Cab air conditioning component assembly and underground construction machine

Abstract

The utility model discloses a kind of cab air conditioning component assembly and underground engineering machinery in the technical field of engineering machinery equipment.The underground engineering machinery includes fuselage, and fuselage is equipped with cab, and the inner top wall of cab is equipped with the cab air conditioning component assembly disclosed by the utility model.The cab air conditioning component assembly includes evaporator assembly and air duct component, and evaporator assembly is located at the side of the inner top wall of cab away from driving position.The air duct component includes multiple air ducts, and the air inlet of multiple air ducts is communicated with evaporator assembly, and air duct is equipped with air outlet.The utility model not only overcomes the problem that environmental factors outside cab affect heat exchange of evaporator assembly, but also makes full use of the space inside cab, without excessively occupying the operating space of driver, to improve the operating experience of driver.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery and equipment technology, specifically to a cab air conditioning component assembly and underground engineering machinery. Background Technology

[0002] Underground construction machinery is a type of mechanical equipment specifically designed for underground engineering projects (such as tunnels, subways, and mines), playing a crucial role in underground space development. Due to the high temperature and humidity working environment underground, air conditioning systems are needed to regulate the temperature and humidity inside the cab of underground construction machinery to improve the operator's experience.

[0003] The placement of the air conditioning assembly within the cab requires consideration of both the external environment and the limited interior space. Conventional evaporator assemblies are installed on the outside of the cab, necessitating ductwork connecting them. However, exposed ductwork is prone to heat exchange with the external environment, leading to energy waste. Some underground construction machinery, in an effort to save energy, places the evaporator assembly under the driver's seat or in the front, back, left, or right areas of the cab. However, this arrangement lacks space for ductwork, hindering temperature regulation and creating an overly cramped interior that restricts driver operation. The current evaporator assembly placement fails to balance the constraints of both the external environment and limited interior space, hindering the full utilization of the evaporator assembly's performance and improving the driver's experience. Utility Model Content

[0004] The purpose of this utility model is to disclose a cab air conditioning component assembly that can reduce the impact of the external environment on the cab air conditioning component assembly, and make full use of the interior space of the cab without excessively encroaching on the driver's operating space.

[0005] To achieve the above objectives, this utility model discloses a cab air conditioning component assembly. A driver's seat is located on one side of the bottom of the cab, and the cab air conditioning component assembly is disposed on the inner top wall of the cab, away from the driver's seat. The cab air conditioning component assembly includes:

[0006] An evaporator assembly is located on the side of the overhead wall of the cab away from the driver's seat;

[0007] The air duct assembly includes multiple air ducts distributed on the ceiling of the driver's cab, the air inlets of the multiple air ducts are all connected to the evaporator assembly, and the air ducts are provided with air outlets.

[0008] As an optional implementation, the driver's seat is located on the left side of the bottom of the cab, the evaporator assembly is located on the right side of the cab's ceiling, and multiple air ducts extend from the right side of the cab's ceiling to the left side of the cab's ceiling. The air ducts include a left front air duct located on the left front side of the cab's ceiling and a right air duct located on the right side of the cab's ceiling. The air inlets include a first air inlet located in the right air duct and a second air inlet located in the left front air duct. Both the first air inlet and the second air inlet are connected to the evaporator assembly.

[0009] As an optional implementation, the cab has a right window on the right side, a left window on the left side, and a front window on the front side; the air outlet includes a plurality of first air outlets located in the right air duct and a plurality of second air outlets located in the left front air duct; the plurality of first air outlets are concentrated at the end of the right air duct near the right window; the plurality of second air outlets are evenly distributed at intervals along the length of the left front air duct.

[0010] As an optional implementation, the left front air duct includes a first section and a second section. One end of the first section is provided with a second air inlet to connect to the evaporator assembly, and the other end of the first section is connected to the second section. The second section is perpendicular to the first section. Both the first section and the second section are located on the top wall of the driver's cab and are respectively close to the front part and the left part. A plurality of second air outlets are evenly distributed along the length direction of the first section and the second section.

