CPCI connector crimping tool

Abstract

The utility model relates to connector assembly technical field provides a CPCI connector crimping tool, include: base and crimping block, base is used for placing the circuit board of waiting with backplane connector crimping, and the area corresponding with backplane connector on base is equipped with a plurality of guide holes, along the thickness direction of base, a plurality of guide holes are penetrated in base, a plurality of guide holes and the pin hole on the circuit board are set up one to one, and the guide hole is used for the pin of backplane connector first side to wear and set, crimping block has a plurality of side to side settings accommodating groove to backplane connector, and the accommodating groove is used for accommodating the pin of backplane connector second side, to under the action of crimping block to backplane connector's crimping force, backplane connector and circuit board are crimped. The utility model provides CPCI connector crimping tool, makes the pin of backplane connector both sides in crimping process can be protected, avoided the deformation of pin, realized CPCI connector and the reliability in the crimping of circuit board.

Description

Technical Field

[0001] This utility model relates to the field of connector assembly technology, and in particular to a CPCI connector crimping tool. Background Technology

[0002] When connecting a CPCI connector to a circuit board, specialized tooling is required to assist in the connection between the CPCI connector and the circuit board to ensure a high success rate of crimping. The crimping between the circuit board and the CPCI connector typically uses a pin-pin mating method, where the pins on the connector are pressed into pinholes on the circuit board.

[0003] Since CPCI connectors consist of a backplane connector and a mating shell, in practical applications, the backplane connector must first be crimped onto the circuit board, and then the mating shell is assembled onto the exposed pins of the backplane connector on the other side of the circuit board. Currently, crimping fixtures are only suitable for assembling the connector to a single side of the circuit board, i.e., when the connector pins do not protrude from the circuit board or when the exposed circuit board does not require the mating shell. However, in actual production, due to the excessive length of the backplane connector pins, slight deformation occurs after crimping, making it difficult to assemble the mating shell with the backplane connector pins. Furthermore, there is a risk of pin bending or even breakage during circuit board assembly. Utility Model Content

[0004] This invention provides a CPCI connector crimping fixture to solve the problem that existing crimping fixtures are only suitable for single-sided assembly, and that the pins may deform, bend, or even break after crimping when assembling CPCI connectors with circuit boards.

[0005] This utility model provides a CPCI connector crimping fixture, including: a base, the base being used to place a circuit board to be crimped with a backplane connector, the base having a plurality of guide holes in an area corresponding to the backplane connector, the plurality of guide holes penetrating the base along the thickness direction of the base, the plurality of guide holes being configured one-to-one with the pin holes on the circuit board, the guide holes being used for the pins on the first side of the backplane connector to pass through;

[0006] A crimping block has multiple side-by-side receiving slots on the side facing the backplane connector. The receiving slots are used to receive pins on the second side of the backplane connector so that the backplane connector is crimped to the circuit board under the crimping force of the crimping block on the backplane connector.

[0007] According to the present invention, a CPCI connector crimping fixture is provided in which the thickness of the base is greater than the length of the pins on the first side of the backplate connector that protrude from the circuit board.

[0008] According to the present invention, a CPCI connector crimping tool is provided, wherein the crimping block has positioning holes on both sides facing the inner wall of the backplate connector;

[0009] The inner wall of the backplate connector has a positioning structure, the positioning hole is adapted to the positioning structure and is arranged along the height direction of the crimping block.

[0010] According to the present invention, a CPCI connector crimping fixture is provided, wherein the two sides of the receiving groove are arranged in parallel, and the bottom of the receiving groove is arc-shaped.

[0011] According to the present invention, a CPCI connector crimping tool is provided, wherein the guide hole has a frustum structure;

[0012] The larger end of the frustum structure faces the circuit board, and the central axis of the frustum structure is coaxial with the central axis of the pin hole of the circuit board.

[0013] According to the present invention, the diameter of the large end of the frustum structure is 0.18 mm to 0.22 mm larger than the pin on the first side, and the diameter of the small end of the frustum structure is 0 mm to 0.02 mm larger than the pin on the first side.

[0014] According to the present invention, a CPCI connector crimping fixture is provided, wherein the base has a groove on the side facing the circuit board, and the groove is used to clamp the circuit board.

