Power taking mechanism and circuit breaker

Abstract

The utility model relates to the technical field of low-voltage electric appliances, in particular to a power taking mechanism and a circuit breaker. The circuit breaker comprises a first terminal, a second terminal and a control system. The power taking mechanism comprises a power connection structure and a power supply structure, and the power connection structure is used for being electrically connected with the first wiring end and the second wiring end; the power supply structure is used for being electrically connected with the control system and can make contact with or be separated from the power connection structure. When the circuit breaker works, the power supply structure is controlled to be in contact with the power connection structure, and at the moment, the control system takes power from the first wiring end or the second wiring end of the circuit breaker through the power supply structure and the power connection structure; when the circuit breaker is disconnected, the control system is disconnected with the strong current, so that the risk of burning loss of the control system is avoided; when the circuit breaker needs to be subjected to withstand voltage debugging, the power supply structure is controlled to be separated from the power connection structure, so that the circuit breaker product can be directly subjected to withstand voltage debugging.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a power-taking mechanism and a circuit breaker. Background Art

[0002] The circuit breaker includes a control system and two wiring terminals for connecting the circuit breaker to the circuit. The above two wiring terminals are respectively named the first wiring terminal and the second wiring terminal; due to different installation methods of the circuit breaker, some circuit breakers are powered by the first wiring terminal and connect the load by the second wiring terminal, while some circuit breakers are powered by the second wiring terminal and connect the load by the first wiring terminal.

[0003] At present, the control system of the circuit breaker either takes power from the first wiring terminal or takes power from the second wiring terminal, and its power-taking method is single. Moreover, when the circuit breaker is powered by the first wiring terminal and the control system takes power from the first wiring terminal, or when the circuit breaker is powered by the second wiring terminal and the control system takes power from the second wiring terminal, after the circuit breaker is disconnected, the circuit board of the control system is still connected to the strong electricity for a long time, resulting in a greater risk of burning damage to the control system. In addition, since the control system is still electrically connected to the first wiring terminal or the second wiring terminal after the circuit breaker is disconnected, the circuit breaker product cannot directly perform withstand voltage debugging. Summary of the Utility Model

[0004] The first object of the utility model is to provide a power-taking mechanism to solve the technical problems existing in the prior art, such as the single power-taking method of the control system, the easy burning damage of the control system, and the inability of the circuit breaker to directly perform withstand voltage debugging.

[0005] In order to achieve the above object, the utility model adopts the following technical solutions:

[0006] A power-taking mechanism is applied to a circuit breaker. The circuit breaker includes a first wiring terminal, a second wiring terminal, and a control system. The power-taking mechanism includes a power-receiving structure and a power-supplying structure, wherein:

[0007] The power-receiving structure is used for electrically connecting with the first wiring terminal and the second wiring terminal; the power-supplying structure is used for electrically connecting with the control system, and the power-supplying structure can contact or separate from the power-receiving structure.

[0008] Further, the power-receiving structure includes a first power-receiving component and a second power-receiving component, wherein:

[0009] The first power-receiving component is used for electrically connecting with the second wiring terminal; the second power-receiving component is used for electrically connecting with the first wiring terminal; the power-supplying structure can respectively contact or separate from the first power-receiving component and the second power-receiving component.

[0010] Further, the power supply structure has a first state, a second state, and a third state, where:

[0011] When the power supply structure is in the first state, the power supply structure is in contact with the first power connection component; when the power supply structure is in the second state, the power supply structure is in contact with the second power connection component; when the power supply structure is in the third state, the power supply structure is separated from the first power connection component and the second power connection component respectively.

[0012] Further, a housing is further included, and part of the power connection structure and part of the power supply structure are arranged inside the housing, and the power input interface of the power connection structure and the power output interface of the power supply structure respectively penetrate out of the housing;

[0013] The power input interface includes a first power input interface arranged on the first power connection component and a second power input interface arranged on the second power connection component.

