Quickly-radiating monitorable high-power charging cable

Abstract

The utility model relates to the field of cable production, in particular to a quick-radiating monitorable high-power charging cable, which comprises two electric energy transmission cores with opposite electrodes arranged in a heat-conducting braided sheath, a communication control unit and a grounding wire core arranged between the two electric energy transmission cores, the communication control unit is positioned on the upper sides of the two electric energy transmission cores, and the grounding wire core is positioned on the lower side of the communication control unit. The grounding wire core is located on the lower sides of the two electric energy transmission cores. The electric energy transmission conductor is small in outer diameter, excellent in conductivity and smaller in transmission heating amount, a PTFE high-temperature-resistant material is adopted for insulation, bearing current is larger, an insulating layer is thinner, heat dissipation and control over the outer diameter of a finished cable are better facilitated, gaps in the cable are all tightly extruded through heat conduction silica gel, and heat can be rapidly and evenly heated and conducted outwards in the charging process; real-time temperature measurement can be fed back to the system, and temperature rise is controlled by adjusting power.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable production field especially, and it is a kind of quick heat dissipation monitorable high-power charging cable. BACKGROUND

[0002] In recent years, the global electric vehicle ownership rises sharply, and the demand of users for shortening charging time is increasingly urgent;Traditional charging method takes a long time, which becomes the key factor limiting the further popularization of electric vehicles;

[0003] The high and low of current carrying capacity of cable and environmental temperature and heat dissipation capacity are closely related, traditional charging cable mainly relies on natural heat dissipation, that is, heat dissipation through heat exchange between cable surface and surrounding air, when high-power charging, the heat generated is far more than the amount that natural heat dissipation can dissipate, resulting in high cable temperature, which not only accelerates the aging of cable insulation material, reduces the service life of cable, but also may cause safety hazards, and the development of charging cable with fast heat dissipation capacity is imminent;

[0004] Fast heat dissipation technology can effectively reduce the temperature rise of cable during high-power charging, but in actual working process, environmental temperature rise and other adverse factors still need to be considered, and adding real-time monitoring unit in cable can feedback working temperature condition, and when abnormality occurs, charging parameters can be adjusted in time to ensure the stability of charging process and avoid charging interruption caused by cable failure. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the above-mentioned problems and provides a kind of quick heat dissipation monitorable high-power charging cable.

[0006] The utility model realizes the above-mentioned purpose by the following technical scheme:

[0007] A kind of quick heat dissipation monitorable high-power charging cable, including two electrode opposite electric energy transmission core that heat-conducting braided sheath is equipped with, communication control unit and ground wire core are equipped between the two electric energy transmission core, communication control unit is located on the upside of two electric energy transmission core, ground wire core is located on the downside of two electric energy transmission core, each electric energy transmission core periphery is equipped with temperature sensing optical fiber unit, two electric energy transmission core, ground wire core, communication control unit and two temperature sensing optical fiber units between the heat-conducting braided sheath inside are filled with heat-conducting layer;

[0008] Electric energy transmission core includes electric energy transmission conductor, electric energy transmission conductor outside is wrapped with electric energy transmission insulating layer, and electric energy transmission conductor adopts 6 types silver-plated copper material;

[0009] Ground wire core includes ground conductor, and ground conductor outside is wrapped with ground insulating layer;

[0010] The communication control unit comprises a heat-conducting filling strip, and a plurality of communication control conductors are arranged in annular distribution outside the heat-conducting filling strip.

[0011] Preferably, the power transmission conductor, the grounding conductor and the communication control conductor are made by using the two kinds of twisting modes of bundle wire and complex twisting.

[0012] Preferably, the power transmission insulating layer, the grounding insulating layer and the communication control insulating layer are made of PTFE high-temperature-resistant material.

[0013] Preferably, the heat-conducting layer is made of heat-conducting silica gel material.

[0014] Preferably, the heat-conducting filling strip is made by vulcanization of heat-conducting silica gel, and the outer diameter of the heat-conducting filling strip is determined by the outer diameter and the number of the communication control wire core.

[0015] Preferably, the heat-conducting braided protective layer is made of 304 stainless steel wire and is braided after being twisted, and the braiding density is not less than 95%.

