CN218415216U - External connection structure of leakage protection device - Google Patents
External connection structure of leakage protection device Download PDFInfo
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- CN218415216U CN218415216U CN202222450135.0U CN202222450135U CN218415216U CN 218415216 U CN218415216 U CN 218415216U CN 202222450135 U CN202222450135 U CN 202222450135U CN 218415216 U CN218415216 U CN 218415216U
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- circuit board
- connection terminal
- cover plate
- electrical connection
- plate body
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Abstract
The utility model provides an earth leakage protection device's external electric structure, cover plate body and circuit board that the interval set up about including, parallel and fixed connection of cover plate body and circuit board are equipped with the electrical connection terminal between cover plate body and the circuit board, the lower extreme and the circuit board welding of electrical connection terminal, the upper end and the cover plate body fixed connection of electrical connection terminal. Its electrical connection terminal is fixed by the centre gripping between circuit board and the apron body, and electrical connection terminal's lower extreme and circuit board welded fastening are connected, and electrical connection terminal's upper end and apron body location fixed connection, so, fix the electrical connection terminal at electrical connection terminal's both ends for electrical connection terminal is fixed stable firm, and in addition, because the apron body is fixed to electrical connection terminal's location, electrical connection terminal and circuit board's welding need not to use too much soldering tin to carry out special reinforcement.
Description
Technical Field
The utility model relates to an earth leakage protection device's external connection electric structure.
Background
The electric shock protector is a device for reducing or preventing the damage of electric shock to human body, also called leakage protection device, and is a common leakage protection device in low-voltage electric equipment.
The external power grid circuit is connected into the leakage protection device, and then the circuit is output from the leakage protection device. The shell of the leakage protection device is internally provided with a circuit board, the circuit is connected and output through the circuit board, the circuit board is provided with an electric connection terminal connected with a live wire and a zero line, and the electric connection terminal is connected on the circuit board through a contact pin and is welded and fixed.
Above-mentioned fixed knot who connects electrical terminal constructs, rely on the welded fastening of contact pin and circuit board completely, it is firm in order to guarantee to connect the stability that electrical terminal connects, need use more soldering tin to weld as far as, soldering tin uses too much, one is that welding operation is more troublesome, another is that too much high temperature soldering tin also can cause the damage to the circuit board, connect electrical terminal one end in addition and fix, this kind of structural stability also lacks to some extent.
SUMMERY OF THE UTILITY MODEL
To the problem pointed out in the background art, the utility model provides an earth leakage protection device's external electric structure, it is fixed the fixed terminal in two relative directions, and the installation that makes the electrical connection terminal is stable firm to the use of reducible soldering tin.
The technical scheme of the utility model is realized like this:
an external connection structure of an electric leakage protection device comprises a cover plate body and a circuit board which are arranged at an upper interval and a lower interval, wherein the cover plate body is parallel to and fixedly connected with the circuit board, an electric connection terminal is arranged between the cover plate body and the circuit board, the lower end of the electric connection terminal is welded with the circuit board, and the upper end of the electric connection terminal is fixedly connected with the cover plate body.
The utility model discloses further set up to, the upper end of power connection terminal be equipped with convex location portion, the apron body on be equipped with the constant head tank that corresponds with location portion, location portion connect the constant head tank in.
The utility model discloses further set up to, the apron body on be equipped with to the convex registration arm of circuit board place side, form the constant head tank in the registration arm, the registration arm offsets the cooperation with the last side of connecting the electrical terminal, location portion connects in the constant head tank of registration arm.
Through adopting above-mentioned technical scheme, at first circuit board and apron body fixed connection, and the interval sets up between the two, connect the electrical terminal by the restriction between the circuit board and the apron body, compare current connect the electrical terminal only with circuit board welded fastening, connect the electrical terminal's one end and circuit board welded fastening in this application, the other end and apron body coupling, and carry out the centre gripping fixedly with the apron body through the circuit board to connect the electrical terminal, centre gripping fixed knot constructs and just can guarantee basically to connect the fixed fastness of electrical terminal, the welding only plays the effect of supplementary fixed and reinforcing electric connectivity, so can use a small amount of soldering tin to weld.
