A composite switch

Abstract

The present invention provides a composite switch, including a housing, a first terminal, a second terminal, a handle, a tripping connecting rod mechanism, an electromagnetic tripper, a first moving contact, a first static contact, a bimetallic strip, a current transformer, a first driving mechanism, a first driving member, a second driving member, a second driving mechanism, a second static contact, a third static contact, a second moving contact, a first connecting member, a second connecting member, a third connecting member and a circuit board; the first moving contact corresponds to the first static contact; the second moving contact corresponds to the second static contact and the third static contact. The composite switch of the present invention can solve the problems of poor protection accuracy and incompleteness of traditional circuit breakers, realize the power distribution protection function and realize intelligent control of the composite switch at the same time, is suitable for frequent on-off control, can be controlled on and off according to power demand, and does not affect the service life of the composite switch, and can also realize local or remote centralized monitoring and management, improving the safety and intelligence of power distribution.

Description

Technical Field

[0001] The invention belongs to the technical field of power electrical equipment, and in particular relates to a composite switch. Background Art

[0002] Circuit breakers are switchgear used in power distribution systems to cut off circuits when overload or short circuit occurs. They are widely used in power distribution sites such as industry, commerce and residential buildings. However, with the development of intelligent power distribution technology, traditional circuit breakers can no longer meet current needs, including the inability to frequently switch on and off to avoid affecting the stability of the circuit breaker and affecting its service life. They also require manual control, are not convenient for frequent switching, and are not suitable for intelligent control of power distribution switching. In addition, due to differences in physical properties of their own electromagnetic releases and bimetallic strips, traditional circuit breakers also have problems such as high discreteness, poor protection accuracy, and incomplete power distribution protection functions, which still poses a safety hazard to the power distribution system. In view of the above problems, the present invention discloses a composite switch to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects in the prior art and provide a composite switch that can solve the problems of poor protection accuracy and incomplete protection of traditional circuit breakers in the prior art low-voltage power distribution system, and the existence of potential safety hazards in power distribution. It can realize the power distribution protection function while realizing intelligent control of the composite switch, and is suitable for frequent on-off control of the circuit, and does not affect the service life of the composite switch, thereby significantly improving the power distribution safety and the degree of intelligent control of power distribution.

[0004] To achieve the above-mentioned purpose, an embodiment of the present invention provides a composite switch, including a shell, a first terminal, a second terminal, a handle, a tripping linkage mechanism, an electromagnetic release, a first moving contact, a first static contact and a bimetallic strip; the first moving contact corresponds to the first static contact; the handle is used to manually control the tripping linkage mechanism to disconnect or close the first moving contact and the first static contact; the tripping linkage mechanism is drivingly connected to the first moving contact; the first moving contact is electrically connected to the bimetallic strip; the first static contact is electrically connected to the electromagnetic release; and also includes a current transformer, a first driving mechanism, a first driving member, a second driving member, a second driving mechanism, a second static contact, a third static contact, a second moving contact, a first connecting member, a second connecting member, a third connecting member and a circuit board; the current transformer is sleeved on the first connecting member On at least one of the connecting member, the second connecting member, and the third connecting member; the current transformer is connected to the circuit board; the circuit board is connected to the first driving mechanism and / or the second driving mechanism; the first driving mechanism is drivingly connected to the first driving member; the first driving member is drivingly connected to the second driving member; the bimetallic strip is drivingly connected to the second driving member; the second driving member is drivingly connected to the tripping connecting rod mechanism; the second driving mechanism is drivingly connected to the second moving contact; the second moving contact corresponds to the second static contact and the third static contact; the first connecting member is electrically connected to the first terminal and the bimetallic strip respectively; the second connecting member is electrically connected to the electromagnetic release and the second static contact respectively; the third connecting member is electrically connected to the third static contact and the second terminal respectively.

[0005] Optionally, the first driving mechanism is at least one of an electromagnetic coil, an electric push rod, a hydraulic rod, and a pneumatic rod.

