CN216902770U - Electric leakage mechanism and circuit breaker - Google Patents

Abstract

The utility model relates to the technical field of electrical equipment, in particular to a leakage mechanism and a circuit breaker; the circuit breaker comprises a leakage mechanism; the leakage mechanism comprises a shell, a buckle, a plug connector and a release, wherein the buckle is connected with the shell; the plug connector is connected with the shell; the release is connected with the plug connector in an inserting mode and is connected with the buckle in a clamping mode. The leakage mechanism can be improved when the leakage phenomenon occurs, so that leakage protection is reliably realized, and user experience is improved.

Description

Electric leakage mechanism and circuit breaker

Technical Field

The utility model relates to the technical field of electrical equipment, in particular to a leakage mechanism and a circuit breaker.

Background

The circuit breaker is mainly used for leakage, overload and short-circuit protection and is a necessary product of a terminal distribution circuit; the leakage protection function of the circuit breaker plays an important role in personal safety of users. When electric leakage occurs, the tripper of the electric leakage mechanism of the circuit breaker can enable the corresponding idle opening mechanism to cut off the circuit, so that the protection effect is realized.

However, the release of the leakage mechanism provided by the related art is difficult to reliably position and easy to release, so that the leakage is easy to not work, the leakage protection fails, and the user experience is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a leakage mechanism and a circuit breaker, wherein a release can be reliably positioned and is not easy to loosen, so that the condition that the leakage mechanism does not work when a leakage phenomenon occurs is improved, namely, leakage protection is reliably realized, and the user experience is improved.

The embodiment of the utility model is realized by the following steps:

in a first aspect, the present invention provides a leakage mechanism comprising:

a housing;

the buckle is connected with the shell;

the plug connector is connected with the shell;

and the tripper is spliced with the plug connector and is clamped with the buckle.

In an optional embodiment, the release comprises a housing and a release body, wherein the release body is arranged on the housing, and the housing is inserted into the plug connector and clamped with the buckle.

In an alternative embodiment, the trip body comprises a push rod that can extend or retract the casing along a set axis; the electric leakage mechanism comprises two plug connectors which are all plugged with the housing, and the two plug connectors are distributed on two sides of the set axis.

In an alternative embodiment, the housing includes a housing body and at least one protrusion, the protrusion is connected to the housing body, the trip body is disposed on the housing body, and the protrusion is inserted into the corresponding plug connector.

In an optional embodiment, the electric leakage mechanism comprises at least two buckles, the housing body is provided with a clamping groove, one buckle is clamped with the protrusion, and the other buckle is clamped with the clamping groove.

In an optional embodiment, the leakage mechanism comprises three buckles, and the three buckles are distributed in a triangular shape; the housing further comprises a convex tooth connected with the housing body, and a buckle is clamped with the convex tooth.

In an alternative embodiment, the catch is provided with a guide surface, with which the trip unit can be slidably engaged, so that the trip unit can be moved into engagement with the catch under the guidance of the guide surface.

In an optional embodiment, the plug connector is a plug-in post, one end of the plug-in post is connected with the housing, the other end of the plug-in post is provided with a guide surface, and the release can be in sliding fit with the guide surface so that the release can move to be plugged with the plug-in post under the guidance of the guide surface.

In an optional implementation mode, the periphery of the insertion column is connected with a limiting rib, and the release can be tightly pressed on the limiting rib.

In a second aspect, the present invention provides a circuit breaker comprising the leakage mechanism of any of the preceding embodiments.

The electric leakage mechanism of the embodiment of the utility model has the beneficial effects that: the leakage mechanism provided by the embodiment of the utility model comprises a shell, a buckle, a plug connector and a release, wherein the buckle and the plug connector are connected with the shell, and the release is plugged with the plug connector and is clamped with the buckle. Therefore, the tripper can be in plug-in fit with the shell and can be in reliable joint fit with the shell, the reliability of the tripper positioned on the shell is improved, the conditions that the tripper drops and loosens easily are improved, when electric leakage occurs, the tripper positioned on the shell reliably can ensure that the corresponding idle opening mechanism is cut off, the condition that the electric leakage mechanism does not work when the electric leakage phenomenon occurs is further improved, electric leakage protection is realized reliably, and user experience is improved.

