Wire tail clamp and connecting device

Abstract

The utility model belongs to the technical field of wires, and particularly provides a wire tail clamp and a connecting device, the connecting device comprises the wire tail clamp, the wire tail clamp comprises a main body and an elastic body, the peripheral side part of the main body is provided with a containing groove, and the elastic body is connected to the bottom of the containing groove and extends in the direction away from the bottom of the containing groove; the elastic body partially protrudes out of the containing groove in a natural state to form a shielding part, and the elastic body can be bent under the action of external force so that at least part of the shielding part can be contained in the containing groove. The elastic body can be bent to enable the shielding part to be partially accommodated in the accommodating groove, so that the wire tail clamp can smoothly penetrate through the through hole of the equipment shell to extend into the shell, and after the elastic body returns to the original shape, the shielding part is clamped on the inner wall of the shell and can shield a fit clearance between the main body and the through hole. And a user is prevented from seeing parts in the shell through a fit clearance between the main body and the through hole, so that the aim of improving the impression is fulfilled.

Description

Technical Field

[0001] The present application belongs to the field of wire technology, and in particular relates to a wire tail card and a connecting device. Background Art

[0002] Cable tails are usually required at the connection points between cables and devices such as adapters and chargers to protect the cables and prevent them from breaking and permanent deformation. During assembly, the cable tails are usually inserted from the outside of the device housing through the through-holes of the housing and into the inside of the housing. In order to ensure that the cable tails can pass through the through-holes of the housing smoothly, a clearance of about 0.2 mm is usually required between the through-holes of the housing and the stress relief parts, which results in users being able to see the parts inside the housing through the clearance, which is poor in appearance. Utility Model Content

[0003] The purpose of the present application is to provide a wire tail card and a connecting device, aiming to solve the technical problem in the prior art that users can see the parts inside the shell through the matching gap between the stress relief piece and the through hole of the product shell, resulting in poor visual experience.

[0004] On the one hand, in order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: a wire tail card, including a main body and an elastomer, the peripheral side of the main body is provided with a receiving groove, the elastomer is connected to the bottom of the receiving groove, and extends in a direction away from the bottom of the receiving groove. The elastomer partially protrudes out of the receiving groove in a natural state to form a shielding portion, and the elastomer can bend under the action of external force so that the shielding portion is at least partially retracted into the receiving groove.

[0005] Compared with the prior art, the beneficial effect of the wire tail card provided by the present application is that: during assembly, the wire tail card is inserted into the shell from the through hole opened in the device shell, and during the insertion process, the shielding part of the elastic body will abut against the through hole to cause the elastomer to bend, and the shielding part of the bent elastomer can be received in the receiving groove of the main body, so that the wire tail card can smoothly pass through the through hole and extend into the shell, and the elastomer can return to its original shape after passing through the through hole, so that the shielding part is stuck on the inner wall of the shell, and the shielding part can block the fitting gap between the main body and the through hole, preventing users from seeing the parts inside the shell through the fitting gap between the main body and the through hole, thereby achieving the purpose of improving the visual experience.

[0006] Furthermore, the receiving groove and the elastic body are both annular and are arranged around the main body.

[0007] Furthermore, the thickness of the elastomer is 0.3-0.9 mm.

[0008] Furthermore, a card slot is also provided on the peripheral side of the main body.

[0009] Furthermore, the main body includes a first section, a second section, a third section and a fourth section arranged in sequence along the length direction, and the cross-sectional dimension of the second section is at least partially smaller than the cross-sectional dimension of the first section, so that the second section cooperates with the first section to form a receiving groove, the cross-sectional dimension of the second section is larger than the cross-sectional dimension of the third section, the cross-sectional dimension of the fourth section is larger than the cross-sectional dimension of the third section, and the second section, the third section and the fourth section cooperate to form a card slot.

[0010] Furthermore, the elastic body is connected to an end of the second section away from the first section.

