CN219957657U - Terminal button connection structure and electric power instrument thereof - Google Patents
Terminal button connection structure and electric power instrument thereof Download PDFInfo
- Publication number
- CN219957657U CN219957657U CN202321006149.1U CN202321006149U CN219957657U CN 219957657 U CN219957657 U CN 219957657U CN 202321006149 U CN202321006149 U CN 202321006149U CN 219957657 U CN219957657 U CN 219957657U
- Authority
- CN
- China
- Prior art keywords
- terminal button
- connecting piece
- positioning
- connection structure
- terminal
- 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
Links
- 238000005476 soldering Methods 0.000 claims abstract description 17
- 230000004907 flux Effects 0.000 claims abstract description 9
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 19
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 12
- 229910052709 silver Inorganic materials 0.000 claims description 12
- 239000004332 silver Substances 0.000 claims description 12
- 210000001503 joint Anatomy 0.000 claims description 11
- 238000003466 welding Methods 0.000 abstract description 12
- 229910000679 solder Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 229910000896 Manganin Inorganic materials 0.000 description 1
- QCEUXSAXTBNJGO-UHFFFAOYSA-N [Ag].[Sn] Chemical compound [Ag].[Sn] QCEUXSAXTBNJGO-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004093 laser heating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The utility model relates to a terminal button connecting structure and an electric instrument thereof, wherein the terminal button connecting structure comprises a terminal button, a device connecting piece and a connecting part connected between the terminal button and the device connecting piece, one axial end of the terminal button is provided with a butting part for butting the device connecting piece, and the other axial end of the terminal button is provided with a wiring hole for external electric connection; the device connecting piece is provided with a positioning connecting part which is used for being in plug-in fit with the butting part; the connecting part is enclosed and surrounds the abutting part and the positioning connecting part, the terminal button and the device connecting piece are tightly connected together, and the connecting part is formed by solidifying soldering paste containing soldering flux on the abutting part and the positioning connecting part. By the arrangement, the welding performance can be improved, and the connection resistance between the terminal button and the device connecting piece can be reduced better.
Description
Technical Field
The utility model relates to a terminal button connecting structure used in instruments and meters, in particular to a terminal button connecting structure and an electric meter thereof, which are applicable to the field of electric energy transmission.
Background
Transformers or shunts are widely used in the field of electronic and automation control, such as communication systems, measurement or metering components. Therefore, the connection structure between the transformer or shunt and the terminal button has a wide market worldwide, and the annual sales of the product is over five billion dollars worldwide according to incomplete statistics.
In the prior art, the most common wiring mode of the wiring terminal button connection means comprises a plurality of types, one type of wiring terminal button connection means is characterized in that one end of the wiring terminal button is provided with a step, the step is provided with a screw hole, a primary current wire sleeved with a transformer is directly fixed on the step by a screw, the structure needs the flat and tight contact of a step plane and a contact surface of the primary current wire, the screw is required to be screwed in place, the contact resistance is ensured to be smaller, the mass production consistency is poor, the contact resistance of the connection structure is between 40 and 60 microohms through detection, the self power consumption is high, and the electric power energy is wasted. The other is electrically connected with each other through a riveting process, for example, the technical schemes described in Chinese patent application Nos. 201210152376.5 and 20141036819.8, however, a certain gap is always present at the connection position, the risk of oxygen is neglected in the air, and the contact resistance is affected after heat expansion and cold contraction during long-term working. For example, the technical scheme disclosed in patent No. 201921390728.4 adds a soldering lug or a soldering ring, and further improves the defects of the technical scheme by a process of riveting after welding, but before welding, a certain production time difference exists from the time of welding the element to be welded to the time of welding, and the time difference is very likely to be oxidized or polluted, so that the welding performance is affected.
Therefore, how to optimize the electrical connection between the transformer or shunt and the terminal block is a matter of urgent need to be studied and solved by those skilled in the art.
Disclosure of Invention
The utility model aims to provide a terminal button connection structure for improving welding performance and an electric instrument thereof.
In order to achieve the technical purpose, the utility model adopts the following technical modes: the utility model provides a wiring terminal button connection structure, includes wiring terminal button, device connecting piece and connects the connecting portion between wiring terminal button and device connecting piece, the axial one end of wiring terminal button is equipped with the butt joint portion that is used for the butt joint device connecting piece, the axial other end of wiring terminal button is equipped with the wiring hole that supplies outside electric connection; the device connecting piece is provided with a positioning connecting part which is used for being in plug-in fit with the butting part; the connecting part is enclosed and surrounds the abutting part and the positioning connecting part, the terminal button and the device connecting piece are tightly connected together, and the connecting part is formed by solidifying soldering paste containing soldering flux on the abutting part and the positioning connecting part.
