A charging box and a car

Abstract

This application relates to a charging box and an automobile. The charging box includes a box body, a circuit board, a charging interface, and a connector. The box body has a receiving cavity, and the circuit board is housed within the receiving cavity. One end of the charging interface is electrically connected to the circuit board, and the other end of the charging interface extends out of the box body. One end of the connector is electrically connected to the circuit board, and the other end of the connector is exposed outside the box body. The connector is used for electrical connection to the automobile. At least one outer surface of the box body is recessed to form multiple heat dissipation grooves. With this charging box, the heat dissipation area is increased and the heat dissipation efficiency is improved because at least one outer surface of the box body has been recessed to form multiple heat dissipation grooves.

Description

Technical Field

[0001] This application relates to the field of charging technology, and more particularly to a charging box and an automobile. Background Technology

[0002] With the widespread adoption of smart devices, the demand for portable power banks is growing rapidly. Smartphones, tablets, laptops, and other portable electronic devices have become indispensable parts of daily life and work. However, the limited battery life of these smart devices often fails to meet users' needs for extended use. Therefore, the ability to charge these devices anytime, anywhere is particularly important.

[0003] Traditional charging methods typically rely on power outlets in homes or offices, which is extremely inconvenient when users are out and about.

[0004] The in-vehicle charging box is an innovative solution specifically designed for use in the automotive environment. This charging box utilizes the vehicle's power system to charge smart devices, allowing drivers and passengers to conveniently charge their devices while traveling. However, in developing this application, the applicant discovered that the outer surface of existing charging boxes is flat, which affects heat dissipation. Utility Model Content

[0005] In view of the above problems, embodiments of this application provide a charging box and a car that overcome or at least partially solve the above problems.

[0006] According to one aspect of the embodiments of this application, a charging box is provided, including a box body, a circuit board, a charging interface, and a connector; the box body is provided with a receiving cavity, and the circuit board is received in the receiving cavity; one end of the charging interface is electrically connected to the circuit board, and the other end of the charging interface extends out of the box body; one end of the connector is electrically connected to the circuit board, and the other end of the connector is exposed outside the box body, and the connector is used for electrical connection to an automobile; at least one outer surface of the box body is recessed to form a plurality of heat dissipation grooves.

[0007] In one alternative embodiment, the circuit board houses electronic components, and the charging case further includes a thermally conductive silicone pad disposed in the receiving cavity, the thermally conductive silicone pad being respectively attached to the electronic components and the case body.

[0008] In one alternative embodiment, the housing extends toward the electronic component with a thermally conductive portion, and the thermally conductive silicone pads are respectively attached to the side of the electronic component away from the circuit board and the side of the thermally conductive portion facing the electronic component.

[0009] In one alternative embodiment, the housing has a first wall having a first outer surface and a first inner surface disposed opposite to each other, the first outer surface being recessed toward the receiving cavity to form the heat dissipation groove, and the first inner surface extending toward the electronic component having the heat-conducting portion.

[0010] In one alternative approach, the plurality of heat dissipation slots are arranged at intervals along a first direction.

[0011] In one alternative embodiment, the housing is provided with an air vent, and the charging case further includes a fan disposed in the receiving cavity and facing the air vent. The fan is used to dissipate the heat generated by the circuit board during operation through the air vent.

[0012] In one alternative embodiment, the charging case further includes a temperature control switch electrically connected to the circuit board and the fan. The temperature control switch is used to control the fan to turn on when the temperature inside the containment cavity is higher than a first preset value, and to control the fan to turn off when the temperature inside the containment cavity is lower than a second preset value.

[0013] In one alternative embodiment, the charging interface includes a first connecting portion, a second connecting portion, and a third connecting portion. The first connecting portion and the second connecting portion are electrically connected, and the first connecting portion is electrically connected to the circuit board. The housing is provided with a through hole, and the second connecting portion extends out of the housing body along the through hole. The third connecting portion is disposed around the first connecting portion and / or the second connecting portion. The third connecting portion is sealed to the housing body at the through hole.

