Air switch based on building electrical use

Abstract

The utility model relates to air switch technical field discloses a kind of air switch based on building electrical, including switch base, ceramic arc-extinguishing chamber and switch cover, two spring clamping block components are symmetrically set in switch base bottom inner side both ends, multiple mounting screws are symmetrically set in the both sides of switch base top both ends, two the outer side of spring clamping block component mutually close one end is respectively provided with two clamping block sealing rings, the one end of ceramic arc-extinguishing chamber is vertically evenly spaced and provided with multiple ceramic radiating fins, two spring top pin components are symmetrically set in switch cover top both ends, switch cover inner side is provided with release, two tightening nuts are symmetrically set in switch cover both ends, two wires are symmetrically set in the both ends of release, two the outer side of wire mutually far one end is respectively provided with two wire sealing rings;The utility model can seal the gap on air switch, improve waterproof performance, and it is convenient to disassemble in narrow space inside, reduce dismounting difficulty.

Description

Technical Field

[0001] This utility model relates to the field of air switch technology, specifically to an air switch for building electrical applications. Background Technology

[0002] Air circuit breakers (also known as air switches) are key protective devices in building electrical and industrial power distribution systems. Their core function is to automatically disconnect circuits using mechanical and electromagnetic principles, effectively preventing fire hazards or equipment damage caused by overloads, short circuits, and other faults. Based on structural differences, air circuit breakers can be further classified into various types, including miniature circuit breakers, molded case circuit breakers, frame circuit breakers, and DC circuit breakers.

[0003] To ensure effective airflow and heat dissipation, existing circuit breakers typically have numerous ventilation holes or gaps in their casings. However, this design allows moisture to easily penetrate, and in humid environments, condensation can easily cause internal short circuits or contact oxidation, thus affecting circuit safety. Furthermore, circuit breakers are usually mounted on rails and require sliding in from the side, which may be inconvenient to disassemble in confined spaces. To improve the waterproof performance of circuit breakers and reduce the difficulty of disassembly in confined spaces, this application proposes a circuit breaker for building electrical systems. Utility Model Content

[0004] The purpose of this utility model is to provide an air switch for building electrical systems, in order to solve the problems of poor waterproof performance caused by the heat dissipation structure of existing air switches and the inconvenience of disassembly and assembly in confined spaces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air switch for building electrical systems, comprising a switch base, two spring-loaded locking components symmetrically arranged at both ends of the bottom inner side of the switch base, a ceramic arc-extinguishing chamber arranged at one end of the inner side of the switch base, a switch cover arranged at the top of the switch base, multiple mounting screws symmetrically arranged on both sides of the top of the switch base, two locking sealing rings respectively arranged on the outer side of the two spring-loaded locking components at their respective ends, multiple ceramic heat sinks vertically and evenly spaced at one end of the ceramic arc-extinguishing chamber, two spring-loaded pin components symmetrically arranged at both ends of the top of the switch cover, a trip unit arranged inside the switch cover, two tightening nuts symmetrically arranged at both ends of the switch cover, two wires symmetrically arranged at both ends of the trip unit, and two wire sealing rings respectively arranged on the outer side of the two wires at their respective ends;

[0006] The spring-loaded component includes a slider. One end of the slider passes through the switch base and is fixedly connected to a guide rail block. The other end of the slider is fixedly connected to a spring mounting block. Two locking springs are symmetrically fixedly connected to the two ends of the spring mounting block away from the slider. A right-angled triangular groove is provided on the top of the spring mounting block. The side projection of the right-angled triangular groove is a right-angled isosceles triangle, and the hypotenuse of the right-angled triangular groove is located near the end of the guide rail block.

[0007] The switch base includes a base housing, a base slot at the top opening of the base housing, a guide rail slot at the bottom of the base housing, and a base sealing ring fixedly connected inside the base slot.

