A wiring harness device for new energy vehicles

Abstract

The invention discloses a wiring harness device for a new energy vehicle, belonging to the technical field of automobile cables, comprising: a plurality of automobile cable units, a wiring harness mechanism, a cooling unit and a wire tube clamping sleeve; wherein the plurality of automobile cable units are arranged in parallel in the same direction, the wiring harness mechanism is detachably installed on the chassis of the new energy vehicle, and is used to bundle the automobile cable units; a cooling unit is fixed on one side of the wiring harness mechanism along the arrangement direction of the automobile cable units, a wire tube clamping sleeve is sleeved on the cooling unit, a plurality of positioning grooves are arranged on the side wall of the wire tube clamping sleeve, each of the automobile cable units is circumferentially distributed on the periphery of the wire tube clamping sleeve through the positioning grooves, a coolant channel is arranged in the wiring harness mechanism, and the coolant channel is communicated with the cooling unit; the invention can realize the bundling and rapid cooling of the cable units of the new energy vehicle, and avoid heat accumulation at the wiring harness.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile cables, and in particular relates to a wiring harness device for a new energy automobile. Background Art

[0002] At present, new energy vehicles are developing rapidly. Compared with traditional fuel vehicles, the cables used in new energy vehicles need to withstand larger voltages and currents and be bundled and positioned by cable ties. New energy vehicles mostly use high-voltage cables to connect batteries to electrical appliances (such as inverters, motors, etc.) to meet the battery power supply needs of new energy vehicles. However, due to the large amount of current transmitted by cables in new energy vehicles, they generate a lot of heat. Although general wiring harness devices can provide a simple binding effect for automotive cables, the heat in the cable binding point area is relatively concentrated, affecting the safety of use. For example, the invention patent with publication number CN118173318A sets a cooling component in the middle area of ​​the high-voltage harness to achieve cooling and heat dissipation of the high-voltage harness area. Although it can effectively provide cooling and heat conduction effects, the cooling pipe used has a small contact area with the cable, and cooling is provided by air cooling, and the heat conduction effect is general. In addition, for different automotive cables, the heat concentration area varies in size, and most cooling mechanisms cannot adapt to different types of cables for cooling.

[0003] Therefore, it is necessary to provide a new energy vehicle wiring harness device to solve the problems raised in the above background technology. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new energy vehicle wiring harness device, comprising: a plurality of vehicle cable units, a wiring harness mechanism, a cooling unit and a wire tube clamping sleeve; wherein, the plurality of vehicle cable units are arranged in parallel in the same direction, the wiring harness mechanism is detachably installed on the chassis of the new energy vehicle, and is used to bundle the vehicle cable units, a cooling unit is fixed on one side of the wiring harness mechanism along the arrangement direction of the vehicle cable units, a wire tube clamping sleeve is sleeved on the cooling unit, a plurality of positioning grooves are arranged on the side wall of the wire tube clamping sleeve, each of the vehicle cable units is circumferentially distributed on the periphery of the wire tube clamping sleeve through the positioning grooves, a coolant channel is arranged in the wiring harness mechanism, and the coolant channel is connected to the cooling unit;

[0005] The cooling unit comprises: a heat conducting pipe, a liquid cavity is provided inside the heat conducting pipe, a liquid feeding chamber and a liquid draining chamber are provided in the harness mechanism, the liquid feeding chamber and the liquid draining chamber are both connected to the heat conducting pipe through a vertically connected sealing pipe, a pressure control flow component is provided in the sealing pipe connected to the liquid feeding chamber, two flow branches are provided in the pressure control flow component, one of the flow branches is connected to the heat conducting pipe;

[0006] An extension tube is detachably mounted on one end of the heat conducting tube, a gap is provided on the inner wall of the heat conducting tube, another flow branch is connected to the extension tube through the gap, a one-way tube is fixed in the center of the extension tube, and one end of the one-way tube penetrates and extends into the heat conducting tube;

[0007] A central tube is arranged at the center of the heat-conducting tube, and a sealing tube connected to the liquid drainage bin is connected to the central tube.

[0008] Preferably, the wiring harness mechanism comprises: a housing, one side of which is fixed with a connecting cavity, two inner chambers are arranged in the connecting cavity, one of the inner chambers is connected to the coolant channel; through holes are arranged in the two inner chambers, and the liquid delivery chamber and the liquid discharge chamber are connected to each inner chamber through the through holes respectively; a drainage channel is arranged on one side of the inner chamber connected to the liquid discharge chamber;

[0009] A wire harness steel belt is connected to one side of the housing, and a buckle screw is installed on the housing. The wire harness steel belt is used to adjust the tightness of the wire harness through the buckle screw.

