Formwork structure and electronic function module
Technical Field
The utility model relates to a functional module encapsulates technical field, especially relates to a mould shell structure and electronic function module for electronic function module.
Background
The electronic function module, such as filter, transformer, inductor, etc., its main structure includes the mould hull and one or more magnetic rings installed in the mould hull, each magnetic ring is connected with several connecting wires, when producing, each wire is connected with the terminal on the mould hull. When the terminals are connected, the connecting wires on the magnetic ring need to be pulled into the wiring grooves on the formwork, and then the wiring ends of the connecting wires are welded with the terminals. However, for the existing formwork structure, the width of the wiring groove on the formwork is far larger than the diameter of the connecting lead, for example, chinese patent CN108430169A discloses a method for welding a magnetic coil, according to the specification and the attached drawings 1 and 4, for this formwork structure, in the process of welding the connecting lead, the movement of the connecting lead in the wiring groove cannot be guaranteed, the connecting lead needs to be fixed by other means, otherwise, the welding quality cannot be guaranteed. Therefore, there is a need for an improved form work structure of the electronic functional module.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the present invention is to provide a mold shell structure capable of stabilizing the connecting wires at the welding position during the assembling process.
Another object of the present invention is to provide an electronic functional module capable of stabilizing a connecting wire at a welding position during an assembling process, so as to improve assembling quality.
In order to achieve the above object, the present invention discloses a mold shell structure for an electronic functional module, the shuttering structure comprises an insulating base, the insulating base is provided with a holding cavity for holding the electronic function module and a side wall forming the holding cavity, a plurality of terminal grooves for the terminal to pass through are arranged on the side wall of the accommodating cavity at intervals, the terminal grooves comprise wiring grooves at the upper end and pin grooves at the lower end, the wiring groove is provided with a lead passage communicated with the accommodating cavity, the lead passage comprises a pair of channels which are arranged on two sides of the wiring groove opposite to the accommodating cavity and are used for connecting leads to pass through, and at least one of the pair of channels is a card slot having a width less than a diameter of the connecting wire such that the card slot can retain the connecting wire therein.
Preferably, the slot comprises a guide opening at the top end opening of the slot and a slot groove below the guide opening, and the diameter of the guide opening is larger than that of the slot groove.
Preferably, the guiding opening includes two inclined planes disposed on two side walls of the opening of the channel and extending oppositely to the central axis of the channel.
Preferably, the insulation cover is covered above the accommodating cavity and is clamped with the insulation base.
Preferably, the width of the clamping groove is 0.05-0.25 mm.
The utility model discloses still disclose an electronic function module, it includes as above the mould shell structure, the holding intracavity is provided with electronic function module, the terminal inslot is provided with binding post, binding post is including being located wiring inslot's wiring end with be located pin inslot's pin end.
Preferably, the terminal is a U-shaped groove which is opened upwards.
Preferably, the wiring terminal is an L-shaped wiring platform.
Preferably, the terminal is a square or circular terminal platform.
Preferably, the electronic function module comprises a plurality of magnetic coils, and each magnetic coil comprises a magnetic ring and a connecting wire wound on the magnetic ring.
Compared with the prior art, the utility model discloses mould shell structure on the electronic function module includes an insulation base, the wiring groove on the insulation base is provided with the wire passageway, and constitute at least one in the channel of wire passageway for the draw-in groove, at the in-process of assembling the electronic function module, when putting into the wiring groove through the wire passageway with connecting wire flare-out, the draw-in groove is held connecting wire card wherein, thereby make connecting wire fix in the wiring groove with taut state, connecting wire can not remove during the welding, and need not set up fixing tool for connecting wire specially, thereby make the assembly of electronic function module more convenient, and can effectively improve the assembly quality.
Drawings
Fig. 1 is a schematic perspective view of an electronic functional module according to an embodiment of the present invention.
Fig. 2 is a longitudinal sectional view of an electronic functional module according to an embodiment of the present invention.
Fig. 3 is a schematic perspective view of an embodiment of the present invention, on which a terminal is mounted.
Fig. 4 is a longitudinal sectional view of an insulation base according to an embodiment of the present invention, on which no connection terminal is mounted.
Fig. 5 is a side view of an insulation base according to an embodiment of the present invention.
