Heating and ventilation equipment

Abstract

The application discloses a heating and ventilation equipment, relates to the technical field of heating and ventilation equipment, and aims to solve the problems of the mixed arrangement of the refrigerant pipeline and the water pipeline of the existing heating and ventilation equipment and the complex control circuit arrangement. The heating and ventilation equipment shell, the refrigerant circuit assembly, the water circuit assembly, the first electric control box and the second electric control box are characterized in that the refrigerant circuit assembly is installed in the first cavity, and the water circuit assembly is installed in the second cavity. Thus, the refrigerant circuit assembly and the water circuit assembly are installed in different cavities, and are arranged separately, so that the arrangement of the refrigerant circuit assembly and the water circuit assembly is in order, the compactness of the structure of the heating and ventilation equipment is improved, and assembly and maintenance are facilitated. At least part of the first electric control box is located in the first cavity, and the second electric control box is located in the second cavity. Thus, the electrical devices in the heating and ventilation equipment can be connected to the electric control boxes nearby, the distance of the connecting wires is shortened, the internal layout of the heating and ventilation equipment is more regular, and maintenance and repair are facilitated.

Description

Technical Field

[0001] This application relates to the field of heating, ventilation and air conditioning (HVAC) equipment technology, specifically to an HVAC device. Background Technology

[0002] Heating, ventilation, and air conditioning (HVAC) equipment is increasingly accepted by consumers due to its advantages such as good heating effect and convenient operation. However, in related technologies, the refrigerant piping and water piping of HVAC equipment are arranged in a mixed and intertwined manner, and the control circuit layout is complex, which not only makes assembly cumbersome and inefficient, but also makes later maintenance difficult. Summary of the Invention

[0003] The main purpose of this application is to provide a heating, ventilation, and air conditioning (HVAC) device that addresses the technical problems of existing HVAC devices, such as the cross-mixed arrangement of refrigerant and water pipes, complex control circuit layout, cumbersome assembly, low efficiency, and difficult maintenance.

[0004] To solve the above-mentioned technical problems, the HVAC equipment proposed in this application includes:

[0005] A housing, wherein a first chamber and a second chamber are formed within the housing;

[0006] A water channel assembly is installed in the second chamber, the water channel assembly being used to form a water flow path;

[0007] A refrigerant circuit assembly is installed in the first chamber, the refrigerant circuit assembly is used to form a refrigerant flow path, and the refrigerant circuit assembly is configured to exchange heat with the water circuit assembly;

[0008] The first electrical control box is at least partially located in the first chamber;

[0009] The second electrical control box is located in the second chamber.

[0010] The HVAC equipment according to an embodiment of this application includes a housing, a refrigerant circuit assembly, a water circuit assembly, a first electrical control box, and a second electrical control box. The refrigerant circuit assembly is installed in a first chamber, and the water circuit assembly is installed in a second chamber. This separate installation of the refrigerant circuit assembly and the water circuit assembly in different chambers not only makes their arrangement more organized and improves the compactness of the HVAC equipment structure, facilitating subsequent maintenance, but also prevents water leakage from the water circuit assembly from corroding the refrigerant circuit assembly, thus improving the safety of the HVAC equipment. Furthermore, it facilitates assembly and improves the overall assembly efficiency of the HVAC equipment. At least a portion of the first electrical control box is located in the first chamber, and the second electrical control box is located in the second chamber. This arrangement allows electrical components within the HVAC equipment to be connected to the control boxes nearby, shortening the distance of connecting wires and making the internal layout of the HVAC equipment more regular, facilitating inspection and maintenance. Moreover, the separate installation of control devices facilitates heat dissipation, preventing heat concentration from causing safety accidents, and further improving the safety of the HVAC equipment.

[0011] In some possible implementations, a fan cavity is also formed within the housing, and the fan cavity, the first chamber, and the second chamber are arranged side by side; the first chamber is located between the fan cavity and the second chamber.

[0012] In some possible implementations, the HVAC equipment further includes a first partition and a second partition, both of which are installed within the housing; a first chamber is formed between the first partition and the second partition, and the second chamber is located on the side of the first partition facing away from the second partition; the fan chamber is located on the side of the second partition facing away from the first partition.

[0013] In some possible implementations, the first control box is fixed to the second partition; the second control box is fixed to the first partition.

[0014] In some possible implementations, the circuit board surface or the box body surface of the first electrical control box is parallel to the second partition; or, the circuit board surface or the box body surface of the first electrical control box forms a first angle with the second partition, the first angle being greater than 0° and less than or equal to 30°.

[0015] In some possible implementations, the circuit board surface or the box body surface of the second electrical control box is parallel to the first partition; or, the circuit board surface or the box body surface of the second electrical control box forms a second angle with the first partition, the second angle being greater than 0° and less than or equal to 30°.

[0016] In some of the possible implementations, the first partition and the second partition are parallel.

[0017] In some possible implementations, the bottom of the first electrical control box is provided with a first cable outlet; the bottom of the second electrical control box, or the side of the second electrical control box near the first electrical control box, or the side of the second electrical control box near the front panel of the HVAC equipment, is provided with a second cable outlet.

[0018] In some possible implementations, a portion of the wire leading from the first outlet hole and a portion of the wire leading from the second outlet hole are connected within the first cavity.

