Switch state detection device

Abstract

The utility model discloses a switch state detection device, which comprises a linkage piece, wherein one end of the linkage piece penetrates through a base and is matched with an operating mechanism; or one end of the linkage piece penetrates through the base and is matched with the moving contact; the microswitch is connected with the bottom surface of the base; the other end of the linkage piece moves to realize the action of a driving part of the microswitch; the microswitch is installed on the bottom face of the base, the lower installation effect is formed, the microswitch is separated from an internal circuit, the insulation effect is improved, the microswitch is more convenient to install, and the switch state can be better detected.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to a device for detecting switch status. Background Technology

[0002] A switch, specifically a circuit breaker, typically contains a microswitch. The microswitch is used to detect the overall status of the circuit breaker, such as whether it is open or closed. The microswitch operates by cooperating with a rotating shaft in its operating mechanism and a corresponding linkage element, thereby transmitting a signal.

[0003] In existing technologies, the fixed positions of micro switches vary, for example:

[0004] 1. The micro switch is installed in the rear area of ​​the circuit breaker. This area was originally the location of the thermal protection mechanism. If the micro switch is installed in this area, it will occupy the space of the thermal protection mechanism.

[0005] 2. The micro switch is mounted on the middle cover, and various modules will be installed on top of the middle cover. If the micro switch is installed on the middle cover, it will occupy the module space.

[0006] 3. The micro switch is installed inside the base. Since the moving contact component and the stationary contact component are fixed inside the cavity between the base and the middle cover, both of which are high voltage, the micro switch needs to be insulated from the high voltage. There is a problem of poor insulation effect, which affects the normal use of the micro switch. Utility Model Content

[0007] Therefore, the technical problem to be solved by this utility model is how to improve the protective effect of the moving contact. To this end, a device for detecting switch status includes,

[0008] A linkage component, one end of which passes through the base and engages with the operating mechanism; or, one end of which passes through the base and engages with the moving contact.

[0009] A micro switch is connected to the bottom surface of the base, and the movement of the other end of the linkage realizes the action of the driving part of the micro switch.

[0010] It also includes a rotor, which is connected to the bottom surface of the base and rotates relative to the base. The long side of the micro switch is in contact with the bottom surface of the base. The other end of the linkage is linked to the rotor. The driving part of the micro switch is located on the rotation trajectory of the rotor.

[0011] The base is provided with a guide hole, the linkage passes through the guide hole, and the linkage slides relative to the guide hole.

[0012] One of the rotor and the base is provided with a rotating shaft, and the other of the rotor and the base is provided with a rotating hole that cooperates with the rotating shaft.

[0013] It also includes an elastic element, which stores or releases energy when the rotor rotates.

[0014] The base has a cavity on its bottom surface, which opens downwards. The linkage, the rotor, the micro switch, and the elastic element are housed in the cavity. One end of the elastic element abuts against the rotor, and the other end of the elastic element abuts against the inner wall of the cavity.

[0015] The rotor is provided with a positioning post, and one end of the elastic element is sleeved on the positioning post.

[0016] The rotor is provided with a protrusion, and the drive unit cooperates with the protrusion.

[0017] The rotor and the linkage are integrally formed.

[0018] The technical solution of this utility model has the following advantages:

[0019] 1. This utility model provides a device for detecting switch status. By mounting a micro switch on the bottom surface of a base, a bottom-mounted effect is achieved. The micro switch is isolated from the internal circuitry, improving insulation. Furthermore, the micro switch is easier to install and can better detect switch status. The linkage can cooperate with the operating mechanism, for example, the linkage can cooperate with the rotating shaft of the operating mechanism. The linkage can also cooperate with a moving contact, with the moving contact driving the linkage during rotation.

[0020] 2. This utility model provides a device for detecting switch status. The position of the micro switch is limited to a horizontal mounting effect, which can greatly reduce the height occupied by the micro switch in the overall switch, thus reducing the overall switch height. Secondly, the drive effect of the micro switch is formed by the rotation of the rotor, making the drive more stable. In addition, the micro switch can also be installed vertically.

[0021] 3. The present invention provides a device for detecting switch status, wherein the guide hole and the linkage component cooperate to form a guiding effect, and the linkage component can move along the guide hole.

[0022] 4. The present invention provides a device for detecting switch status, wherein the rotating shaft and the rotating hole cooperate to form the rotation effect of a rotor.

[0023] 5. This utility model provides a device for detecting switch status, in which the elastic element serves as an auxiliary reset mechanism. The microswitch itself has a reset function, enabling the drive unit to reset; the elastic element provides auxiliary reset, thus improving the reset speed.

