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CN-224231841-U - Wiring structure and terminal box of electric energy meter

CN224231841UCN 224231841 UCN224231841 UCN 224231841UCN-224231841-U

Abstract

The application relates to the technical field of electric energy meters, in particular to a wiring structure and a wiring box of an electric energy meter, wherein the wiring structure comprises a wiring lug, a wiring frame and bolts, the wiring frame is a frame body with inner holes, the inner holes of the wiring frame penetrate through two opposite surfaces of the wiring frame, the end parts of the wiring lug are embedded in the inner holes of the wiring frame, fixing holes communicated with the inner cavities of the wiring frame are formed in the surfaces of the wiring frame, the bolts are connected in the fixing holes in a threaded mode, and the wiring lug is used for being electrically connected with a lead. According to the application, the wiring lug and the wiring frame are designed in a split manner, so that the processing is quick, the waste is less, and the production cost is reduced.

Inventors

  • GAO XIAOYONG
  • GAO HUAIYU

Assignees

  • 乐清市长佳仪器仪表有限公司

Dates

Publication Date
20260512
Application Date
20250427

Claims (10)

  1. 1. The wiring structure of the electric energy meter is characterized by comprising a wiring lug (2), a wiring frame (3) and bolts (5), wherein the wiring frame (3) is a frame body with inner holes, the inner holes of the wiring frame (3) penetrate through two surfaces of the wiring frame (3) which are opposite, the end parts of the wiring lug (2) are embedded in the inner holes of the wiring frame (3), fixing holes (31) communicated with the inner cavities of the wiring frame (3) are formed in the surface of the wiring frame (3), the bolts (5) are in threaded connection with the fixing holes (31), and the wiring lug (2) is used for being electrically connected with wires.
  2. 2. The wiring structure of an electric energy meter according to claim 1, wherein the wiring tab (2) includes a body portion (21) and an insertion portion (22) for inserting into an inner hole of the wiring frame (3), and a width dimension of the insertion portion (22) is smaller than a width dimension of the body portion (21).
  3. 3. The wiring structure of an electric energy meter according to claim 2, wherein guide inclined surfaces (211) are formed on both opposite back side walls of the end portion of the body portion (21) close to the insertion portion (22), and the distance between the guide inclined surfaces (211) decreases in the direction in which the insertion portion (22) is inserted into the inner hole of the wiring frame (3).
  4. 4. The connection structure of an electric energy meter according to claim 2, wherein the insertion portion (22) is provided with a plurality of anti-slip grooves (221), and each anti-slip groove (221) is arranged along the direction that the connection piece (2) is inserted into the inner hole of the connection frame (3).
  5. 5. The connection structure of an electric energy meter according to claim 2, wherein the connection piece (2) further comprises a welding end (24), the welding end (24) being located on an end of the body portion (21) remote from the insertion portion (22), the welding end (24) being for welding with a wire.
  6. 6. The wiring structure of the electric energy meter according to claim 1, further comprising a meter calibrating sheet (7), wherein a through hole (71) is formed in the meter calibrating sheet (7), and the through hole (71) is used for allowing a bolt (5) to pass through.
  7. 7. A junction box characterized by comprising a junction box main body (9) and the junction structure according to claim 1 mounted on the junction box main body (9).
  8. 8. The junction box according to claim 7, wherein the junction box main body (9) is provided with a mounting hole (1) in a penetrating manner, the junction box main body (9) is also provided with a containing groove (4) communicated with the mounting hole (1), the extending direction of the containing groove (4) is perpendicular to the extending direction of the mounting hole (1), the mounting hole (1) is used for inserting a wiring lug (2), and the containing groove (4) is used for inserting a wiring frame (3).
  9. 9. The junction box according to claim 8, wherein the cross-sectional dimension of the junction box (3) is not smaller than the groove depth of the accommodation groove (4).
  10. 10. The junction box according to claim 8, wherein the junction box main body (9) is further provided with a limiting groove (6), the limiting groove (6) is formed in the opening surface of the accommodating groove (4), the limiting groove (6) is communicated with the mounting hole (1) and the accommodating groove (4), and the groove width of the limiting groove (6) is smaller than that of the accommodating groove (4).