[0019] In some possible implementations, the first partition includes a side panel body, a front cover portion, and a rear cover portion; the side panel body is used to separate the first chamber and the second chamber; the second electrical control box is fixedly connected to the front cover portion and / or the rear cover portion, and the second electrical control box is opposite to and spaced from the side panel body to accommodate at least a portion of the water circuit assembly.

[0020] In some possible implementations, the rear cover portion includes: a rear end plate and a first fixed flange, the rear end of the side plate body is bent and extended toward the second cavity to form the rear end plate; a portion of the rear end plate away from the side plate body is bent and extended toward the front cover portion to form the first fixed flange, the first fixed flange being opposite to the side plate body; the first fixed flange is fixedly connected to the second electrical control box.

[0021] In some possible implementations, the front cover portion includes a front end plate and a side plate portion, the two sides of the front end plate being connected to the side plate portion and the side plate body respectively, the front end plate being opposite to the rear cover portion, and the side plate portion being opposite to the side plate body.

[0022] In some possible implementations, the end of the side panel away from the front end plate bends and extends toward the side panel body to form a second connecting edge; the second connecting edge is opposite to the front end plate; the end of the second connecting edge away from the side panel is bent and extends away from the front end plate to form a second fixed flange, and the second fixed flange is fixedly connected to the second electrical control box.

[0023] In some possible implementations, the first electrical control box is electrically connected to at least some of the components in the fan cavity and the first chamber, respectively; the second electrical control box is electrically connected to at least some of the components in the second chamber and the first chamber.

[0024] In some of the possible implementations, a portion of the first electrical control box is located inside the fan cavity, and a portion of the first electrical control box is located within the first cavity.

[0025] In some possible implementations, the first electrical control box is provided with a heating element facing the fan cavity. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of a portion of the structure of the HVAC equipment provided in the embodiments of this application;

[0027] Figure 2 This is a schematic diagram of the water circuit components and base of the HVAC equipment provided in the embodiments of this application;

[0028] Figure 3 yes Figure 2 Enlarged schematic diagram of region P in the middle;

[0029] Figure 4 This is a front view of the water system component of the HVAC equipment provided in the embodiments of this application;

[0030] Figure 5 This is a schematic diagram of a portion of the structure of the HVAC equipment provided in the embodiments of this application.

[0031] Explanation of icon numbers:

[0032]

[0033] Detailed Implementation

[0034] Heating, ventilation, and air conditioning (HVAC) equipment is increasingly accepted by consumers due to its advantages such as good heating effect and convenient operation. HVAC equipment typically includes a compressor, condenser, expansion valve, and outdoor heat exchanger. Taking heating mode as an example, its working process is as follows: Low-temperature, low-pressure liquid refrigerant (e.g., Freon) first absorbs heat from a high-temperature heat source (e.g., room temperature air) and vaporizes into low-pressure steam in the outdoor heat exchanger. Then, the refrigerant gas is compressed into high-temperature, high-pressure steam in the compressor. This high-temperature, high-pressure gas exchanges heat with water in the condenser, cooling and condensing into high-pressure liquid. It then passes through the expansion valve to become low-temperature, low-pressure liquid refrigerant again, and re-enters the outdoor heat exchanger. This cycle repeats continuously, achieving the heating of water.

[0035] The aforementioned HVAC equipment also includes refrigerant piping and water piping. Refrigerant piping is used to transport refrigerant, such as the refrigerant piping between the compressor and condenser, and between the compressor and the outdoor heat exchanger. Water piping is used to transport water, such as the water pipe connected to the condenser inlet, the water pipe connected to the condenser outlet, and the water pipe connected to the water pump. In related technologies, the refrigerant and water piping of HVAC equipment are often intertwined and mixed, resulting in complex control circuitry. This not only leads to cumbersome assembly and low efficiency but also makes subsequent maintenance difficult. Furthermore, leaks in the water pipes can easily corrode the refrigerant piping, causing refrigerant leaks and resulting in low safety of the HVAC equipment.

[0036] In view of this, this application provides a novel HVAC system in which the refrigerant circuit assembly and the water circuit assembly are respectively located in different chambers of the housing. This not only makes the refrigerant circuit assembly and the water circuit assembly more organized, improving the compactness of the HVAC system structure and facilitating subsequent maintenance, but also prevents water leakage from the water circuit assembly from corroding the refrigerant circuit assembly, thus improving the safety of the HVAC system. Furthermore, by setting electrical control boxes in different chambers to connect electrical components nearby, the distance of connecting wires is shortened, making the internal layout of the HVAC system more regular and facilitating inspection and maintenance.

[0037] The principles and features of this application are described below with reference to the accompanying drawings. The examples given are only for explaining this application and are not intended to limit the scope of this application.

[0038] Figure 1 This is a schematic diagram of a portion of the structure of the HVAC equipment provided in the embodiments of this application.

[0039] First, it should be noted that in the embodiments of this application, the directional term "front" refers to the side where the fan exhaust hood is installed, and the directional term "rear" is opposite to the directional term "front"; the directional terms "bottom" and "lower" refer to the side facing the ground, and the directional terms "top" and "upper" refer to the side away from the ground.

[0040] The HVAC equipment of this application embodiment can be used for heating or cooling. The HVAC equipment of this application embodiment can be an air conditioner, a multi-split central air conditioning system, a heat pump system, a swimming pool machine, etc. The structure and function of the HVAC equipment of this application embodiment are further described below with reference to the accompanying drawings.

