Emergency opening structure of automobile electrically-driven hood

Abstract

The utility model discloses an automobile electric mouth lid emergency opening structure, including the casing, the movable setting of execution rod is established on the casing, be provided with the drive rod of execution rod screw connection in the casing to drive the drive component that the drive rod rotates, the drive rod rotates to make execution rod telescopic activity along its axis, the emergency opening component is connected on the casing, and the emergency opening component includes the drive seat of rotation setting on the casing and drive the rotation of traction piece of drive seat, and the drive rod part is driven seat transmission connection and is drawn out of the casing.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically to an emergency opening structure for an electric car hatch. Background Technology

[0002] Car covers are protective structures on the surface of a car body used to cover functional components. Their main functions include: protecting core components such as the engine, fuel tank, and charging port from dust and rainwater corrosion; reducing the entry of debris during driving through a sealed design; maintaining the overall streamlined shape of the car body; reducing wind resistance; and making the car body lines more complete. Currently, car covers are generally driven by an actuator structure.

[0003] For example, CN 217812997 U discloses a rotary opening charging port cover actuator, which includes a housing, a bottom cover at the bottom of the housing, and a connecting buckle at the top of the housing for connecting with the charging port cover plate. The housing is hollow, and a drive motor is installed on one side of the bottom of the housing. The output shaft of the drive motor is connected to a worm gear. A guide sleeve, an output shaft, and a worm wheel screw are sequentially connected inside the housing. The worm wheel screw has an external thread, and a worm wheel is provided at the bottom of the worm wheel screw. The worm wheel meshes with the worm gear.

[0004] However, the actuators of existing car door covers lack an emergency opening structure. Once a circuit failure, mechanical jamming, or deformation of parts after a vehicle collision occurs, the conventional opening device may fail, making it impossible to open the fuel tank cap, charging port cover, etc. This not only affects basic use such as refueling and charging, but may also hinder operation during emergency rescue, resulting in a shortcoming in emergency response after functional failure. Utility Model Content

[0005] To address the technical problems existing in the background art, this utility model proposes an emergency opening structure for an electric car hatch.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: An emergency opening structure for an electric car hatch includes a housing, an actuator rod movably disposed on the housing, a drive rod threadedly connected to the actuator rod inside the housing, and a drive assembly for rotating the drive rod. The rotation of the drive rod causes the actuator rod to extend and retract along its axis. An emergency opening assembly is connected to the housing. The emergency opening assembly includes a drive seat mounted on the housing and a traction member that drives the drive seat to rotate. The drive rod extends out of the housing and is connected to the drive seat in a transmission manner.

[0007] Preferably, the bottom of the drive rod has transmission teeth, and the drive seat has a transmission cavity for the drive rod to be inserted. The cavity wall of the transmission cavity has a transmission section, and the transmission teeth mesh with the transmission section. With the above improvements, when it is necessary to open the cover in an emergency, the drive seat can be pulled by the traction member, so that the transmission section on the drive seat and the transmission teeth can be engaged. As the drive seat rotates, the transmission section will drive the transmission teeth to rotate, causing the drive rod to rotate and pushing the actuator rod out of the housing, thereby realizing the emergency opening of the cover.

[0008] Preferably, the cavity wall of the transmission cavity is further provided with a clearance section. The drive seat has an initial position and an unlocked position. When the drive seat is in the initial position, the transmission teeth are in the clearance section, and a clearance gap is formed between the transmission teeth and the clearance section. When the drive seat is in the unlocked position, the transmission teeth are engaged with the transmission section. Through the above improvements, under normal conditions, the transmission teeth are in the clearance section to prevent the transmission teeth from contacting the drive seat when rotating. When emergency unlocking is required, the drive seat rotates under the action of the traction member, so that the transmission teeth are engaged with the transmission section, thereby driving the drive rod to rotate.

