Connecting plug with anti-interference function and electronic equipment
By using a metal conductive shell in the connector to reflect electromagnetic interference and using an electrical conductive component to generate a reverse magnetic field to cancel the interference, the influence of electromagnetic fields on signal transmission is solved, resulting in more stable signal transmission and reduced production costs.
Patent Information
- Application Number
- CN202520064405.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing connectors are susceptible to electromagnetic interference in strong electromagnetic fields, which leads to a decrease in signal transmission quality.
The design employs a metal conductive shell and an electrical conductive component. The metal conductive shell reflects electromagnetic interference, while the electrical conductive component induces current to generate a reverse magnetic field to cancel out external electromagnetic interference. This is combined with a plastic inner core and a flexible metal conductive component to reduce costs and improve stability.
The interference resistance of the connector has been improved, the signal transmission is more stable, the production cost has been reduced, and the installation stability has been enhanced.
Smart Images

Figure CN223729147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic device connector technology, and more specifically, to a connector plug with anti-interference function and an electronic device. Background Technology
[0002] Connectors are primarily used to electrically connect two or more devices to achieve signal or circuit connectivity. Connectors consist of a male plug and a female socket; currently, both the male and female plugs, except for the conductive inner core, are injection-molded from plastic. External magnetic fields often exist around the devices, affecting the signal transmission of the connector. Since plastic shielding is relatively poor, the connector is susceptible to electromagnetic interference in strong electromagnetic fields, leading to interference with signal transmission and a deterioration in signal quality. Utility Model Content
[0003] To address at least one of the aforementioned problems, this utility model provides a connector with anti-interference functionality, comprising a connector core, a metal conductive shell, and an electrical conductive element. The connector core is inserted into and connected to the metal conductive shell. The metal conductive shell is adapted to connect to an electronic device, and the connector core is adapted to be electrically connected to the internal circuitry of the electronic device. The electrical conductive element is connected to either the connector core or the metal conductive shell, and both the connector core and the metal conductive shell are in contact with the electrical conductive element. The current in the connector core is transmitted to the metal conductive shell through the electrical conductive element.
[0004] Optionally, the connector with anti-interference function further includes a plastic inner core, which is inserted into the metal conductive shell and fixedly connected to the metal conductive shell. One end of the connector inner core is inserted into the plastic inner core, and the other end protrudes from the plastic inner core and contacts the electrical conductive element.
[0005] Optionally, the connector core is a USB connector, an HDMI connector, a Type-C connector, or an RJ45 connector.
[0006] Optionally, the metal conductive housing is a D-shaped housing or a circular housing.
[0007] Optionally, the electrical conductive element is an elastic metal conductive element, which includes an abutting portion and a bending portion. The abutting portion abuts against the outer wall of the inner core of the connector, and the bending portion abuts against the inner wall of the metal conductive outer shell.
[0008] Optionally, the shape of the bend in the bent portion is adapted to the shape of the inner wall of the metal conductive housing.
[0009] Optionally, an inner wall of the metal conductive shell is provided with a clamping groove matched with the shape of the bending part, and the bending part is inserted into the clamping groove and abuts against the groove bottom of the clamping groove.
[0010] Optionally, one side of the metal conductive shell is filled with glue liquid, the inner core of the connector is fixedly connected with the metal conductive shell through the glue liquid, and the electrically conductive part is located in the glue liquid.
[0011] Optionally, the metal conductive shell is a female plug shell.
[0012] Compared with the prior art, the beneficial technical effects of the utility model are as follows:
[0013] 1. The metal conductive shell can reflect external electromagnetic interference according to the characteristics of metal, reduce the influence of external electromagnetic on the signal transmission in the plug, and make the connection plug have stronger anti-interference ability.
[0014] 2. When signal transmission, the inner core of the connector is in a power-on state, and the voltage of the inner core is small. The metal conductive shell has induced current through the electrically conductive part. When the external electromagnetic field acts on the metal conductive shell, the induced current generates a magnetic field opposite to the external electromagnetic field, thereby offsetting the effect of the external electromagnetic field, making the signal transmission more stable, and further improving the anti-interference performance of the connection plug.