[0041] Combination Figure 1 This application provides a heating, ventilation and air conditioning (HVAC) device, including: a housing 100, a refrigerant circuit assembly 200, a water circuit assembly 300, a first electrical control box 610, and a second electrical control box 620.

[0042] The housing 100 in this embodiment provides installation space for various components. In some possible implementations, the housing 100 includes a base 110, a front panel, a rear side panel, a left side panel, a right side panel, and a top panel. The front panel and rear side panel are arranged opposite each other and are respectively located on the front and rear sides of the base 110. The left side panel and right side panel are respectively located on the left and right sides of the base 110. The top panel is located on top of the front panel, rear side panel, left side panel, and right side panel, and is arranged opposite to the base 110. An air outlet hood is provided on the front panel, opposite to the base 110, for discharging airflow. Air inlet hoods are provided on some side panels of the housing 100, for example, on the rear side panel or the left side panel, to allow air to enter the interior of the housing 100 and thus come into contact with the outdoor heat exchanger 520 for heat exchange.

[0043] In this embodiment, the water circuit assembly 300 forms a water flow path for transporting water; the refrigerant circuit assembly 200 forms a refrigerant flow path for transporting refrigerant; the refrigerant circuit assembly 200 is configured to exchange heat with the water circuit assembly 300. In this embodiment, the casing 100 has a first chamber 101 and a second chamber 102 for housing the refrigerant circuit assembly 200 and the water circuit assembly 300, wherein the refrigerant circuit assembly 200 is installed in the first chamber 101 and the water circuit assembly 300 is installed in the second chamber 102. Thus, in this embodiment of the HVAC equipment, the refrigerant circuit assembly 200 and the water circuit assembly 300 are installed in different chambers, which not only makes the arrangement of the refrigerant circuit assembly 200 and the water circuit assembly 300 more organized, improving the compactness of the HVAC equipment structure and facilitating subsequent maintenance; but also prevents water leakage from the water circuit assembly 300 from corroding the refrigerant circuit assembly 200, improving the safety of the HVAC equipment.

[0044] The first electrical control box 610 and the second electrical control box 620 are both used to control the operating status of the HVAC equipment. At least a portion of the first electrical control box 610 is located within the first chamber 101, and the second electrical control box 620 is located within the second chamber 102. This arrangement not only allows electrical components within the HVAC equipment to be connected to the control boxes nearby, shortening the distance of connecting wires and making the internal layout of the HVAC equipment more regular, facilitating inspection and maintenance, but also allows for separate installation of control components, facilitating heat dissipation, avoiding heat concentration that could lead to safety accidents, and improving the safety of the HVAC equipment.

[0045] Continue to refer to Figure 1 The housing 100 also forms a fan cavity 103, which is used to install a fan 510. The HVAC equipment in this embodiment of the application also includes an outdoor heat exchanger 520, which is connected to the refrigerant circuit assembly 200; the fan 510 is used to drive airflow so that the refrigerant in the refrigerant circuit assembly 200 exchanges heat with the air in the outdoor heat exchanger 520.

[0046] The fan chamber 103, the first chamber 101, and the second chamber 102 are arranged side by side to facilitate the inspection and maintenance of the internal components. The casing 100 has a large dimension along its length, providing ample space for arrangement. Optionally, the fan chamber 103, the first chamber 101, and the second chamber 102 are arranged side by side along the length of the casing 100.

[0047] In some possible embodiments, the first chamber 101 is located between the fan chamber 103 and the second chamber 102. In this case, the refrigerant circuit assembly 200 is installed between the fan 510 and the water circuit assembly 300. This arrangement allows the water circuit assembly 300 to be located on the right side of the casing 100, facilitating pipe maintenance and connection of inlet and outlet water circuits. Moreover, the refrigerant circuit assembly 200 is located in the middle, which can simultaneously connect to the water-side heat exchanger 310 of the water circuit assembly 300 and the outdoor heat exchanger 520 of the fan chamber 103 to achieve refrigerant circulation. This helps to shorten the refrigerant flow pipeline, thereby facilitating the compact design of the HVAC equipment structure and reducing costs.

[0048] In some other possible embodiments, the second chamber 102 is located between the fan chamber 103 and the first chamber 101, in which case the water circuit assembly 300 is installed between the fan 510 and the refrigerant circuit assembly 200.

[0049] In some possible implementations, part of the first electrical control box 610 is located inside the fan cavity 103, and part of the first electrical control box 610 is located inside the first chamber 101. This arrangement facilitates the electrical connection of the first electrical control box 610 to the devices in the fan cavity 103 and the first chamber 101, respectively, which helps to shorten the cable length and facilitates the wiring layout and maintenance. It also avoids the problem of too many lines being routed between the first chamber 101 and the fan cavity 103, which would lead to complex wiring and affect the convenience of layout and maintenance.

[0050] Based on the above-mentioned orientation arrangement, the first electrical control box 610 of this application embodiment is electrically connected to at least some components in the fan cavity 103 and the first chamber 101. For example, the first electrical control box 610 is electrically connected to the fan 510 in the fan cavity 103, the detection device installed in the outdoor heat exchanger 520, etc., and the first electrical control box 610 is electrically connected to at least some components in the refrigerant circuit assembly 200 in the first chamber 101. This arrangement helps to shorten the cable length and facilitates the layout and maintenance of the line.

