Low-voltage intelligent miniature circuit breaker

Abstract

The utility model discloses a low-voltage intelligent miniature circuit breaker comprising a miniature circuit breaker main body, one side of the miniature circuit breaker main body is movably connected with an insulated switch-out switch, one side of the insulated switch-out switch is fixedly connected with an arc-shaped strip, and the bottom of the arc-shaped strip is fixedly connected with a conducting strip. An arc-shaped groove is formed in one side of the miniature circuit breaker body, and a blocking groove, a first conductive groove and a second conductive groove are formed in the arc-shaped groove. According to the utility model, through cooperative use of the conductive sheet, the arc-shaped groove, the conductive groove I, the rebound assembly and other structures, the LED warning lamp circuit can be connected when a temporary circuit is accidentally tripped or needs to be maintained at night, so that the LED warning lamp is turned on to generate a lighting warning effect, and the safety of the LED warning lamp is ensured. According to the miniature circuit breaker, the information of power failure or circuit tripping can be quickly obtained by personnel, the personnel can conveniently find the miniature circuit breaker main body in the dark, and a warning effect can be achieved for maintenance personnel during maintenance, so that the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage circuit breakers, in particular to a low-voltage intelligent miniature circuit breaker. Background Art

[0002] Miniature circuit breakers (MCBs) are widely used in low-voltage electrical systems to protect electrical circuits from short circuits, overloads, and other faults. They typically have the following features: Overload protection: When the current exceeds a set safety limit, they automatically disconnect the circuit, preventing damage to the circuit and electrical equipment. Short-circuit protection: When a short circuit occurs, they automatically and quickly disconnect the power supply, preventing fire and equipment damage.

[0003] The Chinese patent application number CN202221870494.5 discloses an intelligent molded case circuit breaker, including an intelligent molded case circuit breaker body, a switch is provided on one side of the outer surface of the intelligent molded case circuit breaker body, a warning assembly is provided at the bottom of the switch, and the warning assembly is fixedly connected to the intelligent molded case circuit breaker body, the warning assembly includes an insulating block, a sliding hole, a limit block, a movable rod, a first wire, an alarm, a battery, a second wire, a movable block, a first conductive rod, a slide groove, a fixed rod, a compression spring, a guide rod, a second conductive rod, a concave conductive rod and a cavity, and the battery is fixedly mounted on one side of the outer surface of the intelligent molded case circuit breaker body, and the insulating block and the alarm are fixedly mounted on the front end outer surface of the intelligent molded case circuit breaker body. The intelligent molded case circuit breaker described in the utility model, through the set warning assembly, can promptly issue an alarm after the switch is powered off and tripped, so as to remind personnel that the intelligent molded case circuit breaker body has tripped.

[0004] Although the above device can remind personnel that the circuit breaker has tripped, if the circuit breaker trips at night, it will cause a power outage in the room. At this time, due to the dark environment, personnel will not be able to find the location of the circuit breaker and can only hear the sound of the alarm, which is inconvenient to quickly find the location of the circuit breaker. In addition, when inspecting the circuit breaker, the maintenance personnel may not be able to distinguish the status of the switch for a long time, which is dangerous. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a low-voltage intelligent miniature circuit breaker.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a low-voltage intelligent miniature circuit breaker, comprising a miniature circuit breaker body, an insulating pull-out switch movably connected to one side of the miniature circuit breaker body, an arc-shaped bar fixedly connected to one side of the insulating pull-out switch, a conductive sheet fixedly connected to the bottom of the arc-shaped bar, an arc-shaped groove provided on one side of the miniature circuit breaker body, a blocking groove, a conductive groove 1 and a conductive groove 2 respectively provided on the arc-shaped groove, a trapezoidal block slidably connected to the inside of the blocking groove, a blocking assembly capable of allowing the trapezoidal block to move up and down is provided at the bottom of the trapezoidal block, a conductive contact 1 and a conductive contact 2 are slidably connected to the conductive groove 1 and the conductive groove 2 respectively, and a rebound assembly is provided on the conductive contact 1 and the conductive contact 2.

