CN115882304A - Connection structure and electronic device with same - Google Patents

Abstract

The invention mainly discloses a connecting structure and an electronic device with the same, wherein the connecting structure is arranged in the electronic device so that the electronic device can be combined with another external electronic device through the connecting structure. According to the design of the invention, the connecting structure comprises an actuating unit and an auxiliary unit. When the electronic device is combined with the external electronic device, the actuating unit is combined to the shell of the external electronic device under the cooperation of the auxiliary unit, so that two electrical ends of an electronic board card are respectively inserted into one slot in the shell of the electronic device and the other slot in the shell of the external electronic device. In this case, the electronic device can be coupled to the external electronic device through the electronic board card, thereby obtaining more expansion functions.

Description

Connection structure and electronic device with same

Technical Field

The present invention relates to the field of electronic devices, and more particularly, to a connecting structure for connecting two electronic devices.

Background

It is known that there are various industrial computers available today, such as: the system comprises a server computer, an embedded computer, a single-board computer, an industrial personal computer, a vehicle-mounted computer, a security monitoring host, a game host and the like. Even so, the system architecture of industrial computers currently designed in the industry can be roughly divided into two types.

The first is a single board computer, which is produced by integrating a chipset, an I/O interface unit and electronic components on a single motherboard. Generally, the size of an industrial computer using this architecture is large. Moreover, when the customer has a requirement for changing the design, the project engineer needs to redesign the circuit of the motherboard and replace the chipset, the I/O interface unit and/or the electronic components as necessary.

The second type is a modular computer, which integrates the chipset, I/O interface unit and electronic components into a motherboard, wherein the motherboard has at least one expansion slot for inserting a functional expansion board (expansion card). It is conceivable that the modular computer has a high flexibility in industrial applications. Particularly, as the industrial internet of things (IIoT), the intelligent internet of things (AIoT) and cloud computing are applied more and more, various special modular industrial computers are generated accordingly.

Therefore, for the design engineer of the modularized industrial computer, the simplest way to add the functional module to the existing modularized industrial computer is to add an expansion board, which is commonly referred to as a daughter board (daughterboard). However, as the number of expansion boards increases, the chassis structure and the heat dissipation system of the modular industrial computer must be changed synchronously. In other words, in order to add one or more expansion boards inside an existing modular industrial computer, engineers must redesign the chassis structure and the heat dissipation system, which results in a great burden on the engineers.

In view of the foregoing, the present invention provides a connection structure for joining two electronic devices to each other.

Disclosure of Invention

The present invention is directed to a connection structure and an electronic device having the same

The connecting structure is arranged in an electronic device so that the electronic device can be combined with another external electronic device through the connecting structure. According to the design of the invention, the connecting structure comprises an actuating unit and an auxiliary unit. When the electronic device is combined with the external electronic device, the actuating unit is combined to the shell of the external electronic device under the cooperation of the auxiliary unit, so that two electrical ends of an electronic board card are respectively inserted into one slot in the shell of the electronic device and the other slot in the shell of the external electronic device. In this case, the electronic device can be coupled to the external electronic device through the electronic board card, thereby obtaining more expansion functions.

To achieve the above object, the present invention provides an embodiment of the connection structure, which includes:

an actuating unit slidably coupled to an inner surface of a first plate, and comprising:

a first main body having an opening, and a first side of the opening edge of the opening having at least a first connection portion;

the buckling pieces are arranged on the first main body, and a buckling head of each buckling piece is exposed out of the outer surface of the first plate through one of the first openings arranged on the first plate;

at least one first elastic piece, which is positioned in the opening, and a first end of the first elastic piece is fixed on the first connecting part; and

a pushing piece arranged on the first main body, and a pressing head of the pushing piece exposes out of the first plate; and

an auxiliary unit fixedly arranged on the inner surface of the first plate and positioned in the opening; the auxiliary unit comprises a second main body with at least one second connecting part, and a second end of the first elastic piece is fixed on the second connecting part;

after the plurality of buckling pieces are buckled with a plurality of buckling holes in a second plate, the first plate is combined with the second plate, and the first main body is positioned at a first position under the action of the first elastic piece;

after applying force to the pressing head of the pushing piece to push the first main body to slide to a second position, the buckling connection between the buckling piece and the buckling connection hole is released, so that the first plate can be taken up to be separated from the second plate;

after the first plate is separated from the second plate, the first main body can slide and return under the action of the first elastic piece by pressing the pushing piece once again.

