Card Connectors

Abstract

A card connector comprises a terminal module and a card ejection module matched with the terminal module, the terminal module comprises a terminal assembly and a metal shell matched with the terminal assembly, the terminal assembly comprises an insulator and a plurality of conductive terminals fixed to the insulator, the terminal module is provided with a receiving space and forms an insertion interface, the insertion interface is for inserting an electronic card, the receiving space is used to accommodate the electronic card, the card ejection module is located at the insertion interface position of the terminal module, so as to prevent a card ejection rod from being mistakenly inserted between a card tray and the terminal assembly, and the card ejection action is smooth.

Description

Technical Field

[0001] This design is about a card connector. Background Art

[0002] Mobile phones are one of the indispensable tools for people's lives in modern society. As people deal with more affairs, the functional requirements of mobile phones are getting higher and higher. A card connector is an electrical connector used to be installed on the circuit board of portable electronic devices such as mobile phones, which can realize signal transmission between electronic cards and portable electronic devices such as mobile phones. A card connector is generally provided with a card holder body, a card tray, a card ejection mechanism and a detection terminal module. The card tray is used to carry the electronic card and insert it into the card holder body, and the card ejection mechanism allows the card holder to exit the card holder body. The card ejection mechanism of the card connector generally includes a rotating shaft, a push rod and an actuator. The actuator is pivotally connected to the rear end of the card holder body through the rotating shaft, and the push rod is arranged on the side of the card holder body and linked with the actuator. The detection terminal module of the card connector is generally arranged at the rear end of the card holder body. In the prior art, when the card holder is ejected or inserted, the actuator will be inserted under the card holder, that is, the actuator is clamped by the card holder and the card holder body from top to bottom, which will damage the card holder body and the card holder.

[0003] Therefore, it is necessary to provide a new card connector to solve the above technical problems. Summary of the invention

[0004] The purpose of this design is to provide a new card connector with smooth card ejection action.

[0005] The purpose of this design is achieved through the following technical solutions:

[0006] A card connector comprises a terminal module and a card ejection module matched with the terminal module, the terminal module comprises a terminal assembly and a metal shell matched with the terminal assembly, the terminal assembly comprises an insulator and a plurality of conductive terminals fixed to the insulator, the terminal module is provided with a receiving space and forms an insertion interface, the insertion interface is for inserting an electronic card, the receiving space is used to receive the electronic card, and the card ejection module is located at the insertion interface position of the terminal module.

[0007] Furthermore, the card ejection module includes a metal frame and a card ejection rod, the card ejection rod is pivotally connected to the metal frame, and when one end of the card ejection rod is pushed forward, the card ejection rod can rotate with the pivot position with the metal frame as the rotation axis, and the other end of the card ejection rod moves backward.

[0008] Furthermore, the metal frame includes a top plate and a bottom plate opposite to the top plate, and the card ejection rod is pivotally connected between the top plate and the bottom plate.

[0009] Furthermore, the rear end position of the metal frame forms a rear end plate, the front end position of the metal frame forms a front end plate, the card ejection rod is located between the rear end plate and the front end plate, and the rear end plate forms respective clearance openings at the two end positions of the card ejection rod in the front-to-back direction, and when the card ejection rod rotates, the two ends of the card ejection rod can protrude backwards from the clearance openings respectively.

[0010] Furthermore, the metal frame includes an upper shell and a lower shell, the upper shell forms the top plate, the lower shell forms the bottom plate, the rear end plate is formed by extending from the rear end position of the upper shell or the lower shell, and the front end plate is formed by extending from the front end position of the upper shell or the lower shell.

[0011] Furthermore, the upper shell and the lower shell are fixed to each other at both ends in the left-right direction and / or the upper shell and the lower shell are fixed to each other at the front end, the upper shell or the lower shell is fixed to the metal shell, or the upper shell or the lower shell is integrated with the metal shell.

[0012] Furthermore, the metal frame and the metal shell have their plug-in interfaces fixed to or integrated with each other.

[0013] Furthermore, it also includes a circuit board, the terminal module is fixed on the surface of the circuit board, the circuit board is recessed downward at the plug-in interface position of the terminal module to form a clearance space, the card ejection module is accommodated in the clearance space and fixed to the circuit board, or the card ejection module is accommodated in the clearance space and fixed to the metal shell, or the card ejection module is accommodated in the clearance space and is integrated with the metal shell.

[0014] Furthermore, welding pieces are formed on both sides of the metal frame along the card insertion direction, and a welding piece is formed on the front end of the metal frame along the card insertion direction, and the welding piece is directly or indirectly fixed to the surface of the circuit board.

