CN108198704B - Contact structure and switchgear using the same - Google Patents
Contact structure and switchgear using the same Download PDFInfo
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- CN108198704B CN108198704B CN201810031296.1A CN201810031296A CN108198704B CN 108198704 B CN108198704 B CN 108198704B CN 201810031296 A CN201810031296 A CN 201810031296A CN 108198704 B CN108198704 B CN 108198704B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
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Abstract
本发明涉及配电设备领域,特别涉及触头结构及使用该触头结构的开关柜。触头结构包括基座,基座上转动装配有支撑座,支撑座上摆动装配有触头座,触头座上设有用于与适配触头插接配合的插接结构,支撑座相对于基座的转动轴线与触头座相对于支撑座的摆动轴线具有夹角,所述触头座相对于支撑座的摆动轴线与所述插接结构的插接方向有夹角。与目前的仅仅通过装配在触头座上的弹性触指适配动触头和静触头的配合误差相比,本发明的触头结构的触头座可以通过支撑座相对于基座转动和自身相对于支撑座的摆动适应与适配触头较大的安装误差,解决了目前的动触头与静触头存在较大的安装误差时无法正常闭合的问题。
The invention relates to the field of power distribution equipment, in particular to a contact structure and a switch cabinet using the contact structure. The contact structure includes a base, a support seat is rotatably assembled on the base, a contact seat is oscillated and assembled on the support seat, and a plug-in structure for plugging and matching with the matching contact is arranged on the contact seat, and the support seat is opposite to the contact seat. The rotation axis of the base has an included angle with the swing axis of the contact seat relative to the support seat, and the swing axis of the contact seat relative to the support seat has an included angle with the insertion direction of the insertion structure. Compared with the current fit error of fitting the movable contact and the stationary contact only by the elastic contact fingers assembled on the contact seat, the contact seat of the contact structure of the present invention can be rotated and adjusted relative to the base through the support seat. The swing of itself relative to the support seat adapts to the large installation error of the fitting contact, which solves the problem that the current movable contact and the static contact cannot be normally closed when there is a large installation error.
Description
技术领域technical field
本发明涉及配电设备领域,特别涉及触头结构及使用该触头结构的开关柜。The invention relates to the field of power distribution equipment, in particular to a contact structure and a switch cabinet using the contact structure.
背景技术Background technique
在中压配电网系统中,移开式金属封闭开关柜应用广泛,这种类型的开关柜包括柜体和手车,柜体与手车之间由隔离触头连接,目前比较常见的隔离触头有梅花触头、鸭嘴触头以及弹簧触指连接式触头。其中梅花触指式是目前开关柜市场的主流产品,该触头包括多片触指,内圈由框架支撑,外圈靠弹簧扎紧固定。这种触头可包容手车与柜体间的所有方向的定量配合误差,动触头与静触头之间的触头压紧力靠外圈弹簧保证。鸭嘴式触头目前在移开式开关柜应用的比较少,鸭嘴式触头的内部由框架支撑并由弹簧拉紧,这种触头可以包容手车与柜体间部分方向的定量误差。弹簧触指连接式触头在移开式开关柜应用的比较少,其结构简单,其能够包容手车与柜体间部分方向的定量误差。上述三种触头均只能够允许的误差仅仅限于动触头与静触头的配合误差,误差允许范围较小,在手车与开关柜之间存在较大的安装误差时,上述触头结构均无法保证动触头与静触头的正常闭合。In the medium-voltage distribution network system, the removable metal-enclosed switchgear is widely used. This type of switchgear includes a cabinet and a handcart. The cabinet and the handcart are connected by isolation contacts. At present, the more common isolation The contacts include plum blossom contacts, duckbill contacts and spring-fingered contacts. Among them, the plum blossom contact finger type is the mainstream product in the switch cabinet market at present. The contact includes multiple contact fingers, the inner ring is supported by the frame, and the outer ring is fastened and fixed by the spring. This kind of contact can accommodate the quantitative matching error in all directions between the handcart and the cabinet, and the contact pressing force between the moving contact and the static contact is guaranteed by the outer coil spring. Duckbill contacts are rarely used in removable switch cabinets. The inside of duckbill contacts is supported by a frame and tensioned by springs. This contact can accommodate the quantitative error in some directions between the handcart and the cabinet. . Spring-finger-connected contacts are rarely used in removable switch cabinets, and their structure is simple, which can accommodate some of the quantitative errors in the direction between the handcart and the cabinet. The allowable errors of the above three contacts are only limited to the matching error between the moving contact and the static contact, and the allowable error range is small. When there is a large installation error between the handcart and the switch cabinet, the above contact structure Neither can guarantee the normal closing of the moving contact and the static contact.
发明内容SUMMARY OF THE INVENTION
本发明的目的是提供一种触头结构,以解决目前的动触头与静触头存在较大的安装误差时无法正常闭合的问题;另外,本发明的目的还在于提供一种使用上述触头结构的开关柜。The purpose of the present invention is to provide a contact structure to solve the problem that the current movable contact and the static contact cannot be normally closed when there is a large installation error; in addition, the purpose of the present invention is to provide a contact Switchgear with head structure.