The invention also provides an electronic device, which has a first housing accommodating a first main board, wherein the first main board is provided with a first slot; it is characterized in that the electronic device has a connection structure, and the connection structure includes:

an actuating unit slidably coupled to an inner surface of a first plate of the first housing, and including:

a first main body having an opening, and a first side of the opening edge of the opening having at least a first connecting portion;

the buckling pieces are arranged on the first main body, and one buckling head of each buckling piece is exposed out of the outer surface of the first plate through one of the first openings arranged on the first plate;

at least one first elastic piece, which is positioned in the opening, and a first end of the first elastic piece is fixed on the first connecting part; and

a pushing piece arranged on the first main body, and a pressing head of the pushing piece exposes out of the first plate; and

an auxiliary unit fixedly arranged on the inner surface of the first plate and positioned in the opening; the auxiliary unit comprises a second main body with at least one second connecting part, and a second end of the first elastic piece is fixed on the second connecting part;

wherein, in an initial state, the first main body is positioned at a first position under the action of the first elastic piece;

after the plurality of buckling pieces are buckled with a plurality of buckling holes formed in a second plate of a shell of an external electronic device, the first plate is combined with the second plate, and the first main body is located at the first position;

after applying force to the pressing head of the pushing piece to push the first main body to slide to a second position, the buckling connection between the buckling piece and the buckling connection hole is released, so that the external electronic device can be taken up;

after the external electronic device is picked up, the first main body slides and returns under the action of the first elastic piece.

In an embodiment, the connection structure of the present invention further includes: the guide unit is arranged on the inner surface of the first plate and comprises a first guide part and a second guide part; wherein, a first guide channel is formed between the first guide piece and the inner surface of the first plate, a second guide channel is formed between the second guide piece and the inner surface of the first plate, and two side edges of the first main body are respectively embedded in the first guide channel and the second guide channel.

In one embodiment, a fitting member is disposed on a second side of the opening edge, the second side and the first side are opposite sides of the opening edge, and the auxiliary unit further includes:

a limiting piece which is arranged on the second main body to face the embedded piece and is provided with an accommodating groove;

a return spring arranged in the accommodating groove;

a clamping member (clamping chamber) arranged in the containing groove and supported by the return spring;

after the plurality of buckling pieces are buckled with the plurality of buckling holes respectively, the two clamping arms of the clamp piece are exposed out of the accommodating groove, and an included angle between the two clamping arms is a first angle;

when the first body moves to the second position, the embedded part pushes the clamp part to enable the two clamping arms of the clamp part to be sunk into the accommodating groove, so that the included angle between the two clamping arms is reduced from the first angle to a second angle, and the embedded part is clamped by the two clamping arms;

after the pushing piece is pressed under the condition that the two clamping arms clamp the embedded piece, the return spring pushes the clamp piece by the restoring force of one spring, so that the clamp piece moves to expose the two clamping arms out of the accommodating groove again; at this time, the first body slides and returns under the action of the first elastic member.

In one embodiment, the first plate includes:

the plurality of first openings enable the buckling joint of each buckling piece to be exposed out of the outer surface of the first plate through each opening;

the positioning columns stand on the outer surface of the first plate;

a first slot for an electronic board to pass through, so that a first electrical end of the electronic board is inserted into the first slot; under the condition that the first electrical end is inserted into the first slot, a second electrical end of the electronic board card is positioned outside the first plate; and

a first receptacle.

In an embodiment, a first board card connecting unit is disposed on the first main board, and the first board card connecting unit includes:

a first supporting member disposed on the first main board and close to one side of the first slot;

a third guiding member disposed on the first supporting member and close to one end side of the first slot; and

a fourth guiding member disposed on the first supporting member and close to the other end side of the first slot; wherein, the third guiding member and the fourth guiding member have a guiding slot, and two sides of the electronic board card are respectively embedded in the two guiding slots.

