CN218867453U - Protection component, female plug and electric connector - Google Patents

Abstract

The utility model provides a protection component, female plug and electric connector, protection component is used for female plug, the jack has been seted up to female terminal of female plug, protection component includes insulating guide pillar, insulating guide pillar is connected with the diapire of jack, it connects the plug clearance to have between the inner peripheral wall of insulating guide pillar and jack, the space of jack has been reduced, positions such as people's hand are difficult for stretching into in the jack with the contact of the inner peripheral wall of female terminal, thereby insulation protection has been played, can realize the effect of protection against electric shock, the foreign matter that also can prevent simultaneously that the size from being greater than to connect the plug clearance invades the jack and causes female plug's damage, realize the simple structure of above-mentioned function, the volume can reduce, can be convenient for the miniaturization of product.

Description

Protection component, female plug and electric connector

Technical Field

The utility model relates to an electric connector technical field, concretely relates to protection component, female plug and electric connector.

Background

Electrical connectors are commonly used electrical components for electrical connection between devices. An electrical connector generally includes a male plug and a female plug, the female plug having a jack, and the male plug being inserted into the jack of the female plug to make electrical connection. Under the normal condition, the jack of female plug is electrified, leads to the jack to electrocute easily and foreign matter invades the jack, has the potential safety hazard.

At present, most of electric connectors are difficult to solve the problems, and the solutions which can be solved by few methods have the defects of complex structure and large volume.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a protection component, female plug and electric connector solve the problem that the jack electrocuted and the foreign matter invaded.

For realizing the purpose of the utility model, the utility model provides a following technical scheme:

in a first aspect, the utility model provides a protection component for female plug, the jack has been seted up to female terminal of female plug, protection component includes insulating guide pillar, insulating guide pillar with the diapire of jack is connected, insulating guide pillar with connect the plug clearance to have between the interior week lateral wall of jack.

In one embodiment, a mating hole is formed in the bottom wall of the insertion hole, a mating portion is arranged at one end of the insulating guide pillar, and the mating portion is connected with the mating hole in a mating manner.

In one embodiment, an end face of one end of the insulating guide pillar, which is far away from the bottom wall of the insertion hole, is provided with a mounting portion, and the mounting portion is used for being matched with a mounting tool to connect and fix the insulating guide pillar with the bottom wall of the insertion hole.

In one embodiment, the protection assembly further includes a first elastic element and an insulating blocking piece, the first elastic element and the insulating blocking piece are both sleeved on the insulating guide post, one end of the first elastic element abuts against the bottom wall of the jack, the other end of the first elastic element abuts against the insulating blocking piece, and the opening of the jack is covered by the insulating blocking piece to shield at least part of the plugging gap.

In one embodiment, the insulating guide pillar is provided with a blocking portion at an opening corresponding to the insertion hole, and a side of the insulating blocking piece, which faces away from the first elastic piece, abuts against the blocking portion.

In a second aspect, the present invention further provides a female plug, wherein a jack has been provided in a female terminal of the female plug, and a protection component is provided in the jack, in any one of various embodiments of the first aspect.

A third aspect of the present invention provides an electrical connector, including male plug and female plug, the jack has been seted up to female terminal of female plug, the jack is provided with any one of the various embodiments of the first aspect protection component, the accepting hole has been seted up to male terminal of male plug, male terminal is used for inserting connect the plug clearance, the accepting hole is used for acceping protection component's insulating guide pillar, male terminal's peripheral surface with the interior circumference lateral wall electricity of jack is connected.

In one embodiment, the female plug further includes a first insulating housing, the first insulating housing defines a first receiving hole, the female terminal is received in the first receiving hole, the female terminal defines the jack, and the jack is exposed from the first receiving hole; the male plug further comprises a second insulating shell, a second accommodating hole is formed in the second insulating shell, the male terminal is accommodated in the second accommodating hole, the accommodating hole is exposed out of the second accommodating hole, and an accommodating gap is formed between the outer peripheral surface of the male terminal and the inner peripheral side wall of the second accommodating hole.

In one embodiment, the female plug further includes a second elastic member, a second mounting groove is formed in an inner peripheral side wall of the insertion hole, the second elastic member is accommodated in the second mounting groove, and the second elastic member abuts against a bottom wall of the second mounting groove and an outer peripheral surface of the male terminal.