为实现上述目的,本发明的触头结构的第一种技术方案为:触头结构包括基座,基座上转动装配有支撑座,支撑座上摆动装配有触头座,触头座上设有用于与适配触头插接配合的插接结构,支撑座相对于基座的转动轴线与触头座相对于支撑座的摆动轴线具有夹角,所述触头座相对于支撑座的摆动轴线与所述插接结构的插接方向有夹角。In order to achieve the above purpose, the first technical solution of the contact structure of the present invention is as follows: the contact structure includes a base, a support base is rotatably assembled on the base, a contact base is oscillatedly assembled on the support base, and a contact base is arranged on the contact base. There is a plug-in structure for plugging and mating with the matching contacts, the rotation axis of the support seat relative to the base and the swing axis of the contact seat relative to the support seat have an included angle, and the contact seat swings relative to the support seat. The axis has an included angle with the insertion direction of the insertion structure.
本发明的触头结构的第二种技术方案为:在本发明的触头结构的第一种技术方案的基础上,所述支撑座相对于基座的转动轴线与触头座相对于支撑座的摆动轴线相互垂直,触头座相对于支撑座的摆动轴线与插接结构的插接方向垂直。方便触头结构的布置,同时也能够使触头结构适应更多情况的安装误差。The second technical solution of the contact structure of the present invention is: on the basis of the first technical solution of the contact structure of the present invention, the rotation axis of the support seat relative to the base and the contact seat relative to the support seat The swing axes of the contacts are perpendicular to each other, and the swing axis of the contact seat relative to the support seat is perpendicular to the insertion direction of the insertion structure. The arrangement of the contact structure is convenient, and at the same time, the contact structure can be adapted to more installation errors.
本发明的触头结构的第三种技术方案为:在本发明的触头结构的第一种技术方案的基础上,所述触头座包括支架和摆动装配在支架上的第一夹板、第二夹板,触头座通过支架摆动装配在支撑座上,第一、第二夹板与支撑座导电连接;触头座还包括保持第一夹板和第二夹板相互靠近的弹性保持结构,第一、第二夹板远离支撑座的一端围成所述插接结构。通过两个夹板组成的触头座方便加工,两个夹板通过弹性保持结构能够使两个夹板围成的插接结构适应更大的安装误差。The third technical solution of the contact structure of the present invention is as follows: on the basis of the first technical solution of the contact structure of the present invention, the contact seat comprises a bracket, a first clamp plate, a Two plywoods, the contact seat is swayed and assembled on the support seat through the bracket, the first and second plywood are electrically connected to the support seat; the contact seat also includes an elastic holding structure for keeping the first plywood and the second plywood close to each other, the first and second plywood are connected to each other. One end of the second splint away from the support base forms the plug-in structure. The contact base composed of two clamping plates is convenient to process, and the two clamping plates can adapt to larger installation errors through the elastic holding structure of the two clamping plates.
本发明的触头结构的第四种技术方案为:在本发明的触头结构的第三种技术方案的基础上,所述弹性保持结构包括穿装在第一、第二夹板上的拉杆,拉杆的两端均设有处于第一、第二夹板外侧的弹性保持件,所述第一、第二夹板通过所述弹性保持件保持相互靠近。通过拉杆和弹性保持件配合,既能够保证第一、第二夹板围成的插接结构能够夹紧适配触头,又能够保证第一、第二夹板在活动过程中受拉杆的约束。The fourth technical solution of the contact structure of the present invention is: on the basis of the third technical solution of the contact structure of the present invention, the elastic holding structure includes a pull rod that is worn on the first and second clamping plates, Both ends of the tie rod are provided with elastic retaining members located outside the first and second clamping plates, and the first and second clamping plates are kept close to each other by the elastic retaining members. Through the cooperation of the pull rod and the elastic holder, it can not only ensure that the plug-in structure enclosed by the first and second clamp plates can clamp the fitting contacts, but also ensure that the first and second clamp plates are constrained by the pull rod during the movement.
本发明的触头结构的第五种技术方案为:在本发明的触头结构的第四种技术方案的基础上,所述拉杆上套装有处于第一、第二夹板之间的定位套,第一夹板和第二夹板均通过所述弹性保持件压装在定位套的两端。定位套能够防止第一、第二夹板过度靠近,影响适配触头的插入。The fifth technical solution of the contact structure of the present invention is: on the basis of the fourth technical solution of the contact structure of the present invention, the tie rod is sleeved with a positioning sleeve between the first and second clamping plates, Both the first clamping plate and the second clamping plate are press-fitted on both ends of the positioning sleeve through the elastic retaining member. The positioning sleeve can prevent the first and second clamping plates from being too close, which affects the insertion of the mating contacts.
本发明的触头结构的第六种技术方案为:在本发明的触头结构的第三或第四或第五种技术方案的基础上,所述插接结构包括分别设置在所述第一夹板和第二夹板上用于与适配触头导电接触的插接触指。通过插接触指与适配触头导电接触,既能够保证导电性能,又能够适配一定的定量误差。The sixth technical solution of the contact structure of the present invention is: on the basis of the third or fourth or fifth technical solutions of the contact structure of the present invention, the plug-in structure comprises: Plug-in contact fingers on the clamping plate and the second clamping plate for conducting conductive contact with the mating contacts. By inserting the contact fingers and conducting conductive contact with the adapting contacts, both the conductive performance can be ensured, and a certain quantitative error can be adapted.
