CN108615991B

CN108615991B - Card seat assembly and electronic device

Info

Publication number: CN108615991B
Application number: CN201810339382.9A
Authority: CN
Inventors: 姚坤
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-04-16
Filing date: 2018-04-16
Publication date: 2020-01-14
Anticipated expiration: 2038-04-16
Also published as: CN108615991A

Abstract

The application discloses a card seat assembly, which is applied to an electronic device and comprises a shell, a card seat and a card seat, wherein the shell is provided with a through hole; the bearing plate is fixed in the shell; the clamping support is provided with a tray and a baffle connected to the tray, the tray penetrates through the through hole of the shell and is connected to the bearing plate in a sliding manner; the button assembly comprises a button, a top rod and a lever, the lever is rotatably connected to the bearing plate, and a first end of the lever abuts against the tray; one end of the ejector rod abuts against the second end of the lever along the sliding direction of the tray, and the ejector rod is locked with the tray; the key is abutted against the other end of the ejector rod; when the key is pressed, the ejector rod and the tray are staggered, and the ejector rod pushes the lever, so that the tray is ejected out of the shell under the action of the second end of the lever. The application also discloses an electronic device.

Description

Card seat assembly and electronic device

Technical Field

The application relates to the field of terminal equipment, in particular to a card seat assembly and an electronic device.

Background

Existing mobile phones include a card holder for carrying an information card, and the tray in the card holder is usually engaged with the inside of the housing to lock the card holder to the housing. When the information card needs to be taken out, the ejector pin is needed to separate the tray from the inner structure of the shell so as to push the card out of the shell, so that the information card in the card support can be taken out, and the operation is inconvenient.

Disclosure of Invention

The application provides a card seat assembly convenient for card taking and an electronic device.

The embodiment of the application provides a cassette subassembly is applied to electron device, includes:

a housing having a through hole;

the bearing plate is fixed in the shell;

the clamping support is provided with a tray and a baffle connected to the tray, the tray penetrates through the through hole of the shell and is connected to the bearing plate in a sliding manner;

the button assembly comprises a button, a push rod and a lever, the lever is rotatably connected to the bearing plate, and the first end of the lever abuts against the tray; one end of the ejector rod abuts against the second end of the lever along the sliding direction of the tray, and the ejector rod is locked with the tray; the key is abutted against the other end of the ejector rod; when the key is pressed, the ejector rod and the tray are staggered, and the ejector rod pushes the lever, so that the tray is ejected out of the shell under the action of the second end of the lever.

On the other hand, the embodiment of the application also provides an electronic device which comprises a card seat assembly.

The card seat subassembly and the electron device that this application embodiment provided promote the ejector pin through pressing the button to make the ejector pin rotate the lever, and then make the tray ejecting casing under the effect of the second end of lever, can realize semi-automatic getting the card under the condition without the help of appurtenance (like the thimble), easy operation, convenience, therefore the card seat subassembly gets the card convenience, and the electronic equipment who uses the card seat subassembly gets the card convenience.

Drawings

In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic view of an electronic device provided in an embodiment of the present application;

FIG. 2 is a schematic view of the cartridge assembly of FIG. 1 in a retracted state;

FIG. 3 is a schematic view of the carrier plate, tray and cover of the card-holder assembly of FIG. 2;

FIG. 4 is a schematic view of the card-holder assembly of FIG. 2 in an ejected state;

FIG. 5 is a schematic view of the cartridge assembly of FIG. 2 further provided with a retaining projection and an extension spring;

FIG. 6 is a schematic view of the key of the card holder assembly of FIG. 2 arranged in a key slot;

FIG. 7 is a schematic view of the cartridge assembly of FIG. 2 locked by the first and second magnetic members;

FIG. 8 is an exploded view of the lever and pin assembly of FIG. 2;

FIG. 9 is a schematic view of a lever of FIG. 8;

fig. 10 is a schematic view of another lever of fig. 8.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

In order that the above objects, features and advantages of the present application can be more clearly understood, a detailed description of the present application will be given below with reference to the accompanying drawings and detailed description. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and the described embodiments are merely a subset of the embodiments of the present application, rather than all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

