Overhead air conditioner and vehicle

Abstract

The utility model discloses an overhead type air conditioner and a vehicle, and belongs to the technical field of air conditioners, the overhead type air conditioner comprises a chassis, an air duct assembly, a support assembly, a refrigerant circulation loop and a fixing assembly, the refrigerant circulation loop comprises a compressor, a first heat exchanger, a throttling component and a second heat exchanger which are sequentially connected through pipelines, the compressor, the first heat exchanger and the second heat exchanger are fixedly connected with the chassis, the compressor and the first heat exchanger are located outside the air duct assembly, the second heat exchanger is arranged in the air duct assembly, and at least one of an exhaust pipe and an air return pipe of the compressor is fixedly arranged on the support assembly through the fixing assembly. And at least part of the pipeline between the first heat exchanger and the second heat exchanger is fixed on the chassis, so that the pipeline of the refrigerant circulation loop is effectively fixed, the vibration reduction effect on the pipeline is achieved, and the risk that the pipeline interferes and is abraded due to vehicle operation vibration and even fractures to cause the failure of the air conditioner is reduced. And the operation reliability of the overhead air conditioner is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner technical field especially is a kind of top-mounted air conditioner and vehicle. BACKGROUND

[0002] The top-mounted air conditioner is installed on the top of vehicle, in addition to considering the vibration of compressor and fan, the vibration caused by road bumping, acceleration and deceleration in driving process also needs to be considered, the vibration can cause the large swing of pipeline, and vibration amplitude is higher than the vibration intensity of machine caused by compressor and fan. At present, top-mounted air conditioner lacks effective pipeline fixing structure, and excessive pre-stress of pipeline can easily lead to large swing of pipeline or even breakage, causing air conditioner failure. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art. Therefore, the utility model provides a kind of top-mounted air conditioner, can effectively fix pipeline, reduce the pre-stress of pipeline, to reduce the risk of breakage of pipeline.

[0004] The utility model further provides vehicle using the above-mentioned top-mounted air conditioner.

[0005] The top-mounted air conditioner according to the first aspect embodiment of the utility model includes chassis, air duct assembly, support assembly, refrigerant circulation loop and fixing assembly, the air duct assembly is fixedly arranged on the chassis, and the support assembly is fixedly arranged on the chassis;The refrigerant circulation loop includes compressor, first heat exchanger, throttling component and second heat exchanger connected by pipeline in sequence, and the compressor, the first heat exchanger and the second heat exchanger are fixedly arranged on the chassis, and the compressor and the first heat exchanger are located outside the air duct assembly, the first heat exchanger is connected with the support assembly, the second heat exchanger is arranged in the air duct assembly, and the pipeline includes exhaust pipe communicated with the exhaust port of the compressor and return air pipe communicated with the return air port of the compressor;The fixing assembly is used to fixedly arrange at least one of the exhaust pipe and the return air pipe on the support assembly, and fixedly arrange at least part of pipeline between the first heat exchanger and the second heat exchanger on the chassis.

[0006] The top-mounted air conditioner according to the utility model embodiment has at least the following beneficial effects:

[0007] The top-mounted air conditioner is mounted on the outer side of the top of a vehicle, a chassis is used for connecting with the top of the vehicle, a refrigerant circulation loop is mounted on the chassis, a compressor, a first heat exchanger and a second heat exchanger are fixedly connected with the chassis respectively, the compressor and the first heat exchanger are located outside an air duct assembly and the first heat exchanger is supported by a support assembly, the second heat exchanger is arranged in the air duct assembly, the first heat exchanger is used for heat exchange with air in the external environment of the vehicle, and the second heat exchanger is used for heat exchange with air in the internal environment of the vehicle; at least one of the discharge pipe and the return pipe of the compressor is fixedly arranged on the support assembly through a fixing assembly, and part or all of the pipelines between the first heat exchanger and the second heat exchanger are fixedly arranged on the chassis, so that the pipelines of the refrigerant circulation loop are effectively fixed, the pipelines are damped, the prestress of the pipelines is reduced, the pipelines are prevented from being abraded and even broken due to mutual interference caused by vibration of the vehicle, and the operation reliability of the top-mounted air conditioner is improved.

[0008] According to some embodiments of the present application, the support assembly is connected to one side of the first heat exchanger, the fixing assembly comprises a first connecting piece, a second connecting piece and a first pipe clamp, the first connecting piece is connected with the support assembly, the discharge pipe is fixedly connected with the first connecting piece through the first pipe clamp, and the discharge pipe is connected with the return pipe through the second connecting piece.

[0009] According to some embodiments of the present application, the refrigerant circulation loop further comprises a reversing valve, a first port of the reversing valve is connected with the discharge pipe, a second port of the reversing valve is connected with the first heat exchanger through a first connecting pipe, a third port of the reversing valve is connected with the second heat exchanger through a third connecting pipe, and a fourth port of the reversing valve is connected with the return pipe, and the discharge pipe, the first connecting pipe, the third connecting pipe and the return pipe are respectively welded with the reversing valve.

[0010] According to some embodiments of the present application, the discharge pipe comprises a plurality of first pipe segments formed by bending, and at least one of the first pipe segments is arranged along a vertical direction and connected with the first pipe clamp.

[0011] According to some embodiments of the present application, the second connecting piece is an elastic block, both ends of the elastic block are respectively provided with first clamping grooves, and the discharge pipe and the return pipe are respectively clamped in the first clamping grooves at both ends of the elastic block.

[0012] According to some embodiments of the present application, the support assembly comprises a support plate arranged along a circumferential direction of the first heat exchanger, the first connecting piece is a sheet metal piece, one end of the sheet metal piece is provided with a lug connected with the support plate, and the first pipe clamp is fixedly connected with the sheet metal piece through a fastener.

[0013] According to some embodiments of the present application, the fixing assembly comprises a second pipe clamp, the pipeline between the first heat exchanger and the throttling component comprises a plurality of second pipe sections, at least one of the second pipe sections is arranged along a horizontal direction and is fixedly connected with the bottom plate through the second pipe clamp.