The circuit breaker of the embodiment of the utility model has the beneficial effects that: the circuit breaker provided by the embodiment of the utility model comprises the electric leakage mechanism, the tripper of the electric leakage mechanism can be accurately and reliably positioned on the shell so as to improve the condition that the tripper is easy to fall and loosen, and when the electric leakage occurs, the tripper reliably positioned on the shell can ensure that the corresponding idle opening mechanism is cut off, so that the condition that the electric leakage mechanism does not work when the electric leakage occurs is improved, the electric leakage protection is reliably realized, and the user experience is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of a leakage mechanism in a first view according to an embodiment of the present invention;

FIG. 2 is an exploded view of a leakage mechanism according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a release in an embodiment of the utility model;

FIG. 4 is a schematic structural diagram of a leakage mechanism in a second view angle according to an embodiment of the present invention;

fig. 5 is an enlarged view of v in fig. 4.

Icon: 010-a leakage mechanism; 100-a housing; 101-a trip assembly; 110-buckle; 111-a guide surface; 120-plug connector; 121-a guide surface; 122-a limiting rib; 200-a release; 210-a trip body; 211-a push rod; 220-a housing; 230-a housing body; 231-a clamping groove; 232-convex teeth; 233-a mating surface; 234-top wall; 235-a first side wall; 236-a second sidewall; 237-a third sidewall; 238-a fourth side wall; 239-avoidance port; 240-projection; 241-plug holes; a-the set axis.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the utility model is used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element which is referred to must have a specific orientation, be constructed in a specific orientation and operation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present embodiment provides a circuit breaker that can be used for leakage, overload, and short-circuit protection.

The circuit breaker comprises an idle opening mechanism (not shown) and a leakage mechanism 010 (shown in fig. 1), wherein the leakage mechanism 010 is assembled on the idle opening mechanism, and in the case of leakage, the leakage mechanism 010 can drive the idle opening mechanism to cut off a circuit, so that a protection effect is realized.

Referring to fig. 1, the leakage mechanism 010 includes a housing 100, a release 200, and a trip assembly 101, the release 200 and the trip assembly 101 are both mounted on the housing 100, the release 200 is in transmission fit with the trip assembly 101, and the trip assembly 101 is configured to be fitted with the idle-trip mechanism; in the case of electrical leakage, the trip unit 200 can trip the trip unit 101, and the idle-trip mechanism is turned off by the trip unit 101.

The structure and the operation principle of the trip assembly 101 are similar to those of the related art, and are not limited herein; the trip unit 200 includes a push rod 211, and when an electric leakage occurs, the push rod 211 can drive the trip unit 101 to trip, so that the tripped trip unit 101 can trip the idle-trip mechanism.

It should be noted that, the trip unit 200 and the trip assembly 101 of the present embodiment are disposed on the same housing 100, so that a gap between the trip unit 200 and the trip assembly 101 is controllable, which is beneficial to shortening a dimension chain length between the trip unit 200 and the trip assembly 101, and ensures that the trip unit 200 can reliably drive the trip assembly 101 to trip when an electric leakage occurs.

The inventor researches and finds that if the positioning of the tripper of the leakage mechanism is unreliable, the tripper is easy to fall off and loosen, so that the tripper is difficult to reliably drive the tripping assembly to trip, namely, the idle opening mechanism cannot be reliably tripped, namely, the leakage mechanism 010 is easy to not act during leakage, so that the leakage protection fails, and the user experience is poor.

