Protective elastic sheet

Abstract

The utility model discloses a protective elastic sheet, which comprises a fixed part, side protective arms, an elastic arm and a protective arm, the side protective arms are respectively connected to two opposite sides of the fixed part and define a limiting groove together with the fixed part, and one end of the elastic arm is connected to the fixed part and is bent relative to the fixed part; the elastic arm is located in the limiting groove and can move relative to the fixing part so as to be close to or away from the fixing part. One end of the elastic arm away from the fixed part is connected with a contact part, the other end of the contact part is connected with a protective arm, and one surface of the contact part back to the fixed part is provided with a contact surface; the protection arm is located in the limiting groove and moves relative to the fixed part. The limiting wing parts and the limiting holes are combined for use, so that elastic limit deformation or tearing when the elastic arms and the contact parts are stressed in the vertical direction and the horizontal direction is prevented, and the overall structural strength of the protective elastic piece is improved. Due to the existence of the protective arms, the assembling and disassembling sequence of the matching devices can be freely selected, so that the assembling and disassembling efficiency and the yield of the matching devices are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of electronic equipment, and in particular to a protective spring clip. Background Technology

[0002] With the rapid development of electronic technology, various electronic products are being used more and more widely, and their functions are constantly being improved. However, the tactile mechanisms used in some electronic devices currently require three components to be assembled, one of which is a spring-loaded compression pin. The disadvantages of this combined structure are that it is complex, costly, occupies a lot of space, is inconvenient to assemble, has low production efficiency, and is also inconvenient to connect to the circuit board, making it easy to fall off.

[0003] For example, existing technology, such as Chinese utility model patent with publication number CN218482434U, describes an antenna spring, which includes: a support part, two protective arms, an elastic arm, and a protective arm. The two protective arms are respectively connected to opposite sides of the support part and together with the support part form a limiting groove. One end of the elastic arm is connected to the support part and bends relative to the support part. The elastic arm is located in the limiting groove and can move relative to the support part to move closer to or away from the support part. The end of the elastic arm away from the support part is a free end, and the free end is connected to a contact part. The side of the contact part facing away from the support part is a contact surface, and the contact surface is a plane. The elastic arm includes a first arc-shaped part, an inclined plate part, and a second arc-shaped part. One end of the first arc-shaped part is integrally connected to the support part, and the other end of the first arc-shaped part is integrally connected to one end of the inclined plate part. The other end of the inclined plate part is integrally connected to one end of the second arc-shaped part. The other end of the second arc-shaped part is the free end and is integrally connected to the contact part. When the elastic arm is subjected to a vertical force, it can use the characteristics of the spring's shape and structure to offset part of the vertical force; however, when subjected to a horizontal force, it will cause warping and deformation on one side of the contact surface, affecting the contact reliability and stability of the antenna spring.

[0004] Chinese utility model patent CN217363054U discloses an elastic sensing control device, including a sensing unit connected to an elastic arm. The other end of the elastic arm is connected to a fixing part, which is connected to a circuit board. The current signal generated by the sensing unit enters the circuit board through the elastic arm and the fixing part. A limit mechanism is provided between the elastic arm and the fixing part to limit the elastic range of motion of the sensing unit. Similarly, when the elastic arm is subjected to a vertical force, the characteristics of the spring-shaped structure can offset part of the vertical force; however, when subjected to a horizontal force, it will cause warping deformation on one side of the sensing unit, affecting the reliability and stability of the sensing contact. Utility Model Content

[0005] This application addresses the shortcomings of existing methods by providing a protective shrapnel to solve one or more of the problems in the prior art.

[0006] This application provides a protective spring clip, including a fixing part, side guards, an elastic arm, and a protective arm. The side guards are respectively connected to opposite sides of the fixing part and together with the fixing part form a limiting groove. One end of the elastic arm is connected to the fixing part and bent relative to the fixing part. The elastic arm is located in the limiting groove and can be displaced relative to the fixing part to move closer to or away from the fixing part. The end of the elastic arm away from the fixing part is connected to a contact part, and the other end of the contact part is connected to the protective arm. The side of the contact part facing away from the fixing part has a contact surface. The protective arm is located in the limiting groove and can be displaced relative to the fixing part.

