Electronic molded case circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, in particular to an electronic molded case circuit breaker, which comprises an electronic circuit breaker body, mounting mechanisms are mounted on two sides of the electronic circuit breaker body, positioning blocks are fixedly connected to upper and lower sides of two sides of the electronic circuit breaker body, and through holes are formed in inner cavities of the positioning blocks. An inner cavity of the positioning block on the upper side is movably connected with a screw rod, the surface of the screw rod is in threaded connection with a threaded sleeve, and the surface of the threaded sleeve is movably connected with an inner cavity of the positioning block on the lower side. According to the scheme, a user can make the protective shell abut against the surface of the electronic circuit breaker body, meanwhile, the L-shaped plate enters the position between the two positioning blocks, then the screw rod and the threaded sleeve are inserted into the L-shaped plate from the through holes in the positioning blocks respectively, then rotary connection is conducted, the L-shaped plate is installed in a limited mode, and the operation is convenient. Afterwards, the user moves one side of each of the two protective shells to the middle of the electronic circuit breaker body, and then the protective shells are fixed through a fixing structure, thereby achieving the protection of the external switch.

Description

Technical Field

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

[0002] A circuit breaker is a switching device that can connect and disconnect current under normal circuit conditions as well as under abnormal circuit conditions. It is widely used in power distribution systems to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. When power lines and motors experience serious overloads, short circuits, or undervoltage faults, the circuit breaker can automatically disconnect the circuit. After disconnecting the fault current, it generally does not require replacement of parts.

[0003] In terms of protection performance, traditional circuit breaker designs expose the external switch directly to the environment. In industrial environments with high dust levels or chemical corrosion, the long-term reliability and lifespan of the external electronic components may be affected by contaminants such as dust and moisture. If dust or moisture enters the circuit breaker switch contacts and terminal areas, it can lead to problems such as poor contact, decreased conductivity, and increased equipment maintenance costs. Therefore, a circuit breaker that can protect the external switch is needed. Utility Model Content

[0004] The purpose of this invention is to provide an electronic molded case circuit breaker to solve the problem mentioned in the background art that traditionally designed circuit breakers cannot protect external switches.

[0005] To achieve the above objectives, this utility model provides the following technical solution, including an electronic circuit breaker body. Mounting mechanisms are installed on both sides of the electronic circuit breaker body. Positioning blocks are fixedly connected to the upper and lower sides of both sides of the electronic circuit breaker body. A through hole is opened in the inner cavity of each positioning block. A spiral rod is movably connected to the inner cavity of the upper positioning block. A threaded sleeve is threadedly connected to the surface of the spiral rod. The surface of the threaded sleeve is movably connected to the inner cavity of the lower positioning block. L-shaped plates are attached to the surfaces of the spiral rod and the threaded sleeve. Protective shells are fixedly connected between the two L-shaped plates. The two protective shells are connected by a fixing structure on the upper and lower sides. The protective shells are made of aluminum alloy.

[0006] Preferably, the fixing structure includes a fixing shell, two fixing shells are fixedly connected to the left protective shell, a hexagonal screw is threaded to the left side of the fixing shell, the right side of the hexagonal screw extends into the interior of the fixing shell and is threadedly connected to a movable plate, a fixing block is tightly fitted to the right side of the movable plate, two fixing blocks are fixedly connected to the right fixing shell, a positioning strip is movably connected to the inner cavity of the fixing block, and the left side of the positioning strip is fixedly connected to the movable plate.

[0007] Preferably, limiting grooves are provided on both the front and rear sides of the inner cavity of the fixed shell, and a limiting block is movably connected to the right side of the inner cavity of the limiting groove. The two limiting blocks are fixedly connected to the movable plate relative to each other.

[0008] Preferably, reinforcing blocks are fixedly connected to both the front and rear sides of the fixing block, and the reinforcing blocks are fixedly connected to the right-side fixing shell.

[0009] Preferably, the mounting mechanism includes mounting plates, two mounting plates are fixedly connected to the electronic circuit breaker body, and the mounting plates include threaded holes that match bolts.

[0010] Preferably, rubber pads are provided at all four corners of the surface of the electronic circuit breaker body, and the outer surface of the rubber pads is provided with wavy anti-slip protrusions.

[0011] Preferably, both of the protective shells have windows on their front sides, and the inner cavity of the windows is fitted with polycarbonate plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This solution allows the user to place the protective shell against the surface of the electronic circuit breaker body, while the L-shaped plate is inserted between two positioning blocks. Then, the spiral rod and threaded sleeve are inserted into the L-shaped plate through the through holes on the positioning blocks, and then rotated to connect and limit the L-shaped plate installation. Afterward, the user moves one side of the two protective shells towards the middle of the electronic circuit breaker body and fixes them with a fixing structure, thus completing the problem of protecting the external switch. Attached Figure Description

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

[0015] Figure 2 This is an exploded view of the structure of this utility model;

[0016] Figure 3 This is a partial structural cross-sectional view of the present invention;

[0017] Figure 4 This is a partial structural side view of the present invention.

