CN111509435B

CN111509435B - Injection molding framework circular electrode connector and manufacturing method thereof

Info

Publication number: CN111509435B
Application number: CN202010311708.4A
Authority: CN
Inventors: 朱赫; 杜建东; 蒋磊
Original assignee: Suzhou Huayang Aerospace Electric Co Ltd
Current assignee: Suzhou Huayang Aerospace Electric Co Ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2021-08-24
Anticipated expiration: 2040-04-20
Also published as: CN111509435A

Abstract

The invention provides an injection molding framework circular electrode connector, which comprises a shell assembly, an embedded assembly and a plurality of contact elements, wherein the embedded assembly and the plurality of contact elements are arranged in the shell assembly; the part of the embedded assembly part embedded into the shell assembly part is electrically connected with the contact piece arranged on the shell assembly part. The invention provides an injection molding framework circular electrode connector and a manufacturing method thereof, and the injection molding framework circular electrode connector has the advantages of wear resistance, high temperature and high hydraulic pressure resistance, higher structural member strength and larger application space range, and adopts multi-core circumference uniform distribution to acquire signals.

Description

Injection molding framework circular electrode connector and manufacturing method thereof

Technical Field

The invention relates to the technical field of connectors, in particular to an injection molding framework circular electrode connector and a manufacturing method thereof.

Background

At present, with the continuous development of connector types, the demand for connectors is more and more diversified. It is desirable that the connector itself be used as both a structural member and an electrical connector. The function and structure of the electric connector in the well logging field are particularly complex, the electrode connector and the component are required to meet the structural strength in high-temperature and high-hydraulic resistant environments, and the low impedance characteristic of electric signal acquisition is also required, so that strict requirements are imposed on the design of products.

Prior art connectors, for example, patent application nos.: CN201810872183.4, patent name: the utility model provides an electric connector convenient to dismantle, discloses an electric connector convenient to dismantle, including electric connector plug and electric connector socket, the inside of electric connector plug is provided with first insulator, and first insulator is inside to run through respectively has first electrically conductive contact pin and the electrically conductive contact pin of second, the surface cover of first electrically conductive contact pin is equipped with first insulating sleeve, the surface cover of the electrically conductive contact pin of second is equipped with the insulating sleeve of second, the internal surface of electric connector plug just is provided with ring baffle with a terminal surface contact position department of first insulator.

The electric connector structure in the prior art has the defects of insufficient strength, poor wear-resisting property and small application space range of the connector. The demand for electrical connectors is particularly high in oil production equipment. It is desirable to have good bearing capacity while maximizing the use of oil recovery equipment space. Meanwhile, the electric connector in the prior art is generally used as a signal connecting and transmitting device and generally cannot be used as a structural member to be a main structure of equipment.

Disclosure of Invention

The invention overcomes the defects of the prior art, provides the injection molding framework circular electrode connector and the manufacturing method thereof, and solves the problems of insufficient strength and poor wear resistance of the structural part of the prior electric connector.

In order to achieve the purpose, the invention adopts the technical scheme that: a circular electrode connector of an injection molding framework comprises a shell assembly, an embedded assembly and a plurality of contact elements, wherein the embedded assembly and the plurality of contact elements are arranged in the shell assembly; the part of the embedded assembly part embedded into the shell assembly part is electrically connected with the contact piece arranged on the shell assembly part.

In a preferred embodiment of the invention, the inner engaging member comprises a plurality of crimping members; the compression joint part comprises a straight contact pin, a bent contact pin and a high-temperature lead for connecting the straight contact pin and the bent contact pin; and the outer parts of the joints among the straight contact pins, the high-temperature lead and the bent contact pins are wrapped with insulating layers.

In a preferred embodiment of the present invention, the inner fitting further comprises an adapter support ring and a fixing ring; the adapter support ring and the fixing ring are provided with a plurality of compression joint pieces, support columns a and support columns b.

In a preferred embodiment of the invention, the straight inserting needle comprises a first crimping section, a first periodic sealing groove section and a second inserting section which are sequentially arranged; the curved insertion needle comprises a thin needle section and a thick needle section which are arranged in sequence; the thick needle section is provided with an accommodating hole; the thin needle section comprises a crimping section II, a periodic sealing groove section II and a bending section which are sequentially arranged, and the bending section is connected with the thick needle section; the first crimping section is connected with the second crimping section through a high-temperature lead.

In a preferred embodiment of the present invention, a metal elastic member is embedded in the receiving hole, and the press-fit member is electrically connected to the contact member through the receiving hole and the metal elastic member.

