Overhead air conditioner and vehicle

Abstract

The application discloses a top-mounted air conditioner and a vehicle, and belongs to the technical field of air conditioning equipment. The top-mounted air conditioner is configured to be installed in a mounting port on the top of the vehicle. The top-mounted air conditioner comprises a chassis, an indoor heat exchanger and a water collecting tray. The indoor air inlet and the indoor air outlet of the chassis are communicated with the indoor of the vehicle through the mounting port on the top of the vehicle. The water collecting tray is used to collect the condensed water generated by the indoor heat exchanger. The water in the water collecting tray is drained to a water collecting groove through a first water draining groove, so that the condensed water can be recycled and utilized, the condensed water generated can be prevented from flowing to the mounting port on the top of the vehicle through the indoor air inlet or the indoor air outlet, the problem that the condensed water leaks into the vehicle through the mounting port can be effectively solved, better experience is brought to users, and the application is suitable for vehicles such as motor homes.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and in particular to a roof-mounted air conditioner and vehicle. Background Technology

[0002] In related technologies, roof-mounted air conditioners are installed on the roof of vehicles. The drainage system of the whole unit does not fully consider the drainage and collection of condensate, which makes it easy for condensate to leak into the vehicle interior from the installation port on the roof, causing water leakage in the vehicle interior and affecting the user experience. Summary of the Invention

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a roof-mounted air conditioner with a more reasonable design, which can effectively solve the problem of condensate leaking into the room from the installation port on the roof of the vehicle.

[0004] The present invention also provides a vehicle including the above-described rooftop air conditioner.

[0005] According to a first aspect of the present invention, a roof-mounted air conditioner is configured to be installed on the roof of a vehicle, including a chassis, an indoor heat exchanger, and a water collection tray. The chassis has an indoor air inlet and an indoor air outlet at its front and a water collection trough at its rear. The indoor heat exchanger is fixedly connected to the chassis and is located between the indoor air inlet and the indoor air outlet. The water collection tray is located between the chassis and the bottom of the indoor heat exchanger. The chassis has a first drainage trough that connects the water collection tray and the water collection trough.

[0006] According to a second aspect of the present invention, a vehicle includes a vehicle roof, the vehicle roof having a mounting opening, and the roof-mounted air conditioner described in the first aspect of the present invention is mounted in the mounting opening.

[0007] The roof-mounted air conditioner according to embodiments of the present invention has at least the following beneficial effects:

[0008] The chassis's indoor air inlet and outlet are connected to the vehicle's interior via mounting openings on the roof, allowing indoor air to exchange heat with the indoor heat exchanger. A drip tray collects condensate generated by the indoor heat exchanger, and the water from the drip tray is drained into a collection trough via a first drainage channel, facilitating the recycling of condensate. This effectively prevents condensate from leaking into the vehicle's interior through the indoor air inlet or outlet, providing a better user experience and making it suitable for vehicles such as motorhomes.

[0009] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the assembly structure of a roof-mounted air conditioner and the top of a vehicle according to an embodiment of the present invention;

[0011] Figure 2 This is a schematic diagram of the structure of a top-mounted air conditioner according to an embodiment of the present invention in the state without the top cover installed;

[0012] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0013] Figure 4 This is a structural schematic diagram of a top-mounted air conditioner according to an embodiment of the present invention, without the components and internal air duct fixing parts assembled.

[0014] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0015] Figure 6 yes Figure 5 Enlarged structural diagram at point a;

[0016] Figure 7 yes Figure 4 A schematic diagram of the cross-sectional structure along the CC direction;

[0017] Figure 8 yes Figure 4 Schematic diagram of the cross-sectional structure in the DD direction;

[0018] Figure 9 yes Figure 4 Schematic diagram of the cross-sectional structure in the EE direction;

[0019] Figure 10 yes Figure 9 Enlarged structural diagram at point b in the middle;

[0020] Figure 11 This is a schematic diagram of the chassis structure according to an embodiment of the present invention;

[0021] Figure 12 This is a schematic diagram of the bottom structure of a chassis according to an embodiment of the present invention;

[0022] Figure 13 This is a schematic diagram of the front structure of a chassis according to an embodiment of the present invention;

[0023] Figure 14 yes Figure 13 A schematic diagram of the cross-sectional structure along the FF direction.

[0024] Figure label:

[0025] Chassis 100; Indoor air inlet 110; Indoor air outlet 120; First drainage channel 130; Sloping surface 131; Contraction opening 132; Water collection channel 140; Water guiding slope 141; Temperature-controlled drain valve 142; Temperature-controlled drain outlet 143; Second drainage channel 150; First side wall 151; Second side wall 152; Drain hole 153; Protruding rib 154; Overflow gap 155; Stop rib 160; First stop rib 161; Second stop rib 162; Rear side plate 170; Notch 171; Rear water barrier 172; Front water barrier 180; Front left side water barrier 181; Front middle side water barrier 182; Front right side water barrier 183; Third drainage channel 190;

[0026] Top cover 200; air intake grille 210;

[0027] Internal air duct assembly 300; indoor heat exchanger 301; evaporator 310; air duct component 320; upper component 321; lower component 322; internal air duct fixing component 330; internal fan 340; internal motor 341; cross-flow fan wheel 342; water receiving tray 350; water outlet 351; first end face 352; second end face 353; groove 354;

