Card edge connector

Abstract

The invention relates to a card edge connector which is used for plugging a first butt joint card board and a second butt joint card board. The card edge connector comprises a rubber core, a rear cover piece, a floating piece and a plurality of contact units. The rubber core comprises a first body, a first opening, a plurality of first containing grooves and a plurality of stopping pieces. The first body and the first containing grooves jointly define a first containing space. The rear cover piece is clamped to the rubber core, and the rear cover piece and the rubber core jointly define a second containing space. The floating piece is arranged in the second containing space in a floatable mode and comprises a second body, a second opening, a plurality of second containing grooves and at least one protruding part. The contact unit comprises a plurality of first contact pieces, a plurality of second contact pieces and a plurality of connecting pieces.

Description

Technical Field

[0001] This invention relates to a card edge connector, and more particularly to a card edge connector having a floating member with an adjustable opening position, and capable of inserting two mating plates according to different opening angles. Background Technology

[0002] Edge-mount connectors are widely used connectors in various electronic devices. Their main function is to insert different types of cards into corresponding slots, thereby expanding or enhancing the electronic devices and their functions. In recent years, with the continuous development of automotive technology, the application of edge-mount connectors in the vehicle field has become increasingly widespread. Modern automotive electronic systems require various types of circuit boards to achieve signal flow for functions such as vehicle information, audio-visual systems, navigation systems, vehicle diagnostics, and monitoring. Therefore, the design and structure of edge-mount connectors need continuous adjustment to cope with increasingly complex internal electronic systems and the limitations of automotive space.

[0003] Currently, a common type of edge connector is the horizontal mating connection between two cards. However, this horizontal connection method is limited by the connector environment, requiring constant adjustments to the insertion position to meet the needs of different situations. Furthermore, when cards need to be inserted in different directions, existing edge connectors require new molds, significantly increasing manufacturing costs and time, and making the production process complex and expensive.

[0004] In view of this, the present invention proposes a card edge connector to solve the problems of poor flexibility and high production cost faced by prior art card edge connectors. Summary of the Invention

[0005] The purpose of this invention is to provide a snap-edge connector comprising a core, a rear cover, and a floating component. Its main features are the design of the internal contact unit and the floating component, with the contact unit partially fixedly disposed within the core and the floating component. Since actual connector usage requires mating plates to have different insertion positions, only the orientation of the floating component and the area of ​​the contact unit used to interfere with the plate need to be changed according to the different insertion positions. Therefore, the snap-edge connector of this invention allows for minor adjustments to its local structure to accommodate the insertion position of the plate, increasing flexibility and reducing production costs and time.

[0006] To achieve the above objectives, the present invention discloses a snap-fit ​​connector for inserting a first mating plate and a second mating plate. The snap-fit ​​connector includes a core, a back cover, a floating member, and multiple contact units. The core includes a first body, a first opening, and multiple first receiving slots. The first opening is formed at one end of the first body, and the first receiving slots are arranged adjacently along a first direction at the other end of the first body, with the first body and the first receiving slots collectively defining a first receiving space. The back cover engages with the core, and the back cover and the core collectively define a second receiving space. The floating member is buoyantly disposed in the second receiving space. The floating member includes a second body, a second opening, and multiple second receiving slots. The second opening is formed along a second direction in the second body, and the second receiving slots are arranged adjacently along the first direction in the second body, with the second body and the second receiving slots collectively defining a third receiving space. The contact units are arranged adjacently along the first direction between the adhesive core and the rear cover. Each contact unit includes a plurality of first contacts, a plurality of second contacts, and a plurality of connectors. Each connector connects to each first contact and each second contact. The first contacts are disposed in the corresponding first receiving grooves, extending partially into the first receiving space, and the second contacts are disposed in the corresponding second receiving grooves, extending partially into the third receiving space. During electrical connection, the first mating plate is inserted into the first receiving space through the first opening along a third direction, and the second mating plate is inserted into the third receiving space through the second opening along a second direction. At this time, the first mating plate and the second mating plate form a first angle, and each first contact and each second contact form a second angle. The first direction is perpendicular to the third direction, and the second direction is determined by the first angle.

[0007] In one embodiment, each of the first contact members further includes a first fixing portion and a first contact portion, and each of the second contact members further includes a second fixing portion and a second contact portion. The first fixing portion is fixed to each of the first receiving grooves, and the first contact portion extends partially into the first receiving space and partially contacts the first docking plate. The second fixing portion is fixed to each of the second receiving grooves, and the second contact portion extends partially into the third receiving space and partially contacts the second docking plate.