In one embodiment, the first accommodating hole is a through hole, a first mounting groove is formed in an inner peripheral wall surface of the first accommodating hole, a first shoulder is arranged on an outer periphery of the female terminal, and the first shoulder is accommodated in the first mounting groove; the female plug further comprises a gluing piece, the gluing piece is filled in the gap between the outer peripheral surface of the female terminal and the first mounting groove, and two side faces, back on the back, of the first shaft shoulder in the axial direction are respectively in contact with the side wall of the first mounting groove and the gluing piece.

In one embodiment, an end portion of the first insulating housing is provided with a ledge extending toward the first receiving hole, and at least a part of the female terminal is shielded in an axial direction by the ledge.

The bottom wall of the jack through insulating guide pillar and female plug is connected, connect the plug clearance between the inner peripheral wall of insulating guide pillar and female terminal, the space of jack has been reduced, the position such as people's hand is difficult for stretching into in the jack and the contact of the inner peripheral wall of female terminal, thereby insulation protection has been played, the effect of protection against electric shock can be realized, the foreign matter that also can prevent the size from being greater than to connect the plug clearance simultaneously invades the jack and causes the damage of female plug, realize the simple structure of above-mentioned function, the volume can reduce, the miniaturization of the product of can being convenient for.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of an electrical connector of one embodiment;

FIG. 2 is an exploded view of a portion of the structure of one embodiment of a female plug;

FIG. 3 is an exploded view of a portion of the structure of one embodiment of a female plug;

fig. 4 is a cross-sectional view of a female terminal of one embodiment;

FIG. 5 is a perspective view of an embodiment of an insulating guide post;

FIG. 6 is an exploded view of a male plug of one embodiment;

FIG. 7 is a cross-sectional view of a male terminal of one embodiment;

FIG. 8 is a cross-sectional view of one embodiment of an electrical connector prior to mating;

figure 9 is a cross-sectional view of one embodiment of an electrical connector mated for insertion.

Description of reference numerals:

10-female plug, 11-first insulating housing, 111-first insulating sleeve, 112-first accommodating hole, 113-first mounting groove, 114-platform, 115-first fixing part, 116-first fixing hole, 12-female terminal, 121-jack part, 122-jack, 123-bottom wall, 124-mating hole, 125-second mounting groove, 126-first wiring part, 127-first wiring hole, 128-first shaft shoulder, 101-plugging gap, 13-insulating guide post, 131-column, 132-blocking part, 133-mating part, 134-mounting part, 14-second elastic part, 15-first elastic part, 16-insulating blocking piece, 17-glue joint part;

20-male plug, 21-second insulation shell, 211-second insulation sleeve, 212-second containing hole, 213-second fixing part, 214-second fixing hole, 22-male terminal, 221-plug part, 222-containing hole, 223-second wiring part, 224-second wiring hole, 225-second shoulder and 201-containing gap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1, an embodiment of the present invention provides an electrical connector, which includes a female plug 10 and a male plug 20.

Referring to fig. 2, fig. 3 and fig. 8, the female terminal 12 of the female plug 10 is opened with a jack 122, and the male terminal 22 of the male plug 20 is inserted into the jack 122 to be inserted into the female plug 10.

Optionally, female plug 10 includes a first insulating housing 11 and female terminals 12. The first insulating housing 11 has a first accommodating hole 112, and the female terminal 12 is accommodated in the first accommodating hole 112.

The first insulating housing 11 is made of an insulating material, and may be made of a plastic material. The shape and structure of the first insulating case 11 may not be limited. The first accommodating hole 112 is a through hole, and the first accommodating hole 112 is opened at two opposite ends of the first insulating housing 11, and the female terminal 12 extends into the first accommodating hole 112 from an opening at one end of the first insulating housing 11 and does not exceed an opening at the other end of the first insulating housing 11.

Referring to fig. 4 and 8, the female terminal 12 is provided with an insertion hole 122, and the insertion hole 122 is communicated with the outside through the first receiving hole 112.

The female terminal 12 is made of a conductive material, such as aluminum or copper. The female terminal 12 is substantially rod-shaped, and an insertion hole 122 is formed in an end surface of one end in the longitudinal direction thereof. The receptacle 122 is a blind hole with an open end, and the bottom wall 123 of the receptacle 122 faces the open end.

Since the insertion hole 122 of the female terminal 12 is exposed with an opening at one end, and the female terminal 12 is made of a conductive material and usually electrified, the insertion hole 122 is easily electrically shocked and foreign matters are easily intruded into the insertion hole 122.

In this regard, the present embodiments further improve upon providing a shield assembly for a female plug 10. The shielding assembly comprises an insulating guide post 13, the insulating guide post 13 is connected with the bottom wall 123 of the insertion hole 122, and a plug-in gap 101 is formed between the insulating guide post 13 and the inner peripheral side wall of the female terminal 12.

