CN215183805U

CN215183805U - Novel miniature circuit breaker

Info

Publication number: CN215183805U
Application number: CN202121449698.7U
Authority: CN
Inventors: 李子琦; 卢权胜; 徐明华; 陈志强; 张敏
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-14
Anticipated expiration: 2031-06-28

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a novel miniature circuit breaker, which comprises a shell, a handle and a moving contact, wherein the handle and the moving contact are arranged in the shell; the shell is internally provided with a first mounting shaft and a second mounting shaft, the moving contact is movably connected with the first mounting shaft, the second mounting shaft is positioned on one side of the moving contact, and when the moving contact moves to a specified limit position towards the opening direction, the second mounting shaft abuts against the side edge of the moving contact to limit the position. The utility model discloses an installation axle two is supported and is leaned on in the moving contact side to a uniformity that extreme position can be guaranteed as far as possible to the spacing for the moving contact, therefore can guarantee the stability that the product moving contact opened a distance, and improve the uniformity that the product was made.

Description

Novel miniature circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field refers in particular to a novel miniature circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. For example, patent No. 2020108715510 entitled operating mechanism for remote control circuit breaker, although the patent avoids the axial movement of the movable contact, thereby ensuring the stable locking position and thus the action performance of the circuit breaker.

However, the moving contact is not limited in the moving direction of opening, so that when the moving contact moves in the opening direction due to the pushing force of the rotating handle and the elastic force of the elastic piece, the moving contact stops moving depending on the limit position to which the moving contact can move, and the limit position after opening is unstable. And the extreme position after opening can also be influenced by different precision caused by manual installation or accessory manufacturing. In addition, in practical use, a plurality of circuit breakers are arranged in parallel, so that the circuit breakers are not influenced in the use process due to the limit position, and a circuit breaker capable of improving the manufacturing consistency of products is needed.

Disclosure of Invention

The utility model aims at providing a novel miniature circuit breaker supports through installation axle two and leans on in the moving contact side to a spacing uniformity that can guarantee extreme position as far as possible for the moving contact, therefore can guarantee the stability that the product moving contact is opened apart from, and improve the uniformity that the product was made, so solve current circuit breaker and do not carry out spacing problem to the moving contact at the motion of separating brake direction.

The purpose of the utility model is realized like this:

a novel miniature circuit breaker comprises a shell, a handle and a moving contact, wherein the handle and the moving contact are arranged in the shell;

the shell is internally provided with a first mounting shaft and a second mounting shaft, the moving contact is movably connected with the first mounting shaft, the second mounting shaft is positioned on one side of the moving contact, and when the moving contact moves to a specified limit position towards the opening direction, the second mounting shaft abuts against the side edge of the moving contact to limit the position.

Preferably, the moving contact side edge is provided with a groove, and when the moving contact moves to a specified limit position in the opening direction, the mounting shaft is located in the groove and is used for limiting.

Preferably, a lock catch meshed with the connecting rod is arranged in the shell, the lock catch is sleeved on the outer side of the first mounting shaft, a limiting piece and a first elastic piece are arranged on the lock catch, and two ends of the first elastic piece respectively abut against the outer side of the limiting piece and the inner side of the second mounting shaft;

or the jump buckle and the lock catch meshed with the jump buckle are arranged in the shell, and the jump buckle is rotatably arranged on the movable contact;

the lock catch is sleeved on the outer side of the first installation shaft, a limiting part and a first elastic part are arranged on the lock catch, and two ends of the first elastic part are respectively abutted against the outer side of the limiting part and the inner side of the second installation shaft.

Preferably, the outer side of the limiting part protrudes outwards to form a limiting part, and the upper part of one end of the elastic part abuts against the lower part of the limiting part to limit.

Preferably, the casing includes preceding shell and backshell, and the mounting hole has been seted up to the backshell inboard, two one end joint of installation axle are in the mounting hole, and the other end supports and leans on in preceding shell inner wall.

Preferably, the shell is internally provided with an indicating piece, and the indicating piece is rotatably arranged on the movable contact and is respectively arranged on two sides of the movable contact together with the jump buckle;

the shell is provided with an outlet corresponding to the indicating piece and used for exposing the upper end face of the indicating piece, and whether the indicating piece is tripped or not is indicated by exposing colors at different positions of the indicating piece.

