Cable connector
By using a spring structure for both signal lines and ground contacts in coaxial cable connectors, the challenges of miniaturization and signal loss are addressed, achieving wideband high-frequency characteristics with consistent and uniform performance.
Patent Information
- Application Number
- PCT/KR2024/016737
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-04-17
- Filing Date
- 2024-10-30
- Publication Date
- 2025-06-26
AI Technical Summary
Conventional coaxial cable connectors face challenges in miniaturization due to space occupied by connectors and experience signal loss when the gap between connectors is narrowed, affecting wideband high-frequency characteristics.
Implementing both signal lines and ground contacts of the cable connector with a spring structure, replacing internal pogo pin signal lines with external springs, and ensuring individual ground contacts to address irregularities in substrate flatness.
This solution enables a cable connector suitable for wideband high-frequency characteristics by maintaining consistent contact points and positions, reducing signal loss, and ensuring uniform performance across different substrate conditions.
Smart Images

Figure KR2024016737_26062025_PF_FP_ABST
Abstract
Description
cable connector
[0001] The present invention relates to a cable connector, and more specifically, to a technology for providing a cable connector suitable for implementing wideband high-frequency characteristics by implementing both the signal line and ground contact of the cable connector as a spring structure.
[0002]
[0003] Coaxial cables can transmit electrical signals ranging from low to high frequencies, including direct current, and are widely used in a variety of fields, including electronics and communications. Because coaxial cables possess superior high-frequency characteristics and have a higher withstand voltage than other cables, they enable power transmission through their coaxial core, making them ideal for large-capacity data transmission and broadband signal transmission.
[0004] And in electronic or communication devices such as mobile communication repeaters or high-frequency measuring equipment, connectors are provided at the contact points to connect boards with built-in components to other boards, or to bring boards into contact with cables. In particular, recently, in order to apply coaxial cables, which have low signal loss of the cable itself, can be applied regardless of the frequency band, and the diameter of the cables is becoming smaller due to the development of manufacturing technology, connectors for coaxial cables consisting of plugs and receptacles are being used, and at the same time, in order to transmit a large amount of data at a high speed, the above coaxial cables are arranged in multiples, and a connector is individually connected to the end of each coaxial cable.
[0005] Conventionally, connecting multiple coaxial cables to a board required individual connections, which was cumbersome and time-consuming during the device assembly process. Furthermore, because the connectors for each coaxial cable had to be spaced apart, the space taken up by the connectors limited the miniaturization of the device. Furthermore, narrowing the spacing between connectors to miniaturize the device also limited the possibility of signal loss due to adjacent coaxial cables. Therefore, there were limitations to narrowing the spacing between connectors below a certain level.
[0006] Therefore, conventional connectors for coaxial cables not only have difficulty in narrowing the gap between coaxial cables, but also have the problem of causing signal loss when the gap is narrowed.
[0007] To solve these problems, multi-coaxial cable connector technology has been proposed.
[0008] In the case of a multi-coaxial cable connector according to the prior art, when a pogo pin signal line is used, the length of the signal line becomes longer due to the internal spring, and there is a problem that the contact point of the internal spring is not constant, and the substrate contact position is not constant, which is a problem that has a detrimental effect on the wideband high-frequency characteristics.
[0009] Furthermore, conventional multi-coaxial cable connectors implement simultaneous ground contacts via a reference plate. However, in the case of simultaneous ground contacts, there is a problem in that contact conditions vary depending on the substrate flatness, resulting in uneven performance. This also adversely affects broadband high-frequency characteristics.
[0010]
[0011] The present invention has been devised to solve the problems of the prior art as described above, and aims to implement a cable connector suitable for implementing wideband high-frequency characteristics.
[0012] When using a conventional pogo pin signal line, the length of the signal line becomes longer due to the internal spring of the pogo pin, and there is a problem that the contact point of the internal spring is not constant, and the contact position of the substrate is not constant, which is a problem that is detrimental to the wideband high-frequency characteristics.
[0013] Conventional technologies implement simultaneous ground contact through a reference plate. However, simultaneous ground contacts suffer from the problem of uneven performance due to contact conditions varying with substrate flatness. This also negatively impacts broadband high-frequency characteristics.
[0014] The purpose of the present invention is not limited to what has been described above, and other purposes and advantages of the present invention that are not mentioned can be understood by the following description.
