Isolated flexible fireproof cable and application thereof in new energy automobile

Abstract

The invention relates to the technical field of wire and cable bodies, and discloses an isolated flexible fireproof cable and application thereof in a new energy automobile, the isolated flexible fireproof cable comprises a power transmission structure and a socket assembly, the power transmission structure is connected with the socket assembly, and the power transmission structure and the socket assembly are used for supplying power to the new energy automobile. The power transmission structure comprises a front shell, a limiting plate is arranged in the front shell, and a cable body used for power transmission is arranged in the limiting plate. Through mutual cooperation of components such as a detection spring, a stress plate and a power connection seat, a pressure value of the detection spring is monitored in real time through a pressure sensor on the stress plate; and the plugging state between the plug and the power connection seat is judged based on the detected pressure data, so that the power supply state of the new energy vehicle is monitored in real time, the situation that when the new energy vehicle is in power supply abnormity for a long time, the power supply state cannot be detected and adjusted in time is avoided, and the new energy vehicle is always kept in a good power supply state.

Description

Technical Field

[0001] The present invention relates to the technical field of wire and cable bodies, and in particular to an isolated flexible fireproof cable and application thereof in new energy vehicles. Background Art

[0002] With the global emphasis on environmental protection and the adjustment of energy structure, the new energy vehicle industry is booming. New energy vehicles use electricity as the main power source, and their internal electrical systems are complex and critical. Cables are important carriers of power transmission, and their performance and safety are crucial, especially an isolated flexible fireproof cable.

[0003] The Chinese patent with application number CN202020833555.5 discloses a fire-proof cable for new energy vehicles, including an outer sheath and an inner sheath located inside the outer sheath. The polyvinyl chloride insulation layer is covered with an oxygen insulation layer, the oxygen insulation layer is covered with a shielding layer, the shielding layer is covered with a heat dissipation layer, the heat dissipation layer is located in a closed space, and the closed space is filled with a thermally conductive silicone rubber filling layer. A plurality of axial heat dissipation through holes evenly distributed around the circumference are provided on the side of the heat-resistant layer close to the outer sheath.

[0004] According to the above-mentioned prior art, it is found that when the battery normally supplies power to the entire vehicle through the cable body, the new energy vehicle may vibrate or shake as a whole due to unexpected conditions such as road conditions during driving, which may cause the connection between the cable body and the plug to loosen, resulting in unstable power transmission. In addition, if the vibration or shaking amplitude of the vehicle is too large, the connection between the cable body and the socket may fall off, causing the power system of the entire vehicle to be interrupted, creating a huge safety hazard. At the same time, if the power cannot be cut off in time in extreme situations such as fire or excessive temperature, it will cause more serious dangerous conditions.

[0005] Therefore, it is necessary to solve the above problems through an isolated flexible fire-proof cable and its application in new energy vehicles. Summary of the invention

[0006] The purpose of the present invention is to provide an isolated flexible fireproof cable and its application in new energy vehicles to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: an isolated flexible fireproof cable, comprising a power transmission structure and a socket assembly, wherein the power transmission structure and the socket assembly are connected to each other, and the power transmission structure and the socket assembly are used to supply power to new energy vehicles, wherein the power transmission structure comprises a front shell, wherein a limit plate is provided inside the front shell, wherein a cable body for power transmission is provided inside the limit plate, and the limit plate is movably connected to the outer surface of the cable body; The output end of the cable body is provided with a plug for connecting to a power source, the interior of the cable body is filled with flame retardant, a protective sleeve is sleeved on the outer surface of the cable body close to the limiting plate, one end of the protective sleeve is connected to one side of the limiting plate, and a pressing plate is provided at the end of the protective sleeve close to the plug, the diameter of the pressing plate is higher than the plug, and one side of the pressing plate is in contact with the plug.

[0008] Preferably, the power transmission structure also includes a rear shell, one side of the rear shell is interconnected with the front shell, an electric control rail is provided inside the rear shell, two electromagnetic sliders adapted thereto are provided inside the electric control rail, a first guide plate and a second guide plate are provided on a side of each electromagnetic slider away from the electric control rail, and through holes are provided inside the first guide plate and the second guide plate, and the cable body passes through the first guide plate and the second guide plate respectively through the through holes.