[0011] Furthermore, the second section includes a mating section and an extension section, one end of the mating section is connected to the first section, the other end of the mating section is connected to one end of the extension section, the other end of the extension section is connected to the third section, the cross-sectional dimension of the mating section is smaller than the cross-sectional dimension of the first section, the cross-sectional dimension of the extension section is larger than the cross-sectional dimension of the mating section, the first section, the mating section and the extension section cooperate to form a receiving groove, the elastomer is spaced apart from the first section and the extension section in a natural state, and the extension section, the third section and the fourth section cooperate to form a card slot.

[0012] Furthermore, one side of the shielding portion has a flat surface, and the other side of the shielding portion has a curved surface.

[0013] Furthermore, the main body and the elastic body are integrally arranged.

[0014] On the other hand, in order to achieve the above-mentioned purpose, the technical solution adopted in the present application is: a connecting device, including a shell, a circuit board, a cable and the above-mentioned wire tail card, the shell is provided with a through hole, the circuit board is arranged in the shell, the wire tail card is arranged on the cable, the wire tail card is inserted into the shell from the through hole so that the shielding part is clamped on the inner wall of the shell, and a conductor is arranged in the cable, and the conductor is electrically connected to the circuit board.

[0015] Compared with the prior art, the connection device provided by the present application has the beneficial effect that: during assembly, the wire tail card is inserted into the shell through the through hole provided in the shell, and the conductor inside the cable is electrically connected to the circuit board inside the shell. During the insertion process, the shielding portion of the elastic body will abut against the through hole to bend the elastic body, and the shielding portion of the bent elastic body can be received in the receiving groove of the main body, so that the wire tail card can smoothly pass through the through hole and extend into the shell, and the elastic body can return to its original state after passing through the through hole, so that the shielding portion is stuck on the inner wall of the shell, and the shielding portion can block the matching gap between the main body and the through hole, so as to prevent the user from seeing the parts inside the shell through the matching gap between the main body and the through hole, thereby achieving the purpose of improving the visual experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of the structure of a connection device provided in Example 1 of the present application;

[0018] Figure 2 for Figure 1 An exploded view of the connection device shown;

[0019] Figure 3 for Figure 1 A cross-sectional view of the connecting device shown;

[0020] Figure 4 for Figure 3 An enlarged view of the connecting device shown at A;

[0021] Figure 5 for Figure 3 A cross-sectional view of a wire tail card of the connecting device shown;

[0022] Figure 6 A schematic diagram of the structure of a wire tail card provided in Example 1 of the present application;

[0023] Figure 7 A cross-sectional view of a connecting device provided in Embodiment 2 of the present application;

[0024] Figure 8 for Figure 7 An enlarged view of the connecting device shown at B;

[0025] Fig. 9 for Figure 7 A cross-sectional view of a wire tail card of a connecting device is shown.

[0026] Among them, the reference numerals in the figure are:

[0027] 10. Wire tail card; 11. Main body; 111. Receiving slot; 112. Card slot; 113. First section; 114. Second section; 1141. Matching section; 1142. Extension section; 115. Third section; 116. Fourth section; 12. Elastomer; 121. Shielding part; 20. Housing; 21. Through hole; 30. Circuit board; 40. Cable; 50. Fixing bracket; 60. Input connector; 70. Output connector; 80. Surface cover. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0029] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] Embodiment 1

[0033] Combination Figure 1 and Figure 2 As shown, an embodiment of the present application provides a wire tail card 10, including a main body 11 and an elastomer 12, the circumferential side of the main body 11 is provided with a receiving groove 111, the elastomer 12 is connected to the bottom of the receiving groove 111, and is extended in a direction away from the bottom of the receiving groove 111, the elastomer 12 partially protrudes out of the receiving groove 111 in a natural state to form a shielding portion 121, and the elastomer 12 can bend under the action of an external force so that the shielding portion 121 is at least partially received in the receiving groove 111.

