CN214043554U

CN214043554U - Leakage protector

Info

Publication number: CN214043554U
Application number: CN202022586743.5U
Authority: CN
Inventors: 郑春开; 李子平; 赵德生; 李宏青
Original assignee: Kedu Electric Co Ltd
Current assignee: Kedu Electric Co Ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-08-24
Anticipated expiration: 2030-11-10

Abstract

The utility model provides a leakage protector, which comprises a shell, a key piece, a mounting plate, a waterproof pad, a contact piece and a PCB (printed circuit board); the shell defines a first through hole; the PCB is arranged in the shell and is provided with a contact; the key piece is inserted in the first through hole, and the top end of the key piece protrudes towards the outside of the shell; the mounting plate is arranged in the shell and defines a second through hole; the waterproof pad is provided with a supporting body and an assembly body, the assembly body is inserted into the second through hole and can move, the top end of the assembly body is in contact with or connected with the bottom end of the key piece, the supporting body comprises an inclined part and a horizontal part, the inclined part is obliquely arranged downwards, the top end of the inclined part is connected with the outer side wall of the assembly body, the bottom end of the inclined part is connected with the horizontal part, and the horizontal part is arranged between the mounting plate and the shell in a sealing mode; the contact piece is inserted on the assembly body, and the contact surface of the contact piece protrudes out of the assembly body so as to be suitable for contacting the contact; therefore, the leakage protector is simple in structure, convenient to assemble and reliable in protection, and the protection and reset processes of the leakage protector can be reliably realized.

Description

Leakage protector

Technical Field

The utility model relates to a leakage protection technical field, in particular to earth-leakage protector.

Background

With the increasing popularization of household appliances, people pay more and more attention to the use safety of the household appliances, and at present, many household appliances are equipped with an electricity consumption protection device, such as a leakage protector.

The leakage protector in the related art enables the button to reset through the elastic force of the spring, and is complex in structure and troublesome to assemble.

SUMMERY OF THE UTILITY MODEL

Based on above problem, the utility model aims to provide an earth-leakage protector, its simple structure, convenient assembling protects reliably, can realize earth-leakage protector's the process of reseing and protection reliably.

In order to achieve the above object, an embodiment of the present invention provides a leakage protector, which includes: the device comprises a shell, a key piece, a mounting plate, a waterproof pad, a contact piece and a PCB (printed Circuit Board);

the shell defines a first through hole which penetrates through the interior and the exterior of the shell;

the PCB is arranged inside the shell and provided with contacts;

the key piece is inserted in the first through hole, and the top end of the key piece protrudes towards the outside of the shell;

the mounting plate is arranged inside the shell, and a second through hole is defined in the mounting plate;

the waterproof pad is provided with a support body and an assembly body, the assembly body is inserted into the second through hole and can move between a first position and a second position, the top end of the assembly body is in contact with or connected with the bottom end of the key piece, the support body comprises an inclined part and a horizontal part, the inclined part is obliquely arranged downwards, the top end of the inclined part is connected with the outer side wall of the assembly body, the bottom end of the inclined part is connected with the horizontal part, and the horizontal part is arranged between the mounting plate and the shell in a sealing mode;

the contact piece is inserted into the assembly body, and the contact surface of the contact piece protrudes out of the assembly body so as to be suitable for contacting the contact;

when the key piece is pressed, the assembly body moves from the first position to the second position, and the contact piece is communicated with the contact; when the key member is released, the assembly moves from the second position to the first position, and the contact piece is disconnected from the contact.

According to the leakage protector provided by the embodiment of the utility model, through the design of the supporting body and the assembly body on the waterproof pad, when the key piece is pressed, the assembly body drives the contact surface of the contact piece to contact with the contact point and be connected, after the key piece is loosened, the supporting leg of the waterproof pad has elastic reset force to drive the assembly body to drive the contact piece to be disconnected from the contact point, and the key piece returns; so, the contact piece assembles together with waterproof pad for overall structure is simple, and convenient assembling, waterproof pad have reset and safeguard function, can realize earth-leakage protector's the process that resets reliably.

In addition, according to the present invention, the leakage protector provided by the above embodiment further has the following additional technical features:

optionally, the waterproof pad is an elastic member.

