Automobile heater installation structure and automobile

Abstract

The present invention discloses a car heater installation structure and a car, belonging to the field of car heating technology, comprising a double-layer floor structure, the double-layer floor structure comprising an upper floor and a lower floor, the upper floor being a two-stage step structure when viewed from the side, fixed to the lower floor when viewed from the side as an approximately L-shaped structure, forming a step structure with a hollow cavity, the vertical end face of the upper floor being provided with an air outlet, and the lower floor comprising a heater installation frame, the heater installation frame being accommodated in the hollow cavity of the step and adjacent to the air outlet. The double-layer floor of the present invention constitutes a step structure, a heater is installed therein and air is supplied from the air outlet on the side wall of the step, and seats are installed on the step to prevent the heater from directly blowing on the lower limbs of passengers, making them more comfortable; the height of the step can be adapted to heaters of different heights; the heater is installed inside the floor to provide more room for the legs to move, and the seat shape and function are no longer restricted; the double-layer floor structure is composed of aluminum alloy and polypropylene honeycomb panels, achieving energy conservation, emission reduction, and lightweighting.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobile heating, and in particular relates to an automobile heater installation structure and an automobile. Background Art

[0002] To provide a better passenger experience during cold winter months, car heaters are often installed inside cars. Due to the limited space in the car's structure, existing car heaters are typically placed beneath the car seats. This design leverages the rising properties of hot air to more effectively distribute warm air and deliver warm air to the passenger's feet. This design often protrudes from the floor, which not only affects the shape and function of the car seats, making them less aesthetically pleasing, but also reduces leg room, impacting passenger comfort. Furthermore, the high-heat air from the heater directly hits the passenger's legs and feet. While this quickly warms these areas and provides warmth, over time, passengers notice a significant temperature difference between their legs and feet and the rest of their bodies. This heat can burn them, but they cannot avoid it due to space constraints, resulting in a poor passenger experience. Furthermore, this conventional heater installation structure, due to its bulk and weight, fails to meet the demands for energy conservation, emission reduction, and lightweighting in automobiles. Summary of the Invention

[0003] The object of the present invention is to provide a car heater installation structure and a car, which forms a step structure through a double-layer floor, and the heater is installed in the step space. The high-temperature gas of the heater is blown out from the air outlet on the vertical side wall of the step. The car seat is installed on the upper honeycomb floor of the step structure. The footrest support frame provides supporting strength for the passenger footrest, which can prevent the hot air blown by the heater from directly blowing onto the legs and feet, thereby improving the comfort of the passengers; the height of the step structure can be adjusted according to the height of the heater, and the application range is wide; the step structure of the double-layer floor of the present invention is more beautiful and increases the leg movement space of the passengers; compared with the installation method of installing the heater under the seat, the installation structure of the heater of the present invention will not affect the shape and function of the car seat, and can improve the riding comfort of the passengers; the installation structure of the double-layer floor of the present invention adopts aluminum alloy material and honeycomb floor, which achieves the purpose of energy saving, emission reduction and lightweight of the car while ensuring the supporting strength.

[0004] The specific plan is as follows:

[0005] A car heater mounting structure includes a double-layer floor structure, which includes an upper floor and a lower floor. The upper floor is a two-stage step structure when viewed from the side, and the lower floor is approximately an L-shaped structure when viewed from the side. The upper floor is fixedly connected to the lower floor to form a step structure with a hollow cavity. An air outlet is provided on the vertical end surface of the upper floor. The lower floor includes a heater mounting frame, which is arranged in the accommodating space formed by the upper floor and the lower floor and is adjacent to the corresponding air outlet.

[0006] The present invention is applicable to buses, especially small buses. In cold winter, the doors of buses are often opened when passengers get on and off the bus, which lowers the temperature inside the bus. In particular, the passengers' lower limbs will feel noticeably cold. In order to solve this problem and provide passengers with a better riding experience, traditional buses usually install a heater under the car seat. The air supply port of the heater is set behind the passenger's legs, and the heater blows hot air directly at the legs and feet. Although such a design can quickly increase the temperature of the passenger's lower limbs, the heater blows directly at a close distance, which can cause local overheating of the lower limbs when the passenger sits for a long time. Moreover, due to the limited space in the car, the passenger cannot avoid the air supply port, which makes the passenger's riding experience worse. The step structure formed by the double-layer floor structure of the present invention changes the installation position and air supply position of the heater. It can not only use the rising characteristics of hot air flow to heat the passenger's lower limbs, but also prevent direct blowing that makes the passenger feel uncomfortable. At the same time, it can also expand the passenger's leg space, improve the aesthetics and comfort of the bus seat, and achieve the purpose of lightweighting the car and reducing emissions.

[0007] The lower floor of the double-layer floor structure serves as part of the vehicle's body-in-white (BIW) floor, contributing to the overall performance of the BIW while also securing the heater and sealing the passenger compartment. The upper floor, viewed from the side, is a two-step structure fixedly connected to the lower floor, which is approximately L-shaped in side view, forming a stepped structure. Air outlets are provided on the vertical end surfaces of the upper floor. A heater mounting bracket is fixedly connected to the space formed by the upper and lower floors. The heater is fixedly mounted on the bracket, with the heater's air supply and outlet adjacent to each other. The height of the upper floor can be adjusted to accommodate heaters of varying heights, extending its applicability. Car seats are positioned above the steps, with passengers seated on the steps and their feet resting on the upper honeycomb floor. When the heater delivers hot air, it is blown out through the outlet, providing warm air at the passenger's feet without directly blowing on their legs and feet, significantly enhancing passenger comfort.

