CN116365271B

CN116365271B - Fisheye terminal and connector adopting fisheye terminal

Info

Publication number: CN116365271B
Application number: CN202310604847.XA
Authority: CN
Inventors: 袁磊; 王凯锋; 邱道权; 黄磊; 周灿
Original assignee: Hefei Zhongheng Micro Semiconductor Co ltd
Current assignee: Hefei Zhongheng Micro Semiconductor Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-08-01
Anticipated expiration: 2043-05-26
Also published as: CN116365271A

Abstract

The invention discloses a fish-eye terminal and a connector adopting the same, and relates to the field of connectors, the fish-eye terminal comprises a main body part, a plug part and a fixing part, wherein the plug part is arranged at one end of the main body part, the fixing part is arranged at the other end of the main body part, a linkage part is arranged between the plug part and the main body part, the linkage part comprises a sliding rod arranged at the inner side of the plug part along the length direction of the main body part, the sliding rod is connected with the plug part through a transmission piece and used for driving the sliding rod to move along the length direction of the main body part, and one end of the sliding rod extends into the main body part and is connected with a positioning piece for positioning the sliding rod; this fish-eye terminal and adopt this fish-eye terminal's connector, the deformation that has guaranteed four stabilizer blades through the setting of linkage portion is gone on in step to after four stabilizer blades insert inside the PCB jack, the inside tension that four directions received of PCB jack is the same, has avoided the inhomogeneous problem that causes the PCB board damage of PCB jack atress.

Description

Fisheye terminal and connector adopting fisheye terminal

Technical Field

The invention relates to a connector technology, in particular to a fisheye terminal and a connector adopting the fisheye terminal.

Background

Along with the rapid development and popularization of new energy automobiles, requirements on an automobile electrical system are higher and higher, and an electronic connector is a key component for electric power and signal transmission, and the quality of the connector directly influences the performance of the whole electrical system, so that people pay more and more attention to the reliability of the electronic connector, and in the field of the electronic connector, the fisheye terminal is widely applied and has the characteristics of small insertion force, short working procedure, vibration resistance, tolerance compensation, small damage to a printed circuit board hole and the like. When in actual use, one end is connected with the PCB board in an inserting mode, and the other end is welded on the surface of the DBC inside the IGBT module in a reflow soldering mode, so that a circuit channel is formed, and signal transmission is realized.

After the plug part of the existing fish-eye terminal is inserted into the jack on the PCB, the tension in multiple directions of the plug part is difficult to be ensured to act on the jack of the PCB on average, so that the problem that the PCB is damaged due to uneven stress of the jack of the PCB is easy to occur, the possibility that the plug part stretches out and draws back after the plug part is inserted into the jack is further caused, and the stability of connection between the plug part and the PCB is further insufficient.

Disclosure of Invention

The invention aims to provide a fish-eye terminal and a connector adopting the same, so as to solve the defects in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a fisheye terminal and adopt connector of this fisheye terminal, includes main part, plug and fixed part, plug installs the one end in main part, the other end at main part is installed to the fixed part, be provided with linkage portion between plug and the main part, linkage portion includes the slide bar of setting in plug inboard along main part length direction, the slide bar is connected with the plug through the driving medium in order to be used for driving the slide bar and remove along main part length direction, the one end of slide bar extends to the inside of main part, and is connected with the setting element that is used for carrying out the location to it.

Further, the plug portion includes four stabilizer blades, four the one end of stabilizer blade draws in together, four the other end of stabilizer blade draws in the one end of main part, four the stabilizer blade is circular-arc, and four the stabilizer blade is elastic structure.

Further, the transmission piece comprises four connecting rods hinged to the outer walls of one sides of the four supporting feet close to the sliding rods respectively and four hidden grooves formed in the outer walls of the four connecting rods along the axial direction of the sliding rods, and the other ends of the four connecting rods are hinged to the inner walls of the four hidden grooves respectively.

Further, the main body part is cylindrical structure, the inside of main body part has seted up movable groove, the inner wall that the movable groove is close to fixed part one side is gone up along main body part length direction rigid coupling has two guide arms, the slide bar sliding connection is in the outside of two guide arms.

