Cooling device for vehicle end charging cable

Abstract

The utility model provides a cooling device used for a vehicle end charging cable, comprising a housing, the housing is provided with one or more wire passing channels, the wire passing channels penetrate through the housing, the housing is also provided with liquid cooling channels, the liquid cooling channels are arranged along the circumferential direction of the wire passing channels, and the liquid cooling channels are communicated with the wire passing channels. Therefore, the refrigerant in the liquid cooling channel exchanges heat with the charging cable arranged in the wire passing channel in a penetrating manner. In the embodiment of the invention, when the charging cable is in the charging state, the flowing refrigerant carries out continuous heat exchange on the charging cable, and the situation that the service life of the cable is shortened or a fire accident occurs due to over-temperature charging of the charging cable is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of charging cables, and in particular to a cooling device for a vehicle-end charging cable. Background Art

[0002] With the gradual popularization of new energy vehicles and the development of high-power charging technology, the working current of vehicle-side charging cables is increasing. When charging with high current or in high temperature, poor heat dissipation and other scenarios that are not conducive to heat exchange, the temperature of the vehicle-side high-voltage cable rises sharply and the current carrying capacity decreases, resulting in charging current reduction or over-temperature charging suspension, affecting the user's charging experience. In addition, if the high-voltage cable is in an over-temperature state for a long time, it will also shorten the service life of the cable or cause safety accidents such as fire.

[0003] To address the above-mentioned problems, no effective solution has been proposed yet. Utility Model Content

[0004] The main purpose of the utility model is to provide a cooling device for a charging cable to solve the technical problem of over-temperature charging of the vehicle-end charging cable.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a cooling device for a vehicle-end charging cable is provided, including: a shell, one or more wire-passing channels are opened on the shell, and the wire-passing channels are arranged through the shell, and a liquid cooling channel is also arranged on the shell, and the liquid cooling channel is arranged along the circumference of the wire-passing channel so that the refrigerant located in the liquid cooling channel can perform heat exchange on the charging cable passing through the wire-passing channel.

[0006] Furthermore, the shell includes: a first shell, the first shell has a first through slot with an opening on one side; a second shell, the second shell has a second through slot with an opening on one side, the second shell is detachably connected to the first shell, and the second through slot and the first through slot are surrounded to form a wire passing channel.

[0007] Furthermore, the liquid cooling channel is arranged on the first shell and / or the second shell.

[0008] Furthermore, the first shell and the second shell are positioned and connected via a positioning assembly.

[0009] Furthermore, the positioning assembly includes: positioning holes, at least two positioning holes, at least two positioning holes are arranged on the docking surface of the first shell; at least two positioning pins, at least two positioning pins are arranged on the docking surface of the second shell, and the positioning pins are plugged into and matched with the positioning holes.

[0010] Furthermore, a heat conducting layer is provided in the line passage.

[0011] Furthermore, the heat conducting layer is made of elastic material.

[0012] Furthermore, a cold storage material is provided in the liquid cooling channel.

[0013] Furthermore, the shell is made of metal material.

[0014] Furthermore, a mounting hole is provided in the middle of the shell, and the shell is fixed to the vehicle body through the mounting hole.

[0015] By applying the technical solution of the utility model, a wire-passing channel and a liquid cooling channel are provided on the shell. The wire-passing channel runs through the shell, and the liquid cooling channel is arranged along the circumference of the wire-passing channel. The refrigerant in the liquid cooling channel performs heat exchange with the charging cable in the wire-passing channel. When the charging cable is in the charging state, the flowing refrigerant performs continuous heat exchange with the charging cable, thereby preventing the charging cable from shortening its service life or catching fire due to over-temperature charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic structural diagram of an embodiment of a cooling device for a vehicle-side charging cable according to the utility model is shown;

[0018] Figure 2 An exploded schematic diagram of an embodiment of a cooling device for a vehicle-side charging cable according to the utility model is shown;

[0019] Figure 3 A schematic front view of the first housing is shown;

[0020] Figure 4 A schematic front view of the second housing is shown;

[0021] Figure 5 A schematic top view of the second shell is shown.

