Chain saw

Abstract

The utility model provides a chain saw which comprises an air duct system, and the air suction end of the air duct system is located on one side of a control part of the chain saw and on one side of a power source part of the chain saw so as to absorb hot air emitted by the control part and the power source part. The air outlet end of the air duct system is arranged towards a chain of the chain saw so as to blow air to the chain and further blow off other cutting impurities such as wood chips accumulated on the chain; and the air outlet end of the air duct system is communicated with the atmospheric environment, so that air flow blown to the chain flows into the atmospheric environment after blowing through the chain. The heat dissipation of the control part and the power supply part can be realized, and other cutting impurities such as wood chips accumulated on the chain can be blown off by utilizing the hot air flow to be dissipated, so that the impurities are prevented from blocking the chain wheel.

Description

Technical Field

[0001] This utility model relates to the field of chainsaw technology, and more specifically, to a chainsaw. Background Technology

[0002] Chainsaws, as a common power tool, are widely used in wood cutting, garden pruning, and other fields. However, during operation, the high-speed operation of the battery pack, main control board, and motor generates a large amount of heat. If this heat is not properly dissipated into the atmosphere, the internal temperature of the chainsaw will become too high after prolonged operation, which may lead to the risk of the machine burning out and seriously affect its service life and safety.

[0003] Furthermore, when cutting wood, sawdust or other cutting residue easily accumulates on the sprocket, especially at the upper left corner of the sprocket. Due to its unique structure, sawdust tends to accumulate here, causing blockage. Once the sprocket is blocked, the chainsaw's cutting efficiency will drop significantly, and it may even stop working due to excessive resistance, causing inconvenience to the user.

[0004] Existing chainsaws cannot simultaneously address both heat dissipation and chip removal, resulting in insufficient heat dissipation and sprocket blockage issues when subjected to continuous high-intensity work. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a chainsaw that can simultaneously take into account heat dissipation and chip removal.

[0006] To achieve the above objectives, the technical solution provided by an embodiment of this utility model is as follows:

[0007] A chainsaw includes an air duct system, wherein the air intake end of the air duct system is located on one side of the control component and on one side of the power supply unit of the chainsaw to absorb the heat emitted by the control component and the power supply unit; the air outlet end of the air duct system is disposed towards the chain of the chainsaw and connected to the atmospheric environment to blow air onto the chain and then flow into the atmospheric environment.

[0008] Furthermore, the air duct system includes: an intake air duct section; a first air duct section, the intake end of which is connected to the outlet end of the first air duct section, the inlet end of which is located on one side of the control component, so that the hot air emitted by the control component enters the intake air duct section through the first air duct section; a second air duct section, the intake end of which is connected to the outlet end of the second air duct section, the inlet end of which is located on one side of the power supply unit, so that the hot air emitted by the power supply unit enters the intake air duct section through the second air duct section; the intake end of the air duct system includes the inlet end of the first air duct section and the inlet end of the second air duct section; the outlet end of the intake air duct section forms the outlet end of the air duct system; or, the outlet end of the intake air duct section is connected to the outlet end of the air duct system.

[0009] Furthermore, the air duct system includes: an intake air duct section; a third air duct section, wherein the outlet end of the intake air duct section is connected to the inlet end of the third air duct section, and the outlet end of the third air duct section is the outlet end of the air duct system; the intake end of the intake air duct section forms the intake end of the air duct system; or, the intake end of the intake air duct section is connected to the intake end of the air duct system.

[0010] Furthermore, the chainsaw also includes a fan section located within the air intake duct section to draw in hot air emitted from the control components and power supply section when the fan section rotates.

[0011] Furthermore, the chainsaw also includes a first support, on which a first cavity and an air intake duct section are provided; at least a portion of the air intake duct section is located within the first cavity, such that the air intake end of the air intake duct section communicates with the first cavity; the first support is also provided with a first opening and a second opening, both of which communicate with the first cavity; the air outlet end of the first duct section communicates with the first opening, and the air outlet end of the second duct section communicates with the second opening.

[0012] Furthermore, the first bracket is also provided with a mounting groove, and the first opening is formed on the bottom wall of the mounting groove; at least part of the control component is located in the mounting groove; the groove cavity of the mounting groove forms a first air duct section.

[0013] Furthermore, the chainsaw also includes a second support, on which a second cavity and a fourth opening communicating with the second cavity are provided. The fourth opening is located at the air inlet end of the second air duct section and on one side of the power supply unit, so that the hot air emitted by the power supply unit enters the second cavity through the fourth opening; the second air duct section includes the second cavity.

