Air handling unit, air conditioner and operation machine

Abstract

The utility model belongs to the technical field of air conditioners, and particularly discloses an air conditioning box, an air conditioner and an operation machine. Specifically, according to the air conditioning cabinet, the structure is innovated, an adjusting air door is additionally arranged in the air conditioning cabinet, the adjusting air door abuts against the PTC heating assembly, and the opening and closing and the size of the adjusting air door can be adjusted according to needs. When the air conditioner needs to heat, the adjusting air door is closed so that all air can circulate in the PTC heating assembly to be heated, and when the air conditioner does not need to heat, the adjusting air door is opened so that the air can enter the air blower from the adjusting air door to reach the air supply outlet without being affected by resistance of the PTC heating assembly. The circulation resistance of air in the air conditioning box can be effectively reduced, and the air supply experience of the air conditioner is improved.

Description

Technical Field

[0001] This application belongs to the field of air conditioning technology, and in particular to an air conditioning box, an air conditioner and an operating machine. Background Art

[0002] In order to achieve temperature regulation, existing air-conditioning boxes are usually equipped with an evaporative core and a PTC (positive temperature coefficient thermistor). The evaporative core is used for cooling and the PTC is used for heating, and the two are arranged separately inside the air-conditioning box. After the air enters the air-conditioning box, whether it is cooling or heating, it needs to pass through the evaporative core and the PTC before it can reach the air supply outlet and flow into the room. For example, when the air conditioner is cooling, the cold air after heat exchange through the evaporative core needs to pass through the PTC before it reaches the air supply outlet. There is no doubt that the PTC increases the air supply resistance for the further circulation of cold air inside the air-conditioning box, thereby reducing the air supply experience of the air conditioner.

[0003] In view of this, the present application provides a new type of air conditioning box, air conditioner and operating machinery to solve the problem of large air supply resistance of the air conditioning box in the prior art. Utility Model Content

[0004] In order to solve the problem of high air supply resistance of air conditioning boxes in the prior art, the present application provides a new air conditioning box, air conditioner and operating machine. According to the first aspect provided by the present application, the air conditioning box provided by the present application includes:

[0005] A housing, a blower, an evaporation core, and a PTC heating component, wherein the blower, the evaporation core, and the PTC heating component are all disposed inside the housing, the housing is provided with an air return port and an air supply port, the housing further comprising a first sealing plate and a second sealing plate, the first sealing plate being provided with a throat for air circulation within the housing, and the evaporation core being fixed between the first sealing plate and the second sealing plate;

[0006] An adjusting damper, one end of which is connected to the first sealing plate, and the other end abuts against the PTC heating component, and the other end of the PTC heating component is fixed to the second sealing plate, and the damper size of the adjusting damper is adjustable.

[0007] In one embodiment, the PTC heating component is provided with a support plate, and the regulating damper abuts against the support plate.

[0008] In one embodiment, the support plate is disposed on a side close to the evaporation core, and the damper can be rotated in a direction away from the evaporation core to adjust the size of the damper.

[0009] In one embodiment, the damper includes a rotating shaft and a support, the support is fixed to the first sealing plate, and the rotating shaft is rotatably connected to the support.

[0010] In one embodiment, the regulating damper is electrically connected to both the air-conditioning motor and the air-conditioning controller, and the air-conditioning controller can control the air-conditioning motor to adjust the damper size of the regulating damper.

[0011] In one embodiment, the shell is further provided with a fresh air inlet and a fresh air filter. The fresh air inlet is used for fresh air to enter the interior of the air-conditioning box, and the fresh air filter is used for filtering the fresh air.

[0012] In one embodiment, a return air filter is further provided in the housing, and the return air filter is used to filter return air and fresh air.

[0013] In one embodiment, the evaporation core is provided with a waste heat recovery heat exchange interface, and the waste heat recovery heat exchange interface is used to connect the evaporation core with the waste heat recovery circulation loop of the entire vehicle.

