CN211519457U - Rain wiper system for rail transit locomotive - Google Patents
Rain wiper system for rail transit locomotive Download PDFInfo
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- CN211519457U CN211519457U CN201921401919.6U CN201921401919U CN211519457U CN 211519457 U CN211519457 U CN 211519457U CN 201921401919 U CN201921401919 U CN 201921401919U CN 211519457 U CN211519457 U CN 211519457U
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- infrared
- windshield
- receiving tube
- casing
- wiper system
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Abstract
The utility model discloses a rain wiper system for rail transit locomotive includes rainfall sensor, control box, rain wiper motor, drive mechanism and the arm of scraping doctor-bar assembly that connects gradually, and drive mechanism converts the circular motion of rain wiper motor output into the swing, and the control box includes the shell, is provided with the circuit board in the shell, is provided with MCU on the circuit board, MCU is connected with ten thousand switches and rain wiper motor respectively; the rainfall sensor is fixed at the windshield internal surface, and the rainfall sensor includes the casing, and the one side of casing laminating windshield is infrared lens, is provided with infrared emission pipe and infrared receiving tube in the casing, and the infrared ray that infrared emission pipe sent is received by infrared receiving tube after windshield's total reflection, and infrared receiving tube is connected with the PCB board, and the PCB board is fixed in the casing. The utility model discloses a wiper scrapes the brush according to rainfall size adjustment, sensitivity is high.
Description
Technical Field
The utility model belongs to the technical field of the window wiper, a rail transit locomotive is with window wiper system is related to.
Background
The wiper system is used as an auxiliary device for running of a cab of a rail transit rolling stock in a rainy day, so that a crew can timely know the road condition in front of running in the rainy day, and timely watch out related signals, and certain guarantee effect is achieved on running safety.
However, the existing wiper cannot adjust the state of the wiper in time according to the change of rainfall or the condition that vehicles enter a tunnel to run in rainy days, so that the vision of the crew is influenced by heavy rain and slow wiping, and the aging, abrasion, motor burning loss and other faults of the wiper are accelerated by light rain and fast wiping or dry wiping.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a rail transit locomotive is with blowing rain ware system has realized blowing the rain ware and has blown the brush according to the sensitive adjustment of rainfall size.
The technical scheme adopted by the utility model is that, a rain wiper system for rail transit locomotive, including the rainfall sensor, the control box, the rain wiper motor, the drive mechanism and the wiper arm doctor-bar assembly that connect gradually, the drive mechanism converts the circular motion of the output of the rain wiper motor into swing, the control box includes a shell, a circuit board is arranged in the shell, the circuit board is provided with MCU, MCU is connected with the universal switch and the rain wiper motor respectively, the universal switch is also connected with the rain wiper motor;
the rainfall sensor is fixed at the windshield internal surface, and the rainfall sensor includes the casing, and casing laminating windshield's one side is infrared lens, and infrared lens keeps away from the surface of windshield one side and compresses tightly fixedly through the inside roof beam that compresses tightly of casing, is provided with infrared emission pipe and infrared receiving tube in the casing, and the infrared ray that infrared emission pipe sent is received by infrared receiving tube after windshield's total reflection, and infrared receiving tube is connected with the PCB board, and the PCB board is fixed in the casing.
The utility model is characterized in that,
the circuit of PCB board includes the signal processor who is connected with MCU through SPI bus connection, and signal processor is connected with emitting diode, the photosensitive diode a of infrared receiving tube, the photosensitive diode b for the background light of infrared transmitting tube respectively, and signal processor converts light signal into the signal of telecommunication.
The MCU is an automobile-grade singlechip.
The infrared transmitting tube and the infrared receiving tube are respectively close to opposite side edges of the infrared lens, a transparent silica gel and a double-sided film are arranged on the binding surface of the infrared lens and the windshield, so that the infrared lens is tightly bound with the windshield, the double-sided film is light-proof, the positions of the transparent silica gel respectively correspond to the infrared transmitting tube and the infrared receiving tube, and infrared rays emitted by the infrared transmitting tube are reflected into the windshield through one transparent silica gel, are reflected into the infrared lens through the other transparent silica gel and are received by the infrared receiving tube.
The total reflection times of the infrared rays in the windshield are not less than two.
The shell is a PC plastic shell and is fixed by an upper part and a lower part through pressing buckles.
The wiper motor is a double-speed direct-current speed reducing motor.