Preferably, the moving contact is connected with the jump buckle through a third mounting shaft, a limiting plate is arranged on the jump buckle, and the third mounting shaft is abutted to the limiting plate through bending so as to limit the position of the third mounting shaft.

Preferably, a second elastic element for driving the moving contact to move towards the opening direction is arranged between the side edge of the moving contact and the shell;

the moving contact side is provided with the connecting plate, and the connecting plate upside has seted up the draw-in groove, the connecting plate outside is located to two pot heads of elastic component to the joint is in the draw-in groove, and the other end supports to lean on in shells inner wall.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses an installation axle two is supported and is leaned on in the moving contact side to a uniformity that extreme position can be guaranteed as far as possible to the spacing for the moving contact, therefore can guarantee the stability that the product moving contact opened a distance, and improve the uniformity that the product was made.

2. The utility model discloses an elastic component both ends are supported respectively and are leaned on in the locating part outside and two inboards of installation axle, therefore at the combined floodgate in-process, along with the hasp rotates gradually, the torsion of elastic component one is diminishing gradually, and then leads to final tripping force can be littleer to be convenient for thread off.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a schematic structural diagram of the relevant parts of the moving contact.

Fig. 4 is a schematic diagram of the explosion structure of the relevant parts of the moving contact.

Fig. 5 is a schematic structural diagram of the moving contact.

Fig. 6 is a schematic structural view of the lock catch.

Reference numerals: 1-a shell; 11-mounting the shaft I; 12-mounting a second shaft; 13-a front shell; 14-rear shell;

15-an outlet; 16-mounting a shaft III; 17-a transparent member; 2-a handle; 3-moving contact; 31-a groove;

32-a connecting plate; 33-card slot; 34-an elongated slot; 4-jump buckle; 41-a limiting plate; 5-a connecting rod; 6, locking and buckling;

61-a stop; 62-a limiting part; 63-mounting a plate; 64-placing grooves; 7-elastic piece one; 8-an indicator; and 9-elastic part II.

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings.

The first embodiment is as follows: as shown in fig. 1-6, a novel miniature circuit breaker includes a housing 1, and a handle 2 and a movable contact 3 disposed in the housing 1, wherein a lower portion of the handle 2 is rotatably disposed in the housing 1, and the handle 2 is connected to the movable contact 3 through a connecting rod 5. Therefore, in the actual use process, the user drives the connecting rod 5 to rotate by pushing the handle 2, and then drives the movable contact 3 to rotate.

Meanwhile, a first mounting shaft 11 and a second mounting shaft 12 are arranged in the housing 1, wherein the moving contact 3 is movably connected with the first mounting shaft 11, and the second mounting shaft 12 is located on one side of the moving contact 3. Therefore in the in-service use process, when the moving contact 3 moves to a specified limit position towards the opening direction, the second mounting shaft 12 abuts against the side edge of the moving contact 3, so that the moving contact 3 is limited, the stability of the opening distance of the moving contact 3 of a product is further ensured, and the consistency of product manufacture is improved.

The designated limit position refers to that the moving contact 3 of each circuit breaker can reach the same position at the end of opening through limiting, so that consistency is ensured, and the movement is not stopped depending on the limit position to which the moving contact can move.

And the movable contact 3 is movably connected with the first mounting shaft 11: at first, the movable contact 3 is provided with an elongated slot 34, the first mounting shaft 11 is fixed in the housing 1, and a shaft sleeve is provided for protecting the first mounting shaft 11 and stabilizing the connection, so that when the movable contact 3 rotates, the inner side of the elongated slot 34 moves along the side wall of the first mounting shaft 11, and simultaneously, the movable contact 3 can also rotate by taking the first mounting shaft 11 as the center, and when one end of the elongated slot 34 contacts with the first mounting shaft 11, a certain limiting effect can be achieved.

Meanwhile, in order to make the limiting structure more stable and better in effect, the side edge of the moving contact 3 is provided with the groove 31, and when the moving contact 3 moves to the limit position towards the opening direction, the second mounting shaft 12 is located in the groove 31 and is used for limiting.

