Evaporator assembly, air conditioning system and heavy truck

Abstract

The utility model provides an evaporator assembly, an air conditioning system and a heavy truck, and relates to the technical field of vehicles. The evaporator assembly comprises an outer shell, an evaporator core body, an internal and external circulation air door plate and an air conditioner filter element. The air conditioner filter element is located between the evaporator core body and the internal and external circulation air door plate. Under the condition that the air conditioning system is in internal circulation, the internal and external circulation air door plate covers the ventilation holes, and an internal circulation air passage is formed between the air conditioning filter element and the internal and external circulation air door plate; under the condition that the air conditioning system is in external circulation, the edge of the upper end of the internal and external circulation air door plate is attached to the edge of the lower end of the air conditioner filter element, and an external circulation air channel is formed between the ventilation hole and the air conditioner filter element. According to the evaporator assembly, the air conditioner filter element is arranged between the evaporator core body and the internal and external circulation air door plate, and the internal and external circulation air channel is formed, so that the air conditioner filter element can filter internal circulation air and external circulation air, and the comfort degree of the driving environment is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to an evaporator assembly, an air conditioning system and a heavy truck. BACKGROUND

[0002] At present, the air conditioning system has become a standard configuration of the heavy truck, and the evaporator assembly is a key component in the air conditioning system of the heavy truck. The main function of the evaporator assembly is to reduce the temperature in the cab through the circulation of refrigerant, thereby providing a comfortable driving environment.

[0003] The existing air conditioning system of the heavy truck can provide poor comfort. The air conditioning filter element can only filter the outdoor air. However, the air in the cab of the heavy truck also needs to be filtered due to long-time driving. CONTENT OF THE INVENTION

[0004] The embodiments of the present application provide an evaporator assembly, an air conditioning system and a heavy truck to solve the problem of poor comfort of the existing air conditioning system of the heavy truck.

[0005] The first aspect of the embodiments of the present application provides an evaporator assembly, comprising: an outer shell, an evaporator core, an internal-external circulation air door plate and an air conditioning filter element;

[0006] The evaporator core, the air conditioning filter element and the internal-external circulation air door plate are arranged inside the outer shell. The outer shell is provided with a ventilation hole for introducing outdoor air.

[0007] The air conditioning filter element is arranged parallel to the evaporator core and located between the evaporator core and the internal-external circulation air door plate. An internal-external circulation air passage is formed between the air conditioning filter element and the evaporator core.

[0008] In the case of internal circulation of the air conditioning system, the internal-external circulation air door plate covers the ventilation hole, and an internal circulation air passage is formed between the air conditioning filter element and the internal-external circulation air door plate. In the case of external circulation of the air conditioning system, the edge of the upper end of the internal-external circulation air door plate is attached to the edge of the lower end of the air conditioning filter element, and an external circulation air passage is formed between the ventilation hole and the air conditioning filter element.

[0009] In a possible implementation manner, the evaporator assembly provided by the embodiments of the present application comprises: an upper shell, a lower shell and an outer cover. The upper shell and the lower shell are connected to the outer cover through buckling.

[0010] The lower shell is provided with a ventilation hole.

[0011] In a possible implementation, the evaporator assembly provided by the embodiment of the present application is characterized in that the upper end edge of the air conditioner filter element is attached to the first part of the outer shell body, and the upper end edge of the evaporator core is attached to the second part of the outer shell body.

[0012] The bottom of the air conditioner filter element and the evaporator core is placed on the placement plate, and the air conditioner filter element, the first part, the second part, the evaporator core and the placement plate enclose a first space, which is a closed space except for the internal-external circulation air passage.

[0013] In a possible implementation, the evaporator assembly provided by the embodiment of the present application further includes an air conditioner filter element limiting plate.

[0014] The air conditioner filter element limiting plate is located on the placement plate, and the bottom of the air conditioner filter element is located in the air conditioner filter element limiting plate.

[0015] In a possible implementation, the evaporator assembly provided by the embodiment of the present application is characterized in that the outer shell body further includes an air conditioner filter element replacement part, and the air conditioner filter element replacement part is located on the upper shell body and detachably connected to the upper shell body.

[0016] In a possible implementation, the evaporator assembly provided by the embodiment of the present application is characterized in that the evaporator core is a double-layer parallel flow structure.

