Fixable wire clamp for printed board

Abstract

The utility model relates to the field of cable fixation and installation, in particular to a fixable wire clamp for a printed board, which comprises a wire clamp body provided with a cable accommodating through hole penetrating through two corresponding side surfaces of the wire clamp body. Two limiting blocks which are correspondingly arranged are further fixedly arranged on the wire clamp plate body, the area between the two limiting blocks is an inlet channel, one end of the inlet channel is communicated with the cable containing through hole, and the other end of the inlet channel extends out of the wire clamp body in the direction away from the cable containing through hole; and the cable is arranged in the axial direction of the cable accommodating through hole. The cable connector is simple in structure, convenient to use, high in strength, small in size, convenient to install, free of cable extrusion, convenient to process and high in practicability, meets the requirement for fixing a printed board cable, and effectively prevents the cable located in the cable containing through hole from being separated from the inlet channel by means of the fact that the inlet channel is bent in the axial direction of the cable containing through hole.

Description

Technical Field

[0001] The utility model relates to the field of cable fixing and installation, in particular to a printed circuit board fixable line card. Background Art

[0002] At present, whether in industry or in life, the line cards that fix various cables are basically plastic parts. The main materials are PE or nylon. The process mainly uses plastic injection molding, which requires a large number of pieces. Moreover, these line cards are large in size, which is not suitable for some industrial products with limited space.

[0003] Because these line cards are injection molded parts, the size of the part that fixes the cable is generally fixed and cannot be adjusted. You can choose line cards of different sizes according to your cable diameter. Because they are injection molded parts, there are requirements for the number of line cards of a single size. Secondly, the mold opening fee is relatively high.

[0004] Currently, commonly used cable fixing methods include adhesive, rolled tape, screw, etc., or a combination of these methods.

[0005] The adhesive fixing method is convenient and quick, but when used in industrial products, the products will heat up and vibrate, the adhesive may fail, and the reliability is not high.

[0006] The rolled tape fixing method can be used for most cables, but it is not suitable for some cables that require bending, such as optical fiber cables. If rolled tape is used, the optical fiber may be damaged, resulting in performance degradation or damage.

[0007] The screw-type fixing method is generally composed of screws and plastic parts. The screws need to have installation threaded holes. Sometimes it is not convenient to process the installation threaded holes in some positions of the product.

[0008] For printed circuit boards, space is very tight, and the cables on the printed circuit boards are generally very fragile. Unlike commonly used industrial test cables or cables in daily life, they are not suitable for fixing with existing line cards. Utility Model Content

[0009] In order to solve the above problems, the utility model provides a printed circuit board fixed cable card which meets the requirements of printed circuit board cable fixation, has high strength, small size, convenient installation, does not squeeze cables, is convenient to process, and has strong practicality.

[0010] The utility model discloses a printed circuit board fixable line card, comprising a line card body, wherein the line card body is provided with cable accommodating through holes penetrating two corresponding side surfaces of the line card body;

[0011] Two corresponding limit blocks are fixedly arranged on the line card body, and the area between the two limit blocks is an entry channel, one end of the entry channel is connected to the cable accommodating through hole, and the other end of the entry channel extends out of the line card body in a direction away from the cable accommodating through hole;

[0012] In the axial direction of the cable accommodating through hole, the entry channel penetrates two corresponding side surfaces of the line card body;

[0013] The entry channel is bent in the axial direction of the cable accommodating through hole.

[0014] Preferably, the opening distance of the entry channel is equal to or matches the wire diameter of the cable with a negative tolerance.

[0015] Preferably, the entry channel includes channels connected to each other at both ends, namely a first channel and a second channel, the central axes of the first channel and the second channel are located in the same plane, and the angle between the central axes of the first channel and the second channel is an obtuse angle.

[0016] Preferably, the angle between the central axes of the first channel and the second channel is 150 degrees.

[0017] Preferably, chamfers are arranged on one end of the entry channel connected to the cable accommodating through hole and on one end away from the cable accommodating through hole.

[0018] Preferably, the cable accommodating through hole and the entry channel are both provided with chamfers at both ends of the cable accommodating through hole in the axial direction.

[0019] Or preferably, the line card body is further provided with a mounting through hole for fixing the line card body.

[0020] Preferably, the central axis of the mounting through hole is perpendicular to the central axis of the cable accommodating through hole.

[0021] Preferably, a positioning column is also provided on the line card body.

[0022] Preferably, the positioning column is arranged on an end surface of the line card body where one end of the mounting through hole is located.

[0023] The utility model has the advantages of simple structure, convenient use, and meets the requirements of fixing cables of printed circuit boards. It has high strength, small size, convenient installation, no squeezing of cables, convenient processing, and strong practicality. The entry channel is bent in the axial direction of the cable accommodating through hole, which effectively prevents the cables in the cable accommodating through hole from escaping from the entry channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model.

[0025] Figure 2 It is the front view of the utility model.

[0026] Figure 3 It is a top view of the utility model.