[0014] Further, the first power connection component includes a first conductive plate and a first wire, where: the first conductive plate can be in contact with or separated from the power supply structure; one end of the first wire is connected to the first conductive plate, and the other end thereof is provided with the first power input interface;

[0015] And / or, the second power connection component includes a second conductive plate and a second wire, where: the second conductive plate can be in contact with or separated from the power supply structure; one end of the second wire is connected to the second conductive plate, and the other end thereof is provided with the second power input interface.

[0016] Further, the power supply structure includes a third conductive plate, a sliding component, and a third wire, where:

[0017] The third conductive plate is arranged between the first conductive plate and the second conductive plate; the sliding component is used to drive the third conductive plate to move between the first conductive plate and the second conductive plate; one end of the third wire is connected to the third conductive plate, and the other end thereof is provided with the power output interface.

[0018] Further, the sliding component includes a push handle, one end of the push handle is connected to the third conductive plate, and the other end thereof penetrates out of the housing;

[0019] And / or, the sliding component includes a sliding table, the sliding table is slidably installed on the housing, and the third conductive plate is fixedly arranged on the sliding table.

[0020] Further, the third conductive plate is U-shaped, and includes a first contact portion, a second contact portion, and a connecting portion connecting the first contact portion and the second contact portion, where:

[0021] The first contact part is disposed opposite to the first conductive plate; the second contact part is disposed opposite to the second conductive plate; the connecting part is fixedly arranged on the sliding component.

[0022] Further, it further includes a gear position identifier for distinguishing the first state, the second state, and the third state.

[0023] The second object of the present invention is to provide a circuit breaker, including a first terminal, a second terminal, a control system, and one or more power-taking mechanisms as described in any one of the above.

[0024] The beneficial effects of the present invention:

[0025] The present invention provides a power-taking mechanism and a circuit breaker. The circuit breaker includes a first terminal, a second terminal, and a control system; the power-taking mechanism includes a power connection structure and a power supply structure, wherein: the power connection structure is used for electrically connecting with the first terminal and the second terminal; the power supply structure is used for electrically connecting with the control system, and the power supply structure can contact or separate from the power connection structure.

[0026] When the circuit breaker is powered from the first terminal, the control system can be electrically connected to the second terminal of the circuit breaker through the power supply structure and the power connection structure; when the circuit breaker is powered from the second terminal, the control system can be electrically connected to the first terminal of the circuit breaker through the power supply structure and the power connection structure; therefore, the power-taking mechanism provided in this embodiment can enable the control system to perform two-way power taking. When the circuit breaker is disconnected, the connection between the control system and the high voltage is disconnected, thereby avoiding the risk of burning out the control system; when the circuit breaker product is subjected to withstand voltage debugging, the control power supply structure can be separated from the power connection structure, so that the circuit breaker product can directly perform withstand voltage debugging. Description of the Drawings

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a front view schematic diagram of the power-taking mechanism provided in the embodiment of the present invention when the power supply structure is in the first state;

[0029] Figure 2 It is a front view schematic diagram of the power-taking mechanism provided in the embodiment of the present invention when the power supply structure is in the second state;

[0030] Figure 3The front view schematic diagram of the power-taking mechanism provided by the embodiment of the present utility model when the power supply structure is in the third state;

[0031] Figure 4 The front view schematic diagram of the housing provided by the embodiment of the present utility model;

[0032] Figure 5 The top view schematic diagram of the power-taking mechanism provided by the embodiment of the present utility model;

[0033] Figure 6 The top view schematic diagram of the power-taking mechanisms provided by the embodiment of the present utility model when multiple of them are used in cooperation.