[0010] Preferably, a connecting sleeve is fixed at the end of the extension tube, and a plurality of the extension tubes are detachably connected via the connecting sleeve; the number of the extension tubes arranged is adjusted according to the heating extension length of the automobile cable unit.

[0011] Preferably, the pressure control flow assembly comprises: a sliding tube, which is sealingly and slidingly connected in the sealing tube, one end of which is connected to the sealing tube via an internal spring; an outer ring cavity is arranged outside the sealing tube, the outer ring cavity is connected to the sealing tube via a plurality of positioning holes distributed around the circumference, and a connecting hole is opened on the side wall of the sliding tube, the connecting hole can be butted with the positioning hole under the sliding action of the sliding tube;

[0012] The outer ring cavity is provided with a side passage pipe, one end of which is connected to the gap channel;

[0013] An inner ring is coaxially arranged in the sliding tube, and a flow-blocking shaft is arranged on the inner ring through the center of the connecting spring.

[0014] Preferably, when the coolant pressure in the sliding tube is greater than a threshold value, the blocking shaft can form an internal blockage with the end of the sliding tube under the push of the coolant, and the connecting hole is completely connected with the positioning hole.

[0015] Preferably, the inner ring can be slidably fine-tuned to different positions along the axis of the sliding tube.

[0016] Preferably, a connecting rod is provided at one end of the central tube, and the central tube is slidably connected in the heat conducting tube through the connecting rod. A sealing sleeve is provided on the sliding sleeve of the central tube, and the sealing tube is sealed and connected with the central tube through the sealing sleeve.

[0017] A plurality of groups of liquid holes are distributed on the central tube;

[0018] A water-blocking sleeve is fixed at one end of the heat-conducting pipe, the connecting rod is slidably connected in the water-blocking sleeve, a mass block is fixed on the connecting rod, and multiple groups of power springs are distributed above and below the mass block.

[0019] Preferably, an electromagnetic adsorption disk is further provided at the end of the heat conducting tube, and the electromagnetic adsorption disk is magnetically attracted to the mass block when powered on.

[0020] Preferably, a plurality of flow rings are coaxially arranged on the central tube.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The wiring harness mechanism mainly provided in the present invention is used to achieve the wiring harness effect of the cable unit of a new energy vehicle, wherein the cooling unit mainly provided therein can contact and conduct heat with the vehicle cable unit, so as to quickly cool down the vehicle cable unit and avoid heat accumulation, and the pressure flow control component also provided therein effectively controls the distribution of the coolant according to a predetermined flow path through the two flow branches adopted, so as to provide the most suitable cooling effect for the vehicle cable unit according to the specifications of the new energy vehicle cable unit and under different working conditions, thereby extending its life and enhancing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is an overall cross-sectional view of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the wire harness steel belt in the present invention;

[0026] Figure 4 It is a structural schematic diagram of the inner bin in the present invention;

[0027] Figure 5 It is a structural schematic diagram of the pressure flow control component in the present invention;

[0028] Figure 6 It is a structural schematic diagram of the central tube of the present invention;

[0029] In the figure: 1. wiring harness mechanism; 11. coolant channel; 12. wire tube clamping sleeve; 13. liquid delivery bin; 14. liquid discharge bin; 15. sealing tube; 16. housing; 17. connecting cavity; 18. inner bin; 19. through hole; 110. drain channel; 111. wiring harness steel belt; 112. buckle screw; 2. cooling unit; 21. heat pipe; 22. gap channel; 3. pressure control flow assembly; 31. sliding tube; 32. inner spring; 33. outer ring cavity; 34. side through tube; 35. connecting hole; 36. inner ring; 37. flow control shaft; 4. extension tube; 41. one-way tube; 42. connecting sleeve; 5. center tube; 51. connecting rod; 52. envelope; 53. water-proof sleeve; 54. mass block; 55. electromagnetic adsorption disk; 56. flow ring. DETAILED DESCRIPTION

[0030] See also Figure 1-Figure 6 In an embodiment of the present invention, a wiring harness device for a new energy vehicle comprises: a plurality of vehicle cable units, a wiring harness mechanism 1, a cooling unit 2 and a wire tube clamping sleeve 12; wherein, the plurality of vehicle cable units are arranged in parallel in the same direction, the wiring harness mechanism 1 is detachably mounted on the chassis of the new energy vehicle, and is used to bundle the vehicle cable units, a cooling unit 2 is fixed on one side of the wiring harness mechanism 1 along the arrangement direction of the vehicle cable units, a wire tube clamping sleeve 12 is sleeved on the cooling unit 2, a plurality of positioning grooves are arranged on the side wall of the wire tube clamping sleeve 12, and each of the vehicle cable units is circumferentially distributed on the periphery of the wire tube clamping sleeve 12 through the positioning grooves, so that the vehicle cable unit can be quickly cooled by contact heat conduction with the cooling unit, a coolant channel 11 is arranged in the wiring harness mechanism 1, and the coolant channel 11 is connected to the cooling unit 2 for conveying low-temperature coolant;