In one embodiment, a board fixing unit is disposed on the first supporting member and includes;

a second elastic member having a first end, a second end and an elastic section connected between the first end and the second end, wherein the first end is locked on the first supporting member; and

a propping piece arranged on the elastic section;

wherein, when the two sides of the electronic board are respectively embedded in the two guiding grooves, the propping piece is propped against the electronic board under the action of the elastic section;

when the first electrical end of the electronic board card is inserted into the first slot through the first slot, a plug-in is inserted into the first shell through the first jack to press the second end of the second elastic element, and then the elastic section is inclined backwards to prevent the electronic board card from being propped by the propping element, so that the electronic board card can be easily pulled upwards.

In an embodiment, the second plate further has a plurality of docking holes for respectively docking the positioning posts and a second slot for the electronic board to pass through.

In one embodiment, the housing of the external electronic device accommodates a second motherboard, the third motherboard is provided with a second slot and a second board connecting unit, and the second board connecting unit includes:

the second supporting piece is arranged on the second main board and is close to one side edge of the second slot;

a fifth guiding member disposed on the second supporting member, and having a guiding slot near one end side of the second slot; and

a sixth guiding member disposed on the second supporting member, close to the other end side of the second slot and having a guiding slot;

wherein, under the condition that the first plate and the second plate are combined, two side edges of the electronic board card are respectively embedded in the two guide grooves, and a second electrical end of the electronic board card is inserted into the second slot.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

FIG. 1A is a first perspective view of a connection structure of the present invention;

FIG. 1B is a second perspective view of the connection structure of the present invention;

FIG. 2 is a perspective view of a first plate member provided with the connecting structure of the present invention;

FIG. 3 is a perspective view of the first plate and a second plate shown in FIG. 2;

FIGS. 4A and 4B are operation diagrams of the connecting structure according to the present invention;

FIG. 5 is a perspective view of an electronic device with a connection structure according to the present invention;

FIG. 6 is an exploded view of a first housing of the electronic device;

FIG. 7 is a perspective view of an external electronic device;

FIG. 8 is an exploded view of a second housing of the external electronic device;

FIGS. 9A, 9B, 9C and 9D are operation diagrams of the electronic device with the connection structure of the present invention being combined with another external electronic device;

FIGS. 10A and 10B are operation diagrams illustrating the electronic device being disengaged from the external electronic device; and

fig. 11A and 11B are operation diagrams illustrating the electronic device being taken out of the electronic board.

Wherein the reference numerals

1: connection structure

11: actuating unit

110 first body

1101 opening

1102 first connection part

111 fastener

112 first elastic member

113 push part

114 fitting member

12 auxiliary unit

120: second body

121: second connecting part

122 limit part

123 clamping part

13 guide unit

131 first guide

132 second guide

2 electronic device

20: a first casing

201 first main board

202 first slot

203 first support member

204 third guide

205 fourth guide

206 second elastic member

207 abutting member

21 first plate member

211 first opening hole

212 second opening hole

213 first slotted hole

214 first jack

22 first base

2P positioning column

3 external electronic device

30 the second shell

301 the second main board

302 second slot

303 second support

304 fifth guide

305 sixth guide

31 the second plate

311 fastening hole

312 butt joint hole

313 the second slot

32: second base

33: cover plate

4: electronic board card

5, plug-in component

M is anti-scraping sheet

2P positioning column

Detailed Description

In order to more clearly describe a connection structure and an electronic device having the connection structure, preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Embodiments of the connection Structure

Please refer to fig. 1A and fig. 1B, which show a first perspective view and a second perspective view of a connection structure according to the present invention. Fig. 2 is a perspective view of a first plate with a connecting structure according to the present invention. As shown in fig. 1A, fig. 1B and fig. 2, the connection structure 1 of the present invention mainly includes an actuating unit 11, an auxiliary unit 12 and a guiding unit 13 including a first guiding member 131 and a second guiding member 132. Wherein, the actuating unit 11 is slidably connected to an inner surface of a first plate 21, and includes: a first body 110, a plurality of fasteners 111, at least one first elastic member 112, a pushing member 113, and a fitting member 114. In more detail, the first body 110 has an opening 1101, and two opposite sides (i.e., a first side and a second side) of an opening edge of the opening 1101 are respectively provided with at least one first connection portion 1102 and the engagement member 114. On the other hand, the plurality of fasteners 111 are disposed on the first body 110, and a fastening head of each fastener 111 is exposed to the outer surface of the first plate 21 through one of the plurality of first openings 211 disposed on the first plate 21.

