Air conditioner evaporator and engineering vehicle

Abstract

The utility model relates to vehicle technical field, specifically disclose air conditioner evaporimeter and engineering vehicle, this air conditioner evaporimeter includes box, work core body and fan, is provided with the first cavity and second cavity that communicate in the box, is provided with the air inlet and air outlet on the box, the air inlet communicates with the second cavity, the air outlet and the first cavity communicate, the air inlet, second cavity, first cavity and air outlet form the flow channel, work core body sets up in the second cavity, the fan sets up in the first cavity, and the fan is located the top of work core body. This air conditioner evaporimeter makes the fan set up in the first cavity, and the fan is located the top of work core body, has further shortened the overall size of air conditioner evaporimeter along the horizontal direction. In conclusion, the air conditioner evaporimeter has small volume, avoids the space of air conditioner evaporimeter whole occupation driver's room to be bigger, and the evaporimeter assembly is convenient in driver's room arrangement.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to air conditioning evaporators and engineering vehicles. Background Technology

[0002] As construction machinery develops towards intelligence and humanization, the driver's cab, as the core operating area, has become an important indicator for measuring the overall performance of the equipment in terms of environmental comfort.

[0003] Existing air conditioning systems for construction machinery typically employ a linear airflow layout of "working core - fan - air outlet," where the evaporator assembly consists of a heating core (such as a PTC heating module), a cooling core (such as a copper tube finned evaporator), and a fan arranged side-by-side. This design presents significant technical bottlenecks: the structural limitations of the linear arrangement of multiple modules result in a large evaporator assembly size, which occupies a significant amount of space in the driver's cab, making it inconvenient to arrange the evaporator assembly in situations with limited space in the driver's cab.

[0004] Therefore, there is an urgent need for air conditioning evaporators and engineering vehicles to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an air conditioning evaporator and engineering vehicles to solve the problem that the existing air conditioning evaporators usually adopt a linear airflow layout of "working core-fan-air outlet". This layout results in a large volume of evaporator components, which in turn occupies a large space in the driver's cab. It is inconvenient to arrange the evaporator components when the driver's cab space is limited.

[0006] On the one hand, this utility model provides an air conditioner evaporator, which includes:

[0007] The housing has a first cavity and a second cavity that are connected to each other. The housing has an air inlet and an air outlet. The air inlet is connected to the second cavity, and the air outlet is connected to the first cavity. The air inlet, the second cavity, the first cavity and the air outlet form a flow channel.

[0008] The working core is disposed in the second cavity;

[0009] A fan is disposed in the first cavity and is located above the working core.

[0010] As a preferred technical solution for an air conditioner evaporator, the flow channel includes an external circulation flow channel and an internal circulation flow channel, the working core includes a cooling core and a heating core, and the air inlet includes an internal circulation air inlet and an external circulation air inlet.

[0011] The housing is provided with a connecting ventilation duct. One end of the connecting ventilation duct is connected to the external circulation air outlet and the other end is connected to the second cavity. The external circulation air outlet, the connecting ventilation duct, the second cavity, the first cavity and the air outlet form the external circulation channel. The internal circulation air outlet, the second cavity, the first cavity and the air outlet form the internal circulation channel.

[0012] The air conditioner evaporator has an internal circulation state and an external circulation state. In the internal circulation state, the connecting ventilation duct is closed, and in the external circulation state, the connecting ventilation duct is open.

[0013] As a preferred technical solution for an air conditioner evaporator, a damper is provided in the connecting ventilation duct, and the damper has an open state for opening the connecting ventilation duct and a closed state for closing the connecting ventilation duct.

[0014] As a preferred technical solution for an air conditioner evaporator, the housing includes a first plate and a second plate opposite to each other, the internal circulation air outlet is disposed on the first plate, and the external circulation air outlet is disposed on the second plate.

[0015] As a preferred technical solution for an air conditioner evaporator, the housing further includes a third plate, which is connected to the second plate. The third plate is provided with an insertion hole, and the second plate is provided with a fixing member. The fixing member is provided with a slot opposite to the insertion hole.

[0016] The air conditioner evaporator also includes an external circulation filter element, which passes through the insertion hole and is inserted into the slot so that the external circulation filter element covers the external circulation air outlet.

[0017] As a preferred technical solution for an air conditioner evaporator, a sealing plate is also included, which is detachably installed on the housing and seals the socket.

[0018] As a preferred technical solution for an air conditioner evaporator, it also includes an internal circulation filter element, which is detachably mounted on the first plate and covers the internal circulation air outlet.