[0015] According to the present invention, a CPCI connector crimping fixture is provided, wherein the base has a pickup groove on the side facing the circuit board;

[0016] The pickup slot extends perpendicularly to the groove. When the circuit board is installed in the groove, both ends of the pickup slot are exposed on opposite sides of the circuit board.

[0017] According to the present invention, a CPCI connector crimping fixture is provided, wherein multiple pickup slots are provided and the multiple pickup slots are spaced apart.

[0018] According to the present invention, a CPCI connector crimping fixture is provided, wherein the groove and the corner of the circuit board are provided with a rounded corner.

[0019] The CPCI connector crimping fixture provided by this utility model assists in the crimping process of the backplane connector and the circuit board. The crimping fixture includes a base and a crimping block. The base supports the backplane connector and is provided with a guide hole to accommodate the pins on the first side of the backplane connector. The crimping block is provided with a receiving groove to accommodate the pins on the second side of the backplane connector. During the crimping process of the backplane connector and the circuit board, the receiving groove can protect the pins on the second side of the backplane connector, and the guide hole can protect and guide the pins on the first side of the backplane connector. This ensures that the pins on both sides of the backplane connector are protected during the crimping process, avoiding pin deformation and achieving reliability in the crimping process of the CPCI connector and the circuit board. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the main structure of the backplane connector provided by this utility model.

[0022] Figure 2 This is a three-dimensional structural diagram of the pressure shell provided by this utility model.

[0023] Figure 3 This is a schematic diagram of the installation of the CPCI connector and circuit board provided by this utility model.

[0024] Figure 4 This is a schematic diagram of the main structure of the base provided by this utility model.

[0025] Figure 5 This utility model provides Figure 4 An enlarged view of part A.

[0026] Figure 6 This is a schematic diagram of the main structure of the crimping block provided by this utility model.

[0027] Figure 7 This is a top view of the pressing block provided by this utility model.

[0028] Figure label:

[0029] 1. Crimping fixture;

[0030] 11. Base; 12. Pressing block; 111. Guide hole; 112. Groove; 113. Pick-up slot; 114. Rounded corner; 121. Receiving slot; 122. Positioning hole; 1111. Large end; 1112. Small end;

[0031] 2. CPCI connector; 21. Backplane connector; 22. Press-fit housing; 211. Pins on the first side; 212. Pins on the second side;

[0032] 3. Circuit board. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0034] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of clarifying the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0036] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0038] The following is combined with Figures 1 to 7 The CPCI connector crimping fixture provided in this utility model will be described in detail through specific embodiments and application scenarios.

[0039] like Figure 4 , Figure 6 and Figure 7 As shown, this embodiment provides a CPCI connector crimping fixture 1, including: a base 11 and a crimping block 12.

[0040] The base 11 is used to place the circuit board 3 to be crimped with the backplane connector 21. The area on the base 11 corresponding to the backplane connector 21 is provided with multiple guide holes 111. Along the thickness direction of the base 11, the multiple guide holes 111 pass through the base 11. The multiple guide holes 111 are set one by one with the pin holes on the circuit board 3. The guide holes 111 are used for the pins 211 on the first side of the backplane connector 21 to pass through.

[0041] The crimping block 12 has a plurality of side-by-side receiving slots 121 on the side facing the backplane connector 21. The receiving slots 121 are used to receive the pins 212 on the second side of the backplane connector 21, so that the backplane connector 21 and the circuit board 3 are crimped together under the crimping force of the crimping block 12 on the backplane connector 21.

[0042] Understandably, such as Figure 1 , Figure 2 and Figure 3 As shown, the CPCI connector 2 includes a backplane connector 21 and a mating housing 22. When assembling the CPCI connector 2 with the circuit board 3, the backplane connector 21 and the mating housing 22 are installed from both sides of the circuit board 3 respectively. The pins 211 on the first side of the backplane connector 21 pass through the pin holes of the circuit board 3 and are inserted into the pin holes of the mating housing 22.

[0043] There is usually one circuit board 3. The circuit board 3 has a mounting area corresponding to the CPCI connector 2. There are usually multiple mounting areas, which are spaced apart.

[0044] In order to protect the pins 211 on the first side and the pins 212 on the second side when assembling the backplane connector 21 and the circuit board 3, this embodiment uses a crimping tool 1 for installation assistance during assembly.