As shown in fig. 1A, 1B and 2, a first end of the at least one first elastic element 112 is fixed to the first connection portion 1102 so as to be located in the opening 1101. In other embodiments, the first elastic member 112 may be a spring or a leaf spring. On the other hand, the pushing element 113 is disposed on the first body 110, and a pressing head of the pushing element 113 exposes the first plate 21. The auxiliary unit 12 is fixedly disposed on the inner surface of the first plate 21 and is located in the opening 1101. According to the design of the present invention, the auxiliary unit 11 includes: a second body 120, a limiting member 122, a return spring, and a clamping member 123. The limiting member 122 is disposed on the second body 120 to face the engaging member 114, and has an accommodating groove. Moreover, the return spring and the clamp member 123 are sequentially disposed in the accommodating groove, so that the clamp member 123 is supported by the return spring. As shown in fig. 1A and 1B, the clamp 123 has two clamping arms exposed outside the accommodating groove, and an included angle between the two clamping arms is a first angle.

As shown in fig. 1A, 1B and 2, the second body 120 has a second connecting portion 121, such that a second end of the first elastic element 112 is fixed on at least one second connecting portion 121 of the second body 120. Furthermore, the guiding unit 13 is disposed on the inner surface of the first plate 21, such that a first guiding channel is formed between the first guiding member 131 and the inner surface of the first plate 21, and a second guiding channel is formed between the second guiding member 132 and the inner surface of the first plate 21, such that two side edges of the first body 110 are respectively embedded in the first guiding channel and the second guiding channel. Continuing to refer to fig. 2, and referring to fig. 3, a perspective view of the first plate and a second plate shown in fig. 2 is shown. Please refer to fig. 4A and fig. 4B, which show the operation diagrams of the connection structure of the present invention.

As shown in fig. 2 and 4A, in an initial state, the first body 110 is located at a first position by a force (i.e., a restoring force of the spring) of the first elastic member 112. After the plurality of fasteners 111 are fastened to the plurality of fastening holes 311 of the second plate 31, the first plate 21 is combined with the second plate 31, and the first body 110 is still located at the first position. More specifically, after the plurality of buckling members are respectively buckled with the plurality of buckling holes, the two clamping arms of the clamp member are exposed out of the accommodating groove, and an included angle between the two clamping arms is a first angle.

As shown in fig. 3 and 4B, after applying a force to the pressing head of the pushing element 113 to push the first body 110 to slide to a second position, the buckling of the buckling element 111 and the buckling hole 311 is released, so that the first plate 21 can be taken up to be separated from the second plate 31. To be more specific, when the first body 110 moves to the second position, the engaging element 114 pushes the clamp element 123 to make two clamping arms of the clamp element 123 sink into the receiving slot, so that the included angle between the two clamping arms decreases from the first angle to a second angle, and the two clamping arms clamp the engaging element 114. After the first plate 21 is separated from the second plate 31, the pushing member 113 is pressed again to slide and return the first body 110 under the action of the first elastic member 112. More specifically, the pushing element 113 is pressed again under the condition that the two clamping arms clamp the engaging element 114, so that the return spring pushes the clamping element 123 with a spring restoring force thereof, thereby moving the clamping element 123 to expose the two clamping arms thereof out of the accommodating groove again; at this time, the first body 110 slides and returns by the force of the first elastic member 112. Wherein, as can be easily understood, the sliding return position of the first body 110 is related to the position of the opening edge of the first opening 211 of the first body 110 and the first plate 21 or the opening edge of the fastening hole 311 of the second plate 31, when the first body 110 slides under the force of the first elastic member 112, the first body 110 will stop sliding when the fastening member 111 abuts against the opening edge of the first opening 211 or the opening edge of the fastening hole 311.