[0019] As a preferred technical solution for an air conditioner evaporator, along the flow direction of the airflow in the flow channel, the cooling core is located upstream of the heating core, and the included angle between the cooling core and the heating core is α, where α < 180°.

[0020] As a preferred technical solution for an air conditioner evaporator, two air outlets are provided; the housing includes a fourth plate and a fifth plate arranged opposite to each other; one air outlet is provided on the fourth plate, and the other air outlet is provided on the fifth plate;

[0021] There are two fans, and the two outlets of the two fans are respectively set to correspond one-to-one with the two air outlets, so that the air of the first cavity is discharged from the two air outlets.

[0022] On the other hand, this utility model provides an engineering vehicle, including a cab, a seat, and an air conditioning evaporator as described in any of the above embodiments, wherein the air conditioning evaporator and the seat are disposed in the cab, and the air conditioning evaporator is located behind the seat.

[0023] The air conditioner evaporator and engineering vehicle provided by this utility model have at least the following beneficial effects:

[0024] The air conditioning evaporator includes a housing, a working core, and a fan. The housing contains a first chamber and a second chamber that are connected. The housing has an air inlet and an air outlet. The air inlet communicates with the second chamber, and the air outlet communicates with the first chamber. The air inlet, second chamber, first chamber, and air outlet form a flow channel. The working core is located in the second chamber. The fan is located in the first chamber, above the working core. When the air conditioning evaporator is working, gas passes sequentially through the air inlet, the cooling core, the heating core, the fan, and the air outlet, finally entering the driver's cab. The operating states of the cooling and heating cores can be selectively adjusted according to the driver's needs, thereby heating or cooling the gas passing through the evaporator. By placing the fan in the first chamber and above the working core, the overall horizontal dimension of the air conditioning evaporator is further shortened. In summary, this air conditioning evaporator is small in size, avoids occupying a large space in the driver's cab, and facilitates the installation of the evaporator assembly in the driver's cab. Attached Figure Description

[0025] Figure 1 This is a cross-sectional view of an air conditioner evaporator in the prior art;

[0026] Figure 2 This is a cross-sectional view of the air conditioner evaporator in an embodiment of the present invention. Figure 1 ;

[0027] Figure 3 This is a cross-sectional view of the air conditioner evaporator in an embodiment of the present invention. Figure 2 ;

[0028] Figure 4 This is a schematic diagram of the structure of the air conditioner evaporator in an embodiment of the present invention. Figure 1 ;

[0029] Figure 5 This is a schematic diagram of the structure of the air conditioner evaporator in an embodiment of the present invention. Figure 2 .

[0030] In the picture:

[0031] Z, vertical direction;

[0032] 100. Driver's cab;

[0033] 1. Housing; 11. First cavity; 12. Second cavity; 131. Internal circulation air outlet; 132. External circulation air outlet; 14. Air outlet; 171. Connecting ventilation duct; 172. Air damper;

[0034] a. First plate; b. Second plate; b1. Fastener; c. Third plate; c1. Insertion hole; d. Fourth plate; e. Fifth plate; f. Partition;

[0035] 21. Cooling core; 22. Heating core;

[0036] 3. Fan; 4. External circulation filter element; 5. Internal circulation filter element; 6. Sealing plate. Detailed Implementation

[0037] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0041] like Figure 1 As shown, existing air conditioning evaporators typically adopt a linear airflow layout of "working core - fan 3 - air outlet 14," where the evaporator assembly consists of a heating core 22 (such as a PTC heating module), a cooling core 21 (such as a copper tube finned evaporator), and a fan 3 arranged side by side. This design has a significant technical bottleneck: the structural limitation of the linear arrangement of multiple modules results in the air conditioning system occupying critical space on the top and sides of the driver's cab.

[0042] To solve the above problems, such as Figures 2 to 5 As shown, this embodiment provides an air conditioning evaporator, which includes a housing 1, a working core, and a fan 3. The housing 1 contains a first cavity 11 and a second cavity 12 that communicate with each other. The housing 1 has an air inlet and an air outlet 14. The air inlet communicates with the second cavity 12, and the air outlet 14 communicates with the first cavity 11. The air inlet, second cavity 12, first cavity 11, and air outlet 14 form a flow channel. The working core is located in the second cavity 12. The fan 3 is located in the first cavity 11, above the working core. When the air conditioning evaporator is working, gas passes sequentially through the air inlet, the cooling core 21, the heating core 22, the fan 3, and the air outlet 14, finally entering the cab 100. The operating states of the cooling core 21 and the heating core 22 can be selectively adjusted according to the driver's needs to heat or cool the gas passing through the air conditioning evaporator. This air conditioning evaporator, by placing the working core in the second cavity 12 and the fan 3 inside the first cavity 11, with the fan 3 positioned above the working core, and the first and second cavities 11 and 12 arranged vertically in the Z direction, further shortens the overall horizontal dimension of the air conditioning evaporator. In summary, this air conditioning evaporator is small in size, avoids occupying a large space in the driver's cab, and facilitates the arrangement of the evaporator assembly within the driver's cab.

