TBOX box body, vehicle-mounted TBOX and vehicle

By combining a metal and non-metal casing design with insert injection molding and finned structure, the high cost and weight of TBOX casings are solved, achieving low cost, high-efficiency heat dissipation and electromagnetic compatibility.

CN224205344UActive Publication Date: 2026-05-05GUANGZHOU XIAOPENG NEW ENERGY MOTORS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU XIAOPENG NEW ENERGY MOTORS CO LTD
Filing Date
2025-04-23
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

The high cost and weight of existing TBOX boxes have become a bottleneck for the widespread adoption of smart cars.

Method used

The shell is made of a combination of metal and non-metal materials, connected by insert injection molding process, and combined with heat sink and fin structure to form a high-efficiency heat dissipation system, and electromagnetic shielding ensures stable communication signal.

Benefits of technology

This resulted in a low-cost, lightweight TBOX enclosure while ensuring good heat dissipation and electromagnetic compatibility, thus reducing overall weight and material costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a TBOX box body, a vehicle-mounted TBOX and a vehicle, and the TBOX box body comprises a first housing which is made of a metal material; the second shell is made of a non-metal material, the second shell is connected with the first shell, a containing cavity is formed between the second shell and the first shell, and the second shell is provided with a mounting opening communicated with the containing cavity; and the heat dissipation piece is made of a metal material, and the heat dissipation piece is arranged at the mounting opening. According to the scheme, the second shell is made of the non-metal material, the heat dissipation piece is embedded in the installation opening of the second shell, effective conduction of heat energy can be achieved, the box body has the cost and weight advantages brought by the non-metal material, and compared with a pure metal box body, the box body in the scheme is low in cost and light in weight.
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Description

Technical Field

[0001] This utility model relates to the field of TBOX technology, specifically to a TBOX housing, a vehicle-mounted TBOX, and a vehicle. Background Technology

[0002] Currently, most mainstream 5G-TBOX enclosures on the market are manufactured using die-cast aluminum technology to address the heat dissipation and electromagnetic compatibility (EMC) challenges posed by high-power 5G chips. While die-cast aluminum alloy enclosures perform well in terms of heat dissipation and electromagnetic protection, their high cost and weight have become a major bottleneck restricting the widespread adoption of smart cars.

[0003] There is currently no effective solution to the technical problems of high cost and heavy weight of TBOX boxes in existing technologies. Utility Model Content

[0004] The main objective of this invention is to provide a TBOX housing, a vehicle-mounted TBOX, and a vehicle, in order to solve the technical problems of high cost and heavy weight of TBOX housings in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a TBOX housing is provided, comprising: a first housing made of metal; a second housing made of non-metallic material, the second housing being connected to the first housing, forming a receiving cavity between the second housing and the first housing, the second housing having an installation port communicating with the receiving cavity; and a heat sink made of metal, the heat sink being disposed at the installation port.

[0006] Furthermore, the first housing and the heat sink are connected using an insert injection molding process.

[0007] Furthermore, fins are provided on the side of the heat sink away from the receiving cavity, and the heat sink is formed by extrusion.

[0008] Furthermore, a first receiving groove is provided on the side of the first housing near the second housing, and a first mounting structure for mounting a circuit board is provided circumferentially on the first housing, the first mounting structure being arranged around the first receiving groove.

[0009] Furthermore, the first receiving groove of the first housing is provided with a heat dissipation protrusion, and the heat dissipation protrusion is coated with thermal grease.

[0010] Furthermore, a second receiving groove is provided on the side of the second housing near the first housing, and the second receiving groove and the first receiving groove surround each other to form a receiving cavity.

[0011] Furthermore, the edge of the second housing is provided with a notch, which, together with the first housing, forms an interface for accommodating the connector.

[0012] According to another aspect of the present invention, a vehicle-mounted TBOX is provided, the vehicle-mounted TBOX including a TBOX housing, the TBOX housing being the TBOX housing described above.