[0008] The ceramic arc-extinguishing chamber is fixedly connected to the inner side of the base housing. The switch cover includes a cover body, an operating mechanism is provided on the top of the cover body, two cover body pressure sleeves are symmetrically fixedly connected at both ends of the cover body, and a cover body locking block is fixedly connected at the bottom opening of the cover body. Multiple pressure grooves are uniformly rotated around the axis at the ends of the two cover body pressure sleeves away from the cover body. A cover body sealing ring is fixedly connected to the outside of the cover body locking block. The cover body locking block is slidably connected to the base locking groove. The two locking block sealing rings are fixedly connected to the base housing at both ends of the guide rail locking groove.

[0009] Among them, multiple mounting screws pass through the cover and are threadedly connected to the base housing, and the mounting screws are screwed to the cover. One end of multiple ceramic heat sinks passes through the base housing and is fixedly connected to the ceramic arc-extinguishing chamber, and the ceramic heat sinks are fixedly connected to the base housing.

[0010] The slider is slidably connected to the base housing on its outer side, and to the sealing ring of the locking block on its outer side. The top of the guide rail locking block is slidably connected to the guide rail slot. The spring mounting block is slidably connected to the inner side of the base housing. The other ends of the two locking block springs are fixedly connected to the inner side of the base housing.

[0011] The spring top pin component includes a guide rod mounting plate. A lever is fixedly connected to the upper surface of the guide rod mounting plate. Two guide rods are symmetrically fixedly connected to both ends of the lower surface of the guide rod mounting plate. The bottoms of the two guide rods pass through the cover and are respectively fixedly connected to two top blocks. Two guide rod springs are respectively provided on the guide rods. The guide rods are slidably connected to the cover. The bottom of the two top blocks is provided with a top block inclined surface near the guide rail block. The top blocks are movably fitted with the right-angled triangular groove on the spring mounting block through the top block inclined surface. One end of the two guide rod springs is fixedly connected to the guide rod, and the other end of the guide rod springs is fixedly connected to the inner side of the cover.

[0012] The release device is fixedly connected to the inside of the cover.

[0013] The outer side of one end of each of the two wire sealing rings is fixedly connected to the inner side of each of the two cover sleeves.

[0014] The two wires pass through two wire sealing rings and are electrically connected to both ends of the trip unit, and the wires are slidably connected to the inner side of the wire sealing rings.

[0015] The inner sides of the two tightening nuts are respectively threaded to the outer sides of the two cover sleeves.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model connects the wires to the wires at both ends of the trip unit by passing the wires through two wire sealing rings. Then, by rotating two tightening nuts, the two cover sleeves are pressed together, so that the two wire sealing rings press the wires together and seal them. Then, the switch cover is fixed to the switch base by multiple mounting screws, which can press the base sealing ring and the cover sealing ring together, thereby sealing the switch base and the switch cover. Finally, the locking block sealing ring seals the part where the slider is connected to the base housing, preventing moisture from entering the air switch and affecting circuit safety.

[0018] 2. This utility model moves two levers upward, which in turn drives multiple guide rods, causing the multiple guide rod springs to compress. The guide rods drive the top block to disengage from the right-angled triangular slot. The multiple locking block springs drive the spring mounting block, which in turn drives the slider to slide, causing the two guide rail locking blocks to open to both ends, making it easy to lock into the guide rail for fixation, and facilitating disassembly inside a small electrical distribution cabinet. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall main structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the switch base mounting structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the mounting structure of the card block sealing ring of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the spring top pin component of this utility model;

