Connector housing and connector

Abstract

The invention discloses a connector housing and a connector. The connector housing comprises: a peripheral wall, which defines an inner cavity for inserting an outer terminal of a connector, and is provided with a secondary locking slot communicated with the inner cavity; the primary lock is formed inside the peripheral wall and is suitable for axially abutting against a first positioning flange of an outer terminal inserted into the inner cavity so as to lock the outer terminal in the inner cavity; and the secondary lock is formed outside the peripheral wall and is suitable for moving between a locking position jointed with the secondary lock clamping groove and an unlocking position separated from the secondary lock clamping groove. When the secondary lock is located at the locking position, the secondary lock is suitable for axially abutting against a first positioning flange of an outer terminal inserted into the inner cavity so as to lock the outer terminal in the inner cavity. According to the invention, before the secondary lock is locked, the outer terminal is kept in the connector shell by the primary lock and does not move, so that the installation quality of the connector is ensured.

Description

Technical Field

[0001] The present invention relates to a connector housing and a connector including the connector housing. Background Art

[0002] In the prior art, a coaxial connector generally includes a housing, an outer terminal, an insulating core, a center terminal (or inner terminal), and a cable. The outer terminal, the insulating core, the center terminal, and the cable are pre-assembled into an electrical connection module, and then the electrical connection module is inserted into the housing. The center terminal is inserted into the insulating core, and the insulating core is inserted into the outer terminal. The rear end of the center terminal is welded to the conductor core of the cable, and the front end of the center terminal is used for electrical contact with a mating center terminal. The rear end of the outer terminal is fixed to the cable and electrically connected to the shielding layer of the cable.

[0003] In the prior art, when welding the rear end of the center terminal, solder, such as solder and flux, will flow along the central through hole of the center terminal to the front end, which will affect the electrical contact performance between the center terminal and the mating center terminal. In addition, in the prior art, it is difficult to ensure that the diameters of the two positioning flanges on the outer terminal are the same, which will cause the outer terminal to tilt during insertion, and it is easy to damage the elastic arms of the outer terminal. In addition, in the prior art, the outer terminal will shake in the housing, which will cause unstable electrical contact and easily lead to signal interruption. In addition, in the prior art, there is no primary lock in the housing that can be used to lock the outer terminal, which causes the outer terminal to move before the secondary lock is latched, affecting the installation quality of the connector. In addition, the existing outer terminal is difficult to manufacture, has a high cost, and has a large axial length. Summary of the Invention

[0004] The object of the present invention aims to solve at least one of the above problems and defects existing in the prior art.

[0005] According to one aspect of the present invention, there is provided a connector housing. The connector housing includes: a peripheral wall that defines an inner cavity for inserting an outer terminal of the connector and forms a secondary lock slot communicating with the inner cavity thereon; a primary lock formed inside the peripheral wall and adapted to axially abut against a first positioning flange of the outer terminal inserted into the inner cavity to lock the outer terminal in the inner cavity; and a secondary lock formed outside the peripheral wall and adapted to move between a locked position engaged with the secondary lock slot and an unlocked position separated from the secondary lock slot. When the secondary lock is in the locked position, the secondary lock is adapted to axially abut against a first positioning flange of the outer terminal inserted into the inner cavity to lock the outer terminal in the inner cavity.

[0006] According to an exemplary embodiment of the present invention, the connector housing has a front port and a rear port that are axially opposite to each other. The outer terminal is inserted into the inner cavity from the rear port. The primary lock and the secondary lock are adapted to axially abut against the rear side of the first positioning flange of the outer terminal inserted into the inner cavity to prevent the outer terminal from being pulled out from the rear port.

[0007] According to another exemplary embodiment of the present invention, a positioning step is formed inside the peripheral wall. The positioning step has a positioning surface perpendicular to the axial direction of the connector housing. The positioning surface is adapted to axially abut against the front side of the first positioning flange of the outer terminal inserted into the inner cavity to axially position the outer terminal.

[0008] According to another exemplary embodiment of the present invention, the connector housing includes one primary lock and one secondary lock, and the one primary lock and the one secondary lock are radially opposite to each other in the inner cavity.

[0009] According to another exemplary embodiment of the present invention, the primary lock includes: a spring arm portion, whose root is connected to the peripheral wall and extends forward along the axial direction from its root by a predetermined length; and a protrusion portion, formed at the end of the spring arm portion and protruding into the inner cavity. The protrusion portion is adapted to axially abut against the rear side of the first positioning flange of the outer terminal inserted into the inner cavity to lock the outer terminal in the inner cavity.

[0010] According to another exemplary embodiment of the present invention, the protrusion portion has a front end surface perpendicular to the axial direction of the connector housing. The front end surface of the protrusion portion is axially opposite to the positioning surface of the positioning step and is adapted to axially abut against the rear side of the first positioning flange of the outer terminal inserted into the inner cavity.

[0011] According to another exemplary embodiment of the present invention, an opening corresponding to the primary lock is formed in the peripheral wall, so that the primary lock can be driven from the locked position engaged with the first positioning flange of the outer terminal to the unlocked position separated from the first positioning flange of the outer terminal by inserting an unlocking tool into the opening.

[0012] According to another exemplary embodiment of the present invention, the secondary lock includes: a cantilever portion, whose root is connected to the peripheral wall and extends forward from its root by a predetermined length; and a hook portion, connected to the end of the cantilever portion and adapted to be snapped into the secondary lock card slot. When the secondary lock is in the locked position, the hook portion is snapped into the secondary lock card slot and is adapted to axially abut against the rear side of the first positioning flange of the outer terminal inserted into the inner cavity to lock the outer terminal in the inner cavity.

