Test button and circuit breaker

Abstract

The utility model discloses a test button and a circuit breaker, and the test button comprises a first rod part, a second rod part, and a connection part. The lower end of the second rod part is fixed with the connecting part, and the upper end extends towards a second direction; the upper end of the first rod part is fixed with the connecting part, and the lower end extends towards a first direction; the first direction and the second direction are two opposite directions; the connecting position of the first rod part and the connecting part and the connecting position of the second rod part and the connecting part are staggered, so that the second rod part and the connecting part form an avoiding space right above the first rod part; the electronic module has the advantages that large electronic modules are avoided, and arrangement of the electronic modules is facilitated.

Description

Technical Field

[0001] The present application relates to the electrical field of low-voltage switches, and in particular to a test button. Background Art

[0002] In the field of molded case circuit breakers, a test button is often provided, one end of which is exposed on the panel of the circuit breaker housing (it can also be said to be the upper surface of the uppermost cover), and the other end of the test button is located near the traction rod of the operating mechanism. When the circuit breaker is in the closed state, pressing the test button can cause the traction rod to rotate, thereby tripping the circuit breaker.

[0003] The test button of this type of molded case circuit breaker is basically a straight rod, and is generally set just above the traction rod. For example, the structure disclosed in CN217061815U is a common test button. However, as users' additional functions for molded case circuit breakers continue to increase, many circuit boards, electric operating mechanisms, communication modules and other components are often added to the cover of the circuit breaker. Some of these components will be arranged just above the traction rod to a greater or lesser extent. If it happens to be a circuit board containing some small electronic components, it is fine. By changing the position of the electronic components and opening holes at the corresponding position of the traction rod, the setting of the straight test button will not be affected. However, if it is a communication module or an LCD display or a very large electronic component, when these types of components occupy the space just above the traction rod, the existing straight test button cannot be used.

[0004] Therefore, how to design a new type of test button is a brand new challenge for those skilled in the art. Summary of the invention

[0005] In view of this, the purpose of the present application is to overcome the deficiencies in the prior art and to provide a test button and a circuit breaker.

[0006] The present application provides: a test button, which includes a first rod portion, a second rod portion and a connecting portion; the lower end of the second rod portion is fixed to the connecting portion, and the upper end extends in the second direction; the upper end of the first rod portion is fixed to the connecting portion, and the lower end extends in the first direction; the first direction and the second direction are two opposite directions; the connection position between the first rod portion and the connecting portion and the connection position between the second rod portion and the connecting portion are staggered with each other, so that the second rod portion and the connecting portion form an avoidance space directly above the first rod portion.

[0007] With this structure, the test button of this structure adopts a design of a first rod portion and a second rod portion that are staggered with each other, so that the second rod portion and the connecting portion form an avoidance space just above the first rod portion. The avoidance space can be used to avoid communication modules or LCD screens or very large electronic components, thereby not affecting the assembly of these components or the function of the test button.

[0008] In some embodiments of the present application, the first rod portion and the connecting portion are fixed by one of integral molding, riveting, screw fastening, interference fit, and snap fit, and the second rod portion and the connecting portion are also fixed by one of integral molding, riveting, screw fastening, interference fit, and snap fit.

[0009] No matter which of the above methods is adopted, the first rod portion, the connecting portion and the second rod portion can form a relatively stable structure.

[0010] In some embodiments of the present application, the first rod portion and the connecting portion are vertically arranged, and the second rod portion and the connecting portion are vertically arranged.

[0011] By adopting this structural design, the structure of the test button can be made more compact.