[0015] Furthermore, it also includes a card tray, which is used to carry at least one electronic card. The card tray is inserted into the accommodating space through the insertion interface. The lower surface of the card tray at the rear end position along the card insertion direction is protruded to form a card ejection portion, and the card ejection portion is formed with a card ejection surface facing the card insertion direction, and the card ejection surface cooperates with the card ejection rod. The lower surface of the card ejection portion is lower than the upper surface of the metal frame. The card connector also includes a switch terminal module, and the switch terminal module includes a movable terminal, a fixed terminal that cooperates with the movable terminal for movement, and an insulating block. The movable terminal is formed by bending the metal frame, the fixed terminal is fixed to the insulating block, and the insulating block is fixed to the metal frame. The movable terminal is formed with a trigger portion at the rear end position along the card insertion direction, and the trigger portion cooperates with the card ejection surface.

[0016] Compared with the prior art, this design has the following beneficial effects: the card ejection module is arranged at the insertion interface of the terminal module to prevent the card ejection rod from being mistakenly inserted between the card tray and the terminal assembly, and the card ejection action is smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the card connector of this application.

[0018] Figure 2 It is a partial exploded view of the card connector of the present application, which shows a three-dimensional schematic diagram of the card tray and the electronic card when they are removed from the terminal module.

[0019] Figure 3 yes Figure 2 Enlarged view of the part within the dotted circle.

[0020] Figure 4 It is a three-dimensional exploded view of the card ejection module of the present application, which specifically shows a three-dimensional schematic diagram of the upper shell, the card ejection rod and the lower shell when they are separated from each other, and of course also shows the shape of the switch terminal.

[0021] Figure 5 This is a positional relationship diagram between the card tray in the card connector of this application and the card ejection module after being inserted into the terminal module. It is shown from a top-down angle. For the sake of clear display, the metal shell, electronic card and terminal assembly are removed.

[0022] Figure 6 yes Figure 5 Enlarged view of the part within the dashed box.

[0023] Figure 7 It is a three-dimensional schematic diagram of the card ejection lever of the card connector of the present application pushing the card tray backward to eject the electronic module.

[0024] Figure 8 yes Figure 7 Enlarged view of the part within the dashed box.

[0025] Fig. 9 yes Figure 1 In the cross-sectional view taken along line AA, only the part where the plug-in interface is located is enlarged for clear display, mainly showing the relative position relationship between the card ejection module, circuit board, and card tray. DETAILED DESCRIPTION

[0026] The following will be combined Figures 1 to 9 The specific implementation of the card connector of this design is introduced. It should be noted that the embodiments and features in the embodiments of this design can be combined with each other without conflict.

[0027] In the description of this design, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this design can be understood according to specific circumstances.

[0028] In the description of the present design, it should be understood that the terms "including" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products or apparatuses.

[0029] In order to make the description in this application more accurate, all directions should be referred to as Figure 1 For reference, the X-axis extends in the left-right direction, and the positive direction of the X-axis is right; the Y-axis extends in the front-back direction, and the positive direction of the Y-axis is front; the Z-axis extends in the up-down direction, and the positive direction of the Z-axis is up.

[0030] Please refer to Figures 1 to 9 As shown, the present application discloses a card connector, including a terminal module 1, a circuit board 5, a card ejection module 3 and a card tray 3 that cooperate with the terminal module 1. The terminal module 1 includes a terminal assembly 12 (see Fig. 9 ) and a metal shell 11 that cooperates with the terminal assembly 12. The terminal assembly 12 includes an insulator (not shown) and a plurality of conductive terminals (not shown) fixed to the insulator. The metal shell 11 is covered above the periphery of the terminal assembly 12, and the terminal module 1 is welded and fixed to the surface of the circuit board 5. The terminal module 1 is defined by the terminal assembly 12 and the metal shell 11 to form a receiving space 10 and a plug-in interface 101 is formed at the rear end. The plug-in interface 101 is for inserting the card tray 2 carrying the electronic card 4, and the receiving space 10 is used to accommodate the card tray 2 carrying the electronic card 4.

[0031] In the present application, the card tray 2 is a three-in-one card tray 2, which can carry three electronic cards 4 at the same time, namely a T-flash card (Micro SD card) and two Nano Sim cards. Of course, it can be any other card tray form.

[0032] In the present application, the terminal assembly 12 is in the form of a tofu block, that is, the insulator and the conductive terminal are integrally formed to form a separate terminal assembly 12, and the terminal assembly 12 is independently welded and fixed to the surface of the circuit board 5. The metal shell 11 is covered above the terminal assembly 12, and the side panels (not marked) are formed on both sides and the front end of the metal shell 11 and are welded and fixed to the surface of the circuit board 5. Of course, in other embodiments, the terminal assembly 12 can also be designed to be integrated with the lower surface of the metal shell 11, and the side panels (not marked) formed on both sides and the front end of the metal shell 11 are welded and fixed to the surface of the circuit board 5. At this time, the accommodating space 10 is formed by the interval between the terminal assembly 12 and the surface of the circuit board 5. Of course, in other embodiments, the metal shell 11 can also be buckled with the insulator of the terminal assembly 12 to form a module and welded and fixed to the surface of the circuit board 5. In the present application, there are no excessive restrictions on the form of the terminal module 1.

