Electrical device

Abstract

The present disclosure relates to an electrical device. The electrical device (1) comprises an assembly (10). The assembly (10) includes a disc assembly (100), a handle (104), and a connecting rod (105). The disk assembly (100) comprises an upper disk (101), a middle disk (102) and a lower disk (103) rotatable about the same axis. The handle (104) can be switched between an opening position and a closing position. One end of a connecting rod (105) is connected to the handle (104), and the other end of the connecting rod (105) is inserted into a groove (106) formed by the upper disc (101), the middle disc (102) and the lower disc (103). According to the embodiment of the invention, the electrical device (1) is short in motion dimension chain, simple in structure, stable and reliable.

Description

Technical Field

[0001] Exemplary embodiments of the present disclosure generally relate to the technical field of low-voltage electrical appliances, and more particularly to an electrical device. Background Art

[0002] Signal auxiliary accessories are a common line protector accessory, which can be used in conjunction with miniature circuit breakers, leakage protectors and other switching electrical appliances that can connect, carry and disconnect current circuits. Signal auxiliary accessories can generally be divided into auxiliary accessories or signal fault accessories according to their functions. Auxiliary accessories indicate the opening and closing of circuit breakers by connecting and disconnecting moving and static contacts, while signal fault accessories indicate overload, short circuit and other faults only by connecting and disconnecting moving and static contacts when a fault occurs in the circuit where the circuit breaker is located. With the improvement of industry requirements, the low-voltage electrical field must have clear status feedback on the real-time status of the on-off and fault of the circuit breaker, which must feedback both the normal on-off signal of the circuit breaker and the fault signal of the circuit breaker.

[0003] In the traditional signal / auxiliary accessory solution, the function is relatively single. In actual use, multiple accessories are needed to realize the functions of circuit breaker on / off and fault alarm. The product structure occupies a large space, the number of accessories is large, the number of accessories that can be matched with the circuit breaker is limited, and the circuit breaker status cannot be fully fed back under remote monitoring. In this case, the manufacturer needs to provide different accessories for use. Not only does the user need to disassemble and replace the function during use, which causes inconvenience, but also increases the installation space and cost. Therefore, there is an urgent need for a signal auxiliary accessory with a simple and reliable structure. Utility Model Content

[0004] At least to overcome the problems existing in the prior art solutions and / or other potential problems, an exemplary embodiment of the present disclosure proposes an electrical device including auxiliary-signal and auxiliary-auxiliary functions.

[0005] The embodiments of the present disclosure relate to an electrical device. The electrical device comprises an assembly, the assembly comprises a disk assembly, a handle and a connecting rod, the disk assembly comprises an upper disk, a middle disk and a lower disk that can rotate around the same axis, the handle can be switched between an open position and a closed position, and a connecting rod, one end of which is connected to the handle and the other end is inserted into a slot formed by the upper disk, the middle disk and the lower disk.

[0006] According to the embodiments of the present disclosure, the three coaxially stacked upper discs, middle discs and lower discs make the control more diversified, and can realize two different functions: signal / auxiliary function and auxiliary / auxiliary function. In addition, the three-disc stacking arrangement can also save space, making the electrical device more compact as a whole. Furthermore, the disc assembly and other mechanisms in the electrical device are relatively independent module structures, but this does not affect the ability of these structures to be coupled to each other when needed to complete predetermined actions and functions. Such a design makes the electrical device as a whole more reliable and stable, and extends the service life of the electrical device.

[0007] In some embodiments, when the middle plate and the lower plate are in a locked state, the upper plate rotates independently driven by the handle and the connecting rod; and when the middle plate and the lower plate are in an unlocked state, the upper plate, the middle plate and the lower plate rotate synchronously driven by the handle and the connecting rod.

[0008] In some embodiments, a middle plate groove is provided on the middle plate, and the lower plate includes a lower plate boss that can be inserted into the middle plate groove. The middle plate and the lower plate rotate or lock synchronously under the action of the middle plate spring.

[0009] In some embodiments, the electrical device further includes a switching assembly, which includes: a switching knob capable of rotating between a locked position and an unlocked position; a switching rod having a switching hook at an end thereof; and a switching rod spring disposed between the housing and the switching rod.

[0010] In some embodiments, in response to the switching knob being in the locked position, the switching rod, under the action of the switching rod spring, causes the switching hook to couple with the lower plate hook of the lower plate, so that the middle plate and the lower plate are in a locked state, and at the same time, the signal auxiliary contact coupled to the lower plate remains stationary; and when the handle switches between the open position and the closed position, the connecting rod moves with the handle to drive the upper plate to move back and forth, thereby driving the auxiliary contact to switch back and forth between the first auxiliary terminal and the second auxiliary terminal.

[0011] In some embodiments, the component also includes a first trip rod or a second trip rod, and the main circuit includes a first circuit or a second circuit, wherein the first trip rod is coupled to the first circuit and coupled to the middle disk, and the second trip rod is coupled to the second circuit and coupled to the middle disk, wherein when the first circuit or the second circuit fails, the corresponding first trip rod or the second trip rod rotates around a fixed axis to drive the middle disk to rotate, and at the same time drives the switching assembly to decouple the switching hook from the lower disk hook of the lower disk, the positional balance relationship between the connecting rod and the disk assembly changes, the upper disk elastic element releases energy to drive the upper disk to move, thereby driving the auxiliary contact to move, and the lower disk elastic element releases energy to drive the lower disk to move, thereby driving the signal auxiliary contact to move, so that the auxiliary contact switches from contacting the first auxiliary terminal to contacting the second auxiliary terminal and the signal auxiliary contact switches from contacting the first signal terminal to contacting the second signal terminal.

