Circuit breaker

Abstract

The embodiment of the utility model provides a circuit breaker. The circuit breaker comprises a shell; the electromagnetic assembly is arranged in the shell and comprises an electromagnetic coil and a movable iron core arranged in the electromagnetic coil, and the movable iron core can move in the first direction under the condition that the electromagnetic coil is powered on; the moving part is arranged in the shell and is connected with the movable iron core; the moving contact assembly is arranged in the shell, and the moving contact assembly interacts with the moving part and can be driven by the moving part to move; the switch assembly is arranged on the shell and comprises a microswitch; the trigger piece is arranged on one of the movable iron core, the movable piece and the movable contact assembly, and when the movable iron core is pressed to move in the first direction, the trigger piece is driven by the movable iron core to move and can press the microswitch. And under the condition that the microswitch is pressed, the electromagnetic coil is electrified.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the technical field of electrical equipment, and more particularly, to a circuit breaker. Background Art

[0002] The circuit breaker includes a mechanical switch and an electronic switch. When the mechanical switch and the electronic switch are connected in series, the mechanical switch should be closed before the electronic switch. The mechanical switch can be closed and opened by manually pressing a button or by remotely controlling the electromagnetic component to drive the moving contact component.

[0003] During the manual closing and opening process of a conventional circuit breaker, the moving contact assembly needs to be pressed from the closing position / opening position to the dead point position, and then rebound to the opening position / closing position. During the process of pressing the moving contact assembly to the dead point position, if the operator stops applying force after the micro switch is pressed, the electronic switch will switch states, but the moving contact assembly rebounds back to the original position, resulting in the circuit breaker being unable to achieve the function of closing first and opening later. Utility Model Content

[0004] An object of the present disclosure is to provide a circuit breaker to at least partially solve the above problems.

[0005] In one aspect of the present disclosure, a circuit breaker is provided, which includes a shell; an electromagnetic assembly, which is arranged in the shell and includes an electromagnetic coil and a moving iron core arranged in the electromagnetic coil, and when the electromagnetic coil is energized, the moving iron core can move along a first direction; a moving member, which is arranged in the shell and connected to the moving iron core; a moving contact assembly, which is arranged in the shell, and the moving contact assembly interacts with the moving member and can move under the drive of the moving member; a switch assembly, which is arranged on the shell and includes a micro switch; and a trigger member, which is arranged on one of the moving iron core, the moving member and the moving contact assembly, wherein in the process of pressing the moving iron core to move along the first direction, the trigger member moves under the drive of the moving iron core and can press the micro switch, and when the micro switch is pressed, the electromagnetic coil is energized.

[0006] According to an embodiment of the present disclosure, in the process of pressing the moving iron core to move along the first direction, the trigger member can press the micro switch. When the micro switch is pressed, the electromagnetic coil is energized, and the moving iron core is driven by the electromagnetic force to move along the first direction, thereby driving the moving contact assembly to continue to move, avoiding the problem of the moving iron core and the moving contact assembly rebounding due to the operator stopping the force. Therefore, the circuit breaker of the embodiment of the present disclosure adds an auxiliary suction function during the manual closing and opening process, and in the case of the electronic switch switching state, avoids the problem of the mechanical switch not switching due to the rebound of the moving iron core and the moving contact assembly, thereby ensuring that the circuit breaker realizes the function of closing first and opening later.

[0007] In some embodiments, the moving contact assembly includes a moving contact bracket, the trigger member is disposed on the moving contact bracket, and one end of the trigger member passes through the housing.

[0008] In some embodiments, the switch assembly also includes a circuit board arranged on the outer surface of the shell, the circuit board includes a movable hole, the micro switch is arranged on the circuit board adjacent to the movable hole, and one end of the trigger member passing through the shell is located in the movable hole.

[0009] In some embodiments, the moving contact assembly can move a first distance along the first direction to switch from the open position to the dead point position, and move a second distance along the second direction to switch from the dead point position to the closed position, and the first direction is opposite to the second direction.

[0010] In some embodiments, when the moving contact assembly moves a third distance from the opening position along the first direction, the trigger member presses the micro switch, and the third distance is greater than the difference between the first distance and the second distance.

[0011] In some embodiments, when the moving contact assembly moves a fourth distance from the dead point position along the second direction, the trigger member releases the micro switch, and the fourth distance is smaller than the second distance.

[0012] In some embodiments, the circuit breaker further comprises a transmission member disposed in the housing, an end of the moving member facing away from the moving iron core contacts the transmission member, and the transmission member contacts the moving contact assembly.