[0031] The cooling unit 2 comprises: a heat conducting pipe 21, which has a liquid cavity inside, a liquid feeding bin 13 and a liquid draining bin 14 are provided in the wiring harness mechanism 1, and the liquid feeding bin 13 and the liquid draining bin 14 are both connected to the heat conducting pipe 21 through a vertically connected sealing pipe 15, and a pressure flow control component 3 is provided in the sealing pipe 15 connected to the liquid feeding bin 13, and two flow branches are provided in the pressure flow control component 3, one of which is connected to the heat conducting pipe 21; that is, the coolant can enter the heat conducting pipe 21 through the liquid feeding bin 13, so as to realize heat absorption and cooling at the wiring harness of the automobile cable unit, and then the coolant can enter the liquid draining bin 14 through the sealing pipe 15, so as to realize flow circulation;

[0032] An extension tube 4 is detachably mounted on one end of the heat conducting tube 21, a gap 22 is provided on the inner wall of the heat conducting tube 21, another flow branch is connected to the extension tube 4 through the gap 22, a one-way tube 41 is fixed in the center of the extension tube 4, one end of the one-way tube 41 penetrates and extends into the heat conducting tube 21; that is, for automotive cable units of different specifications and different working conditions, in order to meet the length of the cooling area and avoid the automotive cable unit heat collection area being too large, resulting in the cooling unit being unable to be fully applied, an additional extension tube is provided to extend the coverage length of the cooling unit, which has the advantages of:

[0033] Flexible adaptability: The cooling system coverage can be adjusted according to the length and layout requirements of different automotive cable units to ensure that each potential high-temperature area can be effectively cooled;

[0034] Improve cooling efficiency: The extension tube 4 can ensure that the cooling medium is more evenly distributed in the heat collection area of ​​the automotive cable unit, avoiding local overheating and improving the overall heat exchange efficiency and cooling effect;

[0035] Enhanced system stability: Even when operating under complex or extreme conditions, the extended cooling unit can provide more redundant cooling support for the automotive cable unit, enhancing the stability and reliability of the system;

[0036] Easy to maintain and upgrade: The modular extension pipe design makes it easy to adjust the cooling layout according to the needs of vehicle modification or technical upgrades in the future, reducing maintenance costs and difficulties;

[0037] A central tube 5 is provided in the center of the heat conducting tube 21, and the sealing tube 15 connected to the drainage bin 14 is connected to the central tube 5; that is, the coolant in the heat conducting tube 21 can enter the central tube 5, and then flow into the drainage bin 14 through the central tube 5;

[0038] The pressure control flow component 3 controls the flow ratio of the two flow branches through pressure regulation according to the heating power of the automobile cable unit, so that the coolant in the cooling unit 2 is distributed according to the predetermined flow path, ensuring efficient thermal management of the high-heat area.

[0039] In this embodiment, the wiring harness mechanism 1 includes: a housing 16, one side of which is fixed with a connecting cavity 17, two inner chambers 18 are arranged in the connecting cavity 17, one of the inner chambers 18 is connected to the coolant channel 11; through holes 19 are arranged in both inner chambers 18, and the liquid delivery chamber 13 and the liquid discharge chamber 14 are connected to each inner chamber 18 through the through holes 19 respectively; a drain channel 110 is opened on one side of the inner chamber 18 connected to the liquid discharge chamber 14; so that the coolant can be discharged through the drain channel;

[0040] A wire harness steel belt 111 is connected to one side of the housing 16, and a buckle screw 112 is installed on the housing. The wire harness steel belt 111 can adjust the tightness of the wire harness through the buckle screw 112 to adapt to automotive cable units of different lengths and thicknesses.

[0041] As a preferred embodiment, a connecting sleeve 42 is fixed to the end of the extension tube 4, and multiple extension tubes 4 are detachably connected through the connecting sleeve 42; the number of extension tubes 4 is adjusted according to the heating extension length of the automobile cable unit, and the extension tubes 4 have high adaptability and modular design for easy disassembly and assembly.

