Electrical connector
By setting a material resisting ring at the electrically conductive sleeve plug-in hole of the electrical connector, the injection of insulating material in the glue wrapping process is solved, and the problem of injection of glue affects assembly and conduction is achieved, and the stability of the electrical connector is achieved Assembly and reduce production costs.
Patent Information
- Application Number
- CN201811373948.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-11-19
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2038-11-19
AI Technical Summary
In the glue wrapping process of the electrical connector, the glue is easily injected into the mating part of the electrical connector, affecting later assembly and electrical conduction.
A material resisting ring is provided at the plug-in hole of the conductive sleeve to prevent the insulating material from being shot into the mating part of the conductive sleeve, thereby forming a sealing shell in the glue-encapsulating injection molding process to prevent the insulating material from entering the conductive sleeve.
It ensures the later assembly and electrical connection of the conductive sleeve with the pin, and reduces the production scrap rate and cost.
Smart Images
Figure CN109861023B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electrical connectors, and in particular to an electrical connector structure. Background Art
[0002] In recent years, electrical connectors have been widely used in various electrical circuits to connect or disconnect circuits. In the manufacturing process of electrical connectors, a process is often required: a rubber shell is formed on the surface through the rubber injection molding process to play an electrical insulation role. However, during the rubber injection process, due to excessive injection pressure, the rubber is easy to be injected into the mating part of the electrical connector, which has a great impact on the later assembly and electrical conduction of the electrical connector. Summary of the invention
[0003] The purpose of the present invention is to provide an electrical connector, aiming to solve the problem in the prior art that during the encapsulation process of the electrical connector, the adhesive is easily injected into the mating part of the electrical connector, affecting the subsequent assembly and electrical conduction of the electrical connector.
[0004] In order to solve the above technical problems, the technical solution of the present invention is: an electrical connector, comprising:
[0005] The conductive sleeve is made of a conductive material and includes a plug-in portion for electrically connecting to the plug pin and a wiring portion for electrically connecting to the conductive cable. One end of the plug-in portion is provided with a plug-in hole for plugging with the plug pin to achieve electrical connection with the plug pin, and the other end of the plug-in portion is electrically connected to the wiring portion.
[0006] The rubber-encapsulated shell is made of an insulating material and includes a shell body and an anti-dropping clamp ring. The shell body is provided with a plug receiving hole for receiving the plug-in portion on one side thereof, and a wiring receiving hole connected to the plug receiving hole and used to receive the wiring portion and for electrically connecting a conductive cable to the wiring portion is provided on the other side thereof. The anti-dropping clamp ring is formed by extending inwardly from the hole of the plug receiving hole to limit the conductive sleeve from being separated from the plug receiving hole.
[0007] The material blocking ring is arranged in the insert receiving hole and is located between the anti-dropping clamp ring and the inserting portion. The inner ring diameter of the material blocking ring is smaller than the hole diameter of the inserting hole.
[0008] Furthermore, the electrical connector further comprises a positioning ring for positioning and connecting the resistance ring to the plug-in portion, and the positioning ring is formed by vertically extending outward from an outer ring edge of the resistance ring.
[0009] Furthermore, the plug-in part includes a plug-in section and a plug-in limiting section used for limiting sleeve engagement with the positioning ring, the outer diameter of the plug-in limiting section is adapted to the inner diameter of the positioning ring, and the outer diameter of the plug-in section is greater than or equal to the outer diameter of the positioning ring.
[0010] Furthermore, the opening direction of the plug receiving hole is arranged perpendicularly to the opening direction of the wiring receiving hole.
[0011] Furthermore, the wiring portion is provided with an external thread structure on its circumference.
[0012] Furthermore, the rubber-coated shell also includes a connecting portion for fixedly connecting the electrical connector, and the connecting portion is formed by extending outward from a side of the shell body where the wiring receiving hole is opened.
[0013] Furthermore, the connecting portion is provided with an external thread structure on its circumference.
[0014] Furthermore, the electrical connector also includes a contact piece for electrically connecting to the plug pin, the contact piece is made of a conductive material, and the contact piece is arranged in the plug hole.