[0014] According to some embodiments of the present application, the fixing assembly comprises a third pipe clamp, the pipeline between the second heat exchanger and the compressor comprises a plurality of third pipe sections, at least one of the third pipe sections is arranged along a horizontal direction and is fixedly connected with the bottom plate through the third pipe clamp.

[0015] According to some embodiments of the present application, the fixing assembly further comprises a tightening belt, the throttling component is a capillary tube, the capillary tube is connected between the first heat exchanger and the second heat exchanger, and the capillary tube is connected with the bottom plate or the third pipe section through the tightening belt.

[0016] According to some embodiments of the present application, the fixing assembly comprises a pipe clamp for fixing the pipeline of the refrigerant circulation loop, the pipe clamp comprises a body, the body is bent to form a limiting groove, two ends of the body are respectively provided with connecting portions, an opening in communication with the limiting groove is defined between the two connecting portions, the opening is configured to have an adjustable opening degree, and an inner peripheral wall of the limiting groove is provided with a protective pad.

[0017] According to some embodiments of the present application, the fixing assembly comprises a damping block, the damping block is provided with a second clamping groove, and part of the pipe body of the return air pipe is accommodated in the second clamping groove.

[0018] The vehicle according to the second aspect embodiment of the present application comprises the roof-mounted air conditioner according to the first aspect embodiment, and the roof-mounted air conditioner is mounted on the outer side of the roof of the vehicle.

[0019] The vehicle according to the embodiments of the present application has at least the following beneficial effects:

[0020] The roof-mounted air conditioner is mounted on the outer side of the roof of the vehicle, at least one of the discharge pipe and the return air pipe of the compressor is fixedly arranged on the first heat exchanger by the fixing assembly, part of the pipeline or all of the pipeline between the first heat exchanger and the second heat exchanger is fixedly arranged on the bottom plate, the pipeline of the refrigerant circulation loop is effectively fixed, the pipeline is damped, the prestress of the pipeline is reduced, the pipeline is prevented from being interfered and worn due to vibration of the vehicle, and even the risk of fracture of the pipeline is reduced, the risk of failure of the air conditioner is reduced, the roof-mounted air conditioner is more reliable, and the stability of air cooling or heating in the vehicle is ensured.

[0021] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is an exploded structural schematic view of the top-mounted air conditioner of an embodiment of the present application;

[0023] Figure 2 is an internal assembly structural schematic view of the top-mounted air conditioner of an embodiment of the present application;

[0024] Figure 3 is Figure 2 an enlarged structural schematic view of position A in FIG. 1;

[0025] Figure 4 is a top view schematic view of the internal structure of the top-mounted air conditioner of an embodiment of the present application;

[0026] Figure 5 is Figure 4 an enlarged structural schematic view of position B in FIG. 1;

[0027] Figure 6 is Figure 4 a sectional structural schematic view of direction C-C in FIG. 1;

[0028] Figure 7 is a structural schematic view of the pipe clamp in an embodiment of the present application;

[0029] Figure 8 is an internal assembly structural schematic view of the top-mounted air conditioner of another embodiment of the present application;

[0030] Figure 9 is Figure 8 an enlarged structural schematic view of position D in FIG. 2;

[0031] Figure 10 is a top view schematic view of the internal structure of the top-mounted air conditioner of another embodiment of the present application;

[0032] Figure 11 is Figure 10 a sectional structural schematic view of direction E-E in FIG. 2;

[0033] Figure 12 is a force schematic view of the top-mounted air conditioner of an embodiment of the present application mounted on the roof of a vehicle.

[0034] REFERENCE NUMERALS:

[0035] top-mounted air conditioner 10;

[0036] vehicle 20;

[0037] Chassis 100; upper cover 110; first boss 120; second boss 130;

[0038] First heat exchanger 200; first connecting pipe 210; second connecting pipe 220; second pipe section 221;

[0039] Second heat exchanger 300; third connecting pipe 310; third pipe section 311;

[0040] Compressor 400; gas-liquid separator 401; exhaust pipe 410; first pipe section 411; gas return pipe 420;

[0041] Throttling component 500; capillary tube 510;

[0042] Fixing assembly 600; first pipe clamp 610; first connecting piece 620; lug 621; second connecting piece 630; damping block 640; second pipe clamp 650; third pipe clamp 660; pipe clamp 670; body 671; protective pad 672; limiting groove 673; connecting part 674; through hole 6741; opening 675;

[0043] Reversing valve 700;

[0044] Support assembly 800; support plate 810; motor support 820;

[0045] Fan 900; motor 910; inner wind wheel 920; outer wind wheel 930;

[0046] Air duct assembly 1000;

[0047] Electronic control assembly 1100. DETAILED DESCRIPTION

[0048] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0049] In the description of the present application, it should be understood that the terms "front", "back", "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation of the present application.

[0050] In the description of the utility model, if it is described as "first", "second" and the like, it is only for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0051] In the description of the utility model, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements or interaction relationship of two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0052] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, obviously, the following described embodiments are part of the embodiments of the utility model, not all the embodiments.

[0053] Referring to Figure 1 The utility model discloses an embodiment provides top -mounted air conditioner 10, including bottom disc 100, be provided with upper cover 110 on bottom disc 100, upper cover 110 is connected with bottom disc 100 to define cavity, install first heat exchanger 200, second heat exchanger 300, air duct assembly 1000, support assembly 800, fan 900, electric control assembly 1100 and compressor 400 in the cavity, first heat exchanger 200, second heat exchanger 300, air duct assembly 1000, support assembly 800 and compressor 400 are connected on bottom disc 100 respectively, and electric control assembly 1100 is connected between air duct assembly 1000 and support assembly 800.