[0012] In some embodiments, as the middle plate, the upper plate and the lower plate move, the shape of the groove formed by the upper plate, the middle plate and the lower plate changes, so that the end of the connecting rod inserted into the groove moves to disengage the locked state, and at the same time, the handle switches from the closing position to the opening position under the elastic action of the handle spring.

[0013] In some embodiments, in response to the switch knob being in the unlocked position, the switch rod is squeezed by the protrusion of the switch knob so that the switch hook is decoupled from the lower plate hook of the lower plate, thereby causing the lower plate and the middle plate to rotate synchronously with the upper plate, wherein when the handle switches between the open position and the closed position, the connecting rod moves with the handle to drive the plate assembly to move back and forth; the upper plate drives the auxiliary contact to rotate around a fixed axis under the action of the upper plate elastic element and the lower plate drives the signal auxiliary contact to rotate around a fixed axis under the action of the lower plate elastic element, so that the auxiliary contact switches back and forth between the first auxiliary terminal and the second auxiliary terminal and the signal auxiliary contact switches back and forth between the first signal terminal and the second signal terminal.

[0014] In some embodiments, the upper disk includes a first rocker arm and a second rocker arm, the first rocker arm and the second rocker arm are spaced apart, the auxiliary contact extends to the space between the first rocker arm and the second rocker arm, and as the upper disk rotates, the corresponding rocker arm contacts the auxiliary contact to drive the auxiliary contact to rotate in a corresponding direction.

[0015] In some embodiments, the electrical device further includes an auxiliary contact spring disposed between the auxiliary contact and the housing, so that when the auxiliary contact rotates past a dead point, the auxiliary contact can quickly move to an extreme position under the action of the auxiliary contact spring, thereby connecting to a corresponding terminal.

[0016] In some embodiments, the lower plate includes a third swing arm and a fourth swing arm, the third swing arm and the fourth swing arm are spaced apart, the signal auxiliary contact extends to the space between the third swing arm and the fourth swing arm, and as the lower plate rotates, the corresponding swing arm contacts the signal auxiliary contact to drive the signal auxiliary contact to rotate in a corresponding direction.

[0017] In some embodiments, the electrical device also includes a signal auxiliary contact spring, which is arranged between the signal auxiliary contact and the housing, so that when the signal auxiliary contact rotates through the dead point, the signal auxiliary contact can move quickly to the extreme position under the action of the signal auxiliary contact spring, thereby connecting to the corresponding terminal.

[0018] In some embodiments, the electrical device also includes an indication assembly, which includes: an indication key, suitable for linear movement along an indication slot and whose end includes a column coupled to the lower disk, wherein in response to the rotation of the lower disk, the indication key can move linearly along the indication slot to extend and protrude from the shell; a test key, suitable for linear movement along the test slot under the action of pressing; and a lever, one end of which is connected to the test key and the other end is coupled to the middle disk, and is suitable for rotating around a fixed axis; wherein in response to the test key being pressed, the lever rotates and drives the middle disk to rotate, and in response to the rotation of the middle disk: through the protruding column cooperating with the middle disk, the switching rod is pushed to rotate when the middle disk rotates, so that the switching hook portion of the switching rod is decoupled from the lower disk hook portion of the lower disk, the positional balance relationship between the connecting rod and the disk assembly changes, and the lower disk elastic element releases energy to drive the lower disk to move, thereby causing the indication key to extend and protrude from the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] In the attached picture:

[0021] Figure 1 A usage scenario of an electrical device according to an exemplary embodiment of the present disclosure is shown;

[0022] Figure 2 A perspective schematic diagram of an electrical device according to an exemplary embodiment of the present disclosure is shown;

[0023] Figure 3 shows an exploded view of an electrical device according to an exemplary embodiment of the present disclosure;

[0024] Figure 4 shows an exploded view of an electrical device according to an exemplary embodiment of the present disclosure;

[0025] Figures 5 to 8 shows the internal plan view of the electrical device in different working states;

[0026] Fig. 9 An exploded schematic diagram of components in an electrical device according to an exemplary embodiment of the present disclosure is shown;

[0027] Fig.10 An exploded schematic diagram of a switching assembly in an electrical device according to an exemplary embodiment of the present disclosure is shown;

[0028] Fig.11 A perspective schematic diagram of a middle disk in an electrical device according to an exemplary embodiment of the present disclosure is shown;

[0029] Fig.12 A partial schematic diagram showing components in an electrical device according to an exemplary embodiment of the present disclosure;

[0030] Fig.13 An exploded schematic diagram showing an indication assembly in an electrical device according to an exemplary embodiment of the present disclosure; and

[0031] Fig.14 A schematic diagram showing the cooperation between a component and a switching lever according to an exemplary embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0032] The principles of the present disclosure will now be described with reference to some example embodiments. It should be understood that these embodiments are described only for illustrative purposes and to help those skilled in the art understand and implement the present disclosure without implying any limitation on the scope of the present disclosure. In addition to the methods described below, the disclosure described herein can be implemented in various ways.

[0033] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0034] References in this disclosure to "one embodiment", "embodiment", "example embodiment", etc. indicate that the described embodiment may include specific features, structures, or characteristics, but not every embodiment must include the specific features, structures, or characteristics. In addition, these phrases do not necessarily refer to the same embodiment. In addition, when specific features, structures, or characteristics are described in conjunction with an embodiment, those skilled in the art believe that it is within the knowledge of those skilled in the art to apply such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0035] It should be understood that although the terms "first" and "second", etc. may be used to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the exemplary embodiments. The term "and / or" as used herein includes any and all combinations of one or more of the listed terms.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "opened", "installed", "connected", "connected", and "coupled" 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 indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The terms used herein are only used for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments. As used herein, the singular forms "a", "an", and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "comprise", "include", "have", "have", "include" and / or "include" when used herein, indicate the presence of the features, elements and / or components, etc., but do not exclude the presence or addition of one or more other features, elements, components and / or combinations thereof.