[0013] In some embodiments, the circuit breaker also includes a locking member fixedly disposed in the housing, the locking member includes a movable channel and a limiting groove connected to the movable channel, the movable member includes a first main body portion and a first limiting portion disposed on an outer surface of the first main body portion, the first main body portion is located in the movable channel, and the first limiting portion is located in the limiting groove.

[0014] In some embodiments, the transmission member includes a second limiting portion, and when the transmission member rotates, the second limiting portion rotates to a position corresponding to the limiting groove, or rotates to a position offset from the limiting groove.

[0015] In some embodiments, the locking member includes a locking bevel, and an end of the second limiting portion facing away from the moving contact assembly is provided with a rotation bevel, and the rotation bevel interacts with the locking bevel to drive the transmission member to rotate.

[0016] It should be understood that the content described in this section is not intended to limit the key features or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0018] Figure 1 A schematic structural diagram of a circuit breaker according to some embodiments of the present disclosure is shown;

[0019] Figure 2 A cross-sectional view of a circuit breaker according to some embodiments of the present disclosure is shown, wherein the moving contact assembly is in an open position;

[0020] Figure 3 An exploded view of a moving member, a transmission member, and a locking member according to some embodiments of the present disclosure is shown;

[0021] Figure 4 A schematic structural diagram of a moving contact assembly and a trigger member according to some embodiments of the present disclosure is shown;

[0022] Figure 5 A schematic diagram showing the operation of a moving contact assembly according to some embodiments of the present disclosure is shown;

[0023] Figure 6 A cross-sectional view of a circuit breaker according to some embodiments of the present disclosure is shown, wherein the moving contact assembly is in a dead point position during a closing process;

[0024] Figure 7 A cross-sectional view of a circuit breaker according to some embodiments of the present disclosure is shown, wherein the moving contact assembly is in a closed position;

[0025] Figure 8 A cross-sectional view of a circuit breaker according to some embodiments of the present disclosure is shown, wherein the moving contact assembly is at a dead point position during the opening process;

[0026] Fig. 9 Shows Figure 7 The structural schematic diagram of the moving part, the transmission part and the locking part is shown.

[0027] Description of reference numerals:

[0028] 100 is a circuit breaker, 101 is an opening position, 102 is a dead point position, 103 is a closing position, 104 is a stop position, 105 is an operating position, and 106 is a contact position;

[0029] 1 is a housing, 11 is a button, 12 is a mounting portion, and 13 is a second elastic member;

[0030] 2 is an electromagnetic assembly, 21 is an electromagnetic coil, and 22 is a moving iron core;

[0031] 3 is a moving part, 31 is a first main body, 311 is a first actuating inclined surface, and 32 is a first limiting part;

[0032] 4 is a moving contact assembly, 41 is a moving contact bracket, 42 is a moving contact point, and 43 is a first elastic member;

[0033] 5 is a switch assembly, 51 is a micro switch, 52 is a circuit board, 521 is a moving hole, and 522 is a mounting hole;

[0034] 6 is a trigger member, 61 is a first surface, and 62 is a second surface;

[0035] 7 is a transmission member, 71 is a second main body, 711 is a second actuating inclined plane, 72 is a second limiting portion, and 721 is a rotating inclined plane;

[0036] 8 is a locking member, 81 is a moving channel, 82 is a limiting groove, and 83 is a locking inclined surface;

[0037] 9 is a static contact assembly;

[0038] X is the first direction; Y is the second direction;

[0039] X1 is the first distance, X2 is the second distance, X3 is the third distance, and X4 is the fourth distance. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0041] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects.

[0042] As described above, the mechanical switch in the circuit breaker needs to be closed before the electronic switch. However, in the process of manual closing and opening of conventional circuit breakers, the moving contact assembly needs to be pressed from the closed position / open position to the dead point position, and then rebound to the open position / closed position. In the process of pressing the moving contact assembly to the dead point position, if the operator stops applying force after the microswitch is pressed, the electronic switch will switch states, but the moving contact assembly will rebound to the original position. Then the state of the electronic switch does not match the state of the mechanical switch, resulting in the circuit breaker being unable to achieve the function of closing before opening. An embodiment of the present disclosure provides a circuit breaker 100 to at least partially solve the above-mentioned problems. In the following, it will be combined with Figures 1 to 9 The principles of the present disclosure are described.

