Test button, electric leakage test system and circuit breaker

Abstract

The utility model provides a test button, an electric leakage test system and a circuit breaker. The test button comprises an action structure and an operation structure. And the action structure is arranged in the shell of the circuit breaker. The operation structure is connected with the action structure. The shell comprises a first shell face and a second shell face, the first shell face and the second shell face are oppositely arranged in the first direction, and a mounting window is formed in the first shell face. Wherein the first direction is the height direction of the circuit breaker. And the action structure is sleeved in the mounting window, so that the operation structure is positioned outside the shell. A contact surface is arranged on the operating structure, a first distance exists between the contact surface and the second shell surface in the first direction, a second distance exists between the first shell surface and the second shell surface, and the first distance is smaller than the second distance, so that a height difference exists between the contact surface and the first shell surface, and the handle of the circuit breaker is prevented from being damaged when rotating quickly and abutting against the first shell surface. And fingers of an operator, which press the contact surface, are pinched, so that the safety of the test button is improved.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and particularly to a test button, a leakage test system, and a circuit breaker. Background Art

[0002] Miniature leakage circuit breakers have a leakage protection function and can quickly cut off the power supply when a leakage occurs in the circuit to prevent electric shock accidents. The leakage circuit breaker includes a leakage test system for checking whether the leakage protection function of the leakage circuit breaker fails.

[0003] In the related art, an operator presses a test button to connect or disconnect the leakage test system. As a movable component, the test button will generate displacement during the pressing and resetting processes, and there are some potential safety hazards. Summary of the Utility Model

[0004] This application provides a test button, a leakage test system, and a circuit breaker, which improve the safety of the test button.

[0005] In a first aspect, this application provides a test button, including: an action structure and an operation structure. The action structure is disposed inside the housing of the circuit breaker. The operation structure is connected to the action structure. The housing includes a first shell surface and a second shell surface, the first shell surface and the second shell surface are oppositely disposed along a first direction, and an installation window is provided on the first shell surface. Wherein, the first direction is the height direction of the circuit breaker. The action structure is sleeved in the installation window, so that the operation structure is located outside the housing. A contact surface is provided on the operation structure, and there is a first distance between the contact surface and the second shell surface in the first direction, there is a second distance between the first shell surface and the second shell surface in the first direction, and the first distance is less than the second distance.

[0006] According to what is provided in the first aspect, the distance between the contact surface provided on the operation structure and the second shell surface in the first direction is less than the distance between the first shell surface and the second shell surface in the first direction, so that there is a height difference between the contact surface and the first shell surface, preventing the handle of the circuit breaker from quickly rotating and abutting against the first shell surface and pinching the finger of the operator pressing on the contact surface, thereby improving the safety of the test button.

[0007] In a possible design, the absolute value of the difference between the first distance and the second distance is greater than or equal to 1 mm. And the absolute value of the difference between the first distance and the second distance is less than or equal to 2 mm.

[0008] Based on the description of the above embodiments, the absolute value of the difference between the first distance and the second distance is greater than or equal to 1 mm and less than or equal to 2 mm, so as to ensure that the handle will not contact the fingers of the operator pressing on the contact surface when the handle is tripped, thereby improving the safety of the test button.

[0009] In a possible design, the operating structure is plugged in the installation window, and one end of the operating structure away from the actuating structure is flush with the first shell surface. A groove is provided at one end of the operating structure away from the actuating structure. The bottom of the groove is configured as the contact surface.

[0010] Based on the description of the above embodiments, the operating structure is plugged in the installation window to improve the sealing performance of the circuit breaker. And one end of the operating structure away from the actuating structure is flush with the first shell surface, making the circuit breaker have integrity and aesthetics. Configuring the bottom of the groove as the contact surface can ensure that the handle will not contact the fingers of the operator pressing on the contact surface when the handle is tripped, thereby improving the safety of the test button.

