CN209880834U - Connecting device for improving crimping reliability - Google Patents
Connecting device for improving crimping reliability Download PDFInfo
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- CN209880834U CN209880834U CN201920608772.1U CN201920608772U CN209880834U CN 209880834 U CN209880834 U CN 209880834U CN 201920608772 U CN201920608772 U CN 201920608772U CN 209880834 U CN209880834 U CN 209880834U
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- cable
- mesh grid
- crimping
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- sleeve
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Abstract
The utility model relates to a connecting device for improving crimping reliability, which comprises a radio frequency connector and a cable component, wherein a connecting end positioned at the end part of the radio frequency connector extends into a cable mesh grid at the end part of the cable component, a crimping sleeve with a circular cross section is coated at the periphery of the cable mesh grid, the inner diameter of the crimping sleeve is slightly larger than the outer diameter of the cable mesh grid, the crimping sleeve is arranged in a shape like the Chinese character '9' at the peripheral cross section of the cable mesh grid, a sleeve dog-ear is also arranged at one side of the crimping sleeve, the crimping sleeve with a relatively larger inner diameter is sleeved at the periphery of the cable mesh grid with a relatively smaller outer wall, the sleeve dog-ear is formed after the crimping sleeve is tightened, and is fixed at one side of the periphery of the crimping sleeve, the self strength of a mesh grid cable is fully utilized, and the tensile strength of the crimping position is effectively improved under the condition, thereby effectively improving the conductivity of the connector under the same specification.
Description
Technical Field
The utility model relates to a connecting device, concretely relates to improve connecting device of crimping reliability.
Background
The connecting method between the radio frequency coaxial cable assembly of the outer conductor of the braided net and the compression joint type radio frequency connector traditionally used in the prior art usually adopts hexagonal jaw compression joint to realize local point type compression contact, wherein the outer wall of the connector is extruded through the hexagonal inner wall of an external sleeve after deformation, meanwhile, the braided net layer of the cable is clamped between the inner wall of the external sleeve and the outer wall of the radio frequency connector, and the tensile strength of the cable assembly is realized through the material strength adopted by the braided net of the cable at the clamped and extruded part; the ratio of the extrusion force-bearing part to the circumference of the outer wall of the connector tail part is about 55.11%, because the cable braided net is composed of dozens or hundreds of single braided filaments, the tensile strength of the cable after compression joint can only be utilized to about 55.11% of the total quantity of the cable braided net, only about 55.11% of the tensile strength equivalent to the cable self is utilized on the cable component, and about 44.89% of the tensile strength is not completely utilized.
SUMMERY OF THE UTILITY MODEL
To the not enough and defect that exists among the prior art, the utility model provides an improve connecting device of crimping reliability and crimping method thereof.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides an improve connecting device of crimping reliability which characterized in that: the cable assembly comprises a radio frequency connector and a cable assembly, wherein a connecting end at the end of the radio frequency connector extends into a cable mesh grid at the end of the cable assembly, a crimping sleeve with a circular cross section is wrapped on the periphery of the cable mesh grid, the inner diameter of the crimping sleeve is slightly larger than the outer diameter of the cable mesh grid, the crimping sleeve is arranged on the periphery of the cable mesh grid in a 9-shaped cross section, and a sleeve bevel is further arranged on one side of the crimping sleeve.
Further, the sleeve bevel covers the outer circumference of the crimping sleeve, and the covering length of the sleeve bevel is smaller than 1/8 of the circumference of the outer circumference of the crimping sleeve.
Furthermore, the cable mesh grid comprises a cable expanding part and a cable sleeve part which are arranged in an expanding manner along the direction from the cable assembly to the radio frequency connector, the connecting end head extends into the cable mesh grid at the end part of the cable assembly, and the outer wall of the top end of the connecting end head is in an inclined plane shape matched with the inner wall of the cable expanding part.
Further, a first gap is formed between the top end of the connecting terminal and the inner wall of the cable flaring part.
Further, the radio frequency connector is close to one end of the cable assembly, a connecting end head, an end head middle part and an end head root part are sequentially arranged in the direction from the cable assembly to the radio frequency connector, the radial size of the connecting end head is smaller than that of the end head middle part, and the radial size of the end head middle part is smaller than that of the end head root part.
Furthermore, one end of the crimping sleeve close to the cable assembly is wrapped on the periphery of the cable mesh grid, and one end of the crimping sleeve close to the radio frequency connector is abutted to the radial section of the middle of the end head.
Further, a second gap exists between one end, close to the radio frequency connector, of the cable mesh grid and the radial section of the middle portion of the end head.
