Novel waterproof structure

Abstract

The utility model relates to the field of photovoltaic junction boxes, in particular to a novel waterproof structure, which comprises a box body and a fixed seat, the left end part of the box body is provided with a wire harness half hole I, the fixed seat is clamped and matched with the left end part of the box body, the fixed seat is internally provided with a wire harness half hole II matched with the wire harness half hole I, and the fixed seat is internally provided with an upper half glue pouring groove. The two ends of the upper half glue filling groove are communicated with first upward glue filling channels, the first glue filling channels extend out of the fixing base, a lower half glue filling groove is formed in the first wire harness half hole, the lower half glue filling groove and the upper half glue filling groove form an annular glue filling groove, the two ends of the lower half glue filling groove are communicated with second upward glue filling channels, and the second glue filling channels and the first glue filling channels form glue filling channels. The glue pouring channel downwards pours glue into the lower annular glue pouring groove, and the glue is cured to form a waterproof layer which is attached to and surrounds the outer ring of the wire harness, so that the waterproof performance of the wire harness at the end part of the junction box is improved, the overall waterproof performance of the junction box is improved, and the safety and the service life are ensured.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic junction boxes and relates to a novel waterproof structure. Background Art

[0002] The photovoltaic junction box is a key component connecting solar panels and solar charging control devices. Its primary function is to protect and connect the solar photovoltaic panels and conduct the current generated by them. With the development of the photovoltaic industry, market requirements for junction box performance are becoming increasingly stringent, including current carrying capacity, heat dissipation capacity, and system stability. Existing junction box terminals typically use a clip-on clamping method to secure the wiring harness. This results in insufficient sealing, making it easy for water to enter through this location, potentially affecting the internal diode components.

[0003] Therefore, in order to solve the deficiencies in the prior art, a new waterproof structure with a simple structure needs to be designed. Utility Model Content

[0004] The utility model provides a novel waterproof structure to solve the problems of the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions: A new waterproof structure includes: a box body and a fixing seat, a wiring harness half hole 1 is provided at the left end portion of the box body, the fixing seat is snap-fitted and matched to the left end portion of the box body, a wiring harness half hole 2 is provided inside the fixing seat to match the wiring harness half hole 1, the wiring harness half hole 1 and the wiring harness half hole 2 constitute a wiring harness through hole, an upper half glue pouring groove is provided inside the fixing seat, the two ends of the upper half glue pouring groove are connected with an upward glue pouring channel 1, the glue pouring channel 1 extends to the outside of the fixing seat, a lower half glue pouring groove is provided inside the wiring harness half hole 1, the lower half glue pouring groove and the upper half glue pouring groove constitute an annular glue pouring groove, the two ends of the lower half glue pouring groove are connected with an upward glue pouring channel 2, the glue pouring channel 2 and the glue pouring channel 1 constitute a glue pouring channel.

[0006] As a further improvement, two groups of the annular glue pouring grooves and glue pouring channels are arranged at intervals.

[0007] As a further improvement, a groove 1 is provided in the middle of the inner side of the first glue pouring channel and is connected to the upper glue pouring groove. A groove 2 is provided in the middle of the outer side of the second glue pouring channel and is connected to the lower glue pouring groove.

[0008] As a further improvement, the diameter of the wiring harness through hole is arranged in a stepped manner, and the inner diameter of the outer end portion of the wiring harness through hole is smaller than the inner diameter of the inner end portion of the wiring harness through hole.

[0009] As a further improvement, the box body is provided with trapezoidal slots at intervals, and the fixing seat is snapped into the trapezoidal slots.

[0010] Compared with the existing technology, the new waterproof structure of the utility model has the following beneficial effects:

[0011] The glue pouring channel pours glue downward, passes through the glue pouring channel 2 and the glue pouring channel 1, and enters the lower half glue pouring groove and the upper half glue pouring groove of the lower annular glue pouring groove. After curing, a waterproof layer is formed that fits around the outer circle of the wiring harness, thereby improving the waterproof performance of the wiring harness position at the end of the junction box, and then the overall waterproof performance of the junction box, ensuring the safety and service life of the internal diode components and other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model

[0013] Figure 2 This is a schematic diagram of the structure of the box body in this utility model

[0014] Figure 3 This is a schematic diagram of the structure of the fixing seat in the utility model

[0015] Figure 4 A structural diagram of the fixing seat of the utility model from another perspective

[0016] Figure 5 This is a structural diagram of a local position of the utility model

[0017] In the figure, 1-box body, 11-wiring harness half hole one, 12-lower half glue pouring groove, 13-glue pouring channel two, 2-fixing seat, 21-wiring harness half hole two, 22-upper half glue pouring groove, 23-glue pouring channel one, 3-wiring harness through hole, 4-annular glue pouring groove, 5-glue pouring channel, 61-groove one, 62-groove two, 71-trapezoidal slot. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0019] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0020] Below with reference to the embodiment and the attached Figures 1 to 5 , the technical solution of the utility model is further elaborated.

