Magnetic ring, new energy automobile inverter and new energy automobile
By integrating heat pipes into the magnetic ring of the inverter of the new energy vehicle, the problems of low heat dissipation efficiency and large space are solved, more efficient heat dissipation effect and more stable temperature are achieved, and the reliability and life of the inverter are extended.
Patent Information
- Application Number
- CN202421684097.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-16
AI Technical Summary
In the prior art, the magnetic ring in the inverter of new energy vehicle has low heat dissipation efficiency and takes up a lot of space due to thermal resistance problems, resulting in temperature unstable, affecting the reliability and life of the inverter.
Design a magnetic ring, integrated heat pipe, and the heat pipe is in contact with the magnetic ring body. Through the principle of heat dissipation of heat, the effective transmission and heat dissipation of the magnetic ring is achieved, the heat dissipation effect is improved, and the appropriate temperature and stability are maintained.
Through the design of integrated heat pipes, the heat dissipation efficiency of the magnetic ring is improved, the appropriate temperature and stability is maintained, the reliability and life of the inverter of new energy vehicles is extended, and the space required for additional cooling components is saved.
Smart Images
Figure CN223038706U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat dissipation, and in particular to a magnetic ring, a new energy vehicle inverter and a new energy vehicle. Background Art
[0002] The new energy vehicle inverter is one of the crucial components in electric vehicles and hybrid vehicles. Its main function is to convert the direct current (DC) of the vehicle-mounted battery into alternating current (AC) to drive the motor. This process is crucial for the normal operation of the vehicle because the motor usually requires alternating current to operate. When the new energy vehicle inverter is working, it will generate high-frequency switching noise. As a common mode choke, the magnetic ring attenuates the common mode noise, thereby reducing the electromagnetic interference of the inverter to the outside world. The magnetic ring can also filter out the high-frequency noise on the power line to ensure the stable operation of the inverter. The heat source of the new energy vehicle inverter mainly comes from the copper busbar. When the copper busbar passes through the magnetic ring, a large amount of heat will be generated inside it. If the temperature of the magnetic ring is too high, it will bring instability to the performance of the vehicle inverter and even the whole vehicle. Therefore, it is necessary to keep the magnetic ring at an appropriate temperature under certain conditions.
[0003] In the prior art, a heat dissipation method is to install the magnetic ring on a metal substrate and use the heat conduction property of the metal substrate to transfer the heat to the surrounding environment.
[0004] In the process of implementing the present utility model, the inventor found that there are at least the following problems in the prior art: Although the metal substrate has good heat conduction performance, if the thickness and material selection of the substrate itself are inappropriate, it may form a thermal resistance, reduce the heat dissipation efficiency, and also occupy more space. Summary of the Utility Model
[0005] The present utility model aims to solve at least one of the technical problems in the related art to some extent.
[0006] To this end, the purpose of the present utility model is to provide a magnetic ring, a new energy vehicle inverter and a new energy vehicle.
[0007] To achieve the above object, the first aspect of the present utility model provides a magnetic ring, comprising:
[0008] At least one magnetic ring body, arranged inside the new energy vehicle inverter;
[0009] A heat pipe, at least a part of which is in contact with at least a part of at least one magnetic ring body.
[0010] According to an embodiment of the present utility model, the heat pipe includes an integrally formed evaporation section and a condensation section. The evaporation section is in contact with the magnetic ring body, and the condensation section is used to be in contact with a cooling component.
[0011] According to an embodiment of the present utility model, the magnetic ring body is provided with a through annular groove, the evaporation section is tubular in shape, extends into the annular groove and contacts the annular groove, and the condensation section is located outside the annular groove.
[0012] According to an embodiment of the present utility model, the evaporation section is tubular in shape, and the evaporation section is sleeved on the magnetic ring body and contacts the side wall of the magnetic ring body.
[0013] According to an embodiment of the present utility model, the evaporation section and the condensation section are arranged at an angle.
[0014] According to an embodiment of the present utility model, a plurality of the magnetic ring bodies are arranged side by side, and the whole heat pipe is plate-shaped and contacts the same side of each magnetic ring body.
[0015] According to an embodiment of the present utility model, the magnetic ring body and the heat pipe are connected by means of clamping, welding, bonding or mechanical fixing.
[0016] In a second aspect of the present utility model, a new energy vehicle inverter is proposed, which includes the magnetic ring described in the first aspect and an inverter housing, and the magnetic ring is located inside the inverter housing.