[0054] Among them, air duct is defined in air duct assembly 1000, second heat exchanger 300 is installed in the air duct, first heat exchanger 200, support assembly 800 and compressor 400 are located air duct assembly 1000 outside, and fan 900 includes inner wind wheel 920, outer wind wheel 930 and motor 910, motor 910 is double shaft motor, inner wind wheel 920 is located in the air duct, motor 910 is installed on support assembly 800, one end of motor 910 passes through air duct assembly 1000 and is connected with inner wind wheel 920, and the other end of the shaft is connected with outer wind wheel 930, and inner wind wheel 920 and outer wind wheel 930 can be driven to rotate by motor 910. First heat exchanger 200 is used for heat exchange with the air of the external environment of vehicle 20, and second heat exchanger 300 is used for heat exchange with the air of the internal environment of vehicle 20.

[0055] It can be understood that the top-mounted air conditioner 10 is mounted on the top of the vehicle 20, the bottom of the chassis 100 is provided with an air inlet and an air outlet, the chassis 100 is connected to the outside of the top of the vehicle 20, and the top of the vehicle 20 is provided with a mounting port. The air inlet and the air outlet are respectively communicated with the indoor environment of the vehicle 20 through the mounting port. A panel is installed inside the vehicle 20 and covers the mounting port, that is, the panel is located in the indoor environment of the vehicle 20, and the panel is provided with an air supply port and an air return port, wherein the air supply port is communicated with the air outlet, and the air return port is communicated with the air inlet. When the top-mounted air conditioner 10 operates, indoor air flows into the air duct through the air return port in turn, and the air flow is blown out from the air supply port of the panel after heat exchange treatment, thereby realizing refrigeration or heating for the indoor environment of the vehicle 20.

[0056] Referring to Figure 2 In some embodiments, the air duct assembly 1000 and the bracket assembly 800 are arranged in sequence from front to back along the front-rear direction of the top-mounted air conditioner 10, the compressor 400 is installed on one side of the chassis 100 and located between the air duct assembly 1000 and the bracket assembly 800, and the first heat exchanger 200 is located on the side of the bracket assembly 800 away from the compressor 400. The first heat exchanger 200, the second heat exchanger 300, the bracket assembly 800 and the compressor 400 are respectively connected with the chassis 100, for example, can be fixed by bolts, welding and the like. The installation structure of the above-mentioned components is stable and reliable, the first heat exchanger 200 is further supported by the bracket assembly 800, and the second heat exchanger 300 is limited by the air duct assembly 1000, so that the first heat exchanger 200 and the second heat exchanger 300 have high anti-vibration capability.

[0057] It can be understood that the compressor 400, the first heat exchanger 200, the throttling component 500 and the second heat exchanger 300 are connected in sequence through pipelines to form a refrigerant circulation loop, the pipelines are used for refrigerant flow, and the refrigerant circulation loop can drive the refrigerant to circulate continuously, thereby realizing refrigeration or refrigeration effect. According to actual use requirements, the top-mounted air conditioner 10 can adopt a variable frequency single cooling system or a variable frequency cooling and heating system, and the variable frequency single cooling system and the variable frequency cooling and heating system correspond to two structural forms of refrigerant circulation loops respectively. The refrigerant circulation loops of the variable frequency single cooling system and the variable frequency cooling and heating system will be described in detail below.

[0058] Figure 2 、 Figure 4 and Figure 6The top-mounted air conditioner 10 of the illustrated embodiment adopts a variable frequency single cold system, that is, only has refrigeration function. Specifically, the first heat exchanger 200 is a condenser, the second heat exchanger 300 is an evaporator, the exhaust port of the compressor 400 is provided with an exhaust pipe 410, and the return air port of the compressor 400 is provided with a return air pipe 420, wherein the compressor 400 is provided with a gas-liquid separator 401, and the return air pipe 420 is connected with the gas-liquid separator 401. The compressor 400 is connected with the first heat exchanger 200 through the exhaust pipe 410, the pipeline between the first heat exchanger 200 and the throttling component 500 is a second connecting pipe 220, the pipeline between the throttling component 500 and the second heat exchanger 300 is a capillary tube 510, the second heat exchanger 300 is connected with the return air pipe 420 of the compressor 400 through a third connecting pipe 310, and the pipeline of the refrigerant circulation loop includes the exhaust pipe 410, the return air pipe 420, the second connecting pipe 220, the third connecting pipe 310 and the capillary tube 510.

[0059] In the embodiment of the utility model, the pipeline of refrigerant circulation loop is fixed by fixed assembly 600, fixed assembly 600 is used to fix at least one of exhaust pipe 410 and return air pipe 420 of compressor 400 on bracket assembly 800, that is to say, exhaust pipe 410 or return air pipe 420 can be fixed on bracket assembly 800 by fixed assembly 600, or exhaust pipe 410 and return air pipe 420 can be fixed on bracket assembly 800 simultaneously. Since bracket assembly 800 is fixedly connected with bottom plate 100, it has high structural strength, fixing exhaust pipe 410 and / or return air pipe 420 on bracket assembly 800 can ensure that exhaust pipe 410 and return air pipe 420 are supported more stably and reliably.

[0060] It can be understood that since exhaust pipe 410 and return air pipe 420 are both connected with compressor 400, when one of exhaust pipe 410 and return air pipe 420 is fixedly connected with bracket assembly 800 by fixed assembly 600, it can play a fixing role on compressor 400 and its pipeline, also has a damping effect, effectively reduces the mutual interference and wear of exhaust pipe 410 and return air pipe 420 due to the vibration of vehicle 20, and reduces the prestress of exhaust pipe 410 and return air pipe 420. Figure 2 In the illustrated embodiment, exhaust pipe 410 is fixedly connected with bracket assembly 800, and fixed assembly 600 can be a pipe clamp 670, a buckle, a fastening belt or the like, which is used to fixedly connect exhaust pipe 410 with bracket assembly 800, for example, the pipe body of exhaust pipe 410 is clamped on bracket assembly 800 by a buckle, so as to fix exhaust pipe 410.

