阅读说明：本技术 隔离接地开关弧触头底座及隔离接地开关 (Isolation grounding switch arc contact base and isolation grounding switch ) 是由 李建彬 王清华 康留涛 黄坤鹏 李健 毕海波 吴运泽 娄晓丹 李振坡 冉旭 铁甲 于 2020-12-07 设计创作，主要内容包括：本发明涉及高压开关领域,特别是涉及到了一种隔离接地开关弧触头底座及隔离接地开关。隔离接地开关弧触头底座包括导电的连接体,所述连接体上设有用于与静端触座固定配合的第一连接结构、用于安装隔离静弧触头的第二连接结构以及用于安装接地静弧触头的第三连接结构。在使用的时候,直接将隔离静弧触头和接地静弧触头安装于连接体上,并将连接体与静端触座固定即可完成接地静弧触头和隔离静弧触头的装配,与现有技术相比,可省略原接地静弧触头和隔离静弧触头的底座,从而减少了零部件数量,解决了隔离接地开关装配效率低、零部件管理不便的问题。(The invention relates to the field of high-voltage switches, in particular to an arc contact base of an isolation grounding switch and the isolation grounding switch. The isolation grounding switch arc contact base comprises a conductive connector, wherein the connector is provided with a first connecting structure fixedly matched with the static end contact base, a second connecting structure used for installing an isolation static arc contact and a third connecting structure used for installing a grounding static arc contact. When the grounding switch is used, the isolation static arc contact and the grounding static arc contact are directly installed on the connecting body, the connecting body and the static end contact seat are fixed, and then the grounding static arc contact and the isolation static arc contact can be assembled.)

1. The isolating and grounding switch arc contact base is characterized by comprising a conductive connecting body (101), wherein a first connecting structure (11) fixedly matched with a static end contact seat (102), a second connecting structure (12) used for installing an isolating static arc contact (103) and a third connecting structure (13) used for installing a grounding static arc contact (104) are arranged on the connecting body (101).

2. The isolating and grounding switch arcing contact base according to claim 1, wherein the second connecting structure (12) and the third connecting structure (13) are located on opposite sides of the connecting body (101), and when the isolating and grounding static arcing contacts (103, 104) are installed, the plugging directions of the isolating and grounding static arcing contacts (103, 104) are opposite.

3. The isolating grounding switch arcing contact base of claim 1 or 2, characterized in that the second connection structure (12) is configured as a connection hole for mounting the isolating stationary arcing contact (103) by cooperating with a fastener.

4. The isolating grounding switch arcing contact base of claim 1 or 2, characterized in that the third connecting structure (13) is a threaded hole for mounting a grounded static arcing contact (104) by means of a thread.

5. The isolating grounding switch arcing contact base of claim 4, wherein a grounding contact finger mounting sleeve (14) is arranged on the connecting body (101) around the threaded hole, the grounding contact finger mounting sleeve (14) being arranged coaxially with the threaded hole.

6. The isolating grounding switch arcing contact base of claim 5, characterized in that the connecting body (101) is provided with a support surface at the root of the grounding contact finger mounting sleeve (14) for mounting a first insulating member (107) to isolate the corresponding end of the grounding contact finger (106) from the connecting body (101).

7. The isolating earthing switch arcing contact base of claim 1 or 2, characterized in that the first connecting structure (11) is a flange connecting structure.

8. The isolating grounding switch arcing contact base of claim 7, wherein a centerline of the flanged connection structure is collinear with a plugging centerline of the isolating static arcing contact (103) and a plugging centerline of the grounding static arcing contact (104) when the isolating static arcing contact (103) and the grounding static arcing contact (104) are installed.

9. The isolating grounding switch arcing contact base of claim 8, wherein the connecting body (101) is circular in cross-section.

10. An isolated grounding switch, comprising a housing, and a stationary contact base (102), an isolated stationary arcing contact (103), a grounded stationary arcing contact (104) and an arcing contact base mounted in the housing, wherein the arcing contact base is the isolated grounding switch arcing contact base as claimed in any one of claims 1 to 9.

