Connector core assembly, connector and connector assembly

Abstract

A connector core assembly, comprises a core body 1 which is formed with a power terminal hole (figure 3, 102), a signal terminal hole (figure 3, 103), a grounding terminal hole 104, and a data module hole (figure 3, 105). Corresponding terminals are provided in the terminal holes, with a data module (figure 1, 5) in the data module hole. The data module comprises: a shielding shell (figure 15, 51); an insulator (figure 15, 50) which is installed in the shielding shell (figure 15, 51); and multiple data terminals (figure 15, 52) which are provided in the insulator. The shielding shell isolates the multiple data terminals from the power terminal, the signal terminal, and the ground terminal. The connector core assembly combines both data transfer with power transfer in a single connector assembly. The multiple data terminals may be used for transmitting Ethernet data.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims the benefit of Chinese Patent Application No. CN202311598270.2 filed on November 27, 2023 in the State Intellectual Property Office of China, the whole disclosure of which is incorporated herein by reference. BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a connector core assembly, a connector comprising the connector core assembly and a connector assembly comprising the connector. Description of the Related Art With the rapid development of industrial equipment such as industrial robots and industrial servo motors, miniaturization and integration have become inevitable trends in technological development. As an essential part of electrical equipment input and output, the miniaturization and integration of electrical connectors are inevitable trends in providing power, signal, and data transmission simultaneously in a small space. In the prior art, electrical connectors usually only integrate power terminals and signal terminals, without terminals for transmitting data (such as terminals for transmitting Cat5 data). Therefore, in the prior art, it is necessary to provide a separate data connector, which can lead to increased costs, increased volume, inconvenience in use. SUMMARY OF THE INVENTION The present invention has been made to overcome or alleviate at least one aspect of the above mentioned disadvantages. According to an aspect of the present invention, there is provided a connector core assembly. The connector core assembly comprises of: a core body which is formed with a power terminal hole, a signal terminal hole, a grounding terminal hole, and a data module hole; a power terminal which is provided in the power terminal hole; a signal terminal which is provided in the signal terminal hole; a grounding terminal which is provided in the grounding terminal hole; and a data module which is provided in the data module hole. The data module comprises of: a shielding shell; an insulator which is installed in the shielding shell; and multiple data terminals which are provided in the insulator. The shielding shell isolates the multiple data terminals from the power terminal, the signal terminal, and the ground terminal. According to an exemplary embodiment of the present invention, the multiple data terminals are used for transmitting Ethernet data. According to another exemplary embodiment of the present invention, the insulator comprises a cylindrical main body, and multiple outward opening receiving slots are formed on the outer peripheral surface of the main body, the multiple receiving slots extend along the axial direction of the main body and are distributed at intervals in the circumferential direction of the main body, the multiple data terminals are respectively provided in the multiple receiving slots. According to another exemplary embodiment of the present invention, a C-shaped snap ring portion is formed in the receiving slot, and a snap slot is formed on the data terminal, the C-shaped snap ring portion is snapped into the snap slot on the data terminal to hold the data terminal in the receiving slot. According to another exemplary embodiment of the present invention, the data module further comprises an insulation sleeve which is fitted onto the main body of the insulator, the peripheral wall of the insulation sleeve is used to rest against the data terminal to constrain the data terminal in the receiving slot of the insulator. According to another exemplary embodiment of the present invention, an engagement protrusion is formed on the outer surface of the rear end of the main body of the insulator, and an engagement recess is formed on the rear end of the peripheral wall of the insulation sleeve, the engagement protrusion is engaged with the engagement recess to lock the insulation sleeve onto the insulator. According to another exemplary embodiment of the present invention, the front end wall of the insulation sleeve is pressed against the front end surface of the main body of the insulator, and a through-hole is formed in the front end wall of the insulation sleeve to allow the data terminal to pass through, the front end of the data terminal extends out of the through-hole in the front end wall of the insulation sleeve for mating with a mating data terminal. According to another exemplary embodiment of the present invention, a guide rib extending along its axial direction is formed on the main body of the insulator, which separates adjacent two receiving slots; a guide slot extending along the axial direction is formed on the inner side of the peripheral wall of the insulation sleeve, and the guide rib cooperates with the guide slot to guide the main body to be inserted into the insulation sleeve. According to another exemplary embodiment of the present invention, the insulator further comprises a connecting leg extending backwards from the rear end of the main body and a limiting protrusion formed on the end of the connecting leg, the limiting protrusion is located outside the shielding shell and one side of the limiting protrusion is pressed against a limiting step inside the data module hole to axially position the data module. According to another exemplary embodiment of the present invention, the connector core assembly further comprises an end cover which is installed on the rear end of the core body and formed with multiple through holes corresponding to the power terminal hole, the signal terminal hole, the grounding terminal hole, and the data module hole, respectively, the end cover comprises a cover plate for resting against the rear end face of the core body and a data module