A nail gun direct current brushless motor heat dissipation assembly

Abstract

The utility model discloses a nail gun DC brushless motor heat dissipation subassembly relates to the field of nail gun. The nail gun DC brushless motor heat dissipation subassembly, including the shell body, the bottom of shell body is provided with the air intake net, and the top of shell body both sides are equipped with the air outlet grille, and the inside of shell body is provided with the air guide mechanism. The nail gun DC brushless motor heat dissipation subassembly, air intake fan starts and inhales the outside air from the air intake net, then the airflow is introduced into the airflow channel through the diffusion cover, then the airflow enters the air guide cover upwards, and the airflow of left and right sides directly passes through the flow guide groove of both sides and is discharged into the air outlet hole upwards, and the airflow of front and back sides is guided to left and right sides through the guide groove and is discharged into the air outlet hole, and is finally discharged from the air outlet grille, to form a whole annular airflow column to the DC brushless motor outside, on the one hand, complete air blowing heat dissipation is carried out to the DC brushless motor outer wall, on the other hand, complete exhaust passage is formed, avoids the turbulence in the shell body inside and influences heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of nail gun technology, specifically to a heat dissipation component for a brushless DC motor of a nail gun. Background Technology

[0002] When in use, the nail gun has a brushless motor inside, which drives the nail-laying mechanism to move and automatically lay nails. However, because the brushless motor is installed inside the nail gun's housing, the overall heat dissipation is poor.

[0003] Existing technical solutions typically involve directly setting airflow channels on the inner wall of the housing. By installing a cooling fan at one end of the airflow channel, the fan generates airflow that quickly passes through the cooling channel and is exhausted to the outside, thereby removing heat from inside the housing. However, due to the limitations of the internal structure and space of the housing, the airflow cannot flow completely through the outer wall of the motor, and can only blow air onto a part of the motor, resulting in localized overheating. At the same time, some airflow bounces back inside the housing, causing airflow interference and affecting heat dissipation. To address these issues, a heat dissipation component for a brushless DC motor in a nail gun is provided. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a heat dissipation component for a brushless DC motor in a nail gun. This solves the problem that existing nail guns are limited by the internal structure and space of the housing, which prevents airflow from flowing completely through the outer wall of the motor. Instead, airflow can only reach a portion of the motor, leading to localized overheating. Additionally, some airflow bounces back inside the housing, causing airflow interference and affecting heat dissipation.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a heat dissipation component for a brushless DC motor of a nail gun, including a housing, an air inlet mesh at the bottom of the housing, air outlet grilles on both sides of the top of the housing, and an air guiding mechanism inside the housing, the air guiding mechanism including;

[0006] An intake fan is located at the top of the exhaust grille;

[0007] A motor mounting component is fixedly installed in the outer casing, and the motor mounting component is hollow;

[0008] A diffuser is installed between the intake fan and the motor mounting component. The diffuser is used to diffuse the airflow at the intake fan to the surrounding area so that the airflow flows along the outer wall of the motor mounting component.

[0009] An air guide shroud, installed between the motor mounting component and the air outlet grille, is used to guide the airflow passing through the motor mounting component to the two sets of air outlet grilles, so that the airflow carries heat out of the outer casing.

[0010] Preferably, the motor fixing component includes a vertical grille and a connecting ring integrally formed on the inner side of the vertical grille. The multiple vertical grilles are arranged in a circular array on the outer wall of the connecting ring, so that an airflow channel is formed between the multiple vertical grilles.

[0011] Preferably, the outer wall of the plurality of vertical grid plates is integrally formed with a shaping ring, and the shaping ring is fitted with the inner wall of the outer shell.

[0012] Preferably, the diffuser is movably disposed at the bottom end of the vertical grille plate, and the inner bottom of the diffuser has an assembly slot for assembling the air intake fan.

[0013] Preferably, the diffuser cover has a diffuser channel inside, and the two ends of the diffuser channel are respectively connected to the airflow channel and the assembly groove.

[0014] Preferably, the air guide hood is movably mounted on the vertical grille plate, the air guide hood has a guide groove inside, and air outlet holes are opened on both sides of the air guide hood facing the air outlet grille. The two ends of the guide groove are respectively connected to the airflow channel and the air outlet hole.

[0015] Preferably, the front and rear inner walls of the air guide hood are provided with guide grooves, the guide grooves on the left and right sides of the air guide hood are directly connected to the air outlet, and the guide grooves on the front and rear sides of the air guide hood extend to both sides through the guide grooves and connect to the air outlet.

[0016] Preferably, the top of the outer casing has an integrally formed mounting portion, and the bottom of the outer casing is fixedly mounted with a bottom cover by screws. The air intake mesh is integrally formed on the bottom cover, and the inner side of the bottom cover abuts against the air intake fan.