Description

Wiring structure and terminal box of electric energy meter Technical Field The application relates to the field of electric energy meters, in particular to a wiring structure and a wiring box of an electric energy meter. Background The electric energy meter is an instrument for measuring the electric energy consumption in a circuit, and is widely applied to occasions requiring high-power supply, such as industry, business, large-scale houses and the like. The electric energy meter comprises a wiring structure, and the wiring structure is used for supplying power to a detection element in the electric energy meter. In the prior art, referring to fig. 1, a mounting hole 1 is formed in a junction box of an electric energy meter, and a wiring structure of the electric energy meter comprises a wiring terminal 8 and a bolt 5, wherein the wiring terminal 8 is fixedly mounted in the mounting hole 1. The connecting terminal 8 is provided with two connecting holes 81 and one connecting hole 82. Both of the two wiring holes 81 are used for connecting wires, and the two wiring holes 81 include a first wiring hole 811 and a second wiring hole 812. The first wire hole 811 is formed through an end portion of the wire terminal 8, extends in the thickness direction of the wire terminal 8, and has an internal thread on a wall of the first wire hole 811. The second wiring hole 812 is formed in the end wall of the other end of the wiring terminal 8, and extends along the length direction of the wiring terminal 8. In order to meet the size requirement of the second wiring hole 812, the wiring terminal 8 needs to be wide enough. The connecting hole 82 is communicated with the second wiring hole 812, an internal thread is arranged on the wall of the connecting hole 82, and the connecting hole 82 is used for the bolt 5 to pass through so as to fix the lead wire extending into the second wiring hole 812 on the wiring terminal 8. However, in order to meet the actual wiring requirement, the depth of the first wiring hole 811 should not be too large, and therefore, the end portion of the wiring terminal 8 where the first wiring hole 811 is formed needs to be milled with a notch 83, so that the depth of the first wiring hole 811 is reduced. Based on the above structure, the actual processing flow of the wiring terminal 8 comprises pre-punching the blank, then milling the blank to form the notch 83, three drilling holes and two tapping holes, so that the processing cost is high, and especially the milling processing also needs to be matched with a corresponding tool, and the efficiency is low. Disclosure of utility model In order to reduce the processing cost of a wiring structure, the application provides a wiring structure and a wiring box of an electric energy meter. The application provides a wiring structure and a wiring box of an electric energy meter, which adopt the following technical scheme: The utility model provides a wiring structure of electric energy meter, includes lug, wire frame and bolt, the wire frame is the framework that has the hole, just the hole of wire frame runs through two surfaces that the wire frame is on the back mutually, the tip of lug inlays and establishes in the hole of wire frame, the fixed orifices with the inner chamber intercommunication of wire frame have been seted up on the surface of wire frame, bolt threaded connection is in the fixed orifices, the lug is used for being connected with the wire electricity. Through adopting above-mentioned technical scheme, through design of lug and wire frame components of a whole that can function independently, the lug can set up thinner, save processing material, simplified traditional integral type binding post's complex structure, the lug only need through one step punching press and drilling tapping can process the completion, the processing step of milling the breach has been reduced, processing is fast, and the waste material is few, manufacturing cost has been reduced, the wire frame only need through drawing can realize, processing is fast, with low costs, lug and wire frame realize quick installation through embedded interference fit, promote the reliability of electric connection. Optionally, the terminal includes a body portion and an insertion portion for inserting into an inner hole of the terminal frame, and a width dimension of the insertion portion is smaller than a width dimension of the body portion. Through adopting above-mentioned technical scheme, divide into wider body portion and narrower insert portion with the lug, the body portion provides bigger area of contact in order to ensure conductive properties, and narrow insert portion then is convenient for accurately insert the hole of wire frame, reduces the installation resistance, promotes the operation convenience, can reduce the width size of wire frame moreover, saves processing material. Optionally, guide inclined planes are formed on two opposite back side walls of the end part