[0013] According to another exemplary embodiment of the present invention, the hook portion has a limiting surface; when the hook portion is snapped into the secondary locking groove, the limiting surface is perpendicular to the axial direction of the connector housing and axially opposite to the positioning surface of the positioning step, and is used for axially abutting against the rear side surface of the first positioning flange of the outer terminal inserted into the inner cavity.

[0014] According to another exemplary embodiment of the present invention, the connector housing includes a pair of primary locks and a pair of secondary locks, and the connector housing has a pair of secondary locking grooves respectively corresponding to the pair of secondary locks; the pair of primary locks are opposite to each other in the first radial direction of the inner cavity, the pair of secondary locks are opposite to each other in the second radial direction of the inner cavity, and the first radial direction is perpendicular to the second radial direction.

[0015] According to another exemplary embodiment of the present invention, the primary lock includes: a locking protrusion, which is convexly formed on the inner peripheral surface of the inner cavity, and the locking protrusion is adapted to axially abut against the rear side surface of the first positioning flange of the outer terminal inserted into the inner cavity to lock the outer terminal in the inner cavity.

[0016] According to another exemplary embodiment of the present invention, the locking protrusion has a smoothly transitioning arc-shaped front side surface and an arc-shaped rear side surface, so that the first positioning flange of the outer terminal can cross over the locking protrusion under the action of a predetermined axial force, such that the unlocking operation of the primary lock does not require any unlocking tool.

[0017] According to another exemplary embodiment of the present invention, the secondary lock includes: a cantilever portion, whose root is connected to the peripheral wall and extends forward from its root by a predetermined length; and a hook portion, which is connected to the end of the cantilever portion and is adapted to be snapped into the secondary locking groove. When the secondary lock is in the locked position, the hook portion is snapped into the secondary locking groove and is adapted to axially abut against the rear side surface of the first positioning flange of the outer terminal inserted into the inner cavity to lock the outer terminal in the inner cavity.

[0018] According to another exemplary embodiment of the present invention, the hook portion has a limiting surface; when the hook portion is snapped into the secondary locking groove, the limiting surface is perpendicular to the axial direction of the connector housing and axially opposite to the positioning surface of the positioning step, and is used for axially abutting against the rear side surface of the first positioning flange of the outer terminal inserted into the inner cavity.

[0019] According to another exemplary embodiment of the present invention, the connector housing is an integrally injection-molded part.

[0020] According to another aspect of the present invention, a connector is provided. The connector includes: the aforementioned connector housing; and an electrical connection module inserted into the inner cavity of the connector housing. The electrical connection module includes: an outer terminal formed with a first positioning flange having a radial protrusion; an insulating core inserted into the outer terminal; and a center terminal inserted into the insulating core. The primary lock and secondary lock of the connector housing axially abut against the first positioning flange of the outer terminal to lock the electrical connection module in the inner cavity of the connector housing.

[0021] According to an exemplary embodiment of the present invention, the center terminal includes: a tubular portion having a front end and a rear end opposite to each other in its axial direction and a central through hole extending between the front end and the rear end; a welding end connected to the rear end of the tubular portion for welding to the conductor core of a cable; and a contact end connected to the front end of the tubular portion for mating and making electrical contact with a mating center terminal. A window and a blocking portion connected to the side of the window are formed on the peripheral wall of the tubular portion. The blocking portion is bent into the central through hole via the window and at least partially blocks the central through hole, so that solder cannot flow to the contact end via the central through hole when welding the welding end.

[0022] According to another exemplary embodiment of the present invention, the connector further includes: a cable having a conductor core. The welding end of the center terminal is welded to the conductor core of the cable. The outer terminal is sleeved on the insulating core and electrically connected to the shielding layer of the cable for mating and making electrical contact with a mating outer terminal.

[0023] According to another exemplary embodiment of the present invention, the outer terminal includes: a cylindrical body having a front end and a rear end opposite to each other in its axial direction. The front end portion of the cylindrical body is used for mating and making electrical contact with the mating outer terminal. The rear end portion of the cylindrical body is sleeved on the cable and welded to the shielding layer of the cable.

[0024] According to another exemplary embodiment of the present invention, the first positioning flange is formed on the outer peripheral surface of the cylindrical body and is located at an intermediate position between the front end portion and the rear end portion of the cylindrical body; a second positioning flange is formed at the rear end of the cylindrical body. The outer peripheral surfaces of the first positioning flange and the second positioning flange abut against the inner peripheral surface of the inner cavity of the connector housing to radially position the outer terminal.

[0025] According to another exemplary embodiment of the present invention, the outer peripheral surfaces of the first positioning flange and the second positioning flange have the same central axis and the same diameter, so that the electrical connection module positioned in the connector housing will not tilt or shake.

[0026] According to another exemplary embodiment of the present invention, the first positioning flange extends continuously in the circumferential direction of the cylindrical body, such that the first positioning flange is annular; a plurality of slotted openings are formed in the second positioning flange, and the plurality of slotted openings are spaced apart in the circumferential direction of the cylindrical body.

[0027] According to another exemplary embodiment of the present invention, the outer terminal is a one-piece stamping; and / or the center terminal is a one-piece stamping.

[0028] In each of the foregoing exemplary embodiments of the present invention, before the secondary locking of the latch, the outer terminal is held in the connector housing by the primary locking and does not move, thus ensuring the installation quality of the connector.

[0029] In addition, in some of the foregoing exemplary embodiments of the present invention, the center terminal has a blocking portion for blocking the flow of solder to the contact end, and thus, the electrical contact performance of the contact end of the center terminal is not affected.

[0030] In addition, in some of the foregoing exemplary embodiments of the present invention, the outer diameters of the two positioning flanges on the outer terminal are the same, and the outer terminal does not tilt or shake in the housing.

