Interior trimming panel with electric heating function for urban rail vehicle

Abstract

The invention discloses an interior trim panel with an electric heating function for an urban rail vehicle. The interior trim panel comprises a bottom plate, an interior trim panel frame, an electric heating plate and an outer cover plate. The trim panel frame is formed by connecting alloy profiles, the cross section of each profile is of an I-shaped structure, and each profile comprises grooves in the two sides of the profile and a middle cavity clamped between the grooves in the two sides. The bottom plate is fixedly connected with a profile on one side, far away from the middle cavity, of the interior trimming panel frame to form a bottom surface of the interior trimming panel; the electric heating plates are inserted and fixed into grooves in the two sides of the profile of the interior trimming panel frame; the side, close to the middle cavity of the interior trim panel frame, of the outer cover plate is fixedly connected to the interior trim panel frame and covers the electric heating plate. Wherein the outer cover plate is communicated with the interior of the carriage. According to the interior trim panel with the electric heating function, an electric heater under a seat in the prior art is replaced by the whole vehicle interior trim panel, and the problem that the number of the electric heaters is limited by the number of seats and space is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and more particularly to an interior decoration panel with an electric heating function for urban rail vehicles. Background Art

[0002] At present, electric heaters in urban rail vehicles are mainly installed under seats and in the boxes of interior panels. Due to the number of seats in the passenger compartment, the space under the seats occupied by fire extinguishers, electrical boxes and cut-off plug boxes installed under the seats, and the limited space between the interior panels and the car body, the number of electric heaters that can be arranged in urban rail vehicles is limited. Therefore, the heating capacity of electric heaters is limited. In addition, the frequent opening of train doors causes cold air from outside the car to flow into the passenger compartment in winter, causing the hot air in the car to be lost. Insufficient heating and cold air intrusion in the car will reduce the riding comfort of passengers and drivers.

[0003] Specifically, electric heaters in urban rail vehicles are mainly hung under the seats in the passenger compartment. In addition to electric heaters, fire extinguishers are also hung under the seats in the passenger compartment. The electric heater is installed under the seat frame with bolts and nuts. At the same time, the electric heater is provided with a mask and fixed to the back plate with screws. Some line vehicles are equipped with electric heaters between the end wall interior and the vehicle body, the interior cover surrounds the electric heater, and heat dissipation holes are opened on the interior skirting board.

[0004] The disadvantages of the above-mentioned prior art are: (1) The space under the seat where the electric heater can be placed is limited, and there is no more space in the car to increase the number of electric heating equipment to improve the heating effect. In particular, as unmanned trains become more and more popular, the space under the seat is completely occupied by electrical equipment boxes; (2) When disassembling and installing the electric heater under the seat, the operator needs to lie on the ground, drill into the seat to disassemble or install the lower handle to disassemble and install the fasteners, which is extremely inconvenient. In addition, if you want to install or maintain the electric heater, you must first open the mask and remove several screws on the mask, which is time-consuming and laborious. (3) The electric heaters in existing urban rail projects are mainly heated by air convection. The heating time of the convection method is relatively long. After the door is opened, the temperature in the car drops and the temperature rises slowly; (4) The current mainstream electric heater heating element of urban rail vehicles is a wound-plate electric heating tube. Vehicles in cold areas use high-power electric heating tubes, and the surface temperature of the tube must be nearly several hundred degrees Celsius to maintain normal room temperature. The over-temperature protector that detects the surface temperature of the tube is easily triggered and blown, causing the electric heater to stop working and the car to be cold; (5) After the electric heater is installed between the interior and the car body, the size of the interior is increased, encroaching on more passenger activity space in the car; (6) The folding canopy frame of the through-passage is close to the end wall skin. After the electric heater is installed on the end wall, it will work for a long time in winter. Heat is easy to accumulate in the interior and conduct heat to the folding canopy frame and shed cloth through the metal skin of the end wall. High temperature will accelerate the thermal aging of the sealing strip and shed cloth, which may cause the shed cloth to crack or even break prematurely, shortening the service life of the folding canopy frame and shed cloth.

[0005] Therefore, there is a need for a heater applied to urban rail vehicles, which can overcome the above-mentioned shortcomings of the prior art. Summary of the invention

[0006] Based on this, in order to solve the above-mentioned deficiencies in the prior art, an interior trim panel with electric heating function for urban rail vehicles is provided.