[0015] Furthermore, the contact member is a rotary spring.
[0016] Furthermore, the rubber-coated shell also includes a positioning member for positioning the electrical connector, and the positioning member is arranged on the outside of the shell body.
[0017] Beneficial effects of the present invention:
[0018] The electrical connector provided by the present invention provides a material blocking ring at the plug-in hole of the conductive sleeve to prevent the insulating material from being injected into the mating part of the conductive sleeve in the subsequent process of forming a rubber-coated shell on the surface of the conductive sleeve through the rubber-coated injection molding process, thereby ensuring that the later assembly and electrical connection between the conductive sleeve and the plug pin will not be affected by the insulating material, and to a certain extent, reducing the production scrap rate and production cost of the electrical connector. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic diagram of the three-dimensional structure of an electrical connector provided by an embodiment of the present invention;
[0020] Figure 2 is a top view of an electrical connector provided by an embodiment of the present invention;
[0021] Figure 3 yes Figure 2 AA cross-sectional structural schematic diagram of the electrical connector shown;
[0022] Reference numerals:
[0023] Label name Label name 11 Conductive sleeve 111 Connector 112 Connection 12 Rubber shell 121 Shell body 122 Anti-drop ring 13 Blocking ring 14 Locating ring 1111 Plug-in section 1112 Plug-in limit section 123 Connection 15 Contacts 124 Positioning parts DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.
[0026] It should also be noted that the directional terms such as left, right, up, and down in this embodiment are merely relative concepts or are based on the normal use status of the product and should not be considered as restrictive.
[0027] See also Figure 1-3 The embodiment of the present invention provides an electrical connector, which includes a conductive sleeve 11, a rubber-coated shell 12 and a blocking ring 13. It should be noted that the electrical connector provided by the embodiment of the present invention can be mainly applied to, but not limited to, the electrical connector of new energy electric vehicles to assist in establishing a stable electrical connection relationship between components with the male electrical connector.
[0028] The conductive sleeve 11 is made of conductive material, and includes a plug-in portion 111 for electrically connecting to a plug pin and a wiring portion 112 for electrically connecting to a conductive cable. One end of the plug-in portion 111 is provided with a plug hole for plugging with the plug pin to achieve electrical connection with the plug pin, and the other end of the plug-in portion 111 is electrically connected to the wiring portion 112. It should be noted that the conductive sleeve 11 can be machined using a copper alloy material with good conductive properties. By plugging the plug-in portion 111 of the conductive sleeve 11 with the plug pin, the conductive property of the conductive material can be used to connect the current from the plug pin through the plug-in portion 111 to the wiring portion 112, and then transmit it out through the conductive cable electrically connected to the wiring portion 112.
[0029] The rubber-coated shell 12 is made of insulating material, including a shell body 121 and an anti-slip clamp 122. The shell body 121 is provided with a plug receiving hole for accommodating the plug-in portion 111 on one side thereof, and a wiring receiving hole connected to the plug receiving hole and used to accommodate the wiring portion 112 and for electrically connecting the conductive cable to the wiring portion 112 is provided on the other side thereof. The anti-slip clamp 122 is formed by extending inward from the hole of the plug receiving hole to limit the conductive sleeve 11 from being separated from the plug receiving hole. It should be noted that in order to avoid leakage between electrical connectors, the electrical connector usually needs to form a layer of insulating shell on its surface. For this purpose, the traditional method is to use a rubber-coated injection molding process to wrap the outside of the conductive sleeve 11 to form an insulating shell to play the role of mutual electrical insulation and sealing protection, thereby improving the high temperature resistance, low temperature resistance, flame retardancy and other environmental resistance properties of the electrical connector. Therefore, the rubber-coated shell 12 can be formed by rubber-coated injection molding of thermosetting plastic. Through mold design, the rubber-coated shell 12 is integrally formed to form a shell body 121 for accommodating the conductive sleeve 11, and an anti-dropping clamp ring 122 is formed to limit the conductive sleeve 11 from being separated from the plug receiving hole. It should be noted that the inner diameter of the anti-dropping clamp ring 122 is smaller than the inner diameter of the conductive sleeve 11. It should also be noted that the opening direction of the plug receiving hole and the opening direction of the wiring receiving hole can be designed at any angle, which can be specifically designed according to the actual application situation.