[0021] Example 1

[0022] A novel waterproof structure comprises: a box body 1 and a fixing seat 2, wherein a wiring harness half hole 11 is provided at the left end portion of the box body 1, and the fixing seat 2 is snap-fitted and matched to the left end portion of the box body 1, a wiring harness half hole 21 is provided inside the fixing seat 2 to match the wiring harness half hole 11, and the wiring harness half hole 11 and the wiring harness half hole 21 constitute a wiring harness through-hole 3, an upper half glue pouring groove 22 is provided inside the fixing seat 2, and both ends of the upper half glue pouring groove 22 are connected to an upward glue pouring channel 23, and the glue pouring channel 23 extends to the outside of the fixing seat 2, a lower half glue pouring groove 12 is provided inside the wiring harness half hole 11, and the lower half glue pouring groove 12 and the upper half glue pouring groove 22 constitute an annular glue pouring groove 4, and both ends of the lower half glue pouring groove 12 are connected to an upward glue pouring channel 2 13, and the glue pouring channel 2 13 and the glue pouring channel 23 constitute a glue pouring channel 5.

[0023] like Figures 1 to 5 As shown, the working principle of the present invention is as follows: the wiring harness is first loaded into the wiring harness half hole 11 of the box body 1, and then the fixing seat 2 is snap-fitted and pressed into the left end portion of the box body 1 so that the wiring harness is located in the wiring harness through hole 3, and then glue is poured downward from the glue pouring channel 5, and passes through the glue pouring channel 2 13 and the glue pouring channel 1 23 to enter the lower half glue pouring groove 12 and the upper half glue pouring groove 22 of the lower annular glue pouring groove 4. After curing, a waterproof layer is formed that fits around the outer circle of the wiring harness, thereby improving the waterproof performance of the wiring harness position at the end of the junction box, and then the overall waterproof performance of the junction box, ensuring the safety and service life of the internal diode components and other components.

[0024] As a further preferred embodiment, two groups of the annular glue pouring grooves 4 and the glue pouring channels 5 are arranged at intervals, and a double-layer waterproof layer is realized by the two groups of annular glue pouring grooves 4 and the glue pouring channels 5, thereby further improving the waterproof performance.

[0025] As a further preferred embodiment, a groove 1 (61) is provided in the middle of the inner side of the first glue pouring channel (23) to communicate with the upper glue pouring trough (22), and a groove 2 (62) is provided in the middle of the outer side of the second glue pouring channel (13) to communicate with the lower glue pouring trough (12). The diameter of the first glue pouring channel (23) is larger than that of the upper glue pouring trough (22), which increases the speed of glue pouring, allowing glue to flow along the groove 1 (61) to fill the upper glue pouring trough (22). The diameter of the second glue pouring channel (13) is larger than that of the lower glue pouring trough (12), which increases the speed of glue pouring, allowing glue to flow along the groove 2 (62) to fill the lower glue pouring trough (12).

[0026] As a further preferred embodiment, the diameter of the wiring harness through hole 3 is set in steps, and the inner diameter of the outer end of the wiring harness through hole 3 is smaller than the inner diameter of the inner end of the wiring harness through hole 3. The wiring harness is installed first to achieve positioning installation, thereby improving the fixing effect of the wiring harness.

[0027] As a further preferred embodiment, the box body 1 is provided with trapezoidal slots 71 at intervals, the fixing seat 2 is snapped into the trapezoidal slots 71, and the fixing seat 2 is pressed downward along the trapezoidal slots 71, and the trapezoidal slots 71 serve as a guide for installation.

[0028] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A new waterproof structure, characterized in that: include: The box body and the fixing seat, the left end portion of the box body is provided with a wiring harness half hole 1, the fixing seat is snap-fitted and matched to the left end portion of the box body, the interior of the fixing seat is provided with a wiring harness half hole 2 matching the wiring harness half hole 1, the wiring harness half hole 1 and the wiring harness half hole 2 constitute a wiring harness through-hole, the interior of the fixing seat is provided with an upper half glue pouring groove, the two ends of the upper half glue pouring groove are connected with an upward glue pouring channel 1, the glue pouring channel 1 extends to the outside of the fixing seat, the wiring harness half hole 1 is provided with a lower half glue pouring groove, the lower half glue pouring groove and the upper half glue pouring groove constitute an annular glue pouring groove, the two ends of the lower half glue pouring groove are connected with an upward glue pouring channel 2, the glue pouring channel 2 and the glue pouring channel 1 constitute a glue pouring channel.

2. A novel waterproof structure according to claim 1, characterized in that: The annular glue pouring grooves and glue pouring channels are arranged in two groups at intervals.

3. A novel waterproof structure according to claim 1, characterized in that: A groove 1 is provided in the middle of the inner side of the first glue pouring channel and is communicated with the upper glue pouring groove. A groove 2 is provided in the middle of the outer side of the second glue pouring channel and is communicated with the lower glue pouring groove.

4. A novel waterproof structure according to claim 1, characterized in that: The diameter of the wire harness through hole is arranged in a stepped manner, and the inner diameter of the outer end portion of the wire harness through hole is smaller than the inner diameter of the inner end portion of the wire harness through hole.

5. A novel waterproof structure according to claim 1, characterized in that: Trapezoidal slots are arranged at intervals on the box body, and the fixing seats are clamped in the trapezoidal slots.

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