Molded case circuit breaker with positioning structure

Abstract

The utility model discloses a molded case circuit breaker with a positioning structure, and the key points of the technical scheme are that the molded case circuit breaker comprises a molded case circuit breaker body and an electrical box body: the back part of the molded case circuit breaker body is provided with the positioning mechanism, and the positioning mechanism is assembled on the inner wall of the electrical box body; and a moisture-proof mechanism is also arranged in the electrical box body. Compared with a traditional bolt positioning mode, the molded case circuit breaker body can be quickly detached from the positioning mechanism through the positioning mechanism arranged on the back of the molded case circuit breaker body, so that the mounting time of the molded case circuit breaker body is greatly shortened, and meanwhile, the arranged positioning mechanism can be used for quickly mounting the molded case circuit breaker body by changing the clamping distance, so that the mounting efficiency is improved. Therefore, the device is suitable for molded case circuit breaker bodies of various specifications. The moisture-proof particles filled in the moisture-proof mechanism can effectively adsorb rain, snow and moisture in the electrical box body, so that the storage environment of the electrical box body is always in a dry state, and the installation and use safety of the molded case circuit breaker body is improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical components, and in particular to a molded case circuit breaker with a positioning structure. Background Technology

[0002] A molded case circuit breaker (MCCB) is an electrical protection device widely used in power systems. It is primarily used to automatically disconnect the power supply when an overload, short circuit, or other fault occurs in the circuit, thereby protecting circuit equipment and preventing safety accidents such as fires.

[0003] When installing molded case circuit breakers (MCCBs) in electrical boxes, bolt fixing is commonly used. However, relying on bolt installation has many drawbacks. In practical use, installing the circuit breaker requires tightening each bolt one by one, resulting in low fixing efficiency and cumbersome procedures. Furthermore, if the circuit breaker layout within the electrical box needs to be reconfigured, bolt installation makes the adjustment process cumbersome and inflexible, as the existing bolt holes cannot accommodate various circuit breaker specifications. Additionally, existing electrical boxes lack moisture protection for the MCBs.

[0004] Therefore, a molded case circuit breaker with a positioning structure is proposed to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a molded case circuit breaker with a positioning structure. By setting the positioning structure, it is possible to quickly install and position molded case circuit breakers of various specifications, and the overall assembly and disassembly are convenient. By setting a moisture-proof mechanism in the electrical box, the molded case circuit breaker is protected against moisture.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A molded case circuit breaker with a positioning structure includes a molded case circuit breaker body and an electrical box body: a positioning mechanism is mounted on the back of the molded case circuit breaker body and the positioning mechanism is mounted on the inner wall of the electrical box body.

[0008] The positioning mechanism includes two slides disposed on both sides of the molded case circuit breaker body, each slide having a through hole, and a light rod passing through between the two slides;

[0009] Both slides are threaded with tightening bolts on their sides; both slides are threaded with locking screws on their tops, with the bottom end of the locking screw passing through the slide and extending to abut against the guide rod.

[0010] Both sides of the molded case circuit breaker body are provided with bolt holes corresponding to the tightening bolts.

[0011] The electrical box body is also provided with a moisture-proof mechanism, which includes a moisture-proof box set on the top wall of the electrical box body. The moisture-proof box is rectangular and has a cavity. A moisture-proof board is set in the cavity of the moisture-proof box. Several positioning grooves are opened on the moisture-proof board, and each positioning groove is filled with moisture-proof particles.

[0012] A temperature and humidity sensor is installed inside the electrical box, and a temperature and humidity display screen is installed outside the electrical box. The temperature and humidity sensor is connected to a wire and is electrically connected to the temperature and humidity display screen through the wire.

[0013] Furthermore, a positioning seat is mounted on the outside of the optical rod. The positioning seat is U-shaped and has vertical parts on both sides for mounting the optical rod. The back of the positioning seat has a threaded hole and a bolt is connected to it by an internal thread. The positioning seat is mounted on the inner wall of the electrical box body by the bolt.

[0014] Furthermore, clamping notches are provided on the opposite sides of both slides.