[0007] As an optional implementation, the side guards are provided in two and arranged opposite to each other. The side guards extend upward along the front and rear sides of the fixing part. A first limiting hole and a second limiting hole are respectively opened on the side guards. The two first limiting holes correspond to each other, and the two second limiting holes correspond to each other.

[0008] As an optional implementation, the elastic arm has an S-shaped structure, comprising a first arc-shaped portion, a light inclined plate portion, and a second arc-shaped portion. One end of the first arc-shaped portion is connected to the fixing portion, and the other end of the first arc-shaped portion is connected to one end of the light inclined plate portion. The other end of the light inclined plate portion is connected to one end of the second arc-shaped portion, and the other end of the second arc-shaped portion is connected to the contact portion.

[0009] As an optional implementation, the first arc-shaped portion is located inside the limiting groove and on the right side of the limiting groove, the light inclined plate portion is located inside the limiting groove and the left end of the light inclined plate portion extends out of the left side of the limiting groove, the front and rear sides of the light inclined plate portion are respectively spaced from the side guard arm, the light inclined plate portion extends slightly upward from right to left, and the second arc-shaped portion is located on the upper left of the light inclined plate portion and outside the limiting groove.

[0010] As an optional implementation, a first limiting wing is provided on both the front and rear sides of the light inclined plate. The first limiting wing is connected to the light inclined plate. The upper and lower surfaces of the first limiting wing are flush with the upper and lower surfaces of the light inclined plate, respectively. The first limiting wing extends out of the side guard arm through the first limiting hole. The first limiting wing moves within the first limiting hole as the elastic arm moves.

[0011] As an optional implementation, the front and rear sides of the protective arm are respectively spaced apart from the side guard arm. One end of the protective arm is connected to the contact part, and the front and rear sides of the other end of the protective arm are provided with second limiting wings. The second limiting wings extend out of the side guard arm through the second limiting hole, and the second limiting wings move within the second limiting hole as the elastic arm moves.

[0012] As an optional implementation, the contact portion is located above the limiting groove, the contact portion has a square or cylindrical structure, and a contact covering surface is provided between the side of the contact portion facing away from the fixing portion and the contact surface. The contact covering surface surrounds the contact surface and is in the shape of a boss.

[0013] As an optional implementation, the contact surface is a square plane or a circular plane, and the contact surface, the contact portion, and the fixing portion are arranged parallel to each other.

[0014] As an optional implementation, the fixing part is a plane, and the fixing part has a through hole in the middle.

[0015] As an optional implementation, the protective spring is a one-piece molded structure.

[0016] This application provides a protective shrapnel, and the technical solution provided by the embodiments of this application has at least the following beneficial effects:

[0017] Compared with the prior art, this application combines the second limiting wing of the protective arm with the second limiting hole of the side arm to prevent the elastic arm and contact part from undergoing elastic limit deformation or tearing when subjected to forces in the vertical and horizontal directions, thereby improving the overall structural strength of the protective spring. Due to the presence of the protective arm, it effectively prevents the mating device from undergoing elastic limit deformation or tearing when inserted into the protective spring from either side of the contact part. This allows the mating device to be inserted into the protective spring from the side, enabling free selection of the assembly and disassembly sequence, thus improving the assembly and disassembly efficiency and yield rate of the mating device. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of the spring in the prior patent;

[0020] Figure 2 This is a schematic diagram of another structure of the prior patent spring;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the spring sheet provided in the embodiments of this application;

[0022] Figure 4 This is a schematic diagram of the front view of the spring clip structure provided in an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of the right-side view of the spring clip structure provided in an embodiment of this application;

[0024] Figure 6 This is a top view of the spring clip structure provided in an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the spring clip structure from a bottom view, provided in an embodiment of this application.

[0026] Figure 8 A three-dimensional structural diagram of the spring sheet from another perspective, provided in an embodiment of this application;

[0027] Figure 9 This is a three-dimensional structural schematic diagram of another embodiment of the spring provided in this application.

[0028] Figure 10 A schematic diagram illustrating the longitudinal (vertical) connection between the spring clip and the PCB board provided in this embodiment of the application;

[0029] Figure 11 This is a schematic diagram of the structure for the horizontal (horizontal) connection between the spring and the PCB board provided in the embodiments of this application.