[0014] Furthermore, the power supply unit is connected to the second bracket, and the fourth opening is positioned facing the heat dissipation vent of the power supply unit.

[0015] Furthermore, the chainsaw also includes a first air duct component, which has a first preset channel, and the second end of the first preset channel forms the air outlet of the second air duct section; the second bracket is also provided with a third opening communicating with the second cavity, and the first end of the first preset channel is connected to the third opening; the second air duct section also includes the first preset channel.

[0016] Furthermore, the chainsaw also includes a third support, on which a third cavity and a fifth opening communicating with the third cavity are provided; the air outlet of the intake duct section is communicating with the fifth opening, and the fifth opening is the air inlet of the third duct section; the third duct section includes the third cavity.

[0017] Furthermore, the third cavity includes a third channel segment and a fourth channel segment that are connected to each other, and the third channel segment and the fourth channel segment are arranged at an angle; the end of the third channel segment that is away from the fourth channel segment is the fifth opening.

[0018] Furthermore, the fourth channel segment has a preset opening on its side, and the chainsaw includes a first housing portion that covers the preset opening.

[0019] Furthermore, the chainsaw also includes a second air duct component, which is provided with a second preset channel. The third air duct section includes the second preset channel, and the second end of the second preset channel forms the air outlet of the third air duct section.

[0020] Furthermore, the third support is provided with a sixth opening that communicates with the third cavity, and the first end of the second preset channel communicates with the sixth opening.

[0021] Furthermore, the port of the fourth channel segment furthest from the third channel segment is the sixth opening.

[0022] Furthermore, the air outlet of the air duct system is equipped with a dust filter.

[0023] Furthermore, the chainsaw also includes a support section on which the chain is mounted; the support section is provided with guide ribs so that, under the guidance of the guide ribs, impurities blown off the chain are blown out to the outside of the chainsaw.

[0024] This utility model has the following beneficial effects:

[0025] The chainsaw includes an air duct system. The intake end of the air duct system is located on one side of the chainsaw's control components and the other side of the chainsaw's power supply to absorb the heat emitted by the control components and power supply. The exhaust end of the air duct system is positioned towards the chainsaw chain to blow air onto the chain, thereby blowing away sawdust and other cutting debris accumulated on the chain. The exhaust end of the air duct system is connected to the atmospheric environment so that the airflow blowing towards the chain flows into the atmosphere after passing over the chain. This system achieves both heat dissipation for the control components and power supply and the use of the dissipated hot airflow to blow away sawdust and other cutting debris accumulated on the chain, preventing debris from clogging the sprockets. Attached Figure Description

[0026] 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the chainsaw according to the present invention is shown from one perspective.

[0028] Figure 2 A schematic diagram of the chainsaw according to this invention is shown from another perspective.

[0029] Figure 3 It shows Figure 1 A schematic diagram of the structure after the chainsaw removes the second shell part;

[0030] Figure 4 A schematic diagram of the cooperative structure of the control component, power supply, first bracket, second bracket, first air duct component, and third bracket of the chainsaw according to the present invention is shown.

[0031] Figure 5 A schematic diagram of the mating structure of the first support and control components of the chainsaw according to the present invention is shown;

[0032] Figure 6 A structural schematic diagram of the first support of the chainsaw according to the present invention is shown from one perspective.

[0033] Figure 7 A structural schematic diagram of the first support of the chainsaw according to the present invention is shown from another perspective.

[0034] Figure 8 A schematic diagram of the structure of the chainsaw according to the present invention, in which the fan section is arranged in the air intake duct section, is shown.

[0035] Figure 9 A schematic diagram of the cooperative structure of the first support and the first air duct component of the chainsaw according to the present invention is shown;

[0036] Figure 10 A cross-sectional view of the mating structure of the first support and the first air duct component of the chainsaw according to the present invention is shown.

[0037] Figure 11 A schematic diagram of the cooperation structure between the power supply unit and the second support of the chainsaw according to the present invention is shown.

[0038] Figure 12 A schematic diagram of the cooperation structure between the second support and the first air duct component of the chainsaw according to the present invention is shown;

[0039] Figure 13 A cross-sectional view of the mating structure of the second support and the first air duct component of the chainsaw according to the present invention is shown.

