Integrated molded case circuit breaker

Abstract

The utility model belongs to the technical field of circuit breakers, and discloses an integrated molded case circuit breaker, which comprises a power distribution cabinet, a fixing block is arranged on the inner wall of the power distribution cabinet, the fixing block is clamped in a first concave groove, and the fixing block is positioned in a third clamping groove. When the three-station circuit breaker needs to be installed on the inner wall of the power distribution cabinet, a first clamping block located on one side of the fixing frame can be directly clamped into a fixing block located on the inner wall of the power distribution cabinet, at the moment, the first clamping block enters a third clamping groove in the fixing block, and one end of the fixing block also enters a first concave groove; and the first clamping block installed in the first concave groove can be clamped into the first clamping groove, so that time is saved during installation, a plurality of bolts are not needed for fixation, and excessive manpower is not needed to be wasted.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breakers, and in particular relates to an integrated molded case circuit breaker. Background Art

[0002] A circuit breaker is a switch device that can close, carry and disconnect current under normal circuit conditions and close, carry and disconnect current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The boundary between high and low voltage is relatively vague. Generally, those above 3kV are called high-voltage electrical appliances, and three-position circuit breakers are a type of circuit breaker. When the existing three-position isolating switch integrated circuit breaker is installed on the inner wall of the distribution cabinet, it is usually fixed at the four corners of the circuit breaker by multiple bolts, which requires multiple people to complete. This is not only cumbersome to install, but also wastes manpower. Utility Model Content

[0003] The utility model aims to provide an integrated molded case circuit breaker to solve the problem that the installation of the existing device is complicated and wastes manpower when it is installed on the inner wall of the power distribution cabinet.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated molded case circuit breaker, comprising a power distribution cabinet, a fixed block is installed on the inner wall of the power distribution cabinet, a third card slot is provided on the fixed block, a three-position circuit breaker is installed inside the power distribution cabinet, a fixed frame is installed on one side of the three-position circuit breaker, a first card block is installed on one side of the fixed frame, a first concave groove is provided at the bottom of the first card block, a fixed block is engaged inside the first concave groove, and the fixed block is located in the third card slot.

[0005] Preferably, second concave grooves are provided on both sides of the first clamping block, telescopic blocks are installed inside the two second concave grooves, pressing blocks are installed on one end of the two telescopic blocks and on both sides of the first clamping block, compression components are installed on the two telescopic blocks and inside the second concave grooves, protrusions are installed on the opposite ends of the two telescopic blocks, second clamping grooves are provided on both sides of the fixed block, and the protrusions are engaged in the second clamping grooves.

[0006] Preferably, a first card slot is formed on the fixing block, a first card block is installed inside the first concave slot, and the first card block is located inside the first card slot.

[0007] Preferably, the compression assembly comprises a spring sleeved on the telescopic block, and a fixing plate is fixedly mounted on the bottom of the spring and located on the telescopic block.

[0008] Preferably, a grounding knife is installed on one side of the three-position circuit breaker, and the grounding knife is on the side away from the fixing frame.

[0009] Preferably, a control box is installed on one side of the power distribution cabinet, and one end of the control box is connected to a three-position circuit breaker.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] (1) The utility model is provided with a first clamping block, a fixing block and a first concave groove. When the three-position circuit breaker needs to be installed on the inner wall of the power distribution cabinet, the first clamping block located on one side of the fixing frame can be directly clamped into the fixing block located on the inner wall of the power distribution cabinet. At this time, the first clamping block will enter the third clamping groove on the fixing block, and one end of the fixing block will also enter the first concave groove, and the first clamping block installed in the first concave groove will be clamped into the first clamping groove. In this way, time is saved during installation, and there is no need to use multiple bolts for fixing, and there is no need to waste too much manpower.

[0012] (2) With respect to the above-mentioned first card block, the utility model is provided with a telescopic block, a protrusion and a second card slot. When the three-position circuit breaker needs to be disassembled, the pressing blocks located on both sides of the first card block are pulled. When the pressing blocks move outward, the telescopic blocks are driven to move outward together. At this time, the fixed plate installed on the telescopic block will compress the spring located inside the second concave groove, and the protrusion located at one end of the telescopic block will also come out of the second card slot. At this time, the three-position circuit breaker only needs to be lifted upward to be directly disassembled, thereby further improving the disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a side view of the fixing frame of the utility model;

[0015] Figure 3 It is a side sectional view of the first clamping block of the utility model;

[0016] Figure 4 for Figure 1 A magnified view of middle;

[0017] Figure 5 It is a front view of the fixing block of the utility model;

[0018] In the figure: 1. control box; 2. three-position circuit breaker; 3. distribution cabinet; 4. first clamping block; 5. fixing block; 6. fixing frame; 7. grounding knife; 8. telescopic block; 9. pressing block; 10. first concave groove; 11. first clamping slot; 12. first clamping block; 13. second concave groove; 14. spring; 15. convex block; 16. second clamping slot; 17. third clamping slot; 18. fixing plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 5 As shown, the utility model provides the following technical solutions: an integrated molded case circuit breaker, including a distribution cabinet 3, a fixing block 5 is installed on the inner wall of the distribution cabinet 3, a third card slot 17 is provided on the fixing block 5, a three-position circuit breaker 2 is installed inside the distribution cabinet 3, a fixing frame 6 is installed on one side of the three-position circuit breaker 2, a first card block 4 is installed on one side of the fixing frame 6, a first concave groove 10 is provided at the bottom of the first card block 4, a fixing block 5 is engaged inside the first concave groove 10, and the fixing block 5 is located in the third card slot 17. When the three-position circuit breaker 2 needs to be installed inside the distribution cabinet 3, the first card block 4 on one side of the fixing frame 6 is directly engaged with the fixing block 5. At this time, one end of the fixing block 5 will enter the first concave groove 10 to form an engagement, so that it can be installed quickly without wasting too much time.

[0021] Furthermore, second concave grooves 13 are provided on both sides of the first clamping block 4, and telescopic blocks 8 are installed inside the two second concave grooves 13. Pressing blocks 9 are installed on one end of the two telescopic blocks 8 and on both sides of the first clamping block 4. Compression components are installed on the two telescopic blocks 8 and inside the second concave grooves 13. Protrusions 15 are installed on the opposite ends of the two telescopic blocks 8. Second clamping grooves 16 are provided on both sides of the fixed block 5, and the protrusions 15 are engaged in the second clamping grooves 16. When disassembly and maintenance are required, the pressing blocks 9 on both sides of the first clamping block 4 are pulled. When the pressing blocks 9 move outward, the telescopic blocks 8 are driven to move outward together, so that the protrusions 15 at one end of the telescopic blocks 8 will also come out of the second clamping grooves 16.

[0022] Furthermore, a first card slot 11 is provided on the fixing block 5, and a first card block 12 is installed inside the first concave groove 10. The first card block 12 is located inside the first card slot 11. When the first card block 12 enters into the first card slot 11, the fixing block 5 can be prevented from shaking inside the first concave groove 10.

[0023] Specifically, the compression assembly includes a spring 14 mounted on the telescopic block 8, and a fixing plate 18 is fixedly installed at the bottom of the spring 14 and on the telescopic block 8. When the fixing block 5 enters the first concave groove 10, the telescopic block 8 will allow the protrusion 15 to engage into the second groove 16 under the action of the spring 14 and the fixing plate 18.

[0024] It is worth mentioning that a grounding knife 7 is installed on one side of the three-position circuit breaker 2, and the grounding knife 7 is on the side away from the fixing frame 6. The grounding knife 7 installed on the three-position circuit breaker 2 is mainly to prevent leakage. When leakage occurs, the current will flow to the ground through the grounding knife 7.

[0025] Furthermore, a control box 1 is installed on one side of the power distribution cabinet 3 , one end of the control box 1 is connected to the three-position circuit breaker 2 , and the control box 1 can control the opening and closing states of the three-position circuit breaker 2 .

[0026] Working principle and use process of the utility model: When using the utility model, when it is necessary to install the three-position circuit breaker 2 on the inner wall of the distribution cabinet 3, the first card block 4 located on one side of the fixing frame 6 can be directly inserted into the fixing block 5 located on the inner wall of the distribution cabinet 3. At this time, the first card block 4 will enter the third card slot 17 on the fixing block 5, and one end of the fixing block 5 will also enter the first concave groove 10, and the first card block 12 installed in the first concave groove 10 will be inserted into the first card slot 11. When the three-position circuit breaker 2 needs to be disassembled, the pressing blocks 9 on both sides of the first card block 4 are pulled. When the pressing blocks 9 move outward, the telescopic blocks 8 are driven to move outward together. At this time, the fixing plate 18 installed on the telescopic block 8 will compress the spring 14 located inside the second concave groove 13, and the protrusion 15 at one end of the telescopic block 8 will also come out of the second card slot 16. The control box 1 located on one side of the three-position circuit breaker 2 is used to control the entire three-position circuit breaker 2.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated molded case circuit breaker, characterized in that: The invention comprises a power distribution cabinet (3), wherein a fixing block (5) is installed on the inner wall of the power distribution cabinet (3), a third card slot (17) is provided on the fixing block (5), a three-position circuit breaker (2) is installed inside the power distribution cabinet (3), a fixing frame (6) is installed on one side of the three-position circuit breaker (2), a first card block (4) is installed on one side of the fixing frame (6), a first concave groove (10) is provided on the bottom of the first card block (4), a fixing block (5) is engaged inside the first concave groove (10), and the fixing block (5) is located in the third card slot (17).

2. The integrated molded case circuit breaker according to claim 1, characterized in that: Second concave grooves (13) are provided on both sides of the first clamping block (4), telescopic blocks (8) are installed inside the two second concave grooves (13), pressing blocks (9) are installed on one end of the two telescopic blocks (8) and on both sides of the first clamping block (4), compression components are installed on the two telescopic blocks (8) and inside the second concave grooves (13), and convex blocks (15) are installed on opposite ends of the two telescopic blocks (8), and second clamping grooves (16) are provided on both sides of the fixed block (5), and the convex blocks (15) are engaged in the second clamping grooves (16).

3. The integrated molded case circuit breaker according to claim 2, characterized in that: The fixing block (5) is provided with a first card slot (11), a first card block (12) is installed inside the first concave slot (10), and the first card block (12) is located inside the first card slot (11).

4. The integrated molded case circuit breaker according to claim 3, characterized in that: The compression assembly comprises a spring (14) sleeved on the telescopic block (8), and a fixing plate (18) is fixedly mounted at the bottom of the spring (14) and located on the telescopic block (8).

5. The integrated molded case circuit breaker according to claim 4, characterized in that: A grounding knife (7) is installed on one side of the three-position circuit breaker (2), and the grounding knife (7) is on the side away from the fixing frame (6).

6. The integrated molded case circuit breaker according to claim 5, characterized in that: A control box (1) is installed on one side of the power distribution cabinet (3), and one end of the control box (1) is connected to a three-position circuit breaker (2).

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