CN110323594B - Binding post, coil panel and electromagnetic heating cooking device - Google Patents
Binding post, coil panel and electromagnetic heating cooking device Download PDFInfo
- Publication number
- CN110323594B CN110323594B CN201810269466.XA CN201810269466A CN110323594B CN 110323594 B CN110323594 B CN 110323594B CN 201810269466 A CN201810269466 A CN 201810269466A CN 110323594 B CN110323594 B CN 110323594B
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- Prior art keywords
- metal layer
- metal
- crimping
- layer
- terminal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
- H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them
- H05B6/1245—Cooking devices induction cooking plates or the like and devices to be used in combination with them with special coil arrangements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The invention discloses a wiring terminal, a coil panel and an electromagnetic heating cooking device, wherein the wiring terminal comprises a crimping part, a crimping groove for accommodating and crimping the wiring terminal of a connecting wire is formed in the crimping part, the crimping part is arranged in a multi-layer metal layer, the multi-layer metal layer comprises a first metal layer positioned on the inner side and a second metal layer positioned on the outer side, the first metal layer is made of a first metal material, the second metal layer is made of a second metal material, and the conductivity of the first metal material is greater than that of the second metal material. The technical scheme provided by the invention can reduce the contact resistance between the wiring terminal and the wiring terminal, prevent the terminal from generating high temperature in the use process, and ensure the mechanical strength of the wiring terminal after crimping because the second metal layer arranged on the outer side of the wiring terminal has higher mechanical property, thereby solving the problems of permanent deformation or stress relaxation and the like in the use process of the wiring terminal.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a wiring terminal, a coil panel and an electromagnetic heating cooking device.
Background
The connecting terminal component of the existing electromagnetic heating coil panel is generally only provided with a single-layer terminal base material, and the following problems exist in the actual use process: the contact resistance with the connecting wire is higher after binding post crimping, and the terminal can lead to contact resistance bigger with the increase of connecting wire junction temperature during the use, reduces the conversion efficiency of product, and resistance surpasss the rated range and can lead to terminal and enameled wire junction to burn out, influences the life of product.
Disclosure of Invention
The invention mainly aims to provide a wiring terminal, a coil panel and an electromagnetic heating cooking device, which aim to reduce the contact resistance between the wiring terminal and a connecting wire, solve the problem that the wiring terminal is easy to deform after being crimped and improve the stability of the wiring terminal after being crimped.
In order to achieve the above object, the terminal provided by the present invention includes a crimping portion, where a crimping groove for accommodating and crimping a terminal of a connection line is formed, the crimping portion is configured as a plurality of metal layers, and the plurality of metal layers include a first metal layer located on an inner side and a second metal layer located on an outer side, where the first metal layer is made of a first metal material, the second metal layer is made of a second metal material, and a conductivity of the first metal material is greater than a conductivity of the second metal material.
Preferably, the crimping portion further includes a third metal layer, the third metal layer is disposed between the first metal layer and the second metal layer, and the third metal layer is made of a third metal material; the mechanical strength of the first metal material is smaller than that of the second metal material, and the conductivity and the mechanical strength of the third metal material are both between the first metal material and the second metal material.
Preferably, the material of the first metal layer includes any one of copper and silver; and/or the presence of a gas in the gas,
the second metal layer is made of copper-tin alloy; and/or the presence of a gas in the gas,
the third metal layer is made of copper-zinc alloy.
Preferably, the first metal layer and the second metal layer are further provided with a plating layer.
Preferably, the plating layer comprises a first plating layer and a second plating layer, the first plating layer covers the outer surfaces of the first metal layer and the second metal layer, and the second plating layer is arranged on the first plating layer;
the first plating layer is made of tin, and the second plating layer is made of nickel.
Preferably, the thickness of each metal layer is 0.1mm to 1.2 mm.
Preferably, the crimping part includes:
a base plate; and the number of the first and second groups,
two curb plates, certainly the both sides portion side extension of bottom plate, and with the bottom plate encloses jointly and closes and form the crimping groove, just two curb plates are used for being in the crimping groove with relative buckling during the crimping of connecting wire is in order to be fixed in the connecting wire in the crimping inslot.
