Head-up display hood and car

Abstract

The present disclosure relates to a head-up display sunshade and a car, and belongs to the field of automobiles. The head-up display sunshade includes a cover body, a reel, a sunshade, two cables, a motor, a temperature sensor and a controller. The cover body has a bottom plate and a side wall surrounding the bottom plate, and the bottom plate has a rectangular opening. Both ends of the reel are mounted on the bottom plate. One side of the sunshade is fixed to the side wall of the reel. One end of one of the two cables is connected to one end of the other side of the sunshade, and one end of the other cable of the two cables is connected to the other end of the other side of the sunshade. The motor has an output shaft, and the output shaft is mounted on the bottom plate. The other end of each cable of the two cables is connected to the side wall of the output shaft. The temperature sensor is located in the head-up display inside the head-up display sunshade, and the temperature sensor is used to measure the temperature of the head-up display, convert the temperature into an electrical signal, and transmit it to the controller.

Description

Technical Field

[0001] The present disclosure relates to the field of automobiles, and in particular to a head-up display visor and an automobile. Background Art

[0002] Head Up Display (HUD), also known as a head-up display, can project various parameters of the car to the front of the driver's field of vision (usually onto the windshield), allowing the driver to keep his eyes level, improving driving safety, and is being used more and more widely in automobiles.

[0003] The head-up display includes a display body and two reflectors. The display body is used to display images. The light of the display images is reflected by the two reflectors in turn and then projected in front of the driver's field of vision.

[0004] However, light outside the vehicle can also pass through the windshield and then be projected onto the display body after being reflected by the reflector. The light irradiates the display body, causing the temperature of the display body to rise, which can easily cause damage to the display body. Summary of the invention

[0005] The embodiment of the present disclosure provides a head-up display visor and a car, which protect the display body when the temperature of the display body rises. The technical solution is as follows:

[0006] On the one hand, the present disclosure provides a head-up display sunshade, which comprises: a cover body, having a bottom plate and a side wall surrounding the bottom plate, the bottom plate having a rectangular opening; a reel located in the cover body, both ends of the reel being mounted on the bottom plate, the extension direction of the reel being parallel to the surface of the bottom plate, and the reel being rotatable around the center line of the reel, the reel being arranged along a first side edge of the rectangular opening; a sunshade, one side edge of the sunshade being fixed to the side wall of the reel; two cables, one end of one of the two cables being connected to one end of the other side edge of the sunshade, and one end of the other cable of the two cables being connected to the other end of the other side edge of the sunshade; a motor having an output shaft, the output shaft being mounted on the bottom plate, the center line of the output shaft being perpendicular to the surface of the bottom plate, and the other end of each of the two cables being connected to the other end of the other side edge of the sunshade. One end is connected to the side wall of the output shaft, the output shaft is located in the cover body and close to the second side of the rectangular opening, the first side and the second side are two opposite sides of the rectangular opening; a temperature sensor is located in the head-up display in the head-up display hood, the temperature sensor is used to measure the temperature of the head-up display and convert the temperature into an electrical signal; a controller is used to receive the electrical signal, when the temperature of the head-up display indicated by the electrical signal is greater than a first temperature threshold, control the motor to drive the sunshade to move toward the output shaft; when the temperature of the head-up display indicated by the electrical signal is less than a second temperature threshold, control the motor to drive the sunshade to move toward the roller; when the temperature of the head-up display indicated by the electrical signal is greater than or equal to the second temperature threshold and less than or equal to the first temperature threshold, control the motor not to work.

[0007] In an implementation of the embodiment of the present disclosure, the side walls of the two cables are serrated, the output shaft sleeve is provided with a gear, and the side walls of the two cables are respectively meshed with the gear from both sides of the gear.

[0008] In one implementation of the disclosed embodiment, the head-up display visor further includes two groups of cable guides, one of the two cables passes through one group of cable guides in the two groups of cable guides, and the other of the two cables passes through the other group of cable guides in the two groups of cable guides, and the two groups of cable guides are located in the hood; each of the two groups of cable guides includes: a first section), fixed to the bottom plate, the first section is located on any one side of the third side and the fourth side, the third side and the fourth side are the other two sides of the rectangular opening, and the first section The extension direction of one section is parallel to the extension direction of the third side; the second section is fixed on the bottom plate, the second section is located on the second side, and the second section is connected to the first section, and the extension direction of the second section is parallel to the extension direction of the second side; the third section is fixed on the bottom plate, the third section is located on the second side, the third section is spaced from the second section, and the opening of the third section is opposite to the opening of the second section, the openings opposite to the third section and the second section are respectively located on both sides of the output shaft, and the extension direction of the third section is the same as the extension direction of the second side.