[0011] In a possible design, the groove is a U-shaped groove.

[0012] Based on the description of the above embodiments, the groove being a U-shaped groove improves the comfort of the operator.

[0013] In a possible design, a first limiting structure is provided on the operating structure. A first limiting structure is provided on the housing. The first limiting structure is connected to the first limiting structure for restricting the moving direction of the test button.

[0014] Based on the description of the above embodiments, the first limiting structure provided on the operating structure is cooperatively connected with the first limiting structure provided on the housing, so that the operating structure can only move in the first direction, restricting the moving direction of the test button, enhancing the stability of the pressing action of the operator during the process of pressing the test button, and thereby improving the safety of the test button during use.

[0015] In a possible design, the first limiting structure includes a first sliding groove and a second sliding groove, and the first sliding groove and the second sliding groove are respectively arranged on both sides of the operating structure along a second direction. Wherein, the second direction is perpendicular to the first direction. The second limiting structure includes a first sliding block and a second sliding block, and the first sliding block and the second sliding block are arranged on the housing along the second direction in an array. Or, the first limiting structure includes a first sliding block and a second sliding block, and the first sliding block and the second sliding block are respectively arranged on both sides of the operating structure along the second direction. The second limiting structure includes a first sliding groove and a second sliding groove, and the first sliding groove and the second sliding groove are respectively arranged on both sides of the operating structure along the second direction. The first sliding block is slidably connected in the first sliding groove, and the second sliding block is slidably connected in the second sliding groove.

[0016] Based on the description of the above embodiments, the first sliding block is slidably connected in the first sliding groove, and the second sliding block is slidably connected in the second sliding groove. The first sliding groove enables the first sliding block to move only along the length direction of the first sliding groove, and the second sliding groove enables the second sliding block to move only along the length direction of the second sliding groove. That is, the operating structure can only move along the first direction, restricting the moving direction of the test button, enhancing the stability of the pressing action of the operator during the process of pressing the test button, and thus improving the safety of the test button during use.

[0017] In a possible design, a second restricted structure is provided on the operating structure. A second limiting structure is provided on the housing. The second limiting structure is connected to the second restricted structure to prevent the test button from disengaging from the installation window along the first direction.

[0018] Based on the description of the above embodiments, the second restricted structure provided on the operating structure is connected to the second limiting structure provided on the housing to prevent the test button from disengaging from the installation window along the first direction, ensuring the integrity of the leakage test function.

[0019] In a possible design, the second restricted structure is a first clamping plate provided on the operating structure, and the first clamping plate is located inside the housing. The second limiting structure is a second clamping plate provided inside the housing. The side of the first clamping plate away from the action structure is clamped with the side of the second clamping plate close to the action structure to prevent the test button from moving to the side away from the action structure.

[0020] Based on the description of the above embodiments, the first clamping plate provided on the operating structure is clamped with the second clamping plate provided on the housing to prevent the test button from moving to the side away from the action structure, thereby preventing the test button from disengaging from the installation window along the first direction, ensuring the integrity of the leakage test function.

[0021] Second aspect, the present application provides a leakage test system, including: a test circuit and the test button described in any one of the above embodiments. After the action structure in the test button acts, it is electrically connected to the test circuit. The operation structure in the test button is used to control the action structure to act.

[0022] Third aspect, the present application provides a circuit breaker, including: a housing, a handle, a tripping structure, and the leakage test system described in the above embodiments. The housing has a receiving cavity. Both the tripping structure and the leakage test system are located in the receiving cavity. The handle is linked with the tripping structure. The leakage test system controls the tripping structure to perform a tripping action, and the tripping structure drives the handle to rotate.

[0023] For the leakage test system and the circuit breaker provided in the above second aspect and the above third aspect, the beneficial effects can refer to the beneficial effects brought by the first aspect and each possible implementation manner of the first aspect, which will not be elaborated here. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts.

