Heating and ventilation equipment indoor unit and heating and ventilation equipment

Abstract

The invention discloses a heating and ventilation equipment indoor unit and heating and ventilation equipment.The heating and ventilation equipment indoor unit comprises a heat exchange assembly and a detection assembly, the heat exchange assembly is provided with a first end and a second end which are oppositely arranged, the heat exchange assembly comprises at least one heat exchange pipe, and each heat exchange pipe is provided with at least one bending area at the first end; the second end of each heat exchange pipe is provided with a refrigerant connecting end, the refrigerant connecting ends are used for being communicated with a compressor assembly of an outdoor unit of the heating and ventilation equipment, the detection assembly comprises a sealing cover assembly and a refrigerant leakage detection piece, and the sealing cover assembly forms a closed space. The refrigerant connecting end, the at least one bending area and the refrigerant leakage detection piece are arranged in the closed space. According to the technical scheme, when refrigerant leakage occurs in the bending area and / or the refrigerant connecting end of the heat exchange tube, the refrigerant leakage detection part can effectively detect, multi-position monitoring of one refrigerant detection part is achieved, the number of the refrigerant leakage detection parts is reduced, and the manufacturing cost of the heating and ventilation equipment indoor unit is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of HVAC equipment, and in particular to a HVAC equipment and a HVAC equipment control method. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] The existing HVAC indoor unit usually includes a heat exchange tube connected to the compressor assembly. The refrigerant circulates between the compressor assembly and the heat exchange tube, and improves the indoor temperature through heat exchange between the heat exchange tube and the indoor air.

[0004] Heat exchange tubes are prone to refrigerant leakage in their bending and welding areas, especially leakage of flammable refrigerants (such as R454B refrigerants, etc.), which increases safety hazards during user use. In the prior art, refrigerant sensors are installed in multiple leakage areas to detect leaked refrigerants, thereby improving user safety during use. However, the installation cost of multiple refrigerant sensors is high, which increases the manufacturing cost of HVAC equipment. Summary of the invention

[0005] The purpose of the present invention is to at least solve the problem of how to reduce the number of refrigerant sensors. This purpose is achieved by the following technical solutions:

[0006] A first aspect of the present invention provides a HVAC equipment indoor unit, the HVAC equipment indoor unit comprising:

[0007] A heat exchange assembly, the heat exchange assembly having a first end and a second end arranged oppositely, the heat exchange assembly comprising at least one heat exchange tube, each of the heat exchange tubes having at least one bending area at the first end, each of the heat exchange tubes having a refrigerant connection end at the second end, the refrigerant connection end being used to communicate with a compressor assembly of an outdoor unit of a HVAC device;

[0008] The detection component includes a sealing cover component and a refrigerant leakage detection component, the sealing cover component forms a closed space, and the refrigerant connection end, the at least one bending area and the refrigerant leakage detection component are respectively arranged in the closed space.

[0009] According to the HVAC equipment outdoor unit of the present invention, the refrigerant connection end and the bending area of ​​the heat exchange tube are locations where the refrigerant is prone to leak. The refrigerant connection end and the bending area are arranged in a confined space, thereby reducing the refrigerant leakage and improving the user's safety. The refrigerant leakage detection component is arranged in the confined space. When the refrigerant leaks in the bending area and / or the refrigerant connection end of the heat exchange tube, the refrigerant leakage detection component can effectively detect it, thereby realizing multi-position monitoring of a refrigerant detection component, thereby reducing the number of refrigerant leakage detection components, and effectively reducing the manufacturing cost of the HVAC equipment indoor unit.

[0010] In addition, the HVAC equipment outdoor unit according to the present invention may also have the following additional technical features:

[0011] In some embodiments of the present invention, the sealing cover assembly comprises:

[0012] a first sealing cover, the first sealing cover being arranged at the first end and forming a first part of the enclosed space at the first end, wherein the at least one bending area of ​​each heat exchange tube is arranged in the first part;

[0013] a second sealing cover, the second sealing cover being arranged at the second end and forming a second part of the enclosed space at the second end, the refrigerant connection end of each of the heat exchange tubes being arranged in the second part;

[0014] A connecting piece, wherein the connecting piece has a connecting channel, wherein the connecting channel constitutes a third part of the enclosed space, wherein the first part is connected to the second part through the third part, and the refrigerant leakage detection part is arranged in the first part, the second part or the third part.

[0015] In some embodiments of the present invention, the indoor unit of the HVAC equipment also includes a mounting frame, the mounting frame includes a first side panel, the first end is mounted on the first side panel, each of the heat exchange tubes is arranged through the first side panel, and the at least one bending area of ​​each of the heat exchange tubes protrudes from the first side surface of the first side panel, and the first sealing cover is sealed and connected to the first side surface and surrounds the first part.

[0016] In some embodiments of the present invention, the first sealing cover and the first side plate are connected by welding, screw connection, bonding, clamping or riveting.

[0017] In some embodiments of the present invention, the indoor unit of the HVAC equipment also includes a mounting frame, the mounting frame includes a second side panel, the second end is mounted on the second side panel, each of the heat exchange tubes is arranged through the second side panel, the refrigerant connection end of each of the heat exchange tubes protrudes from the second side surface of the second side panel, and the second sealing cover is sealed and connected to the second side surface and encloses the second part.

[0018] In some embodiments of the present invention, the second sealing cover and the second side plate are connected by welding, screw connection, bonding, clamping or riveting.

[0019] In some embodiments of the present invention, the refrigerant connection end of each of the heat exchange tubes includes an input end and an output end, and the heat exchange assembly also includes an input pipe and an output pipe respectively used to connect with the compressor assembly, the input pipe is arranged in the confined space and connected to the input end of each of the heat exchange tubes, and the output pipe is arranged in the confined space and connected to the output end of each of the heat exchange tubes.