[0007] The insulating pull-out switch can place the miniature circuit breaker body in an open and closed state, thereby controlling the connectivity of the entire circuit. The conductive sheet is in the shape of an arc column and has a round head. The upper part of the blocking groove is rectangular, allowing the trapezoidal block to slide in it, and the lower part is circular, allowing the sliding rod to slide on it.

[0008] As a further description of the above technical solution:

[0009] The blocking assembly includes a sliding rod fixedly installed at the bottom of the trapezoidal block, and the bottom of the sliding rod is fixedly connected to a spring 1.

[0010] By setting a spring 1, the trapezoidal block can be raised and lowered, so that the trapezoidal block can block dust and ensure that the arc groove is clean.

[0011] As a further description of the above technical solution:

[0012] The bottom of the spring 1 is fixedly connected to the miniature circuit breaker body, and the sliding rod slides along the blocking groove.

[0013] The sliding of the sliding rod can ensure that the trapezoidal block can be lifted and lowered stably without deviation.

[0014] As a further description of the above technical solution:

[0015] The rebound component includes two metal columns, one of which is installed on the conductive contact 1, and the other is installed on the conductive contact 2. The separated ends of the two metal columns are fixedly connected with the spring 2.

[0016] The metal column is made of conductive material and can be electrically connected to the first conductive contact and the second conductive contact.

[0017] As a further description of the above technical solution:

[0018] Both sides of the outer wall of the metal column are fixedly connected to limit blocks, and the two limit blocks slide along the conductive slot 1 and the conductive slot 2 respectively.

[0019] By setting the limit block, the metal column can be prevented from falling, thereby improving the stability of the device.

[0020] As a further description of the above technical solution:

[0021] The two metal columns slide along the first conductive slot and the second conductive slot respectively, and the second spring is fixedly connected to the miniature circuit breaker body.

[0022] Through the sliding of the metal column, the conductive contact 1 and the conductive contact 2 can move up and down smoothly, thereby improving the stability of power supply.

[0023] As a further description of the above technical solution:

[0024] An LED warning light is fixedly connected to one side of the miniature circuit breaker body, and a first wire and a second wire are respectively fixedly installed on the LED warning light, the first wire is fixedly connected to the second conductive contact, one end of the second wire is fixedly connected to the battery, and the battery is fixedly connected to the third wire, and the third wire is fixedly connected to the first conductive contact.

[0025] By setting up LED warning lights, it can provide a certain lighting effect in the dark, directly understand the status of the circuit breaker switch, and serve as a warning during maintenance.

[0026] As a further description of the above technical solution:

[0027] One side of the miniature circuit breaker body is fixedly connected with a power data display and a fixed adjustment button.

[0028] By placing the power data display, it is possible to clearly understand the voltage used inside the equipment, making it easier for operators to use, making the equipment more intelligent, improving the accuracy of the equipment, and having reliability, while also having the function of overvoltage protection.

[0029] The utility model has the following beneficial effects:

[0030] 1. Compared with the existing technology, this low-voltage intelligent miniature circuit breaker, through the coordinated use of structures such as the conductive sheet, arc-shaped slot, conductive slot one and rebound assembly, can connect the LED warning light circuit when the circuit accidentally trips at night or when the circuit needs maintenance, so that the LED warning light lights up to produce a lighting warning effect, allowing personnel to quickly obtain information about power outages or circuit trips, making it easier for personnel to find the miniature circuit breaker body in the dark. It can also serve as a warning effect for maintenance personnel during maintenance to improve safety.

