DC power socket

Abstract

A DC power socket comprises a fixing seat, a first terminal and a second terminal, the top surface of the fixing seat is provided with a butt joint cavity extending inwards, the fixing seat is further provided with a butt joint column extending into the butt joint cavity, the first terminal comprises a plurality of first contact parts, a first welding part and a first connecting part located between the first contact parts and the first welding part, and the second terminal comprises a plurality of second contact parts and a plurality of second welding parts. One end, far away from the first connecting part, of each first contact part is bent outwards to form a first bent cantilever beam elastic sheet, and the first contact parts are inclined outwards from the direction far away from the first connecting part, so that the first contact parts are distributed in an inverted cone shape; the second terminal comprises a plurality of second contact parts, a second welding part and a second connecting part located between the second contact parts and the second welding part, and one end, far away from the second connecting part, of each second contact part is bent outwards to form a second bent cantilever beam elastic sheet; in the assembling process, the second terminals are arranged on the periphery of the first terminals in a surrounding mode, position overlapping is achieved in the vertical direction, space is effectively saved, the overall size of the DC power socket is reduced, practicability is high, and high popularization significance is achieved.

Description

Technical Field

[0001] The utility model relates to a socket structure, in particular to a DC power socket. Background Art

[0002] A DC power socket is a socket that connects electronic products to a dedicated power supply. By aligning the socket with an external power connector, the circuit is established, allowing the external power supply to power the electronic product. However, existing DC power sockets are complex and have numerous components. Their design also hinders their compact size, which is inconsistent with the trend of increasingly smaller and thinner electronic products. Improvements are necessary. Utility Model Content

[0003] Based on this, it is necessary to provide a DC power socket to address the deficiencies in the existing technology.

[0004] The technical solution of the utility model is as follows: a DC power socket, which includes a fixing base, a first terminal, and a second terminal. The top surface of the fixing base is provided with a docking cavity extending inwardly, and the fixing base is also provided with a docking post extending into the docking cavity. The docking cavity is arranged around the outside of the docking post, and the inner wall of the docking cavity is arranged opposite to the outer wall of the docking post. The first terminal includes a plurality of first contact portions, a first welding portion, and a first connecting portion located between the first contact portion and the first welding portion. The end of the first contact portion away from the first connecting portion is bent outward to form a first bent cantilever beam. The spring piece, the first contact portion is inclined outward from the direction away from the first connecting portion, so that the first contact portions are distributed in an inverted cone shape, the second terminal includes a plurality of second contact portions, a second welding portion, and a second connecting portion located between the second contact portion and the second welding portion, and the end of the second contact portion away from the second connecting portion is bent outward to form a second bent cantilever beam spring piece; when assembled, the second terminals are arranged around the periphery of the first terminals, the first bent cantilever beam spring piece on the first contact portion extends into the docking cavity, and the second bent cantilever beam spring piece on the second contact portion extends into the docking cavity.

[0005] In one embodiment, the first connecting portion is configured as an arc as a whole, and the first contact portions are evenly spaced along the arc shape of the first connecting portion.

[0006] In one embodiment, a first limiting groove and several second limiting grooves are provided at the bottom of the fixing seat, and several first guide grooves and several second guide grooves are also provided on the fixing seat, the first guide groove is connected with the first limiting groove and extends to the outer wall of the docking column, the second guide groove is connected with the second limiting groove and extends to the inner wall of the docking cavity, the first connecting portion of the first terminal is clamped in the first limiting groove, and the first contact portion of the first terminal extends into the first guide groove; the second connecting portion of the second terminal is clamped in the second limiting groove, and the second contact portion of the second terminal extends into the second guide groove.

[0007] In one embodiment, the second limiting grooves are arranged around the outside of the first limiting grooves.

[0008] In one embodiment, a signal terminal is further included, wherein the signal terminal includes a third contact portion, a third welding portion, and a third connecting portion. The fixing base is also provided with an assembly groove, which extends from the bottom of the fixing base to the interior of the docking column, and the third connecting portion and the third contact portion of the signal terminal extend into the assembly groove.

