An ultra-long contact and an ultra-long jack thereof

Abstract

The application relates to an ultra-long contact and an ultra-long jack thereof, the ultra-long contact comprising an ultra-long jack, a short pin inserted into one end of the ultra-long jack and an ultra-long pin inserted into the other end of the ultra-long jack; the ultra-long jack comprises a middle rod, a first jack component installed at one end of the middle rod and a second jack component installed at the other end of the middle rod, the middle rod is in a hollow rod shape and is communicated with the second jack component, the first jack component comprises a first jack body for being inserted into the short pin, the second jack component comprises a second jack body for being inserted into the ultra-long pin, and the ultra-long pin can be inserted into the second jack body and then inserted into the middle rod. The ultra-long jack and the ultra-long pin are adopted, the ultra-long jack can be in contact with the short pin and the ultra-long pin at the two ends at the same time after moving a long distance along the insertion and extraction direction, and the insertion length of the header connector can be effectively increased.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of contact elements, and particularly relates to an ultralong contact element and an ultralong jack thereof. BACKGROUND

[0002] The insertion distance of the existing connector jack capable of accommodating the movement of the matched plug pin therein is generally 30mm or less, and the insertion forms a short distance, which cannot meet the situation that the plug pin and the jack need to move more distance to be in place. If the wires are directly used for connection, the arrangement of the wires will be more disorderly when the number of cores is more, and it is difficult to avoid the mutual entanglement, and the space for the wires in the connector is not enough, and the wires are easy to be bent and damaged in the plugging process. It can be seen that this connection form is not stable, which can easily cause the performance degradation or failure of the connector, and is not conducive to the miniaturization design of the connector. SUMMARY

[0003] In order to solve the problems existing in the prior art, the present application provides an ultralong contact element and an ultralong jack thereof.

[0004] The purpose of the present application and the technical problems thereof are realized by adopting the following technical scheme. According to the present application, an ultralong contact element is provided, which comprises: an ultralong jack arranged in a wall plug, a short plug pin arranged in a first plug and matched with one end of the ultralong jack, and an ultralong plug pin arranged in a second plug and matched with the other end of the ultralong jack; the ultralong jack comprises a middle rod, a first jack component arranged at one end of the middle rod, and a second jack component arranged at the other end of the middle rod, the middle rod is in a hollow rod shape and coaxially communicated with the second jack component, the first jack component comprises a first jack body matched with the short plug pin, the second jack component comprises a second jack body matched with the ultralong plug pin, and the ultralong plug pin can pass through the second jack body and be matched with the middle rod.

[0005] Further, the front end of the first jack body has a first elastic jack matched with the short plug pin, and the front end of the second jack body has a second elastic jack matched with the ultralong plug pin.

[0006] Further, the rear end of the first jack body is divided into at least two circumferentially distributed first strong mounting elastic pieces by an axial split groove, and the first strong mounting elastic pieces surround a first mounting hole matched with the corresponding end of the middle rod; the rear end of the second jack body is divided into at least two circumferentially distributed second strong mounting elastic pieces by an axial split groove, and the second strong mounting elastic pieces surround a second mounting hole matched with the corresponding end of the middle rod.

[0007] Further, the first jack component further comprises a first sheath sleeved outside the front end of the first jack body, and the second jack component comprises a second sheath sleeved outside 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.

[0008] Further, the first sheath and the second sheath are fixed to the corresponding jack bodies by means of point-type crimping.

[0009] Further, the rear end of the first strong mounting spring and the rear end of the second strong mounting spring are provided with a first guide angle matched with the corresponding end of the middle rod, and the outer edges of the two ends of the middle rod are provided with a second guide angle.

[0010] Further, the super-long jack can axially slide relative to the super-long plug, and the super-long jack can switch between the plugged state and the separated state when axially sliding, and the super-long plug can maintain plugged contact with the super-long plug in the plugged state.

[0011] Further, the outer circumferential surface of the first jack body and the outer circumferential surface of the second jack body are provided with positioning steps, and the wall plug is provided with a plug insulator, and the positioning steps are used for axially limiting the plug insulator.

