CN216794152U

CN216794152U - Shielding case, connector and connector assembly

Info

Publication number: CN216794152U
Application number: CN202220244735.9U
Authority: CN
Inventors: 孙永强; 姜开轩; 伍壮志; 潘友伟
Original assignee: Tyco Electronics Shanghai Co Ltd; Tyco Electronics Suzhou Ltd
Current assignee: Tyco Electronics Shanghai Co Ltd; Tyco Electronics Suzhou Ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2022-06-21
Anticipated expiration: 2032-01-29

Abstract

The utility model discloses a shield case, a connector and a connector assembly. The shield case includes: a top wall; a bottom wall; a pair of side walls respectively connected between both sides of the top wall and the bottom wall; and an end wall connected between one ends of the pair of side walls, a portion of the bottom wall near the end wall being removed to form a mating opening for mating with the mating shield shell, the mating opening including a first edge portion formed on the bottom wall and a second edge portion defined by bottom edges of the pair of side walls and the end wall, a contact spring being formed on each of the pair of side walls and the end wall, and an elastic flanging portion being formed on the first edge portion of the bottom wall. When the mating shield shell is inserted into the mating opening of the shield shell, the contact spring piece and the elastic flanging part are in electrical contact with the mating shield shell. In the utility model, the side wall and the bottom wall of the shielding shell can be electrically contacted with the matching shielding shell, thereby improving the electromagnetic shielding effect.

Description

Shielding case, connector and connector assembly

Technical Field

The present invention relates to a shield shell, a connector including the shield shell, and a connector assembly including the connector.

Background

In the related art, a high-voltage connector generally includes a housing, a shield shell, a terminal, and a terminal holding body. The shield case is mounted in the housing. The terminal is inserted into the terminal holding body. The terminal holding body is inserted into the shield shell. For an L-shaped connector, a mating opening adapted to be mated with a mating shield shell of a mating connector is generally formed on a bottom wall of the shield shell. In order to make electrical contact with the mating shield shell, in the prior art, contact spring pieces are generally formed on the side wall and the end wall of the shield shell, and when the mating shield shell is inserted into the mating opening of the shield shell, the contact spring pieces on the side wall and the end wall of the shield shell make electrical contact with the mating shield shell, but no contact spring piece capable of making electrical contact with the mating shield shell is provided on the bottom wall of the shield shell, which may reduce the electromagnetic shielding effect.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to addressing at least one of the problems and deficiencies in the prior art.

According to an aspect of the present invention, there is provided a shield case including: a top wall; a bottom wall; a pair of side walls connected between both sides of the top wall and the bottom wall, respectively; and an end wall connected between one ends of the pair of side walls, a portion of the bottom wall near the end wall being removed to form a mating opening for mating with a mating shield shell, the mating opening including a first edge portion formed on the bottom wall and a second edge portion defined by bottom edges of the pair of side walls and the end wall, a contact spring being formed on each of the pair of side walls and the end wall, and an elastic flanging portion being formed on the first edge portion of the bottom wall. When the matching shielding shell is inserted into the matching opening of the shielding shell, the contact elastic sheet and the elastic flanging part are in electrical contact with the matching shielding shell.

According to an exemplary embodiment of the utility model, the end wall comprises: a first endwall portion perpendicular to the sidewall; and the second end wall part is connected between the first end wall part and the side wall, the second end wall part is inclined to the side wall and the first end wall part, and the contact elastic sheet is formed on the first end wall part and the second end wall part.

According to another exemplary embodiment of the present invention, the contact dome comprises: a first contact spring formed on the first end wall portion; and the second contact elastic sheet is formed on the second end wall part and is different from the first contact elastic sheet.

According to another exemplary embodiment of the present invention, the contact dome further includes a plurality of third contact domes formed on the pair of sidewalls, the plurality of third contact domes being identical to each other and symmetrically distributed on both sides of the shield case; the contact elastic sheet is a finger-shaped contact elastic sheet.

According to another exemplary embodiment of the present invention, the shield case further has an insertion opening opposed to the end wall to allow a terminal holding body of the cable assembly to be inserted into the shield case through the insertion opening; elastic contact pieces adapted to electrically contact with shield connectors of a cable assembly inserted into the insertion port are formed on four walls of the insertion port of the shield shell, respectively.