[0051] The second electrical control box 620 of this application embodiment is electrically connected to at least some components in the second chamber 102 and the first chamber 101. For example, the second electrical control box 620 is electrically connected to the components of the water circuit assembly 300 in the second chamber 102, and the second electrical control box 620 is electrically connected to at least some components of the refrigerant circuit assembly 200 in the first chamber 101. This arrangement helps to shorten the cable length, and the component connection lines do not need to cross long distances, which facilitates the layout and maintenance of the lines.

[0052] Thus, some components of the refrigerant circuit assembly 200 within the first chamber 101 can be electrically connected to the first control box 610, and some components can be connected to the second control box 620. For example, components in the refrigerant circuit assembly 200 closest to the first control box 610 are electrically connected to the first control box 610; components in the refrigerant circuit assembly 200 closest to the second control box 620 are electrically connected to the second control box 620. Of course, in some cases, certain components of the refrigerant circuit assembly 200 can be electrically connected to both the first control box 610 and the second control box 620 simultaneously.

[0053] In this embodiment, a first partition 400 and a second partition 500 are provided to form a first chamber 101, a second chamber 102, and a fan chamber 103. (Continuing to refer to...) Figure 1 The first partition 400 and the second partition 500 are both installed inside the housing 100. There are various installation methods, including but not limited to screw connection, snap-fit, welding, hinge connection, etc.

[0054] The first partition 400 and the second partition 500 are spaced apart to form a first chamber 101, and the second chamber 102 is located on the side of the first partition 400 opposite to the second partition 500; the fan chamber 103 is located on the side of the second partition 500 opposite to the first partition 400. Figure 1 In the orientation of the partition, the second chamber 102 is located to the right of the first partition 400, the first chamber 101 is located between the first partition 400 and the second partition 500, and the fan chamber 103 is located to the left of the second partition 500. Thus, the refrigerant path assembly 200 and the water path assembly 300 are located on opposite sides of the first partition 400 and are thus separated. By separating the fan chamber 103 and the first chamber 101 with the second partition 500, the airflow and refrigerant flow paths are arranged separately, which not only facilitates maintenance but also avoids mutual interference from vibrations.

[0055] In some possible implementations, the first partition 400 and the second partition 500 are parallel, thus making the space inside the first chamber 101 regular and facilitating the arrangement of the refrigerant circuit assembly 200; and also facilitating the arrangement of the first partition 400 and the second partition 500.

[0056] Continue to refer to Figure 1 The first electrical control box 610 is fixed to the second partition 500. The fixing method of the first electrical control box 610 can be one or a combination of the following fixing methods: threaded connection, snap-fit, hinge, hinge connection, etc. For example, the first electrical control box 610 is fixed to the second partition 500 by screws, and / or, the first electrical control box 610 is snap-fitted to the second partition 500.

[0057] The second electrical control box 620 is fixed to the first partition 400. The fixing method of the second electrical control box 620 can be one or a combination of the following fixing methods: threaded connection, snap-fit, hinge, hinge connection, etc. For example, the second electrical control box 620 is fixed to the first partition 400 by screws, and / or the second electrical control box 620 is snap-fitted to the first partition 400.

[0058] The installation position relationship between the first electrical control box 610 and the second electrical control box 620 is further explained below.

[0059] The first electrical control box 610 and the control devices disposed within it, as described in this embodiment, include, but are not limited to, electrical components such as a main control board. The circuit board surface or the box body surface of the first electrical control box 610 is parallel to the second partition 500, thus the angle between the circuit board surface or the box body surface of the first electrical control box 610 and the second partition 500 is 0°. This arrangement improves the compactness of the HVAC equipment structure. When the box body surface of the first electrical control box 610 is parallel to the second partition 500, the circuit board surface inside the first electrical control box 610 can be parallel to the second partition 500 or form a first angle with it.

[0060] Alternatively, the circuit board surface or box surface of the first electrical control box 610 forms a first angle with the second partition 500, where the first angle is greater than 0° and less than or equal to 30°. In this arrangement, the first electrical control box 610 is tilted relative to the second partition 500. The first electrical control box 610 can tilt towards the fan cavity 103 or towards the first chamber 101. This arrangement increases the surface area of ​​the first electrical control box 610, facilitating heat dissipation. It should be noted that when multiple circuit boards are installed inside the first electrical control box 610, the positional relationship between each circuit board and the second partition 500 can be the same; for example, all circuit boards can be parallel to the second partition 500. Of course, the positional relationship between each circuit board and the second partition 500 can also be different; for example, at least one circuit board can be parallel to the second partition 500, and at least one circuit board can have a first angle with the second partition 500.

[0061] In some possible implementations, a heat-generating component is provided inside the first electrical control box 610, with the heat-generating component facing the fan cavity 103. This facilitates air cooling by utilizing the airflow within the fan cavity 103, thereby improving the heat dissipation effect of the first electrical control box 610.

[0062] The second electrical control box 620 of this application embodiment includes a housing and control devices disposed within the housing. These control devices include, but are not limited to, electrical components such as a main control board. The circuit board surface or housing surface of the second electrical control box 620 is parallel to the first partition 400, thus the angle between the circuit board surface or housing surface of the second electrical control box 620 and the first partition 400 is 0°. This arrangement improves the compactness of the HVAC equipment structure. When the housing surface of the second electrical control box 620 is parallel to the first partition 400, the circuit board surface inside the second electrical control box 620 can be parallel to the first partition 400 or form a first angle with the first partition 400.