[0031] 2. Compared with the existing technology, this low-voltage intelligent miniature circuit breaker, through the coordinated use of structures such as the blocking groove, sliding rod, spring and trapezoidal block, can allow the trapezoidal block to block on the arc groove, effectively avoiding dust accumulation in the arc groove, improving the long-term stability of the equipment and ensuring that the power-on effect will not be affected, extending the service life of the device, and also making it easier for personnel to clean the dust on one side of the trapezoidal block, making it easier to maintain and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of the low-voltage intelligent miniature circuit breaker proposed in the utility model;

[0033] Figure 2 This is a three-dimensional schematic diagram of the insulation pull-out switch and arc strip structures of the low-voltage intelligent miniature circuit breaker proposed in the utility model;

[0034] Figure 3 This is a schematic diagram of the partial cross-section structure of the rebound component of the low-voltage intelligent miniature circuit breaker proposed by the present invention when it enters the rebound state;

[0035] Figure 4 This is a three-dimensional schematic diagram of the blocking component structure of the low-voltage intelligent miniature circuit breaker proposed in the utility model.

[0036] Legend:

[0037] 1. Miniature circuit breaker body; 2. Insulated pull-out switch; 3. Arc bar; 4. Conductive sheet; 5. Arc slot; 6. Blocking slot; 7. Conductive slot 1; 8. Conductive slot 2; 9. Trapezoidal block; 10. Conductive contact 1; 11. Conductive contact 2; 12. Sliding rod; 13. Spring 1; 14. Metal column; 15. Spring 2; 16. Limit block; 17. LED warning light; 18. First conductor; 19. Second conductor; 20. Battery; 21. Third conductor; 22. Power data display; 23. Fixed adjustment button. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Reference Figure 1-4The low-voltage intelligent miniature circuit breaker provided by the utility model includes a miniature circuit breaker body 1, an insulating pull-out switch 2 is movably connected to one side of the miniature circuit breaker body 1, an arc-shaped bar 3 is fixedly connected to one side of the insulating pull-out switch 2, and a conductive sheet 4 is fixedly connected to the bottom of the arc-shaped bar 3. An arc-shaped groove 5 is provided on one side of the miniature circuit breaker body 1, and a blocking groove 6, a conductive groove 1 7 and a conductive groove 2 8 are respectively provided on the arc-shaped groove 5. A trapezoidal block 9 is slidably connected to the inside of the blocking groove 6, and a blocking component that allows the trapezoidal block 9 to move up and down is provided at the bottom of the trapezoidal block 9. A conductive contact 10 and a conductive contact 2 11 are slidably connected to the conductive groove 1 7 and the conductive groove 2 8, respectively, and a rebound component is provided on the conductive contact 10 and the conductive contact 2 11.

[0040] The insulating pull-off switch 2 can put the miniature circuit breaker body 1 in the open and closed states, thereby controlling the connectivity of the entire circuit. The conductive sheet 4 is in the shape of an arc column, and the head is round. The upper part of the blocking groove 6 is rectangular, allowing the trapezoidal block 9 to slide in it, and the lower part is round, allowing the sliding rod 12 to slide on it. One end of the conductive groove 1 7 and the conductive groove 2 8 is the projection of the conductive contact 1 10 and the conductive contact 2 11, allowing the conductive contact 10 and the conductive contact 2 11 to slide on it. The middle part is the projection of two limit blocks 16, and the bottom is metal. The projection shape of the column 14, the end of the trapezoidal block 9 facing the conductive sheet 4 is an inclined surface. Through the coordinated use of structures such as the conductive sheet 4, the arc-shaped groove 5, the conductive groove 7 and the rebound component, when the circuit accidentally trips at night or the circuit needs to be repaired, the LED warning light 17 circuit is connected, and the LED warning light 17 lights up to produce a lighting warning effect, so that personnel can quickly get information about whether there is a power outage or a circuit trip, which is convenient for personnel to find the miniature circuit breaker body 1 in the dark, and during maintenance, it can also serve as a warning effect for maintenance personnel to improve safety.

