An auxiliary alarm structure suitable for hydraulic electromagnetic circuit breaker

Abstract

The present invention discloses an auxiliary alarm structure applicable to a hydraulic electromagnetic circuit breaker in the field of circuit breakers, and the auxiliary alarm structure applicable to a hydraulic electromagnetic circuit breaker includes a linkage mechanism and an auxiliary alarm mechanism; the auxiliary alarm mechanism includes at least one group of prompt components installed on a housing; the prompt component includes a first conductive plate, a second conductive plate, a third conductive plate and a fourth conductive plate, the first conductive plate, the second conductive plate and the third conductive plate are all fixed in the housing, the fourth conductive plate is slidably installed in the housing, and when the fourth conductive plate slides, the first conductive plate and the second conductive plate can be turned on, or the first conductive plate and the third conductive plate can be turned on; the circuit breaker can change the state of the prompt component through the linkage mechanism. In the present invention, the auxiliary alarm mechanism and the circuit breaker are linked, and the auxiliary alarm mechanism adopts a double-contact structure for circuit switching, and no longer relies on the elasticity of the conductive plate itself, which can effectively improve the reliability of the device.

Description

Technical Field

[0001] The invention relates to the field of circuit breakers, and in particular to an auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker. Background Art

[0002] In order to realize the auxiliary alarm function of the hydraulic electromagnetic circuit breaker in the prior art, a small auxiliary switch is generally installed inside the circuit breaker body, and the auxiliary alarm function is realized by using the mechanical linkage mechanism inside the circuit breaker. Since this method occupies a part of the internal space of the circuit breaker body, it will have a certain impact on the structural layout design of the circuit breaker. At the same time, when the circuit breaker itself has a very compact structure, it cannot be laid out, and the auxiliary alarm function of the circuit breaker product cannot be realized.

[0003] In the miniature circuit breaker, the auxiliary alarm structure is used as a separate pole, but the internal structure of this form uses the moving contact welded on a thin beryllium bronze, and then the contact switching is achieved by pulling the beryllium bronze, and the contact pressure source is also the deformation of the beryllium bronze. In this structural method, during long-term use, the contact pressure will be reduced or unevenly distributed due to the deformation plasticity of the beryllium bronze, resulting in the risk of product failure.

[0004] The prior art with publication number CN217387059U discloses a dual alarm contact mechanism and a circuit breaker, which includes a shell, a linkage mechanism arranged in the shell, an indicator, a first contact, a second contact, a first terminal assembly, a second terminal assembly, a third terminal assembly, a fourth terminal assembly, a fifth terminal assembly and a sixth terminal assembly; the linkage mechanism is rotatably connected to the indicator and drives the indicator to rotate, the first end of the first contact is fixedly connected to the first terminal assembly, and the middle part is abutted against the indicator, and the first end of the second contact is fixedly connected to the fourth terminal assembly, and the middle part is abutted against the indicator; the indicator rotates to the first position, the second end of the first contact is connected to the second terminal assembly, and the second end of the second contact is connected to the fifth terminal assembly; the indicator rotates to the second position, the second end of the first contact is connected to the third terminal assembly, and the second end of the second contact is connected to the sixth terminal assembly.

[0005] In the prior art, the first contact is elastic, and one end of the first contact is fixedly connected to the first terminal assembly, and the second end of the first contact swings between the second terminal assembly and the third terminal assembly; in this way, the power of the contact comes from the linkage structure and its own elastic force. This method makes it easy for the contact to deform when the circuit breaker is used for a long time, resulting in a higher risk of product failure. Summary of the invention

[0006] In order to solve the problem in the prior art that the auxiliary alarm assembly needs to rely on the elasticity of the contacts themselves to achieve on and off, which causes the product to fail easily, the purpose of the present invention is to provide an auxiliary alarm structure suitable for hydraulic electromagnetic circuit breakers, in which the contact conversion adopts a double-contact structure, which can effectively improve the electrical life of the product and the reliability of the product's contact conduction.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker, comprising a linkage mechanism and an auxiliary alarm mechanism; the auxiliary alarm mechanism comprises at least one group of prompt components installed on a shell; the prompt components comprise a first conductive plate, a second conductive plate, a third conductive plate and a fourth conductive plate, the first conductive plate, the second conductive plate and the third conductive plate are all fixed in the shell, the fourth conductive plate is slidably installed in the shell, and when the fourth conductive plate slides, it can conduct the first conductive plate and the second conductive plate, or conduct the first conductive plate and the third conductive plate; the handle and / or indicator of the circuit breaker can drive at least one group of prompt components to operate through the linkage mechanism to change the state of the prompt components.

