CN217215215U - Electric connector - Google Patents

Abstract

The invention relates to the technical field of electronics, and provides an electric connector which comprises an insulator and an electrical component, wherein the insulator comprises a containing cavity communicated with an electrical plug cavity, the electrical component comprises a contact group and a rear seat, the contact group comprises an inner contact pair and an outer contact pair, and the outer contact pair comprises two outer contact parts respectively stacked on the outer sides of the two inner contact parts; the rear seat is adapted to the cavity and comprises an upper contact piece groove and a lower contact piece groove respectively, and the overlapped inner contact piece and the outer contact piece are fixedly arranged in the upper contact piece groove so as to enable the arms of the inner contact piece and the outer contact piece to be suspended in the upper groove; the other inner contact piece and the other outer contact piece are fixed in the lower contact piece groove so that the arms of the other inner contact piece and the other outer contact piece are suspended in the lower groove; the arm length of outer contact piece is greater than the arm length of inner contact piece, and every arm is close to the free end and is formed with the portion of touching, and the portion of touching of two inner contact pieces inwards symmetrically extends and hangs in the chamber of inserting, and the inside symmetry of the portion of touching of two inner contact pieces extends and is in the place ahead of the portion of touching of two inner contact pieces in the chamber of inserting, has solved the technical problem that many contacts contacted through aforementioned structure, has reached easily to make and reduce cost's effect.

Description

Electric connector

Technical Field

The invention relates to the technical field of electronics, in particular to an electric connector.

Background

The mixed power and signal electric connector in the prior art can generally realize the transmission of power and signals between the board and the board. A power supply contact assembly and a signal contact assembly are installed in the mixed electric connector shell, one end of a power supply contact piece in the power supply contact assembly is in plug conduction with a contact piece matched with the outside, and the other end of the power supply contact piece is in plug conduction/welding conduction with a PCB (printed circuit board) matched with the outside; similarly, one end of the signal contact piece is in conductive contact with the adaptive contact piece, and the other end of the signal contact piece is in plug-in connection/welding conduction with the PCB through the signal pin. When the electric connector is used, the through-current capacity of the electric connector is limited because the contact points of the power supply contact pieces are fewer, and if the contact points of the power supply contact pieces are increased, the manufacturing difficulty is increased; secondly, the through-flow index of the product is increased, and the current product is difficult to meet the through-flow requirement if the structure of the current product is not optimized.

Disclosure of Invention

To solve the above technical problems, the present invention provides an electrical connector.

In order to achieve the purpose, the technical scheme applied by the invention is as follows:

an electrical connector is provided, comprising an insulator and an electrical component, wherein:

the insulator comprises a containing cavity communicated with the electric plug cavity, the upper wall of the electric plug cavity is provided with an upper groove, the opposite lower wall of the electric plug cavity is provided with a lower groove, the electric component comprises a contact group and a rear seat, the contact group comprises an inner contact pair and an outer contact pair, the inner contact pair comprises two inner contact pieces, and the outer contact pair comprises two outer contact pieces respectively stacked on the outer sides of the two inner contact pieces; the rear seat is adapted to the housing and includes an upper contact slot and a lower contact slot, the upper contact slot stabilizing an inner contact and an outer contact such that an arm of the inner contact and an arm of the outer contact are suspended from the upper slot; the lower contact slot secures the other inner contact and the other outer contact such that the arms of the other inner contact and the arms of the other outer contact overhang the lower slot; the arm length of the outer contact is greater than the arm length of the inner contact, and each arm is formed with a contact portion near the free end, wherein: the contact parts of the two inner contacts extend inwards symmetrically and are suspended in the plug cavity, and the contact parts of the two outer contacts extend inwards symmetrically and are positioned in front of the contact parts of the two inner contacts in the plug cavity.

In the present embodiment, it is preferable that: the upper contact component groove is provided with a positive inclined plane, the lower contact component groove is provided with a back inclined plane, an inner contact component and an outer contact component are respectively provided with an inclined section matched with the positive inclined plane, the other inner contact component and the other outer contact component are respectively provided with an inclined section matched with the back inclined plane, the length of the inclined section matched with the positive inclined plane is smaller than that of the inclined section matched with the back inclined plane, and each inclined section extends backwards from the front connecting arm to form a guide extension part.

