Table saw and direct-current tool system

Abstract

A table saw, comprising: a worktable comprising a longitudinally extending opening; a saw blade configured to rotate about an output shaft as an axis, wherein the output shaft is arranged below the worktable, and the saw blade passes through the opening to be partially exposed above the worktable; a dust collection assembly comprising a fan and a dust storage component, wherein the fan is configured to form an air path when rotating and to guide air around the saw blade to flow toward the dust storage component; at least one electric motor configured to drive the output shaft and the fan; a drive circuit configured to supply electrical energy to the at least one electric motor; and at least one direct-current power interface, wherein the direct-current power interface can be mechanically and electrically connected to a battery pack, and the direct-current power interface is further configured to be electrically connected to the drive circuit. The table saw has a simple structure and is convenient to operate.

Description

Table saws and DC tool systems

[0001] This application claims priority to Chinese patent application No. 202411731869.3, filed on November 28, 2024, with the following applications: Chinese Patent Application No. 202511641048.5, filed on November 10, 2025, with the following applications: Chinese Patent Application No. 202511639315.5, filed on November 10, 2025, with the following applications: Chinese Patent Application No. 202522387676.7, filed on November 10, 2025, with the following applications: Chinese Patent Application No. 202522384810.8, filed on November 10, 2025.

[0002] The entire contents of the above applications are incorporated herein by reference. Technical Field

[0003] This application relates to a table-type tool, specifically a table saw. Background Technology

[0004] One type of table saw in this technology is widely used for cutting wood, profiles, and other materials. However, table saws often generate a large amount of dust during cutting. This dust easily disperses into the air, is difficult to collect, and causes secondary pollution, affecting user health. Therefore, there is a need to design a table saw that can automatically collect the dust generated during cutting. Furthermore, considering that most table saws on the market are currently AC powered, users must be in an environment with AC power to operate the saw. The distance of the power cord also affects the user's experience, making operation inconvenient and making the saw difficult to carry.

[0005] This section provides background information related to this application, which is not necessarily prior art. Summary of the Invention

[0006] One object of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, one object of this application is to provide a trolley capable of switching from a single-layer trolley to a trolley with at least two layers using a storage box.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] A table saw includes: a worktable including a longitudinally extending opening; a saw blade configured to rotate about an output shaft located below the worktable, the saw blade passing through the opening and partially exposed above the worktable; a dust collection assembly including a fan and a dust storage component, the fan being configured to form an airflow path when rotating, guiding air around the saw blade toward the dust storage component; at least one motor configured to drive the output shaft and the fan; a drive circuit configured to supply electrical power to the at least one motor; and at least one DC power interface capable of being mechanically and electrically connected to a battery pack, the DC power interface also being configured to be electrically connected to the drive circuit.

[0009] In some embodiments, the table saw also includes a start switch disposed between the DC power interface and the drive circuit, wherein no current flows through the drive circuit when the start switch is off.

[0010] In some embodiments, when the battery pack is installed to the DC power interface, the battery pack is not higher than the worktable in the vertical direction.

[0011] In some embodiments, the DC power interface is an open battery pack mounting section.

[0012] In some embodiments, the DC power interface is a closed battery pack mounting section.

[0013] In some embodiments, the number of motors is one, and the motor includes a motor shaft, a saw blade and a fan respectively disposed at both ends of the motor shaft.

[0014] In some embodiments, the number of motors is two, with the two motors driving the fan and the saw blade respectively.

[0015] In some embodiments, at least two battery packs coupled to a DC power interface are discharged in series.

[0016] In some embodiments, at least two battery packs coupled to a DC power interface are discharged in parallel.

[0017] In some embodiments, the rated voltage of the battery pack is greater than or equal to 20V, and the rated energy of the battery pack is greater than or equal to 80 watt-hours.

[0018] In some embodiments, the dust collection efficiency of the dust collection component is greater than or equal to 90%.

[0019] A power tool system includes a battery pack comprising: a housing; a plurality of battery cells housed within the housing; and a tool interface disposed within the housing and detachably mechanically and electrically connected to the power tool; a table saw including: a worktable including a longitudinally extending opening; a saw blade configured to rotate about an output shaft disposed below the worktable, the saw blade passing through the opening and partially exposed above the worktable; a dust collection assembly including a fan and a dust storage component, the fan being configured to form an airflow path when rotating, directing airflow around the saw blade toward the dust storage component; a motor configured to drive the output shaft and the fan; and a DC power interface configured to be mechanically and electrically connected to the tool interface to supply electrical power to the motor.

[0020] In some embodiments, when the battery pack is installed to the DC power interface, the battery pack is not higher than the worktable in the vertical direction.

[0021] In some embodiments, the rated voltage of the battery pack is greater than or equal to 20V, and the rated energy of the battery pack is greater than or equal to 80 watt-hours.

[0022] In some embodiments, the power tool system may also include other power tools, and the battery pack may be detached from the DC power interface for use with other power tools.

[0023] In some embodiments, there is one motor and one fan. When the fan rotates, the airflow formed passes through the stator of the motor and the dust collection component.

[0024] In some embodiments, the DC power interface is located on the side wall of the table saw.

[0025] In some embodiments, the DC power interface is located on the left side wall of the table saw, and the battery pack is inserted into the DC power interface in the left-right direction.

[0026] A table saw includes: a worktable defining a working plane, the worktable including a longitudinally extending opening; a saw blade configured to rotate about an output shaft as an axis, the output shaft being disposed below the worktable and tiltable relative to the working plane, the saw blade passing through the opening and partially exposed above the worktable; a dust collection assembly including a fan and a dust storage component, the fan being configured to form an airflow path when rotating, directing airflow to the dust storage component; at least one motor configured to drive the output shaft and the fan; the dust storage component including a dust collection box, the dust collection box tilting synchronously when the output shaft of the saw blade tilts.

[0027] In some embodiments, the dust collection component further includes a top cover that tilts synchronously with the dust collection box when the output shaft of the saw blade tilts.

[0028] In some embodiments, the table saw further includes a saw blade cavity disposed below the worktable, the saw blade cavity being used to surround the saw blade, and the cavity wall of the saw blade cavity being fixedly connected to the top cover.

[0029] In some embodiments, the top cover includes a first inlet for connecting to the cavity wall, and the ratio of the first inlet to the saw blade diameter is greater than or equal to 0.25 and less than or equal to 0.5.

[0030] In some embodiments, the cavity wall is made of plastic.

[0031] In some embodiments, the dust collection component further includes a locking structure, which has a locked state and an unlocked state. When the locking structure is in the locked state, the top cover is fixed relative to the dust collection box; when the locking structure is in the unlocked state, the dust collection box can be detached from the top cover.

[0032] In some embodiments, the top cover also includes a slide rail, along which the dust collection box can move when the locking structure is in the unlocked state.

[0033] In some embodiments, the bottom of the dust collection box has a chamfered / beveled structure.

[0034] In some embodiments, the default position of the output shaft is parallel to the working plane, and the angle between the tiltable position of the output shaft and the default position is greater than or equal to 45 degrees.

[0035] In some embodiments, the dust storage component is a box with a fixed volume of 2 liters or more and 20 liters or less.

[0036] In some embodiments, the dust collection box is at least partially made of a transparent material.

[0037] In some embodiments, the dust collection box is made of a non-flexible material.

[0038] A table saw includes: a worktable including a longitudinally extending opening; a saw blade configured to rotate about an output shaft disposed below the worktable, the saw blade passing through the opening and partially exposed above the worktable; a dust collection assembly including a fan and a dust storage component, the fan being configured to form an airflow path when rotating, directing airflow to the dust storage component; at least one motor configured to drive the output shaft and the fan; and a display screen disposed below the worktable; the display screen providing a visual alert when the table saw malfunctions.

[0039] In some embodiments, the display screen is an LCD screen.

[0040] In some embodiments, the table saw further includes a detection component configured to detect the working state of the table saw, and a controller communicatively connected to the detection component and the display screen. The display screen includes multiple preset icon display areas, and when the working state meets preset conditions, the display screen displays a preset symbol in the icon display area.

[0041] In some embodiments, the icon display area includes a maintenance indicator area. When the controller detects one or more of the following: a start switch failure, a MOS damage failure, a no-start failure, or no other failure after 500ms of power-on, and the speed is still below 4000rpm, the maintenance indicator area displays a maintenance indicator.

[0042] In some embodiments, the icon display area includes an over-temperature indicator area, which displays an over-temperature indicator when the controller detects that the battery pack temperature is higher than 80 degrees Celsius.

[0043] In some embodiments, the icon display area also includes a dust full indicator area, which displays a dust full indicator when the remaining capacity of the dust storage component is less than or equal to a preset threshold.

[0044] In some embodiments, the detection component includes at least one of a capacitive sensor, a laser rangefinder, a pressure sensor, and a vision sensor to detect the remaining capacity of the dust storage component.

[0045] In some embodiments, the table saw further includes a buzzer that is communicatively connected to the controller and configured to issue an audible alert in the event of a malfunction.

[0046] In some embodiments, the icon display area also includes a speed display area, which displays an icon corresponding to the current speed gear.

[0047] In some embodiments, the table saw also includes a battery pack powered by a motor, and the icon display area also includes a battery pack power display area that displays the current battery pack power level.

[0048] In some embodiments, the icon display area includes a fault indicator area, which displays a fault indicator when the controller detects that the MOS temperature is higher than 85 degrees Celsius.

[0049] The advantage of this application is that it provides a table saw with a DC power interface that can collect dust, making it convenient for users to carry and operate. Attached Figure Description

[0050] Figure 1 is a perspective view of one embodiment of the table saw in this application;

[0051] Figure 2 is a perspective view of the table saw shown in Figure 1 from another angle;

[0052] Figure 3 is a perspective view of another installation position of the battery pack in the table saw shown in Figure 1;

[0053] Figure 4 is a perspective view of the table saw shown in Figure 1 sliding to a certain position by the grid member;

[0054] Figure 5 is a cross-sectional view of the table saw shown in Figure 1 along the AA direction;

[0055] Figure 6 is a schematic diagram of part of the structure of the table saw shown in Figure 1;

[0056] Figure 7 is a schematic diagram of the partial structure shown in Figure 6 from another perspective;

[0057] Figure 8 is a cross-sectional view of part of the structure shown in Figure 6 along the BB direction;

[0058] Figure 9 is a cross-sectional view along the CC direction of the cross-sectional view shown in Figure 8, at which point the abutment is in the unlocked state;

[0059] Figure 10 is a cross-sectional view along the CC direction of the cross-section shown in Figure 8, at which point the abutment is in a locked state;

[0060] Figure 11 is a plan view of the dust collection component in the table saw shown in Figure 1;

[0061] Figure 12 is a perspective view of the storage component shown in Figure 11;

[0062] Figure 13 is a cross-sectional view of the storage component shown in Figure 11 along the DD direction, at which point the rotating component engages with the second inlet;

[0063] Figure 14 is a separation diagram of the second inlet and the external pipe in the dust storage component shown in Figure 1. At this time, the rotating part is engaged with the first inlet.