[0025] Figure 1 It is a schematic structural diagram of a circuit breaker in the closed state in the embodiment of the present application.

[0026] Figure 2 It is a schematic structural diagram of a circuit breaker in the open state in the embodiment of the present application.

[0027] Figure 3 It is one perspective of the sectional view of the circuit breaker in the embodiment of the present application.

[0028] Figure 4 It is Figure 3 another perspective.

[0029] Figure 5 It is a schematic structural diagram of a test button in the embodiment of the present application.

[0030] Figure 6 It is a schematic structural diagram of an operation structure in the embodiment of the present application.

[0031] Figure 7 It is Figure 4 an enlarged view of part A in

[0032] Figure 8 It isFigure 3 Enlarged view of part B in

[0033] Explanation of reference numerals in the drawings:

[0034] 100 - Circuit breaker;

[0035] 1 - Test button;

[0036] 11 - Actuating structure;

[0037] 12 - Operating structure; 121 - Contact surface;

[0038] 13 - First slider; 14 - Second slider; 15 - First clamping plate;

[0039] 2 - Housing; 21 - First housing surface; 22 - Second housing surface; 23 - Installation window; 24 - First chute; 25 - Second clamping plate;

[0040] 3 - Handle;

[0041] X - First direction; Y - Second direction. Detailed implementation manners

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0044] The terms "including" and "having" and any variations thereof in the specification, claims, and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the existence of a plurality.

[0045] Referring to "embodiments" herein means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase "embodiments" appearing in various positions in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0046] As used herein, the term "and / or" is merely a description of the associated relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0047] The orientation terms used in the following description are the directions shown in the figures and do not limit the specific structure of the present application. For example, in the description of the present application, terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present application.

[0048] In addition, expressions indicating directions such as the X direction, Y direction, and Z direction used to describe the operations and structures of the components of this embodiment are not absolute but relative. Although these indications are appropriate when the components of the battery pack are in the positions shown in the figures, when these positions change, these directions should have different interpretations to correspond to the change.

[0049] In addition, terms such as "first", "second", etc. in the description, claims, or the above-mentioned drawings of the present application are used to distinguish different objects and not to describe a specific order, and may explicitly or implicitly include one or more of such features.

[0050] In the description of the present application, unless otherwise specified, "a plurality of" means two or more (including two). Similarly, "a plurality of groups" means two or more groups (including two groups).

[0051] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, the "connection" or "coupling" of a mechanical structure can refer to a physical connection. For example, a physical connection can be a fixed connection, such as a fixed connection through a fixing member, such as a screw, bolt, or other fixing member; a physical connection can also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection can also be an integral connection, such as a welded, bonded, or integrally formed connection. The "connection" or "coupling" of a circuit structure can refer to not only a physical connection but also an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be indirectly connected through at least one intermediate component as long as the circuit is connected, and it can also be the communication inside two components; a signal connection can refer to not only a signal connection through a circuit but also a signal connection through a media medium, such as radio waves. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0052] As Figure 1 and Figure 2 shown, the circuit breaker 100 provided by the present application may include: a housing 2, a handle 3, a tripping structure (not shown in the figure), and a leakage test system (not shown in the figure).

[0053] Among them, the housing 2 may include a plurality of housing surfaces. Specifically, the housing 2 may include six housing surfaces. Among them, as Figure 3 shown, the first housing surface 21 may be configured as the top surface of the circuit breaker 100, as Figure 4 shown, the second housing surface 22 may be configured as the bottom surface of the circuit breaker 100, the third housing surface (not shown in the figure) may be configured as the front surface of the circuit breaker 100, the fourth housing surface (not shown in the figure) may be configured as the back surface of the circuit breaker 100, the fifth housing surface (not shown in the figure) may be configured as the left side surface of the circuit breaker 100, and the sixth housing surface (not shown in the figure) may be configured as the right side surface of the circuit breaker 100. Based on this, the above six housing surfaces form the housing 2 of the circuit breaker 100 having an accommodation cavity and being airtight.

