CN215265905U - Anti-opening mechanism for current transformer, circuit breaker and electrical equipment - Google Patents
Anti-opening mechanism for current transformer, circuit breaker and electrical equipment Download PDFInfo
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- CN215265905U CN215265905U CN202120497235.1U CN202120497235U CN215265905U CN 215265905 U CN215265905 U CN 215265905U CN 202120497235 U CN202120497235 U CN 202120497235U CN 215265905 U CN215265905 U CN 215265905U
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Abstract
The utility model relates to a prevent open circuit mechanism, circuit breaker and electrical equipment for current transformer, prevent open circuit mechanism and include conductive element, installed part, first conductive part and second conductive part. The conductive element is provided with a row of nuts; the mounting piece is mounted on the conductive element and is provided with a first mounting groove and a second mounting groove which are oppositely arranged at intervals; the first conductive part is arranged in the first mounting groove; the second conductive part is arranged in the second mounting groove, and the second end of the first conductive part and the second end of the second conductive part are in contact with each other to prevent the current transformer from being opened. The utility model provides a prevent mechanism of opening a way simple structure, and small is fit for installing in the inside of circuit breaker. In addition, the open-circuit prevention mechanism can prevent the current transformer from forming an open circuit by mutual contact of the first conductive part and the second conductive part, thereby improving the reliability thereof.
Description
Technical Field
The utility model relates to an electrical equipment technical field especially relates to a prevent open circuit mechanism, circuit breaker and electrical equipment for current transformer.
Background
With the development of the technology of the internet of things for power distribution, the functions of the circuit breaker used in the technology are increased, such as the measurement of communication, voltage, current and power, and the electronic components with these functions are usually loaded on the circuit breaker in the form of electronic modules to play their roles.
In actual operation, however, the electronic modules generate a high failure rate with respect to the mechanical modules inside the circuit breaker, so that maintenance of the electronic modules is often required. When the circuit breaker is maintained, the circuit breaker needs to be disconnected, at this time, an open circuit is formed at an output port of a current transformer in the circuit breaker, so that the voltage between the ports is increased sharply, and the high voltage may break down the current transformer, causing the current transformer to be damaged.
In order to prevent the output port of the current transformer from forming an open circuit, the prior art generally realizes the open circuit prevention device through an electronic component or a mechanical structure. Among them, the electronic components are susceptible to external influences (e.g., internal temperature of the circuit breaker, magnetic field, etc.) to cause reliability degradation thereof; the mechanical open-circuit preventing device is generally large in size, so that the circuit breaker is heavy and is not suitable for being installed inside the circuit breaker.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the present invention provides an open-circuit prevention mechanism for a current transformer, a circuit breaker and an electrical device, so as to solve the problems of poor reliability and large volume of the open-circuit prevention device with a mechanical structure in the process of preventing the output port of the current transformer from forming an open circuit in the electronic component in the prior art.
In order to achieve the above object, the utility model provides a following technical scheme:
in a first aspect, the present invention provides an open-circuit prevention mechanism for a current transformer, the open-circuit prevention mechanism comprising:
the conductive element is provided with a bus bar, and the bus bar is used for connecting a current transformer;
the mounting piece is mounted on the conductive element, a first mounting groove and a second mounting groove are arranged on the mounting piece at intervals, and the first mounting groove and the second mounting groove are oppositely arranged;
the first conductive part is arranged in the first mounting groove, and a first end of the first conductive part can be connected with the current transformer through the busbar;
and the second conductive part is arranged in the second mounting groove, the first end of the second conductive part can be connected with the current transformer through the bus bar, and the second end of the first conductive part and the second end of the second conductive part are in contact with each other to prevent the current transformer from being opened.
As an alternative embodiment, in the open-circuit prevention mechanism for a current transformer provided by the present invention, the second end of the first conductive part is in a hook shape, and the second end of the second conductive part is in a hook shape.