stop arm connected to the cover plate, wherein the data module stop arm extends into the data module hole and rests against the other side of the limit protrusion of the data module to prevent the data module from being pulled out of the data module hole. According to another exemplary embodiment of the present invention, an avoidance slot extending along the axial direction is formed on the peripheral wall of the rear end of the shielding shell, and the root of the limiting protrusion connected to the connecting leg cooperates with the avoidance slot to guide the insulator to be inserted into the shielding shell. According to another exemplary embodiment of the present invention, multiple divide slits extending along the axial direction are formed in the peripheral wall of the front end of the shielding shell, and the multiple divide slits are distributed at intervals in the circumferential direction of the shielding shell, so that the peripheral wall of the front end of the shielding shell can elastically deform in the radial direction to make electrical contact with an inserted mating shielding shell. According to another exemplary embodiment of the present invention, the data module further comprises: a support sleeve; and a crimping ring which is fitted onto the rear end of the support sleeve. The crimping ring is used to connect the shielding layer of the data cable to the rear end of the support sleeve, and the front end of the support sleeve is inserted into the rear end of the shielding shell. According to another exemplary embodiment of the present invention, the data module further comprises a locking sleeve which is fitted onto the support sleeve and the crimping ring, a first step is formed on the inner peripheral surface of the locking sleeve, and a second step is formed on the outer peripheral surface of the support sleeve, the first step and the second step respectively abut against the axial ends of the crimping ring to axially position the crimping ring. According to another exemplary embodiment of the present invention, a first protrusion is formed on the outer peripheral surface of the rear end of the shielding shell, a second protrusion is formed on the inner peripheral surface of the front end of the locking sleeve, the rear end of the shielding shell is inserted into the front end of the locking sleeve, and the first protrusion is engaged with the second protrusion to connect the shielding shell to the locking sleeve. According to another exemplary embodiment of the present invention, the grounding terminal comprises: a mating part located at one end of the grounding terminal, used for mating with a mating grounding terminal; a connecting part located at the other end of the grounding terminal, used for electrical connection to a grounding wire; and a block part located between the mating part and the connecting part and adapted to be fixed in the grounding terminal hole. The cross-section of the block part is horseshoe shaped, and the grounding terminal hole cooperates with the block part to position the block part. According to another exemplary embodiment of the present invention, a first snap slot is formed on the block part, and a second snap slot is formed on the inner wall surface of the grounding terminal hole, the first snap slot and the second snap slot form a C-shaped snap slot; the connector core assembly further comprises a C-shaped holder, which is inserted into the C-shaped snap slot composed of the first snap slot and the second snap slot to axially position the grounding terminal. According to another exemplary embodiment of the present invention, a radial flange is formed on the power terminal, and one side of the radial flange is pressed against a step inside the power terminal hole to axially position the power terminal; the end cover further comprises a power terminal stop arm connected to the cover plate, wherein the power terminal stop arm extends into the power terminal hole and rests against the other side of the radial flange to prevent the power terminal from being pulled out of the power terminal hole. According to another exemplary embodiment of the present invention, the power terminal stop arm comprises: a straight arm portion, one end of which is connected to the cover plate and which extends along the axial direction of the core body from the cover plate; and an inclined arm portion connected to the other end of the straight arm portion and extending obliquely with respect to the axial direction. The end of the inclined arm portion is pressed against the radial flange of the power terminal. According to another exemplary embodiment of the present invention, an elastic locking component is installed on the signal terminal, the elastic locking component is pressed against a step inside the signal terminal hole to prevent the signal terminal from being pulled out of the signal terminal hole. According to another exemplary embodiment of the present invention, the end cover further comprises a buckle connected to the side edge of the cover plate, and a slot hole is formed in the buckle, a protrusion is formed on the outer side of the rear end of the core body, and the protrusion is engaged into the slot hole of the buckle to fix the end cover to the rear end of the core body. According to another exemplary embodiment of the present invention, the end cover further comprises multiple engagement posts protruding from the inner side of the cover plate, and multiple engagement holes are formed in the rear end surface of the core body, the multiple engagement posts are respectively inserted into the multiple engagement holes in an interference fit manner to increase the engagement force between the end cover and the core body. According to another exemplary embodiment of the present invention, the connector core assembly comprises four power terminals, four signal terminals, one ground terminal, and one data module; the four power terminals, four signal terminals, and one ground terminal are arranged around the data module, and the data module includes six data terminals. According to another aspect of the present invention, there is provided a connector. The connector comprises: a connector housing; and the above connector core assembly inserted into the connector housing. According to an exemplary embodiment of the present invention, a sealing ring installation groove is formed on the outer surface of the core body, and the connector further comprises a first sealing ring installed in the sealing ring installation groove, the first sealing ring is radially