[0015] 3. The setting of the plastic inner core reduces the amount of the metal conductive shell and reduces the production cost. In addition, the electrically conductive part is an elastic metal conductive part instead of a semiconductor or other expensive materials, so that the production cost is reduced while ensuring the conductivity of the inner core of the connector and the metal conductive shell.
[0016] 4. The setting of the bending part can be more fitted with the inner wall of the metal conductive shell, and the contact area is larger. At the same time, under the elastic performance of the electrically conductive part, the inner wall of the metal conductive shell is in a continuous abutting state, and the installation is more stable.
[0017] 5. After the bending part is clamped into the clamping groove, it is not easy to come off from the clamping groove. Then when the inner core of the connector and the metal conductive shell are glued together, the entire electrically conductive part will be completely located in the glue liquid. After the glue liquid solidifies, the electrically conductive part is fixed with the inner core of the connector and the metal conductive shell, further improving the stability of the electrically conductive part after installation.
[0018] In addition, the utility model provides an electronic equipment which comprises the connection plug with anti-interference function.
[0019] Compared with the prior art, the electronic equipment and the connection plug with anti-interference function have the same advantages as the prior art, and details are not repeated here. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the overall structural diagram of the connecting plug in the embodiment of the utility model;
[0021] Figure 2 It is the explosion view of the joint inner core, the metal conductive shell and the electrically conductive piece in the embodiment of the utility model;
[0022] Figure 3 It is the structure view of the joint inner core being the Type-C joint in the embodiment of the utility model;
[0023] Figure 4 It is the structure view of the joint inner core being the USB joint in the embodiment of the utility model;
[0024] Figure 5 It is the structure of the metal conductive shell being the circular shell in the embodiment of the utility model.
[0025] Mark explanation: 1, joint inner core; 2, metal conductive shell; 21, flanging; 22, clamping groove; 3, electrically conductive piece; 31, abutting portion; 32, bending portion; 4, plastic inner core. Specific implementation
[0026] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the drawings.
[0027] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "upper", "lower" and the like is based on the orientation or position relationship when the product is normally used.
[0028] The following will be combined with the drawings Figures 1-5 The application is further described in detail.
[0029] In the first aspect, the utility model embodiment provides a connecting plug with anti-interference function, referring to Figure 1 With Figure 2 The connecting plug with anti-interference function includes joint inner core 1, metal conductive shell 2, electrically conductive piece 3 and plastic inner core 4. One end of joint inner core 1 is inserted into plastic inner core 4 and integrally formed with plastic inner core 4, and plastic inner core 4 is inserted into metal conductive shell 2 and fixedly connected with metal conductive shell 2. Metal conductive shell 2 is suitable for being connected with electronic equipment, joint inner core 1 is suitable for being electrically connected with circuit system inside electronic equipment, joint inner core 1 and metal conductive shell 2 are both in contact with electrically conductive piece 3, and the current of joint inner core 1 is transmitted to metal conductive shell 2 through electrically conductive piece 3, so that metal conductive shell 2 generates magnetic field and plays the role of resisting external interference.
[0030] The inner core 1 of the connector is a double-end inner core, that is, the inner core 1 has two symmetrical interfaces, when connected, the internal lines of the equipment can be directly plugged with the corresponding plug to one interface of the inner core 1, and another device or connector can be plugged with the corresponding plug to the other interface, thereby improving the convenience of connecting the plug with the internal lines of the device.
[0031] With reference to Figure 1 With reference to Figure 2 Correspondingly, one interface of the inner core 1 is inserted into the plastic inner core 4, and the other interface protrudes from the metal conductive shell 2 and is suspended for connection with the internal lines of the device. The outer wall of the plastic inner core 4 is integrally formed with a positioning strip, when the connector is connected to the plastic inner core 4, the positioning strip plays a role of positioning the connection, so that the inner core 1 can be precisely connected to the connector, thereby improving the convenience of connection. In other embodiments, two or more positioning strips can be provided, and when two or more positioning strips are provided, the positioning strips are arranged in a circumferential interval on the outer wall of the plastic inner core 4.
[0032] In another embodiment, the plastic inner core 4 can not be provided, and the inner core 1 is directly inserted into the metal conductive shell 2, but such a design requires more material of the metal conductive shell 2, and the cost is higher.