本发明的触头结构的第七种技术方案为:在本发明的触头结构的第三或第四或第五种技术方案的基础上,所述支撑座包括与触头座配合的触头座配合部分,触头座配合部分夹装在两个夹板之间,第一夹板和第二夹板相对的面上均设有与触头座配合部分导电接触的支撑座触指,所述第一夹板和第二夹板通过支撑座触指与支撑座导电连接。触头座配合部分夹装在两个夹板之间,能够保证其电连接的稳定性。另外,在带有定位套的另一个技术方案中,定位套能够防止两个夹板与触头座配合部分之间的作用力过大,损坏支撑座或者夹板、也有可能损坏支撑座上的支撑座触指。The seventh technical solution of the contact structure of the present invention is: on the basis of the third or fourth or fifth technical solutions of the contact structure of the present invention, the support seat includes a contact that cooperates with the contact seat The seat mating part, the contact seat mating part is clamped between the two clamping plates, the opposite surfaces of the first clamping plate and the second clamping plate are provided with supporting seat contact fingers which are in conductive contact with the contact seat mating part, the first clamping plate and the second clamping plate The splint and the second splint are electrically connected to the support base through the support base contact fingers. The mating part of the contact seat is clamped between the two clamping plates, which can ensure the stability of the electrical connection. In addition, in another technical solution with a positioning sleeve, the positioning sleeve can prevent the force between the two clamping plates and the mating part of the contact seat from being too large, which may damage the supporting seat or the clamping plate, and may also damage the supporting seat on the supporting seat. Touch your finger.
本发明的触头结构的第八种技术方案为:在本发明的触头结构的第七种技术方案的基础上,所述支架包括平行间隔设置的三个摆动轴,其中处于中间的摆动轴与支撑座摆动配合,处于两边的摆动轴分别与第一、第二夹板摆动配合,支撑座触指处于第一夹板和第二夹板上处于两个摆动轴之间的位置。简化支架的结构,同时支撑座触指处于两个摆动轴之间,能够保证支撑座触指与支撑座电连接的稳定性,避免支撑座触指与支撑座之间导电接触面积有大的变化。The eighth technical solution of the contact structure of the present invention is: on the basis of the seventh technical solution of the contact structure of the present invention, the bracket includes three swing shafts arranged in parallel and spaced apart, wherein the swing shaft in the middle The swing shafts on both sides are respectively swayed and matched with the first and second splints, and the contact fingers of the support base are located between the two swing shafts on the first splint and the second splint. The structure of the bracket is simplified, and the contact fingers of the support seat are located between the two swing shafts, which can ensure the stability of the electrical connection between the contact fingers of the support seat and the support seat, and avoid the large change of the conductive contact area between the contact fingers of the support seat and the support seat. .
本发明的触头结构的第九种技术方案为:在本发明的触头结构的第一种至第五种中任意一种技术方案的基础上,所述基座上设有对支撑座施加自复位作用力的自复位弹性件。使触头结构与适配触头分离后,支撑座能够回复至初始位置。The ninth technical solution of the contact structure of the present invention is: on the basis of any one of the first to fifth technical solutions of the contact structure of the present invention, the base is provided with a force applied to the support seat. Self-resetting elastic member for self-resetting force. After the contact structure is separated from the mating contact, the support seat can return to the original position.
本发明的触头结构的第十种技术方案为:在本发明的触头结构的第九种技术方案的基础上,所述基座上设有用于在支撑座转动设定角度后与基座挡止配合的限位结构。使支撑座相对于基座在一定角度的范围内转动。The tenth technical solution of the contact structure of the present invention is: on the basis of the ninth technical solution of the contact structure of the present invention, the base is provided with a device for connecting with the base after the support seat is rotated to a set angle. The limit structure that stops the fit. The support base is rotated within a certain angle range relative to the base.
本发明的触头结构的第十一种技术方案为:在本发明的触头结构的第十种技术方案的基础上,所述基座包括套筒,所述支撑座包括插装在套筒内的基座配合部分和伸出套筒的触头座配合部分,所述支撑座通过基座配合部分与套筒转动配合,所述触头座配合部分靠近套筒的一端为非回转体结构,所述限位结构包括间隔设置在套筒上靠近触头座的一端口沿的两个限位板,触头座配合部分靠近套筒的一端处于在两个限位板之间,所述限位板与基座配合部分在沿套筒轴线方向上挡止配合。通过限位板和触头座配合部分止转配合,结构简单,同时限位板能够限制基座配合部分脱出套筒。The eleventh technical solution of the contact structure of the present invention is: on the basis of the tenth technical solution of the contact structure of the present invention, the base includes a sleeve, and the support seat includes a sleeve inserted into the sleeve. The inner base mating part and the contact seat mating part extending out of the sleeve, the support seat is rotatably matched with the sleeve through the base mating part, and the end of the contact seat mating part close to the sleeve is a non-rotational structure, The limit structure includes two limit plates arranged at intervals on the sleeve near an edge of a port of the contact seat, and one end of the contact seat mating part close to the sleeve is located between the two limit plates, and the limit plate is located between the two limit plates. The matching part of the position plate and the base block in the direction along the axis of the sleeve to stop and cooperate. The structure is simple because the limit plate and the contact seat mating part are rotated and matched, and at the same time, the limit plate can restrict the base mating part from coming out of the sleeve.
本发明的触头结构的第十二种技术方案为:在本发明的触头结构的第十一种技术方案的基础上,所述自复位弹性件为固定在限位板上的板簧,板簧设置在基座与触头座之间。The twelfth technical solution of the contact structure of the present invention is: on the basis of the eleventh technical solution of the contact structure of the present invention, the self-resetting elastic member is a leaf spring fixed on the limit plate, The leaf spring is arranged between the base and the contact seat.
本发明的触头结构的第十三种技术方案为:在本发明的触头结构的第一种至第五种中任意一种技术方案的基础上,所述触头结构为静触头。The thirteenth technical solution of the contact structure of the present invention is: on the basis of any one of the technical solutions of the first to the fifth contact structures of the present invention, the contact structure is a static contact.