[0007] Based on the above purpose, the following technical solutions are adopted: The present invention provides an interior trim panel with electric heating function for urban rail vehicles, comprising: Base plate; The interior panel frame is formed by connecting alloy profiles, the cross section of the profile is an "I"-shaped structure and includes grooves on both sides of the profile and a middle cavity sandwiched between the grooves on both sides; the bottom plate is fixedly connected to the profile on one side of the interior panel frame away from the middle cavity to form the bottom surface of the interior panel; An electric heating plate, the electric heating plate is inserted into grooves on both sides of the profile fixed to the interior trim panel frame; An outer cover plate is fixedly connected to the interior panel frame at one side of the outer cover plate adjacent to the middle cavity of the interior panel frame and covers the electric heating plate; wherein the outer cover plate is communicated with the interior of the vehicle compartment.

[0008] In some embodiments, the electric heating plate comprises a conductive material and a flexible insulating substrate, wherein the conductive material is compounded to the flexible insulating substrate and is irregularly distributed in the flexible insulating substrate; the conductive material comprises a carbon-based material and an electrode; Wherein, the overall shape of the electric heating plate is a plane or a curved surface.

[0009] In some embodiments, a thin film pressure sensitive sensor is disposed between the outer cover plate and the electric heating plate, and the thin film pressure sensitive sensor is fixed to the electric heating plate.

[0010] In some embodiments, the thin film pressure sensitive sensor is configured as: When the outer cover plate is not pressed, it is in a disconnected state and does not work; When the outer cover plate is pressed, it is in an on state and automatically transmits a resistance signal to an external thermostat, so that the thermostat sends a cooling signal to the electric heating plate corresponding to the pressed area and cools it down to below 40°C; When the pressing pressure on the outer cover plate disappears, it is in a disconnected state, so that the electric heating plate at the corresponding position returns to the rated heating temperature.

[0011] In some embodiments, a heat insulating material is disposed between the electric heating plate and the bottom plate to prevent heat from being transferred to the bottom plate.

[0012] In some embodiments, a plurality of fixing blocks are spaced apart in the middle cavity of the interior trim panel frame, and fixing members are inserted through the outer cover panel into the fixing blocks for connection, so that the outer cover panel is fixedly connected to the interior trim panel frame.

[0013] In some embodiments, the interior trim panel also includes a terminal block, which is clamped between the outer cover panel and the insulation material and is electrically connected to the electric heating plate; the wires extending from the terminal block extend from a through hole opened on one side of the bottom plate of the interior trim panel and are connected to an external temperature control device, thereby facilitating electrical wiring between the interior trim panel and the vehicle body structure.

[0014] In some embodiments, the interior trim panel frame further includes an advertising frame, which is composed of alloy profiles, the cross-section of the profile is an "I"-shaped structure and includes grooves on both sides of the profile and a middle cavity sandwiched between the grooves on both sides.

[0015] In some embodiments, the interior trim panel also includes a mounting piece, which passes through the profile of the middle cavity of the advertising frame to fix the advertising frame to the vehicle body structure; a hinge and a flap are provided at one end of the outer cover panel of the interior trim panel near the middle cavity of the advertising frame, and the flap can be flipped around the folding axis on the frame to cover the mounting piece and fix the advertising page.

[0016] In some embodiments, through holes passing through the interior panel frame and the bottom plate are also arranged at intervals in the middle cavity of the interior panel frame. The through holes are used to place mounting screws, and the interior panel is connected to the vehicle body structure through the mounting screws.

[0017] The present invention also provides an urban rail vehicle, comprising the interior trim panel with electric heating function as described above.

