Charging wire harness and charging pile

Abstract

The utility model discloses a charging wire harness, which comprises a cable body, a plurality of magnetic ring groups and a protective sleeve, the magnetic ring groups are sleeved on the outer wall of the cable body, the plurality of magnetic ring groups are arranged at intervals along the length direction of the cable body, the protective sleeve is sleeved on the periphery of the cable body, and the protective sleeve is sleeved on the outer wall of the cable body. The magnetic ring group is arranged between the protective sleeve and the cable body, and the magnetic ring group is connected with the protective sleeve. The utility model further discloses a charging pile. According to the cable, electromagnetic interference can be eliminated through the magnetic ring arranged on the outer wall of the cable body in a sleeving mode.

Description

Technical Field

[0001] This application relates to the technical field of charging devices, and particularly to a charging harness and a charging pile. Background Art

[0002] The vehicle fast charging harness includes two sections, from the vehicle charging port to the battery pack and from the charging pile to the charging port. Currently, no effective electromagnetic interference filtering design is adopted. During fast charging or high-power charging, the current and voltage will be relatively large, resulting in an increase in the electromagnetic field strength and generating more electromagnetic interference. The electromagnetic interference will cause a decrease in the charging efficiency, affect the stability and efficiency of power transmission, and may also cause communication problems between the charger and the electric vehicle, resulting in a slower charging speed or interruption. Moreover, frequent electromagnetic interference may have a negative impact on the lifespan of the electric vehicle battery, leading to a reduction in battery capacity and a shortening of the lifespan. At the same time, it may also interfere with in-vehicle electronic devices (such as navigation systems, audio systems, etc.), causing device failures or abnormal operations, as well as causing failures or abnormalities in the electrical system, increasing the risk of fires or other safety accidents. Utility Model Content

[0003] The purpose of this application is to overcome the deficiencies of the prior art and provide a charging harness and a charging pile that can eliminate electromagnetic interference through magnetic rings sleeved on the outer wall of the cable body.

[0004] The technical solution of this application provides a charging harness, including a cable body, a magnetic ring group, and a protective sleeve. There are multiple groups of the magnetic ring group, and the magnetic rings are sleeved on the outer wall of the cable body. The multiple groups of magnetic ring groups are arranged at intervals along the length direction of the cable body. The protective sleeve is sleeved on the outer periphery of the cable body, and the magnetic ring group is arranged between the protective sleeve and the cable body, and the magnetic ring group is connected to the protective sleeve.

[0005] Optionally, each group of the magnetic ring group includes multiple magnetic rings, and the multiple magnetic rings are arranged at intervals along the length direction of the cable body.

[0006] Optionally, the magnetic ring includes a differential-mode magnetic ring and a common-mode magnetic ring. The differential-mode magnetic ring is sleeved on a single cable body, and the common-mode magnetic ring is sleeved on multiple cable bodies at the same time.

[0007] Optionally, the differential-mode magnetic ring and the common-mode magnetic ring are made of materials with different filtering characteristics.

[0008] Optionally, the distance between adjacent magnetic rings in each group of the magnetic ring group is less than the distance between adjacent two groups of the magnetic ring group.

[0009] Optionally, the protective sleeve includes a heat-shrinkable tube and a corrugated tube. The heat-shrinkable tube covers the cable body and the magnetic ring group and connects the cable body and the magnetic ring group. The corrugated tube is sleeved on the outer periphery of the cable body, the magnetic ring group and the heat-shrinkable tube. Optionally, the magnetic ring group is fixed at the trough of the corrugated tube.

[0010] Optionally, the inner diameter of the magnetic ring is 2-2.5 times larger than the outer diameter of the cable body. Optionally, the differential-mode magnetic ring and the common-mode magnetic ring are one of manganese-zinc ferrite magnetic rings, nickel-zinc ferrite magnetic rings or nanocrystalline magnetic rings.

[0011] The present utility model also discloses a charging pile, including the above-mentioned charging harness.

