CN210517005U - Reducing connecting terminal for movable cable of rail transit vehicle - Google Patents
Reducing connecting terminal for movable cable of rail transit vehicle Download PDFInfo
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- CN210517005U CN210517005U CN201921998624.1U CN201921998624U CN210517005U CN 210517005 U CN210517005 U CN 210517005U CN 201921998624 U CN201921998624 U CN 201921998624U CN 210517005 U CN210517005 U CN 210517005U
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- cable
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- movable cable
- terminal
- changeover portion
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Abstract
The utility model discloses a track transportation vehicles reducing binding post for movable cable, including male terminal and female terminal, female terminal is provided with the changeover portion of inside diameter outside grow gradually and the unanimous parcel section of axial internal diameter towards one side of electric wire, the changeover portion is located between female terminal and the parcel section. Compared with the prior art, the utility model discloses a track transportation vehicles reducing binding post for movable cable avoids the sinle silk stress concentration to appear in the cable motion process, has avoided receiving stress inoculation influence and the sinle silk fracture that causes, and changeover portion and parcel section cover the parcel completely to the electric wire and also make the sinle silk receive external environment's influence and reduce, have slowed down sinle silk oxidation, have received the degree of rainwater erosion.
Description
Technical Field
The utility model relates to a track transportation vehicles reducing binding post for movable cable belongs to railcar electrical system design field.
Background
The relative motion between the upper and lower bodies (the car body and the bogie) of the rail transit car is taken as a typical application environment of rail transit, and a movable cable is often required to be arranged between the upper and lower bodies so as to realize the continuity of the return flow of an electric loop of the whole car; the reliability of the connection of the movable cable with the upper and lower bodies of the vehicle through the wiring terminal plays an important role in an electrical system of the subway vehicle, and the working state directly determines the reliability of the control of the electrical system; the movable cable is connected with the bus bars of the upper and lower bodies of the vehicle through a crimping terminal, so that the continuity of normal electric backflow is ensured; the connection between the wiring terminal and the movable cable with high reliability and low failure probability is the key technology of the point.
At present, the connection between a movable cable and a connecting terminal of a rail transit vehicle is shown in figure 1, and the connecting mode is that a common connecting terminal is used for being pressed and connected with the cable and is connected between an upper body and a lower body of the vehicle to form a return passage; the scheme can ensure the continuity of the vehicle electrical backflow passage on the electrical principle; however, the connecting terminals at the two ends of the movable cable are connected with the cable cores in a cold pressing mode, the connecting terminals are fixedly connected with the bus bars on the vehicle body and the bogie, and in addition, a cable insulation system coated on the cable and the crimped connecting terminals cannot continuously cover the cable cores, so that stress concentration is formed at the uncovered part of the cable cores at the tail part of the connecting terminals in the moving process of the movable cable, the fracture risk at the part is aggravated, and the normal operation of the metro vehicle is influenced; once broken, the problem of intrusion into the boundary may occur, which causes great loss to the operator. Meanwhile, because the cable core is not coated in all directions, the cable core can be affected by environmental gas, rainwater erosion and the like in daily use, the oxidation rate of the cable core is increased, and the overall service life of the product is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that need solve is that the sinle silk is not formed stress concentration and easy fracture by the cover department to and the problem that cable oxidation wet, and provide a track transportation vehicles reducing binding post for activity cable.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a track transportation vehicles reducing binding post for activity cable, includes male terminal and female terminal, female terminal is provided with the changeover portion of inside diameter outside gradual grow and the parcel section that the axial internal diameter is unanimous towards one side of electric wire, the changeover portion is located between female terminal and the parcel section.
As a further preferred option, the maximum inner diameter of the transition section corresponds to the inner diameter of the wrapping section.
As a further preferred option, the axial length of the wrapping section is greater than the axial length of the transition section.
As a further preferred solution, the end of the wire insulation sheath is arranged in the transition section by extrusion.
As a further preferred solution, the wrapping section is crimped onto an insulating sheath of the electric wire.
Compared with the prior art, the utility model discloses a track transportation vehicles reducing binding post for movable cable has following advantage: 1. stress concentration of the wire core in the cable movement process is avoided, and wire core fracture caused by stress inoculation influence is avoided; 2. because the wrapping section and the wire insulating sheath are in compression joint to form a fully-wrapped structure on the cable core, the influence of the cable core on external environments (environmental gas, rainwater and the like) is reduced, the degree of oxidation and rainwater erosion of the cable core is reduced, the electrical performance of the product in the use process is improved, and the service life of the product is prolonged; 3. owing to the integral connection of the boundary terminal and the wire insulation sheath of the insulation system, the possibility of large-scale breakage of the wire core caused by breakage of part of the wire core is reduced, and the use safety of the product is improved.
