Miniature waterproof circuit breaker capable of preventing off-line
By designing rainproof components, sealing structure and wire snaps on the circuit breaker, the problem of short circuit burning caused by rainwater entering outdoors is solved, and the circuit breaker is achieved with higher waterproof performance and service life.
Patent Information
- Application Number
- CN202420650422.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-01
AI Technical Summary
When used outdoors, existing circuit breakers are prone to short-circuit burning due to rainwater entering along the conductor, which affects service life and has poor waterproofing performance.
A micro-waterproof circuit breaker that is anti-disconnection is designed, using rainproof components, sealing shells, hydrophobic blocks and sealing rings. The rainwater is exported through the water collecting tank and water outlet holes to prevent rainwater from seeping into the circuit breaker and through the wire card. Buckle the wire to prevent rainwater from entering.
Effectively prevent rainwater from entering the circuit breaker, avoid short circuit burning, extend service life, and improve the waterproof performance of the circuit breaker.
Smart Images
Figure CN222214079U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit breakers, in particular to a miniature waterproof circuit breaker that prevents line disconnection. Background Art
[0002] A circuit breaker is a switching device that can close, carry and disconnect current under normal circuit conditions and can close, carry and disconnect current under abnormal circuit conditions within a specified time. With the development of science and technology, smart miniature circuit breakers that can be remotely controlled have gradually been widely used to protect circuits. However, even with the development of circuit breakers, their internal circuits still need to be protected from water ingress. The waterproof effect of general circuit breakers is poor, especially at the input and output terminals of the circuit breaker. Due to the wiring method of tightening the circuit wires with exposed screws, the input and output terminals of the circuit breaker will inevitably be flooded in a water environment.
[0003] Chinese patent publication number CN205828328U discloses a molded case circuit breaker with waterproof inlet, a molded case circuit breaker with waterproof inlet, including a circuit breaker body and a control switch, the control switch includes a handle part, and also includes a push slider slidably connected to the circuit breaker body and a push mechanism that converts the thrust of the push slider into a driving force for driving the handle part to rotate.
[0004] However, the circuit breaker does not have a waterproof function. When it is installed outdoors, rainwater may easily enter the circuit breaker along the wires on rainy days, causing the circuit breaker to be unusable or even short-circuited and burned, thus affecting the service life of the circuit breaker. Utility Model Content
[0005] The utility model aims to overcome the disadvantage that the circuit breaker in the above-mentioned prior art does not have a waterproof function and when installed outdoors, rainwater easily enters the circuit breaker along the wires on rainy days, causing the circuit breaker to be unusable or even short-circuited and burned, thereby affecting the service life of the circuit breaker.
[0006] A miniature waterproof circuit breaker for preventing line derailment is proposed, comprising a fixed plate and a circuit breaker, and also comprising a rain shield assembly for shielding the circuit breaker from rain, a wiring frame assembly for fixing wires, a line inlet, a line outlet, a wire fastening assembly for fixing wire ends, and a sealing shell for shielding the line outlet from rain. The circuit breaker is fixedly connected to the fixed plate, the rain shield assembly is arranged above the circuit breaker and connected to the fixed plate, the wiring frame assembly is arranged on one side of the circuit breaker and fixedly connected to the circuit breaker, three groups of line inlets are arranged above the circuit breaker, and the three groups of line inlets are parallel to each other and located at one end of the circuit breaker, three groups of line outlets are also arranged, and the three groups of line outlets are arranged perpendicular to the line inlet and below the circuit breaker, the line outlet and the line inlet of the circuit breaker are both provided with a wire fastening assembly, and the sealing shell is located on one side of the line outlet and is slidably connected to the circuit breaker.
[0007] In the technical solution of the utility model, the pressure plate and the arc plate of the wire fastening assembly are respectively connected to the rain shield shell and the circuit breaker. Therefore, after the pressure plate and the arc plate are connected by fastening bolts, the rain shield shell will also be connected to the top of the circuit breaker by the fastening bolts. At this time, rainwater will fall on the rain shield shell and be blocked by the rain shield shell, and will not fall directly on the top of the circuit breaker. Rainwater that penetrates into the rain shield shell through the gap between the rain shield shell and the fixing plate will enter the interior of the sump after being guided by the hydrophobic block, and flow out of the sump through the outlet hole. When the pressure plate and the arc plate are connected by fastening bolts, the sealing ring will completely seal the gap between the sump and the rain shield shell to prevent rainwater from penetrating into the interior of the rain shield shell, so as to solve the problem that the circuit breaker mentioned in the technical background does not have a waterproof function and is installed outdoors. On rainy days, rainwater is likely to enter the circuit breaker along the wires, causing the circuit breaker to be unusable or even short-circuited and burned, thereby affecting the service life of the circuit breaker.
