CN210694481U - Electrical connection device of aluminum-based circuit board - Google Patents
Electrical connection device of aluminum-based circuit board Download PDFInfo
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- CN210694481U CN210694481U CN201921858076.2U CN201921858076U CN210694481U CN 210694481 U CN210694481 U CN 210694481U CN 201921858076 U CN201921858076 U CN 201921858076U CN 210694481 U CN210694481 U CN 210694481U
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- circuit board
- bonding pad
- aluminum
- based circuit
- electrical connection
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Abstract
The utility model provides an aluminium base circuit board's electrical connection device, include: an aluminum-based circuit board, a bridge circuit board, and a connection terminal; the bridging circuit board is welded on the aluminum-based circuit board; a first bonding pad is arranged on the aluminum-based circuit board, a second bonding pad is arranged on the bottom surface of the bridging circuit board, and the first bonding pad is matched with the second bonding pad; the aluminum-based circuit board is further welded with a metal-based printed circuit board, an LED module is mounted on the metal-based printed circuit board, and the input end and the output end of the LED module are both connected with the first bonding pad; the connecting terminal is welded on the second bonding pad, and the two aluminum-based circuit boards are electrically connected through the connecting terminal. The utility model discloses an between two and above electrically independent aluminium base circuit board modules, realize electric connection with the help of connecting terminal or wire and bridging printed circuit board welding, it is reliable to have the connection, is applicable to scale production, cost advantage lower relatively.
Description
Technical Field
The utility model relates to an electrical connection of circuit board especially relates to an electrical connection of aluminium base circuit board for LED module.
Background
The electrical connection between electronic parts or electrical components assembled on a printed circuit board is realized by a method which is most common and well known by the public, wherein the connecting wire is directly welded by a lead welded among the electrical components or a connector with one end being welded and the other end being in various forms or a connector with both ends being commonly called as a connecting terminal, so that the advantages of firmness and reliability are achieved; the connection terminal has the outstanding advantage of flexibility, and how to select the connection terminal depends on the characteristics of application occasions.
At present, the LED lighting is rapidly developed, and in view of the special requirement that the LED lighting needs good heat dissipation, the common glass fiber or epoxy resin printed circuit board is difficult to meet the requirement, and the LED lamp bead needs to be mounted on the aluminum-based circuit board with excellent heat dissipation performance, so that the LED module with larger power needs larger heat dissipation amount. Generally, a printed circuit board is connected by adopting a surface-mounted wiring terminal, and if the back of the circuit board is connected and mounted, the aluminum-based circuit board with good heat dissipation is extremely difficult to directly weld, and the aluminum-based circuit board is difficult to electrically connect; if the wire is directly used for welding the connecting wire, because the aluminum-based circuit board has excellent heat conduction capability, reliable and firm welding is difficult to realize, cold welding is easy to cause or welding connection cannot be realized, the connection reliability is extremely low, electric arcs caused by poor contact are easy to cause, and the like, and the LED illumination can not normally work or other potential safety hazard accidents are often caused.
Disclosure of Invention
In view of the above shortcomings of the prior art, an object of the present invention is to provide an electrical connection device for an aluminum-based circuit board, which is used to solve the problem that the aluminum-based circuit board has excellent heat conduction capability and reliable and firm welding is difficult to realize in the prior art.
To achieve the above and other related objects, the present invention provides an electrical connection device for an aluminum-based circuit board, including: an aluminum-based circuit board, a bridge circuit board, and a connection terminal;
the bridging circuit board is welded on the top surface of the aluminum-based circuit board;
the top surface of the aluminum-based circuit board is provided with a first bonding pad, the bottom surface of the bridge circuit board is provided with a second bonding pad, the top surface of the bridge circuit board is provided with a third bonding pad, the first bonding pad is matched with the second bonding pad, the third bonding pad is matched with the second bonding pad, and the first bonding pad, the second bonding pad and the third bonding pad are provided with corresponding through holes;
the top surface of the aluminum-based circuit board is welded with a metal-based printed circuit board, an LED module is mounted on the metal-based printed circuit board, and the input end and the output end of the LED module are both connected with the first bonding pad;
the connecting terminal is welded on the third bonding pad, and the two aluminum-based circuit boards are electrically connected through the connecting terminal.
