Isolating switch for outdoor power distribution equipment
By introducing protection components and give way components into the isolation switch for outdoor power distribution equipment, sealing protection of contact fingers and contacts is achieved, solving the problem of shortening service life, and improving the equipment through metal shavings Safety and durability.
Patent Information
- Application Number
- CN202422866136.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Existing outdoor power distribution equipment isolating switches exposed to the air when the contact finger is disconnected from the contact, which is susceptible to environmental factors, resulting in a shortened service life.
A disconnector for outdoor power distribution equipment including protective components and give way components is designed, and the contact fingers and contacts are realized through a combined structure of insulating columns, extrusion wheels, oblique cutouts, protective shells, springs and sealed ceilings. The sealing protection extends its service life and improves the safety of the equipment through metal flakes.
It effectively extends the service life of the contact fingers and contacts, improves the durability and safety of the equipment, prevents damage during arcing, and enhances the adaptability to the environment.
Smart Images
Figure CN222233512U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of outdoor power distribution equipment, in particular to an isolating switch for outdoor power distribution equipment. Background Art
[0002] Outdoor power distribution equipment refers to equipment used in power systems, especially in distribution networks, for the distribution, protection, monitoring and control of electric energy. This type of equipment is usually installed outdoors and exposed to the external environment. Therefore, it needs to be designed with strong resistance to climate change, corrosion resistance, waterproof and dustproof characteristics. In order to ensure the safe operation and maintenance of power equipment, outdoor power distribution equipment will be equipped with isolation switches for use.
[0003] There are many types of isolating switches for outdoor power distribution equipment, including horizontal rotary isolating switches that realize opening and closing functions through power control. When the contact fingers are disconnected from the contacts during use, they are often exposed to the air without any protective mechanism and are easily affected by various factors in the environment, resulting in a shortened service life. To this end, we provide an isolating switch for outdoor power distribution equipment to solve the above problems. Utility Model Content
[0004] The utility model aims to provide an isolating switch for outdoor power distribution equipment, which solves the problem of shortened service life of the contact finger contacts exposed to the air after breaking contact in the prior art through the cooperation of the protection component and the giving way component.
[0005] In order to solve the above technical problems, the utility model is implemented through the following technical solutions.
[0006] The utility model discloses an isolating switch for outdoor power distribution equipment, comprising a mounting frame, wherein an insulating column is movably connected to the top of the mounting frame, a contact finger is arranged on the top of the mounting frame, and a contact is arranged on one side of the contact finger; a protection component is arranged on the top of the mounting frame, wherein the protection component comprises a protection shell, wherein the protection shell is located at the back of the insulating column, and a chamfered block is arranged on one side of the protection shell; an extrusion wheel is arranged on the top of the mounting frame, and a yielding component is arranged at the bottom of the protection shell; the yielding component comprises a box body, wherein the box body is located at the top of the mounting frame, a spring is fixedly connected to the bottom of the box body, and a movable plate is fixedly connected to the top of the spring; an arc extinguishing component is arranged on one side of the contact finger, wherein the arc extinguishing component comprises an insulating shell, wherein the insulating shell is located at one side of the contact, and a metal coral is fixedly connected to one side of the inner side of the insulating shell, and the arc extinguishing component is used for cooling and extinguishing the arc.
[0007] The utility model is further configured such that the protection component also includes a first sealing top cover, the first sealing top cover is located on the top of the mounting frame, a baffle is provided on one side of the first sealing top cover, a second sealing top cover is provided on one side of the first sealing top cover, a support rod is fixedly connected to the back side of the second sealing top cover, and the bottom of the support rod is fixedly connected to the mounting frame.
[0008] The utility model is further configured that the yielding component also includes a movable rod, the movable rod is located at the top of the spring, the bottom of the movable rod is fixedly connected to the movable plate, the top of the movable rod passes through the box body and is fixedly connected to the protective shell, and one side of the movable rod is fixedly connected to a connecting rod.
[0009] The utility model is further configured that one side of the movable plate is fixedly connected with a sliding block, and the sliding block is slidably connected to one side of the interior of the box body.