[0031] In addition, in some of the foregoing exemplary embodiments of the present invention, a plurality of slotted openings are formed in the positioning flange at the rear end of the outer terminal, and thus, the manufacturing difficulty of the outer terminal can be reduced, the length of the outer terminal can be shortened, and the manufacturing cost can be reduced.

[0032] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A perspective view showing a connector according to a first exemplary embodiment of the present invention, wherein the secondary lock is in the unlocked position;

[0034] Figure 2 An axial cross-sectional view showing a connector according to a first exemplary embodiment of the present invention, wherein the secondary lock is in the unlocked position;

[0035] Figure 3 An axial cross-sectional view showing a connector housing according to a first exemplary embodiment of the present invention, wherein the secondary lock is in the unlocked position;

[0036] Figure 4 A plan cross-sectional view showing a connector according to a first exemplary embodiment of the present invention, wherein the secondary lock is in the unlocked position;

[0037] Figure 5Shows a plan view cross-section of a connector housing according to a first exemplary embodiment of the present invention, wherein the secondary lock is in the unlocked position;

[0038] Figure 6 Shows a plan view cross-section of an electrical connection module of a connector according to a first exemplary embodiment of the present invention;

[0039] Figure 7 Shows a plan view cross-section of a connector according to a first exemplary embodiment of the present invention, wherein the secondary lock is in the locked position;

[0040] Figure 8 Shows a perspective view of an electrical connection module of a connector according to a first exemplary embodiment of the present invention;

[0041] Figure 9 Shows an axial cross-section of a central terminal and a cable of a connector according to a first exemplary embodiment of the present invention;

[0042] Figure 10 Shows a perspective view of a connector according to a second exemplary embodiment of the present invention, wherein the secondary lock is in the unlocked position;

[0043] Figure 11 Shows an axial cross-section of a connector according to a second exemplary embodiment of the present invention, wherein the secondary lock is in the unlocked position;

[0044] Figure 12 Shows another axial cross-section of a connector according to a second exemplary embodiment of the present invention, wherein the primary lock is shown;

[0045] Figure 13 Shows an axial cross-section of a connector housing according to a second exemplary embodiment of the present invention, wherein the secondary lock is in the unlocked position;

[0046] Figure 14 Shows a plan view cross-section of a connector housing according to a second exemplary embodiment of the present invention, wherein the secondary lock is in the unlocked position;

[0047] Figure 15 Shows a plan view cross-section of a connector according to a second exemplary embodiment of the present invention, wherein the secondary lock is in the locked position;

[0048] Figure 16 Shows a plan view cross-section of an electrical connection module of a connector according to a second exemplary embodiment of the present invention;

[0049] Figure 17 Shows a perspective view of an electrical connection module of a connector according to a second exemplary embodiment of the present invention;

[0050] Figure 18 An axial cross-sectional view of a center terminal of a connector and a cable showing a second exemplary embodiment of the present invention. Detailed Description of the Invention

[0051] The technical solution of the present invention will be further specifically described below by way of embodiments in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0052] In addition, in the following detailed description, for the purpose of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. However, it is obvious that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are illustrated in a schematic manner to simplify the drawings.

[0053] According to one general inventive concept of the present invention, there is provided a connector housing. The connector housing includes: a peripheral wall that defines an inner cavity for inserting an outer terminal of the connector and forms a secondary lock slot communicating with the inner cavity thereon; a primary lock formed inside the peripheral wall and adapted to axially abut against a first positioning flange of the outer terminal inserted into the inner cavity to lock the outer terminal in the inner cavity; and a secondary lock formed outside the peripheral wall and adapted to move between a locked position engaging with the secondary lock slot and an unlocked position separated from the secondary lock slot. When the secondary lock is in the locked position, the secondary lock is adapted to axially abut against a first positioning flange of the outer terminal inserted into the inner cavity to lock the outer terminal in the inner cavity.

[0054] According to another general inventive concept of the present invention, there is provided a connector. The connector includes: the aforementioned connector housing; and an electrical connection module inserted into the inner cavity of the connector housing. The electrical connection module includes: an outer terminal formed with a radially protruding first positioning flange; an insulating core inserted into the outer terminal; and a center terminal inserted into the insulating core, and the primary lock and the secondary lock of the connector housing axially abut against the first positioning flange of the outer terminal to lock the electrical connection module in the inner cavity of the connector housing.

[0055] First Embodiment

[0056] Figures 1 to 9 A connector according to a first embodiment of the present invention is shown. Among them, Figure 1 A perspective schematic view of a connector showing a first exemplary embodiment of the present invention, wherein the secondary lock 12 is in the unlocked position; Figure 2Shows an axial cross-sectional view of a connector according to a first exemplary embodiment of the present invention, where the secondary lock 12 is in the unlocked position; Figure 3 Shows an axial cross-sectional view of a connector housing 1 according to a first exemplary embodiment of the present invention, where the secondary lock 12 is in the unlocked position; Figure 4 Shows a plan cross-sectional view of a connector according to a first exemplary embodiment of the present invention, where the secondary lock 12 is in the unlocked position; Figure 5 Shows a plan cross-sectional view of a connector housing 1 according to a first exemplary embodiment of the present invention, where the secondary lock 12 is in the unlocked position; Figure 6 Shows a plan cross-sectional view of an electrical connection module 100 of a connector according to a first exemplary embodiment of the present invention; Figure 7 Shows a plan cross-sectional view of a connector according to a first exemplary embodiment of the present invention, where the secondary lock 12 is in the locked position; Figure 8 Shows a perspective schematic view of an electrical connection module 100 of a connector according to a first exemplary embodiment of the present invention; Figure 9 Shows an axial cross-sectional view of a central terminal 4 and a cable 5 of a connector according to a first exemplary embodiment of the present invention.

