CN201344944Y - Conical connecting terminal of watt-hour meter - Google Patents
Conical connecting terminal of watt-hour meter Download PDFInfo
- Publication number
- CN201344944Y CN201344944Y CNU2008201702976U CN200820170297U CN201344944Y CN 201344944 Y CN201344944 Y CN 201344944Y CN U2008201702976 U CNU2008201702976 U CN U2008201702976U CN 200820170297 U CN200820170297 U CN 200820170297U CN 201344944 Y CN201344944 Y CN 201344944Y
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- China
- Prior art keywords
- terminal
- connecting terminal
- electric energy
- energy meter
- copper
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Abstract
The utility model discloses a conical connecting terminal of a watt-hour meter. The connecting terminal is arranged on the watt-hour meter and comprises a current connecting terminal and a voltage connecting terminal; a copper terminal hole is formed on the current connecting terminal, a copper terminal hole is also formed on the voltage connecting terminal, the copper terminal holes are the cylindrical holes, an upper screw and a lower screw are embedded in the current connecting terminal, the upper screw and the lower screw respectively and vertically penetrate the copper terminal hole, the upper screw and the lower screw are embedded in the voltage connecting terminal, the upper screw and the lower screw vertically penetrate the copper terminal holes, and a cone with a certain slope degree is respectively arranged on one side of each copper terminal hole. The conical connecting terminal of the watt-hour meter has the advantages of large contact surface, small contact resistance and reliable and safe electrical connection and is applicable to inspection/test of high-current watt-hour meters.
Description
Technical field
The utility model relates to a kind of conical connecting terminal of electric energy meter.
Background technology
Widely used electric energy meter in electric system, the form of the connection terminal of its electric current, voltage generally adopts the aperture to meet the cylindrical, copper terminal that relevant regulations requires, embed two screws on each terminal, be used for connecting electric current, voltage circuit and the circuit-under-test of electric energy meter.When electric energy meter calibration/test,, electric energy meter and electric energy meter calibrating apparatus are electrically connected by the crimping mode.As shown in Figure 1, traditional electric energy meter splicing ear 2 " on be embedded with screwing 3 " and following screw 4 "; at first with connection box of electric energy meter terminal 2 " in following screw 4 " be screwed to the end; again by electric energy meter calibrating apparatus upper spring compression joint type table holder 11 " on copper post 12 " go up the top; with the following screw 4 of conical connecting terminal of electric energy meter " threaded rod be connected, carry out calibrating/test again.But because table holder copper post 12 " with play screw 4 " threaded rod between electric contact area too small, in actual use, the one, loose contact sometimes, contact point resistance increase and generating heat causes electric energy meter to burn out or the electric energy meter calibrating apparatus damage; The 2nd, can not satisfy big electric current calibrating/test request, generally can only below 30A, examine and determine/test.
The utility model content
The utility model relates to a kind of conical connecting terminal of electric energy meter, purpose is to change the structure of conical connecting terminal of electric energy meter, the way of contact between employing face and the face, make that to be electrically connected surface of contact big, contact resistance reduces, realization is electrically connected reliably, safety, satisfies advantages such as big electric current calibrating/test.
In order to achieve the above object, the technical solution of the utility model is:
A kind of conical connecting terminal of electric energy meter is provided with connection terminal on electric energy meter 1, this connection terminal comprises current terminal and voltage terminal; Offer the copper tip hole on current terminal, also offer the copper tip hole on voltage terminal, the copper tip hole is cylindrical hole, be embedded with screwing and following screw on current terminal, screwing and the vertical respectively copper tip hole that penetrates of following screw, be embedded with screwing and following screw on voltage terminal, screwing and the also vertical copper tip hole that penetrates of following screw, a side in copper tip hole is arranged to have the cone of certain inclined-plane degree.
Described inclined-plane degree adopts 13-20 °.
Described current terminal is provided with 2-6.
Described voltage terminal is provided with 1-5.
After adopting said structure, good result of the present utility model has: the one, and effective contact area increases, and reduces contact resistance, improves electric energy meter calibrating apparatus and electric connection reliability of electric energy meter and security; The 2nd, satisfy big electric current calibrating/detection requirement, maximum current can reach more than the 80A, contacts internal heat generation temperature rise in 10 minutes and is not more than 40 ℃; The 3rd, play guide effect in installing at the scene.
Description of drawings
Fig. 1 is a traditional structure crimping synoptic diagram;
Fig. 2 is the front view of external structure of the present utility model;
Fig. 3 is the upward view of external structure of the present utility model;
Fig. 4 is the A-A cut-open view of the utility model Fig. 3;
Fig. 5 is the B-B cut-open view of the utility model Fig. 3;
Fig. 6 is the utility model electric energy meter electric current cylindrical, copper terminal crimping synoptic diagram;
Fig. 7 is the utility model electric energy meter voltage cylindrical, copper terminal crimping synoptic diagram.
