Type-c waterproof structure

Abstract

The utility model discloses a Type-c waterproof structure, which comprises a Type-c joint and a waterproof ring, the rear end of the Type-c joint is provided with a PCB (Printed Circuit Board), the waterproof ring is made of an elastic material (preferably having a certain deformation degree), the waterproof ring comprises a sealing ring wrapping the outer peripheral wall of the Type-c joint and a check ring arranged at the rear end of the sealing ring, the check ring is of a closed-loop-shaped structure, and the Type-c joint is connected with the waterproof ring. The sealing ring and the check ring are integrally formed or combined in a split mode. The preassembling equipment abuts against the waterproof ring, that is, the sealing ring is arranged between the Type-c connector and the preassembling equipment, and the check ring is arranged between the PCB and the preassembling equipment, so that the dual-sealing effect between the preassembling equipment and the Type-c connector is achieved, liquid is prevented from flowing into the Type-c connector from a gap between the preassembling equipment and the Type-c connector, and the sealing performance of the Type-c connector is improved. Wherein the Type-c connector is waterproof, for example, the Type-c connector is waterproof during injection molding, and certainly, in order to achieve further waterproof of the Type-c connector, glue injection waterproof can be conducted after injection molding.

Description

Technical Field

[0001] The utility model relates to the field of Type-c connector waterproofing, and in particular to a Type-c waterproof structure. Background Art

[0002] Type-C is much smaller than Type-A and Type-B. It is the latest USB interface standard. This interface has no difference in positive and negative directions and can be plugged in and out at will. With the requirements for standardized connectors, the requirements for the use of Type-C have also increased.

[0003] However, the waterproof structure of the existing Type-C connector is still the key to the design. When the Type-C female connector is installed on a predetermined device, the waterproofness of the connector is related to the stability of the internal components of the device. However, the existing Type-C waterproof connector, such as Chinese patent CN201910616467.1, has the following problems:

[0004] 1. It adopts a sealing ring structure to achieve waterproofness of the joint. The current market purchase price is RMB 0.8-1.2. Its cost is relatively high, and its waterproof performance can only reach the IPX7 level. The anti-immersion type will not enter the interior even if immersed in water under specified conditions, but for some underwater equipment with higher requirements, it still cannot meet higher waterproof levels;

[0005] 2. Its production process and steps are relatively complicated, and the structural reference and versatility are poor. Especially for the small structure of this product, even if an automated robot is used, the defective rate is still high, affecting production stability. Utility Model Content

[0006] The main purpose of the utility model is to propose a Type-c waterproof structure, aiming to improve the existing Type-c connector waterproof structure, which has a simple structure and low production cost, and effectively improves market competitiveness.

[0007] To achieve the above purpose, the utility model proposes a Type-c waterproof structure, including:

[0008] A Type-c connector, wherein a PCB board is provided at the rear end of the Type-c connector;

[0009] A waterproof ring, wherein the waterproof ring is made of an elastic material (preferably having a certain degree of deformation), and comprises a sealing ring that covers the outer peripheral wall of the Type-c connector and a retaining ring disposed at the rear end of the sealing ring, wherein the retaining ring is a closed-loop structure, and the sealing ring and the retaining ring are integrally formed or separately combined.

[0010] In actual installation, the pre-installed device and the waterproof ring are offset against each other, that is, a sealing ring is provided between the Type-c connector and the pre-installed device, and a retaining ring is provided between the PCB board and the pre-installed device, thereby achieving a double sealing effect between the pre-installed device and the Type-c connector, thereby preventing liquid from flowing into the interior from the gap between the pre-installed device and the Type-c connector, wherein the Type-c connector is inherently waterproof (for example, the Type-c connector is waterproof during injection molding, and of course, in order to achieve further waterproofness of the Type-c connector, it can also be waterproofed by injecting glue after injection molding);

[0011] The Type-c connector uses a conventionally purchased connector, which generally costs between RMB 0.1 and RMB 0.3, while the cost of the sealing ring is less than RMB 0.1. It has a simple structure and low production cost, while ensuring the predetermined waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a half-section schematic diagram of the utility model;

[0013] Figure 2 This is a cross-sectional view of the utility model;

[0014] Figure 3 This is a diagram showing the Type-C connector and waterproof ring.

[0015] Figure 4 This is an exploded view of the utility model;

[0016] Figure 5 It is a three-dimensional schematic diagram of the utility model.