[0043] Figure 1 A schematic structural diagram of a circuit breaker 100 according to some embodiments of the present disclosure is shown. Figure 2 1 shows a cross-sectional view of a circuit breaker 100 according to some embodiments of the present disclosure, wherein the moving contact assembly 4 is in an open position 101. Figure 1 to Figure 2 As shown, the circuit breaker 100 described herein generally includes a housing 1, an electromagnetic assembly 2, a moving member 3, a moving contact assembly 4, a switch assembly 5, a trigger member 6, a transmission member 7, a locking member 8, and a stationary contact assembly 9. The housing 1 serves as a mounting carrier, and the electromagnetic assembly 2, the moving member 3, the moving contact assembly 4, the transmission member 7, the locking member 8, and the stationary contact assembly 9 are all arranged in the housing 1. The switch assembly 5 is arranged on the housing 1. A portion of the trigger member 6 is arranged in the housing 1, and a portion of the trigger member 6 can pass through the housing 1 to interact with the switch assembly 5.

[0044] refer to Figure 1 to Figure 2In some embodiments, the electromagnetic assembly 2 may include an electromagnetic coil 21 and a moving iron core 22. The moving iron core 22 is disposed in the electromagnetic coil 21. When the electromagnetic coil 21 is energized, the moving iron core 22 is driven by the electromagnetic force to move along the first direction X, thereby realizing the electric closing and opening process of the mechanical switch. In addition, a button 11 is provided on the housing 1, and the button 11 can be connected to the moving iron core 22. Therefore, when the electromagnetic coil 21 is not energized, the moving iron core 22 can be driven to move along the first direction X by manually pressing the button 11, thereby realizing the manual closing and opening process of the mechanical switch.

[0045] Figure 3 An exploded view of a moving member 3, a transmission member 7 and a locking member 8 according to some embodiments of the present disclosure is shown. Figure 3 The locking member 8 in the figure does not show part of the base to avoid blocking the internal components. Figures 2 to 3 As shown, in some embodiments, the moving member 3 is connected to the moving iron core 22, so the moving member 3 can move with the moving iron core 22. The moving contact assembly 4 interacts with the moving member 3, so the moving contact assembly 4 can move under the driving of the moving member 3.

[0046] Specifically, refer to Figures 2 to 3 , the end of the moving member 3 away from the moving iron core 22 contacts the transmission member 7, and the transmission member 7 contacts the moving contact assembly 4. Therefore, in the process of manually pressing the moving iron core 22 or driving the moving iron core 22 by electromagnetic force, the moving iron core 22 can move along the first direction X, and the moving member 3, the transmission member 7, and the moving contact assembly 4 also move along the first direction X driven by the moving iron core 22, thereby realizing the closing and opening process of the mechanical switch.

[0047] Return to reference Figure 1 In some embodiments, the switch assembly 5 may include a micro switch 51 and a circuit board 52, wherein the micro switch 51 is disposed on the circuit board 52. The circuit board 52 is disposed on the outer surface of the housing 1. The circuit board 52 includes a moving hole 521. The micro switch 51 is disposed adjacent to the moving hole 521. One end of the trigger member 6 that passes through the housing 1 is located in the moving hole 521. Thus, the trigger member 6 can interact with the micro switch 51.

[0048] The switch assembly 5 according to the embodiment of the present disclosure can be arranged on the housing 1 in any manner, and the embodiment of the present disclosure is not limited to this. Figure 1 In some embodiments, the circuit board 52 includes a pair of mounting holes 522. Accordingly, the housing 1 includes a pair of mounting portions 12. Each mounting hole 522 can be matched with a corresponding mounting portion 12.

[0049] It can be understood that the trigger member 6 can be set on any movable component in the circuit breaker 100. For example, the trigger member 6 can be set on one of the moving iron core 22, the moving member 3 and the moving contact assembly 4. Therefore, when the moving iron core 22 moves along the first direction X, the trigger member 6 can move driven by the moving iron core 22. In addition, when the moving iron core 22 moves along the second direction X, the trigger member 6 can also move driven by the moving iron core 22. For example, the trigger member 6 can also be set on the button 11, so that the trigger member 6 can move with the button 11. The embodiments of the present disclosure are not limited to this.

[0050] Furthermore, since the trigger member 6 can move in the moving hole 521 along the first direction X during the manual pressing of the moving iron core 22, the trigger member 6 can press the micro switch 51 or release the micro switch 51. In addition, the micro switch 51 can be connected to the circuit board 52, the circuit board 52 can be connected to the control board (not shown in the figure), and the control board can be connected to the electromagnetic coil 21. Therefore, when the micro switch 51 is pressed, the control board can receive the signal output by the micro switch 51, and the control board can remotely control the electromagnetic coil 21 to be energized.

[0051] Furthermore, when the micro switch 51 is not pressed, the contact of the micro switch 51 is disconnected. When the micro switch 51 is pressed, the spring of the micro switch 51 is pressed by the trigger member 6 and drives the contact to contact.

