Waterproof circuit breaker

Abstract

The utility model discloses a waterproof circuit breaker, which comprises a waterproof heat dissipation shell and a circuit breaker main body arranged in the waterproof heat dissipation shell, the waterproof heat dissipation shell is composed of a door-shaped plate cover, a back side plate installed on the back of the door-shaped plate cover, a bottom plate installed at the bottom of the door-shaped plate cover and a front side plate installed on the front face of the door-shaped plate cover, the front side plate and the door-shaped plate cover are integrally connected, the bottom plate and the back side plate are integrally connected together, and the bottom plate and the back side plate are integrally connected together. A plurality of heat dissipation strip holes are formed in the two side faces of the door-shaped plate cover, arc-shaped heat dissipation strips are installed in the heat dissipation strip holes in an embedded mode, an internal thread screwing sleeve is fixedly installed on the bottom hole edge of the wire hole, a wire harness assembling pipe is installed at the bottom of the internal thread screwing sleeve in a screwing mode, a door hole is formed in the front side plate, and a wire harness is installed in the door hole in a screwing mode. And a door plate is mounted in the door hole. The outdoor low-voltage circuit breaker has the beneficial effects that the outdoor low-voltage circuit breaker is well protected, and the outdoor low-voltage circuit breaker not only has a strong protection effect, but also gives consideration to heat dissipation.

Description

Technical Field

[0001] The utility model relates to the field of circuit breaker devices, in particular to a waterproof circuit breaker. Background Art

[0002] A circuit breaker refers to a switching device that can close, carry and disconnect current under normal circuit conditions and can close, carry and disconnect current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Most low-voltage circuit breakers are used indoors, and a small part is also used outdoors. When used outdoors, an external protective shell is usually used to cover the associated electrical appliances as a whole, and the waterproof effect is poor. The patent application number 202323172278.0 introduces a circuit breaker protective shell with good waterproof properties, which covers the circuit breaker body with a combined cover and is sealed with waterproof gaskets. However, its heat dissipation effect is poor, and long-term use will have adverse effects on the circuit breaker. Utility Model Content

[0003] The purpose of the present utility model is to provide a waterproof circuit breaker in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A waterproof circuit breaker comprises a waterproof heat dissipation housing and a circuit breaker body installed inside the waterproof heat dissipation housing, wherein the waterproof heat dissipation housing is composed of a door-shaped plate cover, a back plate installed on the back of the door-shaped plate cover, a bottom plate installed on the bottom of the door-shaped plate cover, and a front plate installed in front of the door-shaped plate cover, wherein the front plate is integrally connected to the door-shaped plate cover, and the bottom plate and the back plate are integrally connected together. A plurality of heat dissipation strip holes are provided on both sides of the door-shaped plate cover, wherein arc-shaped heat dissipation strips are embedded in the heat dissipation strip holes, an internal threaded screw-on sleeve is fixedly installed on the bottom hole edge of the wire hole, and a wire harness assembly tube is screwed on the bottom of the internal threaded screw-on sleeve, a door hole is provided on the front side plate, and a door plate is installed in the door hole.

[0006] Furthermore, the wiring harness assembly tube is composed of two assembled half sleeves, an assembly limiting ring is fixedly installed on the outer sleeve surface of the assembled half sleeve, an assembly external thread is provided on the assembled half sleeve above the assembly limiting ring, and an assembly inner ring pad is installed on the inner side of the assembled half sleeve.

[0007] Furthermore, the top of the back side of the door-shaped panel cover is integrally connected with a rear edge strip, the bottom surface of the rear edge strip is attached with a rear side pressure pad, and the rear edge strip is pressed onto the top of the back side panel.

[0008] Furthermore, bottom pressure pads are attached to the bottom edges of the front side panels and the door-shaped panel cover.

[0009] Furthermore, a plurality of screw slots are provided at the bottom of the base plate, and screws are installed in the screw slots.

[0010] Furthermore, the top of the door panel is rotatably mounted on the door hole, a stop block is mounted on the bottom edge of the door hole, suction blocks are mounted on the stop block and the door panel, and a pull piece is mounted on the door panel.