In an embodiment of the present invention, the thickness of the copper foil of the first bonding pad and the second bonding pad matches with the current flowing between the two aluminum-based circuit boards.
In an embodiment of the present invention, the first bonding pad is located at an end face of the edge of the aluminum-based circuit board.
In an embodiment of the present invention, the connection terminal includes a plastic seat, two pins and two insertion holes; two the contact pin welding is in on the bridging circuit board, two the welding has the wire in the jack, two realize electrical connection through the wire between the aluminium base circuit board.
In an embodiment of the present invention, two of the contact pins pass through the through holes of the first pad and the second pad and are connected to the third pad.
In an embodiment of the present invention, the LED light emitting module includes a plurality of LED chips, and the plurality of LED chips are connected in series and/or in parallel.
As above, the utility model discloses an electrical connection device of aluminium base circuit board has following beneficial effect: between two or above electrically independent aluminium base circuit board module, realize electrical connection with bridging printed circuit board welding with the help of connecting terminal or wire, have the reliable connection, be applicable to large-scale production, cost advantage lower relatively.
Drawings
Fig. 1 shows the structure of the present invention.
Fig. 2 shows a schematic diagram of the aluminum-based circuit board of the present invention.
Fig. 3 is a schematic bottom view of the bridge circuit board according to the present invention.
Fig. 4 is a schematic top view of the bridge circuit board according to the present invention.
Fig. 5 is a schematic structural diagram of the connection terminal of the present invention.
Fig. 6 shows a schematic view of the installation of the connection terminal of the present invention.
Fig. 7 is a schematic view of the installation of the lead of the present invention.
Description of the element reference numerals
1. An aluminum-based circuit board; 2. a bridge circuit board; 3. a connection terminal;
101. a metal-based printed circuit board; 1011. an LED module; 102. a first pad;
201. a second pad; 202. a third pad; 301. a plastic seat; 302. inserting a pin; 303. and (4) inserting the jack.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
The first embodiment is as follows:
referring to fig. 1, the present invention provides an aluminum-based circuit board 1, a bridge circuit board 2 and a connection terminal 3.
The bridge circuit board 2 is welded on the aluminum-based circuit board 1; the connecting terminal 3 is located the bottom of aluminium base circuit board 1, and the welding is in on the bridging circuit board 2, two pass through between the aluminium base circuit board 1 connecting terminal 3 realizes electrical connection.
Referring to fig. 2, a metal-based printed circuit board 101 is soldered on the aluminum-based circuit board 1;
the metal-based printed circuit board 101 is provided with LED modules 1011, the number of the LED chips of the LED modules 1011 is determined according to actual power requirements, the serial connection or parallel connection mode of the LED chips is determined according to driving requirements, a first bonding pad 102 is arranged on the end face of the aluminum-based circuit board 1 close to the edge, and the input end and the output end of the LED modules 1011 are connected with the first bonding pad 102;
the first bonding pads 102 are divided into two groups according to input and output, each group is provided with three bonding pads, and the three bonding pads are communicated with each other.
Referring to fig. 3, a second pad 201 is disposed on a bottom surface of the bridge circuit board 2, the second pad 201 is matched with the first pad 102, and the bridge circuit board 2 is soldered on the first pad 102 through the second pad 201; for the surface mounted LED module 1011, the LED module can be soldered on the first pad 102 and the second pad 201 by reflow soldering.
Referring to fig. 4, a third pad 202 is disposed on the top surface of the bridge circuit board 2, the third pad 202 is matched with the second pad 201, and the width of the copper foil trace of the third pad 202 is matched with the current requirement flowing between the two aluminum-based circuit boards 1.
Corresponding through holes are arranged on the first bonding pad 102, the second bonding pad 201 and the third bonding pad 202.