[0008] The lower floor panel of the double-layer floor structure is made from bent aluminum sheets. Horizontal hems are located at both the upper and lower ends of the lower floor panel, and the middle portion is angled, forming a rectangular folded plate that resembles a Z-shaped structure when viewed from the side. The upper hem is welded to the lower floor rear crossbeam, while the lower hem is welded to the middle portion of the lower floor center crossbeam. Two lower floor rear longitudinal beams are symmetrically welded to the left and right ends of the lower floor panel. The lower vertical end surfaces of the front ends of the two lower floor rear crossbeams are welded to the left and right rear vertical end surfaces of the lower floor center crossbeam. The upper portion of the lower floor rear longitudinal beams has a stepped surface, and the stepped surfaces of the lower floor rear longitudinal beams fixed at both ends of the lower floor panel are of the same height. The upper end surface of the rear portion of the lower floor rear longitudinal beam is flush with the upper end surface of the lower floor rear crossbeam. The front connecting plate of the lower floor is an L-shaped folded plate. The vertical end surface of the lower floor front connecting plate is welded to the vertical end surface of the front end of the lower floor center crossbeam, and the horizontal end surface of the lower floor front connecting plate is welded to the upper end surface of the lower floor front crossbeam. Two lower floor sill beams are welded horizontally and vertically to the left and right ends of the lower floor front crossbeam. Two lower floor front longitudinal beams are evenly spaced and welded to the lower floor front crossbeam between the two lower floor sill beams and parallel to the two lower floor sill beams. The number of heater mounting brackets is set according to the needs of the vehicle model. If multiple heaters are required, multiple heater mounting brackets are evenly arranged and fixed to the lower floor center crossbeam. The heater air supply port faces the corresponding air outlet of the upper floor and the ventilation cover snapped onto the air outlet. The number of air outlets and ventilation covers matches the number of heaters.

[0009] The upper floor panel consists of a footrest support frame, honeycomb flooring, carpet, and at least one ventilation cover. The footrest support frame is made of aluminum and has an inverted L-shaped frame structure. The honeycomb flooring is laid and fixed to the outer surface of the footrest support frame, and the carpet is bonded to the honeycomb flooring in a matching shape. The honeycomb flooring is a polypropylene honeycomb panel, a hollow sheet material made of polypropylene. Its lightweight and high strength contribute to vehicle weight reduction. The lower floor panel and the lower floor front connecting plate are both constructed of aluminum. This double-layer floor structure meets the needs of lightweighting, energy conservation, and emission reduction.

[0010] Two automobile heater mounting structures can be installed in a small passenger car and arranged opposite to each other. The two automobile heater mounting structures are arranged opposite to each other and the corresponding parts between them are connected to form an integrated structure.

[0011] The electric car's heater can be connected to the air conditioning system.

[0012] Furthermore, the lower floor also includes a lower floor panel, two lower floor rear longitudinal beams, a lower floor front cross beam, a lower floor middle cross beam, a lower floor rear cross beam, and a lower floor front connecting plate. The lower floor panel is a rectangular folded plate with horizontal folded edges at both the upper and lower ends and a side view forming an approximately Z-shaped structure. The folded edge at the upper end of the lower floor panel is fixedly connected to the upper end surface of the lower floor rear cross beam, and the folded edge at the lower end of the lower floor panel is fixedly connected to the middle part of the upper end surface of the lower floor middle cross beam. Each lower floor rear longitudinal beam is provided with a step surface, and the two lower floor rear longitudinal beams are symmetrically fixedly connected The left and right ends of the lower floor panel and the front lower end surfaces are respectively fixedly connected to the rear end surfaces on the left and right sides of the lower middle cross beam. The rear upper end surfaces of the two lower floor rear longitudinal beams are flush with the upper end surface of the lower floor rear cross beam. The front connecting plate of the lower floor is an L-shaped folded plate. The vertical end surface and horizontal end surface of the front connecting plate of the lower floor are respectively matched and fixedly connected to the front end surface of the lower floor middle cross beam and the upper end surface of the front cross beam of the lower floor. There is at least one heater mounting bracket, and each heater mounting bracket is fixedly connected to the lower floor middle cross beam and its front end is adjacent to the corresponding air outlet.

[0013] The lower floor panel and lower floor front connecting plate are made of bent aluminum sheet metal. The two lower floor rear longitudinal beams, the lower floor front crossbeam, the lower floor center crossbeam, and the lower floor rear crossbeam are all made of aluminum profiles. The lower floor panel is tilted, with its middle portion forming a downwardly sloping structure when viewed from the side. The upper and lower folded plates are welded to the middle portions of the upper end surfaces of the lower floor rear crossbeam and the lower floor center crossbeam, respectively. The left and right ends of the lower floor panel are welded to the corresponding lower floor rear longitudinal beams, and the lower front ends of the two lower floor rear longitudinal beams are welded to the rear end surfaces on the left and right sides of the lower floor center crossbeam, respectively. The lower floor rear longitudinal beam is provided with a step surface with bolt mounting holes. The step surfaces of the two lower floor rear longitudinal beams are of the same height and are used for bolting and connecting with the rear support beam of the upper floor footrest frame. The front connecting plate of the lower floor rear longitudinal beam is an L-shaped aluminum folded plate, whose vertical end face and horizontal end face are respectively matched and welded to the vertical front end face of the lower floor middle beam and the upper end face of the front cross beam of the lower floor. The upper end face of the front connecting plate of the lower floor is used to be fixed to the lower support cross beam of the footrest support frame with bolts.

[0014] Furthermore, the upper floor includes a foot support frame, a honeycomb floor, a carpet and at least one ventilation cover. The foot support frame is an inverted L-shaped frame and is fixedly connected to the lower floor and its upper end face is flush with the upper end face of the rear cross beam of the lower floor. The honeycomb floor is matched and covered and connected to the foot support frame and the lower floor. At least one air outlet is provided on the vertical end face of the front end of the honeycomb floor. The carpet is matched and fixedly connected to the outer end face of the honeycomb floor. Multiple ventilation holes are evenly distributed on each ventilation cover and are matched and clipped to the corresponding air outlet.