[0034] Icon:

[0035] 1 - Power connection structure; 11 - First power connection component; 111 - First power input interface; 112 - First conductive plate; 113 - First wire; 12 - Second power connection component; 121 - Second power input interface; 122 - Second conductive plate; 123 - Second wire;

[0036] 2 - Power supply structure; 21 - Power output interface; 22 - Third conductive plate; 221 - First contact bump; 222 - Second contact bump; 23 - Sliding component; 231 - Push handle; 232 - Slide table; 2321 - Identification structure; 24 - Third wire;

[0037] 3 - Housing; 31 - First through hole; 32 - Second through hole; 33 - Third through hole; 34 - Clamping structure; 341 - First rib; 342 - Second rib; 35 - Push handle through hole; 36 - Chute; 37 - Identification hole;

[0038] 4 - Linkage structure;

[0039] 100 - First wiring terminal; 200 - Second wiring terminal; 300 - Control system. Detailed implementation manners

[0040] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0041] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0042] It should be noted that in the description of the present utility model, the terms "connection" and "installation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or connected through an intermediate medium; it can be a mechanical connection or an electrical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] On the one hand, the present utility model provides a power-taking mechanism applied to a circuit breaker. The circuit breaker includes a first connection terminal 100, a second connection terminal 200, and a control system 300. The circuit breaker is connected to the circuit through the first connection terminal 100 and the second connection terminal 200; referring to Figure 1 and Figure 2 , the power-taking mechanism includes a power connection structure 1 and a power supply structure 2, where:

[0044] The power connection structure 1 is used for electrically connecting with the first connection terminal 100 and the second connection terminal 200; the power supply structure 2 is used for electrically connecting with the control system 300, and the power supply structure 2 can contact or separate from the power connection structure 1.

[0045] It should be noted that the power connection structure 1 can be electrically connected only to the first connection terminal 100, or only to the second connection terminal 200, or can be electrically connected to both the first connection terminal 100 and the second connection terminal 200 respectively.

[0046] Taking the embodiment where the power connection structure 1 is only electrically connected to the first connection terminal 100 as an example, the power-taking principle of the control system 300 is as follows:

[0047] When the circuit breaker is working, control the power supply structure 2 to contact the power connection structure 1. Thus, the control system 300 is electrically connected to the first connection terminal 100 of the circuit breaker through the power supply structure 2 and the power connection structure 1. At this time, the control system 300 takes power from the first connection terminal 100;

[0048] After the circuit breaker is disconnected, the control power supply structure 2 is separated from the power connection structure 1. At this time, regardless of whether the circuit breaker is powered from the first terminal 100 or the second terminal 200, the connection between the control system 300 and the high voltage is in a disconnected state, thus avoiding the risk of burning out the control system 300 and enabling the circuit breaker product to directly perform withstand voltage debugging.

[0049] The working principle of the embodiment in which the power connection structure 1 is only electrically connected to the second terminal 200 is the same as described above and will not be elaborated here.

[0050] It should also be noted that for the embodiment in which the power connection structure 1 is electrically connected to the first terminal 100 and the second terminal 200 respectively, the power supply structure 2 can be selectively electrically connected to the first terminal 100 and the second terminal 200. Exemplarily, when the circuit breaker is powered from the first terminal 100, the control system 300 can be electrically connected to the second terminal 200 of the circuit breaker through the power supply structure 2 and the power connection structure 1; when the circuit breaker is powered from the second terminal 200, the control system 300 can be electrically connected to the first terminal 100 of the circuit breaker through the power supply structure 2 and the power connection structure 1; thus, after the circuit breaker is disconnected, even if the power supply structure 2 and the power connection structure 1 are not controlled to be separated, the control system 300 can be disconnected from the high voltage, so that there is no need for personnel to manually disconnect the connection between the control system 300 and the high voltage, further avoiding the risk of burning out the control system 300.

[0051] In summary, the power taking mechanism can enable the control system 300 to take power bidirectionally. At the same time, the power taking mechanism can disconnect the connection between the control system 300 and the high voltage after the circuit breaker is disconnected, thus avoiding the risk of burning out the control system 300; in addition, the power taking mechanism can also disconnect the connections between the control system 300 and the first terminal 100 and the second terminal 200, enabling the circuit breaker to directly perform withstand voltage debugging.