[0010] The utility model is further configured such that the bottom of the first sealing top cover is fixedly connected to the contact finger, and one side of the first sealing top cover is in contact with the baffle.
[0011] The utility model is further configured that a mounting hole is provided on the top of the mounting frame, and the contacts and contact fingers are fixedly connected to the insulating column.
[0012] The utility model is further configured that a bottom plate is fixedly connected to the bottom of the mounting frame, and the contact head is in contact with the contact finger.
[0013] The utility model is further configured that a conductive sheet is fixedly connected to the top of the insulating column, and a connecting hole is opened on one side of the conductive sheet.
[0014] The utility model has the following beneficial effects.
[0015] The utility model drives the insulating column to rotate and drives the contact finger and the contact to rotate at the same time. As the contact finger turns to the protective shell, the extrusion wheel contacts the bevel block and squeezes the bevel block to move downward, and at the same time drives the protective shell at the contact position to move downward through the connecting rod. The protective shell moves downward and compresses the spring through the movable rod and the movable plate. When the contact finger and the contact are completely entered into the protective shell, the insulating column rotates ninety degrees at this time, the bevel block is no longer squeezed, and the spring drives the protective shell to move upward, and forms a sealed protection box for protecting the contact finger through the baffle plate, the first sealing top cover and the protective shell. At the same time, a sealed protection box for protecting the contact is formed through the baffle plate, the second sealing top cover and the protective shell, so as to protect the key parts of the contact finger and the contact and extend their service life.
[0016] The utility model can increase the contact area of the arc and promote the dispersion and disconnection of the arc when the contact fingers and contacts break contact or generate an arc, and quickly cool the arc by setting the metal coral sheet, so as to achieve the purpose of arc extinguishing and improve the safety of the entire equipment when in use. By setting the conductive sheet, it is convenient for users to connect the connecting wires. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.
[0018] Figure 1 The present invention is a three-dimensional diagram of an isolating switch for outdoor power distribution equipment.
[0019] Figure 2 The diagram is a contact breaking protection diagram of the contact fingers and contacts in an isolating switch for outdoor power distribution equipment.
[0020] Figure 3 This is a structural explosion diagram of the contact finger part of an isolating switch for outdoor power distribution equipment.
[0021] Figure 4 The present invention is a right side cross-sectional view of a box body of an isolating switch for outdoor power distribution equipment.
[0022] Figure 5 The figure is a top view of an isolating switch for outdoor power distribution equipment.
[0023] Figure 6 It is an isolating switch for outdoor power distribution equipment. Figure 1 A magnified view of the local structure at point A.
[0024] In the attached figure: 1. mounting frame; 2. insulating column; 3. contact finger; 4. contact; 5. protective shell; 6. bevel block; 7. extrusion wheel; 8. box body; 9. spring; 10. movable plate; 11. insulating shell; 12. metal coral sheet; 13. first sealing top cover; 14. baffle; 15. second sealing top cover; 16. support rod; 17. movable rod; 18. connecting rod; 19. bottom plate; 20. conductive sheet. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0026] For example, see Figure 1-6The utility model is an isolating switch for outdoor power distribution equipment, comprising a mounting frame 1, an insulating column 2 is movably connected to the top of the mounting frame 1, a contact finger 3 is arranged on the top of the mounting frame 1, and a contact 4 is arranged on one side of the contact finger 3; a protection component is arranged on the top of the mounting frame 1, and the protection component comprises a protection shell 5, the protection shell 5 is located on the back of the insulating column 2, and a chamfered block 6 is arranged on one side of the protection shell 5, an extrusion wheel 7 is arranged on the top of the mounting frame 1, and a yielding component is arranged at the bottom of the protection shell 5, and the yielding component comprises a box body 8, the box body 8 is located on the top of the mounting frame 1, a spring 9 is fixedly connected to the bottom of the box body 8, and a movable plate 10 is fixedly connected to the top of the spring 9; an arc extinguishing component is arranged on one side of the contact finger 3, and the arc extinguishing component comprises an insulating shell 11, the insulating shell 11 is located on one side of the contact 4, and a metal coral sheet 12 is fixedly connected to one side of the insulating shell 11, and the arc extinguishing component is used for cooling and extinguishing the arc.
