Waterproof terminal

Abstract

The utility model relates to a waterproof terminal, and relates to the technical field of connection terminals, the waterproof terminal comprises a female socket and a male plug connected with a cable, the male plug is fixedly provided with a plugging part, the female socket is provided with a plugging groove for the plugging part to be plugged in, the outer side surface of the female socket is fixedly provided with a clamping block, the male plug is fixedly provided with a clamping plate, and the clamping plate is provided with a clamping groove for the plugging part to be plugged in. The clamping plate is provided with a clamping opening for the clamping block to be clamped and limited. The periphery of the inserting part is fixedly sleeved with a sealing ring, and a plurality of elastic protruding strips are fixedly arranged on the periphery of the sealing ring in a winding mode; when the male plug and the female socket are plugged, the elastic protruding strips are pressed and abut against the inner walls of the plugging grooves. Due to the arrangement of the sealing ring and the plurality of elastic raised lines on the sealing ring, the possibility that rainwater permeates into the plugging gap between the male plug and the female socket to damage signals transmitted by the waterproof terminal is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of connection terminals, and in particular to a waterproof terminal. Background Art

[0002] With the improvement of environmental awareness and the development of new energy technologies, electric vehicles, as a clean and efficient means of transportation, have received widespread attention and favor. In electric vehicles, circuit connection is a crucial link, which is directly related to the performance and safety of electric vehicles. Terminals, as important components of circuit connection, play a vital role.

[0003] In the technical field of electric vehicles, the design and function of terminals are crucial to ensure the stable transmission of current and signals. Common electric vehicle terminal designs include male plugs and female sockets that plug into each other. These components connect key components such as batteries, motors, and controllers through precise matching to achieve stable operation of the internal circuits of electric vehicles.

[0004] However, while this design works effectively in most situations, it may face some challenges in certain environments, such as rainy days. Since there are tiny gaps between the male plug and the female socket, rainwater may penetrate into the plug-in through these gaps, causing the plug-in to become wet or even accumulate water. This may not only affect the stable transmission of current and signals, but may also cause safety hazards such as short circuits or circuit failures, thus affecting the normal use of the battery vehicle. There is room for improvement. Utility Model Content

[0005] The purpose of this application is to provide a waterproof terminal to solve the problem that when the battery vehicle is used on rainy days, rainwater may penetrate into the gap between the male plug and the female socket, affecting the normal use of the battery vehicle.

[0006] The waterproof terminal provided in this application adopts the following technical solution:

[0007] A waterproof terminal comprises a female socket and a male plug connected to a cable, wherein the male plug is fixedly provided with an inserting portion, the female socket is provided with an inserting groove for inserting the inserting portion, a clamping block is fixedly provided on the outer surface of the female socket, the male plug is fixedly provided with a clamping plate, and the clamping plate is provided with a clamping interface for the clamping block to be clamped into a limited position; a sealing ring is fixedly sleeved on the outer periphery of the inserting portion, and a plurality of elastic convex strips are fixedly provided around the outer periphery of the sealing ring; when the male plug and the female socket are plugged in, the elastic convex strips are compressed and pressed against the inner wall of the inserting groove.

[0008] By adopting the above technical solution, when the male plug and the female socket are connected, due to the setting of the sealing ring and the elastic convex strip on the sealing ring, the elastic convex strip is compressed and pressed against the inner wall of the plug-in groove; therefore, when the waterproof terminal is used on a battery vehicle, the waterproof performance of the terminal is improved, and the possibility of rainwater penetrating into the plug-in gap between the male plug and the female socket and then destroying the signal transmitted by the waterproof terminal is reduced.

[0009] Optionally, the male plug is provided with an installation through hole for inserting the cable, and a sealing sleeve is fixedly provided on the outer periphery of the cable. After the cable is inserted into the installation through hole, it is connected to the conductive sheet in the male plug, and the outer side surface of the sealing sleeve is fixedly provided with a plurality of elastic convex rings that are tightly pressed against the inner wall of the installation through hole.

[0010] By adopting the above technical solution, due to the installation arrangement of the sealing sleeve and several elastic convex rings on the sealing sleeve, when the cable is connected to the male plug, the sealing sleeve is fixedly sleeved on the outer periphery of the cable in advance, and then the cable is inserted into the installation through hole, and the end of the cable is connected and fixed to the conductive sheet inside the male plug. At this time, the elastic convex ring is compressed and pressed against the inner wall of the installation through hole, reducing the possibility of rainwater infiltration from the connection between the cable and the male plug, and further improving the waterproof performance of the terminal.

