CN117525997A - Card edge connector - Google Patents

Abstract

The invention discloses a card edge connector, which is used for being in butt joint with an electronic card and comprises a base body, an earring and an unlocking mechanism, wherein the earring is switched between a locking position and an unlocking position relative to the base body, the unlocking mechanism comprises an adjusting piece and an unlocking piece linked with the adjusting piece, the adjusting piece is provided with a supporting part and a connecting part, the supporting part is used for being in butt joint with the electronic card, the unlocking piece comprises a sliding part, an elastic part and an actuating part, the sliding part and the elastic part are arranged on the long side edge of the base body, the sliding part is connected with the connecting part and the actuating part, one end of the elastic part is limited on the base body, the other end of the elastic part is connected with the sliding part, the actuating part is used for actuating the earring, the unlocking mechanism downwards supports the supporting part through the electronic card, the sliding part and the actuating part slide towards one end of the base body far away from the earring, the elastic part is linked to generate elastic deformation to store force, and in the process of obliquely lifting the electronic card, the supporting part is in a way, the elastic part is released, the sliding part and the actuating part slides towards one end of the base body close to the earring, and the actuating part is pushed to the earring to the end of the electronic card.

Description

Card edge connector

[ field of technology ]

The present invention relates to a card edge connector, and more particularly to a card edge connector with an automatic unlocking function.

[ background Art ]

An existing electrical connector is mounted on a circuit board and is used for being in plug-in fit with a docking card, the electrical connector is provided with a body and an earring mounted on the body, the earring can rotate between a locking position and an unlocking position relative to the body, the earring is locked at the locking position to lock the docking card, the docking card is prevented from being separated from the electrical connector, and the earring is unlocked at the unlocking position to release the locking of the docking card, so that a user can take out the docking card from the electrical connector. The ear clip is provided with a pulling part, and the pulling part is used for a user to manually press the ear clip so as to rotate the ear clip from the locking position to the unlocking position. When the ear clip is in the locking position to lock the docking card, the pulling portion is located at a side of the docking card, which requires a space directly above the pulling portion.

However, as the performance of the conventional docking card increases, the size of the docking card increases, and the space directly above the pulling portion is blocked due to the arrangement of peripheral devices, heat dissipation components, etc., so that it is difficult to pull the ear clip to rotate, and further it is difficult to release the fastening of the ear clip to the docking card, and if the docking card is directly pulled out forcibly, the electrical connector or the docking card is easily damaged.

Therefore, it is necessary to provide a card edge connector with an automatic unlocking function to overcome the above-mentioned drawbacks.

[ invention ]

In view of the problems of the prior art, an object of the present invention is to provide a card edge connector with an automatic unlocking function.

In order to achieve the above purpose, the invention adopts the following technical scheme: a card edge connector for interfacing with an electronic card having an interface portion, comprising: the seat body comprises a first end part, a second end part and a slot, wherein the first end part and the second end part extend along a longitudinal direction and are oppositely arranged, the slot extends between the first end part and the second end part in a longitudinal direction, the slot is used for being in butt joint with the butt joint part along an up-down direction, the first end part is provided with a hollow groove, the hollow groove is communicated with the slot along the longitudinal direction, the seat body is oppositely provided with a first side wall and a second side wall along a transverse direction, the slot is positioned between the first side wall and the second side wall, and the longitudinal direction, the up-down direction and the transverse direction are mutually perpendicular; the ear clip is movably connected to the second end part and is switched between a locking position and an unlocking position relative to the base body, the ear clip is used for locking the electronic card in the locking position and preventing the electronic card from being separated from the base body upwards, and the ear clip is used for releasing the locking of the electronic card in the unlocking position; the unlocking mechanism comprises an adjusting piece and an unlocking piece which is linked with the adjusting piece, the adjusting piece is provided with a supporting part and a connecting part, and the supporting part is used for being in supporting connection with the abutting part; the unlocking piece comprises a sliding part, an elastic part and an actuating part, wherein the sliding part is arranged at the outer side of the first side wall opposite to the slot, the sliding part is respectively connected with the connecting part and the actuating part, the elastic part extends in a bending mode along the longitudinal direction, one end of the elastic part is limited at the first side wall, the other end of the elastic part is connected with the sliding part, and the actuating part is used for actuating the earring; in the process of inserting the electronic card into the slot, the abutting part abuts against the abutting part which protrudes into the slot, so that the abutting part at least partially enters the empty slot, and the sliding part and the actuating part are linked to move towards the direction of the first end part towards the second end part, and the elastic part is elastically deformed to store force; in the process of lifting one end of the electronic card away from the earring, the abutting part is away from the abutting part, so that the part of the abutting part entering the empty slot is withdrawn from the empty slot, the elastic part releases elastic force, the sliding part and the actuating part move towards the first end part towards the second end part, and the actuating part pushes the earring to unlock the electronic card.

Further, the elastic portion comprises a bending section and a limiting section, the bending section is stressed to deform, one end, close to the second end, of the bending section is connected with the sliding portion, one end, far away from the second end, of the bending section is connected with the limiting section, and the limiting section is limited on the first side wall.

Further, the outer side surface of the first side wall, which is away from the slot, is concavely provided with a limiting groove, and the limiting section is limited in the limiting groove and is used for limiting the expansion and contraction amount of the elastic part in the longitudinal direction.

Further, the first side wall is provided with a plurality of terminal grooves in a arraying mode along the longitudinal direction, and the limiting groove is communicated with one of the terminal grooves.

Further, a limiting bump is convexly arranged on the outer side surface of the first side wall, which is away from the slot, and the limiting section is clamped to the limiting bump so as to limit the expansion and contraction amount of the elastic part in the longitudinal direction.

Further, a first limiting part and a second limiting part are arranged on the first side wall, and the first limiting part and the second limiting part are arranged in a staggered manner along the up-down direction; the sliding part comprises a main body section and an extension section connected with the main body section, the main body section is connected with the elastic part, the extension section is connected with the actuating part, the lower edge of the main body section is lower than the lower edge of the extension section, the first limiting part is arranged corresponding to the lower edge of the main body section, and the second limiting part is arranged corresponding to the lower edge of the extension section.