The universal switch is provided with six gears.
The utility model has the advantages that:
the utility model relates to a wiper system for rail transit locomotive, which has simple structure and convenient use; the applicability is wide, the universality is strong, and the method can be applied to electric locomotives, diesel locomotives, motor cars, high-speed rails, subways and the like; the rainfall sensor is used for determining the intensity of total reflection infrared light of the windshield through the cooperation of the infrared transmitting tube and the infrared receiving tube, and judging the rainfall on the windshield; the sensitivity is high, and the running safety of the rail transit locomotive is improved; meanwhile, the effective use of the whole rain wiping system is ensured, and the service life of the rain wiping system is prolonged; the manual control can be carried out through the universal switch, so that the utility model has the functions of manual and automatic scraping brushes and cleaning the windshield; the working strength of a driver is reduced, and the phenomenon of dry scraping of the window wiper caused by misoperation or untimely operation is prevented; the failure rate is low, and the maintenance period is long.
Drawings
Fig. 1 is a schematic circuit connection diagram of a wiper system for a rail transit locomotive according to the present invention;
fig. 2 is a schematic connection diagram of a wiper motor in the wiper system for the rail transit locomotive according to the present invention;
fig. 3 is a schematic structural view of a rain sensor for a wiper system of a rail transit locomotive according to the present invention;
fig. 4 is a front view of a rain sensor for a wiper system of a rail transit locomotive according to the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 4;
fig. 6 is a circuit diagram of a PCB board of the rain sensor for the wiper system of the rail transit locomotive.
In the figure, 1, a shell, 2, an infrared lens, 3, an infrared emission tube, 4, an infrared receiving tube, 5, a PCB (printed Circuit Board), 6, a signal processor, 7, a light emitting diode, 8, a photosensitive diode a, 9, a photosensitive diode b for background light, 10, transparent silica gel, 11, a double-sided film, 12, a pressing beam, 13, an MCU, 14, a windshield, 15, a rainfall sensor, 16, a control box, 17, a wiper motor, 18, a transmission mechanism, 19, a wiper arm assembly and 20, a universal switch.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a rail transit locomotive is with blowing rain ware system, as shown in figure 1, including the rainfall sensor 15 that connects gradually, the control box 16, blow rain ware motor 17, drive mechanism 18 and blow arm doctor-bar assembly 19, it is double speed direct current gear motor to blow rain ware motor 17, drive mechanism 18 is including the crank that is connected with blowing rain ware motor 17 in proper order, the connecting rod, rocker and output shaft, the output shaft with blow arm doctor-bar assembly 19 and be connected, as shown in figure 2, the circular motion that drive mechanism 18 will blow rain ware motor 17 output converts the swing into, control box 16 includes the shell, be provided with the circuit board in the shell, be provided with MCU13 on the circuit board, MCU13 is connected with universal switch 20 respectively and blows rain ware motor 17, universal switch 20 still is connected with blowing rain ware motor 17.
The model of the control box 16 is RZD-1 or RZD-2; the MCU13 is an automobile-grade singlechip; the universal switch 20 is provided with six gears which are respectively a motor low-speed working position, a motor high-speed working position, a motor intermittent working position, a motor reset working position, a motor stop working position and an automatic position, and the automatic position corresponds to the control box 16 to control the scraping arm and scraping blade assembly 19 to automatically scrape and brush; the wiper motor 17 is a double-speed direct-current speed reduction motor, the wiper motor 17 has over-temperature protection, and when the temperature of the wiper motor 17 reaches a protection temperature value, a temperature switch in the motor is switched off, so that the input power supply of the motor is cut off, and the motor stops working.
As shown in fig. 3-5, the rain sensor 15 is fixed on the inner surface of the windshield 14, the rain sensor 15 includes a housing 1, the housing 1 is a PC plastic shell, the housing 1 is fixed by pressing and buckling an upper portion and a lower portion, one surface of the housing 1, which is attached to the windshield 14, is an infrared lens 2, the surface of the infrared lens 2, which is far away from the windshield 14, is pressed and fixed with the housing 1 through a pressing beam 12 inside the housing 1, an infrared transmitting tube 3 and an infrared receiving tube 4 are arranged in the housing 1, infrared rays emitted by the infrared transmitting tube 3 are received by the infrared receiving tube 4 after being totally reflected by the windshield 14, the infrared receiving tube 4 is connected with a PCB 5, and the PCB 5 is fixed in the housing 1.
