Power adapter structure and power adapter

Abstract

The utility model provides a power adapter structure and a power adapter, and the power adapter structure comprises a housing which is provided with at least two through holes, the through holes are used for a pin to pass through, the pin is provided with a fixed end and an extension end, and the extension end extends towards one side far away from the housing; the support is arranged on the side, close to the fixed end, of the shell, the support is connected with the pins, and a first buckling groove is formed in the support; and the elastic sheet comprises a conductive part and a first connecting part, the conductive part is used for connecting the pin and the circuit board, and the first connecting part is provided with a first buckle which is clamped and matched with the first buckle groove so as to fixedly connect the support and the elastic sheet. According to the power adapter structure and the power adapter provided by the embodiment of the invention, through the cooperation of the first buckle and the first buckle groove, the fixed connection between the bracket and the elastic sheet is enhanced, the space is saved, and the cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of power adapters, and particularly relates to a power adapter structure and a power adapter. Background Art

[0002] In existing products such as chargers and adapters, the structure for fixing pins usually adopts hot melt columns or riveting methods. For some adapters with foldable pins, since the pins themselves need to rotate and move, the riveting method cannot be used. And the current market demand requires adapter products to have high power and small volume. The existing adapters are limited by space. When using the hot melt method, the hot melt columns will occupy a certain space, and in the processing process, the hot melt nails are prone to unreliable failure, and hot melting requires additional hot melting equipment, resulting in a significant increase in cost.

[0003] All in all, the existing power adapter structures occupy a large space and have a high cost, and cannot meet the current market demand. Utility Model Content

[0004] In view of this, the embodiments of this application provide a power adapter structure and a power adapter to solve the technical problems of large space occupation and high cost of the existing power adapter structures.

[0005] The first aspect of the embodiments of this application provides a power adapter structure, including:

[0006] A housing, provided with at least two through holes for the pins to pass through. The pins have a fixed end and an extending end, and the extending end extends toward the side away from the housing;

[0007] A bracket, disposed on the side of the housing close to the fixed end. The bracket is connected to the pin, and the bracket is provided with a first buckle groove; and

[0008] A spring piece, including a conductive part and a first connecting part. The conductive part is used to connect the pin and the circuit board. The first connecting part is provided with a first buckle that is snap-fitted with the first buckle groove to fixedly connect the bracket and the spring piece.

[0009] In some embodiments, the first connecting part includes a first connecting section and a first bending section. The first connecting section and the first bending section are integrally formed. The first buckles are located on both sides of the first connecting section. The end of the first bending section extends toward the direction away from the first connecting section, and the first bending section is used to abut against the housing to strengthen the connection and cooperation between the spring piece and the bracket.

[0010] In some embodiments, the elastic sheet further includes a second connecting portion disposed toward the direction close to the outer shell. The second connecting portion includes a positioning section, and the positioning section is disposed on the side of the conductive portion and on the same side and / or the opposite side of the first connecting portion with respect to the conductive portion. The positioning section is provided with a second buckle, and the bracket is provided with a positioning hole for the positioning section to pass through and a second buckle groove that is engaged with the second buckle in a snap-fit manner. The second buckle groove is located on the side of the bracket close to the outer shell.

[0011] In some embodiments, there are two positioning sections, and the two positioning sections are located on opposite sides of the conductive portion.

[0012] In some embodiments, the second buckles on the two positioning sections are inclined in a direction approaching each other.

[0013] In some embodiments, one end of the first buckle is connected to the first connecting portion, and the other end of the first buckle is inclined in a direction approaching the first buckle groove.

[0014] In some embodiments, the elastic sheet further includes a third connecting portion disposed toward the direction away from the outer shell, and the third connecting portion is used for abutting and connecting with the circuit board.

[0015] In some embodiments, the third connecting portion includes a second connecting section and a second bending section. One end of the second connecting section is connected to the conductive portion, the other end of the second connecting section is connected to the second bending section, and the second bending section first bends away from the second connecting section and then bends toward the second connecting section.

[0016] In some embodiments, the conductive portion includes a first conductive section and a second conductive section. The first conductive section is used for current conduction with the fixed end of the pin, and the second conductive section is used for current conduction with the circuit board.

[0017] In some embodiments, the bracket is a plastic part, and / or the elastic sheet is a metal part.

[0018] In a second aspect of the embodiments of the present application, a power adapter is provided, including a circuit board and at least two pins. The power adapter further includes the power adapter structure as described in the first aspect, and the pins pass through the outer shell and are connected to the elastic sheet and the bracket.

