Double-shell sinking plate connector

Abstract

The double-shell sinking plate connector comprises an inner shell, a two-shot injection molding part fixedly embedded in the inner shell and an outer shell fixedly arranged on the inner shell in a sleeving mode, an annular glue groove is formed in the embedded part, in the inner shell, of the two-shot injection molding part, and a glue flowing through hole is formed between the inner walls of the two opposite sides, close to the central axis of the glue groove, of the glue groove in a penetrating mode; according to the double-shell sinking plate connector, after the inner shell is embedded in the two-shot injection molding part, glue is injected into the glue groove through the glue dispensing opening, after the glue is filled in the glue groove, fixed connection between the two-shot injection molding part and the inner shell can be achieved, and meanwhile in the glue injection process, the glue can be injected into the two-shot injection molding part through the glue dispensing opening. The glue flowing through holes can improve the flowing speed of the glue in the glue groove and enable the glue injection speeds of the two sides of the glue groove to be close, so that the filling uniformity of the glue in the glue groove is guaranteed, and the connection strength and the sealing performance of the two-shot injection molding part and the inner shell in the circumferential direction are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a double-shell sunken plate connector. Background Art

[0002] TYPE C electronic connectors are commonly used to connect electronic devices such as mobile phones and TVs. They have multiple pins to ensure fast and stable data transmission. Compared with traditional Micro USB connectors, TYPE C connectors provide higher transmission rates and more stable power supply, thus bringing users a faster and more efficient experience.

[0003] Most of the existing TYPE C connectors adopt a nested assembly structure, in which a secondary injection molding is performed on the terminal to form a connection body, and the connection body is fixedly connected to the shell. In order to ensure the connection strength and overall sealing between the connection body and the shell, it is necessary to fill the space between the two with colloid. The traditional connector injection structure is difficult to ensure the flow uniformity of the colloid and the overall injection efficiency. Summary of the invention

[0004] In view of the deficiencies of the prior art, the utility model provides a double-shell sunken plate connector with high overall connection strength and good sealing performance.

[0005] In order to achieve the above objectives, the utility model is implemented through the following technical solutions.

[0006] The present application provides a double-shell sunken plate connector, comprising:

[0007] Inner shell;

[0008] A two-shot injection molded part is fixedly embedded in the inner shell;

[0009] An outer shell, fixedly sleeved on the inner shell;

[0010] Wherein, the two-shot injection molded part is provided with an annular glue groove on the embedded part in the inner shell, and the central axis of the glue groove is located in the sleeve direction between the inner shell and the outer shell;

[0011] A glue flow through hole is provided between the inner walls on the two opposite sides of the glue groove close to its own central axis, and a glue dispensing port is provided between the inner wall on one side along its own axial direction and the corresponding end of the second injection molded part.

[0012] It is further defined that in the above-mentioned double-shell sinker connector, the inner shell is embedded in the outer shell and a section thereof extends to the outer side of the outer shell;

[0013] A ring-shaped limiting flange is fixedly provided at the extension portion of the inner shell relative to the outer shell, and a ring-shaped positioning flange is fixedly provided at one end of the outer shell close to the limiting flange;

[0014] Among them, the central axis of the limiting flange and the positioning flange is located in the sleeve direction between the inner shell and the outer shell, and a waterproof ring is sleeved on the extended part of the inner shell relative to the outer shell, and the waterproof ring is respectively in contact with the limiting flange and the positioning flange at both ends of its own axial direction.

[0015] It is further defined that in the above-mentioned double-shell sunken plate connector, a connecting portion between the glue dispensing port and the glue groove is provided with a corner portion.

[0016] It is further defined that in the above-mentioned double-shell sunken plate connector, a chamfer is provided at a connecting portion between an inner wall of the glue groove on a side close to the glue dispensing port and an inner wall on a side close to its own central axis.

[0017] It is further defined that, in the above-mentioned double-shell sunken plate connector, the two-shot injection molded part has a plurality of terminals fixedly arranged in a linear array at one end close to the dispensing port;

[0018] Wherein, a pressing groove is provided between at least one group of two adjacent terminals on the two-shot injection molded part.

[0019] It is further defined that, in the above-mentioned double-shell sunken plate connector, a limit platform is fixedly provided on the outer shell, and an abutment foot capable of abutting against a side end of the limit platform close to the inner shell is fixedly provided on the second-shot injection molded part.