[0038] The embodiment of the present disclosure provides an electrical device. Figures 1 to 14 Detailed description will be given of a schematic structure of an electrical device according to an embodiment of the present disclosure.

[0039] Figure 1 The use scenario of the electrical device 1 according to the embodiment of the present disclosure is shown. As shown, the electrical device 1 can be used in conjunction with the miniature circuit breaker 1' and used as an accessory of the miniature circuit breaker 1'. The change of the working state of the miniature circuit breaker 1' will cause the working state of the electrical device 1 to change, which will be described in detail below. It should be noted that Figure 1 The scenes shown are merely illustrative. In other embodiments, the electrical device 1 may also be used in conjunction with other devices, and its applicable scenes are not limited by the embodiments of the present disclosure. The electrical device 1 may be used in a home environment or in an industrial scene, and the embodiments of the present disclosure do not limit this.

[0040] Figure 2 A perspective schematic diagram of an electrical device 1 according to an embodiment of the present disclosure is shown. Figure 3-Figure 4 Shows Figure 2The exploded view of the electrical device 1 shown in FIG. 1 includes a housing 40 on the outside thereof, which is used to protect the internal parts from external influences. Figure 4 As shown, the electrical device 1 is provided with a plurality of terminals, such as a first auxiliary terminal 111, a second auxiliary terminal 112, a third auxiliary terminal 113, a first signal terminal 115, a second signal terminal 114, and a third signal terminal 116. These terminals are fixedly arranged on the housing 40. Figure 4 As shown, the electrical device 1 further includes an auxiliary contact 107 and a signal auxiliary contact 108. These contacts are arranged inside the housing 40 and can rotate around their axis. By rotating the auxiliary contact 107, its end contact 1071 contacts different terminals among the first auxiliary terminal 111, the second auxiliary terminal 112, and the third auxiliary terminal 113 to achieve corresponding signal indications. Similarly, by rotating the signal auxiliary contact 108, its end contact 1081 contacts different terminals among the first signal terminal 115, the second signal terminal 114, and the third signal terminal 116 to achieve corresponding signal indications. This will be described in detail below.

[0041] Figures 5 to 8 1 shows an internal plan view of the electrical device 1 in different working states. Figure 5 As shown, the electrical device 1 includes a handle 104, which is connected to the handle of the switch of the main circuit used by the electrical device 1, and at least a part of the handle 104 is exposed outside the housing 40. The main circuit may include a miniature circuit breaker, a leakage protector and other switch that can connect, carry and disconnect the current circuit. Figure 1 ,by Figure 1 The miniature circuit breaker 1' in the example is used for explanation. The opening and closing of the switch handle 2' of the main circuit can control the handle 104 of the electrical device 1, thereby controlling the opening and closing of the electrical device 1. For example, when the user needs to maintain or replace the electrical load connected to the main circuit and needs to disconnect the main circuit or when the main circuit fails, the switch handle 2' of the main circuit is opened to disconnect the current loop connected to the main circuit. Accordingly, the handle 104 connected to the switch handle 2' of the main circuit is also in the opening position (for example, along the Figure 5 When the replacement is completed or the fault is cleared, the user can drive the switch handle 2' of the main circuit to the closed state, and accordingly, the handle 104 (for example, along the direction of the clockwise rotation) connected to the switch handle 2' of the main circuit is turned off. Figure 5 In addition, if a fault occurs in the main circuit, the handle 104 will also automatically rotate from the closing position (for example, along the clockwise direction) along with the switch handle 2' of the main circuit. Figure 5 counterclockwise in the direction of the switch) to the open position, thereby indicating a fault condition on the main circuit.

[0042] like Figure 5 As shown, the electrical device 1 comprises an assembly 10 , and the assembly 10 comprises a tray assembly 100 consisting of an upper tray 101 , a middle tray 102 , and a lower tray 103 . Fig. 9 FIG. 1 shows an exploded schematic view of the assembly 10. Fig. 9 It can be seen that the disk assembly 100 (i.e., the upper disk 101, the middle disk 102, and the lower disk 103) can rotate around the same axis. The assembly 10 also includes a connecting rod 105, one end 1051 of which is connected to the socket 1045 of the handle 104, and the other end is inserted into the groove formed by the upper disk 101, the middle disk 102, and the lower disk 103.

[0043] like Fig. 9 As shown, the upper plate 101 includes a first swing rod 1011 and a second swing rod 1012, the first swing rod 1011 and the second swing rod 1012 are spaced apart, and the auxiliary contact 107 extends to the space between the first swing rod 1011 and the second swing rod 1012. As the upper plate 101 rotates, the corresponding swing rod contacts the auxiliary contact 107 to drive the auxiliary contact 107 to rotate in the corresponding direction. In other words, the swing of the auxiliary contact 107 can be controlled by the rotation of the upper plate 101. Figure 5 The swing of the contact 107 can cause the contact point 1071 to switch back and forth between the first auxiliary terminal 111 and the second auxiliary terminal 112 .

