Tripping structure

Abstract

The utility model discloses a tripping structure, which comprises a shell, a handle, an operating mechanism and a tripping device, the operating mechanism comprises a lever linked with the handle and a draw bar matched with the tripping device, the tripping device comprises a tripping rod, a reset rod and a coil assembly, one end of the tripping rod is matched with the coil assembly, and the other end of the tripping rod is matched with the draw bar; one end of the reset rod is matched with the coil assembly, and the other end of the reset rod is matched with the handle; by adopting the structure, the coil assembly is reset through oblique force, so that the height of the whole tripping device can be reduced, a larger space is provided for the upper end of the circuit breaker, the installation of a plugging module is met, the size of the whole tripping device is small, and the material cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to a tripping structure. Background Technology

[0002] Existing measuring circuit breakers with integrated energy metering are based on three-phase three-wire electronic circuit breakers, with the addition of intelligent control and energy metering functions. This allows them to collect multiple parameters such as current, voltage, and temperature to achieve both protection and metering functions. These measuring circuit breakers use an electronic tripping device to drive the circuit breaker's traction rod, which in turn triggers the operating mechanism to trip the circuit breaker, thus protecting the line. Then, by rotating a handle, the handle drives the lever of the operating mechanism to rotate, which in turn resets the electronic tripping device.

[0003] In existing technologies, electronic tripping devices are typically mounted horizontally on a base or controller module. To better coordinate the electronic tripping device with the lever, the overall height of the electronic tripping device needs to be increased to ensure the lever can drive the tripping rod to reset during rotation. However, this structure has a problem: as the functions of the measuring switch expand, plug-in modules need to be installed at the top of the circuit breaker. The tripping device occupies a significant amount of space in terms of height, making it difficult to install these upper plug-in modules. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is how to reduce the height of the tripping device. To this end, a tripping structure includes a housing, a handle, an operating mechanism, and a tripping device. The operating mechanism includes a lever linked to the handle and a traction rod cooperating with the tripping device. The tripping device includes a tripping rod, a reset rod, and a coil assembly. One end of the tripping rod cooperates with the coil assembly, and the other end cooperates with the traction rod. The reset rod is inclined towards the handle, with one end cooperating with the coil assembly and the other end cooperating with the handle.

[0005] The reset rod is fitted with an elastic element.

[0006] The tripping device includes a tripping seat and a tripping cover. The tripping seat and the tripping cover cooperate to form a cavity. The cavity has a first guide cavity and a second guide cavity. The tripping rod is housed in the first guide cavity, and the reset rod and the elastic element are housed in the second guide cavity.

[0007] The reset rod is provided with a limiting protrusion, one end of the elastic element abuts against the limiting protrusion, and the other end of the elastic element abuts against the inner wall of the second guide cavity.

[0008] The trip lever includes a body portion and a lever portion, the body portion being connected to the lever portion, the body portion being located in the first guide cavity, and the lever portion extending to the outside of the first guide cavity.

[0009] One of the tripping seat and the tripping cover is provided with a fixing post, and the other of the tripping seat and the tripping cover is provided with a fixing hole that cooperates with the fixing post.

[0010] The trip seat and the trip cover cooperate to form a notch for wiring, and the notch communicates with the chamber.

[0011] The handle includes a handle portion and an arc-shaped portion, the handle portion being connected to the top surface of the arc-shaped portion, and one end of the reset rod being located on the movement trajectory of the arc-shaped portion.

[0012] The housing is provided with a positioning groove that cooperates with the release device.

[0013] The technical solution of this utility model has the following advantages:

[0014] 1. This utility model provides a tripping structure. With this structure, when a fault occurs in the circuit breaker's line, the tripping device operates, the coil assembly actuates, and the tripping rod moves. The tripping rod cooperates with the traction rod to achieve the tripping and opening effect. When the handle is rotated to re-tighten, the handle moves the reset rod, which moves diagonally downwards, causing the coil assembly to reset. Subsequently, the handle moves the operating mechanism, and the traction rod also resets the tripping rod, achieving an overall reset effect. This structure, using diagonal force to reset the coil assembly, reduces the overall height of the tripping device, providing more space at the top of the circuit breaker to accommodate the installation of plug-in modules. The smaller size of the entire tripping device also reduces material costs.

[0015] 2. The tripping structure provided by this utility model uses an elastic element as an auxiliary element to accelerate the action of the reset rod. Alternatively, the same action can be achieved without the elastic element; simply lengthening the reset rod or rotatably connecting the reset rod to the coil assembly is sufficient.

