence, and is located in the second hollow portion 34 of the second profile 32. The large head of the first self-drilling screw 55 is located in the third hollow portion 54, and will not collide with or contact other components, and has good stability. Moreover, the first self-drilling screw 55 is a self-tapping screw, and can be fixedly connected without drilling in advance, and is easy to install. As an optimization, a clearance hole is provided on the bottom surface of the rectangular body 51, and the first self-drilling screw 55 can be inserted from the clearance hole.

[0054] As an optimization of this embodiment, a middle beam 8 is provided between the side beams 3, and the insulation box panels 2 are connected on both sides of the middle beam 8. The middle beam 8 includes a third profile 81 with a sheet-like cross-section and a fourth profile 82 with a rectangular frame-shaped cross-section. The third profile 81 is located on the outside of the fourth profile 82 and has a smaller width than the fourth profile 82. A fourth hollow portion 83 is provided between the third profile 81 and the fourth profile 82; a second card groove 84 is provided on the inside of the third profile 81 and the outside of the fourth profile 82, and a second thermal insulation strip 85 is provided in the second card groove 84; the inner sheet metal 21 and the outer sheet metal 22 of the insulation box panel 2 are fixedly connected by the insulation profile 5 to form a step surface, and a second self-drilling screw 86 is transversely arranged in the insulation profile 5, and the second self-drilling screw 86 passes through the inner sheet metal 21 and the fourth profile 82 at the same time; a second sealing insulation pad layer 87 is provided between the third profile 81 and the insulation box panel 2 and between the fourth profile 82 and the insulation box panel 2. The center beam 8 and the side beam are detachably fixed by T-shaped pins 9. The T-shaped pins 9 include a second elongated body 91 and a third elongated body 92 vertically fixed on both sides of the upper end of the second elongated body 91. The second elongated body 91 is inserted in the fourth hollow portion 83 and fixedly connected to the side beam 3 by a bolt structure. The upper end of the third elongated body 92 abuts against the side beam 3. A sealing rib is fixed on the second elongated body 91, and the sealing rib is tightly fitted with the inner side of the third profile 81 and the outer side of the fourth profile 82 in an interference fit manner.

[0055] Specifically, in order to further enhance the structural strength of the surface of the box body, a middle beam 8 is provided between the side beams 3, and the insulation box panel 2 is arranged between the middle beam 8 and the side beams 3. The connection structure between the insulation box panel 2 and the middle beam 8 is basically the same as the connection structure between the insulation box and the side beams 3. Similar to the first profile 31 and the second profile 32, the middle beam 8 is mainly composed of a third profile 81 and a fourth profile 82. The cross-section of the third profile 81 is a rectangular frame, and the fourth profile 82 is a flat plate. The third profile 81 and the fourth profile 82 are connected by a second slot 84 and a second insulation strip 85, which is similar to the connection between the first slot 35 and the first insulation strip 71, isolating direct heat conduction and improving the insulation effect; a fourth hollow portion 83 is formed between the third profile 81 and the fourth profile 82, which can be used to plug in the T-shaped pin 9; similarly, a rubber-plastic cotton with glue is provided as a second sealing insulation cushion layer 87 between the third profile 81 and the fourth profile 82 and the insulation box board 2 to achieve sealing, fixation and insulation; a second self-drilling screw 86 is horizontally arranged in the rectangular body 51 of the insulation profile 5, and the second self-drilling screw 86 passes through the rectangular body 51 and the fourth profile 82 to achieve fixation between the insulation board and the middle beam 8. A T-shaped pin 9 is inserted in the middle beam 8, and the second elongated body 91 of the T-shaped pin 9 is inserted into the fourth hollow portion 83 of the middle beam 8. The third elongated body 92 is fixed to the end of the second elongated body 91 to form a T-shape. The second elongated body 91 and the side beam 3 are fixedly connected by a bolt structure to achieve fixation between the middle beam 8 and the side beam 3 and improve the overall structural strength. Similarly, similar to the first elongated body 42, a sealing rib is also fixedly provided on the second elongated body 91, so that the connection between the second elongated body 91 and the fourth hollow portion 83 is more stable and has a good sealing effect. Insulating material is also provided in the third hollow portion 54.