In addition, the following description of the various embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the application may be practiced. Directional phrases referred to in this application, such as "length," "width," "X-direction," "Y-direction," and the like, are used in a directional sense only with reference to the attached drawings and are, therefore, used in a better and clearer sense to describe and understand the present application and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are intended to be inclusive and mean, for example, that they may be fixedly coupled, detachably coupled, or integrally coupled; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1, an electronic device 100 is provided in the present embodiment. The electronic device 100 may be a tablet computer, a mobile phone, a wearable device, and the like. The electronic device 100 includes a main board 20 and a socket assembly 10, wherein the main board 20 is electrically connected to the socket assembly 10 for data transmission with the socket assembly 10, such as reading information of an information card 30 or a memory card installed in the socket assembly 10.

It is understood that the information card 30 carried by the card socket assembly 10 includes, but is not limited to, a Subscriber Identity Module (SIM) card and a Secure Digital memory card (SD).

Referring to fig. 2 and 3, a cartridge assembly 10 is provided according to an embodiment of the present disclosure. The card seat assembly 10 comprises a shell 1, wherein the shell 1 is provided with a through hole 11; a bearing plate 4, wherein the bearing plate 4 is fixed in the shell 1; the card holder 2 is provided with a tray 22 and a baffle 21 connected to the tray 22, the tray 22 is arranged in the through hole 11 of the shell 1 in a penetrating way, and the tray 22 is connected to the bearing plate 4 in a sliding way; the key assembly 3 comprises a key 31, a top bar 32 and a lever 33, the lever 33 is rotatably connected to the bearing plate 4, and a first end 331 of the lever 33 abuts against the tray 22; one end of the top bar 32 abuts against the second end 332 of the lever 33 along the sliding direction of the tray 22, and the top bar 32 is locked with the tray 22; the key 31 abuts against the other end of the ejector rod 32; when the key 31 is pressed, the push rod 32 is misaligned with the tray 22, and the push rod 32 pushes the lever 33, so that the tray 22 is pushed out of the housing 1 under the action of the second end 332 of the lever 33.

Referring to fig. 2, when the card holder 2 needs to be in the retracted state without taking the card, the ejector 32 is locked with the tray 22, so that the card holder 2 is accommodated in the housing 1 of the electronic device 100, and data transmission is performed between the SIM card or the SD card on the tray 22 and the motherboard 20, which is in a normal working state.

Referring to fig. 4, when the card needs to be taken out, that is, the card holder 2 needs to be in the ejection state, the push button 31 is pressed, so that the push rod 32 is pushed, the push rod 32 rotates the lever 33, and the first end 331 of the lever 33 in contact with the tray 22 pushes the tray 22 out of the housing 1 along with the rotation of the lever 33, thereby achieving the card taking.

The card taking operation can realize semi-automatic card taking without an auxiliary tool (such as an ejector pin), and is simple and convenient to operate, so that the card seat assembly 10 is convenient to take the card, and the electronic equipment applying the card seat assembly 10 is convenient to take the card.

As can be understood, referring to fig. 4, the movement of the card holder 2 along the axial direction of the through hole 11 and in the direction away from the housing 1 defines that the card holder 2 is ejected out of the housing 1; referring to fig. 2, the movement of the card holder 2 along the axial direction of the through hole 11 and toward the direction close to the housing 1 defines that the card holder 2 slides into the housing 1.

Referring to fig. 1 and 2, the housing 1 may be a middle frame of the electronic device 100. The housing 1 has two long sides E1 and two short sides E2 connected between the two long sides E1. The through hole 11 opens on one long side E1 of the case 1. The through hole 11 has a strip shape and extends along the longitudinal extension direction of the long side E1 of the housing 1. Of course, in other embodiments, the housing 1 may include a middle frame and a rear cover integrally connected to the middle frame.

For convenience of description, the longitudinal extending direction of the short side E2 of the case 1 is defined as the X direction; the direction in which the long side E1 of the case 1 extends in the longitudinal direction is defined as the Y direction.

It can be understood that, referring to fig. 2, the housing 1 further has a receiving groove 12, the through hole 11 is opened on the bottom wall 12a of the receiving groove 12, and when the top bar 32 is locked with the tray 22, the baffle 21 is located in the receiving groove 12.