[0015]
[0016] An embodiment of a cable connector according to the present invention may include a cable assembly including a cable necking part, which includes a necking spring that grips and supports the outer side of a cable when the cable is coupled and is supported at an upper side by a housing unit, and movement of which is controlled by the necking spring; and a connector part spring whose upper side is connected to a lower side of the cable necking part and whose upper side is supported by the housing unit, a center pin that is connected to a signal line of the cable and whose movement is controlled by the cable necking part, and a connector that is electrically connected to a ground contact and whose movement is controlled by the connector part spring; and a cable holder body that includes a first guide partition that supports the cable necking part and whose lower surface is in contact with an upper side of the necking spring, and a second guide partition that supports the cable connector part and whose lower surface is in contact with an upper side of the connector part spring, and which supports the cable assembly, and which may include the housing unit that supports the cable assembly.
[0017] As an example, the cable neck ring portion may include a neck ring lower body that grips and supports the outer side of the cable; and a neck ring spring that is mounted on the outer side of the neck ring lower body and presses the neck ring lower body while being supported on the upper side by the housing unit, and the cable connector portion may include a center pin that is connected to the signal line of the cable; a connector body through which the center pin is inserted and penetrates; a connector that is mounted on the lower side of the connector body through which the center pin penetrates and is electrically connected to a ground contact; and a connector spring that is mounted on the outer side of the connector body and presses the connector while being supported on the upper side by the housing unit.
[0018] As an example, the cable connector portion may further include a fixed support member mounted on the outside of the center pin to maintain the position of the center pin so that the center pin does not come into contact with the connector portion body and the contactor.
[0019] As an example, the cable connector part may have the connector part body pressed by the neck ring spring, and the connector part may be pressed by the connector part spring.
[0020] As an example, the cable connector portion may further include an elastic plate disposed between the connector portion body and the contactor to maintain a ground connection between the connector portion body and the contactor.
[0021] As an example, the cable connector portion further includes a guide groove formed to be open from the lower end of the connector portion body toward the upper end; and a guide protrusion formed to protrude outwardly at the upper end of the connector and inserted into the guide groove, wherein the guide protrusion can guide movement of the connector along the guide groove.
[0022] As an example, the housing unit may further include a cable upper holder coupled to the upper end of the cable holder body to support the cable; a housing cover into which the cable holder body with the cable assembly mounted is inserted and mounted; and a reference plate mounted on the lower end of the housing cover to support the cable assembly.
[0023] As an example, the cable holder body has one side open, a neck ring mounting groove is provided between a plurality of the first guide partition walls, and a connector mounting groove is provided between a plurality of the second guide partition walls, and the cable neck ring portion and the cable connector portion of the cable assembly can be inserted and mounted in the neck ring mounting groove and the connector mounting groove.
[0024] As an example, the upper cable holder has an open side stop portion, and a cable grip portion of the cable holder body is fitted into the side stop portion of the upper cable holder, so that the cable can be gripped by the combination of the upper cable holder and the cable grip portion.
[0025] As an example, the cable holder body may further include an alignment pin that protrudes from the lower portion and has directionality.
[0026]
[0027] According to the present invention, by implementing both the signal line and the ground contact of the cable connector as a spring structure, a cable connector suitable for implementing wideband high-frequency characteristics can be provided.
[0028] In particular, by replacing the internal signal line pogo pin of the cable connector with an external spring structure, the length of the signal line becomes longer through the internal spring of the pogo pin when using the existing pogo pin signal line, and the problem of the internal spring's contact point being uneven can be solved, and the problem of the substrate contact position being uneven can be solved.
[0029] In addition, in the present invention, since each cable assembly of the cable connector forms an individual ground contact, the problem of not implementing uniform performance due to contact under different conditions due to irregularities in substrate flatness in the case of the prior art by implementing simultaneous ground contact through a reference plate can be solved, and the problem of adversely affecting wideband high-frequency characteristics can be solved through this.
[0030] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.
[0031]
[0032] Figure 1 illustrates one embodiment of a cable connector according to the present invention.
[0033] Figure 2 illustrates an exploded perspective view of one embodiment of a cable connector according to the present invention.
[0034] FIG. 3 illustrates an exploded view of one embodiment of the cable holder body and the cable upper holder in the present invention.
[0035] FIG. 4 illustrates a joint diagram of one embodiment of a cable holder body and a cable upper holder in the present invention.
[0036] Figure 5 illustrates one embodiment of a reference plate in the present invention.
[0037] FIG. 6 illustrates an embodiment of a mounting structure of a cable assembly to a housing in a cable connector according to the present invention.
[0038] FIG. 7 illustrates an exploded perspective view of one embodiment of a cable assembly in a cable connector according to the present invention.
[0039] Figure 8 illustrates one embodiment of a cable neck ring portion in a cable connector according to the present invention.
[0040] Fig. 9 illustrates one embodiment of a cable connector portion in a cable connector according to the present invention.
[0041] Figure 10 illustrates a state before an embodiment of a cable connector according to the present invention is mounted on a substrate.