[0020] It is further defined that in the above-mentioned double-shell sunken plate connector, the abutment foot and the limit platform are arranged to be in surface contact.

[0021] It is further defined that in the above-mentioned double-shell sunken plate connector, two groups of mounting feet are symmetrically and fixedly provided on the shell about its own central axis, and each group of the mounting feet includes a plurality of mounting feet arranged in an axial array along the shell.

[0022] It is further defined that in the above-mentioned double-shell sunken plate connector, the mounting foot is configured to be formed by stamping and bending on the shell, and the shell is provided with a pressing opening matching the shape of the mounting foot;

[0023] Wherein, at least one of the pressure ports is provided with a material discharge groove between the housing axial direction and the corresponding mounting foot;

[0024] And / or, the pressure opening closest to the positioning flange has an inner wall close to the positioning flange abutting against the mounting foot at the corresponding position.

[0025] It is further defined that in the above-mentioned double-shell sunken plate connector, the outer shell and the inner shell are fixedly connected by laser spot welding.

[0026] The utility model has at least the following beneficial effects:

[0027] 1. After the inner shell is embedded in the two-shot injection molded part, glue is injected into the glue groove through the glue dispensing port. After the glue is filled in the glue groove, a fixed connection between the two-shot injection molded part and the inner shell can be achieved. At the same time, during the injection of the glue, the glue flow through hole can increase the flow speed of the glue in the glue groove and make the injection speeds on both sides of the glue groove close, thereby ensuring the filling uniformity of the glue in the glue groove and ensuring the connection strength and sealing of the two-shot injection molded part and the inner shell in the circumferential direction;

[0028] 2. The waterproof ring is positioned by the limited flange and the positioning flange. The ring structure of the limited flange and the positioning flange can ensure the axial locking of the waterproof ring to prevent the waterproof ring from falling off, and at the same time can improve the sealing effect of the waterproof ring;

[0029] 3. Through the abutment between the stopper and the stopper, on the one hand, the two-shot injection molded part and the inner shell can be positioned when they are installed in the outer shell to prevent the two-shot injection molded part from loosening in the outer shell. On the other hand, through the surface contact between the stopper and the stopper, the position accuracy of the two-shot injection molded part in the outer shell can be improved.

[0030] 4. By setting the mounting foot close to the positioning flange side as a piercing structure, the structural strength of the housing close to the positioning flange end can be improved, ensuring the overall installation reliability of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of a double-shell sunken plate connector according to an embodiment of the present application;

[0032] Figure 2 This is a schematic diagram of the structure explosion of the double-shell sunken plate connector according to an embodiment of the present application;

[0033] Figure 3 This is a schematic diagram of the structure explosion of the double-shell sunken plate connector according to an embodiment of the present application;

[0034] Figure 4 This is a schematic structural diagram of the "housing 300" in the double-shell sunken plate connector of the embodiment of the present application;

[0035] Figure 5 This is a schematic structural diagram of the "housing 300" in the double-shell sunken plate connector of the embodiment of the present application;

[0036] Figure 6 This is a schematic diagram of the coordination of the "two-shot injection molded part 100" and the "housing 300" in the double-shell sunken plate connector according to an embodiment of the present application;

[0037] Figure 7 This is a schematic structural diagram of the "housing 300" in the double-shell sunken plate connector of the embodiment of the present application;

[0038] Figure 8This is a schematic structural diagram of a "two-shot injection molded part 100" in a double-shell sunken plate connector according to an embodiment of the present application;

[0039] Fig. 9 This is a schematic structural diagram of a "two-shot injection molded part 100" in a double-shell sunken plate connector according to an embodiment of the present application;

[0040] Fig.10 This is a schematic structural diagram of a "two-shot injection molded part 100" in a double-shell sunken plate connector according to an embodiment of the present application;

[0041] Fig.11 It is a schematic diagram of the structure enlargement of the "pressed groove 160" portion in the double-shell sunken plate connector of the embodiment of the present application.

