A large-sized electric sunroof

Abstract

The present invention provides a large-sized electric sunroof, which includes a sunroof cover, an L-shaped guide rail and a linear guide rail. One L-shaped guide rail is installed on each side of the sunroof cover, and the two L-shaped guide rails are parallel to each other. Taking the closed position of the sunroof cover as the front and the open position as the rear, the front section of the L-shaped guide rail is bent or inclined downward; a number of bearings are arranged on both sides of the sunroof cover, and the bearings move back and forth along the L-shaped guide rail; two linear guide rails are arranged in parallel between the two L-shaped guide rails, and racks are installed on the linear guide rails; a support on the lower surface of the sunroof cover is connected to a slider through a hinged connecting rod, and the slider moves back and forth along the linear guide rail; a gear is installed on the sunroof cover and meshes with the rack, and drives the sunroof cover to move back and forth under the drive of a motor. The transmission structure of the present invention has better straightness and smaller deformation, improves the stability and reliability of the sunroof, and is suitable for the design of large-sized sunroofs.

Description

Technical Field

[0001] The present invention relates to an electric sunroof, which is applied to the technical field of mobile shelters or other roofs with large openings that require movable sunroofs. Background Art

[0002] In the field of mobile shelter technology applications, to meet the usage requirements of equipment inside the mobile shelter extending outside the shelter, it is required that there be an opening at the top of the mobile shelter and an electric sunroof structure be installed to achieve the opening and closing of the sunroof. Electric sunroofs can be divided into two opening methods: rotary opening and translational opening. For sunroofs with limited height, the sunroof structure often adopts the translational opening form. The traditional translational electric sunroof structure forms are mainly the lead screw-nut structure or the gear-rack structure.

[0003] In the lead screw-nut structure, the motor drives the lead screw to rotate, thereby driving the moving slider to move forward. The moving slider drives the sunroof cover to move forward along the two side rails through a connecting rod. However, due to the fact that the lead screw itself has a certain deflection, if the sunroof opening is large, the sunroof movement stroke is large, and the lead screw is too long, its own deflection is large, and it will have a certain deformation, resulting in a middle sinking phenomenon, thereby causing the slider to get stuck during the movement. Therefore, for sunroofs with a large top opening, this structure has certain limitations.

[0004] In the existing gear-rack structure, the rack is fixed inside the sunroof cover. The motor drives the gear-rack to move. The sunroof cover is hoisted under the slide rail through a bracket. There are rollers on the slide rail, the opening of the slide rail faces downward, and the rollers drive the bracket to drive the sunroof to slide inside the slide rail, and the sunroof moves along the direction of the slide rail. In this kind of structural design, since the sunroof cover is hoisted under the slide rail through a bracket, affected by the gravity of the sunroof cover, the slide rail is subjected to a downward pulling force for a long time and is prone to deformation over time, which easily causes the pulley movement to get stuck, and the pulley is installed inside and is not easy to repair, having certain defects. In addition, in this kind of structural sealing method, since the rack is fixed inside the sunroof cover, the sunroof cover can only move horizontally. The rainproof purpose is achieved by the end of the sunroof cover contacting the sealing strip and installing a rain shield on the upper part. This sealing method is prone to water accumulation and the rainproof effect has defects.

[0005] In addition to the lead screw-nut structure and the gear-rack structure, electric sunroofs are also often used in cars. The electric sunroof of a car mainly consists of glass, a sunshade, a drive motor and gears, a sliding screw, an ECU, a relay, etc. When working, the drive motor is decelerated through a worm, a worm gear and an intermediate gear, and the power is transmitted to the drive gear, and the drive gear transmits the power to the sliding screw to drive the roof glass to slide back and forth. The electric sunroof structure of a car is suitable for sunroof openings with relatively small sizes, and the sunroof cover is often made of glass and has a small load-bearing capacity. Therefore, this structural form is not applicable to the usage scenarios of large top openings and large loads in mobile shelters. Summary of the Invention

[0006] In order to overcome the deficiencies of the prior art, the present invention provides a large-sized electric sunroof, which has better straightness of the transmission structure and smaller deformation, is suitable for the design of large-sized sunroofs, and improves the stability and reliability of the sunroof. At the same time, the present invention adopts a multi-layer sealing design, which can improve the rainproof and dustproof performance. In addition, the present invention adopts a top maintenance opening design, which is convenient for manual disconnection during power failure, and greatly improves the maintainability and reliability of the product.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a large-sized electric sunroof, including a sunroof cover, an L-shaped guide rail and a linear guide rail.

