Protection device for monitoring pantograph-catenary of railway vehicle
By using electric heating windshield in the rail vehicle bow network monitoring device, the problem of frost and fog in low-temperature and high-cold environments is solved, clear monitoring effect and safe train operation are achieved, and maintenance costs are reduced.
Patent Information
- Application Number
- CN202421948495.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-13
AI Technical Summary
The brow network monitoring device of the rail electric train is unclear in low temperature and high cold environment due to frost and fog on the windshield, which affects the safety of the train operation.
The electric heating windshield is used to set a screen printing area on the outer and inner glass surfaces, and the electric heating tungsten wire is welded on the tungsten wire PVB film to form a parallel and series resistance, and the heating temperature is controlled using temperature control elements to prevent the glass from frost and fogging.
In low temperature and high cold environments, ensure the clear camera effect of the bow network monitoring device, ensure the safety of train operation, and reduce maintenance costs.
Smart Images
Figure CN223053057U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of monitoring equipment, in particular to a protection device for pantograph-catenary monitoring of rail vehicles. Background Technique
[0002] Pantograph-catenary monitoring cameras are installed on rail electric trains to monitor the contact between the pantograph slider and the power grid. In order to protect the pantograph-catenary monitoring cameras from external damage during train operation, protective covers made of composite materials are installed outside the pantograph-catenary monitoring devices, and windshield glasses are installed on the protective covers to protect the monitoring cameras and fill lights.
[0003] During actual use, due to weather reasons, frosting and fogging may occur on the surface of the glass, affecting the monitoring imaging effect of the camera. For this reason, the utility model proposes a protection device for pantograph-catenary monitoring of rail vehicles to solve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a protection device for pantograph-catenary monitoring of rail vehicles to solve the problems of frosting and fogging on the surface of the glass and affecting the monitoring of the camera as mentioned in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A protection device for pantograph-catenary monitoring of rail vehicles, including: a pantograph-catenary monitoring protective cover, an electrically heated windshield glass, and a steel base. The pantograph-catenary monitoring protective cover is fixed to the upper end of the steel base, and the electrically heated windshield glass is installed on one side of the pantograph-catenary monitoring protective cover. The electrically heated windshield glass includes an outer glass and an inner glass. Screen printing areas are provided on the surfaces of the outer glass and the inner glass facing each other. A tungsten wire PVB film is provided on the side of the outer glass with the screen printing area. A PVB composite film is provided on the other side of the tungsten wire PVB film, and the PVB composite film is adhered to the side of the inner glass with the screen printing area.
[0006] Preferably, a junction box is installed at the bottom corner of the other surface of the inner glass. The tungsten wire PVB film includes a single-layer PVB film, an electrically heated tungsten wire, a conductive metal sheet, and a wire. Conductive metal sheets are provided on both sides of the surface of the single-layer PVB film. The two ends of the electrically heated tungsten wire are respectively welded to different conductive metal sheets on both sides to form parallel resistances for different heating zones separately, and series resistances are formed between the heating zones. The conductive metal sheet is connected to the junction box through a welded wire.
[0007] Preferably, an installation groove is opened at one end of the pantograph-catenary monitoring protective cover. The installation groove is convex, and a sealing ring is fixedly installed at the inner end of the installation groove.
[0008] Preferably, fixing grooves are formed on four sides at one end of the pantograph monitoring protection cover, and the fixing grooves communicate with the installation grooves.
[0009] Preferably, the electric heating windshield is placed in the installation groove and contacts the sealing ring.
[0010] Preferably, a pressing frame is arranged at the outer end of the electric heating windshield. Fixing blocks are fixedly installed at four ends of the pressing frame. The pressing frame contacts the outer end of the electric heating windshield. The fixing blocks are located in the fixing grooves and are fixed by screws.
[0011] Preferably, a temperature control element is arranged inside the junction box.
[0012] Preferably, through holes are formed through the surfaces of the PVB composite adhesive film and the inner glass so that the connecting wires can pass through.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] The present utility model can ensure that during the operation of the rail vehicle in a low-temperature and high-cold environment, the pantograph monitoring device will not have unclear and unsatisfactory monitoring camera effects due to the frosting and fogging of the windshield, guarantee the safe operation of the train, and at the same time reduce the maintenance cost of the rail vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0016] Figure 2 is a schematic diagram of the pressing frame of the present utility model being opened;
[0017] Figure 3 is a front view of the outer glass of the present utility model;
[0018] Figure 4 is a rear view of the inner glass of the present utility model;
[0019] Figure 5 is an exploded view of the structure of the electric heating windshield of the present utility model;
[0020] Figure 6 is a schematic diagram of the structure of the tungsten wire PVB adhesive film of the present utility model;
[0021] Figure 7 is a schematic diagram of the heating principle of the present utility model.