Electronic device with connecting structure

Please refer to fig. 5, which illustrates a perspective view of an electronic device having a connection structure according to the present invention. Fig. 6 is an exploded view of the first housing of the electronic device. As shown in fig. 5 and fig. 6, the electronic device 2 has a first housing 20 accommodating a first main board 201, and the first housing 20 includes a first base 22 and a first board (or upper cover) 21. Moreover, a first slot 202 is disposed on the first motherboard 201. As can be seen from comparing fig. 2 and fig. 6, the first plate 21 shown in fig. 2 is the first plate 21 shown in fig. 6. In other words, the electronic device 2 has the connecting structure 1 of the present invention as shown in fig. 1A and 1B, and the connecting structure 1 is connected to the inner surface of the first board 21.

As shown in fig. 5 and 6, the first plate 21 includes: a plurality of first openings 211, a plurality of positioning posts 2P, a first slot 213, and a first receptacle 214, wherein the fastening head of each fastening member 111 is exposed to the outer surface of the first plate 21 through each opening 211. A plurality of positioning columns 2P stand on the outer surface of the first plate 21; in some embodiments, the first plate further includes a plurality of second openings 212 for respectively passing through the plurality of positioning pillars 2P. On the other hand, the first slot 213 is for an electronic card 4 to pass through, so that a first electrical end of the electronic card 4 enters the first housing 20 to be inserted into the first slot 202. As shown in fig. 5, when the first electrical terminal is inserted into the first slot 202, a second electrical terminal of the electronic board 4 remains outside the first board 21.

As shown in fig. 6, a first board guiding unit is further disposed on the first main board 201, and the first board guiding unit includes: a first supporting member 203, a third guiding member 204 and a fourth guiding member 205, wherein the first supporting member 203 is disposed on the first main board 201 and is close to a side of the first slot 202. The third guiding element 204 is disposed on the first supporting element 203 and near one end of the first slot 202. The fourth guiding element 205 is disposed on the first supporting element 203 and close to the other end of the first slot 202 opposite to the third guiding element 204. According to the design of the present invention, the third guiding element 204 and the fourth guiding element 205 both have a guiding slot, and two sides of the electronic board 4 are respectively embedded into the two guiding slots.

As shown in fig. 6, a board fixing unit is disposed on the first support 203, and includes: a second elastic member 206 and an abutting member 207. In particular, the second elastic element 206 has a first end, a second end, and an elastic section connected between the first end and the second end. As shown in fig. 6, the first end is locked on the first supporting member 203, and the propping member (such as a bump) 207 is disposed on the elastic section. With this design, when the two sides of the electronic board 4 are respectively embedded in the two guiding grooves, the propping member 207 props against the electronic board 4 by the acting force of the elastic section (i.e. the restoring force of the elastic piece).

After the connection structure 1 of the present invention is mounted on the inner surface of the first board 21 of the electronic device 2, the electronic device 2 can be combined with an external electronic device by using the connection structure 1 of the present invention.

Please refer to fig. 7, which shows a perspective view of an external electronic device. Please refer to fig. 8, which shows an exploded view of the second housing of the external electronic device. As shown in fig. 7 and 8, the external electronic device 3 has a second housing 30 accommodating a second main board 301, and the second housing 30 includes a first base 32 and a second board (or upper cover) 31. Moreover, a second slot 302 is disposed on the second main board 301. As can be seen from comparing fig. 3 and fig. 8, the second plate 31 shown in fig. 3 is the second plate 31 shown in fig. 8.

As shown in fig. 7 and 8, in addition to the plurality of buckling holes 311, the second plate 31 further has a plurality of mating holes 312 and a second slot 313. The plurality of docking holes 312 are used to dock the plurality of positioning posts 2P, respectively, and the second slot 313 is used for the electronic board 4 to pass through. As shown in fig. 8, a second board card connecting unit is further disposed on the second main board 301, and the second board card connecting unit includes: a second supporting member 303, a fifth guiding member 304 and a sixth guiding member 305, wherein the second supporting member 303 is disposed on the second main board 301 and is close to a side of the second slot 302. The fifth guide 304 is disposed on the second support 303 and near one end of the second slot 302. The sixth guide 305 is disposed on the second support 303 opposite to the fifth guide 304, and is close to the other end of the second slot 302. According to the design of the present invention, the fifth guide 304 and the sixth guide 305 both have a guide slot.