[0014] In one alternative embodiment, the third connecting portion extends with a plurality of latches, the plurality of latches being arranged around the through hole, and the charging box further includes a sealing strip, the sealing strip being engaged with the latches, the sealing strip being disposed against the inner surface of the box body, and the sealing strip being arranged around the through hole.

[0015] According to one aspect of the embodiments of this application, an automobile is provided, including the aforementioned charging box.

[0016] The beneficial effects of this application embodiment are as follows: A charging case is provided, including a case body, a circuit board, a charging interface, and a connector; the case body has a receiving cavity, and the circuit board is received in the receiving cavity; one end of the charging interface is electrically connected to the circuit board, and the other end of the charging interface extends out of the case body; one end of the connector is electrically connected to the circuit board, and the other end of the connector is exposed outside the case body, and the connector is used for electrical connection to an automobile; at least one outer surface of the case body is recessed to form a plurality of heat dissipation grooves. With this charging case, because at least one outer surface of the case body is recessed to form a plurality of heat dissipation grooves, the heat dissipation area is increased, and the heat dissipation efficiency of the charging case is improved. Attached Figure Description

[0017] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0018] Figure 1 This is a schematic diagram of the charging box provided in an embodiment of this application.

[0019] Figure 2 This is a schematic diagram of the charging box provided in an embodiment of this application from another perspective.

[0020] Figure 3 The embodiments of this application provide the following: Figure 1 A sectional view of P.

[0021] Figure 4 This is an exploded view of the charging box provided in an embodiment of this application.

[0022] The labels in the attached diagram are as follows:

[0023] 100. Charging case;

[0024] 10. Box body; 20. Circuit board; 30. Charging interface; 40. Connector; 50. Electronic components; 60. Thermal conductive silicone sheet; 70. Fan; 80. Sealing strip;

[0025] 101. Receiving cavity; 102. Heat dissipation groove; 103. Air vent; 104. Through hole;

[0026] 10a. Thermal conductive part;

[0027] 11. Top shell; 12. Base;

[0028] 111, First wall; 1111, First outer surface; 1112, First inner surface;

[0029] 301. First connecting part; 302. Second connecting part; 303. Third connecting part; 3031. Buckle; 3032. Limiting protrusion;

[0030] 801. Starting end; 802. Ending end;

[0031] D1, First Direction. Detailed Implementation

[0032] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly attached to the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0034] Please refer to the following: Figures 1 to 4 This application provides a charging case 100, including a case body 10, a circuit board 20, a charging interface 30, and a connector 40. The case body 10 has a receiving cavity 101, and the circuit board 20 is housed in the receiving cavity 101. One end of the charging interface 30 is electrically connected to the circuit board 20, and the other end of the charging interface 30 extends outside the case body 10. One end of the connector 40 is electrically connected to the circuit board 20, and the other end of the connector 40 is exposed outside the case body 10. The connector 40 is used for electrical connection to a vehicle. At least one outer surface of the case body 10 is recessed to form a plurality of heat dissipation grooves 102. With this charging case 100, since at least one outer surface of the case body 10 of the charging case 100 is recessed to form a plurality of heat dissipation grooves 102, compared with the case where the outer surface of the case body 10 in the prior art is flat, the setting of heat dissipation grooves 102 increases the heat dissipation area and improves the heat dissipation efficiency of the charging case 100 while keeping the size of the charging case 100 unchanged.

[0035] It is worth noting that in some implementations of this application, the other end of the charging interface 30 is a Type-C interface, which supports Type-C dual-interface blind insertion recognition.

[0036] It is worth noting that in some embodiments, the charging box 100 has a built-in fast charging protocol parsing module such as PD3.2 and QC4+ / QC3.0.

[0037] It is worth noting that in some implementations of this application, there are multiple charging ports 30, which are distributed in the housing 10 to support simultaneous charging of multiple devices. For example, laptops, mobile phones and tablets can be charged at the same time.