The insulating guide posts 13 are columnar and made of an insulating material, such as plastic. One end of the insulating guide post 13 is connected to the bottom wall 123 of the insertion hole 122 in any feasible manner, such as screwing, clamping, and bonding. The insulating guide post 13 is attached to a middle region of the bottom wall 123 of the insertion hole 122, and the insulating guide post 13 is substantially perpendicular to the bottom wall 123. The inner peripheral side wall of the insertion hole 122 and the insulating guide post 13 are provided with an insertion gap 101, and the insertion gap 101 is used for being inserted into the male plug 20. The end of the insulating guide post 13 remote from the bottom wall 123 of the receptacle 122 is generally flush with the opening of the receptacle 122 and may extend slightly beyond the opening of the receptacle 122 or retract into the opening of the receptacle 122.

In the embodiment where the female plug 10 has the first insulating housing 11, the first insulating housing 11 provides insulation protection at the outer periphery of the female terminal 12.

In other embodiments, female plug 10 is not limited to the structure of first insulating housing 11 and female terminal 12.

In other embodiments, any female plug with a jack can be provided with the protection assembly of the embodiment of the present application.

Optionally, the protection component and the female plug 10 of the embodiment of the present application are detachably connected, so that the protection component can be an independent structure, can be manufactured separately and replaced, reduces the manufacturing difficulty of the female plug 10, and improves the maintainability.

In other embodiments, the protection component may be integrated with the female plug 10, and for a non-detachable structure, the operation of installing the protection component to the female plug 10 in a later period may be reduced, and the overall structure of the female plug 10 and the protection component is more stable.

The insulating guide post 13 is arranged in the jack 122, the insulating guide post 13 shields at least part of the space of the opening of the jack 122, only the plugging gap 101 is reserved, the function of plugging the male plug 20 is met, meanwhile, the space of the jack 122 is reduced, the hand and other parts of a person are not easy to stretch into the jack 122 to be contacted with the inner peripheral side wall of the female terminal 12, thus insulation protection is achieved, the electric shock prevention effect can be realized, and meanwhile, foreign matters with the size larger than the plugging gap 101 can be prevented from invading the jack 122 to cause the damage of the electric connector.

Alternatively, referring to fig. 6 and 7, the male plug 20 includes a second insulating housing 21 and a male terminal 22. The second insulating housing 21 has a second receiving hole 212, the male terminal 22 is received in the second receiving hole 212, and the male terminal 22 has a receiving hole 222.

The second insulating housing 21 is made of an insulating material, and may be made of a plastic material. The shape and structure of the second insulating case 21 may not be limited. The second accommodating hole 212 is a through hole, the second accommodating hole 212 is opened at two opposite ends of the second insulating housing 21, and the male terminal 22 extends into the second accommodating hole 212 from the opening at one end of the second insulating housing 21 and does not exceed the opening at the other end of the second insulating housing 21.

The male terminal 22 is made of conductive material, and can be made of metal, such as aluminum, copper, etc. The male terminal 22 is substantially rod-shaped, and an end surface of one end in the longitudinal direction thereof is provided with a receiving hole 222. The receiving hole 222 is a blind hole, and one end thereof is open.

Since the second insulating housing 21 is provided, the outer periphery of the male terminal 22 is protected from insulation, and electric shock can be prevented from occurring on the outer periphery of the male terminal 22.

Referring to fig. 8, the receiving hole 222 communicates with the outside through the second receiving hole 212, and the outer peripheral surface of the male terminal 22 and the inner peripheral sidewall of the second receiving hole 212 have a receiving gap 201.

The male terminal 22 is located at the middle of the second accommodating hole 212, and the outer peripheral surface of the male terminal 22 and the inner peripheral sidewall of the second accommodating hole 212 have an accommodating gap 201.

Referring to fig. 8 and 9, when the female plug 10 is inserted into the male plug 20, the male terminal 22 is inserted into the insertion gap 101, the outer peripheral surface of the male terminal 22 is electrically connected to the inner peripheral sidewall of the female terminal 12, and the insulating guide 13 is inserted into the receiving hole 222.

Meanwhile, the female terminal 12 and the first insulating housing 11 are inserted into the accommodation gap 201, that is, the outer peripheral surface of the first insulating housing 11 faces the inner peripheral side wall of the second insulating housing 21, and the inner peripheral side wall of the female terminal 12 faces the outer peripheral surface of the male terminal 22.

