Reliable contact type bent connection cable type connector

Abstract

The invention belongs to the technical field of connectors, and particularly relates to a reliable contact type bent connection cable connector which comprises a shell, a plurality of first cavities are formed in one end of the shell, one second cavity is formed in the other end of the shell, and the first cavities are communicated with the second cavity; the group of contact elements are assembled in the cavity I, each contact element comprises a twist needle assembly, the included angle between the head end and the tail end of each twist needle assembly is 90 degrees, the middle part of each twist needle assembly adopts arc-shaped transition, and the tail end of each twist needle assembly extends into the cavity II and is connected with a differential line; the shielding piece is assembled in the second cavity, a cable cavity is formed in the shielding piece in a penetrating mode, the welding point of the tail end of the twist needle combination piece and the differential wire is located in the cable cavity, and the differential wire penetrates through the cable cavity. According to the technical scheme, the reliable contact type bent connection cable type connector has high contact stability and high environment resistance, and adapts to a strong vibration environment.

Description

Technical Field

[0001] The invention belongs to the technical field of connectors, and in particular relates to a reliable contact type bent cable-connecting connector. Background Art

[0002] In electronic system design, especially for multi-layer circuit boards or integrated circuits, the design of parallel board horizontal interconnection usually refers to the way to establish a signal channel or electrical connection between two parallel circuit boards (or different areas of two-layer circuit boards). This interconnection can be a conductive path, a signal line or a power ground line, and is required to maintain low loss, low crosstalk and high bandwidth.

[0003] In the connector field, a common connector method between parallel boards is to use two or even more connectors in a stacked manner. In some high-vibration application environments (such as the aerospace field, automotive industry, industrial equipment, military applications, etc.), the method of using two or even more connectors in a stacked manner to interconnect parallel boards cannot meet the vibration resistance requirements and there is a problem of unreliable contact.

[0004] In view of the above problems, a reliable contact type bent cable connector is designed. Summary of the invention

[0005] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0006] A reliable contact type bent cable connector, comprising:

[0007] A shell, wherein one end of the shell has a plurality of cavities 1 and the other end of the shell has a single cavity 2, and the plurality of cavities 1 are connected to the cavity 2;

[0008] A group of contacts assembled inside the first cavity, the contacts comprising a twisted needle fitting, the angle between the head end and the tail end of the twisted needle fitting is degrees, the middle portion adopts an arc transition, the tail end of the twisted needle fitting extends to the inside of the second cavity and is connected to a differential line;

[0009] A shielding member is assembled inside the second cavity, the shielding member is provided with a cable cavity, the welding point between the tail end of the twisted needle fitting and the differential line is located inside the cable cavity, and the differential line runs through the cable cavity.

[0010] As a preferred embodiment of the above technical solution, a group of the contact members is provided with two, respectively corresponding to two cables in the differential line.

[0011] As a preferred embodiment of the above technical solution, an upper base and a lower base are arranged inside the cavity one, and a plug hole is formed through the upper base, and the head end of the twist needle fitting is inserted into the plug hole;

[0012] The lower base includes two petals arranged opposite to each other, and the end surfaces of the two petals close to each other are provided with notches, and the two notches form a slot hole for accommodating the middle part of the twist needle joint;

[0013] The jack, slot and cable cavity form a complete contact accommodating cavity.

[0014] As a preferred embodiment of the above technical solution, one of the petals is provided with an interference column, and the other petal is provided with a hole, and the interference column is interference fit with the hole.

[0015] As a preferred embodiment of the above technical solution, the housing includes a head housing 1, a head housing 2 and a head housing 3;

[0016] The head shell is provided with a plurality of base cavities extending longitudinally therethrough;

[0017] The middle part of the head shell 2 is horizontally penetrated, and a plurality of metal spacers are arranged in the middle part of the head shell 2. The plurality of metal spacers divide the middle part of the head shell 2 into single cavities whose number is the same as that of the base cavity. The upper end of the head shell 2 has an opening, and the head shell 2 covers the opening;

[0018] The middle part of the head shell three is horizontally penetrated, and the differential line runs through the head shell three;

[0019] The upper base is located inside the base cavity, the lower base is located inside the single cavity, and the base cavity and the single cavity form a complete cavity.

[0020] As a preferred embodiment of the above technical solution, a shielding block cavity one is opened on the head shell two, and a shielding block cavity two is opened on the head shell three. The shielding block cavity one and the shielding block cavity two are arranged opposite to each other, and the shielding component is assembled inside the shielding block cavity one and the shielding block cavity two.