[0018] The present invention has the following beneficial technical effects: The interior panel with electric heating function for urban rail vehicles of the present invention broadens the design concept of heating in urban rail vehicles, and replaces the electric heater under the seat in the prior art with the interior panel of the whole vehicle, solving the problem that the number of electric heaters is limited by the number of seats and space. The interior surface of the whole vehicle can be used as vehicle heating equipment, or used locally, which is flexible and not restricted by space, and realizes the integrated design of equipment integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only some implementation cases of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1A schematic diagram of the arrangement of the interior trim panel with electric heating function in an urban rail vehicle according to the present invention; Figure 2 It is a cross-sectional schematic diagram of an interior trim panel with electric heating function of the present invention; Figure 3 A schematic cross-sectional view of an interior trim panel with an electric heating function according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of the cross connection joint of the interior trim panel frame profile of an embodiment of the present invention; Figure 5 This is a schematic diagram of the connection structure of the advertising frame profile according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the connection joint structure of an advertisement frame according to an embodiment of the present invention (the flap and hinge are not shown); Figure 7 This is a schematic diagram of the structure of the L-shaped patch fixing portion of the advertising frame according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the advertising frame in the flip open state according to an embodiment of the present invention; Fig. 9 This is a schematic diagram of the closed state of the flip cover of the advertising frame according to an embodiment of the present invention; Fig.10 It is an enlarged schematic diagram of a fixing method of an outer cover plate around an advertisement frame according to an embodiment of the present invention.

[0021] List of reference numerals: 1. Bottom plate; 2. Interior panel frame; 3. Electric heating plate; 4. Outer cover plate; 5. Thin film pressure sensitive sensor; 6. Heat insulation material; 7. Terminal block; 8. Groove; 9. Middle cavity; 101, outer cover plate; 102, electric heating plate; 103, heat insulation material; 104, vehicle body structure; 105, second frame profile; 106, screws; 107, sealing gasket; 108, thread block; 109, third advertising frame profile; 1010, screws; 1011, first frame profile; 1012, terminal block; 1013, bottom plate; 201, screw; 202, L-shaped patch plate; 203, mounting hole; 204, thread block; 301, flap; 302, fold DETAILED DESCRIPTION The following is a further detailed description of the embodiments of the present disclosure in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0022] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0023] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] In addition, the words "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0025] It should also be noted that in the description of the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0026] All terms used in the present disclosure have the same meanings as those understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, for example, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined as such herein.

[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0028] The present invention aims to solve the following technical problems: (1) Solve the problem of insufficient heating in urban rail vehicles in winter due to the limited space under the seats, which limits the number of electric heating devices. In some cases, electric heating devices cannot be installed under the seats. Electric heating devices need to be installed in other parts of the vehicle. (2) Solve the problem of electric heating devices occupying space in the car and the aesthetics; (3) Solve the problem that the heating of electric heating devices affects the life of other equipment; (4) Solve the problem of time-consuming and labor-intensive disassembly and assembly of electric heating devices.

[0029] Based on the above purpose, a first aspect of the embodiment of the present invention is as follows: Figure 1-2 The overall structure of the interior panel with electric heating function for urban rail vehicles and the exemplary compartment layout are shown. Figure 1 It can be seen that the interior panels with electric heating function can be distributed in the driver's cab and passenger compartment of urban rail vehicles. In the passenger compartment, they can be distributed to the middle roof, side roof, side wall, advertising frame, door pillar cover and other positions.

[0030] The interior panel is an integral panel heat dissipation form, mainly composed of a bottom plate 1, an interior panel frame 2, an electric heating plate 3, an outer cover plate 4, a heat insulation material 6, a thin film pressure sensitive sensor 5, a terminal block 7, a thermostat, wires and an advertising frame. The overall thickness of the interior panel does not exceed 2 cm, which is very thin and light.

[0031] The interior panel frame 2 is formed by connecting alloy profiles. The cross section of the profile is an "I"-shaped structure and includes grooves 8 on both sides of the profile and a middle cavity 9 sandwiched between the grooves 8 on both sides. The bottom plate 1 is fixedly connected to the profile of the side of the interior panel frame 2 away from the middle cavity 9 to form the bottom surface of the interior panel. Specifically, the bottom plate 1 is made of aluminum alloy, and the overall frame of the interior panel is welded with aluminum alloy profiles. The bottom plate 1 and the interior panel frame 2 are connected as a whole by welding. After welding, the weld feet on the back of the interior panel are ground flat for easy installation.

