CN115579661A - Super-long contact element and super-long jack thereof - Google Patents

Abstract

The invention relates to an ultra-long contact element and an ultra-long jack thereof, wherein the ultra-long contact element comprises an ultra-long jack, a short contact pin in plug fit with one end of the ultra-long jack and an ultra-long contact pin in plug fit with the other end of the ultra-long jack; overlength type jack includes the intermediate lever, installs in the first jack part of intermediate lever one end and installs in the second jack part of the intermediate lever other end, and the intermediate lever is the cavity shaft-like and communicates with second jack part, and first jack part includes the first jack body of grafting complex with short contact pin, and second jack part is including being used for with overlength type contact pin grafting complex second jack body, after overlength type contact pin can pass second jack body with the cooperation of pegging graft of intermediate lever. The invention adopts the over-long jack and the over-long pin, ensures that the over-long jack can still be simultaneously plugged, contacted and conducted with the short pin and the over-long pin at two ends after moving for a longer distance along the plugging direction, and can effectively increase the plugging length of the header connector.

Description

Overlength type contact and overlength type jack thereof

Technical Field

The invention belongs to the technical field of contact elements, and particularly relates to an ultra-long contact element and an ultra-long jack thereof.

Background

The inserting distance that the jack of the existing connector can accommodate the adaptive pin to move in the jack is generally below 30mm, the inserting and combining are short, and the condition that the pin and the jack can move more distances to be in place cannot be met. If directly use the wire to connect, then the inside arranging that will lead to the wire when the core number is more of connector is comparatively mixed and disorderly, is difficult to avoid intertwining's the condition to take place, and supplies the space that the wire took in the connector also not enough, and plug in-process wire is easily worn and torn by buckling, and it is unstable to see this kind of connected form, causes connector performance degradation or trouble easily, is unfavorable for the miniaturized design of connector size.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides an ultra-long contact element and an ultra-long jack thereof.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the present invention, an ultra-long contact is provided, which includes: the wall-through socket comprises an overlong jack arranged in the wall-through socket, a short contact pin arranged in the first plug and in plug fit with one end of the overlong jack, and an overlong contact pin arranged in the second plug and in plug fit with the other end of the overlong jack; the overlength type jack includes the intermediate lever, installs in the first jack part of intermediate lever one end and installs in the second jack part of the intermediate lever other end, the intermediate lever be cavity shaft-like and with the coaxial intercommunication of second jack part, first jack part include with the first jack body of short contact pin grafting complex, second jack part including be used for with overlength type contact pin grafting complex second jack body, the overlength type contact pin can pass behind the second jack body with the cooperation of intermediate lever grafting.

Furthermore, the front end of the first jack body is provided with a first elastic jack matched with the short contact pin; the front end of the second jack body is provided with a second elastic jack matched with the overlength type contact pin.

Furthermore, the rear end of the first jack body is divided into at least two first forced-assembly elastic sheets which are uniformly distributed in the circumferential direction by the axial split groove, and the first forced-assembly elastic sheets surround a first mounting hole which is in forced fit with the corresponding end part of the middle rod; the rear end of the second jack body is divided into at least two second forced-loading elastic sheets which are uniformly distributed in the circumferential direction by the axial split groove, and the second forced-loading elastic sheets surround a second mounting hole which is in forced fit with the corresponding end part of the intermediate rod.

Furthermore, the first jack part further comprises a first sheath sleeved on the outer side of the front end of the first jack body, the second jack part comprises a second sheath sleeved on the outer side of the front end of the second jack body, the first sheath circumferentially wraps the first elastic jack, and the second sheath circumferentially wraps the second elastic jack.

Furthermore, the first sheath and the second sheath are fixed outside the corresponding jack bodies in a point-type crimping mode.

Further, the rear ends of the first forced installation elastic sheet and the second forced installation elastic sheet are respectively provided with a first guide angle matched with the corresponding end part of the middle rod, and the outer edges of the two ends of the middle rod are respectively provided with a second guide angle.

Furthermore, the overlength type jack can be for overlength type contact pin endwise slip, and can realize inserting the switching of closing the state or the separation state with short contact pin during overlength type jack endwise slip, and insert under the closing state overlength type contact pin can maintain to insert with the overlength type contact pin and close the contact and switch on.

Furthermore, all be equipped with the location step on the outer peripheral face of first jack body and second jack body, be equipped with the socket insulator in the wall socket, the location step is used for socket insulator axial spacing cooperation.

