Edge Connector

Abstract

To provide an edge connector that solves problems such as lack of flexibility and high production costs. The present invention relates to an edge connector 100 for inserting and connecting a first connecting circuit board 200 and a second connecting circuit board 300. The edge connector includes an insulator 1, a rear cover member 2, a floating member 3, and a plurality of contact units. The insulator includes a first body, a first opening, a plurality of first accommodating grooves, and a plurality of stopper portions. The first body and the first accommodating groove define a first accommodating space S1. The rear cover member engages with the insulator and defines a second accommodating space with the insulator. The floating member is floatingly installed in the second accommodating space. The floating member includes a second body, a second opening, a plurality of second accommodating grooves, and at least one protrusion. The contact unit includes a plurality of first contact members, a plurality of second contact members, and a plurality of connecting members.

Description

[Technical field]

[0001] The present invention relates to an edge connector, and more particularly to an edge connector having a floating member whose opening position can be adjusted, allowing two connection circuit boards to be inserted at opening positions of different angles. [Background technology]

[0002] Edge connectors are connectors that are widely used in various electronic devices. Their main function is to insert different types of connecting circuit boards into the slots to expand or enhance the electronic devices and their functions. In recent years, with the development of automotive technology, the application of edge connectors in the vehicle field is also becoming more and more popular. The internal electronic systems of modern automobiles need to realize the signal transmission of functions such as vehicle information, audio-visual systems, navigation systems, vehicle diagnosis and monitoring through various types of circuit boards. Therefore, the design and structure of edge connectors need to be continuously improved to meet the increasingly complex internal electronic systems and the limitations of automotive space.

[0003] In current edge connectors, it is common to insert and connect two connecting circuit boards horizontally. However, this horizontal connection method is limited by the installation environment. It is necessary to adjust the installation position of the connecting circuit board to meet the needs of different environments. In addition, if the connecting circuit board needs to be inserted and connected in a different direction, it is necessary to redesign the mold to produce the edge connector. This significantly increases the manufacturing cost and manufacturing time, making the production process complicated and expensive.

[0004] SUMMARY OF THE DISCLOSURE In view of the above circumstances, the present invention proposes an edge connector to solve the problems of the prior art edge connectors, such as lack of flexibility and high production costs. Summary of the Invention

[0005] The purpose of the present invention is to provide an edge connector which includes an insulator, a rear cover member and a floating member. The main feature of the present invention is the design of the internal contact unit and the floating member. A part of the contact unit is installed on the insulator and the floating member. In practice, the connection circuit board needs to be inserted and connected at different insertion positions according to the use requirements of the connector. The present invention can change the installation direction of the floating member and the position where the contact unit contacts the connection circuit board according to different insertion positions. Thus, the edge connector of the present invention can fine-tune the local structure of the edge connector according to the space inside the vehicle body and adapt to the insertion position of the connection circuit board. The present invention has the effects of improving the flexibility of use, reducing the production cost and shortening the production time.

[0006] In order to achieve the above object, the present invention discloses an edge connector for inserting and connecting a first connection circuit board and a second connection circuit board. The edge connector includes an insulator, a rear cover member, a floating member, and a plurality of contact units. The insulator includes a first body, a first opening, and a plurality of first accommodating grooves. The first opening is formed at one end of the first body. The first accommodating grooves are arranged side by side at the other end of the first body along a first direction. The first body and the first accommodating groove define a first accommodating space. The rear cover member engages with the insulator. The rear cover member and the insulator define a second accommodating space. The floating member is floatingly installed in the second accommodating space. The floating member includes a second body, a second opening, and a plurality of second accommodating grooves. The second opening is formed in the second body along a second direction. The second accommodating grooves are arranged side by side at the second body along the first direction. The second body and the second accommodating groove define a third accommodating space. The contact units are arranged in line between the insulator and the rear cover member along the first direction. The contact units include a plurality of first contact members, a plurality of second contact members, and a plurality of connecting members. Each connecting member is connected between each of the first contact members and each of the second contact members. The first contact members are arranged in the first accommodating groove and extend partially into the first accommodating space. The second contact members are arranged in the second accommodating groove and extend partially into the third accommodating space. When the first connection circuit board and the second connection circuit board are inserted into an edge connector and connected, the first connection circuit board is inserted into the first accommodating space through the first opening along the third direction, and the second connection circuit board is inserted into the third accommodating space through the second opening along the second direction. The first connection circuit board and the second connection circuit board form a first angle. Each of the first contact members and each of the second contact members form a second angle. The first direction and the third direction are perpendicular to each other, and the second direction is determined by the first angle.