[0009] Preferably, two telescopic rods are symmetrically arranged on the inner wall of the through hole on the second drainage plate, and an arc plate for clamping the outer surface of the cable body is arranged at one end of each telescopic rod close to the cable body, and a return spring is arranged at the outer side of each arc plate close to the telescopic rod, and the other end of each return spring is arranged inside the through hole, and an electromagnetic sheet is arranged on the side of each arc plate facing the cable body; An elastic sheet for squeezing the cable body is provided on the inner wall of the through hole on the first drainage plate, and the elastic sheet is in an arc shape and is made of copper.

[0010] Preferably, a plurality of air inlet holes are provided at one end of the protective sleeve close to the limiting plate, and the rear shell is interconnected with the protective sleeve through the air inlet holes. The number of the protective sleeves, cable bodies and plugs is set to six, and each of the protective sleeves, cable bodies and plugs is electrically connected to the socket assembly, and each of the protective sleeves, cable bodies and plugs is distributed in a rectangular array inside the limiting plate.

[0011] Preferably, when the protective sleeve is in the first working state, the second guide plate does not move, the electromagnetic sheet on the arc plate is set to an open state, and the arc plate is in a clamping state on the outer surface of the cable body at this time, the first guide plate moves toward the limit plate through the electromagnetic slider, and the protective sleeve is in an extended state; When the protective cover is in the second working state, the second guide plate moves away from the limit plate through the electromagnetic slider, the electromagnetic sheet is in the open state, the arc plate clamps the outer surface of the cable body, the position of the first guide plate does not change, and the protective cover is in the contracted state.

[0012] Preferably, the socket assembly includes an insertion plate, a limit rod is provided on the outer surface of the insertion plate, a fixing block is threadedly provided on the outer surface of the limit rod, the other side of the fixing block is interconnected with the outer surface of the front shell, and a power socket is provided on the side of the insertion plate facing the front shell, and the side of the power socket facing the front shell is connected to the cable body through a plug.

[0013] Preferably, a detection spring for detecting the tightness of the plug is provided on the side of the plug board close to the power socket, and a force plate is provided on the end of the detection spring away from the power socket. The side of the force plate facing the front shell is in contact with one side of the plug, and the side of the force plate facing the detection spring is provided with a pressure sensor for monitoring the pressure state of the detection spring.

[0014] The present invention also provides an application of an isolated flexible fireproof cable in new energy vehicles. The pressure value of the detection spring is monitored in real time by a pressure sensor, and the plug-in state between the plug and the power socket is judged based on the detected pressure data, thereby realizing real-time monitoring of the power supply state of the new energy vehicle, avoiding the situation that when the new energy vehicle is in a power supply abnormality for a long time, it is impossible to detect and adjust the power supply state in time, so that the new energy vehicle always maintains a good power supply state. In addition, based on the pressure data monitored by the pressure sensor and judging that the plug and the power socket are in a loose or detached state, the electric control slide rail is then controlled to move the first guide plate, and the gas is controlled to enter the protective cover, so that the protective cover is in an extended state, and a thrust is generated on one side of the plug, thereby reducing the distance between the plug and the power socket, so that the plug and the power socket are in a normal plug-in state, thereby ensuring that the power supply distance of the new energy vehicle is always in a normal state, and solving the problem that the cable body becomes loose or detached due to shaking or vibration generated during the movement of the new energy vehicle.

[0015] Technical effects and advantages of the present invention: 1. The present invention realizes real-time monitoring of the power supply status of new energy vehicles by setting up the mutual cooperation of components such as detection spring, force plate and power socket, and monitoring the pressure value of the detection spring in real time through the pressure sensor on the force plate, and judging the plugging state between the plug and the power socket based on the detected pressure data, so as to avoid the situation that the new energy vehicle is in a power supply abnormality for a long time, and the power supply status cannot be detected and adjusted in time, so that the new energy vehicle always maintains a good power supply state.

[0016] 2. The present invention sets the mutual cooperation of the first guide plate, the second guide plate, the arc plate and the electromagnetic plate and other components, and judges based on the pressure data monitored by the pressure sensor whether the plug and the power socket are in a loose or detached state, and then controls the electric control slide rail to move the first guide plate, and controls the gas to enter the protective cover to make the protective cover in an extended state, and generates a thrust on one side of the plug, thereby reducing the distance between the plug and the power socket, so that the plug and the power socket are in a normal plug-in state, thereby ensuring that the power supply of the new energy vehicle is always in a normal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention in an open state; Figure 3 It is a schematic diagram of the pressing plate and related structures of the present invention; Figure 4 It is a schematic diagram of the assembly structure of the first guide plate, the second guide plate and the cable body of the present invention; Figure 5 It is a schematic diagram of the air inlet and related structures of the present invention; Figure 6 This is a schematic diagram of the arc plate and related structures of the present invention; Figure 7 It is a schematic diagram of the assembly structure of the electric control slide rail and the electromagnetic slide block of the present invention; Figure 8 It is a schematic structural diagram of the installation state of the telescopic rod and the return spring of the present invention; Fig. 9 This is a schematic diagram of the working state of the second drainage plate of the present invention.