[0020] In some embodiments of the present invention, the indoor unit of the HVAC equipment also includes a mounting frame, the mounting frame includes a connecting plate, the connecting plate is arranged at the second end, the sealing cover assembly also includes a third sealing cover, the third sealing cover is sealed and connected to the third side of the connecting plate and encloses a fourth part of the enclosed space, the input pipe and the output pipe are respectively arranged in the fourth part, and the fourth part is connected to the second part.

[0021] In some embodiments of the present invention, the refrigerant leakage detection component is detachably mounted on the second sealing cover.

[0022] In some embodiments of the present invention, the heat exchange assembly further comprises at least one heat exchange fin, and the at least one heat exchange tube is disposed through the at least one heat exchange fin and is thermally connected to the at least one heat exchange fin;

[0023] Wherein, the connecting piece is arranged on the outside of the at least one heat exchange fin, or the connecting piece is arranged through the at least one heat exchange fin.

[0024] In some embodiments of the present invention, the HVAC equipment indoor unit further includes:

[0025] A mounting frame, on which the heat exchange assembly is mounted;

[0026] A fan, the fan being mounted on the mounting frame and located on one side of the heat exchange assembly;

[0027] A water receiving tray is installed on the mounting frame and is located below the heat exchange component.

[0028] A second aspect of the present invention provides a HVAC device, the HVAC device comprising:

[0029] A HVAC equipment outdoor unit, wherein the HVAC equipment outdoor unit comprises a compressor assembly;

[0030] According to the HVAC equipment indoor unit as described above, the refrigerant connection end of the heat exchange tube of the HVAC equipment indoor unit is connected to the compressor assembly.

[0031] According to the HVAC equipment of the present invention, the refrigerant connection end and the bending area of ​​the heat exchange tube of the outdoor unit of the HVAC equipment are locations where the refrigerant is prone to leak. The refrigerant connection end and the bending area are arranged in a confined space, thereby reducing the refrigerant leakage and improving the user's safety. The refrigerant leakage detection part is arranged in the confined space. When the refrigerant leaks in the bending area and / or the refrigerant connection end of the heat exchange tube, the refrigerant leakage detection part can effectively detect it, thereby realizing multi-position monitoring of a refrigerant detection part, thereby reducing the number of refrigerant leakage detection parts, and effectively reducing the manufacturing cost of the indoor unit of the HVAC equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0033] Figure 1 The structure diagram of the indoor unit of the HVAC equipment according to one embodiment of the present invention is schematically shown;

[0034] Figure 2 for Figure 1 A schematic diagram of the structure of the indoor unit of the HVAC equipment shown in FIG. 1 without the water receiving pan;

[0035] Figure 3 for Figure 1 A schematic diagram of the structure of the indoor unit of the HVAC equipment shown in the figure without the first sealing cover;

[0036] Figure 4 for Figure 1 A structural schematic diagram of the indoor unit of the HVAC equipment from another perspective shown in ;

[0037] Figure 5 for Figure 4 A schematic diagram of the structure of the indoor unit of the HVAC equipment shown in the figure without the second sealing cover;

[0038] Figure 6 for Figure 5A structural schematic diagram of another perspective of the indoor unit of the HVAC equipment shown in (showing the detection part);

[0039] Figure 7 The structure diagram of the indoor unit of the HVAC equipment according to one embodiment of the present invention is schematically shown (partial structure is shown);

[0040] Figure 8 for Figure 7 A structural schematic diagram of the indoor unit of the HVAC equipment from another perspective shown in ;

[0041] Fig. 9 The structural block diagram of a HVAC device according to an embodiment of the present invention is schematically shown.

[0042] The reference numerals are as follows:

[0043] 1000. HVAC equipment;

[0044] 100. Indoor unit of HVAC equipment;

[0045] 10. Mounting frame;

[0046] 11. first side panel; 111. first side surface; 12. second side panel; 121. second side surface;

[0047] 20. Fan;

[0048] 30. Water tray;

[0049] 40. Heat exchange components;

[0050] 41. heat exchange tube; 411. bending area; 42. input tube; 43. output tube; 44. input distribution piece; 45. output collection piece;

[0051] 50. Detection components;

[0052] 51. Sealing cover assembly;

[0053] 511, first sealing cover; 512, second sealing cover; 513, connecting piece; 514, third sealing cover;

[0054] 52. Inspection parts;

[0055] 200. HVAC equipment outdoor unit; 201. Compressor assembly. DETAILED DESCRIPTION

[0056] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0057] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0058] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0059] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0060] like Figures 1 to 9 As shown, according to an embodiment of the present invention, a HVAC equipment indoor unit 100 is proposed. The HVAC equipment indoor unit 100 includes a heat exchange component 40 and a detection component 50.

[0061] Specifically, the heat exchange assembly 40 has a first end and a second end, and the first end and the second end are respectively arranged on opposite sides of the heat exchange assembly 40. The heat exchange assembly 40 includes a heat exchange tube 41, the number of which is at least one, and each heat exchange tube 41 has a body at the first end and the second end, wherein the body of the heat exchange tube 41 at the first end is a bending area 411, the number of which is at least one, and the body of the heat exchange tube 41 at the second end is a refrigerant connection end, which is used to communicate with the compressor assembly 201 of the outdoor unit 200 of the HVAC equipment.

[0062] Furthermore, the detection component 50 includes a refrigerant leakage detection component 52 and a sealing cover component 51, wherein the sealing cover component 51 can form a closed space, and the refrigerant leakage detection component 52, the bending area 411 of each heat exchange tube 41 and the refrigerant connection end of each heat exchange tube 41 are respectively arranged in the closed space.

