A battery heat dissipation structure for a hair dryer

Abstract

The utility model relates to a battery heat dissipation structure of a hair dryer, a nozzle, a motor compartment, and a battery compartment; the nozzle is arranged in front of the motor compartment, wherein a motor is arranged in the motor compartment, a battery is arranged in the battery compartment, the motor and the battery are electrically connected, the battery compartment is located at the bottom of the motor compartment, an air flow channel is formed in the motor compartment, wherein the air flow channel is formed with a protrusion, wherein the cross-sectional shape of the protrusion is gradually reduced and then gradually expanded, the battery compartment is provided with ventilation holes, the ventilation holes are located below or at the bottom of the protrusion, and the bottom of the battery compartment is provided with heat dissipation holes. The motor compartment of the utility model is provided with a "streamlined boss", which uses the Bernoulli principle to form a negative pressure suction force, absorbs the heat in the battery compartment into the motor compartment, blows it away, and has a short air duct path and high heat dissipation efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of hair dryers, and particularly relates to a battery heat dissipation structure of a hair dryer. Background Art

[0002] The battery of an existing hair dryer is usually arranged inside the handle. When used for a long time, the battery temperature is high, which will reduce the service life of the battery on the one hand, and increase the temperature of the handle on the other hand, affecting the user experience.

[0003] In the existing CN211048631U, the air outlet 11 connects the interior of the housing 1 with the battery compartment 21 of the handle 2, but the air outlet 11 is located below the blades, and the heat dissipation efficiency is low.

[0004] The sixth air inlet hole 1612 in the existing CN220109314U can connect the spaces on the upper and lower sides of the fixed block 1610, so that the airflow can enter the connecting cavity 1120 above the fixed block 1610 through the sixth air inlet hole 1612, but it mainly forms a reflux space, and the heat dissipation path is long, which affects the heat dissipation efficiency of the battery. Utility Model Content

[0005] The purpose of the utility model is to improve the heat dissipation efficiency of the battery inside the handle of the hair dryer and improve the user experience by setting a suitable air inlet position and flow channel.

[0006] The technical solution of the utility model is a battery heat dissipation structure of a hair dryer, a nozzle, a motor compartment and a battery compartment; the nozzle is arranged in front of the motor compartment, wherein a motor is arranged in the motor compartment, a battery is arranged in the battery compartment, the motor and the battery are electrically connected, the battery compartment is located at the bottom of the motor compartment, an air flow channel is formed in the motor compartment, wherein the air flow channel forms a protrusion, wherein the cross-sectional shape of the protrusion is gradually reduced and then gradually expanded, the battery compartment is provided with ventilation holes, the ventilation holes are located below or at the bottom of the protrusion, and the bottom of the battery compartment is provided with heat dissipation holes.

[0007] The protrusion is an annular protrusion, the ventilation hole is located at the bottom of the annular protrusion, and the cross section of the annular protrusion is an arc.

[0008] Furthermore, the arc center angle of the arc is an acute angle.

[0009] Furthermore, a fan blade is arranged in the motor compartment, and the annular protrusion is located below the airflow direction of the motor and the fan blade.

[0010] Furthermore, the annular protrusion is arranged between the air nozzle and the motor.

[0011] Furthermore, the annular raised portion is provided with a notch, and the ventilation hole is provided at the notch.

[0012] Furthermore, a control board is arranged in the battery compartment, the control board is electrically connected to the battery, and the control board is arranged between the ventilation hole and the battery.

[0013] Furthermore, the motor control board is arranged at the front side of the motor compartment, and the motor control board is connected to the control board through a wire, and the wire passes through the ventilation hole.

[0014] Compared with the prior art, the utility model has the following benefits:

[0015] The motor compartment is equipped with a "streamlined boss" which uses the Bernoulli principle to form negative pressure suction, which absorbs the heat in the battery compartment into the motor compartment and blows it away. The air duct path is short and the heat dissipation efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a rear view of the hair dryer of the utility model;

[0017] Figure 2 It is a cross-sectional view of the hair dryer at position AA in the utility model;

[0018] Figure 3 It is a cross-sectional view of the hair dryer at position BB in the utility model;

[0019] Figure 4 It is a cross-sectional view of the hair dryer at CC in the utility model;

[0020] Figure 5 A three-dimensional diagram of a hair dryer in the utility model;