[0045] The base 11 provides mounting support for the circuit board 3. Since the pins 211 on the first side of the backplane connector 21 are relatively long, they are prone to deformation, bending, or even breakage during the crimping process between the backplane connector 21 and the circuit board 3 after passing through the pin holes of the circuit board 3. Therefore, this embodiment provides multiple guide holes 111 on the base 11. Since the guide holes 111 correspond one-to-one with the pin holes of the circuit board 3, that is, multiple guide holes 111 correspond one-to-one with the first pins of the backplane connector 21, the first-side pins 211, passing through the pin holes of the circuit board 3, can extend into the corresponding guide holes 111 and continue to move forward along the depth direction of the guide holes 111 under the guidance of the guide holes 111. Because the guide holes 111 can guide and constrain the movement direction of the first-side pins 211, the first-side pins 211 can maintain a vertical position during movement, thereby avoiding deformation and bending of the first-side pins 211 during movement. Furthermore, since each pin 211 on the first side can extend into the corresponding guide hole 111 after passing through the circuit board 3, the adjacent pins 211 on the first side can move within their respective guide holes 111, thus avoiding interference between the adjacent pins 211 on the first side.

[0046] On the side of the circuit board 3 facing away from the base 11, this embodiment provides a crimping block 12 to assist in the installation of the backplane connector 21. Multiple receiving slots 121 are arranged side-by-side, each corresponding to a row of pins 212 on the second side. The multiple rows of receiving slots 121 can accommodate multiple rows of pins 212 on the second side. When the crimping block 12 is installed onto the backplane connector 21, all pins 212 on the second side of the backplane connector 21 extend into the receiving slots 121. The plane formed by the openings of the multiple receiving slots 121 abuts against the housing of the backplane connector 21. The pushing force on the crimping block 12 can be directly transmitted to the backplane connector 21 through the plane at the opening, preventing stress on the pins 212 on the second side of the backplane connector 21 and thus protecting the pins 212 on the second side. Specifically, the depth of the receiving slot 121 is less than the height of the crimping block 12. The portion of the crimping block 12 without the receiving groove 121 is positioned away from the backplate connector 21, and the force of the crimping device is applied to the solid portion of the crimping block 12. The solid portion of the crimping block 12 avoids deformation when subjected to force, while simultaneously transmitting the force to the portion with the receiving groove 121. This allows the force on the crimping block 12 to be transmitted through the solid portion, via the groove wall of the receiving groove 121, to the plane abutting against the housing of the backplate connector 21. This achieves precise transmission of the crimping device's force and protects the pins 212 on the second side from being shielded during the crimping process. The groove wall of the receiving groove 121 constrains the transmission path of the crimping force.

[0047] The CPCI connector crimping fixture 1 provided by this utility model assists in crimping during the assembly process of the backplane connector 21 and the circuit board 3. The crimping fixture 1 includes a base 11 and a crimping block 12. The base 11 supports the backplane connector 21 and is provided with a guide hole 111 to accommodate the pins 211 on the first side of the backplane connector 21. The crimping block 12 is provided with a receiving groove 121 to accommodate the pins 212 on the second side of the backplane connector 21. During the crimping process of the backplane connector 21 and the circuit board 3, the receiving groove 121 can protect the pins 212 on the second side of the backplane connector 21, and the guide hole 111 can protect and guide the pins 211 on the first side of the backplane connector 21. This ensures that the pins on both sides of the backplane connector 21 are protected during the crimping process, avoids pin deformation, and achieves reliability in the crimping process of the CPCI connector 2 and the circuit board 3.

[0048] like Figure 4 and Figure 5 As shown, the thickness of the base 11 in this embodiment is greater than the length of the pin 211 on the first side of the backplate connector 21 that protrudes from the circuit board 3.

[0049] Understandably, to ensure that the pins 211 on the first side of the backplane connector 21 are protected along their entire length, the thickness of the base 11 in this embodiment is greater than the length of the pins 211 on the first side of the backplane connector 21 that protrude from the circuit board 3. In other words, the length of the guide hole 111 is greater than the length of the pins 211 on the first side that protrude from the circuit board 3. The pins 211 on the first side of the backplane connector 21 pass through the pin holes of the circuit board 3 and extend into the guide holes 111, without protruding from the guide holes 111. This further ensures that after the pins 211 on the first side pass through the pin holes of the circuit board 3, they are constrained by their respective guide holes 111, preventing interference between adjacent pins.