[0006] Furthermore, the second driving mechanism includes a static iron core, a coil and a moving iron core, and the moving iron core is drivingly connected to the second moving contact. Optionally, when the static iron core absorbs the moving iron core, the second moving contact is closed with the second static contact and the third static contact; when the static iron core disconnects the moving iron core, the second moving contact is disconnected with the second static contact and the third static contact; or in another way, when the static iron core absorbs the moving iron core, the second moving contact is disconnected with the second static contact and the third static contact; when the static iron core disconnects the moving iron core, the second moving contact is closed with the second static contact and the third static contact. For example, the second moving contact is in a closed state with the second static contact and the third static contact. When disconnection is required, the coil passes a pulse current to move the moving iron core, thereby driving the second moving contact to disconnect from the second static contact and the third static contact. The coil does not need to be powered continuously, and the second moving contact can be continuously disconnected from the second static contact and the third static contact, effectively avoiding the waste of electric energy. When closing is required, the coil passes a reverse pulse current to move the moving iron core, thereby driving the second moving contact to connect with the second static contact and the third static contact. At the same time, the static iron core absorbs the moving iron core. The coil does not need to be powered continuously, and the second moving contact can be continuously closed with the second static contact and the third static contact, effectively avoiding the waste of electric energy. For another method: when the static iron core absorbs the moving iron core, the second moving contact is disconnected from the second static contact and the third static contact; when the static iron core disconnects the moving iron core, the second moving contact is closed with the second static contact and the third static contact. The principle is similar to the above and will not be repeated here. Therefore, the composite switch can be used for frequent on-off control of the circuit, and does not require continuous power supply to keep it connected or disconnected, effectively avoiding waste of electric energy. It does not require manual on-off control, and does not affect the service life of the composite switch. It can realize intelligent control of the composite switch and improve the degree of intelligent control of power distribution. At the same time, no other additional disconnecting devices are required, which can save space.

[0007] Further, the first driving member includes a first driving portion, a rotating shaft portion and a first connecting portion, and the first driving portion is drivingly connected to the first driving mechanism.

[0008] Furthermore, the second driving member includes a second connecting part and a second driving part, the second connecting part is drivingly connected to the bimetal strip and the first connecting part respectively, and the second driving part is drivingly connected to the disconnecting linkage mechanism, thereby the first driving mechanism can control the on and off of the first moving contact and the first static contact, and the deformation of the bimetal strip can also control the on and off of the first moving contact and the first static contact.

[0009] Optionally, the composite switch further comprises a micro switch, which is drivingly connected to the handle and connected to the circuit board. Thus, when the composite switch is opened or closed, a signal can be transmitted to the circuit board through the micro switch, thereby enabling real-time monitoring of the opening and closing status of each composite switch, which is convenient for monitoring and management by management personnel.

[0010] Furthermore, the circuit board is provided with a plug terminal. Optionally, the plug terminal may be a plug or a socket, and may be at least one of an RS485 plug terminal, an RS232 plug terminal, a USB plug terminal, an Internet port, or a ZigBee wireless module; thereby, a signal of the circuit board, the first drive mechanism, the second drive mechanism, a micro switch, or a current transformer may be output, or a control signal may be input to the circuit board, the first drive mechanism, the second drive mechanism, the micro switch, or the current transformer. The composite switch can be connected to external devices through plug-in terminals for communication, and can be connected to external devices such as processors, power distribution terminals, monitoring hosts, and host computers to achieve local or remote centralized monitoring and management of the composite switch. Current and voltage signals can be digitally analyzed by external devices, and when an abnormality occurs, the line can be cut off in real time to protect the safety of power distribution equipment and power-consuming equipment, thereby solving the problems of poor protection accuracy and incomplete protection of traditional circuit breakers, and the existence of potential safety hazards in power distribution, and achieving accurate and comprehensive protection of power distribution; various power consumption conditions can also be set according to user needs to achieve control of the on and off of the composite switch; and the intelligent control of the composite switch and the intelligent degree of power distribution control are improved.