[0052] It should be noted that the reference Figure 1 to Figure 2 On the one hand, the trigger member 6 moves along the first direction X, and the spring of the micro switch 51 moves along the direction perpendicular to the first direction X after being pressed by force. That is to say, the moving direction of the trigger member 6 is different from the moving direction of the spring of the micro switch 51, so the moving distance of the trigger member 6 is different from the moving distance of the spring. Then, even if the trigger member 6 moves a long distance along the first direction X, it can prevent the spring from moving beyond its moving stroke limit, thereby avoiding damage to the micro switch 51. On the other hand, the trigger member 6 includes a first surface 61 and a second surface 62, the first surface 61 is inclined, and the second surface 62 is vertically arranged along the first direction X. In the process of the trigger member 6 pressing the micro switch 51, the spring is gradually pressed by the interaction between the first surface 61 and the spring, and as the trigger member 6 continues to move along the first direction X, the second surface 62 interacts with the spring, and the spring does not move. In this way, damage to the micro switch 51 can also be avoided.

[0053] Furthermore, during the process of electric closing and opening, since the control panel can be connected to the electromagnetic coil 21, the electromagnetic coil 21 can be energized by remote control through the control panel.

[0054] According to the embodiment of the present disclosure, in the process of pressing the movable iron core 22 to move along the first direction X, the trigger member 6 can press the micro switch 51. When the micro switch 51 is pressed, the electromagnetic coil 21 is energized, and the movable iron core 22 is driven by the electromagnetic force to move along the first direction X, thereby driving the movable contact assembly 4 to continue to move, avoiding the problem of the movable iron core 22 and the movable contact assembly 4 rebounding due to the operator stopping the force.

[0055] In summary, the circuit breaker 100 of the embodiment of the present disclosure adds an auxiliary suction function during the manual closing and opening process. When the electronic switch is in the switching state, the problem of the mechanical switch not switching state caused by the rebound of the moving iron core 22 and the moving contact assembly 4 is avoided, thereby ensuring that the circuit breaker 100 realizes the function of closing first and opening later.

[0056] Figure 4 FIG. 4 shows a schematic diagram of the structure of the moving contact assembly 4 and the trigger member 6 according to some embodiments of the present disclosure. Figure 4 As shown, in some embodiments, the moving contact assembly 4 includes a moving contact bracket 41. The trigger member 6 can be arranged on the moving contact bracket 41. In the following, the working principle of the circuit breaker 100 of the embodiment of the present disclosure will be mainly described by the case where the trigger member 6 is arranged on the moving contact bracket 41. The case where the trigger member 6 is arranged on other components is similar. As long as the relative relationship between the action position 105 and the following position is ensured, it will not be repeated here.

[0057] Figure 5 FIG. 4 shows a schematic diagram of the operation of the moving contact assembly 4 according to some embodiments of the present disclosure. Figure 5 As shown, specifically, the moving contact assembly 4 may include an opening position 101, a dead point position 102, a closing position 103, a stop position 104, an action position 105, and a contact position 106. Understandably, in the following, the first direction X is opposite to the second direction Y. The first distance X1 should be greater than the second distance X2. The third distance X3 should be greater than the difference between the first distance X1 and the second distance X2. The fourth distance X4 should be less than the second distance X2. When the moving contact assembly 4 is in the contact position 106, the moving contact 42 and the static contact (not shown in the figure) are just in contact.

[0058] refer to Figure 5 In the closing process, the moving contact assembly 4 can move the first distance X1 along the first direction X to switch from the opening position 101 to the dead point position 102. In the switching process, the moving contact assembly 4 first reaches the contact position 106, and then the moving contact assembly 4 first reaches the closing position 103, and then when the moving contact assembly 4 moves the third distance X3 from the opening position 101, the moving contact assembly 4 first reaches the action position 105, and at the action position 105, the trigger member 6 presses the micro switch 51.

[0059] Continue to refer Figure 5 Further, after the moving contact assembly 4 reaches the dead point position 102, the moving contact assembly 4 can move the second distance X2 along the second direction Y to reset from the dead point position 102 to the closing position 103. During the resetting process, when the moving contact assembly 4 moves the fourth distance X4 from the dead point position 102, the moving contact assembly 4 can reach the action position 105 again, and at the action position 105, the trigger member 6 releases the micro switch 51.

[0060] Continue to refer Figure 5 In the opening process, on the contrary, the moving contact assembly 4 can move the second distance X2 along the first direction X to switch from the closing position 103 to the dead point position 102. In the switching process, the moving contact assembly 4 can pass through the action position 105 for the first time, and at the action position 105, the trigger member 6 presses the micro switch 51.