[0008] One L-shaped guide rail is installed on each side of the sunroof cover. The two L-shaped guide rails are parallel to each other. With the closed position of the sunroof cover as the front and the open position as the rear, the front section of the L-shaped guide rail bends or inclines downward. A number of bearings are provided on both sides of the sunroof cover, and the bearings move back and forth along the L-shaped guide rail. Two linear guide rails are arranged in parallel between the two L-shaped guide rails, and racks are installed on the linear guide rails. The support on the lower surface of the sunroof cover is connected to the slider through a hinged connecting rod, and the slider moves back and forth along the linear guide rail. A gear is installed on the sunroof cover and meshes with the rack, and drives the sunroof cover to move back and forth under the drive of the motor.

[0009] The motor is connected to the steering box through a motor reducer, and the steering box realizes direction conversion and secondary deceleration of the motor output. The steering box synchronously drives the gears at both ends to move along the rack through the connecting shaft, and the connecting shaft is supported by a bearing seat.

[0010] The motor selected is a power-off braking motor, which has a self-locking function, and the motor stops rotating immediately when power is cut off.

[0011] Proximity switches are installed at both the open and closed in-place positions of the sunroof cover to control the operation of the motor.

[0012] Baffles are respectively arranged at the front and rear ends of the lower surface of the sunroof cover. A surrounding plate is arranged around the opening on the top of the shelter. A sealing strip is installed along the upper edge of the surrounding plate. When the sunroof cover is closed, it falls along the L-shaped guide rail, and the lower surface and the front and rear baffles of the sunroof cover squeeze the sealing strip to achieve the sealing of the opening.

[0013] A maintenance opening is provided at the front end of the sunroof cover, which penetrates the upper and lower surfaces of the sunroof cover, and a maintenance opening cover is covered on the maintenance opening.

[0014] The beneficial effects of the present invention are:

[0015] (1) The present invention solves the problems existing in the existing lead screw nut structure for large-size sunroof structures, such as excessive self-deflection and easy deformation, and the problems existing in the existing rack and pinion sunroof structure, such as deformation under long-term force, motion jamming, and poor stability. The new electric sunroof drive structure adopts a double-rail layout design, that is, both the rack and the sunroof cover move along their respective rails. The two L-shaped rails on both sides play a supporting role for the sunroof cover, with better force, stronger stability, and smaller deformation, which is very suitable for large-size sunroof design and greatly improves the stability and reliability of the sunroof.

[0016] (2) The design of the jacking mechanism, front and rear baffles, and apron in the present invention realizes the disconnection and pressing of the sunroof cover and the sealing strip during the opening and closing of the sunroof, effectively blocking rainwater and dust from entering the cabin, providing multiple guarantees and achieving a good sealing effect.

[0017] The jacking mechanism realizes the lifting and lowering of the sunroof in the height direction during the opening and closing process. During the entire process of the sunroof movement, the height of the sunroof cover is lifted by 30 mm, and the sunroof cover is disconnected from the sealing strip; when the sunroof cover is closed, the sunroof cover moves along the L-shaped rail, and finally the height drops by 30 mm, and the sunroof cover contacts and presses the sealing strip, greatly improving the water tightness and air tightness.

[0018] In addition, front and rear baffles are provided at both ends of the sunroof cover, and a circle of apron is provided at the effective opening, and sealing strips are installed on it at the same time. During the opening and closing process of the sunroof, the disconnection and pressing of the sealing strip are realized, effectively blocking rainwater and dust from entering the cabin, providing double guarantees.

[0019] (3) The present invention is provided with a maintenance opening at the top of the sunroof. On the one hand, it is convenient for the maintenance of the sunroof in case of failure; on the other hand, it is convenient to manually disconnect the connecting rod during power failure to realize the mechanical opening of the sunroof. When the sunroof fails or is powered off, if you want to open the sunroof, you can open the maintenance opening cover, disconnect the connecting rod and the slider, and push the sunroof by hand to realize the opening of the sunroof, greatly improving the maintainability and reliability of the product. Brief Description of the Drawings

[0020] Figure 1 is a schematic diagram of the existing sunroof structure;

[0021] Figure 2 is a schematic diagram of the existing sunroof structure;

[0022] Figure 3 is a top view of the present invention;

[0023] Figure 4 is Figure 3 the view in the A-A direction of

[0024] Figure 5 is Figure 3 the view in the B-B direction of

[0025] Figure 6 is Figure 3 the C-C direction view of;

[0026] Figure 7 is Figure 3 the D-D direction view of;

[0027] Figure 8 is Figure 3 the E-E direction view of;