[0056] As an optimization of this embodiment, a plurality of mounting holes 27 are provided on the thermal insulation box plate 2, and decorative covers are detachably fastened on the mounting holes 27.

[0057] Specific working principle: When assembling a single box, first assemble the frame 1, connect the first profile 31 and the second profile 32 through the first insulation strip 71 to form the side beam 3, connect the third profile 81 and the fourth profile 82 through the second insulation strip 85 to form the middle beam 8, connect the middle beam 8 and the side beam 3 through the three-way pin 4 and the T-shaped pin 9, then connect the inner sheet metal and the insulation profile 5 by snap-fitting, cover the top of the insulation profile 5 and the inner side of the J-shaped portion 52 with rubber-sealed sealing cotton, and adhere the other side of the rubber-sealed sealing cotton to the middle beam 8 and the side beam 3 respectively, then insert the first self-drilling screw 55 and the second self-drilling screw 86 into the insulation profile 5 respectively to further fix it, and finally install the thermal insulation material 23 cut into the corresponding shape on the inner sheet metal 21, and put the outer sheet metal 22 on the J-shaped portion 52 to complete the assembly.

[0058] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A cold-bridge-breaking air-conditioning box, comprising a frame (1) and a cold-bridge-breaking insulation box plate (2), wherein the insulation box plate (2) is fixedly connected between the frames (1) to form a box structure, characterized in that: The frame (1) comprises side beams (3) for enclosing a rectangular frame body, the side beams (3) are detachably fixedly connected to each other via three-way pins (4), the side beams (3) and the inner and outer plates of the insulation box board (2) are detachably connected via insulation profiles (5), a first sealing insulation cushion layer (6) is provided between the side beams (3) and the insulation box board (2), and a cold bridge structure (7) is provided between the outer side surface and the inner side surface of the side beam (3).

2. The cold bridge air conditioning box according to claim 1 is characterized in that: The side beam (3) comprises a first profile (31) and a second profile (32) which are straight rod-shaped and L-shaped in cross section, the first profile (31) being located on the outside and the second profile (32) being located on the inside, with a first hollow portion (33) formed therebetween, the first profile (31) and the second profile (32) being fixedly connected via a thermal break bridge structure (7), the thermal break bridge structure (7) comprising a first thermal insulation strip (71), and the inner sides of the thermal insulation box board (2) and the second profile (32) being smoothly connected.

3. The cold bridge air conditioning box according to claim 2 is characterized in that: The side of the thermal insulation box panel (2) is in the shape of a step, the side beam (3) is butt-matched with the step surface of the side of the thermal insulation box panel (2), and the first sealing heat-insulating cushion layer (6) comprises a rubber-plastic sealing cotton with glue arranged between the outer side of the first profile (31) and the thermal insulation box panel (2) and between the outer side of the second profile (32) and the thermal insulation box panel (2).

4. The cold bridge air conditioning box according to claim 2 is characterized in that: The three-way plug (4) is located at the top corner of the box structure, and comprises a base (41) and three mutually perpendicular first elongated bodies (42) arranged on the base (41), and the first elongated bodies (42) are inserted into the first hollow portion (33); a sealing rib is fixedly provided on the first elongated body (42), and the sealing rib is tightly fitted with the inner side of the first profile (31) and the outer side of the second profile (32) in an interference fit manner.

5. The cold bridge air conditioning box according to claim 2 is characterized in that: The second profile (32) is an L-shaped hollow rod body, comprising a second hollow portion (34) distributed along the length direction; the first profile (31) is an L-shaped sheet rod body; the outer side of the L-shaped hollow rod body and the inner side of the L-shaped sheet rod body are provided with a first clamping groove (35) for clamping the first thermal insulation strip (71).

