CN205430776U - Circuit board combination - Google Patents

Circuit board combination Download PDF

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Publication number
CN205430776U
CN205430776U CN201620061133.4U CN201620061133U CN205430776U CN 205430776 U CN205430776 U CN 205430776U CN 201620061133 U CN201620061133 U CN 201620061133U CN 205430776 U CN205430776 U CN 205430776U
Authority
CN
China
Prior art keywords
circuit board
pad
composition
mainboard
board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620061133.4U
Other languages
Chinese (zh)
Inventor
李健
王强文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Qingneng Photovoltaic Technology Co ltd
Original Assignee
Dongguan Qingneng Photovoltaic Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Qingneng Photovoltaic Technology Co ltd filed Critical Dongguan Qingneng Photovoltaic Technology Co ltd
Priority to CN201620061133.4U priority Critical patent/CN205430776U/en
Application granted granted Critical
Publication of CN205430776U publication Critical patent/CN205430776U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a circuit board connected mode to form and realize the circuit board combination that electrical connection and mechanical connection and reliability are high simultaneously. According to the utility model discloses a circuit board combination includes: the first circuit board is equipped with a plurality of pads on it, second Circuit Board, second Circuit Board is less than in the size the first circuit board, just second Circuit Board's edge is equipped with a plurality of pads. Second Circuit Board with the first circuit board carries out the welding of direct paster through corresponding pad. The utility model discloses a connected mode reliability is high, accords with the reliability requirement of photovoltaic trade, can be used to the photovoltaic terminal box.