[0018] In the figure: 1. power transmission structure; 101. front shell; 102. rear shell; 103. cable body; 104. first guide plate; 105. second guide plate; 106. limit plate; 107. fixing block; 108. plug; 109. protective cover; 110. pressing plate; 111. elastic sheet; 112. air inlet; 113. arc plate; 114. telescopic rod; 115. electromagnetic slider; 116. electric control slide rail; 117. reset spring; 118. electromagnetic sheet; 2. socket assembly; 201. plug board; 202. power socket; 203. detection spring; 204. force plate; 205. limit rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Example 1 The present invention provides Figures 1 to 9 An isolated flexible fireproof cable is shown, comprising a power transmission structure 1 and a socket assembly 2, the power transmission structure 1 and the socket assembly 2 are interconnected, the power transmission structure 1 and the socket assembly 2 are used to supply power to new energy vehicles, the power transmission structure 1 comprises a front shell 101, a limit plate 106 is provided inside the front shell 101, a cable body 103 for power transmission is provided inside the limit plate 106, the limit plate 106 is movably connected to the outer surface of the cable body 103, a plug 108 for connecting to a power source is provided at the output end of the cable body 103, the interior of the cable body 103 is filled with a flame retardant, a protective sleeve 109 is sleeved on the outer surface of the cable body 103 close to the limit plate 106, one end of the protective sleeve 109 is interconnected with one side of the limit plate 106, a pressing plate 110 is provided at one end of the protective sleeve 109 close to the plug 108, the diameter of the pressing plate 110 is higher than that of the plug 108, and one side of the pressing plate 110 is in contact with the plug 108.

[0021] The power transmission structure 1 also includes a rear shell 102, one side of the rear shell 102 is interconnected with the front shell 101, an electric control rail 116 is provided inside the rear shell 102, and two electromagnetic sliders 115 adapted thereto are provided inside the electric control rail 116, and a first guide plate 104 and a second guide plate 105 are provided on a side of each electromagnetic slider 115 away from the electric control rail 116, and through holes are provided inside the first guide plate 104 and the second guide plate 105, and the cable body 103 passes through the first guide plate 104 and the second guide plate 105 respectively through the through holes.

[0022] When in use, by setting the front shell 101 and the rear shell 102, the cable body 103 and the socket assembly 2 are protected to prevent the cable body 103 and the socket assembly 2 from being damaged when subjected to external force or vibration, which makes it impossible for the new energy vehicle to be powered normally. In addition, by setting the electric control slide rail 116 and two electromagnetic sliders 115 on the inner wall of the rear shell 102, the first guide plate 104 and the second guide plate 105 are controlled to slide inside the electric control slide rail 116 through the electromagnetic slider 115 according to needs. When the first guide plate 104 and the second guide plate 105 are not in a moving state, the multiple hanging cable bodies 103 are guided to avoid entanglement during long-term use, which is not conducive to the later inspection and maintenance of the cable body 103.

[0023] Two telescopic rods 114 are symmetrically provided on the inner wall of the through hole located on the second guide plate 105, and each telescopic rod 114 is provided with an arc plate 113 for clamping the outer surface of the cable body 103 at one end close to the cable body 103, and each arc plate 113 is provided with a reset spring 117 on the outer side close to the telescopic rod 114, and the other end of each reset spring 117 is arranged inside the through hole, and each arc plate 113 is provided with an electromagnetic sheet 118 on the side facing the cable body 103, and the inner wall of the through hole located on the first guide plate 104 is provided with an elastic sheet 111 for squeezing the cable body 103, and the shape of the elastic sheet 111 is arc-shaped, and the material of the elastic sheet 111 is set to copper.

