Actuator for charging port or oil filling port

Abstract

The utility model relates to an actuator for a charging port or an oil filling port, which comprises a casing provided with a movable cavity and an assembly cavity, an elastic push rod is arranged on the movable cavity, an electromagnetic valve is arranged on the assembly cavity, and a lock rod with a locking position and an unlocking position is arranged on the electromagnetic valve; the electromagnetic valve drives the lock rod to move to the locking position and the unlocking position through power-on and power-off. When the elastic push rod is in an initial undetermined state, the lock rod moves to a locking position and locks the elastic push rod; when the lock rod moves to the unlocking position, the lock rod unlocks the elastic push rod, and the elastic push rod is in an extending state. The lock rod is driven to move to the locking position and the unlocking position through power-on and power-off of the electromagnetic valve, the mode that the lock rod is driven to move to the locking position and the unlocking position through forward rotation and reverse rotation of a motor shaft is effectively replaced, operation is easier and more convenient after the electromagnetic valve is used, the size of the electromagnetic valve is small, and compared with the prior art, the size of a machine shell of the actuator is further reduced. The product structure is compact, product materials are saved, and enterprise revenue is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive technology, specifically an actuator for a charging port or a refueling port. Background Technology

[0002] Currently, actuators used for charging ports or refueling ports typically employ a drive motor to drive the locking assembly. For example, Chinese Patent No. ZL202311077159.9 discloses an actuator for an automotive charging or refueling cap, comprising a housing, a locking assembly, and a rod extension assembly. The rod extension assembly includes a movable cavity on the housing, an elastic push rod in the movable cavity, and a guide rail assembly on the housing for guiding the elastic push rod in circumferential and axial movement. The locking assembly includes an assembly cavity on the housing, a locking element that cooperates with the elastic push rod, and a driver in the assembly cavity for driving the locking element. The use of a drive motor for the driver results in a large transmission structure, leading to a large overall size of the actuator housing. Utility Model Content

[0003] The purpose of this invention is to provide an actuator for a charging port or a filling port. The driver that drives the locking assembly is a solenoid valve. By energizing and de-energizing the solenoid valve, the locking rod is driven to the locked and unlocked positions, effectively replacing the motor drive. The motor needs to drive the locking rod to the locked and unlocked positions by rotating the motor shaft in both directions. However, the operation is simpler after using a solenoid valve. Moreover, the solenoid valve is small in size, and the size of the actuator housing is further reduced compared to the existing technology. The product structure is compact, saves product materials, and effectively improves enterprise efficiency.

[0004] The purpose of this utility model is achieved as follows:

[0005] An actuator for a charging port or a filling port includes a housing having a movable cavity and an assembly cavity. The movable cavity is provided with an elastic push rod having circumferential and axial motion, and the elastic push rod has an initial waiting state and an extended state. The assembly cavity is provided with a solenoid valve, and the solenoid valve is provided with a locking rod having a locked position and an unlocked position.

[0006] The solenoid valve drives the locking lever to move to the locked and unlocked positions;

[0007] The elastic push rod is in the initial pending state, and the locking rod moves to the locking position and locks the elastic push rod.

[0008] When the locking lever moves to the unlocked position, it releases the locking lever from the elastic push rod, which then extends.

[0009] The solenoid valve is provided with a first elastic element, one end of which abuts against the locking rod, and the other end of which abuts against the valve body of the solenoid valve.

[0010] When the elastic push rod is in the initial pending state, the solenoid valve is de-energized, the first elastic element releases its elastic force and drives the locking rod to move to the locking position where the elastic push rod is locked.

[0011] When the solenoid valve is energized, the locking lever moves from the locked position to the unlocked position and compresses the first elastic element, causing the elastic push rod to extend out of the housing.

[0012] The elastic push rod has a locking position. When the elastic push rod is in the initial waiting state, the locking rod moves to the locking position and inserts into the locking position; when the locking rod moves from the locking position to the unlocking position, the locking rod disengages from the locking position.

[0013] A first elastic element is provided between the solenoid valve and the locking rod. A limiting pad is provided on the locking rod, and a limiting block is provided on the valve body of the solenoid valve. The first elastic element is sleeved on the outside of the locking rod, and one end of the first elastic element is limited on the limiting pad, and the other end of the first elastic element is limited on the limiting block.