[0014] According to the second aspect of the present application, the present application also provides an air conditioner, which includes any of the above-mentioned air-conditioning boxes, and also includes an air-conditioning motor and an air-conditioning controller, and the air-conditioning controller is used to control the air-conditioning motor to operate the air conditioner.

[0015] According to a third aspect of the present application, the present application also provides a working machine, which includes the above-mentioned air conditioner.

[0016] The air conditioning box provided in this application features a structural innovation, with an additional damper installed inside the box. The damper abuts the PTC heating element, and the damper can be adjusted to open and close, and to adjust the damper size as needed. When the air conditioner needs to heat, the damper is closed, allowing air to flow entirely through the PTC heating element to achieve a warming effect. When the air conditioner does not need to heat, the damper is opened, allowing air to pass through the damper, into the blower, and reach the air outlet without being affected by the resistance of the PTC heating element. This arrangement effectively reduces the resistance to air circulation within the box, at least when the air conditioner does not need to heat, thereby improving the air supply experience.

[0017] The air conditioner and operating machinery provided in this application include the above-mentioned air conditioning box, and therefore also have the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the implementation regulations or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without any creative work.

[0019] Figure 1 Schematic diagram of the overall structure of the air conditioning box;

[0020] Figure 2 It is a cross-sectional view of the internal structure of the air conditioning box;

[0021] Figure 3 Schematic diagram of the damper structure.

[0022] Description of Figure Numbers:

[0023] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

[0024] 1-shell, 11-return air inlet, 12-supply air outlet, 13-fresh air inlet, 14-fresh air filter, 15-first cover plate, 151-throat, 16-second cover plate, 2-blower, 3-evaporator core, 4-PTC heating component, 41-support plate, 5-return air filter, 6-adjusting damper, 61-support, 62-rotating shaft, 7-air flow path. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the implementation regulations described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0026] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "plurality" means at least two groups, such as two groups, three groups, etc., unless otherwise specifically defined.

[0028] In this application, unless otherwise specified or limited, the terms "connection" and "fixed" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two groups of components or interaction between two groups of components, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0029] In addition, the technical solutions between the various embodiments of the present application can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0030] In the prior art, in order to meet the heating and cooling needs of air conditioners, a PTC heating component and an evaporative core are usually provided in the air conditioner box. The PTC heating component is used for heating, and the evaporative core is used for cooling. Furthermore, in order to improve the cooling or heating effect, the PTC heating component and the evaporative core are arranged on the air circulation path, and the PTC heating component and the evaporative core are fixedly connected to the inner wall of the air conditioner box, so that the air inside the air conditioner box must flow through the PTC heating component and the evaporative core to reach the air supply port. In other words, regardless of whether the air conditioner is cooling or heating, the air must flow through the PTC heating component and the evaporative core. For example, when the air conditioner is cooling, the cold air after heat exchange through the evaporative core must also pass through the PTC heating component to reach the air supply port. Undoubtedly, the PTC heating component increases the air supply resistance for the further circulation of cold air inside the air conditioner box, reducing the air supply experience of the air conditioner.

[0031] In order to solve the above technical problems, this application provides an improved air conditioning box, please refer to Figure 1 and Figure 2 The present application provides an air-conditioning box, comprising: a shell, a blower, an evaporative core and a PTC heating component, wherein the blower, the evaporative core and the PTC heating component are all arranged inside the shell, and the shell is provided with a return air port and an air supply port; the shell also includes a first closing plate and a second closing plate, the first closing plate is provided with a throat, and the throat is used for air circulation in the shell, and the evaporative core is fixed between the first closing plate and the second closing plate; an adjusting damper, one end of the adjusting damper is connected to the first closing plate, and the other end abuts against the PTC heating component, and the other end of the PTC heating component is fixed to the second closing plate, and the damper size of the adjusting damper is adjustable.