In a preferred embodiment of the invention, a plurality of the crimping parts are positioned and arranged through a fixing ring; the fixing ring is provided with a plurality of T-shaped grooves for inserting the compression joint piece, and the T-shaped grooves are circumferentially distributed on the end face of the fixing ring; and a plurality of threaded holes are formed in the fixing ring, the threaded holes are distributed on the circumferential curved surface of the fixing ring, and the T-shaped groove is communicated with the corresponding threaded holes.

In a preferred embodiment of the invention, the middle part of the outer wall of the switching support ring is provided with a ring groove, two ends of the switching support ring are respectively an a end surface and a b end surface, the a end surface is provided with a plurality of first through grooves for arranging the straight pins, the b end surface is provided with a plurality of second through grooves for correspondingly arranging the bent pins, and the plurality of second through grooves are uniformly distributed in the b end surface of the switching support ring in a circumferential manner; the end face a of the switching support ring is also provided with a plurality of slotted holes for arranging the support column a.

In a preferred embodiment of the present invention, the housing assembly is a tubular structure, a plurality of mounting grooves are uniformly distributed on the circumferential curved surface of the housing assembly, and the contact member is arranged in the mounting groove; the mounting groove comprises an outer groove and an inner groove; the contact element comprises a second electrode block arranged in the outer groove and a first electrode block arranged in the inner groove, and the second electrode block is not contacted with the first electrode block; the crimping assembly in the housing assembly is electrically connected to the contact member by a metal spring.

In a preferred embodiment of the present invention, a method for manufacturing an injection molding framework circular electrode connector comprises: comprises the following steps of (a) carrying out,

step one, assembling an embedded assembly; one end of each of the compression joint parts is positioned and supported through a fixing ring, and the other end of each compression joint part is combined with the switching support ring to form an embedded joint part; the screw is screwed into a threaded hole formed in the fixing ring, and the compression joint piece and the fixing ring are limited and combined;

combining the embedded assembly and the shell assembly; placing the embedded assembly into an injection mold for injection molding to form an injection molding assembly; screwing out the screw on the injection molding assembly; turning the injection molding assembly to form a shell assembly;

step three, mounting a contact element and a metal elastic element on the shell assembly; and embedding the contact element into the outer surface of the shell assembly, and electrically connecting the contact element with the compression assembly in the embedded assembly.

In a preferred embodiment of the present invention, a method for manufacturing an injection molding framework circular electrode connector comprises:

one end of the compression joint piece is provided with an inwards concave receiving hole, and the receiving hole is also provided with a blocking block for blocking the receiving hole; correspondingly embedding the plugging blocks of the compression joint piece into the fixed ring; a plurality of mounting grooves corresponding to the receiving holes of the compression joint part are arranged outside the shell joint part; turning and removing the plugging block in the embedded part to expose the accommodating hole; the metal elastic piece is placed into the accommodating hole, the contact piece is installed into the installation groove, the contact piece is in butt joint with the compression joint piece, and the compression joint piece is electrically connected with the contact piece through the metal elastic piece.

The beneficial technical effects of the invention are as follows:

the circular electrode connector is realized by adopting peek injection molding, has high wear resistance and structural strength, and can be used as an equipment main body and a connector.

The invention collects signals through a plurality of contact pieces arranged on the circular electrode connector. The contact element is formed by combining the electrode block II and the electrode block I, and the bent insertion needle is electrically connected with the electrode block II and the electrode block I through the metal elastic element, so that the electrode connector can realize the acquisition and transmission of multi-core signals, and is more favorable for being combined with a sensor to realize the classified acquisition of the signals.

The plurality of pairs of straight contact pins are divided into two groups, each group of straight contact pins is divided into an inner layer and an outer layer, the straight contact pins and the straight contact pins are distributed at a fixed angle, the plurality of pairs of bent contact pins are uniformly distributed at a circumferential angle, and the bent contact pins are electrically connected with the straight contact pins through high-temperature leads, so that the electrode connector can work in a structural member mode under a high-temperature and high-hydraulic environment. The fixed high temperature wire of switching support ring to and the integrated configuration of crimping closes the piece, avoided processing the contact pin of specific shape, can reduce cost.

