A junction box with moisture-proof lining

Abstract

The utility model discloses a junction box with a moisture-proof lining, comprising a junction box body, an EPE foam lining that is clamped and arranged in the inner cavity of the junction box body, and a box cover that is installed on the top port of the junction box body through screws; plastic buckles are fixed on the front and rear side walls of the inner cavity of the junction box body; in the utility model, the moisture-proof effect is achieved by the anti-permeability performance of the EPE foam lining itself, thereby protecting the wiring terminals and wiring harness ends covered by the EPE foam lining; and in order to prevent moisture in the wall from entering through gaps and accumulating in the interior of the junction box body, the servo motor in the inside of the round tube is started, and the fan blades are driven by the rotating shaft to discharge the air entrained with moisture in the interior of the junction box body from the filter plate to the outside, thereby achieving the effect of drying the wiring terminals in the interior of the junction box body, and then assisting the EPE foam lining to moisture-proof the components and circuits in the interior of the junction box body.

Description

Technical Field

[0001] The utility model relates to the technical field of moisture-proof junction boxes, in particular to a junction box with a moisture-proof lining. Background Art

[0002] Junction boxes are an important part of the electrical wiring system of homes and buildings. These boxes are usually made of metal or plastic, and their purpose is to place and protect the electrical connections of the safety structure. For the moisture-proof aspect of the junction box, it usually relies on the sealing strip between the box body and the box cover, and the box body is generally embedded in the wall. When the wall is damp and produces moisture, the moisture will penetrate the plastic box body and enter the box body, and then the moisture will adhere to the wiring terminals in the box body. As the oxidation reaction proceeds, the copper sheets and screws on the wiring terminals will accelerate the corrosion process due to the participation of moisture in the oxidation reaction, and the wiring harness will have poor contact, short circuit and other phenomena; and the main reason for the accelerated corrosion is that the existing junction box is mostly made of plastic. In the case of no waterproof coating on the plastic, the moisture in the damp wall will penetrate into the junction box; in addition, the moisture in the damp wall will also enter the junction box along the gap of the wiring tube. Once the moisture enters the junction box, it will be difficult to dry and evaporate naturally; therefore, in view of the above-mentioned defects, the technicians in this field now propose a junction box with a moisture-proof lining. Utility Model Content

[0003] The purpose of the utility model is to provide a junction box with a moisture-proof lining to solve the above-mentioned deficiencies in the technology.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising a junction box body, an EPE foam liner clamped in the inner cavity of the junction box body, and a box cover mounted on the top port of the junction box body by screws;

[0005] Plastic buckles are fixed on the front and rear side walls of the inner cavity of the junction box body, and card slots for engaging with the plastic buckles are provided on the front and rear outer surfaces of the EPE foam liner;

[0006] The box cover also includes an exhaust assembly for exhausting air outward, wherein the exhaust assembly includes a circular tube fixed inside the box cover, a servo motor fixed in the inner cavity of the circular tube, a rotating shaft fixed to the output shaft of the servo motor through a coupling, and a plurality of fan blades connected to the outer ring of the rotating shaft.

[0007] As a preferred solution of the utility model, wiring tubes are installed on both side walls of the junction box body, and wiring terminals are arranged on the bottom of the inner cavity of the junction box body.

[0008] As a preferred solution of the utility model, through holes for the wiring tube to pass through are opened on both side surfaces of the EPE foam liner, and the outer surface of the EPE foam liner is in close contact with the inner cavity side wall of the junction box body.

[0009] As a preferred solution of the utility model, a round hole for fixing and installing the round tube is opened in the interior of the box cover.

[0010] As a preferred solution of the utility model, a plurality of fixing rods are arranged in a ring array on the inner ring side wall of the circular tube, and the ends of the fixing rods close to each other are fixed to the outer shell surface of the servo motor.

[0011] As a preferred solution of the utility model, the power input terminal of the servo motor is fixedly connected to the external power supply through an electric wire.

[0012] As a preferred solution of the utility model, a filter plate covering the top port of the circular tube is mounted on the top opening of the circular hole by screws.

[0013] As a preferred solution of the utility model, cavities for the plastic buckle to move are provided on the front and rear inner cavity side walls of the junction box body.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] In the utility model, the anti-penetration property of the EPE foam lining itself is used to achieve a moisture-proof effect, thereby protecting the wiring terminals and the wiring harness ends covered by the EPE foam lining; and in order to prevent moisture in the wall from entering through the gaps and accumulating inside the junction box body, the servo motor inside the round tube is started, and the fan blades are driven by the rotating shaft to discharge the air entrained with moisture inside the junction box body from the filter plate to the outside, thereby achieving the effect of drying the wiring terminals inside the junction box body, and then assisting the EPE foam lining to moisture-proof the devices and circuits inside the junction box body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the appearance structure of the junction box;

[0018] Figure 2 It is a schematic diagram of the moisture-proof lining structure in the junction box;

[0019] Figure 3Schematic diagram of the exploded structure of the box cover.

[0020] Description of reference numerals:

[0021] 1. Junction box body; 2. Box cover; 3. Wiring tube; 4. EPE foam lining; 5. Plastic buckle; 6. Card slot; 7. Wiring terminal; 8. Round hole; 9. Fan blade; 10. Rotating shaft; 11. Servo motor; 12. Fixing rod; 13. Filter plate; 14. Round tube. DETAILED DESCRIPTION

[0022] In order to more clearly explain and illustrate the technical solution and implementation of the present utility model, several preferred specific embodiments for implementing the technical solution of the present utility model are introduced below.

