Chain saw heat dissipation structure and chain saw

Abstract

The utility model provides a chain saw heat dissipation structure and a chain saw, the chain saw heat dissipation structure is arranged in a shell of the chain saw, the chain saw heat dissipation structure comprises an air guide assembly, the air guide assembly comprises an air guide channel, an air guide inlet and an air guide outlet, the air guide inlet and the air guide outlet are communicated with the air guide channel, the air guide inlet is arranged towards a battery pack, and the air guide outlet is arranged towards a control part; the heat dissipation motor is arranged on the air guide assembly, and the heat dissipation motor comprises a rotating shaft and first heat dissipation blades arranged on the rotating shaft, so that airflow is sucked into the air guide channel from the air guide inlet through the heat dissipation motor, and the airflow is pushed to the control part through the air guide outlet; according to the heat dissipation structure of the chain saw, the problem that in the prior art, the heat dissipation effect of a heat dissipation structure of the chain saw is poor is solved, so that the damage risk caused by overheating of the chain saw is reduced, the chain saw can still keep a good working state under the long-time and high-strength working condition, the heat dissipation performance of the chain saw is improved, and the service life of the chain saw is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to chain saw technical field, specifically, chain saw heat dissipation structure and chain saw of chain saw. BACKGROUND

[0002] In the chain saw design of prior art, how to solve the problem of heat dissipation has been a key challenge, especially in the case of long time continuous use or high load work. When cutting operation, the high power output of battery pack, main control panel and high speed operation of driving motor of chain saw will generate a large amount of heat. If these heat cannot be discharged in time and effectively, the heat will accumulate in the internal equipment, resulting in continuous temperature rise, and thus causing risks such as thermal runaway of battery pack, circuit failure of main control panel, and efficiency decline and demagnetization of driving motor, thereby affecting the performance, safety and service life of chain saw.

[0003] At present, most of the chain saws on the market adopt passive heat dissipation mode, that is, relying on natural cooling or simple cooling fins on the surface of the equipment to reduce heat. However, this method often has limited effect under high power load, especially in closed or narrow working environment, air circulation is not smooth, and the heat dissipation effect is worse.

[0004] Therefore, the heat dissipation structure of the existing chain saw still has great room for improvement in actual application, especially in how to improve the heat dissipation efficiency, reduce the heat dissipation cost and simplify the heat dissipation structure, etc., in order to solve the problems of low heat dissipation efficiency, unreasonable heat dissipation air duct design and single heat dissipation mode. UTILITY MODEL CONTENTS

[0005] Therefore, the purpose of the utility model is to provide a chain saw heat dissipation structure and chain saw which can effectively dissipate heat for each component in the chain saw during work, solving the problem of poor heat dissipation effect of the heat dissipation structure of the chain saw in the prior art.

[0006] In order to achieve the above purpose, the technical scheme provided by an embodiment of the utility model is as follows:

[0007] A chain saw heat dissipation structure, the chain saw heat dissipation structure is arranged in the shell of the chain saw, and the chain saw heat dissipation structure comprises: an air guide assembly, the air guide assembly comprises an air guide channel and an air guide inlet and an air guide outlet communicated with the air guide channel, the air guide inlet is arranged towards the battery pack, and the air guide outlet is arranged towards the control component; a heat dissipation motor, the heat dissipation motor is arranged on the air guide assembly, the heat dissipation motor comprises a rotating shaft and a first heat dissipation blade arranged on the rotating shaft, so that the airflow is sucked into the air guide channel from the air guide inlet by the heat dissipation motor, and the airflow is pushed to the control component by the air guide outlet.

[0008] Further, the air guide assembly comprises a first air guide cover, a first end of the first air guide cover is arranged towards the battery pack; a second air guide cover, a third end of the second air guide cover is connected with a second end of the first air guide cover, and a fourth end of the second air guide cover is an air guide outlet arranged towards the control component. The air guide assembly of the utility model optimizes the air flow path through the combination of the first air guide cover and the second air guide cover, forms at least part of the air guide channel, ensures that the air flow can flow smoothly from the battery pack to the control component, reduces the energy loss of the air flow in the transmission process, realizes effective heat transfer and dissipation in the case of limited space in the chain saw, improves the heat dissipation efficiency, and reduces the risk of overheating of the equipment. When the air guide assembly is applied to the chain saw which needs high-efficiency heat dissipation, such as the chain saw which needs to work continuously for a long time, the heat load of the chain saw can be effectively reduced, and the working efficiency is improved.

[0009] Further, the first air guide cover comprises a first cover body and an air inlet section arranged on one side of the first cover body close to the battery pack, and at least part of the heat dissipation motor is located in the first cover body. The first air guide cover of the utility model can accommodate at least part of the heat dissipation motor through the combination of the first cover body and the air inlet section, protect the heat dissipation motor, form a structure which can effectively absorb and guide the air flow from the battery pack, ensure that the air flow can be fully absorbed by the heat dissipation motor, improve the air flow collection efficiency, reduce the working load of the heat dissipation motor, make the work of the heat dissipation motor more efficient, effectively prevent the battery pack from overheating, prolong the service life of the battery pack, and improve the overall heat dissipation performance of the chain saw.

[0010] Further, the hole section of the air inlet hole of the air inlet section is circular or elliptical or polygonal. In this way, by setting the shape of the hole section of the air inlet hole, the suction angle and speed of the air flow can be adjusted, the air flow suction is more smooth, the heat dissipation efficiency is improved, and the chain saw heat dissipation structure is applicable to different models of chain saws, improves the versatility of the chain saw heat dissipation structure, and enhances the market adaptability of the chain saw.

[0011] Further, the hole section of the air inlet hole of the air inlet section remains unchanged in the direction away from the first cover body. The utility model can ensure the stability and uniformity of the air flow when entering the air guide channel by keeping the consistency of the hole section shape of the air inlet hole of the air inlet section, avoid the turbulence and energy loss of the air flow, improve the transmission efficiency of the air flow, and make the heat dissipation effect more stable. It is applicable to chain saws which need stable heat dissipation effect, such as chain saws used in high-altitude or high-humidity environments, and can ensure the consistency of the heat dissipation effect of the chain saw under various environmental conditions.

[0012] Further, the hole section of the air inlet hole of the air inlet section gradually increases in the direction away from the first cover body. In this way, by adjusting the flow area of the air inlet section, the entering speed and flow of the air flow can be optimized, the air intake amount of the air flow is increased, and the resistance when the air flow enters is reduced, so that the air flow can be absorbed by the heat dissipation motor at the best speed and flow when entering the air guide channel, the temperature of the battery pack can be effectively reduced, the heat dissipation effect of the battery pack is more obvious, the working load of the heat dissipation motor is reduced, the overall heat dissipation performance of the chain saw is improved, and the chain saw is suitable for chain saws that need high-efficiency heat dissipation, such as chain saws used for a long time in high-temperature environments, the stability and service life of the chain saw are improved, and the best heat dissipation effect is achieved.

[0013] Further, the first cover body comprises a first mounting hole for mounting at least part of the heat dissipation motor, and the first mounting hole comprises a cylindrical through hole. The first cover body of the utility model can ensure stable installation and efficient work of at least part of the heat dissipation motor by arranging the first mounting hole, and the arrangement of the cylindrical through hole is beneficial to the smooth passage of the air flow, so that the working efficiency of the heat dissipation motor is improved, the stable operation of the heat dissipation motor is ensured, the heat dissipation effect is more obvious, and the chain saw is suitable for chain saws that need stable heat dissipation effect, such as chain saws used under high intensity, and the heat dissipation performance of the chain saw is improved.

[0014] Further, the first cover body and the air inlet section are integrally formed. The first air guide cover of the utility model can reduce the production and disassembly steps of the air guide assembly, reduce the manufacturing cost and disassembly cost of the air guide assembly, improve the structural strength and air tightness of the air guide assembly, improve the heat dissipation efficiency of the air guide assembly, and is suitable for chain saws that need low-cost and high-efficiency manufacturing, can effectively reduce the production cost of the chain saw, and improve the production efficiency of the chain saw.

