Charging device

Abstract

The utility model discloses a charging device, which comprises a mounting rack, a charging assembly and a fan assembly, the charging assembly and the fan assembly are respectively mounted on the mounting rack, the mounting rack is provided with a front surface and a back surface opposite to each other, the charging assembly is arranged on one side, close to the front surface, of the mounting rack, and the fan assembly is arranged on one side, close to the back surface, of the mounting rack. An air outlet is formed in the side, close to the back face, of the mounting frame. The fan assembly can accelerate the fluidity of airflow, so that the convection heat exchange effect is enhanced, the heat dissipation capability of the charging equipment is enhanced, and the influence of heating of the charging equipment on the charging efficiency is reduced; meanwhile, the charging assembly is arranged close to the front face, the front face is used for making contact with the electronic equipment, the air outlet is formed in the side, close to the back face, of the mounting frame, the fan assembly can drive airflow to be exhausted out of the charging equipment from the air outlet when working, and it is prevented that hot air obtained after heat exchange blows towards the electronic equipment to affect the charging efficiency of the electronic equipment; and hot air can be prevented from blowing to the hand of the user holding the electronic equipment, so that the use experience of the user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic device accessories, in particular to a charging device. Background Art

[0002] When charging an electronic product with a charging device, both the charging device and the electronic product will generate heat. If the heat is not discharged in time, the charging efficiency of the electronic device will be affected.

[0003] In the existing wireless charger, charging is mainly through electromagnetic induction technology, which generates more heat during its working process, and usually fits with the electronic product during use. Therefore, the heat generated by the wireless charger during the working process will affect the heat dissipation of the electronic product, and further affect the charging efficiency of the electronic device. Summary of the Utility Model

[0004] In view of this, the utility model provides a new charging device to improve the problem that the existing wireless charger generates heat during charging and affects the charging efficiency.

[0005] A charging device provided in this application includes a mounting bracket, a charging component and a fan component respectively mounted on the mounting bracket. The mounting bracket has opposite front and back sides. The charging component is arranged on one side of the mounting bracket close to the front side, the fan component is arranged on one side of the mounting bracket close to the back side, and an air outlet is arranged on the mounting bracket on the side close to the back side.

[0006] In some embodiments, the mounting bracket is provided with an air inlet communicated with the air outlet, and the air inlet and the air outlet are respectively arranged on different sides of the mounting bracket.

[0007] In some embodiments, the fan component includes a fan located between the air inlet and the air outlet. The air outlet is located on one axial side of the fan, and the air inlet is located on one radial side of the fan.

[0008] In some embodiments, the fan component further includes a fan cover mounted on the mounting bracket. The fan cover is provided with a receiving cavity, an inlet and an outlet respectively communicated with the receiving cavity. The fan is received in the receiving cavity. The inlet is communicated with the air inlet, and the outlet is communicated with the air outlet.

[0009] In some embodiments, the fan cover includes a guiding portion, the guiding portion is arc-shaped, and the radial dimension of the guiding portion gradually increases along the direction from the inlet to the outlet.

[0010] In some embodiments, the fan includes fan blades, and one side of the fan blades away from the air outlet is flush with one side of the inlet away from the air outlet, or one side of the fan blades away from the air outlet is lower than one side of the inlet away from the air outlet.

[0011] In some embodiments, the charging device further includes a cooling component, which is thermally conductively connected to the charging component and at least partially located between the air inlet and the air outlet.

[0012] In some embodiments, the mounting bracket includes a first frame body, a second frame body spaced opposite to the first frame body, and a connecting column connecting the first frame body and the second frame body. The front surface and the back surface are respectively located on two opposite sides of the first frame body and the second frame body. The charging component is disposed on the first frame body, and the fan assembly and the air outlet are disposed on the second frame body.

[0013] In some embodiments, an air inlet and a heat dissipation channel are formed between the first frame body and the second frame body. The air inlet surrounds the outer periphery of the heat dissipation channel and is communicated with the air outlet through the heat dissipation channel. The charging device further includes a cooling component thermally conductively connected to the charging component, and the cooling component is at least partially located in the heat dissipation channel.

