Circuit breaker alarm assembly

Abstract

The utility model discloses a circuit breaker alarm assembly, and relates to the technical field of circuit breakers. A circuit breaker alarm assembly comprises an upper cover and a base, the base is provided with a left wiring board, a right wiring board, a spring piece, a rotating disc, a handle, a U-shaped connecting rod, a jump pin, a lock catch, a rotating disc tension spring, a support, a wiring terminal, a support tension spring, a movable contact assembly and a linkage shaft, and the movable contact assembly comprises a sliding block, a contact compression spring, a tension spring, two movable contact bridges and four movable contacts. The sliding block is provided with a movable contact bridge assembling area, a spring piece positioning groove, two spring positioning bosses, a tension spring positioning cylinder and a tension spring hook, and the two movable contact bridges are respectively provided with two movable contact riveting holes, so that the assembly can easily realize the combination of multiple functions such as 1 normally open and 1 normally closed, 2 normally open and 2 normally closed under the condition that the same shell is commonly used by virtue of the elaborate design, and is convenient to use. The innovative design greatly expands the application boundary of the circuit breaker alarm assembly, so that the circuit breaker alarm assembly can flexibly adapt to different requirements in different electric power scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker technical field, especially a circuit breaker alarm subassembly. BACKGROUND

[0002] In the power system, the circuit breaker as important protection equipment, its performance and reliability are directly related to the safe and stable operation of the power system, and the circuit breaker accessory, as the extension function component of the circuit breaker, such as alarm subassembly, has the vital role to the timely detection and feedback of the state change of the circuit breaker.

[0003] The circuit breaker accessory on the existing market is single in function, and most of them can only realize the basic function combination of 1 normally open 1 normally closed, in the actual power operation scene, especially in the face of the increasingly complex power grid architecture and diversified industrial control demand, this single function configuration is insufficient, when used on the smart grid, it contains a large number of different types and different specifications of electrical equipment, the running state of each equipment needs to be accurately monitored and fed back, the single 1 normally open 1 normally closed configuration cannot meet the demand of comprehensive and detailed characterization of the state of numerous equipment, so that the power operation and maintenance personnel are difficult to master the overall operation condition of the power grid in real time and accurately, and then affect the troubleshooting and processing efficiency, seriously restrict the improvement of the intelligent management level of the power system, and on the industrial automation production line, various equipment work cooperatively, the flexibility and diversity of circuit control are extremely high, the single function combination of the traditional circuit breaker accessory cannot adapt to the complex control logic, hindering the efficient optimization and automatic upgrading of the production process, therefore, we propose a circuit breaker alarm subassembly. UTILITY MODEL CONTENT

[0004] The utility model aims at least to solve one of the technical problems existing in the prior art, provide a circuit breaker alarm subassembly, can solve the problem that most of them can only realize the basic function combination of 1 normally open 1 normally closed, in the actual power operation scene, especially in the face of the increasingly complex power grid architecture and diversified industrial control demand, this single function configuration is insufficient.

[0005] To achieve the above object, the utility model provides the following technical scheme: a circuit breaker alarm subassembly, comprising:

[0006] The upper cover and the base are respectively provided with left terminal block, right terminal block, spring sheet, rotating disc, handle, U-shaped connecting rod, jump buckle, lock buckle, rotating disc tension spring, support, terminal, support tension spring, moving contact assembly and connecting shaft on the base;

[0007] The moving contact assembly comprises sliding block, contact spring, tension spring, two moving contact bridges and four moving contact points;

[0008] The slider is provided with a movable contact bridge assembly area, a spring sheet positioning groove, two spring positioning bosses, a tension spring positioning cylinder and a tension spring hook.

[0009] Two movable contact bridges are assembled on the movable contact bridge assembly area of the slider through the two movable contact points on the movable contact bridges.