The utility model discloses further set up to, the electrical connection terminal include the shell of plastics system, be equipped with the mounting groove that runs through its downside in the shell, be equipped with fixed metal in the mounting groove and connect electrical component and activity metal, activity metal connects electrical component and sets up the upside at fixed metal and connects electrical component, fixed metal connects electrical component and shell body fixed connection, fixed metal connects electrical component through connecing electrical contact pin and circuit board welding, activity metal connects electrical component can reciprocate in the mounting groove, is equipped with the screw hole in the location portion, the screw hole sets up with the constant head tank intercommunication, threaded hole is connected with fastening screw, fastening screw can drive activity metal and connect electrical component downstream, the apron body on be equipped with the trompil with the registration arm intercommunication, the front side of shell be equipped with the interface of pegging graft with the mounting groove intercommunication.
The utility model discloses further set up to, location portion be cylindrical, the diameter of location portion equals the internal diameter of registration arm.
By adopting the technical scheme, the beneficial effects of the utility model are that:
the utility model provides an earth leakage protection device's external electricity structure, it connects the electrical terminal to be fixed by the centre gripping between the circuit board and the apron body, the lower extreme and the circuit board welding fixed connection of connecting the electrical terminal, the upper end and the apron body location fixed connection of connecting the electrical terminal, so, the both ends at the electrical terminal are fixed to the electricity terminal, make the electrical terminal fixed stable firm, moreover, because the apron body is fixed to the location of connecting the electrical terminal, the welding of electrical terminal and circuit board need not to use too much soldering tin to consolidate very much.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of the present invention;
figure 2 is the cross-sectional view that the utility model discloses electrical connection terminal connects.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The present invention is described below with reference to fig. 1-2:
the first embodiment is as follows: the utility model provides an earth leakage protection device's external electric structure, includes apron body 1 and circuit board 2 that the interval set up from top to bottom, and apron body 1 is parallel and fixed connection with circuit board 2, is equipped with between apron body 1 and the circuit board 2 and connects electrical terminal 3, connects electrical terminal 3's lower extreme and circuit board 2 welding.
The earth leakage protection device further comprises a box body, wherein the box body is provided with an upward opening, the cover plate body 1 covers the opening at the upper side of the box body, and the circuit board 2 is arranged in a closed space formed by the cover plate body 1 and the box body.
The upper end of the electric terminal 3 is fixedly connected with the cover plate body 1, the fixed connection can adopt various structures which can be realized, and the application provides the following implementation mode:
the upper end of the power connection terminal 3 is provided with a convex positioning part 4, the cover plate body 1 is provided with a positioning groove 5 corresponding to the positioning part 4, and the positioning part 4 is connected in the positioning groove 5. The movement of the electrical terminals 3 is limited by the cooperation of the positioning portion 4 with the positioning slot 5.
Be equipped with on the cover plate body 1 to the convex registration arm 6 of 2 places sides of circuit board, form constant head tank 5 in the registration arm 6, registration arm 6 offsets the cooperation with the side of going up of electrical connection terminal 3, and location portion 4 is connected in registration arm 6's constant head tank 5, and location portion 4 is cylindrical, and the diameter of location portion 4 equals the internal diameter of registration arm 6. In the above configuration, the movement of the electric terminals 3 in the vertical direction is restricted by the lower ends of the electric terminals 3 abutting against the circuit board 2 and the upper ends of the electric terminals 3 abutting against the positioning pipes 6 of the cover 1.
Through the two positioning limits, the electric terminals 3 are clamped and fixed between the cover plate body 1 and the circuit board 2.
