Air conditioner evaporator structure and engineering instrument

Abstract

The utility model relates to air conditioner evaporator technical field especially, relates to a kind of air conditioner evaporator structure and engineering apparatus, air conditioner evaporator structure includes shell, including upper layer box and lower layer box, the through port is provided between the upper layer box with the lower layer box, the upper layer box with the lower layer box are connected by the through port;Blower, it is set in the upper layer box, the air outlet of the blower is protruding from the upper layer box;Air inlet portion, set in the lower layer box;Evaporator core, it is set in the lower layer box, the evaporator core is set between the air inlet portion with the through port;And heater core, it is set in the lower layer box, the heater core is set between the air inlet portion with the through port.This air conditioner evaporator structure and engineering apparatus can solve the problem that the overall size of existing air conditioner evaporator is larger, difficult to meet the arrangement demand.

Description

Technical Field

[0001] This application relates to the field of air conditioner evaporator technology, and in particular to an air conditioner evaporator structure and engineering device. Background Technology

[0002] Construction machinery is used in various production and construction projects, especially excavators, which are widely used in road construction, forestry and mining, and urban infrastructure. With the miniaturization of construction machinery and the increasing demand for comfort, mini excavators are gradually being equipped with cabs and are required to have air conditioning cooling functions.

[0003] With the increasing demand for miniaturization of engineering machinery, the size of the driver's cab is becoming smaller, leading to increasingly stringent requirements for the size of the air conditioning evaporator. Currently, in existing air conditioning evaporator structures, the main components such as the blower, evaporator core, and heater core are arranged sequentially on the same plane, resulting in a large overall size of the evaporator structure that can no longer meet the layout requirements. Utility Model Content

[0004] In view of this, the purpose of this application is to provide an air conditioner evaporator structure to solve the problem that the existing air conditioner evaporators are too large in overall size and difficult to meet the layout requirements.

[0005] According to a first aspect of this utility model, an air conditioner evaporator structure is provided, wherein the air conditioner evaporator structure includes: a shell, including an upper shell and a lower shell, wherein a passage is provided between the upper shell and the lower shell, and the upper shell and the lower shell are connected through the passage; a blower, disposed in the upper shell, wherein the air outlet of the blower extends out of the upper shell; an air inlet, disposed in the lower shell; an evaporator core, disposed in the lower shell, wherein the evaporator core is disposed between the air inlet and the passage; and a heater core, disposed in the lower shell, wherein the heater core is disposed between the air inlet and the passage.

[0006] Preferably, the air inlet includes: an internal circulation inlet disposed on a first side of the lower housing, the internal circulation inlet connecting the interior of the cab and the interior of the lower housing; an external circulation inlet disposed on a second side of the lower housing, the external circulation inlet connecting the exterior of the cab and the interior of the lower housing; and an internal / external circulation damper installed on the external circulation inlet for opening or closing the external circulation inlet.

[0007] Preferably, the lower housing has an opening on its first side, and the air conditioner evaporator structure also includes a front cover plate that covers the opening. The front cover plate has a grille portion and is installed in the lower housing by wing bolts.

[0008] Preferably, the air inlet further includes: an internal circulation filter element disposed in the lower housing, the internal circulation filter element being installed at the opening of the housing, and the internal circulation inlet being connected to the internal circulation filter element; and an external circulation filter element disposed in the lower housing, the external circulation filter element being installed at the opening of the housing, and the external circulation inlet being connected to the external circulation filter element.

[0009] Preferably, the air conditioner evaporator structure further includes an electronic water valve, which is installed on the second side of the lower housing, and the heater core extends out of the lower housing, with the electronic water valve connected to the heater core.

[0010] Preferably, the air conditioner evaporator structure further includes an expansion valve, which is disposed on the second side of the lower housing, partially extending into the lower housing, and connected to the evaporator core.

[0011] Preferably, the blower is equipped with a speed control module, which is located within the air intake path of the blower.

[0012] Preferably, a drip pipe is provided at the bottom of the lower box, and the drip pipe is connected to the interior of the lower box.

[0013] Preferably, the lower chamber is provided with a first support and a second support, the evaporator core is mounted on the first support and is vertically arranged in the lower chamber, and the heater core is mounted on the second support and is inclined in the lower chamber.

[0014] According to a second aspect of the present invention, an engineering device is provided, wherein the engineering device includes a driver's cab and an air conditioning evaporator structure as described above, and the air outlet of the blower is connected to the air outlet of the driver's cab.