[0017] In a third aspect of the present utility model, a new energy vehicle is proposed, which includes the new energy vehicle inverter described in the second aspect.
[0018] The technical solution provided by the present utility model may include the following beneficial effects:
[0019] By contacting the heat pipe with the magnetic ring body, the magnetic ring of the present utility model is arranged inside the new energy vehicle inverter. Through the heat dissipation principle of the heat pipe, effective heat transfer and dissipation of the magnetic ring are achieved, thereby improving the heat dissipation effect of the magnetic ring, maintaining an appropriate temperature and stability during operation, and improving the reliability and service life of the new energy vehicle inverter. The magnetic ring of the present utility model integrates the heat pipe onto the magnetic ring body, which can save the space required for additional cooling components and is suitable for situations with limited space or compact designs.
[0020] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings
[0021] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. Among them:
[0022] Figure 1 This is a schematic structural diagram of a magnetic ring proposed in an embodiment of the present utility model.
[0023] Figure 2 This is a schematic diagram of the internal structure of the magnetic ring involved in an embodiment of the present utility model.
[0024] Figure 3 This is a schematic structural diagram of a magnetic ring proposed in another embodiment of the present utility model.
[0025] Explanation of reference numerals:
[0026] 1 - Magnetic ring body, 2 - Heat pipe, 21 - Evaporation section, 22 - Condensation section. Detailed implementation manners
[0027] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation of the present utility model. On the contrary, the embodiments of the present utility model include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.
[0028] Next, with reference to Figures 1 to 3 , a magnetic ring, a new energy vehicle inverter and a new energy vehicle according to an embodiment of the present utility model will be described.
[0029] Combined with Figures 1 to 3 shown, the magnetic ring according to an embodiment of the present utility model includes at least one magnetic ring body 1 and a heat pipe 2. The magnetic ring body 1 is arranged inside the new energy vehicle inverter. The heat pipe 2 is also arranged inside the new energy vehicle inverter, and at least a part of the heat pipe 2 is in contact with at least a part of at least one magnetic ring body 1.
[0030] In the new energy vehicle inverter, the main function of the magnetic ring body 1 is to act as an electromagnetic interference (EMI) suppressor to help reduce the high-frequency switching noise generated by the inverter. The heat pipe 2 is a passive heat transfer device that works using the phase change heat transfer technology. The inside of the heat pipe is filled with a porous material wick structure, and the inner cavity of the pipe is evacuated to a negative pressure and then filled with a working liquid and sealed. The shape of the heat pipe 2 is not specifically limited and can be made into various shapes to facilitate integration with the magnetic ring body 1, thereby saving the space required for additional cooling components. The magnetic ring body 1 and the heat pipe 2 can be connected in contact by means such as clamping, welding, bonding or mechanical fixing, and the specific connection method is selected according to actual needs without limitation.
[0031] It should be noted that the number of magnetic ring bodies 1 is set according to actual needs and is not specifically limited. The heat pipe can quickly and effectively transfer heat from the area where the magnetic ring body is located to another area to maintain a stable operating temperature of the magnetic ring. When using it, it is necessary to ensure that the heat pipe is in good contact with the magnetic ring body and can effectively transfer heat to maximize the conduction and dissipation of heat.
[0032] The magnetic ring of the utility model makes the heat pipe contact with the magnetic ring body, and the magnetic ring body is arranged inside the inverter of the new energy vehicle. Through the heat dissipation principle of the heat pipe, the magnetic ring is effectively transmitted and dissipated, thereby improving the heat dissipation effect of the magnetic ring, maintaining a suitable temperature and stability during operation, and improving the reliability and life of the inverter of the new energy vehicle. The magnetic ring of the utility model integrates the heat pipe into the magnetic ring body, which can save the space required for additional cooling components and is suitable for situations with limited space or compact design.
[0033] In some embodiments, the heat pipe 2 includes an integrally formed evaporation section 21 and a condensation section 22, wherein the evaporation section 21 is in contact with the magnetic ring body 1, and the condensation section 22 is used to contact with the cooling component. When the evaporation section 21 is heated, the liquid working medium in the wick in this area quickly vaporizes and absorbs heat, converting into steam. The steam flows to the condensation section 22, releases heat, and recondenses into liquid. The condensed liquid working medium returns to the evaporation section through the wick under the action of capillary force, and the entire heat transfer cycle is completed in this way. The cooling component can dissipate excess heat to other areas. The cooling component can be in the form of a liquid cooling pipe or a heat sink.