Preferably, the terminal further includes a connecting portion extending from one end of the crimping portion, the connecting portion being used to connect the terminal to a circuit board.
The invention also provides a coil panel, which comprises a connecting terminal, wherein the connecting terminal comprises a crimping part, a crimping groove for accommodating and crimping the connecting terminal of the connecting wire is formed in the crimping part, the crimping part is arranged in a multi-layer metal layer, the multi-layer metal layer comprises a first metal layer positioned on the inner side and a second metal layer positioned on the outer side, the first metal layer is made of a first metal material, the second metal layer is made of a second metal material, and the conductivity of the first metal material is greater than that of the second metal material.
The invention also provides an electromagnetic heating cooking device, which comprises a coil panel, wherein the coil panel comprises a connecting terminal, the connecting terminal comprises a crimping part, a crimping groove for accommodating and crimping the connecting terminal of the connecting wire is formed in the crimping part, the crimping part is arranged in a multi-layer metal layer, the multi-layer metal layer comprises a first metal layer positioned on the inner side and a second metal layer positioned on the outer side, the first metal layer is made of a first metal material, the second metal layer is made of a second metal material, and the conductivity of the first metal material is greater than that of the second metal material.
According to the technical scheme provided by the invention, the wire pressing part is arranged into a composite structure of two layers of terminal substrates, wherein the first metal layer close to one side of the wiring end of the connecting wire has better conductivity, so that the contact resistance between the wiring terminal and the wiring end can be reduced, the terminal is prevented from generating high temperature in the use process, the conversion efficiency of a product is improved, and the service life of the product is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic sectional view of a terminal provided by the present invention before modification;
fig. 2 is a schematic structural diagram of an embodiment of a connection terminal provided in the present invention;
fig. 3 is a schematic cross-sectional view of the terminal of fig. 2;
FIG. 4 is an enlarged schematic view at A in FIG. 3;
fig. 5 is a schematic cross-sectional view of another embodiment of a terminal provided in accordance with the present invention;
fig. 6 is an enlarged schematic view of fig. 5 at B.
The invention is illustrated by the reference numerals:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Connecting |
13 | |
| 1 | Crimping part | 14 | A |
| 11 | |
15 | |
| 111 | |
16 | |
| 112 | |
2 | Connecting part |
| 12 | A first metal layer |
The invention is illustrated by reference numerals before improvement:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides an electromagnetic heating cooking device, which can be an electromagnetic oven or an electric cooker and the like, and the electromagnetic heating cooking device is taken as an electric cooker for example, the electromagnetic heating cooking device comprises a coil panel, the coil panel comprises a connecting terminal and a connecting wire, the connecting terminal can be used for connecting the connecting wire with a circuit board of the electromagnetic heating cooking device, and can also be used for connecting two connecting wires, and the connecting terminal is taken as an example for connecting the connecting wire with the circuit board. Fig. 2 and 3 show a first embodiment of a terminal according to the invention.
Referring to fig. 2 and fig. 3 in detail, in a first embodiment, the connection terminal 100 includes a crimping portion 1, the crimping portion 1 is formed with a crimping slot for accommodating and crimping a connection terminal of a connection line, the crimping portion 1 is formed in a plurality of metal layers, the plurality of metal layers include a first metal layer 12 located on an inner side and a second metal layer 13 located on an outer side, wherein the first metal layer 12 is made of a first metal material, the second metal layer 13 is made of a second metal material, and a conductive performance of the first metal material is greater than a conductive performance of the second metal material.
Referring to fig. 1, a general connection terminal (including a crimping portion 1 ' and a connecting portion 2 ') includes a single-layer substrate (i.e., a first metal layer 12 ') and a plating layer 11 ' covering the first metal layer 12 ', which has the following problems in practical use: the contact resistance with the connecting wire is higher after binding post crimping, and the terminal can lead to contact resistance bigger with the increase of connecting wire junction temperature during the use, reduces the conversion efficiency of product, and resistance surpasss the rated range and can lead to terminal and enameled wire junction to burn out, influences the life of product.