[0034] The wire tail card 10 provided in the embodiment of the present application is applied to the connection between the cable and the adapter, charger and other equipment, which can protect the cable and prevent the cable from breaking and permanent deformation. During assembly, the wire tail card 10 is inserted into the shell from the through hole opened in the device shell. During the insertion process, the shielding part 121 of the elastic body 12 will abut against the through hole to make the elastic body 12 bend. The shielding part 121 of the bent elastic body 12 can be received in the receiving groove 111 of the main body 11, so that the wire tail card 10 can smoothly pass through the through hole and extend into the shell. The elastic body 12 can return to its original state after passing through the through hole, so that the shielding part 121 is stuck on the inner wall of the shell. The shielding part 121 can block the matching gap between the main body 11 and the through hole, and prevent the user from seeing the parts inside the shell through the matching gap between the main body 11 and the through hole, so as to achieve the purpose of improving the appearance. Of course, since the shielding part 121 blocks the matching gap between the main body 11 and the through hole, it also plays a certain waterproof and dustproof role.

[0035] The cross-sectional dimension of the wire tail card 10 at the main body 11 is smaller than the dimension of the through hole of the shell, so that the main body 11 can pass through the through hole smoothly. When the elastic body 12 is in a natural state, the cross-sectional dimension of the wire tail card 10 at the elastic body 12 is larger than the dimension of the through hole of the shell, on the one hand, the shielding part 121 abuts against the through hole when inserted into the through hole, so that the elastic body 12 bends, and on the other hand, the shielding part 121 blocks the gap between the main body 11 and the through hole after passing through the through hole.

[0036] If the main body 11 does not have a receiving groove 111, and the elastic body 12 is directly arranged on the peripheral side of the main body 11, when the wire tail card 10 is inserted into the through hole of the shell, the elastic body 12 will generate a large extrusion force with the through hole due to insufficient deformation space, which will not only make it difficult to insert the wire tail card 10, but also cause serious wear of the elastic body 12 and the shell. However, by providing the receiving groove 111 on the peripheral side of the main body 11 and arranging the elastomer 12 at the bottom of the receiving groove 111, a larger deformation space can be provided for the elastomer 12, and the shielding part 121 of the bent elastomer 12 can be partially received in the receiving groove 111, and the part of the shielding part 121 protruding outside the receiving groove 111 is only lightly abutted against the inner wall of the through hole, and the extrusion force between the two is small, so that the wire tail card 10 can pass through the through hole more smoothly, and at the same time, the wear of the elastomer 12 and the shell is reduced.

[0037] Furthermore, if Figure 2As shown, the receiving groove 111 and the elastic body 12 are both annular and arranged around the main body 11. It can be understood that when the main body 11 is coaxial with the through hole, an annular fitting gap will be formed between the main body 11 and the through hole, and the elastic body 12 is annular and arranged around the main body 11, so that the fitting gap between the main body 11 and the through hole can be completely blocked, and the user is prevented from seeing the parts inside the shell through the fitting gap between the main body 11 and the through hole, thereby achieving the purpose of improving the visual experience. The receiving groove 111 is annular and arranged around the main body 11, so that the annular shielding portion 121 can be accommodated, ensuring that the wire tail card 10 can smoothly pass through the through hole of the shell.

[0038] It should be noted that the receiving groove 111 and the elastic body are both annular, which means that the receiving groove 111 and the elastic body 12 can be connected end to end to form a closed structure, and its shape can be but not limited to a circular ring. The cross-sectional shape of the wire tail clamp 10 at the elastic body 12 and the receiving groove 111 can be circular, elliptical, square, triangular, or irregular. For example, Figure 2 As shown, the cross-sectional shape of the wire tail card 10 at the elastic body 12 and the receiving groove 111 is circular, the shape of the elastic body 12 and the receiving groove 111 is annular, and the through hole of the shell is a corresponding circular hole. In this case, the diameter of the wire tail card 10 at the main body 11 should be about 0.2mm smaller than the diameter of the through hole to ensure that the main body 11 can pass through the through hole smoothly, and the diameter of the wire tail card 10 at the elastic body 12 should be 0.2-0.6mm larger than the diameter of the through hole to ensure that the shielding portion 121 can completely cover the matching gap between the main body 11 and the through hole. For example, Figure 6 As shown, the cross-sectional shape of the wire tail card 10 at the elastic body 12 and the receiving groove 111 is a square, the elastic body 12 and the receiving groove 111 are both in the shape of a square frame, and the through hole of the shell corresponds to a square hole. In this case, the side length of the cross section of the wire tail card 10 at the main body 11 should be about 0.2mm smaller than the side length of the through hole to ensure that the main body 11 can pass through the through hole smoothly, and the side length of the cross section of the wire tail card 10 at the elastic body 12 should be 0.2-0.6mm larger than the side length of the through hole to ensure that the shielding portion 121 can completely cover the fitting gap between the main body 11 and the through hole.