Further, the first side wall is provided with at least one first limiting part and at least one second limiting part, and the first limiting part and the second limiting part are arranged in a staggered manner along the up-down direction; the sliding part comprises a longitudinal section and a bridging section integrally connected with the longitudinal section, the elastic part is integrally connected with the bridging section, the longitudinal section extends along the longitudinal direction, the actuating part is connected with one of the bridging section and the longitudinal section, and the first limiting part and the second limiting part are arranged on the upper side and the lower side of the longitudinal section.

Further, the empty groove penetrates through the first end part along the longitudinal direction, and the adjusting piece is rotatably connected to the first end part; the adjusting piece further comprises a pivot, the first end part is provided with a pivot groove, the pivot groove extends along the transverse direction and extends on the first side wall, the pivot groove is communicated with the empty groove, the pivot is arranged in the pivot groove, the supporting part is connected to the pivot and is positioned between the first side wall and the second side wall, and the connecting part is connected to the pivot and is positioned on one side, far away from the slot, of the first side wall in the transverse direction; the pin joint groove is opened upwards, and the adjusting piece is arranged in the pin joint groove from top to bottom; the clamping connector further comprises an outer cover covered on the base body, the connecting part is arranged between the first side wall and the outer cover in the transverse direction, and the outer cover is used for limiting the adjusting piece in the up-down direction and the transverse direction.

Further, the outer cover comprises a top plate, a first side plate and a second side plate, the first side plate and the second side plate are connected to the two opposite sides of the top plate in the transverse direction, the top plate covers the top surface of the base and is provided with an opening corresponding to the slot, the first side plate covers the outer side of the first side wall, the second side plate covers the outer side of the second side wall, the first side plate comprises a middle plate and an end plate positioned on one side, close to the earring, of the middle plate, the end plate is positioned on the other side, close to the second side plate, of the middle plate in the transverse direction, the sliding part is clamped between the middle plate and the end plate, the top plate further comprises a reinforcing plate, the edge, close to the first side plate, of the opening in the transverse direction protrudes inwards, and the reinforcing plate corresponds to the end plate along the length of the longitudinal direction and extends to the arrangement corresponding to the middle plate.

Further, the unlocking mechanism is an integrally formed metal part, and the adjusting part is made of a metal material.

Further, the sliding portion is formed with a receiving opening along the transverse direction, and the elastic portion is disposed corresponding to the receiving opening in the transverse direction.

Further, the elastic part is formed by stamping a metal plate corresponding to the accommodating opening.

Further, the elastic portion includes a bending section and a limiting section connected with the bending section, the bending section is stressed and deformed, the bending section extends in a serpentine manner along the longitudinal direction from the edge of the accommodating opening, the bending section does not exceed the accommodating opening in the transverse direction, and the limiting section is limited on the first side wall.

Further, the sliding portion includes a longitudinal section and a bridge section connected to the longitudinal section, the longitudinal section is connected to the connecting portion, the bridge section connects the longitudinal section and the elastic portion, and the longitudinal section and the elastic portion are disposed opposite to each other in the lateral direction.

Further, the longitudinal section is disposed adjacent to the slot relative to the elastic portion.

Further, the ear clip is pivotally connected to the second end portion about an axis, the ear clip includes a first wing portion and a second wing portion located outside the second end portion in the lateral direction, the first wing portion is provided with a gap groove penetrating along the longitudinal direction and having a downward opening, and the actuating portion is actuated in the gap groove.

Further, the thickness of the first side wing portion in the lateral direction is greater than the thickness of the second side wing portion in the lateral direction.

Further, the ear clip is pivotally connected to the second end portion about an axis, the ear clip includes a first wing portion and a second wing portion located outside the second end portion in the lateral direction, one end of the first wing portion, which is relatively close to the slot, has a receiving surface, the receiving surface extends obliquely from top to bottom from the first end portion to the second end portion, and the actuating portion is configured to abut against the receiving surface.

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

the electronic card is downwards inserted into the slot, the abutting part abuts against the abutting part which protrudes into the slot, so that the abutting part at least partially enters the empty slot, the sliding part and the actuating part are linked to move towards the direction of the first end part, and the elastic part is elastically deformed to store force; in the process of lifting one end of the electronic card away from the earring, the abutting part is away from the abutting part, so that the part of the abutting part entering the empty slot is withdrawn from the empty slot, the elastic part releases elastic force, the sliding part and the actuating part move towards the first end part towards the second end part, and the actuating part pushes the earring to unlock the electronic card, so that the function of automatically unlocking the card edge connector is realized. Meanwhile, the sliding part and the elastic part extend along the longitudinal direction and are arranged at the outer side of the first side wall opposite to the slot, and compared with the arrangement of the elastic part at the end part of the seat body, the arrangement is that on one hand, the elastic part has enough extending space to increase the elastic effect, so that the elastic part has larger force to push the earring when the elastic force is released; on the other hand, the end part of the seat body can be given way, so that the position of the end part can be additionally provided with a power terminal or other elements.

[ description of the drawings ]

Fig. 1 is a perspective view of a card edge connector according to a first embodiment of the present invention after an electronic card is inserted;

FIG. 2 is an exploded perspective view of the card edge connector of FIG. 1;

FIG. 3 is a perspective view of the card edge connector of FIG. 1;

FIG. 4 is a perspective view of the release member of FIG. 2 from another perspective;

FIG. 5 is a perspective view of the ear clip of FIG. 2 from another perspective;

FIG. 6 is a top view of the card edge connector of FIG. 3;

FIG. 7 is a cross-sectional view of the card edge connector of FIG. 6 taken along line A-A prior to insertion of an electronic card;

FIG. 8 is a cross-sectional view of the card edge connector of FIG. 6 taken along line B-B prior to insertion of an electronic card;

FIG. 9 is a schematic view of the card edge connector of FIG. 7 after the electronic card is fully inserted;

FIG. 10 is a schematic view of the card edge connector of FIG. 8 after the electronic card is fully inserted;

FIG. 11 is a schematic view of the electronic card of FIG. 9 when the end of the electronic card away from the earring is pulled out obliquely upward and the earring is unlocked;

FIG. 12 is a schematic view of the electronic card of FIG. 10 when the end of the electronic card away from the earring is pulled out obliquely upward and the earring is unlocked; fig. 13 is a perspective view of a card edge connector according to a second embodiment of the invention after an electronic card is inserted;

FIG. 14 is an exploded perspective view of the card edge connector of FIG. 13;

FIG. 15 is a perspective view of the card edge connector of FIG. 13;

FIG. 16 is a perspective view of the release member of FIG. 14 from another perspective;