[0064] Figure 15 is a cross-sectional view along the EE direction of the separation diagram shown in Figure 14, at which point the rotating part mates with the first inlet;

[0065] Figure 16 is a partial enlarged view of the sectional view shown in Figure 9;

[0066] Figure 17 is a partial enlarged view of the sectional view shown in Figure 9;

[0067] Figure 18 is a partial enlarged view of the sectional view shown in Figure 10;

[0068] Figure 19 is a partial enlarged view of the sectional view shown in Figure 10;

[0069] Figure 20 is a perspective view of another structure of the top cover and dust collection box in the table saw of this application;

[0070] Figure 21 is a plan view of the table saw in Figure 20;

[0071] Figure 22 is a cross-sectional view of the table saw in Figure 20;

[0072] Figure 23 is a cross-sectional view of the table saw in Figure 20;

[0073] Figure 24 is a cross-sectional view of the table saw in Figure 20;

[0074] Figure 25 is a cross-sectional view of the table saw in Figure 20;

[0075] Figure 26 is a perspective view of the limiting device;

[0076] Figure 27 is a plan view of the limiting device in Figure 26;

[0077] Figure 28 is a cross-sectional view of the limiting device in Figure 27;

[0078] Figure 29 is a partial enlarged view of the sectional view shown in Figure 22;

[0079] Figure 30 is a partial enlarged view of the sectional view shown in Figure 25;

[0080] Figure 31 is a partial enlarged view of the sectional view shown in Figure 22;

[0081] Figure 32 is a partial enlarged view of the sectional view shown in Figure 24;

[0082] Figure 33 is a partial enlarged view of the 3D view shown in Figure 20;

[0083] Figure 34 is an exploded view of a local structure in the 3D view shown in Figure 20;

[0084] Figure 35 is a three-dimensional view of a partial structure in the three-dimensional image shown in Figure 20;

[0085] Figure 36 is a three-dimensional view of a partial structure in the three-dimensional image shown in Figure 20;

[0086] Figure 37 is an exploded view of a local structure in the 3D view shown in Figure 20;

[0087] Figure 38 is a perspective view of the exploded view shown in Figure 37 from another angle;

[0088] Figure 39 is an exploded view of a local structure in the 3D view shown in Figure 20;

[0089] Figure 40 is an exploded view of a local structure in the 3D view shown in Figure 20. Detailed Implementation

[0090] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0091] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0092] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0093] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0094] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0095] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0096] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0097] Figure 1 shows a tabletop cutting tool that can be used for cutting. In this embodiment, the tabletop cutting tool is a table saw 100. The table saw 100 includes an output component for cutting wood, pipes, etc. In this application, the output component is specifically a generally circular saw blade 31.

[0098] To clearly illustrate the technical solution of this application, the terms "up," "down," "front," "back," "left," and "right" are defined as shown in Figure 1. It should be noted that, unless otherwise specified, "up," "down," "front," "back," and "left" in the following text refer to the state of the table saw 100 when placed on a base as shown in Figure 1. This base is not limited to a solid ground surface; it can also be any other worktable used to support the bottom of the table saw 100. Generally, users place the table saw 100 on the ground.

[0099] As shown in Figures 1 to 3, the table saw 100 includes a housing assembly 10, a worktable assembly 11, a support assembly 80, a limiting assembly 82, an indicating device 83, a cutting assembly 30, a power assembly, an energy assembly 50, a switch assembly 60, an angle adjustment assembly 70, and a dust collection assembly 20. The table saw 100 is generally cuboid. The housing assembly 10 has opposing front and rear side walls 102, a left side wall 103, and a right side wall 104, which are sequentially connected. The power assembly provides power to the cutting assembly 30, which is connected to the worktable assembly 11. The cutting assembly 30 cooperates with the worktable 11 to perform cutting. The dust collection assembly 20 is connected to the housing assembly and is used to collect the dust generated by the cutting assembly 30 during cutting.

[0100] The workbench assembly 11 is used to place the wooden board to be cut by the user. The workbench assembly 11 includes at least one workbench 12, the lower end of which includes several guide grooves 122. The housing assembly 10 is provided with a plurality of guide members 123 that can mate with the guide grooves 122. The guide grooves 122 are fitted around the outer periphery of the guide members 123, and the guide members 123 are used to restrict the direction of movement of the workbench 12. After the workpiece to be cut is subjected to force, the workbench 12 guides the workpiece to move toward the saw blade 31. As a possible implementation, the workbench assembly 11 includes a workbench 12 guide assembly 14, which is used to adjust the cutting length of the workpiece. An opening 121 extending substantially longitudinally is formed on the workbench 12, through which the saw blade 31 at least partially passes, i.e., the saw blade 31 is at least partially exposed above the workbench 12. The area of ​​the worktable 12 here is greater than or equal to 120,000 square millimeters and less than or equal to 200,000 square millimeters, so that the worktable 12 of the table saw 100 has enough space to set up other structures.

[0101] The housing assembly 10 is basically located at the lower end of the worktable 12. The housing assembly 10 forms the main outline of the table saw 100. The housing assembly 10 includes a motor 41 housing, wherein the power assembly is basically located within the receiving cavity 105 formed by the motor 41 housing. The housing assembly 10 also includes a saw blade cavity 13, in which the saw blade 31 is at least partially surrounded. In the vertical direction, the saw blade cavity 13 is located below the worktable 12. The saw blade cavity 13 includes a chip discharge port 131 and a chip outlet 132 arranged opposite to each other. The chip discharge port 131 is configured to connect with the opening 121, thereby facilitating the entry of chips and dust generated by the saw blade 31 during cutting into the saw blade cavity 13 by gravity, suction, etc. The chip outlet 132 is connected to the dust collection assembly 20 and is used to discharge chips and dust in the saw blade cavity 13 to the dust collection assembly 20. That is, the chip discharge port 131 is located at the upper end of the saw blade cavity 13, and the chip outlet 132 is located at the lower end of the saw blade cavity 13.

[0102] The support assembly 80 is located at the lower end of the workbench 12. This support assembly provides support for the table saw 100, allowing it to stand upright on the ground. The support assembly 80 includes several supports 81 for supporting the workbench 12, connecting rods 84 connected to the supports 81, and adapters 85 connecting the supports 81 and the connecting rods 84. Specifically, the support assembly 80 includes four supports 81, defined as the first support, second support, third support, and fourth support, with the four supports 81 having essentially the same structure and shape. There are also four connecting rods 84 connected to the supports 81, defined as the first connecting rod, second connecting rod, third connecting rod, and fourth connecting rod. Similarly, there are four adapters 85 connecting the supports 81 and the connecting rods 84, defined as the first adapter, second adapter, third adapter, and fourth adapter. Each adapter 85 includes three adapter interfaces for connecting the supports 81 and the connecting rods 84. One end of the first bracket connects to any one of the four corners of the workbench 12, and the other three brackets 81 are respectively located at the other three corners. The other end of the first bracket connects to the adapter on the first adapter. The remaining two adapters on the first adapter connect to one end of the first connecting rod and one end of the second connecting rod, respectively. The first bracket is arranged basically vertically, the first connecting rod is arranged basically horizontally, and the second connecting rod is arranged basically forward-backward. That is, one adapter 85 connects three brackets 81 or connecting rods 84 in different directions. Similarly, the other end of the second bracket connects to the other end of the second connecting rod and one end of the third connecting rod through the second adapter. The third connecting rod is arranged basically horizontally. The third bracket connects to the other end of the second connecting rod and one end of the third connecting rod through the third adapter. The third connecting rod is arranged basically forward-backward. The fourth bracket connects to the other end of the third connecting rod and the other end of the first connecting rod through the fourth adapter. The four connecting rods 84 are connected in a circumferential manner to ensure the stability of the connection at the lower end of the four supports 81, thereby ensuring that the table saw 100 is placed on the ground and that the table saw 100 will not easily tip over when it is cutting.

[0103] As another feasible implementation, the support assembly may consist of only four supports, which are located at the lower ends of the four corners of the workbench. This can be understood as one end of the four supports abutting against the four corners of the workbench, and the other end of the four supports abutting against the ground. In this way, the user only needs four supports to support the entire table saw.

[0104] The limiting device 82 is used to restrict the movement of the table saw 100 relative to the ground when it is cutting the workpiece. The limiting device 82 is mounted on the connecting rod 84 and is detachably fixed to the connecting rod 84 or integrally formed. The limiting device 82 includes a support component 821 and a limiting component 822. The support component 821 is used to contact the ground and the support assembly 80, and the limiting component 822 is used to restrict the movement between the support assembly 81 and the ground.

[0105] Please refer to Figure 34 for another feasible implementation of the support assembly. The support assembly includes a first support rod 86, a second support rod 87, a first connecting pipe 88, a second connecting pipe, and four adapters connecting the first connecting pipe 88 and the second connecting pipe to the first support rod 86 and the second support rod 87. The first support rod 86 and the second support rod 87 are respectively connected to the worktable. The first support rod 86 and the second support rod 87 are roughly U-shaped. The structures of the first support rod 86 and the second support rod 87 are arranged in a support-supporting manner. For the sake of simplicity, the first support rod 86 is used as an example. The first support rod 86 is U-shaped, and the two upper ends of the U-shape are respectively fixedly connected to the worktable 12. The first adapter 861 and the second adapter are respectively installed at the two corners of the lower end of the first support rod 86. Similarly, a third adapter and a fourth adapter are installed at the two lower corners of the second support rod 87. The first adapter 861, second adapter, third adapter, and fourth adapter are each provided with a connector; that is, the first adapter 861 has a first connector 862, the second adapter has a second connector, the third adapter has a third connector, and the fourth adapter has a fourth connector. The two ends of the first connecting tube 88 can be inserted into the first connector 862 and the third connector, respectively, thus connecting the first connecting tube 88 to the first support rod 86 and the second support rod 87. Likewise, the two ends of the second connecting tube can be inserted into the second connector and the fourth connector, respectively, thus connecting the second connecting tube to the first support rod 86 and the second support rod 87. The connection between the first connecting tube 88 and the second connecting tube and the first support rod 86 and the second support rod 87 effectively ensures the stability of the connection between the support components.

[0106] The four adapters have basically the same structure; therefore, only the specific structure of one adapter will be described in detail here. Taking the first adapter 861 as an example, the first adapter 861 includes a first adapter housing 863 and a second adapter housing 864 assembled together, as well as an anti-slip component located at the bottom of the first adapter 861 for direct contact with the ground. The first adapter housing 863 and the second adapter housing 864 are connected to the first support rod 86 by one or more of the following methods: screws, snaps, riveting, etc. Specifically, the first adapter housing 863 and the second adapter housing 864 can be connected by snaps, that is, both the first adapter housing 863 and the second adapter housing 864 have snap-fit ​​parts that can cooperate with each other. When the two housings are brought close together and pressed together, the first adapter housing 863 and the second adapter housing 864 are assembled and locked onto the first support rod 86. The first adapter 861 has a first insertion interface 862, and the first insertion interface 862 has a screw hole that penetrates the first adapter housing 863 and the second adapter housing 864. One end of the first connecting tube 88 is inserted into the first insertion interface 862 to achieve pre-positioning, and then the screw is inserted into the screw hole until it is locked with the first connecting tube 88, thereby ensuring that the first connecting tube 88 is fixed to the first support rod 86.

[0107] In one specific implementation, the limiting device 82 is detachably connected to the bracket 81. The support assembly 821 is detachably mounted on the bracket 81. The support assembly 821 has two states relative to the ground: a free state and a limited state. When the support assembly 821 is in the free state, the table saw 100 is positioned directly on the ground; when the support assembly 821 is in the limited state, the table saw 100 is attached to the ground. The free state and the limited state can be switched. The limiting assembly 822 is configured to switch the support assembly 821 between these two states.

[0108] The support assembly 821 includes a support member 8211 and a seal member 8212. The support member 8211 is configured to be detachably connected to the bracket 81, and the seal member 8212 is located at the lower end of the support member 8211. A through hole 8213 is formed on the support member 8211 for inserting a connecting rod 84. When the user needs to install the limiting device 82 on the table saw 100, the user simply places the support member 8211 onto the connecting rod located at the bottom of the table saw 100 to install the limiting device 82. When the user no longer needs the limiting device 82, the user simply removes the support member 8211 from the connecting rod 84 to remove the limiting device 82 from the table saw 100. The support member 8211 and the connecting rod 84 can be connected by screws or by magnetic attraction, etc. The specific connection method between the support member 8211 and the connecting rod 84 is not specified here, as long as the support member 8211 can be detachably connected to any one of the connecting rods 84.