[0033] With reference to Figure 2 With reference to Figure 3 With reference to Figure 4 In this embodiment, the inner core 1 of the connector is preferably an HDMI connector, and in other embodiments, the inner core 1 can also be any one of a USB connector, a Type-C connector, and an RJ45 connector, which is determined according to actual production conditions and requirements.
[0034] With reference to Figure 1 With reference to Figure 5 In this embodiment, the metal conductive shell 2 is preferably a female plug shell mounted on the device, and the metal conductive shell 2 is a cylindrical shell with open ends. The metal conductive shell 2 can be a D-shaped shell or a circular shell, and both the D-shaped shell and the circular shell are well-known and special terms in the industry.
[0035] If the metal conductive shell 2 is a D-shaped shell, then the metal conductive shell 2 is provided with a flange 21 outwardly extending from the end of the metal conductive shell 2 away from the joint inner core 1, the flange 21 is integrally formed with the metal conductive shell 2, and the flange 21 is provided with a bolt hole penetrating through the flange 21, so that when the D-shaped shell is installed on the equipment, the bolt can pass through the bolt hole on the flange 21 and be threadedly connected to the equipment. If the metal conductive shell 2 is a circular shell, then the metal conductive shell 2 is provided with a flange 21 but not provided with a bolt hole, but is provided with a thread on the outer wall of the metal conductive shell 2, and is installed by cooperating with a nut. In another embodiment, the flange 21 of the circular shell can also be provided with a bolt hole, so that it is connected to the equipment by a bolt. The metal conductive shell 2 of the embodiment is preferably a D-shaped shell.
[0036] Referring to Figure 1 With Figure 2 The end of the joint inner core 1 extending out of the metal conductive shell 2 is located at the end of the metal conductive shell 2 away from the flange 21. The plastic inner core 4 is completely inserted into the metal conductive shell 2, and the end of the plastic inner core 4 away from the flange 21 is spaced apart from the end of the metal conductive shell 2 away from the flange 21 by a certain distance, which is defined as an installation cavity. The electrical conduction piece 3 is placed and installed in the installation cavity, so that the electrical conduction piece 3 can contact the joint inner core 4 protruding from the end of the plastic inner core 4 and the metal conductive shell 2 to realize current conduction, and also makes the electrical conduction piece 3 easy to install.
[0037] In other embodiments, the electrical conduction piece 3 can be fixedly installed on the joint inner core 1 or the metal conductive shell 2.
[0038] Referring to Figure 1 With Figure 2 In this embodiment, the electrical conduction piece 3 is a flexible metal conductive piece, and the electrical conduction piece 3 includes an abutting portion 31 and a bent portion 32. The bent portion 32 is formed by bending, so that after installation, the abutting portion 31 is tightly abutted against the outer wall of the joint inner core 1, and the bent portion 32 is tightly abutted against part of the inner wall of the metal conductive shell 2. The shape of the bent portion 32 is adapted to the shape of the inner wall of the metal conductive shell 2. In this embodiment, the hole in the metal conductive shell 2 is a circular hole, and the corresponding bent portion 32 is an arc-shaped bent shape that is fitted to the inner wall of the metal conductive shell 2. In this way, the contact area between the bent portion 32 and the metal conductive shell 2 is increased, thereby ensuring the stability of the electrical conduction between the joint inner core and the metal conductive shell 2. In other embodiments, the shape of the hole in the metal conductive shell 2 can also be a square hole, and the shape of the bent portion 32 is adapted to the shape of the square hole. The specific shape of the bent portion 32 is determined according to the shape of the hole in the metal conductive shell 2.
[0039] Further, the inner wall at the installation cavity of the metal conductive shell 2 is provided with a clamping groove 22 matched with the shape of the bending part 32, the bending part 32 is inserted into the clamping groove 22 and abuts against the groove bottom of the clamping groove 22, so that the bending part 32 is not easy to be separated from the metal conductive shell 2, and the stability of the electrically conductive part 3 after installation is improved.
[0040] In addition, after the electrically conductive part 3 is installed, glue solution is injected into the installation cavity, and the electrically conductive part 3 is located in the glue solution, and after the glue solution solidifies, the metal conductive shell 2, the butt joint inner core and the electrically conductive part 3 are fixedly connected.