[0012] A circuit breaker comprises a base, a cover body, an upper cover, an operating mechanism, a test button and an electronic module; the cover body is fixed on the base, and the upper cover is fixed on the cover body; a partition wall is arranged on the cover body, a traction rod of the operating mechanism is located below the partition wall, and the electronic module is located above the partition wall; a second through hole is opened on the upper cover, a first through hole is opened on the partition wall, and a driving part corresponding to the first through hole is arranged on the traction rod; wherein, the above-mentioned test button is also included; part of the second rod part is exposed by the second through hole, the first rod part is penetrated in the first through hole, and part of the electronic module is in the avoidance space; the second rod part is used for being pressed by a user, and after being pressed, the first rod part acts on the driving part.

[0013] With this structural design, the electronic modules can be avoided by utilizing the avoidance space, which is beneficial to the arrangement of the electronic modules and makes the structure more compact.

[0014] In some embodiments of the present application, the electronic module is a communication module, and a portion of the communication module is located in the avoidance space.

[0015] With this structure, the electronic module can be a communication module.

[0016] In some embodiments of the present application, the electronic module is a circuit board with a display device, and a portion of the display device is located in the avoidance space.

[0017] With this structure, the electronic module can be a circuit board with a display device.

[0018] In some embodiments of the present application, the cover body includes a side wall surrounding the partition wall, the side wall and the partition wall form an upper space, and the upper space is located above the partition wall; there is also a limiting structure in the upper space, and after the test button is installed, the limiting structure at least limits the connecting part and / or the second rod part.

[0019] The setting of the limiting structure can ensure that the position of the test button is relatively fixed after installation, which will be beneficial to the assembly of other components such as the electronic module.

[0020] In some embodiments of the present application, the limiting structure also plays a guiding role. When the test button is sliding, the connecting portion and / or the second rod portion always slides along the limiting structure.

[0021] With this structure, the limit structure can also play a guiding role, which will be beneficial to the movement of the test button and can achieve the effect of multiple uses of one object.

[0022] In some embodiments of the present application, the limiting structure is a first limiting protrusion extending upward from the partition wall, and the first limiting protrusion surrounds the periphery of the connecting part to limit the connecting part; or, the limiting structure is a first groove opened on the side wall, and the first groove limits the connecting part and the second rod part; or, the limiting structure is a second limiting protrusion extending upward from the partition wall, and a second groove is opened on the second limiting protrusion, and the second groove limits the connecting part and / or the second rod part.

[0023] The limiting structures of the above structures can ensure that the position of the test button is relatively fixed after installation.

[0024] In some embodiments of the present application, a test spring is disposed between the first rod portion and the first through hole, and the test spring is used to drive the test button to reset after being pressed.

[0025] The design of the test spring will facilitate the resetting of the test button.

[0026] In some embodiments of the present application, a human-machine interaction interface is provided on the upper cover, and the second through hole is located at the human-machine interaction interface.

[0027] By adopting this structural arrangement, the exposed part of the test button can be located at the human-computer interaction interface, so that the components for user operation are relatively concentrated, thereby improving the user experience as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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 creative work.

[0029] Figure 1 A three-dimensional diagram of one implementation of the circuit breaker of Example 1 of the present application is shown;

[0030] Figure 2 A three-dimensional diagram showing another implementation of the circuit breaker of Example 1 of the present application;

[0031] Figure 3 A three-dimensional diagram showing one implementation of a test button in a circuit breaker in Example 1 of the present application is shown;

[0032] Figure 4 A three-dimensional diagram showing another implementation of a test button in a circuit breaker in Example 1 of the present application is shown;

[0033] Figure 5 A top view of one implementation of a test button and an electronic module in a circuit breaker in Example 1 of the present application is shown;

[0034] Figure 6 A three-dimensional diagram and a partial enlarged diagram of one implementation of a test button and an electronic module in a circuit breaker in Example 1 of the present application are shown;

[0035] Figure 7 A top view of another implementation of the test button and the electronic module in the circuit breaker of Example 1 of the present application is shown;

[0036] Figure 8 A three-dimensional diagram and a partial enlarged diagram of another implementation of the test button and the electronic module in the circuit breaker of Example 1 of the present application are shown;