[0057] As Figures 1 to 9 Shown, in an exemplary embodiment of the present invention, a connector housing 1 is disclosed. The connector housing 1 includes: a peripheral wall 10, a primary lock 11, and a secondary lock 12. The peripheral wall 10 defines an inner cavity 101 for inserting an outer terminal 2 of the connector, and a secondary lock slot 10b communicating with the inner cavity 101 is formed on the peripheral wall 10. The primary lock 11 is formed inside the peripheral wall 10 and is adapted to axially abut against a first positioning flange 21 of the outer terminal 2 inserted into the inner cavity 101 to lock the outer terminal 2 in the inner cavity 101. The secondary lock 12 is formed outside the peripheral wall 10 and is adapted to move between a locked position engaging with the secondary lock slot 10b and an unlocked position separated from the secondary lock slot 10b. In the illustrated embodiment, when the secondary lock 12 is in the locked position, the secondary lock 12 is adapted to axially abut against a first positioning flange 21 of the outer terminal 2 inserted into the inner cavity 101 to lock the outer terminal 2 in the inner cavity 101.

[0058] As Figures 1 to 9 Shown, in the illustrated embodiment, the connector housing 1 has a front port and a rear port axially opposite to each other, the outer terminal 2 is inserted into the inner cavity 101 from the rear port, and the primary lock 11 and the secondary lock 12 are adapted to axially abut against the rear side surface 21b of a first positioning flange 21 of the outer terminal 2 inserted into the inner cavity 101 to prevent the outer terminal 2 from being pulled out from the rear port.

[0059] As Figures 1 to 9As shown, in the illustrated embodiment, a positioning step 13 is formed inside the peripheral wall 10. The positioning step 13 has a positioning surface 13c perpendicular to the axial direction of the connector housing 1. The positioning surface 13c is adapted to axially abut against the front side surface 21a of the first positioning flange 21 of the outer terminal 2 inserted into the insertion lumen 101 to axially position the outer terminal 2.

[0060] As Figures 1 to 9 shown, in the illustrated embodiment, the connector housing 1 includes a primary lock 11 and a secondary lock 12, and the primary lock 11 and the secondary lock 12 are radially opposite to each other within the lumen 101.

[0061] As Figures 1 to 9 shown, in the illustrated embodiment, the primary lock 11 includes: a spring arm portion 11a and a protrusion portion 11b. The root of the spring arm portion 11a is connected to the peripheral wall 10 and extends axially forward from its root by a predetermined length. The protrusion portion 11b is formed at the end of the spring arm portion 11a and protrudes into the lumen 101. The protrusion portion 11b is adapted to axially abut against the rear side surface 21b of the first positioning flange 21 of the outer terminal 2 inserted into the lumen 101 to lock the outer terminal 2 within the lumen 101.

[0062] As Figures 1 to 9 shown, in the illustrated embodiment, the protrusion portion 11b has a front end surface 11c perpendicular to the axial direction of the connector housing 1. The front end surface 11c of the protrusion portion 11b is axially opposite to the positioning surface 13c of the positioning step 13 and is adapted to axially abut against the rear side surface 21b of the first positioning flange 21 of the outer terminal 2 inserted into the lumen 101.

[0063] As Figures 1 to 9 shown, in the illustrated embodiment, an opening corresponding to the primary lock 11 is formed in the peripheral wall 10, such that the primary lock 11 can be driven from the locked position engaged with the first positioning flange 21 of the outer terminal 2 to the unlocked position separated from the first positioning flange 21 of the outer terminal 2 by an unlocking tool inserted into the opening.

[0064] As Figures 1 to 9 shown, in the illustrated embodiment, the secondary lock 12 includes: a cantilever portion 12a and a hook portion 12b. The root of the cantilever portion 12a is connected to the peripheral wall 10 and extends forward from its root by a predetermined length. The hook portion 12b is connected to the end of the cantilever portion 12a and is adapted to be snapped into the secondary lock card slot 10b. When the secondary lock 12 is in the locked position, the hook portion 12b is snapped into the secondary lock card slot 10b and is adapted to axially abut against the rear side surface 21b of the first positioning flange 21 of the outer terminal 2 inserted into the lumen 101 to lock the outer terminal 2 within the lumen 101.

[0065] As Figures 1 to 9As shown, in the illustrated embodiment, the hook portion 12b has a limiting surface 12c. When the hook portion 12b is snapped into the secondary lock slot 10b, the limiting surface 12c is perpendicular to the axis of the connector housing 1 and axially opposite to the positioning surface 13c of the positioning step 13, and is used to axially abut against the rear side surface 21b of the first positioning flange 21 of the outer terminal 2 inserted into the insertion cavity 101.

[0066] As Figures 1 to 9 shown, in the illustrated embodiment, the connector housing 1 is an integrally injection-molded part.

[0067] As Figures 1 to 9 shown, in another exemplary embodiment of the present invention, a connector is also disclosed. The connector mainly includes: a connector housing 1 and an electrical connection module 100. The electrical connection module 100 is inserted into the inner cavity 101 of the connector housing 1. The electrical connection module 100 includes: an outer terminal 2, an insulating core 3, and a center terminal 4. The outer terminal 2 is formed with a first positioning flange 21 that protrudes radially. The insulating core 3 is inserted into the outer terminal 2. The center terminal 4 is inserted into the insulating core 3. The primary lock 11 and the secondary lock 12 of the connector housing 1 axially abut against the first positioning flange 21 of the outer terminal 2 to lock the electrical connection module 100 in the inner cavity 101 of the connector housing 1.

