An electrical connector and an electronic device

Abstract

The present invention provides an electrical connector, which includes a connector body and an inner shell surrounding the connector body. The inner shell includes a stretching portion extending towards one side of the connector body. A hot melt rubber ring is provided on one side of the connector body close to the stretching portion. At least part of the hot melt rubber ring fits the connector body, and one side of the inner shell fits the hot melt rubber ring. In the electrical connector of the present invention, a hot melt rubber ring is provided between the connector body and the inner shell. When the product undergoes SMT patching, the hot melt rubber ring can be melted by the high temperature of this process to fill the gap between the connector body and the inner shell, ensuring the waterproof performance of the product while simplifying the process flow and reducing production costs. At the same time, the gap between the device and the electrical connector is sealed by a waterproof rubber ring to further improve the waterproof performance of the product. The waterproof rubber ring is provided with an installation portion with a harder material and a flexible portion with a softer material, making the installation of the electrical connector more convenient and improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, and particularly to an electrical connector and an electronic device. Background Art

[0002] Due to advantages such as small size and no need to distinguish the insertion direction, Type-C connectors are widely used in various terminal devices for signal transmission and charging. When an electrical connector is applied to products such as electric toothbrushes, certain requirements are imposed on the waterproof performance of the product.

[0003] The electrical connector includes a connector body and an inner shell surrounding the connector body. Since the connector body is injection molded and the inner shell is a rigid member, there will inevitably be a gap between the connector body and the inner shell during assembly.

[0004] In the prior art, it is necessary to apply glue at the tail of the connector body, that is, at the assembly position of the connector body and the inner shell, to fill the gap between the connector body and the inner shell, and after applying glue, it is also necessary to dry the glue application position. The process is relatively complex and the efficiency is low. When performing SMT soldering on the product subsequently, since this process requires high temperature, the glue may remelt and move outside the preset position, affecting the waterproof performance of the product. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an electrical connector and an electronic device, aiming to solve the technical problems in the prior art that it is necessary to apply glue at the tail of the connector body, that is, at the assembly position of the connector body and the inner shell, to fill the gap between the connector body and the inner shell, and after applying glue, it is also necessary to dry the glue application position. The process is relatively complex and the efficiency is low. When performing SMT soldering on the product subsequently, since this process requires high temperature, the glue may remelt and move outside the preset position, affecting the waterproof performance of the product.

[0006] To achieve the above purpose, the present invention is realized by the following technical solutions: An electrical connector includes a connector body and an inner shell surrounding the connector body. The inner shell includes a stretching portion extending towards one side of the connector body. A hot melt adhesive ring is provided on one side of the connector body close to the stretching portion. At least part of the hot melt adhesive ring fits the connector body. The outer wall height of the hot melt adhesive ring is greater than the outer wall height of the connector body on the side close to the stretching portion. One side of the inner shell fits the hot melt adhesive ring.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: By providing a hot melt adhesive ring on one side of the connector body, and a part of the hot melt adhesive ring fits the connector body, and the inner shell fits the hot melt adhesive ring, that is, there is a hot melt adhesive ring between the connector body and the inner shell. When the product is subjected to SMT patching, the hot melt adhesive ring can be melted to form a sol through the high temperature of this process, so that the sol adheres the connector body and the inner shell, and fills the gap between the connector body and the inner shell. When assembling the electrical connector to an electronic device, it can prevent liquid from entering the electronic device through the gap between the connector body and the inner shell from the opening of the inner shell, causing hazards such as short circuits. While ensuring the waterproof performance of the product, there is no need to apply glue at the gap between the connector body and the inner shell and dry it, which relatively simplifies the process flow and reduces production costs.

[0008] According to one aspect of the above technical solution, a receiving groove is formed by inward depression on the outer wall of one side of the connector body, the hot melt adhesive ring is sleeved in the receiving groove, and the stretching part encloses the hot melt adhesive ring.

[0009] According to one aspect of the above technical solution, a protruding part extends outward from the outer wall of one end of the connector body, the side wall of the stretching part fits the protruding part, the hot melt adhesive ring is sleeved on one side of the inner shell, and the side wall of the hot melt adhesive ring fits the protruding part.

