A driver's cab air conditioner

Abstract

This utility model belongs to the field of air conditioning maintenance technology and discloses a driver's cab air conditioner, including a housing assembly, a connecting assembly, a heater, and a fan, with the fan fixed to a fan plate. During maintenance, the fan can be replaced simply by disassembling the fan plate, improving the convenience of air conditioning maintenance. Furthermore, the heater is detachably connected to the opening frame via a first and second connecting member. The heater can be replaced and maintained by disassembling either the first or second connecting member and the first baffle, further improving the convenience of air conditioning maintenance and reducing maintenance costs. By staggering the first and second connecting members, the heater is placed obliquely within the opening frame, maximizing its size within a limited space. Compared to a horizontally arranged heater, this reduces eddies generated on the windward side and increases the distance between the heater and the fan, further mitigating the risk of combustion.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning maintenance technology, and in particular to a cooling and heating air conditioner for a driver's cab. Background Technology

[0002] A loader is a type of earthmoving machinery widely used in construction projects such as highways, railways, buildings, hydropower, ports, and mines. It is mainly used for loading and unloading bulk materials such as soil, sand, gravel, lime, and coal, and can also perform light digging operations on ores and hard soil. By changing different auxiliary working devices, it can also perform bulldozing, lifting, and loading and unloading operations of other materials such as timber.

[0003] New energy electric loaders operate under harsh conditions, and manufacturers typically equip the driver's cab with air conditioning to improve the driver's riding environment. However, in current technology, due to the limited space in the driver's cab, even though the heater is small, there is still a safety concern about combustion caused by the heater being too close to the fan. Furthermore, the small space in the driver's cab makes air conditioning maintenance inconvenient and results in high maintenance costs.

[0004] Therefore, there is an urgent need to develop a driver's cab air conditioning system to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a driver's cab air conditioner that extends the distance between the heater and the fan in a limited space, avoids the risk of combustion, and improves the convenience of air conditioner maintenance and reduces maintenance costs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A driver's cab air conditioning system includes:

[0008] The housing assembly includes an opening frame, a first baffle, and a fan plate. The first baffle is detachably connected to the opening frame, and the side surface of the fan plate is detachably connected to the inner wall of the opening frame.

[0009] The connecting component includes a first connector and a second connector. The first connector is detachably connected to the inner wall of the opening frame, and the second connector is detachably connected to the inner wall of the opening frame. The orthographic projections of the first connector and the second connector along a first direction do not coincide.

[0010] The heater has two opposite sides that are detachably connected to the first connector and the second connector, respectively.

[0011] The fan is fixedly connected to the fan plate, with the first direction being the width direction of the opening frame.

[0012] Preferably, the first connector has a first groove, the second connector has a second groove, and the bottom of the first groove faces the bottom of the second groove. The opposite sides of the heater abut against the bottom of the first groove and the bottom of the second groove, respectively.

[0013] Preferably, the air conditioning unit for the driver's cab also includes a heat exchanger, the fixed end of which is detachably connected to the first baffle.

[0014] Preferably, the connecting assembly also includes a third connector, which is detachably connected to the inner wall of the opening frame. The third connector is provided with a third groove, and the heat exchanger abuts against the groove wall of the third groove.

[0015] Preferably, there are two third connectors and two third grooves, with the bottoms of the two third grooves facing each other, and the two ends of the heat exchanger abutting against the walls of the two third grooves respectively.

[0016] Preferably, the air conditioner for the driver's cab also includes a filter screen, and the housing assembly also includes a filter screen cover. A first through hole is provided on the first baffle, the filter screen is connected to the hole wall of the first through hole, the filter screen cover is detachably connected to the first baffle, and along the first direction, the orthographic projection of the hole wall of the first through hole coincides with the orthographic projection of the filter screen cover.

[0017] As a preferred embodiment, the air conditioning unit for the driver's cab also includes screws, and the filter cover is connected to the first baffle by screws.

[0018] Preferably, the driver's cab air conditioner also includes an electronic expansion valve, the housing assembly includes a base plate, the opening frame is detachably connected to the base plate, the fixed end of the electronic expansion valve is detachably connected to the base plate, and the electronic expansion valve is used to regulate the refrigerant flow.