6. The cold bridge air conditioning box according to claim 5 is characterized in that: The first heat insulating strip (71) comprises a main body (72) having a U-shaped cross section and clamping blocks (73) integrally formed on both sides of the main body (72); the clamping block (73) has a cross section that is trapezoidal and is larger on the outside and smaller on the inside; the shape of the clamping block (73) is adapted to the shape of the first clamping slot (35); the clamping block (73) is clamped and located in the first clamping slot (35); the main body (72) is clamped between the protrusions (74) on the outside of the first clamping slot (35).

7. The cold bridge air conditioning box according to claim 2 is characterized in that: The thermal insulation box panel (2) comprises an inner sheet metal (21) with a hat-shaped cross section and an outer sheet metal (22) with a C-shaped cross section. The inner sheet metal (21) and the outer sheet metal (22) are arranged in parallel and separated from each other, and a thermal insulation material (23) is filled between them. The inner sheet metal (21) and the outer sheet metal (22) are detachably fixed on both sides by a thermal insulation profile (5) to form a step surface. The right-angled bend (24) on the side of the inner sheet metal (21) is fitted with the second profile (32), and the outer side of the first profile (31) is fitted with the outer sheet metal (22).

8. The cold bridge air conditioning box according to claim 7 is characterized in that: The heat-insulating profile (5) comprises a rectangular main body (51) with a hollow interior and a J-shaped portion (52) vertically connected to the lower portion of the rectangular main body (51); a sheet metal slot (53) is provided on the rectangular main body (51); the outer edge (25) of the right-angled bent portion (24) is clamped in the sheet metal slot (53); and the J-shaped portion (52) is just clamped in the inner buckle portion (26) of the outer sheet metal (22); The rectangular body (51) is hollow inside and includes a third hollow portion (54) arranged along the length direction. A first self-drilling screw (55) is arranged transversely in the third hollow portion (54). The first self-drilling screw (55) penetrates both the thermal insulation profile (5) and the outer edge (25). The inner end of the first self-drilling screw (55) is located in the second hollow portion (34), and the large head is located in the third hollow portion (54).

9. The cold-bridge air-conditioning box according to any one of claims 1 to 8, characterized in that: A middle beam (8) is provided between the side beams (3), and the insulation box panels (2) are connected to both sides of the middle beam (8), the middle beam (8) comprises a third profile (81) with a sheet-like cross section and a fourth profile (82) with a rectangular frame-shaped cross section, the third profile (81) is located outside the fourth profile (82) and has a smaller width than the fourth profile (82), and a fourth hollow portion (83) is provided between the third profile (81) and the fourth profile (82); A second slot (84) is provided on the inner side of the third profile (81) and the outer side of the fourth profile (82), and a second heat insulation strip (85) is provided in the second slot (84); The inner sheet metal (21) and the outer sheet metal (22) of the thermal insulation box panel (2) are fixedly connected via a thermal insulation profile (5) to form a step surface, a second self-drilling screw (86) is transversely arranged in the thermal insulation profile (5), and the second self-drilling screw (86) passes through the inner sheet metal (21) and the fourth profile (82) at the same time; A second sealing and heat-insulating cushion layer (87) is provided between the third profile (81) and the heat-insulating box plate (2), and between the fourth profile (82) and the heat-insulating box plate (2); The inner side surface of the fourth profile (82) is smoothly connected to the thermal insulation box plate (2).

10. The cold bridge air conditioning box according to claim 9, characterized in that: The middle beam (8) and the side beam are detachably fixed via a T-shaped pin (9), the T-shaped pin (9) comprising a second elongated body (91) and a third elongated body (92) vertically fixed to both sides of the upper end of the second elongated body (91), the second elongated body (91) is inserted into the fourth hollow portion (83) and fixedly connected to the side beam (3) via a bolt structure, and the upper end of the third elongated body (92) abuts against the side beam (3); The second elongated body (91) is provided with a sealing rib, which is tightly fitted with the inner side of the third profile (81) and the outer side of the fourth profile (82) in an interference fit manner.

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