Sealing assembly, electrical connection assembly and connector

Abstract

The utility model discloses a sealing assembly, electric connection assembly and connector. The sealing assembly includes: the shell of accommodating, be suitable for being inserted in the shell of connector, including the front end wall and the periphery wall that extends from the rear of front end wall, the front end wall and the periphery wall define the accommodating cavity with rear opening, the elastic sealing block is at least partially contained in the accommodating cavity, and the rear cover is opposite with the rear opening in a part. The front end wall, the elastic sealing block and the rear cover respectively form with the longitudinal slot for accommodating the flexible flat piece. The rear cover is suitable for with the shell joint, and with the front end wall common extrusion the elastic sealing block, to make the elastic sealing block seally fit on the flexible flat piece and the accommodating shell. The utility model discloses the structure of sealing assembly is simple, and easy to design manufacture and assemble, can improve production efficiency and reduce cost.

Description

Technical Field

[0001] This utility model relates to a sealing component, an electrical connection component including the sealing component, and a connector including the electrical connection component. Background Technology

[0002] In existing technologies, sealing of connectors' flexible flat cables (FFC) or flexible printed circuit boards (FPC) is typically achieved using dispensing or secondary molding sealing methods. However, dispensing adhesives have a long curing time, resulting in low production efficiency and high production costs. On the other hand, secondary molding sealing involves complex processes, high mold investment costs, and long standard production times, which also lead to high production costs. Utility Model Content

[0003] The purpose of this utility model is to solve at least one aspect of the aforementioned problems and defects existing in the prior art.

[0004] According to one aspect of the present invention, a sealing assembly is provided. The sealing assembly has a front end and a rear end opposite each other in its longitudinal direction. The sealing assembly includes: a receiving shell adapted to be inserted into a connector housing, including a front end wall and a peripheral wall extending rearwardly from the front end wall, the front end wall and the peripheral wall defining a receiving cavity having a rear opening; a resilient sealing block at least partially received in the receiving cavity; and a rear cover, a portion of which is opposite the rear opening. Longitudinal grooves for receiving a flexible flat member are formed in the front end wall, the resilient sealing block, and the rear cover. The rear cover is adapted to engage with the housing and, together with the front end wall, press the resilient sealing block to sealably against the flexible flat member and the receiving shell.

[0005] According to an exemplary embodiment of the present invention, at least two longitudinal grooves are formed in the front wall, the elastic sealing block and the rear cover respectively, the at least two longitudinal grooves are spaced apart in the height direction of the sealing assembly, and the width direction of the longitudinal grooves is along the transverse direction of the sealing assembly.

[0006] According to another exemplary embodiment of the present invention, the rear cover is adapted to move relative to the receiving shell between a pre-assembled position and a working position located in front of the pre-assembled position. In the pre-assembled position, the rear cover engages with the receiving shell and prevents the resilient sealing block from disengaging from the receiving shell. In the working position, the rear cover is adapted to engage with the housing.

[0007] According to another exemplary embodiment of the present invention, the rear cover includes: a rear end wall opposite to the rear opening; and a pressing portion protruding forward from the rear end wall. When the rear cover is in the working position, the pressing portion is inserted into the receiving cavity to press the resilient sealing block.

[0008] According to another exemplary embodiment of the present invention, the cross-section of the extrusion portion has a shape corresponding to the rear end face of the elastic sealing block.

[0009] According to another exemplary embodiment of the present invention, at least at the front end and near the front end of the extrusion section, the cross-section of the extrusion section gradually decreases from back to front.

[0010] According to another exemplary embodiment of the present invention, when the back cover is in the pre-assembled position, the back cover and the front end wall do not compress the elastic sealing block.

[0011] According to another exemplary embodiment of the present invention, when the rear cover is in the pre-assembled position, the rear end face of the elastic sealing block does not extend beyond the rear opening.

[0012] According to another exemplary embodiment of the present invention, the elastic sealing block is made of gel.

[0013] According to another exemplary embodiment of the present invention, the elastic sealing block is an integrally formed piece.

[0014] According to another exemplary embodiment of the present invention, the rear cover includes: a rear end wall opposite to the rear opening; and a side wall extending forward from the rear end wall. A receiving space is formed between the side wall and the peripheral wall, the receiving space being adapted to receive a housing wall of the housing. A latch is provided on the side wall, and an engaging portion is provided at the rear end of the housing, the latch being adapted to selectively engage with the engaging portion or a locking portion on the housing wall.