As shown in fig. 2 and 3, the casing 1 is provided with a trip 4 and a latch 6 engaged with the trip 4, and the trip 4 is rotatably provided on the movable contact 3. Meanwhile, the lock catch 6 is sleeved outside the first mounting shaft 11, when a user drives the jump buckle 4 to rotate for a certain angle by pushing the handle 2, the lock catch 6 can be meshed with the jump buckle 4, and then the jump buckle 4 rotates to drive the lock catch 6.

Therefore, in the actual use process, the user drives the connecting rod 5 to rotate by pushing the handle 2, and then drives the movable contact 3 to rotate.

Wherein the structure between hasp 6, installation axle 11 and the moving contact 3 is: firstly, the lock catch 6 is symmetrically provided with mounting plates 63 on one side, a placing groove 64 is formed between the mounting plates 63, the moving contact 3 is located in the placing groove 64, and the mounting shaft one 11 penetrates through the moving contact 3 and the mounting plates 63, so that the connection of the three is realized.

Meanwhile, the lock catch 6 is provided with a limiting member 61 and a first elastic member 7, and two ends of the first elastic member 7 respectively abut against the outer side of the limiting member 61 and the inner side of the second mounting shaft 12. The first elastic member 7 is a torsion spring, so that in the closing process, as the latch 6 rotates gradually, the torsion of the first elastic member 7 is gradually reduced, and the final tripping force is smaller.

And the patent literature among the background art, elastic component 7 sets up in hasp 6 and jump and detain 4 between to can not the thread slipping for guaranteeing that the product is reprinted, initial torsion can be bigger, again because both are synchronous rotations, therefore at whole combined floodgate in-process, the torsion of elastic component 7 remains unchanged always, so final tripping force can be bigger than normal, so both compare, the utility model discloses a structure is more convenient for the dropout.

As shown in fig. 6, the limiting member 61 is provided with a limiting portion 62 protruding outward, and an upper portion of one end of the first elastic member 7 abuts against a lower portion of the limiting portion 62 for limiting.

As shown in fig. 1 and 2, the mounting structure of the second mounting shaft 12 is: at first casing 1 includes preceding shell 13 and backshell 14, and the mounting hole has been seted up to backshell 14 inboard, and two 12 one ends joints of installation axle are in the mounting hole simultaneously, and the other end supports and leans on in preceding shell 13 inner wall, therefore spacing through both ends to also can carry on spacingly to two 12 installation axles when realizing the installation, avoid its removal.

As shown in fig. 1 to 4, an indicator 8 is disposed in the housing 1, and the indicator 8 is rotatably disposed on the movable contact 3 and disposed on two sides of the movable contact 3 respectively with the trip 4.

Meanwhile, the shell 1 is provided with an outlet 15 corresponding to the indicator 8 and used for exposing the upper end surface of the indicator 8. Therefore, in actual use, the color of different positions of the indicator 8 can be revealed to indicate whether the indicator is tripped or not. And a transparent member 17 is provided at the outlet 15 in order to protect the internal structure and to reveal the color.

As shown in fig. 2-4, the moving contact 3 and the trip 4 are connected by a third mounting shaft 16, and the trip 4 is provided with a limiting plate 41. Therefore, in actual use, the limiting plate 41 can be bent and abutted against the mounting shaft III 16, so that the limiting plate is used for limiting.

And the moving contact 3 is connected with the indicating piece 8 through the third mounting shaft 16, so that one-piece connection of a plurality of components is realized, coaxial and synchronous motion is ensured, and meanwhile, the installation and the structure simplification are facilitated.

As shown in fig. 2-4, a second elastic element 9 for driving the moving contact 3 to move in the opening direction is disposed between the side of the moving contact 3 and the housing 1.

Therefore, in the actual use process, when the user pushes the handle 2 to realize switching-on, the second elastic element 9 is in a compressed state, so that when the user pushes the handle 2 to realize switching-off, the movable contact 3 is driven to move in the switching-off direction by the elasticity of the second elastic element 9.

Meanwhile, the mounting structure of the second elastic piece 9 is as follows: first, the side of the moving contact 3 is provided with a connecting plate 32, and the upper side of the connecting plate is provided with a clamping groove 33. Therefore, when the device is installed, one end of the second elastic element 9 is sleeved on the outer side of the connecting plate 32 and clamped in the clamping groove 33, the other end of the second elastic element abuts against the inner wall of the shell 1, and the second elastic element 9 and the movable contact 3 can be connected more stably through the arrangement of the clamping groove 33.