Embodiment
The conical connecting terminal of electric energy meter of present embodiment to shown in Figure 5, is provided with connection terminal as Fig. 2 on electric energy meter 11, this connection terminal comprises current terminal 112 and voltage terminal 116; Offer copper tip hole 119 on current terminal 112, offer copper tip hole 115 on voltage terminal 116, copper tip hole 119 and copper tip hole 115 are cylindrical hole, be embedded with screwing 113 and following screw 114 on current terminal 112, screwing 113 and the vertical respectively copper tip hole 119 that penetrates of following screw 114, be embedded with screwing 117 on voltage terminal 116, following screw 118, screwing 117, following screw 118 vertically penetrates copper tip hole 115, one side in copper tip hole 119 is arranged to the cone 1110 of 15 ° of inclined-plane degree, and a side in copper tip hole 115 is arranged to the cone 1118 of 15 ° of inclined-plane degree.
When electric energy meter calibration/test, extremely shown in Figure 7 as Fig. 4, the cone 123 of the copper post 121 in the spring compression joint type table holder 12 of the cone 1110 on its current terminal 112 and electric energy meter calibrating apparatus contacts, form to cooperate after the contacting between cone face and the cone face and be electrically connected, the cone 123 ' of the copper post 121 ' in the spring compression joint type table holder 12 ' of the cone 1118 on voltage terminal 116 and electric energy meter calibrating apparatus contacts, form to cooperate after the contacting between cone face and the cone face and be electrically connected, contacting between cone face and the cone face, increased the contact of face, the reliability and the security that are electrically connected have been improved, be fit to the calibrating/test of all size electric energy meter, particularly can satisfy the calibrating that large-current electric can be shown.
Conical connecting terminal of electric energy meter described in the utility model can be applicable to single, the three-phase electric energy meter of all size.When adopting single-phase electric energy meter, current terminal is 2, and voltage terminal is 1; When adopting three-phase three-wire electric energy meter, current terminal is 4, and voltage terminal is 3; When adopting the three-phase and four-line electric energy meter, current terminal is 6, and voltage terminal is 5.As long as, all should list the protection domain of this case in so used electric current, voltage terminal of this kind structure.
Claims (4)
1, a kind of conical connecting terminal of electric energy meter is provided with connection terminal on electric energy meter (11), it is characterized in that: this connection terminal comprises current terminal (112) and voltage terminal (116); Offer copper tip hole (119) on current terminal (112), offer copper tip hole (115) on voltage terminal (116), copper tip hole (119) and copper tip hole (115) are cylindrical hole, be embedded with screwing (113) and following screw (114) on current terminal (112), screwing (113) and the vertical respectively copper tip hole (119) that penetrates of following screw (114), be embedded with screwing (117) on voltage terminal (116), following screw (118), screwing (117), following screw (118) vertically penetrates copper tip hole (115), one side in copper tip hole (119) is arranged to have the cone (1110) of certain inclined-plane degree, and a side of copper tip hole (115) is arranged to have the cone (1118) of certain inclined-plane degree.
2, conical connecting terminal of electric energy meter as claimed in claim 1 is characterized in that: described inclined-plane degree adopts 13-20 °.
3, conical connecting terminal of electric energy meter as claimed in claim 1 is characterized in that: described current terminal (112) is provided with 2-6.
4, conical connecting terminal of electric energy meter as claimed in claim 1 is characterized in that: described voltage terminal (116) is provided with 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201702976U CN201344944Y (en) | 2008-12-18 | 2008-12-18 | Conical connecting terminal of watt-hour meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201702976U CN201344944Y (en) | 2008-12-18 | 2008-12-18 | Conical connecting terminal of watt-hour meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201344944Y true CN201344944Y (en) | 2009-11-11 |
Family
ID=41276526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201702976U Expired - Lifetime CN201344944Y (en) | 2008-12-18 | 2008-12-18 | Conical connecting terminal of watt-hour meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201344944Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808995A (en) * | 2012-11-09 | 2014-05-21 | 镇江宏联电工有限公司（中外合资） | Current terminal fixation structure of ammeter end button |
| CN104051098A (en) * | 2013-05-03 | 2014-09-17 | 襄阳市三三电气有限公司 | Piezoresistor lightning arrester with tapered contact surface |
| CN104051096A (en) * | 2013-05-03 | 2014-09-17 | 湖北文理学院 | Piezoresistor combination block |
-
2008
- 2008-12-18 CN CNU2008201702976U patent/CN201344944Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808995A (en) * | 2012-11-09 | 2014-05-21 | 镇江宏联电工有限公司（中外合资） | Current terminal fixation structure of ammeter end button |
| CN104051098A (en) * | 2013-05-03 | 2014-09-17 | 襄阳市三三电气有限公司 | Piezoresistor lightning arrester with tapered contact surface |
| CN104051096A (en) * | 2013-05-03 | 2014-09-17 | 湖北文理学院 | Piezoresistor combination block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091111 |