CN112636017A

CN112636017A - Connector, cable terminal and base station system

Info

Publication number: CN112636017A
Application number: CN201910905899.4A
Authority: CN
Inventors: 龚小龙; 陈少华; 罗浩; 张辉信; 杨贵新; 范建平; 梁锋; 刘伟
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2021-04-09
Also published as: CN115296096A; CN115296096B

Abstract

The present disclosure provides a connector, a cable terminal and a base station system, wherein the connector comprises a socket and a plug, the front end of the plug is connected with the socket, and the tail end of the plug is provided with a cable access passage; a cavity communicated with the cable access passage is formed in the plug, a convex elastic sheet and an elastic sheet supporting piece are arranged in the cavity, and the elastic sheet supporting piece extends into the elastic sheet and supports the elastic sheet against the inner wall of the cavity; the two ends of the elastic sheet are respectively a supporting end and a line pressing end, wherein the supporting end is a fixed end, and the line pressing end is a rotatable end; a reed is arranged in the plug, one end of the reed extends into the cavity, and the other end of the reed is connected with an internal terminal in the socket; after the cable stretches into the cavity through the cable access passage, the wire pressing end of the elastic piece can compress the cable terminal on the part of the spring piece stretching into the cavity under the action of elastic force, so that the cable terminal is connected with the internal connection terminal through the spring piece. The connector of the present disclosure provides the clamping force required when pressing the line through the convex elastic sheet, and the size of the connector is reduced.

Description

Connector, cable terminal and base station system

Technical Field

The present disclosure relates to the field of connector technology, and more particularly, to a connector, a cable terminal, and a base station system including the connector.

Background

With the development of the domestic communication industry, the data transmission speed is faster and faster, the density of the communication base station is higher and higher at present, but the site resources of the newly-built base station are less and less, so that the size of the base station is required to be smaller, and the size of the base station used as a connector of a power interface of the base station is also correspondingly reduced, especially for an AAU (Active Antenna Unit) base station of a 5G project. The speed in the 5G era is higher, and the power consumption of the whole machine is greatly improved compared with that of a 4G whole machine, so that the through-current capacity of the connector is required to be greatly improved under a very small volume; the AAU base station is basically installed on the tower, and the connector needs to be convenient to install and maintain on the engineering site, but under the condition of high current, the connector usually adopts a locking screw line pressing mode, so that the occupied space is large, and the installation is inconvenient; meanwhile, the screw line pressing structure has many defects, such as: the screw is easy to lose, the screw head is easy to expose and electric leakage, lightning stroke and the like are easy to occur, and potential safety hazards are brought to operators and users.

Disclosure of Invention

The present disclosure provides a connector and a base station system to solve the problems of large connector volume, inconvenient field installation and maintenance, and electric leakage and lightning stroke.

According to an aspect of the embodiments of the present disclosure, there is provided a connector, including a socket and a plug, a front end of the plug is connected to the socket, and a tail end of the plug is provided with a cable access passage;

a cavity communicated with the cable access passage is formed in the plug, a convex elastic sheet and an elastic sheet supporting piece are arranged in the cavity, and the elastic sheet supporting piece extends into the elastic sheet and abuts against the inner wall of the cavity; the two ends of the elastic sheet are respectively a supporting end and a line pressing end, wherein the supporting end is a fixed end, and the line pressing end is a rotatable end;

a reed is arranged in the plug, one end of the reed extends into the cavity, and the other end of the reed is connected with an internal terminal in the socket; after the cable extends into the cavity through the cable access passage, the wire pressing end of the elastic sheet can press the cable terminal at the front end of the cable against the part of the spring sheet extending into the cavity under the action of elastic force, so that the cable terminal is connected with the internal terminal through the spring sheet.

According to another aspect of the embodiments of the present disclosure, there is provided a cable terminal configured to fix a cable in a connector as described above; the cable terminal is provided with a plurality of bulges at intervals on one side surface facing the spring plate, and the surface of one side of the cable terminal contacted with the spring plate is a plane.

According to still another aspect of the embodiments of the present disclosure, there is provided a base station system including: base stations, power supplies, cables, and connectors as described above; one end of the cable is connected with the power supply, the other end of the cable is connected into the plug of the connector through a cable terminal, and the socket of the connector is connected with the base station.

The technical scheme provided by the embodiment of the disclosure has the following beneficial effects:

according to the connector provided by the embodiment of the disclosure, the cavity is arranged in the plug, and the convex elastic sheet is adopted in a smaller space of the cavity to provide the clamping force required by line pressing, so that the size of the connector is reduced; when the cable terminal is installed, the cable terminal is directly inserted into the cavity of the plug through the cable access passage to drive the wire pressing end of the elastic sheet to move towards the advancing direction of the cable terminal and gradually compress the cable terminal, so that the operation is simple and reliable, and the applicability is wide; and the connector does not have locking screw, has reduced the risk of connector electric leakage and thunderbolt.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosed embodiments and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the example serve to explain the principles of the disclosure and not to limit the disclosure.

