TWM461188U - Card connector assembly - Google Patents

Description

Card connector combination

The present invention discloses a card connector assembly, and more particularly to a card holder assembly with a precise fixing of the drawer seat.

A drawer type card connector disclosed in the Chinese Patent Publication No. M419293, which comprises an insulating body, a plurality of conductive terminals housed in the insulating body, a shielding case covering the insulating body, and a bearing body. The drawer seat of the card and the card ejecting mechanism mounted on the side of the insulative housing, the insulative housing and the shielding shell are arranged to receive the docking space of the drawer seat, and the drawer seat can insert and withdraw the docking space. The two sides of the drawer seat are respectively recessed and formed with a concave portion, and the concave portion is substantially "[" type. A resilient piece is formed on the two sides of the shielding shell, and the elastic piece is bent to form a curved elastic portion that is engaged with the concave portion of the drawer seat, and the surface of the elastic portion has a smooth curved shape. After the drawer seat is inserted into the docking space, the elastic portion of the shielding shell is elastically buckled into the recess of the drawer seat to achieve the fixing of the drawer seat.

However, when the curved elastic portion on the shielding shell of the card connector of the prior art is correspondingly engaged with the concave portion of the drawer seat, the shape of the curved elastic portion and the concave portion are limited, and the two cannot be tightly held. At this time, the drawer seat still has a room for moving back and forth relative to the shielding shell, so that the drawer seat inserted into the docking space cannot be accurately fixed, thereby causing problems such as poor contact between the electronic card and the corresponding circuit board.

Therefore, it is necessary to provide an improved card connector to overcome the above drawbacks.

The purpose of this creation is to provide a card connector assembly in which the drawer seat and the shielding housing are fixed accurately.

In order to achieve the above objective, the present invention adopts the following technical solution: a card connector assembly comprising an insulative housing, a plurality of conductive terminals received in the insulative housing, a shielding housing covering the insulative housing, and a drawer for carrying the electronic card The shielding housing and the insulative housing together form a plug-in space, the shielding housing includes a top plate and a side plate extending from two sides of the top plate, and the side plate protrudes into the insertion space to form an elastic card. a latching portion, the drawer base includes a main body portion having a receiving space, and at least one of the two sides of the main body portion is recessed inwardly to form a latching recess portion corresponding to the elastic snap portion. The drawer seat is inserted into the docking space until the drawer seat is stably held in the docking space. When the drawer seat is inserted into the docking space and reaches the final position, the latching recess and the elastic latching portion abut each other to form a first abutment. When the point is held, the first insertion position is the second insertion position when the drawer seat is inserted into the insertion space and exceeds the final position, and the locking recess and the elastic buckle portion abut each other to form a second abutting point. In the in-position position, when the drawer seat is located between the first insertion position and the second insertion position except the final position, the elastic buckle portion correspondingly resists the locking recess and can drive the drawer seat to the final position .

Further, the elastic buckle portion is provided with two and all of the "<" type, the surface of the elastic buckle portion has a continuous arc shape, and the elastic buckle portion includes a first surface and a second surface connected to each other. .

Further, a side portion is disposed on both sides of the main body portion, and the latching recess portion is provided with two recesses formed inwardly from the outer side surface of the side portion, and the latching recess portion is in a "<" shape, The surface of the retaining recess has a continuous arc shape, and the latching recess includes a first contact surface and a second contact surface that are connected to each other.

Further, the first resisting point is formed by a first contact surface of the elastic latching portion corresponding to the first contact surface of the latching recess, and the second resisting point is corresponding to the second surface of the elastic latching portion. Formed on the second contact surface of the retaining recess.

Further, the drawer seat is located at a first offset from the first insertion position to the front end position of the drawer seat at a final position, and the drawer seat is located between the second insertion position and the drawer seat between the final positions. The offset of the direction is a second offset, and the first offset and the second offset are each no more than 0.3 mm.

Further, when the drawer seat is in the final position, the elastic snap portion on the same side abuts against the latching recess of the drawer seat to form a first support point and a second support point.

Further, the side plate is formed with a snap-up elastic piece, the two ends of the snap-up elastic piece are integrally disposed with the side plate, the snap-up elastic piece is separated from the top plate, and the elastic buckle part is in the middle of the buckle elastic piece Formed into the insertion space.

