Heating parking stay wire, parking stay wire unfreezing device and all-terrain vehicle

Abstract

The problem that a parking line in an existing all-terrain vehicle is difficult to heat is solved. According to the heating parking stay wire, the parking stay wire unfreezing device and the all-terrain vehicle, the parking stay wire comprises a steel wire stay wire and a stay wire sheath, the stay wire sheath is arranged on the periphery of the steel wire stay wire in a sleeving mode, and the steel wire stay wire is wrapped in the stay wire sheath; the cable also comprises a heating wire and an insulating sheath. The electric heating wire is wound on the periphery of the stay wire sheath, and the periphery of the electric heating wire is further sleeved with an insulating sheath; it is guaranteed that the steel wire stay wire used for parking can smoothly act in the low-temperature environment, the overall structure is simple, and cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of parking systems, and in particular to a parking cable heating device, a parking cable thawing device and an all-terrain vehicle. Background Art

[0002] UTV, the full name of which is Utility Terrain Vehicle, is a vehicle designed to travel on a variety of complex terrains. UTVs usually have high off-road capabilities and are suitable for use in mines, fields, beaches, mountains and other environments.

[0003] The parking brake system of a UTV is an important safety system that ensures that the vehicle is parked stably when not in operation. Parking brakes are divided into mechanical and electronic types according to their working principles. Mechanical parking brakes are usually composed of mechanical structures such as parking cables and pull rods. This simple design makes them more durable and reliable in harsh off-road environments. Compared with electronic parking brake systems, mechanical parking brakes are lower in cost and more stable; because mechanical parking brakes can work normally without power or electronic system failures, this is a plus for the vehicle's survivability under extreme conditions. Therefore, mechanical parking brakes are widely used on UTVs, such as those shown in patents with application publication numbers CN106364618A and CN117719472A.

[0004] However, when operating a mechanical parking brake, a large force is required to bend the pull rod, especially in a low temperature and humid outdoor environment, the pull wire is damp and frozen, and a larger force is required to control the pull rod, which may even make it impossible to park or release the vehicle. Forced operation may easily damage the parking mechanism and cause the outer skin of the parking wire to be damaged and cracked. Therefore, a parking wire and an all-terrain vehicle that can be heated are needed. Summary of the invention

[0005] The purpose of the present invention is to solve the deficiencies of the prior art and to provide a parking cable heating device, a parking cable thawing device and an all-terrain vehicle.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions: A heated parking cable comprises a steel cable and a cable sheath, wherein the cable sheath is sleeved on the outer periphery of the steel cable to wrap the steel cable in the cable sheath; and further comprises an electric heating wire and an insulating sheath; the electric heating wire is wound around the outer periphery of the cable sheath, and the insulating sheath is sleeved on the outer periphery of the electric heating wire.

[0007] Furthermore, it also includes an insulating thermally conductive sheath, wherein the insulating thermally conductive sheath is sleeved on the outside of the wire pulling sheath, and the insulating thermally conductive sheath is located between the wire pulling sheath and the heating wire.

[0008] Furthermore, the heating wire is spirally wound on the outside of the wire sheath.

[0009] Furthermore, the pitch of the heating wire winding is 10 mm to 20 mm; the length of the heating wire is 1.5 to 3 times the length of the steel wire pulling line.

[0010] Furthermore, the heating wire is made of iron-chromium-aluminum alloy and / or nickel-chromium alloy.

[0011] Furthermore, the electric heating wire is a heating wire of 2 ohms per meter.

[0012] A parking cable thawing device includes the above-mentioned parking cable, and also includes a power supply, a controller and a switch; the heating wire in the parking cable is connected to the controller, and the working state of the heating wire is controlled by the controller; the controller is also connected to the power supply, and a switch is provided between the controller and the power supply.

[0013] Furthermore, it also includes a temperature control unit; the temperature control unit includes a temperature sensor, and the temperature sensor is connected to the controller; the temperature sensor can be used to detect the temperature of the heating wire.

[0014] Furthermore, it also includes a timing unit, which is used to detect the heating time; the timing unit is connected to the controller.