[0015] Further, the second air guide cover comprises a second cover body and an air outlet section arranged on one side of the second cover body close to the control component, and at least part of the heat dissipation motor is located in the second cover body. The second air guide cover of the utility model can accommodate at least part of the heat dissipation motor through the combination of the second cover body and the air outlet section, protect the heat dissipation motor, form a structure that can effectively guide the air flow to blow to the control component, be beneficial to forming a stable heat dissipation air flow, ensure that the control component can be fully cooled, improve the heat dissipation efficiency of the air flow to the control component, prolong the service life of the control component, reduce the working load of the heat dissipation motor, and improve the overall heat dissipation performance of the chain saw. It is suitable for chain saws whose control components are prone to overheating, such as chain saws with high power output, thereby prolonging the service life of the chain saw.

[0016] Further, the hole section of the air outlet hole of the air outlet section is circular or elliptical or polygonal. In this way, by setting the hole section shape of the air outlet hole of the air outlet section, the blowing angle and speed of the air flow can be adjusted, so that the air flow is blown more smoothly, thereby optimizing the heat dissipation effect and improving the heat dissipation efficiency, and at the same time, it can adapt to control components of different shapes, improve the versatility of the chain saw heat dissipation structure, and be suitable for different models of chain saws, can flexibly match various chain saws, and enhance the market adaptability of the chain saw.

[0017] Further, the area of the hole section of the air outlet hole of the air outlet section gradually increases in the direction away from the second cover body. The utility model discloses a gradually increasing flow area of the air outlet section, which can optimize the distribution of the air flow and ensure that the air flow can uniformly cover the control component. When the air flow reaches the control component, heat dissipation can be realized in the best distribution state, thereby improving the heat dissipation efficiency.

[0018] Further, the second cover body comprises a second mounting hole for mounting at least part of the heat dissipation motor, and the second mounting hole comprises a cylindrical through hole. The utility model discloses a second mounting hole, which is beneficial to the smooth passage of the air flow and can ensure the stable installation of the heat dissipation motor, so that the working efficiency of the heat dissipation motor is improved, the heat dissipation effect is more remarkable, and is suitable for chain saws that require stable heat dissipation effect, such as chain saws under high-intensity use, and can improve the heat dissipation performance of the chain saw.

[0019] Further, the second cover body and the air outlet section are integrally formed. The utility model discloses an integrally formed second air guide cover, which can reduce the production and disassembly steps of the air guide assembly, reduce the manufacturing cost and disassembly cost of the air guide assembly, improve the structural strength and air tightness of the air guide assembly, improve the heat dissipation efficiency of the air guide assembly, and is suitable for chain saws that require low cost and high efficiency manufacturing, which can effectively reduce the production cost of the chain saw and improve the production efficiency of the chain saw.

[0020] Further, the heat dissipation motor is arranged in the air guide channel, and the air flow passing through the air guide inlet is sucked into the air guide channel by the heat dissipation motor and is pushed to the air guide outlet. The utility model discloses a heat dissipation motor arranged in the air guide channel, which can ensure the stable installation of the heat dissipation motor in the air guide channel, optimize the air duct layout, ensure the efficient circulation of the air flow, and improve the heat dissipation efficiency.

[0021] Further, the heat dissipation motor can also be arranged at the air guide inlet for guiding the air flow into the air guide channel. The utility model discloses a heat dissipation motor arranged at the air guide inlet, which forms a one-way air flow path, reduces the influence of heat backflow, and improves the heat dissipation efficiency.

[0022] Further, the heat dissipation motor can also be arranged at the air guide outlet for pushing the airflow in the air guide channel to the control component.

[0023] Further, the air guide assembly further comprises a connecting cylinder, a fifth end of the connecting cylinder is an air guide inlet arranged towards the battery pack, and a sixth end of the connecting cylinder is connected with the first end of the first air guide cover.

[0024] Further, the flow hole on the connecting cylinder for airflow passing through is a columnar through hole.

[0025] Further, the hole section of the flow hole is circular or elliptical or polygonal.

[0026] A chain saw comprises a housing, a chain saw body partially located in the housing, the chain saw body comprising a chain wheel, a chain saw driving motor located in the housing and drivingly connected with the chain wheel, a battery pack located outside the housing and connected with the housing, a control component located in the housing, the control component being arranged between the chain saw driving motor and the battery pack, a chain saw heat dissipation structure, the chain saw heat dissipation structure being the chain saw heat dissipation structure described above, the chain saw heat dissipation structure being arranged in the housing and located between the battery pack and the control component, and an end of the chain saw driving motor away from the chain saw body being provided with second heat dissipation blades for sucking air flow reaching the control component. In this way, the chain saw of the utility model further absorbs air flow from the control component through the second heat dissipation blades of the chain saw driving motor, effectively dissipates heat in the space near the chain saw driving motor, thereby improving heat dissipation efficiency, effectively controlling the temperature of the equipment when the chain saw is working at high intensity, avoiding damage caused by overheating, and being suitable for occasions where the chain saw works for a long time and the battery pack and the control component generate a lot of heat.

[0027] Further, the battery pack comprises a battery pack shell and a battery cell located in the battery pack shell, a plurality of ventilation holes are arranged on the battery pack shell in intervals, and the air inlet is arranged towards the ventilation holes. The chain saw of the utility model can not only effectively guide air flow into the battery pack to dissipate heat of the battery cell, improve heat dissipation efficiency of the battery pack, reduce the risk of overheating of the battery pack, prolong the service life of the battery pack, but also make the air flow entering the battery pack continue to flow to the control component through the chain saw heat dissipation structure, so as to dissipate heat inside the chain saw.

[0028] Further, the control component comprises a control shell and a control circuit board arranged in the control shell, a plurality of heat dissipation fins are arranged on the outer periphery of the control shell in intervals, and the air outlet is arranged towards the heat dissipation fins. The chain saw of the utility model can effectively guide the air flow blown from the heat dissipation motor into the heat dissipation gaps formed by the plurality of heat dissipation fins to dissipate heat of the control circuit board through the plurality of heat dissipation fins, improve heat dissipation efficiency of the control circuit board, reduce the risk of overheating of the control circuit board, and prolong the service life of the control circuit board.

[0029] Further, the chain saw driving motor is located on the side of the control component away from the chain saw heat dissipation structure. In this way, by arranging the position of the chain saw driving motor relative to the control component, it can be ensured that the heat dissipation air flow can flow from the battery pack and the control component to the chain saw driving motor to dissipate heat of the chain saw driving motor, which is conducive to reducing the transmission distance of the heat dissipation air flow, making the heat dissipation effect of the chain saw heat dissipation structure more remarkable, improving heat dissipation efficiency, being suitable for chain saws that need to efficiently dissipate heat of the chain saw driving motor, such as chain saws used at high intensity, and ensuring stable operation of the chain saw driving motor and improving heat dissipation performance of the chain saw.

[0030] The chain saw heat dissipation structure of the chain saw in the utility model has the following beneficial effects: the chain saw heat dissipation structure of the utility model is arranged in the shell of the chain saw, the chain saw heat dissipation structure comprises: an air guide assembly, the air guide assembly comprises an air guide channel and an air guide inlet and an air guide outlet communicated with the air guide channel, the air guide inlet is arranged towards the battery pack, and the air guide outlet is arranged towards the control component; a heat dissipation motor, the heat dissipation motor is arranged on the air guide assembly, the heat dissipation motor comprises a rotating shaft and a first heat dissipation blade arranged on the rotating shaft, so that the airflow passing through the heat dissipation motor is sucked into the air guide channel through the air guide inlet, and the airflow is pushed to the control component through the air guide outlet. In this way, the chain saw heat dissipation structure of the utility model is provided with the air guide assembly and the heat dissipation motor, the air duct layout is optimized, the efficient circulation of the airflow is ensured, the heat generated by the battery pack and the control component can be effectively dissipated under the guidance of the air guide channel, the heat dissipation problems of the battery pack, the control component and the like are effectively improved, the heat dissipation performance of the chain saw is significantly improved, the problem of poor heat dissipation effect of the chain saw in the prior art is solved, the damage risk caused by overheating of the chain saw is reduced, the chain saw can still maintain a good working state under long-time and high-intensity working conditions, the service life of the chain saw is prolonged, the use experience and working efficiency of the user are improved, and strong technical support is provided for performance optimization and upgrading of the chain saw. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0032] Figure 1 The structure schematic view of the chain saw heat dissipation structure in the chain saw of one specific embodiment of the utility model is provided.