[0016] 3. The tripping structure provided by this utility model has a tripping seat and a tripping cover that cooperate to form an installation chamber, making the entire tripping device a module, which facilitates installation and disassembly. Furthermore, the tripping seat and tripping cover isolate the tripping device from the external environment, effectively preventing demagnetization.

[0017] 4. The release structure provided by this utility model has a limiting protrusion that allows the elastic element to better cooperate with the reset rod.

[0018] 5. The present invention provides a release structure in which the body part and the rod part cooperate to prevent the entire release rod from sliding out of the first guide cavity.

[0019] 6. The release structure provided by this utility model, with the cooperation between the fixing post and the fixing hole, makes it more convenient to connect and fix the release seat and the release cover.

[0020] 7. The present invention provides a release structure in which the handle adopts this structure to better cooperate with the reset rod, and the movement trajectory of the curved part is arc-shaped.

[0021] 8. The tripping structure provided by this utility model, with the setting of the positioning groove, makes the installation of the tripping device more convenient. Attached Figure Description

[0022] 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.

[0023] Figure 1 A schematic diagram of a tripping structure provided by this utility model;

[0024] Figure 2 A partial structural schematic diagram of a tripping structure provided by this utility model;

[0025] Figure 3 for Figure 2 Another structural diagram from another angle;

[0026] Figure 4 for Figure 2 Exploded view;

[0027] Figure 5 for Figure 2 A sectional view;

[0028] Figure 6 for Figure 2 A cross-sectional view from another angle.

[0029] Explanation of reference numerals in the attached figures:

[0030] 11. Housing; 12. Handle; 13. Traction rod; 14. Tripping rod; 15. Reset rod; 16. Coil assembly; 17. Elastic element; 18. Tripping seat; 19. Tripping cover; 20. Chamber; 21. Fixing post; 22. Fixing hole; 23. Notch; 111. Positioning groove; 112. Base; 121. Handle; 122. Arc-shaped surface; 141. Body; 142. Rod; 151. Limiting protrusion; 161. Coil; 162. Iron core; 163. Tripping cap; 201. First guide cavity; 202. Second guide cavity. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] Example 1

[0036] This embodiment provides a tripping structure, as shown in the attached figure. Figures 1-6 As shown, it includes:

[0037] The circuit breaker comprises a housing 11, a handle 12, an operating mechanism, and a tripping device. The operating mechanism includes a lever linked to the handle 12 and a traction rod 13 cooperating with the tripping device. Rotation of the handle 12 drives the lever, causing movement of other components of the operating mechanism, ultimately achieving the circuit breaker's re-tripping or tripping operation. This is existing technology and will not be described in detail in this embodiment. The traction rod 13 serves the purpose of tripping and tripping. When the traction rod 13 is driven by the tripping device, its movement drives other components of the operating mechanism, ultimately achieving the circuit breaker's tripping and tripping. This is also existing technology and will not be described in detail in this embodiment. The tripping device includes a tripping rod 14, a reset rod 15, and a coil assembly 16. One end of the tripping rod 14 engages with the coil assembly 16, and the other end engages with the traction rod 13. When the coil assembly 16 actuates, it pushes the tripping rod 14 towards the traction rod 13, ultimately causing the tripping rod 14 to move the traction rod 13, achieving the tripping and tripping effect. The reset lever 15 is tilted towards the handle 12. One end of the reset lever 15 engages with the coil assembly 16, and the other end engages with the handle 12. When the handle 12 is rotated (towards the re-lock position), the handle 12 will drive the reset lever 15 to move towards the coil assembly 16, and the reset lever 15 will drive the coil assembly 16 to reset. With this structural design, when a fault occurs in the circuit breaker's line, the tripping device operates, the coil assembly 16 actuates, and drives the tripping rod 14 to move. The tripping rod 14 cooperates with the traction rod 13 to achieve the tripping and opening effect. When the handle 12 is rotated to re-tether, the handle 12 drives the reset rod 15 to move. The reset rod 15 moves diagonally downwards, causing the coil assembly 16 to reset. Subsequently, the handle 12 drives the operating mechanism to move, and the traction rod 13 also drives the tripping rod 14 to reset (at this time, the coil assembly 16 has been reset, the tripping rod 14 is not subject to the force of the coil assembly 16, the tripping rod 14 has no contact with the coil assembly 16, and the traction rod 13 only needs a small force to push the tripping rod 14 to reset), achieving an overall reset effect. This structure, using diagonal force to reset the coil assembly 16, reduces the overall height of the tripping device, providing more space at the top of the circuit breaker to accommodate the installation of plug-in modules. The overall size of the tripping device is small, which also reduces material costs.