[0015] According to another exemplary embodiment of the present invention, the sealing assembly further includes a sealing ring fitted on the peripheral wall of the receiving shell and adapted to be pressed between the receiving shell and the housing to achieve a seal between the two.

[0016] According to another aspect of the present invention, an electrical connection assembly is provided. The electrical connection assembly includes: the aforementioned sealing assembly; and a flexible flat member inserted into the longitudinal slot for transmitting current.

[0017] According to an exemplary embodiment of the present invention, at least two longitudinal grooves are formed in the front end wall, the elastic sealing block, and the rear cover, respectively. The at least two longitudinal grooves are spaced apart in the height direction of the sealing assembly, and the width direction of the longitudinal grooves is along the transverse direction of the sealing assembly. The electrical connection assembly includes at least two flexible flat members, which are spaced apart in the height direction and pass through the at least two longitudinal grooves respectively.

[0018] According to another exemplary embodiment of the present invention, the width direction of the flexible flat member is along the transverse direction of the sealing assembly, and the electrical connection assembly includes at least two of the flexible flat members, which are arranged side by side in the transverse direction and pass through the same longitudinal groove.

[0019] According to another exemplary embodiment of the present invention, the flexible flat component is a flexible flat cable or a flexible circuit board.

[0020] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes: a terminal electrically connected to the front end of the flexible flat member.

[0021] According to another aspect of the present invention, a connector is provided. The connector includes: a housing, a housing wall having a defined rear port; and the aforementioned electrical connection assembly. The receiving shell of the sealing assembly is inserted into the rear port, and the flexible flat member extends from the rear port.

[0022] According to an exemplary embodiment of the present invention, the rear cover includes: a rear end wall opposite to the rear opening; and a side wall extending forward from the rear end wall. A receiving space is formed between the side wall and the peripheral wall, the receiving space being used to receive the housing wall. The rear end of the receiving housing is provided with an engaging portion, the outer peripheral surface of the housing wall is provided with a locking portion, and the side wall of the rear cover is provided with a latch, the latch being adapted to selectively engage with either the engaging portion or the locking portion.

[0023] According to another exemplary embodiment of the present invention, the engaging portion and / or the locking portion is a locking protrusion, and the latch is a slot or elastic hook formed on the side wall.

[0024] According to another exemplary embodiment of the present invention, a receiving groove is also formed on the side wall. The receiving groove is arranged side by side with the latch behind the latch and is connected to the latch by a connecting section. The receiving groove is adapted to accommodate the latching part when the latch moves to the front of the latching part.

[0025] In the foregoing exemplary embodiments of the present invention, the sealing assembly achieves a seal between the flexible sealing block and the housing by longitudinally pressing the elastic sealing block against the housing and the rear cover, causing the elastic sealing block to expand in other directions and tightly adhere to the flexible flat member and the housing. This sealing method has a simple structure, is easy to design, manufacture, and assemble, and can greatly improve production efficiency and reduce costs.

[0026] Other objects and advantages of the present invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0027] Figure 1 An exploded view of a connector according to an exemplary embodiment of the present invention is shown; Figure 2 This diagram shows a perspective view of a connector according to an exemplary embodiment of the present invention, wherein the rear cover is in a pre-assembled position; Figure 3 This diagram shows a longitudinal sectional view of a connector according to an exemplary embodiment of the present invention, with the rear cover in a pre-assembled position. Figure 4 This diagram shows a perspective view of a connector according to an exemplary embodiment of the present invention, with the rear cover in the working position; Figure 5 This diagram shows a longitudinal sectional view of a connector according to an exemplary embodiment of the present invention, with the rear cover in the working position; Figure 6 A perspective view of an electrical connection assembly according to an exemplary embodiment of the present invention is shown; Figure 7 An exploded view of a sealing assembly according to an exemplary embodiment of the present invention is shown; Figure 8 This diagram shows a perspective view of a back cover according to an exemplary embodiment of the present invention. Detailed Implementation

[0028] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of this utility model with reference to the accompanying drawings is intended to explain the overall concept of this utility model and should not be construed as a limitation thereof.