[0015] An all-terrain vehicle comprises the above-mentioned parking cable thawing device, a parking brake and a pull rod; the parking brake is connected to one end of a steel wire in the parking cable, and the other end of the steel wire is connected to the pull rod.

[0016] The beneficial effects of the present invention are: By wrapping an electric heating wire around the outside of the steel wire and the wire sheath, the steel wire and the wire sheath are heated by the electric heating wire. When the steel wire and the wire sheath are stuck together due to freezing, they can be separated in time, ensuring that the steel wire used for parking can move smoothly in a low temperature environment. In addition, the overall structure is simple and the cost is low. By setting a temperature control unit and a timing unit, the heating process of the heating wire can be stopped when the set temperature condition or time condition is met, thereby improving the safety of the heating process of the heating wire; By setting the pitch of the heating wire winding to 10mm~20mm, the heating efficiency of the heating wire and the heat distribution during heating by the heating wire are balanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The parking cable dissection diagram of Example 1; Figure 2 It is a connection block diagram of the parking cable thawing device of Example 1; Figure 3It is a partial schematic diagram of the parking cable thawing device in the all-terrain vehicle of Example 1; Figure 4 It is a schematic diagram of the parking cable part in the existing all-terrain vehicle.

[0018] Description of the symbols in the accompanying drawings: parking cable 1, steel wire cable 11, cable sheath 12, heating wire 13, insulating sheath 14, insulating thermal conductive sheath 15, switch 2, power supply 3, controller 4, pull rod 5, parking brake 6. DETAILED DESCRIPTION

[0019] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0020] It should be noted that the illustrations provided in the following embodiments are only used to schematically illustrate the basic concept of the present invention. The figures only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0021] Embodiment 1: like Figures 1 to 4As shown, a heated parking cable includes a steel wire cable 11 and a cable sheath 12, wherein the cable sheath 12 is sleeved on the outer periphery of the steel wire cable 11, and the steel wire cable 11 is wrapped in the cable sheath 12; in this example, the cable sheath 12 adopts a tubular cable sheath made of rubber material, including but not limited to a mixture of one or more of natural rubber, nitrile rubber, EPDM rubber, silicone rubber, chloroprene rubber, fluororubber, butyl rubber, hydrogenated nitrile rubber, and acrylic rubber; it also includes a heating wire 13 and an insulating sheath 14; the heating wire 13 is wound around the outer periphery of the cable sheath 12, and the insulating sheath 14 is also sleeved on the outer periphery of the heating wire 13, and the material of the insulating sheath 14 can be silicone rubber material; after the heating wire 13 is energized and heated, the entire section of the steel wire cable 11 wrapped by it can be heated to prevent the steel wire cable 11 and the cable sheath 12 from sticking together due to freezing. In this example, in order to prevent the heating wire 13 from melting the rubber wire sheath 12, an insulating thermally conductive sheath 15 is provided between the wire sheath 12 and the heating wire 13, so that the heat generated by the heating wire 13 can be more evenly distributed on the outside of the wire sheath 12, wherein the insulating thermally conductive sheath 15 can be made of polytetrafluoroethylene; the insulating thermally conductive sheath 15 is sleeved on the outside of the wire sheath 12.

[0022] The heating wire 13 is spirally wound on the outside of the wire sheath 12. Considering the heat distribution and heating efficiency of the heating wire 13 after heating, the pitch of the heating wire 13 is 10mm~20mm, which can effectively avoid the steel wire 11 and the wire sheath 12 from being degraded in physical properties such as bending performance due to the dense heating wire 13 wound on the outside, and can also ensure that the heating wire 13 can quickly heat the entire section of the steel wire 11; and the dense winding of the heating wire 13 will also increase the resistance of the heating wire 13, which will reduce its heating speed after power is turned on. Therefore, after balancing the heating efficiency of the heating wire 13 and the heat distribution of the heating, the pitch range of the heating wire 13 is selected to be set to 10mm~20mm, so that the heating wire 13 can achieve comprehensive and rapid heating of the steel wire 11 and the wire sheath 12; in this example, the pitch of the heating wire 13 is set to 15mm.