[0011] Optionally, a filling sink is provided on the side of the female socket away from the male plug, a pin penetrating the filling sink is provided on the female socket, and a waterproof layer is provided inside the filling sink.

[0012] By adopting the above technical solution, due to the provision of the waterproof layer, the possibility of rainwater infiltration from the connection between the pin and the female socket is reduced, and the waterproof performance of the terminal is further improved.

[0013] Optionally, a limit ring is fixedly provided on the outer circumference of the plug-in portion close to the male plug, and a lock buckle is detachably provided on the side of the plug-in portion away from the limit ring, and two opposite side surfaces of the sealing ring are respectively pressed against the limit ring and the lock buckle.

[0014] By adopting the above technical solution, due to the matching setting of the limit ring and the lock buckle, when the sealing ring is installed, one side of the sealing ring is tightly pressed against the limit ring, and the other side is tightly pressed against the lock buckle, thereby realizing the installation and fixation of the sealing ring.

[0015] Optionally, the female socket is provided with a plurality of asymmetric fool-proof inserting strips on the inner wall of the plug-in slot, and the lock buckle is provided with fool-proof slots for inserting corresponding fool-proof inserting strips.

[0016] By adopting the above technical solution, due to the matching setting of the anti-foolproof plug and the anti-foolproof slot, when the male plug and the female socket are plugged and fixed, only when the anti-foolproof plug strip is inserted into the corresponding anti-foolproof slot can the male plug and the female socket be correctly plugged in, thereby reducing the possibility of the user plugging the male plug and the female socket in the wrong reverse direction and improving the performance of the waterproof terminal.

[0017] Optionally, a plurality of plug-in blocks are fixedly provided on the side of the plug-in portion away from the limit retaining ring, and a plurality of plug-in interfaces for inserting the plug-in blocks are provided on the lock buckle; a limit hook is fixedly provided on the outer surface of the plug-in block, and a limit groove for inserting the limit hook is provided on the inner wall of the plug-in interface.

[0018] By adopting the above technical solution, when the lock and the plug-in part are installed and fixed, due to the matching setting of the limit hook and the limit slot, the plug-in block is inserted into the corresponding plug-in interface, and at the same time, the limit hook on the plug-in block is inserted into the corresponding limit slot, thereby realizing the assembly and fixation of the lock and the plug-in part, and also improving the assembly efficiency of the lock and the plug-in part.

[0019] Optionally, a buckle point is fixedly provided on the outer side surface of the plug-in block, the buckle point and the limit hook are located on the same side surface of the plug-in block, and the limit hook is located between the limit retaining ring and the buckle point.

[0020] By adopting the above technical solution, when the lock catch and the plug-in part are assembled, due to the setting of the buckle point, the buckle point plays a role of pre-installation, and the buckle point can only be placed inside the limit card slot. At this time, the lock catch and the plug-in part are not completely locked; when an error occurs in the subsequent plugging of the male plug and the female socket, since the lock catch and the plug-in part are not completely locked at this time, it is convenient to separate the lock catch from the male plug, and the male plug can be readjusted in time according to the error that occurs.

[0021] Optionally, the number of the plug-in blocks is not less than three, and the plug-in portion is provided with a recessed groove between adjacent plug-in blocks.

[0022] By adopting the above technical solution, when the plug-in part and the male plug are injection-molded, the possibility of shrinkage and deformation of the male plug and the plug-in part during injection molding is reduced due to the opening of the recessed groove, thereby improving the quality of the male plug and the plug-in part after injection molding.

[0023] Optionally, an anti-foolproof plug block is fixedly provided in one of the yielding grooves in a non-middle position on the plug-in portion, and an anti-foolproof socket for inserting the anti-foolproof plug block is opened on the inner wall of the plug-in interface of the lock buckle.

[0024] By adopting the above technical solution, when the lock buckle and the plug-in part are assembled, due to the matching setting of the anti-foolproof plug block and the anti-foolproof socket, the lock buckle and the plug-in part can only be installed and fixed when the anti-foolproof plug block is inserted into the corresponding anti-foolproof socket, thereby reducing the possibility of reverse insertion when the lock buckle and the plug-in part are installed and fixed.

[0025] Optionally, a baffle for protecting the cardboard is fixedly provided on the male plug, the baffle is located on the side of the cardboard away from the male plug, and an adjustable gap is preset between the baffle and the cardboard.