Fig. 1 is a schematic overall structure diagram of a connector according to a first embodiment of the disclosure;

fig. 2 is a partial schematic structural view of a connector according to an embodiment of the present disclosure when a cable is inserted into a plug;

fig. 3 is a partial schematic view of the shapes and relative positions of the positioning block and the post rod of a connector according to an embodiment of the disclosure;

fig. 4 is a schematic view illustrating an operating state of internal components of a plug during unlocking of a cable terminal according to a first embodiment of the present disclosure;

fig. 5 is a schematic view illustrating an operating state of internal components of the plug after the cable terminal is taken out according to the first embodiment of the disclosure;

FIG. 6 is a schematic perspective view of a single spring plate of a connector according to an embodiment of the present disclosure;

fig. 7 is a schematic arrangement diagram of internal reeds and elastic pieces of the plug at a viewing angle according to the first embodiment of the present disclosure;

fig. 8 is a schematic arrangement diagram of internal reeds and elastic pieces of the plug at another view angle according to the first embodiment of the present disclosure;

fig. 9 is a schematic illustration showing the insertion of a plug and a socket of a connector according to an embodiment of the present disclosure;

fig. 10 is a schematic diagram of a plug anti-miscoof double-row key slot of a connector according to an embodiment of the disclosure;

fig. 11 is a schematic diagram of a receptacle error-proof double row key of a connector according to an embodiment of the disclosure;

fig. 12 is an assembly view of a receptacle and receptacle contacts of a connector according to an embodiment of the present disclosure;

fig. 13 is a schematic structural diagram of a receptacle contact of a connector according to an embodiment of the present disclosure;

fig. 14 is a schematic diagram of a plug and socket quick-plugging structure of a connector according to an embodiment of the disclosure;

fig. 15 is a schematic view of a cable terminal inserted into the interior of a connector according to a second embodiment of the disclosure;

fig. 16 is a schematic structural diagram of a base station system according to a third embodiment of the present disclosure.

Detailed Description

In order to make the technical solutions of the present disclosure better understood by those skilled in the art, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the detailed description set forth herein is intended only to illustrate and explain the present disclosure and is not intended to limit the present disclosure.

It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be arbitrarily combined with each other without conflict.

Example one

Connectors are one of the most common components in electronic devices and are configured to bridge a circuit between a blocked or isolated dead circuit to allow current flow and allow the circuit to perform a predetermined function, and must ensure smooth, continuous and reliable flow of current after the connector is installed.

The connector generally comprises a plug part arranged to be connected to a power supply side, typically a connection cable, and a socket part fixed to the side to be powered, the plug and the socket being plugged together by mechanical force such that current flows through the connector into the device to be powered. Conventional heavy current connector is usually fixed the cable in the connector through lock screw line ball mode, but the space that screw line ball mode occupy is big to the operation is inconvenient, need have great operating space during the installation, is unfavorable for the higher condition of requirement to the space.

In order to solve the problems of large occupied space and inconvenient installation caused by the way of locking a screw and pressing a wire in a conventional high-current connector, a first embodiment of the disclosure provides a connector, please refer to fig. 1 and 2, fig. 1 is a schematic view of an overall structure of the connector provided by the first embodiment of the disclosure, and fig. 2 is a schematic view of a local structure of the connector provided by the first embodiment of the disclosure when a cable is inserted into a plug. As shown in fig. 1 and 2, the connector comprises a plug 1 and a socket 2, wherein the front end of the plug 1 is connected with the socket 2, and the tail end of the plug 1 is provided with a cable access passage 11;

a cavity 12 communicated with the cable access passage 11 is arranged in the plug 1, a convex elastic sheet 13 is arranged in the cavity 12, an elastic sheet supporting piece 14 is also arranged in the cavity 12, the elastic sheet supporting piece 14 extends into the elastic sheet 13 and supports the elastic sheet 13 against the inner wall of the cavity 12, two ends of the elastic sheet 13 are a wire pressing end 131 and a supporting end 132 respectively, wherein the supporting end 132 of the elastic sheet 13 is a fixed end and is fixed in the cavity 12, and the wire pressing end 131 of the elastic sheet 13 is a rotatable end and can rotate around the contact position of the elastic sheet 13 and the elastic sheet supporting piece 14 in the cavity 12;

the inside position near the front end of the plug 1 is also provided with a reed 15, one end of the reed 15 extends into the cavity 12, after the cable 3 extends into the cavity 12 through the cable access passage 11, the wire pressing end 131 of the elastic sheet 13 can press the cable terminal 31 at the front end of the cable 3 tightly on the part of the reed 15 in the cavity 12 under the action of elastic force, and the other end of the reed 15 is connected with the internal terminal 4 in the socket 2, so that the cable terminal 31 at the front end of the cable 3 is connected with the internal terminal 4 in the socket 2 through the reed 15.