[0023] The total length of the heating wire 13 is about 1.5 to 3 times the length of the steel wire 11. In this example, a heating wire 13 twice as long as the steel wire is wound around the outer periphery of the steel wire 11. The material of the heating wire 13 is iron-chromium-aluminum alloy and / or nickel-chromium alloy. The resistivity of the iron-chromium-aluminum alloy is relatively high, and it can efficiently convert electrical energy into thermal energy. In addition, the price of the iron-chromium-aluminum alloy is relatively low, so the iron-chromium-aluminum alloy is selected as the material of the heating wire 13 in this example. The heating wire 13 uses a heating wire of 2 ohms per meter, and the length of the parking cable 1 of the whole vehicle is about 1.5m. It can be seen that the length of the heating wire 13 is about 3m, and the total resistance of the heating wire 13 is about 6 ohms. The 6-ohm heating wire 13 can be connected to a conventional 12V vehicle power supply 3. After the connection, the heating power of the heating wire 13 is up to about 24W, so that the heating wire 13 can heat up quickly.

[0024] A parking cable thawing device includes the above-mentioned parking cable 1, and also includes a power supply 3, a controller 4 and a switch 2; the heating wire 13 in the parking cable 1 is connected to the controller 4, and the working state of the heating wire 13 is controlled by the controller 4; the controller 4 is also connected to the power supply 3, and a switch 2 is arranged between the controller 4 and the power supply 3, and the switch 2 is a manual switch or a key switch, etc.; after the switch 2 is started, the controller 4 is powered on, and then the heating state of the heating wire 13 can be controlled; it should be noted that the controller 4 can also control the heating power of the heating wire 13, and the heating power of the heating wire 13 is achieved by controlling the voltage on the heating wire 13, and the control method is an existing method, such as an existing 0~12V numerical control power supply circuit, etc.

[0025] It also includes a temperature control unit; the temperature control unit includes a temperature sensor, which is connected to the controller 4; the temperature sensor can be used to detect the temperature of the heating wire 13; the controller 4 can set the upper limit temperature of heating, and after the heating wire 13 reaches the upper limit temperature of heating, the controller 4 stops the heating of the heating wire 13 or reduces the heating power of the heating wire 13. It should be noted that the controller 4 controls the heating power of the heating wire 13 or stops heating, and adopts the existing control method. In this example, the temperature sensor adopts an NTC thermistor with a negative temperature coefficient, and the thermistor is arranged near the heating wire 13. The thermistor can be close to the heating wire 13 and wrapped between the insulating heat-conducting sheath 15 and the insulating sheath 14; the thermistor is also connected to the controller 4 through a temperature measurement circuit, and the temperature measurement circuit adopts an existing thermistor temperature measurement circuit.

[0026] The device also includes a timing unit, which is used to detect the heating time; the timing unit is connected to the controller 4. The timing unit is used to detect the duration of the heating wire 13 heating operation, and after reaching the set heating time, the controller 4 cuts off the power to the heating wire 13, or reduces the power of the heating wire 13, to prevent the heating wire 13 from overheating and causing irreversible damage to the wire sheath 12.

[0027] It also includes an ambient temperature detection unit, which is used to detect the current ambient temperature, thereby more effectively controlling the heating power of the heating wire 13 to ensure the overall heating effect; if the ambient temperature detected by the ambient temperature detection unit is lower than the set value, the controller 4 controls the heating wire 13 to heat with a higher set power; otherwise, it heats with a lower set power to reduce the overall power consumption of the heating process.

[0028] An all-terrain vehicle includes the above-mentioned parking cable thawing device, and also includes a parking brake 6 and a pull rod 5; the parking brake 6 is connected to one end of a steel wire 11 in the parking cable 1, and the other end of the steel wire 11 is connected to the pull rod 5; after the pull rod 5 is pulled up, the parking brake 6 is clamped by the steel wire 11 to clamp the tire and stop the vehicle.