[0018] In the diagram: 1. Electronic circuit breaker body; 2. Mounting mechanism; 201. Mounting plate; 202. Threaded hole; 3. Positioning block; 4. Helical rod; 5. Threaded sleeve; 6. L-shaped plate; 7. Protective shell; 8. Fixed shell; 9. Hexagonal screw; 10. Movable plate; 11. Fixed block; 12. Positioning strip; 13. Limiting block; 14. Reinforcing block; 15. Rubber pad; 16. Polycarbonate plate. 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] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Example 1:

[0022] Please see Figure 1-4 This utility model provides a technical solution: an electronic molded case circuit breaker, including an electronic circuit breaker body 1, with mounting mechanisms 2 installed on both sides of the electronic circuit breaker body 1, and positioning blocks 3 fixedly connected to the upper and lower sides of both sides of the electronic circuit breaker body 1. The inner cavity of the positioning block 3 has a through hole, and a spiral rod 4 is movably connected to the inner cavity of the upper positioning block 3. A threaded sleeve 5 is threadedly connected to the surface of the spiral rod 4, and the surface of the threaded sleeve 5 is movably connected to the inner cavity of the lower positioning block 3. An L-shaped plate 6 is attached to the surfaces of the spiral rod 4 and the threaded sleeve 5, and a protective shell 7 is fixedly connected between the two L-shaped plates 6. The two protective shells 7 are connected to each other by a fixing structure on the upper and lower sides, and the material of the protective shell 7 is aluminum alloy.

[0023] Analysis of the above content: When the user needs to protect the external switch on the surface of the electronic molded case circuit breaker, one of the protective shells 7 is placed against the surface of the electronic circuit breaker body 1 (Note: The internal circuit composition of the electronic molded case circuit breaker body 1 has not been changed; it is a conventional electronic molded case circuit breaker. The dimensions and shapes of the positioning block 3, spiral rod 4, threaded sleeve 5, L-shaped plate 6, and protective shell 7 are adjusted according to the model of the electronic molded case circuit breaker body 1). The protective shell 7 is made of aluminum alloy, which has good heat dissipation and high strength, effectively preventing external switches from being switched. Simultaneously, the protective shell 7 inserts the L-shaped plate 6 between the upper and lower positioning blocks 3. Then, the user first inserts the threaded sleeve 5... After inserting the through hole on the positioning block 3, the user inserts the screw rod 4 into the through hole on another positioning block 3, so that both enter the L-shaped plate 6. If the screw rod 4 and the threaded sleeve 5 are aligned vertically, the user rotates the screw rod 4 to rotate it into the threaded sleeve 5. When it rotates to a certain position, the screw rod 4 and the threaded sleeve 5 are connected, and the L-shaped plate 6 is fixed between the two positioning blocks 3. The other protective shell 7 is installed in the same way. Then the user moves one side of the two protective shells 7 toward the middle of the electronic circuit breaker body 1 so that the two protective shells 7 are in a parallel state. Then they are fixed by the fixing structure to isolate the external switch on the electronic molded case circuit breaker from the outside world, thereby completing the problem of protecting the external switch.

[0024] Example 2:

[0025] Please see Figure 1-4 This utility model provides a technical solution based on Embodiment 1: The fixing structure includes a fixing shell 8, two fixing shells 8 are fixedly connected to the left protective shell 7, the left side of the fixing shell 8 is threaded with a hexagonal screw 9, the right side of the hexagonal screw 9 extends into the interior of the fixing shell 8 and is threadedly connected with a movable plate 10, the right side of the movable plate 10 is tightly fitted with a fixing block 11, two fixing blocks 11 are fixedly connected to the right fixing shell 8, the inner cavity of the fixing block 11 is movably connected with a positioning strip 12, the left side of the positioning strip 12 is fixedly connected to the movable plate 10.

[0026] Analysis of the above: When the two protective shells 7 are combined into a parallel state, the user rotates the hexagonal screw 9. During the rotation of the hexagonal screw 9, the movable plate 10 moves within the fixed shell 8. The movable plate 10 moves the two positioning strips 12 into the inner cavity of the fixed block 11. When it moves to the designated position, the movable plate 10 abuts against the fixed block 11. Then the user stops rotating the hexagonal screw 9, fixing the movable plate 10, thereby fixing the two protective shells 7 and keeping them in a parallel state so that they will not open due to accidental collision.

[0027] Example 3:

[0028] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: limiting grooves are provided on both the front and rear sides of the inner cavity of the fixed shell 8, and limiting blocks 13 are movably connected to the right side of the inner cavity of the limiting grooves. The two limiting blocks 13 are fixedly connected to the movable plate 10 relative to each other.

[0029] Analysis of the above content: By setting the limit groove and the limit block 13 in combination, the limit groove limits the limit block 13 in a fixed movement trajectory, while the limit block 13 indirectly limits the movable plate 10, so that it will not be misaligned.