[0042] Figure 11 illustrates an embodiment of a cable connector according to the present invention mounted on a substrate.
[0043] Figure 12 illustrates the change in length before and after substrate mounting for one embodiment of a cable connector according to the present invention.
[0044]
[0045] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings, but the present invention is not limited or restricted by the embodiments.
[0046] In order to explain the present invention, its operational advantages, and the purpose achieved by the practice of the present invention, preferred embodiments of the present invention are exemplified and examined with reference thereto below.
[0047] First, the terms used in this application are only used to describe specific embodiments and are not intended to limit the present invention, and the singular expression may include plural expressions unless the context clearly indicates otherwise. In addition, it should be understood that the terms "comprise" or "have" in this application are intended to specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, and do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.
[0048] In describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.
[0049]
[0050] The present invention relates to a technology for providing a cable connector suitable for implementing wideband high-frequency characteristics by implementing both the signal line and ground contact of the cable connector as a spring structure.
[0051]
[0052] FIG. 1 illustrates one embodiment of a cable connector according to the present invention, and FIG. 2 illustrates an exploded perspective view of one embodiment of a cable connector according to the present invention.
[0053] (a) of the above Fig. 1 illustrates a situation before the cable connector (10) is mounted on the substrate (S), and (b) of the above Fig. 1 illustrates a situation in which the cable connector (10) is mounted on the substrate (S).
[0054] The cable connector (10) may roughly include a housing unit (100), a housing screw (150), a cable assembly (200), etc.
[0055] The housing unit (100) may include a cable holder body (110), a cable upper holder (120), a housing cover (130), a reference plate (140), etc.
[0056] The cable holder body (110) and the cable upper holder (120) can be coupled to each other to support the cable assembly (200).
[0057] With respect to the cable holder body (110) and the cable upper holder (120), FIG. 3 illustrates an isolated view of one embodiment of the cable holder body and the cable upper holder in the present invention, and FIG. 4 illustrates a combined view of one embodiment of the cable holder body and the cable upper holder in the present invention, and the description will be made with reference to FIG. 3 and FIG. 4 together.
[0058] A cable assembly (200) can be mounted on the cable holder body (110).
[0059] As an example, the cable holder body (110) may be formed so that one side is open so that the cable assembly (200) can be mounted on the open side, and one side of the cable (50) can be wrapped along the length direction.
[0060] As an example, the cable holder body (110) may be provided with guide partitions (111, 113) corresponding to a plurality of cable assemblies (200).
[0061] The guide bulkheads (111, 113) may include a first guide bulkhead (111) and a second guide bulkhead (113) corresponding to the cable neck portion (300) and the cable connector portion (400) of the cable assembly (200). A plurality of guide bulkheads (111, 113) may be provided corresponding to the number and mounting positions of the cable assemblies (200) to be mounted.
[0062] A neck ring mounting groove (112) is provided between a plurality of first guide bulkheads (111) into which a cable neck ring (300) of a cable assembly (200) is inserted and mounted, and the neck ring mounting groove (112) can be provided to correspond to the shape of the cable neck ring (300).
[0063] In addition, a connector mounting groove (114) is provided between a plurality of second guide bulkheads (113) into which a cable connector portion (400) of a cable assembly (200) is inserted and mounted, and the connector mounting groove (114) can be provided to correspond to the shape of the cable connector portion (400).
[0064] A cable grip portion (115) may be provided at the top of the cable holder body (110). The cable grip portion (115) may include a first cable holding partition (116). A first cable mounting groove (117) may be provided between a plurality of first cable holding partitions (111) into which a cable (50) is inserted and supported.
[0065] The cable holder body (110) is provided with screw fastening holes (118) at both ends, so that when the cable upper holder (120) is installed, the screw fastening holes (118) of the cable holder body (110) and the screw fastening holes (128) of the cable upper holder (120) can be connected with screws (160).
[0066] The cable upper holder (120) can be fastened and connected to the cable grip portion (115) provided on the upper part of the cable holder body (110).
[0067] As an example, the cable upper holder (120) has one side open, so that the open surface of the cable grip portion (115) of the cable holder body (110) and the open surface of the cable upper holder (120) can be brought into contact with each other and joined.
[0068] As an example, the upper cable holder (120) is formed with a wider area than the upper surface of the cable holder body (110), and the side stop portion of the upper cable holder (120) is opened so that the open surface of the cable grip portion (115) of the cable holder body (110) is inserted into the opening surface, so that the upper cable holder (120) and the cable grip portion (115) of the cable holder body (110) can be combined.
[0069] The cable upper holder (120) may include a second cable holding partition (121). A second cable mounting groove (122) may be provided between a plurality of second cable holding partitions (121) into which a cable (50) is inserted and fixed.