[0011] Furthermore, a clip slot is provided on the back side of the back side panel.

[0012] Furthermore, a plurality of arc grooves matching the arc-shaped heat dissipation strips are provided on both sides of the bottom plate.

[0013] The beneficial effect is that the waterproof circuit breaker described in the utility model has better protection for low-voltage circuit breakers used outdoors, not only has a strong protection effect, but also takes heat dissipation into consideration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a waterproof circuit breaker described in the utility model;

[0015] Figure 2 The utility model is a schematic diagram of a wiring harness assembly pipe sleeve of a waterproof circuit breaker.

[0016] The following are the descriptions of the reference numerals:

[0017] 1. Circuit breaker body; 2. Waterproof heat dissipation shell; 21. Front side panel; 22. Door-type panel cover; 23. Bottom plate; 24. Back side panel; 25. Rear edge strip; 26. Card strip groove; 27. Door panel; 28. Stop block; 29. ​​Pull piece; 3. Arc-shaped heat dissipation strip; 4. Bottom pressure pad; 5. Back pressure pad; 6. Paired arc groove; 7. Wire harness assembly tube; 71. Assembly external thread; 72. Assembly limit ring; 73. Assembly half set; 74. Assembly inner ring gasket; 8. Internal thread screw-in sleeve; 9. Suction block. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] like Figure 1-Figure 2 As shown, a waterproof circuit breaker consists of a waterproof heat dissipation housing 2 and a circuit breaker body 1 installed inside the waterproof heat dissipation housing 2;

[0020] The waterproof heat dissipation housing 2 is composed of a door-shaped panel cover 22, a back panel 24 installed on the back of the door-shaped panel cover 22, a bottom panel 23 installed on the bottom of the door-shaped panel cover 22, and a front panel 21 installed in front of the door-shaped panel cover 22. The front panel 21 is integrally connected to the door-shaped panel cover 22, and the bottom panel 23 and the back panel 24 are integrally connected together to form an L-shaped structure.

[0021] A plurality of heat dissipation strip holes are provided on both sides of the door-shaped plate cover 22, and arc-shaped heat dissipation strips 3 are embedded in the heat dissipation strip holes. The outer side of the arc-shaped heat dissipation strip 3 has a concave arc surface and the inner side has a convex arc surface, which increases the direct heat dissipation area inside the waterproof heat dissipation housing 2 and enables rapid heat dissipation.

[0022] There are four wire holes on the bottom plate 23. An internal threaded screw-on sleeve 8 is fixedly installed on the bottom hole edge of the wire hole. A wire harness assembly tube 7 is screwed on the bottom of the internal threaded screw-on sleeve 8 to facilitate the entry and exit of the circuit breaker connection line.

[0023] A door hole is formed on the front side plate 21 , and a door plate 27 is installed in the door hole to facilitate operation of the closing switch of the circuit breaker.

[0024] like Figure 1-Figure 2 As shown, the present invention also discloses the following multiple more optimized specific structures:

[0025] The wire harness assembly tube 7 consists of two assembled half sleeves 73, and an assembled limiting ring 72 is fixedly installed on the outer sleeve surface of the assembled half sleeve 73. An assembled external thread 71 is provided on the assembled half sleeve 73 above the assembled limiting ring 72, and an assembled inner ring pad 74 is installed on the inner side of the assembled half sleeve 73, which is used to perform sleeve pressure binding on the inlet and outlet connecting wires of the circuit breaker to achieve limiting and waterproofing, and is screwed to the internal thread screw-on sleeve 8 through the assembled external thread 71.

[0026] The top of the back side of the door-shaped panel cover 22 is integrally connected with a rear edge strip 25 , the bottom surface of the rear edge strip 25 is attached with a rear side pressure pad 5 , and the rear edge strip 25 is pressed onto the top of the back side panel 24 .

[0027] The bottom pressure pad 4 is attached to the bottom edges of the front side panel 21 and the door panel cover 22 .

