CN210326265U

CN210326265U - Power supply connector

Info

Publication number: CN210326265U
Application number: CN201921217481.6U
Authority: CN
Inventors: 谢森荣
Original assignee: Amphenol Technology Zhuhai Co Ltd
Current assignee: Amphenol Technology Zhuhai Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-04-14
Anticipated expiration: 2029-07-29

Abstract

The utility model relates to the technical field of electric connectors, in particular to a power connector, which comprises a plug and a socket; the plug comprises a first shell and a locking assembly movably arranged on the first shell, a blind hole capable of containing the locking assembly is formed in the first shell, an elastic piece is arranged in the blind hole, one end of the elastic piece is connected with the bottom of the blind hole, the other end of the elastic piece is connected with the locking assembly, and the elastic piece is compressed in a normal state; the socket comprises a second shell, and one end of the second shell is provided with a step which can be clamped into the plug; the locking assembly comprises a blocking part, and the blocking part can move in the blind hole along with the locking assembly so as to be clamped with the step or separated from the step; the utility model discloses a power connector inserts the blind hole of plug with locking Assembly in, during socket and the plug connection, the step of socket can be crowded fender portion in order to promote locking Assembly to move towards the lining, and after the step crossed fender portion, locking Assembly kick-backs with the joint socket, guarantees that socket and plug are tightly stably connected.

Description

Power supply connector

Technical Field

The utility model relates to an electric connector technical field, in particular to power connector.

Background

Electrical connectors are the basic elements for electrical connection and signal transmission between devices, assemblies, systems and systems, and generally include sockets and plugs, which are widely used in various electrical lines; however, in the prior art, the fast locking structure between the plug and the socket mostly has the problems of more parts and complex assembly process, which results in high production cost of the electrical connector.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve one of the technical problems existing in the prior art, and provides a power connector, which comprises a plug and a socket; the plug comprises a first shell and a locking assembly movably arranged on the first shell, a blind hole capable of containing the locking assembly is formed in the first shell, an elastic piece is arranged in the blind hole, one end of the elastic piece is connected with the bottom of the blind hole, the other end of the elastic piece is connected with the locking assembly, and the elastic piece is compressed in a normal state; the socket comprises a second shell, and one end of the second shell is provided with a step which can be clamped into the plug; the locking assembly comprises a blocking part, and the blocking part can move in the blind hole along with the locking assembly to be clamped with the step or separated from the step.

As a further improvement of the above scheme, the blocking portion is provided with a first arc surface, and the first arc surface extends from a side of the blocking portion relatively close to the step to a side far away from the step.

As a further improvement of the above scheme, the blocking part is provided with a second cambered surface, and the second cambered surface extends from one side of the blocking part, which is relatively far away from the step, to one side of the blocking part, which is close to the step.

As a further improvement of the above scheme, the locking assembly includes a guide post and a baffle integrally formed with the guide post, the blocking portion is disposed on a side wall of the guide post, and opposite side surfaces between the blocking portion and the baffle are both inclined or concave arc-shaped.

As a further improvement of the above scheme, the blocking part is provided with an inclined plane and an arc surface, the inclined plane is connected with the arc surface in a smooth transition mode from top to bottom, the step is clamped in the first shell, and the inclined plane and the arc surface are abutted against the step.

As a further improvement of the above scheme, the step is provided with at least one notch, and the first housing is provided with a projection which can be inserted into the notch.

As a further improvement of the above scheme, the inner wall of the blind hole is provided with a first groove, the locking assembly comprises a guide pillar and a clamping block arranged on the guide pillar, the clamping block protrudes from the outer wall of the guide pillar, and the clamping block can slide in the first groove.

As a further improvement of the above scheme, an elastic member is arranged between the bottom of the blind hole and the locking assembly, and the elastic member is compressed in a normal state.