[0019] The power adapter structure provided in the first aspect of the embodiments of the present application strengthens the fixed connection between the bracket and the elastic piece by opening a first buckle groove on the bracket and providing a first buckle on the elastic piece that is snap-fitted with the first buckle groove. Compared with the existing fixing methods (such as hot melting and riveting), the fixing method of the elastic piece and the bracket adopted in the embodiments of the present application is an inverted buckle assembly design for the elastic piece, which saves space, equipment investment, labor and processing costs.

[0020] Further, the first buckle is a part of the elastic piece, that is, the first buckle and the elastic piece are integrally formed, so no additional material is required and no mold cost needs to be increased.

[0021] It can be understood that the beneficial effects of the above second aspect can be referred to the relevant descriptions in the above first aspect and will not be elaborated here. In addition, the power adapter provided in the embodiments of the present application, while realizing the flexible folding of the plug pins, makes the assembly contact reliability of the power adapter meet the requirements of the product performance, achieving a breakthrough in the production process of this type of product. And it has obvious advantages in terms of the unit price of product parts, equipment savings, process flow and manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0023] Figure 1 is a partial structural schematic diagram of the power adapter provided in the embodiments of the present application Figure 1 ;

[0024] Figure 2 is a partial structural schematic diagram of the power adapter provided in the embodiments of the present application Figure 2 ;

[0025] Figure 3 is Figure 1 the structural schematic diagram of the bracket and the elastic piece in Figure 1 ;

[0026] Figure 4 is Figure 1 the structural schematic diagram of the bracket and the elastic piece in Figure 2 ;

[0027] Figure 5 is Figure 3 the structural schematic diagram of the elastic piece in Figure 1 ;

[0028] Figure 6 isFigure 3 Schematic structure of the elastic piece in Figure 2 ;

[0029] Figure 7 is Figure 3 Schematic structure of the bracket in Figure 1 ;

[0030] Figure 8 is Figure 3 Schematic structure of the bracket in Figure 2 ;

[0031] Figure 9 is the schematic structure of part of the power adapter provided by the embodiment of the present application Figure 3 .

[0032] Reference numerals in the drawings:

[0033] 10. Housing; 100. Receiving groove;

[0034] 20. Bracket; 200. First buckle groove; 201. Second buckle groove; 202. Positioning hole; 21. Positioning rib;

[0035] 30. Elastic piece; 31. Conductive part; 311. First conductive section; 312. Second conductive section; 32. First connecting part; 320. First buckle; 321. First connecting section; 322. First bending section; 33. Second connecting part; 330. Second buckle; 331. Positioning section; 34. Third connecting part; 341. Second connecting section; 342. Second bending section;

[0036] 40. Pin. Detailed implementation manners

[0037] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures, technologies, etc. are presented to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0038] It should also be understood that the term "and / or" as used in the specification and appended claims of the present application refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0041] In addition, in the description of the specification and the appended claims of the present application, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0042] The reference to "one embodiment" or "some embodiments" etc. in the specification of the present application means that specific features, structures or characteristics described in connection with that embodiment are included in one or more embodiments of the present application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "comprising", "including", "having" and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "A plurality" means two or more.

[0043] An embodiment of the present application provides a power adapter structure, as Figures 1 to 4 shown, the power adapter structure includes a housing 10, a bracket 20 and a spring piece 30;

[0044] The housing 10 is provided with at least two through holes for the pins 40 to pass through. The pins 40 have a fixed end and an extension section, and the extension end extends toward the side away from the housing 10;

[0045] The bracket 20 is disposed on one side of the housing 10 close to the fixed end. The bracket 20 is connected to the pin 40, and the bracket 20 is provided with a first buckle groove 200;

[0046] The spring piece 30 includes a conductive part 31 and a first connecting part 32. The conductive part 31 is used to connect the pin 40 and a circuit board (not shown in the figure). The first connecting part 32 is provided with a first buckle 320, and the first buckle 320 is used for snap-fitting with the first buckle groove 200 to fixedly connect the bracket 20 and the spring piece 30.

[0047] The power adapter structure provided in the first aspect of the embodiments of the present application strengthens the fixed connection between the bracket 20 and the elastic piece 30 by providing a first buckle groove 200 on the bracket 20 and a first buckle 320 on the elastic piece 30 that is snap-fitted with the first buckle groove 200. Compared with the existing fixing methods (such as hot melting, riveting, etc.), the fixing method of the elastic piece 30 and the bracket 20 adopted in the embodiments of the present application is an inverted buckle assembly design for the elastic piece 30, which saves space, equipment investment, labor and processing costs.