[0040] Figure 14 A schematic diagram of the power supply unit of the chainsaw according to the present invention is shown;

[0041] Figure 15 A schematic diagram of the motor of the chainsaw according to the present invention is shown;

[0042] Figure 16 A schematic diagram of the structure of the third support of the chainsaw according to the present invention is shown;

[0043] Figure 17 A cross-sectional view of the third support of the chainsaw according to the present invention is shown;

[0044] Figure 18 A structural schematic diagram of the second air duct component of the chainsaw according to the present invention is shown from one perspective.

[0045] Figure 19 A structural schematic diagram of the second air duct component of the chainsaw according to the present invention is shown from another perspective.

[0046] Figure 20 A schematic diagram of the assembly structure of the second air duct component, dust filter and chain of the chainsaw according to the present invention is shown.

[0047] Figure 21 A schematic diagram of the mating structure of the second air duct component and the chain of the chainsaw according to the present invention is shown (dust filter and guide ribs are not shown);

[0048] Figure 22 A structural schematic diagram of the chainsaw according to the present invention is shown from a third perspective.

[0049] The above figures include the following reference numerals:

[0050] 10. Intake air duct section; 101. Fan section; 102. Exhaust end;

[0051] 20. First bracket; 21. First cavity; 22. First opening; 23. Second opening; 24. Mounting slot;

[0052] 30. Second support; 31. Second cavity; 32. Third opening; 33. Fourth opening;

[0053] 40. First air duct component; 41. First preset channel; 42. First flange portion; 43. Second flange portion;

[0054] 50. Third support; 51. Third cavity; 511. Third channel segment; 512. Fourth channel segment; 5121. Pre-set opening; 52. Fifth opening; 53. Sixth opening;

[0055] 60. Second air duct component; 61. Second preset channel; 63. Second end; 64. First end;

[0056] 70. Dust filter;

[0057] 200. Control component; 300. Power supply unit; 310. Heat dissipation vent; 410. First housing; 420. Second housing; 430. Seventh opening; 500. Chain; 510. Sprocket; 520. Support unit; 5201. Guide rib; 5202. Eighth opening; 530. Installation space; 600. Drive component. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0059] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0060] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0061] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0062] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0063] In the description of the embodiments of this utility model, it should also be noted that the terms "first" and "second" used herein do not specifically refer to any order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0064] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0065] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0066] This utility model provides a chainsaw; please refer to [reference needed]. Figures 1 to 22 The chainsaw includes an air duct system. The air intake of the air duct system is located on one side of the control unit 200 and on the other side of the power supply unit 300 of the chainsaw to absorb the heat emitted by the control unit 200 and the power supply unit 300. The air outlet of the air duct system is set towards the chain 500 of the chainsaw to blow air onto the chain 500, thereby blowing away sawdust and other cutting impurities accumulated on the chain 500. The air outlet of the air duct system is connected to the atmospheric environment so that the airflow blowing towards the chain 500 flows into the atmospheric environment after passing over the chain 500.

[0067] The chainsaw of this application can not only dissipate heat from the control unit 200 and the power supply unit 300, but also use the hot airflow to blow away sawdust and other cutting impurities accumulated on the chain 500, preventing impurities from clogging the sprocket 510; this improves the overall heat dissipation efficiency and safety of the chainsaw.

[0068] The air intake of the duct system is located directly near the control unit 200 and power supply unit 300 of the chainsaw, which can quickly capture and guide the heat generated by these two critical components. Since the control unit 200 and power supply unit 300 are usually the components most prone to overheating in a chainsaw, this design ensures that heat can be dissipated in a timely and effective manner, thereby avoiding performance degradation or damage caused by overheating.

[0069] The design of the air outlet facing the chain 500 not only helps cool the sprocket 510 and the chain, but more importantly, it uses high-speed airflow to remove sawdust or other debris accumulated on the sprocket 510 and chain during cutting. This effectively reduces the possibility of clogging the cutting material, improves the chainsaw's ability to work continuously and reliably, and reduces the frequency of maintenance and cleaning for the user.

[0070] By employing active heat dissipation and chip removal, the risk of overheating and jamming of the chainsaw during high-load operation is significantly reduced, thereby improving user safety. Especially during prolonged or high-intensity cutting operations, stable operating temperature and smooth chain movement are crucial for preventing accidents.

[0071] Effective heat dissipation of the control unit 200, power supply unit 300, and chain 500 not only protects these components from high-temperature damage in a timely manner but also helps extend the service life of the entire chainsaw. Good heat dissipation and smooth chip removal are key factors for the long-term stable operation of the equipment.