The shell closes between piece and electrode block two and the electrode block one through equipment, gummed mode with electrode block two and electrode block one fix in the mounting groove, reduce the degree of difficulty and the processing cost of moulding plastics.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic cross-sectional view of a housing assembly having a second electrode block and a first electrode block mounted thereon in a connector according to a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of the housing assembly of the preferred embodiment of the present invention without the contact mounted thereto;

FIG. 3 is a perspective view of the housing assembly of the preferred embodiment of the present invention without the contact;

FIG. 4 is a schematic front view of an injection molded part of a preferred embodiment of the present invention without turning;

FIG. 5 is a schematic perspective view of an injection molded part according to a preferred embodiment of the present invention before turning;

FIG. 6 is a cross-sectional structural schematic view of the injection molded part of the preferred embodiment of the present invention without turning;

FIG. 7 is a side view of a screw threaded hole in an inner engaging member of the preferred embodiment of the present invention;

FIG. 8 is a schematic perspective view of an inner assembly according to a preferred embodiment of the present invention (without a high temperature wire);

FIG. 9 is a schematic structural view of a crimp fitting of the preferred embodiment of the present invention;

FIG. 10 is a cross-sectional view of a straight pin of the preferred embodiment of the present invention;

FIG. 11 is a schematic cross-sectional view of a bent pin of the preferred embodiment of the present invention;

FIG. 12 is a side view of the adaptor support ring of the preferred embodiment of the present invention;

FIG. 13 is a schematic structural view of a retaining ring of the preferred embodiment of the present invention;

figure 14 is a side view of support post a of the preferred embodiment of the present invention;

figure 15 is a side view of support post b of the preferred embodiment of the present invention;

FIG. 16 is a schematic structural diagram of a first electrode block of the preferred embodiment of the present invention;

FIG. 17 is a schematic structural view of a second electrode block according to the preferred embodiment of the present invention;

FIG. 18 is a schematic diagram of the spring structure of the preferred embodiment of the present invention;

FIG. 19 is an enlarged partial schematic view of FIG. 1;

wherein, 1-electrode connector, 10-injection molding assembly, 11-shell assembly, 111-through cavity, 112-installation groove, 113-plug-in part, 114-connection part, 115-outer groove, 116-inner groove, 2-inner assembly, 3-fixing ring, 301-T groove, 302-threaded hole, 303-screw, 4-switching support ring, 401-through groove I, 402-through groove II, 403-annular groove, 404-slotted hole, 405-a end face, 406-b end face, 5-compression joint assembly, 51-straight pin, 511-compression joint section I, 512-periodic sealing groove section I, 513-plug-in section, 52-high temperature lead, 53-bent pin, 531-fine pin section, 532-coarse pin section, 533-sealing block, 534-a second compression joint section, 535-a second periodic sealing groove section, 536-a bending section, 537-an accommodating hole, 54-a heat shrinkable tube, 6-an elastic part, 7-a first electrode block, 701-a first glue buckling groove, 702-an annular groove, 703-a first inserted rod, 8-a second electrode block, 801-a second glue buckling groove, 802-a second inserted rod, 803-a third boss, 91-a support column and 92-a support column.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings and examples, which are simplified schematic drawings and illustrate only the basic structure of the invention in a schematic manner, and thus show only the constituents relevant to the invention.

It should be noted that, if directional indications (such as up, down, bottom, top, etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative position relationship, motion situation, etc. of each component in a certain posture, and if the certain posture is changed, the directional indications are changed accordingly. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1-19, an injection molding framework circular electrode connector 1 includes a housing assembly 11, an embedded assembly 2 partially embedded in the housing assembly 11, and a plurality of contacts arranged outside the housing assembly 11, wherein the embedded assembly 2 is electrically connected with the contacts. The embedded part 2 is embedded into the shell part 11, the plurality of contact pieces are respectively arranged on the circumferential curved surface outside the shell part 11, one part of the embedded part 2 extends out of the shell part 11, and one part of the embedded part 2 embedded into the shell part 11 is electrically connected with the contact pieces. And a metal elastic piece 6 is arranged between the embedded part 2 and the electric connection part of the contact piece.

As shown in fig. 7 to 15, the inner fitting 2 includes a fixing ring 3 and an adapter support ring 4, and twenty-four press fittings 5, ten support columns a91, and three support columns b92 provided on the fixing ring 3 and the adapter support ring 4. The twenty-four compression joint parts 5 are divided into twelve pairs of compression joint parts 5, and one ends of the twelve pairs of compression joint parts 5 are circumferentially arranged and embedded in the fixing ring 3; the other ends of the twelve pairs of pressing joint pieces 5 penetrate through the switching support ring 4. And the interval angle between a pair of adjacent compression joint parts 5 embedded in the fixed ring 3 is 30 degrees; and the compression joint parts 5 penetrate through one end of the switching support ring 4 and are arranged in two groups oppositely. But not limited thereto, the number of the pressure joint 5 and the supporting columns a91 and b92 can be adjusted according to actual requirements in other embodiments.

