CN203909110U - Electric energy meter and function terminal thereof - Google Patents

Electric energy meter and function terminal thereof Download PDF

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Publication number
CN203909110U
CN203909110U CN201420285866.7U CN201420285866U CN203909110U CN 203909110 U CN203909110 U CN 203909110U CN 201420285866 U CN201420285866 U CN 201420285866U CN 203909110 U CN203909110 U CN 203909110U
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CN
China
Prior art keywords
terminal
circuit board
printed circuit
main
function
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.)
Active
Application number
CN201420285866.7U
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Chinese (zh)
Inventor
乔战威
肖正
沈旗
李翡
刘志宏
谭赣江
姜延战
张鹏
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.)
State Grid Corp of China SGCC
Xuji Group Co Ltd
Henan Xuji Instrument Co Ltd
Original Assignee
State Grid Corp of China SGCC
Xuji Group Co Ltd
Henan Xuji Instrument Co Ltd
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Publication date
Application filed by State Grid Corp of China SGCC, Xuji Group Co Ltd, Henan Xuji Instrument Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201420285866.7U priority Critical patent/CN203909110U/en
Application granted granted Critical
Publication of CN203909110U publication Critical patent/CN203909110U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an electric energy meter and a function terminal thereof. An insertion needle which is inserted into an insertion hole in a contact on a printed circuit board and is welded on the contact is vertically arranged on a body matching face of the function terminal. The insertion needle is located on an inner connection end and is fixedly or integrally arranged on a body. When the electric energy meter is assembled, after the function terminal is assembled in a terminal slot on a terminal seat, the insertion needle of the function terminal is located on the inner connection end of the body, and can be in corresponding insertion matching with the insertion hole on the printed circuit board. After the insertion hole on the printed circuit board is assembled on the insertion needle on the function terminal in an insertion manner and is welded, the printed circuit board is directly connected with the terminal seat through the function terminal. A process needed by the connection of the printed circuit board and the terminal seat is simplified. The assembly efficiency of the electric energy meter is improved.