[0021] As a preferred embodiment of the above technical solution, the shielding member is provided with interference barbs, and the interference barbs are interference-fitted with a cavity of the shielding block.

[0022] As a preferred embodiment of the above technical solution, the first head shell is provided with a first rivet hole, and the second head shell is provided with a second rivet hole, and the first rivet hole and the second rivet hole are threadedly engaged with each other through a locking screw;

[0023] The locking screw is sleeved with a rivet.

[0024] As a preferred embodiment of the above technical solution, the head shell is extended to form a side plate, and a locking hole is opened on the side plate. The screw passes through the locking hole and then cooperates with the second thread of the head shell.

[0025] As a preferred embodiment of the above technical solution, the second head shell and the third head shell are connected by glue filling;

[0026] An extension plate is provided at one end of the head shell three, and the extension plate is inserted into the interior of the head shell two to form a glue injection cavity between the extension plate and the inner wall of the head shell two.

[0027] The beneficial effects of the present invention are:

[0028] 1. A reliable contact type curved cable connector in the technical solution has high contact stability, high environmental resistance, and is adaptable to strong vibration environments.

[0029] The docking end of the contact piece is set as a twisted needle fitting, and when docking, it has circular multi-point contact with the contact piece; the fixed end of the contact piece adopts a differential line welded with the twisted needle fitting, and the differential line runs through the cable cavity, and the welding point is covered by the shielding part, so that the contact piece body has a higher connection stability; the angle between the head and tail ends of the twisted needle fitting is 90 degrees, and the middle part adopts an arc transition method, that is, the contact piece is curved as a whole, avoiding the tension that may be generated by a straight connector, reducing the risk of poor contact, and providing more reliable contact.

[0030] 2. A reliable contact type curved cable connector in the present technical solution, the butt end of the contact is located inside cavity one, that is, the butt ends of multiple contacts are separated by cavity one, and the fixed end of the contact passes through the cable cavity, that is, the fixed ends of multiple contacts are separated by shielding parts, so that the connector has higher shielding performance and good signal integrity, which solves the problem that high-speed signals are easily interfered and attenuated when transmitted between parallel plates, and is suitable for interconnection between parallel plates.

[0031] 3. The technical solution provides a reliable contact type curved cable connector, in which the contact piece is arranged in a curved shape as a whole, so as to solve the problem that the tail cable of the straight-out type connector will bend when used in a narrow space, causing damage to the cable; at the same time, if the horizontal interconnection distance between two parallel boards is much larger than 50mm, the connector in the technical solution will play the role of connecting two sub-boards or base boards or chassis in this usage scenario, thus solving the problem that the interconnection between parallel boards in the prior art using connector stacking connection is restricted by the horizontal interconnection distance between parallel boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The structure diagram of a reliable contact type curved cable-connecting connector in Embodiment 1 is shown;

[0033] Figure 2 The figure shows an exploded schematic diagram of a reliable contact type curved cable-connecting connector in Embodiment 1;

[0034] Figure 3 The figure shows the internal structure of a reliable contact type curved cable connector in Example 1;

[0035] Figure 4 It is shown that Figure 3 A schematic diagram of the second perspective structure;

[0036] Figure 5 What is shown is a schematic diagram of the structure of the housing in Example 1;

[0037] Figure 6 The structure diagram of the head housing 1 in the embodiment 1 is shown;

[0038] Figure 7 The structure diagram of the head housing 2 in the embodiment 1 is shown;

[0039] Figure 8 What is shown is a schematic diagram of the structure of the shielding element in Example 1.

[0040] Figure markings: shell; cavity one; cavity two; head shell one 11; rivet hole one 111; locking hole 112; base cavity 113; head shell two 12; rivet hole two 121; metal spacer 122; shielding block cavity one 123; single cavity 124; head shell three 13; shielding block cavity two 131; extension plate 132; upper base 14; jack 141; lower base 15; petal 151; notch 152; overflow column 153; hole 154; shielding part 16; interference barb 161; cable cavity 162; rivet 17; screw 18; contact part 19; twisted needle part 191; differential line 192; locking screw 20. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0042] Example 1

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 As shown, a reliable contact type curved cable connector includes: a housing, one end of the housing has a plurality of cavities 1, and the other end of the housing has a cavity 2, and the plurality of cavities 1 are connected to the cavity 2;

[0044] A group of contacts 19 assembled inside the first cavity, wherein the group of contacts 19 is provided with two, respectively corresponding to the two cables in the differential line 192, the two contacts 19 are distributed inside and outside, the contact 19 comprises a twisted needle fitting 191, the angle between the head end and the tail end of the twisted needle fitting 191 is 90 degrees, the middle part adopts an arc transition, the tail end of the twisted needle fitting 191 extends to the inside of the second cavity and is connected with the differential line 192;

[0045] The shielding member 16 is assembled inside the second cavity, and a cable cavity 162 is opened through the shielding member 16 . The welding point between the tail end of the twisted needle fitting 191 and the differential line 192 is located inside the cable cavity 162 , and the differential line 192 runs through the cable cavity 162 .

