Molded case circuit breaker based on Internet of Things

Abstract

The utility model belongs to the technical field of circuit breakers, and particularly relates to a molded case circuit breaker based on the Internet of Things. The circuit breaker comprises a circuit breaker body and further comprises a sealing mechanism, an end protection piece and a fixing piece, U-shaped installation notches are formed in wiring positions of the two ends of the circuit breaker body, limiting sliding grooves are formed in the two opposite sides of the installation notches, and the two sides of the sealing mechanism are limited in the limiting sliding grooves in a sliding mode; the sealing mechanism is detachably connected with the circuit breaker main body through a fixing piece, and a wire is arranged in the end protection piece in a penetrating mode. According to the circuit breaker device, the wiring end of the wire is protected in a hidden mode through the end protection piece, aging and corrosion caused by wind and sunlight are avoided, dustproof protection is conducted on the wiring position of the circuit breaker through cooperation of the end protection piece and the sealing mechanism, and therefore the stability and reliability of the circuit breaker device are effectively improved, and the service life of the circuit breaker device is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of circuit breaker technology, and in particular relates to a molded case circuit breaker based on the Internet of Things. Background Technology

[0002] With the development of IoT technology and people's increasing demands for electrical safety, both the hardware and software functions of IoT circuit breakers have developed rapidly. For example, Chinese patent CN221282016U discloses an IoT circuit breaker that integrates technologies such as fault arc detection, audible and visual alarms, memory, and human-machine interaction within a limited size, enabling it to operate independently for extended periods without a cloud platform, thus ensuring electrical safety.

[0003] However, during the use of the aforementioned IoT circuit breakers, the circuit breaker's wiring ports are exposed, which not only makes the ends of the wires prone to aging and corrosion, but also allows dust to easily enter the circuit breaker through the gaps in the wire fixing points, affecting the normal operation of the circuit breaker, and even causing faults such as short circuits and burnout, thus affecting the safety and reliability of electricity use. Utility Model Content

[0004] The purpose of this invention is to provide a molded case circuit breaker based on the Internet of Things (IoT), which can solve the defects of existing IoT circuit breakers, such as easy aging and corrosion of the wire ends and weak dustproof function, which makes it easy for dust to enter the circuit breaker.

[0005] The aforementioned IoT-based molded case circuit breaker includes a circuit breaker body, a sealing mechanism, an end protector, and a fixing component. U-shaped mounting notches are provided at both ends of the circuit breaker body's wiring terminals. Limiting grooves are provided on opposite sides of each mounting notch. The sealing mechanism's two sides slide within the limiting grooves. The sealing mechanism is detachably connected to the circuit breaker body via the fixing component. Wires are threaded through the end protector. When the wires are connected to the circuit breaker body, the end protector and the sealing mechanism cooperate to form a protective structure covering the wiring terminals of the circuit breaker body.

[0006] As can be seen from the above structure, not only are the wire terminals hidden and protected by the end protection components to prevent aging and corrosion caused by wind and sun, but the combination of the end protection components and the sealing mechanism also provides dust protection for the wiring points of the circuit breaker body. This effectively prevents external pollutants such as dust and water vapor from entering the interior of the pipeline, thereby improving the stability and reliability of the circuit breaker device and extending its service life.

[0007] Furthermore, the sealing mechanism includes a first sealing plate, a second sealing plate, and a limiting strip. The second sealing plate is vertically connected to one side edge of the first sealing plate, and the limiting strip extends outward from both sides of the second sealing plate to form the limiting strip. The limiting strip and the limiting groove are in sliding engagement.

[0008] Based on the above structure, when the sealing mechanism covers the wiring point of the circuit breaker body, the first sealing plate covers the top of the wiring point, and the second sealing plate covers the end face of the wiring point. With the cooperation of the limiting strip and the limiting groove, a sealed cavity is formed at the wiring point of the circuit breaker body, thereby effectively protecting the wiring point of the circuit breaker body from dust. This can effectively prevent external pollutants such as dust and water vapor from entering the interior of the pipeline, thereby improving the stability and reliability of the circuit breaker device and extending its service life.

[0009] Furthermore, a through hole is provided on the first sealing plate to cooperate with the fixing member, and a slot is provided on the second sealing plate to cooperate with the end protection member.

[0010] The through-hole facilitates the connection between the fastener and the circuit breaker body, allowing the sealing mechanism to be fixed to the circuit breaker body, thus ensuring the sealing effect of the sealing mechanism. The slot design allows for more effective cooperation with the end protection component, enabling the end protection component to protect the ends of the conductors while cooperating with the sealing mechanism to achieve dust protection at the wiring points of the circuit breaker body.