[0041] The blocking assembly includes a sliding rod 12 fixedly installed at the bottom of the trapezoidal block 9. The bottom of the sliding rod 12 is fixedly connected to a spring 13. By setting the spring 13, the trapezoidal block 9 can be raised and lowered, so that the trapezoidal block 9 can block dust and ensure that the arc groove 5 is clean. The bottom of the spring 13 is fixedly connected to the miniature circuit breaker body 1, and the sliding rod 12 slides along the blocking groove 6. Through the sliding of the sliding rod 12, it can be ensured that the trapezoidal block 9 is stably raised and lowered without deviation.

[0042] The rebound assembly includes two metal columns 14, one of which is installed on the conductive contact 10, and the other is installed on the conductive contact 2 11. The two ends of the metal columns 14 are fixedly connected with spring 2 15. The metal column 14 is made of conductive material and can be electrically connected to the conductive contact 10 and the conductive contact 2 11. Both sides of the outer wall of the metal column 14 are fixedly connected with limit blocks 16. The two limit blocks 16 slide along the conductive groove 1 7 and the conductive groove 2 8 respectively. By setting the limit blocks 16, it can be ensured that the metal column 14 does not fall, thereby improving the stability of the device. The two metal columns 14 slide along the conductive groove 1 7 and the conductive groove 2 8 respectively. The spring 2 15 is fixedly connected to the miniature circuit breaker body 1. Through the sliding of the metal column 14, the conductive contact 10 and the conductive contact 2 11 can move up and down smoothly, thereby improving the stability of the power supply.

[0043] An LED warning light 17 is fixedly connected to one side of the miniature circuit breaker body 1, and a first wire 18 and a second wire 19 are fixedly installed on the LED warning light 17. The first wire 18 is fixedly connected to the conductive contact 2 11, and one end of the second wire 19 is fixedly connected to the battery 20. The battery 20 is fixedly connected to a third wire 21, and the third wire 21 is fixedly connected to the conductive contact 10. By setting the LED warning light 17, it can play a certain lighting role in the dark, and can also directly understand the status of the circuit breaker switch, and can play a warning role during maintenance. The wire 18, the second wire 19, and the third wire 21 connect the battery 20 and the LED warning light 17, so that when the conductive sheet 4 contacts the conductive contact 10 and the conductive contact, a closed circuit is formed, thereby lighting up the LED warning light 17. A power data display 22 and a fixed adjustment button 23 are fixedly connected to one side of the miniature circuit breaker body 1. The placement of the power data display 22 can be used to clearly understand the voltage used inside the device, which is convenient for operators to use, making the device more intelligent, improving the accuracy of the device, and having reliability, while also having overvoltage protection.

[0044] Working principle: First, by setting an LED warning light 17 on the outer wall of the miniature circuit breaker body 1, when the circuit trips unexpectedly at night or when the circuit needs to be repaired, the insulating switch 2 falls, making the entire circuit in a disconnected state, and then the arc strip 3 on the insulating switch 2 drives the conductive piece 4 into the arc groove 5 that matches the miniature circuit breaker body 1 and the arc strip 3. When the front end of the conductive piece 4 just enters the arc groove 5, the conductive piece 4 and the trapezoidal block 9 interact with each other. Contact, under the action of the inclined surface of the trapezoidal block 9, the trapezoidal block 9 slides downward along the blocking groove 6, and simultaneously drives the sliding rod 12 downward to squeeze the spring 13, causing the spring 13 to deform. When the insulating pull-off switch 2 is pulled up again, the arc strip 3 and the conductive sheet 4 cancel the squeezing of the trapezoidal block 9, so that the spring 13 rebounds and pushes the sliding rod 12 and the trapezoidal block 9 to retract, allowing the trapezoidal block 9 to be blocked on the arc groove 5, which can prevent dust from accumulating in the arc groove 5 due to long-term storage and affecting the subsequent power-on effect;

