Vehicle-mounted power adapter
By using up and down sliders and a top tightening block with a bevel structure in the vehicle power adapter, combined with the engagement of the threaded cylinder and threaded column, the problem of the charger falling off caused by vehicle bumps is solved, and good anti-falling effect and long-term stability.
Patent Information
- Application Number
- CN202420970292.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing car charger rebounds due to bumps during the vehicle driving, losing the anti-disassembly effect, and cannot effectively prevent the charger from falling out of the jack.
A vehicle-mounted power adapter is designed, using a cylindrical charger body that can move up and down slide and a top tight block with a bevel structure. Combined with the engagement of the threaded cylinder and the threaded column, the threaded cylinder and the slider are driven up and down by rotating the turntable. Friction forces are formed to prevent falling off and to prevent retraction of the pinch block by an irreversible structure.
It effectively prevents the charger from falling off the jack when the vehicle is bumpy, and improves the long-term stability and firmness of the anti-falling effect.
Smart Images
Figure CN222282420U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a vehicle-mounted charger, in particular to a vehicle-mounted power adapter. Background Art
[0002] The car charger is an accessory designed to facilitate car owners to charge digital products anytime and anywhere with the car charging power supply. Some high-end car chargers generally include 2 USB ports, which can charge two digital products at the same time. Such products generally have overload protection, short circuit protection, high voltage input protection, high temperature protection, and four safety protection functions to ensure safe use. The car charger can be used in the car as well as at home, realizing the three-in-one multifunctional use of car charging, direct charging, and USB charging.
[0003] For example, utility model patent CN210296756U discloses an anti-dropping vehicle charger, including a charger body and an AC change plug, wherein an outer sleeve extending into the interior of the AC change plug is movably provided at the center of the charger body, the bottom end of the outer sleeve is fixedly connected to the push sleeve by a thread, a push rod is movably inserted into the inner side wall of the outer sleeve and the push sleeve, a mounting groove is provided on the inner side wall of the AC change plug, an anti-dropping top block is installed in the mounting groove, and a spring piece is welded and fixed on the side wall of the push sleeve. The utility model pushes the push sleeve downward by pressing the outer sleeve, and while the push sleeve moves downward, the spring piece can push the anti-dropping top block outward through the missing groove, and at the same time, the steel ball slides down along the surface of the push rod until the steel ball moves into the positioning groove, and the third spring pushes the steel ball to get stuck in the positioning groove to prevent the push sleeve from resetting, thereby keeping the spring piece pushing the anti-dropping top block to fix the AC change plug. However, due to bumps and other reasons during driving, the push sleeve is easily rebounded, causing the on-board charger to lose its anti-slip effect. Utility Model Content
[0004] In order to solve the above problems, the purpose of the utility model is to provide a vehicle-mounted power adapter.
[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is: a vehicle-mounted power adapter, comprising a cylindrical vehicle-mounted charger body and a slider which can move up and down in the vehicle-mounted charger body, the front and rear sides of the bottom of the slider are provided with inclined slide grooves, the front and rear side walls of the bottom of the vehicle-mounted charger body are respectively penetrated by horizontally movable tightening blocks, the inner end of the tightening block is provided with an inclined surface structure which matches the slide groove, a freely rotatable threaded barrel structure is provided in the vehicle-mounted charger body, the threaded column at the upper end of the slider is located in the threaded barrel structure and meshes with the internal thread of the threaded barrel structure.
[0006] Furthermore, adjustment openings are provided on both sides of the top of the vehicle charger body, and a freely rotatable turntable is provided inside the vehicle charger body. Both sides of the turntable are located in the adjustment openings so that both sides of the turntable are exposed outside the vehicle charger body, and the threaded barrel structure is provided at the center of the turntable.
[0007] Furthermore, the horizontal cross-sections of the slide groove and the tightening block are T-shaped, and the two side edges of the T-shape of the tightening block are respectively located in the long strip slideways on each side of the slide groove.
[0008] Furthermore, inwardly concave and vertical guide grooves are provided on the left and right sides of the bottom of the slider, and a limit plate located in the guide grooves on each side is provided inside the vehicle charger body, and the upper and lower widths of the limit plates are smaller than the upper and lower widths of the guide grooves.
[0009] Furthermore, a vertical wire through-hole is passed through the center of the slider.
[0010] Furthermore, the outer periphery of the turntable is provided with evenly arranged anti-skid groove structures.
[0011] Furthermore, the outer side surface of each tightening block is a plane, and in the initial state, the outer side surface of the tightening block on each side is located inside the outer side surface of the vehicle charger body.
[0012] Furthermore, a U-shaped metal conductive spring is arranged at the bottom of the vehicle charger body, and the metal protrusions arranged on the outer sides of the two ends of the metal conductive spring penetrate the outer shell of the vehicle charger body and extend to the outside of the outer shell of the vehicle charger body. A metal conductive spring is arranged at the lower end of the vehicle charger body.
