CN114221172A - Plug terminal and ammeter - Google Patents
Plug terminal and ammeter Download PDFInfo
- Publication number
- CN114221172A CN114221172A CN202111579710.0A CN202111579710A CN114221172A CN 114221172 A CN114221172 A CN 114221172A CN 202111579710 A CN202111579710 A CN 202111579710A CN 114221172 A CN114221172 A CN 114221172A
- Authority
- CN
- China
- Prior art keywords
- plug
- flexible arm
- mounting cavity
- side wall
- socket
- 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.)
- Pending
Links
- 230000005611 electricity Effects 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 15
- 230000037431 insertion Effects 0.000 abstract description 15
- 238000009434 installation Methods 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to the technical field of connectors and discloses a plug terminal and an electric meter. The plug terminal comprises a socket and a plug, the socket is provided with an installation cavity, and the inner wall of the installation cavity is provided with a clamping groove; the plug is provided with an insertion part, the side wall of the insertion part is provided with a flexible arm, the outer wall of the flexible arm is provided with a buckle, and an elastic part is arranged between the flexible arm and the side wall of the insertion part; the inserting part is inserted into the mounting cavity to a preset position, and the elastic piece drives the flexible arm to be turned outwards so that the buckle is clamped in the clamping groove. The invention has simple structure and simple disassembly and assembly mode, increases the connection reliability of the plug and the socket and improves the connection quality.
Description
Technical Field
The invention relates to the technical field of connectors, in particular to a plug terminal and an ammeter.
Background
The terminal is an accessory product for realizing electrical connection, and is industrially classified into the category of connectors. The connecting terminal is applied to the connection of wires and mainly comprises a plug-in type connecting terminal, a fence type connecting terminal, a spring type connecting terminal, a track type connecting terminal and the like, wherein the plug-in type connecting terminal is formed by plug-in connection of two parts, one part compresses the wires and then is inserted into the other part, the interfaces of electrical appliances can be connected through the terminals and can be disconnected at any time without welding or winding the wires together, and the connecting terminal is very convenient and fast.
However, in the currently common plug-in type wiring terminal, the plug and the socket are in interference connection, but in the operation or maintenance process, the plug and the socket are easily separated, so that certain safety accidents can be caused, and sometimes, the situation of direct wire pulling exists, so that the circuit is damaged or electric shock accidents and the like can occur. In addition, the plug is very inconvenient to plug and unplug, and the plug is difficult to detach once the socket is connected.
Accordingly, there is a need for a plug terminal and an electricity meter to solve the above problems.
Disclosure of Invention
Based on the above, the invention aims to provide the plug terminal and the electric meter, which are simple in structure and simple in disassembly and assembly mode, and the connection reliability of the plug and the socket is improved, and the connection quality is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, a plug terminal is provided, including:
the socket is provided with an installation cavity, and the inner wall of the installation cavity is provided with a clamping groove;
the plug is provided with an inserting part, a flexible arm is arranged on the side wall of the inserting part, a buckle is arranged on the outer wall of the flexible arm, and an elastic part is arranged between the flexible arm and the side wall of the inserting part;
the inserting part is inserted into the mounting cavity to a preset position, and the elastic piece drives the flexible arm to be turned outwards so that the buckle is clamped in the clamping groove.
As a preferred technical scheme of the plug terminal, the elastic member is a spring piece, the middle part of the spring piece is convexly arranged towards the side wall direction of the insertion part, two ends of the spring piece are fixed on the flexible arms, and the middle part of the spring piece is fixed on the side wall of the insertion part; or
The elastic piece is a spring piece, the middle of the spring piece is arranged in a protruding mode towards the direction of the flexible arm, the middle of the spring piece is fixed to the flexible arm, and two ends of the spring piece are fixed to the side wall of the inserting portion.
As a preferable technical solution of the plug-in terminal, when the insertion part is located at the preset position, the flexible arm part extends out of the mounting cavity.
As a preferable technical scheme of the plug-in terminal, the plug is further provided with a wire guide plate, the plug is located at the preset position, and the wire guide plate is attached to the opening end face of the mounting cavity.
As a preferred technical scheme of the plug terminal, one of the inner wall of the mounting cavity and the side wall of the insertion part is provided with a guide groove, the other is provided with a guide boss, and the guide groove and the guide boss are correspondingly arranged.
As an optimal technical scheme of the plug terminal, the side wall of the buckle close to one side of the bottom of the mounting cavity is in a wedge shape.
As an optimal technical scheme of plug terminal, the inner wall of installation cavity with be provided with the radius angle between the opening terminal surface of installation cavity, when the plug is pegged graft, the radius angle is right the buckle leads.
