CN207664295U - USB plug connector - Google Patents

Abstract

The utility model belongs to the technical field of the electric connector, a USB plug connector is provided, including body, terminal and casing, the body includes the basal portion and the tongue that stretches out from the first end of basal portion is protruding, has seted up a plurality of terminal slots on the tongue, and a plurality of terminals are inserted respectively and are established in the terminal slot, and each terminal slot one-to-one, casing cladding body. In addition, the USB plug connector further comprises a fixing piece, a fixing piece slot is formed in the body, the fixing piece slot penetrates through the base and extends to the tongue portion, the fixing piece is inserted into the fixing piece slot, one end of the fixing piece is fixed to the tongue portion of the body, the other end of the fixing piece extends to the base of the body, when the tongue portion is interfered by external force, the fixing piece can effectively resist external interference force, the bending strength of the tongue portion of the USB plug connector is enhanced, the risk that the tongue portion is bent and broken due to the external force is reduced, and normal work of the USB plug connector is guaranteed.

Description

A kind of USB plug connector

Technical field

The utility model belongs to technical field of electric connectors more particularly to a kind of USB plug connector.

Background technology

USB (Universal Serial Bus) technology is a kind of current widely used electrical interface technology, at present city The electronic products such as mobile phone, digital camera on field usually all use USB interface and computer to carry out data transmission.But USB plug currently on the market is easy to be interfered by external force in long-term use, so that plug bending is even fractureed, to damage USB plug influences the normal use of user.

Utility model content

The purpose of this utility model is to provide a kind of USB plug connectors, it is intended to solve USB plug in the prior art Connector because plug portion is easily bent and fractures cause USB plug connector damage the technical issues of.

To achieve the above object, the technical solution adopted in the utility model is：A kind of USB plug connector, the USB are provided Pin connector includes ontology, terminal and shell, and ontology includes that base portion and the first end from base portion protrude out the tongue come, tongue On offer multiple terminal slots, multiple terminals are plugged in terminal slots respectively, and each terminal and each terminal are inserted Slot corresponds, and shell coats ontology；In addition, USB plug connector further includes fixing piece, fixing piece is offered on ontology and is inserted Slot, fixing piece slot is through base portion and extends to tongue, and fixing piece is plugged in fixing piece slot, and the first end of fixing piece is worn It is located at tongue after crossing base portion, the second end of fixing piece is located at base portion.

Further, there is fixing piece the first butting section, fixing piece slot to be provided with abutting part, abutting part and first against Portion is matched with backstop fixing piece.

Optionally, USB plug connector includes multiple fixing pieces, and multiple fixing piece slots are offered on ontology, multiple Fixing piece is plugged in respectively in fixing piece slot, and each fixing piece is corresponded with each fixing piece slot, multiple fixing pieces Slot is uniformly distributed on the body.

Preferably, the quantity of fixing piece and fixing piece slot is two, and a fixing piece corresponds to a fixing piece and inserts Slot；Two fixing piece slots are located at the both sides of multiple terminal slots.

Further, above-mentioned each fixing piece slot is not communicated with terminal slots.

Further, fixing piece is integrally located at the inside of ontology；Alternatively, the side opposite with the first butting section of fixing piece Height it is identical as the height where the upper surface of tongue or lower surface；Alternatively, the part for extending to tongue of fixing piece slot Through the upper surface and/or lower surface of tongue, the height of the side towards tongue upper surface of fixing piece is less than the upper table of tongue The height in face and/or the height of the side towards tongue lower surface of fixing piece are less than the height of the lower surface of tongue.

Further, terminal includes terminal contact portion, terminal connection part and terminal weld part, terminal contact portion elasticity protrusion In outside terminal slots, terminal connection part connection terminal contact site and terminal weld part, terminal connection part are embedded in terminal slots, And terminal weld part is made to extend terminal slots.

Further, USB plug connector further includes rear cover, and rear cover is connected to the second end of base portion；Rear cover includes second The second end of butting section, the second butting section and base portion abuts against, and the second end of fixing piece is abutted against with the second butting section.