[0007] In an embodiment of the invention, 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 fixedly installed in each of the first accommodating grooves, and a portion of the first contact portion extends into the first accommodating space. A portion of the first contact portion contacts the first connecting circuit board. The second fixing portion is fixedly installed in each of the second accommodating grooves, and a portion of the second contact portion extends into the third accommodating space. A portion of the second contact portion contacts the second connecting circuit board.

[0008] In an embodiment of the present invention, the first angle is between 45 degrees and 135 degrees, and the second angle is 90 degrees.

[0009] In an embodiment of the present invention, when the second opening is obliquely installed in the second accommodating space, 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 shorter than the length of the second contact portion.

[0010] In another embodiment of the present invention, when the second opening is disposed perpendicular to the second receiving 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 an embodiment of the present invention, the insulator further includes a plurality of stoppers formed on both sides of the first body and interfering with the rear cover member.

[0012] In an embodiment of the present invention, the rear cover member further includes a cover body and a plurality of extensions. The extensions are disposed on both sides of the cover body along the third direction. Each of the extensions has a groove formed on a side of each of the extensions close to the insulator. The extensions engage with both sides of the insulator, and the grooves abut against each of the stoppers.

[0013] In an embodiment of the present invention, when the second connection circuit board is installed in the third accommodating space, the second accommodating space allows the floating member to move back and forth in a first direction or a third direction relative to the insulator and the rear cover member.

[0014] In an embodiment of the present invention, the floating member further includes at least one protrusion, the protrusion being formed on both sides of the second body, and there are gaps between the floating member and the insulator and the rear cover member, allowing the floating member to move in the first direction and the third direction in the second accommodating space.

[0015] In another embodiment of the present invention, the insulator further includes at least one first engaging protrusion and two locking portions. The first engaging protrusion is formed in the first body and a portion thereof is disposed in the first receiving space. The locking portions are formed on opposite ends of the first body. The floating member further includes at least one second engaging protrusion. The second engaging protrusion is formed in the second body and a portion thereof is disposed in the third receiving space. The first engaging protrusion and the second engaging protrusion abut against the first connecting circuit board and the second connecting circuit board, respectively.

[0016] Those skilled in the art will be able to understand other objects, implementation means and embodiments of the present invention by referring to the drawings and the embodiments described below. [Brief description of the drawings]

[0017] [Figure 1] FIG. 2 is a schematic diagram showing an edge connector into which a first connection circuit board and a second connection circuit board are inserted according to an embodiment of the present invention; [Diagram 2] FIG. 2 is a schematic diagram showing an edge connector in which a first connection circuit board and a second connection circuit board are not inserted according to an embodiment of the present invention; [Diagram 3] FIG. 2 is an exploded view of an edge connector according to an embodiment of the present invention; [Figure 4] FIG. 2 is an exploded view of an edge connector according to an embodiment of the present invention; [Diagram 5] FIG. 1 is a top view of an edge connector according to an embodiment of the present invention; [Figure 6] FIG. 1 is a partial schematic diagram showing an edge connector according to an embodiment of the present invention. [Figure 7]FIG. 2 is a cross-sectional side view of an edge connector into which a first connection circuit board and a second connection circuit board are inserted according to an embodiment of the present invention; [Figure 8] 1 is a cross-sectional side view of an edge connector according to an embodiment of the present invention; [Figure 9] FIG. 2 is a cross-sectional side view showing a floating member and a contact unit according to an embodiment of the present invention; [Figure 10] FIG. 2 is a schematic diagram showing an edge connector without a first connection circuit board and a second connection circuit board inserted therein according to another embodiment of the present invention; [Figure 11] FIG. 2 is a top view of an edge connector according to another embodiment of the present invention; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The contents of the present invention will be described below through examples. Note that the examples of the present invention are examples of embodiments, and are not intended to limit the present invention to the environments, applications, or specific aspects described in the examples. Therefore, the explanation of the examples is intended to explain the present invention, but does not limit the present invention. Note that in the embodiments and drawings, components that are not directly related to the present invention are omitted and not shown. The dimensional relationship between the components in the drawings is intended to facilitate understanding, and does not limit the actual dimensions.