[0033] Please refer to Figures 2 to 4 As shown, the card ejection module 3 is located at the insertion interface 101 of the terminal module 1, and the card ejection module 3 includes a metal frame 31 and a card ejection rod 32. The card ejection rod 32 is pivotally connected to the metal frame 31. When one end of the card ejection rod 32 is pushed backward, the card ejection rod 32 can rotate with the pivot position with the metal frame 31 as the rotation axis, and the other end of the card ejection rod 32 moves forward.

[0034] The metal frame 31 includes a top plate 3111 and a bottom plate 3121 opposite to the top plate 3111, and the card ejection rod 32 is pivotally connected between the top plate 3111 and the bottom plate 3121. The metal frame 3 includes an upper shell 311 and a lower shell 312. The upper shell 311 forms the top plate 3111, and the lower shell 312 forms the bottom plate 3121. In the present application, the rear edge of the upper shell 311 is bent toward the lower shell 312 to form the rear plate 3112, and the front edge of the lower shell 312 is bent toward the upper shell 311 to form the front plate 3122. The rear plate 3112 is welded and fixed to the lower shell 312, and the front plate 3122 is welded and fixed to the upper shell 311. The top plate 3111, the bottom plate 3121, the rear plate 3112 and the front plate 3122 together form a receiving cavity (not marked), and the card ejection rod 32 is pivotally connected and received in the receiving cavity.

[0035] Of course, in other embodiments, the rear end plate 3112 can also be formed by bending the front end edge of the upper shell 311 toward the lower shell 312, and the front end plate 3122 can also be formed by bending the rear end edge of the lower shell 312 toward the upper shell 311.

[0036] Please refer to Figure 3 Combination Figure 4As shown, in the present application, the card ejection rod 32 is arranged horizontally, and the rear end plate 3112 forms a clearance opening 3110 at the two end positions corresponding to the card ejection rod 32 in the front-to-back direction. When the card ejection rod 32 rotates, the two ends of the card ejection rod 32 can protrude backward from the clearance opening 3110 respectively.

[0037] In the present application, the circuit board 5 is recessed downward at the position of the plug interface 101 of the terminal module 1 to form a clearance space 51, and the card ejection module 3 is accommodated in the clearance space 51 and fixed to the circuit board 5. Specifically, welding pieces 301 are formed at both ends of the upper shell 311 and / or the lower shell 312 in the left-right direction, and welding pieces 302 are formed at the front end of the upper shell 311 and / or the lower shell 312, and the welding pieces 301, 302 are directly or indirectly fixed to the surface of the circuit board 5.

[0038] Of course, in other embodiments, the card ejection module 3 may also be designed to be fixed or integrated with the metal shell 11, specifically: the upper shell 311 and / or the lower shell 312 are fixed or integrated with the metal shell 11. When the upper shell 311, the lower shell 312 and the metal shell 11 are integrated, the rear end of the upper shell 311 may be bent downward and in the card insertion direction to form the lower shell 312, and the front end position or the left and right sides of the upper shell 311 may be integrated with the metal shell 11, or the front end position or the left and right sides of the lower shell 312 may be integrated with the metal shell 11. Similar variations are possible, and the principle is to form a housing cavity for accommodating the card ejection rod 32; at the same time, it is necessary to ensure that the card ejection module 3 is located at the front end position of the plug-in interface 101 of the terminal module, and the card ejection module 3 needs to be located below the card tray 2.

[0039] The card tray 2 is inserted forwardly into the accommodation space 10 through the insertion interface 101, and the lower surface of the rear end position of the card tray 2 protrudes to form a card ejection portion 21, and the card ejection portion 21 forms a card ejection surface 210 facing the front end direction, and the card ejection surface 210 cooperates with the card ejection rod 32. The card connector also includes a switch terminal module, and the switch terminal module includes a movable terminal 61, a fixed terminal 62 and an insulating block 63 that cooperate with the movable terminal 61 to realize the switch function. The movable terminal 61 is formed by bending the metal frame 31, and the fixed terminal 62 is fixed to the insulating block 63, and the insulating block 63 is fixed to the metal frame 31. In the present application, the movable terminal 61, the fixed terminal 62 and the insulating block 63 are all fixed in the accommodation cavity, and the rear end position of the movable terminal 61 is formed with a trigger portion 611 that protrudes backward out of the accommodation cavity, and the trigger portion 611 cooperates with the card ejection surface 210.

