WO2022016997A1 - Electric coupler, electric tool assembly, control device assembly and electric tool system - Google Patents

Abstract

An electric coupler (30), comprising: a male connector (32) and a female connector (34), wherein one of the male connector (32) and the female connector (34) is configured to be connected to an electric tool (11, 600), and the other is configured to be connected to a control device (12, 500); the control device (12, 500) is provided with a battery pack mounting portion (25, 506) configured to be connected to a battery pack (27, 700); the male connector (32) is connected to the female connector (34), such that the electric tool (11, 600) receives the electric power transferred from the control device (12, 500) via the electric coupler (30); the male connector (32) is provided with three male terminals, and accordingly, the female connector (34) is provided with three female terminals; and each of the male terminals and the female terminals comprises two power terminals and one signal terminal. The electric coupler (30) connects the electric tool (11, 600) with the control device (12, 500) on which a power source is mounted, such that the power source is arranged outside the electric tool (11, 600), and a user does not need to bear the weight of the electric tool. In addition, the maximum current that the power terminals allow is 9-13 A, which can meet the high-current demand of a specific electric tool (11, 600).

Description

Electrical connectors, power tool assemblies, control gear assemblies and power tool systems

This application requires that the filing date is July 24, 2020, the application number is 202021491703.6 and the filing date is Aug. 21, 2020, the application number is 202010851578.3 and the filing date is Dec. 14, 2020, and the application number is 202022991548.0 and the application The date is February 10, 2021, and the priority of the Chinese patent application with application number 202120369619.5, the entire content of which is incorporated in this application by reference.

technical field

The present invention relates to an electrical connector.

The present invention relates to a power tool assembly comprising the above electrical connector.

The present invention relates to a control device assembly comprising an electrical connector as described above.

The present invention relates to a power tool system.

Background technique

Existing DC power tools generally include a tool body and a battery pack connected in combination with the tool body. When performing specific operations, the user needs to bear the weight of the battery pack. In particular, a large-capacity battery pack will increase the overall weight of the power tool, and the user has a heavy burden to hold.

In order to solve this problem, a connector for connecting a power tool and a power supply unit has appeared on the market. However, this type of connector can only meet the power transmission between the power tool and the power supply device, and has a single function; and the allowable current is limited, and cannot meet the high current demand of a specific power tool.

SUMMARY OF THE INVENTION

In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to provide an electrical connector, which connects the power tool and the control device, realizes large current transmission between the two, and has high safety; and it allows control Signal transmission is performed between the device and the power tool, and the adjustment function of the power tool is integrated on the control device, which further simplifies the design of the power tool.

In order to solve the above technical problems, the technical solution of the present invention is: a male connector of an electrical connector for connecting with a female connector, wherein: the male connector is connected to one of an electric tool and a control device; the female connector The connector is connected to the other of the power tool and the control device, and the control device is provided with a mounting portion for connecting a battery pack; the male connector is connected to the female connector, so that the power tool is connected via the male connector and the female connector receives power transmitted from the control device; the male connector is provided with 3 male terminals, and the 3 male terminals are configured to include 2 power terminals and 1 signal terminal.

In one of the embodiments, the maximum current allowed to flow through the power terminal is between 9A-13A.

In one of the embodiments, the maximum current allowed to flow through the power terminal is between 10A-12A.

In one of the embodiments, the male connector is a plug provided with pins, including first and second pins configured as the power terminals and pins configured as the signal terminals third pin.

In one embodiment, the shape and size of the first pin and the second pin are the same; and the diameter of the first pin is between 1.98mm-2.02mm.

In one of the embodiments, the male connector is connected to the control device or the power tool through a cable.

In order to solve the above technical problem, the present invention provides another technical solution: a control device assembly for connecting with an electric tool to provide power for the electric tool, the control device assembly includes: a control device, which is provided with a It is used for connecting the installation part of the battery pack; wherein, the control device assembly further includes the male joint of the electrical connector.

In order to solve the above technical problems, the present invention provides another technical solution: an electric tool assembly for connecting with a control device and receiving power transmitted by the control device; the control device is provided with an installation for connecting to a battery pack part; the power tool assembly includes: a power tool, wherein the power tool assembly further includes a male joint of the electrical connector.

In order to solve the above technical problems, the present invention provides another technical solution: a female connector of an electrical connector, used for connecting with a male connector; wherein: the female connector is connected to one of the electric tool and the control device; The male connector is connected to the other of the power tool and the control device, and the control device is provided with a mounting portion for connecting a battery pack; the male connector is connected to the female connector, so that the power tool is connected via the The male connector and the female connector receive power transmitted from the control device; the female connector is provided with 3 female terminals configured to include 2 power terminals and 1 signal terminal.

In one of the embodiments, the female connector is a socket including first and second clips configured as the power terminals and a third clip configured as the signal terminals; The first and second clamping members are respectively arranged in the first and second insertion holes, the third clamping member is arranged in the third insertion hole, and the first, second and third clamping members All are made of conductive material.

In one of the embodiments, the first and second clamping members are hollow cylindrical structures, and the peripheral walls thereof are provided with cutting grooves; the inner diameters of the first and second clamping members in a natural state are 1.9 Between mm-1.94mm.

In one of the embodiments, the female connector is connected with the control device or the power tool through a cable.

In order to solve the above technical problem, the present invention provides another technical solution: a control device assembly for connecting with an electric tool to provide power for the electric tool, the control device assembly includes: a control device, which is provided with a It is used to connect the installation part of the battery pack; wherein, the control device assembly further includes the female connector of the electrical connector as described above.

In order to solve the above technical problems, the present invention provides another technical solution: an electric tool assembly for connecting with a control device and receiving power transmitted by the control device; the control device is provided with an installation for connecting to a battery pack part; the power tool assembly includes: a power tool, wherein the power tool assembly further includes the female connector of the electrical connector.

In order to solve the above technical problem, the present invention provides another technical solution: an electric tool system, which includes: an electric tool; a control device, which is provided with a mounting part for connecting a battery pack; an electric connector, including a male joint and the female connector; wherein one of the male connector and the female connector is used to connect the power tool, and the other is used to connect the control device; the male connector and the female connector are electrically and mechanically connected, so The electric power tool receives the power transmitted from the control device via the electrical connector; the male connector is provided with 3 male terminals, and the female connector is correspondingly provided with 3 female terminals adapted to the 3 male terminals terminals, and the 3 male terminals and the 3 female terminals are each configured to include 2 power terminals and 1 signal terminal.

In one of the embodiments, the male connector is configured as a plug and is connected with the control device through a cable, and the female connector is configured as a socket and connected with the power tool; and the control device is configured as There is a first user operation unit, the first user operation unit is electrically connected with the male connector; the power tool is provided with a second control unit, and the second control unit is electrically connected with the female connector; when The male connector and the female connector are electrically and mechanically connected, and the first user operation unit is electrically connected to the second control unit.

In one embodiment, the electrical connector is further provided with a holding unit for keeping the male connector and the female connector in a connected state; the holding unit includes a holding unit provided between the male connector and the female connector. An elastic coupling portion on one of the female connectors, and a secondary coupling portion provided on the other of the male connector and the female connector and used for matching with the elastic coupling portion.