Optionally, the inner wall of the cavity 12 is made of an insulating material, and the spring piece 13 is made of stainless steel; as shown in fig. 2, the shape of the elastic sheet 13 is a substantially inverted U shape or an inverted V shape with both ends tilted;

the elastic supporting member 14 has a circular top end, and when the elastic supporting member extends into the elastic sheet 13, the circular top end abuts against the inner wall of the elastic sheet 13; furthermore, at least one protrusion (for example, two protrusions) is arranged at the position where the circular top end contacts with the elastic sheet 13, so as to better abut against the inner wall of the elastic sheet 13;

the cable terminal 31 at the front end of the cable 3 is a tubular terminal; when the cable terminal 31 is not inserted into the cavity 12, the wire pressing end 131 of the elastic sheet 13 does not contact the cable terminal 31, and the distance between the wire pressing end 131 and the spring sheet 15 is short, generally less than 2 mm; when the cable terminal 31 is inserted into the cavity 12, one side surface of the cable terminal 31 can touch the pressing line end 131 of the elastic sheet 13, and the pressing line end 131 is driven to move towards the advancing direction of the cable terminal 31, and the other opposite side surface of the cable terminal 31 is in contact with one side surface of the spring sheet 15; the back surface of the contact position of the spring piece 15 with the cable terminal 31 (i.e., the other side surface of the spring piece 15) is supported by the inner wall of the cavity 12;

during the process of inserting the cable terminal 31 into the cavity 12, the support end 132 of the elastic sheet 13 remains stationary, and the wire pressing end 131 of the elastic sheet 13 moves towards the advancing direction of the cable terminal 31 under the driving of the cable terminal 31, so that the elastic deformation of the elastic sheet 13 provides a pressing force (i.e. a clamping force required for wire pressing), thereby forming an elastic sheet pressing mechanism; the elastic sheet pressing mechanism can be compatible with 4-16 mm²The cable of (3) satisfies the holding force of the cable terminal, so that the cable terminal 31 is reliably contacted with the spring piece 15;

the cable terminal 31 is in surface contact with the spring leaf 15 to form a large effective contact area; the contact position of the wire pressing end 131 of the elastic sheet 13 with the cable terminal 31 (which may be referred to as a wire pressing position) is about 1/3 of the front end of the cable terminal to ensure the reliability of the product.

The connector provided by this embodiment adopts a non-screw wire pressing mode, wherein a cavity 12 is arranged in the plug 1, and when a cable terminal 31 at the front end of a cable 3 extends into the cavity 12 through a cable access passage 11, a support end 132 of a spring plate 13 arranged in the cavity 12 is kept stationary, a wire pressing end 131 of the spring plate 13 moves towards the advancing direction of the cable terminal 31 under the driving of the cable terminal 31, and the spring plate 13 gradually presses the cable terminal 31 until the cable terminal 31 is pressed on a spring plate 15 with one end extending into the cavity 12, and the other end of the spring plate 15 is connected with an internal terminal 4 in the socket 2, so that the connection between the cable terminal 31 at the front end of the cable 3 and the internal terminal 4 in the socket 2 is realized; therefore, compared with a connector adopting a non-screw line pressing mode, the connector provided by the embodiment provides pressing force required when the line is pressed through the elastic sheet, and the size of the connector is reduced; the connector provided by the embodiment is simple and reliable to operate and wide in applicability, and because the connector is not provided with locking screws, the risk of electric leakage and lightning stroke of the connector is reduced; the compatible line of connector that this embodiment provided is footpath wide, easy operation, and the product temperature rise is low, long service life.

Referring to fig. 3 to 5, fig. 3 is a partial schematic view of shapes and relative positions of a positioning block and a push rod of a connector according to a first embodiment of the present disclosure, fig. 4 is a schematic view of a working state of a plug internal part during unlocking of a cable terminal according to a first embodiment of the present disclosure, and fig. 5 is a schematic view of a working state of a plug internal part after the cable terminal is taken out according to a first embodiment of the present disclosure. As shown in fig. 3 to 5, further, the end of the plug 1 is further provided with a push rod moving channel and a positioning block moving channel; the push rod moving channel is arranged between the cable access channel 11 and the elastic sheet 13 and is communicated with the cavity 12, and the positioning block moving channel and the push rod moving channel form a preset angle (for example, 90 degrees) and are communicated with the same; a positioning block 16 is arranged in the positioning block moving channel, an ejector rod 17 is arranged in the ejector rod moving channel, the positioning block 16 can move back and forth along the positioning block moving channel, the ejector rod 17 can move back and forth along the ejector rod moving channel, and the ejector rod 17 can move forward to push the wire pressing end 131 of the elastic sheet 13 away from the cable terminal 31; the jack 17 is provided with an elastic member 171, one end of the elastic member 171 is fixed to the front portion of the jack 17, and the other end of the elastic member 171 is a free end which extends rearward (i.e., in the direction of the plug tip) and protrudes in the direction approaching the movement passage of the positioning block to form a substantially L-shaped structure.

In this embodiment, the plug 1 is preferably an insulator; various channels are arranged on the plug, and specifically the following channels are arranged on the plug: the cable inlet and outlet channel 11, the positioning block moving channel and the ejector rod moving channel are arranged at the tail end of the plug; wherein the cable access passage 11 and the ejector rod moving passage are both communicated with the cavity 12, and the positioning block moving passage is communicated with the ejector rod moving passage.

