Heating and ventilation device indoor unit and heating and ventilation device

Abstract

A heating and ventilation device indoor unit (100) and a heating and ventilation device (1000). The heating and ventilation device indoor unit (100) comprises a heat exchange assembly (40) and a detection assembly (50), wherein the heat exchange assembly (40) has a first end and a second end opposite each other; the heat exchange assembly (40) comprises at least one heat exchange tube (41); each heat exchange tube (41) is provided with at least one bent region (411) at the first end and is provided with a refrigerant connection end at the second end; the refrigerant connection end is configured to be in communication with a compressor assembly (201) of an outdoor unit (200) of the heating and ventilation device (1000); the detection assembly (50) comprises a sealing cover assembly (51) and a refrigerant leakage detection member (52); a sealed space is formed in the sealing cover assembly (51); and the refrigerant connection end, the at least one bent region (411) and the refrigerant leakage detection member (52) are separately provided in the sealed space. When refrigerant leakage occurs in the bent region (411) and / or the refrigerant connection end of the heat exchange tube (41), the refrigerant leakage detection member (52) performs effective detection, thereby realizing multi-position monitoring by means of one refrigerant leakage detection member (52), reducing the number of refrigerant leakage detection members (52), and thus reducing the manufacturing costs of the heating and ventilation device indoor unit (100).

Description

HVAC equipment indoor unit and HVAC equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of the following patent applications, the entire contents of which are incorporated herein by reference:

[0003] A Chinese patent application entitled “HVAC equipment indoor unit and HVAC equipment”, application number 202311134441.6, submitted to the State Intellectual Property Office of China on September 4, 2023. Technical Field

[0004] The present application relates to the technical field of HVAC equipment, and in particular to a HVAC equipment and a HVAC equipment control method. Background Art

[0005] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0006] The indoor unit of existing HVAC equipment usually includes a heat exchange pipe connected to the compressor assembly. The refrigerant circulates between the compressor assembly and the heat exchange pipe, and improves the indoor temperature through heat exchange with the indoor air through the heat exchange pipe.

[0007] Heat exchange tubes are prone to refrigerant leakage in their bends and welds, particularly leaks of flammable refrigerants (such as R454B), which increases safety risks during use. Conventional technology has been used to detect leaks by installing refrigerant sensors in multiple leakage areas, thereby improving user safety. However, the installation of multiple refrigerant sensors is expensive, increasing the manufacturing cost of HVAC equipment.

[0008] Summary of the Invention

[0009] The purpose of this application is to at least solve the problem of how to reduce the number of refrigerant sensors. This purpose is achieved through the following technical solutions:

[0010] A first aspect of the present application provides an indoor unit for heating and ventilation equipment, the indoor unit comprising:

[0011] A heat exchange assembly having a first end and a second end disposed oppositely, the heat exchange assembly including at least one heat exchange tube, each heat exchange tube having at least one bending area at the first end, and each heat exchange tube having a refrigerant connection end at the second end, the refrigerant connection end being configured to communicate with a compressor assembly of an outdoor unit of a heating and ventilation equipment;

[0012] The detection component includes a sealing cover component and a refrigerant leakage detection component. The sealing cover component forms a closed space. The refrigerant connection end, the at least one bending area and the refrigerant leakage detection component are respectively arranged in the closed space.

[0013] According to the HVAC equipment outdoor unit of the present application, the refrigerant connection end and the bending area of ​​the heat exchange tube are locations where the refrigerant is prone to leaking. The refrigerant connection end and the bending area are arranged in a confined space, thereby reducing the situation of refrigerant leakage and improving the user's safety. The refrigerant leakage detection part is arranged in a confined space. When refrigerant leakage occurs in the bending area and / or the refrigerant connection end of the heat exchange tube, the refrigerant leakage detection part effectively detects 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 HVAC equipment indoor unit.

