Multi-physical quantity fusion intelligent cable for new energy automobile

Abstract

The invention relates to the technical field of new energy automobile power transmission, in particular to a multi-physical quantity fusion intelligent cable for a new energy automobile, which comprises a copper conductor, a silicon rubber insulating layer arranged outside the copper conductor, a tinned braided shielding layer sleeved outside the silicon rubber insulating layer, and an aluminum-plastic composite belt shielding layer sleeved outside the tinned braided shielding layer. According to the multi-physical-quantity fusion intelligent cable for the new energy automobile, the distributed optical fiber temperature measurement module is directly installed in the cable and used for monitoring the running state of the cable in real time, and the accuracy of monitoring data is improved; the distributed optical fiber temperature measurement module is composed of a chip temperature measurement module and a transmission optical fiber, and a communication module is integrated to realize remote transmission of data, so that the functionality of the cable is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power transmission for new energy vehicles, and in particular to a multi-physical quantity fusion intelligent cable for new energy vehicles. Background Art

[0002] As a key component in the power system of new energy vehicles, the cable of new energy vehicles is mainly responsible for the transmission of electrical energy. It stably and efficiently transmits the electrical energy generated by the battery pack to various parts of the vehicle to ensure the normal operation of new energy vehicles. The cable of new energy vehicles operates under different working conditions, and temperature will be generated inside it, which directly affects the service life of the cable. The current cable detection method only sets a detection unit on the outside. The detection method is very limited, and it is impossible to directly monitor the internal temperature and working conditions of the cable, resulting in inaccurate monitoring data. At the same time, it is impossible to accurately and intuitively display the specific location of the fault, and the compressive strength of the entire cable is not high. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the current cable detection method is very limited, the monitoring data is not accurate enough, it is impossible to accurately and intuitively display the specific location of the fault, and the compressive strength of the entire cable is not high.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a multi-physical quantity fusion intelligent cable for new energy vehicles, including a copper conductor, a silicone rubber insulating layer is arranged outside the copper conductor, a tinned braided shielding layer is sleeved outside the silicone rubber insulating layer, an aluminum-plastic composite tape shielding layer is sleeved outside the tinned braided shielding layer, a silicone rubber sheath is sleeved outside the aluminum-plastic composite tape shielding layer, a distributed optical fiber temperature measurement module is arranged between the aluminum-plastic composite tape shielding layer and the tinned braided shielding layer, and a magnetically controlled temperature guiding and positioning device is arranged on the distributed optical fiber temperature measurement module.

[0005] The distributed optical fiber temperature measurement module includes a chip temperature measurement module and a transmission optical fiber fixed on the magnetically controlled temperature guiding and positioning device.

[0006] The magnetically controlled temperature guiding and positioning device includes a metal temperature guiding ring fixedly sleeved outside the tinned braided shielding layer, an integrally structured metal inner assembly plate fixed on the side wall of the metal temperature guiding ring, a metal outer assembly plate elastically assembled on the side wall of the metal temperature guiding ring, a first electromagnet fixed on the side wall of the metal inner assembly plate, and a second electromagnet installed on the side wall of the metal outer assembly plate.

[0007] The metal inner assembly plate has a circular fixing groove for fixing the first electromagnet, and the chip temperature measurement module is sleeved and fixed around the circular fixing groove.

[0008] Arc-shaped wire grooves communicating with the inside of the circular fixing groove are arranged on both side walls of the metal inner assembly plate.

[0009] A flexible isolation strip is sleeved on the outer side of the outer metal assembly plate.

[0010] Lateral limiting notches matching the arc-shaped wire placement grooves are formed on both sides of the chip temperature measurement module.

[0011] A strip-shaped transition opening matching the second electromagnet is formed on the side wall of the outer metal assembly plate.

[0012] A lateral limiting plate with an integral structure bent outward from the second electromagnet is provided on the side wall of the outer metal assembly plate.

[0013] An arc-shaped limiting block with an integral structure is provided at the connection end of the metal heat conduction ring and the inner metal assembly plate.

[0014] The beneficial effects of the present invention are as follows: (1) In the multi-physical quantity fusion intelligent cable for new energy vehicles of the present invention, a distributed optical fiber temperature measurement module is directly installed inside the cable to monitor the operating state of the cable in real time and improve the accuracy of monitoring data; (2) The distributed optical fiber temperature measurement module is composed of a chip temperature measurement module and a transmission optical fiber, and an integrated communication module is used to realize remote data transmission, improving the functionality of the cable; (3) A magnetically controlled heat conduction positioning device is arranged on the distributed optical fiber temperature measurement module. Once the temperature is abnormal, the magnetically controlled heat conduction positioning device will be automatically activated. Through local expansion, the fault location can be more intuitively displayed. At the same time, a heat dissipation flow channel is formed inside the cable by using the enlarged gap, thereby enhancing the heat dissipation effect of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the drawings and embodiments.

