Wire clamp

Abstract

A wire clamp comprises a first substrate mounted on a printed circuit board, a clamping arm or a first side plate formed by bending and extending upwards from a transverse first side of the first substrate, and a clamping arm formed by bending and extending upwards from a transverse second side of the first substrate, the clamping arm comprises a first accommodating arc part formed by bending the first base plate in an arc shape, a first closing part formed by bending and extending from the upper end of the first accommodating arc part towards a transverse first side direction, and a first guide part formed by bending and extending from the top of the first closing part towards the transverse outer side; a first notch part is formed in the first containing arc part, and the first closing-in part extends towards the inner side of the first notch part to form a first abutting piece. The cable clamp can stably and effectively clamp the cable and is not easy to withdraw.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electrical connection, in particular to a cable clamp for fixing cables. BACKGROUND

[0002] Electronic devices have circuit boards inside, and some electronic devices can have more than one circuit board. When designing circuit boards, some high-frequency signals are not suitable for transmission within the circuit board, and need to be transmitted directly from a certain position of the circuit board to another position of the circuit board through a jumper wire or a flying wire, or transmitted directly from one circuit board to another circuit board through a cable. Therefore, the cables inside the electronic device need to be managed and planned to avoid internal confusion and to make the cables follow the specified route and layout. At this time, the cables need to be fixed and kept tidy by the cable clamp fixed on the circuit board.

[0003] A cable clamp disclosed in Patent Application No. CN202021690248.2 includes a base plate, a welding part fixed on the circuit board formed by extending from both ends of the base plate, and a clamping arm formed by extending upward from the lateral sides of the base plate. The clamping arm includes a wide arc part formed by extending upward from the lateral sides of the base plate, a narrow part formed by extending upward from the upper end of the wide arc part, and a guide part formed by extending outward from the narrow part. The width of the narrow part is smaller than the width of the wide arc part. The cable is pressed into the wide arc part through the guide part along the lateral outside of the narrow part, and the cable needs to overcome the elastic force of the narrow part to exit the wide arc part. If the elastic force of the narrow part is too large, the cable may be damaged when being pressed into the wide arc part. If the elastic force of the narrow part is too small, the cable may exit when being subjected to external impact force, thereby affecting the internal space layout of the electronic device. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a cable clamp with good cable fixing performance, easy cable pressing, and difficult cable exiting.

[0005] To solve the above technical problems, the present application provides a cable clamp, which includes a first base plate attached to a printed circuit board, a clamping arm or a first side plate formed by extending upward from a first lateral side of the first base plate, and a clamping arm formed by extending upward from a second lateral side of the first base plate. The clamping arm includes a first accommodating arc part formed by arc bending from the first base plate, a first narrow part formed by extending from the upper end of the first accommodating arc part toward the first lateral side, and a first guide part formed by extending from the top of the first narrow part toward the lateral outside. A first notch part is formed in the first accommodating arc part, and a first pressing piece is formed in the first narrow part extending toward the inside of the first notch part.

[0006] Preferably, the first accommodating arc portion is formed with an accommodating space, the first closing portion is formed with a closing space, the closing space has a transverse width smaller than that of the accommodating space, and the cable is clamped in the accommodating space and extruded outward to force the first closing portion to deform inward to reduce the transverse width of the closing space.

[0007] Preferably, the first pressing piece includes a starting section formed by tearing from the lower side of the first closing portion and a pressing end extending obliquely to the lateral outer side from the starting section, the pressing end does not protrude outward beyond the inner wall surface of the first accommodating arc portion, and the pressing end extends downward by no more than the arc-shaped middle line of the first accommodating arc portion.

[0008] Preferably, after the cable is clamped in the accommodating space, the cable extrudes the pressing end outward and forces the first closing portion to deform inward to reduce the transverse width of the closing space.

[0009] To solve the above technical problems, the application further provides another cable clamp, which includes a first cable clamp and a second cable clamp connected as a whole with the first cable clamp, the first cable clamp includes a first base plate, a first side plate extending upward from the first base plate on the first lateral side, and a clamping arm extending upward from the first base plate on the second lateral side, the second cable clamp includes a second base plate, a second side plate extending upward from the second base plate on the second lateral side, and a clamping arm extending upward from the second base plate on the first lateral side, and the first side plate and the second side plate are connected as a whole by a connecting portion on the top.

[0010] Preferably, there is a gap between the first side plate and the second side plate, the first base plate is formed with a first welding portion extending toward the first longitudinal end, and the second base plate is formed with a second welding portion extending toward the second longitudinal end.