Technical Field

The invention relates to the field of high-voltage switches, in particular to an arc contact base of an isolation grounding switch and the isolation grounding switch.

Background

In a combined electrical appliance, an isolation grounding switch is an important component. The main components of the isolation grounding switch are a shell, a static end contact seat, a dynamic end electric connection, a main contact, an arc contact and a corresponding operating mechanism, wherein the main contact comprises a grounding dynamic main contact, a grounding static main contact, an isolation dynamic main contact and an isolation static main contact, and the arc contact comprises a grounding dynamic arc contact, a grounding static arc contact, an isolation dynamic arc contact and an isolation static arc contact. Wherein the arcing contact is made of high temperature resistant and ablation resistant materials. When closing the switch, the moving arc contact and the static arc contact are contacted firstly; during opening, the movable arc contact and the static arc contact are separated, the main contact is protected in the closing and opening process of the isolating switch and the grounding switch, the main contact is prevented from being burnt, and the service life and long-term stable operation of the switch equipment are greatly influenced.

In the existing isolation grounding switch, the isolation static arc contact and the isolation moving arc contact are respectively installed on the static end contact base through the corresponding base, so that the number of parts in the production process is large, the cost is increased, the assembly efficiency is reduced, and certain difficulty is brought to the management of the parts on the other hand.

Disclosure of Invention

The invention aims to provide an arc contact base of an isolation grounding switch, which aims to solve the problems of low assembly efficiency and inconvenient part management of the isolation grounding switch.

Meanwhile, the invention also aims to provide the isolating grounding switch using the isolating grounding switch arc contact base.

The invention adopts the following technical scheme that: the isolation grounding switch arc contact base comprises a conductive connector, wherein the connector is provided with a first connecting structure fixedly matched with a static end contact base, a second connecting structure used for installing an isolation static arc contact and a third connecting structure used for installing a grounding static arc contact.

Has the advantages that: the connecting body of the isolating grounding switch arc contact base has the conductive characteristic, and is provided with the first connecting structure for being fixedly matched with the static end contact base, the second connecting structure for installing the isolating static arc contact and the third connecting structure for installing the grounding static arc contact.

Furthermore, the second connecting structure and the third connecting structure are located on two opposite sides of the connecting body, and when the isolation static arc contact and the grounding static arc contact are installed, the plugging directions of the isolation static arc contact and the grounding static arc contact are opposite. The second connecting structure and the third connecting structure are positioned on two sides of the connecting body which are back to back, so that the arrangement of the moving contact and the grounding moving contact is more convenient to isolate, and the interference between the moving contact and the grounding moving contact is prevented.

Still further, the second connecting structure is a connecting hole for isolating the stationary arcing contact by fitting with a fastener. The connecting hole is used as a second connecting structure, so that the structure is simple, and the isolation static arc contact can be rapidly installed conveniently.

Still further, the third connecting structure is a threaded hole for mounting the grounding static arc contact through threads. The threaded hole is used as a third connecting structure, so that the structure is simple, and the installation efficiency of the grounding static arc contact can be ensured.

Furthermore, a grounding contact finger mounting sleeve is arranged on the connecting body around the threaded hole, and the grounding contact finger mounting sleeve and the threaded hole are coaxially arranged. The grounding contact finger mounting sleeve enables the arc contact base of the isolation grounding switch to have the function of mounting the grounding contact finger, and the structure of the grounding isolation switch can be further simplified.

Furthermore, the connecting body is provided with a supporting surface at the root of the grounding contact finger mounting sleeve, and the supporting surface is used for mounting the first insulating piece to isolate the corresponding end of the grounding contact finger from the connecting body. After the grounding contact finger is installed, if the grounding contact finger is reliably contacted with the connecting body, the grounding contact finger and the connecting body are free of conductive contact problems, but in the assembling and using processes, the reliable contact between the grounding contact finger and the connecting body is difficult to guarantee under the actual conditions, and once the grounding contact finger and the connecting body are contacted without reliable contact, the problem of local resistance increase is easily caused.

Still further, the first connecting structure is a flange connecting structure. The flange connection structure is used as the first connection structure, and the flange connection structure has the advantages of simple structure and quick connection.