[0012] After adopting the above technical solution, the following beneficial effects are obtained:

[0013] In the charging harness of the present application, by arranging multiple groups of magnetic ring groups on the harness body, the multiple groups of magnetic ring groups are arranged at intervals along the length direction of the cable body, and the magnetic ring groups can be fixed by the protective sleeve, so that the filtering range of the magnetic rings can cover the length direction of the cable body. The magnetic rings in the magnetic ring groups can play a filtering effect to achieve the effect of eliminating electromagnetic interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Referring to the drawings, the disclosure of the present application will become more understandable. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the protection scope of the present application. In the drawings:

[0015] Figure 1 is a schematic structural diagram of a charging pile harness in one embodiment of the present utility model;

[0016] Figure 2 is a schematic structural diagram of a charging pile harness in one optional embodiment of the present utility model;

[0017] Figure 3 is a schematic structural diagram of a cable body in one embodiment of the present utility model;

[0018] Figure 4 is a schematic diagram of a charging pile in one embodiment of the present utility model;

[0019] Figure 5 is a schematic diagram of the arrangement of magnetic rings in one embodiment of the present utility model.

[0020] Correspondence table of reference numerals:

[0021] Cable body 10: Core 101, protective layer 102, insulating layer 103, connector 104;

[0022] Magnetic ring group 20: magnetic ring 201, differential-mode magnetic ring 2011, common-mode magnetic ring 2012;

[0023] Protective sleeve 30: corrugated pipe 301;

[0024] Charging pile body 40. Specific embodiments

[0025] The specific embodiments of the present application will be further described below with reference to the accompanying drawings.

[0026] It is easy to understand that according to the technical solution of the present application, under the premise of not changing the essence of the present application, those of ordinary skill in the art can use various structural forms and implementation methods that can be mutually replaced. Therefore, the following specific embodiments and the accompanying drawings are only exemplary descriptions of the technical solution of the present application, and should not be regarded as the whole of the present application or as a limitation or restriction on the technical solution of the application.

[0027] The orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc. mentioned or possibly mentioned in this specification are defined relative to the structures shown in the respective drawings. They are relative concepts, and therefore may change accordingly depending on their different positions and different usage states. Therefore, these or other orientation terms should not be construed as restrictive terms. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0029] In one of the embodiments of the present utility model, a charging harness is disclosed. As Figure 1 shown, it includes a cable body 10, a magnetic ring group 20, and a protective sleeve 30. There are multiple groups of magnetic ring groups 20. The magnetic ring group 20 is sleeved on the outer wall of the cable body 10. The multiple groups of magnetic ring groups 20 are arranged at intervals along the length direction of the cable body 10. The protective sleeve 30 is sleeved on the outer periphery of the cable body 10. The magnetic ring group 20 is arranged between the protective sleeve 30 and the cable body 10, and the magnetic ring group 20 is connected to the protective sleeve 30.

[0030] Furthermore, connectors 104 are connected to both ends of the cable body 10, and through the connectors 104, it can be used to connect a charging gun or a charging pile body 40.

[0031] Among them, in the present application, as Figure 1 shown, by arranging multiple sets of magnetic ring groups 20, and the multiple sets of magnetic ring groups 20 are arranged at intervals along the length direction of the cable body 10, so that the filtering range of the magnetic ring group 20 can cover the length direction of the cable body 10, so as to ensure the filtering effect. By arranging multiple sets of magnetic ring groups 20, a filtering effect can be achieved, so as to achieve the effect of eliminating electromagnetic interference. In addition, the magnetic ring group 20 can be fixed by the protective sleeve 30, so that the multiple sets of magnetic ring groups 20 are arranged at intervals, so the arrangement of the magnetic ring group 20 will not affect the bending of the cable body 10. And in the present application, by arranging the magnetic ring group 20 on the cable body 10, there is no need to transform the cable body 10, thus reducing the transformation cost.

[0032] In some embodiments of the present utility model, as Figure 1 shown, each set of magnetic ring groups 20 includes a plurality of magnetic rings 201, and the plurality of magnetic rings 201 are arranged at intervals along the length direction of the cable body 10.

[0033] Among them, each set of magnetic ring groups 20 is provided with two magnetic rings 201, and the distance between the two magnetic rings 201 is set to be 40 mm - 60 mm. Generally, the distance between adjacent magnetic rings 201 is set to be 50 mm, so as to ensure the filtering effect and at the same time reduce the influence of the magnetic rings 201 on the bending of the cable body 10.

[0034] Optionally, each set of magnetic ring groups 20 is provided with more than two magnetic rings 201.

[0035] Furthermore, the distance between adjacent magnetic ring groups 20 is more than 200 mm, so as to avoid the influence of the magnetic ring groups 20 on the bending of the cable body 10.