[0011] Preferably, the clamping arm of the first cable clamp includes a first accommodating arc portion formed by arc bending from the first base plate, a first closing portion extending downward from the upper end of the first accommodating arc portion toward the first lateral side, and a first guide portion extending upward from the top of the first closing portion toward the lateral outer side, the first accommodating arc portion is formed with a first notch portion on the upper side, and the first closing portion is formed with a first pressing piece extending inward to the inner side of the first notch portion; the clamping arm of the second cable clamp includes a second accommodating arc portion formed by arc bending from the first lateral side of the second base plate, a second closing portion extending downward from the upper end of the second accommodating arc portion toward the second side plate, and a second guide portion extending upward from the top of the second closing portion toward the lateral outer side, the second accommodating arc portion is formed with a second notch portion on the upper side, and the second closing portion is formed with a second pressing piece extending inward to the inner side of the second notch portion.

[0012] Preferably, the first pressing piece and the second pressing piece each comprise a starting section formed by tearing from the lower side of the first or second closing section and a pressing end extending obliquely from the starting section to the lateral side, the pressing end does not exceed the inner wall surface of the first or second accommodating arc section, and the pressing end extends downward by no more than the arc center line of the first or second accommodating arc section.

[0013] Preferably, the first accommodating arc section and the second accommodating arc section each form an accommodating space, the first closing section and the second closing section each form a closing space, the lateral width of the closing space is smaller than the lateral width of the accommodating space, and the cable is clamped in the accommodating space, and the lateral width of the closing space is smaller than the diameter of the cable.

[0014] Preferably, after the cable is pressed into the accommodating space, the cable extrudes the pressing end outward and forces the first closing section to deform inward to reduce the lateral width of the closing space.

[0015] Compared with the prior art, when the cable is pressed from the closing space into the accommodating space, the first pressing piece and / or the second pressing piece have an oblique downward pressure on the cable, which ensures that the cable does not easily exit. At the same time, the pressing end of the first pressing piece or the second pressing piece is extruded outward by the cable, which causes the first closing section and / or the second closing section to move further toward the first side plate and / or the second side plate, thereby further reducing the lateral width of the closing space and reducing the risk of the cable exiting from the closing space.

[0016] At the same time, the first cable clamp and the second cable clamp are integrated together, and two cables can be fixed at the same time. Each cable clamp is provided with a first side plate and a second side plate connected together, and the first accommodating arc section and the second accommodating arc section opposite to the first side plate and the second side plate are used to clamp the cable. Compared with the conventional cable clamp provided with two accommodating arc sections, a certain occupied space can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application in any way. In the drawings:

[0018] Figure 1 FIG. 1 is a perspective view of a cable clamp according to the present application;

[0019] Figure 2 FIG. 2 is another perspective view of the cable clamp according to the present application from another angle;

[0020] Figure 3 FIG. 3 is a sectional view of the cable clamp according to the present application along the line A-A in FIG. 1; Figure 1A-A line of the cross-sectional view shown.

[0021] Reference numerals

[0022] Clip-10; connecting portion-11; first side plate-12; second side plate-22; first base plate-13; second base plate-23; first accommodating arc portion-14; second accommodating arc portion-24; first closing portion-15; second closing portion-25; first guide portion-16; second guide portion-26; first notch portion-17; second notch portion-27; first pressing piece-18; second pressing piece-28; starting section-181; pressing end-182; first welding end-19; second welding end-29; accommodating space-S1; closing space-S2; first clip-101; second clip-201. DETAILED DESCRIPTION

[0023] For the purpose, technical solutions and advantages of the present application to be clearer, the technical solutions of the present application will be described clearly and completely below in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments.

[0024] The present application is based on Figure 1 The X direction shown is the transverse direction, the Y direction is the longitudinal direction, and the Z direction is the upward vertical direction.

[0025] Embodiment one

[0026] Please refer to Figures 1 to 3 As shown, the clip 10 of the present application is a double clip structure, which can clamp two cables (not shown) at the same time. The clip 10 of the present application comprises a first clip 101 and a second clip 201 connected integrally with the first clip 101.

[0027] The first clip 101 includes a first substrate 13 attached to a printed circuit board (not shown), a first side plate 12 formed by bending the first substrate 13 upward from a first lateral side, and a clamping arm formed by bending the first substrate 13 upward from a second lateral side. The clamping arm includes a first receiving arc portion 14 formed by bending the first substrate 13 in an arc shape, a first closing portion 15 formed by bending the first receiving arc portion 14 upward from an upper end toward the first side plate 12, and a first guide portion 16 formed by bending the first closing portion 15 upward from a top portion toward a lateral outer side. A receiving space S1 for receiving a cable is formed between the first side plate 12 and the first receiving arc portion 14, a closing space S2 for the cable to enter the receiving space S1 is formed between the first side plate 12 and the first closing portion 15, a lateral width of the closing space S2 is smaller than a lateral width of the receiving space S1, and the lateral width of the closing space S2 is smaller than a diameter of the cable. The first guide portion 16 is inclined outward to guide the cable to be pressed in.