[0068] As Figures 1 to 9 shown, in the illustrated embodiment, the center terminal 4 includes: a tubular portion 40, a welding end 41, and a contact end 42. The tubular portion 40 has a front end and a rear end that are axially opposite to each other and a central through hole 401 that extends between the front end and the rear end. The welding end 41 is connected to the rear end of the tubular portion 40 and is used for welding to the conductor core 51 of the cable 5. The contact end 42 is connected to the front end of the tubular portion 40 and is used for mating and making electrical contact with a mating center terminal (not shown). A window 402 and a blocking portion 43 connected to the side of the window 402 are formed on the peripheral wall 10 of the tubular portion 40. The blocking portion 43 is bent into the central through hole 401 through the window 402 and at least partially blocks the central through hole 401, so that when welding the aforementioned welding end 41, the solder cannot flow to the contact end 42 through the central through hole 401.

[0069] As Figures 1 to 9 shown, in the illustrated embodiment, the connector further includes a cable 5, and the cable 5 has a conductor core 51. The welding end 41 of the center terminal 4 is welded to the conductor core 51 of the cable 5. The outer terminal 2 is sleeved on the insulating core 3 and is electrically connected to the shielding layer 52 of the cable 5, and is used for mating and making electrical contact with a mating outer terminal (not shown).

[0070] As Figures 1 to 9As shown, in the illustrated embodiment, the outer terminal 2 includes a cylindrical body 20 having a front end and a rear end opposite to each other in its axial direction. The front end portion of the cylindrical body 20 is for mating and making electrical contact with a mating outer terminal, and the rear end portion of the cylindrical body 20 is sleeved on the cable 5 and welded to the shielding layer 52 of the cable 5.

[0071] As Figures 1 to 9 shown, in the illustrated embodiment, a first positioning flange 21 is formed on the outer peripheral surface of the cylindrical body 20 and is located at an intermediate position between the front end portion and the rear end portion of the cylindrical body 20. A second positioning flange 22 is formed at the rear end of the cylindrical body 20, and the outer peripheral surfaces of the first positioning flange 21 and the second positioning flange 22 abut against the inner peripheral surface of the inner cavity 101 of the connector housing 1 to radially position the outer terminal 2.

[0072] As Figures 1 to 9 shown, in the illustrated embodiment, the outer peripheral surfaces of the first positioning flange 21 and the second positioning flange 22 have the same central axis and the same diameter, so that the electrical connection module 100 positioned within the connector housing 1 will not tilt or shake.

[0073] As Figures 1 to 9 shown, in the illustrated embodiment, the first positioning flange 21 continuously extends in the circumferential direction of the cylindrical body 20, so that the first positioning flange 21 is in a circular ring shape. A plurality of slots 22a are formed in the second positioning flange 22, and the plurality of slots 22a are spaced apart in the circumferential direction of the cylindrical body 20.

[0074] As Figures 1 to 9 shown, in the illustrated embodiment, the outer terminal 2 is a one-piece stamping. The center terminal 4 is a one-piece stamping. In the illustrated embodiment, the window 402 on the center terminal 4 is a punching cutout produced when stamping the blocking portion 43, rather than a deliberately formed window 402. That is, the material corresponding to the window 402 is stamped into the blocking portion 43.

[0075] Second Embodiment

[0076] Figures 10 to 18 Shows a connector according to a second embodiment of the present invention. Among them, Figure 10 A perspective schematic view showing a connector according to a second exemplary embodiment of the present invention, where the secondary lock 12 is in an unlocked position; Figure 11 An axial sectional view showing a connector according to a second exemplary embodiment of the present invention, where the secondary lock 12 is in an unlocked position; Figure 12 Another axial sectional view showing a connector according to a second exemplary embodiment of the present invention, where the primary lock 11 is shown; Figure 13An axial sectional view of a connector housing 1 according to a second exemplary embodiment of the present invention is shown, where the secondary lock 12 is in the unlocked position; Figure 14 A plan sectional view of a connector housing 1 according to a second exemplary embodiment of the present invention is shown, where the secondary lock 12 is in the unlocked position; Figure 15 A plan sectional view of a connector according to a second exemplary embodiment of the present invention is shown, where the secondary lock 12 is in the locked position; Figure 16 A plan sectional view of an electrical connection module 100 of a connector according to a second exemplary embodiment of the present invention is shown; Figure 17 A perspective schematic view of an electrical connection module 100 of a connector according to a second exemplary embodiment of the present invention is shown; Figure 18 An axial sectional view of a central terminal 4 and a cable 5 of a connector according to a second exemplary embodiment of the present invention is shown.

[0077] As Figures 10 to 18 shown, in an exemplary embodiment of the present invention, a connector housing 1 is disclosed. The connector housing 1 includes: a peripheral wall 10, a primary lock 11, and a secondary lock 12. The peripheral wall 10 defines an inner cavity 101 for inserting an outer terminal 2 of the connector, and a secondary lock slot 10b communicating with the inner cavity 101 is formed on the peripheral wall 10. The primary lock 11 is formed inside the peripheral wall 10 and is adapted to axially abut against a first positioning flange 21 of the outer terminal 2 inserted into the inner cavity 101 to lock the outer terminal 2 in the inner cavity 101. The secondary lock 12 is formed outside the peripheral wall 10 and is adapted to move between a locked position engaging with the secondary lock slot 10b and an unlocked position separated from the secondary lock slot 10b. In the illustrated embodiment, when the secondary lock 12 is in the locked position, the secondary lock 12 is adapted to axially abut against a first positioning flange 21 of the outer terminal 2 inserted into the inner cavity 101 to lock the outer terminal 2 in the inner cavity 101.

[0078] As Figures 10 to 18 shown, in the illustrated embodiment, the connector housing 1 has a front port and a rear port axially opposite to each other, the outer terminal 2 is inserted into the inner cavity 101 from the rear port, and the primary lock 11 and the secondary lock 12 are adapted to axially abut against a rear side surface 21b of a first positioning flange 21 of the outer terminal 2 inserted into the inner cavity 101 to prevent the outer terminal 2 from being pulled out from the rear port.