[0036] In some embodiments of the present utility model, as Figure 5 shown, the magnetic ring 201 includes a differential-mode magnetic ring 2011 and a common-mode magnetic ring 2012. The differential-mode magnetic ring 2011 is sleeved on a single cable body 10, and the common-mode magnetic ring 2012 is sleeved on multiple cable bodies 10 at the same time.

[0037] Furthermore, by arranging the differential-mode magnetic ring 2011 and the common-mode magnetic ring 2012, two-stage filtering can be realized, so as to achieve a better filtering effect and reduce electromagnetic interference.

[0038] Among them, the differential-mode magnetic ring 2011 is sleeved on the single cable body 10. The differential-mode magnetic ring 2011 is circular, and the inner diameter of the differential-mode magnetic ring 2011 is slightly larger than the outer diameter of the cable body 10 by 1-3 mm, so as to reduce the moving space between the differential-mode magnetic ring 2011 and the cable body 10 and reduce the displacement of the differential-mode magnetic ring 2011 during use. The common-mode magnetic ring 2012 is. Circular, and its inner hole is also oval. The length of the major axis of the inner diameter of the common-mode magnetic ring 2012 is 3-3.5 times that of the cable body 10, so as to ensure that multiple cable bodies 10 can pass through at the same time and reduce the moving gap of the cable body 10 relative to the common-mode magnetic ring 2012.

[0039] In some embodiments of the present invention, the differential-mode magnetic ring 2011 and the common-mode magnetic ring 2012 are made of materials with different filtering characteristics respectively, so as to achieve different filtering effects.

[0040] In some embodiments of the present invention, the magnetic ring 201 is one of manganese-zinc ferrite magnetic rings, nickel-zinc ferrite magnetic rings or nanocrystalline magnetic rings.

[0041] Among them, the differential-mode magnetic ring 2011 uses an amorphous magnetic ring, and the common-mode magnetic ring 2012 uses a nanocrystalline magnetic ring, so as to achieve filtering in different frequency bands.

[0042] Furthermore, the magnetic rings 201 made of a variety of different materials can achieve good filtering effects in multiple frequency bands.

[0043] Furthermore, the magnetic rings 201 made of different materials are selected according to the electromagnetic wave frequency bands that need to be concerned, so as to achieve good filtering effects in multiple different frequency bands.

[0044] Among them, for low-frequency interference, such as below 10 MHz, a manganese-zinc ferrite magnetic ring is used. For high-frequency interference, such as 10-30 MHz, a nickel-zinc ferrite magnetic ring is used. For the coexistence of high-frequency interference and low-frequency interference, that is, for the frequency band below 30 MHz that needs to be covered, a nanocrystalline magnetic ring is used. Through the combination of magnetic rings 20 made of a variety of different materials, full-band filtering can be achieved, and thus the effect of eliminating electromagnetic interference can be achieved.

[0045] In some embodiments of the present invention, such as Figure 1 and Figure 2 shown, the protective sleeve 30 includes a heat-shrinkable tube and a corrugated tube 301. The heat-shrinkable tube is coated on the cable body 10 and the magnetic ring group 20 and connects the cable body 10 and the magnetic ring group 20. The corrugated tube 301 is sleeved on the outer periphery of the cable body 10, the magnetic ring group 20 and the heat-shrinkable tube. Among them, by using heat shrinkage of the heat-shrinkable tube, the magnetic ring group 20 can be relatively fixed to the cable body 10, so as to avoid the movement of the magnetic ring group 20 relative to the cable body, and ensure that the magnetic ring group 20 can filter each position in the length direction of the cable body 10.

[0046] Optionally, the protective sleeve 30 is a bendable flexible pipe, and the cable body 10 can be protected through the protective pipe.

[0047] Furthermore, the outer wall of the magnetic ring group 20 is fixedly connected to the inner wall of the protective sleeve 30, so that the magnetic ring group 20 can be fixed.

[0048] In some embodiments of the present invention, as Figure 2 shown, the magnetic ring group 20 is fixed at the trough of the corrugated pipe 301, so as to further limit the movement of the magnetic ring group 20 relative to the cable body 10, and the magnetic ring group 20 will not affect the bending of the corrugated pipe 301.

