Embedded circuit breaker

Abstract

The embedded circuit breaker comprises a shell and a circuit breaker body, the circuit breaker body is installed in the shell, clamping blocks are fixedly installed on the upper portion and the lower portion of the back face of the circuit breaker body, installation grooves are formed in the upper portion and the lower portion of the inner wall of the back face of the shell, and installation shells are fixedly installed in the installation grooves. A movable plate is slidably connected into the mounting shell, an extrusion block is welded to one side of the movable plate, clamping plates are mounted on the side walls of the two sides of the extrusion block, hinge plates are hinged to the side walls of the two sides of the movable plate, limiting rods are fixedly mounted on one sides of the hinge plates, and grooves are formed in the inner walls of the two sides of the mounting shell. And a special-shaped block is welded on the inner wall of one side of the groove. According to the embedded circuit breaker, by arranging the hinge plate, the limiting rod, the special-shaped block, the clamping plate, the clamping block and the like, the purpose of conveniently mounting and dismounting the circuit breaker body can be achieved, maintenance and replacement are facilitated, and damage to the circuit breaker is reduced.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, specifically to an embedded circuit breaker. Background Technology

[0002] Embedded circuit breakers, as important protective devices in power systems, are widely used in building power distribution, industrial control, and other fields. Their core function is to monitor the circuit status in real time and quickly cut off the power supply in case of overload or short circuit, ensuring electrical safety. However, traditional embedded circuit breakers still have significant drawbacks, such as low installation and maintenance efficiency. The installation of traditional circuit breakers mostly relies on screw fastening or fixing through clips and slots. The operation process requires special tools, which is difficult and time-consuming, especially in confined spaces. Later maintenance or replacement is also complicated by disassembly steps, which can easily damage components. To address these potential problems, we propose an embedded circuit breaker. Utility Model Content

[0003] The purpose of this utility model is to provide an embedded circuit breaker to address the shortcomings of the existing technology and solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an embedded circuit breaker, comprising a housing and a circuit breaker body, wherein the circuit breaker body is installed inside the housing, and a locking block is fixedly installed on the upper and lower parts of the back of the circuit breaker body; an installation groove is provided on the upper and lower parts of the inner wall of the back of the housing, and an installation shell is fixedly installed in the installation groove; a movable plate is slidably connected inside the installation shell; a pressing block is welded to one side of the movable plate; locking plates are installed on both side walls of the pressing block; hinge plates are hinged to both side walls of the movable plate; a limit rod is fixedly installed on one side of the hinge plate; grooves are provided on both inner walls of the installation shell, and a shaped block is welded to one inner wall of one side of the groove; a limit block is provided on one side of the bottom inner wall of the grooves on both sides of the installation shell.

[0005] As a preferred embodiment of this utility model, mounting plates are welded to the upper part of both side walls of the movable plate, and compression springs are fixedly installed on the side of the mounting plate that is close to the hinge plate.

[0006] As a preferred embodiment of this utility model, one side of the irregularly shaped block is inclined, and the back of the irregularly shaped block is stepped.

[0007] As a preferred technical solution of this utility model, the bottom inner wall of the grooves on both sides of the mounting shell is provided with a cavity, and two first springs are installed in the cavity, with a limit plate installed at the top of the two first springs.

[0008] As a preferred embodiment of this utility model, the limiting block is fixedly installed on the top surface of the limiting plate, the top of the limiting block extends through and into the groove opened in the mounting shell, and the top of the limiting block is arc-shaped.

[0009] As a preferred embodiment of this utility model, a second spring is fixedly installed on the inner wall of the back side of the mounting shell, and the other end of the second spring is fixedly connected to one side of the movable plate.

[0010] As a preferred embodiment of this utility model, wiring holes are provided at the top and bottom of the housing, and heat dissipation mesh holes are installed on both sides of the housing.