[0072] The chainsaw described in this application not only improves the chainsaw's working efficiency and safety, but also optimizes the overall user experience by reducing user intervention in heat dissipation and chip removal. Users do not need to frequently stop work to clean the sprocket 510 and chain, nor do they need to worry about waiting for the equipment to cool down due to overheating, thereby improving work efficiency and operational continuity.

[0073] Optionally, the control unit 200 includes a main control board; the power supply unit 300 includes a battery pack.

[0074] Optionally, the chain 500 is wound around the sprocket 510; the end of the chain 500 wound around the sprocket 510 is the first end of the chain 500; the chainsaw includes a second housing 420, which covers the first end of the chain 500 and the outside of the sprocket 510; this causes sawdust or other cutting materials to easily accumulate at the first end of the chain 500 during actual cutting. This application positions the air outlet of the air duct system towards the first end of the chain 500 and the sprocket 510 to blow air towards the first end of the chain 500 and the sprocket 510, thereby blowing away sawdust and other cutting impurities accumulated at the first end of the chain 500.

[0075] In this application, the chainsaw also includes a support portion 520, a sprocket 510 mounted on the support portion 520, i.e., a chain 500 assembled on the support portion 520; a second housing portion 420 disposed on the outside of the support portion 520, the second housing portion 420 and the support portion 520 forming an installation space 530, at least a portion of the sprocket 510 located within the installation space 530, and the first end of the chain 500 located within the installation space 530; the air outlet of the air duct system communicates with the installation space 530, and a pre-set opening communicating with the installation space 530 is also formed between the second housing portion 420 and the support portion 520, so that the air outlet of the air duct system communicates with the atmospheric environment through the installation space 530 and the pre-set opening.

[0076] Optionally, the air outlet of the duct system is located within the installation space 530 so that the air outlet of the duct system is connected to the installation space 530.

[0077] In this application, the air duct system includes an intake air duct section 10.

[0078] The air intake end of the air intake duct section 10 forms the air intake end of the air duct system; or, the air intake end of the air intake duct section 10 is connected to the air intake end of the air duct system.

[0079] The air outlet of the intake air duct section 10 forms the air outlet of the air duct system; or, the air outlet of the intake air duct section 10 is connected to the air outlet of the air duct system.

[0080] In this application, the air duct system further includes a first air duct section and a second air duct section; the intake end of the intake air duct section 10 is connected to the outlet end of the first air duct section; the inlet end of the first air duct section is located on one side of the control component 200, and the inlet end of the first air duct section is arranged facing the control component 200 so that the hot air emitted by the control component 200 enters the intake air duct section 10 through the first air duct section.

[0081] The intake end of the intake air duct section 10 is connected to the outlet end of the second air duct section; the inlet end of the second air duct section is located on one side of the power supply unit 300, and the inlet end of the second air duct section is positioned facing the power supply unit 300 so that the hot air emitted by the power supply unit 300 enters the intake air duct section 10 through the second air duct section. The intake end of the air duct system includes the inlet end of the first air duct section and the inlet end of the second air duct section.

[0082] In this application, the air duct system also includes a third air duct section, the air outlet of the intake air duct section 10 is connected to the air inlet of the third air duct section, and the air outlet of the third air duct section is the air outlet of the air duct system.

[0083] In this application, the chainsaw also includes a fan section 101 disposed in the air intake section 10, so as to draw in the hot air emitted by the control unit 200 and the power supply unit 300 when the fan section 101 rotates.

[0084] The rotation of the fan 101 enhances the ability to absorb heat from the control unit 200 and the power supply unit 300. Compared to cooling methods that rely on natural convection, active fan cooling can remove heat from these critical components more quickly and effectively. This improvement is crucial for enhancing the heat dissipation efficiency of the chainsaw under high load or long-term operation conditions.

[0085] The use of fan 101 promotes the directional flow of hot air inside the chainsaw, ensuring that heat can be accurately guided to the heat dissipation duct, avoiding disorderly diffusion of heat inside the chainsaw, thereby reducing the risk of accidental overheating of other non-target components.

[0086] When the chainsaw is used under high intensity, the fan unit 101 can respond quickly and immediately increase its speed to cope with the sudden increase in heat output and prevent the equipment from overheating. This immediate response capability provides solid technical support for ensuring the stable operation of the chainsaw under complex working conditions.

[0087] By enhancing heat dissipation, the fan unit 101 helps keep the control unit 200 and the power supply unit 300 within a safe operating temperature range, thereby significantly extending the service life of these critical components, reducing equipment maintenance costs, and improving the overall reliability of the equipment.

