Electrical connection module and electronic device

Abstract

The invention discloses an electric connection module and electronic equipment. The electric connection module comprises a rear cover assembly and a coaxial connector. The rear cover assembly comprises: a rear cover in which a mounting hole is formed; and the sealing ring is jointed into the mounting hole of the rear cover, so that the rear cover and the sealing ring form an integrated piece. And the coaxial connector is inserted into the mounting hole of the rear cover and penetrates through the sealing ring. And the sealing ring is radially extruded between the inner circumferential surface of the mounting hole of the rear cover and the coaxial connector so as to seal the mounting hole. In the invention, the coaxial connector and the rear cover of the electronic equipment can be assembled together in advance to form an electric connection module. Therefore, the assembling operation of the electronic equipment is simplified, and the airtight performance and the electromagnetic shielding performance of the electronic equipment can be ensured.

Description

Technical Field

[0001] The present invention relates to an electrical connection module comprising a rear cover assembly and a coaxial connector, and an electronic device comprising the electrical connection module. Background Art

[0002] In the prior art, an in-vehicle camera typically includes a front cover, a rear cover, a circuit board, and a coaxial connector. The circuit board and coaxial connector are assembled in the front cover. The rear cover is assembled to the front cover and has a through-hole formed to allow the coaxial connector to pass through. To ensure the airtightness of the camera, sealant is usually poured into the gap between the coaxial connector and the rear cover to achieve a seal between the two. This makes camera assembly difficult and expensive. In addition, in the prior art, the outer terminals of the coaxial connector do not make electrical contact with the rear cover, or the electrical contact is poor, which reduces the electromagnetic shielding performance of the coaxial connector. Summary of the Invention

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the present invention, an electrical connection module is provided. The electrical connection module includes a rear cover assembly and a coaxial connector. The rear cover assembly includes a rear cover having a mounting hole formed therein; and a sealing ring engaged with the mounting hole in the rear cover, such that the rear cover and the sealing ring form a single piece. The coaxial connector is inserted into the mounting hole in the rear cover and passes through the sealing ring. The sealing ring is radially compressed between the inner circumference of the mounting hole in the rear cover and the coaxial connector to seal the mounting hole.

[0005] According to an exemplary embodiment of the present invention, the sealing ring is bonded to the inner circumference of the mounting hole of the back cover by a vulcanization process or by an adhesive; or the sealing ring is injection molded into the mounting hole of the back cover by an embedded injection molding process.

[0006] According to another exemplary embodiment of the present invention, the coaxial connector includes: an outer terminal formed with a central through hole; an insulator arranged in the central through hole of the outer terminal; and an inner terminal held in the central through hole of the outer terminal by the insulator, and the sealing ring is radially squeezed between the outer peripheral surface of the outer terminal and the inner peripheral surface of the mounting hole of the back cover to achieve sealing between the outer terminal and the back cover.

[0007] According to another exemplary embodiment of the present invention, the coaxial connector further comprises an inner seal, which is sleeved on the inner terminal and radially squeezed between the outer circumference of the inner terminal and the inner circumference of the central through hole of the outer terminal for sealing the central through hole.

[0008] According to another exemplary embodiment of the present invention, the coaxial connector further includes: a shielding connector mounted on the outer terminal and configured to electrically connect the outer terminal and the rear cover.

[0009] According to another exemplary embodiment of the present invention, the shielding connector includes: an annular body, which is mounted on the outer terminal; and a spring sheet, which is connected to the outer periphery of the annular body, and the spring sheet is used to electrically contact the back cover to electrically connect the outer terminal to the back cover.

[0010] According to another exemplary embodiment of the present invention, the shielding connector further includes: an elastic buckle connected to the outer periphery of the annular body and formed with a slot, and a protrusion formed on the outer terminal, the protrusion engaging with the slot on the elastic buckle to fix the shielding connector to the outer terminal.

[0011] According to another exemplary embodiment of the present invention, the annular body has a front surface and a rear surface opposite to each other in the axial direction of the central through hole, the elastic sheet extends rearward from the rear surface of the annular body, and the elastic buckle extends forward from the front surface of the annular body.

[0012] According to another exemplary embodiment of the present invention, the shielding connector includes a plurality of spring plates, which are spaced apart in the circumferential direction of the annular body and are used for making electrical contact with the inner side of the back cover.