[0011] Compared with the prior art, the present invention provides an embedded circuit breaker, which has the following advantages:

[0012] 1. This embedded circuit breaker, by setting a hinge plate, a limiting rod, a special-shaped block, a locking plate, and a locking block, etc., when the circuit breaker body is inserted into the housing, the locking block installed on the back of the circuit breaker body aligns with the opening of the mounting housing and is pushed in. The locking block contacts the pressing block and presses the pressing block, thereby enabling the locking plate to move into the mounting housing. At this time, the locking plate can lock the two sides of the locking block. After the pressing block is pressed, it will drive the moving plate to move backward, and the hinge plate will move with the moving plate. The limiting rod installed on the hinge plate will slide along the upper inclined surface of the special-shaped block until it is locked into the stepped groove on the back of the special-shaped block. At this time, the limiting rod is limited by the special-shaped block. At this time, the locking plate will retract into the mounting housing and can lock the locking block tightly. At this time, the circuit breaker body can be firmly fixed in the housing.

[0013] 2. This embedded circuit breaker, by setting a hinge plate, a limiting rod, a shaped block, a locking plate, and a locking block, allows for easy disassembly of the circuit breaker body. Pressing the circuit breaker body compresses the pressing block via the locking block, causing the moving plate to move. This, in turn, moves the hinge plate, allowing the limiting rod to disengage from the stepped groove on the back of the shaped block. Under the action of the compression spring, the limiting rod moves to the lower part of the shaped block. A second spring then compresses the moving plate, causing it to move forward, allowing the limiting rod to move forward from the lower part of the shaped block. Simultaneously, the limiting block is compressed downwards. When the limiting rod reaches the top of the limiting block, the first spring and the limiting plate lift the limiting rod to the inclined surface of the shaped block. At this point, the locking plate opens to both sides and disengages from the locking block, allowing the circuit breaker body to be easily pulled out of the housing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2This is a schematic cross-sectional view of the shell structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the side and top cross-sectional structure of the mounting shell of this utility model;

[0017] Figure 4 This is a schematic diagram of the back structure of the circuit breaker body of this utility model.

[0018] Reference numerals in the attached drawings: 1. Housing; 2. Circuit breaker body; 3. Heat dissipation mesh; 4. Mounting shell; 5. Clamping plate; 6. Compression block; 7. Moving plate; 8. Hinge plate; 9. Limiting block; 10. First spring; 11. Limiting plate; 12. Irregularly shaped block; 13. Compression spring; 14. Limiting rod; 15. Mounting plate; 16. Second spring; 17. Clamping block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4 In this embodiment: an embedded circuit breaker includes a housing 1 and a detachable circuit breaker body 2. Mounting grooves are opened on the upper and lower inner walls on the back of the housing 1. The mounting shell 4 is embedded and fixed in the groove. Grooves are opened on the inner walls on both sides of the mounting shell 4. A shaped block 12 is welded to the inner wall of one side of the groove. A cavity is provided on the inner wall of the bottom of the groove, and two first springs 10 are built in. The top is connected to the limiting block 9 through the limiting plate 11. The top of the limiting block 9 is arc-shaped and extends into the groove.

[0021] The movable plate 7 is slidably installed inside the mounting shell 4. An extrusion block 6 is welded to one side of the movable plate 7. Clamping plates 5 are installed on both sides of the extrusion block 6. The connection between the clamping plates 5 and the extrusion block 6 is flexible. When the clamping plates 5 extend out of the mounting shell 4, they will open to both sides. The movable plate 7 is connected to the hinge plate 8 on both sides by a hinge shaft. A limiting rod 14 is fixed at the end of the hinge plate 8. Mounting plates 15 are welded to the upper part of both sides of the movable plate 7. The mounting plates 15 and the hinge plates 8 are connected by a compression spring 13. A second spring 16 is provided on the inner wall of the back of the mounting shell 4. One end of the second spring 16 is fixed to the back of the movable plate 7.

[0022] The circuit breaker body 2 has symmetrically welded clips 17 on the back. The shape of the clips 17 matches the opening of the inner plate 5 of the mounting shell 4. Wiring holes are opened at the top and bottom of the shell 1, and heat dissipation mesh holes 3 are installed on both sides to dissipate heat from the installed circuit breaker body 2.

[0023] The working principle and usage process of this utility model: When the embedded circuit breaker is not installed, the second spring 16 is in a natural state, the moving plate 7 is located at the front end of the mounting shell 4, the limiting rod 14 is pressed against the upper inclined surface of the irregular block 12 due to the tension of the compression spring 13, and the limiting block 9 protrudes into the groove opened in the mounting shell 4 under the support of the first spring 10.