FIG. 17 is a perspective view of the ear tag of FIG. 14 from another perspective;

FIG. 18 is a top view of the card edge connector of FIG. 15;

FIG. 19 is a cross-sectional view of the card edge connector of FIG. 18 taken along line C-C prior to insertion of an electronic card;

FIG. 20 is a cross-sectional view of the card edge connector of FIG. 18 taken along line D-D before insertion of an electronic card;

FIG. 21 is a schematic view of the card edge connector of FIG. 19 after the electronic card is fully inserted;

FIG. 22 is a schematic view of the card edge connector of FIG. 20 after the electronic card is fully inserted;

FIG. 23 is a schematic view of the electronic card of FIG. 21 with one end of the electronic card away from the ear clip pulled out obliquely upward and the ear clip unlocked; fig. 24 is a schematic view of the electronic card of fig. 22 when the end far from the ear clip is pulled out obliquely upward and the ear clip is unlocked. Reference numerals in the specific embodiments illustrate:

card edge connector 100	Seat body 1	Socket 11	First end 12
				Empty groove 121	Pin joint groove 122	Second end 13	Pivot arm 131
Storage groove 132	First side wall 14	First restriction portion 141	Second restriction portion 142
				Limiting groove 143	Limit bump 144	Second side wall 15	Terminal groove 16
First stopper 17	Second stopper 18	Conductive terminal 2	Contact portion 21
				Outer cover 3	Top plate 31	Opening 311	Reinforcing plate 312
First side plate 32	Intermediate plate 321	End plate 322	Second side plate 33
				Ear clip 4	Axis Q	Body portion 41	Clamping slot 411
Fastening portion 42	Card withdrawal part 43	Pivot portion 44	First side wing 45
				Gap groove 451	Bearing surface 452	Second wing portion 46	Unlocking mechanism 5
Adjusting member 51	Pivot 511	Holding portion 512	Connection portion 513
				Unlocking piece 52	Sliding portion 521	Draw hook 5210	Main body section 5211
Extension 5212	Accommodating opening 5213	Length 5214 of	Bridge segment 5215
				Elastic portion 522	Bending section 5221	Spacing segment 5222	An actuation part 523
Electronic card 200	Butt joint 201	Detent 202

[ detailed description ] of the invention

For a better understanding of the invention with objects, structures, features, and effects, the invention will be described further with reference to the drawings and to the detailed description.

For convenience of description, a longitudinal direction X, a transverse direction Y and an up-down direction Z are defined, and the longitudinal direction X, the transverse direction Y and the up-down direction Z are perpendicular to each other.

As shown in fig. 1 to 12, which are a first embodiment of the card edge connector 100 according to the present invention, as shown in fig. 13 to 24, which are a second embodiment of the card edge connector 100 according to the present invention, in each embodiment, the card edge connector 100 is mounted on a circuit board along the up-down direction Z and is configured to be plugged with an electronic card 200, and the electronic card 200 is plugged with the card edge connector 100 along the up-down direction Z.

As shown in fig. 7 and 19, in each embodiment, the electronic card 200 has a docking portion 201 and a locking portion 202, the docking portion 201 and the locking portion 202 are disposed side by side and at intervals in the longitudinal direction X, the docking portion 201 extends longitudinally in the longitudinal direction X, the bottom edges of the docking portion 201 are lower than the bottom edges of the locking portion 202, and a plurality of gold fingers (not shown) are disposed on opposite sides of the docking portion 201 in the transverse direction Y.

As shown in fig. 2 and 14, in each embodiment, the card edge connector 100 includes a housing 1, a plurality of conductive terminals 2 disposed on the housing 1, a housing 3 covering the housing 1, and a latch 4 and an unlocking mechanism 5 connected to the housing 1.

As shown in fig. 2 and 14, in each embodiment, the base 1 is made of an insulating material, and the base 1 includes a slot 11, a first end 12, a second end 13, a first sidewall 14, and a second sidewall 15. In other embodiments, the base 1 may be made of a conductive material and an insulating material.

As shown in fig. 10 and 22, in each embodiment, the slot 11 extends along the longitudinal direction X and is formed by recessing downwards from the upper surface of the base 1, the slot 11 is configured to receive the docking portion 201 along the up-down direction Z, and the base 1 further includes a fool-proof portion (not shown) disposed on the slot 11, and divides the slot 11 into two slots with different lengths, so as to prevent the electronic card 200 from being misplaced.

As shown in fig. 2 and 8 and fig. 14 and 20, in each embodiment, the first end portion 12 and the second end portion 13 are disposed on opposite sides of the slot 11 in the longitudinal direction X, the first end portion 12 is provided with a hollow groove 121, the hollow groove 121 communicates with the slot 11 in the longitudinal direction X and penetrates the first end portion 12 in the longitudinal direction X, the top of the first end portion 12 extends in the transverse direction Y and penetrates the first side wall 14 to form a pivot groove 122, and the pivot groove 122 communicates with the hollow groove 121.

As shown in fig. 2 and 8 and fig. 14 and 20, in each embodiment, the second end portion 13 includes two pivoting arms 131 and a receiving groove 132, the two pivoting arms 131 are opposite and spaced apart in the transverse direction Y, the receiving groove 132 is formed between the two pivoting arms 131, the receiving groove 132 is spaced apart from the slot 11 in the longitudinal direction X and is not in communication with the slot 11, and the receiving groove 132 is configured to receive the locking portion 202 when the electronic card 200 is inserted.

As shown in fig. 2 and 14, in each embodiment, the first side wall 14 and the second side wall 15 are disposed on opposite sides of the slot 11 in the transverse direction Y, and the first side wall 14 and the second side wall 15 each have a plurality of terminal grooves 16 aligned along the longitudinal direction X, each of the terminal grooves 16 communicating with the slot 11 in the transverse direction Y.

As shown in fig. 7 and 9 and fig. 19 and 21, in each embodiment, the first side wall 14 is provided with at least one first limiting portion 141 and at least one second limiting portion 142, the first limiting portion 141 and the second limiting portion 142 are staggered along the up-down direction Z, and the number of the first limiting portion 141 and the second limiting portion may be set according to the requirement.

As shown in fig. 6 and 7 and fig. 18 and 20, in each embodiment, a plurality of the conductive terminals 2 are disposed in a plurality of the terminal slots 16 in a one-to-one correspondence, and the conductive terminals 2 have a contact portion 21 exposed from the slot 11 for being connected with the abutting portion 201 inserted into the slot 11.