[0024] When in use, by arranging the telescopic rod 114 on the second guide plate 105, the arc plate 113 located in the through hole of the second guide plate 105 can adjust its position as the telescopic rod 114 is extended or contracted, thereby adjusting the clamping tightness of the outer surface of the cable body 103. At the same time, the magnetic force change generated by the electromagnetic sheet 118 on the arc plate 113 is used to control the extension or extension of the telescopic rod 114, thereby adjusting the distance between the two relative arc plates 113, thereby adjusting the clamping tightness of the cable body 103. In addition, a plurality of elastic sheets 111 are arranged in the through hole of the first guide plate 104 to clamp the outer surface of the cable body 103 on the first guide plate 104, thereby avoiding the cable body 103 from being entangled during use.

[0025] A plurality of air inlet holes 112 are provided at one end of the protective sleeve 109 close to the limiting plate 106, and the rear shell 102 is interconnected with the protective sleeve 109 through the air inlet holes 112. The number of the protective sleeves 109, the cable body 103 and the plug 108 is set to six, and each protective sleeve 109, the cable body 103 and the plug 108 is electrically connected to the socket assembly 2, and each protective sleeve 109, the cable body 103 and the plug 108 are distributed in a rectangular array inside the limiting plate 106.

[0026] When in use, a protective sleeve 109 is provided on the outer surface of the cable body 103 to achieve secondary protection of the power connection point of the cable body 103, so as to avoid the collision or bumping of the external force generated during the operation of the new energy vehicle, which may cause frequent bending of the outer surface of the cable body 103 and damage of the surface insulation layer. In addition, a plurality of air inlet holes 112 are provided on the side of the protective sleeve 109 facing the limit plate 106, so that the interior of the protective sleeve 109 is connected with the space in the rear shell 102. At this time, when the first guide plate 104 and the second guide plate 105 move in the rear shell 102, the gas in the rear shell 102 will be pushed to the interior of the protective sleeve 109 through the air inlet holes 112, so that the protective sleeve 109 is in an extended state, thereby squeezing the plug 108 on the cable body 103.

[0027] When the protective sleeve 109 is in the first working state, the second guide plate 105 does not move, the electromagnetic sheet 118 on the arc plate 113 is set to the open state, and the arc plate 113 is in a clamping state on the outer surface of the cable body 103 at this time, the first guide plate 104 moves toward the limit plate 106 through the electromagnetic slider 115, and the protective sleeve 109 is in an extended state. When the protective sleeve 109 is in the second working state, the second guide plate 105 moves away from the limit plate 106 through the electromagnetic slider 115, the electromagnetic sheet 118 is in the open state, the arc plate 113 clamps the outer surface of the cable body 103, the position of the first guide plate 104 does not change, and the protective sleeve 109 is in a contracted state.

[0028] When in use, by dynamically adjusting the positions of the first guide plate 104 and the second guide plate 105, the first guide plate 104 and the second guide plate 105 push the gas in the rear shell 102 into the protective sleeve 109 during the movement of the electric control slide rail 116, so that the protective sleeve 109 is in an extended state, thereby squeezing the plug 108 on the cable body 103, so that the plug 108 and the power socket 202 maintain a normal connected plug-in state, and the position of the arc plate 113 is controlled by using the electromagnetic sheet 118 on the second guide plate 105, so that the tightness of the arc plate 113 clamping the outer surface of the cable body 103 can be adjusted according to actual needs, thereby avoiding the misalignment of multiple cable bodies 103 during the adjustment process.

[0029] The socket assembly 2 includes an insert plate 201, a limit rod 205 is provided on the outer surface of the insert plate 201, a fixing block 107 is threadedly provided on the outer surface of the limit rod 205, the other side of the fixing block 107 is interconnected with the outer surface of the front shell 101, a power socket 202 is provided on the side of the insert plate 201 facing the front shell 101, the side of the power socket 202 facing the front shell 101 is connected to the cable body 103 through the plug 108, a detection spring 203 for detecting the tightness of the plug 108 is provided on the side of the insert plate 201 close to the power socket 202, and a force plate 204 is provided on the end of the detection spring 203 away from the power socket 202, and the side of the force plate 204 facing the front shell 101 is in contact with one side of the plug 108.