Alternatively, the outer peripheral surface of the first insulating housing 11 is in contact with the inner peripheral sidewall of the second insulating housing 21, and the inner peripheral sidewall of the female terminal 12 is in contact with the outer peripheral surface of the male terminal 22, so that the mutual insertion is realized.

Alternatively, the female plug 10 and the male plug 20 may be provided with elastic members to electrically connect the two plugs.

Specifically, the second elastic member 14 may be disposed on the inner peripheral sidewall of the insertion hole 122 of the female terminal 12 of the female plug 10, and/or the elastic member may be disposed on the outer periphery of the male terminal 22 of the male plug 20, and the second elastic member 14 abuts against the outer periphery of the male terminal 22, or the outer periphery of the male terminal 22 abuts against the inner peripheral sidewall of the insertion hole 122 of the female terminal 12, so as to achieve electrical connection.

Optionally, the insulating guide post 13 and the inner peripheral sidewall of the receiving hole 222 have a certain gap without contacting, so that the insulating guide post 13 is easily inserted into the receiving hole 222, the insertion operation is easy, and the insertion cannot be performed due to interference.

Alternatively, the insulating guide 13 may be in contact with the inner circumferential side wall of the receiving hole 222 as long as the insulating guide 13 can be inserted into the receiving hole 222.

The mutual insertion between the male plug 20 and the female plug 10 may also be in other manners, and the embodiments of the present invention are not limited.

The embodiment of the utility model provides a protection component is connected through the diapire of insulating guide pillar 13 with female plug 10's jack 122, have between the interior circumference wall of insulating guide pillar 13 and female terminal 12 and connect clearance 101, the space of jack 122 has been reduced, positions such as people's hand are difficult for stretching into in jack 122 with the interior circumference wall contact of female terminal 12, thereby insulation protection has been played, the effect of protection against electric shock can be realized, the foreign matter that the size is greater than to connect and connects clearance 101 also can be prevented simultaneously and the damage that jack 122 caused female plug 10 is invaded. The structure for realizing the functions is simple, the size can be reduced, and the miniaturization of the product can be facilitated.

Optionally, referring to fig. 3 to fig. 5 and fig. 8, the bottom wall 123 of the insertion hole 122 is provided with a matching hole 124, one end of the insulating guide pillar 13 is provided with a matching portion 133, and the matching portion 133 is connected to the matching hole 124 in a matching manner.

Referring to fig. 3 and 5, the insulating guide pillar 13 includes a cylindrical body 131 and a matching portion 133, the cylindrical body 131 is in a shape of a long cylindrical rod and includes two opposite ends, and one end of the cylindrical body is provided with the matching portion 133. The fitting portion 133 and the cylinder 131 may be coaxially disposed in an integral structure, and the diameter of the fitting portion 133 is smaller than that of the cylinder 131, so that at least a portion of an end surface of the cylinder 131 connected to the fitting portion 133 is exposed, and the exposed end surface protrudes from an outer peripheral surface of the fitting portion 133 to form a structure similar to a shoulder. The engaging portion 133 is, for example, a stud.

Referring to fig. 4, the matching holes 124 are, for example, screw holes. Referring to fig. 8, the insulating guide post 13 extends into the insertion hole 122, and the stud of the matching portion 133 is matched with the screw hole of the matching hole 124, and the insulating guide post 13 is screwed, so that the insulating guide post 13 is connected with the bottom wall 123 of the insertion hole 122.

When the end surface of the post 131 connected to the mating portion 133 contacts the bottom wall 123 of the receptacle 122 during tightening of the insulating guide post 13, the tightening is not possible, indicating that the installation is in place. By the arrangement, the installation, fixation and positioning of the insulating guide pillar 13 and the bottom wall 123 of the insertion hole 122 are realized.

Alternatively, referring to fig. 5 and 8, an end surface of the end of the insulating guide post 13 away from the bottom wall 123 of the insertion hole 122 is provided with a mounting portion 134, and the mounting portion 134 is used for cooperating with a mounting tool (not shown) to connect and fix the insulating guide post 13 and the female terminal 12.

Specifically, the end surface of the column 131 facing away from the end of the fitting portion 133 is provided with the mounting portion 134. The mounting portion 134 may be a recess, a protrusion, etc., for example, the mounting portion 134 may be a recess in the shape of "-", "+", or a hexagon socket, etc. The mounting tool is, for example, a screwdriver, an allen wrench, etc., without limitation.

