Connector capable of preventing terminal from falling off

Abstract

The connector comprises a male head and a female head, each of the male head and the female head comprises an insertion core and a shell, the insertion cores are mounted in the shells, a plurality of mounting holes are formed in the insertion cores in a penetrating manner, terminals are arranged in the mounting holes, a plurality of limiting holes are formed in the insertion cores, the limiting holes are communicated with the mounting holes, and the limiting holes are communicated with the mounting holes. A limiting hole is formed in the outer side of the terminal, a fixing piece is arranged in the limiting hole, the fixing piece is detachably connected with the outer side of the terminal, a limiting plate is fixedly connected to the inserting cores, a plurality of cushion blocks extend on the limiting plate and are arranged in the limiting hole, an inserting groove is formed in one inserting core, the other inserting core is inserted into the inserting groove in a sliding mode, and the limiting plate is fixedly connected with the inserting core. And the terminal of one insertion core is electrically connected with the terminal of the other insertion core. According to the connector capable of preventing the terminal from falling off, the strength of the terminal fixed on the insertion core is enhanced, and the butt joint signal transmission stability of the male head and the female head is ensured.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and in particular to a connector that prevents terminals from falling off. Background Technology

[0002] As a key interface for the transmission of electrical signals and energy, the reliability of connector terminal fixation directly affects the stability of equipment connection and long service life. In the existing technology, the internal terminals of connectors generally rely on physical structures (such as elastic snaps) for fixation, or use snap-fit ​​parts to cooperate with the limiting grooves or bosses preset in the connector housing to form mechanical constraints to prevent terminal displacement.

[0003] However, such fixing mechanisms have significant defects in practical applications. High-frequency insertion and removal operations cause deformation of the snap-fit ​​structure, weakening the tightness of the fit between the snap-fit ​​and the limiting groove, resulting in the terminals gradually loosening. Loose terminals will affect the mating of male and female connectors, causing electrical abnormalities such as signal distortion and arc discharge. Utility Model Content

[0004] The purpose of this invention is to provide a connector that prevents terminals from falling off, enhances the strength of the terminals fixed on the ferrule, and ensures the stability of signal transmission between the male and female connectors.

[0005] The technical solution adopted by the connector for preventing terminal detachment disclosed in this utility model is as follows:

[0006] The device includes a male connector and a female connector, each comprising a core and a housing. The core is installed within the housing and has multiple mounting holes. Terminals are located within the mounting holes. The core also has multiple limiting holes that communicate with the mounting holes. A fixing member is located within each limiting hole and is detachably connected to the outside of the terminal. A limiting plate is fixedly connected to the core, and multiple pads extend from the limiting plate and are placed within the limiting holes. One core has a slot, and another core slides into the slot. The terminal of one core is electrically connected to the terminal of the other core.

[0007] As a preferred embodiment, the pad has a through hole that communicates with the limiting hole.

[0008] As a preferred embodiment, the plurality of limiting holes are located on both sides of the insert, and there are two limiting plates on the insert, which are respectively covered on the limiting holes on both sides of the insert.

[0009] As a preferred embodiment, multiple annular grooves are provided on both sides of the insert, the limiting hole is located in the annular groove, multiple limiting rings extend from the limiting plate, the through hole is located in the limiting ring, and the limiting ring is fixed by being inserted into the annular groove.

[0010] As a preferred embodiment, one of the terminals on the insert is a contact pin, and the other terminal on the insert is a contact post. One end of the contact pin and one end of the contact post both extend into a connecting portion. One end of the connecting portion is provided with a first connecting hole, and the outer side of the connecting portion is provided with a second connecting hole communicating with the first connecting hole. The fixing member is connected to the second connecting hole. The other end of the contact post is provided with a mating hole, and the other end of the contact pin is slidably inserted into the mating hole.

[0011] As a preferred embodiment, a gasket is provided on the outer side of the connecting part, the fastener passes through one end of the gasket, and the other end of the gasket extends into the first connecting hole.

