Sliding contact type auxiliary switch capable of satisfying multi-angle magnetic quenching function
The slide-type auxiliary switch addresses the challenge of balancing capacity and angular versatility by employing a magnetic arc suppression mechanism, achieving improved performance and reliability through flexible angular designs.
Patent Information
- Application Number
- CN202422523635.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-18
AI Technical Summary
Existing sliding-touch auxiliary switches cannot meet the needs of multi-angle design and large-break capacity at the same time, resulting in high costs and high failure rates.
The design of multiple accumulated stacked substrate units is adopted, combining magnetic blocks and magnetic field modules, and multi-angle breaking is achieved through the magnetic blowing and arc extinguishing function, and the breaking capacity is increased under the insulation gap.
It improves the switch's breaking capacity, and the flexible and variable angle design meets various needs, reducing the risk that the arc cannot be covered by the magnetic field, and improving product reliability.
Smart Images
Figure CN223108725U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electrical switches, and particularly relates to a sliding contact type auxiliary switch that can meet the multi-angle magnetic blow arc extinguishing function. Background Technique
[0002] An auxiliary switch is a non-manual operating device, which is suitable for controlling the closing, opening, interlocking, and signal circuits of various high-voltage switch operating mechanisms. It adopts a modular structure, that is, the number of switch switching levels (number of contact pairs) can be selected by the customer according to needs. The driving shaft of the auxiliary switch can rotate 360°, and the action angle of the driving shaft and the opening angle of the contacts are determined by the customer's mechanism. Among them, the sliding contact type auxiliary switch is characterized by angle diversity, self-cleaning function, and stable structure.
[0003] With the development, the requirements for the breaking capacity of the sliding contact type auxiliary switch are getting higher and higher. Many projects specify the requirements as multiple special angles + large breaking capacity. However, the existing structure of the sliding contact type auxiliary switch cannot achieve both, and can only increase the capacity at a certain fixed angle and cannot meet the angle diversity; or can meet the angle diversity but cannot increase the capacity. Therefore, finally, only the combination of other electrical appliances can be selected to replace it, resulting in high cost and high failure rate. Content of the Utility Model
[0004] The utility model aims at the above problems, makes up for the deficiencies of the prior art, and provides a sliding contact type auxiliary switch that can meet the multi-angle magnetic blow arc extinguishing function; the utility model can increase the breaking capacity of the switch, and on the premise of meeting the insulation gap, can be designed at multiple angles to meet various design requirements.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions.
[0006] The utility model provides a sliding contact type auxiliary switch capable of meeting the multi-angle magnetic blow arc extinguishing function, which comprises a main body part. The main body part comprises a plurality of substrate units with the same cumulative stacking structure. A rear end cover is arranged at the rear side of the main body part, and a front end cover is arranged at the front side of the main body part. The front end cover, the main body part and the rear end cover are simultaneously connected together by connecting rods and fasteners. A driving square shaft passes through the front end cover, the main body part and the rear end cover at the same time. It is characterized in that the substrate unit comprises a substrate, a fixed contact piece, a moving contact piece and a magnetic block. All the substrates are connected together by the connecting rods and the fasteners. A square shaft sleeve is sleeved on the driving square shaft corresponding to the main body part. The moving contact piece is arranged in the middle of the substrate. The moving contact piece passes through the square shaft sleeve through a square hole in the middle and can rotate simultaneously with the driving square shaft. Concave contacts are arranged above and below the moving contact piece. The fixed contact pieces are uniformly arranged at the upper left, upper right, lower left and lower right parts of the substrate. An arc-shaped piece is arranged on the fixed contact piece close to the center side of the substrate. The concave contact can clamp the arc-shaped piece in the middle. The two arc-shaped pieces on the upper side are symmetrical along the vertical center line of the substrate, and the designed included angle between adjacent ends is not greater than 90°. The two arc-shaped pieces on the lower side are symmetrical along the vertical center line of the substrate, and the designed included angle between adjacent ends is not greater than 90°. Magnetic blocks are arranged on both the upper and lower sides of the substrate.