[0039] Furthermore, the thickness of the elastomer 12 is 0.3-0.9 mm. If the elastomer 12 is too thick, it will affect the elasticity and will not easily deform, while if the elastomer 12 is too thin, it will affect the strength and will be easily damaged. By selecting the thickness of the elastomer 12 to be 0.3-0.9 mm, it is ensured that the elastomer 12 has good elasticity and sufficient strength. Preferably, the thickness of the elastomer 12 is 0.3-0.6 mm, and specifically can be selected to be 0.3 mm. It should be noted that the thickness of the elastomer 12 refers to the size of the elastomer 12 in the length direction of the wire tail card 10.

[0040] Furthermore, if Figure 5 As shown, a clamping slot 112 is further provided on the peripheral side of the main body 11. The clamping slot 112 is used to clamp with a fixing component in the housing to fix the wire tail clamp 10.

[0041] Furthermore, if Figure 5 As shown, the main body 11 includes a first section 113, a second section 114, a third section 115 and a fourth section 116 which are sequentially arranged along the length direction, the cross-sectional dimension of at least a part of the second section 114 is smaller than the cross-sectional dimension of the first section 113, so that the second section 114 cooperates with the first section 113 to form a receiving groove 111, the cross-sectional dimension of the second section 114 is larger than the cross-sectional dimension of the third section 115, the cross-sectional dimension of the fourth section 116 is larger than the cross-sectional dimension of the third section 115, and the second section 114, the third section 115 and the fourth section 116 cooperate to form a card slot 112. The cross-sectional dimension of at least a part of the second section 114 is smaller than the cross-sectional dimension of the first section 113, that is, the second section 114 is at least partially recessed inward relative to the first section 113, and the recessed space is the receiving groove 111. The cross-sectional dimensions of the second section 114 and the fourth section 116 are both greater than the cross-sectional dimensions of the third section 115, that is, the third section 115 is recessed inwardly relative to the second section 114 and the fourth section 116, and the recessed space is the slot 112. Specifically, Figure 5 The cross-sectional dimension of any part of the second segment 114 shown is smaller than the cross-sectional dimension of the first segment 113. Of course, in some other embodiments, the cross-sectional dimension of the second segment 114 may be smaller than the cross-sectional dimension of the first segment 113 only at the local part close to the first segment 113, while the cross-sectional dimension of the local part of the second segment 114 far from the first segment 113 may be equal to the cross-sectional dimension of the first segment 113.

[0042] During installation, the main body 11 is inserted into the through hole of the shell with the fourth section 116 as the front end and the first section 113 as the rear end. The elastic body 12 connected to the second section 114 will bend in the direction close to the first section 113 when it abuts against the through hole, so that the shielding part 121 is partially received in the receiving groove 111. After the elastic body 12 passes through the through hole, the main body 11 is clamped on the fixed component in the shell through the clamping groove 112, so as to fix the wire tail card 10. During disassembly, the elastic body 12 is hindered by the inner wall of the shell and bends in the direction close to the third section 115. Since the third section 115 is recessed inwardly relative to the second section 114, the third section 115 will not hinder the bending of the elastic body 12, that is, it can provide deformation space for the elastic body 12, so that the wire tail card 10 can be smoothly withdrawn from the through hole.

[0043] Furthermore, if Figure 5 As shown, the elastic body 12 is connected to one end of the second section 114 away from the first section 113 to increase the interval between the elastic body 12 and the first section 113 in a natural state, thereby providing a larger deformation space for the elastic body 12 .

[0044] Furthermore, if Figure 5 As shown, one side of the shielding portion 121 has a flat surface, and the other side of the shielding portion 121 has a curved surface. The flat surface on one side of the shielding portion 121 is used to fit with the inner wall of the shell to ensure that the shielding portion 121 completely covers the matching gap between the main body 11 and the through hole; the curved surface on the other side of the shielding portion 121 is used to abut against the through hole of the shell. The setting of the curved surface can reduce the wear of the shielding portion 121 and the shell and extend the service life.