Furthermore, a boss is convexly arranged at the top end of the assembly body upwards and is in contact with the bottom end of the key piece.

Optionally, the assembly body is integrally formed with the key member. Therefore, the key piece and the waterproof pad form a whole, parts are reduced, and assembly is further simplified.

Optionally, the assembly body is in a cylindrical shape, and the support body is annularly arranged on the outer peripheral surface of the assembly body.

Optionally, the assembly body has a mounting groove with a downward opening, and the contact piece is inserted into the mounting groove.

Furthermore, a limiting bulge is arranged on the contact piece and is embedded in the mounting groove.

Optionally, a fastener is further included, the fastener fastens the mounting plate and the horizontal portion to the housing.

Drawings

Fig. 1 is a schematic structural diagram of a leakage protector according to an embodiment of the present invention;

fig. 2 is a partial cross-sectional view of a leakage protector according to a first embodiment of the present invention;

fig. 3 is a partial cross-sectional view of another view of the earth-leakage protector according to the first embodiment of the present invention;

fig. 4 is a cross-sectional view of a waterproof pad according to a first embodiment of the present invention;

fig. 5 is a schematic structural view of the waterproof pad and the contact piece according to the first embodiment of the present invention after being assembled;

fig. 6 is a schematic structural diagram of a mounting plate according to a first embodiment of the present invention;

fig. 7 is a partial cross-sectional view of a leakage protector according to a second embodiment of the present invention;

fig. 8 is a cross-sectional view of a waterproof gasket according to a second embodiment of the present invention;

description of reference numerals:

the structure comprises a shell 100, a first through hole 101, a step 1011 and a riveting column 102;

a key piece 200 and a hook 201;

the mounting plate 300, the second through hole 301 and the riveting hole 302;

waterproof pad 400, support 401, inclined part 4011, horizontal part 4012, assembly 402, boss 4021, mounting groove 4022;

a contact piece 500 and a limit protrusion 501;

PCB 600, contacts 601.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The utility model discloses a earth-leakage protector can be earth-leakage protection plug or earth-leakage protection socket, for example figure 1 shows, for earth-leakage protection plug, this earth-leakage protector can external various electrical apparatus as the load.

The earth leakage protector may comprise a casing and a movement assembly, wherein the movement assembly may adopt an existing movement assembly structure. The utility model is mainly characterized in that the structural design of the waterproof pad and the matching mode of the waterproof pad, the key piece and the contact piece are adopted.

Example one

The following describes a leakage protector according to a first embodiment of the present invention with reference to fig. 1 and 6.

As shown in fig. 1, the earth-leakage protector according to the embodiment of the present invention includes a housing 100, a key member 200, a mounting plate 300, a waterproof pad 400, a contact piece 500, and a PCB 600. Wherein the mounting plate 300, the waterproof gasket 400, the contact sheet 500 and the PCB 600 are all disposed in the housing 100; the PCB 600 belongs to a part of the deck assembly; the key member 200 is provided on the housing 100, and may include two buttons, one being a reset button and one being a test button. When the reset button is pressed, the power connection of a load circuit and the power connection of an auxiliary switch circuit in the movement assembly can be completed through the matching of the contact piece 500 on the reset button and the PCB 600; when the test button is pressed, the power breaking of the load circuit and the power breaking of the auxiliary switch circuit in the movement assembly can be completed through the cooperation of the contact piece 500 on the test button and the PCB board 600.