[0014] In addition, the HVAC outdoor unit according to the present application may also have the following additional technical features:

[0015] In some embodiments of the present application, the sealing cover assembly includes:

[0016] a first sealing cover, the first sealing cover being provided at the first end and forming a first portion of the enclosed space at the first end, the at least one bending region of each heat exchange tube being provided in the first portion;

[0017] a second sealing cover, the second sealing cover being provided at the second end and forming a second portion of the enclosed space at the second end, the refrigerant connection end of each of the heat exchange tubes being provided in the second portion;

[0018] A connecting piece having a connecting channel, wherein the connecting channel constitutes the third part of the enclosed space, 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.

[0019] In some embodiments of the present application, 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 heat exchange tube 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 encloses the first part.

[0020] In some embodiments of the present application, the first sealing cover and the first side plate are connected by welding, screw connection, bonding, clamping or riveting.

[0021] In some embodiments of the present application, the indoor unit of the HVAC equipment also includes a mounting bracket, the mounting bracket 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 heat exchange tube 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.

[0022] In some embodiments of the present application, the second sealing cover and the second side plate are connected by welding, screw connection, bonding, clamping or riveting.

[0023] In some embodiments of the present application, the refrigerant connection end of each heat exchange tube 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 communicate with the compressor assembly, the input pipe is arranged in the confined space and connected to the input end of each heat exchange tube, and the output pipe is arranged in the confined space and connected to the output end of each heat exchange tube.

[0024] In some embodiments of the present application, the indoor unit of the HVAC equipment also includes a mounting bracket, the mounting bracket 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.

[0025] In some embodiments of the present application, the refrigerant leakage detection component is detachably mounted on the second sealing cover.

[0026] In some embodiments of the present application, 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;

[0027] 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.

[0028] In some embodiments of the present application, the HVAC equipment indoor unit further includes:

[0029] a mounting frame, on which the heat exchange assembly is mounted;

[0030] a fan, the fan being mounted on the mounting frame and located on one side of the heat exchange assembly;

[0031] A water receiving tray is installed on the mounting frame and is located below the heat exchange component.

[0032] A second aspect of the present application provides a HVAC device, comprising:

[0033] An outdoor unit of a heating and ventilation equipment, wherein the outdoor unit of the heating and ventilation equipment comprises a compressor assembly;

[0034] 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.

[0035] According to the HVAC equipment of the present application, 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 situation of refrigerant leakage and improving the user's safety. The refrigerant leakage detection part is arranged in a confined space. When refrigerant leakage occurs in the bending area and / or the refrigerant connection end of the heat exchange tube, the refrigerant leakage detection part effectively detects 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

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the specific embodiments below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0037] FIG1 schematically shows a structural diagram of an indoor unit of a heating and ventilation equipment according to an embodiment of the present application;

[0038] FIG2 is a schematic structural diagram of the indoor unit of the HVAC equipment shown in FIG1 without the water receiving pan;

[0039] FIG3 is a schematic structural diagram of the indoor unit of the HVAC equipment shown in FIG1 with the first sealing cover removed;

[0040] FIG4 is a schematic structural diagram of the indoor unit of the HVAC equipment shown in FIG1 from another perspective;

[0041] FIG5 is a schematic structural diagram of the indoor unit of the HVAC equipment shown in FIG4 with the second sealing cover removed;

[0042] FIG6 is a schematic structural diagram of the indoor unit of the HVAC equipment shown in FIG5 from another perspective (showing the detection component);

[0043] FIG7 schematically shows a schematic structural diagram of an indoor unit of a heating and ventilation equipment according to an embodiment of the present application (partial structure is shown);

[0044] FIG8 is a schematic structural diagram of the indoor unit of the HVAC equipment shown in FIG7 from another perspective;

[0045] FIG9 schematically shows a structural block diagram of a HVAC device according to an embodiment of the present application.