[0014] The solenoid valve body is equipped with an electromagnetic induction element. When the solenoid valve is energized, the electromagnetic induction element has magnetism and drives the locking rod to move to the unlock position, and the first elastic element is in a compressed state.

[0015] When the solenoid valve is energized, the magnetic attraction of the electromagnetic induction element is greater than the elastic force of the first elastic element.

[0016] When the solenoid valve is de-energized, the electromagnetic induction element loses its magnetism, the first elastic element releases its elastic force and drives the locking lever to move to the locked position.

[0017] The movable cavity is equipped with a guide member, and a guide groove is provided between the guide member and the movable cavity to guide the elastic push rod to rotate axially; the elastic push rod is equipped with a guide block that cooperates with the guide groove.

[0018] The bottom wall of the movable cavity is provided with a number of first guide teeth arranged in a circumferential manner, and the cavity of the guide is provided with a number of second guide teeth arranged in a circumferential manner, and a guide groove is formed between the first guide teeth and the second guide teeth;

[0019] The cavity of the guide member is provided with an axial groove that connects to the guide groove. The elastic push rod is in the extended state, and the guide block of the elastic push rod moves along the guide groove to the axial groove.

[0020] The elastic push rod switches from the extended state to the initial pending state, and the guide block of the elastic push rod moves along the axial groove to the guide groove.

[0021] The bottom of the guide block of the elastic push rod is provided with a first arc surface that mates with the first guide tooth, and the top of the guide block of the elastic push rod is provided with a second arc surface that mates with the second guide tooth.

[0022] An anti-rotation positioning part is provided between the movable cavity and the guide member. The guide member is positioned on the movable cavity by the anti-rotation positioning part. The anti-rotation positioning part can prevent the guide member from rotating circumferentially with the elastic push rod when the elastic push rod moves.

[0023] The anti-rotation positioning part includes a positioning rib provided on the movable cavity and a positioning groove provided on the guide. The positioning rib is inserted into the positioning groove so that the guide is positioned and installed on the movable cavity. The anti-rotation positioning part plays a role in positioning and guiding the installation of the guide during installation.

[0024] The movable cavity is provided with a guide post for limiting the installation of the second elastic element, and the elastic push rod is provided with a limiting cavity. One end of the second elastic element is limited on the bottom wall of the movable cavity, and the other end of the second elastic element is limited on the limiting cavity of the elastic push rod, so that the elastic push rod is elastically and movably mounted on the housing.

[0025] The housing includes a lower cover and an upper cover that fits onto the lower cover. The upper cover and the lower cover form a movable cavity and an assembly cavity that are spaced apart. A notch is provided on one side of the movable cavity to connect to the assembly cavity, so that the locking rod can move from the assembly cavity to the movable rod.

[0026] A limiting engagement part is provided between the top cover and the elastic push rod. When the elastic push rod is in the extended state, it is limited to the housing by the limiting engagement part.

[0027] The limiting and limiting mating part includes a limiting ring groove surface provided in the upper cover and a limiting boss provided on the elastic push rod. When the elastic push rod is in the extended state, the limiting boss abuts against the limiting ring groove surface to prevent the elastic push rod from detaching from the machine housing when it is extended.

[0028] The beneficial effects of this utility model are as follows:

[0029] The actuator that drives the locking assembly is a solenoid valve. By energizing and de-energizing the solenoid valve, the locking rod is driven to the locked and unlocked positions, effectively replacing the motor drive. The motor needs to drive the locking rod to the locked and unlocked positions by rotating the motor shaft in both directions. With the solenoid valve, the operation is simpler. Moreover, the solenoid valve is small in size, and the actuator housing is further reduced in size compared to existing technologies. The product structure is compact, saves product materials, and effectively improves enterprise efficiency. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of an actuator according to an embodiment of the present invention.

[0031] Figure 2 This is a three-dimensional cross-sectional exploded view of the actuator assembly according to an embodiment of the present invention.

[0032] Figure 3 This is an exploded view of the actuator assembly structure according to an embodiment of the present invention.

[0033] Figure 4 This is a schematic diagram of the elastic push rod of the actuator in an initial undetermined state according to an embodiment of the present invention.

[0034] Figure 5 This is a schematic diagram of the structure of the actuator in the extended state according to an embodiment of the present invention.