[0015] This utility model discloses an air conditioner evaporator structure and engineering device, the shell of which includes an upper housing and a lower housing. A passageway connects the upper and lower housings. A blower is housed in the upper housing, with its outlet extending outwards. An air inlet is located in the lower housing. The evaporator core and heater core are housed in the lower housing, positioned between the air inlet and the passageway. This arrangement results in a more compact overall layout of the air conditioner evaporator, higher space utilization, and a change in airflow path from planar to three-dimensional flow, effectively solving the problem of existing air conditioner evaporators having a large overall size and difficulty in meeting layout requirements.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the air conditioner evaporator according to this utility model.

[0019] Figure 2 This is a schematic diagram of the air conditioner evaporator structure according to this utility model from another angle.

[0020] Figure 3 This is a cross-sectional view (AA) of the air conditioner evaporator structure according to this utility model.

[0021] Figure 4 This is a BB cross-sectional view of the air conditioner evaporator structure according to this utility model.

[0022] Figure 5 This is a CC cross-sectional view of the air conditioner evaporator structure according to this utility model.

[0023] Reference numerals: 11-Upper housing; 12-Lower housing; 2-Blower; 20-Air outlet; 21-Speed ​​control module; 3-Evaporator core; 30-First bracket; 31-Expansion valve; 4-Heater core; 40-Second bracket; 41-Electronic water valve; 5-Internal circulation inlet; 51-Internal circulation filter; 6-External circulation inlet; 61-External circulation filter; 7-Internal and external circulation damper; 8-Front cover; 80-Grate section; 81-Butterfly bolt; 9-Drip pipe; 10-Airflow path. Detailed Implementation

[0024] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0025] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0026] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0027] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0028] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0029] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0030] The terminology used herein is for the purpose of describing various examples only and is not intended to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0031] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0032] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0033] like Figures 1 to 5 As shown, according to a first aspect of the present invention, an air conditioner evaporator structure is provided, which includes a shell, a blower 2, an air inlet, an evaporator core 3, and a heater core 4.

[0034] In the following description, reference will be made to Figures 1 to 5 The specific structure of the aforementioned components and their connection relationships are described in detail in the description of the air conditioner evaporator structure.

[0035] like Figures 1 to 5 As shown, in this embodiment, the engineering machinery can specifically be an excavator, and the air conditioning evaporator structure can be installed in the cab of the excavator. The housing can include an upper housing 11 and a lower housing 12. A passage (not shown) is provided between the upper housing 11 and the lower housing 12. The upper housing 11 can communicate with the lower housing 12 through the passage to allow airflow. A blower 2 can be installed inside the upper housing 11, and the air outlet 20 of the blower 2 can extend out of the upper housing 11. An air inlet can be installed in the lower housing 12. An evaporator core 3 can be installed inside the lower housing 12. The evaporator core 3 is located between the air inlet and the passage. A heater core 4 can be installed inside the lower housing 12. The heater core 4 is located between the air inlet and the passage. This design makes the overall layout of the air conditioner evaporator more compact and the space utilization rate higher. It also changes the airflow path 10 from planar flow to three-dimensional flow, thus effectively solving the problem that the existing air conditioner evaporators are too large in size and cannot meet the layout requirements.

[0036] Preferred, such as Figures 1 to 5 As shown in the embodiment, the upper housing 11 and the lower housing 12 of the shell can be approximately rectangular in shape. Airflow can enter through the lower housing 12 and exit through the upper housing 11. During this process, the airflow can pass through the evaporator core 3 and the heater core 4 to achieve heat exchange.

[0037] Preferred, such as Figures 1 to 5 As shown, in this embodiment, the air inlet may include an internal circulation inlet 5, an external circulation inlet 6, and internal and external circulation dampers 7. The internal circulation inlet 5 may be located on the first side of the lower housing 12 (e.g., [example of a damper]). Figure 4 The lower side of the lower housing 12 shown. The internal circulation inlet 5 connects the interior of the cab with the interior of the lower housing 12, allowing air from the cab to flow into the lower housing 12 through the internal circulation inlet 5. The external circulation inlet 6 can be located on the second side of the lower housing 12 (such as...). Figure 4 (As shown on the left side of the lower housing 12), the external circulation inlet 6 can be a tubular structure. The external circulation inlet 6 connects the outside of the cab to the inside of the lower housing 12, allowing air from outside the cab to flow into the lower housing 12 through the external circulation inlet 6. An internal / external circulation damper 7 can be bolted to the top of the external circulation inlet 6. The operator can open or close the external circulation inlet 6 using the internal / external circulation damper 7.