[0046] A reliable contact type curved cable connector in the technical solution includes a housing, a contact 19 assembled inside a cavity one, a shielding member 16 assembled inside a cavity two, and the contact 19 penetrates the shielding member 16, wherein 1. The butt joint end of the contact 19 is set as a twisted needle fitting 191, and when butt jointed, it is in circumferential multi-point contact with the contact 19;

[0047] 2. The fixed end of the contact 19 adopts a differential line 192 welded with the twisted needle fitting 191, and the differential line 192 runs through the cable cavity 162, and the welding point is covered by the shielding member 16, so that the contact 19 body has a higher connection stability;

[0048] 3. The angle between the head and tail ends of the twisted needle fitting 191 is 90 degrees, and the middle part adopts an arc transition, that is, the contact piece 19 is curved as a whole, avoiding the tension that may be generated by a straight connector, reducing the risk of poor contact, and providing more reliable contact;

[0049] It mainly disperses the tensile force concentrated in the straight direction of the linear connector through bending, reduces the problem of force concentration, avoids excessive tensile force that may cause the connection to loosen or be damaged, and thus achieves reliable contact.

[0050] A reliable contact type curved cable-connecting connector in the technical solution has high contact stability and high environmental resistance and is adaptable to strong vibration environments.

[0051] A reliable contact type curved cable connector in the present technical solution, the butt end of the contact 19 is located inside the cavity one, that is, the butt ends of multiple contacts 19 are separated by the cavity one, and the fixed end of the contact 19 passes through the cable cavity 162, that is, the fixed ends of multiple contacts 19 are separated by the shielding member 16, so that the connector has higher shielding performance and good signal integrity, solves the problem that high-speed signals are easily interfered and attenuated when transmitted between parallel plates, and is suitable for interconnection between parallel plates.

[0052] The technical solution provides a reliable contact type curved cable connector, in which the contact piece 19 is arranged in a curved shape as a whole, so as to solve the problem that the tail cable of the straight outlet type connector will bend when used in a narrow space, causing damage to the cable; at the same time, if the horizontal interconnection distance between two parallel boards is much larger than 50mm, the connector in the technical solution will play the role of connecting two sub-boards or base boards or chassis in this usage scenario, thus solving the problem in the prior art that the interconnection between parallel boards using connector stacking connection is restricted by the horizontal interconnection distance between parallel boards.

[0053] In order to further improve the contact stability and shielding performance of the connector in this technical solution, Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, an upper base 14 and a lower base 15 are provided inside the cavity 1, and a plug hole 141 is provided through the upper base 14, and the head end of the twist needle fitting 191 is inserted into the plug hole 141;

[0054] The lower base 15 includes two petals 151 disposed opposite to each other. The end surfaces of the two petals 151 close to each other are provided with notches 152. The two notches 152 form a slot hole for accommodating the middle part of the twist needle fitting 191.

[0055] The plug hole 141, the slot hole, and the cable cavity 162 form a complete contact accommodating cavity.

[0056] A reliable contact type curved cable connector in the technical solution, the contact member 19 is assembled inside the cavity 1 through the upper base 14 and the lower base 15, 1. The assembly position of the contact member 19 inside the shell is limited to improve the stability of the position after assembly and ensure reliable contact;

[0057] 2. The jack 141, the slot, and the cable cavity 162 form a complete contact accommodating cavity, and the contacts 19 are respectively located in the corresponding contact accommodating cavities, and the multiple contacts 19 are further separated to improve the shielding effect;

[0058] 3. The head end of the twisted needle fitting 191 is inserted into the interior of the upper base 14 and rigidly matched with the socket 141. The lower base 15 sleeved in the middle of the twisted needle fitting 191 is composed of two relatively arranged petals 151, which solves the problem of difficulty in assembly due to the overall bending of the contact piece 19.

[0059] Specifically, in order to realize the disassembly or installation of the two relatively arranged petals 151, as Figure 3 , Figure 4As shown, one petal body 151 is provided with an interlocking post 153, and the other petal body 151 is provided with a hole 154, and the interlocking post 153 is interference-fitted with the hole 154. When installing the two petal bodies 151, the two petal bodies 151 are placed opposite to each other, and the interlocking post 153 is inserted into the inside of the hole 154 until the two petal bodies 151 collide with each other and the two notches 152 form a complete slot.