[0063] It should be understood that the heat exchange assembly 40 is arranged in the indoor unit 100 of the HVAC equipment, and a refrigerant circulates in the heat exchange tube 41 thereof. The refrigerant exchanges heat with the indoor space through the heat exchange tube 41, thereby adjusting the temperature of the indoor space. In order to meet the requirements of environmental protection, the refrigerant in the heat exchange tube 41 usually uses a flammable refrigerant (such as R454B). When the refrigerant leaks, the flammable refrigerant can easily enter the room. When the flammable refrigerant enters the room and reaches a certain leakage amount, the flammable refrigerant will explode when it encounters an open flame, thereby bringing safety hazards to the user's use. In order to monitor the leaking refrigerant, a refrigerant leakage detection component 52 is installed on the indoor unit 100 of the HVAC equipment, and the refrigerant leakage detection component 52 is used to detect the leakage of the refrigerant to improve the safety of the user's use of the indoor unit 100 of the HVAC equipment.

[0064] In the present application, a closed space refers to a space that is not connected to the outside world. When refrigerant leakage occurs in the heat exchange tube 41, the leaked refrigerant is contained in the closed space, thereby reducing the leakage of refrigerant to the outside world and improving the safety of user use.

[0065] According to the HVAC equipment outdoor unit 200 of the present invention, the refrigerant connection end and the bending area 411 of the heat exchange tube 41 are positions where the refrigerant is easy to leak. The refrigerant connection end and the bending area 411 are arranged in a confined space, so that the refrigerant leakage can be reduced, so that the user's safety can be improved. The refrigerant leakage detection member 52 is arranged in the confined space. When the refrigerant leaks in the bending area 411 and / or the refrigerant connection end of the heat exchange tube 41, the refrigerant leakage detection member 52 can effectively detect it, thereby realizing multi-position monitoring of a refrigerant detection member 52, thereby reducing the number of refrigerant leakage detection members 52, so that the manufacturing cost of the HVAC equipment indoor unit 100 is effectively reduced.

[0066] In the present application, a closed space may be formed inside the sealing cover assembly 51 (ie, the sealing cover assembly 51 itself forms an independent closed space), and the closed space may also be enclosed by the sealing cover assembly 51 and other structures of the indoor unit 100 of the HVAC equipment.

[0067] It should be pointed out that if Figure 5 or Figure 8 As shown, in the present application, the number of heat exchange tubes 41 can be one, two, three, four, five, six, seven, etc. When the number of heat exchange tubes 41 is greater than one, all of the heat exchange tubes 41 are arranged side by side between the first end and the second end of the heat exchange component 40. Arranging multiple heat exchange tubes 41 can improve the heat exchange efficiency of the heat exchange component 40, thereby effectively improving the cooling or heating performance of the indoor unit 100 of the HVAC equipment.

[0068] In this application, if Figure 3 or Figure 7 As shown, the bending area 411 of each heat exchange tube 41 can be one, two, three, four, five, six, seven, etc., and the number of the bending areas 411 can be set according to specific needs. The bending area 411 is set on the heat exchange tube 41, so that the volume occupied by the heat exchange tube 41 can be reduced, and then the volume of the heat exchange component 40 in the HVAC equipment outdoor unit 200 can be reduced, so that the space utilization rate of the HVAC equipment outdoor unit 200 is effectively improved. At the same time, the material of the heat exchange tube 41 can be aluminum, copper, iron or stainless steel, etc.

[0069] In addition, the shape of the bending area 411 may be U-shaped, W-shaped, V-shaped, etc. In the present application, the shape of the bending area 411 is U-shaped to reduce the possibility of leakage of the refrigerant due to damage in the bending area 411 .

[0070] In addition, in this application, if Figure 6 As shown, the number of refrigerant leakage detection components 52 is one, and the setting position of the refrigerant leakage detection component 52 can be any position in the confined space. For example, the refrigerant leakage detection component 52 can be set on a side of the confined space adjacent to the first end of the heat exchange component 40; the refrigerant leakage detection component 52 can also be set on a side of the confined space adjacent to the second end of the heat exchange component 40, and the refrigerant leakage detection component 52 can also be set in the confined space between the first end and the second end of the heat exchange component 40.

[0071] At the same time, the refrigerant leakage detection component 52 is a refrigerant sensor, which is used to detect the concentration of refrigerant leakage and feed back the detected data to the control device of the HVAC equipment indoor unit 100. The control device receives the refrigerant leakage data detected by the refrigerant sensor and compares the refrigerant leakage data with the safety threshold. When the refrigerant leakage reaches or exceeds the safety threshold, the control device controls the HVAC equipment indoor unit 100 to execute actions such as stopping operation to reduce the safety hazards caused by refrigerant leakage.

[0072] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the sealing cover assembly 51 includes a first sealing cover 511, a second sealing cover 512 and a connecting piece 513. The first sealing cover 511 is correspondingly arranged at the first end of the heat exchange assembly 40, the second sealing cover 512 is correspondingly arranged at the second end of the heat exchange assembly 40, and the connecting piece 513 is arranged between the first sealing cover 511 and the second sealing cover 512.

[0073] Specifically, the first sealing cover 511 forms a first part of the enclosed space at the first end of the heat exchange component 40, the second sealing cover 512 forms a second part of the enclosed space at the second end of the heat exchange component 40, and the connecting piece 513 has a through connecting channel, which constitutes the third part of the enclosed space. The first part, the third part and the second part are connected in sequence, and the refrigerant leakage detection component 52 can be set in the first part, the second part, or the third part.