[0010] Preferably, the spring sheet is provided with a motion connecting sheet, a positioning circular hole, a motion arm, a motion reinforcing rib, a reinforcing small boss and a slider insertion foot.

[0011] Preferably, the left and right terminal boards are provided with an assembly positioning rib, a wire anti-skid groove and a contact point contact plate.

[0012] Preferably, the upper cover is provided with a terminal board fixing groove, a slider motion groove, a wire insertion hole, a terminal fixing groove and a terminal screw hole.

[0013] Preferably, the base is also provided with a terminal board fixing groove, a slider motion groove, a wire insertion hole, a terminal fixing groove and a terminal screw hole.

[0014] Preferably, the handle and the bracket are sleeved on the corresponding cylinders of the base, and the lock catch and the jump catch are sleeved on the corresponding cylinders of the bracket.

[0015] Preferably, the slider is embedded in the corresponding slider motion groove of the base, the circular hole end of the spring sheet is sleeved on the corresponding cylinder of the base, and the other end of the spring sheet is inserted into the corresponding spring sheet positioning groove of the slider.

[0016] Preferably, the turntable is sleeved on the corresponding cylinder of the base and located above the bracket and the spring sheet, the terminal board is embedded in the terminal frame of the terminal after being inserted, the turntable spring is hung on the corresponding cylinder of the turntable and the base, and the bracket spring is hung on the corresponding cylinder of the bracket and the base.

[0017] Compared with the prior art, the circuit breaker alarm assembly has the advantages that:

[0018] 1. The circuit breaker alarm assembly is designed carefully, can realize 1 normally open and 1 normally closed, 2 normally open, 2 normally closed and other function combinations under the condition of a common shell, greatly expands the application boundary of the circuit breaker alarm assembly, and makes it be able to flexibly adapt to the differentiated needs in different power scenes.

[0019] 2. The circuit breaker alarm assembly, which is independently connected in an independent loop mode, each loop independently operates, avoids the chain reaction caused by the common end fault, and greatly improves the safety performance.

[0020] 3. The circuit breaker alarm assembly, which is connected in a double-break point mode of a moving contact bridge type, simultaneously cuts off the current through two break points when breaking the circuit, effectively suppresses the arc phenomenon, and makes the operation performance more stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be further explained in connection with the drawings and embodiments:

[0022] Figure 1 It is the internal structure schematic view of the base of the utility model;

[0023] Figure 2 It is the internal structure schematic view of the upper cover of the utility model;

[0024] Figure 3 It is the structure schematic view of the terminal board positioning rib of the utility model;

[0025] Figure 4 It is the structure schematic view of the upper cover of the utility model;

[0026] Figure 5 It is the structure schematic view of the left terminal board of the utility model;

[0027] Figure 6 It is the structure schematic view of the right terminal board of the utility model;

[0028] Figure 7 It is the structure schematic view of the spring sheet of the utility model;

[0029] Figure 8 It is the structure schematic view of the contact spring of the one normally open one normally closed (1NONC) moving contact assembly of the utility model;

[0030] Figure 9 It is the structure schematic view of the moving contact bridge of the one normally open one normally closed (1NONC) moving contact assembly of the utility model;

[0031] Figure 10 It is the structure schematic view of the handle open state of the one normally open one normally closed (1NONC) handle of the utility model;

[0032] Figure 11 It is the structure schematic view of the handle closed state of the one normally open one normally closed (1NONC) handle of the utility model;

[0033] Figure 12 It is the structure schematic view of the handle open state of the two normally closed (2NC) handle of the utility model;

[0034] Figure 13 The second normally closed (2NC) handle closed state structure schematic view of the utility model;

[0035] Figure 14 The second normally open (2NO) handle closed state structure schematic view of the utility model;

[0036] Figure 15 The second normally open (2NO) handle closed state structure schematic view of the utility model;

[0037] Figure 16 The second normally open (2NO) pull spring structure schematic view of the utility model;

[0038] Figure 17 The second normally open (2NO) moving contact bridge assembly area structure schematic view of the utility model.