Further, as shown in fig. 6, a scraping prevention blade M having a narrow opening is attached to the inner surface of the first plate 21 to cover the first slot 213, so that the electronic board 4 can pass through the narrow opening when passing through the first slot 213, thereby preventing the electronic board 4 from being scratched by the edge of the first slot 213. Similarly, as shown in fig. 8, the anti-scraping blade M is also attached to the inner surface of the second plate 31 to cover the second slot 313. It should be noted that the adhesion of the anti-scraping blade M to the inner surface of the second plate 31 cannot be clearly shown due to the angle of the second plate 31, and therefore, in fig. 8, the anti-scraping blade M is moved to the second board guiding unit for illustration.

Fig. 9A, 9B, 9C and 9D are operation diagrams illustrating the electronic device with the connection structure of the present invention combined with another external electronic device. As shown in fig. 9A, 5 and 6, an electronic board (i.e., interface card) 4 is inserted into the first slot 202 with a first electrical end thereof after passing through the first slot 213 of the first plate 21 of the electronic device 2. At this time, the second electrical end of the electronic board 4 is located outside the first plate 21, two sides of the electronic board 4 are respectively embedded in the third guide 204 and the fourth guide 205, and the abutting member 207 abuts against the electronic board 4 under the action of the elastic section. In other words, the first board guiding unit and the board fixing unit are used for assisting in fixing the electronic board 4 and keeping the electronic board 4 from being affected by external force.

As shown in fig. 9B, in an initial state, the second plate 31 of the external electronic device 3 is covered by a cover plate 33. Therefore, the plurality of fastening holes 311, the plurality of docking holes 312 and the second slot 313 of the second plate 31 are not exposed when covered by the cover plate 33. It will be appreciated that the cover 33 must be removed prior to coupling the external electronic device 3 to the electronic device 2.

As shown in fig. 9C and fig. 3, after the plurality of fasteners 111 are fastened to the plurality of fastening holes 311 of the second plate 31 of the external electronic device 3, the first plate 21 is combined with the second plate 31. As shown in fig. 9D, after the first plate 21 is combined with the second plate 31, the two electrical terminals of the electronic board 4 are inserted into the first slot 202 in the electronic device 2 and the second slot 302 in the external electronic device 3, respectively. In this case, the electronic device 2 is coupled to the external electronic device 3 through the electronic board 4, so as to obtain more extended functions.

As shown in fig. 9C and fig. 3, after the plurality of fasteners 111 are fastened to the plurality of fastening holes 311 of the second plate 31 of the external electronic device 3, the first plate 21 is combined with the second plate 31. As shown in fig. 4A and 9D, after the plurality of fasteners 111 are respectively fastened to the plurality of fastening holes 311, the first plate 21 is combined with the second plate 31, and the first body 110 is located at the first position. Moreover, two electrical terminals of the electronic board 4 are respectively inserted into the first slot 202 located in the electronic device 2 and the second slot 302 located in the external electronic device 3. In this case, the external electronic device 3 is coupled to the electronic device 2 through the electronic board 4, so as to obtain more extended functions.

Fig. 10A and 10B are operation diagrams illustrating the electronic device and the electronic device being disengaged. As shown in fig. 4B, fig. 10A and fig. 10B, to detach the external electronic device 3 from the electronic device 2, a force is applied to the pressing head of the pushing member 113 to push the first body 110 to slide, so that the first body 110 is located at the second position. At this time, the locking member 111 is located in the locking hole 311, but does not lock the edge of the locking hole 311, so that the external electronic device 3 can be taken up to be separated from the electronic device 2. As shown in fig. 4B and fig. 4A, after the first plate 21 is separated from the second plate 31, the first body 110 slides and returns under the action of the first elastic element 112 by pressing the pushing element 113 once again.