[0009] In one implementation of the embodiment of the present disclosure, the reel includes: two mounting feet, one ends of the two mounting feet are fixed to the base plate, and the two mounting feet are arranged at intervals along the extension direction of the first side; a central axis, both ends of the central axis are respectively fixedly connected to the other ends of the two mounting feet; and a sleeve is sleeved on the central axis.

[0010] In an implementation of the embodiment of the present disclosure, the head-up display visor further includes: a torsion spring, a central sleeve of the torsion spring is fixed on the central axis, and both ends of the torsion spring are fixed to the inner wall of the sleeve.

[0011] In one implementation of the embodiment of the present disclosure, the controller is electrically connected to an electronic control unit of a car, and the controller is also used to send the electrical signal to the electronic control unit.

[0012] In an implementation of the embodiment of the present disclosure, the first temperature threshold ranges from 80 degrees Celsius to 90 degrees Celsius, and the second temperature threshold ranges from 60 degrees Celsius to 70 degrees Celsius.

[0013] In one implementation of the embodiment of the present disclosure,

[0014] The head-up display visor further includes a transparent dust-proof curtain, and the dust-proof curtain covers the rectangular opening.

[0015] In an implementation of the embodiment of the present disclosure, the base plate has a plurality of mounting holes, and the mounting holes are used to mount the head-up display visor on a dashboard of a car.

[0016] On the other hand, the present disclosure provides a car, comprising the head-up display visor as described in any one of the above aspects.

[0017] The beneficial effects brought by the technical solution provided by the embodiments of the present disclosure include at least:

[0018] In the head-up display visor provided in the embodiment of the present disclosure, the temperature sensor is used to detect the temperature of the head-up display and transmit the temperature of the head-up display to the controller in the form of an electrical signal. After receiving the electrical signal, the controller determines the temperature of the head-up display. When the temperature of the head-up display is greater than the first temperature threshold, it means that the temperature of the head-up display is high. At this time, the controller controls the motor to rotate. When the motor rotates, it drives the sunshade to move toward the output shaft, thereby blocking the rectangular opening. The light outside the car cannot pass through the rectangular opening to irradiate the head-up display, and the temperature of the head-up display will slowly decrease. When the temperature of the head-up display is less than the second temperature threshold, it means that the temperature of the head-up display has decreased at this time. The controller controls the motor to rotate in the opposite direction, and the sunshade moves toward the scroll, thereby exposing the rectangular opening. The head-up display can still provide the driver with a display screen of the car status to ensure the normal driving of the car. When the temperature of the head-up display is greater than or equal to the second temperature threshold and less than or equal to the first temperature threshold, it means that the temperature of the head-up display is neither high nor low at this time, and the motor does not work, so as to avoid the sunshade on the head-up display visor from repeatedly moving and affecting the normal operation of the head-up display. The head-up display shading cover provided by the embodiment of the present disclosure protects the display body when the temperature of the display body rises, thereby preventing the head-up display from being damaged due to excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 is a roadmap of light propagation provided by an embodiment of the present disclosure;

[0021] Figure 2 is a roadmap of light propagation provided by an embodiment of the present disclosure;

[0022] Figure 3 is a schematic structural diagram of a head-up display visor in one state provided by an embodiment of the present disclosure;

[0023] Figure 4 is a block diagram of a head-up display visor provided by an embodiment of the present disclosure;

[0024] Figure 5 is a schematic structural diagram of a head-up display visor in another state provided by an embodiment of the present disclosure;

[0025] Figure 6 is a schematic structural diagram of a head-up display visor in another state provided by an embodiment of the present disclosure;

[0026] Figure 7 is an assembly diagram of an output shaft and a cable provided in an embodiment of the present disclosure;

[0027] Figure 8 is an assembly diagram of a cable guide rail and a cable provided in an embodiment of the present disclosure;

[0028] Fig. 9 yes Figure 6 Cross-section view of the AA plane;

[0029] Fig.10 is a schematic structural diagram of a head-up display visor in another state provided by an embodiment of the present disclosure;

[0030] Fig.11 yes Fig.10 Cross-section of the middle BB surface;

[0031] Fig.12 is a schematic structural diagram of a scroll provided by an embodiment of the present disclosure;

[0032] Fig.13 is an assembly diagram of a central shaft and a sleeve provided in an embodiment of the present disclosure;

[0033] Fig.14 It is a flow chart of a head-up display hood control method provided by an embodiment of the present disclosure.