[0011] As an optional implementation, the air duct also includes a fresh air duct, which is located on the top wall of the cab and has an intake hose at one end connected to the evaporator assembly, and an external air inlet at the other end connected to the external environment of the cab. The external air inlet is equipped with an external filter.

[0012] As an optional implementation, the evaporator assembly includes a housing, the interior of which is a connected space; along the airflow path, the housing is sequentially provided with an air exchange chamber for air intake, a cold air core for cooling, and a fan for air outlet, the fan outlets air, and the airflow is directed to the air inlets of multiple air ducts.

[0013] As an optional implementation, the air outlet further includes a third air outlet, and the housing is provided with the third air outlet at the position where the fan outlet is located. The third air outlet is connected to the air inlets of multiple air ducts.

[0014] As an optional implementation, the air exchange chamber is provided with an internal air inlet communicating with the interior space of the driver's cab, and the internal air inlet is provided with an internal filter element; the air exchange chamber is provided with an interface communicating with the air intake hose of the fresh air duct, and the air exchange chamber is provided with a freely opening and closing damper corresponding to the interface.

[0015] As an optional implementation, the housing also includes a warm air core for heating, which is located between the ventilation chamber and the fan. In heating mode, the airflow runs along the ventilation chamber, the warm air core and the fan to exit the air.

[0016] This utility model also discloses an underground engineering machinery, including a body, on which the above-mentioned cab air conditioning component assembly and the cab are provided, and the cab air conditioning component assembly is provided on the inner top wall of the cab.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] (1) The cab air conditioning component assembly is located inside the cab, which can reduce the energy waste caused by heat exchange between the external environment of the cab and the cab air conditioning component assembly.

[0019] (2) The evaporator assembly is arranged on one side of the inner top wall of the cab to avoid the space above the driver's seat and to use the space of the inner top wall of the cab to arrange the air duct components, making full use of the space of the inner top wall of the cab, without taking up too much of the driver's operating space, so as to improve the driver's operating experience.

[0020] (3) The air duct assembly can quickly and directionally deliver airflow to improve the temperature regulation capability of the cab air conditioning component assembly for the interior environment of the cab. The air duct assembly is located on the inner top wall of the cab and can quickly deliver airflow to the area where the driver is located, ensuring the comfort of the driver's working environment.

[0021] (4) Multiple air ducts can share the ventilation area, thereby reducing the cross-sectional area of ​​a single air duct. This can improve the efficiency of the air duct assembly in transporting airflow and make full use of the space on the top wall of the cab without taking up too much of the interior space of the cab. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the novel overall structure disclosed in this utility model embodiment;

[0024] Figure 2 This is a top view of the interior of the driver's cab disclosed in an embodiment of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the air duct assembly disclosed in this embodiment of the utility model;

[0026] Figure 4 This is an assembly diagram of the air duct assembly and evaporator assembly disclosed in an embodiment of this utility model;

[0027] Figure 5 This is a cross-sectional structural schematic diagram of the evaporator assembly disclosed in an embodiment of this utility model;

[0028] Figure 6 yes Figure 5 A magnified view of a portion of point A in the middle.

[0029] Explanation of key figure labels:

[0030] 1. Cab; 11. Front window; 12. Right window; 13. Left side; 14. Front side; 15. Right side; 16. Driver's seat;

[0031] 2. Evaporator assembly; 21. Housing; 22. Fan; 23. Cold air core; 24. Air exchange chamber; 241. Interface; 242. Internal air inlet; 243. Air damper; 244. Internal filter; 245. Drive unit; 25. Warm air core; 211. Third air outlet;

[0032] 3. Air duct assembly; 31. Right air duct; 311. First air outlet; 312. First air inlet; 32. Front left air duct; 321. Second air outlet; 322. Second air inlet; 323. First section; 324. Second section; 33. Fresh air duct; 331. Flexible hose; 332. External air inlet; 333. External filter element. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0035] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0036] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0037] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0038] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0039] Please see Figures 1 to 2 This application provides a cab air conditioning component assembly, which is located on the inner top wall of the cab 1, and a driver's seat 16 is provided on one side of the bottom of the cab.