[0074] Among them, the bending area 411 of each heat exchange tube 41 located at the first end of the heat exchange component 40 is accommodated in the first part of the enclosed space, and the refrigerant connection end of each heat exchange tube 41 located at the second end of the heat exchange component 40 is accommodated in the second part of the enclosed space.

[0075] The first part of the enclosed space is used to accommodate the bending area 411 of the heat exchange tube 41. When the bending area 411 of the heat exchange tube 41 leaks, the leaked refrigerant is accommodated by the first part of the enclosed space. At the same time, the second part of the enclosed space is used to accommodate the refrigerant connecting end of the heat exchange tube 41. When the refrigerant connecting end of the heat exchange tube 41 leaks, the leaked refrigerant is accommodated by the second part of the enclosed space. Since the first part and the second part are connected through the third part, the refrigerant leaked from the first part and the second part can be collected with each other. Therefore, the refrigerant leakage detection component 52 is set in any one of the first part, the second part and the third part, and the refrigerant leakage can be detected, so that one refrigerant leakage detection component 52 can monitor multiple leakage positions, thereby effectively reducing the number of refrigerant leakage detection components 52, and further reducing the manufacturing cost of the indoor unit 100 of the HVAC equipment.

[0076] It should be understood that when refrigerant leakage occurs at the refrigerant connection end and the bent end of the heat exchange tube 41, the leaked refrigerant remains in a closed space, thereby reducing the leakage of refrigerant into the room and further improving the safety of users during use.

[0077] It should be pointed out that in the present application, the first part of the enclosed space can be formed inside the first sealing cover 511 (that is, the first sealing cover 511 itself forms an independent enclosed space), and the first part of the enclosed space can also be enclosed by the first sealing cover 511 and other structures of the HVAC equipment indoor unit 100.

[0078] In addition, the second part of the enclosed space can be formed inside the second sealing cover 512 (that is, the second sealing cover 512 itself forms an independent enclosed space), and the second part of the enclosed space can also be enclosed by the second sealing cover 512 and other structures of the HVAC equipment indoor unit 100.

[0079] In addition, the third part of the enclosed space can be formed inside the connecting piece 513 (that is, the connecting piece 513 itself forms an independent enclosed space), and the third part of the enclosed space can also be surrounded by the connecting piece 513 and other structures of the indoor unit 100 of the HVAC equipment.

[0080] In some embodiments of the present invention, Figures 1 to 3 As shown, in the HVAC equipment 1000, it also includes a mounting frame 10 having a first side plate 11, and the heat exchange component 40 is installed on the mounting frame 10, and each heat exchange tube 41 of the heat exchange component 40 is respectively arranged through the first side plate 11, and the bending area 411 of each heat exchange tube 41 protrudes out of the first side surface 111 of the first side plate 11, and the first sealing cover 511 has an opening, and the opening of the first sealing cover 511 is against the first side surface 111 of the first side plate 11, and the joint position between the opening of the first sealing cover 511 and the first side surface 111 is sealed and connected, and the first side surface 111 and the first sealing cover 511 together enclose a first part of the enclosed space.

[0081] Specifically, in the present application, the first sealing cover 511 is a half-shell structure with an opening, and the bending area 411 of the heat exchange tube 41 protrudes from the first side surface 111 of the first side plate 11 (the other parts of the heat exchange tube 41 are located on the side of the first side plate 11 away from the first side surface 111). At this time, when the opening of the first sealing cover 511 is buckled on the first side surface 111, a space for accommodating the bending area 411 of the heat exchange tube 41 can be formed, and this space is the first part of the sealed space. The structure of the first part of the enclosed space formed by the first sealing cover 511 and the first side surface 111 of the first side plate 11 is simple, easy to process and manufacture, and can effectively reduce the manufacturing cost of the HVAC equipment 1000.

[0082] It should be noted that the first sealing cover 511 can be processed in one piece, or it can be assembled after split processing. In the present application, the first sealing cover 511 is processed in one piece, and at the same time, the first sealing cover 511 can be a metal part or a non-metal part. When the first sealing cover 511 is a metal part, the first sealing cover 511 can be processed and manufactured by casting or stamping; when the first sealing cover 511 is a non-metal part, the non-metal part needs to meet the requirements of the 5VA flame retardant grade, for example, it can be a plastic or rubber part (such as the flame retardant grade of fireproof PC reaches 5VA level models including SABIC's LUX7430C, LUX7630C, LUX9130T, LUX9230T, LUX9610, CFR9111, CFR7930, EXL9330, 945A, etc., Covestro's 6485, 6487, 6555, 6557, etc.).

[0083] In addition, the first side surface 111 of the first side plate 11 is a plane, the opening of the first sealing cover 511 is in contact with the first side surface 111, and the first side surface 111 and the first sealing cover 511 are sealed at the joint position, wherein the sealing method includes but is not limited to applying sealant or setting a sealing gasket.

[0084] In addition, a first flange structure can be provided at the opening position of the first sealing cover 511, and the first flange structure abuts against the first side surface 111, thereby increasing the contact area between the first sealing cover 511 and the first side surface 111, so that the sealing performance between the first sealing cover 511 and the first side surface 111 can be effectively improved.

[0085] Furthermore, the connection method between the first side surface 111 of the first side surface 111 of the mounting frame 10 and the first sealing cover 511 includes but is not limited to welding, screw connection, riveting, bonding or clamping, etc.

[0086] By setting the connection method between the first sealing cover 511 and the first side panel 11, the connection strength between the first sealing cover 511 and the first side panel 11 can be effectively improved, thereby reducing the situation where the first part of the enclosed space is connected to the indoor space due to loosening or falling off of the first sealing cover 511, thereby further improving the safety of users during use.