According to another exemplary embodiment of the utility model, the first edge portion comprises: a straight edge portion perpendicular to the side wall; and a bevel portion inclined to the side wall and connected between the straight portion and the side wall, the elastic burring portion being formed on both the straight portion and the bevel portion.

According to another exemplary embodiment of the utility model, the elastic cuff comprises: a first elastic burring part formed on the straight part; and a second elastic cuff part formed on the bevel part, and the second elastic cuff part is different from the first elastic cuff part.

According to another exemplary embodiment of the present invention, the first elastic burring part is curled from the straight side part toward the inside of the shield shell, and the second elastic burring part is curled from the slanted side part toward the outside of the shield shell.

According to another exemplary embodiment of the present invention, the first elastic burring part has a circular arc-shaped cross section having a first central angle, the second elastic burring part has a circular arc-shaped cross section having a second central angle, and the first central angle is smaller than the second central angle.

According to another exemplary embodiment of the present invention, the first central angle is larger than 90 degrees and smaller than 180 degrees, and the second central angle is larger than 180 degrees and smaller than 270 degrees.

According to another aspect of the present invention, there is provided a shield case including: a top wall; the bottom wall is provided with a matching opening to allow the matching shielding shell to pass through; and a side wall connected between the top wall and the bottom wall; a plurality of contact spring pieces are respectively formed on the bottom wall and the side wall. When the matching shielding shell is inserted into the matching opening of the shielding shell, the contact spring sheet is abutted and electrically contacted with the matching shielding shell.

According to an exemplary embodiment of the present invention, the side wall is provided with a plurality of side walls, and each side wall is provided with at least one contact spring.

According to another aspect of the present invention, there is provided a connector including: a housing having an interior cavity; the shielding shell is inserted into the inner cavity of the shell; and a cable assembly inserted into the housing.

According to an exemplary embodiment of the present invention, the cable assembly includes: a terminal holding body formed with a terminal insertion slot; a terminal inserted into the terminal insertion slot of the terminal holding body; a cable having one end electrically connected to the terminal; and a shield connecting member having one end electrically connected to the shield layer of the cable and the other end electrically contacted to the shield shell, the terminal holding body being inserted into the shield shell.

According to another exemplary embodiment of the present invention, the housing has a first insertion port to be mated with a mating connector and a second insertion port for inserting the cable assembly, and axes of the first insertion port and the second insertion port are perpendicular to each other.

According to another aspect of the present invention, there is provided a connector assembly comprising: the aforementioned connector; and a mating connector adapted to mate with the connector.

According to an exemplary embodiment of the utility model, the mating connector comprises: a mating housing adapted to mate with a housing of the connector; and the matching shielding shell is suitable for matching with the shielding shell of the connector, the matching shielding shell is inserted into the matching opening of the shielding shell, and the contact elastic sheet on the shielding shell is electrically contacted with the outer surface of the peripheral wall of the matching shielding shell.

According to another exemplary embodiment of the present invention, the peripheral wall of the mating shield shell includes: the first peripheral wall part is electrically contacted with the contact elastic sheets on the side wall and the end wall of the shielding shell; the second peripheral wall part is electrically contacted with the contact elastic sheet on the straight edge part of the bottom wall of the shielding shell; and a third peripheral wall portion electrically contacting the contact spring piece on the oblique edge portion of the bottom wall of the shielding shell.

According to another exemplary embodiment of the present invention, an upper portion of the first peripheral wall portion extends beyond the second peripheral wall portion and the third peripheral wall portion in the axial direction of the counterpart shield shell to be able to electrically contact with contact springs formed on the side walls and the end walls of the shield shell.

According to another exemplary embodiment of the present invention, the mating shield shell further includes a plurality of connection pins adapted to electrically contact the mounting panel, the plurality of connection pins being connected to a bottom edge of the peripheral wall of the mating shield shell.

In each of the foregoing exemplary embodiments according to the present invention, both the side wall and the bottom wall of the shield case can be electrically contacted with the counterpart shield case, thereby improving the electromagnetic shielding effect.