[0027] Specifically: The horizontal rotary isolating switch is a common high-voltage isolating switch, which is mainly used to isolate and connect circuits in power systems. It is based on mechanical rotation and uses components such as rotating shafts, gears and transmission systems to complete the rotation action to disconnect or connect the circuit. It is a known existing mature technology. There are two bevel blocks 6, which are respectively fixed to the inside and outside of the left protective shell 5, which can ensure that the contact finger 3 can normally enter and exit the protective shell 5 when it rotates. The top of the extrusion wheel 7 is fixedly connected to the first sealing top cover 13, the bottom of the box body 8 is fixedly connected to the mounting frame 1, and the insulating shell 11 is fixedly connected to the contact finger 3.
[0028] For example 2, please refer to Figure 1-6 On the basis of the first embodiment, the protection component further includes a first sealing top cover 13, the first sealing top cover 13 is located at the top of the mounting frame 1, a baffle 14 is arranged on one side of the first sealing top cover 13, a second sealing top cover 15 is arranged on one side of the first sealing top cover 13, a support rod 16 is fixedly connected to the back of the second sealing top cover 15, and the bottom of the support rod 16 is fixedly connected to the mounting frame 1, and the yielding component further includes a movable rod 17, the movable rod 17 is located at the top of the spring 9, the bottom of the movable rod 17 is fixedly connected to the movable plate 10, and the top of the movable rod 17 passes through the box body 8 and is connected to the protective shell 5 Fixed connection, one side of the movable rod 17 is fixedly connected to a connecting rod 18, one side of the movable plate 10 is fixedly connected to a slider, the slider is slidably connected to one side of the inside of the box body 8, the bottom of the first sealing top cover 13 is fixedly connected to the contact finger 3, one side of the first sealing top cover 13 is in contact with the baffle 14, a mounting hole is provided on the top of the mounting frame 1, the contact 4 and the contact finger 3 are fixedly connected to the insulating column 2, the bottom of the mounting frame 1 is fixedly connected to a bottom plate 19, the contact 4 is in contact with the contact finger 3, the top of the insulating column 2 is fixedly connected to a conductive sheet 20, and a connecting hole is provided on one side of the conductive sheet 20.
[0029] Specifically: there are two baffles 14, which are fixedly connected to the surfaces of the contact finger 3 and the contact 4 respectively; a through hole compatible with the movable rod 17 is opened on the top of the box body 8 to ensure that it can move up and down normally; one side of the connecting rod 18 is fixedly connected to the protective shell 5 to ensure that when the protective shell 5 at the contact finger 3 moves downward, the protective shell 5 at the contact 4 is also driven to move downward; a sliding groove compatible with the slider is opened on one side of the inside of the box body 8 to limit the movable plate 10.
[0030] The working principle of the utility model is as follows: when the disconnector needs to be disconnected, the mechanical drive insulating column 2 rotates to drive the contact finger 3 and the contact 4 to rotate at the same time to disconnect the contact. As the contact finger 3 rotates continuously, the extrusion wheel 7 comes into contact with the bevel block 6 and squeezes the bevel block 6 to move downward, so as to drive the protective shell 5 at the contact finger 3 to move downward, making way for the contact finger 3 so that it can be normally transferred into the protective shell 5. The downward movement of the protective shell 5 will drive the protective shell 5 at the contact finger 3 to move downward through the movable rod 17 and the connecting rod 18, so that the contact finger 3 can be normally transferred into the protective shell 5. At the same time, through the movable rod 17 and the connecting rod 18, the movable rod 17 and the connecting rod 18 are used to connect the contact finger 3 and the contact 3. The plate 10 compresses the spring 9. When the contact finger 3 and the contact head 4 rotate ninety degrees, the extrusion wheel 7 is no longer in contact with the bevel block 6. The spring 9 drives the protective shell 5 to move upward. The baffle plate 14, the first sealing top cover 13 and the protective shell 5 form a sealed protection box for protecting the contact finger 3. Under the driving action of the movable rod 17 and the connecting rod 18, the protective shell 5 at the contact finger 3 moves upward at the same time and forms a sealed protection box for protecting the contact head 4 through the baffle plate 14, the second sealing top cover 15 and the protective shell 5, so as to protect the key parts of the contact finger 3 and the contact head 4 and extend their service life.