[0037] Fig. 9 A three-dimensional diagram and a partial enlarged diagram of another implementation of the test button and the electronic module in the circuit breaker of Example 1 of the present application are shown;

[0038] Fig.10 A cross-sectional view of the test button and the draw rod in the circuit breaker of Embodiment 1 of the present application is shown. DETAILED DESCRIPTION

[0039] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "primary" and "secondary" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "primary" and "secondary" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0042] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] In the present application, unless otherwise clearly specified and limited, when a main feature is “above” or “below” a second feature, it can mean that the main feature and the second feature are in direct contact, or the main feature and the second feature are in indirect contact through an intermediate medium. Moreover, when a main feature is “above”, “above” or “above” a second feature, it can mean that the main feature is directly above or obliquely above the second feature, or simply means that the main feature is higher in level than the second feature. When a main feature is “below”, “below” or “below” a second feature, it can mean that the main feature is directly below or obliquely below the second feature, or simply means that the main feature is lower in level than the second feature. Example

[0044] like Figure 1-Figure 10As shown, an embodiment of the present application exemplifies a circuit breaker, which is a type of molded case circuit breaker and has a test function. The test function here means that when the circuit breaker is in a closed state, the user can trip the circuit breaker by pressing a test button 5000.

[0045] The specific test button 5000 includes a first rod portion 5001, a second rod portion 5003 and a connecting portion 5002. Here, the first rod portion 5001 and the second rod portion 5003 are respectively connected to the two sides of the connecting portion 5002, the first rod portion 5001 extends downward, and the second rod portion 5003 extends upward. At the same time, the connection position between the first rod portion 5001 and the connecting portion 5002 and the connection position between the second rod portion 5003 and the connecting portion 5002 are mutually misaligned, and the shape of such a test button 5000 is roughly "ㄣ" shaped. Such a structure can form an avoidance space 5004 directly above the first rod portion 5001, and the avoidance space 5004 here is formed by the second rod portion 5003 and the connecting portion 5002.

[0046] Here, the first rod portion 5001 and the connecting portion 5002 are vertically arranged, and the second rod portion 5003 and the connecting portion 5002 are also vertically arranged.

[0047] Of course, the first rod portion 5001, the second rod portion 5003 and the connecting portion 5002 are integrally formed components. In addition to the integrally formed components, the first rod portion 5001 and the connecting portion 5002 or the second rod portion 5003 and the connecting portion 5002 can also be fixed by connection, screw fastening, interference fit, snap fit, etc.

[0048] Here, the cross-sectional shape of the connecting portion 5002 may be a regular pattern, for example Figure 3 The cross-sectional shape of the connecting portion 5002 may also be an irregular shape, such as Figure 4 No matter which method is used, as long as the first rod 5001 and the second rod 5003 can be connected thereto.

[0049] Below the cover 1002 of the circuit breaker, a base 1001 is provided, and bolts are used to fasten the base 1001 and the cover 1002. Above the cover 1002, an upper cover 1003 is provided, and bolts are also used to fasten the upper cover 1003 and the cover 1002. Of course, in addition to this, bolts can be used to fasten all three, or other fastening methods can be used, no matter which method is used, as long as the stability of the three structures can be ensured.

[0050] The cover 1002 includes a partition wall 1002a and a side wall 1002b surrounding the partition wall 1002a, where the side wall 1002b and the partition wall 1002a form an upper space, and the upper space is located above the partition wall 1002a. The partition wall 1002a here does not specifically refer to a flat wall, nor does it refer to a completely closed wall. The main function of the partition wall 1002a here is to separate the upper space from the strong electric components in the base 1001 as much as possible, but there are still some reserved holes on the partition wall 1002a for wiring, or for some components to pass through, etc.