[0021] Among them, the air nozzle 10; the motor compartment 20; the protrusion 21; the notch 22; the motor 23; the motor control board 24; the wire 25; the fan blade 26; the battery compartment 30; the ventilation hole 31; the heat dissipation hole 32; the control board 33; and the battery 34. DETAILED DESCRIPTION

[0022] like Figure 1 and Figure 2 As shown, a heat dissipation structure of a battery 34 of a hair dryer includes a nozzle 10, a motor compartment 20, and a battery compartment 30; the nozzle 10 is arranged in front of the motor compartment 20, wherein a motor 23 is arranged in the motor compartment 20, and a battery 34 is arranged in the battery compartment 30, and the motor 23 is electrically connected to the battery 34, and the battery compartment 30 is located at the bottom of the motor compartment 20, and an air flow channel is formed in the motor compartment 20, wherein the air flow channel forms a protrusion 21, wherein the cross-sectional shape of the protrusion 21 gradually shrinks and then gradually expands, and the battery compartment 30 is provided with ventilation holes 31, and the ventilation holes 31 are located below or at the bottom of the protrusion 21, and the bottom of the battery compartment 30 is provided with heat dissipation holes 32.

[0023] The protrusion 21 is an annular protrusion 21 , the ventilation hole 31 is located at the bottom of the annular protrusion 21 , and the cross section of the annular protrusion 21 is an arc.

[0024] Furthermore, the arc center angle of the arc is an acute angle.

[0025] Furthermore, a motor 23 and a fan blade 26 are disposed in the motor compartment 20 , and the annular protrusion 21 is located below the motor 23 and the fan blade 26 in the airflow direction.

[0026] Furthermore, the annular protrusion 21 is disposed between the air nozzle 10 and the motor 23 .

[0027] Furthermore, a notch 22 is provided in a portion of the annular protrusion 21 , and the ventilation hole 31 is provided at the notch 22 .

[0028] Furthermore, a control board 33 and a battery 34 are disposed in the battery compartment 30 . The control board 33 is electrically connected to the battery 34 . The control board 33 is disposed between the ventilation hole 31 and the battery 34 .

[0029] Furthermore, the motor control board 24 is disposed at the front side of the motor compartment 20 , and the motor control board 24 is connected to the control board 33 via a wire 25 , and the wire 25 passes through the ventilation hole 31 .

[0030] The principle of the utility model is:

[0031] The motor compartment 20 is provided with a "streamlined boss" which utilizes the Bernoulli principle to form a negative pressure suction force to absorb the heat in the battery compartment 30 into the motor compartment 20 and blow it away. The air duct path is short and the heat dissipation efficiency is high.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery heat dissipation structure for a hair dryer, characterized in that: Air nozzle, motor compartment, battery compartment; The air nozzle is arranged in front of the motor compartment, wherein a motor is arranged in the motor compartment, a battery is arranged in the battery compartment, the motor and the battery are electrically connected, the battery compartment is located at the bottom of the motor compartment, an air flow channel is formed in the motor compartment, wherein a protrusion is formed in the air flow channel, wherein the cross-sectional shape of the protrusion gradually decreases and then gradually expands, the battery compartment is provided with ventilation holes, the ventilation holes are located below or at the bottom of the protrusion, and the bottom of the battery compartment is provided with heat dissipation holes.

2. The battery heat dissipation structure according to claim 1, characterized in that: The protrusion is an annular protrusion, the ventilation hole is located at the bottom of the annular protrusion, and the cross section of the annular protrusion is an arc.

3. The battery heat dissipation structure according to claim 2, characterized in that: The central angle of an arc is an acute angle.

4. The battery heat dissipation structure according to claim 3, characterized in that: The annular protrusion is arranged between the air nozzle and the motor.

5. The battery heat dissipation structure according to claim 4, characterized in that: The annular raised portion is provided with a notch, and the ventilation hole is provided at the notch.

6. The battery heat dissipation structure according to claim 5, characterized in that: A control panel is arranged in the battery compartment, the control panel is electrically connected to the battery, and the control panel is arranged between the ventilation hole and the battery.

7. The battery heat dissipation structure according to claim 6, characterized in that: The motor control board is arranged at the front side of the motor compartment, and the motor control board is connected with the control board through a wire, and the wire passes through the ventilation hole.

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