[0061] Referring to Figure 1It is to be noted that, as shown, in some embodiments, the bracket assembly 800 comprises a support plate 810 and a motor bracket 820, the support plate 810 is connected to one side of the first heat exchanger 200, the support plate 810 is arranged along the circumference of the first heat exchanger 200 and has a frame structure as a whole, the first heat exchanger 200 is supported by the support plate 810, the motor bracket 820 is connected to the support plate 810, the motor bracket 820 is used to install the motor 910, and the exhaust pipe 410 is connected to the support plate 810 through the fixing assembly 600, so that the exhaust pipe 410 is fixed on the support plate 810.

[0062] Of course, in some embodiments, the exhaust pipe 410 and the return pipe 420 can also be fixed on the bracket assembly 800 at the same time, which has better damping and fixing effect and effectively avoids the interference between the exhaust pipe 410 and the return pipe 420 to cause wear.

[0063] In addition, the fixing assembly 600 is also used to fix at least part of the pipeline between the exhaust pipe 410 and the return pipe 420 on the chassis 100. It can be understood that in the refrigerant circulation loop, the pipeline between the exhaust pipe 410 and the return pipe 420 also includes the second connecting pipe 220, the third connecting pipe 310 and the capillary tube 510, that is, at least one of the second connecting pipe 220, the third connecting pipe 310 and the capillary tube 510 can be fixed on the chassis 100 through the fixing assembly 600, for example, the second connecting pipe 220, the third connecting pipe 310 or the capillary tube 510 is fixed on the chassis 100 through buckle or clamping groove structure. Of course, the second connecting pipe 220, the third connecting pipe 310 and the capillary tube 510 can also be fixed on the chassis 100.

[0064] It can be understood that in the case of fixing one or two of the second connecting pipe 220, the third connecting pipe 310 and the capillary tube 510 on the chassis 100, part of the pipeline is fixed, which can effectively reduce the mutual interference and wear of the pipeline due to the vibration of the vehicle 20. Of course, when the second connecting pipe 220, the third connecting pipe 310 and the capillary tube 510 are all fixed on the chassis 100, the fixing and damping effect of the pipeline is better, and the pre-stress of the pipeline is effectively reduced.

[0065] In some embodiments, when the exhaust pipe 410, the return pipe 420, the second connecting pipe 220, the third connecting pipe 310 and the capillary tube 510 are all fixed by the fixing assembly 600, the pipeline has a more effective damping and fixing effect, and the pre-stress is effectively reduced, which avoids the mutual interference and wear of the pipeline due to the vibration of the vehicle 20, reduces the risk of system failure caused by the rupture of the pipeline, and is also beneficial to alleviate the resonance, reduce the operating noise and improve the operating reliability of the top-mounted air conditioner 10.

[0066] Referring to Figure 2 andFigure 3 As shown, the bracket assembly 800 is connected to the first heat exchanger 200 on the side close to the compressor 400, and the compressor 400 is located on the right side of the chassis 100. The fixing assembly 600 includes a first connecting piece 620 and a first pipe clamp 610, the first connecting piece 620 is connected to the right side of the bracket assembly 800, specifically, the first connecting piece 620 is fixedly connected with the support plate 810, the first pipe clamp 610 is fixedly connected with the first connecting piece 620, and the exhaust pipe 410 is connected with the first pipe clamp 610. The first connecting piece 620 can be understood as a pipeline bracket, and the exhaust pipe 410 is fixedly connected with the first connecting piece 620 through the first pipe clamp 610, so that the exhaust pipe 410 can be fixed on the support plate 810, thereby effectively fixing and damping the exhaust pipe 410 and greatly reducing the vibration amplitude of the exhaust pipe 410 during driving of the vehicle 20.

[0067] Referring to Figure 3 As shown, it can be understood that the first connecting piece 620 is a sheet metal part, which has high strength and can provide sufficient support strength for the exhaust pipe 410. In the embodiment, the sheet metal part is formed by bending, and can be L-shaped or U-shaped, thereby further improving the structural strength of the sheet metal part. One end of the sheet metal part is provided with a lug 621, the lug 621 is provided with a connecting hole, the support plate 810 is provided with a screw hole corresponding to the connecting hole, and the lug 621 is connected with the support plate 810 by means of a screw passing through the connecting hole and the screw hole. The first pipe clamp 610 is sleeved on the pipe body of the exhaust pipe 410 and connected with the sheet metal part by means of a fastener, and the fastener can be a screw, a rivet, etc., which is convenient to install and has a firm structure.

[0068] Here, the first pipe clamp 610 and the sheet metal part are not limited to being fixed by means of a fastener, and in some embodiments, the first pipe clamp 610 can be made of sheet metal material, and the first pipe clamp 610 and the sheet metal part can be fixed by means of welding. In addition, the number of lugs 621 can be one, two or more, which is selected according to the requirement of support strength.

[0069] It should be noted that the specific shape of the first connecting piece 620 is adjusted according to actual use requirements, and this is not limited. In addition, the material of the first connecting piece 620 is not limited to sheet metal, and materials with strength and rigidity meeting the use requirements can also be used.

[0070] Referring to Figure 4 and Figure 5As shown, the fixing assembly 600 further comprises a second connecting member 630, the second connecting member 630 is connected with the pipe body of the exhaust pipe 410 and the return pipe 420 respectively, the exhaust pipe 410 is connected with the return pipe 420 through the second connecting member 630, and the return pipe 420 is arranged in a spaced manner with the exhaust pipe 410. In this way, the return pipe 420 is fixed and damped, and the vibration amplitude of the return pipe 420 is reduced.

[0071] In some embodiments, the second connecting member 630 is an elastic block, the two ends of the elastic block are respectively provided with first clamping grooves, and each first clamping groove is provided with a notch, the exhaust pipe 410 and the return pipe 420 are respectively arranged in the first clamping grooves through the notches, so that the exhaust pipe 410 and the return pipe 420 are clamped in the first clamping grooves at the two ends of the elastic block, and the installation is simple. Herein, only an example is provided, in other embodiments, the elastic block can not be provided with notches, and the exhaust pipe 410 and the return pipe 420 can be installed in the first clamping grooves through the penetrating mode.