Description

Circuit board composition
Technical field
This utility model relates to junction box structure, is more particularly to circuit board composition.
Background technology
Rosette in photovoltaic industry improves along with intelligent level, needs multiple circuit board to combine and realizes function.When photovoltaic junction box comprises two or more (containing two) circuit board, need to carry out the connection of mechanically and electrically aspect.
Traditional connected mode is to be screwed two pieces of circuit boards to realize being mechanically connected, and uses cable to realize electrical connection, and operation is more complicated, relatively costly, poor reliability.
Fig. 1 is the schematic diagram of traditional circuit-board connected mode.As shown in fig. 1, traditional connected mode is to be screwed two pieces of circuit boards to realize being mechanically connected, and uses cable to realize electrical connection.
Making the mode operation being screwed more complicated, need to increase the material such as screw, stud, Material Cost and cost of labor are the highest.Screw is fixed with the risk of loosened screw, reduces the reliability of system.
Use cable to realize electrical connection, need to increase the material such as cable, adapter, add operation, material and the production costs such as wire rod making, adapter installation, cable welding higher.The failure risk of adapter and cable itself can cause the reliability of system to reduce.
Additionally, other circuit board connected mode also includes, connector is used to realize the connection etc. between two pieces of circuit boards.All there is connection reliability in these methods and the life-span is low, and mass production processes is complicated or needs manually to achieve a butt joint etc., it is difficult to meet photovoltaic junction box reliability and life requirements is high, requirement that mass production processes is simple etc..
Accordingly, it would be desirable to a kind of novel circuit board connected mode, thus form the circuit board composition simultaneously realizing being electrically connected and be mechanically connected and reliability is high.
Utility model content
As it has been described above, when photovoltaic junction box comprises two or more (containing two) circuit board, common process is more complicated, and production cost is higher, material variety and relatively costly, system reliability is relatively low.And, photovoltaic industry is the highest to reliability requirement, and with insert row between two traditional circuit boards, the method mounting process of fly line etc is complicated, and reliability is low.
Therefore, the purpose of this utility model is to provide a kind of novel circuit board connected mode, thus forms the circuit board composition simultaneously realizing being electrically connected and be mechanically connected and reliability is high.
This connected mode uses the mode of two circuit board direct paster welding, and production process is simple, reduces production cost, reduces Material Cost, improves system global reliability.
According to first aspect of the present utility model, it is provided that a kind of circuit board composition, including: first circuit board, which is provided with multiple pad;Second circuit board, the edge of described second circuit board is provided with multiple pad.It is overlapping with the surface of described first circuit board that described second circuit board is arranged as at least part of surface, and described second circuit board carries out direct paster welding with described first circuit board by corresponding pad.
Preferably, described first circuit board is mainboard and described second circuit board is module board.
Preferably, described first circuit board and described second circuit board are all printed circuit board (PCB)s.
Preferably, the pad on the edge of described second circuit board is half bore pad, and the respective pad on described first circuit board welded therewith is surface mounting technology pad.It is one or more that described half bore pad on described second circuit board includes with in lower port: power port, signals collecting port, COM1.
Preferably, on described first circuit board and it is respectively welded one or more electronic devices and components on described second circuit board.
Preferably, described circuit board composition has multiple described second circuit board, is welded on described first circuit board.
Preferably, described second circuit board is less than described first circuit board.
According to second aspect of the present utility model, it is provided that a kind of rosette, in described rosette, comprise the circuit board composition as described in first aspect of the present utility model.
Preferably, described rosette is photovoltaic junction box.
Connected mode reliability of the present utility model is high, meets the reliability requirement of photovoltaic industry.
Accompanying drawing explanation
Below with reference to the accompanying drawings this utility model it is described in conjunction with the embodiments.In the accompanying drawings:
Fig. 1 is the schematic diagram of traditional circuit-board connected mode.
Fig. 2 is the schematic diagram according to circuit board composition of the present utility model.
Detailed description of the invention
Specific embodiment of the utility model is explained in detail below in conjunction with accompanying drawing.
Photovoltaic junction box comprises two pieces of circuit boards, and two pieces of circuit boards need to realize being mechanically connected and electrical connection.Two pieces of circuit boards are module board and mainboard respectively, and module board is connected to mainboard by Reflow Soldering.
Fig. 2 is the schematic diagram according to circuit board composition of the present utility model.As in figure 2 it is shown, module board can be printed circuit board (PCB) (PCB).The edge of module board is provided with multiple half bore pad, the network that half bore pad assignment needs and mainboard connects, and such as power port, signals collecting port, COM1 etc., is used for and the electrical connection of mainboard.Meanwhile, multiple half bore pad solder are on mainboard, it is achieved that module board and the firm mechanical connection of mainboard.
Mainboard can also be PCB, is provided with surface mounting technology (SMT) pad corresponding with module board, and module board can mount on mainboard as general components and parts, carry out Reflow Soldering.
Aborning, first module board is carried out Reflow Soldering, all components and parts on welding upper module plate.Module board puts into braid or element tray after machining, as general components and parts together with other components and parts on mainboard by Placement to mainboard, carry out for the second time Reflow Soldering.
The tin cream fusion temperature that the tin cream fusion temperature that module board welding uses is higher than or uses equal to mainboard, when preventing from carrying out mainboard Reflow Soldering, module board tin cream melts, component shift.
As shown in Figure 2, at least two pieces of circuit boards can be contained according to circuit board composition of the present utility model.According to preferred embodiment of the present utility model, first circuit board can be mainboard 1, and second circuit board can be module board 2.As it was previously stated, be all PCB according to preferred embodiment of the present utility model, mainboard 1 and module board 2.
Mainboard 1 is provided with multiple pad.According to preferred embodiment of the present utility model, the multiple pads on mainboard 1 can be SMT pad.
It is overlapping with the surface of mainboard 1 that module board 2 is arranged at least part of surface.Although in fig. 2, mainboard 1 and module board 2 are all shown as rectangle, but according to spirit and scope of the present utility model, two pieces of circuit boards are not limited to rectangular shape, it is also possible to be such as rhombus, circle, hexagon etc..Additionally, in fig. 2, module board 2 as rectangle is both less than mainboard 1 in horizontal and vertical size, i.e. module board 2 is less than mainboard 1, but according to spirit and scope of the present utility model, as long as module board 2 at least one of horizontal and vertical size smaller in dimension than mainboard 1, it is possible to be applicable to this utility model;Even if even module board 2 is more than mainboard 1 on area, it is also possible to be applicable to this utility model.In other words, as long as two plates overlap, it is possible to be applicable to this utility model.The edge of module board 2 is provided with multiple pad.According to preferred embodiment of the present utility model, the pad on the edge of module board 2 is half bore pad.Module board 2 is welded by respective pad with mainboard 1.It is to say, module board 2 is welded with the SMT pad on mainboard 1 by the half bore pad on its edge.In other words, two boards, on lap, is welded by half bore pad and SMT pad respectively.Fig. 2 illustrates that the situation after half bore pad is together with SMT pad solder.Welded by direct paster, it is achieved that module board 2 and the mechanical connection of mainboard 1.
It is one or more that half bore pad on module board 2 includes with in lower port: power port, signals collecting port, COM1.The power supply of module board 2, data, order etc. can be connected by these ports respectively with mainboard 1.Thus, welded by direct paster, be also simultaneously achieved the electrical connection of module board 2 and mainboard 1.
As shown in Figure 2, on mainboard 1 and one or more electronic devices and components 3,4 can be respectively welded on module board 2.As shown in Figure 2, electronic devices and components 3 are welded on mainboard 1, and electronic devices and components 4 are welded on module board 2.
According to another preferred embodiment of the present utility model, circuit board composition of the present utility model can have the circuit board of more than two pieces, such as three pieces or four pieces of circuit boards, wherein, there is multiple second circuit board, the most multiple module boards 2, are respectively adopted structure as above and mode is welded on first circuit board i.e. mainboard 1.
According to circuit board composition of the present utility model, may be used in rosette, particularly in photovoltaic junction box.
Owing to photovoltaic industry is the highest to reliability requirement, in photovoltaic junction box, therefore have employed the mode of two pieces of circuit board direct paster welding, realize being mechanically connected and electrical connection.
In photovoltaic junction box, module board have employed half bore pad, and mainboard has reserved the paster pad of module board.Module board mounts mainboard as general components and parts, carries out Reflow Soldering.
This utility model uses the mode of two pieces of circuit board direct paster welding, realizes being mechanically connected and electrical connection.SMT equipment can be used to carry out automatic welding, and production process is simple, reduces production cost;Need not the materials such as extra screw, cable, adapter, reduce Material Cost;Connected mode is simple, and the introducing with risky material decreased improves system global reliability.
It is described above various embodiment of the present utility model and implements situation.But, spirit and scope of the present utility model are not limited to this.Those skilled in the art can make more application according to teaching of the present utility model, and these application are all within the scope of this utility model.