[0109] The support member 8211 is movable relative to the seal member 8212. The limiting assembly 822 includes a connecting rod 8221, a switching element 8222, and a stop element 8223. The connecting rod 8221 is used to connect the support element 8211, the sealing element 8212, the switching element 8222, and the stop element 8223. The support element 8211, the sealing element 8212, the switching element 8222, and the stop element 8223 are distributed sequentially in the vertical direction. One end of the sealing element 8212 is in contact with the ground, and the other end of the sealing element 8212 is in contact with the support element 8211. The four sides of the sealing element 8212 are pressed against the ground by the support element 8211 located on the upper side. The bottom of the support element 8211 is concave upward to form a sealing cavity. When the sealing element 8212 is configured to move relative to the support element 8211, the sealing cavity of the support element 8211 is in close contact with the sealing element 8212, that is, a negative pressure is formed in the sealing cavity, thereby tightly adsorbing the sealing element 8212 onto the ground, thereby keeping the table saw 100 relatively fixed to the ground. The seal 8212 is nested around the outer periphery of the support 8211. The upper part of the seal 8212 protrudes upward and is at least partially located inside the sealing cavity. The outer periphery of the upper part of the seal 8212 is spaced apart from the inner wall of the sealing cavity. It can be understood that the seal 8212 abuts against the lower end of the support 8211, and there is a certain gap between the upper part of the seal 8212 and the inner wall of the sealing cavity. The connecting rod 8221 is fixedly connected to the seal 8212. The connecting rod 8221 can be driven by the switching component 8222 to move up and down. During the up and down movement of the connecting rod 8221, the seal 8212 will also move up and down. Since the lower end of the support 8211 is in contact with the seal 8212, the air inside the gap will be squeezed during the upward movement of the seal 8212, thereby forming a negative pressure. This allows the seal 8212 to fit tightly against the ground, thus ensuring that the table saw 100 remains relatively fixed to the ground when the user uses the table saw 100 for cutting.

[0110] The switching component 8222 is rotatable relative to the support component 8211 around the connecting rod 8221. The switching component 8222 is mounted on the connecting rod 8221 and can drive the connecting rod 8221 to move up and down. The support component 8211 has an adapter, a guide, and a limiting part. The switching component 8222 has a switching part that cooperates with the adapter. When the switching part abuts against the adapter, the support component 821 switches to a limiting state; when the switching part separates from the adapter, the support component 821 switches to a free state. Specifically, the switching part and the adapter are oppositely arranged protrusions. The guide is connected to the switching part and extends upwards in a curve around the connecting rod 8221 until it connects with the switching part. The limiting part is located on the other side of the switching part and is used to restrict the switching component 8222 from continuing to rotate; that is, the guide and the limiting part are respectively located on both sides of the switching part. Understandably, the adapter and guide abut against each other, and the switching member 8222 is driven by the user to rotate. The adapter rotates upward under the guidance of the guide until it abuts against the limiting member. At this time, the switching member 8222 stops rotating. The adapter and the switching member abut against each other. As the switching member moves upward, the connecting rod connected to the switching member 8222 is lifted upward, thereby driving the sealing member 8212 to move upward. This allows the sealing member 8212 to be tightly fitted to the ground, realizing the switch from the free state to the limited state.

[0111] The working environment for the table saw 100 is very complex. Users may place it on wooden floors, tile floors, or marble floors. This results in varying friction requirements depending on the surface. For example, on relatively abrasive surfaces, sufficient friction between the support 81 and the ground allows the table saw 100 to remain relatively fixed during cutting. However, on surfaces with insufficient friction, the table saw 100 may move along with the workpiece, leading to a cut that deviates from the expected precision. The limiting device 82 effectively ensures the relative fixation between the table saw and the ground, reducing the risk of danger or reduced accuracy caused by movement.

[0112] As another feasible implementation, the limiting device 82 includes only the support member 8211 and the sealing member 8212 of the above-described structure. As another feasible implementation, the limiting device 82 includes only the sealing member 8212, which is fixedly connected to the bracket or integrally formed. In the above-described feasible implementations, the sealing member 8212 can be made of rubber.

[0113] The opening 121 of the workbench 12 has a similar shape to the chip discharge port 131, and the area of ​​the opening 121 of the saw blade of the workbench 12 is smaller than the area of ​​the chip discharge port 131 of the saw blade cavity 13. The chip discharge port 131 is connected to the opening 121. When the saw blade 31 is cutting, there will inevitably be a lot of dust. Setting the area of ​​the chip discharge port 131 to be larger than the area of ​​the opening 121 can better collect the dust generated by the saw blade 31 and reduce the amount of dust in the working environment when the user is cutting.

[0114] The cutting assembly 30 includes a saw blade 31 connected to an output shaft 32. The saw blade 31 is configured to be driven by a power tool to rotate about an output axis 311 in a first direction 312. The saw blade 31 is at least partially disposed within a saw blade cavity 13. The housing assembly 10 also includes a main connecting plate 109 connected to the saw blade cavity 13, connected to a worktable 12, and rotatable relative to the worktable 12. The saw blade cavity 13 includes a first saw blade housing 133 and a second saw blade housing 134, which are assembled to form the saw blade cavity 13. The first saw blade housing 133 and the second saw blade housing 134 are fixedly connected by screws and then connected to the main connecting plate 109. The saw blade cavity also includes a third saw blade housing 135, which is fixedly mounted to the first saw blade housing 133. The first saw blade housing 133 has a mounting hole that exposes the output shaft 32, allowing the user to assemble and disassemble the saw blade 31. After the third saw blade housing 135 is mounted onto the first saw blade housing 133, it completely seals the mounting hole, forming a complete enclosure on both sides of the saw blade cavity 13. This prevents air leakage during dust collection by the table saw 100, thus avoiding any impact on the dust collection efficiency. The third saw blade housing 135 and the first saw blade housing 133 are detachably fixedly connected; specifically, the connection can be a snap-fit ​​connection, a screw connection, a sliding groove connection, etc. The power assembly includes at least one motor 41, which provides power to the saw blade 31. The motor 41 includes a motor shaft 411 that can rotate around a motor axis 412. The motor shaft 411 transmits power to the output shaft 32 via a large gear 431. It can be understood that the motor shaft 411 transmits power to the large gear 431 within the gearbox 43. The large gear 431 is connected to the output shaft 32, meaning the large gear 431 transmits power to the output shaft 32, thereby driving the output shaft 32 to rotate. The output shaft 32 can then drive the saw blade 31 to rotate in a direction substantially parallel to the output axis 311. The table saw 100 includes a motor 41, whose motor shaft 411 can simultaneously drive the output shaft 32 and the fan 22. The table saw 100 also includes a gear disposed between the motor shaft 411 and the output shaft 32. The gear and the fan 22 are respectively disposed at both ends of the motor shaft 411 along the direction extending along the battery shaft. One end of the motor shaft 411 meshes with the gear, which is connected to the output shaft 32. The saw blade 31 is mounted on the output shaft 32. As another feasible implementation, the table saw 100 can include multiple motors 41.

[0115] The drive circuit is configured to supply electrical energy to at least one motor 41.

[0116] A switch assembly 60 is mounted on the housing assembly 10. The switch assembly 60 controls the start or stop of the motor 41. The switch assembly 60 includes a start switch 61 positioned between the DC power interface 106 and the drive circuit. The motor 41 can only start when the user activates the start switch 61. When the start switch 61 is disconnected, no current flows through the drive circuit, which can be understood as the motor 41 stopping. Additionally, the switch assembly 60 may include a safety switch. To ensure user safety, the drive circuit allows the energy component 50 to supply power to the motor 41 only when the user activates the safety switch and then activates the start switch 61. When the start switch 61 is disconnected, the energy component 50 cannot supply power to the motor 41, meaning no current flows through the drive circuit. This design prevents accidental activation by the user and ensures safety. The start switch 61 has different positions. In this embodiment, the start switch 61 has at least a stop position, an energy-saving position, and a high-speed position. When the start switch 61 is in the stop position, the motor 41 does not start, and the table saw 100 is in an off state. When the start switch 61 is in the energy-saving mode, the motor 41 rotates at a lower speed. When the start switch 61 is in the high-speed mode, the motor 41 rotates at a higher speed.

[0117] The indicating device 83 is used to display the current working status of the table saw 100. The indicating component includes a detection component 831, a display screen 832, and a controller. The detection component 831 is configured to detect the working status of the table saw 100. The display screen 832 is located below the worktable 12. The controller is communicatively connected to both the detection component 831 and the display screen 832.

[0118] The display screen 832 is disposed on the side wall of the housing assembly 10, and can be disposed on any side wall of the housing assembly 10. In this embodiment, the display screen 832 is disposed on the rear side wall 102. When the user is using the table saw 100 to cut, they generally stand behind the table saw 100 and hold the workpiece to be cut. Therefore, disposing the display screen 832 on the rear side wall 102 makes it convenient for the user to observe the current working status of the table saw 100 while cutting. The display screen 832 includes an icon display area 834 for the user to observe and a power switch 835 for supplying power to the icon display area 834. After the power switch 835 is activated, the icon display area 834 is powered on, and a preset icon appears. When the working status meets the preset conditions, the display screen 832 displays the preset icon in the icon display area 834.

[0119] The icon display area 834 is at least partially located on the first plane P1, and the rear sidewall 102 is at least partially located on the second plane P2. The angle formed by the inclined intersection of the first plane P1 and the second plane P2 is greater than or equal to α15 degrees and less than or equal to 75 degrees. When the angle between the first plane P1 and the second plane P2 is set within the above range, the icon display area 834 is within the area that can be directly viewed by the user when working. That is, the user can directly observe the icon display area 834 without changing their standing position when cutting, further facilitating the user's operation of the table saw 100. The start switch 61 can be set at any position on the housing assembly 10. For the convenience of user management and operation, the start switch 61 can also be set near the display screen 832. In this embodiment, the battery pack 51 can directly supply power to the power switch 835.

[0120] The indicator device 83 is also equipped with a fault indication structure. When the table saw 100 malfunctions, the indicator device 83 will issue a visual reminder, namely, displaying a fault indication icon on the display screen 832. In this embodiment, both the fault indication icon and the preset icon for displaying the working status are displayed on the icon display area 834. The display screen 832 is an LCD screen, meaning that both the fault indication icon and the preset icon for displaying the working status are displayed on the LCD screen for the user to observe.

[0121] The icon display area 834 includes a maintenance indicator area 8341. When the controller detects a MOS short circuit fault, the maintenance indicator area 8341 displays a maintenance indicator. Under normal circumstances, the indicator light will illuminate when the controller detects a power switch 835 fault, a MOS damage fault, or a failure to start (if no other fault occurs 500ms after pressing the start switch 61, and the speed remains below 4000rpm). When the user sees the maintenance indicator on the maintenance indicator area 8341 illuminated, they can directly know that the table saw 100 needs equipment maintenance and inspection. When the table saw 100 is functioning normally, the maintenance indicator will turn off.

[0122] The icon display area 834 includes an over-temperature indicator area 8342. When the controller detects an over-temperature fault in the battery pack, the over-temperature indicator area 8342 displays the over-temperature indicator. The over-temperature indicator lights up when the controller detects an over-temperature signal from the battery pack 51. The over-temperature indicator turns off when the battery pack 51 is operating normally.

[0123] The icon display area 834 includes a fault indicator area 8343. When the controller detects an over-temperature fault in the MOS transistor, the fault indicator area 8343 displays a fault indicator. Specifically, the indicator lights up when the controller detects that the MOS temperature is above 85°C. Once the fault indicator is lit, the controller sends a stop signal, instructing motor 41 to stop. The indicator turns off when the MOS temperature is below 80°C.