[0050] Specifically, the length of the guide hole 111 is 0.18 to 0.22 mm longer than the length of the pin 211 on the first side of the backplane connector 21 that protrudes from the circuit board 3.

[0051] like Figure 6 and Figure 7 As shown, the crimping block 12 in this embodiment has positioning holes 122 on both sides of the inner wall of the backplate connector 21.

[0052] The inner wall of the backplate connector 21 has a positioning structure, the positioning hole 122 is adapted to the positioning structure and is set along the height direction of the crimping block 12.

[0053] Understandably, the crimp block 12 has positioning holes 122 on both sides, which can mate with the positioning structure of the backplane connector 21. When the crimp block 12 is installed onto the backplane connector 21, the positioning holes 122 can quickly position the crimp block 12 relative to the backplane connector 21, so that each row of pins 212 on the second side of the backplane connector 21 corresponds to each receiving slot 121, without the need for repeated adjustments to the relative positions of the pins and receiving slots 121 on site. The positioning holes 122 in this embodiment improve the assembly efficiency of the crimp block 12 and the backplane connector 21 and ensure the accuracy of the assembly.

[0054] like Figure 6 and Figure 7 As shown, in this embodiment, the two sides of the receiving groove 121 are arranged in parallel, and the bottom of the receiving groove 121 is arc-shaped.

[0055] Understandably, the parallel arrangement of the two sides of the receiving groove 121 creates a receiving space between the two sides to accommodate the pin 212 on the second side. The bottom of the receiving groove 121 is arc-shaped to prevent the tip of the inserted pin from contacting the receiving groove 121, thus providing an arc-shaped transition space for the tip of the pin 212 on the second side and ensuring protection for the tip of the pin 212 on the second side.

[0056] like Figure 4 and Figure 5 As shown, the guide hole 111 in this embodiment has a frustum structure.

[0057] The larger end 1111 of the frustum structure faces the circuit board 3, and the central axis of the frustum structure is coaxial with the central axis of the pin hole of the circuit board 3.

[0058] Understandably, the inner diameter of the guide hole 111 of the frustum structure is slightly larger at one end and slightly smaller at the other. The inner wall of the guide hole 111 is inclined relative to the central axis of the frustum structure. Since the larger end 1111 of the frustum structure faces the circuit board 3 and the smaller end 1112 of the frustum structure faces the side of the base 11 away from the circuit board 3, the diameter of the guide hole 111 gradually narrows along the thickness direction of the base 11. During the process of the first-side pin 211 extending into the guide hole 111, the first-side pin 211 is constrained and limited by the gradually narrowing circular hole, which is beneficial to the reliability and stability of the movement of the first-side pin 211 relative to the base 11.

[0059] like Figure 4 and Figure 5 As shown, in this embodiment, the diameter of the large end 1111 of the frustum structure is 0.18 mm to 0.22 mm larger than the pin 211 on the first side, and the diameter of the small end 1112 of the frustum structure is 0 mm to 0.02 mm larger than the pin 211 on the first side.

[0060] Understandably, the diameter of the larger end 1111 of the frustum structure can be 0.18 mm, 0.2 mm, or 0.22 mm larger than the pin 211 on the first side. The diameter of the smaller end 1112 of the frustum structure can be 0 mm, 0.01 mm, or 0.02 mm larger than the pin 211 on the first side.

[0061] In one example, the diameter of the pins of CPCI connector 2 is 0.6 mm. The diameter of the large end 1111 of the frustum structure in this embodiment can be 0.78 mm, 0.8 mm, or 0.82 mm. The diameter of the small end 1112 of the frustum structure in this embodiment can be 0.6 mm, 0.61 mm, or 0.62 mm.

[0062] like Figure 4 As shown, the base 11 of this embodiment has a groove 112 on the side facing the circuit board 3, and the groove 112 is used to hold the circuit board 3.

[0063] Understandably, the inner wall of the groove 112 is the same size as the circuit board 3, which can hold the circuit board 3 in the groove 112, ensuring that the circuit board 3 will not wobble during the pressing process with the backplate connector 21, and also ensuring that the pin holes on the circuit board 3 correspond one-to-one with the guide holes 111 on the base 11.

[0064] like Figure 4 As shown, the base 11 in this embodiment has a pickup slot 113 on the side facing the circuit board 3.