[0013] According to another exemplary embodiment of the present invention, the outer terminal includes: a base portion; and a cylindrical body, extending rearward from the rear surface of the base portion, the annular body of the shielding connector is sleeved on the cylindrical body, the protrusion is formed on the outer peripheral surface of the base portion, and the sealing ring is sleeved on the cylindrical body of the outer terminal.

[0014] According to another exemplary embodiment of the present invention, the spring clip of the shielding connector is squeezed between the rear surface of the base portion and the inner side of the rear cover in the axial direction of the central through hole, and the front surface of the annular body of the shielding connector is abutted against the rear surface of the base portion.

[0015] According to another exemplary embodiment of the present invention, a plurality of axially extending ribs are formed on the outer circumferential surface of the insulator, and the plurality of ribs are spaced apart in the circumferential direction of the insulator; the ribs on the insulator are interference fit with the inner wall surface of the outer terminal to fix the insulator in the central through hole of the outer terminal.

[0016] According to another exemplary embodiment of the present invention, the central through hole has an insertion opening located in the base portion, and a plurality of limiting protrusions are formed on the front surface of the base portion, and the plurality of limiting protrusions are spaced around the insertion opening and protrude toward the insertion opening; a positioning flange is formed at the front end of the insulator, and a positioning step is formed in the insertion opening, and the positioning flange of the insulator is located in the insertion opening and is axially positioned between the limiting protrusion and the positioning step.

[0017] According to another exemplary embodiment of the present invention, the positioning flange of the insulator has a front side and a rear side that are opposite in the axial direction of the central through hole, and the positioning step abuts against the rear side of the positioning flange of the insulator; the limiting protrusion is formed by stamping after the insulator is inserted into the central through hole and abuts against the front side of the positioning flange of the insulator.

[0018] According to another exemplary embodiment of the present invention, an inner positioning protrusion is formed on the inner circumferential surface of the outer terminal, and the front and rear ends of the inner seal are respectively pressed against the rear end surface of the insulator and the inner positioning protrusion to axially position the inner seal.

[0019] According to another exemplary embodiment of the present invention, the back cover includes a peripheral wall and a rear end wall connected to the rear end of the peripheral wall, an outer cylinder portion is formed on the outer side of the rear end wall, the mounting hole is axially connected to the inner cavity of the outer cylinder portion, and the rear ends of the outer terminal and the inner terminal extend into the inner cavity of the outer cylinder portion to respectively mate with the mating outer terminal and the mating inner terminal of the mating connector inserted into the inner cavity of the outer cylinder portion.

[0020] According to another exemplary embodiment of the present invention, an annular boss surrounding the mounting hole is formed on the inner side of the rear end wall, and the elastic piece of the shielding connector abuts against the annular boss.

[0021] According to another exemplary embodiment of the present invention, the electrical connection module further includes: a circuit board disposed in the rear cover and electrically connected to the outer terminals and the inner terminals of the coaxial connector.

[0022] According to another exemplary embodiment of the present invention, a first solder pad and a second solder pad are formed on the circuit board, and the base portion of the outer terminal and the front end of the inner terminal are soldered to the first solder pad and the second solder pad, respectively, in a surface mounting manner.

[0023] According to another exemplary embodiment of the present invention, a raised plug pin is formed on the front surface of the base portion of the external terminal, and the plug pin is suitable for being plugged into the first socket on the circuit board to electrically connect the external terminal to the circuit board; and / or a solder pad is formed on the front surface of the base portion of the external terminal, and the solder pad is suitable for being soldered to the circuit board in a surface mount manner.

[0024] According to another exemplary embodiment of the present invention, the front end of the inner terminal extends from the insulator and the outer terminal and is plugged into the second socket on the circuit board to electrically connect the inner terminal to the circuit board; and / or the front end of the inner terminal is suitable for being soldered to the circuit board in a surface mount manner.

[0025] According to another aspect of the present invention, an electronic device is provided, comprising: the aforementioned electrical connection module; and a front cover assembled to a rear cover of the electrical connection module.

[0026] According to an exemplary embodiment of the present invention, the electronic device is a camera.

[0027] In the aforementioned exemplary embodiments of the present invention, the coaxial connector and the back cover of the electronic device can be pre-assembled together to form an electrical connection module. This simplifies the assembly operation of the electronic device and ensures the airtightness and electromagnetic shielding performance of the electronic device.