[0014] In some embodiments, the cooling component includes a refrigerating element and a radiator. Opposite sides of the refrigerating element are respectively thermally conductively connected to the charging component and the radiator, and the radiator is at least partially located in the heat dissipation channel.

[0015] In some embodiments, the radiator includes a base thermally conductively connected to the refrigerating element and a plurality of heat dissipation columns disposed on a side of the base away from the refrigerating element. The plurality of heat dissipation columns are located in the heat dissipation channel and are spaced from each other.

[0016] In some embodiments, a protruding portion is provided on one side of the mounting bracket close to the back surface. The protruding portion protrudes along the direction from the front surface to the back surface, and the protruding portion is disposed relatively close to the central area of the back surface with respect to the air outlet.

[0017] In some embodiments, the air outlet is disposed on the back surface, or the air outlet is disposed at the connection between the back surface and the protruding portion.

[0018] The charging device provided by the present utility model has a fan assembly that can accelerate the flow rate of air, thereby enhancing the effect of convective heat transfer, strengthening the heat dissipation capacity of the charging device, and reducing the impact of heat generation of the charging device on the charging efficiency. At the same time, the charging assembly is disposed close to the front surface, which is used to contact the electronic device, and the fan assembly is disposed close to the back surface. An air outlet is provided on the side of the mounting bracket close to the back surface. When the fan assembly operates, it can drive the air flow to be discharged from the air outlet to the outside of the charging device, preventing the hot air after heat exchange from blowing towards the electronic device and affecting its charging efficiency, and also preventing the hot air from blowing towards the hand of the user holding the electronic device, thus enhancing the user experience. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a charging device provided by an embodiment of the present utility model;

[0020] Figure 2 is Figure 1 a schematic diagram of another perspective of the charging device shown in ;

[0021] Figure 3 is Figure 1 a cross-sectional view of the charging device shown in without the charging cable;

[0022] Figure 4 is Figure 1 an exploded schematic diagram of the charging device shown in without the charging cable;

[0023] Figure 5 is Figure 1 a schematic diagram of the charging device shown in without the charging cable and the radiator;

[0024] Figure 6 is Figure 4 an exploded schematic diagram of the fan assembly shown in ;

[0025] Figure 7 is Figure 6 a cross-sectional view of the fan assembly shown in when assembled together.

[0026] In the figures: 10, charging device; 12, mounting bracket; 14, charging assembly; 16, fan assembly; 18, charging coil; 20, magnetic attraction member; 22, front surface; 24, back surface; 26, air outlet; 27, protruding portion; 28, air inlet; 29, fan; 30, fan cover; 32, receiving cavity; 34, entrance; 36, exit; 38, fan blade; 40, avoidance notch; 42, cover body; 44, support portion; 46, connecting portion; 48, first guiding surface; 50, second guiding surface; 52, cooling assembly; 54, first frame body; 56, second frame body; 58, connecting column; 60, heat dissipation channel; 62, refrigerating member; 64, radiator; 66, base portion; 68, heat dissipation column. Detailed Description of the Embodiment

[0027] Next, in combination with the accompanying drawings and specific embodiments, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back, inside, outside, top, bottom...) in the embodiments of the present utility model are only used to explain the relative positional relationship between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indication will also change accordingly.

[0029] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, the element can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0030] Please refer to Figures 1 to 7 , a charging device 10 provided in an embodiment of the present utility model is used to charge electronic devices such as mobile phones and tablets. In this application, the electronic device is taken as an example of a mobile phone for specific description. The charging device 10 can be a charger that needs an external power source or a mobile power source with its own power source. Moreover, the charging method of the charging device 10 can be a wired charging method or a wireless charging method. In this application, the charging device 10 is a wireless charger, and the wireless charger is externally connected to a power source through a charging cable to charge the mobile phone.