Further, the locating piece is located the inside of movable groove, the locating piece is including seting up the constant head tank on the slide bar outer wall, along the radial elastic component of installing on the movable groove inner wall of main part and install the locating piece on the elastic component, the locating piece is located the one side that the constant head tank is close to the fixed part, the locating piece cooperatees with the constant head tank.

Further, the elastic piece comprises a telescopic rod fixedly connected to the inner wall of the movable groove and a spring sleeved outside the telescopic rod, the extension end of the telescopic rod is fixedly connected with the outer wall of the positioning block, one end of the spring is fixedly connected with the inner wall of the movable groove, and the other end of the spring is fixedly connected with the outer wall of the positioning block.

Further, the fixing part comprises a supporting part fixedly connected to the other end of the main body part and a bending part fixedly connected to the other end of the supporting part, and the bending part is of an elastic structure.

Further, a limiting block is fixedly connected on the inner wall of the concave surface of one side of the bending part, which is close to the supporting part.

A connector includes a connector housing including a fisheye terminal.

Compared with the prior art, the fish-eye terminal and the connector adopting the same, provided by the invention, have the advantages that the deformation of the four support legs is ensured to be synchronous through the arrangement of the linkage part, so that after the four support legs are inserted into the PCB jack, the tension applied to the four directions in the PCB jack is the same, and the problem that the PCB (the PCB board during installation) is damaged due to uneven stress of the PCB jack is avoided;

2. when the four support legs synchronously shrink towards the direction of the sliding rod, the sliding rod is driven to move towards the inner direction of the movable groove, when the middle position of the convex surfaces of the four support legs is just abutted against the PCB jack, the positioning groove on the sliding rod is just aligned with the positioning block, the positioning block is driven to be inserted into the positioning groove by the elastic action of the spring in cooperation with the telescopic rod, so that the positioning of the sliding rod can be completed, at the moment, the four support legs cannot stretch or shrink, the middle convex parts of the four support legs are stably connected with the PCB jack, and further, the current can be stably transmitted;

3. after the slide bar is positioned, the continuous tension of the four supporting legs is suspended, so that the problem that the PCB is affected by the continuous tension of the supporting legs is avoided, and the effect of protecting the PCB (the PCB in the normal use process) is further achieved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present invention;

FIG. 3 is a schematic cross-sectional view of a portion of a plug and linkage provided in an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of an internal structure of a main body according to an embodiment of the present invention;

fig. 5 is an enlarged schematic view of the structure at B in fig. 4 according to the present invention.

Reference numerals illustrate:

1. a main body portion; 11. a movable groove; 12. a guide rod; 2. a plug part; 21. a support leg; 3. a fixing part; 31. a support part; 32. a bending part; 33. a limiting block; 4. a linkage part; 41. a slide bar; 42. a connecting rod; 43. hiding the groove; 44. a positioning groove; 45. a positioning block; 46. a telescopic rod; 47. and (3) a spring.

Detailed Description

In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

Examples

Referring to fig. 1-3, a fisheye terminal and a connector employing the fisheye terminal, the connector comprises a main body 1, a plug 2 and a fixing part 3, the plug 2 is mounted at one end of the main body 1, the fixing part 3 is mounted at the other end of the main body 1, a linkage part 4 is arranged between the plug 2 and the main body 1, the linkage part 4 comprises a slide bar 41 arranged at the inner side of the plug 2 along the length direction of the main body 1, the slide bar 41 is connected with the plug 2 through a transmission member for driving the slide bar 41 to move along the length direction of the main body 1, one end of the slide bar 41 extends into the main body 1 and is connected with a positioning member for positioning the slide bar, the plug 2 comprises four legs 21, one ends of the four legs 21 are folded together, the other ends of the four legs 21 are folded at one end of the main body 1, the four legs 21 are all arc-shaped, the four support legs 21 are of elastic structures, the transmission part comprises four connecting rods 42 respectively hinged on the outer walls of one sides of the four support legs 21 close to the sliding rods 41 and four hidden grooves 43 axially formed on the outer walls of the four support legs 41, the hinging points of the connecting rods 42 and the support legs 21 are positioned at the midpoints of concave surfaces of the support legs 21, the other ends of the four connecting rods 42 are respectively hinged with the inner walls of the four hidden grooves 43, the four support legs 21 are extruded by the PCB jack and simultaneously shrink towards the sliding rods 41, the sliding rods 41 are driven to move towards the inner direction of the main body part 1 through the connecting action of the four connecting rods 42, in addition, the deformation of the four support legs 21 is ensured to be synchronous through the arrangement of the linkage part 4, so that after the four support legs 21 are inserted into the PCB jack, the tension applied to the four directions in the PCB jack is the same, the problem that the PCB (the PCB during installation) is damaged due to uneven stress of the PCB jack is avoided;