[0028] 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, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A perspective schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the rear side;

[0030] Figure 2 A perspective schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the front side;

[0031] Figure 3 An exploded schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the front side;

[0032] Figure 4 An axial cross-sectional view showing an electrical connection module according to an exemplary embodiment of the present invention;

[0033] Figure 5 An exploded schematic diagram showing a coaxial connector and a rear cover assembly of an electrical connection module according to an exemplary embodiment of the present invention;

[0034] Figure 6 A schematic diagram showing the assembly of a coaxial connector and a rear cover assembly of an electrical connection module according to an exemplary embodiment of the present invention;

[0035] Figure 7 A perspective schematic diagram showing a coaxial connector of an electrical connection module according to an exemplary embodiment of the present invention;

[0036] Figure 8 An axial cross-sectional view showing a coaxial connector of an electrical connection module according to an exemplary embodiment of the present invention;

[0037] Figure 9 An exploded schematic diagram showing a coaxial connector according to an exemplary embodiment of the present invention;

[0038] Figure 10 An exploded schematic diagram shows an outer terminal and a shield connector of a coaxial connector according to an exemplary embodiment of the present invention. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be further described in detail below through examples and 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 overall inventive concept of the present invention and should not be construed as limiting the present invention.

[0040] In addition, in the following detailed description, for ease of explanation, numerous specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments can be practiced without these specific details. In other cases, well-known structures and devices are shown in diagrammatic form to simplify the accompanying drawings.

[0041] According to one general technical concept of the present invention, an electrical connection module is provided. The electrical connection module includes a rear cover assembly and a coaxial connector. The rear cover assembly includes a rear cover having a mounting hole formed therein; and a sealing ring engaged with the mounting hole in the rear cover, such that the rear cover and the sealing ring form a single piece. The coaxial connector is inserted into the mounting hole in the rear cover and passes through the sealing ring. The sealing ring is radially compressed between the inner circumference of the mounting hole in the rear cover and the coaxial connector to seal the mounting hole.

[0042] According to another general technical concept of the present invention, there is provided an electronic device comprising: the aforementioned electrical connection module; and a front cover assembled to a rear cover of the electrical connection module.

[0043] Figure 1A perspective schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the rear side; Figure 2 A perspective schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the front side; Figure 3 An exploded schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the front side;

[0044] Figure 4 An axial cross-sectional view showing an electrical connection module according to an exemplary embodiment of the present invention; Figure 5 An exploded schematic diagram showing a coaxial connector 1 and a rear cover assembly 200 of an electrical connection module according to an exemplary embodiment of the present invention; Figure 6 A schematic diagram showing the assembly of a coaxial connector 1 and a rear cover assembly 200 of an electrical connection module according to an exemplary embodiment of the present invention; Figure 7 A perspective schematic diagram showing a coaxial connector 1 of an electrical connection module according to an exemplary embodiment of the present invention; Figure 8 An axial cross-sectional view showing a coaxial connector 1 of an electrical connection module according to an exemplary embodiment of the present invention; Figure 9 An exploded schematic diagram showing a coaxial connector 1 according to an exemplary embodiment of the present invention; Figure 10 An exploded schematic diagram showing the outer terminal 11 and the shielding connector 16 of the coaxial connector 1 according to an exemplary embodiment of the present invention.

[0045] like Figures 1 to 10 As shown, in an exemplary embodiment of the present invention, an electrical connection module is disclosed. The electrical connection module includes: a back cover assembly 200 and a coaxial connector 1. The back cover assembly 200 includes a back cover 2 and a sealing ring 25. A mounting hole 201 is formed in the back cover 2. The sealing ring 25 is engaged with the mounting hole 201 of the back cover 2, so that the back cover 2 and the sealing ring 25 form an integral part. The coaxial connector 1 is inserted into the mounting hole 201 of the back cover 2 and passes through the sealing ring 25. The sealing ring 25 is radially squeezed between the inner circumference of the mounting hole 201 of the back cover 2 and the coaxial connector 1 to seal the mounting hole 201.