[0024] 6. The present invention provides a device for detecting switch status, wherein the chamber is designed to create an embedded effect, resulting in a concealed and fixed structure. It also includes a base plate, which mates with the bottom surface of the base to seal the chamber.

[0025] 7. The device for detecting switch status provided by this utility model has a positioning post that allows for better fixation of the elastic element and makes the installation of the elastic element more convenient.

[0026] 8. The switch status detection device provided by this utility model adopts an integrated design, making processing more convenient. Alternatively, the rotor and the linkage can be set independently and then linked together to achieve interlocking. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the circuit breaker provided by this utility model;

[0029] Figure 2 for Figure 1 A bottom view;

[0030] Figure 3 A cross-sectional view of the circuit breaker provided by this utility model;

[0031] Figure 4 A schematic diagram of the rotor provided by this utility model;

[0032] Figure 5 A schematic diagram of another embodiment of the rotor, elastic element, and micro switch provided by this utility model;

[0033] Figure 6 A schematic diagram of the structure of the base provided by this utility model;

[0034] Figure 7 A partial cross-sectional view of another embodiment of the detection switch status device provided by this utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 11. Linkage component; 12. Base; 13. Moving contact; 14. Micro switch; 15. Rotor; 16. Rotating shaft; 17. Rotating hole; 18. Elastic component; 19. Base plate; 20. Rotating shaft; 21. Circuit board; 121. Guide hole; 122. Chamber; 141. Drive unit; 142. Fixing hole; 151. Positioning post; 152. Positioning cavity; 153. Protrusion; 1221. Fixing post. Detailed Implementation

[0037] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0041] Example 1

[0042] This embodiment provides a device for detecting switch status, as shown in the attached document. Figures 1-6 As shown, it includes:

[0043] Linkage component 11 has one end passing through base 12 and cooperating with the operating mechanism, meaning the operating mechanism drives linkage component 11 to move during operation. Alternatively, one end of linkage component 11 passes through base 12 and cooperating with moving contact 13, meaning the moving contact 13 drives linkage component 11 to move during rotation. Since the moving contact 13 also moves during the operation of the operating mechanism, the two are linked together. Therefore, linkage component 11 can cooperate with either the operating mechanism or the moving contact 13, and those skilled in the art can adjust the cooperation relationship according to actual needs.

[0044] A micro switch 14 is connected to the bottom surface of the base 12. The movement of the other end of the linkage 11 actuates the drive unit 141 of the micro switch 14. Driven by the operating mechanism or the moving contact 13, the linkage 11 causes the micro switch 14 to actuate, thus achieving a signal transmission effect. The circuit breaker control unit can receive the signal, thereby detecting the switch status. It should also be noted that the micro switch 14 has an internal reset structure that can apply a reset force to reset the drive unit 141. This is prior art and will not be described in detail in this embodiment. It should also be noted that the electrical connection between the micro switch 14 and the circuit breaker control unit, i.e., the wiring of the micro switch 14, involves one end of a wire forming an electrical connection with the micro switch 14, and the other end extending along the bottom surface of the base 12 to the neutral wire area, and then into the switch's interior to form an electrical connection with the control unit inside the switch. Alternatively, the micro switch 14 can be fixed to a circuit board, which is attached to the bottom surface of the base 12. The circuit board has connectors that form an electrical connection with the control unit. By mounting the micro switch 14 on the bottom surface of the base 12, a bottom-mounted effect is achieved, isolating the micro switch 14 from the internal circuitry and improving insulation. Furthermore, the micro switch 14 is easier to install and allows for better detection of the switch status. The linkage 11 can cooperate with the operating mechanism, for example, by cooperating with the rotating shaft of the operating mechanism. The linkage 11 can also cooperate with the moving contact 13, with the moving contact 13 driving the linkage 11 during rotation. In this embodiment, the switch specifically refers to a circuit breaker, which can be a molded case circuit breaker, an open circuit breaker, a residual current circuit breaker, an electronic circuit breaker, etc. This embodiment uses a molded case circuit breaker as an example for description, but those skilled in the art can replace it with other types of circuit breakers.