[0087] Exemplarily, the first sealing cover 511 is connected to the first side plate 11 by screws, wherein a first flange structure is provided at the connection position between the first sealing cover 511 and the first side plate 11, the first flange structure abuts against the first side surface 111, and screws are screwed at the abutment position between the first flange structure and the first side surface 111. In addition, a sealing structure (such as a sealing gasket or a sealant, etc.) is provided between the first flange structure and the first side surface 111 to reduce the possibility of the first part being connected to the room.

[0088] Exemplarily, the first sealing cover 511 is welded to the first side plate 11, wherein the connection position between the first sealing cover 511 and the first side plate 11 is fully welded, and the first sealing cover 511 is connected and fixed by welding and the strength of the connection position can be improved. The full welding method can improve the sealing of the connection position to reduce the possibility of the first part being connected to the indoor room.

[0089] In some embodiments of the present invention, Figures 1 to 6As shown, in the HVAC equipment 1000, it also includes a mounting frame 10 with a second side plate 12, the heat exchange component 40 is installed on the mounting frame 10, and each heat exchange tube 41 of the heat exchange component 40 is respectively arranged through the second side plate 12, and the refrigerant connection end of each heat exchange tube 41 protrudes from the second side surface 121 of the second side plate 12, the second sealing cover 512 has an opening, the opening of the second sealing cover 512 abuts against the second side surface 121 of the second side plate 12, and the joint position between the opening of the second sealing cover 512 and the second side surface 121 is sealed and connected, and the second side surface 121 and the second sealing cover 512 together enclose the second part of the enclosed space.

[0090] Specifically, in the present application, the second sealing cover 512 is a half-shell structure with an opening, and the refrigerant connection end of the heat exchange tube 41 protrudes from the second side surface 121 of the second side plate 12 (the other part of the heat exchange tube 41 is located on the side of the second side plate 12 away from the second side surface 121). At this time, when the opening of the second sealing cover 512 is buckled on the second side surface 121, a space for accommodating the refrigerant connection end of the heat exchange tube 41 can be formed, and this space is the second part of the sealed space. The structure of the second part of the enclosed space formed by the second sealing cover 512 and the second side surface 121 of the second side plate 12 is simple, easy to process and manufacture, and can effectively reduce the manufacturing cost of the HVAC equipment 1000.

[0091] It should be noted that the second sealing cover 512 can be processed in one piece, or it can be assembled after split processing. In the present application, the second sealing cover 512 is processed in one piece, and at the same time, the second sealing cover 512 can be a metal part or a non-metal part. When the second sealing cover 512 is a metal part, the second sealing cover 512 can be processed and manufactured by casting or stamping; when the second sealing cover 512 is a non-metal part, the non-metal part needs to meet the requirements of the 5VA flame retardant grade, for example, it can be a plastic or rubber part (such as the flame retardant grade of fireproof PC reaches 5VA level models including SABIC's LUX7430C, LUX7630C, LUX9130T, LUX9230T, LUX9610, CFR9111, CFR7930, EXL9330, 945A, etc., Covestro's 6485, 6487, 6555, 6557, etc.).

[0092] In addition, the second side surface 121 of the second side plate 12 is a plane, the opening of the second sealing cover 512 is in contact with the second side surface 121, and the second side surface 121 and the second sealing cover 512 are sealed at the joint position, wherein the sealing method includes but is not limited to applying sealant or setting a sealing gasket.

[0093] In addition, a second flange structure can be provided at the opening position of the second sealing cover 512, and the second flange structure abuts against the second side surface 121, thereby increasing the contact area between the second sealing cover 512 and the second side surface 121, so that the sealing performance between the second sealing cover 512 and the second side surface 121 can be effectively improved.

[0094] Furthermore, the connection method between the second side surface 121 of the second side surface 121 of the mounting frame 10 and the second sealing cover 512 includes but is not limited to welding, screw connection, riveting, bonding or clamping, etc.

[0095] By setting the connection method between the second sealing cover 512 and the second side panel 12, the connection strength between the second sealing cover 512 and the second side panel 12 can be effectively improved, thereby reducing the situation where the second part of the enclosed space is connected to the indoor space due to loosening or falling off of the second sealing cover 512, thereby further improving the safety of users during use.

[0096] Exemplarily, the second sealing cover 512 is connected to the second side plate 12 by screws, wherein a second flange structure is provided at the connection position between the second sealing cover 512 and the second side plate 12, the second flange structure abuts against the second side surface 121, and screws are screwed at the abutment position between the second flange structure and the second side surface 121. In addition, a sealing structure (such as a sealing gasket or a sealant, etc.) is provided between the second flange structure and the second side surface 121 to reduce the possibility of the second part being connected to the room.

[0097] Exemplarily, the second sealing cover 512 is welded to the second side plate 12, wherein the connection position between the second sealing cover 512 and the second side plate 12 is fully welded, and the second sealing cover 512 is connected and fixed by welding and the strength of the connection position can be improved. The full welding method can improve the sealing of the connection position to reduce the possibility of the second part being connected to the indoor room.

[0098] It should be pointed out that in the present application, the second side plate 12 is arranged in parallel with the first side plate 11, and the first side surface 111 of the first side plate 11 is arranged away from the second side surface 121 of the second side plate 12, the heat exchange assembly 40 is installed between the first side plate 11 and the second side plate 12, and the refrigerant connecting pipe of the heat exchange tube 41 of the heat exchange assembly 40 protrudes from the second side surface 121 of the second side plate 12, and the bending area 411 of the heat exchange tube 41 protrudes from the first side surface 111 of the first side plate 11. Among them, the heat exchange tube 41 is arranged through the first side plate 11, and the joint position between the heat exchange tube 41 and the first side plate 11 is sealed (through a tube expansion process or a sealant, etc.), and the heat exchange tube 41 is arranged through the second side plate 12, and the joint position between the heat exchange tube 41 and the second side plate 12 is sealed (through a tube expansion process or a sealant, etc.).

