A new energy storage cable with automatic temperature regulation function

Abstract

The present invention belongs to the technical field of energy storage cables, and specifically is a new energy storage cable with an automatic temperature regulation function; comprising: an insulating layer, wherein a plurality of conductors are arranged inside the insulating layer; a protective cover, wherein the outer portion of the insulating layer is wrapped with the protective cover; the new energy storage cable with the automatic temperature regulation function also comprises: a temperature regulation unit; the present invention provides a temperature regulation unit in the insulating layer inside the energy storage cable, and the temperature regulation unit can regulate the temperature inside the insulating layer by heat exchange with a coolant, thereby preventing the internal temperature of the energy storage cable from being too high or too low, thereby reducing the aggravation of heat, reducing energy loss, slowing down the aging of insulating materials, and reducing the occurrence of fire; at the same time, it also prevents the reduction of cable flexibility due to low temperature, and increases the durability of the energy storage cable.

Description

Technical Field

[0001] The invention belongs to the technical field of energy storage cables, and in particular is a new energy storage cable with an automatic temperature regulation function. Background Art

[0002] Energy storage cable is a special cable used for power transmission in energy storage systems;

[0003] Temperature regulation is a very important link in the operation of energy storage cables. The electrical conductivity and insulation performance of energy storage cables are closely related to temperature. For example, when the temperature is too high, the resistance of the cable will increase, more heat will be generated, and energy loss will be aggravated. At the same time, excessively high temperature may also accelerate the aging of the insulation material of the cable, reduce the insulation performance, and increase safety risks such as leakage. Excessive temperature may also cause safety accidents such as fire, because energy storage cables usually carry large currents. If the heat is not dissipated in time, heat will accumulate. Once it exceeds the tolerance limit of the surrounding environment and materials, it may ignite the surrounding flammable materials. In addition, too low a temperature will also have an adverse effect on the cable. In a low temperature environment, some cable materials may become brittle, reduce flexibility, and be more easily damaged when subjected to external forces.

[0004] In view of this, the present invention solves the above technical problems by proposing a new energy storage cable with automatic temperature regulation function. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, the temperature inside the insulation layer is adjusted by means of coolant heat exchange, thereby preventing the internal temperature of the energy storage cable from being too high or too low; the present invention provides a new energy energy storage cable with an automatic temperature adjustment function.

[0006] The technical solution adopted by the present invention to solve the technical problem is: a new energy storage cable with automatic temperature regulation function, comprising: an insulating layer, wherein a plurality of conductors are arranged inside the insulating layer; a protective sleeve, wherein the outer portion of the insulating layer is wrapped with the protective sleeve; the new energy storage cable with automatic temperature regulation function also comprises: a temperature regulation unit, wherein the insulating layer is provided with a temperature regulation unit, wherein the temperature regulation unit can regulate the temperature inside the insulating layer by means of heat exchange with a coolant, thereby preventing the temperature inside the energy storage cable from being too high or too low;

[0007] When working, temperature regulation is a very important link in the working process of energy storage cables. The conductivity and insulation properties of energy storage cables are closely related to temperature. For example, when the temperature is too high, the resistance of the cable will increase, which will generate more heat and lead to increased energy loss. At the same time, excessively high temperature may also accelerate the aging of the insulation material of the cable, reduce the insulation performance, and increase safety risks such as leakage. Excessive temperature may also cause safety accidents such as fire, because energy storage cables usually carry a large current. If the heat is not dissipated in time, the heat will accumulate. Once it exceeds the tolerance limit of the surrounding environment and materials, it may ignite the surrounding Inflammable materials; in addition, too low temperature will also have adverse effects on cables; in low temperature environment, some cable materials may become brittle, reduce flexibility, and be more easily damaged when subjected to external forces; therefore, a temperature regulating unit is provided in the insulation layer inside the energy storage cable, and the temperature regulating unit can adjust the temperature inside the insulation layer by means of coolant heat exchange, thereby preventing the internal temperature of the energy storage cable from being too high or too low, thereby reducing the aggravation of heat, reducing energy loss, slowing down the aging of insulation materials, and reducing the occurrence of fire; at the same time, it also prevents the reduction of cable flexibility due to low temperature and increases the durability of the energy storage cable.