[0015] The rear support crossbeam of the footrest support frame of the upper floor is bolted to the step surface of the two rear longitudinal beams of the lower floor, and the lower support crossbeam is bolted to the front connecting plate of the lower floor to form an inverted L shape. The honeycomb floor of the upper floor is covered on the footrest support frame and the lower floor to form a step structure of the vehicle interior floor. The heater mounting frame is accommodated in the accommodating space formed by the footrest support frame and the lower floor. The heater is fixedly installed on the heater mounting frame. At least one through hole, i.e., an air outlet, is provided on the vertical end face of the honeycomb floor. The heater air supply port faces the air outlet. The ventilation hood cover is clamped on the air outlet. The carpet is bonded to the outer end face of the honeycomb floor in a matching shape. The car seat is installed on the upper end surface of the honeycomb floor. The footrest support frame and the honeycomb floor provide footrest support for the car seat and passengers. After getting on the car, the passenger goes up the steps from the lower honeycomb floor and sits on the car seat. The hot air from the heater is blown out from the air outlet on the side wall of the steps under the feet of the passenger. The hot air rises to warm the passenger's lower limbs, avoiding the problem of local overheating and discomfort caused by hot air blowing directly on the legs and feet for a long time.

[0016] Furthermore, the footrest support frame includes a front support beam, a rear support beam, a lower support beam, multiple vertical support beams and multiple longitudinal support beams. The front support beam and the rear support beam are arranged in parallel, and the multiple longitudinal support beams are evenly spaced and fixedly connected between the front support beam and the rear support beam. The front support beam and the lower support beam are arranged in parallel, and the multiple vertical support beams are evenly spaced and fixedly connected between the front support beam and the lower support beam. The plane formed by the front support beam and the rear support beam is perpendicular to the plane formed by the front support beam and the lower support beam to form an inverted L-shaped frame structure. The rear support beam is threadedly fixed to the step surface of the two rear longitudinal beams of the lower floor, and the lower support beam is threadedly fixed to the front connecting plate of the lower floor.

[0017] The front support beam and the rear support beam of the footrest support frame are arranged in parallel, and multiple longitudinal support beams are evenly spaced and fixedly connected between the front support beam and the rear support beam. The front support beam and the lower support beam are arranged in parallel, and multiple vertical support beams are evenly spaced and fixedly connected between the front support beam and the lower support beam. The plane formed by the front support beam and the rear support beam is perpendicular to the plane formed by the front support beam and the lower support beam to form an inverted L-shaped frame structure. The rear support beam and the lower support beam of the footrest support frame are respectively fixed to the step surface of the rear longitudinal beam of the lower floor and the upper end surface of the front connecting plate of the lower floor by the cooperation of bolts and nuts to form a step structure.

[0018] Furthermore, the honeycomb floor includes a first honeycomb floor, a second honeycomb floor and a third honeycomb floor. The first honeycomb floor is matched, bonded and riveted to the upper end surface of the front supporting beam, the longitudinal supporting beam, the rear supporting beam and the rear beam of the lower floor. The second honeycomb floor is provided with at least one air outlet, and the ventilation hood cover is matched and clamped on the corresponding air outlet. The second honeycomb floor is matched, bonded and riveted to the vertical outer end surface of the front supporting beam, the vertical supporting beam and the lower supporting beam. The third honeycomb floor is matched, bonded and riveted to the upper end surface of the front end of the lower floor.

[0019] The first honeycomb floor forms the upper panel of the vehicle floor step, bonded and riveted to the upper end surface of the planar frame formed by the front, longitudinal, and rear support beams. The second honeycomb floor forms the vertical panel of the step, bonded and riveted to the vertical outer end surface of the planar frame formed by the front, vertical, and lower support beams. The third honeycomb floor forms the horizontal panel below the step, bonded and riveted to the upper end surface formed by the two lower floor sill beams and the two lower floor front longitudinal beams. The second honeycomb floor features at least one through-hole, or air outlet, on which the vent cover clips in place.

[0020] Furthermore, a horizontal right-angled fan-shaped tube is provided at the upper edge of the front end of the front supporting beam, and the adjacent end faces of the first honeycomb floor and the second honeycomb floor are respectively fixedly connected to the rectangular end faces corresponding to the right-angled fan-shaped tube, and the thickness of the first honeycomb floor and the second honeycomb floor are respectively the same as the height of the rectangular end faces corresponding to the right-angled fan-shaped tube.

[0021] The first honeycomb floor is bonded and riveted to the upper end surface of the planar frame formed by the front and rear support beams, while the second honeycomb floor is bonded and riveted to the planar frame formed by the front and lower support beams. Because the first and second honeycomb floors are of considerable thickness, a right-angle structure appears at their junction, affecting safety and aesthetics. A right-angled fan-shaped tube is horizontally installed at the front upper edge of the front support beam. The two rectangular end surfaces of the right-angled fan-shaped tube are fixedly connected to the first and second honeycomb floors, respectively, achieving the styling expression of the rounded corner transition area in the vehicle interior.

[0022] Furthermore, the lower floor also includes two lower floor door sill beams and two lower floor front longitudinal beams. The two lower floor door sill beams and the two lower floor front longitudinal beams are evenly spaced and vertically fixed to the lower floor front cross beam, and the two lower floor door sill beams are respectively located on the left and right sides of the two lower floor front longitudinal beams. The upper end surfaces of the two lower floor door sill beams and the two lower floor front longitudinal beams are flush, and the third honeycomb floor is matched, bonded and riveted to the upper end surfaces of the two lower floor door sill beams and the two lower floor front longitudinal beams.