Specifically, the receiving groove 12 is coaxial with the through hole 11. The shape of the receiving groove 12 is matched with the shape of the baffle 21, so that when the card holder 2 is in the retracted state, the baffle 21 can be better received in the receiving groove 12, the baffle 21 is prevented from extending out of the housing 1 to affect the smoothness of the appearance surface of the electronic device 100, the baffle 21 is prevented from being damaged due to protrusion, and the reliability of the card holder assembly 10 is improved.

Referring to fig. 2, the accommodating groove 12 has a groove wall 12b surrounding a central axis thereof and a bottom wall 12a connected to the groove wall 12b, wherein the bottom wall 12a is disposed opposite to an opening of the accommodating groove 12. Further, a through hole 11 is formed in the bottom wall 12a, so that when the card holder 2 is in the retracted state, the tray 22 can be inserted into the interior of the housing 1 through the through hole 11, and the baffle 21 can be accommodated in the accommodating groove 12.

Referring to fig. 2 and 3, the carrier 4 may be a circuit board, and the carrier 4 is provided with a plurality of spring shells 4a for electrically connecting with the information card 30 to read data on the information card 30 and transmit the data to the motherboard 20. Wherein the carrier plate 4 is fixed inside the housing 1. The carrier plate 4 is substantially rectangular.

Referring to fig. 2, the card holder 2 includes a baffle 21 and a tray 22 fixedly connected, the tray 22 is used for carrying the information card 30, and the tray 22 extends into the housing 1 through the through hole 11 and is carried on the carrying plate 4. The baffle 21 is a part for a user to take in and take out the card holder 2, and when the card holder 2 is in a retracted state, the baffle 21 is accommodated in the accommodating groove 12.

Referring to fig. 2 and 4, the key assembly 3 includes a key 31, a plunger 32 and a lever 33, which are abutted in sequence, and the lever 33 is abutted on the tray 22, so that when the key 31 is pressed (the pressing action is that the key 31 moves toward the direction close to the housing 1 along the axial direction of the through hole 11), the plunger 32 and the lever 33 can provide a pushing force for the tray 22 under the transmission of the pressing force, so that the tray 22 is dislocated from the plunger 32, and the tray 22 can be ejected from the housing 1.

Referring to fig. 2, the key 31 has a pressing portion 311 and an abutting portion 312 connected in sequence, and the abutting portion 312 is connected to the other end of the push rod 32 in a snap-fit manner. The pressing portion 311 is a portion pressed by a user, and the abutting portion 312 extends into the housing 1 and is connected to the other end of the push rod 32 by snap fit. Specifically, the abutting portion 312 has an L-shape and can be better fitted to the other end of the rod 32.

It will be appreciated that the arrangement of the keys 31 on the housing 1 includes, but is not limited to, the following embodiments:

in one embodiment, referring to fig. 2, the key 31 is disposed adjacent to the baffle 21, and the key 31 is accommodated in the accommodating groove 12.

By arranging the key 31 adjacent to the baffle 21 and accommodating the key 31 and the baffle 21 in the accommodating groove 12, the number of the open grooves of the shell 1 can be reduced, and the sealing performance of the electronic device 100 can be ensured.

As can be understood, referring to fig. 5, the groove wall 12b of the accommodating groove 12 is further convexly provided with a limiting protrusion 12c, the limiting protrusion 12c faces the key 31, and the limiting protrusion 12c partially covers the key 31, so that the key 31 moves between the limiting protrusion 12c and the bottom wall 12a of the accommodating groove 12. Of course, in other embodiments, the groove wall 12b of the accommodating groove 12 may not be protruded with the limiting protrusion 12c, i.e. the key 31 can extend out of the accommodating groove 12.

The limiting protrusion 12c is disposed on the groove wall 12b, so that the key 31 cannot extend out of the accommodating groove 12, and the outer surface of the housing 1 is kept flush.

The size of the limiting protrusion 12c is smaller than that of the pressing portion 311, so that the pressing of the pressing portion 311 is prevented from being affected. The limiting protrusion 12c does not extend out of the opening of the accommodating groove 12, and is arranged close to the opening of the accommodating groove 12, so that the shell 1 is flush.

As can be understood, referring to fig. 5, the key assembly 3 further includes an extension spring 34, and the extension spring 34 is elastically connected between the bottom wall 12a of the accommodating groove 12 and the key 31, so that the key 31 abuts against the limiting protrusion 12c under the elastic force of the extension spring 34.

