Waterproof power supply box

Abstract

The utility model discloses a waterproof power supply box, which comprises a shell and a shell cover, a cavity for accommodating a circuit board is enclosed by the shell and the shell cover, two sides of the shell are provided with wiring holes, and a power line penetrates through the wiring holes and is connected with the circuit board; the upper end of the shell protrudes inwards to form an inner edge, an insertion groove with an upward opening is formed in the inner edge, the shell cover protrudes downwards to be provided with an insertion frame capable of being matched with the insertion groove in an inserted mode, a plurality of threaded holes are formed in the inner edge and the shell cover in a right opposite mode, and the inner edge and the shell cover are fixedly connected through screws. The waterproof power supply box has the advantages of being stable in structure, good in sealing effect and convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of waterproof power supply technology, and in particular to a waterproof power supply box. Background Technology

[0002] A power supply box, typically referring to a power junction box, is used for electrical wiring work, serving as a transition point for connecting external cables. The internal space of the power supply box can be used to install control components or power adapters, facilitating the securing of these components. The power supply box protects the internal components and power lines from damage caused by environmental changes and physical impacts. The power supply box consists of a housing and a cover, which are fixed together with screws. However, due to manufacturing errors, water leakage is highly likely at the connection point between the housing and the cover, posing a risk of short circuits. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this patent application is how to provide a waterproof power supply box that is structurally stable, has a good sealing effect, and is easy to use.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A waterproof power supply box includes a housing and a cover, the housing and the cover forming a cavity for accommodating a circuit board, and wiring holes are provided on both sides of the housing, through which a power cord passes and is connected to the circuit board.

[0006] The upper end of the housing protrudes inward to form an inner edge, and an upward-opening slot is provided on the inner edge. The cover protrudes downward and is provided with a frame that can be inserted and matched with the slot. Several threaded holes are provided opposite to the inner edge and the cover. The inner edge and the cover are fixedly connected by screws.

[0007] In this way, during assembly, the circuit board is placed inside the housing, the power cord passes through the wiring hole and connects to the circuit board, the cover is attached to the housing, the insert frame is inserted into the slot, and screws are used to lock the cover and housing together. The insert frame creates a waterproof area. Compared to the cover being directly attached to the housing, the combination of the slot and the insert frame provides further waterproofing, increases the contact area, reduces the amount of liquid entering the housing, and better meets usage requirements.

[0008] Meanwhile, this structure is equipped with insert frames and slots, which are simple in structure, low in cost, and easy to manufacture, thus better meeting the needs.

[0009] The outer side of the insertion frame is fitted with an inner rubber ring, and the outer side of the inner rubber ring abuts against the slot.

[0010] The shell cover has a downward protruding lower edge, and an inner inclined surface is provided on the inner side of the lower edge. The upper end of the shell has an outer inclined surface, and the inner inclined surface and the outer inclined surface are in contact.

[0011] An upper sealing ring is provided between the cover and the housing, and the two sides of the upper sealing ring abut against the inner and outer inclined surfaces.

[0012] The inner rubber ring and the upper sealing ring are integrally formed.

[0013] In summary, this waterproof power supply box has the advantages of stable structure, good sealing effect, and ease of use. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of a waterproof power supply box according to the present invention.

[0015] Figure 2 for Figure 1 The exploded diagram.

[0016] Figure 3 for Figure 1 A sectional view.

[0017] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0018] Figure 5 This is a schematic diagram of the shell cover.

[0019] Figure 6 This is a schematic diagram of the inner rubber ring and the outer sealing ring. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that directional terms such as "upper," "lower," "top," and "bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional terms 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 limiting the scope of protection of the present invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0021] like Figure 1-6 As shown, a waterproof power supply box includes a housing 1 and a cover 2. The housing and the cover form a cavity for accommodating a circuit board. Wiring holes 3 are provided on both sides of the housing, through which power cords pass and are connected to the circuit board.

[0022] The upper end of the housing protrudes inward to form an inner edge 4. An upward-opening slot 5 is provided on the inner edge. The cover protrudes downward and is provided with a insertion frame 6 that can be inserted and matched with the slot. Several threaded holes are provided on the inner edge and the cover opposite each other. The inner edge and the cover are fixedly connected by screws.

[0023] In this way, during assembly, the circuit board is placed inside the housing, the power cord passes through the wiring hole and connects to the circuit board, the cover is attached to the housing, the insert frame is inserted into the slot, and screws are used to lock the cover and housing together. The insert frame creates a waterproof area. Compared to the cover being directly attached to the housing, the combination of the slot and the insert frame provides further waterproofing, increases the contact area, reduces the amount of liquid entering the housing, and better meets usage requirements.

[0024] Meanwhile, this structure is equipped with insert frames and slots, which are simple in structure, low in cost, and easy to manufacture, thus better meeting the needs.

[0025] In practice, an inner rubber ring 10 is fitted onto the outer side of the insertion frame, and the outer side of the inner rubber ring abuts against the slot. The gap between the insertion frame and the slot is filled using the inner rubber ring to further improve the waterproof effect.

[0026] In implementation, the cover has a downwardly protruding lower edge 7, and an inner inclined surface 8 is provided on the inner side of the lower edge. The upper end of the housing has an outer inclined surface 9, and the inner and outer inclined surfaces are in contact. By providing the inner and outer inclined surfaces, and sloping downwards, the probability of liquid entering the housing from between the housing and the cover can be reduced during use, further improving the waterproof effect.

[0027] In practice, an upper sealing ring 11 is provided between the cover and the housing, and the two sides of the upper sealing ring abut against the inner and outer inclined surfaces. This seals the connection between the housing and the cover, further improving the waterproof effect.

[0028] In practice, the inner rubber ring and the upper sealing ring are integrally molded, which facilitates manufacturing.

[0029] Finally, it should be noted that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A waterproof power box, characterized by, The utility model relates to a shell for circuit board, including shell (1) and shell cover (2), the shell and shell cover surround the cavity for containing circuit board, the both sides of shell are equipped with wiring hole (3), and power cord passes through wiring hole and is connected with circuit board; The upper end of shell is inwards convex and forms inner edge (4), is equipped with the slot (5) of opening upward on the inner edge, the shell cover is provided with the plug frame (6) of being able to be inserted with the slot with downward convex, the inner edge and shell cover are opposite and are equipped with a plurality of thread holes, and the inner edge and shell cover are fixedly connected through screw; The shell cover is provided with lower edge (7) downward convex, the inner side of lower edge is provided with inner inclined surface (8), and the upper end of shell is provided with outer inclined surface (9), and the inner inclined surface is attached with outer inclined surface.

2. The waterproof power box according to claim 1, characterized in that, The outer side of plug frame is equipped with inner rubber ring (10), and the outer side of inner rubber ring is abutted with slot.

3. A waterproof power box according to claim 2, characterized in that The upper sealing ring (11) is arranged between the shell cover and the shell, and the two sides of the upper sealing ring are abutted with the inner inclined surface and the outer inclined surface.

4. The waterproof power box according to claim 3, characterized in that, The inner rubber ring (10) and the upper sealing ring (11) are integrally formed.

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