[0039] The drawing mark: 1, upper cover; 2, base; 3, wiring terminal; 4, left wiring board; 5, spring sheet; 6, rotary disc; 7, handle; 8, U-shaped connecting rod; 9, jump buckle; 10, lock buckle; 11, linkage shaft; 12, rotary disc pull spring; 13, pull spring hook; 14, support; 15, wiring terminal; 16, support pull spring; 17, moving contact assembly; 18, wiring board fixed groove; 19, wiring screw hole; 20, sliding block movement groove; 21, wiring terminal fixed groove; 22, lead insertion hole; 23, wiring board fixed column; 24, spring sheet positioning small cylinder; 25, wiring board positioning rib; 26, assembly positioning rib; 27, lead anti-skid groove; 28, contact point contact plate; 29, movement arm; 30, movement reinforcing rib; 31, reinforcing small boss; 32, sliding block insertion foot; 33, positioning round hole; 34, movement connecting sheet; 35, contact head compression spring; 36, sliding block; 37, pull spring positioning cylinder; 38, moving contact riveting hole; 39, spring sheet positioning groove; 40, moving contact bridge assembly area; 41, moving contact; 42, moving contact bridge; 43, spring positioning boss; 44, pull spring. DETAILED DESCRIPTION

[0040] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part in the form of graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0041] In the description of the utility model, it needs to be understood that, when the direction description such as upper, lower, front, back, left, right and the like is referred to, the direction or positional relationship shown in the drawing is only for the convenience of describing the utility model and simplifying the description, and it is not indicated or implied that the device or element indicated must have a particular direction, a particular direction configuration and operation, and therefore it cannot be understood as a limitation on the utility model.

[0042] In the description of the utility model, greater than, less than, more than and the like are understood as not including the number, and above, below and the like are understood as including the number.If the first and second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0043] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the skilled person in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0044] Please refer to Figures 1-17 The utility model provides a kind of technical scheme: a circuit breaker alarm component, comprising:

[0045] Upper cover 1 and base 2, base 2 is respectively provided with left terminal block 4, right terminal block 15, spring piece 5, rotating disc 6, handle 7, U-shaped connecting rod 8, jump buckle 9, lock buckle 10, rotating disc tension spring 12, bracket 14, terminal 3, bracket tension spring 16, moving contact assembly 17 and connecting shaft 11;

[0046] Moving contact assembly 17 includes slider 36, contact spring 35, tension spring 44, two moving contact bridges 42 and four moving contact points 41;

[0047] Slider 36 is equipped with moving contact bridge assembly area 40, spring piece positioning groove 39, two spring positioning bosses 43, tension spring positioning cylinder 37 and tension spring hook 13;

[0048] Two moving contact bridges 42 are both provided with two moving contact riveting holes 38, four moving contact points 41 are all installed in corresponding moving contact riveting hole 38, two moving contact bridges 42 are both assembled on the moving contact bridge assembly area 40 of slider 36 through two moving contact points 41 on it, contact spring 35 is fixed between corresponding moving contact bridge 42 and slider 36 through spring positioning boss 43, one end of tension spring 44 is hung on the tension spring hook 13 of corresponding moving contact bridge 42, the other end of tension spring 44 is hung on the tension spring positioning cylinder 37 of slider 36.

[0049] The spring sheet 5 is provided with a motion connecting sheet 34, a positioning circular hole 33, a motion arm 29, a motion reinforcing rib 30, a reinforcing small boss 31 and a slider insertion foot 32. The left and right connecting plates 4 and 15 are provided with an assembly positioning rib 26, a wire anti-skid groove 27 and a contact plate 28.

