Electronic card connector

Abstract

The invention discloses an electronic card connector which comprises an insulating base, a plurality of first conductive terminals, a plurality of second conductive terminals and a pair of balance terminals. The balance terminal is fixed on the side wall of the insulating base; and the elastic pressurizing arm of the balance terminal is used for clamping the side edge of the electronic card when the electronic card is inserted into the accommodating space and is in contact with the first elastic arm of the first conductive terminal. The sliding part of the balance terminal is used for sliding along the side wall when the elastic pressurizing arm clamps the electronic card and the electronic card continues to be inserted. And the sliding part is used for entering the notch of the side wall when the electronic card is in contact with the second elastic arm of the second conductive terminal so as to release at least one part of the clamping force.

Description

Technical Field

[0001] The invention relates to the technical field of connectors, and in particular to an electronic card connector capable of providing smooth insertion of an electronic card. Background Art

[0002] When designing traditional electronic card connectors, the problem of damage to the electronic card due to oblique insertion is usually considered, but the problem of poor user experience due to uneven force during the electronic card insertion process is rarely considered.

[0003] For example, Chinese patent announcement No. CN2932674Y discloses an electronic card connector for inserting an electronic card, which includes: an insulating body, a plurality of conductive terminals received in the insulating body, a card locking spring, a support sheet for guiding the insertion of the electronic card, and a shielding shell buckled on the insulating body, wherein the insulating body is provided with a receiving slot for receiving the electronic card; the support sheet includes a base portion fixed in the insulating body and a pair of elastic arms extending into the receiving slot. The support sheet can guide the electronic card to be inserted in the correct direction, thereby solving the problem of oblique insertion of the electronic card.

[0004] However, the above electronic card connector does not pay attention to the change of the insertion force of the electronic card. The support sheet in the above structure will cause the initial insertion force and the intermediate insertion force of the electronic card to change. Specifically, in the initial stage of inserting the electronic card, the electronic card just contacts the support sheet, and its initial insertion force is small; while in the middle stage of inserting the electronic card, the electronic card contacts the conductive terminal, and its intermediate insertion force increases.

[0005] The problem of changes in the insertion force of the electronic card is particularly reflected in the electronic card connector with double rows of conductive terminals. Specifically, in the electronic card connector with double rows of conductive terminals, in the initial stage of inserting the electronic card, the electronic card only forms contact with the first row of conductive terminals, and its insertion force is relatively small; in the middle stage of inserting the electronic card, because the electronic card contacts the second row of conductive terminals while maintaining contact with the first row of conductive terminals, its insertion force increases sharply. This unbalanced or uneven insertion force will lead to a poor user experience, and the user may even be afraid to continue inserting the electronic card into the connector, thereby affecting the normal use of the electronic card and the electronic card connector.

[0006] Therefore, there is an urgent need to provide a new electronic card connector to solve the problem of poor user experience caused by uneven insertion force during the electronic card insertion process. Summary of the invention

[0007] The main purpose of the present invention is to provide an electronic card connector, which can ensure that the insertion force of the electronic card is uniform and the insertion is smooth during the entire insertion stage, improve the quality of the electronic card connector, and enhance the user's card insertion experience.

[0008] Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

[0009] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: The present invention provides an electronic card connector, comprising: an insulating base, a plurality of first conductive terminals arranged in a first row, a plurality of second conductive terminals arranged in a second row, and a pair of balanced terminals. The insulating base has a bottom wall, two side walls arranged on the bottom wall, a storage space and a card insertion port defined by the bottom wall and the side walls; wherein the side wall is provided with a sliding surface facing the storage space, and the side wall forms a notch at a position away from the card insertion port. Each of the first conductive terminals is fixed in the bottom wall and has a first elastic arm, the first elastic arm is close to the card insertion port, and at least a portion of the first elastic arm extends into the storage space. Each of the second conductive terminals is fixed in the bottom wall and has a second elastic arm, the second elastic arm is away from the card insertion port, and at least a portion of the second elastic arm extends into the storage space. The balanced terminal is fixed on the side wall, and comprises a fixed end, an elastic pressure arm and a sliding portion arranged in sequence; wherein the fixed end is close to the card insertion port; the elastic pressure arm extends along the side wall and at least a portion of the second elastic arm extends into the storage space. The elastic pressure arm is used to clamp the side of the electronic card and apply a clamping force to the electronic card when the electronic card is inserted into the accommodation space and contacts the first elastic arm. The sliding portion is used to slide along the sliding surface when the elastic pressure arm clamps the electronic card and the electronic card continues to be inserted. The sliding portion is used to enter the notch when the electronic card contacts the second elastic arm, so that the elastic pressure arm releases at least a part of the clamping force on the electronic card.