Further, the insulative housing includes a bottom wall and side walls extending upward from opposite sides of the bottom wall, and each of the side walls is provided with a side notch for elastically deforming the elastic buckle portion corresponding to the elastic buckle portion of the shielding shell.

Further, an anti-reverse insertion structure for preventing the drawer seat from being reversely inserted is provided at a chamfer of the rear end of the main body portion, and the anti-reverse insertion structure is a concave portion formed inwardly from a chamfer of the rear end of the main body portion.

Further, when the drawer seat is inserted into the insertion space and is located between the first insertion position and the second insertion position except the final position, the resistance point between the locking recess and the elastic buckle portion There is always only one.

A card connector is adapted to be inserted into an insertion component, the insertion component comprising a main body portion, at least one side of the two sides of the main body portion is concavely disposed with a locking recess, the card connector comprises an insulating body, and a plurality of a conductive terminal received in the insulative housing and a shielding housing that is shielded on the insulative housing, the shielding housing and the insulative housing together form a plugging space, and the shielding housing includes a top plate and is extended from both sides of the top plate Forming a side panel, the side panel is convexly formed with an elastic buckle portion in the insertion space, and the elastic buckle portion is configured to cooperate with the locking recess of the insertion component; and when the insertion component is inserted into the insertion space When the insertion element is stably held in the docking space, it is defined as a final position. When the insertion element is inserted into the docking space and reaches the final position, and the latching recess and the elastic latching portion abut each other to form a first resisting point, it is defined as the first An insertion position is defined as a second insertion when the insertion member is inserted into the insertion space and exceeds the final position, and the locking recess and the elastic snap portion abut each other to form a second abutment point When the insertion member is inserted into the insertion space and is located between the first insertion position and the second insertion position except the final position, the elastic buckle portion of the shielding shell can correspondingly resist the The retaining recess of the insertion member and the drive insert position can be moved to the final position.

Compared with the prior art, the creative card connector combination has the following beneficial effects: the present invention achieves the insertion of the drawer by inserting the elastic snap portion formed on the shielding shell correspondingly with the locking recess formed on the drawer seat. The position is corrected after the space is taken, so that the drawer seat can be accurately and stably held in the docking space.

100‧‧‧ card connector combination

1‧‧‧Insulating body

11‧‧‧ bottom wall

12‧‧‧ side wall

121‧‧‧ side gap

122‧‧‧Bumps

123‧‧‧ Guided slope

124‧‧‧ Limit bumps

125‧‧‧Resistance surface

13‧‧‧ rear end wall

131‧‧ ‧ post gap

132‧‧‧fixed slot

2‧‧‧Electrical terminals

3‧‧‧Shaded housing

31‧‧‧ top board

32‧‧‧ side panels

321‧‧‧ card holder

322‧‧‧ Limit gap

323‧‧‧welding feet

324‧‧‧Snap snaps

325‧‧‧Flexible buckle

3251‧‧‧ first surface

3252‧‧‧ second surface

33‧‧‧Flexible arm

331‧‧‧End

332‧‧‧Flexible Department

333‧‧‧Resistance

334‧‧‧Contacts

4‧‧‧Switch terminals

41‧‧‧Flexible end

42‧‧‧ fixed end

43‧‧‧Weld Department

5‧‧‧Drawer

50‧‧‧ Main body

51‧‧‧ accommodating space

52‧‧‧Operation Department

53‧‧‧ side

531‧‧‧Loading Department

5322‧‧‧ stop surface

54‧‧‧ front end

55‧‧‧ Back end

551‧‧‧ Guide surface

56‧‧‧Anti-reverse insertion structure

58‧‧‧Card holding recess

581‧‧‧ first contact surface

582‧‧‧Second contact surface

6‧‧‧ gap

71‧‧‧First resistance point

72‧‧‧second point of resistance

81‧‧‧First support point

82‧‧‧second support point

The first figure is a three-dimensional combination diagram of the combination of the creation card connector;

The second figure is a three-dimensional combination diagram of the combination of the creation card connector from another angle;

The third figure is a partial exploded view of the combination of the creative card connector, which shows a state diagram of the drawer seat, the shielding shell and the switch terminal and the insulating body separated;

The fourth figure is a cross-sectional view of the card connector assembly shown in the first figure from the IV-IV line, showing a state diagram before the drawer seat is inserted into the docking space to the final state;

The fifth figure is a cross-sectional view of the card connector assembly shown in the first figure from the IV-IV line, which shows a state diagram when the drawer seat is inserted into the docking space and then inserted.