[0009] Preferably, the bottom of the housing has a rotating guide post, the drive seat is rotatably mounted on the rotating guide post, an elastic element is sleeved on the rotating guide post, the bottom of the housing has a first abutting protrusion, the drive seat has a second abutting protrusion, one end of the elastic element abuts the first abutting protrusion, and the other end abuts the second abutting protrusion, so that the transmission segment always has a tendency to move away from the transmission teeth. Through the above improvements, the elastic element acts on the drive seat, so that after unlocking, the drive seat will automatically reset, and the transmission segment always has a tendency to move away from the transmission teeth, thereby ensuring that the transmission teeth are in the avoidance section under normal use.

[0010] Preferably, the traction member has a snap-fit ​​protrusion, and the drive seat has a snap-fit ​​groove for inserting the snap-fit ​​protrusion. Through the above improvements, the snap-fit ​​protrusion and the snap-fit ​​groove are used to cooperate, which not only improves the stability of the traction member installation, but also greatly improves the convenience of the traction member.

[0011] Preferably, the drive seat has a winding groove for inserting the traction member. With the above improvements, the winding groove can guide the traction member during the pulling of the drive seat, thereby improving the stability of the drive seat during rotation. The traction member can also be wound around the winding groove, improving the convenience of storage.

[0012] Preferably, the drive assembly includes a drive unit and a transmission gear set that is connected to the output section of the drive unit. The drive rod has drive teeth that mesh with the output end of the transmission gear set. Through the above improvements, the drive unit drives the transmission gear set to rotate, thereby driving the drive rod to rotate, so as to force the actuator rod to rotate and extend out of the housing. The actuator rod has a large thrust when it extends to cope with severe weather conditions such as icing in the cover area.

[0013] Preferably, a guide block is provided inside the housing, and a guide protrusion is formed on the guide block. A spiral track groove is formed on the outer periphery of the actuator rod for the guide protrusion to be inserted. Through the above improvement, the guide protrusion is inserted into the spiral track groove, so that as the drive rod rotates, the actuator rod will extend and retract on the housing, and the stability of the actuator rod during the sliding process can be guaranteed.

[0014] Preferably, an abutment piece is formed on the outer periphery of the actuator rod, and a micro switch is provided inside the housing. When the actuator rod is retracted into the housing, the abutment piece abuts against the micro switch. When the actuator rod extends out of the housing, the abutment piece moves away from the micro switch. Through the above improvements, the switch is turned on and off by the change in the position of the actuator rod, accurately determining whether the cover is in a locked (retracted) or released (extended) state, thereby converting mechanical displacement into an electrical signal, thereby improving the vehicle dashboard and linking other systems.

[0015] Preferably, a request switch for controlling the operation of the drive component is provided inside the housing, and the control part of the request switch is exposed on the base housing. Through the above improvements, the request switch is integrated into the housing, simplifying the installation process of the assembled parts and reducing the overall part cost.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects: By installing an emergency opening component on the housing, the emergency opening component includes a drive seat mounted on the housing and a traction member that drives the drive seat to rotate. The drive rod extends out of the housing and is connected to the drive seat for transmission. When an emergency opening of the cover is required, the traction member can be pulled to make the drive seat drive the drive rod to rotate, and force the actuator rod to extend out of the housing to open the cover. The emergency opening structure of the cover can be activated when the conventional device fails, ensuring basic use such as refueling and charging. It can be quickly opened in emergency rescue, improving vehicle safety and reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the shell of this utility model; Figure 3 This is a schematic diagram of the drive seat of this utility model; Figure 4 This is a schematic diagram of the structure of the housing and the drive seat of this utility model. Figure 5 A schematic diagram of the structure for mounting the elastic element of this utility model; Figure 6 This is a cross-sectional view of the housing and drive seat of this utility model. Figure 7 This is a schematic diagram of the structure of the drive seat and traction component of this utility model. In the diagram: 1. Housing; 2. Actuating rod; 3. Drive rod; 4. Drive assembly; 5. Emergency opening assembly; 1.1. Drive base; 1.2. Traction component; 1.3. Transmission gear; 1.4. Transmission cavity; 1.5. Transmission section; 1.6. Clearance section; 1.7. Clearance clearance; 2.1. Rotating guide column; 2.2. Elastic element; 2.3. First abutting protrusion; 2.4. Second abutting protrusion; 3.1. Snap-fit ​​protrusion; 3.2. Snap-fit ​​groove; 3.3. Winding groove; 4.1. Drive unit; 4.2. Transmission gear set; 4.3. Drive gear; 4.4. Guide block; 4.5. Guide protrusion; 4.6. Helical track groove; 5.1. Abutting piece; 5.2. Micro switch; 5.3. Request switch; 5.4. Sealing ring; Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0020] like Figure 1-7 As shown, an emergency opening structure for an electric car hatch includes a housing 1, an actuator 2 movably disposed on the housing 1, a drive rod 3 threadedly connected to the actuator 2 disposed inside the housing 1, and a drive assembly 4 that drives the drive rod 3 to rotate. The rotation of the drive rod 3 causes the actuator 2 to extend and retract along its axis.