[0019] The present invention will be described with reference to Figures 1 to 4. Figure 1 is a schematic diagram of an edge connector 100 according to an embodiment of the present invention, in which a first connection circuit board 200 and a second connection circuit board 300 are inserted. Figure 2 is a schematic diagram of an edge connector 100 according to an embodiment of the present invention, in which a first connection circuit board 200 and a second connection circuit board 300 are not inserted. Figures 3 and 4 are exploded views of an edge connector according to an embodiment of the present invention. The edge connector 100 of the present invention is for inserting and connecting the first connection circuit board 200 and the second connection circuit board 300. The edge connector 100 includes an insulator 1, a rear cover member 2, a floating member 3, and a plurality of contact units 4. The assembly of the edge connector 100 includes the following steps. First, the contact units 4 arranged along the first direction D1 are assembled and fixed to the floating member 3. Next, the contact units 4 and the floating member 3 are assembled and fixed to the insulator 1. Finally, the insulator 1 and the rear cover member 2 are engaged with each other. The floating member 3 of this embodiment is disposed between the insulator 1 and the rear cover member 2 in a floating manner along the second direction D2.

[0020] Next, the insulator 1 will be described with reference to FIG. 3, FIG. 4, and FIG. 8. FIG. 8 is a cross-sectional side view of the edge connector 100 with the first connection circuit board 200 and the second connection circuit board 300 inserted therein. The insulator 1 includes a first body 11, a first opening 12, a plurality of first accommodating grooves 13, and a plurality of stopper portions 14. The first opening 12 is formed at one end of the first body 11. The first accommodating grooves 13 are arranged side by side at the other end of the first body 11 along the first direction D1. The first accommodating grooves 13 are for accommodating a part of the contact unit 4. The first body 11 and the first accommodating groove 13 define a first accommodating space S1, and the first accommodating space S1 is for accommodating the first connection circuit board 200. The stopper portions 14 are formed on both side surfaces of the first body 11. When the insulator 1 and the rear cover member 2 are assembled and engaged with each other, the stopper portions 14 interfere with the rear cover member 2. In this embodiment, the number of stopper portions 14 is exemplified as six, with three formed on each side, but the formation position and number can be adjusted according to the actual combined design of the insulator 1 and the rear cover member 2, and are not limited to this.

[0021] Next, the rear cover member 2 will be described. As shown in Figs. 3 and 4, the rear cover member 2 includes a cover body 21 and a plurality of extensions 22. The rear cover member 2 and the insulator 1 define a second accommodation space S2. The second accommodation space S2 is for accommodating the floating member 3. The extensions 22 are installed on both sides of the cover body 21 along the third direction D3. The third direction D3 is perpendicular to the first direction D1. More specifically, each extension 22 has a groove 221. The groove 221 is formed on a side surface of each extension 22 that is closer to the insulator 1. When the insulator 1 and the rear cover member 2 are assembled and engaged, the extensions 22 engage with both sides of the insulator 1, and each groove 221 of the extension 22 abuts against and is pressed against each stopper portion 14 of the insulator 1. In this embodiment, the number of extensions 22 and grooves 221 is exemplified as six, which corresponds to the number of stopper portions 14, but the formation positions and number thereof can be adjusted according to the actual number and positions of the stopper portions 14, and are not limited to this.

