CN210015855U

CN210015855U - Chip module and electric connector using same

Info

Publication number: CN210015855U
Application number: CN201921294433.7U
Authority: CN
Inventors: 商君
Original assignee: Kunshan Jiahua Automotive Electronics Technologies Co Ltd
Current assignee: Kunshan Jiahua Automotive Electronics Technologies Co Ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-02-04
Anticipated expiration: 2029-08-12

Abstract

The utility model discloses a chip module and use electric connector of this chip module belongs to electric connector technical field. The electric connector comprises a plastic shell and a chip module, wherein the chip module comprises a main body part and a chip, wherein the main body part is fixedly provided with a plurality of PIN PINs. Through set up the chip groove on the main part and be used for placing the chip, make the chip and filling the injection moulding material area of contact of annotating the high temperature to plastic housing intussuseption and reduce, reduce the risk that the chip damaged, still fix the position of chip simultaneously, reduce the chip because of the inefficacy that offset leads to. Compared with the prior art, the utility model overcomes the electric connector who uses the chip module leads to the chip to damage and the impact and the extrusion of the material of moulding plastics to lead to the chip to produce the problem that the skew leads to the chip to become invalid because of the material high temperature that moulds plastics moulding plastics at the in-process of moulding plastics, has improved the qualification rate of the electric connector who uses the chip module.

Description

Chip module and electric connector using same

Technical Field

The utility model belongs to the technical field of the electric connector technique and specifically relates to a chip module and use electric connector of this chip module.

Background

A chip is also called an integrated circuit, and is a miniaturized circuit formed by integrating a circuit on a substrate or a circuit board.

With the advance of science and technology, various chip structures for different purposes appear on the market, wherein one mode of use of the chip is as a part of a connector, the chip and the electrical connector are generally formed into a module form, and the chip and the electrical connector are connected with an external circuit through a PIN PIN.

The utility model relates to a chip is a rotary displacement sensing device for magnetic force induction, this chip requires to be higher to temperature requirement and relative position, if the chip is located too high or the offset of chip too big then can lead to the chip to damage or respond to inefficacy, and at the in-process of making electric connector, need to mould plastics the whole or partial parcel chip of material in order to form complete connector, at the in-process of filling hot melt injection moulding material, how guarantee that the chip does not take place to damage or lose efficacy and become the problem that needs to solve with the qualification rate that improves electric connector under the injection moulding material cladding of high temperature and the extrusion of injection moulding material.

SUMMERY OF THE UTILITY MODEL

The utility model provides a chip module and use electric connector of this chip module to solve above-mentioned technical problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a chip module comprises a main body part and a chip, wherein a plurality of PIN needles are fixed on the main body part, the main body part is provided with a top surface and a bottom surface opposite to the top surface, the middle position of the top surface is concavely provided with a chip groove, the PIN needles are fixed at one end position of the chip groove, the chip is arranged in the chip groove, the extending direction of the PIN needles is the X direction, the arranging direction of the PIN needles is the Y direction, the thickness direction of a PIN needle plate is the Z direction, the chip groove comprises a plurality of fixing parts, and the PIN needles protrude to the chip groove; the chip comprises a plurality of PINs, and each PIN is correspondingly limited between two adjacent fixing parts along the Y direction and is electrically connected with the PIN needle.

Further, each fixed part upwards protrudes from the tank bottom in the chip groove of main part and stretches the formation, the fixed part includes a plurality of first fixed blocks that set up side by side and a plurality of second fixed blocks that set up side by side, first fixed block at least part covers in the upper surface of PIN needle, the second fixed block is spacing the PIN.

Further, the PIN includes the extension that is close to the chip and extends and keep away from the portion of bending of chip from the extension, the extension is spacing fixed by the second fixed block, the portion of bending is spacing fixed by first fixed block, the portion of bending is connected with PIN needle electricity.

Furthermore, the main body part is provided with a plurality of grooves which are arranged at two sides of the chip groove and are downwards concave from the top surface, each groove is communicated with the chip groove along the Y direction, a third fixing block is convexly arranged in each groove, and the chip is limited and fixed by the plurality of third fixing blocks.

Furthermore, the two sides of the chip correspond to the grooves to form fins, and the fins protrude into the grooves and are limited and fixed by a third fixing block.

Furthermore, two sides of the chip groove are respectively provided with at least two grooves, and the grooves on the two sides of the chip groove are arranged in a staggered manner in the Y direction.