[0008] Preferably, a plurality of groups of wire clips are arranged above the circuit breaker. After the end portion of the wire is electrically connected to the circuit breaker through the wire fastening assembly, the wire can be placed inside the wire clip. At this time, the wire clip plays a role of fixing and guiding, and can fix the wire above the circuit breaker to prevent the wire from shaking inside the rain shield.
[0009] Preferably, the fixing plate is located at the position of the water collecting trough of the rain shield assembly, and a plurality of water outlet holes are horizontally provided. After the rain shield shell is connected to the arc plate on one side of the circuit breaker by fastening screws, rainwater may penetrate downward through the gap between the rain shield shell and the fixing plate, and the rainwater penetrating into the rain shield shell will flow into the water collecting trough and flow out of the rain shield shell through the water outlet holes.
[0010] Preferably, the rain shield assembly includes a sump, a rain shield shell, a drain block and a sealing ring. The sump is vertically arranged above the circuit breaker and fixedly connected to the fixed plate. The rain shield shell is arranged above the circuit breaker and slidably connected to the inside of the sump. The drain block is arranged at the port at the end of the rain shield shell that contacts the sump and is fixedly connected to the rain shield shell. The sealing ring is also arranged at the port of the rain shield shell and the sealing ring is located above the drain block and connected to the rain shield shell. The pressure plate of the wiring frame assembly is horizontally arranged on one side of the rain shield shell and fixedly connected to the rain shield shell. The rain shield shell is arranged inside the sump, so that rainwater flowing into the rain shield shell can be guided through the sump and then flow out of the inside of the rain shield shell, and when the rain shield shell is lifted upward, it can be guided through the sump. At the same time, the sealing ring can seal and protect the gap between the rain shield shell and the sump.
[0011] Preferably, the hydrophobic block is made of polycarbonate material, and the sealing ring is made of rubber material. The polycarbonate material has good impact resistance, so the hydrophobic block will not be easily deformed, and the polycarbonate material has good corrosion resistance, so it will not be easily corroded by rain or snow when exposed to air.
[0012] The preferred technical solution of the utility model is that the wiring frame assembly includes a pressure plate, a movable plate, a first groove strip, a card point, an arc plate, a convex point, a second groove strip and a fastening bolt. The pressure plate is horizontally connected to one side of the rain shield shell and a plurality of arc grooves are provided on the pressure plate. An arc movable plate is arranged inside each group of arc grooves, and a first groove strip is horizontally provided on the inner wall of each group of movable plates. Card points are provided at the four corners of each group of movable plates. The arc plate is located at the bottom of the pressure plate and is horizontally connected to the circuit breaker, and the arc plate is opposite to each group of movable plates. A groove is also provided at the corresponding position, and convex points are provided at the positions corresponding to the card points inside the groove. A second groove strip is also horizontally provided inside the groove. Threaded holes are provided at the positions corresponding to the two ends of the pressure plate and the arc plate, and fastening bolts are vertically provided in the two threaded holes. After the wire is connected to the circuit breaker body through the wire fastening assembly, the position of the wire can be fixed by the pressure plate, the movable plate and the arc plate to avoid shaking between the end part of the wire and the wiring frame assembly when the wire moves, and to avoid dotted lines and falling off.