Further, rear cover further includes the support portion for extending back out from the second butting section；It is opened up on second butting section There is the terminal tails slot through the second butting section, the multiple openings being connected to terminal tails slot are reserved on support portion, holds Sub- interconnecting piece continues to extend in terminal tails slot, and terminal weld part is pierced by opening, and terminal, terminal tails slot and opens Mouth corresponds.

Further, locating slot is offered on the end face of the second end of base portion, and positioning has been protruded outward on the second butting section Column, positioning column is inserted into locating slot, with ontology and the rear cover of being located by connecting.

The beneficial effects of the utility model：USB plug connector provided by the utility model is fixed with fixation on ontology One end of part, the fixing piece is fixed on the tongue of ontology, and the other end of fixing piece extends to the base portion of ontology, when the tongue of connector When portion is by External force interference, fixing piece can effectively resist extraneous perturbed force, to enhance the tongue of USB plug connector Bending strength, reduce tongue be bent the risk to fracture due to by external force, damage of the external force to connector can be effectively reduced, with Ensure the normal work of the USB plug connector.

Description of the drawings

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this practicality is new Some embodiments of type for those of ordinary skill in the art without having to pay creative labor, can be with Obtain other attached drawings according to these attached drawings.

Fig. 1 is the stereogram exploded view for the USB plug connector that the utility model embodiment provides；

Fig. 2 is the schematic diagram of the ontology for the USB plug connector that the utility model embodiment provides；

Fig. 3 is the opposite with the first butting section of the fixing piece for the USB plug connector that the utility model embodiment provides The cut-away view when height of side is identical as the height of the upper surface of tongue；

Fig. 4 is the cuing open when fixing piece for the USB plug connector that the utility model embodiment provides is integrally located in ontology Diagram；

Fig. 5 is the schematic diagram of the terminal for the USB plug connector that the utility model embodiment provides；

Fig. 6 is the schematic diagram when rear cover for the USB plug connector that the utility model embodiment provides is assembled with ontology；

Fig. 7 is the schematic diagram of the rear cover for the USB plug connector that the utility model embodiment provides；

Fig. 8 be the USB plug connector that provides of the utility model embodiment without matching terminal when schematic diagram；

Fig. 9 is the schematic diagram of the assembly side period of the day from 11 p.m. to 1 a.m for the USB plug connector that the utility model embodiment provides；

Figure 10 is the schematic diagram of the shell for the USB plug connector that the utility model embodiment provides；

Figure 11 is the three-dimensional combination figure for the USB plug connector that the utility model embodiment provides.

Wherein, each reference numeral in figure：

10, ontology；101, fixing piece slot；11, base portion；111, abutting part；113, locating slot；114, buckling groove；115、 Groove；12, tongue；121, terminal slots；20, terminal；201, first terminal；202, Second terminal；21, terminal contact portion；22、 Terminal connection part；221, terminal protrusion；222, terminal hangnail；223, the tail portion of terminal connection part；23, terminal weld part；231、 First terminal weld part；232, Second terminal weld part；30, shell；31, socket part；32, upper clinch；33, lower clinch； 34, holding hole；35, left clamping portion；36, right clamping portion；37, convex born of the same parents；40, fixing piece；41, the first butting section；50, rear cover；51、 Second butting section；511, terminal tails slot；512, positioning column；513, lapping plate；514, the first convex block；52, support portion；521、 Opening.

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar structure or structure with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indicates or imply Signified device or structure must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to this The limitation of utility model.

In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more this feature.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined.

In the present invention unless specifically defined or limited otherwise, the arts such as term " connected ", " connection ", " fixation " Language shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase Even, can also can be indirectly connected through an intermediary that the connection of two inside configurations or the interaction of two structures are closed System.For the ordinary skill in the art, it can understand above-mentioned term in the present invention as the case may be Concrete meaning.

As depicted in figs. 1 and 2, the USB plug connector of the first embodiment offer of the utility model includes：Ontology 10, Terminal 20 and shell 30, wherein ontology 10 uses insulating materials injection molding, and ontology 10 includes base portion 11 and from base portion 11 First end protrudes out the tongue 12 come, offers multiple terminal slots 121 on tongue 12, multiple terminals 20 are plugged in terminal respectively In slot 121, and each terminal 20 is corresponded with each terminal slots 121, and shell 30 coats ontology 10；The USB plug connects It further includes fixing piece 40 to connect device, fixing piece slot 101 is offered on ontology 10, fixing piece slot 101 is through base portion 11 and extends To tongue 12, fixing piece 40 is plugged in fixing piece slot 101, and the first end of fixing piece 40 is located at tongue after base portion 11 12, the second end of fixing piece 40 is located at base portion 11.

