WO2008011823A1

WO2008011823A1 - An onboard charging device

Info

Publication number: WO2008011823A1
Application number: PCT/CN2007/070280
Authority: WO
Inventors: Yuanhong Jin
Original assignee: Yuanhong Jin
Priority date: 2006-07-17
Filing date: 2007-07-12
Publication date: 2008-01-31
Also published as: CN200953368Y

Abstract

An onboard charging device (100) includes a positive electrode electrically connected with the positive pole of the cigarette lighter (200) in vehicle and a negative electrode electrically connected with the negative pole of the cigarette lighter (200) in vehicle. The device additionally comprises a bar housing (1), a flexible slide piece (10) flexibly contacted with the housing (1) and mounted on the housing (1) in manner of sliding along the longitudinal direction of the housing, and a swing piece (5) mounted on the housing in rotary manner. The flexible slide piece (10) is electrically connected with the positive electrode. The swing piece (5) is electrically connected with the negative electrode. The swing piece (5) is in bar shape, the longitudinal direction is coincide with the longitudinal direction of the housing when it is folded rotationally, and the terminal in longitudinal direction when rotating to stretch is contacted with the inside wall of the cigarette lighter (200) in vehicle. The terminal away from the housing (1) is contacted with the central contact of the cigarette lighter (200) in vehicle when the flexible slide piece slides away from the housing (1).

Description

Vehicle charging device

The present invention relates to a charging device, and more particularly to a plug-in power supply device for a portable charger that uses an on-board cigarette lighter to charge an electronic product. Background technique

At present, the plug for the DC power supply of the automobile is usually made according to the inner diameter of the cigarette lighter jack of the automobile, and is contacted and fixed by the power ferrule and the contact of the vehicle power center, and is generally made into a cylindrical body. This type of car charging source plug has a relatively large volume and generally can only serve as a peripheral accessory for electrical products, which is not conducive to miniaturization and portability of the car charger product. Summary of the invention

The technical problem to be solved by the present invention is to provide an in-vehicle charging device which can be used as a charging connection device for a portable charger, and which is easy to be folded, has a small volume after folding, and is easy to operate.

In order to solve the above technical problem, the in-vehicle charging device of the present invention comprises a positive electrode electrically connectable to a central contact of a car cigarette lighter and a negative electrode electrically connectable to an inner wall of the car cigarette lighter, and a strip-shaped housing. a telescopic slider mounted on the housing in elastic contact with the housing and slidable along the length of the housing, a swinging block rotatably mounted on the housing; the telescopic slider and the positive electrode Connecting, the pendulum block is electrically connected to the negative electrode; the pendulum block is in the shape of a strip, and when the rotation is folded, the length direction is consistent with the length direction of the casing, and the length thereof is such that the length end of the casing can be touched when the rotation is opened. The inner wall of the car cigarette lighter; the housing and the telescopic slider are sized such that the end of the telescopic slider away from the housing can touch the center contact of the car cigarette lighter when the telescopic slider slides away from the housing.

In the above-mentioned vehicle charging device, the spring core column can be fixed on the casing, and the spring core column is provided with a variable diameter spring. The expansion and contraction direction of the variable diameter spring is along the length direction of the casing, and the two ends of the variable diameter spring are respectively tightened on the casing. And on the telescopic slider.

In the above-described in-vehicle charging device, the pendulum block is mounted on the housing via a pinned pin, and the pendulum block is rotatable about the pinning pin.

When the telescopic slider of the invention slides off the casing and the pendulum block is opened, the end of the telescopic slider and the pendulum end can be The head contacts the positive and negative poles of the car cigarette lighter respectively, and acts as a charging connection device for drawing power from the car cigarette lighter; when the telescopic slider slides and abuts against the casing and the pendulum block rotates and folds, the occupied space is small and convenient. Collection. BRIEF abstract

Features and capabilities of the present invention are further described by the following examples and the accompanying drawings.

Figure 1 is an exploded view of a preferred embodiment of the present invention;

Figure 2 is a front view and a right side view showing the assembly of the embodiment of the present invention;

Figure 3 is a rear view and a left side view of the assembly diagram of the embodiment of the present invention shown in Figure 2;

Figure 4 is a cross-sectional view taken along line C-C of Figure 2;

Figure 5 is a cross-sectional view taken along line D-D of Figure 2;

Figure 6 is a cross-sectional view taken along line G-G of Figure 2;

Figure 7 is a cross-sectional view taken along line E-E of Figure 3;

Figure 8 is a cross-sectional view taken along line F-F of Figure 3;

Figure 9 is a cross-sectional view taken along line J-J of Figure 3;

Figure 10 is a cross-sectional view taken along line A-A of Figure 4;