[0016] Compared with the prior art, the beneficial effects are as follows:

[0017] 1. The power transmission conductor has small outer diameter and excellent conductivity, and the transmission heat is smaller.

[0018] 2. The insulation is made of PTFE high-temperature-resistant material, the current carrying capacity is larger, the insulating layer is thinner, and the heat dissipation and the control of the outer diameter of the finished product cable are more favorable.

[0019] 3. The internal gaps of the cable are all tightly extruded by heat-conducting silica gel, and the heat can be quickly and uniformly heated and conducted outward during charging.

[0020] 4. The cable is provided with temperature sensing optical fibers, which can feed back the temperature to the system in real time, and the temperature rise is controlled by adjusting the power.

[0021] 5. The cable is provided with a stainless steel braided layer outside, which can ensure the bending performance of the cable, has better heat conduction and heat dissipation effects, and can effectively protect the internal structure from damage. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is a structural schematic view of the high-power charging cable capable of fast heat dissipation and monitoring.

[0024] Reference signs are explained as follows:

[0025] 1, electric energy transmission core; 2, electric energy transmission conductor; 3, electric energy transmission insulation layer; 4, grounding wire core; 5, grounding conductor; 6, grounding insulation layer; 7, communication control unit; 8, communication control conductor; 9, communication control insulation layer; 10, heat-conducting filling strip; 11, heat-conducting layer; 12, temperature-sensing optical fiber unit; 13, heat-conducting braided sheath. DETAILED DESCRIPTION

[0026] In the description of the utility model, it needs to explain that, unless there is explicit provision and limitation, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0027] The utility model will be further described below in conjunction with the drawings:

[0028] As shown in Figure 1 A kind of fast heat dissipation monitorable high-power charging cable, including heat-conducting braided sheath 13 inside being equipped with two electrode opposite electric energy transmission core 1, communication control unit 7 and grounding wire core 4 are equipped between two electric energy transmission core 1, communication control unit 7 is located on the upside of two electric energy transmission core 1, grounding wire core 4 is located on the downside of two electric energy transmission core 1, each electric energy transmission core 1 periphery is equipped with temperature-sensing optical fiber unit 12, heat-conducting braided sheath 13 inside two electric energy transmission core 1, grounding wire core 4, communication control unit 7 and two temperature-sensing optical fiber unit 12 are filled with heat-conducting layer 11;Electric energy transmission core 1 includes electric energy transmission conductor 2, electric energy transmission conductor 2 outer side is wrapped with electric energy transmission insulation layer 3, electric energy transmission conductor 2 uses 6 type silver-plated copper material;Grounding wire core 4 includes grounding conductor 5, and grounding conductor 5 outer side is wrapped with grounding insulation layer 6;Communication control unit 7 includes heat-conducting filling strip 10, and heat-conducting filling strip 10 outer side is wound with multiple communication control conductor 8 in annular distribution, and each communication control conductor 8 outer side is wrapped with communication control insulation layer 9.

[0029] In the embodiment: electric energy transmission conductor 2, grounding conductor 5 and communication control conductor 8 are all made into two kinds of twisting ways of wire bundle and complex twisting, and resistance is smaller under the same conductor section, and electric conductivity is excellent, and transmission heat output is smaller.

[0030] In the embodiment: the electric energy transmission insulation layer 3, the grounding insulation layer 6 and the communication control insulation layer 9 are all made of PTFE high-temperature-resistant material, the PTFE material has excellent insulation performance, the insulation thickness is thin, and the heat dissipation and lightweight size control of the cable are more favorable.

[0031] In the embodiment: the heat-conducting layer 11 is made of heat-conducting silica gel material, and the heat-conducting filling strip 10 is vulcanized from heat-conducting silica gel; the outer diameter of the heat-conducting filling strip 10 is determined by the outer diameter and the number of the communication control wire core, the gap between the components of the cable is completely filled, and the heat-conducting filling strip 10 has high heat-conducting efficiency, so that the internal heat can be quickly balanced and transferred outward.

[0032] In the embodiment: the heat-conducting braided protective layer 13 is made of 304 stainless steel wire and is braided after being wired, and the braiding density is not less than 95%; the heat-conducting braided protective layer 13 can effectively dissipate the internal heat while protecting the internal cable from mechanical damage.