As a preferred technical scheme of the plug terminal, a contact pin is arranged at the end part of the plugging part, a jack is arranged at the bottom in the installation cavity, and the contact pin can be plugged in the jack.
As a preferred technical scheme of the plug terminal, one side, far away from the socket, of the plug is arranged on the binding post.
In another aspect, an electricity meter is provided, which includes the plug terminal according to any one of the above aspects.
The invention has the beneficial effects that:
the invention provides an ammeter which comprises a plug terminal, wherein the plug terminal comprises a plug and a socket, when the plug is connected with the socket, only a plug-in part of the plug needs to be plugged into an installation cavity, in the plugging process, a flexible arm overcomes the elastic force of an elastic piece to bend inwards under the interference of the inner wall of the installation cavity, and when the plug part is plugged into the installation cavity to a preset position, the elastic force of the elastic piece drives the flexible arm to turn outwards, so that a buckle is clamped in a clamping groove, and the plug and the socket are connected. When the plug is required to be disassembled, the flexible arm is manually driven to overcome the elastic force of the elastic piece and bend inwards, so that the buckle is separated from the clamping groove, then the plug is pulled out, and the separation of the plug and the socket is realized. The invention has simple structure and simple disassembly and assembly mode, increases the connection reliability of the plug and the socket and improves the connection quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and 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 contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a plug terminal according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a socket according to an embodiment of the present invention;
FIG. 3 is a front view of a plug provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a plug provided in accordance with an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an elastic member according to an embodiment of the present invention.
The figures are labeled as follows:
1. a socket; 11. a mounting cavity; 12. a guide groove; 13. a card slot; 14. a jack; 15. rounding off;
2. a plug; 21. a plug-in part; 22. a flexible arm; 221. buckling; 23. an elastic member; 231. a first retaining ring; 232. a second retaining ring; 24. a wire guide plate; 25. a guide boss; 26. inserting a pin; 27. and (4) binding posts.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1 to fig. 3, the present embodiment provides an electricity meter, which includes a plug terminal, where the plug terminal includes a plug 2 and a socket 1, the socket 1 is provided with an installation cavity 11, and an inner wall of the installation cavity 11 is provided with a card slot 13; the plug 2 is provided with a plug part 21, a flexible arm 22 is arranged on the side wall of the plug part 21, a buckle 221 is arranged on the outer wall of the flexible arm 22, and an elastic part 23 is arranged between the flexible arm 22 and the side wall of the plug part 21; the inserting portion 21 is inserted into the mounting cavity 11 to a predetermined position, and the elastic member 23 drives the flexible arm 22 to turn outwards, so that the buckle 221 is clamped in the slot 13.
When the plug 2 is connected with the socket 1, only the plugging portion 21 of the plug 2 needs to be plugged into the mounting cavity 11, in the plugging process, the flexible arm 22 overcomes the elastic force of the elastic piece 23 under the interference of the inner wall of the mounting cavity 11 and bends inwards, and when the plugging portion 21 is plugged into the mounting cavity 11 to a preset position, the elastic piece 23 drives the flexible arm 22 to turn outwards, so that the buckle 221 is clamped into the clamping groove 13, and the connection of the plug 2 and the socket 1 is realized. When the plug 2 needs to be detached, the flexible arm 22 is manually driven to overcome the elastic force of the elastic piece 23 and bend inwards, so that the buckle 221 is separated from the card slot 13, then the plug 2 is pulled out, and the separation of the plug 2 and the socket 1 is realized. This embodiment simple structure, the dismouting mode is simple, and has increased the connection reliability of plug 2 and socket 1, improves connection quality.
Preferably, two flexible arms 22 are symmetrically arranged on two sides of the insertion part 21, so that the connection strength is improved.
Preferably, when the inserting part 21 is located at the preset position, part of the flexible arm 22 extends out of the mounting cavity 11, and the extending flexible arm 22 facilitates the operator to turn the flexible arm 22 inwards, so that the operation convenience is improved.
In order to facilitate the grafting depth of observing plug 2, plug 2 still is provided with wire guide plate 24, and plug 2 is located preset position, and wire guide plate 24 laminates in the opening terminal surface of installation cavity 11, and at this moment, operating personnel can directly perceivedly reachd the grafting state of plug 2, prevents that the grafting depth of plug 2 is too shallow, and the grafting quality is poor to and the grafting depth of preventing plug 2 is too deep, causes plug 2 or socket 1 to damage. Further preferably, the wire guide plate 24 is further provided with a wire guide groove, and the wire harness can be wound in the wire guide groove, so that the wire harness can be conveniently arranged.