[0022] The above drawings include the following reference numerals:

[0023] 1. first housing; 11. first through slot; 12. positioning hole; 13. first ear plate;

[0024] 2. second housing; 21. second through slot; 22. positioning pin; 23. second ear plate;

[0025] 3. Liquid cooling channel; 31. Liquid inlet; 32. Liquid outlet;

[0026] 4. Thermal conductive layer;

[0027] 5. Cold storage materials;

[0028] 6. Mounting holes;

[0029] 7. Charging cable. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0034] Combination Figures 1 to 5 As shown, according to a specific embodiment of the present application, a cooling device for a vehicle-end charging cable is provided.

[0035] Specifically, the cooling device for the vehicle-end charging cable 7 includes a shell, on which one or more wire-passing channels are opened, and the wire-passing channels are arranged through the shell. A liquid cooling channel 3 is also provided on the shell, and the liquid cooling channel 3 is arranged along the circumference of the wire-passing channel so that the refrigerant located in the liquid cooling channel 3 can perform heat exchange with the charging cable 7 passing through the wire-passing channel.

[0036] In the embodiment of the present application, the shell is provided with a wire-passing channel and a liquid cooling channel 3, the wire-passing channel is arranged through the shell, the liquid cooling channel 3 is arranged along the circumference of the wire-passing channel, and the refrigerant in the liquid cooling channel 3 performs heat exchange with the charging cable 7 in the wire-passing channel. When the charging cable 7 is in the charging state, the flowing refrigerant continuously performs heat exchange with the charging cable 7, thereby preventing the charging cable 7 from shortening the cable life or catching fire due to over-temperature charging.

[0037] It should be noted that the number of the cable passages is determined according to the number of the vehicle-end charging cables 7 , and in this embodiment, two charging cables 7 are taken as an example for detailed description.

[0038] Furthermore, the housing is a split structure, which facilitates the installation of the housing and the charging cable 7. The housing includes a first housing 1 and a second housing 2, the first housing 1 having a first through slot 11 with an opening on one side, the second housing 2 having a second through slot 21 with an opening on one side, the second housing 2 being detachably connected to the first housing 1, and the second through slot 21 and the first through slot 11 being arranged to form a wire-passing channel.

[0039] Specifically, first ear plates 13 are respectively provided on the left and right sides of the first housing 1, and second ear plates 23 are respectively provided on the left and right sides of the second housing 2, and the first ear plates 13 and the second ear plates 23 are connected by bolts. The radial dimension of the wire passage is slightly smaller than the radial dimension of the charging cable 7, so that the charging cable 7 and the wire passage have an interference fit to prevent the charging cable 7 from moving relative to the housing.

[0040] Further, the liquid cooling channel 3 is provided on the first shell 1 and / or the second shell 2. It should be noted that the liquid cooling channel 3 can be provided only on the first shell 1 or the second shell 2 to exchange heat with half of the circumference of the charging cable 7. It can also be provided on both the first shell 1 and the second shell 2 to exchange heat with the entire circumference of the charging cable 7.

[0041] In an exemplary embodiment of the present application, a liquid cooling channel 3 is provided on both the first shell 1 and the second shell 2. Specifically, both the first shell 1 and the second shell 2 are hollow structures, and the hollow structures of the first shell 1 and the second shell 2 are completely consistent. The second shell 2 is taken as an example for description. A liquid cooling channel 3 is formed between the outer peripheral surface and the docking surface of the second shell 2, and a liquid inlet 31 and a liquid outlet 32 ​​are provided on the outer peripheral surface of the second shell 2, and the liquid inlet 31 and the liquid outlet 32 ​​are both connected to the liquid cooling channel 3. In order to allow the refrigerant to fill the entire liquid cooling channel 3, the liquid inlet 31 and the liquid outlet 32 ​​are staggered.

[0042] Furthermore, the first housing 1 and the second housing 2 are positioned and connected by a positioning assembly, and the arrangement of the positioning assembly facilitates the docking installation of the first housing 1 and the second housing 2, and speeds up the installation. The structure of the positioning assembly is not limited, as long as it plays a positioning role.