Claims (9)

1. a circuit board composition, it is characterised in that including:
First circuit board, which is provided with multiple pad;
Second circuit board, the edge of described second circuit board is provided with multiple pad,
Wherein, it is overlapping with the surface of described first circuit board that described second circuit board is arranged as at least part of surface, and described second circuit board carries out direct paster welding with described first circuit board by corresponding pad,
Wherein, the pad on the edge of described second circuit board is half bore pad, and the respective pad on described first circuit board welded therewith is surface mounting technology pad.
2. circuit board composition as claimed in claim 1, it is characterised in that described first circuit board is mainboard and described second circuit board is module board.
3. circuit board composition as claimed in claim 1, it is characterised in that described first circuit board and described second circuit board are all printed circuit board (PCB)s.
4. circuit board composition as claimed in claim 1, it is characterised in that it is one or more that the described half bore pad on described second circuit board includes with in lower port: power port, signals collecting port, COM1.
5. circuit board composition as claimed in claim 1, it is characterised in that on described first circuit board and be respectively welded one or more electronic devices and components on described second circuit board.
6. circuit board composition as claimed in claim 1, it is characterised in that there is in described circuit board composition multiple described second circuit board, be welded on described first circuit board.
7. circuit board composition as claimed in claim 1, it is characterised in that described second circuit board is less than described first circuit board.
8. a rosette, it is characterised in that comprise circuit board composition as claimed in claim 1 in described rosette.
9. rosette as claimed in claim 8, it is characterised in that described rosette is photovoltaic junction box.
CN201620061133.4U 2016-01-21 2016-01-21 Circuit board combination Expired - Fee Related CN205430776U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620061133.4U CN205430776U (en) 2016-01-21 2016-01-21 Circuit board combination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620061133.4U CN205430776U (en) 2016-01-21 2016-01-21 Circuit board combination

Publications (1)

Publication Number Publication Date
CN205430776U true CN205430776U (en) 2016-08-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620061133.4U Expired - Fee Related CN205430776U (en) 2016-01-21 2016-01-21 Circuit board combination

Country Status (1)

Country Link
CN (1) CN205430776U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108227594A (en) * 2018-02-28 2018-06-29 广东美的制冷设备有限公司 A kind of controller and the household electrical appliance with the controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108227594A (en) * 2018-02-28 2018-06-29 广东美的制冷设备有限公司 A kind of controller and the household electrical appliance with the controller

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160803

Termination date: 20190121

CF01 Termination of patent right due to non-payment of annual fee