[0019] Preferably, the housing assembly further includes a second baffle. Along the first direction, a second through hole is provided on the side of the opening frame opposite to the first baffle. The second baffle is detachably connected to the side of the opening frame opposite to the first baffle, and along the first direction, the orthographic projection of the second baffle coincides with the orthographic projection of the wall of the second through hole.

[0020] Preferably, the air conditioning system for the driver's cab also includes a temperature sensor and a controller. The temperature sensor is electrically connected to the controller, and the controller is signal-connected to the heater. The temperature sensor is used to detect the temperature inside the driver's cab.

[0021] The beneficial effects of this utility model are:

[0022] This utility model provides a driver's cab air conditioner, including a housing assembly, a connecting assembly, a heater, and a fan. The connecting assembly includes a first connector and a second connector. The housing assembly is divided into an opening frame, a first baffle, and a fan plate. The fan is fixed to the fan plate. During maintenance, only the fan plate needs to be removed to replace the fan, improving the convenience of air conditioner maintenance. In addition, the heater is detachably connected to the opening frame by the first and second connectors. The heater can be replaced and maintained by removing either the first or second connector and the first baffle, further improving the convenience of air conditioner maintenance and reducing maintenance costs. By staggering the first and second connectors, the heater is placed obliquely within the opening frame. The size of the heater can be maximized within the limited width space. Compared with a horizontally arranged heater, this reduces eddies generated on the windward side and increases the distance between the heater and the fan, further avoiding the risk of combustion. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the air conditioning system for the driver's cab provided in this embodiment;

[0024] Figure 2 This is a schematic diagram of an explosion of the air conditioner for the driver's cab provided in this embodiment;

[0025] Figure 3 This is a schematic diagram of the first connector structure provided in this embodiment;

[0026] Figure 4 This is a front view of the first connector provided in this embodiment;

[0027] Figure 5 yes Figure 4 A cross-sectional view along the AA direction;

[0028] Figure 6 yes Figure 4 Cross-sectional view along the BB direction.

[0029] In the picture:

[0030] 100. Housing assembly; 110. Opening frame; 111. Second through hole; 120. First baffle; 121. First through hole; 130. Fan plate; 140. Filter cover plate; 150. Base plate; 160. Second baffle; 200. Connecting assembly; 210. First connector; 211. First groove; 220. Second connector; 230. Third connector; 231. Third groove; 300. Heater; 400. Fan; 500. Heat exchanger; 600. Filter; 700. Electronic expansion valve; 800. Controller. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] This embodiment provides a driver's cab air conditioner that extends the distance between the heater and the fan in a limited space, avoids the risk of fire, and improves the convenience of air conditioner maintenance and reduces maintenance costs.

[0036] Specifically, such as Figures 1 to 2As shown, a driver's cab air conditioner includes a housing assembly 100, a connecting assembly 200, a heater 300, and a fan 400. The housing assembly 100 includes an opening frame 110, a first baffle 120, and a fan plate 130. The first baffle 120 is detachably connected to the opening frame 110, and the side surface of the fan plate 130 is detachably connected to the inner wall of the opening frame 110. The connecting assembly 200 includes a first connector 210 and a second connector 220. The first connector 210 is detachably connected to the inner wall of the opening frame 110, and the second connector 220 is detachably connected to the inner wall of the opening frame 110. The first connector 210 and the second connector 220 are connected along a first direction (…). Figure 1 The orthographic projections in the X direction do not coincide. The heater 300 is detachably connected to the first connector 210 and the second connector 220 on opposite sides. The fixed end of the fan 400 is fixedly connected to the fan plate 130, with the first direction being the width direction of the opening frame 110.