[0088] An efficient heat dissipation mechanism ensures that the chainsaw can maintain a stable working state even in hot working environments, reducing the cooling time required due to overheating, thereby improving the user's operating experience and work efficiency.

[0089] The design of the high-speed fan section 101 optimizes thermal management, reduces energy loss caused by equipment overheating, and also reduces resource consumption for replacing parts due to equipment damage, reflecting the design concept of energy conservation and environmental protection.

[0090] Specifically, the axial direction of the fan section 101 is parallel to or the same as the axial direction of the intake duct section 10.

[0091] Specifically, the chainsaw includes a drive unit 600, which includes a fan unit 101. The rotating part of the drive unit 600 is connected to the fan unit 101 to drive the fan unit 101 to rotate.

[0092] Optionally, the drive element 600 is an electric motor. For example, the drive element 600 is a turbocharged electric motor.

[0093] In this application, the chainsaw also includes a first support 20, on which a first cavity 21 and an air intake section 10 are provided; at least a portion of the air intake section 10 is located within the first cavity 21, so that the air intake end of the air intake section 10 is connected to the first cavity 21.

[0094] The first support 20 is also provided with a first opening 22 and a second opening 23, both of which are connected to the first cavity 21; the air outlet of the first air duct section is connected to the first opening 22, and the air outlet of the second air duct section is connected to the second opening 23.

[0095] like Figure 7 As shown, the air outlet 102 is the air outlet of the intake air duct section 10.

[0096] In this application, the first bracket 20 is also provided with a mounting groove 24, and the first opening 22 is formed on the bottom wall of the mounting groove 24; at least a portion of the control component 200 is located in the mounting groove 24; the groove cavity of the mounting groove 24 forms a first air duct section.

[0097] In this application, the chainsaw also includes a second support 30, on which a second cavity 31 is provided and a fourth opening 33 communicating with the second cavity 31. The fourth opening 33 is located at the air inlet end of the second air duct section and is located on one side of the power supply unit 300. The fourth opening 33 is positioned facing the power supply unit 300 so that the hot air emitted by the power supply unit 300 enters the second cavity 31 through the fourth opening 33. The second air duct section includes the second cavity 31.

[0098] Specifically, the power supply unit 300 is connected to the second bracket 30, and the fourth opening 33 is positioned facing the heat dissipation port 310 of the power supply unit 300.

[0099] Specifically, the chainsaw also includes a first air duct component 40, on which a first preset channel 41 is provided, and the second end of the first preset channel 41 forms the air outlet of the second air duct section; the second bracket 30 is also provided with a third opening 32 communicating with the second cavity 31, and the first end of the first preset channel 41 is communicating with the third opening 32; the second air duct section also includes the first preset channel 41.

[0100] Optionally, the first air duct component 40 is a tubular structure.

[0101] Optionally, the first preset channel 41 includes a first channel segment and a second channel segment connected to each other, with the first channel segment and the second channel segment arranged at an angle; the end of the first channel segment away from the second channel segment is the first end of the first preset channel 41, and the end of the second channel segment away from the first channel segment is the second end of the first preset channel 41.

[0102] Optionally, the first channel segment and the second channel segment are set at an obtuse angle.

[0103] Optionally, the first end of the first air duct component 40 is provided with a first flange portion 42, the first end of the first air duct component 40 passes through the third opening 32, and the first flange portion 42 is located in the second cavity 31 and abuts against the cavity wall of the second cavity 31.

[0104] Optionally, the second end of the first air duct component 40 is provided with a second flange portion 43, and the second end of the first air duct component 40 passes through the second opening 23 so that the air outlet end of the second air duct section communicates with the first cavity 21; the second flange portion 43 is located outside the second opening 23 and abuts against the first bracket 20.

[0105] Optionally, the second end of the first air duct component 40 and the first bracket 20 are connected and fixed by passing a locking member through the second flange 43 and the first bracket 20.

[0106] Optionally, at least a portion of the first flange portion 42 is made of a flexible material so that it can deform when subjected to compressive force; therefore, during the specific installation process, the first flange portion 42 is squeezed to insert the first flange portion 42 into the second cavity 31 through the third opening 32.

[0107] In this application, the chainsaw also includes a third support 50, on which a third cavity 51 is provided and a fifth opening 52 communicating with the third cavity 51; the air outlet of the intake duct section 10 is communicating with the fifth opening 52, and the fifth opening 52 is the air inlet of the third duct section; the third duct section includes the third cavity 51.