[0046] The accompanying drawings are numbered as follows: 1000, HVAC equipment; 100, HVAC equipment indoor unit; 10, mounting frame; 11, first side panel; 111, first side surface; 12, second side panel; 121, second side surface; 20, fan; 30, water collection tray; 40, heat exchange assembly; 41, heat exchange tube; 411, bending area; 42, input pipe; 43, output pipe; 44, input distribution part; 45, output collection part; 50, detection assembly; 51, sealing cover assembly; 511, first sealing cover; 512, second sealing cover; 513, connecting part; 514, third sealing cover; 52, detection part; 200, HVAC equipment outdoor unit; 201, compressor assembly. DETAILED DESCRIPTION

[0047] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although 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. Rather, these embodiments are provided 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.

[0048] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only 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 "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence 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 to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0049] 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 otherwise, 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.

[0050] For ease of description, spatially 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 figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0051] As shown in FIG. 1 to FIG. 9 , according to an embodiment of the present application, 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 .

[0052] 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, and there is at least one heat exchange tube 41. Each heat exchange tube 41 has a body at the first end and the second end. The body of the heat exchange tube 41 at the first end is a bending region 411, and there are at least one bending region 411. 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.

[0053] Furthermore, the detection assembly 50 includes a refrigerant leakage detection component 52 and a sealing cover assembly 51, wherein the sealing cover assembly 51 forms 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.

[0054] 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 achieving the regulation of 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 posing a safety hazard to the user. 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 using the indoor unit 100 of the HVAC equipment.

[0055] In this 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 users.

[0056] According to the HVAC equipment outdoor unit 200 of the present application, the refrigerant connection end and the bending area 411 of the heat exchange tube 41 are locations where the refrigerant is prone to leaking. The refrigerant connection end and the bending area 411 are arranged in a confined space, thereby reducing the situation of refrigerant leakage, so that the user's safety is improved. The refrigerant leakage detection part 52 is arranged in a confined space. When refrigerant leakage occurs in the bending area 411 and / or the refrigerant connection end of the heat exchange tube 41, the refrigerant leakage detection part 52 is effectively detected, thereby realizing multi-position monitoring of a refrigerant detection part 52, thereby reducing the number of refrigerant leakage detection parts 52, so that the manufacturing cost of the HVAC equipment indoor unit 100 is effectively reduced.

[0057] In the present application, the enclosed space can be formed inside the sealing cover assembly 51 (that is, the sealing cover assembly 51 itself forms an independent enclosed space), and the enclosed space can also be enclosed by the sealing cover assembly 51 and other structures of the HVAC equipment indoor unit 100.

[0058] It should be pointed out that, as shown in Figure 5 or Figure 8, 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 heat exchange tubes 41 are arranged side by side between the first end and the second end of the heat exchange component 40. The arrangement of multiple heat exchange tubes 41 improves 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.

[0059] In the present application, as shown in FIG3 or FIG7 , each heat exchange tube 41 can have one, two, three, four, five, six, seven, or other bending regions 411, and the number of bending regions 411 can be adjusted based on specific needs. Providing the bending regions 411 on the heat exchange tube 41 reduces the volume occupied by the heat exchange tube 41, thereby reducing the volume of the heat exchange assembly 40 within the HVAC equipment outdoor unit 200, thereby effectively improving the space utilization of the HVAC equipment outdoor unit 200. Furthermore, the heat exchange tube 41 can be made of aluminum, copper, iron, or stainless steel, among others.

[0060] In addition, the shape of the bending region 411 can be U-shaped, W-shaped, V-shaped, etc. In the present application, the shape of the bending region 411 is U-shaped to reduce the possibility of refrigerant leakage caused by damage to the bending region 411.

[0061] In addition, in the present application, as shown in Figure 6, 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 the 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 the 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.

[0062] 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 leakage amount of the refrigerant reaches or exceeds the safety threshold, the control device controls the HVAC equipment indoor unit 100 to perform actions such as stopping operation to reduce the safety hazards caused by refrigerant leakage.

[0063] In some embodiments of the present application, as shown in Figures 1 and 2, 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 disposed at the first end of the heat exchange assembly 40, the second sealing cover 512 is correspondingly disposed at the second end of the heat exchange assembly 40, and the connecting piece 513 is disposed between the first sealing cover 511 and the second sealing cover 512.