[0061] Continue to refer Figure 5 , further, after the moving contact assembly 4 reaches the dead point position 102, the moving contact assembly 4 can move the first distance X1 along the second direction Y to switch from the dead point position 102 to the opening position 101. In the switching process, first, when the moving contact assembly 4 moves the fourth distance X4 from the dead point position 102, the moving contact assembly 4 can pass through the action position 105 again, and at the action position 105, the trigger member 6 releases the micro switch 51. Then, when the moving contact assembly 4 moves the second distance X2 from the dead point position 102, the moving contact assembly 4 can reach the closing position 103 again. Then the moving contact assembly 4 can reach the contact position 106.

[0062] In summary, whether in the closing process or the opening process of the circuit breaker 100, the time when the moving contact assembly 4 is in the action position 105 for the first time is before the time when the moving contact assembly 4 is in the dead point position 102, and the time when the moving contact assembly 4 is in the action position 105 for the first time is after the time when the moving contact assembly 4 is in the closing position 103 for the first time. It can be understood that the relative relationship between the action position 105 and other positions is conducive to coordinating the state of the mechanical switch and the state of the electronic switch, thereby ensuring that the circuit breaker 100 realizes the function of closing before opening.

[0063] Continue to refer Figure 5 Furthermore, the movable contact assembly 4 can move a certain distance along the first direction X from the dead point position 102 to the stop position 104. The stop position 104 is designed to ensure the structural margin, thereby ensuring that the movable contact assembly 4 can always move to the dead point position 102.

[0064] Continue to refer Figure 4Further, the moving contact 42 and the first elastic member 43 are respectively located inside the moving contact bracket 41. One end of the first elastic member 43 is connected to the inner wall of the moving contact bracket 41, and the other end of the first elastic member 43 is connected to the moving contact 42. Figure 2 One end of the second elastic member 13 is connected to the moving contact bracket 41 , and the other end of the second elastic member 13 is connected to the housing 1 .

[0065] Understandable, continue to refer to Figures 4 to 5 Since the time when the moving contact assembly 4 is in the contact position 106 is before the time when the moving contact assembly 4 is in the closing position 103 for the first time, after the moving contact assembly 4 reaches the contact position 106, the moving contact 41 contacts the static contact, the moving contact support 41 can continue to move along the first direction X, the first elastic member 43 can be compressed, and the force of the first elastic member 43 can make the moving contact 42 pressed against the static contact assembly 9. In addition, continue to refer to Figure 2 and Figure 5 In the process of the moving contact assembly 4 switching from the closing position 103 to the dead point position 102, the first elastic member 43 can be continuously compressed, the second elastic member 13 can also be continuously compressed, and the second elastic member 13 can store energy. After the moving contact assembly 4 reaches the dead point position 102, the second elastic member 13 releases energy and can drive the moving contact assembly 4 to move along the second direction Y.

[0066] Return to reference Figures 2 to 3 In some embodiments, the locking member 8 is coaxially arranged with the moving member 3, so that the moving member 3 can move along the locking member 8. Specifically, the locking member 8 is fixedly arranged in the housing 1. The locking member 8 may include a moving channel 81 and a limiting groove 82 connected to the moving channel 81, and the limiting groove 82 is distributed on the outside of the moving channel 81. The moving member 3 may include a first main body portion 31 and a first limiting portion 32 arranged on the outer surface of the first main body portion 31. The first main body portion 31 can be located in the moving channel 81, and the first limiting portion 32 can be located in the limiting groove 82. Thus, the moving member 3 can move along the locking member 8 and be restricted from rotating.

[0067] Continue to refer Figure 3 In some embodiments, the transmission member 7 may include a second main body portion 71 and a second limiting portion 72. The second limiting portion 72 is disposed on the outer surface of the second main body portion 71. Figures 2 to 3 When the moving contact assembly 4 is in the opening position 101, the second limiting portion 72 is located at a position corresponding to the limiting groove 82. More specifically, the second limiting portion 72 is located in the limiting groove 82. Thus, the transmission member 7 can move along the first direction X relative to the locking member 8.

[0068] Figure 6FIG. 1 shows a cross-sectional view of a circuit breaker 100 according to some embodiments of the present disclosure, wherein the moving contact assembly 4 is in a dead point position 102 during the closing process. Figure 2 , Figure 3 as well as Figure 6 As shown, during the process of the moving contact assembly 4 switching from the opening position 101 to the dead point position 102 , the moving member 3 and the transmission member 7 can move in the limiting groove 82 and move along the first direction X.