[0012] The application further provides a super-long jack, comprising a middle rod, a first jack component mounted at one end of the middle rod, and a second jack component mounted at the other end of the middle rod, the middle rod is in a hollow rod shape and is in communication with the second jack component, the first jack component comprises a first jack body for plugging and cooperating with a short plug, and the second jack component comprises a second jack body for plugging and cooperating with a super-long plug, and the super-long plug matched with the super-long jack can pass through the second jack body and then plug and cooperate with the middle rod.

[0013] Further, the front end of the first jack body is provided with a first elastic jack matched with a corresponding short plug, and the front end of the second jack body is provided with a second elastic jack matched with a corresponding super-long plug.

[0014] Further, the rear end of the first jack body is divided into at least two circumferentially distributed first strong mounting springs by an axial split groove, and the first strong mounting springs enclose a first mounting hole for strongly cooperating with a corresponding end of the middle rod, and the rear end of the second jack body is divided into at least two circumferentially distributed second strong mounting springs by an axial split groove, and the second strong mounting springs enclose a second mounting hole for strongly cooperating with a corresponding end of the middle rod.

[0015] Further, the first jack component further comprises a first sheath sleeved outside the front end of the first jack body, and the second jack component comprises a second sheath sleeved outside 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.

[0016] Further, the first sheath and the second sheath are fixed to the corresponding jack body by means of point crimping.

[0017] Further, the rear end of the first and second reinforcing spring is provided with a first guide angle matched with the corresponding end of the intermediate rod, and the outer edge of the two ends of the intermediate rod is provided with a second guide angle.

[0018] Further, the outer circumferential surface of the first and second jack body is provided with a positioning step, and the wall plug is provided with a jack insulator, and the positioning step is used for axial limiting cooperation of the jack insulator.

[0019] By the above technical scheme, the super-long jack and the super-long pin are designed, which can ensure that the super-long jack is still in contact with the short pins at both ends and the super-long pin after moving a long distance along the plugging direction, and maintains good plugging sealing performance. Because the ordinary processing technology cannot meet the production and manufacturing of the super-long contact, the three-section connection mode is adopted to ensure the length of the super-long jack, and the plugging length of the head seat is greatly increased through the design of the three-section super-long jack.

[0020] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, and can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the external appearance schematic view of the first plug in the embodiment of the present application.

[0022] Figure 2 is the side view schematic view of the first plug in the embodiment of the present application.

[0023] Figure 3 is the external appearance schematic view of the wall plug in the embodiment of the present application.

[0024] Figure 4 is the side view schematic view of the wall plug in the embodiment of the present application.

[0025] Figure 5 is the external appearance schematic view of the second plug in the embodiment of the present application.

[0026] Figure 6 is the side view schematic view of the second plug in the embodiment of the present application.

[0027] Figure 7 is the appearance schematic view of the first plug, the wall plug and the second plug in the initial state.

[0028] Figure 8 is the appearance schematic diagram when the first plug, the wall plug and the second plug are in the working state.

[0029] Figure 9 is the cross-sectional structure schematic diagram when the first plug, the wall plug and the second plug are in the initial state.

[0030] Figure 10 is the cross-sectional structure schematic diagram when the first plug, the wall plug and the second plug are in the working state.

[0031] Figure 11 is the structure schematic diagram of the super-long type jack.

[0032] Figure 12 is the structure schematic diagram of the super-long type pin.

[0033] Figure 13 is the structure schematic diagram of the short pin.

[0034] Figure 14 is the strong assembly schematic diagram of the first jack component and the intermediate rod. DETAILED DESCRIPTION

[0035] The technical solutions of the present application are further described in detail below in combination with the drawings and the preferred embodiments.

[0036] As Figures 1 to 14 , an embodiment of a sliding type multi-core straight plug-in and pull-out power connector assembly includes a first plug 1, a wall plug 2 and a second plug 3, the first plug 1 is used for plugging with one end of the wall plug 2, the second plug 3 is used for plugging with the other end of the wall plug 2, and the conduction between the first plug and the second plug can be realized through the wall plug; in this embodiment, the end of the first plug / second plug which is plugged with the corresponding end of the wall plug is regarded as the front end of each plug. The first plug 1 includes a first plug shell 11, a first plug insulator 12 arranged in the first plug shell and a short pin 13 arranged in the first plug insulator. The wall plug 2 includes a plug shell 21, a plug insulator 22 arranged in the plug shell and a super-long type jack 23 arranged in the plug insulator. The second plug 3 includes a second plug shell 31, a second plug insulator 32 arranged in the second plug shell and a super-long type pin 33 arranged in the second plug insulator. The short pin 13 is used for plugging with one end of the super-long type jack 23, and the other end of the super-long type jack 23 is used for plugging with the super-long type pin 33. The plug shell and the second plug shell are in guided sliding fit.