Referring to fig. 1 and fig. 2, the release 200 of the present embodiment further includes a buckle 110 and a plug 120, the buckle 110 and the plug 120 are both connected to the housing 100, and the release 200 is inserted into the plug 120 and is connected to the buckle 110 in a clamping manner. Thus, the tripper 200 can be in plug fit with the housing 100 and can also be reliably in clamping fit with the housing 100, so that the reliability of the tripper 200 positioned on the housing 100 is improved, the situation that the tripper 200 is easy to fall and loosen is improved, and when electric leakage occurs, the tripper 200 reliably positioned on the housing 100 can ensure that the tripping assembly 101 is reliably tripped, so that a corresponding idle opening mechanism is cut off, namely, the situation that the electric leakage mechanism 010 does not work when electric leakage occurs is improved, the electric leakage protection is reliably realized, and the user experience is improved; moreover, the tripper 200 is assembled and positioned on the casing 100 in a plugging and clamping manner, and the problem that the tripper 200 is loosened and the like due to the deformation and the like of the casing 100 is solved, so that the reliable action of the tripper 200 in the power leakage process is further ensured.

Further, referring to fig. 3, the trip unit 200 includes a casing 220 and a trip unit body 210, the trip unit body 210 is disposed on the casing 220, and the casing 220 is inserted into the plug 120 and is connected to the buckle 110. By the arrangement, the tripper body 210 and the housing 220 are conveniently assembled into a whole, and the tripper body 210 is assembled on the shell 100 in a modularized manner, so that on one hand, the easy operability of the assembly of the tripper 200 is ensured, on the other hand, the tripper body 210 is ensured to be simultaneously plugged and clamped with the shell 100 through the housing 220, the stability and the accuracy of the assembly of the tripper body 210 on the shell 100 are ensured, and further, the tripper body 210 can reliably act in the case of electric leakage, and further, the idle-opening mechanism can be reliably tripped.

It should be noted that the structure and the operation principle of the trip unit body 210 are similar to those of the related art; the trip unit body 210 includes a push rod 211, and the push rod 211 can be extended or retracted along a set axis a relative to the housing 220 to drive the trip assembly 101 to trip by the movement of the push rod 211, thereby tripping the idle opening mechanism.

The number of the plug connectors 120 and the number of the buckles 110 can be selected according to needs; referring to fig. 1 and fig. 2, the leakage mechanism 010 of the embodiment includes two connectors 120, the two connectors 120 are both inserted into the housing 220, and the two connectors 120 are distributed on two sides of the set axis a. With this arrangement, the two plug members 120 can ensure the reliability of the plug-in fit between the case 220 and the housing 100, and the release body 210 can be reliably positioned in the housing 100 through the case 220.

Alternatively, the two connectors 120 may be symmetrically distributed along the set axis a, or the two connectors 120 may be distributed on two sides of the set axis a in a staggered manner, which is not limited herein.

It should be understood that, in other embodiments, the number of the plug-in units 120 may also be one, three, etc., and is not limited herein.

Referring to fig. 4 and 5, the plug 120 of the present embodiment is a plug, one end of the plug is connected to the housing 100, the other end of the plug is provided with a guide surface 121, and the release 200 can be slidably engaged with the guide surface 121, so that the release 200 moves to be plugged with the plug under the guidance of the guide surface 121; specifically, the cover 220 can be slidably engaged with the guide surface 121, so that the cover 220 can move to be inserted into the insertion post under the guidance of the guide surface 121. With this arrangement, when the trip unit 200 is mounted to the housing 100, the guide surface 121 guides the movement of the trip unit 200, thereby ensuring that the trip unit 200 can be accurately and efficiently mounted to the housing 100.

Further, referring to fig. 2, the periphery of the plug-in post is connected with a limiting rib 122, and the release 200 can be pressed against the limiting rib 122; specifically, the housing 220 is provided with an insertion hole 241, the insertion hole 241 is in insertion fit with the insertion column, and the hole wall of the insertion hole 241 can be tightly pressed on the limiting rib 122, so that an interference fit is formed between the insertion column and the hole wall of the insertion hole 241, and the housing 220 can be ensured to be reliably and stably in insertion fit with the housing 100.

It should be understood that in other embodiments, the plug 120 may also be a rivet or a bolt, etc. connected to the housing 100, and is not limited thereto.