Example two: this embodiment is substantially the same as the first embodiment, and is different from the first embodiment in that: the jumper 4 is not provided, but the connecting rod 5 is directly engaged with the latch 6, and the specific structure can refer to patent No. 2016100125608, which is named as an invention patent of an operating mechanism of a miniature circuit breaker.

The basic principles and main features of the invention and the advantages of the invention have been shown and described above. Simultaneously the utility model discloses do not receive the restriction of above-mentioned embodiment, therefore under the prerequisite that does not deviate from the utility model discloses principle and scope, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the protection of the utility model discloses the within range.

Claims

1. A novel miniature circuit breaker comprises a shell (1), and a handle (2) and a moving contact (3) which are arranged in the shell (1), wherein the lower part of the handle (2) is rotatably arranged in the shell (1), and the handle (2) is connected with the moving contact (3) through a connecting rod (5);

the method is characterized in that:

the utility model discloses a switch, including casing (1), the moving contact, installation axle (3) and installation axle one (11), be provided with installation axle one (11) and installation axle two (12) in casing (1), moving contact (3) and installation axle one (11) swing joint, and installation axle two (12) are located moving contact (3) one side, when moving contact (3) move to appointed extreme position towards the separating brake direction, thereby support to lean on in moving contact (3) side through installation axle two (12) and be used for spacingly.

2. A novel miniature circuit breaker according to claim 1, wherein: a groove (31) is formed in the side edge of the moving contact (3), and when the moving contact (3) moves to a specified limit position in the opening direction, the second mounting shaft (12) is located in the groove (31) and used for limiting.

3. A novel miniature circuit breaker according to claim 1, wherein: a lock catch (6) meshed with the connecting rod (5) is arranged in the shell (1), the lock catch (6) is sleeved on the outer side of the first mounting shaft (11), a limiting part (61) and a first elastic part (7) are arranged on the lock catch (6), and two ends of the first elastic part (7) are respectively abutted against the outer side of the limiting part (61) and the inner side of the second mounting shaft (12);

or a jump buckle (4) and a lock catch (6) meshed with the jump buckle (4) are arranged in the shell (1), and the jump buckle (4) is rotatably arranged on the moving contact (3);

the lock catch (6) is sleeved on the outer side of the first installation shaft (11), a limiting part (61) and a first elastic part (7) are arranged on the lock catch (6), and two ends of the first elastic part (7) are respectively abutted against the outer side of the limiting part (61) and the inner side of the second installation shaft (12).

4. A novel miniature circuit breaker according to claim 3, wherein: the limiting part (62) is arranged on the outer side of the limiting part (61) in an outwards protruding mode, and the upper portion of one end of the first elastic part (7) abuts against the lower portion of the limiting part (62) so that limiting can be achieved.

5. A new small-sized circuit breaker according to any one of claims 1-4, characterized in that: casing (1) is including preceding shell (13) and backshell (14), and backshell (14) inboard has seted up the mounting hole, two (12) one end joints of installation axle are in the mounting hole, and the other end supports and leans on in preceding shell (13) inner wall.

6. A new small-sized circuit breaker according to any one of claims 1-4, characterized in that: an indicating piece (8) is arranged in the shell (1), the indicating piece (8) is rotatably arranged on the moving contact (3), and the indicating piece and the jump buttons (4) are respectively arranged on two sides of the moving contact (3);

the shell (1) is provided with an outlet (15) corresponding to the indicator (8) and used for exposing the upper end face of the indicator (8), and whether the indicator is tripped or not is indicated by exposing colors of different positions of the indicator (8).

7. A novel miniature circuit breaker according to claim 3, wherein: the moving contact (3) and jump and detain the connection between (4) and connect through installation axle three (16), and jump and detain and be provided with limiting plate (41) on (4), through buckling limiting plate (41) and leaning on installation axle three (16) to be used for spacingly.

8. A new small-sized circuit breaker according to any one of claims 1-4, characterized in that: a second elastic element (9) for driving the moving contact (3) to move towards the opening direction is arranged between the side edge of the moving contact (3) and the shell (1);

moving contact (3) side is provided with connecting plate (32), and connecting plate upside has seted up draw-in groove (33), the connecting plate (32) outside is located to second (9) pot head of elastic component to the joint is in draw-in groove (33), and the other end supports and leans on in casing (1) inner wall.