Electric appliance box labyrinth type glue filling sealing structure

Abstract

The utility model relates to an electric appliance box labyrinth type glue filling sealing structure, including box seat, upper cover and a plurality of fastening bolts, upper cover detachably covers and set up in the top of box seat, and the box seat and upper cover are connected and are fixed through a plurality of fastening bolts between, the top of box seat outer wall forms a skirt, and the outer edge department of skirt forms annular section upward convexly, the top of box seat still forms the annular locating groove, the bottom of upper cover forms the boss downward convexly, and the boss is inserted into the locating groove with the locating groove positioning cooperation. Form the labyrinth type sealing groove between the box seat and upper cover adjacent end, greatly increased the path difficulty of the impurity such as dust, moisture of outside into the electric appliance box inside, and the glue layer filled in the labyrinth type sealing groove further blocked these paths, formed multiple sealing protection, effectively improved the sealing effect of electric appliance box, can better protect internal electrical components from the harm of outside environment, prolong the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of electrical box technology, specifically to a labyrinth-type potting and sealing structure for electrical boxes. Background Technology

[0002] An electrical box typically consists of a box body and a cover, which can be combined and connected together to house the electrical components installed inside.

[0003] Most common electrical boxes are assembled by simply fixing the box body and the top cover with bolts. This method of fixing can easily leave small gaps between the box body and the top cover, resulting in poor sealing and making it difficult to effectively prevent dust and moisture from entering. This can affect the normal operation of the components inside the box and shorten the lifespan of the equipment. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This utility model provides a labyrinth-type potting and sealing structure for an electrical box, which solves the problem that small gaps easily exist between the electrical box body and the electrical box cover, resulting in poor sealing effect and difficulty in effectively preventing the intrusion of dust and moisture.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a labyrinth-type potting and sealing structure for an electrical box, comprising a box base, a top cover, and several fastening bolts. The top cover is detachably fitted onto the top of the box base, and the box base and the top cover are connected and fixed by the several fastening bolts. A skirt is formed on the top of the outer wall of the box base, and an annular segment is formed at the outer edge of the skirt. An annular positioning groove is also formed on the top of the box base. A boss is formed on the bottom of the top cover, and the boss is inserted into the positioning groove in a positioning fit. The gap between the adjacent ends of the box base and the top cover forms a labyrinth-type sealing groove, and the labyrinth-type sealing groove is filled with a glue layer.

[0008] Preferably, there is a gap between the outer wall of the top cover and the inner wall of the annular segment, a gap between the inner wall of the top cover and the outer wall of the top cover, and a gap between the bottom of the top cover and the top of the box base. The gaps between the box base and the top cover together form a labyrinth-type sealing groove.

[0009] In a further preferred embodiment, a colloid is injected into the gap between the box base and the annular segment, and the colloid forms a colloid layer after being squeezed and solidified by the top cover and the box base.

[0010] In a further preferred embodiment, the boss has a plurality of countersunk holes penetrating the top cover, and the bottom of the positioning groove has a number of connecting holes equal to the number of countersunk holes. Each countersunk hole is coaxially aligned with a connecting hole, and each countersunk hole is provided with a fastening bolt for connecting the box seat and the top cover.

[0011] In a further preferred embodiment, the bottom of the box base has a base support formed on both opposite sides, and the base support has a plurality of through slots.

[0012] In a further preferred embodiment, first lugs are formed on both opposite sides of the annular segment, and second lugs are formed on both opposite sides of the upper cover, which are vertically aligned with the first lugs. A through slot is formed on each of the adjacent first and second lugs.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a labyrinth-type potting and sealing structure for electrical boxes, which has the following beneficial effects:

[0015] In this invention, by forming a labyrinthine sealing groove between the adjacent ends of the box base and the top cover, the difficulty of external dust, moisture and other impurities entering the electrical box is greatly increased. The colloid layer filled in the labyrinthine sealing groove further blocks these paths, forming multiple sealing protections. This effectively improves the sealing effect of the electrical box, better protects the internal electrical components from external environmental damage, and extends the service life of the equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the labyrinth-type potting and sealing structure of the electrical box according to the implementation plan;

[0017] Figure 2 for Figure 1 Top view of the labyrinth-type potting and sealing structure of the electrical box;

[0018] Figure 3 for Figure 2 Sectional view at point AA.

[0019] In the diagram: 10, box base; 11, skirt; 12, annular segment; 13, positioning groove; 14, base support; 15, first lug; 20, top cover; 21, boss; 22, second lug; 30, fastening bolt; 40, sealing groove; 50, colloid layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 3 An electrical box labyrinth-type potting and sealing structure includes a box base 10, a top cover 20, several fastening bolts 30, and a glue layer. The top cover 20 is detachably fitted onto the top of the box base 10, and the box base 10 and the top cover 20 are connected and assembled and fixed by several fastening bolts 30. A skirt 11 is formed on the top of the outer wall of the box base 10, and an annular segment 12 is formed on the outer edge of the skirt 11, with a certain gap between the annular segment 12 and the outer wall of the box base 10. An annular positioning groove 13 is also formed on the top of the box base 10, and a boss 21 is formed on the bottom of the top cover 20, which can be inserted into the positioning groove 13 for positioning and matching, so that the box base 10 and the top cover 20 can be positioned and placed during assembly. The gap between the adjacent ends of the box base 10 and the top cover 20 forms a labyrinth-type sealing groove 40, and the labyrinth-type sealing groove 40 is filled with a colloid layer 50 to improve the sealing effect at the connection between the box base 10 and the top cover 20.