[0028] External air duct assembly 400; outdoor heat exchanger 401; condenser 410; external air duct fastener 420; external fan 430; external motor 431; impeller 432;

[0029] Electrical control box assembly 500;

[0030] Compressor 600;

[0031] Mounting tray 700; opening 710;

[0032] 800 sealing ring;

[0033] 900 shock absorber strips;

[0034] 1000 ceiling-mounted air conditioner;

[0035] Roof 2000; Mounting port 2100. Detailed Implementation

[0036] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of this invention, it should be understood that the terms front, back, up, down, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0038] In the description of this invention, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0039] In the description of this invention, it should be noted that terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0040] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0041] Reference Figure 1 As shown, the top-mounted air conditioner 1000 of this embodiment includes a chassis 100 and a top cover 200. The top cover 200 is connected to the chassis 100. The bottom of the chassis 100 is provided with an indoor air inlet 110 and an indoor air outlet 120. Air inlet grilles 210 are provided on both sides of the chassis 100 and the top cover 200 to form an outdoor air inlet. An air outlet grille is provided on the rear side of the top cover 200 and the chassis 100 to form an outdoor air outlet.

[0042] It can be understood that, taking a motorhome (not shown in the figure) as an example, the roof-mounted air conditioner 1000 is installed on the roof 2000 of the motorhome. The roof 2000 of the motorhome has an installation opening 2100. The indoor air inlet 110 and the indoor air outlet 120 both face downward and are connected to the installation opening 2100 to realize indoor air circulation. The outside of the unit is air-intake from the outdoor air inlet on the side and air-out to the outdoor air outlet on the rear side to realize outdoor air flow.

[0043] In the embodiments of this invention, the front-back, left-right, and up-down orientations are all based on the chassis 100, combined with... Figure 1 The marked orientations serve as a reference, with the front-to-back, left-to-right, and up-down orientations of the roof-mounted air conditioner 1000 corresponding one-to-one with the orientation of the RV. Furthermore, in this embodiment, the length direction of the chassis 100 is the front-to-back direction, the width direction of the chassis 100 is the left-to-right direction, and the height direction of the chassis 100 is the up-down direction.

[0044] Reference Figure 1As shown in the embodiment, a mounting plate 700 and a sealing ring 800 are provided at the bottom of the chassis 100. The mounting plate 700 has an opening 710 corresponding to the mounting port 2100. When the roof-mounted air conditioner 1000 is installed on the roof 2000 of the RV, the mounting plate 700 is fixedly connected to the roof 2000, and the opening 710 is connected to the mounting port 2100. The roof-mounted air conditioner 1000 is installed on the mounting plate 700, and the sealing ring 800 is located between the mounting plate 700 and the roof 2000, which plays an effective sealing role, allowing the indoor air inlet 110 and the indoor air outlet 120 to communicate with the interior of the RV through the mounting port 2100. In addition, a vibration damping strip 900 is provided between the rear of the chassis 100 and the roof 2000. The vibration damping strip 900 can play a buffering role, which helps to reduce the shaking of the whole machine caused by the bumpy driving of the RV and improve the installation stability. It should be noted that the front of the chassis 100 faces the front of the RV, and the rear faces the rear of the RV.

[0045] Reference Figure 2 As shown, Figure 2 This is an assembly diagram of a roof-mounted air conditioner 1000 in its uncovered state (without the top cover 200). It can be understood that the roof-mounted air conditioner 1000 also includes an inner air duct assembly 300 and an outer air duct assembly 400. The inner air duct assembly 300 is installed at the front of the chassis 100, and the outer air duct assembly 400 is installed at the rear of the chassis 100. A space is formed between the inner air duct assembly 300 and the outer air duct assembly 400, which serves as the air intake channel for the outer air duct assembly 400. An electrical control box assembly 500 is installed on top of the air intake channel, positioned between the inner air duct assembly 300 and the outer air duct assembly 400. The electrical control box assembly 500 is electrically connected to the mounting components via wiring. The mounting components include the compressor 600, the internal fan 340, the external fan 430, and other devices. The electrical control box assembly 500 is installed on the side closer to the chassis 100, while the compressor 600 is installed on the side of the chassis 100 away from the electrical control box assembly 500. The compressor 600 is fixedly connected to the chassis 100.

[0046] Reference Figure 2 and Figure 3As shown, it can be understood that the internal air duct assembly 300 includes an indoor heat exchanger 301, an internal fan 340, and an air duct component 320. The top of the air duct component 320 is provided with an internal air duct fixing member 330, which fixes the air duct component 320 to the chassis 100. The air duct component 320 may include an upper component 321 and a lower component 322. The upper component 321 and the lower component 322 cooperate to define the indoor air duct. The indoor air duct connects the indoor air inlet 110 and the indoor air outlet 120. The indoor heat exchanger 301 is disposed in the indoor air duct and located between the indoor air inlet 110 and the indoor air outlet 120. The indoor heat exchanger 301 is fixedly connected to the chassis 100. The indoor fan 340 includes an indoor motor 341 and a cross-flow fan 342. The cross-flow fan 342 is installed in the indoor air duct. The indoor motor 341 drives the cross-flow fan 342 to run, so that the indoor air flows along the indoor air duct, thereby allowing the indoor air to exchange heat through the indoor heat exchanger 301.