[0043] Optionally, the box 1 is a hexahedron, with two opposite side panels being the first panel a and the second panel b, the top panel being the third panel c, and the other two opposite side panels being the fourth panel d and the fifth panel e.

[0044] Optionally, the flow channel includes an external circulation flow channel and an internal circulation flow channel, the working core includes a cooling core 21 and a heating core 22, and the air inlet includes an internal circulation air inlet 131 and an external circulation air inlet 132. The internal circulation air inlet 131 and the external circulation air inlet 132 are respectively disposed on the first plate a and the second plate b. The housing 1 is provided with a connecting ventilation duct 171. The external circulation air inlet 132, the connecting ventilation duct 171, the second cavity 12, the first cavity 11 and the air outlet 14 form the external circulation flow channel, and the internal circulation air inlet 131, the second cavity 12, the first cavity 11 and the air outlet 14 form the internal circulation flow channel. The air conditioning evaporator has an internal circulation state and an external circulation state. In the internal circulation state, the connecting ventilation duct 171 is closed, and in the external circulation state, the connecting ventilation duct 171 is open. In this embodiment, by opening and closing the connecting ventilation duct 171, the external circulation channel and the external circulation vent 132, as well as the internal circulation channel and the internal circulation vent 131, can be connected. In this embodiment, the second plate b is abutted against the side wall of the cab 100 where the air conditioning vent is provided, so that the external circulation vent 132 is connected to the air conditioning vent, and the internal circulation vent 131 is directly opposite the interior of the cab 100. When external circulation is needed, the connecting ventilation duct 171 is opened; when internal circulation is needed, the connecting ventilation duct 171 is closed.

[0045] Optionally, a damper 172 is provided inside the ventilation duct 171 to allow it to open and close. Along the airflow direction within the ventilation duct 171, the internal circulation vent 131 and the external circulation vent 132 are located on either side of the damper 172. In this embodiment, the internal circulation vent 131 is located upstream of the external circulation vent 132. When the air conditioner evaporator requires external circulation, the damper 172 is in external circulation mode. Under the action of the fan 3, the air from the external circulation vent 132 passes through the damper 172 and enters the first air duct 15. Since the housing 1 is under negative pressure at this time, the airflow within the ventilation duct 171 will not flow out from the internal circulation vent 131. When the air conditioner evaporator needs internal circulation, the damper 172 is in internal circulation mode. At this time, the damper 172 prevents the internal circulation airflow from entering the ventilation duct 171, so that the internal circulation airflow can only pass through the cooling core 21 and the heating core 22 before being discharged from the air conditioner evaporator. The damper 172 cuts off the external circulation air outlet 132 and the internal circulation air outlet 131, so that the internal circulation air outlet 131 draws in the airflow in the cab 100 to achieve internal circulation mode.

[0046] Optionally, the housing 1 also includes a partition f, which is spaced apart from the first plate a, and the partition f abuts against the fourth plate d and the fifth plate e respectively, thereby forming a ventilation duct 171. The space between the partition f and the second plate b is respectively formed into a first cavity 11 and a second cavity 12 in the vertical direction.

[0047] Optionally, the air conditioner evaporator also includes an internal circulation filter element 5, which is detachably mounted on the first plate a and covers the internal circulation air outlet 131. In this embodiment, the internal circulation filter is located outside the housing 1 and is bolted to the housing 1, which facilitates the replacement of the internal circulation filter. Specifically, when the internal circulation filter element 5 needs to be disassembled for maintenance, the bolts are loosened, and the internal circulation filter element 5 is removed, enabling quick replacement of the internal circulation filter element 5.

[0048] In other embodiments, the internal circulation filter element 5 can also be snapped onto the housing 1. Additionally, when the air conditioner evaporator requires external circulation, the damper 172 is open, and the internal circulation filter element 5 provides some protection against the outflow of gas from the internal circulation vent 131.

[0049] In the prior art, the external circulation filter element 4 is usually located outside the cab 100. When replacing the external circulation filter element 4, it needs to be replaced from outside the cab 100. Furthermore, when the installation location of the external circulation filter element 4 is relatively narrow, it is not conducive to the quick installation and removal by the staff.