[0034] Reference numerals:

[0035] 1. Display screen; 2. Plane reflector; 3. Curved reflector; 4. Front windshield; 10. Cover; 101. Bottom plate; 102. Side wall; 103. Rectangular opening; 20. Scroll; 131. First side; 30. Sunshade; 40. Cable; 50. Motor; 501. Output shaft; 132. Second side; 60. Temperature sensor; 70. Controller; 80. Cable guide; 801. First section; 133. Third side; 134. Fourth side; 802. Second section; 803. Third section; 804. Mounting groove; 201. Mounting foot; 202. Center axis; 203. Sleeve; 90. Torsion spring; 100. Dust curtain; 111. Mounting hole; 200. Head-up display; 110. Sunshade pressure plate. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0037] Figure 1 is a light propagation route map provided by the embodiment of the present disclosure. Figure 1 The head-up display comprises a display screen 1, a plane reflector 2 and a curved reflector 3. The display screen 1 is used to display various parameters in the car, such as the speed, the driving route, etc. The picture displayed on the display screen 1 is reflected by the plane reflector 2 and the curved reflector 3 and transmitted to the front windshield 4 of the car, so that the driver can understand the state of the car in real time without lowering his head while driving, avoiding accidents and improving driving safety.

[0038] Figure 2 is a light propagation route map provided by the embodiment of the present disclosure. Figure 2 The light outside the car can be irradiated onto the curved reflector 3 through the front windshield 4 of the car, and then irradiated onto the display screen 1 after being reflected by the curved reflector 3 and the flat reflector 2. The temperature of the display screen 1 will rise after being irradiated by the light, causing the temperature of the head-up display to rise, which may easily cause damage to the head-up display.

[0039] Head-up display, also known as head-up display, includes combined head-up display (C-HUD), windshield head-up display (W-HUD) and augmented reality head-up display (AR HUD).

[0040] Figure 3 FIG. 1 is a schematic diagram of the structure of a head-up display visor in one state provided by an embodiment of the present disclosure. Figure 3The head-up display shading cover comprises: a cover body 10, a reel 20, a sunshade 30, and two cables 40. The head-up display shading cover provided in the embodiment of the present disclosure is arranged on the display screen 1.

[0041] The housing 10 has a bottom plate 101 and a side wall 102 surrounding the bottom plate 101, and the bottom plate 101 has a rectangular opening 103. The reel 20 is located inside the housing 10, and both ends of the reel 20 are mounted on the bottom plate 101. The extension direction of the reel 20 is parallel to the surface of the bottom plate 101, and the reel 20 can rotate around the center line of the reel 20. The reel 20 is arranged along the first side 131 of the rectangular opening 103. One side of the sunshade 30 is fixed to the side wall of the reel 20. One end of one of the two cables 40 is connected to one end of the other side of the sunshade 30, and one end of the other cable 40 of the two cables 40 is connected to the other end of the other side of the sunshade 30.

[0042] Figure 4 is a block diagram of a head-up display visor provided by an embodiment of the present disclosure. Figure 4 The head-up display visor further includes: a motor 50, a temperature sensor 60 and a controller 70. Figure 3 and Figure 4 The motor 50 has an output shaft 501, which is mounted on the bottom plate 101. The center line of the output shaft 501 is perpendicular to the surface of the bottom plate 101, and the output shaft 501 can rotate around the center line of the output shaft 501. The other end of each of the two cables 40 is connected to the side wall of the output shaft 501. The output shaft 501 is located in the cover body 10 and close to the second side 132 of the rectangular opening 103. The first side 131 and the second side 132 are two opposite sides of the rectangular opening 103. The temperature sensor 60 is located in the head-up display in the head-up display hood. The temperature sensor 60 is used to measure the temperature of the head-up display and convert the temperature into an electrical signal.

[0043] The controller 70 is electrically connected to the temperature sensor 60, and is used to receive the electrical signal sent by the temperature sensor 60. The controller 70 is electrically connected to the motor 50, and is also used to control the motor 50 to drive the sunshade 30 to move toward the output shaft 501 when the temperature of the head-up display indicated by the electrical signal is greater than the first temperature threshold; when the temperature of the head-up display indicated by the electrical signal is less than the second temperature threshold, the motor 50 is controlled to drive the sunshade 30 to move toward the reel 20; when the temperature of the head-up display indicated by the electrical signal is greater than or equal to the second temperature threshold and less than or equal to the first temperature threshold, the motor 50 is controlled not to work. The second temperature threshold is less than the first temperature threshold.