[0032] The electric heating plate 3 is inserted into the grooves 8 on both sides of the profile fixed to the interior panel frame 2; The outer cover plate 4 is fixedly connected to the interior panel frame 2 at one side of the middle cavity 9 adjacent to the interior panel frame 2 and covers the electric heating plate 3; wherein the outer cover plate 4 is connected to the space inside the vehicle compartment. The outer cover plate 4 is arranged on the upper surface of the electric heating interior panel to isolate and protect it. The outer cover plate 4 is made of resin material, which is insulating, heat-resistant and not easy to deform. It is transparent and colorless or color-changing, and the color and shape are coordinated with the overall effect of the interior. The thickness of the outer cover plate 4 is 1mm-3mm.

[0033] The electric heating plate 3 includes a conductive material and a flexible insulating substrate, the conductive material is compounded to the flexible insulating substrate and is irregularly distributed in the flexible insulating substrate; the conductive material includes a carbon-based material and an electrode. The flexible insulating substrate can preferably be a flexible resin substrate with good insulating properties. When the electric heating plate 3 is powered on, the current flows through the electrode to the substrate. The tiny conductive materials overlap each other or are spaced a small distance apart. Under the action of an external electric field, the current is transmitted from a high potential to a low potential along the overlapping tissue. On the other hand, the electrons activated by thermal vibrations penetrate the substrate through the tunnel effect and jump to the adjacent particles to form a tunnel current. The above two effects are the conductive principles of the electric heating plate. The molecules of the conductive material generate heat energy due to severe friction, collision and vibration, and the heat energy is transmitted to the interior of the vehicle in the form of far infrared rays to achieve a rapid heating effect. Figure 2 The electric heating plate 3 shown in the figure is an overall flat shape, but because the resin substrate of the electric heating plate 3 has flexible anti-bending ability and can adapt to the curved interior shape, the electric heating plate 3 can adapt to the layout of various positions on the vehicle and is not limited by the curvature of the curved surface at the position. An electric heating plate is installed in a frame cell. The power range of a single electric heating plate is 100W-800W, and the total power is determined according to the heating needs of the train. Electric heating plates of different powers can be used in different areas of the car, that is, electric heating plates of the same or different powers can be configured in different interior areas. The power of the door pillar cover and the side wall position near the door area can be greater than that of the seat area, and the power of the area near the ground can be greater than that of the side top and middle top area. The rated voltage of the electric heating plate is 380V or 220V or 110V. Therefore, the interior panel can be applied to the interior area of ​​the vehicle on a large scale, or it can be applied locally to specific areas, such as the door pillar cover.

[0034] The area of ​​the electrically heated interior panel that is easily touched by the occupants of the vehicle has a pressure-sensitive temperature-changing function. Therefore, a thin film pressure-sensitive sensor 5 is provided between the outer cover panel 4 and the electric heating plate 3, and the thin film pressure-sensitive sensor 5 is fixed to the electric heating plate 3. The thickness of the thin film pressure-sensitive sensor 5 is within 1 mm, and it can continuously work at a temperature below 100°C. The back of the thin film pressure-sensitive sensor 5 is bonded to the electric heating plate 3 with a high temperature resistant tape. There is a gap of less than 5 mm between the thin film pressure-sensitive sensor 5 and the outer cover panel 4.

[0035] The control process of the thin film pressure sensitive sensor 5 on the temperature of the interior trim panel is as follows: When the outer cover plate 4 is not pressed, the thin film pressure-sensitive sensor 5 is in a disconnected state and does not work; When the outer cover plate 4 is pressed, the thin film pressure-sensitive sensor 5 is in the on state and automatically transmits a resistance signal to the external thermostat. The thermostat sends a cooling signal to the electric heating plate 3 corresponding to the pressed area and cools it down to below 40°C; when the pressing pressure on the outer cover plate 4 disappears, the thin film pressure-sensitive sensor 5 is in the off state, and the electric heating plate 3 at the corresponding position will return to the rated heating temperature.

[0036] A heat insulating material 6 is provided between the electric heating plate 3 and the bottom plate 1 to prevent heat from being transferred to the bottom plate 1. The heat insulating material 6 is a fiber or foam material with low thermal conductivity, and has a thickness ranging from 0.5 mm to 5 mm.

[0037] A plurality of fixing blocks are arranged at intervals in the middle cavity 9 of the interior trim panel frame 2 , and the fixing members pass through the outer cover panel 4 and are inserted into the fixing blocks for connection, so that the outer cover panel 4 is fixedly connected to the interior trim panel frame 2 .

