CN110783061A

CN110783061A - Embedded assembled network transformer shell, network transformer and assembling method

Info

Publication number: CN110783061A
Application number: CN201911206433.1A
Authority: CN
Inventors: 邓芳; 何婵娟; 汪洪伟; 王强
Original assignee: Sichuan Jingweida Science And Technology Group Co Ltd
Current assignee: Sichuan Jingweida Science And Technology Group Co Ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-02-11

Abstract

The invention relates to the field of electric signal transmission, and discloses an embedded assembled network filter shell, which comprises a cover, wherein the cover is provided with an opening structure with an opening on one surface, the cover is provided with a PIN needle, and the head end of the PIN needle is fixedly connected with the cover; the base can cover the opening structure and is spliced to form a cavity for placing the inductance coil, and a wire clamping groove for clamping the PIN needle and a lead wire of the inductance coil is formed in the base; the lid with during the base concatenation, the PIN needle runs through card wire casing, just the PIN needle with base accessible PIN needle and lead wire soldering tin are connected and fixed connection. The sealing device has the technical effect that the head end of the PIN needle is fixedly connected with the upper cover, and after the PIN needle penetrates through the wire clamping groove, the sealing of the PIN needle can be met only by connecting the tail end of the PIN needle with the outer wall of the base in a soldering manner. The same PIN needle only needs to be dipped with tin once, so that the process time is greatly shortened, and the production efficiency is improved.

Description

Embedded assembled network transformer shell, network transformer and assembling method

Technical Field

The invention relates to the technical field of electric signal transmission, in particular to an embedded assembled network transformer shell, a network transformer and an assembling method.

Background

The network transformer shell is one of important electrical components in the field of electrical signal connection of the network transformer, and mainly comprises a cover body made of plastic materials and a plurality of PIN PINs arranged on the cover body. Traditional network filter casing of upper and lower lid structure, generally, constitute by a base and an independent upper cover of taking PIN needle and cavity, install a plurality of solenoid in the base cavity, solenoid communication lead twines on the PIN needle of base boss face and soldering tin is connected, through filling in proper amount adhesive in the upper cover cavity after with the base cooperation equipment, after put or toast through standing for a long time and wait that the adhesive solidification bonds firm back, form network filter overall structure and just can continue network filter back end production processes, it is long to have on solenoid lead and the PIN needle in the base cavity, the problem of upper and lower lid encapsulation back adhesive solidification latency is long.

Disclosure of Invention

The invention aims to provide an embedded assembled network transformer shell, a network transformer and an assembling method, which solve the problems that a PIN needle in a traditional network filter shell with an upper cover and a lower cover is divided into an outer PIN needle and an inner PIN needle, and the shell needs to be connected with a lead of a coil in a soldering manner inside and outside the shell, so that time and labor are wasted.

The embodiment of the invention is realized by the following steps:

an embedded assembled network filter shell comprises

The cover is provided with an opening structure with an opening on one surface, the cover is provided with a PIN needle, and the head end of the PIN needle is fixedly connected with the cover;

the base can cover the opening structure and is spliced to form a cavity for placing the inductance coil, and a wire clamping groove for clamping the PIN needle and a lead wire of the inductance coil is formed in the base;

the lid with during the base concatenation, the PIN needle runs through card wire casing, just the PIN needle with base accessible PIN needle and lead wire soldering tin are connected and fixed connection.

In a further scheme, be provided with one side opening and can place inductance coils's holding chamber on the base, the card wire casing set up in the face of base, just the card wire casing is located the side in holding chamber

In a further aspect, the cover is provided with a positioning block for limiting the base to the opening structure feeding stroke to prevent the base from touching the inductance coil.

In a further scheme, a PIN needle and a lead groove for leading a lead to pass through are arranged on the positioning block, the lead groove penetrates through the end face, provided with the PIN, of the positioning block and the side wall for forming the cavity, and the groove bottom of the lead groove is obliquely arranged relative to the inner wall of the top plate of the cover; and when the cover is spliced with the base, the lead slot is communicated with the wire clamping slot.

In a further scheme, the base is provided with an accommodating cavity with an opening at one side, the accommodating cavity is used for placing an inductance coil in advance before the base is spliced with the cover, the wire clamping groove is formed in the plate surface of the base, and the wire clamping groove is located at the side of the accommodating cavity.

In a further scheme, the distance between the edge of the PIN needle and the inner wall of the wire clamping groove is smaller than the diameter of a lead of the inductance coil, and the PIN needle and the inner wall of the wire clamping groove can tightly press and fix the end part of the lead of the inductance coil.

In a further aspect, the base can be embedded in the cavity of the cover, and the cover is in an interference fit with the base.

In a further scheme, the base is provided with a vent hole.