[0008] Preferably, the temperature regulating unit comprises: a heat exchange tube, a heat exchange tube is arranged at the central part inside the insulating layer, the conductor is located inside the insulating layer and distributed circumferentially around the heat exchange tube; a temperature regulating box, the heat exchange tube runs through the entire energy storage cable, both ends of the heat exchange tube are fixedly connected with transmission tubes, and the other ends of the two transmission tubes pass through the insulating layer and extend to the outside of the energy storage cable; the other ends of the two transmission tubes are respectively connected to the two ends of the temperature regulating box and communicate with the inside of the temperature regulating box; the inside of the temperature regulating box is slidably connected with a driving plate, and the driving plate A No. 1 spring is fixedly connected between one side of the drive plate and the inner wall of one end of the temperature regulating box, and an annular electromagnet is fixedly connected to the inner wall of the other end of the drive plate, and the annular electromagnet can attract the drive plate when energized; a No. 1 one-way valve is arranged at one end of the two transmission pipes close to the temperature regulating box, and a No. 2 one-way valve is arranged through the drive plate, and the interior of the temperature regulating box, the interior of the transmission pipe and the interior of the heat exchange pipe are all filled with coolant. When the drive plate slides back and forth inside the temperature regulating box, the No. 1 one-way valve and the No. 2 one-way valve can make the coolant flow in the heat exchange pipe in one direction;

[0009] Preferably, a cooling fan and a heating wire are provided outside the temperature regulating box;

[0010] Preferably, a temperature sensor is provided inside the temperature regulating box;

[0011] During operation, the heat exchange tube is located in the central part of the energy storage cable, and the transmission tube can be led out from both ends or the sides of the energy storage cable. The annular electromagnet is intermittently turned on and off, and cooperates with the No. 1 spring to make the drive plate move back and forth in the temperature regulating box. Due to the setting of the No. 1 check valve and the No. 2 check valve, the coolant flows unidirectionally in the heat exchange tube, thereby achieving the purpose of heat exchange and realizing the temperature regulation of the energy storage cable; a temperature sensor is arranged inside the temperature regulating box. When the temperature of the energy storage cable is too high or too low, it can be transmitted to the coolant, and the temperature sensor can detect it, realizing the function of detecting the entire energy storage cable, and then choosing to start the cooling fan or the heating wire to achieve the purpose of heat dissipation and heating of the temperature regulating box, and then realizing the temperature regulation of the entire energy storage cable through the coolant.

[0012] Preferably, a No. 1 cavity is provided inside the insulating layer and between each conductor and the heat exchange tube; a plurality of No. 1 blocks are fixedly provided on the heat exchange tube, and the No. 1 blocks are located in each No. 1 cavity and are linearly arranged in each No. 1 cavity;

[0013] Preferably, each of the No. 1 blocks is a hollow structure and one end of which extends into the interior of the heat exchange tube; the No. 2 block is slidably connected to the interior of the No. 1 block, and two No. 1 holes are symmetrically provided on the side wall of the No. 1 block and located inside the heat exchange tube; a No. 1 plate is fixedly connected between the inner wall of one end of the No. 1 block located outside the heat exchange tube and the No. 2 block, and a No. 2 hole is provided on the No. 1 plate, and the No. 2 hole is far away from the No. 2 block, and an elastic membrane is fixedly connected between the inner wall of one end of the No. 1 block located inside the heat exchange tube and the No. 2 block; No. 3 holes are provided on both sides of the No. 1 plate on the No. 2 block;

[0014] When working, cavity No. 1 opens up part of the area between the heat exchange tube and the conductor, making this part of the area air, which is conducive to heat conduction. Block No. 1 is similar to a heat sink, increasing the heat exchange area. When the temperature is within a reasonable range, block No. 2 blocks the two No. 1 holes. When a certain part of a conductor generates too much heat, the temperature near block No. 1 at the corresponding position rises, plate No. 1 expands, and pushes block No. 2 to move toward the inside of the heat exchange tube. When block No. 2 opens the two No. 1 holes, the coolant flows unidirectionally inside the heat exchange tube, so the coolant flows out of one of the No. 1 holes. It enters block No. 1, passes through hole No. 2, and flows out from another hole No. 1, so that the coolant circulates in this block No. 1, and in disguise, it performs focused heat dissipation here; similarly, when the temperature here drops, plate No. 1 contracts, block No. 2 moves away from the inside of the heat exchange tube, and the elastic membrane stretches. When the two holes No. 1 are opened, the coolant passes through one of the holes No. 1, and due to the proper blocking of the elastic membrane, it passes through one of the holes No. 3, and then passes through hole No. 2, passes through another hole No. 3, and flows out from another hole No. 1, so that the coolant circulates in block No. 1, and this place is heated intensively.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The new energy energy storage cable with automatic temperature adjustment function described in the present invention has a temperature adjustment unit arranged in the insulation layer inside the energy storage cable. The temperature adjustment unit can adjust the temperature inside the insulation layer by means of coolant heat exchange, thereby preventing the internal temperature of the energy storage cable from being too high or too low, thereby reducing the aggravation of heat, reducing energy loss, slowing down the aging of insulating materials, and reducing the occurrence of fire; at the same time, it also prevents the reduction of cable flexibility due to low temperature and increases the durability of the energy storage cable.