Specifically, as shown in fig. 7 to 15, the pressure welding component 5 includes a straight pin 51, a bent pin 53, and a high temperature wire 52 connecting the straight pin 51 and the bent pin 53 in combination. And the pressure contact points of the straight insertion pin 51 and the high-temperature lead 52 and the pressure contact points of the high-temperature lead 52 and the bent insertion pin 53 are respectively wrapped with insulating layers. The insulating layer is heat shrink tubing 54. As shown in fig. 7 and 8, each of the twelve pairs of press-fit components 5 is an L-shaped structure formed by sequentially combining and overlapping a straight insertion pin 51, high-temperature wires 52 with different lengths, and a bent insertion pin 53. As shown in fig. 9 and 10, the straight inserting needle 51 includes a first crimping section 511, a first periodic sealing groove section 512 and a second inserting section 513 connected in sequence. As shown in fig. 9 and 11, the curved inserting needle 53 includes a thin needle section 531 and a thick needle section 532 connected in sequence; the thin needle section 531 comprises a second crimping section 534, a second periodic sealing groove section 535 and a bent section 536 which are connected in sequence, and the bent section 536 is bent by 90 degrees. Curved section 536 connects with thick needle section 532; the first crimping section 511 and the second crimping section 534 are connected through a high-temperature wire 52. The end of the thick needle section 532 remote from the thin needle section 531 is provided with a receiving hole 537. A metal elastic member 6 is embedded in the receiving hole 537. In the present invention, the metal elastic member 6 is preferably a spring.

Specifically, as shown in fig. 8 and 13, the fixing ring 3 is a circular ring structure, the upper end surface of the fixing ring 3 is provided with twelve pairs of T-shaped grooves 301 embedded into the end surface of the fixing ring 3 in a circumferential distribution manner, and the circumference of the fixing ring 3 is provided with twelve pairs of threaded holes 302 embedded into the outer circumferential curved surface of the fixing ring 3 in a circumferential distribution manner. The T-shaped grooves 301 correspond to the threaded holes 302 one to one, and the threaded holes 302 are communicated with the T-shaped grooves 301. Furthermore, the thick needle sections 532 of the curved insertion needles 53 of the twelve pairs of press-fit joint members 5 are respectively embedded into the corresponding T-shaped grooves 301. The fixing ring 3 is also provided with three mounting holes for screwing the supporting column b92, and internal threads are arranged in the mounting holes.

Specifically, as shown in fig. 8 and 12, an annular groove 403 for receiving the high-temperature wire 52 is formed in the middle of the outer wall of the adaptor support ring 4, and the two ends of the adaptor support ring 4 are an a-end surface 405 and a b-end surface 406, respectively. The a end surface 405 of the adapter support ring 4 is provided with two symmetrical groups of through grooves one 401 for penetrating the straight pins 51. Twelve through grooves 401 are formed in each group, the twelve through grooves 401 in each group are divided into six pairs, the twelve through grooves 401 are arranged in front and back two rows, and each row of the six through grooves 401 is provided with six through grooves. The b end surface 406 of the adapter support ring 4 is provided with twelve pairs of through grooves 402 for passing the bent pins 53. Twelve pairs of second through grooves 402 are uniformly distributed on the b-end surface 406 in a circumferential manner. Ten slots 404 for inserting the supporting posts a91 are also provided on the a-side 405 of the adapter support ring 4.

More specifically, twelve pairs of straight pins 51 of twelve pairs of pressing joints 5 in the inner joint member 2 are divided into two groups and correspondingly penetrate through two groups of through grooves 401 which are formed on the switching support ring 4 and are arranged oppositely, and six pairs of straight pins 51 of each group are divided into an inner row and an outer row and are arranged on the switching support ring 4. Twelve pairs of bent pins 53 in the twelve pairs of press-fit joints 5 are uniformly distributed in the second through groove 402 in a circumferential manner around the central axis of the adapter support ring 4, and the central axes of the adapter support ring 4 and the fixing ring 3 are superposed. The straight inserting needle 51 of each pressure joint element 5 is arranged in the first through groove 401 in a penetrating mode, the bent inserting needle 53 of each pressure joint element 5 is arranged in the second through groove 402 in a penetrating mode, the straight inserting needle 51 and the bent inserting needle 53 are connected in a combined mode through a high-temperature lead 52 and a heat shrinkage tube 54, and the high-temperature lead 52 of each pressure joint element 5 is placed in the annular groove 403 of the adapter support ring 4. The twelve pairs of bent pins 53 are symmetrically distributed about the circumference of the b-end surface 406, the twelve pairs of straight pins 51 are exposed out of the end surface of the injection molding part 10, the twelve pairs of straight pins 51 are oppositely distributed in an inner layer and an outer layer, and the exposed lengths of the twelve pairs of straight pins 51 on the a-end surface 405 are the same. Ten slots 404 are inserted into the positioning support posts a 91.