[0030] When in use, a detection spring 203 is set on one side of the plug board 201 close to the power socket 202, and a force plate 204 is set at the end of the detection spring 203 facing the front shell 101. At the same time, when the plug 108 on the cable body 103 and the power socket 202 are in a plugged-in state, the plug 108 and the force plate 204 always keep in contact with each other. In this way, the pressure value of the detection spring 203 is monitored in real time by a pressure sensor, and the plug-in state between the plug 108 and the power socket 202 at this time can be determined, thereby preventing the plug 108 from loosening and causing power supply abnormalities during the use of new energy vehicles.

[0031] In summary, first, the limiting rod 205 on the plug board 201 is used to penetrate the fixing block 107 on the front shell 101, and the limiting rod 205 and the fixing block 107 are always kept in a threaded connection state through a nut, so that the front shell 101 and one side of the plug board 201 are connected to each other, and the installation work is completed. Then, the plug 108 and the power socket 202 are kept in a plugged state, and the cable body 103 is passed through the limiting plate 106, the first guide plate 104 and the second guide plate 105 at one time, so as to complete the wiring work of multiple cables, thereby completing the installation and connection of the cable body 103. , and use the front shell 101 and the rear shell 102 to protect the cable body 103 and the plug board 201, and then set a protective cover 109 on the outer surface of the cable body 103 close to the plug 108 to achieve the purpose of secondary protection of the cable body 103, and at the same time avoid the cable body 103 from being frequently bent when it is subjected to vibration or bumpy sections, so that the insulating layer on the surface of the cable body 103 is cracked or disconnected, and place an appropriate amount of flame retardant inside the insulating layer of the cable body 103 to maximize the safety performance of the cable body 103 when encountering fire or extreme situations.

[0032] Example 2 Although a protective sleeve 109 is provided on the outer surface of the cable body 103 near the limit plate 106 to achieve secondary protection of the outer surface of the cable body 103, high-frequency vibration or shaking will occur when the new energy vehicle enters relatively complex road conditions during driving, which may cause the cable body 103 and the plug 108 to become loose or fall off from the power socket 202, affecting the overall power supply state of the new energy vehicle. At the same time, in the face of extreme situations, such as when the new energy vehicle is damaged by a strong impact, resulting in abnormal temperature increase and combustion, if the power system of the new energy vehicle does not take emergency measures in time, the safety performance will be further reduced, resulting in unpredictable consequences. Based on this, this solution proposes Example 2, and the specific adjustment steps are as follows: By dynamically monitoring the pressure value of the detection spring 203 using the pressure sensor on the extrusion plate, the plug-in state between the plug 108 on the cable body 103 and the power socket 202 can be determined, and based on the comparison of the pressure values, it can be determined whether the cable body 103 and the power socket 202 are in a state of detachment or looseness.

[0033] When the pressure sensor detects that the pressure value of the detection spring 203 is at the preset value, it means that the plug 108 and the power socket 202 are in a normal plug-in state and are not loose or falling off. The pressure sensor can continue to monitor the pressure value of the detection spring 203 in real time without any processing.

[0034] When the pressure sensor detects that the pressure value of the detection spring 203 is lower than the preset value, it means that the plug 108 and the power socket 202 are in a loose plug-in state due to high-frequency vibration or shaking generated during the driving of the new energy vehicle. At this time, the electromagnetic sheet 118 on the arc plate 113 is controlled to release the magnetic attraction, so that the two telescopic rods 114 relatively arranged on the outer side of the arc plate 113 are in an extended state. In this state, the arc plate 113 will move toward the surface of the cable body 103 and maintain a tight clamping effect on the outer surface of the cable body 103, thereby increasing the clamping force of the arc plate 113 on the outer side of the cable body 103, and then the electromagnetic slider 115 in the electric control slide rail 116 is controlled to make the first guide plate 104 move toward the limit plate 106. The cable body 103 moves in the direction of the second guide plate 105, because the second guide plate 105 is in close contact with the outer side of the cable body 103, the cable body 103 will not be pushed toward the limit plate 106 as a whole during the movement of the first guide plate 104, but will only slide along the surface of the cable body 103. During the sliding process, the gas in the rear shell 102 will be transported to the inside of the protective sleeve 109 through the air inlet 112, so that the protective sleeve 109 will extend toward the direction of the plug plate 201, and the pressing plate 110 will be used to squeeze one side of the plug 108 to shorten the distance between the plug 108 and the power socket 202, thereby improving the tightness of the plug 108 and the power socket 202, avoiding looseness between the plug 108 and the power socket 202, and affecting the normal power supply of the new energy vehicle.