[0015] Furthermore, both sides of the molded case circuit breaker body are provided with protrusions that correspond to and fit the clamping notches.

[0016] Furthermore, the moisture-proof box is inverted and mounted on the inner top wall of the electrical box body, and the bottom of the moisture-proof box has several ventilation holes; the moisture-proof board has several small holes running through it.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. By using a positioning mechanism on the back of the molded case circuit breaker body, the molded case circuit breaker body can be adapted to the positioning mechanism after the positioning mechanism is installed in the electrical box body, and the installation operation on the positioning mechanism can be completed quickly. Compared with the traditional bolt positioning method, the molded case circuit breaker body of this application can be quickly disassembled on the positioning mechanism through the positioning mechanism on its back, thereby significantly shortening the installation time of the molded case circuit breaker body. At the same time, the positioning mechanism can be adapted to various specifications of molded case circuit breaker bodies by changing the clamping spacing, further improving the convenience and applicability of the molded case circuit breaker body of this application in installation.

[0019] 2. In practical use, the moisture-proof particles filling the moisture-proof mechanism effectively absorb rain and snow moisture inside the electrical box, ensuring that the storage environment of the electrical box remains dry and improving the safety of installation and use of the molded case circuit breaker. However, due to the particle adsorption characteristics of the moisture-proof particles, their adsorption effect will decrease over prolonged use. Therefore, by using a temperature and humidity display screen and temperature and humidity sensors to monitor the storage environment inside the electrical box, users can promptly detect changes in temperature and humidity and take timely drying measures. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0021] Figure 2 This is a schematic diagram of the overall structure of the positioning mechanism in this embodiment;

[0022] Figure 3 This is a schematic diagram of the overall structure of the moisture-proof mechanism in this embodiment;

[0023] Figure 4 This is a schematic diagram of the molded case circuit breaker body structure in this embodiment.

[0024] In the diagram, 1. Molded case circuit breaker body; 2. Positioning mechanism; 21. Positioning seat; 22. Smooth rod; 23. Slide; 231. Locking screw; 24. Clamping notch; 25. Tightening bolt; 3. Electrical box body; 4. Moisture-proof mechanism; 41. Moisture-proof box; 42. Moisture-proof board; 43. Positioning groove; 44. Moisture-proof particles; 45. Ventilation hole; 5. Temperature and humidity sensor. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0027] First embodiment;

[0028] Reference Figure 1-4 As shown, a molded case circuit breaker with a positioning structure is provided in a preferred embodiment of the present invention, including a molded case circuit breaker body 1 and an electrical box body 3: a positioning mechanism 2 is mounted on the back of the molded case circuit breaker body 1, and the positioning mechanism 2 is mounted on the inner wall of the electrical box body 3.

[0029] The positioning mechanism 2 includes two slides 23 disposed on both sides of the molded case circuit breaker body 1. Each slide 23 has a through hole, and a smooth rod 22 passes through the two slides 23.

[0030] Both slides 23 are threaded with tightening bolts 25 on their sides; both slides 23 are threaded with locking screws 231 on their tops, with the bottom end of the locking screws 231 passing through the slides 23 and extending to abut against the guide rod 22.

[0031] Both sides of the molded case circuit breaker body 1 are provided with bolt holes corresponding to the tightening bolts 25;

[0032] The electrical box body 3 is also equipped with a moisture-proof mechanism 4. The moisture-proof mechanism 4 includes a moisture-proof box 41 installed on the top wall inside the electrical box body 3. The moisture-proof box 41 is rectangular and has a cavity. A moisture-proof board 42 is installed inside the cavity of the moisture-proof box 41. Several positioning grooves 43 are opened on the moisture-proof board 42. Each positioning groove 43 is filled with moisture-proof particles 44.

[0033] A temperature and humidity sensor 5 is installed inside the electrical box body 3, and a temperature and humidity display screen is installed outside the electrical box body 3. The temperature and humidity sensor 5 is connected to a wire and is electrically connected to the temperature and humidity display screen through the wire.