Compared with the prior art, the power tool system of the present application realizes the connection between the control device installed with the battery pack and the power tool through the electrical connector, so that the power tool does not need to be provided with a power supply for supplying power to the working parts, reducing the need for power supply. The size and weight of the power tool are reduced. On the other hand, when operating the power tool by holding the second housing, the control device can be placed aside, and the user does not have to bear its weight; and the control device in the power tool system is common to a variety of power tools, so that not only can the control device be lifted The adaptability of the control device can also reduce the production cost of the power tool.

Description of drawings

The drawings described herein are for explanatory purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes and proportions of the components in the figures are only schematic and are used to help the understanding of the present invention, and do not specifically limit the shapes and proportions of the components of the present invention. Under the teachings of the present invention, those skilled in the art can select various possible shapes and proportions according to specific conditions to implement the present invention.

FIG. 1 is a schematic block diagram of a power tool system according to an embodiment of the present application;

2 is a schematic structural diagram of the power tool system according to the first embodiment of the application, wherein the control device is connected to the power tool through an electrical connector;

FIG. 3 is a schematic structural diagram of the power tool system shown in FIG. 2 , wherein the control device is not connected to the power tool;

Fig. 4a is a schematic structural diagram of the electric power tool system shown in Fig. 2 involving an electrical connector; Fig. 4b is a structural schematic diagram of the electrical connector shown in Fig. 4a involving a female connector; Fig. 4c is a schematic diagram of the female connector shown in Fig. 4b In the joint, the schematic diagram of the structure involving the clamping part;

Fig. 5 is a detailed view of partial stripping of cables in the power tool system shown in Fig. 2;

Fig. 6a is a view of the male connector from another perspective in the electrical connector shown in Fig. 4a; Fig. 6b is a view of the female connector from another perspective in the electrical connector shown in Fig. 4a;

FIG. 7 is a partial cross-sectional view of the electrical connector shown in FIG. 4a, wherein the male connector and the female connector are in a connected state.

8 is a schematic structural diagram of the power tool system according to the second embodiment of the application, wherein the power tool is a heat gun;

9 is a schematic structural diagram of a heat gun in the power tool system of FIG. 8;

Fig. 10 is the sectional view of Fig. 8;

11 is a schematic structural diagram of the external power supply assembly of FIG. 8;

FIG. 12 is a disassembly view of the external power supply assembly of FIG. 11 .

detailed description

The details of the present invention can be more clearly understood with reference to the accompanying drawings and the description of the specific embodiments of the present invention. However, the specific embodiments of the present invention described herein are only for the purpose of explaining the present invention, and should not be construed as limiting the present invention in any way. Under the teaching of the present invention, the skilled person can conceive any possible modifications based on the present invention, and these should be regarded as belonging to the scope of the present invention. It should be noted that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication between two components, it can be directly connected, or it can be indirectly connected through an intermediate medium, For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for the purpose of illustration only and do not represent the only embodiment.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the present application are for the purpose of describing particular embodiments only, and are not intended to limit the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to FIG. 1 to FIG. 3 , which are the power tool system 100 provided by the first embodiment of the present invention. The power tool system 100 includes: a power tool 11 ; a control device 12 ; and an electrical connector 30 for connecting the power tool 11 and the control device 12 .

The control device 12 includes: a first casing 15 ; a battery pack mounting portion 25 for connecting the battery pack 27 ; a first control unit 120 and a first user operation unit 121 . The battery pack mounting portion 25 includes a pair of guide rails, and the battery pack 27 slides along the pair of guide rails to engage or disengage from the control device 12 .

In a possible embodiment, the battery pack 27 can also be detachably connected to the battery pack mounting portion 25 by other means. This application does not limit this.

The first control unit 120 is electrically connected to the battery pack 27, and can control the discharge of the battery pack 27 to protect the battery pack 27; when the first control unit 120 detects that the battery pack 27 is abnormal, for example, the battery pack 27 is overheated, In case of undervoltage or overcurrent, the first control unit 120 can stop the discharge of the battery pack 27 by cutting off the external power supply circuit of the control device 12 . In this embodiment, the specific structure of the first control unit 120 may be an MCU (Microcontroller Unit, micro-controller component) and its peripheral operating circuit.

The first user operation unit 121 is disposed on the control device 12, and the user can adjust the operation of the power tool 11 by manipulating the first user operation unit 121.

The control device 12 also includes a first interface 21 that is electrically connected to the first user operating unit 121 for connecting the power tool 11 through the electrical connector 30 so that the first user operating unit 121 is connected to the power tool 11 and can reflect the The user's operation instruction on the first user operation unit 121 is sent to the electric tool 11 , or the electric tool 11 actively acquires the operation instruction from the control device 12 . When the first interface 21 is connected to the power tool 11 through the electrical connector 30 , the control device 12 can adjust the working parameters of the power tool 11 .

In this embodiment, the electrical connector 30 is connected to the first interface 21 through the cable 23 .

The power tool 11 includes a second housing 18 , a working part 112 and a second control unit 110 . Wherein, the working part 112 is different according to the type of the power tool. For example, a power tool includes a motor, and the working part 112 includes a motor. Such as angle grinders, straight grinders, heat guns, hair dryers, etc. If the power tool does not have a motor, its working part 112 may include a resistance wire, a heating wire, etc., such as an electric soldering iron. In this embodiment, the electric tool 11 is an angle grinder.

The power tool 11 is further provided with a second interface 22 , and the second control unit 110 is electrically connected to the second interface 22 . When the first interface 21 is connected with the second interface 22 through the electrical connector 30 , the second control unit 110 in the power tool 11 is electrically connected with the first user operation unit 121 in the control device 12 .

The electrical connector 30 includes a male connector 32 and a female connector 34 . The male connector 32 is used for connecting with the control device 12 through the cable 23 , and the female connector 34 is used for connecting with the electric tool 11 . When the male connector 32 and the female connector 34 are electrically and mechanically connected, the power tool 11 receives the power transmitted from the control device 12 via the electrical connector 30 .

Specifically, the cable 23 is a multi-core cable, which has two wires for transmitting power and one signal core wire for transmitting operation instructions. Correspondingly, the male connector 32 is provided with three male terminals, which are a positive terminal, a negative terminal and a signal terminal. The positive terminal and the negative terminal are power terminals, which are used to transmit the power of the battery pack 27 installed on the control device 12 to the power tool 11 ; the signal terminals are used to reflect the specific operation of the first user operation unit 121 by the user. The command is transmitted to the power tool 11 .

In this embodiment, the male connector 32 is configured as a plug.

Specifically, as shown in FIG. 4 a , the male joint 32 includes a third housing having a first cylindrical portion 321 and a second cylindrical portion 322 . The first cylindrical portion 321 is in the shape of a hollow cylinder, and a pin is fixed therein; the second cylindrical portion 322 is used for accommodating the cable 23 .