the main body part 1 is of a cylindrical structure, a movable groove 11 is formed in the main body part 1, two guide rods 12 are fixedly connected to the inner wall, close to one side of the fixed part 3, of the movable groove 11 along the length direction of the main body part 1, the sliding rods 41 are connected to the outer parts of the two guide rods 12 in a sliding mode, the movable groove 11 is arranged to facilitate installation of a positioning piece, the two guide rods 12 are arranged to limit the sliding direction of the sliding rods 41, and meanwhile the sliding rods 41 are prevented from rotating;

the fixing part 3 comprises a supporting part 31 fixedly connected to the other end of the main body part 1 and a bending part 32 fixedly connected to the other end of the supporting part 31, the bending part 32 is of an elastic structure, the bending part 32 is connected to the DBC board, and the bending part 32 provides a buffer effect when the PCB board is pressed down for plugging, so that the problem that the DBC ceramic layer is damaged due to large impact force of the whole fisheye terminal is prevented;

the limit block 33 is fixedly connected on the concave inner wall of the side, close to the supporting portion 31, of the bending portion 32, and the limit block 33 is used for avoiding the problem that the bending portion 32 is subjected to plastic deformation due to overlarge bending amplitude of the bending portion 32.

Examples

Referring to fig. 4-5, the present embodiment provides a technical solution based on the first embodiment: the setting element is located the inside of movable groove 11, the setting element is including seting up the constant head tank 44 on the slide bar 41 outer wall, along the radial elastic component of installing on the movable groove 11 inner wall of main part 1 and install the locating piece 45 on the elastic component, locating piece 45 is located the locating slot 44 and is close to one side of fixed part 3, locating piece 45 and locating slot 44 cooperate, the elastic component includes telescopic link 46 and the cover of rigid coupling on the movable groove 11 inner wall and establish the outside spring 47 of telescopic link 46, the extension end of telescopic link 46 and the outer wall rigid coupling of locating piece 45, the one end and the inner wall rigid coupling of movable groove 11 of spring 47, the other end and the outer wall rigid coupling of locating piece 47, when four stabilizer blade 21 are synchronous when contracting towards slide bar 41 direction, the constant head tank 41 moves to the inside direction of movable groove 11, the intermediate position just with PCB jack butt time of four stabilizer blade 21, locating slot 44 on the slide bar 41 just aligns with locating piece 45, the elastic action cooperation telescopic link 46 drive 45 inserts the inside of locating slot 44 this moment through spring 47, can accomplish the location to 41, four stabilizer blade 21 can't stretch or shrink, and then the intermediate part and the stabilizer blade 21 can continue the tension of four stabilizer blade 21 is continued to be influenced by the PCB in the jack, and the normal tension of the PCB has further, and the problem of the PCB has been continued is further avoided in the PCB has been continued to be influenced by the stabilizer blade 21, and the PCB has been further used the normal tension in the PCB has been further to the PCB has continued to be continued to the problem.

A connector comprises a connector housing, wherein the connector housing comprises the fish-eye terminal in the technical scheme.