An implementation of the electrical terminals 3 is provided as follows:
the electric terminal 3 includes a plastic housing 31, a mounting groove 32 penetrating the lower side of the housing 31 is provided in the housing 31, and a fixed metal electric connecting member 33 and a movable metal electric connecting member 34 are provided in the mounting groove 32. The fixed metal electric connecting piece 33 is fixedly connected with the shell 31, and the fixed metal electric connecting piece 33 is welded with the circuit board 2 through an electric contact pin 35. The movable metal electric connecting piece 34 is arranged on the upper side of the fixed metal electric connecting piece 33, and the movable metal electric connecting piece 34 can move up and down in the mounting groove 32. The positioning part 4 is provided with a threaded hole 36, the threaded hole 36 is communicated with the positioning groove 5, a fastening screw 37 is connected in the threaded hole 36, and the fastening screw 37 can drive the movable metal electric connecting part 34 to move downwards. The cover plate body 1 is provided with an opening 38 communicated with the positioning pipe 6, the front side of the shell 31 is provided with a plug-in port 39 communicated with the mounting groove 32, and the width of the plug-in port 39 is smaller than that of the mounting groove 32.
The power connection mode of the power connection terminal 3 is as follows: the electric wire is inserted between the fixed metal electric connecting piece 33 and the movable metal electric connecting piece 34 in the mounting groove 32 from the plug port 39, and a screwdriver is inserted into the positioning tube 6 from the opening 38 to operate the fastening screw 37, so that the fastening screw 37 rotates downwards, the fixed metal electric connecting piece 33 and the movable metal electric connecting piece 34 are clamped, and the inserted electric wire is fixed.
When the cover body 1 is in the lower position, the movable metal electric connecting part 34 moves towards the side of the cover body 1 under the action of the self gravity, so that the electric wire can be conveniently inserted between the fixed metal electric connecting part 33 and the movable metal electric connecting part 34.
The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides an earth leakage protection device's external electric structure, includes the cover plate body and the circuit board that the interval set up from top to bottom, and the cover plate body is parallel and fixed connection with the circuit board, is equipped with the electrical connection terminal between cover plate body and the circuit board, and the lower extreme and the circuit board welding of electrical connection terminal, its characterized in that: the upper end of the electric connection terminal is fixedly connected with the cover plate body.
2. An external electrical structure of a leakage protection device according to claim 1, wherein: the upper end of the power connection terminal is provided with a convex positioning part, the cover plate body is provided with a positioning groove corresponding to the positioning part, and the positioning part is connected in the positioning groove.
3. An external electrical structure of a leakage protection device according to claim 1, wherein: the cover plate body on be equipped with to the convex registration arm of circuit board place side, form the constant head tank in the registration arm, the registration arm supports the cooperation with the side of going up of electrical connection terminal, location portion connects in the constant head tank of registration arm.
4. An external connection structure of a leakage protection device according to claim 3, wherein: the electrical connection terminal include the shell of plastics system, be equipped with the mounting groove that runs through its downside in the shell, be equipped with fixed metal in the mounting groove and connect electrical component and activity metal, activity metal connects electrical component and sets up the upside at fixed metal and connects electrical component, fixed metal connects electrical component and shell body fixed connection, fixed metal connects electrical component and welds with the circuit board through connecing electrical contact pin, activity metal connects electrical component can reciprocate in the mounting groove, is equipped with the screw hole in the location portion, screw hole and constant head tank intercommunication set up, threaded hole in-connection has fastening screw, fastening screw can drive activity metal and connect electrical component downstream, the apron body on be equipped with the trompil with the registration arm intercommunication, the front side of shell be equipped with the interface of pegging graft with the mounting groove intercommunication.
5. An external electrical structure of a leakage protection device according to claim 4, wherein: the positioning part is cylindrical, and the diameter of the positioning part is equal to the inner diameter of the positioning pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222450135.0U CN218415216U (en) | 2022-09-16 | 2022-09-16 | External connection structure of leakage protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222450135.0U CN218415216U (en) | 2022-09-16 | 2022-09-16 | External connection structure of leakage protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218415216U true CN218415216U (en) | 2023-01-31 |
Family
ID=85032756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222450135.0U Active CN218415216U (en) | 2022-09-16 | 2022-09-16 | External connection structure of leakage protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218415216U (en) |
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2022
- 2022-09-16 CN CN202222450135.0U patent/CN218415216U/en active Active
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