As a further improvement of the scheme, a second groove is formed in the outer wall of the guide pillar, and the fixture block is arranged in a gap with the bottom of the second groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a power connector inserts locking Assembly to the blind hole of plug in, and when the socket was connected with the plug, the step of socket can squeeze fender portion in order to promote locking Assembly to move inwards, and after the step crossed fender portion, locking Assembly kick-backed with the joint socket, guaranteed that socket and plug are tightly stably connected; secondly, the utility model discloses a seted up the blind hole on the plug, locking Assembly can the holding in the blind hole and remove along the blind hole, and locking Assembly need not to wear out from the plug and can regard as press switch to use, and then need not to increase the hole of process with installation locking Assembly on the shutoff plug, reduces locking Assembly's structure spare part quantity, reduces the production process of plug, promotes production efficiency, reduction in production cost.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is an exploded view of a plug according to an embodiment of the present invention;

fig. 2 is an exploded view of a socket according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a first housing according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a locking assembly according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of one side of a power connector according to an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of another side of a power connector according to an embodiment of the present invention;

FIG. 7 is an enlarged schematic view at A of FIG. 5;

fig. 8 is an enlarged schematic view at B in fig. 6.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

A plug of a power connector, as shown in FIG. 1 and FIG. 4, comprises a first housing 10 and a locking assembly 11 movably disposed on the first housing 10, a blind hole 101 capable of accommodating the locking assembly 11 is disposed on the first housing 10, a first groove 102 is disposed on an inner wall of the blind hole 101, the locking assembly 11 includes a guide post 111 and a latch 112 protruding from an outer wall of the guide post 111, the latch 112 is capable of being engaged into the first groove 102 and sliding along the first groove 102, specifically, an elastic member 12 is disposed on the blind hole 101, one end of the elastic member 12 is connected to a bottom of the blind hole 101, the other end is connected to the guide post 111, the elastic member 12 is compressed and pushes the latch 112 to engage with one end of the first groove 102 under normal state, in this embodiment, the elastic member 12 may be a spring commonly used in the market, the locking assembly 11 can move inwards along an axial line of the blind hole 101 in the blind hole 101 and can be reset due to an elastic restoring force of the elastic, meanwhile, the clamping block 112 is clamped at one end of the first groove 102 and cannot fall out of the blind hole 101; furthermore, the outer wall of the guide post 111 is further provided with a blocking portion 113, the blocking portion 113 can move in the blind hole 101 along with the guide post 111 to be clamped with the step 201, so that the plug is stably connected with the socket, and the blocking portion 113 can also move in the blind hole 101 along with the guide post 111 to be separated from the step 201, so that the plug can be conveniently pulled out from the socket.

As shown in fig. 2, the socket of a power connector includes a second housing 20 and a pin 21 disposed on the second housing 20, one end of the second housing 20 is provided with a step 201 capable of being clamped into a plug, further, the second housing 20 is further provided with a sealing ring 22 and a sealing rubber pad 23, the sealing ring 22 is disposed in an area between the pin 21 and the second housing 20, and the purpose of the sealing ring is to ensure waterproof and dustproof effects inside the socket; a boss 202 is arranged on the outer wall of the second housing 20, the boss 202 may be circular or square, a threaded hole or a through hole is formed in the boss 202, a bolt or a screw can pass through the boss 202 to fixedly mount the socket on the terminal device, and the sealing rubber gasket 23 is arranged in the area between the boss 202 and the terminal device, so as to ensure the waterproof and dustproof effects between the power connector and the terminal device; one end of the plug is provided with an isolating block 24 on the contact pin 21, the isolating block 24 can be inserted into the contact pin 21, when the plug is used, the isolating block 24 needs to be pulled out to realize connection between the plug and the socket, the isolating block 24 is used for preventing fingers from touching the contact terminals, the human body is prevented from being damaged due to conduction of the socket, and the phenomenon that the socket is not stable in conductive contact with the plug due to the fact that the human body touches the contact terminals to cause dampness can also be avoided.