[0045] Specifically, as shown in the attached document Figures 1-5As shown, the circuit breaker also includes a rotor 15, which is connected to the bottom surface of the base 12 and rotates relative to the base 12. The long side of the micro switch 14 is in contact with the bottom surface of the base 12, and the other end of the linkage 11 is linked to the rotor 15. The drive part 141 of the micro switch 14 is located on the rotation trajectory of the rotor 15. In this embodiment, the length direction of the molded case circuit breaker is taken as the X-axis, the width direction as the Y-axis, and the height direction as the Z-axis. The bottom surface of the base 12 is located in the XOY plane, and the rotor 15 rotates relative to the XOY plane. The linkage 11 extends along the Z-axis into the interior of the molded case circuit breaker to cooperate with the operating mechanism or the moving contact 13. When a fault occurs, the operating mechanism or the moving contact 13 is activated. At this time, the linkage 11 does not move in the Z-axis direction, but moves relative to the XOY plane, thereby rotating the rotor 15 and ultimately triggering the micro switch 14. The position of the micro switch 14 is limited to a horizontal mounting, which greatly reduces the height of the switch and the overall height of the switch. Furthermore, the rotation of the rotor 15 drives the micro switch 14, making the drive more stable. Alternatively, the micro switch 14 can be mounted vertically. In this case, the operating mechanism or moving contact 13 drives the linkage 11 to move along the Z-axis, thus actuating the micro switch 14.

[0046] Specifically, as shown in the attached document Figure 6 As shown, the base 12 is provided with a guide hole 121, and the linkage 11 passes through the guide hole 121 and slides relative to the guide hole 121. The guide hole 121 and the linkage 11 cooperate to form a guiding effect, allowing the linkage 11 to move along the guide hole 121. Here, the cross-sectional area of ​​the guide hole 121 is larger than the cross-sectional area of ​​the linkage 11, allowing the linkage 11 to move along the guide hole 121. The length of the guide hole 121 can be adjusted according to actual needs.

[0047] Specifically, as shown in the attached document Figures 1-4 As shown, one of the rotor 15 and the base 12 is provided with a rotating shaft 16, and the other of the rotor 15 and the base 12 is provided with a rotating hole 17 that mates with the rotating shaft 16. When the rotor 15 is provided with the rotating shaft 16, the bottom surface of the base 12 is provided with the rotating hole 17; conversely, when the rotor 15 is provided with the rotating hole 17, the bottom surface of the base 12 is provided with the rotating shaft 16. The rotating shaft 16 and the rotating hole 17 work together to create the rotation effect of the rotor 15.

[0048] Specifically, as shown in the attached document Figure 1-2 As shown, the rotor 15 is rotatably connected to the base 12 at the bottom of the rotor 15, the linkage 11 is connected to the rotor 15 in the middle region of the rotor 15, and the drive unit 141 is engaged with the rotor 15 at the rightmost side of the rotor 15. In addition, as shown in the attached diagram... Figure 5As shown, the rotor 15 is rotatably connected to the base 12 at the middle position of the rotor 15, the linkage 11 is connected to the rotor 15 at the bottom of the rotor 15, and the drive unit 141 is engaged with the rotor 15 at the rightmost position of the rotor 15. These three connection positions can be adjusted by those skilled in the art according to actual needs. The micro switch 14 can be located on the left side of the rotor 15, below the rotor 15, or above the rotor 15 (in various directions of the XOY plane).

[0049] Specifically, as shown in the attached document Figures 1-5 As shown, it also includes an elastic element 18, which stores or releases energy when the rotor 15 rotates. The elastic element 18 serves as an auxiliary reset mechanism. Here, the micro switch 14 itself has a reset function, causing the drive unit 141 to reset. The elastic element 18 can provide auxiliary reset, improving the reset speed. The elastic element 18 can be a spring, with one end abutting against the rotor 15 and the other end abutting against the base 12. The elastic element 18 can also be a torsion spring, which is sleeved on the rotating shaft 16, with one leg of the torsion spring abutting against the rotor 15 and the other leg abutting against the base 12.

[0050] Specifically, as shown in the attached document Figure 6 As shown, the base 12 has a chamber 122 on its bottom surface, which opens downwards, specifically downwards along the Z-axis. The linkage 11, rotor 15, microswitch 14, and elastic element 18 are housed within the chamber 122. Part of the linkage 11 is located within the chamber 122, while the remaining portion extends through the base 12 into the circuit breaker. One end of the elastic element 18 abuts against the rotor 15, and the other end abuts against the inner wall of the chamber 122. The chamber 122 creates an embedded effect, forming a concealed fixation. A base plate 19 is also included, which mates with the bottom surface of the base 12 to close the chamber 122.