[0033] Figure 2 The structure schematic view of the control component and the part of the chain saw heat dissipation structure in the chain saw shown in the figure is in the first direction. Figure 1

[0034] The structure schematic view of the control component and the part of the chain saw heat dissipation structure in the chain saw shown in the figure is in the second direction. Figure 3 Figure 2 The structure schematic view of the control component and the part of the chain saw heat dissipation structure in the chain saw shown in the figure is in the third direction.

[0035] Figure 4 Figure 2 The structure schematic view of the control component and the part of the chain saw heat dissipation structure in the chain saw shown in the figure is in the third direction.

[0036] Figure 5 The structure schematic view of the control component and the part of the chain saw heat dissipation structure in the chain saw shown in the figure is in the third direction.​​Figure 2 Structure diagram of the control components and the heat dissipation structure of the chain saw in the fourth direction;

[0037] Figure 6 For Figure 2 Structure diagram of the control components and the heat dissipation structure of the chain saw in the fifth direction;

[0038] Figure 7 For Figure 2 Structure diagram of the control components and the heat dissipation structure of the chain saw in the sixth direction;

[0039] Figure 8 For Figure 2 Structure diagram of the control components and the heat dissipation structure of the chain saw in the seventh direction;

[0040] Figure 9 For Figure 2 Structure diagram of the control components and the heat dissipation structure of the chain saw in the eighth direction;

[0041] Figure 10 For Figure 2 Structure diagram of the control components and the heat dissipation structure of the chain saw in the ninth direction;

[0042] Figure 11 For Figure 2 Sectional view of the control components and the heat dissipation structure of the chain saw;

[0043] Figure 12 For Figure 1 Structure diagram of the chain saw in one direction;

[0044] Figure 13 For Figure 12 Structure diagram of the partial structure of the chain saw;

[0045] Figure 14 For Figure 13 Side view of the partial structure of the chain saw;

[0046] Figure 15 For Figure 11 Position diagram of the chain saw driving motor, battery pack and control components of the chain saw.

[0047] Among them, the above-mentioned drawings include the following reference signs:

[0048] 1, air guide assembly; 10, air guide channel; 101, air guide inlet; 102, air guide outlet; 11, connecting cylinder; 110, flow hole; 12, first air guide cover; 121, first cover body; 1210, first mounting hole; 122, air inlet section; 13, second air guide cover; 131, second cover body; 1310, second mounting hole; 132, air outlet section;

[0049] 2, heat dissipation motor;

[0050] 100, housing;

[0051] 200, chain saw body;

[0052] 300, chain saw driving motor;

[0053] 400, battery pack; 410, battery pack shell; 420, ventilation hole;

[0054] 500, control component; 510, control shell; 520, control circuit board; 530, heat sink;

[0055] 600, chain saw heat dissipation structure. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0057] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. The present application can have various changes and variations for those skilled in the art, based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0058] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0059] In the description of the embodiments of the utility model, it needs to be understood that, the terms "center", "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, or the orientation or positional relationship commonly understood by the person skilled in the art, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. Unless otherwise stated, these orientation words do not indicate and imply that the device or element indicated must have a specific orientation or be constructed and operated in a specific orientation.

[0060] In the description of the embodiments of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0061] In order to facilitate the description, spatial relative terms such as "above", "above", "upper surface", "upper" and the like can be used to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "above" other devices or structures will be positioned "below" or "below" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative description used herein is interpreted accordingly.

[0062] In the description of the embodiments of the utility model, it also needs to be explained that, the terms "first", "second" and the like used in this paper to limit the parts are only for the convenience of distinguishing the corresponding parts, and do not mean to indicate the order or sequence, nor to limit the case, but only to distinguish the components or operations described by the same technical terms, and the above terms have no special meaning, therefore cannot be understood as limiting the protection scope of the application.

[0063] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0064] The technical solutions in the utility model will be described below with reference to the drawings.

[0065] In order to achieve the above-mentioned purpose, the technical solutions provided by an embodiment of the utility model are as follows:

[0066] As Figures 1 to 15 shown, the utility model provides a chain saw heat dissipation structure, chain saw heat dissipation structure sets up in the casing 100 of chain saw, chain saw heat dissipation structure includes: air guide component 1, air guide component 1 includes air guide channel 10 and with air guide channel 10 communication air guide inlet 101 and air guide outlet 102, air guide inlet 101 is set to battery pack 400, and air guide outlet 102 is set to control component 500;Heat dissipation motor 2, heat dissipation motor 2 sets up in air guide channel 10 or air guide inlet 101 or air guide outlet 102, and heat dissipation motor 2 includes the first heat dissipation blade of pivot and setting on the pivot, to draw the airflow from air guide inlet 101 to air guide channel 10 by heat dissipation motor 2, and the airflow is pushed to control component 500 by air guide outlet 102.

[0067] In this way, the chain saw heat dissipation structure of the utility model sets up air guide component 1 and heat dissipation motor 2, optimizes the air duct layout, ensures the efficient circulation of airflow, and the guiding effect of air guide channel 10 can effectively dissipate the heat generated by battery pack 400 and control component 500, effectively improves the heat dissipation problem of battery pack 400, control component 500 and the like, significantly improves the heat dissipation performance of chain saw, solves the problem of poor heat dissipation effect of the heat dissipation structure of chain saw in the prior art, thereby reducing the damage risk caused by the overheating of chain saw, so that chain saw can still maintain a good working condition under long-time, high-intensity working conditions, prolongs the service life of chain saw, improves the use experience and working efficiency of users, and provides strong technical support for the performance optimization and upgrading of chain saw.

[0068] When chain saw works, control heat dissipation motor 2 starts to work, utilizes the air suction and blowing function of heat dissipation motor 2 with the first heat dissipation blade, the pivot of heat dissipation motor 2 drives the first heat dissipation blade to rotate, and the airflow flowing into battery pack 400 (the airflow outside battery pack 400 flows into battery pack 400 under the suction force of heat dissipation motor 2) is sucked through air guide inlet 101, the airflow is blown to control component 500 by air guide outlet 102 after being guided by air guide channel 10, to realize efficient heat dissipation.

[0069] As Figure 1 and Figure 15As shown, the air guide assembly 1 comprises: a first air guide cover 12, a first end of the first air guide cover 12 is arranged towards the battery pack 400; a second air guide cover 13, a third end of the second air guide cover 13 is connected with a second end of the first air guide cover 12, and a fourth end of the second air guide cover 13 is an air guide outlet 102 arranged towards the control component 500. The air guide assembly 1 of the utility model optimizes the airflow path through the combination of the first air guide cover 12 and the second air guide cover 13, forms at least part of the air guide channel 10, ensures that the airflow can flow smoothly from the battery pack 400 to the control component 500, reduces the energy loss of the airflow in the transmission process, realizes effective heat transfer and dissipation in the case of limited space inside the chain saw, improves the heat dissipation efficiency, and reduces the risk of equipment overheating. When the air guide assembly 1 is applied in the chain saw which needs high-efficiency heat dissipation, such as the chain saw which needs to work continuously for a long time, the heat load of the chain saw can be effectively reduced, and the work efficiency is improved.

