Elastic sheet and power adapter

Abstract

The utility model relates to an elastic sheet and a power adapter, the elastic sheet comprises an elastic sheet main body, a fixing part and a clamping part, the fixing part and the clamping part are both connected with the elastic sheet main body, and the clamping part comprises a first clamping part and a second clamping part; wherein the fixing part is used for connecting the elastic sheet and the PCB, the first clamping part is used for clamping a conductive area of the pin, and the second clamping part is used for clamping an insulating area of the pin. According to the utility model, the technical problems of welding difficulty, high cost, poor stability and relatively high short circuit risk caused by adopting a direct welding mode between the pins and the PCB are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric component technical field further, relate to a spring piece and power adapter, especially relate to a spring piece and power adapter for connecting PIN foot and PCB board. BACKGROUND

[0002] Power adapter is the power conversion equipment for electronic equipment and electronic power supply. Power adapter generally includes shell, pin and PCB board and other components, wherein PCB board and part of pin are arranged in the shell, and another part of pin needs to be stretched to the outside of the shell for connecting with external power supply, therefore, pin needs to be connected with PCB board and be conducted. In the existing power adapter, L, N line between pin and PCB board is connected through artificial welding, then artificial dispensing is carried out to fix and insulate, and the mode has the problems of welding difficulty, high welding labor cost and tin welding residue; in addition, welding stability between pin and PCB board is poor, and welding spot is easy to pierce electronic circuit and cause short circuit risk.

[0003] Therefore, the utility model provides a spring piece and power adapter to overcome at least one of the above technical problems. SUMMARY

[0004] The utility model discloses a spring piece, which is fixed on a PCB board, realizes conduction of a pin and the PCB board through a first clamping part, and guarantees fastening clamping of the spring piece and the pin through a second clamping part. The spring piece can be directly clamped and assembled with the pin during installation without other processes, which is convenient to assemble, reduces labor cost, and improves assembly efficiency.

[0005] Another object of the utility model is to provide a power adapter, which has a conductive area and an insulating area. The insulating area can effectively prevent accidental electric shock and improve safety during use and assembly.

[0006] The object of the utility model can be achieved by the following scheme:

[0007] The utility model provides a spring piece, which is used for connecting and conducting a PCB board and a pin. The spring piece comprises:

[0008] A spring piece body, a fixing part, and a clamping part, wherein the fixing part and the clamping part are connected with the spring piece body, and the clamping part comprises a first clamping part and a second clamping part.

[0009] The fixing part is used for connecting the spring piece and the PCB board, the first clamping part is used for clamping a conductive area of the pin, and the second clamping part is used for clamping an insulating area of the pin.

[0010] In a preferred embodiment of the utility model, the elastic sheet body has opposite first end and second end, the fixed part is located at the first end, and the clamping part is located at the second end.

[0011] In a preferred embodiment of the utility model, the first clamping part includes two first elastic clamping pieces for cooperation clamping, and the two first elastic clamping pieces are used for cooperation clamping the conductive area.

[0012] In a preferred embodiment of the utility model, the second clamping part includes two second elastic clamping pieces for cooperation clamping, and the two second elastic clamping pieces are used for cooperation clamping the insulating area.

[0013] In a preferred embodiment of the utility model, the clamping part further includes third clamping part, the third clamping part includes two third elastic clamping pieces for cooperation clamping, and the two third elastic clamping pieces are used for cooperation clamping the insulating area.

[0014] And / or, the clamping part further includes fourth clamping part, the fourth clamping part includes two fourth elastic clamping pieces for cooperation clamping, and the two fourth elastic clamping pieces are used for cooperation clamping the insulating area.

[0015] In a preferred embodiment of the utility model, the clamping part includes the third clamping part and the fourth clamping part, the first clamping part, the third clamping part and the fourth clamping part are arranged in the same direction, the first clamping part is arranged between the third clamping part and the fourth clamping part, and the first clamping part, the third clamping part and the fourth clamping part are arranged back to the second clamping part.

[0016] In a preferred embodiment of the utility model, the fixed part includes a welding leg, and the elastic sheet body is welded to the PCB board through the welding leg.

[0017] In a preferred embodiment of the utility model, the first end has a contact surface matched with the board surface of the PCB board, the fixed part includes a welding leg, the welding leg is used for welding with the PCB board, and the contact surface is attached to the board surface of the PCB board.