Further, when the isolation static arc contact and the grounding static arc contact are installed, the center line of the flange connection structure is collinear with the plugging center line of the isolation static arc contact and the plugging center line of the grounding static arc contact.

Still further, the cross-section of the connector is circular. The cross section of the connector is circular, and the connector has the advantage of convenience in machining.

The isolation grounding switch adopts the following technical scheme: isolation earthing switch, including the casing and install quiet end contact base, isolation quiet arc contact, the quiet arc contact of ground connection and arc contact base in the casing, arc contact base is including electrically conductive connector, be equipped with on the connector be used for with quiet end contact base fixed coordination's first connection structure, be used for installing the second connection structure of keeping apart quiet arc contact and be used for installing the third connection structure of the quiet arc contact of ground connection.

Furthermore, the second connecting structure and the third connecting structure are located on two opposite sides of the connecting body, and when the isolation static arc contact and the grounding static arc contact are installed, the plugging directions of the isolation static arc contact and the grounding static arc contact are opposite.

Still further, the second connecting structure is a connecting hole for isolating the stationary arcing contact by fitting with a fastener.

Still further, the third connecting structure is a threaded hole for mounting the grounding static arc contact through threads.

Furthermore, a grounding contact finger mounting sleeve is arranged on the connecting body around the threaded hole, and the grounding contact finger mounting sleeve and the threaded hole are coaxially arranged.

Furthermore, the connecting body is provided with a supporting surface at the root of the grounding contact finger mounting sleeve, and the supporting surface is used for mounting the first insulating piece to isolate the corresponding end of the grounding contact finger from the connecting body.

Still further, the first connecting structure is a flange connecting structure.

Further, when the isolation static arc contact and the grounding static arc contact are installed, the center line of the flange connection structure is collinear with the plugging center line of the isolation static arc contact and the plugging center line of the grounding static arc contact.

Still further, the cross-section of the connector is circular.

The technical scheme of the isolation grounding switch has the beneficial effects that the technical scheme of the isolation grounding switch arc contact base has the beneficial effects, and the detailed description is omitted.

For the subject to be protected by the present patent, each preferred technical solution under the same subject may be adopted alone, and when the preferred technical solutions under the same subject can be combined, two or more preferred technical solutions under the same subject may be arbitrarily combined, and the technical solutions formed by the combination are not specifically described here, and are included in the description of the present patent in this form.

Drawings

Figure 1 is a schematic structural view of an embodiment of an isolating grounding switch arc contact base of the present invention;

FIG. 2 is a schematic illustration of the isolated grounding switch arcing contact base of FIG. 1 with the grounding contact fingers, the isolated stationary arcing contacts and the grounding stationary arcing contacts installed;

fig. 3 is a state diagram of the arc contact base of the isolating and grounding switch of the invention, and is a structural schematic diagram (partial) of the embodiment of the isolating and grounding switch of the invention.

The names of the components corresponding to the corresponding reference numerals in the drawings are: 101. a linker; 11. a first connecting structure; 12. a second connecting structure; 13. a third connecting structure; 102. a stationary end contact base; 103. isolating the stationary arc contact; 104. a grounded static arc contact; 111. a flange; 112. bolt holes; 105. a hold-down bolt; 14. a grounding contact finger mounting sleeve; 106. a grounding contact finger; 107. a first insulating member; 21. a shield case; 108. a second insulating member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

The invention discloses an embodiment of an isolation grounding switch arc contact base, which comprises the following steps:

as shown in fig. 1-3, the structure of the base of the isolating and grounding switch arc contact is as shown in fig. 1, and includes a connecting body 101, and the connecting body 101 is made of metal and has a conductive characteristic. The connecting body 101 is provided with a first connecting structure 11, a second connecting structure 12 and a third connecting structure 13. The first connecting structure 11 is used for fixedly matching with a static end contact seat 102 of the isolation grounding switch, the second connecting structure 12 is used for installing an isolation static arc contact 103 of the isolation grounding switch, and the third connecting structure 13 is used for installing a grounding static arc contact 104 of the isolation grounding switch. After the arc contact base is adopted, the connection with the static end contact seat 102, the isolation static arc contact 103 and the grounding static arc contact 104 of the isolation grounding switch can be realized through one part of the connecting body 101.