[0011] Optionally, the circuit board is provided with a microprocessor. Thus, the current signal in the line collected by the current transformer is analyzed and processed in real time by the processor, power distribution terminal, monitoring host, host computer and other external devices or the microprocessor provided on the circuit board, and then a breaking or closing signal is output to the first drive mechanism and / or the second drive mechanism, so as to control the opening and closing of the first moving contact and the first static contact and / or the opening and closing of the second moving contact and the second static contact and the third static contact, and on the basis of retaining the traditional overload and overheat protection, the accurate and fast opening and closing of the composite switch is realized, the comprehensiveness and accuracy of the protection of the composite switch are improved, and the safety of the power distribution system is improved. For example, the microprocessor provided on the circuit board can determine the power distribution abnormality such as short-circuit current, overload current, leakage current, three-phase unbalanced current, etc. according to the current signal by comparing it with the rated value such as the rated current, so as to control the opening of the first moving contact and the first static contact and / or the opening of the second moving contact and the second static contact and the third static contact in real time by controlling the first driving mechanism and / or the second driving mechanism, so as to quickly and accurately cut off the power distribution line, thereby realizing precise protection of power distribution abnormalities such as short-circuit protection, overload protection, leakage protection, three-phase unbalanced current, etc., solving the problems of poor protection accuracy and incomplete protection of traditional circuit breakers, and the existence of potential safety hazards in power distribution, improving the comprehensiveness and accuracy of power distribution protection of the composite switch, and realizing intelligent control of the composite switch; it can also be realized through the processor, The power distribution terminal, monitoring host, host computer and other external devices determine the power distribution abnormality such as short-circuit current, overload current, leakage current, three-phase unbalanced current, etc. according to the current signal by comparing it with the rated value such as the rated current, so as to control the first drive mechanism and / or the second drive mechanism in real time through the circuit board input signal, so as to control the opening of the first moving contact and the first static contact and / or the opening of the second moving contact and the second static contact and the third static contact, and quickly and accurately cut off the power distribution line, so as to realize the precise protection of power distribution abnormality such as short-circuit protection, overload protection, leakage protection, three-phase unbalanced current, etc., solve the problems of poor protection accuracy and incomplete protection of traditional circuit breakers, and the existence of hidden dangers in power distribution safety, improve the comprehensiveness and protection accuracy of the power distribution protection of the composite switch, and realize the intelligent control of the composite switch.

[0012] Furthermore, the composite switch also includes an arc extinguishing grid and an arc striking plate.

[0013] Optionally, the composite switch further includes a clip and / or an adjusting screw.

[0014] The compound switch provided by the present invention has the following beneficial effects: it can solve the problems of poor protection accuracy and incomplete protection of traditional circuit breakers in the low-voltage power distribution system in the prior art, and the problem of hidden dangers in power distribution safety. It realizes the power distribution protection function and realizes intelligent control of the compound switch at the same time. It is suitable for frequent on-off control of the circuit and can be controlled on and off according to power demand without affecting the service life of the compound switch. It can also save space and realize local or remote centralized monitoring and management of the compound switch, which significantly improves the power distribution safety and the degree of intelligent control of power distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a composite switch provided in Embodiment 1 of the present invention.

[0016] Description of Figure Numbers:

[0017] 1. Shell; 101. First terminal; 102. Second terminal; 2. Handle; 3. Tripping connecting rod mechanism; 4. Electromagnetic tripper; 5. First moving contact; 6. First stationary contact; 7. Arc extinguishing grid; 8. Arc striking plate; 9. Bimetallic strip; 10. Current transformer; 11. First driving mechanism; 12. First driving member; 1201. First driving part; 1202. Rotating shaft; 1203. First connecting part; 13. Second driving member ; 1301, second connecting part; 1302, second driving part; 14, circuit board; 15, plug-in terminal; 16, second driving mechanism; 1601, static iron core; 1602, coil; 1603, moving iron core; 17, second static contact; 18, third static contact; 19, second moving contact; 20, first connecting piece; 21, second connecting piece; 22, third connecting piece; 23, micro switch; 24, clip; 25, adjusting screw. DETAILED DESCRIPTION

[0018] The composite switch of the present invention is described in detail below with reference to the accompanying drawings.