[0041] The implementation principle of the connection plug with the anti-interference function in the embodiment of the application is that the metal conductive shell 2 can reflect and absorb external electromagnetic interference according to the characteristics of the metal, reduces the influence of external electromagnetic on the signal transmission in the plug, and makes the connection plug have stronger anti-interference ability. When the signal is transmitted, the joint inner core 1 is in a power-on state, and the voltage of the joint inner core 1 is small, the metal conductive shell 2 has an induced current through the electrically conductive part 3, when the external electromagnetic field acts on the metal conductive shell 2, the induced current generates a magnetic field opposite to the external electromagnetic field, thereby offsetting the effect of the external electromagnetic field, and making the signal transmission more stable.
[0042] The bending part can be more matched with the inner wall of the metal conductive shell 2, has a larger contact area, and can be in a continuously abutting state with the inner wall of the metal conductive shell 2 under the elastic property of the electrically conductive part 3, and the bending part is not easy to be separated from the clamping groove 22 after being clamped into the clamping groove 22, and is more stable after installation.
[0043] In the second aspect, the utility model provides a kind of electronic equipment, and electronic equipment is installed with the connection plug with the anti-interference function of the first aspect, so that the electronic equipment has better anti-external interference performance, and signal transmission is more stable.
[0044] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited to this. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the utility model.
Claims
1. A connection plug having an anti-interference function, characterized by: The connector comprises a connector inner core (1), a metal conductive shell (2) and an electrically conductive part (3), the connector inner core (1) is inserted into the metal conductive shell (2) and connected with the metal conductive shell (2), the metal conductive shell (2) is adapted to be connected with an electronic device, the connector inner core (1) is adapted to be electrically connected with a circuit system inside the electronic device, the electrically conductive part (3) is connected with the connector inner core (1) or the metal conductive shell (2), the connector inner core (1) and the metal conductive shell (2) are in contact with the electrically conductive part (3), and the current of the connector inner core (1) is transmitted to the metal conductive shell (2) through the electrically conductive part (3).
2. The connection plug with anti-interference function according to claim 1, characterized in that: The connector further comprises a plastic inner core (4), the plastic inner core (4) is inserted into the metal conductive shell (2) and fixedly connected with the metal conductive shell (2), one end of the connector inner core (1) is inserted into the plastic inner core (4), and the other end of the connector inner core (1) protrudes from the plastic inner core (4) and is in contact with the electrically conductive part (3).
3. The connection plug with anti-interference function according to claim 1, characterized in that: The connector inner core (1) is a USB connector, an HDMI connector, a Type-C connector or an RJ45 connector.
4. The connection plug with anti-interference function according to claim 1, characterized in that: The metal conductive shell (2) is a D-shaped shell or a circular shell.
5. The connection plug with anti-interference function according to any one of claims 1-4, characterized in that: The electrically conductive part (3) is an elastic metal conductive part, the electrically conductive part (3) comprises an abutting part (31) and a bent part (32), the abutting part (31) is in abutting contact with the outer wall of the connector inner core (1), and the bent part (32) is in abutting contact with part of the inner wall of the metal conductive shell (2).
6. The connection plug with anti-interference function according to claim 5, characterized in that: The shape of the bent part (32) is adapted to the shape of the inner wall of the metal conductive shell (2).
7. The connection plug with anti-interference function according to claim 6, characterized in that: The inner wall of the metal conductive shell (2) is provided with a clamping groove (22) which is adapted to the shape of the bent part (32), and the bent part (32) is inserted into the clamping groove (22) and abuts against the groove bottom of the clamping groove (22).
8. The connection plug with anti-interference function according to claim 5, characterized in that: One side of the metal conductive shell (2) is filled with glue liquid, the connector inner core (1) is fixedly connected with the metal conductive shell (2) through the glue liquid, and the electrically conductive part (3) is located in the glue liquid.
9. The connection plug with anti-interference function according to claim 5, characterized in that: The metal conductive shell (2) is a female plug shell, the metal conductive shell (2) is provided with a flange (21) outwardly at one side, and the flange (21) is provided with a bolt hole.
10. An electronic device, comprising: The connector comprises the connecting plug with the anti-interference function according to any one of claims 1-9.