[0035] When the pressure sensor detects that the pressure value of the detection spring 203 is far lower than the preset value, and the pressure value infinitely tends to 0, it means that the plug 108 and the power socket 202 are instantly separated due to a large collision or a large shaking of the vehicle. At this time, the electromagnetic sheet 118 on the second guide plate 105 is controlled to release the magnetic attraction, thereby controlling the relatively arranged telescopic rod 114 to extend and retract in the direction of the cable body 103, and controlling the two relatively arranged arc plates 113 to move in the direction of the cable body 103 while tightly clamping the outer surface of the cable body 103, and then controlling the second guide plate 105 to move away from the first guide plate 104. In this process, the plug 108 and the cable body 103 will be moved in the direction of the limit plate 106, and the protective cover 109 is in a contracted state at this time. When the second guide plate 105 moves to the specified position, the plug 108 will maintain the direction and angle of insertion under the limiting action of the protective cover 109 (for specific status, please refer to Fig. 9 , at this time, the protective sleeve 109 is in a retracted state, and the plug 108 keeps close contact with the pressing plate 110 on the protective sleeve 109 during the movement of the second guide plate 105), then the electric control slide rail 116 is controlled to stop the movement of the second guide plate 105, and then the electromagnetic slider 115 on the first guide plate 104 is controlled to control the first guide plate 104 to move in the opposite direction away from the second guide plate 105. At this time, the gas in the rear shell 102 will enter the air inlet 112 with the movement of the first guide plate 104, so that the protective sleeve 109 is slowly filled with gas, and then the electromagnetic sheet 118 on the second guide plate 105 is controlled to make the two opposite arc plates 113 slowly move in the direction away from the cable body 103. At this time, as the gas passes through the inlet The air hole 112 is slowly filled into the protective sleeve 109, so that the protective sleeve 109 slowly stretches and uses the pressing plate 110 to push the plug 108 to move in the direction of the power socket 202. At the same time, the cable body 103 located in the protective sleeve 109 cooperates with the state of the arc plate 113 and is also slowly sent in the direction of the power socket 202. When the protective sleeve 109 is stretched to the maximum, the effect of correcting and reinserting the detached cable body 103 is completed, so that the new energy vehicle maintains a normal power supply state, and then the pressure sensor is used to monitor whether the plug 108 and the power socket 202 are in the plugged state. If the monitored position is not in the plugged state, the above-mentioned adjustment method of straightening and plugging is repeated until the plug 108 and the power socket 202 are in the plugged state.

[0036] When the vehicle is seriously hit or burns unexpectedly, the first guide plate 104 is first controlled to move toward the second guide plate 105, so that the gas in the protective sleeve 109 is sucked into the rear shell 102 through the air inlet 112. At this time, the protective sleeve 109 is in a contracted state, and the pressing plate 110 is no longer in contact with the plug 108. Then the detection spring 203 is controlled to extend rapidly toward the limit plate 106, and the cable body 103 and the plug 108 are ejected toward the limit plate 106, so that the cable body 103 and the plug 108 are The electrical connection with the power socket 202 is disconnected, and then the second guide plate 105 is controlled to move away from the first guide plate 104, and the electromagnetic sheet 118 is controlled to make the arc plate 113 tightly clamp the outer surface of the cable body 103, and then the cable body 103 is pulled in the direction of the second guide plate 105, so that the cable body 103 and the plug 108 are away from the plug board 201 and the power socket 202, so as to avoid the high temperature of the circuit from burning the cable body 103 and increasing the fire, causing serious and unexpected consequences, thereby achieving the purpose of minimizing safety hazards.

[0037] It is worth noting that the detection spring 203 is specifically a common electric spring structure. The working principle of the electric spring is based on the electromagnetic or electromechanical conversion mechanism. By changing the input current or voltage, the electromagnetic force or other related forces can be changed, thereby achieving the adjustment of the equivalent expansion and contraction amount or elastic characteristics.