[0010] According to one aspect of the above technical solution, the electrical connector further includes a housing that encloses part of the inner shell, a waterproof rubber ring is sleeved on the outer wall of the inner shell on the side away from the stretching part, and the side wall of the waterproof rubber ring fits the side wall of the housing.

[0011] According to one aspect of the above technical solution, the waterproof rubber ring includes an installation part, the inner diameter of the installation part is adapted to the outer diameter of the side of the inner shell away from the stretching part, and the installation part encloses part of the inner shell.

[0012] According to one aspect of the above technical solution, the waterproof rubber ring further includes a flexible part, and the flexible part is formed by outward extension of the outer wall of the installation part.

[0013] According to one aspect of the above technical solution, the hardness of the installation part is greater than the hardness of the flexible part.

[0014] According to one aspect of the above technical solution, the housing includes a first fixing part and a second fixing part, the first fixing part fits the stretching part, the second fixing part fits the side of the inner shell relatively far from the stretching part, and a bridging part is connected between the first fixing part and the second fixing part, and the bridging part fits the inner shell.

[0015] The present invention also provides an electronic device, including the electrical connector in the above technical solution. Description of the Drawings

[0016] Figure 1 Schematic diagram of the structure of the electrical connector in the first embodiment of the present invention;

[0017] Figure 2 Schematic diagram of the structure of the connector body, inner shell and hot melt rubber ring in the first embodiment of the present invention;

[0018] Figure 3 Schematic diagram of the structure of the waterproof rubber ring in the first embodiment of the present invention;

[0019] Figure 4 Schematic diagram of the structure of the outer shell in the first embodiment of the present invention;

[0020] Figure 5 Schematic diagram of the structure of the electrical connector in the second embodiment of the present invention;

[0021] Figure 6 Schematic diagram of the structure of the connector body and inner shell in the second embodiment of the present invention;

[0022] Figure 7 Assembly diagram of the connector body and hot melt rubber ring in the second embodiment of the present invention;

[0023] Description of main component symbols:

[0024] connector body 10 inner shell 20 hot melt rubber ring 30 waterproof rubber ring 40 outer shell 50 protrusion 11 tensile part 21 installation part 41 flexible part 42 second fixing part 51 first fixing part 52 cross-connecting part 53 accommodating groove 12

[0025] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific Embodiments

[0026] For ease of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of this invention herein are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] Please refer to Figures 1 to 4 , which shows an electrical connector in the first embodiment of the present invention, including a connector body 10 and an inner shell 20 surrounding the connector body 10. The inner shell 20 includes a stretching portion 21 extending along one side of the connector body 10. A hot melt adhesive ring 30 is provided on one side of the connector body 10 close to the stretching portion 21. At least part of the hot melt adhesive ring 30 is attached to the connector body 10. The outer wall height of the hot melt adhesive ring 30 is greater than the outer wall height of the connector body 10 on the side close to the stretching portion 21. One side of the inner shell 20 is attached to the hot melt adhesive ring 30.

[0030] By providing the hot melt adhesive ring 30 on one side of the connector body 10, and part of the hot melt adhesive ring 30 being attached to the connector body 10, and the inner shell 20 being attached to the hot melt adhesive ring 30, that is, there is a hot melt adhesive ring 30 between the connector body 10 and the inner shell 20. When the product is subjected to SMT patching, the hot melt adhesive ring 30 can be melted by the high temperature of this process to form an adhesive, which bonds the connector body 10 and the inner shell 20 and fills the gap between the connector body 10 and the inner shell 20, ensuring the waterproof performance of the product while simplifying the process flow and reducing production costs.

[0031] In this embodiment, a protrusion 11 extends outward from the outer wall of one end of the connector body 10. The side wall of the stretching portion 21 is attached to the protrusion 11. The hot melt adhesive ring 30 is sleeved on one side of the inner shell 20, and the side wall of the hot melt adhesive ring 30 is attached to the protrusion 11. Specifically, a protrusion 11 extends from the tail of the connector body 10, and one side of the inner shell 20 is attached to the protrusion 11, that is, the hot melt adhesive ring 30 is sleeved on the inner shell 20, and the side wall of the hot melt adhesive ring 30 is attached to the connector body 10. When performing SMT patching subsequently, the hot melt adhesive ring 30 is melted by high temperature and fills and seals the gap between the connector body 10 and the inner shell 20, improving the waterproof performance of the product and preventing water from flowing into the product interior through the gap between the connector body 10 and the inner shell 20 at the charging port of the device when the product is installed and used in the device, resulting in adverse conditions such as short circuit of the device.