[0047] It should be noted that, referring to Figure 3 As shown, in this embodiment, an indoor air duct is formed within the air duct component 320, separating the indoor air duct from the outdoor air duct and preventing cross-contamination of outdoor and indoor air. The air duct component 320 can be made of insulation material; for example, both the upper component 321 and the lower component 322 are made of foam material, providing insulation. A water collection tray 350 is formed in the middle of the lower component 322, and the indoor heat exchanger 301 is placed on the water collection tray 350. The indoor air inlet 110 and the indoor air outlet 120 are located on the front and rear sides of the water collection tray 350, respectively. Figure 4 It can be understood that the side walls on the left and right sides of the lower component 322 constitute the side walls on the left and right sides of the water receiving tray 350.

[0048] Continue to refer to Figure 2 and Figure 3 As shown, the outdoor air duct assembly 400 includes an outdoor heat exchanger 401 and an outdoor air duct fixing component 420. The outdoor heat exchanger 401 is fixed to the rear side of the chassis 100, and the outdoor air duct fixing component 420 is fixedly connected to the chassis 100. The outdoor air duct fixing component 420 is located on the front side of the outdoor heat exchanger 401 and can support the outdoor heat exchanger 401 through the outdoor air duct fixing component. The outdoor air duct fixing component 420 can also be understood as an outdoor air duct bracket. An air supply channel is formed between the outdoor air duct fixing component 420 and the outdoor heat exchanger 401. The air supply channel is connected to the air inlet channel to form an outdoor air duct. The outdoor fan 430 is installed on the outdoor air duct fixing component 420. Under the action of the outdoor fan 430, outdoor air can flow through the outdoor air inlet, outdoor air duct, outdoor heat exchanger 401 and outdoor air outlet in sequence, so that the outdoor air can exchange heat through the outdoor heat exchanger 401.

[0049] Reference Figure 2 and Figure 3As shown, it can be understood that the compressor 600 is surrounded by a piping structure, which connects the compressor 600 to the indoor heat exchanger 301 and the outdoor heat exchanger 401 to form a circulation loop, thereby forming the entire refrigeration system. In the refrigeration system, the indoor heat exchanger 301 is the evaporator 310, and the outdoor heat exchanger 401 is the condenser 410. The following embodiment uses the evaporator 310 and the condenser 410 as specific examples for illustration.

[0050] It is understandable that the roof-mounted air conditioner 1000 in this embodiment is mainly designed for use in large towed RVs. RVs have large interior spaces and require a large amount of cooling capacity. During operation, the evaporator 310 will produce a large amount of condensate. Therefore, the roof-mounted air conditioner 1000 needs to make better use of the condensate and solve problems such as drainage and protection of condensate inside the unit. Considering that RVs will face harsh operating environments during travel, such as large-angle tilting when the vehicle is facing extreme uphill or downhill slopes, it is necessary to ensure that the drainage system can quickly drain and discharge the condensate to the outside of the unit, and to ensure that the condensate does not leak into the RV interior from the installation port 2100 on the roof of the RV.

[0051] Reference Figure 3 and Figure 4 As shown, it can be understood that a water collection tank 140 is provided at the rear of the chassis 100, and the outdoor fan 430 is located above the water collection tank 140 and adjacent to the outdoor heat exchanger 401; water outlets 351 are respectively opened on the side walls of the left and right ends of the water receiving tray 350, and the water outlets 351 on the left and right sides are formed on the side walls of the lower component 322; the chassis 100 is provided with two first drainage channels 130, which are respectively located on both sides of the indoor air inlet 110, and the first row on the left side... The water tank 130 is located below the outlet 351 on the left side, and the first drainage tank 130 on the right side is located below the outlet 351 on the right side. The two first drainage tanks 130 are connected to the water collection tank 140 respectively to form a drainage channel. The condensate collected by the water receiving tray 350 is discharged from the outlets 351 on the left and right sides to the first drainage tank 130, and then flows into the water collection tank 140 along the first drainage tank 130. Thus, the condensate generated by the evaporator 310 can be collected through the water collection tank 140.

[0052] It should be noted that the number of first drainage channels 130 is not limited to two; one first drainage channel 130 can also be provided. The first drainage channel 130 can be located on the left or right side of the indoor air inlet 110, and the water receiving tray 350 is provided with one water outlet 351, depending on the position of the first drainage channel 130. In addition, the water outlet 351 is located at both ends of the water receiving tray 350, so that the water outlet 351 is not affected by the air intake of the indoor air inlet 110, and the air intake is not affected, thus improving the air intake efficiency.

[0053] Combination Figure 3It is understood that, in the embodiment, the external fan 430 includes an impeller 432 and an external motor 431. The external motor 431 is fixedly installed on the external air duct fixing member 420. The external motor 431 drives the impeller 432 to rotate, so that the outdoor air can exchange heat with the condenser 410. The impeller 432 is located above the water collection tank 140 and is close to the condenser 410. The impeller 432 can contact the condensate in the water collection tank 140. When the impeller 432 rotates, it can lift the condensate and blow it onto the surface of the condenser 410, further assisting the condenser 410 in heat dissipation, so as to make full use of the condensate and improve the heat exchange efficiency.

[0054] Considering that the drainage channels are distributed on the upper surface of the chassis 100, the back of the drainage channels may become cold and condensate during drainage and condensation collection. This could cause condensate to enter the interior of the RV from the mounting port 2100 on the roof 2000, resulting in water leakage inside the RV.