[0017] In the figure,

[0018] 1 is the Type-c connector, 10 is the PCB board,

[0019] 2 is a waterproof ring, 21 is a sealing ring, 22 is a retaining ring,

[0020] 3 is a housing, 30 is a socket, 31 is a surrounding part, 32 is a vertical wall,

[0021] 41 is the first convex eaves, 42 is the second convex eaves,

[0022] 5 is the avoidance position,

[0023] 61 is a positioning column, 62 is a via hole,

[0024] 7 is a sealing plug and 8 is a silicone layer. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0028] like Figures 1 to 5 As shown, a Type-c waterproof structure includes:

[0029] A Type-c connector 1, wherein a PCB board 10 is provided at the rear end of the Type-c connector 1;

[0030] The waterproof ring 2 is made of elastic material (preferably with a certain degree of deformation). The waterproof ring 2 includes a sealing ring 21 that covers the outer peripheral wall of the Type-c connector 1 and a retaining ring 22 arranged at the rear end of the sealing ring 21. The retaining ring 22 is a closed-loop structure. The sealing ring 21 and the retaining ring 22 are integrally formed or separately combined.

[0031] In actual installation, the pre-installed device and the waterproof ring 2 are offset against each other, that is, a sealing ring 21 is provided between the Type-c connector 1 and the pre-installed device, and a retaining ring 22 is provided between the PCB board 10 and the pre-installed device, thereby achieving a double sealing effect between the pre-installed device and the Type-c connector 1, thereby preventing liquid from flowing into the interior from the gap between the pre-installed device and the Type-c connector 1, wherein the Type-c connector 1 is inherently waterproof, for example, the Type-c connector 1 is waterproof during injection molding, and of course, in order to achieve further waterproofing of the Type-c connector 1, it can also be waterproofed by injecting glue after injection molding;

[0032] The Type-c connector 1 adopts a conventionally purchased connector, the cost of which is generally between RMB 0.1 and RMB 0.3, while the cost of the sealing ring 21 is less than RMB 0.1. It has a simple structure and a low production cost, while ensuring the predetermined waterproof effect.

[0033] Specifically, the sealing ring 21 and the retaining ring 22 are integrally injection-molded and then installed on the Type-c connector 1 , or the sealing ring 21 and the retaining ring 22 are injection-molded between the Type-c connector 1 and the PCB board 10 .

[0034] In the actual design, the sealing ring 21 and the retaining ring 22 can be installed between the Type-C connector 1 and the PCB board 10 after being injection molded as separate units, and the waterproof ring 2 is expanded and installed on the connector.

[0035] The sealing ring 21 and the retaining ring 22 can also be directly molded between the Type-c connector 1 and the PCB board 10 by means of an injection molding machine to achieve one-piece molding, thereby reducing subsequent installation steps, but the requirements for the injection molding machine are relatively high.

[0036] In the embodiment of the utility model, it also includes a shell 3, which is provided with a socket 30 for the end of the Type-c connector 1 to extend out, and the inner wall of the shell 3 is provided with a surrounding portion 31, which extends inward along the outer circumference of the socket 30, and a vertical wall 32 is provided between the rear end of the socket 30 and the surrounding portion 31, and the sealing ring 21 is provided between the inner wall of the surrounding portion 31 and the outer peripheral wall of the rear part of the Type-c connector 1, and the front end wall of the sealing ring 21 is against the vertical wall 32.

[0037] The vertical wall 32 and the sealing ring 21 are abutted against each other, thereby preventing liquid from penetrating from the socket 30 into the interior of the housing 3 , thereby achieving the first level of waterproofing of the socket 30 .

[0038] Specifically, the front end wall of the retaining ring 22 abuts against the rear wall of the surrounding portion 31. Thus, the second waterproofing between the housing 3 and the end of the socket 30 is achieved, which effectively improves the waterproofing level. In preliminary tests, the waterproofing effect of IPX8 can be achieved, that is, IPX8 waterproofing means: the highest level of waterproofing standard, the standard is that the top is 1.5-30 meters away from the water surface for 30 consecutive minutes, and the performance is not affected and there is no water leakage. IPX is an internationally certified waterproofing level, and the last digit represents the waterproofing performance. There are 8 levels in total, and IPX8 is the highest level of waterproofing performance.

[0039] Through the coordination among the surrounding part 31, the waterproof ring 2, the Type-c connector 1 and the shell 3, daily waterproof requirements are met.

[0040] In the embodiment of the utility model, the middle part of the front end wall of the sealing ring 21 is provided with a first convex eave 41 or a first groove arranged in a closed loop;

[0041] The front wall or the rear wall of the retaining ring 22 is provided with a second convex protrusion 42 or a second groove, wherein the rear wall is preferred, which can have a larger contact area.