According to the technical scheme provided by the invention, the wire pressing part is arranged into a composite structure of two layers of terminal base materials, wherein the first metal layer 12 close to one side of the wiring terminal has better conductivity, so that the contact resistance between the wiring terminal 100 and the wiring terminal of the connecting wire can be reduced, the terminal is prevented from generating high temperature in the use process, the conversion efficiency of the product is improved, and the service life of the product is prolonged.
In order to prevent the unstable overall structure caused by the excessive variation of the mechanical properties of the first metal layer 12 and the second metal layer 13, as shown in fig. 4 and 5, in a second embodiment, a transition layer is additionally installed between the first metal layer 12 and the second metal layer 13, specifically, the crimping part 1 further includes a third metal layer 14, the third metal layer 14 is installed between the first metal layer 12 and the second metal layer 13, and the third metal layer 14 is made of a third metal material; the mechanical strength of the first metal material is smaller than that of the second metal material, and the conductivity and the mechanical property of the third metal material are both between the first metal material and the second metal material. Thus, the second metal layer 13 arranged outside the terminal 100 has high mechanical performance, so that the mechanical strength of the terminal 100 after crimping is ensured, the problems of permanent deformation or stress relaxation and the like of the terminal 100 in the use process are solved, and the reliability of the terminal after crimping is improved.
Generally, the mechanical property of the alloy is higher than that of the pure metal, and the electrical conductivity of the pure metal is better than that of the alloy, so that in order to make the electrical conductivity of the first metal material better than that of the second metal material and the third metal material, the mechanical property of the second metal material is better than that of the first metal material and the third metal material, and the material of the first metal layer 12 includes any one of copper and silver; and/or the second metal layer 13 is made of copper-tin alloy; and/or the third metal layer 14 is made of copper-zinc alloy. Of course, in the first embodiment without the third metal layer 14, the second metal layer 13 may be replaced by a copper-zinc alloy, and the material of the first metal layer 12 may be replaced by gold having better conductivity, but the cost of the gold material is too high to be considered in general.
In each embodiment of the present invention, the first metal layer 12 and the second metal layer 13 are further provided with a plating layer 11. The provision of the plating layer 11 can improve the corrosion resistance and wear resistance of the crimping part 1, and provide a good protective effect for each metal layer.
Specifically, the plating layer 11 includes a first plating layer 111 and a second plating layer 112, the first plating layer 111 covers the outer surfaces of the first metal layer 12 and the second metal layer 13, and the second plating layer 112 is disposed on the first plating layer 111; the first plating layer 111 is made of tin, and the second plating layer 112 is made of nickel. It is noted that both tin and nickel have good chemical stability and corrosion resistance, where tin and sulphur hardly react with sulphides and shield against nitriding, whereas nickel has good corrosion resistance against acid and base, but nickel is harder than tin and is therefore suitable for plating on the outermost side for good protection of the structures therein.
More specifically, the thickness of each of the metal layers is 0.1mm to 1.2 mm. It should be noted that if the thickness of the metal layer is too thin, the mechanical properties of the metal layer may be affected, and the metal layer may be broken and deformed during long-term use, and if the thickness of the metal layer is too thick, resources may be wasted, and the manufacturing cost may be increased.
As shown in fig. 6, in each embodiment, the crimping part 1 includes a bottom plate 15 and two side plates 16, the two side plates 16 extend from two side portions of the bottom plate 15 and together with the bottom plate 15 enclose the crimping slot, and the two side plates 16 are used for bending towards each other when the crimping slot is crimped with the connecting wire to fix the terminal of the connecting wire in the crimping slot. When the connecting line is assembled, one end of the connecting line is firstly stretched into the accommodating space between the two side plates 16, and then the upper parts of the two side plates 16 are respectively bent oppositely to compress the connecting line of the connecting line under the action of external force.