In one embodiment, referring to fig. 3, 8 and 9, the protection assembly further includes a first elastic member 15 and an insulating barrier 16. The first elastic member 15 and the insulating stopper 16 are both sleeved on the insulating guide post 13, one end of the first elastic member 15 abuts against the bottom wall 123 of the insertion hole 122, and the other end abuts against the insulating stopper 16. The insulating shutter 16 blocks at least a part of the insertion gap 101 at the opening of the insertion hole 122.

The first elastic element 15 may be a spring, or other structures, and the material may be metal, plastic, or other materials, without limitation. Taking the first elastic member 15 as a spring as an example, the first elastic member 15 is sleeved on the outer periphery of the insulating guide pillar 13. The insulating barrier 16 is made of an insulating material, such as plastic. The insulation blocking piece 16 may or may not be fixed to the end of the first elastic member 15. The insulation barrier 16 can be opened with a through hole through which the insulation guide post 13 passes. The end of the first elastic member 15 away from the insulating barrier 16 may or may not be connected to the bottom wall 123 of the insertion hole 122. When the insertion hole 122 is a circular hole, the insulating blocking piece 16 may be a circular sheet structure, and the diameter of the insulating blocking piece 16 is larger than the diameter of the insulating guide pillar 13 and smaller than the inner diameter of the insertion hole 122. Specifically, the diameter of the insulating barrier 16 is larger than the diameter of the blocking portion 132 of the insulating guide post 13 and smaller than the inner diameter of the insertion hole 122, so that the insulating barrier 16 can block at least part of the insertion gap 101.

When the male plug 20 is not inserted into the female plug 10, a part of the opening of the female terminal 12 of the female plug 10 is shielded by the insulating guide pillar 13, and at least a part of the opening is shielded by the insulating barrier 16, so that the female terminal 12 is further protected against electric shock and foreign matter. When the male plug 20 is inserted into the female plug 10, the male terminal 22 pushes the insulation stop 16 to move toward the bottom wall 123 of the insertion hole 122, and the first elastic member 15 is elastically compressed.

Optionally, referring to fig. 3, fig. 5 and fig. 8, the insulating guide pillar 13 is provided with a stopper 132 at the opening corresponding to the insertion hole 122, and one side of the insulating barrier 16 facing away from the first elastic element 15 abuts against the stopper 132.

Specifically, the blocking portion 132 protrudes from the outer circumferential surface of the cylinder 131, and may be disposed around the cylinder 131 in the circumferential direction. The stopper 132 functions to limit the position of the insulating shutter 16 in the axial direction of the insertion hole 122. The diameter of the blocking portion 132 is smaller than or equal to the inner diameter of the receiving hole 222 so that the insulation guide post 13 can protrude into the receiving hole 222.

When the male plug 20 is not plugged into the female plug 10, the first elastic member 15 may be in a compressed state, and under the elastic abutting action, a side surface of the insulating barrier 16 facing away from the first elastic member 15 is always in contact with the blocking portion 132, so that the protection effect of the insulating barrier 16 on the opening of the insertion hole 122 is stable and reliable. Alternatively, referring to fig. 2 to 4 and 8, the female terminal 12 includes a socket portion 121 and a first wire connecting portion 126, the socket portion 121 is located in the first insulating housing 11, and the first wire connecting portion 126 extends out of the first insulating housing 11.

Specifically, the socket portion 121 is substantially cylindrical, and a socket 122 is formed on an end surface of one axial end thereof, and the socket 122 is a blind hole and does not penetrate through an end surface of the opposite end. The first wire connecting portion 126 is connected to an end surface of the other end of the jack portion 121. The first wire connecting portion 126 is, for example, a bar shape, is connected to the middle of the insertion hole portion 121, and may be an integral structure integrally formed with the insertion hole portion 121. The first insulating housing 11 may enclose all of the insertion hole portion 121 and a portion of the first wire connecting portion 126, and it should be ensured that at least a portion of the first wire connecting portion 126 is exposed for connection with an external wire (not shown).

The first wiring portion 126 may be formed with a first wiring hole 127, and the first wiring hole 127 is used for being connected and fixed with a conductive wire. The outer circumference of the wires is typically wrapped with an insulating glue layer (not shown) that wraps the wires and the first wire connecting portion 126 to form a complete wire connection cable.

Alternatively, referring to fig. 6 to 8, the male terminal 22 includes a patch part 221 and a second wire connecting part 223, the patch part 221 is located in the second insulating housing 21, and the second wire connecting part 223 protrudes out of the second insulating housing 21.