[0055] Based on this, the present invention optimizes the design of the drainage system. When the roof-mounted air conditioner 1000 is installed on the roof 2000 of the RV, the projections of the first drainage channel 130 and the water collection channel 140 are respectively spaced apart from the projection of the mounting port 2100 on the projection plane perpendicular to the chassis 100, so that the drainage system on the chassis 100 can avoid the area corresponding to the mounting port 2100 in the vertical direction.

[0056] Specifically, combined Figure 3 It can be understood that, taking the plane where the RV roof 2000 is located as the projection plane, the projection of the water collection tank 140 and the projection of the mounting port 2100 do not coincide, and the back of the water collection tank 140 on the chassis 100 will not face the mounting port 2100; combined with Figure 5 It can be understood that the projections of the two first drainage channels 130 and the mounting port 2100 do not overlap, and the projections of the two first drainage channels 130 are located on the left and right sides of the projection of the mounting port 2100, respectively. This ensures that the back of the first drainage channels 130 on the chassis 100 does not face the mounting port 2100. When draining water and collecting condensate, the back of the drainage channel will not face the mounting port 2100, effectively preventing condensate from dripping from the mounting port 2100 into the RV interior due to cooling. This effectively solves the problem of condensate entering the RV interior through the mounting port 2100, improving the user experience. The back of the first drainage channels 130 and the water collection channel 140 can be understood as the positions on the bottom surface of the chassis 100 corresponding to the first drainage channels 130 and the water collection channel 140.

[0057] It should be noted that, referring to Figure 3As shown, the drip tray 350 is located in the upper area of ​​the mounting port 2100, and the drip tray 350 forms part of the lower component 322. The lower component 322 is made of foam material. The foam has a certain thickness and has a heat insulation function. The drip tray 350 collects the condensate generated by the evaporator 310, which can prevent the condensate from contacting the chassis 100. Condensate will not form in the area near the chassis 100 at the bottom of the drip tray 350, and the problem of condensate entering the RV interior through the mounting port 2100 will not be caused.

[0058] Reference Figure 4 and Figure 5 As shown, the drainage system also includes two second drainage channels 150. The two second drainage channels 150 are set on the chassis 100 and located on the left and right sides of the indoor air inlet 110. Specifically, the second drainage channel 150 on the left is set on the side of the first drainage channel 130 on the left that is close to the mounting port 2100, and the second drainage channel 150 on the right is set on the side of the first drainage channel 130 on the right that is close to the mounting port 2100. The bottom of the two second drainage channels 150 is provided with drainage holes 153, which penetrate to the bottom surface of the chassis 100, so that the water entering the second drainage channel 150 can be discharged outside the top-mounted air conditioner 1000.

[0059] Understandably, when the roof-mounted air conditioner 1000 is installed on the roof 2000 of the RV, the projections of the first drainage channel 130 and the second drainage channel 150 are spaced apart from the projection of the mounting port 2100. That is, on the projection surface, the projection of the drain hole 153 will not coincide with the projection of the mounting port 2100, preventing water discharged from the drain hole 153 from entering the mounting port 2100. It should be noted that the number of second drainage channels 150 is determined based on the number of first drainage channels 130, and is not specifically limited.

[0060] Reference Figure 5 and Figure 6 As shown, taking the first drain trough 130 and the second drain trough 150 on the right as examples, the first drain trough 130 is located below the outlet 351 of the water receiving tray 350, and the second drain trough 150 is located to the left of the first drain trough 130. The condensate discharged from the outlet 351 can enter the first drain trough 130 and flow along it to the water collection tank 140. It can be understood that when there is too much condensate in the first drain trough 130 or when the vehicle is bumpy during driving, the water in the first drain trough 130 will overflow and enter the second drain trough 150. The water can be discharged to the outside of the vehicle through the drain hole 153. The position of the drain hole 153 avoids the area where the mounting port 2100 is located, thereby preventing the overflowing condensate from entering the RV interior along the mounting port 2100, further reducing the risk of water leakage at the mounting port 2100.

[0061] It should be noted that, since the bottom of the chassis 100 is provided with a mounting plate 700, the second drainage groove 150 is located between the first drainage groove 130 and the mounting plate 700, so that the drainage hole 153 is located outside the mounting area of ​​the mounting plate 700. Figure 6 and Figure 12 It is understood that, in the preferred embodiment, the drain hole 153 is located near the edge of the mounting plate 700 and is sealed with the sealing ring 800 to prevent the discharged condensate from passing through the mounting plate 700 and entering the mounting opening 2100. Furthermore, multiple drain holes 153 can be provided, distributed along the length of the second drain groove 150, which facilitates the rapid drainage of overflowing condensate and improves drainage efficiency.

[0062] Reference Figure 5 and Figure 6 As shown in the embodiment, the side wall of the second drainage trough 150 near the indoor air inlet 110 is the first side wall 151, and the side wall away from the indoor air inlet 110 is the second side wall 152. It can be understood that... Figure 6 The diagram shows the relative positions of the second drain trough 150 and the first drain trough 130 on the right. Condensate from the first drain trough 130 can overflow from the second sidewall 152 and enter the second drain trough 150. To prevent excessive condensate from overflowing from the first sidewall 151, the height of the first sidewall 151 is set greater than the height of the second sidewall 152, and the height difference h1 between the first sidewall 151 and the second sidewall 152 is greater than or equal to 1 mm, meaning the first sidewall 151 must be at least 1 mm higher than the second sidewall 152. It should be noted that, in conjunction with... Figure 5 It can be understood that the height difference between the two side walls of the second drainage trough 150 on the left is h2, and the height difference h2 also satisfies that it is greater than or equal to 1mm. The values ​​of h1 and h2 can be the same or different, without specific restrictions.