[0070] When the heat dissipation motor 2 works, the airflow enters the first air guide cover 12 through the air inlet 101 under the air suction function of the heat dissipation motor 2, then is guided through the first air guide cover 12 and the second air guide cover 13, and finally blows towards the control component 500, realizing continuous heat dissipation from the battery pack 400 to the control component 500.

[0071] Among them, the third end of the second air guide cover 13 and the second end of the first air guide cover 12 are detachably connected, so that the installation and disassembly between the first air guide cover 12 and the second air guide cover 13 become simple and fast, without the need for complex tools or equipment, reducing the assembly difficulty and time cost of the air guide assembly 1, and the first air guide cover 12 and the second air guide cover 13 can be quickly opened to maintain or repair the heat dissipation motor 2, and after the repair is completed, the original state can be conveniently restored, improving the maintenance efficiency of the heat dissipation motor 2.

[0072] As shown in the figure, Figures 2 to 11 As shown, the first air guide cover 12 comprises a first cover body 121 and an air inlet section 122 arranged on one side of the first cover body 121 close to the battery pack 400, and at least part of the heat dissipation motor 2 is located in the first cover body 121. The first air guide cover 12 of the utility model can accommodate at least part of the heat dissipation motor 2 through the combination of the first cover body 121 and the air inlet section 122, protects the heat dissipation motor 2, forms a structure which can effectively suck and guide the airflow from the battery pack 400, ensures that the airflow can be fully absorbed by the heat dissipation motor 2, improves the collection efficiency of the airflow, reduces the working load of the heat dissipation motor 2, makes the work of the heat dissipation motor 2 more efficient, effectively prevents the battery pack 400 from overheating, prolongs the service life of the battery pack 400, and improves the overall heat dissipation performance of the chain saw.

[0073] When the heat dissipation motor 2 starts, the air flow is pushed by the first heat dissipation blade of the heat dissipation motor 2 and enters the first cover body 121 through the air inlet section 122, realizing the guidance of the air flow from the battery pack 400 to the heat dissipation motor 2.

[0074] Optionally, the hole section of the air inlet hole of the air inlet section 122 is circular or elliptical or polygonal. In this way, by setting the shape of the hole section of the air inlet hole, the suction angle and speed of the air flow can be adjusted, so that the suction of the air flow is more smooth, the heat dissipation efficiency is improved, and the versatility of the chain saw heat dissipation structure is improved, and the market adaptability of the chain saw is enhanced.

[0075] In addition, the hole section of the air inlet hole of the air inlet section 122 can also be irregularly shaped. The irregularly shaped air inlet hole can help to more evenly distribute the air flow, avoid the air flow being concentrated in one point, improve the overall ventilation efficiency, reduce the vortex formed by the air flow near the air inlet hole, reduce energy loss, improve the linearity of the air flow, break the regularity of the air flow, reduce the vortex and air flow collision when the air flow passes through, thereby reducing noise, and also scattering sound waves, reducing sound wave reflection and concentration, further reducing noise level. In addition, the irregularly shaped air inlet hole can better integrate with the overall structure of the chain saw, improve the aesthetics and design sense of the chain saw, and be suitable for different models of chain saws, thereby improving the versatility of the chain saw heat dissipation structure and enhancing the market adaptability of the chain saw.

[0076] As shown in Figure 11 , the hole section of the air inlet hole of the air inlet section 122 is quadrangular. The quadrangular air inlet hole can reduce the sudden change of air flow speed, reduce vortex and air flow collision, and thereby reduce noise.

[0077] Further, the hole section of the air inlet hole is rectangular. The rectangular air inlet hole shape is regular without complex corners and edges, facilitating cleaning and maintenance, reducing dust and dirt accumulation, and being simple to connect with other rectangular components, so that standard sealing elements can be used, material utilization rate is high, and installation time and cost are reduced. In addition, by optimizing the aspect ratio of the rectangle, the mixing of hot air and cold air can be promoted, the heat exchange process is accelerated, the overall design of the chain saw is better integrated, and the aesthetics and design sense of the chain saw are improved.

[0078] As shown in Figure 11As shown, the hole section of the air inlet hole of the air inlet section 122 remains unchanged along the direction away from the first cover body 121. The utility model can ensure the stability and uniformity of the airflow when entering the air guide channel 10 by keeping the consistency of the hole section shape of the air inlet hole of the air inlet section 122, avoid the turbulence and energy loss of the airflow, improve the transmission efficiency of the airflow, and make the heat dissipation effect more stable, which is suitable for chain saws that need stable heat dissipation effect, such as chain saws used in high-altitude or high-humidity environments, and can ensure the consistency of the heat dissipation effect of the chain saw under various environmental conditions.

[0079] In the unillustrated embodiment of the air inlet section 122 of the utility model, the hole section of the air inlet hole of the air inlet section 122 gradually increases along the direction away from the first cover body 121. In this way, by adjusting the flow area of the air inlet section 122, the entering speed and flow of the airflow can be optimized, the suction amount of the airflow can be increased, and the resistance when the airflow enters can be reduced, so that the airflow can be absorbed by the heat dissipation motor 2 at the best speed and flow when entering the air guide channel 10, the temperature of the battery pack 400 can be effectively reduced, the heat dissipation effect of the battery pack 400 is more significant, the working load of the heat dissipation motor 2 is reduced, the overall heat dissipation performance of the chain saw is improved, which is suitable for chain saws that need high-efficiency heat dissipation, such as chain saws used for a long time in high-temperature environments, improves the stability and service life of the chain saw, and thus achieves the best heat dissipation effect.

[0080] As shown in the figure, Figure 11 The first cover body 121 includes a first mounting hole 1210 for mounting at least part of the heat dissipation motor 2, and the first mounting hole 1210 includes a cylindrical through hole. The first cover body 121 of the utility model can ensure the stable installation and efficient work of at least part of the heat dissipation motor 2 by setting the first mounting hole 1210, and the setting of the cylindrical through hole is beneficial to the smooth passage of the airflow, so that the working efficiency of the heat dissipation motor 2 is improved, the stable operation of the heat dissipation motor 2 is ensured, the heat dissipation effect is more significant, and it is suitable for chain saws that need stable heat dissipation effect, such as chain saws used under high intensity, and improves the heat dissipation performance of the chain saw.

[0081] The cylindrical through hole of the first mounting hole 1210 is machined with a motor mounting step for limiting and fixedly connecting the heat dissipation motor 2.

[0082] Specifically, the first cover body 121 and the air inlet section 122 are integrally formed. The utility model can reduce the production and disassembly steps of the air guide assembly 1 by setting the integrally formed first air guide cover 12, reduce the manufacturing cost and disassembly cost of the air guide assembly 1, improve the structural strength and air tightness of the air guide assembly 1, improve the heat dissipation efficiency of the air guide assembly 1, and is suitable for chain saws that need low-cost and high-efficiency manufacturing, which can effectively reduce the production cost of the chain saw and improve the production efficiency of the chain saw.

[0083] As Figures 2 to 11 shown, the second air deflector 13 includes a second cover body 131 and an air outlet section 132 arranged on one side of the second cover body 131 close to the control component 500, and at least part of the heat dissipation motor 2 is located in the second cover body 131. The second air deflector 13 of the utility model can accommodate at least part of the heat dissipation motor 2 through the combination of the second cover body 131 and the air outlet section 132, which protects the heat dissipation motor 2 and forms a structure that can effectively guide the airflow to blow to the control component 500, thereby facilitating the formation of stable heat dissipation airflow, ensuring that the control component 500 can be fully cooled, improving the heat dissipation efficiency of the airflow on the control component 500, prolonging the service life of the control component 500, and reducing the working load of the heat dissipation motor 2, thereby improving the overall heat dissipation performance of the chain saw. It is suitable for chain saws with control components 500 that are prone to overheating, such as high-power output chain saws, thereby prolonging the service life of the chain saw. When the heat dissipation motor 2 is working, the airflow from the first cover body 121 is pushed by the first heat dissipation blade of the heat dissipation motor 2 to blow to the control component 500 through the air outlet section 132 of the second cover body 131, thereby achieving efficient heat dissipation of the control component 500.