[0028] Figure 9 is Figure 3 the F-F direction view of;

[0029] Figure 10 is the schematic diagram of the movement process of the jacking mechanism when the skylight opens and closes;

[0030] In the figure, 1 - shelter, 2 - L-shaped guide rail, 3 - linear guide rail, 4 - bearing seat, 5 - skylight cover, 6 - proximity switch bracket, 7 - bearing, 8 - rain shield, 9 - support, 10 - connecting rod, 11 - moving slider, 12 - maintenance hatch cover, 13 - sealing strip, 14 - baffle, 15 - rack, 16 - slider, 17 - rain cover, 18 - motor reducer, 19 - steering gear, 20 - enclosing plate, 21 - gear, 22 - connecting shaft. Specific embodiments

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0032] The present invention provides a large-sized new type of electric skylight.

[0033] The electric skylight mainly consists of parts such as a skylight cover, an L-shaped guide rail, a support, a bearing, a motor reducer, a steering gear, a gear, a rack, a connecting rod, a bearing seat, a moving slider, a linear guide rail, an enclosing plate, and a sealing strip. The overall layout is as Figure 3 shown. Two parallel L-shaped guide rails are arranged on both sides of the skylight cover, and the skylight cover is connected to the L-shaped guide rail through a support; two linear guide rails parallel to them are arranged inside the two L-shaped guide rails to fix the rack; the motor reducer is connected to the steering box, and both sides of the steering box are connected to the gear through a connecting shaft and a bearing seat.

[0034] The transmission part of the electric skylight mainly consists of a motor reducer, a steering box, a coupling, a connecting shaft, a bearing seat, a gear, a rack, a moving slider, and a connecting rod. The motor reducer is the power execution element of the electric skylight; the steering box realizes the conversion of direction and secondary deceleration; the bearing seat supports the connecting shaft; the connecting shaft is responsible for power transmission; the rotational motion of the motor reducer is converted into the linear motion of the rack through the gear. The connecting rod connects the skylight and the moving slider, and the linear motion of the rack is transmitted to the skylight through the moving slider and the connecting rod, driving the skylight to do linear motion.

[0035] The working principle of the electric sunroof is as follows: After the electric sunroof motor is powered on, the motor drives the reduction gearbox and the connecting shaft to rotate, thereby driving the rack and pinion movement. The moving slider fixed on the rack moves forward with the rack, thereby driving the connecting rod to rotate to lift and move the sunroof cover forward. The rolling bearings on both sides of the lower part of the sunroof cover climb up along the L-shaped guide rail and then move in a straight line. Proximity switches are installed at both the opening and closing positions of the sunroof to control the operation of the motor.

[0036] The lifting mechanism realizes the lifting and lowering of the sunroof in the height direction during the opening and closing process, so as to achieve a good sealing effect. When the sunroof is opened, the moving slider moves forward with the rack, thereby driving the connecting rod to rotate to lift and move the sunroof cover forward. The rolling bearings on both sides of the lower part of the sunroof cover climb up along the L-shaped guide rail and then move in a straight line. During the whole process, the height of the sunroof cover is lifted by 30mm, and the sunroof cover is disengaged from the sealing strip; when the sunroof cover is closed, the sunroof cover moves along the L-shaped guide rail, and finally the height drops by 30mm, and the sunroof cover contacts and presses the sealing strip to achieve the sealing effect. The whole movement process is as Figure 10 shown.

[0037] Design of baffle and apron: Front and rear baffles are set at both ends of the sunroof cover, and an apron is set around the effective opening, as Figure 8 shown. Sealing strips are installed on them at the same time. During the opening and closing process of the sunroof, it is disengaged from and pressed against the sealing strip, effectively blocking rainwater and dust from entering the cabin, with double protection to achieve a good sealing effect.

[0038] The sunroof uses a three-phase 380V motor as the power actuator for opening or closing the sunroof. The sunroof control button is on the distribution box panel. When the shelter is opened and the switch S31 is pressed, the contactor K31 is powered on at this time, and the three-phase motor rotates forward. The motor drives the sunroof through the reduction gear, so that the sunroof moves to open. When the action is in place, the sunroof open-in-place indicator light is on, and the sunroof drive motor stops working; when the switch S32 is pressed, the contactor K32 is powered on, and the three-phase motor rotates in the reverse direction. The motor drives the sunroof to move in the closing direction through the reduction gear. When the action is in place, the sunroof closed indicator light is on, and the sunroof drive motor stops working.