[0028] A plurality of screw slots are provided at the bottom of the bottom plate 23 , in which screws are installed for fixing the front side plate 21 and the door-shaped plate cover 22 .

[0029] The top of the door panel 27 is rotatably mounted on the door hole, and a stop block 28 is installed on the bottom hole edge of the door hole. Both the stop block 28 and the door panel 27 are equipped with suction blocks 9 for easy suction together. A pull piece 29 is installed on the door panel 27.

[0030] A clip slot 26 is provided on the back side of the back side plate 24 for clipping onto the groove rail.

[0031] A plurality of arc grooves 6 are provided on both sides of the bottom plate 23 to match the arc-shaped heat dissipation strips 3 so as to avoid blocking the bottom airflow.

[0032] like Figure 1-Figure 2When installing the waterproof circuit breaker shown, first fix the mounting groove rail with screws, then fix the back side plate 24, install the circuit breaker body 1 on the bottom plate 23, and connect the circuit breaker body 1 through the internal threaded screw-on sleeve 8 at the bottom. Then buckle the door-shaped plate cover 22 and the front side plate 21. After fixing with the bottom screws, the 7 assembled half sleeves 73 of the wiring harness assembly tube are assembled and screwed together, so that the wiring harness is fixed and well sealed. The arc-shaped heat dissipation strips 3 on both sides are arc-plate-shaped, which greatly increases the contact surface of internal and external heat exchange and improves the heat dissipation efficiency.

[0033] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements shall fall within the scope of the present invention to be protected.

Claims

1. A waterproof circuit breaker, characterized in that: The utility model comprises a waterproof heat dissipation shell and a circuit breaker body installed inside the waterproof heat dissipation shell, wherein the waterproof heat dissipation shell is composed of a door-shaped plate cover, a back plate installed on the back of the door-shaped plate cover, a bottom plate installed on the bottom of the door-shaped plate cover, and a front side plate installed in front of the door-shaped plate cover, the front side plate is integrally connected to the door-shaped plate cover, the bottom plate and the back side plate are integrally connected together, a plurality of heat dissipation strip holes are opened on both sides of the door-shaped plate cover, arc-shaped heat dissipation strips are embedded in the heat dissipation strip holes, a wire hole is opened on the bottom plate, an internal threaded screw sleeve is fixedly installed on the bottom hole edge of the wire hole, a wire harness assembly tube is screwed on the bottom of the internal threaded screw sleeve, a door hole is opened on the front side plate, and a door panel is installed in the door hole.

2. A waterproof circuit breaker according to claim 1, characterized in that: The wire harness assembly tube consists of two assembled half sleeves, an assembly limiting ring is fixedly installed on the outer sleeve surface of the assembled half sleeve, an assembly external thread is provided on the assembled half sleeve above the assembled limiting ring, and an assembly inner ring pad is installed on the inner side of the assembled half sleeve.

3. The waterproof circuit breaker according to claim 1, characterized in that: The top of the back side of the door-shaped panel cover is integrally connected with a rear edge strip, the bottom surface of the rear edge strip is attached with a rear side pressure pad, and the rear edge strip is pressed onto the top of the back side panel.

4. The waterproof circuit breaker according to claim 1, characterized in that: Bottom pressure pads are attached and installed on the bottom edges of the front side plate and the door-shaped plate cover.

5. The waterproof circuit breaker according to claim 1, characterized in that: A plurality of screw slots are provided at the bottom of the base plate, and screws are installed in the screw slots.

6. The waterproof circuit breaker according to claim 1, characterized in that: The top of the door panel is rotatably mounted on the door hole, a stop block is mounted on the bottom edge of the door hole, suction blocks are mounted on the stop block and the door panel, and a pull piece is mounted on the door panel.

7. The waterproof circuit breaker according to claim 1, characterized in that: The back side of the back side plate is provided with a clamping strip groove.

8. The waterproof circuit breaker according to claim 1, characterized in that: A plurality of arc grooves matching the arc-shaped heat dissipation strips are provided on both sides of the bottom plate.

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