[0084] Optionally, the hole section of the air outlet hole of the air outlet section 132 is circular or elliptical or polygonal. In this way, by setting the hole section shape of the air outlet hole of the air outlet section 132, the blowing angle and speed of the airflow can be adjusted to make the airflow blow more smoothly, thereby optimizing the heat dissipation effect and improving the heat dissipation efficiency, and at the same time, it can adapt to control components 500 of different shapes, improve the versatility of the chain saw heat dissipation structure, and be suitable for chain saws of different models, thereby being able to flexibly match various chain saws and enhance the market adaptability of the chain saw.

[0085] In addition, the hole section of the air outlet hole of the air outlet section 132 can also be irregularly shaped. The irregularly shaped air outlet hole can help more evenly distribute the airflow, avoid the airflow concentrating in one point, improve the overall ventilation efficiency, reduce the formation of vortexes near the air outlet hole, reduce energy loss, improve the linearity of the airflow, break the regularity of the airflow, reduce vortexes and airflow collisions when the airflow passes through, thereby reducing noise, scattering sound waves, reducing sound wave reflection and concentration, and further reducing noise levels. In addition, the irregularly shaped air outlet hole can better integrate with the overall structure of the chain saw, improve the aesthetics and design of the chain saw, be suitable for chain saws of different models, improve the versatility of the chain saw heat dissipation structure, and enhance the market adaptability of the chain saw.

[0086] As Figure 4 shown, the hole section of the air outlet hole of the air outlet section 132 is quadrilateral. The quadrilateral air outlet hole can reduce the sudden change of airflow speed and reduce vortexes and airflow collisions, thereby reducing noise.

[0087] Further, the hole section of the air outlet hole is rectangular, the rectangular air outlet hole shape is regular without complex corners and edges, facilitating cleaning and maintenance, reducing dust and dirt accumulation, and connecting with other rectangular components more simply, using standard seals, high material utilization, reducing installation time and cost. In addition, by optimizing the aspect ratio of the rectangle, the mixing of hot air and cold air can be promoted, the heat exchange process is accelerated, and the overall design of the chain saw is better integrated, improving the aesthetics and design of the chain saw.

[0088] As shown in Figure 4 , the area of the hole section of the air outlet hole of the air outlet section 132 gradually increases in the direction away from the second cover body 131. The utility model sets the gradually increasing flow area of the air outlet section 132, which can optimize the distribution of airflow and ensure that the airflow can evenly cover the control component 500. When the airflow reaches the control component 500, it can achieve heat dissipation in the best distribution state, improving the heat dissipation efficiency.

[0089] As shown in Figure 11 , the second cover body 131 includes a second mounting hole 1310 for mounting at least part of the heat dissipation motor 2, and the second mounting hole 1310 includes a cylindrical through hole. The utility model sets the second mounting hole 1310, which is beneficial to the smooth passage of airflow and can ensure the stable installation of the heat dissipation motor 2, so that the working efficiency of the heat dissipation motor 2 is improved, the heat dissipation effect is more significant, and it is suitable for chain saws that require stable heat dissipation effect, such as chain saws under high intensity use, which can improve the heat dissipation performance of the chain saw.

[0090] Among them, the cylindrical through hole of the second mounting hole 1310 is also machined with a motor mounting step to limit and fixedly connect the heat dissipation motor 2.

[0091] Specifically, the second cover body 131 and the air outlet section 132 are integrally formed. The utility model sets the integrally formed second air guide cover 13, which can reduce the production and disassembly steps of the air guide assembly 1, reduce the manufacturing cost and disassembly cost of the air guide assembly 1, and improve the structural strength and air tightness of the air guide assembly 1, so that the heat dissipation efficiency of the air guide assembly 1 is improved, and it is suitable for chain saws that require low cost and high efficiency manufacturing, which can effectively reduce the production cost of the chain saw and improve the production efficiency of the chain saw.

[0092] As shown in Figure 1As shown, the air guide assembly 1 further comprises a connecting cylinder 11, a fifth end of the connecting cylinder 11 is provided with an air guide inlet 101 facing the battery pack 400, and a sixth end of the connecting cylinder 11 is connected with a first end of the first air guide cover 12. The air guide assembly 1 of the utility model is provided through the connecting cylinder 11, and the connecting cylinder 11, the first air guide cover 12 and the second air guide cover 13 jointly form the air guide channel 10, so that the airflow path between the battery pack 400 and the first air guide cover 12 can be formed, the energy loss in the airflow transmission process between the battery pack 400 and the first air guide cover 12 is reduced, the heat dissipation efficiency is improved, the heat dissipation effect of the battery pack 400 and the control component 500 is more significant, meanwhile, the working load of the heat dissipation motor 2 is reduced, the overall heat dissipation performance of the chain saw is improved, the utility model is suitable for the chain saw with high power output, and the stability and service life of the chain saw are improved.

[0093] Preferably, the sixth end of the connecting cylinder 11 is detachably connected with the first air guide cover 12.

[0094] Specifically, the flow hole 110 on the connecting cylinder 11 for airflow passing through is a columnar through hole. In this way, the columnar flow hole 110 can provide stable airflow guiding and ensure smooth transmission of the airflow in the connecting cylinder 11, and meanwhile, the structure of the columnar through hole is beneficial to reducing the resistance of the airflow in the transmission process, reducing the energy loss in the airflow transmission process, and enabling the airflow to advance forward with minimum resistance, so that the airflow flows more smoothly in the flow hole 110, thereby improving the airflow transmission efficiency and the heat dissipation effect, improving the heat dissipation efficiency, and being suitable for the chain saws that require efficient airflow transmission, such as the chain saws with high strength use, and ensuring smooth airflow transmission and improving the heat dissipation performance of the chain saw.

[0095] Optionally, the hole section of the flow hole 110 is circular or elliptical or polygonal. By changing the hole section shape of the flow hole 110, the transmission angle and speed of the airflow can be adjusted, so that the airflow transmission is more smooth, thereby optimizing the heat dissipation effect and improving the heat dissipation efficiency, and meanwhile, the utility model can be adapted to battery packs 400 of different shapes, improve the versatility of the air guide assembly 1 of the utility model, be suitable for chain saws of different models, and enhance the market adaptability of the chain saw.

[0096] Specifically, the extension direction of the flow hole 110 is perpendicular to the surface of the battery pack 400, so that the stroke of the flow hole 110 is the shortest, and the heat dissipation efficiency is greatly improved.

[0097] In addition, the hole section of the flow hole 110 can also be irregularly shaped. The irregularly shaped flow hole 110 can help to more evenly distribute the airflow, avoid the airflow from being concentrated in one point, improve the overall ventilation efficiency, reduce the vortex formed by the airflow near the flow hole 110, reduce the energy loss, improve the linearity of the airflow, break the regularity of the airflow, reduce the vortex and airflow collision generated when the airflow passes through, thereby reducing the noise, and also can scatter sound waves, reduce the reflection and concentration of sound waves, further reduce the noise level. In addition, the irregularly shaped flow hole 110 can better integrate with the overall structure of the chain saw, improve the aesthetics and design sense of the chain saw, and be suitable for different models of chain saws, thereby improving the universality of the chain saw heat dissipation structure and enhancing the market adaptability of the chain saw.

[0098] As shown in Figure 1 , the hole section of the flow hole 110 is a quadrilateral. The quadrilateral flow hole 110 can reduce the sudden change of airflow velocity, reduce the vortex and airflow collision, and thereby reduce the noise.