[0035] Figure 6 This is an exploded view of the guide member and lower cover assembly according to an embodiment of the present invention. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0037] See Figures 1-6 An actuator for a charging port or a filling port includes a housing 1 having a movable cavity 2 and an assembly cavity 3. The movable cavity 2 is provided with an elastic push rod 4 having circumferential and axial motion, and the elastic push rod 4 has an initial waiting state and an extended state. The assembly cavity 3 is provided with a solenoid valve 5, and the solenoid valve 5 is provided with a locking rod 6 having a locked position and an unlocked position.

[0038] Solenoid valve 5 drives locking lever 6 to move to the locked position and the unlocked position;

[0039] The elastic push rod 4 is in the initial pending state, and the locking rod 6 moves to the locking position and locks the elastic push rod 4.

[0040] When the locking lever 6 moves to the unlocked position, the locking lever 6 releases the locking of the elastic push rod 4, and the elastic push rod 4 is in the extended state.

[0041] The solenoid valve 5 is provided with a first elastic element 7. One end of the first elastic element 7 abuts against the locking rod 6, and the other end of the first elastic element 7 abuts against the valve body of the solenoid valve 5.

[0042] The elastic push rod 4 is in the initial pending state, the solenoid valve 5 is de-energized, the first elastic element 7 releases its elastic force and drives the locking rod 6 to move to the locking position of locking the elastic push rod 4;

[0043] When the solenoid valve 5 is energized, the locking rod 6 moves from the locked position to the unlocked position and compresses the first elastic element 7, and the elastic push rod 4 extends out of the housing 1.

[0044] The elastic push rod 4 is provided with a locking position 8. When the elastic push rod 4 is in the initial waiting state, the locking rod 6 moves to the locking position and inserts into the locking position 8; the locking rod 6 moves from the locking position to the unlocking position and disengages from the locking position 8.

[0045] A first elastic element 7 is provided between the solenoid valve 5 and the locking rod 6. A limiting pad 9 is provided on the locking rod 6. A limiting block 10 is provided on the valve body of the solenoid valve 5. The first elastic element 7 is sleeved on the outside of the locking rod 6, and one end of the first elastic element 7 is limited on the limiting pad 9, and the other end of the first elastic element 7 is limited on the limiting block 10.

[0046] The solenoid valve 5 has an electromagnetic induction element inside its valve body. When the solenoid valve 5 is energized, the electromagnetic induction element is magnetic and drives the locking rod 6 to move to the unlocked position, and the first elastic element 7 is in a compressed state.

[0047] When the solenoid valve 5 is de-energized, the electromagnetic induction element loses its magnetism, the first elastic element 7 releases its elastic force and drives the locking rod 6 to move to the locked position.

[0048] The movable cavity 2 is provided with a guide member 11, and a guide groove 12 is provided between the guide member 11 and the movable cavity 2 to guide the elastic push rod 4 to rotate axially; the elastic push rod 2 is provided with a guide block 13 that cooperates with the guide groove 12.

[0049] The bottom wall of the active cavity 2 is provided with a number of first guide teeth 14 arranged in a circumferential manner, and the cavity of the guide member 11 is provided with a number of second guide teeth 15 arranged in a circumferential manner. A guide groove 12 is formed between the first guide teeth 14 and the second guide teeth 15.

[0050] The cavity of the guide member 11 is provided with an axial groove 16 that connects to the guide groove 12. The elastic push rod 4 is in the extended state, and the guide block 13 of the elastic push rod 4 moves along the guide groove 12 to the axial groove 16.

[0051] The elastic push rod 4 switches from the extended state to the initial pending state, and the guide block 13 of the elastic push rod 4 moves along the axial groove 16 to the guide groove 12.

[0052] The bottom of the guide block 13 of the elastic push rod 4 is provided with a first arc surface 17 that mates with the first guide tooth 14, and the top of the guide block 13 of the elastic push rod 4 is provided with a second arc surface 18 that mates with the second guide tooth 15.

[0053] An anti-rotation positioning part 19 is provided between the movable cavity 2 and the guide member 11, and the guide member 11 is positioned on the movable cavity 2 by the anti-rotation positioning part 19;

[0054] The anti-rotation positioning part 19 includes a positioning rib 20 provided on the movable cavity 2 and a positioning groove 21 provided on the guide member 11. The positioning rib 20 is inserted into the positioning groove 21 so that the guide member 11 is positioned and installed on the movable cavity 2.