[0038] In some embodiments, the charging box 100 integrates a microcontroller unit (not shown) to detect the load current of each of the charging ports 30 in real time.

[0039] In some embodiments, the charging case 100 supports a dynamic power allocation algorithm, with a total power range of 140W-300W. For example, the allocation method is 60W for mobile phone + 60W for tablet + 140W for laptop, or 60W for laptop + 60W for tablet + 30W for mobile phone.

[0040] In some embodiments, the power module used in the charging box 100 is an LLC resonant circuit.

[0041] In some embodiments, the microcontroller unit is connected to a current controller (not shown). As the core of the system, the microcontroller unit is responsible for real-time detection of the load current of each charging port 30. The microcontroller unit acquires the current state of each port using high-precision current sampling technology, which is the basis for dynamic power allocation. The current controller then precisely adjusts the current of each charging port 30 according to the instructions of the microcontroller unit. When the microcontroller unit detects a change in the load current of a certain port, it immediately calculates a new power allocation scheme and adjusts the current of the corresponding port through the current controller to achieve dynamic power allocation. The power module (not shown), as the power conversion core of the charging box 100, provides efficient and stable power output. The power module adjusts its output power according to the instructions of the current controller to meet the power requirements of each charging port 30.

[0042] It is worth noting that the program steps involved in the microcontroller unit are existing program steps, and the microcontroller unit also uses existing processors, such as ARM's MCU (Micro-controller Unit).

[0043] It is worth noting that in some implementations of this application, when the microcontroller detects that the charging interface 30 is in an idle state, it shuts off the power supply to the charging interface 30.

[0044] It is worth noting that in some implementations of this application, the microcontroller can also control the average distribution of total power to each charging port 30.

[0045] It is worth noting that in some implementations of this application, the microcontroller unit can also control the full-load charging of higher-power devices, such as a laptop with 100W charging and a mobile phone with 20W charging.

[0046] It is worth noting that in some implementations of this application, the material of the box 10 is aluminum alloy, which ensures the heat dissipation efficiency of the box 10.

[0047] In some embodiments, the wall thickness of the housing 10 is no more than 2 mm, further ensuring the heat dissipation efficiency of the housing 10.

[0048] It is worth noting that in some implementations of this application, the housing 10 includes an upper shell 11 and a base 12, the upper shell 11 and the base 12 are detachably connected, and the receiving cavity 101 is formed between the upper shell 11 and the base 12.

[0049] In some embodiments, the circuit board 20 is provided with electronic components 50, and the charging box 100 further includes a thermally conductive silicone sheet 60 disposed in the receiving cavity 101. The thermally conductive silicone sheet 60 is respectively attached to the electronic components 50 and the box body 10. The thermally conductive silicone sheet 60 further improves the heat dissipation efficiency of the charging box 100.

[0050] In some embodiments, there are multiple electronic components 50 and multiple thermally conductive silicone pads 60, with one thermally conductive silicone pad 60 respectively attached between one electronic component 50 and the housing 10.

[0051] In some embodiments, the housing 10 extends toward the electronic component 50 with a heat-conducting portion 10a, which is actually located in the receiving cavity 101. The thermally conductive silicone sheet 60 is respectively attached to the side of the electronic component 50 away from the circuit board 20 and the side of the heat-conducting portion 10a facing the electronic component 50. By setting the heat-conducting portion 10a, the height of the electronic component 50 is adapted to ensure that the heat generated by the operation of the electronic component 50 is directly transferred to the heat-conducting portion 10a formed by extending from the housing 10 through the thermally conductive silicone sheet 60.

[0052] It is understood that when there are multiple electronic components 50, there are multiple heat-conducting parts 10a, and a heat-conducting silicone sheet 60 is respectively attached to the side of an electronic component 50 away from the circuit board 20 and the side of a heat-conducting part 10a facing the electronic component 50.