The invention also provides an ultra-long jack which comprises a middle rod, a first jack part arranged at one end of the middle rod and a second jack part arranged at the other end of the middle rod, wherein the middle rod is in a hollow rod shape and is communicated with the second jack part, the first jack part comprises a first jack body in splicing fit with the short contact pin, the second jack part comprises a second jack body in splicing fit with the ultra-long contact pin, and the ultra-long contact pin matched with the ultra-long jack can penetrate through the second jack body and then is in splicing fit with the middle rod.

Furthermore, the front end of the first jack body is provided with a first elastic jack matched with the matched short contact pin; the front end of the second jack body is provided with a second elastic jack matched with the adaptive overlong contact pin.

Furthermore, the rear end of the first jack body is divided into at least two first forced-assembly elastic sheets which are uniformly distributed in the circumferential direction by the axial split groove, and the first forced-assembly elastic sheets surround a first mounting hole which is in forced fit with the corresponding end part of the middle rod; the rear end of the second jack body is divided into at least two second forced-loading elastic sheets which are uniformly distributed in the circumferential direction by the axial split groove, and the second forced-loading elastic sheets surround a second mounting hole which is in forced fit with the corresponding end part of the intermediate rod.

Furthermore, the first jack part further comprises a first sheath which is sleeved on the outer side of the front end of the first jack body, the second jack part comprises a second sheath which is sleeved on the outer side of the front end of the second jack body, the first sheath circumferentially wraps the first elastic jack, and the second sheath circumferentially wraps the second elastic jack.

Furthermore, the first sheath and the second sheath are fixed outside the corresponding jack body in a point type crimping mode.

Further, the rear ends of the first forced installation elastic sheet and the second forced installation elastic sheet are respectively provided with a first guide angle matched with the corresponding end part of the middle rod, and the outer edges of the two ends of the middle rod are respectively provided with a second guide angle.

Furthermore, all be equipped with the location step on the outer peripheral face of first jack body and second jack body, be equipped with socket insulator in the wall socket, the location step is used for socket insulator axial spacing cooperation.

By means of the technical scheme, the ultra-long jack and the ultra-long pin are designed, so that the ultra-long jack can be guaranteed to be simultaneously plugged, contacted and conducted with the short pins and the ultra-long pin at two ends after moving for a long distance along the plugging direction in actual use, and good plugging sealing performance is maintained. Because the common processing technology can not meet the production and manufacture of the super-long contact element, the length of the super-long jack is ensured by adopting a three-section connection mode, and the insertion length of the head seat is greatly increased by the design of the three-section super-long jack.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic external view of a first plug in an embodiment of the present invention.

Fig. 2 is a side view of a first plug in an embodiment of the invention.

Fig. 3 is a schematic external view of a wall socket according to an embodiment of the present invention.

Fig. 4 is a side view of a wall socket in an embodiment of the invention.

Fig. 5 is a schematic external view of a second plug in an embodiment of the invention.

Fig. 6 is a side view of a second plug in an embodiment of the invention.

Fig. 7 is an external view of the first plug, the wall penetration socket and the second plug in an initial state.

Fig. 8 is an external view of the first plug, the wall bushing and the second plug in an operating state.

Fig. 9 is a schematic cross-sectional view of the first plug, the wall socket and the second plug in their initial states.

Fig. 10 is a schematic cross-sectional view of the first plug, the wall socket and the second plug in an operating state.

Fig. 11 is a schematic structural diagram of an ultra-long jack.

Fig. 12 is a schematic diagram of a super-long pin.

Fig. 13 is a schematic diagram of a short pin configuration.

Fig. 14 is a schematic view of the forced fit of the first receptacle part with the intermediate lever.

Detailed Description

The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1 to 14, an embodiment of a sliding multi-core direct-plug power connector assembly includes a first plug 1, a wall socket 2 and a second plug 3, where the first plug 1 is used for being plugged with one end of the wall socket 2, the second plug 3 is used for being plugged with the other end of the wall socket 2, and conduction between the first plug and the second plug can be achieved through the wall socket; in this embodiment, the end of the first plug/the end of the second plug, which is plugged into the corresponding end of the wall socket, are used as the front end of the plug. The first plug 1 includes a first plug housing 11, a first plug insulator 12 disposed in the first plug housing, and a short pin 13 disposed in the first plug insulator. The wall-penetrating socket 2 comprises a socket housing 21, a socket insulator 22 arranged in the socket housing, and an ultra-long jack 23 arranged in the socket insulator. The second plug 3 includes a second plug housing 31, a second plug insulator 32 provided in the second plug housing, and an ultra-long type pin 33 provided in the second plug insulator. The short pin 13 is used for being in plug fit with one end of the super-long jack 23, and the other end of the super-long jack 23 is used for being in plug fit with the super-long pin 33. The socket shell and the second plug shell are in guiding sliding fit.