[0055] The movable cavity 2 is provided with a guide post 23 for limiting the installation of the second elastic element 22, and the elastic push rod 4 is provided with a limiting cavity 24. One end of the second elastic element 22 is limited on the bottom wall of the movable cavity 2, and the other end of the second elastic element 22 is limited on the limiting cavity 24 of the elastic push rod 4, so that the elastic push rod 4 is elastically and movably mounted on the housing 1.

[0056] The housing 1 includes a lower cover 25 and an upper cover 26 that covers the lower cover 25. An active cavity 2 and an assembly cavity 3 are formed between the upper cover 26 and the lower cover 25. A notch 27 communicating with the assembly cavity 3 is provided on one side of the active cavity 2.

[0057] In this embodiment, the guide member 11 is provided with a clearance position 31 corresponding to the notch 27, and the clearance position 31 is connected to the notch 27.

[0058] A limiting engagement part 28 is provided between the upper cover 26 and the elastic push rod 4. The elastic push rod 4 is in the extended state and is limited on the housing 1 by the limiting engagement part 28.

[0059] The limiting and limiting mating part 28 includes a limiting ring groove surface 29 disposed in the upper cover 26 and a limiting boss 30 disposed on the elastic push rod 4. When the elastic push rod 4 is in the extended state, the limiting boss 30 abuts against the limiting ring groove surface 29.

[0060] In this embodiment, the assembly cavity 3 may be provided with a positioning stud, the valve body of the solenoid valve 5 is provided with a positioning ear, the positioning ear is provided with a positioning hole, the positioning hole of the solenoid valve 5 is inserted into the positioning stud, and the screw is inserted into the positioning stud and the positioning hole to fix the solenoid valve 5 on the assembly cavity 3.

[0061] In this embodiment, the assembly cavity 3 is provided with a support rib 32 for supporting the solenoid valve 5.

[0062] In this embodiment, the upper cover 26 is provided with a fastening hole 33, and the lower cover 25 is provided with a protruding buckle 34. The fastening hole 33 and the protruding buckle 34 are fastened together, and the upper cover 26 and the lower cover 25 are securely connected.

[0063] In this embodiment, the upper cover 26 is provided with a first fastening hole 35, and the lower cover 25 is provided with a second fastening hole 36. The first fastening hole 35 and the second fastening hole 36 are aligned and screws are inserted to fasten the upper cover 26 and the lower cover 25.

[0064] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An actuator for a charging port or a filling port, comprising a housing (1) having a movable cavity (2) and an assembly cavity (3), characterized in that: The active cavity (2) is provided with an elastic push rod (4) having circumferential and axial motion. The elastic push rod (4) has an initial pending state and an extended state. The assembly cavity (3) is provided with a solenoid valve (5). The solenoid valve (5) is provided with a locking rod (6) having a locking position and an unlocking position. The solenoid valve (5) drives the locking lever (6) to move to the locked position and the unlocked position; The elastic push rod (4) is in the initial pending state, and the locking rod (6) moves to the locking position and locks the elastic push rod (4). When the locking lever (6) moves to the unlocked position, the locking lever (6) releases the locking of the elastic push rod (4), and the elastic push rod (4) is in the extended state.

2. The actuator for a charging port or a filling port according to claim 1, characterized in that: The solenoid valve (5) is provided with a first elastic element (7), one end of the first elastic element (7) abuts against the locking rod (6), and the other end of the first elastic element (7) abuts against the valve body of the solenoid valve (5); The elastic push rod (4) is in the initial pending state, the solenoid valve (5) is de-energized, the first elastic element (7) releases its elastic force and drives the locking rod (6) to move to the locking position of locking the elastic push rod (4); When the solenoid valve (5) is energized, the locking rod (6) moves from the locked position to the unlocked position and compresses the first elastic element (7), and the elastic push rod (4) extends out of the housing (1).

3. The actuator for a charging port or a filling port according to claim 1, characterized in that: The elastic push rod (4) is provided with a locking position (8). When the elastic push rod (4) is in the initial waiting state, the locking rod (6) moves to the locking position and inserts into the locking position (8); the locking rod (6) moves from the locking position to the unlocking position and disengages from the locking position (8).