The invention also provides an embedded assembled network filter, which comprises the cover and the base in any scheme, wherein the base covers the opening of the cover opening structure and is spliced to form a cavity, an inductance coil is placed in the cavity, and the PIN needle and a lead of the inductance coil are tightly pressed and fixed in the wire clamping groove.

The invention also provides an assembling method of the embedded assembled network filter shell, which comprises the following steps:

placing an inductance coil in an accommodating cavity formed by the baffle and the base;

a lead wire of the tensile inductance coil passes through the lead wire port and extends into the wire clamping groove;

covering the cover into the base, and covering the base at the opening of the cover opening structure, so that the PIN needle penetrates through the wire clamping groove and the PIN needle and the lead wire are clamped in the wire clamping groove;

observing whether the base embedding position reaches a limit position through an observation groove;

the PIN needle is kept fixedly connected with the base through the tail end of the PIN needle and the lead wire tin immersion;

applying proper amount of adhesive through the vent holes and baking for curing.

The invention has the beneficial effects that:

through the head end and the lid fixed connection of PIN needle, and the card wire casing sets up on the base, runs through the card wire casing when the PIN needle after, only needs the tail end of PIN needle and the outer wall soldering tin of base to be connected, just can satisfy the sealed of PIN needle. The same PIN needle only needs to be dipped with tin once, so that the process time is greatly shortened, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a cover embedded in a housing of an assembled network filter according to embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a base embedded in a housing of an assembled network filter according to embodiment 1 of the present invention;

fig. 3 is a side cross-sectional view of an embedded assembled network filter housing according to embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram of an embedded assembled network filter according to embodiment 2 of the present invention in a disassembled state;

fig. 5 is a schematic structural diagram of an embedded assembled network filter according to embodiment 2 of the present invention in an assembled state;

fig. 6 is a sectional view of an embedded assembled network filter according to embodiment 2 of the present invention in an assembled state.

Icon: 1-cover, 11-PIN needle, 12-positioning block, 13-lead groove, 14-observation groove, 2-base, 21-vent hole, 22-baffle, 221-lead hole, 23-wire clamping groove, 3-inductance coil and 31-lead.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Example 1

Referring to fig. 1-3, the present embodiment provides an embedded assembled network filter housing, which includes a cover 1 and a base 2. Wherein the cover 1 is provided with an opening structure with one side opened, and the PIN needle 11 is arranged on the cover. The base 2 can cover the opening of the opening structure and be spliced to form a cavity for placing the inductance coil 3, and the base 2 is provided with a wire clamping groove 23 for keeping the PIN 11 connected with the lead wire 31 of the inductance coil 3. When lid 1 with when base 2 splices, PIN needle 11 runs through card wire casing 23, and PIN needle 11 and base 2 accessible PIN needle 11's tail end and lead wire soldering tin and fixed connection. Traditional network filter casing is an independent 2 cavitys of taking PIN needle 11 base and an independent lid 1 usually, and a plurality of solenoid chain links of installation are around on the PIN needle 11 of boss face in 2 cavitys of base, and PIN needle 11 divides into outer PIN needle 11 and interior PIN needle 11, all carries out soldering tin with the lead wire 31 of solenoid in the inside of casing and outside and is connected, wastes time and energy. And the head end and the 1 fixed connection of lid of PIN needle 11 in this scheme, and card wire casing 23 sets up on base 2, after PIN needle 11 runs through card wire casing 23, only need use the instrument of treating to cut away the unnecessary lead wire 31 of inductance coils 3 and remain certain length after, the tail end of PIN needle 11 is connected with base 2's outer wall soldering tin, just can satisfy PIN needle 11 sealed. Compare inside and outside being connected with PIN soldering tin in traditional, be connected by original interior PIN, outer PIN soldering tin in this scheme and turn into inside and outside being connected with PIN soldering tin, same PIN needle 11 only need the wicking once promptly, shortens process time greatly, has improved production efficiency, and the welding point that welding process formed can fix spacing base 2.

As a specific splicing mode, the base 2 can be embedded into the cavity of the cover 1 in the scheme, and the cover 1 is in interference fit with the base 2. Make lid 1 and base 2 fixed connection through interference fit's joint mode in this scheme. The traditional connection mode of the point pouring sealant is converted into the mode without the point pouring sealant, and the packaging process time is shortened. And because no pouring sealant is needed, the hidden danger of the hard force of the pouring sealant after drying on the product quality is avoided, and the lead corrosion caused by the chemical reaction between the lead of the coil and the adhesive is avoided. Of course, other connection methods in the prior art, such as a snap connection, can be adopted while ensuring that the cover 1 and the base 2 can be spliced.