The overlength type jack 23 includes the intermediate lever 231, locates the first jack part of intermediate lever one end and locates the second jack part of the intermediate lever other end, and intermediate lever 231 is cavity loop bar structure, and intermediate lever and second jack part intercommunication are so that supply the overlength type contact pin to insert. The first jack component comprises a first jack body 232 and a first sheath 233, the front end of the first jack body 232 is provided with a first elastic jack 2321 which is in plug-in fit with the short contact pin 13, and the first sheath 233 is sleeved at the front end of the first jack body 232 and circumferentially wraps the first elastic jack and is used for providing contact holding force with the short contact pin in a plug-in state for the first elastic jack and protecting the first elastic jack. The rear end of the first jack body 232 is divided into at least two first strong loading pieces 2322 which are uniformly distributed in the circumferential direction by the axial split groove 234, the at least two strong loading pieces 2322 surround a first mounting hole 235 which is used for being in strong assembly fit with the corresponding end of the middle rod, and the first mounting hole can realize the strong mounting and positioning of the first jack component; the axial split 234 makes the installation stronger and more secure, avoiding stress concentration. The second jack part comprises a second jack body 236 and a second sheath 237, the front end of the second jack body is provided with a second elastic jack 2361 which is in splicing fit with the over-long type contact pin, the second sheath 237 is sleeved at the front end of the second jack body and circumferentially wraps the second elastic jack, the rear end of the second jack body is also divided into at least two second strong-loading elastic sheets 2362 which are circumferentially and uniformly distributed by an axial splitting groove 234, and the second strong-loading elastic sheets surround a second mounting hole 238 which is in strong assembly fit with the intermediate rod. Because the first mounting hole and the second mounting hole are elastic positioning holes, the quick assembly of the corresponding jack component can be realized. When the overlong jack is assembled, a special tool is used, the front-end inserting holes of the first jack part and the second jack part are not allowed to be damaged, and plating layers of parts are not allowed to be damaged, so that the performance of the jack is not influenced. After the assembly is finished, the jack components cannot move along the central axis of the middle rod; after assembly, the matched long contact pin is inserted from the second jack part to the bottom of the hole of the over-long jack to detect, and the detection is smooth and free of unsmooth feeling. The first elastic jack and the second elastic jack are socket hole structures which are formed by a plurality of contact elastic sheets separated by axially extending grooves and are circumferentially distributed and enclosed. The invention greatly increases the insertion length between the head bases by the design of the three-section type super-long jack.

Referring to fig. 14, preferably, in order to facilitate the forcible installation of the first and second jack members, the rear ends of the first and second forcible installation resilient pieces are respectively provided with a first guide angle 239 engaged with the end of the intermediate lever, and the outer edges of the two ends of the intermediate lever are respectively provided with a second guide angle 2310. In addition, the outer peripheral surfaces of the two ends of the middle rod 231 are respectively provided with a limiting step 2311, the limiting steps are in axial stop fit with the rear ends of the corresponding jack parts, the axial installation positions of the corresponding jack parts can be limited, meanwhile, the height of each limiting step is equal to the thickness of the corresponding sheath, the increase of the radial size of the over-long jack is avoided, the axial consistency of the outer peripheral surfaces of the over-long jacks is ensured, and the over-long jacks and the socket insulator are favorably positioned in a matched mode. In this embodiment, the first sheath and the second sheath are fixed to the corresponding jack bodies in a point-type crimping manner, at this time, a pressure applying groove is formed in an outer peripheral surface of a front end of each jack body, and a pressure applying portion formed on the first sheath/the second sheath after crimping is recessed into the corresponding pressure applying groove, so as to achieve crimping and fixing of each sheath.