[0070] The cable (50) can be supported by fastening and joining the cable grip portion (115) and the cable upper holder (120) so that the first cable mounting groove (117) provided in the cable grip portion (115) of the cable holder body (110) and the second cable mounting groove (122) provided in the cable upper holder (120) correspond to each other.
[0071] A cable assembly support wall (123) may be provided at the bottom of the cable upper holder (120). The cable assembly support wall (123) may extend to a position corresponding to the first guide partition (111) of the cable holder body (110) to prevent the cable assembly (200) mounted in the neck ring mounting groove (112) from being detached.
[0072] In this embodiment, the cable assembly support wall (123) is illustrated and described in a planar form, but may be modified to be formed in a shape corresponding to the first guide partition wall (111) or the second guide partition wall (113) of the cable holder body (110) as needed, so that one side of the cable neck ring portion (300) or the cable connector portion (400) of the cable assembly (200) is inserted therein.
[0073] The cable assembly support wall (123) of the cable upper holder (120) may be extended to a position corresponding to the second guide bulkhead (113) of the cable holder body (110) as needed.
[0074] A housing screw through hole (125) may be provided at both ends of the cable upper holder (120), and a housing screw (150) may be fastened to pass through the housing screw through hole (125) at the end.
[0075] Screw fastening holes (128) may be provided at both ends of the upper cable holder (120) corresponding to the screw fastening holes (118) of the cable holder body (110). The cable holder body (110) and the upper cable holder (120) may be coupled via screws (160). The number and positions of the screw fastening holes (118) of the cable holder body (110) and the screw fastening holes (128) of the upper cable holder (120) may be appropriately changed as needed. In addition, the coupling method between the cable holder body (110) and the upper cable holder (120) may be modified in various ways other than screw coupling.
[0076] Furthermore, an alignment pin (170) may be mounted so as to protrude from the lower portion of the cable holder body (110). The alignment pin (170) has directionality and may protrude downward by a certain degree and be mounted in an alignment fastening hole (35) provided in the substrate (S). As an example, the alignment pin (170) may be mounted so as to be offset by a certain degree from the center of both lower ends of the cable holder body (110), thereby having directionality.
[0077] The number and position of the alignment pins (170) can be changed as needed, and the alignment pins (170) are optional and can be omitted depending on the situation.
[0078] A case holder insertion space (131) is provided facing downward at the upper part of the housing cover (130), and a cable holder body (110) equipped with a cable assembly (200) can be inserted and mounted into the case holder insertion space (131).
[0079] As an example, the lower part of the cable holder body (110) equipped with the cable assembly (200) is inserted into the case holder insertion space (131) of the housing cover (130), and the cable holder body (110) can be placed on the upper part of the housing cover (130) in a state where the cable grip part (115) and the cable upper holder (120) are combined.
[0080] A reference plate insertion space (not shown) is provided at the lower portion of the housing cover (130) facing upward, and a reference plate (140) can be inserted and mounted into the reference plate insertion space.
[0081] FIG. 5 illustrates one embodiment of a reference plate in the present invention, and will be described with reference to FIG. 5.
[0082] A cable assembly support space (141) in which the lower part of the cable assembly (200) is supported and secured may be provided in the reference plate (140).
[0083] The lower surface of the cable holder body (110) equipped with the cable assembly (200) is supported by being in contact with the upper circumferential surface of the reference plate (140), and the lower portion of the cable connector portion (400) of the cable assembly (200) can be inserted into the cable assembly support space (141) of the reference plate (140).
[0084] An alignment hole (148) through which an alignment pin (170) passes may be provided at both ends of the reference plate (140). In addition, a fastening hole (149) for fastening with a cable holder body (110) may be provided at both ends of the reference plate (140). A pin hole (141) may be provided on the bottom surface of the reference plate (140) so that the end of the cable connector portion (400) protrudes outward and can come into contact with a terminal (20) provided on the substrate (S).
[0085] The housing cover (130) may be provided with screw holes (135) at both ends into which housing screws (150) are inserted and fastened.
[0086] The housing screw (150) can be inserted and mounted into the screw hole (135) of the housing cover (130) with the screw spring (155) mounted thereon. A spring support hole (not shown) can be provided on the inside of the screw hole (135) through which the housing screw (150) passes and the screw spring (155) is supported.
[0087] A screw groove (145) that supports the mounting of a housing screw (150) may be provided at both ends of the reference plate (140). The housing screw (150) is fastened with a fixing nut (40) mounted in a screw nut hole (31) provided in a substrate (S) on which the cable connector (10) is mounted, and the cable connector (10) can be fixedly mounted on the substrate (S) through the housing screw (150).