[0017] In a possible implementation, the evaporator assembly provided by the embodiment of the present application further includes an internal-external circulation actuator, and the internal-external circulation actuator is connected to the internal-external circulation air door plate through a connecting shaft.

[0018] In a possible implementation, the evaporator assembly provided by the embodiment of the present application is characterized in that a handle is arranged on the side surface of the evaporator core.

[0019] The second aspect of the embodiment of the present application provides an air conditioning system, which includes the evaporator assembly according to any one of the first aspect.

[0020] The third aspect of the embodiment of the present application provides a heavy truck, which includes the air conditioning system according to the second aspect.

[0021] The application provides an evaporator assembly, an air conditioning system and a heavy truck. The evaporator assembly comprises an outer shell, an evaporator core, an inner-outer circulation air door plate and an air conditioner filter element. The evaporator core, the air conditioner filter element and the inner-outer circulation air door plate are arranged in the outer shell. The outer shell is provided with a ventilation hole for introducing outdoor air. The air conditioner filter element is arranged parallel to the evaporator core and between the evaporator core and the inner-outer circulation air door plate. An inner-outer circulation air passage is formed between the air conditioner filter element and the evaporator core. In the inner circulation mode of the air conditioning system, the inner-outer circulation air door plate covers the ventilation hole, and an inner circulation air passage is formed between the air conditioner filter element and the inner-outer circulation air door plate. In the outer circulation mode of the air conditioning system, the edge of the upper end of the inner-outer circulation air door plate is attached to the edge of the lower end of the air conditioner filter element, and an outer circulation air passage is formed between the ventilation hole and the air conditioner filter element. The evaporator core, the air conditioner filter element and the inner-outer circulation air door plate are integrated in the outer shell, so that the structure of the evaporator assembly is more compact, the occupied space is reduced, and the air conditioning system can be disassembled as a whole, thereby improving the convenience of maintenance or replacement of components. The air conditioner filter element is arranged between the evaporator core and the inner-outer circulation air door plate, so that an inner-outer air circulation passage is formed to ensure that the inner-outer circulation air passes through the air conditioner filter element for filtration, thereby effectively removing harmful substances such as dust, pollen and odors in the air and improving the air quality in the vehicle. The inner-outer circulation air door plate can be adjusted to flexibly switch the inner-outer circulation mode of the air conditioning system. In the inner circulation mode, the inner-outer circulation air door plate covers the ventilation hole to form a closed inner circulation air passage, which effectively prevents outdoor polluted air from entering the vehicle and allows the inner circulation air to pass through the air conditioner filter element for filtration. In the outer circulation mode, the edge of the inner-outer circulation air door plate is attached to the edge of the air conditioner filter element to allow outdoor fresh air to enter the vehicle through the ventilation hole, thereby effectively updating the air and ensuring that the outer circulation air passes through the air conditioner filter element for filtration before entering the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and serve to explain the principles of the application.

[0023] Figure 1 An external structure schematic diagram of the evaporator assembly provided by the application is shown in the figure.

[0024] Figure 2 A cross-sectional structure schematic diagram of the evaporator assembly in the inner circulation mode provided by the application is shown in the figure.

[0025] Figure 3 A cross-sectional structure schematic diagram of the evaporator assembly in the outer circulation mode provided by the application is shown in the figure.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] 1-outer shell; 11-upper shell; 12-lower shell; 13-outer cover; 14-vent hole; 15-first part; 16-second part;

[0028] 2-evaporator core; 3-interior-exterior circulation damper plate; 4-air conditioner filter core; 5-air conditioner filter core limiting plate;

[0029] 6-interior-exterior circulation actuator; 7-expansion valve.

[0030] The specific embodiments of the present application have been shown and described in the above drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application in any way, but to explain the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely in the following with reference to the drawings in the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. In the present application, the terms “upper”, “lower”, “interior”, “middle”, “exterior”, “front”, “rear” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to indicating the orientation or positional relationship, the above-mentioned terms can also be used to indicate other meanings, for example, the term “upper” can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0032] In addition, the terms “set”, “connected”, “fixed” should be understood broadly. For example, “connected” can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above-mentioned terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0033] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein, for example, can be implemented in an order other than those illustrated or described herein. In the embodiments of the present application, the words "exemplarily" or "for example" are used to represent an example, illustration or description. Any embodiment or design scheme described as "exemplarily" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the use of the words "exemplarily" or "for example" is intended to present the relevant concept in a specific manner.