[0063] Reference Figure 5 and Figure 6As shown, the outlet 351 of the water receiving tray 350 is located at the bottom of the side wall of the lower component 322. The end of the water receiving tray 350 covers the upper part of the second drainage groove 150. The surface of the end facing the second drainage groove 150 is the first end face 352, and a groove 354 is formed at the end of the first end face 352 away from the first drainage groove 130. The bottom wall of the groove 354 is the second end face 353. The heights of the first end face 352 and the second end face 353 are not the same. Relative to the second end face 353, The first end face is closer to the second drain trough 150; wherein, the second end face 353 abuts against the first side wall 151, the first end face 352 and the second side wall 152 are spaced apart, and there is a certain overflow gap 155 between the first end face 352 and the second side wall 152, so that the condensate of the first drain trough 130 can overflow from the overflow gap 155 into the second drain trough 150. The value of the overflow gap 155 can be greater than or equal to 1 mm, and is not specifically limited in the embodiment.

[0064] Considering that the machine may experience sudden downhill sections or emergency braking as the vehicle moves, causing the front of the machine to tilt severely downwards, the water in the rear water collection tank 140 of the machine will flow rapidly forward and backward into the first drainage tanks 130 on the left and right sides. The drainage water channel structure of the above embodiment ensures that when a large amount of condensate suddenly accumulates inside the first drainage tank 130, the condensate can overflow over the first drainage tank 130 into the second drainage tank 150 and be quickly discharged outside the area of ​​the installation port 2100.

[0065] Combination Figure 6 It can be understood that the top of the first sidewall 151 presses against the bottom of the water receiving tray 350, forming a tight contact fit. Since the water receiving tray 350 is made of foam material, the foam is easily compressed when it comes into contact with the first sidewall 151 to achieve an interference fit, so as to form a better sealing structure and prevent too much water from suddenly flowing into the second drain trough 150 and overflowing into the area near the inner side of the installation port 2100, effectively avoiding the problem of water leakage at the installation port 2100.

[0066] Reference Figure 5As shown, it can be understood that when the roof-mounted air conditioner 1000 is installed on the roof 2000 of the RV, the sealing ring 800 is set around the mounting opening 2100, and the entire unit is installed on top of the mounting bracket 700. Along the left-right direction of the chassis 100, the width of the opening 710 of the mounting bracket 700 is k1, the width of the mounting opening 2100 is k2, the width of the evaporator 310 is k3, the distance from the left end of the evaporator 310 to the left edge of the mounting bracket 700 is k4, the distance from the left edge of the mounting bracket 700 to the left water outlet 351 is k5, and the distance from the right end of the evaporator 310 to the mounting bracket 700 is k5. The distance from the right edge of 0 is k6, and the distance from the right edge of the mounting plate 700 to the right outlet 351 is k7. The width k2 of the mounting opening 2100 is less than or equal to the width k1 of the opening 710, and the sum of k4, k3 and k6 is greater than k1. The width of the water receiving tray 350 is the sum of k5, k4, k6, k7 and k3, so that the width of the water receiving tray 350 is greater than the width of the mounting plate 700, and the second drainage channel 150 can be located between the outlet 351 of the water receiving tray 350 and the mounting plate 700. In this way, the back area of ​​the drainage channel can be located outside the installation area of ​​the mounting plate 700.

[0067] Reference Figure 6 As shown, it can be understood that the sum of k5 and k4 is the distance between the left side wall of the water receiving pan 350 and the left side plate of the evaporator 310, and the sum of k5 and k4 is greater than or equal to 20mm; the sum of k6 and k7 is the distance between the right side wall of the water receiving pan 350 and the right side end of the evaporator 310, and the sum of k6 and k7 is greater than or equal to 30mm. That is to say, the distances between the left and right sides of the evaporator 310 and the water outlets 351 on both sides of the water receiving pan 350 can be set to the same value, or the two values ​​can be different. Considering that the inlet and outlet pipes of the evaporator 310 are located on the right side of the evaporator 310, the sum of k6 and k7 can be greater than the sum of k5 and k4, which is a more reasonable design.

[0068] Reference Figure 5 and Figure 6 As shown, in this embodiment, the bottom of the chassis 100 is provided with stop ribs 160. The stop ribs 160 include first stop ribs 161 located on the left and right sides of the mounting plate 700 and second stop ribs 162 located on the front and rear sides of the mounting plate 700. Figure 12It can be understood that the first stop rib 161 is used to position the left and right sides of the mounting plate 700, and the second stop rib 162 is used to position the front and rear sides of the mounting plate 700. It should be noted that the first stop rib 161 is located between the drain hole 153 and the mounting plate 700. The first stop rib 161 not only has the function of limiting the mounting plate 700, but also can block the condensate discharged from the drain hole 153, preventing the condensate from crawling laterally around the drain hole 153 due to the capillary action of the chassis 100 surface and entering the top of the mounting plate 700, and then spreading towards the indoor air inlet 110 and the indoor air outlet 120 to form capillary water entering the room. In other words, the first stop rib 161 has the functions of positioning and waterproofing.