为实现上述目的,本发明的开关柜的第一种技术方案为:开关柜包括触头结构和与触头结构适配的适配触头,触头结构包括基座,基座上转动装配有支撑座,支撑座上摆动装配有触头座,触头座上设有用于与适配触头插接配合的插接结构,支撑座相对于基座的转动轴线与触头座相对于支撑座的摆动轴线具有夹角,所述触头座相对于支撑座的摆动轴线与所述插接结构的插接方向有夹角。In order to achieve the above purpose, the first technical solution of the switch cabinet of the present invention is as follows: the switch cabinet includes a contact structure and an adapter contact adapted to the contact structure, the contact structure includes a base, and the base is rotatably assembled with a A support seat, a contact seat is oscillated on the support seat, the contact seat is provided with a plug-in structure for inserting and mating with the matching contact, the rotation axis of the support seat relative to the base and the contact seat relative to the support seat The swing axis of the contact seat has an included angle, and the swing axis of the contact seat relative to the support seat has an included angle with the insertion direction of the insertion structure.
本发明的开关柜的第二种技术方案为:在本发明的开关柜的第一种技术方案的基础上,所述支撑座相对于基座的转动轴线与触头座相对于支撑座的摆动轴线相互垂直,触头座相对于支撑座的摆动轴线与插接结构的插接方向垂直。The second technical solution of the switch cabinet of the present invention is: on the basis of the first technical solution of the switch cabinet of the present invention, the rotation axis of the support seat relative to the base and the swing of the contact seat relative to the support seat The axes are perpendicular to each other, and the swing axis of the contact base relative to the support base is perpendicular to the insertion direction of the insertion structure.
本发明的开关柜的第三种技术方案为:在本发明的开关柜的第一种技术方案的基础上,所述触头座包括支架和摆动装配在支架上的第一夹板、第二夹板,触头座通过支架摆动装配在支撑座上,第一、第二夹板与支撑座导电连接;触头座还包括保持第一夹板和第二夹板相互靠近的弹性保持结构,第一、第二夹板远离支撑座的一端围成所述插接结构。The third technical solution of the switch cabinet of the present invention is as follows: on the basis of the first technical solution of the switch cabinet of the present invention, the contact seat includes a bracket and a first clamp plate and a second clamp plate swinging and assembled on the bracket , the contact seat is assembled on the support seat by swinging the bracket, and the first and second clamping plates are electrically connected to the supporting seat; the contact seat also includes an elastic holding structure that keeps the first clamping plate and the second clamping plate close to each other, One end of the splint away from the support base encloses the plug-in structure.
本发明的开关柜的第四种技术方案为:在本发明的开关柜的第三种技术方案的基础上,所述弹性保持结构包括穿装在第一、第二夹板上的拉杆,拉杆的两端均设有处于第一、第二夹板外侧的弹性保持件,所述第一、第二夹板通过所述弹性保持件保持相互靠近。The fourth technical solution of the switch cabinet of the present invention is: on the basis of the third technical solution of the switch cabinet of the present invention, the elastic holding structure includes a pull rod that is worn on the first and second clamping plates, and the Both ends are provided with elastic holding pieces located outside the first and second clamping plates, and the first and second clamping plates are kept close to each other by the elastic holding pieces.
本发明的开关柜的第五种技术方案为:在本发明的开关柜的第四种技术方案的基础上,所述拉杆上套装有处于第一、第二夹板之间的定位套,第一夹板和第二夹板均通过所述弹性保持件压装在定位套的两端。The fifth technical solution of the switch cabinet of the present invention is: on the basis of the fourth technical solution of the switch cabinet of the present invention, the tie rod is sleeved with a positioning sleeve between the first and second clamping plates, the first Both the splint and the second splint are press-fitted on both ends of the positioning sleeve through the elastic retainer.
本发明的开关柜的第六种技术方案为:在本发明的开关柜的第三或第四或第五种技术方案的基础上,所述插接结构包括分别设置在所述第一夹板和第二夹板上用于与适配触头导电接触的插接触指。The sixth technical solution of the switch cabinet of the present invention is: on the basis of the third or fourth or fifth technical solutions of the switch cabinet of the present invention, the plug-in structure comprises: Plug-in contact fingers on the second clamping plate for conducting conductive contact with the mating contacts.
本发明的开关柜的第七种技术方案为:在本发明的开关柜的第三或第四或第五种技术方案的基础上,所述支撑座包括与触头座配合的触头座配合部分,触头座配合部分夹装在两个夹板之间,第一夹板和第二夹板相对的面上均设有与触头座配合部分导电接触的支撑座触指,所述第一夹板和第二夹板通过支撑座触指与支撑座导电连接。The seventh technical solution of the switch cabinet of the present invention is: on the basis of the third or fourth or fifth technical solutions of the switch cabinet of the present invention, the support seat includes a contact seat mating with the contact seat. part, the mating part of the contact seat is clamped between the two clamping plates, the opposite surfaces of the first clamping plate and the second clamping plate are provided with support base contact fingers which are in conductive contact with the mating part of the contact seat, the first clamping plate and The second splint is electrically connected to the support base through the support base contact fingers.
本发明的开关柜的第八种技术方案为:在本发明的开关柜的第七种技术方案的基础上,所述支架包括平行间隔设置的三个摆动轴,其中处于中间的摆动轴与支撑座摆动配合,处于两边的摆动轴分别与第一、第二夹板摆动配合,支撑座触指处于第一夹板和第二夹板上处于两个摆动轴之间的位置。The eighth technical solution of the switch cabinet of the present invention is: on the basis of the seventh technical solution of the switch cabinet of the present invention, the bracket includes three swing shafts arranged at intervals in parallel, wherein the swing shaft in the middle and the support The seat is in swing fit, the swing shafts on both sides are in swing fit with the first and second splints respectively, and the contact fingers of the support base are located between the two swing axes on the first splint and the second splint.