As an alternative embodiment, in the open-circuit prevention mechanism for a current transformer provided by the present invention, the second end of the first conductive part includes a first elastic part of an end portion and a first bent part, and the first elastic part is connected to the first bent part to form a hook shape;
the second end of the second conductive part comprises a second elastic part and a second bent part of the end part, and the second elastic part is connected with the second bent part to form a hook shape;
wherein the first bent portion is in contact with the second bent portion to prevent the current transformer from being open-circuited.
As an optional embodiment, in the open-circuit prevention mechanism for a current transformer provided by the present invention, an angle formed between the first elastic part and the first end of the first conductive part is 12 to 18 °;
the angle formed between the second elastic part and the first end of the second conductive part is 12-18 degrees.
As an optional implementation solution, in the open-circuit prevention mechanism for a current transformer provided in the present invention, the middle portion of the first conductive portion is provided with a first buckle, and two sides of the middle portion of the first conductive portion further have a first protruding portion, and the first buckle and the first protruding portion enable the first conductive portion to be clamped in the first mounting groove;
the middle part of the second conductive part is provided with a second buckle, two sides of the middle part of the second conductive part are also provided with second protruding parts, and the second buckle and the second protruding parts enable the second conductive part to be fixedly clamped in the second mounting groove.
As an alternative embodiment, in the open-circuit prevention mechanism for a current transformer provided by the present invention, the first conductive part is a first conductive sheet made of phosphor copper;
the second conductive part is a second conductive sheet made of phosphor copper.
As an alternative embodiment, in the anti-opening mechanism for a current transformer provided by the present invention, the conductive element is a circuit board.
As an optional implementation scheme, the utility model provides an among the open circuit prevention mechanism for current transformer, be provided with the third buckle on the installed part, the buckle mounting hole has been seted up on the circuit board and has been used for installing the third buckle.
In a second aspect, the present invention provides a circuit breaker, wherein the opening prevention mechanism is installed in any one of the above embodiments.
In a third aspect, the present invention also provides an electrical apparatus, wherein the electrical apparatus is provided with the circuit breaker according to the above embodiment.
The utility model provides a prevent mechanism of opening a way for current transformer should prevent mechanism of opening a way and include conductive element, installed part, first conductive part and second conductive part. The conductive element is provided with a row of nuts; the mounting piece is mounted on the conductive element and is provided with a first mounting groove and a second mounting groove at intervals, and the first mounting groove and the second mounting groove are oppositely arranged; the first conductive part is arranged in the first mounting groove, and a first end of the first conductive part can be connected with the current transformer through the busbar; and the second conductive part is arranged in the second mounting groove, the first end of the second conductive part can be connected with the current transformer through the bus bar, and the second end of the first conductive part and the second end of the second conductive part are matched with each other to prevent the current transformer from being opened. Therefore, the utility model provides a prevent mechanism that opens circuit simple structure, and small is fit for installing in the inside of circuit breaker. In addition, the open-circuit prevention mechanism can prevent the current transformer from forming an open circuit by mutual contact of the first conductive part and the second conductive part, thereby improving the reliability thereof.
In addition to the technical problems, technical features constituting technical solutions, and advantageous effects brought by the technical features of the technical solutions described above, the present invention provides other technical problems that can be solved by the open-circuit prevention mechanism for a current transformer, the circuit breaker, and the electrical equipment, other technical features included in the technical solutions, and advantageous effects brought by the technical features, which will be described in further detail in specific embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of an open-circuit prevention mechanism for a current transformer according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a mounting member provided in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of a first conductive part provided in embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of the first conductive part and the second conductive part installed in the mounting member according to embodiment 1 of the present invention.
Description of reference numerals:
10-an anti-opening mechanism;
11-a conductive element;
111-mother row;
12-a mounting member;
121-a first mounting groove;
122-a second mounting groove;
123-a third buckle;
13-a first conductive portion;
131-a first resilient portion;
132-a first bend portion;
133-a first clasp;
134-a first projection;
14-a second conductive portion;
141-a second elastic portion;
142-a second bend portion;
143-second catch.