[0008] In one embodiment, the first angle is between 45 degrees and 135 degrees, and the second angle is 90 degrees.

[0009] In one embodiment, when the second opening is obliquely disposed in the second accommodating space, the angle range of the first angle is greater than or equal to 45 degrees and less than 90 degrees or greater than 90 degrees and less than or equal to 135 degrees, and the length of the first contact portion is less than the length of the second contact portion.

[0010] In another embodiment, when the second opening is directly disposed in the second accommodating space, the first angle is 90 degrees, and the length of the first contact portion is equal to the length of the second contact portion.

[0011] In one embodiment, the core further includes a plurality of stop members formed on both sides of the first body, which interfere with the rear cover.

[0012] In one embodiment, the rear cover further includes a cover body and a plurality of extension segments. The extension segments are disposed on both sides of the cover body along the third direction. Each extension segment has a groove formed on one side of the extension segment near the rubber core. The extension segments engage with each other on both sides of the rubber core, and the groove abuts against each of the stop members.

[0013] In one embodiment, when the second docking plate is disposed in the third receiving space, the second receiving space allows the floating member to move back and forth relative to the core and the rear cover in the first direction or the third direction.

[0014] In one embodiment, the floating member further includes at least one protrusion formed on both sides of the second body, and there is a gap between the floating member and the core and the back cover, so that the floating member is confined in the second accommodating space in the first direction and the third direction.

[0015] In another embodiment, the core further includes at least one first engaging block and two locking portions. The at least one first engaging block is formed in the first body and partially disposed in the first receiving space. The locking portions are respectively formed at corresponding ends of the first body. The floating member further includes at least one second engaging block. The at least one second engaging block is formed in the second body and partially disposed in the third receiving space. The at least one first engaging block and the at least one second engaging block respectively abut against the first docking plate and the second docking plate.

[0016] Other objects of the invention, as well as the means and embodiments of the invention, will become apparent to those skilled in the art upon referring to the accompanying drawings and the embodiments described below. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a card edge connector according to an embodiment of the present invention, in which a first mating card plate and a second mating card plate are inserted;

[0018] Figure 2 This is a schematic diagram of a card edge connector according to an embodiment of the present invention without the first and second mating plates inserted;

[0019] Figure 3 This is an exploded view of a card edge connector according to an embodiment of the present invention;

[0020] Figure 4 This is an exploded view of another embodiment of the card edge connector of the present invention;

[0021] Figure 5 This is a top view of a card edge connector according to an embodiment of the present invention;

[0022] Figure 6 This is a partial schematic diagram of a card edge connector according to an embodiment of the present invention;

[0023] Figure 7 This is a cross-sectional side view of a card edge connector according to an embodiment of the present invention, in which the first mating card plate and the second mating card plate are inserted;

[0024] Figure 8 This is a cross-sectional side view of a card edge connector according to an embodiment of the present invention;

[0025] Figure 9 This is a cross-sectional side view of a floating component and contact unit assembly according to an embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of a card edge connector according to another embodiment of the present invention without the first and second mating plates inserted; and

[0027] Figure 11 This is a top view of a card edge connector according to another embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures

[0029] 100 Card Edge Connector

[0030] 200 First docking plate

[0031] 300 Second docking plate

[0032] 1. Rubber core

[0033] 11 The first ontology

[0034] 12 First Opening

[0035] 13 First receiving slot

[0036] 14 Stop components

[0037] 15 First Card Combination

[0038] 16 Locking Part

[0039] 2. Rear cover

[0040] 21. Cover body

[0041] 22 Extension Section

[0042] 221 Trench

[0043] 3 Floating components

[0044] 31 Second Body

[0045] 32 Second opening

[0046] 33 Second receiving slot

[0047] 34. Protrusion

[0048] 35 Second Card Combination

[0049] 4 Contact Unit

[0050] 41 First Contact

[0051] 411 First fixing part

[0052] 412 First Contact Section

[0053] 42 Second Contact

[0054] 421 Second fixing part

[0055] 422 Second Contact Section

[0056] 43 Connectors

[0057] C clamping parts

[0058] D1 First Direction

[0059] D2 Second Direction

[0060] D3 third direction

[0061] G gap

[0062] S1 First Accommodation Space

[0063] S2 Second Accommodation Space

[0064] S3 Third Compartment Space

[0065] W1 First Angle

[0066] W2, second angle. Detailed Implementation

[0067] The following embodiments will explain the content of this invention. These embodiments are not intended to limit the implementation of this invention to any specific environment, application, or special method as described in the embodiments. Therefore, the descriptions of the embodiments are merely illustrative of the invention and not intended to limit it. It should be noted that in the following embodiments and drawings, some elements not directly related to this invention have been omitted and are not shown, and the dimensional relationships between the elements in the drawings are for ease of understanding only and are not intended to limit the actual scale.