As shown in fig. 2 and 3 and fig. 14 and 15, in each embodiment, the housing 3 is preferably made of a metal material for shielding external signal interference, and is typically formed by stamping a metal plate, and of course, in other embodiments, the housing 3 may be made of a plastic material, where the hardness of the metal plate is typically greater than that of plastic, and the electromagnetic interference shielding capability is greater than that of plastic. The outer cover 3 is mounted from top to bottom and is wrapped outside the base 1, the outer cover 3 is further used for protecting the unlocking mechanism 5, and the outer cover 3 includes a top plate 31, and a first side plate 32 and a second side plate 33 connected to two sides of the top plate 31 in the transverse direction Y in a bending manner.

As shown in fig. 2 and 3 and fig. 14 and 15, in each embodiment, the top plate 31 covers the top surface of the base 1, and an opening 311 is provided corresponding to the slot 11, the first side plate 32 covers the outer side of the first side wall 14, the second side plate 33 covers the outer side of the second side wall 15, and the unlocking mechanism 5 is partially disposed between the first side plate 32 and the first side wall 14.

As shown in fig. 5, 10 and 12 and fig. 17, 22 and 24, in each embodiment, the ear clip 4 is movably connected to the second end portion 13, specifically, the ear clip 4 is pivotally connected to the second end portion 13 about an axis Q, and the axis Q extends along the transverse direction Y. The ear clip 4 is switched between a locking position and an unlocking position relative to the base 1, the ear clip 4 is locked on the electronic card 200 at the locking position, so as to prevent the electronic card 200 from being separated from the base 1, and the ear clip 4 is unlocked on the unlocking position, so that the electronic card 200 can be pulled out from the slot 11. In other embodiments, the ear clip 4 may also slide along the longitudinal direction X to switch between the locking position and the unlocking position.

As shown in fig. 5, 14 and 17, in each embodiment, the ear clip 4 includes a main body 41, a holding portion 42, a clip ejecting portion 43, two pivoting portions 44, a first wing portion 45 and a second wing portion 46.

As shown in fig. 5 and 10 and fig. 14 and 22, in each embodiment, the main body 41 is provided with a locking slot 411, when the ear clip 4 is at the locking position, the locking slot 411 penetrates the main body 41 in the longitudinal direction X, the locking slot 411 is located between the locking portion 42 and the releasing portion 43 in the up-down direction Z, and the locking portion 202 is accommodated in the locking slot 411.

As shown in fig. 10 and 22, in each embodiment, the locking portion 42 is located at an upper portion of the locking slot 411, so as to lock the locking portion 202.

As shown in fig. 10 and 12 and fig. 22 and 24, in each embodiment, the card withdrawing portion 43 is accommodated in the accommodating groove 132, when the ear clip 4 is at the locking position, the card withdrawing portion 43 protrudes toward the slot 11 along the longitudinal direction X relative to the main body portion 41, the card withdrawing portion 43 abuts against the bottom surface of the locking portion 202, so as to timely push the electronic card 200 when the card is withdrawn, and when the ear clip 4 is at the unlocking position and the electronic card 200 is inserted into the slot 11, the locking portion 202 starts to push the card withdrawing portion 43 downward, and continues to push the card withdrawing portion 43 downward, so that the ear clip 4 rotates relative to the base 1, and is switched from the unlocking position to the locking position.

As shown in fig. 2 and 5 and fig. 14 and 17, in each embodiment, two pivoting portions 44 are disposed on opposite sides of the card withdrawing portion 43 in the transverse direction Y, and the two pivoting portions 44 are correspondingly received in pivot holes (not shown) on two pivoting arms 131 one by one to cooperate with each other, so that the ear clip 4 is mounted on the second end 13, and the ear clip 4 can rotate about the axis Q relative to the base 1.

As shown in fig. 5 and 6 and fig. 17 and 18, in each embodiment, the first side wing 45 and the second side wing 46 are located on opposite sides of the card withdrawing portion 43 and outside the two pivoting arms 131 in the transverse direction Y, and the inner sides of the first side wing 45 and the second side wing 46 are in contact with or very close to the outer sides of the two pivoting arms 131.

As shown in fig. 3 and 7 and fig. 15 and 19, in each embodiment, the unlocking mechanism 5 is disposed on one side of the first sidewall 14, the unlocking mechanism 5 is used to switch the ear clip 4 between the unlocking position and the locking position, and the unlocking mechanism 5 includes an adjusting member 51 and an unlocking member 52 that is linked with the adjusting member 51. Of course, in other embodiments, two unlocking mechanisms 5 may be provided and disposed corresponding to the first side wall 14 and the second side wall 15, respectively.

As shown in fig. 2 and 3 and fig. 14 and 15, in each embodiment, the adjusting member 51 is made of a metal material with high strength, and the adjusting member 51 is movably connected to the second end 13, specifically, the adjusting member 51 is rotatably connected to the second end 13, and of course, in other embodiments, the adjusting member 51 may be slidably connected to the second end 13 along the longitudinal direction X.

As shown in fig. 2, 9 and 10 and fig. 14, 21 and 22, in each embodiment, the adjusting member 51 is configured to abut against the electronic card 200 to link the unlocking member 52 to slide in the longitudinal direction X, the adjusting member 51 includes a pivot 511, an abutting portion 512 and a connecting portion 513, the pivot 511 extends along the transverse direction Y, the abutting portion 512 and the connecting portion 513 are connected to the pivot 511 at intervals in the transverse direction Y, the pivot 511 is mounted in the pivot slot 122 from top to bottom, the abutting portion 512 is configured to abut against the electronic card 200, the connecting portion 513 is configured to be located between the first side wall 14 and the first side wall 32, and the connecting portion 513 is connected to the unlocking member 52.

As shown in fig. 2 and 14, in each embodiment, the unlocking member 52 is made of an integrally formed metal material, and the unlocking member 52 includes a sliding portion 521, an elastic portion 522 and an actuating portion 523. In other embodiments, the release member 52 may be formed by several separate components that are joined together by fastening or welding, etc.

As shown in fig. 6 and 7 and fig. 18 and 19, in each embodiment, the sliding portion 521 is disposed outside the first side wall 14 opposite to the slot 11, the sliding portion 521 extends along the longitudinal direction X, the sliding portion 521 is integrally connected with the connecting portion 513 and the actuating portion 523, the sliding portion 521 is slidable relative to the base 1 along the longitudinal direction X, the sliding portion 521 is provided with a hook 5210, the hook 5210 is located near the first end 12 along the longitudinal direction X, and the hook 5210 hooks on a side of the connecting portion 513 away from the second end 13 along the longitudinal direction X.