[0030] The material blocking ring 13 is arranged in the plug receiving hole and is located between the anti-dropping clamp ring 122 and the plug-in portion 111. The inner ring diameter of the material blocking ring 13 is smaller than the aperture of the plug-in hole. It should be noted here that the function of the material blocking ring 13 is to block the insulating material from being injected into the matching part of the conductive sleeve 11 when forming the rubber-coated shell 12. Therefore, the size of the inner diameter ring of the material blocking ring 13 is smaller than the aperture of the plug-in hole. In this way, when the rubber-coated shell 12 is formed by the rubber-coated injection molding process, the material blocking ring 13 can block the insulating material that is easy to be injected into the matching part of the conductive sleeve 11 due to excessive injection pressure. Specifically, in the production process, the material blocking ring 13 is first placed close to and connected to the plug-in hole of the conductive sleeve 11, and then the material blocking ring 13 and the conductive sleeve 11 are placed in a mold together with the conductive sleeve 11 to form the rubber-coated shell 12 by the rubber-coated injection molding process, so as to prevent the insulating material from being injected into the matching part of the conductive sleeve 11 due to the effect of the injection pressure. If the insulating material enters the mating part of the conductive sleeve 11, the conductive performance of the conductive sleeve 11 will be greatly affected due to the insulating effect of the insulating material, and the electrical connection with the pin cannot be achieved, which will have a great impact on the subsequent assembly and conduction. The material blocking ring 13 can effectively prevent the insulating material from entering the conductive sleeve 11, thereby reducing the production scrap rate and production cost to a certain extent.
[0031] The embodiment of the present invention provides a material blocking ring 13 at the plug-in hole of the conductive sleeve 11 to prevent the insulating material from being injected into the mating part of the conductive sleeve 11 in the subsequent process of forming the rubber-coated shell 12 on the surface of the conductive sleeve 11 through the rubber-coated injection molding process, thereby ensuring that the subsequent assembly and electrical connection between the conductive sleeve 11 and the plug pin will not be affected by the insulating material, and to a certain extent, reducing the production scrap rate and production cost of the electrical connector.
[0032] See also Figure 3 In this embodiment, the electrical connector further includes a positioning ring 14 for positioning and connecting the blocking ring 13 to the plug-in portion 111, and the positioning ring 14 is formed by vertically extending outward from the outer ring edge of the blocking ring 13. In order to facilitate the fixation of the blocking ring 13, the outer ring edge of the blocking ring 13 is extended in a vertical direction to form the positioning ring 14, and the combined shape of the blocking ring 13 and the positioning ring 14 is similar to a right-angle copper cap. It should be noted here that the material of the blocking ring 13 is not limited in any way, and any material that can meet the strength and stiffness requirements of the injection pressure and injection temperature of the overmolding process is within the selectable range of this embodiment.
[0033] See also Figure 3 In this embodiment, the plug-in portion 111 includes a plug-in portion plug-in section 1111 and a plug-in portion limiting section 1112 for limiting sleeve engagement with the positioning ring 14. The outer diameter of the plug-in portion limiting section 1112 matches the inner diameter of the positioning ring 14, and the outer diameter of the plug-in portion plug-in section 1111 is not less than the outer diameter of the positioning ring 14. In order to connect with the blocking ring 13, the plug-in portion 111 of the conductive sleeve 11 can be divided into two parts, one of which forms a plug-in portion limiting section 1112 for limiting sleeve engagement with the positioning ring 14, and a boss for limiting connection to the positioning ring 14 is formed by the difference between the outer diameter of the plug-in portion limiting section 1112 and the outer diameter of the plug-in portion plug-in section 1111. Specifically, the outer diameter of the plug-in portion limiting section 1112 matches the inner diameter of the positioning ring 14, and the outer diameter of the plug-in portion plug-in section 1111 can be greater than or equal to the outer diameter of the positioning ring 14.