[0013] Furthermore, the circuit board is arranged in a circuit installation cavity on the top of the vehicle charger body, and the top opening of the circuit installation cavity is covered with a cover plate with a jack.
[0014] The utility model is not only easy to operate to lock and prevent falling off, that is, by rotating the turntable and the threaded barrel structure, the threaded column and the sliding block are relatively driven to move upward, and the inclined surface of the slide groove pushes the inclined surface structures on each side to make the tightening blocks move outward at the same time, so that the tightening blocks on each side are tightly attached to the inner wall of the vehicle power socket, forming a large friction force, thereby effectively preventing the vehicle power adapter from falling off from the power socket, and achieving a good anti-falling effect. In addition, since the threaded barrel structure and the threaded column are engaged with the threaded structure, it is difficult to force the threaded barrel structure to rotate even if an upward or downward force is applied to the threaded column. Therefore, the threaded column can be driven to move up and down by rotating the turntable and the threaded barrel structure, but the threaded barrel structure cannot be driven to rotate by moving the threaded column up and down. This structure is an irreversible operation structure, which prevents the tightening block from shrinking after being expanded without operation, further improves the firmness of the tightening block after being expanded, and makes the anti-falling effect effective for a long time. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a main structural schematic diagram of the utility model;
[0016] Figure 2 It is a top view of the three-dimensional structure of the utility model;
[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;
[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model when one side of the shell is removed;
[0019] Figure 5 It is a bottom-up stereoscopic structural schematic diagram of the slider structural part of the utility model. DETAILED DESCRIPTION
[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] The present embodiment is described in detail below with reference to the accompanying drawings:
[0023] This embodiment provides a vehicle power adapter. Please refer to the accompanying drawings in the specification. Figure 1-5 .
[0024] like Figure 1-5As shown, a vehicle power adapter comprises a cylindrical vehicle charger body 1 and a slider 2 which is arranged in the vehicle charger body 1 and can move up and down, and an inclined slide groove 3 is arranged on the front and rear sides of the bottom of the slider 2, and a horizontally movable top tightening block 4 is respectively penetrated by the front and rear side walls of the bottom of the vehicle charger body 1, and an inclined surface structure which is matched with the slide groove 3 is arranged at the inner end of the top tightening block 4, and the horizontal cross-section of the slide groove 3 and the top tightening block 4 is T-shaped, and the edges 10 on both sides of the T-shape of the top tightening block 4 are respectively located in the long strip slideways on each side of the slide groove 3, which can ensure that the top tightening block 4 slides better along the slide groove 3 and prevent the inclined surface structure from being completely separated from the slide groove 3, and a freely rotatable threaded barrel structure 6 is arranged in the vehicle charger body 1, and a threaded column 7 at the upper end of the slider 2 is located in the threaded barrel structure 6 and meshes with the internal thread of the threaded barrel structure 6.
[0025] For the convenience of adjustment, adjustment openings 8 are provided on both sides of the top of the vehicle charger body 1, and a freely rotatable turntable 9 is provided inside the vehicle charger body 1. Both sides of the turntable 9 are located in the adjustment opening 8, so that both sides of the turntable 9 are exposed to the outside of the vehicle charger body 1, and the threaded barrel structure 6 is provided at the center of the turntable 9.
[0026] In order to play a limiting role and ensure that the slider 2 can only move up and down when the threaded barrel structure 6 is screwed, inwardly concave and vertical guide grooves 11 are provided on the left and right sides of the bottom of the slider 2, and the vehicle charger body 1 is provided with limiting plates 12 located in the guide grooves 11 on each side, and the upper and lower widths of the limiting plates 12 are smaller than the upper and lower widths of the guide grooves 11, so that the entire slider 2 is equivalent to being clamped and fixed between the limiting plates 12 on both sides, so that the slider 2 can only move up and down in the vertical direction.
[0027] As in the current on-board charger structure, a U-shaped metal conductive spring 15 is arranged at the bottom of the on-board charger body 1, and metal protrusions 16 arranged on the outer sides of both ends of the metal conductive spring 15 penetrate the shell of the on-board charger body 1 and extend to the outside of the shell of the on-board charger body 1. A metal conductive spring 17 is arranged at the lower end of the on-board charger body 1. The metal conductive spring 17 can better contact with the bottom metal sheet of the on-board power socket. The metal conductive spring 17 and the metal conductive spring 15 are respectively in contact with the positive and negative poles of the on-board power socket. The circuit board 18 is arranged at the on-board charger. The circuit installation cavity is located at the top of the device body 1, and the top opening of the circuit installation cavity is covered with a cover plate 5 with a jack. A vertical wire through-hole 13 is passed through the center of the slider 2. The wire electrically connected to the metal conductive spring 17 and the metal conductive spring 15 can pass through the wire through-hole 13. The wire through-hole 13 also extends to the threaded column 7, so that the wire passing through the wire through-hole 13 can extend to the circuit installation cavity at the top, and the passing through does not affect the rotation of the threaded barrel structure 6 and the turntable 9. The outer periphery of the turntable 9 is provided with an evenly arranged anti-slip groove structure 14, which is convenient for increasing the friction of the rotating turntable 9.