[0068] Please see Figures 1 to 4 . Figure 1 This is a schematic diagram of a card edge connector 100 according to an embodiment of the present invention, in which a first mating card plate 200 and a second mating card plate 300 are inserted. Figure 2 This is a schematic diagram of a card edge connector 100 according to an embodiment of the present invention without the first mating card plate 200 and the second mating card plate 300 inserted. Figure 3 and Figure 4 The diagram shown is an exploded view of a snap-edge connector according to an embodiment of the present invention. The snap-edge connector 100 of the present invention is used to insert a first mating plate 200 and a second mating plate 300. The snap-edge connector 100 includes a core 1, a rear cover 2, a floating member 3, and a plurality of contact units 4. The assembly of the snap-edge connector 100 includes first assembling and fixing the contact units 4, arranged along a first direction D1, to the floating member 3; then assembling and fixing them to the core 1; and finally, the core 1 and the rear cover 2 engaging with each other. In this embodiment, the floating member 3 is buoyantly disposed between the core 1 and the rear cover 2 along a second direction D2.

[0069] Next, let's explain core 1. Please refer to the previous section again. Figure 3 , Figure 4 and Figure 8 ,in Figure 8The diagram shows a cross-sectional side view of the card edge connector 100 with the first mating plate 200 and the second mating plate 300 inserted. The core 1 includes a first body 11, a first opening 12, a plurality of first receiving slots 13, and a plurality of stop members 14. The first opening 12 is formed at one end of the first body 11. The first receiving slots 13 are arranged adjacently along a first direction D1 at the other end of the first body 11. The first receiving slots 13 can accommodate partial contact units 4, and the first body 11 and the first receiving slots 13 together define a first receiving space S1, into which the first mating plate 200 can be inserted. Furthermore, the stop members 14 are formed on both sides of the first body 11. When the core 1 and the rear cover 2 are assembled and engaged, the stop members 14 and the rear cover 2 interfere with each other. It should be noted that, in this embodiment, the number of stop members 14 is taken as an example as six, with three formed on each side. The position and number of these stop members can be adjusted according to the actual combination of the core 1 and the back cover 2, and are not limited here.

[0070] Next, we will explain rear cover 2, such as... Figure 3 and Figure 4 As shown, the rear cover 2 includes a cover body 21 and multiple extension segments 22. The rear cover 2 and the core 1 together define a second accommodating space S2, in which the floating member 3 can be disposed. The extension segments 22 are disposed on both sides of the cover body 21 along a third direction D3, which is perpendicular to the first direction D1. Specifically, each extension segment 22 has a groove 221 formed on one side of the extension segment 22 near the core 1. When the core 1 and the rear cover 2 are assembled and engaged, the extension segments 22 engage with each other on both sides of the core 1. At this time, each groove 221 of the extension segment 22 abuts against and pushes against each of the stop members 14 of the core 1. It should be noted that in this embodiment, the number of extension segments 22 and grooves 221 is taken as an example as six, corresponding to the number of stop members 14. Their positions and numbers can be adjusted according to the actual number and position of the stop members 14, and are not limited here.

[0071] The following section explains floating component 3; please refer to that section as well. Figure 5 and Figure 6 . Figure 5 The image shown is a top view of the card edge connector 100. Figure 6The diagram shows a partial schematic of the card edge connector 100. A floating member 3 is buoyantly disposed within the second accommodating space S2. The floating member 3 includes a second body 31, a second opening 32, a plurality of second accommodating slots 33, and two protrusions 34. The second opening 32 is formed along a second direction D2 in the second body 31, and the second accommodating slots 33 are arranged adjacently along a first direction D1 in the second body 31. The second accommodating slots 33 can accommodate partial contact units 4, and the second body 31 and the second accommodating slots 33 together define a third accommodating space S3, into which the second mating plate 300 can be inserted. Furthermore, the protrusions 34 are formed on both sides of the second body 31 and disposed within the second accommodating space S2. It should be noted that in this embodiment, the number of protrusions 34 is exemplified by two; their position and number can be adjusted according to the actual combination, and are not limited here.