[0099] Specifically, the hole section of the flow hole 110 is a rectangle. The rectangular flow hole 110 has a regular shape without complex corners and edges, is convenient to clean and maintain, reduces the accumulation of dust and dirt, and is simple to connect with other rectangular components, so that standard sealing elements can be used, the material utilization rate is high, and the installation time and cost are reduced. In addition, by optimizing the aspect ratio of the rectangle, the mixing of hot air and cold air can be promoted, the heat exchange process can be accelerated, the overall design of the chain saw can be better integrated, and the aesthetics and design sense of the chain saw can be improved.

[0100] Further, the air guide assembly 1 further comprises an intermediate cylinder (not shown), a seventh end of the intermediate cylinder is connected with a second end of the first air guide cover 12, an eighth end of the intermediate cylinder is connected with a third end of the second air guide cover 13, and at least part of the heat dissipation motor 2 is located in the intermediate cylinder.

[0101] Among them, the seventh end of the intermediate cylinder is detachably connected with the first end of the first air guide cover 12, and the eighth end of the intermediate cylinder is detachably connected with the third end of the second air guide cover 13.

[0102] As shown in Figure 1 , the heat dissipation motor 2 is arranged in the air guide channel 10. The airflow passing through the air guide inlet 101 is sucked into the air guide channel 10 by the heat dissipation motor 2 and is pushed to the air guide outlet 102. The heat dissipation motor 2 is arranged in the air guide channel 10, which can ensure that the heat dissipation motor 2 is stably installed in the air guide channel 10, and at the same time, the air duct layout is optimized to ensure efficient circulation of the airflow and improve the heat dissipation efficiency.

[0103] The heat dissipation motor 2 of the utility model can also be arranged at the air guide inlet 101 (no drawing), which is used for guiding the airflow into the air guide channel 10. The utility model discloses the heat dissipation motor 2 is arranged at the air guide inlet 101, forms one-way airflow passage, reduces the influence of heat backflow, improves the heat dissipation efficiency.

[0104] The heat dissipation motor 2 of the utility model can also be arranged at the air guide outlet 102 (no drawing), which is used for pushing the airflow in the air guide channel 10 to the control component 500. The utility model discloses the heat dissipation motor 2 is arranged at the air guide outlet 102, avoids the local accumulation of heat in the air guide channel, improves the heat dissipation efficiency.

[0105] The chain saw heat dissipation structure includes multiple embodiments.

[0106] Embodiment one

[0107] The chain saw heat dissipation structure of the embodiment one is arranged in the shell 100 of the chain saw, and the chain saw heat dissipation structure includes: an air guide assembly 1, the air guide assembly 1 includes an air guide channel 10 and an air guide inlet 101 and an air guide outlet 102 communicated with the air guide channel 10, the air guide inlet 101 is arranged towards the battery pack 400, and the air guide outlet 102 is arranged towards the control component 500; a heat dissipation motor 2, the heat dissipation motor 2 is arranged in the air guide channel 10 or at the air guide inlet 101 or the air guide outlet 102, and the heat dissipation motor 2 includes a rotating shaft and a first heat dissipation blade arranged on the rotating shaft, so that the airflow is sucked into the air guide channel 10 from the air guide inlet 101 by the heat dissipation motor 2, and the airflow is pushed to the control component 500 by the air guide outlet 102.

[0108] In the chain saw heat dissipation structure of the embodiment one, the air guide assembly 1 includes: a connecting cylinder 11, a first air guide cover 12 and a second air guide cover 13, the fifth end of the connecting cylinder 11 is the air guide inlet 101 arranged towards the battery pack 400, the sixth end of the connecting cylinder 11 is connected with the first end of the first air guide cover 12, the first end of the first air guide cover 12 is arranged towards the battery pack 400, the third end of the second air guide cover 13 is connected with the second end of the first air guide cover 12, and the fourth end of the second air guide cover 13 is the air guide outlet 102 arranged towards the control component 500.

[0109] In the chain saw heat dissipation structure of the embodiment one, the overflow hole 110 on the connecting cylinder 11 for airflow is a columnar through hole, the hole section of the overflow hole 110 can also be irregular, and the extension direction of the overflow hole 110 is perpendicular to the surface of the battery pack 400.

[0110] In the chain saw heat dissipation structure of the first embodiment, the first air guide cover 12 comprises a first cover body 121 and an air inlet section 122 arranged on the side of the first cover body 121 close to the battery pack 400, the first cover body 121 and the air inlet section 122 are integrally formed, and at least part of the heat dissipation motor 2 is located in the first cover body 121; the first cover body 121 comprises a first mounting hole 1210 for mounting at least part of the heat dissipation motor 2, the first mounting hole 1210 comprises a cylindrical through hole, and a motor mounting step is processed in the cylindrical through hole of the first mounting hole 1210 to limit and fixedly connect the heat dissipation motor 2; the hole section of the air inlet hole of the air inlet section 122 is quadrangular, and the hole section of the air inlet hole of the air inlet section 122 remains unchanged along the direction away from the first cover body 121.

[0111] In the chain saw heat dissipation structure of the first embodiment, the second air guide cover 13 comprises a second cover body 131 and an air outlet section 132 arranged on the side of the second cover body 131 close to the control component 500, the second cover body 131 and the air outlet section 132 are integrally formed, and at least part of the heat dissipation motor 2 is located in the second cover body 131; the second cover body 131 comprises a second mounting hole 1310 for mounting at least part of the heat dissipation motor 2, the second mounting hole 1310 comprises a cylindrical through hole, and a motor mounting step is also processed in the cylindrical through hole of the second mounting hole 1310 to limit and fixedly connect the heat dissipation motor 2; the hole section of the air outlet hole of the air outlet section 132 is quadrangular, and the area of the hole section of the air outlet hole of the air outlet section 132 gradually increases along the direction away from the second cover body 131.

[0112] Embodiment two

[0113] The difference between the second embodiment and the above-mentioned first embodiment lies in whether the connecting cylinder 11 is arranged or not, the air guide assembly 1 of the chain saw heat dissipation structure of the second embodiment does not comprise the connecting cylinder 11, and the air inlet section 122 of the first air guide cover 12 directly extends to the ventilation hole 420 on the battery pack 400.

[0114] Embodiment three

[0115] The difference between the third embodiment and the above-mentioned first embodiment lies in the shape of the hole section of the flow hole 110 of the connecting cylinder 11, in the air guide assembly 1 of the chain saw heat dissipation structure of the third embodiment, the shape of the hole section of the flow hole 110 of the connecting cylinder 11 is circular.

[0116] Embodiment four

[0117] The difference between the fourth embodiment and the above-mentioned first embodiment lies in the shape of the hole section of the flow hole 110 of the connecting cylinder 11, in the air guide assembly 1 of the chain saw heat dissipation structure of the fourth embodiment, the shape of the hole section of the flow hole 110 of the connecting cylinder 11 is elliptical.

[0118] Embodiment Five

[0119] The difference between this embodiment five and the above-mentioned embodiment one is that the shape of the hole section of the air inlet hole of the air inlet section 122 of the first air guide cover 12 is different. In the air guide assembly 1 of the chain saw heat dissipation structure of this embodiment five, the shape of the hole section of the air inlet hole of the air inlet section 122 of the first air guide cover 12 is circular.

[0120] Embodiment Six

[0121] The difference between this embodiment six and the above-mentioned embodiment one is that the shape of the hole section of the air inlet hole of the air inlet section 122 of the first air guide cover 12 is different. In the air guide assembly 1 of the chain saw heat dissipation structure of this embodiment six, the shape of the hole section of the air inlet hole of the air inlet section 122 of the first air guide cover 12 is elliptical.

[0122] Embodiment Seven

[0123] The difference between this embodiment seven and the above-mentioned embodiment one is that the shape of the hole section of the air outlet hole of the air outlet section 132 of the second air guide cover 13 is different. In the air guide assembly 1 of the chain saw heat dissipation structure of this embodiment seven, the shape of the hole section of the air outlet hole of the air outlet section 132 of the second air guide cover 13 is circular.