本发明的开关柜的第九种技术方案为:在本发明的开关柜的第一种至第五种中任意一种技术方案的基础上,所述基座上设有对支撑座施加自复位作用力的自复位弹性件。The ninth technical solution of the switch cabinet of the present invention is: on the basis of any one of the first to fifth technical solutions of the switch cabinet of the present invention, the base is provided with a self-reset force applied to the support seat. Forced self-resetting elastic.
本发明的开关柜的第十种技术方案为:在本发明的开关柜的第九种技术方案的基础上,所述基座上设有用于在支撑座转动设定角度后与基座挡止配合的限位结构。The tenth technical solution of the switchgear of the present invention is: on the basis of the ninth technical solution of the switchgear of the present invention, the base is provided with a structure for blocking the base from the base after the support seat is rotated to a set angle Matching limit structure.
本发明的开关柜的第十一种技术方案为:在本发明的开关柜的第十种技术方案的基础上,所述基座包括套筒,所述支撑座包括插装在套筒内的基座配合部分和伸出套筒的触头座配合部分,所述支撑座通过基座配合部分与套筒转动配合,所述触头座配合部分靠近套筒的一端为非回转体结构,所述限位结构包括间隔设置在套筒上靠近触头座的一端口沿的两个限位板,触头座配合部分靠近套筒的一端处于在两个限位板之间,所述限位板与基座配合部分在沿套筒轴线方向上挡止配合。The eleventh technical solution of the switch cabinet of the present invention is: on the basis of the tenth technical solution of the switch cabinet of the present invention, the base includes a sleeve, and the support seat includes a sleeve inserted in the sleeve. The base mating part and the contact seat mating part protruding from the sleeve, the support seat is rotatably matched with the sleeve through the base mating part, the end of the contact seat mating part close to the sleeve is a non-rotational structure, the The limit structure includes two limit plates arranged at intervals on the sleeve near one port edge of the contact seat, and one end of the contact seat mating part close to the sleeve is located between the two limit plates, the limit plates The mating portion with the base stops the mating in the direction along the axis of the sleeve.
本发明的开关柜的第十二种技术方案为:在本发明的开关柜的第十一种技术方案的基础上,所述自复位弹性件为固定在限位板上的板簧,板簧设置在基座与触头座之间。The twelfth technical solution of the switch cabinet of the present invention is: on the basis of the eleventh technical solution of the switch cabinet of the present invention, the self-resetting elastic member is a leaf spring fixed on the limit plate, and the leaf spring Set between the base and the contact base.
本发明的开关柜的第十三种技术方案为:在本发明的开关柜的第一种至第五种中任意一种技术方案的基础上,所述触头结构为静触头,所述适配触头为动触头。The thirteenth technical solution of the switch cabinet of the present invention is: on the basis of any one of the first to fifth technical solutions of the switch cabinet of the present invention, the contact structure is a static contact, the The mating contacts are moving contacts.
本发明的有益效果为:本发明的触头结构包括基座,基座上转动装配有支撑座,支撑座上摆动装配有触头座,支撑座能够相对于基座转动,与目前的仅仅通过装配在触头座上的弹性触指适配动触头和静触头的配合误差相比,本发明的触头结构的触头座可以通过支撑座相对于基座转动和自身相对于支撑座的摆动适应与适配触头的较大的安装误差,解决了目前的动触头与静触头存在较大的安装误差时无法正常闭合的问题。The beneficial effects of the present invention are as follows: the contact structure of the present invention includes a base, a support seat is rotatably assembled on the base, and a contact seat is oscillated and assembled on the support seat, and the support seat can rotate relative to the base, which is different from the current only Compared with the fitting error of the elastic contact fingers assembled on the contact base to the movable contact and the static contact, the contact base of the contact structure of the present invention can rotate relative to the base through the support base and itself relative to the support base The swing adapts to the larger installation error of the matching contact, which solves the problem that the current movable contact and the static contact cannot be normally closed when there is a larger installation error.
附图说明Description of drawings
图1是本发明的触头结构的具体实施例1的静触头与动触头插接时的状态示意图;FIG. 1 is a schematic diagram of the state of the static contact and the moving contact of the
图2是本发明的触头结构的具体实施例1的静触头与动触头插接时的另一个视角的状态示意图;2 is a state schematic diagram of another perspective when the static contact and the moving contact of the
图3是本发明的触头结构的具体实施例1的基座与支撑座的装配结构示意图;3 is a schematic diagram of the assembly structure of the base and the support seat of the
图4是本发明的触头结构的具体实施例1的支撑座的结构示意图;4 is a schematic structural diagram of the support seat of the
图5是本发明的触头结构的具体实施例1的基座的结构示意图;5 is a schematic structural diagram of the base of the
图6是本发明的触头结构的具体实施例1的两个限位板的状态示意图;Fig. 6 is the state schematic diagram of two limit plates of the
图7是本发明的触头结构的具体实施例1的支撑座与触头座的结构示意图;FIG. 7 is a schematic structural diagram of the support seat and the contact seat in the
图8是本发明的触头结构的具体实施例1的第一夹板结构示意图;8 is a schematic view of the first clamping plate structure of the
图9是本发明的触头结构的具体实施例1的支架的结构示意图;Fig. 9 is the structural schematic diagram of the bracket of the
图10是本发明的触头结构的具体实施例1的静触头与动触头的插接状态示意图;FIG. 10 is a schematic diagram of the plug-in state of the static contact and the moving contact according to the
图11是本发明的触头结构的具体实施例1的动触头的结构示意图;11 is a schematic structural diagram of the movable contact of the
图12是本发明的触头结构的具体实施例1的触头座的剖视图;FIG. 12 is a cross-sectional view of the contact seat of the
图13是本发明的触头结构的具体实施例1的局部结构示意图;13 is a partial structural schematic diagram of the
图14是本发明的触头结构的具体实施例1的板簧的结构示意图;14 is a schematic structural diagram of the leaf spring of the
图15是本发明的触头结构的具体实施例4的触头座的结构示意图;FIG. 15 is a schematic structural diagram of the contact seat of the
图16是本发明的触头结构的具体实施例5的第一夹板与第二夹板的截面示意图;16 is a schematic cross-sectional view of the first clamping plate and the second clamping plate of the specific embodiment 5 of the contact structure of the present invention;
图17是本发明的触头结构的具体实施例6的第一夹板的结构示意图。FIG. 17 is a schematic structural diagram of the first clamping plate of the specific embodiment 6 of the contact structure of the present invention.