Referring to fig. 12, the front end of the super-long pin 33 is a pin portion 331, and the pin portion, the second elastic insertion hole and the intermediate rod are in a position relationship of insertion contact. Preferably, in order to improve contact stability between the needle holes, the front end of the needle portion is expanded in diameter to form a large diameter section 3311 having an outer diameter larger than that of the portion of the needle portion 331 at the rear end thereof. The rear end of the pin part 331 is connected with an ultra-long pin fixing part 332, and the ultra-long pin fixing part 332 and the second plug insulator are relatively positioned by a step; the fixing part of the short contact pin is matched with the step of the first plug insulator to realize the positioning of the contact piece; the rear ends of the short contact pin and the ultra-long contact pin are wiring parts connected with corresponding wires; in addition, the outer peripheral surfaces of the two ends of the super-long jack are respectively provided with a positioning step 2312, the positioning steps are specifically arranged on each jack body, and the positioning steps 2312 are matched with corresponding steps on the socket insulator to realize the positioning of the super-long jack.

Further, a limiting end surface 311 is provided in the second plug housing 31, when the wall socket and the second plug are inserted in place, the socket housing abuts against the limiting end surface, and at this time, the ultra-long type pin is inserted into the deepest part of the ultra-long type jack (see fig. 9).

In this embodiment, the first plug is installed on the device a through 8 floating shaft sleeves, and the floating of +/-1 mm in the directions of the X and Y of the radial plane can be realized. The wall socket is mounted on the device B and the second plug is mounted on the device C. When the device does not work, the device A and the device B are separated by the cover plate, and when the device works, the cover plate is opened. The wall-through socket can be radially fixed on the mounting panel of the equipment B through the mounting nut sleeved on the outer side of the wall-through socket, and after the wall-through socket and the second plug are inserted in place, the second plug is also radially fixed on the mounting panel of the equipment C through the corresponding mounting nut.

As shown in fig. 7 and 10, in an initial state, the system is not powered on, the wall-through socket and the second plug are inserted together, the front end of the socket shell abuts against the limiting end face, the socket shell and the second plug shell are inserted and sealed through the sealing ring 34, and the wall-through socket and the first plug are in a separated state; taking the wall socket capable of axially sliding 100mm ± 2mm relative to the second plug as an example, the wall socket is spaced from the first plug by 75 ± 2mm, that is, H1=75 ± 2mm.

When the system starts to work, the wall socket moves towards the side direction of the first plug under the pushing of the hydraulic power of the equipment B, the wall socket slides by 100 +/-2 mm and then is inserted into the first plug, the wall socket and the first plug are in an insertion state, at the moment, as shown in figures 8 and 10, the wall socket is recessed into the first plug shell by 25 +/-2 mm, namely, the insertion depth H2=25 +/-2 mm, and the short contact pin is inserted into the first jack part at one end of the super-long jack. Meanwhile, the wall-through socket and the second plug still keep connected, namely the second jack part and the over-long type contact pin still keep inserted contact and conduction, and the socket shell and the second plug shell still realize shell sealing through the sealing ring 34. And then the system starts to supply power from the side where the second plug is located to the side where the first plug is located, so that the electrical connection of the whole system is realized.

When the power supply system is shut down, the power supply system is powered off, the wall-through socket moves towards the direction of the second plug under the pushing of the hydraulic power of the equipment B, namely, the wall-through socket retracts by 100 +/-2 mm to return to the initial position, the stroke is finished, and the system is reset.

In this embodiment, as shown in fig. 2, 4 and 6, 32 short pins are disposed in the first plug, 32 super-long type jacks are disposed in the wall socket, and 32 super-long type pins are disposed in the second plug, which form a 32-core direct-plug power connector assembly; in other embodiments, however, there is no limit to the number of contacts within each connector. In addition, the first plug, the through-wall socket and the second plug are all made of mutually adaptive circular connector products, and in other embodiments, the first plug, the through-wall socket and the second plug can also be rectangular connectors or other types of connectors capable of realizing axial direct plugging.

In the present embodiment, only the axial sliding stroke between the wall-through socket and the second plug is 100mm (error is ± 2 mm); however, in other embodiments, the stroke of the relative axial sliding between the two may be adaptively changed and designed, and the invention is not limited thereto.

In this embodiment, the inner hole of the second jack body is arranged to penetrate axially; the front end and the rear end of the first jack body are arranged in a separated mode, and the sealing performance of the wall socket and the sealing performance of the second plug are maintained.

In this embodiment, first sheath and second sheath are connected with corresponding jack body through the point mode of pressing, in other embodiments, also can adopt welding, threaded connection, buckle connection etc..

It is worth noting that the length of the short pins is shorter compared to the extra long jacks; compared with corresponding contact elements in the connector with the same size or similar size in the prior art, the overlength type jack and the overlength type contact pin are longer, so that the wall-through socket and the second plug can axially slide for a long distance relatively and contact conduction with the second plug can still be ensured when the wall-through socket and the first plug are plugged and unplugged; the invention is not limited to the specific length of each contact.