Furthermore, a plurality of stop rings are radially arranged on the periphery of the middle part of the end head, and at least one stop ring is positioned at the end part of the middle part of the end head, which is close to the cable assembly, in the axial direction.
Furthermore, the periphery of the root of the end is embedded with a positioning block, and the periphery of the root of the end is in threaded connection with a fastening nut.
The utility model has the advantages that:
(1) through with the crimping sleeve pipe overcoat that the internal diameter is great relatively in the periphery of the cable mesh grid that the outer wall is less relatively to tighten up simultaneously and form the sleeve pipe dog-ear behind the crimping sleeve pipe and be fixed in one side of crimping sleeve pipe periphery with the sleeve pipe dog-ear, make full use of braided wire cable self intensity effectively improves the tensile strength at crimping position under the condition of not increasing cable and connector specification, and then effectively improves the electric conductivity of the connector under the same specification.
(2) The cladding of sleeve dog-ear cladding in the sheathed tube periphery of crimping and the cladding length of sleeve dog-ear are less than 1/8 of the sheathed tube periphery girth of crimping to when being convenient for be fixed in the one side of crimping sleeve pipe periphery with the sleeve dog-ear, guarantee the laminating compactness between the outer wall of the sheathed tube inner wall of crimping and cable mesh grid, thereby effectively guarantee the tensile strength and the electric conductivity of connector.
(3) The connecting end of the radio frequency connector stretches into the cable mesh grid at the end of the cable assembly, and the outer wall of the top end of the connecting end is arranged to be an inclined plane matched with the inner wall of the cable outer expanding part, so that axial positioning is realized when the radio frequency connector is connected with the cable assembly, and meanwhile, close contact is guaranteed.
(4) There is first space between the top of connecting the end and the inner wall of the portion that expands outward of cable to when realizing well coordinating between the top outer wall of connecting the end and the inner wall of the portion that expands outward of cable, for the backward movement headspace of the portion that expands outward of cable, thereby avoid connecting thereby the tight contact of top outer wall of connecting the end and the inner wall of the portion that expands outward of cable and lead to connecting the end to prick the portion that expands outward of cable.
(5) The radio frequency connector is close to one end of the cable assembly, and a connecting end head, an end head middle part and an end head root part which are sequentially increased in radial size are sequentially arranged in the direction from the cable assembly to the radio frequency connector, so that axial positioning can be effectively realized when the radio frequency connector is inserted into the cable assembly.
(6) One end of the crimping sleeve close to the cable component is coated on the periphery of the cable mesh grid, one end of the crimping sleeve close to the radio frequency connector is abutted to the radial cross section of the middle of the end head, and therefore the crimping sleeve is sleeved on the cable mesh grid in an sleeved mode, and meanwhile the axial positioning of the crimping sleeve is effectively achieved.
(7) A second gap exists between one end, close to the radio frequency connector, of the cable mesh grid and the radial section in the middle of the end head, so that after the crimping sleeve is positioned in the axial direction, the cable mesh grid can be completely positioned inside the crimping sleeve, and the situation that part of the cable mesh grid is too long and is brought into the space between the crimping sleeve and the radial section in the middle of the end head is avoided.
(8) The outer circumference of the middle part of the end head is radially provided with a plurality of rings of stop rings, and at least one stop ring is positioned at the end part of the middle part of the end head close to the cable assembly in the axial direction, so that the axial positioning effect of the crimping sleeve is further ensured, and even after the crimping sleeve is sleeved in the first stop ring, the crimping sleeve is stopped by the subsequent stop ring to stop the further movement of the crimping sleeve in the axial direction.
(9) The positioning block is embedded in the periphery of the root of the end, and the fastening nut is connected to the periphery of the root of the end in a threaded manner, so that the radio frequency connector is effectively guaranteed to be connected with one side of the cable assembly.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a side view of a connection device for improving crimp reliability according to the present invention;
FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;
fig. 3 is a schematic cross-sectional view of step (2) in the crimping method of the connection device for improving the crimping reliability according to the present invention;
fig. 4 is a schematic cross-sectional view of step (3) in the crimping method of the connection device for improving the crimping reliability according to the present invention;
fig. 5 is a schematic cross-sectional view of step (4) in the crimping method of the connection device for improving the crimping reliability according to the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-5, a connecting device for improving crimping reliability comprises a radio frequency connector 1 and a cable assembly 2, wherein a connecting end 11 at the end of the radio frequency connector 1 extends into a cable mesh grid 21 at the end of the cable assembly 2, a crimping sleeve 3 with a circular cross section is wrapped around the cable mesh grid 21, the inner diameter of the crimping sleeve 3 is slightly larger than the outer diameter of the cable mesh grid 21, the crimping sleeve 3 is arranged in a shape like a Chinese character '9' on the outer peripheral cross section of the cable mesh grid 21, a sleeve dog-ear 31 is further disposed on one side of the crimping sleeve 3, by wrapping the crimping sleeve with a relatively larger inner diameter around the outer periphery of the cable mesh grid with a relatively smaller outer wall, and simultaneously tightening the crimping sleeve to form a sleeve dog-ear and fixing the sleeve dog-ear on one side of the outer periphery of the crimping sleeve, the self strength of the mesh grid cable is fully utilized, and the cable and connector specifications are not, the tensile strength of the compression joint part is effectively improved, and the electric conductivity of the connector under the same specification is further effectively improved.