[0054] Among them, a part of the handle 3 may be disposed outside the housing 2, and another part of the handle 3 may be disposed inside the housing 2. Specifically, the handle 3 may pass through a through hole provided on the top surface so that a part of the handle 3 is located outside the housing 2, and a part of the handle 3 can rotate to different positions within the through hole. Among them, the position of a part of the handle 3 may include the closing position as Figure 1 shown and the opening position as Figure 2 shown.

[0055] Wherein, the tripping structure is arranged inside the housing 2 and is connected to the other part of the handle 3. Specifically, the tripping structure performs a tripping action inside the housing 2, which can drive the handle 3 to rotate, so that a part of the handle 3 rotates from the closing position to the opening position.

[0056] Wherein, the leakage test system is arranged inside the housing 2 and is used to control the tripping structure to perform a tripping action. Specifically, the leakage test system can simulate the leakage current in the circuit breaker 100, and the leakage current in the circuit breaker 100 can cause the tripping structure to perform a tripping action.

[0057] Furthermore, the leakage test system may include: a test circuit and a test button 1.

[0058] Wherein, the test circuit is used to simulate the leakage current in the circuit breaker 100 and control the tripping structure to perform a tripping action.

[0059] Wherein, the test button 1 is electrically connected to the test circuit and is used to control the on / off of the test circuit. Specifically, when the test button 1 is pressed, the test circuit is connected, a simulated leakage current appears in the circuit breaker 100, the tripping structure performs a tripping action, and the handle 3 rotates from the closing position to the opening position.

[0060] As a movable component, the test button 1 will generate displacement during the pressing process and there are some potential safety hazards. Based on this, the present application provides a test button 1, a leakage test system and a circuit breaker 100, which improve the safety of the test button 1. The following will be described in detail in conjunction with Figures 1 - 8 for a detailed description.

[0061] As Figure 2 and Figure 5 shown, the present application provides a test button 1, including: an action structure 11 and an operation structure 12. The action structure 11 is arranged inside the housing 2 of the circuit breaker 100. The operation structure 12 is connected to the action structure 11. The housing 2 includes a first housing surface 21 and a second housing surface 22, the first housing surface 21 and the second housing surface 22 are oppositely arranged along the first direction X, and an installation window 23 is provided on the first housing surface 21. Wherein, the first direction X is the height direction of the circuit breaker 100. The action structure 11 is sleeved in the installation window 23, so that the operation structure 12 is located outside the housing 2. The operation structure 12 is provided with a contact surface 121, and there is a first distance between the contact surface 121 and the second housing surface 22 in the first direction X, there is a second distance between the first housing surface 21 and the second housing surface 22, and the first distance is less than the second distance.

[0062] Wherein, as Figure 5As shown, the action structure 11 can be a trigger rod arranged with the first direction X as the length direction. One end of the trigger rod is close to the above-mentioned test circuit, and the other end of the trigger rod is connected to the operation structure 12. The operation structure 12 drives the trigger rod to move in the direction towards the test circuit until the action structure 11 contacts the test circuit, so as to generate an analog leakage current in the above-mentioned leakage protection system.

[0063] Among them, as Figure 5 shown, the operation structure 12 is connected to the action structure 11. Specifically, the operation structure 12 and the action structure 11 can be an integrally formed structure or a detachable connection structure. This application does not further limit the connection method between the operation structure 12 and the action structure 11.

[0064] Furthermore, the operation structure 12 can be a block structure with a certain thickness in the first direction X. Specifically, in the first direction X, a part of the operation structure 12 is located outside the housing 2 of the circuit breaker 100, and another part is located inside the housing 2 of the circuit breaker 100. It should be noted that for the convenience of understanding, in the following text, a part of the above-mentioned operation structure 12 is called the first part, and another part of the above-mentioned operation structure 12 is called the second part. Among them, the first part is located outside the housing 2 of the circuit breaker 100, which is convenient for the operator to control the action structure 11 located inside the circuit breaker 100 after the circuit breaker 100 is completely assembled. The second part is located inside the housing 2 of the circuit breaker 100, which is convenient for connecting with the action structure 11.