Embodiment of the super-long contact:

referring to fig. 9 to 14, the ultra-long contact includes a short pin, an ultra-long jack and an ultra-long pin, the ultra-long jack is installed in the wall socket, the short pin is installed in a first plug inserted into one end of the wall socket, the ultra-long pin is installed in a second plug inserted into one end of the wall socket, the second plug and the wall socket are in axial sliding contact fit, when the wall socket and the first plug are in a separated state, the ultra-long jack and the ultra-long pin are in insertion and conduction, when the wall socket and the first plug are in insertion and conduction, the ultra-long jack and the short pin are in insertion and conduction, and the ultra-long jack in the wall socket is still in insertion and conduction with the ultra-long pin in the second plug, that is, the front end of the ultra-long pin and the second jack are in elastic insertion and contact conduction. The structure and the working principle of the short pin, the ultra-long jack and the ultra-long pin are the same as those of the short pin, the ultra-long jack and the ultra-long pin in the embodiment of the sliding multi-core direct-plug power connector assembly, and the description is omitted here.

The foregoing is only a preferred embodiment of the present invention and is not detailed in the prior art; any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention will still fall within the scope of the technical solution of the present invention by those skilled in the art without departing from the technical solution of the present invention.

Claims (9)

1. An ultra-long contact, comprising: the wall-through socket comprises an overlong jack arranged in the wall-through socket, a short contact pin arranged in the first plug and in plug fit with one end of the overlong jack, and an overlong contact pin arranged in the second plug and in plug fit with the other end of the overlong jack; the overlength type jack includes the intermediate lever, installs in the first jack part of intermediate lever one end and installs in the second jack part of the intermediate lever other end, and the intermediate lever is the cavity shaft-like and communicates with second jack part, and first jack part includes the first jack body of grafting complex with short contact pin, and second jack part is including being used for grafting complex second jack body with the overlength type contact pin, behind the overlength type contact pin ability pass the second jack body with the intermediate lever cooperation of pegging graft.

2. The sliding multi-core direct-plug power connector assembly of claim 1, wherein: the front end of the first jack body is provided with a first elastic jack matched with the short contact pin; the front end of the second jack body is provided with a second elastic jack matched with the overlength type contact pin.

3. The sliding multi-core direct-plug power connector assembly of claim 1, wherein: the rear end of the first jack body is divided into at least two first forced-loading elastic sheets which are uniformly distributed in the circumferential direction by an axial split groove, and the first forced-loading elastic sheets surround a first mounting hole which is in forced fit with the corresponding end part of the middle rod; the rear end of the second jack body is divided into at least two second forced-assembly elastic sheets which are uniformly distributed in the circumferential direction by the axial split groove, and the second forced-assembly elastic sheets surround a second mounting hole which is in forced fit with the end part corresponding to the intermediate rod.

4. The sliding multi-core in-line power connector assembly of claim 2, wherein: the first jack part further comprises a first sheath which is sleeved on the outer side of the front end of the first jack body, the second jack part comprises a second sheath which is sleeved on the outer side of the front end of the second jack body, the first sheath circumferentially wraps the first elastic jack, and the second sheath circumferentially wraps the second elastic jack.

5. The sliding multi-core direct-plug power connector assembly of claim 4, wherein: the first sheath and the second sheath are fixed outside the corresponding jack bodies in a point-type crimping mode.

6. The sliding multi-core direct-plug power connector assembly of claim 3, wherein: the rear end of the first forced installation elastic sheet and the rear end of the second forced installation elastic sheet are respectively provided with a first guide angle matched with the corresponding end part of the middle rod, and the outer edges of the two ends of the middle rod are respectively provided with a second guide angle.

7. The sliding multi-core direct-plug power connector assembly of claim 3, wherein: the overlength type jack can be for overlength type contact pin endwise slip, and can realize inserting the switching of closing state or separating state with short contact pin during overlength type jack endwise slip, and insert under the closing state overlength type contact pin can maintain with overlength type contact pin to insert to close the contact and switch on.

8. The sliding multi-core in-line power connector assembly of claim 1, wherein: all be equipped with the location step on the outer peripheral face of first jack body and second jack body, be equipped with the socket insulator in the wall socket, the location step is used for socket insulator axial spacing cooperation.

9. Super long-type jack, its characterized in that: the super long jack is the super long jack of any one of claims 1-8.

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