In this embodiment, the number of pins is 3, which are the first pin 323, the second pin 324 and the third pin 325, which are arranged in parallel. Among them, the first pin 323 is a positive terminal, and the second pin 324 is a negative terminal, both of which are used to transmit the power of the battery pack 27 installed on the control device 12 to the power tool 11; the third pin 325 is configured It is a signal terminal for transmitting an electric signal reflecting the specific operation of the user on the first user operation unit 121 to the power tool 11 .

Correspondingly, as shown in FIG. 5 , the two wires inside the cable 23 are respectively connected with the aforementioned first pin 323 and the second pin 324 ; one signal core wire is connected with the aforementioned third pin 325 .

As shown in Figures 4a, 4b, in this embodiment, the female connector 34 is configured as a socket. The female connector 34 includes a fourth housing having a rear portion 341 for shape-fitting with the first barrel portion 321 , a front portion 342 remote from the rear portion 341 , and a shoulder 343 connecting the rear portion 341 and the front portion 342 . The rear portion 341 , the front portion 342 and the shoulder portion 343 are substantially cylindrical in shape and arranged in a stepped shape; and all three are made of non-conductive materials, and the shoulder portion 343 has a larger diameter than the front portion 342 and the rear portion 341 . to size. The rear part 341 is provided with 3 sockets for matching with the shape of the aforementioned pins; and, inside each socket is fixedly provided with a clamping member 344 for clamping the pins, and the other end of the clamping member 344 is pierced. Over the shoulder portion 343 and the front portion 342 and protruding, a connection terminal for connecting the power tool 11 is formed. Here, the sockets corresponding to the first pin 323 , the second pin 324 and the third pin 325 are respectively defined as the first socket 345 , the second socket 346 and the third socket 347 .

Here, the clamping member 344 disposed inside the jack is defined as the female terminal of the female connector. Correspondingly, the clamping member disposed inside the first insertion hole 345 is the first clamping member; the clamping member disposed inside the second insertion hole 346 is the second clamping member; the clamping member disposed inside the third insertion hole 347 is the second clamping member The holding member is a third holding member. Wherein, the first clamping member and the second clamping member are configured as power terminals, and the third clamping member is a signal terminal.

Referring to FIG. 4c, the clamping member 344 extends along the lengthwise direction and has a first end 3441 and a second end 3442 in the extending direction thereof. The first end 3441 has a hollow cylindrical structure, and the outer wall thereof is provided with cutting grooves 3443 at intervals along the circumferential direction. The second end 3442 has a semi-cylindrical shape and is used for connecting with the second interface 22 of the power tool 11 . In the natural state, that is, when the pin is not inserted into the first end 3441, the inner diameter of the clamping member 344 is the smallest; and when the pin is inserted, the clamping member 344 is stretched, and the inner diameter of the hollow cylindrical structure becomes larger, that is, the clamping member 344 becomes larger. Hold the diameter larger. In this embodiment, the structures of the first, second and third clamping members are completely the same, and the clamping member 344 here can be any one of the first, second and third clamping members.

In this embodiment, the number of the cutting grooves 3443 is 2, which are arranged at an interval of 180 degrees.

In this embodiment, the inner diameter of the first cylindrical portion 321 is 12.7 mm; correspondingly, the outer diameter of the rear portion 341 is 12 mm.

In a possible implementation, the male connector 32 can also be selected to be connected to the power tool 11, and the female connector 34 to be connected to the control device 12. As long as the two cooperate with each other, the power of the battery pack 27 can be transmitted to the electric power tool through the control device 12. Tool 11 will do.

In the power tool system 100 of the present embodiment, the technical means of placing the battery pack 27 outside the power tool 11 , that is, the technical means of attaching the battery pack 27 to the control device 12 , makes it unnecessary for the user to perform specific operations. The weight of the battery pack 27 reduces the user's holding burden and is easy to carry and store.

Also, the control device 12 can be connected to different types of power tools 11 via the electrical connector 30 . In this way, different types of power tools 11 can share one control device 12, thereby reducing the cost for users.

Power tools here refer to tools powered by electricity, including but not limited to: angle grinders, straight grinders, heat guns, hair dryers, electric soldering irons, blow suction machines, paint spray guns, etc. It can be seen that the power tool can be a power tool with a motor, such as an angle grinder, a straight grinder, and the like. It can also be a power tool without a motor, such as an electric soldering iron and so on.

In this embodiment, the male connector 32 is fixedly connected to the control device 12 through the cable 23 , and the female connector 34 is fixedly connected to the electric tool 11 . In this way, when the connection between the control device 12 and the power tool 11 needs to be disconnected, it is only necessary to separate the male connector 32 from the female connector 34 .

At this time, the power from the battery pack 27 needs to be transmitted to the power tool 11 via the cable 23 and the electrical connector 30 . In general, the maximum current allowed to flow through the wires in the cable 23 is 10A, which can meet the power requirements of different types of power tools 11 . However, in the existing electrical connectors, the radial size of the pins is usually not more than 1.5mm, and the maximum current allowed to pass through is not more than 6A, which cannot meet the high current requirements of specific power tools; otherwise, the electrical connector 30 will generate serious heat , not safe.

For this reason, in the electrical connector 30 of the present application, the power terminal for transmitting the power of the battery pack 27, including the first pin 323, the second pin 324, the first clip and the second clip must all satisfy Excessive current demand. That is, the structural dimensions of the first and second pins and the first and second clamping members need to be set within a reasonable range.

We know that when the male connector is mated with the female connector, the pin and the shape of the holder are matched. At this time, the clamps are stretched. Therefore, here, we use the radial dimensions of the first pin 323 and the second pin 324 to characterize the overcurrent capability of the power terminal.

In this embodiment, the diameters of the first pin 323 and the second pin 324 are between 1.98mm-2.02mm.

Preferably, the maximum current allowed to flow through the first and second pins 323 and 324 is between 9A and 13A.

Preferably, the diameters of the first and second pins 323 and 324 are 2 mm. The maximum current allowed to flow through the first and second pins 323 and 324 is between 10A-12A. The third pin 325 is used to transmit signals, and the current value flowing through it is small, and the diameter may be between 1mm-1.2mm. Of course, from the viewpoint of processing convenience, the third pin 325 may also have the same diameter size as the first and second pins 323 and 324 .

In this embodiment, the first pin 323 , the second pin 324 and the third pin 325 have the same structural dimensions. That is, the diameters and axial lengths of the first, second and third pins are the same; correspondingly, the structural dimensions of the first clamping member, the second clamping member and the third clamping member are the same. Of course, the structural dimensions of the three sockets for respectively accommodating the three clips are also the same.

As shown in Fig. 6a, projecting the pin to a plane perpendicular to its extending direction, the outlines of the first pin 323, the second pin 324, and the third pin 325 approximately form an isosceles triangle; The distance L3 between the pins 323 and the second pins 324 is 6.4mm, the distance L4 between the first pins 323 and the third pins 325 is equal to the distance L5 between the second pins 324 and the third pins 325, and both are 5mm. . Correspondingly, as shown in FIG. 6b , the outlines of the first insertion hole 345 , the second insertion hole 346 and the third insertion hole 347 approximately form an isosceles triangle by projecting the insertion hole to a plane perpendicular to its extending direction.