[0013] Preferably, the wire fastening assembly includes a first metal connecting plate, a second metal connecting plate, a waterproof baffle, a spring and a screw. The first metal connecting plate is vertically connected to the inside of the line inlet and the line outlet, the second metal connecting plate is vertically arranged on one side of the first metal connecting plate, and the second metal connecting plate is slidably connected to the inside of the line inlet and the line outlet, a threaded hole is provided at the bottom of the second metal connecting plate, the screw is horizontally arranged in the threaded hole, the waterproof baffle is located inside the circuit breaker and vertically arranged on one side of the second metal connecting plate, the spring is vertically arranged inside the circuit breaker and the spring is located at the bottom of the waterproof baffle, when the screwdriver is inserted into the inside of the circuit breaker, the waterproof baffle will move downward due to the squeezing of the screwdriver to avoid blocking the path of the screwdriver, and after the screwdriver is pulled out of the circuit breaker, the spring will pop out the waterproof baffle again, and the slot on the circuit breaker is blocked by the waterproof baffle to prevent rainwater from splashing into the inside of the circuit breaker through the slot on the circuit breaker.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] The rain shield assembly can discharge rainwater falling on the circuit breaker into the interior of the circuit breaker through the water outlet holes on the sump, preventing rainwater from seeping into the interior of the rain shield shell from the gap between the rain shield shell and the fixing plate and contacting the circuit breaker. At the same time, the wire enters the interior of the rain shield shell from one side of the circuit breaker and is electrically connected to the circuit breaker. The previous method of electrically connecting to the circuit breaker from the top of the circuit breaker is not used, thereby reducing the risk of rainwater seeping into the circuit breaker, thereby solving the problem of poor waterproof performance of existing circuit breakers. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of the three-dimensional structure of a miniature waterproof circuit breaker that prevents line disconnection;
[0017] Figure 2 A schematic diagram of the coordination of a water collecting tank and a fixing plate structure of a miniature waterproof circuit breaker that prevents line disconnection;
[0018] Figure 3 for Figure 2 A magnified schematic diagram of point A;
[0019] Figure 4 A schematic diagram of a rain shield structure of a miniature waterproof circuit breaker that prevents line disconnection;
[0020] Figure 5 A schematic diagram of a rain shield housing for a miniature waterproof circuit breaker that prevents line disconnection;
[0021] Figure 6 for Figure 5 BB cross-sectional view;
[0022] Figure 7 for Figure 6 A magnified schematic diagram of point B;
[0023] Figure 8 A schematic diagram of the main structure of a wiring frame assembly of a miniature waterproof circuit breaker that prevents disconnection;
[0024] Fig. 9 A schematic diagram of the structure of a wiring frame assembly of a miniature waterproof circuit breaker that prevents disconnection of the wires;
[0025] Fig.10 A schematic diagram of a wire buckle structure of a miniature waterproof circuit breaker that prevents line disconnection;
[0026] Fig.11 A schematic diagram of the coordination of the line inlet and circuit breaker structure of a miniature waterproof circuit breaker that prevents line disconnection;
[0027] Fig.12 A schematic diagram of a main view of a circuit breaker for preventing disconnection of a miniature waterproof circuit breaker;
[0028] Fig.13 for Fig.12Schematic diagram of CC cross-section;
[0029] Fig.14 for Fig.13 A magnified schematic diagram of point C;
[0030] In the figure: 1-fixed plate, 11-water outlet, 2-circuit breaker, 21-wire buckle, 3-rain shield assembly, 31-water collecting trough, 32-rain shield shell, 33-drain block, 34-sealing ring, 4-wiring frame assembly, 41-pressing plate, 42-moving plate, 43-first groove bar, 44-card point, 45-arc plate, 46-convex point, 47-second groove bar, 48-fastening bolt, 5-inlet, 6-outlet, 7-wire fastening assembly, 71-first metal connecting plate, 72-second metal connecting plate, 73-waterproof baffle, 74-spring, 75-screw, 8-sealing shell DETAILED DESCRIPTION
[0031] The following will be combined with the attached embodiment of the utility model Figure 1-14 , the technical solutions in the embodiments of the utility model are described in detail.
[0032] like Figure 1-3 As shown, a miniature waterproof circuit breaker for preventing line derailment includes a fixed plate 1 and a circuit breaker 2, the circuit breaker 2 is vertically fixedly connected to the fixed plate 1, and a rain shield assembly 3 for shielding the circuit breaker 2 from rain is arranged above the circuit breaker, the rain shield assembly 3 is arranged above the circuit breaker according to the width direction of the circuit breaker 2, and a water collecting trough 31 of the rain shield assembly 3 is fixedly connected to the fixed plate 1, and a position on the fixed plate 1 located at the water collecting trough 31 is provided with a plurality of groups of water outlet holes 11 according to the length direction of the water collecting trough 31, the water inlet of the water outlet hole 11 is arranged above the water collecting trough 31, and the water outlet of the water outlet hole 11 is arranged on the outside of the fixed plate 1, and the surface of the water collecting trough 31 is inclined, so that rainwater that penetrates into the inside of the rain shield shell 32 through the gap between the rain shield shell 32 and the fixed plate 1 will flow out of the inside of the water collecting trough 31 through the water outlet holes 11 after flowing into the inside of the water collecting trough 31, and will not accumulate in the inside of the water collecting trough 31.