[0037] The super-long jack 23 comprises a middle rod 231, a first jack component arranged at one end of the middle rod, and a second jack component arranged at the other end of the middle rod. The middle rod 231 is in a hollow sleeve structure, and the middle rod is communicated with the second jack component to facilitate the insertion of the super-long pin. 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 matched with the short pin 13. The first sheath 233 is sleeved on the front end of the first jack body 232 and circumferentially wraps the first elastic jack, so as to provide the contact holding force of the first elastic jack with the short pin in the insertion state and protect the first elastic jack. The rear end of the first jack body 232 is divided into at least two circumferentially distributed first strong mounting springs 2322 by an axial split slot 234. The at least two strong mounting springs 2322 surround a first mounting hole 235 which is used for the strong mounting cooperation with the corresponding end of the middle rod, so that the strong mounting positioning of the first jack component can be realized. The axial split slot 234 makes the strong mounting more safe and reliable, and avoids stress concentration. The second jack component 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 matched with the super-long pin. The second sheath 237 is sleeved on 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 circumferentially distributed second strong mounting springs 2362 by the axial split slot 234. The second strong mounting springs surround a second mounting hole 238 which is used for the strong mounting cooperation with the middle rod. Since the first and second mounting holes are elastic positioning holes, the corresponding jack components can be quickly assembled. The special tool should be used during the assembly of the super-long jack, the front end insertion hole of the first and second jack components should not be damaged, and the plating layer of each part should not be damaged, so as to avoid affecting the performance of the jack. After the assembly is completed, it is ensured that each jack component cannot move along the central axis of the middle rod. After the assembly, the long pin is inserted from the second jack component to the bottom of the hole of the super-long jack, and it should be smooth without any feeling of resistance. The first and second elastic jacks are both inserted hole structures which are divided into a plurality of contact springs by the axial split slot and surrounded by the circumferential distribution. Through the design of the three-section super-long jack, the insertion length between the head seats is greatly increased.

[0038] In combination Figure 14, as preferred, in order to facilitate the forced installation of the first and second jack components, a first guide angle 239 is arranged at the rear end of the first and second forced installation spring, and the two ends of the intermediate rod are provided with a second guide angle 2310. In addition, the outer circumferential surface of the two ends of the intermediate rod 231 is provided with a limiting step 2311, which is in axial stop cooperation with the rear end of the corresponding jack component, so as to limit the axial installation position of the corresponding jack component. At the same time, the height of the limiting step is equivalent to the thickness of the corresponding sheath, so as to avoid the increase of the radial size of the super-long jack, ensure the consistency of the outer circumferential surface of the super-long jack in the axial direction, and facilitate the cooperation and positioning of the super-long jack and the socket insulator. In the embodiment, the first sheath and the second sheath are fixed to the corresponding jack body in a point-type crimping manner. At this time, the front end outer circumferential surface of each jack body is provided with a point crimping groove, and the point crimping part formed on the first sheath / second sheath after crimping is recessed into the corresponding point crimping groove, so as to realize the crimping and fixing of each sheath.

[0039] In combination Figure 12 , the front end of the super-long pin 33 is a pin part 331, which is in position relationship with the second elastic jack and the intermediate rod. Preferably, in order to improve the contact stability between the pin holes, the front end of the pin part is expanded to form a large diameter section 3311, and the outer diameter of the large diameter section is larger than that of the rear end of the pin part 331. The rear end of the pin part 331 is connected with a super-long pin fixing part 332, and the super-long pin fixing part 332 is positioned by the step with the second plug insulator; the fixing part of the short pin is also in cooperation with the step of the first plug insulator to realize the positioning of the contact; the rear end of the short pin and the super-long pin is a wiring part for connecting the corresponding wire; in addition, the outer circumferential surface of the super-long jack at its two ends is respectively provided with a positioning step 2312, and the positioning step is arranged on each jack body, and the positioning step 2312 cooperates with the corresponding step on the socket insulator to realize the positioning of the super-long jack.