[0023] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application and use. It should be understood that in all these figures, the same or similar figure numbers indicate the same or similar parts and features. The various figures only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may use exaggerated methods to illustrate the relevant details or structures of the embodiments of the present disclosure. The various publications, patents and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connection" and "fixed" should be understood in a broad sense, for example, "connection" can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the description of this specification, it should be understood that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0026] Embodiment 1

[0027] Refer to the instruction manual Figure 1 To Attachment Figure 3 , a junction box with a moisture-proof lining:

[0028] The invention comprises a junction box body 1, an EPE foam liner 4 which is clamped in the inner cavity of the junction box body 1, and a box cover 2 which is installed on the top port of the junction box body 1 by screws; plastic buckles 5 are fixed on the front and rear side walls of the inner cavity of the junction box body 1, and the front and rear outer surfaces of the EPE foam liner 4 are provided with clamping grooves 6 which are clamped with the plastic buckles 5. Wiring tubes 3 are installed on both side walls of the junction box body 1, and wiring terminals 7 are arranged on the bottom of the inner cavity of the junction box body 1.

[0029] Through holes are provided on both side surfaces of the EPE foam liner 4 for the wiring tube 3 to pass through, and the outer surface of the EPE foam liner 4 is in close contact with the inner cavity side wall of the junction box body 1, and cavities are provided on the front and rear inner cavity side walls of the junction box body 1 for the plastic buckle 5 to move.

[0030] Embodiment 2

[0031] Based on the first embodiment, refer to the attached Figure 1 To Attachment Figure 3 , a junction box with a moisture-proof lining:

[0032] The box cover 2 also includes an exhaust assembly for exhausting air outward, wherein the exhaust assembly includes a circular tube 14 fixed inside the box cover 2, a servo motor 11 fixed in the inner cavity of the circular tube 14, a rotating shaft 10 fixed to the output shaft of the servo motor 11 through a coupling, and a plurality of fan blades 9 connected to the outer ring of the rotating shaft 10. A circular hole 8 is opened inside the box cover 2 for fixing the circular tube 14.

[0033] A plurality of fixing rods 12 are arranged in a circular array on the inner side wall of the circular tube 14, and the ends of the fixing rods 12 close to each other are fixed to the outer shell surface of the servo motor 11. The power input end of the servo motor 11 is fixedly connected to the external power supply through wires, and a filter plate 13 covering the top port of the circular tube 14 is installed on the top opening of the circular hole 8 by screws.

[0034] Refer to the instruction manual Figure 1 To Attachment Figure 3 , the working principle of this utility model:

[0035] During the use of the junction box body 1, the EPE foam liner 4 is snapped into the inner cavity of the junction box body 1 through the card slot 6 on its surface and the plastic buckle 5, and the EPE foam liner 4 has a moisture-proof effect through its own anti-penetration performance, thereby protecting the terminal 7 and the wiring harness end covered by the EPE foam liner 4; and in order to prevent moisture in the wall from entering through the gap and accumulating in the interior of the junction box body 1, the servo motor 11 in the circular tube 14 is started, and the fan blades 9 are driven by rotating the rotating shaft 10 to discharge the air entrained with moisture in the interior of the junction box body 1 from the filter plate 13 to the outside, thereby achieving the effect of drying the terminal 7 in the interior of the junction box body 1, and then assisting the EPE foam liner 4 to moisture-proof the devices and circuits in the interior of the junction box body 1.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A junction box with a moisture-proof lining, characterized in that: The invention comprises a junction box body (1), an EPE foam liner (4) clamped in the inner cavity of the junction box body (1), and a box cover (2) mounted on the top port of the junction box body (1) by means of screws; Plastic buckles (5) are fixed on the front and rear side walls of the inner cavity of the junction box body (1), and card slots (6) for engaging with the plastic buckles (5) are provided on the front and rear outer surfaces of the EPE foam liner (4); The box cover (2) also includes an exhaust assembly for exhausting air outward, wherein the exhaust assembly includes a circular tube (14) fixed inside the box cover (2), a servo motor (11) fixed in the inner cavity of the circular tube (14), a rotating shaft (10) fixed to the output shaft of the servo motor (11) via a coupling, and a plurality of fan blades (9) connected to the outer ring of the rotating shaft (10).

2. A junction box with a moisture-proof lining according to claim 1, characterized in that: Wiring tubes (3) are installed on both side walls of the junction box body (1), and wiring terminals (7) are arranged on the bottom of the inner cavity of the junction box body (1).

3. A junction box with a moisture-proof lining according to claim 1, characterized in that: Through holes for the wiring tube (3) to pass through are provided on both side surfaces of the EPE foam liner (4), and the outer surface of the EPE foam liner (4) is in close contact with the inner cavity side wall of the wiring box body (1).

4. The junction box with a moisture-proof lining according to claim 1, characterized in that: A circular hole (8) for fixing and installing the circular tube (14) is provided in the interior of the box cover (2).

5. The junction box with a moisture-proof lining according to claim 1, characterized in that: A plurality of fixing rods (12) are arranged in a circular array on the inner ring side wall of the circular tube (14), and ends of the fixing rods (12) close to each other are fixed to the outer shell surface of the servo motor (11).

6. The junction box with a moisture-proof lining according to claim 1, characterized in that: The power input end of the servo motor (11) is fixedly connected to an external power source via an electric wire.

7. The junction box with a moisture-proof lining according to claim 4, characterized in that: A filter plate (13) covering the top port of the circular tube (14) is mounted on the top opening of the circular hole (8) by means of screws.

8. The junction box with a moisture-proof lining according to claim 1, characterized in that: The front and rear inner cavity side walls of the junction box body (1) are both provided with cavities for the plastic buckle (5) to move.

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