Other objects and advantages of the present invention will become apparent from the following description of the utility model which refers to the accompanying drawings, and may assist in a comprehensive understanding of the utility model.

Drawings

FIG. 1 shows a perspective view of a connector assembly according to an exemplary embodiment of the present invention, wherein the connector and a mating connector are assembled together;

FIG. 2 shows a perspective view of a connector assembly according to an example embodiment of the utility model, with the connector and mating connector separated;

FIG. 3 shows an exploded schematic view of a connector assembly according to an example embodiment of the utility model;

fig. 4 shows an assembly schematic of a shield case and a counterpart shield case according to an exemplary embodiment of the present invention;

fig. 5 shows an exploded schematic view of a shield case and a mating shield case according to an exemplary embodiment of the present invention;

fig. 6 shows an exploded schematic view of a shield shell and a counterpart shield shell according to an exemplary embodiment of the present invention, viewed from another direction;

fig. 7 shows a schematic perspective view of a shield case according to an exemplary embodiment of the present invention;

fig. 8 shows a perspective view of a mating shield shell according to an exemplary embodiment of the present invention.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the utility model with reference to the drawings is intended to illustrate the general inventive concept and should not be taken as limiting the utility model.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.

According to one general technical concept of the present invention, there is provided a shield case including: a top wall; a bottom wall; a pair of side walls connected between both sides of the top wall and the bottom wall, respectively; and an end wall connected between one ends of the pair of side walls, a portion of the bottom wall near the end wall being removed to form a mating opening for mating with a mating shield shell, the mating opening including a first edge portion formed on the bottom wall and a second edge portion defined by bottom edges of the pair of side walls and the end wall, a contact spring being formed on each of the pair of side walls and the end wall, and an elastic flanging portion being formed on the first edge portion of the bottom wall. When the matching shielding shell is inserted into the matching opening of the shielding shell, the contact elastic sheet and the elastic flanging part are in electrical contact with the matching shielding shell.

According to another general technical concept of the present invention, there is provided a shield case including: a top wall; the bottom wall is provided with a matching opening to allow the matching shielding shell to pass through; and a side wall connected between the top wall and the bottom wall; a plurality of contact spring pieces are respectively formed on the bottom wall and the side wall. When the matching shielding shell is inserted into the matching opening of the shielding shell, the contact spring sheet is abutted and electrically contacted with the matching shielding shell.

Fig. 1 shows a perspective view of a connector assembly according to an exemplary embodiment of the present invention, in which a connector 10 and a counterpart connector 20 are assembled together; fig. 2 shows a perspective view of a connector assembly according to an exemplary embodiment of the present invention, in which the connector 10 and the counterpart connector 20 are separated.

As shown in fig. 1 and 2, in the illustrated embodiment, the connector assembly includes a connector 10 and a mating connector 20 adapted to mate with the connector 10.

Fig. 3 shows an exploded schematic view of a connector assembly according to an example embodiment of the utility model.

As shown in fig. 1 to 3, in the illustrated embodiment, the connector 10 includes a housing 100 and a shield shell 11. The shield case 11 is inserted into the inner cavity of the housing 100. The mating connector 20 includes a mating housing 200 and a mating shield shell 21. The mating housing 200 is adapted to mate with the housing 100, and the mating shield shell 21 is adapted to mate with the shield shell 11.

Fig. 4 shows an assembly schematic view of the shield shell 11 and the counterpart shield shell 21 according to an exemplary embodiment of the present invention; fig. 5 shows an exploded schematic view of the shield shell 11 and the counterpart shield shell 21 according to an exemplary embodiment of the present invention; fig. 6 shows an exploded schematic view of the shield shell 11 and the counterpart shield shell 21 according to an exemplary embodiment of the present invention, viewed from another direction; fig. 7 shows a schematic perspective view of a shield case 11 according to an exemplary embodiment of the present invention.

As shown in fig. 1 to 7, in the illustrated embodiment, the shield case 11 includes: a top wall 111, a bottom wall 112, a pair of side walls 113 and an end wall 114. A pair of side walls 113 are connected between both sides of the top wall 111 and the bottom wall 112, respectively. The end wall 114 is connected between one ends of the pair of side walls 113.

