Vibration resistant structure, vibration resistant connector, and vibration resistant connector assembly

Abstract

An anti-vibration structure, an anti-vibration connector, an anti-vibration connector assembly, an anti-vibration structure for mutually inserted insertion structures, wherein the insertion end of one of the insertion structures has two or more protrusions distributed along the insertion direction on the outer wall of the insertion structure, and the outer wall of the protrusions is in contact with the inner wall of the corresponding insertion structure after the insertion structure is inserted into the other insertion structure, and the mutual insertion part of the two insertion structures is provided with protrusions near the two ends. During the insertion of the insertion structure, the gap between the insertion structures is usually larger when the first segment of the protrusion is in contact and the second segment is not in contact, which facilitates the alignment, guidance and insertion of the two insertion structures; when the second segment is in contact, the radial gap between the insertion structures is smaller, and after the insertion is in place, the radial gap is smaller, so that the mutual movement between the insertion structures is smaller when vibrating, which is beneficial to improve the anti-vibration ability.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of connectors, and particularly relates to an anti-vibration structure, an anti-vibration connector and an anti-vibration connector assembly. BACKGROUND

[0002] When the threaded connector head seat is inserted, the key on the outer wall of the spline shell in the plug is first engaged with the corresponding groove on the inner wall of the square disc shell in the socket, and then the connecting nut connected to the outer side of the plug is rotated in the clockwise direction, and the inner thread of the connecting nut is engaged with the outer thread of the square disc shell. Since the connecting nut and the spline shell are in rigid contact in the axial direction, the spline shell is inserted into the square disc shell driven by the connecting nut. When the connecting nut of the plug completely covers the red band on the outer wall of the square disc shell, the spline shell and the square disc shell are tightly clamped, and the head seat is inserted in place, as shown in Figure 1 The existing spline shell is provided with a boss on the outer wall of the front end, and a grounding spring is sleeved on the rear side of the boss. After the plug and the socket are inserted, the boss cooperates with the inner wall of the square disc shell to achieve clamping of the spline shell and the square disc shell. After the head seat is inserted in place, the outer circle of the boss on the spline shell cooperates with the inner circle of the inner wall of the square disc shell. Since the plug and the socket have a certain length, only a segment of the boss is in contact and cooperation, and the head seat can move or swing in a certain radial space. After the connector is inserted, if it is in a vibrating environment, the insertion of the plug and the socket will be loose, which will further cause interruption of signal transmission of the contact. SUMMARY

[0003] To solve the technical problem of poor anti-vibration performance of the above-mentioned connector, the present application provides an anti-vibration structure, an anti-vibration connector and an anti-vibration connector assembly.

[0004] The purpose of the present application is achieved by the following technical solution. According to the anti-vibration structure provided by the present application, two or more bosses are arranged on the outer wall of the insertion end of one of the insertion structures in the insertion direction. After the insertion structure is inserted into the other insertion structure, the outer wall of the boss is in contact and cooperation with the inner wall of the corresponding insertion structure, and the mutual insertion part of the two insertion structures is provided with a boss near the two ends.

[0005] Further, each of the bosses is arranged on the outer wall of the insertion structure in a ring shape.

[0006] Further, the same boss is divided into multiple segments in a ring shape, and at least one segment of the boss is in contact and cooperation with the inner wall of the other insertion structure.

[0007] The application discloses an anti-vibration connector, which comprises a spline shell, a first boss arranged on the outer wall of the front end of the spline shell, and a second boss arranged on the outer wall of the rear end of the spline shell.

[0008] Further, the first boss and the second boss are sleeved with grounding springs.

[0009] Further, a connecting nut is arranged on the outer wall of the spline shell, and a gap is arranged between the inner wall of the front end of the connecting nut and the outer wall of the front end of the spline shell, so that the front end of the spline shell is inserted into the cavity of the front end of another connector, and the inner wall of the connecting nut is screwed with the outer wall of the front end of another connector.

[0010] Further, the outer wall of the front end of the spline shell is circumferentially distributed with axially extending keys, and the inner wall of the front end of another connector is arranged with grooves matched with the keys, so that the connecting nut is screwed with another connector after the keys are inserted into the grooves.

[0011] Further, the keys on the spline shell are circumferentially distributed on the first boss.

[0012] The application further discloses an anti-vibration connector assembly, which comprises the anti-vibration connector and a socket matched with the anti-vibration connector.

[0013] Further, the outer wall of the front end of the socket is arranged with external threads for connecting with the connecting nut, and a red band is wound on the outer wall of the front end of the socket at the rear side of the external threads, so that the front end of the connecting nut completely covers the red band, the contact pin of the anti-vibration connector is completely inserted into the contact hole of the socket, and the boss of the front end of the spline shell is completely clamped in the socket, and the plug and the socket are inserted into position.

[0014] Compared with the prior art, the anti-vibration connector has the advantages that during the insertion of the insertion structure, the boss is usually in contact with the first section and the second section is not in contact, so that the gap between the insertion structures is large, the alignment, guidance and insertion of the two insertion structures are facilitated, the radial gap between the insertion structures is smaller when the second section is in contact, the radial gap is smaller after the insertion is completed, the mutual movement between the insertion structures is smaller when the vibration occurs, and the anti-vibration capability is improved.