[0069] It should be noted that, taking the first stop rib 161 on the right side as an example, in the left and right direction of the chassis 100, the second drainage groove 150 is located between the mounting plate 700 and the outlet 351, that is, between k5 and k7. The first stop rib 161 is close to the edge of the mounting plate 700, which effectively prevents the discharged condensate from entering the mounting port 2100.

[0070] Reference Figure 7 and Figure 8 As shown, the front bottom wall of the first drainage trough 130 on both the left and right sides is flat and located below the outlet 351, used to collect the discharged condensate. The rear section of the first drainage trough 130 extends slopingly from front to back to form an inclined surface 131. The first drainage trough 130 discharges condensate to the collection tank 140 through the inclined surface 131, which facilitates the rapid discharge of condensate to the rear of the chassis 100 and prevents condensate from accumulating at the front end of the first drainage trough 130. The angle between the inclined surface 131 of the left first drainage trough 130 and the horizontal plane is α, and the angle between the inclined surface 131 of the right first drainage trough 130 and the horizontal plane is β. The values ​​of α and β are greater than or equal to 1°, that is, the inclination angle of the inclined surface 131 needs to be greater than or equal to 1°. The inclination angles of the inclined surfaces 131 on both sides can be the same or different. Figure 13 It can be understood that the backs of the slopes 131 on both sides are located outside the mounting area of ​​the mounting plate 700, so as to prevent condensation caused by the cold backs of the slopes 131 from entering the mounting port 2100.

[0071] Reference Figure 13As shown, in some embodiments, the first drainage channel 130 has a contraction opening (not shown in the figure) at the end of the inclined surface 131. The width of the contraction opening is smaller than the width of the first drainage channel 130. The first drainage channel 130 is connected to the water collection channel 140 through the contraction opening, and the width of the connection is narrowed. Alternatively, the width of the first drainage channel 130 gradually decreases near the water collection channel 140, that is, the first drainage channel 130 gradually narrows. This reduces the channel through which a large amount of condensate flows back from the water collection channel 140 along the first drainage channel 130, thereby reducing the amount of water flowing back and reducing the drainage burden of the front second drainage channel 150, and reducing the risk of condensate entering the area corresponding to the installation port 2100.

[0072] Reference Figure 9 and Figure 11 As shown, a rear side plate 170 is provided along the rear edge of the chassis 100. The rear side plate 170 has a notch 171. The bottom of the rear side plate 170 forms a rear water baffle 172 of the water collection trough 140 at the notch 171. It can be understood that the chassis 100 forms the water collection trough 140 by the cooperation of water baffles in various directions. The height of the rear water baffle 172 is relatively small. Therefore, when the water collection trough 140 collects a lot of condensate, the condensate can overflow along the rear water baffle 172 and be discharged to the outside of the whole machine.

[0073] Combination Figure 3 It is understood that in the embodiment, the bottom surface of the water receiving tray 350 is higher than the rear baffle wall 172, and the height difference between the two is h3. The value of h3 is greater than or equal to 1mm, so that the condensate generated by the water receiving tray 350 can be discharged into the water collection tank 140 in a timely manner. By setting the above-mentioned height difference, even if the water collection tank 140 is full of condensate, the condensate will pass over the rear baffle wall 172 and be discharged away, so that condensate will not accumulate inside the water receiving tray 350.

[0074] Furthermore, it is understood that in the embodiment, the height of the top of the first sidewall 151 of the second drainage channel 150 is greater than the height of the top of the rear water baffle 172, and the height difference is designed to be greater than or equal to 1mm. By adopting the above-mentioned height difference structure, even if the air conditioner is turned on for a long time when the vehicle is parked on a flat road surface and the rear water collection channel 140 is full of condensate, the condensate will overflow from the rear edge of the whole unit, or the condensate will overflow from the first drainage channel 130 to the second drainage channel 150 and be discharged to the outside of the whole unit, ensuring that the condensate will not overflow further across the first sidewall 151 into the area of ​​the mounting port 2100. The dual protection effectively solves the problem of condensate entering the mounting port 2100 and dripping into the room. Of course, it can also better cope with the need to prevent water leakage when a large amount of condensate from the rear rushes forward when tilting forward.

[0075] Reference Figure 9 and Figure 10As shown, it should be noted that the chassis 100 has a second stop rib 162 at the rear edge of the mounting plate 700, which is used to limit the front and rear position of the mounting plate 700 when it is installed on the chassis 100; the back of the second stop rib 162 is the front water-retaining wall 180 formed by extending upward from the chassis 100. Figure 9 As can be seen, the height of the front water deflector 180 is greater than the height of the rear water deflector 172, and the top of the front water deflector 180 is covered by the foam body of the lower component 322, forming a sealed structure. This can prevent condensation water splashed by the impeller 432 or external rainwater from splashing in through the air intake grille 210 and entering the gap between the front water deflector 180 and the foam body, thereby effectively preventing water from leaking along the chassis 100 into the indoor air intake 110 and then dripping into the RV interior from the mounting port 2100.