[0021] Specifically, an emergency opening assembly 5 is connected to the housing 1. The emergency opening assembly 5 includes a drive seat 1.1 mounted on the housing 1 and a traction member 1.2 that drives the drive seat 1.1 to rotate. The drive rod 3 extends out of the housing 1 and is connected to the drive seat 1.1 in a transmission manner.

[0022] When an emergency opening of the hatch is required, the traction component 1.2 can be pulled, causing the drive seat 1.1 to rotate the drive rod 3 and force the actuator 2 to extend out of the housing 1 to open the hatch. The emergency hatch opening structure can be activated when the conventional device fails, ensuring basic use such as refueling and charging, and can be quickly opened in emergency rescue, improving vehicle safety and reliability.

[0023] In addition, the entire emergency opening assembly 5 is placed outside the housing 1, and the drive rod 3 extends out of the housing 1 and connects to the emergency opening assembly 5, thereby greatly saving the space inside the housing 1.

[0024] like Figures 2 to 6 As shown, as a further explanation of the cooperation between the drive rod 3 and the drive seat 1.1, the bottom of the drive rod 3 is provided with a transmission tooth 1.3, and the drive seat 1.1 is provided with a transmission cavity 1.4 for the drive rod 3 to be inserted. The cavity wall of the transmission cavity 1.4 is provided with a transmission section 1.5, and the transmission tooth 1.3 meshes with the transmission section 1.5.

[0025] When it is necessary to open the cover in an emergency, the traction component 1.2 can be used to pull the drive seat 1.1, so that the transmission section 1.5 on the drive seat 1.1 engages with the transmission gear 1.3. As the drive seat 1.1 rotates, the transmission section 1.5 will drive the transmission gear 1.3 to rotate, causing the drive rod 3 to rotate and causing the actuator rod 2 to extend out of the housing 1, thereby realizing the emergency opening of the cover.

[0026] Furthermore, the cavity wall of the transmission cavity 1.4 is also formed with a clearance section 1.6. The drive seat 1.1 has an initial position and an unlocked position. When the drive seat 1.1 is in the initial position, the transmission tooth 1.3 is in the clearance section 1.6, and a clearance gap 1.7 is formed between the transmission tooth 1.3 and the clearance section 1.6. When the drive seat 1.1 is in the unlocked position, the transmission tooth 1.3 is engaged with the transmission section 1.5.

[0027] Under normal conditions, the transmission gear 1.3 is in the avoidance section 1.6 to prevent the transmission gear 1.3 from contacting the drive seat 1.1 when it rotates. When emergency unlocking is required, the drive seat 1.1 rotates under the action of the traction member 1.2, so that the transmission gear 1.3 meshes with the transmission section 1.5, thereby driving the drive rod 3 to rotate.

