An electric leakage protection device with high waterproof structure

Abstract

The utility model discloses a leakage protection device with high waterproof structure, include: upper cover, base and sealing element, upper cover is equipped with first fixed groove, and base is equipped with second fixed groove, and first fixed groove is linked together with second fixed groove, and one of upper cover and base is equipped with fixed cavity, and fixed cavity is equipped with fixed column and openwork area, and the other of upper cover and base is equipped with the fixed hole that cooperates with fixed column, sealing element part is embedded to first fixed groove, second fixed groove, and the rest part of sealing element is equipped with first locating column and first through -hole, and first locating column inserts to openwork area, and fixed column passes first through -hole, first, through the cooperation of sealing element and first fixed groove, second fixed groove, forms the sealing effect, second, through the junction of closed fixed column, fixed hole, forms the effect of double -sealed, thereby improves the sealed grade, makes leakage protection device adapt to the sudden bubble water or short -time bubble water condition under the special scene.

Description

Technical Field

[0001] This utility model relates to the electrical field, specifically to a leakage current protection device with a highly waterproof structure. Background Technology

[0002] Existing leakage current protection devices are all equipped with sealed structures. However, in the current technology, the protection level of leakage current protection devices can only reach IPX4, which can only cope with daily slight water spray and humid environments. They are completely unsuitable for sudden water immersion or short-term water immersion in special scenarios. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is how to improve the waterproof rating. To this end, a leakage protection device with a high waterproof structure is provided, comprising: a top cover, a base, and a sealing element. The top cover has a first fixing groove, and the base has a second fixing groove. The first fixing groove and the second fixing groove are connected. One of the top cover and the base has a fixing cavity, which includes a fixing post and a hollow area. The other of the top cover and the base has a fixing hole that mates with the fixing post. The sealing element is partially embedded in the first fixing groove and the second fixing groove. The remaining part of the sealing element has a first positioning post and a first through hole. The first positioning post is inserted into the hollow area, and the fixing post passes through the first through hole.

[0004] The remaining portion of the seal is further provided with an extension, which abuts against the outer wall of the fixed cavity.

[0005] The fixing cavity is disposed in the base, the upper cover has a recessed cavity, the fixing hole is disposed in the recessed cavity, the side wall of the fixing cavity corresponds vertically to the side wall of the recessed cavity, the side wall of the recessed cavity has a raised rib on the side facing the fixing cavity, and the sealing member is located between the raised rib and the top surface of the side wall of the fixing cavity; or, the side wall of the fixing cavity has a raised rib on the side facing the recessed cavity, and the sealing member is located between the raised rib and the bottom surface of the side wall of the recessed cavity.

[0006] The upper cover or the base is provided with a second positioning post, and the sealing element is provided with a second through hole that cooperates with the second positioning post.

[0007] The seal is integrally molded.

[0008] The base has threading areas at both ends, and an opening on the top surface of the base, which is closed by the top cover.

[0009] It also includes wire clips and wire clip sleeves, both of which are fixed to the wire threading area.

[0010] It also includes a movement module, which is a modular design and is installed in the receiving cavity formed by the upper cover and the base.

[0011] The mechanism module includes a reset component, a test component, a coil component, a magnetic ring component, and a circuit board. The reset component includes a reset button, a reset rod, and a reset spring. The reset button is connected to the reset rod, and the reset spring cooperates with the reset rod. The test component includes a test button and a test copper pillar. The test button drives the test copper pillar to move toward the circuit board. The coil component and the magnetic ring component are both electrically connected to the circuit board.

[0012] The technical solution of this utility model has the following advantages:

[0013] 1. The present invention provides a leakage protection device with a highly waterproof structure. First, a sealing effect is formed by the cooperation of the sealing element with the first fixing groove and the second fixing groove. Second, a double sealing effect is formed by sealing the connection between the fixing column and the fixing hole, thereby improving the sealing level and making the leakage protection device suitable for sudden water immersion or short-term water immersion in special scenarios.