[0031] An arc is generated during the contact breaking process, and the generated arc is divided by the metal coral sheet 12, thereby achieving a good arc extinguishing purpose and ensuring the safety of the entire equipment.
[0032] The standard parts used in the present invention can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatically controlled by a control unit. The control circuit of the control unit can be realized by simple programming by technicians in this field, which belongs to the common knowledge in this field. Therefore, the control method and circuit connection are no longer explained in detail in the present invention.
[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model.
Claims
1. An isolating switch for outdoor power distribution equipment, comprising a mounting frame (1), characterized in that: An insulating column (2) is movably connected to the top of the mounting frame (1), a contact finger (3) is arranged on the top of the mounting frame (1), and a contact head (4) is arranged on one side of the contact finger (3); A protective component is arranged at the top of the mounting frame (1), the protective component comprising a protective shell (5), the protective shell (5) being located at the back of the insulating column (2), a bevel block (6) being arranged on one side of the protective shell (5), an extrusion wheel (7) being arranged at the top of the mounting frame (1), a clearance component being arranged at the bottom of the protective shell (5), the clearance component comprising a box body (8), the box body (8) being located at the top of the mounting frame (1), a spring (9) being fixedly connected to the bottom of the box body (8), and a movable plate (10) being fixedly connected to the top of the spring (9); An arc extinguishing assembly is provided on one side of the contact finger (3), the arc extinguishing assembly comprising an insulating shell (11), the insulating shell (11) being located on one side of the contact (4), a metal coral sheet (12) being fixedly connected to one side of the interior of the insulating shell (11), and the arc extinguishing assembly is used for cooling and extinguishing an arc.
2. The isolating switch for outdoor power distribution equipment according to claim 1, characterized in that: The protection assembly further comprises a first sealing top cover (13), the first sealing top cover (13) being located on the top of the mounting frame (1), a baffle (14) being provided on one side of the first sealing top cover (13), a second sealing top cover (15) being provided on one side of the first sealing top cover (13), a support rod (16) being fixedly connected to the back of the second sealing top cover (15), and a bottom of the support rod (16) being fixedly connected to the mounting frame (1).
3. The isolating switch for outdoor power distribution equipment according to claim 1, characterized in that: The yielding assembly further comprises a movable rod (17), wherein the movable rod (17) is located at the top of the spring (9), the bottom of the movable rod (17) is fixedly connected to the movable plate (10), the top of the movable rod (17) passes through the box body (8) and is fixedly connected to the protective shell (5), and one side of the movable rod (17) is fixedly connected to a connecting rod (18).
4. The isolating switch for outdoor power distribution equipment according to claim 1, characterized in that: A sliding block is fixedly connected to one side of the movable plate (10), and the sliding block is slidably connected to one side of the interior of the box body (8).
5. The isolating switch for outdoor power distribution equipment according to claim 2, characterized in that: The bottom of the first sealing top cover (13) is fixedly connected to the contact finger (3), and one side of the first sealing top cover (13) is in contact with the baffle (14).
6. The isolating switch for outdoor power distribution equipment according to claim 1, characterized in that: A mounting hole is provided on the top of the mounting frame (1), and the contact (4) and the contact finger (3) are fixedly connected to the insulating column (2).
7. The isolating switch for outdoor power distribution equipment according to claim 1, characterized in that: A bottom plate (19) is fixedly connected to the bottom of the mounting frame (1), and the contact (4) is in contact with the contact finger (3).
8. The isolating switch for outdoor power distribution equipment according to claim 1, characterized in that: A conductive sheet (20) is fixedly connected to the top of the insulating column (2), and a connection hole is provided on one side of the conductive sheet (20).