[0031] The charging device 10 includes a mounting frame 12, a charging component 14 and a fan component 16 respectively mounted on the mounting frame 12. The charging component 14 is used to charge the mobile phone, and the fan component 16 is used to accelerate the flow rate of the air flow, thereby improving the convective heat transfer efficiency between the charging device 10 and the air, enhancing the heat dissipation ability of the charging device 10, and thus reducing the influence of the heat generated by the charging device 10 during charging on the charging efficiency of the mobile phone.

[0032] The charging component 14 includes a charging coil 18 and a magnetic attracting member 20. The magnetic attracting member 20 is used to attract the magnetic element inside the mobile phone, so that the mobile phone is tightly attached to the charging device 10, and the charging coil 18 cooperates with the corresponding coil in the mobile phone to form a wireless charging effect.

[0033] The mounting bracket 12 has opposite front 22 and back 24 sides. The front 22 is for contacting the mobile phone. The charging component 14 is disposed on one side of the mounting bracket 12 close to the front 22 to reduce the distance between the charging component 14 and the mobile phone, so as to improve the charging efficiency. The back 24 is on the side of the mounting bracket 12 away from the mobile phone. The fan component 16 is disposed on one side of the mounting bracket 12 close to the back 24, and the mounting bracket 12 is provided with an air outlet 26 on the side close to the back 24. It can be understood that the air outlet 26 is disposed on the side of the mounting bracket 12 close to the back 24. For example, the mounting bracket 12 has an end close to the front 22 or an end close to the back 24. Here, the side can also be understood as an end. The air outlet 26 can be disposed on the back 24 or on other components close to the back 24. When the fan component 16 works, it can drive the air flow in the charging device 10 to be discharged from the air outlet 26 to the outside of the charging device 10, that is, drive the air flow to blow out from the air outlet 26 in a direction away from the front 22. Before the air flow is discharged from the air outlet 26, it will first exchange heat with the charging component 14, reducing the temperature of the charging component 14 and reducing the heat transferred from the charging component 14 to the mobile phone during charging. Moreover, the hot air after heat exchange with the charging component 14 is discharged in a direction away from the mobile phone, which can prevent the hot air after heat exchange from blowing towards the mobile phone, reducing the influence of the charging device 10 on the heat dissipation of the mobile phone, and at the same time can prevent the hot air from blowing towards the hand of the user holding the mobile phone, improving the user experience.

[0034] It can be understood that the air flow exchanges heat with the charging component 14. It can be that the air flow directly passes through the charging component 14 to take away the heat generated by the charging component 14 during operation, or by setting a heat-conducting element connected to the charging component 14. The heat-conducting element absorbs the heat generated by the charging component 14, and the air flow then passes through the heat-conducting element to take away the heat on the heat-conducting element, thereby indirectly taking away the heat generated by the charging component 14 during operation.

[0035] Preferably, the mounting bracket 12 is provided with a protruding portion 27 on the side close to the back 24. The protruding portion 27 protrudes along the direction from the front 22 to the back 24. The protruding portion 27 is disposed relatively closer to the central area of the back 24 than the air outlet 26. For example, there are multiple air outlets 26, and the multiple air outlets 26 are disposed close to the periphery of the back 24 and arranged circumferentially. The protruding portion 27 is disposed on the side of the air outlet 26 close to the central area of the back 24, that is, the protruding portion 27 is disposed inside the circle surrounded by the multiple air outlets 26, so that a height difference is formed between the protruding portion 27 and the back 24. The air outlet 26 can be disposed on the back 24 or on the side of the protruding portion 27 or at the connection between the back 24 and the protruding portion 27. When the charging device 10 is placed on a support surface such as a tabletop, the protruding portion 27 contacts the tabletop, and a gap is formed between the back 24 of the mounting bracket 12 and the tabletop. The air outlet 26 communicates with the gap, so that the air flow can flow out through the gap after being discharged from the air outlet 26, making the air flow discharge more smooth.

[0036] In this embodiment, the protruding portion 27 is located at the middle position of the mounting bracket 12 on the side close to the back surface 24, and the air outlet 26 surrounds the outer periphery of the protruding portion 27.