[0034] In this embodiment, the positioning mechanism 2 provided on the back of the molded case circuit breaker body 1 allows the molded case circuit breaker body 1 to be adapted to the positioning mechanism 2 and quickly installed on the positioning mechanism 2 after the positioning mechanism 2 is installed in the electrical box body 3. Compared with the traditional bolt positioning method, the molded case circuit breaker body 1 of this application can be quickly disassembled on the positioning mechanism 2 by means of the positioning mechanism 2 provided on its back, thereby greatly shortening the installation time of the molded case circuit breaker body 1. At the same time, the positioning mechanism 2 can be adapted to various specifications of molded case circuit breaker body 1 by changing the clamping spacing, further improving the convenience and applicability of the molded case circuit breaker body 1 in installation.

[0035] Furthermore, the moisture-proof particles 44 filled in the moisture-proof mechanism 4 can effectively absorb rain and snow moisture inside the electrical box body 3, thereby ensuring that the storage environment of the electrical box body 3 is always dry and improving the installation and use safety of the molded case circuit breaker body 1.

[0036] Preferably, due to the particle adsorption characteristics of the moisture-proof particles 44, their adsorption effect will decrease over prolonged use. Therefore, by using a temperature and humidity display screen and a temperature and humidity sensor 5 to monitor the storage environment inside the electrical box 3, the user can promptly detect changes in the temperature and humidity of the storage environment inside the electrical box 3 and take timely drying measures. By controlling the humidity inside the electrical box 3, the probability of insulation aging, short circuits, and other faults in the molded case circuit breaker body 1 can be reduced, thereby improving the reliability and stability of the molded case circuit breaker body 1.

[0037] Second embodiment;

[0038] Reference Figure 1-2 As shown, a positioning seat 21 is mounted on the outside of the optical rod 22. The positioning seat 21 is U-shaped with vertical sections on both sides for mounting the optical rod 22. The back of the positioning seat 21 has threaded holes with internal threads for bolts. The positioning seat 21 is mounted to the inner wall of the electrical box body 3 using bolts. The user can position and install the positioning seat 21 onto the electrical box body 3 by aligning the bolt holes on the positioning seat 21 with pre-drilled holes on the electrical box body 3 using appropriate bolts. The positioning seat 21 is used for mounting the optical rod 22.

[0039] Third embodiment;

[0040] Reference Figure 1-2 As shown, clamping notches 24 are provided on the opposite sides of the two slides 23. The clamping notches 24 can be used to cooperate with the protrusions provided on the side of the molded case circuit breaker body 1 to further position and install the molded case circuit breaker body 1.

[0041] Fourth embodiment;

[0042] Reference Figure 4 As shown, both sides of the molded case circuit breaker body 1 have protruding blocks that correspond to and fit the clamping notches 24. By adjusting the distance between the two slides 23, the user can place the molded case circuit breaker body 1 between the two slides 23. Through the fitting and engagement of the protrusions on both sides of the molded case circuit breaker body 1 with the clamping notches 24, the molded case circuit breaker body 1 can be initially positioned between the two slides 23.

[0043] Fifth embodiment;

[0044] Reference Figure 1 and Figure 3As shown, the moisture-proof box 41 is inverted and mounted on the inner top wall of the electrical box body 3. Several ventilation holes 45 are provided at the bottom of the moisture-proof box 41; several small holes are provided through the moisture-proof board 42. The ventilation holes 45 allow moisture inside the electrical box body 3 to enter the side of the positioning groove 43, where the moisture-proof particles 44 filled in the positioning groove 43 absorb the moisture. Because the moisture-proof box 41 is inverted, the moisture-proof board 42 is semi-closed, with an opening at its bottom for the moisture-proof particles 44 to fill. The moisture-proof board 42 also has several small holes, allowing moisture inside the electrical box body 3 to enter the side of the moisture-proof particles 44 for absorption.