[0008] Preferably, a first installation position and a second installation position are provided in the shell, and the prompt component is an auxiliary component and / or an alarm component; the linkage mechanism includes a first linkage component and a second linkage component; if the prompt component is installed in the first installation position, the handle of the circuit breaker can change the state of the prompt component through the first linkage component; if the alarm prompt component is installed in the second installation position, the indicator of the circuit breaker can drive the second linkage component to unlock, and the handle of the circuit breaker can drive the second linkage component through the first linkage component to change the prompt component.

[0009] Preferably, the prompt component also includes a first elastic member, which is arranged between the shell and the fourth conductive plate; wherein the first elastic member can drive the fourth conductive plate to connect the first conductive plate and the third conductive plate, and the linkage mechanism can drive the fourth conductive plate to connect the first conductive plate and the second conductive plate.

[0010] Preferably, the first elastic member includes a spring, and the prompt assembly includes a first mounting seat and a second mounting seat, the first mounting seat is embedded in the shell, and the second mounting seat is fixedly connected to the fourth conductive plate; a first positioning portion is protruded on the first mounting seat, and a second positioning portion is protruded on the second mounting seat, and both ends of the spring are respectively mounted on the first positioning portion and the second positioning portion, and the two ends of the spring are respectively against the first mounting seat and the second mounting seat.

[0011] Preferably, a third mounting seat is further included, and the second mounting seat and the third mounting seat clamp the fourth conductive plate; a first connecting portion with a thread is protruded from the second mounting seat, and the third mounting seat is threadedly connected to the first connecting portion of the second mounting seat.

[0012] Preferably, the first connecting portion is connected to a middle position of the third mounting seat.

[0013] Preferably, a second elastic member is installed on the fourth conductive plate, and the linkage mechanism drives the fourth conductive plate to move by pushing the second elastic member.

[0014] Preferably, the second elastic member comprises a spring leaf, both ends of which are connected to the fourth conductive plate, and the spring leaf is in a curved shape.

[0015] Preferably, a U-shaped C terminal is provided on the first conductive plate, a NO terminal is provided on the second conductive plate, and a NC terminal is provided on the third conductive plate, and the NO terminal and the NC terminal are arranged opposite to each other; one end of the fourth conductive plate extends into the C terminal of the first conductive plate, and the other end of the fourth conductive plate is input between the NO terminal and the NC terminal.

[0016] Preferably, the first contact and the second contact are respectively installed at two ends of the fourth conductive plate, the first contact is located at the C end of the first conductive plate, and the second contact is located between the NO end and the NC end.

[0017] The beneficial effects of the technical solution of the present invention are as follows: the prompt components with different functions can be selectively installed separately to realize one of the functions, or they can be installed at the same time to realize the dual functions of auxiliary alarm; and the above structure uses the handle of the circuit breaker to perform state conversion, so this handle driving method can be widely used in various forms of hydraulic electromagnetic circuit breakers, thereby making the above structure more versatile. In addition, different prompt components can be driven by different linkage structures, thereby making the above structure more versatile. In addition, the conversion structure of the contacts in the prompt component is a double-contact structure, and the contact conduction no longer relies on the elasticity of the conductive plate itself, which can effectively improve the electrical life of the product and the reliability of the product contact conduction. The auxiliary alarm structure of the present invention is a brand-new design, which has the characteristics of strong versatility and high reliability, and can add bricks and tiles to the research and development of accessories for the hydraulic electromagnetic circuit breaker series products, and has the advantages of energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the connection structure between the circuit breaker and the auxiliary alarm structure;

[0019] Figure 2 A schematic diagram of the auxiliary alarm structure Figure 1 ;

[0020] Figure 3 A schematic diagram of the auxiliary alarm structure Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the auxiliary alarm structure after the cover is removed;

[0022] Figure 5 It is a schematic diagram of the structure of the auxiliary component, the alarm component and the linkage mechanism in the initial state;