[0045] Furthermore, the main body 11 and the elastic body 12 are integrally arranged. The main body 11 and the elastic body 12 are integrally arranged to ensure that the main body 11 and the elastic body 12 are firmly connected, so that the elastic body 12 can be bent repeatedly without being easily separated from the main body 11, thereby improving working reliability and extending service life. Specifically, the main body 11 and the elastic body 12 can be integrally formed using elastic materials such as silicone, rubber or polyvinyl chloride.

[0046] Please also read Figures 1 to 4 The embodiment of the present application also provides a connection device, including a shell 20, a circuit board 30, a cable 40 and the above-mentioned wire tail card 10, the shell 20 is provided with a through hole 21, the circuit board 30 is arranged in the shell 20, the wire tail card 10 is arranged on the cable 40, the wire tail card 10 is inserted into the shell 20 from the through hole 21 so that the shielding portion 121 is stuck on the inner wall of the shell 20, and a conductor (not shown) is arranged in the cable 40, and the conductor is electrically connected to the circuit board 30.

[0047] The wire tail card 10 is applied at the connection between the cable 40 and the housing 20, and can protect the cable 40 and prevent the cable 40 from breaking and permanent deformation. During assembly, the wire tail card 10 is inserted into the housing 20 from the through hole 21 of the housing 20, and the conductor inside the cable 40 is electrically connected to the circuit board 30 inside the housing 20. During the insertion process, the shielding portion 121 of the elastic body 12 will abut against the through hole 21 to bend the elastic body 12, and the shielding portion 121 of the bent elastic body 12 can be received in the receiving groove 111 of the main body 11, so that the wire tail card 10 can smoothly pass through the through hole 21 and extend into the housing 20. After passing through the through hole 21, the elastic body 12 can return to its original state, so that the shielding portion 121 is stuck on the inner wall of the housing 20, and the shielding portion 121 can block the matching gap between the main body 11 and the through hole 21, so as to prevent the user from seeing the parts inside the housing 20 through the matching gap between the main body 11 and the through hole 21, thereby achieving the purpose of improving the visual experience. Of course, since the shielding portion 121 shields the matching gap between the main body 11 and the through hole 21 , it also plays a certain waterproof and dustproof role.

[0048] Furthermore, combined with Figure 3 , Figure 4 and Figure 5 As shown, the connection device further includes a fixing bracket 50, which is disposed on the circuit board 30 and is clamped in the clamping slot 112 of the main body 11. By arranging the fixing bracket 50 on the circuit board 30, the fixing bracket 50 is clamped in the clamping slot 112 of the main body 11, thereby achieving the fixing of the circuit board 30 and the wire tail card 10, and ensuring that the circuit board 30 and the conductor inside the cable 40 are reliably connected.

[0049] Furthermore, combined with Figure 1 and Figure 2 As shown, the connection device further includes an input connector 60 and an output connector 70. The input connector 60 is disposed on a side of the housing 20 facing away from the through hole 21 and is electrically connected to the circuit board 30. The output connector 70 is disposed on an end of the cable 40 away from the housing 20 and is electrically connected to the conductor. Specifically, the connection device may be a power adapter or a charger, the input connector 60 is an AC input connector 60, the output connector 70 is a DC output connector 70, and the circuit board 30 is used to convert the AC power input from the input connector 60 into DC power, and output it to an external device through the cable 40 and the output connector 70. The input connector 60 may be a pin, a socket, an AC power cable 40, etc.

[0050] Furthermore, combined with Figure 2 and Figure 3As shown, a through hole 21 is provided on one side of the housing 20, and a mounting opening (not shown) is provided on the other side of the housing 20. The connecting device further comprises a cover 80, which is mounted on the mounting opening, and an input connector 60 is arranged on the cover 80. During installation, the wire tail card 10 and the cable 40 are first inserted into the housing 20 from the through hole 21 on one side of the housing 20, and then passed out from the mounting opening on the other side of the housing 20, then the conductor inside the cable 40 is welded to the circuit board 30, and the fixing bracket 50 on the circuit board 30 is clamped in the clamping slot 112 of the main body 11, and the input connector 60 on the cover 80 is connected to the circuit board 30 through a lead wire, and finally the circuit board 30 is pushed into the housing 20 from the mounting opening, and the panel is covered.

