Low-cost Type-C connector

Abstract

The utility model discloses a low-cost Type-C connector, which comprises an inner insulator, two middle steel sheets, a plurality of terminals, an outer insulator and a shell, the two middle steel sheets are respectively assembled and fixed in the middle steel sheet grooves; the plurality of terminals are respectively arranged in the corresponding terminal grooves; the outer insulator is formed in an injection molding mode and wraps the inner insulator, the outer insulator comprises a lingual plate and a base which are integrally formed and connected, the plurality of contact parts are all exposed on the surface of the lingual plate, the plurality of main body parts are all buried in the outer insulator, and the plurality of welding parts extend out of the base backwards; and the shell is sleeved on the outer insulator. The two middle steel sheets and the plurality of terminals are directly assembled on the middle steel sheet grooves and the terminal grooves of the inner insulator, the operation is simple, a large amount of time is not consumed, the production efficiency is effectively improved, the production cost is reduced, the structure only needs one-time injection molding, the one-time injection molding process is reduced, the production efficiency can be further improved, and the production cost is reduced. And the production cost is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the connector field technology especially is low cost's Type-C connector. BACKGROUND

[0002] The connector is also called the connector. It is also called the connector and the socket in China, and is generally referred to as the electrical connector. It is the device for connecting two active devices, and transmits current or signal. The connector can simplify the assembly process of electronic products, and also simplify the batch production process; it is easy to maintain, and if a certain electronic component fails, the failed component can be quickly replaced when the connector is installed; and it improves the design flexibility, so that design engineers have more flexibility when designing and integrating new products, and when components are used to form a system. The most widely used connector at present is the USB connector, among which the most commonly used USB connector is USB Type-C, referred to as Type-C, which is a hardware interface specification of Universal Serial Bus (USB). The highlights of the Type-C connector are that it is designed to be thinner, the transmission speed can reach 10Gbps, and the powerful power transmission can reach 100W. The biggest feature is that it supports double-sided insertion of the USB interface.

[0003] Because the upper and lower rows of terminals on the Type-C female seat contact area are designed to be centrally symmetrical, a certain distance of insulating layer between the upper and lower terminals is required, and during the injection molding process of the terminals in the injection mold, the mold cannot be provided with any supporting structure, so as to support and fix the terminals and avoid the internal depression during the plastic filling process. In order to solve this defect, the existing process adopts single-row terminals plus middle steel sheets for the first injection molding, and the plastic has a supporting step after the first injection molding, and the other row of terminals is fixed on the supporting step of the plastic for the second injection molding, so that the insulating body is completely formed. Although this preparation scheme can solve the above problems, the placement of the lower row of terminals and the middle steel sheet needs to be quite accurate during the first injection molding, which requires a lot of time, resulting in reduced production efficiency and increased production cost. Therefore, it is necessary to propose a new scheme to solve the above problems. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model mainly aims at providing a low-cost Type-C connector, which can effectively solve the problem that the existing Type-C female seat connector needs to spend more time in the first injection molding process, resulting in reduced production efficiency and increased production cost.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a low -cost type -C connector, including one inner insulator, two middle steel sheets, a plurality of terminals, an outer insulator and a shell, both sides of the inner insulator are equipped with middle steel sheet slot, and the upper and lower surfaces of the inner insulator are equipped with a plurality of terminal slots, two middle steel sheets are fixed in the middle steel sheet slot respectively, and the two middle steel sheets all have hook parts, a plurality of terminals are arranged in the corresponding terminal slot respectively, and the plurality of terminals all include contact part, main part and welding part which are integrally connected in sequence, the outer insulator is formed by injection molding and wraps the inner insulator, and the outer insulator includes integrally connected tongue plate and pedestal, the hook part is exposed on both sides of the outer insulator, the plurality of contact parts are exposed on the surface of the tongue plate, the plurality of main parts are embedded in the outer insulator, and the plurality of welding parts all stretch out the pedestal, and the shell is sleeved on the outer insulator.

[0007] As a preferred scheme, the width of the terminal slot is greater than the width of the terminal, which is conducive to the flow of glue into the terminal slot during the injection molding of the outer insulator, and the plastic formed after the glue cools fills the terminal slot, effectively preventing liquid or foreign matter from entering the product and causing short circuit.

[0008] As a preferred scheme, the two middle steel sheets are provided with glue flow holes, which can allow the glue to flow into the glue flow holes during the injection molding of the outer insulator, and the middle steel sheets can be firmly and reliably assembled in the middle steel sheet slot after the glue cools.

[0009] As a preferred scheme, the inner insulator is provided with a plurality of glue flow grooves to facilitate the flow of glue during the injection molding of the outer insulator.

[0010] As a preferred scheme, the upper side of the front end of the inner insulator extends a first protrusion, and the lower side of the rear end of the inner insulator extends a second protrusion, and the second protrusion, the first protrusion and the side surface of the inner insulator form the middle steel sheet slot, so that the contact area between the middle steel sheet and the plastic is increased, and the assembly is more firm and reliable.

