CN201081819Y - Vehicle-mounted charger - Google Patents

Abstract

The utility model discloses a vehicle-mounted charger, including a casing, the circular shape anodal button hole of pressing has been seted up on the top of casing, and several negative pressure button hole has been seted up to the side of casing. The shell is internally provided with a positive electrode assembly, a negative electrode assembly, a printed circuit board and an interface bracket positioned below the printed circuit board. The positive electrode assembly comprises a positive electrode press button, and the positive electrode press button is provided with a press button part which extends out of the shell from a positive electrode press button hole. The cathode assembly includes a plurality of cathode press buttons having cathode press button portions that protrude from the cathode press button holes out of the housing surface. A USB interface assembly and an earphone charging connector for charging the Bluetooth earphone are fixedly held in the shell through the interface support. The utility model adopts the printed circuit board type structure, thereby the volume of the charger is smaller; have USB interface assembly and earphone interface assembly that charges simultaneously, the service function is more.

Description

car charger

technical field

The utility model relates to a charger, in particular to a vehicle-mounted charger for charging electronic products by using a DC power supply, which is suitable for use on vehicles, airplanes and other vehicles.

Background technique

At present, many electronic products, such as mobile phones, MP3 players, etc., are more and more widely used in people's daily life. In recent years, many of these electronic products are equipped with Bluetooth earphones. Electronic products need to be recharged after being used for a period of time. For the convenience of people to travel, car chargers have appeared on the market to charge electronic products in time by using the DC power on vehicles or aircraft.

However, the car chargers currently on the market have relatively few functions and cannot charge the Bluetooth earphones; moreover, the current car chargers are generally large in size and have a section of wire, which is inconvenient to carry.

Utility model content

The purpose of this utility model is to provide a car charger that is easy to carry, has multiple functions and can charge Bluetooth earphones.

In order to achieve the above purpose, the vehicle charger provided by the utility model includes an insulating shell, the upper end of the shell is provided with a positive pole pressure button hole, and the side edge of the shell is provided with a negative pole pressure button hole; There is a positive electrode assembly and a negative electrode assembly, the positive electrode assembly includes a positive electrode push button, the positive electrode push button is installed in the positive electrode push button hole of the casing, and a part of the positive electrode push button protrudes from the positive electrode push button hole The surface of the casing; the negative electrode assembly includes a negative electrode pressure button, which is installed in the negative electrode pressure button hole of the casing, and a part of the negative electrode pressure button protrudes from the surface of the casing from the negative electrode pressure button hole; a printed The circuit board is electrically connected to the printed circuit board with a USB interface assembly and an earphone charging interface assembly. The earphone charging interface assembly includes a cavity-shaped earphone charging socket and an earphone charging connector. The earphone charging connector is located on The earphone charging socket is electrically connected to the printed circuit board.

As mentioned above, the components of the vehicle charger of the present invention are all arranged in the housing without exposed wires, and a printed circuit board structure is adopted, so that the charger can be made smaller in size, so it is more convenient to carry. And this car charger not only has the USB interface assembly that can charge multiple electrical products, but also installs the earphone charging connector that can charge the Bluetooth earphone, so that it has more functions.

Description of drawings

In the accompanying drawings

Fig. 1 is a sectional view of the vehicle charger of the present invention.

FIG. 2 is an exploded perspective view of the on-board charger shown in FIG. 1 .

FIG. 3 is a three-dimensional cross-sectional view of the housing of the on-board charger shown in FIG. 1 .

FIG. 4 is a cross-sectional view of the positive electrode assembly of the on-board charger shown in FIG. 1 .

FIG. 5 is a cross-sectional view of the positive pole bracket of the vehicle charger shown in FIG. 1 .

FIG. 6 is a perspective view of the positive pole bracket of the vehicle charger shown in FIG. 5 .

FIG. 7 is a perspective view of the circuit board support of the vehicle charger shown in FIG. 1 .

FIG. 8 is a perspective view from another angle of the circuit board bracket shown in FIG. 7 .

FIG. 9 is a three-dimensional sectional view of the interface bracket of the vehicle charger shown in FIG. 1 .