[0069] Figure 7 A cross-sectional view of a circuit breaker 100 according to some embodiments of the present disclosure is shown, wherein the moving contact assembly 4 is in a closed position 103 . Figure 8 A cross-sectional view of a circuit breaker 100 according to some embodiments of the present disclosure is shown, wherein the moving contact assembly 4 is at a dead point position 102 during the opening process. Fig. 9 Shows Figure 7 The structure diagram of the moving member 3, the transmission member 7 and the locking member 8 is shown in FIG. Figure 3 and Fig. 9 As shown, the locking member 8 includes a locking bevel 83. A rotating bevel 721 is provided at one end of the second limiting portion 72 facing away from the moving contact assembly 4. The rotating bevel 721 can interact with the locking bevel 83 to drive the transmission member 7 to rotate. Correspondingly, a first actuating bevel 311 can be provided on the first main body portion 31. A second actuating bevel 711 can be provided on the second main body portion 71. The first actuating bevel 311 can interact with the second actuating bevel 711, and when the first actuating bevel 311 interacts with the second actuating bevel 711, the moving member 3 can provide a driving force to the transmission member 7 to drive the transmission member 7 to rotate.

[0070] Obviously, if Figure 6 to Figure 7 as well as Fig. 9 As shown, in the process of the moving contact assembly 4 switching from the dead point position 102 to the closing position 103, firstly, because the first actuating inclined surface 311 can interact with the second actuating inclined surface 711, the moving member 3 can provide a driving force to the transmission member 7 to drive the transmission member 7 to rotate clockwise, and then the rotating inclined surface 721 interacts with the locking inclined surface 83 and continues to drive the transmission member 7 to rotate clockwise, and finally the second limiting portion 72 rotates to a position staggered from the limiting groove 82, and the rotating inclined surface 721 cooperates with the locking inclined surface 83 to lock. Thus, the transmission member 7 is locked, and the moving contact assembly 4 is locked in the closing position 103 and cannot continue to move along the second direction Y.

[0071] like Figure 3 , Figures 7 to 9As shown, in the process of the moving contact assembly 4 switching from the closing position 103 to the dead point position 102, since the moving member 3 moves along the first direction X, and the moving member 3 pushes the transmission member 7 to move along the first direction X, therefore, in the process of the moving contact assembly 4 switching from the dead point position 102 to the opening position 101, through the interaction between the first actuating inclined surface 311 and the second actuating inclined surface 711, the moving member 3 can provide a driving force to the transmission member 7 to rotate the transmission member 7 clockwise, and make the rotating inclined surface 721 of the transmission member 7 staggered with the locking inclined surface 83, and then the rotating inclined surface 721 interacts with the locking inclined surface 83 and continues to drive the transmission member 7 to rotate clockwise, and finally the second limiting portion 72 rotates to the position corresponding to the limiting groove 82. Thus, the transmission member 7 is unlocked, and the moving contact assembly 4 can continue to move along the second direction Y until the opening position 101.

[0072] It should be noted that the end of the moving member 3 that is away from the moving iron core 22 may be located in the moving contact bracket 41. Figure 3 In some embodiments, the moving member 3 may pass through the transmission member 7. Of course, in other embodiments, the moving member 3 may not be disposed in the transmission member 7, and the moving contact bracket 41 may pass through the transmission member 7.

[0073] Further, refer to Figure 7 and Fig. 9 , the moving member 3 can pass through the transmission member 7 and be located in the moving contact bracket 41. When the moving contact assembly 4 is in the closed position, since the end of the moving member 3 that faces away from the moving iron core 22 is located in the moving contact bracket 41, even if the moving contact bracket 41 is restricted and cannot move, the moving member 3 can move a distance along the second direction Y in the space of the moving contact bracket 41 until the passive contact bracket 41 is limited. Therefore, when the moving contact assembly 4 is in the closed position, the moving member 3 cannot move to the position corresponding to when the moving contact assembly 4 is in the open position, so that the button 11 cannot move to the position corresponding to when the moving contact assembly 4 is in the open position, thereby avoiding the problem of incorrect indication. In addition, by moving the moving member 3 along the second direction Y for a distance, space for the transmission member 7 to rotate is provided.

[0074] It can be understood that during the closing process of the moving contact assembly 4, although the moving member 3 is in the moving contact bracket 41, the moving member 3 does not contact the moving contact bracket 41. Therefore, the moving member 3 acts on the moving contact bracket 41 through the transmission member 7, thereby driving the moving contact bracket 41 to move.

[0075] refer to Figure 3 and Fig. 9In some embodiments, the locking member 8 may include a pair of limiting grooves 82, and the angle between adjacent limiting grooves 82 may be 90°. Correspondingly, the moving member 3 may include a pair of first limiting portions 32, and the angle between adjacent first limiting portions 32 may be 90°. Correspondingly, the transmission member 7 may include a pair of second limiting portions 72, and the angle between adjacent second limiting portions 72 may be 90°.