[0010] In one embodiment, the notch is adjacent to the slip surface, and the slip surface includes an arc surface close to the notch.

[0011] In one embodiment, the side wall has a proximal position close to the card insertion port, a middle position, and an end position away from the card insertion port; the notch is arranged at the end position, or between the middle position and the end position.

[0012] In one embodiment, the first conductive terminals in the first row are arranged in parallel with the second conductive terminals in the second row, and the first elastic arms and the second elastic arms are also arranged in two parallel rows.

[0013] In one embodiment, the first conductive terminal also has a first fixing portion and a first tail portion; the first fixing portion is U-shaped, and is used to fix the first conductive terminal in the first terminal fixing groove of the bottom wall; the first tail portion is bent vertically downward from one end of the first fixing portion, and extends out of the bottom surface of the bottom wall; the first elastic arm is a barbed hook structure formed by bending upward in a U shape from the other end of the first fixing portion, and the barbed hook structure has a first contact portion protruding toward the accommodating space, which is used to form an electrical connection with the electronic card.

[0014] In one embodiment, the first conductive terminal also has a second fixing portion and a second tail portion; the second fixing portion is linear and is used to fix the second conductive terminal in the second terminal fixing groove of the bottom wall; the second tail portion is vertically bent downward from one end of the second fixing portion and extends out of the bottom surface of the bottom wall; the second elastic arm is an inverted V-shaped structure formed by a U-shaped upward bend from the other end of the second fixing portion, and the inverted V-shaped structure has a second contact portion protruding toward the accommodating space, which is used to form an electrical connection with the electronic card.

[0015] In one embodiment, the fixed end of the balancing terminal is fixed to the third terminal fixing groove of the side wall; the elastic pressure arm is L-shaped; and the sliding portion is a protrusion facing the sliding surface.

[0016] In one embodiment, the insulating base further includes a retaining wall disposed on the bottom wall and perpendicular to the side wall, the retaining wall is disposed opposite to the card insertion port, and the accommodating space is defined by the bottom wall, the side wall and the retaining wall.

[0017] In one embodiment, the electronic card connector also includes a supporting seat, a card ejection mechanism and a shell; the terminal module is fixed to the supporting seat; the supporting seat has a top wall, which is located above the accommodating space and is used to define the accommodating space; the card ejection mechanism is installed to the supporting seat, and the card ejection mechanism includes at least a push rod and an elastic member, one end of the push rod is connected to the elastic member, extends through the through hole of the retaining wall into the accommodating space, and faces the front edge of the electronic card, and the other end of the push rod extends out of the supporting seat; the shell is used to cover the supporting seat.

[0018] Compared with the prior art, the electronic card connector of the present invention can apply the clamping force to the electronic card in the first stage of the electronic card insertion by setting a balancing terminal, and unload the clamping force in the second stage of the electronic card insertion. In this way, the insertion force will not increase sharply due to the electronic card contacting the second elastic arm, thereby ensuring that the insertion force of the electronic card is uniform and the insertion is smooth during the entire insertion stage, thereby improving the user's card insertion experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the terminal module of the electronic card connector of the present invention.

[0020] Figure 2 for Figure 1 The disassembled view of the terminal module is shown.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the terminal module of the electronic card connector of the present invention along another direction.

[0022] Figure 4 for Figure 3 The disassembled view of the terminal module is shown.

[0023] Figure 5 It is a plan view of the terminal module of the present invention, which mainly shows the position of the balance terminal before the electronic card is inserted.

[0024] Figure 6 It is a plan view of the terminal module of the present invention, wherein the electronic card is in a first insertion stage.

[0025] Figure 7 It is a plan view of the terminal module of the present invention, wherein the electronic card is in the second insertion stage.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the electronic card connector of the present invention.

[0027] Fig. 9 for Figure 8 An exploded view of the electronic card connector is shown.

[0028] Fig.10 for Figure 8 The cross-sectional structure diagram of the electronic card connector is shown.