[0052] Further, the power connection structure 1 includes a first power connection component 11 and a second power connection component 12, where:

[0053] The first power connection component 11 is used to be electrically connected to the second terminal 200; the second power connection component 12 is used to be electrically connected to the first terminal 100; the power supply structure 2 can be in contact with or separated from the first power connection component 11 and the second power connection component 12 respectively.

[0054] Refer to Figure 1, when the circuit breaker is closed and powered from the first terminal 100, control the power supply structure 2 to contact the first power connection component 11. At this time, the control system 300, the power supply structure 2, the first power connection component 11, and the second terminal 200 are connected in sequence, and the control system 300 can obtain power from the second terminal 200; since the circuit breaker is powered from the first terminal 100 and the control system 300 obtains power from the second terminal 200, when the circuit breaker is disconnected, the connection between the control system 300 and the high voltage is also disconnected.

[0055] Refer to Figure 2 , when the circuit breaker is closed and powered from the second terminal 200, control the power supply structure 2 to contact the second power connection component 12. At this time, the control system 300, the power supply structure 2, the second power connection component 12, and the first terminal 100 are connected in sequence, and the control system 300 can obtain power from the first terminal 100; similarly, when the circuit breaker is disconnected, the connection between the control system 300 and the high voltage is also disconnected.

[0056] Refer to Figure 3 , when the circuit breaker is performing a withstand voltage test, control the power supply structure 2 to separate from both the first power connection component 11 and the second power connection component 12. At this time, the connections between the control system 300 and the first terminal 100 and the second terminal 200 are both disconnected, so it will not affect the debugging of the circuit breaker.

[0057] Based on the above structure, the power supply structure 2 has a first state, a second state, and a third state, where:

[0058] When the power supply structure 2 is in the first state (i.e., the state shown in Figure 1 ), the power supply structure 2 contacts the first power connection component 11; at this time, the control system 300 is electrically connected to the second terminal 200;

[0059] When the power supply structure 2 is in the second state (i.e., the state shown in Figure 2 ), the power supply structure 2 contacts the second power connection component 12; at this time, the control system 300 is electrically connected to the first terminal 100;

[0060] When the power supply structure 2 is in the third state (i.e., the state shown in Figure 3 ), the power supply structure 2 separates from both the first power connection component 11 and the second power connection component 12; at this time, the connections between the control system 300 and the first terminal 100 and the second terminal 200 are both disconnected.

[0061] It should be noted that when the circuit breaker is powered from the first terminal 100 and the power supply structure 2 is in the first state of being electrically connected to the second terminal 200, after the circuit breaker is disconnected, since the connection between the first terminal 100 and the second terminal 200 is disconnected, the second terminal 200 is in a non-powered state. Therefore, the connection between the control system 300 and the high voltage is also disconnected. Similarly, when the circuit breaker is powered from the second terminal 200 and the power supply structure 2 is in the second state, after the circuit breaker is disconnected, the connection between the control system 300 and the high voltage is also disconnected.

[0062] It should also be noted that when the power supply structure 2 is in the third state, the connections between the control system 300 and the first terminal 100 and the second terminal 200 are both disconnected. Therefore, the circuit breaker can directly perform withstand voltage debugging without affecting the control system 300.

[0063] When the above power taking mechanism is in use, the user can control the power supply structure 2 to be in different states according to the incoming line installation method of the circuit breaker and the opening and closing state of the circuit breaker, so that the control system 300 can be powered on when the circuit breaker is working and powered off after the circuit breaker is disconnected.

[0064] Continue to refer to Figure 3 , the power taking mechanism further includes a housing 3. Part of the power connection structure 1 and part of the power supply structure 2 are arranged inside the housing 3. The power input interface of the power connection structure 1 and the power output interface 21 of the power supply structure 2 respectively pass through the housing 3.

[0065] The power input interface includes a first power input interface 111 arranged on the first power connection component 11 and a second power input interface 121 arranged on the second power connection component 12.