[0037] It can be understood that the protruding portion 27 and the mounting bracket 12 can be integrally formed or assembled separately.

[0038] In one embodiment, the mounting bracket 12 is provided with an air inlet 28, the air inlet 28 is communicated with the air outlet 26, the fan assembly 16 includes a fan 29, and at least a part of the fan 29 is located between the air inlet 28 and the air outlet 26. That is, when the fan 29 drives the air flow to flow from the air inlet 28 to the air outlet 26, the air flow will pass through the fan 29.

[0039] Preferably, the air inlet 28 and the air outlet 26 are respectively located on different sides of the mounting bracket 12 to prevent the incoming air and the outgoing air from interfering with each other.

[0040] The specific position of the air inlet 28 is not limited. For example, it can be arranged on the side of the mounting bracket 12 close to the front surface 22, or on the circumferential outer side of the mounting bracket 12. In this embodiment, the air outlet 26 is located on one axial side of the fan 29, and the air inlet 28 is located on one radial side of the fan 29. That is, the air inlet 28 is located on the circumferential outer side of the mounting bracket 12, and the incoming air direction and the outgoing air direction are perpendicular to each other. Since the front surface 22 of the mounting bracket 12 needs to be attached to the mobile phone, setting the air inlet 28 on the circumferential outer side of the mounting bracket 12 can reduce the influence of the mobile phone on the incoming air. At the same time, when the air flow flows towards the air inlet 28, part of the air flow will pass through the side where the mobile phone contacts the charging device 10, thereby taking away part of the heat of the mobile phone and playing an auxiliary role in dissipating the heat of the mobile phone.

[0041] It should be noted that the fan 29 rotates relative to the mounting bracket 12 around a rotation axis. The axial direction of the fan 29 is the direction where the rotation axis is located, and the radial direction of the fan 29 is the direction perpendicular to the rotation axis.

[0042] The specific type of the fan 29 is not limited. For example, a centrifugal fan 29, an axial flow fan 29, etc. In this embodiment, the fan 29 is a centrifugal fan 29. Compared with other types of fans 29, the centrifugal fan 29 has the advantages of larger air volume and lower noise.

[0043] The fan assembly 16 further includes a fan cover 30. The fan cover 30 is installed on the mounting bracket 12. The fan cover 30 is provided with a receiving cavity 32, an inlet 34 and an outlet 36 that are respectively communicated with the receiving cavity 32. The fan 29 is received in the receiving cavity 32. The inlet 34 is communicated with the air inlet 28, and the outlet 36 is communicated with the air outlet 26. When the fan 29 operates, the outside air flows towards the fan 29 through the air inlet 28, enters the fan cover 30 through the inlet 34, and finally is discharged from the air outlet 26 through the outlet 36. Since the fan 29 in the fan cover 30 is a centrifugal fan 29, the centrifugal fan 29 drives the air flow to flow along its radial direction. The air flow is blocked by the fan cover 30 during the flowing process, so as to change the flowing direction, and finally the air flow is discharged from the air outlet 26 on one side of the axial direction of the fan 29.

[0044] The fan 29 includes fan blades 38. The side of the fan blades 38 away from the air outlet 26 is flush with the side of the inlet 34 away from the air outlet 26, or the side of the fan blades 38 away from the air outlet 26 is lower than the side of the inlet 34 away from the air outlet 26, that is, the side of the fan blades 38 away from the air outlet 26 does not protrude outside the inlet 34, so as to prevent the fan blades 38 from protruding outside the inlet 34 and affecting the air intake.

[0045] Preferably, an avoidance notch 40 is provided on the outer side of the end of the fan blade 38 close to the inlet 34 for avoiding the part of the fan cover 30 close to the inlet 34, preventing the fan blade 38 from contacting the fan cover 30, and improving the overall structural compactness.