[0029] The reference numerals in the above drawings are described as follows:

[0030] Electronic card connector 1 Insulation base 10

[0031] Bottom wall 11 First terminal fixing groove 110

[0032] Second terminal fixing groove 111 Side wall 12

[0033] Slip surface 120 Notch 121

[0034] Curved surface 122 Vertical plane 123

[0035] The third terminal fixing groove 124 contains the space 13

[0036] Card slot 14 Retaining wall 15

[0037] Through hole 150 First conductive terminal 20

[0038] First elastic arm 21 First contact portion 210

[0039] First fixing portion 22 First tail portion 23

[0040] Second conductive terminal 30 Second elastic arm 31

[0041] The second contact portion 310 and the second fixing portion 32

[0042] Second tail 33 Balance terminal 40

[0043] Fixed end 41 Elastic pressure arm 42

[0044] Sliding portion 43 Free end 44

[0045] Terminal module 50 Support seat 60

[0046] Top wall 61 Card ejection mechanism 70

[0047] Push rod 71 Elastic member 72

[0048] Housing 80 Electronic card 9

[0049] Front edge 91 Side edge 92 DETAILED DESCRIPTION

[0050] The following embodiments are described with reference to the attached drawings to illustrate specific embodiments of the present invention. Directional terms mentioned in the present invention, such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but are not used to limit the present invention.

[0051] Please refer to Figures 1 to 4 As shown, the electronic card connector 1 of the present invention is used to connect an electronic card to a circuit board. The electronic card connector 1 includes an insulating base 10, a plurality of first conductive terminals 20 arranged in a first row, a plurality of second conductive terminals 30 arranged in a second row, and a pair of balanced terminals 40. In one embodiment, the insulating base 10, the first conductive terminals 20, the second conductive terminals 30 and the balanced terminals 40 together constitute a terminal module 50, and the terminal module 50 is connected to other components of the electronic card connector 1, and the other components will be described in detail later.

[0052] like Figure 2 , Figure 4As shown, the insulating base 10 has a bottom wall 11, two side walls 12 arranged opposite to the bottom wall 11, a receiving space 13 and a card insertion port 14 defined by the bottom wall 11 and the side walls 12; wherein the side wall 12 is provided with a sliding surface 120 facing the receiving space 13, and the side wall 12 forms a notch 121 at a position away from the card insertion port 14.

[0053] In one embodiment, if Figure 2 , Figure 4 As shown, the notch 121 is adjacent to the slip surface 120. The slip surface 120 includes an arc surface 122 close to the notch 121 and a vertical plane 123 connected to the arc surface 122.

[0054] In one embodiment, if Figure 2 , Figure 4 As shown, the insulating base 10 further includes a retaining wall 15 disposed on the bottom wall 11 and perpendicular to the side wall 12, and the accommodating space 13 is defined by the bottom wall 11, the side wall 12 and the retaining wall 15. The card insertion port 14 is disposed opposite to the retaining wall 15.

[0055] In one embodiment, if Figure 2 , Figure 4 As shown, the side wall 12 has a proximal position close to the card insertion port 14, a middle position, and a terminal position away from the card insertion port 14. The notch 121 is provided at the terminal position of the side wall 12. Figure 2 However, in other embodiments, the notch 121 may also be disposed between the middle position and the end position. That is, in specific design, the position of the notch 121 in the present invention may be appropriately adjusted according to the actual product structure and size.

[0056] In addition, in one embodiment, if Figure 2 , Figure 4 As shown, a row of first terminal fixing grooves 110 and a row of second terminal fixing grooves 111 are provided on the bottom wall 11, respectively used to fix the first conductive terminal 20 and the second conductive terminal 30. A third terminal fixing groove 124 is provided on the side wall 12, used to fix the balancing terminal 40. Specifically, the third terminal fixing groove 124 is provided at the proximal position of the side wall 12.

[0057] like Figure 1 , Figure 3 As shown, the first row of first conductive terminals 20 and the second row of second conductive terminals 30 are arranged in parallel in the bottom wall 11 , and the first row of first conductive terminals 20 are closer to the card insertion port 14 than the second row of second conductive terminals 30 .

[0058] like Figure 1 , Figure 3 As shown, each of the first conductive terminals 20 is fixed in the bottom wall 11 and has a first elastic arm 21, the first elastic arm 21 is close to the card insertion port 14, and at least a portion of the first elastic arm 21 extends into the accommodating space 13; similarly, each of the second conductive terminals 30 is fixed in the bottom wall 11 and has a second elastic arm 31, the second elastic arm 31 is away from the card insertion port 14, and at least a portion of the second elastic arm 31 extends into the accommodating space 13.