Fig. 6 is a schematic perspective view of a connection terminal according to an embodiment of the present invention.
Fig. 7 is a schematic perspective view of a terminal in another embodiment of the present invention.
Fig. 8 is a schematic perspective view of a terminal in another embodiment of the present invention.
Fig. 9 is a schematic perspective view of a connection terminal according to another embodiment of the present invention.
Fig. 10 is a schematic perspective view of a terminal in another embodiment of the present invention.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.
As shown in fig. 1 to 5, the utility model discloses an electronic function module, which comprises a mould shell structure, an electronic function module arranged in the mould shell structure and a wiring terminal 4. Specifically, the electronic function module in this embodiment includes a plurality of magnetic coils, and each magnetic coil includes a magnetic ring 30 and a connecting wire 31 wound around the magnetic ring 30. The formwork structure comprises an insulating base 10, wherein an accommodating cavity 11 for accommodating an electronic function module and a side wall 12 forming the accommodating cavity 11 are arranged on the insulating base 10, a plurality of terminal grooves 13 for allowing wiring terminals 4 to pass through are arranged on the side wall 12 of the accommodating cavity 11 at intervals, each terminal groove 13 comprises a wiring groove 130 positioned at the upper end and a pin groove 131 positioned at the lower end, a wire channel L communicated with the accommodating cavity 11 is arranged on each wiring groove 130, each wire channel L comprises a pair of channel 14 which is arranged on the wiring groove 130 and opposite to the accommodating cavity 11 and is used for allowing a connecting wire 31 to pass through, at least one of the pair of channel 14 is a clamping groove, and the width D of the clamping groove is smaller than the diameter of the connecting wire 31, so that the clamping groove can clamp the connecting wire 31 therein. The terminal block 4 includes a terminal 40 positioned in the terminal groove 130 and a pin end 41 positioned in the pin groove 131.
In addition, in the above embodiment, two opposite sides of the receiving cavity 11 respectively have a side wall 12, the two side walls 12 are provided with terminal slots 13, the magnetic ring 30 is provided with connecting wires 31 respectively stretching to two sides, when assembling the electronic function module with the above structure, the connecting wires 31 at two sides of the magnetic ring are firstly tightened, the connecting wires 31 on both sides are then respectively placed into the wire connection slots 130 through the wire passage L, since at least one of the grooves 14 constituting the conductor passage L is a card slot, after the connecting conductor 31 enters the wire connecting slot 130, the clamping groove holds the free end of the connecting-wire 31 therein, and holds the connecting-wire 31 in this position in a tensioned state, so that, when the connecting lead 31 is welded on the terminal 40 of the terminal 4, the movement of the connecting lead 31 can be effectively avoided, and the assembly efficiency and the assembly quality of the electronic function module can be improved. Preferably, the two channels 14 forming the wire passage L in the present embodiment are slots, and the width D of the slot is preferably 0.05-0.25 mm.
To facilitate the snapping of the connecting wire 31 into the wire passage L, the channel 14 comprises a guide opening 140 at its top end opening and a wire groove 141 below the guide opening 140, the diameter of the guide opening 140 being larger than the diameter of the wire groove 141. In this embodiment, the connecting wire 31 can be conveniently and accurately inserted into the wire slot 141 by the arrangement of the guide opening 140. Specifically, the guiding opening 140 includes two oppositely extending slopes disposed on two side walls of the opening of the slot 14 relative to the central axis of the slot 14.
In a further improvement, as shown in fig. 1, the formwork structure further includes an insulating cover 15 covering the accommodating cavity 11, and the insulating cover 15 is clamped with the insulating base 10.
In addition, as for the specific structure of the terminal 40 on the terminal block 4, the present embodiment specifically discloses the following five modes.
The first method is as follows: as shown in fig. 6, the terminal 40 is a U-shaped groove opened upward.
The second method comprises the following steps: as shown in fig. 7, the terminal 40 is an L-shaped terminal platform.
The third method comprises the following steps: the terminal 40 is a square platform that can be located on one side of the lead end 41 (see fig. 8) or can be located opposite the lead end 41 (see fig. 9).
The method is as follows: the terminal 40 is a circular wiring platform.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.