[0011] As a preferred scheme, the front end of the tongue plate extends an extension, which contacts the external terminal first during the plug-in process, effectively preventing short circuit caused by misplug at the initial stage of plug-in.

[0012] As a preferred scheme, the circumferential surface of the pedestal is provided with an annular protruding rib, and the inner wall surface of the shell is in close contact with the annular protruding rib, which lengthens the path of liquid invading the product, thereby reducing the risk of short circuit.

[0013] As a preferred scheme, a waterproof ring is sleeved on the shell to improve the waterproof function of the connector.

[0014] As a preferred solution, the shell comprises an inner shell, an outer shell and a fixing shell, the outer shell is fixed on the inner shell by welding, the fixing shell is fixed on the outer shell by welding, the fixing shell is provided with a fixing hole, and the fixing shell extends downwardly to form a welding foot.

[0015] As a preferred solution, the rear insulator is formed on the main body of the plurality of terminals and located at the rear side of the base, further improving the waterproof performance of the connector.

[0016] The utility model has obvious advantages and beneficial effects compared with the prior art, specifically speaking, from the above technical scheme, it can be known that:

[0017] By assembling the two steel sheets and the plurality of terminals directly on the middle steel sheet groove and the terminal groove of the inner insulator, the operation is simple, a large amount of time is not needed, the production efficiency is effectively improved, the production cost is reduced, and the structure only needs to be injection molded once, the injection molding process is reduced, the production efficiency is further improved, and the production cost is further compressed.

[0018] To make the structure characteristics and effects of the utility model clearer, the utility model will be described in detail below in combination with the drawings and specific embodiments: BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the assembly perspective view of the preferred embodiment of the utility model;

[0020] Figure 2 is the assembly perspective view of the preferred embodiment of the utility model from another angle;

[0021] Figure 3 is the exploded view of the preferred embodiment of the utility model;

[0022] Figure 4 is the sectional view of the preferred embodiment of the utility model;

[0023] Figure 5 is the partial assembly view of the preferred embodiment of the utility model;

[0024] Figure 6 is the enlarged view of the inner insulator in the preferred embodiment of the utility model.

[0025] EXPLANATION OF THE DRAWINGS:

[0026] 10, inner insulator 11, middle steel sheet groove

[0027] 12, terminal groove 13, glue flow groove

[0028] 14, first protruding part 15, second protruding part

[0029] 20, middle steel sheet 21, hook portion

[0030] 22, glue flow hole 30, terminal

[0031] 31, contact portion 32, main body portion

[0032] 33, welding portion 40, outer insulator

[0033] 41, tongue plate 42, base

[0034] 43, extension portion 44, annular convex rib

[0035] 50, outer shell 501, waterproof ring

[0036] 51, inner shell 52, outer shell

[0037] 53, fixed shell 531, fixed hole

[0038] 532, welding foot 60, rear insulator DETAILED DESCRIPTION

[0039] Please refer to Figures 1 to 6 Fig. 1 shows the specific structure of the preferred embodiment of the present application, which comprises an inner insulator 10, two middle steel sheets 20, a plurality of terminals 30, an outer insulator 40, and an outer shell 50.

[0040] Both sides of the inner insulator 10 are provided with middle steel sheet grooves 11, and the upper and lower surfaces of the inner insulator 10 are provided with a plurality of terminal grooves 12. In this embodiment, the width of the terminal groove 12 is greater than the width of the terminal 30, which is conducive to the flow of glue into the terminal groove 12 during the injection molding of the outer insulator 40. The plastic formed by the cooling of the glue fills the terminal groove 12, effectively preventing the entry of liquid or foreign matter into the product, thereby causing short circuit. In addition, the inner insulator 10 is provided with a plurality of glue flow grooves 13 to facilitate the flow of glue during the injection molding of the outer insulator 40. The upper side of the front end of the inner insulator 10 extends a first protrusion 14, and the lower side of the rear end of the inner insulator 10 extends a second protrusion 15. The second protrusion 15, the first protrusion 14, and the side surface of the inner insulator 10 form the aforementioned middle steel sheet groove 11, so that the contact area between the middle steel sheet 20 and the plastic is increased, and the assembly is more firm and reliable.

[0041] The two middle steel sheets 20 are respectively assembled and fixed in the middle steel sheet grooves 11, and each of the two middle steel sheets 20 has a hook portion 21. In this embodiment, the two middle steel sheets 20 are each provided with a glue flow hole 22, which allows the glue to flow into the glue flow hole 22 during the injection molding of the outer insulator 40. After the glue cools, the middle steel sheet 20 can be firmly and reliably assembled in the middle steel sheet groove 11.

[0042] The plurality of terminals 30 are respectively arranged in the corresponding terminal grooves 12, and each of the plurality of terminals 30 comprises a contact portion 31, a main body portion 32 and a welding portion 33 which are integrally formed in sequence.