[0012] As a preferred embodiment, two limiting members are installed inside the housing, and spring pieces extend from the limiting members. A slot is opened on the insert, and the insert is placed between the two limiting members. The spring pieces are inserted into the slot for fixation.

[0013] The beneficial effects of the connector for preventing terminal detachment disclosed in this utility model are:

[0014] The cable passes through the housing and is electrically connected to the terminal on the ferrule. Another ferrule slides into the slot, so that the terminal of one ferrule is electrically connected to the terminal of the other ferrule. In use, a fixing member that is detachably connected to the terminal is set in the limiting hole, so that the fixing member constrains the axial movement of the terminal and limits the terminal in the mounting hole, avoiding the connection between the terminal and the ferrule from loosening due to high frequency plugging and unplugging of the male and female connectors.

[0015] When this connector is used in high-frequency vibration applications, the high-frequency vibration will cause the fixing component to move axially. The pads on the limiting plate constrain the fixing component to move axially within the limiting hole, thus preventing the fixing component from detaching from the terminal and causing the terminal to loosen. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a connector for preventing terminal detachment according to this utility model.

[0017] Figure 2 This is a schematic diagram of the male connector installation for a connector designed to prevent terminal detachment according to this utility model.

[0018] Figure 3 This is a schematic diagram of the insert structure of the male connector of a connector designed to prevent terminal detachment according to this utility model.

[0019] Figure 4 This is a cross-sectional view of the male connector core of a connector designed to prevent terminal detachment according to this utility model.

[0020] Figure 5This is a schematic diagram of the female connector installation for a connector designed to prevent terminal detachment according to this utility model.

[0021] Figure 6 This is a cross-sectional view of the female connector housing of a connector designed to prevent terminal detachment according to this utility model.

[0022] Figure 7 This is a schematic diagram of the insert structure of the female head of a connector that prevents terminal detachment according to this utility model.

[0023] Figure 8 This is a cross-sectional view of the female connector core of a connector designed to prevent terminal detachment according to this utility model.

[0024] Figure 9 This is a cross-sectional view of a connector for preventing terminal detachment according to this utility model. Detailed Implementation

[0025] The present invention will be further described and illustrated below with reference to specific embodiments and the accompanying drawings:

[0026] Please refer to Figure 1 , Figure 2 and Figure 5 .

[0027] This utility model discloses a connector for preventing terminal detachment, comprising a male connector 1 and a female connector 2;

[0028] Both the male connector 1 and the female connector 2 include a core 4 and a housing 3. The core 4 is installed inside the housing 3. Two limiting members 31 are installed on the inner wall of the housing 3, and the two limiting members 31 are far apart from each other. A spring piece 311 extends from the limiting member 31. In this embodiment, it is preferred that there are two spring pieces 311 on the limiting member 31, and the spring pieces 311 are inclined at a certain angle on the limiting member 31. A slot 411 is opened on the core 4. In this embodiment, it is preferred that there are two slots 411 on the core 4, and the two slots 411 correspond to the two spring pieces 311. The core 4 is placed between the two limiting members 31, and the spring pieces 311 are inserted into the slots 411 for fixation. The housing 3 fixes the core 4 inside the housing 3 through the limiting members 31. The design of the spring pieces 311 on the limiting members 31 being inserted into the slots 411 on the core 4 facilitates the assembly of the core 4 and the housing 3.

[0029] Furthermore, one of the inserts 4 has a slot 42 at its bottom, and multiple anti-mistake grooves 421 are provided on the inner wall of the slot 42. Multiple anti-mistake protrusions 412 extend from the outer side of the other insert 4, and the anti-mistake protrusions 412 are close to the top of the other insert 4.

[0030] Please refer to Figure 3 , Figure 4 , Figure 7 and Figure 8 .

[0031] Multiple mounting holes 43 are passed through both inserts 4. The mounting holes 43 pass through from the top of the insert 4 to the bottom of the insert 4. The multiple mounting holes 43 are arranged in two rows on the insert 4. The two rows of mounting holes 43 are close to the two sides of the insert 4 respectively. One of the mounting holes 43 on the insert 4 is connected to the bottom of the slot 42.