[0051] Embodiment 2

[0052] like Fig. 9As shown, this embodiment provides a wire tail card. The difference between the wire tail card of this embodiment and the wire tail card of embodiment one is that the cross-sectional dimension of any part of the second section 114 in the wire tail card of embodiment one is smaller than the cross-sectional dimension of the first section 113, while the second section 114 in the wire tail card of this embodiment has only a partial cross-sectional dimension smaller than the cross-sectional dimension of the first section 113. Specifically, the second section 114 includes a mating section 1141 and an extension section 1142, one end of the mating section 1141 is connected to the first section 113, the other end of the mating section 1141 is connected to one end of the extension section 1142, the other end of the extension section 1142 is connected to the third section 115, the cross-sectional dimension of the mating section 1141 is smaller than the cross-sectional dimension of the first section 113, the cross-sectional dimension of the extension section 1142 is larger than the cross-sectional dimension of the mating section 1141, the first section 113, the mating section 1141 and the extension section 1142 cooperate to form the receiving groove 111, the elastomer 12 is spaced apart from the first section 113 and the extension section 1142 in a natural state, the extension section 1142, the third section 115 and the fourth section 116 cooperate to form the card slot 112. The cross-sectional dimensions of the first section 113 and the cross-sectional dimensions of the extension section 1142 are both larger than the cross-sectional dimensions of the matching section 1141, that is, the matching section 1141 is recessed inwardly relative to the first section 113 and the extension section 1142, and the recessed space is the receiving groove 111. Since the elastic body 12 is spaced apart from the first section 113 and the extension section 1142 in a natural state, the elastic body 12 can be bent toward the direction close to the first section 113 so that the shielding portion 121 is received in the receiving groove 111, so that the wire tail card can smoothly pass through the through hole of the shell during installation, and can also be bent toward the direction close to the extension section 1142 so that the shielding portion 121 is received in the receiving groove 111, so that the wire tail card can smoothly exit the through hole of the shell during disassembly. The cross-sectional dimensions of the extension section 1142 and the fourth section 116 are both greater than the cross-sectional dimensions of the third section 115, that is, the third section 115 is recessed inwardly relative to the extension section 1142 and the fourth section 116, and the recessed space is the card slot 112. The card slot 112 is used to engage with the fixing component in the housing to achieve the fixation of the wire tail card.

[0053] During installation, the main body 11 is inserted into the through hole of the shell with the fourth section 116 as the front end and the first section 113 as the rear end. The elastic body 12 connected to the matching section 1141 will bend in the direction close to the first section 113 when it abuts against the through hole, so that the shielding part 121 is partially received in the receiving groove 111. After the elastic body 12 passes through the through hole, the main body 11 is clamped on the fixed component in the shell through the clamping groove 112, thereby fixing the wire tail card. During disassembly, the elastic body 12 is hindered by the inner wall of the shell and bends in the direction close to the extension section 1142, so that the shielding part 121 is partially received in the receiving groove 111, so that the wire tail card can be smoothly withdrawn from the through hole.

[0054] Specifically, the wire tail clamp is an integrally formed structure, and the first section 113 and the extension section 1142 of the elastic body 12 are arranged at intervals in the natural state, that is, there is no adhesion between the elastic body 12 and the first section 113, and there is no adhesion between the elastic body 12 and the extension section 1142, so that the entire section of the elastic body 12 can be bent, and the deformation ability of the elastic body 12 is enhanced. Before the receiving groove 111 is opened and the elastic body 12 is formed, the second section 114 is uniform in thickness as a whole, that is, the cross-sectional size of the matching section 1141 is equal to the cross-sectional size of the extension section 1142, and a protrusion is processed on the second section 114, which is the shielding portion 121 of the elastic body 12 of the final form of the wire tail clamp. When the receiving groove 111 is formed, a groove is formed on the second section 114 on the side of the protrusion facing the first section 113, and a groove is formed on the second section 114 on the side of the protrusion facing the third section 115. The inwardly recessed portion of the second section 114 forms a matching section 1141. The two grooves form the receiving groove 111. The portion of the second section 114 between the two grooves and the protrusion forms a complete elastic body 12, and the other portions form an extended section 1142.