[0023] In the diagram: 1. Switch base; 101. Base housing; 102. Base slot; 103. Guide rail slot; 104. Base sealing ring; 2. Spring block assembly; 201. Slider; 202. Guide rail block; 203. Spring mounting block; 204. Block spring; 205. Right-angle triangular slot; 3. Ceramic arc-extinguishing chamber; 4. Switch cover; 401. Cover body; 402. Operating mechanism; 403. Cover body sleeve; 404. Cover body block; 405. Pressure groove; 406. Cover body sealing ring; 5. Mounting screw; 6. Block sealing ring; 7. Ceramic heat sink; 8. Spring top pin assembly; 801. Guide rod mounting plate; 802. Toggle block; 803. Guide rod; 804. Top block; 805. Guide rod spring; 806. Top block inclined surface; 9. Trip device; 10. Tightening nut; 11. Wire; 12. Wire sealing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figure 1-4 This utility model provides a technical solution: an air switch for building electrical use, including a switch base 1, two spring-loaded components 2 symmetrically arranged at both ends of the bottom inner side of the switch base 1, a ceramic arc-extinguishing chamber 3 arranged at one end of the inner side of the switch base 1, a switch cover 4 arranged at the top of the switch base 1, multiple mounting screws 5 symmetrically arranged on both sides of the top of the switch base 1, two locking rings 6 respectively arranged on the outer side of the two spring-loaded components 2 that are close to each other, multiple ceramic heat sinks 7 vertically and evenly spaced at one end of the ceramic arc-extinguishing chamber 3, two spring-loaded pin components 8 symmetrically arranged at both ends of the top of the switch cover 4, a trip unit 9 arranged inside the switch cover 4, two tightening nuts 10 symmetrically arranged at both ends of the switch cover 4, two wires 11 symmetrically arranged at both ends of the trip unit 9, and two wire sealing rings 12 respectively arranged on the outer side of the two wires 11 that are far away from each other;

[0026] The spring-loaded component 2 includes a slider 201. One end of the slider 201 passes through the switch base 1 and is fixedly connected to a guide rail block 202. The other end of the slider 201 is fixedly connected to a spring mounting block 203. Two locking springs 204 are symmetrically fixedly connected to the two ends of the spring mounting block 203 away from the slider 201. A right-angled triangular groove 205 is provided on the top of the spring mounting block 203. The side projection of the right-angled triangular groove 205 is a right-angled isosceles triangle, and the hypotenuse of the right-angled triangular groove 205 is set close to the end of the guide rail block 202. By setting the locking springs 204, the two guide rail blocks 202 at both ends can be driven to retract along the slider 201 and open the two guide rail blocks 202 for easy locking into the guide rail.

[0027] The switch base 1 includes a base housing 101, a base slot 102 is provided at the top opening of the base housing 101, a guide rail slot 103 is provided at the bottom of the base housing 101, and a base sealing ring 104 is fixedly connected inside the base slot 102. By setting the base sealing ring 104, when the switch cover 4 and the switch base 1 are closed, the base sealing ring 104 is pressed to form a seal and improve the waterproof performance.

[0028] The ceramic arc-extinguishing chamber 3 is fixedly connected to the inner side of the base housing 101. The switch cover 4 includes a cover body 401, an operating mechanism 402 is provided on the top of the cover body 401, two cover body pressure sleeves 403 are symmetrically fixedly connected at both ends of the cover body 401, and a cover body locking block 404 is fixedly connected at the bottom opening of the cover body 401. Multiple pressure grooves 405 are uniformly rotated around the axis at the ends of the two cover body pressure sleeves 403 away from the cover body 401. A cover body sealing ring 406 is fixedly connected to the outer side of the cover body locking block 404. The cover body locking block 404 is slidably connected to the base locking groove 102. The two locking block sealing rings 6 are fixedly connected to the base housing 101 at both ends of the guide rail locking groove 103. By setting the cover body sealing ring 406, when the switch cover 4 and the switch base 1 are closed, the cover body sealing ring 406 is pressed to form a seal and improve the waterproof performance.

[0029] Multiple mounting screws 5 pass through the cover 401 and are threaded to the base housing 101. The mounting screws 5 are screwed to the cover 401. Multiple ceramic heat sinks 7 pass through the base housing 101 and are fixedly connected to the ceramic arc-extinguishing chamber 3. The ceramic heat sinks 7 are fixedly connected to the base housing 101. By setting multiple ceramic heat sinks 7 and ceramic arc-extinguishing chamber 3, heat can be absorbed better and the heat dissipation effect can be improved.

[0030] Among them, the outer side of the slider 201 is slidably connected to the base housing 101, the outer side of the slider 201 is slidably connected to the locking block sealing ring 6, the top of the guide rail locking block 202 is slidably connected to the guide rail locking groove 103, the spring mounting block 203 is slidably connected to the inner side of the base housing 101, and the other end of the two locking block springs 204 is fixedly connected to the inner side of the base housing 101.