具体实施方式Detailed ways
下面结合附图对本发明的实施方式作进一步说明。The embodiments of the present invention will be further described below with reference to the accompanying drawings.
本发明的触头结构的具体实施例1,本实施例中的触头结构为固定在开关柜触头盒内用于与手车适配的静触头。如图1和图2所示,触头结构包括基座1,基座1上转动装配有支撑座2,支撑座2上摆动装配有触头座3。支撑座2相对于基座1的转动轴线与触头座3相对于支撑座2的摆动轴线相互垂直,触头座3相对于支撑座2的摆动轴线与插接结构的插接方向垂直。触头座与支撑座之间导电连接,支撑座与外部的电连接用端部紧固软连接的固定连接方式,其他实施例中,支撑座与外部的电连接也可以通过弹簧触指、表带触指与基座导电连接的方式实现导电。In the
如图3所示,本实施例中,基座1包括套筒11和间隔设置在套筒11上靠近触头座3一端口沿的两个限位板12。两个限位板12通过螺钉可拆固定在套筒11上,套筒11的端部设有套筒固定孔112。限位板12上设有与套筒固定孔对应的限位板固定孔122。As shown in FIG. 3 , in this embodiment, the
如图3和图4所示,支撑座2包括与处于套筒11内的基座1配合的基座配合部分21和伸出套筒11的触头座配合部分22,本实施例中,基座配合部分21为圆柱体结构,基座配合部分21转动装配在套筒11内。触头座配合部分22靠近套筒11的一端的截面为方形,并处于两个限位板12之间,在支撑座2转动一定角度后,触头座配合部分22靠近套筒11的一端与两个限位板12挡止配合,限位板12限制支撑座2的转动范围。其他实施例中,触头座配合部分靠近套筒的一端为其他非回转体结构,触头座配合部分靠近套筒的一端截面可以是椭圆等其他非圆形结构。As shown in FIG. 3 and FIG. 4 , the
如图5所示,套筒11上远离触头座3的一端设有对支撑座2沿套筒11轴向限位的限位凸缘111,限位凸缘111与限位板12配合限制支撑座2离开套筒11。As shown in FIG. 5 , the end of the
如图2和图6所示,限位板12上固定有对支撑座2和触头座3施加自复位作用力的板簧13,板簧13构成基座1上对支撑座2和触头座3施加自复位作用力的自复位弹性件。本实施例中,限位板12上设有固定孔121,板簧13的一端穿过固定孔121压装在限位板12与支撑座2之间,另一端卡接在触头座3上。板簧13设有两个,两个板簧13分别对应设置在两个限位板12上。在触头座3绕基座1摆动后,板簧13发生变形并储能,在动触头4与静触头分离后,在板簧13的作用下,触头座3与支撑座2均复位至原始位置。如图13和图14所示本实施例中的板簧为折弯的弹簧钢,一端折弯压在限位板下与限位板固定;一端折弯搭在触头座上,提供触头座和支撑座的复位力。As shown in FIG. 2 and FIG. 6 , a
本实施例中,如图1、图7和图9所示,触头座3包括支架31,支架31包括平行设置在两个支架板311,两个支架板311之间平行间隔设置第一摆动轴312、第二摆动轴313、第三摆动轴314,第二摆动轴313处于中间,第二摆动轴313与第一摆动轴312、第三摆动轴314的距离相等。三个摆动轴与支架板311之间固定连接,本实施例中,支架板311与三个摆动轴之间为铆接,其他实施例中,支架板311与三个摆动轴之间可以通过螺栓连接。支撑座2的触头座配合部分22套在第二摆动轴313上并与第二摆动轴313摆动配合。第一摆动轴312、第三摆动轴314分别摆动装配有第一夹板32和第二夹板33,触头座配合部分22夹装在两个夹板之间。两个夹板上靠近触头座配合部分22相对的面上均设有支撑座触指34,第一夹板32和第二夹板33均通过支撑座触指34与支撑座2导电连接,本实施例中,支撑座触指34处于第一夹板32和第二夹板33上处于两个摆动轴之间的位置。本实施例中的支撑座触指34选用表带触指,其他实施例中,可以根据需要选用弹簧触指、软连接等导电连接形式。支撑座触指34在装配至夹板上后在第一夹板32、第二夹板33的作用下被预压缩,保证第一夹板32、第二夹板33与支撑座2上触头座3导电接触面积。另外,支撑座2的转动范围由限位板12限制,第一夹板32与第二夹板33上靠近基座1的一端的间距由处于两边的摆动轴限制,第一夹板32与第二夹板33的间距能够限制触头座3的摆动范围。本实施例中的支撑座和触头座均由导电体组成。In this embodiment, as shown in FIG. 1 , FIG. 7 and FIG. 9 , the
如图7所示,支撑座2上用于与支撑座触指34导电接触的部分设有支撑座圆弧面221,支撑座触指34在装配完成后处于压缩工作状态,触头座3在摆动时,支撑座触指34在支撑座圆弧面221上滑动,其压缩量保持不变,保证支撑座2与触头座3之间电连接的稳定性。另外也能够保证支撑座2与触头座3在相对摆动的过程中,支撑座触指34与支撑座2之间的正常滑动,不会造成支撑座触指34或者支撑座2损伤。As shown in FIG. 7 , the part of the
为了能够实现触头座3与动触头4的插接配合,本实施例中,第一夹板32、第二夹板33远离支撑座2的一端围成与动触头4插接配合的插接结构35。第一夹板32、第二夹板33的中间位置穿装有两个拉杆36,两个拉杆36沿垂直于插接结构的插接方向布置,不影响第一夹板32、第二夹板33绕对应摆动轴的摆动。拉杆36的两端均设有处于第一夹板32、第二夹板33相背侧的碟簧37,第一夹板32与第二夹板33在碟簧37的作用下保持相互靠近,同时也提供动触头4与插接结构35之间的触点压力,保证良好的电接触。In order to realize the plug-in cooperation between the
如图12所示,本实施例中,拉杆的一端为带帽圆柱结构,用于安装碟簧,另一端设有垫片,用于对碟簧进行限位。As shown in FIG. 12 , in this embodiment, one end of the tie rod is a cylindrical structure with a cap, which is used for installing the disc spring, and the other end is provided with a gasket, which is used for limiting the disc spring.
本实施例中的碟簧37和拉杆36构成触头座3用于保持第一夹板32和第二夹板33相互靠近的弹性保持结构,其中碟簧37构成处于第一夹板32、第二夹板33外侧的弹性保持件,其他实施例中,弹性保持件还可以是压缩弹簧,或者处于第一夹板与第二夹板之间的拉伸弹簧。In this embodiment, the