[0033] like Figure 1-3As shown, a wire fastening assembly 7 for fixing the wire is provided on one side of the circuit breaker 2. The wire fastening assembly 7 is laterally fixedly connected to one side of the circuit breaker 2 and the rain shield assembly 3. After the wire is electrically connected to the circuit breaker 2 through the wiring frame assembly 4, the wire can be placed inside the wire fastening assembly 7 to fix the position of the wire to prevent the wire inside the rain shield assembly 3 from being displaced by force. Then, when the circuit breaker 2 moves, the end portion of the wire and the wiring frame assembly 4 are prevented from shaking, thereby causing the dotted line and the wire end to fall off from the wiring frame assembly 4. A sealing shell 8 is provided at the lower end of the circuit breaker 2. The sealing shell 8 is located at the position of the wire outlet 6 and is slidably connected above the circuit breaker 2. Through holes are opened on the bottom plate of the sealing shell 8 at the position corresponding to the wire outlet 6. The end portion of the wire can pass through the through hole on the sealing shell 8 and be connected to the inside of the wire outlet 6 through the wiring frame assembly 4.
[0034] like Figure 4-7 As shown, the rain shield assembly 3 includes a water collecting trough 31, a rain shield shell 32, a drain block 33 and a sealing ring 34. The water collecting trough 31 is located above the circuit breaker 2 and is vertically fixedly connected to the fixed plate 1. The rain shield shell 32 is vertically arranged above the circuit breaker 2 and is slidably connected to the inside of the water collecting trough 31. The drain block 33 is arranged at the port of the rain shield shell 32 close to one end of the fixed plate 1, and the drain block 33 is fixedly connected to the rain shield shell 32. Therefore, when the rain shield shell 32 slides up and down inside the water collecting trough 31, the rain shield shell 32 will synchronously drive the drain block 33 to slide up and down. The sealing ring 34 is also arranged at the port of the rain shield shell 32 close to one end of the fixed plate 1, and the sealing ring 34 is located on the bottom side of the drain block 33. The sealing ring 34 is also connected to the top of the rain shield shell 32. After the wire is electrically connected to the circuit breaker 2 through the wiring frame assembly 4, the rain shield shell 32 can be slid downward according to the shape of the water collecting trough 31.
[0035] like Figure 4-7 As shown, when the rain shield shell 32 slides downward, it will synchronously drive the sealing ring 34 and the hydrophobic block 33 to slide downward synchronously. Therefore, the rain shield shell 32 can stop sliding downward until the sealing ring 34 and the hydrophobic block 33 are driven by the rain shield shell 32 to the inside of the sump 31. When the sealing ring 34 and the hydrophobic block 33 are driven by the rain shield shell 32 to the inside of the sump 31, the pressure plate 41 and the arc plate 45 of the wire fastening assembly 7 will also contact each other under the drive of the rain shield shell 32. At this time, the pressure plate 41 and the arc plate 45 can be connected together using the fastening bolts 48, and the rain shield shell 32 will also be fixed above the circuit breaker 2 under the action of the pressure plate 41. Therefore, when it rains, the rain shield shell 32 can prevent rainwater from falling above the circuit breaker 2, and rainwater that penetrates into the rain shield shell 32 through the gap between the rain shield shell 32 and the fixing plate 1 will also be collected by the sump 31 and discharged from the sump 31 through the water outlet 11 on the fixing plate 1.
[0036] like Figure 8-9 As shown, the wiring frame assembly 4 includes a pressing plate 41, a moving plate 42, a first groove strip 43, a clamping point 44, an arc plate 45, a convex point 46, a second groove strip 47 and a fastening bolt 48. The pressing plate 41 is laterally fixedly connected to one side of the rain shield shell 32, so when the rain shield shell 32 slides up and down, the pressing plate 41 will slide up and down with the rain shield shell 32. A plurality of groups of semicircular arc grooves are provided on the pressing plate 41 along the length direction of the pressing plate 41, and each group of arc grooves is provided with a fixing thread for fixing the wire. The arc-shaped movable plates 42, each group of arc-shaped movable plates 42 are connected to the pressure plate 41, so when the pressure plate 41 moves up and down with the rain shield shell 32, the movable plates 42 will also move up and down together with the pressure plate 41, and each group of movable plates 42 has a plurality of first groove strips 43 horizontally opened on it. When the pressure plate 41 contacts the arc-shaped plate 45, the first groove strips 43 will be pressed on the top of the wire to increase the friction between the movable plate 42 and the top of the wire to prevent the wire from moving inside the movable plate 42.