[0013] Furthermore, the vehicle-mounted TBOX includes: a circuit board, which is disposed in the receiving cavity of the TBOX housing, a first electrical component is disposed on one side of the circuit board, and a second electrical component is disposed on the other side of the circuit board, the power of the second electrical component is less than the power of the first electrical component, the second electrical component is disposed close to the second housing, and the first electrical component is disposed close to the first housing.

[0014] According to another aspect of the present invention, a vehicle is provided, the vehicle including an in-vehicle TBOX, wherein the TBOX housing of the in-vehicle TBOX is the TBOX housing described above.

[0015] By applying the technical solution of this utility model, a first shell made of metal and a second shell made of non-metal are connected to form a box structure. A heat dissipation component is provided at the mounting port of the second shell. This heat dissipation component, together with the first shell, forms a heat dissipation system to dissipate heat from the electrical components inside the box. At the same time, the first shell made of metal can also act as electromagnetic shielding to ensure stable transmission of communication signals inside the box. In the above solution, the second shell is made of non-metallic material, and the heat dissipation component is embedded at the mounting port of the second shell. This not only enables effective heat conduction but also has the cost and weight advantages of non-metallic materials. Compared with a pure metal box, the box structure in the above solution is lower in cost and lighter in weight. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of a first embodiment of the TBOX housing according to the present invention is shown;

[0018] Figure 2 A schematic diagram of the structure of a second embodiment of the TBOX housing according to the present invention is shown;

[0019] Figure 3 A structural schematic diagram of a third embodiment of the TBOX housing according to the present invention is shown;

[0020] Figure 4 A schematic diagram of an embodiment of the vehicle-mounted TBO according to the present invention is shown.

[0021] The above figures include the following reference numerals:

[0022] 10. First shell;

[0023] 11. First receiving groove; 12. First mounting structure; 13. Fixed support foot; 14. Heat dissipation protrusion;

[0024] 20. Second shell;

[0025] 21. Mounting port; 22. Second receiving slot; 23. Notch; 24. Battery slot; 25. Battery cover; 26. Connecting post;

[0026] 30. Heat sink components;

[0027] 40. Circuit board; 41. Connector;

[0028] 50. Power supply battery. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0033] Combination Figures 1 to 4 As shown, according to a specific embodiment of this application, a TBOX housing is provided.

[0034] Specifically, the TBOX housing includes: a first housing 10, a second housing 20, and a heat sink 30. The first housing 10 is made of metal, the second housing 20 is made of non-metallic material, the second housing 20 is connected to the first housing 10, and a receiving cavity is formed between the second housing 20 and the first housing 10. The second housing 20 is provided with a mounting port 21 that communicates with the receiving cavity. The heat sink 30 is made of metal and is located at the mounting port 21.

[0035] In the embodiments of this application, a first housing 10 made of metal and a second housing 20 made of non-metallic material are connected to form a box structure. A heat sink 30 is provided at the mounting port 21 of the second housing 20. The heat sink 30 and the first housing 10 together form a heat dissipation system to dissipate heat from the electrical components inside the box. At the same time, the first housing 10 made of metal can also serve as electromagnetic shielding to ensure stable transmission of communication signals inside the box. In the above solution, the second housing 20 is made of non-metallic material, and the heat sink 30 is embedded at the mounting port 21 of the second housing 20. This not only enables effective heat conduction but also has the cost and weight advantages of non-metallic materials. Compared with a pure metal box, the box in the above solution is lower in cost and lighter in weight.

[0036] In one exemplary embodiment of this application, the first housing 10 and the heat sink 30 are connected using an insert injection molding process.

[0037] In the embodiments of this application, the insert injection molding process completes the embedding of metal parts and the molding of plastic shells in a one-time molding process. Compared with traditional screw fixing or bonding methods, the insert injection molding process simplifies the assembly process, reduces the use of additional connectors, and thus reduces material and assembly costs. The metal heat sink 30 is embedded in the injection molding material, so that a firm mechanical connection is formed between the first shell 10 and the heat sink 30, improving the stability of the overall structure. In addition, the injection molding material can fill the gaps between the metal parts, forming a good sealing effect, effectively preventing the influence of external environmental factors such as dust and moisture on the electrical components inside the box, and improving the protection level of the box.