Description

A kind of electric energy meter and function terminal thereof
Technical field
The utility model relates to electric energy meter mounting technology field, relates in particular to a kind of electric energy meter and function terminal thereof.
Background technology
At present, along with the widespread use of electric energy meter, the function of electric energy meter is also more and more, from strength to strength, existing electric energy meter as shown in Figures 1 to 4, comprise in the table terminal base 101 of position, the end and the printed circuit board 104 in watchcase, on terminal base 101, be fixed with function terminal 103, function terminal 103 is connected by old-fashioned cord 102 conductions with printed circuit board 104, so that the contact on printed circuit board 104 causes on function terminal 103 by cord 102.One end that cord 102 is connected with the contact of printed circuit board 104 is provided with the joint 1021 of the needle-like for being inserted into welding hole reserved on printed circuit board 104, and joint 1021 inserts welding after welding hole and realizes being electrically connected of cord 102 and printed circuit board 104 contacts; The other end of cord 102 connects wired nose 1023 by heat-shrink tube 1022, simultaneously the battery core of cord 102 separates and passes heat-shrink tube 1022 and weld on online nose 1023 from insulation sleeve, line nose 1023 is connected electrically in by screw on the terminals of function terminal 103, to realize being electrically connected of cord 102 and function terminal 103.Function terminal 103 is block metalwork, its two ends be respectively equipped be connected with line nose 1023 screws in connect end 1031 threaded holes and the web member that is connected by screw is fixed on external connection end 1032 threaded holes on terminal base 101.In the time carrying out the connection of printed circuit board 104 and terminal base 101, first copper bar is cut into needed geomery, then boring, tapping and make function terminal 103, wire is cut into needed length, line skin is removed at two ends again, then tin sticky and form cord 102, got up in one end of cord 102 and line nose 1023 use tin weldings, and near solder joint, overlap heat-shrink tube 1022, the other end and again welding circuit board, when assembling, being screwed line nose 1023 is connected function terminal 103 with circuit board, therefore function terminal 103 is in carrying out, when outer end wiring, all need to be connected by screw realization, and along with function terminal 103 quantity required on electric energy meter are more and more, the assembling mode that is connected printed circuit board 104 and terminal base 101 by this function terminal 103 with flexible circuit conductor will be many because of its duplication of labour, the shortcomings such as manual working is many will cause the efficiency of assembling of whole electric energy meter low, and the hand assembled that cord 102 connects on end 1031 threaded holes in the contact of printed circuit board 104 and function terminal 103 will make whole electric energy meter assembly precision reduce, also making to assemble required human cost increases, the competitiveness of product in market declines.
Utility model content
The purpose of this utility model is to provide a kind of function terminal that improves electric energy meter efficiency of assembling, also relates to the electric energy meter that uses this function terminal simultaneously.
In order to realize above object, in the utility model, the technical scheme of function terminal is as follows:
Function terminal, comprise the block main body of the terminal groove position for being assemblied in terminal base, main body for exposing from the notch of terminal groove position and being mating surface with the notch of terminal groove position towards identical side, in main body, have respectively in the relative both sides of mating surface for being fixed on the external connection end on terminal base by web member and connecing end in being electrically connected with printed circuit board, on described mating surface, erect and be useful in the jack that is inserted into printed circuit board upper contact place and be welded on the contact pin on contact, contact pin is held and is fixed or be wholely set in main body in interior connecing.
Contact pin is fixed in main body by welded structure.
Contact pin is copper pin.
In the utility model, the technical scheme of electric energy meter is as follows:
Electric energy meter, comprise terminal base, function terminal and printed circuit board, on printed circuit board, be provided with in contact place the jack being electrically connected with function terminal, terminal base is provided with the terminal groove position packing into for function terminal, function terminal comprises the block main body in the terminal groove position that is assemblied in terminal base, the notch from terminal groove position of main body exposes and is mating surface with the notch of terminal groove position towards identical side, in main body in the relative both sides of mating surface be respectively the external connection end being fixed on by web member on terminal base and be electrically connected with printed circuit board in connect end, on described mating surface, erect and be inserted in described jack and be welded on the contact pin on contact, contact pin is held and is fixed or be wholely set in main body in interior connecing.
Terminal groove position has two above and is intervally arranged, and is all equipped with described function terminal in all terminal grooves position.
On terminal groove position, in main body, connecing the location of turning in being provided with at end notch place, residing one end turns edge, location turns edge block on mating surface, and the turn edge side of mating surface dorsad, location is another lateral plates supporting plane concordant with terminal base that side plate face for being supported on printed circuit board makes printed circuit board.
In the utility model, on the main body mating surface of function terminal, erect in the jack that is inserted into printed circuit board upper contact place and be welded on the contact pin on contact, contact pin is held and is fixed or be wholely set in main body in interior connecing, in the time carrying out the assembling of electric energy meter, function terminal is being assemblied in behind the terminal groove position on terminal base, the contact pin of function terminal will connect end in main body, and can coordinate by sleeve corresponding to the jack on printed circuit board, like this after the contact pin welding that the jack sleeve on printed circuit board are assemblied on function terminal, printed circuit board will directly be connected on terminal base by function connecting terminals, between middle printed circuit board and function terminal, also need compared to existing technology the structure connecting with cord, thisly directly realize by contact pin the scheme that printed circuit board is connected with function terminal and will save the wiring operation of cord, line nose is connected operation etc. with the screw of function terminal, thereby simplify printed circuit board and be connected required technique with terminal base, improve the efficiency of assembling of electric energy meter.
Brief description of the drawings
Fig. 1 is the structural representation of electric energy meter in prior art;
Fig. 2 is the structural representation of cord in Fig. 1;