[0032] When the electrical connector is installed on the device, there may be a gap between the installation opening of the device and the electrical connector, and water flow may enter the interior of the product through the gap between the electrical connector and the device installation opening, resulting in adverse conditions such as short circuits of the device. In this embodiment, the electrical connector further includes a housing 50 that encloses part of the inner housing 20. A waterproof rubber ring 40 is sleeved on the outer wall of the side of the inner housing 20 away from the stretching portion 21, and the side wall of the waterproof rubber ring 40 fits against the side wall of the housing 50. A waterproof rubber ring 40 is provided on the side of the inner housing 20 away from the stretching portion 21, that is, close to the above-mentioned installation opening. The gap between the device and the electrical connector is sealed by the waterproof rubber ring 40, further improving the waterproof performance of the product.

[0033] Specifically, the waterproof rubber ring 40 includes an installation portion 41. The inner diameter of the installation portion 41 is adapted to the outer diameter of the side of the inner housing 20 away from the stretching portion 21, and the installation portion 41 encloses part of the inner housing 20.

[0034] For the waterproof rubber rings in the prior art, in order to ensure the sealing performance of the waterproof rubber rings, materials with relatively large elasticity are usually used to make them more easily fit the product. However, when installing a waterproof rubber ring with relatively large elasticity, it needs to be stretched and then sleeved on the inner housing, resulting in low assembly efficiency. In this embodiment, the waterproof rubber ring 40 further includes a flexible portion 42, and the flexible portion 42 is formed by the outer wall of the installation portion 41 extending outward. Further, the hardness of the installation portion 41 is greater than the hardness of the flexible portion 42.

[0035] In this embodiment, by providing the installation portion 41 with a relatively hard material, it is convenient to install the product on the inner housing 20. At the same time, the flexible portion 42 with a relatively soft material is formed on the outer wall of the installation portion 41. That is, while the waterproof rubber ring 40 meets the requirement of fitting the product and ensures the sealing performance, the installation of the electrical connector is more convenient, improving the production efficiency.

[0036] In this embodiment, the waterproof rubber ring 40 can be formed by a two-shot injection molding process in one injection molding.

[0037] In addition, the housing 50 includes a first fixing portion 52 and a second fixing portion 51. The first fixing portion 52 fits against the side of the inner housing 20 close to the hot melt rubber ring 30, and the second fixing portion 51 fits against the side of the inner housing 20 relatively far from the hot melt rubber ring 30. A bridging portion 53 is connected between the first fixing portion 52 and the second fixing portion 51, and the bridging portion 53 fits against the inner housing 20. That is, the shape of the housing 50 generally fits the inner housing 20. On the premise of ensuring the waterproof performance of the product, the size of the product is reduced, which is beneficial to the miniaturization of the product.

[0038] In summary, for the electrical connector in the above embodiments of the present invention, by providing a hot melt adhesive ring 30 on one side of the connector body 10, and a part of the hot melt adhesive ring 30 is attached to the connector body 10, and the inner shell 20 is attached to the hot melt adhesive ring 30, that is, there is a hot melt adhesive ring 30 between the connector body 10 and the inner shell 20. When the product is subjected to SMT soldering, the hot melt adhesive ring 30 can be melted to form a sol through the high temperature of this process, so that the sol bonds the connector body 10 and the inner shell 20 and fills the gap between the connector body 10 and the inner shell 20. When assembling this electrical connector to an electronic device, it can prevent liquid from entering the electronic device through the gap between the connector body 10 and the inner shell 20 from the opening of the inner shell 20, ensuring the waterproof performance of the product while simplifying the process flow and reducing production costs. A waterproof rubber ring 40 is provided on the side of the inner shell 20 away from the stretching portion 21, that is, near the above-mentioned mounting opening. The gap between the device and the electrical connector is sealed by the waterproof rubber ring 40 to further improve the waterproof performance of the product. By providing a relatively hard mounting portion 41, it is convenient to mount the product on the inner shell 20. At the same time, a relatively soft flexible portion 42 is extended on the outer wall of the mounting portion 41, that is, while the waterproof rubber ring 40 meets the requirement of fitting the product and ensures the sealing performance, the installation of this electrical connector is more convenient and the production efficiency is improved.