As shown in fig. 1 to 7, in the illustrated embodiment, a portion of the bottom wall 112 near the end wall 114 is removed to form a mating opening 1101 that mates with the mating shield shell 21. The mating opening 1101 includes a first edge portion 1111 formed on the bottom wall 112 and a second edge portion 1112 defined by the bottom edges of the pair of side walls 113 and the end wall 114.

As shown in fig. 1 to 7, in the illustrated embodiment, contact springs 11a, 11 a', 11a ″ are formed on each of a pair of side walls 113 and end walls 114, and

elastic burring portions

11b, 11c are formed on the first edge portion 1111 of the bottom wall 112. When the counterpart shield shell 21 is inserted into the counterpart opening 1101 of the shield shell 11, the

contact domes

11a, 11 a', 11a ″ and the

elastic burring portions

11b, 11c are in electrical contact with the counterpart shield shell 21. Thus, the bottom wall 112, the side wall 113, and the end wall 114 of the shield shell 11 are all allowed to electrically contact the counterpart shield shell 21, which can improve the electromagnetic shielding effect.

As shown in fig. 1 to 7, in the illustrated embodiment, the end wall 114 of the shield case 11 includes: a first endwall portion 114a and a second endwall portion 114 b. The first end wall portion 114a is perpendicular to the side wall 113. The second end wall portion 114b is connected between the first end wall portion 114a and the side wall 113. The second end wall portion 114b is inclined to the side wall 113 and the first end wall portion 114a, and contact springs 11 a', 11a ″ are formed on both the first end wall portion 114a and the second end wall portion 114 b.

As shown in fig. 1 to 7, in the illustrated embodiment, the

contact dome

11a, 11 a', 11a ″ includes: a first contact dome 11 a' and a second contact dome 11a ". The first contact dome 11 a' is formed on the first end wall portion 114 a. The second contact dome 11a "is formed on the second end wall portion 114b, and the second contact dome 11 a" is different from the first contact dome 11 a'.

As shown in fig. 1 to 7, in the illustrated embodiment, the

contact dome

11a, 11 a', 11a ″ further includes a plurality of third contact domes 11a formed on the pair of sidewalls 113, and the plurality of third contact domes 11a are identical to each other and symmetrically distributed on both sides of the shield case 11.

As shown in fig. 1 to 7, in the illustrated embodiment, the first contact dome 11a, the second contact dome 11 a', and the third contact dome 11a ″ are finger-shaped contact domes. However, the present invention is not limited thereto, and the contact springs 11a, 11 a', 11a ″ may have other suitable shapes. In the illustrated embodiment, the

elastic flanging parts

11b and 11c are contact springs of another type, and therefore, the first contact spring 11a, the second contact spring 11 a', and the third contact spring 11a ″ may also have elastic contact structures similar to the

elastic flanging parts

11b and 11 c.

As shown in fig. 1 to 7, in the illustrated embodiment, the shield shell 11 further has an insertion opening 1102 opposed to the end wall 114 to allow the terminal holder 121 of the cable assembly 12 to be inserted into the shield shell 11 through the insertion opening 1102.

As shown in fig. 1 to 7, in the illustrated embodiment, elastic contact pieces 11d are formed on four walls of an insertion port 1102 of a shield shell 11, respectively, the elastic contact pieces 11d being adapted to electrically contact with a shield connector 125 of a cable assembly 12 inserted into the insertion port 1102.

As shown in fig. 1-7, in the illustrated embodiment, the first edge portion 1111 includes: a straight edge portion 112a and a beveled edge portion 112 b. The straight portion 112a is perpendicular to the side wall 113. The chamfered portion 112b is inclined to the side wall 113 and is connected between the straight portion 112a and the side wall 113. Elastic burring

portions

11b and 11c are formed on both the straight edge portion 112a and the beveled edge portion 112b of the bottom wall 112.

As shown in fig. 1 to 7, in the illustrated embodiment, the

elastic cuff portions

11b, 11c include: a first elastic cuff 11b and a second elastic cuff 11 c. A first elastic burring 11b is formed on the straight edge portion 112 a. The second elastic burring part 11c is formed on the hypotenuse part 112b, and the second elastic burring part 11c is different from the first elastic burring part 11 b.