[0124] The icon display area 834 also includes a speed display area 8344, which displays a number or icon corresponding to the current speed setting. Specifically, the speed display area 8344 is a gear-shaped icon. Normally, when the start switch 61 is in the off position, the table saw 100 is not powered on, and the gear-shaped icon in the speed display area 8344 does not rotate. When the start switch 61 is in the energy-saving position, the gear-shaped icon displays three gears and rotates. When the start switch 61 is in the high-speed position, the gear-shaped icon displays six gears and rotates. Users can directly determine the current operating speed of the table saw 100 by observing the gear-shaped icon in the speed display area 8344.

[0125] The icon display area 834 also includes a battery pack 51 power display area 8345, which displays power icons corresponding to the current power level. In this application, there are eight power icons. When the current power level of the battery pack 51 is greater than or equal to 90% of the battery pack's rated power, all power icons are lit. When the current power level of the battery pack 51 is greater than or equal to 85% but less than 90% of the battery pack's rated power, seven power icons are lit. When the current power level of the battery pack 51 is greater than or equal to 80% but less than 85% of the battery pack's rated power, six power icons are lit. When the current power level of the battery pack 51 is greater than or equal to 75% but less than 80% of the battery pack's rated power, five power icons are lit. When the current battery level of battery pack 51 is greater than or equal to 70% but less than 75% of its rated capacity, four battery level icons will light up. When the current battery level of battery pack 51 is greater than or equal to 65% but less than 70% of its rated capacity, three battery level icons will light up. When the current battery level of battery pack 51 is greater than or equal to 60% but less than 65% of its rated capacity, two battery level icons will light up. When the current battery level of battery pack 51 is greater than or equal to 55% but less than 60% of its rated capacity, one battery level icon will light up. Users can determine the remaining battery level of battery pack 51 by the number of lit battery level icons, so that they can replace battery pack 51 as soon as possible, thereby ensuring the normal operation of the table saw 100.

[0126] The icon display area 834 also includes a dust full indicator area 8346. When the remaining capacity of the dust storage component 23 is less than a preset threshold, the dust full indicator area 8346 displays a dust full indicator. A detection component 831831 capable of detecting dust collection height is placed inside the dust storage box 232. If the signal output by the detection component 831831 is higher than a preset threshold for a sustained period, it is determined that the dust storage box 232 is full. When the dust storage box 232 is determined to be full, the controller communicates with the LCD screen and controls the LCD screen to display the corresponding dust full indicator. After the user cleans the dust storage box, the detection component 831831 detects the dust collection height inside the dust storage box 232. If the signal output by the detection component 831831 is lower than a preset threshold for a sustained period, it is determined that the dust storage box 232 is empty, and the controller controls the LCD screen to turn off the dust full indicator. When the dust full indicator is lit, the motor 41 continues to run.

[0127] The detection component 831831 includes at least one of a capacitive sensor, a laser rangefinder, and a pressure sensor to detect the remaining capacity in the dust storage component.

[0128] In some embodiments, when the table saw 100 malfunctions, in addition to displaying a fault indicator on the display screen 832, the indicating device 83 will issue an audible alert. Specifically, a buzzer is connected to the table saw 100; when the table saw 100 malfunctions, the buzzer will sound simultaneously with the display screen 832 displaying the fault indicator, thereby alerting the user. In some other embodiments, when the table saw 100 malfunctions, the indicating device 83 will issue an audible alert; specifically, a buzzer is connected to the table saw 100; when the table saw 100 malfunctions, the buzzer will sound.

[0129] The energy component 50 provides DC power to the power component. Specifically, the housing component 10 has at least one DC power interface 106. The DC power interface 106 can be mechanically or electrically connected to the battery pack 51. The DC power interface 106 is also configured to be electrically connected to the drive circuit. As an optional implementation of the energy component 50, the energy component 50 is the battery pack 51. In one connection method between the energy component 50 and the housing component 10, the battery pack 51 is fixedly installed inside the housing component 10. The user can charge the battery pack 51 through the DC power interface 106 until it is fully charged, after which it can operate. In another connection method, the battery pack 51 is detachably connected to the housing component 10. Specifically, the DC power interface 106 is a battery pack 51 mounting part 107, on which the user installs the battery pack 51. As another implementation of the DC power interface 106, the DC power interface 106 can be electrically connected to a DC adapter, meaning that the user can convert AC power to DC power. Here, the energy component 50 can be an AC-to-DC adapter. Powering the table saw 100 with DC power is more environmentally friendly and has lower operating costs compared to the traditional AC power supply. It also makes it easier for users to move the table saw 100, without being limited by the length of the power cord. From a long-term perspective, using the battery pack 51 for power is more convenient and safer.

[0130] The dust collection assembly 20 is connected to the workbench assembly 11. The dust collection assembly 20 includes a dust storage component 23 and a fan 22. The fan 22 is connected to the motor shaft 411, meaning that when the motor shaft 411 rotates, it drives the fan 22 to rotate as well. When the fan 22 rotates, it forms an airflow path, which guides the airflow to the dust storage component 23. In the vertical direction, the dust storage component 23 is located at the lower end of the workbench 12, and further, the dust storage component 23 is located at the lower end of the motor 41.

[0131] Angle adjustment component 70 is used to adjust the cutting angle of saw blade 31. Specifically, angle adjustment component 70 allows the saw blade 31 to rotate relative to the worktable 12. When the user adjusts the angle of the saw blade 31, the dust collection component 23 is configured to rotate accordingly, meaning the dust collection component 23 rotates together with the saw blade 31. Alternatively, when the saw blade 31 rotates, the dust collection component 23 may remain stationary.

[0132] As shown in Figures 20 to 30 of the instruction manual, the angle adjustment component 70 is used to adjust the cutting angle of the saw blade 31, that is, the cutting angle of the saw blade 31 can be adjusted through the angle adjustment component 70. Through the angle adjustment of the angle adjustment component 70, the table saw 100 has at least several cutting modes. The table saw 100 includes a first cutting mode and a second cutting mode. When the table saw 100 is in the first cutting mode, the output shaft 32 of the saw blade 31 is substantially perpendicular to the vertical direction, and the output shaft 32 is substantially parallel to the working plane formed by the worktable 12. At this time, the cutting angle of the table saw 100 is defined as 0 degrees, and the position of the output shaft 32 at this time is called the default position. When in the second cutting mode, the output shaft 32 of the saw blade 31 is inclined to intersect the vertical direction. The rotation angle of the table saw 100 at this time depends on the cutting angle currently required by the user. The position of the output shaft 32 at this time is called the tiltable position, and the angle between the tiltable position and the default position is greater than or equal to 45 degrees. That is, the user can switch the cutting angle of the saw blade 31 between the tiltable position and the default position. For the convenience of this application, when the table saw 100 is in the second cutting mode, the output shaft 32 of the saw blade 31 intersects with the vertical direction at approximately 45 degrees, and the cutting angle of the table saw 100 is defined as 45 degrees.

[0133] The angle adjustment assembly 70 includes an adjustment element 71, a drive shaft 72, and a main connecting plate 109. The adjustment element 71 is for the user to hold, thereby adjusting the cutting angle of the table saw 100. The drive shaft 72 connects the main connecting plate 109 and the adjustment element 71. That is, the user drives the adjustment element 71 to rotate, thereby driving the main connecting plate 109 to rotate, thus switching the cutting angle of the table saw 100. The main connecting plate 109 is rotatably connected to the lower end of the worktable 12. The motor 41, as well as the motor housing, saw blade cavity 13, and dust collection component 23 sleeved on the outside of the motor 41, are all fixedly connected to the main connecting plate 109. With this configuration, when the user drives the adjustment element 71 to rotate, the main connecting plate 109 rotates accordingly, thereby driving the motor 41, motor housing, saw blade cavity 13, dust collection component 23, and other components to rotate together. Understandably, when the output shaft 32 of the saw blade 31 tilts, the dust collection box 232 tilts synchronously. Furthermore, since the top cover 231 is connected to the main connecting plate 109 and the dust collection box 232, when the output shaft 32 of the saw blade 31 tilts, the top cover 231 and the dust collection box 232 tilt synchronously.

[0134] The axis lock structure 73 is used to safely stop the rotation of the saw blade 31, thereby facilitating the user to replace the saw blade 31. The user typically replaces the saw blade 31 when the table saw 100 is in the first cutting mode. The axis lock structure 73 is located adjacent to the saw blade 31 and includes an operation button 731, a connecting pin 732, a return spring 733, an axis lock component 734, and a base. The operation button 731 is mounted on the worktable 12, allowing the user to drive it. Alternatively, the worktable 12 has a first hole 138 through which the operation button 731 can pass. The operation button 731 is mounted on the worktable 12, and in the vertical direction, it is either lower than or flush with the working plane of the worktable 12. The base is fixedly connected to the gearbox 4343 or integrally formed. In this embodiment, the gearbox 43 is integrally formed with the base. A through hole is formed on the base that passes through the gearbox 43. Connecting holes are formed on both radial sides of the base that communicate with the through hole. The connecting holes are roughly oblong. The shaft locking member 734 is disposed in the through hole. The shaft locking member 734 is configured to couple with the large gear. When the shaft locking member 734 is coupled with the large gear 431, the large gear will immediately stop rotating. At this time, the output shaft connected to the large gear also stops rotating, thereby keeping the saw blade 31 fixed. The shaft locking member 734 has a second hole through which the connecting pin 732 can pass. At the same time, the connecting pin 732 can also pass through the connecting hole, that is, the connecting pin 732 can connect the base and the shaft locking member 734. The return spring 733 is sleeved on the outer periphery of the base. One end of the return spring 733 abuts against the gearbox 43, and the other end of the return spring 733 abuts against the connecting pin 732. Because the connecting hole has a certain size in the length direction, when the return spring 733 is installed on the base, the return spring 733 will give the connecting pin 732 a holding force, thereby causing the connecting pin 732 to drive the shaft lock 734 to the farthest end away from the gearbox 43.

[0135] When the user needs to replace the saw blade 31, the user will switch the table saw 100 to the first cutting mode. The user presses down the operation button 731, which transmits force to the shaft locking component 734. The shaft locking component 734 moves towards the large gear 431 under the force. The shaft locking component 734 drives the connecting pin 732 to move towards the large gear 431. As the connecting pin 732 approaches the large gear, it connects to the bias return spring 733. The return spring 733 stores force and deforms. The shaft locking component 734 continues to move until it couples with the large gear. At this time, the saw blade 31 stops rotating. The user can replace the saw blade 31 or check its condition in the current state. After the user completes the inspection or replacement of saw blade 31, the user releases the force applied to the operation button 731. At this time, the return spring 733 returns to its original deformation and pushes the connecting pin 732 away from the large gear until the connecting pin 732 abuts against the farthest end of the connecting hole, and then the shaft lock 734 stops moving. The above process is the operation process and motion principle of the shaft lock structure 73.

[0136] When the user needs to perform angled cutting, the user will switch the table saw 100 to the second cutting mode. At this time, except for the operation button 731 connected to the worktable 12, which remains in its original position, the connecting pin 732, return spring 733, shaft lock 734, base, etc., all rotate synchronously with the saw blade 31. That is, the shaft lock structure 73 of this application locks the saw blade 31 by locking the large gear 431. Unlike the traditional shaft lock structure 73, this application's structure does not increase the size of the opening 121, thus avoiding the situation where the opening 121 is too large, resulting in insufficient suction of the dust collection fan 22 and a poor dust collection effect of the table saw 100. In addition, regardless of the cutting mode of the table saw 100, the operation button 731 is always connected to the worktable 12 and will not move with the saw blade 31. That is, the operation button 731 always tightly covers the second hole, so the dust, wood chips and other particles generated by the worktable 12 during cutting will not enter the gearbox 43 through the second hole, thereby ensuring the stability of the internal structure of the gearbox 43.