[0028] Furthermore, the bottom of the housing 1 is provided with a rotating guide post 2.1, and the drive seat 1.1 is mounted on the rotating guide post 2.1. An elastic element 2.2 is sleeved on the rotating guide post 2.1. A first abutting protrusion 2.3 is formed at the bottom of the housing 1, and a second abutting protrusion 2.4 is formed on the drive seat 1.1. One end of the elastic element 2.2 abuts against the first abutting protrusion 2.3, and the other end abuts against the second abutting protrusion 2.4, so that the transmission section 1.5 always has a tendency to move away from the transmission tooth 1.3. By using the elastic element 2.2 to act on the drive seat 1.1, the drive seat 1.1 will automatically reset after unlocking, and the transmission section 1.5 will always have a tendency to move away from the transmission tooth 1.3, thereby ensuring that the transmission tooth 1.3 is in the avoidance section 1.6 under normal use, and preventing the drive rod 3 from interacting with the drive seat 1.1 under normal conditions.

[0029] like Figure 4 , Figure 7 As shown, as a further explanation of the connection between the traction member 1.2 and the drive seat 1.1, the traction member 1.2 has a snap-fit ​​protrusion 3.1, and the drive seat 1.1 has a snap-fit ​​groove 3.2 for the snap-fit ​​protrusion 3.1 to be inserted. By using the snap-fit ​​protrusion 3.1 and the snap-fit ​​groove 3.2 to cooperate, not only is the stability of the installation of the traction member 1.2 improved, but the convenience of the traction member 1.2 is also greatly improved.

[0030] Furthermore, the drive seat 1.1 has a winding groove 3.3 for inserting the traction member 1.2. During the pulling of the drive seat 1.1, the winding groove 3.3 can guide the traction member 1.2 to improve the stability of the drive seat 1.1 during rotation, and the traction member 1.2 can be wound on the winding groove 3.3 to improve the convenience of storage.

[0031] Preferably, the traction component 1.2 is a pull rope.

[0032] like Figure 1 , Figure 2 As shown, a further explanation of the implementation of the drive assembly 4 is provided. The drive assembly 4 includes a drive unit 4.1 and a gear set 1.3 that is connected to the output section of the drive unit 4.1. The drive rod 3 has drive teeth 4.3 that mesh with the output end of the gear set 1.3. The drive unit 4.1 drives the gear set 1.3 to rotate, thereby driving the drive rod 3 to rotate, so as to force the actuator 2 to rotate out of the housing 1. The actuator 2 has a large thrust when it extends to cope with severe weather conditions such as icing in the cap area.

[0033] Specifically, a guide block 4.4 is provided inside the housing 1, and a guide protrusion 4.5 is formed on the guide block 4.4. A spiral track groove 4.6 is formed on the outer periphery of the actuator 2 for the guide protrusion 4.5 to be inserted. When the guide protrusion 4.5 is inserted into the spiral track groove 4.6, the actuator 2 will extend and retract on the housing 1 as the drive rod 3 rotates, and the stability of the actuator 2 during the sliding process can be guaranteed.

[0034] Furthermore, an abutment piece 5.1 is formed on the outer periphery of the actuator 2, and a micro switch 5.2 is provided inside the housing 1. When the actuator 2 is retracted into the housing 1, the abutment piece 5.1 abuts against the micro switch 5.2. When the actuator 2 extends out of the housing 1, the abutment piece 5.1 moves away from the micro switch 5.2. The switch is turned on and off by the change in position of the actuator 2, accurately determining whether the cover is in a locked (retracted) or released (extended) state, thereby converting mechanical displacement into an electrical signal, thereby improving the vehicle's instrument panel and linking other systems.

[0035] like Figure 2 As shown, in some other embodiments, a request switch 5.3 for controlling the operation of the drive assembly 4 is provided inside the housing 1, and the control part of the request switch 5.3 is exposed on the base housing 1. Integrating the request switch 5.3 into the housing 1 simplifies the installation process of the assembled parts and reduces the overall part cost.

[0036] Preferably, a sealing ring 5.4 is provided on the housing 1. The sealing ring 5.4 includes a first sealing part and a second sealing part, as well as a connecting part for connecting the first sealing part and the second sealing part. The first sealing part, the second sealing part and the connecting part are all embedded in the housing 1. The first sealing part covers the control part of the request switch 5.3, and the second sealing part abuts against the outer periphery of the actuator 2 to ensure the sealing between the actuator 2 and the housing 1.