[0028] The outer side surface of each tightening block 4 is a plane, and in the initial state, the outer side surface of the tightening blocks 4 on each side is located inside the outer side surface of the vehicle charger body 1, so that when inserted into the vehicle power socket, the turntable 9 threaded cylinder structure 6 is rotated. Since the slider 2 can only move up and down, such as being limited by the limit plate 12, it can only move up and down, thereby relatively driving the threaded column 7 and the slider 2 to move up or down. As in this embodiment, the front and rear slide grooves 3 are inclined in an eight-shaped arrangement, that is, the inclined surfaces of the slide grooves 3 on each side are inclined upward, which drives the slider 2 to move upward, and the inclined surfaces of the slide grooves 3 push the inclined surface structures on each side to make the tightening blocks 4 move outward at the same time, so that the tightening blocks 4 on each side are tightly attached to the inner wall of the vehicle power socket, forming a large friction force, thereby The vehicle power adapter is effectively prevented from falling off from the power socket, and has a good anti-falling effect. In addition, after the slider 2 stretches the tightening blocks 4 on each side, since the threaded barrel structure 6 and the threaded column 7 are engaged with each other by a threaded structure, it is difficult to force the threaded barrel structure 6 to rotate even if an upward or downward force is applied to the threaded column 7. Therefore, the threaded column 7 can be driven to move up and down by rotating the turntable 9 and the threaded barrel structure 6, but the threaded barrel structure 6 cannot be driven to rotate by moving the threaded column 7 up and down. This structure is an irreversible operation structure, which prevents the tightening block 4 from retracting without operation after being stretched, further improves the firmness of the tightening block 4 after being stretched, and makes the anti-falling effect effective for a long time.
[0029] Of course, the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A vehicle power adapter, comprising a cylindrical vehicle charger body (1) and a slider (2) disposed in the vehicle charger body (1) and movable up and down, characterized in that: Inclined slide grooves (3) are provided at the front and rear sides of the bottom of the slider (2); horizontally movable tightening blocks (4) are respectively penetrated through the front and rear side walls of the bottom of the vehicle charger body (1); an inclined surface structure that matches the slide groove (3) is provided at the inner end of the tightening block (4); a freely rotatable threaded barrel structure (6) is provided in the vehicle charger body (1); a threaded column (7) at the upper end of the slider (2) is located in the threaded barrel structure (6) and meshes with the internal thread of the threaded barrel structure (6).
2. The vehicle-mounted power adapter according to claim 1, characterized in that: Adjustment openings (8) are provided on both sides of the top of the on-board charger body (1), a freely rotatable turntable (9) is provided inside the on-board charger body (1), both sides of the turntable (9) are located inside the adjustment openings (8), so that both sides of the turntable (9) are exposed outside the on-board charger body (1), and the threaded barrel structure (6) is provided at the center of the turntable (9).
3. The vehicle-mounted power adapter according to claim 1, characterized in that: The horizontal cross-sections of the slide groove (3) and the tightening block (4) are T-shaped, and the two side edges (10) of the T-shaped tightening block (4) are respectively located in the long strip slideways on each side of the slide groove (3).
4. The vehicle-mounted power adapter according to claim 1, characterized in that: Inwardly recessed and vertical guide slots (11) are provided on the left and right sides of the bottom of the slider (2), and the on-board charger body (1) is provided with limit plates (12) located in the guide slots (11) on each side, and the upper and lower widths of the limit plates (12) are smaller than the upper and lower widths of the guide slots (11).
5. The vehicle-mounted power adapter according to claim 1, characterized in that: A vertical wire through hole (13) runs through the center of the slider (2).
6. The vehicle-mounted power adapter according to claim 2, characterized in that: The outer periphery of the rotating disk (9) is provided with evenly arranged anti-slip groove structures (14).
7. The vehicle-mounted power adapter according to claim 1, characterized in that: The outer side surface of each tightening block (4) is a plane, and in an initial state, the outer side surface of the tightening block (4) on each side is located inside the outer side surface of the on-board charger body (1).
8. The vehicle-mounted power adapter according to claim 1, characterized in that: A U-shaped metal conductive spring (15) is arranged at the bottom of the on-board charger body (1); metal protrusions (16) arranged at the outer sides of both ends of the metal conductive spring (15) penetrate the outer shell of the on-board charger body (1) and extend to the outside of the outer shell of the on-board charger body (1); and a metal conductive spring (17) is arranged at the lower end of the on-board charger body (1).
9. The vehicle-mounted power adapter according to claim 1, characterized in that: The circuit board (18) is arranged in a circuit installation cavity at the top of the vehicle charger body (1), and the top opening of the circuit installation cavity is covered with a cover plate (5) with a socket.