[0043] The outer insulator 40 is formed by injection molding and wraps the inner insulator 10, and the outer insulator 40 comprises a tongue plate 41 and a base 42 which are integrally formed, the hook portions 21 are exposed on both sides of the outer insulator, the plurality of contact portions 31 are exposed on the surface of the tongue plate 41, the plurality of main body portions 32 are embedded in the outer insulator 40, and the plurality of welding portions 33 extend backward beyond the base 42; in this embodiment, the tongue plate 41 extends forwardly with an extension portion 43, and in the process of plugging, the external terminal first contacts the extension portion 43, effectively preventing short circuit caused by misplug in the early stage of plugging; in addition, the circumferential surface of the base 42 is provided with annular convex ribs 44 which are arranged in front and back.

[0044] The shell 50 is sleeved on the outer insulator 40; in this embodiment, the inner wall surface of the shell 50 is in close contact with the annular convex ribs 44, which lengthens the path of liquid invading the inside of the product, thereby reducing the risk of short circuit, and the shell 50 is sleeved with a waterproof ring 501 to improve the waterproof function of the connector; specifically, the shell 50 comprises an inner shell 51, an outer shell 52 and a fixed shell 53, the outer shell 52 is sleeved and fixed on the inner shell 51 by welding, the fixed shell 53 is fixed on the outer shell 52 by welding, the fixed shell 53 is provided with a fixed hole 531, and the fixed shell 53 extends downwardly with a welding foot 532.

[0045] Further, the rear insulator 60 is further included, which is formed on the main body portion 32 of the plurality of terminals 30 and located at the rear side of the base 42, further improving the waterproof performance of the connector.

[0046] The manufacturing process of this embodiment is described as follows:

[0047] Firstly, the two steel sheets 20 and the plurality of terminals 30 are directly assembled on the inner insulator 10 in the steel sheet groove 11 and the terminal groove 12, and placed in the injection mold, and the outer insulator 40 and the rear insulator 60 are formed by injection molding, then the outer shell 52 is welded and fixed on the inner shell 51, the fixed shell 53 is welded and fixed on the outer shell 52, then the shell 50 is processed to be sleeved on the outer insulator 40, and finally the waterproof ring 501 is sleeved on the shell 50.

[0048] The utility model discloses design emphases at: through with two middle steel sheet and multiple terminal direct assembly in the middle steel sheet groove and terminal groove of inner insulator, simple operation does not need to spend a lot of time, effectively improves production efficiency to reduce production cost, and, this structure only needs once injection molding, reduces once injection molding technology, can further improve production efficiency, and further compresses production cost.

[0049] The above is only the preferred embodiment of the utility model, and does not make any limitation on the technical range of the utility model, so any slight modification, equivalent change and modification made according to the technical essence of the utility model to the above embodiment still belong to the range of the technical scheme of the utility model.

Claims

1. A low-cost Type-C connector, characterized by: The utility model discloses a terminal, which comprises an inner insulator, two middle steel sheets, a plurality of terminals, an outer insulator and a shell, middle steel sheet grooves are formed in the two sides of the inner insulator, a plurality of terminal grooves are formed in the upper and lower surfaces of the inner insulator, the two middle steel sheets are respectively assembled and fixed in the middle steel sheet grooves, and the two middle steel sheets are provided with hook portions, the plurality of terminals are respectively arranged in the corresponding terminal grooves, and the plurality of terminals each comprise a contact portion, a main body portion and a welding portion which are integrally connected in sequence, the outer insulator is formed by injection molding and wraps the inner insulator, the outer insulator comprises a tongue plate and a base which are integrally connected, the hook portions are exposed on the two sides of the outer insulator, the plurality of contact portions are exposed on the surface of the tongue plate, the plurality of main body portions are embedded in the outer insulator, and the plurality of welding portions extend backward and out of the base, and the shell is sleeved on the outer insulator.

2. The low cost Type-C connector of claim 1, wherein: The width of the terminal groove is greater than the width of the terminal.

3. The low cost Type-C connector of claim 1, wherein: The two middle steel sheets are provided with glue flow holes.

4. The low cost Type-C connector of claim 1, wherein: The inner insulator is provided with a plurality of glue flow grooves.

5. The low cost Type-C connector of claim 1, wherein: First protrusions are extended above the two side faces of the front end of the inner insulator, second protrusions are extended below the two side faces of the rear end of the inner insulator, and the second protrusions, the first protrusions and the side faces of the inner insulator form the middle steel sheet grooves.

6. The low cost Type-C connector of claim 1, wherein: An extension portion is extended from the front end of the tongue plate.

7. The low cost Type-C connector of claim 1, wherein: An annular protruding rib is protruded on the circumferential surface of the base, and the inner wall surface of the shell is in close contact with the annular protruding rib.

8. The low cost Type-C connector of claim 1, wherein: A waterproof ring is sleeved on the shell.

9. The low cost Type-C connector of claim 1, wherein: The shell comprises an inner shell body, an outer shell body and a fixing shell, the outer shell body is sleeved and fixed on the inner shell body by welding, the fixing shell is fixed on the outer shell body by welding, the fixing shell is provided with a fixing hole, and the fixing shell extends downward and is provided with a welding foot.

10. The low cost Type-C connector of claim 1, wherein: A rear insulator is further provided, which is formed on the main body portions of the plurality of terminals and located at the rear side of the base.

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