FIG. 10 is a perspective view of the earphone charging connector of the car charger shown in FIG. 1 .

The reference signs of each component in the figure are explained as follows:

Housing 110 Bevel 111

Positive pressure buttonhole 112 Negative pressure buttonhole 113

Rib 114 Bracket block 115

End stop 116 Circuit board support 130

Basin body 131 Basin rim 132

Circuit board groove 133 Strengthening rib 134

Limiting block 136 Card block 137

Limiting post 138 Basin bottom 139

Positive pole bracket 150 Barrel 151

Convex edge 152 Circuit board support block 153

Semicircular hole 154 Positive connecting hole 155

Support ribs 156 Tube bottom 157

Circuit board groove 158 Interface bracket 170

Bracket body 171 Bracket flange 172

Headphone charging limit wall 173 Limiting platform 174

Accommodating cavity 175 USB interface hole 176

Bracket Rib 177 Bracket Bottom 178

Headphone charging jack 179 Headphone charging jack 181

Printed circuit board 190 Negative electrode assembly 300

Negative pole pressure button 310 Negative pole pressure button part 311

Contact part 312 Elastic arm limit slot 313

Negative pole 320 Negative pole elastic arm 321

Base 322 External Fixing Claw 323

Internal fixed claw 324 Elastic arm contact part 325

Positive electrode assembly 400 Positive electrode sleeve 410

Bottom 411 Boss 412

Neck 413 Spring Compression 420

Positive push button 430 Push button part 431

Button Barrel 432 Compression Spring 450

Positive connection piece 460 Positive connection part 461

Electrode connection part 462 Boss hole 463

Circuit board connection hole 464 USB interface assembly 500

Headphone charging connector 600 Disk body 601

Boss body 602 Fastening post 603

Electrode terminal connector 604 External contact point of terminal 605

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 and FIG. 2 , the vehicle charger of the present invention includes a housing 110 , and a circuit board bracket 130 , a positive pole bracket 150 and an interface bracket 170 are installed in the housing 110 . The casing 110 holds a printed circuit board 190 and a negative electrode assembly 300 through the circuit board holder 130, holds a positive electrode assembly 400 through the positive electrode holder 150, and holds a USB interface assembly 500 through the interface holder 170. And a headset charging connector 600 for charging the bluetooth headset.

Please refer to FIG. 3 , the housing 110 is made of insulating material, and its main body is cylindrical in appearance. The top of the frustum-shaped part of the casing 110 is provided with a circular positive buttonhole 112, and the middle and upper part of the cylindrical part is provided with three negative buttonholes 113 evenly distributed along the side periphery. The negative buttonholes 113 are up and down. Extended slots. Corresponding to the truncated conical part, there are three ribs 114 evenly distributed along the periphery protruding from the inner side of the housing 110 . The inner side of the casing 110 is provided with an annular bracket block 115 below the negative button hole 113 . An annular end stopper 116 is provided on the inner side of the housing 110 close to the lower end.

Referring to Fig. 1, Fig. 3 and Fig. 4, the positive electrode assembly 400 includes a cylindrical positive electrode sleeve 410, the positive electrode sleeve 410 has a sleeve bottom 411, and a cylindrical boss 412 protrudes from the center of the lower surface of the sleeve bottom 411 . The upper port of the positive electrode sleeve 410 is slightly contracted inward to form a constriction 413 . The anode sleeve 410 is provided with an anode push button 430 . The upper part of the positive push button 430 is a solid cylindrical push button part 431 , and the lower part is a cylindrical push button barrel part 432 with an opening downward. The button portion 431 of the positive button 430 protrudes from the positive button hole 112 to the outside of the housing 110 . The outer diameter of the button barrel portion 432 is slightly larger than the inner diameter of the constriction 413 of the positive electrode sleeve 410 . When the push button barrel 432 is put into the positive electrode sleeve 410 , it can be realized by heating and cooling by utilizing the thermal expansion and contraction property of the material. A cylindrical spring compression sleeve 420 with an opening downward is fitted inside the push button cylinder portion 432 . A compression spring 450 is installed between the spring compression sleeve 420 and the sleeve bottom 411 of the positive electrode sleeve 410 .