[0044] In the head-up display sunshade provided in the embodiment of the present disclosure, the temperature sensor 60 is used to detect the temperature of the head-up display and transmit the temperature of the head-up display to the controller 70 in the form of an electrical signal. After receiving the electrical signal, the controller 70 determines the temperature of the head-up display. When the temperature of the head-up display is greater than the first temperature threshold, it means that the temperature of the head-up display is high. At this time, the controller 70 controls the motor 50 to rotate. When the motor 50 rotates, it drives the sunshade 30 to move toward the output shaft 501, thereby blocking the rectangular opening 103. The light outside the car cannot pass through the rectangular opening 103 to irradiate the head-up display, and the temperature of the head-up display will slowly decrease. When the temperature of the head-up display is less than the second temperature threshold, it means that the temperature of the head-up display has decreased. The controller 70 controls the motor 50 to rotate in the opposite direction, and the sunshade 30 moves toward the roller 20, thereby exposing the rectangular opening 103. The head-up display can still provide the driver with a display screen of the car status to ensure the normal driving of the car. When the temperature of the head-up display is greater than or equal to the second temperature threshold and less than or equal to the first temperature threshold, it means that the temperature of the head-up display is neither high nor low, and the motor does not work, so as to prevent the sunshade 30 on the head-up display shading cover from repeatedly moving and affecting the normal operation of the head-up display. The head-up display shading cover provided by the embodiment of the present disclosure protects the display body when the temperature of the display body rises, so as to prevent the head-up display from being damaged due to excessive temperature.

[0045] In the disclosed embodiment, when the car is in the running stage, the temperature sensor 60 detects the temperature of the head-up display. The detection here can be performed periodically, and accordingly, the controller controls the motor periodically; when the car is turned off, it means that the car is about to stop running and the head-up display is not needed. In order to avoid the light outside the window irradiating the head-up display and causing the temperature of the head-up display to rise, the controller 70 controls the motor 50 to rotate and drive the sunshade 30 to move toward the output shaft 501 in response to the car about to stop running, thereby blocking the rectangular opening 103, and the light outside the car cannot pass through the rectangular opening 103 to irradiate the head-up display.

[0046] In the disclosed embodiment, the sunshade curtain 30 may be an opaque cloth. For example, the sunshade curtain 30 is a cloth with a vinyl coating to ensure the light-shielding property of the sunshade curtain 30 .

[0047] Exemplarily, the sunshade 30 is in the shape of a rectangle, one side of the rectangle is fixed to the side wall of the reel 20 , and both ends of the other side of the rectangle are connected to the cable 40 .

[0048] In one implementation of the embodiment of the present disclosure, the side walls of the two cables 40 are serrated, the output shaft 501 is sleeved with gears, and the two cables 40 are meshed with the output shaft 501 .

[0049] In the embodiment of the present disclosure, the cable 40 is equivalent to a spur rack, and the output shaft 501 is provided with a gear. The cable 40 is meshed with the gear. When the output shaft 501 rotates, the cable 40 is driven to move, and one end of the cable 40 moves with the sunshade 30, thereby driving the sunshade 30 to move.

[0050] In the embodiment of the present disclosure, the cable 40 is a bendable metal rod, and the side wall of the metal rod is serrated, which not only ensures the strength of the cable 40, but also allows the cable 40 to bend, so that the cable 40 can present Figure 3 "L" shape shown.

[0051] In the disclosed embodiment, the sunshade 30 needs to move along the extension direction of the third side 133, so the moving direction of the end of the cable 40 connected to the sunshade 30 needs to be parallel to the extension direction of the third side 133. However, the end of the cable 40 connected to the output shaft 501 moves along the extension direction of the second side 132, so the moving direction of the cable 40 needs to be changed so that the moving direction of the end of the cable 40 connected to the sunshade 30 is parallel to the extension direction of the third side 133. A positioning column can be arranged at the corner of the second side 132 and the third side 133, and at the corner of the second side 132 and the fourth side 134, and the two cables 40 are connected to the output shaft 501 after passing through the two positioning columns. In this way, the cable 40 will not block the display screen of the head-up display, and when the cable 40 moves, it can also ensure that the sunshade 30 moves along the extension direction of the third side 133.

[0052] In other implementations, the cable 40 may be a bendable rope, and when the output shaft 501 rotates, the cable 40 wraps around the side wall of the output shaft 501 , thereby pulling the sunshade 30 so that the sunshade 30 covers the rectangular opening 103 .