[0079] As Figures 10 to 18 shown, in the illustrated embodiment, a positioning step 13 is formed inside the peripheral wall 10, the positioning step 13 has a positioning surface 13c perpendicular to the axis of the connector housing 1, and the positioning surface 13c is adapted to axially abut against a front side surface 21a of a first positioning flange 21 of the outer terminal 2 inserted into the inner cavity 101 to axially position the outer terminal 2.

[0080] As Figures 10 to 18As shown, in the illustrated embodiment, the connector housing 1 includes a pair of primary locks 11 and a pair of secondary locks 12, and the connector housing 1 has a pair of secondary lock slots 10b respectively corresponding to the pair of secondary locks 12. The pair of primary locks 11 are opposite to each other in the first radial direction of the inner cavity 101, the pair of secondary locks 12 are opposite to each other in the second radial direction of the inner cavity 101, and the first radial direction is perpendicular to the second radial direction.

[0081] As Figures 10 to 18 shown, in the illustrated embodiment, the primary lock 11 includes a locking projection 11', which is formed protruding on the inner peripheral surface of the inner cavity 101. The locking projection 11' is adapted to axially abut against the rear side surface 21b of the first positioning flange 21 of the outer terminal 2 inserted into the inner cavity 101 to lock the outer terminal 2 in the inner cavity 101.

[0082] As Figures 10 to 18 shown, in the illustrated embodiment, the locking projection 11' has a smoothly transitioning arcuate front side surface 11a' and an arcuate rear side surface 11b', such that the first positioning flange 21 of the outer terminal 2 can cross over the locking projection 11' under the action of a predetermined axial force, so that the unlocking operation of the primary lock 11 does not require any unlocking tool. Thus, the unlocking operation of the primary lock 11 can be simplified.

[0083] As Figures 10 to 18 shown, in the illustrated embodiment, the secondary lock 12 includes: a cantilever portion 12a and a hook portion 12b. The root of the cantilever portion 12a is connected to the peripheral wall 10 and extends forward from its root by a predetermined length. The hook portion 12b is connected to the end of the cantilever portion 12a and is adapted to be snapped into the secondary lock slot 10b. When the secondary lock 12 is in the locked position, the hook portion 12b is snapped into the secondary lock slot 10b and is adapted to axially abut against the rear side surface 21b of the first positioning flange 21 of the outer terminal 2 inserted into the inner cavity 101 to lock the outer terminal 2 in the inner cavity 101.

[0084] As Figures 10 to 18 shown, in the illustrated embodiment, the hook portion 12b has a limiting surface 12c. When the hook portion 12b is snapped into the secondary lock slot 10b, the limiting surface 12c is perpendicular to the axis of the connector housing 1 and is axially opposite to the positioning surface 13c of the positioning step 13, and is used to axially abut against the rear side surface 21b of the first positioning flange 21 of the outer terminal 2 inserted into the inner cavity 101.

[0085] As Figures 10 to 18 shown, in the illustrated embodiment, the connector housing 1 is an integrally injection-molded part.

[0086] As Figures 10 to 18As shown, in another exemplary embodiment of the present invention, a connector is also disclosed. The connector mainly includes: a connector housing 1 and an electrical connection module 100. The electrical connection module 100 is inserted into the inner cavity 101 of the connector housing 1. The electrical connection module 100 includes: an outer terminal 2, an insulating core 3, and a center terminal 4. The outer terminal 2 is formed with a first positioning flange 21 protruding radially. The insulating core 3 is inserted into the outer terminal 2. The center terminal 4 is inserted into the insulating core 3. The primary lock 11 and the secondary lock 12 of the connector housing 1 axially abut against the first positioning flange 21 of the outer terminal 2 to lock the electrical connection module 100 in the inner cavity 101 of the connector housing 1.

[0087] As Figures 10 to 18 shown, in the illustrated embodiment, the center terminal 4 includes: a tubular portion 40, a welding end 41, and a contact end 42. The tubular portion 40 has a front end and a rear end opposite to each other in its axial direction and a central through hole 401 extending between its front end and rear end. The welding end 41 is connected to the rear end of the tubular portion 40 for welding to the conductor core 51 of the cable 5. The contact end 42 is connected to the front end of the tubular portion 40 for mating and making electrical contact with a mating center terminal (not shown). A window 402 and a blocking portion 43 connected to the side of the window 402 are formed on the peripheral wall 10 of the tubular portion 40. The blocking portion 43 is bent into the central through hole 401 via the window 402 and at least partially blocks the central through hole 401, so that when welding the aforementioned welding end 41, the solder cannot flow to the contact end 42 through the central through hole 401.

[0088] As Figures 10 to 18 shown, in the illustrated embodiment, the connector further includes a cable 5, and the cable 5 has a conductor core 51. The welding end 41 of the center terminal 4 is welded to the conductor core 51 of the cable 5. The outer terminal 2 is sleeved on the insulating core 3 and is electrically connected to the shielding layer 52 of the cable 5 for mating and making electrical contact with a mating outer terminal (not shown).

[0089] As Figures 10 to 18 shown, in the illustrated embodiment, the outer terminal 2 includes a cylindrical main body 20, and the cylindrical main body 20 has a front end and a rear end opposite to each other in its axial direction. The front end portion of the cylindrical main body 20 is used for mating and making electrical contact with a mating outer terminal, and the rear end portion of the cylindrical main body 20 is sleeved on the cable 5 and is welded to the shielding layer 52 of the cable 5.