[0044] Continue to refer Fig. 9 , a middle plate groove 1023 is provided on the middle plate 102, and the lower plate 103 includes a lower plate boss 1032 that can be inserted into the middle plate groove 1023. A middle plate spring 1025 is also provided near the middle plate 102, and a lower plate spring 1035 is provided on the lower plate 103. Under the action of the corresponding elastic element, and because the lower plate boss 1032 is inserted into the middle plate groove 1023, the middle plate 102 and the lower plate 103 can be rotated or locked synchronously. When the middle plate 102 and the lower plate 103 are in a locked state, the upper plate 101 rotates independently under the drive of the handle 104 and the connecting rod 105. When the middle plate 102 and the lower plate 103 are in an unlocked state, the upper plate 101, the middle plate 102 and the lower plate 103 rotate synchronously under the drive of the handle 104 and the connecting rod 105.

[0045] like Fig. 9 As shown, the lower plate 103 includes a third swing rod 1033 and a fourth swing rod 1034, the third swing rod 1033 and the fourth swing rod 1034 are spaced apart, the signal auxiliary contact 108 extends to the space between the third swing rod 1033 and the fourth swing rod 1034, and as the lower plate 103 rotates, the corresponding swing rod contacts the signal auxiliary contact 108 to drive the signal auxiliary contact 108 to rotate in the corresponding direction. In other words, the swing of the signal auxiliary contact 108 can be controlled by the rotation of the lower plate 103. Figure 5 The swinging of the contact 108 can cause the contact point 1081 to switch back and forth between contacting the first signal terminal 115 and the second signal terminal 114 .

[0046] When the handle 104 is moved from the off position (e.g. Figure 5 When the switch is switched to the closing position (clockwise in the direction of rotation), the connecting rod 105 moves with the handle 104 to drive the disk assembly 100 to move counterclockwise, thereby driving the auxiliary contact 107 to rotate clockwise to move from the second auxiliary terminal 112 to the first auxiliary terminal 111, and driving the signal auxiliary contact 108 to rotate clockwise to move from the second signal terminal 114 to the first signal terminal 115.

[0047] When the handle 104 is moved from the closing position (e.g. Figure 5 When the handle 104 is switched to the opening position (counterclockwise in the middle), the connecting rod 105 moves with the handle 104 to drive the disk assembly 100 to move clockwise, thereby driving the auxiliary contact 107 to rotate counterclockwise to move from the first auxiliary terminal 111 to the second auxiliary terminal 112, and driving the signal auxiliary contact 108 to rotate counterclockwise to move from the first signal terminal 115 to the second signal terminal 114.

[0048] like Figure 5 As shown, the electrical device 1 further comprises a switching assembly 20 . Fig.10 FIG. 2 shows an exploded schematic diagram of the switching assembly 20. Fig.10 As shown, the switching assembly 20 generally includes: a switching knob 201, a switching rod 202 and a switching rod spring 205. The end of the switching rod 202 has a switching hook 203. Fig. 9 The switch hook 203 can be hooked on the lower plate hook 1031 of the lower plate 103 or can be disengaged from the lower plate hook 1031, depending on the position of the switch knob 201. The switch knob 201 can be rotated between the locked position and the unlocked position under the driving action of the user. For example, Figure 5 and Figure 6 The switch knob 201 is shown in the locked position. Figure 7 The switch knob 201 is shown in the unlocked position. According to the embodiment of the present disclosure, the switch assembly 20 is independently fixed on the housing 40, which can avoid the influence of the vibration caused by the overall movement of the mechanism on the switch rod 202 to the greatest extent.

[0049] refer to Figure 5 and Figure 6 Combined with Fig. 9When the switch knob 201 is in the locked position, since the switch rod spring 205 is disposed between the housing 40 and the switch rod 202, its elastic force can cause the switch rod 202 to move toward the left direction in the figure, so that the switch hook 203 remains coupled with the lower plate hook 1031 of the lower plate 103. As a result, the lower plate 103 is hooked by the switch rod 202 to be in a locked state, so that the signal auxiliary contact 108 coupled to the lower plate 103 remains stationary.

[0050] refer to Figure 7 Combined with Fig. 9 When the switch knob 201 is in the unlocked position, the switch rod 202 is squeezed by the protrusion 204 of the switch knob 201, so that the switch hook 203 is decoupled from the lower plate hook 1031 of the lower plate 103, so that the lower plate 103 and the middle plate 102 rotate synchronously with the upper plate 103.

[0051] Return to reference Fig. 9 , the assembly 10 may further include a first trip rod 121. The first trip rod 121 is disposed on the housing 40 via its rotation axis 1210 and can rotate around the rotation axis 1210. The main circuit includes a first circuit, and the first trip rod 121 is coupled to the first circuit through a connecting rod 1211 and is coupled to the middle disk 102. The assembly 10 may further include a second trip rod 122. The second trip rod 122 is disposed on the housing 40 via its rotation axis 1220 and can rotate around the rotation axis 1220. The main circuit includes a second circuit, and the second trip rod 122 is coupled to the second circuit through a connecting rod 1221 and is coupled to the middle disk 102. Although in Fig. 9 In the embodiment shown, both the first tripping rod 121 and the second tripping rod 122 are provided, but only one of them may be provided. Fig. 9 The illustrated embodiment is provided with both the first tripping rod 121 and the second tripping rod 122 , but in a specific usage scenario, only one tripping rod will be effective.

[0052] Fig.11 1 shows a three-dimensional schematic diagram of the middle plate 102. As shown, the middle plate 102 is provided with a first driving part 1027 and a second driving part 1028, which are used to cooperate with the first tripping rod 121 and the second tripping rod 122 respectively. When the first circuit fails, the first tripping rod 121 rotates due to tripping, and the middle plate 102 is driven to rotate around its axis 1029 through the first driving part 1027. Alternatively, when the second circuit fails, the second tripping rod 122 rotates due to tripping, and the middle plate 102 is also driven to rotate around its axis 1029 through the second driving part 1028.