[0042] Reference numerals

[0043] Two-shot injection molded part 100, foot 110, glue dispensing port 120, glue groove 130, chamfer 131, glue flow hole 140, terminal 150, pressing groove 160, inner shell 200, limiting flange 210, accommodating cavity 220, outer shell 300, mounting foot 310, pressing port 311, material discharge trough 312, positioning flange 320, welding point 330, embedded cavity 340, limiting platform 350, waterproof ring 400. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0045] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0046] The double-shell sinker connector provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in combination with the accompanying drawings.

[0047] like Figures 1 to 11As shown, an embodiment of the present application provides a double-shell sunken plate connector, including an inner shell 200 , a two-shot injection molded part 100 fixedly embedded in the inner shell 200 , and an outer shell 300 fixedly sleeved on the inner shell 200 .

[0048] An annular glue groove 130 is provided on the embedded portion of the second-shot injection molded part 100 in the inner shell 200, and a glue flow hole 140 is provided between the inner walls on both sides of the glue groove 130 close to the central axis, and a glue dispensing port 120 is provided between the inner wall on one side and the corresponding end of the second-shot injection molded part 100 along the axial direction.

[0049] The central axis of the glue groove 130 is located in the sleeve direction between the inner shell 200 and the outer shell 300 .

[0050] In an embodiment of the present application, a double-shell sunken plate connector as described above is adopted. After the inner shell 200 is embedded in the two-shot injection molded part 100, glue is injected into the glue groove 130 through the glue dispensing port 120. After the glue is filled in the glue groove 130, a fixed connection between the two-shot injection molded part 100 and the inner shell 200 can be achieved. At the same time, during the injection of the glue, the glue flow through hole 140 can increase the flow speed of the glue in the glue groove 130, and make the injection speeds on both sides of the glue groove 130 close, thereby ensuring the filling uniformity of the glue in the glue groove 130, and ensuring the connection strength and sealing of the two-shot injection molded part 100 and the inner shell 200 in the circumferential direction.

[0051] In a preferred embodiment, Figures 1 to 7 As shown, the inner shell 200 is embedded in the outer shell 300 and one section of it extends to the outside of the outer shell 300. A ring-shaped limiting flange 210 is fixedly provided at the extended part of the inner shell 200 relative to the outer shell 300, and a ring-shaped positioning flange 320 is fixedly provided at one end of the outer shell 300 close to the limiting flange 210.

[0052] Among them, the central axes of the limiting flange 210 and the positioning flange 320 are located in the sleeve direction between the inner shell 200 and the outer shell 300, and a waterproof ring 400 is sleeved on the extended part of the inner shell 200 relative to the outer shell 300, and the waterproof ring 400 is respectively abutted against the limiting flange 210 and the positioning flange 320 at both ends of the axial direction.

[0053] In an embodiment of the present application, the above-mentioned double-shell sunken plate connector is adopted, and the waterproof ring 400 is positioned by cooperating with the limiting flange 210 and the positioning flange 320. The annular structure of the limiting flange 210 and the positioning flange 320 can ensure the axial locking of the waterproof ring 400, prevent the waterproof ring 400 from falling off, and at the same time can improve the sealing effect of the waterproof ring 400.

[0054] It can be understood that during assembly, the two-shot injection molded part 100 is first fixedly installed in the inner shell 200, and then the inner shell 200 is fixedly installed in the outer shell 300, and finally a waterproof ring 400 is mounted on the extended portion of the inner shell 200 relative to the outer shell 300, and the waterproof ring 400 completes the limiting action under the interference of the limiting flange 210 and the positioning flange 320.

[0055] It can be understood that the waterproof ring 400 has a certain elasticity, so it can be put on the inner shell 200 when the inner shell 200 and the outer shell 300 are connected, or the waterproof ring 400 is set to a non-elastic structure, then the waterproof ring 400 can be put on the inner shell 200 when the inner shell 200 and the outer shell 300 are not connected, and then the inner shell 200 is embedded in the outer shell 300. At this time, the waterproof ring 400 can also be limited by the cooperation of the limiting flange 210 and the positioning flange 320.

[0056] In a preferred embodiment, Fig. 9 , Fig.10 As shown, the connecting portion between the glue dispensing port 120 and the glue groove 130 is provided with a corner portion.

[0057] It is understandable that when glue is injected into the glue groove 130 through the glue dispensing port 120 , the corner portion can guide the glue, thereby improving the smoothness of the glue flowing into the glue groove 130 .