[0038] Specifically, as shown in the attached document Figures 2-6 As shown, the reset lever 15 is fitted with an elastic element 17. The elastic element 17 serves as an auxiliary element, accelerating the movement of the reset lever 15. Specifically, the elastic element 17 is a spring. When the handle 12 is in the open position, the reset lever 15 moves rapidly, causing the end of the reset lever 15 facing the handle 12 to be positioned on the rotation trajectory of the handle 12. Alternatively, the same effect can be achieved without the elastic element 17. Simply lengthen the reset lever 15, or rotatably connect the reset lever 15 to the coil assembly 16, so that the coil assembly 16 simultaneously drives the trip lever 14 and the reset lever 15.

[0039] Specifically, as shown in the attached document Figures 1-6 As shown in the accompanying drawings, in this embodiment, the tripping device is located at the lower right of the handle 12. The coil assembly 16 is horizontally positioned, the tripping lever 14 moves horizontally left and right, and the reset lever 15 moves at an angle towards the handle 12 or towards the coil assembly 16. The angle of the reset lever 15 can be adjusted according to actual needs. The handle 12, in conjunction with the reset lever 15, forms a downward force, which, through force decomposition, ultimately resets the coil assembly 16. The coil assembly 16 includes a coil 161, an iron core 162, and a tripping cap 163. The coil 161 is sleeved on the outer surface of the iron core 162 and the tripping cap 163. The iron core 162 is fixed, and the tripping cap 163 moves relative to the iron core 162. When the coil assembly 16 is working, the tripping cap 163 moves horizontally to the left, abutting against the tripping lever 14 and causing the tripping lever 14 to move. When the trip cap 163 is reset, the reset lever 15 drives the trip cap 163 to move, thereby resetting the trip cap 163. The trip lever 14 and the reset lever 15 are independently configured. Both the trip lever 14 and the reset lever 15 are connected to the front end of the trip cap 163, but their points of action are not the same.

[0040] Specifically, as shown in the attached document Figures 2-6 As shown, the tripping device includes a tripping seat 18 and a tripping cover 19. The tripping seat 18 and the tripping cover 19 cooperate to form a chamber 20, in which the coil assembly 16, the tripping rod 14, and the reset rod 15 are all housed. The chamber 20 has a first guide cavity 201 and a second guide cavity 202. In this embodiment, the first guide cavity 201 extends horizontally towards the operating mechanism, and the second guide cavity 202 extends obliquely towards the handle 12. The tripping rod 14 is housed in the first guide cavity 201, and the reset rod 15 and the elastic element 17 are housed in the second guide cavity 202. The tripping seat 18 and the tripping cover 19 cooperate to form an installation chamber 20, making the entire tripping device a module, which facilitates installation and disassembly. Furthermore, the tripping seat 18 and the tripping cover 19 isolate the tripping device from the external environment, effectively preventing demagnetization.

[0041] Specifically, as shown in the attached document Figures 2-6 As shown, the reset rod 15 is provided with a limiting protrusion 151, one end of the elastic member 17 abuts against the limiting protrusion 151, and the other end of the elastic member 17 abuts against the inner wall of the second guide cavity 202. The setting of the limiting protrusion 151 allows the elastic member 17 to better cooperate with the reset rod 15.

[0042] Specifically, as shown in the attached document Figures 2-6As shown, the trip lever 14 includes a body portion 141 and a lever portion 142. The body portion 141 is connected to the lever portion 142. The cross-sectional area of ​​the body portion 141 is larger than that of the lever portion 142, and a stepped surface is formed at the connection between the two. The body portion 141 is located in the first guide cavity 201, and the lever portion 142 extends to the outside of the first guide cavity 201. The body portion 141 and the lever portion 142 cooperate to prevent the entire trip lever 14 from sliding out of the first guide cavity 201. The cross-sectional area of ​​the body portion 141 is larger than that of the first guide cavity 201, so the body portion 141 cannot slide out of the first guide cavity 201.

[0043] Specifically, as shown in the attached document Figures 2-6 As shown, one of the trip seat 18 and the trip cover 19 is provided with a fixing post 21, and the other of the trip seat 18 and the trip cover 19 is provided with a fixing hole 22 that mates with the fixing post 21. When the trip seat 18 is provided with the fixing post 21, the trip cover 19 is provided with the fixing hole 22; conversely, when the trip seat 18 is provided with the fixing hole 22, the trip cover 19 is provided with the fixing post 21. The number of fixing posts 21 and fixing holes 22 can be limited according to actual needs. The mating between the fixing posts 21 and the fixing holes 22 makes it easier to connect and fix the trip seat 18 and the trip cover 19. In addition, bolts or clips can also be used to achieve the connection and fixation effect between the trip seat 18 and the trip cover 19.