拉杆36上套装有处于第一夹板32、第二夹板33之间的定位套38,第一夹板32和第二夹板33均通过碟簧压装在定位套38的两端。保证第一夹板32和第二夹板33上与动触头4插接配合的插接结构35具有合适的大小以供动触头4插入。本实施例中,插接结构35包括分别设置在第一夹板32和第二夹板33上用于与动触头4导电接触的插接触指351,本实施例中的插接触指351选用表带触指。The
本发明的第一夹板32、第二夹板33通过碟簧37保持相互靠近,动触头4插入插接结构35内时,在碟簧37的作用下使插接触指351与动触头4保持稳定的电连接。另外,在拉杆36上设置定位套,可以防止第一夹板32、第二夹板33上远离摆动轴的一端距离过近导致动触头4无法插入的问题,同时也能够避免第一夹板32与第二夹板33上的支撑座触指34与支撑座2上触头座配合部分22之间的作用力过大导致支撑座触指34被损坏。The
第一夹板32与第二夹板33的结构相同,此处仅对第一夹板32的具体结构进行具体描述,如图8所示,第一夹板32上设有背向第二夹板33凸起的凸台321,凸台321上设有用于与摆动轴摆动配合的摆动轴配合孔322,第一夹板32上设有与板簧13配合的板簧卡接面326,板簧卡接面326处于第一夹板32上背向第二夹板33的一侧,且板簧卡接面326处于凸台靠近基座1的一侧。第一夹板32上朝向第二夹板33的一侧设有两个触指安装槽,两个触指安装槽中其中一个为支撑座触指安装槽323,另一个为插接触指安装槽324,第一夹板32上还设有两个供拉杆36穿过的拉杆穿孔325,两个拉杆36穿装在拉杆穿孔325内。The structures of the
本实施例中,如图10和图11所示,与静触头配合的动触头4包括用于与手车连接的手车连接部分41,手车连接部分41呈圆柱体结构。手车连接部分上设有截面为矩形的导电排42,导电排42上远离手车连接部分的一端为与插接结构35插接配合的动触头插接端421,动触头插接端421的端面为长方形,动触头4的插接段具有缩颈结构,保证动触头4与静触头插合过程中避让触头座3,为触头座3提供更大的摆动空间。In this embodiment, as shown in FIGS. 10 and 11 , the
本发明的触头结构的支撑座2能够相对于基座1转动,触头座3又能够相对于支撑座2摆动,使触头结构构成万向触头,在使用的过程中,手车与开关柜柜体之间或者动触头与静触头之间存在配合误差时,动触头4首先与静触头上的插接结构35预对准,随着动触头4的不断插入,静触头能够自适应动触头4的位置,保证静触头与动触头4的正常插合。通过夹板式的触头座3结构,保证动触头4与静触头的电连接稳定性。The
本发明的触头结构的具体实施例2,本实施例中的触头结构与上述触头结构的具体实施例中所述的区别仅在于:直接在触头座的第一夹板和第二夹板上直接加工触指,此时相对于安装表带触指来说增加了成本,也没有表带触指结构的稳定,但是导电性能更好。In the
本发明的触头结构的具体实施例3,本实施例中的触头结构与上述触头结构的具体实施例中所述的区别仅在于:本实施例中的不设置限位板,支撑座可以绕转动轴线360度旋转。In the
本发明的触头结构的具体实施例4,本实施例中的触头结构与上述触头结构的具体实施例中所述的区别仅在于:如图15所示,触头座403采用圆筒状结构,触头座包括筒体和设置在筒体内的插接触指4351,筒体的一端设有用于摆动装配在支撑座上的安装孔4031,另一端设有供动触头插入的插接结构435。In the
本发明的触头结构的具体实施例5,本实施例中的触头结构与上述触头结构的具体实施例中所述的区别仅在于:如图16所示,本实施例中,第一夹板532与第二夹板533可以是曲面板,曲面板垂直于插接方向弯曲。弯曲的曲面板围成近似圆形的插接结构。In the specific embodiment 5 of the contact structure of the present invention, the difference between the contact structure in this embodiment and the specific embodiments of the above-mentioned contact structure is only that: as shown in FIG. 16 , in this embodiment, the first The clamping
本发明的鸭嘴式触头的具体实施例6,本实施例中的鸭嘴式触头与上述鸭嘴式触头的具体实施例1中所述的区别仅在于:与上述具体实施例1中采用一体式的夹板不同的是,如图17所示,本实施例中第一夹板432和第二夹板均由导电触指片4321叠成,此时不需要设置支座触值和插接触值。In the specific embodiment 6 of the duckbill contact of the present invention, the duckbill contact in this embodiment is different from the
本发明的开关柜的具体实施例,开关柜包括柜体,柜体内设有触头盒,触头盒内固定有静触头,柜体内还设有断路器手车,断路器手车上设有与静触头匹配的动触头,本实施例中的动触头和静触头的结构与上述触头结构的具体实施例1-5任一个实施例中所述的动触头和静触头的结构相同,不再赘述。In a specific embodiment of the switch cabinet of the present invention, the switch cabinet includes a cabinet body, a contact box is arranged in the cabinet, a static contact is fixed in the contact box, a circuit breaker trolley is also arranged in the cabinet, and the circuit breaker trolley is provided with There is a moving contact matched with the static contact, and the structure of the moving contact and the static contact in this embodiment is the same as the moving contact and static contact described in any one of the specific embodiments 1-5 of the above-mentioned contact structure. The structures of the contacts are the same and will not be repeated here.
