一种防水电控箱

Abstract

本实用新型提供了一种防水电控箱，包括中空且底面未封闭的箱体、底板、气囊和穿线罩；底板安装在箱体底面；底板的顶面与箱体的底面之间设置有第一密封环；底板上贯穿设置有通气口；气囊设置在底板底面上，气囊的顶面与底板底面之间设置有第二密封环；底板上贯穿设置有穿线口；穿线罩设置在底板底面，穿线罩顶面与底板底面之间设置有第三密封环，穿线罩上设置有与穿线口连通的出线口，穿线罩内位于穿线口和出线口之间设置有多孔定位组件。本实用新型的优点是通过“底板+第一密封环”和“气囊包裹通气口”的设计，使气囊结构允许内部空气因热胀冷缩而呼吸，同时阻断外部液态水和湿气进入箱内，从原理上解决了“散热与防水矛盾”这一根本问题。

Claims

1. A waterproof electric control box, characterized by, The enclosure includes a hollow, unsealed box (1), a bottom plate (2), an airbag (3), and a wiring cover (4); the bottom plate (2) is installed on the bottom surface of the box (1) and seals the bottom surface of the box (1); a first sealing ring (5) is provided between the top surface of the bottom plate (2) and the bottom surface of the box (1); a vent (21) is provided through the bottom plate (2); the airbag (3) is placed on the bottom surface of the bottom plate (2) and encloses the vent (21), and a sealing ring (5) is provided between the top surface of the airbag (3) and the bottom surface of the bottom plate (2). There is a second sealing ring (6); a wire-passing port (22) is provided through the bottom plate (2); the wire-passing cover (4) is provided on the bottom surface of the bottom plate (2) and wraps the wire-passing port (22) inside, and a third sealing ring (7) is provided between the top surface of the wire-passing cover (4) and the bottom surface of the bottom plate (2). The wire-passing cover (4) is provided with an outlet (41) communicating with the wire-passing port (22). A multi-hole positioning component (8) for positioning multiple wires is provided inside the wire-passing cover (4) between the wire-passing port (22) and the outlet (41).

2. The weatherproof electrical control box of claim 1, wherein, The bottom inner wall of the box (1) is provided with a positioning step (11) along the circumferential direction; the top surface of the bottom plate (2) is provided with a positioning boss (23) that is positioned and cooperates with the positioning step (11); the outer edge of the top surface of the positioning boss (23) is provided with a first sealing ring groove (24) along the circumferential direction; the first sealing ring (5) is embedded in the first sealing ring groove (24). When the bottom plate (2) is fixed on the box (1), the top surface of the first sealing ring (5) abuts against the step surface of the positioning step (11), and the bottom surface of the first sealing ring (5) abuts against the bottom of the groove of the first sealing ring groove (24). The top surface and the top surface of the first sealing ring (5) are provided with sealing reinforcing ribs (50) along the circumferential direction.

3. The weatherproof electrical control box of claim 2, wherein, The first sealing ring groove (24) is provided with a plurality of first screw holes (241) arranged at intervals along the circumference; the first sealing ring (5) is provided with a first through hole (51) corresponding to the position of the first screw hole (241) along the circumference; the positioning step (11) is provided with a second through hole (12) corresponding to the position of the first through hole (51) along the circumference. Each first screw (101) is fixedly connected to the first screw hole (241) by passing through the second through hole (12) and the first through hole (51) in sequence, thereby sealing and fixing the box (1) and the bottom plate (2) together.

4. The weatherproof electrical control box of claim 3, wherein, The top outer edge of the airbag (3) is integrally formed with a positioning protrusion (31) along the circumferential direction; a plurality of third through holes (311) are provided through the positioning protrusion (31) along the circumferential direction; the bottom surface of the base plate (2) is provided with an airbag positioning groove (25) that is positioned and matched with the positioning protrusion (31); the air vent (21) is provided through the bottom of the airbag positioning groove (25); the outer edge of the bottom of the airbag positioning groove (25) is provided with a second screw hole (251) corresponding to the position of the third through hole (311) along the circumferential direction; by passing through the third through hole (311) and fixing it to the second screw hole (251) with each second screw (102), the airbag (3) and the base plate (2) are sealed and fixed together; the second sealing ring (6) is integrally formed on the top surface of the positioning protrusion (31); and the second sealing ring (6) is sealed between the top surface of the positioning protrusion (31) and the bottom of the airbag positioning groove (25).

5. The waterproof electrical control box according to claim 4, characterized in that, It also includes an annular airbag pressure plate (32); the airbag pressure plate (32) is sleeved on the airbag (3), and a fourth through hole (321) corresponding to the third through hole (311) is provided on the airbag pressure plate (32) along the circumferential direction; each second screw (102) passes through the fourth through hole (321) and the third through hole (311) in sequence and is fixedly connected to the second screw hole (251), so that the airbag pressure plate (32) presses and seals the positioning protrusion (31) in the airbag positioning groove (25).

6. The weatherproof electrical control box of claim 1, wherein, The multi-hole positioning component (8) includes a wire-locking sealing block (81) and a fixing plate (82); a limiting boss (811) is provided on the outer peripheral wall of the wire-locking sealing block (81) along the circumferential direction; a limiting step (411) is provided on the inner peripheral wall of the outlet (41) along the circumferential direction to limit and cooperate with the limiting boss (811); the wire-locking sealing block (81) is installed in the outlet (41), and a plurality of first wire holes (812) are provided on the wire-locking sealing block (81); the fixing plate (82) is fixedly connected to the inner wall of the wire guide (4) by a third screw (103), and limits and fixes the wire-locking sealing block (81) on the wire guide (4); a second wire hole (821) is provided on the fixing plate (82) to be aligned with the first wire hole (812).

7. The weatherproof electrical control box of claim 6, wherein, The wire-locking sealing block (81) is made of rubber and is composed of two symmetrically arranged semi-sealing blocks. The semi-sealing blocks are provided with a number of first half holes of different diameters. Two corresponding first half holes are combined to form a circular first wire hole (812). The fixing plate (82) is composed of two symmetrically arranged semi-pressing plates and is provided with a second half hole corresponding to the first half hole. Two corresponding second half holes are combined to form a circular second wire hole (821).

8. The weatherproof electrical control box of claim 1, wherein, The base plate (2) is made of aluminum, and the bottom surface of the base plate (2) is integrally formed with a number of spaced heat sinks (26).

9. The weatherproof electrical control box of claim 1, wherein, It also includes an electrical control board and a power socket (9), the electrical control board is set on the inner wall of the base plate (2), the power socket (9) is set on the outer wall of the base plate (2), and the inner end of the power socket (9) extends to the inner side of the base plate (2) and is electrically connected to the electrical control board.

10. The weatherproof electrical control box of claim 9, wherein, The base plate (2) is also provided with at least one wiring hole (20) for connecting external electrical components to the control board.

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