[0022] In this embodiment, there is a gap between the outer wall of the top cover 20 and the inner wall of the annular segment 12, a gap between the inner wall of the top cover 20 and the outer wall of the top cover 20, and a gap between the bottom of the top cover 20 and the top of the box base 10. The gaps between the box base 10 and the top cover 20 together form a labyrinth-type sealing groove 40. The labyrinth-type sealing groove 40 has a closed loop with multiple turns and detours, which can increase the difficulty for external dust, moisture and other impurities to enter the interior of the electrical box. When assembling the box base 10 and the top cover 20, a certain amount of colloid can be injected into the gap between the box base 10 and the annular segment 12. Then, the top cover 20 is placed on the box base 10. Then, several fastening bolts 30 can be used to lock and fix the two together. At this time, the aforementioned colloid can enter the gap between the top cover 20 and the box base 10 through the compression, that is, the colloid fills the labyrinth-type sealing groove 40, and can form a colloid layer 50 after the colloid solidifies.

[0023] In this embodiment, the boss 21 has a plurality of countersunk holes penetrating the upper cover 20, and the inner bottom of the positioning groove 13 has a number of connecting holes equal to the number of countersunk holes. When connecting the upper cover 20 and the box base 10 using fastening bolts 30, fastening bolts 30 can be inserted through each countersunk hole. The tightened fastening bolts 30 can extend into the connecting holes that are coaxially aligned with the countersunk holes, thus connecting and fixing the box base 10 and the upper cover 20.

[0024] In this embodiment, base supports 14 are formed on opposite sides of the bottom of the box base 10, and several through slots are formed on the base supports 14. The slots on the base supports 14 can be used to install and fix the device in the required position with fasteners. First lugs 15 are formed on opposite sides of the annular segment 12, and second lugs 22 are formed on opposite sides of the top cover 20, which are vertically aligned with the first lugs 15. Through slots are formed on adjacent first lugs 15 and second lugs 22. The first lugs 15 and second lugs 22 can be used to assemble and connect with other facilities, and can also be used to pry the top cover 20 with tools when disassembling the box base 10 and the top cover 20.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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 a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A labyrinth-type potting and sealing structure for an electrical box, comprising a box base (10), a top cover (20), and a plurality of fastening bolts (30), wherein the top cover (20) is detachably fitted over the top of the box base (10), and the box base (10) and the top cover (20) are connected and fixed by a plurality of fastening bolts (30), characterized in that: The top of the outer wall of the box base (10) is formed with a skirt (11), and an annular segment (12) is formed at the outer edge of the skirt (11) protruding upward. The top of the box base (10) is also formed with an annular positioning groove (13). The bottom of the upper cover (20) is formed with a protrusion (21) that protrudes downwards, and the protrusion (21) is inserted into the positioning groove (13) in a positioning fit. The gap between the adjacent ends of the box base (10) and the top cover (20) forms a labyrinth-type sealing groove (40), and the labyrinth-type sealing groove (40) is filled with a colloid layer (50).

2. The labyrinth-type potting and sealing structure for an electrical box according to claim 1, characterized in that: There is a gap between the outer wall of the top cover (20) and the inner wall of the annular segment (12), a gap between the inner wall of the top cover (20) and the outer wall of the top cover (20), and a gap between the bottom of the top cover (20) and the top of the box seat (10). The gap between the box seat (10) and the top cover (20) together form a labyrinth-type sealing groove (40).

3. The labyrinth-type potting and sealing structure for an electrical box according to claim 1, characterized in that: The boss (21) has a number of countersunk holes that penetrate the top cover (20). The bottom of the positioning groove (13) has a number of connecting holes equal to the number of countersunk holes. Each countersunk hole is coaxially aligned with a connecting hole, and each countersunk hole is fitted with a fastening bolt (30) for connecting the box seat (10) and the top cover (20).

4. The labyrinth-type potting and sealing structure for an electrical box according to claim 2, characterized in that: The gap between the box base (10) and the annular segment (12) is filled with colloid, and the colloid is squeezed by the top cover (20) and the box base (10) and solidified to form a colloid layer (50).

5. The labyrinth-type potting and sealing structure for an electrical box according to claim 1, characterized in that: The bottom of the box base (10) has a base support (14) on both opposite sides, and the base support (14) has a number of slots that penetrate through itself.

6. The labyrinth-type potting and sealing structure for an electrical box according to claim 1, characterized in that: The annular segment (12) has a first lug (15) on each of its opposite sides, and the upper cover (20) has a second lug (22) on each of its opposite sides that is vertically aligned with the first lug (15). The first lug (15) and the second lug (22) each have a slot that penetrates through them.

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