[0034] By setting the positioning ring 14 and the plug-in limiting section 1112, the connection relationship between the blocking ring 13 and the conductive sleeve 11 becomes more stable, avoiding the problem of being unable to effectively block the insulating material from entering the conductive sleeve 11 due to the possible deviation of the blocking ring 13.
[0035] See also Figure 3In this embodiment, the opening direction of the plug receiving hole is perpendicular to the opening direction of the wiring receiving hole. Since the space occupied by the electrical connector that transmits current in a straight line is relatively large, in actual use, in order to compress the space occupied by components as much as possible, the current transmission direction of the electrical connector can be set vertically. In this embodiment, a scheme is provided for setting the current transmission direction of the electrical connector vertically, by setting the opening direction of the plug receiving hole vertically to the opening direction of the wiring receiving hole, and designing a corresponding mold for the setting to form a corresponding rubber-coated shell 12, so that the plug-in direction of the plug-in pin and the plug-in hole of the conductive sleeve 11, and the electrical connection direction of the conductive cable and the wiring portion 112 are vertically arranged, so that the space occupied by components can be greatly compressed.
[0036] See also Figure 3 In this embodiment, the wiring portion 112 is provided with an external thread structure on its circumference. Providing the external thread structure on the circumference of the wiring portion 112 helps to wrap the conductive cable around the external thread structure of the wiring portion 112, which helps to improve the stability of the electrical connection between the conductive cable and the wiring portion 112.
[0037] See also Figure 3 In this embodiment, the rubber-coated shell 12 further includes a connection portion 123 for fixing and connecting the electrical connector, and the connection portion 123 is formed by extending outward from one side of the shell body 121 where the wiring receiving hole is provided. It should be noted that, in order to facilitate the fixing and disassembly of the electrical connector body, when the rubber-coated shell 12 is formed by the rubber-coated injection molding process, a connection portion 123 for fixing and connecting the electrical connector can be integrally formed, and the connection portion 123 is arranged on the outside of the wiring receiving hole, so that after the conductive cable is electrically connected to the wiring portion 112, the electrical connector can be fixed at a predetermined position.
[0038] See also Figure 3 In this embodiment, the connection part 123 is provided with an external thread structure on its circumference. Providing an external thread structure on the circumference of the connection part 123 facilitates the detachable connection of the electrical connector. It should be noted that since the connection part 123 is integrally formed with the rubber-encapsulated housing 12, in order to ensure the strength of the connection part 123, when designing, a thermosetting plastic with stronger molding strength should be selected according to the simulation analysis of its use scenario, or its strength can be enhanced by increasing its density.
[0039] See also Figure 3In this embodiment, the electrical connector further includes a contact 15 for electrically connecting with the plug pin. The contact 15 is made of a conductive material and is disposed in the plug hole. It should be noted that the contact 15 is mostly machined from an elastic copper alloy material with good conductive properties, and its surface can be silver-plated or gold-plated to reduce contact resistance and prevent corrosion. Commonly used contact 15 types are mostly split-slot contact, wire spring contact, crown spring contact, and punched contact. By arranging the contact 15 in the plug hole of the conductive sleeve 11, the stability of establishing an electrical connection with the plug pin can be enhanced. The specific reason is that when an electrical connection needs to be established, the plug pin is inserted into the contact 15, and the contact 15 can be appropriately deformed according to the extrusion force it bears, so that the contact area between the contact 15 and the plug pin is larger and tighter. Through the continuous contact between the contact 15 and the surface of the plug pin, the conductivity of the material processed by the contact 15 itself can be used for conduction, thereby establishing a stable electrical connection.