[0053] in, Figure 3 The middle sunshade curtain 30 does not cover the rectangular opening 103 , and at this time the sunshade curtain 30 surrounds the side wall of the rolling shaft 20 . Figure 5 FIG. 1 is a schematic diagram of the structure of a head-up display visor in another state provided by an embodiment of the present disclosure. Figure 5 Under the traction of the cable 40, the sunshade 30 has blocked the rectangular opening 103. At the same time, the ends of the two cables 40 that are not connected to the sunshade 30 move toward the third side 133 and the fourth side 134 respectively under the drive of the output shaft 501.

[0054] Figure 6 FIG. 1 is a schematic diagram of the structure of a head-up display visor in another state provided by an embodiment of the present disclosure. Figure 6The head-up display visor further includes two sets of cable guide rails 80 , one of the two cables 40 passes through one set of cable guide rails 80 in the two sets of cable guide rails 80 , and the other of the two cables 40 passes through the other set of cable guide rails 80 in the two sets of cable guide rails 80 .

[0055] In the disclosed embodiment, the cable 40 moves driven by the output shaft 501, and the cable guide rail 80 limits the movement trajectory of the cable 40 to prevent the cable 40 from moving obliquely, so that the two sides of the sunshade 30 are rolled up, thereby ensuring that the sunshade 30 can completely cover the rectangular opening 103.

[0056] See again Figure 6 Each of the two groups of cable guide rails 80 includes: a first section 801 , a second section 802 and a third section 803 . The first section 801 is fixed on the bottom plate 101, and the first section 801 is located on any one side of the third side 133 and the fourth side 134. The third side 133 and the fourth side 134 are the other two sides of the rectangular opening 103. The extension direction of the first section 801 is parallel to the extension direction of the third side 133; the second section 802 is fixed on the bottom plate 101, and the second section 802 is located on the second side 132. The second section 802 is connected to the first section 801, and the extension direction of the second section 802 is parallel to the extension direction of the second side 132; the third section 803 is fixed on the bottom plate 101, and the third section 803 is located on the second side 132. The third section 803 is spaced from the second section 802, and the opening of the third section 803 is opposite to the opening of the second section 802. The openings opposite to the third section 803 and the second section 802 are respectively located on both sides of the output shaft 501, and the extension direction of the third section 803 is the same as the extension direction of the second side 132.

[0057] In the disclosed embodiment, the cable guide 80 is arranged into multiple sections, the first section 801 is located at one side of the rectangular opening 103, the second section 802 and the third section 803 are both located at the other side of the rectangular opening 103, and the two sides are adjacent, so that the cable 40 corresponding to the cable guide 80 can only move along one side of the rectangular opening 103, thereby limiting the movement trajectory of the cable 40 and the movement trajectory of the sunshade 30, so that the sunshade 30 can completely cover the rectangular opening 103. At the same time, the output shaft 501 is arranged between the second section 802 and the third section 803, providing an installation space for the output shaft 501, and ensuring that the output shaft 501 can fit the cable 40.

[0058] Figure 7 is an assembly diagram of an output shaft and a cable provided in an embodiment of the present disclosure. Figure 7The second section 802 and the third section 803 of one set of cable guide rails 80 and the second section 802 and the third section 803 of another set of cable guide rails 80 are respectively located on both sides of the output shaft 501 , thereby ensuring that the output shaft 501 can fit with the two cables 40 .

[0059] Figure 8 is an assembly diagram of a cable guide rail and a cable provided in an embodiment of the present disclosure. Figure 8 The cable guide rail 80 is fixed on the bottom plate 101 to ensure the stability of the cable guide rail 80 . The cable 40 is located in the installation groove 804 of the cable guide rail 80 , and the cable 40 is connected to the sunshade 30 .

[0060] See again Figure 8 The head-up display visor further includes a sunshade pressing plate 110, through which the sunshade 30 passes. The sunshade pressing plate 110 is made of a relatively hard material and can ensure the flatness of the sunshade 30. Since the sunshade 30 is rolled up on the side wall of the reel 20 when not in use, the sunshade pressing plate 110 is arranged only at one end of the sunshade 30 connected to the cable 40 to prevent the sunshade pressing plate 110 from affecting the reeling of the sunshade 30.

[0061] Fig. 9 yes Figure 6 Cross-section view of the AA plane. Fig. 9 The head-up display visor further includes: a transparent dust-proof curtain 100 , and the dust-proof curtain 100 covers the rectangular opening 103 .