[0040] The cab air conditioning assembly includes an evaporator assembly 2 and an air duct assembly 3. The evaporator assembly 2, as the core temperature control component of the air conditioning system, can heat or cool the airflow. The evaporator assembly 2 is located on the side of the cab 1's ceiling wall away from the driver's seat 16. Due to its relatively large size, its location on one side of the cab 1's ceiling wall avoids encroaching on the driver's operating space, thus improving the driver's operating experience. The cooled airflow is directionally transported through the air duct assembly 3, which enhances the cab air conditioning assembly's ability to regulate ambient temperature. The air duct assembly includes multiple air ducts distributed along the cab's ceiling wall. The air inlets of these ducts are connected to the evaporator assembly, and the ducts are equipped with air outlets. Multiple air ducts can improve the efficiency of airflow delivery by the air duct assembly 3, and the cross-sectional area of ​​the airflow delivered by the air duct assembly 3 can be distributed across multiple air ducts to refine the cross-sectional area of ​​a single air duct, so that the air duct does not occupy too much of the interior space of the cab 1.

[0041] In some embodiments, a driver's seat 16 is located on the left side of the cab 1. A right window 12 is located on the right side 15 of the cab 1, a left window is located on the left side 13, and a front window 11 is located on the front side 14. Multiple air ducts are connected to the evaporator assembly 2 and extend from the right side of the inner ceiling wall of the cab 1 to the left side of the inner ceiling wall of the cab 1, making full use of the space in the inner ceiling wall of the cab 1 to quickly guide the airflow treated by the evaporator assembly 2 to the vicinity of the driver's seat 16, thereby improving the comfort of the driver's working environment.

[0042] See Figures 3 to 4 In some embodiments, the air inlet includes a first air inlet 312 and a second air inlet 322. The air duct includes a left front air duct 32 and a right air duct 31. The right air duct 31 is provided with a first air inlet 312 communicating with the evaporator assembly 2, and the left front air duct 32 is provided with a second air inlet 322 communicating with the evaporator assembly 2. The airflow processed by the evaporator assembly 2 flows into the right air duct 31 and the left front air duct 32 through the first air inlet 312 and the second air inlet 322, respectively. Under the guidance of the right air duct 31 and the left front air duct 32, the airflow quickly diffuses to the right, left and front of the cab 1. The right air duct 31 and the left air duct are provided with air outlets along their length, and the airflow flows out of the air duct assembly 3 from the air outlets and diffuses into the interior space of the cab 1.

[0043] In some embodiments, the air outlet includes a first air outlet 311 and a second air outlet 321. A plurality of first air outlets 311 are provided on the right air duct 31, and these first air outlets 311 are concentrated at the end of the right air duct 31 near the right window 12. A plurality of second air outlets 321 are provided on the left front air duct 32, and these second air outlets 321 are evenly distributed along the length of the left front air duct 32. The right side space of the driver's cab 1 is not part of the driver's activity space, which reduces the airflow to the right side of the driver's cab 1. The proximity of the first air outlets 311 to the right window 12 reduces the temperature difference between the inside and outside of the right window 12, thus reducing fogging or frost formation on the window and ensuring good visibility on the right side of the driver's cab 1.

[0044] In some embodiments, the left front air duct 32 includes a first section 323 and a second section 324. One end of the first section 323 is connected to the right air duct 31, and the other end is connected to the second section 324. The second section 324 is perpendicular to the first section 323. The first section 323 and the second section 324 are located near the front part 14 and the left side part 13, respectively. The airflow flows along the first section 323 and the second section 324 and blows towards the area near the left window and the front window 11, which can keep the temperature difference between the inside and outside of the left window and the front window 11 from being too large, preventing the left window and the front window 11 from fogging or frosting, so as to maintain good left and front visibility for the driver in the driver's seat 16. At the same time, the airflow will not blow directly on the driver, ensuring the driver's comfort in the cab 1.