[0124] Embodiment Eight

[0125] The difference between this embodiment eight and the above-mentioned embodiment one is that the shape of the hole section of the air outlet hole of the air outlet section 132 of the second air guide cover 13 is different. In the air guide assembly 1 of the chain saw heat dissipation structure of this embodiment eight, the shape of the hole section of the air outlet hole of the air outlet section 132 of the second air guide cover 13 is elliptical.

[0126] Embodiment Nine

[0127] The difference between this embodiment nine and the above-mentioned embodiment one is that the intermediate cylinder is arranged or not. The air guide assembly 1 of the chain saw heat dissipation structure of this embodiment nine further comprises an intermediate cylinder. The seventh end of the intermediate cylinder is connected with the first end of the first air guide cover 12, the eighth end of the intermediate cylinder is connected with the third end of the second air guide cover 13, and at least part of the heat dissipation motor 2 is located in the intermediate cylinder.

[0128] As Figures 1 to 15The utility model also provides a chain saw shown, it includes: casing 100, chain saw body 200, chain saw body 200 part is located in casing 100, chain saw body 200 includes sprocket, chain saw drive motor 300, chain saw drive motor 300 is located in casing 100 and is driven to be connected with sprocket, battery pack 400, battery pack 400 is located outside casing 100 and is connected with casing 100, control component 500, control component 500 is located in casing 100, control component 500 sets up between chain saw drive motor 300 and battery pack 400, chain saw heat radiation structure 600, chain saw heat radiation structure 600 is chain saw heat radiation structure above-mentioned, chain saw heat radiation structure 600 sets up in casing 100 and is located between battery pack 400 and control component 500, wherein, chain saw drive motor 300's end away from chain saw body 200 is provided with second radiating blade for the air current of reaching control component 500.

[0129] The chain saw has the characteristics of high efficiency, portability and easy operation. It is widely used in forestry logging, wood processing, garden pruning, emergency rescue and other fields. According to the power source, the chain saw of the utility model is an electric chain saw. The electric chain saw is a tool that uses a chain saw drive motor 300 to drive the sprocket of the chain saw body 200 to rotate, so as to drive the chain to move for cutting. It is generally used for cutting wood and can also be used for cutting bricks, cement and the like. Generally, the power of the electric chain saw can reach 1500W, and some high-power products can reach 2500W. The high-power electric chain saw necessarily uses a high-power electric motor. The current passing through the chain saw drive motor 300, the battery pack 400 for supplying power to the chain saw drive motor 300 and the control component 500 for driving the chain saw drive motor 300 is also relatively large. The chain saw drive motor 300, the battery pack 400 and the control component 500 will generate a large amount of heat. If the heat is not dissipated to the outside air in time, the temperature of the chain saw drive motor 300, the battery pack 400 and the control component 500 will rise, which may even cause the battery pack 400 and the control component 500 to fail.

[0130] The chain saw of the utility model further absorbs the air flow from the control component 500 through the second radiating blade of the chain saw drive motor 300, effectively cools the space near the chain saw drive motor 300, and improves the cooling efficiency. When the chain saw is working at high intensity, the temperature of the equipment can be effectively controlled to avoid damage caused by overheating. It is suitable for occasions where the battery pack 400 and the control component 500 generate a lot of heat when the chain saw works for a long time. It makes full use of the space inside the chain saw, maximizes the cooling performance of the chain saw, and maintains the compactness and portability of the chain saw structure.

[0131] When the chain saw is working, the second heat dissipation fin of the chain saw driving motor 300 is started to absorb the air flow from the control component 500, effectively dissipating heat in the space near the chain saw driving motor 300, thereby ensuring the stability and safety of the chain saw under long-time high-intensity work.

[0132] As shown in Figure 12 The battery pack 400 includes a battery pack shell 410 and a battery cell located in the battery pack shell 410, and a plurality of ventilation holes 420 are arranged on the battery pack shell 410 in a spaced manner, and the air guide inlet 101 is arranged towards the ventilation hole 420.

[0133] The chain saw of the utility model has the chain saw heat dissipation structure, uses the air guide assembly 1 and the heat dissipation motor 2 to ensure the efficient circulation of air flow, and the guiding effect of the air guide channel 10 can effectively take away the heat generated by the battery pack 400 and the control component 500 in the chain saw, effectively improving the heat dissipation problem of the battery pack 400, the control component 500 and the like in the chain saw. At the same time, the chain saw of the utility model has the ventilation hole 420 arranged on the battery pack shell 410, which can effectively guide the air flow into the battery pack 400, thereby realizing heat dissipation of the battery cell, improving the heat dissipation efficiency of the battery pack 400, reducing the risk of overheating of the battery pack 400, prolonging the service life of the battery pack 400, and also enabling the air flow entering the battery pack 400 to continue to flow to the control component 500 and the like through the chain saw heat dissipation structure, so as to realize heat dissipation inside the chain saw.

[0134] When the chain saw is working, the air flow first enters the battery pack 400 through the ventilation hole 420 on the battery pack shell 410 to dissipate heat for the battery cell, and then enters the chain saw heat dissipation structure through the ventilation hole 420 on the battery pack shell 410, and then flows to the control component 500.

[0135] As shown in Figures 2 to 11 The control component 500 includes a control shell 510 and a control circuit board 520 arranged in the control shell 510, and a plurality of heat dissipation fins 530 are arranged on the outer periphery of the control shell 510 in a spaced manner, and the air guide outlet 102 is arranged towards the heat dissipation fin 530.

[0136] The chain saw of the utility model has the heat dissipation fin 530 arranged on the control shell 510, which can effectively guide the air flow blown from the heat dissipation motor 2 into the heat dissipation gap formed by the plurality of heat dissipation fins 530, so as to dissipate heat for the control circuit board 520 through the plurality of heat dissipation fins 530, improve the heat dissipation efficiency of the control circuit board 520, reduce the risk of overheating of the control circuit board 520, and prolong the service life of the control circuit board 520.

[0137] When the chain saw works, the air flow from the chain saw heat dissipation structure flows to the fins 530 on the control housing 510, realizing efficient heat dissipation of the control circuit board 520, and then the air flow is sucked away by the second heat dissipation blades of the chain saw driving motor 300, realizing effective heat dissipation of the space near the chain saw driving motor 300.

[0138] Specifically, the chain saw driving motor 300 is located on the side of the control component 500 away from the chain saw heat dissipation structure 600. In this way, by arranging the position of the chain saw driving motor 300 relative to the control component 500, it can be ensured that the heat dissipation air flow can flow from the battery pack 400 and the control component 500 to the chain saw driving motor 300, realizing heat dissipation of the chain saw driving motor 300, which is conducive to reducing the transmission distance of the heat dissipation air flow, making the heat dissipation effect of the chain saw heat dissipation structure 600 more significant, improving the heat dissipation efficiency, and being suitable for chain saws that need to efficiently heat the chain saw driving motor 300, such as chain saws used in high strength, which can ensure the stable operation of the chain saw driving motor 300 and improve the heat dissipation performance of the chain saw.

[0139] The working process of the chain saw heat dissipation structure of the utility model is as follows:

[0140] (1) In actual use, when the chain saw starts to work, the heat dissipation motor 2 is started, and air is sucked from the battery pack 400 through the air inlet 101, and the air flow outside the battery pack 400 flows into the battery pack 400 through the vent hole 420 and then flows out, and then enters the connecting barrel 11 through the air inlet 101, and after passing through the entire air guide channel 10 through the first air guide cover 12 and the second air guide cover 13, under the driving action of the first heat dissipation blades of the heat dissipation motor 2, it is blown to the multiple fins 530 of the control component 500 through the air outlet 102.