Referring to fig. 5, the connection terminal 3 includes a plastic base 301, two pins 302 and two jacks 303;
referring to fig. 6, the two aluminum-based circuit boards 1 to be connected are each provided with a connection terminal 3, the connection terminal 3 passes through the through holes of the first pad 102 and the second pad 201 through the two pins 302, is welded in the through hole of the third pad 202, and is connected with a wire in the two insertion holes 303 by welding, so that the two aluminum-based circuit boards 1 can be electrically connected through the connection wire.
Example two: the difference between the present embodiment and the first embodiment is: only one of the two aluminum-based circuit boards 1 to be connected is mounted with a connection terminal 3,
referring to fig. 6 and 7, a wire is soldered in the insertion hole 303 of the connection terminal 3, and the other end of the wire is soldered directly to the third pad 202 of another aluminum-based circuit board, so as to achieve electrical connection.
Example three: the difference between this embodiment mode and the first or second embodiment mode is that: the two aluminum-based circuit boards 1 to be connected are not provided with the connecting terminal 3, and the through holes of the third bonding pads 202 of the two aluminum-based circuit boards are directly electrically connected through connecting wires.
When more electrically independent aluminum-based circuit boards 1 need to be connected, it is sufficient to add the corresponding second pads 201 and third pads 202 on the corresponding bridge circuit board 2.
To sum up, the utility model discloses an between two and above electrically independent aluminium base circuit board modules, realize electrical connection with the help of connecting terminal or wire and bridging printed circuit board welding, it is reliable to have the connection, is applicable to scale production, advantage that the cost is lower relatively. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. An electrical connection device for an aluminum-based circuit board, said device comprising: an aluminum-based circuit board, a bridge circuit board, and a connection terminal;
the bridging circuit board is welded on the top surface of the aluminum-based circuit board;
the top surface of the aluminum-based circuit board is provided with a first bonding pad, the bottom surface of the bridge circuit board is provided with a second bonding pad, the top surface of the bridge circuit board is provided with a third bonding pad, the first bonding pad is matched with the second bonding pad, the third bonding pad is matched with the second bonding pad, and the first bonding pad, the second bonding pad and the third bonding pad are provided with corresponding through holes;
the top surface of the aluminum-based circuit board is welded with a metal-based printed circuit board, an LED module is mounted on the metal-based printed circuit board, and the input end and the output end of the LED module are both connected with the first bonding pad;
the connecting terminal is welded on the third bonding pad, and the two aluminum-based circuit boards are electrically connected through the connecting terminal.
2. The electrical connection device of an aluminum-based circuit board according to claim 1, wherein: the width of the copper foil of the first bonding pad and the width of the copper foil of the second bonding pad are matched with the current requirement flowing between the two aluminum-based circuit boards.
3. The electrical connection device of an aluminum-based circuit board according to claim 2, characterized in that: the first bonding pad is located at the end face of the edge of the aluminum-based circuit board.
4. The electrical connection device of an aluminum-based circuit board according to claim 1, wherein: the connecting terminal comprises a plastic seat, two contact pins and two jacks; two the contact pin welding is in on the bridging circuit board, two the welding has the wire in the jack, two realize electrical connection through the wire between the aluminium base circuit board.
5. The electrical connection device of an aluminum-based circuit board according to claim 4, wherein: and the two contact pins penetrate through the through holes of the first bonding pad and the second bonding pad and are connected with the third bonding pad.
6. The electrical connection device of an aluminum-based circuit board according to claim 1, wherein: the LED light-emitting module comprises a plurality of LED chips which are connected in series and/or in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921858076.2U CN210694481U (en) | 2019-10-31 | 2019-10-31 | Electrical connection device of aluminum-based circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921858076.2U CN210694481U (en) | 2019-10-31 | 2019-10-31 | Electrical connection device of aluminum-based circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210694481U true CN210694481U (en) | 2020-06-05 |
Family
ID=70888343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921858076.2U Active CN210694481U (en) | 2019-10-31 | 2019-10-31 | Electrical connection device of aluminum-based circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210694481U (en) |
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2019
- 2019-10-31 CN CN201921858076.2U patent/CN210694481U/en active Active
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