[0062] In the disclosed embodiment, the head-up display visor is mounted on the display screen of the head-up display 200, and the rectangular opening 103 and the display screen of the head-up display 200 are aligned, so that the image on the display screen can be transmitted through the rectangular opening 103 and finally projected onto the front windshield. To prevent dust from falling onto the display screen from the rectangular opening 103 and affecting the clarity of the display screen, the dust curtain 100 covers the rectangular opening 103.

[0063] exist Figure 6 and Fig. 9 In the head-up display sunshade shown, the sunshade curtain 30 does not completely cover the rectangular opening 103 , and the sunshade curtain 30 is wrapped around the side wall of the rolling shaft 20 . Fig.10 FIG. 1 is a schematic diagram of the structure of a head-up display visor in another state provided by an embodiment of the present disclosure. Fig.10 , the sunshade 30 completely blocks the rectangular opening 103.

[0064] Fig.11 yes Fig.10 Cross-section view of the BB plane. Fig.11 When the sunshade curtain 30 blocks the rectangular opening 103 , the sunshade curtain 30 fits with the dustproof curtain 100 .

[0065] In one implementation of the embodiment of the present disclosure, the controller 70 is electrically connected to an electronic control unit (ECU) of the automobile, and the controller 70 sends an electrical signal to the ECU.

[0066] In the disclosed embodiment, the electronic control unit of the vehicle is electrically connected to the temperature sensor 60, and the electronic control unit can monitor the temperature of the head-up display of the vehicle in real time. The controller 70 is electrically connected to the electronic control unit of the vehicle, and the electronic control unit can adjust the head-up display shading hood through the controller 70.

[0067] For example, the controller 70 may be electrically connected to an electronic control unit of the vehicle via a controller area network (CAN) bus.

[0068] In one implementation of the embodiment of the present disclosure, the first temperature threshold ranges from 80 degrees Celsius to 90 degrees Celsius.

[0069] The temperature of the head-up display will rise during normal operation. If the first temperature threshold is set too low, the display screen of the head-up display will often be blocked by the sunshade 30, affecting the driver's understanding of the state of the car. If the first temperature threshold is set too high, sunlight will still shine on the head-up display when the temperature of the head-up display is high, which may easily cause damage to the head-up display. The range of the first temperature threshold is arranged to be 80 degrees Celsius to 90 degrees Celsius, which can not only ensure that the display screen of the head-up display will not be often blocked by the sunshade 30, but also ensure that when the temperature of the head-up display is too high, the sunshade 30 can block the sunlight, thereby preventing the temperature of the head-up display from further rising and causing damage to the head-up display.

[0070] In one implementation of the embodiment of the present disclosure, the second temperature threshold ranges from 60 degrees Celsius to 70 degrees Celsius.

[0071] When the temperature of the head-up display is between 60 degrees Celsius and 70 degrees Celsius, the head-up display can work normally. If the temperature of the head-up display is set to be low, the display screen of the head-up display will be covered by the sunshade 30 for a long time, affecting the driver's understanding of the status of the car. If the temperature of the head-up display is set to be high, the high temperature will affect the normal operation of the head-up display. The range of the second temperature threshold is arranged to be 60 degrees Celsius to 70 degrees Celsius, which can not only ensure that the display screen of the head-up display will not be often blocked by the sunshade 30, but also prevent the head-up display from working when the temperature is too high, causing damage to the head-up display.

[0072] For example, the first temperature threshold is 85 degrees Celsius, and the second temperature threshold is 65 degrees Celsius.

[0073] See again Figure 3 , Figure 6 , Figure 6 and Fig.10 The bottom plate 101 has a plurality of mounting holes 111, and the mounting holes 111 are used to mount the head-up display hood on the dashboard of the car, covering the display screen 1, to ensure the stability of the head-up display hood.

[0074] Fig.12 is a structural diagram of a scroll provided by the present disclosure. Fig.12 The reel 20 includes: two mounting feet 201, a central shaft 202 and a sleeve 203. One end of the two mounting feet 201 is fixed on the bottom plate 101, and the two mounting feet 201 are arranged at intervals along the extending direction of the first side 131; both ends of the central shaft 202 are fixedly connected to the other ends of the two mounting feet 201; the sleeve 203 is sleeved on the central shaft 202.

[0075] In the disclosed embodiment, two mounting feet 201 are used to fix the central axis 202, and the sleeve 203 is sleeved on the central axis 202, so that the sleeve 203 can rotate around the central axis 202. When the sleeve 203 rotates forward, the sunshade 30 is rolled up on the sleeve 203. When the output shaft 501 rotates forward, the cable 40 is driven to move, and the sleeve 203 is reversed, so that the sunshade 30 moves toward the output shaft 501 to cover the rectangular opening 103.