Fig. 11A and 11B show the operation of taking the electronic board 4 out of the electronic device. As shown in fig. 11A, when the first electrical end of the electronic card 4 is inserted into the first slot 202, a plug-in 5 (e.g., a screw driver) is inserted into the first housing 20 through the first insertion hole 214, so as to press the second end of the second elastic element 206 by the plug-in 5. In this case, as shown in fig. 8 and fig. 11B, the elastic section is inclined backward so that the electronic board 4 is not pressed by the pressing member 207, and thus the electronic board 4 can be easily pulled up.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (20)

1. A connecting structure, characterized by comprising:

an actuating unit slidably connected to an inner surface of a first plate, comprising:

a first main body having an opening, and a first side of the opening edge of the opening having at least a first connecting portion;

a plurality of buckling pieces arranged on the first main body, wherein a buckling head of each buckling piece is exposed out of the outer surface of the first plate through one of a plurality of first openings arranged on the first plate;

at least one first elastic piece, which is positioned in the opening, and a first end of the first elastic piece is fixed on the first connecting part; and

a pushing piece arranged on the first main body, and a pressing head of the pushing piece exposes out of the first plate; and

an auxiliary unit fixedly arranged on the inner surface of the first plate and positioned in the opening; the auxiliary unit comprises a second main body with at least one second connecting part, and a second end of the first elastic piece is fixed on the second connecting part;

after the plurality of buckling pieces are buckled with a plurality of buckling holes in a second plate, the first plate is combined with the second plate, and the first main body is positioned at a first position under the action of the first elastic piece;

after applying force to the pressing head of the pushing piece to push the first main body to slide to a second position, the buckling connection between the buckling piece and the buckling connection hole is released, so that the first plate can be taken up to be separated from the second plate;

after the first plate is separated from the second plate, the first main body can slide and return under the action of the first elastic piece by pressing the pushing piece once again.

2. The connection structure according to claim 1, further comprising:

a guide unit disposed on an inner surface of the first plate and including a first guide member and a second guide member; a first guide channel is formed between the first guide piece and the inner surface of the first plate, a second guide channel is formed between the second guide piece and the inner surface of the first plate, and two side edges of the first main body are embedded in the first guide channel and the second guide channel respectively.

3. The connecting structure according to claim 1, wherein the first elastic member is any one of: a spring or a leaf spring.

4. The connecting structure according to claim 1, wherein a fitting member is provided on a second side of the mouth edge of the opening, the second side and the first side being opposite sides of the mouth edge of the opening.

5. The connection structure according to claim 4, wherein the auxiliary unit further comprises:

a limiting piece which is arranged on the second main body to face the embedded piece and is provided with an accommodating groove;

a return spring arranged in the accommodating groove;

a clamping piece which is arranged in the containing groove and is propped against by the reset spring;

after the plurality of buckling pieces are buckled with the plurality of buckling holes respectively, the two clamping arms of the clamp piece are exposed out of the accommodating groove, and an included angle between the two clamping arms is a first angle;

when the first body moves to the second position, the embedded part pushes the clamp part to enable the two clamping arms of the clamp part to be sunk into the accommodating groove, so that the included angle between the two clamping arms is reduced from the first angle to a second angle, and the embedded part is clamped by the two clamping arms.

6. The connecting structure according to claim 5, wherein after said pushing member is pressed with said two clip arms gripping said engaging member, said return spring pushes said clamp member with a spring restoring force thereof to move said clamp member so that said two clip arms thereof are exposed again from said receiving groove; at this time, the first body is slidably restored by the force of the first elastic member.

7. An electronic device is provided with a first shell accommodating a first mainboard, and the first mainboard is provided with a first slot; it is characterized in that the electronic device has a connection structure, and the connection structure includes:

an actuating unit slidably connected to an inner surface of a first plate of the first housing, and comprising:

a first main body having an opening, and a first side of the opening edge of the opening having at least a first connecting portion;

the buckling pieces are arranged on the first main body, and one buckling head of each buckling piece is exposed out of the outer surface of the first plate through one of the first openings arranged on the first plate;

at least one first elastic piece, which is positioned in the opening, and a first end of the first elastic piece is fixed on the first connecting part; and

a pushing piece arranged on the first main body, and a pressing head of the pushing piece exposes out of the first plate; and

an auxiliary unit fixedly arranged on the inner surface of the first plate and positioned in the opening; the auxiliary unit comprises a second main body with at least one second connecting part, and a second end of the first elastic piece is fixed on the second connecting part;

after the plurality of fasteners are fastened to the plurality of fastening holes of a second plate of a second housing 30 of an external electronic device, the first plate is combined with the second plate, and the first main body is located at a first position under the action of the first elastic element;

after applying force to the pressing head of the pushing piece to push the first main body to slide to a second position, the buckling connection between the buckling piece and the buckling connection hole is released, so that the external electronic device can be taken up; after the external electronic device is picked up, the first main body slides and returns under the action of the first elastic piece.