[0137] The table saw 100's dust collection assembly 20 has at least two operating modes: a first mode and a second mode. The table saw 100 can switch between the first and second modes. When the dust collection assembly 20 is in the first mode, it collects dust and other particles generated during saw blade 31 cutting. When the dust collection assembly 20 is in the second mode, an external pipe 26 connects to the dust collection assembly 20, allowing it to collect dust or particulate matter from the external environment. By setting the table saw 100 to have two dust collection modes, the user can select the appropriate mode based on the current working environment, facilitating user operation.

[0138] As shown in Figures 6 to 10 and Figures 16 to 19, the guide rail assembly 14 includes two opposing movable members 141, a guide rail member 142, and a locking assembly 143. The two movable members 141 are defined as the first movable member 1411 and the second movable member 1412, respectively. The two movable members 141 are respectively disposed on both sides of the worktable 12, and the movable members 141 are slidably connected to the worktable 12. The guide rail member 142 is used to abut against the workpiece to be cut, and the guide rail member 142 cooperates with the saw blade 31 to adjust the required length of the workpiece to be cut. The guide rail member 142 is connected to one end of each of the two movable members 141. This can be understood as follows: one end of the guide rail member 142 is connected to one end of the first connecting member, and the other end of the guide rail member 142 is connected to one end of the second connecting member. The other end of the first connecting member is connected to one side of the worktable 12, and the other end of the second connecting member is connected to one side of the worktable 12. The locking assembly 143 is used to fix the moving part 141 and the worktable 12. When the moving part 141 moves the guide rail 142 to the desired position, the locking assembly 143 locks the moving part 141 and the worktable 12. When the user wants to cut a certain length of workpiece, he / she first moves the guide rail 142 to the desired length position via the moving part 141, fixes the guide rail 142 with the locking assembly 143, then places the workpiece to be cut on the worktable 12, with one end of the workpiece abutting against the guide rail 142, and then pushes the workpiece to be cut so that the saw blade 31 approaches the workpiece and is cut. At this time, the workpiece between the saw blade 31 and the guide rail 142 is the workpiece required by the user. The above operation is repeated for the remaining workpieces until the required number of workpieces are completed.

[0139] The locking assembly 143 is connected to the worktable 12. The locking assembly 143 includes a fixing member 1431, a locking member 1432, and a supporting member 1433. The fixing member 1431 is connected to the worktable 12, and the locking member 1432 is connected to the fixing member 1431 and can move relative to the fixing member 1431. The supporting member 1433 is located at the lower end of the worktable 12 and can move relative to the workpiece. During the movement of the supporting member 1433, it can abut against and restrict the movement of the moving member 141. The locking member 1432 can be driven by the user to move, and during its movement, the locking member 1432 can drive the supporting member 1433 to move. There are two abutment members 1433, specifically a first abutment member 1434 and a second abutment member 1435. The first abutment member 1434 and the second abutment member 1435 are respectively disposed at both ends of the locking member 1432, so that the locking member 1432 can simultaneously drive the abutment members 1433 to move during the movement of the locking member. During the movement of the driving member, the abutment member 1433 has at least a locked state and an unlocked state. When the abutment member 1433 is in the locked state, the first abutment member 1434 and the second abutment member 1435 abut against the first moving member 1411 and the second moving member 1412 respectively, thereby preventing the first moving member 1411 and the second moving member 1412 from driving the guardrail member 142 to move relative to the worktable 12. When the abutment 1433 is in the unlocked state, the abutment force between the first abutment 1434 and the second abutment 1435 and the first moving member 1411 and the second moving member 1412 disappears. At this time, the first moving member 1411 and the second moving member 1412 can reciprocate relative to the worktable 12. The abutment 1433 has a rod-shaped structure. One end of the abutment 1433 cooperates with the moving member 141, and the other end cooperates with the locking member 1432. Driven by the locking member 1432, the abutment 1433 can move within the worktable 12.

[0140] This device drives the locking member 1432 to rotate. The locking member 1432 includes two base parts 1436, two opposing cam parts 1437, an operating part 1438, and two stop parts 1439. The base parts 1436 and cam parts 1437 are fixedly connected. During rotation, both the base parts 1436 and cam parts 1437 can cooperate with the first abutment 1434 and the second abutment 1435. When the abutment 1433 contacts the base part 1436, the moving member 141 is in an unlocked state; when the abutment 1433 contacts the cam part 1437, the moving member 141 is in a locked state. The operating part 1438 is used for user operation. The operating part 1438 is fixedly connected to or integrally formed with the cam parts 1437, base parts 1436, and stop parts 1439. The user can apply force to rotate the locking member 1432, thereby switching the state of the moving member 141. A stop is located at the end of the cam portion 1437, which can also be considered as the connection between the base portion 1436 and the cam portion 1437. By setting the stop, the user is restricted from continuing to rotate, keeping the moving part 141 in the unlocked state. This locking assembly 143 has a simple structure and is easy to operate. Both the cam portion 1437 and the base portion 1436 are arcs with different curvatures.

[0141] As a specific operating method, when the movable part 141 is in the unlocked state, the base part 1436 and the supporting part 1433 are close together. The user applies force to the locking part 1432 by gripping it. The locking part 1432 rotates under the force, and the cam part 1437 gradually moves closer to the supporting part 1433 and then contacts it. The cam part 1437 on one side pushes the first supporting part 1434 to move closer to the first movable part 1411. Similarly, the cam part 1437 on the other side pushes the second supporting part 1435 to move closer to the second movable part 1412. As a result, the greater the angle of rotation of the cam part 1437, the more the first supporting part 1434 contacts and supports the first movable part 1411. Similarly, the second supporting part 1435 contacts and supports the second movable part 1412. Alternatively, the cam portion 1437 provides a thrust to the first abutment 1434, causing the first abutment 1434 to abut against the first moving member 1411. Similarly, the cam portion 1437 provides a thrust to the second abutment 1435, causing the first abutment 1434 to abut against the first moving member 1411. At this time, the moving member 141 switches from the unlocked state to the locked state. Likewise, when the user wants to switch the moving member 141 from the locked state to the unlocked state, the user rotates the locking member 1432 in the opposite direction. The cam portion 1437 moves away from the abutment 1433, and the base portion 1436 moves closer to the abutment 1433 and then towards the base, until the abutment 1433 contacts the stop member. The user then stops rotating, and the force between the abutment 1433 and the moving member 141 disappears, allowing the moving member 141 to slide automatically.

[0142] As shown in Figures 1 to 4, the battery pack 51 can be detached from the housing assembly 10 by the user, and the DC power interface 106 serves as the mounting part 107 for the battery pack 51. In other words, the battery pack 51, which powers the table saw 100, is detachably mounted on the housing assembly 10. This allows the user to remove the battery pack 51 for charging when its power is low, eliminating the need to directly charge the table saw 100, thus improving operational convenience. Furthermore, when the battery pack 51 is damaged, the user can easily remove it for repair or replacement, avoiding the need to repair or replace a table saw 100 with a non-removable battery pack, thereby reducing future maintenance costs. Moreover, the detachable battery pack 51 allows for differentiated design for products on different platforms or in different regions, making quality control of the entire table saw 100 easier and simplifies manufacturing. Alternatively, the battery pack 51, detached from the housing assembly 10, can power power tools. The battery pack 51, detached from the table saw 100, can provide power to the power tool, or the battery pack 51 on the power tool can be installed on the table saw 100 to power it. In other words, the battery pack 51 in this application can be used not only in the table saw 100 but also in other power tools, thus improving the compatibility of the battery pack 51 and the table saw 100's ability to use it. This way, when the table saw 100 is not in use, the user can easily remove the battery pack 51 and use it on other power tools, avoiding resource waste and reducing operating costs. Alternatively, when the user needs to use the table saw 100, they can borrow the battery pack 51 from other power tools as a power source. As some feasible implementation methods, the power tools can be polishers, angle grinders, electric drills, circular saws, etc.

[0143] The battery pack 51 includes multiple battery cells connected in series, parallel, or a combination of series and parallel. Multiple battery cells are integrated within a single battery casing to form a whole. Specifically, each battery cell can be a lithium-ion battery cell. In one implementation, the battery pack 51 is a single unit; that is, the table saw 100 is electrically connected to the drive circuit via a single battery pack 51, thereby enabling the drive circuit to supply electrical energy to the motor 41.

[0144] In another embodiment of the energy component 50, the number of battery packs 51 is at least two, meaning that at least two battery packs 51 can be mounted on the battery pack mounting part 107. Multiple battery packs 51 connected in series form a larger battery pack group, or multiple battery packs 51 connected in parallel form a larger battery pack group and are then electrically connected to the drive circuit, thereby enabling the drive circuit to supply power to the motor 41. In another embodiment, the battery pack mounting part 107 can mount multiple battery packs 51, wherein the battery packs 51 are connected in parallel. When only one battery pack 51 is connected to the battery pack mounting part 107, the battery pack 51 is electrically connected to the drive circuit to provide power. Alternatively, multiple battery packs 51 can be mounted on the mounting base, and the battery packs 51 are connected in parallel to form a larger battery pack group, which then supplies power to the motor 41. It should be noted that in this application, the number of battery packs 51 is not limited, as long as the battery packs 51 supply power to the motor 41. This can also be understood as at least two battery packs 51 mounted on the battery pack mounting part 107 being discharged in series, or at least two battery packs 51 mounted on the battery pack mounting part 107 being discharged in parallel.

[0145] In the vertical direction, when the battery pack 51 is installed on the battery pack 51 mounting part 107, the battery pack 51 is lower than the worktable 12. This ensures that the battery pack 51 will not interfere with the user's cutting while the motor 41 is running. The battery pack 51 can be installed on the side wall of the table saw 100. The battery pack 51 can be installed on any one or several side walls of the table saw 100; that is, the battery pack 51 mounting part 107 can be formed on the front side wall, rear side wall 102, left side wall 103, or right side wall 104. Of course, the battery pack 51 mounting part 107 can also be located on adjacent or opposite side walls. The battery pack 51 is configured to be pluggable and removable by the user, making operation more convenient and allowing for more accurate positioning of the battery pack 51. The battery pack 51 can be inserted in multiple directions. Specifically, the battery pack 51 can be inserted into the battery pack 51 mounting portion 107 in a front-to-back direction, a left-to-right direction, or a vertical direction. The specific insertion direction of the battery pack 51 is not limited, as long as the battery pack 51 is lower than the worktable 12 when inserted into the battery pack 51 mounting portion 107.

[0146] The DC power interface 106 is an open battery pack 51 mounting section 107. The battery pack 51 is detachably connected to the battery pack 51 mounting section 107. "Open" can be understood as at least partially exposing the tool terminals connected to the battery pack 51. This openness also means that when the user needs to operate the battery pack 51, the user can directly contact and operate it. Alternatively, the DC power interface 106 can be a closed battery pack 51 mounting section 107, where the housing assembly 10 includes a cover that substantially closes the battery pack 51 mounting section 107. This arrangement places the tool terminals connected to the battery pack 51 primarily inside the closed housing assembly 10. When the user needs to install, remove, or replace the battery pack 51, the user must first open the cover before operating the battery pack 51. The connection method between the cover and other housing assemblies 10 is not limited, including but not limited to pivoting, snap-fitting, and plugging / unplugging.

[0147] In this embodiment, the battery pack 51 is located on the left side of the table saw 100. Specifically, the battery pack 51 is located on the left side wall 103, which is recessed inward to form a DC power interface 106. At the same time, the battery pack 51 is also located on the side close to the rear side wall 102. When the user is using the table saw 100 to cut, they will generally stand on the side where the rear side wall 102 is located, and place the battery pack on the side of the left side wall 103 close to the rear side wall 102, so that the position of the battery pack 51 is within the range of the user's arm operation, which makes it convenient for the user to replace the battery pack 51.