[0108] Optionally, the air outlet of the intake section 10 is connected to the fifth opening 52.

[0109] Specifically, the third cavity 51 includes a third channel segment 511 and a fourth channel segment 512 that are connected to each other, and the third channel segment 511 and the fourth channel segment 512 are arranged at an angle; the end of the third channel segment 511 that is away from the fourth channel segment 512 is the fifth opening 52.

[0110] Optionally, the third channel segment 511 and the fourth channel segment 512 are perpendicular to each other.

[0111] Optionally, the axial direction of the third channel section 511 is parallel to or the same as the axial direction of the intake duct section 10.

[0112] Specifically, the fourth channel segment 512 has a preset opening 5121 on its side, and the chainsaw includes a first housing 410, which covers the preset opening 5121.

[0113] Specifically, the first shell portion 410 contacts the outer side of the preset opening 5121 to block the preset opening 5121, thereby ensuring the sealing of the fourth channel segment 512.

[0114] In this application, the chainsaw also includes a second air duct component 60, on which a second preset channel 61 is provided, and a third air duct section includes the second preset channel 61, with the second end of the second preset channel 61 forming the air outlet of the third air duct section.

[0115] Specifically, the third support 50 is provided with a sixth opening 53 that communicates with the third cavity 51, and the first end of the second preset channel 61 communicates with the sixth opening 53.

[0116] Specifically, the port of the fourth channel segment 512 that is furthest from the third channel segment 511 is the sixth opening 53.

[0117] Specifically, at least a portion of the second air duct 60 is located within the installation space 530, such that the second end of the second preset channel 61 is located within the installation space 530.

[0118] Specifically, the second air duct component 60 is installed on the support 520.

[0119] like Figure 18 and 19 As shown, the first end 64 is the first end of the second preset channel 61, and the second end 63 is the second end of the second preset channel 61.

[0120] Optionally, the second air duct component 60 is made of soft rubber.

[0121] In this application, the support part 520 is provided with a guide rib 5201, so that the impurities blown off from the chain 500 are blown out to the outside of the chainsaw under the guidance of the guide rib 5201.

[0122] Specifically, one end of the guide rib 5201 extends toward the edge of the support portion 520 so that impurities blown off from the chain 500 are guided to the edge of the support portion 520 and then blown out from the edge of the support portion 520 to the outside of the chainsaw.

[0123] Specifically, during the use of the chainsaw, the central axis of the sprocket 510 is parallel to the horizontal direction; at this time, the bottom end of the guide rib 5201 extends toward the bottom edge of the support portion 520 so that, under the action of gravity, the impurities blown off from the chain 500 are guided to the bottom edge of the support portion 520 and then blown out from the bottom edge of the support portion 520 to the outside of the chainsaw.

[0124] Specifically, an eighth opening 5202 is formed between the edge of the second shell portion 420 and the edge of the support portion 520. The eighth opening 5202 communicates with the mounting space 530 so that impurities blown off from the chain 500 are guided to the edge of the support portion 520 and then blown out from the eighth opening 5202 to the outside of the chainsaw.

[0125] Specifically, during the use of the chainsaw, the eighth opening 5202 is the bottom opening.

[0126] Specifically, the preset opening includes an eighth opening 5202.

[0127] Optionally, the chain 500 has a second end disposed opposite to its first end; the second housing 420 has a first end and a second end disposed opposite to each other, and the direction from the first end to the second end of the chain 500 is the same as the direction from the first end to the second end of the second housing 420; the second end of the chain 500 extends out from the second end of the second housing 420; a seventh opening 430 is formed between the edge of the second end of the second housing 420 and the edge of the support 520, and the seventh opening 430 communicates with the mounting space 530; the preset opening includes the seventh opening 430.

[0128] In practical use, airflow can also enter from the seventh opening 430 to guide the impurities guided by the guide rib 5201 to the bottom edge of the support 520, and then blow them out from the bottom edge of the support 520 to the outside of the chainsaw.

[0129] Optionally, there may be multiple seventh openings 430.

[0130] In this application, a dust filter 70 is provided at the air outlet of the air duct system, and the dust filter 70 is detachably installed.

[0131] The dust filter 70 effectively blocks large particles such as dust and wood chips from entering the air duct system. If these particles are not intercepted, they may enter the motor compartment and air duct system, causing system blockage or wear on mechanical parts, affecting the normal operation and heat dissipation efficiency of the chainsaw.