[0076] Fig.13 1 is an assembly diagram of a central shaft and a sleeve provided by the present disclosure. Fig.13 The head-up display visor further includes: a torsion spring 90 , a central sleeve of the torsion spring 90 is fixed on the central axis 202 , and both ends of the torsion spring 90 are fixed on the inner side wall of the sleeve 203 .

[0077] In the disclosed embodiment, when the output shaft 501 is reversed, the cable 40 moves toward the reel 20. However, if the sleeve 203 does not rotate at this time, the sunshade 30 cannot be rolled onto the sleeve 203, causing wrinkles to form on the sunshade 30. A torsion spring 90 is arranged on the central shaft 202 and the sleeve 203. When the output shaft 501 rotates forward, the sleeve 203 is driven to rotate, and the two ends of the torsion spring 90 rotate with the sleeve 203. However, the center of the torsion spring 90 is fixed on the central shaft 202, so that the relative positions of the two ends of the torsion spring 90 and the center of the torsion spring 90 change. However, under the action of the pulling force of the sunshade 30, the torsion spring 90 cannot be restored to its original state. When the output shaft 501 reverses, the pulling force of the sunshade 30 on the sleeve 203 disappears, and the sleeve 203 rotates under the thrust of the torsion spring 90, and the torsion spring 90 returns to its original state and rolls the sunshade 30 around the sleeve 203, completing the winding of the sunshade 30 and preventing the sunshade 30 from forming wrinkles.

[0078] The disclosed embodiment also provides a method for controlling a head-up display shading hood, the method being used to control the head-up display shading hood. Fig.14 is a flow chart of a method for controlling a head-up display visor provided by an embodiment of the present disclosure. Fig.14 , the method comprising:

[0079] In step S141, an electrical signal is received.

[0080] Among other things, the electrical signal is used to indicate the temperature of the head-up display.

[0081] In step S142, when the temperature of the head-up display indicated by the electrical signal is greater than a first temperature threshold, the motor is controlled to drive the sunshade to move toward the output shaft.

[0082] In step S143, when the temperature of the head-up display indicated by the electrical signal is less than the second temperature threshold, the motor is controlled to drive the sunshade to move toward the roller.

[0083] In step S144 , when the temperature of the head-up display indicated by the electrical signal is greater than or equal to the second temperature threshold and less than or equal to the first temperature threshold, the motor is controlled not to operate.

[0084] In the head-up display visor provided in the embodiment of the present disclosure, the temperature sensor is used to detect the temperature of the head-up display and transmit the temperature of the head-up display to the controller in the form of an electrical signal. After receiving the electrical signal, the controller determines the temperature of the head-up display. When the temperature of the head-up display is greater than the first temperature threshold, it means that the temperature of the head-up display is high. At this time, the controller controls the motor to rotate. When the motor rotates, it drives the sunshade to move toward the output shaft, thereby blocking the rectangular opening. The light outside the car cannot pass through the rectangular opening to irradiate the head-up display, and the temperature of the head-up display will slowly decrease. When the temperature of the head-up display is less than the second temperature threshold, it means that the temperature of the head-up display has decreased at this time. The controller controls the motor to rotate in the opposite direction, and the sunshade moves toward the scroll, thereby exposing the rectangular opening. The head-up display can still provide the driver with a display screen of the car status to ensure the normal driving of the car. When the temperature of the head-up display is greater than or equal to the second temperature threshold and less than or equal to the first temperature threshold, it means that the temperature of the head-up display is neither high nor low at this time, and the motor does not work, so as to avoid the sunshade on the head-up display visor from repeatedly moving and affecting the normal operation of the head-up display. The head-up display shading cover provided by the embodiment of the present disclosure protects the display body when the temperature of the display body rises, thereby preventing the head-up display from being damaged due to excessive temperature.

[0085] The embodiment of the present disclosure also provides a car, the car includes: Figures 3 to 13 A head-up display visor as shown in any one of the accompanying drawings.