[0019] Embodiment 1

[0020] Figure 1 FIG. 2 shows a schematic diagram of the structure of the composite switch of the first embodiment. Figure 1As shown, a composite switch of a preferred specific embodiment of the present invention includes a housing 1, a first terminal 101, a second terminal 102, a handle 2, a tripping linkage 3, an electromagnetic release 4, a first moving contact 5, a first static contact 6 and a bimetal 9; the first moving contact 5 corresponds to the first static contact 6; the handle 2 is used to manually control the tripping linkage 3 to disconnect or close the first moving contact 5 and the first static contact 6; the tripping linkage 3 is drivingly connected to the first moving contact 5; the first moving contact 5 is electrically connected to the bimetal 9; the first static contact 6 is electrically connected to the electromagnetic release 4; and further includes a current transformer 10, a first driving mechanism 11, a first driving member 12, a second driving member 13, a second driving mechanism 16, a second static contact 17, a third static contact 18, a second moving contact 19, a first connecting member 20, a second connecting member 21, a third connecting member 22 and a circuit board 14; the current transformer 10 is sleeved on the first connecting member 20 , the second connecting member 21, and the third connecting member 22; the current transformer 10 is connected to the circuit board 14; the circuit board 14 is connected to the first driving mechanism 11 and / or the second driving mechanism 16; the first driving mechanism 11 is drivingly connected to the first driving member 12; the first driving member 12 is drivingly connected to the second driving member 13; the bimetallic strip 9 is drivingly connected to the second driving member 13; the second driving member 13 is drivingly connected to the tripping connecting rod mechanism 3; the second driving mechanism 16 is drivingly connected to the second moving contact 19; the second moving contact 19 corresponds to the second static contact 17 and the third static contact 18; the first connecting member 20 is electrically connected to the first terminal 101 and the bimetallic strip 9 respectively; the second connecting member 21 is electrically connected to the electromagnetic release 4 and the second static contact 17 respectively; the third connecting member 22 is electrically connected to the third static contact 18 and the second terminal 102 respectively.

[0021] Optionally, the first driving mechanism 11 is at least one of an electromagnetic coil, an electric push rod, a hydraulic rod, and a pneumatic rod.

[0022] Further, the second driving mechanism 16 includes a static iron core 1601, a coil 1602 and a moving iron core 1603, and the moving iron core 1603 is drivingly connected to the second moving contact 19. Optionally, when the static iron core 1601 absorbs the moving iron core 1603, the second moving contact 19 is closed with the second static contact 17 and the third static contact 18; when the static iron core 1601 disconnects the moving iron core 1603, the second moving contact 19 is disconnected with the second static contact 17 and the third static contact 18; or in another way, when the static iron core 1601 absorbs the moving iron core 1603, the second moving contact 19 is disconnected with the second static contact 17 and the third static contact 18; when the static iron core 1601 disconnects the moving iron core 1603, the second moving contact 19 is closed with the second static contact 17 and the third static contact 18. For example, the second moving contact 19 is in a closed state with the second static contact 17 and the third static contact 18. When disconnection is required, the coil 1602 passes a pulse current to move the moving iron core 1603, thereby driving the second moving contact 19 to be disconnected from the second static contact 17 and the third static contact 18. There is no need to provide uninterrupted power supply to the coil, and the second moving contact 19 can be continuously disconnected from the second static contact 17 and the third static contact 18, effectively avoiding the waste of electric energy; when closing is required, the coil 1602 passes a reverse pulse current to move the moving iron core 1603, thereby driving the second moving contact 19 to be connected with the second static contact 17 and the third static contact 18. At the same time, the static iron core 1601 absorbs the moving iron core 1603. There is no need to provide uninterrupted power supply to the coil 1602, and the second moving contact 19 can be continuously closed with the second static contact 17 and the third static contact 18, effectively avoiding the waste of electric energy. For another method: when the static iron core 1601 absorbs the moving iron core 1603, the second moving contact 19 is disconnected from the second static contact 17 and the third static contact 18; when the static iron core 1601 disconnects the moving iron core 1603, the second moving contact 19 is closed with the second static contact 17 and the third static contact 18. The principle is similar to the above and will not be repeated here. Therefore, this composite switch can be used for frequent on-off control of the circuit, and does not require continuous power supply to keep it connected or disconnected, effectively avoiding the waste of electric energy, and does not require manual on-off control, and does not affect the service life of the composite switch. It can realize intelligent control of the composite switch and improve the degree of intelligent control of power distribution. At the same time, no other additional disconnecting devices are required, which can save space.

[0023] Furthermore, the first driving member 12 includes a first driving portion 1201 , a rotating shaft portion 1202 and a first connecting portion 1203 , and the first driving portion 1201 is drivingly connected to the first driving mechanism 11 .

[0024] Furthermore, the second driving member 13 includes a second connecting part 1301 and a second driving part 1302, and the second connecting part 1301 is drivingly connected to the bimetal strip 9 and the first connecting part 1203 respectively, and the second driving part 1302 is drivingly connected to the disconnecting linkage mechanism 3, thereby the first driving mechanism 11 can control the connection and disconnection of the first moving contact 5 and the first static contact 6, and the connection and disconnection of the first moving contact 5 and the first static contact 6 can also be controlled by the deformation of the bimetal strip 9.