[0053] When the switch knob 201 is in the locked position, if the first circuit or the second circuit fails, the corresponding first trip rod 121 or the second trip rod 122 rotates around the fixed axis to drive the middle disk 102 to rotate around the middle disk axis 1029, and at the same time drives the switching assembly 20 to decouple the switching hook 203 from the lower disk hook 1031 of the lower disk 103, the position balance relationship between the connecting rod 105 and the disk assembly 100 changes, the upper disk elastic element 1015 releases energy to drive the upper disk 101 to move, thereby driving the auxiliary contact 107 to move, and the lower disk elastic element 1035 releases energy to drive the lower disk 103 to move, thereby driving the signal auxiliary contact 108 to move, so that the auxiliary contact 107 switches from contacting the first auxiliary terminal 111 to contacting the second auxiliary terminal 112 and the signal auxiliary contact 108 switches from contacting the first signal terminal 115 to contacting the second signal terminal 114.

[0054] Fig.12 A schematic diagram of the assembly 10 is shown, in combination with Fig. 9 To illustrate how the balance relationship between the positions of the connecting rod 105 and the disk assembly 100 changes, in the illustrated embodiment, since the groove 106 into which one end of the connecting rod 105 is inserted is formed by the upper disk 101, the middle disk 102 and the lower disk 103, if the upper disk 101, the middle disk 102 and the lower disk 103 move, the shape of the groove 106 will change accordingly, which will cause the end of the connecting rod 105 inserted in the groove 106 to move out of the balance state, and at the same time, the handle 104 is switched from the closing position to the opening position under the elastic action of the handle spring 1041.

[0055] When the switch knob 201 is in the unlocked position, the switch rod 202 is squeezed by the protrusion 204 of the switch knob 201, so that the switch hook 203 is decoupled from the lower plate hook 1031 of the lower plate 103, so that the lower plate 103 and the middle plate 102 rotate synchronously with the upper plate 103. At this time, when the handle 104 switches between the opening position and the closing position, as mentioned above, the handle 104 drives the movement of the upper plate 101 and the lower plate 103 through the transmission of the connecting rod 105. The upper plate 101 drives the auxiliary contact 107 to rotate around the fixed axis under the action of the upper plate elastic element 1015, and the lower plate 103 drives the signal auxiliary contact 108 to rotate around the fixed axis under the action of the lower plate elastic element 1035, so that the auxiliary contact 107 switches back and forth between the first auxiliary terminal 111 and the second auxiliary terminal 112 and the signal auxiliary contact 108 switches back and forth between the first signal terminal 115 and the second signal terminal 114.

[0056] When the switch knob 201 is in the unlocked position, when a fault occurs in the main circuit, the first tripping rod 121 or the second tripping rod 122 drives the middle disk 102 to rotate around the middle disk axis 1029. The positional balance relationship between the connecting rod 105 and the disk assembly 100 changes, and the upper disk 101 drives the auxiliary contact 107 to rotate around the fixed axis under the action of the upper disk elastic element 1015, and the lower disk 103 drives the signal auxiliary contact 108 to rotate around the fixed axis under the action of the lower disk elastic element 1035, so that the auxiliary contact 107 switches back and forth between the first auxiliary terminal 111 and the second auxiliary terminal 112, and the signal auxiliary contact 108 switches back and forth between the first signal terminal 115 and the second signal terminal 114.

[0057] Continue to refer Figure 5 ,like Figure 5 As shown, the auxiliary contact spring 1072 is arranged between the auxiliary contact 107 and the housing 40, and the installation angle of the auxiliary contact spring 1072 enables the auxiliary contact 107 to quickly move to the extreme position under the action of the auxiliary contact spring 1072 after the auxiliary contact 107 rotates through the dead point, thereby quickly connecting to the corresponding terminal.

[0058] Continue to refer Figure 5 The signal auxiliary contact spring 1082 is arranged between the signal auxiliary contact 108 and the housing 40, and the installation angle of the signal auxiliary contact spring 1082 enables the signal auxiliary contact 108 to quickly move to the extreme position under the action of the signal auxiliary contact spring 1082 after the signal auxiliary contact 108 rotates through the dead point, thereby quickly connecting to the corresponding terminal.

[0059] As a result, there is an initial gap between the upper plate 101 and the lower plate 103 and the auxiliary contact 107 and the signal auxiliary contact 108, which results in that the disturbance of the component 10 and other functional mechanisms, such as the switching component 20 and the indicating component 30, will not affect the connection between the contacts and the terminals, and thus will not affect the contact pressure between the moving and static contacts, and the electrical circuit and electrical life composed of the moving and static contacts remain stable, thereby enhancing the reliability of the electrical device 1. Only when the handle 104 is rotated to a certain angle, the auxiliary contact 107 and the signal auxiliary contact 108 will turn themselves under the action of the auxiliary contact spring 1072 and the signal auxiliary contact spring 1082, so that the contacts are in contact with the corresponding terminals.

[0060] In some embodiments, the electrical device 1 further includes an indication component 30 . Fig.13 30 shows an exploded schematic diagram of the indication assembly 30. As shown, the indication assembly 30 generally includes an indication key 301, a test key 302 and a lever 303. Figure 5, the indicator key 301 can move linearly along the indicator slot 401, and the end of the indicator key 301 includes a column 3011 coupled to the lower plate 103. As the lower plate 103 rotates clockwise, the indicator key 301 can move linearly along the indicator slot 401 to extend out of the housing 40, so that the user can observe the state of the electrical device 1 from the outside.