[0086] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A head-up display visor, characterized in that: The head-up display visor comprises: A cover body (10) comprising a bottom plate (101) and a side wall (102) surrounding the bottom plate (101), wherein the bottom plate (101) has a rectangular opening (103); A reel (20) is located inside the cover body (10), two ends of the reel (20) are mounted on the bottom plate (101), an extension direction of the reel (20) is parallel to the surface of the bottom plate (101), and the reel (20) can rotate around a center line of the reel (20), and the reel (20) is arranged along a first side edge (131) of the rectangular opening (103); A sunshade curtain (30), one side of which is fixed to the side wall of the reel (20); Two cables (40), one end of one of the two cables (40) is connected to one end of the other side of the sunshade (30), one end of the other of the two cables (40) is connected to the other end of the other side of the sunshade (30), the side walls of the two cables (40) are sawtooth-shaped, the output shaft (501) is sleeved with a gear, and the side walls of the two cables (40) are respectively meshed with the gear from both sides of the gear; The motor (50) comprises an output shaft (501), wherein the output shaft (501) is mounted on the base plate (101), wherein the center line of the output shaft (501) is perpendicular to the surface of the base plate (101), wherein the other end of each of the two cables (40) is connected to the side wall of the output shaft (501), wherein the output shaft (501) is located inside the cover body (10) and close to the second side edge (132) of the rectangular opening (103), wherein the first side edge (131) and the second side edge (132) are two opposite sides of the rectangular opening (103); A temperature sensor (60), located in the head-up display within the head-up display visor, the temperature sensor (60) is used to measure the temperature of the head-up display and convert the temperature into an electrical signal; A controller (70) is used to receive the electrical signal, and when the temperature of the head-up display indicated by the electrical signal is greater than a first temperature threshold, control the motor (50) to drive the sunshade (30) to move toward the output shaft (501); when the temperature of the head-up display indicated by the electrical signal is less than a second temperature threshold, control the motor (50) to drive the sunshade (30) to move toward the roller (20); when the temperature of the head-up display indicated by the electrical signal is greater than or equal to the second temperature threshold and less than or equal to the first temperature threshold, control the motor (50) not to work; Positioning posts are provided at the corners between the second side (132) and the third side (133), and at the corners between the second side (132) and the fourth side (134); the two cables (40) are connected to the output shaft (501) after passing around the two positioning posts respectively; Two sets of cable guide rails (80), one cable (40) of the two cables (40) passes through one set of cable guide rails (80) of the two sets of cable guide rails (80), and the other cable (40) of the two cables (40) passes through the other set of cable guide rails (80) of the two sets of cable guide rails (80), and the two sets of cable guide rails (80) are located in the cover body (10); Each of the two sets of cable guide rails (80) comprises: A first section (801) is fixed on the bottom plate (101), the first section (801) is located on any one side of the third side (133) and the fourth side (134), the third side (133) and the fourth side (134) are the other two sides of the rectangular opening (103), and the extension direction of the first section (801) is parallel to the extension direction of the third side (133); a second section (802) fixed on the bottom plate (101), the second section (802) being located on the second side edge (132), the second section (802) being connected to the first section (801), and the extension direction of the second section (802) being parallel to the extension direction of the second side edge (132); The third section (803) is fixed on the bottom plate (101), the third section (803) is located on the second side edge (132), the third section (803) is spaced apart from the second section (802), and an opening of the third section (803) is opposite to an opening of the second section (802), the openings of the third section (803) and the second section (802) are respectively located on two sides of the output shaft (501), and an extension direction of the third section (803) is the same as an extension direction of the second side edge (132).

2. The head-up display visor according to claim 1, characterized in that: The reel (20) comprises: two mounting feet (201), one end of each of the two mounting feet (201) being fixed on the bottom plate (101), and the two mounting feet (201) being arranged at intervals along the extension direction of the first side edge (131); A central axis (202), wherein both ends of the central axis (202) are respectively fixedly connected to the other ends of the two mounting feet (201); The sleeve (203) is sleeved on the central shaft (202).

3. The head-up display visor according to claim 2, characterized in that: The head-up display visor further comprises: A torsion spring (90), wherein the central sleeve of the torsion spring (90) is fixed on the central axis (202), and both ends of the torsion spring (90) are fixed on the inner wall of the sleeve (203).

4. The head-up display visor according to claim 1, characterized in that: The controller (70) is electrically connected to an electronic control unit of the vehicle, and is also used to send the electrical signal to the electronic control unit.

5. The head-up display visor according to claim 1, characterized in that: The first temperature threshold ranges from 80 degrees Celsius to 90 degrees Celsius, and the second temperature threshold ranges from 60 degrees Celsius to 70 degrees Celsius.

6. The head-up display visor according to claim 1, characterized in that: The head-up display visor further comprises: A transparent dust-proof curtain (100) covers the rectangular opening (103).

7. The head-up display visor according to claim 1, characterized in that: The bottom plate (101) is provided with a plurality of mounting holes (111), and the mounting holes (111) are used to mount the head-up display visor on a dashboard of a car.

8. A car, characterized in that: The automobile comprises a head-up display visor according to any one of claims 1 to 7.

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