[0046] like Figures 1 to 10 As shown, in the illustrated embodiment, the sealing ring 25 is bonded to the inner circumference of the mounting hole 201 of the back cover 2 through a vulcanization process. However, the present invention is not limited to the illustrated embodiment. For example, in one exemplary embodiment of the present invention, the sealing ring 25 can be bonded to the inner circumference of the mounting hole 201 of the back cover 2 using an adhesive. In another exemplary embodiment of the present invention, the sealing ring 25 can be injection molded into the mounting hole 201 of the back cover 2 through an insert injection molding process.

[0047] like Figures 1 to 10As shown, in the illustrated embodiment, the coaxial connector 1 includes an outer terminal 11, an insulator 13, and an inner terminal 12. A central through-hole 101 is formed in the outer terminal 11. The insulator 13 is disposed in the central through-hole 101 of the outer terminal 11. The inner terminal 12 is retained in the central through-hole 101 of the outer terminal 11 by the insulator 13. A sealing ring 25 is radially compressed between the outer circumference of the outer terminal 11 and the inner circumference of the mounting hole 201 of the rear cover 2 to achieve a seal between the outer terminal 11 and the rear cover 2.

[0048] like Figures 1 to 10 As shown, in the illustrated embodiment, the coaxial connector 1 further includes an inner seal 14. The inner seal 14 is sleeved on the inner terminal 12 and radially pressed between the outer circumference of the inner terminal 12 and the inner circumference of the central through hole 101 of the outer terminal 11, for sealing the central through hole 101.

[0049] like Figures 1 to 10 As shown, in the illustrated embodiment, the coaxial connector 1 further includes a shielding connector 16 , which is mounted on the outer terminal 11 and is used to electrically connect the outer terminal 11 and the back cover 2 .

[0050] like Figures 1 to 10 As shown, in the illustrated embodiment, the shielding connector 16 includes an annular body 160 and a spring 162. The annular body 160 is sleeved onto the outer terminal 11. The spring 162 is connected to the outer periphery of the annular body 160. The spring 162 is used to electrically contact the rear cover 2 to electrically connect the outer terminal 11 to the rear cover 2.

[0051] like Figures 1 to 10 As shown, in the illustrated embodiment, the shielding connector 16 further includes an elastic buckle 163, which is connected to the outer periphery of the annular body 160 and formed with a locking groove 163a. ​​A protrusion 111a is formed on the outer terminal 11, and the protrusion 111a engages with the locking groove 163a on the elastic buckle 163 to fix the shielding connector 16 to the outer terminal 11.

[0052] like Figures 1 to 10 As shown, in the illustrated embodiment, the annular body 160 has a front surface and a rear surface that are opposite in the axial direction of the central through hole 101, the elastic piece 162 extends rearward from the rear surface of the annular body 160, and the elastic buckle 163 extends forward from the front surface of the annular body 160.

[0053] like Figures 1 to 10 As shown, in the illustrated embodiment, the shielding connector 16 includes a plurality of spring pieces 162 , which are spaced apart in the circumferential direction of the annular body 160 for electrically contacting the inner side of the rear cover 2 .

[0054] like Figures 1 to 10As shown, in the illustrated embodiment, the outer terminal 11 includes a base portion 111 and a cylindrical body 110. The cylindrical body 110 extends rearward from the rear surface of the base portion 111. The annular body 160 of the shielding connector 16 is sleeved onto the cylindrical body 110, and the protrusion 111a is formed on the outer circumferential surface of the base portion 111. The sealing ring 25 is sleeved onto the cylindrical body 110 of the outer terminal 11.

[0055] like Figures 1 to 10 As shown, in the illustrated embodiment, the spring piece 162 of the shielding connector 16 is squeezed between the rear surface of the base portion 111 and the inner side of the rear cover 2 in the axial direction of the central through hole 101, and the front surface of the annular body 160 of the shielding connector 16 is abutted against the rear surface of the base portion 111 to make electrical contact with the base portion 111.

[0056] like Figures 1 to 10 As shown, in the illustrated embodiment, a plurality of axially extending ribs 13a are formed on the outer circumferential surface of the insulator 13. The ribs 13a are spaced apart in the circumferential direction of the insulator 13. The ribs 13a on the insulator 13 have an interference fit with the inner wall surface of the outer terminal 11 to secure the insulator 13 in the central through hole 101 of the outer terminal 11.