[0029] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0030] According to a general technical concept of the present invention, a sealing assembly is provided. The sealing assembly has a front end and a rear end opposite each other in its longitudinal direction. The sealing assembly includes: a receiving shell adapted to be inserted into a connector housing, including a front end wall and a peripheral wall extending rearwardly from the front end wall, the front end wall and the peripheral wall defining a receiving cavity having a rear opening; a resilient sealing block at least partially received in the receiving cavity; and a rear cover, a portion of which is opposite the rear opening. Longitudinal grooves for receiving a flexible flat member are respectively formed in the front end wall, the resilient sealing block, and the rear cover. The rear cover is adapted to engage with the housing and, together with the front end wall, press the resilient sealing block so that the resilient sealing block is sealingly fitted onto the flexible flat member and the receiving shell.

[0031] According to another general technical concept of this utility model, an electrical connection assembly is provided. The electrical connection assembly includes: the aforementioned sealing assembly; and a flexible flat member, inserted into the longitudinal slot for transmitting current.

[0032] According to another overall technical concept of the present invention, a connector is provided. The connector includes: a housing, a housing wall having a defined rear port; and the aforementioned electrical connection assembly. The receiving shell of the sealing assembly is inserted into the rear port, and the flexible flat member extends from the rear port.

[0033] Figure 1 An exploded view of a connector according to an exemplary embodiment of the present invention is shown; Figure 2 A perspective view of a connector according to an exemplary embodiment of the present invention is shown, wherein the rear cover 12 is in a pre-assembled position; Figure 3 This diagram shows a longitudinal sectional view of a connector according to an exemplary embodiment of the present invention, wherein the rear cover 12 is in a pre-assembled position; Figure 4 This diagram shows a perspective view of a connector according to an exemplary embodiment of the present invention, wherein the rear cover 12 is in the working position; Figure 5 This diagram shows a longitudinal sectional view of a connector according to an exemplary embodiment of the present invention, wherein the rear cover 12 is in the working position; Figure 6 A perspective view of an electrical connection assembly 2 according to an exemplary embodiment of the present invention is shown; Figure 7 An exploded view of a sealing assembly 1 according to an exemplary embodiment of the present invention is shown; Figure 8 This diagram shows a perspective view of a rear cover 12 according to an exemplary embodiment of the present invention.

[0034] like Figures 1 to 8As shown, in an exemplary embodiment of the present invention, a sealing assembly 1 is disclosed. The sealing assembly 1 has a front end and a rear end opposite each other in its longitudinal Y direction (i.e., the direction of installation to the connector). The sealing assembly 1 mainly includes a receiving shell 11, an elastic sealing block 13, and a rear cover 12.

[0035] The receiving shell 11 is adapted to be inserted into the housing 3 of the connector. The receiving shell 11 includes a front end wall 111 and a peripheral wall 112 extending rearward from the front end wall 111. The front end wall 111 and the peripheral wall 112 define a receiving cavity 110 having a rear opening 110a. A resilient sealing block 13 is at least partially received in the receiving cavity 110. A portion of the rear cover 12 is opposite to the rear opening 110a. A first longitudinal groove 111a, a second longitudinal groove 130, and a third longitudinal groove 121a for receiving a flexible flat member 21 are respectively formed in the front end wall 111, the resilient sealing block 13, and the rear cover 12. According to one embodiment of the present invention, the flexible flat member 21 may be a flexible flat cable (FFC) or a flexible circuit board (FPC).

[0036] The rear cover 12 is adapted to engage with the housing 3 and, together with the front end wall 111, press the resilient sealing block 13 so that the resilient sealing block 13 fits in a sealing manner against the flexible flat member 21 and the receiving housing 11.

[0037] Specifically, the rear cover 12 is adapted to move relative to the receiving shell 11 between a pre-assembled position and a working position located in front of the pre-assembled position. In its pre-assembled position, the rear cover 12 engages with the receiving shell 11 and restricts the resilient sealing block 13 from disengaging from the receiving shell 11, such that the sealing assembly 1 forms a pre-assembled part for easy transport, storage, and installation to the connector. In its working position, the rear cover 12 is adapted to engage with the housing 3 and, together with the front end wall 111, compress the resilient sealing block 13 so that the resilient sealing block 13 is sealingly fitted onto the flexible flat member 21 and the receiving shell 11.