As shown in fig. 3 and 4, when the cable terminal 31 needs to be unlocked, the ejector rod 17 is pressed downward in the direction shown by the arrow in fig. 3 to make the front end of the ejector rod contact with the elastic sheet 13, and drives the wire pressing end 131 of the elastic sheet 13 to move towards the head of the cable terminal 31 until the elastic sheet 13 is separated from the cable terminal 31, in the process, the free end of the elastic member 171 on the ejector rod 17 is compressed in the ejector rod moving channel, and when the free end of the elastic member 171 just passes through the positioning block moving channel, the free end of the elastic member is bounced and clamped in the positioning block moving channel under the action of the elastic force, and meanwhile, the positioning block 16 in the positioning block moving channel is pushed to move outward, at this time, the front end of the ejector rod 17 already pushes the wire pressing end 131 of the elastic sheet 13 away from the wire pressing position; of course, to prevent the positioning block 16 from being removed from the plug during the outward movement, a corresponding positioning member should be provided at a suitable position to limit the stroke of the positioning block 16.

As shown in fig. 5, after the cable is taken out, or when the cable terminal 31 needs to be locked again, the positioning block 16 is pressed down to make the free end of the elastic member 171 on the push rod 17 be released from the positioning block moving channel, and at this time, the elastic piece 13 pushes the push rod 17 to move outwards under the action of the elastic force, so that the cable terminal 31 returns to the locked state from the unlocked state; of course, in order to prevent the plunger 17 from being removed from the plug during the outward movement, a corresponding positioning member should be provided at a suitable position to limit the stroke of the plunger 17, for example, a step may be provided at the end of the plunger moving passage away from the elastic sheet 13, and when the elastic member 171 onto which the plunger 17 moves outward reaches the step, the elastic member 171 is rebounded, thereby fixing the plunger 17 at the step.

Optionally, the positioning block 16 may further be connected to an alarm device, and the alarm device is configured to alarm when the positioning block 16 moves outwards along the positioning block moving channel to remind that the cable terminal 31 is not pressed.

Referring to fig. 6 to 8, fig. 6 is a schematic perspective view illustrating a single spring plate of a connector according to a first embodiment of the present disclosure, fig. 7 is a schematic layout view illustrating spring plates and spring plates inside a plug according to a first view angle provided by the first embodiment of the present disclosure, and fig. 8 is a schematic layout view illustrating spring plates and spring plates inside the plug according to another view angle provided by the first embodiment of the present disclosure. As shown in fig. 6 to 8, further, the number of the spring pieces 15 is at least two, and the number of the spring pieces 13 is equal to that of the spring pieces 15 and corresponds to that of the spring pieces 15 one by one; each spring plate 15 includes a fixing portion 151, a connecting portion 152 and a holding portion 153, wherein the fixing portion 151 is configured to extend into the cavity 12 and to be in contact with the cable terminal 31 at the front end of the cable 3 so that the pressing end 131 of the spring plate 13 can press the cable terminal 31 against the surface of the fixing portion 151 of the spring plate 15, the holding portion 153 is configured to hold the internal terminal 4 in the socket 2, the connecting portion 152 is configured to connect the fixing portion 151 and the holding portion 153, and the connecting portion 152 is bent, and the shape thereof may be substantially S-shaped.

Taking two reeds as an example, the fixing portions 151 of the two reeds 15 are symmetrically arranged and arranged along a first direction, and the clamping portions 153 of the two reeds 15 are arranged in parallel and arranged along a second direction, wherein the first direction and the second direction form a preset angle, for example, the first direction is perpendicular to the second direction; the connecting portions 152 of the two leaves 15 are bent in opposite directions so that the holding portions 153 of the two leaves 15 form the configuration shown in fig. 8 arranged up and down.

As shown in fig. 8, two reeds 15 are symmetrically and staggered, the connecting part 152 of the left reed 15 bends downward, the connecting part 152 of the right reed 15 bends upward, and the clamping parts 153 of the two reeds are vertically arranged at the middle position of the front end of the plug 1, so that the reeds 15 on the left side and the right side are effectively staggered, the size of the plug 1 can be effectively compressed, and the space is fully utilized.

Since the power supplies for the electronic devices include both positive and negative electrodes, accordingly, the number of the cable terminals 31 connected to the connector is also two, and the two terminals serve as the positive and negative electrodes, respectively, and the number of the spring pieces 15 and the number of the spring pieces 13 are also two accordingly. The two spring pieces 15 are preferably separated from each other by an insulator, and the two spring pieces 15 can be in contact with the positive cable terminal 31 and the negative cable terminal 31, respectively.

The reed 15 is formed by punching, the material of the reed can be high-conductivity copper material with the thickness of 0.8mm, the material of copper alloy C1814 is preferably used, the elasticity of the copper alloy C1814 is good, the conductivity is 80% IACS, the electric conduction is good, the whole plugging is reliable, the contact resistance is small, the temperature rise is low, and the plugging service life and the reliability of the product can be improved.