Figure 6 is a cross-sectional view of the card connector assembly shown in Figure 1 from line IV-IV, showing a state in which the drawer seat is inserted into the docking space to a final state;

The seventh figure is a cross-sectional view taken from line IV-IV after the card connector assembly of the first figure is removed from the drawer seat.

Referring to the first to third figures, the author card connector assembly 100 includes a card connector (not shown) and a plug component (not shown) inserted into the card connector; this embodiment The plug component is a drawer base 5. Of course, in other embodiments, the drawer 5 can also be an electronic card (not shown) or the like. The card connector includes an insulative housing 1, a plurality of conductive terminals 2 received in the insulative housing 1, a shielding shell 3 made of a metal plate and a shielding cover on the insulative housing 1, and a rear end fixed to the insulative housing 1. Switch terminal 4. The shielding housing 3 and the insulative housing 1 together form a docking space (not shown). The drawer seat 5 can be inserted into and out of the docking space. For the sake of description, the end of the card connector inserted into the drawer seat 5 is regarded as the front end, and the other end is regarded as the rear end; in addition, for the uniformity of the full text direction, the plug end of the drawer seat 5 is regarded as the drawer seat. At the rear end of 5, the other end is regarded as the front end.

Referring to the first to third figures, the insulative housing 1 includes a flat bottom wall 11, a side wall 12 extending upward from both sides of the bottom wall 11, and an end wall 13 extending upward from the rear end edge of the bottom wall 11. A side notch 121 is formed in the middle of each of the side walls 12; a plurality of protrusions 122 are formed on the outer side of the side wall 12, and the surface of the protrusions 122 is inclined with a guiding slope 123. The guiding inclined surface 123 is a flat surface. In other embodiments, the guiding inclined surface 123 can also be set as a curved surface according to actual requirements; and a plurality of limiting protrusions 124 are formed on the outer side surface of the sidewall 12 near the protruding block 122. The limiting protrusions 124 are provided with a horizontal abutting surface 125. In this embodiment, the pressing surface 125 is flush with the upper surface of the side wall 12 and the limiting protrusions 124 have a rectangular parallelepiped shape. The back end wall 13 is provided with a notch 131 extending through the insertion space, and the rear notch 131 is for accommodating the switch terminal 4 and providing an elastic deformation space of the switch terminal 4. A fixing groove 132 for receiving the fixed switch terminal 4 is opened at a side of the rear end wall 13 .

Referring to the third embodiment, in the embodiment, the conductive terminal 2 is integrally fixed to the insulative housing 1 , and the portion of the conductive terminal 2 that contacts the electronic card protrudes into the insertion space.