[0022] Next, the floating member 3 will be described with reference to FIG. 5 and FIG. 6. FIG. 5 is a top view of the edge connector 100. FIG. 6 is a partial schematic view of the edge connector 100. The floating member 3 is floatingly installed in the second accommodating space S2. The floating member 3 includes a second body 31, a second opening 32, a plurality of second accommodating grooves 33, and two protrusions 34. The second opening 32 is formed in the second body 31 along the second direction D2. The second accommodating grooves 33 are installed in line with the second body 31 along the first direction D1. The second accommodating grooves 33 are for accommodating a part of the contact unit 4. The second body 31 and the second accommodating groove 33 define a third accommodating space S3. The third accommodating space S3 is for accommodating the second connection circuit board 300. The protrusions 34 are formed on both sides of the second body 31 and installed in the second accommodating space S2. In this embodiment, the number of the protrusions 34 is exemplified as two, but the formation positions and the number of the protrusions 34 can be adjusted according to the actual combination design, and are not limited to this.

[0023] As shown in FIG. 9, the contact units 4 are arranged side by side between the insulator 1 and the rear cover member 2 along the first direction D1. The contact units 4 include a plurality of first contact members 41, a plurality of second contact members 42, and a plurality of connecting members 43. Each connecting member 43 is connected between each first contact member 41 and each second contact member 42. The first contact member 41 is arranged in the first accommodating groove 13. A portion of the first contact member 41 extends into the first accommodating space S1. The second contact member 42 is arranged in the second accommodating groove 33. A portion of the second contact member 42 extends into the third accommodating space S3.

[0024] 7, each of the first contact members 41 includes a first fixing portion 411 and a first contact portion 412. Each of the second contact members 42 includes a second fixing portion 421 and a second contact portion 422. The first fixing portion 411 is inserted into and fixed to each of the first accommodating grooves 13. A portion of the first contact portion 412 extends into the first accommodating space S1. The second fixing portion 421 is inserted into and fixed to each of the second accommodating grooves 33. A portion of the second contact portion 422 extends into the third accommodating space S3. A portion of the first contact portion 412 of the first contact member 41 contacts the first connection circuit board 200. A portion of the second contact portion 422 of the second contact member 42 contacts the second connection circuit board 300.

[0025] The connection relationship between the edge connector 100 and the first and second connection circuit boards 200 and 300 of the present invention will be described in detail below. As shown in Figures 5, 7 and 8, when the edge connector 100 electrically connects the first and second connection circuit boards 200 and 300, the first connection circuit board 200 passes through the first opening 12 along the third direction D3 and is inserted into the first accommodating space S1, and the second connection circuit board 300 passes through the second opening 32 along the second direction D2 and is inserted into the third accommodating space S3. At this time, the first connection circuit board 200 and the second connection circuit board 300 form a first angle W1. Meanwhile, as shown in Figure 9, the first fixing portion 411 of each first contact member 41 and the second fixing portion 421 of each second contact member 42 form a second angle W2. In this embodiment, the first direction D1 and the third direction D3 are perpendicular to each other. The second direction is adjustable according to the position of the second opening of the floating member 3, and is determined by the first angle W1 between the first connection circuit board 200 and the second connection circuit board 300. In detail, when the first connection circuit board 200 and the second connection circuit board 300 are inserted into the edge connector 100 of the present invention, the first angle W1 formed by the first connection circuit board 200 and the second connection circuit board 300 is 45 degrees to 135 degrees. 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 where the first connection circuit board 200 is inserted into the first accommodating space S1 is fixed, but the position where the second connection circuit board 300 is inserted into the third accommodating space S3 is adjustable. That is, the first angle W1 is adjustable. In addition, the first fixing portion 411 of each first contact member 41 is fixedly installed in the first accommodating groove 13 of the insulator 1. The second fixing portion 421 of each second contact member 42 is fixedly installed in the second receiving groove 33 of the floating member 3. Therefore, the second angle W2 is 90 degrees.