In the present embodiment, it is preferable that: the appearance chamber divide into front chamber and back chamber, and the upper trough has the top, and the lower trough has the bottom, and the height of front chamber is not less than the height of inserting chamber upper wall to lower wall and is not more than the height of upper groove top to lower trough bottom, wherein:

a stopping surface is formed above the rear cavity, an upper clamping hole is formed in the upper wall of the rear cavity close to the stopping surface, and a lower clamping hole is formed in the lower wall of the rear cavity opposite to the upper clamping hole.

In the present embodiment, it is preferable that: the upper contact piece groove is provided with an upper front groove and an upper rear groove, the positive inclined plane is connected between the upper front groove and the upper rear groove, the lower contact piece groove is provided with a lower front groove and a lower rear groove, and the back inclined plane is connected between the lower front groove and the lower rear groove, so that the rear seat is of a front-low back-high structure with a middle inclined plane; an upper clamping block matched with the upper clamping hole is protruded on the groove wall close to the positive inclined plane, and a lower clamping block matched with the lower clamping hole is arranged on the groove wall close to the back inclined plane; the upper front groove and the opposite lower front groove are positioned in the front cavity, the forward inclined groove wall comprises a front surface and an upper surface, the front surface of the forward inclined groove wall supports against a stop surface, and the upper surface of the forward inclined groove wall supports against the upper wall of the rear cavity.

In the present embodiment, it is preferable that: electric connector still includes the signal subassembly, and the insulator still includes that the signal inserts the chamber and inserts the communicating terminal hole in chamber with the signal, and the chamber is inserted in the signal side by side in the chamber one side is inserted to the electrical property, wherein:

the upper wall of the signal plug cavity is provided with an upper groove, and the lower wall of the signal plug cavity is provided with a lower groove;

the terminal holes comprise upper terminal holes and lower terminal holes, the upper terminal holes are communicated with the upper groove, the top of the upper terminal holes is horizontal to the top of the upper groove, the lower terminal holes are connected with the lower groove, and the bottom of the lower terminal holes is horizontal to the bottom of the lower groove;

the signal assembly comprises a plug-in set, the plug-in set comprises an upper terminal and a lower terminal, the upper terminal comprises a fixed section, an elastic section connected to the front end of the fixed section and an end pin connected to the rear end of the fixed section, and the bullet section at the upper end is provided with a contact part; the lower terminal comprises a fixed section, an elastic section connected to the front end of the fixed section and an end pin connected to the rear end of the fixed section, and the lower terminal bullet section is provided with a contact part which is symmetrical to the contact part of the upper terminal.

In the present embodiment, it is preferable that: go up terminal canned paragraph both sides and lower terminal canned paragraph both sides and have protruding thorn respectively, wherein:

the upper terminal fixing section is positioned in the upper terminal hole and fixes the upper terminal on the insulator through the interference of the convex thorns, so that the bullet section at the upper end is positioned in the upper groove and the contact part of the upper terminal is positioned in the signal insertion cavity;

the lower terminal fixing section is positioned in the lower terminal hole and enables the lower terminal to be fixed on the insulator through protruding thorn interference, so that the lower terminal sub-elastic section is positioned in the lower groove, and the lower terminal contact part is symmetrical to the upper terminal contact part in the signal insertion cavity.

In the present embodiment, it is preferable that: a bending part is arranged between the lower terminal pin and the fixing section connected with the lower terminal pin, and the lower terminal pin is vertically downward through the bending part;

a bending part is arranged between the upper terminal pin and the fixing section connected with the upper terminal pin, and the lower terminal pin and the upper terminal pin are in the same direction and form the same plane with the free end surface of the upper terminal pin through the bending part.