Referring to the first to third figures, the shielding case 3 includes a flat top plate 31, side plates 32 which are bent downwardly from both sides of the top plate 31, and are bent downward by the rear end edge of the top plate 31. The elastic arm portion 33 formed to extend toward the one side plate 32. A latching hole 321 is formed in the side plate 32 , and the latching hole 321 is correspondingly engaged with the bump 122 on the insulative housing 1 . A limiting notch 322 is defined in the position of the side plate 32 adjacent to the holding hole 321 . The limiting notch 322 is correspondingly supported by the limiting protrusion 124 on the insulative housing 1 . The locking hole 321 is engaged with the protrusion 122 and the limiting notch 322 is engaged with the limiting protrusion 124 to achieve stable holding of the shielding shell 3 and the insulating body 1 . The side plate 32 is also horizontally bent and extended to form a plurality of soldering legs 323 connected to a mating circuit board (not shown). A latching tab 324 is formed on the side of the side panel 32 corresponding to the side of the insulative housing 1 . The two ends of the latching tab 324 are integrally disposed with the side panel 32 , and the middle of each of the latching tabs 324 is disposed in the insertion space. An elastic snap portion 325 is formed on the protruding portion. The elastic latching portion 325 can be correspondingly received in the side notch 121 of the insulative housing 1 and can be elastically deformed in the side notch 121 (refer to the seventh figure). The snap tab 324 is disposed separately from the top plate 31 such that the elastic snap portion 325 can be elastically deformed toward the outside of the plug space. In this embodiment, the elastic latching portion 325 is substantially in the shape of a "<", and the surface of the elastic latching portion 325 has a continuous arc shape. The elastic latching portion 325 includes a first surface 3251 and a second surface 3252. The elastic arm portion 33 includes an end portion 331 integrally connected to the top plate 31 of the shielding case 3, an elastic portion 332 extending from the end portion 331 toward the one side plate 32 and obliquely bent in the direction of the insertion space, and an elastic portion The end of the 332 is bent and extended into the insertion space to form an abutting portion 333 for abutting against the drawer seat 5 and a contact portion 334 formed by the end edge of the abutting portion 333 for contacting the switch terminal 4. The elastic portion 332 is located outside the rear end wall 13 of the insulative housing 1 , and the abutting portion 333 is formed by the middle of the rear end wall 13 , and then the notch 131 protrudes into the insertion space.

Referring to the first to third figures, the switch terminal 4 is formed by punching a metal sheet, and includes a flat elastic end 41, a fixed end 42 formed by bending one end of the elastic end 41 and bent at an angle, and The fixed end 42 extends downwardly from the welded portion 43 outside the insulative housing 1. The fixing end 42 is fixed in the fixing groove 132 of the insulative housing 1 , and the elastic end 41 protrudes into the notch 131 after the rear end wall 13 . The contact portion 334 and the abutting portion 333 of the elastic arm portion 33 are both located inside the elastic end 41 of the switch terminal 4 and the contact portion 334 is normally in contact with the elastic end 41. When the drawer seat 5 is normally inserted into the docking space, the abutting portion 333 of the drawer seat 5 against the top elastic arm portion 33 forces the elastic arm portion 33 to be elastically deformed toward the rear end to be in closed contact with the switch terminal 4 to achieve a switching function. The authoring card connector assembly 100 integrally integrates the elastic arm portion 33 with the shield case 3 to reduce the number of parts while saving mold costs. In addition, in the present embodiment, the contact portion 334 of the elastic arm portion 33 is designed to be located inside the elastic end 41 of the switch terminal 4, thereby effectively making the elastic end 41 of the switch terminal 4 away from the top plate 31 of the shield case 3, thereby effectively The switch failure is prevented from occurring due to contact between the elastic end 41 of the switch terminal 4 and the top plate 31 of the shield case 3.

Referring to the first to third figures, the drawer base 5 includes a main body portion 50 provided with a receiving space 51 for receiving an electronic card, and an operation provided integrally with one end of the main body portion 50 to provide a user's grasping and pushing action. Part 52. The main body portion 50 includes two side portions 53 on both sides and a front end portion 54 and a rear end portion 55 at both ends of the vertical connection side portion 53. The accommodating space 51 is formed by the two side portions 53 , the front end portion 54 , and the rear end portion 55 . One of the corners of the accommodating space 51 is formed by the main body portion 50 (not shown). A bearing portion 531 for carrying an electronic card is formed to extend horizontally inside the side portion 53 facing the receiving space 51. The intermediate portion of the side portion 53 is recessed inwardly to form a latching recess 58 that is engaged with the elastic latching portion 325 of the shield housing 3, and the surface of the latching recess 58 is in the embodiment. Continuously curved and roughly "<" type. The latching recesses 58 are respectively formed with a first contact surface 581 and a second contact surface 582 which are connected to each other. The first contact surface 581 and the second contact surface 582 can correspond to the elastic snap portion on the shielding shell 3 . The first surface 3251 of the 325 and the second surface 3252 are abutted to achieve stable holding after the drawer seat 5 is inserted into the docking space.