[0061] Fig.14 A schematic diagram showing the cooperation between the assembly 10 and the switch lever 202 is shown. As shown in the figure, a protruding post 2022 is provided on the switch lever 202 for cooperating with the middle plate 102 .

[0062] Combined with reference Figure 5 and Fig.13 , the test key 302 can move linearly along the test slide slot 402 under the action of the user's pressing. One end of the lever 303 is connected to the test key 302, and the other end is coupled to the middle disk 102, and is suitable for rotating around a fixed axis. When the test key 302 is pressed, the lever 303 rotates and drives the middle disk 102 to rotate. In response to the rotation of the middle disk 102: through the protrusion 2022 that cooperates with the middle disk 102, the middle disk 102 rotates to push the switch rod 202 to rotate, so that the switch hook 203 of the switch rod 202 is decoupled from the lower disk hook 1031 of the lower disk 103. The positional balance relationship between the connecting rod 105 and the disk assembly 100 changes, and the lower disk elastic element 1035 releases energy to drive the lower disk 103 to move, so that the indicator key 301 extends out of the housing 40. As a result, the user can understand the internal situation of the electrical device 1 by observing the state of the indicator key 301 from the outside.

[0063] The working process of the electrical device 1 according to the embodiment of the present disclosure is described below.

[0064] When the switch knob 201 is in a locked state (a horizontal position in the embodiment of the present disclosure), the switch knob 201 does not constrain the switch rod 202, so that the switch rod 202 can be away from the housing 40 of the electrical device 1 under the elastic action of the switch rod spring 205. Therefore, the switch hook 203 on the switch rod 202 can cooperate with the lower plate hook 1031 of the lower plate 103.

[0065] When the handle 104 moves from the opening position to the closing position, in one embodiment, if the handle 104 moves to the closing position for the first time, the connecting rod 105 moves to the left, and as the connecting rod 105 moves to the left, the upper plate 101 moves, so that the auxiliary contact 107 moves, switching from the second auxiliary terminal 112 to the first auxiliary terminal 111, thereby causing a signal change on the auxiliary side. At this time, since the lower plate 103 also moves with the upper plate 101, the signal auxiliary contact 108 coupled to the lower plate 103 moves and causes a state switch, switching from the second signal terminal 114 to the first signal terminal 115.

[0066] When the handle 104 moves from the opening position to the closing position, in another embodiment, if the handle 104 moves to the closing position again, the connecting rod 105 moves to the left. At this time, since the lower plate 103 is hooked by the switching hook 203 of the switching rod 202, the lower plate 103 does not move. As the connecting rod 105 moves to the left, the connecting rod 105 acts on the upper plate 101, causing the upper plate 101 to move, thereby causing the auxiliary contact 107 to move, switching from the second auxiliary terminal 112 to the first auxiliary terminal 111, thereby causing a change in the signal on the auxiliary side. At this time, since the lower plate 103 does not move, the signal auxiliary contact 108 coupled to the lower plate 103 does not move, and thus no state switching occurs.

[0067] On the contrary, when the handle 104 moves from the closing position to the opening position, the connecting rod 105 moves to the right. At this time, since the lower plate 103 is hooked by the switching hook 203 of the switching rod 202, the lower plate 103 does not move. As the connecting rod 105 moves to the right, the upper plate 101 moves under the action of the elastic element, so that the auxiliary contact 107 moves and switches from the first auxiliary terminal 111 to the second auxiliary terminal 112, thereby causing a change in the signal on the auxiliary side. At this time, since the lower plate 103 does not move, the signal auxiliary contact 108 coupled to the lower plate 103 does not move, and thus no state switching occurs.

[0068] When the handle 104 is in the closing position, if the first circuit fails, the first tripping rod 121 moves, thereby pushing the middle plate 102 to rotate around its axis 1029 through the first driving part 1027 on the middle plate 102. At the same time, the movement of the first tripping rod 121 will also push the switching rod 202 away, and the switching rod 202 moves toward the housing 40 by overcoming the elastic force of the switching rod spring 205, thereby causing the switching hook 203 on the switching rod 202 to disengage from the lower plate hook 1031 of the lower plate 103. At this time, the lower plate 103 is no longer restricted by the switching rod 202, but can be driven by the lower plate elastic element 1035 through the middle plate groove 1023 and the lower plate boss 1032 located in the middle plate groove 1023 so that the middle plate 102 and the lower plate 103 move together. At the same time, the upper plate 101 moves under the drive of the upper plate elastic element 1015. Then, the handle 104 is switched from the closing position to the opening position under the elastic action of the handle spring 1041 .

[0069] Similarly, if the second circuit fails at this time, the second tripping rod 122 moves, thereby pushing the middle disk 102 to rotate around its axis 1029 through the second driving part 1028 on the middle disk 102. At the same time, the movement of the second tripping rod 122 will also push the switching rod 202 away, and the switching rod 202 moves toward the housing 40 by overcoming the elastic force of the switching rod spring 205, thereby causing the switching hook 203 on the switching rod 202 to disengage from the lower disk hook 1031 of the lower disk 103. At this time, the lower disk 103 is no longer restricted by the switching rod 202, but can be driven by the lower disk elastic element 1035 through the middle disk groove 1023 and the lower disk protrusion 1032 located in the middle disk groove 1023 so that the middle disk 102 and the lower disk 103 move together. At the same time, the upper disk 101 moves under the drive of the upper disk elastic element 1015. Then, the handle 104 is switched from the closing position to the opening position under the elastic action of the handle spring 1041.