[0028] A first notch portion 17 is cut on an upper side of the first receiving arc portion 14 between the first closing portion 15 and the first substrate 13, and a first pressing piece 18 is formed by extending downward from a lower side of the first closing portion 15. The first pressing piece 18 includes a starting section 181 close to a side of the first closing portion 15, and a pressing end 182 formed by extending obliquely outward from the starting section 181. A free end of the pressing end 182 is located in the receiving space S1 and close to an inner wall of the first receiving arc portion 14, that is, the pressing end 182 does not protrude outward beyond the inner wall surface of the first receiving arc portion 14, and a distance between the pressing end 182 and a plane where the first substrate 13 is located is not more than an arc middle line L of the first receiving arc portion 14.

[0029] A first welding end 19 is formed by extending a first end of the first substrate 13, a bottom surface of the first welding end 19 is flush with a bottom surface of the first substrate 13, and the first welding end 19 is fixed to the printed circuit board by soldering.

[0030] The second clip 201 is connected to the first clip 101 by a connecting portion 11 formed by reverse bending the top of the first side plate. The second clip 201 includes a second base plate 23 attached to a printed circuit board (not shown), a second side plate 22 extending from the second base plate 23 in a second lateral direction, and a clamping arm extending from the second base plate 23 in a first lateral direction. The clamping arm includes a second receiving arc portion 24 extending from the second base plate 23 in a first lateral direction, a second closing portion 25 extending from the upper end of the second receiving arc portion 24 toward the second side plate 22, and a second guide portion 26 extending from the top of the second closing portion 25 toward the outside in the lateral direction. The second side plate 22 and the second receiving arc portion 24 form a receiving space S1 for receiving a cable, and the second side plate 22 and the second closing portion 25 form a closing space S2 for the cable to enter the receiving space S1. The lateral width of the closing space S2 is smaller than the lateral width of the receiving space S1, and the lateral width of the closing space S2 is smaller than the diameter of the cable. The second guide portion 26 is inclined outward to guide the cable.

[0031] A second notch portion 27 is cut from the upper end of the second receiving arc portion 24 between the lower side of the second closing portion 25 and the second base plate 23, and a second pressing piece 28 extends downward from the lower side of the second closing portion 25. The second pressing piece 28 includes a starting section 181 near one side of the second closing portion 25 and a pressing end 182 extending obliquely outward from the starting section 181. The free end of the pressing end 182 is located in the receiving space S1 and is close to the inner wall of the second receiving arc portion 24, i.e., the pressing end 182 does not protrude outward beyond the inner wall surface of the second receiving arc portion 24. There is a certain distance between the pressing end 182 and the plane of the second base plate 23, and the extension length of the pressing end 182 does not exceed the arc center line L of the second receiving arc portion 24 downward.

[0032] The second base plate 23 continues to extend to form a second welding end 29 at the second longitudinal end. The bottom surface of the second welding end 29 is flush with the bottom surface of the second base plate 23 and is attached and welded to the printed circuit board.

[0033] The first side plate 12 of the first clamp 101 and the top of the second side plate 22 of the second clamp 201 are bent to form the connecting part 11 connecting the two. There is a gap between the first side plate 12 and the second side plate 22 to provide a certain deformation space. The first welding end 19 and the second welding end 29 are respectively located at the two ends of the longitudinal direction, and the width of the first welding end 19 and the second welding end 29 is greater than the width of the first base plate 13 and the second base plate 23 to stably fix the clamp 10 on the printed circuit board and take into account the stability of the first clamp 101 and the second clamp 201.

[0034] When the cable is pressed into the containing space S1 from the closing space S2, the first pressing piece 18 and / or the second pressing piece 28 have an oblique downward pressure on the cable to ensure that the cable does not easily exit. At the same time, the pressing end 182 of the first pressing piece 18 or the second pressing piece 28 is extruded outward by the cable, so that the first closing part 15 and / or the second closing part 25 move further toward the first side plate 12 and / or the second side plate 22 to further reduce the transverse width of the closing space S2 and reduce the risk of the cable exiting from the closing space S2.

[0035] The present application integrates the first clamp 101 and the second clamp 201 together to simultaneously receive the fixation of two cables. Each clamp is provided with the first side plate 12 and the second side plate 22 connected together, clamps the cable through the first containing arc part 14 and the second containing arc part 24 opposite to the first side plate 12 and the second side plate 22, and increases the holding force and the difficulty of exiting of the cable through the deformation of the first pressing piece 18 and the second pressing piece 28. Compared with the traditional clamp with two containing arc parts for each clamp, the occupied space can be reduced.