[0063] Alternatively, the circuit board surface or box surface of the second electrical control box 620 can form a second angle with the first partition 400, where the second angle is greater than 0° and less than or equal to 30°. In this arrangement, the second electrical control box 620 is tilted relative to the first partition 400. The second electrical control box 620 can tilt towards the fan cavity 103 or towards the first chamber 101. This arrangement increases the surface area of ​​the second electrical control box 620, facilitating heat dissipation. It should be noted that when multiple circuit boards are installed inside the second electrical control box 620, the positional relationship between each circuit board and the first partition 400 can be the same; for example, all circuit boards can be parallel to the first partition 400. Of course, the positional relationship between each circuit board and the first partition 400 can also be different; for example, at least one circuit board can be parallel to the first partition 400, and at least one circuit board can have a second angle with the first partition 400.

[0064] In order to achieve electrical connection with the device, both the first control box 610 and the second control box 620 are provided with wire outlet holes so that the wires can be led out.

[0065] Continue to refer to Figure 1 The bottom of the first electrical control box 610 is provided with a first cable outlet hole 611, so that both the front and rear ends of the first electrical control box 610 can be used to fix the first electrical control box 610, avoiding interference between the fixing structure and the first cable outlet hole 611. Optionally, multiple first cable outlet holes 611 can be provided, and the multiple first cable outlet holes 611 are arranged at intervals along the Y-axis direction, which can reduce mutual interference between cables.

[0066] The second electrical control box 620 has a second cable outlet 621 at its bottom; alternatively, the second electrical control box 620 has a second cable outlet 621 on its side near the first electrical control box 610; or alternatively, the second electrical control box 620 has a second cable outlet 621 on its side near the front panel of the HVAC equipment. This arrangement allows for flexible placement of the second cable outlet 621, facilitating the convenient routing of wiring from internal components.

[0067] In this embodiment of the application, the first electrical control box 610 and the second electrical control box 620 are electrically connected. A portion of the wires leading out from the first wire outlet 611 and a portion of the wires leading out from the second wire outlet 612 are connected in the first chamber 101, thereby realizing the electrical connection between the first electrical control box 610 and the second electrical control box 620.

[0068] Optionally, the portion of the wire leading from the first outlet hole 611 and the portion of the wire leading from the second outlet hole 612 may have a waterproof structure at the connection point to prevent moisture erosion from affecting the stability and safety of the electrical connection. For example, the portion of the wire leading from the first outlet hole 611 and the portion of the wire leading from the second outlet hole 612 may be connected via a waterproof terminal block, ensuring safety and reliability.

[0069] The following is combined Figure 2 and Figure 3 This describes the specific structure and function of the first partition 400 in the embodiments of this application. Figure 2 This is a schematic diagram of the water circuit components and base of the HVAC equipment provided in the embodiments of this application; Figure 3 yes Figure 2 An enlarged schematic diagram of region P in the middle. (See diagram below.) Figure 2 and Figure 3 As shown, the first partition 400 in this embodiment of the application includes a side panel body 410, a front cover plate portion 420, and a rear cover plate portion 430.

[0070] The front cover portion 420 and the rear cover portion 430 are disposed at opposite ends of the side plate body 410, as shown in the figure. Figure 2 The front cover plate 420 is disposed at the front end of the side plate body 410, and the rear cover plate 430 is disposed at the rear end of the side plate body 410. The side plate body 410 is arranged in the YZ plane and serves as a separator to separate the first chamber 101 and the second chamber 102. The front cover plate 420 and the rear cover plate 430 provide mounting structures for each component, and the side plate body 410, the front cover plate 420, and the rear cover plate 430 work together to form a receiving cavity for accommodating the water channel assembly 200.

[0071] Optionally, the front cover portion 420 and the side plate body 410 are two independent components, and the front cover portion 420 and the side plate body 410 are fixedly connected, for example, by screws. Alternatively, the front cover portion 420 and the side plate body 410 are integrally formed, for example, the front end of the side plate body 410 is formed into the front cover portion 420 by a bending process.

[0072] Optionally, the rear cover plate 430 and the side plate body 410 are two independent components, and the rear cover plate 430 and the side plate body 410 are fixedly connected, for example, by screws. Alternatively, the rear cover plate 430 and the side plate body 410 are integrally formed, for example, the rear end of the side plate body 410 is formed into the rear cover plate 430 by a bending process.

[0073] Based on the aforementioned structure of the first partition 400, the second electrical control box 620 is fixedly connected to the front cover plate 420 and / or the rear cover plate 430. Thus, the second electrical control box 620 can be fixedly connected to the front cover plate 420, or to the rear cover plate 430, or simultaneously to both the front cover plate 420 and the rear cover plate 430, providing flexible connection options. The second electrical control box 620 is opposite to and spaced from the side panel body 410 to accommodate at least a portion of the water system components 300, which helps improve the compactness of the HVAC equipment structure.

[0074] like Figure 2 As shown, the rear cover plate 430 includes a rear end plate 431 and a first fixed flange 432. The rear end of the side plate body 410 is bent and extended toward the second chamber 102 to form the rear end plate 431. The rear end plate 431 can be perpendicular to the side plate body 410.