[0042] In the actual design, when the front end of the sealing ring 21 is deformed by pressure accumulation, the gap caused by the non-guided deformation of the sealing ring 21 is avoided. By setting the first convex eaves 41 or the first groove (the second convex eaves 42 or the second groove), the deformation of the sealing ring 21 tends to the predetermined position, thereby ensuring the sealing performance of the waterproof ring 2 after extrusion, that is, having a compression function, and having a free compression and filling function for the slightly uneven places on the contacting surface;

[0043] The first convex eaves and the second convex eaves are sharp structures (such as triangles), and can certainly be set to different shapes according to actual needs.

[0044] There is at least one of the first convex eaves 41 and the first groove (the second convex eaves 42 or the second groove), and of course, there can also be a plurality of structures arranged at intervals, but the volume is smaller, so one is preferred.

[0045] In the embodiment of the utility model, the outer diameter of the retaining ring 22 is greater than the outer diameter of the sealing ring 21, wherein the sealing ring 21 and the retaining ring 22 are imitation structures of Type-c, thereby facilitating installation and production.

[0046] Specifically, an avoidance position 5 is provided between the inner circumferential wall of the retaining ring 22 and the PCB board 10, wherein the avoidance position is used to avoid the solder joints of the PCB board. Of course, in actual design, the avoidance position can also be a groove or a through groove.

[0047] In the embodiment of the utility model, the housing 3 is provided with a positioning column 61, and the PCB board 10 is provided with a through hole 62 matched with the positioning column 61. A screw passes through the through hole and is screwed into the positioning column 61, thereby realizing the locking of the joint as a whole, and the screw generates an extrusion force during the screwing process, thereby realizing the deformation sealing of the waterproof ring 2, which not only facilitates installation, but also further improves the sealing effect;

[0048] Of course, welding can also be used to achieve the fixing effect, but its extrusion effect is not as convenient as that of the screw.

[0049] Specifically, the outer wall of the shell 3 is provided with a sealing plug 7 that is compatible with the female groove structure of the Type-c connector 1, and the sealing plug 7 switches between the position of being inserted into the female groove or withdrawn from the female groove.

[0050] In the embodiment of the utility model, the outer peripheral wall of the shell 3 is coated with a silicone layer 8, and the silicone layer and the shell 3 are bonded together by glue, which further improves the overall sealing of the pre-installed device.

[0051] The pre-installed equipment can be toothbrushes, massagers, shaver interfaces, etc., that is, products that need to be washed with water, but of course they are not limited to the above products. The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A Type-c waterproof structure, characterized in that: include: A Type-c connector, wherein a PCB board is provided at the rear end of the Type-c connector; The waterproof ring is made of elastic material, and includes a sealing ring that covers the outer peripheral wall of the Type-c connector and a retaining ring arranged at the rear end of the sealing ring. The retaining ring is a closed-loop structure, and the sealing ring and the retaining ring are integrally formed or separately combined.

2. The Type-c waterproof structure according to claim 1, characterized in that: The sealing ring and the retaining ring are integrally injection-molded and then installed on the Type-c connector, or the sealing ring and the retaining ring are injection-molded between the Type-c connector and the PCB board.

3. The Type-c waterproof structure according to claim 1, characterized in that: Also includes a housing, The shell is provided with a socket for the end of the Type-c connector to extend out, the inner wall of the shell is provided with a surrounding portion, the surrounding portion extends inwardly along the outer circumference of the socket, a vertical wall is provided between the rear end of the socket and the surrounding portion, and the sealing ring is provided between the inner wall of the surrounding portion and the outer circumferential wall of the rear part of the Type-c connector, The front end wall of the sealing ring abuts against the vertical wall.

4. The Type-c waterproof structure according to claim 3, characterized in that: The front end wall of the retaining ring abuts against the rear wall of the surrounding portion.

5. The Type-c waterproof structure according to claim 4, characterized in that: The middle part of the front end wall of the sealing ring is provided with a first convex eave or a first groove arranged in a closed loop; The front wall or the rear wall of the retaining ring is provided with a second convex eave or a second groove.

6. The Type-c waterproof structure according to claim 1, characterized in that: The outer diameter of the retaining ring is greater than the outer diameter of the sealing ring.

7. The Type-c waterproof structure according to claim 6, characterized in that: An escape position is provided between the inner peripheral wall of the retaining ring and the PCB board.

8. The Type-c waterproof structure according to claim 3, characterized in that: The housing is provided with a positioning column, the PCB board is provided with a through hole matched with the positioning column, and a screw rod passes through the through hole and is screwed into the positioning column.

9. The Type-c waterproof structure according to claim 3, characterized in that: The outer wall of the shell is provided with a sealing plug that is compatible with the female groove structure of the Type-c connector, and the sealing plug switches between the position of being inserted into the female groove or withdrawn from the female groove.

10. The Type-c waterproof structure according to claim 3, characterized in that: The outer peripheral wall of the shell is coated with a silica gel layer, and the silica gel layer and the shell are bonded together by glue.

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