[0050] The upper cover 1 is provided with a connecting plate fixing groove 18, a slider motion groove 20, a wire insertion hole 22, a connecting terminal fixing groove 21 and a connecting screw hole 19. The inside of the upper cover 1 is fixedly connected with a connecting plate fixing column 23. The base 2 is also provided with the connecting plate fixing groove 18, the slider motion groove 20, the wire insertion hole 22, the connecting terminal fixing groove 21 and the connecting screw hole 19. The inside of the base 2 is fixedly connected with a connecting plate positioning rib 25 and a spring sheet positioning small column 24.

[0051] The slider 36 is embedded in the corresponding slider motion groove 20 of the base 2. The circular hole end of the spring sheet 5 is sleeved on the corresponding column of the base 2. The other end of the spring sheet 5 is inserted into the corresponding spring sheet positioning groove 39 of the slider 36.

[0052] The handle 7 and the bracket 14 are sleeved on the corresponding column of the base 2. The lock catch 10 and the jumper 9 are sleeved on the corresponding column of the bracket 14. The rotating disc 6 is sleeved on the corresponding column of the base 2 and is located above the bracket 14 and the spring sheet 5. After the connecting plate is inserted into the connecting terminal 3, the connecting plate is embedded on the corresponding connecting plate fixing groove 18 of the shell. The rotating disc tension spring 12 is hung on the corresponding column of the rotating disc 6 and the base 2. The bracket tension spring 16 is hung on the corresponding column of the bracket 14 and the base 2.

[0053] Further, the moving contact assembly 17 is divided into three kinds, one normally open and one normally closed, two normally open and two normally closed. The operation handle 7 closes the new circuit breaker accessory. The handle 7 pushes the U-shaped connecting rod 8 to make the lock catch 10 and the jumper 9 locked. Under the rotary motion of the handle 7, the bracket 14 drives the rotating disc 6 to make the spring sheet 5 push the moving contact assembly 17 to move in the left direction in the slider motion groove 20 of the shell. At this time, the normally closed contact of one normally open and one normally closed (1NO1NC) is converted from the on state to the off state. The normally open contact is converted from the off state to the on state. The two normally closed contacts of two normally closed (2NC) are converted from the on state to the off state. The two normally open contacts of two normally open (2NO) are converted from the off state to the on state.

[0054] When the circuit breaker is tripped, the lock catch 10 and the jumper 9 of the new circuit breaker accessory are unlocked under the drive of the connecting shaft 11. Under the action of the rotating disc tension spring 12 and the bracket tension spring 16, the mechanism is reset. The moving contact assembly 17 returns to the initial position under the action of the spring sheet 5. Therefore, the contacts of the new circuit breaker accessory are reset.

[0055] The moving contact assemblies 17 of two normally open and two normally closed are the same in structure.

[0056] The moving contact assembly 17 is a normally open and a normally closed, the moving contact assembly 17 includes a slider 36, two contact compression springs 35, two moving contact bridges 42 and four moving contact points 41;

[0057] The slider 36 is provided with a moving contact bridge assembly area 40, a spring sheet positioning groove 39 and four spring positioning bosses 43;

[0058] Two moving contact bridges 42 are provided with two moving contact rivet holes 38, four moving contact points 41 are installed in the corresponding moving contact rivet holes 38, two moving contact bridges 42 are assembled on the moving contact bridge assembly area 40 of the slider 36 through the two moving contact points 41 thereon, and two contact compression springs 35 are fixed between the corresponding moving contact bridge 42 and the slider 36 through the two spring positioning bosses 43.

[0059] The assembly can easily realize 1 normally open and 1 normally closed, 2 normally open, 2 normally closed and other function combinations under the condition of the same general shell, the innovative design greatly expands the application boundary of the circuit breaker alarm assembly, and makes it can flexibly adapt to the differentiated needs in different power scenes.