[0075] The portion of the rear end plate 431 that is away from the side plate body 410 is bent and extended toward the front cover plate 420 to form a first fixed flange 432. The first fixed flange 432 is opposite to the side plate body 410. The first fixed flange 432 is fixedly connected to the second electrical control box 620, which serves to support and fix the second electrical control box 620.

[0076] In this embodiment of the application, the first fixed flange 432 is fixedly connected to the second electrical control box 620. The first fixed flange 432 is disposed above the rear end plate 431. The rear end plate 431 extends to the bottom end of the side plate body 410, and the bottom of the rear end plate 431 is provided with a through hole so that the inlet and outlet water pipes of the water circuit assembly 300 extend to the outside of the first partition 400. At this time, the rear end plate 431 plays the role of supporting the inlet and outlet water pipes.

[0077] In this embodiment, the second electrical control box 620 is fixed by setting a first fixed flange 432, and the second electrical control box 620 is spaced from the side plate body 410 by setting a rear end plate 431, which facilitates the arrangement of at least part of the structure of the water circuit component 300 and helps to improve the compactness of the HVAC equipment structure.

[0078] Combination Figure 2 and Figure 3 The front cover portion 420 of this application embodiment includes: a front end plate 421 and a side plate portion 422. The two sides of the front end plate 421 are respectively connected to the side plate portion 422 and the side plate body 410. The front end plate 421 is opposite to the rear cover portion 430, and the side plate portion 422 is opposite to the side plate body 410.

[0079] The front end plate 421 is perpendicular to the side plate body 410, and the front end plate 421 and the side plate body 410 are connected by screws. The front end of the side plate body 410 bends and extends toward the second chamber 102 to form a third fixed flange 411; the end of the front end plate 421 facing away from the rear cover plate portion 430 bends and extends to form a second connecting edge 425, which can be perpendicular to the front end plate 421; the end of the second connecting edge 425 facing away from the front end plate 421 bends and extends toward the side plate body 410 to form a fourth fixed flange 426, which is parallel to the third fixed flange 411, and the fourth fixed flange 426 and the third fixed flange 411 are connected by screws, and the connection method is stable and reliable. Thus, the second connecting edge 425 forms a forward-recessed recess at the fourth fixing flange 426 and the third fixing flange 411 to accommodate the fixing screws; it also helps to improve the structural strength and stability of the front cover plate 420.

[0080] Of course, in some possible implementations, the side plate body 410 and the front plate 421 can be integrally formed, for example, the front end of the side plate body 410 is formed into the front plate 421 by a bending process.

[0081] The front cover portion 420 of this application embodiment forms a receiving cavity by providing a front end plate 421 and a side plate portion 422, which, together with the side plate body 410 and the rear cover portion 430, is used to accommodate at least a portion of the water circuit components 300, thereby improving the compactness of the HVAC equipment structure.

[0082] Continue to refer to Figure 2 and Figure 3 The side plate portion 422 extends away from the front end plate 421 and bends towards the side plate body 410 to form a second connecting edge 425. The second connecting edge 425 may be perpendicular to the side plate portion 422 and is opposite to the front end plate 421. The end of the second connecting edge 425 that is away from the side plate portion 422 extends away from the front end plate 421 and bends to form a second fixed flange 424. The second fixed flange 424 may be perpendicular to the second connecting edge 425 and is fixedly connected to the second electrical control box 620. The connection method includes, but is not limited to, screw connection, snap-fit ​​connection, etc.

[0083] The embodiments of this application, by providing a second connecting edge 425 and a second fixed flange 424, help to improve the structural strength and stability of the front cover plate 420 and avoid deformation of the front cover plate 420 that would affect the second electrical control box 620.

[0084] The structure and function of the refrigerant circuit assembly 200 and the water circuit assembly 300 are described below with reference to the accompanying drawings. Figure 4 This is a front view of the water system component of the HVAC equipment provided in the embodiments of this application. Figure 5This is a schematic diagram of a portion of the structure of the HVAC equipment provided in the embodiments of this application.

[0085] Combination Figure 5 The refrigerant circuit assembly 200 in this application embodiment is used to transmit refrigerant, and may include a compressor 210, a four-way valve 220, a liquid receiver 230, and a throttling device 240.

[0086] Compressor 210 is used to compress low-temperature, low-pressure refrigerant gas into high-temperature, high-pressure refrigerant gas. It can be a fixed-frequency compressor or a variable-frequency compressor, etc. Compressor 210 has an exhaust port and a return port. The return port is used to draw in low-temperature, low-pressure refrigerant gas, and the exhaust port is used to discharge high-temperature, high-pressure refrigerant gas.

[0087] The receiver tank 230 is used to store sufficient refrigerant and dynamically adjust the refrigerant output according to actual needs. The receiver tank 230 can perform gas-liquid separation of the refrigerant, and the separated gaseous refrigerant flows back to the compressor 210 for compression.

[0088] The four-way valve 220 is used to change the refrigerant flow direction. The four-way valve 220 has four ports, which are respectively connected to the return port of the compressor 210, the discharge port of the compressor 210, the refrigerant inlet of the water-side heat exchanger 310, and the outlet of the outdoor heat exchanger 520. When the HVAC system is in heating mode, the high-temperature, high-pressure refrigerant output from the discharge port of the compressor 210 flows through the four-way valve 220 to the water-side heat exchanger of the water circuit assembly 300, while the low-temperature, low-pressure refrigerant gas discharged from the outlet of the outdoor heat exchanger 520 enters the return port of the compressor 210 through the four-way valve 220. When the HVAC system is in cooling mode, the refrigerant flow direction is opposite to that when producing hot water.