[0023] The lower floor also includes two lower floor sill beams and two lower floor front longitudinal beams. The two lower floor sill beams are vertically fixed to the left and right ends of the lower floor front cross beam, respectively. The two lower floor front longitudinal beams are spaced parallel and fixed between the two lower floor sill beams and fixed to the lower floor front cross beams, with their upper end surfaces flush with the upper end surfaces of the two lower floor sill beams. A third honeycomb floor is fixed to the upper end surfaces of the two lower floor sill beams and the two lower floor front longitudinal beams through bonding and riveting. Carpet is bonded to the upper end surface of the third honeycomb floor, forming the floor beneath the interior steps. When boarding the vehicle, passengers first step onto this floor before climbing onto the steps and sitting on the vehicle seats.

[0024] Furthermore, the materials of the footrest support frame and the lower floor are both aluminum alloy, and the material of the honeycomb floor is polypropylene honeycomb board.

[0025] The footrest support frame, lower floor rear longitudinal beam, lower floor front cross beam, lower floor middle cross beam, lower floor rear cross beam, lower floor door sill beam and lower floor front longitudinal beam are all made of aluminum profiles, and the lower floor panel surface and lower floor front connecting plate are both bent aluminum plates; the honeycomb floor is made of polypropylene honeycomb panels, which meets the requirements of lightweight vehicles and achieves energy conservation and emission reduction.

[0026] Furthermore, there are two double-layer floor structures which are arranged opposite to each other, and the door sill beams, the front longitudinal beams of the lower floor and the third honeycomb floor of the two double-layer floor structures are respectively connected to form an integrated structure.

[0027] Two heater installation structures can be arranged opposite to each other in a small passenger car. The corresponding parts of the two double-layer floor structures are fixedly connected to form an integrated inverted "X"-shaped step structure. The car seat is installed on the first honeycomb floor of the step. The third honeycomb floor below the step is fixedly connected to form an integrated structure and faces the car door.

[0028] An automobile comprises the automobile heater mounting structure, a heater, a body-in-white and an automobile seat, wherein the heater is threadedly fixed to the heater mounting frame and its air supply port is adjacent to the air outlet, the double-layer floor structure is threadedly fixed to the body-in-white, the rear longitudinal beam of the lower floor is adjacent to the corresponding wheel cover, and the automobile seat is fixedly connected to the first honeycomb floor.

[0029] The heater is threadedly fixed to the heater mounting bracket, with its air outlet adjacent to the outlet of the second honeycomb floor. Hot air is blown from the outlet through a vent cover snapped onto the outlet and delivered into the vehicle, providing an aesthetically pleasing and dustproof design. The double-layer floor structure is bolted to the body-in-white with threaded bolts, forming the interior floor structure while securing the heater's mounting position. The threaded fastening facilitates disassembly and maintenance during overhauls. If the heater mounting structure is installed at the rear of the vehicle, the two lower floor rear longitudinal beams abut the corresponding rear wheel arches. If the heater mounting structure is installed at the front of the vehicle, the two lower floor rear longitudinal beams abut the corresponding front wheel arches. Alternatively, two heater mounting structures can be installed at the front and rear of a small passenger vehicle, such as an autonomous smart minibus. The front and rear seats can be positioned opposite each other on steps, with the third honeycomb floor connected to form a single unit.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. This invention uses a double-layer floor to form a staircase structure. The heater is installed in the internal space of the staircase. The high-temperature gas of the heater is blown out from the air outlet on the vertical side wall of the staircase. The car seat is installed on the staircase, avoiding the problem of traditional heaters blowing directly on the legs and feet, causing local overheating, and improving passenger comfort.

[0032] 2. The double-layer floor of the present invention can adapt to heaters of different heights by adjusting the step height, and has a wider range of applications;

[0033] 3. The heater of the present invention is no longer installed under the car seat, which increases the space for passengers' legs to move around, and at the same time, the shape and function of the car seat are no longer restricted;

[0034] 4. The installation structure of the double-layer floor of the present invention adopts aluminum alloy and polypropylene honeycomb panels, which achieves lightweight and energy saving and emission reduction while ensuring the supporting strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is an overall schematic diagram of the automobile heater installation structure of the present invention (with the heater installed);

[0036] Figure 2 It is a side view schematic diagram of the automobile heater installation assembly of the present invention (with the heater installed);

[0037] Figure 3 It is a structural schematic diagram of the lower floor of the present invention;

[0038] Figure 4 It is a schematic structural diagram of the footrest support frame of the upper floor of the present invention;

[0039] Figure 5 A schematic diagram of a honeycomb floor of an upper floor of the present invention;

[0040] Figure 6 The figure is a schematic diagram of the installation positions of two automobile heater installation structures of the present invention on an automobile.

[0041] In the figure: 1. Double floor structure; 1.1. Upper floor; 1.10. Air outlet; 1.11. Footrest support frame; 1.12. Honeycomb floor; 1.121. First honeycomb floor; 1.122. Second honeycomb floor; 1.123. Third honeycomb floor; 1.13. Carpet; 1.14. Ventilation hood cover; 1.15. Front support beam; 1.151. Right-angle fan tube; 1.16. Rear support beam; 1.17. Lower support beam; 1.1 8. Vertical support beams; 1.19. Longitudinal support beams; 1.2. Lower floor; 1.21. Heater mounting bracket; 1.22. Lower floor panel; 1.23. Lower floor rear longitudinal beam; 1.231. Step surface; 1.24. Lower floor front crossbeam; 1.25. Lower floor center crossbeam; 1.26. Lower floor rear crossbeam; 1.27. Lower floor front connecting plate; 1.28. Lower floor threshold beam; 1.29. Lower floor front longitudinal beam; 2. Heater. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are intended to fall within the scope of protection of the present invention.