[0022] In the figure: 1. Pantograph monitoring and protection cover; 11. Installation groove; 12. Fixing groove; 13. Sealing ring; 14. Pressing frame; 15. Fixing block; 2. Electrically heated windshield; 3. Steel base; 21. Outer glass; 22. Inner glass; 23. Screen printing area; 24. Tungsten wire PVB film; 25. PVB composite film; 26. Junction box; 241. Single-layer PVB film; 242. Electrically heated tungsten wire; 243. Conductive metal sheet; 244. Electric wire. Detailed implementation manners
[0023] In order to clearly and completely describe the purpose, technical solutions of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, and are not used to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.
[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0026] For the purposes of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are set forth in order to provide a thorough understanding of the embodiments. However, it is obvious that, for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail so as not to unnecessarily obscure these embodiments. Additionally, all embodiments can be used in combination with each other.
[0027] Please refer to Figures 1 to 7 , the present utility model provides a technical solution: a protection device for pantograph-catenary monitoring of rail vehicles, comprising: a pantograph-catenary monitoring protective cover 1, an electrically heated windshield 2, and a steel base 3. The pantograph-catenary monitoring protective cover 1 is fixed to the upper end of the steel base 3, and the electrically heated windshield 2 is installed on one side of the pantograph-catenary monitoring protective cover 1. The electrically heated windshield 2 includes an outer glass 21 and an inner glass 22. Screen printing areas 23 are provided on the surfaces of the outer glass 21 and the inner glass 22 facing each other. A tungsten wire PVB film 24 is provided on the side of the outer glass 21 with the screen printing area 23. A PVB composite film 25 is provided on the other side of the tungsten wire PVB film 24, and the PVB composite film 25 is adhered to the side of the inner glass 22 with the screen printing area 23. Through holes are formed through the surfaces of the PVB composite film 25 and the inner glass 22 to allow the connection wire 244 to pass through.
[0028] A junction box 26 is installed at the bottom corner of the other side surface of the inner glass 22. A temperature control element is provided inside the junction box 26. The heating temperature can be set through the temperature control element, thereby achieving the purpose of temperature control. The tungsten wire PVB film 24 includes a single-layer PVB film 241, an electrically heated tungsten wire 242, conductive metal sheets 243, and a wire 244. Conductive metal sheets 243 are provided on both sides of the surface of the single-layer PVB film 241. The two ends of the electrically heated tungsten wire 242 are respectively welded to different conductive metal sheets 243 on both sides to form parallel resistances separately for different heating zones, and series resistances are formed between the heating zones. The conductive metal sheets 243 are connected to the junction box 26 through the welded wire 244.
[0029] Specifically, the electric heating tungsten wire 242 is arranged on the single-layer PVB film 241 through a special glass cloth wire device. The diameter of the tungsten wire is 0.015 mm or 0.02 mm, which does not affect the camera shooting effect of the camera under the heating state. Then, both ends of the electric heating tungsten wire 242 are respectively welded to two conductive metal sheets 243, and wires 244 are welded to the two conductive metal sheets 243 as lead-out wires. Holes are drilled on the surfaces of the PVB composite film 25 and the inner glass 22 to make the wires 244 pass through the holes to the outside of the glass. Then, the tungsten wire PVB film 24 and the PVB composite film 25 are compounded and formed with the screen printing areas 23 of the outer glass 21 and the inner glass 22, and are heated and pressurized in a glass autoclave to form laminated glass. A junction box 26 is bonded at the wire outlet hole position of the inner glass 22, and the junction box 26 is connected to the wire 244. After completion, the electric heating windshield 2 is bonded to the pantograph monitoring protection cover 1, and then connected to the steel base 3. After connecting the power supply, the temperature control range is set through the temperature control element inside the junction box 26, and the surface of the electric heating windshield 2 is prevented from frosting and fogging by heating the electric heating tungsten wire 242.
[0030] The utility model can ensure that during the operation of the rail vehicle in a low-temperature and high-cold environment, the pantograph monitoring device will not have unclear and unsatisfactory monitoring camera shooting effects due to frosting and fogging of the windshield, guarantee the safe operation of the train, and at the same time reduce the maintenance cost of the rail vehicle.