compressed between the connector housing and the core body to achieve sealing between the two. According to another exemplary embodiment of the present invention, a threaded hole is formed in the grounding terminal, and a connection hole is formed in the connector housing; the connector further comprises a threaded connection piece that passes through the connection hole and is threaded into the threaded hole to fix the connector core assembly in the connector housing. According to another exemplary embodiment of the present invention, the connector further comprises a second sealing ring which is fitted onto the threaded connection piece, the second sealing ring is compressed between the head of the threaded connection piece and the connector housing, and surrounds the opening of the connection hole for sealing the connection hole. According to another aspect of the present invention, there is provided a connector assembly. The connector assembly comprises: the above connector; and a mating connector which is mated with the connector. According to an exemplary embodiment of the present invention, the connector is a male connector, and the mating connector is a female connector; or the connector is a female connector, and the mating connector is a male connector. In the aforementioned exemplary embodiments according to the present invention, the connector not only integrates power terminals, signal terminals, and ground terminals, but also integrates a data module for transmitting data. Therefore, the connector of the present invention can simultaneously achieve the transmission of power, signals, and data, and has good grounding and electromagnetic shielding functions. Therefore, the present invention does not require a separate data connector, reducing costs, decreasing volume, and improving usability. BRIEF DESCRIPTION OF THE DRAWINGS The above and other features of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which: Figure 1 shows an illustrative perspective view of a connector core assembly according to an exemplary embodiment of the present invention when viewed from the front; Figure 2 shows an illustrative perspective view of a connector core assembly according to an exemplary embodiment of the present invention when viewed from one side; Figure 3 shows an illustrative exploded view of a connector core assembly according to an exemplary embodiment of the present invention when viewed from the rear; Figure 4 shows an illustrative exploded view of a connector core assembly according to an exemplary embodiment of the present invention when viewed from the front; Figure 5 shows an illustrative perspective view of a connector core assembly according to an exemplary embodiment of the present invention when viewed from one side, wherein a C-shaped holder and a threaded connection piece for fixing the grounding terminal are shown; Figure 6 shows an illustrative perspective view of the core body of a connector core assembly according to an exemplary embodiment of the present invention when viewed from one side; Figure 7 shows an illustrative perspective view of the core body of a connector core assembly according to an exemplary embodiment of the present invention when viewed from the rear; Figure 8 shows an illustrative perspective view of a connector core assembly according to an exemplary embodiment of the present invention, with the core body removed; Figure 9 shows an illustrative assembly view of the end cover and data module of a connector core assembly according to an exemplary embodiment of the present invention; Figure 10 shows an illustrative exploded view of the end cover and data module of a connector core assembly according to an exemplary embodiment of the present invention; Figure 11 shows an illustrative perspective view of a signal terminal of a connector core assembly according to an exemplary embodiment of the present invention; Figure 12 shows an illustrative perspective view of the grounding terminal of a connector core assembly according to an exemplary embodiment of the present invention; Figure 13 shows an illustrative perspective view of a data module of a connector core assembly according to an exemplary embodiment of the present invention; Figure 14 shows an axial sectional view of a data module of a connector core assembly according to an exemplary embodiment of the present invention; Figure 15 shows an illustrative exploded view of the data module of a connector core assembly according to an exemplary embodiment of the present invention; Figure 16 shows an illustrative perspective view of the insulator, insulation sleeve, and data terminal of the data module of the connector core assembly according to an exemplary embodiment of the present invention when viewed from the front; and Figure 17 shows an illustrative perspective view of the insulator, insulation sleeve, and data terminal of the data module of the connector core assembly according to an exemplary embodiment of the present invention when viewed from the rear. DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE IVENTION Exemplary embodiments of the present disclosure will be described hereinafter in detail with reference to the attached drawings, wherein the like reference numerals refer to the like elements. The present disclosure may, however, be embodied in many different forms and should not be construed as being limited to the embodiment set forth herein; rather, these embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the concept of the disclosure to those skilled in the art. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing. According to a general concept of the present invention, there is provided a connector core assembly. The connector core assembly comprises of: a core body which is formed with a power terminal hole, a signal terminal hole, a grounding terminal hole, and a data module hole; a power terminal which is provided in the power terminal hole; a signal terminal which is provided in the signal terminal hole; a grounding terminal which is provided in the grounding terminal hole; and a data module which is provided in the data module hole. The data module comprises of: a shielding shell; an insulator which is installed in the shielding shell; and multiple data terminals which are provided in the insulator. The shielding shell isolates the multiple data terminals from the power terminal, the signal terminal, and the ground terminal. According to another general concept of the present invention, there is provided a connector. The connector comprises: a connector housing; and