[0030] Figure labels and corresponding explanations:

[0031] 1: Fixed part; 2: Side guard arm; 3: Flexible arm; 4: Protective arm; 5: Contact part;

[0032] 11: Limiting groove; 12: Through hole;

[0033] 201: First limiting groove; 202: Second limiting groove;

[0034] 301: First arc-shaped part; 302: Light inclined plate part; 303: Second arc-shaped part; 304: First limiting wing part;

[0035] 401: Second limiting wing;

[0036] 51: Contact surface; 52: Contact cover surface. Detailed Implementation

[0037] This application is described in detail below. Examples of embodiments of this application are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. Furthermore, detailed descriptions of known technologies that are unnecessary for the features of this application are omitted. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0038] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in the specification of this application means the presence of the stated features, elements, and / or components, but does not exclude the presence or addition of one or more other features, elements, components, and / or groups thereof. The term “and / or” as used herein includes all or any units and all combinations thereof of one or more associated listed items.

[0039] like Figure 1-2 As shown, the existing patent includes a support, two protective arms, an elastic arm, and a protective arm. The two protective arms are respectively connected to opposite sides of the support and together with the support form a limiting groove. One end of the elastic arm is connected to the support and bends relative to the support. The elastic arm is located within the limiting groove and can move relative to the support to approach or move away from the support. The end of the elastic arm away from the support is a free end, which is connected to a contact part. The side of the contact part facing away from the support is the contact surface, which is a plane. When the elastic arm is subjected to a vertical force, it can utilize the characteristics of the spring-shaped structure to offset part of the vertical force; however, when subjected to a horizontal force, it will cause warping deformation on one side of the contact surface, affecting the contact reliability and stability of the antenna spring.

[0040] Another existing patent includes a sensing unit connected to a spring arm. The other end of the spring arm is connected to a fixing part, which is connected to a circuit board. The current signal generated by the sensing unit enters the circuit board via the spring arm and the fixing part. A limit mechanism is provided between the spring arm and the fixing part to limit the elastic range of motion of the sensing unit. Similarly, when the spring arm is subjected to a vertical force, the characteristics of the spring-shaped structure can offset part of the vertical force; however, when subjected to a horizontal force, it will cause warping and deformation on one side of the sensing unit, affecting the reliability and stability of the sensing contact.

[0041] To solve the above problems, such as Figure 3-11 As shown in the figure, this application provides a protective shrapnel.

[0042] like Figure 3-9As shown, a protective spring includes a fixing part 1, side guards 2, elastic arms 3, and protective arms 4. The side guards 2 are respectively connected to opposite sides of the fixing part 1 and together with the fixing part 1 form a limiting groove 11. In this embodiment, two side guards 2 are provided, which are arranged opposite each other and extend upward along the front and rear sides of the fixing part 1. A first limiting hole 201 and a second limiting hole 202 are respectively provided on the side guards 2, with the two first limiting holes 201 corresponding to each other and the two second limiting holes 202 corresponding to each other. The fixing part 1 is planar, and a through hole 12 is provided in the middle of the fixing part 1, which passes through the upper and lower sides of the fixing part 1. The through hole 12 is connected to the limiting groove 11, so that the circuit board is conveniently positioned for soldering through the through hole 12. One end of the elastic arm 3 is connected to the fixed part 1 and bent relative to the fixed part 1; the elastic arm 3 is located within the limiting groove 11 and can move relative to the fixed part 1 to approach or move away from the fixed part 1; the end of the elastic arm 3 away from the fixed part 1 is connected to the contact part 5, and the other end of the contact part 5 is connected to the protective arm 4. The protective arm 4 is located within the limiting groove 11 and can move relative to the fixed part 1. In this way, the protective spring can be connected to the fixed part 1 through the two side guards 2 and the protective arm 4, and the side guards 2 and the protective arm 4 are arranged with a uniform gap around the contact part 5 near the fixed part 1.

[0043] The elastic arm 3 has an S-shaped structure and includes a first arc-shaped portion 301, a light inclined plate portion 302, and a second arc-shaped portion 303. One end of the first arc-shaped portion 301 is connected to the fixing portion 1, the other end of the first arc-shaped portion 301 is connected to one end of the light inclined plate portion 302, the other end of the light inclined plate portion 302 is connected to one end of the second arc-shaped portion 303, and the other end of the second arc-shaped portion 303 is connected to the contact portion 5. By setting the elastic arm 3 to an S-shaped structure, the overall flexibility of the elastic arm 3 can be improved. When the elastic arm 3 is subjected to a vertical force, the characteristics of the S-shaped structure can offset part of the vertical force, thereby improving the stress resistance of the elastic arm 3 and enhancing the overall structural strength of the protective spring.