[0023] Figure 6 It is a schematic diagram of the structure of the auxiliary components, alarm components and linkage mechanism when encountering a fault circuit;

[0024] Figure 7 This is a schematic diagram of the structure of the auxiliary components, alarm components and linkage mechanism after the gate is opened;

[0025] Figure 8 is a schematic diagram of the structure of the bottom shell;

[0026] Fig. 9 is a structural schematic diagram of a first linkage member;

[0027] Fig.10 is a schematic structural diagram of a first driving member;

[0028] Fig.11 is a schematic diagram of the structure of the fastener;

[0029] Fig.12 is a schematic structural diagram of a second driving member;

[0030] Fig.13 A schematic diagram of the structure of the prompt component.

[0031] Reference numerals: 3, bottom shell; 31, working chamber; 311, first mounting groove; 312, second mounting groove; 313, third mounting groove; 314, fourth mounting groove; 32, first positioning column; 33, third positioning column; 34, fourth positioning column; 35, fifth positioning column; 36, third hole; 37, sixth positioning column; 38, fifth hole; 39, second positioning column; 4, cover plate;

[0032] 5. Prompt assembly; 51. First conductive plate; 511. C terminal; 52. Second conductive plate; 521. NO terminal; 53. Third conductive plate; 531. NC terminal; 54. First elastic member; 541. First mounting seat; 542. First positioning portion; 55. Fourth conductive plate; 551. First connecting portion; 552. Third mounting seat; 553. Second mounting seat; 56. First contact point; 57. Second contact point; 58. Second elastic member;

[0033] 71, first linkage member; 711, first connecting arm; 712, first linkage shaft; 713, second connecting arm; 714, second linkage shaft; 715, first hole; 72, first driving member; 721, waist-shaped hole; 722, limiting part; 723, linkage part; 724, second hole;

[0034] 81, fastener; 812, second connecting portion; 813, first clamping protrusion; 814, fourth hole; 82, second driving member; 821, second clamping protrusion; 822, sixth hole; 823, driving portion; 83, second linkage member; 84, third elastic member;

[0035] 9. Unfastening piece; 91. Third connecting arm. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. Example

[0041] like Figures 1 to 13 An auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker is presented, comprising a linkage mechanism and an auxiliary alarm mechanism;

[0042] The auxiliary alarm mechanism includes at least one group of prompting components 5 installed on the shell; the prompting component 5 includes a first conductive plate 51, a second conductive plate 52, a third conductive plate 53 and a fourth conductive plate 55, the first conductive plate 51, the second conductive plate 52 and the third conductive plate 53 are all fixed in the shell, and the fourth conductive plate 55 is slidably installed in the shell, and when the fourth conductive plate 55 slides, it can conduct the first conductive plate 51 and the second conductive plate 52, or conduct the first conductive plate 51 and the third conductive plate 53;

[0043] The handle 11 and / or the indicator 12 of the circuit breaker can drive at least one group of prompt components 5 to operate through a linkage mechanism, so that the state of the prompt components 5 changes.

[0044] With such arrangement, the prompt components 5 with different functions can be selectively installed separately to realize one of the functions, or they can be installed at the same time to realize the dual functions of auxiliary alarm. And the above-mentioned following utilizes the handle 11 of the circuit breaker 1 to perform state conversion, so this handle 11 driving method can be generally used for various forms of hydraulic electromagnetic circuit breakers 1, thereby making the above-mentioned structure more versatile. In addition, different prompt components 5 can be driven by different linkage structures, thereby making the above-mentioned structure more versatile. In addition, the conversion of contacts adopts a double-contact structure, which can effectively improve the electrical life of the product and improve the reliability of the product's contact conduction. The auxiliary alarm structure of the present invention is a brand-new design, which has the characteristics of strong versatility and high reliability, and can add bricks and tiles to the research and development of accessories for the hydraulic electromagnetic circuit breaker 1 series products, and has the advantages of energy saving and consumption reduction.