[0038] The interior trim panel also includes a terminal row 7, which is sandwiched between the outer cover panel 4 and the insulation material 6 and is electrically connected to the electric heating plate 3; the wires extending from the terminal row 7 extend from the through hole opened on one side of the bottom plate 1 of the interior trim panel and are connected to the external temperature control device, which is convenient for electrical wiring between the interior trim panel and the body structure. The terminal row 7 is sandwiched between the outer cover panel 4 and the insulation material 6, and keeps both sides of the interior trim panel flat without protrusions. The terminal row 7 controls the surface temperature of the electric heating plate 3 to be maintained between 30℃ and 80℃. The wires extend from the through hole opened on the back of the interior trim panel and are connected to the temperature control device, which is convenient for electrical wiring between the interior trim panel and the body structure.

[0039] The electric heating interior panel works in conjunction with the temperature sensor installed in the vehicle. The temperature control of the electric heating interior panel is divided into two types: the centralized control mode for the entire passenger compartment and the local control mode for each compartment. The centralized control mode is divided into the centralized control fixed frequency mode and the centralized control variable frequency mode. The centralized control mode is also divided into the manual mode and the automatic mode. The local control mode is divided into the local control fixed frequency mode and the local control variable frequency mode. The electric heating interior panel in the driver's cab adopts the local control mode and is only affected by the temperature sensor in the head driver's cab.

[0040] In the manual centralized control mode, the driver observes the status of the temperature sensor on the console display and manually adjusts the electric heating interior panels of the entire train.

[0041] In the automatic centralized control mode, the electric heating interior panels of the entire train passenger compartment are automatically controlled by temperature sensors at the same time. Depending on the train formation, 1-8 carriages are selected to arrange temperature sensors. When more than two temperature sensors in the train simultaneously detect that the air temperature in the car exceeds the preset value, the electric heating interior panels of the entire train are cooled down or powered off at the same time. When all temperature sensors detect that the room temperature has returned to above the preset value, the electric heating interior panels of the entire train are heated up or powered on.

[0042] In this control mode, 1-4 temperature sensors are set in each car to detect the temperature of the car. If 1 sensor is set in each car, when the sensor in a car detects that the room temperature exceeds the preset value, the electric heating interior panels in the car will be cooled down or powered off at the same time, and the electric heating interior panels in other cars will not be affected. When the temperature sensor detects that the room temperature has returned to above the preset value, the electric heating interior panels in the car will be heated up again or powered on. If more than 2 sensors are set in each car, when more than 2 sensors in a car detect that the room temperature exceeds the preset value at the same time, the electric heating interior panels in the car will be cooled down or powered off at the same time. When all temperature sensors detect that the room temperature has returned to above the preset value, the electric heating interior panels in the car will be heated up again or powered on. The electric heating interior panels in other cars will not be affected.

[0043] The power of the electric heating interior panel in the fixed frequency mode is constant, and the heating is controlled by turning on and off the current to adjust the room temperature. The variable frequency mode is stepless variable frequency, and the power of the electric heating interior panel is controlled by the variable frequency thermostat to adjust the room temperature. In the variable frequency mode, the power variation range of the interior panel is ±5% to ±80% of the rated power.

[0044] An advertising frame is also installed on the side of the interior panel close to the interior of the car. The electric heating interior panel can be provided with an advertising frame in the visible area of ​​the passenger. The integrated design of the advertising frame and the electric heating interior panel does not need to be installed separately, that is, the advertising frame profile is welded on the interior panel frame 2 according to the size of the advertising frame. The advertising frame is composed of alloy profiles, the cross-section of the profile is an "I"-shaped structure and includes grooves on both sides of the profile and an intermediate cavity sandwiched between the grooves on both sides. The advertising frame is fixed to the vehicle body structure by using the profile of the intermediate cavity of the advertising frame and the profile of the intermediate cavity of the interior panel frame 2 and the bottom plate 1 through the mounting piece; the folding leaf and the flap are provided at the mounting piece of the advertising frame, so that the flap can be flipped around the folding leaf axis on the frame to cover the mounting piece. The advertising frame is fixed to the beam column of the vehicle body by a number of screws around. Preferably, the advertising frame is composed of aluminum alloy profiles and occupies almost no space in the passenger compartment. There is a metal fold inside the advertising frame, and the advertising paper is placed on the surface of the designated outer cover plate by opening and closing the flap. The installation position of the advertising frame is arranged on the side wall interior panel, side roof interior panel or end wall interior panel, etc. depending on the artistic effect.