[0065] Among them, the contact surface 121 is arranged on the first part of the operation structure 12, and the operator presses the contact surface 121 to control the operation structure 12 to act in the first direction X.

[0066] Among them, the first housing surface 21 is the top surface of the above-mentioned circuit breaker 100. The operation structure 12 can make the first part located outside the housing 2 through the installation window 23 provided on the top surface, and enable the operation structure 12 to move in the first direction X within the installation window 23.

[0067] Among them, the installation window 23 can be a through hole opened on the top surface.

[0068] Among them, the second housing surface 22 is the bottom surface of the above-mentioned circuit breaker 100, and the bottom surface and the top surface are two surfaces oppositely arranged along the height direction of the circuit breaker 100. The first direction X is the height direction of the circuit breaker 100. Therefore, there can be a first distance between the contact surface 121 and the second housing surface 22 in the first direction X, and there is a second distance between the first housing surface 21 and the second housing surface 22 in the first direction X.

[0069] The second distance is less than the first distance. It can be understood that there is a height difference between the contact surface 121 and the first housing surface 21. And when the bottom surface is used as the height reference, the height of the contact surface 121 is lower than the height of the first housing surface 21.

[0070] The operator presses the contact surface 121, and the operating structure 12 drives the actuating structure 11 to act in the first direction X until the actuating structure 11 contacts the above-mentioned test circuit, so as to generate an analog leakage current in the above-mentioned leakage protection system. The analog leakage current causes the tripping structure in the circuit breaker 100 to trip, thereby driving the handle 3 to rotate from the closed position to the open position. Among them, the process of the handle 3 tripping can be that the handle 3 quickly rotates after leaving the closed position and abuts against the top surface. In the related art, as Figure 2 shown, the handle 3 and the operating structure 12 are arranged adjacent to each other, and the operating structure 12 is located in the tripping direction of the handle 3. Based on this, there is a height difference between the contact surface 121 and the first housing surface 21, preventing the handle 3 from pinching the fingers of the operator pressing on the contact surface 121 when the handle 3 quickly rotates and abuts against the top surface.

[0071] Through the first aspect provided, the distance between the contact surface 121 provided on the operating structure 12 and the second housing surface 22 in the first direction X is less than the distance between the first housing surface 21 and the second housing surface 22 in the first direction X, so that there is a height difference between the contact surface 121 and the first housing surface 21, preventing the handle 3 of the circuit breaker 100 from pinching the fingers of the operator pressing on the contact surface 121 when the handle 3 quickly rotates and abuts against the first housing surface 21, thereby improving the safety of the test button 1.

[0072] In some embodiments, the absolute value of the difference between the first distance and the second distance is greater than or equal to 1 mm. And the absolute value of the difference between the first distance and the second distance is less than or equal to 2 mm.

[0073] The minimum value of the height difference between the contact surface 121 and the first housing surface 21 needs to ensure that the handle 3 does not contact the fingers of the operator pressing on the contact surface 121 when the handle 3 trips.

[0074] The maximum value of the height difference between the contact surface 121 and the first housing surface 21 needs to ensure that it does not affect the installation of the above-mentioned test button 1 and the assembly of other structures in the circuit breaker 100.

[0075] According to the model data of the circuit breaker 100 and the multiple experimental data, it can be obtained that the reasonable range of the height difference between the contact surface 121 and the first housing surface 21 is between 1 mm and 2 mm.

[0076] Based on the description of the above embodiments, the absolute value of the difference between the first distance and the second distance is greater than or equal to 1 mm and less than or equal to 2 mm, so as to ensure that when the handle 3 is tripped, it will not contact the fingers of the operator pressing on the contact surface 121, thereby improving the safety of the test button 1.