The plug portion 221 is substantially cylindrical, and an end face of one axial end thereof is provided with a receiving hole 222, and the receiving hole 222 is a blind hole and does not penetrate through an end face of the opposite end. The second wire connecting portion 223 is connected to an end face of the other end of the patch portion 221. The second wire connecting portion 223 is, for example, a strip shape, is connected to the middle of the patch portion 221, and may be an integral structure integrally formed with the patch portion 221. The second insulating housing 21 may enclose all of the patch portion 221 and a portion of the second wire portion 223, and it should be ensured that at least a portion of the second wire portion 223 is exposed for connection with an external wire (not shown).

The second wire connecting portion 223 may be provided with a second wire connecting hole 224, and the second wire connecting hole 224 is used for being connected and fixed with a wire. The outer circumference of the wire is typically wrapped with an insulating glue layer (not shown) that wraps the wire and the second wire connecting portion 223, thereby forming a complete wire connection cable.

The first wire connecting portion 126 and the second wire connecting portion 223 are connected to different wire cables, and the other ends of the two wire cables are connected to different devices, so that when the jack portion 121 and the plug portion 221 are electrically connected, electrical connection between the devices can be achieved.

Alternatively, referring to fig. 2 and 8, the first insulation case 11 includes a first insulation cover 111 and a first fixing portion 115. The first insulating sleeve 111 is substantially sleeve-shaped, the first accommodating hole 112 is opened on the first insulating sleeve 111, and the first fixing portion 115 is disposed on the outer periphery of the first insulating sleeve 111. The first fixing portion 115 is substantially plate-shaped, a first fixing hole 116 may be formed in the first fixing portion 115, the number of the first fixing holes 116 may be multiple, and the first fixing portion 115 may be used for fixing with a device. The first fixing portion 115 is fixed to the device by, for example, a screw fitting with the first fixing hole 116, thereby fixing the female plug 10 to the device. The first fixing portion 115 and the first insulating sleeve 111 may be an integral structure.

Alternatively, referring to fig. 6 and 8, the second insulating housing 21 includes a second insulating sleeve 211 and a second fixing portion 213. The second insulating cover 211 is substantially sleeve-shaped, the second receiving hole 212 is opened in the second insulating cover 211, and the second fixing portion 213 is disposed on the outer periphery of the second insulating cover 211. The second fixing portion 213 is substantially plate-shaped, the second fixing portion 213 may be opened with a plurality of second fixing holes 214, and the second fixing portion 213 may be used to fix the device. The male plug 20 is fixed to another device by fixing the second fixing portion 213 to the other device by fitting a screw to the second fixing hole 214, for example. The second fixing portion 213 and the second insulating sleeve 211 may be an integral structure.

Optionally, referring to fig. 8, an end of the first insulating housing 11 is provided with an edge stand 114 extending to the first accommodating hole 112 side, and at least a part of the female terminal 12 is shielded by the edge stand 114 in the axial direction.

Specifically, the platform 114 is substantially annular, protruding from the inner peripheral side wall of the first accommodation hole 112 at the end of the first insulation sleeve 111. With this arrangement, the rim plate 114 can axially limit the insertion hole 121. Alternatively, the width of the rim 114, i.e., the height of the rim 114 protruding from the inner circumferential side wall of the first receiving hole 112, may be substantially equal to the wall thickness of the insertion hole portion 121, i.e., the thickness between the outer circumferential surface and the inner circumferential side wall of the insertion hole portion 121. In this way, the rim 114 also shields the insertion hole portion 121 at the opening of the first accommodating hole 112, so as to prevent the end portion of the insertion hole portion 121 from being exposed to the outside and easily causing electric shock. Of course, in practical applications, the height of the inner peripheral side wall of the first receiving hole 112 and the wall thickness of the insertion hole portion 121 may be different, and are not intended to limit the present application.

It can be understood that, taking a battery-replaceable vehicle as an example, the female plug 10 is usually connected to a battery, the male plug 20 is usually disposed on a charging pile or a vehicle, and since the female plug 10 is connected to the battery and is always electrified, it is very important to protect the female terminal 12 of the female plug 10 from electric shock. In general, the male terminal 22 is not always electrified, so the requirement of preventing electric shock for the male plug 20 can be slightly lower. For example, as shown in fig. 8, the second insulating housing 21 may not have a platform 114 similar to that of the first insulating housing 11, and the end of the second insulating sleeve 211 may be slightly protruded from the corresponding end of the patch portion 221, so that the patch portion 221 is entirely within the second receiving hole 212.