The structure of the housing 220 may be arranged as desired; referring to fig. 1 and fig. 2, the casing 220 of the present embodiment includes a casing body 230 and at least one protrusion 240, the protrusion 240 is connected to the casing body 230, the trip unit body 210 is disposed on the casing body 230, and the protrusion 240 is inserted into the corresponding plug 120. With this arrangement, the trip unit body 210 is reliably positioned and assembled to the housing 100 by the cover 220, and the plug 120 is ensured not to interfere with the structure and operation of the trip unit body 210.

It should be noted that the protrusion 240 can be slidably engaged with the guide surface 121, so that the cover 220 can be moved to be accurately positioned and plugged with the plug column under the guidance of the guide surface 121.

The number of protrusions 240 may correspond to the number of plug-in units 120; in this embodiment, the housing 220 includes two protrusions 240, the two protrusions 240 are connected to the housing body 230, the two protrusions 240 are distributed on two sides of the set axis a, the two protrusions 240 are provided with insertion holes 241, and the two protrusions 240 are inserted into the two insertion components 120 in a one-to-one correspondence manner.

It should be understood that in other embodiments, the number of protrusions 240 may not correspond to the number of plugs 120; for example: the housing body 230 is connected with a protrusion 240, the protrusion 240 is in plug-in fit with one of the plug-in components 120, and the housing body 230 is provided with a through hole in plug-in fit with the other plug-in component 120.

In order to ensure that the release 200 is reliably inserted into and engaged with the housing 100, the leakage mechanism 010 includes at least two catches 110; referring to fig. 5, the housing body 230 is provided with a clamping groove 231, one of the buckles 110 is clamped with one of the protrusions 240, and the other buckle 110 is clamped with the clamping groove 231.

Further, referring to fig. 1 and fig. 2, the leakage mechanism 010 of the embodiment includes three fasteners 110, and the three fasteners 110 are distributed in a triangular shape; the housing 220 further includes a protruding tooth 232 connected to the housing body 230, one of the three buckles 110 is clamped to one of the protrusions 240, another buckle 110 is clamped to the clamping groove 231, and another buckle 110 is clamped to the protruding tooth 232. In this arrangement, the tripper 200 can be positioned more stably on the housing 100 by the three catches 110 arranged in a triangular shape, and the tripper 200 can be surely operated in the event of an electric leakage, thereby surely shutting off the idle-trip mechanism.

It should be noted that the clamping groove 231, the two protrusions 240 and the two buckles 110 are substantially distributed on the same straight line, and the clamping groove 231 and the protruding teeth 232 are distributed on two opposite sides of the housing body 230; with this arrangement, the two plug members 120 and the three catches 110, which are substantially symmetrically distributed, are ensured to accurately and reliably position the trip unit 200 in the casing 100, and further, the trip unit 101 is reliably driven to trip by the trip unit 200 during power leakage, thereby reliably cutting off the idle opening mechanism.

Referring to fig. 5, the buckle 110 is provided with a guide surface 111, and the release 200 can be slidably engaged with the guide surface 111, so that the release 200 moves to be clamped with the buckle 110 under the guidance of the guide surface 111; specifically, the three catches 110 are each provided with a guide surface 111, and the guide surface 111 of one catch 110 can be slidably fitted with the corresponding projection 240, the guide surface 111 of the other catch 110 can be slidably fitted with the housing body 230, and the guide surface 111 of the other catch 110 can be slidably fitted with the convex tooth 232. So configured, the release 200 is ensured to be easily assembled to the housing 100.

Optionally, the protruding tooth 232 is further provided with a mating surface 233, and the mating surface 233 can be slidably mated with the guiding surface 111 of the buckle 110 corresponding to the protruding tooth 232, that is, when the release 200 is assembled to the housing 100, the mating surface 233 can slide on the guiding surface 111 to ensure that the release 200 is easily assembled to the housing 100.

It should be noted that the connection mode of the buckle 110 and the plug 120 with the housing 100 can be selected according to the requirement, and both the buckle 110 and the plug 120 of the embodiment are integrally formed with the housing 100; of course, in other embodiments, the connection manner of the clip 110 and the plug 120 with the housing 100 may also be bonding, plugging, or connecting with a fastener such as a screw, and the like, and is not limited in particular.