Further, in order to ensure the safety of power transmission during the operation of the electric tool 11 and prevent the male connector 32 and the female connector 34 from being easily loosened, the male connector 32 and the female connector 34 in this embodiment are interference fit. . Specifically, as shown in FIGS. 4a and 4c, in the male connector 32, the diameters of the first and second pins 323, 324 are between 1.98mm and 2.02mm; 1. The clamping diameter of the clamping members 344 of the second pins 323 and 324 in a natural state is between 1.9 mm and 1.94 mm.

In a possible embodiment, the electrical connector 30 is further provided with a holding unit for maintaining the connection state between the male connector 32 and the female connector 34 so as not to be easily loosened.

As shown in FIGS. 4 a and 7 , the holding unit includes an elastic coupling portion 36 provided on the female connector 34 and a secondary coupling portion 38 provided on the male connector 32 . The elastic coupling part 36 is a metal sheet structure, and the whole is wave-shaped, and is arranged on the outer surface of the rear part 341 ; the auxiliary coupling part 38 is a groove recessed from the outer surface of the first cylindrical part 321 . When the male connector 32 and the female connector 34 cooperate with each other, that is, the first cylindrical portion 321 and the rear portion 341 are inserted into each other, the elastic coupling portion 36 and the secondary coupling portion 38 are clamped to each other and elastically deformed under the action of the secondary coupling portion 38 . .

In a possible embodiment, as shown in FIG. 7 , the distance L1 that the auxiliary coupling portion 38 is recessed downward from the outer surface of the first cylindrical portion 321 is 1.1 mm; the distance L2 between the crest and the trough of the elastic coupling portion 36 is 1.1 mm. is 1.3mm; when the elastic coupling part 36 cooperates with the auxiliary coupling part 38, the wave crest of the elastic coupling part 36 is elastically deformed to a nearly horizontal state, and the distance from the wave trough is reduced to 0.7mm, that is, the deformation amount of the wave crest is 0.6mm; At this time, one end of the wave crest is in contact with the first inclined surface of the groove 38 , and the other end is in contact with the second inclined surface of the groove 38 . When the user needs to disconnect the male connector 32 from the female connector 34 , the user must provide sufficient pull-out force to further deform the elastic coupling portion 36 .

It is conceivable that the deeper the downward recess of the auxiliary coupling portion 38, the greater the force used to separate the male connector 32 from the female connector 34. In this embodiment, the downward recessed distance of the auxiliary coupling portion 38 is 1.05 Between mm-1.15mm.

In a possible implementation, the elastic coupling portion 36 may also be provided on the male connector 32 , and the secondary coupling portion 38 may be provided on the female connector 34 . This application does not limit this.

As mentioned above, in order to avoid easy loosening between the male connector 32 and the female connector 34, the retention force for maintaining the two in the connected state cannot be too small; The retention force of the connector 34 in the connected state is also not excessive. Therefore, the holding force between the male connector 32 and the female connector 34 needs to be arranged within a reasonable range.

In this embodiment, the holding force between the male connector 32 and the female connector 34 is between 55N and 65N. That is, when the user needs to separate the power tool 11 from the control device 12, a force greater than 55N must be provided.

1-2, the male connector 32 is electrically connected to the first user operation unit 121 of the control device 12 through the cable 23; the female connector 34 is electrically connected to the second control unit 110 of the power tool 11; thus, when When the male connector 32 and the female connector 34 are electrically and mechanically connected, the second control unit 110 in the power tool 11 is electrically connected with the first user operation unit 121 in the control device 12 . Specifically, the signal terminal of the male connector 32 is electrically connected to the first user operation unit 121 , and the signal terminal of the female connector 34 is electrically connected to the second control unit 110 . In this way, when the control device 12 and the power tool 11 are electrically and mechanically connected through the electrical connector 30, the second control unit 110 is electrically connected with the first user operation unit 121, so that the second control unit 110 can obtain the The user operates the first operation unit 121 to generate an adjustment signal, and adjusts the working parameters of the working part 112 according to the adjustment signal.

In one of the embodiments, the first user operation unit 121 includes a first switch 28, and the first switch 28 is disposed on the first housing 15 and located on the external power supply circuit of the control device 12, and is used to control the battery pack 27 to the electric power supply circuit. Power output of the tool 11 .

In this embodiment, the first switch 28 may be a manual button for the user to manually control. When the user operates the first switch 28 to close, the male connector 32 can obtain power from the battery pack 27, so that the power tool 11 can obtain power from the control device 12 through the female connector 34, and the power tool 11 can start the working part 112 after obtaining the power; The on-off state of the first switch 28 can be detected by the first control unit 120 in the control device 12 ; when it is detected that the first switch 28 is closed, the first control unit 120 controls the battery pack 27 to output electrical energy, so that the power tool 12 Power can be obtained from the control device 12 through the electrical connector 30 ; in addition, the second control unit 110 in the power tool 11 can also obtain the on-off state of the first switch 28 to control the working part 112 to start working. Specifically, the command signal for reflecting the on-off state of the first switch 28 is transmitted to the second control unit 110 of the electric tool 11 via the aforementioned third pin 325 , namely the signal terminal, and the second control unit 110 responds to the first switch 28 The state controls the work of the work part 112 .

In this embodiment, the second control unit 110 may also automatically control the working parameters of the working part 112 according to the preset control instructions stored in the interior.

In one of the embodiments, the first user operation unit 121 further includes a first adjustment switch 35 . The first adjustment switch 35 is used for user operation to adjust the working parameters of the working part 112 . Specifically, the first adjustment switch 35 sends an instruction signal reflecting the specific operation of the user to the power tool 11 through the aforementioned signal terminal, or the power tool 11 actively acquires the instruction signal, and generates the first adjustment signal according to the instruction signal, and the second control unit 110 adjusts the working parameters of the power tool 11 according to the first adjustment signal.

The first adjustment switch 35 may be a manual adjustment button for the user to adjust manually. The first adjustment signal may be a speed adjustment signal, a temperature adjustment signal, or other signals to be adjusted.

In one embodiment, the first regulating switch 35 is used to generate a speed regulating signal. Specifically, the first adjustment switch 35 is a speed adjustment button. During operation, if the user presses the first adjustment switch 35 , the second control unit 110 can obtain the user's adjustment instruction through the electrical connector 30 and adjust according to the user's adjustment instruction The working parameters of the working part 112 . In this way, the speed regulation function of the main body of the electric tool 11 is integrated into the control device 12 , that is, the control device 12 can be used to output a speed regulation signal to the electric tool 11 , so that the electric tool 11 does not need to integrate the speed regulation function.

In another embodiment, the first adjustment switch 35 is used to generate a temperature adjustment signal. Specifically, the first adjustment switch 35 is a temperature adjustment button, and when the first adjustment signal is a temperature adjustment signal, the temperature adjustment function of the main body of the electric tool 11 is integrated into the control device 12, that is, the control device 12 can be used to output the temperature adjustment The signal is sent to the power tool 11, so that the power tool 11 does not need to integrate a temperature adjustment function.

The control device 12 does not have a control function for controlling the operation of the electric tool 11 , and is only responsible for generating an adjustment signal to transmit to the electric tool 11 , and the control function is still undertaken by the electric tool 11 .