the above connector core assembly inserted into the connector housing. According to another general concept of the present invention, there is provided a connector assembly. The connector assembly comprises: the above connector; and a mating connector which is mated with the connector. Figure 1 shows an illustrative perspective view of a connector core assembly according to an exemplary embodiment of the present invention when viewed from the front; Figure 2 shows an illustrative perspective view of a connector core assembly according to an exemplary embodiment of the present invention when viewed from one side; Figure 3 shows an illustrative exploded view of a connector core assembly according to an exemplary embodiment of the present invention when viewed from the rear; Figure 4 shows an illustrative exploded view of a connector core assembly according to an exemplary embodiment of the present invention when viewed from the front; Figure 13 shows an illustrative perspective view of data module 5 of a connector core assembly according to an exemplary embodiment of the present invention; Figure 14 shows an axial sectional view of data module 5 of a connector core assembly according to an exemplary embodiment of the present invention; Figure 15 shows an illustrative exploded view of data module 5 of a connector core assembly according to an exemplary embodiment of the present invention; Figure 16 shows an illustrative perspective view of the insulator 50, insulation sleeve 53, and data terminal 52 of the data module 5 of the connector core assembly according to an exemplary embodiment of the present invention when viewed from the front; Figure 17 shows an illustrative perspective view of the insulator 50, insulation sleeve 53, and data terminal 52 of the data module 5 of the connector core assembly according to an exemplary embodiment of the present invention when viewed from the rear. As shown in Figures 1-4 and 13-17, in an exemplary embodiment of the present invention, a connector core assembly is disclosed. The connector core assembly mainly includes: a core body 1, a power terminal 2, a signal terminal 3, a grounding terminal 4, and a data module 5. A power terminal hole 102, a signal terminal hole 103, a ground terminal hole 104, and a data module hole 105 are formed in the core body 1. The power terminal 2 is provided in the power terminal hole 102. The signal terminal 3 is provided in signal terminal hole 103. The grounding terminal 4 is provided in the grounding terminal hole 104. The data module 5 is provided in the data module hole 105. As shown in Figures 1-4 and 13-17, in the illustrated embodiment, the data module 5 mainly includes a shielding shell 51, an insulator 50, and multiple data terminals 52. The insulator 50 is provided in the shielding shell 51. Multiple data terminals 52 are arranged in the insulator 50. The shielding shell 51 isolates multiple data terminals 52 from the power terminal 2, signal terminal 3, and ground terminal 4. As shown in Figures 1-4 and 13-17, in the illustrated embodiment, multiple data terminals 52 are used to transmit Ethernet data, such as Cat5 data. As shown in Figures 1-4 and 13-17, in the illustrated embodiment, the insulator 50 includes a cylindrical main body 500, and a plurality of outward opening receiving slots 501 are formed on the outer peripheral surface of the main body 500. The multiple receiving slots 501 extend along the axial direction of the main body 500 and are distributed at intervals in the circumferential direction of the main body 500. Multiple data terminals 52 are respectively arranged in the multiple receiving slots 501. As shown in Figure 1-4 and Figure 13-17, in the illustrated embodiment, a C-shaped snap ring portion 50c is formed in the receiving slot 501, and a snap slot 52a is formed on the data terminal 52. The C-shaped snap ring portion 50c is snapped into the snap slot 52a on the data terminal 52 to hold the data terminal 52 in the receiving slot 501. As shown in Figures 1-4 and 13-17, in the illustrated embodiment, the data module 5 further includes an insulation sleeve 53, which is fitted onto the main body 500 of the insulator 50. The peripheral wall 530 of the insulation sleeve 53 is used to rest against the data terminal 52, to constrain the data terminal 52 in the receiving slot 501 of the insulator 50. As shown in Figures 1-4 and 13-17, in the illustrated embodiment, an engagement protrusion 50b is formed on the outer surface of the rear end of the main body 500 of the insulator 50, and an engagement recess 53b is formed on the rear end of the peripheral wall 530 of the insulation sleeve 53. The engagement protrusion 50b is engaged with the engagement recess 53b to lock the insulation sleeve 53 to the insulator 50. As shown in Figures 1-4 and 13-17, in the illustrated embodiment, the front end wall 531 of the insulation sleeve 53 is pressed against the front end surface of the main body 500 of the insulator 50, and a through-hole is formed in the front end wall 531 of the insulation sleeve 53 to allow the data terminal 52 to pass through. The front end of the data terminal 52 extends out of the through-hole of the front end wall 531 of the insulation sleeve 53 for mating with a mating data terminal. As shown in Figures 1-4 and 13-17, in the illustrated embodiment, a guide rib 50c extending along the axial direction of the main body 500 of the insulator 50 is formed on the main body 500 of the insulator 50, and the guide rib 50c separates adjacent two receiving slots 501. A guide slot 53c extending along the axial direction is formed on the inner side of the peripheral wall 530 of the insulation sleeve 53, and the guide rib 50c cooperates with the guide slot 53c to guide the insertion of the main body 500 into the insulation sleeve 53. Figure 5 shows an illustrative perspective view of a connector core assembly according to an exemplary embodiment of the present invention when viewed from one side, wherein a C-shaped holder 43 and a threaded connection piece 44 are shown for fixing the ground terminal 4; Figure 6 shows an illustrative perspective view of the core body of a connector core assembly according to an exemplary embodiment of the present invention when viewed from one side; Figure 7 shows an illustrative perspective view of the core body of a connector core assembly according to an exemplary embodiment of the present invention when viewed from the rear; Figure 8 shows an illustrative perspective view of a connector core assembly according to an exemplary embodiment of the present invention, with core