8. The electronic device of claim 7, further comprising: the guide unit is arranged on the inner surface of the first plate and comprises a first guide part and a second guide part; a first guide channel is formed between the first guide piece and the inner surface of the first plate, a second guide channel is formed between the second guide piece and the inner surface of the first plate, and two side edges of the first main body are embedded in the first guide channel and the second guide channel respectively.

9. The electronic device of claim 7, wherein the first elastic member is any one of: a spring or a leaf spring.

10. The electronic device of claim, wherein a fitting member is disposed on a second side of the opening edge of the opening, the second side and the first side being opposite sides of the opening edge of the opening, and the auxiliary unit further comprises a limiting member disposed on the second body.

11. The connecting structure as claimed in claim 10, wherein the fitting member is inserted into a groove of the position-limiting member while applying a force to the pressing head of the pushing member to push the first body to slide, and the first body stops sliding to be located at the second position with the fitting member abutting against a bottom of the groove.

12. The electronic device of claim 7, wherein the first plate comprises:

the positioning columns stand on the outer surface of the first plate;

a first slot for an electronic board to pass through so that a first electrical end of the electronic board is inserted into the first slot; under the condition that the first electrical end is inserted into the first slot, a second electrical end of the electronic board card is positioned outside the first plate; and

a first receptacle.

13. The electronic device of claim 12, wherein the first motherboard has a first board connecting unit thereon, and the first board connecting unit includes:

a first supporting member disposed on the first main board and close to one side of the first slot;

a third guiding member disposed on the first supporting member and close to one end side of the first slot; and

a fourth guiding member disposed on the first supporting member and close to the other end side of the first slot; wherein, the third guiding member and the fourth guiding member have a guiding slot, and two sides of the electronic board card are respectively embedded in the two guiding slots.

14. The electronic device of claim 13, wherein a board fixing unit is disposed on the first support member and includes;

a second elastic member having a first end, a second end and an elastic section connected between the first end and the second end, wherein the first end is locked on the first supporting member; and

a propping piece arranged on the elastic section;

when the two sides of the electronic board are respectively embedded in the two guiding grooves, the propping piece is propped against the electronic board under the action of the elastic section.

15. The electronic device as claimed in claim 13, wherein after a plug-in is inserted into the first housing through the first slot and then the second end of the second resilient member is pressed, the resilient section is tilted backward to prevent the electronic board from being pressed by the pressing member, so that the electronic board can be easily pulled up.

16. The electronic device of claim 14, wherein the second board further has a plurality of mating holes for respectively mating with the plurality of positioning posts and a second slot for the electronic board to pass through.

17. The electronic device of claim 16, wherein the second housing of the external electronic device houses a second motherboard, the third motherboard has a second slot and a second board connecting unit, and the second board connecting unit includes:

the second supporting piece is arranged on the second main board and is close to one side edge of the second slot;

a fifth guiding member disposed on the second supporting member, and having a guiding slot near one end of the second slot; and

a sixth guiding member disposed on the second supporting member, and having a guiding slot near the other end of the second slot;

wherein, under the condition that the first plate and the second plate are combined, two side edges of the electronic board card are respectively embedded in the two guide grooves, and a second electrical end of the electronic board card is inserted into the second slot.

18. The electronic device of claim 16, wherein a scratch-resistant sheet having a slot is attached to the inner surface of the first plate to cover the first slot, so that the electronic board can pass through the slot when passing through the first slot, thereby preventing the electronic board from being scratched by the edge of the first slot.

19. The electronic device of claim 16, wherein a scratch-resistant sheet having a slot is attached to the inner surface of the second plate for covering the second slot, so that the electronic board can pass through the slot when passing through the second slot, thereby preventing the electronic board from being scratched by the edge of the second slot.

20. The electronic device of claim 16, wherein the external electronic device further comprises a cover plate coupled to the second plate to cover the plurality of fastening holes, the plurality of mating holes and the second slot.

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