[0064] Among them, the first sealing cover 511 forms the first part of the enclosed space at the first end of the heat exchange component 40, the second sealing cover 512 forms the 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.

[0065] 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.

[0066] 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 connection end of the heat exchange tube 41. When the refrigerant connection 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 refrigerants leaked from the first part and the second part are gathered together. 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 detection of refrigerant leakage is realized, and one refrigerant leakage detection component 52 is used to monitor multiple leakage locations, thereby effectively reducing the number of refrigerant leakage detection components 52, and thus reducing the manufacturing cost of the indoor unit 100 of the HVAC equipment.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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 HVAC equipment indoor unit 100.

[0071] In some embodiments of the present application, as shown in Figures 1 to 3, the HVAC equipment 1000 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 from 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 abuts 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.

[0072] In the present application, the first sealing cover 511 is a half-shell structure with an opening. The bent region 411 of the heat exchange tube 41 protrudes from the first side surface 111 of the first side plate 11 (the other portion of the heat exchange tube 41 is located on the side of the first side plate 11 facing away from the first side surface 111). When the opening of the first sealing cover 511 is buckled onto the first side surface 111, a space is formed to accommodate the bent region 411 of the heat exchange tube 41. This space is the first portion of the sealed space. The structure of the first portion 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 and easy to process and manufacture, thereby effectively reducing the manufacturing cost of the HVAC equipment 1000.

[0073] It should be noted that the first sealing cover 511 can be processed in one piece or assembled after split processing. In the present application, the first sealing cover 511 is processed in one piece. 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.).

[0074] In addition, the first side surface 111 of the first side panel 11 is a plane, the opening of the first sealing cover 511 is in contact with the first side surface 111, and the joint position between the first side surface 111 and the first sealing cover 511 is sealed, wherein the sealing method includes but is not limited to applying sealant or setting a sealing gasket.

[0075] 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 is effectively improved.

[0076] Furthermore, the connection method between 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.

[0077] 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 is 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.

[0078] For example, the first sealing cover 511 is connected to the first side panel 11 by screws, wherein a first flange structure is provided at the connection position between the first sealing cover 511 and the first side panel 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 sealant) is provided between the first flange structure and the first side surface 111 to reduce the possibility of the first portion communicating with the indoor environment.

[0079] 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 is improved. The full welding method improves the sealing of the connection position to reduce the possibility of the first part being connected to the room.

[0080] In some embodiments of the present application, as shown in Figures 1 to 6, the HVAC equipment 1000 also includes a mounting frame 10 having a second side plate 12, 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 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, and the second sealing cover 512 has an opening, and 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.

[0081] 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 portion of the heat exchange tube 41 is located on the side of the second side plate 12 facing away from the second side surface 121). When the opening of the second sealing cover 512 is buckled onto the second side surface 121, a space is formed to accommodate the refrigerant connection end of the heat exchange tube 41, which is the second part of the sealed space. 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 has a simple structure and is easy to process and manufacture, thereby effectively reducing the manufacturing cost of the HVAC equipment 1000.

[0082] It should be noted that the second sealing cover 512 can be processed in one piece or assembled after processing in a split manner. In the present application, the second sealing cover 512 is processed in one piece. 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.).

[0083] In addition, the second side surface 121 of the second side panel 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.

[0084] 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 between the second sealing cover 512 and the second side surface 121 is effectively improved.

[0085] Furthermore, the connection method between 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.

[0086] 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 is 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.

[0087] For example, the second sealing cover 512 is screwed to the second side panel 12, wherein a second flange structure is provided at the connection between the second sealing cover 512 and the second side panel 12, the second flange structure abuts the second side surface 121, and screws are screwed at the abutment between the second flange structure and the second side surface 121. In addition, a sealing structure (such as a sealing gasket or sealant) is provided between the second flange structure and the second side surface 121 to reduce the possibility of the second portion communicating with the indoor environment.

[0088] 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 is improved. The full welding method improves the sealing of the connection position to reduce the possibility of the second part being connected to the room.