[0045] Through holes penetrating the interior panel frame 2 and the bottom plate 1 are also arranged at intervals in the middle cavity of the interior panel frame 2. The through holes are used to place mounting screws, and the interior panel is connected to the vehicle body structure through the mounting screws.

[0046] Figure 3-Figure 10 A specific embodiment of the above solution is shown. The electric heating interior panel is installed on the vehicle body structure 104 from the inside of the vehicle, and is suitable for any place in the vehicle that can be heated and decorated.

[0047] Figure 3 Three main frame profiles for electrically heated interior panels are shown.

[0048] The first frame profile is the main profile of the interior trim panel, and its cross section is an "I"-shaped hollow structure. The grooves on both sides of the profile are used to fix the electric heating plate 102. Through holes are set at a certain distance at the bottom of the profile cavity for placing screws 1010. The first frame profile is used to connect the electric heating interior trim panel to the vehicle body structure 104 through the screws 1010.

[0049] The second frame profile 105 is based on the first frame profile 1011, and a plurality of thread blocks 108 are arranged in the middle cavity, which are used to cooperate with the screws 106 to fix the outer cover plate 101. The thread blocks are connected to the frame profile by welding or bonding. The upper surface of the thread blocks is flush with the upper surface of the profile cavity, and the thread depth is ensured to be sufficient for the screw to be completely screwed into it. The third advertising frame profile 109 is formed by raising the cavity on the basis of the first frame profile 1011, and the heights on both sides are different. A hinge and a flap are arranged at the edge of the profile cavity, and a space is reserved for opening the flap.

[0050] The above three profiles are welded to form an electric heating interior panel frame, and the back of the frame is welded to the bottom plate 1013. The back of the profile is flush with the back of the bottom plate, and the residual weld is smoothed after welding to avoid affecting the flatness of the interior panel installed on the body structure 104. The length, distance and installation position of the profile are adjusted according to the size of the body structure 104.

[0051] The heat-insulating material 103 is laid on the surface of the bottom plate 1013, and the electric heating plate 102 is laid on the heat-insulating material 103. The electric heating plate 102 is fixed by inserting the first frame profile 1011, the second frame profile 105 and the third advertising frame profile 109. An electric heating plate 102 is laid in a rectangular profile frame. The outer cover plate 101 covers the surface of the electric heating plate 102 and the second frame profile 105 and the first frame profile 1011. The terminal row 1012 is sandwiched between the heat-insulating material 103 and the outer cover plate 101, and is insulated. The heat-insulating material 103 and the bottom plate on the back of the terminal row 7 are provided with through holes, and the wires of the terminal row 7 extend from the holes to facilitate electrical wiring.

[0052] like Figure 4 As shown, the interior trim panel frame 2 of the main body is arranged horizontally and vertically, and the upper and lower bosses on the ends of the profiles arranged horizontally at the cross joints are removed in advance, leaving only the portion that can be inserted into the grooves on both sides of the profiles, to ensure that the "I"-shaped bosses retained by the profiles arranged horizontally can be butt-welded with the "I"-shaped bosses of the profiles arranged vertically, and to ensure that the ends of the hollow profiles of the profiles arranged horizontally can be butt-welded with the outer sides of the hollow profiles of the profiles arranged vertically.

[0053] Regarding the third advertising frame profile 109, Figure 5-9 An exemplary structure is shown.

[0054] like Figure 5 As shown, first, the connection between the two profiles of the advertising frame is beveled 45°, and the two adjacent 45° cut surfaces are butt welded to form a right-angle frame angle. Before welding, the protruding profile part on the outer side of the advertising frame surface is cut off to make the two protruding parts on the top flush.