[0044] The first arc-shaped portion 301 is located inside the limiting groove 11 and on the right side of the limiting groove 11. The light inclined plate portion 302 is located inside the limiting groove 11 and the left end of the light inclined plate portion 302 extends out to the left side of the limiting groove 11. The front and rear sides of the light inclined plate portion 302 are respectively spaced apart from the corresponding side guards 2. The light inclined plate portion 302 extends obliquely upward from right to left. The second arc-shaped portion 303 is located to the upper left of the light inclined plate portion 302 and outside the limiting groove 11. The contact portion 5 is located above the limiting groove 11.

[0045] First limiting wings 304 are provided on both the front and rear sides of the inclined plate portion 302. The first limiting wings 304 are connected to the inclined plate portion 302, and their upper and lower surfaces are flush with the upper and lower surfaces of the inclined plate portion 302, respectively. The first limiting wings 304 pass through the first limiting hole 201 and extend out of the side guard arm 2. The first limiting hole 201 extends along the displacement direction of the elastic arm 3, and the first limiting wings 304 move within the first limiting hole 201 as the elastic arm 3 moves. Thus, through the combined design of the first limiting wings 304 and the first limiting hole 201, the swing displacement range of the elastic arm 3 can be limited, making the swing displacement of the elastic arm 3 controllable.

[0046] The protective arm 4 is spaced apart from the side guard arm 2 on both its front and rear sides. One end of the protective arm 4 is connected to the contact part 5, forming the tail end of the contact part 5. Second limiting wings 401 are provided on both the front and rear sides of the other end of the protective arm 4. The second limiting wings 401 pass through the second limiting hole 202 and extend out of the side guard arm 2. The second limiting hole 202 extends along the displacement direction of the elastic arm 3, and the second limiting wings 401 move within the second limiting hole 202 as the elastic arm 3 moves. Thus, through the combined design of the second limiting wings 401 and the second limiting hole 202, the swing displacement range of the elastic arm 3 can be limited, making the swing displacement of the elastic arm 3 controllable.

[0047] The contact portion 5 is located above the limiting groove 11, and the side of the contact portion 5 facing away from the fixing portion 1 is the contact surface 51. The contact portion 5 can have various shapes, such as a square or cylindrical structure, and the corresponding contact surface 51 is a square plane or a circular plane. When the mating device is subjected to force from any direction of the contact portion 5, the protective spring will undergo elastic deformation and slide vertically, thereby preventing the mating device from being inserted into the protective spring from any direction of the contact portion 5 and undergoing elastic limit deformation or being torn. A contact covering surface 52 is provided between the side of the contact portion 5 facing away from the fixing portion 1 and the contact surface 51. The contact covering surface 52 is in the shape of a boss and surrounds the contact surface 51, forming the edge of the contact surface 51. The contact covering surface 52 can also be set to other shapes, as long as the contact surface 51 is set to a plane. When the contact portion 5 is not touched or pressed, the contact surface 51, the contact portion 5, and the fixing portion 1 are arranged parallel to each other.

[0048] The entire protective shrapnel is a one-piece molded structure, manufactured using stamping or other methods, and then bent into shape. The one-piece molding process is simple, time-efficient, and saves raw materials, allowing for automated mass production.

[0049] like Figure 10-11As shown, the protective spring is soldered to the PCB circuit board through the through hole 12 on the fixing part 1. The protective spring can be fixed to the PCB circuit board in any direction according to the actual product. The mating device can be inserted into the protective spring in any direction from the side of the protective spring, which facilitates the assembly of the mating device and allows for free selection of the disassembly sequence.

[0050] In summary, this utility model mainly combines the second limiting wing of the protective arm with the second limiting hole of the side arm to prevent the elastic arm and contact part from undergoing elastic limit deformation or tearing when subjected to forces in the vertical and horizontal directions, thereby improving the overall structural strength of the protective spring. Due to the presence of the protective arm, it effectively prevents the mating device from undergoing elastic limit deformation or tearing when inserted into the protective spring from either side of the contact part. This allows the mating device to be inserted into the protective spring from the side, allowing for flexible selection of the assembly and disassembly sequence, thus improving the assembly and disassembly efficiency and yield rate of the mating device.