[0032] Furthermore, each of the two inserts 4 is provided with a plurality of limiting holes 44, which are inserted through the wall of the mounting hole 43, so that the limiting holes 44 are connected to the mounting hole 43 and the limiting holes 44 are perpendicular to each other; the plurality of limiting holes 44 are located on both sides of the insert 4, and in this embodiment, the plurality of limiting holes 44 on each side of the insert 4 are preferably arranged in a straight line.

[0033] A terminal is provided in the mounting hole 43, and a fixing member 441 is provided in the limiting hole 44. In this embodiment, the fixing member 441 is preferably a screw, and the fixing member 441 is detachably connected to the outside of the terminal.

[0034] Furthermore, one of the ferrules 4 has a contact pin 11 as its terminal, and the other ferrule 4 has a contact post 21 as its terminal. One end of the contact pin 11 and one end of the contact post 21 both extend to a connecting portion 111. One end of the connecting portion 111 has a first connecting hole 112, and the outer side of the connecting portion 111 has a second connecting hole. The second connecting hole communicates with the first connecting hole 112. The fixing member 441 is engaged with the second connecting hole, so that the fixing member 441 constrains the axial movement of the terminal and limits the terminal to the mounting hole 43, so as to prevent the connection between the terminal and the ferrule 4 from loosening due to high-frequency plugging and unplugging of the male and female connectors 1 and 2.

[0035] Furthermore, the other end of the contact pin 11 extends into the slot 42, and the other end of the contact post 21 is provided with a mating hole 211;

[0036] Furthermore, a gasket 113 is provided on the outer side of the connecting part 111, and the fastener 441 passes through one end of the gasket 113 to limit the gasket 113 on the outer side of the connecting part 111. The other end of the gasket 113 extends into the first connecting hole 112.

[0037] Both ferrules 4 are fixedly connected to limiting plates 45. In this embodiment, it is preferred that there are two limiting plates 45 on each ferrule 4. The two limiting plates 45 are respectively covered on the limiting holes 44 on both sides of the ferrule 4. Multiple pads 451 extend from the limiting plates 45. The pads 451 are placed in the limiting holes 44. Through holes 452 are passed through the pads 451 and communicate with the limiting holes 44. When the connector vibrates at high frequency, the connection between the fixing member 441 and the second connecting hole gradually loosens, causing the fixing member 441 to move axially in the limiting hole 44. The pads 451 can constrain the distance of axial movement of the fixing member 441 in the limiting hole 44, and prevent the connection between the fixing member 441 and the second connecting hole from completely disengaging.

[0038] Furthermore, multiple annular grooves 413 are provided on both sides of the two inserts 4, and the limiting hole 44 is located in the annular groove 413; multiple limiting rings 453 extend from the limiting plate 45, and the through hole 452 is located in the limiting ring 453. The limiting ring 453 is inserted into the annular groove 413 for fixation, thereby fixing the limiting plate 45 onto the insert 4.

[0039] Please refer to Figure 2 and Figure 5 .

[0040] Two limiting posts 12 are fixedly connected to both sides of the housing 3 of the male head 1, and the limiting posts 12 are close to the bottom of the housing 3 of the male head 1; two levers 22 are provided on the housing 3 of the female head 2, and the two ends of the levers 22 are rotatably connected to the two sides of the housing 3 of the female head 2 respectively. Both ends of the levers 22 have buckles extending from them, and the buckles are close to the top of the housing 3 of the male head 1.

[0041] Furthermore, the housing 3 of the female head 2 is fitted with a sealing ring 23, which is located on the top of the housing 3 of the female head 2.

[0042] Please refer to Figures 1-9 .

[0043] During installation, the cable passes through the housing 3 and is inserted into the connection hole. The other end of the gasket 113 holds the cable in place and fixes it in the connection hole. Use a screwdriver to rotate the fixing member 441 through the through hole 452 so that the fixing member 441 pushes the other end of the gasket 113 to further clamp and limit the cable. After the cable installation is completed, insert the two ferrules 4 into the two limiting members 31 in the two housings 3 respectively.