[0046] The fan cover 30 includes a cover body 42, a support part 44 and a connecting part 46. The cover body 42 is connected to the mounting bracket 12. The support part 44 is spaced from the cover body 42. The connecting part 46 is connected between the cover body 42 and the support part 44, so that the cover body 42, the support part 44 and the connecting part 46 are fixed together. The fan 29 is installed on the support part 44. The gap between the cover body 42 and the support part 44 forms the outlet 36. The inlet 34 is located on the side of the cover body 42 away from the support part 44.

[0047] The outer surface of the fan cover 30 is provided with a first guiding surface 48. The first guiding surface 48 extends along an arc trajectory towards the direction close to the central axis of the fan 29 to the inlet 34. By providing the arc-shaped first guiding surface 48 on the outer side of the fan cover 30, when the air flow moves to the outer side of the fan cover 30 under the action of the fan 29, the air flow will move towards the inlet 34 under the guidance of the first guiding surface 48, reducing the flow rate of the air flow moving in the opposite direction after being blocked by the fan cover 30, so as to play a role in increasing the air intake.

[0048] The inner surface of the fan cover 30 is provided with a second flow guiding surface 50, and the second flow guiding surface 50 extends along an arc-shaped trajectory from the inlet 34 in a direction away from the central axis of the fan 29. By providing the arc-shaped second flow guiding surface 50 on the inner side of the fan cover 30, when the air flow flows inside the fan cover 30, the fan 29 group will hinder the air flow from flowing towards the inlet 34, reducing the flow rate of the air flow in the fan cover 30 discharged from the inlet 34, thereby playing a role in increasing the air output volume.

[0049] Specifically, the housing 42 of the fan cover 30 includes a flow guiding portion 51 in an arc shape. The flow guiding portion 51 is integrally in an inverted bowl shape, such that the radial dimension of the flow guiding portion 51 increases from the inlet 34 to the outlet 36 direction. The inner surface and the outer surface of the flow guiding portion 51 are both arc-shaped and respectively form a first flow guiding surface 48 and a second flow guiding surface 50.

[0050] In one embodiment, the charging device 10 further includes a temperature reduction component 52. The temperature reduction component 52 is thermally conductively connected to the charging component 14 and is at least partially located between the air inlet 28 and the air outlet 26. The temperature reduction component 52 can absorb the heat generated during the operation of the charging component 14, thereby reducing the temperature of the charging component 14. And since the temperature reduction component 52 is at least partially located between the air inlet 28 and the air outlet 26, the air flow will pass through the temperature reduction component 52 during the process of flowing from the air inlet 28 to the air outlet 26, thereby taking away the heat on the temperature reduction component 52 and enhancing the heat absorption effect of the temperature reduction component 52 on the charging component 14. After the temperature of the charging component 14 is reduced by the temperature reduction component 52, the heat generated during the charging of the mobile phone makes its temperature higher than that of the charging device 10, enabling the mobile phone to transfer heat to the charging device 10, playing an auxiliary role in dissipating heat from the mobile phone, and thus improving the charging efficiency.

[0051] The mounting frame 12 includes a first frame body 54, a second frame body 56 and a connecting column 58. The first frame body 54 and the second frame body 56 are arranged opposite to each other at intervals, and the connecting column 58 is connected between the first frame body 54 and the second frame body 56, making the mounting frame 12 as a whole in an "I" shape.

[0052] The front surface 22 is located on the side of the first frame body 54 away from the second frame body 56, and the back surface 24 is located on the side of the second frame body 56 away from the first frame body 54. The charging component 14 and the temperature reduction component 52 are arranged on the first frame body 54, the fan assembly 16 and the air outlet 26 are arranged on the second frame body 56, and the temperature reduction component 52 is at least partially located between the first frame body 54 and the second frame body 56. By arranging the mounting frame 12 as the spaced-apart first frame body 54 and second frame body 56, the temperature reduction component 52 is partially located between the first frame body 54 and the second frame body 56, that is, the temperature reduction component 52 is partially exposed to the external environment, which is beneficial to enhancing the heat dissipation effect of the temperature reduction component 52.