body 1 removed; Figure 9 shows an illustrative assembly view of the end cover 7 and data module 5 of a connector core assembly according to an exemplary embodiment of the present invention; Figure 10 shows an illustrative exploded view of the end cover 7 and data module 5 of a connector core assembly according to an exemplary embodiment of the present invention. As shown in Figures 1-10 and 13-17, in the illustrated embodiment, the insulator 50 further includes a connecting leg 502 extending backwards from the rear end of the main body 500 and a limiting protrusion 505 formed on the end of the connecting leg 502. The limiting protrusion 505 is located outside the shielding shell 51 and one side of the limiting protrusion 505 is pressed against a limiting step 105a inside the data module hole 105 to axially position the data module 5. As shown in Figures 1-10 and 13-17, in the illustrated embodiment, the connector core assembly further includes an end cover 7, which is installed on the rear end of the core body 1 and formed with multiple through holes corresponding to the power terminal hole 102, signal terminal hole 103, ground terminal hole 104, and data module hole 105, respectively. The end cover 7 includes a cover plate 70 for resting against the rear end surface of the core body 1 and a data module stop arm 75 connected to the cover plate 70. The data module stop arm 75 extends into the data module hole 105 and rests against the other side of the limiting protrusion 505 of the data module 5 to prevent the data module 5 from being pulled out of the data module hole 105. As shown in Figure 1-10 and Figure 13-17, in the illustrated embodiment, an axially extending avoidance slot 51a is formed on the peripheral wall of the rear end of the shielding shell 51. The root of the limiting protrusion 505 connected to the connecting leg 502 cooperates with the avoidance slot 51 a to guide the insulator 50 to be inserted into the shielding shell 51. As shown in Figures 1-10 and 13-17, in the illustrated embodiment, multiple axially extending divide slits 51c are formed in the peripheral wall of the front end of the shielding shell 51, and the multiple divide slits 51c are distributed at intervals in the circumferential direction of the shielding shell 51, so that the peripheral wall of the front end of the shielding shell 51 can be elastically deformed in the radial direction to make electrical contact with an inserted mating shielding shell (not shown). As shown in Figures 1-10 and 13-17, in the illustrated embodiment, the data module 5 further includes a support sleeve 55 and a crimping ring 56. The crimping ring 56 is fitted onto the rear end of the support sleeve 55. The crimping ring 56 is used to connect the shielding layer of the data cable to the rear end of the support sleeve 55, and the front end of the support sleeve 55 is inserted into the rear end of the shielding shell 51. As shown in Figures 1-10 and 13-17, in the illustrated embodiment, the data module 5 further includes a locking sleeve 54, which is fitted onto the support sleeve 55 and the crimping ring 56. On the inner peripheral surface of the locking sleeve 54, a first step 54a is formed, and on the outer peripheral surface of the supporting sleeve 55, a second step 55a is formed. The first step 54a and the second step 55a respectively abut against the axial ends of the crimping ring 56 to axially position the crimping ring 56. As shown in Figures 1-10 and 13-17, in the illustrated embodiment, a first protrusion 11b is formed on the outer peripheral surface of the rear end of the shielding shell 51, and a second protrusion 54b is formed on the inner peripheral surface of the front end of the locking sleeve 54. The rear end of the shielding shell 51 is inserted into the front end of the locking sleeve 54, and the first protrusion 54b is engaged with the second protrusion 54b to connect the shielding shell 51 to the locking sleeve 54. Figure 12 shows an illustrative perspective view of the grounding terminal 4 of a connector core assembly according to an exemplary embodiment of the present invention. As shown in Figures 1-10 and 12-17, in the illustrated embodiment, the grounding terminal 4 includes a mating part 41, a connecting part 42, and a block part 40. The mating part 41 is located at one end of the grounding terminal 4 and is used to mate with a mating grounding terminal (not shown). The connecting part 42 is located at the other end of the grounding terminal 4 and is used for electrical connection to a grounding wire (not shown). The connecting part 42 can be crimped to the grounding wire, for example. The block part 40 is located between the mating part 41 and the connecting part 42, and is used to be fixed in the grounding terminal hole 104. In the illustrated embodiment, the cross-section of the block part 40 is horseshoe shaped, and the grounding terminal hole 104 is mated with the block part 40 to position it. As shown in Figures 1-10 and 12-17, in the illustrated embodiment, a first snap slot 4a is formed on the block part 40, and a second snap slot 104a is formed on the inner wall surface of the grounding terminal hole 104. The first snap slot 4a and the second snap slot 104a form a C-shaped snap slot. The connector core assembly also includes a C-shaped holder 43, which is inserted into the C-shaped snap slot composed of the first snap slot 4a and the second snap slot 104a to axially position the grounding terminal 4. As shown in Figures 1-10 and 12-17, in the illustrated embodiment, a radial flange 2b is formed on the power terminal 2, and one side of the radial flange 2b is pressed against a step inside the power terminal hole 102 to axially position the power terminal 2. The end cover 7 also includes a power terminal stop arm 72 connected to the cover plate 70. The power terminal stop arm 72 extends into the power terminal hole 102 and rests against the other side of the radial flange 2b to prevent the power terminal 2 from being pulled out of the power terminal hole 102. As shown in Figures 1-10 and 12-17, in the illustrated embodiment, the power terminal stop arm 72 includes a straight arm portion 72a and an inclined arm portion 72b. One end of the straight arm portion 72a is connected to the cover plate 70 and extends along the axial direction of the core body 1 from the cover plate 70. The inclined arm portion 72b is connected to the other end of the straight arm portion 72a and extends obliquely with respect to the axial direction. The end of the inclined arm portion 72b is pressed against the radial flange 2b of