[0026] By adopting the above technical solution, the rotation range of the card plate is limited, and the connection between the card block and the card plate is protected; the possibility of excessive pressure on the card plate by the user causing damage to it is reduced, and the possibility of external dust or other impurities adhering to the connection between the card block and the card plate is also reduced.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Due to the setting of the sealing ring and the several elastic convex strips on the sealing ring, the possibility of rainwater penetrating into the plugging gap between the male plug and the female socket and thus destroying the signal transmitted by the waterproof terminal is reduced; due to the installation setting of the sealing sleeve and the several elastic convex rings on the sealing sleeve, the possibility of rainwater penetrating from the connection between the cable and the male plug is reduced; due to the setting of the waterproof layer, the possibility of rainwater penetrating from the connection between the pin and the female socket is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0031] Figure 2 It is a schematic diagram of the explosion structure of Example 1 of the present application;

[0032] Figure 3 This is a schematic cross-sectional view of the male plug and the female socket when they are plugged in and matched with each other in Embodiment 1 of the present application;

[0033] Figure 4 It is a cross-sectional structural schematic diagram of the installation and matching of the sealing sleeve in Example 1 of the present application;

[0034] Figure 5 It is a schematic diagram of the exploded structure of the installation distribution of the male plug, the sealing ring and the lock buckle in Example 1 of the present application;

[0035] Figure 6 This is a schematic diagram of the structure of the sealing sleeve installation and matching in Example 1 of the present application;

[0036] Figure 7 This is a schematic diagram of the structure of the limit hook and the limit slot in Example 1 of the present application;

[0037] Figure 8 This is a structural diagram of the installation arrangement of the foolproof plug block according to the first embodiment of the present application;

[0038] Fig. 9 This is a schematic diagram of the structure of the installation distribution arrangement of the foolproof insert strips and the foolproof slots according to the first embodiment of the present application;

[0039] Fig.10 is a schematic cross-sectional view of the structure of the lock buckle when it is completely locked in embodiment 2 of the present application;

[0040] Fig.11 It is a schematic diagram of the cross-sectional structure of Example 2 of the present application when the lock is not completely locked.

[0041] In the figure, 1, female socket; 11, plug-in slot; 111, foolproof plug strip; 12, card block; 13, filling sink groove; 14, waterproof layer; 2, male plug; 21, plug-in part; 211, limit retaining ring; 212, plug-in block; 2121, limit hook; 2122, make way sink groove; 2123, foolproof plug block; 22, card plate; 221, card interface; 23, installation through hole; 24, baffle; 241, adjustment gap; 3, sealing sleeve; 31, elastic convex ring; 4, sealing ring; 41, elastic convex strip; 5, lock buckle; 51, plug-in interface; 511, limit card slot; 512, foolproof socket; 52, foolproof slot; 6, plug pin. DETAILED DESCRIPTION

[0042] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0043] Embodiment 1:

[0044] Reference Figure 1 , Figure 2 and Figure 3 A waterproof terminal comprises a female socket 1 and a male plug 2 connected to a cable, wherein the male plug 2 is fixedly provided with an inserting portion 21, the female socket 1 is provided with an inserting slot 11 for inserting the inserting portion 21, a card block 12 is formed on the outer surface of the female socket 1, a card plate 22 is fixedly provided on the male plug 2, and a card interface 221 is provided on the card plate 22 for the card block 12 to be inserted into a limit position;

[0045] After the plug-in portion 21 of the male plug 2 is inserted into the plug-in slot 11 on the female socket 1, the card plate 22 is inserted into the card interface 221 on the card plate 22. At this time, the card block 12 locks the card plate 22, and the male plug 2 and the female socket 1 are fixedly connected; subsequently, the user can press the card plate 22 to rotate the card plate 22, and then remove the card block 12 from the card interface 221, and the male plug 2 and the female socket 1 can be separated.

[0046] Reference Figure 3 A filling groove 13 is provided on the side of the female socket 1 away from the male plug 2. A plurality of pins 6 are fixedly arranged on the female socket 1 and penetrate the filling groove 13. The filling groove 13 is filled with a waterproof layer 14, and the material of the waterproof layer 14 is specifically waterproof rubber; thereby reducing the possibility of external rainwater penetrating into the connection between the pins 6 and the female socket 1.

[0047] Reference Figure 4 The male plug 2 is provided with a plurality of installation holes 23 for inserting cables (not shown in the figure), and a sealing sleeve 3 is fixedly provided on the outer periphery of the cable. The sealing sleeve 3 is made of rubber, and three elastic convex rings 31 are formed on the outer surface of the sealing sleeve 3 to press against the inner wall of the installation hole 23;

[0048] When the cable is connected to the male plug 2 , the sealing sleeve 3 is pre-mounted on the outer circumference of the cable by means of glue, and then the cable is inserted into the mounting through hole 23 , and the end of the cable is connected and fixed to the conductive sheet inside the male plug 2 .