[0051] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0052] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0054] The above description is only a partial embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A protective shrapnel, characterized in that: The device includes a fixed part (1), side guards (2), elastic arms (3), and protective arms (4). The side guards (2) are respectively connected to the opposite sides of the fixed part (1) and together with the fixed part (1) form a limiting groove (11). One end of the elastic arm (3) is connected to the fixed part (1) and is bent relative to the fixed part (1). The elastic arm (3) is located in the limiting groove (11) and can move relative to the fixed part (1) to move closer to or away from the fixed part (1). One end of the elastic arm (3) away from the fixed part (1) is connected to a contact part (5), and the other end of the contact part (5) is connected to the protective arm (4). The side of the contact part (5) facing away from the fixed part (1) is provided with a contact surface (51). The protective arm (4) is located in the limiting groove (11) and can move relative to the fixed part (1).

2. The protective shrapnel according to claim 1, characterized in that, The side guard (2) is provided in two and is arranged opposite to each other. The side guard (2) extends upward along the front and rear sides of the fixing part (1). A first limiting hole (201) and a second limiting hole (202) are respectively opened on the side guard (2). The two first limiting holes (201) correspond to each other, and the two second limiting holes (202) correspond to each other.

3. The protective shrapnel according to claim 2, characterized in that, The elastic arm (3) has an S-shaped structure. The elastic arm (3) includes a first arc-shaped part (301), a light inclined plate part (302), and a second arc-shaped part (303). One end of the first arc-shaped part (301) is connected to the fixed part (1), and the other end of the first arc-shaped part (301) is connected to one end of the light inclined plate part (302). The other end of the light inclined plate part (302) is connected to one end of the second arc-shaped part (303). The other end of the second arc-shaped part (303) is connected to the contact part (5).

4. The protective shrapnel according to claim 3, characterized in that, The first arc-shaped portion (301) is located inside the limiting groove (11) and on the right side of the limiting groove (11). The light inclined plate portion (302) is located inside the limiting groove (11) and the left end of the light inclined plate portion (302) extends out to the left side of the limiting groove (11). The front and rear sides of the light inclined plate portion (302) are respectively spaced from the side guard arm (2). The light inclined plate portion (302) extends slightly upward from right to left. The second arc-shaped portion (303) is located to the upper left of the light inclined plate portion (302) and outside the limiting groove (11).

5. The protective shrapnel according to claim 4, characterized in that, The light inclined plate portion (302) is provided with a first limiting wing portion (304) on both the front and rear sides. The first limiting wing portion (304) is connected to the light inclined plate portion (302). The upper and lower surfaces of the first limiting wing portion (304) are flush with the upper and lower surfaces of the light inclined plate portion (302), respectively. The first limiting wing portion (304) extends out of the side guard arm (2) through the first limiting hole (201). The first limiting wing portion (304) moves within the first limiting hole (201) as the elastic arm (3) moves.

6. The protective shrapnel according to claim 2, characterized in that, The front and rear sides of the protective arm (4) are respectively spaced from the side guard arm (2). One end of the protective arm (4) is connected to the contact part (5). The front and rear sides of the other end of the protective arm (4) are provided with second limiting wings (401). The second limiting wings (401) extend out of the side guard arm (2) through the second limiting hole (202). The second limiting wings (401) move within the second limiting hole (202) as the elastic arm (3) moves.

7. The protective shrapnel according to claim 1, characterized in that, The contact part (5) is located above the limiting groove (11). The contact part (5) has a square or cylindrical structure. A contact cover (52) is provided between the side of the contact part (5) facing away from the fixing part (1) and the contact surface (51). The contact cover (52) surrounds the contact surface (51) and is in the shape of a boss.

8. The protective shrapnel according to claim 7, characterized in that, The contact surface (51) is a square plane or a circular plane, and the contact surface (51), the contact part (5) and the fixing part (1) are arranged parallel to each other.

9. The protective shrapnel according to claim 1, characterized in that, The fixing part (1) is a plane, and a through hole (12) is provided in the middle of the fixing part (1).

10. The protective shrapnel according to any one of claims 1-9, characterized in that, The protective spring clip is a one-piece molded structure.

Images