[0076] Reference Figure 9 As shown, a water-guiding inclined surface 141 is provided between the front water-retaining wall 180 and the rear water-retaining wall 172, combined with... Figure 11 It can be understood that the front side of the front water baffle 180 is the installation area of ​​the inner air duct assembly 300. The installation area of ​​the inner air duct assembly 300 roughly corresponds to the installation area of ​​the mounting plate 700. The water guide slope 141 is located on the rear side of the front water baffle 180. The water guide slope 141 can guide the condensate water stirred up by the impeller 432 to flow back to the rear. The inclination angle of the water guide slope 141 can be set to be greater than or equal to 1°.

[0077] Reference Figure 11 and Figure 12 To demonstrate the drainage system on chassis 100 in more detail, Figure 11 This diagram shows the overall structure of chassis 100. Figure 12 The diagram shows the mounting plate 700 and sealing ring 800 after assembly on the chassis 100. It is understood that the height of the front water-blocking walls 180 is higher than the height of the water-blocking walls at other locations on the water collection tank 140. The front water-blocking walls 180 include a front left water-blocking wall 181, a front middle water-blocking wall 182, and a front right water-blocking wall 183. These water-blocking walls effectively block the front of the water collection tank 140, preventing a large amount of condensate from entering the installation area of ​​the internal air duct assembly 300 and further leaking into the RV interior.

[0078] It should be pointed out that, from Figure 11 and Figure 12It is understood that the drain hole 153 is not limited to being located in the second drain groove 150. In addition to the first drain groove 130, the water collection groove 140, and the area directly opposite the upper part of the mounting plate 700, drain holes 153 can also be set in other areas of the chassis 100 according to actual application needs. For example, a drain hole 153 can be set near the front left water baffle 181. This is beneficial for the whole machine to tilt forward when the vehicle tilts forward, and a large amount of condensate can be quickly diverted through the drain hole 153 near the front left water baffle 181 and discharged to the outside of the chassis 100.

[0079] Reference Figure 13 As shown, Figure 13 The diagram shows a front view of the chassis 100. The front ends of the second drainage channels 150 on both sides are provided with bent sections, which extend to the front of the first drainage channel 130, making the second drainage channel 150 approximately L-shaped and partially enclosing the first drainage channel 130. In addition, the bottom of the second drainage channel 150 has multiple drainage holes 153 to facilitate the timely drainage of overflowing condensate to the outside of the chassis 100. Ribs 154 are provided between adjacent drainage holes 153 to strengthen the structure of the chassis 100.

[0080] It should be noted that in the embodiment, the first sidewall 151 of the second drainage channel 150 is higher than the second sidewall 152. The first sidewall 151 and the bottom surface of the water receiving tray 350 cooperate to form a sealing structure, and the second drainage channel 150 partially surrounds the front of the first drainage channel 130. With the above structure, when the entire roof-mounted air conditioner 1000 is full of water and the vehicle suddenly goes downhill or brakes suddenly, and the whole unit forms an instantaneous front-low and rear-high state, a large amount of condensate in the water collection tank 140 moves forward quickly, and the second drainage channel 150 can quickly discharge the incoming water flow, preventing the water flow from entering the installation area of ​​the inner air duct assembly 300.

[0081] Reference Figure 13 As shown, in some embodiments, the chassis 100 is further provided with a third drainage channel 190. The third drainage channel 190 is located on the side of the front baffle 180 near the indoor air inlet 110. The third drainage channel 190 extends along the front baffle 180 and communicates with the second drainage channel 150. The third drainage channel 190 is located in the mounting area of ​​the lower component 322 and extends along the edge of the mounting area to the second drainage channel 150. Figure 13 The embodiment shows that the third drainage channel 190 is connected to the second drainage channel 150 on the right side. The third drainage channel 190 can also be connected to the second drainage channel 150 on the left side, or simultaneously connected to the second drainage channels 150 on both sides. Considering that in extreme situations during vehicle operation, if water from the water collection channel 140 overflows forward onto the front water barrier 180, the third drainage channel 190 can guide the overflowing water to the second drainage channel 150, preventing water from further entering the indoor air inlet 110.

[0082] Reference Figure 14 As shown, in some embodiments, a temperature-controlled drain valve 142 is provided in the water collection tank 140, and a temperature-controlled drain port 143 is provided in the chassis 100 and connected to the temperature-controlled drain valve 142. The temperature-controlled drain valve 142 can block the temperature-controlled drain port 143 of the chassis 100 at normal temperature and automatically open the drain port in cold weather to assist in achieving rapid drainage. This is applicable to the cooling and heating type roof-mounted air conditioner 1000, which needs to defrost and drain quickly when heating in winter.

[0083] This invention also provides a vehicle, specifically a motorhome or other type of vehicle, including the roof-mounted air conditioner 1000 described in the above embodiment. Taking a motorhome as an example, the roof-mounted air conditioner 1000 is installed on the roof 2000 of the motorhome. Both the indoor air inlet 110 and the indoor air outlet 120 are connected to the mounting opening 2100 on the roof 2000, enabling indoor air circulation. The unit draws in air from the side and exhausts it to the rear, achieving outdoor airflow. During drainage and condensate collection, the back of the drainage channel does not face the mounting opening 2100, effectively preventing condensate from dripping into the motorhome interior from the mounting opening 2100, thus improving the user experience.