[0072] It should be noted that the elastic block is made of rubber or other elastic materials. Taking the rubber material as an example, the rubber material has a certain elasticity and can realize the damping function, the elastic block can form two first clamping grooves through the one-piece forming mode, the exhaust pipe 410 and the return pipe 420 can be directly installed in the first clamping grooves, the elastic block can better utilize the elastic effect to weaken the vibration of the exhaust pipe 410 and the return pipe 420, avoid the pipe from swinging greatly, and the elastic block can separate the exhaust pipe 410 and the return pipe 420 by a certain distance to prevent the exhaust pipe 410 and the return pipe 420 from being scratched and worn due to vibration, and the elasticity of the elastic block can eliminate the pipe stress of the exhaust pipe 410 and the return pipe 420, absorb vibration energy, and ensure the stability of the pipe during operation.

[0073] Referring to Figure 5 and Figure 6 As shown, in some embodiments, the fixing assembly 600 further comprises a damping block 640, the damping block 640 is provided with a second clamping groove, and part of the pipe body of the return pipe 420 is arranged in the second clamping groove. The damping block 640 can be made of rubber or other elastic materials, the vibration amplitude of the return pipe 420 can be further weakened through the damping block 640, vibration energy can be absorbed, resonance can be slowed down, and vibration noise can be reduced. In an embodiment, the cross-sectional shape of the second clamping groove is substantially U-shaped, and the return pipe 420 is clamped in the second clamping groove.

[0074] Herein, only an example is provided, in other embodiments, the form of the second clamping groove is not limited to the structure shown in the above example, and the second clamping groove can be a through groove formed on the damping block 640, and the return pipe 420 can be installed in the second clamping groove through the penetrating mode.

[0075] Referring to Figure 2 and Figure 3 As shown in the figure, it can be understood that the exhaust pipe 410 includes a plurality of first pipe segments 411 formed by bending, which can be elbow pipe segments or straight pipe segments, as shown in the figure. Figure 2 As shown in the figure, after being led out by the compressor 400, the exhaust pipe 410 is bent downward and extends toward the first heat exchanger 200, then is bent upward and passes through the first pipe clamp 610, and finally is connected with the first heat exchanger 200, that is, the exhaust pipe 410 needs to extend through multiple bending to enter the first heat exchanger 200. In this way, at least one first pipe segment 411 is arranged in the vertical direction and connected with the first pipe clamp 610, so that part of the pipe segment of the exhaust pipe 410 is fixed on the support plate 810.

[0076] It should be noted that in the related art, the top-mounted air conditioner 10 is subjected to forward traction during acceleration and deceleration of the vehicle 20, and the pipe in the vertical direction is prone to breakage due to uneven force from front to back. Based on this, in the present embodiment, at least one first pipe segment 411 of the exhaust pipe 410 extending in the vertical direction is fixed by the first pipe clamp 610, which can limit the forward and backward movement of the vertical pipe, reduce the stress in the front-back and left-right directions caused by acceleration, deceleration, turning, etc. of the vehicle 20, thereby effectively reducing the risk of breakage of the exhaust pipe 410.

[0077] It can be understood that the number of the first pipe clamp 610 is not limited to one, and two or more first pipe clamps 610 can also be provided, for example, two first pipe clamps 610 can be used to fix two first pipe segments 411, and the two first pipe clamps 610 can be arranged in the vertical direction to improve the fixing and damping effect of the pipe. The specific number of the first pipe clamp 610 is selected according to the length of the exhaust pipe 410.

[0078] Referring to Figure 5 and Figure 6 As shown in the figure, the pipe between the first heat exchanger 200 and the throttling component 500 is a second connecting pipe 220, which includes a plurality of second pipe segments 221. In the embodiment, the second connecting pipe 220 is led out from the bottom of the first heat exchanger 200 and extends upward after bending, then extends in the horizontal direction after bending, and then bends upward and is connected with the throttling component 500, and the throttling component 500 is connected with the second heat exchanger 300 through the capillary tube 510. In this way, the second connecting pipe 220 is bent to form a plurality of second pipe segments 221, and the pipe between adjacent bending parts can be understood as a second pipe segment 221, and at least one second pipe segment 221 is arranged in the horizontal direction. The fixing assembly 600 further includes a second pipe clamp 650, which fixes the second pipe segment 221 extending in the horizontal direction on the chassis 100, so that the second connecting pipe 220 is fixed.

[0079] It can be understood that in the related art, when the vehicle encounters a bumpy road section during operation, the top-mounted air conditioner will vibrate up and down, and then the pipeline will also vibrate up and down. At this time, the horizontal pipeline is prone to stress fracture due to uneven stress. Based on this, by fixing the second connecting pipe 220 through the second pipe clamp 650, the up and down movement of the horizontal pipeline can be limited, the stress in the up and down and left and right directions caused by acceleration and deceleration, turning, and the like of the vehicle 20 can be reduced, and the risk of fracture of the second connecting pipe 220 can be effectively reduced.

[0080] It can be understood that one or more second pipe sections 221 can be arranged in the horizontal direction, and the number of second pipe clamps 650 is not limited to one, and two or more second pipe clamps 650 can also be provided. For example, in the horizontal direction, the second connecting pipe 220 is bent to form two second pipe sections 221, and the two second pipe sections 221 can be fixed by two second pipe clamps 650. The two second pipe clamps 650 can be arranged in the horizontal direction to improve the fixing and vibration reduction effect of the second connecting pipe 220. The specific number of second pipe clamps 650 is selected according to the length of the second connecting pipe 220.