[0058] In a preferred embodiment, Fig. 9 , Fig.10 As shown, a chamfer 131 is provided at the connection portion between the inner wall of the glue groove 130 close to the glue dispensing port 120 and the inner wall close to the central axis.

[0059] It can be understood that the overall structural strength of the two-shot molded part 100 can be increased by the chamfer 131 .

[0060] In a preferred embodiment, Fig.11 As shown, a plurality of terminals 150 are fixedly arranged in a linear array at one end of the two-shot molded part 100 close to the dispensing port 120 .

[0061] A pressing groove 160 is provided between at least one group of two adjacent terminals 150 on the two-shot molded part 100 .

[0062] In an embodiment of the present application, a double-shell sunken plate connector as described above is adopted, and a two-shot injection molded part 100 is integrally injection molded on a terminal 150. During the injection molding process, the terminal 150 is first positioned and then the upper and lower molds of the two-shot injection molded part 100 are closed. A protrusion matching the pressing groove 160 is provided on the upper mold or the lower mold, and the terminal 150 can be positioned by the protrusion. When the upper and lower molds of the two-shot injection molded part 100 are closed, the position of the terminal 150 can be prevented from being offset, thereby improving the accuracy of the overall injection molding of the two-shot injection molded part 100 and thereby ensuring product quality.

[0063] In a preferred embodiment, Figures 1 to 7 As shown, a receiving cavity 220 is formed through the inner shell 200 , and the second-shot injection molded part 100 is disposed in the receiving cavity 220 and bonded to the inner wall of the receiving cavity 220 by colloid.

[0064] In a preferred embodiment, Figures 1 to 7 As shown, an embedding cavity 340 is formed through the outer shell 300 , and the inner shell 200 is embedded in the embedding cavity 340 and fixedly connected to the inner wall of the embedding cavity 340 .

[0065] In a preferred embodiment, Figures 1 to 4 , Figure 6 , Figure 7 As shown, at least one welding point 330 is provided on the outer shell 300 , and the outer shell 300 and the inner shell 200 are fixed by laser spot welding through the welding point 330 .

[0066] It is understandable that the fixed connection method between the inner shell 200 and the outer shell 300 is not limited to the above one. For example, the two can also be connected by snap connection, bonding, etc., as long as the relative position between the two can be fixed, which will not be elaborated here.

[0067] In a preferred embodiment, Figure 6 , Figure 7 , Figure 8 As shown, a limiting platform 350 is fixedly provided on the outer shell 300 , and an abutting foot 110 capable of abutting against a side end of the limiting platform 350 close to the inner shell 200 is fixedly provided on the second-shot injection molded part 100 .

[0068] The abutting foot 110 and the limiting platform 350 are arranged to be in surface contact.

[0069] It can be understood that, through the abutment cooperation between the limit platform 350 and the abutment foot 110, on the one hand, the two-shot injection molded part 100 and the inner shell 200 can be positioned when the two-shot injection molded part 100 and the inner shell 200 are installed in the outer shell 300, thereby avoiding the two-shot injection molded part 100 from loosening in the outer shell 300; on the other hand, through the surface contact between the abutment foot 110 and the limit platform 350, the position accuracy of the two-shot injection molded part 100 in the outer shell 300 can be improved.

[0070] In a preferred embodiment, Figure 6 , Figure 7 , Figure 8 As shown, two limiting platforms 350 are symmetrically and fixedly provided on the housing 300 , and two abutting feet 110 are fixedly provided on the two-shot injection molded part 100 , and the two abutting feet 110 correspond to the positions of the two limiting platforms 350 respectively.

[0071] In a preferred embodiment, Figures 1 to 7 As shown, two groups of mounting feet 310 are symmetrically and fixedly arranged on the housing 300 about its own central axis, and each group of mounting feet 310 includes a plurality of mounting feet 310 arranged in an axial array along the housing 300 .

[0072] In a preferred embodiment, Figures 1 to 7 As shown, the mounting foot 310 is configured to be formed by stamping and bending on the housing 300 .

[0073] It is understandable that during the stamping process of the mounting foot 310 , a pressing opening 311 matching the shape of the mounting foot 310 and communicating with the embedding cavity 340 is formed on the housing 300 .