[0034] Unless otherwise specified, the term "a plurality of" means two or more.

[0035] In order to clearly understand the technical solutions of the present application, the prior art solutions are first introduced in detail.

[0036] At present, the air conditioning system has become a standard configuration of heavy trucks, and the evaporator assembly is a key component in the air conditioning system of heavy trucks, which mainly functions to reduce the temperature in the cab through the circulation of refrigerant to provide a comfortable driving environment. Under normal circumstances, the air conditioner filter element and the evaporator assembly are independent components in the air conditioning system, and the position and installation method of the air conditioner filter element often limit its purification efficiency, especially when the internal and external circulation modes are switched, the air conditioner filter element cannot effectively filter the air in the external circulation, resulting in a decrease in the air quality in the vehicle.

[0037] In view of the above problems, the present application provides an evaporator assembly, which comprises an outer shell 1, an evaporator core 2, an internal and external circulation air door plate 3 and an air conditioner filter element 4. In order to ensure that the air must pass through the air conditioner filter element 4 for filtration in the internal and external circulation modes, the air conditioner filter element 4 is arranged parallel to the evaporator core 2 and located between the evaporator core 2 and the internal and external circulation air door plate 3, forming an internal and external circulation air passage between the air conditioner filter element 4 and the evaporator core 2, thereby improving the air purification effect; in order to make the internal and external circulation air pass through the filtration of the air conditioner filter element 4, the internal and external circulation air door plate 3 is covered on the air vent hole 14 during internal circulation, at this time the internal and external circulation air passage is formed between the air conditioner filter element 4 and the internal and external circulation air door plate 3, and the internal circulation air can be filtered through the air conditioner filter element 4; during external circulation, the edge between the upper end of the internal and external circulation air door plate 3 and the lower end of the air conditioner filter element 4 is fitted, at this time the external circulation air passage is formed between the air vent hole 14 and the air conditioner filter element 4, and the air in external circulation can also be filtered through the air conditioner filter element 4, which not only optimizes the switching of the internal and external circulation modes, but also quickly and accurately adjusts the air circulation passage during the switching of the internal and external circulation modes, so that the air conditioner filter element 4 filters the air in the internal and external circulation, thereby improving the air quality in the vehicle.

[0038] The technical solutions of the embodiments of the present application and how the technical solutions of the embodiments of the present application solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described again in some examples. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0039] As shown in Figures 1 to 3 , the embodiments of the present application provide an evaporator assembly, specifically comprising an outer shell 1, an evaporator core 2, an internal and external circulation air door plate 3 and an air conditioner filter element 4. Among them, the evaporator core 2, the air conditioner filter element 4 and the internal and external circulation air door plate 3 are arranged inside the outer shell 1, and the outer shell 1 is provided with a ventilation hole 14 for introducing outdoor air; the air conditioner filter element 4 is arranged parallel to the evaporator core 2 and located between the evaporator core 2 and the internal and external circulation air door plate 3; an internal and external circulation air passage is formed between the air conditioner filter element 4 and the evaporator core 2; in the case of internal circulation of the air conditioning system, the internal and external circulation air door plate 3 covers the ventilation hole 14, and an internal circulation air passage is formed between the air conditioner filter element 4 and the internal and external circulation air door plate 3; in the case of external circulation of the air conditioning system, the edge between the upper end of the internal and external circulation air door plate 3 and the lower end of the air conditioner filter element 4 is fitted, and an external circulation air passage is formed between the ventilation hole 14 and the air conditioner filter element 4.

[0040] Among them, the outer shell 1 is used to integrate the evaporator core 2, the air conditioner filter element 4 and other components in a separate space and form a sealed space, so that the air can circulate according to the preset passage. Further, the outer shell 1 can be made of high-strength and corrosion-resistant materials, such as metal or engineering plastic, etc., which is not limited in the present embodiment.