[0031] As Figure 1 and Figure 2 shown, in some embodiments, an installation groove 11 is formed at one end of the pantograph monitoring protection cover 1. The installation groove 11 is convex, and a sealing ring 13 is fixedly installed at the inner end of the installation groove 11. Fixing grooves 12 are formed on four sides of one end of the pantograph monitoring protection cover 1. The fixing grooves 12 communicate with the installation groove 11, and threaded holes are formed on the bottom inner walls of the fixing grooves 12. The electric heating windshield 2 is placed in the installation groove 11 and contacts the sealing ring 13. A pressing frame 14 is arranged at the outer end of the electric heating windshield 2. Fixing blocks 15 are fixedly installed at four ends of the pressing frame 14. Through holes are formed on the side walls of the fixing blocks 15. The pressing frame 14 contacts the outer end of the electric heating windshield 2. The fixing blocks 15 are located in the fixing grooves 12 and are fixed by screws. More specifically, the lower end of the screw passes through the through hole and is threadedly connected to the inner wall of the threaded hole. By screwing the screw tightly, the fixing block 15 is fixed in the fixing groove 12, thereby fixing the pressing frame 14. At this time, the pressing frame 14 applies an inward thrust to the electric heating windshield 2, making the electric heating windshield 2 closely contact the sealing ring 13, thereby sealing and installing the electric heating windshield 2 in the installation groove 11, which facilitates the disassembly and assembly of the electric heating windshield 2.
[0032] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A protection device for monitoring a pantograph of a railway vehicle, comprising: A bow net monitoring protection cover (1), an electrically heated windshield (2) and a steel base (3), wherein the bow net monitoring protection cover (1) is fixed to the upper end of the steel base (3), and the electrically heated windshield (2) is installed on one side of the bow net monitoring protection cover (1), characterized in that: the electrically heated windshield (2) comprises an outer glass (21) and an inner glass (22), and the surfaces of the outer glass (21) and the inner glass (22) facing each other are both provided with a screen printing area (23), a tungsten filament PVB film (24) is provided on the side of the outer glass (21) with the screen printing area (23), and a PVB composite film (25) is provided on the other side of the tungsten filament PVB film (24), and the PVB composite film (25) is bonded to the side of the inner glass (22) with the screen printing area (23).
2. A protection device for rail vehicle pantograph-catwalk monitoring according to claim 1, characterized in that: A junction box (26) is installed at the bottom corner of the other side surface of the inner glass (22); the tungsten filament PVB film (24) comprises a single-layer PVB film (241), an electrically heated tungsten filament (242), a conductive metal sheet (243) and an electric wire (244); conductive metal sheets (243) are arranged on both sides of the surface of the single-layer PVB film (241); two ends of the electrically heated tungsten filament (242) are respectively welded to the conductive metal sheets (243) on both sides; different heating zones form separate parallel resistors, and series resistors are formed between the heating zones; the conductive metal sheet (243) is connected to the junction box (26) via the welded electric wire (244).
3. A protection device for monitoring the pantograph of a railway vehicle according to claim 1, characterized in that: A mounting groove (11) is provided at one end of the pantograph-net monitoring protection cover (1), the mounting groove (11) is convex, and a sealing ring (13) is fixedly mounted at the inner end of the mounting groove (11).
4. A protection device for rail vehicle pantograph-catwalk monitoring according to claim 1, characterized in that: Four sides of one end of the pantograph-net monitoring protection cover (1) are provided with fixing grooves (12), and the fixing grooves (12) are connected to the installation grooves (11).
5. The protection device for monitoring the pantograph of a railway vehicle according to claim 1, characterized in that: The electrically heated windshield (2) is placed in the mounting groove (11) and is in contact with the sealing ring (13).
6. A protection device for rail vehicle pantograph-catwalk monitoring according to claim 1, characterized in that: The outer end of the electrically heated windshield (2) is provided with a pressing frame (14), and fixing blocks (15) are fixedly mounted on the four ends of the pressing frame (14). The pressing frame (14) is in contact with the outer end of the electrically heated windshield (2), and the fixing blocks (15) are located in the fixing grooves (12) and fixed by screws.
7. A protection device for rail vehicle pantograph-catwalk monitoring according to claim 2, characterized in that: A temperature control element is arranged inside the junction box (26).
8. The protection device for monitoring the pantograph of a railway vehicle according to claim 1, characterized in that: Through holes are provided through the surfaces of the PVB composite adhesive film (25) and the inner glass (22) to allow the connection wires (244) to pass through.