Referring to FIG. 1 , FIG. 3 , FIG. 5 and FIG. 6 , the positive electrode holder 150 has a cylindrical body 151 , and the positive electrode sleeve 410 of the positive electrode assembly 400 is installed in the positive electrode holder 150 . A bottom 157 is provided at the lower end of the cylinder 151 . A circuit board groove 158 is recessed upwards from the bottom of the cylinder bottom 157 . The cylinder bottom 157 defines a positive connection hole 155 near the groove 158 of the circuit board. The cylinder bottom 157 defines a semicircular hole 154 at the groove 158 of the circuit board. Two square circuit board support blocks 153 protrude downward from one side of the circuit board groove 158 from the cylinder bottom 157 .

An annular convex edge 152 protrudes outward from the middle circumference of the cylindrical body 151 of the positive electrode support 150 . The part of the positive pole bracket 150 located on the protruding edge 152 is installed in the space enclosed by the three ribs 114 in the casing 110 . The cylindrical body 151 protrudes downward and outward from the convex edge 152 with stepped supporting ribs 156 , and there are three supporting ribs 156 evenly distributed on the circumference of the cylindrical body 151 . The supporting ribs 156 are supported inside the casing 110 .

Please refer to FIG. 1 , FIG. 2 and FIG. 5 , a positive connecting piece 460 passes through the positive connecting hole 155 of the cylinder bottom 157 of the positive support 150 . The positive connection piece 460 has a large semicircular positive connection portion 461 , and a boss hole 463 is opened on the positive connection portion 461 . The boss hole 463 is socketed with the boss 412 of the positive electrode sleeve 410 in the positive electrode assembly 400 . The straight edge of the positive connection part 461 is bent and extended to form an electrode connection part 462 , and a circuit board connection hole 464 is opened on the electrode connection part 462 .

Referring to FIG. 1 , FIG. 2 and FIG. 3 , the negative electrode assembly 300 includes three negative electrode push buttons 310 and a negative electrode 320 . Negative electrode push button 310 has a negative electrode push button part 311 with a circular arc shape at both ends. One side of the negative electrode push button part 311 extends to both sides and one end to form a contact part 312, and the middle part of the contact part 312 is concave inward. Form the limit groove 313 of the elastic arm. The three negative push buttons 310 are installed in the negative push button holes 113 of the casing 110 respectively, and the negative push button portions 311 of the negative push buttons 310 pass through the negative push button holes 113 and protrude from the surface of the casing 110 . The negative electrode 320 has an annular base 322 . Three slat-shaped negative elastic arms 321 extend upward and outward from the upper side of the base 322 . The ends of the negative elastic arms 321 are bent to form an elastic arm abutting portion 325 . The elastic arm abutting portion 325 is disposed in the elastic arm limiting groove 313 of the negative pole pressing button 310 and abuts against the contact portion 312 . Three outer fixing claws 323 are formed on the lower edge of the base portion 322 extending downward and bending outward substantially vertically. The lower edge of the base portion 322 extends downwards from two sides of one of the outer fixing claws 323 and is substantially vertically bent inward to form two inner fixing claws 324 . Both the outer fixing claw 323 and the inner fixing claw 324 are provided with fixing holes.

Referring to FIG. 2 , FIG. 7 and FIG. 8 , the circuit board support 130 is approximately pot-shaped as a whole, and has a pot body 131 , a pot bottom 139 and a pot rim 132 . A circuit board slot 133 is defined on the circuit board support 130 . The circuit board groove 133 separates the basin edge part 132 of the circuit board support 130 from one side of the basin body part 131, and divides the entire basin bottom 139 into only a small part connected. The circuit board support 130 protrudes five limiting columns 138, a rectangular block 137 and one edge divided by the circuit board groove 133 on the outer surface of the basin bottom 139, which is approximately triangular and has two sides. Limiting block 136 whose edge transitions with a circular arc. These position-limiting posts are respectively clamped with the fixing holes on the outer fixing claw 323 and the inner fixing claw 324 of the negative electrode 320 in the negative electrode assembly 300 . Four reinforcing ribs 134 are arranged in the cavity enclosed by the basin body 131 and the basin bottom 139 .