[0060] Further, to solve the problem of connector assembly difficulty, such as Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, the housing includes a head housing 11, a head housing 2 12 and a head housing 3 13; a plurality of base cavities 113 are longitudinally provided on the head housing 11;

[0061] The middle part of the head shell 12 is horizontally penetrated, and a plurality of metal spacers 122 are arranged in the middle part of the head shell 12. The plurality of metal spacers 122 divide the middle part of the head shell 12 into single cavities 124 whose number is consistent with the base cavity 113. The upper end of the head shell 12 has an opening, and the head shell 12 covers the opening. In the head shell 12, a plurality of metal spacers 122 are used to divide the middle part of the head shell 12 into single cavities 124 whose number is consistent with the base cavity 113, thereby improving the anti-crosstalk index of the connector in the present technical solution.

[0062] The middle part of the head shell three 13 is horizontally penetrated, and the differential line 192 runs through the head shell three 13; the upper base 14 is located inside the base cavity 113, and the lower base 15 is located inside the single cavity 124. The base cavity 113 and the single cavity 124 form a complete cavity one, and the cavity one is curved as a whole.

[0063] The connector housing in the technical solution is composed of a head shell 11, a head shell 2 12 and a head shell 3 13. The head end and the upper base 14 of the twisted needle fitting 191 are assembled in the head shell 11, the middle part and the lower base 15 of the twisted needle fitting 191 are assembled in the head shell 2 12, and the tail end and the differential line 192 of the twisted needle fitting 191 are assembled in the head shell 3 13.

[0064] During assembly, first assemble the contact piece 19 to the upper base 14 and the lower base 15, weld the tail end of the twisted needle fitting 191 to the differential line 192, then put it into the head shell 11, press the head shell 2 12 in from the back, and then assemble the head shell 11 and the head shell 2 12, and then pass the shielding piece 16 through the differential line 192 and press it into the head shell 2 12, and pass the head shell 3 13 through the differential line 192 and assemble it with the head shell 2 12. The operation is simple, and the problem of assembly difficulty caused by the overall bending of the contact piece 19 in the connector is solved.

[0065] To solve the installation problem of the shielding member 16, as Figure 5 , Figure 6 , Figure 7 As shown, a shielding block cavity 123 is provided on the head shell 2 12, and a shielding block cavity 2 131 is provided on the head shell 3 13. The shielding block cavity 123 and the shielding block cavity 2 131 are arranged opposite to each other, and the shielding member 16 is assembled inside the shielding block cavity 123 and the shielding block cavity 2 131;

[0066] The shielding member 16 is assembled inside the shielding block cavity 1 123 and the shielding block cavity 2 131. The head shell 2 12 and the head shell 3 13 limit the two ends of the shielding member 16 to achieve stable assembly of the shielding member 16, thereby improving the stability of the contact member 19 and the entire connector assembly.

[0067] More specifically, Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the shielding member 16 is provided with interference barbs 161, and the interference barbs 161 are interference-fitted with the shielding block cavity 123.

[0068] To achieve the connection between the head shell 11 and the head shell 2 12, as shown in FIG. Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, a rivet hole 111 is provided on the head shell 11, and a rivet hole 121 is provided on the head shell 2 12. The rivet hole 111 and the rivet hole 121 are threadedly matched with each other through a locking screw 20; the locking screw 20 is sleeved with a rivet 17.

[0069] like Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, the head shell 11 is extended to form a side plate, and a locking hole 112 is opened on the side plate. The screw 18 passes through the locking hole 112 and then engages with the head shell 2 12 threadedly.

[0070] The head shell 11 covers the opening on the head shell 2 12. After the locking screw 20 is set with the rivet 17, the rivet hole 111 and the rivet hole 121 are threadedly matched through the locking screw 20; the screw 18 passes through the locking hole 112 on the head shell 11 and then threadedly matches with the head shell 2 12 to achieve stable assembly between the head shell 11 and the head shell 2 12.

[0071] To achieve the connection between the head shell 2 12 and the head shell 3 13, as shown in FIG. Figure 5 , Figure 6 , Figure 7 , Figure 8As shown, the head shell 2 12 and the head shell 3 13 are connected by glue filling; an extension plate 132 is provided at one end of the head shell 3 13, and the extension plate 132 is inserted into the interior of the head shell 2 12 and forms a glue filling cavity between the extension plate 132 and the inner wall of the head shell 2 12, and glue is filled in the glue filling cavity.