Optionally, referring to fig. 8, the second insulating housing 21 and the male terminal 22 are an integral structure. Specifically, the male terminal 22 is made of metal, and can be processed first, and then the male terminal 22 is placed in a mold to be injection-molded into the second insulating housing 21, and the structure in which the male terminal 22 is embedded in the second insulating housing 21 is formed after the mold is removed. The structural stability of integral type structure is good, and structural strength is high, can satisfy the stable in structure of frequent plug and pull and longer life's requirement.

Optionally, the second shoulder 225 is disposed on the periphery of the insertion hole portion 121 of the male terminal 22, the second shoulder 225 may be one-step or two-step, and when the male terminal 22 is placed in a mold for injection molding, the second shoulder 225 is embedded in an injection molding material, as shown in fig. 8, the second shoulder 225 is located inside the second insulating housing 21, so that the connection stability between structures can be increased, and the reliability and the service life of the connector can be improved.

Optionally, referring to fig. 2, fig. 3 and fig. 8, the inner peripheral wall surface of the first accommodating hole 112 is provided with a first mounting groove 113. The first shoulder 128 is disposed on the outer periphery of the female terminal 12, and the first shoulder 128 is received in the first receiving groove 113. The first mounting groove 113 is located on a side of the first insulating housing 11 away from the male plug 20 and extends to an opening of the first accommodating hole 112. The second mounting groove 125 may be an annular groove, the first receiving hole 112 may be a circular hole, and the diameter of the second mounting groove 125 is larger than the diameter of the first receiving hole 112, so that the first shoulder 128 may extend into and be received in the second mounting groove 125, thereby facilitating the female terminal 12 to be inserted into the first receiving hole 112 from a side far from the male plug 20. The first shoulder 128 of the female terminal 12 contacts the side wall of the first mounting groove 113, and positioning and fixing of the female terminal 12 on one side in the axial direction of the first receiving hole 112 can be achieved.

The female plug 10 further includes a glue member 17, the glue member 17 fills a gap between the outer peripheral surface of the female terminal 12 and the first mounting groove 113, and two side surfaces of the first shoulder 128, which are axially opposite to each other, are respectively in contact with the side wall of the first mounting groove 113 and the glue member 17.

The adhesive member 17 is, for example, an epoxy resin adhesive, and after the adhesive member 17 is filled, the adhesive member 17 adhesively fixes the first insulating housing 11 and the female terminal 12, so as to position and fix the female terminal 12 on the other side in the axial direction of the first accommodating hole 112.

In one embodiment, referring to fig. 3, 8 and 9, the female plug 10 further includes a second elastic member 14. The inner peripheral sidewall of the insertion hole 122 is formed with a second mounting groove 125, and the second elastic element 14 is received in the second mounting groove 125. After the female plug 10 and the male plug 20 are inserted into each other, the second elastic member 14 abuts against the bottom wall 123 of the second mounting groove 125 and the outer peripheral surface of the male terminal 22.

The second elastic element 14 may be a spring, or the like. Taking the second elastic member 14 as a spring as an example, the second elastic member 14 extends spirally and then forms a ring shape end to end, the second mounting groove 125 is a ring-shaped groove extending along the circumferential direction of the insertion hole 122, and the second elastic member 14 is accommodated in the second mounting groove 125. The two opposite side walls of the second mounting groove 125 define an axial limit of the insertion hole 122 for the second elastic member 14, and the bottom wall 123 of the second mounting groove 125 defines a radial limit of the insertion hole 122 for the second elastic member 14. When the male plug 20 is not inserted into the female plug 10, the second elastic member 14 has a larger size in the radial direction of the insertion hole 122 in a natural state. After the male plug 20 is inserted into the female plug 10, the outer peripheral surface of the male terminal 22 presses the second elastic member 14 to be elastically deformed, so that the size of the second elastic member 14 in the radial direction of the insertion hole 122 is reduced, that is, the second elastic member 14 is "crushed", so that the second elastic member 14 abuts against the bottom wall 123 of the second mounting groove 125 and the outer peripheral surface of the male terminal 22.

The second elastic member 14 is made of metal, such as copper, aluminum, etc., and by providing the second elastic member 14, the second elastic member 14 elastically abuts against the bottom wall 123 of the second mounting groove 125 and the outer peripheral surface of the male terminal 22, so that the male terminal 22 and the female terminal 12 are always electrically connected through the second elastic member 14, and the requirement of stable electrical connection performance is met. In addition, the elastic pressure between the second elastic member 14 and the outer circumferential surface of the male terminal 22 can increase the friction force therebetween, so that the connection stability of the female plug 10 and the male plug 20 in the axial direction can be enhanced.