[0016] Figure 1 FIG. is a schematic structural diagram of the present invention.

[0017] Figure 2 FIG. is a cross-sectional view of the present invention.

[0018] Figure 3 FIG. is a top view of the magnetically controlled heat conduction positioning device in the present invention.

[0019] Figure 4 FIG. is a schematic view of the first side of the magnetically controlled heat conduction positioning device in the present invention.

[0020] Figure 5 FIG. is a schematic view of the second side of the magnetically controlled heat conduction positioning device in the present invention.

[0021] Figure 6 FIG. is a schematic structural diagram of the assembly end of the distributed optical fiber temperature measurement module in the present invention.

[0022] Figure 7 It is a schematic diagram of the air circulation inside the cable of the present invention. Specific embodiments

[0023] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner. Therefore, they only show the components related to the present invention.

[0024] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A multi-physical quantity fusion intelligent cable for new energy vehicles shown in the figures includes a copper conductor 1. A silicone rubber insulation layer 2 is arranged outside the copper conductor 1. A tinned braided shielding layer 3 is sleeved outside the silicone rubber insulation layer 2. An aluminum-plastic composite tape shielding layer 4 is sleeved outside the tinned braided shielding layer 3. A silicone rubber sheath 5 is sleeved outside the aluminum-plastic composite tape shielding layer 4. A distributed optical fiber temperature measurement module 6 is arranged between the aluminum-plastic composite tape shielding layer 4 and the tinned braided shielding layer 3. A magnetically controlled temperature guiding and positioning device 7 is arranged on the distributed optical fiber temperature measurement module 6.

[0026] To cooperate with temperature measurement and information transmission, the distributed optical fiber temperature measurement module 6 includes a chip temperature measurement module 61 fixed on the magnetically controlled temperature guiding and positioning device 7 and a transmission optical fiber 62.

[0027] The chip temperature measurement module 61 is a temperature sensor, which is an existing temperature measurement technology and is used to monitor the internal operating state of the cable in real time. At the same time, the transmission optical fiber can realize remote data transmission.

[0028] To cooperate with magnetic control to adjust the gap, the magnetically controlled temperature guiding and positioning device 7 includes a metal temperature guiding ring 71 fixedly sleeved outside the tinned braided shielding layer 3, an integral metal inner assembly plate 72 fixed on the side wall of the metal temperature guiding ring 71, a metal outer assembly plate 73 elastically assembled on the side wall of the metal temperature guiding ring 71, a first electromagnet 74 fixed on the side wall of the metal inner assembly plate 72, and a second electromagnet 75 installed on the side wall of the metal outer assembly plate 73.

[0029] When the temperature at a local position is abnormal, the metal heat conduction ring 71 will direct the temperature to the metal inner mounting plate 72. The chip temperature measurement module 61 at this position detects the abnormal high temperature and activates the first electromagnet 74 and the second electromagnet 75 on one circle of the metal heat conduction ring 71. Between the first electromagnet 74 and the second electromagnet 75, through the way of like poles repelling each other, the second electromagnet 75 drives the metal outer mounting plate 73 to extrude outward, forming an outwardly convex channel at this position. For other positions of the cable, the unilateral first electromagnet 74 and second electromagnet 75 are activated to form a horizontally placed channel. At this time, the high temperature inside the cable will quickly flow outwards. Centrifugal fans can also be pre-set at the cable ends to increase the air circulation speed.

[0030] For lateral fixation, the metal inner mounting plate 72 has a circular fixing groove 721 for fixing the first electromagnet 74, and the chip temperature measurement module 61 is sleeved and fixed around the circular fixing groove 721.

[0031] To cooperate with the lateral straight line and improve durability, arc-shaped wire placement grooves 722 communicating with the inside of the circular fixing groove 721 are provided on both side walls of the metal inner mounting plate 72.

[0032] The lateral connecting wire of the chip temperature measurement module 61 passes through the arc-shaped wire placement groove 722 and is connected to the control end of the first electromagnet 74 for controlling the opening and closing of the first electromagnet 74 and the second electromagnet 75.