[0026] In the embodiment of the present invention, when the floating member 3 is installed in the second accommodating space S2 at an angle and the second opening 32 is installed obliquely in the second accommodating space S2, the second connection circuit board 300 is inserted into the third accommodating space S3 along the second opening 32. The first angle W1 is 45 degrees or more and less than 90 degrees (see FIG. 7) or more than 90 degrees and less than 135 degrees (not shown). The length of the first contact portion 412 of the first contact member 41 is shorter than the length of the second contact portion 422 of the second contact member 42. In other words, the length of the second contact portion 422 is longer than the length of the first contact portion 412. The portion in contact with the first connection circuit board 200 and the portion in contact with the second connection circuit board 300 are equal in length. The difference is that the portion of the second contact portion 422 connected to the bottom of the second fixing portion 421 has an extension portion. This extension portion allows the portion in contact with the connection circuit board to be installed obliquely. This design allows the user to incline the second connection circuit board 300 according to the actual installation environment of the connector and insert it into the third accommodation space S3 to contact the second contact portion 422 without changing the assembly design of the first fixing portion 411 and the second fixing portion 421. More specifically, in this embodiment, the first angle is preferably 78 degrees. Also, when the first angle W1 is greater than 90 degrees and equal to or less than 135 degrees (not shown), the second contact portion connected to the second fixing portion 421 is arranged in a left-right reversed manner with respect to the second contact portion 422 in FIG. 7. In that case, since there is an escape space between the insulator 1 and the rear cover member 2, it becomes possible to insert the second connection circuit board 300 into the third accommodation space S3 along the second direction D2 determined by the first angle W1 according to the position of the second opening 32 of the floating member 3.

[0027] In another embodiment of the present invention, when the floating member 3 is installed upright in the second accommodating space S2 and the second opening 32 is installed vertically in the second accommodating space S2, the second connecting circuit board 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). The length of the first contact portion 412 of each first contact member 41 is equal to the length of the second contact portion 422 of each second contact member 42. In other words, the shape of the first contact member 41 and the shape of the second contact member 42 are completely the same. That is, the first contact portion 412 and the second contact portion 422 are completely the same, and are simply arranged rotated by 90 degrees.

[0028] Furthermore, a floating method of the floating member 3 in the edge connector 100 will be described. As shown in Figs. 5 to 8, a gap G exists between the floating member 3 and the insulator 1 and rear cover member 2. For example, a gap G exists between the protrusion 34 of the floating member 3 and the insulator 1. When the floating member 3 is assembled to the insulator 1 and rear cover member 2, the floating member 3 is allowed to move in the first direction D1 and the third direction D3 in the second accommodation space S2. On the other hand, when the second connection circuit board 300 is installed in the third accommodation space S3, the second accommodation space S2 allows the floating member 3 to move back and forth in the first direction D1 relative to the insulator 1 and rear cover member 2 due to the gap G. This allows the second connection circuit board 300 to be inserted in a floating manner by the floating member 3.

[0029] Moreover, in the embodiment of the edge connector 100 of the present invention, the contact unit 4 is made of a metal material, while the insulator 1, the rear cover member 2 and the floating member 3 are made of a plastic material.