Further, as shown in fig. 3 and 5, the elastic member 23 is a spring plate, the middle portion of the spring plate is protruded toward the sidewall of the insertion part 21, two ends of the spring plate are fixed to the flexible arms 22, and the middle portion of the spring plate is fixed to the sidewall of the insertion part 21. On the one hand, the spring leaf can drive flexible arm 22 and outwards turn over a book to make buckle 221 joint in draw-in groove 13, on the other hand, the spring leaf not only has elasticity, still has the pulling force, and plug 2 is when not cartridge, and the outside biggest book angle of turning over of flexible arm 22 can be restricted to elastic component 23, and then prevents that the maloperation from turning over flexible arm 22 outwards and turning over a book angle too big, causes flexible arm 22 fracture, improves plug 2's life. The lateral wall of grafting portion 21 of this embodiment is provided with first solid fixed ring 231, and first solid fixed ring 231 is used for the middle part of fixed elastic component 23, and the inner wall interval of flexible arm 22 is provided with two solid fixed rings 232 of second, and two solid fixed rings are used for the both ends of fixed elastic component 23 respectively. In other embodiments, the elastic member 23 is a spring plate, the middle portion of the spring plate protrudes toward the flexible arm 22, the middle portion of the spring plate is fixed to the flexible arm 22, and both ends of the spring plate are fixed to the sidewalls of the insertion part 21.
Preferably, as shown in fig. 2 and 4, one of the inner wall of the mounting cavity 11 and the side wall of the insertion part 21 is provided with a guide groove 12, and the other is provided with a guide boss 25, and the guide groove 12 is provided corresponding to the guide boss 25. In this embodiment, the inner wall of the mounting cavity 11 is provided with the guide groove 12, the side wall of the insertion part 21 is provided with the guide boss 25, and the guide boss 25 is matched with the guide groove 12, so that the insertion accuracy of the plug 2 is improved. In this embodiment, the installation cavity 11 includes four inner walls, wherein two relative inner walls are provided with guide way 12 respectively, two direction bosss 25 correspond with two guide ways 12 and set up, are provided with draw-in groove 13 respectively on two relative inner walls in addition, and two flexible arms 22 correspond with two draw-in grooves 13 and set up, improve the grafting quality of plug 2.
Preferably, the side wall of the buckle 221 near the bottom of the mounting cavity 11 is wedge-shaped. The wedge-shaped side wall provides the direction for buckle 221 during the grafting, prevents that buckle 221 from producing the opening terminal surface of installation cavity 11 with interfering and leading to unable continuation cartridge.
Further preferably, a fillet 15 is arranged between the inner wall of the mounting cavity 11 and the opening end face of the mounting cavity 11, when the plug 2 is plugged, the fillet 15 guides the buckle 221, and the fillet 15 can reduce the friction loss at the opening part of the mounting cavity 11 and reduce the plugging resistance of the plug 2.
Furthermore, the end of the insertion part 21 is provided with a pin 26, the bottom in the mounting cavity 11 is provided with a jack 14, and the pin 26 can be inserted into the jack 14, so that the plug 2 and the socket 1 are electrically connected. The plug 2 is arranged on a terminal 27 at the side far away from the socket 1, and the terminal 27 is used for connecting an external wiring harness.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A plug terminal, comprising:
the socket comprises a socket (1), wherein the socket (1) is provided with a mounting cavity (11), and the inner wall of the mounting cavity (11) is provided with a clamping groove (13);
the plug (2) is provided with an inserting part (21), a flexible arm (22) is arranged on the side wall of the inserting part (21), a buckle (221) is arranged on the outer wall of the flexible arm (22), and an elastic piece (23) is arranged between the flexible arm (22) and the side wall of the inserting part (21);
the inserting part (21) is inserted into the mounting cavity (11) to a preset position, and the elastic part (23) drives the flexible arm (22) to be turned outwards, so that the buckle (221) is clamped in the clamping groove (13).
2. The plug terminal according to claim 1, wherein the elastic member (23) is a spring plate, the middle of the spring plate is protruded toward the side wall of the plug part (21), two ends of the spring plate are fixed on the flexible arms (22), and the middle of the spring plate is fixed on the side wall of the plug part (21); or
The elastic piece (23) is a spring piece, the middle of the spring piece is arranged in a protruding mode towards the direction of the flexible arm (22), the middle of the spring piece is fixed to the flexible arm (22), and two ends of the spring piece are fixed to the side wall of the inserting part (21).
3. The plug-in terminal according to claim 1, characterized in that when the plug-in part (21) is in the predetermined position, a portion of the flexible arm (22) protrudes out of the mounting cavity (11).
4. The plug terminal according to claim 1, wherein the plug (2) is further provided with a wire guide plate (24), the plug (2) is located at the preset position, and the wire guide plate (24) is attached to the open end face of the mounting cavity (11).