[0059] like Figure 2 , Figure 4 As shown, the first conductive terminal 20 also has a first fixing portion 22 and a first tail portion 23. The first fixing portion 22 is U-shaped and is used to fix the first conductive terminal 20 in the first terminal fixing groove 110. The first tail portion 23 is vertically bent downward from one end of the first fixing portion 22 and extends out of the bottom surface of the bottom wall 11, and is used to connect the first conductive terminal 20 to the circuit board. The first elastic arm 21 is a barbed hook structure, which is formed by bending upward in a U-shape from the other end of the first fixing portion 22, and most of the barbed hook structure is exposed to the accommodating space 13. The barbed hook structure has a first contact portion 210 protruding toward the accommodating space 13. The first elastic arm 21 is used to provide elastic contact force for the electronic card, and the first contact portion 210 is used to form an electrical connection with the electronic card.

[0060] like Figure 2 , Figure 4 As shown, the second conductive terminal 30 also has a second fixing portion 32 and a second tail portion 33. The second fixing portion 32 is linear and is used to fix the second conductive terminal 30 in the second terminal fixing groove 111. The second tail portion 33 is vertically bent downward from one end of the second fixing portion 32 and extends out of the bottom surface of the bottom wall 11 to connect the second conductive terminal 30 to the circuit board. The second elastic arm 31 is an inverted V-shaped structure, which is formed by bending upward in a U-shape from the other end of the second fixing portion 32, and most of the inverted V-shaped structure is exposed to the accommodating space 13. The inverted V-shaped structure has a second contact portion 310 protruding toward the accommodating space 13. The second elastic arm 31 is used to provide elastic contact force for the electronic card, and the second contact portion 310 is used to form an electrical connection with the electronic card.

[0061] In one embodiment, the first elastic arm 21 and the second elastic arm 31 are arranged in two parallel rows, and the first elastic arm 21 is closer to the card insertion port 14. The first tail portion 23 and the second tail portion 33 are arranged opposite to each other, the first tail portion 23 is close to the card insertion port 14, and the second tail portion 33 is close to the retaining wall 15.

[0062] like Figure 1 , Figure 3 As shown, the balancing terminal 40 is fixed on the side wall 12 .

[0063] like Figure 2 , Figure 4 As shown, the balancing terminal 40 includes a fixed end 41, an elastic pressure arm 42 and a sliding portion 43 which are arranged in sequence. The fixed end 41 is close to the card insertion port 14 and is fixed to the third terminal fixing groove 124.

[0064] Figure 1 , Figure 3 and Figure 7 FIG. 4 shows the deformation state of the elastic pressure arm 42 after the electronic card is fully inserted into the receiving space 13. Figure 5 FIG. 4 shows the original state of the elastic pressure arm 42 when the electronic card is not inserted into the accommodation space 13. Figure 5 As shown, when the electronic card is not inserted into the accommodation space 13, the elastic pressure arm 42 bends and extends along the side wall 12 and at least a portion thereof extends into the accommodation space 13. In one embodiment, the elastic pressure arm 42 is L-shaped. The sliding portion 43 is a protrusion toward the sliding surface 120, such as an arc protrusion, which can smoothly slide along the sliding surface 120 to the notch 121 under the action of an external force, as shown in FIG. Figure 1 , Figure 3 and Figure 7 In one embodiment, the balancing terminal 40 further has a free end 44 , the free end 44 is away from the card insertion port 14 and faces the retaining wall 15 ; the sliding portion 43 is close to the free end 44 .

[0065] The elastic pressure arm 42 is used to clamp the side of the electronic card and apply a clamping force to the electronic card when the electronic card is inserted into the accommodating space 13 and contacts the first elastic arm 21 .

[0066] The sliding portion 43 is used to slide along the sliding surface 120 when the elastic pressure arm 42 clamps the electronic card and the electronic card continues to be inserted.

[0067] The sliding portion 43 is used to enter the notch 121 when the electronic card contacts the second elastic arm 31 , so that the elastic pressure arm 42 releases at least a part of the clamping force on the electronic card.