[0038] Example 3 According to Example 2, it is found that as the second guide plate 105 is used to stretch the cable body 103 and the protective sleeve 109 is in a contracted state, the plug 108 at the end of the cable body 103 is closely fitted with the pressing plate 110 on the protective sleeve 109, so that the plug 108 is straightened, the plug 108 is fitted with the pressing plate 110 and is always consistent with the angle of the power socket 202, and then the first guide plate 104 is used to fill the protective sleeve 109 with gas to make the protective sleeve 109 in an extended state, and the arc plate 113 is controlled to press the cable The tightness of the clamping of the body 103 is achieved by driving the plug 108 and the cable body 103 to be slowly sent toward the power socket 202 as the protective sleeve 109 is extended, so that the plug 108 and the power socket 202 are plugged in. However, during the plugging process, it is impossible to ensure that the plug 108 is fully inserted into the power socket 202, which will cause a gap between the plug 108 and the power socket 202, thereby causing the power supply state of the new energy vehicle to remain in an abnormal state and leaving a safety hazard. Based on this, this solution proposes Example 3, and the specific adjustment steps are as follows: When the plug 108 falls off, the protective cover 109 is extended to make the plug 108 and the power socket 202 plugged into each other, and the pressure sensor is still used to continue to monitor the pressure value of the detection spring 203, and the plug-in state of the plug 108 and the power socket 202 is determined according to the pressure value, thereby determining whether the plug 108 is completely in the plug-in state with the power socket 202.

[0039] When the pressure sensor detects that the pressure value of the detection spring 203 is at the preset value, it means that the plug 108 has been pushed to the power socket 202 by the extension of the protective cover 109 and the normal plug-in state has been completed. At this time, the pressure sensor continues to be used to monitor the pressure spring of the detection spring 203 in real time without any processing.

[0040] When the pressure sensor detects that the pressure value of the detection spring 203 is lower than the preset value, it means that when the plug 108 is inserted into the power socket 202 through the extension state of the protective sleeve 109 in conjunction with the pressing plate 110, the plug 108 is not completely inserted into the power socket 202. At this time, the electromagnetic sheet 118 on the arc plate 113 is controlled to release the magnetic attraction, so that the two oppositely arranged arc plates 113 tightly clamp the outer surface of the cable body 103, and then the electric control slide rail 116 and the electromagnetic slider 115 are controlled to move the first guide plate 104 away from the second guide plate 105, and the inner surface of the rear shell 102 is moved away from the second guide plate 105. The gas is injected into the interior of the protective sleeve 109 through the air inlet 112, causing the protective sleeve 109 to extend toward the plug 108, and the pressing plate 110 is used to apply an extrusion force to the outer surface of the plug 108, and then the first guide plate 104 is controlled to move rapidly toward the second guide plate 105, and this action is repeated, causing the protective sleeve 109 to frequently extend and contract, thereby frequently impacting the outer surface of the plug 108, until the pressure value of the detection spring 203 reaches the preset value and stops, thereby ensuring that the plug 108 and the power socket 202 are always in a normal plug-in state.

[0041] Example 4 The present invention also provides an application of an isolated flexible fireproof cable in a new energy vehicle, wherein the pressure value of the detection spring 203 is monitored in real time by a pressure sensor, and the plugging state between the plug 108 and the power socket 202 is judged based on the detected pressure data, thereby realizing real-time monitoring of the power supply state of the new energy vehicle, avoiding the failure to timely detect and adjust the power supply state when the new energy vehicle is in a power supply abnormality for a long time, so that the new energy vehicle always maintains a good power supply state, and in addition, based on the pressure data monitored by the pressure sensor and judging the plug 108 and the power socket 202, the plugging state of the plug 108 and the power socket 202 is judged based on the detected pressure data. The sockets 202 are in a loose or detached state, and then the electric control slide rail 116 is controlled to move the first guide plate 104, and the gas is controlled to enter the protective sleeve 109, so that the protective sleeve 109 is in an extended state, and a thrust is generated on one side of the plug 108, thereby reducing the distance between the plug 108 and the power socket 202, so that the plug 108 and the power socket 202 are in a normal plug-in state, thereby ensuring that the power supply of the new energy vehicle is always in a normal state, and solving the problem of the cable body 103 becoming loose or falling off due to shaking or vibration generated during the movement of the new energy vehicle.

