CN212676068U - Residual current transformer binding post with locking location structure - Google Patents
Residual current transformer binding post with locking location structure Download PDFInfo
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- CN212676068U CN212676068U CN202021848896.6U CN202021848896U CN212676068U CN 212676068 U CN212676068 U CN 212676068U CN 202021848896 U CN202021848896 U CN 202021848896U CN 212676068 U CN212676068 U CN 212676068U
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- ring edge
- assembly
- positioning ring
- loosening
- residual current
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Abstract
The utility model provides a residual current transformer binding post with anti-loosening positioning structure, which comprises an assembly substrate, a guide connection component, a positioning ring edge and an anti-loosening lug, wherein the guide connection component is fixed on the assembly substrate, the circuit of the transformer is communicated with the guide connection component, the positioning ring edge extends along the circumference of the assembly substrate and protrudes towards the outer side of the assembly substrate, the shape of the positioning ring edge is matched with that of an assembly slot in a transformer shell, the positioning ring edge is inserted into the assembly slot to fix the assembly substrate in the transformer shell, the anti-loosening lug is positioned on the positioning ring edge and protrudes towards the outer side of the positioning ring edge, after the positioning ring edge is inserted into the assembly slot, the anti-loosening lug supports against the inner wall of the assembly slot to avoid the positioning ring edge from loosening from the assembly slot, and the anti-loosening lugs are arranged in pairs, the outer side surface of each anti-, the locking lug can play a guiding role when being clamped into the assembling slot, so that the assembling pin quantity is favorably improved, and the product quality is improved.
Description
Technical Field
The utility model relates to a circuit device especially relates to a residual current transformer binding post with locking location structure.
Background
In the low voltage distribution circuit, if the sum of phase current vectors of each phase is not zero, the situation that residual current exists in the circuit is shown, and the residual current transformer is used for detecting the residual current in the circuit in time and avoiding danger caused by electric leakage. Residual current transformer's binding post generally adopts grafting structure to install in the shell of mutual-inductor, occupies in order to reduce the space, generally can make binding post thinner, however, can cause binding post not hard up like this, influences the quality of mutual-inductor. Therefore, there is a need for a terminal block of this type which is structurally optimized to overcome the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a residual current transformer binding post with locking location structure to guarantee binding post's installation stability.
The utility model discloses a solve the technical scheme that its technical problem adopted and be:
the utility model provides a residual current transformer binding post with locking location structure, includes:
assembling a substrate;
the conductive assembly is fixed on the assembly substrate, and a circuit of the mutual inductor is communicated with the conductive assembly;
the positioning ring edge extends along the circumferential direction of the assembly substrate, protrudes towards the outer side of the assembly substrate, is matched with the assembly slot in the mutual inductor shell in shape, and is inserted into the assembly slot so that the assembly substrate is fixed in the mutual inductor shell;
the locking lug, this locking lug is located the holding ring edge to the outside protrusion in holding ring limit, after the holding ring limit inserted the assembly slot, locking lug supported tight assembly slot inner wall, avoided the holding ring limit to take off from the assembly slot.
In one embodiment of the present invention, the locking protrusions are provided with a pair of locking protrusions, the outer side surface of each locking protrusion is provided with a guiding inclined plane, and the included angle between the guiding inclined plane and the positioning ring edge is an obtuse angle; the guide inclined plane inclines inwards from the outer side surface of the anti-loosening lug, the guide effect can be achieved when the anti-loosening lug is clamped into the assembling slot, and the anti-loosening lugs are arranged in pairs, so that the direction does not need to be distinguished during assembling.
In an embodiment of the present invention, the locking protrusion is located on the bottom wall of the positioning ring edge and protrudes below the positioning ring edge. In other embodiments, the anti-loose bump can also be positioned on the top wall, the side wall and the like of the positioning ring edge.
In one embodiment of the present invention, the thickness of the positioning ring edge is smaller than the thickness of the fitting base plate; the step shape formed between the positioning ring edge and the assembly substrate can play a role in guiding the insertion process.
In an embodiment of the present invention, the assembling substrate, the positioning ring edge and the anti-loosening bump are integrally formed by using an insulating material, so that the structure is more stable.
In addition, the anti-loosening projections arranged in pairs can be positioned on any side of the positioning ring edge, in one embodiment, the positioning ring edge is rectangular, two long sides of the positioning ring edge are used as splicing edges, and at the moment, the anti-loosening projections arranged in pairs are positioned on the two long sides of the positioning ring edge.
The utility model has the advantages that:
this binding post sets up the retaining ring limit at assembly substrate's edge, with the assembly slot adaptation with the mutual-inductor casing, make binding post fixed in the mutual-inductor casing, set up locking lug simultaneously on the retaining ring edge, further strengthen its cooperation with the mutual-inductor casing, avoid the retaining ring limit to take off from the assembly slot, and locking lug sets up in pairs, the guide inclined plane has been seted up to the lateral surface of each locking lug, the guide inclined plane inclines to the inboard from locking lug's lateral surface, can play the guide effect when locking lug card goes into the assembly slot, locking lug does not need to distinguish the direction when setting up in pairs and can making the assembly, be favorable to improving the assembly pin volume, promote product quality.
Drawings
Fig. 1 is a schematic structural view of a connection terminal provided by the present invention;
fig. 2 is a schematic structural view of an assembly slot in a transformer housing.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.