[0099] In some embodiments of the present invention, Figure 5 and Figure 6 As shown, the heat exchange assembly 40 includes a heat exchange tube 41, and the number of the heat exchange tube 41 is at least one. Each heat exchange tube 41 is provided with a bending area 411 (at least one) at the first end of the heat exchange assembly 40, and a refrigerant connection end is provided at the second end of the heat exchange assembly 40. The refrigerant connection end of each heat exchange tube 41 includes an output end and an input end, the input end is used to communicate with the compressor assembly 201 and for the refrigerant to flow into the heat exchange tube 41, and the output end is used to communicate with the compressor assembly 201 and for the refrigerant to flow out.

[0100] Furthermore, if Figure 5 and Figure 6 As shown, the heat exchange assembly 40 also includes an output pipe 43 and an input pipe 42, wherein the input pipe 42 is used to be connected to the compressor assembly 201 of the HVAC equipment outdoor unit 200 and is used for the outflow of the refrigerant in the compressor assembly 201, and the output pipe 43 is used to be connected to the compressor assembly 201 of the HVAC equipment outdoor unit 200 for the refrigerant to flow back to the compressor assembly 201. The input pipe 42 is connected to the input end of each heat exchange tube 41, and the output pipe 43 is connected to the output end of each heat exchange tube 41.

[0101] Among them, when the number of heat exchange tubes 41 is multiple, the input pipe 42 is connected to the input end of each heat exchange tube 41 through the input distribution component 44. The input distribution component 44 can make the refrigerant entering each heat exchange tube 41 more uniform, thereby improving the heat exchange uniformity of the heat exchange component 40. The output pipe 43 is connected to the output end of each heat exchange tube 41 through the output collection component 45. The output collection component 45 can realize the smooth reflux of each heat exchange tube 41, so that the flow smoothness of the refrigerant is improved.

[0102] It should be noted that the input pipe 42 is connected to the input distribution member 44 by welding, and the input end of each heat exchange tube 41 is also connected to the input distribution member 44 by welding. Similarly, the output pipe 43 is connected to the output distribution member by welding, and the output end of each heat exchange tube 41 is also connected to the output distribution member by welding. Among them, the refrigerant is prone to leakage at the welding position, so the welding position is set in a closed space. When the refrigerant leaks at the welding position, the closed space can contain the leaked refrigerant, thereby reducing the leakage of the refrigerant into the room.

[0103] In some embodiments of the present invention, Figure 5 and Figure 6As shown, in the HVAC equipment 1000, it also includes a mounting frame 10 with a connecting plate, and a heat exchange component 40 is installed on the mounting frame 10, the heat exchange component 40 has a first end and a second end arranged oppositely, the connecting plate is located at the second end of the heat exchange component 40, and the heat exchange component 40 is arranged between the first side plate 11 and the second side plate 12 of the mounting frame 10, each heat exchange tube 41 is arranged to pass through the first side plate 11 and the second side plate 12 respectively, and the bending area 411 of each heat exchange tube 41 protrudes from the first side surface 111 of the first side plate 11, and the refrigerant connection end of each heat exchange tube 41 protrudes from the second side surface 121 of the second side plate 12.

[0104] Among them, the input pipe 42 and the output pipe 43 of the heat exchange component 40 are respectively connected to the refrigerant connection end of each heat exchange tube 41, and the third sealing cover 514 of the sealing cover assembly 51 has an opening. The opening of the third sealing cover 514 abuts against the third side surface of the connecting plate, and the combination position between the opening of the third sealing cover 514 and the third side surface is sealed and connected, and the third side surface and the third sealing cover 514 together form a fourth part of the enclosed space.

[0105] Specifically, in the present application, the third sealing cover 514 is a half-shell structure with an opening, and the input pipe 42 and the output pipe 43 are located on one side of the third side surface of the connecting plate. At this time, when the opening of the third sealing cover 514 is buckled on the third side surface, a space for accommodating the input pipe 42 and the output pipe 43 can be formed, and this space is the fourth part of the sealed space. The structure of the fourth part of the enclosed space formed by the third sealing cover 514 and the third side surface of the third side plate is simple, easy to process and manufacture, and can effectively reduce the manufacturing cost of the HVAC equipment 1000.

[0106] It should be noted that the third sealing cover 514 can be processed in one piece, or it can be assembled after split processing. In the present application, the third sealing cover 514 is processed in one piece, and at the same time, the third sealing cover 514 can be a metal part or a non-metal part. When the third sealing cover 514 is a metal part, the third sealing cover 514 can be processed and manufactured by casting or stamping; when the third sealing cover 514 is a non-metal part, the non-metal part needs to meet the requirements of the 5VA flame retardant grade, for example, it can be a plastic or rubber part (such as the flame retardant grade of fireproof PC reaches 5VA level models including SABIC's LUX7430C, LUX7630C, LUX9130T, LUX9230T, LUX9610, CFR9111, CFR7930, EXL9330, 945A, etc., Covestro's 6485, 6487, 6555, 6557, etc.).

[0107] In addition, the third side surface of the connecting plate is a plane, the opening of the third sealing cover 514 is in contact with the third side surface, and the third side surface and the third sealing cover 514 are sealed at the joint position, wherein the sealing method includes but is not limited to applying sealant or setting a sealing gasket.

[0108] In addition, a third flange structure can be provided at the opening position of the third sealing cover 514, and the third flange structure abuts against the third side surface, thereby increasing the contact area between the third sealing cover 514 and the third side surface, so that the sealing performance between the third sealing cover 514 and the third side surface can be effectively improved.