Figure 11 is a cross-sectional view taken along line I-I of Figure 4;

Figure 12 is a cross-sectional view taken along line B-B of Figure 5;

Figure 13 is a cross-sectional view taken along line H-H of Figure 5;

Figure 14 is a perspective view showing the embodiment of the present invention assembled in a charger body and in an unfolded state;

Figure 15 is a cross-sectional view of the assembled structure shown in Figure 14;

Figure 16 is a left side elevational view of the assembled structure of Figure 14;

Figure 17 is a front elevational view of the assembled structure of Figure 14;

Figure 18 is a cross-sectional view of the embodiment of the present invention assembled in a charger body and in a folded state; Figure 19 is a schematic view showing the appearance of the embodiment of the present invention assembled in a charger body and in a folded state; Figure 20 is an embodiment of the present invention A three-dimensional diagram of the working inside the car cigarette lighter;

Figure 21 is a left side view of the embodiment of the present invention shown in Figure 20 when it is inserted into a car cigarette lighter; Figure 22 is a cross-sectional view taken along line MM of Figure 21; Figure 23 is a cross-sectional view taken along line NN of Figure 21;

Fig. 24 is a schematic view showing the action of the present invention in the case where the pop-up is opened outward in the body of the charger, and the direction in which the present invention is gradually opened from the folded state to the fully-expanded state in the standby state is indicated in the direction of the double-line arrow. BEST MODE FOR CARRYING OUT THE INVENTION

The invention will now be described in further detail with reference to the accompanying drawings.

A preferred embodiment of the present invention has the structure shown in Fig. 1, and its assembly structure is shown in Figs. 2 to 13. The casing 1 of the present invention is formed into a strip-shaped cabinet shape, on which the telescopic slider 10 is mounted through the limiting boss 15, and the telescopic slider 10 is elastically contacted with the casing 1 through the reducing spring 11, and the reducing spring 11 is sleeved on the spring. The two ends of the stem 14 are respectively fastened on the housing 1 and the telescopic slider 10, and the spring stem 14 is fixed on the housing 1. The telescopic slider 10 can be extended by the elastic force of the reducing spring. When the telescopic slider 10 is slid away from the housing 1, the length thereof should be such that the central contact 8 fixed at the end thereof through the pin 9 can touch the cigarette as the positive electrode in the on-board cigarette lighter 200 (see Fig. 23). The contact 220 (see Figure 23) forms an electrical connection.

The structural arrangement of the pendulum block 5 will be described below. The pendulum block 5 is mounted on the housing 1 via a pinned pin 4, the pin 3 is fitted with a gear 3, the gear 3 is rotatable about the pin 4, and the pendulum block 5 is fixed to the gear 3, and It can rotate with the gear 3 around the fixed pin shaft 4. Specifically, the pendulum block 5 can be formed into a strip shape, and when the rotation is folded, the length direction is consistent with the longitudinal direction of the casing 1, and the elastic piece 6 is elastically mounted on both ends of the pendulum block 5, and the elastic piece is mounted. The size and elasticity of 6 satisfy the following conditions: When the pendulum block 5 rotates, the diameter of the movement path of the spring piece 6 is larger than the inner diameter of the car cigarette lighter, and the pendulum block 5 and the elastic piece 6 can be squeezed by the inner wall of the car cigarette lighter 200 (see Fig. 23). It is placed in the car cigarette lighter to form an electrical connection with the inner wall of the car cigarette lighter 200.

Further, the telescopic slider 10 is provided with a fixed rack 7. When the rack 7 slides toward the spring stem 14 with the telescopic slider 10, the rack 7 meshes with the gear 3, and when the rack 7 follows the telescopic slider 10 When sliding off the spring stem 14, the rack 7 is disengaged from the gear 3 (Fig. 10). Therefore, the sliding of the telescopic slider 10 in the casing 1 can cause the pendulum block 5 to rotate accordingly.

In addition, as shown in FIG. 10 and FIG. 12, a fan-shaped limiting slot 59 is disposed on the surface of the pendulum block 5, and a cylindrical body a and a flexible conductive contact hook 2 are fixed on the housing 1, please refer to FIG. And Figure 8 shows. The cylinder a is embedded in the limiting slot 59. When the pendulum block 5 rotates, the cylinder a rotates in the limiting slot 59. Sliding in the circumferential direction; when the pendulum block 5 is rotated until its length direction is perpendicular to the longitudinal direction of the casing 1 (as shown in FIG. 12), the limiting groove 59 is end-tightened to the cylinder a, and the contact hook 2 falls into the limit. The groove 59 and the other end of the limiting groove 59 are tightened. A short foot b is also disposed on the rack 7. When the rack 7 slides toward the spring stem 14 with the telescopic slider 10, the path of the short foot b passes through the contact portion of the limiting slot 59 and the contact hook 2.