[0039] Please refer to Figures 5 to 7 , as shown in the electrical connector in the second embodiment of the present invention. The difference between the electrical connector in this embodiment and the electrical connector in the first embodiment is that: a receiving groove 12 is formed by inward depression on the outer wall of one side of the connector body 10, the hot melt adhesive ring 30 is sleeved in the receiving groove 12, and the stretching portion 21 surrounds the hot melt adhesive ring 30. By providing the receiving groove 12 and arranging the hot melt adhesive ring 30 in the receiving groove 12, while meeting the bonding amount during subsequent bonding, it is beneficial to the compactness of the structure of the inner shell 20 and the connector body 10. At the same time, there is no need to provide a protruding portion 11 in contact with the inner shell 20, which is beneficial to the miniaturization of the product.

[0040] For easy understanding, the hot melt adhesive ring 30 of the present invention is provided between the inner shell 20 and the connector body 10. In the first embodiment, the hot melt adhesive ring 30 is sleeved on the outer wall of the inner shell 20, and at the same time, the side wall is attached to the protruding portion 11. In this embodiment, the hot melt adhesive ring 30 is sleeved in the receiving groove 12 opened in the connector body 10, and at the same time, the inner shell 20 surrounds the hot melt adhesive ring 30.

[0041] It can be understood that, for illustration rather than limitation, in other embodiments of the present invention, the hot melt adhesive ring 30 can also be directly sleeved on the connector body 10 and in contact with the inner shell 20, that is, the hot melt adhesive ring 30 can be arranged at different positions according to different models of the product.

[0042] In addition, it should be noted that for other parts not described in this embodiment, reference can be made to the first embodiment, which will not be elaborated here.

[0043] In the third embodiment of the present invention, an electronic device is provided, including the electrical connector in the above embodiment. It should be noted that the electronic device is, for example, a mobile power supply, wireless earphones, an electric shaver, an electric toothbrush, etc.

[0044] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0045] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. An electrical connector, comprising a connector body and an inner shell surrounding the connector body, Characterized in that, The inner shell includes a stretching portion extending towards one side of the connector body. A hot melt adhesive ring is provided on one side of the connector body close to the stretching portion. At least part of the hot melt adhesive ring is attached to the connector body. The outer wall height of the hot melt adhesive ring is greater than the outer wall height of the connector body on the side close to the stretching portion. One side of the inner shell is attached to the hot melt adhesive ring. An accommodation groove is formed by inward depression of the outer wall on one side of the connector body. The hot melt adhesive ring is sleeved in the accommodation groove. The stretching portion encloses the hot melt adhesive ring. A protrusion extends outwards from the outer wall at one end of the connector body. The side wall of the stretching portion is attached to the protrusion. The hot melt adhesive ring is sleeved on one side of the inner shell, and the side wall of the hot melt adhesive ring is attached to the protrusion.

2. The electrical connector according to claim 1, Characterized in that, The electrical connector further includes an outer shell surrounding part of the inner shell. A waterproof rubber ring is sleeved on the outer wall of the inner shell away from the stretching portion. The side wall of the waterproof rubber ring is attached to the side wall of the outer shell.

3. The electrical connector according to claim 2, Characterized in that, The waterproof rubber ring includes an installation portion. The inner diameter of the installation portion is adapted to the outer diameter of the inner shell away from the stretching portion, and the installation portion encloses part of the inner shell.

4. The electrical connector according to claim 3, Characterized in that, The waterproof rubber ring further includes a flexible portion. The flexible portion is formed by outward extension of the outer wall of the installation portion.

5. The electrical connector according to claim 4, Characterized in that, The hardness of the installation portion is greater than the hardness of the flexible portion.

6. The electrical connector according to claim 2, Characterized in that, The outer shell includes a first fixing portion and a second fixing portion. The first fixing portion is attached to the stretching portion. The second fixing portion is attached to the side of the inner shell relatively far from the stretching portion. A bridging portion is connected between the first fixing portion and the second fixing portion. The bridging portion is attached to the inner shell.

7. An electronic device, Characterized in that, It includes the electrical connector according to any one of claims 1-6.

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