[0030] Another embodiment of the present invention will be described with reference to Figs. 10 and 11. The difference from the previous embodiment is that the insulator 1, rear cover member 2, and floating member 3 of this embodiment have slightly different structures. Hereinafter, only the differences will be described, and the same technical content will not be described repeatedly. In detail, in this embodiment, the insulator 1 includes two first engaging protrusions 15 and two locking portions 16. The two first engaging protrusions 15 are formed on both sides in the first body 11. A portion of each of the first engaging protrusions 15 is disposed in the first accommodation space S1. The locking portions 16 are formed on both opposing ends of the first body 11. The floating member 3 includes four second engaging protrusions 35. Each pair of the second engaging protrusions 35 is formed on both sides in the second body 31. A portion of each of the second engaging protrusions 35 is disposed in the third accommodation space S3. Meanwhile, the first connection circuit board 200 and the second connection circuit board 300 each have a recess. When the first connection circuit board 200 is inserted into the first accommodation space S1 and the second connection circuit board 300 is inserted into the third accommodation space S3, the recesses come into contact with the first engaging protrusions 15 and the second engaging protrusions 35, ensuring that the first connection circuit board 200 and the second connection circuit board 300 are securely fitted together. The locking portions 16 have a screw fixing structure and are used to fix the edge connector 100 to the printed circuit board. Note that, in this embodiment, the number of the first engaging protrusions 15 and the locking portions 16 is 2, and the number of the second engaging protrusions 35 is 4, but the positions and numbers can be adjusted according to the actual situation and are not limited to this.

[0031] In view of the above, in this embodiment, the insulator 1 and the rear cover member 2 each have a grip portion C. The grip portion C is formed on the side of the insulator 1 and the rear cover member 2 close to the second connection circuit board 300. As shown in FIG. 10, each grip portion C has a protruding structure resembling a T-shape. When the edge connector 100 is assembled to the printed circuit board in an automated manner, it can be gripped using a jig corresponding to the grip portion C, thereby calibrating the position, ensuring the accuracy of gripping each time, and improving the accuracy of assembly. Furthermore, when the second connection circuit board 300 is installed in the third accommodating space S3, the second accommodating space S2 allows the floating member 3 to move back and forth in the first direction D1 and / or the third direction D3 relative to the insulator 1 and the rear cover member 2 due to the gap G. This allows the second connection circuit board 300 to be inserted in a floating manner by the floating member 3.

[0032] To sum up, the edge connector of the present invention includes an insulator, a rear cover member, a floating member, and a contact unit. The present invention adjusts the structure of the contact member for contacting the connecting circuit board and adjusts the opening direction of the floating member, so that the connecting circuit board can be inserted into the edge connector from different angles. Furthermore, the gap between the floating member and the insulator and the rear cover member allows the connecting circuit board to be inserted and connected to the edge connector in a floating manner. This allows a customized edge connector to be designed according to the installation environment of the connector, and two connecting circuit boards to be inserted. The present invention can improve the flexibility of use of the connector, reduce production costs, and improve the assembly efficiency of the connector.

[0033] The above examples are for explaining the embodiments of the present invention and for explaining the characteristic configurations of the present invention, but the present invention is not limited to the above examples. Modifications or equivalent arrangements that can be easily made by those skilled in the art are also within the scope of the present invention. The scope of protection of the rights of the present invention is based on the scope of the utility model registration claims. [Explanation of symbols]

[0034] 100 Edge Connector 200 First connection circuit board 300 Second connection circuit board 1 Insulator 11 First Body 12 First opening 13 First storage groove 14 Stopper part 15 First engaging protrusion 16 Lock Section 2 Rear cover member 21 Cover body 22 Stretching section 221 Groove 3 Floating members 31 Second Body 32 Second Opening 33 Second storage ditch 34 Protrusion 35 Second engagement protrusion 4 Contact Unit 41 first contact member 411 1st fixed part 412 1st contact part 42 second contact member 421 2nd fixed part 422 2nd contact part 43 Connection parts C. Grip D1 1st direction D2 2nd direction D3 Third direction G Gap S1 First Storage Space S2 Second Storage Space S3 Third Containment Space W1 1st angle W2 Second angle