In the present embodiment, it is preferable that: the insulator forms the breach at the back, and the breach is including being in the breach behind the chamber that holds the chamber rear and being in the hole breach behind terminal hole rear, has baffle portion behind the chamber between breach and the hole breach, wherein:

the cavity rear gap is communicated with the rear cavity, the electric component is divided into a front half part and a rear half part, the front half part is adapted to the accommodating cavity, and the rear half part is sealed in the cavity rear gap;

and the front surface of the supporting plate is recessed in the front surface of the insulator so that the front surface of the supporting plate and the front surface of the insulator form a step surface.

In the present embodiment, it is preferable that: the front surface of the insulator is downwards provided with a clamping groove with a related supporting plate, the length of the clamping groove is the same as that of the supporting plate, and the depth of the clamping groove is lower than that of the front surface of the supporting plate, so that the groove wall on the rear side of the clamping groove and the front side wall of the supporting plate form a coplanar surface.

In the present embodiment, it is preferable that: further including the back lid, the back lid is the formation of moulding plastics and includes the main part of breach behind the encapsulation form adaptation hole and the buckle portion that the plane extends forward on flushing the main part, is formed with the knot piece of detaining the draw-in groove along buckle portion leading flank downwards, upwards fretwork below the main part and form the terminal groove that has preceding notch and lower notch, and upper and lower terminal includes half section behind the canned paragraph, kink and end foot and all is in the terminal groove, and wherein each end foot free end stretches out the terminal groove downwards.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the electric connector can effectively improve the current capacity on the premise of unchanged volume through an optimized structure, and the optimized structure comprises a contact group consisting of a plurality of outer contact elements and inner contact elements and conductive contact with the same adaptive conductive element so as to increase the contact parts on the same circuit, thereby improving the current capacity of the electric connector on the premise of meeting the temperature rise;

the electric connector/terminal comprises an inserting end part, a tail part and a connecting part/fixing part, the single separating components are combined into a whole through the rear seat and assembled in the insulator, and the connecting part/terminal is directly clamped on the rear seat so as to be convenient to assemble, so that the manufacturing cost is effectively reduced;

and compared with 4 contact points in the prior art, the number of the contact points is increased to be more than 4, so that the transmission flux is increased, and the through-current capacity is effectively improved in the same space.

Drawings

Fig. 1 is a perspective view schematically illustrating the present embodiment.

Fig. 2 is another perspective view of the present embodiment.

Fig. 3 is an exploded schematic view of the present embodiment.

Fig. 4 is a perspective view of the insulator of fig. 3 from another perspective.

Fig. 5 is another view of the electrical component of fig. 3 and an exploded view (of the electrical component) that differs from the exploded view of fig. 3.

Fig. 6 is a perspective view of the signal assembly of fig. 3 from another perspective.

Fig. 7 is a front view of the present embodiment.

Fig. 8 is a cross-sectional view a-a of fig. 7.

Fig. 9 is a cross-sectional view of B-B in fig. 7.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. Moreover, in the interest of brevity and understanding, only one of the components having the same structure or function is illustrated schematically or designated in some of the drawings. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

In the embodiments shown in the drawings, the directions such as up, down, left, right, front, and rear are used to explain the structure and movement of various components of the present invention not absolutely, but relatively. These illustrations are appropriate when these components are in the positions shown in the figures. If the description of the positions of these components changes, the indication of these directions changes accordingly.

In addition, in the description of the present application, the terms "first," "second," and the like are used only for distinguishing the description, and are not intended to indicate or imply relative importance.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

In the present embodiment, as shown in fig. 1 to 5, an electrical connector is provided, which includes an insulator 10, and an electrical component 20 and a signal component 30 accommodated in the insulator 10, wherein:

the insulator 10 has an electrical plug 11 for receiving an external electrical component (not shown) and a signal plug 12 for receiving an external signal component (not shown), and the signal plug 12 and the electrical plug 11 are arranged in a left-right direction on the insulator 10. In this example, the electrical cavity 11 extends backward and forms an upper slot 111 and a lower slot 112 opposite to each other on the upper wall and the lower wall of the electrical cavity 11, and the signal cavity 12 extends backward and forms an upper slot 121 and a lower slot 122 opposite to each other on the upper wall and the lower wall of the signal cavity 12; a cavity 13 communicated with the electrical plug cavity 11 and a terminal hole 14 communicated with the signal plug cavity 12 are respectively formed by extending forwards at the back of the insulator 10, the cavity 13 is divided into a front cavity (not shown) and a back cavity (not shown), and the height of the front cavity is not less than the height from the upper wall to the lower wall of the plug cavity and not more than the height from the top of the upper slot 121 of the plug cavity and the bottom of the lower slot 122 of the plug cavity; the rear cavity is extended upwards to form a stop surface 131 above the rear cavity, an upper clamping hole 132 is formed in the upper wall of the rear cavity close to the stop surface 131, and a lower clamping hole 133 is formed in the lower wall of the rear cavity opposite to the upper clamping hole 132; the terminal hole 14 includes an upper terminal hole 141 and a lower terminal hole 142, the upper terminal hole 141 communicates with the upper groove 121, and the top (not labeled) of the upper terminal hole is horizontal to the top (not labeled) of the upper groove 121, the lower terminal hole 142 connects with the lower groove 142, and the bottom (not labeled) of the lower terminal hole is horizontal to the bottom (not labeled) of the lower groove 122; a cavity tail part 15 and a hole tail part 16 are respectively and symmetrically extended backwards from the back of the insulator 10 along two sides, a partition plate part 17 is formed between the cavity tail part 15 and the hole tail part 16 (namely, at the junction of the cavity 13 and the terminal hole 14), a cavity back gap 18 is formed between the partition plate part 17 and the cavity tail part 15, and a hole back gap 19 is formed between the partition plate part 17 and the hole tail part 16. In this example, the cavity tail 1 and the hole tail 16 have back surfaces lower than the back surface of the insulator 10 and respectively stand with positioning posts 151 and 161, the positioning posts 151 and 161 are adapted to an external member (such as a PCB), a supporting plate 191 is formed in the hole rear notch 10 and extends to the back surface close to the front surface of the insulator 10, and the front surface of the supporting plate 191 is recessed into the front surface of the insulator 10, so that the front surface of the supporting plate 191 and the front surface of the insulator 10 form a stepped surface (not labeled); the front surface of the insulator 10, which is connected to the front side of the retainer plate 191, is recessed downward to form a catching groove 192, so that a long groove wall (not labeled) at the rear side of the catching groove 192 is formed "coplanar" with the front side of the retainer plate 191.

In the present embodiment, with continuing reference to fig. 1 to 5 and with combined reference to fig. 7 to 9, the electrical component 20 in the figures includes a contact group 21 and a rear seat 22 for aligning and positioning the contact group 21 together, the contact group 21 includes a plurality of inner contact pairs 211 and outer contact pairs 212, the inner contact pairs 211 include two inner contacts 2111 oppositely positioned on the rear seat 22, and the outer contact pairs 212 include two outer contacts 2121 respectively stacked outside the two inner contacts 2111 in a corresponding manner; the rear seat 22 is formed of an insulating material and includes opposing upper and lower contact slots 221 and 222, the upper contact slot 221 locating an inner contact 2111 and an outer contact 2121 superimposed on the outside of the inner contact, the lower contact slot 222 locating another inner contact 2111 and another outer contact 2121 superimposed on the outside of the inner contact, the inner contact being inwardly symmetrical to the other inner contact at a contact portion (not labeled) on the rear seat 22, the outer contact and the other outer contact also being inwardly symmetrical at a contact portion (not labeled) on the rear seat 22, such that the inner contact pair 211 is between the one outer contact and the other outer contact on the rear seat 22, the outer contact 2121 arm (B) having a length greater than the inner contact 2111 arm (B) such that the outer contact arm (B) contact portion overhangs the inner contact arm (B) contact portion on the rear seat 22. In this example, the upper contact slot 221 and the lower contact slot 222 have a front bevel 2211 and a back bevel 2221, respectively, and the inner contact 2111 and the outer contact 2121 have a sloped section (w) that fits the upper contact slot front bevel 2211 and the lower contact slot back bevel 2221, respectively, and the sloped section connects between the contact arm of the front section and the guide (y) of the rear section. In this example, the upper surface of the rear holder 22 (i.e., the upper side surface of the wall of the upper contact groove 221) is formed with a stepped surface 223 from front to rear, an upper latch 224 that fits into the upper latch hole 132 is projected on the stepped surface, and a lower latch 225 that fits into the lower latch hole 133 is provided in correspondence to the lower surface of the upper surface in the form of the upper latch 224. In this embodiment, when the electrical component 20 is loaded into the cavity 13, the front surface abuts against the stop surface 131, so that the electrical component 20 cannot move forward in the cavity; then, the upper fixture block 224 interferes with the upper fixture hole 132 and the lower fixture block 225 interferes with the lower fixture hole 133, so that the front half part of the electrical component 20 is located in the cavity, and the rear half part of the electrical component is located in the cavity rear gap 18 and cannot be naturally separated, so that the electrical component 20 and the insulator 10 are combined into a whole.