[0074] In a preferred embodiment, Figures 1 to 7 As shown, at least one pressing port 311 is provided with a material discharge groove 312 between the housing 300 and the corresponding mounting foot 310 in the axial direction.

[0075] It is understandable that the mounting foot 310 is formed by stamping and bending the outer shell 300 , and the gap between the mounting foot 310 and the pressing opening 311 can be increased by providing the feed groove 312 , thereby facilitating the processing of the mounting foot 310 .

[0076] In a preferred embodiment, Figures 1 to 7 As shown, the pressing opening 311 closest to the positioning flange 320 abuts against the mounting foot 310 at the corresponding position on the inner wall of the side close to the positioning flange 320 .

[0077] It is understandable that if a feed groove 312 is provided on the pressing port 311 on the side closest to the positioning flange 320, the axial distance between the pressing port 311 and the positioning flange 320 will be shortened, making the end of the shell 300 close to the positioning flange 320 prone to deformation. By setting the mounting foot 310 close to the side of the positioning flange 320 as a piercing structure, the structural strength of the end of the shell 300 close to the positioning flange 320 can be improved, thereby ensuring the overall installation reliability of the connector.

[0078] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0079] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A double shell sunken plate connector, characterized in that: include: Inner shell; A two-shot injection molded part is fixedly embedded in the inner shell; An outer shell, fixedly sleeved on the inner shell; Wherein, the two-shot injection molded part is provided with an annular glue groove on the embedded part in the inner shell, and the central axis of the glue groove is located in the sleeve direction between the inner shell and the outer shell; A glue flow through hole is provided between the inner walls on both sides of the glue groove close to its own central axis, and a glue dispensing port is provided between the inner wall on one side along its own axial direction and the corresponding end of the second injection molded part.

2. A double shell sunken plate connector according to claim 1, characterized in that: The inner shell is embedded in the outer shell and a section of the inner shell extends to the outside of the outer shell; A ring-shaped limiting flange is fixedly provided at the extension portion of the inner shell relative to the outer shell, and a ring-shaped positioning flange is fixedly provided at one end of the outer shell close to the limiting flange; Among them, the central axis of the limiting flange and the positioning flange is located in the sleeve direction between the inner shell and the outer shell, and a waterproof ring is sleeved on the extended part of the inner shell relative to the outer shell, and the waterproof ring is respectively in contact with the limiting flange and the positioning flange at both ends of its own axial direction.

3. A double shell sunken plate connector according to claim 1, characterized in that: The communicating part between the glue dispensing port and the glue groove is provided with a corner part.

4. A double shell sunken plate connector according to claim 1 or 3, characterized in that: A chamfer is provided at a connection portion between an inner wall of the glue groove on a side close to the glue dispensing port and an inner wall on a side close to the central axis thereof.

5. The double-shell sunken plate connector according to claim 1, characterized in that: The two-shot injection molded part is linearly arrayed and fixed with a plurality of terminals at one end close to the dispensing port; Wherein, a pressing groove is provided between at least one group of two adjacent terminals on the two-shot injection molded part.

6. A double shell sunken plate connector according to claim 1, characterized in that: A limiting platform is fixedly provided on the outer shell, and an abutting foot capable of abutting against a side end of the limiting platform close to the inner shell is fixedly provided on the second-shot injection molded part.

7. A double shell sunken plate connector according to claim 6, characterized in that: The abutting foot and the limiting platform are arranged to be in surface contact.

8. A double shell sunken plate connector according to claim 1 or 2, characterized in that: The shell is symmetrically and fixedly provided with two groups of mounting feet about its own central axis, and each group of mounting feet includes a plurality of mounting feet arranged in an array along the axial direction of the shell.

9. A double shell sunken plate connector according to claim 8, characterized in that: The mounting foot is configured to be formed by stamping and bending on the shell, and the shell is provided with a pressing notch matching the shape of the mounting foot; Wherein, at least one of the pressure ports is provided with a material discharge groove between the housing axial direction and the corresponding mounting foot; And / or, the pressure opening closest to the positioning flange has an inner wall close to the positioning flange abutting against the mounting foot at the corresponding position.

10. The double shell sunken plate connector according to claim 1, characterized in that: The outer shell and the inner shell are fixedly connected by laser spot welding.

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