[0029] During implementation, first start the switch 2 to connect the controller 4 to electricity, and then control the heating wire 13 of the controller 4 to energize, so that the heating wire 13 heats the steel wire pull wire 11 and the wire sheath 12. After reaching the set conditions, such as the set time or the set temperature, the heating wire 13 is controlled to stop heating or reduce the heating power, and then the pull rod 5 can be manipulated to release or clamp the parking brake 6.

[0030] In this example, by wrapping an electric heating wire 13 around the outside of the steel wire pull wire 11 and the wire sheath 12, the steel wire pull wire 11 and the wire sheath 12 are heated by the electric heating wire 13. When the steel wire pull wire 11 and the wire sheath 12 are stuck together due to freezing, they can be separated in time to ensure that the steel wire pull wire 11 used for parking can operate smoothly in a low temperature environment, and the overall structure is simple and the cost is low. By setting a temperature control unit and a timing unit, the heating process of the electric heating wire 13 can be stopped when the set temperature condition or time condition is met, thereby improving the safety of the heating process of the electric heating wire 13. By setting the pitch of the winding of the heating wire 13 to 10mm~20mm, the heating efficiency of the heating wire 13 and the heat distribution when the heating wire 13 is heated are balanced.

[0031] The above description is only a specific example of the present invention and does not constitute any limitation to the present invention. It is obvious that for professionals in this field, after understanding the content and principle of the present invention, various modifications and changes in form and details may be made without departing from the principle and structure of the present invention, but these modifications and changes based on the idea of ​​the present invention are still within the scope of protection of the claims of the present invention.

Claims

1. A heated parking cable, comprising a steel cable (11) and a cable sheath (12), wherein the cable sheath (12) is sleeved on the outer periphery of the steel cable (11) to wrap the steel cable (11) in the cable sheath (12); characterized in that: It also includes a heating wire (13) and an insulating sheath (14); the heating wire (13) is wound around the outer circumference of the pull wire sheath (12), and the insulating sheath (14) is also sleeved on the outer circumference of the heating wire (13).

2. A heated parking cable according to claim 1, characterized in that: It also comprises an insulating heat-conductive sheath (15), wherein the insulating heat-conductive sheath (15) is sleeved on the outside of the wire pulling sheath (12), and the insulating heat-conductive sheath (15) is located between the wire pulling sheath (12) and the heating wire (13).

3. A heated parking cable according to claim 2, characterized in that: The heating wire (13) is spirally wound around the outside of the wire sheath (12).

4. A heated parking cable according to claim 3, characterized in that: The pitch of the winding of the heating wire (13) is 10 mm to 20 mm; the length of the heating wire (13) is 1.5 to 3 times the length of the steel wire pull line (11).

5. The heated parking cable according to claim 1, characterized in that: The material of the heating wire (13) is iron-chromium-aluminum alloy and / or nickel-chromium alloy.

6. A heated parking cable according to claim 5, characterized in that: The electric heating wire (13) is a 2 ohm per meter heating wire.

7. A parking cable thawing device, characterized in that: The parking cable (1) comprises a power supply (3), a controller (4) and a switch (2); the heating wire (13) in the parking cable (1) is connected to the controller (4), and the working state of the heating wire (13) is controlled by the controller (4); the controller (4) is also connected to the power supply (3), and a switch (2) is provided between the controller (4) and the power supply (3).

8. The parking cable thawing device according to claim 7, characterized in that: It also includes a temperature control unit; the temperature control unit includes a temperature sensor, and the temperature sensor is connected to the controller (4); the temperature sensor can be used to detect the temperature of the heating wire (13).

9. The parking cable thawing device according to claim 7, characterized in that: It also includes a timing unit, which is used to detect the heating time; the timing unit is connected to the controller (4).

10. An all-terrain vehicle, characterized in that: The parking cable thawing device comprises the parking cable thawing device as claimed in any one of claims 7 to 9, and further comprises a parking brake (6) and a pull rod (5); the parking brake (6) is connected to one end of a steel wire (11) in the parking cable (1), and the other end of the steel wire (11) is connected to the pull rod (5).

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