[0055] like Figure 6 As shown, an L-shaped patch plate 202 is placed on the upper surface of the cut frame corner. The L-shaped patch plate 202 has two oblong holes. Two screws 201 are passed through the oblong holes of the L-shaped patch plate 202 and screwed into the L-shaped patch plate 202. Figure 7 The screw thread 204 preset in the advertising frame is inserted to fix the connection joint of the advertising frame. Finally, the cover 301 of the advertising frame is closed to make the connection structure of the advertising frame invisible, which is simple and beautiful. Figure 8 302 ), so that the flip cover can be turned around the hinge 302 axis on the frame. A plurality of through holes 203 are provided on the back, screws are placed in the through holes 203, and the screws are fastened to the body structure to complete the connection between the interior panel and the body.

[0056] When installing the electric heating interior panel, the installation points are distributed in the interior surrounded by the interior panel frame and the advertising frame of the main body. For the advertising frame, such as Figure 8 As shown, first open the flap 301 of the advertising frame to expose the hollow cavity. Screws are passed through the bottom through holes of the above two profiles and fixed to the body structure, thus completing the installation of the advertising frame profile and the body. The interior panel frame adjacent to the advertising frame profile is connected to the body in the same way, so that the interior panel frame and the advertising frame profile are installed to the body as a whole. The electrically heated interior panel between the advertising frame and the interior panel frame adjacent to the advertising frame profile has one end inserted into the side groove of the advertising frame profile and the other end inserted into the interior panel frame.

[0057] Then install the outer cover. Fig. 9 As shown, first place the outer cover plate inside the advertising frame onto the upper surface of the boss, then close the flip cover 301 so that the edge of the flip cover is pressed against the edge of the outer cover plate, thus completing the fixing of the outer cover plate. Fig. 9 Similarly, when the outer cover plate needs to be removed, the flip cover 301 is opened to remove the outer cover plate in the advertisement frame, which is convenient and quick.

[0058] When it is necessary to put an advertisement paper into the advertisement frame, the flip cover 301 is opened, the advertisement paper is placed on the surface of the outer cover plate, and then the flip covers around are closed to complete the operation.

[0059] Finally, fix the outer cover plate around the advertising frame. Insert one side of it into the gap between the outer side of the advertising frame profile and the flap. The outer cover plate is pre-opened with an oblong hole at the position of the thread block. Fig.10As shown, the back edge of the outer cover plate is overlapped onto the boss of the frame profile 109, and the oblong hole is aligned with the thread. Place the sealing gasket 107 on the contact surface between the screw and the outer cover plate, and then pass the screw 106 through the oblong hole of the outer cover plate and screw it into the thread of the thread block 108 until the screw is tightened to achieve the effect of fixing and sealing the outer cover plate. The protruding edge of the screw head will cover the oblong hole of the outer cover plate, and the transition is smooth so as not to scratch the passengers. The color of the nail head is coordinated with the overall color of the outer cover plate and the interior. Similarly, when it is necessary to remove the outer cover plate, loosen the screw from the thread block, remove the screw and the sealing gasket 107, and pull out the outer cover plate pressed under the flap of the advertising frame to complete the outer cover plate removal operation.

[0060] The thickness of the electric heating interior panel of the present invention does not exceed 2 cm, the shape is extremely thin, the space occupied can be ignored, and a larger space is provided for passengers to pass through the car. The electric heating interior panel is the heat dissipation of the whole panel, the heat dissipation surface is large and the heat dissipation is uniform, it belongs to low-temperature electric heating, and can be adjusted in real time according to the room temperature, avoiding the problem that the heat dissipation surface of the traditional tubular electric heater is small and easy to trigger the over-temperature protection. In addition, the electric heating interior panel converts electrical energy into far-infrared light, and the light propagation is not affected by the opening and closing of the door to dissipate heat, and the heating stability is better than convection heating. The motor heating interior panel saves the time of installing the electric heating equipment separately, and the interior panel can be removed from the body structure by removing a few screws, and the personnel can operate it while standing, which is convenient and quick. The surface temperature of the electric heating interior panel allows advertising paper to be placed on the surface of its outer cover plate, so that the electric heating interior panel is both practical and beautiful compared with the ordinary vehicle interior panel. In addition, the back of the electric heating interior panel of the technical solution is covered with heat-insulating material, and the heat dissipation will not have any effect on other equipment of the vehicle, achieving the expected design purpose.

[0061] The above is an exemplary embodiment disclosed by the present invention, but it should be noted that, without departing from the scope disclosed by the embodiments of the present invention as defined in the claims, various changes and modifications may be made. In addition, although the elements disclosed by the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0062] It should be understood that, as used herein, the singular forms "a", "an" are intended to include the plural forms as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations including one or more of the associated listed items.