Fig. 3 is the structural representation of function terminal in Fig. 1;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structural representation of the embodiment of electric energy meter of the present utility model;
Fig. 6 is the assembly structure schematic diagram of function terminal on terminal base in Fig. 5;
Fig. 7 is the structural representation of function terminal in Fig. 6.
Embodiment
The embodiment of electric energy meter in the utility model: as shown in Figures 5 to 7, this electric energy meter comprises terminal base 201, function terminal 202 and printed circuit board 203, and printed circuit board 203 is directly connected on terminal base 201 by function terminal 202.The front side of printed circuit board 203 is provided with jack in contact place, and on the end face of terminal base 201, is provided with the notch corresponding with jack terminal groove position upward in rearward position place, and terminal groove position and jack are intervally arranged at left and right directions respectively.In each terminal groove position, be equipped with identical function terminal 202, the block main body 2021 of extending before and after function terminal 202 comprises, the profile of this main body 2021 is consistent with the profile of function terminal 202 in prior art, the upper side of main body 2021 is the planar mating surface of level 2022, in main body 2021 in the both sides, front and back of mating surface 2022 have respectively the external connection end 2023 being fixed on by web member in terminal groove position and be electrically connected with printed circuit board 203 in connect end 2024, and offer in external connection end 2023 places the threaded hole being connected with web member screw on mating surface 2022, erect in interior end 2024 places that connect the contact pin 2026 being welded in main body 2021, contact pin 2026 is copper pins, and contact pin 2026 can insert in the jack of the contact place of printed circuit board 203 rear sides offering and be welded on contact, and being electrically connected of practical function terminal 202 and printed circuit board 203.
Terminal groove position be divided into the water jacket section at external connection end 2023 places of main body 2021 and main body 2021 in connect the inside groove section at end 2024 places.External connection end 2023 fixed sturctures that the main body 2021 of function terminal 202 forms by threaded hole are fixed in water jacket section by web member.The notch place of inside groove section is provided with from two side channels and turns edge along the location of turnover in opposite directions, location turns edge block above mating surface 2022, to stop printed circuit board 203 directly to contact with function terminal 202, and the opposite side medium position place turning edge in two location is provided with the recess of dodging of avoiding contact pin 2026, two dodge the opposing depression of recess; The end face that turns edge of location is the upper face supporting plane concordant with the end face of terminal base 201 that the lower face that is supported on printed circuit board 203 makes printed circuit board 203.
In the time carrying out the connection of printed circuit board 203 and terminal base 201 in this electric energy meter, can implement as follows:
Step 1, in the main body 2021 of function terminal 202 by crimping in the mode fixing plug pin 2026 of high pressure spot welding, and all assemble described function terminal 202 in each terminal groove position on terminal base 201;
Step 2, by the jack at all contacts place corresponding with function terminal 202 terminal groove of living in position on printed circuit board 203 one to one sleeve be assemblied on the contact pin 2026 of function terminal 202;
Step 3, each contact pin 2026 is welded on the contact of printed circuit board 203 by automatic tin welding machine.
In the present embodiment, electric energy meter is compared with electric energy meter in prior art, first by terminal base 201 and the amendment of table bottom die, the upper face of the upper plane of terminal base 201 and printed circuit board 203, in same level, is ensured in printed circuit board 203 installation processes and table end keeping parallelism; Next has revised printed circuit board 203, printed circuit board 203 is extended to the top of terminal base 201, and its installation that can not affect table cover fastens, and printed circuit board 203 is stayed to welding hole (being jack) in contact pin 2026 corresponding positions of function terminal 202; Be exactly finally the structure of modify feature terminal 202 and the connection scheme problem that solves function terminal 202 and contact pin 2026, realize being connected between copper pin and function terminal 202 by the technique of high pressure spot welding.At the assembling stage that becomes table, automatic tin welding machine welds with high efficiency, and solder joint is evenly without solder skip, wrong weldering phenomenon, perfectly solved original weldering cord, bonding wire nose then with screw by wire and the extremely low problem of function terminal 202 joint efficiencies.
In the present embodiment, the use of function terminal 202 has the following advantages: improved production efficiency raising, because bond pad locations is fixed, and the device of welding there will not be random swing in operating process, so can realize automated production, when significantly enhancing productivity, solder skip, the inhomogeneous problem of solder joint are avoided; Improve connection reliability, stopped in lead-in wire scheme, in spot welding wire process, the wire core hidden danger of quality that cannot find that rupture, soldering copper post obviously improves than welding wire quality; Mistake proofing improves, and in printed board, jack is corresponding one by one with contact pin 2026 on function terminal 202, stop to occur in bonding wire scheme wire bonding instead, weld wrong situation; Withstand voltage properties improves, thinner contact pin 2026 make adjacent two function terminals 202 in the creepage distance that connects between the contact point structure of end on 2024 increase, stopped the inadequate problem of creepage distance between lead-in wire scheme center line nose; The reduction of cost, reduced the use amount of copper flexible cord, copper cash nose, reduced the operation of section copper cash, bonding wire nose, reduced the screw that crimping is used, and reduced line ball nose operation.
In the above-described embodiments, contact pin is welded on the mating surface of main body, in other embodiments, the modes such as contact pin also can be threaded connection, riveted joint, bolt connection are fixed in main body, or contact pin is directly wholely set in main body, contact pin and main body adopt integrated mode to process.
In the above-described embodiments, in all terminal grooves position, all assemble identical function terminal, in other embodiments, the function terminal assembling in each terminal groove position also can be different, be in part terminal groove position, to assemble the function terminal described in above-described embodiment, and in all the other terminal groove positions, assemble function terminal in prior art, although this kind of assembling mode can not be removed the application of cord in electric energy meter completely, be relatively applicable to printed circuit board local for extending to the situation on terminal base.
The embodiment of function terminal in the utility model: in the present embodiment, the structure of function terminal is identical with the structure of function terminal in above-described embodiment, therefore repeats no more.