Detailed Description
The embodiments or implementation schemes in the specification are described in a progressive mode, each embodiment focuses on differences from other embodiments, and the same parts and the similar parts among the embodiments are mutually referred.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In order to prevent the output port of the current transformer from forming an open circuit, the prior art generally realizes the open circuit prevention device through an electronic component or a mechanical structure. Among them, the electronic components are susceptible to external influences (e.g., internal temperature of the circuit breaker, magnetic field, etc.) to cause reliability degradation thereof; the mechanical open-circuit preventing device is generally large in size, so that the circuit breaker is heavy and is not suitable for being installed inside the circuit breaker.
In order to solve the above problem the utility model provides a prevent mechanism of opening a way for current transformer should prevent mechanism of opening a way and include conductive element, installed part, first conductive part and second conductive part. The conductive element is provided with a row of nuts; the mounting piece is mounted on the conductive element and is provided with a first mounting groove and a second mounting groove at intervals, and the first mounting groove and the second mounting groove are oppositely arranged; the first conductive part is arranged in the first mounting groove, and a first end of the first conductive part can be connected with the current transformer through the busbar; and the second conductive part is arranged in the second mounting groove, the first end of the second conductive part can be connected with the current transformer through the bus bar, and the second end of the first conductive part and the second end of the second conductive part are matched with each other to prevent the current transformer from being opened. Therefore, the utility model provides a prevent mechanism that opens circuit simple structure, and small is fit for installing in the inside of circuit breaker. In addition, the open-circuit prevention mechanism can prevent the current transformer from forming an open circuit by mutual contact of the first conductive part and the second conductive part, thereby improving the reliability thereof.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 to 4, the present invention provides an open-circuit prevention mechanism 10 for a current transformer, where the open-circuit prevention mechanism 10 includes a conductive element 11, a mounting member 12, a first conductive part 13, a second conductive part 14, and the like.
The conductive element 11 is provided with a row bus 111, the row bus 111 can be used for connecting a current transformer, the current transformer transmits a current signal in an acquired loop to an electronic control module in the circuit breaker through the row bus, and the electronic control module sends a control instruction according to the current signal.
In the embodiment provided by the present invention, there is no particular limitation on the conductive element 11, and it may be a conductive element in a circuit breaker known to those skilled in the art.
In some embodiments of the present invention, the conductive element 11 may be a printed circuit board.
In order to better mount the first conductive part 13 and the second conductive part 14 on the conductive element 11, the mounting piece 12 in this embodiment is mounted on the conductive element 11, and a first mounting groove 121 and a second mounting groove 122 are spaced apart from each other on the mounting piece 12, the first mounting groove 121 is used for mounting the first conductive part 13, the second mounting groove 122 is used for mounting the second conductive part 14, and the first conductive part 13 and the second conductive part 14 are arranged opposite to each other.
Further, the mounting member 12 is a plastic housing and is formed by an injection molding process. As shown in fig. 2, the plastic case is provided with a plurality of pairs of mounting grooves for mounting the conductive parts to prevent the current transformer in the circuit breaker from forming an open circuit.
Furthermore, bosses are arranged on two sides in the mounting grooves, the middle parts between the mounting grooves which are oppositely arranged are inwards sunken to form grooves, and the conductive parts can be clamped in the mounting grooves through the bosses and the grooves.
In some embodiments of the present invention, a third buckle 123 is further disposed on the bottom of the mounting member 12, and a buckle mounting hole is disposed on the conductive element 11, and the buckle mounting hole can be used for mounting the third buckle, so as to firmly fix the mounting member 12 on the conductive element 11, as shown in fig. 4.
In addition, a positioning column is further arranged beside the third buckle, so that the installation of other parts in the circuit breaker is facilitated.
As described above, the first conductive part 13 and the second conductive part 14 are respectively installed in the first installation groove 121 and the second installation groove 122, and the first end of the first conductive part 13 can be connected to the current transformer in the circuit breaker through the row bus bar 111 on the conductive member 11, and the first end of the second conductive part 14 can also be connected to the current transformer in the circuit breaker through the row bus bar 111 on the conductive member 11, so that when the second end of the first conductive part 13 and the second end of the second conductive part 14 contact each other, the current transformer can be prevented from forming an open circuit.