[0068] The electronic card connector 1 of the present invention can ensure that the insertion force of the electronic card is uniform and the insertion is smooth during the entire insertion stage by providing the balancing terminal 40, thereby improving the quality of the electronic card connector 1 and enhancing the user's card insertion experience.

[0069] The following will be combined Figure 5 , Figure 6 and Figure 7 The card insertion process and working principle of the electronic card connector 1 of the present invention are described in detail.

[0070] like Figure 5 As shown, when the electronic card 9 is not inserted into the receiving space 13 of the electronic card connector 1, at least a portion of the elastic pressure arm 42 of the balance terminal 40 extends into the receiving space 13, and the sliding portion 43 may or may not abut against the sliding surface 120. Figure 5 In the illustrated embodiment, the sliding portion 43 abuts against the sliding surface 120 .

[0071] like Figure 6 As shown, in the first stage of inserting the electronic card 9 into the accommodating space 13 of the electronic card connector 1, the front edge 91 of the electronic card 9 just contacts the first elastic arm 21 of the first conductive terminal 20, and the side edge 92 of the electronic card 9 contacts the elastic pressure arm 42, thereby being clamped by the elastic pressure arm 42. At this time, the electronic card 9 will encounter two kinds of resistance when it continues to be inserted. The first resistance is the friction resistance applied by the first elastic arm 21 to the electronic card 9; the second resistance is the resistance generated by the clamping force applied by the elastic pressure arm 42 to the electronic card 9. At this time, the user will feel the combined force of the first resistance and the second resistance.

[0072] In the first stage, as the electronic card 9 continues to be inserted, its front edge will slide over the first elastic arm 21, and the balance terminal 40 will be forced to open outward. At this time, the bottom of the electronic card 9 is in electrical contact with the first contact portion 210. Although the friction resistance (i.e., the first resistance) will be slightly reduced, the sliding portion 43 will slide along the sliding surface 120, so the clamping force received by the side 92 of the electronic card 9 will increase slightly, resulting in a slight increase in the second resistance. At this time, the resultant force perceived by the user is roughly unchanged, so the insertion force is basically unchanged.

[0073] like Figure 7As shown, in the second stage of the electronic card 9 being inserted into the accommodation space 13 of the electronic card connector 1, the front edge 91 of the electronic card 9 just contacts the second elastic arm 31 of the second conductive terminal 30, and the sliding portion 43 will enter the notch 121 from the sliding surface 120. At this time, the electronic card 9 continues to be inserted, and will not only be subject to the friction resistance (i.e., the first resistance) applied by the first elastic arm 21 to the electronic card 9, but also to the friction resistance (which can be called the third resistance) applied by the second elastic arm 31 to the electronic card 9. However, since the sliding portion 43 enters the notch 121, the clamping force applied by the elastic pressure arm 42 to the side 92 of the electronic card 9 will be sharply reduced, thereby causing the second resistance to be sharply reduced. Therefore, the newly added third resistance and the sharply reduced second resistance will make the resultant force perceived by the user roughly unchanged, so that the insertion force will also be basically unchanged.

[0074] To sum up, the electronic card connector 1 of the present invention can apply the clamping force to the electronic card in the first stage of the electronic card insertion by setting the balancing terminal 40, and unload the clamping force in the second stage of the electronic card insertion. In this way, the insertion force will not increase sharply due to the electronic card contacting the second elastic arm 31, thereby ensuring that the insertion force of the electronic card is uniform and the insertion is smooth during the entire insertion stage, thereby improving the user's card insertion experience.

[0075] Please refer to Figure 8 , Fig. 9 and Fig.10 As mentioned above, the electronic card connector 1 of the present invention further includes a bearing seat 60 , a card ejection mechanism 70 and a housing 80 .

[0076] The terminal module 50 is fixed to the supporting base 60. The supporting base 60 has a top wall 61, which is located above the receiving space 13 and is used to define the receiving space 13 and can serve as the top of the receiving space 13.

[0077] The card ejection mechanism 70 is mounted on the bearing seat 60, and the card ejection mechanism 70 at least comprises a push rod 71 and an elastic member 72, wherein the push rod 71 is connected to the elastic member 72 and passes through a through hole 150 (see reference numerals) of the retaining wall 15. Figure 1 and Fig. 9 ) protrudes into the accommodating space 13 and faces the front edge 91 of the electronic card 9, and the other end of the push rod 71 extends out of the supporting seat 60.

[0078] The housing 80 is used to cover the supporting base 60 to fix or protect internal components.