[0044] Male connector 1 mates with female connector 2. The bottom of male connector 1 housing 3 is mounted on top of female connector 2 housing 3. The bottom of male connector 1 housing 3 contacts sealing ring 23. Sealing ring 23 seals the gap between male connector 1 housing 3 and female connector 2 housing 3, preventing external moisture from entering the connector through the gap between male connector 1 housing 3 and female connector 2 housing 3, thus affecting the electrical transmission of the connector. Moving the lever 22 causes the limiting post 12 to engage with the adjacent latch, allowing male connector 1 to mate more securely with female connector 2.

[0045] Another insert 4 slides into the slot 42, and the foolproof protrusion 412 slides into the adjacent foolproof groove 421, allowing the user to correctly mate the male connector 1 and the female connector 2; the other end of the contact pin 11 slides into the mating hole 211, so that the contact pin 11 is electrically connected to the contact post 21.

[0046] This utility model provides a connector that prevents terminals from falling off. The cable passes through the housing and is electrically connected to the terminals on the ferrule. Another ferrule slides into the slot, so that the terminals of one ferrule are electrically connected to the terminals of the other ferrule. In use, a fixing member that is detachably connected to the terminal is provided in the limiting hole, so that the fixing member constrains the axial movement of the terminal and limits the terminal in the mounting hole, avoiding the connection between the terminal and the ferrule from loosening due to high frequency of plugging and unplugging of the male and female connectors.

[0047] When this connector is used in high-frequency vibration applications, the high-frequency vibration will cause the fixing component to move axially. The pads on the limiting plate constrain the fixing component to move axially within the limiting hole, thus preventing the fixing component from detaching from the terminal and causing the terminal to loosen.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A connector for preventing terminal detachment, characterized in that, Includes male and female heads; Both the male and female connectors include a core and a housing. The core is installed inside the housing and has multiple mounting holes through it. Terminals are provided in the mounting holes. The insert has multiple limiting holes, which communicate with the mounting holes. A fixing member is provided inside the limiting hole, and the fixing member is detachably connected to the outside of the terminal. A limiting plate is fixedly connected to the insert, and multiple pads extend from the limiting plate, with the pads placed inside the limiting holes; One of the plugs has a slot, and the other plug slides into the slot, with the terminal of one plug electrically connected to the terminal of the other plug.

2. The connector for preventing terminal detachment as described in claim 1, characterized in that, The pad has a through hole, which is connected to the limiting hole.

3. A connector for preventing terminal detachment as described in claim 2, characterized in that, The plurality of limiting holes are located on both sides of the insert, and there are two limiting plates on the insert, which are respectively covered on the limiting holes on both sides of the insert.

4. A connector for preventing terminal detachment as described in claim 3, characterized in that, Multiple annular grooves are provided on both sides of the insert, the limiting hole is located in the annular groove, multiple limiting rings extend from the limiting plate, the through hole is located in the limiting ring, and the limiting ring is fixed by being inserted into the annular groove.

5. A connector for preventing terminal detachment as described in claim 4, characterized in that, One of the terminals on the insert is a contact pin, and the other terminal on the insert is a contact post. One end of the contact pin and one end of the contact post both extend into a connecting portion. One end of the connecting portion has a first connecting hole, and the outer side of the connecting portion has a second connecting hole communicating with the first connecting hole. The fixing member is connected to the second connecting hole. The other end of the contact post has a mating hole, and the other end of the contact pin slides into the mating hole.

6. A connector for preventing terminal detachment as described in claim 5, characterized in that, A gasket is provided on the outside of the connecting part, the fastener passes through one end of the gasket, and the other end of the gasket extends into the first connecting hole.

7. A connector for preventing terminal detachment as described in claim 6, characterized in that, Two limiting members are installed inside the housing. The limiting members have spring pieces extending from them. The insert has a slot. The insert is placed between the two limiting members. The spring pieces are inserted into the slots for fixation.

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