[0044] Specifically, as shown in the attached document Figure 3 As shown, the trip seat 18 and the trip cover 19 cooperate to form a notch 23 for wiring, and the notch 23 communicates with the chamber 20. Here, the notch 23 is located on the side away from the operating mechanism, specifically to facilitate wiring and achieve the electrical connection effect between the circuit breaker's control unit or internal wiring and the coil 161.

[0045] Specifically, as shown in the attached document Figure 1 As shown, the handle 12 includes a handle portion 121 and an arc-shaped portion 122. The handle portion 121 is connected to the top surface of the arc-shaped portion 122, and one end of the reset rod 15 is located on the movement trajectory of the arc-shaped portion 122. This structural design of the handle 12 better enables it to cooperate with the reset rod 15, where the movement trajectory of the arc-shaped portion 122 is arc-shaped.

[0046] Specifically, as shown in the attached document Figure 1As shown, the housing 11 is provided with a positioning groove 111 that cooperates with the tripping device. The positioning groove 111 makes the installation of the tripping device more convenient. Furthermore, the housing 11 includes a base 112, and the positioning groove 111 is disposed on the base 112. In this embodiment, the upper end of the circuit breaker specifically refers to the housing 11, which also includes a middle cover. The middle cover is located above the base 112 and cooperates with the base 112. The plug-in module is disposed above the middle cover. The height of the entire housing 11 is subject to certain requirements and must not exceed a preset value. Therefore, by reducing the height of the tripping device, the space utilization rate above is improved, and the installation space of the plug-in module is satisfied.

[0047] Specifically, the number of tripping devices can be one, two, three, or even more, and those skilled in the art can add or reduce them according to actual needs.

[0048] 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 tripping structure, comprising a housing (11), a handle (12), an operating mechanism, and a tripping device, wherein the operating mechanism includes a lever linked to the handle (12) and a traction rod (13) cooperating with the tripping device, characterized in that, The tripping device includes a tripping rod (14), a reset rod (15), and a coil assembly (16). One end of the tripping rod (14) engages with the coil assembly (16), and the other end of the tripping rod (14) engages with the traction rod (13). The reset rod (15) is inclined toward the handle (12), with one end of the reset rod (15) engaging with the coil assembly (16) and the other end of the reset rod (15) engaging with the handle (12).

2. The tripping structure according to claim 1, characterized in that, The reset rod (15) is fitted with an elastic element (17).

3. The tripping structure according to claim 2, characterized in that, The tripping device includes a tripping seat (18) and a tripping cover (19). The tripping seat (18) and the tripping cover (19) cooperate to form a chamber (20). The chamber (20) is provided with a first guide cavity (201) and a second guide cavity (202). The tripping rod (14) is housed in the first guide cavity (201), and the reset rod (15) and the elastic element (17) are housed in the second guide cavity (202).

4. The tripping structure according to claim 3, characterized in that, The reset rod (15) is provided with a limiting protrusion (151), one end of the elastic element (17) abuts against the limiting protrusion (151), and the other end of the elastic element (17) abuts against the inner wall of the second guide cavity (202).

5. The tripping structure according to claim 3, characterized in that, The trip lever (14) includes a body part (141) and a lever part (142). The body part (141) is connected to the lever part (142). The body part (141) is located in the first guide cavity (201), and the lever part (142) extends to the outside of the first guide cavity (201).

6. The tripping structure according to claim 3, characterized in that, One of the tripping seat (18) and the tripping cover (19) is provided with a fixing post (21), and the other of the tripping seat (18) and the tripping cover (19) is provided with a fixing hole (22) that cooperates with the fixing post (21).

7. The tripping structure according to claim 3, characterized in that, The trip seat (18) and the trip cover (19) cooperate to form a notch (23) for wiring, and the notch (23) communicates with the chamber (20).

8. The tripping structure according to claim 1, characterized in that, The handle (12) includes a handle (121) and an arc-shaped surface (122). The handle (121) is connected to the top surface of the arc-shaped surface (122), and one end of the reset rod (15) is located on the movement trajectory of the arc-shaped surface (122).

9. The tripping structure according to claim 1, characterized in that, The housing (11) is provided with a positioning groove (111) that cooperates with the release device.

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