[0038] Preferably, the heat sink 30 has fins on the side away from the receiving cavity, and the heat sink 30 is formed by extrusion. The fin structure increases the surface area of ​​the heat sink 30 in contact with air, accelerating the radiation and convection of heat energy to the environment, thereby improving heat dissipation efficiency. Extrusion is an economical and efficient metal forming method that can manufacture heat sinks 30 with complex shapes and good dimensional accuracy at a lower cost. Compared with processes such as die casting or machining, extrusion reduces material waste and lowers manufacturing costs.

[0039] In one exemplary embodiment of this application, a first receiving groove 11 is provided on the side of the first housing 10 near the second housing 20, and a first mounting structure 12 for mounting a circuit board 40 is provided circumferentially on the first housing 10, the first mounting structure 12 being arranged around the first receiving groove 11.

[0040] In the embodiments of this application, the first housing 10 is made of metal, and the first receiving groove 11 is adapted to accommodate high-power electrical components on the circuit board 40 so that the electrical components can dissipate heat through the first housing 10.

[0041] like Figure 1 , Figure 3 As shown, the first housing 10 has a first receiving groove 11 and a flange arranged circumferentially along the first receiving groove 11. The flange has mounting holes and serves as a first mounting structure 12 for connection with the circuit board 40. After the first housing 10 is installed with the circuit board 40, the electrical components on the circuit board 40 can extend into the first receiving groove 11 and transfer heat to the first housing 10 through thermal conduction, and then the first housing 10 dissipates the heat.

[0042] Preferably, the first receiving groove 11 of the first housing 10 is provided with a heat dissipation protrusion 14, and the heat dissipation protrusion 14 is coated with thermal paste. The heat dissipation protrusion 14 is provided to fit against the electrical components on the circuit board 40, so that the heat on the electrical components can be quickly transferred to the first housing 10; the use of thermal paste ensures that the heat of the electrical components can be evenly distributed on the heat dissipation protrusion 14, avoiding local overheating and improving the overall thermal management efficiency.

[0043] like Figure 3 As shown, the first receiving groove 11 of the first housing 10 is provided with a plurality of heat dissipation protrusions 14. The number and layout of the heat dissipation protrusions 14 are designed according to the power consumption and number of electrical components on the circuit board 40 in order to effectively dissipate the heat generated by the electrical components.

[0044] Furthermore, a fixed support leg 13 is provided on the side of the first housing 10 away from the second housing 20, and the first housing 10 is connected to the vehicle through the fixed support leg 13.

[0045] In one exemplary embodiment of this application, a second receiving groove 22 is provided on the side of the second housing 20 near the first housing 10, and the second receiving groove 22 and the first receiving groove 11 surround to form a receiving cavity.

[0046] In the embodiments of this application, the second receiving groove 22 is provided to accommodate electrical components on the circuit board 40, so that electrical components can be placed on both sides of the circuit board 40, which is conducive to the rapid dissipation of heat. The electrical components located in the second receiving groove 22 can be cooled by the heat sink 30.

[0047] Furthermore, the edge of the second housing 20 is provided with a notch 23, which, together with the first housing 10, forms an interface for accommodating the connector 41. This interface provides installation space for the connector 41, preventing the connector 41 from being located outside the housing, reducing installation difficulty in confined vehicle environments, and enhancing the compatibility and flexibility of the equipment.

[0048] Furthermore, the top of the second housing 20 is provided with a battery slot 24, which is used to hold the power supply battery 50. The battery slot 24 is provided with a connecting post 26 in the circumference, and the connecting post 26 is provided with a threaded hole. The battery cover 25 is connected to the second housing 20 through the connecting post 26 to cover the battery slot 24.

[0049] According to another specific embodiment of this application, a vehicle-mounted TBOX is provided, which includes a TBOX housing, and the TBOX housing is the TBOX housing in the above embodiment.