[0031] The spring top pin component 8 includes a guide rod mounting plate 801. A lever 802 is fixedly connected to the upper surface of the guide rod mounting plate 801. Two guide rods 803 are symmetrically fixedly connected to both ends of the lower surface of the guide rod mounting plate 801. The bottoms of the two guide rods 803 pass through the cover 401 and are respectively fixedly connected to two top blocks 804. Two guide rod springs 805 are respectively provided on the guide rods 803. The guide rods 803 are slidably connected to the cover 401. The bottom of the two top blocks 804 is provided with a top block inclined surface 806 near the guide rail block 202. The top blocks 804 are movably fitted with the right-angled triangular slots 205 on the spring mounting block 203 through the top block inclined surface 806. One end of the two guide rod springs 805 is fixedly connected to the guide rod 803, and the other end of the guide rod springs 805 is fixedly connected to the inner side of the cover 401. By setting the top block inclined surface 806, the right-angled triangular slots 205 can be pressed against, thereby pushing out the guide rail block 202, clamping the two sides of the guide rail, and fixing it.

[0032] The trip unit 9 is fixedly connected to the inside of the cover 401.

[0033] Among them, the outer side of one end of the two wire sealing rings 12 is fixedly connected to the inner side of the two cover pressure sleeves 403 respectively. By setting the wire sealing rings 12, the connection between the wire 11 and the switch cover 4 can be sealed, thereby improving the waterproof performance.

[0034] Two wires 11 pass through two wire sealing rings 12 and are electrically connected to both ends of the trip unit 9. The wires 11 are slidably connected to the inner side of the wire sealing rings 12.

[0035] The inner sides of the two tightening nuts 10 are respectively threaded to the outer sides of the two cover pressure sleeves 403. By setting the two tightening nuts 10, the two cover pressure plates 403 can be pressed tightly, thereby making the two wire sealing rings 12 and the wires 11 fit tightly together to form a seal.

[0036] Working principle: Two wires 11 are passed through two wire sealing rings 12 and electrically connected to both ends of the trip unit 9. Then, the two tightening nuts 10 are rotated, causing them to press against the two cover sleeves 403. This causes the cover sleeves 403 to contract inward through multiple pressure grooves 405, thereby pressing the wire sealing rings 12 against the wires 11 and sealing the wires 11. Then, the cover locking block 404 at the bottom of the cover 401 is aligned with the base locking groove 102 on the base housing 101 and inserted. Finally, multiple mounting screws 5 are tightened to press the switch cover 4 against the switch base 1, thereby pressing the cover sealing ring 406 and the base sealing ring 104 together and sealing the switch cover 4 against the switch base 1. At the connection point, pull the lever 802 upward, which in turn moves multiple guide rods 803 upward, causing the top block 804 to disengage from the right-angled triangular slot 205. The guide rail spring retracts, and the multiple locking springs 204 drive the spring mounting block 203, which in turn drives the guide rail locking block 202 at the other end of the slider 201, causing the two guide rail locking blocks 202 to open to both ends. Then, align the guide rail slot 103 of the switch base 1 with the guide rail and lock it in. Release the two levers 802, and the multiple guide rod springs 805 push out the top block 804 at the bottom of the guide rod 803. The top block's inclined surface 806 presses against the right-angled triangular slot 205, thereby causing the two guide rail locking blocks 202 to clamp the two sides of the guide rail, completing the installation.