Specifically, in connection with fig. 2, the housing 100 defines a first through-hole 101 that passes through the inside of the housing 100 and the outside of the housing 100; here, the first through holes 101 are provided in two in order to correspond to the reset button and the test button. The PCB 600 is installed inside the housing 100, and the PCB 600 has contacts 601 thereon; wherein, the corresponding reset button and the test button are both provided with a contact 601. The key member 200 is inserted into the first through hole 101 and the top end thereof protrudes to the outside of the housing 100; the portion of the key member 200 protruding to the outside of the case 100 is for the user to press the key member 200. The mounting plate 300 is arranged inside the shell 100, and the mounting plate 300 defines a second through hole 301; the waterproof pad 400 has a support body 401 and an assembly body 402, the assembly body 402 is inserted into the second through hole 301 and is movable between a first position and a second position, the top end of the assembly body 402 contacts or is connected with the bottom end of the key member 200, the support body 401 includes an inclined portion 4011 and a horizontal portion 4012, the inclined portion 4011 is obliquely downward arranged and the top end thereof is connected with the outer sidewall of the assembly body 402, the bottom end thereof is connected with the horizontal portion 4012, and the horizontal portion 4012 is hermetically arranged between the mounting plate 300 and the housing 100; contact sheet 500 is inserted on assembly 402 with its contact surface protruding from assembly 402 to be adapted to contact contacts 601; when the key member 200 is pressed, the assembly 402 moves from the first position to the second position, and the contact piece 500 is connected to the contact 601; when key member 200 is released, assembly 402 moves from the second position to the first position, and contact strip 500 is disconnected from contact 601. That is, when the key member 200 is pressed, the assembly 402 moves down, i.e., from the first position to the second position, and the contact piece 500 and the contact 601 are connected; then, the key member 200 is released, and the inclined portion 4011 of the support body 401 provides a restoring force to the assembly 402, so that the assembly 402 moves upward to return to the initial position when the key member 200 is not pressed, that is, moves from the second position to the first position. The mounting plate 300 is used to fix the waterproof pad 400 in the housing 100. The waterproof pad 400 is arranged to seal the first through hole 101 for protection. Of course, the waterproof pad 400 may be provided with two assemblies 402 and two supports 401 corresponding to the reset button and the test button of the key member 200, and the two supports 401 are connected to each other by the horizontal portion 4012 to form a surface body. To prevent the two buttons from interfering with each other, the middle portion of the surface body may be fixed to the housing 100. In addition, the contact piece 500 may move following the movement of the attachment body 402 so that the contact piece 500 may contact or disengage the contact 601. A contact sheet 500 is inserted into each of the two assemblies 402, and different contact sheets 500 are in contact with different contacts 601 on the PCB 600.

Therefore, according to the leakage protector of the embodiment of the present invention, through the design of the support 401 and the assembly 402 on the waterproof pad 400, when the key 200 is pressed, the assembly 402 drives the contact surface of the contact piece 500 to contact the contact 601 to connect the circuit, and after the key 200 is released, the support 401 of the waterproof pad 400 has the elastic reset force to drive the assembly 402 to drive the contact piece 500 to disconnect from the contact 601, and the key 200 returns; thus, the contact piece 500 is assembled with the waterproof pad 400, so that the overall structure is simple, the assembly is convenient, the waterproof pad 400 has the functions of resetting and protection, and the resetting process of the leakage protector can be reliably realized.

Wherein, optionally, the inner peripheral surface of the first through hole 101 is formed with a step 1011, the outer peripheral surface of the key member 200 is formed with a hook 201, the hook 201 can be clamped on the step 1011, thereby the key member 200 can move downwards when pressed and can move upwards when reset, and the key member 200 is prevented from being separated from the first through hole 101.

According to some embodiments of the present invention, in conjunction with fig. 4, the waterproof pad 400 may be an elastic member, and the whole top surface of the elastic member may seal the first through hole 101, preventing water drops and dust from entering the movement assembly from the second through hole 301. Further, the waterproof pad 400 is configured to have elasticity, which can ensure that the supporting body 401 is elastically deformed downward when the key element 200 is pressed down, and when the key element 200 is released, the supporting body 401 is reset under the action of its own reset force, and at the same time, provides elastic restoring force of the assembly body 402 and the key element 200, so that the key element 200 is restored to the original position.

According to the utility model discloses a further embodiment, the top of assembly body 402 is equipped with boss 4021 to the epirelief, and boss 4021 contacts with the bottom of button 200. The boss 4021 has a certain thickness, and provides a certain buffer force for the key element 200 when pressed down, so as to prevent the contact 601 from being collapsed due to excessive pressing force, thereby affecting the reliability of the connection between the contact 500 and the contact 601.

According to a further embodiment of the present invention, the assembly 402 is cylindrical, and the supporting body 401 is disposed around the outer peripheral surface of the assembly 402, so as to ensure that the supporting body 401 can provide a restoring force to the assembly 402 and the key element 200. Further, the support 401 and the assembly 402 are integrally formed. The two supporting bodies 401 and the two assembling bodies 402 corresponding to the two buttons are also integrally formed, so that the waterproof pad 400 is integrally formed, and the waterproof pad 400 is installed between the first through hole 101 and the installation plate 300 when being assembled.