[0032] It is understood that the shell refers to the box body of the air-conditioning box, and the PTC heating component, blower, and evaporation core are all arranged inside the box body. During normal operation, air enters the box body from the return air inlet and flows into the chamber where the PTC heating component and evaporation core are located from the throat of the first sealing plate. The PTC heating component or evaporation core is activated on demand according to the cooling or heating needs to heat or cool the air. The heated or cooled air flows through the blower to the air supply port and is delivered to the room. The first sealing plate and the second sealing plate are mainly used for the installation of the evaporation core and the PTC heating component. The two ends of the evaporation core are fixed to the first sealing plate and the second sealing plate respectively. One end of the PTC heating component is fixed to the second sealing plate, and the other end is in contact with one end of the regulating damper. The other end of the regulating damper is fixed to the first sealing plate. With this arrangement, after the air enters the chamber where the PTC heating component and the evaporation core are located from the throat, since the other sealing plates of the shell are all sealed, the air can only circulate through the PTC heating component and the evaporation core. The air circulating in the shell can fully contact and exchange heat with the PTC heating component and the evaporation core to realize the temperature regulation function of the air conditioner.

[0033] The air-conditioning box provided in the present application is provided with an adjusting damper, one end of which is fixed on the first sealing plate, and the other end is in contact with one end of the PTC heating component. When the air-conditioning does not need to heat, that is, when the PTC heating component does not need to be started, the adjusting damper can be opened so that the air can flow directly from the adjusting damper without being affected by the resistance of the PTC heating component, thereby improving the air supply experience of the air-conditioning.

[0034] In one embodiment, the PTC heating component is provided with a support plate, and the regulating damper is in contact with the support plate. Figure 3 .

[0035] The support plate mainly plays a supporting role, and the damper is in contact with the support plate, that is, there is no fixed connection between the damper and the support plate. The damper can be opened in a specific way to adjust the size of the damper. Specifically, there are many ways to open the damper, such as telescopic and rotary. Considering the technical complexity and cost, it is preferred to use a rotary damper. The exemplary structure of the damper can be referred to Figure 3The present application provides an adjustment damper including a support and a rotating shaft. The support is fixed to the first cover plate, and the rotating shaft and the support are rotatably connected, that is, the rotating shaft can rotate in a certain direction based on the support. One end of the rotating shaft is connected to the support, and the other end abuts the support plate. When the damper needs to be opened, the rotating shaft can rotate in the direction away from the support plate. It should be noted that the rotation direction of the rotating shaft is affected by the layout of the support plate, the evaporation core and the PTC heating component inside the air-conditioning box. The rotating shaft abuts the support plate, so the rotating shaft can only rotate in the direction away from the support plate. In addition, in order to allow the rotating shaft to rotate normally, that is, to ensure that the rotation of the rotating shaft is not interfered with by the evaporation core, preferably, the support plate is arranged on the side close to the evaporation core. In this way, the support plate and the evaporation core are both on the side opposite to the rotation direction of the rotating shaft, so the rotating shaft can be rotated without being interfered with by the support plate and the evaporation core.

[0036] In one embodiment, the damper is electrically connected to both the air conditioning motor and the air conditioning controller. The air conditioning controller controls the air conditioning motor to adjust the damper's opening. This arrangement not only enables automatic control of the damper, but also controls the airflow speed of the air conditioner. The airflow rate can be adjusted by adjusting the damper's opening.

[0037] In one embodiment, the shell is further provided with a fresh air inlet and a fresh air filter. The fresh air inlet is used for fresh air to enter the interior of the air-conditioning box, and the fresh air filter is used for filtering the fresh air.

[0038] In one embodiment, a return air filter is further provided in the housing, and the return air filter is used to filter return air and fresh air.