[0045] In this embodiment, a first installation position and a second installation position are provided in the housing, and the prompt component 5 is an auxiliary component and / or an alarm component; the linkage mechanism includes a first linkage component and a second linkage component; if the prompt component is installed in the first installation position, the handle 11 of the circuit breaker can change the state of the prompt component through the first linkage component; if the alarm prompt component is installed in the second installation position, the indicator 12 of the circuit breaker can drive the second linkage component to unlock, and the handle 11 of the circuit breaker can drive the second linkage component through the first linkage component to change the prompt component. In this arrangement, the auxiliary component utilizes the opening and closing rotation of the handle 11 to push the auxiliary contact part to realize the auxiliary state switching of opening and closing; the alarm component utilizes the circuit breaker 1 to encounter a fault current, execute the internal tripping mechanism, and unlock the alarm device through the multi-pole linkage device of the internal tripping mechanism of the circuit breaker 1 to realize the switching of the alarm contacts.

[0046] In this embodiment, Figure 4 , Figure 5 , Figure 6 , Figure 7 and Fig.13 As shown, the prompt component 5 also includes a first elastic member 54, which is arranged between the shell and the fourth conductive plate 55; wherein the first elastic member 54 can drive the fourth conductive plate 55 to connect the first conductive plate 51 and the third conductive plate 53, and the linkage mechanism can drive the fourth conductive plate 55 to connect the first conductive plate 51 and the second conductive plate 52.

[0047] Furthermore, the first elastic member 54 includes a spring, and the prompt assembly 5 includes a first mounting seat 541 and a second mounting seat 553. The first mounting seat 541 is embedded in the housing 3, and the second mounting seat 553 is fixedly connected to the fourth conductive plate 55. A first positioning portion 542 is protruded from the first mounting seat 541, and a second positioning portion 554 is protruded from the second mounting seat 553. The spring is sleeved on the first positioning portion 542 and the second positioning portion 554, and the two ends of the spring are respectively against the first mounting seat 541 and the second mounting seat 553. In this arrangement, the contact pressure is realized by a pressure spring instead of the existing elastic contact sheet, which can further improve the reliability of the product contact conduction and make the contact pressure more uniform and stable.

[0048] Further, such as Fig.13 As shown, the third mounting seat 552 is also included, and the second mounting seat 553 and the third mounting seat 552 clamp the fourth conductive plate 55; the second mounting seat 553 is provided with a first connecting portion 551 having a thread, and the third mounting seat 552 is threadedly connected to the first connecting portion 551 of the second mounting seat 553; wherein the first connecting portion 551 is connected to the middle position of the third mounting seat 552. Such a configuration facilitates the installation and positioning of the fourth conductive plate 55, and makes the movement of the fourth conductive plate more stable.

[0049] In this embodiment, Fig.13 As shown, a second elastic member 58 is also installed on the fourth conductive plate 55, and the linkage mechanism drives the fourth conductive plate 55 to move by pushing the second elastic member 58. Such a configuration can improve the stability of the prompt component 5, reduce the probability of misoperation, and effectively increase the electrical life of the product. In addition, the second elastic member can effectively compensate for manufacturing and installation errors and maintain the stability of contact connection. Furthermore, the second elastic member 58 includes a spring, and both ends of the spring are connected to the fourth conductive plate 55, and the spring is bent; specifically, two sockets are provided on the third mounting seat 552, and the two ends of the spring are respectively inserted into the two sockets of the third mounting seat 552 to make the spring bent;

[0050] In this embodiment, Fig.13 As shown, the first conductive plate 51 is provided with a U-shaped C terminal 511, the second conductive plate 52 is provided with a NO terminal 521, and the third conductive plate 53 is provided with a NC terminal 531; one end of the fourth conductive plate 55 extends into the C terminal 511 of the first conductive plate 51, and the other end of the fourth conductive plate 55 is input between the NO terminal 521 and the NC terminal 531; wherein, in this embodiment, the NO terminal 521 and the NC terminal 531 are arranged facing each other. Such an arrangement can effectively reduce the complexity of the structure, and the prompt component 5 is installed on the housing 3, which is convenient for positioning and installing each conductive plate.

[0051] In this embodiment, Fig.13 As shown, the first contact 56 and the second contact 57 are respectively installed at the two ends of the fourth conductive plate 55, the first contact 56 is located in the C end 511 of the first conductive plate 51, and the second contact 57 is located between the NO end 521 and the NC end 531. In this way, the fourth conductive plate adopts a double-contact structure, which can effectively improve the electrical life of the product.