[0025] Optionally, the composite switch further includes a micro switch 23, which is drivingly connected to the handle 2, and the micro switch 23 is connected to the circuit board 14. Thus, when the composite switch is opened or closed, a signal can be transmitted to the circuit board through the micro switch, thereby monitoring the opening and closing status of each composite switch in real time, which is convenient for monitoring and management by management personnel.

[0026] Further, the circuit board 14 is provided with a plug terminal 15. Optionally, the plug terminal may be a plug or a socket, and may be at least one of an R8485 plug terminal, an R8232 plug terminal, a USB plug terminal, an Internet port, or a ZigBee wireless module; thereby, a signal of the circuit board 14, the first drive mechanism 11, the second drive mechanism 16, the micro switch 23, or the current transformer 10 may be output, or a control signal may be input to the circuit board 14, the first drive mechanism 11, the second drive mechanism 16, the micro switch 23, or the current transformer 10. The composite switch can be connected to external devices through the plug-in terminal 15 for communication, and can be connected to external devices such as processors, power distribution terminals, monitoring hosts, and host computers to achieve local or remote centralized monitoring and management of the composite switch. The current and voltage signals are digitally analyzed by external devices, and when an abnormality occurs, the line can be cut off in real time to protect the safety of power distribution equipment and power-consuming equipment, thereby solving the problems of poor protection accuracy and incomplete protection of traditional circuit breakers, and the existence of potential safety hazards in power distribution, and achieving accurate and comprehensive protection of power distribution; various power consumption conditions can also be set according to user needs to achieve control of the on and off of the composite switch; and the intelligent control of the composite switch and the intelligent control of power distribution are improved.

[0027] Optionally, the circuit board 14 is provided with a microprocessor. Thus, the current signal in the line collected by the current transformer is analyzed and processed in real time by the processor, power distribution terminal, monitoring host, host computer and other external devices or the microprocessor provided on the circuit board, and then a breaking or closing signal is output to the first drive mechanism and / or the second drive mechanism, thereby controlling the opening and closing of the first moving contact 5 and the first static contact 6 and / or the opening and closing of the second moving contact 19 and the second static contact 17 and the third static contact 18, and on the basis of retaining the traditional overload and overheat protection, the accurate and fast opening and closing of the composite switch is realized, the comprehensiveness and accuracy of the protection of the composite switch are improved, and the safety of the power distribution system is improved. For example, the microprocessor provided on the circuit board can determine the power distribution abnormality such as short-circuit current, overload current, leakage current, three-phase unbalanced current, etc. according to the current signal by comparing it with the rated value such as the rated current, so as to control the opening of the first moving contact 5 and the first static contact 6 and / or the opening of the second moving contact 19 and the second static contact 17 and the third static contact 18 in real time by controlling the first drive mechanism and / or the second drive mechanism, so as to quickly and accurately cut off the power distribution line, thereby realizing precise protection of power distribution abnormalities such as short-circuit protection, overload protection, leakage protection, three-phase unbalanced current, etc., solving the problems of poor protection accuracy and incomplete protection of traditional circuit breakers, and the existence of potential safety hazards in power distribution, improving the comprehensiveness and accuracy of power distribution protection of the composite switch, and realizing intelligent control of the composite switch; it can also be realized through the processor, The power distribution terminal, monitoring host, host computer and other external devices determine the power distribution abnormality such as short-circuit current, overload current, leakage current, three-phase unbalanced current, etc. according to the current signal by comparing it with the rated value such as the rated current, so as to control the first drive mechanism and / or the second drive mechanism in real time through the circuit board input signal, so as to control the opening of the first moving contact 5 and the first static contact 6 and / or the opening of the second moving contact 19 and the second static contact 17 and the third static contact 18, and quickly and accurately cut off the power distribution line, so as to realize the precise protection of power distribution abnormality such as short-circuit protection, overload protection, leakage protection, three-phase unbalanced current, etc., solve the problems of poor protection accuracy and incomplete protection of traditional circuit breakers, and the existence of hidden dangers in power distribution safety, improve the comprehensiveness and protection accuracy of the power distribution protection of the composite switch, and realize the intelligent control of the composite switch.

[0028] Optionally, the microprocessor may be a MC68HC908AP32 chip, and the circuit board may be a PCB board.