[0066] In the above structure, the power output interface 21 is used to connect to the control system 300, the first power input interface 111 is used to connect to the second terminal 200, and the second power input interface 121 is used to connect to the first terminal 100. The connection methods of the above interfaces can be plugging, screwing, welding, sliding, etc., and are not limited here.

[0067] On the basis of the above structure, the first power connection component 11 includes a first conductive plate 112 and a first wire 113, where: the first conductive plate 112 can contact or separate from the power supply structure 2; one end of the first wire 113 is connected to the first conductive plate 112, and the other end is provided with the first power input interface 111;

[0068] And / or, the second power connection component 12 includes a second conductive plate 122 and a second wire 123, where: the second conductive plate 122 can contact or separate from the power supply structure 2; one end of the second wire 123 is connected to the second conductive plate 122, and the other end is provided with the second power input interface 121.

[0069] Refer toFigure 3 and Figure 4 The first conductive plate 112 is L-shaped and includes a connected first vertical portion and a first horizontal portion, where: the first vertical portion can be in contact with or separated from the power supply structure 2, and the first horizontal portion extends from the first vertical portion towards the first side wall of the housing 3; one end of the first wire 113 is connected to the first horizontal portion, and the other end of the first wire 113 passes through the first through hole 31 on the first side wall and is provided with a first power supply interface 111. The second conductive plate 122 is L-shaped and includes a connected second vertical portion and a second horizontal portion, where: the second vertical portion can be in contact with or separated from the power supply structure 2, and the second horizontal portion extends from the second vertical portion towards the second side wall of the housing 3; one end of the second wire 123 is connected to the second horizontal portion, and the other end of the second wire 123 passes through the second through hole 32 on the second side wall and is provided with a second power supply interface 121.

[0070] In this embodiment, the first conductive plate 112 and the second conductive plate 122 are symmetrically arranged on both sides of the power supply structure 2; the first side wall and the second side wall are respectively located at opposite ends of the housing 3 along the length direction. When the power supply structure 2 is in the third state, the power supply structure 2 is in the middle position between the first power connection assembly 11 and the second power connection assembly 12.

[0071] Referring to Figure 4 on the inner wall surface of the housing 3 connecting the first side wall and the second side wall, two clamping structures 34 are provided, and the first conductive plate 112 and the second conductive plate 122 are respectively clamped to the two clamping structures 34.

[0072] Taking the structure of one of the clamping structures 34 and the first conductive plate 112 as an example: the clamping structure 34 includes a first rib 341 and a second rib 342, and the first conductive plate 112 is clamped between the first boss 341 and the second rib 342. The displacement of the first conductive plate 112 relative to the housing 3 can be restricted by the first rib 341 and the second rib 342, so as to prevent the first conductive plate 112 from shaking or shifting, making the connection of the circuit more stable and reliable.

[0073] Continuing to refer to Figure 3 the power supply structure 2 includes a third conductive plate 22, a sliding component 23 and a third wire 24, where:

[0074] The third conductive plate 22 is arranged between the first conductive plate 112 and the second conductive plate 122; the sliding component 23 is used to drive the third conductive plate 22 to move between the first conductive plate 112 and the second conductive plate 122; one end of the third wire 24 is connected to the third conductive plate 22, and the other end is provided with a power output interface 21.

[0075] Specifically, the third conductive plate 22 is U-shaped and includes a first contact portion, a second contact portion, and a connecting portion connecting the first contact portion and the second contact portion, where: the first contact portion is disposed opposite to the first conductive plate 112, and a first contact bump 221 is provided on the end surface of the first contact portion close to the first conductive plate 112; the second contact portion is disposed opposite to the second conductive plate 122, and a second contact bump 222 is provided on the end surface of the second contact portion close to the second conductive plate 122; the connecting portion is fixedly provided on the sliding assembly 23. When the sliding assembly 23 slides relative to the housing 3, the sliding assembly 23 drives the third conductive plate 22 to move between the first conductive plate 112 and the second conductive plate 122, so that the third conductive plate 22 can selectively contact or separate from the first conductive plate 112 and the second conductive plate 122.