[0057] like Figures 1 to 10 As shown, in the illustrated embodiment, the central through hole 101 has an insertion opening 101a located in the base portion 111. A plurality of positioning protrusions 11c are formed on the front surface of the base portion 111. The plurality of positioning protrusions 11c are spaced apart around the insertion opening 101a and protrude toward the insertion opening 101a. A positioning flange 13b is formed at the front end of the insulator 13, and a positioning step 11e is formed in the insertion opening 101a. The positioning flange 13b of the insulator 13 is located in the insertion opening 101a and is axially positioned between the positioning protrusion 11c and the positioning step 11e.

[0058] like Figures 1 to 10 As shown, in the illustrated embodiment, the positioning flange 13b of the insulator 13 has a front side and a rear side that are opposite in the axial direction of the central through hole 101, and the positioning step 11e abuts against the rear side of the positioning flange 13b of the insulator 13. The limiting protrusion 11c is formed by stamping after the insulator 13 is inserted into the central through hole 101 and abuts against the front side of the positioning flange 13b of the insulator 13.

[0059] like Figures 1 to 10 As shown, in the illustrated embodiment, an inner positioning protrusion 11d is formed on the inner circumferential surface of the outer terminal 11, and the front end and rear end of the inner seal 14 are respectively abutted against the rear end surface of the insulator 13 and the inner positioning protrusion 11d to axially position the inner seal 14.

[0060] like Figures 1 to 10As shown, in the illustrated embodiment, the back cover 2 includes a peripheral wall 20 and a rear end wall 21 connected to the rear end of the peripheral wall 20, an outer cylinder portion 23 is formed on the outer side of the rear end wall 21, the mounting hole 201 is axially connected to the inner cavity 203 of the outer cylinder portion 23, and the rear ends of the outer terminal 11 and the inner terminal 12 extend into the inner cavity 203 of the outer cylinder portion 23 to respectively mate with the matching outer terminal (not shown) and the matching inner terminal (not shown) of the matching connector (not shown) inserted into the inner cavity 203 of the outer cylinder portion 23.

[0061] like Figures 1 to 10 As shown, in the illustrated embodiment, an annular boss 22 surrounding the mounting hole 201 is formed on the inner side of the rear end wall 21 of the rear cover 2 , and the spring piece 162 of the shielding connector 16 abuts against the annular boss 22 .

[0062] like Figures 1 to 10 As shown, in the illustrated embodiment, the electrical connection module further includes a circuit board 3 , which is disposed in the rear cover 2 and electrically connected to the outer terminals 11 and the inner terminals 12 of the coaxial connector 1 .

[0063] like Figures 1 to 10 As shown, in the illustrated embodiment, a first solder pad (not shown) and a second solder pad (not shown) are formed on the circuit board 3, and the base portion 111 of the external terminal 11 and the front end 12a of the internal terminal 12 are respectively soldered to the first solder pad and the second solder pad in a surface mounting manner.

[0064] like Figures 1 to 10 As shown, in the illustrated embodiment, a protruding plug pin 11a is formed on the front surface of the base portion 111 of the external terminal 11. The plug pin 11a is suitable for being plugged into the first plug hole 31a on the circuit board 3 to electrically connect the external terminal 11 to the circuit board 3. However, the present invention is not limited to the illustrated embodiment. For example, a solder pad can be formed on the front surface of the base portion 111 of the external terminal 11, and the solder pad can be suitable for being soldered to the circuit board 3 in a surface mount manner.

[0065] like Figures 1 to 10 As shown, in the illustrated embodiment, the front end 12a of the inner terminal 12 extends from the insulator 13 and the outer terminal 11 and is inserted into the second insertion hole 32a on the circuit board 3 to electrically connect the inner terminal 12 to the circuit board 3. However, the present invention is not limited to the illustrated embodiment. For example, the front end 12a of the inner terminal 12 is suitable for being soldered to the circuit board 3 in a surface mounting manner.

[0066] like Figures 1 to 10 As shown, in another exemplary embodiment of the present invention, an electronic device is also disclosed. The electronic device includes the aforementioned electrical connection module and a front cover (not shown). The front cover is assembled to the rear cover 2 of the electrical connection module.

[0067] like Figures 1 to 10 As shown, in the illustrated embodiment, the electronic device is a camera, for example, a vehicle-mounted camera.