As a further improvement of the present utility model, the tin paste is a silver-containing tin paste.
As a further improvement of the present utility model, the silver element content of the connecting portion is 1% to 30%.
As a further improvement of the present utility model, the abutting portion on the terminal button is convex, and the positioning connection portion on the device connection member is hole-shaped.
As a further improvement of the utility model, the terminal button comprises a columnar main body part, the butt joint part is a positioning rivet joint which axially protrudes from the main body part, a hole-shaped positioning connecting part on the device connecting piece is riveted with the positioning rivet joint, and the connecting part is connected between the terminal button main body part and the device connecting piece.
As a further improvement of the utility model, the terminal button comprises a columnar main body part and a protruding part which axially extends in a stepped shape from the main body part, the abutting part is a positioning rivet joint which protrudes laterally from the protruding part, a hole-shaped positioning connecting part on the device connecting piece is riveted with the positioning rivet joint, and the connecting part is connected between the terminal button main body part and the device connecting piece.
As a further improvement of the utility model, the device connection element is perpendicular to the terminal button or the device connection element extends in the same direction as the terminal button.
As a further development of the utility model, the device connection is a primary current line or a shunt.
As a further improvement of the utility model, the terminal button is laterally provided with a fastening screw hole.
In order to achieve the technical purpose, the utility model can also adopt the following technical modes:
the utility model provides an electric power instrument, includes the instrument shell, be equipped with metering device, measurement display device in the instrument shell to and foretell terminal button connection structure.
Compared with the prior art, the connecting part is enclosed and surrounds the circumference of the abutting part and the positioning connecting part, the terminal button and the device connecting piece are tightly connected together, and the connecting part is formed by solidifying soldering paste containing soldering flux on the circumference of the abutting part and the positioning connecting part. By the arrangement, the welding performance can be improved, and the connection resistance between the terminal button and the device connecting piece can be reduced.
Drawings
Fig. 1 is a schematic structural view of a terminal button connection structure according to a first embodiment of the present utility model;
fig. 2 is a schematic view of the structure of fig. 1 at another angle.
Fig. 3 is a schematic view of the structure of a terminal button according to a first embodiment of the present utility model;
fig. 4 is a schematic view showing the structure of the terminal button and the device connector before connection according to the first embodiment of the present utility model;
fig. 5 is a schematic view of the termination button and device connector of fig. 4 after connection is completed.
Fig. 6 is a schematic view of the structure of the terminal button and the device connector before connection according to the second embodiment of the present utility model;
fig. 7 is a schematic view showing the structure of the terminal button and the device connector after connection according to the second embodiment of the present utility model;
FIG. 8 is an axial cross-sectional view of FIG. 7;
reference numerals:
terminal connection structure 100, 100 'terminal 1, 1'
Wire hole 11 fastening screw hole 12
The butt-joint parts 13, 13 'are main parts 10, 10'
Positioning rivet heads 102, 102 'protruding part 101'
Connector 2, 2 'device connector 3, 3'
Positioning the joints 31, 31 'tin paste/silver-containing tin paste 20, 20'
Detailed Description
Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.
Techniques and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Fig. 1 to 8 are schematic views of terminal button connection structures 100, 100' according to the present utility model. Taking the first embodiment as an example, a terminal button connection structure 100 includes a terminal button 1, a device connection member 3, and a connection portion 2 connected between the terminal button 1 and the device connection member 3, wherein one axial end of the terminal button 1 is provided with a docking portion 13 for docking the device connection member 3, and the other axial end of the terminal button 1 is provided with the terminal button 1 for external electrical connection; the device connecting piece 3 is provided with a positioning connecting part 31 which is used for being in plug-in fit with the butting part 13; the connecting part 2 is enclosed and surrounds the abutting part 13 and the positioning connecting part 31 in a circle, and tightly connects the terminal button 1 with the device connecting piece 3, and the connecting part 2 is formed by solidifying soldering paste 20 containing soldering flux in the abutting part 13 and the positioning connecting part 31 in a circle. The tin paste 20 is paste liquid tin metal containing soldering flux, which can also be called as tin paste, and the terminal button connecting structure 100 adopts the tin paste 20 (tin paste) or the silver-containing tin paste 20 (tin paste) as a connecting medium, wherein the tin paste 20 or the silver-containing tin paste 20 contains soldering flux, and the soldering flux can be used for removing oxides on the surfaces of solder and a welded base material, so that the metal surface reaches necessary cleanliness, and the surface reoxidation during welding is prevented, the surface tension of the solder is reduced, and the welding performance is improved. Specifically, the solder paste 20 can be coated in the welded range of the terminal button 1 or the device connecting piece 3 by a dispensing machine or a coating machine, the welded terminal button 1 and the device connecting piece 3 are assembled, the terminal button 1 and the device connecting piece 3 are riveted by pressing, the solder paste 20 is uniformly spread and stuck between two contact surfaces of the terminal button 1 and the device connecting piece 3, and finally the solder paste 20 can be melted by adopting methods such as high-frequency heating, laser heating, hot air heating, reflow soldering equipment heating and the like, so that seamless connection between the terminal button 1 and the device connecting piece 3 is achieved. By such arrangement, the welding performance can be improved.