Further, the chip does not protrude to the upper surface of the body portion.

In order to achieve the above purpose, the utility model discloses still adopt following technical scheme:

an electric connector comprises the chip module and a plastic shell, wherein the plastic shell is fixed with the chip module through integral forming, an accommodating cavity is formed in the plastic shell and forms a port, the accommodating cavity is used for being in butt joint with a butting connector, one end of a pin needle protrudes into the accommodating cavity in a cantilever shape, and a combination body formed by the plastic shell and a main body portion completely covers a chip.

Further, the main part of chip module exposes outside plastic casing, and the one end that the PIN needle was kept away from to the main part of chip module is equipped with the constant head tank, the constant head tank runs through the top surface and the bottom surface of main part along the Z direction, constant head tank symmetric distribution is in the both sides of main part, plastic casing corresponds the sunken formation groove of stepping down in position with the constant head tank, step down groove and constant head tank adaptation and communicate with the external world.

Further, the main body part further comprises two positioning holes penetrating through the top surface and the bottom surface 117, the positioning holes are located on two sides of the chip groove, the positioning holes are formed in one end, away from the positioning grooves, positioning columns matched with the positioning holes are arranged in the accommodating cavities of the plastic shell, the positioning holes are matched and fixed with the positioning columns, a pouring gate is further formed in the plastic shell, and the pouring gate is located at the end part, away from one end, of the port of the accommodating cavity, of the plastic shell.

Has the advantages that: the utility model discloses a set up the main part structure for the chip is at the support in-process that forms the connector, is protected. Compared with the prior art, the utility model overcomes the electric connector who uses the chip module leads to the chip to damage and the impact and the extrusion of the material of moulding plastics to lead to the chip to produce the problem that the skew leads to the chip to become invalid because of the material high temperature that moulds plastics moulding plastics at the in-process of moulding plastics, has improved the qualification rate of the electric connector who uses the chip module.

Drawings

Fig. 1 is a schematic structural diagram of the chip module according to the present invention.

Fig. 2 is a schematic structural diagram of the main body portion of the chip module according to the present invention.

Fig. 3 is a schematic structural diagram of the chip of the present invention.

Fig. 4 is a cross-sectional view of the electrical connector using the chip module according to the present invention, wherein the cross-sectional view is specifically cut along a plane perpendicular to the plate thickness direction (Z direction) of the pin and located at an intermediate position of the plate thickness direction of the pin, wherein a section line is not shown.

Fig. 5 is a cross-sectional view of the electrical connector using the chip module of the present invention, wherein the electrical connector is specifically cut along another plane perpendicular to the arrangement direction (Y direction) of the Pin pins and cut at the Pin position, wherein the section line is not shown. In addition, in order to show the process principle of the electrical connector of the present invention, fig. 5 is a line drawing with a bottom color, wherein the arrow on the plastic housing represents the flow direction of the hot melt injection molding material when the plastic housing is injection molded.

Fig. 6 is a complete perspective view of the electrical connector of the present invention.

Each of fig. 1 to 6 is labeled as: the chip module 10, the main body 11, the chip slot 111, the fixing portion 112, the first fixing block 1121, the second fixing block 1122, the groove 113, the third fixing block 1131, the positioning slot 114, the positioning hole 115, the top surface 116, the bottom surface 117, the chip 12, the PINs 121, the extension portion 1211, the bending portion 1212, the PIN 13, the plastic housing 20, the accommodating cavity 21, the port 211, the relief groove 22, the positioning post 23, and the gate 24.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without any creative effort belong to the protection scope of the present invention.

As shown in fig. 1 and 2, the chip module 10 according to the present invention includes a main body 11 to which a plurality of PIN PINs 13 are fixed, and a chip 12, wherein the main body 11 is formed with a top surface 116 and a bottom surface 117 disposed opposite to the top surface 116. The chip slot 111 is formed by inwardly recessing the middle of the top surface 116, wherein the main body 11 is made of insulating material by injection molding. A plurality of PIN needles 13 are integrated into one piece and fixed at one end of the chip groove 111, and the chip 12 is assembled in the chip groove 111.