[0039] The motor selects a power-off braking motor, which has a self-locking function, that is, the motor will stop rotating immediately when powered off, and there will be no forward and reverse rotation phenomenon. It avoids the accidental opening of the sunroof and improves the reliability of the electric sunroof.

[0040] Design of the maintenance port. A maintenance port is set at the front end of the sunroof cover, which is convenient for manually disengaging the connecting rod during power-off to realize the mechanical opening of the sunroof; when the sunroof fails or is powered off, the maintenance port cover can be opened, the connecting rod and the slider can be disengaged,

[0041] and the sunroof can be pushed by hand to open the sunroof.

[0042] The embodiment of the present invention provides a new large-size electric skylight, which is applied to the top of the cabin with a size of 2600mm×

[0043] The 1800mm opening adopts a new gear rack structure to realize the horizontal opening and closing function of the skylight, and is equipped with

[0044] The corresponding power distribution system has the function of manual opening and closing during power failure, which is easy to operate and has good reliability, maintainability and sealing.

[0045] (1) Main components and overall layout of electric sunroof

[0046] The main components of the electric sunroof: The electric sunroof is mainly composed of a sunroof cover, L-shaped guide rails, bearings, motor reducer, gears, racks, connecting rods, bearing seats, moving sliders, linear guides, proximity switches, enclosures and sealing strips.

[0047] 5 Overall layout: The skylight is installed on the top of the shelter, such as Figure 3 As shown, two parallel L-shaped guide rails are arranged on both sides of the skylight cover.

[0048] The sunroof opens and closes along the guide rails; two linear guide rails parallel to the two L-shaped guide rails are arranged on the inner side to fix the rack; the motor reducer and steering gear are arranged in the front part of the sunroof cover, and the two ends of the steering gear are connected to the gears through connecting rods to realize power transmission.

[0049] Installation steps: When installing the skylight, first fix the linear guide rail on the top of the cabin according to the installation size. After the rack is connected to the moving slider through the transition plate, slide the rack and the moving slider along the slide rail to the starting position; then install

[0050] The motor reducer is connected to the steering box. The two sides of the steering box are connected to the gears on both sides through the connecting shaft and the bearing seat, so that the gears and racks on both sides can mesh normally without any jamming. The coaming is installed around the effective opening of the top of the cabin, and the sealing strip is installed on it at the same time. The skylight is separated from and pressed against the sealing strip during opening and closing. L-shaped guide rails are installed on both sides to ensure their parallelism with the linear guide rails. The skylight cover is connected to the L-shaped guide rails through the support and bearings.

[0051] 5 This embodiment includes the following components:

[0052] Sunroof cover: The main structural component of the electric sunroof, composed of aluminum skin, frame and polyurethane foam board, quality

[0053] Lightweight and strong enough to withstand the external pressure of a portion of the skylight cover;

[0054] L-shaped guide rail: It is the support of the entire skylight structure. Two parallel L-shaped guide rails are arranged on both sides. The skylight cover is connected to the guide rails through supports and bearings;

[0055] Bearing: The main actuator for the movement of the power sunroof. The sunroof cover is connected to the guide rail through a support and a bearing, and the bearing moves in the guide rail to achieve the translational movement of the power sunroof;

[0056] Motor reducer: The power actuator for the power sunroof;

[0057] Steering box: Achieves the conversion of direction and secondary speed reduction;

[0058] Bearing seat: Supports the connecting shaft;

[0059] Connecting shaft: Responsible for power transmission;

[0060] Gear and rack: The main transmission components of the sunroof; the rotational movement of the motor reducer is converted into the linear movement of the rack through the gear. The connecting rod connects the sunroof and the moving slider, and the linear movement of the rack is transmitted to the sunroof through the moving slider and the connecting rod, driving the sunroof to move linearly.

[0061] Moving slider: Responsible for power transmission. The moving slider moves linearly along with the rack, thereby driving the connecting rod to rotate to lift and move the sunroof cover forward.

[0062] Linear guide rail: The support component for the linear movement of the rack;

[0063] Proximity switch: Installed at the front and rear of the sunroof. The opening and closing of the sunroof are in place to control the operation of the motor through the proximity switch.

[0064] Enclosure panel and sealing strip: The sealing components of the power sunroof. An enclosure panel is installed around the effective opening of the sunroof cover, and a sealing strip is installed on it at the same time. During the opening and closing process of the sunroof, it is disengaged and pressed against the sealing strip, effectively blocking rainwater and dust from entering the cabin and achieving a good sealing effect.