[0109] In other embodiments of the present application, the third sealing cover 514 independently forms the fourth part of the sealed space.

[0110] In some embodiments of the present invention, Figure 4 and Figure 6 As shown, the second sealing cover 512 cooperates with the second side plate 12 of the mounting frame 10 and encloses and forms the second part of the sealed space. The refrigerant connection end of each heat exchange tube 41 is accommodated in the second part, wherein the refrigerant connection end of each heat exchange tube 41 is a location prone to refrigerant leakage. The refrigerant leakage detection element 52 is arranged in the second space and installed on the second sealing cover 512, which can effectively monitor the location prone to refrigerant leakage, so that when refrigerant leakage occurs, it can respond in time, thereby improving the response speed of the indoor unit 100 of the HVAC equipment when the refrigerant leaks, so that the user's safety is further improved.

[0111] Furthermore, the connection between the refrigerant leakage detection component 52 and the second sealing cover 512 is detachable. By arranging the two in a detachable manner, when the refrigerant leakage detection component 52 fails, the refrigerant leakage detection component 52 can be disassembled for maintenance or replacement, thereby reducing the maintenance cost.

[0112] The connection method between the refrigerant leakage detection component 52 and the second sealing cover 512 includes but is not limited to screw connection or clamping connection.

[0113] In some embodiments of the present invention, the heat exchange assembly 40 further includes fins mounted on the heat exchange tube 41, and the fins are thermally connected to the heat exchange tube 41. By providing the fins, the contact area between the heat exchange assembly 40 and the airflow is increased, so that the heat exchange efficiency between the heat exchange assembly 40 and the airflow is effectively improved.

[0114] It should be pointed out that the fin is a thin sheet structure, and the shape of the fin can be a flat structure or a curved structure. The material of the fin is usually aluminum or copper, etc. The structure and material of the fin are set to increase the heat exchange capacity of the fin, so that the heat exchange efficiency of the heat exchange component 40 is further improved.

[0115] In addition, the fins are connected and fixed to the heat exchange tube 41 by welding or expansion technology. At the same time, the number of fins can be one, two, three, four, five, six, seven, eight, nine or ten, etc. When the number of fins is multiple, multiple fins are arranged on the heat exchange tube 41.

[0116] In some embodiments of the present invention, Figure 2 As shown, the connecting piece 513 is arranged on the outside of the heat exchange fin. Specifically, the connecting piece 513 is a tubular piece, one end of which is connected and fixed to the first side plate 11 of the mounting frame 10 and communicates with the first part of the enclosed space, and the other end of which is connected and fixed to the second side plate 12 of the mounting frame 10 and communicates with the second part of the enclosed space. The connecting piece 513 is arranged on the outside of the heat exchange fin, so as to reduce the influence of the connecting piece 513 on the heat exchange fin, thereby facilitating the assembly of the heat exchange fin and the heat exchange tube 41.

[0117] In some embodiments of the present invention, Figure 7 and Figure 8 As shown, the connecting piece 513 is arranged through the heat exchange fin. Specifically, the connecting piece 513 is a tubular piece, which is arranged through the heat exchange fin. The connection method between the heat exchange fin and the connecting piece 513 includes but is not limited to welding, bonding or expansion tube connection. One end of the tubular structure passes through the first side plate 11 of the mounting frame 10 and is connected to the first part of the enclosed space, and the other end of the tubular structure passes through the second side plate 12 of the mounting frame 10 and is connected to the second part of the enclosed space. The connecting piece 513 is arranged to pass through the heat exchange fin, so that the space occupied by the connecting piece 513 can be reduced, so that the space utilization rate of the indoor unit 100 of the HVAC equipment is effectively improved.

[0118] In some embodiments of the present invention, Figures 1 to 6 As shown, the indoor unit 100 of the HVAC equipment further includes a mounting frame 10, a fan 20 and a water receiving pan 30. Specifically, an air inlet and an air outlet are provided on the mounting frame 10, the heat exchange assembly 40 is fixedly mounted on the mounting frame 10 and arranged between the air inlet and the air outlet, the fan 20 is fixedly mounted on the mounting frame 10, the fan 20 can be arranged between the air outlet and the heat exchange assembly 40, or the fan 20 can be arranged between the air inlet and the heat exchange assembly 40, and the water receiving pan 30 is mounted on the fixing frame, and the water receiving pan 30 is arranged below the heat exchange assembly 40.

[0119] When the HVAC equipment indoor unit 100 is running, driven by the fan 20, the indoor air enters the interior of the HVAC equipment indoor unit 100 through the air inlet and passes through the heat exchange component 40. The air exchanges heat with the heat exchange component 40 when passing through the heat exchange component 40, and the air after heat exchange enters the room through the air outlet to adjust the indoor temperature. The condensed water generated by the heat exchange component 40 during the heat exchange process is collected in the water receiving tray 30 and discharged uniformly through the drain pipe to eliminate the impact of the condensed water flowing into the room on the user's experience.

[0120] like Fig. 9 As shown, the present invention also proposes a HVAC equipment 1000, which includes a HVAC equipment outdoor unit 200 and a HVAC equipment indoor unit 100 as described above, wherein the HVAC equipment outdoor unit 200 includes a compressor assembly 201, and the refrigerant connection end of the heat exchange pipe 41 of the HVAC equipment indoor unit 100 is connected to the compressor assembly 201.