[0042] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An isolated flexible fireproof cable, comprising a power transmission structure (1) and a socket assembly (2), wherein the power transmission structure (1) and the socket assembly (2) are connected to each other, and the power transmission structure (1) and the socket assembly (2) are used to supply power to a new energy vehicle, characterized in that: The power transmission structure (1) comprises a front shell (101), a limiting plate (106) is provided inside the front shell (101), a cable body (103) for power transmission is provided inside the limiting plate (106), and the limiting plate (106) is movably connected to the outer surface of the cable body (103); The socket assembly (2) comprises a plug plate (201), a detection spring (203) for detecting the tightness of the plug (108) being provided on a side of the plug plate (201) close to the power socket (202), and a force-bearing plate (204) being provided on an end of the detection spring (203) away from the power socket (202); The output end of the cable body (103) is provided with a plug (108) for connecting to a power source, the interior of the cable body (103) is filled with a flame retardant, the outer surface of the cable body (103) close to the limiting plate (106) is sleeved with a protective sleeve (109), one end of the protective sleeve (109) is interconnected with one side of the limiting plate (106), and the end of the protective sleeve (109) close to the plug (108) is provided with a pressing plate (110), the diameter of the pressing plate (110) is higher than that of the plug (108), and one side of the pressing plate (110) is in contact with the plug (108).

2. An isolated flexible fireproof cable according to claim 1, characterized in that: The power transmission structure (1) further comprises a rear shell (102), one side of the rear shell (102) being interconnected with the front shell (101), an electric control slide rail (116) being provided inside the rear shell (102), two electromagnetic sliders (115) matching therewith being provided inside the electric control slide rail (116), a first guide plate (104) and a second guide plate (105) being provided on a side of each electromagnetic slider (115) away from the electric control slide rail (116), and through holes being provided inside the first guide plate (104) and the second guide plate (105), and the cable body (103) respectively passes through the first guide plate (104) and the second guide plate (105) through the through holes.

3. An isolated flexible fireproof cable according to claim 2, characterized in that: Two telescopic rods (114) are symmetrically arranged on the inner wall of the through hole on the second drainage plate (105); an arc plate (113) for clamping the outer surface of the cable body (103) is arranged at one end of each telescopic rod (114) close to the cable body (103); a return spring (117) is arranged at the outer side of each arc plate (113) close to the telescopic rod (114); the other end of each return spring (117) is arranged inside the through hole; and an electromagnetic sheet (118) is arranged on one side of each arc plate (113) facing the cable body (103); An elastic sheet (111) for squeezing the cable body (103) is provided on the inner wall of the through hole on the first drainage plate (104), and the elastic sheet (111) is in an arc shape, wherein the arc convex surface contacts the outer surface of the cable body (103), and the material of the elastic sheet (111) is set to be copper.

4. The isolated flexible fireproof cable according to claim 3, characterized in that: A plurality of air inlet holes (112) are provided at one end of the protective sleeve (109) close to the limiting plate (106); the rear shell (102) is connected to the protective sleeve (109) through the air inlet holes (112); the number of the protective sleeve (109), the cable body (103) and the plug (108) is set to six, and each of the protective sleeve (109), the cable body (103) and the plug (108) is electrically connected to the socket assembly (2); and each of the protective sleeve (109), the cable body (103) and the plug (108) is distributed in a rectangular array inside the limiting plate (106).

5. The isolated flexible fireproof cable according to claim 4, characterized in that: When the protective sleeve (109) is in the first working state, the second guide plate (105) does not move, the electromagnetic sheet (118) on the arc plate (113) is set to an open state, and the arc plate (113) is in a clamping state with respect to the outer surface of the cable body (103), the first guide plate (104) moves toward the limit plate (106) via the electromagnetic slider (115), and the protective sleeve (109) is in an extended state; When the protective sleeve (109) is in the second working state, the second guide plate (105) moves in a direction away from the limit plate (106) through the electromagnetic slider (115), the electromagnetic sheet (118) is still in the open state, the arc plate (113) clamps the outer surface of the cable body (103), the position of the first guide plate (104) does not change, and the protective sleeve (109) is in a retracted state.

6. The isolated flexible fireproof cable according to claim 1, characterized in that: The outer surface of the plug board (201) is provided with a limit rod (205), the outer surface of the limit rod (205) is threadedly provided with a fixing block (107), the other side of the fixing block (107) is interconnected with the outer surface of the front shell (101), and the side of the plug board (201) facing the front shell (101) is provided with an electric socket (202), and the side of the electric socket (202) facing the front shell (101) is interconnected with the cable body (103) through a plug (108).

7. An isolated flexible fireproof cable according to claim 6, characterized in that: The side of the force-bearing plate (204) facing the front shell (101) contacts one side of the plug (108), and the side of the force-bearing plate (204) facing the detection spring (203) is provided with a pressure sensor for monitoring the pressure state of the detection spring (203).

8. Application of an isolated flexible fireproof cable as claimed in claim 7 in new energy vehicles.

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