[0088] As an example, when the housing screw (150) is fastened to the fixing nut (40) of the substrate (S) and the cable connector (10) is pressed so that it comes into contact with the substrate (S), the cable assembly (200) of the cable connector (10) is supported by the housing screw (150) and is pressed so that it comes into contact with the terminal (20) provided on the substrate (S) and can be electrically connected.
[0089] FIG. 6 illustrates an embodiment of a mounting structure of a cable assembly to a housing in a cable connector according to the present invention.
[0090] The cable assembly (200) can be mounted on the cable holder body (110) with the cable (50) connected.
[0091] As an example, the cable neck ring portion (300) of the cable assembly (200) can be inserted and mounted by fitting into a neck ring portion mounting groove (112) provided between the first guide partitions (111) of the cable holder body (110), and the cable connector portion (400) of the cable assembly (200) can be inserted and mounted by fitting into a connector portion mounting groove (114) provided between the second guide partitions (113) of the cable holder body (110).
[0092] The cable necking portion (300) can be supported by the first guide partition (111) of the cable holder body (110), and the cable connector portion (400) can be supported by the second guide partition (113) of the cable holder body (110).
[0093] As an example, a cable (50) can be inserted and mounted into a first cable mounting groove (117) provided between the first cable holding bulkheads (116) of the cable grip section (115) of the cable holder body (110).
[0094] The cable upper holder (120) can be coupled to the cable grip portion (115) of the cable holder body (110) so that the first cable holding bulkhead (116) provided in the cable grip portion (115) of the cable holder body (110) and the second cable holding bulkhead (121) provided in the cable upper holder (120) correspond to each other.
[0095] The first cable mounting groove (117) between the first cable holding bulkhead (116) and the second cable mounting groove (122) between the second cable holding bulkhead (121) are in contact to form a cable mounting hole, through which the cable (50) can be supported.
[0096] Additionally, the cable assembly (200) mounted on the cable holder body (110) can be prevented from coming off by the cable assembly support wall (123) of the cable upper holder (120).
[0097] The operation according to the mounting of the cable connector (10) on the substrate (S) will be described in detail through the following examples.
[0098] A cable assembly (200) is connected to a cable (50), and a plurality of cable assemblies may be provided corresponding to terminals (20) provided on a substrate (S).
[0099] The cable assembly (200) may include a cable necking portion (300) and a cable connector portion (400).
[0100] FIG. 7 illustrates an exploded perspective view of one embodiment of a cable assembly in a cable connector according to the present invention.
[0101] The cable assembly (200) may include a cable neck portion (300) to which the cable (50) is connected and a cable connector portion (400) equipped with a center pin (420) to which the signal line (51) of the cable (50) is connected.
[0102] In relation to the cable necking part (300), an embodiment of the cable necking part in the cable connector according to the present invention illustrated in FIG. 8 will be examined together with reference to the same.
[0103] The cable neck ring (300) may include a neck ring upper body (310), a neck ring lower body (350), a neck ring spring (330), etc.
[0104] The neck ring upper body (310) may be a cylindrical shape with a perforated interior, and may be provided with a cable mounting hole (315) through which a cable (50) may pass. The upper end of the neck ring upper body (310) may be provided with an outwardly protruding and expanded neck ring upper flange (311).
[0105] The lower body (350) of the neck ring may be a cylindrical shape with a hole through the inside, and a cable mounting hole (355) may be provided so that a cable (50) can pass through it.
[0106] A neck ring spring (330) can be mounted on the outside of the neck ring lower body (350).
[0107] The lower part of the neck ring lower body (350) is provided with a neck ring lower flange (351) that protrudes outward and is extended, and when the neck ring spring (330) is fastened on the neck ring lower body (350), the lower part of the neck ring spring (330) can be supported by the neck ring lower flange (351).
[0108] The cable (50) can be sequentially inserted into the upper body (310) of the neck ring and the lower body (350) of the neck ring and mounted on the cable neck ring portion (300).
[0109] The signal line (51) of the cable (50) may protrude to a certain level from the lower outer side of the cable neck ring (300).
[0110] In relation to the cable connector portion (400), an embodiment of the cable connector portion in the cable connector according to the present invention illustrated in FIG. 9 will be examined together with reference to the cable connector portion.
[0111] The cable connector portion (400) may include an upper ring (410), a center pin (420), a connector portion body (430), a connector portion spring (440), an O-ring (450), an elastic plate (460), a contactor (470), etc.
[0112] The connector body (430) is a cylindrical shape with a perforated interior, and a center pin insertion space (435) is provided therein so that a center pin (420) can be inserted and mounted.
[0113] A fixed support (480) can be mounted on the center pin (420).
[0114] As an example, a fixed support mounting groove (421) is provided in the middle of the center pin (420), and a fixed support (480) can be mounted in the fixed support mounting groove (421).