[0048] In applications, such as Figure 5 and Figure 6 shown, the first buckle 320 belongs to a part of the elastic piece 30, that is, the first buckle 320 and the elastic piece 30 are integrally formed, so no additional materials are required and no mold costs need to be increased. As Figure 7 and Figure 8 shown, the first buckle groove 200 is specifically provided on the side wall of the bracket 20, and the first connecting portion 32 is arranged towards the extending end of the pin 40, so it is located on the side wall of the bracket 20. Providing the first buckle groove 200 on the side wall of the bracket 20 is beneficial to reducing the occupied volume of the elastic piece 30 and can also realize the fixed connection between the bracket 20 and the elastic piece 30. In some embodiments, the elastic piece 30 is a metal part and the bracket 20 is a plastic part. There will be no rigid wear between the metal part and the plastic part, and the plastic part is relatively soft, which is beneficial to strengthening the connection strength between the two. The elastic piece 30 can be a copper sheet, alloy, iron sheet or other conductive metal sheets. On the one hand, it can have the function of conducting electricity, and on the other hand, the metal part has stronger rigidity and better self-stability, which is beneficial to improving the connection strength inside the power adapter structure.

[0049] In applications, in some embodiments, the elastic piece 30 has the following functions in the power adapter structure:

[0050] Firstly, it ensures good electrical connection. Especially in the plug part of the power adapter, the elastic piece 30 can be used as a part of the pin 40. When inserted into the socket, the elastic piece 30 is in close contact with the contact piece in the socket through its own elastic deformation, ensuring that the current can pass stably. Secondly, it improves durability. The elastic piece 30 can withstand multiple insertions and extractions without losing its elastic characteristics, thus extending the service life of the power adapter. Thirdly, it provides safety protection. In some designs, the elastic piece 30 may also be used for grounding or shielding of the internal circuit board to reduce electromagnetic interference and improve safety. Fourthly, it has a mechanical fixing function (i.e., the main function in the embodiments of the present application). Inside the power adapter structure, the elastic piece 30 is sometimes also used to fix certain components, such as fixing the circuit board inside the adapter housing 10 or fixing the heat sink, etc. Fifthly, it helps with pressure adjustment. In some cases, the elastic piece 30 can also help adjust the pressure between the internal components to ensure reliable connection.

[0051] In some embodiments, as Figures 3 to 6 shown, there are multiple first buckling grooves 200. Similarly, there are also multiple first buckles 320 that are snap-fitted with the first buckling grooves 200. In a preferred embodiment, there are two first buckling grooves 200 and two first buckles 320, and the two first buckles 320 are located on both sides of the first connecting portion 32. This is beneficial to improving the connection stability between the elastic piece 30 and the bracket 20.

[0052] Furthermore, one end of the first buckle 320 is connected to the first connecting portion 32, and the other end of the first buckle 320 is inclined towards the direction close to the first buckling groove 200. In this way, the first buckle 320 abuts against the side wall of the first buckling groove 200, thereby realizing the buckling connection, and finally realizing the fixation of the elastic piece 30 and the bracket 20.

[0053] In some embodiments, as Figure 5 and Figure 6 shown, the first connecting portion 32 includes a first connecting section 321 and a first bending section 322. The first connecting section 321 and the first bending section 322 are integrally formed. The first buckles 320 are located on both sides of the first connecting section 321. The end of the first bending section 322 extends towards the direction away from the first connecting section 321. The first bending section 322 is used to abut against the outer shell 10 to reinforce the connection and cooperation between the elastic piece 30 and the bracket 20. As Figure 2 and Figure 4 shown, one end of the first bending section 322 is connected to the first connecting section 321, and the other end of the first bending portion extends towards the direction away from the first connecting section 321. Moreover, the first bending section 322 first bends towards the direction away from the first connecting section 321, and then the end portion bends towards the direction close to the first connecting section 321, and the first bending section 322 and the first connecting section 321 are connected in a V shape. Therefore, when the end of the first bending section 322 abuts against the inner side wall of the outer shell 10, it will give a squeeze to the first bending portion, so that the elastic piece 30 has a force towards the direction close to the bracket 20, thereby making the first buckle 320 on the first connecting section 321 abut against the first buckling groove 200 more tightly, and finally improving the connection and cooperation strength between the elastic piece 30 and the bracket 20.