USB plug connector provided in this embodiment, in addition to ontology 10, terminal including can guarantee connector normal work 20 and shell 30 other than, fixing piece 40 is further fixed on ontology, and the tongue in ontology 10 is arranged in one end of the fixing piece 40 12, the other end of fixing piece 40 extends to the base portion 11 of ontology 10, to make fixing piece 40 involve tongue 12 and base portion 11 it Between, when the tongue 12 of connector is by External force interference, fixing piece 40 can effectively resist extraneous perturbed force, to assist The survivability at crossover position between tongue 12 and base portion 11 is improved, to enhance the tongue 12 of USB plug connector Bending strength reduces tongue 12 and is bent the risk to fracture at crossover position due to by external force between tongue 12 and base portion 11, Damage of the external force to connector is effectively reduced, can effectively ensure the normal work of the USB plug connector.

Specifically, above-mentioned fixing piece 40 as shown in figures 1 and 3 has the first butting section 41, is opened in consolidating on ontology 10 Determine part slot 101 and be provided with abutting part 111, abutting part 111 is matched with the first butting section 41 with backstop fixing piece 40.

In the present embodiment, above-mentioned fixing piece 40 can be equipped with it is multiple, and on ontology 10 it is corresponding offer it is more A fixing piece slot 101, multiple fixing pieces 40 are plugged in respectively in fixing piece slot 101, and each fixing piece 40 with it is each solid Determine the one-to-one correspondence of part slot 101, multiple fixing piece slots 101 are evenly distributed on ontology 10.Wherein it is preferred to such as Fig. 3 institutes Show, the quantity of above-mentioned fixing piece 40 and fixing piece slot 101 is two, and a fixing piece 40 corresponds to a fixing piece slot 101；Two fixing piece slots 101 are located at the both sides of multiple terminal slots 121.

The material of fixing piece provided in this embodiment is metal material, and further is preferably the larger metal of intensity, To increase the bending strength of tongue as far as possible, the risk that the tongue of connector fractures by external force is reduced.

Further, above-mentioned each fixing piece slot 101 is not communicated with terminal slots 121.When fixing piece 40 is by outer When force effect, fixing piece 40 may generate flexural deformation positioned at one end of tongue 12 because resisting external force, so as to cause fixation Part is located at one end bending of tongue 12, and fixing piece slot 101 is not connected to terminal slots 121, can be effectively prevented from because of stress And the fixing piece 40 bent generates damage to terminal 20.

Specifically, as shown in figure 4, above-mentioned fixing piece 40 can be integrally located at the inside of ontology 10, fixing piece 40 is complete at this time It is wrapped in tongue 12 and base portion 11 entirely；Alternatively, the height and tongue of the side opposite with the first butting section 41 of fixing piece 40 The upper surface in portion 12 or the height where lower surface are identical；Alternatively, the part for extending to tongue 12 of fixing piece slot 101 is run through The upper surface of tongue 12, the height of the side towards 12 upper surface of tongue of fixing piece 40 are less than the height of the upper surface of tongue 12 (not shown)；Alternatively, the lower surface of tongue 12 is run through in the part for extending to tongue 12 of fixing piece slot 101, fixing piece 40 It is less than the height (not shown) of the lower surface of tongue 12 towards the height of the side of 12 lower surface of tongue；Alternatively, fixing piece slot 101 part for extending to tongue 12 while upper and lower surface through tongue 12, described in the direction of the fixing piece 40 The height of the side of 12 upper surface of tongue is less than the height of the upper surface of the tongue 12, and described in the direction of the fixing piece 40 The height of the side of 12 lower surface of tongue is less than the height (not shown) of the lower surface of the tongue 12；Alternatively, fixing piece slot 101 part for extending to tongue 12 while upper and lower surface through tongue 12, fixing piece 40 towards on tongue 12 The height of the side on surface is less than the height of the upper surface of tongue 12, and the other side of fixing piece 40 is identical as the height of lower surface (not shown)；Alternatively, the part for extending to tongue 12 of fixing piece slot 101 at the same through tongue 12 upper surface and following table Face, the height of the side towards 12 lower surface of tongue of fixing piece 40 are less than the height of the lower surface of tongue 12, fixing piece 40 Other side (not shown) identical as the height of upper surface.