[0076] Combined with Figure 4 , one end of the third wire 24 is connected to the connecting portion of the third conductive plate 22, and the other end of the third wire 24 passes through the third through hole 33 on the housing 3 and is provided with a power output interface 21.

[0077] Optionally, the first wire 113, the second wire 123, and the third wire 24 are respectively rigid wires or flexible wires.

[0078] Continuing to refer to Figure 3 , the sliding assembly 23 includes a push handle 231, one end of the push handle 231 is connected to the third conductive plate 22, and the other end thereof passes through the housing 3;

[0079] And / or, the sliding assembly 23 includes a sliding table 232, the sliding table 232 is slidably installed on the housing 3, and the third conductive plate 22 is fixedly provided on the sliding table 232.

[0080] Referring to Figure 3 and Figure 4 , in this embodiment, the sliding assembly 23 includes a push handle 231 and a sliding table 232, where: a sliding groove 36 is provided on the inner wall surface of the housing 3, and the sliding table 232 is slidably engaged with the sliding groove 36; the connecting portion of the third conductive plate 22 is fixedly installed on the sliding table 232; one end of the push handle 231 is fixedly connected to the sliding table 232, and the other end of the push handle 231 passes through the push handle through hole 35 on the housing 3. When in use, the user can control the power supply structure 2 to switch between three states by pushing the end of the push handle 231 passing through the housing 3.

[0081] Referring to Figure 5 , the power taking mechanism further includes a gear position identifier for distinguishing the first state, the second state, and the third state.

[0082] As an alternative embodiment, the gear position identifier includes three identification holes 37 provided on the housing 3, and the three identification holes 37 respectively correspond to the above-mentioned first state, second state, and third state; an identification structure 2321 is provided on the sliding table 232, and the identification structure 2321 can correspond to the position of any one of the identification holes 37. When the identification structure 2321 moves to correspond to the position of one of the identification holes 37, it indicates that the power supply structure 2 is in the state corresponding to the identification hole 37. Corresponding state prompt texts can be provided at the three identification holes 37.

[0083] Exemplarily, when the identification structure 2321 moves to correspond to the position of the leftmost identification hole 37, it indicates that the power supply structure 2 is in the first state of contacting the first power connection component 11; when the identification structure 2321 moves to correspond to the position of the middle identification hole 37, it indicates that the power supply structure 2 is in the third state of being separated from the first power connection component 11 and the second power connection component 12 respectively.

[0084] Optionally, the identification structure 2321 is a protrusion and / or a color mark; the identification structure 2321 only needs to be able to intuitively reflect the position of the sliding table 232 relative to the housing 3, and its specific shape or color is not limited.

[0085] In other embodiments, the gear position identifier can be a status mark provided on the housing 3 and on one side of the push handle 231. Alternatively, the gear position identifier can be three indicator lights, and the three indicator lights correspond one-to-one to the three states of the power supply structure 2, and each indicator light only lights up when the power supply structure 2 is in the corresponding state.

[0086] Another embodiment of the present application provides a circuit breaker, which includes a first wiring terminal 100, a second wiring terminal 200, a control system 300, and the power taking mechanism described in any of the above embodiments. This circuit breaker at least has all the technical effects of the above power taking mechanism, which will not be elaborated here.

[0087] In this embodiment, the power connection structure 1 includes a first power connection component 11 for electrically connecting to the second wiring terminal 200 and a second power connection component 12 for electrically connecting to the first wiring terminal 100; the power supply structure 2 has a first state of contacting the first power connection component 11, a second state of contacting the second power connection component 12, and a third state of being separated from the first power connection component 11 and the second power connection component 12 respectively.