[0040] Further, the second plug shell 31 is provided with a limiting end face 311, and when the wall socket is inserted into the second plug, the socket shell abuts against the limiting end face. At this time, the super-long pin is inserted to the deepest position of the super-long jack (such as Figure 9 ).

[0041] In the embodiment, the first plug is installed on the device A through eight floating shaft sleeves, which can realize the floating of ±1mm in the radial plane X and Y directions. The wall socket is installed on the device B, and the second plug is installed on the device C. When not working, the device A and the device B are separated by a cover plate, and when working, the cover plate is opened. The wall socket can be radially fixed on the mounting panel of the device B through the mounting nut sleeved on the outer side of the wall socket. After the wall socket and the second plug are inserted into position, the second plug is also radially fixed on the mounting panel of the device C through the corresponding mounting nut.

[0042] As Figure 7 and Figure 10 shown, in the initial state, the system is not powered, the wall plug is combined with the second plug, the front end of the plug shell is pressed against the limiting end face, the combination sealing between the plug shell and the second plug shell is realized by the sealing ring 34, and the wall plug is in a separated state with the first plug; for example, the wall plug can realize 100 mm±2 mm axial sliding relative to the second plug, at this time, the wall plug is away from the first plug by 75±2 mm, that is, H1=75±2 mm.

[0043] When the system starts to work, the wall plug moves to the side where the first plug is located under the hydraulic power of the equipment B, and the wall plug is combined with the first plug after sliding 100±2 mm, and the two are in a combined state, at this time, as shown in Figure 8 and Figure 10 , the wall plug is recessed into the first plug shell by 25±2 mm, that is, the combined depth H2=25±2 mm, and the short pins are combined with the first hole components at one end of the super-long type hole. At the same time, the wall plug still remains connected with the second plug, that is, the second hole components and the super-long type pins still remain combined and in contact to be conducted, and the plug shell and the second plug shell still realize the shell sealing through the sealing ring 34. 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, to realize the electrical connection of the entire system.

[0044] When stopping, the power supply system is powered off, and the wall plug moves to the direction of the second plug under the hydraulic power of the equipment B, that is, it is retracted by 100±2 mm to return to the initial position, and the stroke ends, and the system is reset.

[0045] In this embodiment, as shown in Figure 2 , Figure 4 and Figure 6 , 32 short pins are arranged in the first plug, 32 super-long type holes are arranged in the wall plug, and 32 super-long type pins are arranged in the second plug, which constitute a 32-core straight plug-in and plug-out power connector assembly; but in other embodiments, the number of contact pieces in each connector is not limited. In addition, the first plug, the wall plug and the second plug are circular connector products that are adapted to each other, and in other embodiments, they can be rectangular connectors or other types of connectors that can realize axial straight plug-in and plug-out.

[0046] In this embodiment, only the axial sliding stroke between the wall plug and the second plug is taken as an example of 100 mm (with an error of ±2 mm) for illustration; but in other embodiments, the relative axial sliding stroke of the two can be adaptively changed and designed, and the present application does not limit this.

[0047] In the embodiment, the inner hole of the second jack body is arranged through in the axial direction; the front and rear ends of the first jack body are correspondingly arranged in a separated manner, thereby maintaining the sealing of the wall plug and the second plug.

[0048] In the embodiment, the first and second sheaths are connected to the corresponding jack bodies by means of point pressure, and in other embodiments, welding, threaded connection, buckle connection, etc. can also be used.

[0049] It is worth noting that the length of the short pin is shorter than that of the super-long jack, and the super-long jack and the super-long pin are longer than the corresponding contact members in the same size or similar size connectors in the prior art, thereby satisfying the relative axial long-distance sliding of the wall plug and the second plug and ensuring the contact and conduction with the second plug when the wall plug and the first plug are plugged and unplugged; the specific length of each contact member is not limited by the present application.