Claims

1. An electronic card connector, characterized in that: include: An insulating base, a plurality of first conductive terminals arranged in a first row, a plurality of second conductive terminals arranged in a second row, and a pair of balancing terminals; The insulating base comprises a bottom wall, two side walls arranged opposite to the bottom wall, a receiving space and a card insertion port defined by the bottom wall and the side walls; wherein the side wall is provided with a sliding surface facing the receiving space, and the side wall forms a notch at a position away from the card insertion port; Each of the first conductive terminals is fixed in the bottom wall and has a first elastic arm, the first elastic arm is close to the card insertion port, and at least a portion of the first elastic arm extends into the accommodation space; Each of the second conductive terminals is fixed in the bottom wall and has a second elastic arm, the second elastic arm is away from the card insertion port, and at least a portion of the second elastic arm extends into the accommodation space; The balancing terminal is fixed on the side wall, and comprises a fixed end, an elastic pressure arm and a sliding portion arranged in sequence; wherein the fixed end is close to the card insertion port; the elastic pressure arm is bent and extended along the side wall and at least a part thereof extends into the accommodation space; Wherein, the elastic pressure arm is used to clamp the side of the electronic card and apply a clamping force to the electronic card when the electronic card is inserted into the accommodating space and contacts the first elastic arm; Wherein, the sliding portion is used to slide along the sliding surface when the elastic pressure arm clamps the electronic card and the electronic card continues to be inserted; The sliding portion is used to enter the notch when the electronic card contacts the second elastic arm, so that the elastic pressure arm releases at least a part of the clamping force on the electronic card.

2. The electronic card connector according to claim 1, wherein: The notch is adjacent to the slip surface, and the slip surface includes an arc surface close to the notch.

3. The electronic card connector according to claim 2, wherein: The side wall has a proximal position close to the card insertion port, a middle position, and a terminal position away from the card insertion port; The notch is arranged at the end position, or between the middle position and the end position.

4. The electronic card connector according to claim 1, wherein: The first conductive terminals in the first row are arranged in parallel with the second conductive terminals in the second row, and the first elastic arms and the second elastic arms are also arranged in two parallel rows.

5. The electronic card connector according to claim 4, characterized in that: The first conductive terminal also has a first fixing portion and a first tail portion; The first fixing portion is U-shaped and is used to fix the first conductive terminal in the first terminal fixing groove of the bottom wall; The first tail portion is bent vertically downward from one end of the first fixing portion and extends out of the bottom surface of the bottom wall; The first elastic arm is a hook-shaped structure formed by bending upward in a U-shape from the other end of the first fixing portion. The hook-shaped structure has a first contact portion protruding toward the accommodation space for forming an electrical connection with the electronic card.

6. The electronic card connector according to claim 4, wherein: The first conductive terminal also has a second fixing portion and a second tail portion; The second fixing portion is linear and is used to fix the second conductive terminal in the second terminal fixing groove of the bottom wall; The second tail portion is bent vertically downward from one end of the second fixing portion and extends out of the bottom surface of the bottom wall; The second elastic arm is an inverted V-shaped structure formed by bending upward in a U-shape from the other end of the second fixing portion. The inverted V-shaped structure has a second contact portion protruding toward the accommodating space for forming an electrical connection with the electronic card.

7. The electronic card connector according to claim 1, wherein: The fixed end of the balancing terminal is fixed to the third terminal fixing groove of the side wall; The elastic pressure arm is L-shaped; The sliding portion is a protrusion facing the sliding surface.

8. The electronic card connector according to claim 1, wherein: The insulating base further includes a retaining wall disposed on the bottom wall and perpendicular to the side wall, the retaining wall being disposed opposite to the card insertion port, and the accommodating space being defined by the bottom wall, the side wall and the retaining wall.

9. The electronic card connector according to claim 1, wherein: It also includes a bearing seat, a card ejection mechanism and a housing; The terminal module is fixed to the bearing seat; the bearing seat has a top wall located above the accommodating space to define the accommodating space; The card ejection mechanism is mounted on the bearing seat, and the card ejection mechanism at least comprises a push rod and an elastic member, one end of the push rod is connected to the elastic member, passes through the through hole of the retaining wall and extends into the accommodating space, and faces the front edge of the electronic card, and the other end of the push rod extends out of the bearing seat; The shell is used to cover the bearing seat.

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