Specifically, as shown in Figure 1, the terminal 20 of USB plug connector provided in this embodiment include terminal contact portion 21, Terminal connection part 22 and terminal weld part 23,21 elasticity of terminal contact portion protrude from outside terminal slots 121, the terminal connection part The 22 connections terminal contact portion 21 and terminal weld part 23, terminal connection part 22 is embedded in terminal slots 121, and makes terminal Weld part 23 extends terminal slots 121.

As shown in figure 5, the terminal 20 in the present embodiment includes first terminal 201, first terminal 201 is in vertical strip, The terminal contact portion 21 outside terminal slots 121 is protruded from an elasticity, which is the contact that one is in inverted " v " Portion, when USB plug connector provided in this embodiment is plugged in corresponding socket (not shown), terminal contact portion 21 can be with socket Signal contact jaw be electrically connected, with transmission data signal.In addition, the terminal further includes an elongated terminal connection part 22, And the upper end away from one end of terminal contact portion 21 of terminal connection part 22 to the right or to the left horizontal buckling and prolong backward It stretches and is formed by a flat first terminal weld part 231, the terminal connection part 22 is close to the one of first terminal weld part 231 The both sides up and down at end protrude out two-terminal protrusion 221 respectively, and terminal connection part 22 is close to one end of first terminal weld part 231 Upside also protruded out several terminal hangnails 222, two-terminal protrusion 221 and several terminal hangnails 222 are held on ontology 10, with Terminal is set preferably to be fixed in ontology.

As shown in figure 5, the terminal 20 in the present embodiment further includes Second terminal 202, the structure of Second terminal 202 and first The structure of terminal 201 is substantially similar, the difference is that only：The Second terminal weld part 232 of Second terminal 202, be via The lower end away from one end of terminal contact portion 21 of the terminal connection part 22 of Second terminal 202 to the left or to the right horizontal buckling And it extends back and is formed by.Second terminal weld part 232 and first terminal weld part 231 are divided into two rows arrangement, can be with Terminal is set more reasonably to utilize the inner space of ontology 10, it is excessive to avoid ontology 10 is done due to terminal 20 is excessive, from And it wastes material, increase cost.

Specifically, as shown in Fig. 2, Fig. 6 and Fig. 7, above-mentioned USB plug connector further includes rear cover 50, and rear cover 50 connects In the second end of base portion 11；Rear cover 50 includes the second butting section 51, and the second butting section 51 and the second end of base portion 11 abut against, and The second end of fixing piece 40 is abutted against with the second butting section 51；Locating slot 113 is offered on the end face of the second end of base portion 11, the Positioning column 512 is protruded outward on two butting sections 51, positioning column 512 is inserted into locating slot 113, to be located by connecting ontology 10 with after Lid 50.Rear cover 50 is realized and is located by connecting by locating slot 113 and the mutual cooperation of positioning column 512 with ontology 10, and rear cover 50 can be made The second butting section 51 be closely connected to ontology 10 base portion 11 second end, meanwhile, the second end of fixing piece 40 is also with Two butting sections 51 closely abut, and the fixing piece 40 that can will pass through the setting of base portion 11 is firmly fixed on the inside of ontology 10, Significantly reduce the risk for loosening in the inside of ontology 10 by fixing piece 40, and the bending resistance of fixing piece being made to reduce.

Specifically, as shown in Figure 7 to 9, above-mentioned rear cover 50 further includes extending back out from above-mentioned second butting section 51 Support portion 52；Offer the terminal tails slot 511 through the second butting section 51 on second butting section 51, it is pre- on support portion 52 There are the multiple openings 521 being connected to terminal tails slot 511, terminal connection part 22 continues to extend to terminal tails slot 511 In, terminal weld part 23 is pierced by opening 521, and terminal 20, terminal tails slot 511 and opening 521 correspond.