[0045] Specific implementation process:

[0046] Step 1: When the user needs to install the molded case circuit breaker body 1, first install the positioning mechanism 2 on the inner wall of the electrical box body 3. After the positioning seat 21 is positioned, the user adjusts the distance between the two slides 23 according to the size of the molded case circuit breaker body 1. The user loosens the locking screw 231, thereby disengaging the locking screw 231 from the light rod 22. At this time, the two slides 23 can slide outside the light rod 22. The user adjusts the distance between the two slides 23 to place the molded case circuit breaker body 1 between the two slides 23. Through the matching and fitting of the protrusions on both sides of the molded case circuit breaker body 1 with the clamping notch 24, the molded case circuit breaker body 1 can be initially positioned between the two slides 23. Then, the user tightens the locking screw 231, and the locking screw 231 and the light rod 22 are used to lock the position of the slides 23 on the light rod 22, thereby clamping the molded case circuit breaker body 1.

[0047] Step 2: After the two slides 23 clamp the molded case circuit breaker body 1, the user tightens the two loosening bolts 25 again, so that the loosening bolts 25 pass through the slides 23 until they are connected to the bolt holes on the side of the molded case circuit breaker body 1. At this time, through the clamping of the slides 23 and the connection of the loosening bolts 25, the molded case circuit breaker body 1 can be stably installed on the positioning mechanism 2.

[0048] Through the above connection method, the molded case circuit breaker body 1 can be quickly installed on the positioning mechanism 2. At the same time, the positioning mechanism 2 is used to complete the stable installation on the electrical box body 3. When the user needs to maintain the molded case circuit breaker body 1, he / she only needs to adjust the positioning mechanism 2 to complete the disassembly and assembly of the molded case circuit breaker body 1. Furthermore, when the molded case circuit breaker body 1 is subsequently maintained and its size is changed, the positioning mechanism 2 can also adapt to different specifications of molded case circuit breaker body 1 and quickly install it.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A molded case circuit breaker with a positioning structure, comprising a molded case circuit breaker body (1) and an electrical box body (3), characterized in that: The molded case circuit breaker body (1) is equipped with a positioning mechanism (2) on its back, and the positioning mechanism (2) is mounted on the inner wall of the electrical box body (3); The positioning mechanism (2) includes two slides (23) disposed on both sides of the molded case circuit breaker body (1), each slide (23) having a through hole, and a smooth rod (22) passing between the two slides (23); Both slides (23) are threaded with tightening bolts (25) on their sides; both slides (23) are threaded with locking screws (231) on their tops, with the bottom end of the locking screws (231) passing through the slides (23) and extending to abut against the guide rod (22); The molded case circuit breaker body (1) has bolt holes on both sides corresponding to the tightening bolts (25); The electrical box body (3) is also provided with a moisture-proof mechanism (4). The moisture-proof mechanism (4) includes a moisture-proof box (41) set on the top wall inside the electrical box body (3). The moisture-proof box (41) is rectangular and has a cavity. A moisture-proof board (42) is set in the cavity of the moisture-proof box (41). Several positioning grooves (43) are opened on the moisture-proof board (42). Each positioning groove (43) is filled with moisture-proof particles (44). A temperature and humidity sensor (5) is installed inside the electrical box body (3), and a temperature and humidity display screen is installed outside the electrical box body (3). The temperature and humidity sensor (5) is connected to a wire and is electrically connected to the temperature and humidity display screen through the wire.

2. The molded case circuit breaker with a positioning structure according to claim 1, characterized in that: The light rod (22) is externally equipped with a positioning seat (21). The positioning seat (21) is U-shaped and has vertical parts on both sides for the light rod (22) to be installed. The back of the positioning seat (21) is provided with a threaded hole and a bolt is connected to its internal thread. The positioning seat (21) is assembled to the inner wall of the electrical box body (3) by the bolt.

3. The molded case circuit breaker with a positioning structure according to claim 1, characterized in that: Both slides (23) have clamping notches (24) on their opposite sides.

4. The molded case circuit breaker with a positioning structure according to claim 3, characterized in that: The molded case circuit breaker body (1) has protrusions on both sides that correspond to and fit the clamping notch (24).

5. The molded case circuit breaker with a positioning structure according to claim 1, characterized in that: The moisture-proof box (41) is upside down and placed on the inner top wall of the electrical box body (3). The bottom of the moisture-proof box (41) has several ventilation holes (45); the moisture-proof board (42) has several small holes.

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