[0033] Working principle: the electric energy transmission conductor 2 is made of 6-type silver-plated copper material, has smaller resistance and excellent conductivity under the same conductor section, and has smaller transmission heat; the electric energy transmission insulation layer 3, the grounding insulation layer 6 and the communication control insulation layer 9 are all extruded from PTFE high-temperature-resistant material, have a temperature resistance of 260 DEG C, and are favorable for improving the charging current; meanwhile, the PTFE has excellent insulation performance, a thin insulation thickness, and is more favorable for heat dissipation and lightweight size control of the cable; the heat-conducting filling strip 10 and the heat-conducting layer 11 at the center of the communication control unit 7 are both made of heat-conducting silica gel material, the gap between the components of the cable is completely filled, and the heat-conducting filling strip 10 has high heat-conducting efficiency, so that the internal heat can be quickly balanced and transferred outward; the number of wire cores in the communication control unit 7 can be customized according to system requirements, so as to meet the signal transmission and electrical control requirements between devices in the charging process; one temperature-sensing optical fiber unit 12 is arranged near each of the positive electric energy transmission core 1 and the negative electric energy transmission core 1, so that the real-time temperature can be collected and fed back in the charging process; when the cable temperature is higher than the system set threshold, the charging power is reduced to protect the safety of the device; since the heat-conducting layer 11 made of heat-conducting silica gel has low wear resistance and puncture resistance, the heat-conducting braided protective layer 13 is arranged at the outermost part of the cable, and high-quality stainless steel wire is tightly braided, so that the internal heat can be effectively dissipated while the internal cable is protected from mechanical damage.

[0034] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification only illustrate the principle of the utility model; without departing from the spirit and scope of the utility model, the utility model can also have various changes and improvements, and these changes and improvements all fall within the scope of the utility model.

Claims

1. A fast-heat dissipation and high-power charging cable for monitoring, characterized in that: The thermally conductive braided sheath (13) contains two power transmission cores (1) with opposite electrodes. A communication control unit (7) and a grounding core (4) are provided between the two power transmission cores (1). The communication control unit (7) is located on the upper side of the two power transmission cores (1), and the grounding core (4) is located on the lower side of the two power transmission cores (1). Each power transmission core (1) is surrounded by a temperature-sensing fiber optic unit (12). A thermally conductive layer (11) is filled between the two power transmission cores (1), the grounding core (4), the communication control unit (7), and the two temperature-sensing fiber optic units (12) inside the thermally conductive braided sheath (13). The power transmission core (1) includes a power transmission conductor (2), the power transmission conductor (2) is wrapped with a power transmission insulation layer (3), and the power transmission conductor (2) is made of silver-plated copper of type 6. The grounding core (4) includes a grounding conductor (5), and the grounding conductor (5) is wrapped with a grounding insulation layer (6) on the outside; The communication control unit (7) includes a thermally conductive filler strip (10), and a plurality of communication control conductors (8) arranged in a ring are wound around the outside of the thermally conductive filler strip (10). Each communication control conductor (8) is wrapped with a communication control insulating layer (9).

2. The high-power charging cable with rapid heat dissipation and monitoring according to claim 1, characterized in that: The power transmission conductor (2), the grounding conductor (5), and the communication control conductor (8) are all made using two stranding methods: bundled wires and double twisted wires.

3. The high-power charging cable with rapid heat dissipation and monitoring according to claim 1, characterized in that: The power transmission insulation layer (3), the grounding insulation layer (6), and the communication control insulation layer (9) are all made of PTFE high-temperature resistant material.

4. The high-power charging cable with rapid heat dissipation and monitoring according to claim 1, characterized in that: The thermally conductive layer (11) is made of thermally conductive silicone.

5. A high-power charging cable with rapid heat dissipation and monitoring capability according to claim 1, characterized in that: The thermally conductive filler strip (10) is made of thermally conductive silicone vulcanized, and the outer diameter of the thermally conductive filler strip (10) is determined by the outer diameter and number of communication control wire cores.

6. A high-power charging cable with rapid heat dissipation and monitoring capability according to claim 1, characterized in that: The thermally conductive braided protective layer (13) is made of 304 stainless steel wire and braided together, with a braiding density of not less than 95%.

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