[0014] 2. The leakage protection device with a highly waterproof structure provided by this utility model has an extension that firstly creates a limiting and fixing effect on the sealing element to prevent the sealing element from shaking, and secondly creates a sealing effect on the fixed cavity so that even if liquid enters the fixed cavity, it will not affect the normal use of the product.

[0015] 3. The leakage protection device with a highly waterproof structure provided by this utility model has a rib that creates a squeezing effect, further improving the sealing effect.

[0016] 4. The leakage protection device with a highly waterproof structure provided by this utility model has a second positioning post that creates a positioning and fixing effect, making the installation of the sealing component more precise.

[0017] 5. The present invention provides a leakage protection device with a highly waterproof structure. This leakage protection device does not adopt a top-bottom corresponding arrangement, which reduces the mating area between the top cover and the base, thereby reducing the area that needs to be sealed and protected, and indirectly increasing the sealing effect.

[0018] 6. The present invention provides a leakage protection device with a highly waterproof structure, wherein the wire clamp and the wire clamp sleeve form a sealing effect in this area.

[0019] 7. The present invention provides a leakage protection device with a highly waterproof structure, which is modular in design, making assembly more convenient. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the leakage protection device with a highly waterproof structure provided by this utility model;

[0022] Figure 2 Exploded view of the leakage protection device with a highly waterproof structure provided by this utility model;

[0023] Figure 3 Exploded view of the movement module provided by this utility model;

[0024] Figure 4 An exploded view of another aspect of the movement module provided by this utility model;

[0025] Figure 5 Exploded views of the top cover, base, and sealing element provided for this utility model;

[0026] Figure 6 A cross-sectional view showing the fit between the top cover, base, and sealing element provided by this utility model;

[0027] Figure 7 for Figure 6 Enlarged view of part A in the middle;

[0028] Figure 8 Exploded views of the top cover and base provided for this utility model;

[0029] Figure 9 Exploded view of the base and seal provided for this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Top cover; 2. Base; 3. Sealing element; 4. Wire clip; 5. Wire clip sleeve; 7. Mechanism module; 101. First fixing groove; 102. Fixing hole; 103. Cavity; 104. Rib; 201. Second fixing groove; 202. Hollowed-out area; 203. Fixing cavity; 204. Fixing post; 205. Second positioning post; 206. Wire threading area; 207. Opening; 301. First positioning post; 302. Extension; 303. First through hole; 304. Second through hole; 70 1. Reset button; 702. Test button; 703. Button sealing gasket; 704. Test copper pillar; 705. Circuit board; 706. Output terminal L assembly; 707. Output terminal N assembly; 708. Ground wire assembly; 709. Moving contact assembly; 710. Coil assembly; 711. Reset lever; 712. Auxiliary spring; 713. Input terminal L assembly; 714. Input terminal N assembly; 715. Conductive component; 716. Bracket; 717. Magnetic ring assembly; 718. Reset spring. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] Example 1