[0148] Please refer to Figures 5, 11 to 15. The dust collection assembly 20 includes a fan 22, a dust storage component 23, a filter component 24, and a switching component 25. The fan 22 is connected to the motor shaft 411 and rotates synchronously with the motor shaft 411. That is, when the motor shaft 411 drives the fan 22 to rotate within the receiving cavity 105, the fan 22 forms an airflow path, which can carry the dust along with it. The dust storage component 23 is mounted on the housing assembly 10 and is used to collect and store dust. The filter component 24 is used to filter the air entering the receiving cavity 105 from the dust storage component 23. The switching component 25 is used to switch the dust collection mode of the dust collection assembly 20.

[0149] The table saw 100 is powered by DC power, which is different from the traditional AC power supply method. More consideration needs to be given to the output power of the motor 41, the dust collection efficiency of the table saw 100, the battery pack 51 and other endurance. This application optimizes the arrangement of the dust collection component 20 and the overall structure of the table saw 100, and achieves a dust collection efficiency of greater than or equal to 90% while greatly extending the endurance of the battery pack 51. In some embodiments, the dust collection efficiency is greater than or equal to 95%, and in some embodiments, the dust collection efficiency is greater than or equal to 98%.

[0150] Along the vertical direction, the dust storage component 23 is detachably connected to the lower end of the housing assembly 10. The dust storage component 23 and the housing assembly 10 can be connected by one or a combination of several of the following: snap-fit ​​connection, plug-in connection, screw connection, pin connection, rivet connection, etc. Specifically, the dust storage component 23 is detachably connected to the main connecting plate 109, and the dust storage component 23 and the main connecting plate 109 are connected by screws.

[0151] The dust collection component 23 is a box with a fixed volume. The box includes a top cover 231 for detachable connection and a dust collection box 232. The dust collection box 232 has a storage cavity for storing dust. The top cover 231 is located on top of the dust collection box 232 to cover the storage cavity. The top cover 231 is fixedly connected to the main connecting plate 109, and the dust collection box 232 is fixedly connected to the top cover 231. During any dust collection mode, the dust collection box 232 will not undergo any shape change. This means that there will be no interference on the path from the saw blade cavity 13 to the dust collection box 232. In other words, during the airflow from the saw blade cavity 13 through the dust collection box 232 and finally to the receiving cavity 105, the dust collection box 232 will not change shape due to dust accumulation or installation, thus not affecting the airflow speed or size, and ultimately leading to poor dust collection efficiency. By setting the dust collection component 23 as a box with a fixed volume, the dust collection efficiency of the table saw 100 can be effectively improved.

[0152] Please refer to Figures 22, 29, and 39. The table saw 100 also includes a cutting groove 137, which is located at the lower end of the worktable. Outer protrusions 1221 are formed on the guide grooves 122 on both sides of the opening 121. The two outer protrusions 1221 form a limiting groove 1222. The cutting groove 137 is inserted into the limiting groove 1222, but it is not tightly inserted. The limiting groove 1222 provides space for the guide groove 122 to move left, right, forward, and backward, but restricts its vertical movement. It can be understood that the cutting groove 137 itself is free and can move forward, backward, left, and right. That is, the cutting groove 137 can also move with the saw blade housings on both sides of the saw blade 31. The cutting groove 137 is at least partially located at the upper end of the saw blade cavity 13, and part of the saw blade 31 passes through the cutting groove 137. The cutting groove 137 engages with the saw blade cavity 13 to seal the dust collection channel between the opening 121 and the saw blade cavity 13. The table saw 100 can be driven by the user to rotate between a first cutting mode and a second cutting mode. During the rotation of the saw blade 31, the saw blade cavity 13 also rotates. The larger the rotation angle of the saw blade cavity 13, the larger the gap between the saw blade cavity 13 and the worktable 12. This increased gap causes the dust-collecting airflow to draw in other dust-free air, thus affecting the dust collection efficiency of the table saw 100. By setting the cutting groove 137, the gap between the opening 121 and the saw blade cavity 13 is adjusted during the rotation of the saw blade 31, ensuring a good seal between the saw blade cavity 13 and the opening 121, thereby further improving the dust collection efficiency of the table saw 100.

[0153] The saw blade cavity 13 is rotatable relative to the cutting groove 137. During the rotation of the cutting groove 137, the cutting groove 137 and the saw blade cavity 13 remain in close contact. The limiting groove 1222 includes a first arc-shaped portion 1223 and a second arc-shaped portion 1224 disposed opposite to each other. The saw blade cavity 13 has a third arc-shaped portion 1225 and a fourth arc-shaped portion 1226 formed therein to cooperate with the first arc-shaped portion 1223 and the second arc-shaped portion 1224. Specifically, the third arc-shaped portion 1225 is formed on the first saw blade housing 133, and the fourth arc-shaped portion 1226 is formed on the second saw blade housing 134. The first arc-shaped portion 1223 and the second arc-shaped portion 1224 are disposed on both sides of the saw blade 31, and the fourth arc-shaped portion 1226 is disposed between the first arc-shaped portion 1223 and the second arc-shaped portion 1224, with the fourth arc-shaped portion 1226 closely attached to the second arc-shaped portion 1224. The third arc-shaped portion 1225 is closely attached to the outer side of the first arc-shaped portion 1223. During the rotation of the saw blade 31, the first arc-shaped portion 1223 is closely attached to the third arc-shaped portion 1225, and the second arc-shaped portion 1224 is closely attached to the fourth arc-shaped portion 1226. This structural design ensures that the saw blade cavity 13 and the opening 121 remain in close contact during the switching between the first and second cutting modes of the table saw 100. This ensures a tight seal between the opening 121 and the saw blade cavity 13, preventing air leakage and further improving the dust collection efficiency of the table saw 100 to over 90%, or even over 95%, or even over 98%.

[0154] Motor 41 is a DC brushless motor with a rotational speed greater than or equal to 10,000 rpm and less than or equal to 25,000 rpm. Setting the parameters of motor 41 within this range allows the table saw 100 to maintain the cutting efficiency and dust collection efficiency of the saw blade 31 while also keeping the overall size of the table saw 100 small, thus achieving lightweight and miniaturization of the table saw 100. Furthermore, in this application, to ensure the cutting ability, dust collection and suction functions, and battery life of the table saw 100, the battery pack 51 has a voltage greater than or equal to 20V and a capacity greater than or equal to 4Ah.

[0155] The volume of the dust storage component 23 is greater than or equal to 2 liters and less than or equal to 20 liters, which can also be understood as the volume of the storage cavity being greater than or equal to 2 liters and less than or equal to 20 liters. Setting the volume of the dust storage component 23 within the above reasonable range can avoid the dust storage component 23 being too small, resulting in insufficient space in the receiving cavity 105 to store dust, and can also avoid the dust storage component 23 being too large, which would require the table saw 100 to be set to be very large or very tall in order to install the dust storage component 23 at the lower end of the housing assembly 10, making it difficult to set up the table saw 100 efficiently and in a miniaturized manner.

[0156] Please refer to Figures 35, 36, 37 and 38. The dust storage component 23 is connected to the housing assembly. The dust storage component 23 includes a top cover 231 and a dust storage box 232. The top cover 231 is fixedly connected to the housing assembly 10. The top cover and the dust storage box are detachable, which allows the user to easily remove the dust storage box 232 from the housing assembly 10 and then empty the dust accumulated in the dust storage box 232. Meanwhile, the dust collection box 232 is at least partially transparent, allowing users to directly observe the amount of dust accumulated within it. When the dust accumulation exceeds a certain level, the user can detach the dust collection component 23 from the housing assembly 10 and empty the accumulated dust. This facilitates user operation and avoids situations where the user cannot directly observe the dust collection box 232 from the outside, necessitating frequent detachment of the dust collection component 23 from the housing assembly 10, or where the dust collection box 232 becomes almost completely full of dust, causing the machine to malfunction. The dust collection box 232 is made of a non-flexible material to ensure that its volume remains constant during the operation of the table saw 100. As a feasible implementation, the dust collection box 232 can be made of transparent plastic. The table saw 100 has a simple structure and is easy to implement.

[0157] The storage box 232 and the top cover 231 are made of a non-deformable material, and the bottom of the storage box 232 has a beveled structure. The dust collection box 232 rotates synchronously with the saw blade 31. The dust collection box 232 is a fixed-shape box, meaning that when the dust collection box 232 rotates with the saw blade 31, the bottom of the dust collection box 232 will contact the ground. To prevent the storage box 232 from scraping against the ground during rotation, the bottom of the storage box 232 is designed with a beveled structure. In this way, the storage box 232 can effectively avoid scraping against the ground when rotating with the saw blade, while ensuring the continuity of the rotation of the saw blade 31. The output shaft 32 typically rotates between a default position and a tiltable position. Especially when the output shaft 32 is in the tiltable position, the distance between the dust collection box 232 and the ground is minimal. Therefore, it is sufficient to design the lower corner of the dust collection box 32 with a chamfered angle. This avoids reducing the vertical dimensions of the dust collection box 232 to prevent interference between it and the ground. By creating a chamfered angle at the bottom of the dust collection box 232, this design maximizes its capacity, allowing it to hold more dust.

[0158] As a specific connection method between the top cover 231 and the dust collection box 232, the top cover 231 and the dust collection box 232 are snap-fitted together. Specifically, the table saw 100 also includes a locking structure 84, which is installed on the top cover 231. The locking structure 84 has an original state, an unlocked state, and a locked state. When the locking structure 84 is in the original state, the locking structure 84 is not in contact with the dust collection box 232, and at this time the locking structure 84 is not affected by any external force. When the locking structure 84 is in the unlocked state, the locking structure 84 is separated from the dust collection box 232, and at this time the locking structure 84 is under force. When the locking structure 84 is in the locked state, the locking structure 84 is locked to the dust collection box 232, and at this time the top cover 231 and the dust collection box 232 remain relatively fixed.

[0159] The locking structure 84 includes a snap fastener 841, an elastic element 842, and a slide rail 843. The snap fastener 841 is rotatably connected to the top cover 231 via the slide rail 843. The snap fastener 841 is used to connect with the dust collection box 232, thereby locking the dust collection box 232 to the top cover 231. One end of the elastic element 842 abuts against the top cover 231, and the other end of the elastic element 842 abuts against the snap fastener 841. The elastic element 842 is set with a certain preload at the beginning of installation, that is, one end of the elastic element 842 always applies a biasing force to the upper end of the snap fastener 841, thereby causing the lower end of the snap fastener 841 to deflect inward under the drive of the upper biasing force. At the same time, because the elastic element 842 has a certain length, the lower end of the snap fastener 841 can only deflect to a preset degree. The slide rail 843 is fixedly connected to the top cover 231. The slide rail 843 allows the dust collection box 232 to move along the slide rail 843 when the locking structure 84 is in the unlocked state. The latching member 841 also includes a latching part 845. The dust collection box 232 includes a latching part 846 that cooperates with the latching part 845. When the latching part 845 is engaged with the latching part 845, the top cover 231 and the dust collection box 232 are locked, thereby locking the locking structure 84.