As a preferred embodiment of the present utility model, the tin paste 20 may be a silver-containing tin paste 20, i.e., a tin paste 20 containing elemental silver. By adopting the silver-containing tin paste 20 as a welding medium, the resistance can be reduced, and the electric connection with zero resistance can be basically realized between the terminal button 1 and the device connecting piece 3.
On the basis of the above preferred mode, the content of elemental silver in the connecting portion 2 is 1% to 30%. By the arrangement, the resistance can be reduced better, and the manufacturing cost is controlled better.
The abutting portion 13 of the terminal button 1 is convex, and the positioning connection portion 31 of the device connector 3 is hole-shaped. So set up, protruding butt joint portion 13 and hole form location are realized riveting after the location of pegging graft each other with hole form location connection portion 31, and tin thick liquid 20 or contain silver tin thick liquid 20 are in protruding butt joint portion 13 and hole form location connection portion 31's grafting structure periphery can be better laminating tiling, improve the compactness of being connected between terminal button 1 or the device connecting piece 3.
Referring to fig. 1 to 5, in the first embodiment of the present utility model, the terminal 1 includes a cylindrical main body 10, the abutting portion 13 is a positioning rivet 102 axially protruding from the main body 10, the hole-shaped positioning connection portion 31 on the device connector 3 is riveted with the positioning rivet 102, and the connection portion 2 is connected between the main body 10 of the terminal 1 and the device connector 3. The wiring terminal 1 and the device connecting piece 3 are arranged vertically, so that the requirement of corresponding distribution structures between corresponding sensors or current splitters and the wiring terminal 1 can be met.
Referring to fig. 6 to 8, in the second embodiment of the present utility model, the terminal button connection structure 100 'includes a cylindrical main body 10' and a protruding portion 101 'extending from the main body 10' in a stepped shape in the axial direction, the abutting portion 13 'is a positioning rivet 102' protruding laterally from the protruding portion 101', the hole-shaped positioning connection portion 31' on the device connection member 3 'is riveted with the positioning rivet 102', and the connection portion 2 'is connected between the main body 10' of the terminal button 1 'and the device connection member 3', and is formed by solidifying solder paste 20 'containing soldering flux or silver-containing solder paste 20'. So arranged, the device connector 3' and the terminal button 1' extend in the same direction, which can meet the requirement of corresponding distribution structure between the corresponding sensor or shunt and the terminal button 1 '.
The device connection 3 is a primary current line or shunt. So set up, the transformer (not shown) can cup joint in the primary current line outside, perhaps device connecting piece 3 itself is connected with manganin resistance body (not shown) etc. so, the device connector can help realizing the sampling demand to the electric current.
The terminal button 1 is laterally provided with a fastening screw hole 12. The terminal button 1 can be fixed on the electric power instrument shell or the corresponding structure through the fastening screw hole 12, so that stable fixing is realized, and electric power safety accidents caused by shaking are avoided.
The utility model also provides an electric power meter (not shown), which comprises a meter housing (not shown), wherein a metering device (not shown), a metering display device (not shown) and the terminal button connecting structure 100 are arranged in the meter housing. The inside wiring terminal button connection structure 100 that is equipped with of electric power instrument, it is firm to connect, and can reduce the resistance value, improves the holistic safety in utilization of electric power instrument better, reduces the holistic power consumption of electric power instrument.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above-described embodiment uses a series of directional terms such as front, rear, left, right, up, down, etc. for each technical feature, and is used only for convenience in description and understanding of each technical feature, and in actual use of the technical scheme, no limitation is made to a specific direction.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A wiring terminal button connection structure, its characterized in that: the device comprises a terminal button, a device connecting piece and a connecting part connected between the terminal button and the device connecting piece, wherein one axial end of the terminal button is provided with a butt joint part for butt joint of the device connecting piece, and the other axial end of the terminal button is provided with a wiring hole for external electric connection; the device connecting piece is provided with a positioning connecting part which is used for being in plug-in fit with the butting part; the connecting part is enclosed and surrounds the abutting part and the positioning connecting part, the terminal button and the device connecting piece are tightly connected together, and the connecting part is formed by solidifying soldering paste containing soldering flux on the abutting part and the positioning connecting part.