[0115] When the center pin (420) is inserted into the center pin insertion space (435) of the connector body (430), the fixed support (480) comes into contact with the inner wall of the connector body (430) so that the center pin (420) can maintain its central position on the center pin insertion space (435) of the connector body (430). In particular, the fixed support (480) separates the center pin (420) from the inner wall of the connector body (430) so that the center pin (420) does not come into contact with the connector body (430) and the contactor (470).
[0116] The upper part of the center pin (420) can be in contact with the signal line (51) of the cable (50). As an example, a signal line connecting portion (423) into which the signal line (51) of the cable (50) is inserted can be provided on the upper part of the center pin (420).
[0117] A connector flange (431) that protrudes outward and is extended may be provided at the top of the connector body (430). The center pin insertion space (435) may be formed in multiple stages corresponding to the connector flange (431).
[0118] The upper ring (410) may be a cylindrical shape with a perforated interior and a space (415) above the center pin may be provided. The upper ring (410) may be provided with an upper ring flange (411) that protrudes outward and is extended at the top.
[0119] It is inserted and mounted on the upper part of the center pin insertion space (435) of the connector body (430), and the flange of the upper ring (410) can be fixed in position by being caught on the multi-stage center pin insertion space (435). The upper ring (410) can be inserted and mounted in the center pin insertion space (435) to prevent the center pin (420) from coming off.
[0120] As an example, the diameter of the upper space (415) of the center pin of the upper ring (410) may be larger than the diameter of the center pin (420) and smaller than the width of the fixed support (480). Accordingly, the inner surface of the upper ring (410) may not come into contact with the center pin (420) and may be kept apart, so that the fixed support (480) may be caught on the lower surface of the upper ring (410) to prevent the center pin (420) from coming off. A connector spring (440) may be mounted on the outside of the connector body (430).
[0121] A connector (470) can be coupled and mounted at the bottom of the connector body (430).
[0122] The upper part of the connector (470) can be inserted and mounted at the bottom of the center pin insertion space (435) of the connector body (430).
[0123] A guide groove (437) of a certain length may be provided at the lower portion of the connector body (430) from the lower end of the connector body (430) toward the upper portion. A plurality of guide grooves (437) may be provided spaced apart from each other at the lower portion of the connector body (430).
[0124] When the upper part of the connector (470) is inserted into the lower part of the center pin insertion space (435) of the connector body (430), the guide groove (437) opens to facilitate insertion of the connector (470) into the connector body (430).
[0125] The O-ring (450) can be fitted and mounted on the lower outer side of the connector body (430).
[0126] The upper part of the connector (470) is inserted into the lower part of the connector body (430) and fitted, and the O-ring (450) is fastened so that the guide groove (437) of the connector body (430) can be tightened.
[0127] The contactor (470) may have a pin movement hole (475) formed therein to support the movement of the end of the center pin (420). The contactor (470) may be formed of a conductive material and may maintain a distance from the center pin (420). The contactor (470) may be electrically connected to a ground contact. That is, the center pin (420) may be maintained in a state where it does not come into contact with the contactor (470) on the internal pin movement hole (475) of the contactor (470).
[0128] The connector (470) is pushed downward by the elastic force of the connector spring (440), and accordingly, when the cable connector (10) is not mounted on the board (S), the end of the center pin (420) can be stored inside the pin movement hole (475) of the connector (470).
[0129] As an example, a guide protrusion (473) may be provided at the top of the contactor (470). The guide protrusion (473) of the contactor (470) is fitted into the guide groove (437) of the connector body (430), so that when the contactor (470) moves upward, the guide protrusion (473) moves along the guide groove (437) to guide the movement of the contactor (470).
[0130] An elastic plate (460) may be placed on the upper surface of the connector (470) on the lower part of the center pin insertion space (435) of the connector body (430).
[0131] As an example, the elastic plate (460) may be a circular ring-shaped plate spring, some of which are bent upward and some of which are bent downward. When the contactor (470) is mounted on the connector body (430), a ground connection can be stably maintained between the connector body (430) and the contactor (470) through the elastic plate (460).
[0132] The connector (470) may be provided with an extended connector extension (471) that protrudes outward. The lower end of the connector (470) may be pushed by the elastic force of the connector spring (440) to pass through the pin hole (141) provided on the bottom surface of the reference plate (140) and be exposed to the outside. The connector extension (471) has an area wider than the diameter of the pin hole (141), and the contact extension (471) may be brought into contact with the bottom surface of the reference plate (140) to limit the lower end of the connector (470) from being exposed to the outside of the pin hole (141) by a certain level or more.
[0133] Figures 10 to 12 illustrate operation diagrams of one embodiment of a cable connector according to the present invention.