In another embodiment, an elastic member may be provided on the outer periphery of the male terminal 22 of the male plug 20, and the elastic member may be brought into contact with the inner peripheral side wall of the insertion hole 122 of the female plug 10 to realize electrical connection. The elastic element can be a spring, a spring plate, a spring needle and the like without limitation.

Referring to fig. 1 to 9, based on the same inventive concept of the above embodiments, an embodiment of the present invention further provides a female plug 10, wherein the female terminal 12 of the female plug 10 is provided with a jack 122, and the jack 122 is internally provided with a protection component according to any embodiment of the present application. The female plug can prevent the jack from being electrically shocked and foreign matters from invading the jack, and has simple structure and small volume.

The embodiment of the utility model provides an electric connector sets up the protection component through jack 122 at female plug 10, plays the effect that prevents to electrocute and prevent the foreign matter invasion in jack 122.

By providing the first insulating housing 11 and the insulating guide posts 13, the first insulating housing 11 protects the outer peripheral surface of the female terminal 12 from being electrically contacted with the outer periphery of the female terminal 12. By providing the second insulating case 21 to protect the outer peripheral surface of the male terminal 22 from insulation, electric shock with the outer periphery of the male terminal 22 can be prevented. Due to the fact that the inserting gap 101 and the accommodating gap 201 are arranged, the female plug 10 and the male plug 20 can be inserted in a butting mode, the female terminal 12 can be electrically connected with the male terminal 22, the functions are achieved, the structure is simple, the size can be reduced, and miniaturization of products can be facilitated.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other indexes have orientations or positional relationships based on the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made without departing from the spirit and scope of the invention.

Claims (10)

1. The protection assembly is used for a female plug, a female terminal of the female plug is provided with a jack, and the protection assembly is characterized by comprising an insulating guide pillar, the insulating guide pillar is connected with the bottom wall of the jack, and a plug-in gap is formed between the insulating guide pillar and the inner peripheral side wall of the jack.

2. The protective assembly according to claim 1, wherein the bottom wall of the insertion hole is provided with a fitting hole, and one end of the insulating guide post is provided with a fitting portion, and the fitting portion is fitted and connected with the fitting hole.

3. The shield assembly of claim 1, wherein an end surface of the end of the insulating guide post remote from the bottom wall of the insertion hole is provided with a mounting portion for cooperating with a mounting tool to fixedly connect the insulating guide post with the bottom wall of the insertion hole.

4. The protective assembly according to any one of claims 1 to 3, further comprising a first elastic member and an insulating barrier, wherein the first elastic member and the insulating barrier are both sleeved on the insulating guide post, one end of the first elastic member abuts against the bottom wall of the insertion hole, the other end of the first elastic member abuts against the insulating barrier, and the insulating barrier shields at least part of the insertion gap at the opening of the insertion hole.

5. The shielding assembly according to claim 4, wherein the insulating guide pillar is provided with a blocking portion at an opening corresponding to the insertion hole, and a side of the insulating blocking piece facing away from the first elastic member abuts against the blocking portion.

6. A female plug, characterized in that, the female terminal of the female plug is provided with a jack, and the protection component of any one of claims 1 to 5 is arranged in the jack.

7. An electrical connector, comprising a male plug and a female plug, wherein a female terminal of the female plug is provided with a jack, the jack is provided with the protection component as claimed in any one of claims 1 to 5, a male terminal of the male plug is provided with a receiving hole, the male terminal is used for being inserted into the plugging gap, the receiving hole is used for receiving an insulating guide pillar of the protection component, and an outer peripheral surface of the male terminal is electrically connected with an inner peripheral side wall of the jack.

8. The electrical connector of claim 7, wherein the female plug further comprises a first insulating housing, the first insulating housing defining a first receiving hole, the female terminal being received in the first receiving hole, the female terminal defining the jack, the jack being exposed from the first receiving hole;

the male plug further comprises a second insulating shell, a second containing hole is formed in the second insulating shell, the male terminal is contained in the second containing hole, the containing hole is exposed out of the second containing hole, and a containing gap is formed between the outer peripheral surface of the male terminal and the inner peripheral side wall of the second containing hole.

9. The electrical connector of claim 8, wherein the female plug further comprises a second resilient member, wherein a second mounting groove is formed in an inner peripheral sidewall of the insertion hole, the second resilient member is received in the second mounting groove, and the second resilient member abuts against a bottom wall of the second mounting groove and an outer peripheral surface of the male terminal.

10. The electrical connector according to claim 8, wherein an end portion of the first insulating housing is provided with a ledge extending toward the first receiving hole side, and at least a part of the female terminal is shielded in an axial direction by the ledge.

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