As shown in fig. 6 and 7 and fig. 18 and 19, in each embodiment, the elastic portion 522 is disposed along the outer side of the first sidewall 14 opposite to the slot 11, the elastic portion 522 is bent and extended along the longitudinal direction X, one end of the elastic portion 522 is fixed to the first sidewall 14, the other end is connected to the sliding portion 521, specifically, the elastic portion 522 is compressed by a force to be elastically deformed, and the elastic portion 522 is elastically deformed by a force to be removed from compressing the elastic portion 522, and in other embodiments, the elastic portion 522 is elastically deformed by a tensile force, and is elastically deformed by a force to be removed from stretching the elastic portion 522.

As shown in fig. 7 and 9 and fig. 19 and 21, in each embodiment, the actuating portion 523 is configured to actuate the ear clip 4 to switch the ear clip 4 from the locking position to the unlocking position, so as to achieve automatic unlocking of the card edge connector 100. Of course, the actuating portion 523 may also be designed to be sufficient at the same time, so that the ear clip 4 is switched from the unlocking position to the locking position by the actuation of the actuating portion 523.

As shown in fig. 7 and 8 and fig. 19 and 20, in each embodiment, the actuating portion 523 always abuts against the ear clip 4 before the electronic card 200 is not inserted, so that the ear clip 4 is in the unlocked position, the abutting portion 512 protrudes into the slot 11, and the elastic portion 522 is kept in a relaxed state, however, in other embodiments, the elastic portion 522 may be slightly compressed or slightly stretched instead of being kept in a relaxed state.

As shown in fig. 5, 9 and 10 and fig. 17, 21 and 22, in each embodiment, during the insertion of the electronic card 200 into the slot 11, the abutting portion 201 pushes the abutting portion 512 protruding into the slot 11 downward, the adjusting member 51 rotates clockwise, so that the abutting portion 512 swings from the second end 13 toward the first end 12 and gradually enters the empty slot 121, gradually releasing the abutting portion 201, the abutting portion 512 and the connecting portion 513 swing to drive the connecting portion 513 to pull the pulling hook 5210, so that the sliding portion 521 and the actuating portion 523 slide toward the first end 12 toward the second end 13, and simultaneously the elastic portion 522 is compressed to be elastically deformed by force, thereby accumulating force, and simultaneously the blocking portion 202 pushes the locking portion 43 downward, so that the ear 4 rotates around the axis Q relative to the base 1, rotates from the locking portion Q to the unlocking position, and the ear 4 is kept in the final direction toward the locking position, and the locking portion is kept in the unlocking position by the rotation of the locking portion 4. Of course, in other embodiments, the actuating portion 523 may not be disengaged from the abutment of the ear clip 4 during the rotation of the ear clip 4 from the unlocking position to the locking position, but the force applied by the locking portion 202 to the ear clip 4 is greater than the force applied by the actuating portion 523 to the ear clip 4.

As shown in fig. 11 and 22 and fig. 23 and 24, in the process of lifting the electronic card 200 away from the end of the ear clip 4, that is, in the process of accommodating the electronic card 200 in an inclined upward direction relative to the end of the second end 13 near the first end 12, the abutting portion 201 moves obliquely upward at the end near the first terminal to gradually give way to the holding portion 512, under the condition that the elastic portion 522 elastically releases the elastic force, the adjusting member 51 rotates counterclockwise, the elastic portion 522 simultaneously drives the sliding portion 521 and the actuating portion 523 to move toward the direction of the second end 13 toward the first end 12, so that the actuating portion 523 pushes the ear clip 4 to switch from the locking state to the unlocking state, and the locking portion 202 can disengage from the locking buckle of the ear clip 4 above the ear clip 4, so as to realize the automatic unlocking function of the card edge connector 100, and the electronic card 200 can be completely pulled out from the slot 11.

Of course, in other embodiments, two unlocking mechanisms 5 may be disposed on opposite sides of the base 1 in the transverse direction Y, so that the second side wall 15, the second side plate 33, and the second side wing 46 are configured to be the same as the first side wall 14, the first side plate 32, and the first side wing 45 that are engaged with the unlocking mechanisms 5.

As shown in fig. 2 and 7, in the first embodiment, the first side wall 14 is further provided with a limiting groove 143, the limiting groove 143 extends downward from the top surface of the first side wall 14, the limiting groove 143 penetrates the first side wall 14 in the lateral direction Y toward a side away from the slot 11, the limiting groove 143 is communicated with one of the terminal grooves 16, the first limiting portion 141 and the second limiting portion 142 are respectively provided with one, and the first limiting portion 141 and the second limiting portion 142 are disposed at intervals along the longitudinal direction X and are disposed substantially near both ends of the first side wall 14. In other embodiments, the limiting groove 143 may not be in communication with the terminal groove 16, but may be offset from the terminal groove 16.

As shown in fig. 2, 3 and 6, in the first embodiment, the base 1 further includes two first stoppers 17 and two second stoppers 18, specifically, two first stoppers 17 are disposed on the outer side of the first sidewall 14 facing away from the slot 11 in the transverse direction Y, two first stoppers 17 are connected to both ends of the first sidewall 14 in the longitudinal direction X, a space is provided between the first stoppers 17 and the first sidewall 14, two second stoppers 18 are disposed on the outer side of the second sidewall 15 facing away from the slot 11 in the transverse direction Y, two second stoppers 18 are connected to both ends of the second sidewall 15 in the longitudinal direction X, and a space is provided between the second stoppers 18 and the second sidewall 15.

As shown in fig. 2 and 3, in the first embodiment, the top plate 31 further includes a reinforcing plate 312, and the reinforcing plate 312 protrudes inward from an edge of the opening 311 on a side close to the first side plate 32 in the lateral direction Y.