[0072] Please refer to the following: Figure 9 The contact units 4 are arranged adjacent to each other along the first direction D1 between the adhesive core 1 and the back cover 2. Each contact unit 4 includes a plurality of first contact members 41, a plurality of second contact members 42, and a plurality of connecting members 43, with each connecting member 43 connecting between each first contact member 41 and each second contact member 42. The first contact member 41 is disposed in the corresponding first receiving groove 13, and partially extends into the first receiving space S1. The second contact member 42 is disposed in the corresponding second receiving groove 33, and partially extends into the third receiving space S3.

[0073] In detail, such as Figure 7 As shown, each of the first contact members 41 further includes a first fixing portion 411 and a first contact portion 412, and each of the second contact members 42 further includes a second fixing portion 421 and a second contact portion 422. The first fixing portion 411 is inserted into and fixed in each of the first receiving grooves 13, and the first contact portion 412 partially extends into the first receiving space S1. The second fixing portion 421 is inserted into and fixed in each of the second receiving grooves 33, and the second contact portion 422 partially extends into the third receiving space S3. The first contact portion 412 of the first contact member 41 partially contacts the first docking plate 200, and the second contact portion 422 of the second contact member 42 partially contacts the second docking plate 300.

[0074] The following details the connection relationship between the edge connector 100 of the present invention and the first mating plate 200 and the second mating plate 300. For example... Figure 5 , Figure 7 and Figure 8As shown, when the first mating plate 200 and the second mating plate 300 of the card edge connector 100 are electrically connected, the first mating plate 200 is inserted into the first receiving space S1 through the first opening 12 along the third direction D3, and the second mating plate 300 is inserted into the third receiving space S3 through the second opening 32 along the second direction D2. At this time, the first mating plate 200 and the second mating plate 300, which are respectively inserted, form a first angle W1. On the other hand, as... Figure 9 As shown, the first fixing portion 411 of each of the first contact members 41 and the second fixing portion 421 of each of the second contact members 42 form a second angle W2. In this embodiment, the first direction D1 and the third direction D3 are perpendicular to each other, and the second direction can be adjusted according to the position of the second opening of the floating member 3, and is determined by the first angle W1 formed by the first docking plate 200 and the second docking plate 300. Specifically, when the first docking plate 200 and the second docking plate 300 are inserted into the card edge connector 100 of the present invention, the first angle W1 formed by the first docking plate 200 and the second docking plate 300 is between 45 degrees and 135 degrees, while the second angle W2 formed by the first contact member 41 and the second contact member 42 is 90 degrees. In other words, the position of the first docking plate 200 inserted into the first accommodating space S1 is fixed, but the position of the second docking plate 300 inserted into the third accommodating space S3 is adjustable, which is equivalent to the first angle W1 being adjustable. In addition, the first fixing part 411 of each of the first contact members 41 is fixed to the first receiving groove 13 of the core 1, and the second fixing part 421 of each of the second contact members 42 is fixed to the second receiving groove 33 of the floating member 3. Therefore, the second angle W2 is fixed to 90 degrees.

[0075] In one embodiment of this case, when the floating member 3 is tilted in the second accommodating space S2, and the second opening 32 is tilted in the second accommodating space S2, the second docking plate 300 is inserted into the third accommodating space S3 along the second opening 32. At this time, the angle range of the first angle W1 can be greater than or equal to 45 degrees and less than 90 degrees (e.g., Figure 7(As shown) or greater than 90 degrees and less than or equal to 135 degrees (not shown), the length of the first contact portion 412 of each of the first contact members 41 is less than the length of the second contact portion 422 of each of the second contact members 42. In other words, the length of the second contact portion 422 is greater than the length of the first contact portion 412. The areas used to contact the first mating plate 200 and the second mating plate 300 are of equal length. The difference is that the area of ​​the second contact portion 422 used to connect to the bottom of the second fixing portion 421 has an additional extension. The area used to contact the mating plate can be tilted. This design allows the second mating plate 300 to be tilted and inserted into the third accommodating space S3 and interfere with the second contact portion 422, according to the actual connection environment required by the connector, without changing the assembly of the first fixing portion 411 and the second fixing portion 421. More specifically, in this embodiment, the first angle is preferably 78 degrees. In addition, when the angle range of the first angle W1 is between 90 degrees and 135 degrees (not shown), the second contact part 422 connected to the second fixing part 421 is mirrored and reversed. At this time, the clearance space between the core 1 and the rear cover 2 is adjusted according to the position of the second opening 32 of the floating part 3, so that the second docking plate 300 is inserted into the third accommodating space S3 along the second direction D2 determined by the first angle W1.