[0042] In this embodiment, the pressure control flow assembly 3 includes: a sliding tube 31, which is sealingly and slidingly connected in the sealing tube 15, and one end of the sliding tube 31 is connected to the sealing tube 15 through an inner spring 32; an outer ring cavity 33 is provided outside the sealing tube 15, and the outer ring cavity 33 is connected to the sealing tube 15 through a plurality of positioning holes distributed around the circumference, and a connecting hole 35 is opened on the side wall of the sliding tube 31, and the connecting hole 35 can be connected with the positioning hole under the sliding action of the sliding tube 31;

[0043] The outer ring cavity 33 is provided with a side passage 34, one end of which is connected to the gap 22;

[0044] An inner ring 36 is coaxially arranged inside the sliding tube 31 , and a choke shaft 37 is arranged on the inner ring 36 via the center of the connecting spring.

[0045] In this embodiment, when the coolant pressure in the sliding tube 31 is greater than the threshold value, the blocking shaft 37 can form an internal blockage with the end of the sliding tube 31 under the push of the coolant, and the connecting hole 35 is completely connected with the positioning hole, wherein the coolant can enter the heat pipe 21 through the sliding tube 31 during low-pressure delivery, and at this time the connecting hole 35 is staggered with the positioning hole, and as the coolant delivery pressure increases, the inner spring is gradually compressed by the pressure, and the connecting hole 35 is connected with the positioning hole, and at this time both flow branches are delivering coolant; therefore, by controlling the coolant delivery pressure, the flow ratio of the two flow branches can be adaptively adjusted, so as to cool down and conduct heat according to the heating power intensity of the automotive cable unit; by accurately controlling the coolant flow rate, energy waste caused by excessive cooling is avoided, while ensuring that key components are cooled as necessary, thereby improving the overall energy efficiency of the system, and avoiding performance degradation or component damage caused by local overheating, thereby increasing the stability and service life of the entire electrical system.

[0046] In this embodiment, the inner ring 36 can be slidably fine-tuned to different positions along the axis of the sliding tube 31 so as to adjust the distance between the choke shaft 37 and the end of the sliding tube 31 in the initial state, thereby adjusting the intended threshold of the pressure control flow component 3.

[0047] As a preferred embodiment, a connecting rod 51 is provided at one end of the central tube 5, and the central tube 5 is slidably connected in the heat conducting tube 21 through the connecting rod 51. A sealing sleeve 52 is provided on the sliding sleeve of the central tube 5, and the sealing tube 15 is sealed and connected with the central tube 5 through the sealing sleeve 52.

[0048] The central tube 5 has multiple groups of liquid holes distributed thereon; the liquid holes are arranged non-uniformly on the central tube, and the liquid holes near the two ends of the central tube 5 are more densely distributed;

[0049] A water-blocking sleeve 53 is fixed to one end of the heat-conducting pipe 21, and the connecting rod 51 is slidably connected in the water-blocking sleeve 53. A mass block 54 is fixed to the connecting rod 51, and multiple groups of power springs are distributed above and below the mass block 54. Among them, the acceleration and deceleration of the new energy vehicle during driving can cause the mass block to produce inertial sliding. At this time, the central tube can form a turbulent effect on the coolant, thereby improving the uniformity of the coolant flow.

[0050] In this embodiment, an electromagnetic adsorption plate 55 is further provided at the end of the heat pipe 21. The electromagnetic adsorption plate 55 is magnetically attracted to the mass block 54 when powered on. In particular, by pulse power supply to the electromagnetic adsorption plate 55, the electromagnetic adsorption plate 55 can provide instantaneous adsorption and push on the mass block 54, thereby improving the sliding power of the mass block.

[0051] In this embodiment, a plurality of flow rings 56 are coaxially arranged on the central tube 5 to further enhance the turbulence of the coolant.