[0037] like Figure 8-9 As shown, each group of movable plates 42 is provided with card points 44 at the four corners, and the card points 44 are fixedly connected to the movable plates 42. Therefore, when the arc plate 45 contacts the pressure plate 41, the first groove strip 43 will contact the outer wall of the wire to increase the friction force, and the card points 44 will be pressed into the rubber skin wrapped around the wire under the action of the movable plate 42, and the wire is clamped by the card points 44 to prevent the wire from moving back and forth in the movable plate 42. The arc plate 45 is located at the bottom of the pressure plate 41 and is laterally fixedly connected to the circuit breaker 2, and the arc plate 45 is also provided with multiple groups of semicircular grooves along the length direction of the arc plate 45, and the grooves on the arc plate 45 correspond to the position of the movable plate 42 on the pressure plate 41, and the inside of each group of grooves is laterally provided with a second groove strip 47 for increasing the friction force.
[0038] like Figure 8-9 As shown, when the wire is placed in the groove of the arc plate 45 and the arc plate 45 contacts the pressure plate 41, the wire will be pressed on the second groove strip 47 by the pressure plate 41 and the movable plate 42 to increase the friction force under the wire, and the positions corresponding to the clamping points 44 in the groove of the arc plate 45 are provided with protrusions 46. When the pressure plate 41 contacts the arc plate 45, the protrusions 46 will be pressed into the rubber skin wrapped around the wire together with the clamping points 44, and clamp the wire together with the clamping points 44 to prevent the wire from moving back and forth in the arc plate 45. Threaded holes are provided at positions corresponding to both ends of the arc plate 45 and the pressure plate 41, and fastening bolts 48 are vertically provided in the two threaded holes, so that after the wire is placed in the arc plate 45 and the pressure plate 41, the fastening bolts 48 can be screwed, and the pressure plate 41 and the arc plate 45 are connected together by the fastening bolts 48, thereby preventing the rain shield 32 from falling off the circuit breaker 2.
[0039] like Figure 10-11As shown, a plurality of wire clips 21 for guiding and fixing the wires are arranged above the circuit breaker 2. The wire clips 21 are fixedly connected to the top of the circuit breaker, and a notch is provided above the wire clips 21. Therefore, after the end portion of the wire is electrically connected to the circuit breaker through the wire fastening assembly 7, the wire can be directly pressed into the inside of the wire clips 21 from the notch above the wire clips 21 to fix the position of the wire and prevent the wire from shaking inside the rain shield 32. At the same time, a plurality of wire clips 21 are also arranged above the arc plate 45 on one side of the circuit breaker 2. Therefore, the entrance of the wire can be arranged on one side of the circuit breaker 2 after being guided by the wire clips 21, thereby avoiding the previous connection method of the wire being electrically connected to the circuit breaker 2 from the top of the circuit breaker 2, and reducing the risk of rainwater entering the inside of the circuit breaker 2 from the top of the circuit breaker 2.
[0040] like Figure 12-14 As shown, three groups of inlet ports 5 are arranged above the circuit breaker 2, and the three groups of inlet ports 5 are parallel to each other. Three groups of outlet ports 6 are arranged below the circuit breaker 2 at positions corresponding to the inlet ports 5. The outlet ports 6 and the inlet ports 5 are both provided with wire fastening components 7. The wire fastening components 7 include a first metal connecting plate 71, a second metal connecting plate 72, a waterproof baffle 73, a spring 74 and a screw 75. The first metal connecting plate 71 is vertically fixedly connected to the inside of the inlet port 5 and the outlet port 6. The second metal connecting plate 72 is vertically arranged on one side of the first metal connecting plate 71, and the second metal connecting plate is slidably connected to the inside of the inlet port and the outlet port 6. A threaded hole is provided at the bottom of the second metal connecting plate 72, and the screw 75 is horizontally arranged in the threaded hole. A slot is horizontally provided on one side of the second metal connecting plate 72. The waterproof baffle 73 is vertically arranged in the slot and arranged on one side of the second metal connecting plate 72. The spring 74 is vertically arranged in the slot of the circuit breaker 2 and the spring 74 is located at the bottom of the waterproof baffle 73.