[0088] The power taking principle of the control system 300 provided in this embodiment is as follows:

[0089] Refer to Figure 1, for the installation occasion where the circuit breaker is powered in from the first terminal 100, when the circuit breaker is working, the control power supply structure 2 is in the first state. At this time, the control system 300, the power supply structure 2, the first power connection component 11 and the second terminal 200 are connected in sequence, and the control system 300 can obtain power from the second terminal 200;

[0090] Refer to Figure 2 , for the installation occasion where the circuit breaker is powered in from the second terminal 200, when the circuit breaker is working, the control power supply structure 2 is in the second state. At this time, the control system 300, the power supply structure 2, the second power connection component 12 and the first terminal 100 are connected in sequence, and the control system 300 can obtain power from the first terminal 100.

[0091] Adopting the above power-taking method, when the circuit breaker is disconnected, whether the power connection structure 1 and the power supply structure 2 are in contact or separated, the connection between the control system 300 and the high voltage is disconnected, thus avoiding the risk of burning out the control system 300.

[0092] Refer to Figure 3 , when the circuit breaker is subjected to withstand voltage debugging, the control power supply structure 2 is in the third state. At this time, the connections between the control system 300 and the first terminal 100 and the second terminal 200 are both disconnected, so the circuit breaker can directly perform withstand voltage debugging.

[0093] According to different models of the circuit breaker, the first terminal 100 and the second terminal 200 of the circuit breaker may respectively include one or more terminal blocks. Correspondingly, the circuit breaker also includes one or more power-taking mechanisms.

[0094] Refer to Figure 6 , when the first terminal 100 and the second terminal 200 of the circuit breaker respectively include multiple terminal blocks, the first terminal 100 includes at least two first terminal blocks, and the second terminal 200 includes at least two second terminal blocks; correspondingly, the circuit breaker also includes multiple power-taking mechanisms, and there is a power-taking mechanism connected between any corresponding first terminal block and second terminal block.

[0095] Specifically, among multiple power-taking mechanisms (specifically two power-taking mechanisms in the figure), any two adjacent housings 3 can be snap-fitted, so that multiple power-taking mechanisms are combined into a whole; multiple push handles 231 are connected through a linkage structure 4 (which can be a handle sleeve), so that multiple push handles 231 can act synchronously.

[0096] To ensure that the third conductive plates 22 of multiple power-taking mechanisms can be reliably in contact with the corresponding first conductive plates 112 or second conductive plates 122, sufficient overtravel can be provided when the contact bumps on the third conductive plates 22 come into contact with the first conductive plates 112 or second conductive plates 122. At this time, a marking structure 2321 is provided on the slide table 232. The marking structure 2321 is a protrusion or a colored protrusion. When the marking structure 2321 moves to a position corresponding to one of the marking holes 37, the protrusion is clamped in the marking hole to achieve the positioning of the slide table 232.

[0097] Of course, U-shaped fingers can also be provided on the first conductive plates 112 or second conductive plates 122 and I-shaped contacts can be provided on the third conductive plates 22 (or I-shaped contacts can be provided on the first conductive plates 112 or second conductive plates 122 and U-shaped fingers can be provided on the third conductive plates 22) to ensure that the third conductive plates 22 of multiple power-taking mechanisms can be reliably in contact with the corresponding first conductive plates 112 or second conductive plates 122 through the clamping of the U-shaped fingers and I-shaped contacts. At this time, a marking structure 2321 is provided on the slide table 232. The marking structure 2321 is a protrusion and / or a color mark. When the marking structure 2321 moves to a position corresponding to one of the marking holes 37, the protrusion is clamped in the marking hole to achieve a tactile prompt for the positioning of the slide table 232, or the color in the marking hole achieves a visual prompt for the positioning of the slide table 232, or the colored protrusion in the marking hole achieves a dual tactile and visual prompt for the positioning of the slide table 232.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power supply mechanism, applied to a circuit breaker, the circuit breaker comprising a first connection terminal (100), a second connection terminal (200) and a control system (300), characterized in that: The power supply mechanism comprises a power connection structure (1) and a power supply structure (2), wherein: The power connection structure (1) is used to be electrically connected to the first wiring terminal (100) and the second wiring terminal (200); the power supply structure (2) is used to be electrically connected to the control system (300), and the power supply structure (2) can be in contact with or separated from the power connection structure (1).