For the accuracy of the full-text description, the extending direction of the PIN PINs 13 is defined as the X direction, the arrangement direction of the PIN PINs 13 is defined as the Y direction, and the plate thickness direction of the PIN PINs 13 is defined as the Z direction. The chip groove 111 is internally provided with a plurality of fixing parts 112 formed by upwards protruding the bottom wall of the chip groove 111, one end of the PIN needle 13 protrudes and exposes into the chip groove 111 and forms an internal connection part (not marked), and the other end of the PIN needle 13 protrudes outwards and extends out of the main body part 11 and forms an external connection part (not marked). The internal connection portion is used for electrically connecting with the chip 12, and the external connection portion is used for electrically connecting with an external component (not shown), so that the chip 12 is electrically connected with the external component.

Each fixing portion 112 is formed by protruding upward from the bottom surface 117 of the chip slot 111 of the main body portion 11, the fixing portion 112 includes a plurality of first fixing blocks 1121 arranged side by side along the Y direction and a plurality of second fixing blocks 1122 arranged side by side along the Y direction, and the row of second fixing blocks 1122 and the row of first fixing blocks 1121 are arranged in two rows in the front-back direction along the X direction. In this embodiment, the chip 12 includes a plurality of PINs 121, each of the PINs 121 includes an extension portion 1211 close to the chip 12 and a bending portion 1212 extending from the extension portion 1211 and away from the chip 12, wherein the extension portion 1211 is connected to a circuit in the chip 12, the bending portion 1212 is connected to the PIN 13, each of the extension portions 1211 is limited and fixed by two adjacent second fixing blocks 1122, and the bending portion 1212 is correspondingly limited between two adjacent first fixing blocks 1121. The first fixing block 1121 and the second fixing block 1122 fix the leads 121 from the bent portion 1212 and the extending portion 1211, that is, fix the leads 121 of the bent chip 12 from the front end and the rear end of the leads 121, so that the stability of the chip 12 when the chip 12 is assembled into the main body 11 is improved, the leads 121 are not easily displaced when being impacted by external force (especially when the plastic housing 20 is formed by injection molding), and the possibility of poor contact between the leads 121 of the chip 12 and Pin needles is reduced. The number of PINs 121 of the chip 12 in the present embodiment is 3, and in actual use, the number of PINs 121 of different chips 12 is different, and the number of PIN PINs 13 in the corresponding chip module 10 is increased or decreased accordingly.

Referring to fig. 1 in combination with fig. 2, in the present design, the first fixing block 1121 at least partially covers the upper surface of the PIN 13 (not shown visually because of an angle problem in the drawing), the PIN 13 can be fixed by the first fixing block 1121, and the first fixing block 1121 is adapted to the actual width of the PIN 121 of the chip 12, so as to ensure that the adjacent first fixing block 1121 can fix each PIN 121, and simultaneously, when the PIN 13 is abutted to an external component, the first fixing block 1121 can provide a back-holding force for the PIN 13, so as to prevent the PIN 13 from moving toward the inside or outside of the chip slot 111 along the X direction to peel off the main body 11, thereby ensuring the contact stability between the PIN 13 and the PIN 121 of the chip 12. Since the pins 121 of the chip 12 are slender, the pins 121 are easily deformed to cause displacement and looseness when being extruded by external force or expanded with heat and contracted with cold, in this embodiment, the first fixing block 1121 and the second fixing block 1122 are adopted to simultaneously limit the pins 121, so that poor contact of conductive circuits of the connector due to displacement and looseness of the pins 121 of the chip 12 can be prevented.

The chip 12 in this embodiment is a magnetic sensing rotary displacement sensor, which requires both X, Y and Z positions of the chip 12, and if the offset is too large, the chip 12 will fail, and the temperature of the chip 12 is also required, and the maximum ambient temperature of the chip 12 is less than 260 ℃, and the chip 12 cannot be in this environment for more than 10 seconds. In this embodiment, the chip 12 is disposed in the chip slot 111 of the main body 11 to fix and protect the chip 12, and meanwhile, since the chip 12 is disposed in the chip slot 111, the contact area between the chip 12 and the outside is greatly reduced, so that the adaptability of the chip 12 in a high-temperature environment is improved, the problem that the chip 12 is damaged due to the fact that the temperature around the chip 12 is too high is solved, and particularly, the plastic shell 20 is formed by injection molding.