As fig. 1, fig. 2 shows, the utility model provides a residual current transformer binding post with locking location structure includes assembly substrate 1, lead and connect subassembly 2, retaining ring limit 3 and locking lug 4, it is fixed in on the assembly substrate to lead to connect the subassembly, the circuit of mutual-inductor with lead and connect the subassembly intercommunication, the circumference of retaining ring border assembly substrate extends, and protrusion outside to the assembly substrate, assembly slot B adaptation in its shape and the mutual-inductor casing A, the retaining ring limit inserts in the assembly slot, make the assembly substrate fixed in the mutual-inductor casing, locking lug is located the retaining ring edge, and to the protrusion outside the retaining ring limit, after the retaining ring limit inserts the assembly slot, locking lug supports tight assembly slot inner wall, avoid the retaining ring limit to take off from the assembly slot pine. In the embodiment, a pair of anti-loosening lugs is arranged, the outer side surface of each anti-loosening lug is provided with a guide inclined surface 5, and the included angle between each guide inclined surface and the edge of the positioning ring is an obtuse angle; the guide inclined plane inclines inwards from the outer side surface of the anti-loosening lug, the guide effect can be achieved when the anti-loosening lug is clamped into the assembling slot, and the anti-loosening lugs are arranged in pairs, so that the direction does not need to be distinguished during assembling. In this embodiment, the anti-loosening bump is located on the bottom wall of the positioning ring edge and protrudes below the positioning ring edge. In other embodiments, the anti-loose bump can also be positioned on the top wall, the side wall and the like of the positioning ring edge. In this embodiment, the thickness of the positioning ring edge is smaller than that of the mounting base plate; the step shape formed between the positioning ring edge and the assembly substrate can play a role in guiding the insertion process. The assembly substrate, the positioning ring edge and the anti-loosening lug are integrally formed by adopting an insulating material, so that the structure is more stable. In addition, the locking lugs arranged in pairs can be positioned on any side of the positioning ring edge, in the embodiment, the positioning ring edge is rectangular, two long sides of the positioning ring edge are used as inserting sides, and at the moment, the locking lugs arranged in pairs are positioned on the two long sides of the positioning ring edge. This binding post sets up the retaining ring limit at assembly substrate's edge, with the assembly slot adaptation with the mutual-inductor casing, make binding post fixed in the mutual-inductor casing, set up locking lug simultaneously on the retaining ring edge, further strengthen its cooperation with the mutual-inductor casing, avoid the retaining ring limit to take off from the assembly slot, and locking lug sets up in pairs, the guide inclined plane has been seted up to the lateral surface of each locking lug, the guide inclined plane inclines to the inboard from locking lug's lateral surface, can play the guide effect when locking lug card goes into the assembly slot, locking lug does not need to distinguish the direction when setting up in pairs and can making the assembly, be favorable to improving the assembly pin volume, promote product quality.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to let the technical personnel in the field understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (5)
1. The utility model provides a residual current transformer binding post with locking location structure which characterized in that includes:
assembling a substrate;
the guide connection component is fixed on the assembly substrate;
the positioning ring edge extends along the circumferential direction of the assembly substrate, protrudes towards the outer side of the assembly substrate, is matched with the assembly slot in the mutual inductor shell in shape, and is inserted into the assembly slot so that the assembly substrate is fixed in the mutual inductor shell;
the locking lug, this locking lug is located the holding ring edge to the outside protrusion in holding ring limit, after the holding ring limit inserted the assembly slot, locking lug supported tight assembly slot inner wall, avoided the holding ring limit to take off from the assembly slot.
2. The residual current transformer wiring terminal with the anti-loosening positioning structure as claimed in claim 1, wherein:
the locking lug is provided with a pair of locking lugs, the outer side surface of each locking lug is provided with a guide inclined plane, and the included angle between each guide inclined plane and the edge of the positioning ring is an obtuse angle.
3. The residual current transformer wiring terminal with the anti-loosening positioning structure as claimed in claim 1, wherein:
the anti-loosening lug is positioned on the bottom wall of the positioning ring edge and protrudes towards the lower part of the positioning ring edge.
4. The residual current transformer wiring terminal with the anti-loosening positioning structure as claimed in claim 1, wherein:
the thickness of the positioning ring edge is smaller than that of the assembling base plate.
5. The residual current transformer wiring terminal with the anti-loose positioning structure is characterized in that,
the assembling substrate, the positioning ring edge and the anti-loosening convex block are integrally formed by adopting an insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848896.6U CN212676068U (en) | 2020-08-28 | 2020-08-28 | Residual current transformer binding post with locking location structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848896.6U CN212676068U (en) | 2020-08-28 | 2020-08-28 | Residual current transformer binding post with locking location structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212676068U true CN212676068U (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021848896.6U Active CN212676068U (en) | 2020-08-28 | 2020-08-28 | Residual current transformer binding post with locking location structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212676068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115267621A (en) * | 2022-06-24 | 2022-11-01 | 北京天能继保电力科技有限公司 | Virtual connection judgment method and device for secondary circuit wiring terminal of power grid current transformer |
-
2020
- 2020-08-28 CN CN202021848896.6U patent/CN212676068U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115267621A (en) * | 2022-06-24 | 2022-11-01 | 北京天能继保电力科技有限公司 | Virtual connection judgment method and device for secondary circuit wiring terminal of power grid current transformer |
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