Please refer to FIG. 2 , FIG. 6 and FIG. 7 , the upper end of the printed circuit board 190 is snapped into the circuit board groove 158 of the positive pole bracket 150 . After the electrode connecting portion 462 of the positive electrode connecting piece 460 passes through the positive electrode connecting hole 155 on the positive electrode support 150 , it is fixed together with the printed circuit board 190 through the circuit board connecting hole 464 . The middle part of the printed circuit board 190 passes through the base 322 of the negative electrode 320 and is snapped into the circuit board groove 133 of the circuit board support 130 .

Referring to FIG. 1 , FIG. 3 and FIG. 7 , the edge portion 132 of the circuit board bracket 130 is limited at the bracket block 115 , and the pot body 131 protrudes into the space above the bracket block 115 of the housing 110 .

Please refer to FIG. 1 , FIG. 2 and FIG. 9 , the interface bracket 170 has a cylindrical bracket body 171 . A lower end of the bracket body 171 extends inwardly to form a bracket bottom 178 . The lower end of the bracket body 171 protrudes out from the circumference of the bracket flange 172 ; when assembled with the housing 110 , the upper surface of the bracket flange 172 abuts against the end block 116 of the housing 110 . The bracket bottom 178 defines a USB interface hole 176 , and the bracket bottom 178 protrudes upward from the USB interface hole 176 to form three bracket ribs 177 . The USB interface assembly 500 is clamped between the three bracket ribs 177 and is electrically connected to the printed circuit board 190 . The bottom 178 of the bracket is provided with an earphone charging jack 179 next to the USB interface, and the earphone charging jack 179 is in the shape of a rectangle with arcs at both ends. An earphone charging limiting wall 173 protrudes upward along the circumference of the earphone charging jack 179 from the bottom 178 of the bracket, and the earphone charging limiting wall 173 encloses a cylindrical accommodating cavity 175 . A step-shaped limiting platform 174 inclined at 45 degrees is formed on the earphone charging limiting wall 173 . A portion of the accommodating cavity 175 below the limiting platform 174 is formed as an earphone charging socket 181 .

Please refer to FIG. 2 and FIG. 10 , the earphone charging connector 600 is in the shape of a cylinder facing up and down as a whole, and the outer edge of the cross section of the cylinder is in the shape of a rectangle with arcs at both ends. The lower part of the cylinder has an inclined disc body 601, and the disc body 601 is in the shape of a rectangle with arcs at both ends. A boss body 602 protrudes downward from the disc body 601 , and the lower surface of the boss body 602 is parallel to the lower surface of the disc body 601 . The lower surface of the disc body 601 and the lower surface of the boss body 602 form the lower end surface of the earphone charging connector 600 , which is inclined at an angle of approximately 45 degrees relative to the cross section of the cylinder. Two cylindrical fastening posts 603 protrude from the upper part of the cylinder part of the bluetooth earphone charger connector 600 , and the fastening posts 603 are used for fastening connection with the printed circuit board 190 . Four electrode terminal connectors 604 arranged in parallel protrude from the upper end surface of the cylindrical part of the Bluetooth earphone charger connector 600 near one side. The electrode terminal connectors 604 are used for electrical connection with the printed circuit board 190 . The lower surface of the boss body 602 protrudes downwards from four terminal external contact points 605 arranged in parallel.

Referring to FIG. 1 , FIG. 9 and FIG. 10 , the earphone charging connector 600 is set in the accommodating cavity 175 of the interface bracket 170 . The earphone charging plug 181 and the earphone charging connector 600 form an earphone charging interface assembly.

When using the vehicle charger of the utility model to charge electronic products, you only need to insert the vehicle charger into the charging port of the vehicle, and then you can charge various electronic products with USB plugs and charge batteries with matching USB plugs. Plug the bluetooth headset to charge. When charging the bluetooth earphone, just insert the charging plug end of the bluetooth earphone into the earphone charging socket 181, so that the external contact point 605 of the terminal abuts against the corresponding electrode terminal on the charging plug of the bluetooth earphone.