As shown in fig. 6, the circuit of the PCB includes a signal processor 6 connected to the MCU13 through an SPI bus, the signal processor 6 is connected to the light emitting diode 7 of the infrared emission tube 3, the photodiode a8 of the infrared reception tube 4, and the photodiode b9 for background light, respectively, and the signal processor 6 converts an optical signal into an electrical signal.
The infrared transmitting tube 3 and the infrared receiving tube 4 are respectively close to opposite side edges of the infrared lens 2, a transparent silica gel 10 and a double-sided film 11 are arranged on a binding surface of the infrared lens 2 and the windshield 14, so that the infrared lens 2 is tightly bound with the windshield 14, the double-sided film 11 is light-proof, the position of the transparent silica gel 10 corresponds to the infrared transmitting tube 3 and the infrared receiving tube 4 respectively, infrared rays emitted by the infrared transmitting tube 3 are transmitted into the windshield 14 through one transparent silica gel 10 to be totally reflected and then transmitted into the infrared lens through the other transparent silica gel 10 to be received by the infrared receiving tube 4, the total reflection times of the infrared rays in the windshield 14 are not less than two times, and the total reflection times of the infrared rays in the windshield 14 are four-six times optimal.
The number of times of total reflection of infrared rays in the windshield 14 is optimal to be greater than four times because if only one total reflection occurs, the whole rainfall sensor 15 has only one detection point for the whole windshield, so that when the rainfall is not large, the rainfall sensor 15 is difficult to detect the change of the rainfall, a relatively long time is possibly required to reflect the external situation, and the windshield wiper is started, so that the response speed and the performance of the rainfall sensor 15 are reduced; meanwhile, the number of times of total reflection cannot be increased without limit, if the number of times of total reflection is too large, the size of the whole rainfall sensor 15 is too large, because the distance between the transmitting end and the receiving end is mainly determined according to the number of times of total reflection of infrared rays, the increase of the number of times of total reflection inevitably causes the increase of the distance between the transmitting end and the receiving end, so that the size of the whole rainfall sensor 15 is increased, the installation is inconvenient, and the driver can influence the sight of the driver when the rainfall sensor is placed on a windshield.
The utility model relates to a rail transit locomotive is with work process of blowing rain ware system specifically as follows:
the surface of an infrared lens 2 of a rainfall sensor 15 is fixed on the inner surface of a windshield through a double-sided film 11, infrared rays emitted by an infrared emission tube 3 are emitted into the windshield 14 through a transparent silica gel 10, the infrared rays are totally reflected for multiple times in the windshield 14 and then emitted into the infrared lens through another transparent silica gel 10 to be received by an infrared receiving tube 4, background light of a PCB 5 is used for receiving background light and stray light through a photodiode b9 to eliminate interference, and received infrared light signals are transmitted into a signal processor 6 through the infrared receiving tube 4.
If the infrared ray emitted by the infrared emission tube 3 is totally reflected at the interface between the windshield 14 and the air and is received by the infrared receiving tube 4, the rain sensor on the windshield 14 has no water in the working range; if the reflected light received by the infrared receiving tube 4 weakens, the interface of the windshield 14 and the water drops refracts and scatters at the water interface and the air interface, thereby judging that the windshield 14 is provided with water in the working range of the rain sensor. Therefore, whether the rain sensor 15 has rain water in the working range and the size of the rain water can be judged according to the strength of the sensing reflection signal of the infrared receiving tube 4.
The signal processor 6 converts the optical signal into an electrical signal and transmits the electrical signal to the MCU13, the MCU13 grades the electrical signal according to the strength of the electrical signal, when the MCU13 detects that the universal switch 20 is in an automatic position, the rainfall electrical signal sent by the rainfall sensor 15 is judged and processed, and a plurality of groups of relay contacts corresponding to a logic relationship are output so as to control one or more motors to enter a corresponding working state, wherein the working state of the motors comprises low-speed working, high-speed working, intermittent working, resetting and stopping, and the wiper motor 17 drives a wiper arm wiper blade assembly 19 connected with the wiper arm wiper motor through a transmission mechanism 18, so that the wiper arm wiper blade assembly 19 wipes the windshield glass; when the control box 16 detects that the universal switch 20 is in the non-automatic position, that is, when the universal switch 20 is in one of the motor low-speed working position, the motor high-speed working position, the motor intermittent working position, the motor reset working position and the motor stop working, the corresponding component wiper motor 17 works according to the gear position, so that the wiper arm and wiper blade assembly 19 wipes the windshield.