[0011] Furthermore, when the limiting strip is located within the limiting groove, the outer surface of the second sealing plate is flush with the end face of the circuit breaker body.

[0012] The outer surface of the second sealing plate is flush with the end face of the circuit breaker body, which makes the molded case circuit breaker more aesthetically pleasing while ensuring that the sealing mechanism has good protective performance.

[0013] Furthermore, the end protection component includes a sealing end, a protective sleeve, and a wire hole. The sealing end and the protective sleeve are coaxially connected, and a wire hole for the wire to pass through is formed at the center of the sealing end and the protective sleeve. The sealing end and the sealing mechanism are sealed together.

[0014] In use, the wire is inserted through the through-hole inside the protective sleeve and exited through the through-hole on the sealed end. After connecting the wire to the circuit breaker body, the sealed end and the protective sleeve form a protective structure for the wire connection end. At the same time, the cooperation between the sealed end and the fastener forms a protective structure for the connection point of the circuit breaker body. Thus, the anti-aging protection of the wire end and the dust protection of the connection point of the circuit breaker body are integrated into one, which not only enhances the protection effect, but also has a higher degree of integration and can effectively reduce the size of the molded case circuit breaker.

[0015] Furthermore, a sealing groove is formed on the sealing end to seal and cooperate with the sealing mechanism.

[0016] By combining the sealing groove and the sealing mechanism, dust can be prevented from entering the gap between the sealing mechanism and the end protection component, further improving the dust protection effect at the wiring point.

[0017] Furthermore, the fixing component includes an operating knob and a screw. The bottom of the operating knob is connected to the screw, and the lower part of the screw passes through the sealing mechanism and is threadedly connected to a fixing hole opened on the circuit breaker body.

[0018] The screw can be driven up and down by turning the operating knob, so as to fix the sealing mechanism to the circuit breaker body or remove it from the circuit breaker body. Compared with the screw fixing method, the operation is more convenient and it is beneficial to the later maintenance of the molded case circuit breaker.

[0019] Furthermore, the circuit breaker body has wiring holes at both ends, and wiring posts are provided in the wiring holes. An adjustment hole is also provided on the circuit breaker body, and the adjustment part of the wiring post is located in the adjustment hole.

[0020] Based on the above structure, the connection between the line of sight and the circuit breaker body can be easily achieved.

[0021] Furthermore, the terminal block includes a fastening bolt, a first washer, and a second washer. The adjusting part of the fastening bolt is located in the adjusting hole, and the lower part of the fastening bolt extends into the terminal hole and is fixedly connected to the first washer. The second washer is fixedly installed at the bottom of the terminal hole directly below the first washer, and a temperature sensor is installed at the bottom of the second washer.

[0022] Tightening the fastening bolts moves the first washer closer to or further away from the second washer, thereby securing or loosening the wire. A temperature sensor monitors the temperature at the circuit breaker's wiring terminals to detect overload or poor contact caused by aging or excessive dust on the wire terminals.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] Not only does the end protection component conceal and protect the wire terminals from aging and corrosion caused by wind and sun, but the combination of the end protection component and the sealing mechanism also provides dust protection for the circuit breaker's wiring points. This effectively prevents external contaminants such as dust and moisture from entering the interior of the pipeline, thereby improving the stability and reliability of the circuit breaker device and extending its service life. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 for Figure 1 A schematic diagram of the structure after removing the sealing mechanism and end protectors;

[0027] Figure 3 This is a schematic diagram of the sealing mechanism;

[0028] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the end protection component.

[0030] The components in the diagram are as follows: 1. Circuit breaker body; 2. Sealing mechanism; 2.1 First sealing plate; 2.2 Second sealing plate; 2.3 Through hole; 2.4 Limiting strip; 2.5 Slot; 3. End protection component; 3.1 Sealing end; 3.2 Protective sleeve; 3.3 Wire hole; 3.4 Sealing groove; 4. Wire; 5. Fixing component; 5.1 Operating knob; 5.2 Screw; 6. Mounting notch; 7. Limiting groove; 8. Wiring hole; 9. Adjustment hole; 10. Terminal block; 10.1 Fastening bolt; 10.2 First gasket; 10.3 Second gasket; 11. Temperature sensor. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention. Example

[0032] like Figures 1-5 As shown, this embodiment provides an IoT-based molded case circuit breaker, including a circuit breaker body 1, a sealing mechanism 2, an end protection component 3, and a fixing component 5. U-shaped mounting notches 6 are provided at both ends of the circuit breaker body 1, and limiting grooves 7 are provided on both opposite sides of the mounting notches 6. The sealing mechanism 2 slides within the limiting grooves 7 on both sides. The sealing mechanism 2 is detachably connected to the circuit breaker body 1 via the fixing component 5. A wire 4 is threaded through the end protection component 3. When the wire 4 is connected to the circuit breaker body 1, the end protection component 3 and the sealing mechanism 2 cooperate to form a protective structure covering the wiring points of the circuit breaker body 1.