In the present embodiment, referring to fig. 6, fig. 7 and fig. 9 and continuing to refer to fig. 1 to fig. 3 and fig. 4, the signal assembly 30 includes a plug set 31 and a rear cover 32, the plug set 31 includes an upper row terminal 311 and a lower row terminal 312, the upper row terminal 311 and the lower row terminal 312 are correspondingly disposed in the signal insertion cavity 12, so that an upper contact portion (not labeled) of the upper row terminal 311 corresponds to a lower contact portion of the lower row terminal 312. In this example, the upper row terminal 311 is composed of a plurality of upper terminals with the same structure, and the lower row terminal 312 is composed of a plurality of lower terminals with the same structure, wherein: the upper terminal comprises a fixed section 3111, an elastic section 3112 connected with the front end of the fixed section and an end pin 3113 connected with the rear end of the fixed section, and the upper contact part is positioned on the elastic section of the upper terminal; the lower terminal fixing section 3121 and the elastic section 3122 of the front end of the fixing section are symmetrical to the upper terminal fixing section 3111 and the elastic section 3112, respectively, and the lower contact portion is located at the lower terminal elastic section and symmetrical to the upper contact portion; the lower terminal pin 3123 faces the same direction and has the same height as the upper terminal pin 3113. In this embodiment, each terminal tie plate is formed by stamping, protruding stabs (not labeled) are disposed on two sides of each fixing section, the upper terminal fixing section 3111 is located in the upper terminal hole 141 and is interfered by the protruding stabs to stabilize the upper terminal and the insulator 10 into a whole, the upper terminal elastic section 3112 is located in the signal insertion cavity 12, similarly, the lower terminal fixing section 3121 is located in the lower terminal hole 142 and is interfered by the protruding stabs to stabilize the lower terminal and the insulator 10 into a whole, the lower terminal sub-elastic section 3122 is located in the signal insertion cavity 12, if an external force is applied (if an external signal element is inserted into the signal insertion cavity 12), the upper terminal sub-elastic section 3112 elastically moves between the upper groove 121 or the upper groove and the signal insertion cavity, and the opposite lower terminal sub-elastic section 3122 elastically moves between the lower groove 122 or the lower groove and the signal insertion cavity. The rear cover 32 is formed by injection molding and comprises a main body 321 which is matched with the rear notch 19 of the hole in a packaging mode and a buckle plate 322 which is flush with the upper plane of the main body and extends forwards, wherein the buckle plate 322 is downwards provided with a buckle block 323 and two sides are respectively provided with a buckle 324. In this embodiment, the rear cover 32 is fastened on the supporting plate 191 through the fastening plate 322, the fastening block 323 is fastened in the fastening groove 192, and the two side fasteners 324 interfere with the corresponding structures on the inner side of the hole tail 16 and the partition 17 corresponding to the inner side of the hole tail to seal the hole rear notch 19 and cover and assist in stably fastening the tail of the plug assembly 31, thereby achieving the purpose of effectively protecting the electrical components. In this example, a bending part (f) is arranged between the lower terminal pin and the fixing section connected with the lower terminal pin, and the lower terminal pin is vertically downward through the bending part; the upper terminal pin and the fixing section connected with the upper terminal pin are also provided with a bending part (F), the lower terminal pin and the upper terminal pin are enabled to face towards the same direction through the bending part, the lower terminal pin and the free end (z) end face of the upper terminal pin are in the same plane, then the cover is formed by injection molding and comprises a main body part which is provided with a notch 19 behind an encapsulation type adapting hole and a pinch plate part which is flush with the upper plane of the main body part and extends forwards, and a buckling block 323 which is buckled into the clamping groove 192 is formed downwards along the front side surface of the pinch plate part. The lower surface of the rear cover main body 321 is hollowed out upwards to form a terminal groove 324 with a front notch (not labeled) and a lower notch (not labeled), the upper and lower terminals comprise a fixing section rear half section, a bending section and terminal pins which are all positioned in the terminal groove 324, wherein the free end of each terminal pin extends out of the terminal groove downwards.