In a further embodiment, the main body 11 of the chip module 10 is recessed downward from the top surface 116 to form grooves 113 located at two sides of the chip slot 111, the grooves 113 are communicated with the chip slot 111 along the Y direction, a third fixing block 1131 for fixing the chip 12 is disposed in the grooves 113, fins 122 are formed at two sides of the chip 12 corresponding to the grooves 113, the fins 122 protrude into the grooves 113 and are limited and fixed by the third fixing block 1131, the chip 12 and the main body can be further limited and fixed by the third fixing block 1131, and the risk of the chip 12 shifting when being impacted by an external force is reduced. In addition, in order to make the chip 12 uniformly stressed when the chip 12 is pressed by an external force, in the Y direction, each side of the chip slot 111 is provided with at least two grooves 113, and the grooves 113 located at both sides of the chip slot 111 are staggered, that is, the third fixing blocks 1131 are distributed in a staggered manner in the Y direction, so that the chip 12 has a plurality of limiting fixing points in the Y direction, and the capability of the chip 12 to resist the external force pressing or vibration is further improved.

As shown in fig. 4 to 6, the present invention further provides an electrical connector using the chip module 10, specifically, the electrical connector includes the chip module 10 and a plastic housing 20, the plastic housing 20 is wrapped around the chip module 10 by injection molding and forms an accommodating cavity 21 at one end, the accommodating cavity 21 extends along the X direction and forms a port 211, and the accommodating cavity 21 is used for being inserted into an external component (e.g., a docking connector).

In a further embodiment, the end of the main body 11 of the chip module 10 away from the PIN 13 is provided with a positioning slot 114, the positioning grooves 114 penetrate through the top surface 116 and the bottom surface 117 of the main body 11 in the Z direction, the positioning slots 114 are symmetrically distributed on both sides of the main body 11, the plastic casing 20 is recessed to form relief slots 22 corresponding to the positioning slots 114, the receding groove 22 and the positioning groove 114 are adapted and communicated with the outside, and through the cooperation of the positioning groove 114 and the receding groove 22, when the plastic housing 20 is injection molded, the mold core can be inserted to position the chip module 10, since the chip 12 is fixed to the chip groove 111 of the main body 12, the chip 12 is fixed in the X direction and the Y direction, thereby realizing the positioning of the chip 12 in the X direction and the Y direction, reducing the problem of the offset of the chip 12, meanwhile, the chip module 10 is positioned and fixed in the X direction and the Y direction, and the straightness of the PIN needle 13 in the Y direction can also be guaranteed.

In a further embodiment, the main body 11 of the chip module 10 further includes two positioning holes 115 penetrating through the top surface 116 and the bottom surface 117, the positioning holes 115 are located on two sides of the chip slot 111, the positioning holes 115 are opened at an end away from the positioning slot 114, a positioning post 23 is disposed in the accommodating cavity 21 of the plastic housing 20 and is engaged with the positioning holes 115, and the positioning holes 115 and the positioning post 23 are engaged and fixed to stably and firmly hold the chip module 10 and the plastic housing 20. In this design, the positioning post 23 is actually formed by hot-melt injection molding material of the injection molding plastic housing 20.

In a further embodiment, with reference to fig. 5 and fig. 6, the plastic housing 20 is formed with a gate 24 for injecting a hot-melt injection molding material during injection molding, the gate 24 is located at an end of the plastic housing 20 away from the end 211 of the receiving cavity 21, the assembly of the plastic housing 20 and the main body 11 completely covers the chip 12, and the main body 11 is partially exposed outside the plastic housing 20 for providing a mold core positioning during injection molding of the plastic housing 20. Set up runner 24 in the tip of keeping away from the one end of accepting the port 211 of chamber 21, can guarantee that the material of moulding plastics flows smoothly, and the material of moulding plastics can be because of the temperature difference cools off gradually, and the material of moulding plastics covers chip 12 on the chip module 10 after partly cooling down earlier, has reduced the risk of the chip 12 damage that leads to because of the material temperature of moulding plastics is too high. The chip 12 does not protrude to the top surface 116 of the main body 11, meanwhile, the injection molding material is poured from the gate 24 and flows transversely to the chip 12 to cover the chip 12 and the main body 11, the impact force of the injection molding material in the vertical direction is eliminated by the main body 11, the impact force of the injection molding material to the chip 12 in the vertical direction is further reduced, and therefore the problem that the chip 12 is damaged due to the impact force of the injection molding material is solved. In addition, the main body part 11 has a certain wrapping property on the chip 12, so that the contact area between the chip 12 and the high-temperature injection molding material is reduced, a certain heat insulation effect is achieved, and the damage of the high-temperature injection molding material to the chip 12 is further reduced.