[0052] In this embodiment, Figures 4 to 8 As shown, the first linkage assembly includes a first linkage member 71 and a first driving member 72. The first linkage member 71 is rotatably installed on the housing 3. The first linkage member 71 is fixedly connected to the handle 11 of the circuit breaker 1, and one end of the first linkage member 71 is hinged to the first driving member 72; the first driving member 72 is slidably connected to the second positioning column 39 fixed on the housing 3. When the handle 11 drives the first linkage member 71 to rotate, the first linkage member 71 can drive the first driving member 72 to slide on the second positioning column 39, so that the first driving member 72 pushes the fourth conductive plate 55 to move, so that the C end 511 is separated from the NC end 531, and the C end 511 is connected to the NO end 521.

[0053] Further, such as Figures 4 to 10As shown, a first positioning column 32 is protruded on the shell 3, and a first hole 715 is provided on the first linkage member 71. The first positioning column 32 is inserted into the first hole 715, so that the first linkage member 71 is rotatably connected to the shell 3; a first connecting arm 711 is protruded on the first linkage member 71, and a first linkage shaft 712 is protruded on the first connecting arm 711. The first linkage shaft 712 is plugged into the linkage hole on the handle 11, so that the first linkage member 71 is connected to the handle 11; a second connecting arm 713 is protruded on the first linkage member 71, and a second linkage shaft 714 is protruded on the second connecting arm 713. A second hole 724 is provided on the first driving member 72, and the second linkage shaft 714 is plugged into the second hole 724, so that the first linkage member 71 is hinged to the first driving member 72; an arc-shaped waist-shaped hole 721 is provided on the first driving member 72, and the second positioning column 39 on the shell 3 is inserted into the waist-shaped hole 721, so that the first driving member 72 and the shell 3 are slidably matched. Such an arrangement facilitates installation of the first linkage assembly on the housing 3 and facilitates installation and positioning of various components.

[0054] In this embodiment, Figures 4 to 13 As shown, the second linkage assembly includes a second linkage member 83, a fastener 81, a second driving member 82 and a third elastic member 84, the first linkage member 71 is rotatably mounted on the housing 3, the second linkage member 83 is connected to the indicator member 12 of the circuit breaker 1, the fastener 81 is rotatably mounted on the housing 3, the two ends of the third elastic member 84 are respectively connected to the fastener 81 and the housing, the second driving member 82 is rotatably mounted on the housing 3, the second driving member 82 is engaged with the fastener 81, the third elastic member can keep the fastener 81 engaged with the second driving member 82, and the second driving member 82 is protruded with a driving portion 823 for driving the fourth conductive plate 55 of the alarm assembly. In this way, a unique alarm lock buckle design is adopted, and the alarm contact can be switched by means of the lock buckle.

[0055] Further, such as Figure 8 As shown, the housing 3 is provided with a third hole 36. Figure 4 As shown, one end of the indicator 12 of the circuit breaker 1 extends into the housing 3 through the third hole 36, and the second linkage member 83 is sleeved and fixed on the indicator, so that the second linkage member 83 is linked with the indicator 12; Figure 8 As shown, a third positioning column 33 is protruded from the housing 3. Fig.11 As shown, the fastener 81 is provided with a fourth hole 814. Figures 4 to 7 As shown, the fastener 81 is sleeved on the third positioning column 33 through the fourth hole 814, so that the fastener 81 is rotatably mounted on the housing 3; Figure 8 As shown, a fourth positioning column 34 is protruded from the housing 3. Figure 4As shown, the third elastic member 84 is a torsion spring, which is sleeved on the fourth positioning column 34. A fifth positioning column 35 is protruded from the housing 3. One leg of the torsion spring abuts against the fourth positioning column 34, and the other leg of the torsion spring abuts against the bottom of one end of the fastener 81. Further, as Fig.11 As shown, the second connecting portion 812 is protruded on the fastener 81, and the leg of the torsion spring is against the second connecting portion 812 of the fastener 81, so that the fastener 81 can be thinner; the sixth positioning column 37 is protruded on the housing 3, and the sixth hole 822 is provided on the second driving member 82. The second driving member 82 is sleeved on the sixth positioning column 37 through the sixth hole 822, so that the second driving member 82 is rotatably installed on the housing 3; the first clamping protrusion 813 is provided at the bottom of the fastener 81, and the second clamping protrusion 821 is provided at the top of the second driving member 82. The second clamping protrusion 821 is located between the first clamping protrusion 813 and the second linkage member 83. The spring of the alarm component pushes the second driving member 82 through the fourth conductive plate 55, so that the second clamping protrusion 821 and the first clamping protrusion 813 are tightly pressed. Such a configuration makes it easy to install the first linkage component on the housing 3, and to install and position each component.

[0056] In this embodiment, Figures 4 to 7 As shown, the first linkage component is connected to the second linkage component; after the first linkage component is actuated, the second linkage component is actuated; this makes the structure of the linkage mechanism simpler, and can effectively prevent misoperation or false failure, and improve the stability and accuracy of the device. Specifically, as Fig.10 As shown, a linkage portion 723 protrudes from the first driving member 72, and the linkage portion 723 can be abutted against the second driving member 82; when the first linkage component is reset, the first driving member 72 can drive the second driving member 82 of the second linkage component through the linkage portion 723, so that the second driving member 82 is reset, and the torsion spring drives the fastener 81 and the second driving member 82 to engage, and the second driving member drives the alarm component installed at the second installation position to move, and the auxiliary component installed at the first installation position is reset under the action of the first elastic member.

[0057] In this embodiment, Fig.12 As shown, the first driving member 72 is provided with a limiting portion 722, which can abut against the housing 3, thereby improving the stability of the movement of the first linkage assembly; the second positioning column 39 on the housing 3 is arranged between the limiting portion 722 and the linkage portion 723, and the second connecting arm 713, the buckle 81 and the second driving member 82 of the first linkage member 71 are located behind the first driving member 72. This can make the structure of the device thinner.

[0058] In this embodiment, Figure 3 and Figure 4As shown, a rotatable release member 9 is also installed in the housing 3, and the release member 9 is located below the fastener 81; when the release member 9 rotates, it can push the fastener 81 to rotate, so that the fastener 81 and the second drive member 82 are unlocked and released, and a third connecting arm 91 is protruded on the release member, and the third connecting arm 91 can extend into the circuit breaker from the fifth hole 38 on the housing and connect with the multi-pole trigger rod structure in the circuit breaker. With such a configuration, the present invention proposes two different alarm unlocking schemes in different positions; wherein, the second linkage member 83 represents a multi-pole triggering mode in which the multi-pole trigger rod of the circuit breaker 1 is installed on the frame; wherein, the release member 9 represents a multi-pole triggering mode in which the multi-pole trigger rod is installed on the housing, and a pull rod is used to unlock and realize a multi-pole synchronous disconnection; and other types of multi-pole triggering modes can be realized on this structure.

[0059] In this embodiment, Figures 1 to 3 As shown, the shell includes a bottom shell 3 and a cover plate 4 that are fixedly connected. The bottom shell 3 and the cover plate 4 cooperate to form a working chamber. The auxiliary alarm mechanism and the linkage mechanism are both arranged in the working chamber. The first connecting arm 711 extends from the working chamber and is connected to the handle 11 of the circuit breaker 1.

[0060] In this embodiment, Figure 4 and Figure 8 As shown, the auxiliary component is installed at the first installation position of the working chamber of the shell, and the alarm component is installed at the first installation position of the working chamber of the shell. The first installation position and the second installation position have the same structure and are symmetrically arranged; specifically, the first installation position includes a first installation groove 311, a second installation groove 312, a third installation groove 313 and a fourth installation groove 314 arranged on the bottom shell, a part of the first conductive plate 51 is embedded in the first installation groove 311, a part of the second conductive plate 52 is embedded on the second installation groove 312, a part of the third conductive plate 53 is installed in the third installation groove 313, and the first installation seat 541 is embedded in the fourth installation groove 314. Further, the first installation groove 311, the second installation groove 312 and the third installation groove 313 are all connected to the space outside the shell. Such an arrangement can effectively exhaust air and ensure safety.

[0061] In this embodiment, Figure 5 As shown, in the initial state, the auxiliary component is installed in the first installation position, and the alarm component is installed in the second installation position; wherein, in the auxiliary component, the fourth conductive plate 55 connects the first conductive plate 51 and the third conductive plate 53; in the alarm component, the second driving member 82 is pressed against the fourth conductive plate 55, and the fourth conductive plate 55 connects the first conductive plate 51 and the second conductive plate 52; in the first linkage component and the second linkage component, the linkage portion 723 of the first driving member 72 is pressed against the second driving member 82.