[0121] According to the HVAC equipment 1000 of the present invention, the refrigerant connection end and the bending area 411 of the heat exchange tube 41 of the HVAC equipment outdoor unit 200 are positions where the refrigerant is easy to leak. The refrigerant connection end and the bending area 411 are arranged in a confined space, so that the refrigerant leakage can be reduced, so that the user's safety can be improved. The refrigerant leakage detection member 52 is arranged in the confined space. When the refrigerant leaks in the bending area 411 and / or the refrigerant connection end of the heat exchange tube 41, the refrigerant leakage detection member 52 can effectively detect it, thereby realizing multi-position monitoring of a refrigerant detection member 52, thereby reducing the number of refrigerant leakage detection members 52, so that the manufacturing cost of the HVAC equipment indoor unit 100 is effectively reduced.

[0122] In some embodiments of the present invention, the above-mentioned HVAC equipment is an air conditioner (in other embodiments of the present invention, the HVAC equipment includes but is not limited to a multi-split unit, a heat pump, a water heater, a swimming pool unit, etc.), and the air conditioner is specifically a rooftop unit. For the structure of other parts of the rooftop unit, please refer to the prior art and will not be repeated in this application.

[0123] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A HVAC equipment indoor unit, characterized in that: The indoor unit of the HVAC equipment comprises: A heat exchange assembly, the heat exchange assembly having a first end and a second end arranged oppositely, the heat exchange assembly comprising at least one heat exchange tube, each of the heat exchange tubes having at least one bending area at the first end, each of the heat exchange tubes having a refrigerant connection end at the second end, the refrigerant connection end being used to communicate with a compressor assembly of an outdoor unit of a HVAC device; The detection component includes a sealing cover component and a refrigerant leakage detection component, the sealing cover component forms a closed space, and the refrigerant connection end, the at least one bending area and the refrigerant leakage detection component are respectively arranged in the closed space.

2. The HVAC equipment indoor unit according to claim 1, characterized in that: The sealing cover assembly comprises: a first sealing cover, the first sealing cover being arranged at the first end and forming a first part of the enclosed space at the first end, wherein the at least one bending area of ​​each heat exchange tube is arranged in the first part; a second sealing cover, the second sealing cover being arranged at the second end and forming a second part of the enclosed space at the second end, the refrigerant connection end of each of the heat exchange tubes being arranged in the second part; A connecting piece, wherein the connecting piece has a connecting channel, wherein the connecting channel constitutes a third part of the enclosed space, wherein the first part is connected to the second part through the third part, and the refrigerant leakage detection part is arranged in the first part, the second part or the third part.

3. The HVAC equipment indoor unit according to claim 2, characterized in that: The indoor unit of the HVAC equipment also includes a mounting frame, which includes a first side panel, the first end is mounted on the first side panel, each of the heat exchange tubes is arranged through the first side panel, and the at least one bending area of ​​each of the heat exchange tubes protrudes from the first side surface of the first side panel, and the first sealing cover is sealed and connected to the first side surface and surrounds the first part.

4. The HVAC equipment indoor unit according to claim 3, characterized in that: The first sealing cover and the first side plate are connected by welding, screw connection, bonding, clamping or riveting.

5. The HVAC equipment indoor unit according to claim 2, characterized in that: The indoor unit of the HVAC equipment also includes a mounting frame, which includes a second side panel, the second end is mounted on the second side panel, each of the heat exchange tubes is arranged through the second side panel, the refrigerant connection end of each of the heat exchange tubes protrudes from the second side surface of the second side panel, and the second sealing cover is sealed and connected to the second side surface and surrounds the second part.

6. The HVAC equipment indoor unit according to claim 5, characterized in that: The second sealing cover and the second side plate are connected by welding, screw connection, bonding, clamping or riveting.

7. The HVAC equipment indoor unit according to claim 2, characterized in that: The refrigerant connection end of each heat exchange tube includes an input end and an output end. The heat exchange assembly also includes an input pipe and an output pipe respectively used to communicate with the compressor assembly. The input pipe is arranged in the enclosed space and connected to the input end of each heat exchange tube. The output pipe is arranged in the enclosed space and connected to the output end of each heat exchange tube.

8. The HVAC equipment indoor unit according to claim 7, characterized in that: The indoor unit of the HVAC equipment also includes a mounting frame, which includes a connecting plate, and the connecting plate is arranged at the second end. The sealing cover assembly also includes a third sealing cover, and the third sealing cover is sealed and connected to the third side of the connecting plate and encloses a fourth part of the enclosed space. The input pipe and the output pipe are respectively arranged in the fourth part, and the fourth part is connected to the second part.

9. The HVAC equipment indoor unit according to any one of claims 2 to 8, characterized in that: The refrigerant leakage detection component is detachably mounted on the second sealing cover.

10. The HVAC equipment indoor unit according to any one of claims 1 to 8, characterized in that: The heat exchange assembly further comprises at least one heat exchange fin, and the at least one heat exchange tube is disposed through the at least one heat exchange fin and is heat-conductingly connected to the at least one heat exchange fin; Wherein, the connecting piece is arranged on the outside of the at least one heat exchange fin, or the connecting piece is arranged through the at least one heat exchange fin.

11. The HVAC equipment indoor unit according to any one of claims 1 to 8, characterized in that: The HVAC equipment indoor unit also includes: A mounting frame, on which the heat exchange assembly is mounted; A fan, the fan being mounted on the mounting frame and located on one side of the heat exchange assembly; A water receiving tray is installed on the mounting frame and is located below the heat exchange component.

12. A HVAC equipment, characterized in that: The HVAC equipment includes: A HVAC equipment outdoor unit, wherein the HVAC equipment outdoor unit comprises a compressor assembly; According to the HVAC equipment indoor unit according to any one of claims 1 to 11, the refrigerant connection end of the heat exchange tube of the HVAC equipment indoor unit is connected to the compressor assembly.

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