[0050] Embodiment of super-long contact member:

[0051] In combination with Figures 9 to 14 As shown in the drawings, the super-long contact member includes a short pin, a super-long jack, and a super-long pin, the super-long jack is installed in the wall plug, the short pin is installed in the first plug inserted into one end of the wall plug, and the super-long pin is installed in the second plug inserted into one end of the wall plug, the second plug and the wall plug are in axial sliding contact, when the wall plug and the first plug are in a separated state, the super-long jack and the super-long pin are inserted and conductive, when the wall plug and the first plug are in an inserted state, the super-long jack and the short pin are inserted and conductive, and the super-long jack in the wall plug is still inserted and conductive with the super-long pin in the second plug, that is, the front end of the super-long pin and the second jack component are in elastic insertion contact and conduction. The structure and working principle of the short pin, the super-long jack, and the super-long pin are the same as those in the above-mentioned sliding type multi-core straight plug and pull power connector assembly embodiment, and will not be repeated here.

[0052] The above is only a preferred embodiment of the present application, and the details not described are prior art; any skilled person in the art, without departing from the scope of the technical solutions of the present application, according to the technical essence of the present application, any simple modification, equivalent change and modification of the above embodiment, still belongs to the scope of the technical solutions of the present application.

Claims

1. An extra-long contact element, characterized in that... The application relates to a wall plug-in socket, which comprises a super-long jack, a short pin and a super-long pin. The first jack body is provided with a first elastic jack at the front end, and the second jack body is provided with a second elastic jack at the front end.

2. The super-long contact according to claim 1, wherein: The first jack part further comprises a first sheath sleeved outside the front end of the first jack body, and the second jack part comprises a second sheath sleeved outside the front end of the second jack body.

3. An overlength contact according to claim 2, wherein: The rear ends of the first and second strong mounting springs are provided with first guide angles matched with the corresponding end portions of the middle rod.

4. An overlength contact according to claim 3, wherein: The outer circumferential surfaces of the first and second jack bodies are provided with positioning steps.

5. The super-long contact of claim 1, wherein: The wall plug-in socket is provided with a socket insulator, and the positioning steps are used for axially limiting and matching the socket insulator.

6. The super-long contact of claim 1, wherein: ​ 7. An ultra-long jack, characterized by: The invention relates to a plug-in connector, which comprises a middle rod, a first plug-in part mounted on one end of the middle rod and a second plug-in part mounted on the other end of the middle rod. The middle rod is in the shape of a hollow rod and is in communication with the second plug-in part. The first plug-in part comprises a first plug-in body for plug-in cooperation with a short pin. The second plug-in part comprises a second plug-in body for plug-in cooperation with an overlength pin. The overlength pin can pass through the second plug-in body and is in plug-in cooperation with the middle rod. The rear end of the first plug-in body is divided into at least two circumferentially distributed first strong mounting springs by axial split grooves. The first strong mounting springs enclose a first mounting hole for strong cooperation with the corresponding end of the middle rod. The rear end of the second plug-in body is divided into at least two circumferentially distributed second strong mounting springs by axial split grooves. The second strong mounting springs enclose a second mounting hole for strong cooperation with the corresponding end of the middle rod. The overlength plug-in hole can axially slide relative to the overlength pin and can switch between the plug-in state and the separated state when axially sliding. In the plug-in state, the overlength pin can maintain plug-in contact with the overlength plug-in hole.

8. The super-long jack of claim 7, wherein: The front end of the first plug-in body has a first elastic plug-in hole for cooperation with the short pin. The front end of the second plug-in body has a second elastic plug-in hole for cooperation with the overlength pin.

9. The super-long jack of claim 8, wherein: The first plug-in part further comprises a first sheath sleeved on the outside of the front end of the first plug-in body. The second plug-in part comprises a second sheath sleeved on the outside of the front end of the second plug-in body. The first sheath circumferentially wraps the first elastic plug-in hole. The second sheath circumferentially wraps the second elastic plug-in hole.

10. The super-long jack of claim 9, wherein: The first sheath and the second sheath are fixed to the corresponding plug-in body by point-type pressure connection.

11. The super-long jack of claim 7, wherein: The rear end of the first strong mounting spring and the rear end of the second strong mounting spring are provided with a first guide angle for cooperation with the corresponding end of the middle rod. The outer edge of both ends of the middle rod is provided with a second guide angle.

12. The super-long jack of claim 7, wherein: The outer circumferential surface of the first plug-in body and the outer circumferential surface of the second plug-in body are provided with a positioning step. A plug-in socket is provided with a socket insulator. The positioning step is used for axial positioning cooperation with the socket insulator.

Images