[0037] The housing assembly 100 is disassembled into an opening frame 110, a first baffle 120, and a fan plate 130. The fan 400 is fixed on the fan plate 130. During maintenance, only the fan plate 130 needs to be removed to replace the fan 400, improving the convenience of air conditioner maintenance. In addition, the heater 300 is detachably connected to the opening frame 110 through the first connector 210 and the second connector 220. The heater 300 can be replaced and maintained by removing either the first connector 210 or the second connector 220 and the first baffle 120, further improving the convenience of air conditioner maintenance and reducing maintenance costs. By staggering the first connector 210 and the second connector 220, the heater 300 is placed obliquely within the opening frame 110. The size of the heater 300 can be maximized within the limited width space. Compared with a horizontal arrangement, this reduces the eddies generated on the windward side of the heater 300 and increases the distance between the heater 300 and the fan 400, further avoiding the risk of combustion. It should be noted that this embodiment uses a brushless evaporator fan 400 to achieve stepless adjustment of the air volume of the fan 400, thereby improving the driver's comfort.

[0038] It should be noted that, in this embodiment, the two sides of the first connecting member 210 are detachably connected to the inner walls of the opening frame 110 on opposite sides; in other embodiments, the middle part of the first connecting member 210 is detachably connected to the inner wall of the opening frame 110. In this embodiment, the middle part of the second connecting member 220 is detachably connected to the inner wall of the opening frame 110; in other embodiments, the two sides of the second connecting member 220 are respectively detachably connected to the inner walls of the opening frame 110 on opposite sides. In this embodiment, the first connecting member 210 and the opening frame 110 are connected by bolts; in other embodiments, the first connecting member 210 and the opening frame 110 are connected by a clamping structure. In this embodiment, the second connecting member 220 and the opening frame 110 are connected by bolts; in other embodiments, the second connecting member 220 and the opening frame 110 are connected by a clamping structure.

[0039] Furthermore, such as Figures 3 to 5 As shown, the first connector 210 has a first groove 211, and the second connector 220 has a second groove. The bottom of the first groove 211 faces the bottom of the second groove. The opposite sides of the heater 300 abut against the bottoms of the first groove 211 and the second groove, respectively. Placing the heater 300 in the first groove 211 and the second groove makes the connection between the heater 300 and the opening frame 110 more convenient. Furthermore, the tight grip of the groove walls of the first groove 211 and the second groove on the outer surface of the heater 300 improves the stability of the connection between the heater 300 and the opening frame 110. In other embodiments, a slot can be provided on the first connector 210, and a buckle can be provided on the outer surface of the heater 300, with the buckle and slot engaging. In other embodiments, a slot can be provided on the second connector 220, and a buckle can be provided on the outer surface of the heater 300, with the buckle and slot engaging.

[0040] Optionally, such as Figures 1 to 2 As shown, the air conditioning unit for the driver's cab also includes a heat exchanger 500. The fixed end of the heat exchanger 500 is detachably connected to the first baffle 120. The heat exchanger 500 can be replaced and repaired by removing the first baffle 120, thereby improving the maintenance convenience of the heat exchanger 500.

[0041] Furthermore, the connecting assembly 200 also includes a third connector 230, which is detachably connected to the inner wall of the opening frame 110. The third connector 230 is provided with a third groove 231, and the heat exchanger 500 abuts against the groove wall of the third groove 231, thereby realizing the detachable connection between the heat exchanger 500 and the opening frame 110 and improving the stability when the heat exchanger 500 is connected to the opening frame 110.

[0042] Furthermore, the number of third connectors 230 and the number of third grooves 231 are both at least two and correspond one-to-one. The bottoms of the at least two third grooves 231 are arranged opposite each other, and the side surfaces of the heat exchanger 500 abut against the groove walls of the at least two third grooves 231 respectively. By having at least two third grooves 231 abut against the outer surface of the heat exchanger 500 respectively, the stability of the heat exchanger 500 when connected to the opening is further improved. In other embodiments, a slot may be provided on the third connector 230, and a buckle may be provided on the outer surface of the heat exchanger 500, with the buckle and slot engaging. In this embodiment, the number of third connectors 230 and third grooves 231 are both two. In other embodiments, the number of third connectors 230 and third grooves 231 may be three, four, or five, etc.