Above-mentioned terminal tails slot 511 is in the shape of " ┌ " or " ┐ " or " ┘ " or " └ ", and the terminal of two kinds of shapes Tail portion slot 521 is staggered, and is divided into two rows, upper row in " ┌ " or " ┐ " 511 corresponding inserted of terminal tails slot the One terminal weld part 231, lower row are in the 521 corresponding inserted Second terminal weld part 232 of terminal tails slot of " ┘ " or " └ ", end The tail portion 223 of sub- interconnecting piece is fixed in the vertical portion of terminal tails slot 511.The lateral part of terminal tails slot 511 Through support portion 52 and above-mentioned opening 521 is formed, and is open and is symmetrically arranged in two rows, terminal weld part 23 passes through terminal The lateral part of tail portion slot 511 is simultaneously symmetrically placed in opening 521.

Specifically, as shown in fig. 7, the direction where the upper surface of the second butting section 51 of rear cover 50 towards base portion 11 is extended One lapping plate 513, the intermediate position of lapping plate 513 is protruding upward one first convex block 514, opposite, the lower surface of base portion 11 Intermediate position downwardly projecting have one second convex block (not shown).As shown in Figure 10, USB plug connector provided in this embodiment Shell 30 include a socket part 31, and after being folded upward at towards the direction where tongue 12 of the upper surface of socket part 31 again to Horizontal direction continues to have extended to form clinch 32, and the lower surface of socket part 31 is turned under towards the direction where tongue 12 Continue to have extended to form lower clinch 33, the intermediate position difference of upper clinch 32 and lower clinch 33 to horizontal direction again after folding It is reserved that there are one holding holes 34.When shell 30 coats ontology 10, above-mentioned socket part 31 is socketed on the tongue 12 of ontology 10, on Clinch 32 is overlapped on base portion 11 and rear cover 50, the upper surface of lapping plate 513 overlap joint and base portion 11 of rear cover 50, and makes first Convex block 514 is caught in the holding hole 34 on clinch 32；Relatively, lower clinch 33 is overlapped on the lower surface of base portion 11, and Make in the holding hole 34 that the second convex block is caught on clinch 32.It is by above-mentioned all parts that ontology 10 and rear cover 50 is close It is assembled together, and terminal 20 and fixing piece 40 is made preferably to be fixed in ontology 10, to ensure the stabilization work of pin connector Make.

Further, as shown in figs. 6 and 10, the left and right sides of base portion 11 is recessed respectively inwards, and there are two buckling grooves for formation 114.Correspondingly, again to horizontal direction after reneing after being bent to the left towards the direction where tongue 12 of the left side of socket part 31 It stretches and is formed with left clamping portion 35, again to horizontal direction after being bent to the right towards the direction where tongue 12 of the right side of socket part 31 Continue to have extended to form right clamping portion 36.When shell 30 coats ontology 10, left clamping portion 35 and right clamping portion 36 are corresponding It is caught in the buckling groove 114 of the left and right sides of base portion 11, to prevent shell 30 from swinging, and influences plug connection The normal use of device.In addition, dividing on the upper clinch 32 of shell 30, lower clinch 33, left clamping portion 35 and right clamping portion 36 At least one convex born of the same parents 37 have not been protruded outward, to reinforce the intensity of each corresponding site, to enhance the integral strength of shell 30.

Preferably, the shell of the USB plug connector of the utility model is stamped to form by metallic plate, upper and lower clinch and The setting of left and right clamping portion, had not only improved the shielding properties of pin connector, but also enhanced the intensity of pin connector entirety, The electrically and physically performance of pin connector entirety is set all to be improved, to improve the stability in use of pin connector.

Specifically, as shown in figure 11, at least one groove is offered respectively close to the left and right sides of upper surface in base portion 11 115.After shell 30 coats ontology 10, one layer of plastic jacket (not shown), the plastic cement of liquid are molded on base portion 11 and rear cover 50 The exterior space into rear cover 50 and base portion 11 can be filled, rear cover 50 just can not exit after plastic cement solidification；Meanwhile liquid plastic cement is also It can flow into above-mentioned groove 115, to reinforce the fixing power of plastic jacket, ensure that pin connector will not be due to by external force And deviate from from plastic jacket.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model Protection domain within.