Some electric tools, such as the angle grinder in this embodiment, need to change the working state of the working part (motor) frequently. If the switch 28 for controlling the start and stop of the motor is provided on the control device 12, although the structure of the electric tool 11 is simplified, it also brings inconvenience to the operation to a certain extent. Because when performing specific operations, the user only holds the power tool 11 itself, and the control device 12 is placed aside through the cable 23; when the working state of the motor needs to be changed, the user must go to the place where the control device 12 is placed to control the control device 12. The device 12 operates to control the motor.

To this end, in one of the embodiments, the power tool 11 further includes a second user operation unit 111 for the user to operate to control the work of the power tool 11 .

The second user operation unit 111 includes a second switch, which is disposed on the second casing 18 and is electrically connected to the second control unit 110. The second control unit 110 can control the working part 112 ( motor) on or off. When the user holds the second housing 18, the working part 112 can be controlled to be turned on and off by controlling the second switch. The second switch may be a membrane switch. Of course, the second switch is not limited to being a membrane switch, but may also be other switches, such as a photosensitive switch, which is not specified in this application.

During operation, the user operates the first switch 28 first, at this time, the battery pack 27 can transmit power to the power tool 11 , and then the user operates the second switch to activate the working part 112 . When the working part 112 needs to be stopped, it is only necessary to operate the second switch.

Of course, the first switch and the second switch may also be provided on the first casing 15 and the second casing 18, respectively. In a possible implementation, it can also be set that the power transmission from the battery pack 27 to the power tool 11 only occurs after the first switch is operated first, and then the second switch is operated again. At this time, the stop of the motor only needs to operate any one of the switches mentioned above.

The second user operation unit 111 further includes a second adjustment switch, which is disposed on the second housing 18 , and may also be a manual speed adjustment button for the user to manually control. The second adjustment switch is electrically connected to the second control unit 110, and the second control unit 110 can generate a second adjustment signal according to the user's operation on the second adjustment switch. The second control unit 110 may select one of the first adjustment signal or the second adjustment signal to adjust the working parameter of the working part 112 according to a preset priority. For example, when the priority of the second adjustment signal is higher than that of the first adjustment signal, the control unit ignores the first adjustment signal and adjusts the working parameters of the working part 112 according to the second adjustment signal; when the priority of the first adjustment signal When the priority is higher than the second adjustment signal, the control unit ignores the second adjustment signal and adjusts the working parameter of the working part 112 according to the first adjustment signal. When the power tool 11 is a miniaturized hand-held power tool, the priority of the second adjustment signal is preferably higher than that of the first adjustment signal, so that the user can adjust the working parameters of the motor when the hand-held power tool 11 is operated.

As shown in FIGS. 8-12 , the power tool system provided by the second embodiment of the present application is shown. The power tool system provided by this embodiment is basically similar to the power tool system provided by the first embodiment in the principle of solving the problem and the technical effects that can be obtained. The functional structures of the electrical connector and the control device are basically the same, with the difference that, in this embodiment, the power tool is configured as a heat gun 600, and the working part includes a motor.

As shown in FIGS. 9-10 , the hot air gun 600 includes: a cylindrical casing 601 , a heating assembly 606 , a motor 609 , a fan 610 and a second control unit located in the cylindrical casing 601 ; the cylindrical casing One end of 601 has an air outlet 602; the DC motor 609 can drive the fan 610 to generate airflow, which is heated by the heating element 606 and output through the air outlet 602; the cylindrical casing 601 is provided with There is a second interface 603 electrically connected to the motor 609 , the heating assembly 606 and the second control unit; the second interface 603 is used to detachably connect the cable 53 and pass the cable 53 The control device 500 is connected.

In this embodiment, as shown in FIGS. 9-10 , the casing 601 is a straight cylindrical casing extending in a single direction, and the length of the cylindrical casing 601 ranges from 150 mm to 250 mm. The outer diameter of the cylindrical casing 601 is not more than 50 mm. The cylindrical casing 601 has a holding portion for the user to hold and operate. The housing 601 has a front end 604 and a rear end 605 along its length direction; the air outlet 602 is located at the front end 604 of the housing 601 .

Further, the heating assembly 606 may include resistance wires. The housing 601 is also provided with an air duct 607, specifically, the air duct 607 is a steel pipe. The resistance wire is wound in mica paper 608 and placed in air duct 607 , which is positioned in housing 601 .

The motor 609 is a DC motor, the diameter of the motor is in the range of 20mm-30mm, and the length of the motor is in the range of 30mm-40mm. The motor 609 is installed at the rear of the air duct 607 (in this embodiment, the front is close to the air outlet 602, and the rear is far from the air outlet 602; for example, the motor 609 is installed at the rear of the air duct 607, that is, the motor 609 is opposite to the air outlet 602. Since the air duct 607 is far from the air outlet 602), the motor 609 is fixedly installed on the motor connection plate 611 by screws, the center hole of the fan 610 is fitted on the motor shaft with an interference fit, and the motor 609 and the fan 610 are installed and positioned by the motor connection plate 611 Inside the housing 601 .

The weight of the heat gun 600 is below 350 grams, preferably, the weight of the heat gun 600 is 200-300 grams, such as 260 grams. The power of the heat gun 600 is below 300W. Preferably, the power of the heat gun 600 is 200W.

In order to facilitate connection with the cable 53 , the casing 601 is provided with a second interface 603 electrically connected to the motor 609 , the heating element 606 and the second control unit. The second interface 603 is located at the tail end 605 . The second interface 603 can be detachably connected (removably connected) with one end of the cable 53 , thereby further improving the convenience of the heat gun 600 . By being provided with the second interface 603, the heat gun 600 is not fixed to be powered by a single control device 500, thereby improving the flexibility of using the device.

Of course, in other embodiments, the cable 53 can also be directly connected to the heat gun 600, and the heat gun 600 can be connected in a non-detachable manner.

Preferably, one end of the cable 53 is electrically connected to the second interface 603 through a plug-in structure. Specifically, as in the first embodiment, the cable 53 is electrically connected to the second interface 603 through the aforementioned electrical connector. One of the male or female connectors of the electrical connector is electrically connected to the cable 53 , and the other of the male or female connectors of the electrical connector is electrically connected to the second interface 603 .

The hot air gun 600 provided in this embodiment is provided with the control device 500 to supply power to the hot air gun 600, so that the hot air gun 600 itself does not need to be provided with a DC power supply such as a battery, thereby reducing the weight of the hot air gun 600, which is convenient for users to use; moreover, the control device The battery pack 700 can be installed on the 500, and it does not use AC power, so it is not easily limited by the usage scenario.

Referring to FIGS. 11 to 12 , the control device 500 includes a first casing 510 and a battery pack mounting portion 506 for detachably mounting the battery pack 700 . When the control device 500 is connected to the heat gun 600 through the cable 53 and the electrical connector, the control device 500 and the battery pack 700 form an external power supply component for supplying power to the heat gun 600 .