[0076] In another embodiment of this case, when the floating member 3 is upright in the second accommodating space S2, and the second opening 32 is upright in the second accommodating space S2, the second docking plate 300 is inserted into the third accommodating space S3 along the second opening 32. At this time, the first angle W1 is 90 degrees (not shown), and the length of the first contact portion 412 of each of the first contact members 41 is equal to the length of the second contact portion 422 of each of the second contact members 42. In other words, the shape of the first contact member 41 is exactly the same as the shape of the second contact member 42, that is, the first contact portion 412 and the second contact portion 422 are exactly the same, only with a 90-degree rotation.

[0077] Further explanation of the floating mechanism of the floating element 3 within the card edge connector 100. For example... Figures 5 to 8 As shown, there is a gap G between the floating member 3 and the core 1 and the back cover 2. This gap G includes the gap between the protrusion 34 of the floating member 3 and the core 1. When the floating member 3 is assembled between the core 1 and the back cover 2, it provides that the floating member 3 is confined in the second accommodating space S2 in the first direction D1 and the third direction D3. On the other hand, when the second docking plate 300 is disposed in the third accommodating space S3, the gap G provides that the second accommodating space S2 allows the floating member 3 to move back and forth relative to the core 1 and the back cover 2 in the first direction D1, so that the second docking plate 300 has a floating effect when inserted into the floating member 3.

[0078] It should be noted that in the embodiment of the card edge connector 100 of the present invention, the contact unit 4 is made of metal material, and the core 1, the back cover 2 and the floating part 3 are all made of plastic material.

[0079] In another embodiment of the present invention, please refer to the following: Figure 10 and Figure 11 The difference from the previous embodiment lies in the slightly different structures of the core 1, the back cover 2, and the floating member 3. The following only describes the differences; identical technical details will not be repeated. Specifically, in this embodiment, the core 1 further includes two first engaging blocks 15 and two locking portions 16. The two first engaging blocks 15 are respectively formed on corresponding sides within the first body 11, and each first engaging block 15 is partially disposed in the first accommodating space S1. The locking portions 16 are respectively formed at corresponding ends of the first body 11. The floating member 3 further includes four second engaging blocks 35, each pair of second engaging blocks 35 being formed on corresponding sides within the second body 31, and each second engaging block 35 being partially disposed in the third accommodating space S3. On the other hand, the first mating plate 200 and the second mating plate 300 each have corresponding recesses. When the first mating plate 200 is inserted into the first accommodating space S1 and the second mating plate 300 is inserted into the third accommodating space S3, the corresponding recesses can abut against the first engaging block 15 and the second engaging block 35, thus ensuring that the first mating plate 200 and the second mating plate 300 are engaged and fixed. Furthermore, the locking part 16 can be a screw fixing structure for locking the edge connector 100 onto the printed circuit board. It should be noted that, in this embodiment, the number of the first engaging block 15 and the locking part 16 is two as an example, and the number of the second engaging block 35 is four as an example. Their positions and numbers can be adjusted according to the actual setting, and are not limited here.

[0080] Continuing from the above, in this embodiment, the adhesive core 1 and the rear cover 2 each have a clamping member C, which are respectively formed on the side of the adhesive core 1 and the rear cover 2 near the second docking plate 300, such as... Figure 10 As shown, each clamping component C presents a T-shaped protruding structure. When the card edge connector 100 is automatically assembled onto the printed circuit board, the clamping device with the corresponding clamping component C provides a corrective positioning to ensure that the clamping position is fixed each time, thereby improving the assembly accuracy. In addition, when the second mating plate 300 is disposed in the third accommodating space S3, the gap G provides the second accommodating space S2 to allow the floating component 3 to move back and forth relative to the core 1 and the rear cover 2 in the first direction D1 and / or the third direction D3, so that the second mating plate 300 has a floating effect when inserted into the floating component 3.

[0081] In summary, the edge connector of the present invention comprises a connection assembly of a core, a back cover, a floating member, and a contact unit. By adjusting the structure of the contact member used to contact one of the card plates and adjusting the opening direction of the floating member, card plates inserted into the edge connector at different specific angles can be accommodated. Furthermore, the gap between the floating member and the core and back cover allows the card plate to have a floating effect when inserted into its edge connector. Therefore, customized edge connectors with dual card plate insertion can be designed according to different insertion scenarios, achieving the effects of increasing connector flexibility, reducing production costs, and improving connector assembly efficiency.