[0045] See Figure 4 In this embodiment, the air duct also includes a fresh air duct 33. The fresh air duct 33 is located inside the cab 1, and one end of the fresh air duct 33 is provided with an air intake hose 331 that communicates with the evaporator assembly 2. The other end is provided with an external air inlet 332 that communicates with the external environment of the cab 1. The external filter element 333 can filter the airflow entering the fresh air duct 33 from the outside of the cab 1, preventing excessive impurities from entering the interior of the evaporator assembly 2, and preventing the cold air core 23, hot air core, fan 22 and other components inside the housing 21 from malfunctioning due to dust accumulation. When it is necessary to refresh the air in the cab 1, the airflow from outside the cab 1 flows into the fresh air duct 33 from the external air inlet 332, and then flows into the evaporator assembly 2 from the other end of the fresh air duct 33. The airflow processed by the evaporator assembly 2 is then distributed to various areas inside the cab 1 through the air duct assembly 3.

[0046] See Figures 5 to 6The evaporator assembly 2 includes a housing 21, the interior of which is a continuous space. Along the airflow path through the housing 21, the housing 21 contains, in sequence, an air exchange chamber 24 for air intake, a cold air core 23 for cooling, and a fan 22 for air outlet. The fan 22 outlets airflow to the air outlets of multiple air ducts. When the fan 22 at the top of the housing 21 is activated, the airflow in the air exchange chamber 24 at the bottom of the housing flows to the cold air core 23 in the middle of the housing. The cold air core 23 removes heat from the gas through heat exchange, lowering the gas temperature. The cooled airflow, under the action of the fan 22, partially enters the air duct assembly 3 and is transported through the air ducts to various areas of the cab 1, lowering the temperature in other areas of the cab 1. The cold air core 23 generally includes a compressor, aluminum or copper fins, and circulation pipes. The compressor drives the refrigerant to flow within the circulation pipes. As the refrigerant flows through the fins, it exchanges heat with the airflow, causing the airflow temperature to drop.

[0047] In some embodiments, the air outlet further includes a third air outlet 211, which is provided on the top surface of the housing 21 corresponding to the position of the fan 22 and communicates with the interior environment of the cab 1. A portion of the airflow processed by the evaporator assembly 2 is directly discharged into the interior of the cab 1 through the third air outlet 211 to regulate the temperature inside the cab 1. The area on the housing 21 where the fan 22 is located has exhaust vents corresponding to the first air inlet 312 of the right air duct 31 and the second air inlet 322 of the left front air duct 32. The airflow processed by the evaporator assembly 2 flows from the exhaust vents into the first air inlet 312 and the second air inlet 322, and finally flows along the right air duct 31 and the left front air duct 32 to various areas of the cab 1.

[0048] In some embodiments, the housing 21 further includes a warm air core 25, which is provided in the area between the fan 22 and the air exchange chamber 24. The warm air core 25 is located between the fan 22 and the cold air core 23. A fluid medium with a temperature higher than the air temperature is introduced into the interior of the warm air core 25. When airflow passes through the warm air core 25, the temperature of the airflow rises, forming warm air which is then discharged into the interior of the cab 1, thereby raising the temperature inside the cab 1.

[0049] In some embodiments, the air exchange chamber 24 is provided with an internal air inlet 242 communicating with the interior space of the cab 1. The internal air inlet 242 is provided with an internal filter element 244, which can filter the airflow entering the air exchange chamber 24 from the cab 1. The air exchange chamber 24 is provided with an interface 241 communicating with the fresh air duct 33, and the air exchange chamber 24 is provided with a freely opening and closing damper 243 corresponding to the interface 241. When the cab air conditioning component assembly is in the internal circulation mode, the damper 243 is closed, and the airflow inside the cab 1 enters the housing 21 through the internal air inlet 242. After being processed by the evaporator core, the airflow is discharged into the cab 1. When the cab air conditioning assembly is in external circulation mode, the drive component 245, located at the position of the damper 243 in the air exchange chamber 24, is activated. The drive component 245 opens the damper 243, allowing airflow from outside the cab 1 to enter the air exchange chamber 24 along the fresh air duct 33 and mix with the airflow inside the cab 1 before entering the interior of the housing 21. After being processed by the evaporator assembly 2, the airflow is then discharged back into the cab 1. The drive component 245, which drives the opening and closing of the damper 243, can be a common drive component such as an electric cylinder or a motor.