[0062] When the circuit breaker 1 encounters a fault current, the circuit breaker 1 is internally tripped and unlocked, and the handle 11 and the indicator 12 of the circuit breaker 1 rotate; Figure 6 As shown, the handle 11 drives the first linkage member 71 to rotate, the first linkage member 71 drives the first driving member 72 to slide in the housing, the first driving member 72 pushes the spring of the auxiliary component, so that the fourth conductive plate 55 of the auxiliary component moves, the first conductive plate 51 and the third conductive plate 53 in the auxiliary component are disconnected, the first conductive plate 51 and the second conductive plate 52 are connected through the first conductive plate 51, and the fourth conductive plate 55 compresses the spring. Figure 7 As shown, the indicator member 12 drives the second linkage member 83 to rotate, the second linkage member 83 drives the fastener 81 to rotate, the fastener 81 compresses the torsion spring, and the first locking protrusion 813 of the fastener 81 is separated from the second locking protrusion 821 of the second driving member 82; wherein, after the first driving member 72 moves, in the alarm assembly, the spring pushes the fourth conductive plate 55, so that the first conductive plate 51 and the second conductive plate 52 are disconnected, and the first conductive plate 51 and the third conductive plate 53 are connected through the fourth conductive plate 55;

[0063] When the circuit breaker 1 is reset, the handle 11 and the indicator 12 of the circuit breaker 1 are reset, the handle 11 drives the first linkage member 71 to rotate, the first linkage member 71 drives the first driving member 72 to slide in the housing, the first driving member 72 is separated from the fourth conductive plate 55 of the auxiliary component, the indicator 12 is reset, the torsion spring drives the buckle 81 to reset, when the first driving member 72 moves, the first driving member 72 drives the second driving member 82 to rotate through the linkage portion 723, the second locking protrusion 821 of the second driving member pushes the bottom of the buckle 81 to rotate the buckle 81, when the second locking protrusion 821 passes the first locking protrusion After 813, the fastener 81 is reset under the action of the torsion spring and is engaged with the second driving member; in the auxiliary component, the spring pushes the fourth conductive plate 55 to move, so that the first conductive plate 51 and the second conductive plate 52 are disconnected, and the first conductive plate 51 and the third conductive plate 53 are connected through the fourth conductive plate 55; in the alarm component, the second driving member 82 pushes the reed of the alarm component to move the fourth conductive plate 55 of the alarm component, compresses the spring of the alarm component, and disconnects the first conductive plate 51 and the third conductive plate 53, and the first conductive plate 51 and the second conductive plate 52 are connected through the fourth conductive plate 55.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. An auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker, characterized in that: Including linkage mechanism and auxiliary alarm mechanism; The auxiliary alarm mechanism comprises at least one group of prompting components (5) mounted on a housing; the prompting components (5) comprise a first conductive plate (51), a second conductive plate (52), a third conductive plate (53) and a fourth conductive plate (55); the first conductive plate (51), the second conductive plate (52) and the third conductive plate (53) are all fixed in the housing; the fourth conductive plate (55) is slidably mounted in the housing; when the fourth conductive plate (55) slides, it is capable of conducting the first conductive plate (51) and the second conductive plate (52), or conducting the first conductive plate (51) and the third conductive plate (53); The handle (11) and / or the indicator (12) of the circuit breaker can drive at least one set of prompt components (5) to operate through a linkage mechanism, thereby changing the state of the prompt components (5); A first installation position and a second installation position are provided in the housing, and the prompt component (5) is an auxiliary component and / or an alarm component; The linkage mechanism comprises a first linkage component and a second linkage component; if the prompt component is installed in a first installation position, the handle (11) of the circuit breaker can change the state of the prompt component through the first linkage component; if the alarm prompt component is installed in a second installation position, the indicator (12) of the circuit breaker can drive the second linkage component to unlock, and the handle (11) of the circuit breaker can drive the second linkage component through the first linkage component to change the state of the prompt component; In the initial state, the auxiliary component is installed at the first installation position, and the alarm component is installed at the second installation position; wherein, in the auxiliary component, the fourth conductive plate (55) conducts the first conductive plate (51) and the third conductive plate (53); in the alarm component, the second driving member (82) is pressed against the fourth conductive plate (55), and the fourth conductive plate (55) conducts the first conductive plate (51) and the second conductive plate (52); in the first linkage component and the second linkage component, the linkage portion (723) of the first driving member (72) is pressed against the second driving member (82); When the circuit breaker (1) encounters a fault current, the circuit breaker (1) is internally tripped and unlocked, and the handle (11) and the indicator (12) of the circuit breaker (1) rotate; wherein the handle (11) drives the first linkage member (71) to rotate, the first linkage member (71) drives the first drive member (72) to slide in the housing, the first drive member (72) pushes the spring of the auxiliary component, so that the fourth conductive plate (55) of the auxiliary component moves, the first conductive plate (51) and the third conductive plate (53) in the auxiliary component are disconnected, and the first conductive plate (51) and the second conductive plate (52) are connected through the first conductive plate (51). The fourth conductive plate (55) compresses the spring; the indicator (12) drives the second linkage member (83) to rotate, the second linkage member (83) drives the fastener (81) to rotate, the fastener (81) compresses the torsion spring, and the first latching protrusion (813) of the fastener (81) is separated from the second latching protrusion (821) of the second driving member (82); wherein, after the first driving member (72) moves, in the alarm component, the spring pushes the fourth conductive plate (55), so that the first conductive plate (51) and the second conductive plate (52) are disconnected, and the first conductive plate (51) and the third conductive plate (53) are connected through the fourth conductive plate (55).