[0050] To address this issue, the housing 1 may optionally include a third plate c, which is connected to the second plate b. The third plate c has an insertion hole c1, and the second plate b has a fixing member b1 with a slot opposite to the insertion hole c1. The air conditioning evaporator also includes an external circulation filter 4, which passes through the insertion hole c1 and is inserted into the slot, so that the external circulation filter 4 covers the external circulation air vent 132. In this embodiment, the operator can insert or remove the external circulation filter 4 from the slot from within the cab 100, thereby achieving quick installation and removal of the external circulation filter 4.

[0051] Optionally, the socket c1 is attached to the second plate b, the fixing bracket is fixed to the second plate b, the insertion groove is attached to the second plate b, the slot is attached to the second plate b and is opposite to the socket c1. When the external circulation filter element 4 passes through the socket c1 and is inserted into the slot, the external circulation filter element 4 covers the external circulation air outlet 132.

[0052] Optionally, the air conditioning evaporator also includes a sealing plate 6, which is detachably mounted on the housing 1 and seals the socket c1. In this embodiment, the sealing plate 6 includes a horizontal plate and a vertical plate at right angles. The vertical plate is fitted with a second plate b, and the horizontal plate is fitted with a third plate c, so that the sealing plate 6 seals the socket c1. The sealing plate 6 and the housing 1 are connected by fasteners such as bolts. When the external circulation filter 4 needs to be disassembled for maintenance, the bolts on the sealing plate 6 are loosened, the external circulation filter 4 is pulled out upwards, and then a new external circulation filter 4 is replaced, enabling quick replacement of the external circulation filter 4 in the cab.

[0053] In other embodiments, the sealing plate 6 and the housing 1 can also be snap-fitted together. The sealing plate 6 can confine the external circulation filter element 4 within the slot and also prevent external objects from entering the housing 1 through the insertion hole c1.

[0054] Specifically, when the air conditioner evaporator is in external circulation mode, under the action of the fan 3, the airflow outside the cab enters the evaporator through the external circulation filter 4, then enters the fan 3 through the connecting ventilation duct 171, the cooling core 21, and the heating core 22, and finally exits from the air outlet 14, thus achieving cooling or heating of the cab; when the air conditioner evaporator is in internal circulation mode, under the action of the fan 3, the airflow inside the cab enters the fan 3 through the internal circulation filter 5, the cooling core 21, and the heating core 22, and finally exits from the air outlet 14, thus achieving cooling or heating of the cab.

[0055] Optionally, along the airflow direction within the channel, the cooling core 21 is located upstream of the heating core 22, and the included angle between the cooling core 21 and the heating core 22 is α, where α < 180°. In this embodiment, the cooling core 21 and the heating core 22 are arranged at an angle, thereby folding the flow channel and shortening the overall horizontal dimension of the air conditioner evaporator. This arrangement can further reduce the overall horizontal dimension of the air conditioner evaporator.

[0056] Optionally, two air outlets 14 are provided; the housing 1 includes a fourth plate d and a fifth plate e arranged opposite to each other; one air outlet 14 is located on the fourth plate d, and the other air outlet 14 is located on the fifth plate e; two fans 3 are provided, with their two outlets corresponding one-to-one with the two air outlets 14, so that the air from the first cavity 11 is discharged from the two air outlets 14. In this embodiment, since there are bends in the flow channel, the flow resistance of the airflow will increase. To improve this problem, two fans 3 are provided. When the two fans 3 work simultaneously, the negative pressure in the housing 1 can be increased, thereby increasing the airflow velocity. To avoid the air outlets 14 obstructing the airflow, two air outlets 14 are provided to increase the area of ​​the air outlets 14.

[0057] In other embodiments, the two fans 3 can be replaced with a single dual-turbine fan 3.

[0058] Optionally, the housing 1 includes a fourth plate d and a fifth plate e arranged opposite to each other; two air outlets 14 are respectively disposed on the fourth plate d and the fifth plate e. In this embodiment, this arrangement can increase the diffusion speed of the airflow flowing out of the air outlets 14, thereby making the temperature inside the cab 100 more uniform and effectively improving the problem of large local temperature differences.

[0059] Optionally, the air outlet 14 on the fourth plate d is located on the side of the fourth plate d closer to the third plate c; the air outlet 14 on the fifth plate e is located on the side of the fifth plate e closer to the third plate c; the internal circulation air outlet 131 on the first plate a is located on the side of the first plate a away from the third plate c; and the external circulation air outlet 132 on the second plate b is located on the side of the second plate b closer to the third plate c.

[0060] In other embodiments, the air outlet 14 may also be located on the third plate c.