As shown in fig. 2, 3 and 6, in the first embodiment, the first side plate 32 is limited between the first side wall 14 and the first stop 17, the second side plate 33 is limited between the second side wall 15 and the second stop 18, the first side plate 32 includes a middle plate 321 and an end plate 322 located on a side of the middle plate 321 near the second end 13, the middle plate 321 and the end plate 322 are limited between the first side wall 14 and the first stop 17, the end plate 322 is closer to the second side plate 33 than the middle plate 321 in the transverse direction Y, the sliding portion 521 is sandwiched between the middle plate 321 and the end plate 322, the length of the reinforcing plate 312 along the longitudinal direction X corresponds to the end plate 322 and extends to a position corresponding to the middle plate 321, and the reinforcing plate 312 is used for increasing the connection strength of the top plate 31 at a position corresponding to the middle plate 321 and the end plate 322.

As shown in fig. 5 and 11, in the first embodiment, the first side wing 45 is provided with a clearance groove 451 penetrating in the longitudinal direction X and opening downward, the actuation portion 523 is actuated to the clearance groove 451, specifically, the thickness of the first side wing 45 in the transverse direction Y is greater than the second side wing 46, and the clearance groove 451 is formed in the first side wing 45.

As shown in fig. 2, 4 and 9, in the first embodiment, the unlocking member 52 is assembled to the base 1 from top to bottom, the sliding portion 521 includes a main portion 5211 and an extension portion 5212 connected to the main portion 5211, the main portion 5211 is connected to the elastic portion 522, the extension portion 5212 is connected to the actuating portion 523, the width of the main portion 41 in the up-down direction Z is greater than the width of the extension portion 5212 in the up-down direction Z, the lower edge of the main portion 5211 is lower than the lower edge of the extension portion 5212, the first limiting portion is disposed corresponding to the lower edge of the main portion 5211, the second limiting portion is disposed corresponding to the lower edge of the extension portion 5212, the upper edge of the sliding portion 521 extends to the top surface of the base 1, and the first limiting portion 141, the second limiting portion 142 and the top plate 31 of the cover 3 cooperate to limit the sliding portion 521 in the up-down direction Z.

As shown in fig. 4 and 9, in the first embodiment, the sliding portion 521 is formed with a receiving opening 5213 penetrating in the transverse direction Y, specifically, since the width of the main body section 5211 in the up-down direction Z is larger than the width of the extension section 5212 in the up-down direction Z, the receiving opening 5213 is opened in the main body section 5211, however, in other embodiments, the receiving opening 5213 may be formed in the main body section 5211 and the extension section 5212, or only in the extension section 5212.

As shown in fig. 4 and 7, in the first embodiment, the elastic portion 522 is disposed corresponding to the accommodating opening 5213 in the transverse direction Y, specifically, the elastic portion 522 is formed by stamping a metal plate corresponding to the accommodating opening 5213, the elastic portion 522 includes a curved portion 5221 and a limiting portion 5222 connected to the curved portion 5221, the curved portion 5221 is formed by bending along the longitudinal direction X, specifically, the curved portion 5221 extends in a serpentine shape along the longitudinal direction X from an edge of the opening 311 and does not extend beyond the accommodating opening 5213 in the transverse direction Y, however, the curved portion 5221 may also extend in a disk shape along the longitudinal direction X, the disk-shaped curved portion 5221 may be integrally connected to the sliding portion 521, or may be separately configured with the sliding portion 521, and may be fixed to each other by welding or the like, but the curved portion 5221 formed by the serpentine extension may reduce the volume along the transverse direction Y, which is more advantageous for the overall compact structure of the card connector 100.

As shown in fig. 7, in the first embodiment, the limiting section 5222 is located in the limiting groove 143 of the first sidewall 14, so that the limiting section 5222 limits the expansion and contraction amount of the elastic portion 522 in the longitudinal direction X, and the limiting section 5222 may be fastened in the limiting groove 143 or may have a small gap with the limiting groove 143 in the longitudinal direction X.

As shown in fig. 7, in the first embodiment, the actuating portion 523 always abuts the groove wall of the clearance groove 451 before the electronic card 200 is not inserted.

As shown in fig. 14, in the second embodiment, two first limiting portions 141 are spaced apart along the longitudinal direction X, and disposed near the first end portion 12 and the second end portion 13, one second limiting portion 142 is disposed above the first limiting portion 141, a limiting protrusion 144 is disposed on an outer side surface of the first side wall 14 facing away from the slot 11, and the limiting protrusion 144 is disposed above the first limiting portion 141 and spaced apart from the second limiting portion 142 in the longitudinal direction X.

As shown in fig. 14 and 19, in the second embodiment, the limiting segment 5222 is engaged with the limiting projection 144 of the first sidewall 14, so that the limiting projection 144 is configured to limit the expansion and contraction amount of the elastic portion 522 in the longitudinal direction X. Specifically, the limiting projection 144 is disposed to protrude further outward in the transverse direction Y than the first limiting portion 141 and the second limiting portion 142, and the first side plate 32 cooperates with the limiting projection 144 to limit the elastic portion 522 in the transverse direction Y.

As shown in fig. 14 and 18, in the second embodiment, the seat 1 includes the second stopper 18, and the first stopper 17 is not provided.

As shown in fig. 17 and 19, in the second embodiment, an end of the first side wing 45, which is relatively close to the slot 11, has a receiving surface 452, the receiving surface 452 extends obliquely from top to bottom from the first end 12 to the second end 13, and the actuating portion 523 is configured to abut against the receiving surface 452.

As shown in fig. 16 and 19, in the second embodiment, the unlocking member 52 is assembled to the base 1 along the transverse direction Y, the sliding portion 521 includes a longitudinal portion 5214 and a bridging portion 5215 integrally connected to the longitudinal portion 5214, the longitudinal portion 5214 is integrally connected to the connecting portion 513, the bridging portion 5215 integrally connects the longitudinal portion 5214 and the elastic portion 522, the actuating portion 523 is connected to one of the bridging portion 5215 and the longitudinal portion 5214, specifically, the actuating portion 523 is connected to the bridging portion 5215, however, in other embodiments, the components on the sliding portion 521 may be separately disposed from each other, and connected together by welding or the like, and the actuating portion 523 may be connected to the longitudinal portion 5214.

As shown in fig. 14 and 23, in the second embodiment, two first limiting portions 141 are spaced apart along the longitudinal direction X, the first limiting portions 141 are disposed corresponding to the lower edge of the longitudinal section 5214, one second limiting portion 142 is specifically disposed corresponding to the upper edge of the longitudinal section 5214, and the first limiting portions 141 and the second limiting portions 142 are configured to limit the longitudinal section 5214 in the vertical direction Z.