[0068] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved by those skilled in the art. The structures described in various embodiments can be freely combined without causing any conflicts in structure or principle. These changes should fall within the scope of protection of the present invention.

[0069] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify the preferred embodiments of the present invention and should not be construed as limiting the present invention.

[0070] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

[0071] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference in the claims should not be construed as limiting the scope of the invention.

Claims

1. An electrical connection module, characterized in that: include: The rear cover assembly (200) comprises: a rear cover (2) formed with a mounting hole (201); and A sealing ring (25) is engaged with the mounting hole (201) of the rear cover (2), so that the rear cover (2) and the sealing ring (25) become an integral piece; and The coaxial connector (1) is inserted into the mounting hole (201) of the rear cover (2) and passes through the sealing ring (25). The sealing ring (25) is radially squeezed between the inner circumference of the mounting hole (201) of the rear cover (2) and the coaxial connector (1) to seal the mounting hole (201).

2. The electrical connection module according to claim 1, wherein: The sealing ring (25) is bonded to the inner peripheral surface of the mounting hole (201) of the rear cover (2) by a vulcanization process or by an adhesive; or The sealing ring (25) is injection-molded into the mounting hole (201) of the rear cover (2) through an insert injection molding process.

3. The electrical connection module according to claim 1, wherein: The coaxial connector (1) comprises: An outer terminal (11) is formed with a central through hole (101); an insulator (13) disposed in the central through hole (101) of the outer terminal (11); and The inner terminal (12) is held in the central through hole (101) of the outer terminal (11) by the insulator (13). The sealing ring (25) is radially squeezed between the outer peripheral surface of the outer terminal (11) and the inner peripheral surface of the mounting hole (201) of the rear cover (2) to achieve sealing between the outer terminal (11) and the rear cover (2).

4. The electrical connection module according to claim 3, wherein: The coaxial connector (1) further comprises: An inner seal (14) is mounted on the inner terminal (12) and is radially pressed between the outer peripheral surface of the inner terminal (12) and the inner peripheral surface of the central through hole (101) of the outer terminal (11), for sealing the central through hole (101).

5. The electrical connection module according to claim 4, characterized in that: The coaxial connector (1) further comprises: A shielding connector (16) is mounted on the outer terminal (11) and is used to electrically connect the outer terminal (11) and the back cover (2).

6. The electrical connection module according to claim 5, characterized in that: The shielding connector (16) comprises: a ring body (160) mounted on the outer terminal (11); and The spring piece (162) is connected to the outer periphery of the annular body (160), The spring (162) is used to electrically contact the back cover (2) to electrically connect the external terminal (11) to the back cover (2).

7. The electrical connection module according to claim 6, wherein: The shielding connector (16) further comprises: The elastic buckle (163) is connected to the outer periphery of the annular body (160) and is formed with a clamping groove (163a). A protrusion (111a) is formed on the outer terminal (11), and the protrusion (111a) engages with a slot (163a) on the elastic buckle (163) to fix the shielding connector (16) to the outer terminal (11).

8. The electrical connection module according to claim 7, wherein: The annular body (160) has a front surface and a rear surface that are opposite to each other in the axial direction of the central through hole (101); the elastic sheet (162) extends rearward from the rear surface of the annular body (160); and the elastic buckle (163) extends forward from the front surface of the annular body (160).

9. The electrical connection module according to claim 6, wherein: The shielding connector (16) comprises a plurality of spring sheets (162), which are spaced apart in the circumferential direction of the annular body (160) and are used for electrically contacting the inner side of the rear cover (2).

10. The electrical connection module according to claim 7, wherein: The external terminal (11) comprises: a base portion (111); and The cylindrical body (110) extends rearward from the rear surface of the base portion (111); the annular body (160) of the shielding connector (16) is sleeved on the cylindrical body (110); the protrusion (111a) is formed on the outer peripheral surface of the base portion (111); and the sealing ring (25) is sleeved on the cylindrical body (110) of the external terminal (11).

11. The electrical connection module according to claim 10, characterized in that: The spring piece (162) of the shielding connector (16) is squeezed between the rear surface of the base portion (111) and the inner side of the rear cover (2) in the axial direction of the central through hole (101), and the front surface of the annular body (160) of the shielding connector (16) is in contact with the rear surface of the base portion (111).