More specifically, as shown in fig. 14, the supporting pillar a91 has a cylindrical structure, in which the middle front section of the supporting pillar a91 is a polished rod, and the middle rear section of the supporting pillar a91 is provided with periodic sealing grooves. The tail end of the supporting column a91 is provided with a first boss. More specifically, be provided with the barb structure that has limiting displacement on the boss of support column a91, switching support ring 4 is the plastics material, and the boss of the barb structure who sets up in support column a91 is pressed into switching support ring 4's slotted hole 404 through interference press-fit mode, guarantees support column a91 and switching support ring 4's fixed for support column a91 does not take place to drop with switching support ring 4, plays the supporting role. As shown in fig. 15, the supporting pillar b92 is a cylindrical structure, wherein the front section of the supporting pillar b92 is a polished rod, the tail end of the supporting pillar b92 is provided with a second boss with external threads, and the supporting pillar b92 is screwed with the mounting hole with internal threads on the end face of the fixing ring 3 through the second boss with external threads to support the fixing ring 3. And the second boss of support post b92 is closer to the tail. Furthermore, the periodic sealing grooves arranged on the supporting column a91, the periodic sealing groove sections one 512 of the straight insertion pins 51 and the periodic sealing groove sections two 535 of the bent insertion pins 53 can be tightly matched with the injection molding body of the casing assembly 11 during the peek injection molding, so that the supporting column a91, the straight insertion pins 51 and the bent insertion pins 53 are prevented from being displaced under the pushing of an external force.

As shown in fig. 1 to 6, the housing assembly 11 is a structure formed by injection molding the inner assembly 2 into the injection molded assembly 10 and then performing secondary processing. The housing assembly 11 is a tubular structure. Step-shaped step surfaces are arranged at two ends of the shell assembly 11, and sealing grooves are formed in the step surfaces at the two ends. Twelve pairs of mounting grooves 112 are uniformly distributed on the outer part of the shell assembly 11 in the circumferential direction. Each of the mounting grooves 112 includes an outer groove 115 of a bar structure provided outside the housing unit 11, and an inner groove 116 of a bar structure provided inside the outer groove 115. The thick pin section 532 of each bent pin 53 of the twelve pairs of uniformly distributed bent pins 53 in the inner closing member 2 corresponds to one mounting groove 112. The thick pin sections 532 of each bent pin 53 correspond to the outer groove 115 and the inner groove 116 of the mounting groove 112, respectively. A spring is disposed in the receiving hole 537 of the bent pin 53. As shown in fig. 18, the spring is a straight spiral spring, the outer diameter of the straight spiral spring is smaller than the diameter of the opening of the receiving hole 537 of the bent insertion pin 53, and the length of the spring is smaller than the depth of the opening of the receiving hole 537.

Specifically, as shown in fig. 1 to 3, 16, and 17, twelve contact pieces correspond to twelve pairs of press-fit joining members 5 one to one. Each contact member includes an electrode block two 8 and an electrode block one 7. The second electrode block 8 and the first electrode block 7 of each contact piece are respectively arranged in an outer groove 115 and an inner groove 116 of the same installation groove 112, the two installation grooves 112 are insulated and isolated through injection molded bodies, and the first electrode block 7 is positioned inside the second electrode block 8. The second electrode block 8 and the first electrode block 7 are uniformly distributed on the circumference of the shell assembly 11. More specifically, as shown in fig. 16, the electrode block i 7 is a strip-shaped structure, one side of the electrode block i 7 is a long and narrow plane, the other side opposite to the long and narrow plane is an arc, and the diameter of the arc of the electrode block i 7 is the same as the outer diameter of the housing assembly 11. An annular groove 702 is machined in the long narrow face of the first electrode block 7, a cylindrical inserting rod 703 is arranged inside the annular groove 702, the first inserting rod 703 is lower than the first electrode block 7 in height, the diameter of the annular groove 702 is larger than the outer diameter of the thick needle section 532 of the bent inserting needle 53, and the diameter of the first inserting rod 703 inside the annular groove 702 is slightly smaller than the opening diameter of the accommodating hole 537 of the thick needle section 532. And a first glue buckling groove 701 is also formed in the side surface of the first electrode block 7.