[0160] The dust collection assembly 23 includes two support members 27, which are fixedly mounted on the top cover 231. Each support member 27 has a slide rail 843 that can cooperate with the dust collection box 232. Taking one of the slide rails 843 located on the rear side as an example, the other slide rail 843 located on the front side is symmetrically arranged with it. The slide rail 843 includes a first slide rail 272 located on the rear side of the top cover 231 and a second slide rail 273 located on the left side of the top cover 231. The first slide rail 272 and the second slide rail 273 are smoothly connected. The first slide rail 272 is inclined in the front-back direction, and the second slide rail 273 is basically arranged in a direction parallel to the left-right direction. Specifically, the slide rails 843 located on the front and rear sides of the top cover 231 extend upwards at an inclined direction, extending upwards to the slide rail 843 located on the rear side of the top cover 231 that is parallel to the left-right direction. The dust collection box 232 has guide rails that cooperate with the slide rail 843. Similarly, the dust collection boxes 232 on both the front and rear sides also have guide rails that cooperate with the slide rail 843. The first slide rail 272 intersects the front-rear direction at an angle greater than or equal to 2 degrees and less than or equal to 6 degrees with the direction in which the first slide rail 272 extends. As a preferred embodiment, the angle between the direction in which the first slide rail 272 extends and the front-rear direction is approximately 4 degrees. This arrangement ensures that when the latching part 845 separates from the latching part 846, the dust collection box 232 can be released from the rotation path range of the latching part 841. It also prevents the dust collection box 232 from rotating too much relative to the top cover 231, which would cause the dust collection box 232 to completely detach from the top cover 231 if supported by external force, resulting in the dust collection box 232 falling directly to the ground and causing the dust inside the dust collection box 232 to scatter randomly or be damaged. The above-described structure facilitates the user's disassembly and assembly of the dust collection box 232, thereby making it easy to clean. Furthermore, because the dust collection box 232 is a fixed-volume box that is not easily deformed, the user can effectively control the dust inside the dust collection box 232 during cleaning, preventing dust from scattering and injuring themselves. In one specific implementation, both the slide rail 843 and the guide rail are elongated and protruding.

[0161] To facilitate users in lifting and pulling the dust collection box 232, a handle 28 is formed or fixedly connected to the dust collection box 232. In this embodiment, the dust collection box 232 has a recessed handle 28 that can be operated by the user's hand.

[0162] As a specific state switch, the dust collection box 232 is fixedly installed on the top cover 231, and the locking structure 84 is in the locked state. At this time, the snap-fit ​​part 846 on the dust collection box 231 is locked with the snap-fit ​​part 845 on the snap-fit ​​member 841. When the user wants to remove the dust collection box 232 from the table saw 100, the user will drive the upper end of the snap-fit ​​member 841, causing the snap-fit ​​member 841 to bias backward against the elastic member 842, and the lower end of the snap-fit ​​member 841 to rotate outward, that is, the snap-fit ​​part 845 and the snap-fit ​​part 845 are locked together. 6. Separation: Dust collection box 232 opens downwards under its own weight. Without external force, dust collection box 232 rotates downwards until the guide rail on dust collection box 232 contacts the slide rail 843. At this point, dust collection box 232 opens outwards. The user can release the force applied to the upper end of the latch 841, then grasp the handle 28 and pull the dust collection box out along the extension direction of the slide rail 843 until it is completely detached from the top cover. The user can then empty the dust from the pulled-out dust collection box 232. This completes the switching of the locking structure 84 from the locked state to the unlocked state. After the external force is released, the locking structure 84 switches back to its original state from the unlocked state. After emptying the dust, the user will install the dust collection box 232 on the top cover 231. The user will hold the handle 28 and bring the guide rail of the dust collection box 232 into contact with the slide rail 843. Then, the user will push the dust collection box 232 upward along the extension direction of the slide rail 843. When the dust collection box 232 is pushed to the bottom, the user will drive the handle 28 to rotate upward until the snap-fit ​​part 846 on the dust collection box 232 locks with the buckle part 845, thereby completing the switching of the locking structure 84 from the original state to the locked state.

[0163] Of course, the dust storage component 23 and the housing assembly 10 can also have other specific structures for detachable connection, which are not limited here, as long as the dust storage component 23 and the housing assembly 10 can be detachably connected. The dust storage component 23 is installed on the housing assembly 10, and in the vertical direction, the dust storage component 23 is located below the fan 22. The dust storage component 23 has a first inlet 233, a second inlet 234 and a first outlet 235. Specifically, it can also be understood that the first inlet 233, the second inlet 234 and the first outlet 235 are formed on the top cover 231. The first inlet 233 is used to connect to the saw blade cavity 13, the second inlet 234 is used to connect to the external pipe 26, and the first outlet 235 is used to connect to the receiving cavity 105 where the fan 22 is located, and the interior of the dust storage component 23 can communicate with the receiving cavity 105. The filter component 24 is provided at the first outlet 235 to prevent dust or grime from entering the receiving cavity 105. The switching component 25 is installed on the dust storage component 23, and the switching component 25 includes a rotating component 251 and an operating component 252. The operating component 252 is for user operation, and the rotating component 251 is configured to engage with either the first inlet 233 or the second inlet 234. The rotating component 251 is movably connected to the dust storage component 23 and geared to the operating component 252. The user can switch the rotating component 251 between the first inlet 233 and the second inlet 234 using the operating component 252. Both the first inlet 233 and the second inlet 234 are on the movement path of the rotating component 251. When the rotating component 251 engages with the first inlet 233, the saw blade cavity 13 is not connected to the interior of the dust storage component 23. When the rotating component 251 engages with the second inlet 234, the external pipe 26 is not connected to the interior of the dust storage component 23. The first inlet 233, the second inlet 234, and the first outlet 235 are all located on the top of the dust storage component 23. The opposite sides of the rotating component 251 can respectively accommodate the first inlet 233 and the second inlet 234. The table saw 100 also includes an air guide shroud, which guides the airflow to the components inside the receiving cavity 105. The air guide shroud includes a first guide 421 and a second guide 422. The first guide 421 guides part of the airflow to the gears and circuit board for heat dissipation. The second guide 422 guides part of the airflow between the stator and rotor of the motor 41 for heat dissipation. The air guide shroud is configured to roughly form a first cavity 1051 and a second cavity 1052 in the receiving cavity 105 for accommodating the fan 22 and the motor 41. An air inlet 423 is formed on the first guide 421, and the airflow enters the second cavity 1052 through the air inlet 423. The stator and rotor of the motor 41 are basically located in the second cavity 1052. An air outlet 108 communicating with the external space is provided in the second cavity 1052.When the saw blade 31 cuts the workpiece, it will inevitably generate a large amount of dust. The dust collection component 20 is used to collect the dust generated by the saw blade 31 during cutting, thereby reducing dust and preventing it from affecting the working environment and equipment. It can effectively improve work efficiency and allow users to work in a healthier and more comfortable way.

[0164] When the rotating component 251 engages with the second inlet 234, that is, when the first inlet 233 is connected to the chip outlet 132 of the saw blade cavity 13, the airflow can only flow from the saw blade cavity 13 to the dust storage component 23. At this time, the user activates the switch 61 to turn on the drive circuit, and the motor shaft 411 rotates around the motor axis 412. The rotation of the motor shaft 411 drives the fan 22 and gear connected to the motor shaft 411 to rotate together. The rotation of the gear drives the output shaft 32 connected to the gear to rotate, and the output shaft 32 drives the saw blade 31 to rotate, that is, at this time the saw blade 31 can start cutting. Furthermore, when the rotation of the motor shaft 411 drives the fan 22 to rotate within the receiving cavity 105, the fan 22 forms an airflow path. That is, when the fan 22 rotates, a high-pressure area and a low-pressure area are formed on both sides of the fan 22. The airflow path draws in air from the low-pressure area or into the high-pressure area. Because the air guide shroud restricts the air from the second cavity 1052 from being drawn into the first cavity 1051, the fan 22 draws air from the dust storage component 23 into the receiving cavity 105. Simultaneously, because the dust storage component 23 is connected to the saw blade cavity 13, air from the saw blade cavity 13 is also drawn into the dust storage component 23. Air near the opening 121 is drawn into the saw blade cavity 13. Since the saw blade cavity 13 houses part of the saw blade 31, the saw blade 31 generates a large amount of dust during cutting. This dust is exposed to the air around or inside the saw blade cavity 13. When the fan 22 rotates, it also draws the dust around the opening 121 and inside the saw blade cavity 13 into the dust collection component 23. Because a filter component 24 is provided between the dust collection component 23 and the receiving cavity 105, the dust cannot enter the receiving cavity 105 and remains inside the dust collection component 23, thus achieving the dust collection effect. In addition, the air entering the first cavity 1051 is guided by the air guide and the fan 22 into the second cavity 1052, where it heats the motor 41. Finally, it is discharged from the air outlet 108 formed on the housing assembly 10.

[0165] When the rotating part 251 engages with the first inlet 233, the first inlet 233 is disconnected from the saw blade cavity 13. At this time, the second inlet 234 is connected to the external pipe 26. One end of the external pipe 26 is connected to the second inlet 234, and the other end is connected to the dust suction port. Airflow can only flow from the external pipe 26 into the dust storage component 23. When the user activates switch 61, the fan 22 rotates. Following the same operating principle as described above, the first cavity 1051 draws air into the dust storage component 23, thereby drawing air from the external pipe 26 and around the dust suction port into the dust storage component 23. When the user wants to collect dust or particulate matter from a specific area, simply bring the dust suction port close, and the dust or particulate matter will be drawn into the dust storage component 23 along with the air. After passing through the filter component 24, the dust or particulate matter will remain inside the dust storage component 23. The first chamber 1051 is used as a guide for air to enter the second chamber 1052, which is then guided by the air guide shroud and fan 22. This air then cools the motor 41 inside the second chamber 1052 and is finally discharged from the air outlet 108. In other words, by providing a switchable first inlet 233 and a second inlet 234 on the dust storage component 23, this application not only effectively reduces dust exposure during cutting but also makes the table saw 100 a vacuum cleaner, facilitating the removal of dust from the work environment. The two modes offer greater user choice and convenience. Of course, in some other embodiments, the second inlet 234 may not be provided, meaning the table saw 100 only collects dust generated during the cutting process of the saw blade 31.

[0166] With the output shaft 32 as the origin, the forward direction of the saw blade 31 as the positive direction of the horizontal axis, and the upward direction of the saw blade 31 as the positive direction of the vertical axis, the first inlet 233 has a first end 236 and a second end 237 along the front-back direction. The first end 236 of the first inlet 233 is approximately located on the path of the tangent behind the saw blade 31. The second end 237 of the first inlet 233 is located in the third quadrant or the fourth quadrant. Alternatively, the chip outlet 132 can be understood as being located in the third quadrant or the fourth quadrant. When the saw blade 31 is cutting, it will generate chips and dust. The majority of the chips and dust splash in a direction approximately along the front-back direction. The saw blade 31 flies out in the tangential direction of its rotation. Under normal circumstances, the chips and dust generated by the saw blade 31 are roughly distributed between the downward tangential and horizontal movements. Therefore, setting the chip outlet 132 in the third and fourth quadrants is exactly on the path of dust splashing or falling. This can be understood as follows: even if the table saw 100 does not have a fan 22 for dust collection, setting the chip outlet 132 in the third and fourth quadrants will allow the chips and dust generated by the saw blade 31 to enter the first inlet 233 from the chip outlet 132 under the influence of gravity, and finally fall into the dust storage component 23.

[0167] In some embodiments, the chip discharge port 131 can be located in the third quadrant, that is, the second end 237 of the first inlet 233 can be located in the third quadrant. When the saw blade 31 rotates in the first direction 312 with the output axis 311 as the axis, the workpiece to be cut first contacts the rear of the saw blade 31, and then continues to push the workpiece to be cut forward. In other words, the place where the most dust is generated is the place where the saw blade 31 first cuts. It can be understood that the place where the saw blade 31 generates relatively more chips and dust during the entire cutting process is the third quadrant. That is, the chips and dust generated during the cutting process of the table saw 100 can fall directly into the dust storage component 23 due to the influence of gravity. At the same time, the table saw 100 is equipped with a dust collection fan 22, which generates a dust collection air path during the rotation of the saw blade 31. The dust collection air path will suck the chips and dust in other quadrants into the dust storage component 23 from the first inlet 233. By setting the first inlet 233 in the third quadrant and designing the airflow, dust and debris generated during table saw cutting can be effectively sucked into the dust collection component 23. At the same time, when the motor 41 speed is inconvenient, setting the second end 237 of the first inlet 233 in the third quadrant can enhance the suction power of the dust collection fan 22, thereby better ensuring the dust collection effect of the dust collection component 20.