[0015] The above description is only a summary of the technical scheme of the application, and the application can be implemented according to the content of the description, and the above and other purposes, characteristics and advantages of the application can be more obvious and easy to understand. The following preferred embodiments are described in detail, and the accompanying drawings are referred to. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Figure 3 is a schematic view of the prior art connector head seat after insertion;

[0017] Figure 2 Figure 4 is a schematic view of the prior art connector head seat after one segment contact;

[0018] Figure 3 Figure 5 is a schematic view of the anti-vibration structure embodiment of the present application;

[0019] Figure 4 Figure 6 is a schematic view of the anti-vibration structure embodiment of the present application after two segment contact;

[0020] Figure 5 Figure 7 is a schematic view of the anti-vibration connector assembly embodiment of the present application during insertion;

[0021] Figure 6 Figure 8 is a schematic view of the anti-vibration connector assembly embodiment of the present application after insertion.

[0022]

Legend

[0023] 1 - plug, 101 - spline housing, 102 - connecting nut, 103 - pin contact, 104 - first boss, 105 - second boss, 106 - grounding spring, 2 - socket, 201 - square plate housing, 202 - jack contact, 203 - red band, 204 - square plate, 3 - one segment contact, 4 - two segment contact. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0025] The embodiment of the anti-vibration connector assembly of the present application includes a plug 1 and a socket 2. The end of the plug 1 and the socket 2 inserted into each other is the front end. The plug 1 includes a spline housing 101 and a connecting nut 102, and the socket 2 includes a square plate housing 201, as shown in Figures 3 to 6 .

[0026] The connecting nut 102 is rotatably arranged outside the spline housing 101. The inner wall of the front end of the connecting nut 102 and the outer wall of the front end of the spline housing 101 have a gap for inserting the front end of the square plate housing 201. After the plug and the socket are inserted, the front end of the spline housing 101 is inserted into the cavity of the front end of the square plate housing 201, and the inner wall of the connecting nut 102 is threadedly connected with the outer wall of the square plate housing 201.

[0027] The insulator and the contact are arranged in the corresponding spline shell 101 and square disc shell 201, and the contact is inserted in the corresponding insulator. In the embodiment, the pin contact 103 is arranged in the spline shell 101, and the socket contact 202 is arranged in the square disc shell 201. After the plug is inserted into the socket, the pin contact 103 is inserted into the socket contact 202.

[0028] The spline shell 101 is provided with axially extending keys on the outer wall near the front end, and the square disc shell 201 is provided with a groove matching the keys on the inner wall of the front end. The groove penetrates the inner wall of the front end of the square disc shell. When the plug is inserted into the socket, the keys are first inserted into the groove to prevent rotation. At this time, the connecting nut has not contacted the square disc shell. Then, the connecting nut 102 is rotated. Since the spline shell and the square disc shell are limited in the circumferential direction and can move relative to each other in the axial direction, the connecting nut 102 is screwed with the square disc shell 201. After the screwing, the connecting nut 102 is further screwed to make the internal thread of the connecting nut 102 engage with the external thread of the square disc shell 201 and move in the opposite direction, so that the front end of the spline shell 101 is brought into the square disc shell 201. During the insertion process, the keys on the spline shell slide in the groove. The connecting nut 102 is further screwed to firmly insert the plug into the socket. The square disc shell 201 is provided with a square disc 204 for fixing on the equipment, and the socket is fixed on the equipment through the square disc 204.

[0029] The red band 203 is wound on the outer wall of the square disc shell 201 behind the external thread. When the front end of the connecting nut 102 completely covers the red band 203 on the square disc shell 201, it indicates that the pin contact 103 has been completely inserted into the socket contact 202, and the front end of the spline shell 101 has been completely clamped in the square disc shell 201. The plug is inserted into the socket.

[0030] The front end of the spline shell 101 is provided with a grounding spring 106. The cross section of the grounding spring 106 is an outwardly convex arc-shaped piece. A plurality of arc-shaped pieces are connected end to end to form a ring-shaped grounding spring 106. After the plug is inserted into the socket, the grounding spring is compressed by the inner wall of the square disc shell 201, so that the grounding spring and the spline shell 101 and the square disc shell 201 are in firm elastic contact. Even if vibration occurs, the spline shell 101 and the square disc shell 201 can still maintain contact, achieving good grounding effect.

[0031] The first boss 104 is arranged on the front end of the spline shell 101. The first boss 104 is located on the front side of the grounding spring and is arranged on the outer side of the front end of the spline shell 101. In the embodiment, the first boss 104 is integrally arranged with the spline shell 101. In other embodiments, the first boss 104 can be arranged on the spline shell 101.

[0032] The keys on the spline housing 101 are circumferentially distributed on the first boss 104, and the keys slide in the groove of the square housing while the outer wall of the first boss 101 slides on the inner wall of the square housing.