More specifically, as shown in fig. 17, the second electrode block 8 is a bar structure, one side of the second electrode block 8 is an arc surface, the other side opposite to the arc surface is provided with a third boss 803, and the third boss 803 is further provided with a rectangular groove sleeved outside the inner groove 116, so that the second electrode block 8 forms a rectangular structure. The third boss 803 of the second electrode block 8 is also provided with a second inserted bar 802, the diameter of the cambered surface of the second electrode block 8 is the same as the outer diameter of the casing closing piece 11, and the diameter of the second inserted bar 802 is slightly smaller than the diameter of the opening of the bent insertion pin 53 of the casing closing piece 11. And a second glue buckling groove 801 is further formed in the side face of the second electrode block 8. The gluing groove 801 is used for connecting the first electrode block 7 and the second electrode block 8 with the shell assembly 11 in a gluing mode.

Specifically, the first plunger 703 of the first electrode block 7 in the contact member is inserted into the receiving hole 537 of the thick needle segment 532 corresponding to the inner groove 116 in the housing assembly 11; the second insertion rod 802 of the second electrode block 8 is embedded into the accommodating hole 537 of the thick needle section 532 corresponding to the outer groove 115 in the housing assembly 11, so that the first electrode block 7, the second electrode block 8, the spring and the bent insertion needle 53 are electrically connected. The first electrode block 7 and the second electrode block 8 are combined with the casing assembly 11 in an interference fit mode and a gluing mode to realize assembly of the mounting groove 112.

The compression joint part 5 is connected with the straight pin 51 and the bent pin 53 through the high-temperature lead 52, namely the electrode block II 8 and the electrode block I7 are respectively and electrically connected with the straight pin 51 of the compression joint part 5. The straight pin 51 and the bent pin 53 are overlapped through the high-temperature lead 52, different connection arrangements are realized through the high-temperature lead 52, and therefore sampling output in different arrangements is realized. One group of straight pins 51 in the two groups of straight pins 51 oppositely arranged in the inner embedded part 2 are electrically connected with the second electrode block 8; a set of straight pins 51 are electrically connected to electrode block one 7.

Example two

In the first embodiment, the crimp fitting 5 connects the straight pin 51 and the bent pin 53 through the high-temperature wire 52. The second electrode block 8 and the first electrode block 7 are respectively connected with the straight inserting needle 51 of the pressure joint part 5. The straight pin 51 and the bent pin 53 are overlapped through the high-temperature lead 52, different connection arrangements are realized through the high-temperature lead 52, and therefore sampling output in different arrangements is realized. An inner row of straight pins 51 in two rows of straight pins 51 arranged inside and outside the inner embedded part 2 are electrically connected with the second electrode block 8; the straight pins 51 in the outer row are electrically connected with the first electrode block 7.

Example three:

a manufacturing method of a circular electrode connector with an injection molding framework comprises the following steps:

firstly, positioning and supporting a plurality of compression joint parts 5 through a fixing ring 3, and combining the compression joint parts 5 and a transfer support ring 4 to form an inner joint part 2; the screw 303 is screwed into a threaded hole 302 formed in the fixing ring 3, so that the compression joint member 5 and the fixing ring 3 are limited and combined. Specifically, one end of the compression joint piece 5 is provided with a concave receiving hole 537, and the receiving hole 537 is further provided with a blocking block 533 for blocking the receiving hole 537; the blocking block 533 of the compression joint member 5 is correspondingly embedded in the fixing ring 3.

The assembling step of the crimp fitting 5 includes: the straight insertion pin 51 is lapped with the bent insertion pin 53 through the high-temperature lead 52, and the heat shrinkable tube 54 is wrapped outside the lapping joint of the straight insertion pin 51, the high-temperature lead 52 and the bent insertion pin 53 to form the L-shaped compression joint part 5. And the end of the thick needle section 532 of the curved insertion needle 53 is provided with a blocking block 533, one side end of the thick needle section 532 positioned at the outer side is provided with an inwards concave accommodating hole 537, and the thick needle section 532 is provided with a blocking block 533 for blocking the accommodating hole 537.

Furthermore, the inner embedded part 2 is formed by positioning and supporting twelve pairs of pressure-welding parts 5 and three supporting columns b92 through a fixing ring 3, and combining the twelve pairs of pressure-welding parts 5 and ten supporting columns a91 with a switching supporting ring 4; the screw hole 302 of the fixing ring 3 is screwed in through the screw 303, the fixing ring 3 and the compression joint part 5 are combined in a limiting way, and the blocking block 533 of the embedded part 2 is correspondingly embedded into the T-shaped groove 301.

Step two, the embedded assembly part 2 is placed into an injection mold for injection molding to form an injection molding assembly part 10, and a screw 303 on the injection molding assembly part 10 is screwed out; and turning the injection molding assembly 10 to form the housing assembly 11.