Referring to the sixth figure, when the drawer seat 5 is inserted into the docking space until the drawer seat 5 is stably held in the docking space, it is the final position. Referring to the fourth figure, when the drawer seat 5 is inserted into the docking space to the final state, the first insertion position is defined. At this time, the elastic latching portion 325 of the shielding shell 3 abuts against the drawer seat 5 . A first abutting point 71 is formed on the retaining recess 58. Referring to the fifth figure, when the drawer seat 5 is inserted into the docking space to the over-inserted state, it is defined as the second insertion position. At this time, the elastic latching portion 325 of the shielding shell 3 is correspondingly abutted to the drawer. A second abutment point 72 is formed on the retaining recess 58 of the seat 5. When the user inserts the drawer seat 5 into the docking space and pushes against the docking space, the elastic latching portions 325 on the two sides of the shielding shell 3 are respectively pushed by the drawer seat 5 to the outside of the docking space. Elastic deformation; in the embodiment, when the drawer seat 5 is inserted into the insertion space and is located between the first insertion position and the second insertion position except the final position, the locking recess and the elastic buckle There is always only one point of contact between the ministries.

Referring to the fourth and fifth figures, in the embodiment, when the drawer seat 5 is pushed to the first insertion position, the first abutment point 71 is correspondingly abutted by the first surface 3251. The contact surface 581 is formed. At this time, the elastic locking portion 325 generates an elastic restoring force F at the first abutting point 71 by the elastic deformation portion, and the elastic restoring force F corresponds to the pushing and holding concave portion 58. And forming a thrust F1 pointing to the final position, the thrust F1 can cause the drawer seat 5 to move further toward the rear end until the drawer seat 5 reaches the final position.

In this embodiment, when the drawer seat 5 is in the final position, a gap 6 is formed between the rear edge of the drawer seat 5 and the rear end wall 13 of the insulating body 1 (refer to the sixth figure), each of which is The elastic latching portion 325 abuts against the latching recess 58 of the drawer base 5 at both sides to form a first support point 81 and a second support point 82. At this time, the elastic latching portion 325 is elastically deformed. At the first support point 81 and the second support point 82, the two thrusts F1 formed at the final position formed by the latching recesses 58 are equally offset in opposite directions, so that the drawer seat 5 is stably held in the front and rear direction in the docking space. .

Referring to the fifth and sixth figures, in the embodiment, when the user insertion force is too large, causing the drawer seat 5 to be inserted into the insertion space to reach the second insertion position, the second abutment point 72 is shown. The second surface 3252 of the elastic latching portion 325 is formed corresponding to the second contact surface 582 of the latching recess 58 . At this time, the elastic latching portion 325 is at the second resisting point of the latching recess 58 due to the elastic deformation. An elastic restoring force F is generated at 72, and the elastic restoring force F corresponds to the pushing recess 58 and forms a thrust F1 pointing to the final position, and the thrust F1 can move the drawer 5 further to the rear end until the drawer 5 reaches Final location.

In the present creation, the positions of the first abutting point 71 and the second abutting point 72 change with the position of the drawer seat 5 in the docking space, that is, between the latching recess 58 and the elastic latching portion 325. The relative position changes. The elastic restoring force F and the thrust F1 generated by the elastic locking portion 325 due to the elastic deformation change with the position of the drawer seat 5 in the insertion space. In addition, when the drawer seat 5 is at a certain position of the docking space, the elastic restoring force F and the thrust F1 are different from the curved shape of the latching recess 58 and the elastic latching portion 325 and the elastic latching portion 325. Material related.

Referring to the fourth to sixth figures, the offset amount of the drawer seat 5 in the front-rear direction between the first insertion position and the drawer seat 5 in the present embodiment is defined as a first offset S1 (in this embodiment). Referring to the fourth figure), the amount of shift in the front-rear direction between the drawer seat 5 in the second insertion position and the drawer seat 5 in the final position is defined as a second offset S2 (refer to FIG. 5). The S1 is equal to S2 and is not more than 0.3 mm. Of course, in other embodiments, the shape and curvature of the first contact surface 581 and the second contact surface 582 of the latching recess 58 are changed or the first of the elastic latching portions 325 is changed. The shape and curvature of the surface 3251 and the second surface 3252 can change the magnitudes of the offsets S1 and S2 accordingly to suit the actual needs.