[0036] Embodiment Two

[0037] Compared with Embodiment One, the present embodiment provides a single clamp instead of two clamps connected together, that is, a first clamp (referred to as a clamp in the present embodiment). The clamp in the present embodiment includes the same structure as the first clamp in Embodiment One, such as the first side plate 12, the first base plate 13, the first containing arc part 14, the first closing part 15, the first gap part 17, the first guide part 16, the first pressing piece 18, etc.

[0038] However, in the present embodiment, the first side plate 12 can be replaced by a structure symmetrical to the structure of one side of the first containing arc part 14 and the first closing part 15 to achieve bilateral clamping of the cable.

[0039] Any combination of the technical features in the above embodiments can be made, and for the sake of brevity, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist contradiction, it should be considered as the scope of the description.

[0040] The above embodiments only express the preferred embodiments of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A clip comprising a first base plate attached to a printed circuit board, a clamping arm or a first side plate formed by bending upwardly from a first lateral side of said first base plate, and a clamping arm formed by bending upwardly from a second lateral side of said first base plate, said clamping arm comprising a first receiving arc portion formed by bending arcuately from said first base plate, a first closing portion formed by bending upwardly from an upper end of said first receiving arc portion toward said first lateral side, and a first guide portion formed by bending upwardly from a top of said first closing portion toward a lateral outer side, characterized in that, The first accommodating arc portion is provided with a first notch portion, and the first closing portion extends to the inside of the first notch portion and is provided with a first pressing piece.

2. The clip of claim 1, wherein The first accommodating arc portion is provided with an accommodating space, and the first closing portion is provided with a closing space, the transverse width of the closing space is smaller than the transverse width of the accommodating space, and the cable is clamped in the accommodating space, and the transverse width of the closing space is smaller than the diameter of the cable.

3. The clip of claim 2, wherein The first pressing piece comprises a starting section formed by tearing from the lower side of the first closing portion and a pressing end formed by extending obliquely to the lateral outside from the starting section, the pressing end does not exceed the inner wall surface of the first accommodating arc portion outwardly, and the pressing end extends downwardly by not more than the arc center line of the first accommodating arc portion.

4. The clip of claim 3 wherein, After the cable is pressed into the accommodating space, the pressing end is extruded outwardly and forces the first closing portion to deform inwardly to reduce the transverse width of the closing space.

5. A wire clamp, characterized in that The first wire clamp comprises a first base plate, a first side plate formed by extending upwardly from the lateral first side of the first base plate, and a clamping arm formed by extending upwardly from the lateral second side of the first base plate, and the second wire clamp comprises a second base plate, a second side plate formed by extending upwardly from the lateral second side of the second base plate, and a clamping arm formed by extending upwardly from the lateral first side of the second base plate, and the first side plate and the second side plate are integrally connected by a connecting portion.

6. The clip of claim 5 wherein, There is a gap between the first side plate and the second side plate, the first base plate is provided with a first welding portion extending toward the longitudinal first end, and the second base plate is provided with a second welding portion extending toward the longitudinal second end.

7. The clip of claim 5 wherein, The first wire clamp comprises a first accommodating arc portion formed by arc bending from the first base plate, a first closing portion formed by extending upwardly from the upper end of the first accommodating arc portion toward the lateral first side, and a first guide portion formed by extending upwardly from the top of the first closing portion toward the lateral outside, the first accommodating arc portion is provided with a first notch portion, and the first closing portion is provided with a first pressing piece extending to the inside of the first notch portion; the clamping arm of the second wire clamp comprises a second accommodating arc portion formed by arc bending from the lateral first side of the second base plate, a second closing portion formed by extending upwardly from the upper end of the second accommodating arc portion toward the second side plate, and a second guide portion formed by extending upwardly from the top of the second closing portion toward the lateral outside, the second accommodating arc portion is provided with a second notch portion, and the second closing portion is provided with a second pressing piece extending to the inside of the second notch portion.

8. The clip of claim 7 wherein, The first pressing piece and the second pressing piece each comprise a starting section formed by tearing from the lower side of the first closing portion or the second closing portion and a pressing end formed by extending obliquely to the lateral outside from the starting section, the pressing end does not exceed the inner wall surface of the first accommodating arc portion or the second accommodating arc portion outwardly, and the pressing end extends downwardly by not more than the arc center line of the first accommodating arc portion or the second accommodating arc portion.

9. The clip of claim 8, wherein, The first accommodating arc part and the second accommodating arc part are formed with accommodating spaces, and the first closing-in part and the second closing-in part are formed with closing-in spaces, the transverse width of the closing-in space is smaller than the transverse width of the accommodating space, and the cable is clamped in the accommodating space.

10. The clip of claim 9, wherein, After the cable is pressed into the accommodating space, the cable extrudes the pressing end outward and forces the first closing-in part to deform inward to reduce the transverse width of the closing-in space.

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