[0037] This embodiment provides a leakage current protection device with a highly waterproof structure, as shown in the attached figure. Figures 1-9 As shown, the device includes: an upper cover 1, a base 2, and a sealing element 3. The upper cover 1 has a first fixing groove 101, which is an annular structure and is located at the connection between the upper cover 1 and the base 2. The base 2 has a second fixing groove 201, which is also an annular structure. The first fixing groove 101 and the second fixing groove 201 are mutually engaged, and when the upper cover 1 and the base 2 are engaged and abutted, the first fixing groove 101 and the second fixing groove 201 are connected. One of the upper cover 1 and the base 2 has a fixing cavity 203. The fixing cavity 203 has a fixing post 204 and a hollow area 202. The fixing post 204 is located inside the fixing cavity 203, and the remaining part of the fixing cavity 203 forms the hollow area 202. Both the upper cover 1 and the base 2 have a fixing hole 102 that mates with the fixing post 204. When the upper cover 1 has a fixing cavity 203, the base 2 has a fixing hole 102; conversely, when the upper cover 1 has a fixing hole 102, the base 2 has a fixing cavity 203. Bolts pass through the fixing post 204 and connect and fix it to the fixing hole 102, thereby achieving the connection and fixation effect between the upper cover 1 and the base 2. The sealing element 3 is partially embedded in the first fixing groove 101 and the second fixing groove 201. The remaining part of the sealing element 3 has a first positioning post 301 and a first through hole 303. The first positioning post 301 is inserted into the hollow area 202, and the fixing post 204 passes through the first through hole 303. Firstly, the sealing element 3 mates with the first fixing groove 101 and the second fixing groove 201 to form a sealing effect. Secondly, by sealing the connection between the fixing post 204 and the fixing hole 102, a double sealing effect is formed, thereby improving the sealing level and making the leakage protection device suitable for sudden water immersion or short-term water immersion in special scenarios.

[0038] Specifically, as shown in the attached document Figures 1-2 , Figures 5-9 As shown, the remaining portion of the seal 3 also includes an extension 302, which extends vertically downwards and abuts against the outer wall of the fixing cavity 203. The extension 302 serves two purposes: firstly, it provides a limiting and fixing effect for the seal 3, preventing it from shaking; secondly, it creates a sealing effect for the fixing cavity 203, ensuring that even if liquid enters the cavity, it will not affect the normal use of the product. In addition, other sealing structures can be used to improve the overall sealing effect.

[0039] Specifically, as shown in the attached document Figures 1-2 , Figures 5-9As shown, the number of first positioning pins 301 corresponding to a fixed cavity 203 can be adjusted according to actual needs. The number of first positioning pins 301 can be one, two, or three, which can be adjusted by those skilled in the art according to actual needs.

[0040] Specifically, as shown in the attached document Figures 1-2 , Figures 5-9 As shown, a fixing cavity 203 is disposed on the base 2, and a recess 103 is provided on the upper cover 1. A fixing hole 102 is disposed in the recess 103. The sidewalls of the fixing cavity 203 and the recess 103 are vertically aligned. This vertical alignment means that when the upper cover 1 and the base 2 are engaged, the sidewalls of the fixing cavity 203 and the recess 103 are coplanar, thus achieving a corresponding effect. A raised rib 104 is provided on the sidewall of the recess 103 facing the fixing cavity 203, and the sealing element 3 is located between the raised rib 104 and the top surface of the sidewall of the fixing cavity 203; alternatively, the raised rib 104 is provided on the sidewall of the fixing cavity 203 facing the recess 103, and the sealing element 3 is located between the raised rib 104 and the bottom surface of the sidewall of the recess 103. The placement of the raised rib 104 can be adjusted according to actual needs. In addition, the side walls of the fixed cavity 203 and the side walls of the recessed cavity 103 are provided with ribs 104. When the upper cover 1 and the base 2 are engaged, the two ribs 104 intersect, which can also improve the sealing effect.

[0041] Specifically, as shown in the attached document Figures 1-2 , Figures 5-9 As shown, the fixing cavity 203 is located inside the second fixing groove 201. Here, "inner side" refers to the side of the second fixing groove 201 away from the outer wall of the base 2, that is, the side facing inward. Similarly, the recessed cavity 103 is also located inside the first fixing groove 101.

[0042] Specifically, as shown in the attached document Figures 1-2 , Figures 5-9 As shown, a fixing cavity 203 and a recessed cavity 103 cooperate to form a fixing area. The number of fixing areas can be adjusted according to actual needs. In this embodiment, six fixing areas are used as an example, and the six fixing areas form two rows to improve the fixing effect. The corresponding number of bolts is also six.