Drawings
FIG. 1 is a prior art block diagram of the present invention;
fig. 2 is a schematic structural diagram of the present invention;
the cable comprises a male terminal 1, a female terminal 2, a transition section 3, a wrapping section 4, a cable core 5 and a cable insulation sheath 6.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The utility model discloses a track transportation vehicles reducing binding post for movable cable, including male terminal 1 and female terminal 2, the new design lies in that female terminal 2 is provided with changeover portion 3 and the unanimous parcel section 4 of axial internal diameter of the outside gradual grow of internal diameter towards one side of electric wire, changeover portion 3 is located between female terminal 2 and parcel section 4, changeover portion 3 adopts the design of reducing, changeover portion 3's anterior segment path copper pipe crimping cable core 5, cable core 5 inserts simultaneously and arranges in female terminal 2, mainly undertakes the current-carrying and compresses tightly the fixed action, back end major diameter copper pipe crimping is on cable insulation crust 6, make binding post accomplish two crimping backs, the copper pipe of terminal and cable insulation system can comprehensive cladding cable core, through using the reducing terminal, make on the vehicle, movable cable between the lower part of the body is connected and is improved.
The tip extrusion of the insulating crust of cable 6 sets up in changeover portion 3, and the biggest internal diameter of changeover portion 3 is unanimous with 4 internal diameters of parcel section, and its internal diameter size is unanimous with the external diameter of the insulating crust of cable 6, has increased the contact surface with the insulating crust of cable 6, improves and adsorbs and frictional force to improve fixed effect.
4 crimping of parcel section is on cable insulation crust 6, and the axial length of parcel section 4 is greater than the axial length of changeover portion 3, guarantees that the cable insulation crust 6 region under the parcel section 4 does not receive external force to influence, guarantees the stability of binding post position circuit.
The utility model discloses an adopt the mode of becoming the crimping pipe diameter, carry out the crimping respectively to the sinle silk of cable and insulating crust, realized the whole cladding to cable core, avoided stress concentration's adverse effect, promoted the anti environmental capability that binding post and cable are connected, increased the life of product, can effectively prevent the cracked further diffusion of sinle silk simultaneously.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a track transportation vehicles reducing binding post for activity cable which characterized in that: including male terminal (1) and female terminal (2), female terminal (2) are provided with changeover portion (3) that the internal diameter outwards gradually becomes big and parcel section (4) that the axial internal diameter is unanimous towards one side of electric wire, changeover portion (3) are located between female terminal (2) and parcel section (4).
2. The diameter-variable connecting terminal for the rail transit vehicle movable cable in claim 1, wherein: the maximum inner diameter of the transition section (3) is consistent with the inner diameter of the wrapping section (4).
3. The diameter-variable connecting terminal for the rail transit vehicle movable cable in claim 1, wherein: the axial length of the wrapping section (4) is greater than that of the transition section (3).
4. The diameter-variable connecting terminal for the rail transit vehicle movable cable in claim 1, wherein: the end part of the wire insulation sheath is arranged in the transition section (3) in an extruding way.
5. The diameter-variable connecting terminal for the rail transit vehicle movable cable in claim 1, wherein: the wrapping section (4) is in crimping connection with an insulating sheath of the wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921998624.1U CN210517005U (en) | 2019-11-19 | 2019-11-19 | Reducing connecting terminal for movable cable of rail transit vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921998624.1U CN210517005U (en) | 2019-11-19 | 2019-11-19 | Reducing connecting terminal for movable cable of rail transit vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210517005U true CN210517005U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921998624.1U Active CN210517005U (en) | 2019-11-19 | 2019-11-19 | Reducing connecting terminal for movable cable of rail transit vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN210517005U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022068437A1 (en) * | 2020-09-30 | 2022-04-07 | 天泽电力(江苏)有限公司 | Waterproof terminal wiring terminal |
| CN114594483A (en) * | 2022-02-25 | 2022-06-07 | 国网内蒙古东部电力有限公司信息通信分公司 | Electric power light path information monitoring facilities based on data processing and calculation |
-
2019
- 2019-11-19 CN CN201921998624.1U patent/CN210517005U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022068437A1 (en) * | 2020-09-30 | 2022-04-07 | 天泽电力(江苏)有限公司 | Waterproof terminal wiring terminal |
| CN114594483A (en) * | 2022-02-25 | 2022-06-07 | 国网内蒙古东部电力有限公司信息通信分公司 | Electric power light path information monitoring facilities based on data processing and calculation |
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