Specifically, the control device 500 is provided with a first interface 505 . The first interface 505 and the second interface 603 are detachably connected through the cable 53 and the electrical connector. In this embodiment, the first interface 505 is fixedly connected to the cable 53 .

In a possible implementation manner, two sets of electrical connectors may be provided so that both ends of the cable 53 are electrically and mechanically connected to the first interface 505 and the second interface 603 respectively in the form of a plug-in structure. One of the male and female connectors of the first group of electrical connectors is electrically and mechanically connected to one end of the cable 53 , and the other of the male and female connectors of the first group of electrical connectors is connected to the first interface 505 Electrical and mechanical connection; one of the male and female connectors of the second group of electrical connectors is connected to the other end of the cable 53, and the other of the male and female connectors of the second group of electrical connectors is connected to the second interface 603 Electrical connection. In this way, the power tool system can be separated into independent heat gun 600 , cable 53 and control device 500 , which is not only convenient for storage, but also makes heat gun 600 not limited to be powered by a single control device 500 . Correspondingly, the control device 500 is not limited to supply power to the fixed heat gun 600, which further improves the use flexibility of the device and the adaptability to different scenarios.

As mentioned above, the control device 500 is further provided with a first control unit and a first user operation unit. The first control unit is electrically connected to the battery pack 700, and can control the discharge of the battery pack 700 to protect the battery pack 700; the first user operation unit is used for user operation to adjust the working parameters of the heat gun 700; , the first user operation unit is electrically connected to the first interface 505 , and can be electrically connected to the second interface 603 of the heat gun 600 through the cable 53 . In this way, the second control unit of the heat gun 600 is electrically connected to the first user operation unit of the control device 500 , so that the second control unit can adjust the operating parameters of the heat gun 600 according to the operation instructions transmitted by the first user operation unit.

In a possible implementation, the first user operation unit includes a manual speed regulation module 509 for adjusting the rotational speed of the motor 609 . The manual speed control module 509 may be configured as an operating knob. The operation knob can correspond to different speed gears, and the user can adjust the speed of different motors by selecting the target gear. Specifically, during operation, if the user rotates the manual speed regulation module 509 , the second control unit can obtain the user's adjustment instruction through the electrical connector 30 and adjust the working parameters of the motor 609 according to the adjustment instruction. In this way, the speed regulation function of the main body of the electric tool is integrated into the control device, that is, the control device can be used to output a speed regulation signal to the electric tool, so that the electric tool does not need to integrate the speed regulation function.

In order to realize the power transmission of the control device 500 to the heat gun 600 and the adjustment of the working parameters of the motor 609, the cable 53 is a multi-core cable. Specifically, the cable 53 has two wires for transmitting power and one signal core wire for transmitting command signals. Wherein, the signal core wire is electrically connected to the aforementioned first user operation unit and the second control unit.

Correspondingly, as mentioned above, both the male connector and the female connector of the electrical connector are provided with three terminals, which are two power terminals and one signal terminal.

In this embodiment, as shown in FIGS. 11 and 12 , the battery pack 700 is replaceably installed on the control device 500 through the battery pack mounting portion 506 , and the control device 500 can be equipped with at least two battery packs with different battery capacities. Improve the battery life of the Heat Gun 600.

Specifically, the battery pack mounting portion 506 may be an electrode holder on the control device 500 , and the power tool battery (also referred to as the battery pack 700 ) has an electrode holder interface 707 . Wherein, in order to improve the adaptability of the control device 500 , the electrode holder 506 and the electrode holder interface 707 may adopt a general interface.

It can be seen from the above solutions that the control device 500 according to the embodiment of the present application is provided with the first housing 510, the first control unit, the first user operation unit, the battery pack mounting part 506 and the first interface 505; 600 does not need to be provided with a battery pack mounting part for connecting the battery pack 700; and the adjustment function part of the power tool 600 is integrated on the control device 500, which simplifies the design of the power tool 600, that is, the adjustment function module of the power tool, the power supply Provided separately from the power tool 600. In this way, on the one hand, the volume and weight of the power tool 600 can be reduced; on the other hand, when using the power tool 600 for specific operations, it is only necessary to connect the power tool 600 to the control device 500 through the cable 53 , and then connect the control device 500 Set aside, the user can operate by holding the power tool 600 itself. In addition, since the cable 53 can be bent, the distance between the power tool 600 and the control device 500 can be changed during operation, so that the movement of the power tool 600 is more convenient and the man-machine experience is better.

In this embodiment, the control device 500 is not provided with a control part for controlling the operation of the electric tool 600, and is only responsible for generating the adjustment signal to the electric tool 600, the control function is still undertaken by the electric tool 600 itself, and the electric tool 600 performs its own work according to the adjustment signal parameter adjustment.

In the present embodiment, the control device 500 can be connected with various electric tools through the cable 53 to control the operation thereof, so that the reuse of the control device 500 can be realized, which can not only improve the adaptability of the control device 500, but also reduce the power tools. The production cost of the system. Furthermore, because the electric tool 600 described in the embodiment of the present application adopts the brushless motor 609, the efficiency is higher.

As shown in FIG. 11 , the first user operation unit may further include a first switch 508 provided on the casing 510 . The first switch 508 is used to control the power transmission from the battery pack 700 to the power tool 600 , thereby controlling the turning on and off of the motor 609 . When using the power tool 600 , the user only needs to trigger the first switch 508 on the first housing 510 , and the power flows from the battery pack 700 to the motor 609 through the control device 500 .

Disposing the switch 508 for controlling the start and stop of the motor 609 on the control device 500 simplifies the structure of the electric tool 600, but also brings inconvenience to the operation to a certain extent. For example, when performing a specific operation, the user only holds the power tool 600 itself, and the control device 500 is placed aside through the cable 53; when the working state of the motor 609 needs to be changed, the user must go to the place where the control device 500 is placed. The control device 500 operates to control the motor 609 .

To this end, in a possible implementation manner, the second switch may be provided only on the second housing 601 of the power tool 600 . The second switch is used to control the on and off of the motor 609 . The second switch may be a membrane switch. Of course, the second switch is not limited to being a membrane switch, but may also be other switches, such as a photosensitive switch, which is not specified in this application.

In this embodiment, two USB output interfaces are further provided on the side of the control device 500 . The USB output interface outputs the target voltage for charging external power devices, such as mobile phones. To this end, the first control unit further includes a voltage conversion module for converting the supply voltage of the battery pack 700 into a target voltage.

The size of the target voltage is set according to the needs of external equipment. In a possible implementation, the USB output interface can output power with a target voltage of 5V and a current of 1A.

In the present embodiment, as shown in FIG. 10 , the second housing 601 of the power tool 600 has a hollow structure. The hollow portion forms a second accommodating cavity. The motor 609 is accommodated in the second accommodating cavity. Furthermore, the motor 609 can be protected by the second casing 601 to improve safety.

In this embodiment, as shown in FIG. 11 , the control device 500 includes a first casing 510 and a first control unit disposed in the first casing 510 . The first casing 510 is a hollow structure. The hollow portion forms a first accommodating cavity. The first control unit is accommodated in the first accommodating cavity, so that the first control unit can be protected by the first housing 510 . On the other hand, when the first control unit needs to be upgraded and repaired, the first control unit can be repaired and upgraded by opening the first housing 510, which facilitates the operation.