Specifically, the cover bevel 31 covers the periphery of the crimping cover 3, and the cover length of the cover bevel 31 is smaller than 1/8 of the circumference of the periphery of the crimping cover 3, so that the cover bevel is fixed on one side of the periphery of the crimping cover, and the tightness of fit between the inner wall of the crimping cover and the outer wall of the cable mesh grid is ensured, and the tensile strength and the conductivity of the connector are effectively ensured.
Specifically, cable mesh grid 21 includes that the direction from cable subassembly 2 to radio frequency connector 1 is the cable that expands outward and expands portion 211 and cable sleeve portion 212 of arranging, and connection end 11 stretches into cable mesh grid 21 inside of cable subassembly 2 tip and the top 111 outer wall of connection end 11 sets up to the inclined plane form of mutually supporting with the inner wall of cable expansion portion 211 outward to be convenient for realize axial positioning when radio frequency connector and cable subassembly interconnect, guarantee in close contact with simultaneously.
Specifically, there is still first space 112 between the top 111 of connecting end 11 and the inner wall of the portion 211 that expands outward of cable to when realizing good cooperation between the top outer wall of connecting end and the inner wall of the portion that expands outward of cable, reserve space for moving backward of the portion that expands outward of cable, thereby avoid connecting the top outer wall of end and the inner wall of the portion that expands outward of cable and thereby the tight contact leads to connecting end to prick the portion that expands outward of cable.
Specifically, the radio frequency connector 1 is close to one end of the cable assembly 2, and the connection end 11, the end middle part 12, and the end root part 13 are sequentially arranged in a direction from the cable assembly 2 to the radio frequency connector 1, wherein a radial dimension of the connection end 11 is smaller than a radial dimension of the end middle part 12, and a radial dimension of the end middle part 12 is smaller than a radial dimension of the end root part 13, so that axial positioning is effectively realized while the radio frequency connector is inserted into the cable assembly.
Specifically, the one end cladding that crimping sleeve 3 is close to cable subassembly 2 is in the periphery of cable mesh grid 21, and crimping sleeve 3 is close to the one end butt of radio frequency connector 1 on the radial cross-section of end middle part 12 to when guaranteeing crimping sleeve overcoat in cable mesh grid, effectively realize crimping sleeve at the ascending location of axial.
Specifically, a second gap 213 exists between one end of the cable mesh grid 21 close to the radio frequency connector 1 and the radial cross section of the end head middle part 12, so that after the crimping sleeve is positioned in the axial direction, the cable mesh grid can be completely positioned inside the crimping sleeve, and the situation that part of the cable mesh grid is too long and is brought into the space between the crimping sleeve and the radial cross section of the end head middle part is avoided.
Specifically, the outer circumference of the middle end portion 12 is provided with several rings of stop rings 121, and at least one of the stop rings 121 is located at the end portion of the middle end portion 12 close to the cable assembly 2 in the axial direction, so as to further ensure the axial positioning effect of the crimp sleeve, and even after the crimp sleeve is sleeved in the first stop ring, the crimp sleeve is stopped by the subsequent stop ring to prevent the crimp sleeve from further moving in the axial direction.
Specifically, the positioning block 131 is embedded in the periphery of the end root 13, and the fastening nut 14 is connected to the periphery of the end root 13 through threads, so that the connection of the radio frequency connector far away from one side of the cable assembly is effectively guaranteed.