[0054] In some embodiments, as Figures 3 to 6 shown, the elastic piece 30 further includes a second connecting portion 33 that is arranged towards the direction close to the outer shell 10. The second connecting portion 33 includes a positioning section 331. The positioning section 331 is arranged on the side of the conductive portion 31 and is on the same side of the conductive portion 31 as the first connecting portion 32. The positioning section 331 is provided with a second buckle 330. The bracket 20 is provided with a positioning hole 202 for the positioning section 331 to pass through and a second buckling groove 201 that is snap-fitted with the second buckle 330. The second buckling groove 201 is located on the side of the bracket 20 close to the outer shell 10.

[0055] In some embodiments, the depth of the first engaging groove 200 is not less than 0.5 mm. This can ensure the snap fit between the first snap 320 and the first engaging groove 200. In some embodiments, the depth of the first engaging groove 200 is not less than 0.8 mm. The depth of the second engaging groove 201 is not less than 0.5 mm. In some embodiments, the depths of the first engaging groove 200 and the second engaging groove 201 are any value greater than or equal to 0.5 mm, such as 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 1.0 mm, etc.

[0056] In some other embodiments, the positioning section 331 and the first connecting portion 32 are on opposite sides of the conductive portion 31. In some embodiments, there are multiple positioning sections 331, at least one of the positioning sections 331 and the first connecting portion 32 are on the same side of the conductive portion 31, and at least one of the positioning sections 331 and the first connecting portion 32 are on opposite sides of the conductive portion 31. In a preferred embodiment, there are two positioning sections 331, and the two positioning sections 331 are on opposite sides of the conductive portion 31. In this way, the connection and cooperation between the elastic piece 30 and the bracket 20 can be strengthened and fixed from different directions. In some embodiments, the second snaps 330 on the positioning section 331 are inclined in a direction approaching each other. That is, the second snaps 330 extend inward, which effectively reduces the space occupancy rate compared with extending outward.

[0057] In application, the cooperation between the second connecting portion 33 and the first connecting portion 32 can strengthen the connection stability between the elastic piece 30 and the bracket 20. Moreover, through the arrangement of the positioning section 331, it is beneficial to quickly position and quickly install the elastic piece 30. The second snaps 330 are arranged on the positioning section 331 and cooperate with the second engaging groove 201 to further strengthen the fixed connection between the elastic piece 30 and the engaging groove.

[0058] In application, the setting of the second snap 330 is the same as that of the first snap 320, and both belong to a part of the elastic piece 30. Such a design is beneficial to improving the stability among the first snap 320, the second snap 330 and the elastic piece 30 on the one hand. On the other hand, when manufacturing the elastic piece 30, there is no need to increase the mold cost, which is beneficial to the production and preparation of the elastic piece 30.

[0059] In some embodiments, such as Figures 3 to 6As shown, the elastic piece 30 further includes a third connecting portion 34 disposed in a direction away from the outer shell 10, and the third connecting portion 34 is used to abut and connect with the circuit board. The elastic piece 30 functions as a current-conducting pin 40 and the circuit board in this embodiment of the present application, and also fixes and strengthens the connection between the two. Therefore, the elastic piece 30 is fixedly connected to the bracket 20, the pin 40 is connected to the bracket 20 and the outer shell 10, the circuit board is disposed in the outer shell 10, and the third connecting portion 34 is used to fix the elastic piece 30 to the circuit board, so that the pin 40 is electrically connected to the circuit board through the conductive portion 31 of the elastic piece 30.

[0060] In some embodiments, as Figures 3 to 6 shown, the third connecting portion 34 includes a second connecting section 341 and a second bending section 342. One end of the second connecting section 341 is connected to the conductive portion 31, the other end of the second connecting section 341 is connected to the second bending section 342, and the second bending section 342 first bends in a direction away from the second connecting section 341 and then bends in a direction close to the second connecting section 341. In this way, it is avoided that the end of the second bending section 342 directly abuts against the circuit board and causes a rigid collision, thereby effectively avoiding the circuit board being damaged by friction with the elastic piece 30.

[0061] In some embodiments, as Figure 8 shown, a plurality of positioning ribs 21 are provided on the side of the bracket 20 away from the elastic piece 30 to connect the pin 40. This facilitates the positioning and installation of the pin 40.

[0062] In some embodiments, as Figures 3 to 6 shown, the conductive portion 31 includes a first conductive section 311 and a second conductive section 312. The first conductive section 311 is used for current conduction with the fixed end of the pin 40, and the second conductive section 312 is used for current conduction with the circuit board.