[0051] The operating mechanism is mainly arranged below the cover body 1002, that is, most of the components of the operating mechanism are arranged below the partition wall 1002a, and only the handle of the operating mechanism passes through the partition wall 1002a and extends into the upper space. For example, the frame, lever, traction rod 2001 and other components are located below the partition wall 1002a.

[0052] A first through hole 1002a0 is provided on the partition wall 1002a, and the driving portion 2001a on the traction rod 2001 is located directly below the first through hole 1002a0. The driving portion 2001a here is used to complete the test function.

[0053] The upper cover 1003 is provided with a second through hole 1003a, and the second through hole 1003a is also used to complete the test function.

[0054] An electronic module is disposed in the space formed by the cover 1002 and the upper cover 1003 (also understood as the upper space), and the electronic module is located above the first through hole 1002a0. Of course, the "located above the first through hole 1002a0" here does not mean that the two are in a close relationship, but the relationship between the two in terms of orientation. The electronic module will at least partially block the first through hole 1002a0.

[0055] The first rod 5001 of the test button 5000 is inserted into the first through hole 1002a0, the upper end of the second rod 5003 is exposed by the second through hole 1003a, and the electronic module is partially in the avoidance space 5004. Because of this, even if the electronic module at least partially blocks the first through hole 1002a0, the design of the connecting part 5002, the first rod 5001, and the second rod 5003 can avoid this electronic module as much as possible, which can reduce the space placement requirements for some electronic modules that cannot be directly penetrated (if it is an ordinary circuit board with small components, by reasonably designing the components, a free space can be reserved on the circuit board for perforation, but it is difficult to do so for some electronic modules with larger components). Here, this type of electronic module includes communication modules and circuit boards with display devices, such as Figure 1 ,The carrier communication module 3000 shown in ,5-6, for example Figure 2 ,7-8 Circuit board 4000 with display screen, these electronic modules have a common feature that they are large in structure and cannot be directly penetrated as a whole, so the use of the above-mentioned test button 5000 will greatly reduce the space requirements for the placement of these components. Of course, whether it is the carrier communication module 3000 or the circuit board 4000 with display screen, it does not mean that a circuit breaker must contain both components at the same time, either only one of them or both of them.

[0056] like Figure 2 As shown, for a circuit breaker including a circuit board 4000 with a display screen, a human-machine interaction interface 4000a is arranged at the upper cover 1003 corresponding to the position of the circuit board 4000 with a display screen, and the second through hole 1003a is also arranged at the human-machine interaction interface 4000a.

[0057] A test spring is arranged between the first rod portion 5001 and the first through hole 1002a0. The test spring here is a compression spring. The compression spring here has a reset effect, so that the pressed test button 5000 can be reset.

[0058] After the test button 5000 is installed, at least the connecting portion 5002 and / or the second rod portion 5003 are limited by the limiting structure.

[0059] The following are some examples of different limit structures.

[0060] like Fig. 9 As shown, in this manner, the limiting structure is a first limiting protrusion 1004a extending upward from the partition wall 1002a, or in other words, extending in the direction of the upper cover 1003. The first limiting protrusion 1004a here surrounds the connecting part 5002, and the connecting part 5002 is limited from the periphery of the connecting part 5002 by the first limiting protrusion 1004a.

[0061] like Figure 8 As shown, in this embodiment, the test button 5000 is arranged near a side wall 1002b, and a first groove 1004b is opened on the side wall 1002b, so that one side of the connecting part 5002 and the second rod part 5003 can be located in the first groove 1004b, and the connecting part 5002 and the second rod part 5003 can be limited by the first groove 1004b.

[0062] like Figure 6 As shown, in this embodiment, the limiting structure is a second limiting protrusion 1004c extending upward from the partition wall 1002a, or in other words, toward the direction where the upper cover 1003 is located. A second groove 1004d is provided on the second limiting protrusion 1004c. One side of the connecting portion 5002 and the second rod portion 5003 can be located in the second groove 1004d, and the connecting portion 5002 and the second rod portion 5003 can be limited by the second groove 1004d. Of course, in this embodiment, the second groove 1004d can also limit only the connecting portion 5002 or only the second rod portion 5003.