[0043] The terms used in the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a", "an", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise, and "a plurality" generally includes at least two.

[0044] It should be noted that the terms "front", "rear", "inside" and "outside" in the present invention indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0045] It should be noted in particular that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0046] The embodiment provided by the present invention, namely an embodiment of a car heater installation structure and a car, is described below in conjunction with Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 Provide detailed explanation.

[0047] Example 1:

[0048] See Figure 1 、 Figure 2 As shown, a car heater installation structure includes a double-layer floor structure 1, which includes an upper floor 1.1 and a lower floor 1.2. The upper floor 1.1 is a two-level step structure when viewed from the side, and the lower floor 1.2 is approximately an L-shaped structure when viewed from the side. The upper floor 1.1 is fixedly connected to the lower floor 1.2 to form a step structure with a hollow cavity. An air outlet 1.10 is provided on the vertical end surface of the upper floor 1.1, and the lower floor 1.2 includes a heater mounting frame 1.21. The heater mounting frame 1.21 is arranged in the accommodating space formed by the upper floor 1.1 and the lower floor 1.2 and is adjacent to the corresponding air outlet 1.10.

[0049] See Figure 3 As shown, the lower floor 1.2 also includes a lower floor panel 1.22, two lower floor rear longitudinal beams 1.23, a lower floor front cross beam 1.24, a lower floor middle cross beam 1.25, a lower floor rear cross beam 1.26, and a lower floor front connecting plate 1.27. The lower floor panel 1.22 is a rectangular folded plate with horizontal folded edges at both the upper and lower ends and a nearly Z-shaped structure when viewed from the side. The folded edge at the upper end of the lower floor panel 1.22 is fixedly connected to the upper end surface of the lower floor rear cross beam 1.26, and the folded edge at the lower end of the lower floor panel 1.22 is fixedly connected to the middle part of the upper end surface of the lower floor middle cross beam 1.25. Each lower floor rear longitudinal beam 1.23 is provided with a step surface 1.231. The two lower floor rear longitudinal beams 1.23 are divided into The lower floor front connecting plate 1.27 is an L-shaped folding plate. The vertical end face and the horizontal end face of the lower floor front connecting plate 1.27 are matched and fixedly connected to the front end face of the lower floor middle cross beam 1.25 and the upper end face of the lower floor front cross beam 1.24 respectively. There is at least one heater mounting bracket 1.21. Each heater mounting bracket 1.21 is fixedly connected to the lower floor middle cross beam 1.25 and its front end is adjacent to the corresponding air outlet 1.10.

[0050] The upper floor 1.1 includes a footrest support frame 1.11, a honeycomb floor 1.12, a carpet 1.13 and at least one ventilation cover 1.14. The footrest support frame 1.11 is an inverted L-shaped frame and is fixedly connected to the lower floor, and its upper end face is flush with the upper end face of the rear cross beam 1.26 of the lower floor. The honeycomb floor 1.12 is matched and covered and connected to the footrest support frame 1.11 and the lower floor 1.2. At least one air outlet 1.10 is provided on the vertical end face of the front end of the honeycomb floor 1.12. The carpet 1.13 is matched and fixedly connected to the outer end face of the honeycomb floor 1.12. Each ventilation cover 1.14 is evenly distributed with multiple ventilation holes and is matched and snapped onto the corresponding air outlet 1.10.

[0051] See Figure 4 As shown, the pedal support frame 1.11 includes a front support beam 1.15, a rear support beam 1.16, a lower support beam 1.17, a plurality of vertical support beams 1.18 and a plurality of longitudinal support beams 1.19, the front support beam 1.15 and the rear support beam 1.16 are arranged in parallel, and a plurality of longitudinal support beams 1.19 are evenly spaced and fixedly connected between the front support beam 1.15 and the rear support beam 1.16, the front support beam 1.15 and the lower support beam 1.17 are arranged in parallel, and a plurality of vertical support beams 1.18 are evenly spaced and fixedly connected between the front support beam 1.15 and the lower support beam 1.17. The plane formed by the front support beam 1.15 and the rear support beam 1.16 is perpendicular to the plane formed by the front support beam 1.15 and the lower support beam 1.17 to form an inverted L-shaped frame structure. The rear support beam 1.16 is threadedly fixed to the step surface 1.231 of the two lower floor rear longitudinal beams 1.23, and the lower support beam 1.17 is threadedly fixed to the front connecting plate 1.27 of the lower floor.

[0052] See Figure 5 As shown, the honeycomb floor 1.12 includes a first honeycomb floor 1.121, a second honeycomb floor 1.122 and a third honeycomb floor 1.123. The first honeycomb floor 1.121 is matched, bonded and riveted to the upper end surfaces of the front supporting beam 1.15, the longitudinal supporting beam 1.19, the rear supporting beam 1.16 and the rear beam 1.26 of the lower floor. The second honeycomb floor 1.122 is provided with at least one air outlet 1.10, and the ventilation hood cover 1.14 is matched and snapped onto the corresponding air outlet 1.10. The second honeycomb floor 1.122 is matched, bonded and riveted to the vertical outer end surfaces of the front supporting beam 1.15, the vertical supporting beam 1.18 and the lower supporting beam 1.17. The third honeycomb floor 1.123 is matched, bonded and riveted to the upper end surface of the front end of the lower floor.

[0053] A horizontal, right-angled fan-shaped tube 1.151 is provided at the upper front edge of the front support beam 1.15. The adjacent end surfaces of the first and second honeycomb floors 1.121, 1.122 are fixedly connected to the corresponding rectangular end surfaces of the right-angled fan-shaped tube 1.151. The thickness of the first and second honeycomb floors 1.121, 1.122 are respectively the same as the height of the corresponding rectangular end surfaces of the right-angled fan-shaped tube 1.51.