[0089] It should be noted that in the present application, the second side plate 12 is arranged parallel to and spaced apart from 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 connection 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. The heat exchange tube 41 is arranged through the first side plate 11, and the joint between the heat exchange tube 41 and the first side plate 11 is sealed (by a tube expansion process or by applying sealant, etc.). The heat exchange tube 41 is arranged through the second side plate 12, and the joint between the heat exchange tube 41 and the second side plate 12 is sealed (by a tube expansion process or by applying sealant, etc.).

[0090] In some embodiments of the present application, as shown in Figures 5 and 6, the heat exchange assembly 40 includes a heat exchange tube 41, and the number of heat exchange tubes 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.

[0091] Furthermore, as shown in Figures 5 and 6, the heat exchange assembly 40 further includes an output pipe 43 and an input pipe 42. The input pipe 42 is used to connect to the compressor assembly 201 of the HVAC equipment outdoor unit 200 and is used to discharge the refrigerant from the compressor assembly 201. The output pipe 43 is used to connect to the compressor assembly 201 of the HVAC equipment outdoor unit 200 to return the refrigerant 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.

[0092] 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 is set to 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 is set to achieve smooth reflux of each heat exchange tube 41, thereby improving the flow smoothness of the refrigerant.

[0093] 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. Refrigerant leakage is prone to occur at the welding location. Therefore, the welding location is located in a confined space. If refrigerant leaks at the welding location, the confined space contains the leaked refrigerant, thereby reducing the risk of refrigerant leaking into the room.

[0094] In some embodiments of the present application, as shown in Figures 5 and 6, the HVAC equipment 1000 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 set opposite to each other, and the connecting plate is located at the second end of the heat exchange component 40. 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. 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.

[0095] 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 rests on the third side surface of the connecting plate, and the joint position between the opening of the third sealing cover 514 and the third side surface is sealed and connected. The third side surface and the third sealing cover 514 together form the fourth part of the enclosed space.

[0096] In this application, the third sealing cover 514 is a half-shell structure with an opening. The inlet pipe 42 and the outlet pipe 43 are located on one side of the third side surface of the connecting plate. When the opening of the third sealing cover 514 is snapped onto the third side surface, a space is formed to accommodate the inlet pipe 42 and the outlet pipe 43. This space is the fourth portion of the sealed space. The fourth portion of the sealed space, formed by the third sealing cover 514 and the third side surface of the third side plate, is simple in structure and easy to process and manufacture, thereby effectively reducing the manufacturing cost of the HVAC equipment 1000.

[0097] It should be noted that the third sealing cover 514 can be processed in one piece or assembled after split processing. In the present application, the third sealing cover 514 is processed in one piece. 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.).

[0098] 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 joint position between the third side surface and the third sealing cover 514 is sealed, wherein the sealing method includes but is not limited to applying sealant or setting a sealing gasket.

[0099] 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 is effectively improved.

[0100] In other embodiments of the present application, the third sealing cover 514 independently forms the fourth part of the sealed space.

[0101] In some embodiments of the present application, as shown in Figures 4 and 6, the second sealing cover 512 cooperates with the second side plate 12 of the mounting frame 10 to enclose and form a 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 component 52 is arranged in the second space and installed on the second sealing cover 512, thereby achieving effective monitoring of the location prone to refrigerant leakage, thereby responding in time when a refrigerant leak occurs, thereby improving the response speed of the HVAC equipment indoor unit 100 when a refrigerant leak occurs, and further improving user safety.

[0102] Furthermore, the connection between the refrigerant leakage detection component 52 and the second sealing cover 512 is detachable. By setting 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.

[0103] 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.

[0104] In some embodiments of the present application, the heat exchange assembly 40 further includes fins mounted on the heat exchange tubes 41, the fins being thermally connected to the heat exchange tubes 41. The provision of the fins increases the contact area between the heat exchange assembly 40 and the airflow, thereby effectively improving the heat exchange efficiency between the heat exchange assembly 40 and the airflow.

[0105] 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.

[0106] 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.

