CN214226757U - Moving contact system of automatic change-over switch - Google Patents
Moving contact system of automatic change-over switch Download PDFInfo
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- CN214226757U CN214226757U CN202023145784.7U CN202023145784U CN214226757U CN 214226757 U CN214226757 U CN 214226757U CN 202023145784 U CN202023145784 U CN 202023145784U CN 214226757 U CN214226757 U CN 214226757U
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- contact
- contact system
- moving contact
- over switch
- automatic change
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Abstract
The utility model provides an automatic change over switch's moving contact system, it includes contact support (1), contact system (2) and pressure spring (3), is equipped with a plurality of recesses (101) that are arranged in holding contact system (2) and a plurality of moving contact pieces (201) that establish side by side on contact support (1), and pressure spring (3) one end supports the medial surface of moving contact piece (201), the other end supports recess (101) bottom, its characterized in that: reinforcing ribs (102) are arranged on the contact support (1) and positioned at corresponding positions on the outer sides of two ends of the plurality of movable contact pieces (201) which are arranged side by side for preventing the movable contact pieces (201) from laterally deviating, and airflow grooves (103) are arranged on the outer sides of the reinforcing ribs (102). Through the improvement to current moving contact system structure, satisfy automatic change over switch working property up to standard when little rated current, practice thrift the cost, reduced the assembly maintenance degree of difficulty.
Description
Technical Field
The utility model belongs to the technical field of the switch, specifically say so and relate to an automatic change over switch's moving contact system.
Background
With the development of society, people's requirements for power grids and power transmission and distribution processes thereof are gradually improved, mainly in the aspects of safety, reliability, continuity, easy overhaul and maintenance and the like of power supply equipment, and thus, automatic transfer switches with the typical characteristics are more and more widely applied. The automatic change-over switch is mainly used for the work occasion of low-voltage power distribution system by two way power supplies power supply, and its function is when the power of normal power supply goes wrong and trouble, and it is automatic to be converted into stand-by power supply by main power source power supply to the transmission and distribution lines to realize the uninterrupted power supply of whole circuit, thereby guarantee continuation, the stability requirement of key load power consumption.
Important indexes of the automatic change-over switch comprise short-circuit connection and disconnection capacities; as an important component of an automatic transfer switch, a contact system has a close relationship with the short-circuit on/off capability of the automatic transfer switch, and carries the on-current of a circuit and an arc at the time of disconnection. The contact of the traditional automatic change-over switch is connected with a main shaft cantilever of an operating mechanism through a connecting rod, and the contact moves in the closing and opening processes of the operating mechanism, so that the on-off action of the automatic change-over switch is completed. However, when the traditional automatic transfer switch contact system is used in a product with small rated working current, the movable silver point, the movable contact piece and the soft coupling material are more, the number of parts is more, the assembly process is complicated, and the cost is high; if the number of the movable contact pieces is reduced and the movable contact is suitable for different scenes, the original contact support cannot be directly utilized and is required to be manufactured again, so that the cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an aim at is exactly to the defect that above-mentioned current automatic change over switch contact system exists, provides an automatic change over switch's moving contact system, through the improvement to current moving contact system structure, satisfies automatic change over switch working property up to standard when little rated current, practices thrift the cost, has reduced the assembly maintenance degree of difficulty.
Technical scheme
In order to realize above-mentioned technical purpose, the utility model provides a pair of automatic change over switch's moving contact system, it includes the contact support, contact system and pressure spring are equipped with a plurality of recesses that are arranged in holding contact system and establish a plurality of movable contact spring side by side on the contact support, and pressure spring one end supports the medial surface of movable contact spring, the other end support recess bottom, its characterized in that: reinforcing ribs are arranged at corresponding positions on the outer sides of two ends of the plurality of movable contact pieces arranged side by side on the contact support and used for preventing the movable contact pieces from generating lateral deviation, and airflow grooves are arranged on the outer sides of the reinforcing ribs.
Further, the air flow groove is formed by one side wall of the reinforcing rib and the inner side wall of the corresponding contact support.
Furthermore, the concave parts are separated by a plurality of clapboards, and the airflow groove is formed by a thickened side wall of the clapboard at the corresponding position outside the two ends of the movable contact pieces and the corresponding inner side wall of the contact support.
Further, a thickened thickness of the baffle plate is smaller than the width of the groove.
Advantageous effects
The utility model provides a pair of automatic change over switch's moving contact system makes the part quantity that the moving contact system assembly used minimum, and the cost is optimum to effectively prevent that the moving contact subassembly from taking place the whole temperature rise of lopsidedness and reduction product, satisfy automatic change over switch working property up to standard when little rated current, the contact support mould that has realized heavy current and low current is general, avoids the contact support under the different rated current circumstances to open the mould again, reduction in production cost.