[0007] Further, the magnetic blocks are all arc-shaped, and the radian of the magnetic blocks is not less than the angle of the designed included angle.
[0008] Further, rotatably arranged in the middle of the front end cover and the rear end cover are cover shaft sleeves with a square inside and a round outside, and the driving square shaft correspondingly passes through the middle of the cover shaft sleeves.
[0009] Further, a pointer block is sleeved on the driving square shaft at the front side of the front end cover.
[0010] The beneficial effects of the utility model.
[0011] Through the special magnetic field module and the corresponding design of the contact breaking position, the utility model enables the arc generation position to be included in the magnetic field coverage range, utilizes the acting force of the magnetic field on the current to form magnetic blow to achieve the effect of quickly extinguishing the arc, greatly improves the electrical performance such as the breaking capacity of the auxiliary switch, can simultaneously achieve a flexible and variable breaking angle design to meet various requirements, further reduces the risk that the magnetic field range is small and cannot accurately cover the arc, and improves the reliability of the product. Description of the drawings
[0012] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model more clear and understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0013] Figure 1 It is a schematic diagram of the overall exploded structure of the present utility model.
[0014] Figure 2 It is a schematic diagram of the structure of the substrate unit of the present utility model.
[0015] Figure 3 It is a schematic side view structure diagram of the substrate unit of the present utility model.
[0016] Figure 4 It is a schematic diagram of the principle of the magnetic field direction and the arc direction of the present utility model.
[0017] Markings in the figure: 1 is the rear end cover, 2 is the front end cover, 3 is the connecting rod, 4 is the fastener, 5 is the driving square shaft, 6 is the substrate, 7 is the fixed contact piece, 8 is the moving contact piece, 9 is the magnetic block, 10 is the square shaft sleeve, 11 is the concave contact, 12 is the arc-shaped piece, 13 is the designed included angle, 14 is the cover part shaft sleeve, and 15 is the pointer block. Specific Embodiments
[0018] As shown in the accompanying drawings, this embodiment provides a sliding contact type auxiliary switch that can meet the multi-angle magnetic blow arc extinguishing function, including a main body part. The main body part includes a plurality of substrate units with the same stacked structure. A rear end cover 1 is provided at the rear side of the main body part, and a front end cover 2 is provided at the front side of the main body part. The front end cover 2, the main body part, and the rear end cover 1 are simultaneously connected together by a connecting rod 3 and a fastener 4. The driving square shaft 5 passes through the front end cover 2, the main body part, and the rear end cover 1 at the same time.
[0019] Cover part shaft sleeves 14 with a square inside and a round outside are rotatably provided in the middle of the front end cover 2 and the rear end cover 1, and the driving square shaft 5 correspondingly passes through the middle of the cover part shaft sleeve 14.
[0020] A pointer block 15 is sleeved on the front side of the driving square shaft 5 in front of the front end cover 2, which is used to indicate the rotation angle of the current driving square shaft 5.
[0021] The substrate unit includes a substrate 6, a fixed contact piece 7, a moving contact piece 8, and a magnetic block 9. All the substrates 6 are connected together by a connecting rod 3 and a fastener 4. A square shaft sleeve 10 is sleeved on the driving square shaft 5 corresponding to the main body part.
[0022] The moving contact piece 8 is arranged in the middle of the substrate 6. The moving contact piece 8 passes through the square shaft sleeve 10 through the square hole in the middle and can rotate simultaneously with the driving square shaft 5. Concave contacts 11 are arranged above and below the moving contact piece 8.
[0023] The fixed contact pieces 7 are evenly arranged at the upper left, upper right, lower left and lower right parts of the substrate 6. An arc-shaped piece 12 is arranged on the fixed contact piece 7 close to the center side of the substrate 6, and the concave contact 11 can clamp the arc-shaped piece 12 in the middle.
[0024] The two arc-shaped pieces 12 on the upper side are symmetric about the vertical center line of the substrate 6, and the designed included angle 13 between adjacent ends is not greater than 90°. The two arc-shaped pieces 12 on the lower side are symmetric about the vertical center line of the substrate 6, and the designed included angle 13 between adjacent ends is not greater than 90°.