In some embodiments of the present invention, the second end of the first conductive part 13 is in a hook shape, and the second end of the second conductive part 14 is in a hook shape, and reference may be made to fig. 3.
Further, the second end of the first conductive part 13 includes a first elastic part 131 and a first bent part 132 at the end, and the first elastic part 131 is connected to the first bent part 132 to form a hook shape.
It is understood that the second end of the second conductive portion 14 also includes a second elastic portion 141 and a second bent portion 142 at the end, and the second elastic portion 141 is connected to the second bent portion 142 to form a hook shape. Wherein the contact of the first bending part 132 and the second bending part 142 can prevent the current transformer from forming an open circuit. When the circuit breaker normally works, the first bending part 132 and the second bending part 142 can be isolated by external force, the first elastic part 131 and the second elastic part 141 can elastically deform, and after the external force disappears, the first elastic part 131 and the second elastic part 141 drive the first bending part 132 and the second bending part 142 to contact with each other under the action of self elastic force, so that the current transformer is prevented from being opened.
Further, in the first conductive portion 13, an angle formed between the first elastic portion 131 and the first end of the first conductive portion 13 is 12 to 18 °. In the second conductive portion 14, an angle formed between the second elastic portion 142 and the first end of the second conductive portion 14 is 12 to 18 °.
In some embodiments of the present invention, the middle portion of the first conductive portion 13 is provided with a first buckle 133, and the two sides of the middle portion of the first conductive portion 13 are further provided with a first protruding portion 134, and the first buckle 133 and the first protruding portion 134 cooperate with the boss and the groove in the mounting groove to enable the first conductive portion 13 to be buckled in the first mounting groove 121.
It can be understood that the middle portion of the second conductive portion 14 is provided with a second snap 143, and two sides of the middle portion of the second conductive portion 14 are further provided with second protruding portions, and the second snap 143 and the second protruding portions cooperate with the boss and the groove in the mounting groove to enable the second conductive portion 14 to be snapped into the second mounting groove 122.
In the embodiment provided by the present invention, the material of the first conductive part 13 and the second conductive part 14 is not particularly limited, and may be a conductive material known to those skilled in the art.
In some embodiments of the present invention, the first conductive part 13 is a first conductive sheet made of phosphor copper; the second conductive portion 14 is a second conductive sheet made of phosphor copper.
To sum up, the utility model provides a prevent open circuit mechanism simple structure, and small is fit for installing in the inside of circuit breaker. In addition, the open-circuit prevention mechanism can prevent the current transformer from forming an open circuit by mutual contact of the first conductive part and the second conductive part, thereby improving the reliability thereof.
Example 2
The present embodiment further provides a circuit breaker, in which the open-circuit prevention mechanism 10 for a current transformer in any one of the above embodiments is installed, based on the characteristics of the open-circuit prevention mechanism.
Since the open-circuit prevention mechanism 10 is installed in the circuit breaker, the current transformer can be prevented from being damaged due to the open circuit formed by the open-circuit prevention mechanism 10. Moreover, the open-circuit prevention mechanism 10 is simple in structure and convenient to install.
Example 3
The embodiment of the utility model provides a still further provide an electrical equipment, including the circuit breaker among the above-mentioned embodiment in this electrical equipment.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless explicitly stated otherwise, the terms "mounting," "connecting," "fixing," and the like are to be understood in a broad sense, and for example, may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or communicable with each other; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected internally or in any other manner known to those skilled in the art, unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An open-circuit prevention mechanism for a current transformer, the open-circuit prevention mechanism comprising:
the conductive element is provided with a bus bar, and the bus bar is used for connecting a current transformer;
the mounting piece is mounted on the conductive element, a first mounting groove and a second mounting groove are arranged on the mounting piece at intervals, and the first mounting groove and the second mounting groove are oppositely arranged;
the first conductive part is arranged in the first mounting groove, and a first end of the first conductive part can be connected with the current transformer through the busbar;
and the second conductive part is arranged in the second mounting groove, the first end of the second conductive part can be connected with the current transformer through the bus bar, and the second end of the first conductive part and the second end of the second conductive part are in contact with each other to prevent the current transformer from being opened.
