Summary of the invention
Technical problem to be solved by this invention is that it is firm to provide a kind of each control module to install, and is not easy to damage, and, maintenance and change all very simple and convenient, uses more flexible, the pcb board of the copper column type welding that cost of manufacture is lower and the LED display unit of this pcb board of use.
Technical scheme of the present invention is as follows: a kind of pcb board of copper column type welding wherein, comprises a PCB mainboard, at least one PCB control board and at least one control module; Described PCB control board is provided with some complete copper post welding holes, and the pin of described control module is welded on the described PCB control board by described complete copper post welding hole; Each side of described PCB control board also is provided with several portions copper post welding hole, and described part copper post welding hole is connected with the circuit that pre-sets of described PCB mainboard, is used for the fixing and described PCB control board of conducting of welding.
Be applied to technique scheme, in the described pcb board, described part copper post welding hole is that complete copper post welding hole cuts remaining copper post welding hole, and it has a cut surface.
Be applied to above-mentioned each technical scheme, in the described pcb board, in the described part copper post welding hole, its axis is positioned at described cut surface.
Be applied to above-mentioned each technical scheme, in the described pcb board, described cut surface is rectangle, trapezoidal or triangle.
Be applied to above-mentioned each technical scheme, in the described pcb board, described cut surface is a zhou duicheng tuxing.
Be applied to above-mentioned each technical scheme, in the described pcb board, described PCB control board be shaped as rectangle, the dual-side at least of described rectangle PCB control board is provided with some described part copper post welding holes.
Be applied to above-mentioned each technical scheme, in the described pcb board, the dual-side of described rectangle PCB control board is symmetrical arranged some described part copper post welding holes.
Be applied to above-mentioned each technical scheme, in the described pcb board, also be provided with power supply changeover device, memory and FPGA on the described PCB control board, described power supply changeover device is used to insert power supply and step-down outputs to described memory and described FPGA, and described memory is used to described FPGA that storage is provided.
Be applied to above-mentioned each technical scheme, a kind of LED display unit wherein, comprises LED lamp plate and above arbitrary described pcb board; Corresponding described PCB control board also is provided with some pads on the described PCB mainboard, and respectively corresponding each described part copper post welding hole is used to be welded to each other fixing.
Be applied to above-mentioned each technical scheme, in the described LED display unit, each described pad is corresponding one by one with each described part copper post welding hole, is welded to each other fixing.
Adopt such scheme, the present invention is by being provided with a PCB mainboard, at least one PCB control board and at least one control module; Described PCB control board is as the carrier of each control module, firmly be connected with each control module, and, utilize the formed copper post of conventional pcb board technology welding hole, and, cut along complete copper post welding hole, be formed on the PCB control board that each side is provided with several portions copper post welding hole, weld by the part copper post welding hole on the PCB control board side, thereby make described PCB control board installation and removal simple and convenient, cost is lower, make each control module fixing firm, do not allow under the flimsy prerequisite, maintenance and replacing are all very simple and convenient, use more flexible.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment 1
As shown in Figure 1, present embodiment provides a kind of pcb board of copper column type welding, described pcb board comprises a PCB mainboard 104, one or more PCB control board 101 and one or more control module 103, wherein, each PCB control board is fixed on the described PCB mainboard, each PCB control board 101 is installed one or more control modules, and each control module is used to control outside LED of all kinds, makes LED of all kinds show various video cartoons.
Wherein, as shown in Figure 2, described PCB control board is provided with some complete copper post welding holes 203, each complete copper post welding hole 203 can form by adopting conventional pcb board manufacture craft, the pin 201 of each described control module 103 is welded on the described PCB control board 101 by described complete copper post welding hole 203, as, be welded on the described PCB control board 101 by scolding tin 202, thereby can very firmly each control module be fixedly mounted on the described PCB control board of its correspondence, each pin 201 can include the positive source pin, power cathode pin and each signal pins, by installing and fixing of each pin, can connect each control module 103 and be connected with signal with electrical connection between the described PCB control board 101.
And, each side of described PCB control board also is provided with several portions copper post welding hole 102, wherein, several portions copper post welding hole 102 can be set at a side of described PCB control board, perhaps, two sides at described PCB control board are provided with several portions copper post welding hole 102 respectively, perhaps, at a plurality of sides of described PCB control board several portions copper post welding hole 102 are set respectively.
Wherein, described part copper post welding hole is connected with the circuit that pre-sets of described PCB mainboard 104, wherein, each default circuit can comprise power circuit and/or signal line, each several part copper post welding hole 102 can be connected with the circuit that pre-sets of described PCB mainboard by scolding tin 204, thereby can connect described PCB control board is connected with signal with electrical connection between the described PCB mainboard, fixing and the described PCB control board 101 of conducting of i.e. welding, make each control module 103 that is provided with on the described PCB control board 101, can make each LED show various video cartoons by the outside LED of all kinds of described PCB mainboard 104 controls.