[0060] The assembly adopts an independent loop mode in electrical connection, each loop operates independently, avoids the chain reaction caused by common end failure, and greatly improves the safety performance, and the electrical connection adopts a double-breakpoint mode of the moving contact bridge type, when breaking the circuit, the current is cut off through two breakpoints at the same time, the arc phenomenon is effectively suppressed, and the action performance is more stable and reliable.

[0061] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A circuit breaker alarm assembly comprising: Comprise: The upper cover (1) and the base (2), the base (2) is provided with left terminal block (4), right terminal block (15), spring sheet (5), rotating disc (6), handle (7), U-shaped connecting rod (8), jump buckle (9), lock buckle (10), rotating disc tension spring (12), support (14), terminal (3), support tension spring (16), moving contact assembly (17) and connecting shaft (11) respectively; The moving contact assembly (17) comprises a slider (36), a contact spring (35), a tension spring (44), two moving contact bridges (42) and four moving contact points (41); The slider (36) is provided with a moving contact bridge assembly area (40), a spring sheet positioning groove (39), two spring positioning bosses (43), a tension spring positioning cylinder (37) and a tension spring hook (13); Two moving contact bridges (42) are provided with two moving contact rivet holes (38), four moving contact points (41) are installed in the corresponding moving contact rivet holes (38), and two moving contact bridges (42) are assembled on the moving contact bridge assembly area (40) of the slider (36) through the two moving contact points (41) thereon; Among them, the contact spring (35) is fixed between the corresponding moving contact bridge (42) and the slider (36) through the spring positioning boss (43); Among them, one end of the tension spring (44) is hung on the tension spring hook (13) of the corresponding moving contact bridge (42), and the other end of the tension spring (44) is hung on the tension spring positioning cylinder (37) of the slider (36).

2. The circuit breaker alarm assembly of claim 1, wherein: The spring sheet (5) is provided with a motion connecting sheet (34), a positioning circular hole (33), a motion arm (29), a motion reinforcing rib (30), a reinforcing small boss (31) and a slider insertion foot (32).

3. The circuit breaker alarm assembly of claim 1, wherein: The left terminal block (4) and the right terminal block (15) are provided with assembly positioning ribs (26), wire anti-skid grooves (27) and contact point contact plates (28).

4. The circuit breaker alarm assembly of claim 1, wherein: The upper cover (1) is provided with a terminal block fixing groove (18), a slider movement groove (20), a wire insertion hole (22), a terminal fixing groove (21) and a terminal screw hole (19), and the inside of the upper cover (1) is fixedly connected with a terminal block fixing column (23).

5. The circuit breaker alarm assembly of claim 4, wherein: The base (2) is also provided with a terminal block fixing groove (18), a slider movement groove (20), a wire insertion hole (22), a terminal fixing groove (21) and a terminal screw hole (19), and the inside of the base (2) is fixedly connected with a terminal block positioning rib (25) and a spring sheet positioning small cylinder (24).

6. The circuit breaker alarm assembly of claim 1, wherein: The handle (7) and the support (14) are sleeved on the corresponding cylinders of the base (2), the lock buckle (10) and the jump buckle (9) are sleeved on the corresponding cylinders of the support (14).

7. The circuit breaker alarm assembly of claim 5, wherein: The slider (36) is embedded in the corresponding slider movement groove (20) of the base (2), the circular hole end of the spring sheet (5) is sleeved on the corresponding cylinder of the base (2), and the other end of the spring sheet (5) is inserted into the corresponding spring sheet positioning groove (39) of the slider (36).

8. The circuit breaker alarm assembly of claim 1, wherein: The rotating disc (6) is sleeved on the corresponding cylinder of the base (2) and located above the support (14) and the spring sheet (5), and after the terminal block is inserted into the terminal (3), it is embedded on the corresponding terminal block fixing groove (18) of the shell; The rotating disc pull spring (12) is hung on the cylinder corresponding to the rotating disc (6) and the base (2), and the support pull spring (16) is hung on the cylinder corresponding to the support (14) and the base (2).

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