[0043] Specifically, the positioning assembly includes: positioning holes 12 and positioning pins 22, the positioning holes 12 have at least two, at least two positioning holes 12 are arranged on the docking surface of the first shell 1, the positioning pins 22 have at least two, at least two positioning pins 22 are arranged on the docking surface of the second shell 2, and the positioning pins 22 are plugged and matched with the positioning holes 12. There are at least two positioning holes 12 and positioning pins 22 to prevent relative rotation between the first shell 1 and the second shell 2.

[0044] In order to speed up the heat exchange rate between the cooling device and the charging cable 7 , a heat conducting layer 4 is provided in the cable passage. The charging cable 7 is in direct contact with the heat conducting layer 4 and exchanges heat with the refrigerant through the heat conducting layer 4 .

[0045] Furthermore, the heat conducting layer 4 is made of elastic material, specifically, the heat conducting layer 4 can be made of thermal conductive adhesive coating or made of silicone pad. The elastic material is matched with the charging cable 7, and the elastic material has a deformation margin to prevent the charging cable 7 from being deformed due to extrusion.

[0046] Furthermore, a cold storage material 5 is provided in the liquid cooling channel 3. The user can open the liquid cooling channel 3 in advance through the vehicle-side controller to store cold, further slowing down the temperature rise of the charging cable 7 during charging.

[0047] Furthermore, the shell is made of metal material, which has good thermal conductivity and further improves the heat exchange rate.

[0048] Further, a mounting hole 6 is provided in the middle of the housing, and the housing is fixed to the vehicle body through the mounting hole 6. The housing can be connected to the vehicle body as a cable bracket, thereby reducing the number of cable brackets.

[0049] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0050] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.

[0051] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0052] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cooling device for a vehicle-side charging cable, characterized in that: include: A shell, wherein one or more wire-passing channels are provided on the shell, wherein the wire-passing channels are arranged through the shell, and wherein a liquid cooling channel (3) is also provided on the shell, wherein the liquid cooling channel (3) is arranged along the circumference of the wire-passing channel so that a refrigerant in the liquid cooling channel (3) can perform heat exchange with a charging cable (7) passing through the wire-passing channel.

2. The cooling device for the vehicle-side charging cable according to claim 1, characterized in that: The housing comprises: A first shell (1), the first shell (1) having a first through slot (11) with an opening on one side; A second shell (2), wherein the second shell (2) has a second through-groove (21) with an opening on one side, the second shell (2) is detachably connected to the first shell (1), and the second through-groove (21) and the first through-groove (11) are arranged to form the wire-passing channel.

3. The cooling device for the vehicle-side charging cable according to claim 2, characterized in that: The liquid cooling channel (3) is arranged on the first shell (1) and / or the second shell (2).

4. The cooling device for the vehicle-side charging cable according to claim 2, characterized in that: The first shell (1) and the second shell (2) are positioned and connected via a positioning assembly.

5. The cooling device for the vehicle-side charging cable according to claim 4, characterized in that: The positioning component comprises: Positioning holes (12), there are at least two positioning holes (12), and at least two positioning holes (12) are arranged on the docking surface of the first shell (1); There are at least two positioning pins (22), and at least two positioning pins (22) are arranged on the docking surface of the second shell (2). The positioning pins (22) are plug-fitted into the positioning holes (12).

6. The cooling device for the vehicle-side charging cable according to claim 1, characterized in that: A heat conducting layer (4) is provided in the wire passage.

7. The cooling device for the vehicle-side charging cable according to claim 6, characterized in that: The heat conducting layer (4) is made of elastic material.

8. The cooling device for a vehicle-side charging cable according to claim 1, characterized in that: The liquid cooling channel (3) is filled with cold storage material (5).

9. The cooling device for a vehicle-side charging cable according to claim 1, characterized in that: The shell is made of metal material.

10. The cooling device for a vehicle-side charging cable according to claim 1, characterized in that: A mounting hole (6) is provided in the middle of the shell, and the shell is fixed to the vehicle body through the mounting hole (6).

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