Claims (10)

1. a kind of USB plug connector, including ontology (10), terminal (20) and shell (30), the ontology (10) includes base portion (11) tongue (12) come and is protruded out from the first end of base portion (11), and multiple terminal slots are offered on the tongue (12) (121), multiple terminals (20) are plugged in respectively in the terminal slots (121), and each terminal (20) with it is each The terminal slots (121) correspond, and the shell (30) coats the ontology (10), it is characterised in that：The USB plug Connector further includes fixing piece (40), and fixing piece slot (101), the fixing piece slot are offered on the ontology (10) (101) run through the base portion (11) and extend to the tongue (12), the fixing piece (40) is plugged in the fixing piece slot (101) in, and the first end of the fixing piece (40) passes through the base portion (11) to be located at the tongue (12), the fixing piece afterwards (40) second end is located at the base portion (11).

2. USB plug connector according to claim 1, which is characterized in that the fixing piece (40) have first against Portion (41), the fixing piece slot (101) are provided with abutting part (111), the abutting part (111) and first butting section (41) it matches with fixing piece described in backstop (40).

3. USB plug connector according to claim 2, which is characterized in that the USB plug connector includes multiple institutes Fixing piece (40) is stated, and offers multiple fixing piece slots (101) on the ontology (10), multiple fixing pieces (40) It is plugged in respectively in the fixing piece slot (101), and each fixing piece (40) and each fixing piece slot (101) It corresponds, multiple fixing piece slots (101) are evenly distributed on the ontology (10).

4. USB plug connector according to claim 2, which is characterized in that the fixing piece (40) and the fixing piece The quantity of slot (101) is two, and a fixing piece (40) corresponds to a fixing piece slot (101)；Two The fixing piece slot (101) is located at the both sides of multiple terminal slots (121).

5. USB plug connector according to any one of claim 1 to 4, which is characterized in that the fixing piece slot (101) it is not communicated with the terminal slots (121).

6. according to claim 2 to 4 any one of them USB plug connector, which is characterized in that

The fixing piece (40) is integrally located at the inside of the ontology (10)；

Alternatively, the height of the side opposite with first butting section (41) of the fixing piece (40) and the tongue (12) Height where upper surface or lower surface is identical；

Alternatively, the upper table of the tongue (12) is run through in the part for extending to the tongue (12) of the fixing piece slot (101) The height of face and/or lower surface, the side of the direction tongue (12) upper surface of the fixing piece (40) is less than the tongue (12) height of the side of the direction tongue (12) lower surface of the height of upper surface and/or the fixing piece (40) is less than The height of the lower surface of the tongue (12).

7. USB plug connector according to claim 1, which is characterized in that the terminal (20) includes terminal contact portion (21), terminal connection part (22) and terminal weld part (23), terminal contact portion (21) elasticity protrude from the terminal slots (121) outside, the terminal connection part (22) connects the terminal contact portion (21) and the terminal weld part (23), the terminal Interconnecting piece (22) is embedded in the terminal slots (121), and the terminal weld part (23) is made to extend the terminal slots (121)。

8. USB plug connector according to claim 7, which is characterized in that the USB plug connector further includes rear cover (50), the rear cover (50) is connected to the second end of the base portion (11)；The rear cover (50) includes the second butting section (51), institute It states the second butting section (51) and the second end of the base portion (11) abuts against, and the second end of the fixing piece (40) and described the Two butting sections (51) abut against.

9. USB plug connector according to claim 8, which is characterized in that the rear cover (50) further includes from described The support portion (52) that two butting sections (51) extend back out；It offers on second butting section (51) and is supported through described second The terminal tails slot (511) of relying part (51) is reserved on the support portion (52) and is connected to the terminal tails slot (511) Multiple openings (521), the terminal connection part (22) continues to extend in the terminal tails slot (511), the terminal Weld part (23) is pierced by the opening (521), and the terminal (20), the terminal tails slot (511) and the opening (521) it corresponds.

10. USB plug connector according to claim 8 or claim 9, which is characterized in that the second end of the base portion (11) Locating slot (113) is offered on end face, and positioning column (512), the positioning column have been protruded outward on second butting section (51) (512) it is inserted into the locating slot (113), with the ontology (10) and the rear cover (50) of being located by connecting.