[0063] In some embodiments, as Figure 9 shown, the pin 40 is rotatably disposed on the bracket 20, and a receiving groove 100 is provided on the side of the outer shell 10 away from the bracket 20. The receiving groove 100 is used to receive the rotatably folded pin 40. In one embodiment, there are two pins 40 and two receiving grooves 100, and one receiving groove 100 is provided corresponding to one pin 40 to receive the rotatably folded pin 40 to hide the pin 40, thereby avoiding the pin 40 scratching other objects.

[0064] The embodiment of the present application further provides a power adapter, including the foldable plug structure described in the first aspect, a circuit board (not shown in the figure), and at least two pins 40. The pins 40 penetrate through the outer shell 10 and are connected to the elastic piece 30 and the bracket 20.

[0065] The power adapter provided by the embodiment of the present application, while enabling the flexible folding of the pin 40, makes the assembly contact reliability of the power adapter meet the requirements of product performance, achieving a breakthrough in the production process of this type of product. Moreover, it has obvious advantages in terms of the unit price of product parts, equipment savings, process flow, and manufacturing cost.

[0066] In applications, the power adapter includes but is not limited to mobile phone chargers, power adapters for computers, plugs for various electrical appliances, etc. In particular, chargers for some portable electronic products, such as chargers for small fans, power banks, mobile phones, tablets, laptop computers, and other electronic products.

[0067] In the above embodiments, the descriptions of each embodiment have their own focuses. For parts not detailed or recorded in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0068] The above-described embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of the present application, and should all be included in the protection scope of the present application.

Claims

1. A power adapter structure, characterized in that: include: The housing is provided with at least two through holes, wherein the through holes are used for the pins to pass through, and the pins have a fixed end and an extended end, and the extended end extends toward a side away from the housing; A bracket, disposed on a side of the housing close to the fixed end, the bracket being connected to the pin and having a first buckle groove; and The spring sheet comprises a conductive portion and a first connecting portion, wherein the conductive portion is used to connect the pin and the circuit board, and the first connecting portion is provided with a first buckle for engaging with the first buckle groove to fix the bracket and the spring sheet.

2. The power adapter structure according to claim 1, characterized in that: The first connecting portion includes a first connecting section and a first bending section, the first connecting section and the first bending section are integrally formed, the first buckle is located on both sides of the first connecting section, the end of the first bending section extends in a direction away from the first connecting section, and the first bending section is used to abut against the outer shell to strengthen the connection and cooperation between the spring sheet and the bracket.

3. The power adapter structure according to claim 1, characterized in that: The spring piece also includes a second connecting portion arranged in a direction close to the shell, the second connecting portion includes a positioning segment, the positioning segment is arranged on the side of the conductive portion, and is located on the same side and / or different side of the conductive portion as the first connecting portion, the positioning segment is provided with a second buckle, the bracket is provided with a positioning hole for the positioning segment to pass through, and a second buckle groove that is engaged with the second buckle, and the second buckle groove is located on a side of the bracket close to the shell.

4. The power adapter structure according to claim 3, characterized in that: There are two positioning segments, and the two positioning segments are located at opposite sides of the conductive part.

5. The power adapter structure according to claim 4, characterized in that: The second buckles on the two positioning segments are arranged to be inclined in a direction of approaching each other; And / or, one end of the first buckle is connected to the first connecting portion, and the other end of the first buckle is inclined toward a direction close to the first buckle groove.

6. The power adapter structure according to claim 3, characterized in that: The spring sheet further includes a third connection portion disposed in a direction away from the housing, and the third connection portion is used for abutting and connecting with the circuit board.

7. The power adapter structure according to claim 6, characterized in that: The third connecting portion includes a second connecting segment and a second bending segment, one end of the second connecting segment is connected to the conductive portion, the other end of the second connecting segment is connected to the second bending segment, and the second bending segment is first bent in a direction away from the second connecting segment and then bent in a direction close to the second connecting segment.

8. The power adapter structure according to claim 1, characterized in that: The conductive portion includes a first conductive segment and a second conductive segment, wherein the first conductive segment is used for current conduction with a fixed end of the pin, and the second conductive segment is used for current conduction with the circuit board.

9. The power adapter structure according to any one of claims 1 to 8, characterized in that: The bracket is a plastic part, and / or the spring piece is a metal part; The depth of the first buckle groove is not less than 0.5 mm.

10. A power adapter, comprising a circuit board and at least two pins, characterized in that: The power adapter also includes a power adapter structure as described in any one of claims 1 to 9, wherein the plug passes through the housing and is connected to the spring sheet and the bracket.

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