Circuit board embedding box for glue pouring

Abstract

The circuit board embedding box comprises a box body with an opening in the upper end, a plurality of terminals are embedded in the bottom wall of the box body, one end of each terminal vertically and upwards penetrates out of the inner bottom face of the box body, the other end of each terminal extends out of the box body, the terminals are metal plates, and the metal plates are arranged on the inner bottom face of the box body. The part embedded in the bottom wall of the box body is wider than the part exposed out of the box body, and the part, located in the bottom wall of the box body, of the terminal is tightly attached to the bottom wall of the box body. According to the utility model, the terminal is embedded in the bottom wall of the box body, the two ends of the terminal are respectively exposed out of the inner bottom surface of the box body and the box body, and the preset terminal of the terminal is used for connecting the circuit board and other external electrical elements or equipment, so that the connection of a lead on the circuit board can be avoided, and the sealing effect on the circuit board after grouting is improved.

Description

Technical Field

[0001] The utility model relates to a circuit board splicing box for glue pouring. Background Art

[0002] Circuit boards are common electrical components, often used in electrical equipment with control functions. Circuit boards usually integrate some chips and weld many other electrical components. Electrical components are connected to the circuit board through pin welding, so the solder pins are usually exposed. During the operation of the circuit board, due to the influence of environmental humidity, dust in the air and other factors, the exposed solder pins may become loose and short-circuited, causing abnormal operation of the equipment.

[0003] In order to overcome the above technical problems, currently, circuit boards with harsh working conditions are filled with glue, but the circuit boards with glue filling are usually connected to the outside through wires, which does not have much impact on low-voltage circuit boards because the connecting wires are relatively thin, but it is not very suitable for high-voltage circuit boards and high-current circuit boards. Due to the requirements of voltage and current, the wire diameter is larger, which will affect the glue filling effect. The hardness of the wire with a larger diameter is also higher, which also affects the assembly of the circuit board after glue filling. The heat dissipation effect of the wire is also poor. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a circuit board splicing box for glue pouring, so as to solve the technical problem that when a high-voltage circuit board is poured with glue, a thicker wire affects the glue pouring effect.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a circuit board splicing box for glue pouring, comprising a box body with an opening at the upper end, and a plurality of terminals embedded in the bottom wall of the box body, one end of each terminal vertically upwardly passes through the inner bottom surface of the box body, and the other end extends to the outside of the box body, the terminal is a metal plate, and the part embedded in the bottom wall of the box body is wider than the part exposed outside the box body, and the part of the terminal located in the bottom wall of the box body is tightly fitted with the bottom wall of the box body.

[0006] As a preferred solution, a base corresponding to each terminal outlet end is provided on the inner bottom surface of the box body, and the base surrounds and covers one end of each terminal outlet from the inner bottom surface of the box body, and each base has the same height and is lower than the height of the terminal outlet from the inner bottom surface of the box body.

[0007] As a preferred solution, a plurality of small holes are provided on the bottom wall of the box body, each small hole is directly opposite to a terminal, the small holes and the terminals are in a one-to-one correspondence, the small holes penetrate the bottom wall of the box body, and are blocked by the terminals.

[0008] As a preferred solution, the terminal and the box body are integrally formed by insert injection molding.

[0009] As a preferred solution, positioning bosses and hooks are respectively provided on the outer walls around the box body. The positioning bosses are located below the hooks. The hooks are used to form a snap connection with the buckles. The positioning bosses are used to locate the position of the box body to avoid movement of the box body after installation.

[0010] The beneficial effects of the utility model are as follows: the utility model embeds the terminal in the bottom wall of the box body, and exposes the two ends of the terminal on the bottom surface of the box body and the outside of the box body respectively, and uses the preset terminal to connect the circuit board and other external electrical components or equipment, thereby eliminating the need to connect wires on the circuit board, thereby improving the sealing effect of the circuit board after grouting. At the same time, the terminal embedded in the bottom wall of the box body has good contact with the bottom wall of the box body, so it can dissipate heat through the bottom wall of the box body, thereby improving the heat dissipation effect of the terminal and improving the working stability and safety of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the circuit board splicing box of the utility model;

[0013] Figure 2 It is a partial cross-sectional schematic diagram of the box body;

[0014] Figure 1 and Figure 2 Middle: 1. Box body, 2. Bottom wall, 3. Terminal, 4. Base, 5. Small hole, 6. Positioning boss, 7. Hook. DETAILED DESCRIPTION

[0015] The specific implementation scheme of the utility model is described in detail below in conjunction with the accompanying drawings.

[0016] like Figure 1 A circuit board splicing box for glue potting is shown, comprising a box body 1 with an opening at the upper end, a plurality of terminals 3 embedded in the bottom wall 2 of the box body 1, one end of each terminal 3 vertically upwardly passing through the inner bottom surface of the box body 1 for connecting the circuit board, and the other end extending to the outside of the box body 1, the terminal 3 is a metal plate, the portion of the terminal 3 embedded in the bottom wall 2 of the box body 1 is wider than the portion exposed outside the box body 1, and the portion of the terminal 3 located in the bottom wall 2 of the box body 1 is tightly fitted with the bottom wall 2 of the box body 1.