2. The open-circuit prevention mechanism for a current transformer according to claim 1, wherein the second end of the first conductive part is hook-shaped, and the second end of the second conductive part is hook-shaped.
3. The open-circuit prevention mechanism for a current transformer according to claim 2, wherein the second end of the first conductive part includes a first elastic part of an end and a first bent part, the first elastic part being connected to the first bent part to form a hook shape;
the second end of the second conductive part comprises a second elastic part and a second bent part of the end part, and the second elastic part is connected with the second bent part to form a hook shape;
wherein the first bent portion is in contact with the second bent portion to prevent the current transformer from being open-circuited.
4. The opening prevention mechanism for a current transformer according to claim 3, wherein an angle formed between the first elastic portion and the first end of the first conductive portion is 12-18 °;
the angle formed between the second elastic part and the first end of the second conductive part is 12-18 degrees.
5. The opening prevention mechanism for a current transformer according to any one of claims 1 to 4, wherein a first buckle is provided at a middle portion of the first conductive portion, and first protruding portions are further provided at both sides of the middle portion of the first conductive portion, the first buckle and the first protruding portions causing the first conductive portion to be buckled in the first mounting groove;
the middle part of the second conductive part is provided with a second buckle, two sides of the middle part of the second conductive part are also provided with second protruding parts, and the second buckle and the second protruding parts enable the second conductive part to be fixedly clamped in the second mounting groove.
6. The open-circuit prevention mechanism for a current transformer according to claim 1, wherein said first conductive part is a first conductive sheet made of phosphor copper;
the second conductive part is a second conductive sheet made of phosphor copper.
7. The anti-opening mechanism for a current transformer according to claim 1, wherein the conductive member is a circuit board.
8. The open-circuit prevention mechanism for the current transformer according to claim 7, wherein a third buckle is arranged on the mounting member, and a buckle mounting hole is formed on the circuit board for mounting the third buckle.
9. A circuit breaker characterized in that the opening prevention mechanism for a current transformer of any one of claims 1 to 8 is installed in the circuit breaker.
10. An electric apparatus characterized in that the electric apparatus is equipped with the circuit breaker according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120497235.1U CN215265905U (en) | 2021-03-09 | 2021-03-09 | Anti-opening mechanism for current transformer, circuit breaker and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120497235.1U CN215265905U (en) | 2021-03-09 | 2021-03-09 | Anti-opening mechanism for current transformer, circuit breaker and electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215265905U true CN215265905U (en) | 2021-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120497235.1U Active CN215265905U (en) | 2021-03-09 | 2021-03-09 | Anti-opening mechanism for current transformer, circuit breaker and electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215265905U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783836A (en) * | 2022-04-22 | 2022-07-22 | 福建鑫博亿电力科技有限公司 | Primary and secondary circuit separation method of low-voltage circuit breaker |
-
2021
- 2021-03-09 CN CN202120497235.1U patent/CN215265905U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783836A (en) * | 2022-04-22 | 2022-07-22 | 福建鑫博亿电力科技有限公司 | Primary and secondary circuit separation method of low-voltage circuit breaker |
| CN114783836B (en) * | 2022-04-22 | 2023-12-26 | 福建鑫博亿电力科技有限公司 | Secondary circuit separation method of low-voltage circuit breaker |
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Address after: 411201 28 Bai Shi Road, Jing Kai District, Xiangtan, Hunan Patentee after: Weisheng Energy Technology Co.,Ltd. Address before: 411201 28 Bai Shi Road, Jing Kai District, Xiangtan, Hunan Patentee before: WASION ELECTRIC Co.,Ltd. |