[0082] The above embodiments are merely illustrative of implementation schemes of the present invention and to explain the technical features of the present invention, and are not intended to limit the scope of protection of the present invention. Any changes or equivalent arrangements that can be easily made by those skilled in the art are within the scope of the present invention, and the scope of protection of the present invention should be determined by the claims.

Claims

1. A card edge connector for inserting a first mating card plate and a second mating card plate, the card edge connector comprising: A core includes a first body, a first opening, and a plurality of first receiving slots. The first opening is formed at one end of the first body, and the first receiving slots are arranged adjacent to each other at the other end of the first body along a first direction. The first body and the first receiving slots together define a first receiving space. A rear cover is engaged with the rubber core, and the rear cover and the rubber core together define a second receiving space; A floating member is buoyantly disposed in the second receiving space. The floating member includes a second body, a second opening, and a plurality of second receiving slots. The second opening is formed in the second body along a second direction, and the second receiving slots are arranged adjacently in the second body along a first direction. The second body and the second receiving slots together define a third receiving space. Multiple contact units are arranged adjacently between the core and the back cover along the first direction. Each contact unit includes multiple first contacts, multiple second contacts, and multiple connectors. Each connector is connected between each first contact and each second contact. The first contact is disposed in the corresponding first receiving groove and extends partially into the first receiving space, and the second contact is disposed in the corresponding second receiving groove and extends partially into the third receiving space. in, When electrically connected, the first mating plate is inserted into the first receiving space through the first opening along a third direction, and the second mating plate is inserted into the third receiving space through the second opening along the second direction. At this time, the first mating plate and the second mating plate form a first angle, and each of the first contacts and each of the second contacts form a second angle. The first direction is perpendicular to the third direction, and the second direction is determined by the first angle.

2. The card edge connector as described in claim 1, wherein, Each of the first contact members further includes a first fixing portion and a first contact portion, and each of the second contact members further includes a second fixing portion and a second contact portion. The first fixing portion is fixed to each of the first receiving grooves, and the first contact portion extends partially into the first receiving space and partially contacts the first docking plate. The second fixing portion is fixed to each of the second receiving grooves, and the second contact portion extends partially into the third receiving space and partially contacts the second docking plate.

3. The card edge connector as described in claim 2, wherein, The first angle is between 45 degrees and 135 degrees, and the second angle is 90 degrees.

4. The card edge connector as described in claim 3, wherein, When the second opening is obliquely disposed in the second accommodating space, the angle range of the first angle is greater than or equal to 45 degrees and less than 90 degrees or greater than 90 degrees and less than or equal to 135 degrees, and the length of the first contact portion is less than the length of the second contact portion.

5. The card edge connector as described in claim 3, wherein, When the second opening is directly provided in the second accommodating space, the first angle is 90 degrees, and the length of the first contact portion is equal to the length of the second contact portion.

6. The card edge connector as described in any one of claims 1 to 5, wherein, The core also includes multiple stop members formed on both sides of the first body, which interfere with the rear cover.

7. The card edge connector as claimed in claim 6, wherein, The rear cover also includes a cover body and a plurality of extension segments. The extension segments are disposed on both sides of the cover body along the third direction. Each extension segment has a groove formed on one side of the extension segment near the rubber core. The extension segments engage with each other on both sides of the rubber core, and the groove abuts against each of the stop members.

8. The card edge connector as claimed in claim 7, wherein, When the second docking plate is disposed in the third receiving space, the second receiving space allows the floating member to move back and forth relative to the core and the rear cover in the first direction or the third direction.

9. The card edge connector as claimed in claim 8, wherein, The floating member also includes at least one protrusion formed on both sides of the second body, and there is a gap between the floating member and the core and the back cover, so that the floating member is confined in the second accommodating space in the first direction and the third direction.

10. The card edge connector as claimed in claim 9, wherein, The core also includes at least one first engaging block and two locking parts. The at least one first engaging block is formed in the first body and partially disposed in the first receiving space. The locking parts are respectively formed at corresponding ends of the first body. The floating member also includes at least one second engaging block. The at least one second engaging block is formed in the second body and partially disposed in the third receiving space. The at least one first engaging block and the at least one second engaging block respectively abut against the first docking plate and the second docking plate.

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