[0049] Reference Figure 3 and Figure 4 A baffle 24 for protecting the card plate 22 is formed on the male plug 2, and the baffle 24 is located on the side of the card plate 22 away from the male plug 2, and an adjustment gap 241 is preset between the baffle 24 and the card plate 22 for the card plate 22 to be pressed and rotated; due to the installation setting of the baffle 24, the rotation range of the card plate 22 is limited, and the card block 12 and the card plate 22 are protected.

[0050] Reference Figure 5 and Figure 6 A sealing ring 4 is fixedly sleeved on the outer periphery of the plug-in portion 21. The sealing ring 4 is made of rubber, and three elastic convex strips 41 are fixedly wound around the outer periphery of the sealing ring 4. The elastic convex strips 41 and the sealing ring 4 are integrally injection-molded. A limit retaining ring 211 is formed on the outer periphery of the plug-in portion 21 close to the male plug 2, and a lock buckle 5 is detachably installed on the side of the plug-in portion 21 away from the limit retaining ring 211.

[0051] When the sealing ring 4 is installed, the two opposite sides of the sealing ring 4 are respectively pressed against the limit ring 211 and the lock buckle 5; when the male plug 2 and the female socket 1 are plugged in, the elastic convex strip 41 is compressed and connected to the plug groove 11 (see Figure 3 )’s inner wall.

[0052] Reference Figure 5 and Figure 7 A plurality of plug-in blocks 212 are formed on the side of the plug-in portion 21 away from the limit retaining ring 211. The number of the plug-in blocks 212 can be set according to actual needs, and the number of the plug-in blocks 212 is not less than three, and the number is not unique; a plurality of plug-in ports 51 for inserting the plug-in blocks 212 are provided on the lock buckle 5, and the number of the plug-in ports 51 is the same as the number of the plug-in blocks 212;

[0053] A limit hook 2121 is formed on the outer surface of the outermost plug-in block 212, and a limit slot 511 for inserting the limit hook 2121 is opened on the inner wall of the plug-in port 51; when the lock buckle 5 and the plug-in part 21 are installed and fixed, the plug-in block 212 is inserted into the corresponding plug-in port 51, and the limit hook 2121 on the plug-in block 212 is inserted into the corresponding limit slot 511.

[0054] Reference Figure 7 and Figure 8 The plug-in part 21 is provided with a recessed groove 2122 between adjacent plug-in blocks 212. When the plug-in part 21 and the male plug 2 are injection molded, the recessed groove 2122 is reserved to improve the quality of the male plug 2 and the plug-in part 21 after injection molding. A foolproof plug-in block 2123 is molded in one of the recessed grooves 2122 in a non-middle position on the plug-in part 21, and a foolproof socket 512 is provided on the inner wall of the plug-in port 51 of the lock buckle 5 for inserting the foolproof plug-in block 2123; this arrangement reduces the possibility of reverse mis-insertion when the lock buckle 5 and the plug-in part 21 are installed and fixed.

[0055] Reference Fig.10 The female socket 1 is fixedly provided with a plurality of asymmetric fool-proofing strips 111 on the inner wall of the plug-in slot 11. Three of the inner wall of the plug-in slot 11 of the female socket 1 with a larger size can be set, and one or two of the inner wall of the plug-in slot 11 of the female socket 1 with a smaller size can be set, and the specific number is not unique; the lock buckle 5 is provided with a fool-proofing slot 52 for inserting the corresponding fool-proofing strips 111; the problem of reverse and wrong insertion of the male plug 2 and the female socket 1 during insertion is reduced.

[0056] The implementation principle of the embodiment of the present application is:

[0057] Due to the triple sealing arrangement of the waterproof layer 14, the sealing sleeve 3 and the sealing ring 4, when the waterproof terminal is used on a battery vehicle, the possibility of rainwater penetrating into the plugging gap between the male plug 2 and the female socket 1 and thus destroying the signal transmitted by the waterproof terminal is reduced.