It should be further noted that, referring to fig. 3, the structure of the casing body 230 may be set as required; the housing body 230 of the embodiment includes a top wall 234, a first side wall 235, a second side wall 236, a third side wall 237 and a fourth side wall 238, the first side wall 235, the second side wall 236, the third side wall 237 and the fourth side wall 238 are sequentially connected end to end, the first side wall 235, the second side wall 236, the third side wall 237 and the fourth side wall 238 are all connected with the top wall 234, and the trip unit body 210 can be disposed in an installation space enclosed by the top wall 234, the first side wall 235, the second side wall 236, the third side wall 237 and the fourth side wall 238; the first side wall 235 and the third side wall 237 are connected with a protrusion 240, the second side wall 236 is provided with an avoiding opening 239 and a clamping groove 231, the push rod 211 can stretch along a set axis a from the avoiding opening 239, the fourth side wall 238 is connected with a convex tooth 232, and the convex tooth 232 is arranged adjacent to the top wall 234.

The circuit breaker of this embodiment includes the empty opening mechanism and the leakage mechanism 010, and the release 200 of the leakage mechanism 010 can be inserted with the casing 100 through the plug 120, and can also be clamped with the casing 100 through the buckle 110 at the same time.

In summary, the leakage mechanism 010 of the present invention can ensure that the release 200 is accurately and stably positioned on the housing 100, so as to ensure that the release 200 reliably drives the corresponding idle opening mechanism to be turned off when the leakage occurs, that is, the leakage mechanism 010 does not operate when the leakage occurs, thereby reliably realizing leakage protection and improving user experience.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An electrical leakage mechanism, comprising:

a housing (100);

a clasp (110), the clasp (110) being connected with the housing (100);

a plug connector (120), wherein the plug connector (120) is connected with the shell (100);

the release (200), the release (200) with plug connector (120) are pegged graft, and with buckle (110) joint.

2. The leakage mechanism according to claim 1, wherein the release (200) comprises a casing (220) and a release body (210), the release body (210) is disposed on the casing (220), and the casing (220) is inserted into the plug (120) and clamped with the buckle (110).

3. The leakage mechanism of claim 2, wherein the trip body (210) comprises a pushrod (211), the pushrod (211) being extendable or retractable along a set axis (a) to the casing (220); the electric leakage mechanism comprises two plug connectors (120), two plug connectors (120) are all connected with the casing (220) in an inserting mode, and the two plug connectors (120) are distributed on two sides of the set axis (a).

4. The leakage mechanism according to claim 2, wherein the housing (220) comprises a housing body (230) and at least one protrusion (240), the protrusion (240) is connected to the housing body (230), the trip unit body (210) is disposed on the housing body (230), and the protrusion (240) is plugged with the corresponding plug (120).

5. The leakage mechanism according to claim 4, wherein the leakage mechanism comprises at least two of the clips (110), the housing body (230) is provided with a clip groove (231), one of the clips (110) is clipped with the protrusion (240), and the other clip (110) is clipped with the clip groove (231).

6. A leakage mechanism according to claim 5, characterized in that it comprises three said catches (110), said three catches (110) being triangularly arranged; the cover shell (220) further comprises a convex tooth (232) connected with the cover shell body (230), wherein the buckle (110) is clamped with the convex tooth (232).

7. A residual current mechanism according to any of claims 1-6, characterized in that the catch (110) is provided with a guide surface (111), and the trip unit (200) is slidably engaged with the guide surface (111) so that the trip unit (200) is moved into engagement with the catch (110) under the guidance of the guide surface (111).

8. A leakage mechanism according to any of claims 1-6, characterized in that the plug (120) is a plug post, one end of the plug post is connected to the housing (100), the other end of the plug post is provided with a guide surface (121), and the release (200) can be slidably engaged with the guide surface (121) so that the release (200) can be guided by the guide surface (121) to move into plug connection with the plug post.

9. The leakage mechanism according to claim 8, wherein a limiting rib (122) is connected to an outer periphery of the plug-in post, and the release (200) can be pressed against the limiting rib (122).

10. A circuit breaker comprising an electrical leakage mechanism according to any one of claims 1 to 9.

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