As shown in fig. 6 and 8, the blocking portion 113 is provided with a first arc surface 1131, the first arc surface 1131 extends from a side of the blocking portion 113 relatively close to the step 201 away from the step 201, specifically, a protruding height of the first arc surface 1131 relatively close to the step 201 is smaller than a protruding height of the first arc surface 1131 relatively away from the step 201, that is, when the step 201 is inserted into the first casing 10 along with the second casing 20, the step 201 gradually presses the locking assembly 11 along the first arc surface 1131, so that the step 201 can continuously move toward the first casing 10 to pass over the blocking portion 113; preferably, the blocking portion 113 is provided with a second arc surface 1132, the second arc surface 1132 extends from a side of the blocking portion 113 relatively far from the step 201 to a side close to the step 201, specifically, a protrusion height of the second arc surface 1132 relatively far from the side of the step 201 is smaller than a protrusion height of the second arc surface 1132 relatively near to the side of the step 201, that is, when the step 201 is separated from the first housing 10 along with the second housing 20, the step 201 gradually presses the locking component 11 along the second arc surface 1132, so that the step 201 can continuously move outward of the first housing 10 to pass over the blocking portion 113.

As a further improvement of the above solution, as shown in fig. 1, the plug further includes a lug 13 fixed in the first housing 10 and a terminal 14 in contact connection with the lug 13, preferably, an axis of the terminal 14 is perpendicular to an axis of the lug 13, the pin 21 can be plugged onto the terminal 14 to achieve conductive connection between the plug and the socket, preferably, one end of the terminal 14 in contact with the pin 21 is provided with a first sealing ring 15 to ensure waterproof sealing between the pin 21 and the terminal 14; preferably, the sealing coil 16 is sleeved on one end of the lug plate 13, which is relatively exposed out of the first housing 10, the bee coil is sleeved with the rear housing 17, the rear housing 17 can be fixed with the first housing 10 through threaded connection, in particular, during use, the cable can be inserted or crimped to one end of the lug plate 13, then the rear housing 17 is screwed onto the first housing 10 to compress the cable and the lug plate 13, so as to ensure good contact between the cable and the lug plate 13, further, a second sealing ring 18 is further arranged between the rear housing 17 and the first housing 10, so as to ensure waterproof sealing performance between the rear housing 17 and the first housing 10.

As shown in fig. 3 and 4, the first groove 102 is rectangular, the end surface of the latch 112 relatively close to the inner wall of the blind hole 101 is arc-shaped, and the arc-shaped latch 112 is accommodated in the first groove 102, the arc is preferably concave arc-shaped, and the middle of the latch 112 is concave towards the axis of the guide post 111, i.e. the outer wall of the arc-shaped surface is concave inwards, the end surface of the latch 112 connected with the first groove 102 is vertical, the purpose is that, after the locking assembly 11 is inserted into the blind hole 101, the concave arc-shaped surface of the latch 112 is not contacted with the inner wall of the blind hole 101, the locking assembly 11 is more conveniently inserted into the blind hole 101, and after the locking assembly 11 moves towards the blind hole 101 and is pressed against the latch 112, the latch 112 is pressed against the inner wall of the blind hole 101 to generate elastic deformation towards the axis of the locking assembly 11, the locking assembly 11 is inserted into the vertical surface of the latch 112 and is clamped into the first groove 102, the latch 112 is separated, so that the latch 112 is completely clamped in the first groove 102, and at this time, the locking assembly 11 can be continuously inserted inwards, and when the locking assembly is pulled out outwards, the vertical surface of the latch 112 abuts against the end surface of the first groove 102 and cannot be taken out, so that the locking assembly 11 can be ensured to stably move in the blind hole 101.

As a further improvement of the above solution, as shown in fig. 4 and 7, a second groove 1111 is provided on an outer wall of the guide pillar 111, and the latch 112 is disposed at a gap from a bottom of the second groove 1111, specifically, the locking module 11 is inserted into the blind hole 101 so that the latch 112 is pressed against an inner wall of the blind hole 101, and the latch 112 can deform or move in a direction relatively close to an axis of the guide pillar 111, that is, the latch 112 can move toward the second groove 1111 to avoid the inner wall of the blind hole 101, so that the locking module 11 can be completely inserted into the blind hole 101; preferably, the latch 112 and the guide post 111 may be integrally formed, and both the latch 112 and the guide post 111 may be made of a plastic material with a certain elastic deformation capability.