[0058] Embodiment 2:

[0059] Reference Fig.10 and Fig.11The difference between the embodiment of the present application and the embodiment 1 is that a buckle point 2124 is formed on the outer surface of the plug-in block 212, and the buckle point 2124 and the limit hook 2121 are on the same side of the plug-in block 212, and the limit hook 2121 is located between the limit retaining ring 211 and the buckle point 2124; when the lock buckle 5 is assembled with the plug-in part 21, the limit hook 2121 and the buckle point 2124 are both located inside the limit slot 511;

[0060] When the lock buckle 5 is assembled with the plug-in part 21, the buckle point 2124 plays a role of pre-installation, and the buckle point 2124 can only be placed inside the limit slot 511. At this time, the lock buckle 5 and the plug-in part 21 are not completely locked; when an error occurs in the subsequent plugging of the male plug 2 and the female socket 1, since the lock buckle 5 and the plug-in part 21 are not completely locked at this time, it is convenient to separate the lock buckle 5 from the male plug 2, and the male plug 2 can be readjusted in time according to the error that occurs.

[0061] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0062] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A waterproof terminal, comprising a female socket (1) and a male plug (2) connected to a cable, wherein the male plug (2) is fixedly provided with an inserting portion (21), the female socket (1) is provided with an inserting slot (11) for the inserting portion (21) to be inserted, a clamping block (12) is fixedly provided on the outer surface of the female socket (1), the male plug (2) is fixedly provided with a clamping plate (22), and the clamping plate (22) is provided with a clamping interface (221) for the clamping block (12) to be clamped into a limited position; It is characterized in that A sealing ring (4) is fixedly sleeved on the outer periphery of the plug-in portion (21), and a plurality of elastic convex strips (41) are fixedly wrapped around the outer periphery of the sealing ring (4); when the male plug (2) and the female socket (1) are plugged in, the elastic convex strips (41) are compressed and pressed against the inner wall of the plug-in groove (11).

2. A waterproof terminal according to claim 1, characterized in that: The male plug (2) is provided with a mounting through hole (23) for inserting a cable, a sealing sleeve (3) is fixedly provided on the outer periphery of the cable, and the cable is connected to the conductive sheet in the male plug (2) after being inserted into the mounting through hole (23), and a plurality of elastic convex rings (31) are fixedly provided on the outer side surface of the sealing sleeve (3) and are tightly pressed against the inner wall of the mounting through hole (23).

3. A waterproof terminal according to claim 1, characterized in that: A filling trough (13) is provided on the side of the female socket (1) away from the male plug (2), a plug pin (6) penetrating the filling trough (13) is provided on the female socket (1), and a waterproof layer (14) is provided inside the filling trough.

4. A waterproof terminal according to claim 1, characterized in that: A limit ring (211) is fixedly provided on the outer periphery of the plug-in portion (21) close to the male plug (2), and a lock buckle (5) is detachably provided on the side of the plug-in portion (21) away from the limit ring (211), and two opposite side surfaces of the sealing ring (4) are respectively tightly pressed against the limit ring (211) and the lock buckle (5).

5. A waterproof terminal according to claim 4, characterized in that: The female socket (1) is provided with a plurality of asymmetric foolproof inserting strips (111) on the inner wall of the inserting slot (11), and the lock buckle (5) is provided with foolproof inserting slots (52) for inserting corresponding foolproof inserting strips (111).

6. A waterproof terminal according to claim 4, characterized in that: A plurality of plug-in blocks (212) are fixedly arranged on the side of the plug-in portion (21) away from the limit stop ring (211), and a plurality of plug-in ports (51) for inserting the plug-in blocks (212) are provided on the lock buckle (5); A limiting hook (2121) is fixedly provided on the outer surface of the plug-in block (212), and a limiting slot (511) for inserting the limiting hook (2121) is provided on the inner wall of the plug-in interface (51).

7. A waterproof terminal according to claim 6, characterized in that: A buckle point (2124) is fixedly arranged on the outer side surface of the plug-in block (212); the buckle point (2124) and the limit hook (2121) are located on the same side surface of the plug-in block (212); and the limit hook (2121) is located between the limit retaining ring (211) and the buckle point (2124).

8. The waterproof terminal according to claim 6, characterized in that: The number of the plug-in blocks (212) is not less than three, and the plug-in portion (21) is provided with a recessed groove (2122) between adjacent plug-in blocks (212).

9. A waterproof terminal according to claim 8, characterized in that: An anti-foolproof plug block (2123) is fixedly arranged in one of the non-middle position yielding recesses (2122) on the plug-in portion (21), and an anti-foolproof socket (512) for inserting the anti-foolproof plug block (2123) is provided on the inner wall of the plug-in interface (51) of the lock buckle (5).

10. The waterproof terminal according to claim 1, characterized in that: The male plug (2) is fixedly provided with a baffle (24) for protecting the card plate (22); the baffle (24) is located on a side of the card plate (22) away from the male plug (2); and an adjustable gap (241) is preset between the baffle (24) and the card plate (22).

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