12. The electrical connection module according to claim 10, wherein: A plurality of axially extending convex ribs (13a) are formed on the outer peripheral surface of the insulator (13), and the plurality of convex ribs (13a) are spaced apart and distributed in the circumferential direction of the insulator (13); The convex rib (13a) on the insulator (13) is interference-fitted with the inner wall surface of the external terminal (11) to fix the insulator (13) in the central through hole (101) of the external terminal (11).

13. The electrical connection module according to claim 12, wherein: The central through hole (101) has an insertion opening (101a) located in the base portion (111), and a plurality of limiting protrusions (11c) are formed on the front surface of the base portion (111), and the plurality of limiting protrusions (11c) are spaced around the insertion opening (101a) and protrude toward the insertion opening (101a); A positioning flange (13b) is formed at the front end of the insulator (13), and a positioning step (11e) is formed in the insertion port (101a). The positioning flange (13b) of the insulator (13) is located in the insertion port (101a) and is axially positioned between the limiting protrusion (11c) and the positioning step (11e).

14. The electrical connection module according to claim 13, wherein: The positioning flange (13b) of the insulator (13) has a front side and a rear side that are opposite in the axial direction of the central through hole (101), and the positioning step (11e) abuts against the rear side of the positioning flange (13b) of the insulator (13); The limiting protrusion (11c) is formed by stamping after the insulator (13) is inserted into the central through hole (101) and abuts against the front side of the positioning flange (13b) of the insulator (13).

15. The electrical connection module according to claim 4, characterized in that: An inner positioning protrusion (11d) is formed on the inner peripheral surface of the outer terminal (11), and the front end and the rear end of the inner seal (14) are respectively pressed against the rear end surface of the insulator (13) and the inner positioning protrusion (11d) to axially position the inner seal (14).

16. The electrical connection module according to claim 6, wherein: The rear cover (2) includes a peripheral wall (20) and a rear end wall (21) connected to the rear end of the peripheral wall (20); an outer cylinder portion (23) is formed on the outer side of the rear end wall (21); the mounting hole (201) is axially connected to the inner cavity (203) of the outer cylinder portion (23); the rear ends of the outer terminal (11) and the inner terminal (12) extend into the inner cavity (203) of the outer cylinder portion (23) to respectively mate with the mating outer terminal and the mating inner terminal of the mating connector inserted into the inner cavity (203) of the outer cylinder portion (23).

17. The electrical connection module according to claim 16, wherein: An annular boss (22) surrounding the mounting hole (201) is formed on the inner side of the rear end wall (21), and the spring piece (162) of the shielding connector (16) abuts against the annular boss (22).

18. The electrical connection module according to claim 10, characterized in that: Also includes: A circuit board (3) is arranged in the rear cover (2) and is electrically connected to the outer terminal (11) and the inner terminal (12) of the coaxial connector (1).

19. The electrical connection module according to claim 18, wherein: A first soldering pad and a second soldering pad are formed on the circuit board (3), and the base portion (111) of the outer terminal (11) and the front end (12a) of the inner terminal (12) are respectively soldered to the first soldering pad and the second soldering pad in a surface mounting manner.

20. The electrical connection module according to claim 18, wherein: A protruding plug pin (11a) is formed on the front surface of the base portion (111) of the external terminal (11), and the plug pin (11a) is suitable for being plugged into a first plug hole (31a) on the circuit board (3) to electrically connect the external terminal (11) to the circuit board (3); and / or A soldering pad is formed on the front surface of the base portion (111) of the external terminal (11), and the soldering pad is suitable for being soldered to the circuit board (3) in a surface mounting manner.

21. The electrical connection module according to claim 18, wherein: The front end (12a) of the inner terminal (12) extends from the insulator (13) and the outer terminal (11) and is plugged into a second insertion hole (32a) on the circuit board (3) to electrically connect the inner terminal (12) to the circuit board (3); and / or The front end (12a) of the inner terminal (12) is suitable for being soldered to the circuit board (3) in a surface mounting manner.

22. An electronic device, characterized in that: include: The electrical connection module according to any one of claims 1 to 21; and The front cover is assembled onto the rear cover (2) of the electrical connection module.

23. The electronic device according to claim 22, wherein: The electronic device is a camera.

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