[0009] In one embodiment, the third contact portion is U-shaped, and a contact head is protruding inward from the third contact portion. A docking hole is also provided on the docking column. The docking hole passes downward from the top surface of the docking column, and the docking hole is connected to the assembly groove. The contact head on the third contact portion extends into the docking hole.

[0010] In one embodiment, it further includes a shell and a bottom cover, the first terminal, the second terminal, and the signal terminal are clamped between the fixing seat and the base, the bottoms of the first terminal, the second terminal, and the signal terminal pass through the bottom cover, and the shell is sleeved on the outside of the fixing seat and the bottom cover.

[0011] In one embodiment, a step groove is provided on one side of the bottom cover, and a plurality of jacks are provided on the bottom cover, and the jacks are connected to the step groove; the first welding part, the second welding part, and the third welding part pass through the jacks and the step groove of the base, and the DC power socket also includes a waterproof layer, which is arranged in the step groove.

[0012] In one embodiment, a plurality of protrusions are provided on one side of the bottom cover, and the protrusions of the bottom cover are snapped into the fixing seat.

[0013] In one embodiment, the first terminal is a positive power terminal, and the second terminal is a negative power terminal.

[0014] The DC power socket of the present invention has the beneficial effects of: by configuring the first terminal as a claw-shaped structure composed of a plurality of spring pieces, the end of the first contact portion away from the first connecting portion is bent outward, and the first contact portions on the first terminal are distributed in an inverted cone shape. When assembled, the first contact portions of the first terminal and the second contact portions of the second terminal overlap in the vertical direction, and the first contact portion of the first terminal and the second contact portion of the second terminal extend into the docking cavity from both the inside and the outside, effectively saving space and reducing the overall volume of the DC power socket. The utility model is highly practical and has strong promotion significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figures 1 to 3 This is a schematic diagram of the structure of the DC power socket of the utility model in different directions;

[0016] Figures 4 and 5 Exploded views of the DC power socket of the present invention at different angles;

[0017] Figure 6 This is a bottom view of the bottom cover of the DC power socket of the present invention. DETAILED DESCRIPTION

[0018] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0021] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0022] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0023] 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. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0024] See also Figures 1 to 6 The utility model provides a DC power socket, which includes a fixing base 10, a first terminal 20, a second terminal 30, a signal terminal 40, a shell 50, and a bottom cover 60. The first terminal 20, the second terminal 30, and the signal terminal 40 are clamped between the fixing base 10 and the base, and the bottoms of the first terminal 20, the second terminal 30, and the signal terminal 40 pass through the bottom cover 60. The shell 50 is sleeved on the outside of the fixing base 10 and the bottom cover 60.

[0025] A stop portion 11 is provided on the outer side surface of the fixing base 10 near the top surface, and a plurality of first card slots 12 and second card slots 13 are provided on the outer side surface of the fixing portion. The first card slots 12 and the second card slots 13 correspond to each other one by one. Each first card slot 12 and a second card slot 13 are spaced apart along the main axis direction of the fixing base 10, and the second card slot 13 extends to the bottom surface of the fixing base 10. The groove wall of the second card slot 13 on the side of the first card slot 12 is inclined outward to form a guide surface 131.

[0026] The top surface of the fixing base 10 is provided with a docking cavity 14 extending inward, and the fixing base 10 is also provided with a docking column 15 extending into the docking cavity 14. The docking cavity 14 is surrounded by the outside of the docking column 15, and the inner wall of the docking cavity 14 is arranged opposite to the outer wall of the docking column 15.

[0027] The bottom of the fixing base 10 is provided with a first limiting groove 16 and a plurality of second limiting grooves 18. The second limiting grooves 18 are arranged around the outside of the first limiting groove 16. In addition, the fixing base 10 is also provided with a plurality of first guide grooves 17 and a plurality of second guide grooves 19. The first guide groove 17 is connected to the first limiting groove 16 and extends to the outer wall of the docking column 15. The second guide groove 19 is connected to the second limiting groove 18 and extends to the inner wall of the docking cavity 14. In this embodiment, the first limiting groove 16 is arranged in an arc shape in the horizontal direction. In addition, the fixing base 10 is also provided with an assembly groove 110, which extends from the bottom of the fixing base 10 to the interior of the docking column 15. The docking column 15 is also provided with a docking hole 151, which extends downward from the top surface of the docking column 15 and is connected to the assembly groove 110.