[0077] In some embodiments, as Figure 1 and Figure 6 shown, the operating structure 12 is plugged in the installation window 23, and one end of the operating structure 12 far from the actuating structure 11 is flush with the first shell surface 21. A groove is provided at one end of the operating structure 12 far from the actuating structure 11. The bottom of the groove is configured as the contact surface 121.

[0078] The operating structure 12 is plugged in the installation window 23 to improve the sealing performance of the circuit breaker 100. One end of the operating structure 12 far from the actuating structure 11 is flush with the first shell surface 21, that is, the top surface of the first part of the operating structure 12 is flush with the top surface of the circuit breaker 100, making the circuit breaker 100 have integrity and aesthetics.

[0079] Wherein, when the top surface of the first part of the operating structure 12 is flush with the top surface of the circuit breaker 100, the distance between the bottom of the groove provided on the operating structure 12 and the second shell surface 22 in the first direction X is less than the distance between the first shell surface 21 and the second shell surface 22 in the first direction X.

[0080] Therefore, configuring the bottom of the groove as the contact surface 121 can ensure that when the handle 3 is tripped, it will not contact the fingers of the operator pressing on the contact surface 121, thereby improving the safety of the test button 1.

[0081] Based on the description of the above embodiments, the operating structure 12 is plugged in the installation window 23 to improve the sealing performance of the circuit breaker 100. And one end of the operating structure 12 far from the actuating structure 11 is flush with the first shell surface 21, making the circuit breaker 100 have integrity and aesthetics. Configuring the bottom of the groove as the contact surface 121 can ensure that when the handle 3 is tripped, it will not contact the fingers of the operator pressing on the contact surface 121, thereby improving the safety of the test button 1.

[0082] In some embodiments, as Figure 6 shown, the groove is a U-shaped groove.

[0083] Wherein, the orientation of the arc of the U-shaped groove is consistent with the orientation of the fingertips when the operator presses the contact surface 121, which conforms to the ergonomic design to improve the comfort of the operator.

[0084] Based on the description of the above embodiments, the groove is a U-shaped groove, which improves the comfort of the operator.

[0085] In some embodiments, a first limiting structure is provided on the operating structure 12. A first limiting structure is provided on the housing 2. The first limiting structure is connected to the first limiting structure for restricting the moving direction of the test button 1.

[0086] According to the above, the operating structure 12 is sleeved in the installation window (not marked with serial number 23 in the figure), and the operating structure 12 can move in the installation window 23. Obviously, the installation window 23 cannot fix the operating structure 12. The thickness of the first housing surface 21 is limited, and the installation window 23 cannot limit the moving direction of the operating structure 12.

[0087] Based on the description of the above embodiments, the cooperation connection between the first limiting structure provided on the operating structure 12 and the first limiting structure provided on the housing 2 can enable the operating structure 12 to move only along the first direction X, restrict the moving direction of the test button 1, enhance the stability of the pressing action of the operator during the process of pressing the test button 1, and thus improve the safety of the test button 1 during use.

[0088] In some embodiments, as Figure 7 shown, the first limiting structure includes a first sliding groove 24 and a second sliding groove. The first sliding groove 24 and the second sliding groove are respectively arranged on both sides of the operating structure 12 along the second direction Y. Wherein, the second direction Y is perpendicular to the first direction X. The second limiting structure includes a first sliding block 13 and a second sliding block 14. The first sliding block 13 and the second sliding block 14 are arranged along the second direction Y on the housing 2. Or, the first limiting structure includes a first sliding block 13 and a second sliding block 14. The first sliding block 13 and the second sliding block 14 are respectively arranged on both sides of the operating structure 12 along the second direction Y. The second limiting structure includes a first sliding groove 24 and a second sliding groove. The first sliding groove 24 and the second sliding groove are respectively arranged on both sides of the operating structure 12 along the second direction Y. The first sliding block 13 is slidably connected in the first sliding groove 24, and the second sliding block 14 is slidably connected in the second sliding groove.