[0041] like Figure 12-14 As shown, after the wire is placed inside the outlet 6 and the inlet 5, the end portion of the wire is placed on the side of the first metal connecting plate 71 close to the second metal connecting plate 72, and then the screwdriver is inserted into the inside of the circuit breaker 2 to tighten the screw 75, so that the screw 75 starts to rotate. When the screw 75 rotates, it will drive the second metal connecting plate 72 to move toward the first metal connecting plate 71. When the second metal connecting plate 72 moves toward the first metal connecting plate 71, it will begin to squeeze the end portion of the wire, so that the end portion of the wire is fixed inside the first metal connecting plate 71 and the second metal connecting plate 72. When the screwdriver moves toward the second metal connecting plate 72, it will squeeze the waterproof baffle 73. The waterproof baffle 73 will move downward after being squeezed. In the process of the waterproof baffle 73 moving downward, it will squeeze the spring 74. After being squeezed, the spring 74 will begin to deform and accumulate force.
[0042] like Figure 12-14 As shown, after the end portion of the wire is fixed by the first metal connecting plate 71 and the second metal connecting plate 72, the screwdriver can be pulled out from the inside of the circuit breaker 2. After the screwdriver is pulled out from the inside of the circuit breaker 2, the squeezing of the waterproof baffle 73 and the spring 74 will disappear, and the spring 74 will use the force accumulated when the waterproof baffle 73 moves downward to pop the waterproof baffle 73 upward, and the waterproof baffle 73 blocks the slot on one side of the second metal connecting plate 72 to prevent rainwater from splashing into the inside of the circuit breaker 2 from the slot.
[0043] The movement process of this embodiment is as follows: after the fastening bolts 48 are screwed out from the inside of the pressure plate 41 and the arc plate 45, the rain shield 32 is slid upward according to the shape of the water collecting tank 31, until the rain shield 32 is completely taken out from the inside of the water collecting tank 31, and then the end part of the wire is placed into the inside of the wire inlet 5. After the end of the wire is indeed placed between the first metal connecting plate 71 and the second metal connecting plate 72, the screwdriver is inserted into the inside of the circuit breaker to tighten the screw 75, and the second metal connecting plate 72 is driven by the screw 75 to move toward the direction of the first metal connecting plate 71 until the first metal connecting plate 71 and the second metal connecting plate 72 fix the end of the wire together, ensuring that the wire is fixed inside the wire inlet 5, and then the screwdriver is pulled out from the inside of the circuit breaker 2, and then the wire is placed inside the wire buckle 21 and fixed, and then after the wire passes through the wire buckle 21, the wire is placed inside the semicircular groove of the arc plate 45.
[0044] Then slide the rain shield 32 downward according to the position of the sump 31 until the water-repellent block 33 and the sealing ring 34 are placed inside the sump 31, then tighten the fastening bolts 48 to connect the pressure plate 41 and the arc plate 45 together, and then slide the sealing shell 8 out from the bottom of the circuit breaker 2, and then pass the end of the wire through the through hole on the bottom plate of the sealing shell 8 into the outlet 6, and then insert the screwdriver into the inside of the circuit breaker 2 again to tighten the screw 75, and fix the end part of the wire inside the outlet 6 through the wire fastening assembly 7, and then insert the sealing shell 8 into the circuit breaker 2 again.
[0045] The above embodiments are only for illustrating the technical idea of the present utility model, and cannot be used to limit the protection scope of the present utility model. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present utility model shall fall within the protection scope of the present utility model.