2. The power taking mechanism according to claim 1, characterized in that: The power connection structure (1) comprises a first power connection component (11) and a second power connection component (12), wherein: The first power connection component (11) is used to be electrically connected to the second terminal (200); the second power connection component (12) is used to be electrically connected to the first terminal (100); and the power supply structure (2) can be in contact with or separated from the first power connection component (11) and the second power connection component (12), respectively.

3. The power taking mechanism according to claim 2, characterized in that: The power supply structure (2) has a first state, a second state and a third state, wherein: When the power supply structure (2) is in a first state, the power supply structure (2) is in contact with the first power connection component (11); when the power supply structure (2) is in a second state, the power supply structure (2) is in contact with the second power connection component (12); when the power supply structure (2) is in a third state, the power supply structure (2) is separated from the first power connection component (11) and the second power connection component (12), respectively.

4. The power taking mechanism according to claim 2, characterized in that: It also comprises a shell (3), part of the power connection structure (1) and part of the power supply structure (2) are arranged in the shell (3), and the power input interface of the power connection structure (1) and the power output interface (21) of the power supply structure (2) respectively extend out of the shell (3); The power input interface comprises a first power input interface (111) arranged on the first power connection component (11) and a second power input interface (121) arranged on the second power connection component (12).

5. The power taking mechanism according to claim 4, characterized in that: The first power connection component (11) comprises a first conductive plate (112) and a first conductive wire (113), wherein: the first conductive plate (112) can be in contact with or separated from the power supply structure (2); one end of the first conductive wire (113) is connected to the first conductive plate (112), and the other end thereof is provided with the first power input interface (111); And / or, the second power connection component (12) comprises a second conductive plate (122) and a second conductive wire (123), wherein: the second conductive plate (122) can be in contact with or separated from the power supply structure (2); one end of the second conductive wire (123) is connected to the second conductive plate (122), and the other end thereof is provided with the second power input interface (121).

6. The power taking mechanism according to claim 5, characterized in that: The power supply structure (2) comprises a third conductive plate (22), a sliding assembly (23) and a third conductive wire (24), wherein: The third conductive plate (22) is arranged between the first conductive plate (112) and the second conductive plate (122); the sliding component (23) is used to drive the third conductive plate (22) to move between the first conductive plate (112) and the second conductive plate (122); one end of the third conductive wire (24) is connected to the third conductive plate (22), and the other end thereof is provided with the power output interface (21).

7. The power taking mechanism according to claim 6, characterized in that: The sliding assembly (23) comprises a push handle (231), one end of the push handle (231) is connected to the third conductive plate (22), and the other end thereof passes through the housing (3); And / or, the sliding assembly (23) comprises a sliding platform (232), the sliding platform (232) is slidably mounted on the housing (3), and the third conductive plate (22) is fixedly mounted on the sliding platform (232).

8. The power taking mechanism according to claim 6, characterized in that: The third conductive plate (22) is U-shaped and comprises a first contact portion, a second contact portion, and a connecting portion connected to the first contact portion and the second contact portion, wherein: The first contact portion is arranged opposite to the first conductive plate (112); the second contact portion is arranged opposite to the second conductive plate (122); and the connecting portion is fixedly mounted on the sliding component (23).

9. The power taking mechanism according to claim 3, characterized in that: It also includes a gear position mark for distinguishing the first state, the second state and the third state.

10. A circuit breaker, characterized in that: It comprises a first wiring terminal (100), a second wiring terminal (200), a control system (300), and one or more power extraction mechanisms according to any one of claims 1 to 9.

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