[0041] Optionally, the outer shell 1 can include a plurality of detachable parts, and the outer shell is formed by fixed connection between the parts, and when replacing any one of the evaporator core 2 in the outer shell, the replacement can be performed by disassembling the outer shell.

[0042] As can be understood from Figures 1 to 2 , the evaporator assembly further comprises an expansion valve 7, and the evaporator core 2 utilizes the flow of refrigerant inside the core pipeline and the flow of air in the fin gap to transfer heat from the outside air to the mist-shaped high-pressure refrigerant sprayed by the small hole of the expansion valve 7 through the heat transfer effect of the aluminum flat tube and the fin, and the refrigerant rapidly absorbs heat to vaporize into a gaseous state, so that the surface temperature of the evaporator core 2 drops, and the air flows through the evaporator core 2 and is cooled and then blown out from the air outlet, thereby realizing the cooling of the vehicle cabin.

[0043] The air conditioning filter element 4 can be a regular square shape, or it can be an irregular shape based on the shape of the outer shell 1. This embodiment does not limit this. The specific type of air conditioning filter element 4 can be a regular filter paper type filter element, an activated carbon filter element, a composite filter element, etc.

[0044] The evaporator core 2 can adopt common models and structures in the field, and this embodiment does not limit it.

[0045] The internal and external circulation damper 3 is a key component of the air circulation system. By controlling the position of the internal and external circulation damper 3, the air inside the vehicle is adjusted to either internal or external circulation. It is understood that the evaporator assembly also includes components for controlling the internal and external circulation damper 3, such as internal and external circulation actuators. When connected, these components can control the internal and external circulation damper 3 to be in different positions, thereby switching between internal and external circulation paths. Optionally, the internal and external circulation damper 3 can be made of highly corrosion-resistant and easily machinable materials, such as plastics, metals (e.g., aluminum alloys or stainless steel), and composite materials. This embodiment does not limit this.

[0046] refer to Figure 2 As shown, the air conditioning filter 4 is set parallel to the evaporator core 2 and is located between the evaporator core 2 and the internal and external circulation damper 3. Thus, an internal and external circulation air passage is formed between the air conditioning filter 4 and the evaporator core 2. That is, the air circulating inside and outside the vehicle is filtered by the air conditioning filter before entering the evaporator core, which improves the air quality inside the vehicle.

[0047] The air conditioning filter and evaporator core are detachably connected in the outer casing, such as by being fixed in a slot, for easy replacement or maintenance.

[0048] refer to Figure 2 As shown, when the air conditioning system is in recirculation mode, the ventilation holes 14 on the outer casing are covered by the internal / external circulation damper 3. At this time, outside air cannot enter, and the interior air enters the evaporator assembly through the air intake duct. Following the internal circulation air passage formed between the air conditioning filter and the internal / external circulation damper 3, it passes sequentially through the air conditioning filter 4 and the evaporator core 2, finally entering the vehicle interior through the air outlet. (Reference) Figure 3 As shown, when the air conditioning system is in external circulation mode, the upper edge of the internal and external circulation damper plate 3 is in contact with the lower edge of the air conditioning filter 4. At this time, the air inside the vehicle cannot enter the evaporator assembly. The external air enters the evaporator assembly through the ventilation hole 14, and passes through the air conditioning filter 4 and the evaporator core 2 in sequence through the ventilation hole 14 and the air conditioning filter 4, and finally enters the vehicle through the air outlet.

[0049] Specifically, refer to Figures 1 to 3As shown, the evaporator assembly provided by the embodiment of the present application integrates the evaporator core 2, the air conditioner filter element 4 and the internal and external circulation air door plate 3 inside the outer shell 1, so that the structure of the evaporator assembly is more compact, the occupied space is reduced, and the evaporator assembly can be integrally disassembled, thereby improving the convenience of maintenance or replacement of components; the air conditioner filter element 4 is located between the evaporator core 2 and the internal and external circulation air door plate 3, forming an internal and external air circulation passage to ensure that the internal and external circulating air passes through the air conditioner filter element 4 for filtration, effectively removing dust, pollen, odors and other harmful substances in the air, and improving the air quality in the vehicle; by adjusting the position of the internal and external circulation air door plate 3, the internal and external circulation modes of the air conditioning system can be flexibly switched; in the internal circulation mode, the internal and external circulation air door plate 3 covers the air vent 14, forming a closed internal circulation air passage, which not only effectively prevents outdoor polluted air from entering the vehicle, but also allows the internal circulation air to enter the air conditioner filter element 4 for filtration; in the external circulation mode, the internal and external circulation air door plate 3 is attached to the edge of the air conditioner filter element 4, allowing outdoor fresh air to enter the vehicle through the air vent 14, which not only realizes effective air renewal, but also ensures that the external circulation air is filtered by the air conditioner filter element 4 before entering the vehicle.