By further arranging the extension spring 34, the key 31 abuts against the limit protrusion 12c in the natural deformation state of the extension spring 34, so that the key 31 is prevented from shaking when the card holder 2 is in the retraction state, and the reliability of the card holder assembly 10 and the electronic device 100 is further improved.

Specifically, referring to fig. 2 and 5, the extension spring 34 is disposed between the groove wall 12b of the accommodating groove 12 and the pressing portion 311, and the pressing portion 311 is always abutted against the limiting protrusion 12c under the pulling force of the extension spring 34. When the card holder 2 needs to be in the ejection state, the pressing portion 311 is pressed against the pulling force of the extension spring 34, so that the pressing portion 311 moves in the axial direction toward the groove wall 12b close to the accommodating groove 12 to provide a pressing force to the push rod 32 abutting against the abutting portion 312 of the key 31, so that the push rod 32 pushes the lever 33 to rotate, and the second end 332 of the lever 33 ejects the tray 22 out of the housing 1.

In another embodiment, referring to fig. 6, the housing 1 further has a key pressing groove 13, the key pressing groove 13 is disposed adjacent to the accommodating groove 12, and the key 31 is accommodated in the key pressing groove 13.

Referring to fig. 2, the top bar 32 is a slender bar. The longitudinal extension direction thereof is along the short side direction of the housing 1. The push rod 32 has opposite ends, one end of which abuts against the lever 33 and the other end of which abuts against the abutting portion 312 of the key 31. And the carrier rod 32 further has a side wall 32a, the side wall 32a being connected between both ends. Side wall 32a is locked to tray 22.

It can be understood that, referring to fig. 2, the other end of the push rod 32 is connected with the abutting portion 312 in a snap-fit manner, so that the push rod 32 can be always connected with the abutting portion 312, and the push rod 32 and the abutting portion 312 are conveniently disassembled and assembled. Of course, in other embodiments, the other end of the push rod 32 and the abutting portion 312 can also be bonded or screwed.

Thus, when the key 31 is pressed, the abutting portion 312 of the key 31 can preferably transmit the pressing force to the top bar 32 snap-connected to itself, thereby realizing reliable ejection of the card holder 2.

It will be appreciated that the locking of the ram 32 to the tray 22 includes, but is not limited to, the following:

in one embodiment, referring to fig. 2, the top bar 32 has a locking protrusion 35 protruding toward the tray 22, the tray 22 has a locking recess 36, and the locking protrusion 35 is embedded in the locking recess 36, so that the top bar 32 is locked with the tray 22.

Specifically, the side wall 32a of the jack 32 has a locking projection 35 projecting toward the tray 22, and the tray 22 has a locking recess 36 corresponding to the locking projection 35. When the card holder 2 needs to be in a retraction state, the tray 22 is slid into the housing 1, and after the tray 22 is slid in place, the locking groove 36 of the tray 22 is embedded with the locking protrusion 35 of the ejector rod 32, so that the card holder 2 is locked. Referring to fig. 4, when the card holder 2 needs to be in the ejection state, the key 31 is pressed to make the lever 33 eject the tray 22, wherein the tray 22 slides relative to the ejector rod 32 due to the ejection force applied thereto by the lever 33, and gradually dislocates from the locking protrusion 35 of the ejector rod 32, thereby unlocking the card holder 2.

In another embodiment, referring to fig. 7, the top bar 32 is provided with a first magnetic member 37, the tray 22 is provided with a second magnetic member 38, and the first magnetic member 37 and the second magnetic member 38 are attracted to each other, so that the top bar 32 and the tray 22 are locked together.

Specifically, the side wall 32a of the top bar 32 is provided with a first magnetic member 37, and the tray 22 has a second magnetic member 38 engaged with the first magnetic member 37. When the card holder 2 needs to be in a retracted state, the tray 22 is slid into the housing 1, and after the tray 22 is slid to the proper position, the second magnetic member 38 of the tray 22 and the first magnetic member 37 of the top rod 32 are attracted together, so that the card holder 2 is locked. When the card holder 2 needs to be in the ejection state, the key 31 is pressed, so that the lever 33 ejects the tray 22, wherein the tray 22 slides relative to the ejector rod 32 due to the ejection force applied to the tray by the lever 33, so that the second magnetic member 38 gradually dislocates with the first magnetic member 37 of the ejector rod 32, and the unlocking of the card holder 2 is realized.