[0043] Specifically, as shown in the attached document Figures 1-2 , Figures 5-9 As shown, the upper cover 1 or the base 2 is provided with a second positioning post 205, and the sealing member 3 is provided with a second through hole 304 that mates with the second positioning post 205. The setting of the second positioning post 205 creates a positioning and fixing effect, making the installation of the sealing member 3 more precise. In this embodiment, the second positioning post 205 is set on the base 2, and here the second positioning post 205 is used for positioning and fixing.

[0044] Specifically, the seal 3 is integrally molded. The seal 3 is made of rubber or other sealing materials.

[0045] Specifically, as shown in the attached document Figures 1-2 , Figures 5-9 As shown, the sealing element 3 includes an outer layer and an inner layer. The outer layer is used to mate with the first fixing groove 101 and the second fixing groove 201. The inner layer is used to mate with the fixing area and the second positioning post 205 to form a two-layer sealing effect.

[0046] Specifically, as shown in the attached document Figures 1-2 , Figures 5-9 As shown, the base 2 has wire-passing areas 206 at both ends. These wire-passing areas 206 are cylindrical with wire-passing channels and do not require sealing. The top surface of the base 2 has an opening 207, which is closed by the top cover 1. This type of leakage protection device does not use a top-bottom symmetrical arrangement, reducing the mating area between the top cover 1 and the base 2, thus reducing the area that needs to be sealed and protecting, and indirectly increasing the sealing effect.

[0047] Specifically, as shown in the attached document Figures 1-2 , Figures 5-9 As shown, it also includes a wire clip 4 and a wire clip sleeve 5, both of which are fixed to the wire threading area 206. The wire clip 4 and the wire clip sleeve 5 form a sealing effect in this area. In this embodiment, the wire clip sleeve 5 is located on the inner side, and the wire clip 4 is located on the outer side, that is, the wire clip 4 is located on the side closer to the external space.

[0048] Specifically, as shown in the attached document Figures 3-4 As shown, it also includes a movement module 7, which is a modular design and is installed within the receiving cavity formed by the upper cover 1 and the base 2. The modular design makes assembly more convenient.

[0049] Specifically, as shown in the attached document Figures 3-4As shown, the mechanism module 7 includes a reset component, a test component, a coil component 710, a magnetic ring component 717, and a circuit board 705. The reset component includes a reset button 701, a reset lever 711, and a reset spring 718. The reset button 701 is connected to the reset lever 711, and the reset spring 718 cooperates with the reset lever 711. The reset lever 711 is used to reset the moving contact component 709. The test component includes a test button 702 and a test copper pillar 704. The test button 702 drives the test copper pillar 704 towards the circuit board 705. The circuit board 705 has a short-circuit test area. When the test copper pillar 704 comes into contact with the short-circuit test area, the test effect is achieved. The coil component 710 is used to control the action of the moving contact component 709. The coil component 710 is electrically connected to the circuit board 705. When a fault occurs in the circuit, the circuit board 705 controls the coil component 710 to operate, achieving the circuit disconnection effect. The magnetic ring assembly 717 is used to detect the current in the circuit. When a circuit fault occurs, it will send a signal to the circuit board 705. The magnetic ring assembly 717 and the circuit board 705 are also electrically connected.

[0050] Specifically, as shown in the attached document Figures 3-4 As shown, the mechanism module 7 also includes a button sealing gasket 703, an output terminal L component 706, an output terminal N component 707, a ground wire component 708, a moving contact component 709, an auxiliary spring 712, an input terminal L component 713, an input terminal N component 714, a conductive component 715, and a bracket 716. The button sealing gasket 703 cooperates with the test button 702 to form a sealing effect. The output terminal L component 706, output terminal N component 707, ground wire component 708, moving contact component 709, input terminal L component 713, input terminal N component 714, and conductive component 715 are connected accordingly to form a circuit coordination effect between the neutral wire, live wire, and ground wire. Here, the output terminal L component 706 cooperates with the input terminal L component 713, and the output terminal N component 707 cooperates with the input terminal N component 714. This is prior art, and those skilled in the art should know how to make electrical connections. In this embodiment, the moving contact component 709 and the conductive component 715 are connected or disconnected to realize the conduction and disconnection of the circuit. The coil assembly 710 works in conjunction with the moving contact assembly 709 to achieve the effect of connecting or disconnecting. The auxiliary spring 712 assists the moving contact assembly 709 in disconnection, improving the disconnection performance. All parts of the mechanism module 7 are mounted on the bracket 716, forming a complete modular structure.