As mentioned above, the components of the vehicle charger of the present invention are all arranged in the housing 110, without exposed wires, and the printed circuit board 190 is used, so that the charger can be made smaller in size, so it is more convenient to carry. The car charger not only has a USB interface assembly 500 that can charge various electronic products, but also has an earphone charging connector 600 that can charge a bluetooth earphone, so that its functions are further increased.

The protection scope of the present utility model is not limited to the above-mentioned embodiments, and various additions, modifications and substitutions should be included in the scope of the following patent applications. For example, when the earphone charging connector 600 maintains that the four terminal external contact points 605 protrude from the lower end surface and the extension length is appropriate, the rest of the specific structure of the earphone charging connector 600 can be changed in many ways; the base 322 of the negative pole 320 does not must be a perfect circle, and so on.

Claims (10)

1. A vehicle-mounted charger, comprising an insulating housing, the upper end of the housing is provided with a positive button hole, and the side edge of the housing is provided with a negative button hole; the housing is equipped with a positive assembly and a Negative electrode assembly, the positive electrode assembly includes a positive electrode pressure button, the positive electrode pressure button is installed in the positive electrode pressure button hole of the housing, and a part of the positive electrode pressure button protrudes from the positive electrode pressure button hole out of the surface of the housing; the negative electrode assembly It includes a negative pole pressure button, which is installed in the negative pole pressure button hole of the casing, and a part of the negative pole pressure button protrudes from the surface of the casing from the negative pole pressure button hole; it is characterized in that: a printed circuit board is installed in the casing , and the printed circuit board is electrically connected with a USB interface assembly and an earphone charging interface assembly. The earphone charging interface assembly includes a cavity-shaped earphone charging socket and an earphone charging connector. The earphone charging connector is located on the earphone charging port. The socket is electrically connected to the printed circuit board. 2. The car charger according to claim 1, wherein the earphone charging connector has an end face inclined relative to the cross section. 3. The car charger according to claim 2, wherein the inclined end face of the earphone charging connector is inclined at 45 degrees relative to the cross section. 4. The vehicle charger according to claim 1, wherein a circuit board support, a positive pole support and an interface support are housed in the housing, and the printed circuit board passes through the circuit board support, the positive pole support and the interface support. Fixed in the housing, the negative assembly is clamped in the housing through the circuit board bracket, the positive assembly is clamped in the housing through the positive bracket, the USB interface assembly and the earphone charging connector are clamped in the housing through the interface bracket. 5. The vehicle charger according to claim 4, wherein the circuit board support has a basin body, a basin bottom and a basin edge, and a basin edge, basin body and basin bottom on one side are provided with a A circuit board slot; the middle part of the printed circuit board is clamped in the circuit board slot. 6. The vehicle-mounted charger according to claim 1, characterized in that: an interface bracket is installed on the inner lower part of the housing, the interface bracket has a cylindrical bracket body, and the lower end of the bracket body extends inwardly to form the bottom of the bracket , There is a USB interface hole at the bottom of the bracket, and the USB interface assembly is located at the USB interface hole; the earphone charging socket is located next to the USB interface hole. 7. The car charger according to claim 6, characterized in that: the bottom of the bracket of the interface bracket protrudes upwards from the outside of the USB interface hole to form three bracket ribs, and the USB interface assembly is snapped on the three ribs. Between the ribs of the sheet bracket. 8. The car charger according to claim 6, characterized in that: the bottom of the bracket protrudes from the earphone charging limiting wall, and the earphone charging limiting wall forms a cylindrical accommodating cavity, and the earphone charging limiting wall An inclined step-shaped limiting platform is formed, the earphone charging connector is set in the accommodating cavity, and the peripheral edge of the lower end of the earphone charging connector abuts against the limiting platform. 9. The on-board charger according to claim 1, characterized in that: the housing is cylindrical as a whole, the upper part of the cylinder is in the shape of a truncated cone, and the lower end of the cylinder protrudes toward the circumference to form a convex edge. 10. The vehicle charger according to claim 9, wherein the cylindrical part of the housing is provided with three negative pressure buttonholes evenly distributed along the circumference, and each of the three negative pressure buttonholes is equipped with a negative pressure buttonhole. button.

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