[0040] See also Figure 3 In this embodiment, the contact 15 is a rotary spring. It should be noted that the rotary spring contact 15 includes a front retaining ring and a rear retaining ring, and a plurality of grid springs are connected between the front retaining ring and the rear retaining ring. The grid springs are twisted into a spiral shape around the central axis of the rotary spring contact 15. The special structural setting of the rotary spring enables the contact 15 to have a high contact area when mated with the pin, and its axial contact range is also longer than other types of contacts. It is compact and reliable, and can carry higher currents and electrical signals. The plug-in and pull-out force and retention force are also relatively stable. In addition, its production cost is not high, which is conducive to large-scale production.
[0041] See also Figure 3 In this embodiment, the rubber-coated shell 12 further includes a positioning member 124 for positioning the electrical connector, and the positioning member 124 is arranged outside the shell body 121. By providing a positioning member 124 outside the shell body 121 of the rubber-coated shell 12, it is helpful to locate the fixed position of the electrical connector when it is fixedly connected later.
[0042] The electrical connector provided by the present invention provides a material blocking ring 13 at the plug-in hole of the conductive sleeve 11 to prevent the insulating material from being injected into the mating part of the conductive sleeve 11 in the subsequent process of forming the rubber-coated shell 12 on the surface of the conductive sleeve 11 through the rubber-coated injection molding process, thereby ensuring that the subsequent assembly and electrical connection between the conductive sleeve 11 and the plug pin will not be affected by the insulating material, and to a certain extent, reducing the production scrap rate and production cost of the electrical connector.
[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An electrical connector, It is characterized in that include: The conductive sleeve is made of a conductive material and includes a plug-in portion for electrically connecting to the plug pin and a wiring portion for electrically connecting to the conductive cable. One end of the plug-in portion is provided with a plug-in hole for plugging with the plug pin to achieve electrical connection with the plug pin, and the other end of the plug-in portion is electrically connected to the wiring portion. The rubber-encapsulated shell is made of an insulating material and includes a shell body and an anti-dropping clamp ring. The shell body is provided with a plug receiving hole for receiving the plug-in portion on one side thereof, and a wiring receiving hole connected to the plug receiving hole and used to receive the wiring portion and for electrically connecting a conductive cable to the wiring portion is provided on the other side thereof. The anti-dropping clamp ring is formed by extending inwardly from the hole of the plug receiving hole to limit the conductive sleeve from being separated from the plug receiving hole. A material blocking ring is arranged in the plug receiving hole and is located between the anti-dropping clamp ring and the plug-in portion. The inner ring diameter of the material blocking ring is smaller than the hole diameter of the plug-in hole. The material blocking ring is used to block the insulating material from being injected into the mating part of the conductive sleeve when forming the rubber-encapsulated shell.
2. The electrical connector according to claim 1, Features: The electrical connector further comprises a positioning ring for positioning and connecting the blocker ring to the plug-in portion, wherein the positioning ring is formed by vertically extending outward from an outer ring edge of the blocker ring.
3. The electrical connector according to claim 2, Features: The plug-in part includes a plug-in section and a plug-in limiting section used for limiting sleeve engagement with the positioning ring. The outer diameter of the plug-in limiting section is compatible with the inner diameter of the positioning ring, and the outer diameter of the plug-in section is greater than or equal to the outer diameter of the positioning ring.
4. The electrical connector according to claim 1, Features: The opening direction of the plug receiving hole is perpendicular to the opening direction of the wiring receiving hole.
5. The electrical connector according to claim 1, Features: The connection part is provided with an external thread structure on its circumference.
6. The electrical connector according to any one of claims 1 to 5, Features: The rubber-coated shell also includes a connecting portion for fixedly connecting the electrical connector, and the connecting portion is formed by extending outward from a side of the shell body where the wiring receiving hole is opened.
7. The electrical connector according to claim 6, Features: The connecting portion is provided with an external thread structure on its circumference.
8. The electrical connector according to claim 1, Features: The electrical connector also includes a contact piece for electrically connecting to the plug pin, the contact piece is made of conductive material, and the contact piece is arranged in the plug hole.
9. The electrical connector according to claim 8, Features: The contact piece is a rotary spring.
10. The electrical connector according to claim 1, Features: The rubber-encapsulated shell further comprises a positioning member for positioning the electrical connector, and the positioning member is arranged outside the shell body.