As shown in fig. 1 to 7, in the illustrated embodiment, the first elastic burring part 11b is curled from the straight edge part 112a of the bottom wall 112 toward the inside of the shield case 11, and the second elastic burring part 11a is curled from the hypotenuse part 112b of the bottom wall 112 toward the outside of the shield case 11.

As shown in fig. 1 to 7, in the illustrated embodiment, the first elastic burring part 11b has a circular arc shape in cross section having a first central angle, the second elastic burring part 11c has a circular arc shape in cross section having a second central angle, and the first central angle is smaller than the second central angle. In one exemplary embodiment of the utility model, the first central angle is greater than 90 degrees and less than 180 degrees and the second central angle is greater than 180 degrees and less than 270 degrees. However, the present invention is not limited thereto, and the first central angle and the second central angle may be appropriately designed according to the actual situation.

As shown in fig. 1-7, in one exemplary embodiment of the utility model, a housing assembly is also disclosed. The housing assembly includes: a housing 100 and the aforementioned shield case 11. The housing 100 has an internal cavity. The shield case 11 is inserted into the inner cavity of the housing 100.

In one exemplary embodiment of the present invention, as shown in fig. 1-7, a connector is also disclosed. The connector includes: the aforementioned housing assembly and cable assembly 12. The cable assembly 12 is inserted into the housing 100 of the housing assembly.

As shown in fig. 1-7, in the illustrated embodiment, the cable assembly 12 includes: a terminal holder 121, a terminal (not shown), and a cable 122. The terminal holding body 121 is formed with a terminal insertion groove. The terminals are inserted into the terminal insertion grooves of the terminal holding body 121. One end of the cable 122 is electrically connected to the terminal. The terminal holding body 121 is inserted into the shield shell 11 of the housing assembly.

As shown in fig. 1-7, in the illustrated embodiment, the cable assembly 12 further includes a shield connector 125. One end of the shield connector 125 is electrically connected to the shield layer of the cable 122, and the other end is electrically contacted to the shield shell 11.

As shown in fig. 1-7, in the illustrated embodiment, the cable assembly 12 further includes: a cable mount 123 and a cable seal 124. A cable fixture 123 is fitted over the cable 122 for securing the cable 122 to the housing 100. A cable seal 124 is fitted over the cable 122 for sealing the gap between the cable 122 and the housing 100.

As shown in fig. 1 to 7, in the illustrated embodiment, the housing 100 has a first insertion port 101 for mating with the mating connector 20 and a second insertion port 102 for inserting the cable assembly 12, and axes of the first insertion port 101 and the second insertion port 102 are perpendicular to each other.

In one exemplary embodiment of the present invention, as shown in fig. 1-7, a connector assembly is also disclosed. The connector assembly includes: the connector 10 described above and a mating connector 20 adapted to mate with the connector 10.

Fig. 8 shows a perspective view of the mating shield shell 21 according to an exemplary embodiment of the present invention.

As shown in fig. 1 to 8, in the illustrated embodiment, the mating connector 20 includes: the mating housing 200, the mating shield shell 21, and the mating terminal 220. The mating housing 200 is adapted to mate with the housing 100 of the connector 10. The mating shield shell 21 is adapted to mate with the shield shell 11 of the connector 10. The mating terminals 220 are adapted to mate with terminals of the connector 10. The mating shield shell 21 is inserted into the mating opening 1101 of the shield shell 11, and the contact springs 11a, 11 a', 11a ″ on the shield shell 11 are in electrical contact with the outer surface of the peripheral wall 210 of the mating shield shell 21.

As shown in fig. 1 to 8, in the illustrated embodiment, the peripheral wall 210 of the mating shield shell 21 includes: a first peripheral wall portion 211, a second peripheral wall portion 212, and a third peripheral wall portion 213. The first peripheral wall 211 of the mating shield shell 21 is in electrical contact with the contact springs 11a, 11 a', 11a ″ on the side wall 113 and the end wall 114 of the shield shell 11. The second peripheral wall portion 212 of the mating shield shell 21 is in electrical contact with the contact spring pieces 11b on the straight edge portion 112a of the bottom wall 112 of the shield shell 11. The third peripheral wall portion 213 of the mating shield shell 21 is in electrical contact with the contact spring pieces 11c on the beveled edge portion 112b of the bottom wall 112 of the shield shell 11.