As shown in fig. 16 and 19, in the second embodiment, the elastic portion 522 extends along the longitudinal direction X, the elastic portion 522 is disposed opposite the longitudinal section 5214 in the transverse direction Y, and specifically, the longitudinal section 5214 is disposed close to the slot 11 with respect to the elastic portion 522.

As shown in fig. 19 and 23, in the second embodiment, the actuating portion 523 acts on the receiving surface 452 of the ear clip 4 to switch the ear clip 4 from the locking position to the unlocking position, so as to automatically unlock the card edge connector 100.

As shown in fig. 19 and 20, before the electronic card 200 is not inserted, the actuating portion 523 always abuts against the receiving surface 452, so that the earring 4 is in the unlocked position, the abutting portion 512 protrudes into the slot 11, and the elastic portion 522 is kept in a relaxed state, however, in other embodiments, the elastic portion 522 may be slightly compressed, or may be slightly stretched, instead of being kept in a relaxed state.

The card edge connector has the following beneficial effects:

1) According to the card edge connector 100 of the invention, the unlocking mechanism 5 is arranged to realize automatic unlocking of the electronic card 200 in the process of obliquely pulling out, the electronic card 200 is downwards inserted into the slot 11, the abutting part 201 abuts against the abutting part 512 which is protruded into the slot 11, so that the abutting part 512 at least partially enters the empty slot 121, and the sliding part 521 and the actuating part 523 are linked to move towards the direction of the first end 12 towards the second end 13, and the elastic part 522 is elastically deformed to store force; in the process of lifting one end of the electronic card 200 away from the ear clip 4, the abutting portion 201 is configured to let the abutting portion 512 be away from the hollow portion 121, so that the portion of the abutting portion 512 entering the hollow portion 121 is withdrawn from the hollow portion 121, the elastic portion 522 releases the elastic force, and the sliding portion 521 and the actuating portion 523 move toward the first end portion 12 toward the second end portion 13, and the actuating portion 523 pushes the ear clip 4 to unlock the electronic card 200, so as to realize the function of automatically unlocking the card edge connector 100. The user does not need to manually press the ear clip 4, and can switch the ear clip 4 between the unlocking position and the locking position only by operating the insertion and oblique extraction of the electronic card 200.

2) The sliding portion 521 and the elastic portion 522 extend along the longitudinal direction X and are disposed outside the first side wall 14 opposite to the slot 11, so that, with respect to the positioning of the elastic portion 522 at the end of the base 1, the elastic portion 522 has enough extending space to increase the elastic effect, so that the elastic force is released to push the ear clip 4 with a greater force; on the other hand, the end of the base 1 may be given a position to be offset, so that a position for installing a power terminal or other elements may be additionally provided at the end.

3) The adjusting member 51 is mounted in the pivoting slot 122 from top to bottom, the top plate 31 covers the adjusting member 51, the connecting portion 513 is located between the first side wall 14 and the first side plate 32, and the housing 3 can limit the adjusting member 51 in the up-down direction Z and the lateral direction Y.

4) The curved section 5221 extends in a serpentine manner along the longitudinal direction X from the edge of the opening 311, and is not disposed beyond the accommodating opening 5213 in the transverse direction Y, so that the volume of the curved section 5221 in the transverse direction Y can be reduced as compared with the curved section 5221 extending in a disk manner along the longitudinal direction X, which is more beneficial to the compactness of the overall structure of the card edge connector 100 and the molding of the curved section 5221.

5) The adjusting member 51 and the unlocking member 52 are both made of metal, the metal has high rigidity and is not easy to damage, and the elastic portion 522 is formed by elastic deformation and can store high elastic force.

6) The reinforcing plate 312 protrudes inward from the edge of the opening 311 near the first side plate 32 in the transverse direction Y, the length of the reinforcing plate 312 along the longitudinal direction X corresponds to the end plate 322 and extends to the position corresponding to the middle plate 321, and the reinforcing plate 312 is used for increasing the connection strength of the top plate 31 corresponding to the end plate 322 and the position between the middle plate 321 and the end plate 322, so as to avoid the fracture of the top plate 31 at the position corresponding to the position between the two.

7) The elastic portion 522 is disposed opposite to the longitudinal section 5214 in the transverse direction Y, which is advantageous for increasing the disposition space of the elastic portion 522 in the longitudinal direction X, so that the elastic portion 522 is disposed longer in the longitudinal direction X, thereby increasing the elastic potential energy of the elastic portion 522.

8) The longitudinal section 5214 is disposed adjacent to the slot 11 relative to the elastic portion 522 such that the longitudinal section 5214 slides in the longitudinal direction X relative to the first and second limiting portions 141 and 142.

The above detailed description is merely illustrative of the preferred embodiments of the invention and is not intended to limit the scope of the invention, so that all equivalent technical changes that can be made by the present specification and illustrations are included in the scope of the invention.

Claims (18)

1. A card edge connector for interfacing with an electronic card having an interface portion, comprising:

the seat body comprises a first end part, a second end part and a slot, wherein the first end part and the second end part extend along a longitudinal direction and are oppositely arranged, the slot extends between the first end part and the second end part in a longitudinal direction, the slot is used for being in butt joint with the butt joint part along an up-down direction, the first end part is provided with a hollow groove, the hollow groove is communicated with the slot along the longitudinal direction, the seat body is oppositely provided with a first side wall and a second side wall along a transverse direction, the slot is positioned between the first side wall and the second side wall, and the longitudinal direction, the up-down direction and the transverse direction are mutually perpendicular;

the ear clip is movably connected to the second end part and is switched between a locking position and an unlocking position relative to the base body, the ear clip is used for locking the electronic card in the locking position and preventing the electronic card from being separated from the base body upwards, and the ear clip is used for releasing the locking of the electronic card in the unlocking position;

The unlocking mechanism comprises an adjusting piece and an unlocking piece which is linked with the adjusting piece, the adjusting piece is provided with a supporting part and a connecting part, and the supporting part is used for being in supporting connection with the abutting part; the unlocking piece comprises a sliding part, an elastic part and an actuating part, wherein the sliding part is arranged at the outer side of the first side wall opposite to the slot, the sliding part is respectively connected with the connecting part and the actuating part, the elastic part extends in a bending mode along the longitudinal direction, one end of the elastic part is limited at the first side wall, the other end of the elastic part is connected with the sliding part, and the actuating part is used for actuating the earring;

in the process of inserting the electronic card into the slot, the abutting part abuts against the abutting part which protrudes into the slot, so that the abutting part at least partially enters the empty slot, and the sliding part and the actuating part are linked to move towards the direction of the first end part towards the second end part, and the elastic part is elastically deformed to store force;

in the process of lifting one end of the electronic card away from the earring, the abutting part is away from the abutting part, so that the part of the abutting part entering the empty slot is withdrawn from the empty slot, the elastic part releases elastic force, the sliding part and the actuating part move towards the first end part towards the second end part, and the actuating part pushes the earring to unlock the electronic card.