In a further aspect, the cover 1 is provided with a positioning block 12 for limiting the feeding stroke of the base 2 in the opening structure to prevent the base from touching the inductance coil. As a specific embodiment, the positioning block 12 is disposed in the cavity. However, it is easy to understand that, in the case of ensuring the limit of the base 2, the setting position of the positioning block 12 is not limited, and the positioning block 12 may be provided on the outer wall of the cover 1.

Meanwhile, the locating block 12 is provided with a PIN 11 and a lead groove 13 for passing a lead, the lead groove 13 penetrates through the end face of the locating block 12 provided with the PIN 11 and the side wall for forming a cavity, and the bottom of the lead groove 13 is obliquely arranged relative to the inner wall of the top plate of the cover 1. And when the cover 1 is spliced with the base 2, the lead wire groove 13 is communicated with the wire clamping groove 23. Through lead wire groove 13 winding displacement, lead wire 31 of inductance coil 3 passes through lead wire groove 13 and stretches to card wire casing 23 inslot, and when the lower terminal surface of having avoided locating piece 12 can laminate with the face of base 2, the lower terminal surface of locating piece 12 can lead to lead wire 31 to damage with the face extrusion lead wire 31 of base 2. Although the PIN 11 is provided on the positioning block 12 in this embodiment, it is easily understood that the PIN 11 may be provided on the inner wall of the top plate of the cap 1.

In addition, in this scheme, base 2 is provided with the holding chamber of one side open-ended. The accommodating cavity is used for placing the inductance coil 3 in advance before the base 2 and the cover 1 are spliced. After the inductance coil 3 is placed in the accommodating cavity, the lead of the inductance coil 3 is stretched to the wire clamping groove 23, the cover 1 is covered, and the PIN needle 11 and the lead are clamped in the wire clamping groove 23. As a specific embodiment, a baffle 22 is disposed on the base 2, and the baffle 22 and the base 2 cooperate to form an accommodating cavity. And the wire clamping grooves 23 are all provided with the sides of the accommodating cavities. Placing inductance coils 3 in the holding cavity before splicing, limiting inductance coils 3 through baffle 22, and keeping the position of inductance coils 3 relatively fixed. In-process of concatenation, because card wire casing 23 all sets up the side in holding chamber, PIN needle 11 runs through card wire casing 23, and inductance coils 3 just can not be stabbed to PIN needle 11, and then solve the in-process PIN of lid 1 and the concatenation of base 2 and can stab the problem of losing inductance coils 3. And it is easy to understand, in order to make PIN 11 and lead wire clamp in card wire casing 23, the groove width of card wire casing 23 must be less than or equal to the sum of the widths of PIN 11 and lead wire. Firstly, the PIN needle 11 and the lead wire are wound or clamped on the cover, and then the cover is covered and penetrates through the wire clamping groove 23 on the base 1. It is difficult for the lead and PIN 11 to pass through the lead groove 23. And the PIN 11 is easier and more convenient to pass through the wire clamping groove 23 and clamp the lead by firstly passing the lead in the wire clamping groove 23 and then covering the cover 1.

In order to detect whether the base 2 is inserted into the limited position, that is, whether the lead port 222 is communicated with the lead groove 13, the front end and the rear end of the cover 1 are provided with the observation grooves 14. The observation groove 14 penetrates through the side wall of the cover 1, the observation groove 14 extends along the height direction of the cover body, and the length of the observation groove 14 is the same as the distance between the surface of the positioning block 12 and the opening of the cover 1. Whether the base 2 insertion position reaches the limit position is observed through the observation groove 14.

In a further embodiment, the baffle 12 is provided with a lead port 221. As a specific implementation manner, the blocking plate in this embodiment includes a plurality of sub-plates, and a gap is left between two adjacent sub-plate assemblies to form the lead opening 221. When the cover 1 is spliced with the base 2, the lead port 222 is respectively communicated with the lead groove 13 and the accommodating cavity, and the lead 31 on the inductance coil 3 sequentially passes through the lead port 222 and the lead groove 13 to enter the wire clamping groove 23. The lead 31 is prevented from passing through the joint of the base 2 and the inner wall of the cover 1 through the lead port 222, and further the lead 31 is prevented from being pressed and damaged due to the joint of the base 2 and the inner wall of the cover 1.

And in the present embodiment, the number of the PIN 11 is plural, and the plural PIN 11 are provided along the length direction of the cover 1. The number of card wire casing 23 is a plurality of, and a plurality of card wire casing 23 follow the length direction setting of base 2. The lead slots 13, the wire clamping slots 23 and the PIN needles 11 are the same in number and correspond to one another. Each lead 31 enters the card line groove 23 through the lead opening 222 and the lead groove 13 to be connected with the PIN needle 11.