[0017] 2. The new energy storage cable with automatic temperature adjustment function described in the present invention has an annular electromagnet that is intermittently powered on and off, and cooperates with a No. 1 spring to enable the drive plate to move back and forth in the temperature adjustment box. Due to the arrangement of the No. 1 check valve and the No. 2 check valve, the coolant flows unidirectionally in the heat exchange tube, thereby achieving the purpose of heat exchange and realizing the temperature adjustment of the energy storage cable; a temperature sensor is arranged inside the temperature adjustment box, and when the temperature of the energy storage cable is too high or too low, it can be transmitted to the coolant, and the temperature sensor can detect it, thereby realizing the function of detecting the entire energy storage cable, and then choosing to start the cooling fan or the heating wire to achieve the purpose of heat dissipation and heating of the temperature adjustment box, thereby realizing the temperature adjustment of the entire energy storage cable through the coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 is a stereogram of the present invention;

[0020] Figure 2 yes Figure 1 A front view of

[0021] Figure 3 is a three-dimensional diagram of the heat exchange tube in the present invention;

[0022] Figure 4 It is a schematic diagram of the structure inside the temperature regulating box of the present invention;

[0023] Figure 5 is a top cross-sectional view of the heat exchange tube in the present invention;

[0024] Figure 6 yes Figure 5 A local enlarged view of point A;

[0025] In the figure: 1. Insulating layer; 2. Conductor; 3. Protective cover; 4. Temperature regulating unit; 41. Heat exchange tube; 42. Temperature regulating box; 43. Transmission tube; 44. Driving plate; 45. Spring No. 1; 46. Ring electromagnet; 47. One-way valve No. 1; 48. One-way valve No. 2; 5. Cavity No. 1; 6. Block No. 1; 61. Block No. 2; 62. Hole No. 1; 63. Plate No. 1; 64. Hole No. 2; 65. Elastic membrane; 66. Hole No. 3. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0027] like Figure 1 , Figure 2 As shown, a new energy storage cable with automatic temperature regulation function described in the present invention comprises: an insulating layer 1, wherein a plurality of conductors 2 are arranged inside the insulating layer 1; a protective cover 3, wherein the outer portion of the insulating layer 1 is wrapped with the protective cover 3; the new energy storage cable with automatic temperature regulation function further comprises: a temperature regulation unit 4, wherein the inner portion of the insulating layer 1 is provided with the temperature regulation unit 4, and the temperature regulation unit 4 can regulate the temperature inside the insulating layer 1 by means of heat exchange with a coolant, thereby preventing the temperature inside the energy storage cable from being too high or too low;

[0028] When working, temperature regulation is a very important link in the working process of energy storage cables. The electrical conductivity and insulation performance of energy storage cables are closely related to temperature. For example, when the temperature is too high, the resistance of the cable will increase, which will generate more heat and lead to increased energy loss. At the same time, excessively high temperature may also accelerate the aging of the insulation material of the cable, reduce the insulation performance, and increase safety risks such as leakage. Excessive temperature may also cause safety accidents such as fire, because energy storage cables usually carry large currents. If the heat is not dissipated in time, the heat will accumulate. Once it exceeds the tolerance limit of the surrounding environment and materials, it may ignite the surrounding Inflammable materials; in addition, too low temperature will also have adverse effects on cables; in a low temperature environment, some cable materials may become brittle, reduce flexibility, and be more easily damaged when subjected to external forces; therefore, a temperature regulating unit 4 is provided in the insulating layer 1 inside the energy storage cable, and the temperature regulating unit 4 can adjust the temperature inside the insulating layer 1 by means of coolant heat exchange, thereby preventing the internal temperature of the energy storage cable from being too high or too low, thereby reducing the aggravation of heat, reducing energy loss, slowing down the aging of insulating materials, and reducing the occurrence of fire; at the same time, it also prevents the reduction of cable flexibility due to low temperature and increases the durability of the energy storage cable.