[0038] Preferred, such as Figures 1 to 5 As shown, in this embodiment, the first side of the lower housing 12 may have a rectangular opening (not shown) for operators to perform maintenance on the components inside the lower housing 12. The air conditioner evaporator structure may also include a front cover plate 8. The front cover plate 8 may be placed over the outside of the housing opening to cover it. The front cover plate 8 may be installed on the lower housing 12 using wing bolts 81, making it easy for operators to install and remove the front cover plate 8. In addition, a grille portion 80 may be formed on the front cover plate 8 to allow airflow through the internal circulation inlet 5.

[0039] Preferred, such as Figures 1 to 4As shown, in this embodiment, the air inlet may further include an internal circulation filter element 51 and an external circulation filter element 61. The internal circulation filter element 51 can be disposed inside the lower housing 12. The internal circulation filter element 51 can be installed at the housing opening via a slot. The internal circulation inlet 5 is connected to the internal circulation filter element 51, allowing the internal circulation filter element 51 to filter the airflow entering from the internal circulation inlet 5. Similarly, the external circulation filter element 61 can also be disposed inside the lower housing 12. The external circulation filter element 61 can be installed at the housing opening via a slot. The external circulation inlet 6 is connected to the external circulation filter element 61, allowing the external circulation filter element 61 to filter the airflow entering from the external circulation inlet 6. This arrangement allows operators to simultaneously disassemble and replace both the internal circulation filter element 51 and the external circulation filter element 61 after removing the front cover plate 8, greatly improving maintenance efficiency.

[0040] In addition, preferred, such as Figures 1 to 4 As shown, in this embodiment, the air conditioner evaporator structure may further include an electronic water valve 41. Specifically, the electronic water valve 41 can be bolted to the second side of the lower housing 12. The end of the heater core 4 can extend out of the lower housing 12, allowing the electronic water valve 41 to communicate with the heater core 4. By adjusting the electronic water valve 41, the water temperature in the heater core 4 can be adjusted, enabling the heater core 4 to exchange heat with the airflow, thereby heating the airflow passing through the heater core 4.

[0041] Further optimized, such as Figures 1 to 4 As shown, in this embodiment, the air conditioner evaporator structure may further include an expansion valve 31. The expansion valve 31 may be located on the second side of the lower housing 12. The expansion valve 31 may partially extend into the lower housing 12 and be connected to the evaporator core 3. The expansion valve 31 can be fixed by the evaporator core 3. This arrangement ensures that the electronic water valve 41, the expansion valve 31, and the internal and external circulation dampers 7 are all located on the second side of the lower housing 12, facilitating disassembly and maintenance by operators.

[0042] Furthermore, preferably, such as Figure 4 and Figure 5As shown, in this embodiment, the passage can be located on the side of the housing away from the internal circulation inlet 5. Specifically, a partition is provided between the upper housing 11 and the lower housing 12, and the passage can be formed on the partition, with the passage located at the end of the partition away from the internal circulation inlet 5. Preferably, a first support 30 and a second support 40 can also be provided inside the lower housing 12. The first support 30 can be located between the internal circulation inlet 5 and the passage, and the second support 40 can be located between the first support 30 and the passage. The evaporator core 3 can be snapped onto the first support 30. The evaporator core 3 can be approximately rectangular in shape, and the evaporator core 3 can be vertically arranged inside the lower housing 12 (i.e., perpendicular to the bottom plate of the lower housing 12). The heater core 4 can be snapped onto the second support 40. The heater core 4 can be approximately rectangular in shape, and it can be installed at an angle (i.e., not parallel or perpendicular to the bottom plate of the lower housing 12) within the lower housing 12. This arrangement allows for the installation of a relatively large heater core 4 within the limited space of the lower housing 12.

[0043] In addition, preferred, such as Figure 3 and Figure 5 As shown, in this embodiment, the blower 2 may also be equipped with a speed control module 21 for adjusting the airflow of the blower 2. The speed control module 21 may be located within the air intake path of the blower 2. That is, when the blower 2 is started, the gas in the upper housing 11 is drawn into the blower 2, and the airflow flows from the lower housing 12 into the upper housing 11. The speed control module 21 is located on the airflow path 10, thereby cooling the speed control module 21.

[0044] Preferred, such as Figures 2 to 5 As shown in the embodiment, a drip pipe 9 may also be provided at the bottom of the lower housing 12. The drip pipe 9 can connect the inside of the lower housing 12 with the outside of the lower housing 12, so that condensate inside the lower housing 12 can be discharged to the lower housing 12 through the drip pipe 9. The drip pipe 9 can be designed with a sealed end to improve the airtightness of the lower housing 12.