[0054] The lower floor 1.2 also includes two lower floor door sill beams 1.28 and two lower floor front longitudinal beams 1.29. The two lower floor door sill beams 1.28 and the two lower floor front longitudinal beams 1.29 are evenly spaced and vertically fixed to the lower floor front cross beam 1.24. The two lower floor door sill beams 1.28 are respectively located on the left and right sides of the two lower floor front longitudinal beams 1.29. The upper end surfaces of the two lower floor door sill beams 1.28 and the two lower floor front longitudinal beams 1.29 are flush. The third honeycomb floor 1.123 is matched, bonded and riveted to the upper end surfaces of the two lower floor door sill beams 1.28 and the two lower floor front longitudinal beams 1.29.

[0055] The materials of the footrest support frame 1.11 and the lower floor 1.2 are both made of aluminum alloy, and the material of the honeycomb floor 1.12 is a polypropylene honeycomb board.

[0056] Example 2:

[0057] See Figure 1 、 Figure 2 As shown, a car heater installation structure includes a double-layer floor structure 1, which includes an upper floor 1.1 and a lower floor 1.2. The upper floor 1.1 is a two-level step structure when viewed from the side, and the lower floor 1.2 is approximately an L-shaped structure when viewed from the side. The upper floor 1.1 is fixedly connected to the lower floor 1.2 to form a step structure with a hollow cavity. An air outlet 1.10 is provided on the vertical end surface of the upper floor 1.1, and the lower floor 1.2 includes a heater mounting frame 1.21. The heater mounting frame 1.21 is arranged in the accommodating space formed by the upper floor 1.1 and the lower floor 1.2 and is adjacent to the corresponding air outlet 1.10.

[0058] See Figure 3As shown, the lower floor 1.2 also includes a lower floor panel 1.22, two lower floor rear longitudinal beams 1.23, a lower floor front cross beam 1.24, a lower floor middle cross beam 1.25, a lower floor rear cross beam 1.26, and a lower floor front connecting plate 1.27. The lower floor panel 1.22 is a rectangular folded plate with horizontal folded edges at both the upper and lower ends and a nearly Z-shaped structure when viewed from the side. The folded edge at the upper end of the lower floor panel 1.22 is fixedly connected to the upper end surface of the lower floor rear cross beam 1.26, and the folded edge at the lower end of the lower floor panel 1.22 is fixedly connected to the middle part of the upper end surface of the lower floor middle cross beam 1.25. Each lower floor rear longitudinal beam 1.23 is provided with a step surface 1.231. The two lower floor rear longitudinal beams 1.23 are divided into The lower floor front connecting plate 1.27 is an L-shaped folding plate. The vertical end face and the horizontal end face of the lower floor front connecting plate 1.27 are matched and fixedly connected to the front end face of the lower floor middle cross beam 1.25 and the upper end face of the lower floor front cross beam 1.24 respectively. There is at least one heater mounting bracket 1.21. Each heater mounting bracket 1.21 is fixedly connected to the lower floor middle cross beam 1.25 and its front end is adjacent to the corresponding air outlet 1.10.

[0059] The upper floor 1.1 includes a footrest support frame 1.11, a honeycomb floor 1.12, a carpet 1.13 and at least one ventilation cover 1.14. The footrest support frame 1.11 is an inverted L-shaped frame and is fixedly connected to the lower floor, and its upper end face is flush with the upper end face of the rear cross beam 1.26 of the lower floor. The honeycomb floor 1.12 is matched and covered and connected to the footrest support frame 1.11 and the lower floor 1.2. At least one air outlet 1.10 is provided on the vertical end face of the front end of the honeycomb floor 1.12. The carpet 1.13 is matched and fixedly connected to the outer end face of the honeycomb floor 1.12. Each ventilation cover 1.14 is evenly distributed with multiple ventilation holes and is matched and snapped onto the corresponding air outlet 1.10.

[0060] See Figure 4As shown, the pedal support frame 1.11 includes a front support beam 1.15, a rear support beam 1.16, a lower support beam 1.17, a plurality of vertical support beams 1.18 and a plurality of longitudinal support beams 1.19, the front support beam 1.15 and the rear support beam 1.16 are arranged in parallel, and a plurality of longitudinal support beams 1.19 are evenly spaced and fixedly connected between the front support beam 1.15 and the rear support beam 1.16, the front support beam 1.15 and the lower support beam 1.17 are arranged in parallel, and a plurality of vertical support beams 1.18 are evenly spaced and fixedly connected between the front support beam 1.15 and the lower support beam 1.17. The plane formed by the front support beam 1.15 and the rear support beam 1.16 is perpendicular to the plane formed by the front support beam 1.15 and the lower support beam 1.17 to form an inverted L-shaped frame structure. The rear support beam 1.16 is threadedly fixed to the step surface 1.231 of the two lower floor rear longitudinal beams 1.23, and the lower support beam 1.17 is threadedly fixed to the front connecting plate 1.27 of the lower floor.

[0061] See Figure 5 As shown, the honeycomb floor 1.12 includes a first honeycomb floor 1.121, a second honeycomb floor 1.122 and a third honeycomb floor 1.123. The first honeycomb floor 1.121 is matched, bonded and riveted to the upper end surfaces of the front supporting beam 1.15, the longitudinal supporting beam 1.19, the rear supporting beam 1.16 and the rear beam 1.26 of the lower floor. The second honeycomb floor 1.122 is provided with at least one air outlet 1.10, and the ventilation hood cover 1.14 is matched and snapped onto the corresponding air outlet 1.10. The second honeycomb floor 1.122 is matched, bonded and riveted to the vertical outer end surfaces of the front supporting beam 1.15, the vertical supporting beam 1.18 and the lower supporting beam 1.17. The third honeycomb floor 1.123 is matched, bonded and riveted to the upper end surface of the front end of the lower floor.