[0024] When the circuit breaker body 2 is inserted into the housing 1, the locking block 17 installed on the back of the circuit breaker body 2 is aligned with the opening of the mounting housing 4 and pushed in. The locking block 17 contacts the pressing block 6 and presses the pressing block 6, thereby allowing the locking plate 5 to move into the mounting housing 4. At this time, the locking plate 5 can lock the two sides of the locking block 17. After the pressing block 6 is pressed, it will drive the moving plate 7 to move backward, and the hinge plate 8 will move with the moving plate 7. The limiting rod 14 installed on the hinge plate 8 will slide along the upper inclined surface of the irregular block 12 until it is locked into the stepped groove on the back of the irregular block 12. At this time, the limiting rod 14 is limited by the irregular block 12. At this time, the locking plate 5 will retract into the mounting housing 4 and can tightly lock the locking block 17. At this time, the circuit breaker body 2 can be firmly fixed in the housing 1.

[0025] To disassemble the circuit breaker body 2, the circuit breaker body 2 can be pressed. At this time, the clamping block 17 can press the pressing block 6, which in turn can move the moving plate 7. This can drive the hinge plate 8 to move, allowing the limiting rod 14 to disengage from the stepped groove on the back of the irregular block 12. Under the action of the compression spring 13, the limiting rod 14 will move to the lower part of the irregular block 12. At this time, under the pressure of the second spring 16, the moving plate 7 can move, which can then move the limiting rod 14 forward from the lower part of the irregular block 12. At the same time, the limiting block 9 can be pressed downward. When the limiting rod 14 moves to the top of the limiting block 9, under the action of the first spring 10 and the limiting plate 11, the limiting rod 14 can be lifted to the inclined surface of the irregular block 12. At this time, the clamping plate 5 will open to both sides and disengage from the clamping block 17. At this time, the circuit breaker body 2 can be easily pulled out from the housing 1.

[0026] The heat dissipation mesh holes 3 on both sides of the housing 1 form a horizontal airflow channel, and the wiring holes at the top and bottom of the housing 1 can also dissipate heat from the circuit breaker body 2, reducing the temperature of the internal components of the circuit breaker body 2.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An embedded circuit breaker comprising a housing (1) and a circuit breaker body (2), characterized in that: The circuit breaker body (2) is installed in the shell (1), the back upper part and lower part of the circuit breaker body (2) are fixedly installed with the clamping block (17), the back inner wall upper part and lower part of the shell (1) are provided with the installation groove, and the installation groove is fixedly installed with the installation shell (4), the inside of the installation shell (4) is slidably connected with the moving plate (7), one side of the moving plate (7) is welded with the extrusion block (6), the both sides of the extrusion block (6) are provided with the clamping plate (5), the both sides of the moving plate (7) are hingedly connected with the hinged plate (8), one side of the hinged plate (8) is fixedly installed with the limiting rod (14), the both sides of the installation shell (4) are provided with the recess, and one side of the recess is welded with the special-shaped block (12), the bottom inner wall of the recess of the both sides of the installation shell (4) is provided with the limiting block (9).

2. An enclosed circuit breaker according to claim 1, wherein: The both sides of the moving plate (7) are welded with the mounting plate (15), and the mounting plate (15) and the hinged plate (8) are fixedly installed with the extrusion spring (13) on the side close to each other.

3. An enclosed circuit breaker according to claim 1, wherein: The side of the special-shaped block (12) is provided in an inclined manner, and the back of the special-shaped block (12) is designed in a stepped manner.

4. An enclosed circuit breaker according to claim 1 wherein: The bottom inner wall of the recess of the both sides of the installation shell (4) is provided with the cavity, and two first springs (10) are installed in the cavity.

5. An enclosed circuit breaker according to claim 1 wherein: The limiting block (9) is fixedly installed on the top surface of the limiting plate (11), the top of the limiting block (9) penetrates and extends into the recess of the installation shell (4), and the top of the limiting block (9) is in an arc shape.

6. An enclosed circuit breaker according to claim 1 wherein: The back inner wall of the installation shell (4) is fixedly installed with the second spring (16), and the other end of the second spring (16) is fixedly connected with one side of the moving plate (7).

7. An enclosed circuit breaker according to claim 1 wherein: The top and bottom of the shell (1) are provided with wiring holes, and the both sides of the shell (1) are installed with the heat dissipation mesh (3).

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