[0018] The utility model provides a kind of power adapter, and the power adapter includes:

[0019] The elastic sheet described above;

[0020] Shell and pin, the pin is partially located in the shell, the part of the pin in the shell has conductive area and insulating area, the first clamping part of the elastic sheet is clamped in the conductive area, and the second clamping part of the elastic sheet is clamped in the insulating area;

[0021] A PCB board is arranged in the shell, and the pin is in conduction with the PCB board through the elastic sheet.

[0022] In a preferred embodiment of the present application, the insulating region is a body part of the pin located in the shell and provided with an insulating layer, and the conductive region is a body part of the pin located in the shell and not provided with the insulating layer.

[0023] As described above, the present application has the following characteristics and advantages:

[0024] The fixing part and the clamping part are arranged on the elastic sheet body, the elastic sheet body is connected with the PCB board through the fixing part, in the case that the elastic sheet body, the PCB board and the pin are assembled in place, the clamping part is located on the side close to the pin, and the conductive region of the pin can be clamped by the first clamping part in the clamping part, so that the conduction between the PCB board and the pin is realized through the elastic sheet, and the clamping effect of the first clamping part can also stabilize the connection state of the elastic sheet and the pin to a certain extent; in addition, the insulating region of the pin is clamped by the second clamping part in the clamping part, so that the stable connection between the elastic sheet and the pin is realized, and the stable connection state of the pin and the PCB board can be ensured without welding.

[0025] The present application has the advantages of simple structure, convenient disassembly and assembly, low defective rate, reduced labor cost, and improved production and assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] The following drawings are only intended to illustrate and explain the present application, and do not limit the scope of the present application. Among them:

[0027] Figure 1 is a perspective view of the elastic sheet of the present application;

[0028] Figure 2 is a second perspective view of the elastic sheet of the present application;

[0029] Figure 3 is a front view of the elastic sheet of the present application;

[0030] Figure 4 is a right view of the elastic sheet of the present application;

[0031] Figure 5 is a schematic view of the internal structure of the power adapter of the present application;

[0032] Figure 6 is a schematic view of the structure of the shell of the power adapter of the present application in a split state;

[0033] Figure 7It is partial enlarged view of A position in the power adapter;

[0034] Figure 8 It is sectional view of the power adapter near the pin position one;

[0035] Figure 9 It is partial enlarged view of A position in the power adapter; Figure 8

[0036] Figure 10 It is sectional view of the power adapter near the pin position two;

[0037] Figure 11 It is partial enlarged view of B position in the power adapter. Figure 10

[0038] The utility model discloses the following figure number:

[0039] 1, spring piece; 101, spring piece main part;

[0040] 102, first clamping portion; 103, second clamping portion;

[0041] 104, fixed part; 105, contact surface;

[0042] 106, third clamping portion; 107, fourth clamping portion;

[0043] 2, pin;

[0044] 201, insulating area; 202, conductive area;

[0045] 3, shell;

[0046] 4, PCB board. Specific implementation

[0047] The technical scheme of the utility model will be explained in detail in combination with the drawings and specific embodiments, and it should be understood that these embodiments are only for explaining the utility model and are not for limiting the scope of the utility model, and after reading the utility model, the modification of various equivalent forms of the utility model by the person skilled in the art falls within the range defined in the claims attached to the present application.

[0048] It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can be a middle element present. When an element is referred to as "connected" to another element, it can be directly connected to the other element or there can be a middle element present.

[0049] ​​Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0050] The words such as "upper", "lower", "left", "right", "top", "bottom" and the like in the utility model have the words of indicating direction, all take Figure 3 the direction of "upper", "lower", "left", "right", "top", "bottom" and the like in the utility model as the criterion, which is intended to more clearly and explicitly explain the structure of the sheet and the power adapter, and is not limited to the actual direction of the product, which is described herein.

[0051] Embodiment one

[0052] As Figures 1 to 11 shown, the utility model provides a sheet 1, this sheet 1 is used to connect and conduct PCB board 4 and pin (PIN pin) 2, and this sheet 1 includes sheet main body 101, fixed part 104 and clamping part, and fixed part 104 and clamping part are connected with sheet main body 101. Wherein, clamping part includes first clamping part 102 and second clamping part 103, and fixed part 104 is arranged at sheet main body 101, and fixed part 104 is used to connect with PCB board 4, and first clamping part 102 and second clamping part 103 are arranged at sheet main body 101 respectively, wherein, fixed part 104 is used to connect sheet 1 and PCB board 4, and first clamping part 102 is used to clamp the conductive area 202 of pin 2, and second clamping part 103 is used to clamp the insulating area 201 of pin 2.