[0063] Of course, although a variety of limiting structures are introduced above through three implementation modes, this does not specifically mean that only one limiting structure can be used. It should be understood that multiple limiting structures can also be used.

[0064] In addition to the limiting effect, the above-mentioned limiting structures can also play a guiding effect, that is, during the sliding process of the test button 5000, the connecting portion 5002 and / or the second rod portion 5003 always slides along the limiting structure (the actual guiding component is the component limited by the above-mentioned limiting structure).

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

[0066] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A test button, characterized in that: It includes a first rod portion, a second rod portion and a connecting portion; the lower end of the second rod portion is fixed to the connecting portion, and the upper end extends in the second direction; the upper end of the first rod portion is fixed to the connecting portion, and the lower end extends in the first direction; the first direction and the second direction are two opposite directions; the connecting position between the first rod portion and the connecting portion and the connecting position between the second rod portion and the connecting portion are staggered with each other, so that the second rod portion and the connecting portion form an avoidance space directly above the first rod portion.

2. A test button according to claim 1, characterized in that: The first rod portion and the connecting portion are fixed by one of integral molding, riveting, screw fastening, interference fit, and snap fit, and the second rod portion and the connecting portion are also fixed by one of integral molding, riveting, screw fastening, interference fit, and snap fit.

3. A test button according to claim 1, characterized in that: The first rod portion and the connecting portion are arranged vertically, and the second rod portion and the connecting portion are arranged vertically.

4. A circuit breaker, comprising a base, a cover, an upper cover, an operating mechanism, a test button and an electronic module; the cover is fixed on the base, and the upper cover is fixed on the cover; a partition wall is provided on the cover, a traction rod of the operating mechanism is located below the partition wall, and the electronic module is located above the partition wall; a second through hole is provided on the upper cover, a first through hole is provided on the partition wall, and a driving part corresponding to the first through hole is provided on the traction rod; characterized in that: It also includes a test button as described in any one of claims 1-3; part of the second rod is exposed by the second through hole, the first rod is inserted into the first through hole, and part of the electronic module is in the avoidance space; the second rod is used for being pressed by the user, and after pressing, the first rod acts on the driving part.

5. A circuit breaker according to claim 4, characterized in that: The electronic module is a communication module, and a part of the communication module is located in the avoidance space; Alternatively, the electronic module is a circuit board with a display device, and a portion of the display device is located in the avoidance space.

6. A circuit breaker according to claim 4, characterized in that: The cover body includes a side wall surrounding the partition wall, the side wall and the partition wall form an upper space, and the upper space is located above the partition wall; There is also a limiting structure in the upper space. After the test button is installed, the limiting structure at least limits the connecting portion and / or the second rod portion.

7. A circuit breaker according to claim 6, characterized in that: The limiting structure also plays a guiding role. When the test button is sliding, the connecting portion and / or the second rod portion always slides along the limiting structure.

8. A circuit breaker according to claim 6 or 7, characterized in that: The limiting structure is a first limiting protrusion extending upward from the partition wall, and the first limiting protrusion surrounds the periphery of the connecting part to limit the connecting part; or, the limiting structure is a first groove opened on the side wall, and the first groove limits the connecting part and the second rod part; or, the limiting structure is a second limiting protrusion extending upward from the partition wall, and a second groove is opened on the second limiting protrusion, and the second groove limits the connecting part and / or the second rod part.

9. A circuit breaker according to claim 4, characterized in that: A test spring is arranged between the first rod portion and the first through hole, and the test spring is used to drive the test button to reset after being pressed.

10. A circuit breaker according to claim 4, characterized in that: A human-machine interaction interface is arranged on the upper cover, and the second through hole is located at the human-machine interaction interface.

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