As shown in fig. 1 to 8, in the illustrated embodiment, an upper portion of the first peripheral wall portion 211 of the mating shield shell 21 extends beyond the second peripheral wall portion 212 and the third peripheral wall portion 213 in the axial direction of the mating shield shell 21 to be able to electrically contact the

contact domes

11a, 11 a', 11a ″ formed on the side wall 113 and the end wall 114 of the shield shell 11.

As shown in fig. 1 to 8, in the illustrated embodiment, the mating shield shell 21 further includes a plurality of connection pins 214 adapted to electrically contact the mounting panel, the plurality of connection pins 214 being connected to a bottom edge of the peripheral wall 210 of the mating shield shell 21. In the illustrated embodiment, the connection legs 214 are bent outward by 90 degrees with respect to the peripheral wall 210 of the counterpart shield shell 21 and exposed from the bottom surface of the counterpart housing 200 to be electrically contacted with the mounting panel.

As shown in fig. 1 to 8, in an exemplary embodiment of the present invention, a shield case 11 is also disclosed. The shield case 11 includes: a top wall 111, a bottom wall 112, and side walls 113, 114 (in this embodiment, the aforementioned pair of side walls 113 and end wall 114 are both considered as side walls). The bottom wall 112 is provided with a mating opening 1101 to allow the mating shield shell 21 to pass through. The

side walls

113, 114 are connected between the top wall 111 and the bottom wall 112. A plurality of

contact springs

11a, 11 a', 11a ", 11b, 11c are formed on the bottom wall 112 and the

side walls

113, 114, respectively. When the mating shield shell 21 is inserted into the mating opening 1101 of the shield shell 11, the

contact domes

11a, 11 a', 11a ″, 11b, 11c abut against and electrically contact the mating shield shell 21.

As shown in fig. 1 to 8, in the illustrated embodiment, there are a plurality of

side walls

113 and 114, and each of the

side walls

113 and 114 is provided with at least one

contact spring

11a, 11 a', and 11a ″.

It will be appreciated by those skilled in the art that the above described embodiments are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without structural or conceptual conflicts, and that such modifications are intended to fall within the scope of the present invention.

Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of preferred embodiments of the present invention and should not be construed as limiting the utility model.

Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Furthermore, any reference signs to elements of the claims shall not be construed as limiting the scope of the utility model.

Claims

1. A shield shell, comprising:

a top wall;

a bottom wall;

a pair of side walls connected between both sides of the top wall and the bottom wall, respectively; and

an end wall connected between one ends of the pair of side walls,

a portion of the bottom wall near the end wall is removed to form a mating opening that mates with a mating shield shell, the mating opening including a first edge portion formed on the bottom wall and a second edge portion defined by the pair of side walls and a bottom edge of the end wall,

a contact spring is formed on each of the pair of side walls and the end wall, and an elastic flanging part is formed on a first edge part of the bottom wall,

when the matching shielding shell is inserted into the matching opening of the shielding shell, the contact elastic sheet and the elastic flanging part are in electrical contact with the matching shielding shell.

2. The shield case according to claim 1, characterized in that:

the end wall includes:

a first endwall portion perpendicular to the sidewall; and

a second endwall portion connected between the first endwall portion and the sidewall,

the second end wall portion is inclined to the side wall and the first end wall portion, and the contact spring pieces are formed on both the first end wall portion and the second end wall portion.

3. The shield case according to claim 2, characterized in that:

the contact spring piece comprises:

a first contact spring formed on the first end wall portion; and

the second contact elastic sheet is formed on the second end wall part and is different from the first contact elastic sheet.

4. The shield case according to claim 3, characterized in that:

the contact spring pieces further comprise a plurality of third contact spring pieces formed on the pair of side walls, and the plurality of third contact spring pieces are identical to each other and are symmetrically distributed on two sides of the shielding shell;

the first, second and third contact springs are finger-shaped contact springs.