[0065] (2) Working parameters of the power sunroof

[0066] Effective opening distance: ≥ 2600;

[0067] When the sunroof cover is in the closed state, the distance between the cover top and the cabin top: ≤ 200 mm;

[0068] Electric opening time: ≤ 3 min;

[0069] Manual opening torque: ≤ 60 Nm;

[0070] Manual opening time: ≤ 3 min;

[0071] External force that the sunroof cover can withstand: ≤ 100 kg;

[0072] Temperature requirements: -25°C to +50°C (working), -40°C to +70°C (non-working);

[0073] Motor power consumption: ≤ 200W.

[0074] (3) Working principle of the electric sunroof

[0075] After the electric sunroof motor is powered on, the motor drives the reduction gear and the connecting shaft to rotate, thereby driving the rack and pinion movement. The moving slider fixed on the rack moves forward with the rack, thereby driving the connecting rod to rotate to lift and move the sunroof cover forward, as Figure 5 shown. The rolling bearings on both sides of the lower part of the sunroof cover climb up the L-shaped guide rail and then move in a straight line. Proximity switches are installed at the opening and closing positions of the sunroof to control the operation of the motor.

[0076] (4) Structural features of the electric sunroof

[0077] Design of the lifting mechanism:

[0078] The lifting mechanism realizes the lifting and lowering of the sunroof in the height direction during the opening and closing process. When the sunroof is opened, the moving slider moves forward with the rack, thereby driving the connecting rod to rotate to lift and move the sunroof cover forward. The rolling bearings on both sides of the lower part of the sunroof cover climb up the L-shaped guide rail and then move in a straight line. During the whole process, the height of the sunroof cover is lifted by 30mm, and the sunroof cover is disengaged from the sealing strip; when the sunroof cover is closed, the sunroof cover moves along the L-shaped guide rail, and finally the height drops by 30mm. The sunroof cover contacts and presses the sealing strip to achieve the sealing effect, as Figure 10 shown.

[0079] Design of the baffle and the apron:

[0080] Design of the baffle and the apron: Front and rear baffles are provided at both ends of the front and rear of the sunroof cover, and a circle of aprons is provided at the effective opening. Sealing strips are installed on them at the same time. During the opening and closing process of the sunroof, it is disengaged from and pressed against the sealing strip, effectively blocking rainwater and dust from entering the cabin, with double protection to achieve a good sealing effect, as Figure 8 shown.

[0081] Design of the maintenance opening:

[0082] A maintenance opening is provided at the front end of the sunroof cover. In the case where the electric function cannot be used, the sunroof can be opened manually, as Figure 5 shown.

Claims

1. A large-sized electric sunroof, comprising a sunroof cover, an L-shaped guide rail, and a linear guide rail, characterized in that On both sides of the skylight cover, an L-shaped guide rail is installed respectively. The two L-shaped guide rails are parallel to each other. Taking the closed position of the skylight cover as the front and the open position as the rear, the front section of the L-shaped guide rail bends or inclines downward; several bearings are arranged on both sides of the skylight cover, and the bearings move back and forth along the L-shaped guide rail; two linear guide rails are arranged in parallel between the two L-shaped guide rails, and racks are installed on the linear guide rails; the support on the lower surface of the skylight cover is connected to a slider through a hinged connecting rod, and the slider moves back and forth along the linear guide rail; a gear is installed on the skylight cover, which meshes with the rack and drives the skylight cover to move back and forth under the drive of the motor; during the opening process of the skylight, the height of the skylight cover rises, and during the closing process of the skylight, the height of the skylight cover drops; The motor is connected to a steering box through a motor reducer, and the steering box realizes direction conversion and secondary deceleration for the output of the motor; the steering box drives the gears at both ends to move along the rack synchronously through a connecting shaft, and the connecting shaft is supported by a bearing seat; a maintenance opening is arranged at the front end of the skylight cover, which penetrates the upper and lower surfaces of the skylight cover, and a maintenance opening cover is covered on the maintenance opening.

2. The large-sized electric sunroof according to claim 1, characterized in that, The selected motor is a power-off brake motor with a self-locking function, and the motor stops rotating immediately when the power is cut off.

3. The large-sized electric sunroof according to claim 1, wherein Proximity switches are installed at the in-place positions of the opening and closing of the skylight cover to control the operation of the motor.

4. The large-size electric sunroof according to claim 1, wherein Baffles are respectively arranged at the front and rear ends of the lower surface of the skylight cover. A surrounding plate is arranged around the opening at the top of the shelter. A sealing strip is installed along the upper edge of the surrounding plate. When the skylight cover closes, it falls along the L-shaped guide rail, and the lower surface of the skylight cover and the front and rear baffles squeeze the sealing strip to achieve the sealing of the opening.

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