[0132] By installing a dust filter 70, the chainsaw's heat dissipation system can avoid performance degradation due to the accumulation of external impurities, ensuring the long-term stable operation of the high-speed motor and air duct system, and extending the service life of the entire heat dissipation system.

[0133] The use of the dust filter 70 reduces the need for internal cleaning of the chainsaw. Users do not need to frequently disassemble and clean the inside of the chainsaw, especially the motor and air duct. This not only saves maintenance time but also reduces maintenance costs, improving the economy of the equipment and user satisfaction.

[0134] With the installation of the dust filter 70, potential safety hazards caused by external impurities, such as motor short circuits and heat dissipation system failures, are reduced, thereby improving the safety of chainsaw operation and reducing the risk of accidents during operation.

[0135] The 70mm dust filter simplifies routine equipment maintenance, allowing users to focus more on their work without worrying about chainsaw malfunctions or performance degradation caused by external environmental factors. This ensures the chainsaw maintains high efficiency and reliability in various working environments, enhancing user confidence and satisfaction.

[0136] The dust filter 70 reduces the emission of dust and particulate matter that may be generated during operation. For chainsaws used in enclosed or poorly ventilated environments, it can reduce pollution to the working environment and demonstrate its contribution to environmental protection.

[0137] Specifically, the dust filter 70 is located at the second end of the second preset channel 61.

[0138] Specifically, the dust filter 70 is located within the installation space 530.

[0139] In practical use, when cutting a large load, and when wood chips or other cutting impurities accumulate on the chain 500, the load on the chain 500 will increase. At this time, the drive component 600 will increase its speed to blow away the impurities at high speed and at the same time accelerate heat dissipation, so as to achieve the purpose of automatically adjusting the speed to blow away chips and dissipate heat. Conversely, when cutting a small load, the speed of the drive component 600 can be reduced and it will operate at a low speed.

[0140] If the temperature of the control unit 200 and the power supply unit 300 reaches the temperature risk threshold during the intermediate shutdown period of the chainsaw, the drive unit 600 will continue to rotate and replenish air to cool down until the temperature reaches the safety threshold and then automatically shut down.

[0141] This utility model has at least the following beneficial effects:

[0142] The chainsaw provided by this utility model includes an air duct system. The air intake end of the air duct system is located on one side of the control component 200 and the power supply unit 300 of the chainsaw to absorb the heat emitted by the control component 200 and the power supply unit 300. The air outlet end of the air duct system is positioned towards the chain 500 of the chainsaw to blow air onto the chain 500, thereby blowing away sawdust and other cutting impurities accumulated on the chain 500. The air outlet end of the air duct system is connected to the atmospheric environment so that the airflow blowing towards the chain 500 flows into the atmospheric environment after passing over the chain 500. This not only achieves heat dissipation for the control component 200 and the power supply unit 300, but also uses the dissipated hot airflow to blow away sawdust and other cutting impurities accumulated on the chain 500, preventing impurities from clogging the sprocket 510.

[0143] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0144] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A chainsaw, characterized in that, The system includes an air duct system, wherein the air intake end of the air duct system is located on one side of the control component (200) and the power supply unit (300) of the chainsaw, so as to absorb the heat emitted by the control component (200) and the power supply unit (300); the air outlet end of the air duct system is arranged towards the chain (500) of the chainsaw and is connected to the atmospheric environment so as to blow air onto the chain (500) and then let it flow into the atmospheric environment.

2. The chainsaw according to claim 1, characterized in that, The air duct system includes: Intake air duct section (10); The first air duct section, the air intake end of the air intake section (10) is connected to the air outlet end of the first air duct section, and the air inlet end of the first air duct section is located on one side of the control component (200) so that the hot air emitted by the control component (200) enters the air intake section (10) through the first air duct section. The second air duct section, the air intake end of the air intake section (10) is connected to the air outlet end of the second air duct section, and the air inlet end of the second air duct section is located on one side of the power supply unit (300) so that the hot air emitted by the power supply unit (300) enters the air intake section (10) through the second air duct section. The air intake end of the air duct system includes the air inlet end of the first air duct section and the air inlet end of the second air duct section. The air outlet of the intake air duct section (10) forms the air outlet of the air duct system; or, the air outlet of the intake air duct section (10) is connected to the air outlet of the air duct system.

3. The chainsaw according to claim 1, characterized in that, The air duct system includes: Intake air duct section (10); The third air duct section, the air outlet of the intake air duct section (10) is connected to the air inlet of the third air duct section, and the air outlet of the third air duct section is the air outlet of the air duct system. The air intake end of the air intake duct section (10) forms the air intake end of the air duct system; or, the air intake end of the air intake duct section (10) is connected to the air intake end of the air duct system.