[0090] As Figures 10 to 18 shown, in the illustrated embodiment, the first positioning flange 21 is formed on the outer peripheral surface of the cylindrical main body 20 and is located at an intermediate position between the front end portion and the rear end portion of the cylindrical main body 20. A second positioning flange 22 is formed at the rear end of the cylindrical main body 20, and the outer peripheral surfaces of the first positioning flange 21 and the second positioning flange 22 abut against the inner peripheral surface of the inner cavity 101 of the connector housing 1 to radially position the outer terminal 2.

[0091] As Figures 10 to 18 shown, in the illustrated embodiment, the outer peripheral surfaces of the first positioning flange 21 and the second positioning flange 22 have the same central axis and the same diameter, such that the electrical connection module 100 positioned within the connector housing 1 will not tilt or wobble.

[0092] As Figures 10 to 18 shown, in the illustrated embodiment, the first positioning flange 21 extends continuously in the circumferential direction of the cylindrical body 20, such that the first positioning flange 21 is annular. A plurality of slots 22a are formed in the second positioning flange 22, and the plurality of slots 22a are spaced apart in the circumferential direction of the cylindrical body 20.

[0093] As Figures 10 to 18 shown, in the illustrated embodiment, the outer terminal 2 is a one-piece stamping. The center terminal 4 is a one-piece stamping. In the illustrated embodiment, the window 402 on the center terminal 4 is a punching cutout produced when stamping the blocking portion 43, and is not a deliberately formed window 402. That is, the material corresponding to the window 402 is stamped into the blocking portion 43.

[0094] In the illustrated embodiment, Figures 10 to 18 the electrical connection module 100 of the connector of the second embodiment shown is the same as Figures 1 to 9 the electrical connection module 100 of the connector of the first embodiment shown.

[0095] Those skilled in the art can understand that the above-described embodiments are all exemplary, and those skilled in the art can make improvements thereto. The structures described in various embodiments can be freely combined without conflict in terms of structure or principle, and these changes should reasonably fall within the protection scope of the present invention.

[0096] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the present invention and should not be construed as a limitation of the present invention.

[0097] Although some embodiments of the general concept of the present invention have been shown and described, those of ordinary skill in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the general concept of the present invention. The scope of the present invention is defined by the claims and their equivalents.

[0098] It should be noted that the wording "comprising" does not exclude other elements or steps, and the wording "a" or "an" does not exclude a plurality. Additionally, any element numbers in the claims should not be construed as limiting the scope of the present invention.

Claims

1. A connector housing, characterized in that, Comprising: A peripheral wall (10) that encloses an inner cavity (101) for inserting an outer terminal (2) of a connector and forms a secondary locking groove (10b) communicating with the inner cavity (101) thereon; A primary lock (11) formed inside the peripheral wall (10) and adapted to axially abut against a first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101) to lock the outer terminal (2) in the inner cavity (101); And A secondary lock (12) formed outside the peripheral wall (10) and adapted to move between a locking position engaging with the secondary locking groove (10b) and an unlocking position separated from the secondary locking groove (10b), When the secondary lock (12) is in the locking position, the secondary lock (12) is adapted to axially abut against a first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101) to lock the outer terminal (2) in the inner cavity (101).

2. The connector housing according to claim 1, characterized in that: The connector housing (1) has a front port and a rear port axially opposite to each other, the outer terminal (2) is inserted into the inner cavity (101) from the rear port, and the primary lock (11) and the secondary lock (12) are adapted to axially abut against a rear side surface (21b) of a first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101) to prevent the outer terminal (2) from being pulled out from the rear port.

3. The connector housing according to claim 2, characterized in that: A positioning step (13) is formed inside the peripheral wall (10), the positioning step (13) has a positioning surface (13c) perpendicular to the axis of the connector housing (1), and the positioning surface (13c) is adapted to axially abut against a front side surface (21a) of a first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101) to axially position the outer terminal (2).

4. The connector housing according to claim 3, characterized in that: The connector housing (1) includes one primary lock (11) and one secondary lock (12), and the one primary lock (11) and the one secondary lock (12) are opposite to each other in the radial direction of the inner cavity (101).

5. The connector housing according to claim 4, characterized in that: The primary lock (11) includes: A resilient arm portion (11a) whose root is connected to the peripheral wall (10) and extends forward along the axis from its root by a predetermined length; and A raised portion (11b) formed at the end of the resilient arm portion (11a) and protruding into the inner cavity (101), The raised portion (11b) is adapted to axially abut against a rear side surface (21b) of a first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101) to lock the outer terminal (2) in the inner cavity (101).

6. The connector housing according to claim 5, characterized in that: The protruding portion (11b) has a front end face (11c) perpendicular to the axial direction of the connector housing (1). The front end face (11c) of the protruding portion (11b) is axially opposite to the positioning face (13c) of the positioning step (13) and is adapted to axially abut against the rear side face (21b) of the first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101).

7. The connector housing according to claim 5, characterized in that: An opening corresponding to the primary lock (11) is formed in the peripheral wall (10), so that the primary lock (11) can be driven from the locked position engaged with the first positioning flange (21) of the outer terminal (2) to the unlocked position separated from the first positioning flange (21) of the outer terminal (2) by inserting an unlocking tool into the opening.

8. The connector housing according to claim 4, characterized in that: The secondary lock (12) includes: A cantilever portion (12a) whose root is connected to the peripheral wall (10) and extends forward from its root by a predetermined length; and A hook portion (12b) connected to the end of the cantilever portion (12a) and adapted to be snapped into the secondary lock card slot (10b). When the secondary lock (12) is in the locked position, the hook portion (12b) is snapped into the secondary lock card slot (10b) and is adapted to axially abut against the rear side face (21b) of the first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101) to lock the outer terminal (2) in the inner cavity (101).