[0062] A horizontal, right-angled fan-shaped tube 1.151 is provided at the upper front edge of the front support beam 1.15. The adjacent end surfaces of the first and second honeycomb floors 1.121, 1.122 are fixedly connected to the corresponding rectangular end surfaces of the right-angled fan-shaped tube 1.151. The thickness of the first and second honeycomb floors 1.121, 1.122 are respectively the same as the height of the corresponding rectangular end surfaces of the right-angled fan-shaped tube 1.51.

[0063] The lower floor 1.2 also includes two lower floor door sill beams 1.28 and two lower floor front longitudinal beams 1.29. The two lower floor door sill beams 1.28 and the two lower floor front longitudinal beams 1.29 are evenly spaced and vertically fixed to the lower floor front cross beam 1.24. The two lower floor door sill beams 1.28 are respectively located on the left and right sides of the two lower floor front longitudinal beams 1.29. The upper end surfaces of the two lower floor door sill beams 1.28 and the two lower floor front longitudinal beams 1.29 are flush. The third honeycomb floor 1.123 is matched, bonded and riveted to the upper end surfaces of the two lower floor door sill beams 1.28 and the two lower floor front longitudinal beams 1.29.

[0064] The materials of the footrest support frame 1.11 and the lower floor 1.2 are both made of aluminum alloy, and the material of the honeycomb floor 1.12 is a polypropylene honeycomb board.

[0065] There are two double-layer floor structures 1 and they are arranged opposite to each other. The lower floor sill beams 1.28, the lower floor front longitudinal beams 1.29 and the third honeycomb floor 1.123 of the two double-layer floor structures 1 are connected to form an integrated structure.

[0066] See Figure 6 As shown, in this embodiment, taking an unmanned smart minibus as an example, two heater mounting structures are installed at the front and rear ends of the minibus, facing each other. The shape of the lower floor matches the shape of the corresponding vehicle accessories. The rear longitudinal beam of the lower floor mounted at the rear end of the vehicle matches the adjacent rear tire cover, while the rear longitudinal beam of the lower floor mounted at the front end matches the adjacent front tire cover. A third honeycomb floor panel is connected to form a single floor structure, with accessories such as the subframe and motor mounted underneath. The vehicle seats are mounted opposite each other on the first honeycomb floor panel 1.121 of the two heater mounting structures, i.e., on the steps. Hot air from the heater 2 is blown into the vehicle interior through the vent hood cover 1.14 on the air outlet 1.10 of the second honeycomb floor panel 1.122, i.e., out through the air outlet 1.10 on the side walls of the steps, preventing direct airflow to the passengers' legs and feet.

[0067] Example 3:

[0068] The present invention also provides an automobile, comprising the above-described automobile heater mounting structure, a heater 2, a body-in-white (BIW) and an automobile seat, wherein the heater 2 is threadedly fixed to a heater mounting frame 1.21 and its air supply port is adjacent to an air outlet 1.10, a double-layer floor structure 1 is threadedly fixed to the body-in-white, a lower floor rear longitudinal beam 1.23 is adjacent to a corresponding wheel cover, and the automobile seat is fixedly connected to the first honeycomb floor 1.121.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A car heater installation structure, characterized in that: The invention comprises a double-layer floor structure (1), wherein the double-layer floor structure (1) comprises an upper floor (1.1) and a lower floor (1.2), wherein the upper floor (1.1) is a two-stage step structure when viewed from the side, and the lower floor (1.2) is approximately an L-shaped structure when viewed from the side, and the upper floor (1.1) is fixedly connected to the lower floor (1.2) to form a step structure with a hollow cavity, and an air outlet (1.10) is provided on the vertical end face of the upper floor (1.1), and the lower floor (1.2) comprises a heater mounting frame (1.21), and the heater mounting frame (1.21) is arranged in the accommodation space formed by the upper floor (1.1) and the lower floor (1.2) and is adjacent to the corresponding air outlet (1.10), and the lower floor (1.2) is provided with a heater mounting frame (1.21). The floor (1.2) further comprises a lower floor panel (1.22), two lower floor rear longitudinal beams (1.23), a lower floor front cross beam (1.24), a lower floor middle cross beam (1.25), a lower floor rear cross beam (1.26) and a lower floor front connecting plate (1.27). The lower floor panel (1.22) is a rectangular folded plate having horizontal folding edges at both the upper and lower ends and forming an approximately Z-shaped structure when viewed from the side. The folding edge at the upper end of the lower floor panel (1.22) is fixedly connected to the upper end surface of the lower floor rear cross beam (1.26), and the folding edge at the lower end of the lower floor panel (1.22) is fixedly connected to the middle part of the upper end surface of the lower floor middle cross beam (1.25). Each of the lower floor rear longitudinal beams (1.23) is provided with a platform. The step surface (1.231), the two lower floor rear longitudinal beams (1.23) are respectively symmetrically fixedly connected to the left and right ends of the lower floor plate surface (1.22) and the front lower end faces thereof are respectively fixedly connected to the rear end faces on the left and right sides of the lower middle cross beam, the rear upper end faces of the two lower floor rear longitudinal beams (1.23) are flush with the upper end face of the lower floor rear cross beam (1.26), the lower floor front connecting plate (1.27) is an L-shaped folded plate, the vertical end face and the horizontal end face of the lower floor front connecting plate (1.27) are respectively matched and fixedly connected to the front end face of the lower floor middle cross beam (1.25) and the upper end face of the lower floor front cross beam (1.24), the number of the heater mounting frame (1.21) is at least one, and each of the The heater mounting frame (1.21) is fixedly connected to the middle crossbeam (1.25) of the lower floor and its front end is adjacent to the corresponding air outlet (1.10); the upper floor (1.1) comprises a footrest support frame (1.11), a honeycomb floor (1.12), a carpet (1.13) and at least one ventilation cover (1.14); the footrest support frame (1.11) is an inverted L-shaped frame and is fixedly connected to the lower floor and its upper end face is flush with the upper end face of the rear crossbeam (1.26) of the lower floor; the honeycomb floor (1.12) is matched and covered and connected to the footrest support frame (1.11) and the lower floor (1.2); and at least one air outlet (1.10) is provided on the vertical end face of the front end of the honeycomb floor (1.12).10), the carpet (1.13) is matched and fixedly connected to the outer end surface of the honeycomb floor (1.12), and each ventilation cover (1.14) is evenly distributed with multiple ventilation holes and matched and snap-fitted to the corresponding air outlet (1.10).