[0070] When the switch knob 201 is in the unlocked state (vertical position in the embodiment of the present disclosure), the switch knob 201 presses the switch rod 202, so that the switch rod 202 can overcome the elastic effect of the switch rod spring 205, and the switch assembly 20 is in a static state. There is no force between the switch assembly 20 and the first trip rod 121 and the second trip rod 122. As a result, the switch hook 203 on the switch rod 202 can be disengaged from the lower plate hook 1031 of the lower plate 103, so that the lower plate 103 will never be hooked.

[0071] When the handle 104 moves from the open position to the closed position, the connecting rod 105 moves to the left. At this time, since the lower plate 103 is not hooked by the switching hook 203 of the switching rod 202, the lower plate 103 will not be restricted by the switching rod 202. As the connecting rod 105 moves to the left, the upper plate 101 moves, so that the auxiliary contact 107 moves, switching from the second auxiliary terminal 112 to the first auxiliary terminal 111, thereby causing a signal change on the auxiliary side. At this time, since the lower plate 103 also moves with the upper plate 101, the signal auxiliary contact 108 coupled to the lower plate 103 moves, resulting in a state switch, switching from the second signal terminal 114 to the first signal terminal 115.

[0072] On the contrary, when the handle 104 moves from the closing position to the opening position, the connecting rod 105 moves to the right. At this time, since the lower plate 103 is not hooked by the switching hook 203 of the switching rod 202, the lower plate 103 will not be restricted by the switching rod 202. As the connecting rod 105 moves to the right, the upper plate 101 moves, so that the auxiliary contact 107 moves, switching from the first auxiliary terminal 111 to the second auxiliary terminal 112, thereby causing a change in the signal on the auxiliary side. At this time, since the lower plate 103 also moves with the upper plate 101, the signal auxiliary contact 108 coupled to the lower plate 103 moves, resulting in a state switch, switching from the first signal terminal 115 to the second signal terminal 114.

[0073] When the handle 104 is in the closing position, if the first circuit fails, the first tripping rod 121 moves, thereby pushing the middle plate 102 to rotate around its axis. At this time, the lower plate 103 is no longer restricted by the switching rod 202, but can be driven by the lower plate elastic element 1035 through the middle plate groove 1023 and the lower plate boss 1032 located in the middle plate groove 1023 so that the middle plate 102 and the lower plate 103 move together. At the same time, the upper plate 101 moves under the drive of the upper plate elastic element 1015. Then the handle 104 is switched from the closing position to the opening position under the elastic action of the handle spring 1041.

[0074] Similarly, if the second circuit fails at this time, the second tripping rod 122 moves, thereby pushing the middle disk 102 to rotate around its axis 1029 via the second driving portion 1028 on the middle disk 102. At this time, the lower disk 103 is no longer restricted by the switching rod 202, but can move together with the lower disk 103 through the middle disk groove 1023 and the lower disk boss 1032 located in the middle disk groove 1023 under the drive of the lower disk elastic element 1035. At the same time, the upper disk 101 moves under the drive of the upper disk elastic element 1015. Then the handle 104 is switched from the closing position to the opening position under the elastic action of the handle spring 1041.

[0075] Compared with the existing solutions, the electrical device 1 according to the embodiment of the present disclosure has a shorter movement dimension chain, a simple structure, and is stable and reliable. In addition, the three coaxially stacked upper discs 101, middle discs 102, and lower discs 103 make the control more diversified. With the switching of the switching knob 201, two different functions, signal / auxiliary function and auxiliary / auxiliary function, can be realized. In addition, the three-disc stacking arrangement can also save space, making the electrical device 1 more compact as a whole.

[0076] Although the embodiments of the present invention are described above in specific scenarios, it should be understood that the embodiments of the present invention can also be used in other scenarios and systems without departing from the concept of the present disclosure. Such embodiments also fall within the scope of the present invention.

[0077] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An electrical device (1), comprising: An assembly (10) comprising: A disk assembly (100), the disk assembly (100) comprising an upper disk (101), a middle disk (102) and a lower disk (103) that are rotatable around the same axis; A handle (104) switchable between an open position and a closed position; and A connecting rod (105) has one end connected to the handle (104) and the other end inserted into a groove (106) formed by the upper plate (101), the middle plate (102) and the lower plate (103).

2. The electrical device (1) according to claim 1, wherein: When the middle plate (102) and the lower plate (103) are in a locked state, the upper plate (101) rotates independently under the drive of the handle (104) and the connecting rod (105); and When the middle plate (102) and the lower plate (103) are in an unlocked state, the upper plate (101), the middle plate (102) and the lower plate (103) rotate synchronously under the drive of the handle (104) and the connecting rod (105).

3. The electrical device (1) according to claim 2, wherein a middle plate groove (1023) is provided on the middle plate (102), and the lower plate (103) includes a lower plate boss (1032) capable of being inserted into the middle plate groove (1023), and the middle plate (102) and the lower plate (103) rotate synchronously or lock under the action of a middle plate spring (1025).

4. The electrical device (1) according to claim 2, further comprising a switching component (20), wherein the switching component (20) comprises: A switching knob (201), wherein the switching knob (201) is rotatable between a locking position and an unlocking position; A switching rod (202), the end of which has a switching hook (203); as well as The switch lever spring (205) is arranged between the housing (40) and the switch lever (202).

5. The electrical device (1) according to claim 4, wherein in response to the switching knob (201) being in the locked position, the switching lever (202) causes the switching hook (203) to couple with the lower plate hook (1031) of the lower plate (103) under the action of the switching lever spring (205), so that the middle plate (102) and the lower plate (103) are in a locked state, and at the same time, the signal auxiliary contact (108) coupled to the lower plate (103) remains stationary; and When the handle (104) switches between the open position and the closed position, the connecting rod (105) moves with the handle (104) to drive the upper plate (101) to move back and forth, thereby driving the auxiliary contact (107) to switch back and forth between the first auxiliary terminal (111) and the second auxiliary terminal (112).