[0029] As a specific embodiment of the present invention, Figure 1 , Figure 2 , Figure 4As shown, the temperature regulating unit 4 includes: a heat exchange tube 41, a heat exchange tube 41 is arranged at the central part of the insulation layer 1, and the conductor 2 is located inside the insulation layer 1 and distributed circumferentially around the heat exchange tube 41; a temperature regulating box 42, the heat exchange tube 41 runs through the entire energy storage cable, and transmission tubes 43 are fixedly connected at both ends of the heat exchange tube 41, and the other ends of the two transmission tubes 43 pass through the insulation layer 1 and extend to the outside of the energy storage cable; the other ends of the two transmission tubes 43 are respectively connected to the two ends of the temperature regulating box 42 and communicate with the inside of the temperature regulating box 42; the inside of the temperature regulating box 42 is slidably connected to a driving plate 44, and one side of the driving plate 44 is connected to the temperature regulating box 42. A spring 45 is fixedly connected between the inner walls of one end of the temperature regulating box 42, and a ring-shaped electromagnet 46 is fixedly connected to the inner wall of the other end of the driving plate 44. The ring-shaped electromagnet 46 can attract the driving plate 44 when it is energized; a check valve 47 is provided at one end of the two transmission pipes 43 close to the temperature regulating box 42, and a check valve 48 is provided through the driving plate 44. The interior of the temperature regulating box 42, the interior of the transmission pipe 43 and the interior of the heat exchange tube 41 are all filled with coolant. When the driving plate 44 slides back and forth inside the temperature regulating box 42, the check valve 47 and the check valve 48 can make the coolant flow in the heat exchange tube 41 in one direction;

[0030] The temperature regulating box 42 is provided with a cooling fan and a heating wire outside;

[0031] A temperature sensor is provided inside the temperature regulating box 42;

[0032] During operation, the heat exchange tube 41 is located in the central part of the energy storage cable, the transmission tube 43 can be led out from both ends or the sides of the energy storage cable, the annular electromagnet 46 is intermittently turned on and off, and cooperates with the No. 1 spring 45 to make the drive plate 44 move back and forth in the temperature regulating box 42. Due to the setting of the No. 1 check valve 47 and the No. 2 check valve 48, the coolant flows unidirectionally in the heat exchange tube 41, thereby achieving the purpose of heat exchange and realizing the temperature regulation of the energy storage cable; a temperature sensor is arranged inside the temperature regulating box 42. When the temperature of the energy storage cable is too high or too low, it can be transmitted to the coolant, and the temperature sensor can detect it, realizing the function of detecting the entire energy storage cable, and then choosing to start the cooling fan or the heating wire to achieve the purpose of heat dissipation and heating of the temperature regulating box 42, and then realizing the temperature regulation of the entire energy storage cable through the coolant.

[0033] As a specific embodiment of the present invention, Figure 1 , Figure 3 As shown, a cavity No. 1 5 is provided inside the insulating layer 1 and between each conductor 2 and the heat exchange tube 41; a plurality of blocks No. 1 6 are fixedly provided on the heat exchange tube 41, and the blocks No. 1 6 are located in each cavity No. 1 5 and are linearly arranged in each cavity No. 1 5;

[0034] like Figure 5 , Figure 6 As shown, each No. 1 block 6 is a hollow structure and one end thereof extends into the interior of the heat exchange tube 41; a No. 2 block 61 is slidably connected inside the No. 1 block 6, and two No. 1 holes 62 are symmetrically provided through the side wall of the No. 1 block 6 and located inside the heat exchange tube 41; a No. 1 plate 63 is fixedly connected between the inner wall of one end of the No. 1 block 6 located outside the heat exchange tube 41 and the No. 2 block 61, and a No. 2 hole 64 is provided on the No. 1 plate 63, and the No. 2 hole 64 is far away from the No. 2 block 61, and an elastic membrane 65 is fixedly connected between the inner wall of one end of the No. 1 block 6 located inside the heat exchange tube 41 and the No. 2 block 61; No. 3 holes 66 are provided through the No. 2 block 61 and located on both sides of the No. 1 plate 63;

[0035] During operation, the No. 1 cavity 5 opens up part of the area between the heat exchange tube 41 and the conductor 2, so that this part of the area is air, which is conducive to the conduction of heat. The No. 1 block 6 is similar to a heat sink fin, which increases the heat exchange area. When the temperature is within a reasonable range, the No. 2 block 61 blocks the two No. 1 holes 62. When the heat generated at a certain point of a conductor 2 is too high, the temperature near the No. 1 block 6 at the corresponding position rises, and the No. 1 plate 63 expands, pushing the No. 2 block 61 to move toward the inside of the heat exchange tube 41. When the No. 2 block 61 opens the two No. 1 holes 62, since the coolant flows unidirectionally inside the heat exchange tube 41, the coolant flows from one of the No. 1 holes 62 into the No. 1 hole 63. The cooling liquid flows through the No. 1 hole 64 in the block 6 and out of the other No. 1 hole 62, so that the cooling liquid circulates in the No. 1 block 6, and in disguise, focuses on the heat dissipation here; similarly, when the temperature here drops, the No. 1 plate 63 contracts, the No. 2 block 61 moves away from the inside of the heat exchange tube 41, and the elastic membrane 65 stretches. When the two No. 1 holes 62 are opened, the cooling liquid passes through one of the No. 1 holes 62, and due to the proper blocking of the elastic membrane 65, passes through one of the No. 3 holes 66, and then passes through the No. 2 hole 64, passes through the other No. 3 hole 66, and flows out of the other No. 1 hole 62, so that the cooling liquid circulates in the No. 1 block 6, and focuses on heating here.