[0033] To avoid collision and friction between the first electromagnet 74 and the second electromagnet 75, a flexible isolation strip 731 is sleeved on the outer side surface of the metal outer mounting plate 73.

[0034] To cooperate with the installation and transition, lateral limiting notches matching the arc-shaped wire placement grooves 722 are provided on both sides of the chip temperature measurement module 61.

[0035] The connecting wire of the chip temperature measurement module 61 is led outwards through the lateral limiting notches.

[0036] To cooperate with the assembly of the transmission optical fiber 62, a strip-shaped transition opening 732 matching the second electromagnet 75 is provided on the side wall of the metal outer mounting plate 73.

[0037] The transmission optical fiber 62 passes through the strip-shaped transition opening 732 and is thus not affected by the flipping of the metal outer mounting plate 73.

[0038] To avoid the displacement of the second electromagnet 75 during extrusion and improve the lateral limiting ability, the side wall of the metal outer mounting plate 73 has a laterally limiting plate 733 with an integral structure bent outward from the outside of the second electromagnet 75.

[0039] To ensure the fitting of the contact surface, the connection end of the metal heat conduction ring 71 and the metal inner mounting plate 72 has an arc-shaped limiting block with an integral structure.

[0040] Inspired by the above-described ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A multi - physical - quantity - fusion intelligent cable for new - energy vehicles, comprising a copper conductor (1), characterized in that: The outer side of the copper conductor (1) is provided with a silicone rubber insulating layer (2), the outer side of the silicone rubber insulating layer (2) is sleeved with a tinned braided shielding layer (3), the outer side of the tinned braided shielding layer (3) is sleeved with an aluminum-plastic composite tape shielding layer (4), the outer side of the aluminum-plastic composite tape shielding layer (4) is sleeved with a silicone rubber sheath (5). A distributed optical fiber temperature measurement module (6) is arranged between the aluminum-plastic composite tape shielding layer (4) and the tinned braided shielding layer (3), and a magnetically controlled temperature guiding and positioning device (7) is arranged on the distributed optical fiber temperature measurement module (6); The distributed optical fiber temperature measurement module (6) includes a chip temperature measurement module (61) and a transmission optical fiber (62) fixed on the magnetically controlled temperature guiding and positioning device (7); The magnetically controlled temperature guiding and positioning device (7) includes a metal temperature guiding ring (71) fixedly sleeved on the outer side of the tinned braided shielding layer (3), a metal inner assembly plate (72) of an integral structure fixed on the side wall of the metal temperature guiding ring (71), a metal outer assembly plate (73) elastically assembled on the side wall of the metal temperature guiding ring (71), a first electromagnet (74) fixed on the side wall of the metal inner assembly plate (72), and a second electromagnet (75) installed on the side wall of the metal outer assembly plate (73).

2. The multi-physical quantity fusion intelligent cable for a new energy vehicle according to claim 1, characterized in that: The metal inner assembly plate (72) has a circular fixing groove (721) for fixing the first electromagnet (74), and the chip temperature measurement module (61) is sleeved and fixed around the circular fixing groove (721).

3. The multi-physical quantity fusion intelligent cable for a new energy vehicle according to claim 2, characterized in that: Arc-shaped wire grooves (722) communicating with the inside of the circular fixing groove (721) are arranged on both side walls of the metal inner assembly plate (72).

4. The multi-physical quantity fusion intelligent cable for new energy vehicles according to claim 1, characterized in that: A flexible isolation strip (731) is sleeved on the outer side surface of the metal outer assembly plate (73).

5. The multi-physical quantity fusion intelligent cable for a new energy vehicle according to claim 3, characterized in that: Lateral limiting notches matched with the arc-shaped wire grooves (722) are formed on both sides of the chip temperature measurement module (61).

6. The multi-physical quantity fusion intelligent cable for a new energy vehicle according to claim 1, characterized in that: A strip-shaped transition port (732) matched with the second electromagnet (75) is formed on the side wall of the metal outer assembly plate (73).

7. The multi-physical quantity fusion intelligent cable for a new energy vehicle according to claim 1, wherein: The side wall of the metal outer assembly plate (73) has a lateral limiting plate (733) of an integral structure bent outward from the second electromagnet (75).

8. The multi-physical quantity fusion intelligent cable for a new energy vehicle according to claim 1, wherein: The connection end of the metal temperature guiding ring (71) and the metal inner assembly plate (72) has an arc-shaped limiting block of an integral structure.

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