Claims
1. A miniature waterproof circuit breaker for preventing line disconnection, comprising a fixing plate (1) and a circuit breaker (2), characterized in that: The invention also comprises a rain shield assembly (3) for shielding the circuit breaker (2) from rain, a wiring frame assembly (4) for fixing wires, a wire inlet (5), a wire outlet (6), a wire fastening assembly (7) for fixing wire ends, and a sealing shell (8) for shielding the wire outlet (6) from rain. The circuit breaker (2) is fixedly connected to the fixing plate (1), the rain shield assembly (3) is arranged above the circuit breaker (2) and connected to the fixing plate (1), and the wiring frame assembly (4) is arranged on one side of the circuit breaker (2) and connected to the circuit breaker ( 2) fixed connection, three groups of line inlets (5) are arranged above the circuit breaker (2), and the three groups of line inlets (5) are parallel to each other and are located at one end of the circuit breaker (2), three groups of line outlets (6) are also arranged, and the three groups of line outlets (6) are arranged perpendicular to the line inlets (5) and are located below the circuit breaker (2), the line outlets (6) and the line inlets (5) of the circuit breaker (2) are both provided with wire fastening components (7), and the sealing shell (8) is located on one side of the line outlet (6) and is slidably connected to the circuit breaker (2).
2. The anti-line-off miniature waterproof circuit breaker according to claim 1 is characterized in that: A plurality of groups of wire buckles (21) are arranged above the circuit breaker (2).
3. The anti-line-off miniature waterproof circuit breaker according to claim 1 is characterized in that: The fixing plate (1) is located at the position of the water collecting tank (31) of the rain shielding component (3), and has multiple groups of water outlet holes (11) arranged horizontally.
4. The anti-line-off miniature waterproof circuit breaker according to claim 3 is characterized in that: The rain shield assembly (3) comprises a water collecting trough (31), a rain shield shell (32), a water-repellent block (33) and a sealing ring (34); the water collecting trough (31) is vertically arranged above the circuit breaker (2) and fixedly connected to the fixing plate (1); the rain shield shell (32) is arranged above the circuit breaker (2) and slidably connected to the inside of the water collecting trough (31); the water-repellent block (33) is arranged at a port of the rain shield shell (32) at one end in contact with the water collecting trough (31) and fixedly connected to the rain shield shell (32); the sealing ring (34) is also arranged at the port of the rain shield shell (32) and the sealing ring (34) is located above the water-repellent block (33) and connected to the rain shield shell (32); the pressing plate (41) of the wiring frame assembly (4) is horizontally arranged on one side of the rain shield shell (32) and fixedly connected to the rain shield shell (32).
5. The anti-line-off miniature waterproof circuit breaker according to claim 4 is characterized in that: The hydrophobic block (33) is made of polycarbonate material, and the sealing ring (34) is made of rubber material.
6. The anti-line-off miniature waterproof circuit breaker according to claim 4, characterized in that: The wiring frame assembly (4) comprises a pressing plate (41), a moving plate (42), a first groove strip (43), a clamping point (44), an arc plate (45), a convex point (46), a second groove strip (47) and a fastening bolt (48); the pressing plate (41) is transversely connected to one side of the rain shield shell (32) and a plurality of groups of arc grooves are provided on the pressing plate (41); an arc moving plate (42) is provided inside each group of arc grooves, and a first groove strip (43) is transversely provided on the inner wall of each group of moving plates (42); each group of moving plates (42) Clamping points (44) are arranged at the four corners, the arc plate (45) is located at the bottom of the pressure plate (41) and is laterally connected to the circuit breaker (2), and grooves are also provided at positions corresponding to each group of movable plates (42) on the arc plate (45), and convex points (46) are provided at positions corresponding to the clamping points (44) inside the grooves, and second groove strips (47) are also laterally arranged inside the grooves, and threaded holes are provided at positions corresponding to both ends of the pressure plate (41) and the arc plate (45), and fastening bolts (48) are vertically arranged in the two threaded holes.
7. The anti-line-off miniature waterproof circuit breaker according to claim 1, characterized in that: The wire fastening assembly (7) comprises a first metal connecting plate (71), a second metal connecting plate (72), a waterproof baffle (73), a spring (74) and a screw (75); the first metal connecting plate (71) is vertically connected inside the line inlet (5) and the line outlet (6); the second metal connecting plate (72) is vertically arranged on one side of the first metal connecting plate (71), and the second metal connecting plate is slidably connected inside the line inlet and the line outlet (6); a threaded hole is provided at the bottom of the second metal connecting plate (72), and the screw (75) is horizontally arranged in the threaded hole; the waterproof baffle (73) is located inside the circuit breaker (2) and vertically arranged on one side of the second metal connecting plate (72); the spring (74) is vertically arranged inside the circuit breaker (2) and the spring (74) is located at the bottom of the waterproof baffle (73).