[0017] This utility model discloses a heat dissipation component for a brushless DC motor of a nail gun, which has the following beneficial effects: When the intake fan is started, it draws in external air from the intake mesh, and then the airflow is diffused from the output end of the intake fan to the surrounding airflow channel through the diffuser. This allows the airflow to flow through the outer wall of the brushless DC motor, and then the airflow enters the air guide cover upward. The airflow on the left and right sides is directly discharged upward into the air outlet through the guide grooves on both sides. The airflow on the front and rear sides is guided to the left and right sides through the guide grooves and also enters the air outlet. Finally, it is discharged from the air outlet grille. This forms a complete annular airflow column outside the brushless DC motor, which not only provides complete airflow and heat dissipation to the outer wall of the brushless DC motor, but also forms a complete exhaust channel to avoid turbulence inside the outer shell from affecting heat dissipation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall outer surface structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall bottom structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the internal structure of the outer shell of this utility model;

[0022] Figure 4 This is an explosion diagram of the air guide mechanism of this utility model.

[0023] In the diagram: 1. Outer shell; 12. Bottom cover; 13. Air outlet grille; 14. Mounting part; 15. Air inlet mesh; 2. Air guide mechanism; 21. Air inlet fan; 22. Motor mounting parts; 221. Vertical grille plate; 222. Airflow channel; 223. Connecting ring; 224. Shaping ring; 23. Air guide hood; 232. Air guide groove; 233. Air outlet; 234. Guide groove; 24. Diffuser hood; 242. Assembly groove; 243. Diffuser channel. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] This application provides a heat dissipation component for a brushless DC motor in a nail gun, which solves the problem that existing nail guns are limited by the internal structure and space of the housing, resulting in airflow not being able to flow completely through the outer wall of the motor, and only being able to blow air to a part of the motor, causing local overheating of the motor. At the same time, some airflow will bounce back inside the housing, thus creating airflow interference and affecting heat dissipation.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] This utility model discloses a heat dissipation assembly for a DC brushless motor of a nail gun.

[0028] According to the appendix Figure 1-4 As shown, it includes an outer shell 1, an air inlet mesh 15 is provided at the bottom of the outer shell 1, air outlet grilles 13 are provided on both sides of the top of the outer shell 1, and an air guide mechanism 2 is provided inside the outer shell 1. The air guide mechanism 2 includes:

[0029] An intake fan 21 is located at the top of the air outlet grille 13;

[0030] The motor fixing component 22 is fixedly installed in the outer casing 1, and the motor fixing component 22 is hollow;

[0031] A diffuser 24 is installed between the intake fan 21 and the motor mounting member 22. The diffuser 24 is used to diffuse the airflow at the intake fan 21 to the surrounding area so that the airflow flows along the outer wall of the motor mounting member 22.

[0032] The air guide shroud 23 is installed between the motor mounting member 22 and the air outlet grille 13 to guide the airflow passing through the motor mounting member 22 to the two sets of air outlet grilles 13, so that the airflow carries the heat out of the outer casing 1.

[0033] The motor mounting component 22 includes a vertical grille plate 221 and a connecting ring 223 integrally formed on the inner side of the vertical grille plate 221. Multiple vertical grille plates 221 are arranged in a ring array on the outer wall of the connecting ring 223 so that an airflow channel 222 is formed between the multiple vertical grille plates 221, while reducing the contact area with the motor and avoiding affecting heat dissipation.

[0034] The outer walls of multiple vertical grating plates 221 are integrally formed with shaping rings 224, which fit against the inner wall of the outer shell 1 to prevent the vertical grating plates 221 from deforming.

[0035] The diffuser hood 24 is movably mounted at the bottom of the vertical grille plate 221. The inner bottom of the diffuser hood 24 has an assembly slot 242 for assembling the air intake fan 21, which facilitates installation.

[0036] The diffuser shroud 24 has a diffuser channel 243 inside. The two ends of the diffuser channel 243 are connected to the airflow channel 222 and the assembly slot 242 respectively, so that the external air is drawn in from the air intake net 15 and then diffused from the output end of the air intake fan 21 into the airflow channel 222 through the diffuser shroud 24, so that the airflow flows through the outer wall of the DC brushless motor.

[0037] The air guide hood 23 is movably mounted on the vertical grille plate 221. The air guide hood 23 has a guide groove 232 inside. Both sides of the air guide hood 23 have air outlet holes 233 facing the air outlet grille 13. The two ends of the guide groove 232 are connected to the airflow channel 222 and the air outlet hole 233, respectively. The front and rear inner walls of the air guide hood 23 have guide grooves 234. The guide grooves 232 on the left and right sides of the air guide hood 23 are directly connected to the air outlet hole 233. The guide grooves 232 on the front and rear sides of the air guide hood 23 extend to the sides through the guide grooves 234 and connect to the air outlet hole 233, so that the airflow enters the air guide hood 23 upward. The airflow on the left and right sides is directly discharged upward into the air outlet hole 233 through the guide grooves 232 on both sides. The airflow on the front and rear sides is guided to the left and right sides through the guide grooves 234 and also enters the air outlet hole 233, avoiding turbulence and ensuring smooth exhaust channels.