[0043] Optionally, the driver's cab air conditioner also includes a filter 600, and the housing assembly 100 includes a filter cover 140. A first through hole 121 is provided on the first baffle 120. The filter 600 is connected to the wall of the first through hole 121. The filter cover 140 is detachably connected to the first baffle 120, and along a first direction, the orthographic projection of the wall of the first through hole 121 coincides with the orthographic projection of the filter cover 140. This achieves filtration of the air entering the opening frame 110, improving the driver's comfort when using the air conditioner. The filter cover 140 connects the filter 600 to the first baffle 120, preventing the filter 600 from falling off due to a loose connection. The filter 600 can be replaced by removing the filter cover 140, improving the convenience of filter 600 maintenance. It should be noted that the filter 600 is located at the air inlet of the air conditioner, which is a common technique used by those skilled in the art and will not be elaborated upon here.

[0044] Furthermore, the driver's cab air conditioner also includes screws. The filter cover 140 and the first baffle 120 are connected by screws, which further improves the stability of the connection between the filter cover 140 and the first baffle 120. Moreover, the filter 600 can be replaced simply by removing the screws on the filter cover 140, further improving the convenience of filter 600 maintenance. In other embodiments, the filter cover 140 and the first baffle 120 can be connected magnetically.

[0045] Optionally, the driver's cab air conditioner also includes an electronic expansion valve 700, and the housing assembly 100 includes a base plate 150. The opening frame 110 is detachably connected to the base plate 150, and the fixed end of the electronic expansion valve 700 is detachably connected to the base plate 150. The electronic expansion valve 700 is used to regulate the refrigerant flow or control the heat exchange. The adjustment of the electronic expansion valve 700 enables regulation of the refrigerant flow in cooling mode and control of the heat exchange in heating mode. The detachable connection between the electronic expansion valve 700 and the base plate 150 improves the ease of maintenance of the electronic expansion valve 700. In this embodiment, the electronic expansion valve 700 is connected to the base plate 150 by bolts; in other embodiments, the electronic expansion valve 700 is magnetically fixed to the base plate 150. It should be noted that this embodiment uses a bidirectional flow switch-controlled electronic expansion valve 700, whose bidirectional flow capability adapts to both cooling and heating modes, ensuring that even when the refrigerant flows in the opposite direction, the refrigerant flow can still be stably controlled by adjusting the opening, thereby accurately maintaining the heat exchange balance in different modes.

[0046] Optionally, the housing assembly 100 further includes a second baffle 160. Along the first direction, a second through hole 111 is formed on the side of the opening frame 110 opposite to the first baffle 120. The second baffle 160 is detachably connected to the side of the opening frame 110 opposite to the first baffle 120. Along the first direction, the orthographic projection of the second baffle 160 coincides with the orthographic projection of the wall of the second through hole 111, thus achieving closure within the opening frame 110. By disassembling the second baffle 160, assembly operations such as connecting internal connectors and applying waterproof adhesive to the bottom of the base plate 150 can be performed through the second through hole 111, improving the ease of air conditioner assembly.

[0047] Optionally, the opening frame 110, the first baffle 120, and the fan plate 130 are all made of high-strength materials to improve their strength, vibration resistance, and extend the service life of the air conditioner. In this embodiment, the opening frame 110, the first baffle 120, and the fan plate 130 are all made of stainless steel. In other embodiments, the opening frame 110, the first baffle 120, and the fan plate 130 can be made of alloy steel or other materials.

[0048] Furthermore, protective layers are provided on the surfaces of the opening frame 110, the first baffle 120, and the fan plate 130 to prevent corrosion during use and further improve the strength of the opening frame 110, the first baffle 120, and the fan plate 130. In this embodiment, the protective layer is a galvanized layer; in other embodiments, the protective layer may also be a plastic film or a rubber layer, etc.

[0049] Optionally, the driver's cab air conditioning system also includes a temperature sensor and a controller 800. The temperature sensor is electrically connected to the controller 800, and the controller 800 is signal-connected to the heater 300. The temperature sensor is used to detect the temperature inside the driver's cab. Based on the feedback from the temperature sensor regarding the driver's cab temperature, the controller 800 automatically adjusts the operating state of the heater 300, thereby achieving temperature regulation. In this embodiment, a controller 800 with a low Curie temperature is selected. A controller 800 with a low Curie temperature can automatically trigger a state change when the temperature reaches a threshold, achieving precise temperature control and overheat protection without the need for additional sensors, simplifying the structure and improving reliability.