[0053] In some embodiments, the housing 10 has a first wall 111, which has a first outer surface 1111 and a first inner surface 1112 disposed opposite to each other. The first outer surface 1111 is recessed toward the receiving cavity 101 to form the heat dissipation groove 102. The first inner surface 1112 extends toward the electronic component 50 with the heat-conducting part 10a. Through this arrangement, the heat generated by the electronic component 50 is transferred and dissipated through the heat-conducting part 10a and the first outer surface 1111. The heat dissipation area of ​​the first outer surface 1111 is large, which further improves the heat dissipation efficiency of the charging box 100.

[0054] It is worth noting that when the box body 10 includes an upper shell 11 and a base 12, the first wall 111 is located on the upper shell 11.

[0055] In some embodiments, the plurality of heat dissipation slots 102 are arranged at intervals along a first direction D1.

[0056] In some embodiments, the housing 10 is provided with an air vent 103, and the charging box 100 also includes a fan 70. The fan 70 is disposed in the receiving cavity 101 and faces the air vent 103. The fan 70 is used to dissipate the heat generated by the circuit board 20 during operation through the air vent 103. With this arrangement, the heat generated by the circuit board 20 and the electronic components 50 on the circuit board 20 during operation can also be dissipated by the fan 70, further improving the heat dissipation efficiency of the charging box 100.

[0057] In some embodiments, the fan 70 is a brushless fan 70.

[0058] In some implementations of this application, the air vent 103 array is configured.

[0059] It is worth noting that when the box body 10 includes an upper shell 11 and a base 12, the air vent 103 is located on the base 12.

[0060] In some embodiments, the fan 70 is mounted on the base 12.

[0061] In some embodiments, the fan 70 and the thermally conductive silicone pad 60 are located on both sides of the circuit board 20, thereby cooling both sides of the circuit board 20 respectively and improving the efficiency and uniformity of heat dissipation for the charging case 100.

[0062] In some embodiments, the charging case 100 further includes a temperature control switch (not shown), which is electrically connected to the circuit board 20 and the fan 70. The temperature control switch is used to control the fan 70 to turn on when the temperature inside the receiving cavity 101 is higher than a first preset value, and the temperature control switch is also used to control the fan 70 to turn off when the temperature inside the receiving cavity 101 is lower than a second preset value. With this setting, not only can the heat dissipation efficiency of the charging case 100 be improved by the fan 70, but it is also beneficial to save energy.

[0063] In some embodiments, the first preset value is 50°C and the second preset value is 45°C.

[0064] It is worth noting that when the charging box 100 integrates the microcontroller unit, the temperature control switch is connected to the microcontroller unit, and the microcontroller unit controls the operation of the temperature control switch.

[0065] In some embodiments, the charging interface 30 includes a first connecting portion 301, a second connecting portion 302, and a third connecting portion 303. The first connecting portion 301 and the second connecting portion 302 are electrically connected. The first connecting portion 301 is electrically connected to the circuit board 20. The housing 10 is provided with a through hole 104. The second connecting portion 302 extends out of the housing 10 along the through hole 104. The third connecting portion 303 is arranged around the first connecting portion 301 and / or the second connecting portion 302. The third connecting portion 303 is sealed to the housing 10 at the through hole 104. This arrangement makes the charging housing 100 waterproof and dustproof, reducing the risk of short circuit or failure of the charging housing 100.

[0066] It is worth noting that when the box body 10 includes the upper shell 11 and the base 12, a portion of the through hole 104 is located on the upper shell 11 and another portion of the through hole 104 is located on the base 12. Alternatively, in some embodiments, the through hole 104 is located on the upper shell 11 or the through hole 104 is located on the base 12.

[0067] It is understood that when there are multiple charging ports 30, there are multiple through holes 104, and a second connecting part 302 of a charging port 30 extends out of the housing 10 along a through hole 104.

[0068] In some embodiments, the third connecting portion 303 extends with a plurality of snap fasteners 3031, which are arranged around the through hole 104. The charging box 100 also includes a sealing strip 80, which is snapped onto the snap fasteners 3031 and abuts against the inner surface of the box body 10. The sealing strip 80 is arranged around the through hole 104 and is used to seal the box body 10 and the third connecting portion 303 at the through hole 104. The snap fasteners 3031 and the sealing strip 80 improve a specific way in which the third connecting portion 303 and the box body 10 are sealed and connected at the through hole 104.

[0069] In some embodiments, the third connecting portion 303 extends with a limiting protrusion 3032. The starting end 801 of the sealing strip 80 is positioned close to the limiting protrusion 3032, and the ending end 802 of the sealing strip 80 is positioned close to the limiting protrusion 3032. The ending end 802 of the sealing strip 80, after passing around the limiting protrusion 3032, overlaps with the starting end 801 along the winding direction of the sealing strip 80. This arrangement further enhances the sealing, waterproofing, and dustproofing properties of the charging box 100.

[0070] This application also provides an embodiment of a car, which includes the charging box 100. The specific structure and function of the charging box 100 can be found in the above embodiments, and will not be repeated here.

[0071] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A charging case, characterized in that, include: Box body, circuit board, charging interface and connector; The housing is provided with a receiving cavity, and the circuit board is received in the receiving cavity; One end of the charging interface is electrically connected to the circuit board, and the other end of the charging interface extends out of the box body; One end of the connector is electrically connected to the circuit board, and the other end of the connector is exposed outside the housing. The connector is used for electrical connection to a vehicle. At least one outer surface of the box body is recessed to form a plurality of heat dissipation grooves; The wall thickness of the box body is no more than 2mm; The charging interface includes a first connecting part, a second connecting part, and a third connecting part. The first connecting part and the second connecting part are electrically connected. The first connecting part is electrically connected to the circuit board. The housing is provided with a through hole. The second connecting part extends out of the housing body along the through hole. The third connecting part is arranged around the first connecting part and / or the second connecting part. The third connecting part is sealed to the housing body at the through hole. The third connecting part extends with multiple buckles, which surround the through hole. The charging box also includes a sealing strip, which is snapped onto the buckles, abuts against the inner surface of the box body, and surrounds the through hole. The third connecting part extends with a limiting protrusion. The starting end of the sealing strip is located near the limiting protrusion, and the ending end of the sealing strip is located near the limiting protrusion. The ending end of the sealing strip passes around the limiting protrusion and then coincides with the starting end along the winding direction of the sealing strip.

2. The charging case according to claim 1, characterized in that, The circuit board is equipped with electronic components, and the charging box also includes a thermally conductive silicone sheet disposed in the receiving cavity, the thermally conductive silicone sheet being respectively attached to the electronic components and the box body.

3. The charging case according to claim 2, characterized in that, The housing extends toward the electronic component with a heat-conducting portion, and the heat-conducting silicone pads are respectively attached to the side of the electronic component away from the circuit board and the side of the heat-conducting portion facing the electronic component.

4. The charging case according to claim 3, characterized in that, The housing has a first wall, which has a first outer surface and a first inner surface disposed opposite to each other. The first outer surface is recessed toward the receiving cavity to form the heat dissipation groove, and the first inner surface extends toward the electronic component with the heat-conducting portion.

5. The charging case according to any one of claims 1-4, characterized in that, The plurality of heat dissipation slots are arranged at intervals along the first direction.

6. The charging case according to any one of claims 1-4, characterized in that, The box body is provided with an air vent, and the charging box also includes a fan. The fan is disposed in the receiving cavity and faces the air vent. The fan is used to dissipate the heat generated by the circuit board during operation through the air vent.

7. The charging case according to claim 6, characterized in that, The charging box also includes a temperature control switch, which is electrically connected to the circuit board and the fan. The temperature control switch is used to control the fan to turn on when the temperature inside the containment cavity is higher than a first preset value, and to control the fan to turn off when the temperature inside the containment cavity is lower than a second preset value.

8. A car, characterized in that, Includes the charging case as described in any one of claims 1-7.

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