[0053] An air inlet 28 and a heat dissipation channel 60 are formed between the first frame body 54 and the second frame body 56. The air inlet 28 is located on the outer periphery of the heat dissipation channel 60. The air inlet 28 surrounds the outer periphery of the heat dissipation channel 60 and communicates with the air outlet 26 through the heat dissipation channel 60, that is, the heat dissipation channel 60 communicates with the inlet 34 of the fan cover 30. At least part of the temperature reduction component 52 is located in the heat dissipation channel 60. When the fan 29 works, the outside air enters the heat dissipation channel 60 through the air inlet 28 between the first frame body 54 and the second frame body 56. When the air flow flows in the heat dissipation channel 60, it passes through the temperature reduction component 52, then moves to the fan cover 30 through the inlet 34, and finally is discharged through the outlet 36 and the air outlet 26.

[0054] The temperature reduction component 52 includes a refrigerating element 62 and a radiator 64. The opposite sides of the refrigerating element 62 are respectively in thermal conduction connection with the charging component 14 and the radiator 64. At least part of the radiator 64 is located in the heat dissipation channel 60. Specifically, the refrigerating element 62 is a semiconductor refrigeration chip, and one side of the semiconductor refrigeration chip is in thermal conduction connection with the charging coil 18 of the charging component 14. When the refrigerating element 62 works, the temperature of the side close to the charging component 14 decreases, so that the charging component 14 can transfer heat to the refrigerating element 62. The temperature of the side of the refrigerating element 62 far from the charging component 14 increases and transfers heat to the radiator 64, forming an effect of conducting the heat of the charging component 14 to the radiator 64, so as to reduce the temperature of the charging component 14, and drive the air flow to flow by the fan 29 to reduce the temperature of the radiator 64, ensuring the temperature reduction effect of the radiator 64 on the charging component 14.

[0055] It can be understood that the specific manner in which the refrigerating element 62 is in thermal conduction connection with the radiator 64 and the charging component 14 is not limited. For example, they can be directly attached together to form a thermal conduction effect, or heat-conducting metal parts or heat-conducting silicone grease and other heat-conducting parts can be provided between the refrigerating element 62, the radiator 64 and the charging component 14, and the heat-conducting effect can be indirectly formed by using the heat-conducting parts.

[0056] The heat sink 64 includes a base 66 that is thermally connected to the refrigerating component 62, and a plurality of heat dissipation columns 68 disposed on a side of the base 66 away from the refrigerating component 62. The plurality of heat dissipation columns 68 are located in the heat dissipation channel 60 and are spaced apart from each other. After the air flow enters the heat dissipation channel 60 through the air inlet 28, the air flow flows between adjacent heat dissipation columns 68, extending the movement time of the air flow in the heat dissipation channel 60, enabling the air flow to fully contact the heat dissipation columns 68, so as to take away more heat and improve the heat dissipation effect. It can be understood that the air inlet 28 and the heat dissipation channel 60 are located between the first frame body 54 and the second frame body 56. For example, the heat dissipation channel 60 is formed between the plurality of heat dissipation columns 68 of the heat sink 64. The air inlet 28 is, for example, the gap between the plurality of heat dissipation columns 68 in the outermost circle of the heat sink 64. The air inlet 28 is provided around the outer periphery of the heat dissipation channel 60 and is communicated with the heat dissipation channel 60. In this solution, the air flow passes through the heat sink 64 and the fan 29 in sequence to discharge the hot air flow. Compared with the prior art solution where the air flow first passes through the fan 29 and then reaches the heat sink 64 and finally dissipates, the amount of cold air flow contacting the heat sink 64 is higher and the heat dissipation efficiency is better.

[0057] Since the heat dissipation columns 68 are located in the heat dissipation channel 60, when the user holds the mobile phone, the fingers may contact the heat dissipation columns 68, posing a risk of scalding. In this application, by forming the air inlet 28 on the circumferential outer side of the mounting frame 12, when the air flow enters the heat dissipation channel 60 through the air inlet 28, the air flow first exchanges heat with the heat dissipation columns 68 on the outer side, that is, the heat dissipation columns 68 that may contact the fingers. At this time, the temperature of the air flow is the lowest, so the heat exchange effect with the heat dissipation columns 68 is better, that is, the cooling effect on the heat dissipation columns 68 on the outer side is better, thereby reducing the risk of finger scalding.