[0038] The top of the outer casing 1 is integrally formed with a mounting part 14, and the bottom of the outer casing 1 is fixedly installed with a bottom cover 12 by screws. The air intake mesh 15 is integrally formed on the bottom cover 12, and the inner side of the bottom cover 12 abuts against the air intake fan 21. The air intake mesh 15 blocks impurities carried by the air intake.

[0039] Working principle: When in use, the device installs a brushless DC motor inside the motor mounting bracket 22 and connects the intake fan 21 to the brushless DC motor through an induction circuit. When the brushless DC motor starts, the intake fan 21 starts synchronously, drawing in external air from the intake mesh 15. Then, the airflow is diffused from the output end of the intake fan 21 into the airflow channel 222 through the diffuser 24. This allows the airflow to flow over the outer wall of the brushless DC motor, and then the airflow enters the air guide shroud 23 upwards. The airflow on the left and right sides is directly discharged upwards into the air outlet 233 through the guide grooves 232 on both sides. The airflow on the front and rear sides is guided to the left and right sides through the guide grooves 234 and also enters the air outlet 233. Finally, it is discharged from the air outlet grille 13. This forms a complete annular airflow column outside the brushless DC motor, which not only provides complete airflow and heat dissipation to the outer wall of the brushless DC motor, but also forms a complete exhaust channel, preventing turbulence inside the outer casing 1 from affecting heat dissipation.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation assembly for a brushless DC motor in a nail gun, comprising a housing (1), characterized in that, An air inlet mesh (15) is provided at the bottom of the outer shell (1), and air outlet grilles (13) are provided on both sides of the top of the outer shell (1). An air guide mechanism (2) is provided inside the outer shell (1), and the air guide mechanism (2) includes: An intake fan (21) is located on top of the exhaust grille (13); The motor fixing component (22) is fixedly installed in the outer shell (1), and the motor fixing component (22) is hollow; A diffuser (24) is installed between the intake fan (21) and the motor mounting (22). The diffuser (24) is used to diffuse the airflow at the intake fan (21) to the surrounding area so that the airflow flows along the outer wall of the motor mounting (22). An air guide shroud (23) is installed between the motor mounting bracket (22) and the air outlet grille (13) to guide the airflow flowing through the motor mounting bracket (22) to the two sets of air outlet grilles (13) so that the airflow carries the heat out of the outer casing (1).

2. The heat dissipation assembly for a brushless DC motor of a nail gun according to claim 1, characterized in that: The motor fixing component (22) includes a vertical grille plate (221) and a connecting ring (223) integrally formed on the inner side of the vertical grille plate (221). The multiple vertical grille plates (221) are arranged in a ring array on the outer wall of the connecting ring (223) so that an airflow channel (222) is formed between the multiple vertical grille plates (221).

3. The heat dissipation assembly for a brushless DC motor of a nail gun according to claim 2, characterized in that: The outer walls of the plurality of vertical grid plates (221) are integrally formed with shaping rings (224), which are attached to the inner wall of the outer shell (1).

4. The heat dissipation assembly for a brushless DC motor of a nail gun according to claim 2, characterized in that: The diffuser hood (24) is movably disposed at the bottom end of the vertical grille plate (221), and the inner bottom of the diffuser hood (24) is provided with an assembly slot (242) for assembling the air intake fan (21).

5. The heat dissipation assembly for a brushless DC motor of a nail gun according to claim 4, characterized in that: The diffuser cover (24) has a diffuser channel (243) inside, and the two ends of the diffuser channel (243) are connected to the airflow channel (222) and the assembly groove (242) respectively.

6. The heat dissipation assembly for a brushless DC motor of a nail gun according to claim 2, characterized in that: The air guide hood (23) is movably mounted on the vertical grille plate (221). The air guide hood (23) has a guide groove (232) inside. Both sides of the air guide hood (23) have air outlet holes (233) facing the air outlet grille (13). The two ends of the guide groove (232) are connected to the airflow channel (222) and the air outlet hole (233) respectively.

7. A heat dissipation assembly for a brushless DC motor of a nail gun according to claim 6, characterized in that: The air guide hood (23) has guide grooves (234) on its front and rear inner walls. The guide grooves (232) on the left and right sides of the air guide hood (23) are directly connected to the air outlet (233) upwards. The guide grooves (232) on the front and rear sides of the air guide hood (23) extend to both sides through the guide grooves (234) and connect to the air outlet (233).

8. A heat dissipation assembly for a brushless DC motor of a nail gun according to claim 6, characterized in that: The top of the outer shell (1) is integrally formed with a mounting part (14), and the bottom of the outer shell (1) is fixedly installed with a bottom cover (12) by screws. The air intake mesh (15) is integrally formed on the bottom cover (12), and the inner side of the bottom cover (12) abuts against the air intake fan (21).

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