Specifically, after the injection molding assembly 10 is turned, a plurality of mounting grooves 112 corresponding to the receiving holes 537 of the compression assembly 2 are arranged outside the housing assembly 11; the block 533 in the inner fitting 2 is turned and removed to expose the receiving hole 537.

More specifically, the specific step of manufacturing the injection molding part 10 is to place the embedded part 2 into an injection mold for injection molding, so as to realize peek injection molding and form the injection molding part 10; after the embedded part 2 is placed in an injection mold to complete injection molding, the screw 303 in the threaded hole 302 on the fixing ring 3 is screwed out. The injection molding assembly 10 is of a tubular structure, the injection molding assembly 10 and the transfer support ring 4 are coaxially arranged, the inner diameter of the injection molding assembly 10 is smaller than the inner diameter of the transfer support ring 4, a peek body of the injection molding assembly 10 wraps the transfer support ring 4, twelve pairs of bent pins 53 are symmetrically distributed on the circumference of the injection molding assembly 10, the pairs of insertion sections 513 of the twelve pairs of straight pins 51 expose the end surface of the injection molding assembly 10, the twelve pairs of straight pins 51 exposing the end surface of the injection molding assembly 10 are oppositely distributed in an inner layer and an outer layer, and the pairs of insertion sections 513 are distributed at a fixed angle with the adjacent pairs of insertion sections 513. Further, as shown in fig. 4 to 6, the lengths of the opposite insertion sections 513 of the twelve pairs of straight insertion pins 51 exposed out of the end surface of the injection molding part 10 are the same. The smooth sections of ten support posts a91 and three support posts b92 expose the end faces of the injection molded part 10.

Furthermore, when the PEEK injection molding is performed on the inner embedded part 2, the Peek particle material is injected from the tail part of the inner embedded part 2, the injection pressure is axial, and the pressure direction applies pressure to the opposite insertion section 513 of the straight pin 51 from one side of the bent pin 53 of the pressure welding part 5. After PEEK is injected, twelve pairs of straight pins 51, ten support columns a91 and the switching support ring 4 are combined through an injection molding body, and the switching support ring 4 and the injection molding body do not move axially; the supporting column b92 supports the fixing ring 3 without axial movement between the fixing ring 3 and the injection-molded body.

The smooth sections of the end faces of the injection molding assembly 10 exposed by the support columns a91 and b92 on the injection molding assembly 10 are turned and removed, the bent insertion needles 53 arranged in the injection molding assembly 10 are turned, when the injection molding assembly 10 is turned, the blocking blocks 533 in the embedded assembly 2 are turned and removed, the accommodating holes 537 of the thick needle sections 532 are exposed, a plurality of pairs of uniformly distributed mounting grooves 112 are circumferentially distributed and processed outside the injection molding assembly 10, and the mounting grooves 112 comprise outer grooves 115 and inner grooves 116 arranged in the outer grooves 115.

And step three, mounting the contact element in the mounting groove of the shell assembly 11, placing the metal elastic element 6 in the receiving hole 537, and electrically connecting the contact element with the compression joint assembly 5 in the inner assembly 2 through the elastic element 6.

Specifically, the metal elastic member 6 is placed in the receiving hole 537; the second electrode block 8 in the contact piece is arranged in the outer groove 115 and is butted with the receiving hole 537 in the outer groove 115; the electrode block I7 in the contact piece is arranged in the inner groove 116 and is butted with the receiving hole 537 in the inner groove 116; the second electrode block 8 is not in contact with the first electrode block 7; the thick needle section 532 in the compression joint element 5 is correspondingly penetrated through the outer groove 115 and the inner groove 116 and then is butted with the electrode block II 8 correspondingly arranged in the outer groove 115 and the electrode block I7 correspondingly arranged in the inner groove 116 through one end of the implanted metal elastic element 6.

By injecting the embedded part 2 into the injection-molded part 10 through the peek, the inosculating sealing performance of the electrode connector is effectively improved. The electrical connection is achieved by the abutment of the contacts uniformly arranged in the mounting grooves 112 outside the housing assembly 11 of the electrode connector 1 with the inner assembly 2 through the receiving holes 537 and the springs 6. The part of the straight insertion pin 51 exposed out of the shell assembly 11 is connected with the sensor, and signals are collected through the first electrode block 7 and the second electrode block 8. The contact piece adopts electrode block two 8 and electrode block one 7 to set up respectively in outer tank 115 and inside groove 116, realizes the isolation of electrode block two 8 and electrode block one 7, utilizes twelve electrode block two 8 and twelve electrode block one 7 to carry out the collection of signal respectively, has promoted the performance that the contactor gathered to signal classification.