[0049] Among them, by adopting the corrugated pipe 301, it can be bent. At the same time, a skeleton is provided inside the corrugated pipe 301, and the skeleton can play a role in supporting the magnetic ring 201 and protecting the internal cable body 10.

[0050] Further, the skeleton is composed of a plurality of circular ring structures, and the plurality of circular ring structures are arranged along the length direction of the corrugated pipe 301, so as to play a supporting role and not affect the bending of the corrugated pipe 301.

[0051] In some embodiments of the present invention, the inner diameter of the magnetic ring 201 is 2-2.5 times larger than the outer diameter of the cable body 10.

[0052] Among them, the inner diameter of the magnetic ring 201 is slightly larger than 2 times the outer diameter of the cable body 10. Generally, for a cable body 10 with an outer diameter of 20 mm, a magnetic ring 201 with an inner diameter of 40 mm - 50 mm is generally selected, so as to avoid the magnetic ring 201 being too large in volume resulting in too large a weight and insecure fixation, and at the same time avoid too large a gap between the magnetic ring 201 and the cable body 10 resulting in a poor filtering effect.

[0053] In some embodiments of the present invention, as Figure 3 shown, the cable body 10 includes a wire core 101, a protective layer 102 and an insulating layer 103. The protective layer 102 is coated on the outer periphery of the wire core 101, and the insulating layer 103 is coated on the outer periphery of the protective layer 102.

[0054] The present invention also discloses a charging pile, including the above charging harness.

[0055] Further, as Figure 4As shown, the charging pile includes a charging pile body 40, a first wire harness, and a second wire harness. Among them, the first wire harness is used to connect the charging pile body 40 to the battery pack, and the second wire harness is used to connect the charging pile to the charging port. Among them, both the first wire harness and the second wire harness are the above-mentioned charging wire harnesses, so as to ensure that both the first wire harness and the second wire harness can achieve better electromagnetic interference elimination problems.

[0056] Among them, the charging wire harness is used to connect the connector 104. The connector 104 can be one of a male head or a female head, and can also be connected to a copper busbar to connect the high-voltage subsystem through hard connection methods such as crimping.

[0057] The above are only the principles and preferred embodiments of this application. It should be noted that for those of ordinary skill in the art, based on the principles of this application, several other variations can also be made, which should also be regarded as the protection scope of this application.

Claims

1. A charging wire harness, characterized in that, It includes a cable body, a magnetic ring group and a protective sleeve. There are multiple groups of the magnetic ring group. The magnetic ring group is sleeved on the outer wall of the cable body. The multiple groups of the magnetic ring group are arranged at intervals along the length direction of the cable body. The protective sleeve is sleeved on the outer periphery of the cable body. The magnetic ring group is arranged between the protective sleeve and the cable body. The magnetic ring group is connected to the protective sleeve. Each group of the magnetic ring group includes multiple magnetic rings. The multiple magnetic rings are arranged at intervals along the length direction of the cable body. The magnetic ring includes a differential-mode magnetic ring and a common-mode magnetic ring. The differential-mode magnetic ring is sleeved on a single cable body. The common-mode magnetic ring is sleeved on multiple cable bodies at the same time.

2. The charging harness according to claim 1, wherein The differential-mode magnetic ring and the common-mode magnetic ring are made of materials with different filtering characteristics respectively.

3. The charging harness according to claim 1, characterized in that, The distance between adjacent magnetic rings in each group of the magnetic ring group is smaller than the distance between adjacent two groups of the magnetic ring group.

4. The charging harness according to claim 1, wherein The protective sleeve includes a heat-shrinkable tube and a corrugated tube. The heat-shrinkable tube covers the cable body and the magnetic ring group and connects the cable body and the magnetic ring group. The corrugated tube is sleeved on the outer periphery of the cable body, the magnetic ring group and the heat-shrinkable tube.

5. The charging harness according to claim 4, wherein The magnetic ring group is fixed at the trough of the corrugated tube.

6. The charging harness according to claim 1, wherein The inner diameter of the magnetic ring is 2-2.5 times the outer diameter of the cable body.

7. The charging wire harness according to claim 1 or 2, characterized in that The differential-mode magnetic ring and the common-mode magnetic ring are one of manganese-zinc ferrite magnetic rings, nickel-zinc ferrite magnetic rings or nanocrystalline magnetic rings.

8. A charging pile, characterized in that, It includes the charging harness according to any one of claims 1-7.

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