the power terminal 2. Figure 11 shows an illustrative perspective view of a signal terminal 3 of a connector core assembly according to an exemplary embodiment of the present invention. As shown in Figures 1 to 17, in the illustrated embodiment, an elastic locking component 3a is installed on the signal terminal 3, and the elastic locking component 3a is pressed against a step inside the signal terminal hole 103 to prevent the signal terminal 3 from being pulled out of the signal terminal hole 103. As shown in Figures 1 to 17, in the illustrated embodiment, the end cover 7 further includes a buckle 71 connected to the side edge of the cover plate 70, and a slot hole 71 is formed in the buckle 71. A protrusion 171a is formed on the outer side of the rear end of the core body 1, and the protrusion 171a is engaged with the slot hole 71 of the buckle 71 to fix the end cover 7 to the rear end of the core body 1. As shown in Figures 1 to 17, in the illustrated embodiment, the end cover 7 further includes multiple engagement posts 76 protruding from the inner side of the cover plate 70, and multiple engagement holes 106 are formed in the rear end surface of the core body 1. The multiple engagement posts 76 are respectively inserted into the multiple engagement holes 106 in an interference fit manner to increase the engagement force between the end cover 7 and the core body 1. As shown in Figures 1 to 17, in the illustrated embodiment, the connector core assembly includes four power terminals 2, four signal terminals 3, one ground terminal 4, and one data module 5. Four power terminals 2, four signal terminals 3, and one ground terminal 4 are arranged around the data module 5, and the data module 5 includes six data terminals 52. In the illustrated embodiment, the cross-sectional area of power terminal 2 can reach up to 4 square millimeters, the cross-sectional area of signal terminal 3 can reach up to 2.5 square millimeters, and the cross-sectional area of ground terminal 4 can reach up to 4 square millimeters. As shown in Figures 1 to 17, in another exemplary embodiment of the present invention, a connector is also disclosed. The connector includes a connector housing (not shown) and the aforementioned connector core assembly. The connector core assembly is inserted into the connector housing. As shown in Figures 1 to 17, in the illustrated embodiment, a sealing ring installation groove 116 is formed on the outer surface of the core body 1, and the connector further includes a first sealing ring 6 installed in the sealing ring installation groove 116. The first sealing ring 6 is radially compressed between the connector housing and the core body 1 to achieve sealing between the two. As shown in Figures 1 to 17, in the illustrated embodiment, a threaded hole 4b is formed in the ground terminal 4, and a connection hole is formed in the connector housing. The connector also includes a threaded connection piece 44, which passes through the connection hole and is threaded into the threaded hole 4b to fix the connector core assembly in the connector housing. As shown in Figures 1 to 17, in the illustrated embodiment, the connector further includes a second sealing ring 45. The second sealing ring 45 is fitted onto the threaded connection piece 44. The second sealing ring 45 is compressed between the head of the threaded connection piece 44 and the connector housing, and surrounds the opening of the connection hole for sealing the connection hole. As shown in Figures 1 to 17, in another exemplary embodiment of the present invention, a connector assembly is also disclosed. The connector assembly includes: the aforementioned connector and a mating connector which is mated with the connector. As shown in Figures 1 to 17, in an exemplary embodiment of the present invention, the connector is a male connector and the mating connector is a female connector. However, the present invention is not limited to the illustrated embodiments. For example, the aforementioned connector may be a female connector, and the aforementioned mating connector may be a male connector. In the aforementioned exemplary embodiments of the present invention, the connector core assembly integrates 4 power terminals (with the cross-sectional area up to 4.0 square millimeters), 4 signal terminals (with the cross-sectional area up to 2.5 square millimeters), 6 Cat5 data transmission terminals, and 1 ground terminal (with the cross-sectional area up to 4.0 square millimeters), replacing the functionality that can only be achieved by the client using multiple connectors, greatly reducing costs. The connector core assembly of the present invention is used for the smallest housing of heavy-duty connectors and has a natural advantage of miniaturization. The multiple terminals in the connector core assembly of the present invention are independently installed, and the client can freely combine them, providing multiple solutions and features such as versatility and high convenience. The data module of the present invention adopts a 360 ° shielding design, which can connect 6 data terminals and achieve data transmission of Cat 5. The crimping connection can be used between the grounding terminal and the grounding wire, which has more reliable electrical and mechanical stability and saves space. It should be appreciated for those skilled in this art that the above embodiments are intended to be illustrated, and not restrictive. For example, many modifications may be made to the above embodiments by those skilled in this art, and various features described in different embodiments may be freely combined with each other without conflicting in configuration or principle. Although several exemplary embodiments have been shown and described, it would be appreciated by those skilled in the art that various changes or modifications may be made in these embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined in the claims and their equivalents. As used herein, an element recited in the singular and proceeded with the word "a" or "an" should be understood as not excluding plural of said elements or steps, unless such exclusion is explicitly stated. Furthermore, references to "one embodiment" of the present invention are not intended to be interpreted as excluding the existence of additional embodiments that also incorporate the recited features. Moreover, unless explicitly stated to the contrary, embodiments "comprising" or "having" an element or a plurality of elements having a particular property may include additional such elements not having that property.