[0050] This utility model also discloses an underground engineering machinery, including a body, on which the above-mentioned cab 1 and cab air conditioning component assembly are provided, and the cab air conditioning component assembly is provided on the inner top wall of the cab 1.

[0051] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A driver's cab air conditioning component assembly, characterized in that, The cab air conditioning assembly is located on the inner top wall of the cab, and the driver's seat is located on one side of the bottom of the cab; the cab air conditioning assembly includes: An evaporator assembly is located on the top wall of the cab and on the side away from the driver's seat; The air duct assembly includes multiple air ducts distributed on the ceiling of the driver's cab, the air inlets of the multiple air ducts are all connected to the evaporator assembly, and the air ducts are provided with air outlets.

2. The cab air conditioning component assembly according to claim 1, characterized in that, The driver's seat is located on the left side of the bottom of the cab. The evaporator assembly is located on the right side of the top wall of the cab. Multiple air ducts extend from the right side of the top wall of the cab to the left side of the top wall of the cab. The air ducts include a left front air duct located on the left front side of the top wall of the cab and a right air duct located on the right side of the top wall of the cab. The air inlet includes a first air inlet located in the right air duct and a second air inlet located in the left front air duct. Both the first air inlet and the second air inlet are connected to the evaporator assembly.

3. The cab air conditioning component assembly according to claim 2, characterized in that, The driver's cab has a right window on the right side, a left window on the left side, and a front window on the front side; the air outlet includes a plurality of first air outlets located in the right air duct and a plurality of second air outlets located in the left front air duct; the plurality of first air outlets are concentrated at the end of the right air duct near the right window; the plurality of second air outlets are evenly distributed along the length of the left front air duct.

4. The cab air conditioning component assembly according to claim 3, characterized in that, The left front air duct includes a first section and a second section. One end of the first section is provided with a second air inlet to connect to the evaporator assembly, and the other end of the first section is connected to the second section. The second section is perpendicular to the first section. Both the first section and the second section are located on the top wall of the driver's cab and are respectively close to the front part and the left part. A plurality of second air outlets are evenly distributed along the length direction of the first section and the second section.

5. The cab air conditioning component assembly according to claim 1, characterized in that, The air duct also includes a fresh air duct, which is located on the top wall of the cab and has an intake hose at one end connected to the evaporator assembly, and an external air inlet at the other end connected to the external environment of the cab. The external air inlet is equipped with an external filter.

6. The cab air conditioning component assembly according to claim 5, characterized in that, The evaporator assembly includes a housing, the interior of which is a connected space; along the airflow path, the housing is sequentially provided with an air exchange chamber for air intake, a cold air core for cooling, and a fan for air outlet, the fan outlets air, and the airflow is directed to the air inlets of multiple air ducts.

7. The cab air conditioning component assembly according to claim 6, characterized in that, The air outlet also includes a third air outlet, which is provided on the housing corresponding to the position where the fan outlet is located, and the third air outlet is connected to the space inside the driver's cab.

8. The cab air conditioning component assembly according to claim 6, characterized in that, The ventilation chamber is provided with an internal air inlet that communicates with the interior space of the driver's cab, and the internal air inlet is provided with an internal filter element; the ventilation chamber is provided with an interface that communicates with the air intake hose of the fresh air duct, and the ventilation chamber is provided with a freely opening and closing damper corresponding to the interface.

9. The cab air conditioning component assembly according to any one of claims 6-8, characterized in that, The housing also includes a warm air core for heating, which is located between the ventilation chamber and the fan. In heating mode, the airflow runs along the ventilation chamber, the warm air core and the fan to produce air.

10. An underground engineering machinery, characterized in that, The aircraft includes a fuselage, on which a cab air conditioning component assembly as described in any one of claims 1-9 is provided, and the cab is provided on the inner top wall of the cab.

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