2. A terminal button connection structure according to claim 1, wherein: the tin paste is silver-containing tin paste.
3. A terminal button connection structure according to claim 2, wherein: the silver element content of the connecting part is 1-30%.
4. A terminal button connection structure according to claim 1, wherein: the butt joint part on the terminal button is in a convex shape, and the positioning connection part on the device connecting piece is in a hole shape.
5. The terminal button connection structure according to claim 4, wherein: the terminal button comprises a columnar main body part, the butt joint part is a positioning rivet joint protruding from the axial direction of the main body part, a hole-shaped positioning connecting part on the device connecting piece is riveted with the positioning rivet joint, and the connecting part is connected between the terminal button main body part and the device connecting piece.
6. The terminal button connection structure according to claim 4, wherein: the terminal button comprises a columnar main body part and a protruding part which axially extends in a step shape from the main body part, the butt joint part is a positioning rivet joint which laterally protrudes from the protruding part, a hole-shaped positioning connecting part on the device connecting piece is riveted with the positioning rivet joint, and the connecting part is connected between the terminal button main body part and the device connecting piece.
7. A terminal button connection structure according to claim 1, wherein: the device connection member is perpendicular to the terminal button or the device connection member extends in the same direction as the terminal button.
8. A terminal button connection structure according to claim 1, wherein: the device connection is a primary current line or shunt.
9. A terminal button connection structure according to claim 1, wherein: and the terminal button is laterally provided with a fastening screw hole.
10. An electrical power meter, characterized by: comprising a meter housing in which a metering device, a metering display device, and a terminal button connection structure according to any one of claims 1 to 9 are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321006149.1U CN219957657U (en) | 2023-04-28 | 2023-04-28 | Terminal button connection structure and electric power instrument thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321006149.1U CN219957657U (en) | 2023-04-28 | 2023-04-28 | Terminal button connection structure and electric power instrument thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219957657U true CN219957657U (en) | 2023-11-03 |
Family
ID=88540066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321006149.1U Active CN219957657U (en) | 2023-04-28 | 2023-04-28 | Terminal button connection structure and electric power instrument thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219957657U (en) |
-
2023
- 2023-04-28 CN CN202321006149.1U patent/CN219957657U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10147524B2 (en) | Resistor and method for making same | |
| US9700951B2 (en) | Heater sensor complex with high thermal capacity | |
| WO2021203691A1 (en) | Copper bar assembly, battery module. and copper bar assembly connection method | |
| US6676440B1 (en) | Coin type electric element and printed circuit board with a coin type electric element | |
| US20150226768A1 (en) | Resistor for detecting current | |
| KR20180127496A (en) | Soldering tip for soldering iron | |
| CN103094719B (en) | The attachment structure of device and ramp | |
| CN219957657U (en) | Terminal button connection structure and electric power instrument thereof | |
| US20070132541A1 (en) | Thermistor device and method for manufacturing the same | |
| CN217114700U (en) | Utmost point ear welded structure and electron atomizing device host computer | |
| CN204997203U (en) | Improvement of hot press bonding tool | |
| CN104134872B (en) | Battery monitoring assembly having battery monitor module and cable for connection to a shunt of the module | |
| CN212085118U (en) | Copper bar assembly and battery module | |
| CN208028219U (en) | Self-brazing connecting terminal in succession | |
| CN220690994U (en) | Connecting component of connecting end and terminal button of electric force sensor | |
| JPH0963658A (en) | Connection structure of lead wire | |
| CN112305295A (en) | Composite current sensor | |
| CN210326160U (en) | Connection structure of connection terminal button and device link | |
| JPH0498773A (en) | Superconducting cable connection section | |
| JP3175404U (en) | Connector mounting structure on circuit board | |
| CN102299027A (en) | Welding product, welding method and breaker | |
| TWM253946U (en) | Connector and circuit board assembly using the same | |
| CN210778922U (en) | Cavity coupler structure | |
| CN209880905U (en) | Power socket with welding-free structure for connecting electronic element | |
| CN219606271U (en) | Composite catheter assembly and liquid reservoir |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |