Intelligent circuit breaker structure

Abstract

The utility model discloses an intelligent circuit breaker structure, which sequentially comprises an upper cover, a middle cover and a bottom cover from top to bottom, wherein an N-pole bus cavity for installing an N-pole bus and a transmission cavity for installing a gear transmission mechanism are formed between the upper cover and the middle cover; a contact cavity for mounting an N-pole contact mechanism is formed between the upper cover and the bottom cover; an L-pole bus is mounted between the bottom cover and the middle cover, and an insulating plate for separating the L-pole bus from the N-pole bus is formed on the middle cover; and the L-pole bus is positioned between the middle cover and the bottom cover. The transmission structure is a duplex-mode gear set, the structure is compact, the shell is of a 2p structure, and the N-pole contact mechanism does not need a connecting rod, so that the whole structure is simpler and more compact, the size is the same as that of an existing traditional single-phase circuit breaker, the size of a distribution box does not need to be increased when the existing traditional single-phase circuit breaker is replaced, and connecting rod transmission is not needed during unhooking; the device is more reliable and is not easy to break down.

Description

Technical Field

[0001] The utility model relates to the field of machinery, in particular to an intelligent circuit breaker structure. Background Art

[0002] Traditional single-phase circuit breakers are mainly 2P in size (2P product thickness is 36mm, 1P thickness is 18mm). Single-phase circuit breakers are installed in residential distribution boxes. The size of residential distribution boxes is generally pre-buried according to the size of 2P circuit breakers. For equipment users, increasing the size of the distribution box is not economical in terms of cost expenditure and space occupation. Existing intelligent circuit breakers are usually 3P structures, that is, the L-pole busbar, N-pole busbar and transmission structure are separated by covers, resulting in a large volume, which cannot be applied to residential distribution boxes of traditional single-phase circuit breakers.

[0003] In addition, the existing circuit breaker is a connecting rod that transmits power in the middle by touching the gear, and the connecting rod then touches the trip button of the circuit breaker to make the trip button trip, thereby executing the circuit breaker opening. For example, CN 211125539 U discloses an intelligent circuit breaker electric operating device drive and tripping structure. Since the unhooking requires the transmission of the connecting rod, it not only occupies a large volume, but also has many parts and is more prone to failure. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes an intelligent circuit breaker structure.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] An intelligent circuit breaker structure comprises an upper cover, a middle cover and a bottom cover from top to bottom; wherein an N-pole busbar cavity for installing an N-pole busbar and a transmission cavity for installing a gear transmission mechanism are formed between the upper cover and the middle cover; a contact cavity for installing an N-pole contact mechanism is formed between the upper cover and the bottom cover; an L-pole busbar is installed between the bottom cover and the middle cover, and an insulating plate for separating the L-pole busbar from the N-pole busbar is formed on the middle cover; the L-pole busbar is located between the middle cover and the bottom cover.

[0007] As a further improvement, the gear transmission mechanism includes a motor, the motor is connected to a worm, the worm transmission is connected to a transmission gear set, the transmission end of the transmission gear set is a transmission gear, the transmission gear is meshed with a tripping gear, and the tripping gear is connected to a handle.

[0008] As a further improvement, the transmission gear and the tripping and closing gear are both incomplete gears.

[0009] A further improvement is that the transmission gear is coaxially fixedly connected to a rotating wheel, the outer periphery of the rotating wheel is raised to form a boss, and the middle part of the boss is recessed to form a "√"-shaped groove; the N-pole contact mechanism includes a mounting plate, the mounting plate is hingedly connected to the middle part of the tripping rod, one end of the tripping rod is connected to a push rod that cooperates with the "√"-shaped groove, and the push rod is inclined relative to the tripping rod.

[0010] As a further improvement, the N-pole busbar cavity is a "J"-shaped groove, and the N-pole busbar is electrically connected to a "J"-shaped bridge copper busbar structure.

[0011] As a further improvement, the transmission gear set is a dual-mode gear set.

[0012] The beneficial effects of the utility model are:

[0013] The transmission structure of the utility model is a double-mode gear set with a compact structure. The shell is a 2p structure, and the N-pole contact mechanism does not need to be provided with a connecting rod. Therefore, the overall structure is more concise and compact, and the size is consistent with the existing traditional single-phase circuit breaker. Therefore, it is not necessary to increase the size of the distribution box to replace the existing traditional single-phase circuit breaker, and the uncoupling does not require connecting rod transmission, which is more reliable and less prone to failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0015] Figure 1 It is a schematic diagram of the structure of the upper cover, the middle cover and the bottom cover;

[0016] Figure 2 It is a schematic diagram of the internal structure of the intelligent circuit breaker;

[0017] Figure 3 It is a schematic diagram of the connection structure between the gear transmission mechanism and the N-pole contact mechanism;

[0018] Figure 4 is a schematic diagram of the structure of the runner;

[0019] Figure 5 This is a schematic diagram of the "J"-shaped bridge copper busbar structure. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and examples.

[0021] Example 1

[0022] like Figure 1-Figure 5An intelligent circuit breaker structure shown includes an upper cover 1, a middle cover 2, a bottom cover 3, an N-pole busbar 4, an N-pole busbar cavity 5, a gear transmission mechanism 6, a motor 61, a worm 62, a transmission gear set 63, a transmission gear 64, a tripping and closing gear 65, a handle 66, a rotating wheel 67, a boss 671, a "√"-shaped groove 672, a transmission cavity 7, an N-pole contact mechanism 8, a mounting plate 81, a trip rod 82, a push rod 83, a contact cavity 9, an insulating plate 10 and a "J"-shaped bridge copper busbar structure 11.

[0023] Among them, an N-pole busbar cavity 5 for installing the N-pole busbar 4 and a transmission cavity 7 for installing the gear transmission mechanism 6 are formed between the upper cover 1 and the middle cover 2; a contact cavity 9 for installing the N-pole contact mechanism 8 is formed between the upper cover 1 and the bottom cover 3; an L-pole busbar is installed between the bottom cover 3 and the middle cover 2, and an insulating plate 10 is formed on the middle cover 2 to separate the L-pole busbar and the N-pole busbar 4; the L-pole busbar is between the middle cover 2 and the bottom cover 3.

[0024] The gear transmission mechanism 6 includes a motor 61, the motor 61 is connected to a worm 62, the worm 62 is connected to a transmission gear set 63, the transmission end of the transmission gear set 63 is a transmission gear 64, the transmission gear 64 is meshed with a tripping gear 65, and the tripping gear 65 is connected to a handle 66. Both the transmission gear 64 and the tripping gear 65 are incomplete gears.

[0025] The transmission gear 64 is coaxially fixedly connected with a rotating wheel 67, and the outer periphery of the rotating wheel 67 is convex to form a boss 671, and the middle part of the boss 671 is concave to form a "√"-shaped groove 672; the N-pole contact mechanism 8 includes a mounting plate 81, and the mounting plate 81 is hingedly connected to the middle part of the tripping rod 82, and one end of the tripping rod 82 is connected to a push rod 83 that cooperates with the "√"-shaped groove 672, and the push rod 83 is inclined relative to the tripping rod 82. The N-pole busbar cavity 5 is a "J"-shaped groove, and the N-pole busbar 4 is electrically connected to a "J"-shaped bridge copper bar structure 11. The transmission gear set 63 is a double-mode gear set.

[0026] When the automatic closing and tripping is realized, the motor drives the transmission gear 64 to rotate, the transmission gear 64 drives the rotating wheel 67 to rotate, the "√"-shaped groove 672 moves the push rod 83, and the push rod 83 drives the tripping rod 82 to rotate, so that the tripping rod 82 is released. Figure 2 As shown in the figure, the closing operation is performed, and at the same time, the tripping closing gear 65 rotates to drive the handle (66) to move. Similarly, the above operation can also be achieved by manually turning the handle.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit the protection scope of the utility model. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An intelligent circuit breaker structure, characterized in that: The device comprises, from top to bottom, an upper cover (1), a middle cover (2) and a bottom cover (3); wherein an N-pole busbar cavity (5) for mounting an N-pole busbar (4) and a transmission cavity (7) for mounting a gear transmission mechanism (6) are formed between the upper cover (1) and the middle cover (2); a contact cavity (9) for mounting an N-pole contact mechanism (8) is formed between the upper cover (1) and the bottom cover (3); an L-pole busbar is mounted between the bottom cover (3) and the middle cover (2); an insulating plate (10) for separating the L-pole busbar from the N-pole busbar (4) is formed on the middle cover (2); and the L-pole busbar is located between the middle cover (2) and the bottom cover (3).

2. The intelligent circuit breaker structure according to claim 1, characterized in that: The gear transmission mechanism (6) comprises a motor (61), the motor (61) is connected to a worm (62), the worm (62) is transmission-connected to a transmission gear set (63), the transmission end of the transmission gear set (63) is a transmission gear (64), the transmission gear (64) is meshed with a tripping gear (65), and the tripping gear (65) is connected to a handle (66).

3. The intelligent circuit breaker structure according to claim 2, characterized in that: The transmission gear (64) and the tripping gear (65) are both incomplete gears.

4. The intelligent circuit breaker structure according to claim 2, characterized in that: The transmission gear (64) is coaxially fixedly connected with a rotating wheel (67), the outer periphery of the rotating wheel (67) is protruded to form a boss (671), and the middle part of the boss (671) is recessed to form a "√"-shaped groove (672); the N-pole contact mechanism (8) comprises a mounting plate (81), the mounting plate (81) is hingedly connected to the middle part of a tripping rod (82), one end of the tripping rod (82) is connected to a push rod (83) that cooperates with the "√"-shaped groove (672), and the push rod (83) is arranged to be inclined relative to the tripping rod (82).

5. The intelligent circuit breaker structure according to claim 1, characterized in that: The N-pole busbar cavity (5) is a "J"-shaped groove, and the N-pole busbar (4) is electrically connected to a "J"-shaped bridge copper busbar structure (11).

6. The intelligent circuit breaker structure according to claim 2, characterized in that: The transmission gear set (63) is a dual-mode gear set.

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