[0053] In the utility model, fixed part 104 and clamping part are arranged on sheet main body 101, and sheet main body 101 is connected with PCB board 4 through fixed part 104, in the case that sheet main body 101, PCB board 4 and pin 2 are assembled in place, clamping part is located at the side close to pin 2, and the conductive area 202 of pin 2 can be clamped through first clamping part 102 in clamping part, so that the conduction (that is, the current can be conducted) of PCB board 4 and pin 2 is realized through sheet 1, and the clamping action of first clamping part 102 can also stabilize the connection state of sheet 1 and pin 2 to a certain extent, in addition, the insulating area 201 of pin 2 is clamped through second clamping part 103 in clamping part, further ensure the stable connection (fastening clamping) of sheet 1 and pin 2, without welding, the stable connection state of pin 2 and PCB board 4 can be ensured.

[0054] The utility model discloses a simple structure, and because the elastic sheet 1 and the pin 2 adopt the clamping mode to connect, it is more convenient to disassemble, does not need other working procedure, and the defective rate is low, and the manpower time cost can be reduced, and production, assembly efficiency are improved.

[0055] In an optional embodiment of the utility model, as shown in the figure, Figures 1 to 4 The elastic sheet main body 101 has opposite first end and second end, when the elastic sheet main body 101, PCB board 4 and pin 2 are connected, the first end is attached to the board face of PCB board 4, and the second end extends to the position close to the pin 2. Among them, the fixed part 104 is located at the first end, and the first clamping part 102 and the second clamping part 103 are both located at the second end.

[0056] Specifically, the elastic sheet main body 101 can be formed by bending a long strip-shaped elastic sheet at the middle position, and the bending position in the middle is the first end (i.e. Figures 1 to 4 the bottom end) of the elastic sheet main body 101, and after bending, the two end portions of the long strip-shaped elastic sheet are located at parallel or approximately parallel positions, and the two end portions of the long strip-shaped elastic sheet are the second end (i.e. Figures 1 to 4 the top end) of the elastic sheet main body 101.

[0057] In an optional embodiment of the utility model, as shown in the figure, Figures 1 to 4 The first clamping part 102 includes two first elastic clamping pieces for clamping, and the two first elastic clamping pieces are respectively located at the two end portion positions of the original long strip-shaped elastic sheet, and on the elastic sheet main body 101 after bending, the two first elastic clamping pieces are opposite and can clasp each other, and when the elastic sheet main body 101, PCB board 4 and pin 2 are connected, the two first elastic clamping pieces are respectively located on the left and right sides of the conductive area 202 and clamped on the conductive area 202. Among them, the area of the first elastic clamping piece is the same as or approximately the same as the conductive area 202, so as to ensure that the first elastic clamping piece can fully contact the conductive area 202, and achieve the effect of stable conduction.

[0058] In an optional embodiment of the utility model, as shown in the figure, Figures 1 to 4 The second clamping part 103 includes two second elastic clamping pieces for clamping, and the two second elastic clamping pieces are respectively located at the two end portion positions of the original long strip-shaped elastic sheet, and on the elastic sheet main body 101 after bending, the two second elastic clamping pieces are opposite and can clasp each other, and when the elastic sheet main body 101, PCB board 4 and pin 2 are connected, the two second elastic clamping pieces are respectively located on the left and right sides of the insulating area 201 and clamped on the insulating area 201. Among them, the area of the second elastic clamping piece is greater than the area of the first elastic clamping piece, so as to ensure that the second elastic clamping piece can stably clamp the insulating area 201, and further ensure the stability of the clamping of the elastic sheet 1 and the pin 2.

[0059] In the embodiment, the first clamping part 102 and the second clamping part 103 are arranged oppositely, that is, as shown in the figure Figure 3 In the embodiment, the second clamping part 103 is located at the front side (towards the direction of the outer side of the paper), and the first clamping part 102 is located at the rear side (towards the direction of the inner side of the paper).

[0060] In an optional embodiment of the utility model, as shown in the figure Figures 1 to 4 The clamping part further comprises a third clamping part 106, the third clamping part 106 comprises two third elastic clamping pieces for cooperation clamping, the two third elastic clamping pieces are respectively located at the two end positions of the original long strip-shaped elastic piece, on the elastic piece main body 101 after bending forming, the two third elastic clamping pieces are opposite and can mutually cooperate clamping, when the elastic piece main body 101, the PCB board 4 and the pin 2 are in the connected state, the two third elastic clamping pieces are respectively located at the left and right sides of the insulating area 201 and are cooperatively clamped in the insulating area 201.