[0134] The above Fig. 10 shows a state before the cable connector (10) is mounted on the substrate (S), and the above Fig. 11 shows a state after the cable connector (10) is mounted on the substrate (S). (a) of the above Fig. 12 shows the length of the cable connector (10) according to the present invention before mounting on the substrate (S), and (b) of the above Fig. 12 shows the change in length after mounting on the substrate (S) the cable connector (10) according to the present invention.
[0135] The upper side of the neck ring spring (330) is supported by being in contact with the first guide bulkhead (111) of the cable holder body (110), and the lower side of the neck ring spring (330) can be in contact with the neck ring lower flange (351) provided in the neck ring lower body (350) of the cable neck ring part (300).
[0136] The upper side of the connector spring (440) is supported by being in contact with the second guide partition (113) of the cable holder body (110), and the lower side of the connector spring (440) is in contact with the O-ring (450) of the cable connector (400), and elastic force can be applied to the connector extension (471) of the connector (470).
[0137] Before the cable connector (10) is mounted on the substrate (S), the cable necking portion (300) can be pushed downward and lowered by the elastic force of the necking spring (330). The upper portion of the cable connector portion (400) connected to the cable necking portion (300) can also be lowered along with the lowering of the cable necking portion (300).
[0138] Since the connector flange (431) provided at the upper end of the connector body (430) of the cable connector portion (400) is caught on the second guide bulkhead (113) of the cable holder body (110), the descending distance of the upper end of the cable neck ring portion (300) and the cable connector portion (400) due to the elastic force of the neck ring spring (330) can be limited.
[0139] At this time, the length of the neck ring spring (330) may be S21.
[0140] In addition, the lower part of the cable connector part (400) is pushed down by the elastic force of the connector part spring (440). More specifically, the connector (470) can be pushed down by the elastic force of the connector part spring (440) as the O-ring (450) is pushed down.
[0141] As an example, the guide protrusion (473) of the contactor (470) can move along the guide groove (437) of the connector body (430) so that the contactor (470) can descend.
[0142] As the contactor (470) descends, the lower end of the contactor (470) can be exposed to the outside through a pin hole (141) provided on the bottom surface of the reference plate (140).
[0143] Since the connector extension (471) provided at the stop of the connector (470) is in contact with the bottom surface of the plate (140) and is caught, the lowering distance of the lower portion of the cable connector portion (400) due to the elastic force of the connector portion spring (440) can be limited. That is, the length of the lower end of the connector (470) that passes through the pin hole (141) and is exposed to the outside can be adjusted to a certain distance D1, and the lower end of the center pin (420) can be maintained in a state of being inserted and stored inside the pin movement hole (475) of the connector (470) by a certain distance D2 from the lower end of the connector (470).
[0144] At this time, the length of the connector spring (440) may be S11.
[0145] As the cable connector (10) is mounted on the substrate (S), the lower end of the connector (470) can be pressed upwards by making contact with the substrate (S). The connector (470) can be pressed upwards by a maximum distance D1 until the reference plate (140) makes contact with the substrate (S).
[0146] As an example, the guide protrusion (473) of the contactor (470) may move along the guide groove (437) of the connector body (430) so that the contactor (470) may rise.
[0147] As the contactor (470) rises, the connector spring (440) can be pressurized by the contactor extension (471) provided at the stop of the contactor (470).
[0148] When the connector (470) rises by the maximum rising distance D1, the connector spring (440) can be compressed from the normal length S11 to a length S12 that is shortened by D1.
[0149] When the lower end of the contactor (470) is pressed, the contactor (470) rises by a certain distance D1, and the lower end of the center pin (420) stored inside the pin movement hole (475) of the contactor (470) comes into contact with the substrate (S) and is pressed by the substrate (S) to rise.
[0150] The lower end of the center pin (420) can rise to a maximum rising distance D3 which is shorter by D2 than the maximum rising distance D1 of the contactor (470).
[0151] As the center pin (420) rises, the upper portion of the cable connector portion (400) and the cable neck ring portion (300) can rise. As the cable neck ring portion (300) rises, the neck ring spring (330) can be pressurized by the neck ring lower flange (351) provided on the neck ring lower body (350).
[0152] When the lower end of the center pin (420) rises by the maximum rising distance D3, the neck ring spring (330) can be compressed from the normal length S21 to a length S22, which is shortened by D3.
[0153] In this way, in the present invention, both the signal line and ground contact of the cable connector can be implemented as a spring structure.
[0154] When using the existing pogo pin signal line, the length of the signal line becomes longer due to the internal spring, and there is a problem that the contact point of the internal spring is not constant, and the contact position of the substrate is not constant, which is a problem that is detrimental to the wideband high-frequency characteristics.