Claims

1. An edge connector for inserting and connecting a first connection circuit board and a second connection circuit board, an insulator including a first body, a first opening, and a plurality of first accommodating grooves, the first opening being formed at one end of the first body, the first accommodating grooves being arranged side by side at the other end of the first body along a first direction, and the first body and the first accommodating grooves defining a first accommodating space; a rear cover member that engages with the insulator and defines a second housing space together with the insulator; a floating member that is floatingly installed in the second accommodating space, the floating member including a second body, a second opening, and a plurality of second accommodating grooves, the second openings being formed in the second body along a second direction, the second accommodating grooves being installed in the second body along the first direction, and the second body and the second accommodating grooves defining a third accommodating space; a plurality of contact units arranged side by side between the insulator and the rear cover member along the first direction, the contact units including a plurality of first contact members, a plurality of second contact members, and a plurality of connecting members, each of the connecting members being connected between each of the first contact members and each of the second contact members, the first contact members being arranged in the first accommodating grooves and portions of the first contact members extending into the first accommodating space, and the second contact members being arranged in the second accommodating grooves and portions of the second contact members extending into the third accommodating space; when the first connection circuit board and the second connection circuit board are inserted into the edge connector and connected, the first connection circuit board passes through the first opening along a third direction and is inserted into the first accommodating space, the second connection circuit board passes through the second opening along the second direction and is inserted into the third accommodating space, the first connection circuit board and the second connection circuit board form a first angle, each of the first contact members and each of the second contact members form a second angle, the first direction and the third direction are perpendicular, and the second direction is determined by the first angle.

2. Each of the first contact members includes a first fixing portion and a first contact portion, Each of the second contact members includes a second fixing portion and a second contact portion, The first fixing portion is fixedly installed in each of the first receiving grooves, A portion of the first contact portion extends into the first accommodating space, a portion of the first contact portion contacts the first connection circuit board; The second fixing portion is fixedly installed in each of the second receiving grooves, A portion of the second contact portion extends into the third accommodating space, The edge connector according to claim 1 , wherein a portion of the second contact portion contacts the second connection circuit board.

3. 3. The edge connector of claim 2, wherein said first angle is between 45 degrees and 135 degrees and said second angle is 90 degrees.

4. The edge connector of claim 3, characterized in that when the second opening is installed obliquely in the second accommodating space, the first angle is greater than 45 degrees and less than 90 degrees, or greater than 90 degrees and less than 135 degrees, and the length of the first contact portion is shorter than the length of the second contact portion.

5. 4. The edge connector of claim 3, wherein when the second opening is installed perpendicular to the second receiving 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 insulator further includes a plurality of stopper portions, 6. The edge connector according to claim 1, wherein the stopper portions are formed on both side surfaces of the first body and interfere with the rear cover member.

7. The rear cover member further includes a cover body and a plurality of extensions. The extensions are disposed on both sides of the cover body along the third direction, Each of the extensions has a groove, the groove being formed on a side surface of each of the extensions that is closer to the insulator, The extensions engage with both sides of the insulator, The edge connector according to claim 6 , wherein the groove abuts each of the stoppers.

8. The edge connector of claim 7, characterized in that when the second connection circuit board is installed in the third accommodating space, the second accommodating space allows the floating member to move back and forth in the first direction or the third direction relative to the insulator and the rear cover member.

9. The floating member further includes at least one protrusion, The protrusions are formed on both sides of the second body, 9. The edge connector of claim 8, wherein there is a gap between the floating member and the insulator and the rear cover member, allowing the floating member to move in a first direction and a third direction within the second accommodating space.

10. The insulator further includes at least one first engaging protrusion and two locking portions, The first engaging protrusion is formed in the first body, and a part of the first engaging protrusion is disposed in the first housing space, The locking portions are formed on both opposing ends of the first body, The floating member further includes at least one second engagement protrusion, The second engaging protrusion is formed in the second body, and a part of the second engaging protrusion is disposed in the third housing space, 10. The edge connector according to claim 9, wherein the first engaging protrusion and the second engaging protrusion abut against the first connection circuit board and the second connection circuit board, respectively.

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