[0050] In an optional embodiment, the outer shell 1 comprises an upper shell 11, a lower shell 12 and an outer cover 13, and the upper shell 11 and the lower shell 12 are connected to the outer cover 13 by snap connection.

[0051] The lower shell 12 is provided with an air vent 14.

[0052] Reference Figure 1 As shown, the outer shell 1 can be composed of the upper shell 11, the lower shell 12 and the outer cover 13, and the upper shell 11 and the lower shell 12 are connected to the outer cover 13 by snap connection; when replacing or cleaning the air conditioner filter element, the snap connection can be disassembled to complete the replacement or cleaning of the air conditioner filter element, thereby improving the convenience of use; the air vent 14 is arranged on the lower shell 12 to facilitate the introduction of outdoor air, realize the external circulation function of the air conditioning system, and improve the air circulation efficiency.

[0053] Optionally, the upper shell 11 and the lower shell 12 can also be connected to the outer cover 13 by other detachable connection methods, such as threaded connection, magnetic attraction connection, etc.

[0054] In an optional embodiment, reference Figure 3 As shown, the upper end edge of the air conditioner filter element 4 is attached to the first part 15 of the outer shell 1, and the upper end edge of the evaporator core 2 is attached to the second part 16 of the outer shell 1.

[0055] The bottom of the air conditioner filter element 4 and the evaporator core 2 is placed on the placement plate; the air conditioner filter element 4, the first part 15, the second part 16, the evaporator core 2 and the placement plate enclose a first space, and the first space is a closed space except for the internal and external circulation air passage.

[0056] The first part 15 refers to the part that fits with the upper edge of the air conditioner filter core, which is used to fix the position of the air conditioner filter core 4, prevent air leakage and ensure the correct air flow path. Through close fitting, it can ensure that the air filtered by the air conditioner filter core 4 can smoothly enter the next air treatment stage.

[0057] The second part 16 refers to the part that fits with the upper edge of the evaporator core 2, which is used to fix the position of the evaporator core 2, prevent air leakage and ensure the correct air flow path. Through close fitting, it can ensure that the refrigerant flows stably in the evaporator core 2 and effectively absorbs the heat in the air.

[0058] The storage plate is a structural member that supports the bottom of the air conditioner filter core and the evaporator core, which plays a fixing and supporting role, ensuring the stability and reliability of these key components during long-term use. At the same time, the storage plate can also provide bottom support for the first space, ensuring the sealing of the space. Further, the storage plate can be made of metal or high-strength plastic, which has good load-bearing capacity and corrosion resistance, and can ensure long-term stable performance.

[0059] Optionally, the storage plate is detachably connected with the outer shell 1, such as being connected with the outer shell 1 through a clamping groove, which facilitates the replacement of the storage plate to adapt to different models of air conditioner filter cores 4 or evaporator cores 2; or the storage plate is fixedly connected with the outer shell 1, such as being welded with the outer shell 1, to ensure the stability of the storage plate.

[0060] Specifically, the air conditioner filter core 4, the first part 15, the second part 16, the evaporator core 2 and the storage plate together enclose the first space, which is a closed space except for the internal and external air circulation passages, which helps to reduce energy loss and ensure that the air flows along the correct route. Whether it is internal circulation or external circulation, the air entering the room has been filtered by the air conditioner filter core 4 and cooled by the evaporator core 2, further improving the effectiveness of filtration and cooling.

[0061] In an alternative embodiment, as shown in Figure 3 The evaporator assembly also includes an air conditioner filter core limiting plate 5, which is located on the storage plate, and the bottom of the air conditioner filter core 4 is located in the air conditioner filter core limiting plate 5.