[0061] Further, as shown in the figure Figures 1 to 4 The clamping part further comprises a fourth clamping part 107, the fourth clamping part 107 comprises two fourth elastic clamping pieces for cooperation clamping, the two fourth elastic clamping pieces are respectively located at the two end positions of the original long strip-shaped elastic piece, on the elastic piece main body 101 after bending forming, the two fourth elastic clamping pieces are opposite and can mutually cooperate clamping, when the elastic piece main body 101, the PCB board 4 and the pin 2 are in the connected state, the two fourth elastic clamping pieces are respectively located at the left and right sides of the insulating area 201 and are cooperatively clamped in the insulating area 201.

[0062] When the clamping part simultaneously comprises the third clamping part 106 and the fourth clamping part 107, the first clamping part 102, the third clamping part 106 and the fourth clamping part 107 are arranged in the same direction, the first clamping part 102 is arranged between the third clamping part 106 and the fourth clamping part 107, and the first clamping part 102, the third clamping part 106 and the fourth clamping part 107 are arranged oppositely with the second clamping part 103.

[0063] In the embodiment, as shown in the figure Figures 1 to 4 The third clamping part 106 is arranged above the first clamping part 102, and the fourth clamping part 107 is arranged below the first clamping part 102, when the elastic piece main body 101, the PCB board 4 and the pin 2 are in the connected state, the third clamping part 106 and / or the fourth clamping part 107 are clamped and fixed with the insulating area 201 of the pin 2, further improving the stability of the clamping of the elastic piece 1 and the pin 2.

[0064] In an optional embodiment of the utility model, as shown in the figure Figures 1 to 4As shown, the fixing part 104 includes a soldering leg, and the spring piece body 101 is welded with the PCB 4 through the soldering leg. The soldering leg can be two spaced apart soldering legs to ensure the stability of the welding. Of course, the fixing part 104 can also be other connecting members or connecting structures, which can realize the stable connection of the spring piece body 101 and the PCB 4 and ensure good conduction effect.

[0065] Further, as shown in the drawings, Figures 1 to 7 As shown, the first end has a contact surface 105 matched with the surface of the PCB 4, and the fixing part 104 includes a soldering leg. When the soldering leg on the spring piece 1 is welded with the PCB 4, the spring piece 1 is attached to the surface of the PCB 4 through the contact surface 105, so as to ensure the stable connection of the spring piece 1 and the PCB 4 and ensure the stable conduction state.

[0066] In the utility model, for the pin 2 of different national standards, the welding position of the spring piece 1 and the PCB 4 and / or the size of the spring piece 1 can be adjusted to adapt to different PIN distances and meet the assembly requirements.

[0067] The spring piece of the utility model has the following characteristics and advantages:

[0068] I. The spring piece is clamped and fixed with the pin 2, without other processes, reducing the labor cost and time, and being applicable to automatic assembly production, improving the assembly and production efficiency.

[0069] II. The spring piece does not need manual dispensing and manual welding operation in the assembly process, saving the labor cost and time, preventing tin residue and improving the quality of the assembled product.

[0070] III. The spring piece can adapt to the pin 2 of different national standards to adapt to different PIN distances, meet the assembly requirements and have better applicability.

[0071] Embodiment two

[0072] As shown in the drawings, Figures 5 to 11 The utility model provides a power adapter, the power adapter includes spring piece 1, shell 3, pin 2 and PCB 4, the pin 2 is partially located in the shell 3, the part of the pin 2 in the shell 3 has conducting area 202 and insulating area 201, the first clamping part 102 of spring piece 1 is clamped in conducting area 202, and the second clamping part 103 of spring piece 1 is clamped in insulating area 201, the PCB 4 is arranged in the shell 3, the pin 2 is conducted with the PCB 4 through spring piece 1, and the PCB 4 and the pin 2 have stable conduction state through spring piece 1.

[0073] In the utility model, the pin 2 is an AC pin.

[0074] In an optional embodiment of the utility model, as shown in the drawings,Figures 8 to 11 As shown in the drawings, the insulating area 201 is the body part of the pin 2 located in the shell 3 and provided with an insulating layer, and the conductive area 202 is the body part of the pin 2 located in the shell 3 and not provided with an insulating layer. In the prior structure, the part of the pin 2 located in the shell 3 (i.e. the tail of the PIN) is not provided with an insulating layer, and the body part of the pin 2 with the conductive function is directly exposed to the outside, which can conduct electricity in the clamping and fixing state with the spring piece 1, but if the upper and lower covers of the shell 3 are separated, the pin 2 is still plugged into the power socket (i.e. in the conductive state), at which time the danger of accidental electric shock of personnel is prone to occur. By the provision of the insulating layer, even if the lower cover of the shell 3 is opened, the situation of accidental electric shock of personnel can be effectively prevented, and the safety in use and assembly process is improved.