[0050] Specifically, the TBOX housing includes: a first housing 10, a second housing 20, and a heat sink 30. The first housing 10 is made of metal, the second housing 20 is made of non-metallic material, the second housing 20 is connected to the first housing 10, and a receiving cavity is formed between the second housing 20 and the first housing 10. The second housing 20 is provided with a mounting port 21 that communicates with the receiving cavity. The heat sink 30 is made of metal and is located at the mounting port 21.

[0051] Furthermore, the vehicle-mounted TBOX includes a circuit board 40, which is disposed in the receiving cavity of the TBOX housing. A first electrical component is provided on one side of the circuit board 40, and a second electrical component is provided on the other side of the circuit board 40. The power of the second electrical component is less than that of the first electrical component. The second electrical component is disposed close to the second housing 20, and the first electrical component is disposed close to the first housing 10.

[0052] In the embodiments of this application, a first electrical component with higher power consumption is placed close to the first housing 10, and heat is dissipated through heat conduction by the metal first housing 10. A second electrical component with lower power consumption is placed close to the second housing 20, and heat is dissipated through heat sink 30. The heat dissipation area of ​​the first housing 10 is larger than that of the heat sink 30, thereby improving the overall heat dissipation performance of the structure.

[0053] Furthermore, a connector 41 is provided on the side of the circuit board 40 near the second housing 20, and the connector 41 is accommodated in the mounting opening 21 formed by the first housing 10 and the second housing 20.

[0054] According to another specific embodiment of this application, a vehicle is provided, the vehicle including an in-vehicle TBOX, the TBOX housing of the in-vehicle TBOX being the TBOX housing in the above embodiment.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0057] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0058] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A TBOX housing, characterized in that, include: The first housing (10) is made of metal. The second housing (20) is made of non-metallic material. The second housing (20) is connected to the first housing (10). A receiving cavity is formed between the second housing (20) and the first housing (10). The second housing (20) is provided with an installation port (21) communicating with the receiving cavity. Heat sink (30) is made of metal and is located at the mounting port (21).

2. The TBOX housing according to claim 1, characterized in that, The first housing (10) and the heat sink (30) are connected by insert injection molding process.

3. The TBOX housing according to claim 1, characterized in that, The heat sink (30) has fins on the side away from the receiving cavity, and the heat sink (30) is formed by extrusion process.

4. The TBOX housing according to any one of claims 1-3, characterized in that, The first housing (10) has a first receiving groove (11) on the side near the second housing (20), and the first housing (10) has a first mounting structure (12) for mounting a circuit board (40) in the circumferential direction, and the first mounting structure (12) is arranged around the first receiving groove (11).

5. The TBOX housing according to claim 4, characterized in that, The first housing (10) has a heat dissipation protrusion (14) in the first receiving groove (11), and the heat dissipation protrusion (14) is coated with thermal grease.

6. The TBOX housing according to claim 4, characterized in that, The second housing (20) has a second receiving groove (22) on the side near the first housing (10), and the second receiving groove (22) and the first receiving groove (11) surround to form the receiving cavity.

7. The TBOX housing according to claim 6, characterized in that, The edge of the second housing (20) is provided with a notch (23), which, together with the first housing (10), forms an interface for accommodating the connector (41).

8. A vehicle-mounted TBOX, the vehicle-mounted TBOX comprising a TBOX housing, characterized in that, The TBOX housing is the TBOX housing as described in any one of claims 1-7.

9. The vehicle-mounted TBOX according to claim 8, characterized in that, The vehicle-mounted TBOX includes: Circuit board (40), the circuit board (40) is disposed in the receiving cavity of the TBOX box body, a first electrical component is provided on one side of the circuit board (40), a second electrical component is provided on the other side of the circuit board (40), the power of the second electrical component is less than the power of the first electrical component, the second electrical component is disposed close to the second housing (20), and the first electrical component is disposed close to the first housing (10).

10. A vehicle, said vehicle including an on-board TBOX, characterized in that, The TBOX housing of the vehicle-mounted TBOX is the TBOX housing as described in any one of claims 1-7.