[0076] Of course, according to the embodiment of the present disclosure, the moving part 3, the transmission part 7 and the locking part 8 may also include other structures, as long as they can realize the above functions (such as locking function) in the process of closing and opening the switch, and the embodiment of the present disclosure does not limit this.

[0077] Finally, combine Figure 2 as well as Figures 5 to 8 Describe the process of manual closing and opening and the process of automatic closing and opening respectively:

[0078] Manual closing: Reference Figure 2 and Figure 5 , press the button 11 along the first direction X, and the moving contact assembly 4 moves along the first direction X. The moving contact assembly 4 reaches the contact position 106, the moving contact assembly 4 contacts the static contact assembly 9, and the mechanical switch is closed. Then the moving contact assembly 4 reaches the closing position 103 for the first time. Continue to press the button 11 along the first direction X, the moving contact assembly 4 passes the action position 105 for the first time, and the trigger member 6 presses the micro switch 51. The micro switch 51 transmits a signal to the control board, and the control board controls the electromagnetic coil 21 to be energized to realize the auxiliary suction function. Reference Figures 5 and 6 , the moving contact assembly 4 switches to the dead point position 102, the second elastic member 13 releases energy and drives the moving contact assembly 4 to move along the second direction Y, the moving contact assembly 4 passes through the action position 105 again, and the trigger member 6 releases the micro switch 51. The micro switch 51 transmits a signal to the control board, and the control board controls the electronic switch to close. Figure 5 and Figure 7 , the moving contact assembly 4 switches to the closing position 103. Thus, the mechanical switch is closed before the electronic switch.

[0079] Manual opening: Reference Figure 5 and Figure 7 , the button 11 is pressed along the first direction X, and the moving contact assembly 4 moves along the first direction X. The moving contact assembly 4 passes through the action position 105 for the first time, and the trigger member 6 presses the micro switch 51. The micro switch 51 transmits a signal to the control board. On the one hand, the control board controls the electronic switch to be disconnected, and on the other hand, the control board controls the electromagnetic coil 21 to be energized to realize the auxiliary pull-in function. Figure 5 and Figure 8, the moving contact assembly 4 switches to the dead point position 102, the second elastic member 13 releases energy and drives the moving contact assembly 4 to move along the second direction Y. The moving contact assembly 4 passes through the action position 105 again, and the trigger member 6 releases the micro switch 51. Then the moving contact assembly 4 passes through the closing position 103 and the contact position 106 in sequence, and the mechanical switch is disconnected. Figure 2 and Figure 5 , the moving contact assembly 4 switches to the opening position 101. Thus, the mechanical switch is disconnected after the electronic switch.

[0080] Automatic closing: Reference Figures 2 to 5 , the electromagnetic coil 21 is remotely controlled and energized, the moving iron core 22 moves along the first direction X, and the moving contact assembly 4 moves along the first direction X. The moving contact assembly 4 reaches the contact position 106, the moving contact assembly 4 contacts the static contact assembly 9, and the mechanical switch is closed. Then the moving contact assembly 4 reaches the closing position 103 for the first time. Then the moving contact assembly 4 passes the action position 105 for the first time, and the trigger member 6 presses the micro switch 51. Reference Figures 5 and 6 , the moving contact assembly 4 switches to the dead point position 102, the second elastic member 13 releases energy and drives the moving contact assembly 4 to move along the second direction Y, the moving contact assembly 4 passes through the action position 105 again, and the trigger member 6 releases the micro switch 51. The micro switch 51 transmits a signal to the control board, and the control board controls the electronic switch to close. Figure 5 and Figure 7 , the moving contact assembly 4 switches to the closing position 103. Thus, the mechanical switch is closed before the electronic switch.

[0081] Automatic opening: Reference Figures 5 to 7 , the electromagnetic coil 21 is remotely controlled and energized, the moving iron core 22 moves along the first direction X, and the moving contact assembly 4 moves along the first direction X. The moving contact assembly 4 passes through the action position 105 for the first time, and the trigger member 6 presses the micro switch 51. The micro switch 51 transmits a signal to the control board, and the control board controls the electronic switch to be disconnected. Figure 5 and Fig. 9 , the moving contact assembly 4 switches to the dead point position 102, the second elastic member 13 releases energy and drives the moving contact assembly 4 to move along the second direction Y. The moving contact assembly 4 passes through the action position 105 again, and the trigger member 6 releases the micro switch 51. Then the moving contact assembly 4 passes through the closing position 103 and the contact position 106 in sequence, and the mechanical switch is disconnected. Figure 2 and Figure 5 , the moving contact assembly 4 switches to the opening position 101. Thus, the mechanical switch is disconnected after the electronic switch.