2. The automobile heater installation structure according to claim 1, characterized in that: The pedal support frame (1.11) comprises a front support crossbeam (1.15), a rear support crossbeam (1.16), a lower support crossbeam (1.17), a plurality of vertical support beams (1.18) and a plurality of longitudinal support beams (1.19); the front support crossbeam (1.15) and the rear support crossbeam (1.16) are arranged in parallel; the plurality of longitudinal support beams (1.19) are evenly spaced and fixedly connected between the front support crossbeam (1.15) and the rear support crossbeam (1.16); the front support crossbeam (1.15) and the lower support crossbeam (1.17) are arranged in parallel; the plurality of vertical support beams (1.18) and the rear support crossbeam (1.16) are arranged in parallel; Beams (1.18) are evenly spaced and fixedly connected between the front support beam (1.15) and the lower support beam (1.17); a plane formed by the front support beam (1.15) and the rear support beam (1.16) is perpendicular to a plane formed by the front support beam (1.15) and the lower support beam (1.17) to form an inverted L-shaped frame structure; the rear support beam (1.16) is threadedly fixed to the step surfaces (1.231) of the two lower floor rear longitudinal beams (1.23); and the lower support beam (1.17) is threadedly fixed to the lower floor front connecting plate (1.27).

3. The automobile heater installation structure according to claim 2, characterized in that: The honeycomb floor (1.12) comprises a first honeycomb floor (1.121), a second honeycomb floor (1.122) and a third honeycomb floor (1.123); the first honeycomb floor (1.121) is matched, bonded and riveted to the upper end surfaces of the front support beam (1.15), the longitudinal support beam (1.19), the rear support beam (1.16) and the rear beam (1.26) of the lower floor; the second honeycomb floor (1.122) is provided with at least one air outlet (1.10); the ventilation hood (1.14) is matched and snapped onto the corresponding air outlet (1.10); the second honeycomb floor (1.122) is matched, bonded and riveted to the vertical outer end surfaces of the front support beam (1.15), the vertical support beam (1.18) and the lower support beam (1.17); and the third honeycomb floor (1.123) is matched, bonded and riveted to the upper end surface of the front end of the lower floor.

4. The automobile heater installation structure according to claim 3, characterized in that: A horizontal right-angled fan-shaped tube (1.151) is provided at the upper edge of the front end of the front supporting crossbeam (1.15); the adjacent end faces of the first honeycomb floor (1.121) and the second honeycomb floor (1.122) are respectively fixedly connected to the rectangular end faces corresponding to the right-angled fan-shaped tube (1.151); and the thickness of the first honeycomb floor (1.121) and the second honeycomb floor (1.122) are respectively the same as the height of the rectangular end faces corresponding to the right-angled fan-shaped tube (1.51).

5. The automobile heater installation structure according to claim 4, characterized in that: The lower floor (1.2) further comprises two lower floor threshold beams (1.28) and two lower floor front longitudinal beams (1.29). The two lower floor threshold beams (1.28) and the two lower floor front longitudinal beams (1.29) are evenly spaced and vertically fixedly connected to the lower floor front cross beam (1.24). The two lower floor threshold beams (1.28) are respectively located on the left and right sides of the two lower floor front longitudinal beams (1.29). The upper end surfaces of the two lower floor threshold beams (1.28) and the two lower floor front longitudinal beams (1.29) are flush. The third honeycomb floor (1.123) is matched, bonded and riveted to the upper end surfaces of the two lower floor threshold beams (1.28) and the two lower floor front longitudinal beams (1.29).

6. The automobile heater installation structure according to claim 5, characterized in that: The materials of the footrest support frame (1.11) and the lower floor (1.2) are both aluminum alloy, and the material of the honeycomb floor (1.12) is polypropylene honeycomb board.

7. The automobile heater installation structure according to claim 6, characterized in that: The double-layer floor structures (1) are two in number and are arranged opposite to each other. The lower floor sill beams (1.28), the lower floor front longitudinal beams (1.29) and the third honeycomb floor (1.123) of the two double-layer floor structures (1) are respectively connected to form an integrated structure.

8. An automobile, characterized in that: The invention comprises an automobile heater installation structure as described in any one of claims 1 to 7, and also comprises a heater (2), a body-in-white and an automobile seat, wherein the heater (2) is threadedly fixed to the heater installation frame (1.21) and its air supply port is adjacent to the air outlet (1.10), the double-layer floor structure (1) is threadedly fixed to the body-in-white, the rear longitudinal beam (1.23) of the lower floor is adjacent to the corresponding wheel cover, and the automobile seat is fixedly connected to the first honeycomb floor (1.121).

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