Drawings
Fig. 1 is a schematic view of a moving contact system in embodiment 1 of the present invention;
FIG. 2 is a schematic view of a contact system according to embodiment 1 of the present invention;
fig. 3a is a perspective view of a contact support according to embodiment 1 of the present invention;
fig. 3b is a front view of a contact support according to embodiment 1 of the present invention;
fig. 4a is a perspective view of a contact support according to embodiment 2 of the present invention;
fig. 4b is a front view of a contact support according to embodiment 2 of the present invention;
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, 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 work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Example 1
As shown in fig. 1, 2 and 3, the movable contact system of an automatic transfer switch provided in this embodiment includes a contact support 1, a contact system 2 and a pressure spring 3, the contact support 1 is provided with a plurality of grooves 101 for accommodating a plurality of movable contacts 201 arranged side by side in the contact system 2, one end of the pressure spring 3 abuts against an inner side surface of the movable contact 201, and the other end abuts against the bottom of the groove 101, reinforcing ribs 102 are provided at corresponding positions on the outer sides of two ends of the plurality of movable contacts 201 arranged side by side on the contact support 1 for preventing the movable contact 201 from deviating laterally, and airflow grooves 103 are provided on the outer sides of the reinforcing ribs 102 for providing a convection channel for the upper and lower temperature difference convection of the contact system 03, thereby effectively reducing the overall temperature rise of the product.
The air flow groove 103 in this embodiment is formed by a side wall of the reinforcing rib 102 and an inner side wall 105 of the corresponding contact support 1.
Example 2
In this embodiment, the grooves 101 are separated by a plurality of partitions 104, and the airflow slot 103 is formed by a thickened sidewall of a partition 104a at a corresponding position outside two ends of the movable contact 201 and a corresponding inner sidewall 105 of the contact support 1. The thickened thickness of the first clapboard 104a is smaller than the width of the groove 101.
The utility model provides a pair of automatic change over switch's moving contact system makes the part quantity that the moving contact system assembly used minimum, and the cost is optimum to effectively prevent that the moving contact subassembly from taking place the whole temperature rise of lopsidedness and reduction product, satisfy automatic change over switch working property up to standard when little rated current, the contact support mould that has realized heavy current and low current is general, avoids the contact support under the different rated current circumstances to open the mould again, reduction in production cost.
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; while the present invention has been described in detail with reference to the foregoing embodiments, it will 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 (4)
1. The utility model provides an automatic change over switch's moving contact system, it includes contact support (1), contact system (2) and pressure spring (3), is equipped with a plurality of recesses (101) that are arranged in holding contact system (2) and a plurality of moving contact pieces (201) that establish side by side on contact support (1), and pressure spring (3) one end supports the medial surface of moving contact piece (201), the other end supports recess (101) bottom, its characterized in that: reinforcing ribs (102) are arranged on the contact support (1) and positioned at corresponding positions on the outer sides of two ends of the plurality of movable contact pieces (201) which are arranged side by side for preventing the movable contact pieces (201) from laterally deviating, and airflow grooves (103) are arranged on the outer sides of the reinforcing ribs (102).
2. A movable contact system of an automatic transfer switch as claimed in claim 1, characterized in that: the airflow groove (103) is formed by one side wall of the reinforcing rib (102) and the corresponding inner side wall (105) of the contact support (1).
3. A movable contact system of an automatic transfer switch as claimed in claim 1, characterized in that: the grooves (101) are separated by a plurality of clapboards (104), and the airflow groove (103) is formed by a thickened side wall of a clapboard I (104a) at the corresponding position of the outer sides of two ends of a plurality of movable contact pieces (201) and a corresponding inner side wall (105) of the contact support (1).
4. A movable contact system of an automatic transfer switch as claimed in claim 3, characterized in that: the thickened thickness of the first clapboard (104a) is smaller than the width of the groove (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023145784.7U CN214226757U (en) | 2020-12-23 | 2020-12-23 | Moving contact system of automatic change-over switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023145784.7U CN214226757U (en) | 2020-12-23 | 2020-12-23 | Moving contact system of automatic change-over switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214226757U true CN214226757U (en) | 2021-09-17 |
Family
ID=77704736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023145784.7U Active CN214226757U (en) | 2020-12-23 | 2020-12-23 | Moving contact system of automatic change-over switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214226757U (en) |
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2020
- 2020-12-23 CN CN202023145784.7U patent/CN214226757U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221206 Address after: 314304 No. 1768, Binhai Avenue, Xitangqiao Street, Haiyan County, Jiaxing City, Zhejiang Province Patentee after: Liangxin Electrical Appliances (Haiyan) Co.,Ltd. Patentee after: Shanghai Liangxin Electrical Co.,Ltd. Address before: No. 2000, Shenjiang South Road, Pudong New Area, Shanghai, 201315 Patentee before: Shanghai Liangxin Electrical Co.,Ltd. |