[0107] In some embodiments of the present application, as shown in Figure 2 , a connecting piece 513 is disposed outside the heat exchange fins. The connecting piece 513 is a tubular member, one end of which is fixedly attached to the first side plate 11 of the mounting frame 10 and communicates with the first portion of the enclosed space, and the other end of which is fixedly attached to the second side plate 12 of the mounting frame 10 and communicates with the second portion of the enclosed space. Placing the connecting piece 513 outside the heat exchange fins reduces their impact on the fins, thereby facilitating assembly of the fins and heat exchange tubes 41.

[0108] In some embodiments of the present application, as shown in Figures 7 and 8, a connecting piece 513 is provided through the heat exchange fins. The connecting piece 513 is a tubular member that passes through the heat exchange fins. The connection between the heat exchange fins and the connecting piece 513 may be achieved by, but is not limited to, welding, bonding, or expansion connection. One end of the tubular structure passes through the first side plate 11 of the mounting frame 10 and communicates with the first portion of the enclosed space. The other end of the tubular structure passes through the second side plate 12 of the mounting frame 10 and communicates with the second portion of the enclosed space. By arranging the connecting piece 513 to pass through the heat exchange fins, the space occupied by the connecting piece 513 is reduced, effectively improving the space utilization of the indoor unit 100 of the HVAC equipment.

[0109] In some embodiments of the present application, as shown in Figures 1 to 6, a HVAC indoor unit 100 further includes a mounting frame 10, a fan 20, and a water collection pan 30. The mounting frame 10 is provided with an air inlet and an air outlet. The heat exchange assembly 40 is mounted and fixed on the mounting frame 10 and disposed between the air inlet and the air outlet. The fan 20 is mounted and fixed on the mounting frame 10 and can be disposed between the air outlet and the heat exchange assembly 40, or between the air inlet and the heat exchange assembly 40. The water collection pan 30 is mounted on the mounting frame and disposed below the heat exchange assembly 40.

[0110] When the HVAC indoor unit 100 is operating, driven by the fan 20, indoor air enters the interior of the HVAC indoor unit 100 through the air inlet and passes through the heat exchange assembly 40. The air exchanges heat with the heat exchange assembly 40 while passing through the air outlet, thereby regulating the indoor temperature. Condensate generated by the heat exchange assembly 40 during the heat exchange process collects in the water receiving pan 30 and is discharged through the drain pipe, thereby eliminating the impact of condensate flowing into the room and affecting the user experience.

[0111] As shown in Figure 9, the present application also proposes a HVAC equipment 1000, which includes a HVAC equipment outdoor unit 200 and a HVAC equipment indoor unit 100 as described above. 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.

[0112] According to the HVAC equipment 1000 of the present application, the refrigerant connection end and the bending area 411 of the heat exchange tube 41 of the HVAC equipment outdoor unit 200 are locations where the refrigerant is prone to leaking. The refrigerant connection end and the bending area 411 are arranged in a confined space, thereby reducing the situation of refrigerant leakage, so that the user's safety is improved. The refrigerant leakage detection part 52 is arranged in a confined space. When refrigerant leakage occurs in the bending area 411 and / or the refrigerant connection end of the heat exchange tube 41, the refrigerant leakage detection part 52 is effectively detected, thereby realizing multi-position monitoring of a refrigerant detection part 52, thereby reducing the number of refrigerant leakage detection parts 52, so that the manufacturing cost of the HVAC equipment indoor unit 100 is effectively reduced.

[0113] In some embodiments of the present application, the above-mentioned HVAC equipment is an air conditioner (in other embodiments of the present application, 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 elaborated in this application.

[0114] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A heating and ventilation equipment indoor unit, wherein: 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, wherein: 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 1 or 2, wherein: 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 any one of claims 1 to 3, wherein: 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 1 or 2, wherein: 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 any one of claims 1 to 5, wherein: 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 1 or 2, wherein: 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 any one of claims 1 to 7, wherein: 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, wherein: 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 9, wherein: 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 10, wherein: 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 heating and ventilation equipment, wherein: 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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