[0025] Magnetic blocks 9 are arranged on both the upper and lower sides of the substrate 6. The magnetic blocks 9 are all arc-shaped, and the radian of the magnetic blocks 9 is not less than the angle of the designed included angle 13.
[0026] The working principle is as follows: The operating mechanism drives the drive shaft to rotate, the drive shaft drives the square shaft sleeve 10 to rotate, the square shaft sleeve 10 drives the moving contact piece 8 to rotate. After the moving contact piece 8 rotates to the end of the fixed contact piece 7, the corresponding contacts are connected, and they are clamped and slide in contact. After rotating a certain angle, the moving contact piece 8 and the fixed contact piece 7 are disconnected, and the corresponding contacts are separated. When the contacts are disconnected from being connected, that is, when the moving contact piece 8 and the fixed contact piece 7 are just disconnected, an arc will be generated. Under the action of the magnetic blocks 9, a magnetic field of about 90° is formed on each of the upper and lower sides, which can completely cover the generated arc, and the magnetic blow is formed by using the acting force of the magnetic field on the current to quickly extinguish the arc. At the same time, according to different requirements of customers and different needs of disconnection angles, the designed included angle 13 can be set arbitrarily within the range not greater than 90°, and the flexible and variable opening and breaking angles are designed to meet various design requirements of customers.
[0027] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited by the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as it meets the use requirements, it is within the protection scope of the present invention.
Claims
1. A sliding contact type auxiliary switch capable of satisfying the multi-angle magnetic blowout arc function, comprising a main body part, wherein the main body part comprises a plurality of substrate units with the same stacked structure, a rear end cover (1) is arranged at the rear side of the main body part, a front end cover (2) is arranged at the front side of the main body part, the front end cover (2), the main body part and the rear end cover (1) are simultaneously connected together by a connecting rod (3) and a fastener (4), and a driving square shaft (5) simultaneously passes through the front end cover (2), the main body part and the rear end cover (1), characterized in that, The substrate unit includes a substrate (6), a fixed contact piece (7), a movable contact piece (8) and a magnetic block (9). All the substrates (6) are connected together by the connecting rod (3) and the fastener (4). A square shaft sleeve (10) is sleeved on the driving square shaft (5) corresponding to the main body part. The movable contact piece (8) is arranged in the middle of the substrate (6). The movable contact piece (8) passes through the square shaft sleeve (10) through a square hole in the middle and can rotate simultaneously with the driving square shaft (5). Concave contacts (11) are arranged above and below the movable contact piece (8). The fixed contact pieces (7) are uniformly arranged at the upper left, upper right, lower left and lower right parts of the substrate (6). An arc-shaped piece (12) is arranged on the fixed contact piece (7) close to the center side of the substrate (6). The concave contact (11) can clamp the arc-shaped piece (12) in the middle. The two arc-shaped pieces (12) on the upper side are symmetric about the vertical center line of the substrate (6) and the designed included angle (13) between adjacent ends is not greater than 90°. The two arc-shaped pieces (12) on the lower side are symmetric about the vertical center line of the substrate (6) and the designed included angle (13) between adjacent ends is not greater than 90°. Magnetic blocks (9) are arranged on both the upper and lower sides of the substrate (6).
2. The sliding contact type auxiliary switch capable of satisfying the multi-angle magnetic blowout arc extinguishing function according to claim 1, wherein, The magnetic blocks (9) are all arc-shaped, and the radian of the magnetic blocks (9) is not less than the angle of the designed included angle (13).
3. The sliding contact type auxiliary switch capable of satisfying the multi-angle magnetic blowout arc extinguishing function according to claim 1, characterized in that, Outer-circle-inner-square cover shaft sleeves (14) are rotatably arranged in the middle of the front end cover (2) and the rear end cover (1). The driving square shaft (5) correspondingly passes through the middle of the cover shaft sleeve (14).
4. A sliding contact type auxiliary switch capable of satisfying the multi-angle magnetic blowout arc function according to claim 1, characterized in that, A pointer block (15) is sleeved on the driving square shaft (5) on the front side of the front end cover (2).