Further, retaining portion 151 of leaf 15 comprises a first plate, a second plate, and a riser, the first plate and the second plate being disposed opposite to each other, the riser connecting the same side ends of the first plate and the second plate, such that leaf 15 is substantially v-21274; the inner surface of the first plate (i.e., the surface of the first plate opposite to the second plate) can contact with the cable terminal 31, and the cable terminal 31 can be pressed against the inner surface of the first plate by the pressing end 131 of the spring 13, while the inner surface of the second plate (i.e., the surface of the second plate opposite to the first plate) contacts with the supporting end 132 of the spring 13 and is abutted against the inner surface of the second plate by the supporting end 132 to fix the supporting end 132. As shown in fig. 8, one end of the first plate of the fixing portion 151 is connected to the connecting portion 152, and the connecting end of the first plate to the connecting portion 152 and the connecting end of the first plate to the riser are adjacent.

For the v-21274h-shaped fixing portion 151 of the spring plate 15, the inner surface of the second plate contacts the support end 132 of the spring plate 13, the inner surface of the first plate and the wire pressing end 131 of the spring plate 13 fix the cable terminal 31 inserted therebetween, and the v-21274h-shaped fixing portion 151 restrains both ends of the spring plate 13 therein and fastens the cable terminal 31 to the spring plate 15 when pressing the wire.

Referring to fig. 9, fig. 9 is a schematic diagram illustrating a plug and a socket of a connector according to an embodiment of the present disclosure. As shown in fig. 9, further, the holding portion 153 of the spring 15 comprises two symmetrically arranged holding legs, so that when the plug 1 and the socket 2 are inserted, the distance L between the end of each holding leg and the inner wall of the plug 1 around the holding leg is 0.15-0.25 mm. According to the actual situation, L can be selected to be 0.15mm, 0.2mm, 0.25mm and the like, and different L values are selected according to the situation so as to improve the anti-vibration capability and the anti-oblique insertion capability of the connector and ensure the reliability of insertion.

Further, when the number of the spring pieces 15 is two, the number of the spring pieces 13 is also two; the two spring pieces 13 are arranged in the cavity 12 side by side, and each spring piece 13 corresponds to one spring piece 15; the part of the elastic sheet 13 where the wire pressing end 131 is located can be bent outwards by a certain angle, so that the wire pressing end 131 is approximately perpendicular to the cable terminal 31 when the cable terminal 31 is pressed; the wire pressing end 131 of the spring plate 13 may also be slightly bent in the advancing direction of the cable terminal 13. The portion of the resilient plate 13 where the supporting end 132 is located may also be bent outward at a certain angle to ensure that the supporting end 132 is in full contact with the inner surface of the second plate of the v-shaped fixing portion 151.

In this embodiment, when the pressing end 131 of the elastic piece 13 presses the cable terminal 31, two supporting points are formed at the position where the middle portion of the elastic piece 13 contacts the inner wall of the cavity 12 and the position where the supporting end 132 of the elastic piece 13 contacts the fixing portion 151 of the spring piece 15.

Since the number of the spring pieces 13 is two, accordingly, the number of the spring pieces 15 and the number of the cable terminals 31 are also two, and each spring piece 13 corresponds to one cable terminal 31 and one spring piece 15, and each cable terminal 31 corresponds to one cable access passage 11. The two spring plates 13 are preferably separated by an insulator to form a positive and a negative current path.

The front end of the cable terminal 31 is spaced apart from one side surface of the spring 13 by a plurality of protrusions, for example, the protrusions may be rectangular protrusions, and the width direction of the rectangular protrusions may be the same as the moving direction of the cable terminal 31. In a preferable case of the present embodiment, the wire pressing end 131 of the elastic piece 13 is slightly bent in the advancing direction of the cable terminal 13, and the wire pressing end 131 can press and seize the cable terminal 31 section by section when the cable terminal 31 advances.

Further, as shown in fig. 1 and 4, a longitudinal section of the end of the plug 1 is substantially triangular, a groove is provided on one oblique side surface of the end of the plug 1, the number of the grooves corresponds to the number of the wire inlets, each wire inlet is provided at the bottom of the corresponding groove, each cable corresponds to one wire inlet, each wire inlet is further communicated with the corresponding cable inlet and outlet channel 11, and each wire inlet is separated by an insulator to prevent leakage between the cables after each cable is inserted, and each cable inlet and outlet channel 11 can be parallel to the other oblique side surface of the end of the plug 1. When the wiring is completed, the cable terminal 31 and a portion of the cable connected thereto are inserted into the corresponding cable wire entry and exit passage 11.

The front half part of the plug 1 is approximately cuboid, two inclined side faces are retracted inwards at the tail end of the plug 1, a cable wire inlet is arranged in a groove on one inclined side face, a cable is led in through the side face, the width and height size of the plug 1 are reduced, the length direction space of the plug 1 is fully utilized, and the appearance of the plug is coordinated and attractive.

Referring to fig. 10 and 11, fig. 10 is a schematic diagram of a plug error-proof double-row key slot of a connector according to an embodiment of the present disclosure, and fig. 11 is a schematic diagram of a socket error-proof double-row key of a connector according to an embodiment of the present disclosure. As shown in fig. 10 and fig. 11, further, the socket 2 adopts a full-enclosed structure, the connection end of the socket 2 and the plug 1 is provided with error-proof double-row keys 18, and the front end of the plug 1 is provided with error-proof double-row key slots 19 corresponding to the shape and position of the error-proof double-row keys 18.