In the foregoing embodiments, the descriptions of the respective embodiments have their respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or recited in detail in a certain embodiment.

It should be noted that the above embodiments can be freely combined as necessary. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present invention.

Claims (10)

1. An electrical connector comprises an insulator and an electrical component, and is characterized in that:

the insulator comprises a containing cavity communicated with the electric plug cavity, the upper wall of the electric plug cavity is provided with an upper groove, the opposite lower wall of the electric plug cavity is provided with a lower groove, the electric component comprises a contact group and a rear seat, the contact group comprises an inner contact pair and an outer contact pair, the inner contact pair comprises two inner contact pieces, and the outer contact pair comprises two outer contact pieces respectively stacked on the outer sides of the two inner contact pieces; the rear seat is adapted to the cavity and comprises an upper contact groove and a lower contact groove, and the upper contact groove stabilizes an inner contact and an outer contact so that the arm of the inner contact and the arm of the outer contact are suspended in the upper groove; the lower contact slot secures the other inner contact and the other outer contact such that the arms of the other inner contact and the arms of the other outer contact overhang the lower slot; the arm length of the outer contact is greater than the arm length of the inner contact, and each arm is formed with a contact portion near the free end, wherein: the contact parts of the two inner contacts extend inwards symmetrically and are suspended in the plug cavity, and the contact parts of the two outer contacts extend inwards symmetrically and are positioned in front of the contact parts of the two inner contacts in the plug cavity.

2. The electrical connector of claim 1, wherein:

the upper contact component groove is provided with a positive inclined plane, the lower contact component groove is provided with a back inclined plane, an inner contact component and an outer contact component are respectively provided with an inclined section of the positive inclined plane in adaptation, the other inner contact component and the other outer contact component are respectively provided with an inclined section of the back inclined plane in adaptation, the length of the inclined section of the positive inclined plane in adaptation is smaller than that of the inclined section of the back inclined plane in adaptation, and each inclined section extends backwards from the forward connecting arm to form a guide part.

3. The electrical connector of claim 2, wherein:

the appearance chamber divide into front chamber and back chamber, and the upper trough has the top, and the lower trough has the bottom, and the height of front chamber is not less than the height of inserting chamber upper wall to lower wall and is not more than the height of upper groove top to lower trough bottom, wherein:

a stopping surface is formed above the rear cavity, an upper clamping hole is formed on the upper wall of the rear cavity which is close to the stopping surface, and a lower clamping hole is formed on the lower wall of the rear cavity relative to the upper clamping hole.

4. The electrical connector of claim 3, wherein:

the upper contact piece groove is provided with an upper front groove and an upper rear groove, the positive inclined plane is connected between the upper front groove and the upper rear groove, the lower contact piece groove is provided with a lower front groove and a lower rear groove, and the back inclined plane is connected between the lower front groove and the lower rear groove, so that the rear seat is of a front-low back-high structure with a middle inclined plane; an upper clamping block matched with the upper clamping hole is protruded on the groove wall close to the positive inclined plane, and a lower clamping block matched with the lower clamping hole is arranged on the groove wall close to the back inclined plane; the upper front groove and the opposite lower front groove are positioned in the front cavity, the forward inclined groove wall comprises a front surface and an upper surface, the front surface of the forward inclined groove wall supports against a stop surface, and the upper surface of the forward inclined groove wall supports against the upper wall of the rear cavity.