The present invention can achieve an offset of 0.3 mm before and after the insertion of the drawer seat 5 into the final position by the snap fit of the pair of elastic latching portions 325 corresponding to the latching recesses 58, that is, the position of the drawer seat 5 is inserted into the final position. After the front offset is S1 and the offset is S2, the position of the drawer 5 can be adjusted by the elastic latching portion 325 to the final position to achieve the insertion of the drawer 5 into the docking space. The position is corrected to ensure that the drawer seat 5 is accurately and stably held in the docking space.

In addition, in the embodiment, when the drawer seat 5 is in the final position, two supporting points are formed between the elastic locking portion 325 and the locking recess 58 on the same side, that is, the sixth figure is shown. The first support point 81 and the second support point 82. Of course, in other embodiments, the two support points may be designed to be one or more effects, for example, the bending curvature of the elastic buckle portion 325 is designed to be smaller than the curvature of the locking recess 58 to provide a support point. However, one support point is fixed and unstable, and this embodiment is preferably a design of two support points.

In addition, in the embodiment, the surface of the latching recess 58 of the drawer base 5 and the elastic latching portion 325 of the shielding shell 3 are preferably designed to have a continuous curved shape, and the drawer seat 5 is inserted into the final position within 0.3 mm. The curved design is more advantageous for the elastic snap portion 325 to push the drawer seat 5 to the final position. Of course, in other embodiments, the elastic locking portion 325 can be formed in a rectangular shape, a square shape or a trapezoidal shape, and the shape of the locking recess 58 corresponding to the drawer seat 5 can be designed to be curved or trapezoidal.

In addition, in the embodiment, it is preferable that the surface of the latching concave portion 58 and the elastic latching portion 325 are continuous curved surfaces, the first resisting point 71 and the second resisting point 72, and the first supporting point 81 and the second supporting portion. Point 82 is a line contact. Of course, in other embodiments, the first resisting point 71 and the second abutting point 72 and the first supporting point 81 and the second supporting point 82 are designed to be in surface contact, and an effect can also be achieved.

Referring to the third and fourth figures, a guide surface 551 for guiding the drawer seat 5 to be smoothly inserted into the insertion space is formed at both ends of the rear end portion 55 of the drawer seat 5, and the rear end of the drawer seat 5 is formed. A stopper surface 5322 is formed at one end of the portion 55. An anti-reverse insertion structure 56 is formed at a corner of the main body portion 50 of the drawer base 5 away from the one end of the operation portion 52. The anti-reverse insertion structure 56 is a recessed inward of the main body portion 50 away from one end of the operation portion 52. a recess formed. The anti-reverse insertion structure 56 is composed of a guiding surface 551 and a stopping surface 5322. When the drawer seat 5 of the creative card connector assembly 100 is inserted into the docking space in the reverse direction, the stop surface 5322 of the anti-reverse insertion structure 56 correspondingly resists the sidewalls 12 on both sides of the insulative housing 1 to generate a blocking force to achieve the drawer seat. 5 anti-reverse function.

In summary, this creation is in line with the new patent requirements, and the patent application is filed according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and those who are familiar with the skill of the present invention are equivalent to the equivalent modifications or changes made by the spirit of the present creation. It should be covered by the following patent application.

100‧‧‧ card connector combination

122‧‧‧Bumps

124‧‧‧ Limit bumps

31‧‧‧ top board

32‧‧‧ side panels

323‧‧‧welding feet

324‧‧‧Snap snaps

325‧‧‧Flexible buckle

33‧‧‧Flexible arm

4‧‧‧Switch terminals

51‧‧‧ accommodating space

Claims (11)