The shape and position of the double-row key slot 19 for preventing error difference of the plug 1 correspond to the shape and position of the double-row key position 18 for preventing error difference of the socket 2, and the plug 1 can be inserted into the socket 2 only according to a fixed direction, so that poor contact is avoided. The specific structures of the double rows of keys 18 and the double rows of key slots 19 for preventing error difference belong to the mature technology in the field, so the structures of the two keys are not described again.

Referring to fig. 12 and 13, fig. 12 is a schematic view illustrating an assembly of a socket and a socket contact of a connector according to a first embodiment of the present disclosure, and fig. 13 is a schematic view illustrating a structure of the socket contact of the connector according to the first embodiment of the present disclosure. As shown in fig. 12 and fig. 13, further, a socket contact 20 is provided on the socket 2, the socket contact 20 includes an internal terminal 4 (mentioned above) and an external terminal 5 connected thereto, wherein the internal terminal 4 is provided inside the socket 2, the external terminal 5 extends from inside the socket 2 to outside the socket 2, and then the current flows in the following directions: power supply side-cable 3-cable terminal 31-reed 15-internal terminal 4-external terminal 5-side to be powered. Further, the socket contact 20 further comprises a foldable snap structure 201 outside the socket 2, which is arranged to snap the socket contact 20 onto the socket 2. Specifically, the portion of the external connection terminal 5 located outside the socket 2 is two bar-shaped protrusions, and the snap structure 20 is provided between the two bar-shaped protrusions.

When the socket contact 20 is mounted, the socket contact 20 is mounted at a corresponding position in the socket 2, and then the snap structure 201 is folded to snap the socket contact 20 onto the socket 2. Therefore, the socket contact element 20 adopts a structure of firstly assembling and then riveting, so that the whole parts of the socket 2 are reduced, the structure of the socket 2 is simplified, the cost is reduced, and the socket contact element is ensured to be fixed reliably.

Referring to fig. 14, fig. 14 is a schematic diagram of a plug and socket quick plugging structure of a connector according to an embodiment of the present disclosure, as shown in fig. 14, further, an elastic claw 22 extending toward the plug 1 is further disposed inside a connection end of the socket 2 and the plug 1, and a protruding portion 23 is disposed on a side surface of an end portion of the elastic claw 22; the outside cover of plug 1 is equipped with slidable shell 21, is provided with the bullet claw access way corresponding with the position of bullet claw 22 between the front end side of plug 1 and the shell 21 inner wall, is equipped with the recess (not marked in the figure) with bellying 23 looks adaptation in the bullet claw access way, is equipped with dog 24 on the shell 21 inner wall, just the recess sets up with dog 24 relatively, and dog 24 slides under the drive of shell 21 so that bellying 23 is compressed tightly in the recess or breaks away from the recess. The elastic claw 22, the convex part 23 on the elastic claw, the groove in the elastic claw access passage, the shell 21 and the stop block 24 on the inner wall of the shell form a plug and socket quick plugging structure together.

Alternatively, the length of the latch access passage is slightly longer than the length of the latch 22, so that the latch 22 can be inserted into the latch access passage when the plug 1 is plugged into the socket 2.

Optionally, there are two elastic claws 12, and the two elastic claws are symmetrically distributed relative to the central axis of the socket 2, so that the elastic claws 12 are uniformly stressed, and the unlocking is easier. Correspondingly, two elastic claw access passages are also arranged, and each elastic claw 12 corresponds to one elastic claw access passage.

When the plug 1 is inserted into the socket 2, the latch 22 of the socket 2 enters the latch access passage of the plug 1 until the protrusion 23 on the latch enters the groove of the latch access passage, and at this time, the stopper 24 on the inner wall of the housing 21 slides in the direction of the front end of the plug 1 to apply a pressure to the latch 22, so that the protrusion 23 on the latch is clamped into the groove, thereby limiting the movement of the plug 1 relative to the latch 22, and because the latch 22 is integrated with the socket 2, the movement of the plug 1 relative to the socket 2 is limited, and the plug 1 and the plug 2 are locked. When unlocking, the housing 21 of the plug 1 is pushed only in the direction of the arrow shown in fig. 14, so that the stopper 24 on the inner wall of the housing 21 slides relative to the elastic claw 22, and when the stopper 24 slides away from the end of the elastic claw 22, no stopper 24 applies pressure to the elastic claw 22, so that the elastic claw 22 has an upward moving space, and the protrusion 23 on the elastic claw 22 can withdraw from the groove of the elastic claw access passage, thereby unlocking the plug 1 and the socket 2.