[0084] Since the vehicle adopts all the technical solutions of the roof-mounted air conditioner 1000 of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0085] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A roof-mounted air conditioner, configured to be installed in a mounting port on the roof of a vehicle, characterized in that, include: The chassis has an indoor air inlet and an indoor air outlet at the front, and a water collection tank at the rear. An indoor heat exchanger is fixedly connected to the chassis and located between the indoor air inlet and the indoor air outlet; A water receiving tray is located between the bottom of the chassis and the bottom of the indoor heat exchanger; The chassis is provided with a first drainage trough, which connects the water receiving tray and the water collection trough. The chassis is also provided with a second drainage channel that communicates with the first drainage channel. The second drainage channel is located on the side of the first drainage channel that is close to the indoor air inlet. The side wall of the second drainage channel that is close to the indoor air inlet is the first side wall, and the side wall that is away from the indoor air inlet is the second side wall. The bottom of the second drainage channel is provided with a drainage hole.

2. The roof-mounted air conditioner according to claim 1, characterized in that, When the roof-mounted air conditioner is installed on the top of the vehicle, the projections of the first drainage channel and the water collection channel are respectively spaced apart from the projection of the vehicle's mounting port on the projection plane perpendicular to the chassis direction.

3. The roof-mounted air conditioner according to claim 1, characterized in that, When the roof-mounted air conditioner is installed on the top of the vehicle, the projection of the second drainage groove and the projection of the vehicle's mounting port are spaced apart on the projection plane perpendicular to the chassis direction.

4. The roof-mounted air conditioner according to claim 1, characterized in that, The drainage holes are provided in multiple locations and are spaced apart along the length of the second drainage channel, with ribs provided between adjacent drainage holes.

5. The roof-mounted air conditioner according to claim 1, characterized in that, The height of the first sidewall is greater than the height of the second sidewall, and the height difference is greater than or equal to 1 mm.

6. The roof-mounted air conditioner according to claim 1, characterized in that, The end of the water receiving tray extends toward the first drainage trough along the width direction of the chassis and covers the upper surface of the second drainage trough. The surface of the end facing the second drainage trough is a first end face. The end of the first end face away from the first drainage trough is recessed to form a second end face. The second end face abuts against the first side wall, and an overflow gap is formed between the first end face and the second side wall.

7. The roof-mounted air conditioner according to claim 1, characterized in that, Along the length of the chassis, the front end of the second drainage trough is provided with a bent section that extends forward to the front side of the first drainage trough.

8. The roof-mounted air conditioner according to claim 1, characterized in that, The chassis has a rear side plate along its rear edge. The rear side plate has a notch. The bottom of the rear side plate forms the rear water baffle of the water collection trough at the notch. The top height of the first side plate is greater than the top height of the rear water baffle.

9. The roof-mounted air conditioner according to claim 8, characterized in that, The front edge of the water collection trough is provided with a front water baffle wall, the height of which is greater than the height of the rear water baffle wall.

10. The roof-mounted air conditioner according to claim 9, characterized in that, The chassis is provided with a third drainage channel, which is located on the side of the front water baffle wall near the indoor air inlet. The third drainage channel extends along the front water baffle wall and communicates with the second drainage channel.

11. The roof-mounted air conditioner according to claim 1, characterized in that, The distance between the left side wall of the water receiving tray and the left end of the indoor heat exchanger is greater than or equal to 20mm, and the distance between the right side wall of the water receiving tray and the right end of the indoor heat exchanger is greater than or equal to 30mm.

12. The roof-mounted air conditioner according to claim 1, characterized in that, The bottom of the chassis is provided with a mounting plate and a sealing ring. The bottom of the chassis is provided with a stop rib for positioning the mounting plate. The stop rib is provided at least between the drain hole and the mounting plate. The width of the water receiving tray is greater than the width of the mounting plate. The mounting plate has an opening. When the roof-mounted air conditioner is installed on the top of the vehicle, the opening communicates with the installation port of the RV. The sealing ring is located between the mounting plate and the top of the vehicle.

13. The roof-mounted air conditioner according to claim 12, characterized in that, When the roof-mounted air conditioner is installed on the top of the vehicle, the width of the opening along the width direction of the chassis is greater than or equal to the width of the vehicle's mounting opening.

14. The roof-mounted air conditioner according to claim 1, characterized in that, At least a portion of the bottom wall of the first drainage trough extends downward from front to back along the length of the chassis to the water collection trough.

15. The roof-mounted air conditioner according to claim 1, characterized in that, The first drainage trough has a constriction opening at one end that connects to the water collection trough, and the width of the constriction opening is smaller than the width of the first drainage trough.

16. The roof-mounted air conditioner according to claim 1, characterized in that, The roof-mounted air conditioner also includes a duct component made of insulation material, an indoor duct connecting the indoor air inlet and the indoor air outlet is formed in the duct component, the indoor heat exchanger is disposed in the indoor duct, and the water collection tray is formed at the bottom of the duct component.

17. The roof-mounted air conditioner according to claim 1, characterized in that, The roof-mounted air conditioner also includes: An outdoor heat exchanger is fixedly connected to the rear of the chassis; An outdoor fan includes an impeller and an external motor that drives the impeller to rotate. The impeller is located above the water collection tank and is configured to pump water from the water collection tank toward the outdoor heat exchanger when rotating.

18. A vehicle, including a vehicle roof, said vehicle roof having a mounting opening, characterized in that, The roof-mounted air conditioner according to any one of claims 1-17 is installed in the mounting port.

Images