[0028] In this embodiment, the first terminal 20 is a positive power terminal, which is formed of a claw-shaped structure composed of multiple springs. Specifically, the first terminal 20 includes a plurality of first contact portions 21 for contacting the power plug, a plurality of first soldering portions 22 for soldering to the PCB solder wire, and a first connecting portion 23 located between the first contact portions 21 and the first soldering portions 22. The first connecting portion 23 is generally arc-shaped, with the first contact portions 21 evenly spaced along the arc of the first connecting portion 23. The first contact portions 21 are inclined outward from the direction away from the first connecting portion 23, thereby forming an inverted cone shape between the first contact portions 21. In addition, the end of the first contact portion 21 away from the first connecting portion 23 is bent outward to form a first bent cantilever beam spring 211.

[0029] In this embodiment, the second terminal 30 is the negative power terminal. There are two second terminals 30, each of which has a symmetrical sheet-like structure. The second terminal 30 includes a plurality of second contact portions 31 for contacting the power plug, a second soldering portion 32 for soldering to the PCB solder wire, and a second connecting portion 33 located between the second contact portions 31 and the second soldering portion 32. The second contact portions 31 are evenly spaced along the contour of the second connecting portion 33. The end of the second contact portion 31 away from the second connecting portion 33 is bent outward to form a second bent cantilever beam spring 311.

[0030] The signal terminal 40 includes a third contact portion 41 that contacts the power plug, a third welding portion 42 that is welded to the PCB welding wire, and a third connecting portion 43 located between the third contact portion 41 and the third welding portion 42. The third contact portion 41 is arranged in a U-shape, and a contact head 411 protrudes inward from the third contact portion 41.

[0031] The shell 50 is provided with an inner cavity 51 , and a window 52 communicating with the inner cavity 51 is provided on the side of the shell 50 . The shell 50 is also provided with an inwardly bent limiting piece 53 , and the limiting piece 53 is connected to the edge of the window 52 .

[0032] The bottom cover 60 is provided with a plurality of protrusions 61 on one side, and a step groove 63 on the other side. In addition, the bottom cover 60 is further provided with a plurality of insertion holes 62 , which are communicated with the step groove 63 .

[0033] During assembly, the first terminal 20, second terminal 30, and signal terminal 40 are respectively installed on the fixing base 10 from the bottom. The first connecting portion 23 of the first terminal 20 is locked in the first limiting groove 16, the first contact portion 21 of the first terminal 20 extends into the first guide groove 17, and the first bent cantilever beam spring piece 211 on the first contact portion 21 extends into the docking cavity 14. The second connecting portion 33 of the second terminal 30 is locked in the second limiting groove 18, the second contact portion 31 of the second terminal 30 extends into the second guide groove 19, and the second bent cantilever beam spring piece 311 on the second contact portion 31 extends into the docking cavity 14. The third connecting portion 43 and third contact portion 41 of the signal terminal 40 extend into the assembly groove 110, and the contact head 411 on the third contact portion 41 extends into the docking hole 151. The first contact portion 21, with its inverted conical shape, can elastically deform backward when mated with a power plug, thereby pressing the power plug tightly.

[0034] When the shell 50 is installed with the fixing base 10, the limiting piece 53 on the shell 50 slides over the guide surface 131 of the second slot 13 of the fixing base 10 and is stuck in the first slot 12. The top edge of the shell 50 is stuck on the stop portion 11 of the fixing base 10, and the bottom of the fixing base 10 is accommodated in the inner cavity 51 of the shell 50. There is a height difference between the bottom of the fixing base 10 and the bottom of the shell 50.