[0063] The serial numbers of the embodiments disclosed in the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0064] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the embodiments of the present invention as described above, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. An interior panel with electric heating function for urban rail vehicles, It is characterized in that Include: Base plate; The interior panel frame is formed by connecting alloy profiles, the cross section of the profile is an "I"-shaped structure and includes grooves on both sides of the profile and a middle cavity sandwiched between the grooves on both sides; the bottom plate is fixedly connected to the profile on one side of the interior panel frame away from the middle cavity to form the bottom surface of the interior panel; An electric heating plate, the electric heating plate is inserted into grooves on both sides of the profile fixed to the interior trim panel frame; An outer cover plate is fixedly connected to the interior panel frame at one side of the outer cover plate adjacent to the middle cavity of the interior panel frame and covers the electric heating plate; wherein the outer cover plate is communicated with the interior of the vehicle compartment.

2. The interior trim panel with electric heating function as claimed in claim 1, It is characterized in that The electric heating plate comprises a conductive material and a flexible insulating substrate, wherein the conductive material is compounded to the flexible insulating substrate and is irregularly distributed in the flexible insulating substrate; the conductive material comprises a carbon-based material and an electrode; Wherein, the overall shape of the electric heating plate is a plane or a curved surface.

3. The interior trim panel with electric heating function as claimed in claim 1, It is characterized in that A thin film pressure-sensitive sensor is disposed between the outer cover plate and the electric heating plate, and the thin film pressure-sensitive sensor is fixed to the electric heating plate.

4. The interior trim panel with electric heating function as claimed in claim 3, It is characterized in that The thin film pressure sensitive sensor is configured as follows: When the outer cover plate is not pressed, it is in a disconnected state and does not work; When the outer cover plate is pressed, it is in an on state and automatically transmits a resistance signal to an external thermostat, so that the thermostat sends a cooling signal to the electric heating plate corresponding to the pressed area and cools it down to below 40°C; When the pressing pressure on the outer cover plate disappears, it is in a disconnected state, so that the electric heating plate at the corresponding position returns to the rated heating temperature.

5. The interior trim panel with electric heating function as claimed in claim 1, It is characterized in that A heat insulating material is arranged between the electric heating plate and the bottom plate to prevent heat from being transferred to the bottom plate.

6. The interior trim panel with electric heating function as claimed in claim 1, It is characterized in that A plurality of fixing blocks are arranged at intervals in the middle cavity of the interior trim panel frame, and fixing members are inserted through the outer cover panel into the fixing blocks for connection, so that the outer cover panel is fixedly connected to the interior trim panel frame.

7. The interior trim panel with electric heating function as claimed in claim 5, It is characterized in that The interior trim panel also includes a terminal block, which is sandwiched between the outer cover panel and the insulation material and is electrically connected to the electric heating plate; the wires extending from the terminal block extend from a through hole opened on one side of the bottom plate of the interior trim panel and are connected to an external temperature control device, thereby facilitating electrical wiring between the interior trim panel and the vehicle body structure.

8. The interior trim panel with electric heating function as claimed in claim 1, It is characterized in that The interior trim panel frame also includes an advertising frame, which is composed of alloy profiles. The cross-section of the profile is an "I"-shaped structure and includes grooves on both sides of the profile and a middle cavity sandwiched between the grooves on both sides; the advertising frame also includes a mounting piece, which passes through the profile of the middle cavity of the advertising frame to fix the advertising frame to the vehicle body structure; a hinge and a flap are provided at one end of the outer cover plate of the interior trim panel at the middle cavity of the advertising frame, and the flap can be flipped around the hinge axis on the frame to cover the mounting piece and fix the advertising leaf.

9. The interior trim panel with electric heating function as claimed in claim 8, It is characterized in that Through holes penetrating the interior panel frame and the bottom plate are also arranged at intervals in the middle cavity of the interior panel frame. The through holes are used to place mounting screws, and the interior panel is connected to the vehicle body structure through the mounting screws.

10. An urban rail vehicle, It is characterized in that It comprises an interior trim panel with electric heating function as described in any one of claims 1 to 9.

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