[0030] Example 4:

[0031] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: the front and rear sides of the fixing block 11 are fixedly connected with reinforcing blocks 14, and the reinforcing blocks 14 are fixedly connected with the right side fixing shell 8.

[0032] Analysis of the above content: By setting the reinforcing block 14 to reinforce the connection between the fixing block 11 and the right fixing shell 8, the connection between the two will not expand due to vibration and stress during long-term use, preventing the fixing block 11 from falling off the right fixing shell 8 and improving the structural stability.

[0033] Example 5:

[0034] Please see Figure 1-4 The present invention provides a technical solution based on Embodiment 1: the installation mechanism 2 includes an installation plate 201, two installation plates 201 are fixedly connected to the electronic circuit breaker body 1, and the installation plate 201 includes threaded holes 202 that match the bolts.

[0035] Analysis of the above content: When installing the circuit breaker on the wall, the user only needs to align the mounting plate 201 with the threaded hole 202 on the installation position, making it parallel to the threaded hole 202 on its own surface, and then simply screw the bolt into the threaded hole 202 to connect the mounting plate 201 to the wall, thereby completing the installation.

[0036] Example 6:

[0037] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: rubber pads 15 are provided at the four corners of the surface of the electronic circuit breaker body 1, and the outer surface of the rubber pads 15 is provided with wavy anti-slip protrusions.

[0038] Analysis of the above content: By setting rubber pads 15 to protect the four corners of the electronic circuit breaker body 1, it is possible to prevent the electronic circuit breaker body 1 from being accidentally bumped and damaged during installation. In addition, the wavy anti-slip protrusions on the surface can improve the anti-slip performance of the rubber pads 15 and buffer external impact forces.

[0039] Example 7:

[0040] Please see Figure 1-4 Based on Embodiment 1, this utility model provides a technical solution: windows are provided on the front sides of both protective shells 7, and polycarbonate plates 16 are installed in the inner cavities of the windows.

[0041] Analysis of the above content: The polycarbonate plate 16 can be installed in the window opened on the surface of the protective shell 7. The polycarbonate plate 16 itself has high hardness, which can protect the external switch well. Moreover, its transparency allows the user to observe the status of the external switch without opening the protective shell 7.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electronic molded case circuit breaker, characterized by, Include: Electronic circuit breaker body (1), both sides of the electronic circuit breaker body (1) are provided with mounting mechanism (2), both sides of the electronic circuit breaker body (1) are fixedly connected with positioning block (3), the inner cavity of positioning block (3) is provided with through hole, the inner cavity of the upper positioning block (3) is movably connected with screw rod (4), the surface of screw rod (4) is threadedly connected with threaded sleeve (5), the surface of threaded sleeve (5) is movably connected with the inner cavity of lower positioning block (3), the surface of screw rod (4) and threaded sleeve (5) is attached with L-shaped plate (6), both the L-shaped plates (6) are fixedly connected with protective shell (7) between them, two protective shells (7) are connected by the fixing structure on the upper and lower sides, the material of protective shell (7) is aluminum alloy.

2. The electronic molded case circuit breaker of claim 1, wherein: The fixing structure includes fixed shell (8), both the fixed shells (8) are fixedly connected with the left protective shell (7) between them, the left side of fixed shell (8) is threadedly connected with hexagonal screw (9), the right side of hexagonal screw (9) extends to the inside of fixed shell (8) and is threadedly connected with movable plate (10), the right side of movable plate (10) is tightly attached with fixed block (11), both the fixed blocks (11) are fixedly connected with the right fixed shell (8) between them, the inner cavity of fixed block (11) is movably connected with positioning strip (12), the left side of positioning strip (12) is fixedly connected with movable plate (10).

3. The electronic molded case circuit breaker of claim 2, wherein: The front and rear sides of the inner cavity of fixed shell (8) are provided with limiting grooves, the right side of the limiting groove is movably connected with limiting block (13), both the limiting blocks (13) are fixedly connected with movable plate (10) between them.

4. The electronic molded case circuit breaker of claim 2, wherein: The front and rear sides of fixed block (11) are fixedly connected with reinforcing block (14), the reinforcing block (14) is fixedly connected with the right fixed shell (8).

5. The electronic molded case circuit breaker of claim 1, wherein: The mounting mechanism (2) includes mounting plate (201), both the mounting plates (201) are fixedly connected with the electronic circuit breaker body (1) between them, the mounting plate (201) is provided with threaded hole (202) matched with bolt.

6. The electronic molded case circuit breaker of claim 1, wherein: The four corners of the surface of the electronic circuit breaker body (1) are provided with rubber pad (15), the outer surface of rubber pad (15) is provided with wavy anti-skid convex.

7. The electronic molded case circuit breaker of claim 1, wherein: The front sides of both the protective shells (7) are provided with window, the inner cavity of window is mounted with polycarbonate plate (16).

Images