[0027] Figure numerals: 1-line card body, 2-cable accommodating through hole, 3-entry channel, 4-installation through hole, 5-positioning column. DETAILED DESCRIPTION

[0028] The utility model discloses a printed circuit board fixed line card, comprising a line card body 1, wherein the line card body 1 is provided with a cable accommodating through hole 2 penetrating two corresponding side surfaces of the line card body 1;

[0029] Two corresponding limit blocks are fixedly arranged on the line card body, and the area between the two limit blocks is an entry channel 3, one end of the entry channel 3 is connected to the cable accommodating through hole 2, and the other end of the entry channel 3 extends out of the line card body 1 in a direction away from the cable accommodating through hole 2;

[0030] In the axial direction of the cable accommodating through hole 2, the entry channel 3 penetrates the two corresponding side surfaces of the line card body 1;

[0031] The entry channel 3 is bent in the axial direction of the cable accommodating through hole 2 .

[0032] The opening distance into the channel 3 is equal to the wire diameter of the cable or matches the negative tolerance.

[0033] The entry channel 3 includes channels connected to each other at both ends, namely a first channel and a second channel. The central axes of the first channel and the second channel are located in the same plane, and the angle between the central axes of the first channel and the second channel is an obtuse angle.

[0034] The angle between the central axes of the first channel and the second channel is 150 degrees.

[0035] The end of the entry channel 3 connected to the cable accommodating through hole 2 and the end away from the cable accommodating through hole 2 are both chamfered.

[0036] The cable accommodating through hole 2 and the entry channel 3 are both provided with chamfers at both ends of the cable accommodating through hole 2 in the axial direction.

[0037] The line card body 1 is also provided with a mounting through hole 4 for fixing the line card body 1 .

[0038] The central axis of the installation through hole 4 is perpendicular to the central axis of the cable accommodating through hole 2 .

[0039] The line card body 1 is also provided with a positioning column 5 .

[0040] The positioning column 5 is arranged on the end surface of the line card body 1 where one end of the installation through hole is located.

[0041] When in use, the utility model adopts a machining method, and the material used is a common aluminum alloy with high strength. According to the current use requirements, the utility model is designed with a small size and does not take up space. The installation method is fixed with M2.5 screws, wherein the column with a diameter of 1.5mm next to the installation hole 4 serves as a positioning column 5 to prevent the line card from rotating during installation. The entry channel 3 of the utility model adopts an angled method, and this angle is greater than the required bending radius of the cable used. This angle can be modified according to the bending radius of the cable used. The current design angle is 150°. When placing the cable, the cable can be bent according to this angle and inserted into the cable accommodating hole 2 of the utility model. After the cable is inserted, the cable will not be squeezed inside, and the cable is not easy to pop out. It is especially practical for sensitive cables such as optical fiber cables. The wire diameter is equal to the size of the entry channel 3 or has a negative working difference to ensure that the cable can be easily inserted.

[0042] The utility model has a small volume, a size that can be adjusted according to the use environment, and is easy to process; it has a threaded hole and is fixed with screws, has high reliability, and is easy to operate; and for cables that cannot be squeezed, the path of the cables can be limited, and is highly practical.

Claims

1. A printed circuit board fixed line card, comprising a line card body, characterized in that: The line card body is provided with a cable accommodating through hole penetrating two corresponding side surfaces of the line card body; Two corresponding limit blocks are fixedly arranged on the line card body, and the area between the two limit blocks is an entry channel, one end of the entry channel is connected to the cable accommodating through hole, and the other end of the entry channel extends out of the line card body in a direction away from the cable accommodating through hole; In the axial direction of the cable accommodating through hole, the entry channel penetrates two corresponding side surfaces of the line card body; The entry channel is bent in the axial direction of the cable accommodating through hole.

2. A printed circuit board fixable line card as claimed in claim 1, characterized in that: The opening distance of the entry channel is equal to or matched with the wire diameter of the cable with a negative tolerance.

3. A printed circuit board fixable line card as claimed in claim 2, characterized in that: The entry channel includes channels connected to each other at both ends, namely a first channel and a second channel. The central axes of the first channel and the second channel are located in the same plane, and the angle between the central axes of the first channel and the second channel is an obtuse angle.

4. A printed circuit board fixable line card as claimed in claim 3, characterized in that: The angle between the central axes of the first channel and the second channel is 150 degrees.

5. A printed circuit board fixable line card as claimed in claim 4, characterized in that: The end of the entry channel connected to the cable accommodating through hole and the end away from the cable accommodating through hole are both chamfered.

6. A printed circuit board fixable line card as claimed in claim 5, characterized in that: The cable accommodating through hole and the entry channel are both provided with chamfers at both ends of the cable accommodating through hole in the axial direction.

7. A printed circuit board fixable line card as claimed in any one of claims 1 to 6, characterized in that: The line card body is also provided with a mounting through hole for fixing the line card body.

8. A printed circuit board fixable line card as claimed in claim 7, characterized in that: The central axis of the installation through hole is perpendicular to the central axis of the cable accommodating through hole.

9. A printed circuit board fixable line card as claimed in claim 8, characterized in that: The line card body is also provided with a positioning column.

10. A printed circuit board fixable line card as claimed in claim 9, characterized in that: The positioning column is arranged on the end surface of the line card body where one end of the installation through hole is located.

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