[0065] The pickup slot 113 extends perpendicularly to the groove 112. When the circuit board 3 is installed in the groove 112, the two ends of the pickup slot 113 are exposed on opposite sides of the circuit board 3.

[0066] Understandably, after the circuit board 3 is crimped with the backplate connector 21, the circuit board 3 and the base 11 are in close contact due to the crimping force, making it difficult to remove the circuit board 3 from the base 11. The pickup slot 113 can accommodate the operator's fingers, allowing the operator to pry the circuit board 3 with their fingers, thus facilitating the quick removal of the circuit board 3 from the base 11 and enabling subsequent assembly of the circuit board 3 with the pressure shell 22.

[0067] like Figure 4 As shown, this embodiment has multiple pickup slots 113, which are spaced apart.

[0068] Understandably, multiple pickup slots 113 are provided, which allows multiple fingers to be inserted into multiple pickup slots 113 when the circuit board 3 is long, so as to remove the circuit board 3 from the base 11, thereby improving the efficiency of removing the circuit board 3 from the base 11.

[0069] like Figure 4 As shown, the groove 112 in this embodiment is provided with a rounded corner 114 at the corner where it is fitted onto the circuit board 3.

[0070] Understandably, since the groove 112 and the circuit board 3 are the same size, the four corners of the circuit board 3 are easily damaged at the connection points with the groove 112. To protect the four corners of the circuit board 3, this embodiment provides rounded corners 114 at the corners where the groove 112 and the circuit board 3 are fitted together. The rounded corners 114 prevent the connection between the circuit board 3 and the groove 112 from being completely locked, leaving a gap. During the crimping process between the circuit board 3 and the backplate connector 21, the force on the corners of the circuit board 3 can be absorbed by the gaps in the rounded corners 114, ensuring the integrity of the four corners of the circuit board 3 during the crimping process.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A CPCI connector crimping fixture, characterized in that, include: A base is used to place a circuit board to be crimped with a backplane connector. The base has multiple guide holes in the area corresponding to the backplane connector. The multiple guide holes pass through the base along the thickness direction. The multiple guide holes are arranged one-to-one with the pin holes on the circuit board. The guide holes are used for the pins on the first side of the backplane connector to pass through. A crimping block has multiple side-by-side receiving slots on the side facing the backplane connector. The receiving slots are used to receive pins on the second side of the backplane connector so that the backplane connector is crimped to the circuit board under the crimping force of the crimping block on the backplane connector.

2. The CPCI connector crimping fixture according to claim 1, characterized in that, The thickness of the base is greater than the length of the pins on the first side of the backplate connector that protrude from the circuit board.

3. The CPCI connector crimping fixture according to claim 1, characterized in that, The crimping block has positioning holes on both sides facing the inner wall of the backplate connector; The inner wall of the backplate connector has a positioning structure, the positioning hole is adapted to the positioning structure and is arranged along the height direction of the crimping block.

4. The CPCI connector crimping fixture according to claim 1, characterized in that, The walls of the receiving groove are arranged parallel to each other, and the bottom of the receiving groove is arc-shaped.

5. The CPCI connector crimping fixture according to claim 1, characterized in that, The guide hole has a frustum structure; The larger end of the frustum structure faces the circuit board, and the central axis of the frustum structure is coaxial with the central axis of the pin hole of the circuit board.

6. The CPCI connector crimping fixture according to claim 5, characterized in that, The diameter of the larger end of the frustum structure is 0.18 mm to 0.22 mm larger than the pin on the first side, and the diameter of the smaller end of the frustum structure is 0 mm to 0.02 mm larger than the pin on the first side.

7. The CPCI connector crimping fixture according to claim 1, characterized in that, The base has a groove on the side facing the circuit board, the groove being used to hold the circuit board in place.

8. The CPCI connector crimping fixture according to claim 7, characterized in that, The base has a pickup slot on the side facing the circuit board; The pickup slot extends perpendicularly to the groove. When the circuit board is installed in the groove, both ends of the pickup slot are exposed on opposite sides of the circuit board.

9. The CPCI connector crimping fixture according to claim 8, characterized in that, The pickup slots are provided in multiple ways, and the multiple pickup slots are arranged at intervals.

10. The CPCI connector crimping fixture according to claim 7, characterized in that, The groove is provided with a rounded corner at the corner where it is fitted onto the circuit board.

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