[0168] It should be noted that the "behind" of the saw blade 31 mentioned here does not refer to a fixed position on the saw blade 31. It can be any position on the saw blade 31. That is, the current state of the saw blade 31 can be rotating or stationary. As long as it is currently in the second or third quadrant, it can be referred to as the "behind" of the saw blade 31.

[0169] In some embodiments, the length of the first inlet 233 in the front-to-back direction is greater than or equal to one-third of the diameter of the saw blade 31 and less than or equal to the diameter of the saw blade 31. The first end 236 of the first inlet 233 is approximately located on the path of the tangent behind the saw blade 31. The rotation of the motor 41 drives the fan 22 to rotate, and the rotation of the fan 22 will inevitably generate suction, that is, suction will be generated in the saw blade cavity 13. By setting the length of the first inlet 233 in the front-to-back direction within the above-mentioned range, it can be ensured that the debris generated when the saw blade 31 is cutting will fall into the first inlet 233. It can also avoid the situation where setting the length of the first inlet 233 in the front-to-back direction too long would result in weak suction generated by the rotation of the fan 22, which would not be able to suck up debris and dust from other quadrants into the dust collection component 23. Alternatively, it could prevent the user from using a more powerful motor 41 to generate greater suction to suck up debris and dust from other quadrants into the dust collection component 23. In other words, by setting the above-mentioned parameters, the dust collection effect of the dust collection component 20 of the table saw 100 is guaranteed while ensuring a reasonable structural configuration of the table saw 100. The diameter of the saw blade 31 is greater than or equal to 150 mm and less than or equal to 180 mm. The ratio of the length of the first inlet 233 in the front-to-back direction to the length of the saw blade 31 in the front-to-back direction is greater than or equal to 0.25 and less than or equal to 0.5. Setting the diameter of the saw blade 31 within the above-mentioned reasonable range ensures sufficient efficient space between the saw blade cavity 13 and the first inlet 233. Even without a dust collection air path, the sawdust brought out by the saw blade 31 during cutting will be thrown into the dust collection component 13. Setting the ratio of the opening of the first inlet 233 to the diameter of the saw blade 31 within the above-mentioned range avoids the first inlet 233 being too small, causing the fallen sawdust and dust to accumulate in the saw blade cavity 13, making it impossible for the user to cut very thick wood. At the same time, it also avoids the first inlet 233 being too large, resulting in a low airflow velocity at the first inlet 233, which would not be able to adsorb large particles of dust or dirt.

[0170] The first inlet 233 and the second inlet 234 have different shapes. The aspect ratio of the first inlet 233 is greater than or equal to 1. Furthermore, the first inlet 233 is roughly oblong. Setting the first inlet 233 to be oblong can, while adapting to the overall outline of the saw blade cavity 13, prevent the cross-section from being too large, which would reduce the airflow speed. It can also prevent the first inlet 233 from being too small, which would prevent dust and debris from entering the dust storage component 23 from the first inlet 233, thus causing dust and debris to accumulate in the saw blade cavity 13.

[0171] The second inlet 234 is approximately circular in shape and can be adapted to most conventional dust collection applications on the market. For example, the second inlet 234 can be connected to a circular saw to draw dust generated during cutting into the dust collection component 23. The diameter of the cross-section of the second inlet 234 is greater than or equal to 20 mm and less than or equal to 40 mm. By setting the diameter of the cross-section of the second inlet 234 within this range, the dust collection efficiency of the dust collection component 20 can be guaranteed when connected to an external dust collection tool. As another embodiment of the second inlet 234, the cross-sectional area of ​​the second inlet 234 is greater than or equal to 300 square millimeters and less than or equal to 1300 square millimeters. Setting the cross-sectional area of ​​the second inlet 234 within this range can effectively guarantee the dust collection efficiency of the dust collection component 20 when connected to an external dust collection tool.

[0172] During the dust collection process, i.e., during the airflow process, the overall airflow area is greater than or equal to the area of ​​the air inlet 423, the area of ​​the opening 121 on the workbench 12 is greater than or equal to the area of ​​the air inlet 423, and the area of ​​the first outlet 235 is greater than or equal to the area of ​​the air inlet 423. This arrangement ensures that the dust collection fan 22 provides strong suction while also ensuring the dust collection effect of the dust collection component 20. The above solution, by setting a motor 41 and a fan 22 inside the housing component 10, can achieve both cutting by the table saw 100 and a high dust collection effect. This not only ensures the structure and function of the table saw 100 but also optimizes its structure. Furthermore, because a single fan 22 simultaneously performs dust collection and motor 41 cooling, the power consumption of the table saw 100 is greatly reduced, improving the endurance of the DC table saw 100.

[0173] The fan 22 rotates, thereby forming a dust collection air path inside the housing assembly 10. The flow path of the dust collection air path starts from the opening 121 of the worktable 12, flows to the saw blade cavity 13, then flows to the dust storage component 23, then flows into the motor housing, and finally flows out of the air outlet. The entire dust collection air path is basically made of non-flexible material. Furthermore, the saw blade cavity 13 and the dust storage component 23 are connected by non-flexible material. The structure between the saw blade cavity 13 and the dust storage component 23 does not change with the switching of the table saw 100 cutting mode. Most traditional table saws 100 on the market currently use alternating current (AC). This means the dust collection component 23 is fixed; the dust collection component 23 does not rotate synchronously with the saw blade 13 during rotation. To ensure airflow in the dust collection path, a flexible pipe is used to connect the saw blade cavity 13 and the dust collection component 23. However, due to changes in the saw blade 13's cutting mode, the pipe needs a certain length to achieve the table saw 100's dust collection function. This results in the pipe bending and accumulating inside the housing assembly 10. The bending of the pipe causes the dust collection airflow path to be different each time, and it also obstructs the path. This situation leads to the accumulation of dust and sawdust in the curved pipes of the dust collection air path, thereby reducing the airflow transmission efficiency, reducing the dust collection efficiency of the table saw 100, or increasing the dust collection energy consumption of the table saw 100. However, since the traditional table saw 100 uses AC power, the energy source can always supply power to the motor 41 without any difference, and the interference caused by the flexible pipe can be completely ignored. However, this application uses DC power supply. In the structural design of this application, the saw blade cavity 13 and the dust collection component 23 are directly rigidly connected, and the saw blade 31 and the dust collection component 23 rotate synchronously. There is no need to set up flexible pipes or other structures, which can effectively avoid the problem of low efficiency caused by the use of flexible pipes in the traditional table saw 100. Furthermore, the connection cross section between the saw blade cavity 13 and the dust storage component 23 in this application can be set to various cross sections, no longer limited to the circular cross section that adapts to the pipe. This application sets the connection cross section to an approximately elliptical shape, and the path between the saw blade cavity 13 and the dust storage box 232 can be reached in a straight line. This greatly improves the dust collection efficiency. Under the same energy consumption, the dust collection efficiency of this application is better. In other words, if the dust collection structure of this application is set on the traditional table saw 100, it can also greatly improve the dust collection effect of the traditional table saw 100.

[0174] As another feasible implementation, the power assembly may include two motors 41. One motor 41 drives the saw blade 31 to rotate for cutting, and the other motor 41 drives the fan 22 to rotate for dust collection / vacuuming. The two motors can rotate asynchronously, meaning that when one motor 41 rotates, the other motor 41 may not rotate. In other words, if the user only wants to use the dust collection function of the table saw 100, only one motor 41 needs to be activated. In this application, the motor 41 can be a DC motor 41, or more specifically, a DC brushless motor 41.

[0175] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. A table saw, comprising: The worktable includes a longitudinally extending opening; The saw blade is configured to rotate about an output shaft as an axis, the output shaft being located below the worktable, and the saw blade passing through the opening and partially exposed above the worktable; The dust collection assembly includes a fan and a dust storage component, wherein the fan is configured to form an airflow path when rotating, guiding the air around the saw blade toward the dust storage component; At least one motor is configured to drive the output shaft and the fan; A drive circuit is configured to supply electrical energy to the at least one motor; and At least one DC power interface is provided, which is mechanically and electrically connected to the battery pack, and is also configured to be electrically connected to the drive circuit.

2. The table saw according to claim 1, characterized in that, The table saw also includes a start switch, which is located between the DC power interface and the drive circuit. When the start switch is off, no current flows through the drive circuit.

3. The table saw according to claim 1, characterized in that, When the battery pack is installed to the DC power interface, the battery pack is not higher than the worktable in the vertical direction.

4. The table saw according to claim 1, characterized in that, The DC power interface is an open battery pack mounting section.

5. The table saw according to claim 1, characterized in that, The DC power interface is a closed battery pack mounting section.

6. The table saw according to claim 1, characterized in that, The number of motors is one, the motor includes a motor shaft, and the saw blade and the fan are respectively disposed at both ends of the motor shaft.

7. The table saw according to claim 1, characterized in that, The number of motors is two, and the two motors drive the fan and the saw blade respectively.

8. The table saw according to claim 1, characterized in that, At least two battery packs coupled to the DC power interface are discharged in series.

9. The table saw according to claim 1, characterized in that, At least two battery packs coupled to the DC power interface are discharged in parallel.

10. The table saw according to claim 1, characterized in that, The rated voltage of the battery pack is greater than or equal to 20V, and the rated energy of the battery pack is greater than or equal to 80 watt-hours.

11. The table saw according to claim 1, characterized in that, The dust collection efficiency of the dust collection component is greater than or equal to 90%.

12. The table saw according to claim 1, characterized in that, The dust storage component includes a dust storage box, which tilts synchronously when the output shaft of the saw blade tilts.

13. The table saw according to claim 1, characterized in that, The table saw also includes a display screen, which is located below the workbench; When the table saw malfunctions, the display screen issues a visual alert.

14. A power tool system, comprising Battery pack, including: case, Multiple battery cells are housed in the housing; and A tool interface, located in the housing, is detachably and mechanically connected to a power tool; Table saw, including: The worktable includes a longitudinally extending opening; The saw blade is configured to rotate about an output shaft as an axis, the output shaft being located below the worktable, and the saw blade passing through the opening and partially exposed above the worktable; The dust collection assembly includes a fan and a dust storage component, wherein the fan is configured to form an airflow path when rotating, guiding the air around the saw blade toward the dust storage component; A motor, configured to drive the output shaft and the fan; and A DC power interface is configured to be mechanically and electrically connected to the tool interface to supply electrical energy to the motor.

15. The power tool system according to claim 14, characterized in that, When the battery pack is installed to the DC power interface, the battery pack is not higher than the worktable in the vertical direction.

16. The power tool system according to claim 14, characterized in that, The rated voltage of the battery pack is greater than or equal to 20V, and the rated energy of the battery pack is greater than or equal to 80 watt-hours.

17. The power tool system according to claim 14, characterized in that, The power tool system also includes other power tools, and the battery pack can be detached from the DC power interface for use with other power tools.

18. The power tool system according to claim 14, characterized in that, The number of motors is one, the number of fans is one, and the airflow formed by the fan when it rotates passes through the stator of the motor and the dust collection component.

19. The power tool system according to claim 14, characterized in that, The DC power interface is located on the side wall of the table saw.

20. The power tool system according to claim 14, characterized in that, The DC power interface is located on the left side wall of the table saw, and the battery pack is inserted into the DC power interface in the left-right direction.

Images