[0037] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. An air switch for building electrical applications, comprising a switch base, two spring-loaded locking components symmetrically arranged at both ends of the bottom inner side of the switch base, a ceramic arc-extinguishing chamber arranged at one end of the inner side of the switch base, a switch cover arranged at the top of the switch base, multiple mounting screws symmetrically arranged on both sides of the top of the switch base, two locking sealing rings respectively arranged on the outer side of the two spring-loaded locking components at their respective ends, multiple ceramic heat sinks vertically and evenly spaced at one end of the ceramic arc-extinguishing chamber, two spring-loaded pin components symmetrically arranged at both ends of the top of the switch cover, a trip unit arranged inside the switch cover, two tightening nuts symmetrically arranged at both ends of the switch cover, two wires symmetrically arranged at both ends of the trip unit, and two wire sealing rings respectively arranged on the outer side of the two wires at their respective ends; The spring-loaded component includes a slider. One end of the slider passes through the switch base and is fixedly connected to a guide rail block. The other end of the slider is fixedly connected to a spring mounting block. Two locking springs are symmetrically fixedly connected to the two ends of the spring mounting block away from the slider. A right-angled triangular groove is provided on the top of the spring mounting block. The side projection of the right-angled triangular groove is a right-angled isosceles triangle, and the hypotenuse of the right-angled triangular groove is located near the end of the guide rail block.

2. The air switch for building electrical systems according to claim 1, characterized in that: The switch base includes a base housing, a base slot is provided at the top opening of the base housing, a guide rail slot is provided at the bottom of the base housing, and a base sealing ring is fixedly connected inside the base slot.

3. The air switch for building electrical systems according to claim 2, characterized in that: The ceramic arc-extinguishing chamber is fixedly connected to the inner side of the base housing. The switch cover includes a cover body, an operating mechanism is provided on the top of the cover body, two cover body pressure sleeves are symmetrically fixedly connected at both ends of the cover body, and a cover body locking block is fixedly connected at the bottom opening of the cover body. Multiple pressure grooves are uniformly rotated around the axis at the ends of the two cover body pressure sleeves away from the cover body. A cover body sealing ring is fixedly connected to the outside of the cover body locking block. The cover body locking block is slidably connected to the base locking groove. The two locking block sealing rings are fixedly connected to the base housing at both ends of the guide rail locking groove.

4. A circuit breaker for building electrical systems according to claim 3, characterized in that: Multiple mounting screws pass through the cover and are threaded to the base housing. The mounting screws are connected to the cover screws. One end of each of the multiple ceramic heat sinks passes through the base housing and is fixedly connected to the ceramic arc-extinguishing chamber. The ceramic heat sinks are fixedly connected to the base housing.

5. A circuit breaker for building electrical systems according to claim 3, characterized in that: The outer side of the slider is slidably connected to the base housing, the outer side of the slider is slidably connected to the sealing ring of the locking block, the top of the guide rail locking block is slidably connected to the guide rail locking groove, the spring mounting block is slidably connected to the inner side of the base housing, and the other end of the two locking block springs is fixedly connected to the inner side of the base housing.

6. A circuit breaker for building electrical systems according to claim 5, characterized in that: The spring top pin component includes a guide rod mounting plate. A lever is fixedly connected to the upper surface of the guide rod mounting plate. Two guide rods are symmetrically fixedly connected to both ends of the lower surface of the guide rod mounting plate. The bottoms of the two guide rods pass through the cover and are respectively fixedly connected to two top blocks. Two guide rod springs are respectively provided on the guide rods. The guide rods are slidably connected to the cover. The bottom of the two top blocks is provided with a top block inclined surface near the guide rail block. The top blocks are movably fitted with the right-angled triangular groove on the spring mounting block through the top block inclined surface. One end of the two guide rod springs is fixedly connected to the guide rod, and the other end of the guide rod springs is fixedly connected to the inner side of the cover.

7. A circuit breaker for building electrical systems according to claim 3, characterized in that: The release device is fixedly connected to the inside of the cover.

8. A circuit breaker for building electrical systems according to claim 7, characterized in that: The outer side of one end of each of the two wire sealing rings is fixedly connected to the inner side of each of the two cover sleeves.

9. A circuit breaker for building electrical systems according to claim 8, characterized in that: The two wires pass through two wire sealing rings and are electrically connected to both ends of the trip unit, and the wires are slidably connected to the inside of the wire sealing rings.

10. A circuit breaker for building electrical systems according to claim 3, characterized in that: The inner sides of the two tightening nuts are respectively threaded to the outer sides of the two cover sleeves.

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