[0033] After the plug and the socket are inserted into place, the outer wall of the first boss 104 cooperates with the inner wall of the square housing, so that the front end of the spline housing 101 is clamped with the square housing 201. However, the plug and the socket have a certain length, and only a segment of the first boss 104 contacts the square housing. In a vibrating environment, the plug and the socket still move relative to each other in a certain radial space, causing the plug and the socket to loosen, which in turn causes the contact signal transmission to be interrupted.

[0034] Therefore, in the present application, the head seat housing is contacted in two segments, so that the space in which the head seat housing can move relative to each other in the radial direction is smaller, and the anti-vibration ability is stronger.

[0035] In the present application, the outer wall of the front end of the spline housing 101 is circumferentially provided with a second boss 105, the second boss 105 is located behind the first boss 104, and a grounding spring 106 is arranged between the first boss 104 and the second boss 105. After the socket and the plug are inserted into place, the outer walls of the first boss 104 and the second boss 105 simultaneously cooperate with the inner wall of the square housing. The two ends of the part where the spline housing and the square housing are inserted into each other are provided with a segment of contact part, so that the space in which the plug and the socket are inserted into each other in the radial direction is smaller. Even in a vibrating environment, since the space in which the plug and the socket move radially is smaller, loosening between the plug and the socket can be avoided, so that the plug and the socket remain firmly connected.

[0036] When the threaded connector head seat is inserted, first, the plug and the socket are aligned, the key groove is engaged, as shown in Figure 5 , and then the connecting nut is screwed to drive the spline housing to be inserted into the square housing. The first boss 104 first contacts the inner wall of the square housing, and then the second boss 105 contacts the inner wall of the square housing. When the connecting nut of the plug completely covers the red band on the square housing, at this time, the first boss 104 and the second boss 105 simultaneously cooperate with the inner wall of the square housing, so that the spline housing and the square housing are clamped, and the head seat is inserted into place, as shown in Figure 6 .

[0037] When the plug and the socket are inserted, the gap between the outer wall of the front end of the spline shell 101 and the inner wall of the front end of the square disc shell 201 between the first boss 104 and the second boss 105 is large. During the insertion process, the gap between the head seat shells is usually large when the first section is in contact and the second section is not in contact, which facilitates the alignment, guidance and insertion of the two shells; when the second section is in contact, the gap between the head seat shells is smaller, which ensures that after the insertion is in place, the gap in the radial direction of the head seat is smaller, so the mutual movement between the head seats when vibrating is also smaller, which is beneficial to improve the anti-vibration ability.

[0038] The embodiment of the anti-vibration connector of the application is the same as the plug structure in the anti-vibration connector assembly described above. In other embodiments of the anti-vibration connector, the pin contact of the anti-vibration connector can be changed to a socket contact.

[0039] The embodiment of the anti-vibration structure of the application is used on the insertion structure which is inserted into each other, wherein the outer wall of the insertion end of one of the insertion structures is provided with two or more bosses distributed along the insertion direction, and after the insertion structure is inserted into the other insertion structure, the outer wall of the boss is in contact with the inner wall of the corresponding insertion structure, and the mutual insertion part of the two insertion structures is provided with a boss near the position of the two ends. In this embodiment, two bosses are provided on the insertion structure, and each boss is annularly arranged on the insertion structure. In other embodiments of the anti-vibration structure, the same boss can be divided into multiple sections in an annular manner, as long as at least one section of the boss is in contact with the inner wall of the other insertion structure.

[0040] Although the embodiments of the application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A vibration resistant connector comprising a spline housing, characterized by: The first boss is arranged annularly on the outer wall of the front end of the spline housing near the front end, and the second boss is arranged annularly on the outer wall of the front end of the spline housing near the rear end. The outer wall of the first boss and the second boss is in contact with the inner wall of the other connector after the anti-vibration connector is inserted into the other connector. The ground spring is sleeved on the front end of the spline housing between the first boss and the second boss. The connecting nut is rotatably arranged outside the spline housing. The inner wall of the front end of the connecting nut leaves a gap for the front end of the other connector housing to be inserted. After the connector is inserted, the front end of the spline housing is inserted into the cavity of the front end of the other connector, and the inner wall of the connecting nut is threadedly connected with the outer wall of the front end of the other connector.

2. A vibration resistant connector as claimed in claim 1, wherein: The keys on the outer wall of the front end of the spline housing are distributed circumferentially and extend axially. The inner wall of the front end of the other connector is provided with grooves matched with the keys. After the keys are inserted into the grooves, the connecting nut starts to be threadedly connected with the other connector.

3. A vibration resistant connector as claimed in claim 2, wherein: The keys on the spline housing are circumferentially distributed on the first boss.

4. A vibration resistant connector assembly characterized by: The anti-vibration connector comprises a socket which is plugged into the anti-vibration connector.

5. A vibration resistant connector assembly according to claim 4, wherein: The outer wall of the front end of the socket is provided with external threads for connecting with the connecting nut. The outer wall of the front end of the socket on the rear side of the external threads is wound with a red band. When the front end of the connecting nut completely covers the red band, the contact pin of the anti-vibration connector is completely inserted into the contact hole of the socket, and the boss of the front end of the spline housing is completely clamped in the socket. The plug and the socket are inserted into place.

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