[0033] In this embodiment, the end protector 3 and the sealing mechanism 2 work together to form a protective junction covering the wiring point of the circuit breaker body 1. The end protector 3 not only hides and protects the wiring end of the conductor 4 from aging and corrosion caused by wind and sun, but also provides dust protection for the wiring point of the circuit breaker body 1 through the cooperation of the end protector 3 and the sealing mechanism 2. This can effectively prevent external pollutants such as dust and water vapor from entering the interior of the circuit breaker, thereby effectively improving the stability and reliability of the circuit breaker device and extending its service life.

[0034] See appendix Figure 3 The sealing mechanism 2 includes a first sealing plate 2.1, a second sealing plate 2.2, and a limiting strip 2.4. The second sealing plate 2.2 is vertically connected to one side edge of the first sealing plate 2.1. After connection, the first sealing plate 2.1 and the second sealing plate 2.2 form an L-shaped structure, which fits the shape of the end wiring of the existing circuit breaker body 1. The limiting strip 2.4 is formed by the two sides of the second sealing plate 2.2 extending outward. The limiting strip 2.4 and the limiting groove 7 are slidably engaged. A through hole 2.3 is provided on the first sealing plate 2.1 to cooperate with the fixing member 5. A slot 2.5 is provided on the second sealing plate 2.2 to cooperate with the end protection member 3.

[0035] When the sealing mechanism 2 covers the wiring point of the circuit breaker body 1, the first sealing plate 2.1 covers the top of the wiring point, and the second sealing plate 2.2 covers the end face of the wiring point. With the cooperation of the limiting strip 2.4 and the limiting groove 7, a sealed cavity is formed at the wiring point of the circuit breaker body 1, effectively protecting the wiring point of the circuit breaker body 1 from dust. This effectively prevents external contaminants such as dust and moisture from entering the interior of the pipeline, thereby improving the stability and reliability of the circuit breaker device and extending its service life. The through hole 2.3 is provided to facilitate the connection between the fixing part 5 and the circuit breaker body 1, fixing the sealing mechanism 2 onto the circuit breaker body 1, thus ensuring the sealing effect of the sealing mechanism 2. The slot 2.5 allows for more effective cooperation with the end protection part 3, enabling the end of the conductor 4 to be protected by the end protection part 3, while also cooperating with the sealing mechanism 2 to achieve dust protection at the wiring point of the circuit breaker body 1.

[0036] Preferably, when the limiting strip 2.4 is limited within the limiting groove 7, the first sealing plate 2.1 fully covers the control surface of the terminal block 10 formed on the upper surface of the circuit breaker body 1, and the outer surface of the second sealing plate 2.2 is flush with the end face of the circuit breaker body 1.

[0037] By using a first sealing plate 2.1 to fully cover the control surface of the wiring terminal of the circuit breaker body 1, and the outer surface of the second sealing plate 2.2 to be flush with the end face of the circuit breaker body 1, the molded case circuit breaker can be made more aesthetically pleasing while ensuring that the sealing mechanism 2 has good protective performance.

[0038] See appendix Figure 4 The fixing component 5 includes an operating knob 5.1 and a screw 5.2. The bottom of the operating knob 5.1 is connected to the screw 5.2. The lower part of the screw 5.2 passes through the through hole 2.3 on the sealing mechanism 2 and is threadedly connected to the fixing hole on the circuit breaker body 1. It should be noted that the size of the operating knob 5.1 is larger than the through hole 2.3, and the size of the screw 5.2 is smaller than the through hole 2.3.

[0039] The screw 5.2 can be driven up and down by turning the operating knob 5.1, so as to fix the sealing mechanism 2 to the circuit breaker body 1 or remove it from the circuit breaker body 1. Compared with the screw fixing method, the operation is more convenient and facilitates the later maintenance of the molded case circuit breaker. In order to ensure structural strength and service life, the screw 5.2 is made of metal, and the operating knob 5.1 is made of hard plastic to ensure safety during use.