[0081] Referring to Figure 6 It should be noted that in some embodiments, a first boss 120 is arranged on the chassis 100 near the compressor 400, and the second pipe clamp 650 is fixedly connected to the top of the first boss 120. The first boss 120 can support the second connecting pipe 220. On the one hand, it can reduce the area of the pipe body in contact with the bottom wall of the chassis 100, and reduce the transmission of vibration of the chassis 100 to the pipeline. On the other hand, it can improve the support strength of the pipeline, and also facilitate the installation of the second pipe clamp 650. The second pipe clamp 650 can be fixedly connected to the first boss 120 by screws, rivets, or the like.

[0082] Referring to Figure 6As shown, in some embodiments, the pipeline between the second heat exchanger 300 and the return air pipe 420 of the compressor 400 is a third connecting pipe 310, the third connecting pipe 310 includes multiple third pipe sections 311, and in embodiments, the third connecting pipe 310 is led out from the second heat exchanger 300 and passes through the air duct assembly 1000. On the outside of the air duct assembly 1000, in the direction of the second heat exchanger 300 towards the compressor 400, the third connecting pipe 310 is bent upwards and then bent downwards, and then extends in the horizontal direction. The return air pipe 420 is bent downwards and connected to the third connecting pipe 310. In this way, the third connecting pipe 310 is bent to form multiple third pipe sections 311, the pipeline between adjacent bending positions can be understood as a third pipe section 311, and at least one third pipe section 311 is arranged in the horizontal direction. The fixing assembly 600 further includes a third pipe clamp 660, which fixes the third pipe section 311 extending in the horizontal direction on the base plate 100 through the third pipe clamp 660, so that the third connecting pipe 310 is fixed.

[0083] It can be understood that by fixing the third connecting pipe 310 through the third pipe clamp 660, the up and down movement of the pipeline in the horizontal direction can be limited, the vibration amplitude of the third connecting pipe 310 is reduced, and when the vehicle 20 encounters a bumpy road section during operation, the risk of fracture of the third connecting pipe 310 can be effectively reduced.

[0084] It can be understood that one or more third pipe sections 311 can be arranged in the horizontal direction, and the number of third pipe clamps 660 is not limited to one, and two or more third pipe clamps 660 can also be provided. More than two third pipe clamps 660 can fix the third pipe section 311 in the horizontal direction, thereby improving the fixing and vibration reduction effect of the third connecting pipe 310. The specific number of third pipe clamps 660 is selected according to the length of the third connecting pipe 310. The third pipe clamp 660 can be fixedly connected with the second boss 130 through screws, rivets and the like fasteners.

[0085] It should be noted that the first boss 120 and the second boss 130 can be an integrally formed structure with the base plate 100, or can adopt a split type connection structure, and the specific shape is not limited. The specific number of first bosses 120 and second bosses 130 is selected according to the number requirement of the second pipe clamp 650 and the third pipe clamp 660.

[0086] Reference Figure 5 and Figure 6As shown, in some embodiments, the throttling component 500 is a capillary tube 510 connected between the second connecting tube 220 and the second heat exchanger 300. Since the capillary tube 510 is arranged adjacent to the third connecting tube 310, in embodiments, the capillary tube 510 is fixedly connected to the tube body of the third connecting tube 310 by the fixing assembly 600. Specifically, the fixing assembly 600 includes a tightening band, at least one third tube segment 311 of the third connecting tube 310 is arranged side by side with the capillary tube 510, and the capillary tube 510 is fixedly connected to the third tube segment 311 arranged side by side with it by the tightening band, so that the capillary tube 510 is effectively fixed, the vibration amplitude of the capillary tube 510 is effectively reduced, and the capillary tube 510 is prevented from interfering with other pipelines or the chassis 100 to cause abrasion.

[0087] It can be understood that the number of tightening bands is not limited to one, and the capillary tube 510 can be fixed by two or more tightening bands to improve the fixing and vibration reduction effect of the capillary tube 510. The specific number of tightening bands can be selected according to the length of the capillary tube 510. It should be noted that the tightening band is not limited to being connected to the third connecting tube 310, and in other embodiments, the capillary tube 510 can also be fixedly connected to the chassis 100 by the tightening band. For example, the capillary tube 510 can be fixed to the second boss 130 by the tightening band to reduce the contact area of the capillary tube 510 with the chassis 100.

[0088] Referring to Figure 5 As shown, it can be understood that the pipelines of the refrigerant circulation loop are all arranged on the same side of the chassis 100, and the fixing assembly 600 of the above embodiments is used to fix the exhaust pipe 410, the return air pipe 420, the second connecting tube 220, the third connecting tube 310 and the capillary tube 510. Not only can it play a role in fixing and reducing vibration, but also make the pipeline layout more compact and more reasonable, the fixing structure is stable and reliable, meet the scene that the top-mounted air conditioner 10 is normally operated in a bumpy road condition, realize the optimization of the system pipeline layout, effectively reduce the stress, reduce the mutual interference and abrasion of the pipelines due to the vibration of the vehicle 20 during operation, and even the risk of system failure caused by the fracture.

[0089] In addition, the pipelines of the refrigerant circulation loop are connected to the chassis 100 directly or indirectly, and the entire refrigerant circulation loop can move synchronously and coordinately with the chassis 100, relieve the mutual movement between the compressor 400, the two heat exchangers, the throttling component 500 and the pipelines, and avoid causing pipeline fracture due to excessive tension.

[0090] Referring to Figure 7As shown, the pipe clamp 670 adopted by the fixing assembly 600 includes a body 671 made of sheet metal, which is bent to form a limiting groove 673 matched with the pipe body of the pipeline. The body 671 is provided with connecting portions 674 at two ends, respectively. An opening 675 is defined between the two connecting portions 674 and communicates with the limiting groove 673. The pipe body can be clamped into the limiting groove 673 from the opening 675. The connecting portions 674 are used to connect with the pipeline support or the chassis 100, so as to fix the pipeline by the pipe clamp 670.

[0091] As shown, the pipe clamp 670 adopted by the fixing assembly 600 includes a body 671 made of sheet metal, which is bent to form a limiting groove 673 matched with the pipe body of the pipeline. The body 671 is provided with connecting portions 674 at two ends, respectively. An opening 675 is defined between the two connecting portions 674 and communicates with the limiting groove 673. The pipe body can be clamped into the limiting groove 673 from the opening 675. The connecting portions 674 are used to connect with the pipeline support or the chassis 100, so as to fix the pipeline by the pipe clamp 670.