[0038] The sealing assembly 1 achieves a seal between the flexible flat member 21 and the housing 11 by compressing the elastic sealing block 13 longitudinally (Y) with the housing 11 and the rear cover 12. This causes the elastic sealing block 13 to expand in other directions and tightly adhere to the flexible flat member 21 and the peripheral wall 112 of the housing 11. This sealing method has a simple structure, is easy to design, manufacture, and assemble, and can greatly improve production efficiency and reduce costs.

[0039] At least two first longitudinal grooves 111a, at least two second longitudinal grooves 130, and at least two third longitudinal grooves 121a are formed in the front wall 111, the elastic sealing block 13, and the rear cover 12, respectively. These at least two first longitudinal grooves 111a, at least two second longitudinal grooves 130, and at least two third longitudinal grooves 121a are spaced apart in the height direction Z of the sealing assembly 1 to simultaneously accommodate two rows of flexible flat members 21 spaced apart in the height direction Z. The width directions of the first longitudinal grooves 111a, second longitudinal grooves 130, and third longitudinal grooves 121a are respectively along the transverse direction X of the sealing assembly 1. The transverse direction X and the height direction Z are perpendicular to each other and respectively perpendicular to the longitudinal direction Y.

[0040] The width of the first longitudinal groove 111a, the maximum width of the second longitudinal groove 130 (i.e., the width of the second longitudinal groove 130 when the elastic sealing block 13 is not deformed), and the width of the third longitudinal groove 121a are slightly larger than the width of the flexible flat member 21. The height of the first longitudinal groove 111a, the maximum height of the second longitudinal groove 130 (i.e., the height of the second longitudinal groove 130 when the elastic sealing block 13 is not deformed), and the height of the third longitudinal groove 121a are slightly larger than the thickness of the flexible flat member 21 so that the flexible flat member 21 can pass through.

[0041] The rear cover 12 includes a rear end wall 121 and a pressing portion 123. The rear end wall 121 is opposite to the rear opening 110a. The pressing portion 123 protrudes forward from the rear end wall 121. When the rear cover 12 is in the working position, the pressing portion 123 is inserted into the receiving cavity 110 to press the resilient sealing block 13.

[0042] The cross-section of the extrusion portion 123 has a shape corresponding to the rear end face of the elastic sealing block 13. Specifically, the cross-section of the extrusion portion 123 is similar in shape to the rear end face of the elastic sealing block 13, is positioned opposite to it, and is not larger than the rear end face of the elastic sealing block 13, so as to uniformly extrude the elastic sealing block 13.

[0043] At least at and near the front end of the extrusion section 123, optionally along the entire longitudinal length of the extrusion section 123, the cross-section of the extrusion section 123 gradually decreases from back to front.

[0044] However, the present invention is not limited to the embodiments shown in the figure. For example, in some other embodiments, when the rear cover 12 is in the pre-assembled position, the rear end of the elastic sealing block 13 extends out of the rear opening 110a. The rear cover 12 may not be provided with the pressing part 123, but the elastic sealing block 13 may be directly contacted and pressed by the rear end wall 121.

[0045] like Figures 1 to 8As shown, when the rear cover 12 is in the pre-assembled position, the rear cover 12 and the front end wall 111 do not compress the elastic sealing block 13, so as to easily hold the rear cover 12 in the pre-assembled position. When the rear cover 12 is in the pre-assembled position, the peripheral wall 112 of the receiving shell 11 may not compress the elastic sealing block 13, or may slightly compress the elastic sealing block 13, so as to easily hold the elastic sealing block 13 in the receiving cavity 110.

[0046] When the rear cover 12 is in the pre-assembled position, the rear end face of the elastic sealing block 13 does not extend beyond the rear opening 110a.

[0047] Optionally, the elastic sealing block 13 is made of gel to facilitate deformation under pressure, thereby enabling it to achieve a good sealing effect. However, this invention is not limited to this, and the elastic sealing block 3 can also be made of other suitable elastic materials. The stiffness of the housing 11 and the back cover 12 is much greater than that of the elastic sealing block 3; for example, the housing 11 and the back cover 12 are made of plastic to allow the elastic sealing block 3 to be deformed by compression.

[0048] In the illustrated embodiment, the resilient sealing block 13 is a single, integrally formed component for ease of manufacture and installation. However, the present invention is not limited to the illustrated embodiment; for example, in other embodiments, the resilient sealing block 13 may also be formed by splicing two or more sealing blocks together.