[0082] In summary, the circuit breaker 100 according to the embodiment of the present disclosure can realize the function of closing first and opening later, whether it is manual closing or automatic closing. In addition, a micro switch 51 is provided, and the state of the moving contact assembly 4 can also be detected through the working relationship between the micro switch 51 and the trigger member 6.

[0083] The design of closing first and breaking later according to the embodiment of the present disclosure can be applied to various circuit breakers to at least partially solve the above problems. It should be understood that the design of closing first and breaking later according to the embodiment of the present disclosure can also be applied to other electrical components, and the embodiment of the present disclosure is not limited to this.

[0084] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A circuit breaker (100), characterized in that: The circuit breaker (100) comprises: Housing (1); An electromagnetic assembly (2) is arranged in the housing (1) and comprises an electromagnetic coil (21) and a moving iron core (22) arranged in the electromagnetic coil (21), wherein when the electromagnetic coil (21) is energized, the moving iron core (22) is capable of moving along a first direction (X); A moving part (3) is arranged in the housing (1) and connected to the moving iron core (22); A moving contact assembly (4) is arranged in the housing (1), and the moving contact assembly (4) interacts with the moving member (3) and can move under the drive of the moving member (3); A switch assembly (5), arranged on the housing (1) and comprising a micro switch (51); and A trigger member (6) is arranged on one of the moving iron core (22), the moving member (3) and the moving contact assembly (4), wherein In the process of pressing the moving iron core (22) to move along the first direction (X), the trigger member (6) moves under the drive of the moving iron core (22) and is able to press the micro switch (51), and when the micro switch (51) is pressed, the electromagnetic coil (21) is energized.

2. The circuit breaker (100) according to claim 1, characterized in that: The moving contact assembly (4) comprises a moving contact bracket (41), the trigger member (6) is arranged on the moving contact bracket (41), and one end of the trigger member (6) passes through the housing (1).

3. The circuit breaker (100) according to claim 2, characterized in that: The switch assembly (5) further comprises a circuit board (52) arranged on the outer surface of the housing (1), the circuit board (52) comprising a movable hole (521), the micro switch (51) being arranged on the circuit board (52) adjacent to the movable hole (521), and one end of the trigger member (6) passing through the housing (1) is located in the movable hole (521).

4. The circuit breaker (100) according to claim 1, characterized in that: The moving contact assembly (4) is capable of moving a first distance (X1) along the first direction (X) to switch from an open position (101) to a dead point position (102), and moving a second distance (X2) along a second direction (Y) to switch from the dead point position (102) to a closed position (103), wherein the first direction (X) is opposite to the second direction (Y).

5. The circuit breaker (100) according to claim 4, characterized in that: When the moving contact assembly (4) moves a third distance (X3) from the opening position (101) along the first direction (X), the trigger member (6) presses the micro switch (51), and the third distance (X3) is greater than the difference between the first distance (X1) and the second distance (X2).

6. The circuit breaker (100) according to claim 4, characterized in that: When the moving contact assembly (4) moves a fourth distance (X4) from the dead point position (102) along the second direction (Y), the trigger member (6) releases the micro switch (51), and the fourth distance (X4) is smaller than the second distance (X2).

7. The circuit breaker (100) according to claim 1, characterized in that: The circuit breaker (100) further comprises a transmission member (7) arranged in the housing (1), an end of the moving member (3) facing away from the moving iron core (22) contacts the transmission member (7), and the transmission member (7) contacts the moving contact assembly (4).

8. The circuit breaker (100) according to claim 7, characterized in that: The circuit breaker (100) further comprises a locking member (8) fixedly arranged in the housing (1), the locking member (8) comprising a moving channel (81) and a limiting groove (82) communicating with the moving channel (81), the moving member (3) comprising a first main body portion (31) and a first limiting portion (32) arranged on an outer surface of the first main body portion (31), the first main body portion (31) being located in the moving channel (81), and the first limiting portion (32) being located in the limiting groove (82).

9. The circuit breaker (100) according to claim 8, characterized in that: The transmission member (7) comprises a second limiting portion (72), and when the transmission member (7) rotates, the second limiting portion (72) rotates to a position corresponding to the limiting groove (82), or rotates to a position offset from the limiting groove (82).

10. The circuit breaker (100) according to claim 9, characterized in that: The locking member (8) comprises a locking bevel (83), and an end of the second limiting portion (72) facing away from the moving contact assembly (4) is provided with a rotating bevel (721), and the rotating bevel (721) interacts with the locking bevel (83) to drive the transmission member (7) to rotate.

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