In the present invention, the positive cable can be connected to the reducing spring 11 and further electrically connected to the center contact 8 at the end of the telescopic slider 10 via the reducing spring 1 1 . In the working state, the center contact 8 can be touched. The cigarette lighter contact 220 as a positive electrode in the on-board cigarette lighter 200 is touched. The pendulum block 5 can be connected to the negative cable as a negative electrode via the contact hook 2 .

The present invention can be integrated into the assembled electronic product charger 100 by providing a rotating shaft at the rotating fixed shaft hole 19, as shown in Figs. When not working, the present invention can be folded into the accommodating groove 120 of the charger 100, and the telescopic slider 10 and related components are compressed in the casing by the pressure from the inner wall of the charger 100, as shown in Figs. 18 and 19. Shown.

Prior to the operation of the present invention, the housing 1 is rotated out of the body of the charger 100, as shown in FIG. During the pulling out process, the telescopic slider 10 is pushed out by the reducing spring 1 1 installed in the housing 1 and slid along the slide in the housing 1 to the end of the sliding. The cover 1 is fixedly disposed on the casing 1 along the sliding direction of the telescopic slider 10 by a fastener 13. The cover 12 is provided with a thrust c (as shown in FIG. 1), and the thrust c is located at the telescopic slider 10 to slide off the shell. On the path of the body 1; when the telescopic slider 10 slides away from the housing 1 to the standby state, that is, the end point of the sliding, the thrust c slides away from the housing 1 in the direction of the housing 1 and the telescopic slider 10 , as shown in Figure 15.

At the same time, the gear 3 mounted on the pendulum block 5 in the casing 1 is rotated by the rack 7 embedded in the telescopic slider 10, and the rack 7 and the gear 3 are gradually disengaged, so that the pendulum block 5 is rotated 90 degrees clockwise. Arrive at the open position. At this time, the cylinder a in the casing 1 and the contact hook 2 of the rivet in the casing 1 respectively restrict the front and rear rotation of the pendulum block 5, so that the pendulum block 5 works in the hole of the car cigarette lighter 200 inserted in the present invention. The yaw angle is not too large (see Figure 10). The limiting action of the contact of the contact piece is generated in the following manner: During the rotation of the pendulum block 5 from the folded position to the open position, the front end slope of the contact hook 2 is deformed by the rotation of the lower surface of the pendulum block 5 The limiting slot 59 of the lower portion of the pendulum block 5 is swung to the upper portion of the contact hook 2, and the contact hook 2 is springed into the limiting slot 59, so that the rotation of the pendulum block 5 is restricted. The contact hook 2 is also used as the negative contact of the present invention.

The invention can be used as an insertion of a portable charger for charging an electronic product by using a car cigarette lighter The power supply extracting device is shown in Fig. 20 to Fig. 23. The present invention can be electrically connected to the cigarette lighter contact 220 in the on-board cigarette lighter 200 through a positive cable (not shown), and electrically connected to the inner wall of the on-board cigarette lighter 200 through a negative cable (not shown).

Specifically, when charging, the telescopic slider 10 is inserted into the hole of the car cigarette lighter 200, and the center contact 8 on the telescopic slider 10 is in contact with the cigarette lighter contact 220 in the car cigarette lighter 200, and is reduced in diameter. The center contact 8 is in close contact with the cigarette lighter contact 220 by the action of the spring 11. At the same time, the pendulum block 5 enters the hole, and the two elastic pieces 6 which are riveted on the pendulum block 5 are deformed under the pressure of the inner wall of the cigarette lighter contact 220 and are pressed up in the car cigarette lighter 200, because the two elastic pieces 6 are on the vehicle spot. The frictional force generated by the inner wall of the cigarette lighter 200 is greater than the spring pressure of the variable diameter spring 11 to the center contact of the on-board cigarette lighter 200, so that the two electrodes of the present invention can be kept in continuous contact with the two electrodes of the on-board cigarette lighter 200.

The above-mentioned two-pole cable of the charging device of the present invention can be introduced into the rotating fixed shaft hole 19 (FIG. 1) of the housing 1, wherein the positive pole is connected to the reducing spring 1 1 , and the reducing spring 10 is mounted on the telescopic slider 10 The upper center contact 8 is connected; the negative electrode is connected to the contact hook 2, and the front end of the contact hook 2 is connected to the swing block 5 and the elastic piece 6, and the contact hook 2 simultaneously serves as a limit member for swinging the pendulum block 5 and The contact of the power supply.