4. The actuator for a charging port or a filling port according to claim 1, characterized in that: A first elastic element (7) is provided between the solenoid valve (5) and the locking rod (6). A limiting pad (9) is provided on the locking rod (6). A limiting block (10) is provided on the valve body of the solenoid valve (5). The first elastic element (7) is sleeved on the outside of the locking rod (6), and one end of the first elastic element (7) is limited on the limiting pad (9), and the other end of the first elastic element (7) is limited on the limiting block (10). The solenoid valve (5) has an electromagnetic induction element in its body. When the solenoid valve (5) is energized, the electromagnetic induction element is magnetic and drives the locking rod (6) to move to the unlock position. The first elastic element (7) is in a compressed state. When the solenoid valve (5) is de-energized, the electromagnetic induction element loses its magnetism, the first elastic element (7) releases its elastic force and drives the locking rod (6) to move to the locked position.

5. The actuator for a charging port or a filling port according to claim 1, characterized in that: The movable cavity (2) is provided with a guide (11), and a guide groove (12) is provided between the guide (11) and the movable cavity (2) for guiding the elastic push rod (4) to rotate axially; the elastic push rod (2) is provided with a guide block (13) that cooperates with the guide groove (12).

6. The actuator for a charging port or a filling port according to claim 5, characterized in that: The bottom wall of the active cavity (2) is provided with a number of first guide teeth (14) arranged in a circumferential direction, and the cavity of the guide (11) is provided with a number of second guide teeth (15) arranged in a circumferential direction. A guide groove (12) is formed between the first guide teeth (14) and the second guide teeth (15). The cavity of the guide member (11) is provided with an axial groove (16) that connects to the guide groove (12). The elastic push rod (4) is in the extended state, and the guide block (13) of the elastic push rod (4) moves along the guide groove (12) to the axial groove (16). The elastic push rod (4) switches from the extended state to the initial pending state, and the guide block (13) of the elastic push rod (4) moves along the axial groove (16) to the guide groove (12).

7. The actuator for a charging port or a filling port according to claim 6, characterized in that: The bottom of the guide block (13) of the elastic push rod (4) is provided with a first arc surface (17) that mates with the first guide tooth (14), and the top of the guide block (13) of the elastic push rod (4) is provided with a second arc surface (18) that mates with the second guide tooth (15).

8. The actuator for a charging port or a filling port according to claim 5, characterized in that: An anti-rotation positioning part (19) is provided between the movable cavity (2) and the guide (11), and the guide (11) is positioned on the movable cavity (2) through the anti-rotation positioning part (19); The anti-rotation positioning part (19) includes a positioning rib (20) provided on the movable cavity (2) and a positioning groove (21) provided on the guide (11). The positioning rib (20) is inserted into the positioning groove (21) so that the guide (11) is positioned and installed on the movable cavity (2).

9. The actuator for a charging port or a filling port according to claim 1, characterized in that: The movable cavity (2) is provided with a guide post (23) for limiting the installation of the second elastic element (22), and the elastic push rod (4) is provided with a limiting cavity (24). One end of the second elastic element (22) is limited on the bottom wall of the movable cavity (2), and the other end of the second elastic element (22) is limited on the limiting cavity (24) of the elastic push rod (4), so that the elastic push rod (4) is elastically and movably set on the housing (1).

10. The actuator for a charging port or a filling port according to claim 1, characterized in that: The housing (1) includes a lower cover (25) and an upper cover (26) that is fitted onto the lower cover (25). An active cavity (2) and an assembly cavity (3) are formed between the upper cover (26) and the lower cover (25) and are spaced apart. A notch (27) communicating with the assembly cavity (3) is provided on one side of the active cavity (2). A limiting engagement part (28) is provided between the top cover (26) and the elastic push rod (4). The elastic push rod (4) is in the extended state and is limited on the housing (1) by the limiting engagement part (28). The limiting and limiting mating part (28) includes a limiting ring groove surface (29) provided in the upper cover (26) and a limiting boss (30) provided on the elastic push rod (4). When the elastic push rod (4) is in the extended state, the limiting boss (30) abuts against the limiting ring groove surface (29).

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