5. The electrical connector of claim 4, wherein:

electric connector still includes the signal subassembly, and the insulator still includes that the signal inserts the chamber and inserts the communicating terminal hole in chamber with the signal, and the chamber is inserted in the signal side by side in the chamber one side is inserted to the electrical property, wherein:

the upper wall of the signal plug cavity is provided with an upper groove, and the lower wall of the signal plug cavity is provided with a lower groove;

the terminal holes comprise upper terminal holes and lower terminal holes, the upper terminal holes are communicated with the upper groove, the top of the upper terminal holes is horizontal to the top of the upper groove, the lower terminal holes are connected with the lower groove, and the bottom of the lower terminal holes is horizontal to the bottom of the lower groove;

the signal assembly comprises a plug-in set, the plug-in set comprises an upper terminal and a lower terminal, the upper terminal comprises a fixed section, an elastic section connected to the front end of the fixed section and an end pin connected to the rear end of the fixed section, and the bullet section at the upper end is provided with a contact part; the lower terminal comprises a fixed section, an elastic section connected to the front end of the fixed section and an end pin connected to the rear end of the fixed section, and the lower terminal bullet section is provided with a contact part which is symmetrical to the contact part of the upper terminal.

6. The electrical connector of claim 5, wherein:

go up terminal canned paragraph both sides and lower terminal canned paragraph both sides and have protruding thorn respectively, wherein:

the upper terminal fixing section is positioned in the upper terminal hole and fixes the upper terminal on the insulator through the interference of the convex thorns, so that the bullet section at the upper end is positioned in the upper groove and the contact part of the upper terminal is positioned in the signal insertion cavity;

the lower terminal fixing section is positioned in the lower terminal hole and enables the lower terminal to be fixed on the insulator through protruding thorn interference, so that the lower terminal sub-elastic section is positioned in the lower groove, and the lower terminal contact part is symmetrical to the upper terminal contact part in the signal insertion cavity.

7. The electrical connector of claim 6, wherein:

a bending part is arranged between the lower terminal pin and the fixing section connected with the lower terminal pin, and the lower terminal pin is vertically downward through the bending part;

a bending part is arranged between the upper terminal pin and the fixing section connected with the upper terminal pin, and the lower terminal pin and the upper terminal pin are in the same direction through the bending part and form the same plane with the free end surface of the upper terminal pin.

8. The electrical connector of claim 7, wherein:

the insulator forms the breach at the back, and the breach is including being in the breach behind the chamber that holds the chamber rear and being in the hole breach behind terminal hole rear, has baffle portion behind the chamber between breach and the hole breach, wherein:

the cavity rear gap is communicated with the rear cavity, the electric component is divided into a front half part and a rear half part, the front half part is adapted to the containing cavity, and the rear half part is sealed in the cavity rear gap;

and the front surface of the supporting plate is recessed in the front surface of the insulator so that the front surface of the supporting plate and the front surface of the insulator form a step surface.

9. The electrical connector of claim 8, wherein:

the front surface of the insulator is downwards provided with a clamping groove with a related supporting plate, the length of the clamping groove is the same as that of the supporting plate, and the depth of the clamping groove is lower than that of the front surface of the supporting plate, so that the groove wall on the rear side of the clamping groove and the front side wall of the supporting plate form a coplanar surface.

10. The electrical connector of claim 9, wherein:

further including the back lid, the back lid is the formation of moulding plastics and includes the main part of breach behind the encapsulation form adaptation hole and the buckle portion that the plane extends forward on flushing the main part, is formed with the knot piece of detaining the draw-in groove along buckle portion leading flank downwards, upwards fretwork below the main part and form the terminal groove that has preceding notch and lower notch, and upper and lower terminal includes half section behind the canned paragraph, kink and end foot and all is in the terminal groove, and wherein each end foot free end stretches out the terminal groove downwards.

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