The above embodiments are specific supports for the idea of the present invention, and the protection scope of the present invention is not limited thereby, and any equivalent changes or equivalent modifications made on the basis of the technical scheme according to the technical idea of the present invention still belong to the protection scope of the technical scheme of the present invention.

Claims

1. The utility model provides a circular electrode connector of skeleton of moulding plastics which characterized in that: the contact piece is electrically connected with the embedded piece, one end part of the embedded piece is embedded into the shell piece, the other end part of the embedded piece extends out of the shell piece, and the contact pieces are circumferentially distributed on a circumferential curved surface of the shell piece; the part of the embedded assembly part embedded into the shell assembly part is electrically connected with a contact piece arranged on the shell assembly part;

the shell assembly part is of a tubular structure, a plurality of uniformly distributed installation grooves are machined in the circumferential curved surface of the shell assembly part, and the contact elements are arranged in the installation grooves; the mounting groove comprises an outer groove and an inner groove; the contact piece comprises a second electrode block arranged in the outer groove and a first electrode block arranged in the inner groove.

2. The injection molded backbone circular electrode connector of claim 1, wherein: the embedded part comprises a plurality of compression joint parts; the compression joint part comprises a straight contact pin, a bent contact pin and a high-temperature lead for connecting the straight contact pin and the bent contact pin; and the outer parts of the joints among the straight contact pins, the high-temperature lead and the bent contact pins are wrapped with insulating layers.

3. The injection molded backbone circular electrode connector of claim 2, wherein: the inner embedded part also comprises a switching support ring and a fixing ring; the adapter support ring and the fixing ring are provided with a plurality of compression joint pieces, support columns a and support columns b.

4. The injection molded backbone circular electrode connector of claim 3, wherein: the straight insertion needle comprises a first crimping section, a first periodic sealing groove section and a second insertion section which are sequentially arranged; the curved insertion needle comprises a thin needle section and a thick needle section which are arranged in sequence; the thick needle section is provided with an accommodating hole; the thin needle section comprises a crimping section II, a periodic sealing groove section II and a bending section which are sequentially arranged, and the bending section is connected with the thick needle section; the first crimping section is connected with the second crimping section through a high-temperature lead.

5. The injection molded backbone circular electrode connector of claim 4, wherein: the containing hole is internally embedded with a metal elastic piece, and the compression joint piece is electrically connected with the contact piece through the containing hole and the metal elastic piece.

6. The injection molded backbone circular electrode connector of claim 3, wherein: the plurality of compression joint parts are positioned and arranged through the fixing ring; the fixing ring is provided with a plurality of T-shaped grooves for inserting the compression joint piece, and the T-shaped grooves are circumferentially distributed on the end face of the fixing ring; and a plurality of threaded holes are formed in the fixing ring, the threaded holes are distributed on the circumferential curved surface of the fixing ring, and the T-shaped groove is communicated with the corresponding threaded holes.

7. The injection molded backbone circular electrode connector of claim 3, wherein: the switching support ring is provided with a ring groove in the middle of the outer wall, the two ends of the switching support ring are respectively an a end surface and a b end surface, the a end surface is provided with a plurality of first through grooves for arranging the straight contact pins, the b end surface is provided with a plurality of second through grooves for correspondingly arranging the bent contact pins, and the plurality of second through grooves are uniformly distributed in the b end surface of the switching support ring in a circumferential manner; the end face a of the switching support ring is also provided with a plurality of slotted holes for arranging the support column a.

8. The injection molded backbone circular electrode connector of claim 2, wherein: the second electrode block is not contacted with the first electrode block; the crimping assembly in the housing assembly is electrically connected to the contact member by a metal spring.

9. The method for manufacturing an injection molding framework circular electrode connector according to any one of the claims 1 to 8, wherein the method comprises the following steps: comprises the following steps of (a) carrying out,

10. The method of manufacturing an injection molded skeletal circular electrode connector as claimed in claim 9, wherein:

one end of the compression joint piece is provided with an inwards concave receiving hole, and the receiving hole is also provided with a blocking block for blocking the receiving hole; correspondingly embedding the plugging blocks of the compression joint piece into the fixed ring;

a plurality of mounting grooves corresponding to the receiving holes of the compression joint part are arranged outside the shell joint part; turning and removing the plugging block in the embedded part to expose the accommodating hole;

the metal elastic piece is placed into the accommodating hole, the contact piece is installed into the installation groove, the contact piece is in butt joint with the compression joint piece, and the compression joint piece is electrically connected with the contact piece through the metal elastic piece.