5. The shield case according to claim 1, characterized in that:

the shield case further has an insertion opening opposed to the end wall to allow a terminal holding body of a cable assembly to be inserted into the shield case via the insertion opening;

elastic contact pieces adapted to electrically contact with shield connectors of a cable assembly inserted into the insertion port are formed on four walls of the insertion port of the shield shell, respectively.

6. The shield shell according to any one of claims 1 to 5, wherein:

the first edge portion includes:

a straight edge portion perpendicular to the side wall; and

a bevel portion inclined to the side wall and connected between the straight portion and the side wall,

the elastic burring portion is formed on both the straight edge portion and the bevel edge portion.

7. The shield case according to claim 6, wherein:

the elastic cuff portion includes:

a first elastic burring part formed on the straight part; and

a second elastic cuff portion formed on the bevel portion, and the second elastic cuff portion being different from the first elastic cuff portion.

8. The shield case according to claim 7, characterized in that:

the first elastic burring part is curled from the straight edge part toward the inside of the shield shell, and the second elastic burring part is curled from the beveled edge part toward the outside of the shield shell.

9. The shield case according to claim 8, characterized in that:

the cross section of the first elastic flanging part is in a circular arc shape with a first central angle, the cross section of the second elastic flanging part is in a circular arc shape with a second central angle, and the first central angle is smaller than the second central angle.

10. The shield case according to claim 9, characterized in that:

the first central angle is greater than 90 degrees and less than 180 degrees, and the second central angle is greater than 180 degrees and less than 270 degrees.

11. A shield shell, comprising:

a top wall;

the bottom wall is provided with a matching opening to allow the matching shielding shell to pass through; and

a side wall connected between the top wall and the bottom wall;

a plurality of contact spring pieces are respectively formed on the bottom wall and the side wall,

when the matching shielding shell is inserted into the matching opening of the shielding shell, the contact spring sheet is abutted and electrically contacted with the matching shielding shell.

12. The shield case according to claim 11, characterized in that:

the side walls are multiple, and at least one contact elastic sheet is arranged on each side wall.

13. A connector, comprising:

a housing having an interior cavity;

the shielding shell of any one of claims 1-12, inserted into an interior cavity of the housing; and

and the cable assembly is inserted into the shell.

14. The connector of claim 13, wherein:

the cable assembly includes:

a terminal holding body formed with a terminal insertion slot;

a terminal inserted into the terminal insertion slot of the terminal holding body;

a cable having one end electrically connected to the terminal; and

a shield connecting member having one end electrically connected to the shield layer of the cable and the other end electrically contacted to the shield case,

the terminal holding body is inserted into the shield shell.

15. The connector according to claim 13 or 14, wherein:

the housing has a first insertion port to be mated with a mating connector and a second insertion port for inserting the cable assembly, and axes of the first insertion port and the second insertion port are perpendicular to each other.

16. A connector assembly, comprising:

the connector of any one of claims 13 to 15; and

a mating connector adapted to mate with the connector.

17. The connector assembly of claim 16, wherein:

the mating connector includes:

a mating housing adapted to mate with a housing of the connector; and

a mating shield shell adapted to mate with a shield shell of the connector,

the matching shielding shell is inserted into the matching opening of the shielding shell, and the contact elastic sheet on the shielding shell is electrically contacted with the outer surface of the peripheral wall of the matching shielding shell.

18. The connector assembly of claim 17, wherein:

the peripheral wall of the mating shield shell includes:

the first peripheral wall part is electrically contacted with the contact elastic sheets on the side wall and the end wall of the shielding shell;

the second peripheral wall part is electrically contacted with the contact elastic sheet on the straight edge part of the bottom wall of the shielding shell; and

and a third peripheral wall portion (213) which is in electrical contact with the contact spring piece on the bevel edge portion of the bottom wall of the shielding shell.

19. The connector assembly of claim 18, wherein:

the upper part of the first peripheral wall part extends beyond the second peripheral wall part and the third peripheral wall part (213) along the axial direction of the matched shielding shell so as to be capable of being electrically contacted with contact elastic sheets formed on the side wall and the end wall of the shielding shell.

20. The connector assembly of claim 18, wherein:

the mating shield shell further includes a plurality of connection pins adapted to electrically contact the mounting panel, the plurality of connection pins being connected to a bottom edge of the peripheral wall of the mating shield shell.