[0092] As shown, the pipe clamp 670 adopted by the fixing assembly 600 includes a body 671 made of sheet metal, which is bent to form a limiting groove 673 matched with the pipe body of the pipeline. The body 671 is provided with connecting portions 674 at two ends, respectively. An opening 675 is defined between the two connecting portions 674 and communicates with the limiting groove 673. The pipe body can be clamped into the limiting groove 673 from the opening 675. The connecting portions 674 are used to connect with the pipeline support or the chassis 100, so as to fix the pipeline by the pipe clamp 670.

[0093] As shown, the pipe clamp 670 adopted by the fixing assembly 600 includes a body 671 made of sheet metal, which is bent to form a limiting groove 673 matched with the pipe body of the pipeline. The body 671 is provided with connecting portions 674 at two ends, respectively. An opening 675 is defined between the two connecting portions 674 and communicates with the limiting groove 673. The pipe body can be clamped into the limiting groove 673 from the opening 675. The connecting portions 674 are used to connect with the pipeline support or the chassis 100, so as to fix the pipeline by the pipe clamp 670.

[0094] As shown, the pipe clamp 670 adopted by the fixing assembly 600 includes a body 671 made of sheet metal, which is bent to form a limiting groove 673 matched with the pipe body of the pipeline. The body 671 is provided with connecting portions 674 at two ends, respectively. An opening 675 is defined between the two connecting portions 674 and communicates with the limiting groove 673. The pipe body can be clamped into the limiting groove 673 from the opening 675. The connecting portions 674 are used to connect with the pipeline support or the chassis 100, so as to fix the pipeline by the pipe clamp 670. Figure 8 Figure 10 As shown, the pipe clamp 670 adopted by the fixing assembly 600 includes a body 671 made of sheet metal, which is bent to form a limiting groove 673 matched with the pipe body of the pipeline. The body 671 is provided with connecting portions 674 at two ends, respectively. An opening 675 is defined between the two connecting portions 674 and communicates with the limiting groove 673. The pipe body can be clamped into the limiting groove 673 from the opening 675. The connecting portions 674 are used to connect with the pipeline support or the chassis 100, so as to fix the pipeline by the pipe clamp 670. Figure 8 Figure 10 ​​The top-mounted air conditioner 10 of the embodiment adopts a variable frequency cooling and heating system, that is, has the functions of refrigeration and heating. In the embodiment, the refrigerant circulation loop further comprises a reversing valve 700, which is specifically a four-way valve and has a first port, a second port, a third port and a fourth port. The first port is connected with the exhaust pipe 410, the second port is connected with the first heat exchanger 200 through the first connecting pipe 210, the third port is connected with the second heat exchanger 300 through the third connecting pipe 310, and the fourth port is connected with the return air pipe 420.

[0095] It can be understood that when the variable frequency cooling and heating system operates in the refrigeration mode, the first port is in communication with the second port, and the third port is in communication with the fourth port, at this time, the first heat exchanger 200 is a condenser, and the second heat exchanger 300 is an evaporator; when the variable frequency cooling and heating system operates in the heating mode, the first port is in communication with the third port, and the second port is in communication with the fourth port, at this time, the first heat exchanger 200 is an evaporator, and the second heat exchanger 300 is a condenser.

[0096] It should be noted that the exhaust pipe 410, the first connecting pipe 210, the third connecting pipe 310 and the return air pipe 420 are respectively welded and fixed with the corresponding ports of the reversing valve 700, so that the reversing valve 700 is fixed on the above-mentioned pipes. Since the exhaust pipe 410, the first connecting pipe 210, the third connecting pipe 310 and the return air pipe 420 have a certain rigidity, they can fix and support the reversing valve 700, optimize the fixing structure of the reversing valve 700, and avoid system failure caused by vibration.

[0097] Referring to Figure 9 It can be understood that the exhaust pipe 410 and the first pipe clamp 610 can be connected in the manner shown in

[0098] It can be understood that the specific connection manner of the exhaust pipe 410 and the first pipe clamp 610 can refer to the structure shown in Figure 2 The installation position of the first pipe clamp 610 is specifically adjusted according to the positions of the reversing valve 700 and the exhaust pipe 410.

[0099] Referring to Figure 10 and Figure 11As shown, one end of the first connecting pipe 210 is connected to the lower end of the reversing valve 700, and the other end is connected to the first heat exchanger 200, and the first connecting pipe 210 is bent to form multiple bending sections. The second connecting pipe 220 is connected between the first heat exchanger 200 and the throttling component 500, and part of the pipe body of the second connecting pipe 220 is fixedly connected with the first boss 120 of the bottom disc 100 through the second pipe clamp 650. One end of the third connecting pipe 310 is connected to the lower end of the reversing valve 700, and the other end is connected to the second heat exchanger 300, and part of the pipe body of the third connecting pipe 310 is fixedly connected with the second boss 130 of the bottom disc 100 through the third pipe clamp 660. The throttling component 500 is a capillary tube 510, and the capillary tube 510 is connected with the third connecting pipe 310 through a tightening belt. The return air pipe 420 of the compressor 400 is connected with the reversing valve 700, and the connection position is at the lower end of the reversing valve 700, and the return air pipe 420 is connected with the exhaust pipe 410 through the second connecting piece 630.

[0100] In this way, the exhaust pipe 410, the first connecting pipe 210, the second connecting pipe 220, the third connecting pipe 310, the capillary tube 510 and the return air pipe 420 are all fixed, and effective vibration reduction is achieved, and the specific connection mode of the second connecting pipe 220, the third connecting pipe 310 and the capillary tube 510 can be referred to Figure 2 and Figure 4 The structure of the embodiment shown achieves the optimized layout of the pipe of the variable frequency cooling and heating system, effectively reduces the stress, avoids the mutual interference and wear of the pipes due to the vibration of the vehicle 20 during operation, and reduces the risk of pipe rupture.