According to the connector provided by the embodiment, the cable terminal inserted into the plug is fastened by the elastic piece pressing mechanism, the clamping force required by pressing the line is provided by the elastic force of the elastic piece, and the spring piece with a specific structure is adopted, so that the elastic piece can be supported and fixed, and the cable terminal can be well contacted and fixed on one surface of the spring piece, so that the installation and fixation of the wiring end of the connector in a smaller space can be conveniently and quickly realized, the integral volume of the connector is reduced, the operation of the connector is simple and reliable, and the applicability is wide; the reed structure is arranged in the plug so that reeds on two sides are arranged and effectively staggered, the space is fully utilized, and the volume of the plug is effectively compressed; the locked cable terminal is unlocked through the ejector rod and the positioning block in the connector, the elastic sheet can be separated from the cable terminal only by pressing the ejector rod to a certain position, springback can be prevented, the cable terminal and the cable can be conveniently and quickly taken out, and resetting or continuous locking of the cable terminal can be quickly realized by pressing the positioning block, so that the connector is simpler and more convenient to maintain, and the working efficiency is improved; meanwhile, the socket contact element in the socket adopts a structure of firstly assembling and then riveting, so that the whole parts of the socket are reduced, the structure of the socket is simplified, the cost is reduced, and the socket contact element is ensured to be fixed reliably; insulators are arranged among cable inlets of the plug, and the cable can be effectively prevented from electric leakage and lightning stroke after being inserted; in the aspect of the insertion of plug and socket, the slidable shell is sleeved outside the plug, the protruding part of the elastic claw on the socket is pressed in the groove of the elastic claw access passage or is separated from the groove through the stop block on the inner wall of the shell, and the shell can be pulled at any position on the four sides of the plug to realize the locking and unlocking separation of the plug and the socket, so that the connector can meet the unlocking requirement in a narrow space.

Example two

Referring to fig. 15, fig. 15 is a schematic view of a cable terminal inserted into a connector according to a second embodiment of the present disclosure. As shown in fig. 15, the cable terminal 31 may have a tubular structure, which can fix the cable 3 to the connector according to the first embodiment.

A plurality of protrusions are arranged on one side surface of the cable terminal 31 facing the spring plate 13 at intervals, for example, the protrusions may be rectangular protrusions, and the width direction of the rectangular protrusions may be the same as the moving direction of the cable terminal 31; the surface of the cable terminal 31 on the side contacting the spring 15 is flat.

When the cable terminal 31 advances, because the side surface of the cable terminal 31 facing the elastic sheet 13 is provided with a plurality of protrusions at intervals, the wire pressing end 131 can press and clamp the cable terminal 31 section by section, and the cable terminal 31 is better fastened in the connector.

One end of the cable terminal provided by the embodiment is connected and fixed with one end of the cable, the other end of the cable terminal is inserted into a plug of the connector and is fixed in the plug by a spring plate pressing mechanism of the plug, a plurality of bulges are arranged on one side surface of the cable terminal contacted with the spring plate pressing mechanism at intervals, and the other side surface is arranged to be a plane, so that one side of the cable terminal with the bulges can be pressed and clamped section by the spring plate pressing mechanism, one side with the plane can be well contacted with the surface of a spring plate, the firm connection of the cable in the connector is ensured, and the current can better flow into the spring plate.

EXAMPLE III

Referring to fig. 16, fig. 16 is a schematic structural diagram of a base station system according to a third embodiment of the present disclosure. As shown in fig. 16, the base station system includes: base station 8, connector 7 as described in the first embodiment, cable 3 and power supply 6. One end of the cable 3 is connected to a power supply 6, the other end is inserted into a plug of a connector 7 through a cable terminal, and a socket of the connector 7 is connected to a base station 8.

The base station system provided by the embodiment adopts the connector in the first embodiment, and the connector can be quickly plugged and pulled out and quickly wired, so that the base station is quickly powered on and off, and the base station is more convenient and simpler to install and maintain.

It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims

1. A connector comprises a plug (1) and a socket (2), and is characterized in that the front end of the plug (1) is connected with the socket (2), and the tail end of the plug (1) is provided with a cable access passage (11);

a cavity (12) communicated with the cable access passage (11) is formed in the plug (1), a convex elastic sheet (13) and an elastic sheet supporting piece (14) are arranged in the cavity (12), and the elastic sheet supporting piece (14) extends into the elastic sheet (13) and enables the elastic sheet (13) to abut against the inner wall of the cavity (12); two ends of the elastic sheet (13) are respectively a wire pressing end (131) and a supporting end (132), wherein the supporting end (132) is a fixed end, and the wire pressing end (131) is a rotatable end;

a reed (15) is further arranged in the plug (1), one end of the reed (15) extends into the cavity (12), and the other end of the reed (15) is connected with an internal terminal (4) in the socket (2); after the cable (3) extends into the cavity (12) through the cable access passage (11), the pressing end (131) of the elastic sheet (13) can press the cable terminal (31) at the front end of the cable (3) on the part of the spring sheet (15) extending into the cavity (12) under the action of elastic force, so that the cable terminal (31) is connected with the internal terminal (4) through the spring sheet (15).

2. The connector according to claim 1, wherein the end of the plug (1) is further provided with a push rod moving channel and a positioning block moving channel, the push rod moving channel is arranged between the cable access channel (11) and the spring plate (13) and is communicated with the cavity (12), and the positioning block moving channel is at a preset angle with the push rod moving channel and is communicated with the push rod moving channel;

a push rod (17) capable of moving back and forth is arranged in the push rod moving channel, the push rod (17) can move forward to push a wire pressing end (131) of the elastic sheet (13) away from the cable terminal (31), and a positioning block (16) capable of moving back and forth is arranged in the positioning block moving channel;

the positioning block is characterized in that an elastic part (171) is arranged on the ejector rod (17), one end of the elastic part (171) is fixed to the front portion of the ejector rod (17), and the other end of the elastic part (171) is a free end and extends backwards and protrudes towards the direction close to the positioning block moving channel.