Specifically, the utility model also provides an improve crimping reliability's connecting device's crimping method, including following step:
1) extending the connecting end of the radio frequency connector into the cable woven mesh at the end of the cable assembly until the inclined plane of the outer wall of the top end of the connecting end is matched with the inner wall of the cable outward-expanding part;
2) sleeving a crimping sleeve on the periphery of the cable mesh grid, so that a gap exists between the inner wall of the crimping sleeve and the outer wall of the cable mesh grid, and meanwhile, ensuring that one end, close to the cable assembly, of the crimping sleeve is coated on the periphery of the cable mesh grid, and one end, close to the radio frequency connector, of the crimping sleeve is abutted against the radial section in the middle of the end head;
3) tightening the crimping sleeve to ensure that the inner wall of the crimping sleeve is completely attached to the periphery of the cable mesh grid;
4) bending the redundant one-angle of the crimping sleeve to one side of the periphery of the crimping sleeve to form a sleeve break angle, so that the crimping sleeve is arranged in a 9-shaped manner on the peripheral section of the cable mesh grid;
5) the sleeve bevel is fixed on one side of the periphery of the crimping sleeve.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides an improve connecting device of crimping reliability which characterized in that: including radio frequency connector (1) and cable subassembly (2), be located connection end (11) of radio frequency connector (1) tip stretch into inside cable mesh grid (21) of cable subassembly (2) tip the periphery cladding of cable mesh grid (21) has cross-section to be circular shape crimping sleeve pipe (3), the internal diameter of crimping sleeve pipe (3) slightly is greater than the external diameter of cable mesh grid (21), just crimping sleeve pipe (3) are in the periphery cross-section of cable mesh grid (21) is arranged for "9" font one side of crimping sleeve pipe (3) still is provided with sleeve pipe dog-ear (31).
2. A connecting device for improving crimp reliability according to claim 1, wherein: the sleeve bevel (31) covers the periphery of the crimping sleeve (3), and the coating length of the sleeve bevel (31) is less than 1/8 of the circumference of the periphery of the crimping sleeve (3).
3. A connecting device for improving crimp reliability according to claim 1, wherein: the cable mesh grid (21) comprises cable outward-expanding parts (211) and cable sleeve parts (212) which are arranged in an outward-expanding mode along the direction from the cable assembly (2) to the radio frequency connector (1), the connecting end head (11) extends into the cable mesh grid (21) at the end part of the cable assembly (2), and the outer wall of the top end (111) of the connecting end head (11) is arranged to be an inclined plane shape matched with the inner wall of the cable outward-expanding part (211).
4. A connecting device for improving crimp reliability according to claim 3, wherein: a first gap (112) is also formed between the top end (111) of the connecting end head (11) and the inner wall of the cable expanding part (211).
5. A connecting device for improving crimp reliability according to claim 1, wherein: radio frequency connector (1) is close to the one end of cable subassembly (2), has set gradually along the direction from cable subassembly (2) to radio frequency connector (1) and has connected end (11), end middle part (12) and end root (13), and wherein the radial dimension of connecting end (11) is less than the radial dimension of end middle part (12), the radial dimension of end middle part (12) is less than the radial dimension of end root (13).
6. A connecting device for improving crimp reliability according to claim 5, wherein: one end, close to the cable component (2), of the crimping sleeve (3) is coated on the periphery of the cable mesh grid (21), and one end, close to the radio frequency connector (1), of the crimping sleeve (3) is abutted to the radial section of the end head middle part (12).
7. A connecting device for improving crimp reliability according to claim 6, wherein: a second gap (213) is formed between one end, close to the radio frequency connector (1), of the cable mesh grid (21) and the radial section of the end head middle part (12).
8. A connecting device for improving crimp reliability according to claim 5, wherein: the outer periphery of the end head middle part (12) is provided with a plurality of stop rings (121) in the radial direction, and at least one stop ring (121) is positioned at the end part of the end head middle part (12) close to the cable assembly (2) in the axial direction.
9. A connecting device for improving crimp reliability according to claim 5, wherein: the periphery of the end root (13) is embedded with a positioning block (131), and the periphery of the end root (13) is in threaded connection with a fastening nut (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920608772.1U CN209880834U (en) | 2019-04-29 | 2019-04-29 | Connecting device for improving crimping reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920608772.1U CN209880834U (en) | 2019-04-29 | 2019-04-29 | Connecting device for improving crimping reliability |
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| Publication Number | Publication Date |
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| CN209880834U true CN209880834U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920608772.1U Active CN209880834U (en) | 2019-04-29 | 2019-04-29 | Connecting device for improving crimping reliability |
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| CN (1) | CN209880834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086004A (en) * | 2019-04-29 | 2019-08-02 | 江苏正恺电子科技有限公司 | A kind of attachment device and its compression bonding method improving crimping reliability |
-
2019
- 2019-04-29 CN CN201920608772.1U patent/CN209880834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110086004A (en) * | 2019-04-29 | 2019-08-02 | 江苏正恺电子科技有限公司 | A kind of attachment device and its compression bonding method improving crimping reliability |
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