[0040] from Figure 4 It can also be seen that wiring holes 8 are provided at both ends of the circuit breaker body 1, and wiring posts 10 are provided in the wiring holes 8. Adjustment holes 9 are also provided on the circuit breaker body 1. The adjustment part of the wiring post 10 is located in the adjustment hole 9. The wiring post 10 includes a fastening bolt 10.1, a first washer 10.2, and a second washer 10.3. The adjustment part of the fastening bolt 10.1 is located in the adjustment hole 9. The lower part of the fastening bolt 10.1 extends into the wiring hole 8 and is fixedly connected to the first washer 10.2. The second washer 10.3 is fixedly installed at the bottom of the wiring hole 8 directly below the first washer 10.2. A temperature sensor 11 is installed at the bottom of the second washer 10.3.

[0041] Based on the above structure, it can be seen that by tightening the fastening bolt 10.1, the first washer 10.2 can be moved closer to or away from the second washer 10.3, thereby fixing or loosening the wire 4. The temperature sensor 11 detects the temperature at the wiring point of the circuit breaker body 1 to monitor whether the wiring terminal of the wire 4 is aging or has excessive dust, causing overload or poor contact.

[0042] Furthermore, since this embodiment is an improvement on a traditional molded case circuit breaker with communication function, this molded case circuit breaker has a processor and a communication module. Temperature sensor 11 collects data, and the processor, through the signal from temperature sensor 11 and after AD sampling, can calculate the real-time temperature value of the conductor 4's terminal. The temperature value can then be used to determine whether the conductor 4's terminal is aging or has excessive dust causing overload, poor contact, or other issues. The judgment can then be uploaded or sent to an alarm device via the communication module. The temperature calculation process is conventional and will not be elaborated here. In specific implementations, the temperature sensor 11 can be a Pt100 platinum resistance temperature sensor. To ensure better fixation and heat transfer, both the first gasket 10.2 and the second gasket 10.3 are made of metal.

[0043] See appendix Figure 5 The end protection component 3 includes a sealing end 3.1, a protective sleeve 3.2, and a wire hole 3.3. The sealing end 3.1 and the protective sleeve 3.2 are coaxially connected, and a wire hole 3.3 for the wire 4 to pass through is formed at the center of the sealing end 3.1 and the protective sleeve 3.2. The sealing end 3.1 and the sealing mechanism 2 are sealed together.

[0044] In use, the wire 4 is inserted through the wire hole 3.3 inside the protective sleeve 3.2 and exits through the wire hole 3.3 of the sealing end 3.1. After the wire 4 is connected to the circuit breaker body 1, the sealing end 3.1 and the protective sleeve 3.2 form a protective structure for the wiring end of the wire 4. At the same time, the sealing end 3.1 and the slot 2.5 on the sealing structure 2 cooperate to form a protective structure for the wiring point of the circuit breaker body 1. Thus, the anti-aging protection of the wire end and the dust protection of the wiring point of the circuit breaker body 1 are integrated into one, which not only enhances the protection effect, but also has a higher degree of integration and can effectively reduce the size of the molded case circuit breaker.

[0045] Furthermore, a sealing groove 3.4 is formed on the sealing end 3.1 to seal with the sealing mechanism 2. Through the cooperation between the sealing groove 3.4 and the sealing mechanism 2, dust can be prevented from entering the gap between the sealing mechanism 2 and the end protection member 3, further improving the dust protection effect at the wiring point.

[0046] In specific implementation, the protective sleeve 3.2 adopts heat shrink tubing, which not only adapts to wires 4 of different diameters, but also allows it to fit more closely to the wires 4 after the wiring is completed and the wires are heated, thereby further improving the anti-aging effect of the wire 4 ends and the dust protection effect of the circuit breaker body 1.

[0047] The working principle of this application is as follows:

[0048] Turn the operating knob 5.1 to separate the fixing part 5 from the circuit breaker body 1 and remove the sealing mechanism 2;

[0049] Insert the wire 4 through the wire hole 3.3 inside the protective sleeve 3.2 and out through the wire hole 3.3 of the sealing end 3.1, and then fix the wire 4 in the wiring hole 8 through the terminal 10;

[0050] Insert the limiting strips 2.4 on both sides of the sealing mechanism 2 into the limiting groove 7, and then slide the sealing mechanism 2 downward so that the slot 2.5 is inserted into the sealing groove 3.4 until the sealing mechanism 2 slides to the bottom of the limiting groove 7 or is completely in contact with the end protection member 3 and cannot move.