[0029] Furthermore, the composite switch further includes an arc extinguishing grid 7 and an arc striking plate 8 .

[0030] Optionally, the composite switch further includes a clip 24 and / or an adjusting screw 25 .

[0031] The composite switch provided by the present invention can solve the problems of poor protection accuracy and incomplete protection of traditional circuit breakers in the low-voltage power distribution system of the prior art, and the existence of potential safety hazards in power distribution. It realizes the power distribution protection function and realizes intelligent control of the composite switch at the same time. It is suitable for frequent on-off control of circuits and can be controlled on and off according to power demand without affecting the service life of the composite switch. It can also save space and realize local or remote centralized monitoring and management of the composite switch, which significantly improves the power distribution safety and the degree of intelligent control of power distribution.

[0032] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A composite switch, comprising a housing (1), a first terminal (101), a second terminal (102), a handle (2), a tripping link mechanism (3), an electromagnetic release (4), a first moving contact (5), a first static contact (6) and a bimetallic strip (9); the first moving contact (5) corresponds to the first static contact (6); the tripping link mechanism (3) is drivingly connected to the first moving contact (5); the first moving contact (5) is electrically connected to the bimetallic strip (9); the first static contact (6) is electrically connected to the electromagnetic release (4); characterized in that: The invention also comprises a current transformer (10), a first driving mechanism (11), a first driving member (12), a second driving member (13), a second driving mechanism (16), a second static contact (17), a third static contact (18), a second moving contact (19), a first connecting member (20), a second connecting member (21), a third connecting member (22) and a circuit board (14); the current transformer (10) is sleeved on at least one of the first connecting member (20), the second connecting member (21) and the third connecting member (22); the current transformer (10) is connected to the circuit board (14); the circuit board (14) is connected to the first driving mechanism (11) and / or the second driving mechanism (16); the first driving mechanism (11) is drivingly connected to the first driving member (12); the first driving member (12) is drivingly connected to the second driving member (13); the bimetallic strip (9) is connected to the first connecting member (20), the second connecting member (21) and the third connecting member (22); The second driving member (13) is drivingly connected to the tripping connecting rod mechanism (3); the second driving member (13) is drivingly connected to the second moving contact (19); the second moving contact (19) corresponds to the second static contact (17) and the third static contact (18); the first connecting member (20) is electrically connected to the first terminal (101) and the bimetallic strip (9) respectively; the second connecting member (21) is electrically connected to the electromagnetic release (4) and the second static contact (17) respectively; the third connecting member (22) is electrically connected to the third static contact (18) and the second terminal (102) respectively; the second driving mechanism (16) comprises a static iron core (1601), a coil (1602) and a moving iron core (1603); the moving iron core (1603) is drivingly connected to the second moving contact (19); The circuit board (14) is provided with a microprocessor, and the microprocessor outputs a breaking or closing signal to the first drive mechanism (11) and / or the second drive mechanism (16), so as to control the opening and closing of the first moving contact (5) and the first stationary contact (6) and / or the opening and closing of the second moving contact (19) and the second stationary contact (17) and the third stationary contact (18).

2. The composite switch according to claim 1, characterized in that: The first driving mechanism (11) is at least one of an electromagnetic coil, an electric push rod, a hydraulic rod, and a pneumatic rod.

3. The composite switch according to claim 1, characterized in that: The first driving member (12) comprises a first driving portion (1201), a rotating shaft portion (1202) and a first connecting portion (1203), and the first driving portion (1201) is drivingly connected to the first driving mechanism (11).

4. The composite switch according to claim 3, characterized in that: The second driving member (13) comprises a second connecting portion (1301) and a second driving portion (1302), wherein the second connecting portion (1301) is drivingly connected to the bimetallic strip (9) and the first connecting portion (1203) respectively, and the second driving portion (1302) is drivingly connected to the tripping linkage mechanism (3).

5. The composite switch according to claim 1, characterized in that: It also comprises a micro switch (23), wherein the micro switch (23) is drivingly connected to the handle (2), and the micro switch (23) is connected to the circuit board (14).

6. The composite switch according to claim 1, characterized in that: The circuit board (14) is provided with a plug-in terminal (15).

7. The composite switch according to claim 1, characterized in that: It also includes an arc extinguishing grid (7) and an arc striking plate (8).

8. The composite switch according to claim 1, characterized in that: It also includes a clip (24) and / or an adjustment screw (25).

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