[0052] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wiring harness device for a new energy vehicle, characterized in that: It includes: A plurality of automotive cable units, a wiring harness mechanism (1), a cooling unit (2), and a wire tube clamping sleeve (12); wherein the plurality of automotive cable units are arranged in parallel in the same direction, the wiring harness mechanism (1) is detachably mounted on a chassis of a new energy vehicle, a cooling unit (2) is fixed on one side of the wiring harness mechanism (1) along the arrangement direction of the automotive cable units, a wire tube clamping sleeve (12) is sleeved on the cooling unit (2), a plurality of positioning grooves are arranged on the side wall of the wire tube clamping sleeve (12), and each of the automotive cable units is circumferentially distributed on the periphery of the wire tube clamping sleeve (12) through the positioning grooves, a cooling liquid channel (11) is arranged in the wiring harness mechanism (1), and the cooling liquid channel (11) is connected to the cooling unit (2); The cooling unit (2) comprises: a heat conducting pipe (21) having a liquid cavity therein; a liquid supply bin (13) and a liquid discharge bin (14) in the wiring harness mechanism (1); the liquid supply bin (13) and the liquid discharge bin (14) are both connected to the heat conducting pipe (21) via a vertically connected sealing pipe (15); a pressure flow control component (3) is provided in the sealing pipe (15) connected to the liquid supply bin (13); two flow branches are provided in the pressure flow control component (3), one of the flow branches being connected to the heat conducting pipe (21); An extension tube (4) is detachably mounted on one end of the heat conducting tube (21); a gap (22) is provided on the inner wall of the heat conducting tube (21); another flow branch is connected to the extension tube (4) through the gap (22); a one-way tube (41) is fixed at the center of the extension tube (4); one end of the one-way tube (41) penetrates and extends into the heat conducting tube (21); A central tube (5) is arranged at the center of the heat conduction tube (21), and a sealing tube (15) connected to the liquid drainage bin (14) is connected to the central tube (5).

2. A new energy vehicle wiring harness device according to claim 1, characterized in that: The wiring harness mechanism (1) comprises: a housing (16), one side of which is fixed with a connecting cavity (17), two inner bins (18) are arranged in the connecting cavity (17), one of the inner bins (18) is connected to the coolant channel (11); through holes (19) are arranged in both of the two inner bins (18), the liquid supply bin (13) and the liquid discharge bin (14) are respectively connected to the inner bins (18) through the through holes (19); a drainage channel (110) is arranged on one side of the inner bin (18) connected to the liquid discharge bin (14); A wire harness steel belt (111) is connected to one side of the housing (16), and a buckle screw (112) is installed on the housing (16), and the tightness of the wire harness steel belt (111) is adjusted by the buckle screw (112).

3. A new energy vehicle wiring harness device according to claim 1, characterized in that: A connecting shaft sleeve (42) is fixed to the end of the extension tube (4), and a plurality of the extension tubes (4) are detachably connected via the connecting shaft sleeve (42); the number of the extension tubes (4) arranged is adjusted according to the heating extension length of the automobile cable unit.

4. A new energy vehicle wiring harness device according to claim 1, characterized in that: The pressure flow control assembly (3) comprises: a sliding tube (31) which is sealingly and slidingly connected in the sealing tube (15), one end of the sliding tube (31) being connected to the sealing tube (15) via an internal spring (32); an outer ring cavity (33) is provided outside the sealing tube (15), the outer ring cavity (33) is connected to the sealing tube (15) via a plurality of positioning holes distributed around the circumference, and a connecting hole (35) is provided on the side wall of the sliding tube (31), the connecting hole (35) being able to butt with the positioning hole under the sliding action of the sliding tube (31); A side passage pipe (34) is provided on the outer annular cavity (33), and one end of the side passage pipe (34) is connected to the gap channel (22); An inner ring (36) is coaxially arranged inside the sliding tube (31), and a flow-blocking shaft (37) is arranged on the inner ring (36) via the center of a connecting spring.

5. A new energy vehicle wiring harness device according to claim 4, characterized in that: When the coolant pressure in the sliding tube (31) is greater than a threshold value, the blocking shaft (37) can form an internal blockage with the end of the sliding tube (31) under the push of the coolant, and the connecting hole (35) is completely connected with the positioning hole.

6. A new energy vehicle wiring harness device according to claim 4, characterized in that: The inner ring (36) can be slidably and finely adjusted to different positions along the axis of the sliding tube (31).

7. A new energy vehicle wiring harness device according to claim 1, characterized in that: A connecting rod (51) is provided at one end of the central tube (5), the central tube (5) is slidably connected in the heat conducting tube (21) via the connecting rod (51), a sealing sleeve (52) is provided on the sliding sleeve of the central tube (5), and the sealing tube (15) is sealed and connected to the central tube (5) via the sealing sleeve (52); The central tube (5) is provided with a plurality of groups of liquid holes; A water-blocking jacket (53) is fixed to one end of the heat-conducting pipe (21), the connecting rod (51) is slidably connected in the water-blocking jacket (53), a mass block (54) is fixed to the connecting rod (51), and a plurality of groups of power springs are distributed above and below the mass block (54).

8. A new energy vehicle wiring harness device according to claim 7, characterized in that: An electromagnetic adsorption disk (55) is also provided at the end of the heat conducting tube (21), and the electromagnetic adsorption disk (55) is magnetically attracted to the mass block (54) when powered on.

9. A new energy vehicle wiring harness device according to claim 7, characterized in that: A plurality of flow rings (56) are coaxially arranged on the central tube (5).

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