[0101] The embodiment of the utility model also proposes a vehicle 20, which can be a passenger car, a truck, a motor home or the like, and the vehicle 20 comprises the top-mounted air conditioner 10 of the above-mentioned embodiment, and the top of the vehicle 20 is provided with a mounting port, and the top-mounted air conditioner 10 is mounted at the mounting port and located outside the top of the vehicle 20.

[0102] Referring to Figure 12 As shown, Figure 12The overall force situation of the top-mounted air conditioner 10 is shown, G is the gravity of the air conditioner itself, T is the tension of the mounting fixing screw, N is the support force of the roof to the air conditioner, F is the traction force in the running process of the vehicle 20, and f is the friction force. When the vehicle 20 is stationary, the air conditioner will reach a static state of force balance G=T+N, F=f. When the vehicle 20 encounters a bumpy road section in the running process, T and N will change, G≠T+N, the air conditioner will be subjected to up-down vibration, and then the system pipeline will also be subjected to up-down vibration. The second pipe clamp 650 and the third pipe clamp 660 can limit the up-down movement of the pipeline in the horizontal direction, and at the same time, the protective pad 672 can effectively reduce the vibration effect, and reduce the stress fracture of the long horizontal pipeline caused by the uneven up-down force. Similarly, F≠f will also occur in the process of acceleration and deceleration of the vehicle 20. The first pipe clamp 610 can limit the front-back movement of the pipeline in the vertical direction, and reduce the fracture of the long vertical pipeline caused by the uneven front-back force.

[0103] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An overhead air conditioner characterized by comprising: The application relates to a refrigerant circulation loop, which comprises a chassis, an air duct assembly fixed to the chassis, a support assembly fixed to the chassis, a compressor, a first heat exchanger, a throttling component and a second heat exchanger connected in sequence through pipelines, wherein the compressor, the first heat exchanger and the second heat exchanger are fixed to the chassis, the compressor and the first heat exchanger are located outside the air duct assembly, the first heat exchanger is connected to the support assembly, the second heat exchanger is arranged in the air duct assembly, the pipelines comprise an exhaust pipe connected to an exhaust port of the compressor and a return pipe connected to a return port of the compressor, and a fixing assembly is arranged to fix at least one of the exhaust pipe and the return pipe to the support assembly and to fix at least part of the pipelines between the first heat exchanger and the second heat exchanger to the chassis. The support assembly is connected to one side of the first heat exchanger, the fixing assembly comprises a first connecting piece, a second connecting piece and a first pipe clamp, the first connecting piece is connected to the support assembly, the exhaust pipe is fixedly connected to the first connecting piece through the first pipe clamp, and the exhaust pipe is connected to the return pipe through the second connecting piece. The refrigerant circulation loop further comprises a reversing valve, a first port of the reversing valve is connected to the exhaust pipe, a second port of the reversing valve is connected to the first heat exchanger through a first connecting pipe, a third port of the reversing valve is connected to the second heat exchanger through a third connecting pipe, a fourth port of the reversing valve is connected to the return pipe, and the exhaust pipe, the first connecting pipe, the third connecting pipe and the return pipe are fixedly welded to the reversing valve. The exhaust pipe comprises a plurality of first pipe segments formed by bending, and at least one of the first pipe segments is arranged in a vertical direction and connected to the first pipe clamp. The second connecting piece is an elastic block, and first clamping grooves are arranged at two ends of the elastic block, the exhaust pipe and the return pipe are clamped to the first clamping grooves at the two ends of the elastic block. The support assembly comprises a support plate arranged in a circumferential direction of the first heat exchanger, the first connecting piece is a sheet metal piece, one end of the sheet metal piece is provided with a lug connected to the support plate, and the first pipe clamp is fixedly connected to the sheet metal piece through a fastener.

2. The ceiling air conditioner according to claim 1, characterized by The fixing assembly comprises a second pipe clamp, the pipelines between the first heat exchanger and the throttling component comprise a plurality of second pipe segments, at least one of the second pipe segments is arranged in a horizontal direction and fixedly connected to the chassis through the second pipe clamp.

3. The ceiling air conditioner according to claim 1 or 2, characterized by The fixing assembly comprises a third pipe clamp, the pipelines between the second heat exchanger and the compressor comprise a plurality of third pipe segments, at least one of the third pipe segments is arranged in a horizontal direction and fixedly connected to the chassis through the third pipe clamp.

4. The overhead air conditioner of claim 2, wherein The fixing assembly further comprises a tightening belt, the throttling component is a capillary tube, the capillary tube is connected between the first heat exchanger and the second heat exchanger, and the capillary tube is connected to the chassis or the third pipe segment through the tightening belt.

5. The overhead air conditioner of claim 2, wherein ​ 6. The overhead air conditioner of claim 2, wherein ​ 7. The overhead air conditioner of claim 1, wherein ​ 8. The overhead air conditioner of claim 1, wherein, ​ 9. The overhead air conditioner of claim 8, wherein, ​ 10. The overhead air conditioner of claim 1, wherein, The fixing assembly comprises a pipe clamp for fixing a pipe of the refrigerant circulation loop, the pipe clamp comprises a body, the body is bent to form a limiting groove, two ends of the body are respectively provided with connecting portions, an opening is defined between the two connecting portions and communicates with the limiting groove, the opening is configured to have an adjustable opening degree, and an inner peripheral wall of the limiting groove is provided with a protective pad.

11. The overhead air conditioner of claim 1, wherein The fixing assembly comprises a damping block, the damping block is provided with a second clamping groove, and a part of a pipe body of the gas return pipe is accommodated in the second clamping groove.

12. A vehicle characterized by comprising: The top-mounted air conditioner comprises the fixing assembly according to any one of claims 1 to 11, and is mounted on an outer side of the roof of the vehicle.

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