[0040] Please refer to Fig. 9 As described above, when the card tray 2 is fully inserted into the accommodating space 10 , the lower surface of the card ejection portion 21 is lower than the upper surface of the metal frame 31 . When the card tray 2 is over-inserted forward, the card ejection portion 21 can abut against the metal frame 31 to stop.

[0041] In the present application, the card ejection module 3 is arranged at the insertion interface 101 of the terminal module 1, and the metal frame 31 is designed with a receiving cavity, so that the card ejection rod 32 and the switch terminal can be well received therein, which plays a protective role, and the card ejection action is smooth and durable. The card ejection rod 32 is prevented from being inserted into the card tray 2 and the terminal assembly 12 by mistake.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present design, rather than to limit it. Although the present design has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solutions of the embodiments of the present design.

Claims

1. A card connector, comprising a terminal module and a card ejection module matched with the terminal module, the terminal module comprising a terminal assembly and a metal shell matched with the terminal assembly, the terminal assembly comprising an insulator and a plurality of conductive terminals fixed to the insulator, the terminal module is provided with a receiving space and forms an insertion interface, the insertion interface is for inserting an electronic card, the receiving space is used to receive the electronic card, and is characterized in that: The card ejection module is located at the plug-in interface of the terminal module; The card ejection module comprises a metal frame and a card ejection rod, the metal frame comprises an upper shell and a lower shell, and the upper shell and the lower shell are stacked and assembled and fixed in the up and down direction; The upper shell is provided with a top plate, the lower shell is provided with a bottom plate, and the top plate and the bottom plate are arranged opposite to each other in the up-down direction; A rear end plate, formed by extending from the rear end of the upper shell or the lower shell; A front end plate, formed by extending from the front end of the upper shell or the lower shell; An accommodating cavity is formed by the top plate, the bottom plate, the rear end plate and the front end plate, and the card ejection rod is pivotally connected and accommodated in the accommodating cavity; The rear end plate forms respective clearance openings at the positions of the two ends of the card ejection rod in the front-to-back direction, and when the card ejection rod rotates, the two ends of the card ejection rod can protrude backwards from the clearance openings respectively; The switch terminal module is fixed in the accommodating cavity and comprises a movable terminal, a fixed terminal matched with the movable terminal and an insulating block. A trigger portion protruding backward out of the accommodating cavity is formed at the rear end of the movable terminal.

2. The card connector according to claim 1, wherein: The card ejection rod is pivotally connected between the top plate and the bottom plate.

3. The card connector according to claim 1, wherein: The upper shell and the lower shell are fixed to each other at both ends in the left-right direction and / or the upper shell and the lower shell are fixed to each other at the front end.

4. The card connector according to claim 1, wherein: The upper shell or the lower shell is fixed to the metal shell, or the upper shell or the lower shell is integrated with the metal shell.

5. The card connector according to claim 1, wherein: The metal frame and the metal shell have their plug-in interfaces fixed to each other or integrated.

6. The card connector according to claim 1, wherein: It also includes a circuit board, the terminal module is fixed on the surface of the circuit board, the circuit board is recessed downward at the plug-in interface to form a clearance space, the card ejection module is accommodated in the clearance space and fixed to the circuit board, or the card ejection module is accommodated in the clearance space and fixed to the metal shell, or the card ejection module is accommodated in the clearance space and is integrated with the metal shell.

7. The card connector according to claim 1, wherein: The metal frame has welding pieces formed on both sides along the card insertion direction, and the front end of the metal frame has welding pieces formed along the card insertion direction. The welding pieces are directly or indirectly fixed to the surface of the circuit board.

8. The card connector according to claim 2, wherein: It also includes a card tray, which is used to carry at least one electronic card. The card tray is inserted into the accommodating space through the insertion interface. The lower surface of the card tray at the rear end position along the card insertion direction is protruded to form a card ejection portion, and the card ejection portion is formed with a card ejection surface facing the card insertion direction, and the card ejection surface cooperates with the card ejection rod.

9. The card connector according to claim 8, wherein: The lower surface of the card ejection portion is lower than the upper surface of the metal frame. When the card holder is over-inserted forward, the card ejection portion can abut against the rear end surface of the metal frame to achieve stop.

10. The card connector according to claim 9, wherein: The movable terminal is formed by bending a metal frame, the fixed terminal is fixed to an insulating block, the insulating block is fixed to the metal frame, and a trigger portion is formed at the rear end of the movable terminal along the card insertion direction, and the trigger portion cooperates with the card withdrawal surface.

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