9. The connector housing according to claim 8, characterized in that: The hook portion (12b) has a limiting face (12c); When the hook portion (12b) is snapped into the secondary lock card slot (10b), the limiting face (12c) is perpendicular to the axial direction of the connector housing (1) and is axially opposite to the positioning face (13c) of the positioning step (13), and is used to axially abut against the rear side face (21b) of the first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101).

10. The connector housing according to claim 3, characterized in that: The connector housing (1) includes a pair of the primary locks (11) and a pair of the secondary locks (12), and the connector housing (1) has a pair of the secondary lock card slots (10b) respectively corresponding to the pair of the secondary locks (12); The pair of the primary locks (11) are opposite to each other in the first radial direction of the inner cavity (101), the pair of the secondary locks (12) are opposite to each other in the second radial direction of the inner cavity (101), and the first radial direction is perpendicular to the second radial direction.

11. The connector housing according to claim 10, characterized in that: The primary lock (11) includes: A locking protrusion (11'), which is convexly formed on the inner peripheral surface of the inner cavity (101). The locking projection (11') is adapted to axially abut against the rear side surface (21b) of the first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101) to lock the outer terminal (2) in the inner cavity (101).

12. The connector housing according to claim 11, characterized in that: The locking projection (11') has a smoothly transitioning arcuate front side surface (11a') and an arcuate rear side surface (11b'), such that the first positioning flange (21) of the outer terminal (2) can cross over the locking projection (11') under the action of a predetermined axial force, so that the unlocking operation of the primary lock (11) does not require any unlocking tool.

13. The connector housing according to claim 10, characterized in that: The secondary lock (12) includes: A cantilever portion (12a) whose root is connected to the peripheral wall (10) and extends forward from its root by a predetermined length; and A hook portion (12b) connected to the end of the cantilever portion (12a) and adapted to be snapped into the secondary lock slot (10b), When the secondary lock (12) is in the locked position, the hook portion (12b) is snapped into the secondary lock slot (10b) and is adapted to axially abut against the rear side surface (21b) of the first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101) to lock the outer terminal (2) in the inner cavity (101).

14. The connector housing according to claim 13, characterized in that: The hook portion (12b) has a limiting surface (12c); When the hook portion (12b) is snapped into the secondary lock slot (10b), the limiting surface (12c) is perpendicular to the axis of the connector housing (1) and is axially opposite to the positioning surface (13c) of the positioning step (13), for axially abutting against the rear side surface (21b) of the first positioning flange (21) of the outer terminal (2) inserted into the inner cavity (101).

15. The connector housing according to any one of claims 1-14, characterized in that: The connector housing (1) is an integrally injection-molded part.

16. A connector, characterized in that, Comprising: The connector housing (1) according to any one of claims 1-15; And An electrical connection module (100) inserted into the inner cavity (101) of the connector housing (1), The electrical connection module (100) includes: An outer terminal (2) formed with a radially protruding first positioning flange (21); An insulating core (3) inserted into the outer terminal (2); and A center terminal (4) inserted into the insulating core (3), The primary lock (11) and the secondary lock (12) of the connector housing (1) axially abut against the first positioning flange (21) of the outer terminal (2) to lock the electrical connection module (100) in the inner cavity (101) of the connector housing (1).

17. The connector according to claim 16, characterized in that: The center terminal (4) includes: A tubular portion (40) having a front end and a rear end opposite to each other in its axial direction and a central through hole (401) extending between its front end and rear end; A welding end (41), connected to the rear end of the tubular portion (40), for welding to the conductor core (51) of the cable (5); and A contact end (42), connected to the front end of the tubular portion (40), for mating and making electrical contact with a mating center terminal, A window (402) is formed on the peripheral wall (10) of the tubular portion (40), and a blocking portion (43) is connected to the side of the window (402). The blocking portion (43) is bent into the central through hole (401) through the window (402) and at least partially blocks the central through hole (401), so that when welding the welding end (41), solder cannot flow to the contact end (42) through the central through hole (401).

18. The connector according to claim 17, wherein Further comprising: A cable (5), having a conductor core (51), The welding end (41) of the center terminal (4) is welded to the conductor core (51) of the cable (5), The outer terminal (2) is sleeved on the insulating core body (3) and is electrically connected to the shielding layer (52) of the cable (5), for mating and making electrical contact with a mating outer terminal.

19. The connector according to claim 18, wherein: The outer terminal (2) includes: A cylindrical main body (20), having a front end and a rear end opposite to each other in its axial direction, The front end portion of the cylindrical main body (20) is for mating and making electrical contact with the mating outer terminal, and the rear end portion of the cylindrical main body (20) is sleeved on the cable (5) and is welded to the shielding layer (52) of the cable (5).

20. The connector according to claim 19, wherein: The first positioning flange (21) is formed on the outer peripheral surface of the cylindrical main body (20) and is located at an intermediate position between the front end portion and the rear end portion of the cylindrical main body (20); A second positioning flange (22) is formed at the rear end of the cylindrical main body (20). The outer peripheral surfaces of the first positioning flange (21) and the second positioning flange (22) abut against the inner peripheral surface of the inner cavity (101) of the connector housing (1) to radially position the outer terminal (2).

21. The connector according to claim 20, wherein: The outer peripheral surfaces of the first positioning flange (21) and the second positioning flange (22) have the same central axis and the same diameter, so that the electrical connection module (100) positioned in the connector housing (1) will not be tilted or shaken.

22. The connector according to claim 21, wherein: The first positioning flange (21) continuously extends in the circumferential direction of the cylindrical main body (20), so that the first positioning flange (21) is in a circular ring shape; A plurality of slots (22a) are formed on the second positioning flange (22), and the plurality of slots (22a) are spaced apart in the circumferential direction of the cylindrical main body (20).

23. The electrical connection module (100) according to claim 16, wherein: The outer terminal (2) is an integrally stamped part; and / or The center terminal (4) is an integrally stamped part.

Images