A card connector assembly includes an insulative housing, a plurality of conductive terminals received in the insulative housing, a shielding housing covering the insulative housing, and a drawer seat for carrying an electronic card, the shielding housing and the insulative housing being formed together A splicing space includes a top plate and a side plate extending from two sides of the top plate, wherein the side plate protrudes from the insertion space to form an elastic buckle portion, and the drawer seat includes a receiving space The main body portion, at least one side of the main body portion is recessed inwardly to form a latching recess portion corresponding to the snap-fit portion corresponding to the elastic snap portion, and is defined to be stable when the drawer seat is inserted into the docking space to the drawer seat In the final position when the docking space is inserted, when the drawer seat is inserted into the docking space and reaches the final position, and the latching recess and the elastic latching portion abut each other to form the first abutting point, the first insertion position is a second insertion position when the drawer seat is inserted into the docking space and beyond the final position, and the latching recess and the elastic latching portion abut each other to form a second abutting point, wherein the drawer seat is located at the first insertion position Between the insertion position and a second position when any position other than the final position, the resilient locking portion corresponds abutting card holder recess and the seat may be moved to the final position of the drive drawer. The card connector assembly of claim 1, wherein the elastic latching portion is provided with two and all of the "<" type, and the surface of the elastic latching portion has a continuous arc shape, and the elastic card is The buckle portion includes a first surface and a second surface that are connected to each other. The card connector assembly of claim 2, wherein a side portion is disposed on both sides of the main body portion, and the holding recess portion is provided with two and is recessed inwardly from an outer side surface of the side portion. The latching recess has a "<" shape, and the surface of the latching recess has a continuous arc shape, and the latching recess includes a first contact surface and a second contact surface that are connected to each other. The card connector assembly of claim 3, wherein the first abutting point is formed by a first contact surface of the elastic latching portion corresponding to the first contact surface of the latching recess, the second The resisting point is formed by the second surface of the elastic latching portion corresponding to the second contact surface of the latching recess. The card connector assembly according to any one of claims 1 to 4, wherein the drawer seat is located at a first offset from a first insertion position to a front end position of the drawer seat at a first offset The offset amount of the drawer seat in the front-rear direction between the second insertion position and the drawer position is a second offset, and the first offset and the second offset are no more than 0.3 mm. . The card connector assembly according to any one of claims 1 to 4, wherein, when the drawer seat is in the final position, the elastic snap portion on the same side abuts against the latching recess of the drawer seat. The first support point and the second support point. The card connector assembly according to any one of claims 1 to 4, wherein the side plate is formed with a snap tab, and the two ends of the snap tab are integrally provided with the side panel, and the snap tab is The top plate is separated from each other, and the elastic buckle portion is formed by being protruded from the middle of the snap elastic piece into the insertion space. The card connector assembly of any one of claims 1 to 4, wherein the insulative housing comprises a bottom wall and side walls extending upward from both sides of the bottom wall, the corresponding side walls corresponding to the shielding shell The elastic buckle portion is provided with a side gap for elastically deforming the elastic buckle portion. The card connector assembly according to any one of claims 1 to 4, wherein the chamfering of the rear end of the main body portion is provided with an anti-reverse insertion structure for preventing the drawer seat from being reversely inserted, the anti-reverse insertion The structure is a concave portion formed inwardly from a chamfer of the rear end of the main body portion. The card connector assembly of any one of claims 1 to 4, wherein the drawer seat is inserted into the docking space and is located between the first insertion position and the second insertion position except the final position. In one position, there is always only one resistance point between the latching recess and the elastic latching portion. A card connector is adapted to be inserted into an insertion component, the insertion component comprising a main body portion, at least one side of the two sides of the main body portion is concavely disposed with a locking recess, the card connector comprises an insulating body, and a plurality of a conductive terminal received in the insulative housing and a shielding housing that is shielded on the insulative housing, the shielding housing and the insulative housing together form a plugging space, and the shielding housing includes a top plate and is extended from both sides of the top plate Forming a side panel, the side panel is convexly formed with an elastic buckle portion in the insertion space, and the elastic buckle portion is configured to cooperate with the locking recess of the insertion component; and when the insertion component is inserted into the insertion space When the insertion element is stably held in the docking space, it is defined as a final position. When the insertion element is inserted into the docking space and reaches the final position, and the latching recess and the elastic latching portion abut each other to form a first resisting point, it is defined as the first An insertion position is defined as a second insertion when the insertion member is inserted into the insertion space and exceeds the final position, and the locking recess and the elastic snap portion abut each other to form a second abutment point When the insertion member is inserted into the insertion space and is located between the first insertion position and the second insertion position except the final position, the elastic buckle portion of the shielding housing can be Corresponding to the retaining recess of the insert element and the drive insert element position is moved to the final position.