3. Connector according to claim 2, wherein the positioning block (16) is connected to an alarm device arranged to alarm when the positioning block (16) is moved outwards along the positioning block moving channel.

4. Connector according to claim 1, characterized in that the spring plate (15) comprises a fixing portion (151), a connecting portion (152) and a clamping portion (153); the fixing part (151) extends into the cavity (12), the clamping part (153) is used for clamping the internal terminal (4) in the socket (2), the connecting part (152) is used for connecting the fixing part (151) and the clamping part (153), and the connecting part (152) is bent.

5. Connector according to claim 4, characterized in that the number of said reeds (15) is at least two, said reeds (13) being equal and in one-to-one correspondence with said reeds (15); the adjacent reeds (15) are separated by an insulator; the adjacent spring plates are separated by an insulator.

6. Connector according to claim 5, characterized in that the number of said reeds (15) is two, the fixing portions (151) of the two reeds (15) are symmetrically arranged and arranged along a first direction; the clamping parts (153) of the two reeds (15) are arranged in parallel and are arranged along a second direction, wherein the first direction and the second direction form a preset angle; the connection parts (152) of the two spring leaves (15) are bent in opposite directions.

7. Connector according to claim 4, characterized in that the fixing portion (151) of the leaf (15) comprises a first plate, a second plate and a riser, the first plate and the second plate being arranged opposite each other, the riser connecting the ends of the first plate and the second plate on the same side; an inner surface of the first plate is contactable with a cable terminal (31); the supporting end (132) of the elastic sheet (13) is abutted against the inner surface of the second flat plate.

8. Connector according to claim 4, characterized in that the clamping portion (153) of the spring plate (15) comprises two symmetrically arranged clamping legs; when the plug (1) is inserted into the socket (2), the distance between the end part of each clamping pin and the inner wall of the peripheral plug (1) is 0.15-0.25 mm.

9. The connector according to claim 1, wherein the portion of the spring (13) where the line pressing end (131) is located is bent outwards at an angle, so that the line pressing end (131) is approximately perpendicular to the cable terminal (31) when pressing the cable terminal (31); the part where the supporting end (132) of the elastic sheet (13) is also bent outwards for a certain angle.

10. Connector according to claim 9, characterized in that the crimping end (131) of the spring plate (13) is slightly bent in the direction of advance of the cable terminal (31).

11. Connector according to claim 1, characterized in that the longitudinal section of the plug (1) end is substantially triangular; a groove is formed in one inclined side face of the tail end of the plug (1), a wire inlet is formed in the bottom of the groove, and the wire inlet is communicated with the cable inlet-outlet channel (11).

12. Connector according to claim 1, characterized in that the connection end of the socket (2) and the plug (1) is provided with an error-proof double row key (18), and the front end of the plug (1) is provided with an error-proof double row key groove (19) corresponding to the shape and position of the error-proof double row key (18).

13. The connector according to claim 1, wherein a socket contact (20) is provided on the socket (2), the socket contact (20) comprising the internal terminal (4) and an external terminal (5) connected thereto; the socket is characterized in that the internal connection terminal (4) is arranged inside the socket (2), the external connection terminal (5) extends out of the socket (2), and the part, located outside the socket (2), of the external connection terminal (5) is two strip-shaped bulges.

14. Connector according to claim 13, characterized in that the socket contact (20) further comprises a foldable snap structure (201), the snap structure (201) being provided outside the socket (2) between the two bar-shaped protrusions and being arranged to snap-fit the socket contact (20) to the socket (2).

15. The connector according to claim 1, characterized in that the inside of the connecting end of the socket (2) and the plug (1) is further provided with a spring claw (22) extending towards the plug (1), and the side of the end of the spring claw (22) is provided with a convex part (23); the outside cover of plug (1) is equipped with slidable shell (21), the front end side of plug (1) with be provided with between shell (21) the inner wall with the corresponding bullet claw access way in position of bullet claw (22), be equipped with in the bullet claw access way with the recess of bellying (23) looks adaptation, be equipped with dog (24) on shell (21) inner wall, just the recess with dog (24) set up relatively, dog (24) are in slide so that bellying (23) are compressed tightly in the recess or break away from the recess under the drive of shell (21).

16. A cable termination, characterized in that it is arranged to secure a cable (3) in a connector according to any one of claims 1-15; the cable terminal (31) is provided with a plurality of bulges at intervals on one side surface facing the spring plate (13), and the surface of one side of the cable terminal (31) contacted with the spring plate (15) is a plane.

17. A base station system, comprising: a base station (8), a power supply (6), a cable (3), and a connector (7) according to any one of claims 1-15; one end of the cable (3) is connected with the power supply (6), the other end of the cable (3) is connected into the plug (1) of the connector (7) through a cable terminal (31), and the socket (2) of the connector (7) is connected with the base station (8).