As a further improvement of the above scheme, as shown in fig. 4 and fig. 5, the locking assembly 11 further includes a baffle 1112 integrally formed with the guide pillar 111, and the baffle 1112 can block the blind hole 101 and move in the blind hole 101, in this embodiment, the guide pillar 111 can move in the blind hole 101 only by inserting the locking assembly 11 into the blind hole 101, and the baffle 1112 is used to block the blind hole 101, so as to ensure a dustproof effect inside the plug; preferably, the baffle 1112 does not extend out of the blind hole 101 relatively from the end surface far away from the guide post 111, when the socket and the plug are used, the step 201 of the socket presses the stop portion 113 of the locking component 11 to drive the locking component 11 to move towards the blind hole 101, and after the socket and the plug are stably connected, the locking component 11 is reset due to the elastic restoring force of the elastic element 12; when the plug is required to be separated from the socket, the locking component 11 can be pressed, so that the locking component 11 moves towards the blind hole 101, and the blocking part 113 moves inwards along with the locking component 11 to be positioned on the step 201, so that the plug is separated from the socket; in a normal state, the baffle 1112 does not extend out of the blind hole 101, so that misoperation can be avoided, and quality accidents caused by the fact that the baffle 1112 is pressed to separate the plug from the socket are prevented.

As a further improvement of the above scheme, as shown in fig. 1 and fig. 4, the blocking portion 113 protrudes gradually from one end of the blocking plate 1112 to the other end, the blocking plate 1112 is disposed to be inclined relative to one end close to the blocking portion 113, that is, opposite side surfaces between the blocking portion 113 and the blocking plate 1112 are both disposed to be inclined or arc, at this time, a concave arc extending surface is formed between the blocking portion 113 and the blocking plate 1112, and the step 201 can move from the concave arc extending surface, and in particular, when in use, the step 201 gradually presses the blocking portion 113, so that the blocking portion 113 moves along the axial line direction of the guide pillar 111 to be away from or avoid the step 201, so that the step 201 can pass over the blocking portion 113, and the second housing 20 is stably connected to the first housing 10.

As a further improvement of the above solution, as shown in fig. 1, the fixture block 112 has at least two fixture blocks distributed on the sidewall of the guide post 111 along the circumferential direction, and further, there are three fixture blocks 112, and the blocking portion 113 and the three fixture blocks 112 are uniformly distributed on the sidewall of the guide post 111, the inner wall of the blind hole 101 is provided with three first grooves 102 matching with the three fixture blocks 112, and the sidewall of the blind hole 101 further extends to form an outward guide groove, in which the blocking portion 113 can move; furthermore, an annular groove 103 for accommodating the second housing 20 is formed in the first housing 10, the blind hole 101 is formed in a side portion of the annular groove 103, the stop portion 113 of the locking component 11 can protrude from a side wall of the annular groove 103 toward the center of the annular groove 103, the second housing 20 is inserted into the annular groove 103, and the step 201 can press the stop portion 113, so that the locking component 11 moves toward the blind hole 101 to enable the stop portion 113 to be located at the step 201.

As a further improvement of the above scheme, as shown in fig. 4, the blocking portion 113 is provided with an inclined surface 1133 and an arc surface 1134, the inclined surface 1133 is in smooth transition connection with the arc surface 1134 from top to bottom, the step 201 is clamped in the first housing 10, the inclined surface 1133 and the arc surface 1134 are abutted against the step 201, specifically, when the second housing 20 is inserted into the first housing 10, the step 201 is inserted into the first housing 10 along the inclined surface 1133, and the step 201 is abutted against the arc surface 1134, when the step 201 is inserted continuously, the step 201 is separated from the arc surface 1134, and the whole step 201 correspondingly falls into a position between the bottom of the annular groove 103 and the blocking portion 113.