So, be connected with described PCB control board 101 held stationary by each control module 103, each PCB control board is as the carrier of each control module, need not to change the traditional structure of each control module, can be by the part copper post welding hole 102 and described PCB mainboard 104 welding of described PCB control board side, described PCB control board can be mounted and dismounted easily, keeping in repair and changing each control module, can fast quick-detach and described PCB control board is installed, thus reach very convenient maintenance and change the purpose of each control module, and, each control module 103 is installed firm, be not easy to damage, and cost is lower.
Perhaps, an example is, described part copper post welding hole 102 is cut the remaining copper post welding hole in back for each complete copper post welding hole 203, it has a cut surface, it can be along arbitrary cutting of each complete copper post welding hole 203, perhaps can be understood as, this cut surface is a cylinder and the cross surface mutually on a plane.So, can utilize the formed complete copper post welding hole of the conventional manufacture craft of pcb board, and it is cut, thereby need not additionally to increase other technology, promptly can form the described PCB control board of present embodiment, reaching each control module in firm installation, and, under the prerequisite of installation and removal, technology is simple, reduces cost easily.
Perhaps, strengthen described part copper post welding hole after cutting, promptly described part copper post welding hole is provided with firm welding position, and the PCB control board can firmly be welded with described PCB mainboard, and, be easy to dismounting.
Another example is that in described part copper post welding hole 102, its axis is positioned at described cut surface, promptly when the described complete copper post welding hole 203 of cutting, be that axis along each complete copper post welding hole 203 cuts, so, make the cutting of each complete copper post welding hole 203 have a cutting standard, described PCB control board after the cutting is standardized more, and, adopt the axis cutting, make when scolding tin, the welding contact is also very abundant, the welding standard of comparison.
And, the described cut surface of each several part copper post welding hole is rectangle, trapezoidal or triangle, for example, this cut surface is a cylinder and the cross surface mutually on a plane, cylindrical axis and this plane parallel or be positioned at this plane, and when this planar portions and cylindrical circle were tangent, described cut surface was a rectangle; And for example, this plane and a cylindrical bottom surface circle are tangent, and with circular intersecting of another bottom surface be a string, described cut surface is a triangle; By that analogy, promptly described cut surface can be the shape of various routines, meets the production technology of most of pcb board copper post welding hole.Or described cut surface is a zhou duicheng tuxing, and complete as described copper post welding hole can be circle, and the described cut surface after the cutting is the zhou duicheng tuxing circular arc.
Perhaps, shape that can described PCB control board is set to rectangle, two or more sides of described rectangle PCB control board are provided with some described part copper post welding holes, wherein, can be symmetrical arranged some described part copper post welding holes at the dual-side of described rectangle PCB control board, for example, the described part copper post welding hole of two rows is set respectively on the limit, two opposite sides of described rectangle PCB control board, or, four sides at described rectangle PCB control board are provided with the described part copper post welding hole of two rows respectively, thereby each described part copper post welding hole is evenly distributed, make described PCB control board when being weldingly fixed on described PCB mainboard, when keeping quality balance, make installation firm relatively, and each described part copper post welding hole can be used to connect described PCB control board and be connected with signal with electrical connection between the described PCB mainboard, is connected with signal with electrical connection between each LED thereby connect each control module.
Perhaps, also be provided with power supply changeover device, memory and FPGA (Field-Programmable Gate Array on the described PCB control board, be field programmable gate array), described power supply changeover device is used to insert power supply and step-down outputs to described memory and described FPGA, for example, alternating current is depressurized to 5V, 3.5V, 3V etc., and described memory is used to described FPGA that storage is provided.
Perhaps, described power supply changeover device, described memory and described FPGA can also be arranged on the described PCB mainboard.
Embodiment 2
On the basis of above-mentioned each example, present embodiment provides a kind of LED display unit, and described LED display unit comprises LED lamp plate and the arbitrary described pcb board of above each example.
Wherein, some LED of all kinds are installed on the described LED lamp plate, described LED lamp plate can be used as the LED lamp plate of various LED displays, perhaps, LED lamp plate as various LED lamp decorations, described LED lamp plate is fixed on the described PCB mainboard, and perhaps, described LED lamp plate can also be wholely set with described PCB mainboard.
And, corresponding described PCB control board, on the described PCB mainboard some pads are set also, for example, power supply connection pads and signal connection pads are set, respectively corresponding each the described part copper post welding hole of each pad is used for described PCB control board and described PCB mainboard and is welded to each other fixingly, and the welding on promptly described PCB control board top copper post welding hole and the described PCB mainboard between each circuit is fixed.
Or each described pad is corresponding one by one with each described part copper post welding hole, is welded to each other admittedly, and each pad is provided with power interface and signaling interface, be used for described PCB control board and described PCB mainboard between be electrically connected and be connected with signal.
Perhaps, also be provided with some driver modules on described PCB control board or the described PCB mainboard, as, some constant-current driven modules or constant voltage driving module are set, each driver module is used for driving LED of all kinds under the electric current environment of constant current or constant voltage.
Need to prove that the mutual combination of above-mentioned each technical characterictic forms each embodiment, should be considered as the scope of specification record of the present invention.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of claims of the present invention.