[0049] like Figures 1 to 8 As shown, the rear cover 12 includes a rear end wall 121 and a side wall 122. The rear end wall 121 is opposite to the rear opening 110a. The side wall 122 extends forward from the rear end wall 121. A receiving space 100 is formed between the side wall 122 and the peripheral wall 112, which is adapted to receive the housing wall 31 of the housing 3. A latch 124 is provided on the side wall 122, and an engaging portion 113 is provided at the rear end of the housing 11. The latch 124 is adapted to selectively engage with the engaging portion 113 or the locking portion 311 on the housing wall 31.

[0050] The sealing assembly 1 also includes a sealing ring 14, which is fitted onto the peripheral wall 112 of the receiving shell 11, located in the receiving space 100, and is adapted to be pressed between the receiving shell 11 and the housing 3 of the connector to achieve a seal between the two.

[0051] like Figures 1 to 8 As shown, in another exemplary embodiment of this utility model, an electrical connection assembly 2 is also disclosed. The electrical connection assembly 2 mainly includes the aforementioned sealing assembly 1 and a flexible flat member 21. The flexible flat member 21 is inserted into a first longitudinal groove 111a, a second longitudinal groove 130, and a third longitudinal groove 121a. The flexible flat member 21 is used to transmit current; for example, the flexible flat member 21 is a flexible flat cable or a flexible circuit board.

[0052] At least two first longitudinal grooves 111a, at least two second longitudinal grooves 130, and at least two third longitudinal grooves 121a are formed in the front wall 111, the elastic sealing block 13, and the rear cover 12, respectively. The at least two first longitudinal grooves 111a, at least two second longitudinal grooves 130, and at least two third longitudinal grooves 121a are spaced apart in the height direction Z of the sealing assembly 1. The width directions of the first longitudinal grooves 111a, second longitudinal grooves 130, and third longitudinal grooves 121a are along the transverse direction X of the sealing assembly 1, respectively. The electrical connection assembly 2 includes at least two flexible flat members 21, which are spaced apart in the height direction Z and pass through the at least two first longitudinal grooves 111a, at least two second longitudinal grooves 130, and at least two third longitudinal grooves 121a, respectively.

[0053] The width direction of the flexible flat member 21 is along the transverse X of the sealing assembly 1. The electrical connection assembly 2 includes at least two flexible flat members 21, which are arranged side by side in the transverse X and pass through the same first longitudinal groove 111a, second longitudinal groove 130 and third longitudinal groove 121a.

[0054] In the illustrated embodiment, the electrical connection assembly 2 includes four flexible flat members 21 arranged in two rows and two columns along the transverse X and height Z directions. However, the present invention is not limited to the illustrated embodiment. For example, in other embodiments, the number of rows and columns of the flexible flat members 21 can be adjusted as needed.

[0055] The electrical connection assembly 2 also includes terminals (not shown) that are electrically connected to the front end of the flexible flat member 21 and are adapted to be inserted into the housing 3 of the connector.

[0056] In another exemplary embodiment of the present invention, a connector is also disclosed. The connector includes a housing 3 and the aforementioned electrical connection assembly 2. The housing 3 has a housing wall 31 defining a rear port 30. The receiving shell 11 of the sealing assembly 1 is inserted into the rear port 30, and the flexible flat member 21 extends out from the rear port 30.

[0057] The rear cover 12 of the sealing assembly 1 includes a rear end wall 121 and a side wall 122. The rear end wall 121 is opposite to the rear opening 110a. The side wall 122 extends forward from the rear end wall 121. A receiving space 100 is formed between the side wall 122 and the peripheral wall 112, the receiving space 100 for receiving the housing wall 31.

[0058] The rear end of the housing 11 is provided with a locking part 113, the outer peripheral surface of the housing wall 31 is provided with a locking part 311, and the side wall 122 of the rear cover 12 is provided with a latch 124. The latch 124 is adapted to selectively engage with the locking part 113 or the locking part 311.

[0059] When the latch 124 engages with the engagement portion 113 of the housing 11, the rear cover 12 is held in the pre-assembled position. After the housing 11 is inserted into the housing 3, the rear cover 12 can be driven (e.g., pushed by an operator) forward from its pre-assembled position to disengage from the engagement portion 113, and then move forward to its working position to engage with the locking portion 311 of the housing 3.