[0045] Furthermore, according to a second aspect of this utility model, an engineering device is provided, the engineering device including a cab and an air conditioning evaporator structure as described above. The air conditioning evaporator structure can be installed in the cab, and the air outlet 20 of the blower 2 of the air conditioning evaporator structure can be connected to the air outlet of the cab through a corrugated pipe or other air duct.

[0046] In operation, blower 2 draws air from the periphery. The airflow first passes through the internal circulation filter 51 (if the internal and external circulation dampers 7 are open and the external circulation inlet 6 is open, the airflow passes through both the internal circulation filter 51 and the external circulation filter 61 simultaneously) into the lower housing 12. Then, it passes sequentially through the evaporator core 3, heater core 4, the inlet, and the speed control module 21, finally entering blower 2 and being blown out through the blower 2's outlet 20. During cooling, heater core 4 does not exchange heat; only evaporator core 3 does. During maximum heating, evaporator core 3 does not exchange heat; only heater core 4 does. During temperature regulation, heater core 4 and evaporator core 3 exchange heat simultaneously, and the heat exchange capacity of heater core 4 is adjusted via electronic water valve 41 to regulate the air temperature.

[0047] During use, the air conditioner evaporator structure places the blower 2 above the evaporator core 3 and the heater core 4, changing the airflow direction from a simple planar flow to a three-dimensional flow, greatly improving space utilization and accommodating the needs of each component. This allows the air conditioner evaporator structure to achieve heating, cooling, and temperature regulation functions while reducing its overall size.

[0048] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An air conditioning evaporator structure, installed in the driver's cab, characterized in that, The air conditioner evaporator structure includes: The housing includes an upper box and a lower box, with a passage provided between the upper box and the lower box, and the upper box and the lower box are connected through the passage; A blower is installed inside the upper housing, and the blower's air outlet extends out of the upper housing. The air inlet is located in the lower housing. An evaporator core is disposed within the lower housing, and the evaporator core is positioned between the air inlet and the passage opening; and The heater core is disposed within the lower housing, and the heater core is positioned between the air inlet and the passage.

2. The air conditioner evaporator structure according to claim 1, characterized in that, The air inlet includes: An internal circulation inlet is located on the first side of the lower compartment, and the internal circulation inlet connects the interior of the cab with the interior of the lower compartment; An external circulation inlet is located on the second side of the lower housing, the external circulation inlet connecting the outside of the cab to the inside of the lower housing; and An internal and external circulation damper is installed at the external circulation inlet and is used to open or close the external circulation inlet.

3. The air conditioner evaporator structure according to claim 2, characterized in that, The lower housing has an opening on its first side. The air conditioner evaporator structure also includes a front cover plate, which covers the opening. A grille is formed on the front cover plate, and the front cover plate is installed on the lower housing by wing bolts.

4. The air conditioner evaporator structure according to claim 3, characterized in that, The air inlet also includes: An internal circulation filter element is disposed within the lower housing, the internal circulation filter element is installed at the opening of the housing, and the internal circulation inlet is connected to the internal circulation filter element; and An external circulation filter element is disposed in the lower housing. The external circulation filter element is installed at the opening of the housing, and the external circulation inlet is connected to the external circulation filter element.

5. The air conditioner evaporator structure according to claim 2, characterized in that, The air conditioner evaporator structure also includes an electronic water valve, which is installed on the second side of the lower housing. The heater core extends out of the lower housing, and the electronic water valve is connected to the heater core.

6. The air conditioner evaporator structure according to claim 2, characterized in that, The air conditioner evaporator structure also includes an expansion valve, which is located on the second side of the lower housing. The expansion valve extends into the lower housing and is connected to the evaporator core.

7. The air conditioner evaporator structure according to claim 1, characterized in that, The blower is equipped with a speed control module, which is located within the air intake path of the blower.

8. The air conditioner evaporator structure according to claim 1, characterized in that, A drip pipe is installed at the bottom of the lower box, and the drip pipe is connected to the interior of the lower box.

9. The air conditioner evaporator structure according to claim 1, characterized in that, The lower chamber is provided with a first support and a second support. The evaporator core is installed on the first support and is vertically arranged in the lower chamber. The heater core is installed on the second support and is inclined in the lower chamber.

10. An engineering instrument, characterized in that, The engineering equipment includes a driver's cab and an air conditioning evaporator structure as described in any one of claims 1 to 9, wherein the air outlet of the blower is connected to the air outlet of the driver's cab.

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