[0075] Further, the insulating layer can be but is not limited to a rubber coating layer provided on the outer wall of the body part of the pin 2.

[0076] Further, as shown in the drawings, Figure 8 and Figure 9 The pin 2 can be a cylindrical pin, of course, as shown in the drawings, Figure 10 and Figure 11 The pin 2 can also be a flat cylindrical pin.

[0077] The power adapter of the utility model has the characteristics and advantages that:

[0078] In the power adapter, the insulating layer is arranged at the tail of the pin 2 to form the insulating area 201, and the conductive area 202 is arranged on the insulating layer, which plays an effective insulation role, effectively reduces the risk of accidental electric shock of personnel, and ensures the safety in use.

[0079] In addition, the power adapter of the utility model has the same characteristics and advantages as the spring piece 1 described above, which will not be described here.

[0080] It should be noted that in the description of the present application, the terms "first", "second" and the like are only used for description purposes and to distinguish similar objects, and there is no sequence between them, nor can it be understood or implied as relative importance. In addition, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0081] The above various embodiments in the specification are described in a progressive manner, and the same and similar parts between the various embodiments can be referred to each other, and each embodiment mainly explains the difference from other embodiments.

[0082] The above are only several embodiments of the present application, although the embodiments disclosed by the present application are as above, the content is only the adopted embodiments for facilitating the understanding of the present application, and is not used for limiting the present application. Any person skilled in the art of the present application can make any modification and change in the form and details of the embodiments without departing from the spirit and scope of the present application, but the patent protection scope of the present application still needs to be limited by the scope defined by the appended claims.

Claims

1. A spring contactor, said spring contactor being used to connect and conduct electricity between a PCB board and a pin, characterized in that, The spring clip includes: The spring body comprises a fixing part and a clamping part, wherein the fixing part and the clamping part are both connected to the spring body, and the clamping part includes a first clamping part and a second clamping part. The fixing part is used to connect the spring and the PCB board, the first clamping part is used to clamp the conductive area of ​​the pin, and the second clamping part is used to clamp the insulating area of ​​the pin.

2. The spring clip as described in claim 1, characterized in that, The spring body has a first end and a second end, with the fixing part located at the first end and the clamping part located at the second end.

3. The spring clip as described in claim 2, characterized in that, The first clamping part includes two first elastic clamping pieces that cooperate to clamp the conductive area.

4. The spring clip as described in claim 2, characterized in that, The second clamping part includes two second elastic clamping pieces that cooperate to clamp the insulating area.

5. The spring clip as described in any one of claims 1 to 4, characterized in that, The clamping part further includes a third clamping part, which includes two third elastic clamping pieces that cooperate to clamp the insulating area. And / or, the clamping part further includes a fourth clamping part, the fourth clamping part including two fourth elastic clamping pieces that cooperate to clamp the insulating area.

6. The spring clip as described in claim 5, characterized in that, The clamping part includes the third clamping part and the fourth clamping part. The first clamping part, the third clamping part and the fourth clamping part are arranged in the same direction. The first clamping part is disposed between the third clamping part and the fourth clamping part. The first clamping part, the third clamping part and the fourth clamping part are all arranged opposite to the second clamping part.

7. The spring clip as described in claim 1 or 2, characterized in that, The fixing part includes a welding foot, and the spring body is welded to the PCB board through the welding foot.

8. The spring clip as described in claim 2, characterized in that, The first end has a contact surface that mates with the surface of the PCB board, and the fixing part includes a solder foot for soldering to the PCB board, and the contact surface is in contact with the surface of the PCB board.

9. A power adapter, characterized in that, The power adapter includes: The spring sheet according to any one of claims 1 to 8; A housing and pins, wherein the pin portion is located within the housing, the portion of the pin located within the housing having a conductive area and an insulating area, a first clamping portion of the spring clip clamps the conductive area, and a second clamping portion of the spring clip clamps the insulating area; A PCB board is disposed inside the housing, and the pins are connected to the PCB board through the spring contacts.

10. The power adapter as described in claim 9, characterized in that, The insulating region is the body portion where the pin is located inside the housing and has an insulating layer, and the conductive region is the body portion where the pin is located inside the housing and does not have the insulating layer.

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