[0141] (2) The air reaching the control component 500 is further accelerated by the second heat dissipation blades of the chain saw driving motor 300, carries away the heat in the space nearby, and finally dissipates the heat to the atmosphere, realizing efficient heat dissipation of the battery pack 400, the control component 500 and the chain saw driving motor 300 and the like.

[0142] The utility model has at least the following beneficial effects:

[0143] The chain saw heat dissipation structure of the utility model is provided with the air guide assembly 1 and the heat dissipation motor 2, optimizes the air duct layout, ensures the efficient circulation of the airflow, the guiding effect of the air guide channel 10 can effectively dissipate the heat generated by the battery pack 400 and the control component 500, effectively improves the heat dissipation problem of the battery pack 400, the control component 500 and the like, significantly improves the heat dissipation performance of the chain saw, solves the problem of poor heat dissipation effect of the heat dissipation structure of the chain saw in the prior art, thereby reducing the damage risk caused by the overheating of the chain saw, enabling the chain saw to still maintain a good working condition under the long-time, high-intensity working condition, prolonging the service life of the chain saw, improving the use experience and work efficiency of the user, and providing strong technical support for the performance optimization and upgrading of the chain saw.

[0144] It is apparent for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0145] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and the skilled person should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that can be understood by the skilled person.

[0146] It is also important to note that the term "or" as used herein is intended to mean an inclusive "or," such that "A or B" means any or all of the items listed with no options required to be selected with the item. Further, the terms "comprise," "comprising," "include," "including," and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense that may be implied by use of these terms in some instances. As used herein, the terms "program" and "software" are meant to include, but are not limited to, routines, applications, computer programs, computer code, computer instructions, and the like.

[0147] The foregoing description, for purposes of clarity, describes the above-described embodiments in connection with separate components. It is to be understood that the described components can be combined or separated into different components. It is to be understood that the described components can be implemented in hardware, software, firmware or a combination thereof. It is to be further understood that the described components can be implemented in a computer program product having a computer-readable medium. The computer-readable medium having instructions for carrying out the above-described embodiments.

Claims

1. A chain saw heat dissipation structure, characterized by comprising: The chain saw heat dissipation structure is arranged in a housing (100) of the chain saw, and the chain saw heat dissipation structure comprises: The air guide assembly (1) comprises an air guide channel (10), and an air guide inlet (101) and an air guide outlet (102) in communication with the air guide channel (10), the air guide inlet (101) is arranged towards the battery pack (400), and the air guide outlet (102) is arranged towards the control component (500); The heat dissipation motor (2) is arranged on the air guide assembly (1), the heat dissipation motor (2) comprises a rotating shaft and a first heat dissipation blade arranged on the rotating shaft, so that the air flow is sucked into the air guide channel (10) from the air guide inlet (101) by the heat dissipation motor (2), and the air flow is pushed to the control component (500) by the air guide outlet (102).

2. The chain saw heat dissipating structure according to claim 1, wherein The air guide assembly (1) comprises: The first air guide cover (12) is arranged towards the battery pack (400) at a first end thereof; The second air guide cover (13) is connected with a second end of the first air guide cover (12) at a third end thereof, and a fourth end of the second air guide cover (13) is the air guide outlet (102) arranged towards the control component (500).

3. The chain saw heat dissipating structure according to claim 2, wherein The first air guide cover (12) comprises a first cover body (121) and an air inlet section (122) arranged on a side of the first cover body (121) close to the battery pack (400), and at least part of the heat dissipation motor (2) is located in the first cover body (121).

4. The chain saw heat dissipating structure according to claim 3, wherein The hole section of the air inlet hole of the air inlet section (122) is circular, elliptical or polygonal.

5. The chain saw heat dissipating structure according to claim 3, wherein The hole section of the air inlet hole of the air inlet section (122) remains unchanged in the direction away from the first cover body (121).

6. The chain saw heat dissipating structure according to claim 3, wherein The hole section of the air inlet hole of the air inlet section (122) gradually increases in the direction away from the first cover body (121).

7. The chain saw heat dissipating structure according to claim 3, wherein The first cover body (121) comprises a first mounting hole (1210) for mounting at least part of the heat dissipation motor (2), and the first mounting hole (1210) comprises a cylindrical through hole.

8. The chain saw heat dissipating structure according to claim 3, wherein The first cover body (121) and the air inlet section (122) are integrally formed.

9. The chain saw heat dissipating structure according to claim 2, wherein The second air guide cover (13) comprises a second cover body (131) and an air outlet section (132) arranged on a side of the second cover body (131) close to the control component (500), and at least part of the heat dissipation motor (2) is located in the second cover body (131).

10. The chain saw heat dissipating structure according to claim 9, wherein The hole section of the air outlet hole of the air outlet section (132) is circular, elliptical or polygonal.

11. The chain saw heat dissipating structure according to claim 9, wherein The area of the hole section of the air outlet hole of the air outlet section (132) gradually increases in the direction away from the second cover body (131).

12. The chain saw heat dissipating structure according to claim 9, wherein The second cover body (131) comprises a second mounting hole (1310) for mounting at least part of the heat dissipation motor (2), and the second mounting hole (1310) comprises a cylindrical through hole.

13. The chain saw heat dissipating structure according to claim 9, wherein The second cover body (131) and the air outlet section (132) are integrally formed.

14. The chain saw heat dissipating structure according to claim 1, wherein The heat dissipation motor (2) is arranged in the air guide channel (10), the airflow passing through the air guide inlet (101) is sucked into the air guide channel (10) by the heat dissipation motor (2), and is pushed to the air guide outlet (102).

15. The chain saw heat dissipating structure according to claim 1, wherein The heat dissipation motor (2) is arranged at the air guide inlet (101) and used for guiding the airflow into the air guide channel (10).

16. The chain saw heat dissipating structure according to claim 1, wherein The heat dissipation motor (2) is arranged at the air guide outlet (102) and used for pushing the airflow in the air guide channel (10) to the control component (500).

17. The chain saw heat dissipating structure according to claim 2, wherein The air guide assembly (1) further comprises a connecting cylinder (11), a fifth end of the connecting cylinder (11) is the air guide inlet (101) arranged towards the battery pack (400), and a sixth end of the connecting cylinder (11) is connected with a first end of the first air guide cover (12).

18. The chain saw heat dissipating structure according to claim 17, wherein The flow hole (110) on the connecting cylinder (11) for the airflow to pass through is a columnar through hole.

19. The chain saw heat dissipating structure according to claim 18, wherein The hole section of the flow hole (110) is circular, elliptical or polygonal.

20. A chain saw characterized in that Comprise: a shell (100); a chain saw body (200) partially located in the shell (100), the chain saw body (200) comprising a chain wheel; a chain saw driving motor (300) located in the shell (100) and drivingly connected with the chain wheel; a battery pack (400) located outside the shell (100) and connected with the shell (100); a control component (500) located in the shell (100) and arranged between the chain saw driving motor (300) and the battery pack (400); a chain saw heat dissipation structure (600) according to any one of claims 1 to 19, the chain saw heat dissipation structure (600) being arranged in the shell (100) and between the battery pack (400) and the control component (500); wherein a far end of the chain saw driving motor (300) away from the chain saw body (200) is provided with a second heat dissipation blade for sucking the airflow reaching the control component (500).

21. The chain saw of claim 20, wherein, The battery pack (400) comprises a battery pack shell (410) and a battery cell located in the battery pack shell (410), a plurality of ventilation holes (420) are arranged on the battery pack shell (410) at intervals, and the air guide inlet (101) is arranged towards the ventilation holes (420).

22. The chain saw of claim 20, wherein, The control component (500) comprises a control shell (510) and a control circuit board (520) arranged in the control shell (510), a plurality of heat dissipation fins (530) are arranged on an outer circumferential surface of the control shell (510) at intervals, and the air guide outlet (102) is arranged towards the heat dissipation fins (530).

23. The chain saw of claim 20, wherein, The chain saw driving motor (300) is located on a side of the control component (500) away from the chain saw heat dissipation structure (600).

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