Claims

1. A connector core assembly, comprising:a core body (1) which is formed with a power terminal hole (102), a signal terminal hole (103), a grounding terminal hole (104), and a data module hole (105);a power terminal (2) which is provided in the power terminal hole (102);a signal terminal (3) which is provided in the signal terminal hole (103);a grounding terminal (4) which is provided in the grounding terminal hole (104); anda data module (5) which is provided in the data module hole (105),wherein the data module (5) comprises:a shielding shell (51);an insulator (50) which is installed in the shielding shell (51); andmultiple data terminals (52) which are provided in the insulator (50),wherein the shielding shell (51) isolates the multiple data terminals (52) from the power terminal (2), the signal terminal (3), and the ground terminal (4).

2. The connector core assembly according to claim 1,wherein the multiple data terminals (52) are used for transmitting Ethernet data.

3. The connector core assembly according to claim 1 or 2,wherein the insulator (50) comprises a cylindrical main body (500), and multiple outward opening receiving slots (501) are formed on the outer peripheral surface of the main body (500), the multiple receiving slots (501) extend along the axial direction of the main body (500) and are distributed at intervals in the circumferential direction of the main body (500), the multiple data terminals (52) are respectively provided in the multiple receiving slots (501).

4. The connector core assembly according to claim 3,wherein a C-shaped snap ring portion (50c) is formed in the receiving slot (501), and a snap slot (52a) is formed on the data terminal (52), the C-shaped snap ring portion (50c) is snapped into the snap slot (52a) on the data terminal (52) to hold the data terminal (52) in the receiving slot (501).

5. The connector core assembly according to claim 3 or 4,wherein the data module (5) further comprises:an insulation sleeve (53) which is fitted onto the main body (500) of the insulator (50), wherein the peripheral wall (530) of the insulation sleeve (53) is used to rest against the data terminal (52) to constrain the data terminal (52) in the receiving slot (501) of the insulator (50);wherein an engagement protrusion (50b) is formed on the outer surface of the rear end of the main body (500) of the insulator (50), and an engagement recess (53b) is formed on the rear end of the peripheral wall (530) of the insulation sleeve (53), the engagement protrusion (50b) is engaged with the engagement recess (53b) to lock the insulation sleeve (53) onto the insulator (50).

6. The connector core assembly according to claim 5,wherein the front end wall (531) of the insulation sleeve (53) is pressed against the front end surface of the main body (500) of the insulator (50), and a through-hole is formed in the front end wall (531) of the insulation sleeve (53) to allow the data terminal (52) to pass through, the front end of the data terminal (52) extends out of the through-hole in the front end wall (531) of the insulation sleeve (53) for mating with a mating data terminal.