[0055] Combination Figure 7 , Figure 8 and Fig. 9 As shown, the present embodiment further provides a connection device, which includes a shell 20, a circuit board 30, a fixing bracket 50, a cable 40, an input connector 60, an output connector 70, a cover 80 and the above-mentioned wire tail card 10. A through hole 21 is provided on one side of the shell 20, and an installation port (not shown) is provided on the other side of the shell 20. The cover 80 is installed on the installation port. The circuit board 30 is arranged in the shell 20, the input connector 60 is arranged on the cover 80 and is electrically connected to the circuit board 30, the fixing bracket 50 is arranged on the circuit board 30, the wire tail card 10 is arranged on the cable 40, and the wire tail card 10 is inserted into the shell 20 from the through hole 21 so that the shielding portion 121 is clamped on the inner wall of the shell 20, the fixing bracket 50 is clamped in the card slot 112 of the main body 11, a conductor (not shown) is provided in the cable 40, and the conductor is electrically connected to the circuit board 30. The output connector 70 is arranged on the end of the cable 40 away from the shell 20 and is electrically connected to the conductor.

[0056] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be repeated here.

[0057] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A wire tail card, characterized in that: It includes a main body and an elastomer, wherein a receiving groove is provided on the peripheral side of the main body, the elastomer is connected to the bottom of the receiving groove and extends in a direction away from the bottom of the receiving groove, the elastomer partially protrudes out of the receiving groove in a natural state to form a shielding portion, and the elastomer can bend under the action of an external force so that the shielding portion is at least partially received in the receiving groove.

2. The wire tail clamp according to claim 1, characterized in that: The receiving groove and the elastic body are both annular and are arranged around the main body.

3. The wire tail clamp according to claim 1, characterized in that: The thickness of the elastic body is 0.3-0.9 mm.

4. The wire tail clamp according to claim 1, characterized in that: A card slot is also provided on the peripheral side of the main body.

5. The wire tail clamp according to claim 4, characterized in that: The main body includes a first section, a second section, a third section and a fourth section arranged in sequence along the length direction, the cross-sectional dimension of the second section at least partially is smaller than the cross-sectional dimension of the first section, so that the second section cooperates with the first section to form the receiving groove, the cross-sectional dimension of the second section is larger than the cross-sectional dimension of the third section, the cross-sectional dimension of the fourth section is larger than the cross-sectional dimension of the third section, and the second section, the third section and the fourth section cooperate to form the card slot.

6. The wire tail clamp according to claim 5, characterized in that: The elastic body is connected to an end of the second section away from the first section.

7. The wire tail clamp according to claim 5, characterized in that: The second section includes a mating section and an extension section, one end of the mating section is connected to the first section, the other end of the mating section is connected to one end of the extension section, and the other end of the extension section is connected to the third section, the cross-sectional dimension of the mating section is smaller than the cross-sectional dimension of the first section, and the cross-sectional dimension of the extension section is larger than the cross-sectional dimension of the mating section, the first section, the mating section and the extension section are mated together to form the receiving groove, the elastomer is spaced apart from the first section and the extension section in a natural state, and the extension section, the third section and the fourth section are mated together to form the card slot.

8. The wire tail clamp according to any one of claims 1 to 7, characterized in that: One side of the shielding portion has a flat surface, and the other side of the shielding portion has a curved surface.

9. The wire tail clamp according to any one of claims 1 to 7, characterized in that: The main body and the elastic body are integrally arranged.

10. A connection device, characterized in that: It includes a shell, a circuit board, a cable and a wire tail card as described in any one of claims 1 to 9, the shell is provided with a through hole, the circuit board is arranged in the shell, the wire tail card is arranged on the cable, the wire tail card is inserted into the shell through the through hole so that the shielding part is clamped on the inner wall of the shell, a conductor is arranged in the cable, and the conductor is electrically connected to the circuit board.

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