4. The chainsaw according to claim 2 or 3, characterized in that, The chainsaw also includes a fan section (101) disposed within the air intake section (10) to draw in hot air emitted by the control unit (200) and the power supply unit (300) when the fan section (101) rotates.

5. The chainsaw according to claim 2, characterized in that, The chainsaw also includes a first support (20), on which a first cavity (21) and the suction duct section (10) are provided; at least a portion of the suction duct section (10) is located in the first cavity (21) so that the suction end of the suction duct section (10) is connected to the first cavity (21). The first support (20) is also provided with a first opening (22) and a second opening (23), both of which are connected to the first cavity (21); the air outlet of the first air duct section is connected to the first opening (22), and the air outlet of the second air duct section is connected to the second opening (23).

6. The chainsaw according to claim 5, characterized in that, The first bracket (20) is also provided with a mounting groove (24), and the first opening (22) is opened on the bottom wall of the mounting groove (24); at least a portion of the control component (200) is located in the mounting groove (24); the cavity of the mounting groove (24) forms the first air duct section.

7. The chainsaw according to claim 2, characterized in that, The chainsaw also includes a second support (30), on which a second cavity (31) and a fourth opening (33) communicating with the second cavity (31) are provided. The fourth opening (33) is provided at the air inlet end of the second air duct section and is located on one side of the power supply unit (300) so that the hot air emitted by the power supply unit (300) enters the second cavity (31) through the fourth opening (33); the second air duct section includes the second cavity (31).

8. The chainsaw according to claim 7, characterized in that, The power supply unit (300) is connected to the second bracket (30), and the fourth opening (33) is provided facing the heat dissipation port (310) of the power supply unit (300); and / or The chainsaw also includes a first air duct component (40), on which a first preset channel (41) is provided, and the second end of the first preset channel (41) forms the air outlet of the second air duct section; the second bracket (30) is also provided with a third opening (32) communicating with the second cavity (31), and the first end of the first preset channel (41) is communicating with the third opening (32); the second air duct section also includes the first preset channel (41).

9. The chainsaw according to claim 3, characterized in that, The chainsaw also includes a third support (50), on which a third cavity (51) and a fifth opening (52) communicating with the third cavity (51) are provided; the air outlet of the air intake section (10) is communicating with the fifth opening (52), and the fifth opening (52) is the air inlet of the third air intake section; the third air intake section includes the third cavity (51).

10. The chainsaw according to claim 9, characterized in that, The third cavity (51) includes a third channel segment (511) and a fourth channel segment (512) connected to each other, the third channel segment (511) and the fourth channel segment (512) being arranged at an angle; the end of the third channel segment (511) away from the fourth channel segment (512) is the fifth opening (52).

11. The chainsaw according to claim 10, characterized in that, The fourth channel segment (512) has a preset opening (5121) on its side. The chainsaw includes a first shell (410) which covers the preset opening (5121).

12. The chainsaw according to claim 3, characterized in that, The chainsaw also includes a second air duct component (60), on which a second preset channel (61) is provided. The third air duct section includes the second preset channel (61), and the second end of the second preset channel (61) forms the air outlet of the third air duct section.

13. The chainsaw according to claim 9, characterized in that, The chainsaw also includes a second air duct component (60), on which a second preset channel (61) is provided. The third air duct section includes the second preset channel (61), and the second end of the second preset channel (61) forms the air outlet of the third air duct section. The third bracket (50) is provided with a sixth opening (53) communicating with the third cavity (51), and the first end of the second preset channel (61) is communicating with the sixth opening (53).

14. The chainsaw according to claim 13, characterized in that, The third cavity (51) includes a third channel segment (511) and a fourth channel segment (512) connected to each other, the third channel segment (511) and the fourth channel segment (512) being arranged at an angle; the port of the third channel segment (511) away from the fourth channel segment (512) is the fifth opening (52), and the port of the fourth channel segment (512) away from the third channel segment (511) is the sixth opening (53).

15. The chainsaw according to claim 1, characterized in that, The air outlet of the air duct system is equipped with a dust filter (70).

16. The chainsaw according to claim 1, characterized in that, The chainsaw also includes a support part (520), on which the chain (500) is mounted; the support part (520) is provided with a guide rib (5201) so that, under the guidance of the guide rib (5201), the impurities blown off the chain (500) are blown out to the outside of the chainsaw.

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