[0060] The engaging part 113 and the locking part 311 are locking protrusions. The latch 124 is a slot formed on the side wall 122 of the rear cover 12 and is close to the front end of the side wall 122.

[0061] A receiving groove 122a is also formed on the side wall 122 of the rear cover 12. The receiving groove 122a is arranged side by side with the latch 124 behind the latch 124 and is connected to the latch 124 through a connecting section 122b. The receiving groove 122a is adapted to receive the engaging part 113 when the latch 124 moves to the front of the engaging part 113.

[0062] The rear end of the engaging portion 113 is provided with a first inclined surface 113a, which extends outward at an angle away from the peripheral wall 112. When the latch 124 moves forward from its pre-assembled position, the first inclined surface 113a can push the connecting section 122b behind the latch 124 to deform outward, so that the rear end of the latch 124 is driven to lift outward and disengage from the engaging portion 113.

[0063] The rear end of the locking part 311 is provided with a second inclined surface 311a, which extends obliquely forward and outward. When the latch 124 moves forward from its pre-assembled position, the second inclined surface 311a can push the side wall 122 in front of the latch 124 to deform outward, so that the front end of the latch 124 is driven to lift outward, thereby passing over the locking part 311 to engage with the front end of the locking part 311.

[0064] However, the present invention is not limited to the embodiments shown in the figure. For example, in other embodiments, the latch 124 may also be an elastic hook, and the engaging part 113 and / or the locking part 311 may be a locking protrusion or a slot.

[0065] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this utility model.

[0066] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation thereof.

[0067] While some embodiments of the general concept of this utility model have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of this utility model, the scope of which is defined by the claims and their equivalents.

[0068] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of this invention.

Claims

1. A sealing assembly having a front end and a rear end opposite each other in its longitudinal (Y) direction, characterized in that, The sealing assembly includes: The receiving shell (11), adapted to be inserted into the housing (3) of the connector, includes a front end wall (111) and a peripheral wall (112) extending rearward from the front end wall (111), the front end wall (111) and the peripheral wall (112) defining a receiving cavity (110) having a rear opening (110a). The resilient sealing block (13) is at least partially accommodated in the receiving cavity (110); and The rear cover (12), a portion of which is opposite the rear opening (110a), The front end wall (111), the elastic sealing block (13), and the rear cover (12) are respectively provided with longitudinal grooves (111a, 130, 121a) for accommodating the flexible flat part (21). The rear cover (12) is adapted to engage with the housing (3) and together with the front end wall (111) press the elastic sealing block (13) so that the elastic sealing block (13) is sealed against the flexible flat piece (21) and the receiving shell (11).

2. The sealing assembly according to claim 1, characterized in that: At least two longitudinal grooves (111a, 130, 121a) are formed in the front wall (111), the elastic sealing block (13), and the rear cover (12), respectively. The at least two longitudinal grooves (111a, 130, 121a) are spaced apart in the height direction (Z) of the sealing assembly (1), and the width direction of the longitudinal grooves (111a, 130, 121a) is along the transverse direction (X) of the sealing assembly (1).

3. The sealing assembly according to claim 1, characterized in that: The rear cover (12) is adapted to move relative to the receiving shell (11) between a pre-assembled position and a working position located in front of the pre-assembled position. In the pre-assembled position, the rear cover (12) engages with the receiving shell (11) and prevents the resilient sealing block (13) from disengaging from the receiving shell (11). In the working position, the rear cover (12) is adapted to engage with the housing (3).

4. The sealing assembly according to claim 3, characterized in that: The rear cover (12) includes: The rear end wall (121) is opposite to the rear opening (110a); and The extrusion section (123) protrudes forward from the rear end wall (121). When the rear cover (12) is in the working position, the pressing part (123) is inserted into the receiving cavity (110) to press the elastic sealing block (13).

5. The sealing assembly according to claim 4, characterized in that: The cross-section of the extrusion part (123) has a shape corresponding to the rear end face of the elastic sealing block (13).

6. The sealing assembly according to claim 5, characterized in that: At least at the front end and near the front end of the extrusion section (123), the cross-section of the extrusion section (123) gradually decreases from back to front.