[0034] Combination Figure 1 , Figure 2 As shown, in some embodiments, the magnetic ring body 1 is provided with a through annular groove, the evaporation section 21 is tubular in shape, extends into the annular groove, and contacts the annular groove, and the condensation section 22 is located outside the annular groove. In order to maintain the stability of the connection between the annular groove and the evaporation section 21, a thermal conductive adhesive is applied to the evaporation section 21. The annular groove is arranged inside the magnetic ring body 1, which is conducive to taking away the heat generated inside the magnetic ring body 1. The evaporation section 21 is arranged at an angle with the condensation section 22, and the angle is arbitrarily selected according to the available space and the arrangement of the cooling assembly, and there is no specific restriction on this. In one example, the evaporation section 21 is arranged at a 90-degree angle with the condensation section 22, and the condensation section 22 is located below the evaporation section 21 to adapt to the space limitations of the inverter of the new energy vehicle and to facilitate connection with the cooling assembly.
[0035] like Figure 3 As shown, in some embodiments, the evaporation section 21 is tubular in shape, and the evaporation section 21 is sleeved on the magnetic ring body 1 and contacts the side wall of the magnetic ring body 1. The size of the evaporation section 21 is adapted to the size of the magnetic ring body 1. The condensation section 22 is connected to the bottom end of the side wall of the evaporation section 21. This layout can more flexibly adapt to magnetic ring bodies 1 of different sizes and shapes.
[0036] In some embodiments, a plurality of magnetic ring bodies 1 are arranged side by side. The heat pipe 2 is integrally plate-shaped and contacts the same side of each magnetic ring body 1. The heat pipe 2 is used as a temperature equalizing plate. The heat pipe is arranged on the magnetic ring body 1 as a temperature equalizing plate. The principle is to utilize the excellent heat conduction performance of the heat pipe to equalize the temperatures of different parts in the system, thereby improving the stability and performance of the entire system.
[0037] An embodiment of the present utility model also provides a new energy vehicle inverter, which includes the magnetic ring of the above embodiment and an inverter housing, and the magnetic ring is located inside the inverter housing. The new energy vehicle inverter of this embodiment can reduce energy consumption and improve reliability.
[0038] An embodiment of the present utility model also provides a new energy vehicle, which includes the new energy vehicle inverter of the above embodiment. The new energy vehicle of this embodiment can reduce energy consumption and improve reliability.
[0039] The following gives five specific embodiments to further illustrate the above embodiments:
[0040] Embodiment 1
[0041] As shown in combination with Figures 1 to 2 , a through annular groove is provided on the end face of the magnetic ring body 1. The heat pipe 2 has a right-angle bend and is L-shaped. The evaporation section 21 of the heat pipe 2 extends into the annular groove, and the condensation section 22 is connected to the annular groove by thermal conductive adhesive. The condensation section 22 is located outside the annular groove. The condensation section 22 is flat, and its bottom is used to contact the cooling component to achieve heat conduction.
[0042] Placing the heat pipe inside the magnetic ring body in this embodiment can achieve closer thermal contact, thereby improving the heat conduction efficiency. This helps to quickly transfer the heat generated by the magnetic ring body into the heat pipe, prevent overheating and improve the heat dissipation efficiency. Installing the heat pipe inside the magnetic ring body can save space inside the device, especially in applications with limited space. This helps to achieve better thermal management in a compact device design and improve the performance density of the overall system. In addition, by directly connecting the heat pipe to the magnetic ring body, the thermal resistance on the heat conduction path can be reduced, the temperature gradient can be lowered, thereby improving the stability and reliability of the system. This helps to extend the service life of the magnetic ring and reduce performance fluctuations caused by temperature changes.
[0043] Embodiment 2
[0044] As shown in Figure 3 , the evaporation section 21 is tubular, the evaporation section 21 is sleeved on the magnetic ring body 1 and contacts the side wall of the magnetic ring body 1. The condensation section 22 is connected to the bottom end of the side wall of the evaporation section 21.