[0035] When the fixing base 10 and the bottom cover 60 are assembled, the bottom cover 60 extends into the inner cavity 51 of the outer shell 50, and the protrusion 61 of the bottom cover 60 snaps into the fixing base 10. Specifically, part of the protrusion 61 of the bottom cover 60 snaps into the first guide groove 17, and the remaining part of the protrusion 61 of the bottom cover 60 snaps into the second guide groove 19. The first welding portion 22, the second welding portion 32, and the third welding portion 42 pass through the insertion hole 62 and the stepped groove 63 of the base. Finally, waterproof glue is injected into the stepped groove 63. After the waterproof glue hardens, it forms a waterproof layer, which seals the gap between the outer shell 50 and the fixing base 10 and the gap between the terminal and the insertion hole 62.

[0036] The DC power outlet of the present invention has the following beneficial effects: by configuring the first terminal 20 as a claw-shaped structure formed by a plurality of spring clips, the first contact portion 21 is bent outward at one end away from the first connecting portion 23, and the first contact portions 21 on the first terminal 20 are distributed in an inverted cone shape. During assembly, the second terminals 30 are arranged around the periphery of the first terminal 20, achieving vertical overlap. The first contact portion 21 of the first terminal 20 and the second contact portion 31 of the second terminal 30 extend into the docking cavity 14 from both the inside and outside, effectively saving space and reducing the overall volume of the DC power outlet. This has strong practicality and is highly recommended for promotion.

[0037] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A DC power socket, characterized in that: The cam is connected to the second end of the support frame, and the support frame is connected to the second end of the support frame by the spring, and the spring is connected to the second end of the support frame by the spring.

2. The DC power outlet according to claim 1, wherein: The first connecting portion is arranged in an arc shape as a whole, and the first contact portions are evenly spaced along the arc shape of the first connecting portion.

3. The DC power outlet according to claim 1, wherein: A first limiting groove and several second limiting grooves are provided at the bottom of the fixing base, and several first guide grooves and several second guide grooves are also provided on the fixing base. The first guide groove is connected with the first limiting groove and extends to the outer wall of the docking column, and the second guide groove is connected with the second limiting groove and extends to the inner wall of the docking cavity. The first connecting portion of the first terminal is clamped in the first limiting groove, and the first contact portion of the first terminal extends into the first guide groove; the second connecting portion of the second terminal is clamped in the second limiting groove, and the second contact portion of the second terminal extends into the second guide groove.

4. The DC power outlet according to claim 3, wherein: The second limiting grooves are arranged around the outside of the first limiting groove.

5. The DC power outlet according to claim 1, wherein: It also includes a signal terminal, which includes a third contact portion, a third welding portion, and a third connecting portion. The fixing base is also provided with an assembly groove, which extends from the bottom of the fixing base to the interior of the docking column, and the third connecting portion and the third contact portion of the signal terminal extend into the assembly groove.

6. The DC power outlet according to claim 5, characterized in that: The third contact portion is U-shaped, and a contact head is protruding inward from the third contact portion. A docking hole is also provided on the docking column. The docking hole passes downward from the top surface of the docking column, and the docking hole is connected to the assembly groove. The contact head on the third contact portion extends into the docking hole.

7. The DC power outlet according to claim 5, characterized in that: It also includes a shell and a bottom cover, the first terminal, the second terminal, and the signal terminal are clamped between the fixing seat and the base, the bottoms of the first terminal, the second terminal, and the signal terminal pass through the bottom cover, and the shell is sleeved on the outside of the fixing seat and the bottom cover.

8. The DC power outlet according to claim 7, characterized in that: A step groove is provided on one side of the bottom cover, and a plurality of jacks are also provided on the bottom cover, and the jacks are connected to the step groove; the first welding part, the second welding part, and the third welding part pass through the jacks and the step groove of the base, and the DC power socket also includes a waterproof layer, which is arranged in the step groove.

9. The DC power outlet according to claim 7, wherein: A plurality of protrusions are provided on one side of the bottom cover, and the protrusions of the bottom cover are snapped into the fixing seat.

10. The DC power outlet according to claim 1, wherein: The first terminal is a positive power terminal, and the second terminal is a negative power terminal.

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