[0089] When the first sliding groove 24 and the second sliding groove are respectively arranged on both sides of the operating structure 12 along the second direction Y, the first sliding block 13 and the second sliding block 14 are arranged along the second direction Y on the housing 2.

[0090] Wherein, the first sliding block 13, the second sliding block 14 and the housing 2 can be an integrally formed structure or a detachable connection structure. The present application does not make further limitations on this.

[0091] When the first sliding block 13 and the second sliding block 14 are respectively arranged on both sides of the operating structure 12 along the second direction Y, the first sliding groove 24 and the second sliding groove are respectively arranged on both sides of the operating structure 12 along the second direction Y.

[0092] Among them, the first slider 13, the second slider 14 and the operating structure 12 can be an integrally formed structure or a detachable connection structure. This application does not make further limitations in this regard.

[0093] Based on the description of the above embodiments, the first slider 13 is slidably connected in the first chute 24, and the second slider 14 is slidably connected in the second chute. The first chute 24 enables the first slider 13 to move only along the length direction of the first chute 24, and the second chute enables the second slider 14 to move only along the length direction of the second chute. That is, the operating structure 12 can only move along the first direction X, restricting the moving direction of the test button 1, enhancing the stability of the pressing action of the operator during the pressing of the test button 1, and thus improving the safety of the test button 1 during use.

[0094] In some embodiments, a second restricting structure is provided on the operating structure 12. A second limiting structure is provided on the housing 2. The second limiting structure is connected to the second restricting structure to prevent the test button 1 from coming out of the installation window 23 along the first direction X.

[0095] According to the above content, the operating structure 12 moves along the first direction X within the installation window 23. Among them, one side of the installation window 23 is the inside of the housing 2, and the other side is the outside of the housing 2. The operating structure 12 moves along the first direction X towards the inside of the housing 2, causing the action structure 11 to contact the above-mentioned test circuit, so as to generate an analog leakage current in the above-mentioned leakage protection system. The operating structure 12 moves along the first direction X towards the outside of the housing 2, and the test button 1 can be made to come out of the installation window 23 along the first direction X.

[0096] The second restricting structure provided on the operating structure 12 is connected to the second limiting structure provided on the housing 2. Among them, the connection method can be snap connection or abutment connection to restrict the operating structure 12 from moving towards the outside of the housing 2 along the first direction X, thereby preventing the test button 1 from coming out of the installation window 23 along the first direction X.

[0097] Based on the description of the above embodiments, the second restricting structure provided on the operating structure 12 is connected to the second limiting structure provided on the housing 2 to prevent the test button 1 from coming out of the installation window 23 along the first direction X, ensuring the integrity of the leakage test function.

[0098] In some embodiments, as Figure 8 shown, the second restricting structure is the first clamping plate 15 provided on the operating structure 12, and the first clamping plate 15 is located inside the housing 2. The second limiting structure is the second clamping plate 25 provided inside the housing 2. The side of the first clamping plate 15 away from the action structure 11 is clamped with the side of the second clamping plate 25 close to the action structure 11 to prevent the test button 1 from moving towards the side away from the action structure 11.

[0099] Among them, the first clamping plate 15 and the operating structure may be an integrally formed structure or a detachable connection structure. The present application does not make further limitations in this regard.

[0100] Exemplarily, when the first slider 13 and the second slider 14 are arranged on the operating structure 12, the first clamping plate 15, the first slider 13 and the second slider 14 may be an integrated structure.

[0101] Among them, the second clamping plate 25 and the housing 2 may be an integrally formed structure or a detachable connection structure. The present application does not make further limitations in this regard.