2. The auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker according to claim 1, characterized in that: The prompt component (5) further comprises a first elastic member (54), the first elastic member (54) being arranged between the housing and the fourth conductive plate (55); wherein the first elastic member (54) is capable of driving the fourth conductive plate (55) to connect the first conductive plate (51) and the third conductive plate (53), and the linkage mechanism is capable of driving the fourth conductive plate (55) to connect the first conductive plate (51) and the second conductive plate (52).

3. The auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker according to claim 2, characterized in that: The first elastic member (54) comprises a spring, and the prompt assembly (5) comprises a first mounting seat (541) and a second mounting seat (553), wherein the first mounting seat (541) is embedded in the housing, and the second mounting seat (553) is fixedly connected to the fourth conductive plate (55); a first positioning portion (542) is protruded from the first mounting seat (541), and a second positioning portion (554) is protruded from the second mounting seat (553), and two ends of the spring are respectively sleeved on the first positioning portion (542) and the second positioning portion (554), and the two ends of the spring are respectively abutted against the first mounting seat (541) and the second mounting seat (553).

4. The auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker according to claim 3, characterized in that: It also comprises a third mounting seat (552), the second mounting seat (553) and the third mounting seat (552) clamping the fourth conductive plate (55); a first connecting portion (551) having a thread protrudes from the second mounting seat (553), and the third mounting seat (552) is threadedly connected to the first connecting portion (551) of the second mounting seat (553).

5. The auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker according to claim 4, characterized in that: The first connecting portion (551) is connected to a middle position of the third mounting seat (552).

6. The auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker according to claim 1, characterized in that: A second elastic member (58) is mounted on the fourth conductive plate (55), and the linkage mechanism drives the fourth conductive plate (55) to move by pushing the second elastic member (58).

7. The auxiliary alarm structure for a hydraulic electromagnetic circuit breaker according to claim 6, characterized in that: The second elastic member (58) comprises a spring leaf, two ends of which are connected to the fourth conductive plate (55), and the spring leaf is in a curved shape.

8. The auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker according to claim 1, characterized in that: The first conductive plate (51) is provided with a U-shaped C terminal (511), the second conductive plate (52) is provided with a NO terminal (521), and the third conductive plate (53) is provided with a NC terminal (513), wherein the NO terminal (521) and the NC terminal (513) are arranged opposite to each other; one end of the fourth conductive plate (55) extends into the C terminal (511) of the first conductive plate (51), and the other end of the fourth conductive plate (55) is input between the NO terminal (521) and the NC terminal (513).

9. The auxiliary alarm structure suitable for a hydraulic electromagnetic circuit breaker according to claim 8, characterized in that: The first contact (56) and the second contact (57) are respectively mounted at two ends of the fourth conductive plate (55); the first contact (56) is located in the C end (511) of the first conductive plate (51); and the second contact (57) is located between the NO end (521) and the NC end (513).

Images