In the present embodiment, the cross section of the connecting body 101 is circular, as shown in fig. 1 and 2, and based on the orientation shown in fig. 1 and 2, the first connecting structure 11 is a flange connecting structure disposed between two axial (left and right) ends of the connecting body 101, specifically, a flange 111 protruding outward in the radial direction is disposed between the left and right ends of the connecting body 101, and the flange connecting structure is formed by disposing a bolt hole 112 on the flange 111. The second connecting structure 12 is disposed on the right end surface of the connecting body 101, and specifically adopts a connecting hole, in this embodiment, the connecting hole specifically adopts a threaded hole, and when in use, the isolating static arc contact 103 of the isolating ground switch can be fixed on the connecting body 101 through the hold-down bolt 105. The third connecting structure 13 is disposed on the left end surface of the connecting body 101, so that the second connecting structure 12 and the third connecting structure are distributed on two opposite sides of the connecting body 101; in this embodiment, the third connecting structure 13 is specifically a threaded hole, and the grounded static arcing contact 104 can be installed by matching with the external thread at the tail of the grounded static arcing contact 104 when in use. When the isolating static arc contact 103 and the grounding static arc contact 104 are installed, the center line of the flange connection structure is collinear with the plugging center line of the isolating static arc contact 103 and the plugging center line of the grounding static arc contact 104. Of course, in other embodiments, the center line of the flange connection structure may be set to have a certain angle with the plugging center line of the isolating static arc contact 103 and the plugging center line of the grounding static arc contact 104 before.

In order to make the connecting body 101 have the function of mounting the grounding contact finger 106 and further simplify the structure of the isolation grounding switch, a grounding contact finger mounting sleeve 14 is further arranged on the connecting body 101 at the position surrounding the third connecting structure 13, and the grounding contact finger mounting sleeve 14 and a threaded hole forming the third connecting structure are coaxially arranged. In use, the grounding contact finger 106 (the petal-shaped contact finger) can be mounted on the grounding contact finger mounting sleeve 14 through the spring band, so that the grounding contact finger 106 can be mounted. In order to avoid unstable contact between the right end of the ground contact finger 106 and the connecting body 101, a supporting surface is provided on the connecting body 101 at the root of the ground contact finger mounting sleeve 14, and the supporting surface is used for supporting the first insulating member 107 so as to completely isolate the right end of the ground contact finger 106 from the connecting body 101.

Figure 3 shows the use of the isolating earthing switch arcing contact base of the invention (the arc contact base is circled in dotted lines). As shown in fig. 3, when the isolated ground switch arc contact base is used, the arc contact base can be fixedly mounted on the fixed end contact seat 102 of the isolated ground switch through the first connecting structure 11, the isolated fixed arc contact 103 is mounted on the connecting body 101 through the second connecting structure 12, the grounded fixed arc contact 104 is mounted on the connecting body 101 through the third connecting structure 13, one end of the grounded contact finger 106 is mounted on the grounded contact finger mounting sleeve 14, the fixed end contact seat 102 adopts a split structure, and a shielding cover 21 is arranged at one end close to the grounded contact finger 106, in this embodiment, the shielding cover 21 is connected with the fixed end contact seat 102 through a screw thread, while the other end of the grounded contact finger 106 is positioned through the second insulating member 108, the second insulating member 108 is made of an insulating material, which can prevent the problem that the left end of the fixed end contact seat 102 and the grounded contact finger 106 is in poor contact, the principle of the first insulating member 107 is the same as that of the first insulating member 107, and is not described herein again.

The embodiment of the isolation grounding switch of the invention comprises the following steps:

as shown in fig. 1-3, the isolated ground switch includes a housing (not shown), and a stationary contact base 102, an isolated stationary arcing contact 103, a grounded stationary arcing contact 104, and an arcing contact base installed in the housing, where the arcing contact base is a structure in an embodiment of the isolated ground switch arcing contact base of the present invention, and is not described herein again.

The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.