6. The electrical device (1) according to claim 5, wherein the component (10) further comprises a first tripping rod (121) or a second tripping rod (122), the main circuit comprises a first circuit or a second circuit, wherein the first tripping rod (121) is coupled to the first circuit and coupled to the middle disk (102), and the second tripping rod (122) is coupled to the second circuit and coupled to the middle disk (102), When the first circuit or the second circuit fails, the corresponding first tripping rod (121) or the second tripping rod (122) rotates around a fixed axis to drive the middle disk (102) to rotate, and at the same time drives the switching assembly (20) to decouple the switching hook (203) from the lower disk hook (1031) of the lower disk (103), the positional balance relationship between the connecting rod (105) and the disk assembly (100) changes, and the upper disk elastic element (1015) releases energy. The upper plate (101) is driven to move, thereby driving the auxiliary contact (107) to move, and the lower plate elastic element (1035) releases energy to drive the lower plate (103) to move, thereby driving the signal auxiliary contact (108) to move, so that the auxiliary contact (107) switches from contacting the first auxiliary terminal (111) to contacting the second auxiliary terminal (112) and the signal auxiliary contact (108) switches from contacting the first signal terminal (115) to contacting the second signal terminal (114).

7. The electrical device (1) according to claim 6, wherein: As the middle plate (102), the upper plate (101) and the lower plate (103) move, the shape of the groove (106) formed by the upper plate (101), the middle plate (102) and the lower plate (103) changes, so that the end of the connecting rod (105) inserted into the groove (106) moves to disengage the locked state, and at the same time, the handle (104) switches from the closing position to the opening position under the elastic action of the handle spring (1041).

8. The electrical device (1) according to claim 5, wherein in response to the switching knob (201) being in the unlocked position, the switching rod (202) is squeezed by the protrusion (204) of the switching knob (201), so that the switching hook (203) is decoupled from the lower plate hook (1031) of the lower plate (103), so that the lower plate (103) and the middle plate (102) rotate synchronously with the upper plate (101), When the handle (104) switches between the opening position and the closing position, the connecting rod (105) moves with the handle (104) to drive the disk assembly (100) to move back and forth; The upper disk (101) drives the auxiliary contact (107) to rotate around a fixed axis under the action of the upper disk elastic element (1015), and the lower disk (103) drives the signal auxiliary contact (108) to rotate around a fixed axis under the action of the lower disk elastic element (1035), so that the auxiliary contact (107) switches back and forth between the first auxiliary terminal (111) and the second auxiliary terminal (112), and the signal auxiliary contact (108) switches back and forth between the first signal terminal (115) and the second signal terminal (114).

9. The electrical device (1) according to claim 1, wherein the upper plate (101) comprises a first swing rod (1011) and a second swing rod (1012), the first swing rod (1011) and the second swing rod (1012) are spaced apart, the auxiliary contact (107) extends to the space between the first swing rod (1011) and the second swing rod (1012), and as the upper plate (101) rotates, the corresponding swing rod contacts the auxiliary contact (107) to drive the auxiliary contact (107) to rotate in the corresponding direction, The electrical device (1) further comprises an auxiliary contact spring (1072) arranged between the auxiliary contact (107) and the housing (40), so that when the auxiliary contact (107) rotates past a dead point, the auxiliary contact (107) can quickly move to an extreme position under the action of the auxiliary contact spring (1072), thereby connecting to a corresponding terminal. The lower plate (103) includes a third swing rod (1033) and a fourth swing rod (1034), the third swing rod (1033) and the fourth swing rod (1034) are spaced apart, the signal auxiliary contact (108) extends to the space between the third swing rod (1033) and the fourth swing rod (1034), and as the lower plate (103) rotates, the corresponding swing rod contacts the signal auxiliary contact (108) to drive the signal auxiliary contact (108) to rotate in a corresponding direction. The electrical device (1) further comprises a signal auxiliary contact spring (1082) which is arranged between the signal auxiliary contact (108) and the housing (40), so that when the signal auxiliary contact (108) rotates through a dead point, the signal auxiliary contact (108) can quickly move to an extreme position under the action of the signal auxiliary contact spring (1082), thereby connecting to a corresponding terminal.

10. The electrical device (1) according to claim 1, further comprising an indication component (30), wherein the indication component (30) comprises: an indicator key (301) adapted to move linearly along the indicator slot (401) and having an end portion thereof comprising a column (3011) coupled to the lower plate (103), wherein in response to the rotation of the lower plate (103), the indicator key (301) is capable of moving linearly along the indicator slot (401) to extend and protrude from the housing (40); A test key (302) adapted to move linearly along the test slide slot (402) when pressed; as well as A lever (303), one end of which is connected to the test key (302), the other end of which is coupled to the middle plate (102), and is suitable for rotating around a fixed axis; In response to the test key (302) being pressed, the lever (303) rotates and drives the middle disk (102) to rotate, and in response to the rotation of the middle disk (102): By means of a protruding column (2022) cooperating with the middle plate (102), the middle plate (102) pushes the switching rod (202) to rotate when the middle plate (102) rotates, so that the switching hook portion (203) of the switching rod (202) is decoupled from the lower plate hook portion (1031) of the lower plate (103). The positional balance relationship between the connecting rod (105) and the disk assembly (100) changes, and the lower disk elastic element (1035) releases energy to drive the lower disk (103) to move, thereby causing the indicator key (301) to extend out of the housing (40).

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