[0051] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A leakage current protection device with a highly waterproof structure, characterized in that, include: The package includes an upper cover (1), a base (2), and a sealing element (3). The upper cover (1) has a first fixing groove (101), and the base (2) has a second fixing groove (201). The first fixing groove (101) and the second fixing groove (201) are connected. One of the upper cover (1) and the base (2) has a fixing cavity (203). The fixing cavity (203) has a fixing post (204) and a hollow area (202). The other of the upper cover (1) and the base (2) has a fixing hole (102) that cooperates with the fixing post (204). The sealing element (3) is partially embedded in the first fixing groove (101) and the second fixing groove (201). The remaining part of the sealing element (3) has a first positioning post (301) and a first through hole (303). The first positioning post (301) is inserted into the hollow area (202), and the fixing post (204) passes through the first through hole (303).

2. The leakage current protection device with a highly waterproof structure according to claim 1, characterized in that, The remaining portion of the seal (3) is further provided with an extension (302), which abuts against the outer wall of the fixed cavity (203).

3. The leakage protection device with a highly waterproof structure according to claim 1, characterized in that, The fixing cavity (203) is disposed on the base (2), the upper cover (1) is provided with a recess (103), the fixing hole (102) is disposed in the recess (103), the side wall of the fixing cavity (203) corresponds vertically to the side wall of the recess (103), the side wall of the recess (103) is provided with a rib (104) on the side facing the fixing cavity (203), and the sealing member (3) is located between the rib (104) and the top surface of the side wall of the fixing cavity (203); or, the side wall of the fixing cavity (203) is provided with a rib (104) on the side facing the recess (103), and the sealing member (3) is located between the rib (104) and the bottom surface of the side wall of the recess (103).

4. The leakage current protection device with a highly waterproof structure according to claim 1, characterized in that, The upper cover (1) or the base (2) is provided with a second positioning post (205), and the sealing member (3) is provided with a second through hole (304) that cooperates with the second positioning post (205).

5. The leakage current protection device with a highly waterproof structure according to claim 1, 2, 3, or 4, characterized in that, The sealing element (3) is integrally molded.

6. The leakage current protection device with a highly waterproof structure according to claim 1, characterized in that, The base (2) has threading areas (206) at both ends, and the top surface of the base (2) has an opening (207). The top cover (1) closes the opening (207).

7. The leakage current protection device with a highly waterproof structure according to claim 6, characterized in that, It also includes a wire clip (4) and a wire clip sleeve (5), both of which are fixed to the wire threading area (206).

8. The leakage current protection device with a highly waterproof structure according to claim 1, characterized in that, It also includes a movement module (7), which is a modular design and is installed in the receiving cavity formed by the upper cover (1) and the base (2).

9. The leakage current protection device with a highly waterproof structure according to claim 8, characterized in that, The mechanism module (7) includes a reset component, a test component, a coil component (710), a magnetic ring component (717), and a circuit board (705). The reset component includes a reset button (701), a reset rod (711), and a reset spring (718). The reset button (701) is connected to the reset rod (711), and the reset spring (718) cooperates with the reset rod (711). The test component includes a test button (702) and a test copper pillar (704). The test button (702) drives the test copper pillar (704) to move toward the circuit board (705). The coil component (710) and the magnetic ring component (717) are both electrically connected to the circuit board (705).

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