As a further improvement of the above scheme, as shown in fig. 2, at least one notch 2011 is formed on the step 201, and a protrusion capable of being inserted into the notch 2011 is formed on the first housing 10, in this embodiment, two notches 2011 with different sizes are formed on the step 201, and a protrusion matched with the two notches 2011 is provided on the first housing 10, which aims to ensure that the plug and the socket are inserted at a certain angle, thereby avoiding the erroneous use of the plug and the socket.

As a further improvement of the above solution, as shown in fig. 5 and 7, the locking assembly 11 is provided with an inner cavity capable of accommodating the elastic member 12, the elastic member 12 is accommodated in the inner cavity and one end of the elastic member 12 protrudes out of the inner cavity, and the purpose of this is to increase the stroke of the elastic member 12 to increase the stroke of the locking assembly 11 in the blind hole 101, and also to make the internal structure of the plug compact.

In this embodiment, the locking assembly 11 is movably mounted in the first housing 10 through a self-locking structure of the latch 112 and the first groove 102, and there is no need to provide a through hole on the first housing 10 and use the separate baffle 1112 to block, which reduces the number of parts of the plug, and reduces the process of fixing the separate baffle 1112 on the first housing 10, reduces the assembly process, and improves the production efficiency.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.

Claims

1. A power connector, comprising a plug and a socket;

the plug comprises a first shell (10) and a locking assembly (11) movably arranged on the first shell (10), a blind hole (101) capable of containing the locking assembly (11) is formed in the first shell (10), an elastic piece (12) is arranged in the blind hole (101), one end of the elastic piece (12) is connected with the bottom of the blind hole (101), the other end of the elastic piece is connected with the locking assembly (11), and the elastic piece (12) is compressed in a normal state;

the socket comprises a second shell (20), wherein one end of the second shell (20) is provided with a step (201) which can be clamped into the plug;

the locking assembly (11) comprises a blocking part (113), and the blocking part (113) can move in the blind hole (101) along with the locking assembly (11) to clamp the step (201) or be separated from the step (201).

2. A power connector as claimed in claim 1, characterized in that the blocking portion (113) is provided with a first arc surface (1131), and the first arc surface (1131) extends from a side of the blocking portion (113) relatively close to the step (201) to a side far away from the step (201).

3. A power supply connector as claimed in claim 1 or 2, characterized in that the blocking portion (113) is provided with a second arc surface (1132), and the second arc surface (1132) extends from a side of the blocking portion (113) relatively far from the step (201) to a side close to the step (201).

4. A power supply connector according to claim 1, wherein the locking assembly (11) comprises a guide post (111) and a baffle (1112) integrally formed with the guide post (111), the stop (113) is disposed on a side wall of the guide post (111), and opposite side surfaces between the stop (113) and the baffle (1112) are inclined or concave-arc-shaped.

5. The power connector as claimed in claim 4, wherein the stopper (113) is provided with an inclined surface (1133) and an arc surface (1134), the inclined surface (1133) is connected with the arc surface (1134) in a smooth transition manner from top to bottom, the step (201) is clamped in the first housing (10), and the inclined surface (1133) and the arc surface (1134) are abutted against each other corresponding to the step (201).

6. A power connector as claimed in claim 1, wherein the step (201) has at least one notch (2011), and the first housing (10) has a protrusion which can be inserted into the notch (2011).

7. The power connector according to claim 1, wherein the inner wall of the blind hole (101) is provided with a first groove (102), the locking assembly (11) comprises a guide pillar (111) and a latch (112) arranged on the guide pillar (111), the latch (112) protrudes from the outer wall of the guide pillar (111), and the latch (112) can slide in the first groove (102).

8. A supply connector as claimed in claim 1 or 7, characterized in that a resilient member (12) is arranged between the bottom of the blind hole (101) and the locking assembly (11), the resilient member (12) being normally compressed.

9. The power connector as claimed in claim 7, wherein the outer wall of the guide post (111) is provided with a second groove (1111), and the latch (112) is spaced apart from the bottom of the second groove (1111).