According to a further embodiment of the present invention, the assembly body 402 has a mounting groove 4022 with a downward opening, and the contact piece 500 is inserted into the mounting groove 4022; when contact sheet 500 is inserted into assembly 402, the contact surface of contact sheet 500 protrudes from assembly 402 and can contact with contact 601.

Optionally, a limiting protrusion 501 is disposed on the contact piece 500, and the limiting protrusion 501 is embedded in the mounting groove 4022. Referring to fig. 3, the limiting protrusion 501 may be a barb disposed on the contact sheet 500, and the barb is embedded in the inner wall of the mounting groove 4022, so that the contact sheet 500 can be firmly assembled with the assembly 402. In this way, the contact sheet 500 is assembled in advance to the waterproof gasket 400, and only the waterproof gasket 400 needs to be mounted in the housing 100 at the time of assembly.

According to some embodiments of the present invention, in conjunction with fig. 1 and 6, a fastener is further included, and the fastener fastens the mounting plate 300 and the horizontal portion 4012 to the housing 100. Wherein the fastener is a rivet post 102 on the housing 100, and the rivet post 102 rivets the mounting plate 300 and the horizontal portion 4012 on the housing 100 through a rivet hole 302 on the mounting plate 300, so that the horizontal portion 4012 is tightly attached between the inner wall of the housing 100 and the mounting plate 300 to seal the same.

Example two

Next, a leakage protector according to a second embodiment of the present invention will be described with reference to fig. 7 and 8.

According to the embodiment of the present invention, the overall structure and principle of the earth leakage protector are substantially the same as those of the first embodiment, the same is not described again, and in this embodiment, the assembly 402 and the key element 200 are integrally formed. That is, the assembly body 402 is inserted into the first through hole 101, and the top end of the assembly body protrudes to the outside of the housing to form the key member 200, so that when the top end of the assembly body 402 is pressed, the assembly body 402 can be directly driven to move downward. Therefore, the key member 200 and the waterproof pad 400 are integrated, parts are reduced, separate installation of the key member 200 and the waterproof pad 400 is reduced, assembly is further simplified, and cost is reduced. Therefore, in this embodiment, during assembly, the top of the assembly 402 is inserted into the first through hole 101, the bottom of the assembly 402 and the contact sheet 500 therein are inserted into the second through hole 301, and then the housing 100, the horizontal portion 4012 and the mounting plate 300 are fastened together through the rivet post 102 of the housing 100 and the rivet hole 302 of the mounting plate 300, so as to complete the installation of the key portion, the contact sheet portion, the guard portion and the reset portion.

In summary, the leakage protector of the present invention has the protection and reset functions of the waterproof pad 400 through the structural design of the supporting body 401 on the waterproof pad 400, and the assembly procedure is simplified; assembly of contact strip 500 to assembly 402 further simplifies the assembly process; the assembly process is further simplified by the key member 200 being integrated with the waterproof pad 400.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A earth-leakage protector, comprising: the device comprises a shell, a key piece, a mounting plate, a waterproof pad, a contact piece and a PCB (printed Circuit Board);

the PCB is arranged inside the shell and provided with contacts;

2. A leakage protector according to claim 1, wherein: the waterproof pad is an elastic piece.

3. A leakage protector according to claim 2, wherein: the top end of the assembly body is provided with a boss in an upward protruding mode, and the boss is in contact with the bottom end of the key piece.

4. A leakage protector according to claim 1 or 2, wherein: the assembly body and the key piece are integrally formed.

5. A leakage protector according to claim 1, wherein: the assembly body is in a cylindrical shape, and the support body is annularly arranged on the outer peripheral surface of the assembly body.

6. A leakage protector according to claim 1, wherein: the assembly body is provided with a mounting groove with a downward opening, and the contact piece is inserted in the mounting groove.

7. A earth-leakage protector as claimed in claim 6, characterized in that: and the contact piece is provided with a limiting bulge, and the limiting bulge is embedded in the mounting groove.

8. A leakage protector according to claim 1, wherein: the mounting plate and the horizontal part are fixedly connected to the shell through fasteners.