[0061] This embodiment also provides an engineering vehicle, including a cab 100 and an air conditioning evaporator as described above. The cab 100 is provided with an air conditioning vent connecting to the outside. The housing 1 includes a first plate a and a second plate b facing each other. The air inlet includes an internal circulation vent 131 and an external circulation vent 132, which are respectively located on the first plate a and the second plate b. The air conditioning evaporator is located inside the cab 100, and the second plate b is fitted against the inner wall of the cab 100 so that the external circulation vent 132 communicates with the air conditioning vent. In this embodiment, this arrangement effectively saves space inside the cab 100.

[0062] Alternatively, the air conditioning evaporator can be located directly behind the driver's seat in the cab, overcoming the limitations of the small space in the cab 100 in the prior art, and allowing the external circulation filter 4 and the internal circulation filter 5 to be installed and removed within the cab 100.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An air conditioner evaporator, characterized in that, include: The box (1) is provided with a first cavity (11) and a second cavity (12) that are connected. The box (1) is provided with an air inlet and an air outlet (14). The air inlet is connected to the second cavity (12), and the air outlet (14) is connected to the first cavity (11). The air inlet, the second cavity (12), the first cavity (11) and the air outlet (14) form a flow channel. The working core is disposed in the second cavity (12); The fan (3) is disposed in the first cavity (11) and is located above the working core.

2. The air conditioner evaporator according to claim 1, characterized in that, The flow channel includes an external circulation flow channel and an internal circulation flow channel, the working core includes a cooling core (21) and a heating core (22), and the air inlet includes an internal circulation air inlet (131) and an external circulation air inlet (132). The housing (1) is provided with a connecting ventilation duct (171). One end of the connecting ventilation duct (171) is connected to the external circulation air outlet (132) and the other end is connected to the second cavity (12). The external circulation air outlet (132), the connecting ventilation duct (171), the second cavity (12), the first cavity (11) and the air outlet (14) form the external circulation channel. The internal circulation air outlet (131), the second cavity (12), the first cavity (11) and the air outlet (14) form the internal circulation channel. The air conditioner evaporator has an internal circulation state and an external circulation state. In the internal circulation state, the connecting ventilation duct (171) is closed, and in the external circulation state, the connecting ventilation duct (171) is open.

3. The air conditioner evaporator according to claim 2, characterized in that, The connecting ventilation duct (171) is provided with a damper (172), which has an open state for opening the connecting ventilation duct (171) and a closed state for closing the connecting ventilation duct (171).

4. The air conditioner evaporator according to claim 2, characterized in that, The housing (1) includes a first plate (a) and a second plate (b) opposite to each other, the internal circulation vent (131) is disposed on the first plate (a), and the external circulation vent (132) is disposed on the second plate (b).

5. The air conditioner evaporator according to claim 4, characterized in that, The housing (1) also includes a third plate (c), which is connected to the second plate (b). The third plate (c) is provided with a socket (c1), and the second plate (b) is provided with a fastener (b1). The fastener (b1) is provided with a slot opposite to the socket (c1). The air conditioner evaporator also includes an external circulation filter (4), which passes through the socket (c1) and is inserted into the slot so that the external circulation filter (4) covers the external circulation air outlet (132).

6. The air conditioner evaporator according to claim 5, characterized in that, It also includes a sealing plate (6), which is detachably disposed on the housing (1) and closes the socket (c1).

7. The air conditioner evaporator according to claim 4, characterized in that, It also includes an internal circulation filter element (5), which is detachably disposed on the first plate (a) and covers the internal circulation air outlet (131).

8. The air conditioner evaporator according to any one of claims 2-6, characterized in that, Along the flow direction of the airflow in the channel, the cooling core (21) is located upstream of the heating core (22), and the included angle between the cooling core (21) and the heating core (22) is α, where α < 180°.

9. The air conditioner evaporator according to any one of claims 1-6, characterized in that, Two air outlets (14) are provided; the housing (1) includes a fourth plate (d) and a fifth plate (e) arranged opposite to each other; one air outlet (14) is provided on the fourth plate (d) and the other air outlet (14) is provided on the fifth plate (e); There are two fans (3), and the two outlets of the two fans (3) are respectively arranged to correspond one-to-one with the two air outlets (14) so ​​that the air of the first cavity (11) is discharged from the two air outlets (14).

10. An engineering vehicle, characterized in that, The device includes a driver's cab (100), an air conditioning evaporator as described in any one of claims 1-9, and a seat, wherein the air conditioning evaporator and the seat are disposed within the driver's cab (100), and the air conditioning evaporator is located behind the seat.

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