[0045] In this embodiment, the heat pipe is placed outside the magnetic ring body without modifying the internal structure of the magnetic ring body. This layout can more flexibly adapt to magnetic ring bodies of different sizes and shapes. The manufactured heat pipe can be installed on the surface of the magnetic ring body by means such as clamping, welding, bonding, or mechanical fixing, ensuring good contact between the heat pipe and the magnetic ring body and enabling effective heat transfer to maximize heat conduction and dissipation. This ensures that the magnetic ring maintains an appropriate temperature and stability during operation.
[0046] Embodiment Three
[0047] The magnetic ring in this embodiment has multiple magnetic ring bodies arranged side by side. The heat pipe is in a flat plate shape as a whole and contacts the same side of each magnetic ring body. The heat pipe is used as a temperature equalizing plate to keep the temperature of each magnetic ring body consistent.
[0048] In this embodiment, the heat pipe is used as a temperature equalizing plate and arranged on the magnetic ring body. The principle is to utilize the excellent heat conduction performance of the heat pipe to equalize the temperature of different parts in the system, thereby improving the stability and performance of the entire system. The heat pipe is arranged inside the system along the key parts that need temperature equalization in the system, such as the magnetic ring body. Ensure that the heat pipe can cover the entire system and maintain good thermal contact with each magnetic ring body. At the same time, the heat pipe is connected to the inverter housing through a heat conducting pad or heat conducting glue to ensure that heat can be effectively conducted into the heat pipe. This helps to equalize the temperature of each part inside the system and reduce the temperature gradient.
[0049] Embodiment Four
[0050] This embodiment provides a new energy vehicle inverter, including any one of the magnetic rings and the inverter housing in Embodiment One, Embodiment Two, and Embodiment Three, with the magnetic ring located inside the inverter housing.
[0051] Embodiment Five
[0052] This embodiment provides a new energy vehicle, including the new energy vehicle inverter in Embodiment Four.
[0053] It should be noted that in the description of the present utility model, terms such as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In addition, in the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0054] In the present utility model, unless otherwise clearly defined or limited, terms such as "installation", "connection", "attachment", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection or communication with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0055] In the present utility model, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0056] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "left", "right", "front" and "rear" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present utility model.
[0057] Any process or method description shown in a flowchart or described in other ways herein may be understood to represent a module, segment or portion of code including one or more executable instructions for implementing a specific logical function or process. The scope of the preferred embodiments of the present utility model includes additional implementations, where the functions may be executed in a manner not shown or discussed, including in a substantially simultaneous manner or in a reverse order according to the functions involved, which should be understood by those skilled in the technical field to which the embodiments of the present utility model belong.
[0058] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.
[0059] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.
Claims
1. A magnetic ring, characterized in that: include: At least one magnetic ring body (1) is arranged inside the inverter of the new energy vehicle; A heat pipe (2), wherein at least a portion of the heat pipe (2) is in contact with at least a portion of at least one of the magnetic ring bodies (1).
2. The magnetic ring according to claim 1, characterized in that: The heat pipe (2) comprises an evaporation section (21) and a condensation section (22) which are integrally formed; the evaporation section (21) is in contact with the magnetic ring body (1); and the condensation section (22) is used to contact with a cooling component.
3. The magnetic ring according to claim 2, characterized in that: The magnetic ring body (1) is provided with a penetrating annular groove, the evaporation section (21) is in a tubular shape, extends into the annular groove and contacts the annular groove, and the condensation section (22) is located outside the annular groove.
4. The magnetic ring according to claim 2, characterized in that: The evaporation section (21) is in a tubular shape and is sleeved on the magnetic ring body (1) and in contact with the side wall of the magnetic ring body (1).
5. The magnetic ring according to claim 3, characterized in that: The evaporation section (21) and the condensation section (22) are arranged at an angle.
6. The magnetic ring according to claim 2, characterized in that: A plurality of the magnetic ring bodies (1) are arranged side by side, and the heat pipe (2) is in the shape of a plate as a whole and is in contact with the same side of each of the magnetic ring bodies (1).
7. The magnetic ring according to any one of claims 1 to 6, characterized in that: The magnetic ring body (1) and the heat pipe (2) are connected by clamping, welding, bonding or mechanical fixing.
8. A new energy vehicle inverter, characterized in that: It comprises the magnetic ring and an inverter housing as claimed in any one of claims 1 to 7, wherein the magnetic ring is located inside the inverter housing.
9. A new energy vehicle, characterized in that: Including the new energy vehicle inverter as described in claim 8.