[0050] like Figure 1 As shown, the airflow direction of the air conditioner for the driver's cab provided in this embodiment is as follows:

[0051] The air in the driver's cab enters the air conditioning unit through the air inlet, is filtered by the filter 600, passes through the heat exchanger 500, and undergoes heat transfer and exchange through the phase change of the refrigerant (evaporation absorbs heat, condensation releases heat) under the action of the heat exchanger 500. The air then flows through the heater 300, where electrical energy is converted into heat energy to help increase the outlet air temperature. Finally, the air is regulated by the fan 400 to different wind speeds and discharged into the driver's cab through the air outlet.

[0052] 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 various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments 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. A driver's cab air conditioner, characterized in that, include: A housing assembly (100) includes an opening frame (110), a first baffle (120), and a fan plate (130). The first baffle (120) is detachably connected to the opening frame (110), and the side surface of the fan plate (130) is detachably connected to the inner wall of the opening frame (110). A connecting component (200) includes a first connector (210) and a second connector (220). The first connector (210) is detachably connected to the inner wall of the opening frame (110), and the second connector (220) is detachably connected to the inner wall of the opening frame (110). The orthographic projections of the first connector (210) and the second connector (220) along a first direction do not coincide. A heater (300), wherein the opposite sides of the heater (300) are detachably connected to the first connector (210) and the second connector (220), respectively; A fan (400) is fixedly connected to the fan plate (130) at its fixed end, and the first direction is the width direction of the opening frame (110).

2. The air conditioner for a cab according to claim 1, characterized by The first connector (210) is provided with a first groove (211), the second connector (220) is provided with a second groove, and the bottom of the first groove (211) faces the bottom of the second groove. The opposite sides of the heater (300) abut against the bottom of the first groove (211) and the bottom of the second groove, respectively.

3. The air conditioner for a cab according to claim 1, characterized by The air conditioning unit for the driver's cab also includes a heat exchanger (500), the fixed end of which is detachably connected to the first baffle (120).

4. The air conditioner for a cab according to claim 3, characterized by The connecting assembly (200) further includes a third connector (230), which is detachably connected to the inner wall of the opening frame (110). The third connector (230) is provided with a third groove (231), and the heat exchanger (500) abuts against the groove wall of the third groove (231).

5. The air conditioner for a cab according to claim 4, characterized by The number of the third connector (230) and the number of the third groove (231) are both two. The bottoms of the two third grooves (231) are arranged facing each other, and the two ends of the heat exchanger (500) abut against the groove walls of the two third grooves (231) respectively.

6. The air conditioner for a cab according to claim 1, characterized by The air conditioner for the driver's cab also includes a filter (600), and the housing assembly (100) also includes a filter cover (140). A first through hole (121) is provided on the first baffle (120). The filter (600) is connected to the hole wall of the first through hole (121). The filter cover (140) is detachably connected to the first baffle (120), and along the first direction, the orthographic projection of the hole wall of the first through hole (121) coincides with the orthographic projection of the filter cover (140).

7. The air conditioner for a cab according to claim 6, characterized by The air conditioner for the driver's cab also includes screws, and the filter cover (140) is connected to the first baffle (120) by the screws.

8. The air conditioner for a cab according to claim 1, characterized by The driver's cab air conditioner also includes an electronic expansion valve (700), the housing assembly (100) also includes a base plate (150), the opening frame (110) is detachably connected to the base plate (150), the fixed end of the electronic expansion valve (700) is detachably connected to the base plate (150), and the electronic expansion valve (700) is used to regulate the refrigerant flow.

9. The air conditioner for a cab according to claim 8, characterized by The housing assembly (100) further includes a second baffle (160). Along the first direction, the opening frame (110) has a second through hole (111) on the side opposite to the first baffle (120). The second baffle (160) is detachably connected to the side of the opening frame (110) opposite to the first baffle (120). Along the first direction, the orthographic projection of the second baffle (160) coincides with the orthographic projection of the wall of the second through hole (111).

10. The air conditioner for a cab according to any one of claims 1 to 9, characterized by The air conditioner for the driver's cab also includes a temperature sensor and a controller (800). The temperature sensor is electrically connected to the controller (800), and the controller (800) is signal-connected to the heater (300). The temperature sensor is used to detect the temperature inside the driver's cab.

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