[0051] Specifically, as shown in the attached document Figure 4 As shown, the rotor 15 is provided with a positioning post 151, and one end of the elastic element 18 is sleeved on the positioning post 151. The positioning post 151 makes it easier to fix the elastic element 18 and facilitates its installation. Furthermore, the rotor 15 is also provided with a positioning cavity 152, in which part of the elastic element 18 is located, and the rest of the elastic element 18 extends outside the rotor 15 and abuts against the inner wall of the cavity 122. Here, the elastic element 18 is described using a spring as an example.

[0052] Specifically, as shown in the attached document Figure 6 As shown, chamber 122 is provided with a fixing post 1221, and micro switch 14 is provided with a fixing hole 142. The fixing post 1221 and the fixing hole 142 cooperate to form a positioning and fixing effect of micro switch 14. In addition, micro switch 14 can also be fixed by screws or other parts.

[0053] Specifically, the rotor 15 is provided with a protrusion 153, and the drive part 141 cooperates with the protrusion 153.

[0054] Specifically, the rotor 15 and the linkage 11 are integrated. This integrated design makes manufacturing more convenient. Alternatively, the rotor 15 and the linkage 11 can be independently designed and then linked together to achieve interlocking, such as through a plug-in type or an interference fit.

[0055] Specifically, the linkage 11 is made of insulating material, specifically plastic, and is cylindrical in shape. The linkage 11 can also have other structures, or it may have other structures that cooperate with the rotating shaft or moving contact 13 to improve drive stability. The rotor 15 is also made of insulating material.

[0056] Specifically, the linkage 11 can cooperate with the rotating shaft of the operating mechanism, and the rotation of the rotating shaft drives the linkage 11 to move; the linkage 11 can also cooperate with the moving contact 13, and the rotation of the moving contact 13 drives the linkage 11 to move. In this embodiment, the cooperation between the moving contact 13 and the linkage 11 is used as an example for description.

[0057] Example 2

[0058] This embodiment provides a device for detecting switch status, as shown in the attached document. Figure 7 As shown, the difference between Embodiment 2 and Embodiment 1 is that the rotating shaft 20 of the operating mechanism rotates, and the rotating shaft 20 drives the linkage 11 to move downward along the Z-axis. The micro switch 14 is vertically fixed on the bottom surface of the base 12. At this time, the micro switch 14 is connected and fixed to the circuit board 21 located on the bottom surface of the base 12 to form an electrical connection effect, and then the circuit board 21 is sealed by the base plate 19.

[0059] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A device for detecting switch status, characterized in that, include, Linkage component (11), one end of which passes through the base (12) and cooperates with the operating mechanism; or, one end of which passes through the base (12) and cooperates with the moving contact (13); A micro switch (14) is connected to the bottom surface of the base (12), and the other end of the linkage (11) moves to realize the action of the drive part (141) of the micro switch (14).

2. The device for detecting switch status according to claim 1, characterized in that, It also includes a rotor (15), which is connected to the bottom surface of the base (12) and rotates relative to the base (12). The long side of the micro switch (14) is in contact with the bottom surface of the base (12). The other end of the linkage (11) is linked to the rotor (15). The driving part (141) of the micro switch (14) is located on the rotation trajectory of the rotor (15).

3. The device for detecting switch status according to claim 2, characterized in that, The base (12) is provided with a guide hole (121), the linkage (11) passes through the guide hole (121), and the linkage (11) slides relative to the guide hole (121).

4. The device for detecting switch status according to claim 2, characterized in that, One of the rotor (15) and the base (12) is provided with a rotating shaft (16), and the other of the rotor (15) and the base (12) is provided with a rotating hole (17) that cooperates with the rotating shaft (16).

5. The device for detecting switch status according to claim 1, characterized in that, It also includes an elastic element (18), which stores or releases energy when the rotor (15) rotates.

6. The device for detecting switch status according to claim 5, characterized in that, The base (12) has a cavity (122) on its bottom surface. The cavity (122) opens downwards. The linkage (11), the rotor (15), the micro switch (14), and the elastic element (18) are housed in the cavity (122). One end of the elastic element (18) abuts against the rotor (15), and the other end of the elastic element (18) abuts against the inner wall of the cavity (122).

7. The device for detecting switch status according to claim 6, characterized in that, The rotor (15) is provided with a positioning post (151), and one end of the elastic element (18) is sleeved on the positioning post (151).

8. The device for detecting switch status according to claim 2, characterized in that, The rotor (15) is provided with a protrusion (153), and the drive unit (141) cooperates with the protrusion (153).

9. The device for detecting switch status according to claim 2, characterized in that, The rotor (15) and the linkage (11) are integrally formed.

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