5. The plug terminal according to claim 1, wherein one of the inner wall of the mounting cavity (11) and the side wall of the mating part (21) is provided with a guide groove (12), and the other is provided with a guide projection (25), and the guide groove (12) is provided corresponding to the guide projection (25).
6. The plug terminal according to claim 1, wherein the side wall of the snap (221) on the side close to the bottom of the mounting cavity (11) is wedge-shaped.
7. The plug terminal according to claim 1, wherein a rounded corner (15) is provided between an inner wall of the mounting cavity (11) and an open end face of the mounting cavity (11), and when the plug (2) is plugged, the rounded corner (15) guides the clip (221).
8. The plug-in terminal according to claim 1, characterized in that the end of the plug-in part (21) is provided with a plug pin (26), the bottom in the mounting cavity (11) is provided with a receptacle (14), and the plug pin (26) can be plugged into the receptacle (14).
9. The plug-in terminal according to claim 1, characterized in that the plug (2) is arranged on a terminal (27) on the side facing away from the socket (1).
10. An electricity meter comprising the plug terminal of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111579710.0A CN114221172A (en) | 2021-12-22 | 2021-12-22 | Plug terminal and ammeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111579710.0A CN114221172A (en) | 2021-12-22 | 2021-12-22 | Plug terminal and ammeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114221172A true CN114221172A (en) | 2022-03-22 |
Family
ID=80705008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111579710.0A Pending CN114221172A (en) | 2021-12-22 | 2021-12-22 | Plug terminal and ammeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114221172A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117269570A (en) * | 2023-09-14 | 2023-12-22 | 南京国电南思科技发展股份有限公司 | Electric energy meter with connector structure |
| CN117706150A (en) * | 2024-02-05 | 2024-03-15 | 佳木斯意合科技有限公司 | Plug terminal of ammeter and ammeter comprising same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0512438A2 (en) * | 1991-05-09 | 1992-11-11 | Molex Incorporated | Electrical connector assemblies |
| JPH11185878A (en) * | 1997-12-25 | 1999-07-09 | Matsushita Electric Works Ltd | Lock structure of connector plug |
| CN201533063U (en) * | 2009-09-30 | 2010-07-21 | 中航光电科技股份有限公司 | Plug-in electrical connector |
| CN202633662U (en) * | 2012-04-28 | 2012-12-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile ac charging interface convenient for plugging |
| CN205911484U (en) * | 2016-06-26 | 2017-01-25 | 苏州市吴中区欣鑫开关配件厂 | Connection structure of plug and socket |
| CN206432431U (en) * | 2016-08-31 | 2017-08-22 | 宁波冠泰电子有限公司 | A kind of plug-in type connection terminal |
| CN108448309A (en) * | 2018-04-10 | 2018-08-24 | 徐漫洋 | The pipette tips that charge and charging system |
-
2021
- 2021-12-22 CN CN202111579710.0A patent/CN114221172A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0512438A2 (en) * | 1991-05-09 | 1992-11-11 | Molex Incorporated | Electrical connector assemblies |
| JPH11185878A (en) * | 1997-12-25 | 1999-07-09 | Matsushita Electric Works Ltd | Lock structure of connector plug |
| CN201533063U (en) * | 2009-09-30 | 2010-07-21 | 中航光电科技股份有限公司 | Plug-in electrical connector |
| CN202633662U (en) * | 2012-04-28 | 2012-12-26 | 浙江吉利汽车研究院有限公司杭州分公司 | Automobile ac charging interface convenient for plugging |
| CN205911484U (en) * | 2016-06-26 | 2017-01-25 | 苏州市吴中区欣鑫开关配件厂 | Connection structure of plug and socket |
| CN206432431U (en) * | 2016-08-31 | 2017-08-22 | 宁波冠泰电子有限公司 | A kind of plug-in type connection terminal |
| CN108448309A (en) * | 2018-04-10 | 2018-08-24 | 徐漫洋 | The pipette tips that charge and charging system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117269570A (en) * | 2023-09-14 | 2023-12-22 | 南京国电南思科技发展股份有限公司 | Electric energy meter with connector structure |
| CN117269570B (en) * | 2023-09-14 | 2024-03-22 | 南京国电南思科技发展股份有限公司 | Electric energy meter with connector structure |
| CN117706150A (en) * | 2024-02-05 | 2024-03-15 | 佳木斯意合科技有限公司 | Plug terminal of ammeter and ammeter comprising same |
| CN117706150B (en) * | 2024-02-05 | 2024-04-16 | 佳木斯意合科技有限公司 | Ammeter |
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