Drop-out fuse connecting structure and drop-out fuse
阅读说明：本技术 一种跌落式熔断器连接结构及跌落式熔断器 (Drop-out fuse connecting structure and drop-out fuse ) 是由 曾思宏 郑甦 李哲高 陈万凯 林淮 陈凯鹤 江嘉欣 陈沛松 于 2020-06-17 设计创作，主要内容包括：本发明公开了一种跌落式熔断器连接结构,属于电力器材技术领域,用于跌落式熔断器的动触头与静触头之间的导流,其包括固定件和活动件。固定件的一端能够与静触头连接；活动件具有连接部和转动部,连接部与固定件的另一端滑动连接以使转动部靠近或远离固定件,转动部转动连接于连接部,转动部具有接触平面,接触平面能够贴合动触头的连接面。该连接结构的长度可调节,转动部能够灵活调整位置和方向以使接触平面与熔管的动触头的接触平面紧密贴合,接触良好,导流效果好,而且结构牢固,该连接结构在受外力冲击时不易变形。本发明还公开了一种跌落式熔断器,其包括上述的跌落式熔断器连接结构,导流效果好,减少了导流处产生故障的几率。(The invention discloses a drop-out fuse connecting structure, belongs to the technical field of power equipment, is used for guiding current between a moving contact and a static contact of a drop-out fuse, and comprises a fixed part and a moving part. One end of the fixing piece can be connected with the static contact; the moving part has connecting portion and rotation portion, and connecting portion and the other end sliding connection of mounting are so that rotation portion is close to or keep away from the mounting, and rotation portion rotates and connects in connecting portion, and rotation portion has the contact plane, and the contact plane can laminate the connection face of moving contact. The length of the connecting structure is adjustable, the rotating part can flexibly adjust the position and the direction so that the contact plane is tightly attached to the contact plane of the moving contact of the fusion tube, the contact is good, the flow guide effect is good, the structure is firm, and the connecting structure is not easy to deform when being impacted by external force. The invention also discloses a drop-out fuse which comprises the drop-out fuse connecting structure, the flow guiding effect is good, and the probability of faults at the flow guiding position is reduced.)
1. The utility model provides a drop out fuse connection structure for water conservancy diversion between drop out fuse's moving contact and the static contact, its characterized in that includes:
the fixed contact is characterized by comprising a fixed part (1), wherein one end of the fixed part (1) can be connected with the fixed contact;
the movable piece (2) is provided with a connecting portion (21) and a rotating portion (22), the connecting portion (21) is connected with the other end of the fixed piece (1) in a sliding mode so that the rotating portion (22) is close to or far away from the fixed piece (1), the rotating portion (22) is connected to the connecting portion (21) in a rotating mode, the rotating portion (22) is provided with a contact plane (220), and the contact plane (220) can be attached to a connecting surface (7) of the movable contact.
2. The drop-out fuse connection structure according to claim 1, wherein the fixing member (1) is provided with a first accommodating groove, an opening of the first accommodating groove faces the connecting portion (21), and the connecting portion (21) is slidably disposed in the first accommodating groove and can retract into or extend out of the first accommodating groove.
3. A drop-out fuse connection structure as claimed in claim 2, wherein a through hole is provided on a side wall of the first receiving recess, a sliding guide groove is provided on a side wall of the connection portion (21), the through hole is communicated with the sliding guide groove, and the sliding connection member (12) is inserted through the through hole and the sliding guide groove.
4. A drop out fuse connection structure as claimed in claim 2, further comprising an expansion member (3), wherein the expansion member (3) is accommodated in the first accommodating recess, one end of the expansion member (3) abuts against the connection portion (21), and the other end abuts against the bottom of the first accommodating recess.
5. A drop out fuse connection structure as claimed in claim 4, wherein the connection portion (21) has a second receiving recess, an opening of the second receiving recess and an opening of the first receiving recess are oppositely arranged to enclose an adjustable receiving space, and the extensible member (3) is received in the adjustable receiving space.
6. A drop out fuse connection structure as claimed in claim 4, wherein the telescopic member (3) is a spring.
7. A drop-out fuse connection structure as claimed in claim 4, wherein a rotation shaft seat (221) is provided on a side of the rotation portion (22) facing away from the contact plane (220), a mounting hole is provided at an end of the connection portion (21) facing away from the fixing member (1), and a rotation shaft (23) is simultaneously inserted through the rotation shaft seat (221) and the mounting hole to connect the connection portion (21) and the rotation portion (22).
8. A drop-out fuse connection structure as claimed in claim 7, wherein the fixing member (1) has a fixing hole (11) at an end thereof remote from the connecting portion (21).
9. A drop out fuse connection structure as claimed in any one of claims 1 to 8, wherein the fixed member (1) and the movable member (2) are both made of copper.
10. A drop-out fuse comprising a drop-out fuse attachment structure as claimed in any one of claims 1 to 9.
Technical Field
The invention relates to the technical field of power equipment, in particular to a drop-out fuse and a connecting structure thereof.