[0051] The screw 5.2 is passed through the through hole 2.3 and inserted into the fixing hole of the circuit breaker body 1. The operating knob 5.1 is turned to drive the screw 5.2 to move downward, thereby fixing the sealing mechanism 2 on the circuit breaker body 1. The end protection member 3 and the sealing mechanism 2 cooperate to form a protective structure covering the wiring of the circuit breaker body 1.

[0052] In summary, the molded case circuit breaker described in this application not only conceals and protects the terminals of the conductors 4 through the end protection component 3, preventing them from aging and corrosion due to wind and sun exposure, but also provides dust protection for the wiring points of the circuit breaker body 1 through the cooperation of the end protection component 3 and the sealing mechanism 2. This effectively prevents external pollutants such as dust and moisture from entering the interior of the pipeline, thereby improving the stability and reliability of the circuit breaker device and extending its service life.

Claims

1. A molded case circuit breaker based on the Internet of Things, comprising a circuit breaker body (1), characterized in that: It also includes a sealing mechanism (2), an end protection component (3), and a fixing component (5). U-shaped installation notches (6) are provided at both ends of the circuit breaker body (1). Limiting grooves (7) are provided on both opposite sides of the installation notches (6). The two sides of the sealing mechanism (2) are slidably limited within the limiting grooves (7). The sealing mechanism (2) is detachably connected to the circuit breaker body (1) through the fixing component (5). A wire (4) is threaded through the end protection component (3). When the wire (4) is connected to the circuit breaker body (1), the end protection component (3) and the sealing mechanism (2) cooperate to form a protective structure covering the wiring of the circuit breaker body (1).

2. The molded case circuit breaker based on the Internet of Things according to claim 1, characterized in that: The sealing mechanism (2) includes a first sealing plate (2.1), a second sealing plate (2.2) and a limiting strip (2.4). The second sealing plate (2.2) is vertically connected to one side edge of the first sealing plate (2.1). The limiting strip (2.4) is formed by extending outward from both sides of the second sealing plate (2.2). The limiting strip (2.4) and the limiting groove (7) are in sliding cooperation.

3. The molded case circuit breaker based on the Internet of Things according to claim 2, characterized in that: A through hole (2.3) is provided on the first sealing plate (2.1) to cooperate with the fixing member (5), and a slot (2.5) is provided on the second sealing plate (2.2) to cooperate with the end protection member (3).

4. The molded case circuit breaker based on the Internet of Things according to claim 2, characterized in that: When the limiting strip (2.4) is positioned within the limiting groove (7), the outer surface of the second sealing plate (2.2) is flush with the end face of the circuit breaker body (1).

5. The molded case circuit breaker based on the Internet of Things according to claim 1, characterized in that: The end protection component (3) includes a sealing end (3.1), a protective sleeve (3.2), and a wire hole (3.3). The sealing end (3.1) and the protective sleeve (3.2) are coaxially connected. A wire hole (3.3) for the wire (4) to pass through is formed at the center of the sealing end (3.1) and the protective sleeve (3.2). The sealing end (3.1) and the sealing mechanism (2) are sealed together.

6. The molded case circuit breaker based on the Internet of Things according to claim 5, characterized in that: A sealing groove (3.4) is formed on the sealing end (3.1) to seal with the sealing mechanism (2).

7. The molded case circuit breaker based on the Internet of Things according to claim 1, characterized in that: The fixing component (5) includes an operating knob (5.1) and a screw (5.2). The bottom of the operating knob (5.1) is connected to the screw (5.2). The lower part of the screw (5.2) passes through the sealing mechanism (2) and is threadedly connected to the fixing hole opened on the circuit breaker body (1).

8. The IoT-based molded case circuit breaker according to any one of claims 1-7, characterized in that: The circuit breaker body (1) has wiring holes (8) at both ends, and wiring posts (10) are provided in the wiring holes (8). An adjustment hole (9) is also provided on the circuit breaker body (1), and the adjustment part of the wiring post (10) is located in the adjustment hole (9).

9. The molded case circuit breaker based on the Internet of Things according to claim 8, characterized in that: The terminal block (10) includes a fastening bolt (10.1), a first washer (10.2), and a second washer (10.3). The adjusting part of the fastening bolt (10.1) is located in the adjusting hole (9). The lower part of the fastening bolt (10.1) extends into the wiring hole (8) and is fixedly connected to the first washer (10.2). The second washer (10.3) is fixedly installed at the bottom of the wiring hole (8) directly below the first washer (10.2). A temperature sensor (11) is installed at the bottom of the second washer (10.3).

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