[0036] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the specific implementation modes of the present invention can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A new energy storage cable with automatic temperature regulation function, comprising: An insulating layer (1), wherein a plurality of conductors (2) are arranged inside the insulating layer (1); A protective cover (3), the insulating layer (1) is wrapped with the protective cover (3); It is characterized in that: the new energy storage cable with automatic temperature adjustment function also includes: A temperature regulating unit (4), wherein the insulating layer (1) is provided with a temperature regulating unit (4), and the temperature regulating unit (4) can regulate the temperature inside the insulating layer (1) by means of heat exchange with a coolant, thereby preventing the temperature inside the energy storage cable from being too high or too low; The temperature adjustment unit (4) comprises: A heat exchange tube (41), wherein the heat exchange tube (41) is arranged at the central part of the insulating layer (1), and the conductor (2) is located inside the insulating layer (1) and distributed circumferentially around the heat exchange tube (41); A temperature regulating box (42), wherein the heat exchange tube (41) passes through the entire energy storage cable, and transmission tubes (43) are fixedly connected at both ends of the heat exchange tube (41), and the other ends of the two transmission tubes (43) pass through the insulating layer (1) and extend to the outside of the energy storage cable; the other ends of the two transmission tubes (43) are respectively connected to the two ends of the temperature regulating box (42) and communicate with the inside of the temperature regulating box (42); a driving plate (44) is slidably connected to the inside of the temperature regulating box (42), and a No. 1 spring (45) is fixedly connected between one side of the driving plate (44) and the inner wall of one end of the temperature regulating box (42), and the other end of the driving plate (44) The inner wall is fixedly connected with an annular electromagnet (46), and the annular electromagnet (46) can attract the driving plate (44) when energized; a No. 1 one-way valve (47) is provided at one end of the two transmission pipes (43) close to the temperature regulating box (42); a No. 2 one-way valve (48) is provided through the driving plate (44); the interior of the temperature regulating box (42), the interior of the transmission pipe (43) and the interior of the heat exchange pipe (41) are all filled with cooling liquid; when the driving plate (44) slides back and forth inside the temperature regulating box (42), the No. 1 one-way valve (47) and the No. 2 one-way valve (48) can cooperate to allow the cooling liquid to flow in one direction in the heat exchange pipe (41); A heat dissipation fan and a heating wire are arranged outside the temperature regulating box (42).

2. A new energy storage cable with automatic temperature regulation function according to claim 1, characterized in that: A temperature sensor is arranged inside the temperature regulating box (42).

3. A new energy storage cable with automatic temperature regulation function according to claim 2, characterized in that: A first cavity (5) is provided inside the insulating layer (1) and between each conductor (2) and the heat exchange tube (41); a plurality of first blocks (6) are fixedly arranged on the heat exchange tube (41); the first blocks (6) are located in each first cavity (5) and are linearly arranged in each first cavity (5).

4. A new energy storage cable with automatic temperature regulation function according to claim 3, characterized in that: Each of the No. 1 blocks (6) is a hollow structure and one end thereof extends into the interior of the heat exchange tube (41); the No. 2 block (61) is slidably connected to the interior of the No. 1 block (6); the side wall of the No. 1 block (6) and the portion located inside the heat exchange tube (41) are symmetrically provided with two No. 1 holes (62); a No. 1 plate (63) is fixedly connected between the inner wall of one end of the No. 1 block (6) located outside the heat exchange tube (41) and the No. 2 block (61); a No. 2 hole (64) is provided on the No. 1 plate (63), and the No. 2 hole (64) is far away from the No. 2 block (61); an elastic membrane (65) is fixedly connected between the inner wall of one end of the No. 1 block (6) located inside the heat exchange tube (41) and the No. 2 block (61); and No. 3 holes (66) are provided on both sides of the No. 1 plate (63) and the No. 1 plate (63).

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