Claims (8)
1. The window wiper system for the rail transit locomotive is characterized by comprising a rainfall sensor (15), a control box (16), a window wiper motor (17), a transmission mechanism (18) and a wiper arm and wiper blade assembly (19) which are sequentially connected, wherein the transmission mechanism (18) converts circular motion output by the window wiper motor (17) into swing, the control box (16) comprises a shell, a circuit board is arranged in the shell, an MCU (13) is arranged on the circuit board, the MCU (13) is respectively connected with a universal switch (20) and the window wiper motor (17), and the universal switch (20) is further connected with the window wiper motor (17);
rain sensor (15) are fixed at windshield (14) internal surface, rain sensor (15) include casing (1), the one side of casing (1) laminating windshield (14) is infrared lens (2), infrared lens (2) are kept away from the surface of windshield (14) one side and are compressed tightly fixedly with casing (1) through casing (1) inside pressure beam (12), be provided with infrared emission pipe (3) and infrared receiving tube (4) in casing (1), the infrared ray that infrared emission pipe (3) sent is received by infrared receiving tube (4) after the total reflection of windshield (14), infrared receiving tube (4) are connected with PCB board (5), PCB board (5) are fixed in casing (1).
2. The windshield wiper system for the rail transit locomotive according to claim 1, wherein the circuit of the PCB board comprises a signal processor (6) connected with an MCU (13) through an SPI bus connection, the signal processor (6) is respectively connected with a light emitting diode (7) of an infrared emitting tube (3), a photosensitive diode a (8) of an infrared receiving tube (4) and a photosensitive diode b (9) for background light, and the signal processor (6) converts optical signals into electric signals.
3. The wiper system for rail transit locomotive according to claim 1, wherein said MCU (13) is an automobile grade single chip microcomputer.
4. The window wiper system for the rail transit locomotive according to claim 1, wherein the infrared transmitting tube (3) and the infrared receiving tube (4) are respectively close to opposite side edges of the infrared lens (2), the attaching surface of the infrared lens (2) and the windshield (14) is provided with a transparent silica gel (10) and a double-sided film (11), so that the infrared lens (2) and the windshield (14) are closely attached, the double-sided film (11) is opaque, the position of the transparent silica gel (10) corresponds to the infrared transmitting tube (3) and the infrared receiving tube (4) respectively, and infrared rays emitted by the infrared transmitting tube (3) are incident into the windshield (14) through one transparent silica gel (10) and then are incident into the infrared lens through another transparent silica gel (10) and received by the infrared receiving tube (4).
5. A windscreen wiper system according to claim 4, wherein the infrared radiation is totally reflected in the windscreen (14) at least twice.
6. The windscreen wiper system as set forth in claim 1 wherein said housing (1) is a PC plastic shell, and said housing (1) is fixed by pressing and fastening the upper and lower parts.
7. A windscreen wiper system for a rail vehicle as set forth in claim 1 wherein said wiper motor (17) is a two-speed dc gear motor.
8. A windscreen wiper system for a rail vehicle according to claim 1, wherein said rocker switch (20) is provided with six gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921401919.6U CN211519457U (en) | 2019-08-27 | 2019-08-27 | Rain wiper system for rail transit locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921401919.6U CN211519457U (en) | 2019-08-27 | 2019-08-27 | Rain wiper system for rail transit locomotive |
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| Publication Number | Publication Date |
|---|---|
| CN211519457U true CN211519457U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921401919.6U Active CN211519457U (en) | 2019-08-27 | 2019-08-27 | Rain wiper system for rail transit locomotive |
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| CN (1) | CN211519457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116991190A (en) * | 2023-09-26 | 2023-11-03 | 深圳市普乐方文化科技股份有限公司 | Control device for optical induction equipment and control method thereof |
-
2019
- 2019-08-27 CN CN201921401919.6U patent/CN211519457U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116991190A (en) * | 2023-09-26 | 2023-11-03 | 深圳市普乐方文化科技股份有限公司 | Control device for optical induction equipment and control method thereof |
| CN116991190B (en) * | 2023-09-26 | 2024-01-02 | 深圳市普乐方文化科技股份有限公司 | Control device for optical induction equipment and control method thereof |
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