[0062] The air conditioner filter core limiting plate 5 is fixedly connected with the storage plate and can be made of similar materials as the storage plate, such as high-strength plastic or metal materials.

[0063] Specifically, since the evaporator core 2 has condensate water on the surface during operation, the air conditioner filter core 4 is relatively close to the evaporator core 2, if the air conditioner filter core 4 is not fixed stably, the condensate water on the evaporator core 2 is easy to wet the air conditioner filter core 4, which destroys the use performance of the air conditioner filter core 4, by setting the air conditioner filter core limiting plate 5, the position of the air conditioner filter core 4 can be effectively fixed, and displacement or falling off of the air conditioner filter core 4 during operation is prevented. By combining the air conditioner filter core limiting plate 5 with the storage plate, the overall stability of the evaporator assembly can be further enhanced, which helps to reduce the loosening or damage of components caused by vibration or impact, and improves the durability and reliability.

[0064] In an optional embodiment, the outer shell 1 further comprises: an air conditioner filter core replacement part, the air conditioner filter core replacement part is located on the upper shell and is detachably connected with the upper shell.

[0065] Specifically, the air conditioner filter core replacement part is a special design on the outer shell, which is located on the upper shell and is detachably connected with the upper shell, such as detachable connection with the upper shell through buckles, screws or other connection mechanisms, so that the user or the maintenance personnel can easily replace the air conditioner filter core without disassembling the entire evaporator assembly. The air conditioner filter core replacement part can ensure the stability and safety of the air conditioner filter core during replacement.

[0066] The shape of the air conditioner filter core replacement part can match the shape of the air conditioner filter core, such as a square air conditioner filter core, the air conditioner filter core replacement part can also be square and located directly above the air conditioner filter core, and the size is larger than that of the air conditioner filter core, which is more convenient for replacing the air conditioner filter core.

[0067] In an optional embodiment, the evaporator core 2 is a double-layer parallel flow structure.

[0068] Specifically, the evaporator core 2 with double-layer parallel flow structure adopts a compact flat tube structure, so that the volume of the entire evaporator is relatively small, which helps to save space and makes the evaporator easier to install and maintain; and the heat exchange area is relatively large, and the refrigerating capacity reaches more than 6KW; the double-layer parallel flow structure makes the refrigerant flow horizontally in the core, and the flow rate is uniform, which ensures that the refrigerant can fully and uniformly flow through each flat tube, thereby improving the heat exchange efficiency; since the double-layer parallel flow evaporator core has excellent heat exchange performance, the performance of the entire evaporator assembly is improved.

[0069] In an optional embodiment, referring to Figure 2 The evaporator assembly further comprises: an inside-outside circulation actuator 6, the inside-outside circulation actuator 6 is connected with the inside-outside circulation air door plate 3 through a connecting shaft.

[0070] The inner-outer circulation actuator 6 is a component for controlling the position of the inner-outer circulation damper plate 3. The connecting shaft cooperates with the inner-outer circulation actuator 6. By changing the position of the damper plate, the inner-outer circulation of air is switched. The connecting shaft is usually made of metal, such as steel or stainless steel, to ensure its strength and durability.

[0071] It can be understood that the main function of the inner-outer circulation actuator 6 is to receive instructions from the air conditioner controller. The instructions are usually transmitted in the form of electrical signals, including switching signals and adjustment signals. The actuator usually contains a microprocessor or similar control unit inside to analyze the electrical signals and determine the action of the actuator according to the signal content.

[0072] Specifically, after receiving the instructions from the air conditioner controller, the inner-outer circulation actuator 6 starts the internal motor (which can be a DC motor or an AC motor) according to the instruction content. The motor transmits power to the inner-outer circulation damper plate 3 through the connecting shaft. Under the drive of the motor, the inner-outer circulation damper plate 3 moves along the preset trajectory, thereby changing the circulation state of the air. The efficient heat exchange performance of the evaporator core 2, combined with the precise control of the inner-outer circulation actuator 6 and the inner-outer circulation damper plate 3, can ensure that the refrigeration system can provide stable refrigeration effect in various environments.

[0073] Optionally, the inner-outer circulation actuator 6 and the inner-outer circulation damper plate 3 can also be connected through other transmission mechanisms, such as gears and transmission belts.