[0072] When the head shell three 13 passes through the differential line 192 and is assembled with the head shell two 12 , the extension plate 132 is inserted into the head shell two 12 . After the head shell three 13 is installed, it is sealed and fixed to achieve stable assembly between the head shell two 12 and the head shell three 13 .

[0073] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A reliable contact type curved cable connector, characterized in that: include: A shell, wherein one end of the shell has a plurality of cavities 1, and the other end of the shell has a single cavity 2, wherein the plurality of cavities 1 are connected to the cavity 2; A group of contact pieces (19) assembled inside cavity one, the contact pieces (19) comprising a twisted needle piece (191), the angle between the head end and the tail end of the twisted needle piece (191) is (90) degrees, the middle portion adopts an arc transition, the tail end of the twisted needle piece (191) extends to the inside of cavity two and is connected to a differential line (192); A shielding member (16) is assembled inside the second cavity, a cable cavity (162) is opened through the shielding member (16), a welding point between the tail end of the twisted needle fitting (191) and the differential line (192) is located inside the cable cavity (162), and the differential line (192) passes through the cable cavity (162).

2. A reliable contact type curved cable connector according to claim 1, characterized in that: A group of the contact members (19) is provided as two, respectively corresponding to two cables in the differential line (192).

3. A reliable contact type bent cable connector according to claim 1, characterized in that: An upper base (14) and a lower base (15) are arranged inside the cavity, and a plug hole (141) is provided through the upper base (14), and the head end of the twist needle fitting (191) is inserted into the plug hole (141); The lower base (15) comprises two petals (151) arranged opposite to each other, and the end surfaces of the two petals (151) close to each other are provided with notches (152), and the two notches (152) form a slot hole for accommodating the middle part of the twist needle fitting (191); The plug hole (141), the slot hole, and the cable cavity (162) form a complete contact piece accommodating cavity.

4. A reliable contact type bent cable connector according to claim 3, characterized in that: One of the petal bodies (151) is provided with an interference column (153), and the other petal body (151) is provided with a hole (154), and the interference column (153) and the hole (154) are interference-fitted.

5. A reliable contact type bent cable connector according to claim 1, characterized in that: The housing comprises a head housing 1 (11), a head housing 2 (12) and a head housing 3 (13); The head shell (11) is longitudinally provided with a plurality of base cavities (113); The middle part of the second head shell (12) is transversely penetrated, and a plurality of metal spacers (122) are arranged in the middle part of the second head shell (12). The plurality of metal spacers (122) divide the middle part of the second head shell (12) into single cavities (124) whose number is the same as that of the base cavity (113). The upper end of the second head shell (12) has an opening, and the second head shell (12) covers the opening; The middle part of the head shell three (13) is transversely penetrated, and the differential line (192) runs through the head shell three (13); The upper base (14) is located inside the base cavity (113), and the lower base (15) is located inside the single cavity (124). The base cavity (113) and the single cavity (124) form a complete cavity.

6. A reliable contact type bent cable connector according to claim 5, characterized in that: The head shell 2 (12) is provided with a shielding block cavity 1 (123), and the head shell 3 (13) is provided with a shielding block cavity 2 (131). The shielding block cavity 1 (123) and the shielding block cavity 2 (131) are arranged opposite to each other, and the shielding component (16) is assembled inside the shielding block cavity 1 (123) and the shielding block cavity 2 (131).

7. A reliable contact type bent cable connector according to claim 6, characterized in that: The shielding member (16) is provided with an interference barb (161), and the interference barb (161) is interference-fitted with the shielding block cavity 1 (123).

8. A reliable contact type bent cable connector according to claim 5, characterized in that: The first head shell (11) is provided with a first rivet hole (111), and the second head shell (12) is provided with a second rivet hole (121), wherein the first rivet hole (111) and the second rivet hole (121) are threadedly matched via a locking screw (20); The locking screw (20) is sleeved with a rivet (17).

9. A reliable contact type bent cable connector according to claim 8, characterized in that: The head shell one (11) extends to form a side plate, and a locking hole (112) is opened on the side plate. The screw (18) passes through the locking hole (112) and then engages with the thread of the head shell two (12).

10. A reliable contact type bent cable connector according to claim 9, characterized in that: The second head shell (12) and the third head shell (13) are connected by glue filling; An extension plate (132) is provided at one end of the head shell three (13), and the extension plate (132) is inserted into the interior of the head shell two (12) to form a glue injection cavity between the extension plate (132) and the inner wall of the head shell two (12).

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