[0045] When the conductive sheet 4 enters the position of the conductive slot 1 7 and the conductive slot 2 8, the conductive sheet 4 contacts the conductive contact 1 10 and the conductive contact 2 11 through the round head. Under the action of the umbrella-shaped contacts of the conductive contact 1 10 and the conductive contact 2 11, the conductive sheet 4 can squeeze the contacts, and then the contacts drive the metal column 14 to retract, so that the spring 2 15 is squeezed and deformed, so that the spring 2 15 drives the conductive contact 1 10 and the conductive contact 2 11 to squeeze the conductive sheet 4, thereby connecting the circuit of the first wire 18 and the third wire 21. , the LED warning light 17 and the battery 20 form a closed circuit, so that the LED warning light 17 can be lit, which can produce a lighting effect in a dark environment, reminding personnel whether there is a power outage or a circuit trip. If it is a trip, personnel can quickly find the miniature circuit breaker body 1 in a dark environment and turn the insulating switch 2 back on. When inspecting the circuit, maintenance personnel can use the LED warning light 17 to determine whether the switch is in the disconnected state, which has a certain warning effect to improve safety.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A low-voltage intelligent miniature circuit breaker, comprising a miniature circuit breaker body (1), characterized in that: One side of the miniature circuit breaker body (1) is movably connected to an insulating pull-out switch (2), one side of the insulating pull-out switch (2) is fixedly connected to an arc strip (3), the bottom of the arc strip (3) is fixedly connected to a conductive sheet (4), one side of the miniature circuit breaker body (1) is provided with an arc slot (5), the arc slot (5) is provided with a blocking slot (6), a conductive slot 1 (7) and a conductive slot 2 (8), the blocking slot (6) is slidably connected to a trapezoidal block (9), the bottom of the trapezoidal block (9) is provided with a blocking component that allows the trapezoidal block (9) to move up and down, the conductive slot 1 (7) and the conductive slot 2 (8) are slidably connected to a conductive contact 1 (10) and a conductive contact 2 (11), respectively, and the conductive contact 1 (10) and the conductive contact 2 (11) are provided with a rebound component.

2. The low-voltage intelligent miniature circuit breaker according to claim 1, characterized in that: The blocking assembly comprises a sliding rod (12) fixedly mounted on the bottom of the trapezoidal block (9), and a spring 1 (13) is fixedly connected to the bottom of the sliding rod (12).

3. The low-voltage intelligent miniature circuit breaker according to claim 2, characterized in that: The bottom of the spring 1 (13) is fixedly connected to the miniature circuit breaker body (1), and the sliding rod (12) slides along the blocking groove (6).

4. The low-voltage intelligent miniature circuit breaker according to claim 1, characterized in that: The rebound assembly comprises two metal columns (14), one of which is mounted on the first conductive contact (10), and the other is mounted on the second conductive contact (11), and the two ends of the two metal columns (14) are fixedly connected to the second spring (15).

5. The low-voltage intelligent miniature circuit breaker according to claim 4, characterized in that: Limit blocks (16) are fixedly connected to both sides of the outer wall of the metal column (14), and the two limit blocks (16) slide along the conductive slot 1 (7) and the conductive slot 2 (8) respectively.

6. The low-voltage intelligent miniature circuit breaker according to claim 4, characterized in that: The two metal columns (14) slide along the conductive slot 1 (7) and the conductive slot 2 (8) respectively, and the spring 2 (15) is fixedly connected to the miniature circuit breaker body (1).

7. The low-voltage intelligent miniature circuit breaker according to claim 1, characterized in that: An LED warning light (17) is fixedly connected to one side of the miniature circuit breaker body (1), and a first wire (18) and a second wire (19) are fixedly mounted on the LED warning light (17), respectively. The first wire (18) is fixedly connected to the second conductive contact (11), and one end of the second wire (19) is fixedly connected to a battery (20). The battery (20) is fixedly connected to a third wire (21), and the third wire (21) is fixedly connected to the first conductive contact (10).

8. The low-voltage intelligent miniature circuit breaker according to claim 1, characterized in that: A power data display (22) and a fixed adjustment button (23) are fixedly connected to one side of the miniature circuit breaker body (1).

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