Background
The drop-out fuse is a short-circuit protection switch most commonly used for 10kV distribution line branch lines and distribution transformers, has the characteristics of economy, convenience in operation, strong outdoor environment adaptability and the like, and is widely applied to connection of 10kV distribution lines and distribution transformers for protection and equipment switching and switching operation. Drop-out fuses are available in a plurality of series, such as RW, HRW series, etc., wherein RW-drop-out fuses are generally used for outdoor use, and also have a plurality of models.
As shown in fig. 1, the drop-out fuse of RW3 type, RW11 type, or the like includes a connecting terminal, a composite insulator 4, an upper fixed
1. the copper elastic sheet 6 is easy to deform, cannot resist external force impact and is easy to have poor contact;
2. the copper elastic sheet 6 is connected between the moving contact and the static contact, so that the contact area is small, and the flow guide effect is not ideal;
3. the copper spring 6 in the fixed state is not easy to adjust the contact surface so as to be better attached to the moving contact.
Disclosure of Invention
The invention aims to provide a drop-out fuse connecting structure and a drop-out fuse, which are used for solving the problems of poor flow guiding effect and poor contact of the drop-out fuse due to the use of a copper elastic sheet and ensuring that the drop-out fuse using the drop-out fuse connecting structure has large flow guiding contact area and good flow guiding effect.
As the conception, the technical scheme adopted by the invention is as follows:
a drop out fuse connection structure for water conservancy diversion between drop out fuse's moving contact and static contact includes:
one end of the fixed part can be connected with the fixed contact;
the movable part is provided with a connecting part and a rotating part, the connecting part is connected with the other end of the fixing part in a sliding mode so that the rotating part is close to or far away from the fixing part, the rotating part is rotatably connected to the connecting part, the rotating part is provided with a contact plane, and the contact plane can be attached to the connecting surface of the movable contact.
Optionally, the fixing member is provided with a first accommodating groove, an opening of the first accommodating groove faces the connecting portion, and the connecting portion is slidably disposed in the first accommodating groove and can retract into or extend out of the first accommodating groove.
Optionally, a connecting through hole is formed in the side wall of the first accommodating groove, a sliding guide groove is formed in the side wall of the connecting portion, the connecting through hole is communicated with the sliding guide groove, and a sliding connecting piece penetrates through the connecting through hole and the sliding guide groove at the same time.
Optionally, the connector further comprises an expansion piece, the expansion piece is accommodated in the first accommodating groove, one end of the expansion piece abuts against the connecting portion, and the other end of the expansion piece abuts against the groove bottom of the first accommodating groove.
Optionally, the connecting portion has a second receiving groove, an opening of the second receiving groove and an opening of the first receiving groove are oppositely disposed to enclose an adjustable receiving space, and the extensible member is received in the adjustable receiving space.
Optionally, the telescoping member is a spring.
Optionally, a rotating shaft seat is arranged on a side surface of the rotating portion, which deviates from the contact plane, a mounting hole is formed in one end, which deviates from the fixing member, of the connecting portion, and a rotating shaft penetrates through the rotating shaft seat and the mounting hole at the same time to connect the connecting portion and the rotating portion.
Optionally, one end of the fixing piece, which is far away from the connecting portion, is provided with a fixing hole.
Optionally, the fixed member and the movable member are both made of copper.
A drop-out fuse comprises the drop-out fuse connecting structure.
The invention has the beneficial effects that:
the invention provides a drop-out fuse connecting structure, wherein a fixing piece is connected with a connecting part in a sliding mode, so that a rotating part can be close to or far away from the fixing piece through the connecting part, the length of the connecting structure can be adjusted, and in addition, the rotating part is connected with the connecting part in a rotating mode, so that the position and the direction of the rotating part can be flexibly adjusted, and a contact plane can be tightly attached to a contact plane of a moving contact of a fusion tube. This drop out fuse connection structure has the contact plane with the junction of moving contact and makes area of contact big, and the water conservancy diversion is effectual, and the position and the orientation of contact plane are convenient for adjust for the contact plane can laminate better with the connection face of moving contact, and the contact is good, sound construction moreover, and it is non-deformable when receiving external force to strike.
Drawings
Fig. 1 is a schematic structural diagram of a RW3 type drop-out fuse of the prior art;
fig. 2 is a side view of a drop out fuse connecting structure according to an embodiment of the present invention.
In the figure:
1. a fixing member; 2. a movable member; 3. a telescoping member; 4. a composite insulator; 5. a fusion tube; 6. a copper spring plate; 7. a connecting surface;
11. a fixing hole; 12. a sliding connector; 21. a connecting portion; 22. a rotating part; 23. a rotating shaft; 41. an upper static contact; 42. a lower static contact; 51. an upper moving contact; 52. a lower moving contact;
220. a contact plane; 221. a rotating shaft seat.
Detailed description of the invention
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise expressly specified or limited, 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 specified 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. Also, the first feature "over," "above," and "on" the second feature includes the first feature being directly over and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature "under," "below," and "beneath" a second feature includes a first feature that is directly under and obliquely below the second feature, or simply means that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
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