In this embodiment, as shown in FIGS. 11 and 12 , the battery pack mounting portion 506 is provided on the first case 510 . Specifically, the battery pack mounting portion 506 is disposed on the lower side of the first housing 510 , and the battery pack mounting portion 506 is slidably connected to the battery pack 700 . When the battery pack 700 is connected to the battery pack mounting part 506 and the control device 500 is connected to the power tool 600 through the cable 53 , the battery pack 700 forms a loop with the first control unit and the motor 609 ; thus the battery pack 700 can provide power for the motor 609 .

In a possible implementation, the first control unit may be electrically connected to the battery pack mounting portion 506 or the power plug-in portion, so that the battery pack 700 or an external power source can provide power to the power tool 600 . Specifically, when the battery pack 700 is electrically connected to the battery pack mounting portion 506 , the battery pack 700 forms a loop with the first control unit and the motor 609 . Alternatively, when the external power source is electrically connected to the power socket, the external power source forms a loop with the first control unit and the motor 609 , so that the external power source can provide power for the motor 609 .

Further, the first control unit can be electrically connected to one of the battery pack mounting portion 506 and the power plug-in portion through the control circuit, so as to prevent the first control unit from being connected to the battery pack mounting portion 506 and the power source plug-in portion at the same time. .

Further, when the first control unit is electrically connected to the power socket, the first control unit is also used to transform the external power, so as to control the voltage distributed by the external power to the motor 609 . Specifically, the first control unit further includes a rectification module. The rectifier module is used to transform the external power supply.

For example, the rectifier module is used to convert the voltage output by the external power supply into a DC voltage within a preset voltage range, and output the DC voltage to the electric tool. Since the working voltage of the motor 609 is usually DC voltage, when the external power source is AC power, the rectifier module can convert the AC power of the external power source into DC power for the motor 609 to use. For example, when the external power source is an AC voltage of 220 volts and 50 hertz, the rectifier module can convert the AC voltage of 220 volts and 50 hertz into a DC voltage of 250 volts, for example.

In one embodiment, as shown in FIG. 11 and FIG. 12 , the control device 500 of the embodiment of the present application further includes: a battery pack 700 for connecting to the battery pack mounting part 506 ; or for connecting to a power outlet external power supply; both the battery pack 700 and the external power supply are used to power the power tool. The external power supply can be a piggyback power supply. For example, the external power supply is a backpack-type power supply or a waist-pack-type power supply. Of course, the external power supply is not limited to a backpack power supply, but may also be other power supplies, which are not specified in this application.

It can be seen from the above solutions that, in the electrical connector provided by the present application, the male connector or the female connector is configured to include 3 terminals, which are respectively 2 power terminals and 1 signal terminal. Wherein, the power terminal is used to transmit the power of the battery pack to the power tool, and the signal terminal is used to electrically connect the first user operation unit and the second control unit, so that the power tool can obtain the user's operation on the first user operation unit to adjust The working parameters of the work part.

That is to say, in the electrical connector provided by the present application, in addition to the power supply terminals, signal terminals for transmitting operation commands are also provided. The power supply of the power tool is installed, which reduces the user's holding burden; on the other hand, the control device integrates the adjustment function of the power tool, the functional integration of the power tool is reduced, and the power tool itself is more compact, which is more convenient for users to operate.

Moreover, since the male connector or the female connector is only provided with one signal terminal for transmitting signals, only the adjustment function of the electric tool is integrated in the control device, and the control function of the electric tool is still integrated in itself. In this way, compared with those technical solutions that integrate the control function on the control device, that is, those male connectors or female connectors provided with two or more signal terminals, the control device provided by the present application can be compatible with more Multiple types of power tools are used together, and the adaptability can be further expanded.

This is because: since different power tools and updated power tools usually have different working parameters, if the control function is integrated on the control device, the control device will inevitably need to store a lot of control strategies for selection; product, the old controls are either abandoned or the configuration needs to be upgraded to match the new power tool product. In this way, the control device often needs to be adjusted or even replaced; and in the present application, the control function is still placed on the power tool, and the control device is only responsible for generating adjustment signals to the power tool, so that the control device can be more flexible. The matching of the electric tools of the present invention improves the application breadth and high applicability; the reuse of the control device can not only improve the adaptability of the control device of the present application, but also reduce the production cost of the entire system.

Here, it should be noted that when the control function is integrated on the control device, in order to realize that the control device can select corresponding control strategies according to different tool types, the control device must be able to identify different electric tools. That is to say, there must be information interaction between the control device and the power tool, so the male connector or the female connector must be provided with two or more signal terminals.

As mentioned above, the control device provided by the present application integrates the adjustment function of the power tool, so that the user can adjust the working parameters of the power tool, such as adjusting the temperature and speed of the working part, by operating the first user operating unit.

Of course, in a possible implementation, the power tool may not be involved in the adjustment of the working parameters, and it only receives the power from the battery pack through the control device. At this time, the power tool end is not provided with a part that is electrically connected to the signal terminal of the electrical connector, and the signal terminal of the electrical connector is idle.

It can be seen from the above solutions that, compared with those male connectors or female connectors provided with 4 or more terminals, the electrical connector provided by the present application is provided with 2 power terminals and 1 signal terminal, so that the The control device only integrates the adjustment function of the power tool, and the control function is still integrated in the power tool itself, so that the control device can be more flexibly matched with different power tools, which improves the application breadth and has high applicability; the reuse of the control device, The adaptability of the control device of the embodiment of the present application can also be improved, and the production cost of the entire system can be reduced.

We know that in the power tool system of the present application, when using the power tool to perform specific operations, it is only necessary to connect the power tool to the control device through a cable, and then put the control device aside, and the user can hold the power tool itself to operate . Since the cable can be bent, the distance between the power tool and the control device can be changed during operation, so that it is more convenient to move the power tool and the human-machine experience is better. And when the male connector or the female connector is configured to include 4 or more terminals, the radial size of the corresponding cable for connecting the control device and the power tool will also become larger, and the hardness will also become stiffer, which makes The user's flexibility is greatly reduced when holding the power tool for operation. In particular, the control device of the present application is used in a scenario that can cooperate with various electric tools, that is, the frequency of use of the control device is high, so the flexibility requirements of the cable fixedly connected to the control device will also be higher. Specifically, when the male connector or the female connector is configured to include 3 terminals, that is, when the cable accommodates 3 wires inside, the radial dimension of the cable is about 6.2 mm, and when the male connector or the female connector is configured to When including 4 terminals, the radial dimension of the cable is about 6.7mm; and when the male or female connector is configured to include 5 terminals, the radial dimension of the cable is about 7.7mm.

Moreover, the more wires inside the cable, the greater the possibility of collision between the wires and the greater the possibility of twisting; this will accelerate the wear between the wires and affect the reliability of the cable itself.

The electrical connector provided by the present application realizes the power transmission between the control device installed with the battery pack and the power tool with high current demand, and has high safety; The retention force that the user maintains in the connected state is set within a reasonable range, which not only satisfies the reliability of high-current transmission, but also facilitates user operation and improves user experience.