[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An emergency opening structure for an electric car hatch, characterized in that, Includes a housing (1), an actuator (2) is movably disposed on the housing (1), a drive rod (3) threadedly connected to the actuator (2) is disposed inside the housing (1), and a drive assembly (4) that drives the drive rod (3) to rotate. The drive rod (3) rotates so that the actuator (2) can extend and retract along its axis. An emergency opening assembly (5) is connected to the housing (1). The emergency opening assembly (5) includes a drive seat (1.1) mounted on the housing (1) and a traction member (1.2) that drives the drive seat (1.1) to rotate. The drive rod (3) extends out of the housing (1) and is connected to the drive seat (1.1) in a transmission manner.

2. The emergency opening structure for an electric car hatch according to claim 1, characterized in that: The bottom of the drive rod (3) is provided with a transmission tooth (1.3), and the drive seat (1.1) is provided with a transmission cavity (1.4) for the drive rod (3) to be inserted. The cavity wall of the transmission cavity (1.4) is provided with a transmission section (1.5), and the transmission tooth (1.3) meshes with the transmission section (1.5).

3. The emergency opening structure for an electric car hatch according to claim 2, characterized in that: The cavity wall of the transmission cavity (1.4) is also formed with a clearance section (1.6). The drive seat (1.1) has an initial position and an unlocked position. When the drive seat (1.1) is in the initial position, the transmission tooth (1.3) is in the clearance section (1.6). A clearance gap (1.7) is formed between the transmission tooth (1.3) and the clearance section (1.6). When the drive seat (1.1) is in the unlocked position, the transmission tooth (1.3) meshes with the transmission section (1.5).

4. The emergency opening structure for an electric car hatch according to claim 3, characterized in that: The bottom of the housing (1) is provided with a rotating guide post (2.1), the drive seat (1.1) is mounted on the rotating guide post (2.1), an elastic element (2.2) is sleeved on the rotating guide post (2.1), the bottom of the housing (1) is provided with a first abutting protrusion (2.3), the drive seat (1.1) is provided with a second abutting protrusion (2.4), one end of the elastic element (2.2) abuts against the first abutting protrusion (2.3), and the other end abuts against the second abutting protrusion (2.4), so that the transmission section (1.5) always has a tendency to move away from the transmission teeth (1.3).

5. The emergency opening structure for an electric car hatch according to claim 1, characterized in that: The traction member (1.2) has a snap-fit ​​protrusion (3.1), and the drive seat (1.1) has a snap-fit ​​groove (3.2) into which the snap-fit ​​protrusion (3.1) is inserted.

6. The emergency opening structure for an electric car hatch according to claim 1, characterized in that: The drive seat (1.1) is provided with a winding groove (3.3) into which the traction member (1.2) is inserted.

7. The emergency opening structure for an electric car hatch according to claim 1, characterized in that: The drive assembly (4) includes a drive unit (4.1) and a transmission gear (1.3) gear set that is connected to the output section of the drive unit (4.1). The drive rod (3) has drive teeth (4.3) that mesh with the output end of the transmission gear (1.3) gear set.

8. The emergency opening structure for an electric car hatch according to claim 7, characterized in that: The housing (1) is provided with a guide block (4.4), the guide block (4.4) has a guide protrusion (4.5), and the outer periphery of the actuator (2) is provided with a spiral trajectory groove (4.6) for the guide protrusion (4.5) to be inserted.

9. The emergency opening structure for an electric car hatch according to claim 1, characterized in that: The actuator (2) has an abutment piece (5.1) formed on its outer periphery. A micro switch (5.2) is provided inside the housing (1). When the actuator (2) is retracted into the housing (1), the abutment piece (5.1) abuts against the micro switch (5.2). When the actuator (2) extends out of the housing (1), the abutment piece (5.1) moves away from the micro switch (5.2).

10. The emergency opening structure for an electric car hatch according to claim 1, characterized in that: The housing (1) is provided with a request switch (5.3) for controlling the operation of the drive assembly (4), and the control part of the request switch (5.3) is exposed on the base housing (1).

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