Referring to fig. 2, the first end 331 and the second end 332 of the lever 33 abut against the tray 22 and one end of the push rod 32, respectively, so that the force on the push rod 32 can push the lever 33 to rotate, so that the first end 331 of the lever 33 pushes the tray 22 out of the housing 1.

Referring to fig. 8, the lever 33 is rotatably connected to the supporting plate 4 through a pin assembly 39.

It can be understood that, referring to fig. 2, fig. 3 and fig. 8, the pin assembly 39 includes a first fixing pin 391 and a second fixing pin 392, the first fixing pin 391 is fixed on the bearing plate 4, the lever 33 passes through the first fixing pin 391, and the second fixing pin 392 passes through the lever 33 and is fixed with the first fixing pin 391, so as to realize the pivotal connection of the lever 33 on the bearing plate 4.

In this embodiment, the first fixing pin 391 is close to the corner of the carrier plate 4 to avoid interference with the sliding of the card holder 2, so as to ensure that the carrier plate 4 has enough space for the card holder 2 to slide, thereby further improving the reliability of the card holder assembly 10.

In the present embodiment, referring to fig. 2 and 8, the lever 33 is substantially V-shaped, after the lever 33 is rotatably connected to the carrier plate 4, the second end 332 of the lever 33 abuts against one end of the push rod 32, and the first end 331 of the lever 33 abuts against the card holder 2.

As can be understood, referring to fig. 9, the second end 332 of the lever 33 has a first surface F1 and a second surface F2 adjacent to each other, the first surface F1 abuts on the top bar 32, and the second surface F2 faces the side wall 32a of the top bar 32.

Further, referring to fig. 10, the first surface F1 of the lever 33 is further provided with a positioning protrusion 33a in a protruding manner, the positioning protrusion 33a and the second surface F1 form an embedding groove 33b, and one end of the push rod 32 is embedded in the embedding groove 33 b.

The second end 332 of the lever 33 is provided with a U-shaped notch to form an embedding groove 33b, and one end of the push rod 32 is embedded in the embedding groove 33b to prevent the two from separating, thereby further improving the reliability of the card seat assembly 10. Of course, in other embodiments, one end of the push rod 32 is fixedly connected to the second end 332 of the lever 33.

It can be understood that, referring to fig. 2 and 9, the moment between the first end 331 of the lever 33 and the rotation axis of the lever 33 is greater than the moment between the second end 332 of the lever 33 and the rotation axis of the lever 33. The moment of the lever 33 is designed to be the above structure, so that the lever 33 has a large elastic force transmitted to the first end 331 through the second end 332, and the card holder 2 can be effectively ejected out of the housing 1.

Further, referring to fig. 3, the card holder assembly 10 further includes a cover 40, the cover 40 is covered on the carrier plate 4 to form an accommodating space Z1, and the accommodating space Z1 is communicated with the through hole 11, so that the tray 22 is located in the accommodating space Z1.

In this embodiment, referring to fig. 3, the cover 40 is substantially rectangular, four sides of the cover are correspondingly bent and disposed on the supporting board 4, the cover 40 and the supporting board 4 are enclosed to form an accommodating space Z1, an opening of the accommodating space Z1 is opposite to the through hole 11, so that the tray 22 can be inserted into the accommodating space Z1 after the card holder 2 slides into the housing 1 through the through hole 11. Through the interaction between the cover 40 and the carrier plate 4, the information card 30 carried on the tray 22 can be in close contact with the elastic sheet 4a on the carrier plate 4, so that the carrier plate 4 can read the data on the information card 30. The additional cover 40 and the carrier plate 4 form an accommodating space Z1, which is convenient for the carrier plate 4 to read data of the information card 30, and further improves the reliability of the card socket assembly 10. Of course, in other embodiments, the information card 30 in the card holder assembly 10 can be in close contact with the bullet skin 4a on the bearing plate 4, and the cover 40 can be removed.