[0039] It should be noted that both the return air filter and the fresh air filter have the function of purifying and filtering the air. The fresh air filter performs the first purification on the fresh air from outside, mainly used to filter out some large particles of impurities. The return air filter performs the second purification on the return air and fresh air, mainly used for disinfection and deodorization.

[0040] In one embodiment, the evaporator core is provided with a waste heat recovery heat exchange interface, which is used to connect the evaporator core to the vehicle's waste heat recovery circuit. During normal operation, refrigerant circulates within the evaporator core, cooling the air with the refrigerant to achieve a cooling effect. In this embodiment, the evaporator core is provided with a waste heat recovery heat exchange interface. This configuration allows the vehicle's waste heat recovery circuit to be connected to the evaporator core when the vehicle has waste heat to be utilized. Once connected, the evaporator core can directly use the vehicle's waste heat to heat the air within the air conditioning unit, achieving energy savings.

[0041] In another aspect, the present application also provides an air conditioner, comprising the aforementioned air conditioning box, further comprising an air conditioning motor and an air conditioning controller, wherein the air conditioning controller is configured to control the air conditioning motor to operate the air conditioner. Because the air conditioner provided by the present application includes the aforementioned air conditioning box, the air conditioner provided by the present application also possesses the various advantages of the aforementioned air conditioning box.

[0042] In addition, the present application also provides an operating machine, which includes the above-mentioned air conditioner. Therefore, the operating machine provided by the present application also includes the various advantages of the above-mentioned air conditioner and air-conditioning box.

[0043] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. All equivalent structural transformations made based on the contents of the present application specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. An air conditioning box, comprising a housing, a blower, an evaporation core, and a PTC heating element, wherein the blower, the evaporation core, and the PTC heating element are all disposed inside the housing, and the housing is provided with a return air inlet and an air supply inlet, characterized in that: The housing further includes a first sealing plate and a second sealing plate, the first sealing plate being provided with a throat for air to circulate within the housing, and the evaporation core being fixed between the first sealing plate and the second sealing plate; An adjusting damper, one end of which is connected to the first sealing plate, and the other end abuts against the PTC heating component, and the other end of the PTC heating component is fixed to the second sealing plate, and the damper size of the adjusting damper is adjustable.

2. The air conditioning box according to claim 1, characterized in that: The PTC heating component is provided with a support plate, and the regulating damper abuts against the support plate.

3. The air conditioning box according to claim 2, characterized in that: The support plate is arranged on a side close to the evaporation core, and the regulating damper can be rotated in a direction away from the evaporation core to adjust the size of the damper.

4. The air conditioning box according to any one of claims 1 to 3, characterized in that: The regulating damper includes a rotating shaft and a support, the support is fixed to the first sealing plate, and the rotating shaft is rotatably connected to the support.

5. The air conditioning box according to claim 4, characterized in that: The regulating damper is electrically connected to the air-conditioning motor and the air-conditioning controller. The air-conditioning controller can control the air-conditioning motor to adjust the damper size of the regulating damper.

6. The air conditioning box according to claim 5, characterized in that: The shell is also provided with a fresh air inlet and a fresh air filter. The fresh air inlet is used for fresh air to enter the interior of the air-conditioning box, and the fresh air filter is used for filtering the fresh air.

7. The air conditioning box according to claim 6, characterized in that: A return air filter is also provided in the shell, and the return air filter is used to filter return air and fresh air.

8. The air conditioning box according to claim 7, characterized in that: The evaporation core is provided with a waste heat recovery heat exchange interface, and the waste heat recovery heat exchange interface is used to connect the evaporation core and the waste heat recovery circulation loop of the entire vehicle.

9. An air conditioner, characterized in that: The air conditioner comprises the air conditioning box according to any one of claims 1 to 8, and the air conditioner further comprises an air conditioning motor and an air conditioning controller, wherein the air conditioning controller is used to control the air conditioning motor to operate the air conditioner.

10. A working machine, characterized in that: The working machine includes the air conditioner according to claim 9.

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