[0089] The throttling device 240 allows the medium-temperature, high-pressure refrigerant liquid to become a low-temperature, low-pressure gas-liquid mixture after passing through the throttling orifice, creating conditions for refrigerant evaporation; the throttling device is also used to control the flow rate of the refrigerant.

[0090] The refrigerant circuit assembly 200 in this embodiment of the application also includes a refrigerant pipe for connecting the above-mentioned components.

[0091] The heating principle of the HVAC equipment in this embodiment is as follows: A fan 510 drives air through an outdoor heat exchanger 520, causing low-temperature, low-pressure liquid refrigerant to exchange heat with the air in the outdoor heat exchanger 520. The liquid refrigerant absorbs heat and vaporizes into low-pressure steam. The refrigerant gas enters the compressor 210 via a four-way valve 220 and a refrigerant pipeline. Inside the compressor 210, the refrigerant gas is compressed into a high-temperature, high-pressure gas. This high-temperature, high-pressure gas enters the water-side heat exchanger of the water circuit assembly 300 via the four-way valve 220 and the refrigerant transmission pipeline, where it exchanges heat with water, causing the refrigerant to cool and condense into a high-pressure liquid. The high-pressure liquid refrigerant is then throttled by a throttling device 240 into a low-temperature, low-pressure liquid refrigerant, which re-enters the outdoor heat exchanger 520. This cycle repeats continuously, thus heating the water.

[0092] Combination Figure 2 and Figure 4 The water circuit assembly 300 in this embodiment includes the aforementioned water-side heat exchanger 310 and water pump 320. The water-side heat exchanger 310 forms a refrigerant channel and a water flow channel. The refrigerant channel is connected to the refrigerant flow path of the refrigerant circuit assembly 200, and the water flow channel is connected to the water flow channel. Heat exchange occurs between the refrigerant in the refrigerant channel and the refrigerant in the water flow channel, achieving the purpose of heat exchange. The water-side heat exchanger 310 in this embodiment can be a plate-type water-side heat exchanger, a shell-and-tube type water-side heat exchanger, etc. The water pump 320 provides the power for the water to flow in the water circuit assembly 300. The water pump 320 can be an oil-filled submersible pump, etc. This embodiment does not limit the type of water pump 320, as long as it can provide power for water flow.

[0093] The water circuit assembly 300 in this embodiment of the application further includes an inlet pipe 301, an outlet pipe 302, a delivery pipe 303, and a drain pipe 304. The inlet pipe 301 is connected to the water-side heat exchanger 310 and the water pump 320. The delivery pipe 303 is connected to the water pump 320 to introduce cold water into the water-side heat exchanger 310. The outlet pipe 302 is used to discharge the water in the water-side heat exchanger 310.

[0094] In some embodiments, the water circuit assembly 300 is provided with an electric heater 330, the outlet pipe 302 connects the water-side heat exchanger 310 and the electric heater 330, and the drain pipe 304 connects to the electric heater 330. Thus, the water supply pipe 303, the water pump 320, the inlet pipe 301, the water flow channel of the water-side heat exchanger 310, the outlet pipe 302, the electric heater 330 and the drain pipe 304 form a water flow path.

[0095] The electric heater 330 is used to reheat the water after heat exchange in the water-side heat exchanger 310 to increase the temperature of the discharged water. Of course, the operation of the electric heater 330 is optional. When the water temperature after heat exchange meets the set requirements, the electric heater 330 is turned off; when the water temperature after heat exchange is lower than the set requirements, the electric heater 330 is turned on to provide auxiliary heating to the water so that the water discharged from the water circuit assembly 300 meets the set water temperature requirements.

[0096] Optionally, a water flow channel is formed within the electric heater 330 to allow water to flow through; an electric heating element, such as an electric heating wire, is provided on the outside of the water flow channel to heat the water flow. The specific structure of the electric heater 330 is not limited in this application embodiment, as long as it can achieve the reheating of the water flow.

[0097] The water supply pipe 303 is equipped with a safety valve 340. Under normal working conditions, the safety valve 340 is normally closed. When the water pressure in the water circuit component 300 exceeds the set value, the safety valve 340 opens to drain water to avoid excessive pressure in the pipe and causing a safety accident.

[0098] A flow switch 350 is installed on the drain pipe 304. The flow switch 350 is used to detect the water flow of the water circuit component 300. When the water flow is lower than the preset value, an alarm signal is triggered to the control device of the HVAC equipment so that the control device can make corresponding indication actions to prevent the electric heater 330 from burning dry.

[0099] During the heating process of the electric heater 330 and the heat exchange process of the water-side heat exchanger 310, water inevitably vaporizes to produce water vapor. An exhaust valve 360 ​​is provided at the top of the electric heater 330. When the water vapor pressure at the top of the electric heater 330 exceeds a preset pressure value, the exhaust valve 360 ​​opens to release the vapor. In this embodiment, the top of the electric heater 330 is located at a high position in the water circuit assembly 300, where water vapor accumulates. Providing an exhaust valve 360 ​​at the top of the electric heater 330 helps improve the safety of the HVAC equipment.

[0100] In some other embodiments, the water circuit assembly 300 does not have an electric heater 300, in which case the water outlet pipe 302 is directly connected to the drain pipe 304.