The following introduces a manufacturing method of the electrical connector, which mainly comprises the following steps:

a: providing a chip 12 and a Pin needle 13, and forming a main body part 11 fixed with the Pin needle 13 through injection molding;

b: mounting the chip 12 in the chip slot 111 of the main body 11, fixing the chip 12 by the third fixing block 1131, fixing the PINs 121 of the chip 12 by the first fixing block 1121 and the second fixing block 1122, and electrically connecting the PINs 121 of the chip 12 and the PIN PINs 13 (which is implemented by soldering in this design);

c: the chip module 10 is placed in an injection mold (not shown), and a hot-melt plastic material is injected to form the plastic housing 20. The bottom surface 117 of the main body 11 is exposed to the outside of the plastic housing 20, and the plastic housing is cooled and solidified to form the complete electrical connector.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

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

Claims

1. A chip module comprises a main body part and a chip, wherein the main body part is fixed with a plurality of PIN needles, the chip module is characterized in that the main body part is provided with a top surface and a bottom surface which is arranged opposite to the top surface, the middle position of the top surface is concavely provided with a chip groove, the PIN needles are fixed at one end position of the chip groove, the chip is arranged in the chip groove, the extension direction of the PIN needles is the X direction, the arrangement direction of the PIN needles is the Y direction, the thickness direction of a PIN needle plate is the Z direction, the chip groove comprises a plurality of fixing parts, and the PIN needles protrude to the chip groove; the chip comprises a plurality of PINs, and each PIN is correspondingly limited between two adjacent fixing parts along the Y direction and is electrically connected with the PIN needle.

2. The chip module according to claim 1, wherein each of the fixing portions protrudes upward from a bottom surface of the chip slot of the main body portion, the fixing portions include a plurality of first fixing blocks arranged side by side and a plurality of second fixing blocks arranged side by side, the first fixing blocks at least partially cover an upper surface of the PIN, and the second fixing blocks position the PIN.

3. The chip module according to claim 2, wherein the PIN comprises an extension portion close to the chip and a bending portion extending from the extension portion and away from the chip, the extension portion is fixed and limited by the second fixing block, the bending portion is fixed and limited by the first fixing block, and the bending portion is electrically connected with the PIN.

4. The die set of claim 1, wherein the main body is recessed from the top surface to form a plurality of recesses on opposite sides of the die slot, each recess communicating with the die slot in the Y-direction, a third retaining block protruding into the recess, and the die is retained by the plurality of third retaining blocks.

5. The chip module as set forth in claim 4, wherein the two sides of the chip form fins corresponding to the respective grooves, and the fins protrude into the grooves and are retained by the third retaining block.

6. The chip module according to claim 1, wherein the chip slot has at least two grooves on both sides thereof, and the grooves on both sides of the chip slot are staggered in the Y direction.

7. The chip module according to claim 1, wherein: the chip does not protrude to the upper surface of the body portion.

8. An electrical connector comprising the chip module according to any one of claims 1 to 7 and a plastic housing, wherein the plastic housing is fixed to the chip module by integral molding, the plastic housing is formed with a receiving cavity and a port, the receiving cavity is used for being abutted with a butting connector, one end of the PIN protrudes into the receiving cavity in a cantilever manner, and the assembly of the plastic housing and the main body completely covers the chip.

9. The electrical connector of claim 8, wherein the main body of the chip module is partially exposed outside the plastic housing, a positioning groove is disposed at an end of the main body of the chip module, which is away from the PIN, and the positioning groove penetrates through the top surface and the bottom surface of the main body along the Z direction, the positioning grooves are symmetrically distributed at two sides of the main body, the plastic housing is recessed from a corresponding position of the positioning groove to form a yielding groove, and the yielding groove and the positioning groove are adapted and communicated with the outside.

10. The electrical connector of claim 8, wherein the main body further comprises two positioning holes extending through the top and bottom surfaces 117, the positioning holes are located on two sides of the chip slot, the positioning holes are opened at an end away from the positioning slot, the positioning post is located in the receiving cavity of the plastic housing, the positioning hole is fixed to the positioning post, the plastic housing further forms a gate, and the gate is located at an end of the plastic housing away from the end of the receiving cavity.