[0058] Preferably, the heat dissipation columns 68 are cylindrical, and the circumferential outer surface thereof is an arc surface. When the air flow contacts the heat dissipation columns 68, the arc surface generates less wind resistance, which is beneficial to reducing noise.

[0059] The above embodiments are only the preferred embodiments of the present utility model and cannot be used to limit the scope of protection of the present utility model. Any non-substantive changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A charging device, characterized in that: It includes a mounting frame and a charging component and a fan component respectively mounted on the mounting frame, the mounting frame has a relative front and back side, the charging component is arranged on the side of the mounting frame close to the front side, the fan component is arranged on the side of the mounting frame close to the back side, and the mounting frame is provided with an exhaust port on the side close to the back side.

2. The charging device according to claim 1, characterized in that: The mounting frame is provided with an air inlet communicated with the air outlet, and the air inlet and the air outlet are respectively arranged on different sides of the mounting frame.

3. The charging device according to claim 2, characterized in that: The fan assembly includes a fan located between the air inlet and the air outlet, the air outlet is located on one axial side of the fan, and the air inlet is located on one radial side of the fan.

4. The charging device according to claim 3, characterized in that: The fan assembly also includes a fan cover installed on the mounting frame, the fan cover is provided with a receiving cavity and an inlet and an outlet respectively connected to the receiving cavity, the fan is received in the receiving cavity, the inlet is connected to the air inlet, and the outlet is connected to the air outlet.

5. The charging device according to claim 4, characterized in that: The fan cover comprises an air guide portion, which is in an arc shape, and a radial dimension of the air guide portion gradually increases from the inlet to the outlet.

6. The charging device according to claim 4, characterized in that: The fan comprises a fan blade, and a side of the fan blade away from the air outlet is flush with a side of the inlet away from the air outlet, or a side of the fan blade away from the air outlet is lower than a side of the inlet away from the air outlet.

7. The charging device according to any one of claims 2 to 6, characterized in that: The charging device also includes a cooling component, which is thermally connected to the charging component and is at least partially located between the air inlet and the air outlet.

8. The charging device according to any one of claims 2 to 6, characterized in that: The mounting frame includes a first frame, a second frame spaced apart from the first frame, and a connecting column connecting the first frame and the second frame, the front face and the back face are respectively located on opposite sides of the first frame and the second frame, the charging assembly is arranged on the first frame, and the fan assembly and the exhaust port are arranged on the second frame.

9. The charging device according to claim 8, characterized in that: The air inlet and the heat dissipation channel are formed between the first frame and the second frame, the air inlet surrounds the outer periphery of the heat dissipation channel and is connected to the air outlet through the heat dissipation channel, and the charging device also includes a cooling component thermally connected to the charging component, and the cooling component is at least partially located in the heat dissipation channel.

10. The charging device according to claim 9, characterized in that: The cooling component includes a refrigeration element and a radiator. The opposite sides of the refrigeration element are thermally connected to the charging component and the radiator respectively. The radiator is at least partially located in the heat dissipation channel.

11. The charging device according to claim 10, characterized in that: The heat sink comprises a base connected to the refrigeration element through thermal conduction and a plurality of heat dissipation columns arranged on a side of the base away from the refrigeration element. The plurality of heat dissipation columns are located in the heat dissipation channel and spaced apart from each other.

12. The charging device according to claim 1, characterized in that: The mounting frame is provided with a protrusion on one side close to the back side, the protrusion protrudes from the front side to the back side, and the protrusion is arranged close to the center area of ​​the back side relative to the air outlet.

13. The charging device according to claim 12, characterized in that: The air outlet is arranged on the back surface, or the air outlet is arranged at the connection between the back surface and the protruding portion.

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