[0074] In an optional embodiment, a handle is arranged on the side surface of the evaporator core 2.

[0075] Optionally, the handle can be fixed on the evaporator core by screws, etc. The number of handles can be one or two, and the material of the handle can be metal (such as stainless steel, aluminum alloy), plastic, and composite material, etc. This embodiment does not limit the handle.

[0076] Specifically, when replacing or repairing the evaporator core, the evaporator core can be directly taken out by pulling the handle on the evaporator core, thereby improving the convenience of repairing or replacing the evaporator core.

[0077] The embodiment of the present application also provides an air conditioning system, which comprises the above-mentioned evaporator assembly. The air conditioning system can filter the inner-outer circulation air, thereby improving the air quality in the cab.

[0078] The embodiment of the present application also provides a heavy truck, which comprises the above-mentioned air conditioning system. The air conditioning system of the heavy truck effectively removes impurities in the air, thereby improving the comfort of the driver in the vehicle.

[0079] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0080] It is to be understood that the application is not limited to the precise construction hereinafter described and as shown in the attached drawings, and that various changes in form and detail can be made therein without departing from the application. The scope of the application should only be limited by the appended claims.

Claims

1. An evaporator assembly, characterized by, Comprise: The outer shell (1), evaporator core (2), internal and external circulation air door plate (3) and air conditioner filter core (4); The evaporator core (2), the air conditioner filter core (4) and the internal and external circulation air door plate (3) are arranged inside the outer shell (1), and the outer shell (1) is provided with a ventilation hole (14), the ventilation hole (14) is used for introducing outdoor air; The air conditioner filter core (4) is parallel to the evaporator core (2) and is located between the evaporator core (2) and the internal and external circulation air door plate (3); the air conditioner filter core (4) and the evaporator core (2) form an internal and external circulation air passage; In the case of internal circulation of the air conditioning system, the internal and external circulation air door plate (3) covers the ventilation hole (14), and the air conditioner filter core (4) and the internal and external circulation air door plate (3) form an internal circulation air passage; in the case of external circulation of the air conditioning system, the edge of the upper end of the internal and external circulation air door plate (3) is attached to the edge of the lower end of the air conditioner filter core (4), and the ventilation hole (14) and the air conditioner filter core (4) form an external circulation air passage.

2. The vaporizer assembly of claim 1, wherein, The outer shell comprises: an upper shell (11), a lower shell (12) and an outer cover (13), the upper shell (11) and the lower shell (12) are connected with the outer cover (13) through buckling connection; The lower shell (12) is provided with a ventilation hole (14).

3. The vaporizer assembly of claim 1, wherein, The upper end edge of the air conditioner filter core (4) is attached to the first part (15) of the outer shell (1), and the upper end edge of the evaporator core (2) is attached to the second part (16) of the outer shell (1); The bottom of the air conditioner filter core (4) and the evaporator core (2) is placed on the placement plate; the air conditioner filter core (4), the first part (15), the second part (16), the evaporator core (2) and the placement plate enclose a first space, which is a closed space except for the internal and external circulation air passage.

4. The vaporizer assembly of claim 3, wherein, Further comprising: An air conditioner filter core limiting plate (5); The air conditioner filter core limiting plate (5) is located on the placement plate, and the bottom of the air conditioner filter core (4) is located in the air conditioner filter core limiting plate (5).

5. The vaporizer assembly of claim 4, wherein, The outer shell (1) further comprises: an air conditioner filter core replacement part, the air conditioner filter core replacement part is located on the upper shell and is detachably connected with the upper shell.

6. The vaporizer assembly of claim 1, wherein, The evaporator core (2) is a double-layer parallel flow structure.

7. The vaporizer assembly of claim 1, wherein, The evaporator assembly further comprises: an internal and external circulation actuator (6), the internal and external circulation actuator (6) is connected with the internal and external circulation air door plate (3) through a connecting shaft.

8. The vaporizer assembly of claim 1, wherein, A handle is arranged on the side surface of the evaporator core (2).

9. An air conditioning system characterized by, The air conditioning system comprises the evaporator assembly according to any one of claims 1-8.

10. A heavy duty truck characterized by, The heavy truck comprises the air conditioning system according to claim 9.

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