The power tool system of the present application realizes the connection between the control device installed with the battery pack and the power tool through the electrical connector, so that the power tool does not need to be provided with a power supply for supplying power to the working parts. That is to say, the power supply and the power tool are set separately. This reduces the size and weight of the power tool on the one hand. On the other hand, when operating the power tool by holding the second housing, the control device can be placed on one side, and the user does not have to bear its weight; and the control device in the power tool system can be used for a variety of power tools. In this way, not only can the control device be improved The adaptability of the device can also reduce the production cost of the power tool.

In a possible implementation manner, the present application further provides a control device assembly, which includes the aforementioned control device and a male joint. The male connector is used for mating with the female connector. In addition, the male connector is fixedly connected to the control device through a cable or directly fixedly connected to the control device.

In a possible implementation manner, the present application further provides a control device assembly, which includes the aforementioned control device and a female connector. The female connector is used for mating with the male connector. In addition, the female connector is fixedly connected to the control device through a cable or directly fixedly connected to the control device.

In a possible embodiment, the present application further provides a power tool assembly, which includes the aforementioned power tool and a female connector. The female connector is used for mating with the male connector. Moreover, the female connector is fixedly connected to the power tool through a cable or directly fixedly connected to the power tool.

In a possible embodiment, the present application further provides a power tool assembly, which includes the aforementioned power tool and a male connector. The male connector is used for mating with the female connector. In addition, the male connector is fixedly connected with the electric tool through a cable or directly and fixedly connected with the electric tool.

All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of" describing a combination shall include the identified element, component, component or step as well as other elements, components, components or steps that do not materially affect the essential novel characteristics of the combination. Use of the terms "comprising" or "comprising" to describe combinations of elements, ingredients, components or steps herein also contemplates embodiments consisting essentially of those elements, ingredients, components or steps. By use of the term "may" herein, it is intended to indicate that "may" include any described attributes that are optional. A plurality of elements, components, components or steps can be provided by a single integrated element, component, component or step. Alternatively, a single integrated element, component, component or step may be divided into separate multiple elements, components, components or steps. The disclosure of "a" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other. The above-mentioned embodiments are only for illustrating the technical concept and characteristics of the present invention, and its purpose is to enable those who are familiar with the art to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention with this. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.

Claims (17)

1. A male connector of an electrical connector for connecting with a female connector, characterized in that:

   The male connector is connected to one of the power tool and the control device; the female connector is connected to the other of the power tool and the control device, and the control device is provided with a mounting part for connecting the battery pack; the male connector A connector is connected to the female connector so that the power tool receives power transmitted from the control device via the male connector and the female connector; the male connector is provided with 3 male terminals, the 3 male terminals Constructed to include 2 power terminals and 1 signal terminal.
2. The male connector of the electrical connector according to claim 1, wherein the maximum current allowed to flow through the power terminal is between 9A-13A.
3. The male connector of the electrical connector according to claim 1, wherein the maximum current allowed to flow through the power terminal is between 10A-12A.
4. The male connector of the electrical connector of claim 1, wherein the male connector is a plug, and the plug is provided with pins, including a first pin and a second pin configured as the power terminal pin and a third pin configured as the signal terminal.
5. The male connector of the electrical connector according to claim 4, wherein the shape and size of the first pin and the second pin are the same; and the diameter of the first pin is 1.98 mm Between mm-2.02mm.
6. The male connector of an electrical connector according to claim 1, wherein the male connector is connected to the control device or the power tool through a cable.
7. A control device assembly for connecting with a power tool to provide power for the power tool, the control device assembly comprising:

   a control device provided with a mounting portion for connecting the battery pack;

   It is characterised in that the control device assembly further comprises the male connector of the electrical connector according to any one of claims 1-6.
8. A power tool assembly is used for connecting with a control device and receiving power transmitted by the control device; the control device is provided with a mounting part for connecting a battery pack; the power tool assembly comprises:

   electrical tools,

   It is characterised in that the power tool assembly further comprises a male connector of the electrical connector according to any one of claims 1-6.
9. A female connector of an electrical connector is used to connect with a male connector; it is characterized in that:

   The female connector is connected to one of the power tool and the control device; the male connector is connected to the other of the power tool and the control device, and the control device is provided with a mounting part for connecting the battery pack; the male connector a connector is connected to the female connector such that the power tool receives power transmitted from the control device via the male connector and the female connector;

   The female connector is provided with 3 female terminals configured to include 2 power terminals and 1 signal terminal.
10. 10. The female connector of an electrical connector of claim 9, wherein the female connector is a receptacle, the receptacle including first and second clips configured as the power terminals and configured as the The third clamping member of the signal terminal; wherein the first and second clamping members are respectively arranged in the first and second jacks, the third clamping member is arranged in the third jack, and the first The first, second and third clamping members are all made of conductive materials.
11. The female connector of the electrical connector according to claim 10, wherein the first and second clamping members are hollow cylindrical structures, and the peripheral walls thereof are provided with cutting grooves; The inner diameter of the holder in the natural state is between 1.9mm-1.94mm.
12. The female connector of an electrical connector according to claim 9, wherein the female connector is connected to the control device or the power tool through a cable.
13. A control device assembly for connecting with a power tool to provide power for the power tool, the control device assembly comprising:

    a control device provided with a mounting portion for connecting the battery pack;

    It is characterised in that the control device assembly further comprises the female connector of the electrical connector according to any one of claims 9-12.
14. A power tool assembly is used for connecting with a control device and receiving power transmitted by the control device; the control device is provided with a mounting part for connecting a battery pack; the power tool assembly comprises:

    electrical tools,

    It is characterised in that the power tool assembly further comprises the female connector of the electrical connector according to any one of claims 9-12.
15. A power tool system, comprising:

    electrical tools;

    a control device provided with a mounting portion for connecting the battery pack;

    An electrical connector includes a male connector and a female connector; wherein one of the male connector and the female connector is used to connect an electric tool, and the other is used to connect a control device; the male connector and the female connector are electrically connected to each other. The power tool receives the power transmitted from the control device through the electrical connector; the male connector is provided with three male terminals, and the female connector is correspondingly provided with the three male terminals. 3 female terminals to which the terminals are adapted, and the 3 male terminals and the 3 female terminals are each configured to include 2 power terminals and 1 signal terminal.
16. 16. The power tool system of claim 15, wherein the male connector is configured as a plug for connecting with the control device via a cable, and the female connector is configured as a socket for connecting with the power tool; In addition, the control device is provided with a first user operation unit, the first user operation unit is electrically connected with the male connector; the power tool is provided with a second control unit, the second control unit is connected with the The female connector is electrically connected; when the male connector and the female connector are electrically and mechanically connected, the first user operation unit is electrically connected to the second control unit.
17. The power tool system according to claim 15, wherein the electrical connector is further provided with a holding unit for holding the male connector and the female connector in a connected state; the holding unit comprises a An elastic coupling portion on one of the male joint and the female joint, and a secondary coupling portion provided on the other of the male joint and the female joint for cooperating with the elastic coupling portion.

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