Working principle: when the plug part 2 is inserted into the PCB jack, the four support legs 21 are extruded by the PCB jack and then simultaneously shrink towards the direction of the slide bar 41 until the middle points of the convex surfaces of the four support legs 21 are abutted against the PCB jack, in the process, the slide bar 41 is driven to move towards the inner direction of the main body part 1 through the connection effect of the four connecting rods 42, in addition, the deformation of the four support legs 21 is ensured to be synchronous through the arrangement of the linkage part 4, so that after the four support legs 21 are inserted into the PCB jack, the tension applied to the four directions in the PCB jack is the same, and the problem that the PCB (the PCB board during installation) is damaged due to uneven stress of the PCB jack is avoided;

when the four support legs 21 synchronously shrink towards the sliding rod 41, the sliding rod 41 is driven to move towards the inner direction of the movable groove 11, when the middle position of the convex surfaces of the four support legs 21 is just abutted against the PCB jack, the positioning groove 44 on the sliding rod 41 is just aligned with the positioning block 45, the positioning block 45 is driven to be inserted into the positioning groove 44 by the elastic action of the spring 47 in cooperation with the telescopic rod 46, so that the positioning of the sliding rod 41 can be finished, at the moment, the four support legs 21 cannot be stretched or shrunk, and further, the middle convex parts of the four support legs 21 are stably connected with the PCB jack, so that current can be stably transmitted;

in addition, after the slide bar 41 is positioned, the continuous tension of the four support legs 21 is suspended, so that the problem that the PCB is affected by the continuous tension of the support legs 21 is avoided, and the function of protecting the PCB (the PCB in the normal use process) is further played.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.

Claims

1. The fish eye terminal comprises a main body part (1), a plug part (2) and a fixing part (3), and is characterized in that the plug part (2) is arranged at one end of the main body part (1), the fixing part (3) is arranged at the other end of the main body part (1), a linkage part (4) is arranged between the plug part (2) and the main body part (1), the linkage part (4) comprises a sliding rod (41) arranged at the inner side of the plug part (2) along the length direction of the main body part (1), the sliding rod (41) is connected with the plug part (2) through a transmission piece for driving the sliding rod (41) to move along the length direction of the main body part (1), and one end of the sliding rod (41) extends to the inside of the main body part (1) and is connected with a positioning piece for positioning the sliding rod;

the plug part (2) comprises four supporting legs (21), one ends of the four supporting legs (21) are folded together, the other ends of the four supporting legs (21) are folded at one end of the main body part (1), the four supporting legs (21) are all arc-shaped, and the four supporting legs (21) are of elastic structures;

the transmission piece comprises four connecting rods (42) hinged to the outer walls of one sides of the four supporting legs (21) close to the sliding rod (41) respectively, and four hiding grooves (43) axially formed in the outer walls of the sliding rod (41), and the other ends of the four connecting rods (42) are hinged to the inner walls of the four hiding grooves (43) respectively.

2. The fish-eye terminal according to claim 1, wherein a movable groove (11) is formed in the main body (1), two guide rods (12) are fixedly connected to the inner wall of the movable groove (11) close to one side of the fixed portion (3) along the length direction of the main body (1), and the sliding rod (41) is slidably connected to the outer parts of the two guide rods (12).

3. A fish-eye terminal according to claim 2, wherein the positioning member is located inside the movable slot (11), the positioning member comprises a positioning slot (44) formed on the outer wall of the sliding rod (41), an elastic member radially mounted on the inner wall of the movable slot (11) along the main body (1), and a positioning block (45) mounted on the elastic member, the positioning block (45) is located on one side of the positioning slot (44) close to the fixed portion (3), and the positioning block (45) is matched with the positioning slot (44).

4. A fish-eye terminal according to claim 3, wherein the main body (1) is of a cylindrical structure, the elastic element comprises a telescopic rod (46) fixedly connected to the inner wall of the movable groove (11) and a spring (47) sleeved outside the telescopic rod (46), the extension end of the telescopic rod (46) is fixedly connected with the outer wall of the positioning block (45), one end of the spring (47) is fixedly connected with the inner wall of the movable groove (11), and the other end of the spring (47) is fixedly connected with the outer wall of the positioning block (45).

5. A fish-eye terminal according to claim 1, wherein the fixing portion (3) comprises a supporting portion (31) fixedly connected to the other end of the main body portion (1) and a bending portion (32) fixedly connected to the other end of the supporting portion (31), and the bending portion (32) is of an elastic structure.

6. The fish-eye terminal according to claim 5, wherein a limiting block (33) is fixedly connected to the inner wall of the concave surface of the side, close to the supporting part (31), of the bending part (32).

7. A connector comprising a connector housing, wherein the connector housing comprises the fisheye terminal of any one of claims 1-6.