When the present invention is folded, the center contact 8 of the front end face of the telescopic slider 10 is lightly pressed into the casing 1 while the casing 1 is deflected toward the body of the charger 100. At this time, the short foot b on the rack 3 can be used as the unlocking element before the swinging of the pendulum block. Since the short foot b of the rack 7 presses the front end slope of the contact hook 2 before the rack 7 meshes with the gear 3, the contact hook is hooked. 2 The hook portion descends, and the swing limit of the pendulum block 5 is released, so that the swing block 5 can be rotated by the gear 3 with the retraction of the telescopic slider 10 to return to the folding position.

The size of the pendulum block 5 is determined based on the inner diameter of the inner wall of the on-vehicle cigarette lighter 200 (which can be determined as the length of the pendulum block 5) and the folding size of the present invention (which can be determined as the width of the pendulum block 5). It is advantageous to increase the elastic pressure of the elastic piece 6 at the end of the pendulum block 5 on the hole wall of the car cigarette lighter 200.

The telescopic slider 10 can be made of plastic and integrated with the metal-made rack 7 to facilitate wear resistance of the machine and insulation of the circuit.

Industrial applicability

In the charging device of the present invention, when the telescopic slider slides away from the casing and the pendulum block is opened, the positive and negative poles of the car cigarette lighter can be respectively contacted by the end of the telescopic slider and the pendulum block end, and the power is taken out from the car cigarette lighter. Charging connection device; When the telescopic slider slides and abuts against the housing and the pendulum block rotates and folds, the occupied space is small and convenient for collection.

Claims

Rights request

What is claimed is: 1. An in-vehicle charging device comprising: a positive electrode electrically connectable to a center contact of a car cigarette lighter; and a negative electrode electrically connectable to an inner wall of the car cigarette lighter, wherein the charging device further comprises a strip shape a housing, a telescopic slider mounted in elastic contact with the housing and slidably mounted along the length of the housing, and a swinging block rotatably mounted on the housing; wherein the telescopic slider and The positive electrode is electrically connected, and the pendulum block is electrically connected to the negative electrode; the housing and the telescopic slider are sized such that the end portion away from the housing when the telescopic slider slides away from the housing can touch the car cigarette lighter The center contact; the pendulum block has a strip shape, and when the rotation is folded, the length direction thereof is consistent with the length direction of the casing, and the length of the pendulum block is such that the end portion of the pendulum block can touch the car cigarette when the rotation is opened. Inside the wall.

2. The in-vehicle charging device according to claim 1, wherein the housing is fixed with a spring core, and the spring core is provided with a reducing spring, and the expanding and contracting direction of the reducing spring is along the length direction of the housing. Both ends of the reducing spring are respectively tightened on the housing and the telescopic slider.

3. The in-vehicle charging device according to claim 1, wherein the pendulum block is mounted on the housing by a pin, and the pendulum block is rotatable about the pin axis.

4. The in-vehicle charging device according to claim 3, wherein at least one end of the pendulum block is provided with an elastic conductive elastic piece, and the size and elasticity of the elastic piece satisfy the following conditions: the movement path of the spring piece when the pendulum block rotates The diameter is larger than the inner diameter of the car cigarette lighter, and when the elastic piece is pressed by the inner wall of the car cigarette lighter, it is in close contact with the inner wall of the car cigarette lighter.

The in-vehicle charging device according to claim 3, wherein the set pin has a gear set on the pin, the gear is rotatable about the pin shaft, the pendulum block is fixed on the gear, and the telescopic block is The rack is fixed on the upper side; when the rack slides toward the spring stem with the telescopic slider, the rack gradually meshes with the gear, and when the rack slides away from the spring stem with the telescopic slider, the rack and the gear are gradually disengaged.

The vehicle-mounted charging device according to claim 5, wherein the pendulum block has a slat shape, and a fan-shaped annular limiting groove is disposed on the surface of the pendulum block, and the column body is fixedly disposed on the casing and has Elastic conductive contact hook; the cylinder is embedded in the limit groove, and when the swing block rotates, the cylinder slides in the rotation direction in the limit groove; when the swing block rotates to the length direction thereof perpendicular to the length direction of the casing One end of the limiting slot is tightened to the cylinder, the contact hook falls into the limiting slot and the other end of the limiting slot is tightened; the rack is provided with a short foot, and the rack slides with the telescopic slider to the spring When the stem is used, the short path of motion passes through the limit slot and the contact The contact area of the hook.

7. The in-vehicle charging device according to claim 1, wherein the cover is fixedly disposed along a sliding direction of the telescopic slider, and the cover is provided with a thrust, and the thrust is located at the telescopic The slider slides away from the path of the housing; when the telescopic slider slides away from the housing to the standby state, the anti-rotation slider slides away from the housing in the reverse direction of the housing.