[0102] Exemplarily, the second clamping plate 25 may be the first shell surface 21 of the housing 2.

[0103] Based on the description of the above embodiments, the first clamping plate 15 arranged on the operating structure 12 is clamped with the second clamping plate 25 arranged on the housing 2, preventing the test button 1 from moving to the side away from the actuating structure 11, thereby preventing the test button 1 from disengaging from the installation window 23 along the first direction X, ensuring the integrity of the leakage test function.

[0104] Those skilled in the art can understand that although some of the embodiments herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0105] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A test button, applied to a circuit breaker, characterized in that: include: Action structure and operation structure; The action structure is arranged inside the housing of the circuit breaker; The operation structure is connected to the action structure; The housing comprises a first shell surface and a second shell surface, the first shell surface and the second shell surface are arranged opposite to each other along a first direction, and a mounting window is arranged on the first shell surface; Wherein, the first direction is the height direction of the circuit breaker; The action structure is sleeved in the installation window so that the operation structure is located outside the housing; The operating structure is provided with a contact surface; There is a first distance between the contact surface and the second shell surface in the first direction; There is a second distance between the first shell surface and the second shell surface in the first direction, and the first distance is smaller than the second distance.

2. The test button according to claim 1, characterized in that: The absolute value of the difference between the first distance and the second distance is greater than or equal to 1 mm; And the absolute value of the difference between the first distance and the second distance is less than or equal to 2 mm.

3. The test button according to claim 1, characterized in that: The operating structure is blocked in the installation window, and one end of the operating structure away from the action structure is flush with the first shell surface; A groove is provided at one end of the operating structure away from the action structure; The groove bottom of the groove is configured as the contact surface.

4. The test button according to claim 3, characterized in that: The groove is a U-shaped groove.

5. The test button according to claim 1, characterized in that: The operating structure is provided with a first restricted structure; The housing is provided with a first limiting structure; The first limiting structure is connected to the first restricting structure and is used to limit the moving direction of the test button.

6. The test button according to claim 5, characterized in that: The operating structure is provided with a second restricted structure; The housing is provided with a second limiting structure; The second limiting structure is connected to the second limiting structure and is used to prevent the test button from escaping from the installation window along the first direction.

7. The test button according to claim 6, characterized in that: The first limiting structure includes a first sliding groove and a second sliding groove, and the first sliding groove and the second sliding groove are respectively arranged on both sides of the operating structure along the second direction; wherein the second direction is perpendicular to the first direction; The second limiting structure includes a first slider and a second slider, and the first slider and the second slider are arranged on the housing along the second direction; or, The first limiting structure includes a first slider and a second slider, and the first slider and the second slider are respectively arranged on both sides of the operating structure along the second direction; The second limiting structure includes a first sliding groove and a second sliding groove, and the first sliding groove and the second sliding groove are respectively arranged on both sides of the operating structure along the second direction; The first sliding block is slidably connected in the first sliding groove; The second sliding block is slidably connected in the second sliding groove.

8. The test button according to claim 7, characterized in that: The second limiting structure is a first clamping plate provided on the operating structure, and the first clamping plate is located inside the housing; The second limiting structure is a second clamping plate arranged in the housing; A side of the first clamping plate away from the action structure is clamped with a side of the second clamping plate close to the action structure to prevent the test button from moving to a side away from the action structure.

9. A leakage test system, characterized in that: A test button comprising a test circuit and any one of claims 1 to 8; The action structure in the test button is electrically connected to the test circuit after being actuated; The operation structure in the test button is used to control the action structure to perform an action.

10. A circuit breaker, characterized in that: The invention comprises a housing, a handle, a tripping structure and the leakage test system as claimed in claim 9: The housing has a receiving cavity; The tripping structure and the leakage test system are both located in the accommodating cavity; The handle is linked to the tripping structure; The leakage test system controls the tripping structure to perform a tripping action, and the tripping structure drives the handle to rotate.

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