When the connection terminal 100 is used for connecting the connection line and the circuit board of the electromagnetic heating cooking device, referring to fig. 6, the connection terminal 100 further includes a connection portion 2 extending from one end of the press-connection portion 1, the connection portion 2 is used for connecting the connection terminal 100 to the circuit board, and the connection manner may be screw fastening or welding.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The connecting terminal is characterized by comprising a crimping part, wherein a crimping groove for accommodating and crimping a connecting terminal of a connecting wire is formed in the crimping part, the crimping part is formed by multiple metal layers, the multiple metal layers comprise a first metal layer located on the inner side and a second metal layer located on the outer side, the first metal layer is made of a first metal material, the second metal layer is made of a second metal material, and the conductivity of the first metal material is greater than that of the second metal material; the crimping part further comprises a third metal layer, the third metal layer is arranged between the first metal layer and the second metal layer, and the third metal layer is made of a third metal material; the mechanical strength of the first metal material is lower than that of the second metal material, and the conductivity and the mechanical strength of the third metal material are both between the first metal material and the second metal material; the material of the first metal layer comprises any one of copper and silver; the second metal layer is made of copper-tin alloy; the third metal layer is made of copper-zinc alloy.
2. The terminal of claim 1, wherein the first metal layer and the second metal layer are further provided with a plating layer thereon.
3. The terminal of claim 2, wherein the plating layer comprises a first plating layer and a second plating layer, the first plating layer is coated on the outer surfaces of the first metal layer and the second metal layer, and the second plating layer is disposed on the first plating layer;
the first plating layer is made of tin, and the second plating layer is made of nickel.
4. The connection terminal of claim 1, wherein each of the metal layers has a thickness of 0.1mm to 1.2 mm.
5. The connection terminal according to claim 1, wherein the crimping portion includes:
a base plate; and the number of the first and second groups,
two curb plates, certainly the both sides portion side extension of bottom plate, and with the bottom plate encloses jointly and closes and form the crimping groove, just two curb plates are used for being in the crimping groove with relative buckling during the crimping of connecting wire is in order to be fixed in the connecting wire in the crimping inslot.
6. The terminal of claim 1, further comprising a connecting portion extending from one end of the crimp portion, the connecting portion configured to connect the terminal to a circuit board.
7. A coil panel, characterized by comprising the connection terminal as claimed in any one of claims 1 to 6.
8. An electromagnetic heating cooking device comprising the coil disk according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269466.XA CN110323594B (en) | 2018-03-28 | 2018-03-28 | Binding post, coil panel and electromagnetic heating cooking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269466.XA CN110323594B (en) | 2018-03-28 | 2018-03-28 | Binding post, coil panel and electromagnetic heating cooking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110323594A CN110323594A (en) | 2019-10-11 |
| CN110323594B true CN110323594B (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810269466.XA Active CN110323594B (en) | 2018-03-28 | 2018-03-28 | Binding post, coil panel and electromagnetic heating cooking device |
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| Country | Link |
|---|---|
| CN (1) | CN110323594B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7123514B2 (en) * | 2020-06-17 | 2022-08-23 | 矢崎総業株式会社 | conductive structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067609A (en) * | 2016-05-16 | 2016-11-02 | 中山市正壹电气有限公司 | A kind of patchboard terminal |
| CN207069080U (en) * | 2017-06-05 | 2018-03-02 | 吉林省中赢高科技有限公司 | A kind of joint of copper tip and aluminum conductor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2243722Y (en) * | 1995-09-20 | 1996-12-25 | 陈卫东 | Copper or aluminum pipe transition wire connector |
| CN202940346U (en) * | 2012-11-28 | 2013-05-15 | 陈东 | Copper and aluminum wire connection terminal |
| CN208001013U (en) * | 2018-02-13 | 2018-10-23 | 长春捷翼汽车零部件有限公司 | A kind of connector of copper tip and aluminum conductor |
-
2018
- 2018-03-28 CN CN201810269466.XA patent/CN110323594B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067609A (en) * | 2016-05-16 | 2016-11-02 | 中山市正壹电气有限公司 | A kind of patchboard terminal |
| CN207069080U (en) * | 2017-06-05 | 2018-03-02 | 吉林省中赢高科技有限公司 | A kind of joint of copper tip and aluminum conductor |
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| Publication number | Publication date |
|---|---|
| CN110323594A (en) | 2019-10-11 |
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