[0017] The terminals 3 embedded in the bottom wall 2 of the box body 1 can be connected to the circuit board, so that the circuit board can be electrically connected to the outside through the terminals 3. The terminals 3 have a large width and thickness, good conductivity, and can withstand high voltage and large current, so that thicker wires can be avoided on the circuit board.

[0018] In this embodiment, a base 4 corresponding to each terminal 3 protruding from the inner bottom surface of the box body 1 is preferably provided on the inner bottom surface of the box body 1, and the base 4 surrounds and covers one end of each terminal 3 protruding from the inner bottom surface of the box body 1. The height of each base 4 is consistent and the height is lower than the height of the terminal 3 protruding from the inner bottom surface of the box body 1.

[0019] The base 4 can not only improve the stability and position accuracy of the end of the terminal 3 , but also play a role in supporting the circuit board, so that the circuit board can be installed in the box body 1 more stably.

[0020] like Figure 1 and 2 As shown, in this embodiment, preferably, a plurality of small holes 5 are opened on the bottom wall 2 of the box body 1, each small hole 5 is directly opposite to a terminal 3, and the small holes 5 and the terminals 3 are in a one-to-one correspondence. The small holes 5 pass through the bottom wall 2 of the box body 1 and are blocked by the terminals 3.

[0021] The small hole 5 can improve the connection strength between the injected glue and the box body 1 after curing, and can also improve the heat dissipation effect of the terminal 3 .

[0022] The terminal 3 and the box body 1 are integrally formed by insert injection molding, which can improve the connection tightness and thermal conductivity of the terminal 3 and the bottom wall 2 of the box body 1, and ensure the heat dissipation effect of the terminal 3.

[0023] The outer walls of the box body 1 are respectively provided with positioning bosses 6 and hooks 7, the positioning bosses 6 are located below the hooks 7, the hooks 7 are used to form a snap connection with the buckle, and the positioning bosses 6 are used to locate the position of the box body 1 to prevent the box body 1 from moving after installation. After the box body 1 is filled with glue, the hooks 7 can be directly connected to other components by snap connection.

[0024] The working process of this utility model is: Figure 1 As shown, first, a pre-designed circuit board that is compatible with the circuit board embedding box is embedded in the box body 1. A socket that matches the end of each terminal 3 is opened on the circuit board. After the end of the terminal 3 is inserted into the socket of the circuit board, reliable conductivity is achieved through welding connection. The bottom surface of the circuit board abuts against the top of each base 4, and then glue is poured. The sealant is introduced from the upper end opening of the box body 1 to the circuit board in the box body 1. A via hole is opened on the circuit board. The sealant on the circuit board enters the space below the circuit board through the via hole and finally fills it. The circuit board is also filled with sealant. After the sealant completely covers the circuit board, wait for the sealant to cure. After the sealant cures, the glue pouring is completed to form a finished product.

[0025] The above embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A circuit board splicing box for glue potting, comprising a box body (1) with an upper opening, characterized in that: A plurality of terminals (3) are embedded in the bottom wall (2) of the box body (1), one end of each terminal (3) vertically passes through the bottom surface of the box body (1) and the other end extends outside the box body (1). The terminal (3) is a metal plate, the portion embedded in the bottom wall (2) of the box body (1) is wider than the portion exposed outside the box body (1), and the portion of the terminal (3) located in the bottom wall (2) of the box body (1) is tightly fitted with the bottom wall (2) of the box body (1).

2. The circuit board splicing box for glue potting according to claim 1, characterized in that: The inner bottom surface of the box body (1) is provided with bases (4) corresponding to the ends of the terminals (3) passing through, the bases (4) surround and cover one end of each terminal (3) passing through the inner bottom surface of the box body (1), and the heights of the bases (4) are consistent and lower than the height of the terminals (3) passing through the inner bottom surface of the box body (1).

3. The circuit board splicing box for glue potting according to claim 1, characterized in that: The bottom wall (2) of the box body (1) is provided with a plurality of small holes (5), each small hole (5) is directly opposite to a terminal (3), and there is a one-to-one correspondence between the small holes (5) and the terminals (3). The small holes (5) penetrate the bottom wall (2) of the box body (1) and are blocked by the terminals (3).

4. The circuit board splicing box for glue potting according to claim 1, characterized in that: The terminal (3) and the box body (1) are integrally formed by insert injection molding.

5. The circuit board splicing box for glue potting according to claim 1, characterized in that: Positioning bosses (6) and hooks (7) are respectively arranged on the outer walls around the box body (1); the positioning bosses (6) are located below the hooks (7); the hooks (7) are used to form a snap connection with the buckle; the positioning bosses (6) are used to position the box body (1) to prevent the box body (1) from moving after installation.

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