2. The card edge connector of claim 1, wherein: the elastic part comprises a bending section and a limiting section, the bending section is stressed to deform, one end of the bending section, which is close to the second end, is connected with the sliding part, one end of the bending section, which is far away from the second end, is connected with the limiting section, and the limiting section is limited on the first side wall.

3. The card edge connector of claim 2, wherein: the first side wall is concavely arranged on the outer side surface of the slot to form a limit groove, and the limit section is limited in the limit groove and used for limiting the expansion and contraction amount of the elastic part in the longitudinal direction.

4. The card edge connector of claim 3, wherein: the first side wall is provided with a plurality of terminal grooves in a arrayed mode along the longitudinal direction, and the limiting groove is communicated with one terminal groove.

5. The card edge connector of claim 2, wherein: the outer side surface of the first side wall, which is away from the slot, is convexly provided with a limiting projection, and the limiting section is clamped with the limiting projection so as to limit the expansion and contraction amount of the elastic part in the longitudinal direction.

6. The card edge connector of claim 1, wherein: the first side wall is provided with a first limiting part and a second limiting part, and the first limiting part and the second limiting part are arranged in a staggered manner along the up-down direction; the sliding part comprises a main body section and an extension section connected with the main body section, the main body section is connected with the elastic part, the extension section is connected with the actuating part, the lower edge of the main body section is lower than the lower edge of the extension section, the first limiting part is arranged corresponding to the lower edge of the main body section, and the second limiting part is arranged corresponding to the lower edge of the extension section.

7. The card edge connector of claim 1, wherein: the first side wall is provided with at least one first limiting part and at least one second limiting part, and the first limiting part and the second limiting part are arranged in a staggered manner along the up-down direction; the sliding part comprises a longitudinal section and a bridging section integrally connected with the longitudinal section, the elastic part is integrally connected with the bridging section, the longitudinal section extends along the longitudinal direction, the actuating part is connected with one of the bridging section and the longitudinal section, and the first limiting part and the second limiting part are arranged on the upper side and the lower side of the longitudinal section.

8. The card edge connector of claim 1, wherein: the empty groove penetrates through the first end part along the longitudinal direction, and the adjusting piece is rotatably connected to the first end part; the adjusting piece further comprises a pivot, the first end part is provided with a pivot groove, the pivot groove extends along the transverse direction and extends on the first side wall, the pivot groove is communicated with the empty groove, the pivot is arranged in the pivot groove, the supporting part is connected to the pivot and is positioned between the first side wall and the second side wall, and the connecting part is connected to the pivot and is positioned on one side, far away from the slot, of the first side wall in the transverse direction; the pin joint groove is opened upwards, and the adjusting piece is arranged in the pin joint groove from top to bottom; the clamping connector further comprises an outer cover covered on the base body, the connecting part is arranged between the first side wall and the outer cover in the transverse direction, and the outer cover is used for limiting the adjusting piece in the up-down direction and the transverse direction.

9. The card edge connector of claim 1, wherein: the outer cover comprises a top plate, a first side plate and a second side plate, wherein the first side plate and the second side plate are connected to the two opposite sides of the top plate in the transverse direction, the top plate covers the top surface of the base and is provided with an opening corresponding to the slot, the first side plate covers the outer side of the first side wall, the second side plate covers the outer side of the second side wall, the first side plate comprises a middle plate and an end plate positioned on the middle plate and close to one side of the earring, the end plate is arranged in the transverse direction and is closer to the second side plate than the middle plate, the sliding part is clamped between the middle plate and the end plate, the top plate further comprises a reinforcing plate, the reinforcing plate protrudes inwards from the edge of the opening, which is close to one side of the first side plate, in the transverse direction, and the reinforcing plate extends to the arrangement corresponding to the middle plate along the length of the longitudinal direction.

10. The card edge connector of claim 1, wherein: the unlocking mechanism is an integrally formed metal part, and the adjusting part is made of a metal material.

11. The card edge connector of claim 1, wherein: the sliding part is penetrated along the transverse direction to form a containing opening, and the elastic part is arranged corresponding to the containing opening in the transverse direction.

12. The card edge connector as defined in claim 11, wherein: the elastic part is formed by stamping a metal plate corresponding to the accommodating opening.

13. The card edge connector as defined in claim 11, wherein: the elastic part comprises a bending section and a limiting section connected with the bending section, the bending section is stressed to deform, the bending section extends in a serpentine manner along the longitudinal direction from the edge of the accommodating opening, the bending section does not exceed the accommodating opening in the transverse direction, and the limiting section is limited on the first side wall.

14. The card edge connector of claim 1, wherein: the sliding part comprises a longitudinal section and a bridging section connected with the longitudinal section, the longitudinal section is connected with the connecting part, the bridging section is connected with the longitudinal section and the elastic part, and the longitudinal section and the elastic part are oppositely arranged in the transverse direction.

15. The card edge connector as defined in claim 14, wherein: the longitudinal section is arranged close to the slot relative to the elastic part.

16. The card edge connector of claim 1, wherein: the earring is pivoted to the second end part around an axis, the earring comprises a first side wing part and a second side wing part which are positioned outside the second end part in the transverse direction, the first side wing part is provided with a clearance groove which penetrates in the longitudinal direction and is downward in an opening way, and the actuating part is actuated in the clearance groove.

17. The card edge connector as defined in claim 16, wherein: the thickness of the first side wing portion in the lateral direction is greater than the thickness of the second side wing portion in the lateral direction.

18. The card edge connector of claim 1, wherein: the earring is pivoted to the second end part around an axis, the earring comprises a first side wing part and a second side wing part which are positioned outside the second end part in the transverse direction, one end of the first side wing part, which is relatively close to the slot, is provided with a bearing surface, the bearing surface is formed by obliquely extending from the first end part to the second end part from top to bottom, and the actuating part is used for being abutted with the bearing surface.