本发明的触头结构及使用该触头结构的开关柜的其他实施例中,上述触头结构还可以是动触头;支撑座相对于基座的转动轴线与触头座相对于支撑座的摆动轴线的夹角可以是0度至90度之间的任意角度,触头座相对于支撑座的摆动轴线与插接结构的插接方向的夹角可以是0度至90度之间的任意角度。In the contact structure of the present invention and other embodiments of the switch cabinet using the contact structure, the above-mentioned contact structure may also be a movable contact; the rotation axis of the support seat relative to the base and the rotation axis of the contact seat relative to the support seat The included angle of the swing axis can be any angle between 0 degrees and 90 degrees, and the included angle between the swing axis of the contact seat relative to the support seat and the insertion direction of the insertion structure can be any angle between 0 degrees and 90 degrees. angle.
上述支撑座上的触头座配合部分与触头座之间还可以通过软连接实现导电连接,此时三个摆动轴可以呈三角形布置。A conductive connection can also be achieved between the contact seat mating portion on the above-mentioned support seat and the contact seat through a soft connection, and the three swing shafts can be arranged in a triangular shape.
上述定位套可以不设,在两个夹板相对的面上分别设置相互抵接的凸起,保证夹板围成的插接结构与动触头能够适配。The above-mentioned positioning sleeves may not be provided, and protrusions abutting against each other are respectively provided on the opposite surfaces of the two clamping plates, so as to ensure that the plug-in structure enclosed by the clamping plates can be adapted to the movable contact.
Claims (20)
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CN110277744B (en) * | 2019-06-21 | 2021-02-05 | 许继电气股份有限公司 | Contact device of handcart circuit breaker and handcart circuit breaker |
CN112614754B (en) * | 2020-12-10 | 2023-04-07 | 平高集团有限公司 | Handcart type direct current circuit breaker and connecting contact thereof |
Citations (3)
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CN102118009A (en) * | 2010-01-05 | 2011-07-06 | 北京人民电器厂有限公司 | Electric connection mechanism used for plug-in circuit breaker |
CN202759181U (en) * | 2012-07-16 | 2013-02-27 | 镇江大全伊顿电器有限公司 | Duckbilled moving contact |
CN206179758U (en) * | 2016-11-24 | 2017-05-17 | 江西省拓网电气有限公司 | But wobbling isolation switch structure |
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US4025747A (en) * | 1975-09-11 | 1977-05-24 | Westinghouse Electric Corporation | Circuit interrupter stab assembly with self-aligning clip type contact |
CN201556872U (en) * | 2009-10-19 | 2010-08-18 | 奉化市泰峰电气科技有限公司 | Distribution cabinet primary contact plate |
CN205050714U (en) * | 2015-09-29 | 2016-02-24 | 西门子公司 | Cubical switchboard and bus -bar room and moving contact thereof |
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CN102118009A (en) * | 2010-01-05 | 2011-07-06 | 北京人民电器厂有限公司 | Electric connection mechanism used for plug-in circuit breaker |
CN202759181U (en) * | 2012-07-16 | 2013-02-27 | 镇江大全伊顿电器有限公司 | Duckbilled moving contact |
CN206179758U (en) * | 2016-11-24 | 2017-05-17 | 江西省拓网电气有限公司 | But wobbling isolation switch structure |
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