7. The sealing assembly according to claim 3, characterized in that: When the rear cover (12) is in the pre-assembled position, the rear cover (12) and the front end wall (111) do not compress the elastic sealing block (13).

8. The sealing assembly according to claim 3, characterized in that: When the rear cover (12) is in the pre-assembled position, the rear end face of the elastic sealing block (13) does not extend beyond the rear opening (110a).

9. The sealing assembly according to claim 1, characterized in that: The elastic sealing block (13) is made of gel.

10. The sealing assembly according to claim 1, characterized in that: The elastic sealing block (13) is an integral part formed in one piece.

11. The sealing assembly according to any one of claims 1-10, characterized in that: The rear cover (12) includes: The rear end wall (121) is opposite to the rear opening (110a); and The sidewall (122) extends forward from the rear end wall (121). A receiving space (100) is formed between the side wall (122) and the peripheral wall (112), the receiving space (100) being adapted to receive the shell wall (31) of the shell (3). The side wall (122) is provided with a latch (124), and the rear end of the housing (11) is provided with a locking part (113). The latch (124) is adapted to selectively engage with the locking part (113) or the locking part (311) on the housing wall (31).

12. The sealing assembly according to any one of claims 1-10, characterized in that, Also includes: A sealing ring (14) is fitted onto the peripheral wall (112) of the receiving shell (11) and is adapted to be pressed between the receiving shell (11) and the housing (3) to achieve a seal between the two.

13. An electrical connection assembly, characterized in that, include: Sealing assembly (1) according to any one of claims 1-12; and A flexible flat member (21) is inserted into the longitudinal slots (111a, 130, 121a) for transmitting current.

14. The electrical connection assembly according to claim 13, characterized in that: At least two longitudinal grooves (111a, 130, 121a) are formed in the front wall (111), the elastic sealing block (13), and the rear cover (12), respectively. The at least two longitudinal grooves (111a, 130, 121a) are spaced apart in the height direction (Z) of the sealing assembly (1), and the width direction of the longitudinal grooves (111a, 130, 121a) is along the transverse direction (X) of the sealing assembly (1). The electrical connection assembly (2) includes at least two of the flexible flat members (21), which are spaced apart in the height direction (Z) and pass through the at least two longitudinal slots (111a, 130, 121a).

15. The electrical connection assembly according to claim 13, characterized in that: The width direction of the flexible flat member (21) is along the transverse (X) direction of the sealing assembly (1), and the electrical connection assembly (2) includes at least two of the flexible flat members (21), which are arranged side by side in the transverse (X) direction and pass through the same longitudinal groove (111a, 130, 121a).

16. The electrical connection assembly according to claim 13, characterized in that: The flexible flat component (21) is a flexible flat cable or a flexible circuit board.

17. The electrical connection assembly according to claim 13, characterized in that, Also includes: Terminals are electrically connected to the front end of the flexible flat member (21).

18. A connector, characterized in that, include: The housing (3) has a housing wall (31) that defines the rear port (30); and Electrical connection assembly (2) according to any one of claims 13-17. The receiving shell (11) of the sealing assembly (1) is inserted into the rear port (30), and the flexible flat member (21) is extended from the rear port (30).

19. The connector according to claim 18, characterized in that: The rear cover (12) includes: The rear end wall (121) is opposite to the rear opening (110a); and The sidewall (122) extends forward from the rear end wall (121). A receiving space (100) is formed between the side wall (122) and the peripheral wall (112), the receiving space (100) being used to receive the shell wall (31). The rear end of the housing (11) is provided with a locking part (113), the outer peripheral surface of the housing wall (31) is provided with a locking part (311), and the side wall (122) of the rear cover (12) is provided with a buckle (124). The buckle (124) is adapted to selectively engage with the locking part (113) or the locking part (311).

20. The connector according to claim 19, characterized in that: The engaging part (113) and / or the locking part (311) are locking protrusions, and the latch (124) is a slot or elastic hook formed on the side wall (122).

21. The connector according to claim 20, characterized in that: A receiving groove (122a) is also formed on the side wall (122). The receiving groove (122a) is arranged side by side with the latch (124) behind the latch (124) and is connected to the latch (124) through a connecting section (122b). The receiving groove (122a) is adapted to accommodate the latch (113) when the latch (124) moves to the front of the engaging part (113).

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