Claims (6)

1. function terminal, comprise the block main body of the terminal groove position for being assemblied in terminal base, main body for exposing from the notch of terminal groove position and being mating surface with the notch of terminal groove position towards identical side, in main body, have respectively in the relative both sides of mating surface for being fixed on the external connection end on terminal base by web member and connecing end in being electrically connected with printed circuit board, it is characterized in that, on described mating surface, erect and be useful in the jack that is inserted into printed circuit board upper contact place and be welded on the contact pin on contact, contact pin is held and is fixed or be wholely set in main body in interior connecing.
2. function terminal according to claim 1, is characterized in that, contact pin is fixed in main body by welded structure.
3. function terminal according to claim 1, is characterized in that, contact pin is copper pin.
4. electric energy meter, comprise terminal base, function terminal and printed circuit board, on printed circuit board, be provided with in contact place the jack being electrically connected with function terminal, terminal base is provided with the terminal groove position packing into for function terminal, function terminal comprises the block main body in the terminal groove position that is assemblied in terminal base, the notch from terminal groove position of main body exposes and is mating surface with the notch of terminal groove position towards identical side, in main body in the relative both sides of mating surface be respectively the external connection end being fixed on by web member on terminal base and be electrically connected with printed circuit board in connect end, it is characterized in that, on described mating surface, erect and be inserted in described jack and be welded on the contact pin on contact, contact pin is held and is fixed or be wholely set in main body in interior connecing.
5. electric energy meter according to claim 4, is characterized in that, terminal groove position has two above and is intervally arranged, and is all equipped with described function terminal in all terminal grooves position.
6. according to the electric energy meter described in claim 4 or 5, it is characterized in that, on terminal groove position, in main body, connecing the location of turning in being provided with at end notch place, residing one end turns edge, location turns edge block on mating surface, and the turn edge side of mating surface dorsad, location is another lateral plates supporting plane concordant with terminal base that side plate face for being supported on printed circuit board makes printed circuit board.
CN201420285866.7U 2014-05-30 2014-05-30 Electric energy meter and function terminal thereof Active CN203909110U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420285866.7U CN203909110U (en) 2014-05-30 2014-05-30 Electric energy meter and function terminal thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420285866.7U CN203909110U (en) 2014-05-30 2014-05-30 Electric energy meter and function terminal thereof

Publications (1)

Publication Number Publication Date
CN203909110U true CN203909110U (en) 2014-10-29

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ID=51783372

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420285866.7U Active CN203909110U (en) 2014-05-30 2014-05-30 Electric energy meter and function terminal thereof

Country Status (1)

Country Link
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034930A (en) * 2014-05-30 2014-09-10 国家电网公司 Connection method of printed circuit board and terminal base, functional terminals and electric energy meter
CN104882682A (en) * 2015-05-06 2015-09-02 上海康威特吉能源技术有限公司 Lock soldering terminal and method for connecting PCB with cable
CN106876623A (en) * 2017-01-22 2017-06-20 河南许继仪表有限公司 A kind of replaceable electric energy meter of battery and electric energy meter bottom

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104034930A (en) * 2014-05-30 2014-09-10 国家电网公司 Connection method of printed circuit board and terminal base, functional terminals and electric energy meter
CN104882682A (en) * 2015-05-06 2015-09-02 上海康威特吉能源技术有限公司 Lock soldering terminal and method for connecting PCB with cable
CN106876623A (en) * 2017-01-22 2017-06-20 河南许继仪表有限公司 A kind of replaceable electric energy meter of battery and electric energy meter bottom
CN106876623B (en) * 2017-01-22 2019-08-23 河南许继仪表有限公司 A kind of electric energy meter that battery is replaceable and electric energy meter bottom

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