[0155] The cable connector (10) according to the present invention can solve the above problem by replacing the internal pogo pin signal line of the spring structure with an external spring structure as shown in the above FIGS. 10 to 12.
[0156] Furthermore, in the case of conventional technology, simultaneous ground contact is implemented through a reference plate. However, in the case of simultaneous ground contact, there is a problem in that contact conditions vary depending on the substrate flatness, resulting in uneven performance. This also becomes a problem that is detrimental to wideband high-frequency characteristics.
[0157] The cable connector (10) according to the present invention can solve the above problem by having each cable assembly (200) form an individual ground contact.
[0158] In the present invention, by implementing both the signal line and ground contact of the cable connector (10) as a spring structure, a cable connector suitable for implementing wideband high-frequency characteristics can be provided.
[0159]
[0160] The above description is merely an illustrative illustration of the technical idea of the present invention, and those skilled in the art will appreciate that various modifications and variations can be made without departing from the essential characteristics of the present invention. Therefore, the embodiments described in the present invention are not intended to limit the technical idea of the present invention, but rather to illustrate it, and the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present invention.
Claims
1. A cable assembly including a cable necking part, which includes a necking spring that supports the outer side of the cable by being joined and is supported by a housing unit, and the movement of which is controlled by the necking spring; and a connector part spring whose upper side is connected to the lower side of the cable necking part and whose upper side is supported by the housing unit, a center pin that is connected to the signal line of the cable and whose movement is controlled by the cable necking part, and a connector that is electrically connected to a ground contact and whose movement is controlled by the connector part spring; and A cable connector characterized in that it includes a housing unit that supports the cable assembly, including a cable holder body that includes a first guide baffle that supports the cable neck portion and has an upper side of the neck spring in contact with a lower surface, and a second guide baffle that supports the cable connector portion and has an upper side of the connector portion spring in contact with a lower surface.
2. In paragraph 1, The above cable neck portion, A lower body of a neck ring that supports and grips the outer side of the above cable; and It includes a neck ring spring that is mounted on the outside of the neck ring lower body and pressurizes the neck ring lower body while the upper side is supported by the housing unit. The above cable connector part, The center pin connected to the signal wire of the above cable; A connector body through which the center pin is inserted and penetrated; A connector mounted on the lower part of the above connector body, through which the center pin passes, and which is electrically connected to the ground contact; and A cable connector characterized by including a connector spring that is mounted on the outside of the connector body and pressurizes the connector while the upper side is supported by the housing unit.
3. In paragraph 2, The above cable connector part, A cable connector characterized in that it further includes a fixed support member mounted on the outside of the center pin to maintain the position of the center pin so that the center pin does not come into contact with the connector body and the contactor.
4. In paragraph 2, The above cable connector part, A cable connector characterized in that the connector body is pressed by the neck spring and the connector is pressed by the connector spring.
5. In paragraph 4, The above cable connector part, A cable connector characterized in that it further includes an elastic plate disposed between the connector body and the contactor to maintain a ground connection between the connector body and the contactor.
6. In paragraph 4, The above cable connector part, A guide groove formed by opening upward from the lower end of the above connector body; and It further includes a guide projection formed to protrude outwardly at the top of the above contact and inserted and fastened into the above guide groove, A cable connector characterized in that the guide projection guides the movement of the connector along the guide groove.
7. In paragraph 1, The above housing unit, A cable upper holder coupled to the upper part of the cable holder body to support the cable; A housing cover into which the cable holder body having the cable assembly mounted thereon is inserted and mounted; and A cable connector characterized by including a reference plate for supporting the cable assembly mounted on the lower portion of the housing cover.
8. In paragraph 1, The above cable holder body has one side open, A neck ring mounting groove is provided between the plurality of first guide bulkheads, A connector mounting groove is provided between the plurality of second guide bulkheads. A cable connector characterized in that the cable neck ring portion and the cable connector portion of the cable assembly are inserted and mounted in the above-mentioned neck ring portion mounting groove and the above-mentioned connector portion mounting groove.
9. In paragraph 7, A cable connector characterized in that the upper cable holder has an open side stop portion, and the cable grip portion of the cable holder body is fitted into the side stop portion of the upper cable holder, so that the cable is gripped by the combination of the upper cable holder and the cable grip portion.
10. In paragraph 7, A cable connector characterized in that it further includes an alignment pin that protrudes from the lower portion of the cable holder body and has directionality.
Citation Information
Patent Citations
Central control room self-inspection system
KR102307468B1
Cable assembly
US20160104956A1
Highspeed board connector
US20180366844A1
Coaxial connector for inspection, and center conductor
WO2018003639A1
KR20200044844A