[0101] In this embodiment, the water pump 320 is located at the back of the water-side heat exchanger 310, and the electric heater 330 is located at the top of the water-side heat exchanger 310. This arrangement allows water to flow from back to front to the water-side heat exchanger 310, and then upward to the electric heater 330, which improves the smoothness of the water flow path and makes the water circuit assembly 300 structurally compact. At least a portion of the electric heater 330, the drain pipe 304, and at least a portion of the outlet pipe 302 are located in the space between the second electrical control box 620 and the first partition 400, which further improves the structural compactness of the HVAC equipment.

[0102] There are several ways to fix the water-side heat exchanger 310. The water-side heat exchanger 310 can be fixed to the first partition plate 400, and / or, the water-side heat exchanger 310 can be fixed to the base 110 of the HVAC equipment. The fixing methods include, but are not limited to, screw connection, snap-fit, etc.

[0103] The water pump 320 can be fixed to the first partition 400, or the water pump 320 can be fixed to the base 110 of the HVAC equipment. The fixing methods include, but are not limited to, screw connection, snap-fit, etc.

[0104] The electric heater 330 can be fixed to the first partition 400. For example, the electric heater 330 is fixed to the first partition 400 by screws.

[0105] In this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0106] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0107] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0108] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, include: A housing, wherein a first chamber and a second chamber are formed within the housing; A water channel assembly is installed in the second chamber, the water channel assembly being used to form a water flow path; A refrigerant circuit assembly is installed in the first chamber, the refrigerant circuit assembly is used to form a refrigerant flow path, and the refrigerant circuit assembly is configured to exchange heat with the water circuit assembly; The first electrical control box is at least partially located in the first chamber; The second electrical control box is located in the second chamber; A fan chamber is also formed inside the casing, and the fan chamber, the first chamber, and the second chamber are arranged side by side. The first electrical control box is electrically connected to at least some of the components in the fan cavity and the first chamber, and the second electrical control box is electrically connected to at least some of the components in the second chamber and the first chamber; The first electrical control box is equipped with a heating element, which faces the fan cavity.

2. The HVAC equipment according to claim 1, characterized in that, The first chamber is located between the fan chamber and the second chamber.

3. The HVAC equipment according to claim 2, characterized in that, The HVAC equipment further includes a first partition and a second partition, both of which are installed inside the housing; a first chamber is formed between the first partition and the second partition, and the second chamber is located on the side of the first partition away from the second partition; the fan chamber is located on the side of the second partition away from the first partition.

4. The HVAC equipment according to claim 3, characterized in that, The first electrical control box is fixed to the second partition; the second electrical control box is fixed to the first partition.

5. The HVAC equipment according to claim 3, characterized in that, The circuit board surface or the box body surface of the first electrical control box is parallel to the second partition; or, the circuit board surface or the box body surface of the first electrical control box forms a first angle with the second partition, the first angle being greater than 0° and less than or equal to 30°.

6. The HVAC equipment according to claim 3, characterized in that, The circuit board surface or the box body surface of the second electrical control box is parallel to the first partition; or, the circuit board surface or the box body surface of the second electrical control box forms a second angle with the first partition, the second angle being greater than 0° and less than or equal to 30°.

7. The HVAC equipment according to claim 3, characterized in that, The first partition and the second partition are parallel.

8. The HVAC equipment according to claim 3, characterized in that, The bottom of the first electrical control box is provided with a first cable outlet hole; A second cable outlet is provided at the bottom of the second electrical control box, or on the side of the second electrical control box near the first electrical control box, or on the side of the second electrical control box near the front panel of the HVAC equipment.

9. The HVAC equipment according to claim 8, characterized in that, The portion of the wire leading out from the first outlet hole and the portion of the wire leading out from the second outlet hole are connected in the first cavity.

10. The HVAC equipment according to any one of claims 3-9, characterized in that, The first partition includes a side panel body, a front cover panel, and a rear cover panel; The side plate body is used to separate the first chamber and the second chamber; The second electrical control box is fixedly connected to the front cover and / or the rear cover, and the second electrical control box is opposite to and spaced from the side panel body to accommodate at least part of the water circuit assembly.

11. The HVAC equipment according to claim 10, characterized in that, The rear cover plate includes a rear end plate and a first fixed flange, wherein the rear end of the side plate body is bent and extended toward the second cavity to form the rear end plate; The portion of the rear end plate away from the side plate body bends and extends toward the front cover plate to form the first fixed flange, which is opposite to the side plate body; the first fixed flange is fixedly connected to the second electrical control box.

12. The HVAC equipment according to claim 10, characterized in that, The front cover portion includes a front end plate and a side plate portion. The two sides of the front end plate are respectively connected to the side plate portion and the side plate body. The front end plate is opposite to the rear cover portion, and the side plate portion is opposite to the side plate body.

13. The HVAC equipment according to claim 12, characterized in that, The side plate portion is bent and extended toward the side plate body at one end away from the front end plate to form a second connecting edge; the second connecting edge is opposite to the front end plate; the second connecting edge is bent and extended away from the front end plate at one end away from the side plate portion to form a second fixed flange, and the second fixed flange is fixedly connected to the second electrical control box.

14. The HVAC equipment according to any one of claims 2-9, characterized in that, A portion of the first electrical control box is located inside the fan cavity, and a portion of the first electrical control box is located within the first cavity.

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