7. The connector core assembly according to claim 5 or 6,wherein a guide rib (50c) extending along its axial direction is formed on the main body (500) of the insulator (50), which separates adjacent two receiving slots (501);wherein a guide slot (53c) extending along the axial direction is formed on the inner side of the peripheral wall (530) of the insulation sleeve (53), and the guide rib (50c) cooperates with the guide slot (53c) to guide the main body (500) to be inserted into the insulation sleeve (53).

8. The connector core assembly according to any one of claims 3 to 7,wherein the insulator (50) further comprises a connecting leg (502) extending backwards from the rear end of the main body (500) and a limiting protrusion (505) formed on the end of the connecting leg (502),wherein the limiting protrusion (505) is located outside the shielding shell (51) and one side of the limiting protrusion (505) is pressed against a limiting step (105a) inside the data module hole (105) to axially position the data module (5).

9. The connector core assembly according to claim 8, further comprising:an end cover (7) which is installed on the rear end of the core body (1) and formed with multiple through holes corresponding to the power terminal hole (102), the signal terminal hole (103), the grounding terminal hole (104), and the data module hole (105), respectively,wherein the end cover (7) comprises a cover plate (70) for resting against the rear end face of the core body (1) and a data module stop arm (75) connected to the cover plate (70), wherein the data module stop arm (75) extends into the data module hole (105) and rests against the other side of the limit protrusion (505) of the data module (5) to prevent the data module (5) from being pulled out of the data module hole (105).

10. The connector core assembly according to claim 8 or 9,wherein an avoidance slot (51a) extending along the axial direction is formed on the peripheral wall of the rear end of the shielding shell (51), and the root of the limiting protrusion (505) connected to the connecting leg (502) cooperates with the avoidance slot (51a) to guide the insulator (50) to be inserted into the shielding shell (51).

11. The connector core assembly according to any preceding claim,wherein the data module (5) further comprises:a support sleeve (55); anda crimping ring (56) which is fitted onto the rear end of the support sleeve (55),wherein the crimping ring (56) is used to connect the shielding layer of the data cable to the rear end of the support sleeve (55), and the front end of the support sleeve (55) is inserted into the rear end of the shielding shell (51).

12. The connector core assembly according to claim 11,wherein the data module (5) further comprises:a locking sleeve (54) which is fitted onto the support sleeve (55) and the crimping ring (56),wherein a first step (54a) is formed on the inner peripheral surface of the locking sleeve (54), and a second step (55a) is formed on the outer peripheral surface of the support sleeve (55), the first step (54a) and the second step (55a) respectively abut against the axial ends of the crimping ring (56) to axially position the crimping ring (56).

13. The connector core assembly according to any preceding claim,wherein the grounding terminal (4) comprises:a mating part (41) located at one end of the grounding terminal (4), used for mating with a mating grounding terminal;a connecting part (42) located at the other end of the grounding terminal (4), used for electrical connection to a grounding wire; anda block part (40) located between the mating part (41) and the connecting part (42) and adapted to be fixed in the grounding terminal hole (104),wherein the cross-section of the block part (40) is horseshoe shaped, and the grounding terminal hole (104) cooperates with the block part (40) to position the block part (40).

14. The connector core assembly according to claim 13,wherein a first snap slot (4a) is formed on the block part (40), and a second snap slot (104a) is formed on the inner wall surface of the grounding terminal hole (104), the first snap slot (4a) and the second snap slot (104a) form a C-shaped snap slot;wherein the connector core assembly further comprises a C-shaped holder (43), which is inserted into the C-shaped snap slot composed of the first snap slot (4a) and the second snap slot (104a) to axially position the grounding terminal (4).

15. The connector core assembly according to claim 9 or any claim dependent thereon, wherein the end cover (7) further comprises a buckle (71) connected to the side edge of the cover plate (70), and a slot hole (71a) is formed in the buckle (71), a protrusion (171a) is formed on the outer side of the rear end of the core body (1), and the protrusion (171a) is engaged into the slot hole (71a) of the buckle (71) to fix the end cover (7) to the rear end of the core body (1);wherein the end cover (7) further comprises multiple engagement posts (76) protruding from the inner side of the cover plate (70), and multiple engagement holes (106) are formed in the rear end surface of the core body (1), the multiple engagement posts (76) are respectively inserted into the multiple engagement holes (106) in an interference fit manner to increase the engagement force between the end cover (7) and the core body (1).

16. A connector, compri sing:a connector housing; andthe connector core assembly according to any one of claims 1-15 which is inserted into the connector housing.

17. The connector according to claim 16,wherein a threaded hole (4b) is formed in the grounding terminal (4), and a connection hole is formed in the connector housing;wherein the connector further comprises a threaded connection piece (44) that passes through the connection hole and is threaded into the threaded hole (4b) to fix the connector core assembly in the connector housing.18

Images