When the electronic device 100 provided by the embodiment of the application needs to be loaded with the information card 30, the information card 30 is loaded on the tray 22; then, the tray 22 is slid into the housing 1 through the through hole 11 of the housing 1, and the information card 30 on the tray 22 abuts against the elastic sheet 4a on the bearing plate 4, so that the bearing plate 4 can read the data on the information card 30; after the tray 22 slides to the maximum stroke, the tray 22 is locked with the lift pins 32, and the shutter 21 is accommodated in the accommodating groove 12. When the card is required to be taken out, the key 31 is pressed, the ejector rod 32 is pushed, the ejector rod 32 rotates the lever 33, and the first end 331 of the lever 33, which is in contact with the tray 22, pushes the tray 22 out of the shell 1 along with the rotation of the lever 33, so that the card is taken out.

The card seat assembly 10 and the electronic device 100 provided by the application push the ejector rod 32 by pressing the key 31, so that the ejector rod 32 rotates the lever 33, further the tray 22 ejects the shell 1 under the action of the second end 332 of the lever 33, semi-automatic card taking can be realized under the condition without the help of an auxiliary tool (such as an ejector pin), the operation is simple and convenient, therefore, the card seat assembly 10 is convenient to take the card, and the electronic equipment applying the card seat assembly 10 is convenient to take the card.

The foregoing is a preferred embodiment of the present application, and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications are also considered as the protection scope of the present application.

Claims

1. A card seat assembly applied to an electronic device is characterized by comprising:

a housing having a through hole;

the bearing plate is fixed in the shell;

the button assembly comprises a button, a top rod and a lever, the lever is rotatably connected to the bearing plate, and a first end of the lever abuts against the tray; one end of the ejector rod abuts against the second end of the lever along the sliding direction of the tray, and the ejector rod is locked with the tray; the key is abutted against the other end of the ejector rod; the ejector rod is provided with a first magnetic part, the tray is provided with a second magnetic part, and the first magnetic part and the second magnetic part are attracted to each other so that the ejector rod and the tray are locked; when the key is pressed, the first magnetic part of the ejector rod and the second magnetic part of the tray are staggered, and the ejector rod pushes the lever, so that the tray is ejected out of the shell under the action of the second end of the lever.

2. The cartridge assembly of claim 1, wherein the housing further comprises a receiving cavity, the bottom wall of the receiving cavity is provided with the through hole, and the baffle is located in the receiving cavity when the rod is locked to the tray.

3. The cartridge assembly of claim 2, wherein the key is disposed adjacent to the baffle and received in the receiving cavity.

4. The cartridge assembly of claim 2, wherein the housing further includes a key slot, the key slot being disposed adjacent the receiving slot, and the key being received in the key slot.

5. The card holder assembly of claim 2, wherein a limiting protrusion is protruded from a wall of the receiving groove, the limiting protrusion faces the key, and the limiting protrusion partially covers the key, so that the key is movable between the limiting protrusion and the bottom wall of the receiving groove.

6. The card socket assembly of claim 5, wherein the key assembly further comprises an extension spring elastically connected between the bottom wall of the receiving groove and the key, so that the key abuts against the limiting protrusion under the elastic force of the extension spring.

7. The cartridge assembly of any one of claims 1 to 6, wherein one end of the ram is fixedly connected to the second end of the lever.

8. The cartridge assembly of any one of claims 1 to 6, wherein the second end of the lever has a first face and a second face that abut, the first face abutting an end of the post and the second face facing a sidewall of the post.

9. The card holder assembly of claim 8, wherein the first surface of the lever is further provided with a positioning protrusion, the positioning protrusion and the second surface form an embedding groove, and one end of the push rod is embedded in the embedding groove.

10. The cartridge assembly of any one of claims 1 to 6, wherein a torque between the first end of the lever and the rotational axis of the lever is greater than a torque between the second end of the lever and the rotational axis of the lever.

11. The cartridge assembly according to any one of claims 1 to 6, wherein the push button has a pressing portion and an abutting portion connected in sequence, and the abutting portion is snap-connected to the other end of the plunger.

12. The cartridge assembly of any one of claims 1 to 6, further comprising a cover body covering the carrier plate to form an accommodating space, the accommodating space communicating with the through hole to allow the tray to be located in the accommodating space.

13. An electronic device comprising the card holder assembly of any one of claims 1 to 12.