As a preferred embodiment, the distance between the edge of the PIN 11 and the inner wall of the wire clamping groove 23 in this embodiment is smaller than the diameter of the lead 31 of the inductance coil 3. The PIN 11 can press and fix the end part of the lead 31 of the inductance coil 3 with the inner wall of the wire clamping groove 23. Adopt PIN needle and draw-in groove 1 inner wall to sticis fixed connected mode with lead wire 31 tip, replace traditional wire winding connected mode, the technology becomes simple, uses manpower sparingly and processing cost.

The base 2 is provided with vent holes 21 to form an open skeleton. Converted into an open type by a traditional sealed shell. The ventilation opening 24 is applied with a proper amount of adhesive and baked and cured, so that the inductance coil 3 is fixed with the shell and further bonded firmly to assemble the upper and lower parts of the embedded network filter, and the production process of the network filter is completed. And a large amount of chemical gas can be generated in the process of applying a proper amount of adhesive, baking and curing, gas generated by chemical reactions such as corrosion of a chemical solvent in the shell can be discharged through the vent holes 21, volatilization of gas in the product is facilitated, and the lack of product quality is ensured.

Example 2

As shown in fig. 4 to 6, the present embodiment provides an embedded assembled network filter, which includes the embedded assembled network filter housing described in embodiment 1. An inductance coil 3 is placed in the cavity. The PIN 11 and the lead wire 31 of the inductance coil 3 are pressed and fixed in the slot of the wire clamping slot 23, and the tail end of the PIN 11 and the lead wire of the inductance coil 3 are connected with the notch of the wire clamping slot 23 on the outer wall of the base 2 by soldering tin.

Meanwhile, the embodiment provides an assembling method based on the embedded assembled network filter, which includes the following steps:

placing an inductance coil in an accommodating cavity formed by the baffle plate 22 and the base 2;

a lead wire 31 of the stretch inductance coil 3 passes through the lead wire opening 222 and extends into the wire clamping groove 23, and the lead wire 31 is attached to the PIN needle 11;

cutting off the redundant lead wire 31 of the inductance coil by using a tool, and keeping a certain length;

the cover 1 and the base 2 are covered, the base 2 covers the opening of the opening structure of the cover 1, so that the PIN 11 penetrates through the wire clamping groove 23, and the PIN 11 and the lead wire are clamped in the wire clamping groove 23;

observing whether the embedding position of the base 2 reaches a limited position through the observation groove 14 to finish the product structure forming;

the PIN needle 11 is kept fixedly connected with the base 2 through the tail end of the PIN needle 11 and lead wire tin immersion;

finally, a proper amount of adhesive is applied from the vent holes 21 and is baked and cured, so that the inductance coil is fixed with the shell and is further bonded firmly with the upper part and the lower part of the embedded assembled network filter, and the production process of the network filter is completed.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An embedded assembled network filter shell is characterized by comprising

2. The embedded assembled network filter casing as claimed in claim 1, wherein the base has a cavity with an opening on one side, the cavity is used for placing an inductor before the base and the cover are spliced, the wire-clamping slot is disposed on the surface of the base, and the wire-clamping slot is located beside the cavity.

3. The embedded assembled network filter housing of claim 2, wherein the cover is provided with a positioning block for limiting the base to the open structure feed stroke to prevent the base from touching the inductance coil.

4. The embedded assembled network filter shell as claimed in claim 3, wherein the locating block is provided with a PIN and a lead slot for passing a lead, the lead slot penetrates through the end face of the locating block provided with the PIN and the side wall for forming the cavity, and the bottom of the lead slot is obliquely arranged relative to the inner wall of the top plate of the cover; and when the cover is spliced with the base, the lead slot is communicated with the wire clamping slot.

5. The embedded assembled network filter shell as claimed in claim 4, wherein the base is provided with a baffle, the baffle and the base form the accommodating cavity, and the baffle is provided with lead ports penetrating through two side walls of the baffle; when the cover is spliced with the base, the lead port is respectively communicated with the lead groove and the accommodating cavity.

6. The embedded assembled network filter shell as claimed in claim 1, wherein the distance between the edge of the PIN and the inner wall of the wire clamping groove is smaller than the diameter of the lead of the inductance coil, and the PIN and the inner wall of the wire clamping groove can press and fix the end of the lead of the inductance coil.

7. The embedded assembled network filter housing of claim 1, wherein the base is capable of being embedded in the cavity of the upper cover, and the upper cover is in interference fit with the base.

8. The embedded assembled network filter housing of claim 1, wherein the base is provided with a vent.

9. An embedded assembled network filter, characterized in that, including the embedded assembled network filter casing of any of claims 2-8, place inductance coils in the cavity, and the PIN needle with inductance coils's lead wire in card wire casing inslot sticiss fixedly.

10. The method for assembling an embedded assembled network filter according to claim 9, comprising the steps of: